JP2540376B2 - Golf putter head using multi-layer stacked metal plates as a raw material and method for manufacturing the same - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement of a putter head for golf and a method for manufacturing the same, and more specifically, it relates to a method for producing a multi-layer stacked metal sheet obtained by rolling clad processing. The peculiar metal elasticity characteristic formed by the direction of plastic deformation is skillfully utilized to improve the ball repulsion performance of the golf putter head, and the color tone of each layer of the multi-layer metal material is beautifully designed. The present invention relates to a putter head which has a rich cosmetic appearance and a manufacturing method thereof.

[Conventional technology and technical problems to be solved]

Among golf clubs, golf putters are most likely to be expensive. For this reason, although pure gold putters and putters in which diamonds are embedded are on the market, nevertheless, most of the putter heads currently in circulation are monochromatic, and there are few patterned heads.

Also, the sweet spot of the putter exists at the intersection of this line and the face when the line perpendicular to the face passes through the center of gravity of the head, but if you hit the ball at a point away from this sweet spot, the impulse received from the ball Does not pass through the center of gravity of the head, a rotational moment is generated around the center of gravity of the head, and the force for hitting the ball is impaired. As a proposal for suppressing the loss of hitting force of such a ball, there is a putter club in which the moment of inertia of the head is increased to increase the sweet spot, but conventionally, this type of putter is made of a single metal. Since it is made by processing solid wood, trying to increase the moment of inertia inevitably increases the weight and makes it difficult to use. In order to increase the moment of inertia without increasing the weight of the club head, the metal at the center of the putter head must be thin and light, and the metal at the periphery must be heavy. The surrounding metal became thin and, on the contrary, the elasticity around the sweet spot decreased, causing a trade-off.
However, in the past, a putter in which a reinforcing material was attached to the back of the putter face was also proposed in order to suppress the decrease in elasticity as described above (see Jitsuko Sho 61-42627).
There was a drawback that the structure became too complicated.

The present invention has been made in view of the above-mentioned drawbacks in the prior art, and the surface of the face is ideally rich in ball impact resilience while exhibiting a beautiful pattern by showing the color difference of various metal layers on the surface. Another object of the present invention is to provide a golf putter head using a multi-layer stacked metal plate capable of obtaining a proper putting effect.

Further, another technical problem of the present invention is that the ball repulsion characteristic on the face surface is good, the loss of force is small even when the ball hits a position from the sweet spot, and the deviation of the ball in the ball hitting direction is small. An object is to provide a practical putter head for golf.

Still another technical problem of the present invention is to provide a rational method capable of industrially mass-producing putter heads that can satisfy the above technical problems.

[Means adopted for solving the problem]

Means adopted by the present inventor to solve the above problems are as follows.

That is, according to the present invention, a multilayered stacked metal plate obtained by rolling and clad a plurality of different kinds of different metal materials having different color tones is folded, whereby at least a fault portion near the surface layer of the stacked metal plate is folded and the surface layer is ground. A plurality of metal materials are exposed on the surface to present a cloud pattern, or the multi-layer stacked metal plate is in a stratified state and has a grain pattern on the fault section, and the stacked metal A beautiful metallic pattern is exhibited by adopting a means in which the stretching direction of each metal layer defined by the metal plastic deformation direction during rolling of the plate is oriented so as to exhibit great elasticity on the face surface, A characteristic is that a golf putter head that has good ball resilience performance and can hit the ball in an appropriate direction to obtain an ideal putting effect is realized. In addition, in the above description, the “stretching direction of the metal layer” refers to a spreading direction of the metal when the multilayer stacked metal plate is stretched and spread in a certain direction by rolling such as a roll.

Further, according to the present invention, two or more kinds of metal plate materials having different color tones or elasticity are superposed and integrated by rolling clad processing to obtain a multilayer stacked metal plate, and whether or not a grain pattern is exposed in a laminated cross section of the multilayer stacked metal plate. , Or the surface of the laminated metal plate which is not a laminated cross section is hammered so that irregularities are formed,
After that, the unevenness of the surface is shaved and smoothed to expose a cloud pattern on the surface of the laminated metal plate, and then the laminated metal plate is processed to form a putter head having a cloud pattern or a grained pattern. Or a putter head is formed from a laminated metal plate so that the extending direction of each metal layer defined by the plastic deformation direction during the rolling process of the multilayer stacked metal plate is perpendicular to the putter face. It is characterized in that a method for manufacturing a putter head satisfying the above-mentioned technical problems is realized by adopting a processing means of processing.

