JPH06349384A - Operation device of switch - Google Patents

Abstract

PURPOSE:To provide the operational mechanism of a switch, which has simple structure, which can be formed in a compact form, the operation of which is simple, and which is easily manufactured by operating the operational mechanism of switch by one shaft serving as a main shaft as well as an operational shaft. CONSTITUTION:A small bevel gear 30 and a bevel gear 31 with female screw are driven by the rotation of an electric motor 29, and a screw main shaft 32 is lowered to compress an operational spring 35 and energy is accumulated. The upper end of the oblong hole 45 of an oblong hole link 43 pushes an operational pin 41 down, and an off-position holding hook 39 is removed, and an operational lever 3 is rotated clockwise along with a main shaft 9 by the released energy of the operational spring 35. The operational lever 3 is abutted on a stopper 47 at an on-position in relation to a first terminal, and is stopped and held at the on-position by an on-position holding hook 40. The operational spring 35 is extended and energy is accumulated by the elevation of the screw shaft 32. The lower end of the oblong hole 46 of an oblong link 44 raises an operational pin 42, and the on-position holding hook 40 is removed, while an operational lever 33 is rotated counterclockwise along with the main shaft 9 by the released energy, is abutted on a switch lever 36 at an off-position and stopped, and is held at the off-position by an off-position hook 39.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating mechanism of a switch, and particularly, it has a function of a disconnecting switch and a function of a grounding position, and is turned on (closed).
The present invention relates to a spring-type operating mechanism for a three-position switch that operates three position states of cutting (opening) and grounding with a single operating device.

[0002]

2. Description of the Related Art A disconnector with a grounding device is constructed to have both a disconnector and a grounding device, and one operation is performed in three position states: on (closed), off (open) and grounded. As a so-called three-position switch spring type operation mechanism (hereinafter simply referred to as an operation mechanism) performed by the operation device, there is an operation mechanism illustrated in FIGS. 7 to 9. This operating mechanism is mounted on the disconnector 1 with a grounding device as shown in FIG.

The disconnector 1 with a grounding device has an operating mechanism 3 installed below a disconnector body 2.

The disconnector body 2 has a first terminal 4 and a second terminal 6
And the third terminal 5 are provided, and the first terminal 4 and the ground terminal (third terminal) 5 are arranged at predetermined internal positions, and the second terminal 6 is movable by switching the first terminal 4 and the third terminal 5. It is connected to terminal 7.

The movable terminal 7 is moved by the link mechanism 8 interlocking with the operation mechanism 3 to the cut position indicated by the solid line in the figure and
The switching operation is performed between the grounding position connected to the grounding terminal 5 shown by the dotted chain line and the entry position shown by the three-dotted chain line.

This switching operation is performed by the operating mechanism 3 which operates quickly by utilizing the energy stored in the spring in order to minimize damage caused by arcing.

The operating mechanism 3 is constructed as shown in FIGS. 8 and 9. The operating mechanism 3 includes a main shaft 9 and a first operating shaft 1.
It has 0 and the 2nd operation axis 11.

The first operating shaft 10 and the second operating shaft 11 include
The spring levers 12 and 13 are fitted to each other, and the spring member 14 formed of a compression coil spring is mounted between the two spring levers 12 and 13. That is, one end of the spring member 14 is pivotally attached to the free end of the one spring lever 12, and the other end of the spring member 14 is pivotally attached to the free end of the other spring lever 13.

A main lever 15 formed in a hook shape is pivotally attached to the main shaft 9. A pin 16 is projectingly provided on the free end of one projecting piece 15a of the main lever 15.

Further, the root end of the first elongated hole link 18 is pivotally attached to the free end portion of the first link lever 17 fitted on the first operating shaft 10, and the tip end portion of the first elongated hole link 18 is attached. The pin 16 is movably inserted into the long hole 19 provided. Along with this, the root end of the second elongated hole link 21 is pivotally attached to the free end of the second link lever 20 fitted to the second operation shaft 11,
The pin 16 is inserted into the slot 24 provided at the tip of the slot link 21.
The main lever 15 is interlocked by movably inserting.

