JP2004321453A - Japanese lacquered bat and manufacturing method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the problem that the batting performance and the hitting feeling are not sufficient by a conventional bat wherein a synthetic resin coating such as a lacquer is applied on the surface of a timber resulting from that the synthetic resin coating is not good in flexibility and tenacity. <P>SOLUTION: On the whole area of the surface of a bat material made of a timber 5, a Japanese lacquer film 6 comprising a raw Japanese lacquer is formed, and in addition, the Japanese lacquer film is being exposed for a grip part. Then, for a hitting part, a surface skin 7 made of a red mud added Japanese lacquer or the like is formed on the top of the Japanese lacquer film 6. A natural Japanese lacquer such as the raw Japanese lacquer is equipped with hardness and a proper toughness and flexibility, and also, the Japanese lacquer itself is hard and forms a strong film by firmly and closely joining to the timber, and therefore, an excellent batting performance and a favorable hitting feeling can be presented. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bat for hitting a ball, for example, a bat used for baseball, softball, a rounder or similar game, cricket, cloquet, hockey, etc., particularly for baseball, and more specifically, a bat coated with lacquer. And a manufacturing method thereof.
[0002]
[Prior art]
In general, a baseball bat has a predetermined size determined by baseball rules, and is made of a single piece of wood or two or more pieces of wood joined together with an adhesive. In addition, although paint on the surface is allowed for finishing, in current professional baseball, colored bats are generally prohibited, but only dark brown is allowed.
[0003]
Conventional baseball bats are made of wood that has high elasticity such as Aodamo and white ash, and is strong and hard to break. After processing the wood into a predetermined shape, the surface is coated with a synthetic resin paint such as lacquer. ing.
[0004]
[Problems to be solved by the invention]
The synthetic resin paint applied to the surface of the bat for baseball is hardened and becomes a pliable state having poor flexibility and toughness, which causes the repulsive force inherent to the wood itself to be hindered, such as the flying of the ball. The performance as a bat and the hit feeling are reduced.
[0005]
In addition, the synthetic resin paint has insufficient affinity (adhesiveness) with wood and lacks flexibility and toughness, so that it can be peeled off relatively easily by hitting with a ball. The function as a protective film is low. As a result, water or the like enters the wood of the bat body from the place where the paint is peeled off, and the performance such as repulsion of the bat is degraded relatively early.
[0006]
In addition, Aodamo, which is favorably used as a bat material due to its excellent elasticity, toughness and whiteness of the material color, has become a shortage of raw materials, and recently, other wood or plywood materials such as white ash, maple, wig, etc. Although used as a bat material, those obtained by applying the above-mentioned synthetic resin paint to the bat material are inferior in repulsive force and the like and cannot exhibit sufficient performance as a bat.
[0007]
Then, this invention aims at providing the bat which solved the subject mentioned above by coating the surface with lacquer, and its manufacturing method.
[0008]
[Means for Solving the Problems]
The present invention according to claim 1 is a bat (1) for hitting a ball.
A lacquer film (6) made of natural lacquer is formed on the entire surface of the wood (5) having a predetermined shape,
Located on a lacquered bat.
[0009]
The present invention according to claim 2 is characterized in that the bat (1) has a grip portion (3) and a striking portion (2),
At least the striking part (2) is formed by forming a surface film (7) on the lacquer film (6).
It exists in the lacquered bat of Claim 1.
[0010]
As for this invention which concerns on Claim 3, the said grip part (3) exposes the said lacquer film (6),
It exists in the lacquered bat of Claim 2.
[0011]
This invention which concerns on Claim 4 has the surface lacquer film (8) which the said lacquer film (6) consists of raw lacquer, and the said surface film (7) consists of at least a red lacquer,
It exists in the lacquered bat of Claim 2 or 3.
[0012]
The present invention according to claim 5 is a step (S2 to S4) of applying natural lacquer (12) to the entire surface of a bat material (1a) made of wood and having a grip portion (3a) and a hitting portion (2a). ,
After masking (13) the grip portion (3a) of the bat material (1a) (S5), forming a surface film on the striking portion (2a) (S6-S8),
A method for producing a lacquered bat comprising:
[0013]
In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not have any influence on the structure of a claim by this.
[0014]
【The invention's effect】
According to the first aspect of the present invention, natural lacquer such as raw lacquer has hardness and appropriate toughness and flexibility, and natural lacquer made of sap is excellent in affinity with bat material made of wood, It follows the deformation of the bat wood and its restoration at the time of hitting the ball well, without damaging the repulsive force based on the deformation and restoration of the wood, and the natural lacquer itself being hard, Etc. It has an excellent function as a bat and a good hitting feeling.
