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
  • F41A3/00—Breech mechanisms, e.g. locks
  • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
  • F41A3/72—Operating handles or levers; Mounting thereof in breech-blocks or bolts
• • 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
  • F41A19/10—Triggers; Trigger mountings

Definitions

• the present invention relates to a weapon with a handle rotation, more specifically a firearm equipped with a reciprocating control mechanism of a cylinder head (14). and a detent mechanism, characterized in that the mechanism comprises means for actuating in limited rotation the firing handle (2) to ensure said reciprocating movement of the yoke (14) and its locking in closed position.
• the object of the invention is to solve these two problems.
• the mechanism for arming by alternative rotation of the firing handle with linkage linkage described below is applied, in one embodiment, to a rifle for right-handed repetition manual type sporting .22 caliber long rifle used for BIATHLON.
• This invention minimizes the movements of the shooter during arming operations.
• the hand, during the control of the movement of the breech (opening, closing, locking), remains in its gripping position of the shooting handle without any movement of the shoulder.
• the hand holding the firing handle, rotates the wrist flexion-extension movement corresponding to about a quarter turn of the handle.
• this mechanism has the effect of moving the center of gravity of the weapon towards the shooter bringing a better stability and possibly allowing an elongation of the barrel.
• the application of the invention is particularly interesting for manual repetition weapons, especially those intended for sports shooting disciplines such as BIATHLON, for which only manual repeat systems are allowed. It should be noted that the original position of the loader support (38) by its accessibility and visibility facilitates the handling of the loader
• This weapon can be made for right-handed or left-handed users.
• FIG. 1 (scale 1) simplified front view of the weapon, without butt, showing the sets in motion; the pivoting assembly ( Figure 6) and the assembly formed by the cylinder head ( Figure 10).
• the mechanical arming connection is made by a rod (1), U-shaped, assembled on two integral axes (25,26) respectively of the yoke (14) and the plate (36), itself integral with the shooting handle (2).
• This rod (1) allows the cylinder head (14) to perform its rectilinear reciprocating extraction and intake movement, by a partial rotary movement of the pivoting assembly formed by the firing handle (2) with the plate (36) integrating the trigger mechanism.
• This alternative partial rotation is performed by a back and forth of the order of a quarter of a turn (in the forward direction for a right-handed configuration or screwing for a left-handed configuration).
• An indexing (16) allows the pivoting assembly formed by the firing handle and its control mechanism to remain stable in the position of the axis of the barrel (4) ensuring the locking on closing the cylinder head.
• This indexing can also be implemented at the front of the plate under the engagement setting (34).
• a lug (17), integral with the receiver (11), moves in a circular groove of the plate (36). The ends of this groove serve as stops limiting the rotation of the pivoting assembly and thus the movement of the cylinder head.
• the rotation of the pivoting assembly comprising the trigger mechanism required the creation of an original mechanism, allowing axial transmission of the expansion control to the firing pin. This mechanism is described below.
• the trigger mechanism is integrated in a plate (36), which is integral with the firing handle (2), the assembly being movable about a vertical axis (3) in the axis of the firing handle (2). ).
• the trigger mechanism comprises an expansion tail (9) fixed on an action lever (20) which pivots about an axis (18) integral with the plate (36). This lever drives by a hinge the control rod (8) which releases the trigger (13).
• This trigger is located in the axis of rotation of the firing handle (2) and releases the firing pin (12). Thus the head of the firing pin hits the cartridge.
• the trigger (13) is of cylindrical shape. It is located on the same vertical axis as the axis of rotation of the pivoting assembly. This allows, despite the rotation, a transmission of the control of the trigger to the striker.
• the trigger head (13) is defined as the top end of the trigger on the side of the firing pin.
• the striker's heel is defined as the place of contact, that is to say of the attachment with the trigger head.
• the striker heel (12) and the trigger head (13) have, instead of their contact, a reduction angle limiting the force exerted vertically on the trigger and thus on the trigger tail (9).
• This angle is of the order of 18 ° in the clockwise direction relative to the axis of rotation of the firing handle (2).
• the head of the trigger control rod (8) is defined as the end of the control rod in contact with the trigger shank.
• the trigger (13) is indexed radially by a lug (23) in order to maintain it always in the same axis with respect to the receiver (11) and therefore the firing pin (12). It slides in a ball bushing (24) to minimize friction.
• Its base comprises a flat part for releasing it from the contact of the head of the control rod (8), at the end of rotation of the handle (corresponding to the end of the opening of the cylinder head).
• a return spring (15) ensures the raising of the trigger, exerting a force much lower than that due to the action of the firing pin.
• the control rod (8) is connected to the action lever (20) by a "sliding-caliper" -type articulation for transforming the reciprocating pivoting movement of the action lever into an alternating translation of the control rod.
• the movement being weak, it is made by a shaft integral with the control rod (held by two circlips) housed on both sides in two oblong holes of the action lever forming at this point a fork leaving the free passage to the control rod.
• the control rod (8) translates into two pads (40) integral with the plate to limit friction.
• the control rod (8) is supported on the side of the trigger, via an abutment ring held by a circlip, to the return spring (7).
