JP2664933B2 - Automatic switch - Google Patents

Description

The present invention relates to an automatic switch.

[Prior Art] Conventional automatic switches have the following opening and closing operation mechanisms.

That is, in the conventional opening / closing operation mechanism, a solenoid in which a plunger protrudes only to one side for automatic closing is used, and a power storage mechanism, an opening / closing mechanism, and a locking mechanism are all connected to an end of the plunger of the solenoid protruding side. Was.

The opening / closing operation mechanism 110 thus configured is, for example, a twelfth
As shown in the figure, a conventional opening / closing operation mechanism 110 will be described below with reference to FIG.

An operation lever 114 pivotally supported by a fixed shaft 113 is connected to an end of the solenoid 111 on the side where the plunger 112 protrudes via a link. The fixed shaft 113 further supports a lever of an opening / closing mechanism (not shown), and the lever rotates integrally with the drive lever 114. Further, a lever of this opening / closing mechanism is connected to a drive shaft for rotating a movable electrode (not shown), and the automatic switch is opened and closed by the rotation of the drive lever 114.

Further, an animal power mechanism 116 having a storage spring 115 is connected to the operation lever 114. The energy storage mechanism 116 accumulates energy at the time of automatic insertion, and quickly rotates the operation lever 114 by the urging force of the energy accumulation spring 115 at the time of automatic opening.

Further, a lock mechanism 119 having locking members 117 and 118 is connected to the energy storage mechanism 116. This locking mechanism 119
Holds the stored state of the power storage mechanism 116 stored during automatic closing, while protruding the plunger 120a of the trip coil 120 and rotating the locking members 117 and 118 during automatic opening to lock the stored state. Is to be released.

[Problems to be Solved by the Invention] However, in the opening / closing operation mechanism 110 of the automatic switch configured as described above, the power storage mechanism 116, the opening / closing mechanism, and the lock mechanism 119 are all composed of the plunger 112 of the solenoid 111.
Since these are connected to the same end, the layout of each of these mechanisms is limited. As a result, there is a problem that a useless space is generated and the opening / closing operation mechanism 110 cannot be made compact.

Means for Solving the Problems In order to solve the above problems, in the present invention, an automatic closing solenoid, a power storage mechanism for releasing the storage power to open and close an opening and closing mechanism of an opening and closing unit, and the opening and closing unit An automatic switch with a lock mechanism that locks the automatic closing state of the automatic solenoid, wherein the plunger of the closing solenoid that is instantaneously excited at the time of closing projects in both end directions, and one of the plungers is connected to the power storage mechanism and the opening and closing mechanism, The other is connected to a lock mechanism so as to set the lock of the lock mechanism.

[Operation] In the present invention, the energy storage mechanism and the opening / closing mechanism are arranged so as to communicate with one end of the plunger of the solenoid, and the lock mechanism is arranged so as to communicate with the other end of the plunger.

Then, the plunger of the solenoid drives the energy storage mechanism, the opening / closing mechanism, and the lock mechanism, respectively, and protrudes toward one end when the solenoid is not excited, and protrudes toward the other end when the solenoid is momentarily excited. Set the switch to the automatic closing state.

Embodiment An embodiment embodying the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, the main body case 2 of the automatic switch 1
Is formed in an octagonal cross section. A pressure release section 3 is provided at one end, and a support plate 5 for supporting an opening / closing operation mechanism 4 is attached to the other end.

At the upper part of the main body case 2, a pair of plate-like support fittings 6 are attached substantially at the center and at one end, and a rod is provided on the upper part of the main body case 2 from one end to the other end. Two arc horns 7 consisting of a body are attached.

Further, a pair of legs 8 formed of a rod is provided at a lower portion of the main body case 2.

Load-side and electrode-side bushings 9, 10 are hermetically inserted into and attached to both side walls of the main body case 2 for each phase. A fixed electrode 11 connected to a conductive member in the bushing 9 protrudes inside the bushing 9 on the load side.

