EP0744016A1 - Systeme d'arret de tir et de securite long feu pour une arme a feu automatique multitubes de petit ou moyen calibre - Google Patents
Systeme d'arret de tir et de securite long feu pour une arme a feu automatique multitubes de petit ou moyen calibreInfo
- Publication number
- EP0744016A1 EP0744016A1 EP95942244A EP95942244A EP0744016A1 EP 0744016 A1 EP0744016 A1 EP 0744016A1 EP 95942244 A EP95942244 A EP 95942244A EP 95942244 A EP95942244 A EP 95942244A EP 0744016 A1 EP0744016 A1 EP 0744016A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- trigger
- weapon
- tube
- sleeve
- rotation
- 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.)
- Granted
Links
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
- F41A17/18—Hang-fire prevention
-
- 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
- F41A7/00—Auxiliary mechanisms for bringing the breech-block or bolt or the barrel to the starting position before automatic firing; Drives for externally-powered guns; Remote-controlled gun chargers
- F41A7/08—Drives for externally-powered guns, i.e. drives for moving the breech-block or bolt by an external force during automatic firing
Definitions
- the invention relates to a long-range fire stop and safety system for a small or medium-caliber multitube automatic firearm, this weapon comprising a body which rotatably supports an assembly rotating about an axis parallel to the direction of firing the tubes of the weapon, this rotating assembly including in particular the tubes of the weapon and a system of loading and firing of ammunition so that the tubes of the weapon successively fire an ammunition during each rotation of the rotating assembly.
- the firing stop or long-range safety system essentially has the function of controlling the immobilization of the rotating assembly of the weapon either following voluntary actuation of '' an external command to stop firing, for example during or at the end of the firing of a burst of ammunition, either automatically following the defective firing of an ammunition by one of the tubes of the weapon to security reasons.
- the main object of the invention is to design a firing stop and long-range safety system in which the immobilization of the rotating assembly of the weapon can be carried out under the best possible conditions taking into account the kinetic energy of the revolving weapon assembly when the firing stop or long-range safety system is activated.
- the invention provides a firing stop and long-range safety system for a small or medium-caliber multitube automatic firearm, which is characterized in that it comprises a system for immobilizing in rotation of the rotating assembly of the weapon, this system comprising damping means mounted coaxially with the rotating assembly of the weapon, a control device comprising a cylindrical body / 18863 PO7FR95 / 01645
- the axis of rotation of the rotating assembly is materialized by a fixed central shaft which is extended axially by a rod, one end of which is fixed to the central shaft by means of a coupling, then that its other end supports a retaining washer.
- the damping means consist of two stacks of spring rings respectively housed in two telescopic tubes mounted to slide along the axis of rotation of the rotating assembly.
- the first telescopic tube has, at one end, a bottom wall traversed by the central rod, the second telescopic tube which is intended to engage, by one end, in the other open end of the first telescopic tube also has a wall bottom through which the central rod, so that the spring rings of the first stack respectively bear on the two bottom walls of the two tubes, while the spring rings of the second stack respectively bear on the bottom wall of the second telescopic tube and on the locking washer carried by the central rod.
- the means for causing the translational displacement of the cylindrical body which allows the compression of the means shock absorbers comprise a sleeve which surrounds the cylindrical body, means of connection between the sleeve and the cylindrical body, on the one hand, to rotate the sleeve in synchronism with the cylindrical body and, on the other hand, to allow movement in translation of the cylindrical body relative to the sleeve, and a device for stopping the rotation of the sleeve to cause the translational movement of the cylindrical body, this stop device being actuated following the defective firing of an ammunition or of the control external firing stop.
- the means of connection between the element which. allows the compression of the damping means and the sleeve are constituted by rollers located on the periphery of the cylindrical body hereinafter called roller holder and by helical grooves formed in the wall of the sleeve, so that each groove receives a pebble.
- the sleeve rotation stop device comprises a plurality of heels regularly distributed around the periphery of the sleeve and a retractable trigger fixed in rotation relative to the sleeve and movable between a lowered or retracted position and a raised position. where the trigger is located on the circular movement path of the heels to be able to immobilize the rotating sleeve.
- the number of heels of the sleeve is equal to that of the tubes of the weapon, so as to associate a heel with each tube.
- the trigger is constituted by a pivoting flap articulated around an axis supported by a trigger support which is fixed in rotation relative to the sleeve and which is mounted opposite the latter.
- the device for stopping the rotation of the sleeve is actuated in particular following a detection of a failure in the firing of an ammunition.
- This failure can be detected by observing the absence of combustion gas or a recoil movement of the weapon within a determined period of time.
- detection means sensitive to the pressure of the combustion gases we will consider detection means sensitive to the pressure of the combustion gases.
- the passage of the trigger in the lowered and / or raised position is ensured by one of several detection and control means mounted on a support integral in rotation with the rotating assembly of the weapon, the number of these control means being equal to that of the gun tubes to associate a control means to each tube.
- each control means is constituted by a movable element between a retracted position and an active position where it can act on the trigger, this element being movable from one position to the other by borrowing combustion gas. of the ammunition fired by the tube associated with this control means, this mobile element possibly being the piston rod of a jack, the cylinder of which communicates with the tube associated with this mobile element.
