JP3024793U - Radio controlled car - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a radio-controlled car that can make high-speed turns on the spot. In a radio controlled car equipped with a vehicle configured to move forward and turn by switching a rotation direction of a motor, a first drive wheel is fixedly provided at one end of a drive shaft of the vehicle and a second drive wheel is provided at the other end. Second drive wheels are respectively mounted so as to be idle, and a sun gear and a planetary planetary rotatable about the sun gear about the axis of the sun gear are provided in a gear mechanism for driving the second drive wheels. A gear is incorporated into the planetary gear, and the planetary gear selectively engages with two gears having different rotation directions in the subsequent stage in response to switching of the rotation direction of the motor. [Effect] A turn can be performed on the spot and a high-speed turn is possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a radio controlled car.

[0002]

[Prior art]

 Conventionally, as a radio controlled car, for example, the driving force of a motor capable of rotating in the forward and reverse directions provided in an automobile is transmitted to a drive wheel fixed to one end of a drive shaft and a drive wheel with a clutch provided to the other end of the drive shaft. When the vehicle is moving forward, both driving wheels are driven in the forward direction by connecting the clutch, and when the vehicle is turning, only one driving wheel is driven in the reverse direction by disengaging the clutch, and the other driving wheel is free. Things are known.

[0003]

[Problems to be solved by the device]

 However, in the case where a turn is made by rotating only one of the driving wheels in the opposite direction by disengaging the clutch in this way, the car will switch back at the time of the turn. Since the turn is unnatural and one of the driving wheels is in a free state, there is a problem that a high speed turn cannot be performed.

[0004] Therefore, conventionally, there has been an appearance of a radio controlled car capable of performing a high speed turn on the spot. The present invention has been made in view of such a demand.

[0005]

[Means for Solving the Problems]

 The radio controlled car according to claim 1 comprises a controller that transmits a digital control signal, and an automobile that is configured to move forward or turn by switching the rotation direction of the motor according to the digital control signal. In a radio car, a first drive wheel is fixedly attached to one end of a drive shaft of the automobile, and a second drive wheel is attached to the other end thereof so as to be idle, and a gear mechanism for driving the second drive wheel. A sun gear and a planetary gear that is rotatable around the sun gear about the axis of the sun gear are incorporated in the sun gear, and the planet gear is two gears that are different in rotational direction from the latter stage. In addition, the gears are selectively meshed in accordance with the switching of the rotation direction of the motor. The radio-controlled car according to claim 2 is the radio-controlled car according to claim 1, wherein the battery can be charged, while the controller is equipped with a charging circuit for charging the battery, and the charging jack is connected to the controller and the vehicle. It is attached to both sides.

[0006]

[Action]

 According to the above-mentioned means, at the time of turning, one driving wheel rotates normally (rotates in the forward direction) and the other driving wheel rotates in the reverse direction (rotates in the reverse direction), so that the turn can be performed on the spot. At the same time, high speed turns are possible. In addition, since the controller has a built-in charging circuit for charging the battery, it is not necessary to separately prepare a charger, and by attaching a charging jack to both the controller and the car, the battery can be charged each time it is charged. There is no need to remove it.

[0007]

【Example】

 Hereinafter, an embodiment of a radio controlled car according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an appearance of a radio controlled car which is an example of a radio controlled car. The radio controlled car 1 includes a controller 2 which transmits a digital control signal and a digital control signal which is received in accordance with the digital control signal. It is composed of a traveling automobile 3. The controller 2 is provided with a forward button S1 also serving as a charging button, a turn button S2 also serving as a charging button, a charging lamp LED 5, a transmission lamp LED 6 and a charging jack 4. A charging jack 6 and a power switch 7 are provided below the chassis 5 of the automobile 3, as shown in FIG.

