JPH09134649A - Opening-closing operation device of switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening-closing operation device which is easily installed and is excellent in the working efficiency. SOLUTION: In this device, installing surfaces are formed in front and in rear of a case 1, and both ends of an input shaft 3 and an output shaft 2 are respectively arranged on both installing surfaces, and the output shaft 2 is constituted so as to be rotated after rotation of the input shaft 3 is stored in a spring depressing means composed of a spring 14 as spring force. In this case, a releasing shaft 21 where handles 28 and 29 are respectively connected to front-rear surfaces is journalled in the longitudinal direction in the case 1, and a relasing mechanism is arranged to separate a pin 13 being an actuating end part of a rod 12 to hold a spring 14 from a lever 4 integrally formed with the output shaft 2 at that time by interlocking with rotation of the releasing shaft 21, and when this device is installed in a switch, the releasing shaft 21 is rotated, and rotation of the output shaft 2 is freed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device which is detachably attached to a switch such as a mold disc which is manually opened / closed.

[0002]

2. Description of the Related Art Conventionally, a manual type switch used for a distribution line may be opened / closed by mounting an opening / closing device only when an opening / closing operation is required. As an opening / closing operation device used for that purpose, there is an "operation tool for a switch" which the applicant of the present application has already filed as Japanese Patent Application No. 7-119206. This has a symmetrical structure in which the mounting surfaces are formed in the front and rear of the main body, and both ends of the input shaft and the output shaft are arranged on both mounting surfaces, so that if the contacts on one mounting surface are in the open position, the other The contacts on the mounting surface are always in the closed position. Therefore, even if the contact of the switch is open or closed, it can be connected to either one of the mounting surfaces, so that the mounting surface according to the position of the contact can be connected to perform the opening / closing operation. .

[0003]

However, in this case, the rotational position of the output shaft is kept open or closed by the spring force, and the contact drive shaft of the switch is opened or closed. Because they are held, neither can rotate freely. Therefore, when connecting both shafts to each other, unless the rotational position angles of both shafts match with high accuracy, it is not possible to connect as it is,
Adjustment work such as forcibly matching the output shaft side with the contact drive shaft is required, resulting in a significant decrease in work efficiency.
The present invention has been made to solve the above problems, and an object of the present invention is to provide an opening / closing operation device for a switch which is easy to install and has excellent work efficiency.

[0004]

In order to achieve the above object, the invention of claim 1 has a case main body in which switch mounting surfaces identical to each other are formed on a front surface and a rear surface, and a front and rear direction in the case main body. An input shaft that is rotatably supported and has front and rear surfaces connected to it, and an output shaft that is rotatably supported in the front and rear direction within the case body within a certain angle range and has front and rear surfaces connected respectively. Connected between the input shaft and the spring pressing means, and a spring pressing means in the case main body for pressing and holding the output shaft selectively and contactably and separably with respect to the both rotational ends thereof. The spring pressing means is deformed / accumulated in the first half stroke while separating the spring pressing means from the holding position of the output shaft at that time by releasing the spring force stored in the spring pressing means in the latter half stroke. Forcibly rotate the output shaft to the other holding position. An intermediate in the opening and closing device of the switch with a drive mechanism, releasing shaft each connecting portion to the front and rear surface is supported by a front-rear direction of the case body is formed that,
And a release mechanism that is connected between the release shaft and the spring pressing means and that separates the spring pressing means from the holding position of the output shaft at that time in association with the rotation of the release shaft.
As a result, when the switchgear is attached to the switch,
When the release shaft is rotated and the release mechanism is operated, the rotational position of the output shaft becomes free and adjustment is possible.

According to a second aspect of the present invention, in the switch operating device of the first aspect, a non-circular through hole is formed in the axial direction of the output shaft, and a non-circular fitting is provided at the front end of the contact drive shaft of the switch. It is characterized in that a joint portion is formed and a non-circular connecting shaft continuous with the hole and the fitting portion is inserted to connect the output shaft and the contact drive shaft of the switch. As a result, the work of connecting both shafts can be performed from outside the opening / closing device.

