JPH10172398A - Operating device of switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the degree of freedom on intallation, to easily perform the fine adjustment of the torque of a torsion bar, and to improve the assembly operability, by installing a torsion bar unit part independently from a box body of a control part, and transmitting the accumulated energy of the same to the control part by a link mechanism. SOLUTION: A lever having the torque in a clockwise direction, is fixed at the input and output side of a torsion bar 7, in a torsion bar unit part 101 for open circuit having torsion bars 4-7. The lever is connected with a lever 3 of a control part 100 through a link mechanism of which the length is preferably adjustable. In the link mechanism, a rod 57 and a rod end 56 at one side edge of the rod 57 is connected by a right handed screw, and the rod 57 and the rod end 56 at the other side edge of the rod 57 are connected by a left handed screw. Thereby the rod 57 is expanded and shrinked corresponding to the rotating direction of the rod 57, and the accumulated energy is inceased and decreased, for finely adjusting the torque. A torsion bar unit part 102 for close circuit has the same structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the operation of a switch,
The present invention relates to an operation device for a switch operated by using stored energy of a torsion bar.

[0002]

2. Description of the Related Art FIG.
2 is a front view of a conventional switch operating device using a torsion bar, FIG. 16 is a perspective view thereof, and FIG.
FIG. 7 is a sectional view showing a main part. FIG. 15 shows a state where the fixed contact 1 and the movable contact 2 are in contact with each other and the switch is closed. The lever 3 is given a counterclockwise rotational force in FIG. 15 by the torsion bars 4, 5, 6, 7, and releases the rotational force via the release latch 11 and holds the lever 3 with the trigger 8. When the trip electromagnet 9 is excited in a state where the lever 3 is held by the trip trigger 8, the plunger 10 operates rightward in FIG. 15 and the trip trigger 8 rotates clockwise. As a result, the release latch 11 is disengaged from the pin 12 of the lever 3, and the lever 3 rotates counterclockwise. As a result, the movable contact is driven by the rotational force of the lever 3 via the link mechanism 13 in the blocking direction, that is, leftward in FIG. 15, and the switch is opened. FIG. 18 shows an open circuit state in which the operation is completed.

[0003] Next, from the open state of FIG.
A closing operation for closing the circuit between the two will be described. Cam 14
Is connected to a lever 18 via a cam shaft 15, a large gear 16 and a link 17, and torsion bars 19, 20, 2
In FIGS. 18A and 18B, a clockwise rotational force is given by the first and second motors 22. The rotational force of the cam 14 is held by locking the pin 25 with the closing latch 23 and the closing trigger 24.

In this state, when the closing electromagnet 26 is excited,
The plunger 27 moves rightward in FIG. 18, and the closing latch 23 rotates counterclockwise by a reaction force from a pin 25 provided on the cam 14. On the other hand, the closing latch 23 is disengaged from the pin 25 and the cam 14 is disengaged from the torsion bars 19, 20,.
The torsion bars 4, 5, 6, 7 fixed to the lever 3 are driven while being twisted clockwise in order to rotate clockwise by the discharge of 21 and 22 and push up the roller 28 provided on the lever 3. As a result, as shown in FIG. 19, the circuit is closed, the pin 12 is held by the release latch 11, and the closing operation is completed. The torsion bars 4, 5, 6,
7, torsion bars 19, 20, 21, 2
Since 2 is released, the stored energy of the torsion bars 19, 20, 21, 22 is made larger than that of the torsion bars 4, 5, 6, 7.

In the closed state shown in FIG.
9, 20, 21, and 22 are in the fired state. In this state, by rotating the small gear 29 counterclockwise by a motor (not shown), the large gear 16 rotates clockwise,
Torsion bar 1 via link 17 and lever 18
9, 20, 21, and 22 are charged. As a result, both the contacts 1 and 2 are closed and the torsion bar 1
FIG. 1 with stored energy at 9, 20, 21, and 22
The state becomes 5.

