U.S. patent application number 13/788679 was filed with the patent office on 2014-09-11 for recoil reduction firearm stock assembly.
The applicant listed for this patent is Zeljko Vesligaj. Invention is credited to Zeljko Vesligaj.
Application Number | 20140250756 13/788679 |
Document ID | / |
Family ID | 51486027 |
Filed Date | 2014-09-11 |
United States Patent
Application |
20140250756 |
Kind Code |
A1 |
Vesligaj; Zeljko |
September 11, 2014 |
RECOIL REDUCTION FIREARM STOCK ASSEMBLY
Abstract
A recoil reduction stock assembly for a shoulder-fired firearm
is described that includes a rear stock section housing a recoil
reduction mechanism attachable to firearms with different receiver
rear faces by using a front stock section having a rear face
attachable to the rear stock section front face and a front face
attachable to the rear face of the receiver. The assembly may
include one rear stock section housing the recoil reduction
mechanism and a plurality of front stock sections, each front stock
section having the same rear face profile, but different front face
profiles conforming to different receiver rear faces. The recoil
reduction mechanism includes a compressible spring and a plunger,
whereby recoil of said firearm compresses the spring against the
plunger to absorb recoil. The assembly may also include a cheek
rest slidably attached over a part of the rear stock section and
attached to the recoil mechanism.
Inventors: |
Vesligaj; Zeljko; (Burgaw,
NC) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Vesligaj; Zeljko |
Burgaw |
NC |
US |
|
|
Family ID: |
51486027 |
Appl. No.: |
13/788679 |
Filed: |
March 7, 2013 |
Current U.S.
Class: |
42/74 |
Current CPC
Class: |
F41C 23/06 20130101 |
Class at
Publication: |
42/74 |
International
Class: |
F41C 23/06 20060101
F41C023/06 |
Claims
1. A recoil reduction stock assembly for a shoulder-fired firearm,
said stock assembly comprising: a) a front stock section having a
rear face, a front face adapted for attachment to the rear face of
a firearm receiver, a transverse bore and a stock connector bore
extending from said front stock section rear face to said
transverse bore; b) a rear stock section having a rear-opening
recoil reduction mechanism cavity, a front wall, and a front face
adapted for attachment to said front stock section rear face; c) a
stock section connector including a connector plug inserted into
said transverse bore and a stock connector bolt with a threaded end
extending forward through said rear stock section front wall and
connector bore into attachment to said connector plug for attaching
said front and rear stock sections, said connector plug includes a
threaded nut to receive the threaded end of said stock connector
bolt; d) a receiver connector to attach said front stock section to
a firearm receiver; and e) a recoil reduction mechanism inserted
into the rear stock section cavity.
2. (canceled)
3. The recoil reduction stock assembly of claim 1, further
including a cheek rest slidable over said rear stock section and
attached to said recoil reduction mechanism.
4. The recoil reduction stock assembly of claim 1, wherein said
recoil reduction mechanism includes a longitudinally aligned
cylinder, a compressible spring within said cylinder, and a plunger
extending from the rear of said cylinder, said plunger having a
forward end against said spring, whereby recoil of said firearm
compresses said spring against said plunger to absorb recoil.
5. (canceled)
6. (canceled)
7. The recoil reduction stock assembly of claim 1, wherein said
front stock section includes a receiver connector bore extending
rearwardly from the front face of said front stock section, and
said receiver connector includes a bolt extending through said
receiver connector bore for connection with said receiver.
8. A recoil reduction stock assembly for a shoulder-fired firearm,
said stock assembly comprising: a) a front stock section having a
rear face, a front face adapted for attachment to the rear face of
a firearm receiver, a transverse bore, a stock connector bore
extending from said front stock section rear face to said
transverse bore, and a receiver connector bore from the front stock
section front face; b) a rear stock section having a rear-opening
recoil reduction mechanism cavity, a front wall, and a front face
adapted for attachment to said front stock section rear face; c) a
stock section connector including a connector plug inserted into
said transverse bore and a stock connector bolt with a threaded end
extending forward through said rear stock section front wall and
connector bore into attachment to said connector plug for attaching
said front and rear stock sections, said connector plug includes a
threaded nut to receive the threaded end of said stock connector
bolt; d) a receiver connector bolt extending through said receiver
connector bore to attach said front stock section to a firearm
receiver; and e) a recoil reduction mechanism inserted into the
rear stock section cavity.
9. (canceled)
10. The recoil reduction stock assembly of claim 8, further
including a cheek rest slidable over said rear stock section and
attached to said recoil reduction mechanism.
11. The recoil reduction stock assembly of claim 8, wherein said
recoil reduction mechanism includes a longitudinally aligned
cylinder, a compressible spring within said cylinder, and a plunger
extending from the rear of said cylinder, said plunger having a
forward end against said spring, whereby recoil of said firearm
compresses said spring against said plunger to absorb recoil.
