CN1003805B

CN1003805B - Firing mechanism

Info

Publication number: CN1003805B
Application number: CN85104208.2A
Authority: CN
Inventors: 诺曼·特雷弗·布林特
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-06-01
Filing date: 1985-06-01
Publication date: 1989-04-05
Also published as: CN85104208A

Abstract

The present invention relates to a firearm shooting device, particularly to a device for shooting a single bullet with a large caliber. The firearm shooting device has fewer movable parts, and the design of the present invention is simple. The present invention is provided with a cam device with a double-arm crank, wherein one arm is connected with a trigger of a firearm, and the other arm has a first convex surface to tightly lock a gun bolt on the shooting device. A second convex surface locks and releases a firing pin. The two devices are also shown in figure 2. Bullets in a chamber (14) are tightly locked before shooting. After the bullets are shot, a cartridge case is dropped out of the chamber.

Description

Emitter

The relevant a kind of emitter of the present invention.

Revealed a kind of firearm in the Britain 2081429A patent application, it can launch multiple bullet.As gas howitzer or the like.This kind firearm comprises a body of a gun, has one can adorn the bore that there is the bullet of a bump trigger at a rear portion on the body of a gun.And has the translot that bullet can be introduced or discharged bore at least, the bore back be one can inactive state to the rifle bolt that moves between the percussion state, the rifle bolt band the bullet reach, make sub warhead in place on a seat of bore front end, make its ignition and bullet is launched by the striker front end on rifle bolt bump trigger.The plate machine drives rifle bolt and striker motion, and emitter comprises and the motion of plate machine is sent to rifle bolt and breech-block is locked on transmitting site.

The drive unit of this a kind of firearm has been revealed in the application of being delivered in the past.This device comprises a sear that center toggle linkage structure and are contained on the body of a gun locking and release striker when the plate machine move of crossing at locking rifle bolt on the transmitting site.

The design of firearm still continue to require as far as possible the to take in sail quantity of parts, and these parts that interrelate should be reliably and simple.One object of the present invention is exactly more can satisfy this requirement than former invention.

Therefore first aspect of the present invention has just provided above-mentioned a kind of emitter, is characterized in that the activity of plate machine makes cam mechanism shift to firing position from resting position.First cam surface of cam gear contacts the promotion rifle bolt and shifts to firing position from resting position with the cam surface on the rifle bolt, and on transmitting site, rifle bolt locking is removed from transmitting site until the plate machine, second cam contacts with the cam surface of striker in resting position is shifted to the process of transmitting site and has stoped striker to advance at cam mechanism.When the plate machine was in the emission locked position, striker moved forward, and apparatus to cause bursting is ignited.

One particle bullet is pushed above-mentioned firearm bore, and the method that withdraws from bullet after emission from bore may further comprise the steps.

(1) first pair and second pair of field of conjugate action are arranged, every pair stationary face is positioned on the bullet rear end face, and active face all is positioned on the front of rifle bolt.First pair of field of conjugate action has a lock pawl, puts into bore when bullet, and when rifle bolt was in resting position, this limited bullet to the field of conjugate action and ejects from bore.Second pair of field of conjugate action is locking device, and restriction bullet rear end laterally moves when bullet moves forward into emission state.

(2) two active face are laterally separated on rifle bolt, the distance between two stationary faces at its spacing and bullet rear portion is different.

(3) shape of the field of conjugate action is such, although above-mentioned horizontal spacing difference can cooperatively interact with active face at the stationary plane of rifle bolt second pair of field of conjugate action when resting position moves forward to transmitting site.

(4) move forward in the transmitting site process from resting position when rifle bolt, active face and corresponding stationary face in the first pair of field of conjugate action are thrown off.

(5) when rifle bolt is mobile backward, active face in the second pair of field of conjugate action and corresponding stationary plane are thrown off.The shape of first pair of field of conjugate action is such, moves past no longer engagement in the journey behind rifle bolt, penetrates at bullet, when rifle bolt was got back to quiet state, first pair or second pair of field of conjugate action did not engage, thereby, when rifle bolt was got back to resting position, bullet will withdraw in bore.

