RU2481231C1 - Line thrower - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to rescue appliances, particularly, to line throwers. Line thrower comprises handle with trigger and thrust, cylinder, safety device, easy-off cartridge and line. Aforesaid thrust lock harpoon with line in aforesaid cylinder. Harpoon is shot by piston actuated by compressed gas force. Harpoon end is provided with a float. Safety device rod interacts with harpoon via system "lever-thrust". Line is laid in easy-off cartridge rigidly fixed at line thrower. Line extending end is connected with harpoon. Line thrower is driven by pneumatic system.

EFFECT: simplified design, higher safety, ease of use and servicing.

2 dwg

Description

The present invention relates to rescue equipment on the water, namely to line-throwing devices. It is used in seaplanes and amphibious aircraft. The scope of this line-thrower is vast: it can be used in any water transport that has a pneumatic system. The line-throwing machine is designed to transfer the line from the side of the aircraft to the towing boat and deliver the towing rope from the side of the boat to the side of the plane during a wave on the water.

A device for throwing a rescue line "Emergency line thrower", patent No. 2131824, B63C 9/26. The device consists of a missile, to which a line is attached using a cable, a pistol for firing a projectile, a knockout cartridge for igniting the charge of the projectile and a box with a tench.

The main disadvantage of such a device is the use of a powder charge, which is not safe. No less important is that during storage the powder can become damp.

The closest technical solution adopted for the prototype is the "Pneumatic line-thrower" (copyright certificate No. 523270, F41F 1/04). The device consists of a barrel, a chamber with compressed air, an exhaust and inlet valve, a pressure gauge, ease, which is held by grippers connected by rods and a ring sliding on the outer surface of the barrel, launch handle and tench. The chamber is connected by a hose to a transport cylinder, where reserves of compressed air are stored.

The disadvantage of this device is the bulkiness of the design.

The present invention has several advantages compared with the prototype:

- food comes from a stationary pneumatic system (a bulky balloon is not needed);

- the number of shots is not limited, do not need refueling;

- the claimed invention does not contain an additional chamber, as a result of which there is no need to install intake and exhaust valves;

- simplified design of fixing the harpoon with a line;

- instead of a complex and bulky design, which includes traction, grips and a ring, a simple and lightweight construction consisting of a stop and a lever is used;

- the design has a safety device to prevent accidental shots.

The claimed invention eliminates the disadvantages of similar devices. It is economical, reliable, ergonomic, completely safe.

Profitability lies in the fact that the power line is supplied from the pneumatic system of the aircraft and does not require constant maintenance and replacement of consumables.

Reliability lies in the fact that in the present invention does not use a powder charge, which can become damp and cause corrosion of the metal.

Ergonomics consists in the fact that the line thrower and the cartridge with the laid-down line are in the same housing, which is convenient and facilitates its use.

The present invention is safe to use due to the safety device that prevents accidental pulling of the trigger.

The technical task of the invention is to simplify the design of the pneumatic line-thrower, increasing safety, ease of use and maintenance.

The task is achieved in that the line-thrower is made in the form of a gun, on which the cartridge with the line is located. The safety device and the harpoon fixation device are made in a single design unit. The power line is powered by a pneumatic system.

The present invention has novelty, inventive step and industrial applicability.

The invention is illustrated by the following description and drawings, where:

figure 1 shows a General view of the line-thrower;

figure 2 is a side view of the line thrower.

The line-launcher contains a handle 1 with a trigger 2, a cylinder 3, inside of which a piston 4 is located, and a safety device 5, which, screwed into the handle 1 all the way through the rod 6 and lever 7, fixes the stop 8 in the end groove of the harpoon 9. To the cylinder 3 is mounted on brackets 10 an easily removable cartridge 11 with a laid line 12, and one end of the line 12 is fixed in the sleeve of the cartridge 11, and the other ends with a carabiner 13, worn on the ring 14 of the sliding sleeve 15 of the harpoon 9. At the end of the harpoon 9 is fixed a float 16 made of floating material, such as polystyrene. The power line is supplied from the stationary pneumatic system of the aircraft through a hose 17 connected to the line and board the aircraft.

The operation of the device is as follows.

To equip the line-thrower, the harpoon rod 9 is introduced into the line-throw cylinder 3. In this case, the line-thrower is held by the left hand by the handle 1, and the shaft of the harpoon 9, held by the right hand by the float 16, is inserted into the cylinder 3 until a characteristic click is heard, indicating that the stop of the line-thrower 8 has entered the annular groove of the shaft of the harpoon 9.

After entering the harpoon 9 into the cylinder 3 of the line gauge, line 12 is laid in series with the cover open vertically with the cover open, the free end of line 12 with the carabiner 13 is attached to the ring 14 of the sliding sleeve 15 of the harpoon 9. The cartridge 11 with line 12 is closed by a lid and mounted on the line gauge . The cartridge 11 is fixed using two brackets 10, rigidly fixed on the cylinder 3. The design of the brackets 10 makes it easy to remove the cartridge 11 and replace it with a new one.

After equipping the line-thrower with a harpoon 9, it is mounted on the fuse, for which the safety device 5 is turned up to the stop in the handle 1 of the line-thrower.

The charge line is charged by supplying compressed gas through a hose 17 from the pneumatic system to the cavity of the line.

Before firing, the trigger 2 is removed from the fuse by unscrewing the safety device 5 from the stop of the handle 1. When the trigger 2 is pressed, the rod 6 is moved, the lever 7 is turned, which brings the stop 8 out of the annular groove in the harpoon 9. In this case, the compressed gas acting on the piston 4, with force pushes the harpoon 9 out of the cylinder 3 of the line-thrower.

Together with the harpoon 9 out of the cartridge 11 comes line 12.

Thus, the present invention allows to eliminate all the disadvantages of the prototype and to achieve a simplification of the design of the pneumatic line-thrower, to improve safety, ease of use and maintenance.

Currently, the proposed invention produced working drawings, made prototypes, successfully tested on amphibious aircraft.

Claims (1)

A line-throwing gun containing a handle with a trigger and an emphasis securing a harpoon with a compressed gas fired by a piston with a line in the cylinder, while the end of the harpoon is equipped with a float, characterized in that it is equipped with a safety device, the rod of which interacts with the harpoon by means of a lever-stop system , and the line is laid in an easily removable cartridge, rigidly fixed on the line, and the protruding end is connected to the harpoon, while the line is powered from the pneumatic system.

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