JPH1012102A - Operation mechanism of switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce bending stresses that are produced in a torsion bar, even if the number of sections of the torsion bar is increased. SOLUTION: A torsion bar 55 is secured at one end to a casing 29 and is supported at the other end by a cylinder 54 secured to the casing 29, in such a way that the torsion 55 is free to rotate via a pin 57. One end of a torsion bar 62 is freely rotatably supported by the cylinder 54 via a pin 63. Further, torsion bars 58, 59, connected together in such a way as to be operated in conjunction with each other by rotors 64 to 69 formed by gears, are placed between the torsion bars 55, 62.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch operating mechanism utilizing the force of a torsion bar.

[0002]

2. Description of the Related Art FIG.
No. 42, a front view of a switch operating mechanism using a torsion bar, FIG. 15 is a perspective view of FIG. 14, and FIG.
FIG. 15 is a sectional view showing a main part of FIG. 14. FIG. 14 shows a state where the fixed contact 1 and the movable contact 2 are closed. 14 to 16, the lever 3 is a torsion bar 4,
5, a rotational force in the counterclockwise direction (FIG. 14) is always applied, and the rotational force is tripped and held by the trigger 6. Therefore, when the tripping electromagnet 7 is excited while the lever 3 is held by the tripping trigger 6, the plunger 8 is operated rightward in FIG. 14 to rotate the tripping trigger 6 clockwise. As a result, the release latch 9 comes off the pin 10 and the lever 3 rotates counterclockwise. As a result, the movable contact 2 is driven in the blocking direction (left direction in FIG. 14) by the rotational force of the lever 3 via the link mechanism 11 to open the circuit. FIG. 17 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 interval will be described. 15 to 17, the cam 12 is connected to a lever 16 via a cam shaft 13, a large gear 14, and a link 15, and a torsion bar 17, 18 applies a clockwise (FIG. 17) rotational force. The rotational force of the cam 12 is held by locking the pin 21 with the closing latch 19 and the trigger 20. When the closing electromagnet 22 is excited in this state, the plunger 23 moves rightward in FIG.
9 rotates counterclockwise by a reaction force from a pin 21 provided on the cam 12. On the other hand, the closing latch 19 is disengaged from the pin 21 and the cam 12 is rotated clockwise by the release of the torsion bars 17 and 18 to push up the roller 24 provided on the lever 3.
5 is driven while twisting clockwise. As a result, FIG.
The closing operation is completed as shown in the closed state of FIG.
Is held by the release latch 9. Since the torsion bars 17 and 18 discharge power while storing the torsion bars 4 and 5, the stored energy of the torsion bars 17 and 18 is made larger than that of the torsion bars 4 and 5.

In the closed state shown in FIG.
7, 18 are in the fired state. In this state, by rotating the small gear 25 counterclockwise by a motor (not shown), the large gear 14 rotates clockwise, and the link 15
And torsion bars 17, 18 via lever 16. As a result, the state between the two contacts 1 and 2 is in a closed state and the torsion bars 17 and 18 are in the closed state in FIG.

In FIGS. 16 and 17, when the lever 3 is rotated clockwise as shown in FIG. 17, the lever 26 fixed to the torsion bar 5 rotates about the pin 27, and the torsion bar 5 is twisted and bent. It will be in the state that was done. Therefore, a bending stress is applied to the torsion bar 5 together with the torsion stress.
When is long enough, the bending stress is relatively small. When the lever 26 rotates about the pin 27, the torsion bar 4 is twisted and bent about the pin 27 similarly to the torsion bar 5. Therefore, both torsion bars 4, 5 act as one long torsion bar in series. Similarly, the torsion bars 17 and 18 function as one long torsion bar.

FIG. 19 schematically shows the operation of the torsion bars 4 and 5. In FIG. 19A, the torsion bar 4
The operation of the torsion bars 4, 5 and the lever 26 when the restraint of the lever 26 connecting the torsion bars 4, 5 is removed (the pin 27 is removed) is shown with one end of the torsion bar as a free end. When the torque T acts on the torsion bar 5 as indicated by an arrow 28, the torsion bar 5 rotates by an angle θ according to the magnitude of the torque T, and the lever 26 also rotates around the torsion bar 5. As a result, the torsion bar 4 moves by Δx corresponding to the angle θ. Assuming that the distance between the two torsion bars 4 and 5 is d, Δx = dθ.

