JP2582225Y2 - Running toys - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling toy such as a train or an automobile, and more particularly to a traveling toy having an ultrasonic motor having a piezoelectric element attached thereto.

[0002]

2. Description of the Related Art Conventionally, traveling toys such as electric trains and automobiles have often been equipped with a battery, an electromagnetic motor or a flywheel.

[0003]

2. Description of the Prior Art In the above-mentioned running toy, which is equipped with a battery and an electromagnetic motor, the rotation of the electromagnetic motor involves considerable noise and vibration, requires a deceleration mechanism, and consumes a lot of energy. However, there is a problem that the battery life is shortened.

[0004]

SUMMARY OF THE INVENTION The present invention is to solve the problems of the conventional running toy equipped with a battery and an electromagnetic motor and to provide a running toy which is a new driving source. That is, specifically, an ultrasonic motor having a completely different driving principle is mounted in place of the electromagnetic motor to provide a running toy which is extremely quiet and has no vibration.

[0005]

According to the present invention, there is provided a structure in which a piezoelectric element is attached between nodes of a driving body, and a driver is integrated with the driving body in a downward direction from a surface of the driving body opposite to a surface to which the piezoelectric element is attached. And the driver is fixed by erecting the driver support 6 from the nodes on both sides of the driver. The driver is provided with a notch, and the notch is mounted on the slider. The traveling toy is provided with a means for preventing lateral displacement, which is placed or provided with a falling-off prevention member protruding from the bottom surface of the traveling toy and brought into contact with both side surfaces of the slider.

[0006]

The piezoelectric element which is a component of the ultrasonic motor has two
When a voltage having a frequency of 20 V and a frequency of several tens of kHz is applied, the piezoelectric element generates ultrasonic vibration and causes bending between the nodes 5 of the driving body 1 to which the piezoelectric element is attached. Due to the bending between the nodes 5 of the driver 1, the driver 3 protruding from the driver 1 performs an elliptical motion that rotates in only one direction, and obtains a thrust from the slider 4 that is in contact friction with the driver 3. As a result, the toy that has obtained the thrust from the slider 4 runs quietly on the slider 4. The input power to the ultrasonic motor may be such that a battery and a drive circuit are incorporated in the traveling toy, or the slider may be projected from the bottom surface of the traveling toy and input from the side of the slider 4.

[0007]

Embodiment 1 There are various types of ultrasonic motors. The ultrasonic motor used for the traveling toy according to the present invention is a bending mode ultrasonic wave in which a plate-shaped piezoelectric element is adhered to a prismatic metal elastic body. The drive force is generated by generating vibration. Next, the ultrasonic motor used in the present invention is shown in FIGS.
This will be described with reference to FIG. In FIGS. 1 and 2, the driving body 1 made of a prismatic metal elastic body has elasticity, and is limited to the driving body 1 made of a metal elastic body as long as it has at least a conductive surface. is not. The driving body 1 made of a prismatic metal elastic body, which is an embodiment of the traveling toy of the present invention, uses SUS304 or SUS303.
Next, the piezoelectric element 2 used in the present invention is made of a material such as lead zirconate titanate. The piezoelectric element 2 is in the form of a plate of an appropriate size, and electrodes are formed on both the front and back surfaces by means of baked silver or the like, and are subjected to a polarization process to make the dipole polarization uniform. One or more piezoelectric elements 2 are attached to one surface of the driving body 1 made of the metal elastic body at appropriate intervals. The sticking portion is a portion having equal intervals on both sides of a so-called node 5 when a driver 1 made of a metal elastic body is bent by applying a voltage to the piezoelectric element. The driver 3 is formed by integrally projecting two or more of the driver 1 made of a metal elastic body on the side opposite to the surface on which the piezoelectric element 2 is attached. The driver 3 obtains thrust from the slider 4 which comes into contact with the driver 3, and the vertebral force is provided by the following principle. In other words, the bending of the metal elastic body 1 due to the ultrasonic vibration of the piezoelectric element 2 due to the application of the voltage, and the elliptic motion of the tip of the driver 3 in only one direction in response to the bending, causes the thrust of the contact friction from the slider 4. It is. The slider 4 is equivalent to a rail used in a conventional traveling toy, and serves as a track of the traveling toy. In the traveling toy of the present invention, one slider 4 is sufficient, while the conventional traveling toy requires two rails in parallel. The material of the slider 4 is extremely important in relation to the combination with the driver 3. That is, the ultrasonic motor mounted on the traveling toy of the present invention is the driver 3
Since the thrust is obtained by the contact friction between the slider 4 and the slider 4, the slider 4 and the driver 3 are required to have a large friction coefficient and a high wear resistance. In the present invention, it has been confirmed that when the material of the driver 3 is SUS304 as the material of the slider 4, various synthetic resins are sufficient.
The traveling toy of the present invention is mounted on the slider 4 and travels. However, when the driving toy travels with the thrust from the slider 4 due to the elliptical motion, the traveling toy immediately falls off the slider 4 unless the traveling toy is provided with any means for preventing lateral displacement. Therefore, in the present invention, a notch is provided in the driver 3 as a means for preventing the falling off, and the notch is placed on the slider 4 or the stopper is protruded from the bottom surface of the traveling toy so that both sides of the sling 4 are provided. Or means of contact. In the traveling toy of the present invention, the piezoelectric element 2 attached to the driving body 1 constituting the ultrasonic motor is attached by alternately changing the polarization polarity.
The surface electrode of the piezoelectric element 2 is connected by the same conductive wire, 2～20V between the conductive wire and the drive member 1, the number 10KH _z
Is applied. The ultrasonic motor used in the traveling toy of the present invention has a plurality of driving body supports 6 erected from nodes 5 on both sides of the driving body 1, and the supporting bodies 6 are attached to members outside the driving body 1. Fix it. In the traveling toy of the present invention, the driving body 1 is fixed such that the driving element 3 is located downward. This arrangement requirement is to ensure sufficient contact friction between the driver 3 and the slider 4 by the weight of the traveling toy placed on the slider 4.

