US20100275484A1 - Rail mounted recoil system for the forend of a firearm - Google Patents
Rail mounted recoil system for the forend of a firearm Download PDFInfo
- Publication number
- US20100275484A1 US20100275484A1 US12/263,674 US26367408A US2010275484A1 US 20100275484 A1 US20100275484 A1 US 20100275484A1 US 26367408 A US26367408 A US 26367408A US 2010275484 A1 US2010275484 A1 US 2010275484A1
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- United States
- Prior art keywords
- recoil reduction
- recoil
- reduction system
- rail
- handgrip
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- Legal status (The legal status 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 status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
- F41A25/10—Spring-operated systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C23/00—Butts; Butt plates; Stocks
- F41C23/06—Stocks or firearm frames specially adapted for recoil reduction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C23/00—Butts; Butt plates; Stocks
- F41C23/16—Forestocks; Handgrips; Hand guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G11/00—Details of sighting or aiming apparatus; Accessories
- F41G11/001—Means for mounting tubular or beam shaped sighting or aiming devices on firearms
- F41G11/003—Mountings with a dove tail element, e.g. "Picatinny rail systems"
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
- This application is a continuation-in-part application of co-pending U.S. patent application Ser. No. 12/008,558, filed Jan. 11, 2008 entitled “Recoil System,” which is a continuation-in-part of U.S. patent application Ser. No. 11/132,872, filed May 19, 2005, now U.S. Pat. No. 7,340,857 entitled “Recoil System For The Forend Of A Firearm,” both of which are incorporated herein in their entireties by reference.
- The invention relates to firearms and more specifically to a recoil system for rifles and shotguns. One age-old problem that has existed with firearms is the fact that many of them have severe recoil that affects the person firing the weapon. In firearms such as shotguns and rifles, the rear end of the butt stock is positioned against the shooter's shoulder. When discharged, the recoil from the discharge applies a centrifugal force to the firearm, often causing the shooter to raise the front. Also, recoil varies depending upon the amount of explosive being fired and the recoil can result in pain and/or bruising to the shoulder area of the person firing the weapon. One example of the recoil being detrimental to a shooter's accuracy is where the firearm is a shotgun being used for skeet shooting by a male or a female.
- In the past, the best prior art recoil systems for the butt stock of a firearm have been very expensive and the inexpensive systems did not function properly. Two examples of expensive systems are a hydro-coil fluid dampening system and a pneumatic air chamber system. The present inexpensive recoil systems utilize compression coil springs to absorb the recoil forces. If the compression coil spring is a little too strong, you get more recoil than with a regular firearm. If the compression coil spring is not strong enough it is worse, in that it gives the gun some travel and it is the same as holding the butt stock too loosely.
- One improvement in recoil systems for a firearm is illustrated in the Bentley et al U.S. Pat. No. 5,722,195. It has a pistol grip recoil assembly having a recoil base member and a pistol grip. The recoil base member is detachably secured to the rear end of the receiver of the firearm and it has an inverted T-shaped rail formed on its bottom wall. This inverted T-shaped rail is captured within and slides in an inverted T-shaped groove in the top end of the pistol grip. A recess formed in the front wall of the pistol grip adjacent its top end allows the trigger guard of the firearm to travel rearwardly with respect to the pistol grip when the firearm is fired. Various embodiments utilize springs to return the recoil base member forwardly to its static position after dissipating the recoil of the firearm resulting from its being fired.
- Another recent improved recoil system for a firearm is illustrated in the Bentley et al U.S. Pat. No. 5,752,339. This patent discloses a recoil system for the butt stock of a firearm having a recoil suppressor assembly whose front end is mounted in the cavity in the rear end of the gun stock. The piston ram of the recoil suppressor assembly in its static position extends rearwardly into a bore hole cavity of a elongated recoil housing. When the firearm is shot, the elongated body portion of the recoil suppressor assembly and its transversely extending mounting flange portion instantaneously travel rearwardly into the bore cavity with the bore hole of the body housing reciprocally traveling over the piston ram. A coil spring whose front end is secured to the front end of the body portion whose rear end is secured to a cam assembly returns the elongated body portion to a static position once the recoil of the firearm has been suppressed.
- Previous recoil systems have had success, but also have some inherent drawbacks. For example, many firearms have various mechanisms located in the stock, such as a bolt return spring, that precludes the use of a recoil system located in the stock. Further, many traditional recoil systems are too large to be used within the forend of a firearm that does not employ the use of “Kelly” or pistol grips.
