WO1995026490A1 - Improved disc launcher - Google Patents

Improved disc launcher Download PDF

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Publication number
WO1995026490A1
WO1995026490A1 PCT/US1995/003270 US9503270W WO9526490A1 WO 1995026490 A1 WO1995026490 A1 WO 1995026490A1 US 9503270 W US9503270 W US 9503270W WO 9526490 A1 WO9526490 A1 WO 9526490A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc
launching
wall
slot
handle
Prior art date
Application number
PCT/US1995/003270
Other languages
French (fr)
Inventor
William K. Kohl
Original Assignee
Testy Putts Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/218,119 external-priority patent/US5465704A/en
Priority claimed from US08/386,411 external-priority patent/US5579748A/en
Application filed by Testy Putts Corporation filed Critical Testy Putts Corporation
Priority to AU21207/95A priority Critical patent/AU2120795A/en
Publication of WO1995026490A1 publication Critical patent/WO1995026490A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B3/00Sling weapons

Definitions

  • This invention relates to mechanical guns and projectors, and more particularly to disc launchers.
  • Relatively inexpensive, milk caps now generate considerable interest among children as well as businesses that see milk caps with their logos as promotional material.
  • No U.S. patents have been issued for launchers designed to utilize small cardboard discs, though inventors have created devices to launch the popular "Frisbee" type of flying disc.
  • Bridgeman, Glickson, and Glass launchers are complex devices with multiple functioning parts such as pivots, arms, clamps, hinges, and/or multiple handles.
  • Galvin, Glass, and Cutlip also describe their devices as being in some way flexible or having flexible members.
  • the disc launcher includes a handle and a means attached to said handle for launching a disc.
  • the means for launching is a head having a proximal end adjacent the handle and a distal end.
  • a curved slot runs through the entire arc of the curved head from the proximal end to the distal end.
  • the slot is open at the proximal end and at the distal end.
  • the slot is defined by four walls, two major opposite walls and two minor opposite walls. The four walls of the slot define a rectangular shape in cross-section.
  • the head is curved in a substantially semi-circular arc of approximately 180°.
  • a disc inserted in the slot opening near the handle is launched from the other slot opening when accelerated by centrifugal forces caused by the disc launcher being swung forward by the handle.
  • a cylindrical multi-loading chamber is provided on the flat portion of the head discussed above at the proximal end adjacent the handle.
  • the opening at the proximal end discussed above is removed.
  • the chamber has a cavity for storing discs.
  • the launcher has an opening which allows the cavity to communicate with the slot. The opening is sized to permit a disc to pass from the cavity to the slot.
  • the launcher further has a tensioning means for tensioning the discs against each other and against the opposing major wall defining the slot.
  • the tensioning means includes a stopper inserted within the chamber and a rubber band tensioning the stopper against the discs.
  • a shaft is inserted in an opening at the proximal end of the head adjacent the handle. The shaft is adapted to slide and move a disc from a tensioned position within the slot to a freely movable position within the slot for launching thereof.
  • the launcher includes a plurality of triangle positions which extend the length of the minor wall that the disc rolls against during launching.
  • the triangular portions or teeth improve the acceleration of the disc as it travels through the slot.
  • the launcher further includes at least one slit in the minor wall to release objects such as coins.
  • one or both of the major walls may also have an opening to release such objects.
  • Fig. 1 shows a perspective view of a basic version of my disc launcher
  • Fig. 2 shows an exploded view of the disc launcher of Fig 1;
  • Fig. 3A shows the preferred embodiment of my disc launcher
  • Fig. 3B shows a detail of the slot in the preferred embodiment of my disc launcher
  • Figs. 4A and 4B show a top plan view and a side view of a typical disc respectively;
  • FIGs. 5A and 5B show the operation of my disc launcher
  • Fig. 6 illustrates an exploded perspective view of the disc launcher incorporating a multi- loading chamber according to another embodiment of the present invention
  • Fig. 7 illustrates a top plan view of the disc launcher shown in Fig. 6
  • Fig. 8 illustrates a cross-sectional view of the disc launcher taken along lines 8-8 in Fig. 7 with a disc loaded in a launching state
  • Fig. 9 illustrates a cross-sectional view of the disc launcher taken along lines 8-8 in Fig. 7 with a disc in an unloaded non-launching stored state
  • Fig. 10 illustrates a cross sectional view of the disc launcher shown in Fig. 8 taken along lines 10-10;
  • Fig. 11 illustrates a cross sectional view of the disc launcher shown in Fig. 9 taken along lines 11-11;
  • Fig. 12 illustrates a side view of the disc launcher shown in Fig. 6;
  • Fig. 13 illustrates a bottom plan view of the disc launcher shown in Fig. 6;
  • Fig. 14 illustrates the disc launcher of Fig. 6 showing multi-loading chamber in an open cut view
  • Fig. 15 illustrates the basic operation of the disc launcher shown in Fig. 6;
  • Fig. 16 illustrates teeth on the inner surface of the outer minor wall of a disc launcher
  • Fig. 17 illustrates an exploded view of the disc launcher in Fig. 2 in accordance with another embodiment of the present invention.
  • FIG. 1 shows a handle 1 attached to a head 2 with a slot 3 in the head with a slot opening 4 and a slot opening 5.
  • Head 2 is curved in a substantially semi-circular arc of approximately 180°. Head 2 has a proximal end adjacent handle 1 and a distal end adjacent the slot opening 5.
  • Slot 3 runs the entire length of head 2, slot opening 4 being located at the end of the head nearest handle 1 and slot opening 5 being located at the other end of the head.
  • Slot 3 is created when, as indicated in Fig. 2, spacer 8a and spacer 8b are sandwiched between top-side piece 6 and bottom-side piece 7 and glued in place.
  • Spacer 8a completes the structure of handle 1 and forms the outer curved wall of slot 3 and spacer 8b forms the inner curved wall of the slot.
  • Spacers 8a and 8b are positioned approximately 5 cm apart.
  • slot 3 has a rectangular cross-sectional shape and measures roughly .35 cm on the minor walls by 5.0 cm on the major walls.
  • the radius of the arc of the curved head is roughly 11.5 cm measured to the outside of the head.
  • the disc launcher is typically 38.5 cm long including handle 1 and roughly 1.0 cm in thickness.
  • Fig. 3a shows the preferred embodiment of my disc launcher in accordance with the invention in which case the disc launcher is made of molded rigid plastic formed in complementary halves which are glued together.
  • Fig. 3a shows one of the halves.
  • the spacers 8a and 8b used to create slot 3 in the basic version in Figs. 1 and 2 are formed in the mold as part of the complementary halves of the preferred embodiment and are thus eliminated as separate pieces.
  • slot 3 in Fig. 3a incorporates tracks 9 along the major walls of the slot and a series of troughs 10 recessed slightly below tracks 9 and set radially around the slot.
  • a detail of the inner surfaces of slot 3 in the preferred embodiment is shown in Fig 3b.
  • Tracks 9 and troughs 10 can be clearly seen in Fig 3b and slot opening 5 is shown at the rear of the detail.
  • the curve of slot 3 as shown in Fig 3a has been straightened in Fig 3b to simplify the drawing.
  • OPERATION Figs. 4a and 4b show a typical cardboard disc known commonly in paper trade journals as a milk cap or "pog" but is referred to as a disc herein.
  • Fig. 4a shows a view of a disc from either identical top or bottom face.
  • Fig. 4b shows a disc from an oblate view as it would be inserted into slot opening 4 (Fig. 5a) .
  • the manner of launching the above described disc with my disc launcher is to hold handle 1 in either the left hand or right hand as shown in Fig. 5b.
  • the disc launcher is held approximately level and at the side of the body, slot openings 4 and 5 of head 2 facing forward. This body position is not shown.
  • a disc is inserted into slot opening (Fig. 5a) .
  • the disc launcher is held with the hand cocked 11 slightly back as shown in Fig 5b and then rapidly pivoted forward 12 by a snapping motion of the wrist. This snapping motion of the wrist generates centrifugal forces within the curve of the disc launcher, rolling the disc along the outer curved minor wall of slot 3.
  • the disc accelerates as it travels through the slot and is launched-from slot opening 5 (Fig. 5a) as the user's hand reaches launch position 13 (Fig. 5b) .
  • the disc travels as described above and is confined to the space between the major walls of slot 3 by tracks 9.
