JP5212523B2 - Golf club head and manufacturing method thereof - Google Patents

Description

  The present invention relates to a golf club head and a method for manufacturing the same.

  As a method of processing a golf club head with a laser processing machine, there is known a method in which a recess is formed on a surface of a head body by a laser to form a count display or a logo mark (Patent Document 1).

Etching consists of a step of applying a primer to the surface of the head body to form a primer layer and a step of partially peeling off the primer layer by laser light irradiation to form a predetermined pattern on the surface of the head. and sophisticated control is not necessary, which can be a texturing to the surface of the head only by the pattern formation by laser irradiation of the primer layer is also inform.

JP 2003-33454 A JP 2009-136 A

  In the former prior art, since a concave portion is formed on the surface of the head by a laser, it has been impossible to provide a display portion representing a pattern or the like on the surface of the head member with the surface formed flat.

  In the latter conventional technique, since the primer layer is partially peeled off by laser light irradiation, it is not possible to adjust the brightness level by laser light irradiation itself, and the degree of freedom of patterning is not high. It was a thing.

  As means for improving the degree of freedom of patterning, for example, a transfer mark is attached to the surface of the head body, and a clear paint layer is provided on the surface of the transfer mark. In addition, it was complicated to paste the sheet without any wrinkles, and when creating the transfer mark, it was necessary to create a film or a block copy in accordance with the display portion of the pattern or the like.

  Although the method of partially removing the coating film or applying the transfer mark as described above is about 5 μm, a step is produced. Although it is a slight difference in level, it can be recognized visually and is not preferable in appearance.

  The problem to be solved is that in a display part of a golf club head in which a display part representing a pattern or the like is provided on the surface of a head member made of pure titanium or a titanium alloy, and a transparent coating layer is provided on the surface of the display part, In order to improve the appearance of the appearance, the cost is lower than that in the past and stable production is possible.

The invention of claim 1 provides a golf club in which a display portion representing a pattern, letters, numbers or symbols is provided on the surface of a crown member made of pure titanium or a titanium alloy, and a colored clear coating layer is provided on the surface side of the display portion. of Oite the heads, the display portion is formed by baking section the laser formed by irradiating the surface, thereby enabling perspective the display unit, a non-transparent colored coating layer except the display unit The golf club head is characterized in that a gradation coating layer is provided in an intermediate portion between the display portion and the colored coating layer in plan view .

  According to a second aspect of the present invention, in the golf club head according to the first aspect, the display portion looks different in color tone between a front view and a slope view.

According to a third aspect of the present invention, there is provided a display portion that represents a pattern, letters, numbers, or symbols on the surface of a crown member made of pure titanium or a titanium alloy, and a colored clear coating layer is provided on the surface side of the display portion to provide the display. parts in manufacturing process of see-through and the golf club head, first formed a first step of polishing finish the surface of the crown member, a plurality of baking section by irradiating a laser onto the surface of the crown member 2 A step, a third step of providing a masking layer on the baked portion, a fourth step of blasting the surface of the crown member, a fifth step of stripping off the masking layer, and a transparent primer on the surface of the crown member A sixth step of providing a coating layer, a seventh step of sanding the surface of the primer coating layer, and a display ring formed from a plurality of the baking portions An eighth step of providing a gradation coating layer so as to blur, and providing a non-transparent colored coating layer on the outside of the gradation coating layer; the surface of the primer coating layer, the surface of the gradation coating layer, and the colored coating layer; And a ninth step of forming a colorless clear coating layer for finishing on the color clear coating layer after providing a color clear coating layer so as to cover the surface, and then sanding the color clear coating layer. This is a method of manufacturing a golf club head.

The invention of claim 4 is the production process according to claim 3 of the golf club according heads characterized by shape formed to Rukoto the point-like on the baking section said surface.

  A fifth aspect of the present invention is the method of manufacturing a golf club head according to the third aspect, wherein the burned portion is formed on the surface in a non-regular polygon, a non-regular triangle, or a non-circular shape in plan view. .

