Information
-
Patent Grant
-
6487805
-
Patent Number
6,487,805
-
Date Filed
Friday, May 19, 200024 years ago
-
Date Issued
Tuesday, December 3, 200221 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Carone; Michael J.
- Thomson; M
Agents
- Woodard, Emhardt, Nauhgton, Moriarty & McNett
-
CPC
-
US Classifications
Field of Search
-
International Classifications
-
Abstract
A firearm assembly includes a stock and an action secured to the stock. The action includes a receiver, a barrel, and a recoil lug that is positionable adjacent a bearing seat of the stock. Various fastener assemblies are provided to assemble the action to the stock with the recoil lug firmly seated against the bearing seat, thus providing longitudinal and torsional stability to the firearm assembly. There is further provided a stock having a bedding portion that includes a surface forming a channel in the bedding block. Either the channel or the receiver includes a number of ribs extending therefrom that support the receiver in the bedding channel when the action is secured to the stock. There is also provided a stock having an action mounting insert. A compressible member is provided between the action mounting insert and the stock.
Description
BACKGROUND OF THE INVENTION
The present invention relates generally to firearms, and more particularly to a firearm assembly.
It is often necessary or desirous to disassemble and reassemble the firearm's components in order to, for example, clean the firearm, replace or upgrade components of the firearm, inspect the firearm, or store the firearm. One drawback to disassembling a firearm, particularly with rifles, is that it is difficult to reassemble so that the precision and accuracy of the firearm's shot group is maintained. This is because the component parts of the firearm do not re-seat in the same position that was occupied before disassembly, resulting in movement of the shot group placement and increases in shot group size. Thus, it is necessary to re-zero the rifle after reassembly.
Another drawback with existing methods and devices for assembling firearm is that these techniques do not adequately address the problem of the firearm components shifting relative to one another during firing of the firearm. In order for a firearm to maintain its accuracy, vertical and horizontal (transverse to the barrel,) longitudinal (along the barrel,) and torsional stability of the action relative to the stock is necessary. If such stability is not provided, the action and stock can shift relative to one another due to recoil upon firing the firearm, thus degrading accuracy and precision of the shot group.
Vertical and horizontal stability can be achieved by action screws supplying a sufficient vertical force between the action and the stock to establish and maintain sufficient horizontal and vertical securing forces. However, the use of such action screws to obtain and maintain sufficient longitudinal stability is difficult due to high recoil forces that tend to cause the action to rebound off of the stock when the firearm is fired. Oftentimes, the firearm must be fired several times in order for the recoil lug of the action to settle into its seat.
Torsional loads created by the projectile accelerating down the rifled barrel must also be transmitted from the action to the stock without rotational slippage of the action with respect to the stock. Actions having round bottom receivers, while providing good horizontal stability, do not provide adequate torsional stability, resulting in slippage of the receiver with respect to the stock. Actions with flat bottom receivers better provide torsional stability, but horizontal stability is reduced when compared with round bottom receivers.
One technique for assembling a rifle uses a liquified plastic bedding material that is applied between the stock and action. A release agent is applied to the action to prevent the action from bonding to the cured plastic. The liquified plastic is then applied to the stock, and the action is then placed into position on the stock. After the liquified plastic bedding has set, the action and stock are finally assembled by securely tightening the action screws to draw the action into firm vertical contact with the stock. Despite the intimate fit obtained in this technique, it is often necessary to fire several rounds in order to bring the recoil transmitting surfaces into a relationship that adequately resists longitudinal and torsional loading.
A further drawback with existing firearms is that the firearm shot group typically shifts when fired from different mounting conditions. If the firearm is zeroed from a soft rest, the firearm will exhibit a certain zero. When the firearm is subsequently fired from a hard rest, the zero of the shot group will move due to the differing reactions of the barrel and action when the firearm is fired from different supports.