The connection state of the torsion bars 4, 5, 6, 7 will be described with reference to FIG. Reference numeral 51 denotes a cylindrical body rotatably attached to the housing 52. One end of the torsion bar 7 is fixed, and the lever 3 is fixed. When the lever 3 rotates clockwise in FIG. 8, the torsion bar 7 receives the torque through the cylinder 51 and is twisted. At the other end of the torsion bar 7, both ends of the torsion bars 6, 5 and one end of the torsion bar 4, levers 35, 33,
38, 36, 32, 30 are rotatably housed in a bearing 53 via a cylindrical body 49 by a rolling element 48. The other end of the torsion bar 4 is fixed to the housing 52. The torque received by the torsion bar 7 is transmitted through a link 34 connecting the levers 35 and 33, a link 37 connecting the levers 38 and 36, and a link 31 connecting the levers 32 and 30 to each other. 4 is transmitted. Therefore, the four torsion bars 4, 5, 6, 7 are combined in series and have the same effect as one long torsion bar.

[0007] With the above configuration, the mutual position and angular relationship between the torsion bars 4, 5, 6, and 7 and the housing are determined, and the arrangement cannot be freely changed. The same applies to the torsion bars 19, 20, 21, and 22, which act as one long torsion bar having one end to which the lever 18 is fixed. Similarly, the mutual arrangement relationship with the housing is determined. The torsion bars 4, 5, 6, 7, 19, 20, 21, 22 are covered with a spring cover 54.

[0008]

Since the conventional switch operating device is configured as described above, the mutual position and angle relationship between the torsion bar and the housing are uniquely determined, and the operating device is operated. There is a problem in that the degree of freedom in arranging the operation device is small, and it is difficult to reduce the size of the box for storing the operation device. In addition, there is a problem in that the torque of the torsion bar cannot be finely adjusted, and the assembling takes time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has a greater degree of freedom in arranging the operating device, and can easily finely adjust the torque of the torsion bar. It is an object of the present invention to obtain a switch operating device with good assembling workability when connecting a unit unit and a control unit that holds stored energy.

[0010]

According to the switch operating device of the present invention, the torsion bar unit is disposed independently of the housing, and a link mechanism for transmitting the stored energy of the torsion bar to the control unit is provided. It is a thing. Further, the link mechanism has an adjustable length. Also, a lever fixed to the torsion bar and a fixed seat fixed to the base of the torsion bar unit are provided, and the lever and the fixed seat can be connected via a lever fixing member.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a front view of a switch operating device according to Embodiment 1 of the present invention, and FIG. 2 is a side view. FIG. 3-
FIG. 6 is a view showing the torsion bar unit 101 for opening of the switch operating device shown in FIGS. 1 and 2, FIG. 3 is a plan view, FIG. 4 is a front view, FIG. 5 is a side view, and FIG. Is the VI in Figure 2.
FIG. 6 is a cross-sectional view along the line VI. The above figure shows a state where the switch is closed. In these figures, 1 and 2 are fixed contacts and movable contacts of the switch, 3 is a lever connected to the movable contact 2 via a link mechanism 13, and 28 is a lever 3
1, a release torsion bar unit for applying a rotational force to the lever 3 in the counterclockwise direction in FIG. 1; a release latch 11 which engages with the pin 12 of the lever 3; , A tripping trigger for holding the rotational force of the lever 3 via the lever, 9 a tripping electromagnet,
Reference numeral 10 denotes a plunger operated by a trip electromagnet.

Reference numeral 16 denotes a large gear, reference numeral 14 denotes a cam connected to the large gear 16 via a cam shaft 15, reference numeral 102 denotes a closing torsion bar unit, and cam 14 includes a closing torsion bar via a link 17 and a lever 18. Unit part 10
2 gives a clockwise rotational force in FIG. Reference numeral 23 denotes a closing latch which engages with the pin 25 of the cam 14, reference numeral 24 denotes a closing trigger for holding the rotational force of the cam 14 via the closing latch 23, reference numeral 26 denotes a closing electromagnet, reference numeral 27 denotes a plunger operated by the closing electromagnet, and reference numeral 29 denotes a large. This is a small gear that drives the gear 16. By the above 3 to 29, the control unit 10
0, and holds the energy stored in the open-circuit and closed-circuit torsion bar unit sections 101 and 102, and controls the release and storage of the energy. Reference numeral 52 denotes a housing for housing or attaching each member of the control unit 100.

