JPH0241004Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field of the invention] The invention involves forming each surface of a metal golf club by pressing, welding the edges of each surface to integrate, and then This invention relates to a golf club head into which a shaft is inserted.

[Prior art and the problem to be solved by the invention] As a prior art in which each part of a metal golf club head is manufactured by pressing and welded together, there is a golf club head disclosed in Japanese Patent Publication No. 53-40380. , the golf club disclosed in Publication No. 53-2683,
A method for manufacturing an iron club head is known from Japanese Patent Publication No. 39-21878.

In Japanese Patent Publication No. 53-40380, it consists of a hollow body whose lower surface is almost entirely open and a sole that is fixed to the body, but the loft angle is constant because the body is integrally molded. It becomes an angle. However, various loft angles are required for the golf club head depending on the height, weight, and experience of the golfer. Therefore, there is a technical problem in that the loft angle cannot be manufactured and adjusted in the case where the main body, especially the face, is integrally molded.

Further, in the golf club head disclosed in Japanese Utility Model Publication No. 53-2683, the end of the shaft insertion hole of the hollow head is formed into a square hole, and as the shaft is inserted, the end is expanded and fixed to the inner wall of the head. As for golf clubs, in such an integral shaft mounting structure, the face progression, that is, the distance between the center line of the shaft and the face surface, is constant, and the face progression is constant, and as in the former publication, each It is not possible to provide a golf club head that is optimal for golfers.

Furthermore, in Japanese Patent Publication No. 39-21878, a shell having a sole and a half-split neck part is formed from a plate material with the face surface open, and the face plate having the half-split neck part is aligned with the half-split neck part. and
The lower end of the shaft is inserted into this neck, but such a head has a problem in that it is difficult to adjust the loft etc. because the insertion length of the shaft is short.

Therefore, an object of the present invention is to provide a metal golf club head that can accurately adjust the lie angle of the shaft, the loft angle of the face, etc.

[Means for Solving the Problems] The present invention has a face surface, an upper surface having a semi-cylindrical portion on one side, and a cylindrical-shaped portion formed on one side of the sole portion as a pair with the semi-cylindrical portion of the upper surface. The head main body, which is made up of three members on the side circumferential part with a semi-cylindrical part constituting the neck part, is integrally joined together with the shaft, and the tip of the horizontal rod part attached to the approximate center of the sole part is attached to the side part, which is approximately the same as the face surface. An L-shaped rib with a vertical rod part attached to the center is installed inside, the upper end is fixed to the neck part, and the lower end is fixed to the sole part to provide a guide pipe for attaching the shaft. The thickness is greater than that of the upper surface.

[Function] When the face surface, the upper surface, the side circumference, the guide pipe, and the shaft are joined together, the desired lie angle, loft angle, etc. are accurately formed, and the thickness of the sole is made thicker than the upper surface. Therefore, the head can have a low center of gravity structure.

[Example] Next, an example of the present invention will be described based on the accompanying drawings.

As shown in FIGS. 1 and 2, the hollow head is constructed by welding and integrating three edges: a face 1, a main body 2 having a side periphery 2a and a sole 2b, and an upper surface 3. These three bodies are formed by pressing metal plates such as stainless steel plates, and each has a vertical rod portion welded to approximately the center of the back surface of the face surface 1 and approximately the center of the upper surface of the sole portion 2b for reinforcement. An L-shaped rib 4 having a horizontal rod portion 4a and a horizontal rod portion 4b is provided. The neck 5 of the hollow head has a semi-cylindrical part 2c connected upwardly on the heel side of the main body 2, and a semicylindrical part 3a connected upwardly on the heel side of the upper surface 3, so that the shaft 6 can be connected by both. It forms an insertion hole. Regarding the insertion hole 5a formed in the neck 5, as shown in FIGS. 1 and 2, first, a guide pipe 7 is provided whose upper end is welded to the neck 5 and the lower end is welded to the sole portion 2b, and the shaft 6 is attached to the guide pipe 7. The lower part 6a is inserted therein. Furthermore, the thickness of the sole portion 2b is formed to be thicker than the thickness of the upper surface 3.

In such a golf club head, the third
As shown in Figure A, there is a vertical rod portion 4 on the back of the face surface 1.
A is welded to the main body 2 by adjusting the first loft angle α to form an L-shaped rib 4, and as shown in FIG. Part 4
Weld together with b. Next, as shown in FIG. 3C, the edge of the upper surface 3 is welded to the upper edge of the side circumference 2a to integrate them. At this time, the net 5 is connected to both semi-cylindrical parts 2.
c, formed by 3a. In the embodiment described above, the diameter of the guide pipe insertion hole 5a of the neck 5 is made slightly larger than that of the lower part of the shaft 6 to form a certain gap, and the lower end of the guide pipe 7 is provided so as to be movable relative to the sole portion 2b. be. That is, the lower end position of the guide pipe 7 is as shown in FIGS. 3D and E.
If the face is set closer to 1, the face progression shown by A will become shorter and will be suitable for slicing or straightening. If it is moved backward, the phase progression shown by B will become longer and will be used for hooking.
If it is on the heel side, the shaft 6 shown by C will be up, and if it is on the toe side, the shaft 6 shown by D will be flat.

