U.S. patent application number 09/860534 was filed with the patent office on 2002-01-17 for shotgun for competitive clay target shooting.
Invention is credited to Miller, Ronald J..
Application Number | 20020005005 09/860534 |
Document ID | / |
Family ID | 22812185 |
Filed Date | 2002-01-17 |
United States Patent
Application |
20020005005 |
Kind Code |
A1 |
Miller, Ronald J. |
January 17, 2002 |
Shotgun for competitive clay target shooting
Abstract
A shotgun includes a stock, a receiver and a barrel group. The
stock has a butt end and an opposite second end. The receiver which
is for containing a moving parts group, has a rear end and a
forward end and is releasably mountable at the rear end by a
releasable coupler to the second end of the stock. The barrel group
has a discharge end and an opposite loading end. The loading end is
releasably mountable by a pivotable coupler to the forward end of
the receiver. The moving parts group, when mounted in the receiver,
contain all of the moving parts between a trigger and a firing pin
or pins in moving operation relative to the receiver required
during firing of the shotgun. The releasable coupler includes a
manually operable coupler release. The coupler release is manually
actuable so that the releasable coupler mounts the receiver to, or
demounts the receiver from, the stock upon tool-less, hand
actuation by a user of the coupler release, that is, upon manual
actuation by the user without the need to use a tool, such as a
screwdriver, to assist in operating the coupler release. The
receiver may be quickly removed by hand from the stock and quickly
replaced with a spare receiver containing a spare moving parts
group.
Inventors: |
Miller, Ronald J.; (Kelowna,
CA) |
Correspondence
Address: |
ANTONY C. EDWARDS
BISHOP & COMPANY
SUITE 206, 347 LEON AVENUE
KELOWNA
BC
V1Y 8C7
CA
|
Family ID: |
22812185 |
Appl. No.: |
09/860534 |
Filed: |
May 21, 2001 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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60217711 |
Jul 12, 2000 |
|
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Current U.S.
Class: |
42/75.02 |
Current CPC
Class: |
F41A 11/00 20130101 |
Class at
Publication: |
42/75.02 |
International
Class: |
F41A 021/00 |
Claims
What is claimed is:
1. A shotgun comprising: a stock having a butt end and an opposite
second end, a receiver for containing a moving parts group, said
receiver having a rear end and a forward end and releasably
mountable at said rear end by a releasable coupler to said second
end of said stock, a barrel group having a discharge end and an
opposite loading end, said loading end releasably mountable by a
pivotable coupler to said forward end of said receiver, wherein
said moving parts group, when mounted in said receiver, contains
all of the moving parts between a trigger and a firing pin in
moving operation relative to said receiver during firing of said
shotgun when said barrel and said stock are mounted to said
receiver, wherein said releasable coupler includes a manually
operable coupler release, said coupler release manually actuable so
that said coupler mounts said receiver to, or demounts said
receiver from, said stock upon tool-less, hand actuation by a user
of said coupler release.
2. The shotgun of claim 1 wherein said releasable coupler comprises
a rigid elongate member releasably mountable into a receiving
socket.
3. The shotgun of claim 2 wherein said rigid elongate member
threadably mounts into said receiving socket.
4. The shotgun of claim 2 wherein said receiving socket is a rigid
tubular member mountable into a bore in said second end of said
stock, and wherein said rigid elongate member is mountable to said
rear end of said receiver so as to cantilever said rigid elongate
member from said rear end of said receiver into co-axial alignment
with said tubular member when said tubular member is mounted to
said stock and said stock is mounted to said receiver.
5. The shotgun of claim 4 wherein said rigid elongate member is a
bolt-like member threadably mountable to said tubular member.
