WO2011152274A1

WO2011152274A1 - Travel toy

Info

Publication number: WO2011152274A1
Application number: PCT/JP2011/062077
Authority: WO
Inventors: 幸弘進藤
Original assignee: 株式会社タカラトミー
Priority date: 2010-05-31
Filing date: 2011-05-26
Publication date: 2011-12-08
Also published as: JP2011245206A; US20130072085A1

Abstract

A drive motor (18) is connected to the axle (11) of rear wheels. A steering motor (19) disposed at the center of the front of the chassis (12). An eccentric weight (24) is attached to the rotating shaft (19a) of the steering motor (19), the rotating shaft (19a) extending in the front-rear direction of the vehicle body. The rotational direction of the steering motor (19) is controlled by a control device (21). When the eccentric weight (24) is rotated in one direction by the power of the steering motor (19), the front wheels (Wf) move in one direction in the widthwise direction of the vehicle to yaw the chassis (12). When the eccentric weight (24) is rotated in the opposite direction, the chassis (12) yaws in the opposite direction.

Description

Traveling toy

The present invention relates to a traveling toy provided with a driving device for traveling and a steering device for operating a traveling direction.
This application claims priority on Japanese Patent Application No. 2010-123897 filed in Japan on May 31, 2010, the contents of which are incorporated herein by reference.

2. Description of the Related Art A traveling toy that travels by wireless operation is known that includes a traveling drive motor (drive device) and a steering device (see, for example, Patent Document 1).
In this traveling toy, a driving motor for traveling is connected to the rear wheel axle via a gear, and the left and right front wheels are steered by a steering device. In the steering device, knuckles that rotatably support the left and right front wheels are swingably held by the chassis, and each knuckle is linked to a steering motor via a plurality of links and a rack and pinion mechanism. In this traveling toy, the steering angle of the left and right front wheels is arbitrarily operated by controlling the rotation of the steering motor.

JP 2006-136704 A

This conventional traveling toy has many parts of the steering device for turning the left and right front wheels and has a complicated structure, which causes an increase in manufacturing cost.
Further, this conventional traveling toy turns the chassis by cooperation of driving the rear wheels and turning the front wheels. That is, in order to turn the vehicle body, it is necessary to steer while moving the vehicle body back and forth, and a turning radius of a certain degree or more is required. Therefore, it is difficult for a conventional traveling toy to turn in a narrow space.

An object of the present invention is to provide a traveling toy having a smaller turning radius and a simple structure.

The traveling toy according to the present invention includes a chassis, wheels disposed on the left and right sides of the chassis, rotatably supported by the chassis, and provided on the chassis, and steering of at least one of the left and right wheels. Device. The steering device includes a rotation motor disposed at a center of the chassis in a vehicle width direction so that a rotation shaft extends along a vehicle longitudinal direction, an eccentric weight attached to the rotation shaft, and a rotation direction of the rotation motor. And the eccentric weight is disposed at a front portion or a rear portion of the chassis.

When the rotation of the rotary motor is controlled by the control device and the eccentric weight rotates in one direction, the force acting on the eccentric weight varies between the region where the eccentric weight is lowered and the region where the eccentric weight is raised. In other words, the driving force and gravity of the rotary motor act on the eccentric weight, but in the region where the eccentric weight descends, the driving force of the rotary motor acts as a component force directed vertically downward on the eccentric weight, and the eccentric weight rises. In the region, the driving force of the rotary motor acts as a component force directed vertically upward on the eccentric weight.

Therefore, when the eccentric weight is in the downward stroke, the contact load on the contact surface such as a wheel is increased, and the movement of the contact surface in the vehicle width direction is suppressed. Further, when the eccentric weight is in the upward stroke, the ground load on the ground contact surface such as a wheel is reduced, and the movement in the vehicle width direction is caused by the centrifugal force acting on the eccentric weight. As a result, unidirectional yaw rotation occurs in the chassis. Further, when the rotary motor rotates in the other direction under the control of the control device, the movement in the vehicle width direction of the chassis accompanying the rotation of the eccentric weight is reversed left and right, and the yaw rotation in the other direction occurs in the chassis.

In other words, when the center of gravity of the eccentric weight moves downward around the rotation axis and when it moves upward around the rotation axis, the direction of action of the vertical component of the inertial force accompanying the movement of the eccentric weight changes mutually. To do. When the center of gravity of the eccentric weight moves downward, the vertical component of the inertial force acting on the eccentric weight acts downward on the vehicle body, and presses the vehicle body against the ground surface together with gravity. When the center of gravity of the eccentric weight moves upward, the vertical component of the inertial force acting on the eccentric weight acts upward on the vehicle body and tries to lift the vehicle body from the ground surface against gravity.