- the invention envisages two operating principles according to the position occupied by the retractable trigger in normal operation of the weapon.
- the trigger is in the raised position before firing a munition, which implies a first operating principle according to which the trigger must be retracted after the firing of a ammunition by a tube so that the heel of the sleeve associated with this tube can pass freely in front of the trigger, the latter being then raised after the passage of the heel and before the firing of an ammunition by the following tube.
- a device for lowering and a device for raising the trigger are successively actuated by the control means associated with the tube which has just fired an ammunition.
- the movable element of this control means is in its retracted or rest position before firing the ammunition and, in normal operation of the weapon, passes into its active position when the ammunition is fired by borrowing of combustion gases.
- the devices for lowering and raising the trigger are each constituted by a linkage hingedly connected to the trigger to rotate it in one direction or the other.
- Each of these linkages comprises at least one cam means which is located on the path of movement of the movable element of the control means associated with the tube which fires ammunition, when this control element is in its active position so as to act successively on the cams of the device for lowering and of the device for raising the trigger.
- the movable element of the faulty tube control means In the event of a malfunction during the firing of an ammunition by one of the tubes of the weapon, such as for example a failure which results in a non-firing of the ammunition or a delay in the firing of the ammunition, the movable element of the faulty tube control means remains in its rest position due to the absence of combustion gas or their delay. Under these conditions, the cams of the devices for lowering and raising the trigger are no longer located on the movement path of the movable element and the trigger is therefore held in the raised position, that is to say on the movement path. sleeve heels. The heel associated with the faulty tube will then come up against against the trigger and will cause the sleeve to stop rotating.
- the external command to stop firing during a burst is designed so as to retain in a retracted position the mobile element of the control means associated with one of the barrels of the weapon, when this barrel will fire ammunition.
- the action of the combustion gases on this movable element is suppressed when the munition is fired.
- the trigger is held in its raised position after firing the ammunition and it will cause, as in the case of a malfunction when firing an ammunition, immobilization in rotation of the sleeve and a translational movement of the door -galets.
- the damping means are always controlled as a result of the immobilization in rotation of the sleeve, both in the case of defective firing of an ammunition as in the case of actuation of the external firing stop command.
- the trigger is maintained in the lowered position, which implies a second principle of operation opposite to that previously envisaged.
- the mobile element of the control means associated with each tube of the weapon is on the other hand in its active position before firing the ammunition, and the borrowing of gas is used at the time of the firing of the ammunition to move the element mobile in its retracted position so that it cannot act on the device to raise the trigger.
- the device for raising the trigger also comprises, as in the first embodiment, a cam located on the path of movement of the movable element of the control means when this movable element is in its active position.
- the mobile element of the control means associated with this tube remains in its active position. to be able to act on the device which makes it possible to raise the trigger before the passage of the heel of the sleeve associated with the tube and cause the immobilization in rotation of the sleeve when this heel comes into contact with the trigger.
- the external command to stop firing during a burst for example is designed so as to retain in its active position and not in its retracted position as in the first embodiment, the movable element of the associated control means to one of the tubes, when this tube fires ammunition to be able to act on the device which raises the trigger before the passage of the heel of the sleeve associated with the tube which fires the ammunition and thus cause the immobilization in rotation of the sleeve.
- the external fire stop command in the two embodiments is only intended to act on one of the barrels of the weapon. Under these conditions, when the external fire stop command is actuated during a burst, the weapon can still fire at least a number of ammunition equal to the number of tubes of the weapon before the effective stop of the 'weapon, that is to say that the weapon can not fire piecemeal but this mode of operation is not of major interest for a firearm of the type GATLING.
- This second embodiment has the particular advantage of sparing the wear of all of the mechanisms which are used to lower and raise the trigger. Indeed, for each rotation of the rotating assembly of the weapon and in normal operation, the first embodiment requires lowering and raising the trigger a number of times equal to the number of tubes, while in the second mode embodiment the trigger remains in the retracted position and it is not necessary to request the mechanisms to raise and lower the trigger.
- the kinetic energy of the rotating assembly of the weapon is absorbed by the damping means, which makes it possible to avoid almost instantaneous immobilization liable to create significant mechanical stresses level of the rotating support bearings of the rotating assembly of the weapon.
- FIG. 1 is a schematic longitudinal sectional view of 'a weapon equipped with a firing stop and long-range safety system according to the invention and according to a first embodiment
- - Figure 2 is a sectional view along line II-II of Figure 1
- FIG. 1 is a schematic longitudinal sectional view of 'a weapon equipped with a firing stop and long-range safety system according to the invention and according to a first embodiment
- FIG. 3 is a partial section view of a firing stop and long-range safety system
- FIG. 4 is a partial sectional view to illustrate the principle of control of the firing stop and long-range safety system
- FIG. 5 is a schematic view of the firing stop command
- FIG. 6 and 7 are views similar to that of Figure 4 to illustrate the operation of the firing stop and long-range safety system
- - Figure 8 is a schematic sectional view of a firing stop and long-range safety system according to the invention and according to a second embodiment
- - Figure 9 is an exploded perspective view of the figure 8
- FIG. 10 is a schematic sectional view of the firing stop control
- FIG. 11 to 13 are views in partial section to illustrate the operation of the second embodiment of the firing stop and long-range safety system.