A part of the link mechanism 8 of the disconnector is pivotally attached to the free end of the other projecting piece 15b of the main lever 15 so as to interlock with the free end. Incidentally, 23, 26, 27 and 28 are stoppers.

Next, the operation of the above-mentioned conventional apparatus will be described.

In this device, the first operating shaft 10 is rotated counterclockwise to switch from the off state to the grounded state, and the second operating shaft 11 is rotated counterclockwise. The design is based on the direction of movement so that the state changes from the off state to the on state.

First, in order to shift from the OFF state shown in FIG. 7 to the ON state shown in FIG. 8, the second operating shaft 11 is rotated counterclockwise by a manual operating device or an electric operating device (not shown). According to this operation, the spring lever 13 rotates counterclockwise to store the spring member 14, and
The second elongated hole link 21 pivotally attached to the link lever 20 moves leftward in the drawing, but the pin 16 can move in the elongated hole 24, so that the main lever 15 is stationary. Further, the spring lever 13 is rotated to move to a dead point 2 on the mechanism.
When it exceeds 2, the spring lever 13 vigorously rotates due to the release of the stored energy, and the spring lever 13 contacts the stopper 23 and stops. On the other hand, the end of the elongated hole 24 comes into contact with the pin 16 and swivels the main lever 15 clockwise to reach the insertion position. In connection with this operation, the disconnector also shifts from the off state to the on state.

The operation of shifting from the ON state to the OFF state is the reverse of the above.

Next, description will be given of the case of shifting from the off state shown in FIG. 7 to the grounded state shown in FIG. In this case,
The first operating shaft 10 is rotated counterclockwise by a manual operating device or the like (not shown). Then, the spring lever 12 rotates counterclockwise to store the spring member 14, and
The first elongated hole link 18 pivotally attached to the first link lever 17 moves to the right in the figure, but the pin 16 can move in the elongated hole 19, so that the main lever 15 is stationary. Further, the spring lever 12 rotates, and the spring lever 1
2 hits the stopper 26 and stops. On the other hand, the end of the elongated hole 19 comes into contact with the pin 16 and swivels the main lever 15 counterclockwise to reach the grounding position. The disconnecting switch associated with this operation also shifts from the off state to the grounded state.

The operation of shifting from the grounded state to the off state is the reverse of the above.

[0018]

In the conventional switch operating mechanism as described above, the angles formed by the elongated holes 19 and 24 of the two first elongated hole links 18 and the second elongated hole links 21 are reduced. , The frictional force between the first elongated hole link 18 and the second elongated hole link 21 during the operation of the mechanism becomes smaller as the mechanism is closer to parallel, and a smooth operation can be obtained.
The elongated hole link 18 and the second elongated hole link 21 are arranged such that the angles formed by the elongated holes are close to parallel.

Therefore, the angle formed by the line segment connecting the main shaft 9 and the first operation shaft 10 and the line segment connecting the first operation shaft 10 and the second operation shaft 11 becomes an acute angle (about 130 degrees). The distance between the main shaft 9 and the second operation shaft 11 becomes significantly longer than the distance between the main shaft 9 and the first operation shaft 10. As a result, the total length of the second elongated hole link 21 becomes long, there is a lot of wasted space and the volume is large as a whole structure, and there is a problem that the production cost becomes high.

Further, the second elongated hole link 21 has the spring member 1
Since the first operation shaft 10 and the second operation shaft 11 respectively intersect with the shaft of No. 4, the spring lever and the first link lever, or the spring lever and the second link lever have a total of 4 in total.
There is a problem that two levers are needed and the number of members increases.

Further, in the mechanism as a whole, the operating angle of each lever and link is slanted, and there are few parts that operate vertically or in parallel, so it is difficult to determine the angle of each member in terms of mechanical design, and assembly is also difficult. In this case, there is a problem that it is difficult to adjust the stroke of the long hole link or the like.

In addition to the main shaft, two operating shafts are required, the structure becomes large, and many parts are required.

In view of the above points, the present invention is capable of operating with a single shaft that also serves as a main shaft and an operating shaft, has a simple structure and can be miniaturized, has a simple operation, and is easy to manufacture and inexpensive. The purpose is to newly provide an operating mechanism for a switch.

