TWI623341B - Bat joint structure - Google Patents

Abstract

A bat-bonding structure, the bat having an inner space hollow rod body, the hollow rod body comprising at least one engaging portion that is engaged with each other, the engaging portion forming a clamping groove between the engaging portions; and at least one fixing Abutting, the fixed connector includes a convex block that fits into the clamping groove of the engaging portion, and an abutting portion that is away from the end of the protruding block and connects the engaging portion, through the fixing connector, The connection position between the joints of the hollow rod body is more stable, so that the design effect of lifting the whole bat is not reduced, and the overall strength and design of the bat are improved, and the playing time is effectively alleviated. Hand numbness, enhance the sense of hitting, and make the bat more durable.

Description

Bat joint construction

The present invention relates to a bat, and more particularly to a bat joint construction that increases the joint strength of the bat.

Referring to FIG. 1 and FIG. 2, the conventional bat 1 is made of a single material and integrally formed. When the striker swings a ball striking portion 11 of the bat 1 to hit the ball, an impact energy is generated. The impact energy is transmitted from the ball striking portion 11 and the inclined portion 12 of the bat 1 to a grip portion 13 gripped by the striking hand, because the oblique portion 12 is difficult to achieve the shock absorbing effect, and the pair will be The striker's hand is prone to injury.

There is also a segmented structure of a composite bat 2, as shown in FIGS. 3 and 4, the composite bat 2 has a ball striking portion 21, and a ball striking portion 21 is engaged with the ball striking portion 21. The inclined section 22 integrally connected to the grip portion 23 is easily broken when hitting the ball, and it is first expected that the hitting effect of the hitting portion 21 is not good. Therefore, in order to avoid the occurrence of fracture doubt in the use of the inclined portion 22, it is necessary to add at least one bonding member (for example, a resin sheet) to strengthen the structural relationship between the ball striking portion 21 and the oblique portion portion 22.

In order to be able to more secure and strengthen the segmented structure of the composite bat 2 described above, it is necessary to add the joint to the structure of each segment to improve the risk of breakage. Therefore, the bat combination structure of the present invention maintains the performance advantages of the structure of each part of the bat, and improves the overall strength of the bat, High design, as well as ease the feel of the hand when playing, enhance the feel, and make the bat more durable to solve the above problems.

The object of the present invention is to provide a connection position between the joints of the bat which is more stable, so that the design effect of lifting the whole bat is not reduced, and the overall strength and designability of the bat can be improved. The utility model can effectively alleviate the feeling of the hand when playing the ball, improve the sense of hitting, and make the bat of the bat more durable.

For the purpose of the foregoing invention, the present invention is a bat-bonding structure having a hollow rod body having an inner space, the hollow rod body including at least one joint portion that is engaged with each other, and the joint portion of the joint portion is interposed Forming a clamping groove; and at least one fixing socket, the fixing socket comprising a convex block fitted into the clamping groove facing the joint portion, and abutting away from the end of the protruding block and connecting the joint portion In the joint, the connection between the fixed joint and the joint portion is followed by boiling heat shrinkage, and the boiling water temperature is controlled at 50 ° C to 95 ° C to cause shrinkage and embedding.

Further, the hollow rod body has one joint portion, the hollow rod body is provided with a ball striking portion, a first joint portion is disposed below the ball striking portion, a head portion is disposed above the ball striking portion, and a grip portion is disposed a holding portion, a fourth engaging portion is disposed above the grip portion, and an abutting portion is disposed below the grip portion, and the fourth engaging portion is connected to the first engaging portion of the ball striking portion to have an outer diameter larger than the holding portion a slanted portion of the outer diameter of the portion, the slanted portion having a second engaging portion engaged with the first engaging portion of the ball striking portion, and an integral joint with the fourth engaging portion of the grip portion Third joint segment The first engaging portion of the ball portion is sleeved outside the second engaging portion of the inclined portion, so that the clamping groove is formed between the first engaging portion and the second engaging portion; wherein the fixing joint is a The convex block of the fixed joint is engaged with the clamping groove between the first joint portion and the second joint portion, and the first joint portion is provided above the abutment portion of the fixed joint The end engaging groove has a through hole communicating with the inner space inside the abutting portion, and the through hole provides the second engaging portion to penetrate, so that the abutting portion of the fixed connecting ring is annularly engaged Outside the second joint segment.