In this radio controlled car 1, the power switch 7 on the lower side of the chassis 5 of the automobile 3 is turned off, and as shown in FIG. 3, the charging jack 6 on the lower side of the chassis 5 of the automobile 3 and the charging jack of the controller 2 are connected. By pressing any one of the forward button S1 and the turn button S2 of the controller 2 while setting 4 to be lightly pressed, a battery (not shown) mounted on the automobile 3 is charged. When the charging of the battery is completed in this way, the power switch 7 on the lower side of the chassis 5 of the automobile 3 is turned on. Then, when the forward button S1 of the controller 2 is pressed, the automobile 3 travels while wheeling forward as shown in FIG. On the other hand, when the turn button S2 is lightly tapped and pushed, the vehicle 3 turns counterclockwise on the spot as shown in FIG. Further, if the turn button S2 is continuously pressed, the automobile 3 starts the spear turn on the spot as shown in FIG. Further, when the forward turn button S1 is pushed after the spin turn, the automobile 3 runs in a wheelie so as to spread spirally as shown in FIG. In addition, in this radio controlled car 1, the beam light of the automobile 3 is turned on when the vehicle moves forward and turns.

Next, the configuration of the radio controlled car 1 will be described in detail.

FIG. 8 shows an internal circuit diagram of the controller 2, and the circuit of the controller 2 is composed of a transmission circuit and a charging circuit.

Of these, the transmission circuit will be described first. Q2, Q3, R6, R4, R5, R1, R2, C8 and C7 constitute an astable multivibrator. That is, pressing switch S2 produces a square wave pulse having an oscillation frequency determined by R6, R4 and C7 and R6, R5 and C8. When the switch S1 is pressed, a square wave pulse having an oscillation frequency determined by R4 and C7 and R5 and C8 is generated. Here, the collector of Q3 is connected to the emitter of Q1 via R8. Q1, C1, C2, and L2 form a modified Hartley oscillator, and a predetermined signal is output from Q1 by switching by this oscillator and the output of the multivibrator described above. C3, C4 and L1 connected to the output side of Q1 form an antenna matching circuit for matching the antennas ANT and Q1. That is, it plays a role of canceling the imaginary component (reactance) of the impedance of the antenna ANT and Q1 and effectively sending the output of Q1 to the antenna ANT. C5 is a bypass capacitor and R9 and C5 form a decoupling circuit. Further, in this transmission circuit, when any one of the forward button S1 and the turn button S2 is pressed, the transmission lamp D6 indicating that the transmission is in progress is turned on.

Next, the charging circuit will be described. In this charging section, when either the forward button S1 or the turn button S2 is pressed, the voltage (+ 6V) is differentiated by R15 and C6, and the pulse voltage is applied to the base of Q4 via D4 to instantly turn on Q4. . As a result, a current flows through the emitter of Q5, the base and R11, so that Q5 is turned on. The emitter current of Q5 flows into the time constant circuit composed of R13, R12, and C9, and simultaneously becomes the base current of Q4. As a result, the base current of Q4 flows through the emitter of Q5, the five collectors of Q, the bases of R13, C9, R12, and Q4, and the emitter of Q4. The collector current of Q4 is the time constant determined by the time constant circuit. It forms a current loop that flows only for the time. At the same time, the emitter current of Q5 flows into the base of Q6 via R14. As a result, Q6 is turned on. Therefore, the battery connected to the charging jack 4 of the controller 2 via the charging jack 6 of the automobile 3 is rapidly charged for the time of the time constant. Even if the transmission switches S1 and S2 are not pressed, the battery is trickle-charged through R17. Then, after the time of the time constant has passed, C9 is almost fully charged and the base current of Q4 stops flowing, so Q4 turns off, and at the same time, the base current of Q5 stops flowing, so Q4 turns off. Since the base current of Q5 does not flow at the same time, the emitter current of Q5 also stops flowing. Next, the discharge of C9 is started. That is, it is discharged through the paths of C9 (+), R13, R16, D3, C9 (-), C9 (+), R14, Q6 (base), Q6 (emitter), D3, C9 (-). . The battery is charged during the charging time and discharging time of C9. The charging lamp D6 is turned on only during the charging time of C9.