• This spring located on the axis of the control rod itself is supported, on the side of the trigger, on a stop (39) adjustable in translation by a screw (19).
• This spring ensures resistance to the shooter's finger and its return in case of releasing the pressure of the finger of the shooter until the start of the shot has not occurred.
• This spring is able to overcome the resistance due to the force exerted vertically trigger on the head of the control rod mentioned above.
• a screw (37) acting as an adjustable stop, allows the adjustment of the initial position of the action lever supporting the trigger tail (20).
• a light made in the lever of action of the trigger tail (20) allows the passage of the adjustment tool, the handle being in open cylinder position.
• the top of the action lever (20) comes into contact perpendicularly (in tripping limit) with a stop (5) and its spring (6).
• Both are adjustable by screws (33 & 34) and are located offset on the axis of the control rod. This allows the shooter to feel on the index the ultimate point of resistance before the trigger.
• the trigger tail (9) is fixed to the action lever (20) by a dovetail or partially cylindrical type assembly with its locking screw (30) allowing the longitudinal adjustment of the trigger tail depending on the hand of the shooter.
• the percussion mechanism is formed inside the cylinder head
• the cylinder head is cylindrical, it is attached to a link (42).
• This bolt connection has the role of supporting the fastening screw of the connecting rod (25) which provides the connection with the casing.
• Grooving and a bore in the breech box (11) allow the free movement of the breech therein.
• An interchangeable adjusting ring of the head space (35) allows precise positioning of the cylinder head in the closed position. The mounting of the cylinder head is performed by the rear prior to attachment to the rod.
• the breech has a groove allowing the free passage of the trigger head in the high position and the trough (31).
• the loading operation is performed at the closing of the cylinder head.
• the cylinder head has a bore in which is housed the head of the striker. At its opposite axis, the cylinder head is profiled with two lateral clearances in order to extract the cartridge from the magazine by pushing it towards the barrel.
• the bucket (31) is fixed by a screw to the receiver (11). It is located between the trigger and the barrel, its width is identical to the diameter of the head of the trigger, its height is less than the space required for the passage of the lower part of the striker. It has, on its top, a cylindrical imprint corresponding to the diameter of the base of the cartridge.
• the cylinder head ends its closing stroke by locking under the action of the indexing (16) of the pivoting assembly.
• the ejection operation is performed at the opening of the cylinder head.
• the breech has a groove allowing the free passage to the stop of ejection of the case (27). At its opposite axis is fixed the extraction hook of the case (28).
• the ejection of the holster is first under the action of the extractor (28) which withdraws the holster from the barrel and the ejection stop (27) which projects the holster laterally upwards. through the ejection window of the receiver.
• the ejection window is large enough to allow hand loading of a cartridge.
• the breech box (11) is the central fastening piece including main elements such as the barrel (4), the axis of the pivoting handle, the loader support and the butt.
• This configuration allows to separate mechanically the four functions related to the cylinder head namely, admission, percussion, extraction and ejection. Thus it allows a simplification of the parts and a better maintenance.
• the breech box (11) has on its front top a standard dovetail profile for fixing the rise.
• Two bores (32) are provided in the breech box (11) to secure the butt.
• the butt (41) has on its left a clearance allowing the free movement of the pivoting assembly.
• the stick mainly ensures the holding of the weapon by the shooter.
• the stick as the shooting handle may be in particular wood or plastic, the other parts being metal.
• the main parts to modify for a left-handed weapon are, the stock (clearance for the pivoting assembly and specific ergonomics), the trigger (inversion), the turntable (circular groove), the shooting handle (in the case of ergonomics specific to each hand), the breech box (inversion configuration cross of St. Andrew), the breech (idem), and the barrel (bleeding for the extractor).
• This invention can be applied to other types of weapons by modifying the mechanical arming link.
• the mechanical arming link ensuring the transmission of the alternating rotary to reciprocating motion is modified to no longer be rigid (static) but extensible (dynamic) with a bolt return spring.
• This spring of the mechanical connection of armament allows the cylinder head to back down under the action of the shot of the cartridge and to allow the automatic rearming.
• this alternative partial rotation control of the firing handle is applied for the initial arming of the automatic and semi-automatic weapons by a bolt return spring.
• the trigger mechanism blocks after each shot the trigger in the high position and allows the next shot under the action of a new finger pressure of the shooter on the trigger tail which releases the trigger again.
• the link linkage is not the only type of mechanical connection that can perform the function of transforming a rotary motion into rectilinear motion.
• a rack is able to perform this function.
• the mechanical connection arming is performed by a rack.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Portable Nailing Machines And Staplers (AREA)
• Toys (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Lock And Its Accessories (AREA)
• Pinball Game Machines (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (6)

• 2005
  • 2005-06-21 FR FR0506240A patent/FR2887325B1/fr not_active Expired - Fee Related
• 2006
  • 2006-06-15 EP EP06778596A patent/EP1904803B1/de not_active Not-in-force
  • 2006-06-15 DE DE602006007145T patent/DE602006007145D1/de active Active
  • 2006-06-15 AT AT06778596T patent/ATE433091T1/de active
  • 2006-06-15 WO PCT/FR2006/001351 patent/WO2006136681A2/fr not_active Ceased

Non-Patent Citations (1)

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