US3813803A - Locking means for bolt type firearms - Google Patents

Locking means for bolt type firearms Download PDF

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Publication number
US3813803A
US3813803A US00347617A US34761773A US3813803A US 3813803 A US3813803 A US 3813803A US 00347617 A US00347617 A US 00347617A US 34761773 A US34761773 A US 34761773A US 3813803 A US3813803 A US 3813803A
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US
United States
Prior art keywords
breech
catch
recess
breech member
cam track
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
US00347617A
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English (en)
Inventor
J Eder
K Meierhofer
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.)
Erma Werke Waffen & Maschf
Erma Werke Waffen U Maschinenfab dt GmbH
Original Assignee
Erma Werke Waffen & Maschf
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 Erma Werke Waffen & Maschf filed Critical Erma Werke Waffen & Maschf
Application granted granted Critical
Publication of US3813803A publication Critical patent/US3813803A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C7/00—Shoulder-fired smallarms, e.g. rifles, carbines, shotguns
    • F41C7/06—Lever-action guns, i.e. guns having a rocking lever for loading or cocking
    • 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
    • F41A3/42—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes hand-operated

Definitions

  • ABSTRACT The operation of a repeater hand firearm which has a pivotable element or lever for moving the breech v 3 Claims, 2 Drawing Figures 1 LOCKING MEANS FOR BOLT TYPE FIREARMS
  • a breech member is moved repeatedly to and from a cartridge chamber by hand in various ways from the hand lever (lever action), or by means of the movable fore-end stock (pump action).
  • the hand lever lever action
  • the movable fore-end stock plunge action
  • In order to hold thebreech member in its closed position against the cartridge chamber use is usually made of a detent catch which engages in an associated groove in the breech member and is brought out of the groove to release this member. It is also known to operate this catch by the hand lever.
  • the object of the present invention is'to so construct a firearm of the kind set forth which requires a smaller number of constructional parts than similar existing types, which is of lighter operation needing less expenditure of force thereon, and which has a recoil-free operation.
  • the invention is concerned with a hand firearm of the kind comprising a stock, a barrel mounted on said stock, a cartridge chamber associated with said barrel, a breech member movable on said stock relatively to said cartridge chamber to open and close the breech of the firearm, a control element mounted on said stock and manually operable to movesaid breech member to and from the cartridge chamber, and a detent catch to releasably hold the breech member in the breech-closed condition.
  • the detent catch has a follower element which co-operates with a cam track on said control element for operation of this catch.
  • the cam track on the control element is in two sections, namely a first arcuate section corresponding to disengagement of said detent catch from a recess in the breech member and a second and bevel section corresponding to engagement of the detent catch in said recess.
  • control lever is pivotally mounted on a pin disposed beneath the breech member, in which the first section of the cam track is concentric with said pin, and in which the second section of the cam track is rectilinear and inclined to the segmental line of the first section of the track.
  • the operating lever is not pivotable but displaceable on a slide-way of the firearm and for the cam track to have a corresponding form.
  • the detent catch-receiving recess in the breech member is shaped to provide a short forward edge and a longer edge at an angle to the first and defining the base of the recess, and the detent catch is provided with a nose having a leading edge which bears flush with the forward edgeof said recess when the breech member is held by the detent catch in its closed condition, and having a trailing edge which remains clear of the base edge of said recess when the breech member is held by said catch.
  • the said follower is a pin, and spring means is provided to urge the detent catch towards the breech member V and the follower pin against the cam track in said control element.
  • control element is provided with an actuating projection (eg a finger) which engages with play in an accommodating recess in said breech member.
  • actuating projection eg a finger
  • the advantage of the invention resides in the first place in the fact that there is a secure and non-slipv operation of the breech member by virtue of the nonpositive operation of the detent catch by means of the operating element, this conferring a longer effective life to the parts. Furthermore the arrangement can be constructed so that the parts are readily accessible and in addition the detent catchholds the operating element firmly against the cartridge chamber when the breech is closed, without the after-firing recoil being transmitted through the control element to those parts which are hand operated; this closed position of the operating element is guaranteed bythe detent catch additionally to the latching function of the latter.
  • FIG. 1 shows the arrangement with the breech member closed.
  • FIG. 2 shows the arrangement of FIG. 1 but with the member open.
  • FIGS. 1 and 2 The arrangement illustrated in FIGS. 1 and 2 comprises a rocking element 2 which is pivotally mounted in the breech housing 22 of the firearm by a pin 3 and is integrally connected to the operating lever l.
  • Element 2 takes the form of a segmental plate and has a finger 4 which engages in a lateral recess 5 of the breech block 6 slidable in housing 22.
  • Rocking element 2 is also formed with a cam track 7 which comprises a first arcuate section 8 concentric with the pivot 3, and a second section 9 of bevel form which is angled in relation to the first section 8.
  • Catch 10 will be held by this first cam track section 8 out of engagement in recess 13 of block 6 until the opened condition of the breech, illustrated in FIG. 2, is achieved.
  • the lever l is swung back against the butt.
  • the finger 4 of the element 2 then brings the breech block 6 into closed position against the cartridge chamber 14 and the pin 16 of catch 10 moves away from the first section 8" of track 7.
  • the pin 16 runs on the second section 9 of the track 7 it is moved under the action of compression spring upwards towards block 6 until the nose 12 has entered recess 13 in the latter.
  • the arrangement and shape of the second section 9 of the cam track 7 is so chosen that the catch nose 12 only bears against the leading edge 20 of recess 13 of chamber 6 without reaching the bottom 21 of this recess 13 (FIG. 1).
  • a hand firearm in which the detent catch-receiving recess in the breech member is shaped to provide a short forward edge and a longer edge at an angle to the first and defining the base of the recess, and the detent catch is provided with a nose having a leading edge which bears flush with the forward edge of said recess when the breech member is held by the detent catch in its closed condition. and having a trailing edge which remains clear of the base edge of said recess when the breech member is held by said catch.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Mechanical Control Devices (AREA)
US00347617A 1972-04-14 1973-04-04 Locking means for bolt type firearms Expired - Lifetime US3813803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2218257A DE2218257C3 (de) 1972-04-14 1972-04-14 Einrichtung zur Steuerung der Repetierbewegungen der Kammer von Repetier-Handfeuerwaffen

