FR2758623A1 - Underwater harpoon gun loader - Google Patents

Abstract

An underwater harpoon gun, in which the harpoon is fired by elastic cords, has a slider (9) with one or more handles to tension the cords in preparation for firing. The elastic cords are connected by a piano wire which fires the harpoon, and after the cords have been tensioned the slider is moved back to its forward position so it is not thrown forward on firing. In a variant the handles on the slider can be folded when not in use.

Description

 The present invention relates to a device for loading underwater rifles with "Sandows', commonly known as underwater crossbows.

 These crossbows (Figure 1) very widespread in the world, consist of a barrel (1) in aluminum tube (originally in wood), with a diameter between 26 and 30 millimeters, mounted at a end, on a stick (2) which allows to hang the back of the arrow (3), and, at the other end, on a head (4) which lets pass the arrow and on which are mounted the "Sandows "(5).

The "Sandows" are linked together by a piece called "piano cord" (6); the arrow, connected to the crossbow by a wire, has on its rear part notches (7) allowing the attachment of this piano string.

The accompanying drawings illustrate the invention - Figure 1 shows, in plan, the classic crossbow without its cocking device; - Figure 2 shows, in partial section, the crossbow provided with a removable device (8); - Figure 3 shows, in plan, a crossbow with a sliding device in the non-use position; - Figure 4 shows, in plan, a crossbow with the sliding device in the pre-cocking position; - Figure 5 shows, in plan, a crossbow with the sliding device in the cocking position; - Figure 6 shows, two views, the armed crossbow, ready to shoot with its sliding device which has been replaced after cocking in the waiting position.

 The stick (2) being pressed on the stomach, one grasps with two hands the "Sandows" (5) then, by pulling towards the stick one hangs the piano cord (6) in one of the notches (7) of the arrow (retained by the stock); hands must then be delicately released because improper maneuvering can result; - pulling off the piano wire which, pulled by the "Sandows", very easily risks breaking and severing the fingers.

 The present invention relates to a device which makes it possible to load the crossbow without any contact between the hands and the "Sandows" and, at the same time, eliminates any risk of injury and facilitates arming.

This device can be designed in various ways a) Removable: in the form of one or more handles (8), integral or independent, attaching to the "Sandows" or on the piano cord and allowing to arm without manual grip directly on the "Sandows" (Figure 2).

The "Sandows" are then tensioned more easily thanks to the manual grip of this handle (which allows easier gripping) and are then hung on the notch (7) of the boom; the handle of the armed "Sandows" is then released. The weapon is ready to fire, the handle can be lodged on the crossbow or remain suspended on the user's wrist by a wrist strap.

b) Sliding: in the form of a carriage (9) sliding on the crossbow tube and comprising one or more handles, fixed or articulated, leaving the freedom to load the weapon traditionally (that is to say by taking the "Sandows" manually to stretch them and hang them on the notches); the carriage, left towards the front of the crossbow (Figure 3), does nothing with this operation.

This same carriage, pulled manually backwards by its handles, drives the "Sandows" (Figure 4) towards the notches of the arrow; the attachment is done automatically (Figure 5). After having chosen its notch, the user pushes the trolley towards the head of the crossbow; the weapon is ready to fire (Figure 6). The carriage, remained on the crossbow tube, does not hinder the start of the arrow. When the "Sandows" have finished propelling the boom and have returned to their initial diameter, they find themselves immobilized by the carriage, which eliminates the risk of tangling with the arrow wire (a risk well known to the underwater hunter the name of "dumpling").

The carriage (9) has a modular passage allowing it to adapt universally to all types of crossbow barrel.

c) In any other form of fixing allowing a better grip of the "Sandows" and avoiding the direct manual grip of these.

Claims (8)

 1- Device for loading underwater rifles with "Bands characterized in that it is removable and that it comprises one or more handles, integral or independent (8), attaching to the rear part of the" Bands ", allowing a significant pull on them without direct hand contact on the "Sandows".  2- removable device according to claim 1, comprising a system  of fixing on the rear part of the "Sandows" allowing a stretching of these in the front-rear direction and the release in the rear-front direction.  3-Device for loading the submarine guns with "Bands characterized in that it is sliding and that it comprises a carriage (9), sliding on the tube of the crossbow, provided with one or more handles, with the passage of "Sandows" and the arrow.  4- sliding device according to claim 3, wherein the carriage (9), sliding, has handles, fixed or articulated, allowing, by easy grip, to increase in significant proportions the arming force of "Sandows ".  5- sliding device according to claim 4, wherein said carriage (9) has openings allowing the passage of the arrow and "Sandows"; said passages leaving complete freedom to the arrow; on the other hand, when said carriage is moved from front to rear, it traps the part (6), called "piano cord", connecting the "Sandows", presenting it positioned on the arrow and allowing it to s '' automatically hook on the arrow notches.  6- sliding device according to claim 5, wherein said carriage (9), leaving the "bows" hooked to the notch of the arrow and, by simple push from the rear to the front, frees the "bows "and comes back to the front of the crossbow.  7- Sliding device according to claim 6, wherein said carriage (9) being replaced at the front of the crossbow, at the time of shooting, the "Sandows" propel the arrow and, resuming their initial diameter, come s' immobilize in their passage of the carriage, stopping their course forward and thus avoiding a risk of tangling with the wire which retains the arrow.  8- Sliding device according to claim 3, wherein said carriage has a modular passage allowing it to adapt universally to all types of crossbow barrel.