- Additionally, previous recoil systems are generally difficult to attach to an existing firearm. Many such recoil systems use permanent or semi-permanent connecting means that require disassembling the firearm, drilling openings, and/or installing screws or bolts into the firearm to attach the recoil system, making the quick attachment or removal of a recoil system difficult at best. Further, past recoil systems have generally been designed to be used with specific firearms or with firearms that fit within specific parameters and have not been available to be used universally, with any firearm
- It would be beneficial to provide recoil reduction system that is quickly attachable and detachable. It would also be beneficial to provide a recoil reduction system that can be used with any firearm.
- The present invention is directed to overcoming, or at least reducing the effects of one or more of the issues set forth above.
- One embodiment of the invention is a recoil reduction system comprising a handgrip member having a top end, bottom end and a chamber that extends within the handgrip member, wherein a track is formed in the top end of the handgrip member. A sliding member may be slidably connected to the track and a mounting means may be connected to the sliding member. The mounting means may be configured to connect to a firearm. A recoil reduction means may be mounted within the chamber and may be configured to oppose sliding by the sliding member.
- The sliding member may be a rail. The mounting means may be configured to connect to a picatinny rail, a weaver rail, or a universal rail. The recoil reduction system may be connected to a firearm. The recoil reduction system may comprise at least one accessory mount which may connect to an accessory, such as a light, sight, scope, laser sight, or bipod. The recoil reduction means may comprise a torsion spring connected to a cam. The torsion spring and the cam may pivot about the same axis. The recoil reduction means may have substantially no linear rebound.
- Another embodiment of the invention is a recoil reduction means comprising a lever having a first end, a middle, and a second end, a pivot pin pivotally securing the lever to a recoil reduction means housing, a spring connected to the lever, and a sliding member that may be configured to be slidably connected to a forend. The lever and spring may be configured to oppose sliding by the sliding member in at least one direction, and the first end of the lever may be configured to interface with a surface of the sliding member.
- The lever may comprise a cam, and the spring may comprise a torsion spring. The recoil reduction means housing may comprise a handgrip member, having a top end. A track may be formed in the top end. The recoil reduction means may be mounted in a chamber that extends within the handgrip member, and the sliding member may be slidably connected to the track. The sliding member may be configured to connect to a forend via a mounting means. The mounting means may be configured to connect to a picatinny rail, a weaver rail, or a universal rail. The recoil reduction means housing may comprise a forend with a recess formed therein, and the recoil reduction means may be mounted within the recess of the forend. The spring may comprise a coil spring, a threaded rod surrounded by a coil spring held in place by a nut, a leaf spring, an elastomer block, or a torsion spring.
- Another embodiment of the invention is a recoil reduction system, comprising an elongated forend portion having a front end, a rear end, a left side wall, a right side wall and a bottom wall. A recoil reduction means may be attached to the forend and may further comprise a longitudinally extending picatinny rail extending downwardly from the bottom surface of the forend portion. The embodiment may further comprise an upright oriented handgrip having a top end, a bottom end, a front end, and a primary chamber that extends upwardly. A track may be formed in the top end of the handgrip; and the recoil reduction means may be mounted in the primary chamber of the handgrip. A rail may be slidably received in the track and a mounting means may be connected to the rail and the picatinny rail.
- The recoil reduction system may further comprising a firearm which may comprise a receiver having a front end and a rear end, an elongated gun barrel having a front end and a rear end. The rear end of the gun barrel may be connected to the front end of the receiver. The recoil reduction system may further comprise an elongated magazine for shells, having a front end and a rear end which may be connected to the front end of the receiver.
- These and other embodiments of the present application will be discussed more fully in the description. The features, functions, and advantages can be achieved independently in various embodiments of the claimed invention, or may be combined in yet other embodiments.
