JPH09282980A - Breaker device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact breaker device having excellent safety. SOLUTION: A pair of fixed electrodes 11a, 11b are stood inside of a case 1. A movable electrode 31 to be inserted and drawn is provided in a fitting body 35, and the flitting body 35 is provided with a handle 40. The handle 40 is supported by two supporting shafts 46a, 46b, and in the normal condition, one supporting shaft 46a is energized for movement to a position displaced from the other supporting shaft 46a by the energizing force of a tensile coil spring 48. A pushing pin 50 for pushing up the supporting shaft 46a is stood in an upper casing 3. On the way of the inserting operation of the movable electrode 31, since the axis of both the supporting shafts 46a, 46b are displaced from each other, the handle 40 can not be fallen, and the movable electrode is smoothly inserted in the standing condition. When both the movable electrode 31 and fixed electrodes 11a, 11b are normally engaged with each other, the supporting shaft 46a is pushed up to the concentrical position with the supporting shaft 46b by the pushing pin 50, and the handle 40 can be fallen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breaker device which is used, for example, as a power line of an electric vehicle.

[0002]

2. Description of the Related Art Conventionally, as a breaker device of this type, a lever-type movable electrode is rotatably supported on one of a pair of fixed electrodes provided separately from each other on a substrate, and the movable electrode is in an upright posture. Tilted from and inserted into the elastic holding piece formed on the other fixed electrode so as to establish conduction,
A so-called knife switch type was used.

[0003]

However, in the knife switch type as described above, the conduction path is exposed, and in particular, a large current flows through the power line of the electric vehicle, so that safety is taken into consideration. In this case, it was not always suitable. The present invention was completed in view of the above circumstances, and an object of the present invention is to provide a breaker device that is excellent in safety and compact in size.

[0004]

As a means for achieving the above object, the invention of claim 1 is a pair of fixed electrodes provided in a casing, and a space between the fixed electrodes which is inserted into and removed from the fixed electrodes. A movable electrode that disconnects or connects the movable electrode, a handle for tilting with respect to the movable electrode, and a tilting member that is interposed between the handle and the movable electrode to lock the handle in a tiltable manner. A moving member that is movable between a blocking position and a tilting allowable position that allows tilting of the handle; a biasing member that constantly biases the moving member to the tilting blocking position; An operating member which is provided in the casing so as to be engageable with the moving member in accordance with the inserting operation, and which moves the moving member to the tilt allowable position when the movable electrode is properly fitted to the fixed electrode. Characterized in was with.

According to a second aspect of the invention, in the first aspect of the invention, the handle is tiltably supported with respect to the movable electrode by two shafts which can be aligned on the same axis, and one of the shafts is It is movably installed between a separated position separated from the axis of the other shaft and an aligned position aligned with the axis, and is normally urged to move to the separated position by an urging member and to the casing. Is provided with an actuating member which engages with the one shaft when the movable electrode is inserted and moves the one shaft to the alignment position when the movable electrode is properly fitted to the fixed electrode. It has a feature in that it has a structure.

According to a third aspect of the invention, in the first aspect of the invention, a slider and a guide groove for guiding only relative sliding of the slider are provided between the handle and the movable electrode. The guide groove is provided with a tilting allowance portion that allows relative displacement of the slider to allow tilting of the handle, and the slider is always biased by an urging member to allow the tilting allowance portion. Is urged to move to a position separated from, and the casing is engaged with the slider with the inserting operation of the movable electrode, and when the movable electrode is properly fitted to the fixed electrode, The present invention is characterized in that an operating member for moving the slider to the position of the tilt permitting portion of the guide groove is provided.

[0007]

[Action]

<Invention of Claim 1> When the handle is erected and the movable electrode is inserted, insertion is performed while the handle is held in the upright posture while the moving member is biased to the tilt preventing position. When the movable electrode is properly fitted to the fixed electrode, the actuating member moves the moving member to the tilt allowable position against the biasing force, and the handle can be tilted.

