US20080085781A1

US20080085781A1 - Golf club head structure

Info

Publication number: US20080085781A1
Application number: US11/542,146
Authority: US
Inventors: Motofusa Iwahori
Original assignee: SWING SCIENCE CO Ltd
Current assignee: SWING SCIENCE CO Ltd
Priority date: 2006-10-04
Filing date: 2006-10-04
Publication date: 2008-04-10

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.

Description

BACKGROUND OF THE INVENTION

1. Field of the invention
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.
2. Brief Description of the Prior Art
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.
The above structure has the following disadvantages:
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.
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

It is a main object of the invention to provide an improvement on a golf club head to overcome the above-mentioned problems.
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

The present invention will be better understood by referring to the accompanying drawings, wherein:

FIG. 1 is an exploded perspective view of the prior art,

FIG. 2 is an exploded perspective view of the present invention,

FIG. 3 is a horizontal sectional view of the present invention, and

FIG. 4 is a vertical sectional view of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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.
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.
From the above description, it can be seen that the present invention has the following advantages over the prior art:
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.
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.

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.