[0024]

Means for solving the above-mentioned problems in the present invention is to arrange a first terminal and a third terminal, and to insert (close) these first terminal and third terminal respectively. In a switch operating device that includes a second terminal connected to a movable terminal to be cut (opened), the movable terminal being driven by a main shaft of an operating mechanism via a lever, a link, or the like, by an operating electric motor or manually. Drive operating means for vertically moving a screw shaft screwed into the female screw gear through the female screw gear, and a screw mounted between the tip of an operating lever for rotating the main shaft and the end of the screw shaft. Rotating operation means for rotating the main shaft by releasing the operation spring which performs compression energy storage and tension energy storage by vertical movement of the shaft, and on / off positions for opening / closing operations of the first terminal side and the third terminal side. Hold the holding hook on the left and right sides of the tip of the operating lever. A position holding means which is disposed in a substantially symmetrical shape, holds an operation lever by holding one of an on-position holding hook or an off-position holding hook to store an operation spring, and holds it by the other holding hook after being released; The operation spring is compressed and stored by the vertical movement of the screw shaft, and is held in the ON (or OFF) position when the energy is stored. The retaining hook is disengaged and released, and then the OFF (or ON) position is released. Holding hooks are held by the holding hooks to enable tension storage, and when the tension storage is completed, the holding (hook) position holding hooks are disengaged, and the operating lever rotation range is restricted. And selection means for selecting the opening / closing operation on the first terminal side or the third terminal side.

Further, the present invention is characterized by comprising opening / closing means which operates at the upper and lower limit positions of the screw shaft and the energy storage completion position of the operation spring.

[0026]

The switching lever is used to select whether to perform the opening / closing operation with the first terminal or the opening / closing operation with the third terminal. When the former is selected, the switching lever is operated by the holding pin. Hold it in the switching position and move the screw shaft downward to store the operating spring. When the operation spring is energized, one end of the long hole of the long hole lever pushes down the operation pin to remove the cut position holding hook, and when the hook is removed, the operation spring is released and the main shaft is released via the operation lever. Is rotated to the insertion position of the first terminal. Next, the screw shaft is moved up and down to store the operation spring. When the operation spring is energized, one end of the long hole of the long hole lever pulls up the operation pin to remove the insertion position holding hook, and when the hook is removed, the operation spring is released and the main shaft is moved through the operation lever. Rotate to the off position. Also in the latter case, the opening / closing operation with the third terminal can be performed in the same manner.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 is an explanatory view of a basic operation showing an embodiment of the present invention. In FIG. 1 (A), 29 is an output shaft of a small bevel gear 3.
An operating electric motor with 0 fitted therein, 31 is a bevel gear with a female screw that is driven by a small bevel gear 30 and vertically moves a screw shaft 32, and these form a drive operating means. 9 is the main shaft,
33 is an operating lever fitted to the main shaft 9, 34 is a pin projecting from the free end of the lever 33, and 35 is an operating spring, one end of which is pivotally attached to the pin 34 and the other end is the screw shaft 3
It is pivotally attached to the support pin 63 at the lower end of 2 and forms the turning operation means of the main shaft 9. 36 is a switching lever for selecting whether to perform opening / closing operation with the first terminal or opening / closing operation with the third terminal, 37 is a stop pin, 38
Is a stop pin return spring, which forms a switching selection means. 39 is a hook for holding the cut position on the first terminal side, 4
Reference numeral 0 denotes the same insertion position holding hook, 48 denotes the third terminal side off position holding hook, and 49 denotes the same insertion position holding hook. These position holding hooks are operation pins 41, 4 for removing the hooks to the free end side.
2 and 50, 51 are planted, and these form the position holding means of the operating lever 33. 43 and 44 are long holes 4 into which the operation pins 41 and 42 are movably inserted at the tips.
5, 46, and a long-end link on the side of the first terminal, the root end of which is pivotally attached to the support pin 63 at the lower end of the screw shaft 32,
53 has elongated holes 54 and 55 into which operation pins 50 and 51 are movably inserted, and a root end of which is attached to a support pin 63 of the screw shaft 32. The holding hook operating means for operating the position holding hooks is formed by them. 47 and 56 are the first of the operating lever 33
And a stopper on the side of the third terminal. The position holding means and the holding hook operating means on the first terminal side and the third terminal side are substantially symmetrical in shape.

