US1596177A - Trigger mechanism for automatic small firearms - Google Patents

Trigger mechanism for automatic small firearms Download PDF

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Publication number
US1596177A
US1596177A US735545A US73554524A US1596177A US 1596177 A US1596177 A US 1596177A US 735545 A US735545 A US 735545A US 73554524 A US73554524 A US 73554524A US 1596177 A US1596177 A US 1596177A
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US
United States
Prior art keywords
lever
trigger
recoil
sear
motion
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
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US735545A
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English (en)
Inventor
Haubroe Werner Christia Lassen
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Individual
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Individual
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Publication date
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Publication of US1596177A publication Critical patent/US1596177A/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
    • 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
    • F41A17/56—Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear
    • 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
    • F41A17/46—Trigger safeties, i.e. means for preventing trigger 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns

Definitions

  • present invention is arranged in such a manner That a cartridge inserted all the way into the chamber will always be fired when the barrel and the breech block have been moved forward into their foremost position That the barrel and the breech block will always remain in the withdrawn position, when the trigger is released,
  • This position is selected in such a manner that the breech may be closed over the cartridge which is introduced into the chamber after the error of operation has been remedied. Before firing is resumed, the car-.
  • tridge is ejected from the chamber by a loading manipulation, and the safety device is then turned into free position, whereafter the-gun is once more ready to be fired.
  • the invention is illustrated on the draw- Figs. 1 and 2 showing sections along the lines 'II and 11-11, respectively, in Fig. 3, a
  • Fig. 4 a sectlon along the line IVIV of Fig. 3,
  • Fig. 10 the trigger mechanism in side elevation with the parts in another position than the one shown in Fig. 7 and Figs. 11 and 12 some details in perspective view. I a
  • the trig er is pivoted about a bolt 9 journalled in t e trigger plate 8, and is shaped as a two-armed lever, one arm 7 of which forms the trigger proper, while its other forwardly directed arm 10 is actuated by a helical spring 11, and has a fixed stopping hook 12.
  • On the bolt 9 is further hung the sear 13, which is a single-armed lever rovided alongside the trigger and actuate by a helical spring 14.
  • the scar has a fixed stopping hook 15 and, on the side facing the trigger arm 10, a projection 16, Figs. 8, 9 and 11, which fits into a notch 17, Figs. 8 and 12 in the upper face of the trigger arm 10.
  • the trigger arm 10 is fitted, at its front end, with a beak 24 and the sear similarly with a beak 25. The latter is, as it appears from Figs. 7 and 9, slightly longer than the beak 24.
  • a lug 18 above the trigger arm 10 and also above the projection 16 on the side of the sear.
  • the hub of the recoil lever is further fitted with a stop 19 adapted to cooperate with the stopping hook 12 of the trigger arm 10, and the hub of the percussion lever is fitted with a stop 23 adapted to co-operate with the stopping hook 15 of the sear 13.
  • 20 is a tappet provided in the lock frame and adapted to limit the forward motion of the percussion lever, and the percussion lever rests against this tappet, when the lock mechanism is to be put to ether after having been taken apart.
  • 21 is the safety bolt with a projecting lug 22.
  • the stopping hook 12 of the trigger When now the grip 7 of the tngger 1s pulled-back, then the stopping hook 12 of the trigger will be withdrawn from the sto 19 on the recoil lever, which is hereby turne forward 'by the recoil sprin 5, and moves the breech block and the arrel forward into their forward position.
  • the projection 18 on the hub of the recoil lever will exert a downward pressure on the projection 16 on the sear 13, whereby the atter is forced downward alongside the forwardly directed arm 10 of the trigger, whereby the stopping hook 15 of the sear is removed from the sto 23 of the ercussion lever, so that the sai lever may be moved forward by the percussion spring 6 for firing the charge.
  • the wearer 1f the trigger gri happens to be released during the forwar motion, then the projection 18 of the recoil lever will depress the sear at the end of the forward motion, and the cartridge which is inserted in the chamher will therefore be fired in normal manner.
  • the trigger lever 10 is released by the rotation of the recoil lever into the position shown in Fig. 1, and the stopping hook 12 of the trigger lever 10 will therefore enter into engagement with'the stop 19 of the recoil lever, when the return motion is finished, whereby the recoil lever is arrested in such a manner that the forward motion will be prevented.
  • the percussion lever is arrested in the above described manner by the stopping hook 15 of the sear. 1f the trigger grip is released during the recoil, then the stopping hook 23 of the trigger arm lfi will arrest the recoil lever, in the same manner asdescribed, above after the recoil is finished.
  • the safety bolt 21 is provided with the lug 22, which when the bolt is rotated will be swung in below the beaks 24 and 25 of the trigger lever and the sear, re-.
  • the safety bolt 21 should first be turned.