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FIG. 1 is a side elevation view of a shotgun illustrating the recoil reduction system mounted in a handgrip member secured to the bottom of the forend; -
FIG. 2 is an enlarged side elevation view of a forend having the recoil reduction system mounted in the handgrip member; -
FIG. 3 is a top plan view of the forend illustrated inFIG. 2 ; -
FIG. 4 is a rear elevation view ofFIG. 2 ; -
FIG. 5 is a front elevation view ofFIG. 2 ; -
FIG. 6 is a vertical cross section view illustrating a first embodiment of the recoil reduction system mounted in the handgrip member; -
FIG. 7 is a vertical cross section view illustrating a second embodiment of the recoil reduction system mounted in the handgrip member; -
FIG. 8 is a vertical cross section view illustrating a third embodiment of the recoil reduction system mounted in the handgrip member; -
FIG. 9 is a vertical cross section view illustrating a fourth embodiment of the recoil reduction system mounted in the handgrip member; -
FIG. 10 is a side elevation view of a shotgun illustrating the recoil reduction system mounted within the interior of the forend member; -
FIG. 11 is a top plan view of the forend member illustrated inFIG. 10 ; -
FIG. 12 is a right side elevation view of the forend member illustrated inFIG. 10 ; -
FIG. 13 is a cross sectional view taken along lines 13-13 ofFIG. 12 ; -
FIG. 14 is a side elevation view of the support unit for the recoil reduction structure received in the forend illustrated inFIGS. 11-13 ; -
FIG. 15 is a front elevation view of the support unit illustrated inFIG. 14 ; -
FIG. 16 is a rear elevation view of the support unit illustrated inFIG. 14 ; -
FIG. 17 is a bottom plan view of the support unit illustrated inFIG. 14 ; -
FIG. 18 is an enlarged view ofFIG. 2 with portions of the handgrip member illustrated in cross section; -
FIG. 19 is a front elevation view ofFIG. 18 with portions shown in cross section; -
FIG. 20 is a side elevation view of a rifle having the recoil reduction system positioned forwardly of the receiver in the bottom of the long gun stock; -
FIG. 21 is a partial bottom plan view ofFIG. 20 ; -
FIG. 22 is a top plan view of the cover member; -
FIG. 23 is a side elevation of the cover member; -
FIG. 24 is a front elevation view of the cover member; -
FIG. 25 is a side elevation view of an alternative embodiment of the cover member having a retractable handgrip member secured to its bottom surface; -
FIG. 26 is a side elevation view of the alternative cover member showing the handgrip member in its retracted position; -
FIG. 27 is a side elevation view illustrating a flashlight and a laser light mounted on the front end of a handgrip member; -
FIG. 28 is a vertical cross section view illustrating an embodiment of the recoil reduction system mounted in the handgrip member, and having a rail mount receiver connected to the top end of the handgrip member; -
FIG. 29 is an exploded perspective view of a firearm connected to a recoil reduction system with a rail mount; -
FIG. 30 is a vertical cross section view illustrating an embodiment of the recoil reduction system with a cam and torsion spring, mounted in a handgrip member; -
FIG. 31 is a perspective view illustrating an embodiment of a cam that can be used with a torsion spring; -
FIGS. 32A-32D show a number of views illustrating an embodiment of a torsion spring that may be used in a recoil reduction system; -
FIG. 33 is a vertical cross section view illustrating an embodiment of a forend, with a recoil reduction system mounted within a recess; and -
FIG. 34 is a vertical cross section view illustrating an embodiment of a forend, with a recoil reduction system mounted within a recess, during a recoil event. - Like reference numbers and designations in the various drawings indicate like elements.
- In the following description, reference is made to the accompanying drawings that form a part thereof, and in which is shown by way of illustration specific exemplary embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that modifications to the various disclosed embodiments may be made, and other embodiments may be utilized, without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense.
- The novel recoil reduction system for a firearm will now be described by referring to
FIGS. 1-9 and 18-19. Ashotgun 30 is illustrated inFIG. 1 having abutt stock 31, areceiver 32, agun barrel 33, amagazine 34, aforend 35 and ahandgrip member 36. The recoil reduction system is mounted withinhandgrip member 36. -