What is needed therefore is a firearm assembly that allows the firearm to be disassembled and re-assembled in an efficient and repeatable manner while maintaining the precision and accuracy of the firearm's shot group. There is also needed a firearm assembly that provides adequate longitudinal and torsional stability between the firearm components when the firearm is assembled. There is further needed a firearm assembly that provides an accurate and precise shot group without a requirement that several rounds be fired after the firearm is assembled. There is additionally needed a firearm assembly that will provide a precise and accurate shot group whether the firearm is fired from a soft or hard rest. The present invention is directed towards meeting these needs, among others.
SUMMARY OF THE INVENTION
According to one aspect of the invention, a firearm assembly is provided that includes a stock having an action mounting portion with a bearing seat. The firearm assembly further includes a barrel and a receiver coupled to the rearward end of the barrel. A recoil lug is positioned between the receiver and the barrel. The recoil lug has a portion that extends downwardly from the receiver. The downwardly extending portion of the recoil lug has a rearward face positionable adjacent the bearing seat of the stock when the receiver is placed on the action mounting portion of the stock. A fastener assembly contacts a forward face of the recoil lug and applies a rearwardly directed pre-load against the forward face of the recoil lug to secure the recoil lug against the bearing seat.
According to another aspect of the invention, a firearm assembly includes a barrel and a receiver coupled to the rearward end of the barrel. The firearm assembly also includes a stock with an action mounting portion that includes a bedding block with an upper surface forming a bedding channel having opposite sides extending in the direction of the longitudinal axis of the firearm assembly. A pair of ribs each extend along one of the sides of the channel and support the receiver in the bedding channel when the receiver is mounted on said stock.
In one embodiment, the pair of ribs are formed on the upper surface of the bedding block. In a further embodiment, the bedding block also includes a pair of lower ribs each extending from the upper surface along a side of the bedding channel. The receiver is initially supported in the bedding channel by the pair of ribs such that a gap is formed between the receiver and the pair of lower ribs. A bedding fastener extends through an opening in the bedding block and into a passage formed in the receiver. The bedding fastener is operable to draw the receiver into contact with the pair of lower ribs in the bedding channel.
According to another aspect of the invention, a firearm assembly includes a stock with a receptacle formed therein. An action mounting insert coupled to an action is positionable in the receptacle of the stock. A compressible member is placed in the receptacle between the action mounting insert and the stock to isolate the action from the rest support of the firearm assembly. In a preferred form, the compressible member is elastic.
Various methods for assembling a firearm are also provided.
These and other forms, embodiments, aspects, features, objects and advantages of the invention will be apparent from the following description of the preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a side elevational view of a firearm to which the present invention has application.
FIG. 2
is an exploded partial sectional side elevational view of the firearm of
FIG. 1
according to one embodiment firearm assembly of the present invention.
FIG. 3
is an exploded partial sectional side elevational view of a portion of the firearm of
FIG. 1
according to another embodiment firearm assembly of the present invention.
FIG. 4
is the view of
FIG. 3
with a portion of the firearm in a partially assembled condition.
FIG. 5
is an enlarged view of a portion of the firearm of FIG.
2
.
FIG. 6
is the portion of the firearm of
FIG. 5
in an assembled condition.
FIG. 7
is the portion of the firearm of
FIG. 6
according to a further embodiment firearm assembly of the present invention.
FIG. 8
is the portion of the firearm of
FIG. 6
according to yet another embodiment firearm assembly of the present invention.
FIG. 9
is the portion of the firearm of
FIG. 6
according to a further embodiment firearm assembly of the present invention.
FIG. 10
is the firearm of
FIG. 2
according to another embodiment firearm assembly of the present invention.
FIG.
10
(
a
) is a portion of the firearm assembly of
FIG. 10
in an assembled condition.
FIG. 11
is a cross sectional view taken through line
11
—
11
of
FIG. 6
of an unsecured firearm assembly according to another embodiment of the present invention having application with the firearm of FIG.
1
.
FIGS.
11
(
a
) and
11
(
b
) are each enlarged detail views of a portion of FIG.
11
.
