UA81294C2 - Bodrov-kostiuchenko's mechanism for arbalest loading - Google Patents

Abstract

The invention relates to small-arms, in particular to arbalests. A mechanism for arbalest loading of Bodrov- Kostiuchenko system comprises a magazine with arrows arranged without front wall and lever that is hinged to its side surface in such way that it interacts by short arm with lower arrow in magazine with fixation of its position, and top the upper edge of magazine flat spring is attached, with direction of deformation in vertical plane. The mechanism for loading can be used in arbalests with movable trigger mechanism.

Description

Description of the invention

The invention relates to mechanical small arms, in particular to crossbows. It can be used in 2 crossbows of different types.

The closest technical solution to the proposed design, in terms of essential features and the problem to be solved, is |application KO Mo94014641 MPK RG4185/00, BIPM Moz5, 1995) for a crossbow loading mechanism, which includes a vertical magazine with arrows and a pressure lever, short the arm of which is spring-loaded and the end of the long arm of the lever interacts with the upper arrow and through it with all the arrows in the magazine, tending to push them 70 down on the guide bed of the stationary trigger crossbow. The store is filled with arrows through the open upper end when the pressure lever is raised to the upper limit of the shoulder. The length of the arrows of the crossbow with the proposed mechanism should exceed the tension stroke of the bowstring, while after the shot, the next lower arrow falls with the main part on the bowstring, without interfering with its tension, and with the tail part - on the guide bed. When moving the middle of the bowstring in the process of tensioning, the shafts of the arrows rise, and the main 72 part falls on the guide bed. In the position of catching the bowstring with the forks of the trigger mechanism, the bowstring comes out of contact with the arrow, and it completely rests on the guide bed so that its axis coincides with the trajectory of the bowstring movement during the shot.

The disadvantage of a magazine with filling through an open upper end is that when using arrows with a tip and tail, the width of which significantly exceeds the diameter of the rod, the side walls of the magazine must have a complex profile, the opposite of the outer contour of the arrow, which complicates the design of the magazine.

A more significant drawback is the limited use. Such a store cannot be used in crossbows with a movable trigger mechanism due to the lack of a guide - when moving the trigger mechanism to the string to capture it, the shafts of the arrows stick into the means of moving the trigger mechanism inside the crossbow and block it. with

The problem that the invention is aimed at solving is the simplification of the design, the elimination of the limitation of the use of (Ge) relative to the types of crossbows.

The task is solved by the fact that in the charging mechanism of the crossbow of the system of V.V. Bodrova-VI

A box that includes a store with arrows and a lever, according to the invention, the store is made without a front side surface, the lever is hinged to its side surface and interacts with a short shoulder with the lower With an arrow in the store in such a way as to fix its position, and to the upper end of the store fixed flat Ge"! spring with the direction of deformation in the vertical plane.

The stated essence of the invention is explained by the drawings, which show: p

Fig. 1 - a schematic vertical section of the magazine "-- a) in the position before the shot; 3o r) in the position after the shot. co

Fig. 2 - section along A-A.

Box 1 (Fig. 1) of the magazine is rigidly connected to the body 2 of the crossbow, inside which, with the possibility of reciprocating movement, there is a trigger mechanism З with a fork 4 that grabs, holds and lowers the bowstring 5. It is rigidly fixed to the upper end of the box 1 flat spring 6, the free end of which Z 740 affects the arrows 7 without a tail. On the side surface of the box 1, a spring-loaded lever 8 s is installed (Fig. 2), the short arm of which through a corresponding groove in the wall of the box 1 enters the internal cavity and serves

With" stopper for the lower boom 7 in the store. The diameter of the shafts of the arrows 7 is less than the inner width of the box 1 of the magazine by 0.2-0.5 mm, so the front lower part Ta (fig. 1B5) of the side walls of the box 1 serves as a guide for the arrow during the shot.

In the initial position (fig. 1a), the magazine is filled with arrows, the crossbow is loaded - the trigger mechanism Z is in the rearmost position, the string 5 is stretched and held by the fork 4, the shaft of the arrow 7 lies - on the trigger mechanism Z (fig. 2) between two catches forks 4, the tip of the arrow 7 rests on the front part of the body 2 of the crossbow (Fig. 1), the arrow is kept from lateral displacement by surfaces Ta (Fig. 1 B). The lower arrow 7 in the store is held by the stopper of the lever 8. (Te) 20 The loading mechanism works in the following way.

When shot, bowstring 5 moves to the extreme front position (Fig. 15). Trigger mechanism Z

T" is moved to the extreme front position, in which the fork 4 captures the middle part of the chord 5, then it is returned to the original position. After that, the long arm of the lever 8 is briefly pressed to the stop. At the same time, the short arm of the lever 8 comes out of the cavity of the magazine box 1, under the action of its own weight and pressure of the spring 6 29, the arrow 7 moves down to the stop of the lower arrow in the trigger mechanism C and the crossbow body 2. Lever 8

GF) is released and its short arm fixes the position of the new lower arrow in the magazine. The crossbow is brought to the starting position and is ready for the next shot. o To fill the magazine, arrows are inserted with the tail part up to the stop into the magazine through the slot in its front part. As the magazine is filled with arrows, the spring 6 bends, flipping the next upper arrow 60 to the lower one.

The proposed magazine can be used in crossbows with a fixed and movable trigger, the process of filling it with arrows is simpler, the magazine box is extremely easy to manufacture.

Thus, the proposed mechanism has a significantly simpler design and is not limited by the types of crossbows. Its disadvantage compared to the prototype is the limitation of the type of arrows used. A crossbow with such a loading mechanism can shoot only arrows without tail feathers, the flight of which is stabilized by rotation around the axis.

One of the design variants of such arrows has been developed, manufactured and successfully tested.

Claims (1)

2 Formula of the invention A crossbow loading mechanism that includes a magazine with arrows and a lever, which is characterized by the fact that the magazine is made without a front wall, the lever is hinged to its side surface and interacts with a short shoulder with the lower arrow in the magazine in such a way as to fix it position, and a flat spring with the direction of deformation in the vertical plane is attached to the upper end of the magazine. c schi 6) « (22) c «- d) - with . and? (ee) - ime) se) s» ime) 60 b5