Next, the operation of the apparatus of the present example configured as described above will be described with reference to FIG.

FIG. 1 is a view showing a state in which the opening / closing operation with the first terminal is selected. In FIG. 1 (A), the screw shaft 32 is lowered to store the operation spring 35. When the operation spring 35 is energized, the upper end of the long hole 45 pushes down the operation pin 41, the cut position holding hook 39 is removed, and the operation lever 33 rotates clockwise with the main shaft 9 by the urging force of the operation spring 35. Then
At the insertion position with the first terminal, it stops by hitting the stopper 47, and is held at the insertion position by the insertion position holding hook 40 as shown in FIG.

In FIG. 1B, the screw shaft 32 is raised to store the operation spring 35. When the operation spring 35 is charged, the lower end of the elongated hole 46 pulls up the operation pin 42, the insertion position holding hook 40 is removed, and the operation lever 33 rotates counterclockwise together with the main shaft 9 by the release force of the operation spring 35. Then, it stops by hitting the switching lever 36 at the cut position, and is held at the cut position by the cut position holding hook 39 as shown in FIG.

When the opening / closing operation with the third terminal is selected, the switching lever 36 is rotated counterclockwise to move the pin 34.
Is engaged with the cut position holding hook 48. Switching lever 36
It is held by the stop pin 37 which is pressed against the selected position by the stop pin return spring 38.

The on / off of the third terminal is performed in the same manner as the on / off of the first terminal. That is, in FIG. 1 (A), the screw shaft 32
When the operation spring 35 is stored, the upper end of the elongated hole 54 pushes down the pin 50, the cut position holding hook 48 is removed, the operation lever 33 is rotated counterclockwise, and the third terminal is inserted. At the position, it stops by hitting the stopper 56, and is held at the entry position by the entry position holding hook 49.

In FIG. 1B, the screw shaft 32 is raised,
When the operation spring 35 is charged, the lower end of the long hole 55 pulls up the operation pin 51, the insertion position holding hook 49 is removed, the operation lever 33 is rotated clockwise, and the switching lever 3 is turned to the off position.
6 and stops and is held in the cut position by the cut position holding hook 48.

In the above description of operation, if the connecting lever 57 shown by the chain double-dashed line is fitted to the main shaft 9 in FIG. 1 and connected to the link mechanism 8 in FIG. 7, the third terminal is read as a ground terminal. As such, the grounding device shown in FIG. 7 serves to explain the operation of the disconnector.

The operating mechanism of the switch described above is shown in FIGS.
Similar to the conventional operation mechanism illustrated in FIG. 9, the operation spring is energized and then turned on or off, but in the following, the operation spring is energized after the on or off operation and the next operation is performed. The operating mechanism provided in the above will be described.

FIG. 2 is an explanatory view showing another embodiment of the invention.
In FIG. 2A, 58 is an upper limit position, 59 is a lower limit position,
Reference numeral 60 is a tension energy storage completion position of the spring member, 61 is a position switch operating at each position of the compression energy storage completion position of the spring member, and 62.
Is a piece attached to the lower end of the screw shaft 32 for operating each position switch. The other parts are exactly the same as in FIG.

FIG. 2 shows a case where the opening / closing operation with the first terminal is selected. The screw shaft 32 is lowered to complete the compression accumulation of the operation spring, and the position switch (abbreviated as LS hereinafter) 61. Is operated to operate the electric motor (hereinafter simply referred to as electric motor) 29
2A showing the state in which the motor has stopped, the electric motor 29 further lowers the screw shaft 32 by the closing operation signal of the first terminal. The operation pin 41 is pushed down by the upper end of the long hole 45, the cut position holding hook 39 that has locked the operation lever 33 via the pin 34 is released, and the operation lever 33 is rapidly moved clockwise by the operation spring 35. It is rotated, stops at the insertion position with the first terminal by hitting the stopper 47, and is held at the insertion position by the insertion position holding hook 40. On the other hand, when the screw shaft 32 descends to the lower limit position, the LS 59 operates to rotate the electric motor 29 in the reverse direction, the screw shaft 32 rises, and the operation spring 35 stores energy. When the LS 60 operates, the electric motor 29 stops, and
The state of (B) is obtained.

