JP2516376Y2 - Traveling toys - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling toy in which left and right drive wheels are driven via a differential gear.

[0002]

2. Description of the Related Art In a traveling toy, if the left and right drive wheels are rotated at the same number of revolutions, there is no problem when traveling straight ahead.
When approaching a curve, there is a difference in the course on the left and right circumferences, so the inner drive wheel slips and the way it bends becomes unnatural. Therefore, in order to automatically increase the number of rotations of the outer drive wheels by the amount of the resistance of the inner drive wheels generated by the curve so that the curve can be smoothly turned, a running toy that incorporates the same differential gear as in an actual car is installed. Has been figured out.

[0003]

[Problems to be Solved by the Invention] However, when the differential gear is incorporated into a car toy,
The following new problems arose.

For example, in an actual automobile, the danger of derailing is extremely small, but since the body of the toy car is small,
There is a risk of derailing even if there is a slight difference in ups and downs. In this case, in an automobile toy incorporating a differential gear, the rotational speed of the drive wheel on the side where road surface resistance does not act (drive wheel on the derailing side) increases, and the rotational speed of the drive wheel on the ground side becomes 0. There is a problem that you cannot get out of the derailed state by yourself. As a result, every time the player removes a wheel, the player has to run to the running toy body to get the running toy body out of the wheeled state. It was not inconvenient to run the main body.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a traveling toy in which the derailed state can be removed by itself.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a traveling toy in which the left and right drive wheels provided in the main body of the traveling toy are driven through differential gears, and each side gear in the differential gear has a drive wheel attached thereto. The left and right drive shafts connected to each other are capable of seesaw operation in the vertical direction with respect to the traveling toy body, and the ring gear constantly meshes with a drive gear that applies rotational power to the ring gear of the differential gear. As described above, the differential gear and the drive gear are arranged, a shaft is arranged near the left and right drive shafts, and further, this shaft and the left and right drive shafts are separated from each other during the seesaw operation. An emergency gear train for selectively forcibly rotating one of the drive shafts is provided.

[0007]

According to the above-mentioned means, since the differential gear is provided, both drive wheels rotate together when traveling straight, and the drive force of the outer drive wheel automatically increases by the resistance of the inner drive wheel when turning. You can turn the curve smoothly. In addition, when one drive wheel is not grounded due to wheel removal or the like, the emergency gear train operates, one of the drive shafts is forced to rotate, and the drive wheel attached to the drive shaft rotates. Meanwhile, the other drive wheel also rotates through the differential gear. As a result, the derailed state can be reliably removed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A traveling toy according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the appearance of a traveling toy according to the present invention. Reference numeral 1 indicates the whole traveling toy,
This traveling toy 1 is a traveling toy main body (hereinafter referred to as a dump truck) having a controller 2 for transmitting a control signal and a receiver 19 (see FIG. 8) having the appearance of a dump truck and controlled by the control signal from the controller 2. 3) and 3. Then, in this traveling toy 1, the switch SW of the dump truck 3 is turned on.
When the traveling button 5 is pressed after N, the dump truck 3 goes straight. In this case, if the lever 6 is tilted forward,
The dump truck 3 moves forward, and when the lever 6 is tilted rearward, the dump truck 3 moves backward. Further, when the handle 7 is turned to the left or right during the traveling, the dump truck 3 turns to the left or right accordingly. If the steering wheel 7 is turned while the travel button 5 is not pressed, the front wheels 4,
4 is cut. When the lever 8 of the roof 3a of the dump truck 3 is operated, the loading platform 9 is automatically lifted.

Next, details of the traveling toy 1 will be described.

First, the circuit of the controller 2 is shown in FIG.
In the following description, the controller 2 transmits the control signal output from the integrated circuit IC1 and the integrated circuit IC1 as a control circuit for controlling the forward, backward, left turn and right turn of the dump truck 3. Transmission circuit TX1
It consists of and.

