JPH0631628Y2 - Switch operating device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a switch operating device in which a vacuum switch is manually opened and closed.

[Conventional technology]

A conventional switch operating device is constructed as shown in FIGS. 5 and 6, and FIG. 5 shows an open state and FIG. 6 shows a closed state.

In these drawings, (1) is an operating shaft that is rotated,
(2) is an operating lever whose central part is fixed to the operating shaft (1), (3)
Is a connecting lever whose central part is rotatably supported on the operating shaft (1), and (4) is an extension spring mounted between the lower end of the operating lever (2) and the lower end of the connecting lever (3). Is.

(5) is a shaft lever that is rotatably attached to the operating shaft (1) and is fixed to the connecting lever (3), and (6) is an operating part at the end of the shaft lever (5). The vertical movement opens and closes switches such as vacuum valves.

(7) and (8) are the first and second stoppers with which the side surfaces of the upper end of the operating lever (2) abut, and (9) and (10) are the first side with which the side surfaces of the upper end of the connecting lever (3) abut. The third and fourth stoppers.

In the open state of FIG. 5, the spring (4) expands the space between the lower ends of the operating lever (2) and the connecting lever (3),
The upper ends of both levers (2) and (3) are the first and third stoppers (7) and (9).
The open state of the switch is maintained at a position where the switch (6) is in contact with the switch and the operating part (6) moves upward.

In addition, the wipe spring between the operating part (6) and the switch is
Is biased upward.

Next, when the switch is turned on, when the operating shaft (1) is rotated clockwise, the spring (4) stores energy, and the lower end of the operating lever (2) is connected to the operating shaft (1) and the connecting lever ( When passing through the line connecting the lower ends of 3), the operation lever (2) rapidly turns clockwise due to the release of the stored spring (4), and the upper end contacts the second stopper (8). Upon contact, the connecting lever (3) rotates counterclockwise and the upper end contacts the fourth stopper (10), and the shaft lever (5) rotates counterclockwise together with the connecting lever (3). The actuating part (6) moves downward against the wipe spring to bring the switch into the closed state shown in FIG. 6, and the spring (4) holds the closed state.

Next, when the operation shaft (1) is opened in the closed state by rotating the operation shaft (1) counterclockwise, the spring (4) stores energy and then expands to the open condition shown in FIG.

[Problems to be solved by the device]

In the conventional switch operating device, the extension spring (4) requires a large extension force so that the shaft lever (5) does not rotate due to the wipe spring in the closed state, so that the drive shaft (1) cannot be rotated. There is a problem that a huge manual force is required.

The present invention has been made in consideration of the above points, and an object of the present invention is to provide a switch operating device that does not require a strong extension spring and that allows easy rotation of a drive shaft.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, a switch operating device of the present invention has a closing lever for opening and closing a vacuum switch by rotating a base to a left and a right by fixing a base to a main shaft, and a tip of the closing lever and the opening and closing. A wipe spring provided between the main shaft and the main shaft, the main shaft lever having a base portion fixed to the main shaft and located in the upper right direction of the main shaft, an elongated hole formed in the main shaft lever, and a manual operation located in the upper right position of the main shaft. An operation shaft which is rotated by the operation shaft, an operation lever whose base is fixed to the operation shaft and which is located below the operation shaft, and a coupling which is rotatably supported by the operation shaft and located below the operation shaft. A lever; an extension spring mounted between the tip of the operation lever and the tip of the connecting lever; first and second stoppers provided on the left and right of the connecting lever; Before the connection lever is provided A roller loosely mounted in the long hole, wherein the connecting lever contacts the first stopper and the roller is located at a left end portion of the long hole in the open state of the switch; In the closed state, the connecting lever comes into contact with the second stopper, the roller is located at the right end of the elongated hole, and the main shaft lever and the connecting lever are orthogonal to each other.

[Action]

The switch operating device of the present invention configured as described above is provided with a main shaft, a closing lever, a wipe spring, a main shaft lever, an elongated hole, an operating shaft, an operating lever, a connecting lever, an extension spring, a stopper, and a roller. Since the main shaft lever and the connecting lever are orthogonal to each other in the throwing state of the container,
The reaction force due to the accumulation of the wipe spring of the switch causes the closing lever,
When trying to rotate the main shaft lever via the main shaft, the rotation direction of the main shaft lever conforms to the connecting lever via the roller and is applied to the operation shaft. The operation of rotating the drive shaft is facilitated without requiring anything.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

1 and 2 are a front view and a side view in an open state, and a third view.
FIG. 4 and FIG. 4 are a front view and a side view of the charging state.

In these drawings, (11) is the main shaft, (12) is the main shaft
The closing lever is fixed to (11), (13) is a switch such as a vacuum valve, and (14) is a wipe spring provided between the tip of the closing lever (12) and the switch (13). The switch (13) is opened and closed by the vertical movement of the tip of the closing lever (12) caused by the rotation of the main shaft (11).

Reference numeral (15) is a spindle lever whose base is fixed to the spindle (11), and (16) is an elongated hole provided through the spindle lever (15).

(17) is the operation axis that is manually rotated, (18) is the operation axis
The operation lever with the base fixed to (17), (19) the operation shaft (17)
A connection lever that is rotatably supported on the
The extension spring is mounted between the tip of the (18) and the tip of the connecting lever (19).

