U.S. patent application number 13/971341 was filed with the patent office on 2015-02-26 for anti-rattle collapsible buttstock.
The applicant listed for this patent is Judd Burke, Matthew Vallo. Invention is credited to Judd Burke, Matthew Vallo.
Application Number | 20150052795 13/971341 |
Document ID | / |
Family ID | 52479087 |
Filed Date | 2015-02-26 |
United States Patent
Application |
20150052795 |
Kind Code |
A1 |
Burke; Judd ; et
al. |
February 26, 2015 |
ANTI-RATTLE COLLAPSIBLE BUTTSTOCK
Abstract
An apparatus for an anti-rattle assembly for a collapsible
buttstock for a firearm may include a baseplate with a plurality of
lower guides and a plurality of fasteners wherein the plurality of
fasteners removably secure the anti-rattle assembly to a plurality
of fastener positions of a buttstock body. The anti-rattle assembly
may further include a pressure plate with one or more ridges to
engage one or more rail surfaces of a receiver extension and a
plurality of upper guides and a plurality of biasing members
wherein the pressure plate is vertically aligned with the baseplate
and the plurality of biasing members are coupled between the upper
guides and the lower guides and bias the one or more ridges against
the one or more rail surfaces. The anti-rattle assembly restricts
the movement of the receiver extension in a tubular aperture of the
buttstock body.
Inventors: |
Burke; Judd; (Xenia, OH)
; Vallo; Matthew; (Dayton, OH) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Vallo; Matthew
Burke; Judd |
Dayton
Xenia |
OH
OH |
US
US |
|
|
Family ID: |
52479087 |
Appl. No.: |
13/971341 |
Filed: |
August 20, 2013 |
Current U.S.
Class: |
42/71.01 |
Current CPC
Class: |
F41C 23/14 20130101;
F41C 23/20 20130101; F41C 23/04 20130101 |
Class at
Publication: |
42/71.01 |
International
Class: |
F41C 23/04 20060101
F41C023/04 |
Claims
1. An anti-rattle assembly for a collapsible buttstock for a
firearm, comprising: a baseplate with a plurality of lower guides
and a plurality of fasteners wherein the plurality of fasteners
removably secure the anti-rattle assembly to a plurality of
fastener positions of a buttstock body; a pressure plate with one
or more ridges to engage one or more rail surfaces of a receiver
extension and a plurality of upper guides; a plurality of biasing
members wherein the pressure plate is vertically aligned with the
baseplate and the plurality of biasing members are coupled between
the plurality of upper guides and the plurality of lower guides and
bias the one or more ridges against the one or more rail surfaces;
and wherein the anti-rattle assembly restricts a movement of the
receiver extension in a tubular aperture of the buttstock body.
2. The anti-rattle assembly of claim 1, wherein the buttstock body
further comprises one or more upper stops and wherein the pressure
plate comprises one or more lower stops that engage the one or more
upper stops to restrict a pressure of the one or more ridges
against the one or more rail surfaces.
3. The anti-rattle assembly of claim 1, wherein the plurality of
fasteners include at least one of the following, a barb fastener, a
clip fastener, a rivet, a screw, a bolt and nut, an expansion bolt,
a cantilever hook, a spring toggle, a turnbuckle, a pine in hole, a
wedge in slot, a trap, a snap, a ball and socket, a cantilever
spring, a crush rib, welding, brazing, solvent bonding, Velcro, a
crimp, or a seam, and wherein the plurality of fastener positions
include at least one of the following, an fastener aperture
operable to receive the plurality of fasteners or a solid
blank.
4. The anti-rattle assembly of claim 1, wherein the plurality of
biasing members include at least one of the following, a spring, a
compressible foam, a compressible gel, or a fluid.
5. The anti-rattle assembly of claim 1, wherein the baseplate
further comprises a plate aperture to allow a locking pin to
slideably couple with the baseplate.
6. The anti-rattle assembly of claim 5, wherein the baseplate
further comprises a lower pin biasing guide for a pin biasing
spring, the pin biasing spring applying a biasing for on the
locking pin.