[0015]
In addition, natural lacquer penetrates into the wood and firmly adheres to the wood to form a robust lacquer film, so that the above-described excellent functions can be maintained over a long period of time. As mentioned above, it does not impair the performance of the wood such as repulsive force, and supplements the performance of the wood by its hardness etc., so it is relatively easy to use other wood without using Aodamo etc. Good bat performance can be maintained.
[0016]
According to the second aspect of the present invention, since the surface film is formed at least on the hitting portion, the hitting portion on which the ball hits is firmly protected and the durability is improved.
[0017]
According to this invention which concerns on Claim 3, since the lacquer film which consists of raw lacquer is exposed to the grip part, the rough feeling of the wood base | substrate by this raw lacquer remains, and it can obtain the grip feeling by appropriate frictional force.
[0018]
According to the fourth aspect of the present invention, the striking part is composed of at least a surface film composed of red lacquer on a lacquer film composed of raw lacquer, so that the bat can be changed by changing the hue between the grip part and the striking part. In addition to improving the aesthetics of the bat, it can be finished smoothly and can improve performance and durability as a bat.
[0019]
According to the fifth aspect of the present invention, the natural lacquer is applied to the entire surface of the bat material, masked, and then the surface film is formed on the hitting portion. Therefore, the bat having the above-described excellent performance can be easily manufactured. .
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a view showing a baseball bat according to the present invention. The bat is made of a peeled material such as Aodamo or white ash or a plywood material joined with a plurality of pieces of wood, and has a striking portion having a predetermined thickness (7 cm or less). 2, a grip portion 3, and an expanded diameter portion 5 at the end. The striking part 2 is made of dark lacquer and then reddish lacquer, and is dark brown, and has a thin and glossy wood surface and a glossy smooth surface. The grip portion 3 and the expanded diameter portion 5 are light brown with raw lacquer being applied, and the grain of the wood is clearly visible and there is a feeling of roughness of the wood. The raw lacquer and lacquered lacquer, which are natural lacquers, make the bat material's grain of tea-based streaks in the white system more distinctly raised, creating an excellent aesthetic sense as a bat.
[0021]
FIG. 2 is an enlarged view in which a part of the striking portion 2 is cross-sectioned. Raw lacquer is first applied to the entire surface of the wood 5 to form a lacquer film 6. The lacquer film 6 penetrates into the wood and adheres firmly to the wood 5. Moreover, in the hit | damage part, refined lacquers, such as red lacquer | lacquer | lacquer, are applied on the raw lacquer film 6, and the surface lacquer film 8 is formed. The surface lacquer film 8 is preferably a transparent lacquer having a gloss and transparency, and in particular, a red lacquer. Further, a protective film 9 made of a synthetic resin paint such as urethane resin is applied on the surface lacquer film. The protective film protects the surface lacquer film 8 and displays the bat manufacturer name. Necessary. A surface film 7 is formed by the surface lacquer film 8 and the protective film 9.
[0022]
Natural lacquer such as raw lacquer that is directly applied to the surface of the wood 5 to form the lacquer film 6 is a natural high molecular compound composed of rubber, laccase, nitrogen-containing content, moisture and a trace amount in addition to urushiol. However, urushiol is bonded and cured under normal temperature in a humid environment by an enzyme reaction with laccase present in an extremely small amount of about 0.2% in the urushiol. At this time, the rubber surrounding the water surrounds and disperses in the urushiol, and gives the coating film an elastic force, whereby the high hardness and high yield value of natural lacquer, especially raw lacquer (2.66 [dyne / cm ² ]), the lacquer film 6 has both hardness and moderate toughness and flexibility (flexibility).
[0023]
Therefore, the bat 1 having the lacquer film 6, particularly the lacquer film 6, strikes the bat 1 due to the characteristics of the film and the strong affinity with the bat material made of the same wood as the lacquer made of sap. When the ball hits the part 2, it has a good flying and hitting feeling without impairing the repulsive force of the wood itself, and further prevents the lacquer film 6 from peeling off and has durability. That is, when the ball hits the bat and the wood 5 is deformed and restored, the lacquer film 6 follows the deformation / restoration well due to its toughness and flexibility, and the repulsive force of the wood based on the deformation / restoration is improved. Without any loss, the hardness of the raw lacquer can further improve the performance of the wood, and can bring out the good bat performance. Moreover, in addition to the toughness and flexibility of the lacquer film, raw lacquer adheres to the wood with a strong adhesive force and forms a strong film. By preventing intrusion, the above-described performance can be maintained for a long time.
[0024]
The surface film 7, especially the surface lacquer film 8, is preferably natural lacquer such as lacquered lacquer in view of the above characteristics (Rigid and Flexible). In addition, the gloss and luster peculiar to lacquer enhances the aesthetics of the bat. However, the surface coating 7 is not necessarily limited to natural lacquer because natural lacquer has insufficient light resistance and is expensive, and a synthetic resin such as polyurethane resin having hardness and flexibility relatively close to lacquer. It may be used. In addition, the protective film 9 may not be present, and the surface lacquer film 8 may be exposed. Further, the protective film 9 may be applied not only to the striking portion 2 but also to the entire bat including the grip portion 3 and the tree diameter portion 5.
