U.S. patent application number 11/735581 was filed with the patent office on 2008-10-16 for golf club head.
Invention is credited to Chon-Chen LIN, Chin-Lung LIU, Tieh-Lung TANG.
Application Number | 20080254912 11/735581 |
Document ID | / |
Family ID | 39854246 |
Filed Date | 2008-10-16 |
United States Patent
Application |
20080254912 |
Kind Code |
A1 |
LIN; Chon-Chen ; et
al. |
October 16, 2008 |
GOLF CLUB HEAD
Abstract
A golf club head includes a metal head body and a non-metal
tubular member. The metal head body includes a hollow body portion
having a bottom plate, and a neck connected integrally to the
hollow body portion and opposite to the bottom plate. The neck has
an outer open end, and an integral inner tubular part extending
into the hollow body portion from the outer open end. The non-metal
tubular member extends within the hollow body portion, and has a
top portion connected to the neck and a bottom portion connected to
the bottom plate of the hollow body portion.
Inventors: |
LIN; Chon-Chen; (Ping-Tung
Hsien, TW) ; LIU; Chin-Lung; (Ping-Tung Hsien,
TW) ; TANG; Tieh-Lung; (Ping-Tung Hsien, TW) |
Correspondence
Address: |
OSTROLENK FABER GERB & SOFFEN
1180 AVENUE OF THE AMERICAS
NEW YORK
NY
100368403
US
|
Family ID: |
39854246 |
Appl. No.: |
11/735581 |
Filed: |
April 16, 2007 |
Current U.S.
Class: |
473/346 ;
473/305 |
Current CPC
Class: |
A63B 2209/02 20130101;
A63B 2209/00 20130101; A63B 53/02 20130101; A63B 53/0466 20130101;
A63B 53/0433 20200801 |
Class at
Publication: |
473/346 ;
473/305 |
International
Class: |
A63B 53/04 20060101
A63B053/04 |
Claims
1. A golf club head, comprising: a metal head body including a
hollow body portion having a bottom plate, and a neck connected
integrally to said hollow body portion and opposite to said bottom
plate, said neck having an outer open end, and an integral inner
tubular part extending into said hollow body portion from said
outer open end; and a non-metal tubular member extending within
said hollow body portion, and having a top portion connected to
said neck and a bottom portion connected to said bottom plate of
said hollow body portion.
2. The golf cub head as claimed in claim 1, wherein said inner
tubular part has a bottom end within said hollow body portion, said
top portion of said non-metal tubular member having a top end
abutting against said bottom end of said inner tubular part.
3. The golf club head as claimed in claim 1, wherein said inner
tubular part is sleeved around said top portion of said non-metal
tubular member, said top portion of said non-metal tubular member
having an annular flange extending outwardly from said non-metal
tubular member and sitting on said outer open end of said neck.
4. The golf club head as claimed in claim 1, wherein said non-metal
tubular member is made of a carbon fiber reinforced material.
5. A golf club, comprising: a golf club head including: a metal
head body including a hollow body portion having a bottom plate,
and a neck connected integrally to said hollow body portion and
opposite to said bottom plate, said neck having an outer open end,
and an integral inner tubular part extending into said hollow body
portion from said outer open end, and a non-metal tubular member
extending within said hollow body portion, and having a top portion
connected to said neck and a bottom portion connected to said
bottom plate of said hollow body portion; and a shaft having an end
portion extending fittingly into said non-metal tubular member.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a golf club head, more particularly
to a golf club head, the center of gravity of which is lowered.
[0003] 2. Description of the Related Art
[0004] A conventional method for fabricating a golf club head
includes a front processing stage and a rear processing stage. The
front processing stage involves precision casting technology, and
includes the steps of mold-making, wax injection, hanging, dipping,
dewaxing, casting, cutting, heat treating, etc. A golf club head
blank made via the front processing stage is further processed via
the rear processing stage, which is a semi-automatic mechanical
processing technique, and which includes the steps of surface
grinding, washing, lacquering, punching, embedding, assembling,
torque testing, polishing, etc., so as to obtain a golf club head
product.
[0005] Referring to FIG. 1, a conventional golf club head blank 1
made via the aforesaid front processing stage includes a hollow
head body 11 and a shaft-connecting neck 12 extending upwardly from
a top side of the hollow head body 11 for connecting to a shaft 3
of a golf club. Since the shaft-connecting neck 12 and the hollow
head body 11 are made integrally from metal via casting, the
requirements for the configuration of the hollow head body 11 and
the length and inclining angle of the shaft-connecting neck 12
should be considered and controlled precisely when making a mold
for casting the golf club head blank 1. Therefore, the procedure
for making the conventional gold club head blank 1 is relatively
complicated and difficult. Furthermore, since the shaft-connecting
neck 12 extends upwardly from the top side of the hollow head body
11, the gravity center of a golf club head made thereby is
relatively high. Therefore, the trajectory of a stricken golf ball
is relatively low, and the back spin of the stricken golf ball is
relatively high. It is difficult to strike a high flying golf ball
using such a golf club head.
