EP0689026B1 - Bremssystem für die Bewegung des Hahns einer Feuerwaffe - Google Patents

Bremssystem für die Bewegung des Hahns einer Feuerwaffe Download PDF

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Publication number
EP0689026B1
EP0689026B1 EP95401099A EP95401099A EP0689026B1 EP 0689026 B1 EP0689026 B1 EP 0689026B1 EP 95401099 A EP95401099 A EP 95401099A EP 95401099 A EP95401099 A EP 95401099A EP 0689026 B1 EP0689026 B1 EP 0689026B1
Authority
EP
European Patent Office
Prior art keywords
movement
spring
hammer
braked
braking
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
EP95401099A
Other languages
English (en)
French (fr)
Other versions
EP0689026A1 (de
Inventor
René Pons
Jean-Pierre Montgrenier
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP0689026A1 publication Critical patent/EP0689026A1/de
Application granted granted Critical
Publication of EP0689026B1 publication Critical patent/EP0689026B1/de
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
    • F41A19/03—Shot-velocity control

Definitions

  • the present invention relates to a method for braking the movement of a part armed by a spring and animated by a reciprocating swivel movement.
  • the field of application of the invention is in particular, but not exclusively, that of the automatic firearms of small caliber, the part to be braked being the hammer of the weapon operating mechanism.
  • a firearm of the above type can operate at one rate of 1200 strokes / min, for example, and the problem posed is to be able to reduce such a rate of fire for notably increase the accuracy of the weapon's shooting.
  • the object of the invention is to provide a solution new to the problem of slowing down an animated play of a reciprocating pivoting movement, such as the hammer of a firearm, and whose implementation is simple and little expensive.
  • the invention provides a method for slow down the movement of a part subjected to the action of a spring and driven by an alternating pivoting movement between a first and a second position, the part being subjected to a first couple resulting from exercise at a first point of application on said part of the force of relaxation exerted by the spring in the banded state, to drive moving the piece from its first to its second position, part returning to its first position under the action of a other driving member, process characterized in that it consists to apply to this part a second couple having a value lower than the first, to slow the movement of the piece, second couple applied to it through a second pivoting part bearing on the part to brake on at least part of the travel stroke of the latter between its first and its second position to oppose the action of the aforementioned first couple, second part whose support on the first part is caused by the spring expansion force applied to it at the level a second point of application on said second part.
  • the invention also relates to a system for setting using this method, system which is characterized in that that it includes a second piece or braking piece mounted swivel around a shaft and connected to the part to be braked at by means of a connecting rod extending perpendicularly to the two articulation shafts of the two parts, the rod link being articulated on the part to be braked and passing through freely opening the braking part, the spring armament being mounted around the rod and resting on the braking part and a boss provided in the middle part of the rod, and in that the two articulation shafts are located at different distances from the axis of the rod connection so that the return force of the arming spring, at the bandaged state when the part to be braked is in its first position, or simultaneously applied to the two parts in giving birth to two opposing pairs to slow down the movement of the part over at least part of the stroke moving to its second position.
  • the method and the system according to the invention can be applied to a firearm small caliber, where the part to be braked is the hammer of the operating mechanism of this weapon.
  • Firearm 1 as shown schematically in Figure 1, is an automatic weapon of small caliber comprising a barrel assembly 2, a stock 4 in which is housed a mechanism 5 of weapon operation control, trigger 7 connected to mechanism 5 and a handle 9 to support weapon 1.
  • the mechanism 5 includes in particular a hammer 10 mounted to pivot around a supported shaft 12 in rotation by the body of the weapon 1.
  • This hammer 10 is animated by an alternating pivoting movement between a cocking position and a percussion position, when the trigger 7 is pressed by the shooter's finger.
  • the hammer 10 is armed by a spring 14 when it is in its position weapon, and it cooperates with a trigger (not shown), controlled by trigger 7 and which maintains hammer 10 in cocking position as long as the trigger is not activated.
  • a braking system 15 makes it possible to slow down the movement of the hammer 10 during its movement towards its percussion position under the action of the force exerted by the arming spring 14, once the trigger is no longer engaged with the hammer 10.
  • This braking system 15 is based on the action exerted on the hammer 10 by two opposite couples or antagonists which are applied simultaneously to the hammer 10 and defined from the force exerted by the spring 14.
  • the braking system comprises a braking part 20 intended to come to rest on the hammer 10 when this the latter is in the arming position.
  • a first couple C1 is applied to hammer 10, while a second pair antagonist C2 (C2 ⁇ C1) is simultaneously applied by the braking piece 20 on the hammer 10.
  • the braking system 15 comprises a connecting rod 22 mounted between the hammer 10 and the workpiece braking 20.
  • This connecting rod 22 supports the spring arming 14 so that the force of this spring 14, simultaneously applied to the hammer 10 and the braking part 20, generates the aforementioned two pairs C1 and C2.
  • the hammer 10 comprises a body 24, one end of which is articulated on the shaft 12 and the other end of which forms a percussion element 26.
  • a bearing surface 28 is formed by a shoulder-shaped recess between the body 24 and the percussion element 26 of the hammer 10.
  • the braking part 20 comprises a body 30, one of which end forms a bearing surface 32 and the other of which end extends, substantially at 90 °, by a tail 34 located in the same plane as the body 30.
  • the braking part 20 is pivotally mounted around a shaft 36 supported by the weapon body 1 and parallel to the pivot shaft 12 of the hammer 10.
  • the hammer 10 and the braking piece 20 are positioned in the same plane parallel to the plane of symmetry of weapon 1 passing through the barrel assembly 2.
  • the connecting rod 22 of the retarder device 15 is mounted articulated, at one end, with the hammer 10 on a shaft 38 parallel to the pivot shafts 12 and 36 of the hammer 10 and brake piece 20, while its other end freely passes through an opening 40 pierced in the tail 34 of the braking piece 20.
  • a collar or boss 42 is provided in the central part of the connecting rod 22, and the arming spring 14 of the hammer 10 is mounted around the rod 22 so that its two ends take respectively support on the boss 42 and on the part braking 20.
  • the force of spring 14 is therefore applied simultaneously on hammer 10 at an application point materialized by the shaft 38 mounted between the hammer 10 and the rod 22, and on the braking part 20 at a point located at tail level 34 of his body 30.
  • These two points are located on the longitudinal axis X-X of the connecting rod 22, and the pivot axes of the hammer 10 and of the braking part 20, materialized by the shafts 12 and 36, are respectively located at distances D1 and D2 (D1> D2) of the X-X axis.
  • the torque resulting applied to the hammer 10 is equal to the difference of the two couples C1 and C2, so that the hammer movement 10 is slowed down on at least one part of its displacement travel to its position of percussion.
  • the bearing surfaces 28 and 32 of the hammer 10 and of the braking part 20 are dimensioned so to stay in contact with each other on at least one part of the travel stroke of the hammer 10. In playing on the dimensioning of these surfaces 28 and 32, as well as on the value of the pairs C1 and C2, we can adjust the hammer deceleration speed 10.
  • the return movement of the hammer of its percussion position to its arming position is obtained for example by the movement of the breech of the mechanism 5 of the weapon.
  • this braking 15 of which an application example has been given in the case of an operating mechanism of a handgun fire, can of course be applied to other areas where it is necessary to slow down the movement swivel in one piece.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Braking Arrangements (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Claims (3)