FIGS. 1-6 and 18-19 illustrate views of theforend 35 from various sides and angles.FIG. 4 is a rear elevation view and it shows thatforend 35 has a generally U-shaped transverse profile with aring 38 formed at its front end.Ring 38 has abore hole 39 that would telescope overmagazine 34, as shown inFIG. 1 . The remainder offorend 35 has aleft side wall 40, aright side wall 41 and abottom wall 42. A plurality ofscrews 44 secure an inverted T-shapedrail 46 to the bottom surface offorend 35.Handgrip member 36 has a longitudinally extending inverted T-shapedtrack 48 along which rail 46 reciprocally travels.Track 48 has a chamber 49 (shown inFIG. 6 ) formed in its rear end that receives anelastomer block 51 having a cylindrical shape.Track 48 andchamber 49 are formed intrack housing 52 that extends rearwardly from the top end ofhandgrip member 36. As shown inFIG. 6 , acavity 53 is formed in the bottom surface ofrail 46. Aprimary chamber 54 extends upwardly through almost all of the height ofhandgrip member 36. Alever 56 is pivotally mounted inprimary chamber 54 by apivot pin 57. Acam roller 58 is mounted on the top end oflever 56 by apin 59. A retainer ring 61 is mounted on the bottom end oflever 56 by apin 62. Acoil spring 63 has itstop hook member 64 captured in retainer 61.Coil spring 63 has abottom hook member 65 captured by therigid pin 66. -
Forend 35 is rigidly secured to themagazine 34 or other structure that is rigidly secured toreceiver 32. When the shotgun is fired, aforend 35 recoils rearwardly causingrail 46 to also travel in the same direction. Theelastomer block 51 is compressed to reduce some of the recoil.Cam roller 58 is pivoted rearwardly aboutpivot pin 57 causingcoil spring 63 to be stretched and then returned to its static position and this also provides recoil reduction. - A first variation of the recoil reducing structure in the
handgrip member 36 is illustrated inFIG. 7 . Arod 68 has its bottom end connected to plate 69 and its top end is pivoted onpin 62. An elastomer tube 72 is telescoped overrod 68 and its top end bears againstpins rail 46 will pivotlever 56 rearwardly causing elastomer tube 72 to be compressed and reduce recoil. - A second alternative recoil reducing structure is illustrated in
FIG. 8 . It has aleaf spring 73 having a stressed curvature in its static state. Its top end is captured byattachment structure 74 on the bottom end oflever 56 and its bottom end is captured inslot 75 in the inner wall ofhandgrip member 36. Rearward travel ofrail 46 will compresselastomer block 51 causing recoil reduction. Likewisespring 73 will be stretched upwardly whenlever 56 is rotated rearwardly. This also reduces the recoil force. - A third alternative recoil structure is illustrated in
FIG. 9 . It has acoil spring 77 inrail chamber 49. Ascrew 79 has its top end captured bypin 62. A coil spring 80 surroundsscrew 79 and has anut 81 on its bottom end.Pins rail 46 travels rearwardly,coil spring 77 reduces the recoil force. Also aslever 56 has its top end pivoted rearwardly, spring 80 would be compressed to also reduce recoil force. - In
FIGS. 10-17 , the recoil reduction system is mounted insideforend 85.Forend 85 has ahandrest stop 86 extending downwardly from its forward end to prevent the shooter's hand from slipping off the forend.FIGS. 11-13 illustrate different views of theforend 85. As shown inFIG. 13 ,forend 85 is generally U-shaped throughout most of its length. It has aleft side wall 86, aright side wall 82, atop wall 88, and abottom wall 89. A portion offorend 85 has a connectingwall member 91 at its top end and abore hole 93 is formed for telescopically receiving the magazine 34 (shown inFIG. 10 ).Finger grooves 92 are formed along the outside surface of the respective left and right side walls.Forend 85 has aninterior cavity 94 having outwardly extendingtracks 95 adjacent its bottom end. - The structure for mounting the recoil reduction system is illustrated in
FIGS. 14-17 , and is generally identified assupport unit 97.Support unit 97 is a solid piece of material that is telescopically received in cavity 94 (shown inFIG. 13 ) offorend 85 as shown inFIG. 10 .Support unit 97 has atop wall 98, a left side wall 99, aright side wall 100, abottom wall 101 andrails 103 extend outwardly from the respective side walls adjacentbottom wall 101. Abore hole 104 extends the length ofsupport unit 97 so that it telescopes overmagazine 34 as shown inFIG. 10 .Grooves 105 extend inwardly intorails 103 and these grooves receive set screws 106 (shown inFIGS. 11 and 12 ) extending inwardly from the side walls offorend 85.Bottom wall 101 is best seen inFIG. 17 . As shown inFIG. 17 , it has atongue 107 extending from its front end. Anouter cavity 108 is formed inbottom wall 101 for receiving part of the hardware of the recoil reduction system. A seconddeeper cavity 109 accommodates the bottom portion ofcoil spring 110. One end ofcoil spring 110 is secured to apin 112 and the other end is secured to aretainer member 113 whose free end is secured to one end oflever 115.Lever 115 is secured totongue 107 by apivot pin 116. Acam roller 118 is supported by a pin on the other end oflever 115. Attachment screws 120secure support unit 97. Assupport unit 97 travels rearwardly,cam roller 118 engages pin 121 (shown inFIG. 12 ) extending into the side wall offorend 85. It engagescam roller 118 causing it to rotate aboutpivot pin 116 causingspring 110 to be stretched and reduce recoil. InFIGS. 