  According to the first aspect of the present invention, there is no difference in level on the surface by providing the display portion by forming a portion having a low brightness on the member of the head by a printing portion formed by irradiating the surface with laser. Can be provided stably at a low cost.

  According to the invention of claim 2, the display section has a different color tone depending on the refraction of light, so that various patterns such as a prism can be enjoyed.

  According to the invention of claim 3, the display portion can be easily formed by laser processing by forming the portion having a low brightness on the member of the head by the baking portion formed by irradiating the surface with the laser and providing the display portion. It can be provided at low cost and stably.

  According to the fourth aspect of the present invention, even if a plurality of dot-shaped ones are provided to provide a display portion, they can be easily manufactured.

  According to the invention of claim 5, the display unit is formed in a non-regular polygon, non-regular triangle or non-circular shape in plan view on the surface, so that the pattern changes when the display unit is viewed from an oblique direction. Therefore, you can enjoy various patterns.

It is a whole perspective view which shows Example 1 of this invention. FIG. It is sectional drawing of the 1st process. It is sectional drawing of the 2nd process. It is sectional drawing of the 3rd process. It is sectional drawing of the same 4th process. It is sectional drawing of the said 5th process. It is sectional drawing of the same 6th process. It is sectional drawing of the said 7th process. It is sectional drawing of the said 8th process. It is sectional drawing of the 9th process. It is a perspective view of the 2nd process. It is a perspective view which shows Example 2 of this invention. It is a perspective view which shows Example 3 of this invention.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  The figure shows Example 1, and this Example 1 shows the case of the head of a metal wood type golf club, and the plate-like member for forming the head as shown in FIGS. A hosel 6 for connecting a shaft 5 to one side in the left-right direction of the head is provided with a face member 1 serving as a hitting surface, a sole member 2 on the lower surface, side-back members 3 on the left and right and rear surfaces, and a crown member 4 on the surface. It is connected. The members of the face member 1, the sole member 2, the side back member 3, and the crown member 4 are made of pure titanium or a titanium alloy.

The surface of the face member 1 is not painted, and the surface of the side back member 3 is provided with a clear coating layer 19 (not shown). Further, the surface of the crown member 4 is painted and the overall color tone is, for example, black, and a plurality of gray backgrounds 7 are arranged in a carbon tone (lattice pattern) at the approximate center of the surface of the crown member 4. A pattern is formed.

  The cross-sectional structure of the crown member 4 is such that the black spot portions are arranged in parallel at a plurality of intervals on the center side of the surface (skin 7) of the crown member 4 with a plurality of intervals. In the embodiment, for example, a planar rectangular burned portion 8 having a side of about 2 mm is spaced at equal intervals through a gap 9 in the ground 7 having the same shape. A plurality of them are continuously arranged in the front-rear direction and the left-right direction. The surface of the crown member 4 is formed on the first rough surface 10 in order to improve adhesion. Then, a transparent primer coating layer 11 is provided on the surface of the baked portion 8 and the surface that is the outside of the first rough surface 10 in order to improve adhesion.

Further, the surface of the primer coating layer 11 is formed on the second rough surface 12, and a non-transparent colored coating layer 14 is provided on the second rough surface 12 except for the display portion. Further, the gradation coating layer 13 is provided in an intermediate portion between the display portion and the non-transparent colored coating layer 14 in plan view. Further, the third rough surface 15 formed on the entire surface of the crown member 4, that is, the surface of the gradation coating layer 13, the second rough surface 12 of the primer coating layer 11 disposed inside and outside thereof, and the colored coating layer 14, respectively. A color clear (colored transparent) coating layer 17 is provided on the fourth rough surface 16. In the embodiment, the color clear coating layer 17 is black. A clear (colorless and transparent) coating layer 19 which is a transparent coating layer is provided on the fifth rough surface 18 formed on the surface of the color clear coating layer 17 for the purpose of polishing.

