Upright bent edge structure of a striking plate for combing with a golf club head body
A golf club head includes a golf club head body, a striking plate and a connecting portion. The golf club head body provides with an assembling recession at its front side. The striking plate provides with a main plate, an upright bent edge and a support wall to constitute a U-shaped or L-shaped configuration that can increase elastic deformation of the striking plate. In assembling, the support wall of the striking plate is initially inserted into the assembling recession of the golf club head body. The connection portion is located between the golf club head body and the striking plate, and securely connects the striking plate with the golf club head body.
1. Field of the Invention
The present invention relates to an upright bent edge structure of a striking plate for combining with a golf club head body. More particularly, the present invention relates to a U-shaped or L-shaped bent edge structure of a striking plate employing a connecting portion adapted to combine the striking plate with a golf club head body. Thereby, the upright bent edge structure of the striking plate enhances striking characteristic and connecting quality for different metals.
2. Description of the Related Art
Two conventional connecting methods for combining a striking plate with a golf club head is disclosed in Taiwanese Patent Publication Nos. 469,143 and 552,988.
First, TWN469143 discloses a golf club head body and a striking plate connected thereto. The golf club head body includes an assembling recession at its front side. In assembling, the assembling recession of the golf club head body accommodates the striking plate to constitute a golf club head. Before inserting the striking plate, a brazing material is initially inserted into the assembling recession of the golf club head body for braze welding. Once the striking plate is inserted into the assembling recession, the brazing material is sandwiched in between the striking plate and the golf club head body. Subsequently, the brazing material is heated and hardened that the striking plate securely connects to the golf club head body.
On the one hand the braze welding process for the golf club head may increase manufacture cost, and on the other hand it may deteriorate elastic deformation of the striking plate due to directly connecting an annular edge of the striking plate to an inner edge of the assembling recession. Accordingly, it is important that striking characteristic of the golf club head, disclosed in TWN469143, may be poor.
Second, TWN552988 also discloses a golf club head body and a striking plate connected thereto. The golf club head body includes an assembling recession and a shoulder thereof. Correspondingly, the striking plate integrally forms a bent edge and an annular wall. In assembling, a bottom portion of the annular wall of the striking plate connects to the shoulder of the assembling recession of the golf club head body to constitute a golf club head. The annular wall of the striking plate welds to the shoulder of the assembling recession of the golf club head body. Due to the bent edge and the annular wall, the striking plate not only accomplishes to enlarge a maximum striking area thereof but also to obtain a maximum elastic deformation thereof while striking. Accordingly, it is suitable to use for a longer striking distance.
However, there exist several drawbacks of golf club head disclosed in TWN552988. Structurally, a connection portion between the golf club head body and the striking plate is extended and changed in two or three dimensions. Accordingly, an automatically welding process must be run in three dimensions for welding the striking plate to the golf club head body. Consequently, it may sophisticate a welding machine for positioning the combination of the striking plate and the golf club head body. Also, it may cause the welding machine a specific deviation for positioning the golf club head and result in a large number of unqualified golf club heads in manufacture.
Furthermore, the striking plate and the golf club head body disclosed in TWN552988 must be made of different metals with welding-compatibility that is suitable for high-energy welding or gas tungsten arc welding. Namely, if the striking plate and the golf club head body are made of different metals with poor welding-compatibility, stainless steel and titanium alloy for example, it cannot use an inexpensive welding method other than a costly braze welding method. In addition, there is no other combination method for the bent edge structure of the striking plate for combining with the golf club head.
Furthermore, the structure of the striking plate disclosed in TWN552988 has a single pattern that is only suitable for assembling with one single pattern of the golf club head body. Hence, there is a need for a universal pattern of the striking plate for various golf club head bodies of major manufacturers. To accomplish this task, it is necessary that welding quality of the striking plate must be improved.
The present invention intends to provide a U-shaped or L-shaped bent edge structure of a striking plate employing a connecting portion for combining the striking plate with a golf club head body. The golf club head body provides with an assembling recession to accommodate the striking plate in such a way to mitigate and overcome the above problem.
SUMMARY OF THE INVENTIONThe primary objective of this invention is to provide an upright bent edge structure of a striking plate for combining with an assembling recession of a golf club head body. The striking plate employs a connecting portion corresponding to the upright bent edge structure for increasing design choice.
The secondary objective of this invention is to provide the upright bent edge structure of the striking plate for combining with the golf club head body. The striking plate forms a U-shaped or L-shaped bent edge structure for increasing elastic deformation of the striking plate that can increase a striking distance of the golf club head.
The third objective of this invention is to provide the upright bent edge structure of the striking plate for combining with the golf club head body. The striking plate further includes a thickness-adjusting portion corresponding to a sweet spot for adjusting a degree of elastic deformation while striking golf ball.