  1. Verfahren zum Bremsen der Bewegung eines Teils (10) unter Einwirkung der Kraft einer Feder (14), mit einer abwechselnden Schwenkbewegung zwischen einer ersten und einer zweiten Stellung, wobei das Teil einem ersten Moment ausgesetzt ist, das sich aus der Ausübung der Entspannkraft die von der Feder in gespanntem Zustand ausgeübt wird, auf die Ebene eines ersten Anlegepunktes auf besagtem Teil ergibt, um eine Bewegung des Teils von seiner ersten in seine zweite Stellung zu bewirken, wobei das Teil unter der Einwirkung eines anderen Antriebselements in seine erste Stellung zurückkehrt, gekennzeichnet dadurch, daß es darin besteht, auf dieses Teil ein zweites Moment mit einem geringeren Wert als der ersten auszuüben, um die Bewegung des Teils zu bremsen, wobei das zweite Moment über ein zweites Schwenkteil (20) angelegt wird, das auf das zu bremsende Teil während mindestens eines Teils seiner Verschiebung von der ersten in die zweite Stellung aufliegt, um sich der Wirkung des ersten erwähnten Moments entgegenzusetzen, wobei die Auflage des zweiten Teils auf das erste Teil durch die Entspannkraft der Feder (14) hervorgerufen wird, die auf das Teil auf der Ebene eines zweiten Anlegepunkts einwirkt.
  2. System zur Durchführung des Verfahrens gemäß der Erfindung 1, zum Bremsen der Bewegung eines Teils (10), das durch eine Feder (14) scharf gemacht ist und eine abwechselnde Schwenkbewegung um eine Welle (12) zwischen einer ersten und einer zweiten Stellung durchführt, gekennzeichnet dadurch, daß es ein zweites Teil (20) oder Bremsteil schwenkend um eine Welle (36) besitzt, das mit dem zu bremsenden Teil (10) anhand eines Verbindungsschafts (22) verbunden ist, der sich im rechten Winkel zu den beiden Gelenkwellen (12, 36) der beiden Teile (10, 20) erstreckt, während der Verbindungsschaft (22) gelenkig an dem zu bremsenden Teil (10) angebracht ist und frei eine Öffnung (40) des Bremsteils (20) durchquert, während die Scharfmachfeder (14) um den Schaft (22) montiert ist und auf das Bremsteil (20) und einen Höcker (35) aufliegt, der im Mittenteil des Schafts (22) vorgesehen ist, und dadurch, daß die beiden Gelenkwellen (12, 36) sich in unterschiedlichen Entfernungen (D1, D2) von der Achse (X-X) des Verbindungsschafts (22) befinden, damit die Rückholkraft der Scharfmachfeder (14) im gespannten Zustand, wenn sich das zu bremsende Teil (10) in seiner ersten Stellung befindet, gleichzeitig auf die beiden Teile (10, 20) angewandt wird und zwei antagonistische Momente (C1, C2) ergibt, um die Bewegung des Teils (20) über mindestens einen Teil der Verschiebung zu seiner zweiten Stellung zu bremsen.
  3. System gemäß dem Anspruch 2, gekennzeichnet dadurch, daß das zu bremsende Teil (10) der Hammer eines Betriebsmechanismus einer Kleinkabliber-Feuerwaffe ist.
EP95401099A 1994-06-16 1995-05-11 Bremssystem für die Bewegung des Hahns einer Feuerwaffe Expired - Lifetime EP0689026B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407356 1994-06-16
FR9407356A FR2721388B1 (fr) 1994-06-16 1994-06-16 Procédé et système pour freiner le mouvement d'une pièce armée par un ressort et animée d'un mouvement pivotant alternatif.

