JP3026690U - Sheet metal processed golf club head - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] A golf club head of sheet metal processing, which is easy to assemble, easy to produce, and capable of withstanding a large impact force at the time of hitting a ball. SOLUTION: A metal plate is cut to form metal pieces having three kinds of development forms each having an arc cutting line corresponding to a curve of a head and a notch extending outward, and the metal piece is press-molded. Then, the shell part of the head is formed, and a smooth club surface is formed by the arc cutting line and the notch extending outward, and then each part is assembled, welded, and polished to complete. . In addition, since the joining end of the face plate of the upper cover plate of the head is formed into an arc shape at the time of press working, a recess is formed at the joint portion of the upper cover plate and the face plate at the time of joining, and the recess is welded. As a result, the face plate receives more force.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a kind of sheet metal working golf club head which is easy to assemble, easy to produce, and capable of withstanding a large impact force when hitting a ball.

[0002]

[Prior art]

 The most common manufacturing methods for golf club heads are the casting method of injecting a metal liquid and the two methods of direct forging press molding. However, although the former gives a head with a good appearance, the manufacturing process is complicated and inconvenient for the manufacturer, and the manufacturing cost is high, especially the manufacturing cycle is long, the manufacturing time is long, and the production amount is large. However, due to the fact that there are few cases, it is gradually not being adopted by contractors. For this reason, the latter process of directly press forming a metal plate has been developed. In this technique, a metal plate is pressed by a mold to directly extrude the shape of the head, excess metal is cut, and the head is completed through welding, which requires time and cost in the above-mentioned casting method. The problem of poor product quality was completely eliminated. However, the pressure used to directly press-form the arc-shaped flat surface of the head is considerably large, which easily causes damage to the mold itself, affecting the service life of the mold. If the applied pressure is insufficient, the arc-shaped curve will not be smooth after the pressure processing, so it was necessary to make the angle necessary for further polishing. Generally, in a head made by directly press-molding a metal plate, the joint surface between the upper cover plate and the face plate is bonded, so the impact force of the striking plate at the time of striking is weak and a good hit ball should be shot. I couldn't.

[0003]

[Problems to be solved by the device]

 The present invention provides a kind of sheet metal processing golf club head that can be manufactured by a simple manufacturing process using an automated process, is easy to assemble, has high strength, and has a smooth appearance and smooth appearance. Is an issue.

[0004]

The invention of claim 1 has three or more arc-shaped perforations 11 each having a shape in which a bottom plate of the head is expanded and formed by the bottom arc line of the head, and the arcs. It is formed by cutting the metal plate 1 so as to have a notch 12 that extends outward from the perforation 11 and has an opening range set by the width of the arc surface of the head, and a hole that is combined with the neck 4 at the front end. One bottom plate part A is formed by pressing one metal piece 10 for the bottom plate into a three-dimensional structure, and has a shape in which the upper cover plate of the head is developed, and one is formed by the arc line of the bottom of the head. The metal plate 2 is formed by cutting the metal plate 2 so as to have an arc-shaped perforation 21 and a notch 22 that extends outward from the arc-shaped perforation 21 and has an opening range set by the arc degree of the upper cover plate. Press one metal piece 20 for the upper lid And one face plate 3 having a three-dimensional structure in which the edges adjacent to the face plate 3 are arcuate edges 24, and one face plate 3 are combined, and the inner surface of the face plate 3 and the above The recess 6 formed on the joint surface of the arcuate edge 24 of the cover plate part B is filled by a welding method, and one cylindrical neck 4 is directly inserted into the hole 13 on the bottom surface of the bottom plate from the tail end of the upper cover plate. After wearing, welding, and polishing.

[0005]

[Embodiment of device]

 The golf club head of the present invention is formed by cutting a metal plate to form a metal piece having three types of development shapes, each having an arc cutting line corresponding to the curve of the head and a notch extending outward. The metal piece is press-formed to form a head shell part, and a smooth club surface is formed by the arc cutting line and the notch extending outward, and then each part is assembled and welded. Then, it is completed by polishing. Also, since the joining end of the face plate of the upper cover plate of the head is arcuated during pressing, a recess is formed at the joint between the upper cover plate and the face plate at the time of joining, and welding is performed in the recess. As a result, the face plate receives more force. In addition, the present invention has the following advantages. 1. Since the present invention is completed by combining metal pieces, it is suitable for automated mass production lines and has industrial value. 2. The manufacturing process of the present invention is simple, has few manufacturing process steps, and saves time and labor. 3. Since the present invention does not cause a situation where metal liquid adheres to the mold and damages the mold, the service life of the mold is long.

[0006]

【Example】

 The manufacturing process of the present invention consists of the following six steps. 1. First, a metal plate is cut to form a bottom plate metal piece having a shape in which the bottom plate of the head is developed. Three or more arc-shaped perforations are provided on the metal piece depending on the bottom arch line of the head, and one notch is provided outside the perforations. 2. The bottom plate metal piece is placed in a press die consisting of vertically symmetrical dies and restriction molds on both sides, and the synchronous control of the hydraulic cylinder forms an arc surface on the bottom plate metal piece without causing deviations. Egg parts. 3. The metal plate is cut to form a metal piece for the upper lid in a developed shape of the upper lid plate. The upper lid metal piece is provided with one arc-shaped perforation at the same time, and one notch is provided outside the arc-shaped perforation. 4. The upper lid part is formed by the same method as the above-described step 2 above. 5. After forming the bottom plate part and the top cover part described above, the gap formed by the arcuate perforation and the notch is filled by the welding method, and the bottom plate, the top cover and the face plate are combined and welded. 6. The welded part and uneven part are scraped off and polished to improve the appearance.