Invention respective embodiments therewith is as follows:

In an example, the movable part of first pair of field of conjugate action is a lock plunger; Second pair be a locking pin, lock plunger and being locked in two parallel holes of rifle bolt.Lock plunger and locking pin are that rocking arm by being installed on the rifle bolt pivot is finished moving forward and backward in the rifle bolt, rocking arm and its both sides lock bolt and locking pin engages, an end of rocking arm engages with the rifle bolt that slides in the body of a gun.

In order further to understand the present invention, more clearly express and how this invention is put into practice, now accompanying drawing is described with example.

Fig. 1 is the vertical longitudinal sectional drawing of the diameter of a portable firearm rifle bolt, can load onto single hall load such as gas howitzer in the rifle bolt.

Fig. 2 is the local horizontal profile that cuts along Fig. 1 II-II line.

This firearm comprises a body of a gun 10, and a gun barrel 11 is arranged on the body of a gun.A plate organizational security danger device 12 and an afterbody sight 13, single hall load (end shows among the figure) is put into 14 li of bores through opening 15, to pressing down tablet 16, this flat board can be sprung back in the original bore by the compression spring 17 of its below, the effect of this flat board 16 and spring 17 is after bullet is launched shell case to be withdrawed from bore, will illustrate below.

In the rear end of gun barrel 11 and the leading edge of bore a seat 20 is arranged, the leading edge profile of seat 20 is steps 21, and when bullet was in transmitting site, its bullet was with on step 21.In other words, bullet is introduced into cartridge chamber 14 before by percussion, and when resting position, bullet is on the leading edge 22 of cartridge chamber 14, and when transmitting site, bullet is on edge rank 21.

This forward mobile is by the advancing slip drive of the rifle bolt 25 at bore rear portion.Rifle bolt 25 is equipped with striker 26, and its syringe needle 27 is to pass through Quenching Treatment.Should be under the position normal condition of striker at the rear of the front end face 28 of rifle bolt 25, and the boat tail apparatus to cause bursting that can in rifle bolt, move fully its syringe needle collision rifle bolt 25 front ends 28 are contacted, the relative motion of 26 pairs of rifle bolts 25 of striker is restrained by the helical spring 29 on striker.One end of spring is near the step of striker, and the other end is near an inner liner in the rifle bolt.

Plate machine 41 has an alignment pin 42, slit 43 engagements on one arm 44 of this pin and a bell crank 45, bell crank is contained on the body of a gun 10 with trunnion 46, plate machine 41 is contained in 40 position of the body of a gun 10, can rotate, another arm 47 of crank has an alignment pin 48, this pin meshes with the slit 49 of the horizontal expansion of rifle bolt 25, we can see, pull plate machine 41, pin 42 just moves after the meeting, and sell 48 reaches, such reach makes pin 48 slide along the leading edge of slit 49, as the plate machine is fully pulled back, pin 48 is compared the position of will slippage to crossing the center with trunnion 46, and such power that imposes on rifle bolt backward (as when bullet of percussion) will be ordered about first arm 44 of crank 45 and be moved after further rather than move forward.When percussion lock moves to this point, the rear end face 50 of plate machine is collided with the front end face 51 of plate organizational security danger device 12, arrive this, crank arm 44 just can not be have again moved backward, the crossing the center thereby played the effect of pinning rifle bolt when rifle bolt advances percussion of crank 45.

Second Rocker arm 47 of crank cam device 45 has a cam surface 60 towards the rear, this face is in cam surface 61 engagements of striker 26 rear ends and face forward, on the cam surface 60 have a centering axis 46 all to keep same radial distance, like this, when cam gear 45 rotations, although rifle bolt 25 moves forward, the position of striker 26 still remains unchanged.The effect that extruding is placed on the helical spring 65 between the collar 66 and inner liner 31 on the striker 26 has been played in this relative motion.

Second cam surface 60 disconnects suddenly at release end 62 places.The axle that discharges end 62 and trunnion 46, alignment pin 48 is on the same line, when crank 45 when move at the center of crossing, cam surface 60 discharges striker 26, the impetus forward that is subjected to spring 65 simultaneously makes the priming device of striker percussion bore 14 lining bullets, in bump, spring 29 pressurizeds, thereby, after bump, the syringe needle of striker 26 is brought back to the position backwards, front 28 of original rifle bolt 25 by spring 29.