20-24 , the recoil reduction system is mounted in arifle 123. As shown inFIG. 20 ,rifle 123 has a recoil suppressionbutt stock assembly 125, areceiver 126, agun barrel 127 and along gun stock 128. For the embodiment to be discussed,long gun stock 128 would have a removablefront piece 130. It is to be understood that a singlelong gun stock 128 could also haveprimary recess 132 integrally formed in a single long gun stock. In the illustrated embodiment, stock cover 134 (not shown) can only be installed by removingfront piece 130.Long gun stock 128 has three identifiable portions,butt stock portion 136,middle portion 137 andfront portion 138.Front portion 138 is located forward ofreceiver 128.Primary recess 132 has abottom wall 140.Bottom wall 140 hasrails 142 extending along its lateral edges and above it are formed an inwardly extending track 144 (not shown). Arecess 146 is formed inbottom wall 140 andlever 147 is mounted on apivot pin 148 therein. Acam roller 149 is pivotally secured to one end oflever 147. Aretainer member 150 is secured to the other end of 147 and it captures one end ofspring 152. The other end ofspring 152 is captured by apin 153. The top portion ofspring 152 extends into adeeper recess 155. - As shown in
FIG. 22 , acover member 160 has afront end 161, arear end 162, aleft side wall 163 and aright side wall 164. Finger grips 166 (shown inFIG. 23 ) are formed in both of theside walls Cover member 160 has a bottom wall 170 (shown inFIG. 23 ) having abore hole 172 therein.Tracks 174 are formed on the inner side wall surfaces and they telescopically receive rails 142 (shown inFIG. 21 ). A screw 176 (shown inFIG. 24 ) extends upwardly through bore hole 172 (show inFIG. 23 ) and is threaded into the bottom end of atapered nut 178. Oncecover 160 is slid ontorails 142,screw 176 is tightened which causestapered nut 178 to push upwardly until it contacts cam roller 149 (shown inFIG. 21 ) and preloadsspring 152. The length ofcover member 160 is about 1 inch short of the length ofprimary recess 132. When the rifle is fired,long gun stock 128 will travel rearwardly whilecover member 160 is held stationary by the forward hand of the person holding the rifle.Cam roller 149 will contact taperednut 178 causinglever 147 to pivot forwardly causingspring 152 to be stretched thereby reducing the recoil force. - In
FIGS. 25 and 26 ,cover member 160 is illustrated as having ahandgrip member 190 with its top end pivotally secured to hingeassembly 192.Handgrip member 190 rotates aroundpivot pin 196 to its retracted position. When handgripmember 190 is in its down position, boreholes locking pin 197. -
FIG. 27 is a side elevation view illustrating a flashlight and a laser light mounted on the front end of a handgrip member. -
FIG. 28 is a side view of a recoil reduction system, in accord with one embodiment of the current disclosure. The recoil reduction system comprises ahandgrip member 236, atrack 248 formed in the top end of thehandgrip member 236, achamber 254 extending within thehandgrip member 236, and a recoil reduction means mounted within thechamber 254. The recoil reduction system may further comprise arail 246 slidably connected to thetrack 248 of thehandgrip member 236. The recoil reduction means may be configured such that rearward travel by therail 246 is opposed. It is conceived that therail 246 may be combined with a traditional member of a firearm, such as a forend. - As shown in
FIG. 28 , acavity 253 is formed in the bottom surface of therail 246. Theprimary chamber 254 extends upwardly through thehandgrip member 236. Alever 256 is pivotally mounted in theprimary chamber 254 by apivot pin 257. Acam roller 258 is mounted on the top end of thelever 256 by apin 259. Aretainer ring 261 is mounted on the bottom end of thelever 256 by apin 262. Acoil spring 263 has atop hook member 264 captured in theretainer ring 261. Thecoil spring 263 has abottom hook member 265 captured by arigid pin 266. - The recoil reduction system may also comprise a mounting means. The mounting means may comprise a member, such as a
rail mount receiver 247, as shown inFIG. 28 . The mounting means may be configured to connect to a rail mount 245 (shown inFIG. 29 ), such as a picatinny rail, weaver rail, or universal rail. For example, therail mount receiver 247 can slidably receive arail mount 245. Therail mount receiver 247 may have a plurality ofopenings 243 on the side walls of therail mount receiver 247 and may be secured to therail mount 245 by one or morerigid pins 244 inserted into theopenings 243, as shown inFIG. 29 . Thepins 244 may be sized and positioned such that, when inserted, they substantially fill the slots of therail mount 245 and are in contact with both side walls of therail mount receiver 247, substantially securing therail mount receiver 247 to therail mount 245. Other mounting means, such as a “rail grabber”, would be apparent to one of ordinary skill in the art given the benefit of this disclosure. - Some embodiments of a recoil reduction system may further comprise one or more accessory mounts 237, as shown in
