JPS5995398A - Detachable cushion type small arm grip - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improved firearm grip of the type in which at least a portion of the resilient material is formed with an outer surface that cushions the shooter's hand.

The rifles often used by borrowed officers as riot rifles are in the form of pump-action shotguns with pistol-style handles, making them easier to handle than traditional shotguns with shoulder stocks. This type of riot rifle has a folding stock,
This is sometimes connected to a pistol-shaped grip and can be pivoted into a position where it can be used as a shoulder stock if necessary.

SUMMARY OF THE INVENTION The present invention provides a grip assembly that is in many respects particularly suitable for use with riot rifles such as those described above, but which may also be used with other types of firearms. . The grip assembly can be easily and quickly secured to the gun's breech and, once installed, provides a very strong and secure connection between the grip and the breech. The assembly includes a substantially rigid structure or portion disposed rearwardly of the breech barrel and connected to the rear surface thereof, and at least when the gun is in use, the assembly is supported by the rigid structure and is elastically deformable to allow the shooter to and a body of resilient material providing the outer surface for contact with the hand.

The rigid structure has a connection located at a level higher than the finger contact portion of the trigger of the gun, and is attached to the breech barrel by a screw or other fastening means also located at a higher level than the trigger. The third portion of the rigid structure extends rearwardly below the connecting portion and supports the elastic material of the grip.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The pump shotgun shown at 10 in FIG. 7 is substantially conventional in most respects except that it is provided with a grip assembly 11 embodying the present invention; The grip assembly includes an adapter 12 and a grip 13 which is removably connected to the remainder of the gun by the adapter 12. The conventional parts of the gun include a breech tube 14, a barrel 15 connected to the front end of the breech tube and extending along an axis 16, a barrel 15 extending forward from the underside of the breech tube parallel to the barrel and continuous to the breech tube. It consists of a magazine tube 1T containing a series of shotgun bullets to be supplied. The front end 18 of the cylindrical ponder is disposed around the magazine tube 1T and is manually reciprocated back and forth with respect to the magazine tube 1T. When this front end 1B is moved first backwards and then forwards relative to the rest of the gun, two actuating rods 19 extending rearward from the front end 18 are connected to the normal firing, loading and ejecting mechanism in the breech barrel. 20, the spent mulberry pod is ejected laterally from the side opening 21 of the breech barrel, the next bullet is sent from the magazine 1T into the firing chamber at the rear end of the barrel, and the hammer of the firing mechanism is activated. cause. The shooter then places his hand on the externally exposed actuating portion 22 of the trigger and pulls it rearward to fire the gun.

As shown in detail in FIGS. 2 to 5, the breech tube 14 mainly consists of a hollow metal body, which is arranged at an angle a with a plane 24 perpendicular to the barrel axis 1G. It has a flat front surface 23 facing the rear surface and slightly inclined. While the outer peripheral flange 25 protrudes rearward along the edge of the back surface 23, a protruding boss 26 protrudes rearward beyond the rear surface 23 at a central position, and has a screw hole 27 therein. . Insert this screw hole, grip assembly 1
2 is attached to the transition piece. The pulling all-around loop element around the pulling all-actuating portion 22 is connected to the tail cylinder rear surface 23 as shown at 29.
It protrudes backward beyond the.

The adapter 12 is made of a suitable material such as steel, zinc die-cast alloy, or a rigid resin plastic material, has a resistance to the forces encountered during use and handling of the gun, and is attached to the rear surface of the breech barrel.
3 and the outer peripheral flange) 25 has a front surface 30 that is tightly fixed in the front direction. The front surface 30 is an adagetor 12
The front face 30 of has a face 31 extending along the outer periphery and facing forward, and the face 31 has an inclined axis 32 angled to intersect the axis 16 of the barrel with the axis of the screw hole 27. Preferably, it is perpendicular to the surface. In the assembled state of both parts, the surface 31 engages with the rear edge of the flange 25 and is in close contact with the receiving part. The adapter 12 has a flange 33 that protrudes forward and is surrounded by the inside of the surface 31, and the lip 33 is inserted into the outer periphery flange 25 of the transition piece in the assembled state, and the lip 33 is inserted into the outer periphery flange 25 of the transition piece. It extends parallel to this. The front edge 34 of the lip 33 is located within the plane of the rear surface 23 of the tail tube and comes into contact with the rear surface 23 when both parts are assembled. The front surface 30 of the adapter 12 includes a recess 35 inside the 9'j'' 33 to reduce the weight of the adapter and the transition tube post 26. The screw 36 extends through the adapter opening 38 and has a threaded shank 3T that is a tight fit thereto and is screwed into the screw hole 2T, through which the screw head 138 is inserted. is brought into contact with the shoulder portion 39 of the adapter,
Tighten the adapter firmly to the transition piece.