When the plate machine released, when transmitting site moves on to resting position, crank 45 is rotated in a clockwise direction as shown in FIG., at this moment, domes 63 among the figure comprise convex surface 60, cam surface 61 beginnings on pillar 64 and the striker are moved along their lines of motion separately and are returned on the original position, this motion also be accompanied by simultaneously along pillar 64 towards back cam surface end face 70 camming movement of being carried out forward on domes 63, the whole camming movement that reaches to end face 61 rear portions that cam surface 60 is promoted is, the crank 45 process cam that turns clockwise promotes striker 26 and moves forward to a certain degree, the cover of the striker 26 that rifle bolt is 25 li has certain interval causes striker to move forward, and, spring 29 between two parts is because this relative mobile being squeezed, after cam face 70 is left striker, spring will drive striker 26 and retreat the position that enters as shown in Figure 1 like this.

It is necessary that the plate facility have the normal biasing device 72 from the transmitting site to the resting position, and this biasing device just makes crank and rifle bolt get back to resting position from firing position just, and the employing of bell crank cam gear 45 has produced prior advantage.This device is only intermediate active parts between plate machine 41 and rifle bolt 25 and the striker 26.

Let us is consulted Fig. 2 now, rifle bolt 25 is in resting position as shown in the figure, the front 28 of rifle bolt comprise the groove 80 of a right-hand lay and left-hand to groove 81, this two groove is used for being placed in the annular ridge position at bore 14 lining bullet rear portions, ammunition is boundless body preferably.Like this, this annular ridge is just in the cylinder blanket the inside of bullet, but annular ridge also can be the edge of band edge ammunition.

Therefore, after a bullet was put into bore 14, the limit ridge of bullet just was meshed with groove 80 and 81.When loading, lock plunger 82 is by a compression spring 83 and shown in Figure 2ly shift proal position onto, and is at first pushed to backward in the thorax of rifle bolt by an end of bullet.But, in case bullet enters into bore 14 fully, lock plunger 82 just with bore 14 rear end face corresponding grooves engagements, so just protected the bullet of 14 li of bores not launched spring 17 and ejected.

On rifle bolt 25, load onto a rocking arm bolt 84 with pin 85.End on this rocking arm bolt 84 is set in groove 87 the insides of the body of a gun 10, at one end 86 and trunnion 85 between; rocking arm bolt 84 can extend by the slit on the lock plunger 82 88; gap is left in the centre; the other end 89 of rocking arm bolt 84 is in the groove 90 of locking pin 91, and locking pin can slide in the hole 92 of 25 li of rifle bolts.

Like this, when pulling plate machine 41,25 pairs of body of a guies of rifle bolt 10 are relatively during reach, rocking arm bolt 84(such as Fig. 2) along counterclockwise rotation is until being in transmitting site, locking pin 91 has slided into foremost.82 pairs of body of a guies 10 of lock plunger move forward relatively, yet rocking arm bolt 84 can promote the bullet that the relative rifle bolt 25 of lock plunger moves backward and promotes to be meshed with the contact of slit 88 rear end faces.

The afterbody of bore 14 neutron bombs has one second groove, and the front end 93 of locking pin 91 can embed in this groove.The lateral clearance of two grooves in bullet rear end is different from the lateral clearance between lock plunger 82 and the locking pin 91.But the shape of lock plunger 82 is such, although lateral clearance difference, when rifle bolt travels forward, locking pin 91 can freely mesh with the bullet corresponding grooves, when rifle bolt moves on to firing position, lock plunger 82 is thrown off from its corresponding grooves backward, the transverse movement restriction of bullet rear end from 82 titles of lock plunger to locking pin 91.

When rifle bolt 25 when transmitting site is forward got back to resting position; rocker-arm roller pin 84 correspondingly is rotated in a clockwise direction; and in the groove of bullet locking pin 91 is extracted out; at this moment the lateral clearance difference between two pins on bullet groove and the rifle bolt 25 just can stop lock plunger 82 and groove to mesh effectively again; thus; when coming back to resting position; lock plunger 82 and pin 91 all can not engage with bullet; so; at this moment bullet withdraws from bore by the effect of spring 17 and tablet 16 with can having no to hinder; withdraw from after the bullet, lock plunger 82 under the effect of spring 83 to front slide so that another particle bullet is reinstalled 14 li of bores.

