U.S. patent number 3,710,496 [Application Number 05/070,182] was granted by the patent office on 1973-01-16 for firearm adjustable cheek piece.
This patent grant is currently assigned to Mershon Company. Invention is credited to Jack R. Farrar, John Gerick, Frank A. Packmayr.
United States Patent |
3,710,496 |
Packmayr , et al. |
January 16, 1973 |
FIREARM ADJUSTABLE CHEEK PIECE
Abstract
Gunstock having a movable cheek piece carried on the side
thereof which is adjustable to variably accommodate the gunstock in
cradled position against a user's face.
Inventors: |
Packmayr; Frank A. (Los
Angeles, CA), Farrar; Jack R. (Whittier, CA), Gerick;
John (La Verne, CA) |
Assignee: |
Mershon Company (Los Angeles,
CA)
|
Family
ID: |
22093659 |
Appl.
No.: |
05/070,182 |
Filed: |
September 8, 1970 |
Current U.S.
Class: |
42/71.01;
42/73 |
Current CPC
Class: |
F41C
23/14 (20130101) |
Current International
Class: |
F41C
23/00 (20060101); F41C 23/14 (20060101); F41c
023/00 () |
Field of
Search: |
;42/73,74,71 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
5,688 |
|
Apr 1890 |
|
GB |
|
114,228 |
|
Nov 1941 |
|
AU |
|
1,536,354 |
|
Jul 1968 |
|
FR |
|
Primary Examiner: Borchelt; Benjamin A.
Assistant Examiner: Jordan; C. T.
Claims
We claim:
1. Gunstock for supporting a gun mechanism and a gun barrel, said
gunstock being adapted to be cradled against a user's face, and
including movable face engaging means carried on the side and top
of said gunstock, structure mounting said face engaging means on
the gunstock in adjustably spaced relation for variable
accommodation of the gunstock in cradled position, said mounting
structure including a plurality of distributed spacer elements
supporting the face engaging means in adjustable spaced relation to
the gunstock body, and a frame secured to the gunstock and adapted
to anchor said spacer elements, said frame having a horizontally
disposed transverse bore for receiving a spacer element.
2. Gunstock according to claim 1 in which said mounting structure
spacer elements include a spacer element supporting said face
engaging means to be vertically adjustable on the gunstock.
3. Gunstock according to claim 2 in which said mounting structure
spacer elements include forward and rearward vertically disposed
spacer elements supporting said face engaging means to have forward
and rearward positions relatively differently adjustable vertically
on said gunstock.
4. Gunstock according to claim 1 in which said mounting structure
spacer elements include a spacer element supporting said face
engaging means to be adjustable transversely on the gunstock.
5. Gunstock according to claim 4 in which said mounting structure
spacer elements include forward and rearward horizontally disposed
spacer elements supporting said face engaging means to have forward
and rearward positions relatively differently adjustable
transversely on said gunstock.
6. Gunstock according to claim 1 including also a spring compressed
between the face engaging means and the gunstock body to dampen
firing recoil forces transmitted to the face engaging means.
7. Gunstock for supporting a gun mechanisn and a gun barrel and
adapted to be cradled against a user's face, said gunstock
including movable face engaging means carried on the side and top
thereof and mounted to have upper and lower portions of the face
engaging means relatively differently transversely adjustable on
said gunstock.
8. Gunstock for supporting a gun mechanism and a gun barrel and
adapted to be cradled against a user's face, said gunstock
including movable face engaging means on the top and side thereof,
mounting structure for said face engaging means, said mounting
structure including an elongated frame secured lengthwise to the
gunstock body and provided with plural vertical apertures and
horizontal apertures, a plurality of distributed spacer elements
supporting the face engaging means in adjusted spaced relations
with the gunstock body, said spacer elements including a
longitudinally spaced pair of vertically disposed spacer elements
and a longitudinally spaced pair of horizontally disposed spacer
elements, said spacer elements being anchored at the frame
apertures, and each individually adjustable to correspondingly
adjust the spacing of that portion of the face engaging means it
supports in relation to the gunstock body.