The open-circuit torsion bar unit 101 will be described with reference to FIGS. 4, 5,
Reference numerals 6 and 7 denote torsion bars for storing energy. One end of the torsion bar 4 is fixed to a fixed base 59, and the other end is fixed to a cylindrical body 49. 48 and is rotatably held. Cylinder 4
A lever 30 is fixed to 9. Torsion bar 5,
6 and one end of the torsion bar 7 are also provided with similar levers 32, 36, 38, 33, 35, respectively, with the levers 30, 32 by the link 31, the levers 36, 38 by the link 37, and the levers 33, 35. Are linked by a link 34. A lever 55 is fixed to the input / output side at the other end of the torsion bar 7. In this state, the lever 55
In FIG. 5, a torque rotating clockwise is given.

Reference numerals 56 and 57 denote rod ends and rods which constitute a link mechanism for transmitting the stored energy of the torsion bar to the control unit, and connect the lever 55 to the lever 3 shown in FIGS. . The rod 57 and the rod ends 56 at both ends are screwed together, and one end is right-handed,
The other end is formed with a left-hand thread. With the lever 57 connected to the lever 3 and the lever 55, when the rod 57 is rotated in one direction, the rod 57 is extended, the lever 55 is rotated counterclockwise to increase the stored energy, and when the rod is turned in the opposite direction, the rod 57 is contracted. ,
Fine adjustment of the stored energy of the torsion bar, that is, fine adjustment of the torque, can be performed such that the stored energy is reduced by rotating the lever 55 clockwise. The open circuit torsion bar unit 101 is connected to the housing 5.
2 are not directly attached but arranged independently, and the transmission of the stored energy is performed through the rod end 56 and the rod 57.

The opening torsion bar unit 1
However, the lever 58 at the input / output end of the open-circuit torsion bar unit 102 is connected to the rod end 60 and the rod 61 as shown in FIG. It is connected to the lever 18. However, the stored energy of the torsion bar unit 102 for closing is larger than that of the torsion bar unit 102 for opening.

Next, the operation will be described. First, Figure 1
The operation of opening the switch from the closed state of the switch shown in FIG. 6 will be described. In FIG. 1, when the trip electromagnet 9 is excited, the plunger 10 moves rightward, and the trip trigger 8 rotates clockwise. Then, the release latch 11 is disengaged from the pin 12, the stored energy is transmitted from the opening torsion bar unit 101 via the rod end 56 and the rod 57, and the lever 3 rotates counterclockwise. As a result, the movable contact 2 is driven in the blocking direction, that is, in the left direction by the rotational force of the lever 3 via the link mechanism 13 to open the switch.

The open state is shown in FIGS. FIG.
FIG. 8 is a front view of the operation device of the opener in the open state, and FIG. 8 is a side view. FIGS. 9 to 12 show a torsion bar unit 101 for opening of the switch operating device shown in FIGS.
FIG. 9 is a plan view, FIG. 10 is a front view, and FIG.
1 is a side view, and FIG. 12 is a sectional view taken along line XII-XII in FIG. The lever 55 in FIG. 12 is moving more clockwise than in FIG. Other levers 35, 3
3, 38, 36, 32 are also moving clockwise little by little.

Next, the operation of closing the circuit from the open state will be described. In FIG. 7, when the closing electromagnet 26 is excited, the plunger 27 moves rightward,
Rotates clockwise, and the closing latch 23 rotates counterclockwise due to the reaction force from the pin 25. When the closing latch 23 is disengaged from the pin 25, the closing torsion bar unit 1 is closed.
02 is transmitted from the rod end 60 and the rod 61 via the rod end 60 and the rod 61, and the cam 14 rotates clockwise, pushing up the roller 28 and rotating the lever 3 clockwise. Then, the rod 57 is pushed down to store energy in the torsion bar unit 101 for opening. In this way, the closing torsion bar unit 102 emits power while accumulating the opening torsion bar unit 101, so that the stored energy of the closing torsion bar unit 102 is larger than that of the opening torsion bar unit 101. doing.

The open-circuit torsion bar unit 101 is charged and returns to the state shown in FIGS. The closing torsion bar unit 102 is released, and the cam 14 is in a state as shown in FIG. 19 of the conventional example. Then, by rotating the small gear 29 counterclockwise by a motor (not shown), the large gear rotates clockwise, and the link 1
7. The closing torsion bar unit 102 is charged through the lever 18, the rod end 60, and the rod 61. As a result, the cam 14 and the closing torsion bar unit 102 return to the states shown in FIGS.