Next, the automobile 3 will be described. The automobile 3 is composed of a chassis 5 and a body 8 mounted on the chassis 5. Of these, the chassis 5 is provided with front wheels 9a and 9b, rear wheels (driving wheels) 10a and 10b, and auxiliary wheels 11a and 11b, as shown in FIG. 2, and a rechargeable battery (for example, nickel-cadmium battery). And a motor 12 (see FIG. 9) which is operated by the battery and can rotate in the forward and reverse directions, and a gear mechanism 20 which transmits the driving force of the motor 12 to the rear wheels 10a, 10b to drive the rear wheels 10a, 10b. (See FIG. 9) and are mounted. Although not shown, the chassis 5 is provided with a receiver that receives a digital control signal from the controller 2 and controls the motor 12 according to the digital control signal.

Here, the rear wheels (driving wheels) 10a and 10b will be described. The left rear wheel 10a is fixed to the drive shaft 30, while the right rear wheel 10b is attached to the drive shaft 30 so as to be idle. ing.

The gear mechanism 20 is roughly divided into a gear mechanism 21 for driving the left rear wheel and a gear mechanism 22 for driving the right rear wheel. Of these, the gear mechanism 21 for driving the left rear wheel rotates integrally with a driving gear 23 fixed to the motor shaft 12, a large diameter gear 24a meshing with the driving gear 23, and the large diameter gear 24a. It is composed of a small diameter gear 24b and a gear 25 that meshes with the small diameter gear 24b and is fixed to the drive shaft 30. On the other hand, the gear mechanism 22 for driving the right rear wheel is attached to the driving gear (sun gear) 23 and an arm 31 which meshes with the driving gear 23 and is swingably attached to the end of the motor shaft 12a. The mounted planetary gear 26, the gear 27 that meshes with the planetary gear 26 when the motor 12 rotates normally, the large-diameter gear 28a that meshes with the gear 27 at all times and meshes with the planetary gear 26 when the motor 12 rotates normally, It is composed of a small diameter gear 28b that rotates integrally with the large diameter gear 28a, and a gear 29 that meshes with the small diameter gear 28b and is attached to the drive shaft 30 in a shaft-free manner. The right rear wheel 10b is engaged with the final gear 29. The latter gear mechanism 22 for driving the right rear wheel functions as follows. During normal rotation of the motor 12, the arm 12 swings and the planetary gear 26 meshes with the gear 27, and the driving force of the motor 12 is transmitted through the gears 23, 26, 27, 28a, 28b and 29 to the right rear. Transmission to the wheel 10b causes the right rear wheel 10b to rotate in the forward direction. On the other hand, when the motor 12 rotates in the reverse direction, the arm 31 swings and the planetary gear 26 meshes with the gear 28a, and is transmitted to the right rear wheel 10b through the gears 23, 26, 28a, 28b, 29, and the right rear wheel 10b. Rotate in the forward direction. That is, the right rear wheel 10b rotates in the forward direction regardless of the rotation direction of the motor 12. On the other hand, the left rear wheel 10a rotates in the forward direction when the motor 12 rotates in the forward direction, and rotates in the reverse direction when the motor 12 rotates in the reverse direction. Therefore, the vehicle 3 turns forward when the motor 12 rotates forward and turns left when the motor 12 rotates backward.

Further, as shown in FIG. 10, a light bulb 40, 40 that constitutes a beam light is attached to the chassis 5 of the automobile 3. The light bulbs 40, 40 are adapted to be turned on during traveling.

According to the radio controlled car 1 thus configured, the following effects can be obtained. That is, according to the radio-controlled model car 1 of the embodiment, at the time of turning, the right rear wheel 10b rotates normally (rotates in the forward direction) and the left rear wheel 10a rotates reversely (rotates in the backward direction). It is possible to make a turn of, and a high-speed turn becomes possible. Also, since the controller 2 has a built-in charging circuit for charging the battery, it is not necessary to separately prepare a charger, and the charging jack is attached to both the controller 2 and the car 3 to charge the battery. It is no longer necessary to remove it each time. In addition, the beam lamp is turned on during the high-speed spin turn, which gives the impression that the disk is taking off and landing.

