DE209524C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- ΛΙ 209524 - CLASS 721 GROUP

FRIED-KRUPPAKT-GES-INESSEN ₅ RuHr.

The invention relates to such percussion fuses that are armed with a The fuse retarding the detonator is equipped with known detonators -this Art will be the arming of the detonator delayed by the fact that the safety device itself , from its transport position to the position in which there is the moving part of the detonator releases under the action of centrifugal force

ίο moved on a long track that ran between the moving and one fixed part of the detonator. Since now during the time in which the security organ moves, forces (e.g. the reaction of the impact occurring when firing) act which The security organ can seek to cause a movement of the part to be secured clamped between the moving and the fixed parts and thereby the Arming of the detonator can be prevented. The invention now aims to provide an impact fuse with a fuse which delays the activation of the detonator and which does not have the disadvantage mentioned. According to the invention, this purpose is achieved in that the detonator has a movable part that automatically locks it Organ that controls the forces that occur when the projectile is fired and when it is in flight are unable to move out, and one that is intended to move this locking device out Has organ that in the transport position of the detonator against the disengagement of the Locking member is secured towards movement, is in motion when firing sets and from its transport position to the position in which it disengages the locking device, has come a long way.

An exemplary embodiment of the subject matter of the invention is illustrated in the drawing, namely shows

Fig. Ι an axial longitudinal section of the secured Detonator,

Fig. 2 shows the section according to 2-2 of Fig. 1, seen from above,

3 shows the unlocked detonator in a representation corresponding to FIG. 2,

Fig. 4 shows a detail and
FIG. 5 shows the bottom view associated with FIG. 4.

In the: bore a ^{1 of} the detonator body A , the pill bolt B carrying the squib C is displaceable, the shape of which can be seen in particular from FIG. The lateral surface of the pill bolt B is formed in its central part by a conical ^{surface δ 1 , which merges into cylindrical surfaces δ 2} , δ ³ (FIG. 4) after the end faces of the pill bolt. The shape of the hole a ^{1 of} the detonator body A corresponds to that of the pill bolt B. The hole a ^x is closed by the detonator head D , which carries the detonator pin d ^1. An ignition channel δ ⁴ , the axis of which coincides with the igniter axis, leads from the squib C to a channel α ² which is arranged in the bottom of the igniter body A and which is passed through a grain of powder E.

In the transport state of the detonator, the pill bolt B is secured against propulsion in the detonator body A by a two-armed pawl F, F ¹ , which is pivotably mounted in a recess a ^{3 of} the detonator body A on a bolt / " ³ directed parallel to the fuse axis and with its arm F. ¹ engages in a detent δ ^{5 (FIGS. 2} , 3 and 4) of the pill bolt. A spring f 2 searches for the latch? F, F ¹ with the

Claims (3)

To keep latch δ ^{5 of} the pill bolt in engagement. The pawl has such a shape that no part of it protrudes into the path of the pill bolt B in the disengaged state (FIG. 3). The weight of the pawl is distributed in relation to the pivot axis of the pawl in such a way that the centrifugal force occurring during the rotation of the projectile cannot disengage the pawl. The lower part of the Zündkanales.δ ⁴ is widened and, when the detonator is in transport, receives a ball G which is held in its position by a leaf spring H of low elasticity. This ball has the task of disengaging the pawl F ₁ F ¹ after the shot for the purpose of releasing the pill bolt B from the ^{detent δ 6} · of the pill bolt. For this purpose, a helically rising spiral groove δ ^{β is} cut into the lateral surface δ ^{1 of} the pill bolt B , which at its lower end is connected to the part of the ignition channel δ ^{4 that receives the ball G through a channel δ 7} of the pill bolt directed radially to the fuse axis . The wall δ ⁸ (Fig. 1) of the channel δ ⁷ rises in the direction of flight of the projectile to the outside. The upper end of the spiral groove δ ⁶ opens opposite the beveled free end of the arm F ^{x of} the pawl F, F *. The channel δ ⁷ and the spiral groove δ ⁶ have such a cross section that the ball G can pass through them unhindered. Opposite the upper opening point of the groove δ ⁶ , an inclined bore a ^{5 is} provided in the igniter body A , which is closed by a screw plug a ⁶ and so. is dimensioned so that the ball G is able to enter it completely after leaving the spiral groove δ ^β. The outer end of the leaf spring H is reinforced and. engages in a parallel to the fuse axis directed groove α ^{4 of} the fuse body A , so that the pill bolt B is secured against rotation. 3 In the transport position, the parts of the detonator assume the position shown in FIGS. 1 and 2, as mentioned. Here, the pill bolt B is secured by the arm F ^{1 of} the pawl F, F ¹ , which is under spring action, while the ball G is held in the widening of the ignition channel δ ⁴ by the leaf spring H. When firing, the ball G bends the leaf spring H under the effect of inertia and enters the channel δ ⁷ . Then the ball G rolls under the effect of the centrifugal force caused by the rotation of the bullet along the wall b ^{8 of} the channel b ⁷ and in the groove δ ^β and finally hits the arm F as it emerges from the mouth of the groove δ ^{6 1 of} the pawl F ₁ F ¹ . The pawl F, F ¹ is swung out against the action of its spring / ² until the arm F ¹ comes to rest on the detonator body A. The ball then runs past the cutting edge of the arm F ^{1 of} the pawl F, F ¹ and rests on the screw plug a ^{6 that} closes the bore α ^{5 of} the detonator body A (FIG. 3). When the ball has reached this position, the pawl F, F ¹ can swing back under the action of its spring / ² by a small amount into the position shown in FIG. In this position it is held by the ball G and in turn locks the ball G in that. it presses the ball G against the wall α ⁷ (FIG. 3) of the inclined bore α ^5. In this position of the parts, the pawl F, F ^{1 is} no longer in engagement with the detent δ ^{5 of} the pill bolt B. The pill bolt B is thus unlocked and the detonator is sharp. Pat ent-A ν s ι * κ ü c ü μ: ι. Impact detonator with a locking mechanism which delays the activation of the detonator, characterized by an organ (F, F ¹ ) which automatically blocks the movable part (B) of the detonator, which is unable to release the forces that occur when the projectile is fired or in flight, and a Disengagement of this Sperror'ganes certain organ (G), which is secured in the transport position of the detonator against the movement directed towards the disengagement of the blocking element, sets in motion when firing and from its transport position to the position in which it is the blocking element (F, F ¹ ) disengages, has to travel a long way (b ⁶ , b ¹ ) : 2. Impact detonator according to claim 1, characterized in that the movable part (B) of the detonator is secured by a pawl (F, F ¹ J , which is guided by a screwed groove (b ^e ) under the action of centrifugal force Ball (G) can be disengaged. 3. Impact fuse according to claim 2, characterized in that the ball (G ) provided for the disengagement of the safety pawl (F ₁ F ¹ ) is able to enter a detent (a ^s ) after the pawl has disengaged and in this position the pawl against re-engagement secures and is locked in its position even by the latch. 1 sheet of drawings.