EP0078867A1 - Mécanisme sélectif de détente pour armes à feu à canons multiples - Google Patents

Mécanisme sélectif de détente pour armes à feu à canons multiples Download PDF

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Publication number
EP0078867A1
EP0078867A1 EP81305253A EP81305253A EP0078867A1 EP 0078867 A1 EP0078867 A1 EP 0078867A1 EP 81305253 A EP81305253 A EP 81305253A EP 81305253 A EP81305253 A EP 81305253A EP 0078867 A1 EP0078867 A1 EP 0078867A1
Authority
EP
European Patent Office
Prior art keywords
sear
trigger
release means
barrel
trigger unit
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.)
Ceased
Application number
EP81305253A
Other languages
German (de)
English (en)
Inventor
Richard G. Waddell
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.)
Stern Edgar Bloom Jr
Stern Eric Alan
Original Assignee
Stern Edgar Bloom Jr
Stern Eric Alan
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 Stern Edgar Bloom Jr, Stern Eric Alan filed Critical Stern Edgar Bloom Jr
Priority to EP81305253A priority Critical patent/EP0078867A1/fr
Publication of EP0078867A1 publication Critical patent/EP0078867A1/fr
Ceased 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
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/18—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns
    • F41A19/19—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns with single-trigger firing possibility
    • F41A19/21—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns with single-trigger firing possibility having only one trigger

