JPH0122707Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is an all-wheel drive system that allows the wheels to contact the ground in response to unevenness on the road surface, providing so-called independent suspension-like movement of the axle, and ensuring reliable traversal. It provides toys.

(Prior Art) As a conventional all-wheel drive traveling toy, a recessed part of the required width is provided in the center of the bottom of the chassis body, a movable chassis separate from the chassis body is installed in this recessed part, and this movable chassis A bearing is provided at the center of the chassis body along the central axis in the longitudinal direction of the chassis body, and the center portion of the transmission shaft that is supported within the chassis body is mounted on this bearing. The rear end of the transmission shaft is connected to the drive shaft with the rear wheels attached to both ends, and the drive shaft is connected to the output gear of the prime mover installed on the upper rear surface of the chassis body, and the front end of the transmission shaft is connected to the front wheel. The inner ends of the left and right axles are respectively supported by bearings in the movable chassis, and an intermediate axle is attached to the outer end of each axle between the front wheels and the rear wheels. The inner end of the axle, which is divided into left and right parts, is directly connected to the transmission shaft through a transmission gear, and the inside end of the axle is connected to the transmission shaft through an intermediate transmission pinion. Toys existed (for example, Japanese Utility Model Application No. 60-69190).

(Problem that the invention aims to solve) However, in conventional all-wheel drive traveling toys, the mounting positions of the drive shaft, axle, and front axle are fixed, so when the running surface is uneven, It was easy to create gaps between each wheel.

As a result, even if each axle rotates,
Since there is a gap between the running surface and each wheel, the wheels spin idly, making it impossible for the chassis body to run reliably.

Therefore, the present invention was devised to solve the above-mentioned problems, and the wheels contact the ground according to the unevenness of the road surface, and the movement of the axle similar to that of an independent suspension is obtained, thereby ensuring a reliable system. The purpose is to provide an all-wheel drive traveling toy that can travel across the country.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention aims to solve the problems described above.
In a traveling toy that has a plurality of axle bodies with wheels fixed to both ends, a transmission shaft is pivotally supported orthogonally to the axle bodies, and the transmission shafts and the axle bodies are connected via gears. A fixed axle that does not move is provided, and a swinging axle that swings about the longitudinal center in a vertical plane parallel to the fixed axle is provided. A swinging frame having an overall U-shape that pivots, and a transmission shaft pivoted at the center of the swinging frame so as to be orthogonal to the axle body.
The transmission shaft and the axle main body are each composed of a small spur gear and a crown gear that connect each other, and the swing axle is formed by rotatably fitting the transmission shaft into a bearing notch in a bearing plate protruding from the chassis. did.

(Function) By using the above-mentioned technical means, the present invention uses the above-mentioned technical means to move the front swinging wheel upward when the front wheel rides on the convex part, and to move the front swinging wheel upward while the other wheels remain on the running surface. Only the wheels of will be lifted.

Further, when the intermediate wheel rides on the convex portion, the front and rear rocking axles move downward, and only the intermediate wheel is lifted up while the other wheels remain installed on the running surface.

Further, when the rear wheel rides on the convex portion, the rear swing axle moves upward, and only the rear wheel is lifted up while the other wheels remain on the running surface.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. In the figure, 1 is a roughly rectangular box-shaped chassis;
This chassis 1 has an axle main body 2 in its length direction, that is, in a direction perpendicular to the front and back direction when the traveling toy is constructed.
This is a fixed axle 3 that is pivotally supported and does not swing relative to the chassis 1. Furthermore, wheels 4 are fixed to both ends of the axle body 2.

In addition, the chassis 1 in front and behind the fixed axle 3
Inside, a swinging axle 5 is disposed within a vertical plane parallel to the fixed axle 3 and centered on a longitudinal centerline.

The swinging axle 5 includes an axle main body 2 with wheels 4 fixed to both ends, a swing frame 6 having an overall U-shape that pivotally supports the axle main body 2, and a swing frame 6 in the center of the swing frame 6 that is perpendicular to the axle main body 2. The transmission shaft 7 is supported so that the transmission shaft 7
and a small spur gear 8 and a crown gear 9 that connect the axle main body 2, respectively, and this swing axle 5 is connected to the chassis 1.
The transmission shaft 7 is installed in the vehicle chassis 1 by rotatably fitting the transmission shaft 7 into the bearing notch 11 of the bearing plate 10 protruding from the bearing plate 10.

