Shock-absorbing composite material baseball bat with sensing device and manufacturing method

Abstract

The present invention relates to a shock-absorbing composite baseball bat with a sensing device and a manufacturing method thereof. The present invention designs a hollow bat body and a composite pipe handle. The surface of one end of the bat body facing the composite pipe handle has a hollow positioning hole, and the composite pipe handle has a convex portion embedded in the positioning hole at one end facing the bat body. A handle ring is fixed to the end of the handle of the bat body, and the handle ring includes a fixing seat and a sensor. A placement groove for accommodating the sensor is provided at the outer end of the fixing seat. An elastic part that elastically acts on the inner side of the sensor is fixedly connected in the placement groove. The periphery of the sensor and the elastic part have a limiting structure for limiting the sensor to pop out. The positioning hole of the bat body of the present invention is embedded in the convex portion of the composite pipe, thereby improving the overall strength of the connection. In addition, the elastic part and the limiting structure can be used to clamp the sensor, thereby better limiting the sensor and preventing the sensor from falling off.

Description

Technical Field

[0001] The invention relates to a shock-absorbing composite material ball bat with a sensor device and a manufacturing method thereof. Background Art

[0002] The striking part of existing metal baseball bats is generally made of metal, while the handle is designed with different materials according to the needs of the batter. The bat body and handle at the striking part are usually connected by glue or thread. If the handle is not strong enough, it is easy to break at the connection between the bat body and the handle. In addition, in order to sense the data related to hitting the baseball or swinging the bat, a sensor needs to be embedded in the bat body. The existing direct sensor is fixed by adhesive, which is prone to debonding and shaking, causing the holder to feel a foreign body sensation. Summary of the Invention

[0003] In order to solve the problem that the existing composite material baseball bat containing a sensor is prone to breakage or loosening at the joint between the composite material and other materials during hitting, and the sensor is not easy to be fixed in the bat body.

[0004] The technical solution of the present invention is as follows: A shock-absorbing composite baseball bat with a sensing device, characterized in that it includes a hollow bat body and a composite tubular handle, the surface of the bat body facing the composite tubular handle having a hollow positioning hole, the composite tubular handle having an end facing the bat body having a convex portion embedded in the positioning hole, a handle ring is fixed to the end of the handle of the bat body, the handle ring includes a fixing seat and a sensor, a placement groove for accommodating the sensor is provided at the outer end of the fixing seat, an elastic part that elastically acts on the inner side of the sensor is fixedly connected in the placement groove, and the periphery of the sensor and the elastic part have a limiting structure for limiting the sensor to pop out.

[0005] Preferably, the fixing seat has a plug tube extending to the end opening of the composite pipe handle, the inner wall of the placement groove is ringed with internal threads, the inner thread of the placement groove is connected to the elastic member mounting seat, and the elastic member is fixed in the elastic member mounting seat.

[0006] Preferably, the elastic member includes a fixing plate fixed on the elastic member mounting seat, and the fixing plate is provided with an upwardly curved elastic plate in contact with the sensor, and the elastic plates are in pair and arranged in opposite directions.

[0007] Preferably, the limiting structure includes a limiting protrusion on the periphery of the sensor and a hook located on the periphery of the fixing plate and extending toward the sensor side and capable of supporting the outside of the limiting protrusion. The limiting protrusion is groove-shaped and the hook can be buckled into the groove of the limiting protrusion.

[0008] Preferably, the composite tubing handle extends toward one end of the striking rod body into the lower part of the striking rod body, and the surface of the composite tubing handle has an annular recess that fits into the lower end of the striking rod body. The composite tubing handle extends toward one end of the striking rod body to the upper end of the positioning hole, and the positioning holes are evenly distributed along the circumferential direction.

[0009] Preferably, the striking rod body is made of metal, and the composite tube is made of glass fiber composite material.

[0010] Preferably, an elastic member is fixed inside the plug, and a vibrating member that can be suspended and swing in the middle of the plug is fixed in the middle of the elastic member.

[0011] Preferably, the limiting protrusion groove-shaped opening has a hook portion for facilitating the insertion of the hook, and the hook portion has an inclined surface facing outward.

[0012] Preferably, the limiting protrusion is groove-shaped and the hook can be snapped into the groove of the limiting protrusion. The groove-shaped opening of the limiting protrusion has a hook portion to facilitate the insertion of the hook. The hook portion has an outwardly inclined surface to facilitate the insertion of the hook. The hook portion and the groove-shaped structure can play a role in limiting the position of the sensor.