In FIG. 2B, the electric motor 29 further raises the screw shaft 32 in response to the opening operation signal of the first terminal.
The operation pin 42 is pulled up by the lower end of the elongated hole 46, the insertion position holding hook 40 is removed, and the operation lever 33 is rapidly rotated counterclockwise by the releasing force of the operation spring 35.
At the cut position with the terminal, it stops by hitting the switching lever 36, and is held at the cut position by the cut position holding hook 39. On the other hand, when the screw shaft 32 rises to the upper limit position, the LS 58 operates and the electric motor 29 rotates in the reverse direction, and the screw shaft 32 descends and the operation spring 35 moves.
Is stored up. When the LS 61 operates, the electric motor 29 stops, and the state shown in FIG.

The opening / closing operation with the third terminal is selected by the switching lever 36 in the same manner as described above, and the pin 34 of the operation lever 33 is engaged with the cut position holding hook 48.

The insertion / removal of the third terminal is performed by the cutting position holding hook 39 and the insertion position holding hook 4 at the time of the connection / disconnection of the first terminal.
0, a cut position holding hook 48, an input position holding hook 49, and a stopper 56 are used instead of the stopper 47, and the operation lever 33 rotates counterclockwise to hit the stopper 56 and stop, and the third terminal is turned on. It rotates in the direction and stops by hitting the switching lever 36 and disconnects from the third terminal, and the screw shaft 32, L
The relationship between S58 to S61 and the electric motor 29 is also the same as in the case of connecting / disconnecting to / from the first terminal, and a description thereof will be omitted.

FIGS. 3 to 6 show an embodiment of the configuration of the present invention for performing the above-described basic operation, showing a state in which an opening / closing operation with the third terminal is selected, and FIG. 3 shows a state in which the cover is removed. 1 is a front view, FIG. 4 is a sectional view taken along the line AA of FIG. 1, FIG. 5 is a sectional view taken along the line B, and FIG. 6 is a sectional view taken along the line CC.

It should be noted that parts having the same functions as those in FIGS. 1 and 2 are given the same reference numerals as those in these figures for easy understanding.

Therefore, 64 is a supporting member, and link frames 65 and 66 are attached to the lower surface of the supporting member 64 so as to face each other, as shown in FIG. As shown in the figure, the screw shaft 32 and the operating spring 35 are arranged between the link frames 65 and 66 and mounted between the spring receiving members 91 and 63 '. The main shaft 9 has the link frame 65,
A shaft 66 is pivotally supported, and an operation lever 33 and a switching lever 36 are fixed to the front surface side thereof as shown in FIG. A pin 34 is planted on the free end side of the operating lever 33, and a roller follower 34 'is provided on the pin 34. Further, on the outer peripheral edge of the switching lever 36, the first and second recesses 36 a and 36 b for fitting the stop pin 37, and the arc portion 36.
c, limit switch operating portions 36d and 36e are formed. As shown in FIG. 4, the stop pin 37 is supported by the link frames 65 and 66 so as to be slidable forward and backward, and has a large diameter portion 37a in a part of a small diameter rod. 38 is mounted so that the stop pin 37 is always urged to the right side in FIG. 4 (retracting direction). Then, in the state of the drawing, the large diameter portion 37a is fitted in the first recess 36a to hold the operation lever 33 at the position of the drawing. The state shown in the drawing is the case of performing the opening / closing operation on the third terminal 5 side (ground terminal side) of FIG. 7, but when switching from this state to the opening / closing operation with the first terminal 4 side, the stop pin 37 is The first recess 3 of the switching lever 36 is pulled out to the front side (left side in FIG. 4).
6a and the large diameter portion 37a are disengaged, the main shaft 9 is engaged with the operation handle OH (FIG. 6), and the main shaft 9 is rotated clockwise in FIG.
When the second concave portion 36b reaches the position of the stop pin 37 after passing through the circular arc portion 36c, the large diameter portion 37a of the stop pin 37 of the concave portion 36b engages and holds that position.