  • Tracks 9 are set at just sufficient width as to facilitate passage of the appropriate disc but are wide enough apart so that common coins or other similar sized objects inserted into the launcher will not contact both tracks 9 on either major wall of slot 3, but will instead tend to catch in the recessed series of troughs 10 and thereupon not accelerate sufficiently for launching.
  • the common coins would require shaking to dislodge.
  • the disc launcher of this invention will easily and effectively launch the described cardboard disc. Furthermore, the disc launcher has the further advantages in that it will not launch common coins; it has not moving, loose, or flexible parts and is therefore easy to assemble in a basic version or by mass-production methods in the preferred embodiment.
  • its ejective force is determined by the user's physical strength as opposed to a triggering mechanism of some complex design so that the disc launcher's capacity for harm among small children is therefore reduced.
  • the disc launcher can have two or more adjacent slots sandwiched into the head to simultaneously launch multiple discs.
  • the size of the slot can be altered to accommodate a differently sized disc.
  • a disc launcher 18 is shown incorporating means for supplying a disc to the launcher for launching the disc in accordance with another embodiment of the present invention.
  • This means is hereinafter referred to as a multi- loading chamber 20.
  • the multi-loading chamber 20 includes a cylindrical tube 22 attached to the head 2 near the proximal end thereof adjacent handle 1.
  • the tube 22 is molded on the outside surface of head 1.
  • the tube 22 has an opening 24 for receiving a plurality of discs 26 and a cavity (not shown in Fig. 6) in communication therewith for storing the discs 26.
  • the disc launcher has been molded to remove opening 4 for receiving a disc inserted by hand which exists in the embodiments shown in Fig. 1-5B.
  • the multi-loading chamber 20 further includes a tension means which comprises a cylindrical stopper 30 and a rubber band 32.
  • Cylindrical stopper 30 has a diameter in cross-section just slightly smaller than the diameter of tube 22. This allows stopper 30 to enter opening 24 and slide freely within the cavity of tube 22.
  • the stopper 30 has a groove 34 on the top surface 38 thereof extending across the diameter thereof.
  • Cylindrical tube 22 includes a ledge 36 on each side thereof (only one shown in Fig. 6) .
  • rubberband 32 fits within groove 34 on top surface 38 of stopper 30 and wraps around ledges 36 in order to tension or bias the bottom surface 40 of stopper 30 against discs 26 stored in the tube 22.
  • the discs 26 are thus generally tensioned against the opposing major wall of slot 3. This will be discussed in more detail below.
  • multi-loading chamber 20 further includes a loading mechanism 50 for loading a disc in a launching position within slot 3.
  • Loading mechanism 50 includes a shaft 52 positioned within an opening at the proximal end of the launcher 18.
  • the shaft 52 includes a knob 54 at one end thereof and a guide 56 at the other end thereof.
  • the knob 54 is appropriately shaped so that a child may easily grasp it with his/her thumb and forefinger.
  • the launcher 18 includes a linear opening 58 along the bottom thickened portion 60 thereof and a channel 62 in the rear thereof which communicates with the linear opening 58 and the opening in the rear of the launcher 18 for shaft 52.
  • the channel 62 is shaped in the form of a "cross" as best seen in Fig. 11.
  • the shaft 52 is shaped similarly to channel 62 and adapted to slide therethrough.
  • Guide 56 extends through linear opening 58 in the launcher 18 along the bottom thickened portion 60 thereof.
  • shaft 52 has a raised portion 64 substantially along the length thereof as one of the sides that defines its "cross" shape.
  • the raised portion 64 communicates with the cavity of tube 22 to contact the bottom disc 72 as discussed below.
  • the launcher 18 includes a brace 66 screwed to the thickened portion 60 of the launcher 18 at the proximal end thereof.
  • the brace 66 is generally shaped in the form of a "U" having the open area facing the guide 56.
  • the brace 66 is positioned on the launcher 18 to permit the shaft 52 to move between two positions. In the first position, the shaft 52 is fully extended and the guide 56 is braced against brace 66. In the second position, the shaft 52 is fully inserted within the launcher 18, and guide 56 is braced against the edge defining the end of linear opening 60 farthest from brace 66.
  • the raised portion 64 extends along the top length of shaft 52 but terminates, short of the end thereof, with wall 68, leaving a ledge 70 on shaft 52 adjacent guide 56.
  • the top surface of the raised portion 64 acts as part of the surface of the major wall of the track (not shown in Figs. 6- 15) .
  • the disc launcher 18 in this embodiment includes the same track and troughs structure in the slot discussed above with respect to the preferred embodiment shown in Figs. 1-5B. As stated above, the discs 26 are biased within tube 22.
  • the wall 68 is aligned parallel to the wall of tube 22, positioned just outside thereof. Because tension is maintained on all of the discs within the cavity including disc 72 next to be launched, the bottom disc 72 remains flush against the (1) opposing major wall of the track in the slot 3 and the (2) ledge 70. In this position, the disc 72 is in an unlaunching state. In the second position as shown in Fig. 8, the disc is in an unbiased position within the slot 3 free for launching.
  • a child would grasp the knob 54 and pull the shaft into the first position so that the next disc in sequence may move into the slot 3.
  • the child would then push the shaft 52 into channel 62.
  • the wall 68 contacts the peripheral edge of the disc 72 and causes it to slide into the launching position in slot 3 shown in Fig. 8.
  • the disc 72 may then be launched.
  • the next disc in sequence in the cavity will then move down once the shaft 52 is pulled back to its extended position. Since the multi-loading chamber holds several discs this process may be repeated many times.
  • Fig. 15 illustrates the basic operation of the disc launcher with the multi-loading chamber. Note that because tension is maintained on all discs by the biasing structure, i.e., the rubber band 32 and stopper 30, the launcher 18 may be operated by right handed as well as left handed children.
  • Fig. 16 illustrates a disc launcher 100 with means for improving the acceleration of the disc and the launching thereof as it travels through the slot 102.
  • This means comprises teeth 104 which are aligned along the entire length of the outer minor wall 106 of the slot 102.
  • the teeth 104 are triangular shaped portions, each extending across the width of the minor wall from major wall to major wall.
  • the respective triangle portions are contiguous, i.e., there is no space between the base of adjacent triangular portions.
  • the teeth 104 improve the acceleration of the disc as it travels through the slot 102 by acting like friction, i.e., by preventing the disc from sliding along the inner surface of the outer minor wall 104 as a result of the centrifugal force placed upon the disc by the movement of the launcher 100 as described above.
  • teeth 104 are shown in a slot having a curved shape. However, the teeth 104 may be employed in a straight linear slot that will obtain the same result.
  • the teeth 104 i.e., triangular portions may also be spaced apart and raised as desired to obtain the same result described above. Note that different shaped portions, such as rectangular portions with spaces between respective rectangular portions, may be used instead of the triangular portions. However, the triangular portions achieve the best result.
  • Fig. 17 illustrates the basic version of the disc launcher shown in Fig. 2 including slits 110 along the outside minor wall 112 of the slot.
  • the slits 110 are openings which allow the slot to communicate with the outside environment.
  • the slits 110 are sized smaller than the size of the disc to allow an object such as a coin to release from launcher in the early stages of travel through the slot.
  • the number of slits are not limited to two slits as shown, and are also not limited to the bottom half of the slot (closest to the handle) .
  • the launcher 108 also includes holes 114 on the major walls of the slot.
  • the holes 114 are openings that are also sized to permit objects such as coin to release as it travels through the slot but not large enough to impede the movement of the disc as it travels through the slot. In this embodiment, as can be seen from Fig. 17, the holes 114 have replaced the trough structure discussed above.
  • Paper 116 may be laminated to the outside surface of the major walls with flaps cut at the appropriate location above corresponding holes to permit the coins to release as described.
  • the paper 116 may have graphics printed as desired.
  • the embodiment shown in Fig. 17 may be made of rigid planar material such as clipboard as described for Fig. 2 but may also be made of cardboard or other material.

