TWM601128U - Composite bat - Google Patents

Abstract

This creation is about a composite bat, which includes a rod body and a tube body. The rod body is made of multi-layer fiber composite materials to form a hollow hitting part, a gripping part and a neck. The neck is connected between the hollow hitting part and the gripping part, and the outer diameter of the neck is hollow. The hitting part gradually decreases toward the gripping part, the tube is coaxially arranged in the hollow hitting part of the rod, and the hardness of the tube is greater than the hardness of the hollow hitting part of the rod. In this way, the composite bat of the invention can use the tube to improve the shot effect while reducing the weight.

Description

Compound bat

This creation is related to bats, especially a composite bat that reduces weight and improves the effect of hitting the ball.

Generally speaking, bats are mainly divided into wooden bats and aluminum bats. As far as wooden sticks are concerned, due to the heavier weight of wooden sticks, it is generally more difficult for a hitter to swing the stick, and the swing speed is slower, so the ball shot out is often not strong enough. As for the weight of aluminum sticks, they are lighter than wooden sticks. And it has a higher rebound coefficient than the wooden stick, so it can hit the ball farther with its own good elasticity. However, the disadvantage of the aluminum stick is that the rigidity is weak, which leads to dents at the hit. In order to solve the problems of the aforementioned traditional bats, a bat made of composite materials has been developed in recent years. However, the current composite bats are difficult to achieve a balance between weight reduction and improvement of the hitting effect, so they are not used. widely.

The main purpose of this creation is to provide a composite ball bat that can achieve a good balance between reducing weight and improving shot effects.

In order to achieve the above-mentioned main purpose, the composite club of this creation includes a rod body and a tube body. The rod body is made of a multi-layer fiber composite material. The rod body has a hollow hitting portion, a gripping portion, and a neck. The neck is connected between the hollow hitting portion and the gripping portion, and The outer diameter of the neck gradually decreases from the hollow hitting portion toward the gripping portion; the tube body is arranged in the hollow hitting portion of the rod body, and the axial direction of the tube body is parallel to the axial direction of the rod body And the hardness of the tube body is greater than the hardness of the hollow hitting part of the rod body.

It can be seen from the above that the composite bat of this creation uses a rod body made of multilayer fiber composite materials to improve rigidity and reduce weight on the one hand, and on the other hand, the tube body is arranged in the hollow hitting part to improve the hitting effect. And then achieve the purpose of this creation.

Preferably, the fiber composite materials have at least three layers of inner, middle and outer layers, the thickness of the inner layer is greater than the thickness of the middle layer, and the thickness of the middle layer is greater than the thickness of the outer layer. With the above technical characteristics, the outer layer is thinner, so it is easy to deform and has poor elasticity. Therefore, the contact time with the ball can be increased to improve the ball control performance. The inner layer is thicker, so it has better elasticity but is not conducive to control. For the ball, the use of multi-layer gradual changes can have the advantages of both, and the superposition of the deformation of the multi-layer fiber composite material can provide better rebound force than a single layer.

Preferably, there is a buffer space between two adjacent fiber composite materials at the position of the hollow ball hitting portion, that is, there is a buffer space between the inner layer and the middle layer, and another buffer space is provided between the middle layer and the outer layer. space. Two buffer spaces inside and outside are used to buffer the vibration force generated when hitting the ball.

Preferably, a buffer space is partitioned between two adjacent fiber composite materials by two front and rear spacers.

Preferably, two adjacent fiber composite materials are attached to each other at positions other than the hollow ball striking portion to ensure that the rod body has sufficient rigidity.

Preferably, there is a gap between the outer circumferential surface of the tube body and the inner circumferential surface of the hollow ball striking portion of the rod body.

The detailed structure, characteristics, assembly or use of the composite bat provided by this creation will be described in the detailed description of the subsequent implementation. However, those with ordinary knowledge in the field of creation should be able to understand that these detailed descriptions and specific embodiments listed in the implementation of this creation are only used to illustrate the creation and are not intended to limit the scope of patent applications for this creation.

The applicant first explains here that throughout the specification, including the following embodiments and claims in the scope of the patent application, the nouns related to directionality are based on the directions in the drawings. Secondly, in the following embodiments and drawings, the same element numbers represent the same or similar elements or structural features.

Please refer to FIG. 1, the composite bat 10 of the present creation includes a rod body 20 and a tube body 40.

The rod 20 has a hollow hitting portion 22, a gripping portion 24, and a neck 26. The neck 26 is connected between the hollow hitting portion 22 and the gripping portion 24, and the outer diameter of the neck 26 is hollowed The ball 22 gradually decreases in the direction of the grip 24.

As shown in Fig. 3, the rod body 20 is made of a multi-layer fiber composite material. In terms of the number of layers, three or four layers can be used according to actual needs. In this embodiment, there are three inner, middle and outer layers, and the thickness of the inner layer 28 is greater than The thickness of the middle layer 30 is greater than the thickness of the outer layer 32. As a result, the outer layer 32 is thinner, so it is easy to deform and has poor elasticity, so the contact time with the ball can be increased to improve the ball control performance. The inner layer 28 has a thicker thickness, so it has better elasticity but is not conducive to ball control. The use of multi-layer gradual changes can have the advantages of both, and the use of multi-layer fiber composite materials in terms of deformation can provide better rebound force than a single layer. However, it is not limited to this, and the thickness of the multilayer fiber composite material can also be the same.