12. (canceled)
13. (canceled)
14. (canceled)
15. A recoil reduction stock assembly for a shoulder-fired firearm,
said stock assembly comprising: a) front stock section having a
rear face, a front face adapted for attachment to the rear of a
firearm receiver, a longitudinal receiver bolt bore extending from
the front face to the rear face of said front stock section, and a
stock section connector bore extending transversely into said front
stock section; b) a rear stock section having a rear-opening recoil
reduction mechanism cavity, and a front connector wall with a
longitudinal bore; c) a stock section connector plug insertable
into said front stock section connector bore; d) a receiver
connector bolt insertable through said front stock section bolt
bore to attach said front stock section to a firearm receiver; e) a
stock connector bolt extending through said rear stock section
front wall and into attachment with said connector plug to attach
said rear stock section to said front stock section; and f) a
recoil reduction mechanism inserted into the rear stock section
cavity, said recoil reduction mechanism including a longitudinally
aligned cylinder, a compressible spring within said cylinder, and a
plunger extending from the rear of said cylinder, said plunger
having a forward end against said spring, whereby recoil of said
firearm compressed said spring against said plunger to absorb
recoil.
16. (canceled)
17. The recoil reduction stock assembly of claim 15, further
including a cheek rest having a rear plate transverse to the
longitudinal axis of said rear stock section and said recoil
reduction mechanism includes a plunger, said cheek rest rear plate
being releasibly attached to said plunger.
18. (canceled)
19. The recoil reduction stock assembly of claim 15, wherein said
stock connector bolt has a threaded end and said connector plug
includes a threaded nut to receive the threaded end of said
connector bolt.
20. The recoil reduction stock assembly of claim 15, wherein said
receiver connector bolt is at an angle to said stock connector
bolt.
21. A recoil reduction stock system for a shoulder-fired firearm,
said stock system comprising: a) a first front stock section having
a rear face, a front face adapted for attachment to the rear face
of a first firearm receiver, a transverse bore and a stock
connector bore extending from said first front stock section rear
face to said transverse bore; b) a second front stock section
having a rear face, a front face different from the front face of
said first stock section adapted for attachment to the rear face of
a second firearm receiver having a rear face different from the
rear face of said first receiver, a transverse bore arid a stock
connector bore extending from said first front stock section rear
face to said transverse bore; c) a rear stock section having a
rear-opening recoil reduction mechanism cavity, a front walk and a
front face adapted tor attachment to said front stock section rear
face; d) a stock section connector including a connector plug
inserted into said transverse bore and a stock connector bolt with
a threaded end extending forward through said rear stock section
front wall and connector bore into attachment to said connector
plug for attaching said front and rear stock sections, said
connector plug includes a threaded nut to receive the threaded end
of said stock connector bolt; e) a receiver connector to attach
said front stock section to a firearm receiver; and f) a recoil
reduction mechanism inserted into the rear stock section
cavity.
22. The recoil reduction stock assembly of claim 21, further
including a cheek rest slidable over said rear stock section and
attached to said recoil reduction mechanism.
23. The recoil reduction stock assembly of claim 21, wherein said
recoil reduction mechanism includes a longitudinally aligned
cylinder, a compressible spring within said cylinder, and a plunger
extending from the rear of said cylinder, said plunger having a
forward end against said spring, whereby recoil of said firearm
compresses said spring against said plunger to absorb recoil.
24. The recoil reduction stock assembly of claim 21, wherein said
front stock section includes a receiver connector bore extending
rearwardly from the front face of said front stock section, and
said receiver connector includes a receiver connector bolt
extending through said receiver connector bore for connection with
said receiver.
25. The recoil reduction stock assembly of claim 24, wherein said
receiver connector bolt is at an angle to said stock connector
bolt.
Description
BACKGROUND OF THE INVENTION
[0001] (1) Field of the Invention
[0002] The present invention relates to an improved recoil
reduction stock assembly for use with a shoulder-fired firearm,
such as a rifle or a shotgun, and to an improved stock assembly
that is adaptable for use with different firearm receivers.
[0003] (2) Description of the Prior Art
[0004] Shoulder-fired firearms, especially shotguns, may have
significant recoil or "kick" due to the rearward force exerted when
the firearm is fired. This recoil can decrease accuracy since the
shooter may tend to flinch in anticipation of the recoil. In
addition, the recoil may cause bruising and discomfort or more
permanent injury of the shooter's shoulder.
[0005] As a result, numerous designs have been proposed in the
prior art directed to reducing the recoil or the impact of the
recoil against the shooter's shoulder. Generally, the solutions
proposed involve the installation behind the firearm receiver,
e.g., in or behind the stock, of a cylinder that includes a spring
or a compressible fluid. Upon firing, the rearward movement of the
firearm receiver temporarily compressing the spring or fluid,
absorbing a portion of the recoil shock.