FIG. 19B is a schematic view showing a case where a lever 26 connecting both torsion bars 4 and 5 is rotatably supported by a pin 27 as shown in FIG. By restricting the torsion bar 4, it is necessary to suppress the displacement amount Δx = dθ of the torsion bar 4 described above. Therefore, the torsion bars 4 and 5 generate a bending force corresponding to the displacement Δx.
Therefore, the torsion bars 4 and 5 are twisted and bent by Δx.

[0008]

Since the conventional switch operating mechanism is constructed as described above, if the length is shortened by dividing the torsion bar, the bending stress generated in the torsion bar increases. There is a problem that it is difficult to reduce the size.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a switch operating mechanism capable of suppressing bending stress generated in a torsion bar.

[0010]

According to a first aspect of the present invention, there is provided a switch operating mechanism for transmitting, via a link mechanism, the energy stored in a first torsion bar and a second torsion bar.
In the switch operating mechanism configured to open or close the switch with the accumulating force, one end of the first torsion bar is fixed to a fixed portion, and the other end is rotatable by the fixed portion. A first rotating body is fixedly supported on the other end, and the second torsion bar arranged in parallel with and opposed to the first torsion bar is provided at one end of the second torsion bar in conjunction with the first rotating body.
And the second torsion bar is rotatably supported by the fixed portion, and the other end is rotatably supported by the fixed portion and connected to the link mechanism. is there.

According to a second aspect of the present invention, there is provided a switch operating mechanism, wherein the first rotating body is a first gear and the second rotating body is a second gear meshing with the first gear. is there.

According to a third aspect of the present invention, in the switch operating mechanism, the third torsion bar is connected to the first torsion bar and the second torsion bar such that one end is located at one end of the first torsion bar. A third rotating body fixedly attached to one end of the third torsion bar, one end of the third torsion bar being rotatably supported by a fixed portion, and a second rotating body. It is connected so that the moving body interlocks.

According to a fourth aspect of the present invention, in the switch operating mechanism, the first rotating body is a first lever, the second rotating body is a second lever, and the two levers are connected by a link. Thus, both levers are interlocked.

According to a fifth aspect of the present invention, in the switch operating mechanism, the third torsion bar and the fourth torsion bar are connected to the first torsion bar such that one end is located at one end of the first torsion bar. And a third torsion bar fixedly attached to one end of the third torsion bar, wherein one end of the third torsion bar is rotatably supported by a fixed portion, and the third torsion bar is fixed to one end of the third torsion bar. A rotating body, and one end of the fourth torsion bar is rotatably supported by the fixed portion;
A fourth rotating body fixed to one end of the fourth torsion bar is operatively connected to the fourth rotating body, and a fifth rotating body and the first rotating body fixed to the other end of the third torsion bar are connected to each other. Are connected so as to interlock, and the sixth rotating body fixed to the other end of the fourth torsion bar and the second rotating body are connected so as to interlock.

According to a sixth aspect of the present invention, there is provided an operation mechanism for a switch, comprising: a first position at which a first rotating member and a fifth rotating member are connected; a second rotating member and a sixth rotating member; Are arranged so as to be different from the second position where the torsion bars are connected in the axial direction of each torsion bar.

According to a seventh aspect of the present invention, in the switch operating mechanism, the first torsion bar and the third torsion bar are arranged in a first plane, and the second torsion bar and the fourth torsion bar are arranged. The first torsion bar and the fourth torsion bar are opposed to each other in a parallel second plane opposed to the first plane, and the second torsion bar and the third torsion bar are opposed to each other. Are arranged so as to face each other.

According to an eighth aspect of the present invention, in the switch operating mechanism, the other end of the first torsion bar and one end of the second torsion bar are rotatably provided by bearings fixed to a fixed portion. I support it.

According to a ninth aspect of the present invention, in the switch operating mechanism, both ends of the third torsion bar and the fourth torsion bar are rotatably supported by bearings fixed to a fixed portion. .

