US3750319A - Firing pin stop for a firearm - Google Patents

Firing pin stop for a firearm Download PDF

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Publication number
US3750319A
US3750319A US00193502A US3750319DA US3750319A US 3750319 A US3750319 A US 3750319A US 00193502 A US00193502 A US 00193502A US 3750319D A US3750319D A US 3750319DA US 3750319 A US3750319 A US 3750319A
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US
United States
Prior art keywords
firing pin
safety
latch
passage
frame member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00193502A
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English (en)
Inventor
R Roy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CFPI Inc A CORP OF
COLT LICENSING A DE Ltd PARTNERSHIP LP
CII Holdings Inc
Original Assignee
Colt Industries Operating Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Colt Industries Operating Corp filed Critical Colt Industries Operating Corp
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Publication of US3750319A publication Critical patent/US3750319A/en
Assigned to COLT INDUSTRIES, INC., A CORP. OF PA reassignment COLT INDUSTRIES, INC., A CORP. OF PA MERGER (SEE DOCUMENT FOR DETAILS). 10-28-86 Assignors: CENTRAL MOLONEY INC., A CORP. OF DE, COLT INDUSTRIES OPERATING CORP. A CORP. OF DE
Assigned to CFPI INC. reassignment CFPI INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CII HOLDINGS INC., A CORP. OF DE
Assigned to CII HOLDINGS INC. reassignment CII HOLDINGS INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: COLT INDUSTRIES INC., A CORP. OF PA.
Assigned to COLT LICENSING LIMITED PARTNERSHIP, A DE LIMITED PARTNERSHIP reassignment COLT LICENSING LIMITED PARTNERSHIP, A DE LIMITED PARTNERSHIP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CFPI INC., A CORP. OF DE
Assigned to CREDITANSTALT-BANKVEREIN reassignment CREDITANSTALT-BANKVEREIN SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLT'S MANUFACTURING COMPANY, INC.
Anticipated expiration legal-status Critical
Assigned to CII HOLDINGS INC., A CORP. OF DE, CFPI INC., A CORP. OF DE reassignment CII HOLDINGS INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: COLT LICENSING LIMITED PARTNERSHIP, A L.P. OF DE
Assigned to COLT'S MANUFACTURING COMPANY, INC. reassignment COLT'S MANUFACTURING COMPANY, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CREDITANSTALT-BANKVERIN
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/64—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers

Definitions

  • a primary object of this invention is to provide an improved safety device for a firemarm to minimize any possibility of inadvertently firing during reloading.
  • Another object of this invention is to provide such an improved safety device which provides continuous control of the firing pin under normal conditions and is particularly suited to permit facile disassembly of the firing pin and associated components.
  • FIG. I is a side view, partly broken away and partly in section, showing a hand gun incorporating this invention
  • FIG. 2 is a sectional view, partly broken away, taken generally along line 2--2 of FIG. I;
  • FIG. 3 is an isometric view of a firing pin stop of this invention.
  • the piston 10 is shown having an elongated frame member or slide assembly 12 including a slide 14 and barrel 16 mounted for longitudinal reciprocating movement on a receiver 18.
  • the pistol 10 may be assumed to be a magazine fed, gas recoil operated automatic pistol of a well-known tupe wherein the slide assembly 12 is driven rearwardly by the by-products of combustion upon firing of a round in a chamber 20 of the barrel 16 to automatically extract and eject a spent cartridge case and cock a spring biased hammer 22 during rearward movement of the slide 14 relative to the barrel l6 and receiver 18.
  • theslide I4 Upon return slide movement toward a forward position to reengage the b arrel l6 and condition the pisto 10 for the firing of'the next round, theslide I4 automatically strips a top cartridge from a magazine, not shown, and chambers that round in the barrel 16.
  • an elongated firing pin 24 such as that shown in FIG. 1 is thrust forwardly to detonate a primer, not shown, of the chambered round and automatically effect the abovedescribed rearward movement'o'f the recoiling mass.
  • the pin 24 is received in a longitudinally extending passage 26 formed in the slide 114 and is reciprocable between a rear operative limit position, represented by broken lines at 28, and a forward cartridge firing position shown in full lines in FIG. I.
  • the firing pin 24 shown is of an inertia type requiring a full hammer drop to drive the firing pin from its rear limit position to its forward cartridge firing position.
  • the pin 24 is continuously biased rearwardly toward its rear operative limit position by a coil spring 30 received in the passage 26.
  • One end of the spring 30 seats against the body of the slide 14 adjacent a forward reduced end of the passage 26 facing the barrel chamber 20,. and an opposite end of thespring 30 seats against a radial flange 32 circumferentially extending about the pin 24 intermediate its opposite ends.
  • a conventional rotary locking safety 34 is shown supported in the slide 14 at an extreme rear end of the firing pin passage 26 for rotation about an axis extending transversely to the longitudinal axis of slide 14.
  • Rotary safety 34 may be operated in a customary manner by manual manipulation of an operating lever, not shown, between a detented safety of condition (illustrated in FIG. 1) and a detented safety on" condition displaced angularly clockwise from that shown in the drawing and wherein a solid metal block portion of the rotary safety 34 is positiioned in obstructing relation between hammer 22 and pin 24, isolating the pin from the impact of any hammer drop.
  • the firing pin 24 is shown formed with an intermediate portion 36 of reduced cross section relative to the flange 32 and a rearwardly spaced coaxial radial flange 38 of generally equal diameter to that of flange 32 and which provides a radial shoulder 40 engageable with a stop or latch 42 mounted in the slide 14 in overlying relation to the passage 26 for maintaining control oventhe pin 24 and ensuring its being in continuous operative engagement with the safety 34 under normal conditions.
  • the latch 42 is supported within a relatively enlarged latch chamber 44 of generally rectangular cross section shown communicating with the firing pin passage 26 and disposed immediately below a dove-shaped groove 46 extending transversely across an upper rear surface of theslide 14 with a correspondingly shaped base 48 of a rear sight 50 being shown mounted with the groove 46 in the slide 14.
  • a relieved cutout portion 52 is formed in a lower rear wall portion of the latch 42 providing a rearwardly facing, vertically extending planar stop surface 54 engageable withe the radial shoulder 40 of the pin 24 to positively limit its forward travel and preclude firing pin movement beyond the forward cartridge firing position or the forward operative limit position shown in full lines in FIG. 1.
  • the stop surface 54 of the latch 42 is shown (FIG. 2) having an arcuate central lower edge 56 generally corresponding to the upper surface contour of the reduced intermediate portion 36 of the pin 24 between the flanges 32, 38 to permit the firing pin 24 to be freely driven forwardly under hammer impact and returned under theinfluence of its sprin 30 without binding up on the latch 42.
  • the pin 24 With the hamemr 22 in its illustrated dropped position, the pin 24 will normally seat against the hammer 22, it being understood that the firing pin 24 is shown for illustrative purposes in its cartridge firing position. Upon cocking the hammer 22, the spring bias of the firing pin 24 will be understood to move the pin rearwardly, a discrete distance from its seated position against the hammer 22, to an extent limited by seating engagement of the firing pin 24 with the safety 34.
  • the latch 42 under normal conditions will continuously maintain the rear end of the firing pin 24 in alignment with and confined within a contoured firing pin opening 58 formed in the locking safety 34 irrespective of its being in safety on" or safety off conditions, thereby to preclude any overtravel of the firing pin 24 relative to its locking safety 34.
  • the above-described latch construction incorporated within the firearm of this invention ensures that the firing pin 24 will not he accidentally locked by activation of the safety 34 to a safety on" condition, but rather will always be conditioned for rearward movement into the firing pin opening 58 within the confines of the safety 34 upon any force being applied to the striker 24A projecting beyond the passage 26.
  • a depending actuator or post 60 is shown preferably formed as an integral part of the latch 42 extending downwardly in offset relation to its arcuate lower edge 56 for receipt within a generally vertically extending passage 62 of slightly enlarged size relative to the post 60 and having an exposed opening in an upper interior wall surface 64 of the slide 14.
  • a recess 66 is shown formed in an upper portion of the latch 42 in generally aligned relation to the depending post 60 providing a seat for one end of a coil spring 68 having its opposite end seated against the base 48 of the rear sight 50.
  • the slide 14 is removed from the receiver 18 whereupon the post 60 is exposed so as to simply be pressed inwardly to move the stop surface 54 upwardly into the clearance within the latch chamber 44 a distance sufficient to permit the pin 24 to be moved forwardly in the passage 26 against the bias of its spring 30 and allow the safety 34 to be removed laterally outwardly relative to the slide 14.
  • a rear collar 70 on the firing pin 24 may be of additional benefit for, upon depressing the firing pin 24 forwardly with the latch 42 retracted, the collar 70 may be removed forwardly with the latch 42 retracted, the collar 70 may be moved forwardly of the latch 42 which upon being released engages the collar 70 to temporarily retain the pin 24 in noninterfering relation to the safety 34 which then may be quickly and easily withdrawn.
  • the post 60 of the latch 42 may once again be depressed, and the compressed spring 30 will assist in forcing the pin 24 rearwardly to be removed from the slide 14.
  • the front face of the latch 42 is shown preferably chamfered at 72 to facilitate removal of the firing pin 24.
  • Reassembly of the firing pin 24 and safety 34 is simply accomplished by a reverse sequence of the above described steps.
  • Complete removal of the latch 42 and spring 30 from the latch chamber 44 is accomplished by lateral displacement of the rear sight 50 and removal from the slide 14.
  • the spring biased firing pin stop of this invention provides continuous control of the firing pin and effectively minimizes any possibility of firing pin overtravel and potentially lethal consequences during releading of the firearm.
  • a spring biased firing pin stop of the above-described construction will serve to continuously maintain the firingpin in engagement with the safety under all normal conditions and will ensure against any person handling the firearm of being misled into a feeling of false security when the safety is in on condition.
  • the design of the disclosed construction wherein the latch is supported below the rear sight carried on the slide covers any machining required in that area containing the latch. As a result, no protrusions, pin holes or other machining or' exterior structural components are in evidence indicative of the additional structure incorporated within the slide which remains aesthetically pleasing.
  • a safety device for a firearm comprising a frame member having an elongated firing pin pasage, a locking safety mounted on the frame member to extend transversely across a rear end of the firing pin passage and supported for rotary movements between safety on and safety of conditions, the safety having a firing pin opening therein communicating with the rear end of the firing pin passage in both safety on and safety off conditions, an elongated, hammer actuated firing pin received in the passage of the frame member for reciprocating movements between forward and rear operative limit positions, the firing pin being continuously biased toward its rear operative limit position for hammer engagement, the firing pin having an abutment shoulder formed on the firing pin, and a firing pin stop mounted in the frame member and projecting into its firing pin passage in interfering relation to the path of movement of the firing pin abutment shoulder, the firing pin stop being engageable with the abut ment shoulder to define the forward operative limit position of the firing pin, the firing pin stop and the abutment shoulder of the firing pin jointly serving to maintain a portion of the firing pin
  • the frame member includes a chamber communicatiang with the firing pin passage, wherin a latch is received within thechamber for movement toward and away from the firing pin passage, and wherein a spring is receiverd within the latch chamber continuously urging the latch toward the firing pin passage, the latch having a portion thereon constituting said firing pin stop engageable with the firing pin abutment shoulder.
  • the frame member includes a rear sight mounted on an upper rear surface of the frame member, and wherein the latch chamber is disposed in underlying relation to the rear sight with the rear sight serving as a closure for the latch chamber, the latch spring being seated against the rear sight and continously uring the latch toward the firing pin passage.
  • the frame member includes an opening extending from the latch chamber through the frame member, and wherein a manually operable actuator is recieved within the frame member opening and is operatively connected to the latch for moving the latching against the bias of the latch spring force upon operating the actuator and permitting the firing pin stop to be moved forwardly of its forward operative limit position into disengaged relation to the locking safety for disassembly of the locking safety and removal of the firing pin from its passage.
  • a safety device for a firearm comprising a frame member having an elongated firing pin passage, a locking safety supported on the frame member and movable between safety on" and safety off” conditions, the safety having a firing pin opening therein communicating with the firing pin passage in both safety on" and safety of conditions, an elongated, hammer actuated firing pin received in the passage of the frame member for reciprocating movements between forward and rear operative limit positions, the firing pin being continuously biased toward its rear operative limit position for hammer engagement and having an abutment shoulder formed on the firing pin, and a firing pin stop mounted in the frame member and projecting into its firing pin passage in interfering relation to the path of movement of the firing pin for engagement with its abutment shoulder and defining its forward operative limit position, the firing pin stop serving to continuously maintain a portion of the firing pin within the firing pin opening of the safety

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Lowering Means (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Electron Beam Exposure (AREA)
US00193502A 1971-10-28 1971-10-28 Firing pin stop for a firearm Expired - Lifetime US3750319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19350271A 1971-10-28 1971-10-28

Publications (1)

Publication Number Publication Date
US3750319A true US3750319A (en) 1973-08-07

Family

ID=22713900

Family Applications (1)

Application Number Title Priority Date Filing Date
US00193502A Expired - Lifetime US3750319A (en) 1971-10-28 1971-10-28 Firing pin stop for a firearm

Country Status (6)

Country Link
US (1) US3750319A (enrdf_load_stackoverflow)
BE (1) BE790322A (enrdf_load_stackoverflow)
DE (1) DE2250650A1 (enrdf_load_stackoverflow)
FR (1) FR2157913A1 (enrdf_load_stackoverflow)
GB (1) GB1389756A (enrdf_load_stackoverflow)
IT (1) IT969939B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658529A (en) * 1984-08-15 1987-04-21 William Bertolini Firing pin safety mechanism
US5259138A (en) * 1992-08-03 1993-11-09 Colt's Manufacturing Company Inc. Firing mechanism blocking system
US6405470B1 (en) 2000-06-14 2002-06-18 Travis R. Strahan Firearm safety lock
US6675519B2 (en) * 1999-12-03 2004-01-13 Sako Oy Locking method and arrangement for a gun
US20050011100A1 (en) * 2002-01-10 2005-01-20 Norbert Fluhr Safety devices for firearms
US20080148618A1 (en) * 2004-04-15 2008-06-26 Sturm, Ruger & Company, Inc. Method for blocking discharge of firearm
US20100170129A1 (en) * 2008-12-31 2010-07-08 Smith & Wesson Corp. Firearm having nonmetallic components
US11313646B1 (en) * 2021-02-26 2022-04-26 Kimber Ip, Llc Slide having rear sight fastener assembly for pistols

