Toy yo-yo with selective enhanced rotation

Abstract

A yo-yo includes a toy body formed by a pair of housings connected by a rotatable connecting shaft. The toy body includes a detecting unit that automatically detects the rotation of the toy body and a motor that rotates the connecting shaft on the basis of the detection result of the detecting unit. The detecting unit detects the direction of rotation of the toy body and actuates the motor to rotatingly drive the connecting shaft in the same direction as the direction of rotation of the toy body.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates generally to a yo-yo, and more particularly to a yo-yo configured to sustain selective rotation with a controllable motor system. [0003] 2. Description of Related Art [0004] Generally, a traditional yo-yo includes a toy body that is formed by connecting a pair of discoid rotating bodies (housings) with a shaft body. A string is wound around the shaft body, so that when the toy body is lowered, the toy body rotates as the wound string is unwound, and when the toy body rises, the string is rewound around the shaft body due to the rotational force of the toy body. Thus, the yo-yo is an instrument of play that can repeatedly move up and down. [0005] However, the rotation of the toy body reaches a maximum speed at the lowermost end, and sometimes if the rotational force becomes weak, the string cannot be rewound around the shaft body and the yo-yo cannot be made to rise and return to the use...

AI Technical Summary

Benefits of technology

[0008] It is an object of the present invention to provide an improved electromechanical yo-yo that solves the above-described problem by forcibly causing a connecting shaft to rotate in the same direction as the direction of rotation of the toy body and which can easily be manipulated by youngsters and beginners.

[0011] According to the invention, when the toy body rotates, the detecting unit detects the rotation and direction of rotation of the toy body, and the motor automatically rotates on the basis of the detection result so that the rotation of the toy body is sustained. Thus, the rotational force of the toy body is forcibly sustained and is not damped, whereby the invention can provide a yo-yo that can be enjoyed by youngsters and beginners.

Problems solved by technology

However, the rotation of the toy body reaches a maximum speed at the lowermost end, and sometimes if the rotational force becomes weak, the string cannot be rewound around the shaft body and the yo-yo cannot be made to rise and return to the user when the toy body is left as it is, so that youngsters and beginners who cannot successfully control the timing at which to make the yo-yo rise to rewind the string become unable to continuously play with the yo-yo because the rotation becomes too slow.

Although the aforementioned yo-yo can increase the rotational force and somewhat prolong the time period of rotation in comparison to a conventional yo-yo, the rotational force still ends up decreasing and the yo-yo can fail to arrive at a fundamental solution to the problem that conventional yo-yos have.

Thus there remains a problem, particularly with young children and inexperienced users that has not been adequately addressed in the prior art.

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