A fixed electrode (not shown) protrudes from an inner end of the bushing 10 on the electrode side in the same manner as the fixed electrode 11 on the load side,
A movable electrode (not shown) is slidably disposed on the outer periphery. The movable electrode is a fixed electrode on the load side.
It is arranged so as to be able to approach and separate from 11. A support member 13 made of a cylindrical insulating synthetic resin is provided on the outer periphery of the movable electrode.
Are connected to each other, and one end of a bellows 14 is attached to a base end thereof. The other end of the bellows 14 is attached to the inside of the electrode side bushing 10. An orifice cone 15 is attached to the tip of the support member 13.

Next, a description will be given of the drive shaft 16 that drives the movable electrode to be turned on and off via the support member 13.

At the lower part of the center of the inner surface of the support plate 5 of the body case 2,
A bearing 17 shown in FIG. 4 is provided, and a mounting member 18 is fixed to the inner surface of the end of the corresponding main body case 2 on the pressure release section 3 side. The drive shaft 16 has one end supported by the bearing 17 and the other end supported by the mounting member 18 so as to be rotatably bridged between both end surfaces of the main body case 2.

An insulating swing arm 19 is fixed to the drive shaft 16 by a bolt corresponding to each phase. The tip of the positive arm 19 is formed in a U-shape, and the supporting member 13 of the movable electrode is rotatably supported on the rocking arm 19.

When the drive shaft 16 is turned on and off, the support member 13 is driven to be turned on and off via the swing arm 19.

Next, the opening / closing operation mechanism 4 will be described with reference to FIGS.

A mechanism case 21 is attached to the support plate 5 of the main body case 2. The mechanism section case 21 is formed in a box shape with one side opening, and a step portion 22 is provided in a circular shape at the opening. An O-ring 23 is housed in the step portion 22 to seal the opening.

In the mechanism case 21, the first side plate 24 is attached to the support plate 5.
Is fixed, and a second side plate 25 is disposed on the same side plate 24 in parallel and separated via support rods 51, 52, 53, 54 as stoppers described later.

Further, as shown in FIGS. 4 and 5, the first and second side plates 24,
A lock mechanism support plate 28 is provided on the upper right side of the space 25. The lock mechanism supporting plate 28 is a first connecting plate 26 having a channel-like cross section with respect to the first side plate 24, and a second connecting plate 27 which is arranged vertically apart from the second side plate 25. And a support plate 79.

Between the first and second side plates 24 and 25, a solenoid 29 is attached via a support member 30 at the lower center of the first side plate 24. The solenoid 29 is of an instantaneous excitation type, and the plunger 31 can be moved between two positions: a closing standby position (see FIG. 5) protruding rightward of the solenoid 29 and a closing position (see FIG. 8) protruding leftward. is there.

The left end 33 of the solenoid 29 has a power storage mechanism 34.
And an opening / closing mechanism 35, and a lock mechanism 36 for locking the closing state is connected to the right end 32. 38
Is a switch operation plate provided on the plunger 31.

The storage mechanism 34 will be described. As shown in FIG. 3, an operation shaft penetrating the support plate 5 is provided between a center upper portion of the first side plate 24 and a bearing 39 provided at an upper side wall of the mechanism case 21. 40 is rotatably mounted. Further, a manual operation handle 41 is fixed to an outer end of the operation shaft 40 protruding from the mechanism case 21 to the outside.

Immediately inside both sides 24 and 25 with respect to the operation shaft 40, the base ends of the pair of first energy storage levers 42 are rotatably supported via spacers 40a. The base ends of a pair of second energy storage levers 43 are fixed slightly inside one energy storage lever 42, and the second energy storage lever 43 and the operating shaft
It is designed to rotate integrally with 40. A shaft 45 is provided between the distal ends of the first energy storage levers 42, and two cylindrical spring guide rods 46 are rotatably supported at the distal ends of the shaft 45 on the coaxial 45, respectively. The other end of the second energy storage lever 43 has an elongated hole 43.
a are penetrated, and both ends of a power storage pin 47 bridged between the second power storage levers 43 are inserted and locked in both long holes 43a. Two spring support rods 48 are rotatably supported at the base ends of the energy storage pins 47.
The distal end of 48 is slidably inserted into each of the spring guide rods 46.

Then, both spring support rods 48 inserted into both spring guide rods 46 are provided.
, Each of which has a double-fit spring 50, which is interposed between the shaft 45 and the storage pin 47 in a compressed state.