7. A method of reducing movement in a collapsible buttstock,
comprising: applying pressure on a receiver extension inserted into
a tubular aperture of a buttstock body by using an anti-rattle kit
comprising: a baseplate with a plurality of lower guides and a
plurality of fasteners wherein the plurality of fasteners removably
secure the anti-rattle kit to a plurality of fastener positions of
the buttstock body; a pressure plate with one or more ridges to
engage one or more rail surfaces of the receiver extension and a
plurality of upper guides; and a plurality of biasing members
wherein the pressure plate is vertically aligned with the baseplate
and the plurality of biasing members are coupled between the
plurality of upper guides and the plurality of lower guides and
bias the one or more ridges against the one or more rail surfaces;
aligning an upper tube portion of the receiver extension with an
upper body portion of the tubular aperture with the applied
pressure to reduce a movement of the buttstock body in relation to
the receiver extension; and maintaining the alignment a tubular
axis of the buttstock body with a firearm axis.
8. The method of reducing movement of claim 7, wherein the
buttstock body further comprises one or more upper stops and
wherein the pressure plate comprises one or more lower stops that
engage the one or more upper stops to restrict the pressure of the
one or more ridges against the one or more rail surfaces.
9. The method of reducing movement of claim 7, wherein the
plurality of fasteners include at least one of the following, a
barb fastener, a clip fastener, a rivet, a screw, a bolt and nut,
an expansion bolt, a cantilever hook, a spring toggle, a
turnbuckle, a pine in hole, a wedge in slot, a trap, a snap, a ball
and socket, a cantilever spring, a crush rib, welding, brazing,
solvent bonding, Velcro, a crimp, or a seam, and wherein the
plurality of fastener positions include at least one of the
following, an fastener aperture operable to receive the plurality
of fasteners or a solid blank.
10. The method of reducing movement of claim 7, wherein the
plurality of biasing members include at least one of the following,
a spring, a compressible foam, a compressible gel, or a fluid.
11. The method of reducing movement of claim 7, wherein the
baseplate further comprises a plate aperture to allow a locking pin
to slideably couple with the baseplate.
12. The method of reducing movement of claim 11, wherein the
baseplate further comprises a lower pin biasing guide for a pin
biasing spring, the pin biasing spring applying a biasing for on
the locking pin.
13. A collapsible buttstock assembly, comprising: a receiver
extension having an outer an alignment rail extending
longitudinally along the receiver extension and comprising an
elongated slot with a plurality of cavities spaced apart at regular
intervals and one or more rail surfaces spanning a length of the
alignment rail wherein each rail surface is situated on either side
of the plurality of cavities; a buttstock body comprising: a body
axis that runs longitudinally from a first end to a second end, a
tubular aperture with a tubular axis and a groove parallel with the
tubular axis and is situated along an outer tube wall of the
tubular aperture, the tubular axis is parallel to the body axis,
and wherein the tubular axis receives the receiver extension, a
locking pin situated in a pin aperture with a pin axis that
orthogonally penetrates the groove and wherein the locking pin in
an extended position engages a cavity of the plurality of cavities
and restricts a movement of the receiver extension, a pin biasing
spring that biases the locking pin into the groove, a lever coupled
to the locking pin wherein when the lever is actuated in a first
direction, the locking pin is in retracted position and when the
lever is in a resting state, the locking pin is in the extended
position, and a plurality of fastener positions located around a
perimeter wall of a rattle aperture; and an anti-rattle assembly
having: a baseplate with a plurality of lower guides and a
plurality of fasteners to removably secure the anti-rattle assembly
to the plurality of fastener positions within the rattle aperture
of the buttstock body, a pressure plate with one or more ridges to
engage the one or more rail surfaces, and a plurality of upper
guides, and a plurality of biasing members wherein the pressure
plate is vertically aligned with the baseplate and the plurality of
biasing members are coupled between the plurality of upper guides
and the plurality of lower guides, and bias the one or more ridges
against the one or more rail surfaces.
14. The anti-rattle assembly of claim 13, wherein the buttstock
body further comprises one or more upper stops and wherein the
pressure plate comprises one or more lower stops that engage the
one or more upper stops to restrict a pressure of the one or more
ridges against the one or more rail surfaces.
15. The anti-rattle assembly of claim 13, wherein the plurality of
fasteners include at least one of the following, a barb fastener, a
clip fastener, a rivet, a screw, a bolt and nut, an expansion bolt,
a cantilever hook, a spring toggle, a turnbuckle, a pine in hole, a
wedge in slot, a trap, a snap, a ball and socket, a cantilever
spring, a crush rib, welding, brazing, solvent bonding, Velcro, a
crimp, or a seam, and wherein the plurality of fastener positions
include at least one of the following, an fastener aperture
operable to receive the plurality of fasteners or a solid
blank.
16. The anti-rattle assembly of claim 13, wherein the plurality of
biasing members include at least one of the following, a spring, a
compressible foam, a compressible gel, or a fluid.