Further, the hollow rod body has one joint portion, and the hollow rod body is provided with a ball striking portion, and a first joint portion is disposed below the ball striking portion, and the first joint portion is connected with an outer diameter smaller than the hitting ball a slanted portion of the outer diameter of the portion, the slanted portion having a second joint portion integrally connected with the first joint portion of the ball striking portion, and an outer diameter away from the second joint portion and having an outer diameter smaller than the second joint a third engaging portion of the outer diameter of the segment, a cap portion is disposed above the ball striking portion; and a grip portion, and a fourth joint engaged with the third engaging portion of the oblique segment portion is disposed above the grip portion a third engaging portion of the inclined portion is sleeved outside the fourth engaging portion of the grip portion, so that the clamping groove is formed between the third engaging portion and the fourth engaging portion, the grip An abutting portion is disposed under the holding portion; wherein the fixing connecting piece is one, and the convex block of the fixed connecting piece is engaged with the clamping groove between the third engaging portion and the fourth engaging portion, the fixing a groove for providing a bottom end engagement of the third joint portion is disposed above the abutting portion of the nozzle, the fixing The abutting portion of the tube has a through hole communicating with the inner space, and the through hole provides the fourth joint portion to penetrate, so that the abutting portion of the fixed joint is annularly engaged on the outer side of the fourth joint portion .

Further, the hollow rod body forms two joint portions which are engaged with each other, and the clamping groove is respectively formed between the joints of the joint portions, and each of the clamping grooves is respectively connected with the same Fixed takeover.

Further, the hollow rod body is provided with a ball striking portion, a diagonal portion and a grip portion. A first joint portion is disposed below the ball striking portion, and a cap portion is disposed above the ball striking portion. Having a second engaging section engaged with the first engaging section of the ball striking portion, the outer diameter of the second engaging section of the inclined section is smaller than the outer diameter of the first engaging section of the ball striking portion, and a third engaging section away from the end of the second engaging section and having an outer diameter smaller than the second engaging section, and a fourth engaging section that is engaged with the third engaging section of the inclined section is disposed above the gripping portion, An outer diameter of the fourth engaging portion of the grip portion is smaller than an outer diameter of the third engaging portion of the inclined portion, and an abutting portion is disposed below the grip portion, the first engaging portion of the hitting portion Threading the outer side of the second joint portion of the inclined portion, forming the clamping groove between the first joint portion and the second joint portion, and sleeved with the third joint portion of the inclined portion An outer side of the fourth engaging portion of the grip portion forms the clamping groove between the third engaging portion and the fourth engaging portion; wherein The fixing joint has two joints, and the convex block of the fixed joint is fitted toward the clamping groove between the first joint portion and the second joint portion, and one of the fixed joints is disposed above the abutting portion Providing a groove for engaging the bottom end of the first joint portion, abutment portion of the fixed joint has a through hole communicating with the inner space, and the through hole provides the second joint portion to penetrate, so that the fixing The abutting portion of the connecting pipe is annularly engaged on the outer side of the second engaging portion, and the convex block of the other fixed connecting portion is fitted to the clamping groove between the third engaging portion and the fourth engaging portion Providing a groove for providing a bottom end of the third joint portion over the abutting portion of the fixed joint, and the through hole inside the abutting portion of the fixed joint for providing the fourth joint portion The abutting section of the fixed joint is annularly engaged on the outer side of the fourth joint section.

Further, the length of the fixed joint is 5.0 mm to 30.0 mm, and the length of the convex block of the fixed joint is 3.0 mm to 18.0 mm.

Further, the convex block of the fixed joint and the abutting section are integrated, and the outer surface of the abutting section of the fixed joint is a concave-convex surface, or a ring-shaped road, or a laser engraving, or an irregular shape type.

Further, the convex block of the fixed joint has a portion that is in contact with the clamping groove of the joint portion, and the joint portion is curved, or is internally chamfered, or has a shape of internal small convex shape. Formed as a cone, or a cone, or a triangular shape.

Further, the material of the fixed joint is selected from a resin material having a specific gravity of 0.7 to 1.9, a resin material is a polymeruloid, or an ABS thermoplastic polymer material (acrylonitrile butadiene styrene), or a PC polycarbonate is selected. (polycarbonate), or use high-strength rubber material containing PUR polyurethane.