According to a tenth aspect of the present invention, in the switch operating mechanism, a convex portion is formed at an end of the torsion bar, and the convex portion is supported by a bearing.

According to the eleventh aspect of the present invention, there is provided a switch operating mechanism, wherein a receiving hole is formed at an end of each torsion bar, and the receiving hole is supported by a bearing.

According to a twelfth aspect of the present invention, the operating mechanism of the switch comprises a receiving shaft fixed to an end of each torsion bar and the receiving shaft supported by a bearing.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 is a front view of the first embodiment, FIG. 2 is a perspective view of FIG. 1, and FIG. 3 is a cross-sectional view showing a main part of FIG. 1 to 3, reference numeral 29 denotes a housing; 30, a cam shaft supported by the housing 29; 31, a cam fixed to the cam shaft 30; 32, a pin provided on the cam 31; The closing latch 34 is a closing trigger and is engaged with the closing latch 33. 35 is a closing electromagnet having a plunger 35a, 36 is a trip latch, 37 is a trip trigger,
The trip latch 36 is engaged. 38 is a tripping electromagnet having a plunger 38a, 39 is a contact such as a circuit breaker housed in an arc-extinguishing chamber (not shown), and a fixed contact 39a.
And the movable contact 39b. A link mechanism 40 is connected to the movable contact 39b.

Reference numerals 41 and 42 denote rotating shafts which are supported by the housing 29 via bearings 43 and 44, respectively. A lever 45 having a pin 46 and a roller 47 and fixed to the rotating shaft 41 is connected to the movable contact 39 b via a link mechanism 40. Reference numeral 48 denotes a shock absorber connected to the lever 45 for reducing the shock at the time of opening and closing the movable contact 39b. Reference numeral 49 denotes a rotating shaft supported by the housing 29, which is driven by a motor (not shown) in the counterclockwise direction shown in FIG. 50 is a small gear fixed to the rotating shaft 49, 51 is a large gear fixed to the camshaft 30 and is configured to mesh with the small gear 50, when the torsion bars 70, 73, 74, 77 described later are charged. Some teeth are missing so that the meshing with the small gear 50 is disengaged. 52 is a lever fixed to the rotating shaft 42, 53
Is a link connecting the lever 52 and the large gear 51.

Numeral 54 denotes a cylindrical body fixed to the housing 29, 55 denotes a torsion bar having a fixing member 56 having one end fixed to the housing 29 of the fixed portion, and a pin 57 having the other end fixed to the cylindrical body 54 of the fixed portion.
It is rotatably supported by. 58 and 59 are torsion bars having different axial lengths arranged in parallel with the torsion bar 55, and are rotatably supported at different positions in the axial direction by pins 60 and 61 having respective ends fixed to a fixed portion. doing. Reference numeral 62 denotes a torsion bar arranged in parallel with the torsion bar 55. One end of the torsion bar is rotatably supported at the same position in the axial direction as the torsion bar 59 by a pin 63 fixed to the cylindrical body 54 of the fixed portion. 41.
64 is a rotating body fixed to the other end of the torsion bar 55,
It consists of gears. Reference numeral 65 denotes a rotating body fixed to one end of the torsion bar 58, which is constituted by a gear. Reference numeral 66 denotes a rotation fixed to the other end of the torsion bar 58, which is constituted by a gear and meshes with a gear of the rotating body 64. Reference numeral 67 denotes a rotating body fixed to one end of the torsion bar 59, which is constituted by a gear and meshes with a gear of the rotating body 65. Reference numeral 68 denotes a rotating body fixed to the other end of the torsion bar 59, which is constituted by a gear. Reference numeral 69 denotes a rotating body fixed to one end of the torsion bar 62, which is constituted by a gear, and meshes with a gear of the rotating body 68.