FIG. 12
is the cross sectional view of
FIG. 11
after the firearm assembly is secured.
FIGS.
12
(
a
) and
12
(
b
) are each enlarged detail views of a portion of FIG.
12
.
FIG. 13
is a cross sectional view of another embodiment firearm assembly according to the present invention having application with the firearm of FIG.
1
.
FIG.
13
(
a
) is an enlarged detail view of a portion of FIG.
13
.
FIG. 14
is the cross sectional view of
FIG. 13
after the firearm assembly is secured.
FIG. 15
is a cross sectional view of another embodiment unsecured firearm assembly according to the present invention having application with the firearm of FIG.
1
.
FIG. 16
is a cross sectional view of a further embodiment secured firearm assembly according to the present invention having application with the firearm of FIG.
1
.
FIG. 17
is a top plan view of another embodiment firearm assembly according to the present invention having application with the firearm of FIG.
1
.
FIG. 18
is a cross sectional view taken along line
18
—
18
of FIG.
17
.
FIG. 19
is a partial cross sectional, partial elevational view taken along line
19
—
19
of FIG.
18
.
DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS
For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Any such alterations and further modifications in the illustrated devices, and such further applications of the principles of the invention as illustrated therein are contemplated as would normally occur to one skilled in the art to which the invention relates.
The present invention relates to methods and apparatus for assembling a firearm action group to a stock or action mounting portion secured to a stock. The firearm assembly provides a stable and secure assembly that maintains rigid contact and resists movement between the action group and the stock in each of the vertical, horizontal, longitudinal and torsional directions. Furthermore, the invention permits the action group to be positioned on the stock when the firearm is reassembled so that accuracy and precision of the reassembled firearm is maintained.
Referring now to
FIG. 1
, there is illustrated a firearm
15
to which the present invention has application. Firearm
15
is illustrated generally as a 0.30 caliber bolt action rifle. However, it should be understood that present invention has application with many types of firearms including, for example, non-bolt action rifles or any other firearm in which the action is secured to the stock. Firearm
15
includes a mounting platform or stock
20
and an action group
50
mounted on stock
20
. A handgrip
90
is secured to the bottom of action
50
. Firearm
15
further includes a scope
94
secured to the top of action
50
, and a magazine
92
positioned in a receptacle (not shown) formed in the bottom of action
50
.
Referring now further to
FIG. 2
, action
50
includes barrel
52
extending forwardly from a receiver
54
. A recoil lug
56
is positioned between barrel
52
and receiver
54
. Firearm
15
has a longitudinal axis L extending through action group
50
along the centerline of barrel
52
. As used herein, upwardly, downwardly and/or vertically generally refer to the directions indicated by arrow V when the firearm is positioned for firing. Horizontally generally refers to the direction transverse to each of the directions indicated by arrow V and axis L. Forwardly refers generally to the direction the firearm is pointed and the rearwardly generally refers to the direction towards the shooter's body.
Stock
20
includes a fore stock
22
, a butt stock
24
, and an action mounting portion
26
therebetween. Fore stock
22
includes sidewalls
23
and a bottom member
25
extending between sidewalls
23
. Action mounting portion
26
includes a rearward bedding portion
27
and a forward bedding portion
28
. In this embodiment, forward bedding portion
28
and rearward bedding portion
27
are integrally formed with stock
20
via application machining a single piece of metal. However, forward bedding portion
28
and rearward bedding portion
27
can also be separate components that are secured to stock
20
. Action
50
and handgrip
90
are secured to rearward portion
27
via rear fastener
29
, and action
50
is secured to forward bedding portion
28
via bedding fastener
36
. As explained further below, a fastener assembly
80
is provided to secure recoil lug
56
of action
50
to action mounting portion
26
or an action mounting insert
26
′.