(21) and (22) are first and second stoppers provided on the left and right sides of the connecting lever (19), and (23) is provided on the connecting lever (19) and mounted in the slot (16). It is Laura who was done.

Then, in the closed state shown in FIG. 3, the spindle lever (1
5) and the connecting lever (19) are orthogonal to each other.

Next, the operation of the above embodiment will be described.

First, in the open state shown in FIG. 1, the extension spring (20) causes the tip of the connecting lever (19) to expand relative to the tip of the operating lever (18), so that the connecting lever (19) moves to the first stopper ( 21), the roller (23) is located at the left end of the slot (16), the tip of the closing lever (12) is in the upper position, and the switch (13) is It is held open.

Next, when the operating shaft (17) is rotated in the clockwise direction at the time of closing, the connecting lever (19) abuts against the first stopper (21) and is stationary, so that the extension spring (20) is charged. , Operation lever (1
When the tip of (8) passes through the line connecting the operating shaft (17) and the tip of the connecting lever (19), the spring (20) suddenly releases the force and the connecting lever (19) rotates counterclockwise. It moves and comes into contact with the second stopper (22).

At this time, the roller (23) moves to the right and the spindle lever (15)
As the elongated hole (16) of the lever moves downward, the main shaft (11) rotates clockwise, and the tip of the closing lever (12) moves downward against the wipe spring (14), and as shown in FIG. The loading state shown in FIG. 4 is obtained.

In this closed state, the spindle lever (15) and the connecting lever (1
9) are connected by the roller (23) and are in the orthogonal state, the reaction force due to the accumulated force of the wipe spring (14) causes the closing lever (12) and the spindle.
Attempting to rotate the spindle lever (15) counterclockwise via (11), but the rotation direction of the spindle lever (15) is the connecting lever (19).
Is applied to the operation shaft (17) in conformity with, and is not applied to the extension spring (20).

Next, when opening the circuit from the closed state, when the operating shaft (17) is rotated counterclockwise, the extension spring (20) stores energy and the tip of the operating lever (18) is connected to the operating shaft (17). When passing through the line connecting the tip of the lever (19), the extension spring (20) suddenly releases the force, rotating the connecting lever (19) clockwise, and
9) comes into contact with the first stopper (21) and stands still.

At this time, contrary to the above-mentioned closing, the roller (23) also moves to the upper left along the elongated hole (16) by the clockwise rotation of the connecting lever (19), and the main shaft lever (15) is reversed. When it is rotated clockwise, the tip end of the closing lever (12) is moved upward and the switch (13) is opened, resulting in the open state shown in FIG.

[Effect of device]

The switch operating device of the present invention, as described above, is
(11), closing lever (12), wipe spring (14), spindle lever (1
5), long hole (16), operating shaft (17), operating lever (18), connecting lever (19), extension spring (20), stoppers (21), (22), roller (2
3), the main shaft lever (15) and the connecting lever (19) are orthogonal to each other in the closing state, so that the reaction force due to the accumulated energy of the wipe spring (14) causes the closing lever (12) and the main shaft (11). Even if you try to rotate the spindle lever (15) via the, the direction of rotation of the spindle lever (15) matches the connecting lever (19) via the roller (23), and it engages the operation shaft (17) and expands. The spring (20) is not burdened, the expansion spring (20) does not require a strong one, and the manual operation force of the operation shaft (17) can be reduced.

[Brief description of drawings]

1 to 4 show one embodiment of a switch operating device of the present invention, FIGS. 1 and 2 are front and side views in an open state, and FIGS. 3 and 4 are in a closed state. A front view and a side view, and FIGS. 5 and 6 are front views of a conventional example in an open state and a closed state. (11) ... Spindle, (12) ... Closing lever, (13) ... Switch, (14) ...
Wipe spring, (15) ... Spindle lever, (16) ... Slot, (17) Operating shaft, (18) ... Operating lever, (19) ... Connecting lever, (20) ... Extension spring, (21), (22) )… Stopper, (23)… Laura.

Claims (1)

[Scope of utility model registration request] 1. A closing lever which opens and closes a vacuum switch by a left and right rotation of which a base is fixed to a main shaft, and a wipe spring which is provided between a tip end of the closing lever and the switch.
A spindle lever having a base portion fixed to the spindle and positioned in the upper right direction of the spindle; and an elongated hole formed in the spindle lever,
An operating shaft located on the upper right of the main shaft and manually rotated, an operating lever having a base fixed to the operating shaft and located below the operating shaft, and a base rotatably supported by the operating shaft. A connecting lever located below the operating shaft, an extension spring mounted between the tip of the operating lever and the tip of the connecting lever, and first and second springs provided to the left and right of the connecting lever. A first stopper and a second stopper,
A roller provided in the connecting lever and loosely mounted in the elongated hole, wherein the connecting lever contacts the first stopper in the open state of the switch, and the roller is located at the left end portion of the elongated hole. In the closed state of the switch, the connecting lever contacts the second stopper, the roller is located at the right end of the elongated hole, and the spindle lever and the connecting lever are orthogonal to each other. Switch operating device.