JP2001009061A - Light grip sporting goods and their production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light grip sporting grip which is a light grip sporting grip relatively small in gripping force in the grip at the time of use like a grip for a jumping rope and which imparts the antislip effect higher than heretofore to the grip, lessens the slip by sweat, lessens the deterioration of the grip part by the sweat, etc., and has durability in combination. SOLUTION: The antislip part of the light grip sporting goods provided with the antislip part in a specified portion of the surface of the grip consists of a urethane coating film of 0.1 to 2 mm in thickness. This urethane coating film is a foamed film and is a porous film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grip for a tobinawa grip, a ground golf club, a gate ball stick, a walking / hiking / climbing cane, and the like, which has a relatively small grip force when used.
The present invention relates to a lightweight grip sporting goods and a method for manufacturing the grip.

[0002]

2. Description of the Related Art Conventionally, there are few patents and utility models for ground golf clubs, gate ball sticks, walking / hiking / climbing sticks, including grips for tobinawa, baseball bats, golf clubs,
Many techniques are known for grips such as rackets. For example

A. JP-A-2-45778 Non-slip for gripping baseball bats, golf clubs, rackets, etc., provided with a latex layer by coating on the grip portion.
Nitrile rubber) is water-repellent, and does not exhibit a sufficient anti-slip effect in a sweaty and wet state.

B. This golf grip is coated with silicone that has good affinity with the hand, but still does not exhibit the anti-slip effect under wet conditions.

C. JP-A-4-253876 This is used for golf clubs, tennis rackets, and the like of a type in which a cylindrical member made of a thermoplastic resin having an anti-slip effect is inserted into a grip portion and then contracted by heating to adhere to the grip. From the present invention. Further, the shrink tape itself does not exhibit the anti-slip effect even in a wet state.

D. JP-A-55-130680 A polyurethane film is formed on one surface of a tape material such as leather.
Grip tape for baseball bats, tennis rackets, pole vault poles, etc., provided with a pressure-sensitive adhesive or the like on the back surface, and the grip body and the non-slip applying portion are not chemically bonded. On the other hand, in the present invention, the grip main body portion and the non-slip applying portion are chemically bonded, and there is a structural difference from JP-A-55-130680.

E. Japanese Utility Model Application Laid-Open No. 6-58967 A grip of a tennis racket, a golf club, or the like, which is formed by molding a synthetic rubber such as NBR to which a highly water-absorbent resin such as an acrylic polymer is added, and press-fitting the base of the grip. The part and the non-slip application part are not chemically bonded, and there is a clear structural difference. In addition, Japanese Utility Model Laid-Open No. 6-58967 does not mention the durability of the anti-slip portion.

F. 64-26060 A tape for gripping rackets, golf clubs, etc., in which convex portions made of a synthetic resin elastic material having a desired pattern are provided on the surface of a porous soft sheet obtained by applying a polyurethane coating to a nonwoven fabric. When it deteriorates, it is necessary to replace it, and the anti-slip effect rapidly decreases with time.

G. A non-slip sheet for grips, such as a racket, in which a transparent protective film is adhered to the non-slip surface of a porous soft sheet obtained by applying a polyurethane coating to a non-woven fabric. And the anti-slip effect decreases rapidly with time.

[0010] Regarding the grip for Tobinawa, it is known that the grip for Tobinawa is given a non-slip effect by physical processing to make the surface of the grip for Tobinawa uneven. Further, there is also a grip material for tobinawa in which a viscoelastic rubber is used to impart a non-slip effect.

[0011]

However, in the case of, for example, tobinawa grips, the anti-slip effect cannot be maintained when sweat is interposed between the grips and the hands, that is, in a wet state. Therefore, in the current state (physical processing / rubber material) of the tobinawa grip, a satisfactory effect is not obtained particularly in a sweaty and wet state.