FIG. 29 . Theaccessory mount 237 may be a rail mount such as a picatinny rail, a weaver rail, or a universal rail. AnAccessory 201, such a light or an aiming device, may be mounted to the recoil reduction system through anaccessory mount 237. Mounting anaccessory 201 advantageously allows it to gain the benefits of recoil reduction. For example, filament lights have long been used with firearms to illuminate the area in which the gun is aimed. Filament lights are problematic though, as they are often fragile and can be damaged by recoil when connected to a firearm. However, when a filament light is attached to a firearm through anaccessory mount 237 of a recoil reduction system, the light may experience less recoil and therefore may be less likely to be damaged. Further, reduced recoil may allow for greater marksmanship, as recoil may inhibit aim, for example, when multiple accurate discharges are desired. Increased accuracy due to the addition of a recoil reduction system may be particularly apparent when used in conjunction with anaccessory 201 that is intended to increase accuracy, such as a sight, scope, bipod, or laser sight.Other accessories 201 that would benefit from use with a recoil reduction system would be apparent to one of ordinary skill in the art given the benefit of this disclosure. -
FIG. 29 is a perspective exploded view of one embodiment of a recoil reduction system as it may be connected to theforend 285 of afirearm 230, such as a shotgun or rifle. The recoil reduction system comprises a recoil reduction means mounted within ahandgrip member 236. The mounting means of the recoil reduction system may be further connected to afirearm 230 connecting means. For example, arail mount receiver 247 and arail mount 245 set may be used for the connection. The rail mount may be a picatinny rail, weaver rail, or universal rail. In the embodiment illustrated inFIG. 29 , thehandgrip member 236 further comprises twoaccessory mounts 237, such as rail mounts, and has anaccessory 201, such as a light, connected to one of the accessory mounts 237. Theaccessory 201 may be connected to theaccessory mount 237 with a complementary attachment member, such as a rail mount receiver or a rail grabber. -
FIG. 30 is a cut away side view illustrating one embodiment of a recoil reduction system comprising a recoil reduction means connected to ahandgrip member 336. The recoil reduction means shown inFIG. 30 comprises acam 356 pivotally mounted in achamber 354 of thehandgrip member 336 by apivot pin 357. Thehandgrip member 336 may further comprise atrack 348 formed in the top end of thehandgrip member 336 and arail 346 slidably connected to thetrack 348. - The recoil reduction means illustrated by
FIG. 30 further comprises atorsion spring 370. As shown inFIGS. 32A-32D , thetorsion spring 370 may have anopen end 371 and aclosed end 372. Thetorsion spring 370 may be formed from a single rod of material which may be shaped into twocoils 373, with a U-shaped joint in between creating theclosed end 372. Thecoils 373 may be positioned such that the open centers of thecoils 373 are parallel to and aligned with each other, as shown inFIGS. 32 b, 32 c, and 32 d. Other torsion spring configurations, such as a single coil torsion spring, would be apparent to one of ordinary skill in the art, given the benefit of this disclosure. - Referring again to
FIG. 30 , thetorsion spring 370 may be connected to thecam 356 by thepivot pin 357 and theclosed end 372 of thetorsion spring 370 which may be in contact with and captured by a portion of thecam 356. The open end 371 (as best shown inFIG. 32A ) of thetorsion spring 370 may be captured by arigid pin 366. In this configuration, the torsion spring may move in the same arc as thecam 356, eliminating or reducing the rebound inherent in systems with traditional spring systems. For example, because thetorsion spring 370 pivots about the same axis as thecam 356, all of the recoil energy that is stored in thetorsion spring 370 can be used to move a connected firearm back into its pre-discharge position. Conversely, a traditional spring system may oscillate during and after a discharge, changing the direction of the recoil energy rather than absorbing it. This oscillation may introduce another unwanted movement into the firearm, necessitating the use of a dampening means to absorb the energy stored in the spring system, increasing the cost and complexity of the system. - In some embodiments, the
cam 356 may be shaped to better conform to thetorsion spring 370, as shown inFIG. 31 . For example, thecam 356 may include aprofile 355 adapted to engage the torsion spring. Other cam configurations, such as non-conformal cams, would be apparent to one of ordinary skill in the art, given the benefit of this disclosure. - The recoil reducing structure may further comprise a
