TWM660663U - Badminton racket grip structure - Google Patents

Abstract

A badminton racket grip structure includes: a main body, a middle tube holder, a front sleeve mounted on the front end of the main body, and a rear end cover mounted on the rear end of the main body; wherein the main body is made of foam material and is made by coating injection molding technology, and the middle tube holder is buried inside the main body to strengthen the support strength of the grip on the middle tube, and can also reduce the vibration transmitted to the main body when the middle tube is stressed to provide a shock-absorbing effect. The new badminton racket grip is made by coating injection molding technology to simultaneously complete the combination of the main body, the middle tube holder and the rear end cover, and then the front sleeve is assembled at the front end of the main body, and finally the middle tube is inserted into the middle tube holder, which can reduce the assembly steps of parts and help to increase production speed.

Description

Badminton racket grip structure

This novel invention relates to the structure of a badminton racket, in particular to a handle structure of a badminton racket.

The structure of a badminton racket consists of three parts: the head frame, the middle tube and the grip. The head frame is threaded to form the hitting surface, and the head frame is connected to the grip through the middle tube. The grip of a traditional badminton racket is usually made of stronger and less prone to breaking wood. In addition to the fact that wood is easy to obtain, easy to process, and low in price, wood has a good damping effect, which helps absorb the vibration generated when the racket hits the ball.

In the approved Republic of China New Patent Certificate No. I772198, a badminton racket is proposed, which includes a racket frame, a grip, a front cover and a middle tube. The grip includes a grip portion, a sleeve portion, a fixing member, a plurality of supporting members and an adjustment ring. The grip portion has a front end. The sleeve portion is connected to the front end of the grip portion. The sleeve portion has a first top surface and a first opening, and the first opening is located at the first top surface. The fixing member is connected to the first top surface and extends from the first opening to the inside of the grip portion. The supporting members are arranged in the grip. The supporting members respectively have a front edge and a recess. The front edge is connected to an inner side wall of the sleeve portion, and the recess is located at the front edge. The adjustment ring is arranged in the recess of the supporting members. The front sleeve is mounted on the sleeve portion of the grip. One end of the middle tube is connected to the racket frame, and the other end passes through the first opening to be inserted into the fixing member.

The aforementioned patent claims that the force borne by the middle tube can be dispersed to the fixings and the adjustment ring on the outside, thereby improving the structural strength and allowing the badminton racket to be used in higher-strength hitting types. However, the badminton racket proposed in the aforementioned patent bears the force from the middle tube completely by the front cover and the fixings. The front cover does not bear the force from the middle tube and is only a component that forms a complete appearance and has only a simple decorative effect. Therefore, the small section of the middle tube in the front cover has no support at all, resulting in its structural strength being obviously insufficient.

On the other hand, currently, the multiple parts of the handle of most badminton rackets are manufactured separately first, and then the multiple parts are assembled and combined to complete the manufacture of the handle. The production process requires many assembly steps, which is not conducive to increasing the production speed.

The technical problem to be solved by this new invention is to propose a badminton racket grip structure that can enhance the support strength of the grip on the center tube, have a shock-absorbing effect, and reduce the number of assembly steps of parts, which helps to increase production speed.

In order to solve the above technical problems, a preferred embodiment of the grip structure of the new badminton racket includes: a main body, a front sleeve mounted on the front end of the main body, and a rear end cover mounted on the tail end of the main body, the interior of the front sleeve is hollow for a middle tube of the badminton racket to pass through; the improved part is: the main body is made of foam material and is made by coating injection molding technology, and a middle tube fixer is embedded in the interior of the main body, and the middle tube fixer includes:

A center column is a tubular element having a hollow portion. The front end of the center column has an opening connected to the hollow portion. The opening is used for inserting the center tube into the hollow portion. The rear end of the center column is closed. The inner wall of the center column has a plurality of shock-absorbing ribs protruding toward the axial direction. The shock-absorbing ribs extend in a direction parallel to the axial direction of the center column. The shock-absorbing ribs can press the center tube tightly.

A plurality of reverse spines are arranged on the outer side of the center column, and the reverse spines are arranged at different axial positions of the center column at intervals to fix the center tube holder to the main body to prevent the center tube holder from coming off along the axial direction of the main body when an external force is applied; and

Several anchor wings are arranged on the outer side of the central column and the anti-spinous part and extend outward along the radial direction. The anchor wings are covered inside the main body.

As a preferred embodiment of the grip structure of the new badminton racket, the reverse spine portion is a cone, and the cone tapers from the front end of the center column toward the rear end.

Preferably, the shape of the pyramid is a circular pyramid or a polygonal pyramid.

As a preferred embodiment of the grip structure of the new badminton racket, the foam material used in the main body is nylon foam material or polypropylene foam material.

As a preferred embodiment of the grip structure of the new badminton racket, the middle tube fixer is made of a mixed plastic of nylon and carbon fiber, wherein the mixing ratio of nylon to carbon fiber is 9:1.

As a preferred embodiment of the grip structure of the new badminton racket, the middle tube fixer is made of a mixed plastic of nylon and glass fiber, wherein the mixing ratio of nylon to glass fiber is 9:1.