9. Gunstock according to claim 8 including also an additional
spacer element adapted to adjust the spacing from the gunstock body
of the lower portion of the face engaging means relative to the
upper portion thereof.
10. Gunstock according to claim 9 including also compression
springs extending between the face engaging means and said
horizontally disposed spacer elements, said springs being centered
on vertically disposed spacer elements.
11. Gunstock according to claim 8 including also spacer element
engaging means between the frame and the gunstock body and
accessible through the frame apertures, said vertically disposed
spacer elements being received in said apertures and secured by
said spacer element engaging means.
12. Gunstock according to claim 8 in which said horizontally
disposed frame apertures comprise plural threaded transverse bores
longitudinally spaced along said frame and each adjustably
receiving one of said spacer elements in threaded engagement.
13. Gunstock according to claim 12 in which said vertically
disposed spacer elements are terminally threaded and including also
nut means between the frame and the gunstock body accessible
through said frame apertures for threaded engagement with said
spacer elements.
14. Gunstock according to claim 13 including also an additional
spacer element adjustably threaded into said gunstock body below
said frame and opposite said face engaging means for varying the
spacing of the lower portion thereof relative to its upper
portion.
15. Gunstock according to claim 14 including also a pair of
longitudinally spaced springs compressed between the face engaging
means and the gunstock body to dampen recoil forces transmitted to
the face engaging means.
16. Gunstock according to claim 8 in which said face engaging means
comprises a curved molding of rigid synthetic organic plastic
saddled on the gunstock body over said frame.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention has to do with gunstocks and the provision of a
movable face engaging portion or cheek piece thereon to enable
variable, preset accommodation of the gunstock in cradled position
against a user's face to enable ready sighting alignment.
2. Prior Art
Gunstocks conventionally are configured to be comfortably
accommodated against the user's face when sighting down the barrel
or when aligning the gun sights. The upper portion of the gunstock,
or comb, is sized and contoured for the average user and typically
no provision is made for differences among prospective users, so
that an individual sighting adjustment must be made each time in
cradling the gunstock to achieve both comfort and targeted
alignment of the sights. A given user will cradle the gunstock in
the same manner time after time so that an appropriately
dimensioned gunstock could be thrown to the shoulder and be sighted
upon cradling against the face. Custom turning of gunstocks for
each user would be economically prohibitive, of course.
SUMMARY OF THE INVENTION
It is accordingly a major objective of my invention to provide an
adjustability in the comb portion of gunstocks enabling variable
accommodation of the gunstock in cradled position suited to the
particular user, generally by provision of a movable cheek piece or
face engaging means on the side of the gunstock which is adjustable
vertically, horizontally and angularly for a particular gun user,
so that upon personalized adjustment thereof, the gun is
appropriately positioned for sighting merely upon being brought to
the cradle position.
Specifically, the invention provides a gunstock supporting a gun
mechanism and a gun barrel and adapted to be cradled against a
user's face, which includes a movable face engaging means carried
on the side and top thereof and adjustable to variably accommodate
the gunstock in cradled position. The face engaging means is
mounted to have multiple degrees of freedom including vertical
front or rear, or front and rear, movement; horizontal or
transverse front and rear, or front or rear, movement; and angular
transverse movement of the lower portion relative to the upper
portion thereof. Structure for thus mounting the face engaging
means is provided including a plurality of distributed spacer
elements supporting the face engaging means in adjusted spaced
relation with the gunstock body and an elongated frame secured
lengthwise to the gunstock body and adapted to anchor the spacer
elements onto the gunstock body. The face engaging means typically
will comprise a curved molding of rigid synthetic organic plastic
saddled on the gunstock body over the frame which molding may be
resiliently supported by springs compressed between the face
engaging means and the gunstock body to dampen recoil forces
transmitted to the face engaging means, the assembly typically
being accommodated in the comb portion of the gunstock body which
has been relieved for such accommodation substantially within the
plane of the comb. The spacer elements include vertically disposed
elements and horizontally disposed elements each being individually
adjustable to correspondingly adjust that portion of the face
engaging means which it supports respectively vertically or
horizontally, and an additional spacer element adjusting the
spacing of the lower portions of the face engaging means relative
to the upper portions thereof generally radially of the gunstock
body.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be further described as to illustrative
embodiments thereof in connection with the attached drawings in
which:
FIG. 1 is a view taken in longitudinal section through a typical
form of movable face engaging means, according to the invention and
illustrating one form of securement to the gunstock;
FIG. 2 is an expanded, perspective view illustrative of the
mounting structure frame and its assembly for attachment to the
gunstock;
FIG. 3 is a plan view taken along line 3--3 in FIG. 1;
FIG. 4 is a cross-section taken on line 4-4 in FIG. 1;
FIG. 5 is a fragmentary view in section taken on line 5--5 in FIG.