A handlebar switch S7 is connected to the input terminals 3 and 5 of the IC 1 so that the front wheels 4 and 4 of the dump truck 3 are turned left or right.
When the handle switch S7 is operated by the handle 7, a ground signal is input to the input terminal 3 or 5, the ground side of the battery BAT1 is grounded, and the controller 2 starts operating. A switch S6 for forward / backward switching is connected to the input terminals 11 and 10,
When the switch S6 is switched to the forward or backward side by the lever 6, the earth signal is input to the input terminal 11 or 10. Further, the travel button 5 is connected between the negative side of the battery BAT1 and the ground, and when the travel button 5 is pressed, the negative side of the battery BAT1 is grounded,
The controller starts operating. That is, the controller 2 operates only when the handlebar switch 7 or the travel button 5 is operated, and at that time, the integrated circuit IC1 is
The pulse control signal corresponding to the signal input to the input terminals 3, 5, 10, 11 is transmitted from the “OUT” terminal to the transmission circuit TX1.
Output to. The pulse control signal is composed of a start bit signal and a control bit signal. Specifically, a control including a start bit signal composed of a high-level signal of a predetermined time length (for example, 3 mSec) (hereinafter, referred to as “H” signal ”) and an“ H ”signal having the same time length. The interval time with the bit signal is set to a length corresponding to a control item such as forward movement.

The transmission circuit TX1 includes a crystal oscillation circuit including a transistor Q1 and a crystal X1, a modulation circuit including a transistor Q2, capacitors C1 to C3, a coil L1,
It is composed of a BPF (band pass filter) composed of L2. Of these, the crystal oscillator circuit oscillates a carrier of 27 MHz, and its output signal is always input to the base of the transistor Q2. Further, the modulation circuit is configured such that the transistor Q2 is turned on by a pulse signal input from the terminal "OUT" of the integrated circuit IC1 to the base of the transistor Q2. That is, only when the pulse signal is "H", the transistor Q2 outputs the carrier wave output from the crystal oscillating circuit to the BPF. Then, the carrier wave is transmitted from the antenna ANT1 to the receiver 19 through the BPF.

Next, the circuit of the receiver 19 will be described. The receiver 19 includes a receiving circuit RX1 including a transistor Q11 and the like, and a motor control circuit CONT1 including an integrated circuit IC11 and transistors Q12 to Q22 and the like.
It consists of and. When the switch SW is turned on, the receiver 19 lights the LED to indicate that the receiver 19 is in the use mode, and at the same time, power is supplied to the receiving circuit RX1 and the motor control circuit CONT1 to start the operation.

The receiving circuit RX1 demodulates the transmission wave input from the antenna ANT11 into a pulse signal by a super regenerative receiving circuit composed of a transistor Q11, capacitors C11 to C16 and coils L11 and L12, and a resistor R11 and a capacitor C17. To the input terminal 2 of the integrated circuit IC11 of the motor control circuit CONT1.

The integrated circuit IC11, after amplifying and shaping the input pulse signal, separates it into a start bit signal and a control bit signal, and incorporates a pulse controller circuit based on the interval time between the two separated signals. And the decoder circuit decodes the pulse signal. The integrated circuit IC11 is a built-in output controller circuit,
A predetermined control signal is output based on the decoded signal.
Specifically, from forward terminal "FORWARD", forward backward from terminal "BACKWARD", left turn from terminal "LEFT", right turn from terminal "RIGHT" Each outputs a low-level signal (hereinafter referred to as "L signal"). In addition,
These "L" signals are output only while the corresponding switch is being pressed by the controller 2.

In this case, when the "L" signal is output from the terminal "FORWARD", the transistors Q19 to Q2 are output.
When 1 becomes the ON state, the motor M1 is driven in the normal direction, and the "L" signal is output from the terminal "BACKWARD",
Transistors Q17, Q18 and Q22 are turned on to drive motor M1 in reverse.

On the other hand, when the "L" signal is output from the terminal "LEFT", the transistors Q14 and Q15 are turned on, the motor M2 is driven in the forward direction, and the terminal "RIGH" is driven.
When the "L" signal is output from "T", the transistor Q1
3, Q16 is turned on to drive the motor M2 in reverse.

