Outer damping module bat and manufacturing process

Abstract

The present application relates to an outer damping module bat and manufacturing process, including an aluminum alloy integrally formed rod body and an assembled end cover located on the front side of the aluminum alloy integrally formed rod body, the assembled end cover includes a tubular carbon fiber sleeve and a buckle cover located at the front end of the carbon fiber sleeve, the outer surface of the bat body is wrapped with an elastomer, and the surface of the elastomer is embedded with a metal ring. Compared with a common all-aluminum bat, the present application has small vibration when hitting the ball due to the damping effect of the elastomer combined with the metal ring, and also reduces the damage to the hands of the person hitting the ball. The elastomer combined with the metal ring is a whole part and is directly fixed on the surface of the bat, which is convenient to fix and simple in process.

Description

Technical Field

[0001] This invention relates to an external damping module ball and its manufacturing process. Background Technology

[0002] During a baseball bat's impact, the grip area is struck, and reducing the impact on the batter has always been a key focus in bat development. Current technologies typically use a separate structure for the bat's striking and grip areas, incorporating a cushioning device, or a cushioning component at the striking point. However, this requires specialized equipment to position and assemble the cushioning component at the center of the striking point, making the process quite complex. Furthermore, the aforementioned cushioning structure is not suitable for one-piece bat designs. Summary of the Invention

[0003] To address the issue of existing baseball bats requiring shock absorption at the grip area of ​​the batting section to reduce bat vibration, the current structural design is difficult to assemble and the process is too complex to be suitable for a one-piece molded bat structure.

[0004] The technical solution of the present invention is as follows: an external damping module baseball bat, comprising an integrally formed aluminum alloy rod body and an assembly end cap located on the front side of the integrally formed aluminum alloy rod body. The assembly end cap comprises a tubular carbon fiber sleeve and a buckle cap located at the front end of the carbon fiber sleeve. The outer surface of the baseball bat body is wrapped with an elastomer, and a metal ring is embedded in the surface of the elastomer.

[0005] Preferably, the upper surface of the elastomer gradually transitions obliquely from the center to both sides, and the inner surface of the elastomer has an annular through groove.

[0006] Preferably, the elastomer material is silicone or rubber.

[0007] Preferably, the hardness of the elastomer is Shore A 20A to 75A, and the mass of the elastomer is 5g to 50g.

[0008] Preferably, the surface of the bat body has a concave surface that matches the lower surface of the elastomer.

[0009] This invention also includes a manufacturing process for forming the aforementioned external damping module ball, specifically comprising the following steps:

[0010] (1) Preparation of aluminum alloy integral forming rod: The aluminum alloy tubular shape of equal diameter is placed in the rolling equipment for rolling;

[0011] (2) After the rolling process is completed, the formed ball bar blank is subjected to surface treatment;

[0012] (3) Preparation of carbon fiber sleeve: The carbon fiber composite prepreg is wound onto a tubular sleeve, and then the sleeve is removed. The formed tubular carbon fiber composite prepreg is thermoformed into a carbon fiber tube.

[0013] (4) Cutting step (3) Cut the formed carbon fiber tube into segments to form carbon fiber tube segments;

[0014] (5) Process the carbon fiber tube segment formed in step (4) so ​​that one side of the carbon fiber tube segment is formed into an inner sleeve that can be inserted into the forming rod body, thereby forming a carbon fiber sleeve.

[0015] (5) The carbon fiber sleeve is installed on the aluminum alloy integral molded rod body; the surfaces of the assembled rod and carbon fiber tube are polished;

[0016] (6) Secure the cap to the outer end of the fiber tube;

[0017] (7) Adhere a metal ring to the surface of the elastomer, then apply glue to the inner surface of the elastomer and adhere it to the middle of the aluminum alloy integral rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) Compared with ordinary all-aluminum baseball bats, the vibration during the hit is very small due to the damping effect of the elastic body combined with the metal ring, which also reduces the damage to the batter's hand. The elastic body combined with the metal ring is a single part that can be directly fixed to the surface of the bat, which is convenient and simple.

[0020] (2) The assembly process of this invention is simple. The aluminum alloy body and carbon fiber end are efficiently manufactured separately and bonded with structural adhesive, which greatly simplifies the process. Compared with traditional aluminum alloy, the weight of the bat end can be reduced by 16-20 grams, which can make the balance point of the bat move towards the grip, making it easier for players to swing.

[0021] (3) The present invention adopts a carbon fiber end cap that is first formed and then cut, and then glued to the front end of the aluminum alloy bat. This can effectively improve work efficiency. Multiple carbon fiber sleeves can be manufactured simultaneously. The length of the carbon fiber tube can be pre-formed to be longer. After forming, it is cut into multiple carbon fiber tube segments that meet the length requirements, thereby effectively meeting the bat sizes of different specifications. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the baseball bat according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the carbon fiber sleeve and buckle structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic cross-sectional view of a ball-and-stick with a damping module according to an embodiment of the present invention;

[0025] Figure 4This is a schematic cross-sectional view of a ball-and-stick with an annular groove in an embodiment of the present invention.

[0026] Figure 5 This is a three-dimensional cross-sectional structural diagram of an embodiment of the present invention. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] See Figure 1-5 A modular composite baseball bat structure with low moment of inertia includes an integral aluminum alloy rod body 10 and an assembly end cap located on the front side of the integral aluminum alloy rod body. The assembly end cap includes a tubular carbon fiber sleeve 101 and a buckle cap 102 located at the front end of the carbon fiber sleeve. The outer surface of the baseball bat body is wrapped with an elastomer 20, and a metal ring 30 is embedded in the surface of the elastomer.