Further, the ball striking portion, the oblique segment portion and the grip portion of the hollow rod body are of the same material combination, or the three are different material combinations, wherein the ball striking portion, the oblique segment portion and the grip portion The material of the holding part is selected from light metal with a specific gravity of 1.5~2.9, the light metal is aluminum alloy or magnesium alloy, or it is made of CFRP carbon fiber reinforced plastics or GFRP glass fiber reinforced plastics. FRP fiber reinforced plastics, or high-strength plastic materials with PCkg polycarbonate strength of 5kgf/mm ² or engineering plastics represented by PC polycarbonate (engineering) Plastics), or high-strength plastics with a strength of 3kgf/mm ² -9kgf/mm ² made of super engineering plastics represented by PEEK polymer materials (polyether ether ketone).

With this innovative and unique design, the present invention can achieve the following effects as compared with the prior art:

1. The joint portion of the hollow rod body of the present invention is connected to each other through the fixed joint tube In order to make the connection position between the joint portions of the hollow rod body more stable, the design effect of lifting the entire bat is not reduced, and the overall strength and high design of the bat can be improved.

2. The connection between the joint portion of the hollow rod body and the fixed joint of the present invention is further stabilized by the joint of the hollow rod body and the fixed joint by means of fixing by heat or shrinkage by boiling water. .

3. The joint portion of the hollow rod body of the present invention achieves a function more suitable for the joint portion of the hollow rod body by a combination of composite materials, thereby effectively relaxing the hand feeling during the playing of the ball and improving the feeling of the hand. The bat is more durable.

(customary)

1‧‧‧ bat

11, 21‧‧‧ hitting the ball

12.22‧‧‧ oblique section

13, 23‧‧‧ grips

2‧‧‧Composite bat

(this invention)

3‧‧‧ bat

4‧‧‧ hollow rod

40‧‧‧ joints

400‧‧‧Internal space

401‧‧‧Clamping slot

41‧‧‧Balling Department

411‧‧‧First joint

412‧‧‧ head cover

42‧‧‧ grip

421‧‧‧four junction

422‧‧‧Resistance Department

43‧‧‧ oblique section

431‧‧‧Second junction

432‧‧‧3rd junction

5, 5a, 5b‧‧‧ fixed takeover

51, 51a, 51b‧‧‧ convex block

52, 52a, 52b‧‧‧ abutment

521‧‧‧ Groove

522‧‧‧through hole

Figure 1: A partial cross-sectional perspective view of a conventional bat.

Fig. 2 is a cross-sectional view of Fig. 1.

Fig. 3 is a partially cutaway perspective view of another conventional composite bat.

Fig. 4 is a cross-sectional view of Fig. 3.

Fig. 5 is a partially cutaway perspective view showing the first embodiment of the hollow rod body and a joint portion of the present invention.

Figure 6 is a partially cutaway perspective view showing a second embodiment of the hollow rod body and a joint portion of the present invention.

Figure 7 is a partially cutaway perspective view showing the first embodiment of the hollow rod body and the two joint portions of the present invention.

Figure 8 is a cross-sectional view of Figure 7.

Fig. 9 is a partially enlarged view showing the joint between the fixed joint of Fig. 7 and the ball striking portion and the inclined portion.

Fig. 10 is a partially enlarged view showing the joint between the fixed joint of Fig. 7 and the inclined portion and the grip portion.

Figure 11 is a partially cutaway perspective view showing a second embodiment of the hollow rod body and the two joint portions of the present invention.

Fig. 12 is a cross-sectional view of Fig. 11.

Fig. 13 is a partially enlarged view showing the joint between the fixed joint of the Fig. 11 and the ball striking portion and the inclined portion.

Fig. 14 is a partially enlarged view showing the joint between the fixed joint and the inclined portion and the grip portion of Fig. 11.

Fig. 15 is a partially cutaway perspective view showing a third embodiment of the hollow rod body and the two joint portions of the present invention.

Figure 16 is a cross-sectional view of Fig. 15.

Fig. 17 is a partially enlarged view showing the combination between the fixed joint of the Fig. 15 and the ball striking portion and the inclined portion.

Figure 18 is a partial enlarged view of the joint between the fixed joint and the inclined portion and the grip portion of Fig. 15.