Abstract

A rigid, hand-held disc launcher is provided for launching small cardboard discs, having a handle (1) attached to a head (2) which is curved in a substantially semi-circular arc of approximately 180 degrees. A slot (3) runs through the entire arc of the curved head with a first opening (4) in the head near the handle and a second opening (5) being located at the other end of the head. A disc inserted in the first opening is launched from the second opening when accelerated by centrifugal forces caused by the disc launcher being swung forward by the handle. A wall of the slot may include a trough (10) to prevent objects smaller than the disc from being launched. The launcher may include a cavity (22) for storing a plurality of discs. A wall of the slot may include teeth (104) to improve acceleration of the disc.

Description

IMPROVED DISC LAUNCHER Background of the Invention
This invention relates to mechanical guns and projectors, and more particularly to disc launchers. Prior to the contemporary popular appeal of new cardboard milk caps as well as antique milk caps as collectible items there has been little or no occasion for the creation of a launcher for small cardboard discs. Relatively inexpensive, milk caps now generate considerable interest among children as well as businesses that see milk caps with their logos as promotional material. No U.S. patents have been issued for launchers designed to utilize small cardboard discs, though inventors have created devices to launch the popular "Frisbee" type of flying disc.
U.S. patents 5,232,226 to Glickson August 3, 1993? 5,181,500 to Chamberland January 26, 1993; 4,984,556 to Glass January 15, 1991 and 4,730,595 March 15, 1988 also to Glass; 4,872,688 to Galvin October 10,* 1989; 4,347,828 to Bridgeman September 7, 1982; and 4,157,828 to Cosmopulos June 12, 1979 are all such flying disc launchers. U.S. patent 4,974,574 to Cutlip December 4, 1990 is a multiple launcher for the popular plastic flying disc. The launchers of Glickson, Chamberland, Galvin, and Cosmopulos are described as disc catchers as well and the Cosmopulos device is large and requires two hands to hold. U.S. patents 2,493,245 to Hansen January 3,
1950 and 2,481,522 to Livermon February 28, 1945 as well as the afore mentioned Bridgeman, Glickson, and Glass launchers are complex devices with multiple functioning parts such as pivots, arms, clamps, hinges, and/or multiple handles.
Galvin, Glass, and Cutlip also describe their devices as being in some way flexible or having flexible members. Objects and Summary of the Invention
Accordingly, besides the objects and advantages of the disc launcher described herein, several objects and advantages of the present invention are: (a) to provide a disc launcher that utilizes a commonly available, lightweight, and relatively inexpensive cardboard milk cap as a missile,
(b) to provide a disc launcher whose ejective force and range are determined by the physical strength and skill of the user so to limit its capacity for harm among children,
(c) to provide a disc launcher that would not launch common coins,
(d) to provide a disc launcher with no moving or flexing parts, and
(e) to provide a disc launcher that is possible to manufacture by both small scale and mass production methods.
A further object and advantage is to provide a disc launcher that is itself lightweight and of simple, inexpensive construction. Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings. The above objects are achieved by a disc launcher in accordance with the present invention. The disc launcher includes a handle and a means attached to said handle for launching a disc. The means for launching is a head having a proximal end adjacent the handle and a distal end. A curved slot runs through the entire arc of the curved head from the proximal end to the distal end. The slot is open at the proximal end and at the distal end. The slot is defined by four walls, two major opposite walls and two minor opposite walls. The four walls of the slot define a rectangular shape in cross-section.
The head is curved in a substantially semi-circular arc of approximately 180°. A disc inserted in the slot opening near the handle is launched from the other slot opening when accelerated by centrifugal forces caused by the disc launcher being swung forward by the handle. In one or both of the major walls, there is a trough sized smaller than the disc to prevent the acceleration and launching of objects smaller than the disc.
In another embodiment of the launcher, a cylindrical multi-loading chamber is provided on the flat portion of the head discussed above at the proximal end adjacent the handle. The opening at the proximal end discussed above is removed. The chamber has a cavity for storing discs. The launcher has an opening which allows the cavity to communicate with the slot. The opening is sized to permit a disc to pass from the cavity to the slot. The launcher further has a tensioning means for tensioning the discs against each other and against the opposing major wall defining the slot. The tensioning means includes a stopper inserted within the chamber and a rubber band tensioning the stopper against the discs. A shaft is inserted in an opening at the proximal end of the head adjacent the handle. The shaft is adapted to slide and move a disc from a tensioned position within the slot to a freely movable position within the slot for launching thereof.
In further embodiments, the launcher includes a plurality of triangle positions which extend the length of the minor wall that the disc rolls against during launching. The triangular portions or teeth improve the acceleration of the disc as it travels through the slot. The launcher further includes at least one slit in the minor wall to release objects such as coins. Instead of the trough structure discussed above, one or both of the major walls may also have an opening to release such objects.
Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings. Brief Description of the Drawings
Fig. 1 shows a perspective view of a basic version of my disc launcher; Fig. 2 shows an exploded view of the disc launcher of Fig 1;
Fig. 3A shows the preferred embodiment of my disc launcher;
Fig. 3B shows a detail of the slot in the preferred embodiment of my disc launcher;
Figs. 4A and 4B show a top plan view and a side view of a typical disc respectively;
Figs. 5A and 5B show the operation of my disc launcher; Fig. 6 illustrates an exploded perspective view of the disc launcher incorporating a multi- loading chamber according to another embodiment of the present invention;
Fig. 7 illustrates a top plan view of the disc launcher shown in Fig. 6; Fig. 8 illustrates a cross-sectional view of the disc launcher taken along lines 8-8 in Fig. 7 with a disc loaded in a launching state;
Fig. 9 illustrates a cross-sectional view of the disc launcher taken along lines 8-8 in Fig. 7 with a disc in an unloaded non-launching stored state;
Fig. 10 illustrates a cross sectional view of the disc launcher shown in Fig. 8 taken along lines 10-10;
Fig. 11 illustrates a cross sectional view of the disc launcher shown in Fig. 9 taken along lines 11-11;
