ES2343029T3 - ARPON HOLDING SYSTEM OF A SUBMARINE FISHING SPEARGUN. - Google Patents

Abstract

Fastening system of the harpoon in an underwater fishing rifle, designed to hold the harpoon at the level of the mouth of the rifle so that it remains permanently strictly parallel to the barrel of the rifle and allows a precise shot, consisting of moving elements (12) located near the mouth (4) of the rifle and arranged to be able to let the harpoon (5) pass at the moment of its placement on the mouth, then it recovers its initial position and keeps the indicated harpoon sufficiently fixed at this point in the shot , characterized in that it is constituted by two jaws (12) or symmetrical moving parts held in a closed position by means of springs (14) or elastic elements.

Description

Harpoon clamping system in a rifle underwater fishing.

The present invention aims at a harpoon clamping system in an underwater fishing rifle.

The invention relates in a general way to industrial and commercial field of manufacturing and dissemination of equipment intended in particular for divers at sea or in fresh water.

An underwater speargun allows launching harpoons underwater. It is usually composed of a cylinder head 1, that contains the trigger mechanism 2 and that serves to grab the weapon, a cannon 3 that connects the stock with mouth 4 and a harpoon 5.

The harpoon can be propelled by a system of compressed air or elasticity, but should always remain parallel to the barrel that serves as a sight axis so that the accuracy of the shot is guaranteed.

In compressed air rifles, harpoon 1 is found in the center of the barrel and is pushed by a plunger 6, also propelled forward by compressed air. The harpoon is attached from its heel fixed to trigger mechanism 2, up to mouth 4 (figure 1).

A rifle and a harpoon clamping system according to the preamble of claim 1 described in the US4,206,740.

The conception of rifles with elastic is different. The harpoon 1, located outside the canyon 3, and more generally above this, it is pulled by elastic 7 hooked near his heel on notches 8 provided for this respect and fixed to the mouth 4 comprising at the top a guiding medium under 9 and can be closed type with wide pitch 10 allowing the aiming (figure 3), or of the open type (figure 4).

However, the problem that conditions the shooting accuracy is the same: harpoon 1 must be maintained parallel to the cannon during the firing action. Therefore, in this conception, the harpoon is only attached by its heel to the mechanism of butt is only supported by its own weight next to the mouth 4 and it is not fixed at this point; it can move based on the fisherman's movements and vibrate if the current is too much strong. In both cases, the accuracy of the shot can be altered and the noise produced by the vibrations may present an obstacle in the approximation of possible dams (figure 2).

To alleviate these inconveniences, Manufacturers use different means:

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Guide specific by which the harpoon passes and that is fixed to the mouth. This guide called sliding also serves to retain the harpoon in the rifle. The slide however poses a ballistic problem: it slows and substantially deflects the harpoon so that a good number of fishermen have not adopted it.

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Use of the retention thread of the harpoon to lock it firmly by a round trip system. He principle is that the thread is tensioned on the harpoon and applies this over the mouth and then return to the stock to be positioned in the long thread At the time of the shot, the thread is long and releases the harpoon

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This embodiment is not however easy to perform; the balance in the water is precarious and, so that the harpoon is effectively secured to the mouth, the thread must be kept in tension until it has been brought back to the long thread. It is not rare that the whole operation has to be reset several times before getting it.

Another solution is to use magnets that, located in the mouth support, hold the harpoon fixedly in this point.

The drawback of this solution is that it does not It can be used with harpoons made of stainless steel because This material is insensitive to the attraction of magnets. By obvious reasons for resistance in the marine environment, steel stainless is however the most used in the sector of the underwater fishing. This solution cannot therefore be to consider.

The invention object of the present application of Patent is a system that adapts to open-type mouths or closed, which allows to fix the harpoon at the level of the mouth in such a way that is permanently strictly parallel to the canyon and Allow accurate shooting. Allows quick gun assembly facilitating the placement of the harpoon and ensures the fastening of the harpoon over the mouth regardless of the fixation of the thread in the long thread

It consists of mobile elements, elastic or deformable arranged near the mouth of the rifle and arranged to be able to deform to let the harpoon pass in the moment of placement over the mouth, then retake its position or its initial way to keep it fixed enough in this point.