Embodiment 2 FIG. 13 is a front view of an open-circuit torsion bar unit of a switch operating device according to Embodiment 2 of the present invention, and FIG. 14 is a sectional view taken along the line XIV-XIV of FIG.
It is sectional drawing along the line. In these figures, reference numeral 62 denotes a fixed seat provided on the base 63 of the torsion bar unit 101 for opening, and 64 denotes a rectangular lever fixing member. Both ends of the lever fixing member 64, the fixed seat 62 and the lever 55 are provided. Is drilled with holes (not shown) and bolts 65
As a result, the lever 55 and the fixed seat 62 are
Are connected via The closing torsion bar unit 102 is also configured in the same manner as described above. Other parts are the same as those of the first embodiment, but FIG.
3 and FIG. 14 show a state where the torsion bar unit 101 for opening and the control unit 100 are not connected. With the above configuration, the energy stored at the release position of the torsion bar unit for opening and closing 101, 102 is held by the lever fixing member 64, and the control unit 100 is held in that state.
And a torsion bar unit 1
01 and 102 are fixed to a storage box (not shown), and these are connected via rods 57 and 61 and rod ends 56 and 60.

[0021]

According to the switch operating device of the present invention, the torsion bar unit is disposed independently of the housing, and the stored energy of the torsion bar is transmitted to the control unit by the link mechanism. The degree of freedom in arrangement increases. Further, by making the length of the link mechanism adjustable, fine adjustment of the torque of the torsion bar becomes easy. Also, by connecting the lever fixed to the torsion bar to the fixed seat with the lever fixing member,
Since the stored energy of the torsion bar is retained, the workability of assembling when connecting the torsion bar unit and the control unit is good.

[Brief description of the drawings]

FIG. 1 is a front view of a switch operating device according to Embodiment 1 of the present invention, showing a closed state.

FIG. 2 is a side view of the switch operating device shown in FIG. 1;

3 is a plan view of an open-circuit torsion bar unit of the switch operating device shown in FIG. 1. FIG.

FIG. 4 is a front view of the torsion bar unit for opening shown in FIG. 3;

FIG. 5 is a side view of the opening torsion bar unit shown in FIG. 3;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 3;

FIG. 7 is a front view of the switch operating device shown in FIG. 1 in an open state.

8 is a side view of the switch operating device shown in FIG. 7;

9 is a plan view of an open-circuit torsion bar unit of the switch operating device shown in FIG. 7;

FIG. 10 is a front view of the opening torsion bar unit shown in FIG. 9;

11 is a side view of the torsion bar unit for opening shown in FIG. 9;

FIG. 12 is a sectional view taken along the line XII-XII in FIG. 9;

FIG. 13 is a front view of an open-circuit torsion bar unit of a switch operating device according to Embodiment 2 of the present invention.

FIG. 14 is a sectional view taken along the line XIV-XIV in FIG.

FIG. 15 is a front view of a conventional switch operating device;
Indicates a closed state.

16 is a perspective view of the switch operating device shown in FIG.

17 is a sectional view of a main part of the switch operating device shown in FIG.

18 is a front view of the switch operating device shown in FIG. 15 in an open state.

FIG. 19 is a front view of the switch operating device shown in FIG. 15 immediately after closing.

[Explanation of symbols]

Reference Signs List 1 fixed contact, 2 movable contact, 4 to 7 torsion bar, 19 to 22 torsion bar, 52 housing, 5
6,60 rod end, 57,61 rod, 62
Fixing seat, 63 Base, 64 Lever fixing member, 65
Bolt, 100 control unit, 101 torsion bar unit for opening, 102 torsion bar unit for closing.

Claims (3)

[Claims] 1. A torsion bar unit for storing stored energy in a torsion bar for driving a movable contact that contacts and separates from a fixed contact, and releasing the stored energy while retaining the stored energy. A control unit for controlling energy storage;
In a switch operating device comprising a housing for accommodating or attaching the control unit, the torsion bar unit is disposed independently of the housing, and the stored energy of the torsion bar is transmitted to the control unit. An operating device for a switch, wherein a link mechanism is provided. 2. The switch operating device according to claim 1, wherein the link mechanism for transmitting the stored energy of the torsion bar to the control unit is adjustable in length. 3. A lever having one end fixed to a torsion bar and the other end rotatably connected to a link mechanism, and a fixed seat fixed to a base of the torsion bar unit, and a detachable lever fixed. An operating device for a switch, wherein the lever and the fixed seat can be connected via a member.