The advantages and effects of the new badminton racket grip structure are: the new badminton racket grip is made by coating injection molding technology to simultaneously complete the combination of the main body, the middle tube holder and the rear end cover, which can reduce the assembly steps of parts; the middle tube of the badminton racket can be firmly fixed to the middle tube holder, and the middle tube holder can also strengthen the support strength of the grip on the middle tube, and reduce the vibration transmitted to the main body when the middle tube is stressed to provide a shock-absorbing effect.

The specific implementation method, technical features and effects of this new model will be described below with accompanying drawings.

10: Main body

20: Front casing

21: Bolts

30: Rear end cover

40: Middle pipe

50: Middle tube fixer

51: Middle column

511: Hollow part

512: Open your mouth

513: Tail end

52: Reverse spine

53: Anchor Wing

54: shock absorbing ribs

M:Mold

Figure 1 is a structural appearance diagram of an embodiment of the grip structure of the new badminton racket.

Figure 2 is a longitudinal cross-sectional structural diagram of the embodiment structure of Figure 1.

Figure 3 is the cross-sectional structural diagram at the A-A position in Figure 2.

Figure 4 is a structural exploded view of the embodiment structure of Figure 1.

Figure 5 is a partial structural diagram of the grip structure of the new badminton racket, showing the front structure of the middle tube fixer.

Figure 6 is the left side view of Figure 5.

Figure 7 is the right side view of Figure 5.

Figure 8 is a schematic diagram of the manufacturing process of the grip structure of the new badminton racket.

In the embodiments disclosed in the patent specification and drawings of this new type, the directions mentioned therein (such as up, down, left, right, front and back) are based on the contents shown in the drawings and are used to illustrate the relative relationship between the various elements or structures in the embodiments (such as position relationship, connection relationship and action relationship). In principle, when the positions of the elements or structures mentioned in this new type of specification match those shown in the drawings, the directions mentioned will be appropriate. If the positions of the elements or structures mentioned in this new type of specification change, the directions mentioned should also be changed accordingly.

First, please refer to Figures 1 and 2, which are the structural appearance diagrams of an embodiment of the grip structure of the new badminton racket and its longitudinal cross-sectional structural diagram.

A preferred embodiment of the grip structure of the new badminton racket includes: a main body 10, a front sleeve 20 mounted on the front end of the main body 10, and a rear end cover 30 mounted on the rear end of the main body 10. The interior of the front sleeve 20 is hollow for a middle tube 40 of the badminton racket to pass through.

The improved parts of the present invention include: the main body 10 is made of foam material and is made by coating injection molding technology, and a middle tube fixer 50 is embedded inside the main body 10. As shown in a preferred embodiment of FIG. 3, after the main body 10 is made of foam material and is made by coating injection molding technology, the middle tube fixer 50 will be coated inside the main body 10 made of foam material.

Please refer to Figures 5 to 7, a preferred embodiment of the middle tube fixer 50 includes: a middle column 51, a plurality of reverse spines 52, and a plurality of anchoring wings 53.

The center column 51 is a tubular element having a hollow portion 511. The front end of the center column 51 has an opening 512 connected to the hollow portion 511. The opening 512 is used for inserting the center tube 40 of the badminton racket into the hollow portion 511. The rear end 513 of the center column 51 is closed. The inner wall surface of the center column 51 has a plurality of vibration-absorbing ribs 54 protruding toward the axis direction (see FIGS. 6 and 7). The vibration-absorbing ribs 54 are arranged along the plane. The shock-absorbing ribs 54 extend in the axial direction of the center column 51. The shock-absorbing ribs 54 can press the center tube 40 of the badminton racket (see Figure 3). By reducing the contact area between the center tube 40 and the center tube holder 50, the vibration transmitted to the main body 10 when the center tube 40 is subjected to force is reduced to provide a shock-absorbing effect. On the other hand, the main body 10 made of foam material can also further increase the shock-absorbing effect through the material properties of the foam material.

A plurality of reverse spines 52 are disposed on the outer side of the center column, and the reverse spines 52 are disposed at different axial positions of the center column 51 at intervals. A preferred embodiment of the reverse spine 52 is a cone, and the cone tapers from the front end toward the rear end of the center column 51. In a preferred embodiment, the shape of the cone can be a circular cone (the cross-sectional shape is circular) or a polygonal cone (the cross-sectional shape is a polygon). The reverse spines 52 can fix the center tube fixer 50 inside the main body 10 to prevent the center tube fixer 50 from coming out along the axial direction of the main body 10 when subjected to external force. Those who have general knowledge in the technical field to which the present invention belongs should understand that in other embodiments, the shape of the reverse ratchet portion 52 can also be an inverted hook-shaped element or a sawtooth-shaped element.

