JPH0117332Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a traveling toy that can run upside down.

[Conventional technology]

In order to improve the ground contact of the left and right wheels,
-Devices as seen in Publication No. 26430 and the specification of British Patent No. 864126 have been made in the past, but the idea was to create a running toy in which the chassis is formed by an upper and lower chassis that is divided into upper and lower chassis, and which can also run upside down. No special efforts have been made yet.

The present invention was developed based on the fact that this type of split chassis is generally manufactured by molding plastic. It can be molded in one piece with a mold very easily.

[Means to solve the problem]

The present invention provides a traveling toy in which the chassis is formed of an upper chassis and a lower chassis that are divided into two halves, and an axle is pivotally supported between the divided surfaces. and the left and right shaft bearings are respectively formed to protrude, the left and right shaft bearings are lower in height than the center shaft support, and the axle is pivotally supported in the gap between the center shaft support and the left and right shaft bearings. It is a traveling toy that is characterized by:

[Effect]

The traveling toy of the present invention has a center shaft support portion and a left and right shaft support portion protruding from the inner surfaces of the upper and lower chassis, facing each other, and the height of the left and right shaft support portions is lower than that of the center shaft support portion. Since the axle is supported in the gap between the center shaft support and the left and right shaft support, even when the traveling toy runs with the upper chassis upward, the axle that is supported in the gap can be moved with the lower chassis upward. When driving, the center part of the axle is supported by one central shaft support, and the axle swings vertically around the support, resulting in the left and right wheels moving up and down independently. Improves ground contact.

Incidentally, this gap can be formed by forming a central shaft support part and left and right shaft support parts lower than the central shaft support part so as to face each other and protrude from the inner surfaces of each of the upper and lower chassis. Therefore, to easily form a chassis for a running toy that is capable of running upside down and upside down and has an axle support that improves the ground contact of the wheels by simply integrally molding each support section when molding the upper and lower chassis using respective molds. I can do it. In addition, since the respective support portions of the upper and lower chassis may be vertically symmetrically protruded, the molds for these portions can be used for manufacturing both the upper and lower chassis.

〔Example〕

An embodiment of the present invention will be described in detail based on FIGS. 1 to 7.

The traveling toy 1 includes a chassis 4, a front axle 5 having front wheels 2, 2 (for convenience, it is assumed that the vehicle moves forward in the direction of an arrow 21 in the state shown in FIG. 1), a rear axle 6 having rear wheels 3, 3, and a drive mechanism in which a motor 12, a battery 11, a connector 10, and a switch 9 are electrically connected.

The chassis 4 is a rectangular frame-shaped member consisting of an upper chassis 4a and a lower chassis 4b that are divided into upper and lower halves almost equally and are fitted and locked to each other. A switch holding section 9' is housed, a connector holding section 10' is housed with the connector 10, a battery holding section 11' is housed with a battery 11 such as a Ni/Cd battery, and a motor holding section where the motor 12 is housed. 12' are respectively formed.

A central shaft support portion 15 is provided on each of the front inner surfaces of the upper chassis 4a and the lower chassis 4b so as to face each other.
a, 15b, and left and right shaft support portions 22a, 22a, 2 which are lower by height h than the central shaft support portions 15a, 15b.
2b, 22b are formed to protrude, and the central shaft support portion 15
a. The front axle 5 is pivotally supported in the gap 13 between the left and right shaft support parts 22a, 22a, the central shaft support part 15b, and the left and right shaft support parts 22b, 22b (see FIG. 4).
In this example, the left and right shaft support portions 22a and 22b are formed at the bottoms of U-shaped recesses provided opposite to the dividing surfaces of the left and right walls of the upper and lower chassis 4a, 4b,
Both sides of the recessed portion serve as restricting portions on the front and rear sides of the front axle 5, and the interval therebetween is larger than the shaft diameter. The center shaft support portions 15a and 15b are formed such that the distance between their tips is larger than the shaft diameter, and the shape of the tip surface is a plane that is slightly long in the axle direction, but it may also be a plane that is long in the front-rear direction or a ridge line (a contact line). , a gently concave curved surface may be used. In any case, the shape does not prevent the driven rotation of the front axle 5, nor does it prevent parallel movement in the longitudinal, horizontal, and vertical directions, as well as vertical and horizontal rotation of the shaft around the contact points of the central shaft support parts 15a and 15b. Preferably.

