WO1996014114A1

WO1996014114A1 - Collapsible ski

Info

Publication number: WO1996014114A1
Application number: PCT/SE1995/001310
Authority: WO
Inventors: John Kelly; Sten Magnusson
Original assignee: Ramsele Utvecklings Ab
Priority date: 1994-11-04
Filing date: 1995-11-06
Publication date: 1996-05-17
Also published as: SE506401C2; SE9403791D0; SE9403791L

Abstract

This invention relates to a ski, which is divisible into three units, a front one, an intermediate one, and a rear unit, which units are kept together by a locking device. According to the invention the ski is characterized in that the locking device comprises a strap (4) or the like, which is intended to move in a passage (5) inside of the ski, the entire intermediate unit (2) and at least a part of the front unit (1) and the rear unit (3) being intended to be gone through by the strap (4), and that the locking device further comprises a locking element (6), which cooperates with the strap (4), and by which the strap can be fastened on the top side of the ski.

Description

Collapsible ski.

This invention relates to a ski, which is divisible into three units, a front one, an intermediate one, and a rear unit, which units are kept together by a locking device.

By DE-"Offenlegungsschrift" 2.304.296 is previously known a ski which is divisible into three parts, a front part and a rear part and an intermediate connection piece. This ski has a complicated construction and therefore becomes expensive to manufacture.

This invention relates to a divisible ski which has a construction which is well adapted for its purpose, meaning that it is easy to dismount and to be folded up and also easy to mount together. Moreover, the ski has an uncomplicated construction, which makes it inexpensive to manufacture. These advantages are achieved by the fact that the ski mentioned by way of introduction is characterized in that the locking device comprises a strap or the like, which is intended to move in a passage inside the ski, the entire intermediate unit and at least a part of the front unit and the rear unit being intended to be gone through by the strap, and that the locking device further comprises a locking element, which cooperates with the strap, and by which the strap can be fastened on the top side of the ski. The new ski shall be described more closely below with reference to the accompa¬ nying drawings, where fig. 1 shows a plan view of the new ski in an assembled condition, fig. 2 shows a plan view of a divided ski, fig. 3 shows a view of the ski according to fig. 2, seen in the direction of the arrows III-III, fig. 4 shows a first embodiment of a locking element which is a part of the locking device, fig. 5 shows a section through the locking element according to fig. 4, taken along the line V-V, fig. 6 shows a second embodiment of a locking element being part of the locking device, fig. 7 shows a section through the locking element according to fig. 6, taken along the line VII- VII, fig. 8 shows a section along the line VIII- VIII in fig. 1, and fig. 9 shows a section along the line IX-IX in fig. 1.

Referring to the drawings is shown there a ski, which is divisible into three units, a front unit 1, an intermediate unit 2, where the ski binding is intended to be fastened, and a rear unit 3. The ski is according to a preferred embodiment made of plastics but could of course be made of another material, for instance metal and/or wood, alternatively a combination of these materials and plastics.

According to the invention the different units 1-3 are intended to be connected by a strap 4, which is intended to move in a passage 5 inside the ski. In this connection the entire or a part of respective unit 1-3 is intended to be passed by the strap 4. According to the shown and preferred embodiment the intermediate unit 2 is entirely passed by the strap, whereas the front 1 and the rear 3 unit only partially are passed by the strap. This strap is intended to cooperate with a locking element 6 for fastening the three units against each other. This locking element is intended to be arranged either on the front unit 1 or the rear unit 3.

In fig. 2 and 3 are more closely shown how two adjacent units, namely the front unit 1 and the intermediate unit 2 are designed in order to get a good contact against each other. Thus, the intermediate unit 2 has a wedgelike front part 7 which is bevelled at its edge portions 8. This front part 7 is intended to match a corresponding recess 9 in the rear part 10 of the front unit 1. Furthermore, the rear part 10 is provided with grooves, which are made in that way that the edge portions 8 of the intermediate unit 2 shall be able to project into these grooves for a secure contact. In order further to secure that the two units 1, 2 are fixed to each other when the strap 4 is tightened, the rearmost portions 11, 12 of the front unit 1 are directed backwards, whereas the portions 13, 14 of the intermediate unit which are intended to be in contact with the portions 11, 12 are directed forwards. Due to that fact the result will be an extremely good fixation of the units to each other. In fig. 4, 5 is shown a first embodiment of the locking element 6. This locking element comprises a clamping yoke 15 which has two ends 16, 17. The two ends are intended to cooperate with locking shoulders arranged on the ski. Thus, the one end 16 of the clamping yoke 15 cooperates with a locking shoulder 18 which can be moved in the longitudinal direction of the ski, whereas the other end 17 of the clamping yoke 15 is intended to cooperate with a plurality of transverse locking shoulders 19-22, which are stationarily arranged on the ski at a distance from each other in the longitudinal direction of the ski.

As is apparent from fig. 2 the strap 4 is intended to extend through the passage 5 and up through the opening 23 on the topside of the ski and further on the flat topside of the clamping yoke 15, round its one end 16 and back on the underside towards its other end 17, where the strap is fastened on the underside of the clamping yoke by a means 24.