Also, when the center of gravity of the eccentric weight moves downward around the rotation axis and when it moves upward around the rotation axis, the direction of action of the vehicle width direction component of the centrifugal force accompanying the rotation of the eccentric weight is mutually Change.
When the center of gravity of the eccentric weight moves downward around the rotation axis, the component in the vehicle width direction of the centrifugal force acting on the eccentric weight acts on one side in the vehicle width direction with respect to the vehicle body. However, at this time, the vehicle body is pressed against the grounding surface by the inertial force acting on the eccentric weight, and the frictional force between the wheel and the grounding surface increases, so the centrifugal force of the eccentric weight causes the vehicle body to move in the vehicle width direction. It doesn't come to move to.
When the center of gravity of the eccentric weight moves upward around the rotation axis, the component in the vehicle width direction of the centrifugal force acting on the eccentric weight acts on the other side in the vehicle width direction with respect to the vehicle body. At this time, the inertial force acting on the eccentric weight tries to lift the vehicle body from the grounding surface against gravity, and the frictional force between the wheel and the grounding surface is reduced. Move to the other. By the way, the eccentric weight is arranged at the front part or the rear part of the chassis. Therefore, for example, when the eccentric weight is arranged at the front part of the chassis, the front part of the vehicle body is moved to the other in the vehicle width direction due to the inertial force and centrifugal force generated by the rotation of the eccentric weight. To do. However, since the rear part of the vehicle body is separated from the eccentric weight, it is difficult to receive the effects of inertial force and centrifugal force generated with the rotation of the eccentric weight. As a result, the vehicle body turns so that the front portion faces the other in the vehicle width direction.

In the traveling toy of the present invention, the eccentric weight may be arranged on either the front side or the rear side of the yaw center of the chassis.
Thereby, the movement of the chassis in the vehicle width direction accompanying the rotation of the eccentric weight occurs at a position shifted in the front-rear direction from the yaw center of the chassis.

In the traveling toy according to the present invention, the eccentric weight may be disposed in the vicinity of an upper portion of an axis connecting the left and right wheels on the front and rear sides of the chassis.

In the traveling toy according to the present invention, a covering band may be provided between the front left and right wheels and the right front and rear wheels of the chassis. Thereby, when a wheel is rotationally driven by the drive device, the left and right cover strips rotate through the wheel, and traveling by the cover strip becomes possible.
In addition, a vehicle capable of traveling with a bandage normally turns the vehicle body by causing the left and right bandages to have different rotational speeds. However, in the traveling toy of the present invention, the vehicle body is turned by the action of the inertial force and centrifugal force generated with the rotation of the eccentric weight, so that the vehicle body can be provided without having different rotational speeds for the left and right cover bands. Can be swiveled. That is, it is not necessary to separately control the rotation speeds of the left and right cover strips.

According to the traveling toy of the present invention, the manufacturing cost can be reduced by the simplification of the structure, and the yaw rotation can be generated in the chassis by the steering device alone, so that the chassis can be easily turned even in a narrow space. It becomes possible to make it.

According to the traveling toy of the present invention, the movement in the vehicle width direction of the chassis accompanying the rotation of the eccentric weight occurs at a position shifted in the front-rear direction from the yaw center of the chassis, so that the turning force can be reliably applied to the chassis. it can.

According to the traveling toy of the present invention, the eccentric weight rotates in the vicinity of the upper part of the axis connecting the front and rear left and right wheels, and the load variation accompanying the rotation is efficiently transmitted to the front and rear left and right wheels. This makes it easier for the ground contact surface to move laterally with respect to the road surface. Therefore, the turning performance of the chassis can be further improved.

According to the traveling toy of the present invention, the chassis can be turned without giving different rotation speeds to the left and right bandages. That is, it is not necessary to separately control the rotation speeds of the left and right cover strips.

