JP3618149B2 - How to cut table tennis racket rubber - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a table tennis racket rubber cutter base for facilitating the work of cutting off the extra rubber protruding outward from the edge of the ball striking surface when the rubber is affixed to the ball striking surface of the table tennis racket body. In particular, the present invention relates to a table tennis racket rubber cutting method that can smoothly and easily cut off the rubber protruding by cutting the rubber with a cutter while rotating the table tennis racket.
[0002]
[Prior art]
When attaching rubber to the table tennis racket, first attach a rubber that is larger than the part (area) of the racket to the racket body with an adhesive, and the adhesive will dry sufficiently to fix the rubber to the racket. After that, cut off the excess rubber protruding from the edge of the racket along the edge of the racket with a scissor, or hold the cutter with another hand while holding the racket with the rubber surface down and racket the blade edge. A method of cutting excess rubber while moving the cutter along the edge of the was taken.
[0003]
[Problems to be solved by the invention]
However, when cutting excess rubber with a scissors, it is difficult to cut according to the shape of the racket, and the side surface of the racket is uneven, and the racket cannot be completed with good appearance. Even when a cutter is used, even when a cutter is used along the edge of the fixed racket, if the cutter blade edge is moved along the edge of the fixed racket, While moving (rotating), it became difficult to cut at hand, and it was difficult to cut smoothly.
[0004]
Therefore, according to the present invention, the cutting edge of the cutter is applied to the edge of the racket, the cutter is set as a localization value, and the extra rubber protruding from the edge of the racket body can be easily cut by rotating the racket body. An object is to provide a rubber cutting method.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned purpose, in the rubber cutting method for table tennis rackets that cuts unnecessary portions of the rubber with the rubber stuck to the blade,
Using a table tennis racket rubber cutter table in which a mat is attached to the surface of a rotating plate that is rotatably supported with respect to a fixed substrate, and a positioning piece for positioning a table tennis racket is installed on the edge of the rotating plate. ,
On the mat of the table tennis racket rubber cutter table, the ball hitting surface on the rubber attaching side of the table tennis racket on which the rubber for table tennis racket is attached before cutting is brought into contact, and the rubber on the table tennis racket grip side of the rubber is brought into contact. Place the end face engaged with the positioning piece, press the cutter against the edge of the table tennis racket, and cut the unnecessary portion of the rubber while rotating the rotating plate. the assumed to be characterized.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view of a cutter table of a table tennis racket rubber. Reference numeral 1 denotes a fixed substrate of a rubber cutter base made of a wooden material having a square shape and a chamfered corner. Reference numeral 2 denotes an anti-slip mat that covers the entire lower surface of the fixed substrate 1 and is fixed with an adhesive. Reference numeral 3 denotes a rotating plate having the same shape and the same material as that of the fixed substrate 1 rotatably mounted on the fixed substrate 1. 4 is an adhesive that covers the entire upper surface of the rotating plate 3 so as not to damage the rotating plate 3 when a table tennis racket (not shown) is placed and an excess portion of the rubber stuck under the table tennis racket is cut with a cutter. It is a fixed mat. Since the mat 4 is scratched by a cutter when the rubber is cut, the mat 4 cannot be used as a protective material that does not damage the rotating plate 3 if used several times. Therefore, the mat 4 needs to be replaced. Reference numeral 5 denotes a positioning piece made of a mat material, which is fixed to one edge of the chamfered square mat 4 with an adhesive, and is attached to a table tennis racket to fix the position of a rubber (not shown) to be cut with a cutter. belongs to.
[0007]