6. The shotgun of claim 5 wherein said bolt-like member is a bolt
having interrupted thread, said bolt having oppositely disposed
parallel planar lands along thread-disengaging portions of a length
of said bolt, said lands extending contiguously between oppositely
disposed interrupted thread surfaces along thread-engaging portions
of said length of said bolt, and wherein said tubular member has an
interrupted thread inner surface for threaded engagement with said
thread-engaging portions of said bolt, said tubular member having
apertures therein, said apertures aligned and sized so that as said
bolt is rotated relative to said tubular member while in threaded
engagement with said tubular member, said thread-engaging portions
are rotated out of thread engaging radial alignment with said
interrupted thread inner surface of said tubular member and into
radial alignment with said apertures in said threaded walls,
thereby aligning said thread-disengaging portions of said bolt with
said interrupted thread inner surfaces, whereby said bolt is
disengaged from said tubular member and may be withdrawn
therefrom.
7. A shotgun receiver for mounting to: a stock having a butt end
and an opposite second end, and for mounting to a barrel group
having a discharge end and an opposite loading end, said loading
end releasably mountable by a pivotable coupler to said forward end
of said receiver, said receiver comprising a moving parts group and
a releasable coupler, said receiver having a rear end and a forward
end and releasably mountable at said rear end by said releasable
coupler to said second end of said stock, wherein said moving parts
group, when mounted in said receiver, contains all of the moving
parts between a trigger and a firing pin in moving operation
relative to said receiver during firing of said shotgun when said
barrel and said stock are mounted to said receiver, wherein said
releasable coupler includes a manually operable coupler release,
said coupler release manually actuable so that said coupler mounts
said receiver to, or demounts said receiver from, said stock upon
tool-less, hand actuation by a user of said coupler release.
8. The shotgun receiver of claim 7 wherein said releasable coupler
comprises a rigid elongate member releasably mountable into a
receiving socket.
9. The shotgun receiver of claim 8 wherein said rigid elongate
member threadably mounts into said receiving socket.
10. The shotgun receiver of claim 8 wherein said receiving socket
is a rigid tubular member mountable into a bore in said second end
of said stock, and wherein said rigid elongate member is mountable
to said rear end of said receiver so as to cantilever said rigid
elongate member from said rear end of said receiver into co-axial
alignment with said tubular member when said tubular member is
mounted to said stock and said stock is mounted to said
receiver.
11. The shotgun receiver of claim 10 wherein said rigid elongate
member is a bolt-like member threadably mountable to said tubular
member.
12. The shotgun receiver of claim 11 wherein said bolt-like member
is a bolt having interrupted thread, said bolt having oppositely
disposed parallel planar lands along thread-disengaging portions of
a length of said bolt, said lands extending contiguously between
oppositely disposed interrupted thread surfaces along
thread-engaging portions of said length of said bolt, and wherein
said tubular member has an interrupted thread inner surface for
threaded engagement with said thread-engaging portions of said
bolt, said tubular member having apertures therein, said apertures
aligned and sized so that as said bolt is rotated relative to said
tubular member while in threaded engagement with said tubular
member, said thread-engaging portions are rotated out of thread
engaging radial alignment with said interrupted thread inner
surface of said tubular member and into radial alignment with said
apertures in said threaded walls, thereby aligning said
thread-disengaging portions of said bolt with said interrupted
thread inner surfaces, whereby said bolt is disengaged from said
tubular member and may be withdrawn therefrom.
13. The shotgun of claim 1 wherein said receiver further comprises
a low-locking barrel group release latch mounted to a low side of
said receiver, said low side of said receiver corresponding to a
trigger side of said receiver, said release latch cooperating with
a locking mechanism on said barrel group for releasable locking of
said barrel group on said pivotable coupler into firing engagement
with said firing pin.
14. The shotgun of claim 13 wherein said release latch has a latch
actuating trigger mounted to said low side of said receiver so as
to extend therefrom for manual actuation by a user.
15. The shotgun of claim 14 wherein said latch actuating trigger is
mounted adjacent a trigger guard of said receiver.
16. The shotgun of claim 15 wherein said latch actuating trigger is
slidably mounted to said low side of said receiver.
