JPH041993Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a radio-controlled traveling toy in which the speed of a traveling object can be freely changed by radio control.

(Prior Art) Conventionally, a variable resistor has been installed between the drive power source of a running object and the drive motor, and its resistance value changes in conjunction with the operation of the servo motor, thereby changing the voltage applied to the drive motor. A method is provided in which the rotational speed of the drive motor is changed by changing the resistance value of the variable resistor by sending pulses from a transmitter, thereby changing the speed of the traveling body. The radio-controlled running toy that was adopted was known.

(Problem that the invention aims to solve) However, in the conventional radio-controlled running toy mentioned above, a servo motor was used to change the resistance value of the variable resistor, so the mechanism for changing the speed was complicated. And it became a big thing,
Because of the need to incorporate the servo motor, there were problems in that the running body could not be made very small and the cost was high.

This idea was made to solve the above problems, and it is a radio-controlled running toy that has a simple configuration using electronic circuits, does not take up much storage space, and can freely change the running speed of the running object. The purpose is to provide

(Means for Solving the Problems) In order to solve the above problems, the radio-controlled running toy according to the invention includes a radio control transmitter and a receiver for receiving running speed control commands from the transmitter. and a traveling body having a driving means for changing the driving speed for traveling according to the received output of the receiver, and the transmitter converts the traveling speed control command into a pulse number signal and transmits the signal to a radio frequency. The receiver integrates the received and demodulated signal using an integrating circuit, and controls the drive speed of the drive motor according to the magnitude of the integrated value.

(Function) With the above configuration, the transmitter converts the travel speed control command into a pulse number signal to the traveling body in a traveling state using an electronic circuit that is simple and does not take up much storage space. When a signal is modulated into a radio frequency and transmitted, a receiver on the vehicle receives and demodulates the signal, integrates the signal using an integrating circuit, and controls the drive speed of the drive motor according to the magnitude of the integrated value. This also controls the traveling speed of the traveling body.

(Example) What is shown in FIG. 1 is a radio-controlled running toy 1 according to an embodiment of this invention, an endless running track member 1 having a running track 10 formed on the upper surface.
0, a radio control transmitter 20 that converts a traveling speed control signal into a pulse number signal, modulates the signal into a radio frequency, and transmits it, a power source 60 for traveling, a receiver 40 for traveling speed control, and a motor. The running body 30 is equipped with a drive motor 50 such as (FIG. 3) and runs on the running track 10a in response to a running speed control command from the transmitter 20.

A part of the track member 10 serves as a pit station 100.

The running track member 10 can be made of a highly flexible and soft material such as polyvinyl chloride and can be integrally molded.
It can be folded and stored, and it is also possible to have a configuration in which a plurality of running track member elements (the running track member 10 is divided into appropriate lengths, not shown) are connected in the longitudinal direction, By doing so, it is possible to separate and store each traveling track member element.

In addition, the curved portion 10b of the running track member 10 is supported by struts 11 of different heights so that the inner circumferential side is lower and the outer circumferential side is higher. It is prevented from falling off from the running track member 10 due to centrifugal force.

The running track 10a of the running track member 10 is a two-lane road 12, 13 (the number of lanes may be any number).
Figure 2 shows the running track member 1 in Figure 1.
As shown in an enlarged view of a part of 0, the running track 10a
Both shoulder portions 10c, 10c and center separator portion 10d
protrudes upward in the form of a rib to prevent the traveling body 30 from falling off the traveling track 10a or invading other lanes of the road.

A guide groove 15 is formed on the center line of each lane road 12, 13 as a guide portion 14 that guides the traveling body 30 along each lane road 12, 13. A guided portion 3 shown in FIG.
The shaft protrusion 31a as 1 is fitted into the shaft projection 31a, and the traveling body 30 is connected to each lane road 12, 1.
It is now possible to drive along 3.

On the other hand, as shown in FIG. 3, the traveling body 30 includes rotatable driven wheels (front wheels) 32, 32, and a receiver 40 that captures the signal from the transmitter 20 (as shown in the block diagram in FIG. 6). ), a drive motor 50 that operates in response to the output of the receiver 40, drive wheels (rear wheels) 33, 33 driven by the motor 50, and the receiver The apparatus includes batteries 60a (two rechargeable batteries in this embodiment) as a power source 60 for supplying electricity to the machine 40 and the motor 50.

Although it is better to provide the driven wheels (front wheels) 32, 32 so that they can change direction freely, the traveling track 10a in the curved portion 10b is inclined so as to become higher toward the outer circumference as described above, In addition, since the shaft protrusion 31a (FIG. 9) at the lower part of the traveling body 30 is guided by the guide groove 15 and forced to travel in the curved portion 10b, it is not necessary to provide a steering mechanism that can freely change direction. There is no need to employ it, and if the steering mechanism is omitted, the configuration of the traveling body 30 can be simplified accordingly.