Definitions

  • the field of the invention is that of multiple barrel firearms e.g. double-barrelled guns of the over and under configuration.
  • a part such as the actuator block or sear release has to be moved in response to recoil inertia in order to set up conditions for it to be positioned for firing of the second barrel.
  • the present invention provides a trigger unit for a multiple-barrel firearm, comprising individual hammers and sears associated with each barrel characterised by a trigger for actuating the sears individually, sear release means positioned to be actuatable by the trigger for actuating either one of the individual sears, said sear release means being mounted to be positionable to actuate a second sear after a first has been actuated, and means related to the sear release means whereby upon actuation of the first sear, the said sear release means is moved whereby to actuate the second gear upon a further pull of the trigger, said related means being constructed to be independent of recoil and counter-recoil of the firearm.
  • a lateral adjustment of a transfer block and sear actuator block determines which hammer is to be released first, by way of a sear actuator block engaging one or the other of the sears.
  • its hammer pilot spring rod moves forwardly to allow the sear actuator block to move to a more forward position, wherein it can then engage a secondary shoulder on the other sear. In this manner, either barrel can be selected to be fired first and the other barrel will be fired upon the second pull of the trigger.
  • the trigger mechanism does not depend upon inertia movement of the actuator block or any other part to set up conditions for firing of the second barrel.
  • a part such as the actuator block has to be moved in response to recoil inertia in order to set up conditions for it to be positioned for firing of the second barrel.
  • the invention is an improvement in the trigger mechanism of U.S. Patent No. 3,766,677.
  • the trigger mechanism of the invention as described herein, may be embodied in a gun, which is similar to that of the previous patent, the disclosure of which is hereby incorporated herein by reference.
  • the firearm or gun which is shown by way of example, is shown as an over and under type, having two barrels, one positioned over the other.
  • the barrels may be rifle barrels of different caliber, or may be shotgun barrels.
  • the gun as shown is of the breakopen type like that of the previous patent referred to.
  • the gun as shown has a receiver 12, and the gun includes a barrel housing, which is pivotally secured to the receiver 12 by trunnion lugs, such as that shown at 14.
  • the stock 16 is conventional and is secured to the receiver 12 in a known manner.
  • a release lever may be provided which enables the action to be broken, this mechanism being like that of the prior art referred to.
  • Numeral 24 designates the selector lever, which enables the operator to select a position for firing either of the two barrels as will be described more in detail hereinafter.
  • the receiver 12 may typically be fabricated from a single piece of metal, such as steel, having a top with side wings 30 and 32, this construction preferably being like that of the previous patent.
  • the inside of the plates 30 and 32 may be formed to provide channels to receive an insertable breech block, not shown, which may be like that of the prior art patent.
  • the breech block may have firing pins mounted in it in bores that are angular to each other. the firing pins operate against a spring within the breech block; this construction might be like that of the previouspatent.
  • the trigger group or trigger assembly or mechanism is identified as a whole by the numeral 40.
  • the trigger mechanism or unit is removable from the gun by way of a bottom opening 41 in the receiver.
  • the trigger mechanism includes a frame 44 having side plates 45 and 46, having a configuration as shown, which are upstanding from a base member 48.
  • a base member 48 At the front end of the base member is an angular shoulder 52, which can hook over a ledge at the bottom of the channel or way in the receiver in which the breech block is received and then the trigger unit can be latched in position in the receiver, by way of a spring latch.
  • Carried by the frame 44 is trigger guard 58, the trigger being designated by the numeral 60.
  • the improvement of the invention resides primarily in the trigger mechanism and the selector means.
  • This mechanism is shown more in detail in Figures 3 to 6, which are in part schematic, Figure 3 being an exploded view, to clearly illustrate the relationship of the parts.
  • the trigger mechanism is a self-contained sub-assembly, which is controlled in part by the selector switch as will be described.
  • the assembly carries the hammers, the hammer springs and the hammer spring guide or pilot rods, which cooperate with the actuator block or sear release to initially fire the barrel selected and to subsequently fire the remaining barrel with a second pull of the trigger, as will be described.
  • the hammer srping rods cooperate to accurately position the actuator block or sear release to permit only the firing ofone barrel at a time with each pull of the trigger.
  • the hammers are designated at 70 and 70', the hammers being pivotally mounted on a shaft 72, extending between the sides 44 and 45 of the frame 44.
  • the hammers have a configuration, as shown in the Figure adapting them to come into a striking relationship with the firing pins, as previously described.
  • the hammer 70 has an extending toe 73, which can cooperate with the cam 74 on a shaft 75, the cam having two diametrically opposed radial shoulders, as shown.
  • the cam can be actuated by a cocking lever, now shown,-for cocking the hammers.
  • the hammer 70 also has a downwardly extending toe 78, below pivot 72, having a purpose which will be referred to again presently.
  • the two hammers are alike, so that both need not be described in detail.
  • Numerals 80 and 80' designate a pair of hammer springs.
  • the hammer springs are around the hammer spring rods or pilot rods as designated at 82 and 82'.
  • a rounded member 86 At the end of the hammer spring pilot rod 82 there is provided a rounded member 86, which is received in a slot of arcuate configuration, as designated at 87, which is formed in a slanting surface 88, at the rear of the hammer 70.
  • the other hammer spring pilot rod similarly engages the other hammer 70'.
  • Numeral 94 designates a spring guide block, which is secured between the side wings, at the rear of the side plates 45 and 46 of the trigger unit, by way of a transverse pin as designated at 95 and 96 in Figure 1.
  • the block 94 is rectangular in cross-section, having side ribs, as shown at 97 and 98, which are received in channels in side wings 45 and 46, as may be seen in Figure 2. It has two parallel bores in it as designated at 102 and 102' and the ends of the hammer spring pilot rods 82 and 82' extend through these bores, as may be seen illustratively in Figures 4 and 5.
  • the sears are identified by the numerals 134 and 134'.
  • the sears are carried on a transverse shaft 135 extending between the sides 45 and 46 of the frame 44.
