JPH0655664U - Racket with shock absorbing air cushion - Google Patents

Abstract

(57) [Summary] [Objective] The purpose of the present invention is to provide a shock absorbing air cushion that reduces the vibration of the gut 30 and eliminates the weaknesses of the conventional racket such as the problem of the tennis elbow and the problem of moving the gut 30. To provide a racket. According to the present invention, a plurality of air cushions 23 are provided on the inside of a racket frame 10 so as to exert a shock absorbing effect on the gut 30 after the expansion, and the air cushions are provided between the forked portions 11 of the racket handle. A racket provided with an impact absorbing air cushion, characterized in that the expansion is controlled by an expansion and exhaust means.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a racket having an impact absorbing air cushion. This air cushion is fixed to the ends of the guts of the racket and absorbs the impact of hitting the ball to protect the user from injury and other injuries.

[0002]

[Prior art]

 There is a clear difference between the structure of the conventional racket and the racket of the present invention. A conventional racket consists of an oval frame, a forked handle below the frame and a handle with a grip. In order to hit the ball hard, the gut of the tennis racket requires a considerable amount of tension, which puts a strain on the user's elbow.

The new model racket of recent years is designed to generate a strong repulsive force and is excellent in swing performance and repulsive force performance, but results in a considerable burden on the arm of the racket user. ing. It is the cause of so-called tennis elbows and muscle aches. As a preventive measure, shock absorbing means such as a rubber belt for shock absorption and a highly elastic grip cover is provided. The rubber belt for shock absorption is attached to the lower part of the racket surface, and it is structured so that it can be attached to several guts on the racket surface by the two hooks of the belt body. Absorb a portion of it before it reaches the user's arm.

[0004]

[Problems to be solved by the device]

 However, it is difficult to say that the rubber belt has sufficient impact absorbing ability, and if the rubber belt itself hits the ball, the direction of the ball will be lost. It is said that a flexible racket handle has a function of absorbing a shock when a ball is played. However, the user does not always hit the ball at the sweet spot of the racket, and the force (torque) generated when the ball is hit at a position off the center of the racket is still a burden on the arm. Therefore, it does not always lead to removal of the cause of tennis elbow. In addition, the racket's gut tends to spread toward the outside of the racket when hit by the ball. The user had to fix each gut with his finger, which was inconvenient.

Therefore, the inventor of the present invention, in view of the shortage of the shock absorbing performance of the conventional racket and the shortage of the shock absorbing performance of the rubber belt and the reinforced racket handle, has an impact absorbing air cushion for the racket. By wearing it, we tried to overcome these weak points. Therefore, an object of the present invention is to install a shock absorbing air cushion on a racket, and sandwich both ends of the gut with the shock absorbing air cushion that is fully inflated to prevent the user's arm from being impacted by the gut. To protect. A further object of the present invention is to provide a rack in which the gut can be easily replaced by the expansion and exhaust means. Further, an object of the present invention is to prevent the movement of the gut, which tends to occur when the ball is played, by an air cushion for accommodating the base end portion of the gut, thereby saving the trouble of repairing the gut.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention according to claim 1 discloses that "a plurality of air cushions are provided on the inner side of the racket frame, having a connecting tube penetrating the racket frame and being adjacent to the plate. Between the two forks of the racket handle, and the air cushions that have a shock absorbing effect after expansion, and the through holes that are provided between the air cushions for inserting the gut and fixing to the frame. A racket provided with an air cushion for shock absorption, which is provided outside a lower end portion of a racket frame and has an expansion and exhaust means for controlling the expansion ”.

Further, the present invention according to claim 2 is that "the inflating means is an air capsule to which an inflating tube is connected, and the inflating tube penetrates a lower end portion of a racket frame. The air capsule is connected to one of the air cushions, and the air capsule comprises an air capsule having a first check valve at the upper end and a second check valve at the lower end for allowing the injection of air into the air capsule. The exhaust means has an exhaust tube, a plug and a block part, and the exhaust tube penetrates a lower end part of the racket frame and is connected to one of the plurality of air cushions. The lower end projects from the exhaust tube, and when the air capsule is pressed to inject air through the expansion tube into the air cushion, The block provided on the upper part of the lug is configured to close the inlet of the exhaust tube, and the block of the block closes the inlet of the exhaust tube to prevent leakage, and the pressure of the air capsule is released. As a result, a cycle of expansion action in which air is injected into the air capsule through the second check valve is generated, and air is discharged by further pushing up the lower end portion of the plug. The racket provided with the shock absorbing air cushion according to claim 1.

