DE117127C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

M 117127 CLASS 72 c.

The present invention relates to the piecer protected by patent 106945 for guns, and the purpose of the device used in the same, by which the premature - taking place only as a result of friction - entrainment of a rack should be prevented by the preceding one, by an. inevitably acting and therefore it is essential to replace reliable arrangement.

The intended purpose is achieved according to the invention in that each such toothed rack of the piecer, whose premature removal is to be prevented, "in the pushed-in state supported by a pawl arranged on it against a fixed abutment is, and that the disengagement of this pawl at the end of the outward movement of the. preceding rack inevitably takes place.

In the drawing, a piecing device is shown in FIGS. 1 to 4 as an exemplary embodiment of the invention illustrates in which the engagement between the pawl and her Abutment is secured by a spring, while one is attached to the preceding rack attached projection at the end of the outward movement of this rack the pawl moves out.

Fig. Ι shows the piecer, seen from above, in the inserted state;

Fig. 2 is a similar view of the ripper in the extended condition; Fig. 3 illustrates the arrangement of the pawls on a larger scale, assuming is that the first rack is fully extended;

FIG. 4 shows a vertical longitudinal section along the line 4-4 in FIG. 3.

The overall arrangement of the piecer is the same as that described in patent 106945 agree except for the device explained below, which is used to replace the there for Holding the racks applied resilient latch is determined · is.

On the front part of the racks jB ² B ³ B *, namely alternately on the left and right side cheeks, pawls Z) ² D ³ D *, which have the shape of two-armed levers, can be rotated by ^{means of pins L 2} L ³ L ⁴ stored. When all the racks are inserted into the racks A , the front arms of the pawls D ² D ³ D ^{4 are supported} against the abutments M ³ M ⁱ M ⁵ , of which M ^s and Af ⁴ on the racks B ^s and B ⁴ are arranged, while M ⁵ is attached to the housing A. Springs H ' ¹ H ³ H ⁱ strive to keep the pawls D ² D ³ D ⁱ in engagement with the abutments M ³ M ^ M ^h. As long as this engagement takes place, the rear arms of the pawls Z) ² D ³ Z) ⁴ lie in the path of forward beveled lugs N ¹ N ^ N ³ , which are attached to the rear ends of the racks B ¹ B ¹¹ B ³ .

Claims (3)

In the inserted state of the attachment (Fig. I) the pawls Z> ² D ³ Z> ^{4 are} in engagement with the associated abutments M ' ⁶ M * M ⁵ . As a result, the rack B ² cannot be moved forward against B ³ , this cannot be moved against B * and the latter cannot be moved forward against the housing A. Accordingly, all of the racks with the exception of B ^{1 are} coupled to the housing A and are therefore prevented from moving forward. If the rack -B ¹ is now pushed out, at the end of its movement the stop N ¹ hits the rear arm of the pawl ΰ ² , pushes it to the side against the pressure of the spring H ' ² and thus lifts the front arm out of the abutment Ai ³ out (see Z) ² in Fig. 3). From this moment on, the rack B ^{2 is} no longer locked and is now moved outwards in the manner explained in patent 106945, while the racks -B ³ and B ¹ still remain locked. The triggering of the latter takes place in the same way as that of the rack B ² when the stops N ² respectively. 2V ³ against the pawls D ³ respectively. D ⁴ hit, so that finally the piecing can move into the fully extended position (see Fig. 2). W ⁷ reinserted ird piecing, so the pawls fall under the pressure of their springs in the order D ⁴ D ³ D ^'2 again behind their abutment as soon as the insertion of the racks B ³ B begins ² B ¹ in the housing A, ie a backward movement of the lugs N ³ N ² N ¹ with respect to the blades D ⁴ D ³ D ² occurs. The means which bring about the engagement and the release of the pawls can be modified in many ways without thereby changing the essence of the invention. For example, if the approaches N ' ² N ³ iV ⁴ are omitted, the pawl spring can be arranged in such a way that it strives to lift the pawl out of its abutment; it is then the engagement between the pawl and the abutment by the preceding rack ffesichert by this over almost the entire length of its stroke, z. B. with its side wall, rests against the front correspondingly shaped arm of the latch located in engagement with the abutment. In this case, a detent is attached to the rear end of the preceding toothed rack which, at the end of the outward movement of this toothed rack, faces the pawl so that it can emerge from its abutment and enter the detent under the pressure of its spring. The pawl spring can even be completely eliminated if the preceding rack is placed on the front arm of the pawl in the manner just described, and the approach JV ² (or N ³ or 2V ⁴ ) is placed on the rear arm of the pawl at the moment works where the front ratchet arm meets the catch of the preceding rack. The omission of the pawl spring can also be made possible in such a way that the pawl, with a pin arranged on it, engages in a groove cut into the preceding toothed rack, which is straight for most of its length and parallel to the longitudinal axis of the attachment, in its end but the parts lying on the rack runs obliquely. As long as the pin of the pawl slides in the first-mentioned part of the groove, the pawl is in engagement with its abutment. If, on the other hand, the pin enters the inclined part of the groove, the pawl is lifted out of its abutment. As is readily apparent, the arrangement of the abutments explained above can also be replaced by one in which all abutments on the housing are appropriate. Patent claims: ι. An embodiment of the rammer for guns according to patent 106945, thereby marked to prevent the premature removal of a rack by the previous one in the pushed-in state by a pawl arranged on it against a fixed one Abutment is supported, and that the disengagement of this pawl at the end of the outward movement of the previous one Rack inevitably takes place. 2. An embodiment of the ripper according to claim 1, wherein the engagement between the pawl and its abutment is secured by a spring, while one attached to the preceding rack Approach at the end of the outward movement of this rack disengages the pawl. 3. An embodiment of the piecer according to claim 1 BEZW. 2, in which the abutment for the pawls of the individual racks on the respective following racks are attached, while the abutment for the last rack is attached to the rack housing itself. 1 sheet of drawings.