[0013] The present invention also includes a method for manufacturing the shock-absorbing composite material baseball bat with the sensor device described above, characterized in that the specific implementation steps are as follows:

[0014] (1) A composite tubular handle blank is placed into one end of the opening of a metal striking rod body and extends into the lower portion of the striking rod body. The composite tubular handle blank has a convex portion that is embedded in the positioning hole, and the surface of the composite tubular handle has an annular concave portion that fits into the lower end of the striking rod body;

[0015] (2) placing the composite tubular handle and the striking rod body assembled in step (1) into a mold and heating them; and alternately fitting the joints of the composite tubular handle and the striking rod body by thermoforming;

[0016] (3) The elastic member mounting seat is threadedly connected to the placement groove of the fixing seat, and then the fixing plate of the elastic member is screwed into the elastic member mounting seat, so that the limiting protrusion of the sensor and the hook are misaligned. Then, the sensor is placed in the placement groove and pressed down. The sensor overcomes the elasticity of the elastic plate and rotates the sensor so that the limiting protrusion is screwed into the lower part of the hook to achieve the limit of the sensor;

[0017] (4) Apply glue to the plug of the handle ring, and insert the handle ring with the sensor installed into the opening at the end of the composite pipe handle.

[0018] (5) Insert a plug that seals the striking rod into the upper end of the striking rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention has a simple structure and a compact design, and can clamp the sensor through the elastic member and the limiting structure, thereby better limiting the sensor and preventing the sensor from falling off.

[0021] (2) The present invention has a simple structure and utilizes the positioning hole of the hitting rod body to fit in with the convex portion of the composite pipe to improve the overall strength of the connection; ensuring that the handle and the metal hitting rod body will not separate during the ball hitting process;

[0022] (3) The composite material handle is exposed from the positioning hole to form an elastic layer, so that when the bat is hit by a ball, the elastic layer protects the connection between the bat body and the handle from cracking;

[0023] (4) In the embodiment of the present invention, an elastic buffer is designed inside the plug of the striking rod body to improve the shock resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional schematic diagram of the matching structure of the composite tubular handle and the striking rod body according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic structural diagram of the connection between the composite tubular handle and the striking rod body in a disassembled state according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the exploded structure of the handle ring according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of the fixing seat in the assembled state of the handle and ring according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the plug structure according to an embodiment of the present invention;

[0029] In the figure: 10-striking rod body, 110-positioning hole, 111-sleeve, 20-composite pipe handle, 210-convex portion, 220-annular recess, 30-plug, 310-elastic member, 320-vibrating member, 40-fixed seat, 50-sensor, 60-placement groove, 70-elastic member, 510-limiting protrusion, 521-movable mold, 521-hook, 710-fixed plate, 711-hook, 720-elastic plate, 80-elastic member mounting seat. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] See also Figure 1-5A shock-absorbing composite baseball bat with a sensing device includes a hollow bat body 10 and a composite tubular handle 20. The bat body 10 has a hollow positioning hole 110 on the surface of one end facing the composite tubular handle, and the composite tubular handle has a protrusion 210 embedded in the positioning hole on the outer peripheral surface of one end facing the bat body.

[0032] In this embodiment, the composite tubular handle extends toward one end of the striking rod body and into the lower portion of the striking rod body. The surface of the composite tubular handle has an annular recess 220 that fits into the lower end of the striking rod body.

[0033] In this embodiment, the composite tubular handle 20 extends toward one end of the bat body to the upper end of the positioning hole. The annular recess 220 and the positioning hole 110 are arranged so that the composite tubular handle 20 and the bat body 10 can be alternately engaged at the connection, thereby improving the overall strength of the connection; ensuring that the handle and the metal bat body will not separate during the ball hitting process.

[0034] Generally, the annular recess 220 can be formed by reducing the thickness of the composite tubular handle end, and the outer surface of the protrusion 210 smoothly transitions to the outer surface of the bat body 10. Since the composite handle is exposed from the positioning hole 110 to form an elastic layer, when the bat is hit by a ball, the elastic layer protects the connection between the bat body and the handle from cracking.

[0035] In this embodiment, the striking rod body is made of metal, the positioning holes 110 are evenly distributed along the circumferential direction to ensure uniform connection, and the composite pipe is made of glass fiber composite material.

[0036] In order to better reduce stress concentration at the joint, the positioning hole is designed to be in the shape of a teardrop with a larger top and a smaller bottom, which is consistent with the change in the overall outer diameter profile of the bat.

