Shock Absorbing Structure of Racket

Abstract

A shock absorbing structure of a racket contains: a head and an absorption member matingly contacting with an internal fence of the head. The absorption member is a hollowly tubular structure and covers the internal fence totally. When the head is made of carbon-fiber composite material, the absorption member is made of any one of Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head is made of metal or aluminum alloy, the absorption member is made of any one of Thermosetting Elastomers, Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head and the absorption member are made of different materials, an amplitude of the head is different from an amplitude of the absorption member, and the head interferes the absorption member, thus absorbing vibration.

Claims

1. A shock absorbing structure of a racket comprising: a head and an absorption member matingly contacting with an internal fence of the head.

2. The shock absorbing structure as claimed in claim 1, wherein the absorption member is a hollowly tubular structure and covers the internal fence totally.

3. The shock absorbing structure as claimed in claim 1, wherein the absorption member is multiple parallel straps.

4. The shock absorbing structure as claimed in claim 3, wherein the multiple parallel straps of the absorption member are separately arranged on the internal fence of the head, and a gap is defined between any two adjacent parallel straps.

5. The shock absorbing structure as claimed in claim 4, wherein an area of a part of the internal fence covered by the absorption member is more than an area of the other of the internal fence which is not covered by the absorption member.

6. The shock absorbing structure as claimed in claim 4, wherein a corner of the internal fence of the head is covered by the absorption member.

7. The shock absorbing structure as claimed in claim 1, wherein when the head is made of carbon-fiber composite material, the absorption member is made of any one of Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU).

8. The shock absorbing structure as claimed in claim 1, wherein when the head is made of metal or aluminum alloy, the absorption member is made of any one of Thermosetting Elastomers, Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU).

9. The shock absorbing structure as claimed in claim 1, wherein the racket is any one of a tennis racket, a badminton racket and a squash racket.

10. The shock absorbing structure as claimed in claim 9, wherein the tennis racket includes a handle, a connection tube, and a frame which are tubular and are configured to define and surround the head.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is a side plan view showing the assembly of a shock absorbing structure of a racket according to a first embodiment of the present invention.

[0012] FIG. 2 is a cross sectional view taken along the line of A-A of FIG. 1 according to the first embodiment of the present invention.

[0013] FIG. 3 is a cross sectional view taken along the line of A-A of FIG. 1 according to a second embodiment of the present invention.

[0014] FIG. 4 is a cross sectional view taken along the line of B-B of FIG. 1 according to the first embodiment of the present invention.

[0015] FIG. 5 is a cross sectional view taken along the line of B-B of FIG. 1 according to the second embodiment of the present invention.

[0016] FIG. 6 is a cross sectional view taken along the line of C-C of FIG. 1 according to the first embodiment of the present invention.

[0017] FIG. 7 is a cross sectional view taken along the line of C-C of FIG. 1 according to the second embodiment of the present invention.

[0018] FIG. 8 is a cross-sectional perspective view showing a part of the shock absorbing structure of the racket according to the first embodiment of the present invention.

[0019] FIG. 9 is a cross-sectional perspective view showing a part of the shock absorbing structure of the racket according to the second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] With reference to FIGS. 1-7, a shock absorbing structure of a racket (such as a tennis racket 10) according to a preferred embodiment of the present invention, the tennis racket 10 comprises a head 20. Alternatively, the racket is a badminton racket or a squash racket.

[0021] The tennis racket 10 includes a handle 11, a connection tube 12, and a frame 13 which are tubular and are configured to define and surround the head 20, wherein the head 20 includes an absorption member 30 matingly contacting with an internal fence 21 of the head 20. Referring to FIGS. 2, 4, 6 and 8, the absorption member 30 is a hollowly tubular structure 31 and covers the internal fence 21 totally. As shown in FIGS. 3, 5, 7 and 9, the absorption member 30 is multiple parallel straps 32 separately arranged on the internal fence 21 of the head 20, wherein a gap 33 is defined between any two adjacent parallel straps 32, and a part of the internal fence 21 corresponding to the gap 33 is not covered by the absorption member 30; an area of the other of the internal fence 21 covered by the absorption member 30 is more than an area of the part of the internal fence 21 which is not covered by the absorption member 30. In addition, a corner of the internal fence 21 of the head 20 is covered by the absorption member 30.

[0022] When the head 20 is made of carbon-fiber composite material, the absorption member 30 is made of any one of Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head 20 is made of metal or aluminum alloy, the absorption member 30 is made of any one of Thermosetting Elastomers, Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head 20 and the absorption member 30 are made of different materials, an amplitude of the head 20 is different from an amplitude of the absorption member 30, and the head 20 interferes the absorption member 30, thus absorption vibration.

[0023] While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.