The receiver 40 also includes a reproducing section 42 that demodulates and reproduces the signal from the transmitter 20 received from the receiving antenna 41, as shown in a block diagram in FIG. 6 and as a circuit diagram in FIG. An amplifying section 43 that amplifies the signal reproduced by the reproducing section 42, an integrating circuit 44 that integrates the pulse signal amplified and sent by the amplifying section 43, and an average of the signal voltages integrated by the integrating circuit 44. It is comprised of a motor driver 45 that operates the drive motor 50 at a rotational speed proportional to the voltage, and electricity is supplied from the power source 60 to each of these parts.

Note that the drive wheels 33, 33 are provided by a gear mechanism 70.
(Fig. 3), power is supplied from the motor 50 to enable high-speed running.

On the other hand, the radio control transmitter 20
As shown as a block diagram in FIG. 5 and as a circuit diagram in FIG. 7, the pulse generator 21 and the pulse generator 21 are capable of freely changing the number of pulse signals generated per unit time by external operation. The transmitter 22 includes a transmitter 22 that modulates the pulse signal oscillated by the transmitter 21 into a radio frequency and transmits the modulated pulse signal.

The transmitter 20 is pistol-shaped, as shown in FIG. 4 as a partially cutaway exterior, and is powered by an internal power source (not shown) by sliding a switch 25 that is slidably installed at the top. is on/
In addition, the trigger part 2
By tightening and releasing 6, the resistance value of the variable resistor 23 for changing the oscillation frequency of the pulse generator 21 can be changed, thereby changing the number of pulse signals generated per unit time. I'm starting to feel like I'm being forced to do that.

By causing the receiver 40 of the traveling body 30 to receive a pulse signal from the transmitter 20 configured as described above, the traveling body 30 can be made to travel, and the unit can be activated by operating the trigger section 26. By changing the number of pulse signals transmitted per time, the rotational speed of the drive motor 50 can be controlled, and thus the traveling speed of the traveling body 30 can be freely changed.

In other words, when the force of gripping the trigger part 26 is relaxed, the spring 27 returns the trigger part 26 to the protruding direction, and the resistance value of the variable resistor 23 for changing the oscillation frequency of the pulse generator 21 changes accordingly. getting smaller,
The number of pulse signal oscillations per unit time decreases, and the integrated value of the voltage by the integrating circuit 44 of the receiver 40 that receives this decreases, and the rotational speed of the drive wheels 33, 33 by the motor 50 decreases, causing the running. The running speed of the body 30 becomes low. Conversely, if you tighten your grip on the trigger part 26, the trigger part 26 will resist the force of the spring 27.
6 is rotated in the retracting direction, and accordingly, the variable resistor 23 for changing the oscillation frequency of the pulse generator 21
As the resistance value increases, the number of pulse signal oscillations per unit time increases, and the receiver 40 that receives this increases.
As the integrated value of the voltage by the integrating circuit 44 increases, the rotational speed of the drive wheels 33, 33 by the motor 50 increases, and the traveling speed of the traveling body 30 increases.

In this way, the transmitter 20 allows the number of pulse signal oscillations per unit time to be controlled by external operation, and the voltage that changes depending on the pulse signal per unit time transmitted from the transmitter 20. The traveling speed of the traveling body 30 can be changed by the receiver 40, which rotates the driving wheels 33, 33 via the motor 50, which rotates at a rotational speed proportional to the average voltage value. After stopping the traveling body (radio control car) 30 at The traveling speed of the traveling body 30 can be changed just by operating the machine 20 side.

In addition, because it is necessary to make the traveling body 30 as small as possible, the parts are not equipped with a steering mechanism that automatically changes direction by radio control, which is normally used in the traveling body (radio-controlled car) 30, etc. The number of points is small and the mechanism is simple, and each electronic component forming the receiver 40 is made as small as possible. In particular, the tuning resonant circuit 46 (FIG. 8) that constitutes the reproducing section 42
The variable inductance coil 47 inside is made as small as possible. By the way, the size of the conventional variable inductance coil is approximately 7mm x 7mm.
The size was approximately 11.5 mm (length x width x height), but in the embodiment of this invention, it was 5 mm x 5 mm x 5.5 mm.
It was made as small as about mm.

Further, the pit station 100 is constructed as follows.

As shown in FIG. 1, the pit-in stations 100 are provided in a shape that protrudes approximately symmetrically on the inside and outside of the running track 10a, and the pit-in station 100 on one side (inside) has a pit-in-house shape. A battery box 150 is installed,
A battery 151 is housed therein as a primary power source for charging.

