Body structure of softball bat

Abstract

The utility model discloses a softball bat body structure which comprises a bat body, the bat body comprises a bat body located on the upper portion of the bat body and a grab handle fixedly connected to the lower portion of the bat body, and the bat body comprises an outer side glass fiber layer, an inner side glass fiber layer and a middle glass fiber layer located between the outer side glass fiber layer and the inner side glass fiber layer. Carbon fiber interlayers are arranged among the outer glass fiber layer, the inner glass fiber layer and the middle glass fiber layer; according to the softball bat, the bat body is made of the laminated structure of the glass fiber layer and the carbon fiber layer, and meanwhile, the release film is clamped in the glass fiber layer, so that the bat body of the softball bat has stronger toughness, and compared with a glass fiber bat made of a single material or a bat made of a metal material, a wood material and the like, the softball bat is more attractive in appearance. The bat cannot be broken or damaged after being hit for many times, so that the service life of the bat is prolonged; and the batting hand feeling of the bat is also improved by adopting the laminated structure of the glass fiber and the carbon fiber layer.

Description

Technical Field

[0001] This utility model relates to a sporting good, and more particularly to a softball bat. Background Technology

[0002] Most softball bats on the market are made of wood or metal such as aluminum. Wooden or metal bats produce greater vibrations when hitting the ball, causing the vibrations to be directly transmitted to the player's hand, resulting in discomfort when holding the bat. Therefore, some manufacturers have developed bats made of fiberglass. These bats use a curable resin to bond multiple layers of cut fiberglass cloth together to form a multi-layered fiberglass bat. However, this bat structure also has some drawbacks. Because fiberglass has poor toughness, it is prone to breakage or cracking, especially when hit from a distance or when it is subjected to an accidental impact, resulting in a short lifespan for the bat. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a baseball bat body structure.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A softball bat structure includes a bat body, the bat body comprising a shaft located at the upper part of the bat body and a handle fixedly connected to the lower part of the shaft. The shaft comprises an outer glass fiber layer, an inner glass fiber layer, and an intermediate glass fiber layer located between the outer and inner glass fiber layers. A carbon fiber interlayer is disposed between the outer, inner, and intermediate glass fiber layers. The carbon fiber interlayer is fixed to the outer, inner, and intermediate glass fiber layers by adhesive bonding. A release film for reducing the vibration of the bat body is also disposed in the intermediate glass fiber layer. The handle is provided with alternating stacked carbon fiber layers and glass fiber layers.

[0006] The outer fiberglass layer is made by bonding an outer layer of fiberglass cloth with a 60-degree angle between the warp and weft threads and an inner layer of four fiberglass cloth with a 30-degree angle between the warp and weft threads.

[0007] The inner fiberglass layer is made by bonding an outer layer of fiberglass cloth with a 60-degree angle between the warp and weft threads, a middle layer of fiberglass cloth with a 45-degree angle between the warp and weft threads, and an inner layer of fiberglass cloth with a 30-degree angle between the warp and weft threads.

[0008] The intermediate fiberglass layer is made of three outer layers of fiberglass cloth with a 60-degree angle between the warp and weft threads and two inner layers of fiberglass cloth with a 30-degree angle between the warp and weft threads. The release film is placed between the three outer layers of fiberglass cloth with a 60-degree angle between the warp and weft threads and the two inner layers of fiberglass cloth with a 30-degree angle between the warp and weft threads.

[0009] The handle is composed of a double-layered fiberglass fabric consisting of an outer layer of carbon fiber cloth with a 30-degree angle between the warp and weft threads, a middle layer of fiberglass cloth with a 0-degree angle between the warp and weft threads, and a layer of fiberglass cloth with a 10-degree angle between the warp and weft threads; a double-layered carbon fiber fabric consisting of a layer of fiberglass cloth with a 10-degree angle between the warp and weft threads and a layer of carbon fiber cloth with a 30-degree angle between the warp and weft threads; a layer of fiberglass cloth with a 10-degree angle between the warp and weft threads, a layer of carbon fiber cloth with a 0-degree angle between the warp and weft threads, and an innermost layer of fiberglass cloth with a 45-degree angle between the warp and weft threads, all bonded together.

[0010] The carbon fiber interlayer is composed of carbon fiber cloth with a 45-degree angle between the warp and weft threads.

[0011] The rod body has an upper opening and a lower opening at both ends. A top cover is installed in the upper opening. During assembly, the handle is inserted into the rod body through the upper opening.

[0012] The handle and the bar are fixed together by adhesive, and after assembly, the upper end of the handle is located inside the lower opening.