Support pins 63 for supporting the operating spring 35 and the long hole links 43.44, 52, 53 are vertically movable in the vertical grooves 67, 68 provided in the frames 65, 66 on the link frames 65, 66. Has been inserted into. Long holes 45, 46, 54, 5 of the long hole links 43, 44, 52, 53
5, operation pins 41, 42, 50, 51 are slidably inserted, respectively, and the cut position holding hooks 39, 48 are connected to the operation pins 41, 50 via the hook pins 69, 71, and the entry position holding hook 40. , 49 are operated pins 42, 51 (the long hole links 43, 52 in FIG. 1) via the hook pins 70, 72.
The back side of) is connected. And each hook pin 6
Hook return springs 73 are elastically mounted on 9, 70, 71 and 72 to urge each holding hook in a predetermined direction.

The drive operating portion for rotating the screw shaft 32 is
A screw shaft spur gear 74 that is rotatable and cannot move up and down, is attached to the upper part of the support member 64, a female screw gear 75 fixed to the spur gear 74 and into which the screw shaft 32 is screwed, and attached to the female screw gear 75. A bevel gear 76, a small bevel gear 77 meshing with the bevel gear 76, a manual handle shaft 78 for manually operating the small bevel gear 77, and an operating electric motor 29 connected via a speed reducer 79 and the screw shaft. The spur gear 74 and the motor-side spur gear 80 meshed with the spur gear 74.

In the case where the driving operation section is manually operated,
The manual handle shaft 78 is operated by the handle, and in the case of using an electric motor, the operation electric motor 29 is driven to move the screw shaft 32 up and down for operation. The stop control of the operating electric motor 29 catches the completion of the operation by the auxiliary switch 81 adapted to be linked to the rotation operation of the main shaft 9 when the operation motor 29 is operated upward and downward, and stops by issuing a stop signal.

Further, although the operating electric motor 29 is mounted on the right side of the screw shaft 32 in FIGS. 3 and 5, it can be mounted on the left side, which corresponds to the space of the installation place.

Reference numeral 82 in the drawing denotes a link mounting frame, 8
3 is a cover and 84 is an on / off indicator.

[0050]

The operating mechanism of the switch according to the present invention having the above-described structure is different from the conventional operating mechanism that requires the first and second operating shafts in addition to the main shaft, and has only the main shaft. It is extremely simple, and a lever or link for connecting the main shaft and the first and second operation shafts is not required, and the number of parts and the volume of the mounting space are reduced, and the size can be reduced. Also, all design and manufacturing problems due to the large number of levers and links are eliminated.

Also in the case of electric operation, conventionally, an operating electric motor is provided on each of the first and second operating shafts to store the spring member in each of the forward and reverse directions and release the spring member during the rotation. , A special shaft joint that transmits torque during power storage and slips during power release is required, but in the case of the present invention, only the motor for energy storage of the operating spring is sufficient, and a special shaft joint is not required, so downsizing is possible. The cost can be reduced as well.

It is possible to easily select whether to insert / disconnect with the first terminal or with the third terminal by rotating the switching lever. Is performed by removing the on / off position holding hooks symmetrically arranged about the line connecting the switching lever and the main shaft, so that both the on / off operation with the first terminal and the on / off operation with the third terminal are performed. The operation is exactly the same, and since it has a simple configuration, it is unlikely to cause a failure.

Since the on / off position holding hook is disengaged by a long-hole link interlocking with a screw shaft for accumulating the operating spring, no special dismounting device is required, the number of parts is reduced, and the structure is simple. Has been converted.

Further, in the case where the operation spring energy storage completion position switch is provided, unlike the case where the operation spring is energy-stored and turned on and off after receiving a closing or opening operation signal, Since the operation spring is stored and the following operation is provided, the operation time from receiving the closing or opening operation signal to completing the on / off operation can be shortened.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a basic operation of an embodiment of the present invention. (A)
Is a state diagram after the operation lever is turned off. FIG. 6B is a state diagram after the operation lever is inserted.