17. The anti-rattle assembly of claim 13, wherein the baseplate
further comprises a plate aperture to allow the locking pin to
slideably couple with the baseplate.
18. The anti-rattle assembly of claim 17, wherein the baseplate
further comprises a lower pin biasing guide for the pin biasing
spring, the pin biasing spring applying a biasing for on the
locking pin.
19. The anti-rattle assembly of claim 13, wherein the baseplate is
integral with the lever.
Description
TECHNICAL FIELD
[0001] The invention relates generally to buttstocks for attachment
to firearms, and more particularly to a buttstock assembly that has
an improved slide lock mechanism which provides an anti-rattle
assembly.
BACKGROUND
[0002] For several military applications and/or operational groups,
weapons may need to be collapsible for ease of transportation to a
field venue, and then easily assembled in the field. For example,
rifles are frequently designed to be collapsible. One typical
portion of a collapsible rifle assembly is the buttstock that forms
the aft-most part of the assembled rifle, which is received and
covers a recoil absorption appendage, or "receiver extension." In
general, modern conventional buttstocks are ergonomic since the
buttstock forms the interface with the user's shoulder area, and
adjustable along the receiver extension to further form fit the
rifle to the user. One manner in which modern conventional
buttstocks are made adjustable is via a slide lock mechanism, which
provides a biasing pin that fits into a retaining feature, such as
a pin seat or hole, provided along the receiver extension. A number
of such pin seats or holes are so provided by the receiver
extension to provide multiple adjustment points which are used to
either lengthen or shorten the rifle as a user may desire.
SUMMARY
[0003] In one embodiment, an apparatus for an anti-rattle assembly
for a collapsible buttstock for a firearm may include a baseplate
with a plurality of lower guides and a plurality of fasteners
wherein the plurality of fasteners removably secure the anti-rattle
assembly to a plurality of fastener positions of a buttstock body.
The anti-rattle assembly may further include a pressure plate with
one or more ridges to engage one or more rail surfaces of a
receiver extension and a plurality of upper guides and a plurality
of biasing members wherein the pressure plate is vertically aligned
with the baseplate and the plurality of biasing members are coupled
between the upper guides and the lower guides and bias the one or
more ridges against the one or more rail surfaces. The anti-rattle
assembly restricts the movement of the receiver extension in a
tubular aperture of the buttstock body.
[0004] In another embodiment, an apparatus for a collapsible
buttstock assembly may include a receiver extension, a buttstock
body, and an anti-rattle assembly. The receiver extension may
include an outer an alignment rail extending longitudinally along
the receiver extension and comprising an elongated slot with a
plurality of cavities spaced apart at regular intervals and one or
more rail surfaces spanning a length of the alignment rail wherein
each rail surface is situated on either side of the plurality of
cavities. The buttstock body may include a body axis that runs
longitudinally from a first end to a second end, and a tubular
aperture with a tubular axis and a groove parallel with the tubular
axis and is situated along an outer tube wall of the tubular
aperture, the tubular axis is parallel to the body axis, and
wherein the tubular axis receives the receiver extension. The
buttstock body may further include a locking pin situated in a pin
aperture with a pin axis that orthogonally penetrates the groove
and wherein the locking pin in the extended position engages a
cavity of the plurality of cavities and restricts the movement of
the receiver extension, and a pin biasing spring that biases the
locking pin into the groove. The buttstock body may further include
a lever coupled to the locking pin wherein when the lever is
actuated in a first direction, the locking pin is in retracted
position and when the lever is in a resting state, the locking pin
is in an extended position, and a plurality of fastener positions
located around a perimeter wall of a rattle aperture.
[0005] In yet another embodiment, a method for reducing movement in
a collapsible buttstock may include applying pressure on a receiver
extension inserted into a tubular aperture of a buttstock body by
using the anti-rattle kit. The method of reducing movement may
further include aligning an upper tube portion of the receiver
extension with an upper body portion of the tubular aperture with
the applied pressure to reduce the movement of the buttstock body
in relation to the receiver extension, and maintaining the
alignment a tubular axis of the buttstock body with a firearm axis.
The anti-rattle kit may include a baseplate with a plurality of
lower guides and a plurality of fasteners wherein the plurality of
fasteners removably secure the anti-rattle assembly to a plurality
of fastener positions of the buttstock body, a pressure plate with
one or more ridges to engage one or more rail surfaces of the
receiver extension and a plurality of upper guides, and a plurality
of biasing members wherein the pressure plate is vertically aligned
with the baseplate and the plurality of biasing members are coupled
between the upper guides and the lower guides and bias the one or
more ridges against the one or more rail surfaces.
