Spear gun with retractable string mechanism

Abstract

The spear fishing gun with a reliable and effective retractable mechanism is provided. The spear gun consists of the gun shaft, firing device, handle (including grip) and gripped trigger, retractable spear mechanism, and the stopper of string to prevent the spear, from ramming into the retractable string device during retraction. As soon as the spear is shot and the diver sees that he misses, he presses on the spring trigger retracting string mechanism and the spear comes back to the gun. If the spear pierces the fish, the diver can now press the retractable string device to either release the string or retracts it to collect the fish. The retractable string mechanism is equipped with a large spool which allows the diver to shoot at long along with short distances. The spool does not allow the string to unwind completely and waste time to rewind. This is regulated by a controlling button. There is also a screw which adjusts spring power and regulates the speed and looseness of the string during retraction while the stopper prevents the spear from ramming into the retractable string device during retraction. The stopper is a plastic, metal, or glass ball, or it may have other shape. Diameter or section of the stopper is larger than that of the string guide of the retractable mechanism. The same screw which is used for regulating spring power also functions as the on and off button for the retractable string mechanism. The invention is suitable for both general types of the spear fishing guns: (a) the rubber-powered, or sling-type spear gun, and (b) the pneumatic spear gun, which utilizes an air-driven piston to drive the spear shaft down a rifle-like barrel.

Description

FIELD OF INVENTION [0001] The present invention relates to both general types of underwater spear guns: pneumatic and rubber-powered spear guns, especially to spear guns equipped by additional devices assist the diver and improve his skills in fishing. BACKGROUND OF THE INVENTION [0002] Since ancient times, the underwater divers use spear guns that propel a spear or an arrow toward a fish. When the spear hits the fish, the fish usually flips and tries to free itself of the spear. Sometimes the fish can free itself and because of this the diver loses the spear. Other times the diver misses the fish completely and also loses the spear. If there is string attached to the spear then the diver can retrieve the spear, but it takes time to wind up the string so they can shoot the spear again. If there is no string then the spear is completely lost. But, the time it takes to wind up a string is completely un-acceptable due to that the diver ends up spending more time on the winding then the...

AI Technical Summary

Benefits of technology

[0006] It is a primary object of the present invention to provide a strong and reliable device for the quick retrieval of the spear to the diver.

[0008] Yet another objective is so that the device is simple to make / fix, and easy to attach the retractable device to any type of spear gun.

[0010] In accordance with the present invention, spear fishing gun with a reliable and effective retractable mechanism is provided. The spear gun consists of the gun shaft, firing device, handle (including grip) and gripped trigger, retractable spear mechanism, and the stopper of string to prevent the spear, from ramming into the retractable string device during retraction. All of these devices and parts work as separate parts of a whole for proper working of the spear gun.

Problems solved by technology

The spool does not allow the string to unwind completely and waste time to rewind.

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