17. The shotgun receiver of claim 7 wherein said receiver further
comprises a low-locking barrel group release latch mounted to a low
side of said receiver, said low side of said receiver corresponding
to a trigger side of said receiver, said release latch cooperating
with a locking mechanism on said barrel group for releasable
locking of said barrel group on said pivotable coupler into firing
engagement with said firing pin.
18. The shotgun receiver of claim 17 wherein said release latch has
a latch actuating trigger mounted to said low side of said receiver
so as to extend therefrom for manual actuation by a user.
19. The shotgun receiver of claim 18 wherein said latch actuating
trigger is mounted adjacent a trigger guard of said receiver.
20. The shotgun receiver of claim 19 wherein said latch actuating
trigger is slidably mounted to said low side of said receiver.
21. The shotgun of claim 1 wherein said butt end of said stock has
a slide channel formed therein in generally co-planar alignment
with a longitudinal axis of a barrel of said barrel group, said
stock further comprising a recoil absorbing slide resiliently
slidably mounted in said slide channel, said slide having a
shoulder pad mounted at an exposed end of said slide, said exposed
end protruding from said butt end, said slide having an upper
portion extending from said slide channel along an upper surface of
said stock, generally opposite a handgrip of said stock, a slide
cover member mounted to said slide and extending generally the
length of said stock and along said upper surface of said stock,
said slide cover for sliding over said upper surface of said stock
as said slide slides in said slide channel so as to absorb recoil
upon firing of said shotgun.
22. The shotgun of claim 21 further comprising a rigid insert
slidable over an exposed portion of said exposed end of said slide
when said slide is fully extended from said butt end of said stock
so as to disable operation of said slide.
Description
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims priority from U.S. Provisional
Patent Application No. 60/217,711 filed Jul. 12, 2000 entitled
Shotgun For Competitive Clay Target Shooting.
FIELD OF THE INVENTION
[0002] This invention relates to the field of sporting shotguns as
opposed to those used primarily for hunting, and in particular to a
sporting shotgun for competitive clay target shooting.
BACKGROUND OF THE INVENTION
[0003] In conventional clay target shooting competitions using for
example Perazzi.TM. or Krieghoff.TM. sporting shotguns, a failure
of a gun component while on the firing line will usually mean
defaulting in that round of the competition because under the
competition's rules, if a gun misfires, you have only 5 minutes in
which to effect a repair.
[0004] In such instances it would be advantageous, and it is one
object of the present invention to provide, a quickly
interchangeable shotgun component which contains virtually all of
the moving parts of a shotgun so that no matter which internal
mechanism failed, the entire shotgun component may be removed and
quickly replaced with a spare component otherwise referred to
herein as a spare parts group.
[0005] Thus what is provided in the present invention is a modified
stock which at the butt end is modified so that the user may select
between a completely rigid stock or one having a recoil absorber,
and which at its receiver end is modified to incorporate a quick
release coupling for mating with the shotgun receiver. It is a
further object to provide a modified shotgun receiver containing
all of the moving parts which may be replaced by a spare parts
group and which is further modified to allow selective release of
the receiver from the shotgun barrel group by an actuator on the
lower surface of the receiver forward of the trigger housing.
[0006] In the prior art, applicant is aware of hunting shotguns,
for example those made by Browning and sold under the trade mark
Citori. One example is shown partially cut-away in FIG. 1a. As may
be seen, in the Citori example, the shotgun stock is mounted to the
receiver by means of a bolt inserted from the butt end along a bore
in the stock so as to protrude from the receiver mating end of the
stock. The bolt threads into a threaded hole or bore in the aft end
of the receiver and is tightened, for example by means of a
screwdriver, so as to draw the receiver snugly into mating with the
stock. A cover plate is screwed into place to cover access to the
bore in the stock.