Reference numeral 70 denotes a torsion bar fixed to the casing 29 of the fixed portion with a fixing member 71, the other end of which is rotatably supported by a pin 72 fixed to the cylindrical body 54 of the fixed portion. 73, 74
Is a torsion bar arranged in parallel with the torsion bar 70, and each end is rotatably supported by pins 75 and 76 fixed to a fixed portion. 77 is a torsion bar 70
One end is rotatably supported by a pin 78 fixed to the cylindrical body 54 of the fixed portion, and the other end is fixed to the rotating shaft 42. 79 is a torsion bar 70
, Which is a rotating body fixed to the other end, and is constituted by a gear. 80
Is a rotating body fixed to one end of the torsion bar 73, and is constituted by a gear. Reference numeral 81 denotes a rotating body fixed to the other end of the torsion bar 73, which is constituted by a gear, and meshes with a gear of the rotating body 79. Reference numeral 82 denotes a rotating body fixed to one end of the torsion bar 74, which is constituted by a gear and meshes with the gear of the rotating body 80.
83 is a rotating body fixed to the other end of the torsion bar 74,
It consists of gears. Reference numeral 84 denotes a rotating body fixed to one end of the torsion bar 77, which is constituted by a gear, and meshes with a gear of the rotating body 83.

Next, the opening operation will be described. 1 to 3, the lever 45 has torsion bars 55, 58,
Rotational force is always given in the counterclockwise direction in FIG. 1 by 59 and 62, and is held by the tripping latch 36 and the tripping trigger 37. Therefore, when the trip electromagnet 38 is excited in this state, the plunger 38a operates to rotate the trip trigger 37 clockwise. Then, the release latch 36 is rotated counterclockwise by the reaction force from the pin 46. When the release latch 36 is disengaged from the pin 46, the lever 45 rotates counterclockwise, and the movable contact 39b is driven in the blocking direction via the link mechanism 40 to open from the fixed contact 39a. FIG. 4 shows a state in which the opening operation has been completed.

Next, the closing operation will be described. In FIG. 4, a cam 31 includes a cam shaft 30, a large gear 51, and a link 53.
And the torsion bars 70, 73, 7 via the lever 52
A clockwise rotational force as shown in FIG. 1 is given by 4 and 77, and is held by the closing latch 33 and the closing trigger 34. When the closing electromagnet 35 is excited in this state, the plunger 35a operates to rotate the closing trigger 34 clockwise. Then, the closing latch 33 rotates counterclockwise by the reaction force from the pin 32. As a result, the closing latch 33 is disengaged from the pin 32 and the cam 31 rotates clockwise, so that the cam 31 pushes up the roller 47 of the lever 45 and twists the torsion bar 62 clockwise to close the movable contact 39b. Drive to the side. Then, as shown in FIG. 5, the pin 46 is engaged with the release latch 36, and the closed state is maintained. During the closing operation, the movable contact 39b is driven by the force of the torsion bars 70, 73, 74, and 77, and is charged in the torsion bars 55, 58, 59, and 62 used for the closing operation. , 58, 59, and 62, the stored energy of the torsion bars 70, 73, 74, and 77 is made larger.

Next, the torsion bars 70, 73, 74, 7
7 is described. As shown in FIG. 5, immediately after the completion of the closing operation, the torsion bars 70, 73, 74, 7
7 is in a fired state. In FIG. 5, when the small gear 50 is rotated counterclockwise by a motor (not shown), the large gear 51 rotates clockwise to rotate the link 53 and the lever 52.
, The torsion bars 70, 73, 74, 77 are charged. At a position beyond the dead point where the tensile load direction of the link 52 intersects the center of the camshaft 30, the camshaft 3
At 0, a clockwise rotational force is given by the accumulating force of the torsion bars 70, 73, 74, 77. At the same time, since the large gear 51 lacks some teeth, the large gear 51 and the small gear 50 are disengaged from each other. Then, the accumulating force of the torsion bars 70, 73, 74, 77 is held by the engagement of the pin 32 and the closing latch 33.
Is closed. In this state, since the gears 50 and 51 are disengaged from each other, even if the small gear 50 is rotated by the motor (not shown), the rotational force is not transmitted to the large gear 51, so that the pin 32 and the closing latch 33 Is not overloaded.

Next, the torsion bars 55, 58, 59, 6
2 will be described with reference to FIG. FIG.
When the lever 45 is rotated clockwise in the illustration of FIG. 5, the torsion bar 62 is twisted about the pin 63. Then, the torsion bar 59 is twisted around the pin 61 via the respective rotating bodies 68 and 69. And each rotating body 6
When the torsion bar 58 is twisted via the rotating members 64 and 66 and the torsion bar 55 is further twisted via the rotating bodies 64 and 66, all the torsion bars 55 and 5
8, 59 and 62 are stored.

