JP3210277B2 - Breaker handle operating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breaker handle operating device used for turning on and off a handle of a breaker by remote control.

[0002]

2. Description of the Related Art A conventional handle operating device for turning on and off a handle of a breaker by remote control converts a rotational motion of a forward / reverse rotating motor installed on a side of the breaker into a reciprocating linear motion by a worm gear or the like. The on / off operation is performed by moving the operation arm engaged with the handle of the vehicle.

[0003]

However, since this conventional device is a combination of a number of gears such as worm gears and racks, the mechanism is complicated and it is difficult to reduce the size, and there is a problem unsuitable for a small breaker. Was.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has been made to provide a handle operating device for a breaker whose mechanism is simple and which can be easily miniaturized. A handle operation arm is provided which is swung by a forward / reverse rotation motor in a swing direction of a handle of the breaker, and a handle grip provided on the handle operation arm is engaged with the handle of the breaker.
The cam plate on the rotating shaft of the forward / reverse rotating motor
The cam portion is provided with a bifurcated pressing portion operated by a handle.
A projection is provided on a bearing plate of an arm through a gap .

[0005] The handle operating device of the present invention has a structure in which the handle is provided by engaging the handle grip provided on the handle operating arm which is directly swung by the forward / reverse rotation motor with the handle of the breaker. It is simple and compact, and the number of components can be reduced compared to conventional products.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 is breaker 2
A handle operation arm for turning a handle 22 on and off, the handle operation arm 1 bending a metal plate into a U-shape, and a frame portion 3 provided with a handle grip portion 2 at a distal end extension portion;
Two bearing plate portions 4 vertically provided below the distal end and the proximal end,
4 is included. The handle operation arm 1 supports the two bearing plate portions 4 and 4 on a bearing 5 installed on the side surface of the breaker 21 so that the handle operation arm 1 can rotate in the swinging direction of the handle 22 of the breaker 21 as a whole. The bearing 5 can be formed by using the side plates 6b, 6b of the mounting frame 6a. A flexible engaging portion 2a for engaging with the handle 22 of the breaker 21 is attached to the handle grip 2 by swaging 2b. Thus, the handle operation device and the handle 22 are elastically linked.

Reference numeral 6 denotes a forward / reverse rotation motor provided between the two bearing plate portions 4 and 4 by a mounting frame 6a for rotating the handle operation arm 1. A cam plate 8 is provided on a rotating shaft 7 of the forward / reverse rotation motor 6, and the cam plate 8 presses a protruding piece 9 provided on one of the bearing plate portions 4 by bending inward and backward. It is made to face. The cam plate 8 includes pressing portions 8a and 8b facing the front and back surfaces of the projecting piece 9, respectively.
The pressing portion 8a presses the protruding piece 9 in the forward direction and the other pressing portion 8b presses the protruding piece 9 in the reverse direction by the forward / reverse rotation of the forward / reverse rotation motor 6 with a gap therebetween.

Reference numeral 10 denotes a slide arm which is slidably supported on the extension of the distal end of the frame 3 of the handle operation arm 1. At the distal end of the slide arm 10, the handle gripper 2 opens the distal end side. Is formed. 11 is a slide arm 10
Is always pressed to the breaker 21 side, and the handle grip 2 at the tip of the slide arm 10 is
The first handle 22 can be properly engaged.
The spring 11 is a coil pusher interposed between the inner surface of the notch 3a formed on one side of the base end of the frame 3 and the base of the slide arm 10, that is, the base of the overhanging piece 10a. It is made of a spring. The sliding arm 10 has a lower surface attached to and supported by the upper surface of the frame 3, and two pins 10 b, 10 b projecting from the lower surface of the sliding arm 10 are provided in the frame 3 by slots 3 b, 3 b. And is slidably supported by the frame 3. Reference numeral 12 denotes a cover of the handle operation device. Although the description of the limit switch and the circuit for controlling the forward / reverse stop of the rotation of the motor is omitted, the limit switch is used to detect the handle position, and the handle switch arm 1, the bearing plates 4, 4, the cam plate 8, etc. It is provided in.

Next, the operation of the handle operating device of the present invention will be described. First, to operate the handle 22 of the breaker 21 from OFF in FIG. 1 to ON in FIG.
When the forward / reverse rotation motor 6 installed in between is rotated by remote operation, and the cam plate 8 presses the protruding piece 9 provided on the one bearing plate portion 4 by bending inward, as shown in FIG. The bearing plate portions 4, 4 are rotated, and the handle grip portion 2 gripping the handle 22 provided at the distal end extension of the frame portion 3 swings in the ON direction to turn the handle 22 on. It is. Conversely, to operate the handle 22 from ON to OFF, the forward / reverse rotation motor 6 is rotated in the reverse direction, and the protruding piece 9 is pressed by the cam plate 8, and as shown in FIG. Reference numeral 4 denotes a rotating member that rotates the handle grip portion 2 that grips the handle 22 provided at the distal end extension of the frame portion 3 in the off direction to turn the handle 22 off.

When it becomes necessary to manually operate the handle 22 in an emergency, the slide arm 10 is
If the handle grip 2 is disengaged from the handle 22, the handle 22 can be freely operated manually.