  • the sears have a shape as shown in figures 3, 4, and 5.
  • the sear 134 has n forwardly extending part, the end of which forms a toe 136 which cooperates with a notch 137, formed in the lower end part of the hammer 30. Counter-clockwise movement of the sear 134 will release the hammer 70 to a firing position.
  • the sear 134 At the rear end of the sear 134, it has a configuration, as may be seen in Figure 3, including an indentation formed in its upper surface, as shown at 142. See Figure 3.
  • Engaged against the surface is a sear spring 143, which is seated in a bore 144 formed in the spring guide block 94. The spring biases the sear toward engagement with the hammer 70.
  • the sear 134 At the rear end of the sear 134, it has an extending finger 148, on the inside of which is a square shoulder 149, and underneath the finger 148 there are two square shoulders, as shown at 150 and 151, which will be referred to again presently. See Figure 3 and Figure 4.
  • the sear 134 1 is in all respects, like the sear 134, and therefore it need not be described in detail. This is true also of hammer 70' and its hammer spring and pilot rod.
  • the trigger 60 has an upper part as designated at 158 and it is pivotally mounted on a transverse pin 159. See Figure 3.
  • the upper part of the trigger 158 extends through an opening 160 in the base 48 of the trigger unit mechanism.
  • At the rear of the trigger is an extending platform part 162 having a shape as shown which will be referred to again presently.
  • Numeral 163 designates the trigger biasing spring. It is U-shaped as shown having two loops that engage pin 159.
  • the parts of the selector mechanism are shown in exploded view, Figure 3 and in assembled relationship in Figures 4 and 5.
  • the selector lever is designated by the numeral 24 and is positioned just forward of the trigger 60 for easy access by the user to select either one barrel or the other to be fired first.
  • the lever 24 has a pin 176 which extends upwardly through an aperture 178 formed in the upper flat surface 179 of the trigger 60.
  • a slot 180 At the rear of the flat surface 179 of the trigger is a slot 180 with part 181 overhanging this slot, as may be seen in Figure 3.
  • Numeral 188 designates the selector transfer member or lever. At one end it has a bore 190 which is received on the pin 176 so that it can be moved angularly by the lever 24. At the other end, the member 188 has transverse slot 192 as shown, and it has longitudinal slot 194. The part of member 188 below the transverse slot 192 is received in the slot 180 in the top of the trigger as previously desribed.
  • the member 188 has pivotal attachment to the actuator block or sear release as will be described.
  • the sear release or actuator block is identified by the numeral 200.
  • the configuration of the actuator block or sear release can be observed from Figures 3, 4, and 5 and also Figure 6 which is a rear view of the trigger assembly.
  • the actuator block or sear release is of angular shape as may be seen in figure 3, ,having an upright part 201 and a forwardly extending part 202, the front surface of which is bevelled as shown at 203.
  • the transfer block 200 has a downwardly extending arm 210 having an aperture in it and it is pivoted to the end of member 188 in the longitudunal slot 194 and by way of a pin 211.
  • the actuator block has a forward rectilinear configuration as designated at 214, the purpose of which will be described presently.
  • the bottom of the upright part 201 of the block 200 is bevelled as shown at 220.
  • the upright part has a bore in it as designated at 222 which then receives a spring 224 and a pin 226, the end of which is pointed and which is received in a receptaacle opening 230 in the end part 162 of the trigger 60.
  • the spring 224 normally urges the actuator block 200 in a clockwise direction.
  • Figures 4 and 5 illustrate working positions of the actuator block 200 and how its front face 203 cooperates with the ends of the hammer spring pilot rods 82 and 82'.
  • Safety means may be provided of a type which cooperates with the end part 162 of the trigger to place the firearm on safety, that is in such a position that it cannot be fired.
  • Various known types of safety means may be used as illustrated in broken lines in Figures 4 and 5.
  • selector lever 24 can be shifted to the left or to the right from the central position, so as to select either one barrel or the other to fire first.
  • lever 24 is position for firing the upper or over barrel which is fired by way of the left hand hammer 70.
  • the left hand position of lever 24 is the position for firing the other (under) barrel, by way of the right hand hammer 70'.
  • Figure 4 shows the parts with both hammers cocked.
  • the lever 24 has been shifted to the right for firing the under barrel, that is for releasing the left hand hammer 70.
  • the transfer lever 188 and the actuator block 200 have been shifted to the left so that the face 203 of the extension 202 of the transfer block 200 is engaged by the pilot stem 82 of hammer 70.
  • the ledge or corner of part 214 on the actuator block 200 is underneath the extending projection or finger 148 on sear 134.
  • the transfer lever 188 and the actuator block 200 are lifted with the trigger so that the ledge or shoulder 214 on the actuator block 200 lifts the projection or finger 148 of sear 134 rotating it in a counter-clockwise direction so that its toe 136 disengages from notch 137 of hammer 70 releasing the hammer causing the under barrel to be fired.
  • Figure 5 shows the parts in the position that they are in immediately after firing the first barrel.
  • the pilot rod 82 has moved forward, as shown, so that it does not engage the extension 202 on the actuator block 200 which has moved in a counter-clockwise direction around its pivot 211. It is now in a position wherein the shoulder or ledge 214 of the actuator block 200 is now engaged under the auxilary shoulder 151 on the right hand sear 134', the shoulder being farther forward than the finger 148'.
  • the one barrel that is the under barrel, having been selected to be fired first
  • the sequence of events as described would be similar for the second barrel.
  • its hammer Before firing the first barrel, its hammer is holding the actuator block in a rearward position. Actual release of the hammer permits the actuator block to move forward, allowing firing of the second barrel.
  • the mechanism as described provdes for selecting one barrel, or ther other, to be fired first.
  • the selector lever and its associated parts could be removed and the actuator block 200 would be permanently positioned in either a right or left hand position, bymeans of a fastening member such as a pin or screw or by permanent attachment of the actuator block 200 to the trigger 60.
  • Single barrel firing order would be achieved, but would not be selected manually.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP81305253A 1981-11-05 1981-11-05 Mécanisme sélectif de détente pour armes à feu à canons multiples Ceased EP0078867A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP81305253A EP0078867A1 (fr) 1981-11-05 1981-11-05 Mécanisme sélectif de détente pour armes à feu à canons multiples