Publications (1)

Publication Number Publication Date
US3813803A true US3813803A (en) 1974-06-04

Family

ID=5842036

Family Applications (1)

Application Number Title Priority Date Filing Date
US00347617A Expired - Lifetime US3813803A (en) 1972-04-14 1973-04-04 Locking means for bolt type firearms

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US (1) US3813803A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2218257C3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997025580A1 (en) * 1996-01-04 1997-07-17 Sturm, Ruger & Company, Inc. Hammer cocking and bolt locking system for lever operating firearm
US5821445A (en) * 1996-04-09 1998-10-13 Heckler & Koch Gmbh Loading lever assembly for hand-operated firearms
US20040020095A1 (en) * 2002-03-26 2004-02-05 Beretta Ugo Gussalli Sear mechanism for firearms
US20040200112A1 (en) * 2002-04-22 2004-10-14 Beretta Ugo Gussalli Safety device for a breechblock of a firearm
RU2329449C1 (ru) * 2006-10-06 2008-07-20 Федеральное государственное унитарное предприятие "Ижевский механический завод" Узел запирания многозарядного огнестрельного оружия
USD969257S1 (en) * 2020-02-19 2022-11-08 Moab Ventures, LLC Air gun

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148619A (en) * 1991-11-26 1992-09-22 Browning Lever action for firearms
AT2384U1 (de) * 1997-08-06 1998-09-25 Sommer & Ockenfuss Gmbh Repetiervorrichtung für gewehre mit geradezugverschluss

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US454993A (en) * 1891-06-30 Recoil-operated magazine-gun
US636196A (en) * 1896-02-25 1899-10-31 Winchester Repeating Arms Co Automatic gun.
FR506730A (fr) * 1919-11-20 1920-08-28 Eugene Goursaraud Système de fermeture et d'armement s'appliquant aux armes à feu portatives
US2118536A (en) * 1935-05-27 1938-05-24 J M & M S Browning Company Firearm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US454993A (en) * 1891-06-30 Recoil-operated magazine-gun
US636196A (en) * 1896-02-25 1899-10-31 Winchester Repeating Arms Co Automatic gun.
FR506730A (fr) * 1919-11-20 1920-08-28 Eugene Goursaraud Système de fermeture et d'armement s'appliquant aux armes à feu portatives
US2118536A (en) * 1935-05-27 1938-05-24 J M & M S Browning Company Firearm

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997025580A1 (en) * 1996-01-04 1997-07-17 Sturm, Ruger & Company, Inc. Hammer cocking and bolt locking system for lever operating firearm
US5821445A (en) * 1996-04-09 1998-10-13 Heckler & Koch Gmbh Loading lever assembly for hand-operated firearms
US20040020095A1 (en) * 2002-03-26 2004-02-05 Beretta Ugo Gussalli Sear mechanism for firearms
US6769208B2 (en) * 2002-03-26 2004-08-03 Fabbrica D'armi Pietro Beretta S.P.A. Sear mechanism for firearms
US20040200112A1 (en) * 2002-04-22 2004-10-14 Beretta Ugo Gussalli Safety device for a breechblock of a firearm
US6836989B2 (en) * 2002-04-22 2005-01-04 Fabbrica D'armi Pietro Beretta S.P.A. Safety device for a breechblock of a firearm
RU2329449C1 (ru) * 2006-10-06 2008-07-20 Федеральное государственное унитарное предприятие "Ижевский механический завод" Узел запирания многозарядного огнестрельного оружия
USD969257S1 (en) * 2020-02-19 2022-11-08 Moab Ventures, LLC Air gun

Also Published As

Publication number Publication date
DE2218257A1 (de) 1973-10-18
DE2218257C3 (de) 1975-01-09
DE2218257B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-05-16

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