[0025]
Next, a method for manufacturing a lacquered bat according to the present invention will be described with reference to FIGS. 3 and 4. First, suitable wood is cut to form a bat shape (see S1 in FIG. 3 and FIG. 4A). Next, the first lacquer 12 is applied to the entire surface of the bat material 1a made of wood (S2). In this step, as shown in FIG. 4B, the surface of the bat material 1a is rubbed with lacquer with a cloth 11 with raw lacquer (slid lacquer), and in some cases, lightly wiped with a cloth after applying lacquer. Apply raw lacquer 12 to the entire bat material using (wiping lacquer) or the like. And after drying the lacquer, the center sharpening which smoothes the surface of the said raw lacquer is performed by the manual work by Park charcoal etc., or the mechanical polishing by the buff etc. (S3). Thereafter, a second lacquer coating operation is performed in the same manner as described above (S4). The steps S2 to S4 are processes for applying natural lacquer.
[0026]
Then, after drying the second raw lacquer, the portion 3a corresponding to the grip portion is masked (S5). As shown in FIG. 4 (c), the masking operation is performed by winding the tape 13 around a portion 3a corresponding to the grip portion in the state where the raw lacquer is applied, and with the grip portion equivalent portion 3a, particularly the striking portion equivalent portion 2a. Cover the boundary 14 over a predetermined length and expose the striking portion equivalent portion 2a. In the masked state, a red lacquer coating operation is performed (S6). As shown in FIG. 4 (d), the red lacquer lacquer 15 is applied to the striking portion equivalent portion 2 a with the brush 16, including the masking 13 portion.
[0027]
After drying the coating of the red lacquer 15, as described above, the center polishing is performed, which is a polishing operation for smoothing and polishing the portion coated with the red lacquer by manual or mechanical work ( S7). After that, finish coating with a transparent urethane resin paint is performed (S8), and the urethane resin paint is smoothly applied to the striking portion 2 on the red lacquer 15 to finish it with a dark brown glossy texture. In addition, you may finish the finish coating of step S8 smoothly with natural lacquers, such as a red lacquer, instead of a urethane resin coating material. Further, a urethane resin paint may be applied after the finish coating with the red lacquer. Said step S6-S8 is a process of forming a surface film.
[0028]
Furthermore, the grip part 3 made of raw lacquer 12 and the striking part 2 made of vermilion lacquer 15 are clearly partitioned by peeling off the tape 10 masked in step S5. As a result, the bat 1 coated with natural lacquer, which is adhered to the bat material 1a with a strong adhesive force and has both hardness and moderate toughness, is completed.
[0029]
In the above-described embodiment, raw lacquer 12 is used for lacquer film 6 applied to the entire surface of the bat material. However, the present invention is not limited to this, and other natural lacquer such as transparent lacquer may be used. Although synthetic lacquer is used, it may be oil-based, oil-free, or other natural lacquer such as black lacquer, or a synthetic resin paint such as polyurethane resin. Moreover, although the above-mentioned embodiment demonstrated the baseball bat, it is needless to say that it can be similarly applied to a batting bat of other games such as softball and cricket.
[Brief description of the drawings]
FIG. 1 is an overall front view showing a lacquered bat according to the present invention.
FIG. 2 is an enlarged cross-sectional view schematically showing a cross section of a surface portion in a hitting portion.
FIG. 3 is a flowchart showing a method for manufacturing a lacquered bat according to the present invention.
4A, 4B, 4C, and 4D are diagrams showing manufacturing steps in different states.
[Explanation of symbols]
1 Bat 1a Bat material 2, 2a Strike part (corresponding part)
3, 3a Grip part (corresponding part)
5 Wood 6 Lacquer film (raw lacquer)
7 Surface coating 8 Surface lacquer coating (Shiki lacquer)
9 Protective film (urethane resin)
12 Raw lacquer 13 Masking (tape)
15 Zhuai Lacquer

Claims (5)

In the bat that hits the ball,
A lacquer film made of natural lacquer is formed on the entire surface of wood of a predetermined shape.
Lacquered bat. The bat has a grip portion and a striking portion,
At least the striking part is formed by forming a surface film on the lacquer film,
The lacquered bat according to claim 1. The grip portion is formed by exposing the lacquer film.
The lacquered bat according to claim 2. The lacquer film is made of raw lacquer, and the surface film has a surface lacquer film made of at least a red lacquer,
The lacquered bat according to claim 2 or 3. A process of applying natural lacquer to the entire surface of the bat material made of wood and having a grip portion and a striking portion;
After masking the grip portion of the bat material, forming a surface film on the hitting portion;
A method for producing a lacquered bat comprising:

Images