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81305253A EP0078867A1 (fr) 1981-11-05 1981-11-05 Mécanisme sélectif de détente pour armes à feu à canons multiples

Publications (1)

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EP0078867A1 true EP0078867A1 (fr) 1983-05-18

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EP81305253A Ceased EP0078867A1 (fr) 1981-11-05 1981-11-05 Mécanisme sélectif de détente pour armes à feu à canons multiples

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0277921A2 (fr) * 1987-02-03 1988-08-10 FABBRICA D'ARMI P.BERETTA S.p.A. Dispositif permettant l'assemblage rapide d'un mécanisme de détente dans le bâti d'une arme à feu
EP0277922A2 (fr) * 1987-02-03 1988-08-10 FABBRICA D'ARMI P.BERETTA S.p.A. Mécanisme de mise à feu à détente unique pour fusils de chasse
WO1999045334A1 (fr) * 1998-03-04 1999-09-10 Verney Carron S.A. Arme a feu pour le tir de projectiles de gros calibre

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE518459A (fr) *
DE929235C (de) * 1953-10-22 1955-06-23 Hermann Zeller Einabzug fuer Doppellaufgewehre
DE1803814A1 (de) * 1968-10-18 1970-06-25 Krieghoff Ohg H Mehrlaeufige Kipplaufwaffe mit Einabzug
US3537203A (en) * 1968-04-10 1970-11-03 Roy E Weatherby Multiple barrel firearm having barrel selection means responsive to counter recoil
GB1220292A (en) * 1967-04-28 1971-01-27 Glaverbel Process for tempering vitreous and vitro-crystalline bodies
FR2150072A5 (fr) * 1971-08-13 1973-03-30 Franchi Spa Luigi
FR2175384A5 (fr) * 1972-03-06 1973-10-19 Thalmann Veb Fahrzeug Ja
US3766677A (en) * 1971-09-07 1973-10-23 Innovation Resources Corp Pivotal barrel and receiver assembly having a removably mounted breech block
DE2311402A1 (de) * 1972-10-06 1974-04-11 Castellani Bruno Gardone V T Jagdgewehr

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE518459A (fr) *
DE929235C (de) * 1953-10-22 1955-06-23 Hermann Zeller Einabzug fuer Doppellaufgewehre
GB1220292A (en) * 1967-04-28 1971-01-27 Glaverbel Process for tempering vitreous and vitro-crystalline bodies
US3537203A (en) * 1968-04-10 1970-11-03 Roy E Weatherby Multiple barrel firearm having barrel selection means responsive to counter recoil
DE1803814A1 (de) * 1968-10-18 1970-06-25 Krieghoff Ohg H Mehrlaeufige Kipplaufwaffe mit Einabzug
FR2150072A5 (fr) * 1971-08-13 1973-03-30 Franchi Spa Luigi
US3766677A (en) * 1971-09-07 1973-10-23 Innovation Resources Corp Pivotal barrel and receiver assembly having a removably mounted breech block
FR2175384A5 (fr) * 1972-03-06 1973-10-19 Thalmann Veb Fahrzeug Ja
DE2311402A1 (de) * 1972-10-06 1974-04-11 Castellani Bruno Gardone V T Jagdgewehr

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0277921A2 (fr) * 1987-02-03 1988-08-10 FABBRICA D'ARMI P.BERETTA S.p.A. Dispositif permettant l'assemblage rapide d'un mécanisme de détente dans le bâti d'une arme à feu
EP0277922A2 (fr) * 1987-02-03 1988-08-10 FABBRICA D'ARMI P.BERETTA S.p.A. Mécanisme de mise à feu à détente unique pour fusils de chasse
EP0277922A3 (en) * 1987-02-03 1989-03-22 Fabbrica D'armi P.Beretta S.P.A. Monotrigger mechanism for trapshooting guns
EP0277921A3 (en) * 1987-02-03 1989-03-22 Fabbrica D'armi P.Beretta S.P.A. Device for rapidly engaging and disengaging the trigger mechanism in the breech of a gun
WO1999045334A1 (fr) * 1998-03-04 1999-09-10 Verney Carron S.A. Arme a feu pour le tir de projectiles de gros calibre
FR2775768A1 (fr) * 1998-03-04 1999-09-10 Verney Carron Sa Arme a feu pour le tir de projectiles de gros calibre

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Inventor name: WADDELL, RICHARD G.