Further, between the first and second side plates 24 and 25, between the upper left side and the upper center, the first energy storage lever 42 and the second animal power lever 43 restrict the amount of rotation in the clockwise direction, respectively. A first stopper 51 and a second stopper 52 are respectively erected, and further below the first and second stoppers 51 and 52, the first energy storage lever 42 and the second energy storage lever 43 are rotated in a counterclockwise direction. Third and fourth stoppers 53 and 54 for respectively restricting the amount of rotation of the shaft are provided.

As shown in FIG. 5, the plunger of the solenoid 29
A little obliquely above the left end of the second end plate 31
A rotation shaft 56 that penetrates the first side plate 24 is rotatably mounted between the bearing 25 and a bearing 55 (see FIG. 3) provided on the left side of the support plate 5.

A pair of automatic closing levers 57 are provided on the rotating shaft 56 so as to sandwich the left end 33 of the plunger 31 of the solenoid 29.
Is fixed, and a shaft 58 is provided between the lower ends of the automatic closing levers 57. A roller 59 is rotatably supported on the shaft 58 so as to be able to contact and separate from the left end 33 of the plunger 31 of the solenoid 29.

A lower end of a first driven lever 60 is fixed to the first side plate 24 side of the rotation shaft 56, and a lower end of a first connection link 61 is rotatable at an upper end of the first driven lever 60. It is pivoted. Further, the upper end of the first connection link 61 is rotatably supported near the center of the lever on the first side plate 24 side of the pair of first energy storage levers 42.

Next, a description will be given of the opening / closing mechanism 35. As shown in FIGS. 6 and 7, a driving lever 63 is fixed to one end of a rotating shaft 56 projecting from the bearing 55 into the main body case 2, and
57, the first driven lever 60 and the driving lever 63 rotate integrally.

One end of a second connection link 64 is rotatably mounted on the end of the drive lever 63, and an adjust bolt 65 is interposed at the center of the second connection link 64, so that the second connection The length of the link 64 can be adjusted by an adjustment bolt 65. An open / close lever 66 is fixed to the drive shaft 16 in the main body case 2, and the other end of the second connection link 64 is rotatably mounted on a tip of the open / close lever 66.

 Next, the lock mechanism 36 will be described.

As shown in FIGS. 5 to 11, a support shaft 68 is provided between the right central portions of the side plates 24 and 25. At the center of the support shaft 68, the upper ends of a pair of lock operation levers 69 arranged so as to sandwich the right end of the plunger 31 of the solenoid 29 are rotatably supported via a spacer 68a. Is rotatably supported with respect to the right end 32 of the plunger 31. The lower ends of a pair of second driven levers 70 are supported on the support shaft 68 between the second side plates 25 via the spacers 68a, and are integrally rotated with the lock operation lever 69. One end of a lock link 72 as a pair of second lock members is rotatably mounted on the other end of the second driven lever 70, and a shaft 73 is provided between the other ends of the lock link 72. The first locking roller 74 is rotatably supported on the coaxial 73 while being mounted. A twist spring 75 is wound around the support shaft 68, and the lock operation lever 69 and the second driven lever 70 are always biased by the twist spring 75 to rotate counterclockwise in FIG. The torsion spring 75 has a sufficient spring force to move the plunger 31 from the input position to the input standby position. Reference numeral 71 denotes a stopper that regulates the amount of rotation of the driven lever 70 in the counterclockwise direction.

A fixed shaft 80 is provided between the lock mechanism support plate 28 and the upper portion of the second side plate 25, and a pair of holding levers 81 are mounted on the fixed shaft 80.
Is rotatably supported at one end. And holding lever
A shaft 82 is bridged between the other ends of 81, and a second locking roller 83 is rotatably supported on the coaxial 82. Furthermore, this axis 82
One end of a pair of lock links 84 is rotatably supported on the other end, and the other end of the lock link 84 is rotated about a shaft 73 that supports the first locking roller 74 at the locking link 72. It is movably supported. A stopper 85 is provided at the left center of the lock mechanism support plate 28 to restrict the clockwise rotation of the holding lever 81 in the locked state.