[0006]

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 contact holding position of an opening / closing operation device according to an embodiment of the present invention, (a)
Shows a front view, (b) a right view, and (c) a rear view. Further, FIG. 2 shows a state after operating from the state of FIG. 1 and switching to the other contact holding position. Further, FIGS. 3 and 4 show a state in which the spring pressing means, which is a feature of the present invention, is released from the states of FIGS. 1 and 2 to free the output shaft. In FIG. 1 (a), reference numeral 1 denotes a box-shaped case of the apparatus main body, which penetrates the front surface and the rear surface to pivotally support the output shaft 2 at the center position in the left-right direction of the lower part and to input the output shaft 2 to the upper right position. Shaft 3 is supported.
Further, the release shaft 21 is pivotally supported on the upper left side, the intermediate shaft 22 is provided on the lower right side thereof, and the fixed shaft 2 is further provided on both sides of the lower part.
The shafts 3 and 24 are respectively supported.

As shown in FIG. 1 (b), cylindrical fitting cylinder portions 25 and 26 are formed on the outer circumferences of both ends of the output shaft 2 projecting from the case 1. Facilitates alignment during connection with (not shown).
Further, the output shaft 2 is formed with a through hole having a quadrangular cross section, and in use, a connecting shaft 27 having a quadrangular cross section is fitted into the output shaft 2 so that the connecting shaft 27 can be inserted and removed freely. Connect the contact drive shaft. That is, both ends of the output shaft 2 serve as connecting portions of the output shaft 2. Similarly, the input shaft 3 also protrudes from the case 1, and an operating handle (not shown) is attached to one end thereof when in use. Both ends of the input shaft 3 serve as connection parts of the input shaft 3. Handles 28 and 29 are also attached to both ends of the release shaft 21.

Further, at both ends of the fixed shafts 23 and 24,
The pins 31 to 34 are fitted in the radial direction. Further, a lever 4 is integrally fixed in a vertical plane at a substantially central position of the output shaft 2 in the case 1. Recesses 4a and 4b are formed above and below the lever 4, respectively. A hollow outer shaft 5 is fitted on the outer side of the output shaft 2. Outer shaft 5
A yoke 6 is formed on the outer periphery of the lever 4 side. Further, a fan-shaped lever 7 is integrally fixed in the radial direction on the outer peripheral portion on the front surface side of the outer shaft 5. An elongated hole 8 is concentrically formed on the outer peripheral portion of the lever 7.

A bracket 9 having a notch in the front-rear direction is formed in the lower portion of the inner ceiling surface of the case 1 and directly above the output shaft 2. Bracket 9
A pin 11 with a slide hole having a diametrical slide hole formed in the middle is engaged with the notch. Pin 1
A rod 12 is slidably fitted in the slide hole 1 and a lower end of the rod 12 is rotatably connected to a yoke 6 of an outer shaft 5 via a pin 13. A compression coil spring 14 is fitted on the outer side of the rod 12, and the upper end of the compression coil spring 14 is attached to the pin 11
The lower end abuts on and is supported by the flange below the rod 12.

One end of the pin 13 supported by the yoke 6 projects into the recess 4a of the lever 4,
The outer peripheral surface of is contacted with the outer end surface of the recess 4a. A lever 15 is integrally fixed to the front side of the input shaft 3 in the case 1, and a link 17 is connected to the tip of the lever 15 via a pin 16. The other end of the link 17 is engaged with the elongated hole 8 of the lever 7 via a pin 18.
Further, a lever 35 is integrally fixed to the front side of the release shaft 21 in the case 1, and the tip of the lever 35 is connected via a link 36 to a lever 37 integrated with the intermediate shaft 22. A lever 38 is fixed to the rear side of the intermediate shaft 22, and the tip of the lever 38 is connected to a lever 41 via a link 39.

A pin 42 is fixed in the middle of the lever 38, and the pin 42 is engaged with a long hole 44 formed at the upper end of the link 43. The lower end of the link 43 is connected to the pin 13. Further, the lower end of the lever 41 is fixed to the fixed shaft 23, the link 45 is connected to a position near the lower end of the lever 41, and the other end is connected to the upper end of the lever 46. In addition, the stopper 47 projecting inside the front of the case 1 near the lower end of the case 1 is
It is located in the concave portion 4b, and limits the turning range of the lever 4, that is, the output shaft 2. Similarly, the stopper 48 protruding from the inside of the middle stage of the front surface of the case 1 comes into contact with the link 17 to limit the turning range of the lever 15. Similarly, case 1
The stopper 49 provided on the inner side of the upper step of the front face contacts the lever 35 and limits the turning range of the handles 28, 29.