Referring now to
FIGS. 3 and 4
, an alternate action mounting portion in the form of mounting insert
26
′ is illustrated as a component that is positionable in a bedding block receptacle
21
′ of stock
20
′ . Except as otherwise described, stock
20
′ is similar to stock
20
, and like components are referenced with the same reference numerals. Action mounting insert
26
′ has a configuration substantially the same as action mounting portion
26
, and includes a forward bedding portion
28
′ to which action
50
is secured via bedding fastener
36
and a rearward bedding portion
27
′ to which action
50
and handgrip
90
are secured via rear fastener
29
. Action mounting insert
26
′ is positionable in receptacle
21
′ and secured to stock
20
′ via a rigid epoxy adhesive or other fastening means known to those skilled in the art. Fastener assembly
80
is positionable between recoil lug
56
of action
50
and a forward block
40
′ of bedding portion
28
′ via wedge fastener
32
.
Referring now to
FIGS. 5 and 6
, there is illustrated an enlarged partial section, partial elevation view of action
50
, action mounting portion
26
and a first embodiment of fastener assembly
80
. The elements of
FIGS. 5 and 6
similar to those of
FIGS. 1-4
are similarly designated with the same reference numeral along with the sub-designation “a” to indicate reference to this embodiment of fastener assembly
80
. The details of fastener assembly
80
are described hereinbelow with reference to action mounting portion
26
of stock
20
; however, it should be understood that fastener assembly
80
can also be provided with action mounting insert
26
′ of stock
20
′.
Action mounting portion
26
includes a bedding block
38
a
, a forward block
40
a
, and a groove
42
a
between bedding block
38
a
and forward block
40
a
. A bearing seat
39
a
is provided on a forward face of bedding block
38
a
, and a cam surface
41
a
is provided on a rearward face of forward block
40
a
. Recoil lug
56
includes a downwardly extending portion
57
that is positionable in groove
42
a.
Fastener assembly
80
a
includes a wedge
81
a
that is positionable between recoil lug
56
of action
50
and cam surface
41
a
of action mounting portion
26
. Wedge
81
a
has an internal passage
84
a
extending at least partially therethrough that is threaded to mate with a threaded portion of a wedge fastener
32
a
. Wedge
81
a
further includes a forwardly facing inclined surface
82
a
obliquely oriented and transverse to longitudinal axis L. A contact surface
83
a
is opposite inclined surface
82
a
. Inclined surface
82
a
of wedge
81
a
slidingly contacts cam surface
41
a
and slides therealong as wedge fastener
32
a
is threaded into passage
84
a.
Action mounting portion
26
has a first opening
30
a
extending therethrough receiving wedge fastener
32
a
. Wedge fastener
32
a
is preferably a screw having at least a threaded end portion to threadingly engage passage
84
a
of wedge
81
a
. Also provided are one or more bedding block fasteners
36
a
received through a second opening
34
a
formed through bedding block
38
a
of action mounting portion
26
. Fastener
36
a
preferably has at least a threaded end portion that projects into a threaded receptacle
37
a
formed in action
54
.
As shown in
FIG. 6
, bedding block fastener
36
a
has been inserted through opening
34
a
and into receptacle
37
a
, and tightened to vertically secure action
50
in bearing contact with bedding block
38
a
. Wedge fastener
32
a
is inserted through opening
30
a
and into passage
84
a
of wedge
81
a
. Fastener
32
a
is threaded vertically in passage
84
a
to pull wedge
81
a
downwardly along cam surface
41
a
, as indicated by arrow D. This forces action
50
rearwardly, as indicated by arrow R, by pushing contact surface
83
a
against downwardly extending portion
57
, and pushing recoil lug
56
rearwardly into bearing contact with bearing seat
39
a
. In practice, the wedge fastener
32
a
and bedding fastener
36
a
are alternately tightened to uniformly increase the tightness of the connection between action
50
and action mounting portion
26
in both the vertical and longitudinal directions.