The golf club head in accordance with the present invention includes a golf club head body, a striking plate and a connecting portion. The golf club head body provides with an assembling recession at its front side. The striking plate provides with a main plate, an upright bent edge and a support wall to constitute a U-shaped or L-shaped configuration that can increase elastic deformation of the striking plate. In assembling, the support wall of the striking plate is initially inserted into the assembling recession of the golf club head body. The connection portion is located between the golf club head body and the striking plate, and securely connects the striking plate with the golf club head body.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description and the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGSThe present invention will now be described in detail with reference to the accompanying drawings wherein:
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The golf club head body 1 further includes a heel portion as indicated at region “a” and a toe portion as indicated at region “b”. The term “heel portion” defines an end proximate the hosel 12 and the term “toe portion” defines an end beyond the hosel 12.
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A press machine (not shown) presses the engaging protrusion 13 of the golf club head body 1 to fill the filling space (c) of the striking plate 2 that forms a connecting portion 3 of the golf club head adjacent to the support wall 22 of the striking plate 2. The connecting portion 3 results in the support wall 22 of the striking plate 1 to tightly engage with the shoulder 111 of the golf club head body 1. After the pressing step, a precision finishing is applied to the golf club head to remove remaining burrs. In striking golf ball, since the support wall 22 tightly engages with the shoulder 111 of the golf club head body 1, the striking plate 2 can prevent from cracking due to stress concentration. Furthermore, the striking plate 2 can perform excellent striking characteristic for a longer striking distance due to the U-shaped or L-shaped configuration.
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The connecting portion 4 performs excellent welding-compatibility for different metals and suitable for an inexpensive welding method of GTAW. In striking golf ball, since the support wall 22 tightly engages with the shoulder 111 of the golf club head body 1, the striking plate 2 can prevent from cracking due to stress concentration. Furthermore, in this embodiment the striking plate 2 can perform excellent striking characteristic for a longer striking distance due to the U-shaped or L-shaped configuration.
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The connecting portion 5 can increase connection reliability of the golf club head body 1 with the striking plate 2. Furthermore, in this embodiment the striking plate 2 can perform excellent striking characteristic for a longer striking distance due to the U-shaped or L-shaped configuration.
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Although the invention has been described in detail with reference to its presently preferred embodiment, it will be understood by one of ordinary skill in the art that various modifications can be made without departing from the spirit and the scope of the invention, as set forth in the appended claims.
Claims
1. A golf club head comprising:
- a golf club head body including an assembling recession at its front side, and a hosel;
- a striking plate adapted to connect to the assembling recession of the golf club head body, the striking plate further including at least one upright bent edge and at least one support wall engaging with the assembling recession of the golf club head body; and
- a connecting portion located between the golf club head body and the striking plate adjacent to the support wall;
- wherein said connecting portion securely connects the striking plate with the golf club head body;
- wherein said support wall correspondingly adjacent to the connecting portion increase elastic deformation of the striking plate while striking golf ball.
2. The golf club head as defined in claim 1, wherein the assembling recession of the golf club head body includes a shoulder adapted to engage with the support wall of the striking plate.
3. The golf club head as defined in claim 1, wherein the striking plate includes a notch located between two ends of the support wall.
4. The golf club head as defined in claim 3, wherein the notch has a position selectively formed proximate a heel portion, proximate a toe portion, or extending from a heel portion to a toe portion.
5. The golf club head as defined in claim 4, wherein the support wall is formed on a sole portion, a top portion, a heel portion or a toe portion of the striking plate.
6. The golf club head as defined in claim 1, wherein the connecting portion is made from a connecting structure by means of pressing.
7. The golf club head as defined in claim 6, wherein the upright bent edge of the striking plate includes an engaging groove to form a filling space, and the golf club head body correspondingly includes an engaging protrusion which is pressed to fill into the filling space of the engaging groove to constitute the connecting portion.
8. The golf club head as defined in claim 1, wherein the connecting portion is welded by gas tungsten arc welding.
9. The golf club head as defined in claim 8, wherein the upright bent edge of the striking plate includes a first inclined surface, and the golf club head body correspondingly includes a second inclined surface that the first inclined surface and the second inclined surface commonly form a filling space for filling welding material.
10. The golf club head as defined in claim 1, wherein the connecting portion is welded by laser welding or high-energy welding.
11. The golf club head as defined in claim 1, wherein the connecting portion is welded by braze welding.
12. The golf club head as defined in claim 11, wherein the assembling recession of the striking plate includes a shoulder and a barrier thereof, the barrier positions the support wall of the striking plate.
13. The golf club head as defined in claim 1, wherein the striking plate includes a thickness-adjusting portion corresponding to a sweet spot for adjusting a degree of elastic deformation while striking golf ball, the thickness-adjusting portion has a relatively thicker thickness with respect to that of the striking plate.
14. The golf club head as defined in claim 1, wherein wherein the striking plate includes a thickness-adjusting portion corresponding to a sweet spot for adjusting a degree of elastic deformation while striking golf ball, the thickness-adjusting portion has a relatively thinner thickness with respect to that of the striking plate.
Type: Application
Filed: Sep 8, 2004
Publication Date: Mar 9, 2006
Inventor: Wen-Ching Hou (Kaohsiung)
Application Number: 10/935,085
International Classification: A63B 53/04 (20060101);