JP3095657B2 - Operating tool for switchgear - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch operating tool which is detachably attached to a switch which is manually opened and closed, such as a mold condenser.

[0002]

2. Description of the Related Art Conventionally, as a switch operating tool which is attached to a switch only when a switching operation is required, there is a "switch open / close device" described in JP-B-56-19772. In order to use this device, the energy storage handle is first compressed by the energy storage handle, and then the locking pin is released by attaching the switching device to the switch to release the spring force of the energy storage spring. As a result, the open / close mechanism is driven by the released spring force, and the switch is opened / closed.

[0003]

However, in this opening and closing device, it is necessary to compress the storage spring by the storage handle in a single state before the operation. Therefore, when the opening or closing operation is completed and the closing or opening operation is to be continued, it is necessary to remove the switchgear, compress the energy storage spring again, and attach it again to the switchgear. Was troublesome. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a switch operating tool that can be easily handled.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a case body having the same switch mounting surface formed on the front and rear surfaces, and a case body pivotally supported in the front and rear direction within the case body. An input shaft having a connection portion formed on each of the front and rear surfaces, an output shaft having a connection portion formed on each of the front and rear surfaces, which is rotatably supported in a predetermined angle range in the front-rear direction in the case body, and a case; A spring pressing means in the main body for selectively holding the output shaft with respect to its two rotation ends so as to be able to contact and separate freely, and connected between the input shaft and the spring pressing means,
In conjunction with the rotation of the input shaft, the spring pressing means is deformed and stored in the first half stroke while separating the spring pressing means from the holding position of the output shaft at that time, and the spring pressure is released in the second half stroke. And an intermediate drive mechanism for forcibly rotating the output shaft to the other holding position.

[0005]

In the present invention, in use, the output shaft is held at one of the turning positions. Therefore, depending on the holding position of the contact drive shaft of the switch to be operated, the output shaft is located in front of the case body. After selecting the rear mounting surface, connect the contact drive shaft of the switch to the connection of the output shaft,
Attach the mounting surface of the case body to the switch to fix it. Next, when a handle or the like is connected to the connection portion of the input shaft and the input shaft is rotated in a rotatable direction, the intermediate drive mechanism operates in conjunction with the input shaft, and the first half of the rotation of the input shaft is rotated. Then, the spring pressing means is deformed to start accumulating pressure. When the rotation of the input shaft is in the latter half, the spring pressure accumulated so far is released, and the spring pressing means forcibly rotates the output shaft to the other rotation end at a stretch.

Accordingly, the contact drive shaft of the switch connected to the output shaft is also instantaneously moved from one holding position to the other holding position, and the contact is switched. Next, when trying to return the contact state of the switch to the original state before the operation, if the input shaft is rotated in the opposite direction by operating the handle or the like, the output shaft is completely operated in the same manner. Rotated to the other end, the contact drive shaft of the switch instantaneously returns to the original holding position. Thereafter, by repeating the operation of the input shaft, the switch can be switched to the open or closed contact state. When these contact switching operations are completed, the switch operating tool is removed from the switch.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing one holding position of a switch operating tool according to an embodiment of the present invention.
(B) shows a state viewed from the right side, and (c) shows a state viewed from the back. FIG. 2 shows a state after operating from the state of FIG. 1 and switching to the other holding position. In both figures, reference numeral 1 denotes a box-shaped case main body, which penetrates the front and rear surfaces, supports the output shaft 2 at the center in the upper left-right direction, and supports the input shaft 3 at the lower right position. doing.

[0008] Both ends of the output shaft 2 projecting from the case main body 1 are subjected to a slot cutting process, and are connected to a contact drive shaft (not shown) of a switch when used. That is,
It becomes a connection part of the output shaft 2. Similarly, the input shaft 3 also protrudes from the case body 1, and an operation handle (not shown) is attached at the time of use. Both ends of this input shaft 3 are input shaft 3
Connection part. Here, although not shown, the case main body 1 is formed with bolt mounting holes, mounting legs, and the like for fixing to the switch during use.

