JPH0753671Y2 - Drive wheel device for riding toys for infants - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive wheel device for a riding toy for infants.

[0002]

2. Description of the Related Art Conventionally, in a toy, an axle is driven into and fixed to wheels, including drive wheels of a riding toy for infants, and rotation from a motor to an axle is caused by a gear fixed to the axle. What was communicated was general. That point
The improved version is published in Japanese Utility Model Publication No. Sho 59-19190.
Proposed.

[0003]

[Problems to be solved by the invention] Improved conventional method
The intended 59-19190 Patent Publication, In no event to produce a wheel blow molding, since the thickness of the wheel is thin, the structure in which a conventional manner engage the shaft the strength is weakened
There was a risk of breakage. This idea will take the wheel
Blow molding to reduce the manufacturing cost,
Its purpose was to improve its transmission performance and dramatically extend its durability.

[0004]

Axle shafts projecting outward from both side walls of a vehicle body are arranged, an inner engagement element of a drive wheel supported by the axle shaft, and an engagement portion of a joint gear wheel supported by the axle shaft. In the drive wheel device of the infant riding toy for transmitting the drive wheel by associating the motor with the gear portion of the joint gear and engaging the motor with the outer stopper caps fixed to both ends of the axle to regulate the juxtaposition distance, This side is equipped with a cylindrical fitting part
The fitting part is engaged with the vehicle body to prevent it from rotating, and
A part of the motor is housed inside and the pinion of the motor
Multiple stages of related transmission gears are housed in the inner shaft, and the final stage
The joint gear is accommodated in the shaft and is transmitted, and the lower part is inward.
Through the axle on the inner diameter side, a cylindrical shaft for supporting the joint gear rotating <br/> rolling can to the outer diameter side is provided, the engaging element of the inner drive wheel
And the engaging part of the joint gear supported on the axle.
It is characterized in that it is provided with spacers that are held at intervals.
There is a drive wheel device for riding toys for infants .

[0005]

Since the present invention is constructed as described above, the spacer containing the transmission gear is supported on the axle only by allowing the wheel and the gear to freely support the axle, and the wheel and the gear are supported. It can be directly connected.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings which are an example of an embodiment.
The rear axle 2 protruding leftward and rightward from a and 1a is rotatably supported, and the drive wheel 3 is arranged on one side and the idle wheel 4 is arranged on the other side.

Spacers 5 and 5 are arranged between the drive wheels 3 or idler wheels 4 and the side walls 1a and 1a of the vehicle body 1, and cylindrical fitting portions 5a1 and 5a1 projecting inward from the upper portions thereof are provided on the vehicle body. Are fitted and supported in bearing holes 6 and 6 formed in the side walls 1a and 1a of the
The rear axle 2 extends through the lower part. And that drive wheel 3
The spacer 5 on the side of is mounted with the motor 7 inside, and the motor shaft 8 thereof is supported by the transmission gears 10 and 11 that mesh with the pinion 9 provided at the outer end thereof, and finally the idle shaft is mounted on the rear axle 2. In addition, it meshes with the joint gear 12 housed in the spacer, and the rotation of the motor 7 is decelerated and transmitted to the joint gear 12.

The joint gear 12 is provided with a flower pot-shaped engaging portion 13 on the outer side and a gear portion 14 on the opposite inner side, and the engaging portion 13 is an engaging member 15 formed to project on the inner surface of the drive wheel 3. It is fitted and engaged with.

Caps 16 and 16 are fitted on the outer surfaces of the drive wheel 3 and the idler wheel 4, and outer stop caps 17 and 17 are fixed to both outer ends of the rear axle 2. In the above embodiment, the drive wheel 3 and the idle wheel 4 are used as the same blow-molded wheel, but they may be provided with different structures, and although not shown, they are injection-molded products not blow-molded and It may be a molded product that fits.

The blow-molded drive wheel 3 and idler wheel 4 are divided into left and right bearing cylinders in contact with the rear axle 3, and outer bearing cylinders 3a1 and 4a1 are formed continuously on the inner side. The tubular portions 15a, 15a can be fitted therein, and the inner bearing cylinders 3a2, 4a2 are molded in a state in which the previously provided ones are arranged so as to be integrally connected to the drive wheels 3 and the idler wheels 4.

The spacer 5 is provided from a base 5a and a lid 5b, and the cylindrical fitting portion 5a1 and the cylinder shaft 5a2 are the base 5.
It is provided in a.

[0012]

[Effect] Since the present invention is configured as described above, it is not necessary to fix the final stage of the gear associated with the drive wheel and the motor to the axle, and only fit the spacer.
Can transmit the rotation from the motor pinion to the wheels.
It can, low co assembled with a simple structure simply by engaging the upper portion
Can also be provided on the shaft and the spacers are supported on the shaft.
In addition, since the engagement is regulated on the left and right , it does not have the drawback of loosening the fixation and is highly durable, and has a great practical effect as a drive wheel device for a riding toy for infants. .

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of the drive wheel device of the present invention taken along a rear axle.

FIG. 2 is an enlarged vertical cross-sectional view of the main part of the same.

FIG. 3 is a perspective view of a drive wheel and an engagement joint gear alone.

FIG. 4 is a perspective view of the drive wheel alone as viewed from the inner side surface.

FIG. 5 is a side view showing a transmission gear group from the motor shaft to the engagement joint.

FIG. 6 is an external perspective view of a baby riding toy equipped with the drive wheel device of the present invention.

[Explanation of symbols]

1 Vehicle Body 1a Side Wall 2 Rear Axle 3 Drive Wheel 3a1 Bearing Tube 3a2 Bearing Tube 4 Idling Wheel 4a1 Bearing Tube 4a2 Bearing Tube 5 Spacer 5a Base 5b Lid 5a1 Tubular Fitting 5a2 Tube Shaft 6 Bearing Hole 7 Motor 8 Motor Shaft 9 Pinion 10 Transmission Gear 11 Transmission Gear 12 Joint Gear 13 Engagement Part 14 Gear Part 15 Engagement Element 15a Shaft Cylindrical Part 16 Cap 17 Outer Stop Cap

Claims (1)

[Scope of utility model registration request] 1. An axle that projects outward from both side walls of a vehicle body is provided, and an engaging element inside a drive wheel that is supported by this axle and an engaging portion of a joint gear that is supported by the axle are both ends of the axle. outside the sealing cap is engaged to regulate the juxtaposed intervals, the drive wheel device odor riding toy for infants for transmission the drive wheel in conjunction with the gear portion and the motor of the joint gear is secured to
A tubular fitting part on one side of the upper part, and this tubular fitting part
It engages with the body to form a detent and the motor inside
A part of the motor and the transmission associated with its motor pinion
Multiple stages of gears are internally supported and jointed to the final stage
And transmission gear housing journalled to and cars on the inner diameter side to the lower inwardly
Through the shaft, rotatably supporting the joint gear on the outer diameter side
A cylindrical shaft is installed to support the engaging element inside the drive wheel and the axle.
The joint of the joint gear to be held at a required interval
Riding toys for infants characterized by having spacers
Drive wheel device.