JP3066732U - Switchgear manual override - Google Patents

Abstract

(57) [Problem] To provide a novel manual operating device for a switchgear which does not require a great deal of labor to wind up a shutter by manual operation, and has greatly improved operability. A portable electric motor is used as a power source for rolling up a shutter, and a flexible power transmission member for transmitting a rotational motion to a shutter opening / closing device is combined.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention belongs to the technical field of a manual operation device of a switchgear.

[0002]

[Prior art]

 Conventionally, there have been handle-type and chain-type manual operation tools for winding the shutter when commercial power cannot be used due to a power failure or the like.

[0003] In a shutter opener that transmits a rotational motion given to a manual input unit to an output shaft of a shutter opener via a speed reducer, a manual input unit provided at the rear of the shutter opener has a handle rotating shaft or a chain rotating unit. By inserting the shaft and turning the handle or the endless chain, each rotating shaft rotates and the rotational motion is transmitted to the manual input section of the switchgear, and the shutter can be wound up.

However, since the rotational motion transmitted to the manual input unit is transmitted to the output shaft via the speed reducer, in order to wind the shutter high, the handle or the chain as a power source is rotated a considerable number of times. Needed and required a lot of effort.

Further, in the case of a handle type, the handle must be rotated by inserting a handle shaft into a manual input section provided at the rear of the shutter switch. Usually, the switch is mounted in a narrow shutter case. Therefore, manual operation of the shutter requires turning the handle by inserting a hand or the like into the shutter inspection opening provided at the lower side after the switch, making it very difficult to wind up the shutter. If the camera was installed at a high place, the shutter winding work would have to be performed at a high place, which was dangerous.

[0006]

[Problems to be solved by the invention]

 The present invention solves the above-mentioned problem of `` a great deal of labor is required to wind up the shutter, and it is difficult to wind up the shutter '', and provides a new manual operating device for a switchgear. Aim.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention has a manual input unit that enables manual operation of a shutter open / close device, and a shutter in which rotation given to the manual input unit is transmitted to an output shaft via a speed reducer. The switch comprises a combination of a portable electric motor having an electric output unit, and a flexible power transmission member for connecting the manual input unit and the electric output unit.

[0008]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described.

FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 shows a plan view of part A.

In the shutter opening / closing device 1 having a manual input section 5 that can perform a shutter winding operation by manual operation, a portable electric motor 3 serving as a power source for rotating an output shaft 4 of the shutter opening / closing device 1 The rotary shaft 8 of the portable motor 3 and the actuator b7 at one end of the power transmission member 2 are fitted and fixed, and by rotating the rotary shaft, the actuator b7 fixed to the rotary shaft rotates the same, The rotational motion is transmitted to the actuator a6 at the other end of the power transmission member 2.

The actuator a6 is fitted into the manual input unit 5 provided at the rear of the shutter switch 1 so as not to easily come out, and the rotation transmitted to the actuator a6 is transmitted to the manual input unit 5 and the shutter switch 1 Rotational motion is transmitted to the output shaft 4 via the speed reducer 9 inside, and the shutter can be wound up.

A general tool such as an electric screwdriver or an electric drill may be used for the portable electric motor 3. In this case, one end of the power transmission member 2 is used so that the general tool can be used. It is convenient that the actuator b7 has a structure in which a rod-like projection is formed from the center, and the projection can be fixed by being sandwiched by the tip of the output shaft of an electric screwdriver or an electric drill. (Fig. 2)

The power transmission member 2 is only required to be flexible and capable of transmitting rotational motion. For example, a part of a flexible shaft which is a rotational motion transmitting member generally used in equipment and the like is partially processed. In this case, both ends of the flexible shaft are processed into a structure that can be fitted to the manual input section 5 of the shutter opening / closing device 1 and the portable motor 3.

When these general tools are used in combination with some processing, the development cost can be reduced and the development time can be shortened.

Further, by using the flexible power transmission member 2, one end of the power transmission member 2 is fitted into the manual input section 5 of the shutter switch 1, and an inspection (not shown) provided at the lower rear side of the shutter switch. The other end of the power transmission member 2 is taken out of the mouth, fitted into the portable electric motor 3, and the rotating shaft 8 of the portable electric motor 3 can be rotated electrically to perform the winding operation of the shutter. Work can be performed without entering the case.

[0016]

[Effect of the invention]

 According to this invention, as described above, in the shutter opening / closing device in which the rotation transmitted to the manual input unit is transmitted to the output shaft of the switching device via the speed reducer, the portable power motor and the flexible power transmission are used. By combining the components into a shutter lifting device, the shutter lifting effort is significantly reduced compared to the handle type or chain type used conventionally, and the power transmission member has flexibility, so the shutter The effect is that the shutter can be easily rolled up even from outside the inspection port provided at the lower rear of the switchgear.

[0017]

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a plan view of a portion A showing an embodiment of the present invention.

[Explanation of symbols]

1. 1. Shutter opening and closing machine Power transmission member 3. Portable motor 4. Output shaft 5. Manual input section 6. Actuator a7. Actuator b8. Rotation axis 9. Decelerator

Claims (1)

[Utility model registration claims] 1. A shutter switch having a manual input unit capable of enabling manual operation of a shutter switch, and transmitting a rotational motion given to the manual input unit to an output shaft via a speed reducer in the shutter switch. And a portable electric motor having an electric output unit, and a flexible power transmission member connecting the manual input unit and the electric output unit.