The driving lane roads 12 and 13 on the pit installation 100 have a straight section 12a and a straight section 12a.
A pit-in lane section 12b is formed by branching into a Y-shape at the entrance and merging into a Y-shape at the exit. At the branching part 110 (entrance) and merging part 130 (exit) between the straight lane section 12a and the pit-in lane section 12b,
Branching the traveling body 30 into a straight direction and a pit-in direction,
A guide groove 15 is provided to branch and merge in a Y-shape.

A course regulating protrusion 120 is fixedly provided in the guide groove 15 of the branch portion 110. This course regulating protrusion 120 is connected to the branch point 111 (branch part 1
The first guide strip 121 is arranged in the guide groove 15 a little before the center point of 10) and the guide strip 121 is arranged in a V-shape from the middle of the guide groove 15 at the branching point to the guide grooves 15, 15 beyond the guide groove 15. A second guide strip 122 is provided.

The first guide strip 121 is the guide groove 1
It has approximately the same width as 5, and is low on the front side and gently slopes to become higher as it goes forward, the top part 121a beyond that becomes flat, and the end part beyond that becomes lower as it goes forward. Steep slope and junction 111
It is cut off in front of.

Further, the second guide strip 122 is composed of a first branch portion 122a located in the guide groove 15 for straight running and a second branch portion 122b located in the guide groove 15 for pit-in. . The first branch portion 122a is the guide groove 1 for straight traveling.
5, the top portion 122c at the front thereof is approximately the same height as the top portion 121a of the first guide strip 121, and the further it goes, the lower it becomes. On the other hand, the second branch portion 122b is
The shaft protrusion 31a of the traveling body 30 is arranged along the end of the pit-in guide groove 15 (the end near the direction of the straight-travel guide groove 15), and the shaft protrusion 31a of the traveling body 30
There is enough space for 5 people to pass through. The second branch portion 122b has an inclined portion 1 at its terminal end.
Except for 22d, the height is approximately the same as the height of the top portion 122a of the first branch portion 122a.

Due to the presence of the course regulating protrusion 120 configured in this way, when the traveling body 30 attempts to pass through the branching part 110 from the front direction of the branching part 110 at high speed, the shaft protrusion as the guided part 31 of the traveling body 30 3
The traveling body 30 at that time when the lower end portion of the first guide strip 121 slides up on the inclined portion 121b on the front side of the first guide strip 121.
Due to the inertial force of the shaft protrusion 31a, the first guide strip 12
The second guide strip 12 is separated from the top portion 121a of the first guide strip 12.
Since the vehicle lands on the top portion 122c or the slope portion 122e of the first branch portion 122a of No. 2 and continues as it is, straight traveling is maintained regardless of the branch portion 110. On the other hand, when the traveling body 30 is about to pass through the branching part 110 at low speed, the lower end of the shaft protrusion 31a is connected to the inclined surface 12 on the front side of the first guide strip 121.
Even after climbing 1b, the inertial force acting on the traveling body 30 is small, so the vehicle does not leave the first guide strip 121 and slides down the slope 121c at the end thereof, and is unable to jump over the branch 110. , the second branch portion 122b of the second guide strip 122 in the pit-in guide groove 15 is guided along the side surface of the second branch portion 122b in the pit-in guide groove 15, and the course is changed toward the pit-in station 100.

A charging device 200 as described below is installed at the pit station 100 where the traveling body 30 is guided after changing its course.

A through hole 201 is formed in a part of the lower part of the guide groove 15, so that charging contacts 152 connected to both poles of the battery 151 in the battery box 150 are formed on both left and right sides of the guide groove 15 at the front. , 153 are provided protrudingly, and through holes 202, 203 are formed on both the left and right sides of the guide groove 15 further in front of the guide grooves 15.

On the other hand, on the bottom plate 210 attached to the lower side of the pit instation 100, there is a slide plate 220 which is slidable in the front and back direction and is given a return force in the backward direction (frontward direction) by a spring 211. is set up.

The rear side of this slide plate 220 (running body 30
A dogleg-shaped through hole 221 is provided in the center of the front (closer to the front in the direction of movement), and on both sides of the through hole 221, there are rack teeth 222a, 223a on the upper surface, respectively.
Rack members 222 and 223 are provided in a protruding manner, and a rotating shaft 230 is rotatably installed in a fixed position above the rack members 222 and 223. This rotating shaft 23
The above-mentioned rack teeth 222a, 223 are provided at both ends of the
Pinions 231, 232 that are always in mesh with a, and friction wheels 233, 234 that reach approximately the same height as the road surface of the running track 10a via the through holes 202, 203 are fixed. Further, on the bottom plate 210 at a position in front of the slide plate 220, a rotary member 240 is installed at its base so as to be freely rotatable about a pin 241. A pin 242 that is loosely inserted into the dogleg-shaped through hole 221 is vertically provided at the distal end of the rotating member 240, and a pin 242 that is loosely inserted into the dogleg-shaped through hole 221 is installed above the base. A stopper 243 is provided to protrude. When the slide plate 220 is returned to the rear (in the direction of arrow C) by the spring 211, the dogleg-shaped through hole 221
The part A meets the pin 242, and the rotating member 240 is rotated counterclockwise when looking down from above, and at this time, the stopper 243 is in the guide groove 1.
It is located in the top 5. On the other hand, when the slide plate 220 moves forward (in the direction of arrow D) against the force of the spring 211, the bottom part of the dogleg-shaped through hole 221 meets the pin 242, and the rotating member 24
0 rotates clockwise when looking down from above, and at this time, the stopper 243 that was protruding into the guide groove 15 through the through hole 201 comes out of the guide groove 15.