<Invention of Claim 2> When the handle is erected and the movable electrode is inserted, the insertion is performed while the handle is held in the upright posture with one shaft displaced from the other. When the movable electrode is properly fitted to the fixed electrode,
The actuating member allows one shaft to be aligned with the other shaft on the same axis, allowing the handle to tilt.

<Invention of Claim 3> When the handle is erected and the movable electrode is inserted, the handle is held in the upright posture with the slider fitted in a position separated from the tilt permitting portion of the guide groove. It is inserted as it is. When the movable electrode is properly fitted to the fixed electrode, the slider moves to the tilt permitting portion of the guide groove, and the handle can be tilted while the slider is relatively displaced.

[0010]

The breaker device of the present invention is excellent in safety because of the structure in which the conducting path is housed in the casing.
Further, since the handle can be tilted, the entire device can be compactly assembled. Further, since the handle is held in the upright posture during the inserting operation, that is, it does not wobble, the inserting operation can be performed smoothly.
Further, since the handle cannot be tilted unless both electrodes are properly fitted, there is an effect that it is possible to prevent both electrodes from being left in a semi-fitted state.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. <First Embodiment> FIGS. 1 to 8 show a first embodiment of the present invention. 1 and 2, reference numeral 1 is a casing made of synthetic resin, which is composed of a lower casing 2 and an upper casing 3. The lower casing 2 has a bottom and is formed in a substantially rectangular cylindrical shape with a flat surface, and the bottom surface 4 is formed so as to approach a substantially central depth portion, and a mounting flange 5 is formed on an outer peripheral surface of a lower end portion. Then, a screw is screwed into a mounting hole 6 provided at each of the four corners to be mounted on a vehicle body (not shown). One upper casing 3 is formed in a lid shape that is attached to the upper end portion of the lower casing 2, and screws 8 that are inserted into the insertion holes provided at the four corners of the upper surface of the upper casing 3 are attached to the upper end surface of the lower casing 2. By being screwed into the provided screw hole and tightened, it is detachably attached.

A pair of fixed electrodes 11a and 11b are erected on one side (front side in FIG. 5) of the lower casing 2 described above, and a fuse 12 is accommodated on the other side. As shown in FIG. 2, a pair of female screw bodies 13 are embedded in the bottom surface 4 of the lower casing 2 at predetermined intervals by insert molding in order to erect the fixed electrodes 11a and 11b. The fixed electrodes 11a and 11b are formed in a pin shape, and have a hexagonal portion 15 formed at the center in the length direction, and a male screw 16 cut at the lower end side. That is, each of the fixed electrodes 11a and 11b is
6 is screwed into the female screw body 13 to be erected.

As shown in FIG. 5, a terminal metal fitting 18 connected to one divided portion of the electric wire a is also fastened and fixed to one fixed electrode 11a (left side in FIG. 2).
The electric wire a is drawn out through an insertion hole 19 opened in the bottom surface 4. Further, a bus bar 20 connected to one end of the fuse 12 as described later is similarly fastened and fixed to the other fixed electrode 11b.

On the other side of the bottom surface 4 of the lower casing 2, the fuse 12 is housed as described above. Connecting pieces 23 and 24 are respectively provided on both ends of the fuse 12 in a protruding manner.
A terminal fitting 26 connected to the other divided portion of the electric wire a is fastened and fixed to one connecting piece 23 by a bolt 27. The electric wire a is drawn out through an insertion hole (not shown) similar to the above, which is opened in the bottom surface 4. In addition, a waterproof rubber plug 29 provided on the outer periphery of the electric wire a is fitted and sealed in both insertion holes 19. Further, one end of the bus bar 20 is fixed to the other connecting piece 24 of the fuse 12 by tightening with a bolt 27 in an orthogonal posture, and the other end is fixed electrode 11b as described above.
It is fastened and fixed together.

