A sportfishing speargun is sized for ease of use and provides the power of the largest rubber band speargun. The speargun includes a drive system with two or more pulleys, the drive system is driven by one or more rubber bands to provide mechanical advantage and the force of a large speargun in a compact device.

A sportfishing speargun is sized for ease of use and provides the power of the largest rubber band speargun. The speargun includes a drive system with two or more pulleys, the drive system is driven by one or more rubber bands to provide mechanical advantage and the force of a large speargun in a compact device.

The invention is directed to a tension gun for firing arrows. The tension gun is comprised of a stock, a trigger, a pistol grip, and a forearm which are configured in a manner which is similar to a conventional crossbow. The bow arms are removed from the design, and replaced by a pair of coaxial coil springs and other tension multipliers within the forearm, which propel the arrow. A folding handle at the forward end of the forearm is provided for carrying the tension gun.

The invention is directed to a tension gun for firing arrows. The tension gun is comprised of a stock, a trigger, a pistol grip, and a forearm which are configured in a manner which is similar to a conventional crossbow. The bow arms are removed from the design, and replaced by a pair of coaxial coil springs and other tension multipliers within the forearm, which propel the arrow. A folding handle at the forward end of the forearm is provided for carrying the tension gun.

A sportfishing speargun is sized for ease of use and provides the power of the largest rubber band speargun. The speargun includes a drive system with two or more pulleys, the drive system is driven by one or more rubber bands to provide mechanical advantage and the force of a large speargun in a compact device.

A sportfishing speargun is sized for ease of use and provides the power of the largest rubber band speargun. The speargun includes a drive system with two or more pulleys, the drive system is driven by one or more rubber bands to provide mechanical advantage and the force of a large speargun in a compact device.

The present invention relates to a new type of speargun which uses a continuously-variable-transmission drive system for energy storage and transmission of motion of the ejection device (which may be a piston, a rubber element or a spring) to the spear. The continuously-variable-transmission drive system consists of a shaft (10), the winding drums (8-8.1-9) and the ropes (4), (11). In order to double, triple and quadruple the energy storage to the ejection device, the drive system consists of the respective number of shafts, winding drums and ropes.

The present invention relates to a new type of speargun which uses a continuously-variable-transmission drive system for energy storage and transmission of motion of the ejection device (which may be a piston, a rubber element or a spring) to the spear. The continuously-variable-transmission drive system consists of a shaft (10), the winding drums (8-8.1-9) and the ropes (4), (11). In order to double, triple and quadruple the energy storage to the ejection device, the drive system consists of the respective number of shafts, winding drums and ropes.

A trigger mechanism for use in a crossbow having a bowstring, the trigger mechanism comprising a housing having a slot formed therein, a trigger lever pivotally mounted in the housing and having a trigger that extends partially outside the housing, a catch pivotally mounted in the housing, and a disarm mechanism received in the housing that is moveable between a neutral first position and a disarm second position. The catch has a first end configured to retain the bowstring in a cocked position and a second end configured to operatively engage the trigger lever. When the disarm mechanism is in the disarm second position and the user draws the bowstring further into the housing slot, the trigger mechanism is configured to allow the catch to move from the catch first position into the catch second position without requiring the user to engage the trigger (e.g., squeezing or pulling the trigger).

A spear launching assembly includes a tube that is held in a hand and the tube is pointed toward game. A sling is removably coupled to the tube and the sling is comprised of a resiliently stretchable material. The sling is selectively drawn away from the second end of the tube to urge the sling into a shooting position. Moreover, the sling is releasable when the sling is urged into the shooting position thereby facilitating the sling to recoil toward the tube. A spear is slidable through the tube such that the spear is aimed at the game when the tube is pointed at the game. A lighting unit is coupled to the tube and the lighting unit is turned on to emit light outwardly from the tube wherein the lighting unit for illuminating the darkened environment and locating the spear when the spear has been launched. A plurality of arrow heads is provided and each of the arrow heads is removably coupled to the spear to pierce the game thereby facilitating the game to be killed.