Next, the dump truck 3 will be described. In this dump truck 3, as shown in FIG. 4, the rear wheels 10, 10 are driving wheels.
0 and 10 are attached to the drive shafts 11 and 11. The two drive shafts 11, 11 and thus the rear wheels 10, 10 are connected by a differential gear 12 provided therebetween. As shown in FIG. 5, the differential gear 12 includes a ring gear 14 that constitutes an input gear and a side gear 1 that constitutes a sun gear connected to the drive shafts 11 and 11.
3, 13 and planetary pinions 15, 15 that mesh with the side gears 13, 13. In this differential gear 12, when the ring gear 14 rotates in the case of going straight (forward or backward),
The planetary pinion 15, 15 does not rotate and the side gear 13,
13 revolves around 13 and as a result, each drive shaft shaft 11, 1
1 rotates at a constant speed. On the other hand, in the case of a curve, since the road resistance on the inner rear wheel 10 is larger than that on the outer drive wheel 11, the planetary pinions 15 and 15 are connected to the side gear 1.
Revolving around 3, 13 while revolving around, and each drive shaft 1
1 and 11 rotate at different rotation speeds. Specifically, the rotation speed of the inner drive shaft 11 is lower than that during straight travel, and the rotation speed of the outer drive shaft 11 is greater than that during straight travel. As a result, the dump truck 3 can smoothly travel on a curve.

The differential gear 12 is housed in a gear box 16. Also, the drive shafts 11, 11
Are shafts 16a, 1 projecting from the front and rear surfaces of the gearbox 16.
A seesaw operation can be performed up and down with respect to the dump truck 3 around the 6a. The fulcrum of the seesaw operation in this case, that is, the shafts 16a, 16a
Is the center position in the width direction. An opening 17a for exposing a part of the ring gear 14 is formed in the lid 17 placed on the gear box 16.

Next, the drive mechanism for driving the differential gear 12 will be described.
The rotational power of No. 1 is transmitted to the shaft 21 through the gears 20a, 20b, 20c, 20d. The shaft 21 is rotatably supported in the axial direction, and gears 20e and 20f are attached to the shaft 21 in addition to the gear 20d. Further, a shaft 22 arranged in parallel with the shaft 21 is provided with a gear 20g capable of meshing with the gear 20a and a gear 20h capable of meshing with the gear 20f. This gear 20
g and 20h are integrally configured, and the gear 20a and the gear 20
The engagement with g and the engagement between the gear 20f and the gear 20h are selectively performed. Then, the rotational power transmitted to the shaft 21 is transmitted to the drive gear 20i attached to the shaft 22 through one of the paths of the gear 20e, the gear 20g or the gears 20f, 20h, and further from the drive gear 20i. It is transmitted to the ring gear 14 of the differential gear 12. Here, the drive gear 20i is attached to the shaft 22 so as to be able to idle, and the action of the spring 23 causes the gear 20 to pass through the surface clutch 24.
It is pressed against g, and by this pressing the gears 20g, 2
It can rotate together with 0h. The surface clutch 24 between the gears 20g and 20g is of a type in which the concavities and convexities on the opposite surface are fitted, and the gear 20 is normally
The gears 20g and 20h are disengaged from the gears 20i when the rear wheels 10 and 10 are subjected to an excessive load, for example, by transmitting the rotational power of g and 20h to the drive gear 20i side. Work like.

Further, emergency gear trains 30, 30 are provided on the drive shafts 11, 11 and the shaft 22, respectively. The gear trains 30, 30 are composed of gears 30 a, 30 a attached to both ends of the shaft 22, and gears 30 b, 30 b attached to both ends of the differential gear 12 of the drive shaft 11, respectively. As shown in FIG. 6, in the gear trains 30, 30, the gears 30 are not used when traveling on a level ground.
The gears 30a and 30a and the gears 30b and 30b are not in mesh with each other, and when one side is de-wheeled and the drive shafts 11 and 11 perform a seesaw operation, the gear 30b on the upward side meshes with the gear 30a. The gear 30a is fixed to the shaft 22, and the gear 20a
Since they are rotated by the rotational power of g and 20h, the differential gear 12 has two input systems, that is, the drive gear 20i and the gear 30a.
In this case, the input from the gear 30a is set to be lower than the rotation speed of the drive shaft 11 when the drive shaft 11 travels straight. Even when the drive shafts 11, 11 perform the seesaw operation, the drive gear 2
0i and the ring gear 14 are kept in mesh with each other,
In this embodiment, the ring gear 14 is in a bulged state.

