JPH0142703B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for changing the direction of a traveling toy using radio control.

[Conventional technology]

Conventionally, the direction changing device for this type of traveling toy has been to displace a steering plate attached to the front wheels left and right by forward and reverse operation of a servo motor via a worm gear mechanism, etc., to change the direction of the front wheels, that is, to go straight or turn right Alternatively, a configuration configured to perform a left turn conversion is known.

However, in the conventional direction changing device, if the running toy is frequently changed in direction from side to side, the servo motor must be switched between forward and reverse directions more frequently, and therefore the various contacts constituting the electrical system of the servo motor generates a spark.

The generation of sparks in the servo motor causes damage to the electrical system of the servo motor and malfunction of the wireless controller. In particular, servo motors are expensive due to their excellent control performance, so if the control circuit is devised so as not to generate sparks, the manufacturing cost will further increase.

From this point of view, the applicant first placed electromagnets that can be energized with different polarities and at least a pair of magnets held with different polarities facing each other on a vehicle body, and placed the electromagnets or the pair of magnets in a horizontal plane. The control element is fixed to one end of a rotatably pivoted control element, and is engaged with a steering plate that connects the control element to a wheel, and depending on the energized state of the electromagnet, one of the magnets provided on the control element becomes an electromagnet. He developed a direction changing device configured to displace the control element in either direction by being attracted by it, and filed a patent application (Japanese Patent Publication No. 52827/1983).

[Problem that the invention seeks to solve]

Since the above-mentioned direction changing device is composed of a combination of an electromagnet and a magnet, it is not only simple in construction, but also can significantly reduce manufacturing costs, and is always stable and reliable without malfunctioning of the radio control device. It has the advantage of achieving direction change control. However, in this type of direction changing device, it is preferable in terms of operation to maintain the wheels so that they can move straight when the electromagnet is de-energized. For this reason, in the previously proposed device, a pair of support rods is arranged symmetrically with respect to the shaft that pivots the controller, and one end of this support rod is pivotally connected to the vehicle body base of the traveling toy. The middle part of the control element is elastically connected with a spring, and a locking part formed on the back surface of the control element is elastically held at a predetermined neutral position at the swinging end. The disadvantage is that the configuration is somewhat complicated.

Therefore, an object of the present invention is to simplify the mechanism for holding the controller in the neutral position when no control is performed in the previously proposed direction changing device using electromagnets and magnets, thereby further improving control performance and manufacturing cost. An object of the present invention is to provide a direction changing device for a running toy that can reduce the amount of noise.

(Means for Solving the Problems) A direction changing device for a running toy according to the present invention includes an electromagnet formed by directing both ends of an excitation core energized with different polarities in the same direction, and holding both left and right ends with different polarities. magnets are placed facing each other on the vehicle body, the width of the end of the excitation core of one of the electromagnets is the same as or greater than the width of the end of the opposing magnet, and the electromagnet or the magnet is pivotable in a horizontal plane. It is characterized in that it is fixed to one end of the control element formed in the middle part of the supported steering member.

That is, in the present invention, the control element is integrally provided with the steering member, and the operation of the controller is directly transmitted to the steering member, thereby further simplifying the configuration of the controller and stabilizing the steering operation. and can be achieved reliably.

Therefore, in the direction changing device for a running toy according to the present invention, it is preferable that the electromagnet has a structure in which a coil is wound around the central core of the E-shaped core, and the central core and the magnet are disposed opposite to each other.

In this case, the coil wound around the excitation core should consist of a double coil wound with different polarities, or
Alternatively, it can be constructed so that it can be energized by reversing the polarity using a single coil.

Further, in the above-mentioned direction change device for a running toy, the electromagnet is fixedly arranged on the vehicle body, the magnet is fixed to one end of the control element part, and when the electromagnet is deenergized, the attraction relationship between the magnet and the excitation iron core of the electromagnet is established. It is preferable to configure the steering member to be held in a neutral state. In this case, the electromagnet can be configured to energize or de-energize the coil via a radio-controlled system.

〔Example〕

Next, embodiments of the direction changing device for a traveling toy according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the body structure of a traveling toy using a radio control system implementing the device of the present invention. In FIG. 1, reference numeral 10 indicates the entire body base, and 12 indicates the wheels. A pair of wheels 12, 12 are coupled to both ends of the steering member 14. Therefore, in the illustrated example, if the steering member 14 is turned to the left, the wheels 12,
12 will be deflected to the left. A middle portion of the steering member 14 is pivotally connected to a shaft 16 formed in the vehicle body base 10 and is integrally provided with a control element portion 18. This controller section 18 has a magnet 20
be placed in a fixed position. On the other hand, an electromagnet 22 is fixedly arranged on the vehicle body base 10 so as to face the magnet 20 arranged on the controller section 18 .

However, the electromagnet 22 has an E-shaped excitation core 24.
and a coil 26 wound around the central core portion 24a of the core 24, and the central core portion 24a and the left and right core portions 24b and 24c are configured to have different polarities. Furthermore, the width of the end of the central core portion 24a of the excitation core 24 is the same as that of the magnet 20 facing the central core portion 24a.
Set the width to be the same as or greater than the width of the end of the
Furthermore, the magnet 20 is configured so that the left and right ends have different polarities.