Axial support portions 14, 14 for the rear axle 6 are provided protruding from the rear inner surfaces of the upper and lower chassis 4a, 4b, respectively. In this example, semicircular recesses are provided in the dividing surfaces of the left and right walls, facing each other so as to form a hole that fits into the cylindrical portion 12' at the end of the motor frame. Although the rear axle 6, which is the output shaft, is supported through the cylindrical portion 12' (see FIG. 1), a structure may be adopted in which the rear axle 6 is directly supported. Further, the dimensions may be large enough to prevent play in the front-rear and vertical directions, or the size may be large enough to allow play.

On the other hand, the front and rear wheels 2 and 3 include a wheel 16 that is fixed to both ends of the front and rear axles 5 and 6 in the rotational direction and slidable in the axial direction, and a flat tire 17 that is fitted and fixed to the outer periphery of the wheel 16. It has a position and shape that protrudes outward in all directions, front and back, left and right, top and bottom of the chassis 4, and absorbs shock, RR.
It has a configuration that allows it to drive and front-wheel drive. That is, the first
In the state shown in the figure, the traveling toy 1 traveling RR in the direction of the arrow 21 turns the traveling toy 1 back and forth in the front-rear direction (turning around the rear axle 6), travels FF in the direction of the arrow 21, and rolls over. Flip it over and you'll see arrow 21.
The vehicle runs FF in the opposite direction (the rear axle 6 becomes the front axle). As shown in FIG. 7, the wheel 16 has an axle hole with a gap C ₁ between the front and rear axles 5 and 6 terminals so that the front and rear axles 5 and 6 are slidably fitted in the axial direction. It consists of a bored central shaft part, an annular rim part with a substantially convex cross section into which the flat tire 17 is fitted and fixed, and a disk part in which a large number of circular holes are bored. The flat tire 17 is made of an elastic material such as rubber or synthetic resin, and is formed into an annular shape having a substantially oval cross section with both peripheral edges protruding outward from both ends of the rim portion.

In the figure, 7 is a screw that connects the upper and lower chassis 4a and 4b, 8 is an overhanging member that comes into contact with the wheels in the event of an impact and absorbs and cushions the impact, 18 is a window for supporting battery clamping and heat radiation, and 19 is a slit. , 20 is a body engaging portion.

Therefore, the central shaft support portion 15 of the upper chassis 4a
a, left and right shaft support parts 22a, 22a and lower chassis 4
central shaft support portion 15b, left and right shaft support portions 22b,
22b are symmetrical to each other as shown in FIG. 4, so when the upper and lower chassis 4a and 4b are molded with plastic, the inner surfaces of these parts can be easily manufactured using the same mold. can.

[Effect of idea]

The traveling toy of the present invention has a center shaft support portion and a left and right shaft support portion protruding from the inner surfaces of the upper and lower chassis, facing each other, and the height of the left and right shaft support portions is lower than that of the center shaft support portion. is pivotally supported in the gap between the center shaft support and the left and right shaft support, so that the gap allows the center shaft support and the left and right shaft support lower than the center shaft support to face each other on the inner surface of each of the upper and lower chassis. It can be formed by making it protrude. Therefore, the same mold can be used for the inner side molds of the upper and lower chassis, and even when the vehicle is traveling upside down, it has exactly the same axle support mechanism, which eliminates strain on the vehicle.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view, Fig. 2 is a plan view, Fig. 3 is a sectional view along the line of Fig. 2, and Fig. 4 is a longitudinal sectional view taken along the line of Fig. 3. , FIG. 5 is a bottom view (front and rear wheels omitted), FIG. 6 is a cutaway side view of the chassis taken along the line in FIG. 2, and FIG. 7 is an enlarged longitudinal sectional view of the wheel portion. 1... Running toy, 2... Front wheel, 3... Rear wheel, 4
...Shaft, 4a...Upper seat, 4b...Lower chassis, 5...Front axle, 6...Rear axle, 9...Switch, 10...Connector, 11...Battery,
12...Motor, 13...Gap, 14...Shaft support, 15a, 15b...Central shaft support, 16...
... Wheel, 17 ... Flat tire, 22a, 22
b... Left and right shaft support.

Claims (1)

[Scope of utility model registration request] In a traveling toy in which the chassis is formed by an upper chassis and a lower chassis that are divided into two halves, and an axle is supported between the split surfaces, a center shaft support section and a left and right shaft are arranged facing each other on the inner surfaces of the upper and lower chassis. The bearings are each formed to protrude, and the left and right shaft bearings are lower in height than the center shaft support, and the axle is pivotally supported in the gap between the center shaft support and the left and right shaft bearings. A running toy.