JPH019599Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a direction changing device for a radio-controlled car. In other words, the radio-controlled car is able to go straight and make U-turns in one direction simply by rotating the forward-reverse motor in the forward and reverse directions.In particular, the U-turn allows for sharp turns and changes in direction without taking up much space. The present invention has a simple structure in which the motor can be rotated forward and backward by radio-controlled operation, and the operation procedure is simple and can be freely steered and suitably carried out.

Next, the embodiment shown in the drawings will be described.

FIG. 2 shows a partially omitted front view of the transmitter, and the transmitter B having an antenna 10 is equipped with a power switch 11, a straight forward button 12, and a right turn button 13, respectively. Configure.

FIG. 1 shows a side view of a radio-controlled car. The radio-controlled car A has an antenna 14 and a power switch 15 on its exterior, and has front wheels 1a and rear wheels 1b on the left side, and front wheels 2a and rear wheels 2b on the right side.
The gears 16a and 16b are mounted on shafts on the left and right sides of the rear part of the fuselage, and both rear wheels 1
Transmission shafts 18a, which engage the axle gears 17a, 17b of wheels b, 2b, respectively, and extend in the front-rear direction on both sides;
The axle gears 17a, 17b are meshed with gears 19a, 19b at the rear end of 18b, respectively, and are installed so that transmission can be transmitted from both transmission shafts 18a, 18b to front wheels 1a, 2a through gear meshes 20a, 20b, respectively. The large-diameter transmission gears 3 and 4, which are spaced apart on the left and right sides of the rear part of the body, are installed so that transmission can be transmitted to the gears 16a and 16b through gear meshes 21a and 21b, respectively, and the left transmission gear 3 is equipped with an intermediate gear 5.
Constructed by meshing.

Further, a forward/reverse motor M whose axis is vertical is fixed by a mounting frame plate 23 above the motor mounting plate 22 which is stretched above the gear group at the rear of the fuselage. A forward/reverse motor M is installed so as to be capable of forward and reverse rotation, and a stopper groove 9 having stopper portions 9a, 9b at both ends is bored in a circular arc shape in a portion of the motor mounting plate 22 in front of the motor.

A shaft 6a, which is the shaft of the motor M, is fitted into the motor mounting plate 22 and hangs downward, and a drive gear 6 is fixedly installed at the lower part of the shaft 6a. Three planetary gears 7a, 7b, and 7c, which are always in mesh with each other on three sides around the drive gear 6, are rotatably mounted below, and above a part of the outer periphery of the gear mounting plate 8 is the stopper groove. A protrusion 8a that fits into the protrusion 9 is provided in a protruding manner.

Therefore, the neutral state is as shown in FIG. 14.

Therefore, when the switch 15 of the radio-controlled car A and the switch 11 of the transmitter B are turned on and the button 12 of the transmitter B is pressed, the forward/reverse motor M rotates in the forward direction. As shown in FIG. 2, when the drive gear 6 rotates clockwise, each of the planetary gears 7a, 7b, and 7c rotates counterclockwise as shown in FIG. The gear mounting plate 8 rotates counterclockwise until it abuts against the stopper portion 9a, and in this state, the planetary gear 7a meshes with the intermediate gear 5 and the planetary gear 7
b meshes with the transmission gear 4 on the right side, where the drive gear 6
As a result of the rotation of
The wheels 2 on the right side rotate in the same direction, so the radio-controlled car A can move straight.

Also, when turning the radio-controlled car A,
When the button 13 of the transmitter B is pressed, the forward/reverse motor M rotates in reverse, so that the first
Contrary to the case shown in Fig. 3, the drive gear 6 rotates counterclockwise, and the planetary gears 7a, 7b, and 7c that mesh with it rotate clockwise, and the protrusion 8a moves to the right side due to the influence of rotation and inertia of each of the planetary gears. Stopper part 9
The gear mounting plate 8 rotates clockwise until it abuts against the gear b, and in this state, the planetary gear 7b meshes with the transmission gear 3 on the left, and the planetary gear 7c meshes with the transmission gear 4 on the right, and then The rotation of the drive gear 6 causes both the transmission gears 3 and 4 to rotate counterclockwise, so that the left wheel 1 moves forward, and the right wheel 2 moves counterclockwise.
are reversed to each other in the reverse direction, so the radio-controlled car A rapidly turns to the right at double speed and changes direction.

In this way, the present invention meshes the intermediate gear 5 with one of the transmission gears 3 and 4 that drive the left and right wheels 1 and 2, respectively, and rotates the intermediate gear 6 in the forward and reverse directions by the forward and reverse motor M. The planetary gears 7a, 7b, 7c that mesh with each other are connected to the shaft 6a of the drive gear 6.
The planetary gears 7a, 7b, 7c are disposed so as to selectively mesh with the transmission gears 3, 4 and the intermediate gear 5, and the gears are mounted on the gear mounting plate 8 fitted into the gear mounting plate 8. The protrusion 8a protruding from the plate 8 is connected to both stopper portions 9a and 9b on both sides.
Since it is installed and configured so that it can collide with the left and right wheels, the radio-controlled car can be made to go straight and make a U-turn in one direction by simply rotating the forward-reverse motor M in the forward and reverse directions. , 2 can be rotated forward and reverse, making it possible to make sharp turns and change direction without taking up much space.
Depending on the state of the U-turn, conversion maneuvers can be performed in any direction, radio-controlled operation can be performed by simply rotating the forward/reverse motor in the forward and reverse directions, and the device has the advantage of being of a simple structure and suitable for implementation.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of a radio-controlled car, Fig. 2 is a front view of a part of the transmitter, Fig. 3 is a plan view of the lower part of the radio-controlled car, and Fig. 4 is a side view of the radio-controlled car. Fig. 3 is a plan view of the lower part of Fig. 3, Fig. 5 is a plan view of Fig. 4 with a part removed, Fig. 6 is a plan view of Fig. 7 shows a part of FIG. 3, FIG. 8 shows a part of FIG. 7, FIG. 9 is a view taken along the - line of FIG. 7, and FIG. 10 shows a part of FIG. 7. Enlarged view, Figure 11 is a plan view of the gear mounting plate, Figure 12 is a lower plan view of Figure 11, Figure 13 is a plan view of the main part, Figures 14 and 15 are the operation of Figure 13. Explanatory diagrams are shown respectively. 1, 2... Wheels, 3, 4... Transmission gear, 5...
Intermediate gear, M...Forward and reverse rotation motor, 6...Drive gear, 6a...Shaft, 7a, 7b, 7c...Planetary gear, 8...Gear mounting plate, 8a...Protrusion, 9a, 9
b...Stopper section.

Claims (1)

[Scope of utility model registration request] An intermediate gear 5 is meshed with one of the two transmission gears 3 and 4 that drive the left and right wheels 1 and 2, respectively, and a planetary gear 7a is meshed with the periphery of a drive gear 6 that is rotated in forward and reverse directions by a forward and reverse motor M. 7b, 7c
The groups are each mounted on a gear mounting plate 8 with a drive gear 6 fitted onto the shaft 6a, and the planetary gear 7
A, 7b, 7c groups are arranged so as to selectively mesh with both transmission gears 3, 4 and intermediate gear 5, and protrusions 8a protruding from the gear mounting plate 8 are provided on both stopper portions 9a, 9b on both sides. A toy radio-controlled car characterized by being configured so that they can collide.