JPH08102U - Ball container for ball game - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the ball is to prolong the life of the ball by preventing the natural decompression during storage of a ball for ball games of a type that cannot inject air, such as a hard tennis ball. [Constitution] The present invention is characterized in that after the ball is put in, the inner cavity of the container is pressurized so that the high pressure state can be maintained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 Balls for ball games of a type that do not have an air injection port, especially hard tennis balls, will be available for a longer period of time.

[0002]

[Prior art]

 For example, hard tennis balls are generally sold in a pressure-sealed state on the market, so the internal pressure of the ball does not decrease until the cap is opened, but after opening, air gradually escapes during use and storage. . Until now, there has been no effective means.

[0003]

[Problems to be solved by the device]

 Since there is no device for resealing the ball after opening it and keeping the pressure applied, the ball loses air during storage and becomes useless.

[0004]

[Means for Solving the Problems]

 At least natural pressure reduction during storage can be prevented by sealing the ball after opening in a container that can maintain a pressurized state.

[0005]

【Example】

 FIG. 1 shows the outline of the present invention. As shown in FIG. 1, this device has a ball inlet (1), an air inlet (2), a pressure monitor (3), a safety valve (4), and an exhaust plug (5). The ball insertion port is equipped with a material with a packing effect so that it can be tightly closed. The tightening means may be a spiral screw (Fig. 2) or a buckle type (Fig. 3).

A structure of a pressure cooker or a lid of an autoclave may be adopted as shown in FIG. A cylindrical container is generally considered to be good in order to withstand pressure, but this is not the only case depending on the material.

In order to provide general versatility to the air injection port, it is preferable to use a bug rubber plug for a bicycle tube. For further simplification, a pump may be integrated as shown in FIG.

A pressure monitor should be provided to confirm the state of internal pressure. The structure shown in FIG. 6 has high airtightness and is simple. As shown in FIG. 7, air and a non-volatile colored liquid may be put in a glass tube having a blind end so that it can be seen from the outside.

It is better to attach a safety valve to prevent rupture due to excessive pressure. This has the structure shown in FIG.

Also, it is better to have a small exhaust port for safe exhaust just before opening the lid.

[0011]

[Effect of device]

 It is economical because the ball can be used for a longer period of time. It also reduces wasted balls and protects material resources.

[Brief description of drawings]

FIG. 1 is an overall view of the device of the present invention.

FIG. 2 is a spiral-type stopper.

FIG. 3 is a buckle type stopper.

[Figure 4] Pressure cooker method.

FIG. 5 is a view for explaining claim 3 of the present invention and is a conceptual view of a device integrated with a pump.

FIG. 6 is an example of a structure of a simple pressure monitor.

FIG. 7 is an explanatory diagram of a pressure monitor using a glass tube.

FIG. 8 is a structure of a safety valve.

[Explanation of symbols]

 1 Ball Slot 2 Bug Rubber Plug 3 Pressure Gauge 4 Safety Valve 5 Exhaust Valve 6 Buckle 7 Pump 8 Scale 9 Spring 10 Bellows 11 Scale 12 Clear Blind Pipe 13 Spring

Claims (6)

[Scope of utility model registration request] 1. A ball-playing ball of a type that cannot inject air, such as a hard tennis ball, is put in the lid, and after that,
A device that allows pressurized air to be maintained by injecting air into the device's internal cavity through another port. 2. The device according to claim 1, wherein a portion of the device for injecting air can be made into a generally used inflator by using a bug rubber plug of a bicycle tube. 3. A device in which a pump is incorporated in the device of claim 1. 4. An apparatus in which a pressure gauge is installed in the apparatus of claim 1. 5. A device according to claim 1, further comprising a safety valve for releasing air when the pressure exceeds a certain level. 6. A device provided with a vent for venting air immediately before removing a ball.