A movable electrode 31 can be inserted into and removed from the pair of fixed electrodes 11a and 11b. As shown in FIG. 2, the movable electrode 31 includes fixed electrodes 11a,
A structure in which a bridging portion 33 is inserted and connected between a pair of louver terminals 32a and 32b to each of which the tip of 11b can be fitted. As shown in FIG. 6, the movable electrode 31 is provided on the elongated mounting body 35 made of synthetic resin in a state where the louver terminals 32a and 32b are projected from the lower surface by insert molding.

On the other hand, the movable electrode 31 is provided directly above the fixed electrodes 11a and 11b on the ceiling surface of the upper casing 3.
A pair of insertion holes 36 are formed to allow the two louver terminals 32a, 32b to be inserted into the respective louver terminals 32a, 32b. That is, the louver terminals 32a and 32b of the movable electrode 31 are connected to the insertion hole 3
6 through the pair of fixed electrodes 11a, 1 in the casing 1
1b, so that both fixed electrodes 11a, 1a
A breaker switch 38 for disconnecting or connecting between 1b is configured. The fuse 12 described above is
In the middle of the above, the breaker switch 38 is connected in series and provided.

On the upper surface side of the mounting body 35 of the movable electrode 31,
A handle 40 for performing the insertion / removal operation is provided. The handle 40 is formed in a frame shape having an inverted trapezoidal outer shape. On the upper surface of the mounting body 35, a pair of bearing plates 41a and 41b, which are spaced apart from each other, are provided upright on both sides of the center in the lengthwise direction. The bearing plates 41a and 41b have bearing holes 42a and 41a. 42b is formed. Of these, the pair of bearing holes 42a on the left side of FIG. 2 are elongated holes, and the pair of bearing holes 42b on the right side are circular holes. The upper end side of the long hole-shaped bearing hole 42a is set to be aligned with the bearing hole 42b.

On the other hand, at the mounting edge of the handle 40,
Bearing portions 43a and 43b are provided so as to be inserted between the pair of left and right bearing plates 41a and 41b. Each of the bearing portions 43a and 43b is formed in a bifurcated shape having an insertion groove 44 into which a push-up pin 50 described later can be inserted, and bearing holes 45a and 45b are opened, respectively. The left bearing hole 45a is a long hole corresponding to the bearing hole 42a in the bearing plate 41a, and the right bearing hole 45b is a circular hole corresponding to the bearing hole 42b.

The left and right bearing portions 43 of the handle 40
a, 43b are inserted between the corresponding bearing plates 41a, 41b, the support shaft 46a extends over the left bearing hole 42a and the bearing hole 45a, and the right bearing hole 42b and the bearing hole 45b.
The support shafts 46b are inserted over the respective shafts so as to be rotatable relative to each other. The left support shaft 46a is the right support shaft 46a.
The support shaft 46a on the left side, which is formed longer than b,
Both ends thereof are mounted so as to project to the outside of the bearing plate 41a. Both projecting ends of the support shaft 46a on the left side and the mounting body 35
A tension coil spring 48 is mounted between the support shaft 46a and the upper surface of the support shaft 46a, and the supporting shaft 46a is urged to move downward in FIG. positioned. That is, the left and right support shafts 46 are always
The axes of a and 46b are offset from each other so that the handle 40 is held in a standing posture in which it cannot be tilted with respect to the mounting body 35.

On the other hand, on the upper surface of the upper casing 3, a pair of left and right push-up pins 50 which can be inserted into the left and right insertion grooves 44 of the handle 40 are provided upright. Also, the mounting body 3
5 and the bridging portion 33 of the movable electrode 31 are formed with through holes 51 that can penetrate the push-up pins 50 corresponding to the insertion grooves 44. The louver terminals 32a and 32b of the movable electrode 31 as well as the handle 40 are attached to the upper casing 3
When the push-up pin 50 is inserted into the insertion hole 36 of the
1 into the insertion groove 44 and pushes up the support shaft 46a against the elastic force of the tension coil spring 48, and the louver terminal 32
When the a and 32b are pushed into the corresponding fixed electrodes 11a and 11b until they are properly fitted, the support shaft 46a is pushed up to the coaxial position with the other support shaft 46b.

