Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1994-04-11
1995-11-21
Passaniti, Sebastiano
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
273 81A, 273 80R, 273 77A, 273169, 273 806, 73 6503, A63B 5300, G01M 112
Patent
active
054679842
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an improved golf club, more specifically, of the "wood" type, as well as to a set of golf clubs comprising such a club and having the same advantages thereof.
2. Description of Background and Relevant Information
A golf club basically includes a handle commonly known as a "shaft", at the lower end of which the head or impact member is affixed, and at the upper end of which is the "grip".
The current tendency is to produce light-weight golf clubs for the purpose, on the one hand, to improve the performance of the club in terms of the length and accuracy of the golf shot, and on the other hand, to improve the player's comfort in the game, whether the player is a beginner or a professional.
The reduction in the weight of the club head directly influences the distance of the shot and causes the opposite effect from the effect that is sought. Also, the gain in mass is obtained along the shaft by virtue of composite material technology. Clubs equipped with such shafts make it possible to increase the distance of a shot by approximately 10% compared to distance obtained with clubs equipped with conventional shafts.
In spite of these advantages, most golfers do not like this type of light-weight club because of the unpleasant sensations felt during the impact movement, commonly referred to as the "swing", due to poor dynamic balancing of the club In particular, poor dynamic balancing is known by the applicants to directly influence the trajectory of the ball, resulting in a "slice" i.e., a trajectory curving towards the right for a right-handed player (curving towards the left for a left-handed player), or a "hook", i.e., a trajectory curving towards the left for a right-handed player (curving towards the right for a left-handed player).
It is for these various reasons that players on professional golf circuits continue to use certain conventional clubs, referred to as "heavy" clubs, whose shafts are generally metal or graphite, which they find correctly balanced but whose performance is inferior to that of clubs whose lightened shafts are made of carbon fiber, for example.
SUMMARY OF THE INVENTION
An object of the present invention is to overcome the aforementioned disadvantages, particularly by proposing a lightened club, therefore an efficient club, whose dynamic balancing is identical to, or very close to, that of clubs preferred by most golfers.
An object of the invention also is to propose a correlated set of golf clubs having the same advantages as the club thus produced.
To these ends, the club of the invention is constituted by a shaft, at the upper end of which a grip is affixed, and at the lower end, a head is affixed, the total mass of the club being less than 340 grams and wherein the ratio of the length of the equivalent pendulum along the length of the club is less than 0.87, preferably between 0.85 and 0.87.
A complementary characteristic of the invention is that the distribution of mass along the club is such that the mass of the grip and shaft represent 30 to 40% of the total mass of the club.
Another characteristic of the invention is that the grip is light and its mass is less than or equal to 35 grams.
BRIEF DESCRIPTION OF THE DRAWINGS
Other characteristics and advantages of the invention will become apparent from the following description with reference to the non-limiting, annexed drawings and wherein
FIG. 1 illustrates a simplified view of the club according to the invention;
FIG. 2 is a diagram showing the positioning of a club according to the invention, comparing its characteristics to those of conventional known clubs;
FIG. 3 illustrates a simplified view of a golf club of the prior art;
FIG. 3a illustrates an enlarged detail of FIG. 3, especially the upper portion of the club;
FIG. 3b illustrates the shaft of the club of FIG. 3;
FIG. 4 illustrates a simplified view of a golf club according to the invention;
FIG. 4a illustrates an enlarged detail of FIG. 4;
FIG. 4b illustrates the shaft of the
REFERENCES:
patent: 4058312 (1977-11-01), Stuff
patent: 4128242 (1978-12-01), Elkins
patent: 4240631 (1980-12-01), MacDougall
patent: 4415156 (1983-11-01), Jorgensen
patent: 4674324 (1987-06-01), Benoit
patent: 4819939 (1989-04-01), Kobayashi
patent: 4887815 (1989-12-01), Hughes
patent: 4900025 (1990-02-01), Suganuma
patent: 4971321 (1990-11-01), Davis
patent: 5152527 (1992-10-01), Mather
Veux Jean-Luc
Vincent Benoit
Passaniti Sebastiano
Taylor Made Golf Company Inc.
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