FIG. 6 shows each torsion bar 55, 58, 5
It is a schematic diagram which shows operation | movement of 9 and 62. In FIG. 6, when the torque T acts on the torsion bar 62, each rotating body 6
The torque T is transmitted to the torsion bar 59 via 8, 69. In this case, since the respective torsion bars 59 and 62 can relatively rotate by the respective rotating bodies 68 and 69, no displacement occurs even if they rotate in opposite directions. Therefore, no bending stress is generated in each of the torsion bars 59, 62. Then, the torsion bars 55, 5 to which the torque T is sequentially transmitted through the respective rotating bodies 65, 67 and 64, 66.
8 works similarly, so that each torsion bar 5
No bending stress occurs at 5, 58. Thus, since the torque T is sequentially transmitted, each of the torsion bars 55, 5
The same operation as a single torsion bar having the total length of 8, 59 and 62 is performed. In addition, each torsion bar 70, 7
For each of 3, 74 and 77, each torsion bar 55, 5
8, 59 and 62 operate in the same manner.

In the above embodiment, the case where four torsion bars 55, 58, 59 and 62 are used has been described. However, using the two torsion bars 55 and 62, the rotating body 64 and the rotating body 69 are used. The same effect can be expected by connecting. Also, the same effect can be expected by using three torsion bars 55, 58, and 59 and attaching the rotating shaft 41 instead of the rotating body 68 of the torsion bar 59.

Embodiment 2 FIG. FIG. 7 is a cross-sectional view illustrating a main part of the second embodiment, and FIG. 8 is a configuration diagram illustrating the main part as viewed from the line VIII-VIII in FIG. In FIG. 7, 59, 6
1 to 63 are the same as those of the first embodiment. 8
Reference numerals 5 and 86 denote rotating bodies composed of levers fixed to the torsion bars 59 and 62, and reference numeral 87 denotes links, which are the rotating bodies 85 and 8 respectively.
6 are connected via pins 88 and 89. In addition, 8
The link mechanism 90 is constituted by 5-89.

Next, the operation will be described. 7 and 8
8, when the torque T acts on the torsion bar 62 in the counterclockwise direction shown in FIG. 8, the rotating body 86 rotates counterclockwise around the pin 63, so that the rotating body 85 is connected to the pin 61 via the link 87. And rotates counterclockwise around the center of the arrow, resulting in the state shown in FIG. Thereby, the torsion bar 59 is twisted, so that the torque T of the torsion bar 62 is transmitted to the torsion bar 59.

Embodiment 3 FIG. 10 is a configuration diagram showing a main part of the third embodiment. In FIG. 10, 29, 55,
58, 59, 62, and 64 to 69 are the same as those in the first embodiment. Each torsion bar 55, 5
8, 59 and 62 are arranged as follows. That is, the torsion bars 55 and 58 are arranged in a first plane, and the torsion bars 59 and 62 are arranged in a second plane parallel to the first plane. And the torsion bar 55,
58 and the rotating bodies 64 and 66 have a U-shape, the torsion bars 58 and 59 and the rotating bodies 65 and 67 have a U-shape, and the torsion bars 59 and 62 and the rotating bodies 68 and 69 have a U-shape. It is arranged so that it becomes.

Embodiment 4 FIG. FIG. 11 is a cross-sectional view showing a main part of the fourth embodiment. In FIG. 11, reference numerals 54 and 64 are the same as those in the first embodiment. Reference numeral 91 denotes one end fixed to the housing 29 (see FIG. 3) of the fixed portion, and the other end
The torsion bar fixed to 4 has a projection 91a at the end. Reference numeral 92 denotes a bearing such as a bearing disposed between the convex portion 91a and the cylindrical body 54.
2, and is rotatably supported by a cylindrical body 54 of a fixed portion.