The portion of the ceiling surface of the upper casing 3 corresponding to the housing portion of the fuse 12 is shown in FIGS.
As shown in FIG. 3, a receiving base 53 is provided, and L-shaped receiving members 54 are mounted on the receiving base 53,
When the movable electrode 31 is properly inserted into the fixed electrodes 11a and 11b, and the handle 40 is tilted to the tilted posture shown in FIG. 4, the movable electrode 31 is received while fitting the substantially central portions of both side edges of the handle 40. .

Further, magnets 56 are fitted in symmetrical positions on the outer surfaces of both side edges of the handle 40. On the other hand, a reed switch 57 is attached to the ceiling surface of the upper casing 3. In the reed switch 57, the movable electrode 31 is properly inserted into the fixed electrodes 11a and 11b as described above, and the handle 40 is in the tilted position. If you are defeated by
It is provided so as to correspond to the position immediately before one of the magnets 56, and a detection signal can be transmitted when the magnet 56 comes immediately before. The reed switch 57 is connected to a control computer (not shown) via a connector 59 attached to the side surface of the upper casing 3 by a bracket 58.

The first embodiment has the structure as described above, and its operation will be described subsequently. In the casing 1, a pair of fixed electrodes 11a and 11b are erected and a fuse 12 is accommodated, and connected between the divided portions of the electric wire a in the manner described above. In order to bring the electric wire a into a conductive state, the handle 40 is raised in a standing posture and the movable electrode 31 is inserted. 2 and 7 when the handle 40 is raised.
As shown in FIG.
8 is pulled by the elasticity of the left and right support shafts 46a, 46b
The axis of is misaligned.

While holding the handle 40, the louver terminals 32a and 32b of the movable electrode 31 are inserted into the insertion holes 36 of the upper casing 3. At that time, the left and right support shafts 46 as described above.
Since the axes of a and 46b are deviated from each other, the handle 40 cannot be tilted with respect to the mounting body 35.
That is, the movable electrode 31 does not wobble, and the insertion work can be performed smoothly.

With the above insertion, the louver terminals 32a,
When 32b starts to be fitted to the corresponding fixed electrodes 11a and 11b, the handle 40 may fall due to the fitting resistance. On the other hand, during the inserting operation, the push-up pin 50 erected on the upper casing 3 is inserted into the insertion groove 44 of the handle 40 through the through hole 51, and the left support shaft 46a is guided along the bearing holes 42a and 45a. Although the support shafts 46a and 46b on the left and right sides are still deviated from each other in axial direction, the handle 40 cannot be tilted. Therefore, the handle 40 is pushed straight up while standing, and the louver terminals 32a and 32b are fixed to the fixed electrodes 11a and 1a.
Fits smoothly on 1b. As a result, the breaker switch 38 is turned on, and the electric wire a is conducted through the fuse 12 to be in use.

Here, both louver terminals 32 of the movable electrode 31.
When the a and 32b are properly fitted to the corresponding fixed electrodes 11a and 11b, as shown in FIGS. 3 and 8, the left support shaft 46a reaches the upper ends of the bearing holes 42a and 45a, and the right support is provided. The handle 40, which is coaxial with the shaft 46b and standing upright, can be tilted as shown in FIG. 4 while swinging around the support shafts 46a and 46b.

On the other hand, the louver terminal 32a of the movable electrode 31,
32b and the fixed electrodes 11a and 11b are not properly fitted in a semi-fitted state, the left side support shaft 46a has the bearing hole 4
Even if the handle 40 is tilted, it cannot be done because the axis line is deviated from the support shaft 46b on the right side in the middle of 2a and 45a. This makes it possible to detect the half-fitted state, in which case the handle 40 may be pushed again to the normal position.