Fig. 12 illustrates a side view of the disc launcher shown in Fig. 6;
Fig. 13 illustrates a bottom plan view of the disc launcher shown in Fig. 6;
Fig. 14 illustrates the disc launcher of Fig. 6 showing multi-loading chamber in an open cut view;
Fig. 15 illustrates the basic operation of the disc launcher shown in Fig. 6;
Fig. 16 illustrates teeth on the inner surface of the outer minor wall of a disc launcher; and Fig. 17 illustrates an exploded view of the disc launcher in Fig. 2 in accordance with another embodiment of the present invention.
Detailed Description of the Preferred Embodiment
A basic version of my disc launcher in accordance with the invention is shown in Fig. 1 and Fig. 2. The disc launcher is constructed of pieces cut from approximately 1/8 inch thick rigid planar material such as chipboard or cardboard but not restricted to this material. Fig. 1 shows a handle 1 attached to a head 2 with a slot 3 in the head with a slot opening 4 and a slot opening 5. Head 2 is curved in a substantially semi-circular arc of approximately 180°. Head 2 has a proximal end adjacent handle 1 and a distal end adjacent the slot opening 5. Slot 3 runs the entire length of head 2, slot opening 4 being located at the end of the head nearest handle 1 and slot opening 5 being located at the other end of the head.
Slot 3 is created when, as indicated in Fig. 2, spacer 8a and spacer 8b are sandwiched between top-side piece 6 and bottom-side piece 7 and glued in place. Spacer 8a completes the structure of handle 1 and forms the outer curved wall of slot 3 and spacer 8b forms the inner curved wall of the slot. Spacers 8a and 8b are positioned approximately 5 cm apart.
Created by the assembly described above, slot 3 has a rectangular cross-sectional shape and measures roughly .35 cm on the minor walls by 5.0 cm on the major walls. The radius of the arc of the curved head is roughly 11.5 cm measured to the outside of the head. The disc launcher is typically 38.5 cm long including handle 1 and roughly 1.0 cm in thickness. Fig. 3a shows the preferred embodiment of my disc launcher in accordance with the invention in which case the disc launcher is made of molded rigid plastic formed in complementary halves which are glued together. Fig. 3a shows one of the halves. The spacers 8a and 8b used to create slot 3 in the basic version in Figs. 1 and 2 are formed in the mold as part of the complementary halves of the preferred embodiment and are thus eliminated as separate pieces. Additionally, slot 3 in Fig. 3a incorporates tracks 9 along the major walls of the slot and a series of troughs 10 recessed slightly below tracks 9 and set radially around the slot. A detail of the inner surfaces of slot 3 in the preferred embodiment is shown in Fig 3b. Tracks 9 and troughs 10 can be clearly seen in Fig 3b and slot opening 5 is shown at the rear of the detail. The curve of slot 3 as shown in Fig 3a has been straightened in Fig 3b to simplify the drawing. OPERATION Figs. 4a and 4b show a typical cardboard disc known commonly in paper trade journals as a milk cap or "pog" but is referred to as a disc herein. Fig. 4a shows a view of a disc from either identical top or bottom face. Fig. 4b shows a disc from an oblate view as it would be inserted into slot opening 4 (Fig. 5a) .
The manner of launching the above described disc with my disc launcher is to hold handle 1 in either the left hand or right hand as shown in Fig. 5b. The disc launcher is held approximately level and at the side of the body, slot openings 4 and 5 of head 2 facing forward. This body position is not shown. A disc is inserted into slot opening (Fig. 5a) . The disc launcher is held with the hand cocked 11 slightly back as shown in Fig 5b and then rapidly pivoted forward 12 by a snapping motion of the wrist. This snapping motion of the wrist generates centrifugal forces within the curve of the disc launcher, rolling the disc along the outer curved minor wall of slot 3. The disc accelerates as it travels through the slot and is launched-from slot opening 5 (Fig. 5a) as the user's hand reaches launch position 13 (Fig. 5b) .
In the preferred embodiment shown in Figs. 3a and 3b the disc travels as described above and is confined to the space between the major walls of slot 3 by tracks 9. Tracks 9 are set at just sufficient width as to facilitate passage of the appropriate disc but are wide enough apart so that common coins or other similar sized objects inserted into the launcher will not contact both tracks 9 on either major wall of slot 3, but will instead tend to catch in the recessed series of troughs 10 and thereupon not accelerate sufficiently for launching. The common coins would require shaking to dislodge.
Accordingly, the reader will see that the disc launcher of this invention will easily and effectively launch the described cardboard disc. Furthermore, the disc launcher has the further advantages in that it will not launch common coins; it has not moving, loose, or flexible parts and is therefore easy to assemble in a basic version or by mass-production methods in the preferred embodiment.
Additionally, its ejective force is determined by the user's physical strength as opposed to a triggering mechanism of some complex design so that the disc launcher's capacity for harm among small children is therefore reduced.
Note that many other variations for the disc launcher are possible within the spirit and scope of the invention. For example, the disc launcher can have two or more adjacent slots sandwiched into the head to simultaneously launch multiple discs. The size of the slot can be altered to accommodate a differently sized disc.
Referring to Fig. 6, a disc launcher 18 is shown incorporating means for supplying a disc to the launcher for launching the disc in accordance with another embodiment of the present invention. This means is hereinafter referred to as a multi- loading chamber 20. The multi-loading chamber 20 includes a cylindrical tube 22 attached to the head 2 near the proximal end thereof adjacent handle 1. The tube 22 is molded on the outside surface of head 1. The tube 22 has an opening 24 for receiving a plurality of discs 26 and a cavity (not shown in Fig. 6) in communication therewith for storing the discs 26. In this embodiment, note that the disc launcher has been molded to remove opening 4 for receiving a disc inserted by hand which exists in the embodiments shown in Fig. 1-5B. The multi-loading chamber 20 further includes a tension means which comprises a cylindrical stopper 30 and a rubber band 32. Cylindrical stopper 30 has a diameter in cross-section just slightly smaller than the diameter of tube 22. This allows stopper 30 to enter opening 24 and slide freely within the cavity of tube 22. The stopper 30 has a groove 34 on the top surface 38 thereof extending across the diameter thereof. Cylindrical tube 22 includes a ledge 36 on each side thereof (only one shown in Fig. 6) . As best shown in Fig. 12, rubberband 32 fits within groove 34 on top surface 38 of stopper 30 and wraps around ledges 36 in order to tension or bias the bottom surface 40 of stopper 30 against discs 26 stored in the tube 22. The discs 26 are thus generally tensioned against the opposing major wall of slot 3. This will be discussed in more detail below.