When clamping the different units 1-3 of the ski against each other, the clamping yoke 15 is grasped and its other end 17 is placed against that one of the stationarily arranged lockings shoulders 19-22 which has the best position. Thereafter, the first end 16 of the clamping yoke 5 is fixed by means of the moveable locking shoulder 18.

In fig. 6, 7 is shown a second embodiment of the locking element 6, which comprises a clamping device for bands, known in the market. This one comprises a cylinder 26 provided with a center slot 25, into which that end of the strap 4 which is drawn up to the top side of the ski is intended to be put in, whereafter the clamping itself can be made by pivoting the band clamping handle 27 about 180" .

As has been mentioned previously the locking device can be arranged either on the front unit 1 of the ski or on its rear unit 3, the strap 4 in these cases being taken up through an opening on the top side of the ski. Of course, it could be possible to have the strap move in a passage going through the entire rear unit 3. In such a case the strap 4 should be taken out at the very back part of the ski,^' the locking device according to fig. 4, 5 being able to be the most suitable one to utilize.

In fig. 8 is shown a section through the ski, taken at the front unit or the rear unit 1, 3, which comprises a top part 28 and a lower part 29, which are fastened to each other by glueing. Between the top and the lower parts is created at the mid portion of the section a first space 30, which forms the passage for the strap 4. On each side of the mid portion of the section there are two other spaces 31, 32, which can be used for reception of metal strips, which are suitable to have as a reinforcement of the unit at the area of the locking device. In fig. 9 is shown a section through the intermediate unit 2 of the ski. Also this unit is made of two parts, a top part 33 and a lower part 34. As has been mentioned previously the ski binding is intended to be fastened on this unit. For this reason also this unit is reinforced with inserted metal rods 35, 36. The top and the lower parts 33, 34 are arranged in that way to each other that the high position of the band passage 37 through the intermediate unit varies, whereby the band clamping can increase the arching of the ski.

In order that the top and the lower parts of respective unit shall be kept together better after fastenting the same to each other by glueing, the one part is provided with male means 38, which are intended to cooperate with female means on the other part.

As has been mentioned previously the ski is preferably made of a plastic material. In this connection the manufacture of the top and the lower parts of the front unit 1 , the intermediate unit 2 and the rear unit 3 are made by pressing. Before the top and the lower parts of each unit are glued together, the strap and the potential metal rods are inserted in the intended way. Thereafter the locking device is mounted on the front or the rear unit, whereafter the strap is mounted on the locking device. Thus, in this position the different units can be locked to each other by means of the locking device.

The strap is made of known materials and could also comprise a wire.

The invention is of course not limited to the shown and mentioned embodiment but can be modified within the scope of the following claims.

Claims

1. A ski, which is divisible into three units, a front one, an intermediate one and a rear unit, which units are kept together by a locking device characterized in that the locking device comprises a strap (4) or the like, which is intended to move in a passage (5) inside the ski, whereas the entire intermediate unit and the unit (2) and at least a part of the front unit (1) and the rear unit (3) being intended to be gone through by the strap (4), and that the locking device further comprises a locking element (6), which cooperates with the strap (4) and by which the strap can be fastened on the top side ot the ski.

2. A ski according to claim 1, characterized in that two adjacent units (1, 2; 2, 3) have such a design that the unit (2, 3) being behind has a wedgelike front part

(7), which is intended to match a corresponding recess (9) of the rear part (10) of the unit (1,2) being in front of the other one.

3. A ski according to claim lor2, characterized in that the locking element (6) comprises a clamping yoke (15), which is intended to cooperate with the strap (4) and which is provided with two ends (16, 17), the one end (16) being intended to cooperate with the first locking shoulder (18), which is displacably arranged on the ski in its longitudinal direction, and the other end (17) being intended to cooperate with a second locking shoulder (19-22), being in a group of locking shoulders, which are arranged on the ski at a distance from each other in the longitudinal direction of the ski.

4. A ski according to claim lor2, characterized in that the strap (4) is intended to be drawn up through an opening (23) on the top side of the foremost or the rearmost ski unit (1, 3) and to cooperate with a locking element (6) which comprises a cylinder (26) provided with a center slot (25), which is intended to be turned by a band clamping handle (27).

5. A ski according to claim 4, characterized in that each unit (1-3) comprises a top part (28; 33) and a lower part (29; 34), which are arranged in that way to each other that a central, first space (30; 37) for the band (4) is created between the parts, and that the one part (28; 33) has male means (38), which are intended to cooperate with female means (39), which are arranged on the other part (29; 34).

6. A ski according to claim 5, characterized in that on each side of the first space (30) of the foremost and the rearmost unit (1,3) there is arranged another space (31, 32), which spaces are intended to be able to receive reinforcement rods.

7. A ski according to claim 5 or 6, character i zed in that the intermediate unit (2), which is intended to receive the ski binding has metal rods (35, 36), inserted into the unit, to which rods the ski bindning is intended to be fastened.

8. A ski according to anyone of the preceding claims, characterized in that it is made of plastic, metal and/or wood.