JPH02156967A - Manufacture of wooden striking tool - Google Patents

Abstract

PURPOSE:To prevent the surface color from being deteriorated after the formation of breakage on the surface, aging of coated film, and even a part is shaved off and improve strength, resilience, and striking noise by immersing a shaved article into an oil base dyestuff solution after the decompression for a certain time and pressurizing said article and then carrying out the natural drying and then heating said article by high frequency. CONSTITUTION:A shaved article 1 which is formed by shaving a hard wooden material into a gold club head for is put into a decompression/pressurizing chamber 2, and the inside pressure is reduced by a pressure reducing pump P1, and this state is kept for a certain time. Then, the oil base dyestuff 4 in a dyestuff tank 3 is introduced into a decompression/ pressurizing chamber 2, and the shaved article 1 is immersed into the oil base dyestuff liquid 4. In this state, the inside of the decompression/pressurizing chamber 2 is pressurized by a pressurizing pump P2, and this state is kept for a prescribed time. The shaved article 1 which is impregnated with the dyestuff liquid 4 is taken out from the decompression/ pressurizing chamber 2, and after the natural drying, the inside heating by high frequency is carried out to perfectly dry the inside. The oil base dyestuff liquid 4 is formed by carrying out urethane bond forming modification of the dry oil and mixing the oil solution which is obtained by adjusting the above-described dry oil to a prescribed concentration, with the oil dyestuff to a prescribed color tone.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to golf wood heads, baseball wooden bats,
Alternatively, the present invention relates to a method of manufacturing a wooden ball hitting tool such as a gateball stick.

[Prior Art] Conventionally, wooden ball hitting tools are made by carving hard wood into a desired shape, and then coloring the surface of the carved product to enhance its decorativeness.

In addition, in order to strengthen the wooden material, improve its elasticity, and improve the sound of hitting the ball, it was treated with an oil treatment by soaking it in a drying oil such as linseed oil and drying it naturally.

[Problems to be solved by the invention] Conventional coloring processes simply paint the surface of the cut product, so it may be necessary to remove some scratches when hitting the ball, aging of the paint film, or to adjust the balance. If this was done, the paint film would be missing in some areas, exposing the wood fabric, resulting in a significant loss of commercial value.

Furthermore, regarding oil processing, conventionally the excavated parts were soaked in drying oil, so only the surface layer was processed, and drying was only done by natural drying, which took time. There was a problem with the exclusive use that if the drying was insufficient, there was a risk that the coating film would peel off.

[Means for Solving the Problems] The present invention was made for the purpose of eliminating all the problems of the above-mentioned prior art, and involves cutting hard wood into a desired shape,
The removed amount is depressurized, placed in a pressurized chamber and depressurized for a certain period of time, and then an oil-based dye solution prepared by suitably mixing an oil solution based on drying oil and an oil-based dye is placed in the depressurized and pressurized chamber. The scraped area was immersed in an oil-based dye solution, the pressure was reduced in this state, the pressurized chamber was pressurized for a certain period of time, the oil-based dye liquid was allowed to penetrate inside the scraped area, and the scraped area was allowed to dry naturally. The present invention provides a method for manufacturing a ball hitting tool which is then dried by internal heating using high frequency waves.

[Function] After depressurizing the cut amount for a certain period of time, it is immersed in an oil-based dye solution and pressurized, so that the oil-based dye solution penetrates into the deep layer of the cut amount. Furthermore, if the removed amount is air-dried and then internally heated using high frequency, drying can be done quickly and reliably.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

For example, a persimmon tree is used as the hard wood, and this wood is cut into the shape of a golf club wood head as shown in FIG.

The depressurization/pressurization chamber 2 that accommodates the removed amount 1 is formed by connecting a decompression pump P and a pressure pump P2 and a dye tank 3 in a hermetically divided container.

First, the removed amount 1 is depressurized and put into the pressurizing chamber 2, and the inside is depressurized to about 700 mm and 14 g by the decompression pump P, and this is continued for about 15 minutes. Next, the oil-based dye 4 in the dye tank 3 is depressurized and put into the pressurized chamber 2, and the removed amount 1 is immersed in the oil-based dye liquid 4. This oil-based dye solution 4 consists of an oil solution (oil content 25%, solvent 75%) obtained by modifying a drying oil such as linseed oil to urethane and adjusting the oil content to the required concentration with a diluting solvent, and an oil-based dye. It is a mixture of the following to achieve the desired color tone.

As mentioned above, the amount of removal 1 is reduced to 4 oil-based dye liquids.
The pressure inside the pressurized chamber 2 is reduced to 8 kg/aJ to 10 kg/cIl by the pressurizing pump P2, and the pressure is continued for about 2 hours. In this process, the oil-based dye solution 4 penetrates into the deep layer of the removed amount 1.

The cut amount 1 soaked with the oil-based dye solution 4 is then taken out from the pressurized chamber 2 under reduced pressure and left to dry naturally for 1 to 3 days. Next, internal heating is performed using high frequency to completely dry the inside.

In addition, in this embodiment, an example is shown in which the cutting amount 1 is in the shape of a wood head of a golf club.

It can also be applied to all wooden batting tools such as wooden baseball bats and gateball sticks.

[Effects of the Invention] As described above, according to the present invention, the oil-based dye solution 4, which is a mixture of an oil solution and an oil-based dye, penetrates into the deep layer of the removed amount 1, thereby preventing scratches on the surface and aging of the coating film. , or even if a part is scraped off for balance adjustment etc., the color of the surface will not be impaired and the aesthetic appearance can be maintained for a long period of time.

In addition, since the oil-based dye liquid 4 is penetrated into the deep layer and completely dried from the inside by high frequency, the strength of the material, elasticity, and impact sound are dramatically improved compared to conventional products.

Moreover, the present invention can be implemented with simple equipment, and has the effect of providing high-quality products simply and at low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the amount removed, and FIG. 2 is a sectional view showing the depressurization and pressurization chambers. 1... Removal amount, 2... Decompression, pressurization chamber, 4... Oil-based dye solution.

Claims (1)

[Claims] Oil-based dyeing is made by carving hard wood into the desired shape, reducing the pressure of the wood, placing it in a pressurized chamber, depressurizing it for a certain period of time, and then appropriately mixing an oil solution based on drying oil with an oil-based dye. The liquid is placed in the depressurizing and pressurizing chamber to immerse the excavated product in the oil-based dye liquid, and in this state, the pressure is reduced and the pressurizing chamber is pressurized for a certain period of time to allow the oil-based dye liquid to penetrate into the inside of the excised product. A method for manufacturing a wooden ball hitting tool, characterized in that the carved product is air-dried and then internally heated using high frequency waves to dry it.