A rectangular lever 4 having a recess 4a formed on one long side is integrally fixed to one end of the output shaft 2 in the case body 1. A hollow outer shaft 5 is fitted on the other side of the output shaft 2. Lever 4 of outer shaft 5
A double clevis 6 is formed on the outer peripheral portion on the side. Further, a sector-shaped lever 7 is integrally fixed in the radial direction to the outer peripheral portion on the other end side of the outer shaft 5. A concentric long hole 8 is formed in the outer periphery of the lever 7.

A bracket 9 having a notch formed in the front-rear direction is provided on the inner bottom surface of the case body 1 and directly below the output shaft 2. A notch of the bracket 9 is engaged with a pin 11 having a slide hole having a slide hole in the middle in the diameter direction. A rod 12 is slidably fitted into the slide hole of the pin 11, and the upper end of the rod 12 is provided with a double clevis 6 of the outer shaft 5.
Are rotatably connected to each other by a pin 13.

A compression coil spring 14 is provided outside the rod 12.
The lower end thereof is in contact with the pin 11 and the upper end thereof is in contact with the upper part of the rod 12. One end of the pin 13 pivotally supported by the double clevis 6 protrudes toward the lever 4 and comes into contact with the recess 4 a of the lever 4. An arm 15 is integrally fixed to one end of the input shaft 3 in the case main body 1, and a link 1 is connected to a tip of the arm 15 via a pin 16.
7 are connected. The other end of the link 17 is engaged with the long hole 8 of the lever 7 via a pin 18.

Next, the operation will be described. FIG. 1 (a)
In the state (1), the lever 4 integrated with the output shaft 2 is in a posture of lowering to the right, and the output shaft 2 is rotated clockwise and held at the end position. In this state, an operation handle (not shown) is attached to one side of the input shaft 3, and a contact drive shaft (not shown) of a switch is attached to the output shaft 2 on the side opposite to the attachment side of the operation handle. The case body 1 is fixed. Next, when the input shaft 3 is rotated counterclockwise by the operation handle, the link 17 connected to the arm 15 moves downward.

Then, since the pin 18 at the upper end of the link 17 is in contact with one end of the long hole 8 of the lever 7, the lever 7 fixed to the outer shaft 5 is rotated counterclockwise. When the lever 7 rotates, the double clevis 6 formed on the outer shaft 5 also rotates, and presses the rod 12 connected via the pin 13 downward. Thereby, the spring 14 fitted on the rod 12 is compressed. That is, with the rotation of the input shaft 3, the spring 14 starts to be compressed, and the spring 14 is compressed and the spring force is accumulated until the output shaft 2, the pin 13, the rod 12, and the pin 11 reach an intermediate position where they are aligned. .

Here, when the input shaft 3 is further rotated and exceeds the intermediate position, the spring force stored in the spring 14 is released, and the rod 12 starts moving upward and to the right.
The rotation of the double clevis 6 is accelerated. As a result, the outer shaft 5 starts to rotate counterclockwise at a stretch, and the pin 13 of the double clevis 6 moves while drawing a circular locus about the output shaft 2, and hits the other concave portion 4 a of the lever 4. The output shaft 2 is rotated counterclockwise by pressing and moving the lever 4. As a result of the rotation, the state shown in FIG. 2 is obtained, and the contact drive shaft (not shown) of the switch to which the output shaft 2 is connected is simultaneously rotated counterclockwise to switch the contacts.

In the above-described operation, when the outer shaft 5 rotates ahead of time after the pin 13 or the like exceeds the intermediate position,
The lever 7 rotates first, but the lever 7 and the link 17
Since the engaging portion of the upper end with the pin 18 is the elongated hole 8, the pin 1
The engagement between the lever 8 and the lever 7 becomes free, and no spring force is transmitted to the input shaft 3.