- FIGS. 1 and 2 A small or medium caliber multi-barrel automatic firearm is schematically illustrated in FIGS. 1 and 2.
- This weapon 1 of the GATLING type, comprises a body 3 which rotatably supports a rotating assembly.
- the rotating assembly includes in particular the tubes T of the weapon, which are for example four in number, and a system of loading and firing SC of ammunition M so that the tubes T successively fire an ammunition during each complete rotation of the rotating assembly.
- the body 3 of the weapon 1 is hollow, of elongated shape and extends between a rear end closed by a bottom 5 and an open front end for the free passage of the tubes T.
- Three successive housings 7, 8 and 9 are defined inside this body 3 between its two rear and front ends ( Figure 2).
- the loading and firing system SC comprises a loading block 10 which is rotatably mounted in the housing 7 of the body 3 around a fixed central shaft 12 by means of bearings 14.
- the loading block 10 is of generally cylindrical shape and has, at its periphery, indentations forming troughs 16 for receiving ammunition M.
- the loading and firing system SC also comprises several chambers 20 mounted around the fixed central shaft 12 inside the housing 8 of the body 3.
- chambers 20 are for example four in number, each chamber being associated with a weapon barrel.
- Each chamber 20 is pivotally mounted around a tie rod 22 parallel to the fixed central shaft 12 and integral in rotation with the loading block 10.
- the chambers 20, during the rotation of the loading block 10, are for example guided between two fixed cams separated from each other by a constant distance corresponding to the external diameter of the chambers 20.
- a loading zone where a first chamber 20 is open and offset laterally relative to its associated tube T for loading ammunition therein, - a closed area where a second bedroom
- a munition progressively passes from its open position to its closed position, a firing zone where a third chamber 20 is closed and axially aligned with its associated tube T, and an opening zone where the fourth chamber 20 progressively passes from its closed position to its open position.
- a SE system for ejecting the casings of the fired ammunition is mounted in the housing 9 of the body 3. / 18863 PC17FR95 / 01645
- This SE system comprises for example two star wheels 24, coaxial with the shaft 12 and integral in rotation with the tie rods 22.
- Each percussion device 25 is actuated from a control device 27.
- the housing 9 in which the SE ejection system for the sockets is mounted is closed by a part 30 which supports the tie rods 22 as well as the tubes T which extend beyond this part 30 which is integral in rotation with the loading block 10 ( Figure 1).
- an external motor member M such as a gear motor, has an output shaft which supports a drive pinion 32 which engages a toothing 34 provided at the periphery of the support piece 30 to rotate the rotating assembly of the weapon.
- the rotating assembly 100 of the weapon notably comprises the loading block 10, the tie rods 22 and the associated chambers 20, the tubes T and the SE ejection system of the ammunition casings, together with which a stop system is associated firing and long-range security which has the function of ensuring the immobilization of the rotating assembly 100 of the weapon as a result of the defective firing of an ammunition by one of the tubes T of the weapon or the actuation of an external fire stop command.
- the fixed central shaft 12 which passes through the rotary block 100 of the weapon is extended axially by a central rod 104, one end of which is fixed to said shaft 12 by means a coupling 106.
- the rod 104 supports a support washer 108, retained by a nut 110 screwed onto the rod 104 and traversed by the tubes T of the weapon.
- the coupling 106 comprises a sleeve 114 integral with the rod 104 and mounted to slide on said shaft 12. As visible in FIG.
- two fixed pins 116 are engaged in the body of the sleeve 114, perpendicular to the axis of the latter, so as to project radially into two axial slots 118, diametrically opposite and formed on the peripheral surface of the central shaft 12.
- the two ends of the slots 118 each form a stop which limits the axial movement of the sleeve 114 of the coupling 106 .
- the long-range fire stop and safety system comprises a system 120 for immobilizing the rotating assembly 100 of the weapon in rotation.
- this system 120 notably comprises a damping device constituted by two stacks of spring rings 122a and 122b respectively housed in two telescopic tubes 124a and 124b mounted sliding on the central rod 104.
- the first telescopic tube 124a comprises, at one end, a bottom wall 125 traversed by the central rod 104 and intended to bear against a cylindrical support block 126 interposed between the coupling 106 and the first telescopic tube 124a, this support block 126, will be described later.
- the first tube 124a is open to receive telescopically one end of the second tube 124b.
- the end of the second tube 124b which engages inside the tube 124a also includes a bottom wall 125 crossed by the central rod 104.
- the spring rings 122a housed in the first tube 124a and arranged around the central rod 104 are trapped between the two bottom walls 125 of the two tubes 124a and 124b, while the spring rings 122b housed in the second tube 124b and arranged around the central rod 104 are trapped between the wall of bottom 125 of tube 124b and the support washer 108 provided at the free end of the central rod 104.
- the second tube 124b extends slightly beyond the support washer 108, of which the diameter is slightly less than the internal diameter of the tube 124b, and freely passes through a radial plate 130 crossed by the four tubes T of the weapon and which is integral with the latter.