Next, the method of use and operation will be described.
In the state of FIG. 1 (a), the lever 4 integrated with the output shaft 2 is in a leftwardly downward posture, and the output shaft 2 is rotated counterclockwise and held at its end position. In this state, either the front surface or the rear surface becomes the mounting surface according to the contact position of the switch to be mounted. Here, assuming that the rear surface is the mounting surface, an operation handle (not shown) is mounted on the front end of the input shaft 3. Next, in the state of FIG. 1A, the handle 28 on the front side is rotated counterclockwise by the operator's hand. Then, as shown in FIG. 3, the rotation of the release shaft 21 and the lever 35 is changed by the lever 37 via the link 36.
And the intermediate shaft 22 is rotated clockwise.

Further, when the link 39 connected to the lever 38 integral with the intermediate shaft 22 is pulled up, the lever 41 at the lower end thereof is rotated counterclockwise (clockwise in FIG. C). The rotation of the lever 41 is also transmitted to the lever 46 via the link 45 to rotate the lever 46 counterclockwise (clockwise in FIG. C). As a result, the fixed shafts 23 and 24 to which the levers 41 and 46 are fixed are rotated in the counterclockwise direction (clockwise in FIG. C), and the pins 32 and 34 at the rear ends thereof have an angle in the horizontal direction. In addition, the pin 42 in the middle of the lever 38 rises, so that the pin 4
The link 43, which is engaged with the shaft 2 through the long hole 44, moves up, and the pin 13 connecting the lower end of the link 43 and the yoke 6 is pulled up.

That is, the rod 12 rises while compressing the spring 14 and contacts the concave portion 4a of the lever 4 until then to hold the lever 4 in the counterclockwise end position.
3 is separated from the recess 4a. As a result, the lever 4 can be rotated by the amount of the distance, and the output shaft 2 becomes free within the fixed angle range. While maintaining this state, the main body of the switching operation device is moved to the front surface of the switch (not shown) to be operated, and the pins 32 and 34 of the fixed shafts 23 and 24 are also operated to the switch to be operated. The engaging cylinder portion 26 around the mating contact drive shaft while the rear end of the output shaft 2 is aligned with the contact drive shaft of the switch while being inserted into an engaging recess (not shown) provided on the lower part of the front surface of the switch. The fitting boss (not shown) is fitted.

Next, the connecting shaft 27 having a quadrangular cross section is inserted from the front side of the output shaft 2 and fitted into the connecting portion at the tip of the other contact drive shaft. Although not shown, the shape of the connecting portion may be a square hole having the same shape as the connecting shaft 27 or a groove. Here, even if the angular position between the output shaft 2 and the connecting portion of the mating shaft is slightly deviated, the output shaft 2 in the free state is inserted while being twisted left and right, so that the angles of both shafts can be easily matched and connected. The shaft 27 can be fitted to the mating connection part. If necessary, the connecting shaft 27 is prevented from coming off. Then, the handle 28 is returned to its original position. Thereby, each part returns to the state of FIG. 1, and the spring 14 again pushes the rod 12 downward,
The pin 13 is brought into contact with the concave portion 4a and the rotational position of the output shaft 2 is held at the original position. Further, the pins 32, 34 of the fixed shafts 23, 24 also return to their original angles, so that they are locked in the mating engagement recesses to securely fix the main body to the switch.

Next, the contact switching operation, which is the original purpose, will be described. When the operator turns the input shaft 3 clockwise from the state shown in FIG. 1A by the operation handle, the link 17 connected to the lever 15 moves upward.
Then, the pin 18 at the lower end of the link 17 comes into contact with the left end of the elongated hole 8 of the lever 7 to fix the lever 7 fixed to the outer shaft 5.
Rotates clockwise. When the lever 7 rotates, the yoke 6 formed on the outer shaft 5 also rotates and pushes the rod 12 connected via the pin 13 upward. Thereby, the spring 1 fitted to the rod 12
4 is compressed. That is, until the spring 14 starts to be compressed as the input shaft 3 rotates and the output shaft 2, the pin 13, the rod 12, and the pin 11 reach a straight line,
The spring 14 is compressed and the spring force is stored.