The purpose, technical contents, features and effects achieved by the present invention will be more readily understood by the following description in conjunction with the accompanying drawings.

Before the present invention is described in detail, it is noted that in the following description, like elements are denoted by the same reference numerals.

Referring to Figures 5, 6 and 7, the present invention provides a bat joint structure having a hollow rod 4 of an internal space 400, the hollow rod 4 comprising at least one engagement joint a joint portion 40, a joint groove 401 is formed between the joint portions 40, and at least one fixed joint tube 5, the fixed joint tube 5 includes a convex fitting that fits into the sandwiching groove 401 of the joint portion 40. a segment 51, and an abutting section 52 that is away from one end of the convex block 51 and connected to the joint portion 40.

Referring to Fig. 5, a partially cutaway perspective view of a first embodiment of a hollow rod body and a joint portion of the present invention. The hollow rod body 4 of the present invention is formed into a joint portion 40 which is engaged with each other. The hollow rod body 4 is provided with a ball striking portion 41. A first joint portion 411 is disposed below the ball striking portion 41. The ball striking portion 41 is disposed below the ball striking portion 41. a cover portion 412 is disposed above; and a grip portion 42 is disposed above the grip portion 42 A portion 421 is disposed below the grip portion 42 . The fourth joint portion 421 is connected to the first joint portion 411 of the ball striking portion 41 to be inclined to an outer diameter larger than the outer diameter of the grip portion 42 . a segment portion 43 having a second engaging portion 431 engaged with the first engaging portion 411 of the ball striking portion 41 and a fourth engaging portion 421 of the grip portion 42 The third engaging portion 432 is connected to the outside of the second engaging portion 431 of the inclined portion 43 by the first engaging portion 411 of the ball striking portion 41, so that the first engaging portion 411 and the second engaging portion The clamping groove 401 is formed between the segments 431; wherein the fixing connector 5 is one, and the convex block 51 of the fixing connector 5 faces the clamping between the first joint segment 411 and the second joint segment 431. The groove 401 is fitted with a groove 521 for providing a bottom end of the first joint portion 411. The abutment portion 52 of the fixed joint 5 has a connection between the inside and the inside of the abutment portion 52. a through hole 522 of the space 400, the second joint portion 431 is inserted into the through hole 522, and the abutting portion 52 of the fixed joint 5 is annularly engaged therein. The outer side of the second joint section 431.

Referring to Fig. 6, there is shown a partial cross-sectional perspective view of a second embodiment of a hollow rod body and a joint portion of the present invention. The hollow rod body 4 of the present invention is formed into a joint portion 40 which is engaged with each other. The hollow rod body 4 is provided with a ball striking portion 41. A first joint portion 411 is disposed below the ball striking portion 41. The 411 is connected to a slanted portion 43 having an outer diameter smaller than the outer diameter of the ball striking portion 41. The slanting portion 43 has a second engaging portion 431 integrally connected to the first engaging portion 411 of the ball striking portion 41, and a third engaging portion 432 away from the second engaging portion 431 and having an outer diameter smaller than the outer diameter of the second engaging portion 431, a head portion 412 is disposed above the ball striking portion 41; and a grip portion 42 for the grip portion A fourth engaging portion 421 is engaged with the third engaging portion 432 of the inclined portion 43 , and the third engaging portion 432 of the inclined portion 43 is sleeved on the holding portion 42 . An outer side of the fourth joint portion 421 is formed between the third joint portion 432 and the fourth joint portion 421, and a retaining portion 422 is disposed under the grip portion 42. The fixed joint 5 is The convex block 51 of the fixed joint 5 is fitted to the clamping groove 401 between the third joint portion 432 and the fourth joint portion 421. The abutting section 52 of the fixed joint 5 A groove 521 is provided on the bottom of the third joint portion 432. The abutment portion 52 of the fixed joint 5 has a through hole 522 communicating with the inner space 400. The fourth hole is provided in the through hole 522. The engaging portion 421 is penetrated such that the abutting portion 52 of the fixing joint 5 is annularly engaged on the outer side of the fourth joint portion 421.