- the second tube 124b ends in an external radial rim 132 intended to bear against the plate 130 and thus limit the degree of depression of the tube 124b inside the tube 124a.
- a control device for compressing the spring rings 122a and 122b of the damping device comprises the aforementioned cylindrical support block 126 which is interposed between the coupling 106 and the tube 124a.
- This support block 126 is mounted coaxially and integral in rotation with the rotating assembly 100, while being movable in translation along the tubes T of the weapon which pass right through it.
- the control device for compressing the spring rings 122a and 122b also includes means for causing the translational movement of the support block 126 as a result of the defective firing of a munition or the activation of the external stop control shooting, means which will be described below.
- the support block 126 supports at its periphery rollers 135 regularly distributed around this block hereinafter called roller holder 126.
- the rollers 135 are respectively received in helical grooves 137 formed in the cylindrical wall of a sleeve 140.
- This sleeve 140 is attached around the roller holder 126 and is rotatably supported by two spacers 142 and 143 ( Figure 2).
- the rollers 135 transmit the sleeve 140 the rotation movement of the roller holder 126 while allowing the latter to move in translation when the sleeve 140 is immobilized in rotation by a stop device 145.
- the stop device 145 consists of a retractable trigger G capable of cooperating with one of several heels 150 regularly distributed around the sleeve 140.
- the number of heels 150 is equal to that of weapon tubes, so as to associate a heel 150 with each tube T.
- the trigger G is fixed in rotation relative to the rotating assembly 100 of the weapon.
- the trigger G is pivotally mounted on a trigger block or support 152 facing the sleeve 140.
- the trigger G is constituted by a flap of generally rectangular shape, one side of which constitutes a stop for the heels 150 of the sleeve 140.
- the trigger G is pivotally mounted around a fixed axis 154 supported by the trigger support 152 and which extends parallel to the axis of rotation of the rotating assembly 100 materialized by the central shaft 12 and the rod 104.
- the trigger G can take either a lowered or retracted position to lie outside the trajectory of movement of the heels 150 during the rotation of the sleeve 140, or a raised position to lie on this trajectory at a point such that the first heel capable of coming into contact with the trigger G to immobilize the sleeve 140 in rotation, is the one associated with the tube T situated in the firing zone of the weapon's operating cycle, that is to say as long as the chamber is axially aligned with the tube.
- the trigger G is in the raised position before firing an ammunition by one of the tubes T of the weapon. It follows that in normal operation of the weapon, it is necessary to lower trigger G after firing one round and raise it before firing the next round.
- the device 155 for lowering the trigger G is constituted by a pivoting lever 157, one end of which is articulated around a fixed point 158 of the trigger support 152.
- the other end of the lever 157 is articulated on the trigger G in such a way that a pivoting movement of the lever 157 causes a pivoting movement of the trigger G around its axis 154.
- the articulation between the lever 157 and the trigger G is for example constituted by a pin 160 carried by the lever 157 and by an oblong slot 162 formed in the trigger G to receive the pin 160.
- the lever 157 supports a boss 164 which constitutes a contact surface forming a cam used to pivot the lever 157 and lower the trigger G , as will be described later.
- the device 165 for raising the trigger G (FIG. 4) is constituted by a cam 167 integral with the trigger G, that is to say that the cam 167 can pivot simultaneously with the trigger G around the axis of articulation 154.
- This cam 167 defines a bearing surface 169 on which abuts a control means for raising the trigger G, as will be described below.
- the devices 155 and 165 for lowering and raising the trigger G are successively actuated by one of several detection and control means 170.
- These control means 170 are mounted on a support 172 integral in rotation of the rotating assembly 100 of the weapon, and their number is equal to that of the tubes T of the weapon.
- each control means 170 is constituted by a movable element which can take either an active position used for control the devices 155 and 165 to lower and raise the trigger G by acting respectively on the boss 164 of the lever 157 and on the bearing surface 169 of the cam 167, either a neutral or rest position involving no action on the trigger G.
- This movable element is for example constituted by the piston rod 175 of a jack 177, and also forms a means of detection sensitive to the pressure of the combustion gases generated after firing an ammunition.
- a control means 170 is associated with each tube T, that is to say that the cylinder 178 of the jack 177 associated with each tube T is put in communication by a passage 180 with the associated tube T to transmit to the cylinder 178 a part of the combustion gases resulting from the firing of an ammunition (Figure 4).
- a return spring 182 returns the piston rod 175 to its original position after firing the ammunition.
- the long-range fire stop and safety system makes it possible to rotationally lock the sleeve 140 either following a failure in the firing of an ammunition by one of the barrels of the weapon, or following of the voluntary actuation of an external command 185 to stop firing.
- This external firing stop command 185 (FIGS. 3 to 5) is fixed in rotation relative to the rotating assembly 100 and comprises a sector 187 movable in translation which is intended to cooperate with a pawl 189 mounted pivotally around a axis 191 of the rotary support block 172 of the cylinders 177.
- This pawl 189 is positioned on the support block 172 so as to be able to cooperate with the piston rod 175 of the control means 170 associated with one of the tubes T of the armed. At one end, the pawl 189 ends in a hook 192.