A support shaft 86 is installed between the lower left portion of the lock mechanism support plate 28 and the center of the second side plate 25, and the support shaft 86 has a base end of a locking piece 89 as a first locking member. Are rotatably supported. A locking portion 90 capable of locking the first locking roller 74 of the locking link 72 is formed on the upper end of the locking piece 89, and a locking projection is formed on the lower end of the locking piece 89. 91 are protruding. A twist spring 92 is attached to the bearing shaft 86.
Is wound, and the locking piece 89 is always in the fifth position by the twist spring 92.
In the figure, it is urged to rotate counterclockwise. Further, on the right side of the locking piece 89, a stopper 93 that can be locked to the locking projection 91 is provided, and restricts the rotation of the locking piece 89 in the counterclockwise direction in the open state.

In the locked state of the lock mechanism, the lock link 84 is in the lock position shown in FIG. 8, and the first lock roller 74 of the lock link 72 is locked by the lock piece 89,
In the unlocked state, the lock link 84 is in the unlocked position shown in FIG. 5, and the first locking roller 74 is a locking piece.
It is in contact with the top of 89.

Next, a lock release mechanism 37 linked to the lock mechanism 36 configured as described above will be described.

A trip coil 76 is mounted between the support plate 79 and the second connecting plate 27 which are provided between the second side plate 25 and the lock mechanism support plate 28.

A support shaft 94 is provided between the upper center of the lock mechanism support plate 28 and the upper portion of the second side plate 25, and the end of the support shaft 94 on the lock mechanism support plate 28 side is separated from the lock mechanism support plate 28 by It extends to one side plate 24 side.

A lock lever 95 as a third lock member is rotatably supported at the center of the support plate 94.
One end of 95 is arranged at a position corresponding to the plunger 96 of the trip coil 76, and the other end is arranged so as to be able to contact the second locking roller 83. Furthermore, a twist spring is provided on the support shaft 94.
The locking lever 95 is always urged to rotate clockwise by the torsion spring 97.

Further, one end of a first manual release lever 100 that rotates integrally with the locking lever 95 is supported at the tip of a support shaft 94 that extends from the lock mechanism support plate 28 toward the first side plate 24. I have.
A release link 101 is rotatably mounted on the other end of the first manual release lever 100, and a slot 1 is provided on the other end of the release link 101.
02 is transparent. On the other hand, one end of a second manual release lever 103 is attached to the operation shaft 40, and the second manual release lever 103 rotates integrally with the second power storage lever 43 and the manual operation handle 41, and locks. It is movable between two positions, a position (see FIG. 8) and an unlock position (see FIG. 9). The other end of the second manual release lever 103 has a pin 104
The pin 104 is a long hole 102 of the release link 101.
It is slidably inserted in the inside.

And in the lock release mechanism 37 configured as described above,
The lock state of the lock mechanism 36 can be released both automatically and manually.

In this embodiment, the manual opening / closing mechanism 4 includes a first energy storage lever 42, a second energy storage lever 43, an energy storage spring 50, first and second manual release levers 100 and 103, and a release link 101. It is composed of

The position corresponding to the axis of the tip of the automatic closing lever 57, the switch operating plate of the plunger 31 of the solenoid 29,
The micro switch 10 is located at a position corresponding to 38 and a position corresponding to the pin 104 of the second manual release lever 103.
5,106,107 are provided.

Next, the operation of the opening / closing operation mechanism 4 in the automatic switchgear 1 configured as described above will be described.

Automatic closing Now, the case of performing automatic closing from the open state will be described. First, in the open state shown in FIG.
41 is located in the open position. In this state, the first and second energy storage levers 42 and 43 are separated from each other by the biasing force of the energy storage spring 50, and the upper end of the first energy storage lever 42 is abutted and locked by the first stopper 51. The lower end of the second energy storage lever 43 is abutted and locked by a fourth stopper 54. At this time, the energy storage pin 47 is located at the lower end of the long hole 43a and the operation shaft 4
Dead point A connecting 0 to axis 45 of first energy storage lever 42
, The accumulation spring 50 is in an accumulation state. Due to the storage power of this storage spring 50, the first connection link 61,
The plunger 31 of the solenoid 29 in the demagnetized state projects rightward via the first driven lever 60, the rotating shaft 56, and the automatic closing lever 57, and the lower end of the lock operation lever 69 is pressed rightward. Then, the second driven lever 70 is locked by the stopper 71, the locking link 72 is pressed to the left, and the locking roller 74 of the locking link 72 is located on the left side of the locking portion 90 of the locking piece 89. Then, it is in contact with the upper part of the locking piece 89. Furthermore, holding lever 81,
The lock link 84 is disposed in an inverted shape, and the engagement end of the locking lever 95 is brought into contact with and locked to the second locking roller 83 of the shaft 82 by the urging force of the torsion spring 97, so that the holding lever 81 is It is located at a locking position for engaging with the stopper 85. Therefore, in this state, the lock mechanism 36 is in the unlocked state.