Since the pair of push-up pins 50 are provided symmetrically to each other, the same operation as described above can be expected even when the handle 40 is inserted in the left-right inverted posture. Also, after the movable electrode 31 is properly fitted to the fixed electrodes 11a and 11b as described above, the handle 4
When 0 is tilted to the tilted position, one of the magnets 56 provided on the handle 40 corresponds to the position immediately before the reed switch 57, and the reed switch 57 sends a detection signal and the breaker switch 38 is properly turned on electrically. To be detected.

When the breaker switch 38 is turned off for maintenance or the like, the handle 40 is raised to the standing position from the tilted position shown by the solid line in FIG. , 11b, the breaker switch 3
8 is cut and the electric wire a becomes non-conductive. Also fuse 1
When 2 is cut, the breaker switch 38 is turned off by pulling out the movable electrode 31 in the same manner as described above, and then,
Loosen the screw 8 and remove the upper casing 3. Then, since the fuse 12 is exposed, the fuse 12 may be removed and replaced with a new one while loosening the bolt 27. Here, since the breaker switch 38 has already been turned off, the replacement operation can be performed safely. The push-up pin 50 and the through hole 51 may have a circular cross section.

As described above, according to the breaker device of the present embodiment, the structure in which the conducting path is housed in the casing 1 is excellent in safety, and the handle 40 can be tilted in use. , Especially short and compact. In addition, the movable electrode 31 is inserted into the insertion hole 36.
Since the handle 40 is held in an upright posture without wobbling when it is inserted into, it is not necessary to hold the movable electrode 31 with a hand, and the insertion can be performed easily and smoothly. Further, even in the middle of the inserting operation, the handle 40 is held in the upright posture without falling down despite receiving the fitting resistance, so that the inserting operation can be continuously performed smoothly. In addition, the movable electrode 31 and the fixed electrode 1
Handle 40 unless 1a and 11b are properly fitted
Since it cannot be tilted, it is prevented from being left in a half-fitted state.

<Second Embodiment> FIGS. 9 to 12 show a second embodiment of the present invention. In the second embodiment, the structure of the portion that supports the handle 40 by switching it between the state in which the handle 40 can be tilted and the state in which the handle 40 can be tilted is changed. As shown in FIG.
Bearing portions 61 provided with bearing holes 62 are provided at both end portions in the length direction of the upper surface of No. 5, and the bearing portion 61 is sandwiched at the end of the handle 40 on the mounting side. A pair of bearing portions 63 having a bifurcated shape and provided with bearing holes 64 are provided in a protruding manner. Then, the corresponding bearing portion 61 of the mounting body 35 is inserted between the forked bearing portions 63 of the handle 40, and the support shaft 65 is inserted over the bearing holes 62 and 64 of both bearing portions 61 and 63, thereby 40 is supported on the upper surface side of the mounting body 35 so as to freely swing around a support shaft 65.

A pair of slide bars 67 are attached to both ends of the mounting edge of the handle 40. The sliding rod 67 has a pin 6 protruding outward at an intermediate position in the longitudinal direction.
8 is set up. A pair of slide holes 70 are formed on the handle 40 side, and as shown in FIG. 11, a long hole 71 is formed so as to open from the slide hole 70 to the outer surface. That is, the sliding rod 67 has the pin 68 in the long hole 7.
The slide coil 70 is slidably fitted in the slide hole 70 while moving along the line 1, and a compression coil spring 73 is attached to the rear end of the slide hole 70.

On the upper surface of the mounting body 35, the above sliding rod 67 is provided.
An insertion hole 75 for inserting the tip of is formed. Further, guide plates 76 are provided on both ends of the upper surface of the mounting body 35, respectively.
Is set up, and the sliding bar 6 is attached to the inner surface of each guide plate 76.
A guide groove 77 into which the tip of the pin 68 protruding from the elongated hole 71 of 7 is fitted is formed. This guide groove 77 is shown in FIG.
As shown in FIG. 1, a semicircular curved line portion 79 centering on the support shaft 65 is symmetrically formed from the upper end of the vertical straight line portion 78.