The anchoring wings 53 are disposed on the outer sides of the center column 51 and the reverse spines 52 and extend outwardly along the radiation direction. Preferably, the contour shape of the wing surfaces of the anchoring wings 53 matches the outer shape of the main body 10. Specifically, the anchoring wings 53 are covered inside the main body 10 and extend as far as possible. The function of the anchoring wings 53 is to ensure that the middle tube fixture 50 is anchored inside the main body 10 and to provide the middle tube 10 with a stable structure. The anti-twisting ability of the holder 50 prevents the middle tube holder 50 from twisting or loosening inside the main body 10 due to external force; on the other hand, the contact area between the middle tube holder 50 and the main body 10 can be increased by a plurality of reverse spines 52 and a plurality of anchoring wings 53, so that the force acting on the racket face and the middle tube 40 of the badminton racket can be fully dispersed to the main body 10, avoiding the problem of stress concentration and resulting in damage.

As a preferred embodiment of the present invention, the front sleeve 20 and the rear end cover 30 are made of plastic injection molding technology, preferably nylon 6, nylon 66 or nylon 12; the middle tube holder 50 is made of plastic injection molding technology, and in a preferred embodiment, the middle tube holder 50 is made of a mixed plastic of nylon and carbon fiber, wherein the mixing ratio of nylon to carbon fiber is 9:1; in another preferred embodiment, the middle tube holder 50 is made of a mixed plastic of nylon and glass fiber, wherein the mixing ratio of nylon to glass fiber is 9:1.

Please refer to Figure 8, as a preferred embodiment of the present invention, the handle of the present badminton racket is manufactured by coating injection molding technology and the main body 10, the middle tube holder 50 and the rear end cover 30 are assembled at the same time, and then the front sleeve 20 is assembled at the front end of the main body 10, and finally the middle tube 40 (including the racket face) of the badminton racket is inserted into the middle tube holder 50, thereby completing the manufacture of the handle of the badminton racket, which can reduce the assembly steps of parts and help to increase the production speed. The foam material used in the main body 10 is nylon foam material or polypropylene (abbreviated as PP) foam material (PP foam material).

One of the preferred implementation methods and processes is shown in FIG. 8 , where (1) the rear end cover 30 and the middle tube fixer 50 are first placed in a mold M (see FIG. 8 (A)); (2) the foaming material is then injected into the mold M by the coating injection molding technology to form the main body 10, at which time the middle tube fixer 50 will be buried in the main body 10, and the tail section of the main body 10 will also be combined with the rear end cover 30 (see FIG. 8 (B)); (3) finally, the combined rear end cover 30 and the main body 10 (with the middle tube fixer 50 buried inside) are taken out of the mold M, and the front sleeve 20 is assembled on the front end of the main body 10, for example by gluing (see FIG. 8 (C)). In another embodiment, the front sleeve 20 is bonded to the front end of the main body 10 by adhesive and a bolt 21 is used to assemble the front sleeve 20 to the front end of the main body 10 (see Figure 4).

Although the present invention has been disclosed through the above-mentioned embodiments, it is not intended to limit the present invention. Anyone familiar with similar techniques can make some changes and modifications within the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be subject to the definition of the claims attached to this specification.

10: Main body

20: Front casing

21: Bolts

30: Rear end cover

40: Middle pipe

50: Middle tube fixer

52: Reverse spine

53: Anchor Wing

Claims (6)

A badminton racket grip structure, comprising: a main body, a front sleeve mounted on the front end of the main body, and a rear end cover mounted on the rear end of the main body, the front sleeve is hollow inside for a middle tube of the badminton racket to pass through; its characteristics are: the main body is made of foam material and is made by coating injection molding technology, a middle tube fixer is embedded inside the main body, and the middle tube fixer includes: A center column, which is a tubular element, has a hollow portion, and the front end of the center column has an opening connected to the hollow portion, the opening is used for the center tube to be inserted into the hollow portion, the rear end of the center column is closed, and the inner wall of the center column has a plurality of shock-absorbing ribs protruding toward the axial direction, the shock-absorbing ribs extend in a direction parallel to the axial direction of the center column, and the shock-absorbing ribs can press the center tube; A plurality of reverse spines are arranged on the outer side of the center column, and the reverse spines are arranged at different axial positions of the center column at intervals to fix the center tube fixture to the main body to prevent the center tube fixture from coming out along the axial direction of the main body when subjected to external force; and A plurality of anchoring wings are arranged on the outer sides of the central column and the anti-spinous parts and extend outward along the radiation direction. The anchoring wings are covered inside the main body. The badminton racket grip structure as described in claim 1, wherein the reverse spine portion is a cone, and the cone tapers from the front end of the center column toward the rear end. The badminton racket grip structure as described in claim 2, wherein the shape of the cone is a circular cone or a polygonal cone. The badminton racket grip structure as described in claim 1, wherein the foam material used in the main body is nylon foam material or polypropylene foam material. The badminton racket grip structure as described in claim 1, wherein the middle tube holder is made of a mixed plastic of nylon and carbon fiber, and the mixing ratio of the nylon and the carbon fiber is 9:1. The badminton racket grip structure as described in claim 1, wherein the middle tube holder is made of a mixed plastic of nylon and glass fiber, and the mixing ratio of the nylon to the glass fiber is 9:1.

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