1;
FIG. 6 is a fragmentary view in section taken on line 6--6 in FIG.
1;
FIG. 7 is a fragmentary view in section taken on line 7--7 in FIG.
1;
FIG. 8 is a view similar to FIG. 1 showing a variational form of
the invention;
FIG. 9 is a fragmentary view in section taken on line 9--9 in FIG.
8;
FIG. 10 is an enlarged fragmentary view in section taken on line
10--10 in FIG. 9; and
FIG. 11 is a view similar to FIG. 4 showing a variational form of
the invention.
Referring now to the drawings, and particularly to FIGS. 1 and 3
which show the attachment of a cheek piece generally indicated at 1
to the comb 2 of a gunstock 3 carrying recoil pad 3a, it will be
understood that the cheek piece broadly comprises a wood structure,
metal stamping, casting or molding of a suitably rigid plastic
material such as styrene polymer, rubber modified styrene polymer
or acrylonitrilebutadiene-styrene polymer, or other synthetic
organic polymer, thermoplastic or thermosetting, which can be
molded or formed into a longitudinally bowed and generally U-shaped
cross-section wall 4 (see FIGS. 4-7) having a suitable thickness,
e.g. varying from one-sixteenth inch to one-half inch in various
sections and adapted to be saddled over the comb of the gunstock
and engaged against a user's face without distortion.
The gunstock comb 2 is relieved at 5 below the cheek piece arch 6
to accommodate the cheek piece 1 generally in the plane of the comb
and to provide for a mounting structure indicated at 7 which mounts
the cheek piece on the gunstock body 8. The cheek piece 1 includes
a relatively long face engaging side panel 9 below the arch 6 and
overlying the gunstock body surface portion 8a normally opposite
the user's cheek and terminating in a rolled edge 49 approximately
one-half inch in thickness and a relatively short side panel 10,
preferably terminally feathered, e.g. to approximately
one-sixteenth inch at 11 (see FIG. 4) overlying the opposite
surface 8b of the gunstock body 8.
Attachment of the cheek piece 1 to the gunstock body 8 in the
embodiment of FIGS. 1-7 is by means of the mounting structure 7 and
particularly by frame 12, an elongated member, rectangular in
cross-section as shown or as a channel or U-shape metal extrusion,
stamping or die casting or plastic molding, which is sized to
interfit the vertically relieved section 5 of the gunstock body.