  That is, the display portion is formed in three layers, and the non-transparent colored coating portion on the outer side is formed in four layers. The two are connected in a natural way by the gradation painted part. That is, the gradation coating layer 13 has two roles of connecting the steps of one layer in an inclined manner and blurring the boundary between the two.

  Next, a manufacturing method is demonstrated with reference to FIGS. As shown in the first step of FIG. 3, the crown member 4 and other members are pre-formed with pure titanium or a titanium alloy by forging, and these members are joined together to form a head body. The surface which becomes the outer side of the crown member 4 which becomes the surface is polished.

  As shown in the second step of FIG. 4, a black-type baking portion 8 is provided on the surface (background 7) having a gray color which is the color tone of titanium of the crown member 4. The baking part 8 is formed by baking by irradiating the surface of the laser L emitted from an irradiation nozzle 20 of a laser device (not shown), and the gray of the background 7 is changed to black by the baking part 8. . And as shown in FIG. 12, the baking part 8 becomes a black dot shape in the range of about 50 to 80% of the surface area in the center part of the surface, and is multiply arranged by carbon tone (grid shape). And the plane of one printing part 8 is a rectangle, and it is continuously arranged on the front, back, left and right so that the corner end is connected to the corner end of the adjacent printing part 8. In this laser treatment, the laser power is 100%, the laser speed is 2000 mm / second, and the frequency is 90 KHz.

  As shown in the third step of FIG. 5, a masking layer 21 is provided. In addition to being provided on the surface of the baked portion 8, the masking layer 21 is applied to a non-painted surface, which will be described later, such as the face member 1.

  As shown in the fourth step of FIG. 6, the first rough surface 10 is formed at a place other than the masking layer 21 by blasting the surface of the crown member 4.

  As shown in the fifth step of FIG. 7, the masking layer 21 on the crown member 4 is peeled off to show the baked portion 8, and the surfaces of the baked portion 8 and the first rough surface 10 are cleaned and dried. .

  As shown in the sixth step of FIG. 8, a transparent primer coating layer 11 is provided on the baked portion 8 and the first rough surface 10. As shown in the seventh step of FIG. 9, the surface of the primer coating layer 11 is sanded to form a second rough surface 12.

  As shown in the eighth step of FIG. 10, the gradation coating layer 13 is provided so as to blur the outline that forms the outline of the plurality of baked portions 8. Then, a non-transparent colored coating layer 14 is provided on the outside thereof. Gradation painting should be done with a smaller amount of paint than non-transparent colored painting. And let it dry. As shown in the ninth step of FIG. 11, the surface (second rough surface 12) of the primer coating layer 11 on which the baked portion 8 is arranged, the surface (third rough surface 15) of the gradation coating layer 13, and colored coating A color clear coating layer 17 is provided so as to cover the surface (fourth rough surface 16) of the layer 14, and is dried.

Thereafter, as shown in the ninth step of FIG. 11 , the fifth rough surface 18 is formed on the surface by sanding the color clear coating layer 17. Then, a colorless clear coating layer 19 for finishing is formed on the fifth rough surface 18 and dried.

  As described above, in the above-described embodiment, the display portion showing the pattern is provided on the surface of the crown member 4 made of pure titanium or titanium alloy, and the transparent coating layer, the primer coating layer 11 in the embodiment, the color clear is provided on the surface of the display portion. In the head of the golf club provided with the coating layer 17 and the colorless clear coating layer 19 for finishing, the display unit is formed by the printing unit 8 formed by irradiating the surface with the laser L from the irradiation nozzle 20, thereby the printing unit 8. There is no step at the location where the slab is formed and the other surface (background 7) location, and the same planar shape can be maintained, and the contour of the baked portion 8 can be made clear. On the other hand, when a film-like transfer mark is pasted on the conventional surface, a step is generated between the surface and the transfer mark, and a shadow is formed by this step. There is a risk of appearing uniform.

  Further, by employing a manufacturing method in which the surface is irradiated with the laser L to form the baked portion 8, the manufacturing method of the embodiment is compared with the manufacturing method by pasting the transfer mark. Is not necessary, and the attaching operation requires accurate alignment. Therefore, the manufacturing method of the embodiment can be manufactured more easily and at low cost. In addition, in the manufacturing method by pasting the transfer mark, there is a concern that wrinkles may occur and become defective when the transfer mark is pasted. It is possible to make the correction more easily. This is because the baking depth is very small and can be easily removed by slight polishing.

  Furthermore, although the grid pattern is formed in black in the embodiment, the present invention is not limited to this. The color of the burned portion 8 formed by irradiating the surface 7 of the titanium surface with the laser L can be changed relatively freely by the program by changing the irradiation conditions of the laser L or the pattern to be displayed. The degree of freedom in design can be improved. For example, it is possible to combine the various colors of titanium oxide and the color tone of color clear, or to make the display unit three-dimensional with color shades.

  Other embodiments will be described below. In addition, the same code | symbol is attached | subjected to the same part as the said Example 1, and the detailed description is abbreviate | omitted. In Example 2 shown in FIG. 13, dark portions such as black spots and gray are arranged in parallel at a plurality of intervals on the center side of the surface (background 7) of the crown member 4 by a baking portion 8 ′. 8 'is formed by irradiating laser light from a laser device (not shown), and this burned portion 8' is a planar shape that can be seen from above when the surface of the crown member 4 is directly viewed. Is formed in a fan shape having a non-regular polygon, non-regular triangle or non-circular shape having a radius of 1 to 3 mm, preferably 2 mm, for example. The sharp apex 8′A of the baking portion 8 ′ that is fan-shaped and arranged side by side in the front-rear and left-right directions with an interval 9 ′ is directed in one direction, for example, the face member 1 side. The shapes of these baked portions 8 are the same, and the intervals 9 'are formed at almost equal intervals. A transparent primer coating layer (not shown) and a color clear coating layer (not shown) are provided. In the embodiment, the printing portion 8 'may be white or a light color portion such as a mirror surface.

  Therefore, in the embodiment, the portion where the baked portion 8 ′ is formed and the other surface (background 7) portion can be left in the same plane without any step, and the contour of the baked portion 8 ′ can be made clear.

  Further, by forming the burned portion 8 ′ in a fan shape that is a non-regular polygon, non-regular triangle, or non-circular shape, for example, when the crown member 4 and eventually the burned portion 8 ′ are viewed obliquely downward from the face member 1 side. The top portion 8'A appears to face forward, while when the crown member 4, and thus the baked portion 8 'is seen obliquely downward from the side opposite to the face member 1 side, the top portion 8'A appears to face backward, Further, when the crown member 4, and thus the printed portion 8 'is viewed obliquely downward from the hosel 6 side, the top portion 8'A appears sideways and appears as different patterns.

  As described above, the display portion 8 ′ has a fan shape that is a non-regular polygon, a non-regular triangle, or a non-circular shape in plan view so that different patterns appear depending on the direction in which the display portion 8 ′ is viewed. It has become. For this reason, for example, when positioning the head with respect to the ball (not shown) at the time of a tee shot, the player can accurately set the positioning based on the pattern that can be seen on the display unit 8 '.

  Further, the printing portion 8 ′ has a different color tone depending on the angle of viewing due to the light refraction of the color clear coating layer, so that various patterns like a prism can be enjoyed.

  In Example 3 shown in FIG. 14, the baking portions 8 ″ are arranged in parallel at a plurality of intervals on the center side of the surface (background 7) of the crown member 4, and the baking portions 8 ″ are arranged on the crown member 4. The planar shape seen from above, that is, viewed from above, is, for example, a non-regular polygon, non-regular triangle, or non-circular shape having a side length of 1 to 3 mm, preferably 2 mm. Is formed. In the substantially rectangular shape, each side 8 ″ B is formed in a gentle arc shape. The sharp apex 8 ″ A of the baked portions 8 ″ arranged side by side at equal intervals 9 ″ is directed in one direction, for example, the face member 1 side. The shapes of the baked portions 8 are substantially the same, and the intervals 9 ″ are formed at substantially equal intervals. A transparent primer coating layer (not shown) and a color clear coating layer (not shown) are provided.

