RU1784827C - Air harpoon gun underwater hunting - Google Patents

Abstract

The invention relates to equipment for spearfishing, in particular to a pneumatic harpoon gun. The gun contains a barrel made in the form of a flexible sealed sleeve, one end of which is mounted on a cylindrical receiver, and the other on a piston. A harpoon shank is placed in the piston. The shotgun is equipped with a trigger mechanism, a mechanism to reduce muscle effort and a friction-type linkage mechanism for adjusting range. 2 C.p. f-ly, 3 ill.

Description

The invention relates to equipment for spearfishing, in particular to a pneumatic spear gun.

In technical essence, the technical solution closest to the invention is a harpoon-throwing device, in which, to increase the range of a harpoon's throwing without increasing the length, the gun is mounted in the receiver movably and, when fired, moves forward by an amount of free travel at a speed greater than the speed of the harpoon the trunk.

The disadvantage of such a device lies in its complexity and laboriousness of manufacturing, the presence of a large number of friction surfaces, as a result of which a significant part of the work expended during charging is spent on overcoming friction forces, which reduces the efficiency of the device.

Another disadvantage is that the charging force is always greater than the force

acting on the harpoon when fired, and depending on the pressure in the receiver from 15 to 50 kg. Higher loading forces result in severe fatigue of the underwater hunter.

The disadvantage is that changing the range requires quite complex movements of the underwater shooter, which take several seconds. but the object of the hunt is mobile and the underwater hunter simply does not have time to use the range switch, as a result, most shots are not optimal in range.

The aim of the invention is to increase the efficiency of the device by eliminating friction between the barrel and the receiver, the barrel and the piston, as well as reducing muscle stress during charging and reducing the time required to change the range.

This goal is achieved in that in a pneumatic harpoon gun for

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water hunting, containing a movable barrel, a piston, a receiver, a handle and a trigger mechanism, the barrel is made in the form of a flexible airtight sleeve, one end mounted on the receiver, and the other on the piston.

To reduce muscle effort when loading the gun, it is equipped with a drive handle with a body, a drum, a tape and a spring-loaded sleeve, the tape being wound on the drum, the free end of the tape fastened to the piston, and the spring-loaded sleeve made with a slot for the drive handle and placed on one axis with a drum with the ability to interact with it through grooves and protrusions,

In order to reduce the time required to change the range, it is equipped with a lever, a leaf spring and a rod, the rod connecting the lever with the spring and the spring in one end in contact with the flexible tape connecting the piston to the drum,

On Fig, 1 shows a section of the front of the gun; Fig. 2 is a sectional view of the rear of the shotgun in the charged state (the line dropping device as well as the fuse are not shown); in Fig.Z - section aa in Fig.2.

The gun contains a harpoon 1 located in the barrel 2. The barrel is fastened at one end to a pipe 3, the internal cavity of which together with the cavity in the handle 4 forms a receiver. The barrel is bonded to the piston 5 at the other end. The clutch 6 protects the barrel from damage.

The trigger includes a housing

7. in which the grips are placed on the axles

8.contacting with the sleeve 9. The grips 8 and the sleeve 9 are spring-loaded with springs 10 and 11, respectively.

The spring 11 abuts against the cap 12. The sleeve 9 through the fork 13, the lever 14 and the rod 15 is connected with the trigger 16.

The entire trigger is in adapter 17.

The mechanism for reducing muscular effort when loading the gun contains a tape 18 fixed at one end to the piston 5, and the other to the drum 19. The drum is able to interact with the natural handle 20. To do this, it is mounted on the axis 21. And in the case 22 is coaxial with the drum located a hermetically sealed etching 23 interacting with the drum by means of protrusions, moreover, a slot is made in the sleeve 23 with which the drive handle 20 contacts.

The drive handle 20 is attached to the housing 22 through the clamp 24 and connected to it by an axis,

The spring 25 is located in the housing 22 and serves to compensate for the axial force arising when filling the receiver with compressed air.

Range controller contains

tape 18, interacting with the stop 26 by means of a spring 27, rod 28 and lever 29.

The operation of the device is as follows.

When loading the gun, the harpoon 1 is inserted into the barrel 2 all the way into the piston 5, while the folds formed on the flexible barrel under the influence of excessive air pressure in the receiver compress the harpoon and hold it in the barrel.

Lever 29 press the lever 29 to the handle 4, while the rod 28 pulls the spring 27, which previously pressed

tape 18 to the stop 26,

With your right hand, release the handle 20 from the clamp (not shown), turn it on the axis connecting it to the clamp 24, and insert the sleeves 23 into the slot. Then press

the sleeve 23 with the handle 20, wherein the pins of the sleeve 23 enter the holes in the drum 19.

When the handle 20 rotates, the tape 18 is wound around the drum 19, so there is no piston 15 and barrel 2 behind it, which, crimping the harpoon

1, w is pulled into the pipe 3

The piston 5 presses on the rear protrusions of the grippers 8, which, turning on the axes, the front protrusions go into the groove in the piston 5.

The sleeve 9, under the action of the spring 11, moves forward and enters the ledges made in the grippers 8, fixing them in the cocked state.

With further rotation of the handle 20

the piston 5 abuts against the front protrusions of the grippers 8 and stops C% ol with the harpoon fixed in the combat position along the axis of the receiver. s

Then the handle 20 is disengaged

with the sleeve 23, rotate around the axis and fix in the clamp mounted on the handle 4,

In addition to the main function, the handle 20, fixed in the clip, serves as an aiming strip in the aiming process,

The shotgun is ready for firing. A lin connecting the harpoon to the body of the gun is wound on the ejector, and the trigger

16 is fused,

To fire a shot, the trigger is removed from the fuse. Use your finger to pull the TV trigger. In this case, the line is delineated, the rod 15 through

the lever 14 acts on the fork 13, which

moves the sleeve 9. The sleeve 9 releases the grippers 8, the latter releases the piston 5 with the barrel 2. which, turning out under the action of compressed air in the receiver, moves in the pipe 3 and pushes the harpoon 1 to the target.

In order to achieve maximum range, the gun 29 is pressed against the handle 4 with a brush until it stops, while contact between the spring 27, the tape 18 and the stop 26 is eliminated. It is enough to loosen the hand pressure on the lever 29 and the spring 27 starts to press the tape 18 against the stop 26. thereby reducing range.

When the lever 29 is released, the range is minimal and, depending on the force of the spring 27 and the air pressure in the receiver, may be zero.

To fill the gun with compressed air, turn off the plug 30, screw in the pump and fill through the check valve 31.

The technical and economic advantages of the proposed gun are higher efficiency due to the elimination of friction between the barrel and the receiver moving during the shot, as well as between the barrel and the piston, less labor-intensive manufacturing, less fatigue of the underwater hunter during the operation of the gun due to the use of a mechanism for decrease in muscle effort during exercise

and reducing the time required to change the range of the gun

Claims (3)

1. Pneumatic spear gun for spearfishing, containing a movable barrel, piston, receiver, handle and trigger, characterized in that, in order to increase the efficiency of the gun by eliminating friction between the barrel and receiver, barrel and piston, the barrel is made in the form of a flexible sealed sleeve, one end mounted on the receiver, and the other on the piston. 2, The shotgun according to claim, characterized in that, in order to reduce muscular efforts during loading, it is equipped with a drive handle with a housing, a drum with a wound tape and a spring loaded sleeve, the free end of the tape being attached to the piston and the spring loaded the sleeve is made with a slot for the drive handle and placed in the housing on the same axis as the drum with the possibility of interacting with it by means of grooves and protrusions. 3. A shotgun according to claim 2, characterized in that, in order to reduce the time required to change the range, it is equipped with a lever, a leaf spring, one end in contact with the tape, and a cable connecting the lever with the spring.  - - ““ ESS; FIG. 7 10 g Fig.z