When the solenoid 29 is momentarily excited in this state, the eighth
As shown in the figure, the plunger 31 protrudes leftward against the urging force of the energy storage spring 50, and the automatic closing lever 57 is rotated clockwise. Due to the clockwise rotation of the automatic closing lever 57, the opening / closing mechanism 35 causes the drive lever 63 to rotate clockwise from the open state shown in FIG. 6 as shown in FIG. Then, the drive shaft 16 is rotated clockwise through the second connection link 64 and the opening / closing lever 66, and the movable electrode (not shown) is turned on.

On the other hand, at this time, the first driven lever 60 that rotates integrally with the natural input lever 57 is also rotated clockwise, and the first power storage lever 42 is rotated clockwise through the first connection link 61. By being moved, the storage spring 50 is stored.

Further, in the lock mechanism 36, when the right end 32 of the plunger 31 of the solenoid 29 is retracted, the lock operation lever 69 rotates counterclockwise against the urging force of the twist spring 75, and the second The driven lever 70 also rotates counterclockwise. Then, the locking link 72 moves rightward, and the first locking roller 74 resists the urging force of the twist spring 92, and the locking piece 89
Is slightly clockwise, and gets over the upper part of the locking portion 90. When the first locking roller 74 moves over the upper portion of the locking portion 90, the locking piece 89 is moved by the biasing force of the torsion spring 92 to the stopper 93.
The first locking roller 74 is locked to the right side of the locking portion 90, and the locking operation of the locking mechanism 36 is completed. Although the lock link 84 is moved rightward by the movement of the locking link 72, the holding lever 81 does not rotate because the second locking roller 83 is locked by the locking lever 95.

When the lock mechanism 36 is locked as described above, the plunger 31 of the solenoid 29 is urged rightward by the accumulated force of the accumulation spring 50, but the protrusion of the plunger 31 is restricted, and the automatic closing shown in FIG. State is maintained.

In this closed state, the microswitch 10
5 is turned on by the shaft 58 of the automatic closing lever 57, and the microswitch 106 is turned on by the switch operating plate 38 of the plunger 31 of the solenoid 29, and outputs a closing signal to a remote device to notify that the state is the closing state.

Next, in order to manually enter from the open state, the operating shaft 40 is rotated clockwise through the manual operation handle 41 in the open state shown in FIG. The storage lever 43 is rotated clockwise against the biasing force of the storage spring 50.

With the rotation of the second power storage lever 43, the power storage pin 47
Exceeds the dead point A of the operation shaft 40 and the shaft 45, the urging force of the energy storage spring 50 causes the second energy storage lever 43 to rotate more quickly in the same direction, and the first energy storage lever 42
Is rotated counterclockwise. Then, the second power storage lever 43 is locked by the second stopper 52, and the first power storage lever 42 is locked by the third stopper 53. At this time, the rotation shaft 56 is rotated clockwise via the first connection link 61 and the first driven lever 60.

As a result, the opening / closing mechanism 35 is closed in the same manner as the automatic closing, and the shaft 58 of the automatic closing lever 57 turns on the micro switch 105 by the clockwise rotation of the rotating shaft 56.

On the other hand, in the lock release mechanism 37, the rotation of the operation shaft 40 causes the second manual release lever 103 to rotate counterclockwise and move to the lock release position. Then, the pin 104 of the second manual release lever 103 slides downward in the long hole 102 of the release link 101 and presses against the lower end of the long hole 102 to move the release link 101 downward. As a result, the first manual release lever 100 and the locking lever 95 are rotated in the counterclockwise direction, but the states of the other levers and the like of the lock mechanism 36 do not change and are maintained in the open state.

Automatic release Next, a case of automatic release from the automatic closing state using the trip coil 76 will be described.