Rear fastener
29
and bedding block fastener
36
provide horizontal and vertical stability between action
50
and action mounting portion
26
or insert
26
′. Fastener assembly
80
provides longitudinal and torsional stability to the assembly of action
50
and action mounting portion
26
or insert
26
′ by applying a longitudinally directed pre-load that maintains recoil lug
56
in firm contact with bearing seat
39
. This longitudinal and torsional stability does not depend on the frictional resistance created by the vertical forces applied by fasteners
29
and
36
. It is contemplated that the longitudinally directed pre-load applied by fastener assembly
80
can be greater than the recoil load generated upon firing the firearm, preventing the action from rebounding or otherwise moving with respect to bearing seat
39
,
39
′ when the firearm is fired. It is further contemplated that fastener assembly
80
ensures that action
50
will be secured to action mounting portion
26
or insert
26
′ in the same longitudinal bearing relationship each time the firearm is assembled. Further, fasteners
29
and
36
need not be as tightly torqued as compared to firearms not employing fastener assembly
80
since frictional resistance is not required to provide longitudinal and torsional stability.
Referring now to
FIG. 7
, an alternate embodiment of fastener assembly
80
is provided. The elements of
FIG. 7
similar to those of
FIGS. 1-6
are similarly designated with the same reference numeral along with the sub-designation “b” to indicate correspondence to this embodiment of fastener assembly
80
. Fastener assembly
80
b
includes a wedge fastener
85
b
having a tapered end portion
86
b
. In the illustrated embodiment, end portion
86
b
has a truncated frusto-conical shape. Downwardly extending portion
57
of recoil lug
56
is positioned in groove
42
b
between bedding block
38
b
and forward block
40
b
. Wedge fastener
85
b
is threaded vertically into opening
35
b
so that end portion
86
b
contacts downwardly extending portion
57
of recoil lug
56
. As wedge fastener
85
b
is threaded vertically into opening
35
b
, end portion
86
b
rides along portion
57
, pushing and maintaining recoil lug
56
in firm contact against bearing surface
39
b
to provide longitudinal and torsional stability to the assembly of action
50
and action mounting portion
26
or insert
26
′.
Referring now to
FIG. 8
another embodiment of fastener assembly
80
is illustrated. The elements of
FIG. 8
similar to those of
FIGS. 1-6
are similarly designated with the same reference numeral along with the sub-designation “c” to indicate correspondence to this embodiment of fastener assembly
80
. In this embodiment, forward block
40
c
includes a rearwardly extending cantilevered arm
78
c
. A fulcrum
76
c
is provided in the form of a projection extending downwardly at the rearward end of cantilevered arm
78
c
. Fastener assembly
80
c
includes a lever
70
c
positionable in a notched portion
44
c
formed in the underside of forward block
40
c
. Lever
70
c
includes vertical arm
72
c
having rearward facing contact surface
75
c
positioned to contact downwardly extending portion
57
of recoil lug
56
. Lever
70
c
also includes longitudinal arm
73
c
having an upper surface
77
c
in contact with fulcrum
76
c
. A fastener bore
71
c
is formed through arm
73
c
and receives a fastener
74
c
therethrough that extends to a bore
79
c
formed in cantilevered arm
78
c
. Lever
70
c
is rotated or pivoted in a counterclockwise direction about fulcrum
76
c
by threading fastener
74
c
into bore
79
c
. As lever
70
c
is pivoted about fulcrum
76
c
, contact surface
75
c
pushes and maintains recoil lug
56
in firm contact with bearing surface
39
c
to provide longitudinal and torsional stability to the assembly of action
50
and action mounting portion
26
or insert
26
′.
Referring now to
FIG. 9
another embodiment of fastener assembly
80
is illustrated. The elements of
FIG. 9
similar to those of
FIGS. 1-6
are similarly designated with the same reference numeral along with the sub-designation “d” to indicate correspondence to this embodiment of fastener assembly
80
. In this embodiment of fastener assembly
80
d
, forward block
40
d
includes a notched portion
44
d
formed in the underside of forward block
40
d
. A rearward lug
43
d
is positioned rearwardly of notched portion
44
d
and includes an opening
45
d
extending longitudinally therethrough to receive a fastener
87
d
. Fastener
87
d
includes an end surface
88
d
contacting downwardly extending portion
57
of recoil lug
56
. Fastener
87
d
includes a head
89
d
that is accessible in notched portion
44
d
by a tool. Fastener
87
d
is threaded rearwardly into opening
45
d
to push and maintain recoil lug
56
in firm contact with bearing seat
39
d
to provide longitudinal and torsional stability to the assembly of action
50
and action mounting portion
26
or insert
26
′.