That is, when the guide pipe 7 is inserted, the lower end of the guide pipe 7 can be moved to any desired position, and the lower end of the guide pipe 7 is welded at a desired position such as face progression. In the embodiment, the attachment hole 2 is provided in the sole portion 2b.
d, and the lower end is welded to the hole 2d.

As described above, during manufacturing, the horizontal rod portion 4b connected to the lower end of the vertical rod portion 4a is fixed to the sole portion 2b,
Next, by attaching the face surface 1 to the vertical rod portion 4a, the face surface 1 can obtain a loft of a desired angle. Furthermore, by forming a mounting hole 2d corresponding to the lie of the shaft 6 at a desired angle during manufacturing, and inserting the lower end of the shaft mounting guide pipe 7 into this mounting hole 2d, an accurate lie of the shaft 6 can be obtained. Becomes adjustable. Therefore, by providing the L-shaped rib 4 in advance, an accurate loft can be formed. Furthermore, by selecting the reinforcing member 4 and installing it inside the golf club head, the loft adjustment function can be achieved.

Further, by attaching the shaft 6 using the guide pipe 7 inserted into the attachment hole 2d formed in the sole portion 2b, the insertion length can be increased and secure attachment can be achieved. Further, by forming the mounting hole 2d corresponding to the lie of the shaft 6, an accurate lie can be provided.

Further, the semi-cylindrical portion 3a of the upper surface 3 and the semi-cylindrical portion 2c of the main body 2 form a neck 5 for fixing the upper end of the guide pipe 7, so that the shaft 6 can be accurately fixed.

Furthermore, by making the sole portion 2b thicker than the upper surface 3, the center of gravity of the head can be brought closer to the sole portion 2b, resulting in a lower center of gravity, thereby providing a suitable golf club. In addition, by making the diameter of the insertion hole 5a of the neck 5 larger than that of the guide pipe 7, the lower part of the guide pipe 7 can be moved freely and the lower end can be welded to a desired location, which makes it easier for golf players. It is possible to provide a golf club head having a desired face progression, hook or slice, or shaft 6 up or flat. Further, in the above embodiment, the vertical rod portion 4a of the L-shaped rib 4 is fixed to the approximate center of the face surface 1, and the horizontal rod portion 4b is fixed to the approximate center of the sole portion 2b. Even when the head is jointed by the sweet area formed in the center, the strength of the head is improved, so it is strong and lightweight.

It should be noted that the present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the gist of the present invention.

[Effects of the invention] The present invention has a face surface, an upper surface provided as a semi-cylindrical portion on one side, and a cylindrical neck portion formed on one side of the sole portion in pair with the semi-cylindrical portion of the upper surface. The head body, which is made up of three members on the side circumference provided with a semi-cylindrical part, is integrally joined with the shaft, and a vertical member is attached to the tip of the horizontal rod part attached to the approximate center of the sole part, and a vertical part attached to the approximate center of the face surface. An L-shaped rib with a continuous rod part is provided inside, the upper end is fixed to the neck part, and the lower end is fixed to the sole part to provide a guide pipe for attaching the shaft, and the thickness of the sole part is made lower than the upper surface. It is thicker, allowing accurate loft and shaft lie adjustment, and the sole is thicker than the top, lowering the center of gravity. By providing it approximately in the center of the head, strength during shots can be improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is an exploded perspective view of the first embodiment, Fig. 2 is a partially cutaway front view of the same, and Figs. 3 A to E show manufacturing steps 1 to 5. FIG. DESCRIPTION OF SYMBOLS 1...Face surface, 2...Main body, 2a...Side peripheral part, 2b...Sole part, 2c, 3a...Semi-cylindrical part, 3...Top surface, 4...L-shaped rib, 4a... Vertical rod part, 4b...Horizontal rod part, 5... Netsuku, 5a...
Guide pipe insertion hole, 6...shaft, 6a...
Lower part, 7...Guide pipe.

Claims (1)

[Scope of utility model registration request] A face surface, an upper surface having a semi-cylindrical portion on one side, and a semi-cylindrical portion on one side of the sole portion forming a pair with the semi-cylindrical portion on the upper surface to form a cylindrical neck portion. A head body made up of three members on the side circumference is integrally joined with the shaft, and a vertical rod portion attached to the approximate center of the face surface is connected to the tip of the horizontal rod portion attached to the approximate center of the sole portion. A metal having a molded rib inside, an upper end fixed to the neck part and a lower end fixed to the sole part to provide a guide pipe for attaching the shaft, and the sole part being thicker than the upper surface. Manufactured golf club head.