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In the attached drawings, given as non-limiting examples of embodiments in accordance with the present request:

Figures 1 and 2, already mentioned, represent existing submarine rifles, respectively of compressed air and of elastics,

Figures 3 and 4, also mentioned more above, they are enlarged sections according to the arrows F1 of figure 2 which show a closed type mouth and a type mouth open.

Figure 5 represents, side view, a mouth rifle equipped with a flexible clamp,

Figure 6 is an end view, according to the arrow F2 of figure 5,

Figures 7 and 8 are cross sections which show a double jaw system, respectively in closed position and in open position during the placement of the harpoon,

Figure 9 represents under the same conditions a double jaw system provided with a device separation regulation,

and figure 10 represents, always in them conditions, a double jaw system with manual opening.

The object of the invention, figures 5 to 10, is composed of one or more jaws or moving parts or parts elastic deformables attached or not to the mouth by means of shafts, or contained in accommodation and operated by one or more springs or elastic parts, constituting a whole clamp that allows blocking The harpoon in the mouth. It is willing to allow you to keep a minimum clearance between the harpoon and the mouth in order to allow its longitudinal displacement in the shot.

The system, figures 5 and 6, may consist of an elastic clamp 11 mounted above the mouth 4 whose sides are willing to depart in order to allow placement of harpoon 5 and close again to hold it.

However, this system will consist of preference for one or more movable or elastic jaws or deformables mounted on one or several axes; may also be constituted by moving parts or elastic balls or not, likewise supported by springs or elastic parts so that they can warp to pass the harpoon at the time of placement over the mouth, then they will recover their position or initial form to keep it fixed enough at this point.

In figures 7 to 10, the device is formed by two symmetrical jaws 12 integrated in the mouth 4 of the rifle and oscillator along axes 13 parallel to that of barrel 3. These jaws are held in closed position by means of a spring 14 located between its lower parts, below the element of guided under 9. This spring allows jaws 12 to open in the placement of harpoon 5 (figure 8) and recover its position once The operation is over.

The jaws 12 can be adjustable, thanks to a screw 15 acting on a movable wedge 16, such that the fisherman can adjust the grip according to the diameter specific to the harpoon you use (figure 9).

These jaws may be arranged so that can be opened manually thanks to some lateral supports 17 so that the harpoon 5 can be placed without noise avoiding the clicking noise of the jaws when closing on the harpoon.

These provisions can naturally apply equally to a single jaw system.

The device object of the invention may be integrated in mouth 4, or be integrated in any element located in the extension of the canyon 3, in front of or behind the mouth.

The positioning of the various elements constitutive provides the object of the invention with a maximum of useful effects that had not been, so far, obtained by similar devices

Claims (7)

1. Harpoon clamping system in an underwater fishing rifle, intended to hold the harpoon at the level of the mouth of the rifle so that it remains permanently strictly parallel to the barrel of the rifle and allows a precise shot, consisting of moving elements ( 12) located near the mouth (4) of the rifle and arranged to allow the harpoon (5) to pass at the time of its placement on the mouth, then recovers its initial position and keeps the indicated harpoon sufficiently fixed at this point in the shot, characterized in that it is constituted by two jaws (12) or symmetrical moving parts held in a closed position by means of springs (14) or elastic elements. 2. System according to claim 1, characterized in that it is constituted by two jaws (12) that oscillate along axes (13) parallel to the barrel (3) keeping said jaws in closed position by means of a spring (14) or an elastic element located between its lower parts. 3. System according to claim 2, characterized in that the jaws (12) are adjustable, thanks to a screw (15) acting on a movable wedge (16) so that the fisherman can adjust the support in function of the specific diameter of the harpoon (5) that you use. System according to any one of claims 2 and 3, characterized in that the jaws (12) are arranged so that they can be opened manually thanks to lateral supports (17) so that the harpoon (5) it can be placed without noise avoiding the noise of the jaw click when closing on the harpoon. 5. System according to claim 1, characterized in that it is constituted by moving parts contained in housings and operated by one or more springs or elastic parts. 6. System according to any one of the preceding claims, characterized in that it is integrated in the mouth (4) of the rifle. 7. System according to any one of claims 1 to 5, characterized in that it is integrated in an element located on the barrel extension (3) of the rifle, in front of or behind the mouth (4).