Games using tangible projectile – Golf – Club or club support
Reexamination Certificate
2003-01-03
2004-08-24
Chiu, Raleigh W. (Department: 3711)
Games using tangible projectile
Golf
Club or club support
C473S345000
Reexamination Certificate
active
06780124
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a golf club head for welding. In particular, the present invention relates to a golf club head that allows easy examination of the position of the striking plate.
2. Description of the Related Art
Conventional tungsten inert gas arc welding (so-called “TIG”) for welding a striking plate to a golf club head has gradually been replaced by high energy welding such as laser beam welding (LBW) and plasma arc welding (PAW). The structure of the golf club head is modified in response to the change of the welding method.
FIG. 1
of the drawings is a sectional view of a conventional golf club head body and a striking plate suitable for high energy welding.
FIG. 2
is an enlarged view of a circled portion in FIG.
1
. Designs of the golf club head body
10
and the striking plate
20
are based on the characteristics of concentration and penetration of thermal energy for carrying out welding. Generally, the golf club head body
10
includes an opening
11
in a front side thereof and a flange
12
formed on the front side and extending along an outer peripheral edge defining the opening
11
. A gap less than 1 mm is left between the golf club head body
10
and the striking plate
20
when the striking plate
20
is mounted into the opening
11
of the golf club head body
10
. With such a structure, high energy welding is carried out, which melts the flange
12
to provide connecting material
13
that connects the striking plate
20
to the golf club head body
10
. Although the structures of the golf club head body
10
and the striking plate
20
are suitable for high energy welding due to the advantages of small welding width, greater welding depth, and better welding quality, the striking plate
20
is apt to deviate from a general plane on which the opening
12
lies before the first welding procedure (i.e., point welding) and the subsequent high energy welding. This is because the gap (i.e., tolerance) between the golf club head body
10
and the striking plate
20
is so small that the striking plate
20
is apt to incline inward or outward or shift relative to the golf club head body
10
. As a result, the resultant golf club head would be a disqualified one if the deviation of the striking plate
20
is not corrected before the welding procedure.
SUMMARY OF THE INVENTION
An object of the present invention to provide a golf club head that includes a plurality of engaging notches, and a plurality of supporting rods are provided on the striking plate. When the striking plate is inserted into the opening of the golf club head, the supporting rods on the striking plate are inserted into the engaging notches. Thus, the striking plate is precisely positioned after the first welding procedure and before the high energy welding. The assembly convenience is improved, and the welding procedure is simplified.
Another object of the present invention is to provide a plurality of examining notches on the flange to allow a worker to examine the position of the striking plate in the opening of the golf club head after the first welding procedure and before the high energy welding.
A further object of the present invention is to provide an inclined face on an outer side of the flange such that the flange that is molten during the high energy welding flows into a gap between the striking plate and the golf club head body, thereby improving the welding quality and the welding strength.
A golf club head in accordance with the present invention includes a golf club head body and a striking plate. The golf club head body has an opening on a front side thereof, with a flange being formed on the front side and extending along an outer peripheral edge defining the opening. A plurality of engaging notches are defined in the flange. The striking plate has a plurality of supporting rods. Each supporting rod is engaged in an associated one of the engaging notches when the striking plate is inserted into the opening of the golf club head body to thereby support the striking plate and to thereby position the striking plate in the opening of the golf club head body before high energy welding.
Other objects, specific advantages, and novel features of the invention will become more apparent from the following detailed description and preferable embodiments when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 5303922 (1994-04-01), Lo
patent: 5536006 (1996-07-01), Shieh
patent: 5564994 (1996-10-01), Chang
patent: 5709615 (1998-01-01), Liang
patent: 5713800 (1998-02-01), Su
patent: 6238302 (2001-05-01), Helmstetter et al.
patent: 6273832 (2001-08-01), Helmstetter et al.
patent: 6299549 (2001-10-01), Shieh
patent: 6328661 (2001-12-01), Helmstetter et al.
patent: 6336869 (2002-01-01), Hettinger et al.
patent: 6632391 (2003-10-01), Helmstetter et al.
Bacon & Thomas PLLC
Chiu Raleigh W.
Fu Sheng Industrial Co., Ltd.
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