Referring to Figs. 7-14, multi-loading chamber 20 further includes a loading mechanism 50 for loading a disc in a launching position within slot 3. Loading mechanism 50 includes a shaft 52 positioned within an opening at the proximal end of the launcher 18. The shaft 52 includes a knob 54 at one end thereof and a guide 56 at the other end thereof. The knob 54 is appropriately shaped so that a child may easily grasp it with his/her thumb and forefinger.
As best seen in Figs. 11 and 13, the launcher 18 includes a linear opening 58 along the bottom thickened portion 60 thereof and a channel 62 in the rear thereof which communicates with the linear opening 58 and the opening in the rear of the launcher 18 for shaft 52. The channel 62 is shaped in the form of a "cross" as best seen in Fig. 11. The shaft 52 is shaped similarly to channel 62 and adapted to slide therethrough. Guide 56 extends through linear opening 58 in the launcher 18 along the bottom thickened portion 60 thereof.
As best seen Fig. 10, shaft 52 has a raised portion 64 substantially along the length thereof as one of the sides that defines its "cross" shape. The raised portion 64 communicates with the cavity of tube 22 to contact the bottom disc 72 as discussed below. The launcher 18 includes a brace 66 screwed to the thickened portion 60 of the launcher 18 at the proximal end thereof. The brace 66 is generally shaped in the form of a "U" having the open area facing the guide 56.
The brace 66 is positioned on the launcher 18 to permit the shaft 52 to move between two positions. In the first position, the shaft 52 is fully extended and the guide 56 is braced against brace 66. In the second position, the shaft 52 is fully inserted within the launcher 18, and guide 56 is braced against the edge defining the end of linear opening 60 farthest from brace 66.
As best seen in Figs. 8, 9 and 14, the raised portion 64 extends along the top length of shaft 52 but terminates, short of the end thereof, with wall 68, leaving a ledge 70 on shaft 52 adjacent guide 56.
In the second position, the top surface of the raised portion 64 acts as part of the surface of the major wall of the track (not shown in Figs. 6- 15) . Note that the disc launcher 18 in this embodiment includes the same track and troughs structure in the slot discussed above with respect to the preferred embodiment shown in Figs. 1-5B. As stated above, the discs 26 are biased within tube 22.
In the first position of the shaft 52 shown in Fig. 9, the wall 68 is aligned parallel to the wall of tube 22, positioned just outside thereof. Because tension is maintained on all of the discs within the cavity including disc 72 next to be launched, the bottom disc 72 remains flush against the (1) opposing major wall of the track in the slot 3 and the (2) ledge 70. In this position, the disc 72 is in an unlaunching state. In the second position as shown in Fig. 8, the disc is in an unbiased position within the slot 3 free for launching.
In operation, a child would grasp the knob 54 and pull the shaft into the first position so that the next disc in sequence may move into the slot 3. The child would then push the shaft 52 into channel 62. The wall 68 contacts the peripheral edge of the disc 72 and causes it to slide into the launching position in slot 3 shown in Fig. 8. The disc 72 may then be launched. The next disc in sequence in the cavity will then move down once the shaft 52 is pulled back to its extended position. Since the multi-loading chamber holds several discs this process may be repeated many times. Fig. 15 illustrates the basic operation of the disc launcher with the multi-loading chamber. Note that because tension is maintained on all discs by the biasing structure, i.e., the rubber band 32 and stopper 30, the launcher 18 may be operated by right handed as well as left handed children.
Fig. 16 illustrates a disc launcher 100 with means for improving the acceleration of the disc and the launching thereof as it travels through the slot 102. This means comprises teeth 104 which are aligned along the entire length of the outer minor wall 106 of the slot 102. The teeth 104 are triangular shaped portions, each extending across the width of the minor wall from major wall to major wall. In Fig. 16 the respective triangle portions are contiguous, i.e., there is no space between the base of adjacent triangular portions.
The teeth 104 improve the acceleration of the disc as it travels through the slot 102 by acting like friction, i.e., by preventing the disc from sliding along the inner surface of the outer minor wall 104 as a result of the centrifugal force placed upon the disc by the movement of the launcher 100 as described above.
Note that the teeth 104 are shown in a slot having a curved shape. However, the teeth 104 may be employed in a straight linear slot that will obtain the same result.
The teeth 104, i.e., triangular portions may also be spaced apart and raised as desired to obtain the same result described above. Note that different shaped portions, such as rectangular portions with spaces between respective rectangular portions, may be used instead of the triangular portions. However, the triangular portions achieve the best result.
Note that in Fig. 16 the trough structure described above is not shown but is employed.
Fig. 17 illustrates the basic version of the disc launcher shown in Fig. 2 including slits 110 along the outside minor wall 112 of the slot. The slits 110 are openings which allow the slot to communicate with the outside environment. The slits 110 are sized smaller than the size of the disc to allow an object such as a coin to release from launcher in the early stages of travel through the slot. The number of slits are not limited to two slits as shown, and are also not limited to the bottom half of the slot (closest to the handle) . The launcher 108 also includes holes 114 on the major walls of the slot. The holes 114 are openings that are also sized to permit objects such as coin to release as it travels through the slot but not large enough to impede the movement of the disc as it travels through the slot. In this embodiment, as can be seen from Fig. 17, the holes 114 have replaced the trough structure discussed above.
Paper 116 may be laminated to the outside surface of the major walls with flaps cut at the appropriate location above corresponding holes to permit the coins to release as described. The paper 116 may have graphics printed as desired. The embodiment shown in Fig. 17 may be made of rigid planar material such as clipboard as described for Fig. 2 but may also be made of cardboard or other material.
Although the present invention has been described with reference to the preferred and additional embodiments, it will be apparent to one skilled in the art that variations and modifications may be made within the spirit and scope of the invention, that the drawings and description of the preferred and other embodiments are made by way of example rather than to limit the scope of the invention, and it is intended to cover within the spirit and scope of the invention all such changes and modifications.