On the other hand, on the upper surface of the upper casing 3, a pair of push-up pins 8 which can be inserted into the above-mentioned insertion holes 75 from the lower surface side.
1 is erected. That is, the two sliding rods 67 on the handle 40 side are always driven by the elastic force of the compression coil spring 73.
As the downward sliding force in FIG. 9 is urged and the pin 68 abuts against the lower end of the linear portion 78 of the guide groove 77, movement is restricted, and the lower end of the sliding rod 67 is projected into the insertion hole 75. Has become. As a result, the handle 40 is attached to the mounting body 35.
Supported against being unable to tilt. And the handle 40
When both louver terminals 32a and 32b of the movable electrode 31 are inserted into the insertion holes 36 of the upper casing 3, the push-up pins 81 enter the insertion holes 75 and the sliding rod 67 resists the elasticity of the compression coil spring 73. Louver terminals 32a, 3
When the pins 2b are pushed into the corresponding fixed electrodes 11a and 11b until they are properly fitted, the pins 68 reach the upper ends of the straight portions 78 of the guide grooves 77 while the lower ends of the sliding rods 67 are removed from the insertion holes 75. Has become. Other structures are the same as those of the first embodiment, and the same portions are denoted by the same reference numerals, and duplicate description will be omitted.

The operation of this second embodiment is as follows. In the state in which the handle 40 is raised, as shown in FIGS. 9 and 11, both sliding rods 67 move the compression coil spring 73.
The tip of the pin 68 is deeply inserted into the insertion hole 75 while the pin 68 is stopped at the lower end of the straight portion 78 in the guide groove 77, and the handle 40 is tilted with respect to the mounting body 35. It is imperatively supported. for that reason,
When inserting the louver terminals 32a and 32b of the movable electrode 31 projecting from the mounting body 35 with the handle 40 into the insertion hole 36 of the upper casing 3, the mounting body 35, that is, the movable electrode 31 does not wobble, and the insertion work is smooth. You can do it.

With the above insertion, the louver terminals 32a,
When the 32b starts to be fitted to the corresponding fixed electrodes 11a and 11b, the handle 40 may fall due to the fitting resistance as in the first embodiment. During this insertion operation, the push-up pin 81 provided upright on the upper casing 3 enters the insertion hole 75 from below and pushes up the sliding rod 67 against the elasticity of the compression coil spring 73. However, since the tip of the sliding rod 67 still remains in the insertion hole 75, and the pin 68 is also located in the straight portion 78 of the guide groove 77, the handle 40 is still in a state where it cannot be tilted.
Therefore, the handle 40 is pushed straight up while standing, and the louver terminals 32a and 32b are fixed to the fixed electrodes 11a and 11b.
It fits smoothly into b.

Both louver terminals 32a, 32 of the movable electrode 31
When b is properly fitted to the corresponding fixed electrodes 11a and 11b, as shown in FIGS. 10 and 12, the lower end of the sliding rod 67 is pulled out upward from the insertion hole 75 and the pin 6 is released.
8 reaches the upper end of the straight portion 78 of the guide groove 77, that is, the entrance of the curved portion 79. Then, the handle 68 can be tilted around the support shaft 65 while the pin 68 relatively wraps around the curved portion 79.

Further, the louver terminal 32a of the movable electrode 31,
In the semi-fitted state where the fixed electrodes 11a and 11b are not fitted properly, the pin 68 is still fitted in the straight portion 78 of the guide groove 77, so that the handle 40 cannot be tilted. This makes it possible to detect the half-fitted state, in which case the handle 40 may be pushed again to the normal position.