In addition, as shown in FIGS. 3 to 5, the front and rear ends of the hollow ball striking part 22 are respectively embedded with a spacer 36 between two adjacent layers of fiber composite material (the material used here is polyurethane but can also be silicone Or rubber), so that the two adjacent layers of fiber composite material are separated by the front and rear spacers 36 to separate a buffer space 34, that is, there is a buffer space 34 between the inner layer 28 and the middle layer 30, and the middle layer 30 and There is another buffer space 34 between the outer layer 32, the inner and outer buffer spaces 34 have the same width W, and the inner and outer buffer spaces 34 are closed, so the air inside will form a buffer effect like an air cushion. In the future, when the composite bat 10 hits the ball, it not only uses the deformation of the multilayer fiber composite material to absorb the impact of the ball, but also uses the two buffer spaces 34 inside and outside to increase the shock absorption effect. As for the positions other than the hollow hitting portion 22 (that is, the positions of the neck 26 and the grip portion 24), the two adjacent layers of fiber composite materials are laminated together, that is, the inner layer 28 and the middle layer 30 They are attached to each other, and the middle layer 30 and the outer layer 32 are attached to each other to ensure that the rod body 20 has sufficient rigidity. In addition, it is worth mentioning here that the aforementioned fiber composite material may be carbon fiber, glass fiber or other polyester fiber. In this embodiment, carbon fiber is used as an illustration.

The tube body 40 is made of fiber composite material such as carbon fiber or plastic or metal such as aluminum alloy. As shown in Figures 1 and 2, the tube body 40 is provided in the hollow hitting portion 22 of the rod body 20. The axial direction of the tube body 40 is parallel to the axial direction of the rod body 20. The tube body 40 has a higher hardness than the rod body 20. The hardness of the hollow ball striking portion 22, that is, the elasticity of the tube body 40, is worse than the elasticity of any fiber composite material layer of the hollow ball striking portion 22 of the rod. The outer circumferential surface of the tube body 40 and the inner circumferential surface of the hollow hitting portion 22 of the rod body 20 can be arranged in a fit manner. This structure can enable the tube body 40 to directly support the fiber composite material of the inner layer. . Alternatively, a gap is left between the outer circumferential surface of the tube body 40 and the inner circumferential surface of the hollow hitting portion 22 of the rod body 20, and the distance of the gap is 1 to 5 mm, and the best distance is 2 to 4 mm. This structure can make the hollow hitting part have a larger deformation space.

It can be seen from the above that the composite bat 10 of the present creation is provided with a tube body 40 in the sweet spot of the hollow hitting portion 22 on the one hand to enhance the hitting effect, and on the other hand, it utilizes the deformation and phase of the multilayer fiber composite material. The buffer space 34 formed by the adjacent two layers of fiber composite material absorbs the shock generated when hitting the ball, so that a good balance can be achieved between reducing the weight and improving the hitting effect, thereby achieving the purpose of this creation.

10: Compound bat 20: Rod body 22: Hollow batting department 24: Grip 26: neck 28: inner layer 30: middle layer 32: Outer layer 34: buffer space W: width 36: Spacer 40: tube body

Figure 1 is a three-dimensional view of the composite club created. Figure 2 is a partial cross-sectional view of the composite club created. Fig. 3 is an enlarged view of part A in Fig. 2. Fig. 4 is an enlarged view of part B in Fig. 2. Figure 5 is an enlarged view of part C in Figure 2.

10: Compound bat

20: Rod body

22: Hollow batting department

24: Grip

26: neck

40: tube body

Claims (11)

A composite ball bat, including: A rod body made of a multi-layer fiber composite material. The rod body has a hollow hitting part, a gripping part and a neck. The neck is connected between the hollow hitting part and the gripping part, And the outer diameter of the neck gradually decreases from the hollow hitting portion toward the gripping portion; and A tube body is arranged in the hollow hitting part of the rod body, the axial direction of the tube body is parallel to the axial direction of the rod body, and the hardness of the tube body is higher than any fiber composite material layer of the hollow hitting part of the rod body The hardness. The composite ball bat according to claim 1, wherein the fiber composite materials have at least three inner, middle and outer layers, the thickness of the inner layer is greater than the thickness of the middle layer, and the thickness of the middle layer is greater than the thickness of the outer layer. The composite bat according to claim 1 or 2, wherein a buffer space is provided at the position of the hollow ball striking portion between two adjacent fiber composite materials. The compound bat according to claim 3, wherein the two buffer spaces have the same width. The composite bat according to claim 3, wherein the front and rear ends of the hollow ball striking part are respectively provided with a spacer between two adjacent fiber composite materials, so that the two adjacent fiber composite materials are covered by the front and back ends. The spacer partitions a buffer space. The composite bat according to claim 3, wherein two adjacent fiber composite materials are bonded together at positions other than the hollow hitting portion. The bat according to claim 1, wherein the fiber composite materials have at least three layers of inner, middle and outer layers with the same thickness. The bat according to claim 1, wherein the outer circumferential surface of the tube body and the inner circumferential surface of the hollow hitting portion of the bat body are arranged in close contact. The bat according to claim 1, wherein a gap is left between the outer circumferential surface of the tube body and the inner circumferential surface of the hollow hitting portion of the bat body, and the interval is 1 to 5 mm. The bat according to claim 1, wherein the tube body is made of fiber composite material. The bat according to claim 1, wherein the tube body is made of metal.

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