- the firing stop sector 187 is controlled by an electromagnet 194.
- each control means 170 passes right through the associated cylinder 178, but the piston rod 175 associated with the pawl 189 further comprises, at one end, a flange 196 intended to cooperate with the hook 192 in order to be able to immobilize the piston rod 175.
- the trigger G is in the raised position before firing an ammunition by any of the tubes T, and the piston rods 175 of the control means 170 of the trigger G are each in their neutral position or retracted position inside their respective cylinders 178.
- This operation will be described taking into account only one tube T of the weapon, the heel 150 of the sleeve 140 associated with this tube T and the control means 170, also associated with this tube T, to modify the positioning. of the trigger G.
- the striker 25 associated with this tube is actuated and the ammunition loaded in this tube T is fired.
- a part of the gases resulting from the firing of the ammunition is conveyed by the passage 180 to the cylinder 178 of the jack 177 associated with the tube T.
- the piston rod 175 housed in the cylinder 178 then moves axially to take an active position, with concomitant compression of its return spring 182.
- the piston rod 175 will first of all come into contact with the boss 164 of the lowering lever 155 to pivot this lever 155, lower the trigger G and allow the heel 150 associated with the tube T to pass freely in front of the trigger G (FIG. 7), then in contact with the bearing surface 169 of the cam 167 to raise the trigger G before firing an ammunition by the following tube.
- the action of the combustion gases is no longer sufficient to keep the piston rod 175 in the active position, and the return spring 182 brings the piston rod back into its neutral or retracted position inside its cylinder 178.
- each tube of the weapon fires an ammunition with, after each shot, retraction of the trigger G to allow the free passage of the associated heel 150 to the tube T which has just fired an ammunition, and repositioning of the trigger in the raised position before the next shot.
- immobilization in rotation of the rotary sleeve 140 causes the actuation of the immobilization device 120 in rotation of the rotating assembly 100 of the weapon, and the stopping of the drive motor M.
- the roller holder 126 and the rotary unit 100 of the weapon continue their rotational movement during which the roller holder 126 also moves in translation along the firing direction of the weapon as a result of the movement of the rollers 135 in the helical grooves 137 of the sleeve 140 immobilized in rotation.
- the roller holder 126 bears on the bottom wall 125 of the telescopic tube 124a, which has the effect of compressing the first stack of spring rings 122a, then the second stack of spring rings 122b which is supported on the fixed plate 130 carried by the central rod 104.
- the compression of the spring rings 122a and 122b has the effect of absorbing the kinetic energy of the rotating assembly 100 of the weapon.
- the return force of the spring rings 122a and 122b becomes greater than the rotational driving force of the roller carrier 126, the latter and the rotating assembly 100 of the weapon are driven in a reverse direction of rotation during from which the roller carrier 126 is also moves in translation in a direction opposite to that which has caused the compression rings of the spring rings 122a and 122b.
- the kinetic energy of the rotating assembly 100 during the reverse rotational movement is absorbed by the second stack of spring rings 122b which extend over a length shorter than that of the first stack of spring rings 122a.
- the second stack has a greater stiffness because the kinetic energy to be absorbed is less important during the reverse rotation movement of the rotating assembly 100.
- the telescopic tubes 124a and 124b initially driven in translation by the roller carrier 126 perform a reverse translation movement.
- the second tube 124b is then immobilized as a result of the support of its external rim 132 against the fixed plate 130, while the first tube 124a comes into contact with the sleeve 114 of the coupling 106 which will be able to move towards the rear by a distance limited by the axial length of the apertures 118 in which the fixed pins 116 are engaged.
- the trigger G when the weapon is at rest, the trigger G is not in the retracted position, so that one of the heels 150 of the rotary sleeve 140 is in abutment against the trigger G. At the start of the firing a burst for example, it is therefore necessary to retract the trigger G of the stop device 145.
- the firing stop and long-range security system is supplemented by a complementary retraction device 200 shown in FIG. 6.
- the complementary retraction device 200 comprises a lever 202 which, towards a front end or end, is extended by a lateral boss 204 of generally triangular shape in which is formed a guide light 206, of bent shape and which receives a fixed pin 208. At its front end, the lever 202 is extends axially by a stop 210 intended to come to cooperate with a crank pin 212 carried by the control cam 167 of the device 165 for lifting the trigger G. The other end of the lever 202 is articulated at 214 on the movable assembly 216 of a control electromagnet 218.
- the lever 202 moves in the direction of the stop device 145 while being guided by the fixed pin 208 which moves in the light 206. This movement is such that the stop 210 of the lever 202 comes to bear on the crank pin 212 of the control cam 167 in order to rotate it to retract the trigger G and thus release the heel 150 of the rotary sleeve 140 which becomes free to rotate.
- the trigger G must be lowered after firing an ammunition by a tube T to allow the free passage of the heel 150 associated with this tube T, then raised before firing an ammunition through the next T tube.
- the trigger G remains in the raised position to form a stop stop during the passage of the heel 150 and thus immobilize in rotation the sleeve 140 and cause the translational movement of the roller carrier 126 for compressing the spring rings 122a and 122b of the damping device.