[0006] Many of the solutions proposed are complex, requiring
extensive assembly and difficulty in attachment to the firearm
receiver. Other proposed solutions create the potential to pinch
the shooter's hand or cheek when fired. Other configurations
increase the weight of the firearm or have a shape that is so
dissimilar to the usual shape of a firearm stock that it interferes
with the normal handling and firing of the firearm. Finally, the
configurations of the mechanisms limit their use to a single model
of firearm, requiring a different device to be constructed for each
firearm model.
[0007] Thus, there is a continuing need for a recoil reduction
stock that is attachable to different types of firearm receivers,
enabling the use of one recoil reduction mechanism with different
firearms. In addition, there is a need for a recoil reduction stock
for use on firearms that will significantly reduce the shock of
recoil while avoiding the risk of pinching the shooter.
SUMMARY OF THE INVENTION
[0008] The present invention relates to an improved recoil
reduction stock assembly for use on a firearm, especially a
shotgun, and to a firearm incorporating the improved stock.
[0009] Generally, the recoil reduction stock assembly includes a
stock with rear and front sections. The rear stock section has a
rear-opening recoil reduction mechanism cavity, and a front face
adapted for attachment to the front stock section rear face. The
front stock section has a rear face and a front face adapted for
attachment to the rear face of a given firearm receiver.
[0010] A stock section connector attaches the front and rear stock
sections, while a receiver connector attaches the front stock
section to a firearm receiver. A recoil reduction mechanism is
inserted into the rear stock section cavity. The rear stock section
may be combined with different front stock sections, with the front
stock sections having the same rear face configuration, but
different front face configurations so they can be attached to the
rear faces of receivers of different designs. The assembly may also
include a cheek rest that fits over a portion of the stock rear
section and is attached to the recoil mechanism.
[0011] The recoil reduction mechanism is comprised of a housing
sized for insertion into the cavity of the stock rear section. The
housing includes a generally horizontal, longitudinally aligned
cylindrical conduit that holds a compressible spring. Forward
movement of the spring within the conduit is limited by a closed
conduit front end, which may be effected by a plug in the front end
of the conduit. A plunger or piston extends into the rear of the
conduit and into engagement with the rear end of the spring.
Rearward movement of the plunger is limited by a pin that extends
transversely through a longitudinal slot in the wall of the
cylinder and into the plunger. Upon rearward movement of the
plunger, the pin contacts the rear of the slot, preventing further
rearward movement.
[0012] The rear end of the plunger is attached to a pressure plate,
which preferably has a surface area corresponding to the area of
the back of the stock rear section. The plate is in a plane
transverse to the axis of the plunger. When the recoil mechanism is
in the non-recoil position, the pressure plate is spaced from the
rear of the stock.
[0013] The cheek rest includes a rear connector plate that is
releasibly attached to the recoil mechanism pressure plate, and a
cheek plate that extends over at least part of at least one side of
the rear stock section, in particular over the area against which
the shooter's cheek would normally rest when firing the shotgun. A
resilient butt plate is normally attached to the rear of the
connector plate.
[0014] The recoil mechanism may also include an alignment guide to
avoid binding of the plunger within the conduit. The guide may
include a projection on the plunger or housing and a receiving slot
on the other member, whereby the projection slides within the slot
as the plunger moves inwardly and outwardly in the conduit.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is a sectional side view of the stock assembly in the
non-recoil position.
[0016] FIG. 2 is a sectional side view of the stock assembly in the
recoil position.
[0017] FIG. 3 is a side view of the stock assembly attached to a
firearm receiver.
[0018] FIG. 4 is a partial sectional side view of the stock
assembly in the non-recoil position.
[0019] FIGS. 5 and 6 are side views of other front stock sections
for attachment to different styles of firearms that have different
rear face profiles.
DETAILED DESCRIPTION OF THE INVENTION
[0020] In the following description, terms such as horizontal,
upright, vertical, above, below, beneath, and the like, are used
solely for the purpose of clarity in illustrating the invention,
and should not be taken as words of limitation. The drawings are
for the purpose of illustrating the invention and are not intended
to be to scale.
[0021] Generally, a preferred embodiment of the invention as
illustrated in the drawings is comprised of a stock, generally 10,
a recoil reduction mechanism, generally 12, and a cheek rest,
generally 14. Stock 10 is comprised of a front stock section 16 and
a rear stock section 18. Stock sections 16 and 18 are releasibly
attached by a stock section connector, generally 20.
[0022] Front stock section 16, generally shaped to be gripped by
the user, includes a front face 22 shaped for attachment to the
rear of a shotgun receiver 24. A bore 26 extends through section 16
to receive a rear inserted receiver connector bolt 30 used to
attach section 16 to receiver 24. Section 16 also includes a
transverse bore 32 to receive a stock connector 34.