[0013] The beneficial effects of this invention are as follows: The bat body of this invention is made of a structure of laminated glass fiber layers and carbon fiber layers, and a release film is also sandwiched in the glass fiber layers. This bat body structure makes the softball bat body more resilient. Compared with baseball bats made of a single material such as glass fiber or metal and wood, it will not break or break after a lot of hits, thus extending the service life of the bat. The structure of laminated glass fiber and carbon fiber layers also improves the feel of the bat when hitting. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] Figure 3 yes Figure 2 A magnified microscopic view of A in the image.

[0018] Figure 4 yes Figure 2 A magnified microscopic view of B. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0020] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0021] Reference Figures 1 to 4 A softball bat structure includes a bat body 1, the bat body 1 including a shaft 11 located at the upper part of the bat body 1 and a handle 12 fixedly connected to the lower part of the shaft 11. The shaft 11 includes an outer glass fiber layer 13, an inner glass fiber layer 14, and an intermediate glass fiber layer 15 located between the outer glass fiber layer 13 and the inner glass fiber layer 14. A carbon fiber interlayer 16 is disposed between the outer glass fiber layer 13, the inner glass fiber layer 14, and the intermediate glass fiber layer 15. The carbon fiber interlayer is fixed to the outer glass fiber layer 13, the inner glass fiber layer 14, and the intermediate glass fiber layer 15 by adhesive bonding. The intermediate glass fiber layer 15 is also provided with a release film for reducing the vibration of the bat body 1, and the handle 12 is provided with alternating stacked carbon fiber layers and glass fiber layers; the bat body of this utility model is made of a structure of glass fiber layer and carbon fiber layer, and a release film is also sandwiched in the glass fiber layer. This bat body structure makes the softball bat body more resilient. Compared with the glass fiber bat or the bat made of metal, wood or other materials made of a single material, it will not break or break after a lot of hits, thus extending the service life of the bat; the structure of glass fiber and carbon fiber layer also improves the feel of the bat when hitting.

[0022] The outer fiberglass layer 13 is formed by bonding an outer layer of fiberglass cloth with a 60-degree angle between the warp and weft threads and an inner layer of four fiberglass cloth with a 30-degree angle between the warp and weft threads. The inner fiberglass layer 14 is formed by bonding an outer layer of fiberglass cloth with a 60-degree angle between the warp and weft threads, a middle layer of fiberglass cloth with a 45-degree angle between the warp and weft threads, and an inner layer of fiberglass cloth with a 30-degree angle between the warp and weft threads. The intermediate fiberglass layer 15 is formed by bonding three outer layers of fiberglass cloth with a 60-degree angle between the warp and weft threads and two inner layers of fiberglass cloth with a 30-degree angle between the warp and weft threads. The release film is placed between the three outer layers of fiberglass cloth with a 60-degree angle between the warp and weft threads and the two inner layers of fiberglass cloth with a 30-degree angle between the warp and weft threads. When players hit the ball, the vibration of the bat often causes a numb and uncomfortable feeling in their hands after hitting the ball for a long time. Usually, the game or training time is long, which makes the player feel bad when holding the bat. Therefore, in this embodiment, a release film is provided in the intermediate fiberglass layer, which can reduce the vibration of the bat when the player hits the softball and improve the feel of the bat.

[0023] Release films are used in sports equipment for shock absorption, which is an existing technology. For example, CN210186380U discloses a composite carbon fiber baseball bat with high elasticity and shock absorption function. In this embodiment, the release film is a PET silicone oil film produced by Jiangsu Pingyu New Material Co., Ltd. It is based on PET substrate and coated with silicone oil on both sides. The release film made of PET material has strong tensile strength, which can convert the vibration generated when hitting the ball into the elastic potential energy of the release film and dissipate the kinetic energy by generating deformation, thereby reducing the strong hand vibration generated by the ball hitting the bat at high speed, avoiding the numbness in the hands of athletes after hitting the ball for a long time, and improving the user experience of the bat. In addition, the release film has strong thermal stability. After hitting the ball for a long time, the bat will heat up due to vibration. The release film has sufficient tensile strength and toughness at high temperatures, and can maintain stable performance even after hitting the ball for a long time, providing stable tensile force.

[0024] The grip 12 is composed of a double-layered fiberglass layer 17, consisting of an outer layer of carbon fiber cloth with a 30-degree angle between the warp and weft threads, a middle layer of fiberglass cloth with a 0-degree angle between the warp and weft threads, and a layer of fiberglass cloth with a 10-degree angle between the warp and weft threads; a double-layered carbon fiber layer 18, consisting of a layer of fiberglass cloth with a 10-degree angle between the warp and weft threads and a layer of carbon fiber cloth with a 30-degree angle between the warp and weft threads; and a layer of fiberglass cloth with a 10-degree angle between the warp and weft threads, a layer of carbon fiber cloth with a 0-degree angle between the warp and weft threads, and an innermost layer of fiberglass cloth with a 45-degree angle between the warp and weft threads, all bonded together. The grip and the shaft serve different functions. The shaft needs a certain degree of flexibility to improve the feel of hitting the ball, while the grip needs strong rigidity to better transmit the force generated by the player's swing to the shaft. Therefore, the grip in this embodiment adopts a structure of stacked carbon fiber and fiberglass to improve the overall rigidity of the grip.