1 is an external view of a remote control toy according to a first embodiment of the present invention. It is the top view which removed the body panel of the traveling toy of 1st Embodiment of this invention. It is A arrow directional view of FIG. 2 of the running toy of 1st Embodiment of this invention. It is a figure corresponding to FIG. 3 which shows the action | operation (down stroke) of the eccentric weight at the time of the right turn of the traveling toy of 1st Embodiment of this invention, and the behavior of a chassis. It is a figure corresponding to FIG. 3 which shows the action | operation (rise process) of the eccentric weight at the time of the right turn of the traveling toy of 1st Embodiment of this invention, and the behavior of a chassis. It is the top view which removed the body panel of the traveling toy of 2nd Embodiment of this invention.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings. In addition, about each embodiment demonstrated below, the same code | symbol shall be attached | subjected to the same part and the overlapping description shall be abbreviate | omitted. In the drawings, the arrow FR indicates the front front of the traveling toy, UP indicates the upper side of the traveling toy, and L indicates the left side in the forward direction of the traveling toy. In the following, unless otherwise specified, front / rear, up / down, and left / right designations follow the directions of the arrows in the figure.

First, the first embodiment shown in FIGS. 1 to 5 will be described.
FIG. 1 shows an appearance of a remote toy 100 including a four-wheel vehicle type traveling toy 1 and a wireless type remote controller 2 (hereinafter referred to as “remote controller 2”) for remotely controlling the traveling of the traveling toy 1. FIG.

The traveling toy 1 includes a chassis 12, front and rear wheels Wf, Wr, and a steering device 25. The steering device 25 includes a rotary motor 19, an eccentric weight 24, and a control device 21. A body panel 13 is attached to the upper part of the chassis 12 that supports the front and

rear axles

10 and 11, and front wheels Wf and Wf and rear wheels Wr and Wr are attached to the front and

rear axles

10 and 11, respectively. The remote control 2 incorporates a transmission device (not shown) that outputs an operation signal to the traveling toy 1 using infrared rays or radio waves, and has an operation switch 14 for forward and backward operation, an operation switch 15 for left and right steering, A channel changeover switch 16 and a charge button 17 are provided. The charge button 17 is used when the traveling toy 1 is connected to the remote control 2 to charge power.

FIG. 2 is a view of the traveling toy 1 from which the body panel 13 has been removed as viewed from above, and FIG. 3 is a view of the traveling toy 1 from which the body panel 13 has been removed as viewed from the front.
As shown in these figures, a drive motor 18 (drive device) for driving the axle 11 on the rear wheel Wr side is installed in the rear region of the chassis 12. A steering motor 19 to be described in detail is installed. In the central region in the front-rear direction of the chassis 12, a receiver 20 that receives a signal transmitted from the remote controller 2 and a control that controls the drive motor 18 and the steering motor 19 based on the signal received by the receiver 20. A device 21 is installed. The power of the drive motor 18 is transmitted to the axle 11 on the rear wheel Wr side via the reduction gear 22. The heat generated from the drive motor 18 is radiated through the metal plate 23.

The steering motor 19 is a rotary motor similar to the drive motor 18, and a thick disc-shaped eccentric weight 24 having a large mass is attached to the rotary shaft 19a with its center of gravity separated from the rotary shaft 19a. .
The steering motor 19 is installed at the center in the vehicle width direction on the chassis 12 so that the rotating shaft 19a is along the vehicle body longitudinal direction. The eccentric weight 24 rotates around the rotation shaft 19a in a plane including the vehicle width direction and the vertical direction. The steering motor 19 and the eccentric weight 24 are disposed in the vicinity of the upper portion of the axle 10 on the front wheel Wf side, and are disposed in front of the yaw center Y of the chassis 12. Further, the rotation direction of the steering motor 19 can be switched by current control by the control device 21.

4 and 5 are diagrams illustrating the operation of the eccentric weight 24 and the behavior of the vehicle body of the traveling toy 1 during a right turn.
Hereinafter, the operation of turning the vehicle body by the steering device 25 used in the traveling toy 1 will be described. Regarding the rotation direction of the rotating shaft 19a of the steering motor 19 and the eccentric weight 24, the direction indicated by the arrow R in FIGS.

When the rotating shaft 19a of the steering motor 19 rotates in the forward rotation direction and the eccentric weight 24 pivots from the highest position to the lowest position, as shown in FIG. Both the component forces of the driving force of the motor 19 act as a force directed vertically downward. On the other hand, as shown in FIG. 5, when the eccentric weight 24 pivots from the lowest position to the highest position, gravity acts on the eccentric weight 24 downward and the steering motor 19 is driven. The force component acts as a force directed vertically upward.
Therefore, as shown in FIG. 4, while the eccentric weight 24 turns and moves from the highest position to the lowest position, the front wheel Wf is brought into contact with the ground surface due to a large load due to gravity and the driving force (component force) of the steering motor 19. The movement of the front wheel Wf in the vehicle width direction is suppressed. Therefore, even if the chassis 12 is pressed to the left in the vehicle width direction by the centrifugal force acting on the eccentric weight 24 during this time, the front wheel Wf does not move to the left.