The same advantages as those of the first embodiment can be obtained in the second embodiment. Repeatedly, the conduction path is housed in the casing 1, so that the safety is excellent, and the handle 40 can be tilted in the use state, so that it is particularly short and compact. Further, the handle 40 does not wobble when the movable electrode 31 is inserted into the insertion hole 36, and further, the handle 40 does not fall down when fitting the fixed electrode 11a, 11b, which allows a smooth work. The half-fitted state can also be detected.

<Other Embodiments> The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) In the second embodiment, the sliding rod may be provided on the mounting body side and the guide groove may be provided on the handle side. (2) Further, the present invention is not limited to those in which fuses are arranged in parallel, but can be similarly applied to a single breaker switch.

[Brief description of drawings]

FIG. 1 is a plan view of a state in which a handle according to a first embodiment of the present invention is tilted.

FIG. 2 is a sectional view showing a state before a handle is inserted.

FIG. 3 is a cross-sectional view showing a state in which the handle is completely inserted.

FIG. 4 is a side view for explaining a handle inserting / removing operation.

FIG. 5 is a perspective view showing the internal structure of the casing and the structure on the side of the attachment body.

FIG. 6 is a perspective view of a mounting body.

FIG. 7 is a partial side view of the state before inserting the handle.

FIG. 8 is a partial side view of the state where the insertion of the handle is completed.

FIG. 9 is a sectional view of the handle according to the second embodiment of the present invention before being inserted.

FIG. 10 is a cross-sectional view showing a state where the insertion is completed.

FIG. 11 is a partial side view of the state before inserting the handle.

FIG. 12 is a partial side view of the state where the insertion of the handle is completed.

[Explanation of symbols]

 a ... electric wire 1 ... casing 2 ... lower casing 3 ... upper casing 11a, 11b ... fixed electrode 31 ... movable electrode 32a, 32b ... louver terminal 35 ... mounting body 40 ... handle 42a ... (oblong hole) bearing hole 45a ... ( Bearing holes 46a, 46b ... Support shaft 48 ... Tensile coil spring 50 ... Push-up pin 65 ... Support shaft 67 ... Sliding rod 68 ... Pin 70 ... Sliding hole 73 ... Compression coil spring 77 ... Guide groove 78 ... Straight part 79 ... Curved part 81 ... Push-up pin

Claims (3)

[Claims] 1. A pair of fixed electrodes provided in a casing, a movable electrode that is inserted into and removed from the fixed electrodes to cut or connect between the fixed electrodes, and an insertion / removal unit that is tiltable with respect to the movable electrodes. The handle for operation is provided between the handle and the movable electrode, and is movable between a tilt-preventing position that locks the handle untiltably and a tilt-allowing position that allows tilting of the handle. A movable member, an urging member that constantly urges the movable member to the tilting prevention position, and a movable electrode that is provided in the casing so as to be engageable with the movable member when the movable electrode is inserted. A breaker device, comprising: an operating member that moves the moving member to the tilting allowable position when the moving member is properly fitted to the electrode. 2. The handle is supported so as to be tiltable with respect to the movable electrode by two shafts that can be aligned on the same axis line, and one of the shafts is at a separated position separated from the axis line of the other shaft. The device is movably installed between an alignment position aligned with the axis and is always urged to move to the separated position by an urging member. 2. An actuating member is provided which engages with the shaft of claim 1 to move one of the shafts to the alignment position when the movable electrode is properly fitted to the fixed electrode. Breaker device. 3. A slider and a guide groove for guiding only relative sliding of the slider are provided between the handle and the movable electrode, and the guide groove includes the slider. Is provided with a tilt permitting portion that allows the relative displacement of the handle, and the slider is always urged to move to a position separated from the tilt permitting portion by a biasing member. On the other hand, the casing engages with the slider as the movable electrode is inserted, and when the movable electrode is properly fitted to the fixed electrode, the slider is provided in the tilt permitting portion of the guide groove. The breaker device according to claim 1, further comprising an actuating member for moving the breaker to the position.