JPH074874Y2 - Underground running toy - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground running toy having a function of moving under the ground.

[0002]

2. Description of the Related Art Heretofore, an underground running toy has been devised on the assumption that it moves under the ground. In this underground running toy, a propulsion member having a tapered screw thread is provided in the front part of the traveling vehicle of the main body, and the propulsion member is rotated by utilizing a part of the power of the drive device for traveling of the traveling vehicle. Was configured.

However, according to the above-mentioned conventional underground running toy, the propulsion member provided at the front part of the traveling vehicle merely obtains a design effect, and the propulsion member actually dives into the ground. I couldn't. Further, even if a power unit directly connected to this propulsion member is provided and a sufficient driving torque is given, the traveling vehicle itself is rotated in reverse by the reaction torque when the propulsion member rotates and dives into the ground. It had a defect such as.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been devised in view of the above-mentioned drawbacks of the conventional type, and the two power units of the main body are provided with screw members having different screw winding directions at the front portions thereof. When the car rotates and dive into the ground, the repulsive torques of the two screw members cancel each other out, and the toy body is not turned in the opposite direction by the screw member, so you can actually dive into the ground. It is intended to provide toys.

[0005]

The underground running toy according to the present invention has the following requirements. That is, (a) Two power units are installed side by side on the toy body via a connecting member. (B) The power unit is composed of a case, a motor provided in the case, and an output shaft that is linked to the drive shaft of the motor and protrudes from the case. (C)
That is, the output shafts of the two power units are provided with screw members each having a diameter that decreases toward the front and have different screw winding directions.

[0006]

In the above structure, two power units are arranged side by side on the toy body, and the output shaft of each unit is provided with a screw member having a diameter decreasing toward the front and having different screw winding directions. Therefore, when the screw member of the clockwise screw is rotated clockwise and the screw member of the counterclockwise screw is rotated counterclockwise, the reaction torque due to the rotation of the screw member of the clockwise screw and the screw member of the counterclockwise screw are The reaction torques due to rotation cancel each other out,
The main body can dive into the ground without being affected by rotational torque.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a toy body of an underground running toy, and the toy body 1 has two power units 3A and 3B arranged side by side via a flat plate-shaped connecting member 2. Each of the power units 3A and 3B has a cylindrical case 31 as shown in FIG. The case 31 is formed with an outer circumference that is substantially the same as or smaller than the final diameter of the screw members 7A and 7B, which will be described later, and is composed of a cylindrical storage portion 32a and a tapered storage portion 32b. Is provided with a motor 4, and a reduction gear unit 5 connected to the drive shaft of the motor 4 is provided in the tapered accommodating portion 32b. This reduction gear device 5 includes a pinion 51 provided on the drive shaft of the motor 4.
A spur gear 52 meshing with it, a pinion 53 integral with the spur gear 52, a spur gear 54 meshing therewith, a pinion 55 integral with the spur gear 54, and a spur gear 56 meshing therewith.
, A spur gear 56 and a pinion 57, a spur gear 58 meshing with the pinion 57, and a spur gear 58 and a pinion 59. The output shaft 6 having a spur gear 61 meshing with the pinion 59 is projected to the outside through the storage portion 32b. The output shafts 6, 6 of the power units 3A, 3B
The screw members 7A and 7B are attached to the sleeve via a sleeve 62. The screw member 7A has a right-handed screw portion whose diameter decreases toward the front and is attached to the right power unit 3A. The screw member 7B has a counterclockwise threaded portion whose diameter decreases toward the front and is attached to the left power unit 3B. An O-ring 63 for preventing the entry of mud is provided between the bases of the screw members 7A and 7B and the tapered accommodating portion 32b, and the tip ends of the screw members 7A and 7B are respectively wound with screws. The motor 4 to which the screw members 8A and 8B having the same direction are integrally attached is connected to a battery for power supply in a remote control box 9 formed separately via a lead wire 91, and to each controller. Connected and operating lever 9 of the controller
A and 9B are operably projected on the remote control box 9.

