JPH0412907Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a device that can drive an awning, shutter, blind, etc. electrically and manually.

(Conventional technology and its problems) When electrifying awnings, shutters, blinds, rain shutters, or ventilation windows for greenhouses and greenhouses, it can be done manually or driven.

For example, in the case of shutters, shutters, etc., the reduction ratio is reduced to compensate for the insufficient power using other balance mechanisms to make them electric, and in the case of manual transmission, the motor is turned by hand through a gear to raise and lower the shutter. In addition, in awnings, blinds, ventilation windows, etc., the reduction ratio cannot be made very small, so the motor cannot be rotated, so the output shaft is coaxial with the output shaft through a differential gear or clutch, and the motor is not rotated. It is turned by a manual gear installed separately on the opposite side.

As a result, the balance mechanism of shutters etc. is complicated, and in awnings etc. differential gears,
It required a clutch and manual gear, which was expensive.

This idea was created to solve the problems mentioned above, and its purpose was to create a balance mechanism,
To provide a drive device that does not require a differential gear or a clutch, has a relatively simple configuration, and can be easily used in combination with electric and manual drives.

<Means for solving the problem> The electric and manual drive device according to this invention connects the output shaft 4 of the motor 3 and the final output shaft 5 by a reduction gear train 6 with a reduction ratio of 1/100, for example. A manual drive mechanism 8 is connected to an intermediate output shaft 7 of the reduction gear train 6, which has a reduction ratio of, for example, 1/10.

<Function> During electric operation, the final output shaft 5 is activated at a reduction ratio of 1/100.
drive the rotation. During manual operation, the intermediate output shaft 7 is rotated, and both the motor 3 and the final output shaft 7 are rotated.

<Example> Hereinafter, this invention will be described based on an illustrative example.

As shown in FIGS. 1 and 2, a gear box 2 is provided on one side of the winding shaft 1 of the awning, a motor 3 is attached to the lower part of the gear box 2, and the output shaft 4 of the motor 3 and the winding shaft 1 are connected to each other. A final output shaft 5 connected to the shaft 1 etc. is connected by a reduction gear train 6,
A manual drive mechanism 8 is connected to the intermediate output shaft 7 of this reduction gear train 6.

The reduction gear train 6 consists of a hypoid gear 9, which is a type of bevel gear, and a second reduction gear train 10, which is made up of four gears. is connected. The intermediate output shaft 7 protrudes to the opposite side of the winding shaft 1, and a manual drive mechanism 8 consisting of bevel gears 11, 12 and a manual winding shaft 13 is attached to the tip.

In such a configuration, the reduction ratio of the hypoid gear 9 is set to 1/10, for example, and the second reduction gear train 10
For example, if the reduction ratio is 1/10, the final output shaft 5
In this case, the reduction ratio is 1/100, and the large torque and rotational speed necessary for winding can be obtained. Then, in the case of manual operation, turn the intermediate output shaft 7 with a reduction ratio of 1/10,
Rotate both the motor 3 and the final output shaft 5. By rotating the intermediate output shaft 7 with a reduction ratio of 1/10 in this manner, the motor 3 can rotate the final output shaft 5 with a relatively small torque.

The hypoid gear 9 has advantages such as being able to have a small installation width and a high speed ratio, but is not limited to this, and can also be used with any gear that can transmit power from the output shaft 4 to the intermediate output shaft 7 orthogonal to it, such as other bevel gears. Bye.

In addition, the bevel gears 11 and 12 of the manual drive mechanism 8
may be a hypoid gear.

A rotation number counter 14 is used for electric stop control. The rotation number counter 14 is 14A for CW.
Consists of 14B for CCW, gear 1 on intermediate output shaft 7
5, and stops during winding and unwinding. This counter 14 outputs a contact point when the count is full, and if it is designed to be able to count up to the number of revolutions that is, for example, 10 times the required number of revolutions of the final output shaft 5, a gear for correcting the number of revolutions can be installed separately. Stop control can be easily performed in the case of electric motors without the need to provide one.

Furthermore, if the rotation counter 14 and the counter reset section are all housed within the gearbox 2, an external drive unit can be realized relatively easily by making the gearbox 2 and motor 3 drip-proof. can.

<Effects of the invention> As mentioned above, according to this invention, the output shaft of the motor and the final output shaft are connected by a reduction gear train, and the manual drive mechanism is connected to the intermediate output shaft of this reduction gear train. Therefore, the following effects are achieved.

() Electric and manual operation can be used together without the need for a balance mechanism, differential gear, or clutch, and it is inexpensive.

() It can have a relatively simple configuration and can be compactly assembled at one end of an awning or the like.

() The electric stop position does not shift even during manual operation.

() The intermediate output shaft for manual operation can also be used as the drive shaft for the stop position counter, reducing the number of gears and reducing the cost accordingly.

[Brief explanation of drawings]

FIGS. 1 and 2 are a longitudinal sectional view and a side view showing an electric and manual drive device according to this invention. 1... Winding shaft, 2... Gear box, 3... Motor, 4... Output shaft, 5... Final output shaft, 6...
Reduction gear train, 7... Intermediate output shaft, 8... Manual drive mechanism, 9... Hypoid gear, 10... Second gear train, 11, 12... Bevel gear, 13... Manual winding shaft, 14... ...Revolution counter, 15...gear.

Claims (1)

[Scope of utility model registration request] A drive device that rotationally drives a final output shaft electrically and manually, the output shaft 4 of the motor 3;
An electric and manual drive device characterized in that a final output shaft 5 is connected to a reduction gear train 6, and a manual drive mechanism 8 is connected to an intermediate output shaft 7 of the reduction gear train 6.