2 is a cross-sectional view of the cutter base of the table tennis racket rubber shown in FIG. Since the same reference numerals as those in FIG. 1 denote the same members, description thereof is omitted. The bearing receiving plate 6 is a metal disc having a diameter shorter than the length of one side of the square of the substrate 1 and is fixed on the fixed substrate 1 by bonding or bolting so that the centers of the fixed substrate 1 and the bearing receiving plate 6 coincide. Has been. The bearing receiving plate 7 is a disc of the same material and the same diameter as the bearing receiving plate 6, and is fixed below the rotating plate 3 with an adhesive or a bolt so that the centers of the rotating plate 3 and the bearing receiving plate 7 coincide. The rotating shaft 8 is attached by welding so that the center of the rotating shaft 8 coincides with the center of the bearing receiving plate 7. The length of the rotating shaft 8 is shorter than the thickness of the bearing receiving plate 6 and the substrate 1. The bearing receiving plate 6 is provided with a hole 6a so that the rotary shaft 8 is slidably inserted. Since the hole 6 a is provided so that the center of the hole 6 a coincides with the center of the bearing receiving plate 6, the centers of the fixed substrate 1 and the rotary plate 3 substantially coincide. A screw portion 8a is provided at the lower portion of the rotating shaft 8, and the screw portion 8a is screwed with a shaft locking nut 9 in a groove 1a provided in the fixed substrate 1 so that the rotating plate 3 is not detached from the fixed substrate 1. To do. The groove 1a is a stepped cylindrical groove having the same center, the upper stage is slightly larger than the hole 6a, and the lower stage has a size that can be turned by a shaft locking nut 9 with a jig (not shown), and the center of the groove 1a is fixed. Match with the center of the substrate 1. The screw portion 8a prevents the rotation plate 3 and the fixed substrate 1 from reaching the upper and lower boundaries of the groove 1a of the fixed substrate 1 so that the rotating plate 3 and the fixed substrate 1 are not fixed by the shaft locking nut 9. To the extent that it does not deviate from 6b, 7b, the groove 1a is provided as close to the upper and lower borders.
[0008]
The bearing receiving plates 6 and 7 have bearing receiving grooves 6b and 7b, respectively. The bearing receiving groove 6b has a spherical groove slightly larger than the bearing and shallower than the bearing radius so that the bearing does not move. Only the bearing receiving plate 6 is provided at equal intervals from the center of the bearing receiving plate 6 at the same radius. In the bearing receiving groove 7b, an annular groove having a small radius slightly larger than the bearing and a depth shallower than the radius of the bearing is formed at the center of the rotating shaft. The large radius of the bearing receiving groove 7b is made equal to the radius of the bearing receiving groove 6b from the center of the bearing receiving plate 6 so that the bearing 10 accommodated in both grooves can rotate smoothly. Therefore, when the rotating plate 3 is pushed, the rotating plate 3 rotates smoothly on the fixed substrate 1.
[0009]
FIG. 3 is a view of cutting the rubber by actually placing the table tennis racket on the rubber cutter table. After a rectangular rubber 12 is attached to the table tennis racket 11 with an adhesive and is sufficiently fixed, the rubber 12 is placed on the lower side, and the rubber grip 13 side end surface is placed so that it is just engaged with the positioning piece 5. If the rotating plate is gradually turned while pressing the racket 14 against the edge of the racket and pressing the racket against the rotating plate, the rubber 12 is smoothly cut and a clean end face matching the edge of the racket is obtained.
[0010]
【The invention's effect】
By cutting the rubber while rotating the rotating plate using a dedicated table tennis racket rubber cutter table, the excess rubber part that is stuck and fixed to the table tennis racket can be cut smoothly and in a short time. A good looking racket can be completed.
[Brief description of the drawings]
FIG. 1 is a perspective view of a cutter base of a table tennis racket rubber.
FIG. 2 is a cross-sectional view of a cutter base AA of a table tennis racket rubber.
FIG. 3 is a perspective view of the table tennis racket rubber when the cutter table is used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Fixed board | substrate 1a ... Groove 2 ... Anti-slip mat 3 ... Rotating plate 4 ... Mat 5 ... Positioning piece 6 ... Bearing receiving plate 6a ... Hole 6b ... Bearing receiving groove 7 ... Bearing receiving plate 8 ... Rotating shaft 8a ... Screw part 9 ... Axle lock nut 10 ... Bearing 11 ... Racquet 12 ... Rubber 13 ... Grip 14 ... Cutter

Claims (1)

In the method of cutting rubber for table tennis rackets that cuts unnecessary parts of rubber with rubber attached to the blade,
Using a table tennis racket rubber cutter table in which a mat is attached to the surface of a rotating plate that is rotatably supported with respect to a fixed substrate, and a positioning piece for positioning a table tennis racket is installed on the edge of the rotating plate. ,
On the mat of the table tennis racket rubber cutter table, the hitting surface on the rubber attaching side of the table tennis racket on which the rubber for table tennis racket is attached before cutting is brought into contact with the table tennis racket grip side of the rubber. Place the end surface engaged with the positioning piece, and cut the unnecessary portion of the rubber while pressing the cutter against the edge of the table tennis racket placed above and rotating the rotating plate. How to cut table tennis racket rubber.

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