Here, when the input shaft 3 further rotates and exceeds the speculation point, the spring force stored in the spring 14 up to that point is released, the rod 12 starts moving downward right, and the yoke 6 rotates. To accelerate. As a result, the outer shaft 5 starts to rotate in a clockwise direction all at once, and the pin 13 of the yoke 6 moves while drawing a circular locus about the output shaft 2 to come into contact with the other concave portion 4a of the lever 4, and , The lever 4 is pushed and moved to rotate the output shaft 2 clockwise. As a result of the rotation, the state shown in FIG. 2 is reached, and the contact drive shaft (not shown) of the switch to which the output shaft 2 is connected is swung counterclockwise all at once to switch the contacts. By this switching operation, the outer shaft 5,
The yoke 6 and the lever 7 make about half a turn.

In the above-described operation, when the outer shaft 5 rotates in advance after the pin 13 or the like exceeds the speculation point, the lever 7 rotates in advance, but the pin at the lower end of the link 17 1
Since 8 is engaged with the elongated hole 8 of the lever 7, the engagement between the pin 18 and the lever 7 is free, and the spring force is not transmitted to the input shaft 3. Further, when the pin 13 passes the imaginary point, the link 43 also rises, but since the upper end of the link 43 is engaged with the pin 42 by the long hole 44, the raising operation of the link 43 is performed by the lever via the pin 42. Nothing is told to 38.

Next, the case where the contact position is switched from the state of FIG. 2 to the state of FIG. 1 will be described. When the operator turns the input shaft 3 counterclockwise by the operation handle, the link 17 connected to the lever 15 moves downward.
Then, the pin 18 at the lower end of the link 17 comes into contact with the left end of the elongated hole 8 of the lever 7 to fix the lever 7 fixed to the outer shaft 5.
Rotates counterclockwise. When the lever 7 rotates, the yoke 6 formed on the outer shaft 5 also rotates, and the rod 12 connected via the pin 13 is pressed downward. As a result, the spring 14 fitted to the rod 12
Is compressed and the spring force is stored.

Here, when the input shaft 3 further rotates and exceeds the speculation point, the spring force accumulated in the spring 14 is released, the rod 12 starts moving downward leftward, and the yoke 6 rotates. To accelerate. As a result, the outer shaft 5 starts to rotate counterclockwise all at once, and the pin 13 of the yoke 6 moves while drawing a circular locus around the output shaft 2 and comes into contact with the other recess 4a of the lever 4, Further, the lever 4 is pushed and moved to rotate the output shaft 2 counterclockwise. The result of the rotation returns to the state of FIG. 1, and the contact drive shaft (not shown) of the switch to which the output shaft 2 is connected is swung in the clockwise direction all at once to switch the contact to the original state.

FIG. 4 shows a state in which the release mechanism is operated when the switch 43 is attached to the switch in the contact state shown in FIG. 2. Compared to the state shown in FIG. The operation of the releasing mechanism is exactly the same as that of FIG. 3 except that the lower end is at the opposite position, and thus the description of the operation is omitted. In the above-described embodiment, the handle 28,
29 is fixed to the release shaft 21 in advance, but like the handle of the input shaft 3, the handles 28 and 29 are also detachable,
It is also possible to attach it only to the necessary work surface side each time.

5 and 6 are explanatory views showing the connection between the output shaft and the contact drive shaft of the switch according to another embodiment. FIG.
Shows the state before the connection between the device main body 59 and the switch 57, and the output is obtained by inserting the fitting cylinder part 52 disposed on the outer periphery of the right end of the output shaft 51 into the fitting boss part 53 on the switch 57 side. The shaft 51 and the contact drive shaft 54 of the switch 57 can be aligned. When the alignment is achieved, the connecting shaft 5 is inserted from the left end into the through hole 55 formed in the output shaft 51 and having a rectangular cross section.
Insert 6. Here, since the output shaft 51 is capable of rotating within a certain range by operating the release mechanism in advance, the connecting shaft 56 is inserted while twisting left and right with the output shaft 51. Then, even if the rotational position angle of the output shaft 51 and the contact drive shaft 54 of the switch 57 is slightly deviated, the connecting shaft 5
6 can be reliably inserted into the groove 58 at the tip of the contact drive shaft 54 and connected. FIG. 6 shows the state after connection.

In this way, the opening / closing operation device of the embodiment can be mounted on the switch after freeing the output shaft at the time of mounting, so that the contact drive shaft of the switch and the output shaft are aligned with each other. This simplifies the operation and eliminates the need for conventional rotary position adjustment at the time of connection, thus improving the work efficiency of opening and closing operations on site. In addition, in the embodiment, the cross-sectional shape of the connecting shaft is a quadrangle, but it is also possible to use another polygon or a spline shaft or the like.