〔Example〕

The present invention will be described below based on examples shown in the accompanying drawings.

Plate material A (thickness 10 mm, width 140 mm, length 650 mm) of two thick stainless steel (JIS SUS430) and plate material B (thickness 3.5 mm, width 140 mm, length) of thin 14 stainless steel (JIS SUS430)
650 mm) and 7 copper alloy (JIS C4622) plate materials C (thickness 2 m
m, width 130 mm, length 640 mm) and eight copper (JIS C1220) plate materials D (thickness 2 mm, width 130 mm, length 640 mm) are designated by the above code A
・ D ・ B ・ C ・ B ・ D ・ B ・ C ・ B ・ D ・ B ... B ・ D
・ After stacking in the order of A, sealing and welding the ends, heating in a heating furnace and rolling in the state of 850-900 ℃, the primary laminated material (thickness 10 mm, width 160 mm, length about 5000 mm) To obtain (see FIG. 1). This primary laminated material is cut into two lengths
After obtaining the 650 mm primary laminated plate material, two primary laminated plate materials E and 11 stainless steel (JIS SUS430) plate materials F (thickness)
6mm, width 160mm, length 650mm) and 6 copper alloys (JIS C462
2) Plate material G (length 2 mm, width 150 mm, length 640 mm) and copper (JI
S C1220) plate material H (thickness 2 mm, width 150 mm, length 640 mm)
The above-mentioned symbols E, H, F, G, F, H, F, G, F ... F
・ G and E are piled up in this order, the ends are hermetically welded, then heated in a heating furnace and rolled in a state of 850-900 ° C to obtain a secondary laminated material (thickness 32 mm, width 180 mm, length 1900 mm). ) Is obtained (see FIG. 2). Cut this secondary laminated material to length 20
After obtaining a secondary laminated plate material of 0 mm, two surfaces that are not the laminated cross section of the secondary laminated plate material are hammered to bend the fault section to form irregularities on the surface, which is ground and polished, Smooth the surface. At this time, a cloud pattern appears by exposing three kinds of metals alternately on the processed surface (see FIG. 3). Since the primary laminated plate material on the surface of the secondary laminated plate material is made of a thin plate material, patterning can be easily performed. The secondary laminated plate material after patterning is cut to obtain the raw material M ₁ (thickness 30 mm, width 15 mm, length 130 mm),
The raw material M ₁ is machined to form a putter head 1 according to the first embodiment.
Is obtained (see FIG. 4). The symbol h entered in FIG.
Is the thickness of the raw material, w is the width of the raw material, and l is the length of the raw material. The symbols h.w.l written in FIG. 5 described later have the same meaning. In the putter head 1 of the first embodiment, a grain pattern appears on the laminated cross section of the raw material and a cloud pattern appears on the patterned surface of the raw material. As is clear from the orientation state, the fiber direction due to the elongation during the rolling clad process is aligned perpendicular to the face surface of the putter, and therefore, the elastic property is excellent against the impact applied to the fiber direction side surface.

The second embodiment putter head 2 is different in size, but the patterned second laminated plate material that can be obtained in the same manner as the first embodiment putter head 1 is cut to obtain the raw material M ₂ (thickness).
20mm, width 35mm, length 130mm) was obtained and processed so that the laminated cross section of the raw material M ₂ was perpendicular to the face of the putter head after processing (see Fig. 5). . Further, in this embodiment, since metal plate materials having different elasticity are combined and laminated, the elasticity of the face surface along the fiber direction is better than that of the first embodiment, and is ideal as a putter head. Is.

Although the present embodiment is configured as described above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the claims. In particular, the laminated metal is changed to nickel, titanium, or aluminum, the secondary laminated material is composed of only two primary laminated plate materials and stainless steel to eliminate grain, and the secondary laminated plate material has one patterned surface. In addition, in the second embodiment, the raw material is not limited to the secondary laminated plate material, but a material obtained by simply laminating two metal plate materials is used as the raw material, and the specific gravity of the center part of the putter head after processing is light. Naturally, it is also within the technical scope of the present invention to stack the metal plate materials so that the specific gravity of the peripheral portion becomes heavy.