Referring now to
FIG. 10
another embodiment of fastener assembly
80
is illustrated. The elements of
FIG. 10
similar to those of
FIGS. 1-6
are similarly designated with the same reference numeral along with the sub-designation “e” to indicate correspondence to this embodiment of fastener assembly
80
. In this embodiment of fastener assembly
80
e
, adjacent rearward bedding portion
27
e
is a notched portion
31
e
formed in the top side of rearward bedding portion
27
e
and a rear lug
96
e
positioned forwardly of notched portion
3
l
e
. Rear lug
96
e
has a passage
97
e
formed longitudinally therethrough that receives a fastener
95
e
. A butt end portion
51
of action
50
includes a threaded bore
99
e
formed longitudinally therein to threadingly engage fastener
95
e
. Fastener
95
e
is positionable in notched portion
31
e
and through passage
97
e
for threaded engagement with bore
99
e
. As fastener
95
e
is threaded longitudinally into bore
99
e
, action
50
is drawn rearwardly, and downwardly extending portion
57
of recoil lug
56
is pulled into firm contact with bearing seat
39
e
to provide longitudinal and torsional stability to the assembly of action
50
and action mounting portion
26
or insert
26
′. When fastener
95
e
is tightened with recoil lug
56
and bearing seat
39
e
in close contact, there remains a gap between the butt end portion
51
and rear lug
96
e
as shown in FIG.
10
(
a
).
It is contemplated herein that each embodiment of fastener assembly
80
described above can be provided in a kit along with the necessary components for the action and stock to retrofit existing firearms in order to provide longitudinal and torsional stability between the action and stock.
Referring now to
FIGS. 11-16
, a further aspect of the present invention will now be described. It should be understood that the features described with respect to
FIGS. 11-16
can be provided either alone or in combination with fastener assembly
80
.
FIG. 11
is a cross sectional view taken through line
11
—
11
of FIG.
6
. Action
50
includes receiver
54
having an outer surface
59
and a substantially octagonal shape with an extended lower portion
55
. Receiver
54
has an inner bore
58
extending therethrough. Passage
37
is formed in lower portion
55
and extends from outer surface
59
upwardly towards bore
58
. Preferably, passage
37
is internally threaded to mate with a threaded end portion of bedding fastener
36
.
Action mounting portion
26
has bedding block
38
with opening
34
extending therethrough and alignable with passage
37
of action
50
. An upper surface on bedding block
38
forms a recessed truncated V-shaped bedding channel
60
that extends along the length of bedding block
38
. A pair of first upper ribs
62
a
,
62
b
are each positioned on a corresponding one of the opposite sides
64
a
,
64
b
of bedding channel
60
, and extend upwardly from the upper surface of bedding channel
60
and extend along the length of bedding channel
60
adjacent its upper end. A pair of second lower ribs
63
a
,
63
b
are positioned below upper ribs
62
a
,
62
b
and extend upwardly from the upper surface of bedding channel
60
and extend along the length of bedding channel
60
.
The interface between receiver
54
and channel
60
is such that when receiver
54
is initially positioned in channel
60
with bedding fastener
36
un-tightened, outer surface
59
rests upon upper ribs
62
a
,
62
b
as shown in FIG.
11
(
a
), forming an unsecured spacing between channel
60
and outer surface
59
indicated by d
1
. A gap
66
is formed between lower ribs
63
a
,
63
b
and outer surface
59
as shown in FIG.
