Club head assembly for a golf club

Details Club head assembly for a golf club Club head assembly for a golf club

1999-12-21

2001-10-09

Chapman, Jeanette (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S345000

Reexamination Certificate

active

06299546

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a club head assembly for a golf club, more particularly, to a club head assembly having excellent connectivity between the head and the shaft to avoid the distortion of the head by the torque by the ball at impact during a shot.
2. Description of Related Art
As shown in
FIG. 6
, the conventional putter head assembly comprises a club head (
60
) having a putting face (
62
), a crown (
64
) and a shank (
66
) integrally extending from the crown (
64
), and a shaft (
50
) having a distal end inserted into the shank (
66
) of the club head (
60
). Adhesives are used to firmly attach the distal end of the shaft (
50
) into the shank (
66
). The putting face (
62
) is a plain surface defined to putt a golf ball. The precise putting usually depends on the skill of a player. However, when putting a golf ball, a counteraction force is exerted from the ball to the putting face (
62
) resulting in a torque between the putting point and the shank (
66
) that destroys the adhesive layer in the shank (
62
) and causes the putting face (
62
) to rotate relative to the distal end of the shaft (
50
). A problem of misalignment of the club head (
40
) relative to the shaft (
50
) likely occurs without being perceived by the player so that an error in putting occurs.
Similarly, misalignment of the club head (
70
) of a wood or of the head body (
80
) of an iron (see FIG.
7
and
FIG. 8
) relative to the shaft also occurs. In the case where the oblique of the head is found in a wood, the trajectory of the golf ball hit by such an oblique head will be off-line away from the player instead of being straight.
SUMMARY OF THE INVENTION
The objective of the present invention is to provide a club head assembly for a golf club capable of retaining precise alignment when hitting or putting a golf ball.
To achieve the objective, the club head assembly for a golf club in accordance with the present invention comprises a club head having a face and a longitudinal passage defined therein parallel to the longitudinal axis of the face, and a shaft having a distal end inserted into and fixedly locked in the longitudinal passage.
Other objectives, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 3519271 (1970-07-01), Smith
patent: 3980301 (1976-09-01), Smith
patent: 4697813 (1987-10-01), Inoue
patent: 5197733 (1993-03-01), Schroder
patent: 5632695 (1997-05-01), Hlinka
patent: 5709613 (1998-01-01), Sheraw
patent: 5931741 (1999-08-01), Fenton
patent: 6048275 (2000-04-01), Gedeon
patent: 6080068 (2000-06-01), Takeda

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