SUMMARY
[0007] The shotgun of the present invention as defined herein is
understood and intended to include the shotgun as an assembled
whole, the shotgun as a partially or fully disassembled kit or
system, and each separate novel part thereof. Consequently the
shotgun of the present invention may be summarized as including a
stock, a receiver and a barrel group. The stock has a butt end and
an opposite second end. The receiver which is for containing a
moving parts group, has a rear end and a forward end and is
releasably mountable at the rear end by a releasable coupler to the
second end of the stock. The barrel group has a discharge end and
an opposite loading end. The loading end is releasably mountable by
a pivotable coupler to the forward end of the receiver. The moving
parts group, when mounted in the receiver, contain all of the
moving parts between a trigger and a firing pin or pins in moving
operation relative to the receiver required during firing of the
shotgun. The releasable coupler includes a manually operable
coupler release. The coupler release is manually actuable so that
the releasable coupler mounts the receiver to, or demounts the
receiver from, the stock upon tool-less, hand actuation by a user
of the coupler release, that is, upon manual actuation by the user
without the need to use a tool, such as a screwdriver, to assist in
operating the coupler release. Consequently the receiver may be
quickly removed by hand from the stock and quickly replaced with a
spare receiver containing a spare moving parts group.
[0008] In one embodiment, the releasable coupler may comprise a
rigid elongate member releasably mountable into a receiving socket.
The rigid elongate member may threadably mount into the receiving
socket. In particular, in one embodiment the receiving socket is a
rigid tubular member mountable into a bore in the second end of the
stock, and the rigid elongate member is mountable to the rear end
of the receiver so as to cantilever the rigid elongate member from
the rear end of the receiver into co-axial alignment with the
tubular member when the tubular member is mounted to the stock and
the stock is mounted to the receiver.
[0009] The rigid elongate member may be a bolt-like member
threadably mountable to the tubular member. The bolt-like member
may for example be a bolt having an interrupted thread. Such a bolt
may have oppositely disposed parallel planar lands along
thread-disengaging portions of a length of the bolt. The lands may
extend contiguously between oppositely disposed threaded surfaces
along thread-engaging portions of the length of the bolt. The
tubular member may have an interrupted thread inner surface for
threaded engagement with the thread-engaging portions of the bolt.
The threaded walls of the tubular member may have apertures
therein. The apertures are aligned and sized so that as the bolt is
rotated relative to the tubular member while in threaded engagement
with the tubular member, the thread-engaging portions are rotated
out of thread engaging radial alignment with the threaded inner
surface of the threaded walls and into radial alignment with the
apertures in the threaded walls, thereby aligning the
thread-disengaging portions of the bolt with the threaded inner
surfaces of the threaded walls. The bolt is thereby disengaged from
the tubular member and may be withdrawn therefrom.
[0010] The shotgun receiver may further comprise a low-locking
barrel group release latch mounted to a low side of the receiver.
The low side of the receiver is defined as corresponding to a
trigger side of the receiver. The release latch cooperates with a
locking mechanism on the barrel group for releasable locking of the
barrel group on the pivotable coupler. When the release latch is
locked onto the barrel locking mechanism a round in the barrel is
aligned for firing engagement with the firing pin or pins in
receiver.
[0011] The release latch may have a latch actuating trigger mounted
to the low side of the receiver so as to extend therefrom for
manual actuation by a user. The latch actuating trigger may be
mounted adjacent a trigger guard of the receiver. The latch
actuating trigger may be slidably mounted to the low side of the
receiver.
[0012] The butt end of the stock may have a slide channel formed
therein in generally co-planar alignment with a longitudinal axis
of a barrel of the barrel group. The stock may then further include
a recoil absorbing slide resiliently slidably mounted in the slide
channel. The slide may have a shoulder pad mounted at an exposed
end of the slide, that is, the exposed end protruding from the butt
end of the stock. The slide may have an upper portion extending
from the slide channel along an upper surface of the stock, for
example generally opposite a handgrip of the stock. A slide cover
member may be mounted to the slide and may extend generally the
length of the stock and along the upper surface of the stock. The
slide cover slides over the upper surface of the stock as the slide
slides in the slide channel so as to absorb recoil upon firing of
the shotgun. The slide cover may be conformally shaped so as to
smoothly conform to the contours of the stock. A rigid insert may
be provided which is slidable over an exposed portion of the
exposed end of the slide when the slide is fully extended from the
butt end of the stock so as to disable operation of the slide.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is a partially exploded perspective view of the
shotgun of the present invention,
[0014] FIG. 1a is an exploded, partially cut-away perspective view
of a prior art shotgun.