Embodiment 5 FIG. 12 is a sectional view showing a main part of the fifth embodiment. In FIG. 12, 54, 57,
Reference numeral 64 is similar to that of the first embodiment. 93 is a bearing such as a bearing mounted on the pin 57; 94 is a torsion bar having one end fixed to the housing 29 (see FIG. 3) of the fixed portion; It is rotatably supported by a body 54.

Embodiment 6 FIG. FIG. 13 is a sectional view showing a main part of the sixth embodiment. In FIG. 13, reference numerals 54 and 64 are the same as those in the first embodiment. Reference numeral 95 denotes a torsion bar having one end fixed to the housing 29 (see FIG. 3) of the fixing portion, and has a receiving hole 95a at the other end. 96 is a receiving hole 95
A receiving shaft 97 fitted to a is a bearing such as a bearing mounted on the receiving shaft 96, and is attached to a support hole 98 provided in the cylinder 54. Thus, the other end of the torsion bar 95 is connected to the receiving shaft 9.
6 and rotatably supported by a cylindrical body 54 of a fixed portion via a bearing 97.

[0038]

According to the first aspect of the present invention, the first torsion bar and the second torsion bar are connected by the interlocking first rotating body and the second interlocking body. Since each torsion bar can relatively rotate, the bending stress can be suppressed even if the number of divisions of the torsion bar increases, so that miniaturization can be achieved without increasing the strength of each component. be able to.

According to the second aspect of the present invention, since the first rotating body and the second rotating body are gears, the structure can be simplified.

According to the third aspect of the present invention, since the first to third torsion bars are used, the accumulating force can be increased.

According to the fourth aspect of the present invention, the first rotary member is used as the first lever, and the second rotary member is used as the second lever. Can be

According to the fifth aspect of the present invention, since the first to fourth torsion bars are used, the accumulating force can be increased.

According to the sixth aspect of the present invention, the first position where the first rotating body and the fifth rotating body are connected and the second position where the second rotating body and the sixth rotating body are connected. Is arranged in the axial direction of each torsion bar, the size of each torsion bar in the direction perpendicular to the axial direction can be reduced.

According to the invention of claim 7, the first torsion bar and the third torsion bar are arranged in the first plane, and the second torsion bar and the fourth torsion bar are connected to the first torsion bar. A first torsion bar and a fourth torsion bar face each other in a second plane parallel to the plane,
By three-dimensionally disposing the torsion bar and the third torsion bar so as to face each other, the installation volume can be reduced.

According to the eighth aspect of the present invention, each end of the first torsion bar and one end of the second torsion bar are rotatably supported by bearings fixed to the fixed portion. The loss of the torque transmission rate can be reduced.

According to the ninth aspect of the present invention, both ends of the third torsion bar and the fourth torsion bar are rotatably supported by bearings fixed to the fixed portion, so that torque loss is reduced. Can be reduced.

According to the tenth aspect of the present invention, the projections formed at the end of each torsion bar are supported by bearings, so that the structure can be simplified.

According to the eleventh aspect, the receiving hole formed at the end of each torsion bar is supported by the bearing, so that the structure can be simplified.

According to the twelfth aspect of the present invention, since the receiving shaft fixed to the end of each torsion bar is supported by the bearing, the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a first embodiment.

FIG. 2 is a perspective view of FIG.

FIG. 3 is a sectional view showing a main part of FIG. 1;

FIG. 4 is an explanatory diagram showing a completed state of the opening operation.

FIG. 5 is an explanatory diagram showing a state immediately after completion of a closing operation.

FIG. 6 is a schematic diagram showing the operation of each torsion bar.

FIG. 7 is a sectional view showing a main part of the second embodiment.

FIG. 8 is a configuration diagram showing a main part as viewed from the line VIII-VIII in FIG. 7;

FIG. 9 is an explanatory diagram showing an operation state of FIG. 7;

FIG. 10 is a configuration diagram showing a main part of a third embodiment.

FIG. 11 is a configuration diagram showing a main part of a fourth embodiment.

FIG. 12 is a configuration diagram showing a main part of a fifth embodiment.

FIG. 13 is a configuration diagram showing a main part of a sixth embodiment.

FIG. 14 is a front view showing a conventional switch operating mechanism.

FIG. 15 is a perspective view of FIG.