The axle main body 2 is supported in the swing frame 6 by forming bearing notches 11 at both ends of the swing frame 6 and rotatably fitting the axle main body 2 into the bearing notches 11. conduct.

A small spur gear 8 having the same shape as the small spur gear 8 is fixed to the end of the transmission shaft 7 of the swing axle 5 configured as described above, opposite to the end to which the small spur gear 8 is fixed. on the other hand,
A crown gear 9 having the same shape as the crown gear 9 is fixed to the fixed axle 3, and the crown gear 9 and the small spur gear 8 are meshed with each other.

In addition, 12 in the figure is a movement restriction ring that restricts the axle body 2 from moving in its axial direction.
In the case of the axle body 2 of the swinging axle 5, it is arranged so as to come into contact with the inner surface of the arm portion 6A of the swinging frame 6, and the movement regulating ring 12 and the outer surface of the crown gear 9 are connected to the arm portion 6A of the swinging frame 6.
They are prevented from moving in the axial direction by abutting against the inner surface. Further, in the case of a fixed axle 3, it is arranged so as to abut the inner surface of both side plates 1A of the chassis 1, so that it does not move in the axial direction.

As shown in FIG. 2, the swing axle 5 is arranged in front and behind the fixed axle 3 arranged in the center of the chassis 1, respectively, so that all six wheels become driving wheels. Not limited to this, fixed axle 3
It may be a combination of a suitable number of rocking axles 5 connected thereto, and may be a multi-wheeled vehicle such as a four-wheeled vehicle, eight-wheeled vehicle, ten-wheeled vehicle, twelve-wheeled vehicle, or the like.

Incidentally, the connection between the axle main body 2 of the fixed axle 3 and the axle main body 2 of the swing axle 5 and each transmission shaft 7 is, in the illustrated example, a crown gear 9 on each axle main body 2 and a small spur gear 8 on the transmission shaft 7. I am trying to do this by fixing each of them,
Although not shown, there are other types such as a combination of bevel gears and a combination of a worm and a worm wheel. However, if we take the illustrated example,
The axle main body 2 of the swing axle 5 swings smoothly, and since each axle main body 2 and the transmission shaft 7 are located within the same height of the chassis 1, the overall structure can be made compact. In addition, a bearing notch 11 is formed in the side plate 1A of the chassis 1 to pivotally support the axle body 2 of the fixed axle 3, and furthermore, a bearing notch 11 is formed in the side plate 1A to allow the axle body 2 of the swinging axle 5 to swing freely. The swing notch 13 is formed to be long in the vertical direction.

A driven gear 15 for transmitting the drive from the motor 14 is fixed to either the axle main body 2 of the fixed axle 3 or a non-swinging shaft such as the transmission shaft 7 of the swinging axle 5. A reduction gear 17 provided on the inner frame 16 is meshed with this driven gear 15.

The middle frame 16 is formed into a substantially rectangular box shape so as to be fitted into the chassis 1, and the middle frame 16 is formed into a substantially rectangular box shape so as to fit into the chassis 1.
8, motor 14, reduction gear 17, and motor 14
An operating switch 19 is provided. The reduction gear 17 includes a driving gear 17A, which is a large-diameter gear that meshes with the driving gear 20 of the motor 14, and the driven gear 15.
A driven wheel 17B, which is a small-diameter gear meshing with the driven wheel 17B, is arranged in parallel with the driven wheel 17B.

Then, a frame B is fitted onto the toy main body A in which the chassis 1 and the middle frame 16 are fitted and combined.