On the other hand, as shown in FIG. 5, while the eccentric weight 24 turns and moves from the lowest position to the highest position, the chassis 12 is pushed upward by the component force of the steering motor 19 that moves vertically upward, and the front wheel Wf. The grounding load of the is temporarily reduced. Therefore, during this time, the chassis 12 is pressed to the right in the vehicle width direction by the centrifugal force acting on the eccentric weight 24, and the front wheel Wf moves to the right.
The rightward movement of the front wheel Wf occurs around the yaw center Y of the chassis 12 shown in FIG. 2, and as a result, the chassis 12 turns to the right.

On the other hand, when the rotation shaft 19a and the eccentric weight 24 of the steering motor 19 rotate in the reverse rotation direction, the right and left when rotating in the normal rotation direction described above are replaced, and the vehicle body turns when rotating in the normal rotation direction. A similar action occurs and the chassis 12 turns leftward.

The function of the steering device 25 can be explained as follows. That is, when the center of gravity of the eccentric weight 24 moves downward around the rotation shaft 19a from the highest position to the lowest position, the vertical component of the inertial force acting on the eccentric weight 24 is Acts downward on the car body and presses the car body against the ground plane. As shown in FIG. 5, when the center of gravity of the eccentric weight 24 moves upward from the lowest position to the highest position, the vertical component of the inertial force acting on the eccentric weight 24 is upward with respect to the vehicle body. Acts to lift the vehicle body from the ground surface against gravity.

As shown in FIG. 4, when the center of gravity of the eccentric weight 24 moves downward around the rotation shaft 19a, the component of the centrifugal force acting on the eccentric weight 24 in the vehicle width direction is the vehicle width with respect to the vehicle body. Acts in one direction (left direction). However, at this time, the vehicle body is pressed against the ground contact surface by the inertial force acting on the eccentric weight 24 as described above, and the frictional force between the front wheel Wf and the ground contact surface is increased. Does not lead to moving the vehicle body in one direction (left direction) in the vehicle width direction.

As shown in FIG. 5, when the center of gravity of the eccentric weight 24 moves upward around the rotation shaft 19a, the component of the centrifugal force acting on the eccentric weight 24 in the vehicle width direction is relative to the vehicle body in the vehicle width direction. Acts on the other side (right direction). At this time, the inertial force acting on the eccentric weight 24 tries to lift the vehicle body from the grounding surface against gravity, and the frictional force between the front wheel Wf and the grounding surface is reduced. Move to the other side (right direction) in the vehicle width direction.

Since the eccentric weight 24 is disposed at the front part of the chassis 12, the front part of the vehicle body moves to the other side (right direction) in the vehicle width direction. However, since the rear portion of the vehicle body is separated from the eccentric weight 24, it is difficult to receive the action of inertial force and centrifugal force generated as the eccentric weight 24 rotates. Therefore, the vehicle body turns so that the front portion faces the other side (right direction) in the vehicle width direction.

In addition, what is necessary is just to control the rotation amount (time) of the steering motor 19 when adjusting the turning amount (turning angle) of a vehicle body. That is, while the steering motor 19 continues to rotate, the vehicle body continues to receive a force that turns its front part left or right. Therefore, the steering motor 19 may be rotated for a long time when the vehicle body is to be turned largely, and the steering motor 19 may be rotated for a short time when the vehicle body is to be turned slightly. Furthermore, if the rotation speed at the time of operation of the steering motor 19 is always constant, if the operation switch 15 of the remote controller 2 is kept pressed, the steering motor 19 rotates during that time, and the vehicle body is turned every moment. If the operation switch 15 is released when the vehicle body turns in the direction intended by the operator, the rotation motor 19 stops at that point and the vehicle body also stops turning.

As described above, the traveling toy 1 of this embodiment causes the chassis 12 to yaw rotation by the steering motor 19 and the eccentric weight 24 disposed in front of the chassis 12. At the same time, the traveling toy 1 can arbitrarily operate the yaw rotation direction generated in the chassis 12 by switching the rotation direction of the steering motor 19 by the control device 21. Therefore, the traveling toy 1 can easily and reliably operate the traveling direction of the chassis 12 without using a complicated mechanism such as a link mechanism or a rack and pinion mechanism.
Further, the steering motor 19 of the traveling toy 1 is a rotary motor similar to the drive motor 18.