[0024]

As described above, according to the first aspect of the present invention, the mounting surfaces are formed in the front and rear of the case body, and both ends of the input shaft and the output shaft are disposed on both mounting surfaces, respectively, and In an opening / closing device for rotating the output shaft after accumulating the rotation of the shaft as a spring force in the spring pressing means, a release shaft having connection portions formed on the front and rear surfaces is axially supported in the front-rear direction in the case body, An opening / closing device is attached to the switch by installing a release mechanism that separates the spring pressing means from the holding position of the output shaft at that time in association with the rotation of the releasing shaft between the release shaft and the spring pressing means. At this time, if the release shaft is rotated to operate the release mechanism, the rotational position of the output shaft becomes free, and the rotational position of the output shaft can be easily matched with the contact drive shaft of the switch. As a result, the mounting work is facilitated and the work efficiency is improved.

According to another aspect of the present invention, there is provided a switch operating device for a switch, wherein a non-circular through hole is formed in the axial direction of the output shaft and a non-circular fitting portion is provided at the front end of the contact drive shaft of the switch. Since the non-circular connecting shaft that connects these holes and the fitting portion is inserted to connect the output shaft and the contact drive shaft of the switch, the connecting work of both shafts can be performed from the outside of the switch operating device. It becomes possible to carry out, and connection work becomes easy.
As a result, the work efficiency can be further improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one holding position of an opening / closing operation device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the other holding position of the opening / closing operation device according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a state in which a release mechanism is operated in the state of FIG.

FIG. 4 is a cross-sectional view showing a state in which a release mechanism is operated in the state of FIG.

FIG. 5 is a cross-sectional view showing a connection between an output shaft and a contact drive shaft of a switch according to another embodiment.

6 is a cross-sectional view showing a state after connection in FIG.

[Explanation of symbols]

 1 Case 2 Output Shaft 3 Input Shaft 4 Lever 4a, 4b Recess 5 Outer Shaft 6 Yoke 7 Lever 8 Long Hole 9 Bracket 11 Slide Hole Pin 12 Rod 13 Pin 14 Compression Coil Spring 15 Lever 16 Pin 17 Link 18 Pin 21 Release Shaft 22 Intermediate shaft 23, 24 Fixed shaft 25, 26 Fitting cylinder part 27 Connecting shaft 28, 29 Handle 31-34 pin 35 Lever 36 Link 37, 38 Lever 39 Link 41 Lever 42 pin 43 Link 44 Long hole 45 Link 46 Lever 47 ˜49 Stopper 51 Output shaft 52 Fitting cylinder part 53 Fitting boss part 54 Contact drive shaft 55 Through hole 56 Connection shaft 57 Switch 58 Groove 59 Device body

Claims (2)

[Claims] 1. A case main body in which switch mounting surfaces identical to each other are formed on a front surface and a rear surface, an input shaft axially supported in the front and rear direction in the case main body, and connection portions formed on front and rear surfaces, respectively. An output shaft that is freely pivoted in the front-back direction within the main body within a certain angle range and has connection parts formed on the front and rear surfaces, respectively. Alternatively, the spring pressing means for pressing and holding the contacting / separating portion is connected between the input shaft and the spring pressing means, and the spring pressing means is held at the current position of the output shaft in conjunction with the rotation of the input shaft. An intermediate drive mechanism that deforms and accumulates the spring pressing means in the first half stroke while separating from the above, and releases the spring force stored in the spring pressing means in the latter half stroke to forcibly rotate the output shaft to the other holding position. In the switch operation device of the provided switch It is connected between the release shaft and the spring pressing means, which is axially supported in the front-rear direction in the case body and has connection portions formed on the front and rear surfaces, respectively, and the spring pressing means is interlocked with the rotation of the release shaft. An opening / closing operation device for a switch, comprising: a release mechanism for separating the output shaft from the holding position of the output shaft at that time. 2. The switch operating device according to claim 1, wherein a non-circular through hole is formed in the axial direction of the output shaft,
A non-circular fitting part is formed at the front end of the contact drive shaft of the switch, and the output shaft and the contact drive shaft of the switch are connected by inserting a non-circular connecting shaft continuous with these holes and the fitting part. A switch operation device for the switch.