cam roller 358 connected to the top end of thecam 356 bypin 359. The top end of thecam 356 may be positioned such that thecam roller 358 is substantially within acavity 353, formed within therail 346. Thecam roller 358 may contact a wall of thecavity 353, which may pre-stress thetorsion spring 370. - The recoil reduction system is configured to oppose rearward travel of the
rail 346. For example, when connected to a firearm, the recoil from the firearm, when discharged, may apply a rearward force to therail 346, causing it to move. Rearward movement of therail 346 may apply force to thecam roller 358 and thus to theconnected cam 356 which will pivot at thepivot pin 357. This movement will stress thetorsion spring 370 which advantageously moves in the same arc as thecam 356. As thetorsion spring 370 is twisted by thecam 356, the load on thetorsion spring 370 increases. This loading of thetorsion spring 370 creates a greater resistance to further twisting of thetorsion spring 370 and movement of thecam 356, thus reducing the recoil. - As previously discussed, the
torsion spring 370 can move in the same arc as thecam 356, therefore thetorsion spring 370 can also move within the same space as thecam 356, and may be configured to overlap thecam 356, creating a compact assembly with respect to traditional spring recoil systems. Acompact torsion spring 370 andcam 356 assembly may be used advantageously in smaller areas than traditional spring systems and may have fewer moving parts. For example, an elongated forend may have limited space for a recoil reduction system, requiring such systems to be generally flat and run the length of the forend. Prior recoil system adapted for elongated forends have required a number additional moving parts to accommodate the size and shape of the space available within the forend. One example is the embodiment described above and shown inFIG. 17 , which requires theextra retainer member 113. -
FIG. 33 shows another embodiment of a recoil reduction system which comprises a recoil reduction means connected to aforend 385. The recoil reduction means comprises atorsion spring 370 andcam 356 assembly. Theforend 385 comprises ahandrest stop 386 which is slidably connected to a firearm and has a recess formed therein. Other configurations and locations for installing the recoil reduction means would be apparent to one of ordinary skill in the art given the benefit of this disclosure. - The
cam 356 is pivotally mounted to theforend 385 by apivot pin 357. Thecam 356 may further comprise with acam roller 358 mounted to thecam 356 with apin 359. Thetorsion spring 370 is also mounted to the forend with thepivot pin 357 which may pass through the torsion spring coils 373 (shown inFIGS. 32A-32D ) and thecam 356. Theclosed end 372 of thetorsion spring 370 may contact thecam 356. Theopen end 371 of thetorsion spring 370 may be captured by arigid pin 366. Thetorsion spring 370 may be pre-loaded. When the firearm is discharged, thecam roller 358 may be engaged by a surface, such as ashoulder 380, of a slidingmember 334, causing thecam 356 to pivot, further loading thetorsion spring 370 which resists the movement of the slidingmember 334, thus reducing recoil. -
FIG. 34 shows the recoil reduction system embodiment ofFIG. 33 during a recoil event. A force, such as the force from the discharge of a shell, has been applied to the slidingmember 334, which has consequently moved rearward. Theshoulder 380 of the slidingmember 334 has engaged theroller cam 358, and thus thecam 356 which has pivoted about thepivot pin 357. Thetorsion spring 370 has twisted, moving in the same arc as thecam 356, and has captured energy from the motion of the slidingmember 334. The energy captured by the torsion spring from the rearward moving slidingmember 334 reduces the recoil perceived by the user and can be used to move the slidingmember 334 back to the pre-discharge position. - While this invention has been described in conjunction with the exemplary embodiments outlined above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art.
- For example, equivalent elements may be substituted for those specifically shown and described, certain features may be used independently of other features, and the number and configuration of various vehicle components described above may be altered, all without departing from the spirit or scope of the invention as defined in the appended Claims.
- Such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed exemplary embodiments. It is to be understood that the phraseology of terminology employed herein is for the purpose of description and not of limitation. Accordingly, the foregoing description of the exemplary embodiments of the invention, as set forth above, are intended to be illustrative, not limiting.
- Various changes, modifications, and/or adaptations may be made without departing from the spirit and scope of this invention.