  • the projection 22 of this bolt will then slide below the front portion of the beak 25 of the sear 13, until the said projection reaches the front end of the beak 24 of the trigger arm 10.
  • the projection 22 cannot enter below this beak, as the trigger arm 10 is maintained de ressed b the hub of. the recoil lever, see ig. 5.
  • the cause of the failure of the mechanism has been removed and the forward motion stopping hook 12 of the trigger lever 10 en'- gegmg the rear face of the stop 19 of the recoil lever.
  • the projection 22 of the safety bolt is now turned away from the beak 25 of the scar, and firing may then be continued by a pull on the trigger grip 7.
  • the above described trigger mechanism odors not only security against the weapon being loaded when firing stops, but an essential advantage of the mechanism is that it consists of extremely few parts co-operating with each other and with the recoil lever and the ercussion lever in a most simple and relia le manner.
  • the arts may be made very solid, because owing to their small number there will be more room in the lock frame than in case of the heretofore used more complicated mechanisms, so ililflt the mechanism becomes far more dura- Having thus described my invention, what I claim is 1.
  • An automatic firearm comprising, in combination, a reciprocable barrel and breech block, a sprin' -actuated recoil lever for impart-in forwar motion to said barrel and breech b ock, a sprin -actuated percussion lever, means actuated the recoil of the barrel and breech block for setting both.
  • a pivoted trigger for retainin the recoil .lever in set position, a pivots sear for retaining the percussion lever in set position, a trigger grip for manually rocking said trigger on its pivot thereby to release said recoil lever, said trigger having a depression and the sear having a pro'ectmg portion adapted to be seated in said de ression, a" projection carried by the recoil ever and adapted to enga e said projecting'portion thereby to rock t e sear on its pivot and release the percussion lever during the forward motion of the recoil lever, the organization being such that when the trigger grip is held so as to maintain the trigger in its rocked osition the recoil and percussion levers Wlll be automatically reciprocated and if said gri is released during the forward motion sai reciprocating motion will continue until the levers arrive at the limit of their recoil motion, said trigger and sear being actuated during said recoil motion to lock said levers.
  • An automatic firearm comprising, in combination, a reciprocable barrel and breech block, a sprin -actuated recoil lever for impartin forwar motion to said barrel and breech fiock, a sprin -actuatedpercussion lever, means actuated by the recoil of the barrel and breech block for setting both of said levers, a pivoted trigger for retaining the recoil lever in set position a pivoted sear for retaining the rcussion ever in set sition, a trigger grip for manually rocking said trigger on its pivot thereby to release said recoil lever, said trigger having a depression and the sear having a pro'ecting portion adapted to be seated in said epres-' sion, a projection carried by the recoil lever and adapted to engage said projecting portion thereby to rock the scar on its pivot and release the percussion lever during the forward motion of the recoil'lever, the organ ization being such that when the trigger grip is held so as to maintain the trigger in its rocked position
  • An automatic firearm comprising, in combination, a reciprocable barrel and breech block, asprin -actuated recoil lever for imparting forvvar motion to said barrel and breech block, a spring-actuated percussion lever, means actuated by the recoil of the barrel and breech block for setting both of said levers, a pivoted trigger for retaining 'the recoil lever in set position, a pivoted sear for retaining the percussion lever in set position, a trigger grip for manually rocking said trigger on its pivot thereby to release said recoil lever,
  • said trigger having a depression and the sear having a projecting portion adapted to be seated in said depression, a projection carried by the recoil lever and motion snid reciprocating motion contrigger and sear thereby to prevent actuation tmue until the levers arrive at the limit of of the trigger grip, said projections being 1 their recoil motion, said trigger and sear so disposed that said bolt projection may being actuated during said recoil motion to engage the sear projection independently of lock said levers, said trigger and seer each th t i ger projection.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Harvester Elements (AREA)
  • Toys (AREA)
US735545A 1923-09-24 1924-09-03 Trigger mechanism for automatic small firearms Expired - Lifetime US1596177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR430990X 1923-09-24

Publications (1)

Publication Number Publication Date
US1596177A true US1596177A (en) 1926-08-17

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ID=8899325

Family Applications (1)

Application Number Title Priority Date Filing Date
US735545A Expired - Lifetime US1596177A (en) 1923-09-24 1924-09-03 Trigger mechanism for automatic small firearms

Country Status (5)

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US (1) US1596177A (fr)
CH (1) CH112627A (fr)
DE (1) DE430990C (fr)
FR (1) FR571016A (fr)
GB (1) GB222455A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113367113A (zh) * 2021-06-22 2021-09-10 浙江日晟农林科技有限公司 一种背负式吹风喷雾一体机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113367113A (zh) * 2021-06-22 2021-09-10 浙江日晟农林科技有限公司 一种背负式吹风喷雾一体机
CN113367113B (zh) * 2021-06-22 2023-08-22 浙江日晟农林科技有限公司 一种背负式吹风喷雾一体机

Also Published As

Publication number Publication date
DE430990C (de) 1926-07-05
FR571016A (fr) 1924-05-10
GB222455A (en) 1925-04-23
CH112627A (de) 1925-11-16

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