[Effect of the present invention]

As described in the above examples, the putter head manufactured by applying the present invention has a beautiful grain pattern and cloud pattern, and the pattern thus revealed is formed by the color of the material metal itself. However, it is clear that it does not come off and creates a sense of luxury.

Further, the face surface of the putter head to which the present invention is applied is a multilayer stacked metal plate produced by rolling clad processing, and the face surface is formed along the fiber direction due to plastic deformation during rolling clad processing. In addition, since two or more kinds of metal plate materials are laminated, the strength and elasticity in the stretching direction stretched by rolling are modified and improved, and the golf ball exhibits ideal elasticity for putting.
By the way, the metallographic structure of such a putter head is
The reason is to increase the elasticity of the golf ball for the same reason as the multilayer structure. And, if the elasticity is large like the putter face of the present invention, even if the ball is hit at a point away from the sweet spot, the ball will roll strongly. In addition, the impact time of a golf ball when hitting a metal putter face surface with high altitude and high elasticity is shorter than when hitting a metal putter face surface with low elasticity even if the hardness is the same. When hitting with a large metal putter face surface, it is possible to reduce an unnecessary rotary drive that the ball receives on the face surface, and therefore, it is possible to reduce deviation in the rolling direction of the ball.

Further, since the putter head constructed according to the present invention has a multi-layered structure of metal, it has a toughness and a high shock absorption due to the stacking effect, and has a good feel during putting. This responsiveness gives the player pleasure and confidence,
Produces excellent putting.

Thus, according to the present invention, an excellent putter head can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a method for constructing a primary laminated material, FIG. 2 is a diagram for explaining a method for constructing a secondary laminated material, FIG. 3 is a diagram for explaining patterning processing, and FIG. 4 is a first diagram. FIG. 5 is a diagram for explaining a place where the putter head of the embodiment is obtained by shaving, and FIG. 5 is a diagram for explaining the putter head of the second embodiment. 1-Pattern head for the first embodiment, 2-Pattern head for the second embodiment. A ... stainless steel plate material, B ... stainless steel plate material, C ... copper alloy plate material, D ... copper plate material, E ... primary laminated plate material, F ... stainless steel plate material, G ... Copper alloy plate, H ... Copper plate. M ₁ …… Raw material, M ₂ …… Raw material. h ... thickness, w ... width, l ... length.

Claims (3)

(57) [Claims] 1. A multi-layer stacked metal plate obtained by rolling and clad a plurality of different kinds of metal materials having different color tones, at least a fault portion near the surface layer is folded, and a plurality of metal materials are exposed on the ground surface on the surface layer side to form a cloud. The pattern is displayed, or the multi-layer stacked metal sheet is in a layered state and a grain pattern is displayed on the fault part, and it is specified by the direction of metal plastic deformation during rolling of the stacked metal sheet. A putter head for golf using a multilayer stacked metal plate as a raw material, wherein the extending direction of each of the metal layers is oriented so that the face surface exhibits a large elasticity. 2. A multi-layer stacked metal plate is obtained by superposing two or more kinds of metal plate materials having different color tones by rolling clad processing to obtain a multi-layer stack metal plate, or a grain pattern is made to appear on the laminated cross section of the multi-layer stack metal plate, or The surface of the laminated metal sheet is hammered so as to form irregularities, and then the irregularities of the surface are ground to smooth the surface to reveal a cloud pattern on the surface of the laminated metal sheet. A method for producing a putter head for golf using a multilayer stacked metal sheet as a raw material, characterized in that a putter head having a cloud pattern or a grain pattern is obtained by processing the metal sheet. 3. A multi-layer stacked metal plate is obtained by stacking two or more kinds of metal plate materials having different elasticity and integrating them by rolling clad processing, and stretching each metal layer defined by a plastic deformation direction during the rolling processing. By processing a putter head from a laminated metal plate so that the direction is perpendicular to the putter face, a putter head capable of imparting a large impact resilience to a golf ball whose drawing direction of the metal structure hits the face surface is obtained. A method for manufacturing a putter head for golf using a multilayer stacked metal plate as a raw material, which is characterized by being obtained.