ES1079009U - Spearfishing speargun offset and balanced (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Spearfishing speargun characterized by using one or more balancing pieces (4) attached to the shaft (10) in the area of the head or end furthest from the rifle. (Machine-translation by Google Translate, not legally binding)

Description

OBJECT OF THE INVENTION

The present invention, as expressed in the statement of this specification, refers to an underwater fishing rifle that uses elastic elements to propel the harpoon, and which incorporates a novel solution to improve the firing performance and the stability of the weapon.

This solution aims to solve several of the problems present in traditional rubber rifles. These problems are caused by the resulting traction force exerted by the tires, and among them we can highlight mainly: the arching of the shaft, the instability of the gun at the time of firing, and the consequent loss of precision.

BACKGROUND OF THE INVENTION

Spearfishing rifles that use elastic bands to drive the harpoon, we can basically divide them into two groups: those that carry the rubber arranged only in their upper part, fixed on the head (traditional monogomas or multigomas); and those in which the tires and / or lines of force cover both the upper part and, totally or partially, the lower part, thanks to rollers, pulleys, shafts, supports, etc., arranged in different parts of the rifle (rollerguns ).

Both types of rifles have very different characteristics, behaviors, and designs. In addition to the usual difference in the form of energy delivery, there are other important differences that condition the design of one or another type of rifle.

In the case of rollerguns, we find balanced and compensated rifles in terms of the force exerted by the tires with respect to the gun shaft. Said rubbers, and / or lines of force, when traveling both sides of the shaft, exert their tensile force, basically, along the longitudinal axis thereof. This means that the rifle is not subjected to inadequate tensions that tend to fight it. Therefore, very high loads can be applied without the combustion in the shaft being a problem, and without the precision being affected by it.

In the case of conventional rifles, monogomas or multigomes, the gums are fixed, or pass, by the end of the shaft furthest from the fisherman, exerting their traction force along the top of the rifle mainly. This causes the shaft to fight. To avoid this, manufacturers must resort to designs and materials that are as rigid as possible. Even so, the problem persists, and the designs of the rifles, at times, cannot be as fine and light as one would like due to this problem.

To solve this problem, this invention proposes a very simple solution, which will result in a balanced and compensated monogome or multi-rubber rifle, as if it were a rollergun.

Said solution consists simply in using different elements that allow us to modify the line of forces exerted by the tires, moving the final point of fixation of the force exerted by the tires, to a more convenient position; preferably, the lowest and most backward part of the shaft. Said fixing point can be variable, it can even be placed again in another part of the shaft, further away, once we have made the passage of the lines of force through a certain point of the lower part of it.

In reality, multiple steps of the lines of force and multiple points of fixation are possible, and all of them enter into the solution that is claimed here as a novelty, and that is none other than getting the tensile force generated by the tires to be exerted mainly along the longitudinal axis of the shaft, and not through its upper part, as is currently the case with this type of rifle.

A solution, of the many possible, could be done simply, eliminating the fixation or the passage of the rubbers through the head. Instead, we can fix the tires at that point, either to certain balancing pieces that we will detail later, or to one or more lines of dyneema or other material that will simply move the end point of traction of the tires to another more suitable point . Said lines, by means of the design and the necessary elements, we would make them pass through said head or end away from the shaft, then directing them to the bottom of the rifle, and then fixing them in the part that we consider more convenient to guarantee the balancing of the lines of force, preferably, but not exclusively, on the lower and backward part of the shaft.

With this solution, the resulting lines of force would cover both the upper and the lower part of the shaft, exerting, now, its tensile force along the longitudinal axis of the shaft, minimizing the possibilities of bending.

This new arrangement of the lines of force, in addition to reducing the possibilities of flexion of the weapon providing a greater structural guarantee, offers a much more controlled recoil and a much more stable shot, improving accuracy.

Another improvement provided by this solution refers to the design of the rifles.

If we do not have the problem of tube bending due to the traction of the tires, we can go to smaller designs that improve the handling of the gun, being able to choose the volume and design that we like in a much freer way.

The elements that we can use to make said modification of the lines of force and guarantee the balance of the shaft can be very varied.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1: Side view of the rifle. The rubber bands (l) arranged in the upper part of the shaft (10), fixed to the harpoon (2) by one of its ends, and to the balancing pieces (4) by the other end, stand out. The balancing parts (4) arranged at the end of the shaft furthest from the mechanism (5), the balancing lines (3) running along the bottom of the shaft, and the final fixing point of the balancing lines are also highlighted. (6) located at the bottom of the shaft (10), very close to the mechanism (5).

Fig. 2: Detail of the balancing pieces (4). This figure highlights the three main points of these pieces, and which are: The fixing point to the shaft (7), the upper fixing point (8) intended for fixing the rubber bands (1), and the point of lower fixing (9) intended for fixing the balancing lines (3).

DESCRIPTION OF A PREFERRED EMBODIMENT

To achieve the proposed objective, multiple embodiments are possible, and would include both the elaboration of a shaft specifically adapted for this purpose, such as the modification of traditional commercial rifles, or the implantation of heads or similar parts in conventional rifles.

An embodiment of the many possible, explanatory and never limiting, that will allow us to achieve the purpose that is claimed here as a novelty, and that beyond the elements used for it, as we have said, is the balancing of forces in traditional rubber rifles, it could be done thanks to the use of two simple metal parts fixed at the far end of the shaft.

Said metal parts would be intended to offer the necessary support both to the rubber bands at the top, as well as to the lines of dyneema or other material, which will cover the bottom.

These metal parts should be fixed and centered at the appropriate height, to ensure that the resulting tensile force is exerted along the longitudinal axis of the shaft. Said fixation would only be carried out at a centered point of the pieces, so as to allow their movement around the fixing point. In this way, these pieces will always offer the right balance to the force exerted by the tires.

In the same way, a correct arrangement of the balancing lines located in the lower part will guarantee the absence of hindrances or discomfort during the fishing action.

Thus, with this simple variation of the lines of force, only improvements in the performance of the rifle and a greater structural guarantee of the same can be obtained.

Claims (1)

one

Spearfishing rifle characterized by using one or more balancing parts (4)

fixed to the shaft (10) in the area of the head or end furthest from the fusi1.

5

2 Spearfishing rifle according to claim n21, characterized by having

one or more balancing pieces (4) consisting of a central fixing point to the

shaft (7), around which they can rotate freely, of one or more fixing points

for the rubber bands in the upper part (8), and of one or more fixing points for the

balancing lines at the bottom (9).

10

3

Spearfishing rifle according to claim n22, characterized by having

one or more balancing lines (3) fixed to the balancing parts (4) of the head in

one end, and to the lower fixing points (9) at the other end.

fifteen

4 Spearfishing rifle according to claim n23, characterized by having

one or more fixing points (6) for the balancing lines, arranged in the part

lower back of the shaft.

10 1/2   2/4 / Fig. L ++ --- 8  4------;

-

++ --- 7 - + - + --- 9

Fig 2