(Effect of the invention) According to the invention, a plurality of axle bodies 2 to which wheels 4 are fixed at both ends are orthogonal to each other in a direction perpendicular to the length direction of the approximately rectangular box-shaped chassis 1. In a traveling toy in which a transmission shaft 7 is pivotally supported and the transmission shaft 7 and the axle main body 2 are connected via gears, a fixed axle 3 that does not swing relative to the chassis 1 is arranged, and A swing axle 5 is provided that swings around the center in the longitudinal direction in a vertical plane parallel to the fixed axle 3, and the swing axle 5 is provided with a U-shaped overall structure that pivotally supports the axle body 2. Swing frame 6 and this swing frame 6
The oscillating axle 5 is composed of a transmission shaft 7 which is supported perpendicularly to the axle body 2 in the center thereof, and a small spur gear 8 and a crown gear 9 that connect the transmission shaft 7 and the axle body 2, respectively. Since the transmission shaft 7 is rotatably fitted into the bearing notch 11 of the bearing plate 10 protruding from the bearing plate 10, the swing frame 66 can swing around the transmission shaft 7. Specifically, as shown in FIG. 5, when the front wheel 4 rides on the convex part, the front swing axle 5 moves upward, and the other wheels 4 remain installed on the running surface and move forward. Only wheel 4 of is lifted up. Furthermore, when the intermediate wheel 4 rides on the convex portion, the front and rear rocking axles 5 move downward, leaving the other wheels 4 installed on the running surface, while the intermediate wheel 4
Only the chisel is lifted. Furthermore, when the rear wheel 4 rides on the convex portion, the rear swing axle 5 moves upward, and only the rear wheel 4 is lifted up while the other wheels 4 remain installed on the running surface. In this way, the axle main body 2 of the swing axle 5 can swing within the chassis 1 in a vertical plane parallel to the fixed axle 3, and the axle main body 2 can swing around the axial center of the transmission shaft 7. Since rotational drive is obtained through the vehicle, the axle body 2 of the swinging axle 5 swings in response to the unevenness of the road surface during driving, which prevents each wheel 4 from spinning and provides high ground contact. The structure of the rocking axle 5 serves as a driving wheel, and provides an effect similar to that of an independent suspension in a so-called real automobile.

In addition, this swing axle 5 has the advantage that an all-wheel drive multi-wheel vehicle can be provided with a simple and easy configuration by simply connecting them together.

As explained above, according to the present invention, the wheels contact the ground in response to the unevenness of the road surface, so that so-called independent suspension movement of the axle is obtained, and the road surface can be reliably traveled. Not only can we provide driving toys, but also 6
This has various effects that are extremely useful in practice, such as the ability to provide multi-wheeled vehicles such as wheels, eight wheels, etc., with a simple structure, compactness, and ease.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a perspective view of the whole, Figure 2 is an exploded longitudinal sectional view of the whole,
3 is a view taken along the line X--X in FIG. 2, FIG. 4 is a sectional view taken along the Y--Y line in FIG. 2, and FIG. 5 is an overall side view showing the state of use. A... Toy body, B... Frame, 1... Chassis, 1A... Side plate, 2... Axle body, 3... Fixed axle, 4... Wheel, 5... Rocking axle, 6... Rocking Frame, 6A...Arm, 7...Transmission shaft, 8...Spur gear, 9...Crown gear, 10...Bearing plate, 11...Bearing notch, 12...Movement restriction ring, 13...Rock Dynamic notch, 14... Motor, 15... Driven gear, 16
... middle frame, 17 ... reduction gear, 17A ... prime mover, 17B ... driven wheel, 18 ... battery storage box, 19 ... open/close switch, 20 ... drive gear.

Claims (1)

[Scope of utility model registration request] A transmission shaft is supported perpendicularly to a plurality of axle bodies to which wheels are fixed at both ends in a direction perpendicular to the length direction of a substantially rectangular box-shaped chassis, and a transmission shaft and axle body are supported. A traveling toy that is connected through gears, has a fixed axle that does not swing relative to the chassis, and also has a fixed axle that swings about the center in the longitudinal direction in a vertical plane parallel to the fixed axle. A swinging axle is provided, and this swinging axle is connected to a swinging frame having an overall U-shape that pivotally supports the axle body, and a transmission shaft that is pivoted at the center of the swinging frame so as to be orthogonal to the axle body. , consisting of a small spur gear and a crown gear that connect the transmission shaft and the axle body, respectively, and the swing axle is formed by rotatably fitting the transmission shaft into a bearing notch of a bearing plate protruding from the chassis. An all-wheel drive toy featuring: