JP4805000B2 - Golf club shaft - Google Patents

Description

  The present invention relates to a golf club shaft made of carbon fiber reinforced resin (CFRP).

  At present, a golf club shaft made of a carbon fiber reinforced resin obtained by hardening a carbon fiber with a thermosetting resin is often used. When a golf club shaft (carbon shaft) made of this carbon fiber reinforced resin is produced, a raw tube made of carbon fiber reinforced resin is molded, and then the surface is finished and painted.

  In the above painting, a single paint is often used, but two kinds of paints having different colors may be used (see Patent Document 1). Patent Document 1 discloses an invention of a tubular body having a region in which particles of the second color are mixed in the paint layer of the first color on the tubular body body to form a blurring pattern.

JP-A-8-172882

  However, the golf club shaft formed of the tubular body of Patent Document 1 has a two-color blur pattern and does not have sufficient design properties.

  The present invention has been made in view of the above-described circumstances, and provides a golf club shaft made of a carbon fiber reinforced resin, and capable of imparting sufficient design properties by painting. For the purpose.

In order to achieve the above-mentioned object, the present invention has a metallic paint layer formed on the outer peripheral surface of a base tube made of carbon fiber reinforced resin, and a color clear paint coating region is formed in the axial direction of the shaft on the peripheral surface of the metallic paint layer. along with formed with a plurality, the plurality of color clear coating paint area is a Lugo Rufukurabu shaft to have a different color from each other, said plurality of color clear coating paint area, transfer sheet or the transfer film on The golf ball is formed by using a thermal transfer method in which the color clear paint layer is transferred onto the metallic paint layer by applying pressure to the metallic paint layer of the shaft and heating while applying pressure. Provide club shaft.

  In the golf club shaft of the present invention, a metallic paint layer is formed on the outer peripheral surface of a black base tube made of carbon fiber reinforced resin, and a plurality of color clear paint coating regions having different colors are formed on the peripheral surface of the metallic paint layer. Is formed. Therefore, the light reflected by the metallic paint layer is transmitted through each color clear paint coating region to develop a unique color feeling, and as a result, sufficient design can be obtained.

  Hereinafter, the present invention will be described in more detail. The base tube made of carbon fiber reinforced resin used in the present invention can be formed, for example, by forming a prepreg laminate around a tapered cylindrical mandrel and then heat-curing the laminate. As the prepreg, for example, a sheet-like material produced by impregnating a thermosetting resin into reinforcing fibers such as roving, cloth, and mat aligned in parallel can be used. In this case, the reinforcing fibers may be carbon fibers alone or a mixture of carbon fibers and reinforcing fibers other than carbon fibers. Examples of reinforcing fibers other than carbon fibers include glass fibers, metal fibers, aramid fibers, silicon carbide fibers, alumina fibers, and boron fibers. Moreover, as a thermosetting resin, an epoxy resin, a phenol resin, an unsaturated polyester resin, or the like can be used, and as a secondary material, a curing agent, a curing accelerator, a filler, a release agent, a pigment, or the like can be used.

  In the present invention, a metallic paint layer is formed on the outer peripheral surface of the raw tube. However, it is not necessary to form a metallic paint layer on the part where the grip is attached. As the metallic paint, for example, a base paint prepared by mixing a bright material made of aluminum, zinc, silver, platinum, nickel, tin, stainless steel, mica, or the like can be used. There is no limitation on the color of the metallic paint, but silver is preferable, and aluminum foil, titanium dioxide fine particles, titanium foil or the like is preferably used as a pigment, and vapor deposition aluminum having a particularly high brightness is preferably used as the pigment. The metallic paint layer can be formed by spray coating, ironing, or the like, but is not limited thereto.

  In the present invention, a plurality of color clear coating areas are formed along the axial direction of the shaft on the peripheral surface of the metallic coating layer. As the color clear paint, a transparent clear paint mixed with a colorant such as a pigment can be used. The color of the color clear paint is not limited, but highly saturated colors, specifically blue, red, yellow, orange and purple are preferred. The dye is generally a particle smaller than the pigment, and the colorant may be a dye.

  In the present invention, it is preferable that the color clear coating region is formed continuously along the axial direction of the shaft. Thereby, the further outstanding design property can be obtained.

  In the present invention, it is preferable that a part of adjacent color clear paint coating regions overlap each other at a boundary portion between a plurality of color clear paint coating regions. Thereby, it is possible to prevent the color from rapidly changing at the boundary portion of the color clear paint coating region, and it is possible to obtain a more excellent design.

  In the present invention, the plurality of color clear paint areas are three clear paint areas having two adjacent colors of the three primary colors (red, blue, yellow) and intermediate colors thereof, and are dark on the base end side of the shaft. It is particularly suitable to form a clear color paint region of the color, a clear color paint region of the intermediate color ahead, and a clear clear color paint region of the light color ahead of it, and expose the metallic paint layer at the tip of the shaft. In this way, a smooth gradation of color (color transition) can be obtained, and particularly excellent design can be obtained. Specifically, red and yellow and orange which is an intermediate color thereof may be used, or yellow and blue and green which is an intermediate color thereof may be used. In particular, gradations of red, orange, and yellow that are close in hue are good.

Color clear coating paint region is preferably formed by the transfer of one using a thermal transfer method. When using the thermal transfer method, a color clear paint layer is formed on the transfer paper or transfer film by screen printing, etc., and the color clear paint layer on the transfer paper or transfer film is applied to the metallic paint layer on the shaft and heated while applying pressure. By doing so, the color clear paint layer may be transferred onto the metallic paint layer. By forming multiple color clear paint areas by a single transfer using the thermal transfer method, the color clear paint application process can be simplified and a heating process (baking) to cure the color clear paint. ) And the deterioration of the shaft due to heat can be prevented.

  In the golf club shaft of the present invention, it is preferable to form a transparent clear paint layer on the outermost layer of the shaft. Thereby, a metallic paint layer and a color clear paint coating area can be protected. The transparent clear paint layer can be formed by spray coating, ironing, or the like, but is not limited thereto.

  The golf club shaft of the present invention can be provided with sufficient design properties by painting.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following examples. FIG. 1 is a schematic front view showing an example of a golf club shaft of the present invention.

  In the golf club shaft 10 of this example, a metallic paint layer 14 is formed on the entire outer peripheral surface of a base tube 12 made of carbon fiber reinforced resin. Further, three color clear paint coating regions 16, 18, and 20 are continuously formed on the peripheral surface of the metallic paint layer 14 along the axial direction of the shaft. In the boundary portion between the color clear paint application regions 16, 18, and 20, a part of the adjacent color clear paint application regions 16, 18, and 20 overlap each other.

  The color clear coating region 16 is red, the color clear coating region 18 is orange, the color clear coating region 20 is yellow, and the metallic coating layer 14 is exposed at the tip of the shaft. That is, in the golf club shaft 10 of the present example, the color clear paint coating regions 16, 18, and 20 are composed of two adjacent primary colors (red, blue, yellow) (red, yellow, yellow) and an intermediate color (orange). Color), three clear paint coating areas having a dark color (red) on the base end side of the shaft, an intermediate clear paint paint area 18 on the other side, and a light color (yellow) on the other side. The clear paint coating region 20 is formed, and the metallic paint layer 14 is exposed at the tip of the shaft.

  In the golf club shaft 10 of this example, the three color clear paint application regions 16, 18, and 20 are formed by one transfer using a thermal transfer method. Further, in the golf club shaft 10 of this example, a transparent clear paint layer is formed on the outermost layer of the shaft.

It is a typical front view showing an example of the shaft for golf clubs of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Golf club shaft 12 Base tube 14 Metallic paint layer 16 Color clear paint application area 18 Color clear paint application area 20 Color clear paint application area

Claims (6)

A metallic paint layer is formed on the outer peripheral surface of the raw tube made of carbon fiber reinforced resin, and a plurality of color clear paint coating regions are formed along the axial direction of the shaft on the peripheral surface of the metallic paint layer, and a plurality of color clear coating paint area is a Lugo Rufukurabu shaft to have a different color from each other, said plurality of color clear coating paint area, transfer sheet or a color clear paint layer shaft metallic paint layer on the transfer film A golf club shaft characterized by being formed by using a thermal transfer method in which a color clear paint layer is transferred onto a metallic paint layer by heating while being pressed against the metal .   2. The golf club shaft according to claim 1, wherein the plurality of color clear paint coating regions are continuously formed along an axial direction of the shaft.   3. The golf club shaft according to claim 1, wherein at a boundary portion between the plurality of color clear paint application regions, a part of the adjacent color clear paint application regions overlap each other.   The plurality of color clear paint application areas are three clear paint application areas having two adjacent colors of the three primary colors (red, blue, yellow) and intermediate colors thereof, and a dark clear color is formed on the base end side of the shaft. The paint coating region, a clear paint coating region of an intermediate color at the tip thereof, and a clear paint coating region of a light color at the tip thereof are formed, and the metallic paint layer is exposed at the tip of the shaft. The shaft for golf clubs according to any one of claims. Wherein the plurality color clear coating paint area of the one of the golf club shaft according to claim 1, characterized in that it is formed by the thermal transfer method.   The golf club shaft according to any one of claims 1 to 5, wherein a transparent clear paint layer is formed on the outermost layer of the shaft.

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