Means for mounting cylinder to frame of small hand gun
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0961979
(1978-11-20)
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발명자
/ 주소 |
- Casull Richard J. (P.O. Box 276 Freedom WY 83120)
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인용정보 |
피인용 횟수 :
7 인용 특허 :
0 |
초록
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Improved means for releasably locking the cylinder of a small, single action revolver in proper rotatable position within the frame of the revolver. A cylinder axis pin is adapted to extend through a first bore in the front portion of the frame, then through a central bore in the cylinder, and into
Improved means for releasably locking the cylinder of a small, single action revolver in proper rotatable position within the frame of the revolver. A cylinder axis pin is adapted to extend through a first bore in the front portion of the frame, then through a central bore in the cylinder, and into a bore in the rear portion of the frame which is axially aligned with the first bore. A counterbore is provided in the front portion of the frame extending inwardly into the front portion of the frame coaxially with the first bore therein. A lip extends downwardly over the top portion of the counterbore at its open end, i.e., at the front or barrel side of the front portion of the frame. A cylindrical coil spring is positioned in the counterbore so that the cylinder axis pin can slide longitudinally through the open cylindrical portion of the spring. A lug extends from the cylindrical surface of the pin and is adapted to slide past the lip at the opening of the counterbore and push against the coil spring when the pin is pushed through the first bore and the bore in the cylinder, with the lug extending downwardly away from the lip. When the lug on the pin has been pushed past the lip and into the counterbore, the pin is rotated. The coil spring biases the lug into firm contact with the lip at the opening of the counterbore, thereby releasably locking the pin and, thus, the cylinder in place.
대표청구항
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In a small, single action revolver of the type comprising a frame including a handle and a barrel, a cylinder having a plurality of cartridge-receiving chambers and being rotatably mounted in the frame by a cylinder axis pin which extends through a central bore in the cylinder and engages axially al
In a small, single action revolver of the type comprising a frame including a handle and a barrel, a cylinder having a plurality of cartridge-receiving chambers and being rotatably mounted in the frame by a cylinder axis pin which extends through a central bore in the cylinder and engages axially aligned bores, respectively, in the front and rear portions of the frame, and a hammer mounted to the frame for reciprocal, pivotal movement between fired and cocked positions, with said cylinder being adapted for partial rotation each time the hammer is pivoted from its fired position to its cocked position, the improvement comprising a particular cylinder axis pin and cooperating means for releasably locking the cylinder axis pin in engagement with the frame of the revolver, said particular cylinder axis pin comprising an elongate, substantially cylindrical pin having a lug extending from the cylindrical surface of the pin in a direction substantially normal to the cylindrical axis of said pin, and said cooperating means for releasably locking the cylinder axis pin in engagement with the frame comprising a counterbore extending inwardly, coaxially with said aligned bores in said frame, into the front portion of the frame from the front or barrel side thereof, with said counterbore having a radius at least equal to the radius of said bore in said front portion plus the height of said lug extending from the cylindrical surface of said pin, a downwardly extending lip at the front or barrel side of said front portion of said frame, said lip covering the top portion of the open end of said counterbore without covering any portion of the open end of said bore in said front portion of the frame; and a cylindrical coil spring positioned in said counterbore, whereby when the cylinder is placed in the frame in axial alignment with said bores in the front and rear portions of the frame, respectively, and when said pin is aligned with said bores with the lug extending in a downward direction away from the lip covering the top portion of said counterbore, said pin can be inserted from the front or barrel side of said front portion through the coil spring in said counterbore so as to extend through the bore in said front portion, the bore in said cylinder and into the bore in said rear portion, and the pin is releasably locked in engagement with the frame by pushing the pin sufficiently into said bores so that said lug thereon pushes against said coil spring and slides past said lip into said counterbore, whereupon the pin is rotated so that when the pin is released, the spring pushes the lug thereon into contact with said lip.
이 특허를 인용한 특허 (7)
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Zajk, Joseph J., Cylinder latching mechanism for revolver.
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Domian Robert E. (Somers CT), Firearm.
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Dionne, Sylvain, Firearm conversion kit not requiring a dedicated fastening tool.
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Donnelly Douglas F., Handle design for revolvers.
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Stolz Yves (Bourguillards 10 CH-2072 Saint-Blaise CHX), Miniature firearm.
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Zajk,Joseph J., Revolver.
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Sylvain Dionne CA, Two-piece barrel for low-energy training ammunition.
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