Water submergence toy

Abstract

A water submergence toy is not performed using a screw. It is done by only changing the buoyancy by means of changing the volume. Because of this, the control and surfacing responsiveness becomes very poor. The water submergence toy according to the present invention compresses the air inside a piston when the piston is pushed towards the inside of a cylinder to reduce the volume. This makes the buoyancy smaller. Conversely, when the piston is moved in a direction away from the cylinder, the volume of the air inside the piston becomes larger and the buoyancy increases. In addition, because this type of buoyancy adjustment can be performed manually as well, those who play with a water submergence toy can adjust the buoyancy whenever it is necessary. Because of this, the buoyancy of the water submergence toy can always be maintained in a state adjusted for optimum buoyancy.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of Invention [0002] The present invention is related to a water submergence toy that uses radio control for remote control operation. [0003] 2. Description of the Related Art [0004] This type of conventional water submergence toy is internally provided with a screw that is driven by a motor and the rotation of this screw moves, submerges, and surfaces the toy. Furthermore, when the electrical power of internal batteries is exhausted and the water submergence toy cannot be controlled, the buoyancy is adjusted to raise the water submergence toy to the surface of the water. [0005] However, if the buoyancy is increased too much, a great deal of electrical power will be consumed while the toy is submerging. Because of this, the buoyancy must be adjusted to the minimum required level. In contrast, if the buoyancy is set as small as possible, the buoyancy will become too small due to errors. It result in the danger of the water submergence toy no...

AI Technical Summary

Benefits of technology

[0008] The water submergence toy according to the present invention compresses the air inside a piston when the piston is pushed towards the inside of a cylinder to reduce the volume. This makes the buoyancy smaller. Conversely, when the piston is moved in a direction away from the cylinder, the volume of the air inside the piston becomes larger and the buoyancy increases. In addition, because this type of buoyancy adjustment can be performed manually as well, those who play with a water submergence toy can adjust the buoyancy whenever it is necessary. Because of this, the buoyancy of the water submergence toy can always be maintained in a state adjusted for optimum buoyancy.

[0010] In another water submergence toy according to the present invention, the volume of the cylinder body does not change but air inside the cylinder body is supplied to a separate balloon and the volume of this balloon changed to adjust the buoyancy. It is possible to freely set the installation position of the balloon and significantly increase the freedom of design in a composition that expands and contracts a balloon and not the cylinder body in this manner.

[0012] If the size of the balloon is suitably set, the buoyancy will be suitably maintained even if the size of the balloon is not changed thereafter and the size of the balloon during submerging and surfacing can be aggressively changed. For example, if the above-mentioned balloon is installed at a position further front than the center of gravity of the water submergence toy and the balloon becomes larger while surfacing, the buoyancy will increase and the nose of the water submergence toy will be facing upward. In contrast, if the balloon becomes smaller while surfacing, the buoyancy will decrease and the water submergence toy will become easier to submerge along with the nose of the water submergence toy facing downward and the movement of the water submergence toy becoming diversified.

[0013] As made clear from the description above, the present invention can adjust the buoyancy to an optimum state for each water submergence toy.

Problems solved by technology

Furthermore, when the electrical power of internal batteries is exhausted and the water submergence toy cannot be controlled, the buoyancy is adjusted to raise the water submergence toy to the surface of the water.

However, if the buoyancy is increased too much, a great deal of electrical power will be consumed while the toy is submerging.

In contrast, if the buoyancy is set as small as possible, the buoyancy will become too small due to errors.

It result in the danger of the water submergence toy not rising up to the surface while the motive power is stopped.

Because of this, the control and surfacing responsiveness becomes very poor.

Further, in the toy described in the Kokai above, because the internal pressure drops when the volume is increased, if a hole that passes through the inside and outside of the sealed container is opened in order to allow the axis of rotation of the screw to pass through, water will be sucked into the sealed container from the gap between the hole and the axis of rotation thereby making it very difficult to install a screw.

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