Although the embodiment made by the present inventor has been described above, the present invention is not limited to the embodiment and various modifications can be made without departing from the gist of the present invention. There is no end.

[0020]

[Effect of device]

 According to the radio controlled car of the present invention, at the time of turning, one driving wheel rotates in the forward direction (rotates in the forward direction) and the other driving wheel rotates in the reverse direction (rotates in the backward direction). A turn can be performed, and a high-speed turn is possible. In addition, if the controller has a built-in charging circuit for charging the battery, it is not necessary to separately prepare a charger, and the charging jack can be attached to both the controller and the vehicle to charge the battery. There is no need to remove it every time.

[Submission date] October 18, 1994

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

Therefore, conventionally, it has been desired to develop a radio controlled car capable of performing a high speed turn on the spot. The present invention has been made in view of such a demand.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

[0005]

[Means for Solving the Problems]

The radio controlled car according to claim 1 includes a controller that transmits a digital control signal, and an automobile configured to move forward or turn by switching the rotation direction of the motor according to the digital control signal. a radio Conquer, the Uni the motor by the motor shaft is parallel to the wheel shafts after the automobile is provided, one drive wheel mounted on the rear wheel shaft is made constant mesh gear wherein according to the rotation direction of the motor is connected to the motor via a gear mechanism for changing the rotational direction of the drive wheel, the other kicked the drive wheels Replacing the rear wheel shaft is attached to the motor shaft a sun gear and, the sun gear and meshed with comprises a planetary gear which can revolve around the sun gear, depending on the direction of revolution of the planetary gears on And it is characterized in that it is connected to the motor via a gear mechanism for rotating the regardless the driving wheels in the forward direction by changing the meshing relationship in the rotational direction of the motor. Also, RC car according to claim 2, wherein, in the radio-controlled car of claim 1, a battery mounted in front Symbol automobile and can be charged while with incorporating a charging circuit for charging the battery to the controller, The charging jack is attached to both the controller and the car.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

Next, the charging circuit will be described. In this charging section, when either the forward button S1 or the turn button S2 is pressed, the voltage (+ 6V) is differentiated by R15 and C6, and the pulse voltage is applied to the base of Q4 via D4, and Q4 is instantaneously changed. Turn it on. As a result, a current flows through the emitter and base of Q5 and R11, so that Q5 is turned on. The emitter current of Q5 flows into the time constant circuit composed of R13, R12, and C9 and becomes the base current of Q4 at the same time. Thus, the emitter of Q5, Q5 of collector, R13, C9, R12, Q4-based, become Q4 of base over the scan current through the emitter of Q4, the time constant collector current of Q4 is determined by the time constant circuit It forms a current loop that flows only for a time. At the same time, the emitter current of Q5 flows into the base of Q6 via R14. As a result, Q6 is turned on. Therefore, the battery connected to the charging jack 4 of the controller 2 via the charging jack 6 of the automobile 3 is rapidly charged for the time of the time constant. Even when the transmission switches S1 and S2 are not pressed, the battery is trickle-charged through R17. Then, after the time of the time constant has passed, C9 is almost fully charged and the base current of Q4 stops flowing, so Q4 turns off, and at the same time, the base current of Q5 stops flowing, the emitter of Q5 does not flow. The electric current also stops flowing . Next, the discharge of C9 is started. That is, it is discharged through the paths of C9 (+), R13, R16, D3, C9 (-), C9 (+), R14, Q6 (base), Q6 (emitter), D3, C9 (-). . The battery is charged during the charging time and discharging time of C9. The charging lamp D6 is turned on only during the charging time of C9.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

