JPH0421510B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ball that belongs to a toy and is self-propelled back and forth and left and right by a built-in motor.

[Conventional technology and its problems]

There are many types of toys, and toy cars have been devised that use training wheels to perform so-called miracle driving such as staggered driving and rotation. However, spherical toys can only be rolled or thrown against walls; none of them can propel themselves.

The present invention takes the above points into consideration and aims to provide a self-propelled ball.

[Means for solving problems]

In order to achieve this object, in the present invention, a rotating frame is rotatably mounted on the central axis of the hollow sphere, and a rotating body whose axis is perpendicular to the central axis is mounted at the center of the rotating frame. The rotating body is rotatably provided, has a built-in motor, and the motor allows the rotating body to rotate with respect to a rotating frame, and the rotating shaft of the rotating body is eccentric.

[Effect]

With this configuration, when the rotating body rotates within the frame,
Since the rotating body rotates with respect to the frame and its axis is eccentric, the center of gravity of the sphere changes as the rotating body rotates. Furthermore, since the frame also rotates with respect to the ball, the rotating body also rotates in the circumferential direction of the center axis of the ball, causing the center of gravity of the ball to swing in that direction as well. Therefore, the center of gravity of the ball is displaced left and right and front and back, and the ball rolls back and forth and left and right so that its center of gravity is at the lower level.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

〔Example〕

As shown in Figure 1, a hollow sphere 1 that can be divided into two
A rectangular rotating frame 2 is provided inside, and the shaft parts 3, 3 at both ends of the rotating frame 2 are rotatably fitted into bearings 4, 4 on the central axis of the sphere 1, so that the rotating frame 2 is placed on the central axis of the sphere 1. Mount rotatably. A through hole 5 is formed in one of the bearings 4 of the sphere 1, and a switch 6 is made to face the through hole 5.

A rotating body 7 is provided at the center of the frame 2, and a motor and a dry battery are built into the rotating body 7. The illustrated rotating body 7 includes a motor with a speed reducer in a portion a, and a dry cell battery in a portion b. The casing of the motor is fixed to a rotating body 7, and when the motor is driven, the rotating shaft 8 is fixed, so that the rotating body 7 rotates around the shaft 8.

The rotating shaft 8 is offset from the central axis of the rotating body 7,
As shown in FIG.
When the motor starts to drive, the spring 10 prevents the rotation of the shaft 8 and the rotating body 7 rotates. Note that when the sphere 1 hits a wall or the like and a reaction force is applied to the shaft 8, the spring 10 contracts and rotates the shaft 8 to cushion the shaft 8 and prevent damage to this bearing portion.

A contact piece 11 is provided around the rotating shaft 8 of the rotating body 7, and this piece 11 is brought into contact with a contact piece 12 fixed to the frame 2. The switch 6 is connected to the other of the contact piece 12 and the contact piece 9 through a lead wire 13, and the rotating shaft 8 and the contact piece 11 are interposed in a circuit from the dry battery to the motor. Therefore, when the switch 6 is turned on, the contact pieces 9 and 11, the contact piece 12, and the rotating shaft 8
The dry battery and the motor are connected through the , and the motor is driven.

A light bulb 14 is attached to the rotating body 7, and this light bulb 14
can be blinked by various means. For this reason, the sphere 1 is formed of a translucent material.

The embodiment is constructed as described above, and when the switch 6 is turned on and the rotating body 7 rotates in the direction of the arrow in FIG. 1, the center of gravity of the sphere 1 moves to the front upper part. As shown in a, sphere 1
rotates and travels so that its center of gravity is at the lower center. During this running, if the running surface of the ball 1 is deflected laterally due to a convex portion, the center of gravity will swing laterally, and the ball 1 will rotate to compensate for the swing. In other words, it moves sideways while moving forward.

Further, as shown in Fig. 5b, when it hits a wall A, etc., the center of gravity shifts due to the rotation of the rotating body 7, and this displacement causes the sphere 1 to come to a standstill until it can move, and then start moving again. Start.

In this way, the sphere 1 travels while rotating and changes its traveling direction based on external forces such as walls. In other words, it runs miraculously.

〔Effect of the invention〕

Since this invention is configured as described above, the sphere rotates and travels back and forth and left and right, making it possible to create a toy that has never been seen before, and the structure is simple, so it has the advantage of being inexpensive to manufacture. be.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of an embodiment of a self-propelled curve ball of the present invention, FIG. 2 is a partially cutaway front view of the embodiment, and FIG. 3 is a cutaway right side view of FIG. 4 is a cutaway right side view of the main part of FIG. 3, and FIGS. 5a and 5b are explanatory diagrams of the running action of the sphere, respectively. 1... Sphere, 2... Rotating frame, 7... Rotating body, 8
……Axis of rotation.

Claims (1)

[Claims] 1. A rotary frame 2 is rotatably mounted on the central axis of the hollow sphere 1, and a rotary body 7 is rotatably provided in the center of the rotary frame 2 with the axis perpendicular to the central axis. A self-propelled curve ball having a built-in motor, which allows the rotating body 7 to rotate relative to the rotating frame 2, and the rotating shaft of the rotating body 7 being eccentric.