11
(
b
). In
FIG. 12
, bedding fastener
36
is tightened by threading fastener
36
into passage
37
of receiver
54
. This draws receiver
54
downwardly into bedding channel
60
. Sufficient force is exerted via fastener
36
to deform the upper ribs
62
a
,
62
b
and bedding block
38
to close gap
66
as shown in FIG.
12
(
b
), providing continuous contact along the length of upper ribs
62
a
,
62
b
and lower ribs
63
a
,
63
b
. Bedding block
38
, upper ribs
62
a
,
62
b
and lower ribs
63
a
,
63
b
are preferably elastic to return to their original position when fastener
36
is unsecured. As shown in FIG.
12
(
a
), when gap
66
is closed the spacing between the surface of channel
60
and outer surface
59
is indicated by d
2
, which is less than spacing d
1
of FIG.
11
(
a
). Lower ribs
63
a
,
63
b
and upper ribs
62
a
,
62
b
thus provides horizontal, vertical, and torsional stability between action
50
and action mounting portion
26
or insert
26
′, and further provides a bedding location is repeatable each time the firearm is reassembled.
In an alternative form, receiver
54
can be initially supported on lower ribs
63
a
,
63
b
which are then deformed by tightening fastener
36
to provide contact between upper ribs
62
a
,
62
b
and outer surface
59
. In a further embodiment shown in
FIGS. 13-14
, mounting insert
26
′ includes upper ribs
62
a′
,
62
b′
and lower ribs
63
a′
,
63
b′
. Action
50
is secured in bedding channel
60
′ of mounting insert
26
′ via fastener
36
as described above with respect to
FIGS. 11-12
.
In
FIG. 15
, there is illustrated another embodiment in which upper ribs
62
a
,
62
b
and lower ribs
63
a
,
63
b
are provided on action
50
′ and extend downwardly from outer surface
59
′ of receiver
54
′. Prior to tightening fastener
36
, upper ribs
62
a
,
62
b
support receiver
54
′ in bedding channel
60
, and a gap is formed between the upper surface of channel
60
and lower ribs
63
a
,
63
b
. When fastener
36
is tightened the gap is closed and receiver
54
′ is supported in bedding channel
60
on upper ribs
62
a
,
62
b
and lower ribs
63
a
,
63
b.
FIG. 16
illustrates another embodiment where there is provided an action
50
″ having a receiver
54
″ having an outer surface
59
″ that forms a circular cross section. In this embodiment, bedding channel
60
includes opposite ribs
62
a
and
62
b
that support receiver
54
″ in channel
60
when action
50
″ is secured to action mounting portion
26
via fastener
36
.
It is contemplated herein that each embodiment of the bedding channel described above in
FIGS. 11-16
can be provided in a kit along with the necessary components for the action and stock to retrofit existing firearms in order to provide vertical and horizontal stability between the action and stock.
Referring now to
FIGS. 17-19
, there is illustrated a further aspect of the invention relating to the securement of action mounting insert
26
′ in receptacle
21
′ of stock
20
′. Action
50
is secured to mounting insert
26
′ as described above or by any technique known to those skilled in the art. A compressible member
100
is placed between action mounting insert
26
′ and the inner side the walls of receptacle
21
′. Compressible member
100
should be placed at least between the forward and rearward walls of receptacle
21
and insert
26
′, and preferably entirely about insert
26
′.
Compressible member
100
allows action mounting insert
26
′ and action
50
to act as a free body relative to stock
20
′ at the instant of firing the firearm since compressible member
100
isolates action
50
from hard contact of the rigid support provided by stock
20
′ and absorbs the recoil load of the firearm. It is contemplated that compressible member
100
will compress several thousandths of an inch at the instant of firing. Compressible member
100
is preferably elastic so it will return to its at rest position after the firearm is fired. Compressible member
100
isolates action
50
from the rigid support of stock
20
′, maintaining the accuracy and precision of the firearm if the firearm is fired from a hard rest or a soft rest. Compressible member
100
may be made from any material that possesses the requisite properties, including, for example, elastomeric materials or urethane pre-polymers, such as Conathane TU-8080.