[0015] FIG. 2 is a side elevation of the butt stock of FIG. 1
showing the recoil mechanism in operation,
[0016] FIG. 3 is, in partially exploded view, the butt stock of
FIG. 2 with the recoil mechanism disabled,
[0017] FIG. 3a is, in elevation view, the recoil disabling
mechanism of FIG. 3,
[0018] FIG. 4 is an exploded isometric view illustrating the
coupling mechanism between forestock and trigger housing of the
shotgun of FIG. 1,
[0019] FIG. 5 is a cross-sectional view along line 5-5 in FIG.
4,
[0020] FIG. 6 is a partially exploded isometric view illustrating
the trigger housing and the coupling bolt and male coupler of FIG.
4,
[0021] FIGS. 7 and 7a are isometric views of the break-open
mechanism in the forestock.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
[0022] As seen in FIG. 1, the improved shotgun 10 of the present
invention has a stock 12, a receiver 14 and a barrel group 16.
[0023] As illustrated in FIGS. 2 and 3, stock 12 may have at its
butt end a shoulder pad 18 mounted to a rigid base plate 20. Base
plate 20 is rigidly and orthogonally mounted to internal slide arm
22. Slide arm 22 slides within a channel in stock body 24 along a
plane generally vertically bisecting stock 12 so as to cooperate
with a resilient shock absorber such as conventionally known in the
art housed within stock body 24. Slide body 26 is also rigidly
orthogonally mounted to base plate 20 so as to extend
co-extensively along an upper surface of stock body 24. Slide body
26 slides over interface 27 relative to stock body 24 when stock
body 24 recoils in direction A due to recoil following firing of
the shotgun. Slide body 26 is shaped conformally with stock body 24
so that with slide arm 22 in its normally extended non-compressed
position, other than a hairline at interface 27, slide body 26 and
stock body 24 appear as a unitary whole in the shape of a
conventional rigid shotgun stock.
[0024] As better seen in FIG. 3a, U-shaped insert 28 may be slid in
direction B into the cavity between base plate 20 and the adjacent
end of plate 30 mounted to stock body 24. Channel 32 in U-shaped
insert 28 slides snugly over slide arm 22 until the upper ends of
U-shaped insert 28 abut the lower surface of slide body 26 so as to
completely cover slide arm 22. With U-shaped insert 28 so mounted,
the operation of slide arm 22, that is, the operation of the
resilient recoil absorber, is disabled so that stock 12 performs as
a conventional rigid stock. The outer surface of U-shaped insert 28
is shaped so as to conform to the lateral cross-sectional shape of
stock body 24 and base plate 20. U-shaped insert 28 may be
releasably locked into place between base plate 20 and end plate 30
by means of a friction fit assisted by, for example, a
spring-loaded ball bearing latch mechanism wherein ball bearing 34
resiliently mounted in end plate 30 releasably engages a
corresponding cup or aperture 36 in U-shaped insert 28.
[0025] As seen in FIG. 4, at the opposite end of stock body 24
opposite to plate 30, a female receiver coupler 38 is mounted into
forestock 12a. Forestock 12a is longitudinally bored so as to
snugly receive sleeve 40 of coupler 38 journalled into and along
the bore. Sleeve 40 is itself hollow having a pair of oppositely
disposed cutouts 42 along its length defining therebetween an
opposed facing pair of threaded lands 44. Sleeve 40 is rigidly
mounted to annular collar 46 so as to extend perpendicularly
therefrom. Annular collar 46 is shaped and sized so that its outer
perimeter is conformal to the end surface of forestock 12a when
sleeve 40 is mounted within the longitudinal bore of forestock
12a.