In the automatic closing state shown in FIG.
Is in a locked state, and as a result, the protrusion of the plunger 31 of the solenoid 29 to the right is restricted as described above. Then, the automatic closing lever 57 abuts on the left end surface 33a of the plunger 31 via the roller 59 by the biasing force of the spring, and the rotation is regulated by the plunger 31.

In this state, the trip coil as shown in Fig. 10
When the coil 76 is excited, the plunger 96 of the trip coil 76 projects upward, and the locking lever 95 is turned counterclockwise against the urging force of the twist spring 97. Then the locking lever
The engagement end of the engagement lever 95 is released from engagement with the second engagement roller 83, and is separated. The rotation of the holding lever 81 in the counterclockwise direction and the upward movement of the lock link 84 are allowed. The locked state of 36 is released.

As a result, the first storage lever 42 is moved clockwise from the state shown in FIG.
Rotates until regulated by 51. Then, the rotating shaft 56 is rotated in the opening direction (counterclockwise direction) via the first connecting link 61 and the first driven lever 60, and the movable electrode (not shown) is opened and closed via the opening / closing mechanism 35. Release (see FIG. 6).

Further, the rotation of the rotation shaft 56 in the counterclockwise direction causes the plunger 31 to protrude to the closing standby position, and the lock operation lever 69 and the second driven lever 70 rotate in the counterclockwise direction. As a result, the locking roller 74 of the locking link 72 rotates the locking piece 89 in the clockwise direction against the urging force of the torsion spring 92, and crosses the locking portion 90 left side of the locking piece 89, The trip release operation is completed (see FIG. 5).

Manual release In the manual release, the operation is different between (a) manual release from the manual input state and (b) manual release from the automatic input state. Therefore, these two cases will be separately described.

(A) Manual release from the manual closing state In the manual closing state shown in FIG. 9, when the manual operation handle 41 is rotated to rotate the operation shaft 40 in the counterclockwise direction, the second power storage lever 43 Is rotated counterclockwise while accumulating the spring 50 against the urging force of the energy storage spring 50.
When the power storage pin 47 moves downward beyond the dead point A of the operation shafts 40 and 45 with the counterclockwise rotation of the second power storage lever 43, the first power storage lever 42 It is rotated clockwise by the urging force of the energy storage spring 50 until it is locked by the first stopper 51. The rotation of the first energy storage lever 42 causes the rotation shaft 56 to rotate in the opening direction via the first connection link 61 and the first driven lever 60, and the movable electrode (not shown) via the opening / closing mechanism 35. ) Is open.

On the other hand, in the lock release mechanism 37, the second manual release lever 103 is rotated counterclockwise with the rotation of the operation shaft 40, and the pin 104 of the second manual release lever 103 is released from the release link 101. And slides in the long hole 102 to contact the upper end of the long hole 102. Then, the release link 101 is moved upward, the first manual release lever 100 and the locking lever 95 are rotated clockwise, and the states of the other levers of the lock mechanism 36 do not change.

In addition, the micro switch 107 is turned on by the upward movement of the pin 104 of the second manual release lever 103, and outputs an open signal to the remote device to notify that it is open.

(B) Manual release from the automatic closing state In this case, first, the manual operating handle 41 is rotated to bring the operating mechanism 4 into the manual closing state, and then the manual operating handle 41 is further rotated in the opposite direction. To open manually.

Hereinafter, this operation will be described in detail. First, in the automatic closing state shown in FIG.
That is, the operation shaft 40 is rotated clockwise by rotating in the input direction.

Then, the second energy storage lever 43 rotates clockwise while accumulating the energy storage spring 50 in the energy accumulation state through the energy accumulation pin 47 in the automatic closing state. 40
When the shaft moves upward beyond the dead point A of the shaft 45, the second power storage lever 43 is quickly rotated clockwise by the urging force of the power storage spring 50 and is locked by the second stopper 52. .

At this time, in the lock release mechanism 37, the operation shaft 40
11, the second manual release lever 103 is rotated clockwise as shown in FIG. 11, and the pin 104 of the second manual release lever 103 passes through the long hole 102 of the release link 101. It slides and presses and contacts the lower end of the long hole 102. Then, the release link 101 is moved downward, the first manual release lever 100 is rotated counterclockwise, and the interlocking locking lever 95 is also rotated counterclockwise.

