JPH02277486A - Driving gear of motor and spring combined with each other - Google Patents

Abstract

PURPOSE:To enable forward or reverse rotation, or intermittent working to be automatically performed by arranging a DC motor and a spring, to provide a driving circuit for permitting current to flow only for a specified time, with the DC motor, and by engaging the driving circuit with the winding shaft of the spring. CONSTITUTION:A DC motor 2 and a spring 3 are arranged, and a driving circuit for permitting current to flow by a specified time is provided with the DC motor 2, and the driving circuit is engaged with the winding shaft 10 of the spring 3. As this result, intermittent movement, or forward or reverse movement can be performed automatically and easily. Besides, in case of the intermittent movement, the output of the DC motor is used in order to wind up the spring, but a force for winding up the spring is always almost constant, and so a load bearing on the DC motor is constant, and so power is less consumed, and the span of the life of a battery is lengthened twice approximately. Besides, by setting the output shaft of the DC motor and the spring in common, the forward or reverse rotation of the output shaft can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a drive device that is equipped with a DC motor and a mainspring, and that outputs an output by a combination of the two.

(Prior art and its problems) When performing intermittent motion or forward/reverse rotation motion using a conventional drive device using a DC motor, a relay or a polarity switching mechanism may be used. This results in high power consumption and poor battery life. In addition, in the case of a drive device that uses a mainspring,
In addition to the addition of a complicated mechanism, the mainspring requires manual winding, making it cumbersome to operate.

(Object of the Invention) The present invention solves the above-mentioned drawbacks, and in particular, combines a DC motor and a mainspring to automatically perform forward/reverse rotation or intermittent operation, and also to reduce power consumption. Its purpose is to provide a combination drive.

(Means for Achieving the Object) In order to achieve the above object, a combination drive device of a DC motor and a mainspring according to the present invention is characterized by having the following requirements.

(a) Equipped with a DC motor and a mainspring.

(b) The DC motor must be installed in a drive circuit that allows current to flow for a predetermined period of time, and must be linked to the winding shaft of the mainspring.

Further, the driving circuit may be configured to be operated by a sensor such as a sound sensor or a light sensor.

Furthermore, the output shaft may be shared with the mainspring of the DC motor.

(Operations and Effects of the Invention) According to the drive device, intermittent work and forward/reverse movement can be performed automatically and easily. In addition, in the case of intermittent motion, the output of the DC motor is used to wind up the mainspring.
Since the winding force of the mainspring is always almost constant, the load on the DC motor is constant, so power consumption is reduced and the battery life is approximately doubled.

In addition, by configuring the DC motor to move using a sensor switch such as a sound sensor, the drive device operates in response to a person's voice or applause, so communication exists between people and those using the drive device. It is possible to create a situation where it seems like a toy, and it can be applied to a variety of fields.

Furthermore, by using a common output shaft for the DC motor and the mainspring, the output shaft can be rotated in forward and reverse directions.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 and 2 show a combination drive device consisting of a DC motor and a mainspring.This has a DC motor 2 at one end of a gearbox 1, a mainspring 3 at the other end, and an output shaft in the center. 4, a battery box 5 is provided on the back side of the gearbox 1, and a control board 6 and a sound sensor switch 7 for the DC motor 2 are provided on the negative side. 2
operates to wind up the mainspring 3, and then the output shaft 4 is rotated by the driving force of the mainspring 3.

The output shaft 4 is linked to a DC motor 2 and a mainspring 3 via a group of gears in a gearbox 1. That is, the output shaft 4 is provided so as to freely rotate coaxially with the drive gear 9 via the clutch 8. The small diameter gear 9a of the drive gear 9 is meshed and connected to the mainspring gear 11 provided on the mainspring winding shaft 1O, and the large diameter gear 9b of the drive gear 9 is provided on the rotating shaft of the DC motor 2 via an intermediate gear 12. It is meshingly connected to the DC motor output gear 13.

Therefore, when the DC motor 2 operates, its rotational force is transmitted to the drive gear 9 via the intermediate gear 12, and further from the spring gear 11 to the spring winding shaft 10.
is transmitted to. Conversely, when the mainspring 3 in the wound state is unwound, the rotational force is transmitted from the mainspring gear 11 to the drive gear 9, and then from the intermediate gear 12 to the DC motor output gear 13.

An engaging part (not shown) that engages with the end of the mainspring 3 is provided at the end of the mainspring winding shaft 10, and the mainspring 3 is rotated by the mainspring gear 11 receiving the rotational force of the DC motor 2. It is configured to be rolled up.

Further, as shown in FIG. 3, an engagement piece 14 is formed on the clutch 8 fixed to the output shaft 4, and the engagement piece 14 engages with an opening 15 formed on the side surface of the drive gear 9. , so that they engage only when rotated in one direction.

As a result, in the direction of rotation by the DC motor 2, it idles,
They are formed so as to be connected in the direction of rotation by the mainspring 3.

Further, the drive circuit of the DC motor 2 is connected to the sound sensor switch 7 as shown in FIG. 4, and the power switch (16)
At the same time, the capacitance of the capacitor 17 is set so that when the sound sensor switch 7 is turned on, current flows for a certain period of time.This time is normally required to wind up the mainspring 3 by rotating the DC motor 2. You can set it at a suitable time.

