Mechanical guns and projectors – Spring – Bow
Patent
1998-08-20
2000-05-02
Ricci, John A.
Mechanical guns and projectors
Spring
Bow
124 88, F41B 500
Patent
active
06055973&
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to the domain of leisure bows, in particular for target archery. It relates more particularly to a body for a bow.
BACKGROUND OF THE INVENTION
Leisure bows of the type made up of two flexible branches equipped with a central grip are generally used for beginners. However, it is now conventional for a leisure bow to be made up of a rigid body receiving two flexible branches between the ends of which the bow string is stretched. Such a one-piece body is made of glued laminated wood, or by casting, e.g. using a magnesium alloy, or else by machining, e.g. using aluminum.
The body has a particular configuration since its top has a narrow zone constituting the window of the bow, in which the arrow-support and sight-support accessories are fixed, and, under the window, it has a shaped grip against which the palm of the hand is applied while the bow is being used. The grip may optionally be covered with an overgrip, e.g. with it being possible for the overgrip to swivel resiliently about an axis, as described in Document FR A 2 580 795.
A bow is an assembly of a body, of two branches, of a string and of accessories that are fixed to the body: arrow supports, sight supports, stabilizers, and optionally power-adjustment means.
SUMMARY OF THE INVENTION
An object that the Applicants have set out to achieve is to propose an even wider selection of options making up any given bow.
This object is achieved by the body of the invention which is designed to equip a bow that also comprises two branches mounted on said body, and a string stretched between the two free ends of said branches.
In a manner characteristic of the invention, the body is made up of two distinct pieces that are fixed to each other, namely:
a) a front piece whose end portions are designed to receive the flexible branches; and
b) a back piece whose front face has the same profile as the back face of the front piece so that it can be applied snugly against said back face, and whose back face is locally shaped to form a grip;
in addition, the side faces of the back piece are in alignment with the side faces of the front piece.
It can be understood that the front and back pieces may be of different colors, shapes, or styles, provided that the above-defined structural characteristics are satisfied. Thus, the invention makes it possible to obtain a very wide variety of combinations of front and back pieces to make up any given bow body.
In addition to the mere appearance, relating to varying colors and shapes, the invention advantageously makes it possible to modify the behavior of the bow. For this purpose, the pieces making up the body are made of different materials and/or have different densities.
This is totally impossible to achieve with one-piece bodies.
Preferably, the front piece of the body of the invention is made of glued laminated wood, and the back piece is made of a plastics material or of a metal material.
In a conventional bow, the body is made of glued laminated wood, of a molded plastics material, or of a cast or machined metal material. The behavior of the bow, its performance, and the sensations that it procures for the archer are, in particular, functions of the make-up of the body.
By means of the invention, it is thus possible to obtain behavior, performance, and sensations that have previously been impossible to achieve, by combining two different materials, or two different densities of the same material.
Furthermore, vibration in a bow is a known problem. Document FR A 2 356 903, describes an attempt to solve that problem by separating the grip from the body, and by mounting said grip on said body by resilient means. According to that Patentee, since the grip is separated from the body, it should be capable of vibrating independently of the body and of the branches of the bow.
To the best of the Applicants' knowledge, the bow described in that prior document has never been put to practical use.
Another object of the invention is to provide a bow body that mitigates the abo
REFERENCES:
patent: 3176674 (1965-04-01), Smith
patent: 3415241 (1968-12-01), Bear
patent: 4257385 (1981-03-01), Stewart
patent: 4693230 (1987-09-01), Sugouchi
patent: 4966124 (1990-10-01), Burling
patent: 5269284 (1993-12-01), Pujos et al.
patent: 5469834 (1995-11-01), Higgins et al.
Gibon Joel
Gomez Augustin
Decathlon
Ricci John A.
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