In the above structure, FIG. 3 shows an example of mounting the toy body 1 of the underground running toy on a vehicle toy 11 and playing it. As shown in the figure, the toy body 1 is mounted on the luggage carrier 12. When the toy body 1 is tilted by 45 degrees or more and stopped at a predetermined position by gravity, the toy body 1 descends along the slope due to gravity, and the screw members 8A and 8B at the tips pierce the ground. On the other hand, when the operation lever 9A and the operation lever 9B of the remote operation box 9 are tilted to the forward position, the power unit 3
The motor 4 of A can be rotated clockwise and the motor 4 of the power unit 3B can be rotated counterclockwise. Similarly, operating lever 9
When the A and the operation lever 9B are tilted to the retracted position, the motor 4 of the power unit 3A can be rotated left and the motor 4 of the power unit 3B can be rotated right. When the operation lever 9A and the operation lever 9B are returned to the stop position, the motor 4 can be stopped. Further, both the operation lever 9A and the operation lever 9B can be operated independently, and the corresponding motor 4 can be operated by the operation.
Can be controlled. Then, these motors 4
With the rotation, the output shaft 6 is rotated through the respective reduction gear units 5 at a predetermined reduction rotation speed, and the screw members 7A and 7B are driven integrally with the output shaft 6 through the sleeve 62. The screw members 8A, 8B at the tip end rotate with the rotation of the screw members 7A, 7B, and the screw members 8A, 8B in the state of being pierced into the ground as described above are guided by the screw members 7A, 7B. Be screwed into. In this case, the screw members 7A and 7B can be driven with a large torque in response to the rotation speed of the motor 4 according to the reduction rotation speed by the reduction gear device 5, and the reaction torque due to the rotation of the screw member 7A of the clockwise screw can be The reaction torques caused by the rotation of the left-handed screw member 7B cancel each other out, and the toy body 1 can be moved in the form of diving into the ground without being affected by the rotational torque. At this time, the power units 3A, 3B
Is formed with an outer periphery that is substantially the same as or smaller than the final diameter of the screw members 7A and 7B, so that it does not hinder underground movement. Further, since the connecting member 2 is also formed in a flat plate shape, it does not hinder the movement in the ground, but the resistance can be further reduced by forming the taper 2a at the tip.
The direction of movement of the toy body 1 can be arbitrarily changed by selectively operating the operation lever 9A or the operation lever 9B of the remote operation box 9. Further, when the operation lever 9A and the operation lever 9B are set to the retracted position, the rotation direction of the motor 4 is reversed and the screw member 7
The toy body 1 can also be retracted and pulled back to the ground by reversing A and 7B. Further, if the screw members 7A, 7B are grounded on the ground, the toy body 1 can be caused to travel on the ground by the driving force of the screw members 7A, 7B. Further, the two screw members 7A, 7B By rotating the toys in the same direction, the toy body 1 can be laterally moved in either the left or right direction.

[0009]

In the underground toy of the present invention, two power units are juxtaposed via a connecting member, and screw members having different screw winding directions are provided in each of the power units. The reaction torque due to the rotation and the reaction torque due to the rotation of the screw member of the counterclockwise screw cancel each other out, so that the toy body can be submerged in the ground without being affected by the rotation torque.

[Brief description of drawings]

FIG. 1 is a perspective view of an underground running toy according to an embodiment of the present invention.

FIG. 2 is a cutaway side view of essential parts of the underground running toy of FIG.

FIG. 3 is a perspective view showing an example of play of the underground running toy.

[Explanation of symbols]

 1 Toy Main Body 2 Connection Member 3A Power Unit 3B Power Unit 4 Motor 5 Reduction Gear Device 6 Output Shaft 7A Screw Member 7B Screw Member 31 Case

Claims (1)

[Scope of utility model registration request] 1. An underground running toy having the following requirements. (A) Two power units are installed side by side on the toy body via a connecting member. (B) The power unit is composed of a case, a motor provided in the case, and an output shaft that is linked to the drive shaft of the motor and protrudes from the case. (C) The output shafts of the two power units are provided with screw members each having a diameter that becomes smaller toward the front and different in the winding direction of the screws. (D) The two output shafts should rotate in opposite directions by the motor.