Further, the present invention according to claim 3 is characterized in that "the shock absorbing air cushion has a mask for covering the air capsule in order to protect the air capsule from a shock due to a collision. It is a racket equipped with.

[0009]

[Action]

 With the structure according to claim 1, the gut is inserted into the through hole provided between the plurality of air cushions provided inside the racket frame, and the expansion means provided between the two forks of the racket handle. When the air cushion is expanded by the above, both ends of the gut are sandwiched by the air cushion, and the shock absorbing effect of the air cushion is exerted. Further, the base end of the gut is clamped by an air cushion and its movement by hitting a ball is restricted. Furthermore, if the air in the air cushion is exhausted by the exhaust means provided between the two forks of the racket handle, the gut can be replaced.

With the structure according to the second aspect, when the air capsule as an expansion means connected to one of the air cushions is pressed, the air cushion is formed by the first check valve and the second check valve. Air is supplied to. Further, in the exhaust tube and the plug as the exhaust means connected to one of the air cushions, the block portion of the plug closes the inlet of the exhaust tube to constantly prevent air leakage. If the lower end of the plug protruding from the exhaust tube is operated, the blockage of the exhaust tube inlet is released by the block, and the air in the air cushion is discharged to weaken the gut holding. .

With the configuration according to the third aspect, since the air capsule is covered with the mask, the air capsule is protected from collision with a ball or the like.

[0012]

【Example】

 As shown in FIG. 1 to FIG. 3 and FIG. 7, a plurality of flexible air cushions 20 mounted on the inside of the racket frame 10 are arranged adjacent to each other on a plate 24. Each of the air cushions 20 has a connecting tube 22 penetrating therethrough, and air is taken into each of the inside through the connecting tube. Between each adjacent air cushion 20 on the plate 24, a through hole 21 for passing the gut (thread) 30 and attaching it to the frame 10 is provided.

As shown in FIGS. 1, 5 and 6, expansion and exhaust means are provided between the forked portions 11 of the racket handle. The expansion means includes an air capsule 40, an expansion tube 41, a first check valve 42 and a second check valve 421. The expansion tube 41 penetrates the lower end (base end) of the racket frame 10 and serves as a supply port for supplying external air from the air capsule 40 to the air cushion 20.

The first check valve 42 provided at the lower end of the expansion tube 41 is opened to send air to the air cushion 20, and is closed to prevent air from leaking from the air cushion 20. A second check valve 421 is provided at the lower end of the air capsule 40, and acts so as to take in air from the outside of the air capsule 40 and prevent it from leaking. An air mask 50 is provided at the lower end of the racket frame 10 to cover the expansion tube 41, the air capsule 40, the second check valve 421, and the exhaust means, and the air capsule 40 and the like from the damage caused by the collision of a ball or the like. Protect.

As shown in FIG. 8, the exhaust unit has an exhaust tube 43, a plug 44, and a block portion 45. The exhaust tube 43 penetrates the lower end of the racket frame 10 and is connected to the air cushion 20. The plug 44 is inserted into the exhaust tube 43, and the lower end of the plug 44 projects from the exhaust tube 43. The block portion 45 is fixed to the upper end portion of the plug 44 and plays a role of blocking the inlet of the exhaust tube 43.

In the racket according to the present invention configured as described above, air is injected into one of the air cushions 20 through the expansion tube 41 by pressing the air capsule 40 after removing the air mask 50, Air can be easily sent to the other air cushions 20 that are lined up by the connection tube 22. When one inflating operation is completed, the air capsule 40 is gradually inflated again, air flows from the second check valve 421 to the air capsule 40, and the air capsule 40 enters another inflation cycle. Regarding the exhaust means, the block part 45 is fixed to the upper end of the plug 44 and closes the inlet of the exhaust tube 43 to prevent air leakage. When the plug 44 is pushed up, the block 45 is pushed up and the internal air can be discharged.