[0006] These and other features, aspects, and advantages of the
present invention will become better understood with reference to
the following description and the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The embodiments set forth in the drawings are illustrative
and exemplary in nature and not intended to limit the subject
matter defined by the claims. The following detailed description of
the illustrative embodiments can be understood when read in
conjunction with the following drawings, where like structure is
indicated with like reference numerals and in which:
[0008] FIG. 1 depicts a firearm with a collapsible buttstock
according to one or more embodiments shown and described
herein;
[0009] FIG. 2 depicts the receiver extension according to one or
more embodiments shown and described herein;
[0010] FIG. 3 depicts the components of an anti-rattle assembly
according to one or more embodiments shown and described
herein;
[0011] FIG. 4A depicts a right side view of the anti-rattle
assembly in relation to a buttstock body according to one or more
embodiments shown and described herein;
[0012] FIG. 4B depicts a front view of the anti-rattle assembly in
relation to a buttstock body according to one or more embodiments
shown and described herein;
[0013] FIG. 5A depicts a cross-section view taken along line 5A-5A
shown in FIG. 1, of the anti-rattle assembly within a rattle
aperture within the buttstock body according to one or more
embodiments shown and described herein;
[0014] FIG. 5B depicts a close-up section view shown in FIG. 5A, of
the anti-rattle assembly within a rattle aperture within the
buttstock body according to one or more embodiments shown and
described herein; and
[0015] FIG. 5C depicts a cross-section view taken along section
line 5B-5B shown in FIG. 1, of the anti-rattle assembly within a
rattle aperture within the buttstock body according to one or more
embodiments shown and described herein.
DETAILED DESCRIPTION
[0016] An anti-rattle assembly may be used in any type of
collapsible firearm stock to reduce the play between a receiver
extension of the firearm and a buttstock assembly that is slideably
coupled to the receiver extension. The anti-rattle assembly may be
mounted to the buttstock assembly and apply pressure to the
receiver extension to reduce and/or eliminate any freedom of
movement between the receiver extension and the buttstock assembly.
The reduction and/or elimination of movement between the receiver
extension and the buttstock assembly will reduce and/or eliminate
noise from contact between the receiver extension and the buttstock
assembly when the firearm is not under tension (e.g. not shouldered
and/or in preparation to fire the firearm). In other words, when
the firearm is being carried and/or moved, a noise or a rattle may
emanate from contact between the receiver extension and buttstock
assembly. In the field, such unwanted noise can be to a user's
disadvantage by disclosing presence and/or position of the user to
an adversary. Alternatively, when the firearm is under tension,
(e.g. the firearm is shouldered) the freedom of movement between
the receiver extension and buttstock assembly may affect a proper
sight picture with a target. In other words, the gaps or space
between the receiver extension and the buttstock may allow for the
collapsible firearm stock to bend and/or deflect at an interface
between the receiver extension and the buttstock assembly thereby
allowing for an improper alignment of a user's line of sight with
the sights on the firearm for a proper sight picture. As such, it
is to be understood that the particular embodiment shown and
described herein is merely one example of a suitable firearm and
buttstock assembly, and that a firearm and/or buttstock assembly of
any other type, kind, configuration, construction and/or
arrangement in accordance with the subject matter of the present
disclosure could alternately be used.
[0017] Referring now to FIG. 1, a firearm 100 is shown with a
collapsible buttstock 105. The collapsible buttstock 105 may have a
buttstock assembly 110 and a receiver extension 115. The receiver
extension 115 may slideably couple with the buttstock assembly 110.
In other words, the receiver extension 115 may be coupled with the
buttstock assembly 110 to allow the buttstock assembly 110 to
expand and contract like a telescope in relation to the receiver
extension 115. The receiver extension 115 may have an upper tube
portion 125 that is opposite an alignment rail 200 on the outer
surface 205 (FIG. 2). The buttstock assembly may be removably
secured at one or more telescoping positions in relation to an aft
end 120 of the firearm 100.
[0018] FIG. 2 depicts the receiver extension 115. The receiver
extension 115 may have a length L that may vary depending on the
configuration of the collapsible buttstock 105. The receiver
extension 115 may include the alignment rail 200 that extends
longitudinally along the length L of the receiver extension 115.
