JPS6245751Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a running toy.

Traditionally, running toys that use a spring as their driving force have
There were those that wound the mainspring directly by hand, and those that moved the wheel backwards to wind the mainspring.
However, winding the mainspring directly took time and effort, and moving the wheels backwards required a complex combination of many gears.

The purpose of this invention is to eliminate the need for complex combinations of many gears, simplify the structure, wind up the spring by simply moving the wheels slightly backwards, and create a running toy that can be run using coil springs other than springs. Our goal is to provide the following.

An embodiment of the present invention will be explained in detail based on the drawings. In Fig. 1, circular wheels 1 made of rubber or the like are fixed to each other by a shaft 2, and a pinion is integrally attached to the center of the shaft 2. 3 is attached and is supported by support plates 10, 10 serving as supports to perform rotational movement. The idlers 4, which have a larger diameter than the wheel 1, are fixed to each other by a shaft 5, and a pinion 6 having a different number of teeth than the pinion 3 is integrally attached to the center of the idler 4, and is rotatably supported by support plates 10, 10. It is movably provided so as to be in constant sliding contact with the upper part of the wheel 1, and when either the wheel 1 or the idler 4 rotates, the other also rotates in the opposite direction.

The support plate 10 is provided movably about a shaft 15 with respect to the main body 13, and a wheel 1 is attached to the end of the support plate 10.
A biasing device consisting of a tension spring 14 is provided which biases downwardly against 3.

Further, a half-moon gear 7 integrally having double rows of teeth consisting of external teeth 8 and internal teeth 9 that mesh with pinions 3 and 6, respectively, is pivotally attached to the main body 13 by a shaft 11 so as to be able to freely move in an arc. The internal tooth 9 is equipped with a biasing device consisting of a coil spring 16 biasing in one direction of movement, biased to rotate clockwise in FIG. 2, and normally provided with a relief 12 at one end.
and the pinion 6 mesh with each other, the external teeth 8 and the pinion 3 of the wheel 1 do not mesh with each other, and when the main body 13 is pushed downward, the tension spring 14 is pulled, so that the external teeth 8 and the pinion 3 mesh with each other. ing.

That is, as shown in FIGS. 2 and 3, the wheel 1 and the idler 4, which always slide in contact with each other, are rotatably attached to one end of Y-shaped support plates 10 and 10, each of which has two separate ends. The support plate 10,
10 is pivoted to the main body side part 13a by a shaft 15 near the other end from the center and is movable with respect to the main body 13, and the other end is locked inside the main body 13 by a tension spring 14. By pulling the support plates 10, 10 against the main body 13, the pinion 6 of the idler 4 is meshed with the half-moon gear.

To explain the operation of the embodiment of the present invention, first, as shown in FIG. 2 and FIG.
3 is pressed down (in the P direction in the drawing) and moved slightly backward (in the F direction in the drawing), the wheel 1 rotates clockwise, and the pinion 3 similarly rotates in the same direction. . Then, in order to press down the main body 13, the half-moon gear 7, which is pivoted on the main body 13, also descends, the external teeth 8 of the half-moon gear 7 mesh with the pinion 3, and the internal teeth 9 and the pinion 6 do not mesh. As the pinion 3 rotates, the half-moon gear 7 moves in an arc counterclockwise direction by the external teeth 8, and winds up the coil spring 16. At this time, the pinion 6 of the idler 4 idles in the radial direction.

Then, as shown in FIGS. 2 and 5, by releasing the hand, the main body 13 is pulled against the wheel 1 and returned by the force of the tension spring 14 (direction P' in the drawings), and the support plate 10 , 10 move clockwise relative to the main body 13 using the shaft 15 as a fulcrum, the internal teeth 9 of the half-moon gear 7 mesh with the pinion 6 of the idler 4, the pinion 3 of the wheel 1 and the external teeth 8 are separated, and the coil spring 16 The half-moon gear 7 moves clockwise in an arc shape due to the force, and the pinion 6 accordingly rotates clockwise and when it reaches the relief part 12 provided at one end of the internal teeth 9, it is rotated by inertia. The idler 4 also rotates clockwise, and the wheels 1 provided in sliding contact with the idler 4 rotate counterclockwise in conjunction with the idler 4, thereby causing the vehicle body 13 to travel forward (direction F' in the drawing).

Note that a spiral spring may be used instead of the coil spring 16.

According to the present invention, it is a traveling toy with only wheels, pinyons, and half-moon gears, and by simply holding the main body from above and pulling it backwards, the spring is wound through the wheels, pinyons, and half-moon gears, and when the main body is released, the spring is wound. The main body is pushed upward by the half-moon gear and the support, the half-moon gear meshes with the pinion of the idler, and the force of the spring moves the half-moon gear in an arc shape.
Since the wheels are rotated by the rotation of the idler, there is no need to manually wind the mainspring or assemble many gears in a complicated manner, as in the past.
Moreover, since the movement of the half-moon gear is slight, a coil spring can be used, and the structure is simple.

In addition, by providing a relief part at the end of the half-moon gear, the idler pinion, which rotates due to the force of the coil spring or spring, rotates further due to inertia at the relief part, allowing running without the need for power from batteries or other sources. It can be carried out.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of an embodiment of the present invention;
Fig. 2 is a front sectional side view of the main parts in the embodiment of the present invention, Fig. 3 is a perspective view of the main parts in the embodiment of the invention, and Fig. 4 is the main parts of the embodiment of the invention. FIG. 5 is a side view showing the rotational state of each power transmission part at the beginning when the vehicle is in operation. FIG. 1...Wheel, 2...Axle, 3...Pinyon, 4...
...Idler, 5...Shaft, 6...Pinyon, 7...
...Half-moon gear, 8...Internal teeth, 9...External teeth, 10...
Support plate, 11... shaft, 12... relief part, 13...
Main body, 14... tension spring, 15... shaft.

Claims (1)

[Scope of utility model registration request] A support is provided to be movable with respect to the main body, a pinion is integrally attached to the shaft of a wheel rotatably attached to the support, and the pinion is attached to the support and slides onto the upper part of the wheel. Another pinyon is integrally attached to the shaft of a rotatable idler, and a half-moon gear is provided on the main body that integrally has double rows of teeth that perform circular motion and mesh with the pinion, and the half-moon gear has one direction of the circular motion. a biasing device configured to bias the wheel downwardly relative to the main body; and a biasing device configured to bias the wheel downwardly relative to the main body; A running toy characterized in that the other of the double rows of teeth and the other of the pinyon are spaced apart from each other.