[0037] The composite tubular handle and the striking rod body are hollow inside, with openings at both ends. A handle ring with a sensor installed is buckled into the tail handle of the composite tubular handle 20. The handle ring includes a fixing seat 40 and a sensor 50 that are inserted into the rear of the composite material handle and fixedly connected to the striking rod body. A placement groove 60 for accommodating the sensor is provided at the outer end of the fixing seat. An elastic member 70 that elastically acts on the inner side of the sensor is fixedly connected in the placement groove. The periphery of the sensor and the elastic member have a limiting structure for the limit sensor 50 to pop out.

[0038] In this embodiment, the inner wall of the placement groove is surrounded by internal threads, the internal threads of the placement groove are connected to an elastic member mounting seat 80 , and the elastic member 70 is fixed in the elastic member mounting seat 80 .

[0039] In one embodiment of the present invention, the elastic member 70 includes a fixing plate 710 fixed to the elastic member mounting base, and an upwardly curved elastic plate 720 in contact with the sensor is provided on the fixing plate.

[0040] In this embodiment, the limiting structure includes a limiting protrusion 510 on the periphery of the sensor 50 and a hook 711 located on the periphery of the fixing plate 710 and extending toward the sensor side and capable of supporting the outer side of the limiting protrusion. In this embodiment, there are multiple hooks 711 distributed along the circumferential direction.

[0041] During installation of this embodiment, the elastic member mounting base 80 is threadedly connected to the placement groove 60, and then the fixing plate 710 of the elastic member 70 is screwed into the elastic member mounting base 80, so that the limiting protrusion 510 and the hook 711 are staggered. Then, the sensor 50 is pressed down, the sensor 50 overcomes the elasticity of the elastic plate 720, and the sensor 50 is rotated so that the limiting protrusion 510 is screwed into the lower part of the hook 711, thereby limiting the sensor 50.

[0042] This structure utilizes the elasticity of the elastic sheet 720 and the limiting function of the hook 711 to clamp the sensor 50 , thereby ensuring that the sensor 50 is fixed.

[0043] In this embodiment, the elastic sheets 720 are provided in pair and are arranged in opposite directions to ensure that the elastic force of the sensor is balanced.

[0044] In actual design, the fixing sheet can also be glued to the bottom of the elastic member mounting seat by glue.

[0045] In addition, the limiting protrusion 510 is groove-shaped and the hook can be buckled into the groove of the limiting protrusion. The groove-shaped opening of the limiting protrusion 510 has a hook portion 511 to facilitate the insertion of the hook. The hook portion is inclined on the outer side to facilitate the insertion of the hook 711. The hook portion 511 and the groove-shaped structure can play a role in limiting the sensor.

[0046] After installation, the outer surface of the sensor is flush with the outer surface of the fixing base, ensuring that the overall appearance of the striking rod is smooth.

[0047] In another embodiment of the present invention, based on the above embodiment, the upper end of the striking rod body has a plug 30 that closes the striking rod body, an elastic member 310 is fixed inside the plug, and a vibrating member 320 that can float and swing in the middle of the elastic member is fixed in the middle of the plug.

[0048] The elastic member material can be an elastic metal mesh or rubber sheet fixed in the plug head, and the vibrating member 320 can be made of metal, plastic or ceramic. The vibrating member 320 is fixed on the elastic member material. The vibrating member 320 can be suspended in the middle of the plug head and the bat body, thereby reducing the vibration caused by the impact on the bat during the hitting of the bat, thereby further improving the overall strength of the bat.

[0049] The present invention also includes a method for manufacturing the shock-absorbing composite material baseball bat with the sensor device described above, which is specifically implemented in the following steps:

[0050] (1) A composite tubular handle blank is placed into one end of the opening of a metal striking rod body and extends into the lower portion of the striking rod body. The composite tubular handle blank has a convex portion that is embedded in the positioning hole, and the surface of the composite tubular handle has an annular concave portion that fits into the lower end of the striking rod body;

[0051] (2) placing the composite tubular handle and the striking rod body assembled in step (1) into a mold and heating them; and alternately fitting the joints of the composite tubular handle and the striking rod body by thermoforming;

[0052] (3) The elastic member mounting seat is threadedly connected to the placement groove of the fixing seat, and then the fixing plate of the elastic member is screwed into the elastic member mounting seat, so that the limiting protrusion of the sensor and the hook are misaligned. Then, the sensor is placed in the placement groove and pressed down. The sensor overcomes the elasticity of the elastic plate and rotates the sensor so that the limiting protrusion is screwed into the lower part of the hook to achieve the limit of the sensor;

[0053] (4) Apply glue to the plug of the handle ring, and insert the handle ring with the sensor installed into the opening at the end of the composite pipe handle.

