JP3021181U - Gateball stick head - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a head with a reinforcing ring that is lightweight and does not have screws. [Structure] A resin ring having a protrusion on the inner peripheral side and a head main body having a notch portion at the end of a hit ball provided with a receiving groove matching the protrusion are press-fitted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stick head with a reinforcing ring for a gate ball.

[0002]

[Prior art]

 A brass or aluminum ring was fixed with a fastener such as a screw.

[0003]

[Problems to be Solved by the Invention]

 Since the metal ring is heavy, the entire head becomes heavy. The ring fixing screw is unpleasant and is not good.

[0004]

[Means for Solving the Problems]

 A locking projection is attached to the inside of the resin ring with high impact resistance, and a groove is formed in the notch of the body that receives the ring to receive this projection. The diameter of the protrusion is made smaller than the diameter of the notch in the body that receives the ring. When the ring is pressed into the main body thus formed, the ring expands due to the elasticity of the resin and pushes forward, and finally the protruding part is placed in the receiving groove on the main body side, and the ring is fixed to the main body by the elastic recovery of the resin.

[0005]

[Action]

 Using the rigidity of the main body and the elasticity of the resin ring, the locking projection and the receiving groove are fitted and fixed.

[0006]

【Example】

 Prepare a ring (1) made of nylon resin with an outer diameter of 45 mm, an inner diameter of 35 mm, a width of 20 mm, and a concentric circular protrusion (2) with a height of 0.2 mm. On the other hand, a reinforced wooden head with a diameter of 45 mm and a length of 24 cm. A notch (4) with a diameter of 35 mm and a width of 20 mm is accurately provided at the hitting end of the main body (3), and further in this notch part. A 0.3 mm deep receiving groove (5) is provided to match the protrusion (2) on the inner circumference of the ring. The resin ring and the main body thus formed are pressed into each other. The head of the present invention is completed when the protrusion (2) is received in the receiving groove (5).

[0007]

【The invention's effect】

 By adopting a resin ring, it was 195 grams lighter than brass of the same size and 35 grams lighter than aluminum. In addition, the protrusion using the elasticity of the resin and the press-fitting of the receiving groove structure prevent the ring from coming off without using a set screw.

[Brief description of drawings]

FIG. 1 is a diagram of a stick head with a reinforcing ring for a gate ball according to the present invention.

FIG. 2 is a partially enlarged view of the ring on the left side of the head in FIG.

[Fig. 3] Conventional stick with reinforcing ring for gate ball

[Explanation of symbols]

 1 Resin Ring 2 Protrusion 3 Head Body 4 Notch 5 Receiving Groove 6 Stick Shaft Connection Hole 7 Shaft 8 Metal Ring 9 Ring Set Screw

Claims (1)

[Scope of utility model registration request] 1. A resin ring having locking projections on its inside is provided with a notch formed in accordance with the shape of the ring in order to prevent the end of the hitting ball from being damaged in a head body made of reinforced wood or a material similar thereto. A stick for a gate ball, which is press-fitted and fixed to the end of the main body with a receiving groove that has a detent effect matched with the locking projection by using the elasticity of resin.