Referring to Figures 7, 8 and Figures 9 and 10, a partial cross-sectional perspective view of the first embodiment of the hollow rod body and the two joint portions of the present invention is shown. The hollow rod 4 is formed into two joint portions 40 which are engaged with each other, and the fixed joint 5 is respectively connected between the joints of the joint portions 40. More specifically, the hollow rod body 4 is provided with a ball striking portion 41, a diagonal portion 43 and a grip portion 42. A first joint portion 411 is disposed below the ball striking portion 41, and a ball striking portion 41 is disposed above the ball striking portion 41. a head portion 412 having a second joint portion 431 that is engaged with the first joint portion 411 of the ball striking portion 41. The outer diameter of the second joint portion 431 of the slope portion 43 is smaller than the second joint portion 431. An outer diameter of the first engaging portion 411 of the ball striking portion 41 and a third engaging portion 432 having an outer diameter smaller than the second engaging portion 431 and having an outer diameter smaller than the second engaging portion 431. a fourth joint segment 421 that is engaged with the third joint portion 432 of the inclined portion 43 . The outer diameter of the fourth joint portion 421 of the grip portion 42 is smaller than the third joint portion of the slope portion 43 . An outer diameter of the 432 is disposed below the grip portion 42. The first engaging portion 411 of the ball striking portion 41 is sleeved outside the second engaging portion 431 of the oblique portion 43 so that the outer portion The clamping groove 401 is formed between the first engaging portion 411 and the second engaging portion 431, and the third engaging portion 432 of the inclined portion 43 is sleeved on the first portion of the holding portion 42. The clamping groove 401 is formed between the third joint portion 432 and the fourth joint portion 421; wherein the fixing joint 5 is two, and the convex block 51 of the fixed joint 5 A clamping groove 401 is formed between the first engaging portion 411 and the second engaging portion 431. Abutting portion 52 of the fixing joint 5 is provided with a bottom end of the first engaging portion 411. The recess 521, the abutting portion 52 of the fixed connecting tube 5 has a through hole 522 communicating with the inner space 400, and the second connecting portion 431 is provided in the through hole 522 to penetrate the fixing portion 431. The abutting portion 52 of the connecting tube 5 is annularly engaged on the outer side of the second engaging portion 431, and the other convex block 51 of the fixed connecting tube 5 faces between the third engaging portion 432 and the fourth engaging portion 421. The clamping groove 401 is fitted, and the other abutting portion 52 of the fixing pipe 5 is provided with a groove 521 for providing the bottom end of the third joint portion 432, and the other abutting portion of the fixed joint 5 The through hole 522 in the inner portion 52 provides the fourth joint portion 421 to penetrate, so that the abutting portion 52 of the fixed joint 5 is annularly engaged on the outer side of the fourth joint portion 421.

Referring to FIGS. 5, 6 and 7 again, in the hollow rod body 4 of the present invention, the ball striking portion 41 of the joint portion 40 is engaged with the grip portion 42, or the ball striking portion 41 and Between the inclined portion 43 and the inclined portion 43 and the grip portion 42 , the joint portion 40 of the hollow rod 4 is more stably connected by the fixing joint 5, and the hitting ball is increased. The bonding area between the portion 41 and the grip portion 42 or the ball striking portion 41 and the oblique portion 43 and the inclined portion 43 and the grip portion 42 are engaged to strengthen the bat The structure of the hollow rod 4 of 3 can improve the design effect of the bat 3, and can improve the overall strength and high design of the bat 3, effectively alleviating the feeling of the hand when the bat 3 plays, and improving the sense of feel. The durability of the bat 3 is made higher.

Referring to FIGS. 5, 6 and 7 again, in the embodiment of the one or two joint portions 40 of the hollow rod body 4 of the present invention, the convex block 51 of the fixed joint 5 and the joint portion 40 The portion of the engaging groove 401 that is in contact with the engaging portion 40 is formed into a shape that is curved and formed into a tapered shape, and is not limited thereto.