Publications (2)

Publication Number Publication Date
EP0689026A1 EP0689026A1 (de) 1995-12-27
EP0689026B1 true EP0689026B1 (de) 2000-03-01

Family

ID=9464273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401099A Expired - Lifetime EP0689026B1 (de) 1994-06-16 1995-05-11 Bremssystem für die Bewegung des Hahns einer Feuerwaffe

Country Status (5)

Country Link
US (1) US5653051A (de)
EP (1) EP0689026B1 (de)
AT (1) ATE190130T1 (de)
DE (1) DE69515215T2 (de)
FR (1) FR2721388B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7743543B2 (en) 2005-10-06 2010-06-29 Theodore Karagias Trigger mechanism and a firearm containing the same
US9377255B2 (en) 2014-02-03 2016-06-28 Theodore Karagias Multi-caliber firearms, bolt mechanisms, bolt lugs, and methods of using the same
US11067347B2 (en) 2018-11-30 2021-07-20 Theodore Karagias Firearm bolt assembly with a pivoting handle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459158A (en) * 1946-09-11 1949-01-18 John C Garand Hammer retarder for automatic firearms
US2622359A (en) * 1948-01-21 1952-12-23 Enzo Bernardelli Firing mechanism for guns
US2791942A (en) * 1954-01-08 1957-05-14 David C Fletcher Rate reducer for a firearm
US3015993A (en) * 1959-08-05 1962-01-09 P Az Luigi Franchi Soc Selective fire converter and rate reducer
US3301133A (en) * 1965-01-21 1967-01-31 Colt S Inc Mechanism for changing rate of automatic fire
US3724325A (en) * 1971-08-24 1973-04-03 Colts Ind Operating Corp Rate reducer
DE3130761C2 (de) * 1981-08-04 1984-01-05 Heckler & Koch Gmbh, 7238 Oberndorf Automatische Handfeuerwaffe oder Maschinengewehr
US5280683A (en) * 1991-12-13 1994-01-25 Keng's Firearms Specialty, Inc. Firing mechanism with pivoting sear

Also Published As

Publication number Publication date
ATE190130T1 (de) 2000-03-15
FR2721388A1 (fr) 1995-12-22
FR2721388B1 (fr) 1996-08-14
DE69515215T2 (de) 2000-07-13
EP0689026A1 (de) 1995-12-27
US5653051A (en) 1997-08-05
DE69515215D1 (de) 2000-04-06

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