Spring 17 is the cylindrical coiling springs in square section, but also can adopt the spring of other pattern.

As leaf spring etc., it is the arch at center that cam surface also needn't necessarily adopt with axis 46, can be shaped form, as long as when rifle bolt moves forward striker is pulled back, second arm of crank also can prolong the part that becomes rifle bolt.

Here " ammunition ammunition " only should only not be understood that with doing the military purposes emitting substance, and should comprise civilian emitting substance as flare in danger etc.

Claims

1, the emitter of a firearm, it comprises the body of a gun (10), clip-fed bore (11), percussion apparatus to cause bursting in the rear end, a translot (15), bullet is pushed and with its discharge by this groove, there is a rifle bolt (25) that can move to firing position from resting position at the bore rear portion, the front portion that can drive bullet when resting position moves forward enters into the bullet seat (20) of bore front end, striker (26) is driven by rifle bolt (25), rifle bolt front end initiation by impact device triggers bullet and it is launched, plate machine (41) promotes rifle bolt and striker, emitter comprises the structure that the plate machine is moved and is delivered to rifle bolt and rifle bolt is locked at transmitting site, it is characterized in that, first cam surface (48) that moves through cam gear (45) of plate machine (41) is meshed with the cam surface (49) on the rifle bolt (25) and promotes bolt and also rifle bolt (25) is fixed on transmitting site from resting position to transmitting site and throws off from transmitting site up to plate machine (41), second cam surface (60) meshes with the cam surface (61) of striker, the prevention striker moves forward in the transmitting site process when cam gear (45) is shifted to from resting position, when rifle bolt is in transmitting site, striker travels forward, and apparatus to cause bursting is ignited.

2, according to the emitter of claim 1, it is characterized in that, cam gear is arranged to bell crank (45) and is fixed on the body of a gun with pivot (46), and an arm (44) of crank engages with the plate machine, and another arm (47) drives first cam surface (48) and second cam surface (60).

3, according to the emitter of claim 2, it is characterized in that, the form of first active and passive camming movement face is pin (48) and groove (49), did the center rotation at rifle bolt along above-mentioned pivot (46) when transmitting site moves, rifle bolt forces rocking handle further to rotate to the transmitting site direction along resting position to the reaction of rocking handle during emission bullet.

According to the emitter of claim 2 or 3, it is characterized in that 4, second cam surface (60) has one to be the circular arc at center with pivot (46), when rifle bolt moved, the spring assembly between striker and the rifle bolt (65) constantly compressed and makes the striker accumulation of energy.

5, according to the emitter of claim 1 or 2 or 3, it is characterized in that, striker can freely move forward in rifle bolt when rifle bolt is in resting position, make the active of second cam gear and passive cam surface at rifle bolt and cam gear when firing position is separately retracted resting position, can pass through mutually.

6,, it is characterized in that rifle bolt includes according to the emitter of claim 1 or 2 or 3:

(1) lock plunger (82) that is driven by rifle bolt (25), it and rifle bolt relative motion and forward position and bullet rear end face corresponding interlocking structural engagement between the rifle bolt front and rear part;

(2) lock plunger is shifted onto the device (83) of forward facing position;

(3) when rifle bolt (25) when resting position moves forward, the pressure that overcomes thrust unit is with the anteposition position backward position position device (84) that move of lock plunger from it.

(4) driven by rifle bolt (25), in rifle bolt with respect to rifle bolt, at a locking pin (91) that moves between the position after stretching out in front position that the rifle bolt front surface engages with bullet and.

(5) when rifle bolt (25) when resting position moves forward, the back position state of locking pin (91) from it promoted to the anteposition position, pinning the bullet of rifle bolt front end, and at this moment rifle bolt is in the device of transmitting site.

(6) when bullet and rifle bolt joint, lock plunger (82) can move laterally bullet to rifle bolt, thereby when rifle bolt is mobile backward after bullet is pulled the trigger, position, the back position different locking configurations that lock plunger (82) quilt projectile tail portion is pressed onto it engage, thus rifle bolt when getting back to resting position cartridge case ejected.