The gear mechanism 20 is roughly divided into a gear mechanism 21 for driving the left rear wheel and a gear mechanism 22 for driving the right rear wheel. The left rear wheel drive gear mechanism 21 includes a driving gear 23 fixed to the motor shaft 12a , a large-diameter gear 24a meshing with the driving gear 23, and a large-diameter gear 24a that rotate integrally with the large-diameter gear 24a. The small gear 24b and the gear 25 that meshes with the small gear 24b and is fixed to the drive shaft 30. On the other hand, the gear mechanism 22 for driving the right rear wheel is attached to the driving gear (sun gear) 23 and an arm 31 which meshes with the driving gear 23 and is swingably attached to the end of the motor shaft 12a. The mounted planetary gear 26, the gear 27 that meshes with the planetary gear 26 when the motor 12 rotates normally, the large-diameter gear 28a that meshes with the gear 27 at all times and meshes with the planetary gear 26 when the motor 12 rotates in the reverse direction , It is composed of a small diameter gear 28b that rotates integrally with the large diameter gear 28a, and a gear 29 that meshes with the small diameter gear 28b and is attached to the drive shaft 30 in a shaft-free manner. The right rear wheel 10b is engaged with the final gear 29. The latter gear mechanism 22 for driving the right rear wheel functions as follows. During normal rotation of the motor 12, the arm 12 swings and the planetary gear 26 meshes with the gear 27, and the driving force of the motor 12 is transmitted through the gears 23, 26, 27, 28a, 28b and 29 to the right rear. Transmission to the wheel 10b causes the right rear wheel 10b to rotate in the forward direction. On the other hand, when the motor 12 rotates in the reverse direction, the arm 31 swings and the planetary gear 26 meshes with the gear 28a, and is transmitted to the right rear wheel 10b through the gears 23, 26, 28a, 28b, 29, and the right rear wheel 10b. Rotate in the forward direction. That is, the right rear wheel 10b rotates in the forward direction regardless of the rotation direction of the motor 12. On the other hand, the left rear wheel 10a rotates in the forward direction when the motor 12 rotates in the forward direction, and rotates in the reverse direction when the motor 12 rotates in the reverse direction. Therefore, the vehicle 3 turns forward when the motor 12 rotates forward and turns left when the motor 12 rotates backward.

[Brief description of drawings]

FIG. 1 is a perspective view of the appearance of a radio controlled car according to an embodiment.

FIG. 2 is a back view of the radio-controlled model car of the embodiment.

FIG. 3 is a diagram showing a state during charging of the radio-controlled model car of the embodiment.

FIG. 4 is a diagram showing a state of the radio controlled car of the embodiment during traveling on a wheelie.

FIG. 5 is a plan view showing a state of the radio controlled car of the embodiment at the time of turning.

FIG. 6 is a plan view showing a state of the radio-controlled model car of the embodiment during a spin turn.

FIG. 7 is a plan view showing a spiral traveling state of the radio controlled car of the embodiment.

FIG. 8 is a circuit diagram of a controller in the radio-controlled model car of the embodiment.

FIG. 9 is a perspective view of the gear mechanism of the radio controlled car of the embodiment and its periphery.

FIG. 10 is a perspective view showing a chassis of the radio-controlled model car of the embodiment.

[Explanation of symbols]

 1 Radio Control Car 2 Controller 3 Vehicle 20 Gear Mechanism 23 Driving Gear (Sun Gear) 26 Planetary Gear

[Procedure amendment]

[Submission date] October 18, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area A63H 31/08 B

Claims (2)

[Scope of utility model registration request] 1. A radio controlled car comprising a controller for transmitting a digital control signal and a car configured to move forward or turn by switching the rotation direction of the motor according to the digital control signal. A first drive wheel is fixedly attached to one end of the drive shaft of the above, and a second drive wheel is attached to the other end of the drive shaft so as to be able to idle, and a sun gear is provided in a gear mechanism that drives the second drive wheel. A planetary gear that is rotatable around the sun gear about the axis of the sun gear is incorporated, and the planetary gear is switched to two gears that differ in the rotation direction of the latter stage from the rotation direction of the motor. The radio-controlled model car is characterized in that it is adapted to be selectively meshed according to. 2. The battery is rechargeable,
On the other hand, the radio controlled car according to claim 1, wherein a charging circuit for charging the battery is incorporated in the controller, and a charging jack is attached to both the controller and the vehicle.