An object of the present invention is to provide a grip having a relatively small grip force during use, similarly to a grip for a Tobinawa.
Provides a grip for light grip sports that has a more durable anti-slip effect, reduces slippage due to sweat, and reduces grip deterioration due to sweat etc. Is to do.

[0013]

SUMMARY OF THE INVENTION The present invention relates to a light grip sporting goods provided with a non-slip portion at a predetermined portion of the surface of the grip, wherein the non-slip portion is formed of a urethane coating having a thickness of 0.1 to 2 mm. The present invention relates to a light grip sporting goods characterized in that the urethane coating film is a foamed film and a porous film, and a method for manufacturing the grip.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a certain portion of the surface of a grip means a portion of the grip which is gripped at least by a palm, and at least a non-slip portion is required at that portion, which differs depending on sports equipment. Although the overall length of the grip portion varies depending on each sporting goods, the position of the non-slip portion is preferably 3 to 10 cm from the grip end in the case of the Tobinawa grip, and the weight of the urethane film of the non-slip portion is about About 0.5 to 3 g is preferable.

In the case of a ground golf club, the position is preferably 15 to 40 cm from the grip end, and the weight of the urethane film at the non-slip portion is preferably about 1 to 20 g. In the case of a gate ball stick, the position is preferably 15 to 40 cm from the grip end, and the weight of the urethane film at the non-slip portion is preferably about 1 to 20 g.
In the case of a walking / hiking / climbing walking stick, the position is preferably 5 to 30 cm from the grip end, and the weight of the urethane film in the non-slip portion is preferably about 1 to 10 g.

In order to make the urethane coating film of the non-slip portion a foamed film and a porous film, for example, taking a grip for Tobinawa as an example, first, polypropylene (PP), acrylonitrile / butadiene / styrene (ABS) resin ,
Polyvinyl chloride (PVC), polycarbonate (PC)
Blow molding of such thermoplastic resin, injection molding or the like to form a hollow grip base, and a hollow portion at one or both ends of the grip, a material that is not attacked by an organic solvent in which polyurethane is dissolved, for example, polyethylene, polypropylene After stoppering with a cap made of, for example, the product, the product is immersed (dipped) in an organic solvent solution of polyurethane. Then pull it up, put it in water and shake it gently,
As the organic solvent escapes into the water, pores are formed, and urethane reacts with the water to foam and form a porous foamed film. The urethane film is dissolved and chemically adhered to the grip base and bonded together so that it is not peeled off even in a scratch test. Next, it is taken out, dried and stoppered. In the case of other ground golf clubs, the urethane film can be formed in the same manner. The thickness of the urethane coating is 0.1 to 2 mm, preferably 0.5 to 1.5 m.
m.

[0017]

EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples of the present invention, but the present invention is not limited to these examples. Example 1 A hollow grip base made of acrylonitrile / butadiene / styrene (ABS) resin (MFR = 4.4 g / 10 minutes) and having the shape and size shown in FIG. 1 was plugged with polypropylene (PP) caps at both ends of the hollow. . The outer diameter of the non-slip part from the grip end to the position 100mm is 20m
m, the outer diameter from the position 100 mm from the grip end to the rope fixing position is 15 mm. The non-slip portion of this grip was immersed in a dimethylformamide (DMF) solution of ether-based polyurethane for 60 seconds and then pulled up. Then, the mixture was slowly shaken in water and taken out to obtain a grip of the present invention having a urethane porous membrane having a thickness of 0.8 mm. The weight of the urethane film is 1.0
g.

Comparative Example 1 An acrylic urethane-based paint was sprayed onto the same ABS resin grip base used in Example 1 to prepare a grip having a non-foamed coating film. Comparative Example 2 A grip was produced by winding a commercially available grip tape (ester-based polyurethane tape) around a grip base made of PP.