Claims

CLAIMS I claim:
1. A hand-held disc launching apparatus comprising a handle and a head having a proximal end and a distal end, said handle being attached adjacent to said proximal end of said head, said head having means for accelerating and launching a disc of a predetermined size, said means for accelerating and launching having a curved slot therein which runs through said head from said proximal end to said distal end, said slot being open on both ends and having a cross-sectional shape to receive the disc in said opening in said proximal end of said head, said slot being configured so that launching of said disc from said opening in said distal end of said head is accompanied by acceleration of said disc through said slot by centrifugal force caused by said apparatus being swung forward by said handle.
2. The apparatus of claim 1 wherein said apparatus is formed of pieces of predetermined size and shape cut from rigid planar material, said pieces being joined together with adhesive so as to create said accelerating and launching means.
3. The apparatus of claim 1 wherein said apparatus is formed of molded rigid plastic.
4. The apparatus of claim 1 wherein said means for accelerating and launching includes a first wall and a second opposite wall defining said slot and a pair of concentric semi-circular tracks of predetermined spacing on each wall of said slot.
5. The apparatus of claim 1 wherein said means for accelerating and launching includes means for preventing launching of an object smaller than said disc.
6. The apparatus of claim 5 wherein said means for preventing launching comprises a plurality of troughs, said troughs being recessed below said tracks, said troughs being aligned radially around the curve of said slot for impeding the acceleration of said object through said slot and for preventing launching of said object from said opening in said distal end of said head.
7. The apparatus of claim 1 wherein said head is curved in the shape of a substantially semi¬ circular arc of approximately 180°.
8. The apparatus of claim 7 wherein said slot has a predetermined rectangular cross-sectional shape.
9. The apparatus of claim 1 wherein said apparatus is formed of rigid planar material.
10. The apparatus of claim 5 wherein said means for accelerating and launching comprises first and second spaced walls defining said slot, each wall having a pair of tracks spaced apart and extending radially therealong.
11. The apparatus of claim 10 wherein said means for preventing launching comprises a trough extending below said tracks in said first wall and abutment means adjacent said trough for impeding the acceleration of and preventing the launching of said object from said opening in said distal end of said head.
12. A disc launching toy device comprising:
(a) a disc;
(b) means for launching said disc comprising:
(1) a handle portion configured to be grasped by a user;
(2) an arcuate portion connected with one end of said handle portion and extending laterally and curvingly away therefrom, said arcuate portion comprising a curved first wall portion and second and third spaced wall portions extending radially inward from said first wall portion, said first, second and third wall portions defining therebetween a space configured to receive said disc therein; said second wall portion having a trough therein adjacent said curved first portion and communicating with the space, said trough having a radial width less than the diameter of said disc, said trough receiving an object smaller than said disc when said object passes through said space in said arcuate portion, and said second wall portion having abutment means adjacent said trough for engaging said object and impeding the passage thereof through said space.
13. The apparatus of claim 12 wherein said arcuate portion having a radial inward wall covering the radial inward end of said space, said arcuate portion having a proximal and distal end and an opening in each of said ends communicating with said space, said proximal and distal openings being configured to permit the passage of the disc therethrough.
14. A disc launching toy device comprising:
(a) a handle:
(b) means engaging said handle for launching a disc comprising: an arcuate portion connected with one end of said handle portion and extending laterally and curvingly away therefrom, said arcuate portion comprising a curved first wall portion and second and third spaced wall portions extending radially inward from said first wall portion, said first. second and third wall portions defining therebetween a space configured to receive said disc therein, said arcuate portion having a radial inward wall portion covering the radial inward end of said space, said arcuate portion having a proximal and distal end and an opening in each of said ends communicating with said space, said proximal and distal openings being configured to permit the passage of said disc therethrough.
15. The apparatus of claim 14 wherein said second and third wall portions each have a pair of tracks spaced apart and extending therealong.
16. The apparatus of claim 15 wherein said means for launching comprises means for preventing launching of an object smaller than said disc.
17. The apparatus of claim 16 wherein said means for preventing comprises a trough adjacent said track and extending below said second wall portion and an abutment means adjacent said trough for engaging said object and impeding the passage thereof through said space.
18. An apparatus for launching a disc comprising:
(a) a handle;
(b) means engaging said handle for launching a disc; and
(c) means for supplying said disc to said means for launching, said means for supplying includes means for holding a plurality of discs, said means for launching comprises a slot extending substantially the length thereof and shaped to permit said disc to pass therethrough and an opening sized to permit said disc to move from said means for holding to said slot, said means for supplying further comprises means for tensioning said plurality of discs against a wall defining said slot.
19. The apparatus of claim 18 wherein said means for holding has a cavity for storing said plurality of discs.
20. The apparatus of claim 18 wherein said means for supplying further comprises means for moving a disc from a tensioned position within said slot to a freely moveable position within said slot for the launching thereof.
21. The apparatus of claim 20 wherein said means for moving includes means for sliding said disc from said tensioned position to said movable position.
22. The apparatus of claim 18 wherein said means for holding said plurality of discs is cylindrically shaped.
23. The apparatus of claim 21 wherein said means for sliding is a shaft adapted to slide within said means for launching.
24. The apparatus of claim 23 wherein said shaft comprises a first end for contacting said disc and a second end having a knob for grasping.
25. The apparatus of claim 24 wherein said first end of said shaft comprises a wall for causing said disc to slide from said tensioned position to said movable position.
26. The apparatus of claim 25 wherein said shaft defines a ledge for supporting said disc.
