U.S. patent application number 11/502861 was filed with the patent office on 2008-02-14 for striking plate for a golf club head.
Invention is credited to Yen-Chi Hsu, Shun-Fu Hu, Chon-Chen Lin.
Application Number | 20080039230 11/502861 |
Document ID | / |
Family ID | 39051490 |
Filed Date | 2008-02-14 |
United States Patent
Application |
20080039230 |
Kind Code |
A1 |
Lin; Chon-Chen ; et
al. |
February 14, 2008 |
Striking plate for a golf club head
Abstract
A striking plate of a golf club head includes a plate body, a
plurality of parallel elongate grooves formed in a surface of the
plate body and each having a groove bottom, and a plurality of
protrusions projecting from the groove bottom of each of the
grooves and spaced apart from each other along the groove
bottom.
Inventors: |
Lin; Chon-Chen; (Nei-Pu
Hsiang, TW) ; Hu; Shun-Fu; (Nei-Pu Hsiang, TW)
; Hsu; Yen-Chi; (Nei-Pu Hsiang, TW) |
Correspondence
Address: |
CHRISTIE, PARKER & HALE, LLP
PO BOX 7068
PASADENA
CA
91109-7068
US
|
Family ID: |
39051490 |
Appl. No.: |
11/502861 |
Filed: |
August 11, 2006 |
Current U.S.
Class: |
473/342 |
Current CPC
Class: |
A63B 53/047 20130101;
A63B 53/04 20130101; A63B 53/0445 20200801; A63B 53/0416 20200801;
A63B 60/00 20151001 |
Class at
Publication: |
473/342 |
International
Class: |
A63B 53/00 20060101
A63B053/00 |
Claims
1. A striking plate for a golf club head, comprising: a plate body;
a plurality of parallel elongate first grooves formed in a surface
of said plate body and each having a groove bottom; and a plurality
of protrusions projecting from said groove bottom of each of said
first grooves and spaced apart from each other along said groove
bottom.
2. The striking plate as claimed in claim 1, wherein each of said
first grooves has a depth larger than a height of each of said
protrusions.
3. The striking plate as claimed in claim 1, wherein each of said
first grooves further has two opposite groove walls, said groove
bottom bridging said groove walls, each of said groove walls having
a stepped surface.
4. The striking plate as claimed in claim 1, further comprising at
least an elongate second groove formed between two adjacent ones of
said first grooves and having a depth smaller than that of said
first grooves.
5. The striking plate as claimed in claim 4, wherein said second
groove has a width smaller than that of said first grooves.
6. The striking plate as claimed in claim 1, wherein said
protrusions are arranged in a row along each of said first
grooves.
7. The striking plate as claimed in claim 1, wherein each of said
protrusions has a substantially rectangular cross section.
8. The striking plate as claimed in claim 1, wherein each of said
protrusions has a substantially circular cross section.
9. The striking plate as claimed in claim 1, wherein each of said
protrusions has an oval cross section.
10. The striking plate as claimed in claim 1, wherein each of said
protrusions has a substantially X-shaped cross section.
11. The striking plate as claimed in claim 1, wherein each of said
protrusions tapers upwardly from said groove bottom of a
corresponding one of said first grooves.
12. The striking plate as claimed in claim 1, wherein said
protrusions are arranged in two rows along each of said first
grooves.
13. The striking plate as claimed in claim 12, wherein said
protrusions in one of said two rows are staggered relative to said
protrusions in the other one of said two rows.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a striking plate for a golf club
head, more particularly to a striking plate for a golf club head
having an increased friction coefficient.
[0003] 2. Description of the Related Art
[0004] Referring to FIGS. 1 and 2, a conventional golf club head 1
includes a head body 11 and a striking plate 12 bonded to the head
body 11. The striking plate 12 includes a plurality of parallel
elongate grooves 121 formed in a surface of the striking plate 12.
When the striking plate 12 strikes a golf ball (not shown), the
elongate grooves 121 can provide the striking plate 12 with a
relatively high friction coefficient so as to control the traveling
direction of the stricken golf ball.
[0005] It is desirable in the art to further increase the friction
coefficient of the striking plate 12 so as to further improve the
direction controllability of the striking plate 12.
SUMMARY OF THE INVENTION
[0006] Therefore, the object of the present invention is to provide
a striking plate for a golf club head which is increased in its
friction coefficient.