[0026] In the illustrated embodiment, not intended to be limiting,
the alignment of sleeve 40 within the bore of forestock 12a is
assisted and maintained by fiberglassing the sleeve into the bore,
assisted by the fiberglass engaging longitudinal grooves 40a in
sleeve 40.
[0027] The cylindrical aperture 46a of collar 46 is coaxial with,
and of corresponding diameter to, the internal cylindrical cavity
of sleeve 40 so as to receive therethrough male coupling shaft 48
when inserted in direction C into sleeve 40 along axis D.
[0028] Male coupling shaft 48 is in the shape of a two sided cant,
that is, when viewed in cross-section in a plane perpendicular to
axis D, shaft 48 is obround with the two parallel sides of the
obround corresponding to a pair of parallel planar faces 50 and the
oppositely disposed curved ends of the obround corresponding to a
pair of threaded uniformly curved surfaces 52. A base 54 is mounted
to the non-threaded end of shaft 48.
[0029] Male coupling shaft 48 may be inserted or removed from
sleeve 40 when shaft 48 is rotated about axis D, so that threaded
surfaces 52 are aligned with, so as to be exposed through, cutouts
42. The result is that the threads on threaded surfaces 52 are
disengaged from the threads on threaded lands 44. Thus, shaft 48 is
inserted in direction C into sleeve 40 by aligning planar faces 50
so as to slide over threaded lands 44 until shaft 48 is completely
journalled within sleeve 40. Shaft 48 may then be rotated in
direction E about axis D by 90 degrees so as to mate the threads on
surfaces 52 with the threads on lands 44. With the threads so
engaged, the receiver coupler pair, which mates male coupling shaft
48 to female receiver coupler 38, are releasably locked
together.
[0030] In one embodiment, a pin 53 or like protrusion seen in FIG.
5 on base 54 engages, so as to slide along, arcuate groove 55 on
collar 46 as base 54 is mated against collar 46. The end 55a of
groove 55 arrests rotation of base 54 relative to collar 46 by
engaging pin 53. End 55a acts as a stop to prevent over-tightening
and to ensure and ease correct alignment of the receiver coupler
pair once mated so that locking 56 aligns with locking aperture
58.
[0031] Spring loaded locking pin 56 in collar 46 releasably engages
corresponding locking aperture 58 on base 54 when the threads on
the pair of curved surfaces 52 and the pair of threaded lands 44
are uniformly aligned. To release locking pin 56 from engagement
from locking aperture 58, locking pin 56 is retracted in direction
F by a user pulling back on thumb operated button 60, mounted
adjacent the upper surface of annular collar 46, against the return
biasing force of resilient spring 51 housed within a spring housing
62. It is understood that, although spring housing 62 is shown as
being exposed on the upper surface of forestock 12a, that spring
housing 62 may also be recessed into a corresponding cavity in
forestock 12a so that for aesthetic purposes, only thumb operated
button 60 is exposed on the upper surface of forestock 12a.
[0032] As seen in FIGS. 6 and 7, receiver 14 is a housing
comprising base 54, left side wall 64, right side wall 66, the
trigger housing 68, and the internal firing mechanism between
trigger 70 and the firing pins 71. Except as set out herein, the
internal firing mechanism may have parts from a conventional
receiver assembly such as sold by Browning.TM. under the trademark
Citori as would be well known to, and well understood by, a person
skilled in the art. A Browning Citori shotgun is shown in exploded
view in FIG. 1a with the firing mechanism partially cut-away. On
each of the left and right side walls, a circular recess 72 may be
provided with provides no function other than to receive an
embossed coin bearing the applicant's trademark.
