JPH0779878B2 - Combination drive device of motor and mainspring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a drive device that includes a direct current motor and a mainspring, and that outputs by combining the two.

(Prior Art and Its Problems) When a drive device using a conventional DC motor is used to perform intermittent movement or forward / reverse rotation movement, a relay or a polarity changing mechanism may be used, but the DC motor is intermittently rotated. As a result, power consumption is high and battery life is poor. Also, in the case of a drive device using a mainspring,
In addition to adding a complicated mechanism, the mainspring requires manual winding work, which makes the operation troublesome.

(Object of the Invention) The present invention solves the above-mentioned drawbacks, and particularly, by combining a DC motor and a mainspring, forward / reverse rotation or intermittent operation is automatically performed, and moreover, a DC motor and a mainspring which consume less power are required. It is an object of the invention to provide a combination drive.

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

(A) A direct current motor and a mainspring are provided.

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

Further, the drive circuit may be operated by a sensor such as a sound sensor or an optical sensor.

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

(Operation and Effect of the Invention) According to the drive device, it is possible to automatically and easily perform intermittent movement and forward / reverse movement. 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 almost constant at all times, the load on the DC motor is constant, so that the power consumption is small and the battery life is approximately doubled.

Also, by configuring the DC motor to move by a sensor switch such as a sound sensor, it operates according to the voice and applause of the driving device, so there is communication between the person using the driving device and the person. It is possible to create a situation that looks like it can be applied to various fields besides toys.

Further, by making the output shaft of the DC motor and the mainspring common, the forward and reverse rotations of the output shaft can be performed.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show a combination drive device of a DC motor and a mainspring, which has a DC motor 2 at one end of a gearbox 1, a mainspring 3 at the other end, and an output shaft at the center. 4 are respectively arranged, the battery box 5 is provided on the back side of the gear box 1, and the control board 6 and the sound sensor switch 7 of the DC motor 2 are provided on one side.
Is operated 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 the DC motor 2 and the mainspring 3 via a group of gears in the 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 with the mainspring gear 11 provided on the mainspring winding shaft 10, and the large-diameter gear 9b of the drive gear 9 is provided on the rotary shaft of the DC motor 2 via the intermediate gear 12. It is meshed with 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 is further transmitted from the mainspring gear 11 to the mainspring winding shaft 10. On the contrary, when the spirally wound mainspring 3 is rewound, its 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 engagement portion (not shown) that engages with an end portion of the mainspring 3 is provided at an end portion of the mainspring winding shaft 10.
The mainspring 3 is wound up by receiving the rotational force of the DC motor 2 and rotating. Further, as shown in FIG. 3, an engaging piece 14 is formed on the clutch 8 fixed to the output shaft 4, and the engaging piece 14 is different from the opening 15 formed on the side surface of the drive gear 9. , Is formed so as to be engaged only when rotated to one side. As a result, it is formed so as to idle in the direction of rotation by the DC motor 2 and connect 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 a capacitor 17 is provided so that a current flows only for a certain time when the sound sensor switch 7 is turned on together with the power switch (16). Set the capacity of. In the normal case, this time may be set to the time required to wind up the mainspring 3 by the rotation of the DC motor 2.

In the above configuration, when a sound output operation such as clapping a hand is performed after turning on the power switch, the sound sensor switch 7 is turned on by the sound detection, and the DC motor 2 is operated. In this case, the output shaft 4 does not rotate because the clutch 8 is not engaged, but the mainspring 3 rotates because the mainspring gear 11 rotates. Since the rotation of the DC motor 2 is stopped for a certain period of time and then stopped, the mainspring 3 is rewound, the clutch 8 is engaged, and the output shaft 4 rotates. When the sound sensor switch 7 senses a sound during rewinding of the mainspring 3, the DC motor 2 rotates again to rewind the mainspring 3, and after a certain time, the drive circuit of the DC motor 2 opens, the mainspring 3 again. The output shaft 4 is rotated by the driving force of. Therefore, the output shaft 4 of the drive device rotates intermittently by sensing the sound generated at intervals. Since the sound may be a human voice or applause, it is possible to create a situation in which there is communication between the person using the drive device and the person.