FIG. 16 is a sectional view showing a main part of FIG. 14;

FIG. 17 is an explanatory diagram showing an open state of FIG. 14;

FIG. 18 is an explanatory diagram showing a closed state of FIG.

FIG. 19 is a schematic view showing the operation of the torsion bar of FIG.

[Explanation of symbols]

39 switch, 40 link mechanism, 55, 58, 59,
62, 70, 73, 74, 77, 91, 94, 95 Torsion bar, 64-69, 79-86 Rotating body, 91
a convex part, 92, 93, 97 bearing, 94a receiving hole, 9
6 Bearing.

Claims (12)

[Claims] An energy stored in a first torsion bar and a second torsion bar is transmitted through a link mechanism, and the opening or closing operation of the switch is performed by the energy. In the switch operating mechanism, one end of the first torsion bar is fixed to a fixed portion, the other end is rotatably supported by the fixed portion, and a first rotating body is fixed to the other end, and The second torsion bar is disposed in parallel with and opposed to the first torsion bar.
A second rotating body interlocking with the first rotating body is fixed to one end of the torsion bar, and one end of the second torsion bar is rotatably supported by the fixing portion, and the other end is fixed to the second torsion bar. An operation mechanism for a switch, wherein the operation mechanism is rotatably supported by a portion and connected to the link mechanism. 2. The switchgear according to claim 1, wherein the first rotating body is a first gear, and the second rotating body is a second gear meshing with the first gear. Operation mechanism. 3. The third torsion bar is disposed so as to face one end of the first torsion bar in parallel with the first torsion bar and the second torsion bar. The one end of the torsion bar is rotatably supported by a fixed portion, and the third rotating body fixed to one end of the third torsion bar and the second rotating body are connected so as to interlock with each other. The operation mechanism for a switch according to claim 1, wherein 4. The method according to claim 1, wherein the first rotating body is a first lever, and the second rotating body is a second lever.
The operating mechanism for a switch according to claim 1, wherein the rotating body is a second lever, and the two levers are connected by a link so that the two levers are interlocked. 5. A third torsion bar and a fourth torsion bar are opposed to the first torsion bar and the second torsion bar in parallel such that one end is located at one end of the first torsion bar. And one end of the third torsion bar is rotatably supported by a fixed portion.
A fourth rotating body fixed to one end of the fourth torsion bar, and a fourth rotating body fixed to one end of the fourth torsion bar, wherein one end of the fourth torsion bar is rotatably supported by the fixed portion. The fifth rotating body fixedly connected to the other end of the third torsion bar is connected to the moving body so as to interlock with the first torsion bar.
And a sixth rotating body fixedly connected to the other end of the fourth torsion bar and the second rotating body are connected so as to interlock with each other. Item 2. An operation mechanism of the switch according to Item 1. 6. A torsion bar according to claim 1, wherein a first position at which the first rotating body and the fifth rotating body are connected and a second position at which the second rotating body and the sixth rotating body are connected are each. The switch operating mechanism according to claim 1, wherein the switch is arranged so as to be different in the axial direction. 7. A first torsion bar and a third torsion bar are arranged in a first plane, and a second torsion bar and a fourth torsion bar are arranged in parallel with each other facing the first plane. The first torsion bar and the fourth torsion bar face each other, and the second torsion bar and the third torsion bar face each other in a second plane. The switch operating mechanism according to claim 5 or 6, wherein the switch is operated. 8. The apparatus according to claim 1, wherein each of the other end of the first torsion bar and one end of the second torsion bar is rotatably supported by a bearing fixed to a fixed portion. Item 8. An operation mechanism of the switch according to Item 7. 9. The apparatus according to claim 4, wherein both ends of the third torsion bar and the fourth torsion bar are rotatably supported by bearings fixed to a fixed portion. Switch operation mechanism. 10. The switch operating mechanism according to claim 8, wherein a projection is formed at an end of each torsion bar, and the projection is supported by a bearing. 11. The operating mechanism for a switch according to claim 8, wherein a receiving hole is formed at an end of each torsion bar, and the receiving hole is supported by a bearing. 12. The operating mechanism for a switch according to claim 8, wherein a receiving shaft is fixed to an end of each torsion bar, and the receiving shaft is supported by a bearing.