SUMMARY OF THE INVENTION
[0006] Therefore, the object of the present invention is to provide
a golf club head, which can be made relatively easily, and the
center of gravity of which is lowered effectively.
[0007] Accordingly, in one aspect of this invention, a golf club
head includes a metal head body and a non-metal tubular member. The
metal head body includes a hollow body portion having a bottom
plate, and a neck connected integrally to the hollow body portion
and opposite to the bottom plate. The neck has an outer open end,
and an integral inner tubular part extending into the hollow body
portion from the outer open end. The non-metal tubular member
extends within the hollow body portion, and has a top portion
connected to the neck and a bottom portion connected to the bottom
plate of the hollow body portion.
[0008] In another aspect of this invention, a golf club includes a
golf club head and a shaft. The golf club head includes a metal
head body and a non-metal tubular member. The metal head body
includes a hollow body portion having a bottom plate, and a neck
connected integrally to the hollow body portion and opposite to the
bottom plate. The neck has an outer open end, and an integral inner
tubular part extending into the hollow body portion from the outer
open end. The non-metal tubular member extends within the hollow
body portion, and has a top portion connected to the neck and a
bottom portion connected to the bottom plate of the hollow body
portion. The shaft has an end portion extending fittingly into the
non-metal tubular member.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] 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:
[0010] FIG. 1 is a schematic partly sectional view of a
conventional golf club head blank;
[0011] FIG. 2 is a schematic partly sectional view of a first
preferred embodiment of a golf club head according to this
invention; and
[0012] FIG. 3 is a schematic partly sectional view of a second
preferred embodiment of a golf club head according to this
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] 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.
[0014] Referring to FIG. 2, the first preferred embodiment of a
golf club head 2 according to this invention is shown to include a
metal head body 21, and a non-metal tubular member 22 for fitting a
shaft 4 thereinto. The metal head body 21 includes a hollow body
portion 211 having a bottom plate 214, and a neck 210 connected
integrally to the hollow body portion 211 and opposite to the
bottom plate 214. The neck 210 has an outer open end 213, and an
integral inner tubular part 212 extending into the hollow body
portion 211 from the outer open end 213. The non-metal tubular
member 22 extends within the hollow body portion 211, and has a top
portion 221 connected to the neck 210 and a bottom portion 222
connected to the bottom plate 214 of the hollow body portion 211.
The inner tubular part 213 has a bottom end 215 within the hollow
body portion 211. The top portion 221 of the non-metal tubular
member 22 has a top end 223 abutting against the bottom end 215 of
the inner tubular part 212. In the preferred embodiment, the
non-metal tubular member 22 is made of a carbon fiber reinforced
material.
[0015] In making the golf club head 2, the non-metal tubular member
22 is positioned in a wax mold (not shown) for making a blank of
the metal head body 21. A front processing stage, which includes
the steps of mold-making, wax injection, hanging, dipping,
dewaxing, casting, cutting, heat treating, etc, is then proceeded
to make a semi-product of the golf club head 2 composed of the
non-metal tubular member 22 and the blank of the metal head body
21. The semi-product further undergoes a rear processing stage,
which includes the steps of surface grinding, washing, lacquering,
punching, embedding, assembling, torque testing, polishing, etc.,
to obtain the golf club head 2.
[0016] The non-metal tubular member 22 cooperates with the inner
tubular part 212 of the neck 210 to define a receiving space 216
for fitting a lower end portion 41 of the shaft 4 thereinto.
[0017] In view of the aforesaid, the non-metal tubular member 22 is
provided separately, and is bonded to the metal head body 21 after
casting so as to make the golf club head 2. Therefore, it is not
necessary to be concerned about the requirements for the prior art.
Furthermore, the inner tubular part 212 extends downwardly into the
hollow body portion 211 from the outer open end 213, and the
non-metal tubular member 22 is made of a non-metal material, such
as a carbon fiber reinforced material. Therefore, the center of
gravity of the golf club head 2 can be lowered, and the overall
weight of the golf club head 2 can be reduced.
[0018] Referring to FIG. 3, the second preferred embodiment of a
golf club head 2 according to this invention is shown to be similar
to the first preferred embodiment except that the inner tubular
part 212 of the neck 210 is sleeved around the top portion 221 of
the non-metal tubular member 22. The top portion 221 of the
non-metal tubular member 22 has an annular flange 224 extending
outwardly from the non-metal tubular member 22 and sitting on the
outer open end 213 of the neck 210. In the preferred embodiment,
the receiving space 216 for fitting the lower end portion 41 of the
shaft 4 is defined by the non-metal tubular member 22.
[0019] 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.
* * * * *