In the above configuration, when a sound operation such as clapping a hand is performed after the power switch is turned on, the sound sensor switch 7 is turned on due to the sound detection, and the DC motor 2 is activated. In this case, the clutch 8 is not engaged, so the output shaft 4 does not rotate, but the mainspring gear 11 rotates, so the mainspring 3 is wound up. Since the rotation of the DC motor 2 continues for a certain period of time and then stops, the mainspring 3 is now rewound, the clutch 8 is engaged, and the output shaft 4 is rotated. When the sound sensor switch 7 detects a sound during the winding of the mainspring 3, the DC motor 2 rotates again and winds the mainspring 3. After a certain period of time, when the drive circuit of the DC motor 2 is opened, the mainspring starts again. 3 rotates the output shaft 4. Therefore, the output shaft 4 of the drive device rotates intermittently by sensing the sounds that occur at intervals. Since the sound may be a human voice or applause, it is possible to create a situation where it appears as if there is communication between something using the drive device and a person.

Note that when the mainspring 3 is rewound, the DC motor 2
receives the rotational force from mainspring 3 and rotates, so it generates electricity. Therefore, if connected to a light emitting element such as an LED,
Since the light emitting element emits light, this effect can be utilized.

The above drive device can be applied as a drive device for artificial flowers for kosashu, as shown in FIG. 5, for example.

The above-mentioned Kosash has an artificial flower arranged in the upper part of the casing 20 and a sound sensor switch 7, and the drive device is provided in the lower part of the casing 20, and its output shaft 4.
A gear 21 provided at the top of the casing 20 is meshed with a gear 24 of a rotary plate 23 via a reduction gear 22 provided at the top of the casing 20, while a rocker 21 is further provided at the top of the casing 20 and is swingably supported by a support shaft 25. A moving shaft 26 is connected to an eccentric shaft 27 formed on the rotating plate 23 via a link 28,
An artificial flower 29 is supported on the upper part of the swing shaft 26. The reason why the sound sensor switch 7 is exposed outside the casing 20 is to prevent it from malfunctioning due to the sound of clothes rubbing against each other when the switch is placed in a pocket or the like or is stopped in a bottle.

With the above configuration, when the sound sensor switch 7 detects an intermittent external sound, the output shaft 4 of the drive device rotates intermittently, so that the rotational force from the gear 21 is applied to the rotary plate 23 via the reduction gear 22. As the rotation plate 23 is transmitted, the swing shaft 26 swings by the link 28, and the artificial flower 29 also swings in conjunction with this. Artificial flowers 2 from sound sensor sound detection
9's movements are delayed a little, so from the outside it doesn't look like it's sensing sound and moving, which makes it all the more surprising. Furthermore, when the LED is used, the LED emits light due to the electromotive force generated when the DC motor 2 rotates in reverse, so it is more effective.

Next, in the drive device, if the drive gear 9 and the output shaft 4 are directly connected without providing the clutch 8 on the output shaft 4, the output shaft 4 receives the driving force of both the DC motor 2 and the mainspring 3 and rotates in forward and reverse directions. do.

For example, as shown in FIG.
It is sufficient if they are meshed and connected to 3.

According to this, when the DC motor 2 rotates, the drive shaft 3
The forward rotation of 2 causes the traveling toy to travel forward, and then the mainspring 3 causes the toy to travel backward. In this case, the distance increases due to the effect of inertia. Conversely, the mainspring may be used as a forward driving source, and the DC/current motor 2 may be used as a backward driving source.

Furthermore, in the above example, the output shaft is common to both, but the output shaft of the DC motor and the output shaft 4 of the mainspring may be provided independently, or the output shaft may be provided only on the mainspring. .

This allows each output shaft to be rotated separately. Furthermore, instead of the sound sensor switch, a sensor such as a light sensor may be used in the DC morph drive circuit.

As described above, according to the drive device, intermittent movement and forward/reverse movement can be automatically and easily performed. In addition, in the case of intermittent motion, the output of the DC motor is used to wind up the mainspring, but since the winding force of the mainspring is almost constant, the load on the DC motor is constant, so power consumption is low. Battery life will be approximately doubled.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are a perspective view and a sectional view, respectively, of a combination drive device of a DC motor and a mainspring according to the present invention;
FIG. 3 is an explanatory diagram of the clutch, FIG. 4 is a drive circuit diagram of the DC motor, and FIGS. 5 and 6 are perspective views and internal structure diagrams of a cosash using the drive device. Code 2...DC motor, 3...Spring, 10...
・Hoisting shaft

Claims (3)

[Claims] (1) A combination drive device of a motor and a mainspring, which is characterized by having the following requirements. (a) Equipped with a DC motor and a mainspring. (b) The DC motor must be installed in a drive circuit that supplies current for a predetermined period of time, and must be linked to the winding shaft of the mainspring. (2) The combined drive device of a DC motor and a mainspring according to claim (1), wherein the drive circuit is operated by a sensor such as a sound sensor or a light sensor. (3) The combined drive device for a DC motor and a mainspring according to claim 1, wherein the DC motor and the mainspring have a common output shaft.