Next, the transmission mechanism incorporated in this drive mechanism will be described. This transmission mechanism has gears 20e, 20 attached to a shaft 21.
f and shafts 20g and 20h attached to the shaft 22, and by moving the shaft 21 in the axial direction by the slide switch 40, the gear 20e and the gear 20
The engagement with g and the engagement between the gear 20f and the gear 20h are selectively performed. That is, the lever 41 is swung about the shaft 42 by the left and right movements of the slide switch 40, and the lever 44 is swung about the shaft 42 through the torsion coil spring 43.
By moving the gear 20d sandwiched by the fork 44a attached to the tip of the No. 4 left and right, the gear 20a and the gear 20g and the gear 20f and the gear 20h can be selectively engaged. ing. Here, an elastic claw 40a is formed on the upper portion of the slide switch 40, and the elastic claw 40a fits into a recess (not shown) of the dump truck 3 at each of the meshing positions so that each meshing position can be maintained. It has become. Also, the engagement of the levers 41 and 44 is
This is done by hooking each end of the torsion coil spring 43 wound around the shaft 42 to each end of the standing portions 41a and 44b of the levers 41 and 44. The main switch SW2 of the dump truck 3 is turned on and off by the operation of the slide switch 40. That is, the lever 41 is provided with a pressing protrusion 41b, and the pressing switch 41b turns on and off the main switch SW2 attached on the mechanism box 45.

Next, the steering mechanism for the front wheels 4 and 4 will be described.

As shown in FIG. 8, the rotational power of the motor M2 is generated by the gears 50a, 50b, 50c, 50d, 50e and 50.
The front wheels 4, 4 are steered by being transmitted to the link 51 via f, 50g, 50h, and transmitting power from the link 51 to the four-node rotary chain 52. Here, the motor M2 and the gears 50a, 50b, 50c, 50d, 50
e, 50f, 50g, and 50h are housed in the mechanism box 55. Further, a surface clutch 53 is interposed between the gear 50f and the gear 50g. That is, gear 50g
Is attached to the shaft 54 so as to rotate freely, and the spring 56
Is pressed against the gear 50f via the surface clutch 53. Then, by this pressing, the gear 5
0f and 50g can rotate integrally.
In this case, the surface clutch 53 is of a type in which the concavities and convexities on the opposing surface are fitted together, and normally serves to transmit the rotational power of the gear 50f to the gear 50g side, so that, for example, an excessive load is applied to the front wheels 4 and 4. The gear 50f and the gear 50
acts to release engagement with g. The driving link 57 that constitutes the four-bar rotary chain 52 has a long hole 57a formed in the center thereof and extending in the longitudinal direction of the dump truck 3, and the pin 51a of the link 51 is fitted into the long hole 57a. , Furthermore, holes 57b, 57b are formed at both ends,
Pins 58a, 58a of shaft members 58, 58 for supporting the front wheels 4, 4 are fitted into the holes 57b, 57b (see FIG. 9). With the above configuration, the front wheels 4 and 4 are steered by the forward and reverse rotations of the motor M2.

In FIGS. 3, 8 and 10, reference numeral S10 (see FIG. 10) is a steering center switch for causing the dump truck 3 to travel straight.
When the front wheels 4 and 4 are turned left and right, the switch S10
The contact point d is connected to the fixed side contact a or c by the movable contact piece e which is integrally rotated with the gear 50h. A steering center set circuit is configured by the steering center switch S10 and the transistor Q12 shown in FIG. In this steering center set circuit, when the steering wheel 7 is returned after the steering wheel control for the left turn or the right turn is performed on the controller 2 side, or immediately after the switch SW of the receiver 19 is turned on, the front wheels 4, 4 turn left or right. This is a circuit for setting the direction of the front wheels 4 and 4 to the straight traveling state when in the turn state. Specifically, this circuit
When the contact d of the switch S10 is connected to the contact a or c, the base current of the transistor Q13 or Q14 is caused to flow through the diode D2 and the resistor R12, and the transistor Q13 or Q14 is turned on.
A state in which the contact point d is not connected to any of the contact points a and b (that is, a state in which the contact point d and the contact point b are connected in FIG. 3, and both ends of the movable contact piece e in FIG. The motor M2 is driven in the normal direction or the reverse direction until one of the positions (shown) is located in the gap b between the contacts a and c), that is, until the front wheels 4, 4 of the dump truck 3 are in the straight traveling state. The front wheels 4 and 4 are in a straight traveling state, or the terminals "LEFT" or "R" of the integrated circuit 11 are connected.
When the "L" signal is output from "IGHT", the base currents of the transistors Q13 and Q14 do not flow, so the motor M2 is stopped.