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536526A1 (fr) * 1982-11-24 1984-05-25 Termet Pierre Dispositif de securite pour appareil actionne a poudre
FR2642828B1 (fr) * 1989-02-03 1994-04-01 Termet Pierre Dispositif de securite a la percussion en cas de chute d'appareil actionne par l'explosion d'une cartouche

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658529A (en) * 1984-08-15 1987-04-21 William Bertolini Firing pin safety mechanism
US5259138A (en) * 1992-08-03 1993-11-09 Colt's Manufacturing Company Inc. Firing mechanism blocking system
US6675519B2 (en) * 1999-12-03 2004-01-13 Sako Oy Locking method and arrangement for a gun
US6405470B1 (en) 2000-06-14 2002-06-18 Travis R. Strahan Firearm safety lock
US20050011100A1 (en) * 2002-01-10 2005-01-20 Norbert Fluhr Safety devices for firearms
US7581345B2 (en) * 2004-04-15 2009-09-01 Sturm, Ruger & Company, Inc. Method for blocking discharge of firearm
US20080148618A1 (en) * 2004-04-15 2008-06-26 Sturm, Ruger & Company, Inc. Method for blocking discharge of firearm
US20100170129A1 (en) * 2008-12-31 2010-07-08 Smith & Wesson Corp. Firearm having nonmetallic components
US8549782B2 (en) * 2008-12-31 2013-10-08 Smith & Wesson Corp. Firearm having an indexing mechanism
US8789303B2 (en) 2008-12-31 2014-07-29 Smith & Wesson Corp. Firing pin blocking safety
US20140331536A1 (en) * 2008-12-31 2014-11-13 Smith & Wesson Corp. Yoke And Cylinder Retaining Mechanism
US9488432B2 (en) * 2008-12-31 2016-11-08 Smith & Wesson Corp. Yoke and cylinder retaining mechanism
US9777982B2 (en) 2008-12-31 2017-10-03 Smith & Wesson Corp. Shrouded barrel and sight for revolver
US11313646B1 (en) * 2021-02-26 2022-04-26 Kimber Ip, Llc Slide having rear sight fastener assembly for pistols
WO2022182718A1 (en) * 2021-02-26 2022-09-01 Kimber Ip, Llc Slide having rear sight fastener assembly for pistols

Also Published As

Publication number Publication date
FR2157913A1 (enrdf_load_stackoverflow) 1973-06-08
BE790322A (fr) 1973-02-15
GB1389756A (en) 1975-04-09
DE2250650A1 (de) 1973-05-03
IT969939B (it) 1974-04-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: COLT INDUSTRIES, INC., A CORP. OF PA

Free format text: MERGER;ASSIGNORS:COLT INDUSTRIES OPERATING CORP. A CORP. OF DE;CENTRAL MOLONEY INC., A CORP. OF DE;REEL/FRAME:004740/0482

Effective date: 19870706

AS Assignment

Owner name: CFPI INC., DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CII HOLDINGS INC., A CORP. OF DE;REEL/FRAME:005253/0543

Effective date: 19891116

AS Assignment

Owner name: CII HOLDINGS INC., DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:COLT INDUSTRIES INC., A CORP. OF PA.;REEL/FRAME:005240/0825

Effective date: 19891122

AS Assignment

Owner name: COLT LICENSING LIMITED PARTNERSHIP, 1100 NORTH MAR

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CFPI INC., A CORP. OF DE;REEL/FRAME:005261/0928

Effective date: 19900313

AS Assignment

Owner name: CREDITANSTALT-BANKVEREIN

Free format text: SECURITY INTEREST;ASSIGNOR:COLT S MANUFACTURING COMPANY, INC.;REEL/FRAME:005277/0057

Effective date: 19900322

AS Assignment

Owner name: CII HOLDINGS INC., A CORP. OF DE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:COLT LICENSING LIMITED PARTNERSHIP, A L.P. OF DE;REEL/FRAME:005697/0032

Effective date: 19900313

Owner name: CFPI INC., A CORP. OF DE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:COLT LICENSING LIMITED PARTNERSHIP, A L.P. OF DE;REEL/FRAME:005697/0032

Effective date: 19900313

AS Assignment

Owner name: COLT S MANUFACTURING COMPANY, INC., CONNECTICUT

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CREDITANSTALT-BANKVERIN;REEL/FRAME:007169/0804

Effective date: 19940928