US3724112A - Firing pin mechanism for firearms - Google Patents

Firing pin mechanism for firearms Download PDF

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Publication number
US3724112A
US3724112A US00160434A US3724112DA US3724112A US 3724112 A US3724112 A US 3724112A US 00160434 A US00160434 A US 00160434A US 3724112D A US3724112D A US 3724112DA US 3724112 A US3724112 A US 3724112A
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US
United States
Prior art keywords
firing
pins
yoke
housing
firing pins
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
US00160434A
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English (en)
Inventor
D Bullis
J Linde
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.)
Remington Arms Co LLC
Original Assignee
Remington Arms Co LLC
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 Remington Arms Co LLC filed Critical Remington Arms Co LLC
Application granted granted Critical
Publication of US3724112A publication Critical patent/US3724112A/en
Anticipated expiration legal-status Critical
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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/18—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns
    • 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
    • F41A17/66—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers automatically operated, i.e. operated by breech opening or closing movement
    • F41A17/68—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers automatically operated, i.e. operated by breech opening or closing movement by breakdown action

Definitions

  • ABSTRACT A unique floating-type forwardly biased firing pin arrangement for firearms.
  • the system is designed to prevent breakage of the pins resulting from dryfiring the gun.
  • the firing pins are striker or hammer [22] Filed:
  • the hammer-strikable ends of the firing pins lie forward of the end face of the receiver housing when the barrel chambers are empty, so that they become inaccessible to a falling hammer.
  • the energy of a falling hammer is completely absorbed by the housing.
  • the firing pins remain unscathed.
  • the guns may be repeatedly dry-fired" without any possibility of breaking the firing pins.
  • the strikable ends of the pins are accessible to the hammers only when the chambers are loaded.
  • the fir ing pins are spring-urged forward so that the initiating tips of the pins protrude into the empty chambers.
  • the pins are forced backward against the force of the spring by the ammunition allowing the hammer-engageable end of the pins to protrude beyond the housing face where they may be struck by the falling hammers.
  • the firing pins are not hammer or striker initiated
  • the firing pins do not have the floating-type construction of the present system, but rather are locked against forward movement until initiation is desired.
  • the other guns are of the lever-action variety, where our system is currently designed for toptang break-action release.
  • firing pins of the present invention are of floating-type" construction, they act independently of each other.
  • FIG. 1 is a side viewof the receiver of a break-action firearm containing the firing pin mechanism of this invention
  • FIG. 2 is an isometric view of the housing of the firing pin mechanism of this invention.
  • FIG. 3 is a cutaway view taken along Lines 33 of FIG. 2, showing the housing containing the firing pins and yoke of the invention.
  • the invention is for a dryfiring non-breakable firing pin mechanism for firearms that is hammer or striker initiated.
  • the mechanism comprises a receiver having a firing pin housing disposed therein.
  • a barrel is attached to the receiver at its breech end.
  • a firing pin is disposed in the housing.
  • the firing pin has a rearward strikable end and a forward initiating end.
  • the firing pin is biased forward so that the strikable end of the pin lies forwad of the end face of the housing when the barrel does not contain ammunition. In this position, the striker or hammer will never contact the firing pin and the initiating end of the pin will protrude into the barrel chamber.
  • the ammunition When the chamber is loaded, the ammunition will force the firing pin rearward so that the strikable end now protrudes beyond the end face of the housing where it may be struck by a falling hammer.
  • two firing pins are connected within the housing by means of a convoluted yoke member.
  • the pins act independently of each other by allowing the yoke to slightly pivot about its central portion between the two pins.
  • the yoke is biased forward which in turn urges the pins toward the barrels.
  • FIG. 1 a receiver 1 of a firearm is shown containing the firing pin mechanism of this invention.
  • the mechanism is shown for use in a break-action, double-barrelled gum-hence, there are two firing pins, 14 and 15, respectively. These pins are disposed within slots 4 and 5 in housing 2, as shown in FIGS. 2 and 3.
  • Firing pin 14 is slidable in slot 4, and pin 15 is slidable in slot 5.
  • the firing pin 14 has an initiating end and a strikable end 11.
  • Pin has an initiating end 12 and a strikable end 13.
  • the strikable ends 11 and 13, respectively, lie below the end face 27 of the housing 2, when the barrels (not shown) are empty. When the barrels are loaded, the strikable ends of the firing pins protrude past end face 27, as depicted in FIG. 3, where they can be struck by a falling hammer (not shown).
  • the firing pins are joined by yoke 9 which has a U- shaped center 9a with two extending arms 9b and 9c, respectively.
  • the extending arms are slotted at their respective ends where they engage the firing pins through two pairs of guide discs 21 and 22, respectively.
  • a yoke rod 3 slidably extends through housing 2 and is attached at its forward end 3b to the yoke 9.
  • a spring 23 fits over rod 3 and is disposed in slot 24 of the hous ing. Spring 23 urges the yoke forward and consequently the firing pins as well. The yoke and firing pins are limited in their forward direction by rod which laterally extends across the housing 2 through slot 19.
  • the firing pins are allowed to come forward a sufficient distance so that their initiating tips 10 and 12, respectively, extend past the breech face 28 of receiver 1, as shown in FIG. 1.
  • the pins act independently of each other because yoke 9 is free to slightly pivot about yoke rod 3 at the rods forward end 3b and also because the thickness of the yoke is less than the distance between the two pairs of guide discs 21 and 22, respectively, on the firing pins.
  • Hole 18, through which rod 3 extends into yoke section 9a is made oversized, allowing yoke 9 to move with respect to rod 3. This movement, although slight, is enough to produce a floating" effect for the firing pins.
  • Each pin may move longitudinally forward or backward within the housing without influencing the other pin.
  • the ammunition In the loaded condition, the ammunition will force the pins backward against the forward urging of spring 23.
  • the spring force is not very strong so that the initiating tips of the pins will not tend to mark the ammunition primers.
  • Receiver 1 has a top tang portion upon which the locking lever 25 is situated.
  • the lever 25 is made to pivot about pin 29. In so pivoting, the lever will force the retainer 6 backward (not shown).
  • the retainer 6 has a slot 26 at its lower end (FIG. 3) which fits over rod 3.
  • a spring 7 is positioned between the retainer 6 and a lock nut 8 screwed onto rod 3 at its rearward end 30.
  • the retainer 6 will move backward, compressing spring 7. This, in turn, will cause rod 3 to move rearward from the housing. Consequently, the tips of the firing pins, 10 and 12, will be retracted below the breech face 28 of the receiver.
  • the retainer 6 may be constructed to act directly upon the lock nut 8, if so desired, thus eliminating spring 8.
  • Spring 8 is used herein for tolerance adjustment.
  • a latch extending from the breech face may be provided to release the pins when the barrels are rotated to their closed position, allowing the pins to come forward again.
  • the present firing pin system has been shown for a double-barrelled, break-action shotgun, the scope of the invention is considered to be much broader than that, since the present design can be employed in single or multiple barrelled guns of all types using hammer or striker initiation.
  • the figures are deemed to be merely exemplary, and are presented for the purpose of showing the basic concept of a forwardly-biased firing pin of the dry firing type.
  • a hammer or striker-initiated firing pin mechanism for a double-barreled firearm comprising:
  • a receiver having a breech face at its forward breech end
  • a firing pin housing disposed in the receiver and having a rearward end face
  • a pair of barrels attached to the breech end of said receiver having chambers for receiving and supporting ammunition
  • each of said pins having a rearward strikable end and a forward initiating end;
  • a yoke disposed within the housing operatively connected to said two firing pins
  • a yoke rod attached to said yoke between the firing pins and extending rearwardly past the rearward end face of said housing;
  • biasing means positioned in said housing in abutting relationship with the yoke to urge the yoke and the connected firing pins forwardly toward said barrels so that the forward initiating ends of said firing pins protrude past the breech face of said receiver into said barrel chambers when said chambers are without ammunition, thus positioning the strikable rear ends of said firing pins forwardly of the rearward end of said housing;
  • a firing pin mechanism as recited in claim 1 in which said firing pins are angularly mounted relative to one another so that the forward initiating ends are diverging laterally as well as vertically, said yoke being a convoluted member having a U-shaped central portion to which said yoke rod is loosely attached and a pair of arms extending in opposite directions to which said firing pins are loosely connected.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US00160434A 1971-07-07 1971-07-07 Firing pin mechanism for firearms Expired - Lifetime US3724112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16043471A 1971-07-07 1971-07-07

