Composite bat

Abstract

The invention provides a combined type bat which comprises a bat body, the bat body is divided into a grip section, a gradually-expanding section and a ball hitting section, the gradually-expanding section is connected between the ball hitting section and the grip section, the outer diameter of the gradually-expanding section is gradually expanded from the grip section to the ball hitting section, the bat body is made of aluminum alloy, a carbon fiber layer is additionally arranged on the grip section and wraps the aluminum alloy, and the carbon fiber layer is arranged on the outer side of the grip section. And the thickness of the carbon fiber layer accounts for 15-50% of the total thickness of the whole grip section.

Description

Technical Field

[0001] The present invention relates to a bat used for baseball or softball, and more particularly to a composite bat. Background Art

[0002] At present, according to the use field and relevant regulations, baseball or softball bats can be roughly divided into three types according to their materials, such as wooden bats made of wood or aluminum bats made of aluminum alloy, etc. And according to the different materials of the bats, the physical properties of the bats themselves will also be different. Wooden bats are mostly used in professional competitions, and the users are mostly more professional or professional players. Aluminum bats are the most widely used type. As for aluminum bats, the two main factors that affect consumers' use of aluminum bats should be elasticity and vibration. Although aluminum bats have better rigidity due to the characteristics of metal and can have a longer hitting distance, the overall flexibility and shock absorption effect of the bat are not good.

[0003] Therefore, how to provide a baseball bat that is easy to use but has low vibration feeling for general users has become an issue. Summary of the invention

[0004] The main purpose of the present invention is to provide a composite ball bat, which utilizes the lamination effect of multiple different materials to make the ball bat have better shock absorption effect than aluminum alloy ball bats.

[0005] In order to achieve the above main purpose, the composite ball bat of the present invention comprises: a ball bat body, which can be basically divided into a grip section with the smallest outer diameter, a gradually expanding section and a hitting section according to the change of its outer diameter, the grip section is in a hollow tube shape, one end of which is provided with a grip end sleeve and the other end is connected to the gradually expanding section, the gradually expanding section is connected between the hitting section and the grip section, and the outer diameter of the grip section gradually expands toward the hitting section. The ball bat body is made of aluminum alloy, and a carbon fiber layer is provided on the grip section to cover the outside of the aluminum alloy, and the thickness of the carbon fiber layer accounts for 15-50% of the total thickness of the grip section.

[0006] According to the above structure, the composite ball bat of the present invention utilizes the different characteristics of different materials in transmitting shock waves, so that the shock waves are weakened or interrupted during transmission, thereby improving the shock absorption performance of the ball bat.

[0007] Preferably, a shock absorbing component is further disposed inside the handle section, and the hardness of the shock absorbing component is 50A-70A.

[0008] Preferably, the total length of the shock-absorbing member is 10-70% of the total length of the handle section.

[0009] In order to further understand the techniques, means and effects adopted by the present invention to achieve the predetermined objectives, please refer to the following detailed description and drawings of the present invention. It is believed that the objectives, features and characteristics of the present invention can be deeply and specifically understood thereby. However, the drawings are only provided for reference and illustration and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of the appearance of the present invention.

[0011] Figure 2 for Figure 1 Schematic diagram of the cross section along the center line 2-2.

[0012] Figure 3 for Figure 2 An enlarged schematic diagram of the connection between the handle section and the gradually expanding section.

[0013] Figure 4 For the same Figure 2 , showing a schematic diagram of the shock absorber when different lengths are set.

[0014] Wherein, the reference numerals are:

[0015] 10: Bat body

[0016] 11: Grip section

[0017] 12: Gradual expansion

[0018] 13: Hitting

[0019] 14: Grip end sleeve

[0020] 15: Carbon fiber layer

[0021] 20: shock absorber

[0022] H, h: thickness

[0023] D, d: length. DETAILED DESCRIPTION

[0024] In this specification, many specific details are provided to provide a thorough understanding of the specific embodiments of the present invention; however, those skilled in the art should know that the present invention can still be practiced without one or more of these specific details; in other cases, well-known details are not shown or described to avoid obscuring the main technical features of the present invention. The technical content and detailed description of the present invention are described as follows with the accompanying drawings:

[0025] like Figures 1 to 4 As shown, the composite ball bat of the present invention comprises:

[0026] A bat body 10 can be divided into a grip section 11 with the smallest outer diameter, a gradually expanding section 12 and a hitting section 13 according to the change of its outer diameter. The grip section 11 is in a hollow tubular shape, one end of which is provided with a grip end sleeve 14, and the other end is connected to the gradually expanding section 12. The gradually expanding section 12 is connected between the hitting section 13 and the grip section 11, and the outer diameter gradually expands from the grip section 11 to the hitting section 13.