The alignment rail 200 projects radially outwardly from an outer
surface 205 and has a somewhat rectangular shaped cross section. An
elongated slot 210 is formed into the alignment rail 200 and may
include a plurality of cavities 215 provided within the elongated
slot 210. The plurality of cavities 215 are shown extending
inwardly into the alignment rail 200 and may be disposed in a
longitudinally-spaced relation to one another along a length C of
the elongated slot 210. The plurality of cavities may be spaced
apart at regular intervals and may correspond to one or more
telescoping positions. The alignment rail 200 may include one or
more rail surfaces 220. In the embodiment shown, the one or more
rail surfaces 220 may include a first rail surface 220a and a
second rail surface 220b. In another embodiment, the one or more
rail surfaces 220 may include the first rail surface 220a and the
second rail surface 220b in addition to one or more intermediate
rail surfaces that may be situated between the plurality of
cavities 215. The intermediate rail surfaces may be of the same
height as the first rail surface 220a and the second rail surface
220b and may couple the first rail surface 220a to the second rail
surface 220b between the plurality of cavities 215.
[0019] As stated above, the receiver extension 115 may be
configured for any length L. With the variation in the length L,
the number of the plurality of cavities 215 may also be varied
based on the application of the collapsible buttstock 105 (FIG. 1).
The number of telescoping positions as discussed above depends on
the number of the plurality of cavities. In one example, the
plurality of cavities 215 may be as few as two cavities. In another
example, the plurality of cavities 215 may be as numerous as twenty
cavities. In another embodiment, the plurality of cavities 215 may
be as few as four cavities and as numerous as nine cavities. For a
given length L, the plurality of cavities 215 may depend on a size
and shape of a locking pin 405, which is best shown in FIG. 4A. The
length L of the receiver extension 115 may be a standard length;
however the locking pin 405 may be smaller than the standard size
and shape. This may allow for more plurality of cavities 215 along
the length L and allow for more telescoping positions.
[0020] The receiver extension 115 may be used to house a recoil
assembly (not shown) to allow for operation of the firearm 100. The
recoil assembly may include an action spring (not shown) and a
buffer assembly (not shown). The receiver extension 115 may be
coupled to a firearm body 225 by welding, adhesives, twist lock, or
a nut and bolt. In one embodiment, the receiver extension 115 may
include a threaded body at one end of the outer surface 205 and the
firearm body 225 may include a nut assembly. The threaded body of
the receiver extension 115 may threadably couple with the nut
assembly of the firearm body 225 and restrict the receiver
extension 115 from rotating in relation to the firearm body 225. In
another embodiment, the receiver extension 115 may also be a
buttstock mount (not shown) that does not serve to house the recoil
assembly. The buttstock mount may be coupled to the firearm body
225 and may allow the buttstock assembly 110 to be slideably couple
with the firearm 100. The buttstock mount may mimic the features of
the receiver extension 115 as shown in FIG. 2.
[0021] FIG. 3 depicts the components of the anti-rattle assembly
300. A baseplate 305 may include a plurality of lower guides 310,
and a plurality of fasteners 320. The plurality of lower guides 310
may be a vertical structure designed to capture and retain a bottom
biasing portion 330, respectively, of a respective biasing member
325. The plurality of fasteners 320 may be used to secure the
baseplate 305 to a buttstock body 400 as shown in FIG. 5. Each of
the biasing members 325 may be a spring, a compressible foam, a
compressible gel, and a compressible fluid. In some embodiments,
the baseplate 305 may include a plate aperture 315 to allow the
locking pin 405 (best shown by FIG. 4A) to pass through the
baseplate 305 unimpeded. In this embodiment, the baseplate 305 may
serve as a lower pin biasing guide for a pin biasing spring 410.
This would allow the pin biasing spring 410 to provide a biasing
force on the locking pin 405 in an upward direction until the
locking spring is acted on by a lever 450 as described below.