When the traveling body 30 reaches the pit instation 100 configured in this way, the shaft protrusion 31a of the traveling body 30 moves against the stopper 243 of the rotating member 240.
At this time, the driving wheels 33, 33 are riding on the friction wheels 233, 234, and the charged contact pieces 34, 35 of the traveling body 30 are on the traveling track 10a. Upper charging contact piece 1
52, 153 and are in contact with each other. When the travel command from the transmitter 20 is released in this state, the battery 60 in the traveling body 30 is charged by the contact between the contact pieces 152, 153-34, and 35.

Then, when the transmitter 2 is properly charged,
When a travel command is issued from 0, the drive wheels 33, 33 rotate, causing the friction wheels 233, 234 to rotate counterclockwise (in the direction of arrow H) in FIG. Then, the pinions 231 and 232 and the rack 222 that meshes with them
a, 223a, the slide plate 220 is advanced, and the dog-shaped through hole 2 moves accordingly.
21 and the pin 242, the rotating member 240 is rotated clockwise in FIG. 9, and the stopper 243 comes out of the guide groove 15. Then, the restraint of the shaft protrusion 31a of the traveling body 30 by the stopper 243 is released, and the traveling body 30 starts traveling forward and leaves the pit instation 100.

Since the radio-controlled running toy 1 according to this embodiment is configured as described above, the running body 30 is moved onto the running track 10a of the running track member 10 by fitting the shaft protrusion 31 into the guide groove 15. If the transmitter 20 is operated to send the traveling speed control signal, the traveling body 30 can be moved by operating one channel.
can be freely changed to either high-speed or low-speed state, especially pit in station 1
If you drive at low speed before the 00 branch 110,
The traveling body 30 moves to the pit-in lane section 1 as described above.
2b (FIG. 9), enters the pittoin station 100, is charged as described above, and then issues a run command from the transmitter 20 and leaves the pittoin station 100 again. be. However, if it is not desired to guide the traveling body 30 into the pit station 100, it is sufficient to allow the traveling body 30 to pass through the branch portion 110 at high speed.

(Effect of the invention) According to the radio-controlled traveling toy according to this invention, the traveling body is equipped with a receiver of a simple configuration using an electronic circuit, and the receiver is used to convert pulses from the radio-control transmitter into numbers. The system receives and demodulates the driving speed control command from the signal, integrates the command signal using an integrating circuit, and travels at a speed according to the magnitude of the integrated value, which eliminates the large and expensive conventional method. Even without using a servo motor,
The traveling speed of the traveling object can be freely changed by commands from the transmitter, and compared to the conventional radio-controlled traveling toy, the construction is significantly simpler and can be made smaller, reducing manufacturing costs.

[Brief explanation of the drawing]

Figures 1 to 10 show examples of this invention, of which Figure 1 is an overall perspective view of a radio-controlled toy, Figure 2 is a partial perspective view of a running track member, and Figure 3 is a running body. FIG. 4 is a partially cutaway perspective view of the transmitter, FIG. 5 is a block diagram of the transmitter, FIG. 6 is a block diagram of the receiver and other parts, and FIG. 7 is an exploded perspective view showing the internal mechanism of the transmitter. 8 is an electronic circuit diagram of the transmitter, FIG. 8 is an electronic circuit diagram of the receiver, FIG. 9 is an exploded perspective view of the pit station, and FIG. 10 is a plan view showing the entrance portion of the pit station. 1...Radio-controlled running toy, 20...
Transmitter, 30... Traveling object, 40... Receiver, 50
...Drive motor.

Claims (1)

[Scope of utility model registration request] It consists of a transmitter for radio control, a receiver that receives a traveling speed control command from the transmitter, and a traveling body that includes a drive means that changes the driving speed for traveling according to the received output of this receiver. , the transmitter converts the traveling speed control command into a signal converted into a pulse number, modulates the signal into a radio frequency, and transmits the signal, and the receiver integrates the received and demodulated signal using an integrating circuit and calculates the magnitude of the integrated value. A radio-controlled traveling toy, characterized in that the driving speed of the driving motor is controlled according to the driving speed.