[0023] Rear stock section 18 includes a rear-opening cavity 36 to
receive recoil reduction mechanism 12. Mechanism 12 is held within
cavity 36 by releasable set screw 38. Connector plate 40 is affixed
across the front of stock section 18. A stock connector bolt 42
extends through plate 40 and screws into nut 44 on plug 34 to
secure sections 16 and 18 together. The rear face of section 18
includes a recess to receive the front of connector plate 40.
[0024] Recoil reduction mechanism 12 is sized for insertion into
cavity 36. Mechanism 12 is comprised of a housing 50, preferably
molded of an appropriate plastic with an integral cylindrical
conduit 52 longitudinally aligned with stock 10. The front of
conduit 52 is closed with conduit plug 54, attached to conduit 52
with pin 56. A compressible spring 60 is held within conduit 52,
with the forward movement of spring 60 being prevented by plug
54.
[0025] A plunger 62 is slidably inserted into the rear of conduit
52, with the front face of plunger 62 abutting the rear of spring
60. Plunger 62 is held within conduit 52 by plunger pin 64 inserted
transversely into the side of plunger 62 through longitudinal slot
66 in the wall of conduit 52. When mechanism 12 is in the
non-recoil position, i.e., when the firearm is not being
discharged, pin 64 is held against the rear of slot 66. However,
when the firearm is being discharged, i.e., in the recoil position,
plunger 62 moves further into conduit 52, with pin 64 moving toward
the front end of slot 66.
[0026] A plunger plate 70 is affixed to the rear of plunger 62.
Plate 70 has a rear face transverse to the longitudinal axis of
conduit 52, and preferably has a cross-section the same as the
cross-section of the rear face of rear stock section 18. An
alignment guide 72 aids in maintaining alignment of plunger 62
within conduit 52 when pressure is applied to plate 70. Guide 72 is
comprised of a longitudinally aligned guide bar 74 that extends
forward from plate 70 and a slotted receiver 76 to receive bar
74.
[0027] Cheek rest 14 is comprised of a cheek plate 80 that extends
over the top and at least part of one side of rear stock section
18. Plate 80 is configured to cover the sides of rear stock section
18 where a shooter's cheek would normally rest during shooting.
Rest 14 also includes rest rear connector plate 82 mounted
transverse to the longitudinal axis of conduit 52. The
cross-section of plate 82 is preferably the same as the
cross-section of plate 70. Plates 70 and 82 are releasibly
attached, e.g., by screws, not shown. Butt plate 84 is attached to
the rear face of plate 82.
[0028] The stock assembly is assembled by bolting front face 22 of
front section 16 to receiver 24 with bolt 30. Connector 34 is
inserted into bore 32 after section 16 is bolted to receiver 24.
The front of rear stock section 18 is then placed against the rear
of front section 16 and sections 16 and 18 are bolted together with
bolt 42, which is inserted through plate 40 and screwed into nut 44
on connector 34 inserted into bore 32. Bolts 30 and 42 are normally
at an angle to each other. Recoil reduction mechanism 12 is then
inserted into cavity 36 in stock section 18 and secured in place
with set screw 38. Cheek rest 14 is then positioned over stock
section 18 and joined to mechanism 12 by releasibly attaching cheek
connector plate 82 to plunger plate 70. Butt plate 84 is then
attached to the rear face of plate 82.
[0029] Instead of front stock section 16, rear stock section 18 may
be attached to different front stock sections such as front stock
sections 90 and 92 shown for example in FIGS. 5 and 6,
respectively. It will be understood that the invention is not
limited to any particular front stock section configuration, the
only requirement being that the front stock sections have the same
rear face configuration for attachment to the front face of the
same common rear stock section. The invention also contemplates a
kit comprised of one rear stock section, a recoil reduction
mechanism, and a plurality of different front stock sections
attachable to the rear stock section.
[0030] When the firearm, is to be used, the shooter grips the
firearm in the normal manner and places his or her cheek against a
side of cheek rest 14 with butt plate 84 against his or her
shoulder. When the firearm is discharged, the recoil urges stock 10
rearwardly. Since plunger plate 70 is prevented from rearward
movement by the shooter's shoulder, plunger 62 moves into conduit
52 compressing spring 60 to absorb a part of the recoil. As the
recoil dissipates, the force of spring 60 returns plunger 62 to its
original position. During firing, the shooter's cheek remains
firmly against cheek plate 80 so that no pinching occurs and the
stock is held steady.
[0031] Certain modifications and improvements will occur to those
skilled in the art upon a reading of the foregoing description. It
should be understood that all such modifications and improvements
have been deleted herein for the sake of conciseness and
readability but are properly within the scope of the following
claims.
* * * * *