US3863542A - Assemblies comprising an automatic firearm with a return spring mounted on a support - Google Patents

Assemblies comprising an automatic firearm with a return spring mounted on a support Download PDF

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Publication number
US3863542A
US3863542A US399871A US39987173A US3863542A US 3863542 A US3863542 A US 3863542A US 399871 A US399871 A US 399871A US 39987173 A US39987173 A US 39987173A US 3863542 A US3863542 A US 3863542A
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US
United States
Prior art keywords
weapon
support
plug
bearing plug
bearing
Prior art date
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Expired - Lifetime
Application number
US399871A
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English (en)
Inventor
Bernard Pierre
Rene Volle
Raymond Koerper
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Gouvernement de la Republique Francaise
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Gouvernement de la Republique Francaise
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/68—Bolt stops, i.e. means for limiting bolt opening movement
    • 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
    • F41A11/00—Assembly or disassembly features; Modular concepts; Articulated or collapsible 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
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/005—Locks for connecting guns to their mountings

Definitions

  • references Cited UNITED STATES PATENTS 2,809,564 lO/l957 is ltl i Primary Examiner-Stephen C. Bentley Attorney, Agent, or Firm-Larson, Taylor & Hinds
  • ABSTRACT The firearm is fixed on its support by springs passing through aligned orifices formed in elements rigidly fixed respectively to the firearm, to a brake borne by the support and stops serving as a support for the re turn springs.
  • the invention is useful for small and medium calibre firearms, particularly for preventing firing until the weapon is correctly secured on its sup port.
  • the invention relates to assemblies formed by an automatic weapon mounted on a support and comprising at least one return spring adapted to return the mobile breech-block of the weapon to the closure position.
  • the word support is used hereinafter in a very general sense and may mean a cradle, a hood, a gun mounting, a turret, a racer for a firing platform, etc.
  • the invention applies to cases in which the automatic weapon is fixedly mounted on a support and also to the much commer case in which the automatic weapon is slidably mounted in relation to its support, with the interposition of a shock-absorbing apparatus.
  • the invention applies more particularly, but not exclusively, to the case in which the automatic weapon is of small or medium calibre i.e., a calibre of between and 50 mm and, in the majority of cases, a calibre of between and 35 mm, this being inter alia the case with automatic weapons having a calibre of mm.
  • the invention relates more particularly, but not exclusively, to weapons having two return springs disposed symmetrically on either side of the longitudinal plane of symmetry of the weapon.
  • the automatic weapon associated with the assembly according to the invention is an automatic weapon of the open breech type i.e., a weapon in which, when the firer stops firing, the breech remains attached to a sear in a rear position from which it is re turned forward, when firing is resumed, by the action of the or each return spring.
  • the assembly according to the invention comprises a support and an automatic weapon with an open breech adapted to be mounted on such support and comprising a mobile breech-block subjected to the force of at least one return spring bearing via its rear end against a plug slidably mounted in the rear portion of the weapon breech box, characterized in that the bearing plug is fixed in relation to the weapon breech box and the weapon is fixed on its support by associating with each bearing plug of the return spring a detachable fixing member which, when the bearing plug of the return spring occupies its normal firing position and the weapon occupies its normal position on its support, is adapted to move through aligned apertures with which three separate attaching elements provided to this end are formed i.e., a first element connected to the bearing plug, a second element connected to the weapon, and a third element connected to that member of the support to which the weapon is to be fixed.
  • the bearing plug of the return spring will be connected to the weapon breech box and the weapon will be correctly mounted on its support, so that firing can then be started without risk to the user, whose adjustment of the stop system will enable the return spring, suitably borne at its rear end, to return the breech into the clo sure position.
  • the bearing plug of the return spring has to be disposed towards the rear of the weapon, advantageously, to avoid having to make its attaching element too large longitudinally, the two other attaching elements i.e., the element connected to the weapon and the element connected to the supporting weapon on which the weapon is to be secured are also disposed at the level of the rear of the weapon.
  • the weapon When, as is generally the case, the weapon is mounted on its support with the interposition of a shock absorbing apparatus comprising a rearwardly extending mobile fitting, the attaching element associated with the weapon support can advantageously be pro vided towards the rear end of such mobile fitting.
  • the attached element associated with the bearing plug is disposed in the most distant position on the side by which the fixing member is engaged i. e., below the two other attaching elements when such member is vertically engaged from top to bottom, thus further increasing the securing of the weapon.
  • the attaching element associated with the weapon is formed by a simple perforate lateral foot extending transversely ofthe weapon axis, the attaching element associated with the supporting member on which securing is to be carried out, takes the form of a longitudinal clevis with perforate fins adapted to fit over said perforate foot which is thus engaged between such fins, and the attaching element associated with the plug takes the form of a perforate fin connected to the plug and occupying a position be neath the lower fin of
  • the angular wedging means are provided for wedging the bearing plug in relation to the weapon breech box, so that the alternating angular stressings to which the bearing plug is subjected during firing are not transmitted to the weapon securing device as a whole during firing.
  • said angular wedging means are formed by a protuberance disposed on the periphery of the bearing plug and a recess ofcorresponding shape with which the periphery of the recess provided for the bearing plug is performed, the protuberance engaging in the recess when the bearing plug occupies its operative position.
  • a fixing member which is to extend through and con nect the various attaching elements can advantageously take the form of a simple spindle having a head at one end and axial retaining means at its other end.
  • the axial retaining means are resilient locking means incorporated in the spindle, so as to facilitate things for the user of the gun and avoid the risk of losing some independent axial retaining member (nut, pin, etc.) in often precarious and difficult conditions (battle situation, night exercises, etc.) in which it may be necessary and urgent to secure or remove the weapon.
  • the system for secur ing the weapon to its support and locking the two bearing plugs of the two return springs is formed by two symmetrical portions, each constructed as set forth hereinbefore with respect to a single bearing plug, such two portions, associated with the two bearing plugs respectively, being identical and disposed symmetrically in relation oftbe aforementioned longitudinal plane of symmetry.
  • the two fixing members (inter alia the two spindles) associated with the two bearing plugs respectively can be borne on a common base, such as, for instance, a fork.
  • the final result is an assembly of automatic weapon and support in which the operations of locking the or each bearing plug of the return spring and of securing the weapon on its support can be performed in conditions of increased safety for the user of the weapon when he starts firing.
  • FIG! is a diagrammatic perspective view, with portions removed, of the rear portion of an assembly according to the invention formed by an automatic weapon and its support, the weapon being shown to simplify the drawings offset rearwardly in relation to its support, the elements for attaching its securing system being shown moved away from one another;
  • FIG. 2 is a side elevation, in slightly greater detail, of
  • FIG. 3 is a perspective view of a variant embodiment of the two members for fixing the system for securing the weapon on its support.
  • the assembly as shown diagrammatically in FIG. I and in a more detailed manner in FIG. 2 mainly comprises an automatic weapon with an open breech comprising, amongst other elements, a breech box I receiving a mobile breech (not shown) and two lateral return springs 2 (only one of which is shown in FIG.
  • the return springs each bearing rearwardly against an individual bearing plug 3 with a cylindrical skirt slidably engaged in a bore in a rear portion of the breech box 1 and angularly wedged by the penetration of a peripheral boss 3a into a recess ofcorresponding shape with which the guide wall of the skirt of the corresponding bearing plug is formed, the assembly also comprising a support, such as a cradle 4,
  • a shock absorbing apparatus formed by two identical lateral elements disposed on either side of the weapon and each comprising a brake 5 (for instance, mechanical or hydraulic), whose mobile fitting has a sliding rod 50 extending rearwardly and acting as a member for attaching the weapon to its support.
  • the resulting system for securing the weapon on a support of the kind specified comprises two identical portions disposed symmetrically on either side of the common longitudinal plane of symmetry ofthe weapon and its support, each of such portions comprising a transverse lateral foot 6 attached to the rear ofa breech box 1 and formed with a cylindrical aperture 60 of ver' tical axis; a longitudinal clevis 7 extending rearwardly and attached to the rear of the rod 50 of the shockabsorbing apparatus 5, the fins of the clevis 7 each being formed with an aparture 7a identical with the ap erture 6a, the clevis being adapted to fit over the lateral foot 6, having its aperture 711 aligned with the aperture 60 in such lateral foot (the position illustrated in FIG.
  • a fin 8 connected to the bearing plug 3 and bent forwardly and formed with an aperture 80 identical with the aperture 60, 7a and adapted to be aligned with such apertures 60, 70 at the securing level when the weapon is correctly disposed on its support and the bearing plugs of the return springs occupy their firing position, the bent portion of the fin 8 then taking its place beneath the lower fin of the clevis 7 as clearly shown in FIG. 2; and a fixing spindle 9 with a head 9a adapted to be engaged, by a vertical downward movement, through the apertures 6a-8a, previously aligned, of the attaching elements 6-8, the spindle having at its lower end axial retaining members such as, for instance, locking balls 9b with a spring.
  • a weapon of the kind specified can be secured on its support therefore in the following manner:
  • the operator must therefore disengage the spindles 9 (unlocking the plugs 3 and making the weapon tem porarily incapable of shooting) and then engages the lateral feet 6 between the corresponding fins of the clevis 7, making sure that the apertures 6a-8a are correctly aligned.
  • the two fixing spin dles 9 can be borne by the arms of a common fork 10 having a handle 100, the fork 10 (including the spindles 9) in that case forming the only detachable member of the securing system.
  • An assembly comprising a support and an automatic weapon of open breech-block type, adapted to be mounted on said support, said weapon comprising a mobile breech-block subjected to the force of at least one return spring bearing via its rear end against a plug slidably mounted in the rear portion of the weapon breech box, characterized in that the bearing plug is fixed in relation to the weapon breech box and the weapon is fixed on its support by associating with each bearing plug of the return spring a detachable fixing member which, when the bearing plug of the return spring occupies its normal firing position and the weapon occupies its normal position on its support, is adapted to move through aligned apertures with which three separate attaching elements provided to this end are formed i.e., a first element connected to the bearing plug, a second element connected to the weapon, and a third element connected to that member of the support to which the weapon is to be fixed, and further comprising a shock-absorbing apparatus with a mobile fitting interposed between the weapon and its support, characterized in that the attach
  • an assembly as set forth in claim 4. characterized in that the attaching element associated with the weapon is formed by a simple perforate lateral foot L. t tending transversly of the weapon axis, the attaching element associated with the supporting member on which securing is to be carried out, takes the form of a longitudinal clevis with perforate fins adapted to fit over said perforate foot which is thus engaged between such fins, and the attaching element associated with the plug takes the form of a perforate fin connected to the plug and occupying a position beneath the lower fin of said clevis (the fixing member being supposed to be vertical and engage from top to bottom).
  • An assembly comprising a support and an auto matic weapon of open breech-block type, adapted to be mounted on said support, said weapon comprising a mobile breech-block subjected to the force of at least one return spring bearing via its rear end against a plug slidably mounted in the rear portion of the weapon breech box, characterized in that the bearing plug is fixed in relation to the weapon breech box and the weapon is fixed on its support by associating with each bearing plug of the return spring a detachable fixing member which, when the bearing plug of the return spring occupies its normal firing position and the weapon occupies its normal position on its support, is adapted to move through aligned apertures with which three separate attaching elements provided to this end are formed i.e., a first element connected to the bearing plug, a second element connected to the weapon, and a third element connected to that member of the support to which the weapon is to be fixed, and wherein the attached element associated with the bearing plug is disposed in the most distant position on the side by which the fixing member is engaged
  • the attaching clement associated with the weapon being formed by a simple perforate lateral foot extending transversely of the weapon axis
  • the attaching clement associated with the supporting member on which securing is to be car ried out takes the form of a longitudinal clevis with the perforate fins adapted to fit over said perforate foot which is thus engaged between such fins
  • the attaching clement associated with the plug takes the form of a perforate fin connected to the plug and occupying a position beneath the lower fin of said clevis (the fixing member being supposed to be vertical and engage from top to bottom).
  • An assembly comprising a support and an automatic weapon of open breech-block type, adapted to be mounted on said support, said weapon comprising a mobile breech-block subjected to the force of at least one return spring bearing via its rear end against a plug slidably mounted in the rear portion of the weapon breech box.
  • the bearing plug is fixed in relation to the weapon breech box and the weapon is fixed on its support by associating with each bearing plug of the return spring a detachable fixing member which, when the bearing plug of the return spring occupies its normal firing position and the weapon occupies its normal position on its support, is adapted to move through aligned apertures with which three separate attaching elements provided to this end are formed i.e., a first element connected to the bearing plug, a second element connected to the weapon, and a third element connected to that member of the support to which the weapon is to be fixed, and wherein angular wedging means are provided for wedging the bearing plug in relation to the weapon breech box, so that the alternating angular stressings to which the bearing plug is subjected during firing are not transmitted to the weapon securing device as a whole during firing.
  • said angular wedging means are formed by a protuberance disposed on the periphery of the hearing plug and a recess of corresponding shape with which the periphery ofthe recess provided for the bearing plug is performed, the protuberance engaging in the recess when the bearing plug occupies its operative position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Toys (AREA)
US399871A 1972-09-26 1973-09-24 Assemblies comprising an automatic firearm with a return spring mounted on a support Expired - Lifetime US3863542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7233961A FR2200956A5 (cs) 1972-09-26 1972-09-26

Publications (1)

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US3863542A true US3863542A (en) 1975-02-04

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US399871A Expired - Lifetime US3863542A (en) 1972-09-26 1973-09-24 Assemblies comprising an automatic firearm with a return spring mounted on a support

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US (1) US3863542A (cs)
AU (1) AU6070273A (cs)
CH (1) CH579254A5 (cs)
DE (1) DE2347663C3 (cs)
FR (1) FR2200956A5 (cs)
GB (1) GB1434564A (cs)
IL (1) IL43305A (cs)
IT (1) IT994762B (cs)
ZA (1) ZA737517B (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591934A (en) * 1994-04-28 1997-01-07 Giat Industries Blocking part insertable in a breech ring for preventing translation of a rod within the breech ring
US8978538B1 (en) * 2012-08-28 2015-03-17 Chris Schaller Secondary weapon mount

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255550A1 (de) * 1986-08-06 1988-02-10 Chrobak, Peter Maschinenwaffe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809564A (en) * 1950-06-24 1957-10-15 Arthur J Pope Gun construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809564A (en) * 1950-06-24 1957-10-15 Arthur J Pope Gun construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591934A (en) * 1994-04-28 1997-01-07 Giat Industries Blocking part insertable in a breech ring for preventing translation of a rod within the breech ring
US8978538B1 (en) * 2012-08-28 2015-03-17 Chris Schaller Secondary weapon mount

Also Published As

Publication number Publication date
IL43305A0 (en) 1974-03-14
FR2200956A5 (cs) 1974-04-19
AU6070273A (en) 1975-03-27
IT994762B (it) 1975-10-20
DE2347663C3 (de) 1978-04-20
GB1434564A (en) 1976-05-05
CH579254A5 (cs) 1976-08-31
IL43305A (en) 1978-03-10
DE2347663A1 (de) 1974-04-11
ZA737517B (en) 1974-10-30
DE2347663B2 (de) 1977-08-25

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