As a result, the engaging end of the locking lever 95 is
The engagement with the lever 83 is released, the holding lever 81 can rotate in the counterclockwise direction, and the lock link 84 is allowed to move upward.

As a result, the urging force of the twist spring 75 causes the locking link 72 to move.
The first locking roller 74 moves over the locking portion 90, and the twist spring
The locking piece 89 rotates clockwise against the urging force of 92,
The locked state of the lock mechanism 36 is released.

Then, the second driven lever 70 and the lock operation lever 69 rotate clockwise by the urging force of the torsion spring 75,
Accompanying this, the plunger 31 of the solenoid 29 moves to the charging standby position.

After operating the manual operation handle 41 to bring the automatic switch 1 into the manual closing state, the same operation as the manual opening in the manual closing state is performed.

Then, the energy storage mechanism 34, the opening / closing mechanism 35, and the lock mechanism 36 change in the same manner as in the case (a), and the automatic switch 1 is opened.

In addition, the micro switch 107 is turned on by the upward movement of the pin 104 of the second manual release lever 103, and outputs an open signal to the remote device to notify that it is open.

As described above in detail, the present embodiment has the following effects.

(B) By connecting a power storage mechanism 34 and an opening / closing mechanism 35 to the left side of a solenoid 29 having a plunger 31 protruding on both the left and right sides, and connecting a lock mechanism 36 to the right side of the plunger 31, eliminating useless space, The entire automatic switch 1 can be made compact.

(B) Further, with this configuration, the plunger 31 of the solenoid 29 also functions as a link connecting the power storage mechanism 34 and the lock mechanism 36, so that a new link is unnecessary, and the automatic switch 1 is formed more compact. be able to.

(D) When manually releasing from the automatic closing state, the lock mechanism 36 is simultaneously unlocked by manually operating the manual operation handle 41, so that the automatic switch 1 can be easily manually released from the automatic closing lock state. .

[Effects of the Invention] As described above in detail, according to the present invention, the energy storage mechanism and the opening / closing mechanism are provided at one end of the closing solenoid, and the locking mechanism is provided at the other end of the closing solenoid. Since they are dispersed and connected, there is no wasteful space, and as a result, there is an effect that the entire automatic switch can be made compact.

[Brief description of the drawings]

FIG. 1 is a sectional view of an automatic switch embodying the present invention, and FIG.
FIG. 3 is a partially cutaway sectional view of the automatic switch, FIG. 3 is a sectional view of the open / close operation mechanism of the automatic switch, FIG. 4 is a sectional view of the open / close operation mechanism, and FIG. FIG. 6 is a cross-sectional view in the open state, FIG. 6 is a front view of the open / close mechanism provided in the open / close operation mechanism in an open state, FIG. 7 is a front view of the open / close mechanism provided in the open / close operation mechanism in a closed state, FIG. The figure is a sectional view of the opening and closing operation mechanism in an automatic closing state, and FIG.
The figure is a cross-sectional view of the opening and closing operation mechanism in a manually closed state,
FIG. 10 is a cross-sectional view of the lock mechanism provided in the opening / closing operation mechanism at the time of automatic opening, FIG. 11 is a cross-sectional view of the lock mechanism provided in the opening / closing operation mechanism at the time of manual opening, and FIG. It is a front view of the opening and closing operation mechanism of an automatic switch. 29: Solenoid, 31: Plunger, 34: Energy storage mechanism, 35: Opening / closing mechanism, 36: Lock mechanism, 37: Lock release mechanism, 41: Manual operation handle, 42: First storage Force lever, 43 ... Second energy storage lever, 50 ... Energy storage spring.

Claims (1)

(57) [Claims] 1. An automatic switch comprising: a solenoid for automatic closing; a power storing mechanism for opening and closing an opening / closing mechanism of an opening / closing section by releasing a storage force; and a lock mechanism for locking an automatic closing state of the opening / closing section. , A plunger of a closing solenoid that is instantaneously excited when closed is protruded in both ends, one of which is connected to the power storage mechanism and the opening / closing mechanism, and the other is connected to a lock mechanism so as to set a lock of the lock mechanism. Automatic switch characterized by doing.