Screw fasteners 13 in frame holes 14 secure the frame 12 to the
gunstock body 8 at suitable longitudinally spaced locations
forwardly, centrally and rearwardly on the frame. Recoil dampening
is provided by front and rear recoil springs 141 conveniently
secured by fasteners 13. The cheek piece 1 is adjustably mounted on
the gunstock body 8 by spacer elements comprising vertically
disposed adjustment bolts 15 and 16 respectively forwardly and
rearwardly positioned on the frame 12. Bolts 15, 16 are inserted
through the cheek piece arch portion 6 at recesses 17 and 18
therein respectively to have bolt heads 15a and 16a engage the
cheek piece arch 6 below the general plane of the arch. Snap rings
19 and 20 are provided below the arch portion 6 on the bolts 15, 16
cooperating with bolt heads 15a, 16a to clamp the cheek piece 1 to
the bolt while permitting axial bolt rotation. The bolts 15, 16
respectively, are anchored to the frame 12 by means of nuts 21 and
22 threaded onto the bolts, the nuts being captured against
rotation in nut cages 23 and 24 below the bolt passing slots 25 and
26 in the frame; see FIG. 2. The nut cages 23,24 secured to frame
12 by screw fasteners 27 are located respectively in recesses 28
and 29 in the gunstock body 8 to permit full length engagement of
the frame with the body. Rotation of the bolts 15, 16 moves bolt
heads 15a, 16a inwardly or outwardly and correspondingly varies the
spacing relation of the cheek piece 1 to the gunstock body 8 to
provide for vertical adjustment of the cheek piece. Bolts 15 and 16
are individually adjustable enabling the same vertical adjustment
of front portion 1a and rear portion 1b of the cheek piece 1 or a
different adjustment of each portion, e.g. front portion 1a
downward, rear portion 1b upward, or vice versa, according to a
user's requirements.
Adjustment transverse to the gunstock longitudinal axis 30 is
provided by horizontally disposed spacer elements shown in the form
of forward and rearward bolts 31 and 32 respectively, threaded
through frame 12 at threaded bores 33 and 34 respectively. As best
shown in FIG. 5, forward horizontal bolt 31 comprises a fully
threaded shank 35, a head 36 having an internal hexagonal wrench
opening 36a and engaging cheek piece short side panel 10 opposite
opening 37 therein to provide access through the cheek piece 1 for
adjustment of the bolt, and a foot pad 38 which may be a metal
hemisphere welded to the bolt, to engage shoulder 39; see FIG. 3.
Rotation of bolts 31, 32 moves their bolt heads 36 inwardly or
outwardly relative to the frame 12 and moves foot pads 38
oppositely with respect to the frame, to thus adjust the cheek
piece 1 toward the left or right side of the gunstock body 8. Bolts
31, 32 are individually adjustable, enabling the same transverse
adjustment of cheek piece front portion 1a and rear portion 1b or a
different transverse adjustment of each portion, e.g. front portion
1a left and rear portion 1b right, or vice versa, according to the
user's requirements.
It will be noted that the transverse adjustments described are
independent of the vertical alignment of the cheek piece portions
1a and 1b which is determined by the setting of bolts 15, 16 and
that vertical and transverse adjustments are separately
accomplished. Vertically disposed bolts 15, 16 pass through slots
25, 26 in the frame 12 as described, to enable lateral frame
movement transversely of the gunstock body longitudinal axis
30.
Horizontally disposed bolts 31, 32 are locked against maladjusting
rotation by a resilient locking arrangement best shown at 40 in
FIGS. 1 and 2 and comprising for each bolt an assembly of a nylon
plug 41, a compression spring 42 and an adjustment screw 43 all
receivable in a terminally threaded longitudinal bore 44 extending
from their respective frame ends 45, 46 to the front and rear
transverse bores 33, 34 in which the horizontal bolts 31, 32 are
threaded. The plug 41 and spring 42 are inserted in the bore 44 to
bear against the adjacent horizontally disposed bolt 31 or 32 with
a force adjustable by threaded adjustment of screw 43 within the
bore, prior to completing mounting of the frame 12 on the gunstock
body 8 with front or rear fastening screws 14.
A further adjustment is provided to vary the cant or angular
relation of the cheek piece long side panel 9 to the gunstock body
8. As best shown in FIG. 4, adjustment bolt 47 passing through
vertical slot 48 in the panel lower portion 49 is threaded into nut
50 fixed in the gunstock body 8 at a location approximately
intermediate the top and bottom of the body with its bolt head 51
outwardly exposed within recess 52. O-ring 53 is on the bolt 47
beneath the lower panel portion 49 and between interior shoulder 54
thereof and the recess 55 in gunstock body 8 to afford resilient
support for the lower panel portion in various adjustment
conditions. Adjustment of cheek piece cant is achieved by rotating
bolt 47 for inward or outward movement and corresponding movement
of the cheek piece long side panel lower portion 49. Because of the
overall rigidity of the cheek piece 1 the upper portion 56 thereof
is caused to move also although to a lesser extent as the cheek
piece in effect pivots on mounting structure 7.