27. The apparatus of claim 18 wherein said means for holding has an opening communicating with said cavity to receive said discs.
28. The apparatus of claim 27 wherein said means for tensioning includes a stopper in said opening and against said plurality of discs and a rubber band for tensioning said stopper against said discs.
29. An apparatus for launching a disc comprising:
(a) a handle;
(b) means engaging said handle for launching a disc through an opening formed therein,
(c) means for holding a plurality of discs, said means for launching comprises a slot extending substantially the length thereof and shaped to permit said disc to pass therethrough and an opening sized to permit said disc to move from said means for holding to said slot, said means for launching said discs further comprises means for moving a disc from a tensioned position within said slot to a freely moveable position within said slot for the launching thereof.
30. The apparatus of claim 29 wherein said means for launching further comprises means for tensioning said plurality of discs against a wall defining said slot.
31. The apparatus of claim 30 wherein said means for holding has a cavity for storing said plurality of discs.
32. The apparatus of claim 29 wherein said means for moving includes means for sliding said disc from said tensioned position to said movable position.
33. The apparatus of claim 29 wherein said means for holding said plurality of discs is cylindrically shaped.
34. The apparatus of claim 32 wherein said means for sliding is a shaft adapted to slide within said means for launching.
35. The apparatus of claim 34 wherein said shaft comprises a first end for contacting said disc and a second end having a knob for grasping and moving said shaft.
36. The apparatus of claim 35 wherein said first end of said shaft comprises a wall for causing said disc to slide from said tensioned position to said movable position.
37. The apparatus of claim 36 wherein said shaft defines a ledge for supporting said disc.
38. An apparatus for launching a disc comprising:
(a) a handle;
(b) means engaging said handle for launching a disc, said means for launching comprises: a slot extending substantially the length thereof and shaped to permit said disc to travels therethrough; and means for improving the acceleration of said disc as it travels through said slot.
39. The apparatus of claim 38 wherein said means for launching further includes a wall defining said slot and engaging said means for improving said acceleration of said disc as it travels through said slot and along said wall.
40. The apparatus of claim 39 wherein means for improving said acceleration of said disc comprises a plurality of portions along the length of said wall.
41. The apparatus of claim 40 wherein adjacent portions of said plurality of portions are contiguous.
42. The apparatus of claim 40 wherein each of said plurality of portions extends the substantial width of said wall.
43. The apparatus of claim 40 wherein the plurality of portions extend along the entire length of the wall.
44. The apparatus of claim 40 wherein each of said plurality of portions are shaped in the form of a triangle.
45. The apparatus of claim 39 wherein said means for launching further includes means for preventing the launching of objects smaller than the size of said disc.
46. The apparatus of claim 45 wherein said mean for preventing includes means for releasing said objects from said launcher.
47. The apparatus of claim 46 wherein said means for releasing comprises a slit along said wall.
48. The apparatus of claim 47 wherein said means for launching further comprises a second wall and third wall extending away from said first wall, said first, second, and third walls defining said slot, said second wall having an opening for releasing objects smaller than said disc.
49. A disc launching toy apparatus comprising:
(a) a handle:
(b) means engaging said handle for launching a disc comprising: an arcuate portion connected with one end of said handle portion and extending laterally and curvingly away therefrom, said arcuate portion comprising a curved first wall portion and second and third spaced wall portions extending radially inward from said first wall portion, said first, second and third wall portions defining therebetween a space configured to receive said disc therein; and
(c) means for improving the acceleration and launching of said disc as it travels through said space.
50. The apparatus of claim 49 wherein said means for improving comprises a plurality of portions along said first wall portion.
51. The apparatus of claim 50 wherein each of said plurality of portions extends from said second wall portion to said third wall portion.
52. The apparatus of claim 51 wherein respective said plurality of portions are contiguous, along said first wall portion.
53. The apparatus of claim 50 wherein each of said plurality of portions are shaped in the form of a triangle.
54. The apparatus of claim 49 wherein said means for launching further comprising means for preventing the launching of objects smaller than said disc from said launcher.
55. The apparatus of claim 54 wherein said means for preventing includes means for releasing said objects from said launcher during disc travel.
56. The apparatus of claim 55 wherein said means for releasing comprises openings in said first wall portion.
57. The apparatus of claim 56 wherein said means for releasing further comprises openings in said second and third wall portions.
58. A disc launching toy device comprising: (a) a handle: (b) means engaging said handle for launching a disc comprising: an arcuate portion connected with one end of said handle portion and extending laterally and curvingly away therefrom, said arcuate portion comprising a curved first wall portion and second and third spaced wall portions extending radially inward from said first wall portion, said first, second and third wall portions defining therebetween a space configured to receive said disc therein, said arcuate portion having a radial inward wall portion covering the radial inward end of said space, said arcuate portion having a proximal and distal end and an opening in each of said ends communicating with said space, said proximal and distal openings being configured to permit the passage of said disc therethrough, said first wall portion including means for preventing an object from launching from said launcher that is smaller than the size of said disc.
59. The apparatus of claim 58 wherein said means for preventing comprises means for releasing said object from said launcher prior to launching.
60. The apparatus of claim 59 wherein said means for releasing comprises an opening in said first wall portion.
61. The apparatus of claim 60 wherein said opening is a slit.
62. The apparatus of claim 58 where said second and third wall portions each have an opening for releasing objects smaller than said disc.
PCT/US1995/003270 1994-03-25 1995-03-15 Improved disc launcher WO1995026490A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21207/95A AU2120795A (en) 1994-03-25 1995-03-15 Improved disc launcher