- a reverse mode of operation is envisaged for the trigger G.
- the trigger G is kept lowered during the normal operation of the weapon and is not raised until afterwards. of a faulty shot of a munition or of the actuation of the external fire stop command to cause, as before, the immobilization in rotation of the sleeve 140.
- the trigger G is constituted by a generally rectangular flap, one side of which forms a stop and the opposite side of which is extended by a rod 250 which materializes the pivot axis of the trigger G , this axis being parallel to the axis of rotation of the rotating assembly 100.
- the trigger G is mounted on a trigger support 152 which faces the rotary sleeve 140 and which is rotationally fixed relative to the rotating assembly 100 of the weapon.
- the trigger G When the trigger G is in its lowered position, it is received in a housing 253 of the support 152 and a spring 254 is mounted in the bottom of this housing 253 to facilitate the raising of the trigger G (FIG. 12).
- a device 255 is provided for lowering and holding the trigger G in a lowered position where it is located outside the circular movement path of the heels 150 of the sleeve 140.
- This device 255 for lowering the trigger G comprises a pivoting lever 257 mounted in a plane perpendicular to the rod 250 of the trigger G, that is to say in a plane perpendicular to the axis of rotation of the rotary assembly 100. More specifically, the lever 257 is mounted to rotate freely towards the end of a shaft 259 and comprises, at one end, a notch 260 intended to cooperate with an operating pin 262 which is carried by a radial arm 264 secured to the rod 250 of the trigger G. This pin 262 is parallel to the rod 250 and eccentric with respect thereto, in order to transform the pivoting movement of the lever 257 into a rotational movement of the rod 250 and thus cause the trigger G to tilt in the retracted position.
- the pivoting movement of the lever 257 is ensured from a member 265 for controlling the rotation of the shaft 259 which supports the lever 257.
- the rotational movement of the shaft 259 is transmitted to the lever 257 by a spring 267 mounted coaxially with the shaft 259. More specifically, one end of the spring 267 is fixed to the shaft 259, while its the other end is supported on the lever 257.
- a rotation of the shaft 259 results in a pivoting movement at the level of the lever 257.
- the control member 265 is for example an electromagnet, the movable assembly 265a of which comes to bear on an eccentric crankpin 269 fixed to the end of the shaft 259 which is opposite to that which cooperates with the lever 257.
- a translational movement of the mobile assembly 265a results in a rotational movement of the shaft 259.
- This shaft 259 is mounted on a support block 270 located near the trigger support 252, these two supports providing between them a space E in which is mounted the lowering device 255 of the trigger G.
- This support block 270 is fixed in rotation relative to the rotating assembly 100 of the weapon. Considering the firing direction of the weapon, the support block 270 is located upstream of the support block 152 of the trigger G.
- the electromagnet 265 is located on the side of the support block 270 which is opposite to the space E, and the shaft 259 extends parallel to the axis of rotation of the rotating assembly 100 of the weapon.
- the lever 257 which makes it possible to lower the trigger G is an element of a linkage TR comprising two other levers 272 and 274 mounted in the extension of the lever 257, that is to say in a plane perpendicular to the axis of rotation of the rotating assembly 100.
- the end of the lever 257 is articulated at one end of the intermediate lever 272 around an axis 276.
- the other end of the lever intermediate 272 is articulated at one end of the lever 274 about an articulation axis 277, while the other end of the lever 274 is articulated at a fixed point around an axis 278.
- This linkage TR constitutes a broken line, the geometry of which can be deformed under conditions which will be explained below in order to pivot the lever 257 in a direction opposite to that printed by the shaft 259.
- This device 280 comprises a pivoting lever 282, one end of which is articulated at a fixed point around an axis 284.
- the other end of the immobilization lever 282 is intended to penetrate into a notch 285 formed in the integral radial arm 264 of the rod 250 of the trigger G (FIG. 11).
- This immobilization lever 282 extends parallel to the linkage TR, and cooperates with a return spring (not shown) to maintain the lever 282 in its position for immobilizing the trigger G.
- the pivoting of this lever is controlled by a pin 287 which extends axially the articulation axis 277 provided between the two levers 272 and 274 of the linkage, as will be described later.
- a device 290 for raising the trigger G is also located in space E and comprises a lever 292, one end of which is articulated at a fixed point around the axis of articulation 284.
- the other end of the lever 292 is intended to cooperate with an operating crank pin 295 for tilting the trigger G.
- This crank pin 295 is supported by a radial arm 296 secured to the rod 250 of the trigger G.
- the crank pin 295 extends parallel to the rod 250 is eccentric and enters a hole 297 provided in the lever 292.
- the lever 292 for raising the trigger G is parallel to the linkage TR and to the immobilizing lever 282, and it has an opening 298 for the free passage of the rod 250 of the trigger G.
- the lever 292 comprises a boss 299 on which each of the control means 170 of the first embodiment can act, namely the piston rod 175 of the jack 177 associated with each tube of the weapon and the position of which is controlled by borrowing gas from the ammunition fired by this tube T.
- the external fire stop control 300 comprises a pivoting sector 302 which is fixed in rotation relative to the rotating assembly 100 of the weapon.