[0022] A pressure plate 340 may be situated vertically above the
baseplate 305 as depicted by FIG. 3 along vertical axis V. The
pressure plate 340 may include one or more ridges 345a and 345b,
and a plurality of upper guides (not shown). The one or more ridges
345a and 345b are configured to contact under a biasing force from
the biasing members 325, the one or more rail surfaces 220a and
220b, respectively, of the receiver extension 115 of FIG. 2. The
plurality of upper guides may be vertically aligned with the
plurality of lower guides 310, and may be operable to capture and
retain an upper biasing portion 355 of the biasing members 325. The
lower guides 310 and the upper guides may be operable to ensure
that the biasing members 325 remain in an upright and/or vertical
position. Each of the biasing members 325 provides a biasing force
between the baseplate 305 and the pressure plate 340. As explained
below, the baseplate 305 may be coupled to the buttstock body 400
in one embodiment. The biasing force applies pressure along the
vertical axis V to the pressure plate 340 and in turn, applies
pressure to the one or more rail surfaces 220a, 220b through the
one or more ridges 345a, 345b. The biasing force, or pressure,
applied to the receiver extension 115 creates a contact surface
between the upper tube portion 125 of the receiver extension 115
and an upper body portion 415 of a tubular aperture 420 (best shown
by FIG. 4B). The contact surface may be of any length to reduce or
eliminate movement between the upper tube portion 125 and the
receiver extension 115. The biasing force is operable to reduce the
movement of the buttstock body 400 in relation to the receiver
extension 115. The contact surface allows for the alignment of the
upper tube portion 125 of the receiver extension 115 with an upper
tube portion 125 of the tubular aperture with the applied pressure
to reduce the movement of the buttstock body in relation to the
receiver extension 115 and to maintain the alignment a tubular axis
of the buttstock body 400 with a firearm axis F of the firearm 100
of FIG. 1. By maintaining the alignment of the buttstock body 400
with the firearm 100, a user is able to maintain a sight picture
and a cheek weld with the collapsible buttstock 105 with the need
to readjust because of a shift of the buttstock body 400 in
relation to the firearm 100.
[0023] If the alignment rail 200 has the intermediate rail surfaces
as described above, the one or more ridges 345a, 345b of the
pressure plate 340 may include an intermediate ridge to contact and
apply a biasing force or pressure to the receiver extension 115.
The intermediate ridge may span the distance between the one or
more ridges 345a, 345b to contact the intermediate rail surfaces or
the intermediate ridge may be a solid surface running the length of
the one or more ridges. If the intermediate ridge is solid, a
second plate aperture may be present and aligns with the plate
aperture 315 of the base plate to allow the locking pin 405 to
slideably couple with the pressure plate 340.
[0024] A plurality of fastener apertures 360 may be included in the
pressure plate 340 to allow for the movement of the pressure plate
340 along the vertical axis V without interference from the
plurality of fasteners 320 being coupled to the buttstock body 400.
Referring to FIG. 4A, when the baseplate 305 is coupled to the
buttstock body 400 (i.e. the plurality of fasteners 320 coupled to
a plurality of fastener positions 460 (same on opposite,
non-depicted side of buttstock body 400), respectively, the
plurality of fasteners 320 may restrict the movement of the
pressure plate 340 along the vertical axis V. The plurality of
fastener apertures 360 may allow for the movement of the pressure
plate 340 without interference from the plurality of fasteners
320.
[0025] The pressure plate 340 may also include one or more lower
stops 370. The buttstock body 400 may include one or more upper
stops 500 of FIG. 5A. When the one or more lower stops 370 and the
one or more upper stops 500 are making contact, the pressure plate
340 is at an uppermost position along the vertical axis V. For
example, when the receiver extension 115 is slideably coupled with
the tubular aperture 420, the one or more rail surfaces 220 of the
alignment rail 200 exert a downward force in the direction of the
vertical axis V on the pressure plate 340. While the receiver
extension 115 is slideably coupled with the tubular aperture 420 of
the buttstock body 400, the one or more upper stops 500 are not in
contact with the one or more lower stops 370 i.e., a gap 590 exist
between the lower and upper stops 370, 500 as depicted by FIG. 5C.
When the receiver extension 115 is removed from the tubular
aperture 420 of the buttstock body 400, the one or more upper stops
500 are in contact with the one or more lower stops 370 due to the
biasing force apply by biasing members 325 (FIG. 5A) to move the
one or more lower stops 370 into contact with the one or more upper
sops 500.
[0026] FIGS. 4A, 4B, 5A, 5B and 5C depict the anti-rattle assembly
300 in relation to the buttstock body 400. As depicted by FIG. 4A,
the buttstock body 400 may include a body axis B that runs
longitudinally from a first end 435 to a second end 440 of the
buttstock body 400. The tubular aperture 420 may include a tubular
axis T that may be parallel to the body axis B and a groove 425,
which the groove 425 is depicted in FIG. 4B. The groove 425 is
operable to receive the alignment rail 200 of the receiver
extension 115. The groove 425 may be along an outer tube wall 445
of the tubular aperture 420. The groove 425 may be at the opposite
from the upper body portion 415 along the outer tube wall 445.