In other possible embodiments, as shown in FIGS. 11 to 14 , in the second embodiment of the hollow rod body and the two joint portions of the present invention, the fixed joint tube 5 a is substantially the same as the fifth, sixth and seventh figures. The fixed joint 5 is substantially identical except that the convex block 51a of the fixed joint 5a and the portion of the joint portion 40 that is in contact with the sandwiching groove 401 cooperate with the joint portion 40 to be internally chamfered. Shape, while shape In a cone shape. The first engaging portion 411 of the ball striking portion 41 and/or the third engaging portion 432 of the inclined portion 43 are internally chamfered, and the clamping groove 401 of the engaging portion 40 is tapered. The convex block 51a is fitted into the clamping groove 401 to form a connection. Moreover, the convex block 51a of the fixed joint 5a, the abutting portion 52a and the joint portion 40 of the hollow rod 4 are combined with the fixed joint 5 shown in FIGS. 5, 6 and 7. The joint portion 40 of the hollow rod 4 is assembled in the same manner, and the abutment portion 52a of the fixed joint 5a is also annularly engaged on the outer side of the second joint portion 431 and/or the same. The outer side of the four joint segments 421.

In other possible embodiments, as shown in FIGS. 15 to 18, in the third embodiment of the hollow rod body and the two joint portions of the present invention, the fixed joint tube 5b is substantially the same as the fifth and sixth figures and the first 7 is similar to the fixed joint 5, except that the convex block 51b of the fixed joint 5b is in contact with the clamping groove 401 of the joint portion 40, and the joint portion 40 is internally convex. The shape is shaped to form a cone shape. The first joint segment 411 of the ball striking portion 41 and/or the third joint segment 432 of the oblique segment portion 43 are in the shape of an inner small convex shape, and the second joint portion 431 of the oblique segment portion 43 And/or the fourth joint segment 421 of the grip portion 42 is formed in a shape of a small concave shape. When the sandwiching groove 401 of the joint portion 40 is tapered, the convex block 51b is embedded in the sandwiching groove. 401 forms a connection. Moreover, the convex block 51b of the fixed joint 5b, the abutting portion 52b and the joint portion 40 of the hollow rod body 4 are combined with the fixed joint 5 shown in FIGS. 5, 6 and 7 The joint portion 40 of the hollow rod 4 is assembled in the same manner, and the abutment portion 52b of the fixed joint 5b is also annularly engaged on the outer side of the second joint portion 431 and/or the same. The outer side of the four joint segments 421.

Referring to Figures 5 to 7 and Figures 11 and 15, the length of the fixed joints 5, 5a, 5b is 5.0 mm to 30.0 mm, and the convex block 51 of the fixed joints 5, 5a, 5b. The lengths of 51a and 51b are 3.0 mm to 18.0 mm. Further, the connection between the fixed joints 5, 5a, 5b and the joint portion 40 is continued, but is not limited to this embodiment. In other possible embodiments, heat is shrunk by boiling water, The temperature of the boiling water therein is controlled to be between 50 ° C and 95 ° C, and the convex blocks 51 , 51 a , 51 b reaching the fixed joints 5 , 5 a , 5 b can be tightly coupled with the joint portion 40 to be tightly joined. The bat 3 combination structure is more stable and secure to reduce the risk of breakage of the bat 3.

Referring to Figures 5 to 7 and Figures 11 and 15, the convex blocks 51, 51a, 51b of the fixed joints 5, 5a, 5b and the abutting sections 52, 52a, 52b are integrated. The outer surfaces of the abutting sections 52, 52a, 52b of the fixed joints 5, 5a, 5b are provided as concave and convex surfaces, or annular lines, or laser engraving, or irregular shapes, but are not limited thereto, and may be added. The design of the outer surface of the fixed joints 5, 5a, 5b can better show the unique style of the bat 3, and is different from the bat on the market today, increasing the high quality of the bat 3.

Referring to Figures 5 to 7 and Figures 11 and 15, the material of the fixed joints 5, 5a, 5b is selected from a resin material having a specific gravity of 0.7 to 1.9, and the resin material is a polymer resin (celluloid). ABS acrylonitrile butadiene styrene, or PC polycarbonate (polycarbonate), or high-strength rubber material containing PUR polyurethane, but not limited to this.

Referring to Figures 5 to 7 and Figures 11 and 15, the ball striking portion 41, the oblique portion 43 and the grip portion 42 of the hollow rod 4 are of the same material combination or three For the combination of different materials, the material of the ball striking portion 41, the inclined portion 43 and the grip portion 42 is selected from a light metal having a specific gravity of 1.5 to 2.9, the light metal is an aluminum alloy or a magnesium alloy, or a CFRP carbon fiber reinforced plastic is selected. Carbon fiber reinforced plastics) or FRP fiber reinforced plastics made of GFRP glass fiber reinforced plastics, or high strength with a strength of 5kgf/mm ² containing PC polycarbonate (polycarbonate) Plastic materials, or engineering plastics represented by PC polycarbonate, or super engineering plastics represented by PEEK polymer (ketone polymer material) (polyether ether 1ketone) High-strength plastic of 3kgf/mm ² -9kgf/mm ² .