[0027] The bat body 10 is made of aluminum alloy, and the grip section 11 is formed by thinning the aluminum alloy and then coating the aluminum alloy with a carbon fiber layer 15.

[0028] In cross section, the thickness of the carbon fiber layer 15 accounts for about 15-50% of the total thickness of the entire grip section. That is, if the total thickness H of the grip section 11 is 2 mm, the thickness h of the carbon fiber is 0.3-1 mm, and the best range should be 15-30%. Such a composite structure can provide better shock absorption effect than the original aluminum alloy alone, and its shock absorption performance can be improved by about 15-60%.

[0029] A soft shock-absorbing member 20 made of silicone or rubber is provided inside the grip section 11. The shock-absorbing member 20 is a silicone with a hardness of 50A to 70A in this embodiment. The purpose of providing the shock-absorbing member 20 is to absorb and offset the vibration transmitted from the bat hitting section. Therefore, the shock-absorbing member 20 cannot be too soft or too hard, because the shock-absorbing effect of a too soft shock-absorbing material, for example, a hardness below 50A, is only about 10% poor. If there is an improvement, the amount of shock-absorbing material used must be increased, but this will affect the center of gravity of the bat. However, if the hardness of the shock-absorbing material is too hard, for example, above 70A, the shock-absorbing effect is not significantly increased and the shock-absorbing material is prone to breakage due to the high hardness. Therefore, if the hardness of the material used for the shock-absorbing member is too soft or too hard, the shock-absorbing effect is not good.

[0030] In addition, the total length d of the shock absorber 20 is 10-70% of the total length D of the grip section 11. If the shock absorber 20 is too short, the shock absorption effect is not obvious, but if it is too long, the weight of the grip section will be increased, and the position of the center of gravity of the entire bat will be changed, which is not conducive to hitting. The shock absorber 20 can be provided by pouring or inserting.

[0031] The thickness of the carbon fiber layer 15 is uniform in the grip section 11 , but gradually becomes thinner when extending to the gradually expanding section 12 , and gradually decreases from the grip section 11 toward the hitting section 13 . This approach can take into account both the structural strength of the bat and the shock-absorbing effect of the grip section.

[0032] The above description is merely the content described in the above embodiments of the present application, and it cannot be used to limit the patent protection scope of the present application. Any simple changes or equivalent implementations made according to the claims and the contents of the patent specification of the present application should be covered by the patent scope of the present application.

Claims

1. A composite baseball bat, characterized in that: Contains; A bat body, which can be basically divided into a grip section with the smallest outer diameter, a gradually expanding section and a hitting section according to the change of its outer diameter, the grip section is in a hollow tubular shape, one end of the grip section is provided with a grip end sleeve and the other end is connected to the gradually expanding section, the gradually expanding section is connected between the hitting section and the grip section, and the outer diameter gradually expands from the grip section to the hitting section; The bat body is made of aluminum alloy, and the handle section is provided with a carbon fiber layer covering the outside of the aluminum alloy. The thickness of the carbon fiber layer accounts for 15-50% of the total thickness of the handle section.

2. The composite ball bat according to claim 1, wherein: The thickness of the carbon fiber layer accounts for 15-30% of the total thickness of the handle segment.

3. The composite ball bat according to claim 2, wherein: A shock absorbing component is further arranged inside the grip section, and the hardness of the shock absorbing component is 50A-70A.

4. The composite ball bat according to claim 1, wherein: A shock absorbing component is further arranged inside the handle section, and the hardness of the shock absorbing component is 50A-70A.

5. The composite ball bat according to claim 1, wherein: The total length of the shock-absorbing member is 10-70% of the total length of the handle section.

6. The composite ball bat according to claim 3, wherein: The total length of the shock-absorbing member is 10-70% of the total length of the handle section.

7. The composite ball bat according to claim 4, wherein: The total length of the shock-absorbing member is 10-70% of the total length of the handle section.

8. The composite ball bat according to claim 1, wherein: The carbon fiber layer has a uniform thickness in the grip section, but gradually becomes thinner as it extends to the divergent section.

9. The composite ball bat according to claim 7, wherein: The carbon fiber layer has a uniform thickness in the grip section, but gradually becomes thinner as it extends to the divergent section.

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