The illustrated screw 36 is of the Allen head type and has a non-circular recess 40 that engages an Allen wrench used to install and remove the screw.

The adapter 12 has a connecting portion 41 on the rear side, to which the grip 7'13 is removably fixed. The coupling portion 41 has a protrusion 42 extending along an axis 43 which is inclined downwardly and rearwardly as shown and intersects the axis 16.32 and lies in a common plane of both axes.

The protrusion 42 has a straight cylindrical upper outer surface 44 and a lower outer surface 45 that tapers slightly downwardly, both surfaces being aligned with the axis 43. Also, the protrusion 42
Therein is formed an aligned and upwardly extending threaded recess or hole 46 which engages a threaded shank 47 of a screw 48 holding grip 13 to adapter 12.

The adapter 12 has two similar arcuate curved surfaces 14B (FIG. 4) on opposite sides of the protrusion 42, and a portion 49 of the adapter is laterally sandwiched between these arcuate curved surfaces 148 at the rear. The protrusion 42 extends from the flat surface 51 and is defined by the opposing side surfaces 50 and a rearwardly downwardly inclined flat surface 51 . Further as shown, a reinforcing portion or reinforcing place 52 of the adapter projects from the flat surface 51 and is connected to the projection 42.

Grishi 7'13 is the American Special Fraud No. y, IlIg, iGwo issue "Cushion type firearm grip" granted to Packmire et al. on July 6, 1979 and /qg/.
Preferably, it is of the type described in U.S. Pat. That is, the grip 13 has a body 53 molded from a suitable elastic material that deforms elastically, such as neoprene rubber having a Shore hardness of between 33 and 35 on the A scale. This elastic body extends downward far enough below the finger that is placed on the actuating part 22 of the trigger, while the upper part of the adapter 12, which contacts the rear surface 23 of the transition piece, is located well above the actuating part of the trigger. is desirable. The grit body 53 has an outer shape suitable for being held in the shooter's hand, and the shooter's finger is placed on the trigger to operate it. The outer surface of the elastic body 53 is provided with grid-like serrations and other irregularities as shown in the figure.
Increases grip contact between the cushion surface and the shooter's hand.

The resilient grip body 53 has a reinforcing structure 54 therein, which is preferably cylindrical and extends around and aligned with the shaft 43, the upper end of which is connected to the adapter. A receptacle is received around the protrusion 42 for a close fit, effectively and firmly positioning the grip relative to the adapter. The cylindrical structure 54 is completely surrounded by the elastic body 53, but may include a thin layer of elastic material inside, and the elastic body and the cylindrical structure 54 define the recess 56.
This recess 56 is aligned with the shaft 43 and receives the notch 42, and also extends downwardly beyond it. The reinforcing cylinder 54 supports a rigid transverse wall 57 that includes an opening 58 at its lower end, the shank 4γ of the screw 48 extending through the opening 58 and the head of the screw carried at 60 upwardly against the wall 57. 59 fastens the grits upwardly and forwardly to the adapter 12. The elastic body 53 has a recess 56 and a reinforcing cylinder 5.
4 has a cushioning recess 61 at the rear thereof, which cushioning recess 61 extends elongately in the y-perpendicular direction as shown, and under the action of a recoil force, as taught in prior U.S. Pat. Improves the elastic deformability of the elastic material. A portion 62 forming the upper end of the elastic body 53
is located behind the top rear end of the adapter 12 to prevent the shooter's hand from contacting the sharp surfaces of the adapter at that location. The front side of the elastic body 53 constituting the grip 13 has a four part 63, the recess 63 having a shape corresponding to the receiving part 49,52 of the adapter. Further, the elastic body 53 has a downwardly extending portion 64 behind the trigger and the trigger phase loop to prevent and protect the shooter's fingers from coming into contact with the rear surface of the trigger luzo when the gun is fired.

