US2762267A - Safety device for automatic weapons - Google Patents

Safety device for automatic weapons Download PDF

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Publication number
US2762267A
US2762267A US270676A US27067652A US2762267A US 2762267 A US2762267 A US 2762267A US 270676 A US270676 A US 270676A US 27067652 A US27067652 A US 27067652A US 2762267 A US2762267 A US 2762267A
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US
United States
Prior art keywords
safety
pivotal
striker
automatic
armature
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
US270676A
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English (en)
Inventor
Persson Janne Olof
Palmqvist Knut Roland
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.)
Saab Bofors AB
Original Assignee
Bofors AB
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 Bofors AB filed Critical Bofors AB
Application granted granted Critical
Publication of US2762267A publication Critical patent/US2762267A/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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
    • F41A5/08—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated having an accelerator lever acting on the breech-block or bolt during the 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
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/64—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers

Definitions

  • the principal object of the present invention is to provide safety means preventing accidental discharges of the guns due to jolts.
  • Another object of the invention is to provide safety means which block a pivotal movement of the aforesaid control member which would accidentally actuate the firing mechanism of the gun.
  • Another more specific object of the invention is to provide safety means blocking the pivotal control member in a position in which the components of the firing mechanism associated therewith prevent the striker of the bolt device from connecting with a round of ammunition that may be rammed in when the striker bolt is in its run-out position.
  • Another object of the invention is to provide convenient and reliable means for rendering the safety means operative for the purpose aforesaid and for releasing the control member for its pivotal movement in response to a recoil of the gun barrel.
  • Fig. l is a fragmentary sectional-view of a gun the fir nited States Patent ing mechanism of which is equipped with safety means according to the invention, the pivotal control member being released, and
  • Fig. 2 is a sectional view similar to Fig. 1, the pivotal control member being retained by the safety means in its safety position.
  • the barrel of the gun is designated by 1 and a bolt device 19 is disposed juxtaposed to the barrel in alignment herewith.
  • the bolt device comprises a striker 35 formed with a striker point 15 and a striker plate 37.
  • the striker plate is actuated in a manner not described here in detail and not essential for the understanding of the invention by means of a pivotal control member 8 shown in form of a forked bell crank the arms 8' of which are operatively coupled with the striker plate.
  • Control member 8 is pivotal about a pivot 9 and its short arm coacts with an impact head 53 when the barrel recoils thereby eifecting a pivotal or rocking movement of control member 8 which actuates the firing mechanism.
  • the safety means comprise .a tubular member 61 which is mounted axially-slidable in a corresponding bore or recess provided in the body of impact head 53 or an extension thereof.
  • This tubular member may have any desired cross-section and is shown as a hollow cylinder closed on one end by an end wall 62.
  • the outside wall of tube member 61 forms a cam or abutment surface which in the member position of Fig. 1 is concealed within the bore and in the member position of Fig. 2 is in engagement with the short arm of control member 3 thereby retaining the same in a predetermined safety position.
  • a loaded spring 63 abutting with one end against wall 62 and with the other end against the bottom 64 of the bore in the impact head 53 biases tube member 61 toward the position of Fig. 2 which, as mentioned, is the safety position as is clearly shown on the figure.
  • an electromagnetic control device For the purpose of retaining tube member 61 in the release position of Fig. 1 until it is desired to set the firing mechanism on safety, an electromagnetic control device is provided.
  • This device comprises a magnet body 65 disposed below the recoil jacket 4 of the gun, an exciting coil 67, a stationary core 66 and an axially movable armature 68.
  • the coil can be connected with a suitable source of current 'by means of a plug 77.
  • a two-arm lever 71 is pivotally supported by means of a pivot 74 on magnet body 65. One end of lever 71 is pivoted to armature 68 by a pivot 72 and the other arm is pivoted by a pivot 75 to a bar 76.
  • This bar is slidable transversely to the axis of the gun in a guiding slot formed between magnet body 65 and recoil jacket 4.
  • the free end of bar 76 which is preferably enlarged in a hammerlike fashion, abuts against the outer face of end Wall 62 when the bar is in the position of Fig. 1, thereby retaining tube member 61 in its release position.
  • a loaded spring fitted in a recess 69 formed between the adjacent faces of core 66 and armature 68 biases the armature into the position of Fig. 1 in which the armature is spaced from the core and bar 76 is in its lower or retaining position.
  • a shoulder 65 formed at the rim of magnet body 65 serves to limit the outward movement of tube member 61 by the action of spring 63, as can best be seen on Fig. 2.
  • tube member 61 is retained in its retracted position by bar 76, abutment surface 60 is disengaged from the short arm of control 3 member 8 and the striker plate 37 is in its forward position so that the striker point can connect with a round of ammunition that may be rammed. If it now be desired to set the firing mechanism on safety, an energizing circuit for coil 67 is closed. As a result, armature .68 is attracted against the action of spring 70 thereby lifting bar 76 out of engagement with the end Wall 62. Tube member 61 is now moved by the action of spring 63 into the position of Fig. 2.
  • the energizing circuit of the electromagnet can then be interrupted since bar 76 cannot return into its lower position by reason of the lower end of bar 76 resting against the outer wall of tube member 61.
  • the striker plate 37 and with it the striker point 15 are now held at such a distance from the firing position that the striker point cannot connect with a round of ammunition that may be rammed.
  • An automatic recoilin g firearm having a firing mechanism including a striker and a recoiling system comprising a member pivotal by the recoiling movement of the recoiling system for actuating the striker to move into the position for striking a projectile rammed into the firearm, in
  • the safety member is in form of a tubular member axially slidable between the said safety position and the said release position, and wherein a spring is disposed within the tubular member abutting with one end against the said member and with the other end against a portion of the firearm stationary relative to the tubular member for biasing the latter toward its safety position.
  • control means comprise a movable locking member movable between a position engaging the safety member for axially retaining the latter in its release position against the action of the spring means and a position disengaged from the safety member for releasing the latter for movement into its release position. by the action of the spring means, and actuating means coupled with the locking member for moving the same from its engaged position into its disengaged position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Hinges (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Toys (AREA)
US270676A 1951-03-05 1952-02-08 Safety device for automatic weapons Expired - Lifetime US2762267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE188851 1951-03-05