FIG. 6 is a diagram showing the operating state of the cam plate 8, and FIG. 6A shows the cam plate 8 with the breaker turned on.
Is shown. From this state, the forward / reverse rotation motor 6 is operated to rotate the cam plate 8 counterclockwise. Generally, a large current flows from the stop state of the motor to the start and stable rotation of the motor. Here, as shown in (B), the forward / reverse rotation motor 6 is in a no-load state at the time of start and does not flow a large current. Then, after the rotation of the forward / reverse rotation motor 6 is stabilized, the pressing portion 8b of the cam plate 8 presses the protruding piece 9 to turn off the breaker as shown in FIG. Similarly, when the breaker is switched from the off state to the on state, (B)
As shown in FIG. 7, the forward / reverse rotation motor 6 is in a no-load state at the time of starting, and a large current does not flow. Thus, the cam plate 8
Since the gap is provided when the protruding piece 9 faces between the bifurcated pressing portions 8a and 8b, no load is always applied when the motor starts, that is, when the breaker is turned on and off, the operation is started. No power is required, there is no danger of motor inactivity, and no excessive starting current flows through the motor. Therefore, the power supply for the electronic circuit and the motor can be reduced in size, and a voltage drop does not occur during operation, and the operation is stable.

FIG. 7 shows the handle grip 2 and the breaker 21.
FIG. 8 is a side view showing the operating state of the handle 22 of the on,
The moving distance of the handle 22 between the off-states is l ₁ , whereas the moving distance of the handle grip 2 is such that the handle operation arm 1 is moved to the handle 2
It is preferable that the moving distance is longer than the moving distance between the on and off of the step 2, so that l ₂ is obtained. At this time, it is necessary to provide a relief of (l ₂ −l ₁ ) / 2, but the handle 22 and the handle operating device are resilient because the handle grip 2 is provided with the flexible engaging portion 2a. The stress applied to the bearing plates 4, 4 at the top dead center and the bottom dead center is released, the load on the handle 22 can be reduced, and the structure is simplified without the need for a clutch or the like. And breaker 21
Can be turned on and off accurately. In addition, besides this embodiment, a bendable engaging portion 2a is provided integrally with the handle grip portion 2, or an unbendable engaging portion 2a is elastically attached to the handle grip portion 2 using a spring or the like. Alternatively, the frame part 3 provided on the handle grip part 2 may be elastically attached to the bearing plate parts 4, 4 so as to be able to rotate slightly with respect to the bearing plate parts 4, 4.
It is only necessary that they are elastically linked to. Further, it is preferable to provide a gap between the handle 22 and the engaging portion 2a.

[0013]

As is apparent from the above description, the present invention operates the breaker handle by the swingable handle operation arm, so that the structure is simpler than that of the conventional product. The size can be reduced, and the number of parts can be reduced as compared with the conventional product. Further, as shown in the embodiment, if the handle operation arm is supported at two points by the two bearing plates, there is no backlash and there is no possibility of error movement. Therefore, the present invention greatly contributes to the industry as a solution to the problem of the conventional breaker handle operating device.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention in a state where a breaker is off, (A) is a partially cutaway front view, and (B)
Is a side view.

FIG. 2 is a view showing an embodiment of the present invention in a state where a breaker is turned on, (A) is a partially cutaway front view, and (B).
Is a side view.

FIG. 3 is a partially cutaway plan view showing a state where the handle grip is engaged with the handle.

FIG. 4 is a partially cutaway plan view showing a state where a handle grip is released from the handle.

FIG. 5 is a perspective view showing a handle operation arm.

FIG. 6 is a schematic diagram showing an operation state of a cam plate, and FIG.
Indicates an ON state, (B) indicates an operating state, and (C) indicates an OFF state.

FIG. 7 is a side view showing an operation state of the handle and the handle operation arm.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handle operation arm 2 Handle grip part 3 Frame part 4 Bearing plate part 5 Bearing 6 Forward / reverse rotation motor 7 Rotating shaft 8 Cam plate 9 Projection piece 10 Slide arm part 11 Spring 21 Breaker 22 Handle

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01H 71/70 H01H 73/02

Claims (4)

(57) [Claims] A handle operating arm (1) is provided on a side surface of a breaker (21) in a swinging direction of a handle (22) of a breaker (21) by a forward / reverse rotating motor (6). The handle grip (2) provided on the operating arm (1) is
Breaker handle engaged with handle (22) of (21)
In the operating device, the rotating shaft (7) of the forward / reverse rotating motor (6)
A cam plate (8) is provided on the
Pressure parts (8a) and (8b) to the bearing plate (4) of the handle operation arm (1).
A handle operating device for a breaker, characterized in that the protruding piece (9) provided faces through a gap . 2. A handle operating arm (1) comprising two bearing plate portions
Bearings installed on the side of the breaker (21) according to (4) and (4)
The handle operating device for a breaker according to claim 1, wherein the handle operating device is pivotally supported by (5). 3. The handle grip (2) is a handle operation arm.
3. The handle operating device for a breaker according to claim 1, wherein the device is slidably supported with respect to (1). 4. The handle operating device for a breaker according to claim 1, wherein the handle operating device is elastically linked to a handle (22) of the breaker (21).