FIG. 2 is an explanatory diagram of a basic operation of another embodiment of the present invention.
FIG. 7A is a state diagram in which a spring member is in a stored state at a cut position of an operation lever. (B) is a state of energy storage of the spring member at the position where the operation lever is inserted.

FIG. 3 is a front view of the configuration of an embodiment of the present invention.

FIG. 4 is a sectional view taken along the line AA of FIG.

FIG. 5 is a view on arrow B of FIG.

FIG. 6 is a sectional view taken along the line CC of FIG.

FIG. 7 is a block diagram of a disconnecting switch with a grounding device equipped with a conventional operating mechanism.

FIG. 8 is an explanatory diagram of a conventional operating mechanism.

FIG. 9 is an explanatory view of a conventional operating mechanism.

[Explanation of symbols]

 7 ... Movable terminal 9 ... Main shaft 32 ... Screw shaft 33 ... Operating lever 34 ... Pin 35 ... Operating spring 36 ... Switching lever 37 ... Stop pin 39, 48 ... Cut position holding hook 40, 49 ... In position holding hook 41, 42, 50, 51 ... Operation pin 43, 44, 52, 53 ... Long hole link 45, 46, 54, 55 ... Long hole 58, 59 ... Upper and lower limit position switch 57 ... Connecting lever 60, 61 ... Accumulation completion position opening / closing Device 63 ... Support pin 64 ... Support member 65, 66 ... Link frame 67, 68 ... Vertical groove 69, 70, 71, 72 ... Hook pin 73 ... Hook return spring 74 ... Screw shaft spur gear 75 ... Female screw gear 76 ... Bevel gear 77 ... Small bevel gear 78 ... Manual handle shaft 79 ... Reduction gear 80 ... Motor side spur gear 81 ... Auxiliary switch 82 ... Link mounting frame 83 ... Cover 84 ... On / off Ndiketa

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[Procedure amendment]

[Submission date] September 14, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction content]

Therefore, 64 is a supporting member, and link frames 65 and 66 are attached to the lower surface of the supporting member 64 so as to face each other, as shown in FIG. As shown in the figure, the screw shaft 32 and the operating spring 35 are arranged between the link frames 65 and 66 and mounted between the spring receiving members 91 and 63 '. The main shaft 9 has the link frame 65,
As shown in FIG. 3, the operation lever 33 is fixed to the front side of the shaft 66, and the switching lever 36 is rotatable.
Is attached to. A pin 34 is planted on the free end side of the operating lever 33, and a roller follower 34 ′ is attached to the pin 34.
Is provided. Further, on the outer peripheral edge of the switching lever 36, the first and second recesses 36 for fitting the stop pin 37 are inserted.
a, 36b, arc portion 36c, limit switch operating portion 3
6d and 36e are formed. As shown in FIG. 4, the stop pin 37 is supported by the link frames 65 and 66 so as to be slidable forward and backward, and has a large diameter portion 37a in a part of the small diameter rod. 38 was loaded,
The stop pin 37 is always urged to the right side in FIG. 4 (retracting direction). Then, in the state of the drawing, the first concave portion 36a
The large-diameter portion 37a is fitted in to hold the operation lever 33 at the position shown in the figure. The state shown in the figure is the case of performing the opening / closing operation on the third terminal 5 side (ground terminal side) in FIG. 7, but when switching from this state to the opening / closing operation on the side of the first terminal 4 the stop pin 37 is used. 3 is pulled out to the front side (left side in FIG. 4), the first recess 36a of the switching lever 36 is disengaged from the large diameter portion 37a, and the main shaft 9 is engaged with the operation handle OH (FIG. 6). When the second concave portion 36b rotates clockwise and passes the circular arc portion 36c and reaches the position of the stop pin 37, the large diameter portion 37a of the stop pin 37 of the concave portion 36b engages and holds that position. To do.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0045

[Correction method] Change

[Correction content]

Support pins 63 for supporting the operating spring 35 and the long hole links 43.44, 52, 53 are vertically movable in the vertical grooves 67, 68 provided in the frames 65, 66 on the link frames 65, 66. Has been inserted into. Long holes 45, 46, 54, 5 of the long hole links 43, 44, 52, 53
5, operation pins 41, 42, 50, 51 are slidably inserted, respectively, and the cut position holding hooks 39, 48 are connected to the operation pins 41, 50 via the hook pins 69, 71, and the entry position holding hook 40. , 49 are also cut position holding hooks 39, 4
The operation pin 4 via the hook pins 70 and 72 in the same manner as 8
2, 51 (on the back side of the long hole links 43, 52 in FIG. 1) are connected to each other ( or, alternatively, the hook pins 70, 72 are not shared but independently.
The hook pins 70 and 72 may be provided upright)
It A hook return spring 73 is elastically attached to each hook pin 69, 70, 71, 72 to urge each holding hook in a predetermined direction.