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

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

In the above corsage, the artificial flower is arranged on the upper part of the casing 20 and the sound sensor switch 7 is arranged, while the drive device is arranged on the lower part of the casing 20, and the gear 21 provided on the output shaft 4 thereof is arranged on the upper part of the casing 20. Provided reduction gear
While being meshed with the gear 24 of the rotary plate 23 via 22, a swing shaft 26, which is further swingably supported by a support shaft 25 on the upper part of the casing 20, is attached to an eccentric shaft 27 formed on the rotary plate 23. Artificial flower 29 is connected to the upper part of the swing shaft 26 by being connected through a link 28.
Is supported. The sound sensor switch 7 is provided outside the casing 20 for the purpose of preventing a malfunction by sensing a rubbing sound of clothes when it is put in a pocket or the like or stopped by a pin.

With the above configuration, when the sound sensor switch 7 senses an intermittent external sound, the output shaft 4 of the drive device intermittently rotates, so the rotational force from the gear 21 is transmitted to the rotary plate 23 via the reduction gear 22. And the rotating plate 23 rotates, so the link
The swing shaft 26 swings by 28, and the artificial flower 29 also swings in conjunction with this. The artificial flower 29 is a little behind the motion of the sound sensor, so from the appearance it doesn't seem to be moving by sensing the sound, which doubles the surprise. Furthermore, when the LED is used, the LED emits light by the electromotive force generated when the DC motor 2 rotates in the reverse direction, which is more effective.

Next, when the drive gear 9 and the output shaft 4 are directly connected to each other without providing the clutch 8 on the output shaft 4 in the drive device, the output shaft 4 receives the driving force of both the DC motor 2 and the mainspring 3 and rotates in the forward and reverse directions. To do. For example, as shown in FIG. 6, the output shaft gear 30 of the drive device is connected to the drive shaft 32 of the wheel 31 of the traveling toy.
The gear 33 may be meshed and connected. According to this, when the DC motor 2 rotates, the traveling toy travels forward by the forward rotation of the drive shaft 32, and then travels backward by the mainspring 3. At this time, the distance increases due to the action of inertia. Conversely, the mainspring may be used as a forward drive source and the DC motor 2 may be used as a backward drive source.

Further, in the above-mentioned example, the output shafts are all common, 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 in the mainspring. . Thereby, each output shaft can be rotated separately. Also, in the drive circuit of the DC motor,
A sensor such as an optical sensor may be used instead of the sound sensor switch.

As described above, according to the drive device, the intermittent movement and the forward / reverse movement can be automatically and easily performed. Also, 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, The life of the battery is doubled.

[Brief description of drawings]

1 and 2 are a perspective view and a sectional view of a combination drive device of a DC motor and a power spring according to the present invention, respectively.
FIG. 3 is an explanatory view of a clutch, FIG. 4 is a drive circuit diagram of the DC motor, and FIGS. 5 and 6 are perspective views and internal structure explanatory views of a corsage using the drive device. Reference numeral 2 ... DC motor, 3 ... mainspring, 10 ... winding shaft

Claims (3)

[Claims] 1. A combined drive device of a motor and a mainspring having the following requirements. (A) A direct current motor and a mainspring are provided. (B) The DC motor must be installed in a drive circuit that allows a current to flow for a predetermined time and linked to the winding shaft of the mainspring. 2. The combination drive device according to claim 1, wherein the drive circuit is operated by a sensor such as a sound sensor or an optical sensor. 3. A combination drive device for a direct current motor and a mainspring as claimed in claim 1, wherein the output shaft of the mainspring of the direct current motor is common.