- Sector 302 has a curved surface
- the sector 302a forming a cam, and is mounted articulated on the side of the support block 270 which is opposite the space E where the devices 255 and 290 are mounted to lower and raise the trigger G. More precisely, one end of the sector 302 is articulated on an eccentric crank pin 304 carried by a radial arm 306 secured to the control shaft 259 of the lowering lever 257. The other end of the sector 302 is articulated on an eccentric crank pin 308 carried by a radial arm 310 secured to a shaft 312 rotatably supported by the support block 270 and extending parallel to the control shaft 259.
- the sector 302 can thus pivot in a plane perpendicular to the axis of rotation of the rotating assembly 100, its surface 302a forming a cam facing this rotating assembly.
- the sector 302 can pivot between a rest position and a control position, knowing that a return spring 315 mounted coaxially with the control shaft 259 has one end which bears on the sector 302 so as to automatically return it to the rest position when the electromagnet 265 for controlling the rotation of the tree 259 is not excited.
- the external fire stop control 300 also includes a rotating distributor 318 mounted around one of the tubes T of the weapon and is described below with reference to FIG. 10.
- This distributor 318 has an opening 320 which is intended to form a gas passage between the tube T and the cylinder 178 of the jack 177 associated with this tube to control the displacement of the piston rod 175 mounted in the cylinder 178.
- This distributor 318 plays the role of the pawl 189 of the first mode of achievement.
- the sector 302 is intended to modify the position of the distributor 318 to interrupt the connection between the tube T and the cylinder 178 of the jack 177 when the external control 300 for firing stop is actuated.
- the distributor 318 has a radial heel 322, the free end of which then comes into contact with the cam 300a of the sector 302 to pivot the distributor 318 around the tube T which supports it.
- the trigger G is in the lowered position before firing an ammunition by any of the tubes T, and the piston rod 175 of the jack 177 associated with this tube is in an active position, that is to say that the piston rod 175 during the rotational movement of the tube T is likely to come into contact with the linkage TR of the device 155 for lowering the trigger G and the boss 299 of the lever 292 for raising the trigger G.
- the electromagnet 165 is kept energized so that its mobile assembly 265a is supported on the operating pin 269 of the shaft 259 to force the latter to perform a rotational movement which is transmitted to lever 257 of the TR linkage.
- the notch 260 of the lever 257 thus comes into contact with the operating pin 262 which rotates the rod 250 of the trigger G in a direction which tends to position the trigger G in its lowered position.
- the lever 282 of the device 280 for immobilizing the trigger G is then engaged in the notch 285 of the radial arm 264 which supports the operating pin 262 (FIG. 11).
- the firing stop sector 302 When the electromagnet 265 is actuated, the firing stop sector 302 is in its rest position and the return spring 315 associated with sector 302 is in the banded state.
- the operation will be described taking into account only a single tube T of the weapon, the heel 150 of the sleeve 140 associated with this tube T and the control means 170, also associated with this tube T, to modify the positioning of the trigger G.
- the striker 25 associated with this tube is actuated and the ammunition loaded in this tube is fired.
- Part of the gases resulting from the firing of the ammunition is routed through the opening 320 of the rotary distributor 318 in the cylinder 178 of the jack 177 associated with the tube T.
- the piston rod 175 housed in the cylinder 178 then moves axially to take a rest position, with concomitant compression of its return spring 182. Under these conditions, during the rotational movement of the tube T, the piston rod 175 associated with this tube cannot come into contact with either the linkage TR associated with the lowering device 255 of the trigger G or with the boss 299 of the lifting lever 292 of the trigger G.
- the heel 150 of the sleeve 140 which is associated with the tube T which has just fired an ammunition passes freely in front of the trigger G, just like the heel 150 associated with each tube T of the weapon which fires an ammunition during a complete rotational movement of the rotating assembly 100 of the weapon.
- the piston rod 175 comes into contact with the linkage TR in the vicinity of the articulation axis 277 between the two levers 272 and 274. This contact has the effect of modifying the broken geometric line formed by the linkage TR and forces the lever 257 to pivot so that its notch 260 emerges from the operating pin 262 of the trigger G. Simultaneously, the pin 287 which extends this articulation axis 277 bears on the lever 282 so as to pivot the latter and to release it from the notch 285 of the radial arm 264 secured to the rod 250 of the trigger G. Under these conditions, the trigger G is released from the lowering device 255. Then, the piston rod 175 comes into contact with the boss 299 of the lifting lever 292 which, via the crankpin 295, causes the triggering of the trigger G in its raised position (figure 12).
- Trigger G is raised before the heel 150 of the sleeve 140 which is associated with the tube T passes in front of the trigger G, so that this heel 150 will come into abutment against the trigger G and cause immobilization in rotation sleeve 140.
- the return spring 315 associated with the sector 302 can then relax and cause the sector 302 to pass into its active position. Under these conditions, when the tube T which carries the distributor 318 passes in the vicinity of the sector 302, the heel 322 of the distributor 318 will come into contact with the cam 302a and thus force the distributor 318 to rotate around the tube T, so as to that the opening 320 of the distributor 318 no longer places the tube T and the cylinder 178 of the cylinder 177 associated with this tube T in communication (FIG. 13).