[0008]

The traveling toy of the present invention uses an ultrasonic motor as a driving source and obtains a thrust from the slider 4, so that there is an effect that the traveling toy does not sense any noise and vibration accompanying the traveling. Also, since the ultrasonic motor does not involve any rotation unlike the electromagnetic motor, no reduction mechanism is required. Further, the ultrasonic motor has an effect of giving a very novel image because its driving principle is completely different from that of the electromagnetic motor. A notch is provided in the driver, and the notch is placed on the slider, or a means for preventing lateral displacement is provided by projecting a stopper member from the bottom surface of the traveling toy and contacting both side surfaces of the slider. This has the effect that the driver can be prevented from falling off due to the notch. Further, since the driver is made of SUS304 or SUS303 and the material of the slider is made of synthetic resin as a combination in terms of the material of the driver and the slider, there is an effect of being able to withstand long-term use. In addition, the driver is disposed so as to face downward, and there is an effect that contact friction between the driver and the slider can be secured by the weight of the traveling toy placed on the slider.

[Brief description of the drawings]

FIG. 1 is a side view of the traveling toy of the present invention.

FIG. 2 is a bottom view of the traveling toy of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Driver 2 Piezoelectric element 3 Driver 4 Slider 5 Node 6 Driver support

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A63H 18/02 A63H 17/00 A63H 18/16 H02N 2/00

Claims (7)

(57) [Scope of request for utility model registration] 1. A structure in which a piezoelectric element is adhered between nodes of a driver, a structure in which a driver is integrally protruded downward from a surface opposite to a surface on which the piezoelectric element is adhered of the driver, and The drive body is fixed by erecting the drive body support from the node portions on both sides of the drive body, the drive element is provided with a notch, and the notch is mounted on a slider or a traveling toy. A running toy equipped with an ultrasonic motor, characterized in that a means for preventing lateral displacement is provided by projecting a falling-off preventing member from the bottom surface of the slider and making contact with both side surfaces of the slider. 2. A structure in which a piezoelectric element is adhered between nodes of a driver, a structure in which a driver is integrally protruded downward from a surface of the driver opposite to a surface to which the piezoelectric element is attached, and The driving body is fixed by setting the driving body support upright from the node portions on both sides of the driving body, and the driving element is SUS304 or SU as a combination of the driving element and the slider.
A traveling toy characterized by S303, wherein the material of the slider is a synthetic resin. 3. A structure in which a piezoelectric element is adhered between nodes of a driver, a structure in which a driver is integrally protruded downward from a surface opposite to a surface on which the piezoelectric element is adhered of the driver, and The driving body is fixed by erecting the driving body support from the node portions on both sides of the driving body. The driving element is disposed so as to be downward, and the weight of the traveling toy mounted on the slider is reduced. A running toy characterized by ensuring contact friction between a driver and a slider by means of the driving toy. 4. The traveling toy according to claim 1, wherein the driving element is SUS304 or SUS303 as a combination of the driving element and the slider, and the slider is made of synthetic resin. 5. The traveling apparatus according to claim 1, wherein the driving element is disposed so as to face downward, and contact friction between the driving element and the slider is secured by the weight of the traveling toy placed on the slider. toy. 6. A traveling device according to claim 2, wherein the driving element is disposed so as to be located downward, and contact friction between the driving element and the slider is secured by the weight of the traveling toy placed on the slider. toy. 7. A traveling apparatus according to claim 4, wherein the driving element is disposed so as to be located downward, and contact friction between the driving element and the slider is ensured by the weight of the traveling toy placed on the slider. toy.