In addition to securing the grip 13 to the adapter 12, the screw 48 also has the primary function of providing a connection for attaching one end of the flexible sling 65 I) to the gun.

The other end of the sling has a loop 6 supported by a removable threaded cap 68 that closes the front end of the magazine tube 11.
Fixed to 1.

To perform this first function, the head 59 of the screw 48 is formed as a hollow element into which the shank 166 of the sling retaining loop element 66 projects. Loop element 66 has a transverse section 266 at its inner end located within head 59.
, and this transverse portion 266 connects with the inner shoulder portion of the head 59.
By engaging at 66, the loop element 6 can be rotated freely relative to each other between different positions as shown in FIG.
6 to the head 59. This pivoting or rotational connection between the roof element 66 and the head 59 is described in U.S. Pat. Can be configured as described.

When attaching the grip assembly 11 to the shotgun 10, the shooter first positions the adapter 12 at the location shown in FIG. 2, then pushes the screw 36 forward into the adapter and into the hole 27 in the breech barrel. Tighten the adagetor to the back of the transition piece.

Next, attach the grip 13 to the shaft 4 around the protrusion 42 of the adapter.
3 upwardly to the position shown in Figure 1, and then screw the screw 48 upwardly through the four parts 56 of the grip and into the hole 46 of the adapter to tighten the grip to the adapter. When the grip is positioned like this,
The elastic body 53 contacts the adapter 12 around the adapter aperture 38 location and around the screw 36 passing through the aperture, thereby concealing the screw 5) 36 and providing the proper appearance of the overall assembly. One end of the sling 65 is then connected to a breech loop 66 supported by the head 59 of the screw, and the other end is connected to a loop 67 secured to the cap 68 of the magazine tube 17.

In the configuration example shown in FIG. 7, except that the adapter is configured to have a 7H foldable stock assembly 68,
Adapter 12a of grip assembly 11a and grip 13
a is equal to the corresponding part in Figures 1 to 2. The collapsible breech assembly 68 swings between an inoperative position, shown by the solid line, extending forward along the top of the barrel, and an active position, shown by the dashed line, swinging rearward. do. The assembly 68 consists of a seventh part 69, which is pivotally connected at 70 to the adapter 12a for the above-mentioned rocking movement, and a first part 169, which serves as a contact element with the shoulder.

This first portion 169 has a retracted position (solid line in FIG. 7) that is vertically aligned with the first portion 69, and an abutment proboscis that is engaged by the shooter's shoulder when firing the gun as a shoulder-rest type firearm. It is possible to swing between the position shown by the dotted line extending downward. The first part 69 is mounted for pivoting relative to the adapter about a transverse axis 71 between the illustrated positions, and a spring-loaded detent element 72 moves the first part 69 in its operative or inoperative position. It plays the role of being releasably held in the operating position.

This folding stock configuration shown in Figure 7 is
It may be constructed as described in U.S. Pat. Whereas the gun stock is rotatably mounted on an integral grip, in the present invention it is rotatably mounted on an adagetor.

A further embodiment of the invention, shown in FIGS. As shown, the shot gun/(7) is treated as an integrated unit when being attached to and detached from the transition piece 14b. Reinforcement part 12b
has an upper portion 73 with a front surface T4, which contacts the rear surface 23b of the transition piece 14b in an upward and forward direction, and is tightened against the rear surface 23b by a screw T5 inserted through an opening in the upper portion T3 of the reinforcing portion 12b. It will be worn. The screw 75 is attached to the shaft 16 of the gun barrel.
It extends along an axis 77 that intersects and lies in a common plane with b, and is engageable in a threaded hole 7B provided in the rear part of the transition piece. The head T9 of the rigid member 12b is fastened to the upper part 73 of the rigid member 12b, fixing it firmly to the back surface of the transition piece. The rigid member 12b has a protrusion 80 extending downward and rearward from its upper portion 73, and this protrusion 80 is embedded in and joined to the elastic body 13b, and the elastic body 1
3b protrudes to a position near the lower end, reinforcing the elastic body and its connection to the gun. The reinforcing portion 12b is made of any suitable rigid material such as steel, alloy die-casting material, resinous glass material, etc., like the adapter 12 in the first aspect of the present invention described above.

It is preferable that the elastic body 13b has an inclined elongated recess 81 behind the upper and lower parts of the reinforcing part 12b, and this recess 8
1 has the same function as the recess 61 in FIG. 2, increasing the elastic deformability of the grip in the front-rear direction, thereby improving the cushioning effect of the grip on the shooter's hand when a recoil force is applied.