As shown in FIGS. 3 and 4, since the wall surface of the air cushion on the side closer to the gut is thicker than the other side surfaces, the sufficiently expanded air cushions 20 and 23 firmly sandwich the gut 30. Due to this action, the present device softens the impact at the time of hitting the ball, and further prevents the gut 30 from moving. After exhausting from the air cushion 20, the gut 30 can be easily replaced.

Although the racket of the present invention has been described through the above preferred embodiment, it is easy for an engineer in the relevant industry to change various ideas of the present invention. Modifications are also included in the scope of the claims of the present application.

[0019]

[Effect of device]

 INDUSTRIAL APPLICABILITY The present invention can alleviate the weaknesses associated with the conventional racket such as the problem of tennis elbow and the problem of gut movement, and further eliminate the weaknesses. Particularly, in the racket provided with the shock absorbing air cushion according to claim 1, it is possible to soften the impact at the time of hitting the ball, protect the user from obstacles such as tennis elbow, and move the gut. It is possible to prevent the trouble and reduce the trouble of repairing the gut. Further, there is an excellent effect that it is possible to provide a racket in which the gut can be easily replaced by the expansion and exhaust means. In the racket provided with the shock absorbing air cushion according to claim 2, in addition to the effect according to claim 1, an expansion means including an air capsule to which an expansion tube is connected, an exhaust tube, a plug and a block. With a simple structure consisting of an exhaust means having a section, a cycle of expansion action for injecting air into the air capsule is generated, and further, by pushing up the lower end portion of the plug, the air can be easily discharged. . In the racket provided with the shock absorbing air cushion according to claim 3, in addition to the effect according to claim 1, the mask covering the air capsule can protect the air capsule from damage due to a collision such as a ball. .

[Brief description of drawings]

FIG. 1 is a perspective view of a racket having an impact absorbing air cushion of the present invention.

FIG. 2 is a partially exploded perspective view showing an air cushion of the racket shown in FIG.

FIG. 3 is a partial cross-sectional view showing the air cushion of FIG.

FIG. 4 is a partial cross-sectional view showing a state after expansion of the air cushion of FIG.

FIG. 5 is a partial cross-sectional view showing an expansion means and an exhaust means of the present invention.

FIG. 6 is a partially enlarged sectional view showing an expansion means of the present invention.

FIG. 7 is a partial plan view showing an air cushion.

FIG. 8 is an enlarged sectional view showing an exhaust means of the present invention.

[Explanation of symbols]

 10 ... Frame 11 ... Bifurcation 20 ... Air cushion 22 ... Connection tube 23 ... Air cushion 24 ... Plate 30 ... Gut 40 ... Air capsule 41 ... Expansion Tube 42 ... First check valve 421 ... Second check valve 43 ... Exhaust tube 44 ... Plug 45 ... Block part 50 ... Air mask

Claims (3)

[Scope of utility model registration request] 1. A plurality of air cushions provided inside a racket frame, having a connecting tube penetrating the racket frame, arranged adjacent to each other on a plate, and exhibiting a shock absorbing effect after expansion. An air cushion, a through hole provided between the air cushions for inserting the gut and fixing it to the frame, and a fork between the two forks of the racket handle and outside the lower end of the racket frame to control the expansion. A racket provided with an air cushion for shock absorption, comprising an expansion and exhaust means. 2. The inflating means is an air capsule to which an inflating tube is connected, the inflating tube penetrating a lower end portion of a racket frame and connected to one of the plurality of air cushions, and The air capsule is composed of an air capsule having a first check valve at the upper end and a second check valve at the lower end for allowing the injection of air into the air capsule, wherein the exhaust means is an exhaust tube, a plug and A block portion, the exhaust tube penetrating the lower end of the racket frame and connected to one of the plurality of air cushions, the lower end of the plug protruding from the exhaust tube, the air capsule When air is injected into the air cushion through the expansion tube by pressing, the block portion provided on the upper part of the plug is It is configured to close the inlet of the exhaust tube, the block portion closes the inlet of the exhaust tube to prevent leakage, and when the pressure of the air capsule is released, air is passed through the second check valve. 2. The shock absorbing structure according to claim 1, wherein a cycle of expansion action is injected into the air capsule, and air is discharged by further pushing up a lower end portion of the plug. Racket with air cushion. 3. A racket provided with an impact absorbing air cushion according to claim 2, further comprising a mask covering the air capsule to protect the air capsule from impact due to a collision.