Publications (1)

Publication Number Publication Date
US3724112A true US3724112A (en) 1973-04-03

Family

ID=22576878

Family Applications (1)

Application Number Title Priority Date Filing Date
US00160434A Expired - Lifetime US3724112A (en) 1971-07-07 1971-07-07 Firing pin mechanism for firearms

Country Status (5)

Country Link
US (1) US3724112A (fr)
JP (1) JPS527680B2 (fr)
BE (1) BE785799A (fr)
DE (1) DE2230619B2 (fr)
IT (1) IT960638B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6571500B2 (en) * 2000-11-15 2003-06-03 Terence J. Keenan Dry-fire training pistol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000575A (en) * 1975-05-08 1977-01-04 Sturm, Ruger & Co. Inc. Means for retraction of lower firing pin of over-and-under firearm

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1834544A (en) * 1930-11-10 1931-12-01 Erich O Klebe Shotgun
US2598885A (en) * 1947-06-18 1952-06-03 Vermot Gaud & Cie Ets Stock and barrel connection in guns
US3392470A (en) * 1965-11-26 1968-07-16 James Kevin Patrick Vincent Colombus Kavanagh Slidable barrel firearm with safety preventing opening of the firearm while cocked

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1834544A (en) * 1930-11-10 1931-12-01 Erich O Klebe Shotgun
US2598885A (en) * 1947-06-18 1952-06-03 Vermot Gaud & Cie Ets Stock and barrel connection in guns
US3392470A (en) * 1965-11-26 1968-07-16 James Kevin Patrick Vincent Colombus Kavanagh Slidable barrel firearm with safety preventing opening of the firearm while cocked

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6571500B2 (en) * 2000-11-15 2003-06-03 Terence J. Keenan Dry-fire training pistol

Also Published As

Publication number Publication date
JPS527680B2 (fr) 1977-03-03
DE2230619B2 (de) 1976-09-02
BE785799A (fr) 1973-01-03
DE2230619A1 (de) 1973-01-25
IT960638B (it) 1973-11-30
JPS4857500A (fr) 1973-08-11

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