The screw 75 can be inserted into the interior of the grip via an opening 82 provided behind the recess 81 and aligned with the shaft 77 . After the screw T5 is passed through the opening 82 and tightened with a screwdriver inserted into the opening 82, a plug 83 made of a comb or other elastic material is inserted into the opening 82 and closes the opening 82.

The annular rib 84 of the plug is received within a cooperating groove formed in the wall of the aperture 82 to hold the plug in position, in which the back surface of the plug is aligned with the back surface of the primary resilient body 13b. , forming a substantially continuous surface on its back surface. A similar plug 85 is fitted into the lower end of the recess 81 and -
1 Close this.

The plug 85 is made of rubber or other suitable elastic material and provides a surface that is substantially continuous with the lower surface of the grip body 13b, and the Kf plug 5 has a peripheral bead that fits into a groove provided in the inner wall of the recess 81. 86 to lock the bladder in place. The outer surface of the grip main body 13b is formed in the same manner as the outer surface of the Grino 7"13 in the first aspect of the present invention described above, and is elastically deformed so that it is easy to hold the shooter's hand during firing and handling. It buffers the welding between the grip and the grip and improves its wearability.

For the grip shown in Figures g and 9, place the grip against the back of the transition piece, insert the screw T5 into the opening 82,
75 to the breech tube, and finally closing the opening 82 with the f2 gun 83, it can be easily attached to the gun.

[Brief explanation of the drawing]

FIG. 1 is a side view of a pump-type shotgun having a grip assembly according to the present invention; FIG. 2 is an enlarged partial cross-sectional view of the rear part of the shotgun and the grip; FIG. 18 is a 2A-2A of FIG. Figure 3 is a horizontal cross-sectional view taken along line 3-3 of Figure 2; Figure 2 is a view taken along line 4-4 of Figure Ω; The second figure shows #1' along line 5-5 in Figure 2! 1" vertical partial section; FIG. 6 is a perspective view of the adapter of FIGS. 1-5; FIG. m7 is a side view of a variant embodiment of a shotgun with a collapsible stock; FIG. A partial vertical sectional view similar to FIG. 2 showing yet another embodiment; and FIG. 9 is a y-perpendicular sectional view taken along line 9--9 in FIG. gun), 11.11ap1 l
b...grip assembly, 12.12 a, 12
b・”Adapter (rigid structure), 13.13a, 1
3b...grip, 14, 14b...tail tube, 15.
... Barrel, 20... Firing machine, 22... Full pull operation part, 23° 23a... Back of breech tube, 36.75...
Screws (fixing means included 41...connection part, 42...protrusion,
48... Screw (No. 1 fixing means), 53... Grip body (elastic body), 56... Recessed portion -

Claims (1)

[Claims] (/') A grip assembly for a firearm having a trigger including a breech, a barrel, a firing mechanism, and an actuating portion on which a shooter's finger is engaged for firing, the grip assembly comprising a breech. a substantially rigid structure removably connected to the base; a resilient body secured to the rigid structure and gripped by the shooter's hand in use;
and a fixing means for removably fixing the rigid structure to the transition piece, wherein the rigid structure is disposed behind the rearwardly facing back of the transition piece and the fixing means connects the actuating portion of the trigger to the transition piece. a connection portion removably secured by a high l/R lever near the upper end of the grip assembly; A grip assembly that extends below the level of the shooter's hand and is gripped by the shooter's hand, creating a cushioning contact between the two when the gun is gripped. @ In the grip assembly according to claim 1, the rigid structure has a protrusion extending downward and rearward from the connecting portion thereof, and the elastic body is removably connected to the rigid structure, and the The protrusion has a recess into which the protrusion is movably fitted in the axial direction, and a second fixing means extends upwardly through the recess through the elastic body to fix the elastic body to the rigid structure. A grip body characterized by being connectable to. ■ In an assembly for connecting a grip, in which at least a portion of the elastic material is formed to be held in the shooter's hand, to a gun having a breech; the assembly is formed separately from the gun and the grip; 6, a first fixing means removably fixes the adapter's coupling part to the transition piece, and a second fixing means fixes the grip of the adapter to the transition piece. An assembly characterized in that it is removably fixed to a second part.