A variational form of mounting structure is depicted in FIGS. 8-10
wherein like parts to FIGS. 1-7 are given like numerals. As in the
previous embodiments cheek piece 1 is mounted on gunstock body 8
having a longitudinal bore 8c, and a relieved section 5 of the comb
portion 2 of the body. In this embodiment, the comb portion 2 has
been relieved in a somewhat different manner so that the cheek
piece 1 may be entirely within the top plane of the gunstock body
8. The mounting structure 71 utilizes the gunstock body 8 above and
below body bore 8c as the support for all mounting and adjustment
bolts; the frame and its screw fasteners having been dispensed
with.
The gunstock body 8 is provided with tapped horizontally disposed
transverse front and rear bores 57 and 58 respectively drilled
thereinto which threadedly receive horizontal adjustment screws 59
and 60. The horizontal adjustment screws 59, 60 are each provided
with a transverse threaded bore 61 and 62 for purposes now to be
explained.
As most clearly shown in FIG. 10, the cheek piece is supported
vertically by spacer elements in the form of front and rear
vertical adjustment bolts 63 and 64 which pass through the arch 6
of cheek piece 1 at recesses 65 and 66 respectively, and slots 67
and 68 in the gunstock body 8 therebelow and are threaded into
horizontal adjustment screws 59, 60 respectively, at their
transverse bores 61, 62. Springs 69, 70 are centered on vertically
disposed bolts 63, 64 respectively, to serve as recoil absorbers
and spacers of the cheek piece above the gunstock body 8 while also
serving to prevent unwanted rotation of adjustment screws 59,
60.
Vertical and horizontal adjustment of the cheek piece 1 in the
present embodiment is secured by rotation of the horizontal
adjusting screws 59, 60 to vary the relation of their transverse
bores 61, 62 to the gunstock longitudinal axis 30, and threading
the vertically disposed bolts 63, 64 with the cheek piece 1
attached thereto into these bores a variable distance for a desired
adjustment.
As in the earlier embodiment, a cant adjustment is provided, best
shown in FIG. 9, by means of adjustment bolt 72 threaded into fixed
nut 73 with bolt head 74 and lock washer 75 in engagement with
vertically slotted retainer 76 embedded in recess 77 in the cheek
piece long side panel lower portion 49. The retainer slot 78
permits vertical adjustment of the cheek piece 1 relative to the
cant adjustment bolt 72. As indicated by the different longitudinal
positionings of adjustment bolt 72 in the FIG. 1 and FIG. 8
embodiments, this adjustment element may be variously placed
relatively forwardly or rearwardly in the cheek piece lower portion
49 as desired.
A further variational form of transverse adjustment is shown in
FIG. 11, wherein like parts to FIGS. 1-10 are given like numerals.
A modified form of transverse adjustment assembly is provided
comprising a threaded sleeve 80 which is fixed in transverse bore
58. Sleeve 80 has a longitudinal central slot 81 to receive
vertical adjustment bolt 64. Nut 82 slides into sleeve 80 to engage
bolt 64. The position of nut 82 is adjustable to correspondingly
vary the transverse positioning of cheek piece 1 on the gunstock
body 8 by opposed set screws 83 which cooperate to fix nut 82 in a
desired position within bore 58, the sleeve slot 81 accommodating
the necessary transverse movement of bolt 64. Also shown in FIG. 11
is a modified form of resilient mounting for the panel lower
portion 49 comprising a coil spring 84 centered on adjustment bolt
72 and received in annular recess 85 about nut 73.
* * * * *