Baseball bat structure and manufacturing method thereof

Abstract

The invention discloses a baseball bat structure and a manufacturing method thereof. The baseball bat comprises a hitting part, a holding part and a transitional part for connecting the hitting part and the holding part, wherein the baseball bat further comprises a hard rod member which is located in the center of the baseball bat; the hitting part of the baseball bat is made of a wooden material, and an axial through hole is formed in the center of the hitting part; one end of the hard rod member extends into the through hole of the hitting part; the transitional part of the baseball bat andthe holding part are made from PU (polyurethane) material by injection and foaming; the hard rod member is wrapped in the centers of the transitional part and the holding part and simultaneously the through hole of the hitting part is filled with PU material. Accordingly, the baseball bat is superior in impact resistance, has a longer service life and less consumption of wood plates, and meets the requirements for low carbon and environmental friendliness. The PU material has features of wide adjustable ranges in hardness, density, elasticity and extensibility and good shock-absorbing property, which allows the weight of the baseball bat to be adjusted more easily during the production process and facilitates the production of high-quality and light-weight baseball bats.

Description

Technical field [0001] The invention is about a baseball stick, especially a baseball stick structure and its production method. Background technique [0002] Baseball is a kind of ball movement with the main characteristics of battles, collective and confrontation; it has a wide range of international development and has a large impact. It is known as "the combination of competition and wisdom"; in the United States, Japan is particularly prevalent, known as the "national ball". [0003] The ball used for hitting the ball is cylindrical, cooperates figure 1 It shows that it is composed of a thicker strike part 1 ', a more detailed grip of the rear, and the connection department 3' transitioning from the Hitting Department 1 'to the Holding Department 2.Make a lot of wood processing, the weight of the overall ball is heavier. For the striker, if it is not a larger arm force, it will slow down due to the speed of the waist turning and the smaller momentum.The ball cannot fly far; ...

AI Technical Summary

Problems solved by technology

[0003] The bat used for hitting the ball has a cylindrical shape and fits the figure 1 As shown, it consists of a thicker hitting part 1' at the front, a thinner grip part 2' at the rear and a connecting part 3' transitioning from the hitting part 1' to the grip part 2'. The traditional ball The bat is mostly made of wood, so the weight of the overall bat is relatively heavy. For the batter, if it is not for the greater arm strength, the swing speed of the waist will slow down when swinging the bat, which will reduce the momentum of hitting the ball. The ball cannot fly very far; in addition, due to limited wood resources, the cost of bat wood remains high

Therefore, aluminum bats appeared, but the feel and texture of this bat when hitting the ball are not comparable to those of wooden bats. At the same time, when the bat is harder, the arm will be more injured. This case is thus produce

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