Comparative Example 3 Ethylene / vinyl acetate (EV)
A) A thickness of 0.8 made of resin (MFR = 350 g / 10 min)
mm shrink tape was wound and a heat-shrinkable grip was created with a dryer. Comparative Example 4 An SBR-based latex film was wound around a grip base made of PP to form a grip. Comparative Example 5 For comparison, only a PP grip which was not treated was evaluated.

Evaluation Method A. Table 1 shows the evaluation in a dry environment. 3 test subjects (certified by the INF International Jumping Federation,
(Three or more qualified persons) jumped forward and backward three times five times or more, and evaluated the grip of each grip in the following manner. ：: Easy to grip without slipping △: Slightly slipping ×: Slippery and difficult to grip B. Table 2 shows the evaluation in a humid environment. In order to investigate the influence of sweat, an appropriate amount of distilled water was dropped on each grip, and then spread evenly over the entire grip and evaluated in the same manner as in a dry environment. ○: Easy to grip without slipping △: Slightly slipping ×: Slippery and difficult to grip

[0021]

[Table 1]

[0022]

[Table 2]

C. Evaluation of Water Resistance (1) Each Sample Each sample of Example 1 and Comparative Examples 1 and 2 was processed into a 2.5 × 5.0 cm strip (having a thickness of 1 to 2 mm). (2) Deterioration promotion method These were left in a thermo-hygrostat at a temperature of 80 ° C. and a humidity of 95% RH.

(3) Deterioration Evaluation Method Each sample left for a certain number of days was taken out and subjected to a scratch test under the following conditions to evaluate the resistance to water deterioration. A. Measuring instrument HEIDON-14DR, a surface property measuring instrument manufactured by Shinto Scientific Co., Ltd.
Type B. Measurement conditions (a) Scratch partner material Jig made of steel 0.5 mm long x 4.0 mm wide (b) Load 200 gf (c) Sliding speed and distance 10 mm slide at 200 mm / min speed

(4) Results Five evaluations were made according to the manner of peeling of the slide area after scratching. The results are shown in FIG. (A) No peeling 5 points (b) 1/4 or less peeling 4 points (c) 1/4 to 1/2 peeling 3 points (d) 1/2 to full peeling 2 points (e) Overall peeling 1 point

[0026]

According to the present invention, there is provided a light-grip sporting goods which has a more durable effect by imparting an anti-slip effect more than before, reduces slippage due to sweat, and reduces grip deterioration due to sweat and the like. be able to.

[Brief description of the drawings]

FIG. 1 is a side view of a grip base used in an embodiment.

FIG. 2 is a graph showing the water resistance of the samples of Examples and Comparative Examples.

Continued on the front page (72) Inventor Ryuichi Hashimoto 7-1-1, Minatojima-Nakamachi, Chuo-ku, Kobe-shi, Hyogo F-term (reference) in ASICS Corporation 2C002 AA06 GG03 MM03

Claims (4)

[Claims] 1. A light-grip sports article provided with a non-slip portion on a predetermined portion of the surface of the grip, wherein the non-slip portion is formed of a urethane coating having a thickness of 0.1 to 2 mm, and the urethane coating is formed of a foamed film. And a light grip sporting goods characterized by being a porous membrane. 2. The light grip sporting goods according to claim 1, wherein the light grip sporting goods are tobinawa grips, ground golf clubs, gateball sticks, walking / hiking / climbing walking sticks. 3. The grip base is immersed (dipped) in a solution of polyurethane in an organic solvent, and then pulled up and put in water to allow the organic solvent to escape into the water to form pores, and to form urethane and water. A method for producing a grip for a light-grip sports article, comprising reacting and foaming to form a porous foamed film, and then removing and drying the film. 4. The grip base is immersed (dipped) in a solution of polyurethane in an organic solvent, then pulled up and put in water to allow the organic solvent to escape into the water, form pores, and remove urethane and water. A grip for light grip sports equipment manufactured by reacting and foaming to form a porous foamed film, and then removing and drying the film.