[0029] In this embodiment, the elastomer is made of silicone or rubber and is located at one-third to two-thirds of the length of the bat from front to back. When the bat hits the baseball, the elastomer located behind the point of impact absorbs the impact. Since the metal ring 30 does not contact the bat, the metal ring 30 vibrates, thereby generating damping to reduce the impact and suppress vibration.

[0030] In this embodiment, the bat body is integrally formed from aluminum alloy through roll forming. Because the integral bat has high overall strength, and it is impossible to insert a buffer component inside the connection between the hitting and gripping parts, an external damping component is required to achieve shock absorption.

[0031] In this embodiment, the upper surface of the elastomer gradually transitions obliquely from the middle to both sides, and the elastomer material is silicone or rubber.

[0032] like Figure 3 The diagram shown is a cross-sectional view of the baseball bat. In this embodiment, the hardness of the elastomer is Shore A 20A to 75A, the mass of the elastomer is 5g to 50g, and the elastic material is silicone or rubber.

[0033] When the elastomer 20 has a low hardness (Shore hardness between 20A and 40A), it can be a solid. However, when the elastomer 20 has a high hardness (Shore hardness between 40A and 75A), it can have annular grooves 210 to reduce rigidity and improve shock absorption. The openings of the annular grooves 210 can face the metal ring 30. The metal ring and the elastomer 20 are connected by adhesive. Additionally, the annular grooves 210 can also be used to store adhesive to improve the connection strength between the metal ring and the elastomer.

[0034] In this embodiment, the surface of the bat body has a concave surface 104 that matches the lower surface of the elastomer 20. This structure can improve the adhesion of the elastomer 20 to the surface of the bat.

[0035] The specific manufacturing process for forming the aforementioned external damping module ball includes the following steps:

[0036] (1) Preparation of aluminum alloy integral forming rod: The aluminum alloy tubular shape of equal diameter is placed in the rolling equipment for rolling;

[0037] (2) After the rolling process is completed, the formed ball bar blank is subjected to surface treatment;

[0038] (3) Preparation of carbon fiber sleeve: The carbon fiber composite prepreg is wound onto a tubular sleeve, and then the sleeve is removed. The formed tubular carbon fiber composite prepreg is thermoformed into a carbon fiber tube.

[0039] (4) Cutting step (3) Cut the formed carbon fiber tube into segments to form carbon fiber tube segments;

[0040] (5) The carbon fiber tube segment formed in step (4) is processed so that one side of the carbon fiber tube segment is formed into an inner sleeve 103 that can be inserted into the forming rod body, thereby forming a carbon fiber sleeve.

[0041] (5) The carbon fiber sleeve is installed on the aluminum alloy integral molded rod body; the surfaces of the assembled rod and carbon fiber tube are polished;

[0042] (6) Fix the buckle cap 102 to the outer end of the fiber tube;

[0043] (7) Adhere a metal ring to the surface of the elastomer, then apply glue to the inner surface of the elastomer and adhere it to the middle of the aluminum alloy integral rod.

[0044] The above description is merely an embodiment of the present invention. The presence of an annular groove for limiting the position of the limiting protrusion facing the end of the tubular blank does not limit the patent scope of the present invention. Any equivalent structural or process transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An external damping module bat, characterized in that, The device includes a one-piece molded aluminum alloy rod body and an assembly end cap located on the front side of the one-piece molded aluminum alloy rod body. The assembly end cap includes a tubular carbon fiber sleeve and a buckle cap located at the front end of the carbon fiber sleeve. The outer surface of the rod body is wrapped with an elastomer. A metal ring is embedded in the surface of the elastomer. The upper surface of the elastomer gradually transitions obliquely from the middle to both sides. The inner surface of the elastomer has an annular through groove. The surface of the rod body has a concave surface that matches the lower surface of the elastomer. When the bat hits the baseball, the elastic body located behind the point of impact absorbs the impact. Since the metal ring does not contact the bat, the metal ring will vibrate afterward, thereby generating damping to reduce the impact and suppress vibration.

2. The external damping module bat according to claim 1, characterized in that, The elastomer material is silicone or rubber.

3. The external damping module bat according to claim 1, characterized in that, The hardness of the elastomer is 20A to 75A on the Shore A scale, and the mass of the elastomer is 5g to 50g.

4. A manufacturing process for forming the external damping module bat as described in claim 1, characterized in that: Specifically, the following steps are included: (1) Preparation of aluminum alloy integral forming rod: The aluminum alloy tubular shape of equal diameter is placed in the rolling equipment for rolling; (2) After the rolling process is completed, the formed ball bar blank is subjected to surface treatment; (3) Preparation of carbon fiber sleeve: The carbon fiber composite prepreg is wound onto a tubular sleeve, and then the sleeve is removed. The formed tubular carbon fiber composite prepreg is thermoformed into a carbon fiber tube. (4) Cutting step (3) Cut the formed carbon fiber tube into segments to form carbon fiber tube segments; (5) Process the carbon fiber tube segment formed in step (4) so ​​that one side of the carbon fiber tube segment is formed into an inner sleeve that can be inserted into the forming rod body, thereby forming a carbon fiber sleeve. (5) The carbon fiber tube segment is installed on the aluminum alloy integral molded rod body to form a carbon fiber sleeve; the surfaces of the assembled rod and carbon fiber tube are polished. (6) Secure the cap to the outer end of the fiber tube; (7) Adhere a metal ring to the surface of the elastomer, then apply glue to the inner surface of the elastomer and adhere it to the middle of the aluminum alloy integral rod.

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