While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred embodiment has been shown and described and that all changes and modifications that come within the spirit of the invention are desired to be protected.
Claims
- 1. A method for securing an action to a stock of a firearm, the method comprising:providing a stock including a bedding block having a surface defining a bedding channel with opposite sides, the bedding block having a bedding fastener opening formed therethrough; providing an action including a receiver coupled at a rearward end of a barrel, the receiver having a threaded passage alignable with the bedding fastener opening; providing a pair of first ribs between the receiver and the bedding channel, each one of the first ribs extending along a corresponding one of the sides of the bedding block; providing a pair of second ribs between the receiver and the bedding channel, each one of the second ribs extending along a corresponding one of the sides of the bedding block; supporting the receiver on the opposite sides of the bedding channel with the first ribs contacting the bedding channel and the receiver, and a gap between the second ribs and one of the receiver or the bedding channel; placing a fastener through the bedding block opening into the threaded passage; and securing the receiver on the bedding block with the fastener so that the second ribs are in contact with the bedding channel and the receiver.
- 2. The method of claim 1, wherein the pair of first ribs and the pair of second ribs are on the bedding channel.
- 3. The method of claim 1, wherein the bedding channel has a truncated V-shape.
- 4. The firearm assembly of claim 1, wherein said receiver has a substantially octagonally-shaped cross-section.
- 5. A method for securing an action to a stock of a firearm, comprising:providing a firearm assembly having a barrel extending between a forward end and a rearward end, a receiver coupled to the rearward end of the barrel, the firearm assembly having a longitudinal axis extending along the center of the barrel; providing a stock having a bedding channel formed therein, the bedding channel having opposite sides extending in the direction of the longitudinal axis; supporting the receiver in the bedding channel with a first pair of ribs, one of the first pair of ribs extending along one side of the bedding channel and the other of the first pair of ribs extending along the other side of the bedding channel; and supporting the receiver in the bedding channel with a second pair of ribs, one of the second pair of ribs extending along one side of the bedding channel and the other of the second pair of ribs extending along the other side of the bedding channel.
- 6. The method of claim 5, wherein the receiver is initially supported in the bedding channel by the first pair of ribs such that a gap is formed between the receiver and the second pair of ribs, and further comprising:securing the receiver in the bedding channel with the receiver in contact with the first pair of ribs and in contact with the second pair of ribs.
- 7. The method of claim 5, wherein the bedding channel has a truncated V-shape.
- 8. The method of claim 5, wherein the first pair of ribs and the second pair of ribs are formed on the bedding channel.
- 9. The method of claim 5, wherein the receiver has a substantially octagonally-shaped cross-section.
- 10. A method for securing an action to a stock of a firearm, the method comprising:providing a stock having a surface defining a bedding channel with opposite sides; providing an action including a receiver coupled at a rearward end of a barrel; providing a pair of first ribs between the receiver and the bedding channel, each one of the pair of first ribs extending along a corresponding one the sides of the bedding channel; providing a pair of second ribs between the receiver and the bedding channel, each one of the pair of second ribs extending along a corresponding one of the sides of the bedding channel; supporting the receiver on the opposite sides of the bedding channel with the pair of first ribs; and securing the receiver on the bedding channel so that the second ribs are in contact with the bedding channel and the receiver.
- 11. The method of claim 10, wherein the pair of first ribs and the pair of second ribs are on the bedding channel.
- 12. The method of claim 11, wherein securing the receiver on the bedding block includes engaging a fastener to the stock and the receiver.
- 13. The method of claim 11, wherein the bedding channel is formed in a bedding block of the stock.
- 14. The method of claim 11, wherein the bedding channel has a truncated V-shape.
- 15. The method of claim 11, wherein the receiver has a substantially octagonally-shaped cross-section.
US Referenced Citations (17)
Foreign Referenced Citations (1)
Number |
Date |
Country |
856051 |
May 1940 |
FR |