Publications (1)

Publication Number Publication Date
US2762267A true US2762267A (en) 1956-09-11

Family

ID=38465681

Family Applications (1)

Application Number Title Priority Date Filing Date
US270676A Expired - Lifetime US2762267A (en) 1951-03-05 1952-02-08 Safety device for automatic weapons

Country Status (8)

Country Link
US (1) US2762267A (es)
BE (1) BE509666A (es)
CH (1) CH300055A (es)
DE (1) DE915909C (es)
ES (1) ES202349A1 (es)
FR (1) FR1052010A (es)
GB (1) GB697076A (es)
NL (1) NL86427C (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383985A (en) * 1967-07-31 1968-05-21 Army Usa Positive interlocking safety switch
US4730537A (en) * 1985-11-22 1988-03-15 Mauser-Werke Oberndorf Gmbh Firing pin safety lock for an automatic firearm
US5062232A (en) * 1990-02-23 1991-11-05 Eppler Larry D Safety device for firearms
US5065662A (en) * 1990-12-24 1991-11-19 General Electric Company Firing mechanism for revolving battery gun

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175464A (en) * 1962-09-18 1965-03-30 John G Rocha Safety brake mechanism for externally powered automatic gun
CH556524A (de) * 1972-07-28 1974-11-29 Oerlikon Buehrle Ag Fangvorrichtung an einer selbsttaetigen feuerwaffe.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE326015C (de) * 1917-04-15 1920-09-22 Siemens & Halske Akt Ges Abzugvorrichtung fuer Maschinengewehre
GB362866A (en) * 1929-06-01 1931-12-08 F A T Societa Anonima Fabbrica Improvements in devices for firing through the propellors of aircraft with automatic firearms
FR823229A (fr) * 1937-06-17 1938-01-17 Entpr S Aeronautiques Sa D Installation de commande et de contrôle à distance de mitrailleuses ou autres armes automatiques à répétition
FR861160A (fr) * 1939-05-20 1941-02-03 Perfectionnements apportés aux mécanismes de commande à distance des armes automatiques
US2331942A (en) * 1940-12-05 1943-10-19 Norman K Turnbull Firing mechanism
US2600007A (en) * 1945-04-21 1952-06-10 Oerlikon Buehrle Ag One-piece breech block for automatic firearms with pivoted locking members
US2609731A (en) * 1945-03-29 1952-09-09 Bofors Ab Pivoted breech block locking mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE326015C (de) * 1917-04-15 1920-09-22 Siemens & Halske Akt Ges Abzugvorrichtung fuer Maschinengewehre
GB362866A (en) * 1929-06-01 1931-12-08 F A T Societa Anonima Fabbrica Improvements in devices for firing through the propellors of aircraft with automatic firearms
FR823229A (fr) * 1937-06-17 1938-01-17 Entpr S Aeronautiques Sa D Installation de commande et de contrôle à distance de mitrailleuses ou autres armes automatiques à répétition
FR861160A (fr) * 1939-05-20 1941-02-03 Perfectionnements apportés aux mécanismes de commande à distance des armes automatiques
US2331942A (en) * 1940-12-05 1943-10-19 Norman K Turnbull Firing mechanism
US2609731A (en) * 1945-03-29 1952-09-09 Bofors Ab Pivoted breech block locking mechanism
US2600007A (en) * 1945-04-21 1952-06-10 Oerlikon Buehrle Ag One-piece breech block for automatic firearms with pivoted locking members

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383985A (en) * 1967-07-31 1968-05-21 Army Usa Positive interlocking safety switch
US4730537A (en) * 1985-11-22 1988-03-15 Mauser-Werke Oberndorf Gmbh Firing pin safety lock for an automatic firearm
US5062232A (en) * 1990-02-23 1991-11-05 Eppler Larry D Safety device for firearms
US5065662A (en) * 1990-12-24 1991-11-19 General Electric Company Firing mechanism for revolving battery gun

Also Published As

Publication number Publication date
GB697076A (en) 1953-09-16
DE915909C (de) 1954-07-29
CH300055A (de) 1954-07-15
ES202349A1 (es) 1952-07-01
FR1052010A (fr) 1954-01-20
NL86427C (es) 1900-01-01
BE509666A (es) 1900-01-01

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