JPS5813914Y2 - Wheel power device for toy cars - Google Patents

Description

[Detailed explanation of the invention] This invention is that when pushing a toy car to accumulate rotation on the vertical shaft, the intermediate gear takes over the side that increases the rotation ratio of the transmission gear, rotates the vertical shaft at high speed, and the toy car This relates to a vertical shaft power device for a toy automobile, in which an intermediate gear is automatically switched to a side that reduces the rotation ratio of a transmission gear when a hand is released from the gear, transmitting high-speed rotation of the vertical shaft to the wheels, and starting the toy automobile.

Conventionally, this type of vertical shaft power device has been proposed, but the operation of the intermediate switching gear is not smooth, is uncertain, and is inconvenient to operate.

This invention is an improvement on this point, and is an attempt to provide a vertically powered toy car in which the switching gear operates reliably and is highly immersive.

This invention will be explained below with reference to drawings as examples.
A support piece 5 bearing an axle 3 with driving wheels 2, 2 attached to both ends of the machine frame 1, and having a push-up spring 4 connected to the tip from below.
is rotatably supported on an axle 3, and a switching gear 10 is provided on one side with a pinion gear 9 that is always engaged with a spur gear 8 mounted on the axle 3 on a support shaft 7 provided at the tip of the support piece 5. The tip of the switching gear 10 is rotated upward or downward in the rotating direction of the axle 3, and the rotation angle is the same as that of the intermediate wall plate 1 of the machine frame 1.
It is regulated by a restriction hole 6 provided in a.

A vertical shaft 11 is supported on the upper side of the switching gear 10, and a vertical shaft 12 and a pinion gear 13 are attached to both ends thereof, and a pinion gear 14 that is freely supported between them is pressed against the pinion gear 13 by an expansion spring 15 that is also supported. are doing.

A support shaft 16 is rotatably supported on the lower side of the switching gear 10, and a pinion gear 17 and a spur gear 18 are provided on the shaft.

A pinion gear 2 rotatably supports a support shaft 19 between the support shaft 16 and the vertical shaft 11, and constantly meshes with the spur gear 18.
0 and a spur gear 21 that constantly meshes with the pinion gear 13 on the vertical shaft 11 are integrally attached to the support shaft 19.

A bearing sleeve 5a may be attached to the base of the branch 5 as shown in the figure, and the spring 4 allows the branch 5, pinion gear 9, and switching gear 10 to rotate downward about the axle 3 due to the action of gravity. It supports the movement of the gear 8, brings the gravitational force close to zero, and sharply follows the direction of rotation of the gear 8.

Since this invention is as described above, the machine frame 1 is attached to the rear of the car body 22, for example, and when the car body is moved forward and the drive wheels 2 are rotated as shown by the arrows in FIG. The switching gear 10 rotates in the rotation direction of the spur gear 8, the switching gear 10 meshes with the pinion gear 17, and the switching gear 10 rotates in the rotation direction of the spur gear 8.
After 6.19, the vertical shaft 11 is rotated at an increased speed, and the static shaft 12 is rotated at a high speed to accumulate rotation.

Next, when you release your hand from the vehicle body 22 in this state, the switching gear 10 rotates upward together with the pinion gear 9 due to the action of the spring 4.
It meshes with the pinion gear 14 on the vertical shaft 11.

Therefore, the high-speed rotation of the vertical shaft 11 rotates the axle 3 at high speed through the switching gear 10, pinion gear 9, and spur gear 8, that is, unlike the case where the static shaft 12 is accelerated, the rotation ratio is slightly related. .

Therefore, the vehicle body 22 immediately starts running at high speed when the user releases his/her hand.

As described above, according to this invention, the switching gear is rotated by the rotational force applied to the axle to which the drive wheels are attached at both ends.
By changing the rotation ratio of the transmission to the vertical shaft by switching the switching gear and the field transmitted to the axle by the vertical shaft, high-speed rotation is given to the static shaft, and the inertia power is used to make it run at high speed. be able to.

In addition, the base end of the switching gear is loosely supported on the axle, and the push-up spring is supported on the related support piece at the tip, so it is always supported parallel to the axle, unlike the case where the switching gear is simply supported in the corresponding elongated hole. Since there is no tilting from side to side, there is no strain on the mesh, and rotation is not only transmitted smoothly, but even if the switching gear is configured to move up and down, the action of the spring balances the gravitational force. It is provided so that it automatically rises, and the switching gear can be switched by following the rotational force of the axle sharply according to the rotating force of the axle.

Therefore, the toy car can be started just like the starting scene of a race car, which is very interesting.

[Brief explanation of the drawing]

Figure 1 is a plan view of this invented device, Figure 2 is Figure 1 A-A.
3 is a sectional view taken along line B-B in FIG. The figure is a plan view showing the support structure of the branch, and FIG. 6 is a side view of the device installed in a toy car. 1...Machine frame, 2...Drive wheels, 3...
...Axle, 4...Push-up spring, 5...
... Support piece, 6 ... Limiting hole, 7 ... Support shaft, 8 ... Spur gear, 9 ... Pinion gear, 10 ... ... Spur gear, 11 ... Vertical shaft, 12 ... Static shaft, 13.14 ... Pinion gear, 15 ... Expansion spring, 16 ...
...Support shaft, 17...Pinion gear, 18.
...Spur gear, 19...Spindle, 20...
... Pinion gear, 21 ... Spur gear, 22.
...Car body.

Claims (1)

[Scope of utility model registration request] When the drive wheel is rotated by applying force to the machine frame in a certain direction, the switching gear rotates in the direction of rotation of the gear on the axle, causing the vertical shaft to rotate at high speed through a group of speed-up transmission gears with a large rotation ratio. let me,
When the drive wheel is rotated by the vertical shaft power, the switching gear rotates and the drive wheel is rotated at high speed by the transmission gear with a small rotation ratio. In addition to having a pinion gear on the side that meshes with the shaft, the base end is loosely supported on the axle and the tip is supported by a support shaft attached to the tip of the branch, which is associated with a push-up spring, so that force can be applied in a fixed direction. A vertical shaft power unit for a toy car, which is always rotated upward by the action of a spring and meshes with a transmission gear having a small rotation ratio.