As shown in FIGS. 1 and 2, the present invention has a shape in which a metal plate 1 is cut and a bottom plate of a head is developed, and three or more (books are formed by a bottom arc line of the head). In the embodiment, three arc-shaped perforations 11 and notches 12 respectively extending outward from the arc-shaped perforations 11 (the opening range of the notches 12 is set by the width of the arc surface of the head). ) And one bottom plate metal piece 10 formed so as to have holes to be combined with the neck 4 are placed flat in the lower mold 50 of the press mold (see FIG. 5), and then the upper mold 5 One bottom plate part A (which has a three-dimensional structure with an accurate arc surface angle, is pressed by the lower mold 50 and the lower mold 50 while being held by the left mold 51 and the right mold 52 without deviation. 6), the metal plate 2 is cut as shown in FIGS. A plurality of (one in the present embodiment) circular arc-shaped perforations 21 formed by the bottom arc line of the head and having outward shapes from the arc-shaped perforations 21. One metal piece 20 for the upper lid, which is formed so as to have the notch 22 (the opening range is set by the arc degree of the upper lid plate) that has been stretched, is pressed by the upper die 5 and the lower die 50. One upper cover plate part B having a three-dimensional structure (FIG. 7) having an arc edge 24 adjacent to the face plate 3 and one face plate 3 combined (see FIGS. 8 to 12), face plate The inner surface of 3 and the recess 6 formed on the joint surface of the arcuate edge 24 of the upper cover plate part B are filled by a welding method, thereby reinforcing the force of the face plate 3 at the time of impact, and , Insert one tubular neck 4 directly into the hole 13 on the bottom of the bottom plate from the tail end of the top cover plate. After welding, polishing was applied to obtain the shape shown in FIG.

[0008]

[Effect of device]

 The sheet metal-worked golf club head of the present invention can be manufactured by a simple manufacturing process that employs an automated process, is easy to assemble, has high strength, and has a smooth appearance and smooth appearance.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a bottom plate metal piece 10 is cut from a metal piece of the present invention.

FIG. 2 is a plan view of a bottom plate metal piece 10 of the present invention.

FIG. 3 is a plan view showing a state in which the upper lid piece 20 is cut from the metal piece of the present invention.

FIG. 4 is a plan view of an upper lid metal piece 20 of the present invention.

FIG. 5 is a side view of a press die used for processing bottom plate parts and upper cover plate parts of the present invention.

FIG. 6 is a bottom plate part of the present invention.

FIG. 7 is an upper plate part of the present invention.

FIG. 8 is an exploded perspective view of the golf club head of the present invention.

FIG. 9 is a perspective view of a golf club head of the present invention.

FIG. 10 is a sectional view showing a combination method of the present invention.

FIG. 11 is a sectional view showing a combination method of the present invention.

12 is an enlarged view of a part of FIG.

[Explanation of symbols]

A ... Bottom plate parts B ... Top cover plate parts 1 ...
Metal plate 10 ... Metal piece for bottom plate 11 ... Arc-shaped perforation 12
・ ・ ・ Notch 13 ・ ・ ・ Hole 14 ・ ・ ・ Notch 15 ・ ・ ・ Arc surface
2 ... Metal plate 20 ... Metal piece for upper lid 21 ... Arc-shaped perforation 22
・ ・ ・ Notch 23 ・ ・ ・ Notch 24 ・ ・ ・ Arc edge 3 ・ ・ ・ Face plate 4 ・ ・ ・ Neck 5 ・ ・ ・ Upper mold 50 ・ ・ ・ Lower mold 51 ・ ・ ・ Left mold 52 ... right mold 6 ... recess

Claims (1)

[Scope of utility model registration request] 1. A head having a shape in which a bottom plate of the head is expanded, and three or more arc-shaped perforations 11 formed by a bottom arc line of the head, and the head being extended outward from each of the arc-shaped perforations 11. One bottom plate metal piece 10 formed by cutting the metal plate 1 so as to have a notch 12 having an opening range set by the width of the arc surface and a hole to be combined with the front neck 4 is pressed. One bottom plate part A having a three-dimensional structure is formed by expanding the top cover plate of the head, and one arc-shaped perforation 21 formed by the bottom arc line of the head, and the arc-shaped perforation 21. 21. One upper lid metal piece 20 formed by cutting the metal plate 2 so as to have a notch 22 extending outward from 21 and having an opening range set by the arc degree of the upper lid plate,
The edge adjacent to the face plate 3 is pressed to form an arc edge 2
4 is combined with one upper cover plate part B having a three-dimensional structure and one face plate 3, and is formed on the inner surface of the face plate 3 and the joining surface of the arc-shaped edge 24 of the upper cover plate part B. The recess 6 to be filled is filled by a welding method, one tubular neck 4 is directly inserted from the tail end of the upper cover plate into the hole 13 on the bottom surface of the bottom plate, welded, and then polished. Sheet metal processed golf club head.