- the piston rod 175 housed in the cylinder 178 therefore remains in its active position, so as to be able to raise the trigger G and immobilize the rotary sleeve 140. This thus results in the same operating conditions as those resulting from the defective ammunition.
- a malfunction in the firing of a munition and the actuation of the external command to stop firing result in a rotation stop of the sleeve rotary 140.
- This rotation stop of the sleeve 140 causes the immobilization device 120 to be actuated in rotation of the rotating assembly 100 of the weapon, in a manner identical to that described in the first embodiment.
- a counter-trigger 198 armed by a spring and supported by the support block 152 of the trigger G. This counter-trigger 198 comes to bear against the heel 150 of the sleeve 140 which precedes the one blocked by the trigger G.
- This device 330 comprises an element 332 movable in translation under the control of a screw 334 for example and which supports the hinge pin 277 of the lever 274.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9414910 | 1994-12-12 | ||
FR9414910A FR2728065A1 (fr) | 1994-12-12 | 1994-12-12 | Systeme d'arret de tir et de securite long feu pour une arme a feu automatique multitubes de petit ou moyen calibre |
PCT/FR1995/001645 WO1996018863A1 (fr) | 1994-12-12 | 1995-12-12 | Systeme d'arret de tir et de securite long feu pour une arme a feu automatique multitubes de petit ou moyen calibre |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0744016A1 true EP0744016A1 (fr) | 1996-11-27 |
EP0744016B1 EP0744016B1 (fr) | 2001-06-27 |
Family
ID=9469696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95942244A Expired - Lifetime EP0744016B1 (fr) | 1994-12-12 | 1995-12-12 | Systeme d'arret de tir et de securite long feu pour une arme a feu automatique multitubes de petit ou moyen calibre |
Country Status (5)
Country | Link |
---|---|
US (1) | US5675105A (fr) |
EP (1) | EP0744016B1 (fr) |
DE (1) | DE69521494D1 (fr) |
FR (1) | FR2728065A1 (fr) |
WO (1) | WO1996018863A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009007115B3 (de) * | 2009-02-02 | 2010-02-11 | Rheinmetall Waffe Munition Gmbh | Schnellstop für eine Maschinenkanone |
DE102014108466A1 (de) * | 2014-06-16 | 2015-12-17 | Rheinmetall Waffe Munition Gmbh | Elektronische Schnellstopp-Deaktivierung |
DE102014108465A1 (de) * | 2014-06-16 | 2015-12-17 | Rheinmetall Waffe Munition Gmbh | Schnellstopp |
DE102015008794B4 (de) * | 2015-07-10 | 2021-02-25 | Rheinmetall Waffe Munition Gmbh | Waffenrohrlagerung |
US10871336B1 (en) | 2018-10-30 | 2020-12-22 | Travis Johnston | Revolving battery machine gun with electronically controlled drive motors |
CN110645830B (zh) * | 2019-10-17 | 2021-11-09 | 扬州工业职业技术学院 | 一种凸轮式转管武器旋转驱动装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4193335A (en) * | 1977-03-17 | 1980-03-18 | General Electric Company | Gun misfire control |
US4274325A (en) * | 1979-07-17 | 1981-06-23 | General Electric Company | Safing mechanism for high rate of fire revolving battery gun |
US4924753A (en) * | 1984-12-03 | 1990-05-15 | General Electric Company | Self powered drive system for a Gatling type gun |
DE3627355C1 (de) * | 1986-08-16 | 1992-04-09 | Rheinmetall Gmbh | Schnell-Stopp-Einrichtung fuer eine Maschinenwaffe mit Fremdantrieb |
DE3627362C1 (de) * | 1986-08-16 | 1992-04-09 | Rheinmetall Gmbh | Schnell-Stopp-Einrichtung fuer eine Maschinenwaffe mit Fremdantrieb |
DE3762374D1 (de) * | 1987-01-16 | 1990-05-23 | Oerlikon Buehrle Ag | Sicherheitsvorrichtung an einem fremdangetriebenen geschuetz. |
CH675767A5 (en) * | 1987-12-23 | 1990-10-31 | Oerlikon Buehrle Ag | Automatic firearm with externally driven breech block - has separate components stopping breech block movement and locking, and round feed drive on retarded ignition |
-
1994
- 1994-12-12 FR FR9414910A patent/FR2728065A1/fr active Granted
-
1995
- 1995-12-12 US US08/676,404 patent/US5675105A/en not_active Expired - Lifetime
- 1995-12-12 DE DE69521494T patent/DE69521494D1/de not_active Expired - Lifetime
- 1995-12-12 WO PCT/FR1995/001645 patent/WO1996018863A1/fr active IP Right Grant
- 1995-12-12 EP EP95942244A patent/EP0744016B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9618863A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5675105A (en) | 1997-10-07 |
FR2728065A1 (fr) | 1996-06-14 |
WO1996018863A1 (fr) | 1996-06-20 |
EP0744016B1 (fr) | 2001-06-27 |
DE69521494D1 (de) | 2001-08-02 |
FR2728065B1 (fr) | 1997-02-28 |
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