[0007] Accordingly, a striking plate of a golf club head of this
invention includes a plate body, a plurality of parallel elongate
grooves formed in a surface of the plate body and each having a
groove bottom, and a plurality of protrusions projecting from the
groove bottom of each of the grooves and spaced apart from each
other along the groove bottom.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Other features and advantages of the present invention will
become apparent in the following detailed description of the
preferred embodiments with reference to the accompanying drawings,
of which:
[0009] FIG. 1 is an exploded perspective view illustrating a
conventional striking plate used in a golf club head;
[0010] FIG. 2 is a sectional view of the golf club head of FIG.
1;
[0011] FIG. 3 is an exploded perspective view illustrating a first
preferred embodiment of a striking plate according to this
invention, which is used in a golf club head;
[0012] FIG. 4 is a sectional view of the golf club head of FIG.
3;
[0013] FIGS. 5, 6, 7, 8, 9, and 10 are fragmentary schematic views
illustrating various geometries of protrusions suitable for the
first preferred embodiment;
[0014] FIG. 11 is a fragmentary sectional view illustrating a
second preferred embodiment of a striking plate according to this
invention, which is used in a golf club head; and
[0015] FIG. 12 is a fragmentary sectional view illustrating a third
preferred embodiment of a striking plate according to this
invention, which is used in a golf club head.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] Before the present invention is described in greater detail,
it should be noted that like elements are denoted by the same
reference numerals throughout the disclosure.
[0017] Referring to FIGS. 3 and 4, the first preferred embodiment
of a striking plate 22 according to this invention is shown to be
mounted on a head body 21 so as to make a golf club head 2. The
striking plate 22 includes a plate body 221, a plurality of
parallel elongate first grooves 222, and a plurality of protrusions
223. The first grooves 222 are formed in a surface of the plate
body 221. Each of the first grooves 222 has a groove bottom 2221.
The protrusions 223 project from the groove bottom 2221 of each of
the first grooves 222 and are spaced apart from each other along
the groove bottom 2221. Each of the first grooves 222 has a depth
larger than a height of each of the protrusions 223. The
protrusions 223 are arranged in a row along each of the first
grooves 222, and each of the protrusions 223 tapers upwardly from
the groove bottom 2221 of a corresponding one of the first grooves
222.
[0018] In view of the aforesaid, since the friction coefficient of
the striking surface of the striking plate 22 can be increased by
providing the protrusions 223 in the first grooves 222 of the
striking plate 22, the direction controllability of the striking
plate 221 can be improved.
[0019] Referring to FIGS. 5, 6, 7, 8, 9, and 10, it should be noted
the geometries of the protrusions 223 can be various suitable
shapes, such as a substantially rectangular cross section, a
substantially circular cross section, an oval cross section, or a
substantially X-shaped cross section. It will be appreciated that
the aforesaid list is not exhaustive, and that the present
invention encompasses the protrusions 223 having any suitable
geometries.
[0020] Specifically referring to FIGS. 8 and 9, the protrusions 223
can be arranged in two rows along each of the first grooves 222,
and the protrusions 223 in one of the two rows are staggered
relative to the protrusions 223 in the other one of the two rows.
Of course, the protrusions 223 can be arranged in more than two
rows along each of the first grooves 222.
[0021] The protrusions 223 can be formed by laser engraving or by
using an engraving machine for preliminary engraving followed by
laser engraving for refining engraving.
[0022] Referring to FIG. 11, the second preferred embodiment of a
striking plate 22 according to this invention is shown to be
similar to the first preferred embodiment except that each of the
first grooves 222 further has two opposite groove walls 2222. The
groove bottom 2221 bridges the groove walls 2222. Each of the
groove walls 2222 has a stepped surface. Therefore, the friction
coefficient of the striking surface of the striking plate 22 can be
further increased by the groove walls 2222.
[0023] Referring to FIG. 12, the third preferred embodiment of a
striking plate 22 according to this invention is shown to be
similar to the first preferred embodiment except that the striking
plate 22 further includes a plurality of elongate second grooves
224 formed between two adjacent ones of the first grooves 222. Each
of the second grooves 224 has a depth smaller than that of the
first grooves 222, and has a width smaller than that of the first
grooves 222. The friction coefficient of the striking surface of
the striking plate 22 can also be increased further by the second
grooves 224.
[0024] While the present invention has been described in connection
with what are considered the most practical and preferred
embodiments, it is understood that this invention is not limited to
the disclosed embodiments but is intended to cover various
arrangements included within the spirit and scope of the broadest
interpretation so as to encompass all such modifications and
equivalent arrangements.
* * * * *