Games using tangible projectile – Golf – Club or club support
Patent
1994-09-30
1996-08-20
Passaniti, Sebastiano
Games using tangible projectile
Golf
Club or club support
473346, 473349, A63B 5304
Patent
active
055474276
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to a new construction for a golf club head, especially a head of the "wood" type, as well as to the method of manufacturing such a head.
2. Discussion of Background and Material Information
The golf club used typically at the start of a hole is commonly known as the "driver". It generally has a hollow metallic head with a slight thickness and is constituted by the assembly of several metal elements welded to one another to define a closed inner cavity. Such constructions, described in U.S. Pat. No. 4,438,931, U.S. Pat. No. 5,024,437 and Japanese Patent Publication No. 61-33973, for example, result in clubs whose tolerance cannot be improved beyond a certain threshold due to the critical mass of the head and due to the isotropic character of the material. Indeed, generally it is not possible to add weights to the club head without increasing the mass limit beyond a point at which it is no longer possible to obtain the correct balance for the club and, furthermore, the distribution of mass is very closely linked to the shape of the head itself.
Another disadvantage of this type of head is related to the nature of the material that constitutes the impact surface, i.e., the ball-striking face, which, although enabling a direct transmission of information to the player, provides a disagreeable sensation and sound at impact.
Heads constructed entirely of a composite material, with the exception of the sole, have appeared over the last few years. These types of constructions are very rarely favored by professional golfers because, most often, they are constructed in a single piece by the compression molding method, without any particular regard to the distribution of mass.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide a golf club head having a new construction that overcomes the aforementioned disadvantages, i.e., on the one hand, enabling improvement of the sensation perceived by the player at impact, while retaining direct transmission of information to the player, and, on the other hand, increasing the mass distribution and concentration possibilities so that the head becomes more tolerant by increasing its moments of inertia.
Another object of the invention is to improve the transmission of the energy of the mass, so divided and concentrated, directly towards the impact surface. The invention also has the advantage of being able to be implemented by various techniques and in a wide choice of materials.
To this end, the present invention is related to a golf club head that includes, on the one hand, a hollow body made of a single, molded, thermoplastic element, having a forwardly facing opening, including an upper wall, a peripheral wall or belt, and possibly a lower wall and, on the other hand, an impact-resistant metallic sealing element comprising a front wall constituting the impact surface, attached and cooperating with the body so as to define an inner space.
Advantageously, at its periphery, the body comprises at least one peripheral housing within which an additional mass made of a high density material is positioned. In addition, the body comprises one (or several) inner reinforcement wall(s) dividing the inner space into a plurality of cavities.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be more fully described and other characteristics and advantages of the invention will become apparent from the description that follows with reference to the annexed drawings that are provided only as non-limiting examples thereof.
FIG. 1 is a front elevational view of a "wood" type head, and especially a head of the invention;
FIG. 2 is a side elevational sectional view along line A-A' of FIG. 1;
FIG. 3 is a perspective view showing the inner subassembly of the head before assembly of its various component elements;
FIG. 4 is a perspective view of the body of the club head according to a variation of FIG. 3;
FIG. 5 is a side elevational sectional view along line A-A' of a variation
REFERENCES:
patent: 4021047 (1977-05-01), Mader
patent: 4438931 (1984-03-01), Motomiya
patent: 4775447 (1986-03-01), Hariguchi
patent: 4811949 (1989-03-01), Kobayashi
patent: 4883623 (1989-11-01), Nagamoto
patent: 4930781 (1990-06-01), Allen
patent: 4988104 (1991-01-01), Shiotani et al.
patent: 5024437 (1991-06-01), Anderson
patent: 5090702 (1992-02-01), Viste
patent: 5106094 (1992-04-01), Desbiolles
patent: 5141230 (1992-08-01), Antonious
Rigal Jean-Pierre
Vincent Beno it
Passaniti Sebastiano
Taylor Made Golf Company Inc.
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