In this way, in this embodiment, the excitation cores 24 of the electromagnets 22 are configured to be biased to different polarities, and when the steering member 14 is in the neutral state, the controller section 18
The magnet 20 is attached to the central core portion 24 of the excitation core 24.
It is configured so that it faces directly in front of a. Therefore, for example, if the polarity of the magnet 20 is set as shown in the figure and the coil 26 is energized so that the polarity of the central core portion 24a of the electromagnet 22 becomes the north pole, the magnet 20 will
The pole side and the N pole side are the iron core part 24 of the electromagnet 22, respectively.
a, 24c, and the S pole side of the magnet 20 is in a repulsive relationship with the iron core portion 24b of the electromagnet 22, causing the controller portion 18 to deviate to the left about the support shaft 16 (see FIG. 2). On the other hand, if the coil 26 is energized so that the polarity of the central core portion 24a of the electromagnet 22 becomes the S pole, the magnet 20 will have its N-pole side and S-pole side connected to the iron core portion 24a of the electromagnet 22, respectively.
24b, and the N pole side of the magnet 20 is in a repulsive relationship with the iron core portion 24c of the electromagnet 22, causing the controller portion 18 to deviate to the right about the support shaft 16.

Therefore, according to this embodiment, by changing the energizing state of the electromagnet 22, the wheels 12, 12 can be controlled to turn in either the left or right direction. Furthermore, when the electromagnet 22 is deenergized, the magnet 20 of the controller section 18 produces an attractive action with the de-energized central core section 24a of the electromagnet 22, so that the controller section 18 and the steering member 14 are It is possible to reliably return to the neutral state as shown in FIG.

The direction changing device having the above configuration can be suitably applied to a traveling toy using a radio control system. In this case, the electromagnet 22 can be constituted by a pair of coils 26a and 26b wound around the central core portion 24a of the exciting core 24 so that current flows in different directions, respectively, as shown in FIG. Therefore, by receiving a predetermined command signal by the radio receiver 30, one of the coils 26a, 26b is connected to the power supply, and the polarity of the excitation core 24 is changed according to the properties of each coil 26a, 26b. , affects the magnet 20 of the controller section 18. As a result, by transmitting two different command signals from a wireless transmitter (not shown), the polarity of the excitation core 24 of the electromagnet 22 is changed, thereby making it possible to turn the wheels 12, 12 to the left or to the right. It can be controlled as follows. In addition, the electromagnet 22
When deenergized, the magnet 20 of the control element 18 becomes attracted to the center core part 24a of the electromagnet 22, the control element 18 and the steering member 14 are immediately held in a neutral state, and the wheels 12, 12 are brought into a straight-ahead state. can do.

The electromagnet 22 may also have a circuit configuration in which a single coil is wound around a part of the excitation core 24, and the polarity of the single coil can be appropriately reversed on the radio receiver 30 side.

〔Effect of the invention〕

As is clear from the above-mentioned embodiments, since the device of the present invention is composed of a combination of an electromagnet and a magnet, it is not only simple in construction, but also can significantly reduce manufacturing costs, and can be used to control wireless operating devices. The operation is easy, there is no malfunction, and stable and reliable direction change control can be achieved at all times. In particular, in the device of the present invention, since the steering member and the controller part are integrated, the configuration of the controller part is extremely simplified, and the return of the steering member to the neutral state when the electromagnet is deenergized is made easier and This can definitely be achieved.

In addition, in the above-mentioned embodiment, a case was shown in which a magnet was provided in the control element part, but even if an electromagnet is placed in the control element part and a magnet facing the electromagnet is fixed to the vehicle body base, the same effect as in the above embodiment is achieved. A similar effect can be obtained.

In addition, regarding the configuration of the excitation core of the electromagnet, one of the cores located on either side of the central core is omitted, and the configuration is such that only one of the right and left rotations is controlled. You can also.

Although the preferred embodiments of the present invention have been described above, it goes without saying that various improvements and changes can be made without departing from the spirit of the present invention.

[Brief explanation of drawings]

FIG. 1 is a structural diagram of a main part of a vehicle body of a traveling toy showing an embodiment of the device of the present invention, and FIG. 2 is an explanatory diagram showing the operation of the controller section and the control mechanism of the electromagnet shown in FIG. 1. 10...Vehicle base, 12...Wheels, 14...
Steering member, 16... shaft, 18... controller section, 20... magnet, 22... electromagnet, 24... exciting iron core, 26... coil, 30... radio receiver.

Claims (1)

[Scope of Claims] 1. An electromagnet having both ends of an excitation core energized with different polarities oriented in the same direction, and a magnet having both left and right ends held with different polarities are arranged facing each other on a vehicle body, The width of the end of one excitation core of the electromagnet is the same as or greater than the width of the end of the opposing magnet, and the electromagnet or magnet is formed in the middle part of a steering member pivotably supported in a horizontal plane. A direction changing device for a running toy, characterized in that it is fixed to one end of a child part. 2. In the direction changing device for a traveling toy as set forth in claim 1, the electromagnet is a traveling toy in which a coil is wound around the central core of an E-shaped core, and the central core and the magnet are arranged to face each other. Direction changing device. 3. In the device for changing the direction of a traveling toy as set forth in claim 1 or 2, the electromagnet is provided with a double coil wound with a different polarity around the excitation core. Device. 4. In the direction changing device for a traveling toy according to claim 1 or 2, the electromagnet winds a single coil around the excitation core, and energizes the single coil by reversing the polarity. A direction changing device for a traveling toy configured to enable 5. In the direction changing device for a traveling toy according to any one of claims 1 to 4, the electromagnet is fixedly arranged on the vehicle body, the magnet is fixed to one end of the control part, and the electromagnet is turned off. A direction changing device for a traveling toy, which is configured to maintain a steering member in a neutral state by an attractive relationship between the magnet and an iron core of an electromagnet when the magnet is turned on. 6. In the direction changing device for a traveling toy according to any one of claims 1 to 5, the electromagnet is configured to energize or deenergize a coil by a radio control system. Direction changing device.