[0027] The locking pin 405 may be operable to removably secure the
receiver extension 115 in relation to the buttstock body 400. The
locking pin 405 may include a pin axis P that is orthogonal to the
tubular axis T as depicted in FIG. 4A. The pin biasing spring 410
may provide a biasing force in an upward direction towards the
groove 425 so that the locking pin 405 removable couples with the
plurality of cavities 215 of the receiver extension 115. When the
locking pin 405 is in an extended position, the locking pin 405 may
be removably coupled with a cavity of the plurality of cavities
215. The coupling of the locking pin 405 and a cavity of the
plurality of cavities 215 may restrict the movement of the receiver
extension 115, as depicted in FIGS. 5A, 5B and 5C.
[0028] A lever 450 may be hingedly coupled to the locking pin 405
and may provide a lever force to retract the locking pin 405 from
the cavity of the one or more cavities 215. A retracted position is
defined when the lever 450 retracts the locking pin 405 from the
cavity of the plurality of cavities 215. The retracted position
allows the collapsible buttstock 105 to either be moved to another
telescoping position or to allow the receiver extension 115 to be
removed from the tubular aperture 420 of the collapsible buttstock
105. The pin biasing spring 410 biasing force may provide enough
tension between the locking pin 405 and the lever 450 to ensure
that the lever 450 does not move or slide when in a resting
position. The pin biasing spring 410 also provides enough biasing
force for the locking pin 405 to maintain the extended position.
The resting position of the lever 450 may be when the locking pin
405 is in the extended position as it does not require any
actuation to maintain the extended position. When the lever 450 is
actuated in a first direction D (i.e. when a force is placed on the
lever 450 in the first direction D as depicted by FIG. 4A), the
locking pin 405 is placed in the retracted position. The retracted
position allows the receiver extension 115 to be moved between
cavities, i.e. telescoping position. However, the locking pin 405
is not retracted enough to remove it from the elongated slot 210 of
FIG. 2. Therefore, the receiver extension 115 may still be captured
by the buttstock body 400. Alternatively, when the lever 450 is
actuated in a second direction E as shown in FIG. 4A, the locking
pin is placed in a release position. The release position enables
the receiver extension 115 to be removed from the tubular aperture
420.
[0029] In another embodiment, a retaining ring 455 may be coupled
to the locking pin 405 to capture and secure the lever 450. In the
illustrated embodiment, the lever 450 may be slideably coupled to
the locking pin 405. The retaining ring 455 may be threaded onto
the locking pin 405 to secure and couple the retaining ring 455 to
the locking pin 405. In other embodiments, any suitable means for
coupling the lever 450 to locking pin 405, such as gluing, welding,
etc., may be used.
[0030] The plurality of fastener positions 460 (FIG. 4A) may be
located around a perimeter wall 465 of a rattle aperture 470. The
anti-rattle assembly 300 may be placed within the rattle aperture
470 of the buttstock body 400. The plurality of fasteners 320 of
the baseplate 305 removably secure with the plurality of fastener
positions 460 to secure the anti-rattle assembly 300 within the
buttstock body 400. The one or more ridges 345 may protrude from
the rattle aperture 470 into the groove 425 of the tubular aperture
420. This may allow for the pressure plate 340 to apply the biasing
force from biasing members 325 to the receiver extension 115, via
the one or more ridges 345a, 345b contacting the one or more rail
surfaces 220a and 220b, respectively, of the receiver extension 115
(FIG. 2), to stop and/or restrict the movement of the receiver
extension 115 within the tubular aperture 420.
[0031] FIGS. 5A, 5B and 5C depict the anti-rattle assembly 300
within the rattle aperture 470. As described above, in one
embodiment, the plurality of fasteners 320 are coupled with the
plurality of fastener positions 460 to secure the baseplate 305 to
the buttstock body 400. The plurality of fasteners 320 may include
at least one of the following, a barb fastener, a clip fastener, a
rivet, a screw, a bolt and nut, an expansion bolt, a cantilever
hook, a spring toggle, a turnbuckle, a pine in hole, a wedge in
slot, a trap, a snap, a ball and socket, a cantilever spring, a
crush rib, welding, brazing, solvent bonding, Velcro, a crimp, and
a seam. The plurality of fastener apertures 360 include at one of
the following fastener aperture operable to receive the fastener
and a solid blank. The biasing members 325 may be captured and
secured between the baseplate 305 and the pressure plate 340. The
locking pin 405 is shown protruding into the a cavity of the
plurality of cavities 215 while the locking pin 405 is in the
extended position (e.g. resting position). The receiver extension
115 of FIG. 2 is shown inserted into the tubular aperture 420.