Next, a case where the state of FIG. 2 is returned to the state of FIG. 1 will be described. The input shaft 3 is operated by the operation handle.
When rotated clockwise, the link 17 connected to the arm 15 moves upward. Then, since the pin 18 at the upper end of the link 17 is in contact with the other end of the long hole 8 of the lever 7, the lever 7 fixed to the outer shaft 5 is rotated clockwise. When the lever 7 rotates, the double clevis 6 formed on the outer shaft 5 also rotates, and the pin 13
The rod 12 which is connected via is pressed downward. Thereby, the spring 14 fitted on the rod 12 is compressed, and the spring force is stored.

Here, when the input shaft 3 is further rotated and exceeds the intermediate position, the spring force stored in the spring 14 is released, and the rod 12 starts moving upward and to the left.
The rotation of the double clevis 6 is accelerated. As a result, the outer shaft 5 starts to rotate clockwise at once, and the pin 1 of the double clevis 6
3 moves while drawing a circular locus about the output shaft 2, contacts the other concave portion 4 a of the lever 4, and further presses and moves the lever 4 to rotate the output shaft 2 clockwise. As a result, the contact drive shaft (not shown) of the switch to which the output shaft 2 is connected is turned at once in a clockwise direction, and the contact is switched to the original state.

In this manner, the switch operating tool of the embodiment merely rotates the input shaft 3 halfway in both directions, and thereafter the output shaft 2 is bidirectionally driven by the internal spring 14 at a constant torque every time. It is possible to be rotated at a high speed, and the operability is excellent. In addition, since the connecting portions of the output shaft 2 and the input shaft 3 are formed on both surfaces of the case body 1 and the output shaft 2 is located at the center of the case body 1 in the left-right direction, it is possible to connect to the switch on both front and rear surfaces. , Easy to use. It is also possible to form a square hole such as a square or hexagon at both ends of the output shaft 2 and the input shaft 3 to connect a handle shaft or a contact drive shaft.

[0019]

As described above, according to the switch operating tool of the present invention, the front and rear surfaces of the case main body are used as the mounting surfaces, and the connecting portion of the output shaft is disposed at the center position thereof. The front and rear surfaces of the case main body can be selectively used according to the contact state, so that the operating tool can be mounted as it is regardless of the contact state of the switch. This eliminates the need for a preparatory operation before mounting, and improves usability as compared with the conventional example. Further, even after the attachment, by repeating the rotation operation of the input shaft in both directions, it is possible to continuously switch the contact drive shaft of the switch connected to the output shaft, thereby improving operability.
Furthermore, if there are a plurality of switches and all switches need to be operated only in one of “from on and off” or “from off and on”, the preparatory operation before mounting is not performed, and the case body is simply used. By repeatedly attaching the front and rear sides of the to each other, it is possible to continuously perform "from off to on" or "from off to on" operations,
Usability improves.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of an embodiment of the present invention.

FIG. 2 is a sectional view showing another holding state operated from the state of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Output shaft 3 Input shaft 4a Recess 4 Lever 5 Outer shaft 6 Double clevis 7 Lever 8 Long hole 9 Bracket 11 Pin with slide hole 12 Rod 13 Pin 14 Compression coil spring 15 Arm 16 Pin 17 Link 18 Pin

Claims (1)

(57) [Claims] 1. A case body in which the same switch mounting surface is formed on the front and rear surfaces, an input shaft pivotally supported in the front-rear direction within the case body, and connection portions formed on front and rear surfaces, respectively. An output shaft that is rotatably supported in the front-rear direction within a predetermined angle range in the main body and has connection portions formed on the front and rear surfaces, and the output shaft in the case body with respect to both rotation ends thereof A spring pressing means for alternatively and freely pressing and holding, and being connected between the input shaft and the spring pressing means, and interlocking with the rotation of the input shaft, holding the spring pressing means at the current output shaft holding position An intermediate drive mechanism that deforms and accumulates the spring pressing means in the first half stroke while separating from it, releases the spring pressure stored in the spring pressing means in the second half stroke, and forcibly rotates the output shaft to the other holding position. Switch operating tool characterized by comprising