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US08/218,119 1994-03-25
US08/218,119 US5465704A (en) 1994-03-25 1994-03-25 Disc launcher
US08/386,411 US5579748A (en) 1994-03-25 1995-02-10 Disc launcher with multi-loading chamber
US08/386,411 1995-02-10
US40212395A 1995-03-10 1995-03-10
US08/402,123 1995-03-10

Publications (1)

Publication Number Publication Date
WO1995026490A1 true WO1995026490A1 (en) 1995-10-05

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Family Applications (1)

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WO (1) WO1995026490A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2057896A1 (en) * 2007-11-10 2009-05-13 David Frederick Simon Launcher and chase toy

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Publication number Priority date Publication date Assignee Title
US1607874A (en) * 1926-03-17 1926-11-23 Willard B Darton Hand trap for throwing clay pigeons
US2586547A (en) * 1948-10-15 1952-02-19 Leslie C Marley Hand trap
US4157828A (en) * 1977-09-01 1979-06-12 Stavros Cosmopulos Disc launching and catching device
US4548413A (en) * 1984-02-06 1985-10-22 David Chris A Game device
US4677961A (en) * 1985-11-12 1987-07-07 Allison James A Clay pigeon launcher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1607874A (en) * 1926-03-17 1926-11-23 Willard B Darton Hand trap for throwing clay pigeons
US2586547A (en) * 1948-10-15 1952-02-19 Leslie C Marley Hand trap
US4157828A (en) * 1977-09-01 1979-06-12 Stavros Cosmopulos Disc launching and catching device
US4548413A (en) * 1984-02-06 1985-10-22 David Chris A Game device
US4677961A (en) * 1985-11-12 1987-07-07 Allison James A Clay pigeon launcher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2057896A1 (en) * 2007-11-10 2009-05-13 David Frederick Simon Launcher and chase toy

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