The hollow rod body 4 of the present invention is provided with the fixing joints 5, 5a, 5b for providing a more stable connection position between the joint portions 40 of the hollow rod body 4, and the present invention can overcome the conventional compound type. The segmented structure of the bat 2, after the hitting, the joint position between the parts of the composite bat 2 is loosened by the impact force, so that the joint position between the parts of the composite bat 2 is not firm. The problem. The invention completely breaks through the production mode of the current similar products, and the industrial utilization benefits and values, and the fact that the practical effects and safety of the products achieved are sufficient to meet the practical use value of the invention patent elements, and the patents are legally proposed. The application is the main reason for the present invention to be solved.

The foregoing is only a preferred embodiment of the present invention, which is intended to be understood by those skilled in the art and is not intended to limit the scope of the present invention. Equivalent variations or modifications of the shapes, configurations and features are intended to be included within the scope of the present invention.

Claims (10)

A bat-bonding structure, the bat having an inner space hollow rod body, the hollow rod body comprising at least one engaging portion that is engaged with each other, the engaging portion forming a clamping groove between the engaging portions; and at least one fixing Taking over, the fixed socket includes a convex block in the clamping groove facing the joint portion, and an abutting portion away from the end of the protruding block and connecting the joint portion, and the connection between the fixed joint and the joint portion In order to continue, or boiling water heat shrink, the boiling water temperature is controlled at 50 ° C ~ 95 ° C to make it shrink and insert. The bat combination structure according to claim 1, wherein the hollow rod body has one joint portion, and the hollow rod body is provided with a ball striking portion, and a first joint portion is disposed below the ball striking portion. a cover portion is disposed above the ball striking portion; and a grip portion is disposed above the grip portion, and a fourth engaging portion is disposed above the grip portion, and an abutting portion is disposed below the grip portion, the fourth engaging portion facing the ball striking portion The first engaging portion is connected to a diagonal portion having an outer diameter larger than an outer diameter of the grip portion, the inclined portion having a second engaging portion that is engaged with the first engaging portion of the ball striking portion, and a a third joint segment integrally connected to the fourth joint portion of the grip portion, and the first joint portion of the ball striking portion is sleeved outside the second joint portion of the inclined portion to make the first joint Forming the clamping groove between the segment and the second engaging portion; wherein the fixing connecting piece is one, the convex block of the fixed connecting piece faces the clamping groove between the first engaging portion and the second engaging portion Engaging, the upper end of the abutment section of the fixed joint is provided to provide a bottom end joint of the first joint section a groove, the inside of the abutting section of the fixed joint has a space connecting the inner space a through hole is provided in the through hole to provide the second joint portion to penetrate, so that the abutting portion of the fixed joint is annularly engaged on the outer side of the second joint portion. The bat combination structure according to claim 1, wherein the hollow rod body has one joint portion, and the hollow rod body is provided with a ball striking portion, and a first joint portion is disposed below the ball striking portion. The first engaging portion is connected to a diagonal portion having an outer diameter smaller than an outer diameter of the ball striking portion, the inclined portion having a second engaging portion integrally connected with the first engaging portion of the ball striking portion, and a distance away from a second engaging section having an outer diameter smaller than an outer diameter of the second engaging section, a cap portion disposed above the ball striking portion, and a grip portion having a diagonal portion disposed above the grip portion The third joint section of the third joint section is engaged with each other, and the third joint section of the slope section is sleeved outside the fourth joint section of the grip portion, so that the third joint section and the third joint section Forming a clamping groove between the four engaging sections, and abutting portion is disposed under the holding portion; wherein the fixing joint is one, the convex block of the fixing joint faces the third joint section and the fourth joint section The clamping groove is fitted, and the fixing pipe is disposed above the abutting section to provide the a groove engaged at a bottom end of the third joint portion, the abutting portion of the fixed joint has a through hole communicating with the inner space, and the through hole provides a penetration of the fourth joint portion to make the joint of the fixed joint A segment ring is coupled to the outside of the fourth joint segment. The bat combination structure according to claim 1, wherein the hollow rod body forms two joint portions that are engaged with each other, and the clip is formed between each of the joint portions. The fixing groove is connected to each of the clamping grooves. The bat combination structure according to claim 4, wherein the hollow rod body is provided with a ball striking portion, a slanting portion and a grip portion, and a first joint portion is disposed below the ball striking portion, Batting a top cover portion is disposed above, the inclined portion has a second engaging portion that is engaged with the first engaging portion of the ball striking portion, and the outer diameter of the second engaging portion of the inclined portion is smaller than the ball striking portion An outer diameter of the first joint segment, and a third joint portion away from the end of the second joint portion and having an outer diameter smaller than the second joint portion, and the third joint with the slope portion is disposed above the grip portion a fourth joint segment that is joined to each other, the outer diameter of the fourth joint portion of the grip portion is smaller than the outer diameter of the third joint portion of the oblique portion, and an abutting portion is disposed under the grip portion to The first engaging portion of the ball striking portion is sleeved outside the second engaging portion of the inclined portion, so that the clamping groove is formed between the first engaging portion and the second engaging portion, and the inclined portion is formed The third engaging portion of the portion is sleeved outside the fourth engaging portion of the grip portion, so that the clamping groove is formed between the third engaging portion and the fourth engaging portion; wherein the fixing joint is two a convex block of the fixed joint is fitted to the clamping groove between the first joint portion and the second joint portion A recess for providing a bottom end of the first joint portion is disposed above the abutting portion of the fixed joint, and abutment portion of the fixed joint has a through hole communicating with the inner space, and the through hole is provided The second engaging portion penetrates such that the abutting portion of the fixed connecting ring is annularly engaged on the outer side of the second engaging portion, and the convex portion of the fixed connecting portion faces the third engaging portion and the fourth engaging portion The clamping groove between the segments is fitted, and the other abutting portion of the fixing pipe is provided with a groove for providing the bottom end of the third joint portion, and the other of the abutment portion of the fixed joint is The through hole provides a penetration of the fourth joint portion, so that the abutting portion of the fixed joint is annularly engaged on the outer side of the fourth joint portion. The bat-bonding structure according to any one of the preceding claims, wherein the length of the fixed joint is 5.0 mm to 30.0 mm, and the length of the convex block of the fixed joint is 3.0 mm. ~18.0mm. The bat-bonding structure according to any one of the preceding claims, wherein the convex block of the fixed joint and the abutting section are integrated, and the abutting section of the fixed joint The outer surface is a concave-convex surface, or a ring-shaped grain, or a laser engraving, or an irregular shape. The bat-bonding structure according to any one of the preceding claims, wherein the convex block of the fixed joint and the portion of the joint portion that is in contact with the sandwiching groove cooperate with the joint portion It is formed into a tapered shape, a tapered shape, or a triangular shape for the shape of bending, or internal chamfering, or internal small convex molding. The bat-bonding structure according to any one of the preceding claims, wherein the material of the fixed joint is selected from a resin material having a specific gravity of 0.7 to 1.9, and the resin material is a celluloid. Or use ABS thermoplastic polymer material (acrylonitrile butadiene styrene), or choose PC polycarbonate (polycarbonate), or use high-strength rubber material containing PUR polyurethane. The bat combination structure according to the second or the third or fifth aspect of the invention, wherein the ball striking portion, the oblique portion and the grip portion of the hollow rod body are of the same material combination, or The material is a combination of different materials, wherein the material of the ball striking portion, the oblique portion and the grip portion is selected from a light metal having a specific gravity of 1.5 to 2.9, the light metal is an aluminum alloy or a magnesium alloy, or a CFRP carbon fiber reinforced plastic is selected. (carbon fiber reinforced plastics) or FRP fiber reinforced plastics made of GFRP glass fiber reinforced plastics, or high strength of 5kgf/mm ² using PC polycarbonate (polycarbonate) Strength plastic material, or engineering plastics represented by PC polycarbonate, or strength of super engineering plastics represented by PEEK polymer (polyether ether ketone) It is a high-strength plastic of 3kgf/mm ² -9kgf/mm ² .