[0054] (5) Insert a plug that seals the striking rod into the upper end of the striking rod.

[0055] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A shock-absorbing composite baseball bat with a sensor device, characterized in that: The invention comprises a hollow striking rod body and a composite tubular handle, wherein the striking rod body has a hollow positioning hole on the surface of one end facing the composite tubular handle, and the composite tubular handle has a protrusion embedded in the positioning hole on the end facing the striking rod body. A handle ring is fixed to the end of the handle of the striking rod body, and the handle ring includes a fixing seat and a sensor. The outer end of the fixing seat is provided with a placement groove for accommodating the sensor, and an elastic member that elastically acts on the inner side of the sensor is fixedly connected to the placement groove, and the outer periphery of the sensor and the elastic member have a limiting structure for limiting the pop-up of the sensor. The fixing seat has a plug tube extending to the end opening of the composite pipe handle, the inner wall of the placement groove is covered with internal threads, the internal threads of the placement groove are connected to the elastic member mounting seat, and the elastic member is fixed in the elastic member mounting seat; The elastic member includes a fixing plate fixed to the elastic member mounting base, the fixing plate is provided with an upwardly warped elastic plate in contact with the sensor, and the elastic plates are provided in a pair and are arranged in opposite directions; The limiting structure includes a limiting protrusion on the periphery of the sensor and a hook located on the periphery of the fixing plate and extending toward the sensor side and capable of supporting the outside of the limiting protrusion. The limiting protrusion is groove-shaped and the hook can be buckled into the groove of the limiting protrusion.

2. The shock-absorbing composite ball bat with a sensor device according to claim 1, characterized in that: The composite tubular handle extends toward one end of the striking rod body into the lower part of the striking rod body, and the surface of the composite tubular handle has an annular recess that fits into the lower end of the striking rod body. The composite tubular handle extends toward one end of the striking rod body to the upper end of the positioning hole, and the positioning holes are evenly distributed along the circumferential direction.

3. The shock-absorbing composite material baseball bat with a sensor device according to claim 1, characterized in that: The striking rod body is made of metal, and the composite pipe is made of glass fiber composite material.

4. The shock-absorbing composite material baseball bat with a sensor device according to claim 1, characterized in that: The upper end of the striking rod body is provided with a plug head for closing the striking rod body, an elastic member is fixed in the plug head, and a vibrating member which can be suspended and swung in the middle of the elastic member is fixed in the middle of the plug head.

5. The shock-absorbing composite material baseball bat with a sensor device according to claim 4, characterized in that: The limiting protrusion groove-shaped opening is provided with a hook portion for facilitating the insertion of the hook, and the hook portion has an inclined surface facing outward.

6. The shock-absorbing composite ball bat with a sensor device according to claim 5, characterized in that: The limiting protrusion is groove-shaped and the hook can be buckled into the groove of the limiting protrusion. The groove-shaped opening of the limiting protrusion has a hook portion to facilitate the insertion of the hook. The hook portion is inclined on the outer side to facilitate the insertion of the hook. The hook portion and the groove-shaped structure can play a limiting role on the sensor.

7. A method of manufacturing a shock-absorbing composite baseball bat with a sensor device according to claim 6, characterized in that: The specific implementation steps are as follows: (1) The composite tubular handle blank is placed into one end of the opening of the metal striking rod body and extends into the lower part of the striking rod body. The composite tubular handle blank has a convex portion that is embedded in the positioning hole, and the surface of the composite tubular handle has an annular concave portion that fits into the lower end of the striking rod body; (2) placing the composite tubular handle and the striking rod body assembled in step (1) into a mold and heating them; and alternately fitting the joints of the composite tubular handle and the striking rod body by thermoforming; (3) The elastic member mounting seat is threadedly connected to the placement groove of the fixing seat, and then the fixing plate of the elastic member is screwed into the elastic member mounting seat, so that the limiting protrusion of the sensor and the hook are misaligned. Then the sensor is placed in the placement groove and pressed down. The sensor overcomes the elasticity of the elastic plate and rotates the sensor so that the limiting protrusion is screwed into the lower part of the hook to achieve the limitation of the sensor; (4) Apply glue to the plug of the handle ring, and insert the handle ring with the sensor installed into the opening at the end of the composite pipe handle; (5) Insert the plug that seals the striking rod into the upper end of the striking rod.

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