  Therefore, in the embodiment, there is no step between the portion where the baked portion 8 ″ is formed and the other surface (background 7) portion, and the surface can be kept flat and the outline of the baked portion 8 ″ can be made clear. it can.

  Further, by forming the printing portion 8 'into a substantially rectangular shape such as a non-regular polygon, a non-regular triangle, or a non-circular shape, for example, when the crown member 4 and eventually the printing portion 8' is viewed obliquely downward from the face member 1 side. On the other hand, when the crown member 4 and thus the baked portion 8 ″ are viewed obliquely downward from the opposite side to the face member 1 side, the top portion 8 ″ A is directed rearward. Further, when the crown member 4 and thus the baked portion 8 ″ are viewed obliquely downward from the hosel 6 side, the top portion 8 ″ A appears sideways, and appears as different patterns.

  As described above, the display portion 8 ″ has a non-regular polygon, non-regular triangle, or non-circular substantially rectangular shape in plan view on the surface, so that the pattern varies depending on the direction in which the display portion 8 ″ is viewed. Appears. For this reason, for example, when positioning the head with respect to the ball (not shown) at the time of a tee shot, the player can accurately set the positioning based on the visible pattern of the display unit 8 ″.

  Furthermore, the printing portion 8 ″ has a different color tone depending on the angle of viewing due to the light refraction of the color clear coating layer, so that various patterns like a prism can be enjoyed.

  As described above, the head and the manufacturing method thereof according to the present invention can be applied to various uses.

4 Crown member (head member)
7 Background 8 8 '8 "Baking part
17 color clear paint layer (color clear paint layer)

Claims (5)

Pure titanium or patterns on the surface of the crown member made of titanium alloy, letters, numbers, or the display unit representing the symbol is provided, Oite the heads of the golf club provided with a colored clear paint layer on the surface side of the display unit, The display unit is formed by a printing unit formed by irradiating the surface with a laser, the display unit can be seen through, and a non-transparent colored coating layer is provided except for the display unit, and the display in plan view A golf club head , wherein a gradation coating layer is provided at an intermediate portion between the color coating layer and the colored coating layer . The golf club head according to claim 1, wherein the display portion looks different in color tone between a front view and a slope view. A golf that is provided with a display portion representing a pattern, characters, numbers, or symbols on the surface of a crown member made of pure titanium or a titanium alloy, and a colored clear coating layer is provided on the surface side of the display portion so that the display portion can be seen through. in manufacturing method of the club head, a first step of polishing finish the surface of the crown member, a second step of forming a plurality of baking section by irradiating a laser onto the surface of said crown member, to the baked part A third step of providing a masking layer, a fourth step of blasting the surface of the crown member, a fifth step of peeling off the masking layer, and a sixth step of providing a transparent primer coating layer on the surface of the crown member And a seventh step of sanding the surface of the primer coating layer, and the outline of the display part formed from the plurality of printing parts is blurred. An 8th step of providing a foundation coating layer and providing a non-transparent colored coating layer outside the gradation coating layer, and covering the surface of the primer coating layer, the surface of the gradation coating layer, and the surface of the colored coating layer And a ninth step of forming a colorless clear coating layer for finishing on the color clear coating layer after providing a color clear coating layer and then sanding the color clear coating layer. A method of manufacturing a golf club head. A process according to claim 3 of the golf club according heads characterized by shape formed to Rukoto the point-like on the baking section said surface. The baking unit in plan view on the surface irregular polygon, non equilateral triangle or process according to claim 3 of the golf club according heads to non-circular in form to said Rukoto.

Images