U.S. patent application number 11/542146 was filed with the patent office on 2008-04-10 for golf club head structure.
Invention is credited to Motofusa Iwahori.
Application Number | 20080085781 11/542146 |
Document ID | / |
Family ID | 39275383 |
Filed Date | 2008-04-10 |
United States Patent
Application |
20080085781 |
Kind Code |
A1 |
Iwahori; Motofusa |
April 10, 2008 |
Golf club head structure
Abstract
A golf club head consists of a shell part, and a face part; the
shell part has a front opening, a holding hollowness behind the
front opening, several strengthening pieces in the holding
hollowness, and a slot on an upper side, which communicates with
the holding hollowness; the slot of the shell part has several
connecting blocks therein, which are each connected to two lateral
sides of the slot, for increasing capability of the shell part to
bear force; the face part is closely fitted in the front opening of
the shell part, and propped by means of the strengthening pieces in
the holding hollowness; and, a kind of elastic shock absorbing
material is injected in the holding hollowness of the shell part to
prop the face part.
Inventors: |
Iwahori; Motofusa;
(Kaohsiung City, TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
39275383 |
Appl. No.: |
11/542146 |
Filed: |
October 4, 2006 |
Current U.S.
Class: |
473/332 ;
473/342; 473/350 |
Current CPC
Class: |
A63B 53/0454 20200801;
A63B 53/0475 20130101; A63B 53/045 20200801; A63B 53/0416 20200801;
A63B 53/047 20130101; A63B 60/54 20151001 |
Class at
Publication: |
473/332 ;
473/342; 473/350 |
International
Class: |
A63B 53/00 20060101
A63B053/00 |
Claims
1. An improvement on a golf club head structure, comprising a shell
part, the shell part having a front opening, and a holding
hollowness behind the front opening; the shell part having a slot
on one side thereof; the slot communicating with the holding
hollowness; a face part closely fitted and secured in the front
opening of the shell part; and a kind of elastic shock absorbing
material injected in the holding hollowness of the shell part.
2. The improvement on a golf club head structure as recited in
claim 1, wherein the slot of the shell part has a plurality of
connecting blocks therein, which are each connected to two lateral
sides of the slot, for increasing capability of the shell part to
bear force.
3. The improvement on a golf club head structure as recited in
claim 1 further having a plurality of strengthening pieces held in
the holding hollowness of the shell part and propping the face
part.
4. The improvement on a golf club head structure as recited in
claim 1, wherein the elastic shock absorbing material is resin.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the invention
[0002] The present invention relates to a golf club head, more
particularly one, which will help a golfer make a golf ball fly
smoothly, and reduce reaction of the golf ball, thus preventing the
golfer's hands from being subjected to shock, discomfort and
injury.
[0003] 2. Brief Description of the Prior Art
[0004] Referring to FIG. 1, a conventional golf club head consists
of a shell part 91, and a face part 92. The shell part 91 is made
of metallic materials such as stainless steel by means of casting.
The shell part 91 has a front opening 911, a truncated cone shaped
inner circumferential side around the front opening 911, a holding
hollowness 912 behind the front opening 911, and a protruding
portion 913 on an inward portion of the truncated cone shaped inner
circumferential side. The face part 92 is secured in the front
opening 911 of the shell part 91, closely touching the truncated
cone shaped inner circumferential side and being propped by means
of the protruding portion 913.
[0005] The above structure has the following disadvantages:
[0006] 1. Because both the golf club head and golf balls are very
hard, and the club head doesn't have any shock absorbing function,
a golf ball will probably fly non-smoothly and in a wrong direction
even if the golfer swings the golf club to hit the golf ball in a
correct way. In other words, it is relatively difficult to make an
accurate golf shot with the golf club.
[0007] 2. When a golfer hits a golf ball with the golf club, the
reaction of the golf ball on the club will be passed on to and
cause discomfort and even injury to the golfer's hands because the
club head doesn't have any shock absorbing function. In other
words, the golf club isn't relatively safe to use.
SUMMARY OF THE INVENTION
[0008] It is a main object of the invention to provide an
improvement on a golf club head to overcome the above-mentioned
problems.
[0009] The golf club head of the present invention consists of a
shell part, and a face part. The shell part has a front opening, a
holding hollowness behind the front opening, a few strengthening
pieces in the holding hollowness, and a slot on an upper side
thereof, which communicates with the holding hollowness. The shell
part further has several connecting blocks, which are received in
the slot, and each connected to two lateral sides of the slot, for
increasing capability of the club head to bear force. The face part
is closely fitted in the front opening of the shell part, and
propped by means of the strengthening pieces in the holding
hollowness. Furthermore, a kind of elastic shock absorbing material
is injected in the holding hollowness of the shell part to prop the
face part. Because the club head has shock absorbing function with
the elastic shock absorbing material, the golf ball will fly
smoothly if a golfer swings the golf club to hit a golf ball in a
correct way. And, the reaction of the golf ball will be
significantly reduced, prevented from causing discomfort and injury
to the golfer's hands.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The present invention will be better understood by referring
to the accompanying drawings, wherein:
[0011] FIG. 1 is an exploded perspective view of the prior art,
[0012] FIG. 2 is an exploded perspective view of the present
invention,
[0013] FIG. 3 is a horizontal sectional view of the present
invention, and
[0014] FIG. 4 is a vertical sectional view of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0015] Referring to FIGS. 2 to 4, a preferred embodiment of a head
of a golf club consists of a shell part 1, and a face part 2. The
shell part 1 is made of metallic materials, e.g. stainless steel,
by means of casting. The shell part 1 has a front opening 11, a
truncated cone shaped inner circumferential side around the front
opening 11, a holding hollowness 12 behind the front opening 11,
and a protruding portion 13 on an inward end of the truncated cone
shaped inner circumferential side. Furthermore, the shell part 1
has a slot 14 on an upper side thereof, which communicates with the
holding hollowness 12. The slot 14 has several connecting blocks 15
therein, which are each connected to two lateral sides of the slot
14. A few strengthening pieces 16 are held in the holding
hollowness 12. Therefore, the upper portion of the club head, on
which the slot 14 and the connecting blocks 15 are provided, can
bear more force, preventing damage and deformation to the club head
if the golf club head collides with a golf ball at the upper
portion.
[0016] The face part 2 is secured in the front opening 11 of the
shell part 1, closely touching the truncated cone shaped inner
circumferential side and being propped by means of the protruding
portion 13 as well as the strengthening pieces 16. Furthermore, a
kind of elastic shock absorbing material 3, e.g. resin, is injected
in the holding hollowness 12 of the shell part 1 through the slot
14 so that the holding hollowness 12 is filled with the shock
absorbing material 3, and the face part 2 is propped by the shock
absorbing material 3. Finally, the shell part 1 is polished, and
joined to a shaft part of the golf club.
[0017] From the above description, it can be seen that the present
invention has the following advantages over the prior art:
[0018] 1. It will be easier to make a golf ball fly smoothly and in
the correct direction with the golf club of the present invention
because the club head is filled with a shock absorbing material. In
other words, there is more chance of a golfer making a good shot
with the golf club of the present invention.
[0019] 2. Because the club head of the present invention is filled
with a shock absorbing material, which also props the face part of
the club head, a large proportion of the reaction of a golf ball
will be absorbed by means of the shock absorbing material when the
club heads collides with the golf ball, thus preventing discomfort
and injury to the golfer's hands.
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