Claims (7)

[Claims] 1. A first terminal and a third terminal are arranged, and a second terminal is connected to a movable terminal that is inserted (closed) and cut (open) into the first terminal and the third terminal, respectively. In a switch operating device in which the movable terminal is driven by a main shaft of an operating mechanism via a lever, a link, etc., a screw shaft screwed into the female screw gear is vertically moved by an operating electric motor or a female screw gear. The driving operation means for rotating the main shaft and the release of the operation spring that is elastically mounted between the tip of the operation lever for rotating the main shaft and the end of the screw shaft to perform compression accumulation and tension accumulation by vertical movement of the screw shaft. A rotating operation means for rotating the main shaft by force and an on / off position holding hook for opening / closing each of the first terminal side and the third terminal side are arranged substantially symmetrically on the left and right sides of the tip end portion of the operation lever. The input position holding hook or the cutting position holding hook On the other hand, the operation spring is stored by holding the operation lever on one side, and the position holding means for holding the operation spring by the other holding hook after being released, and the operation spring is compressed and stored by the vertical movement of the screw shaft to complete the accumulation of energy It is released by disengaging the on (or off) position holding hook that is sometimes held, and after release, it is held by the off (or on) position holding hook to enable tension energy storage, and tension energy storage is completed. Holding hook operating means for disengaging the off (or on) position holding hook at times, and selection for selecting the opening / closing operation on the first terminal side or the third terminal side by restricting the rotation range of the operating lever An operating device for a switch, comprising: 2. The operating device for a switch according to claim 1, further comprising opening / closing means which operates at upper and lower limit positions of the screw shaft and a pre-accumulation position of the operation spring. 3. The drive operating means comprises a screw shaft spur gear fixedly mounted on an internal thread gear, a motor-side spur gear that meshes with the spur gear, and an operating electric motor that drives the motor-side spur gear. The switch operating device according to claim 1 or 2, which is characterized in that. 4. The rotating operation means is composed of two link frames attached to the support member so as to face each other, a main shaft pivotally supported by the frames, and an operation spring arranged between the opposite link frames. The switch operating device according to claim 1, 2 or 3, characterized in that. 5. The position holding means includes a first terminal side and a third terminal side.
The in-position holding hook and the off-position holding hook for each opening / closing operation on the terminal side are rotatably attached to the hook pin protruding on the opposite side of the facing link frame, and can be operated at one end of each holding hook. The operating device for a switch according to claim 1, 2 or 3 or 4, wherein the operating device is provided with a pin. 6. The holding hook operating means is provided with a vertical groove provided in two facing link frames, and is vertically movably inserted into the vertical groove and is connected to a screw shaft so that the holding hook operating means moves up and down by operating the screw shaft. The supporting pin that moves and the elongated hole links that operate the on-position holding hooks and the off-position holding hooks for opening / closing operations on the first terminal side and the third terminal side are arranged substantially symmetrically, and 2. An operation pin of each of the holding hooks is movably inserted into a long hole provided at the other end, and one end is pivotally attached to the support pin.
Alternatively, the switch operating device according to 2 or 3 or 4 or 5. 7. A switching lever provided on a main shaft and a switching lever provided on a link frame are supported by a link frame and movable in the main shaft direction, and a part thereof is large. Consists of a stop pin having a diameter portion and two recesses provided on the peripheral edge of the switching lever that engage the large diameter portion of the stop pin to fix the position of the switching lever and disengage the engagement when the stop pin is moved. The switch operating device according to claim 1, 2 or 3 or 4 or 5 or 6, characterized in that.