KR20160002936U

KR20160002936U - Racket frame

Info

Publication number: KR20160002936U
Application number: KR2020150007117U
Authority: KR
Inventors: 웬-후아 리
Original assignee: 씨비엔 인터내셔널 컴퍼니 리미티드
Priority date: 2015-02-13
Filing date: 2015-11-03
Publication date: 2016-08-23
Also published as: JP3201966U; TWM502492U

Abstract

The racket frame comprises a handle (3); And a ring-shaped frame body (4) connected to the handle (3). The ring-shaped frame body 4 has an inner circumferential surface 41, an outer circumferential surface 42 surrounding the inner circumferential surface 41, and two opposed connecting surfaces 43. The inner circumferential surface and the outer circumferential surface (41, 42) are arranged for penetrating extension of the string. The two opposing connecting surfaces 43 interconnect the inner and outer circumferential surfaces 41 and 42 and each of the connecting surfaces 43 protrude outward and form a ring- (431).

Description

Racket frame {RACKET FRAME}

The present invention relates to a racquet frame, and more particularly to a racquet frame having a high structural strength and capable of reducing wind resistance during use.

Badminton and tennis are sports that require responsiveness and explosiveness from athletes. In particular, the swing speed is usually the key to a player's success.

Conventional badminton racquets generally have a rounded or oval cross section, for example. 1 illustrates a conventional badminton racket 11 having an elliptical cross section. When the racket 11 is swung in the direction A, the windward side 12 of the badminton racket 11 - the curved side - is subject to relatively large wind resistance. In such an environment, it is difficult for the athlete to reduce the force required to improve swing speed or swing. As a result, a player using the racquet 11 may become easily tired due to improper racket-swing motion or even be injured by the burden of his / her arm.

Therefore, the object of the present invention is to provide a racquet frame which can reduce wind resistance during use and which has a relatively high structural strength.

Thus, the racket frame of the present invention comprises a handle and a ring-shaped frame body connected to the handle. The ring-shaped frame body has an inner circumferential surface, an outer circumferential surface surrounding the inner circumferential surface, and two opposed connecting surfaces. The inner circumferential surface and the outer circumferential surface are arranged for extending the line through these circumferential surfaces. The two opposing connecting surfaces interconnect the inner circumferential surface and the outer circumferential surface, and each connecting surface has a crest portion protruding outward and having a ring-like shape and a wavy-shape.

Other features and advantages of the present invention will become apparent from the following detailed description of embodiments with reference to the accompanying drawings.

1 is a partial cross-sectional view of a conventional badminton racket.
2 is a perspective view of an embodiment of a racket frame according to the present invention in which the racket frame is shown as a badminton racket frame.
Figure 3 is a partial front view of an embodiment.
4 is a cross-sectional view of an embodiment taken along line IV-IV in FIG. 3;
5 is a partial cross-sectional view showing an embodiment when swinging against the airflow.
6 is a front view of an embodiment of a racquet frame in which the racquet frame is shown as a tennis racquet frame.

2 and 3, the embodiment of the racket frame according to the present invention includes a handle 3 and a ring-shaped frame body 4 connected to the handle 3, which is configured to be a badminton racket frame do. The ring-shaped frame body 4 has an inner circumferential surface 41 and an outer circumferential surface 42 surrounding the inner circumferential surface 41. The inner circumferential surface 41 and the outer circumferential surface 42 are arranged for penetrating extension of the string. It should be noted that although the present invention is illustrated as a badminton racket frame, the racket frame may be formed for other sports in other embodiments, such as the tennis racket frame shown in FIG.

The ring-shaped frame body 4 further has two opposed connecting surfaces 43 interconnecting the inner circumferential surface 41 and the outer circumferential surface 42. Each of the connecting surfaces 43 has a crest portion 431 that protrudes outward and becomes ring-shaped and wavy-shaped (i.e., the crest portion 431 of the connecting surface 43 protrudes from each other).

3 and 4, each of the connecting surfaces 43 of the ring-shaped frame body 4 has an inner surface 432 connected to the inner circumferential surface 41 and an outer surface 432 connected to the outer circumferential surface 42, (433). In each connecting surface 43, the crest portion 431 is formed as a boundary between the inner surface portion 432 and the outer surface portion 433. The inner surface 432 of each connecting surface 43 has a plurality of spaced inner depressed areas 434 and the outer surface 433 of each of the connecting surfaces 43 has a plurality of spaced outer depressed areas 434, (435). In each connection surface 43, the outer depressed area 435 is staggered with respect to the inner depressed area 434.

By virtue of the staggered arrangement of the outer pressing area 435 and the inner pressing area 434, each connecting surface 43 is formed in a wavy-shape, which improves the rigidity of the frame body 4, Thereby improving the structural strength.

5, by the structure of the connecting surface 43, when the racket frame swings in the direction B, the area on the windward side of the connecting surface 43, which is the subject of wind resistance, will be reduced. As a result, the swing speed by the racket frame can be increased. In the experiments performed by the applicant, the design of this embodiment reduces 30-40% of the wind resistance compared to the conventional racket 11 as shown in Fig.

While this invention has been described in connection with what is considered to be an exemplary embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but that all such modifications and equivalent arrangements, Should be understood.

Claims

As a racket frame,
A handle 3; And
And a ring-shaped frame body (4) connected to said handle (3), said ring-shaped frame body (4)
The inner circumferential surface 41,
An outer circumferential surface 42 surrounding the inner circumferential surface 41, the inner circumferential surface 41 and the outer circumferential surface 42 being arranged for extending the line through these circumferential surfaces; and
Two opposing connecting surfaces 43 interconnecting the inner circumferential surface 41 and the outer circumferential surface 42. Each of the connecting surfaces 43 protrudes outward and forms a ring- Having a crest portion (431).

The connector according to claim 1, wherein each connecting surface (43) of the ring-shaped frame body (4) has an inner surface portion (432) connected to the inner circumferential surface (41) Wherein the crest portion (431) is formed as a boundary between the inner surface portion (432) and the outer surface portion (433).

3. The method of claim 2 wherein the inner surface 432 of each of the connection surfaces 43 has a plurality of spaced inner depressed areas 434 and the outer surface 433 of each of the connection surfaces 43 has a & Has a plurality of spaced apart external pressurization areas (435) staggered relative to the inner presser area (434).