For this reason, the traveling toy 1 can be manufactured at low cost, and the chassis 12 can be yaw-rotated by forward / reverse rotation control of the steering motor 19 even when the drive motor 18 is not driven, for example. Since it can be generated, the orientation of the chassis 12 can be easily changed even in a narrow space.

Further, in this traveling toy 1, since the eccentric weight 24 is disposed at a position shifted forward from the yaw center Y of the chassis 12, the turning force can be applied to the chassis 12 efficiently and reliably.

Furthermore, in this traveling toy 1, an eccentric weight 24 is installed in the vicinity of the upper portion of the axle 10 on the front wheel Wf side. Therefore, the vibration due to the eccentric weight 24 is efficiently transmitted to the axle 10 on the front wheel Wf side, and the front wheel Wf attached to the end of the axle 10 can be easily moved sideways with respect to the ground plane. Thereby, the turning performance of the vehicle body can be further enhanced.

FIG. 6 shows the second embodiment and corresponds to FIG. 2 of the first embodiment.
In the second embodiment, the basic configuration of the traveling toy is substantially the same as that of the first embodiment, but the front and rear wheels Wf and the rear wheels Wr have covering bands (infinite tracks) 30L and 30R, respectively. The difference is that it is worn and worn.

In the traveling toy of this embodiment, the driving force of the rear wheel Wr transmitted from the drive motor 18 is equally transmitted to the left and

right cover belts

30L, 30R, and the ground contact surfaces of the

cover belts

30L, 30R continuously move back and forth. By doing so, the chassis 12 is moved back and forth. In a traveling toy that travels by the rotation of the covering

bands

30L and 30R, the orientation of the chassis 12 is usually changed by giving the left and right covering

bands

30L and 30R different rotation speeds. However, in the traveling toy of this embodiment, a force is intermittently applied by the steering motor 19 and the eccentric weight 24 to cause the chassis 12 to turn in the vehicle width direction, thereby causing the chassis 12 to yaw. Therefore, the orientation of the chassis 12 can be easily and reliably changed without giving the left and right covering

bands

30L and 30R different rotational speeds.

Therefore, the traveling toy according to this embodiment does not require a mechanism for separately changing the rotational speeds of the left and right cover strips 30L and 30R for turning, and thus can reduce the manufacturing cost.

The present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the invention. For example, in each of the above embodiments, the drive motor is connected to the rear axle, and the steering motor and the eccentric weight are installed on the front side of the chassis. Conversely, the drive motor is connected to the front axle. The steering motor and the eccentric weight can be installed on the rear side of the chassis. It is also possible to arrange the steering motor and the eccentric weight together with the drive motor on either the front side or the rear side of the chassis.

The present invention relates to a traveling toy provided with a driving device for traveling and a steering device for operating the traveling direction. According to the traveling toy of the present invention, it is possible to reduce the manufacturing cost and improve the turning performance.

1 ... running toys,
10, 11 ... axle,
12 ... Chassis,
18 ... Drive motor (drive device),
19: Steering motor (rotary motor),
19a ... rotating shaft,
21 ... Control device,
24 ... Eccentric weight,
25 ... steering device,
30L, 30R ... Covering band

Claims

The chassis,
Wheels disposed on the left and right of the front and rear of the chassis, and rotatably supported by the chassis;
Provided in the chassis, and includes at least one of the left and right wheel steering devices;
The steering device includes a rotation motor disposed at a center of the chassis in a vehicle width direction so that a rotation shaft extends along a vehicle longitudinal direction, an eccentric weight attached to the rotation shaft, and a rotation direction of the rotation motor. A control device for controlling,
The eccentric weight is a traveling toy arranged at a front portion or a rear portion of the chassis.
The traveling toy according to claim 1, wherein the eccentric weight is disposed on either the front side or the rear side of the yaw center of the chassis.
The traveling toy according to claim 1 or 2, wherein the eccentric weight is disposed in the vicinity of an upper portion of an axis connecting one of the front and rear left and right wheels of the chassis.
The traveling toy according to any one of claims 1 to 3, wherein a covering band is placed around the left and right front wheels and the right front and rear wheels of the chassis.