JPH0739866U - Balance and weight adjustment tennis racket - Google Patents

Abstract

(57) [Summary] [Aim] A tennis racket that responds to the strength, skill and taste of the tennis player one after another. It is economical and a balance and weight adjustment type tennis racket aimed at preventing failure of the tennis elbow. It is about. [Structure] Inside the grip 1, a hollow 4 in which the weight 2 moves is formed, and the weight 2 moves in the hollow 4 as the adjusting rod 3 rotates. The adjusting rod 3 has an adjusting rod support hole 5 and a fixing plate 6.
Supported by. The grip end 7 is fixed to the grip 1 together with the fixing plate 6 with wood screws 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a tenis racket composed of a grip, a frame and a shaft.

[0002]

[Prior art]

 The balance and weight of conventional tennis rackets are fixed and shipped by the producers in advance, so many types of tennis rackets have been created according to the strength, skill and taste of the tennis player.

[0003]

[Problems to be solved by the device]

 Tennis players may have to put up with their tennis rackets because they have to replace tenis rackets due to their own strength, skill improvement, and changes in their tastes, but this may hinder their ability to improve their competitiveness. It becomes a cause of breakdowns represented by tennis elbows. With the exception of its drawbacks, this proposal seeks to develop a tennis racket that can change the balance and weight at any time according to the requirements of the tennis player.

[0004]

[Means for Solving the Problems]

 The solution means will now be described with reference to the drawings. (A) In FIGS. 1 to 6, 1 is a grip portion of a tennis racket, and a hollow 4 is formed inside so that a weight 2 can move. ing. (B) Inside the weight 2, a female screw matching the male screw of the adjusting rod 3 is cut, and the weight 2 moves in the hollow 4 according to the rotation of the adjusting rod 3. (C) One end of the adjusting rod 3 is supported by the adjusting rod support hole 5 formed at the tip of the hollow portion 4, and the other one is supported by the fixing plate 6. (D) The grip end 7 is fixed to the grip portion 1 together with the fixing plate 6 with wood screws 8.

[0005]

[Work]

 Since the present proposal has the structure as described above, when using this, the weight 2 is detached or replaced by a weight having a different weight to adjust the weight, and the adjustment rod 3 is turned to rotate the weight 2 Move and adjust to the proper balance.

[0006]

【Example】

 In implementing the present invention, the following can be performed. (A) By inserting the spring 9 into the adjustment rod support hole 5 and selecting the depth of the adjustment rod support hole 5 and the length and strength of the spring 9 appropriately, the weight of the tennis racket shaken at the time of hitting is further reduced by 2 It is accelerated by the centrifugal force generated from it, which is effective when servicing, smashing, or when striking strongly with a ground stroke. (B) The shape of the weight 2 may be any shape as long as it does not idle in the hollow 4, but a rectangular shape is easy and inexpensive in processing. (C) The weight 2 is formed into a shape that can be moved in the frame 10, and is fixed to the frame 10 by tightening the screws 11. The frame 10 may be embedded in a shaft or a frame, or may be attached with an adhesive. (D) It can be applied to badminton and squash.

[0007]

[Effect of device]

 Therefore, the present invention can respond to the tennis player's muscular strength, skill and preference one by one, so that one racket can sufficiently satisfy the requirements of the tennis player, and it is economical. By selecting, there is an effect of preventing a failure such as a tennis elbow.

[Brief description of drawings]

FIG. 1 is a plan sectional view of the present invention.

FIG. 2 is a front view of the present invention.

FIG. 3 is a perspective view in which the weight 2 is divided.

[Fig. 4] Plan view of open throat type

FIG. 5 is a plan view with a spring attached.

FIG. 6 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 1 is a grip portion of a tennis racket 2 is a weight 3 is an adjusting rod 4 is a hollow portion 5 is an adjusting rod supporting hole 6 is a fixing plate 7 is a grip end 8 is a wood screw 9 is a spring 10 is a frame 11 is a screw

Claims (5)

[Scope of utility model registration request] Claim: What is claimed is: 1. A balance and weight-adjustable tennis racket in which a grip of the tennis racket and movable weights such as shafts and frames are provided. 2. A hollow 4 inside a grip 1 of a tennis racket.
The adjusting rod 3 having the weight 2 attached thereto is provided.
Balance and weight adjustable tennis racket. 3. A balance-and-weight-adjustable tennis racket according to claim 1, wherein the weight 2 is divided and detachable. 4. The balance and weight adjusting type tennis racket according to claim 1, wherein both ends of an adjusting rod 3 having a weight 2 are attached to the ginkgo portion of an open throat type tennis racket. 5. A balance and weight adjusting type tennis racket according to claim 1, wherein a spring 9 is inserted in the adjusting rod supporting hole 5.