[0025] The carbon fiber interlayer is composed of carbon fiber cloth with a 45-degree angle between the warp and weft threads. The carbon fiber interlayer enhances the rigidity of the bat, significantly improving its rigidity compared to bats made solely of fiberglass. This prevents surface breakage from repeated shots and extends the bat's lifespan.

[0026] The rod body 11 has an upper opening and a lower opening at both ends. A top cover 19 is installed in the upper opening. During assembly, the handle 12 is inserted into the rod body 11 through the upper opening. The handle 12 and the rod body 11 are fixed together by adhesive. After assembly, the upper end of the handle 12 is located in the lower opening. The rod body and handle are fixed together by adhesive, and common adhesives such as epoxy resin glue can be used.

[0027] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bat body structure of a softball bat comprising a bat body (1), characterized by The rod body (1) comprises a rod body (11) at the upper part of the rod body (1) and a handle (12) fixedly connected below the rod body (11), the rod body (11) comprises an outer glass fiber layer (13), an inner glass fiber layer (14) and an intermediate glass fiber layer (15) between the outer glass fiber layer (13) and the inner glass fiber layer (14), a carbon fiber interlayer (16) is arranged between the outer glass fiber layer (13), the inner glass fiber layer (14) and the intermediate glass fiber layer (15), the carbon fiber interlayer (16) is fixed between the outer glass fiber layer (13), the inner glass fiber layer (14) and the intermediate glass fiber layer (15) by bonding, a release film for reducing vibration of the rod body (1) is further arranged in the intermediate glass fiber layer (15), and the handle (12) is provided with alternatingly stacked carbon fiber layers and glass fiber layers.

2. The bat structure of claim 1, wherein The outer glass fiber layer (13) is formed by bonding an outer layer of glass fiber cloth with an included angle of 60 degrees between warp and weft and four layers of glass fiber cloth with an included angle of 30 degrees between warp and weft on the inner side.

3. The bat structure of claim 1, wherein The inner glass fiber layer (14) is formed by bonding an outer layer of glass fiber cloth with an included angle of 60 degrees between warp and weft, a middle layer of glass fiber cloth with an included angle of 45 degrees between warp and weft and an inner layer of glass fiber cloth with an included angle of 30 degrees between warp and weft.

4. The bat structure of claim 1, wherein The intermediate glass fiber layer (15) is formed by bonding three layers of glass fiber cloth with an included angle of 60 degrees between warp and weft on the outer side and two layers of glass fiber cloth with an included angle of 30 degrees between warp and weft on the inner side, and the release film is arranged between the three layers of glass fiber cloth with an included angle of 60 degrees between warp and weft on the outer side and the two layers of glass fiber cloth with an included angle of 30 degrees between warp and weft on the inner side.

5. The bat structure of claim 1, wherein The handle (12) is a double-layer glass fiber layer (17) formed by bonding an outer layer of carbon fiber cloth with an included angle of 30 degrees between warp and weft, a middle layer of glass fiber cloth with an included angle of 0 degrees between warp and weft and a layer of glass fiber cloth with an included angle of 10 degrees between warp and weft, a double-layer carbon fiber layer (18) formed by bonding a layer of glass fiber cloth with an included angle of 10 degrees between warp and weft and a layer of carbon fiber cloth with an included angle of 30 degrees between warp and weft, and an outer layer of glass fiber cloth with an included angle of 10 degrees between warp and weft, a layer of carbon fiber cloth with an included angle of 0 degrees between warp and weft and an innermost layer of glass fiber cloth with an included angle of 45 degrees between warp and weft.

6. The bat structure of claim 1, wherein The carbon fiber interlayer (16) is formed by carbon fiber cloth with an included angle of 45 degrees between warp and weft.

7. The bat structure of claim 1, wherein Both ends of the rod body (11) are provided with an upper opening and a lower opening, a top cover (19) is mounted in the upper opening, and when assembled, the handle (12) is loaded into the rod body (11) from the upper opening.

8. The bat structure of claim 7, wherein The handle (12) and the rod body (11) are fixed by bonding, and after assembly, the upper end of the handle (12) is located in the lower opening.

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