Claims (20)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/263,674 US20100275484A1 (en) | 2005-05-19 | 2008-11-03 | Rail mounted recoil system for the forend of a firearm |
PCT/US2009/005951 WO2010062374A1 (en) | 2008-11-03 | 2009-11-03 | Rail mounted recoil system for the forend of a firearm |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/132,872 US7340857B1 (en) | 2005-05-19 | 2005-05-19 | Recoil system for the forend of a firearm |
US12/008,558 US7685755B1 (en) | 2005-05-19 | 2008-01-11 | Recoil system |
US12/263,674 US20100275484A1 (en) | 2005-05-19 | 2008-11-03 | Rail mounted recoil system for the forend of a firearm |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/008,558 Continuation-In-Part US7685755B1 (en) | 2005-05-19 | 2008-01-11 | Recoil system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100275484A1 true US20100275484A1 (en) | 2010-11-04 |
Family
ID=43029314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/263,674 Abandoned US20100275484A1 (en) | 2005-05-19 | 2008-11-03 | Rail mounted recoil system for the forend of a firearm |
Country Status (1)
Country | Link |
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US (1) | US20100275484A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8931137B2 (en) | 2012-01-24 | 2015-01-13 | Ra Brands, L.L.C. | Bushing for a firearm grip screw |
US20150089854A1 (en) * | 2013-10-02 | 2015-04-02 | Smith & Wesson Corp. | Pump Action Rifle and Action Lock Mechanism |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2104129A (en) * | 1937-08-25 | 1938-01-04 | Claude W Kress | Handgrip especially adapted for guns |
US2826848A (en) * | 1955-08-26 | 1958-03-18 | Thomas E Davies | Hand hold for guns |
US4502238A (en) * | 1982-11-01 | 1985-03-05 | Pachmayr Gun Works, Inc. | Pump gun forend |
US4514921A (en) * | 1983-02-07 | 1985-05-07 | Burkleca Frank M | Firearm recoil buffer |
US5048215A (en) * | 1990-08-30 | 1991-09-17 | Calico Light Weapon Systems | Front grip for a firearm |
US5417002A (en) * | 1994-04-15 | 1995-05-23 | Guerra; Jorge E. | Adjustable firearm handle |
US5524374A (en) * | 1994-01-12 | 1996-06-11 | Gernstein; Terry M. | Kit for retrofitting a shotgun with a recoil reduction means |
US5722195A (en) * | 1997-03-10 | 1998-03-03 | Bentley; James K. | Pistol grip recoil system for the receiver of a firearm |
US6055760A (en) * | 1998-04-03 | 2000-05-02 | Cuson; James N. | Forend for minimizing recoil from a gun |
US6101918A (en) * | 1998-05-12 | 2000-08-15 | Akins; William | Method and apparatus for accelerating the cyclic firing rate of a semi-automatic firearm |
US7340857B1 (en) * | 2005-05-19 | 2008-03-11 | Blackhawk Industries Product Group Unlimited Llc | Recoil system for the forend of a firearm |
US7685755B1 (en) * | 2005-05-19 | 2010-03-30 | Blackhawk Industries Product Group Unlimited Llc | Recoil system |
-
2008
- 2008-11-03 US US12/263,674 patent/US20100275484A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2104129A (en) * | 1937-08-25 | 1938-01-04 | Claude W Kress | Handgrip especially adapted for guns |
US2826848A (en) * | 1955-08-26 | 1958-03-18 | Thomas E Davies | Hand hold for guns |
US4502238A (en) * | 1982-11-01 | 1985-03-05 | Pachmayr Gun Works, Inc. | Pump gun forend |
US4514921A (en) * | 1983-02-07 | 1985-05-07 | Burkleca Frank M | Firearm recoil buffer |
US5048215A (en) * | 1990-08-30 | 1991-09-17 | Calico Light Weapon Systems | Front grip for a firearm |
US5524374A (en) * | 1994-01-12 | 1996-06-11 | Gernstein; Terry M. | Kit for retrofitting a shotgun with a recoil reduction means |
US5417002A (en) * | 1994-04-15 | 1995-05-23 | Guerra; Jorge E. | Adjustable firearm handle |
US5722195A (en) * | 1997-03-10 | 1998-03-03 | Bentley; James K. | Pistol grip recoil system for the receiver of a firearm |
US6055760A (en) * | 1998-04-03 | 2000-05-02 | Cuson; James N. | Forend for minimizing recoil from a gun |
US6101918A (en) * | 1998-05-12 | 2000-08-15 | Akins; William | Method and apparatus for accelerating the cyclic firing rate of a semi-automatic firearm |
US7340857B1 (en) * | 2005-05-19 | 2008-03-11 | Blackhawk Industries Product Group Unlimited Llc | Recoil system for the forend of a firearm |
US7685755B1 (en) * | 2005-05-19 | 2010-03-30 | Blackhawk Industries Product Group Unlimited Llc | Recoil system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8931137B2 (en) | 2012-01-24 | 2015-01-13 | Ra Brands, L.L.C. | Bushing for a firearm grip screw |
US20150089854A1 (en) * | 2013-10-02 | 2015-04-02 | Smith & Wesson Corp. | Pump Action Rifle and Action Lock Mechanism |
US9016187B2 (en) * | 2013-10-02 | 2015-04-28 | Smith & Wesson Corp. | Pump action rifle and action lock mechanism |
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