The traveling toy 1 of the embodiment thus configured
According to this, the following effects can be obtained.

According to the embodiment, the differential gear 1
Because it has two, the rear wheel 1 when moving forward or backward
Nos. 0 and 10 rotate together, and at the time of a curve, the driving force of the outer drive wheel is automatically increased by the resistance of the inner drive wheel to smoothly bend the curve. Further, in a state where wheel removal occurs and one drive wheel is not grounded, one of the drive shafts 11 and 11 is forcibly rotated by the emergency gear train 30 and the drive attached to the drive shaft. The wheel 11 rotates. On the other hand, the other drive wheel 11 also rotates via the differential gear 12. As a result, the derailed state can be reliably removed.

Although the embodiment made by the present inventor has been described above, it is needless to say that the present invention is not limited to this embodiment and various modifications can be made without departing from the gist thereof. Absent.

For example, in the above embodiment, the drive gear 2
Although the emergency gear trains 30 and 30 are provided between the shaft 22 to which 0i is attached and the drive shafts 11 and 11, the emergency gear trains are provided between the drive shafts 11 and 11 and the drive gear 20i and another shaft. Row 3
0 and 30 may be provided.

Further, in the above-mentioned embodiment, the case where the present invention is applied to the remote-controlled automobile toy is explained, but it is applicable to all remote-controlled or self-propelled figure toys.

[0032]

As described above, according to the present invention, in the traveling toy in which the left and right driving wheels provided in the traveling toy main body are driven through the differential gears, each driving wheel is attached to each of the differential gears. The left and right drive shafts connected to the side gears are capable of seesaw operation in the vertical direction with respect to the traveling toy main body, and the ring gear is constantly used as a drive gear that imparts rotational power to the ring gear of the differential gear. The differential gear and the drive gear are arranged so as to mesh with each other, a shaft is arranged near the left and right drive shafts, and the shaft and the left and right drive shafts are arranged at the time of a seesaw operation. Since an emergency gear train that selectively and forcibly rotates one of the left and right drive shafts is provided, it is possible to remove the derailed state by itself. Kill.

[Brief description of drawings]

FIG. 1 is a perspective view of the appearance of a traveling toy according to an embodiment.

FIG. 2 is a circuit diagram of a controller of the traveling toy according to the embodiment.

FIG. 3 is a circuit diagram of a receiver of the traveling toy according to the embodiment.

FIG. 4 is an exploded perspective view of a rear wheel drive mechanism of the traveling toy according to the embodiment.

FIG. 5 is a vertical cross-sectional view of the differential gear of the traveling toy of the embodiment.

FIG. 6 is a diagram showing a meshing state of gears of a rear wheel drive mechanism of the traveling toy according to the embodiment.

FIG. 7 is a diagram showing a transmission mechanism of the traveling toy of the embodiment.

FIG. 8 is an exploded perspective view of a front wheel steering mechanism of the traveling toy of the embodiment.

FIG. 9 is a plan view around a front wheel of the traveling toy of the embodiment.

FIG. 10 is a plan view of a steering center switch of the traveling toy of the embodiment.

[Explanation of symbols]

 1 Running Toy 3 Dump Truck (Running Toy Main Body) 10,10 Rear Wheel (Drive Wheel) 11,11 Drive Shaft 12 Differential Gear 13,13 Side Gear 14 Ring Gear 20i Drive Gear 22 Shaft 30 Emergency Gear Train

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display area A63H 30/04 A63H 30/04 A

Claims (1)

(57) [Scope of utility model registration request] 1. In a traveling toy in which left and right drive wheels provided in a traveling toy main body are driven through differential gears, the left and right drive shafts each provided with a drive wheel and connected to respective side gears in the differential gear are The differential gear and the drive are configured to be capable of seesaw operation in the vertical direction with respect to the traveling toy body, and to be constantly meshed with a drive gear that applies rotational power to the ring gear of the differential gear. A gear is provided, a shaft is provided near the left and right drive shafts, and one of the left and right drive shafts is selectively provided between this shaft and the left and right drive shafts during seesaw operation. A traveling toy characterized by being provided with an emergency gear train for forced rotation.