[0033] Male coupling shaft 48 is itself hollow so as to receive
journalled therethrough a threaded bolt 74. Bolt 74 is journalled
through borehole 48a in shaft 48 so as to protrude through aperture
54a in base 54. The threaded end of bolt 74 protruding through
aperture 54a mounts the internal firing mechanism rigidly between
the side walls and rearwardly against base 54. In one embodiment,
side walls 64 and 66 are rigidly mounted to base 54 by bolting
corresponding side walls to the corresponding flanges of base 54
using bolt holes 54b.
[0034] Barrel group 16 is quickly dismountable from between
sidewalls 73 on receiver 14 by the operation of a barrel release
trigger 76. As better seen in FIG. 8a, trigger 76 is slidably
mounted on pin 76a. Pin 76a is immediately forward of trigger
housing 68. Release trigger 76 has an elongated aperture 76b
through each of two bifurcated sides 78. Aperture 76b permits
slidable movement of release trigger 76 in direction rearwardly
past trigger guard 68. Trigger 76 is resiliently urged forwardly,
by a spring or other similar well known means (not shown). Nylon
inserts 76c are mounted on the forward upper surface 76d of trigger
76. Inserts 76c provide frictionless bearing surfaces between
surface 76d and the lower surface of base 86 so that trigger 76
translates smoothly parallel to base 86.
[0035] An elongated locking block 80, which is generally
tee-shaped, has an elongated slide portion 80a and a transverse
portion 80b. A recess 82 on the underside of transverse portion 80b
engages projections 84 on the upper surface of release trigger 76.
Elongated slide portion 80a extends rearwardly into the Citori
component housing between side walls 64 by sliding over the base of
the housing above trigger guard 68. Sliding movement of trigger 76
also slides block 80.
[0036] Receiver 14 has a lower planar base 86 between side wall
extensions 64' and 66'. Side wall extension 64' and 66' extend
forwardly of side walls 64 and 66 respectively and are coplanar
therewith. They support at their forward end a hinge pin 88.
[0037] Symmetrically positioned beneath the breech end 16a of the
barrel 16 is locking lug 90, which has formed at its forward end a
hinge-pin recess 90a. Positioned rearwardly of lug 90 are a pair of
transversally spaced apart locking arms 92 which depend from the
breech end 16a and which have a rearwardly facing locking notch 92a
formed therein.
[0038] Disassembly of the barrels 16 from the receiver 14 requires
that the operator slidably move release trigger 76 rearwardly
toward trigger guard 68. Engagement of projections 84 on the upper
surface of trigger 76 with recess 82 on the underside of transverse
portion 80b of locking block 80 co-operatively also moves block 80
toward trigger guard 68. This movement withdraws the forward edge
94 of transverse portion 80b from engagement with locking notch 92a
formed in locking arms 92 as forward edge 94 is withdrawn into slot
75. As hinge-pin recess 90a of locking lug 90 is still in
engagement with hinge pin 88, barrels 16 may be rotated in a
downwardly arcuate direction, in direction H, to free locking arms
92 from base 86 of receiver 14. Once locking arms 92 are freed, the
barrels 16 may then be drawn rearwardly in a slightly upward
direction to release recess 90a in locking lug 90 from engagement
with hinge pin 88.
[0039] A cocking wing 100 is pivotally mounted about pin 76a within
elongate aperture 80c of block 80 and between sides 78 of release
trigger 76. Pin 76a is journalled through a laterally extending
hole 102 in cocking wing 100. Upper end 100a of cocking wing 100
extends upwardly into the Citori.TM. component housing between side
walls 64 in the manner of a conventional Citori.TM. cocking wing.
The lower forwardly extending end 100b of cocking wing 100 extends
through channel 75a below slot 75 so as to be engaged, in the
manner of a conventional Citori.TM. cocking wing, by the end of
barrel group 16 as the barrels are pivoted about pin 88 into the
closed position. Cocking wing 100 is pivoted about pin 76a as the
barrels are closed, that is, as the barrels engage end 100b of
cocking wing 100.
[0040] As will be apparent to those skilled in the art in the light
of the foregoing disclosure, many alterations and modifications are
possible in the practice of this invention without departing from
the spirit or scope thereof.
* * * * *