DEW0002880MA - Sealing between barrel and compressed air cylinders of air guns - Google Patents

Description

Frite Waith he, Niederstotslagec (Sürtt.), Garteastrasse.

Luftdractwaffe _s

With air guns mma since the running ends are sealed off from i. a recovery air aliases, so that no air can escape at the 4-way stoppage point, but rather air can escape through one Channel in the front wall of the bridge gaps eyIi od e re flowing * Laft enters the barrel bore without loss «The seal is so far made by a leather strap that runs in a Biagnut la or in the front wall of the compressed air cylinder pressed in »The pressed leather is only very weakly elastic and also due to the inherently low elasticity the constant Susasimenstaachen when closing the Leufas subsides, the transition point leaks, and a part the air escapes before it gets into the barrel bore. Replacing the pressed-in leather ring a is difficult, because it is difficult to remove and a new Hing voa user cannot be pressed in by himself.

According to the invention, instead of a leather ring, a bing made of elastically stretchable material, for example solid Cuineii, Terwenöet, and the ring groove in which it is inserted tflrd, is from the outside in a little bit qach the middle m beveled, so that he is as a result of his Bigens tension looks into the groove, but protrudes slightly over the face and so on the opposite surface is printed when the barrel is closed. The diameter of the Hing is a little smaller than the Kutdurciaaeseer,

so that there is a slight pretensioning of the door hand with »lens sets.

The cross-section of the Iat is somewhat advantageous

larger than the cross-section of the victory. This gives it the opportunity to evade within the actual area, mm the pressure of the opposing surface on it "irks and it is aasaaaen compressed.

The biagnat can be formed in various ways . If it is located within the abaudiohtendee surface, it consists of a recess which is closed on the slope on the slope of the slope. B & f they inäet to m band of the surface to be sealed, κ to as the sands of the Current, and is the! "Uafaeat on mn a running head, it will τοη made it an oblique Absats © m Running and the inner surface of the drive head. The groove can also be formed from a curved groove on the band of the surface to be sealed , which is closed to the outside by the Laafkopf »

On the drawing several execution examples of the seal according to the invention are shown «-

fig. 1 shows the rear end of a barrel and then the front part of the pneumatic cylinder.

Fig. 2-7 shows a rear Icde of the barrel in longitudinal section and in frontal view.

The barrel 1 is sweakable do a joint and sits on its rear face touches the tordere Isai 5 of the air pressure t2jlindera 4. In the front end 3 of the air cylinder is the channel 5 through which the compressed air flows into the barrel bore 6 » Vit ge dashed Lines is the barrel in Fig. 1 indicated in the closed position. In this Ausfuhrungafor "is located in the end wall 3 of the Bruck air cylinder 4, an obliquely Terlaufende annular groove 7, in which the elastically extensible King 8 is inserted * The But extends in an oblique Hichtung from the outside inwards towards the center au so that the slt slightly bias pickled Bing 8 moves into the Iut. Because the Bing cross section is round and the oblique groove

Claims (8)

is rectangular, the ring box at a »Bruek toq outside eleventh table eats the empty Kckea of the lsi. In the embodiment according to FIG. 2 and 3 the rebate groove is loaded within the sealing surface at the end of the barrel 1. Otherwise, this shape corresponds to that according to FIG. 3: In the embodiment according to FIGS formed by a conical Abeate 8a as band of the barrel end and the inner surface of a Leufkopfes 9, which is sucked over the barrel end. This embodiment is advantageous for air pressure weapons in which a barrel head is lost. In the embodiment according to FIGS. 4 and 7, the Mfignut 7 is formed in accordance with the embodiment according to FIGS. In this case, however, it consists of a curved groove, the curvature of which is deepened towards the longitudinal center of the lsufee, so that the inserted Hing is drawn into the depression. The cross-section of the ring is ettae smaller than the cowl, so that an elastic change in shape can take place in the case of a draft on the file protruding inwards over the face. A B a ^ iT? 1) Sealing of the zilachen barrel and air cylinder of air guns, characterized in that in a © Bingnut C?) Of the one sealing surface a hinge (8) made of elastically stretchable © material, such as a solid Gnaaai or plastic sit gistter surface is inserted. 2) Seal according to spoke 1, characterized in that the bat (7) obliquely after the Tdngmitte eu is directed into the sealing surface in such a way that the hanging (8) inserted with pretensioning in the int (7) looks into the hat and protrudes a little over the face area. 3) -sealing according to laeprach 1 and 2, thereby core leaning that the ial not Tolletiudig ioa the tiage · lagea Bisg is filled. 4) Sealing according to spoke 1 and 2, de by GÄesB ~ Stkboet _s that the Querechaitt the Bifigaet tekig aod the Qaaraakoitt des Iitges ruad. 5) Sealing oach claim 1 and 2, characterized in that » the clear direction of the Iut is larger than the opening cross-section. 6) Sealing schematically in claim I and 2, characterized ge ~ _f denotes that the aehrägg riehtet # © Hat sitting (?) In the soie of the barrel Cl). 7) seal according to claim 1 and 2, characterized in that the Sut CT) by a cut back. Paragraph (8) m the edge of the barrel C1) and the inner surface of a barrel head (9) placed around the barrel end. 8) sealing oach. AuB ^ rucJa 1 uad _f 2 characterized in that the hat (7) of (95 run (13 and IEA head around the barrel down run is dureh a Ibsetz (8) m with recessed curved surface formed hand *.