[0032] When the receiver extension 115 is inserted into the tubular
aperture 420, the pressure plate 340 may be directed downward along
the vertical axis V (FIG. 3) and partially or completely compress
the biasing members 325. A ramp 520 as shown in FIGS. 4A and 5B,
may be operable to move the pressure plate 340 in the downward
direction as the receiver extension 115 is inserted into the
tubular aperture 420. In other words, as the receiver extension 115
engages the ramp 520 of the pressure plate 340, the pressure plate
340 is directed down along vertical axis V of FIG. 3. A stop gap
510 may be created when the receiver extension 115 is inserted into
the tubular aperture 420. The stop gap 510 is the space between the
one or more upper stops 500 and the one or more lower stops 370
when the receiver extension 115 is inserted into the tubular
aperture 420. Alternatively, with the receiver extension 115
removed from the tubular aperture 420, the one or more ridges 345
may fully protrude into the groove 425. The one or more upper stops
500 are in contact with the one or more lower stops 370 when the
receiver extension 115 is removed from the tubular aperture 420 of
the buttstock body 400. The contact between the one or more upper
stops 500 and the one or more lower stops 370 may also serve to
restrict the amount of pressure the biasing member 325 may exert on
the receiver extension 115 when the receiver extension 115 is
slideably coupled with the tubular aperture 420.
[0033] In another embodiment, the lever 450 may include features of
the baseplate 305 to include the plurality of lower guides 310 and
the plurality of fasteners to removably secure the anti-rattle
assembly to the plurality of fastener positions within the rattle
aperture of the buttstock body 400. In other words, the baseplate
305 is integral with the lever 450. The plate aperture 315 of the
baseplate 305 may be disposed on the lever 450. The second plate
aperture (not shown) of the pressure plate 340 may align with the
plate aperture 315 of the lever 450 to define a through bore. It is
to be appreciated that placing the locking pin 405 in the retracted
position and/or the release position, lessens the biasing force
applied by biasing members 325. In the retracted position, the
lever 450 moved away from the buttstock body 400 and hence the
pressure applied by the pressure plate 340 to the one or more rail
surfaces 220a, 220b through the one or more ridges 345a, 345b, may
be reduced as the biasing members 325 extend and/or relax. In other
words, this lessening of the biasing force, and hence contact
pressure, results from applying a force to the lever 450 in the
first direction D, which creates spacing that likewise permits
plurality of lower guides 310 to move away relatively from the
pressure plate 340 via expansion of the biasing members 325a, 325b,
basically simultaneously, when the locking pin 405 is place in the
retracted position. This reduction of the pressure applied by the
pressure plate 340 to the one or more rail surfaces 220a, 220b, is
such that the pressure plate 340 will not hinder the movement of
the collapsible buttstock 105 along the receiver extension 115
Likewise, when the locking pin 405 is in the extended position,
i.e., normal resting position, the lever 450 closes the spacing
between the plurality of lower guides 310 and the pressure plate
340, via pin biasing spring 410 providing a biasing force on the
locking pin 405 in the upward direction and which results in the
locking pin 405 and the pressure plate 340 engaging in at least two
different places and at least under two different biasing forces,
via biasing members 410, 325, the receiver extension 115 as is
depicted by FIG. 5A.
[0034] It is noted that the terms "substantially" and "about" may
be utilized herein to represent the inherent degree of uncertainty
that may be attributed to any quantitative comparison, value,
measurement, or other representation. These terms are also utilized
herein to represent the degree by which a quantitative
representation may vary from a stated reference without resulting
in a change in the basic function of the subject matter at
issue.
[0035] Certain terminology is used in the disclosure for
convenience only and is not limiting. The words "left", "right",
"front", "back", "top", "bottom", "upper", and "lower", "vertical",
and "horizontal" designate directions in the drawings to which
reference is made. The terminology includes the words noted above
as well as derivatives thereof and words of similar import.
[0036] While particular embodiments have been illustrated and
described herein, it should be understood that various other
changes and modifications may be made without departing from the
spirit and scope of the claimed subject matter. Moreover, although
various aspects of the claimed subject matter have been described
herein, such aspects need not be utilized in combination. It is
therefore intended that the appended claims cover all such changes
and modifications that are within the scope of the claimed subject
matter.
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