WO2016199303A1 - 電力開閉装置の操作装置 - Google Patents
電力開閉装置の操作装置 Download PDFInfo
- Publication number
- WO2016199303A1 WO2016199303A1 PCT/JP2015/067079 JP2015067079W WO2016199303A1 WO 2016199303 A1 WO2016199303 A1 WO 2016199303A1 JP 2015067079 W JP2015067079 W JP 2015067079W WO 2016199303 A1 WO2016199303 A1 WO 2016199303A1
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- WIPO (PCT)
- Prior art keywords
- cam
- plate
- closing
- output lever
- pin
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/04—Levers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/01—Spiral spring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
Definitions
- the present invention relates to an operation device for a power switchgear.
- the operation device of the power switchgear described in Patent Document 1 stores the torsion bar, and opens and closes the contact of the power switchgear by releasing the energy of the stored torsion bar.
- the energy of the closed torsion bar rotates the closed main shaft with one end of the closed torsion bar fixed. Obtained by twisting.
- a closing lever is fixed to the closing spindle, and a large gear is connected to the closing lever via a link. Further, the large gear is fixed to the cam shaft to which the cam is fixed. Therefore, the stored closing torsion bar tries to rotate the cam via the closing main shaft, the closing lever, the link, the large gear, and the cam shaft, but until the cam starts the closing operation. Is held by a closing latch mechanism.
- the cam is provided with a pivotable pin, and the pin is engaged with the closing latch to restrict the turning of the cam, and the state where the energy is held in the closing torsion bar is maintained.
- the operating device releases the engagement between the pin provided on the cam and the closing latch, releases the energy of the closing torsion bar, and drives the movable contact of the power switching device in the closing direction.
- the pin is supported by the cam in a so-called cantilever structure in which only one end is inserted into the cam. Therefore, when the pin is engaged with the closing latch, The bending moment is applied by the reaction force from the closing latch. When a bending moment acts on the pin, the pin tilts, a thrust load is generated on the pin, sliding friction increases at the contact portion between one end of the pin and the cam, and the closing latch is engaged with the pin during closing operation. May be hindered, and the reliability of the closing operation is reduced.
- the present invention has been made in view of the above, and an object of the present invention is to provide an operating device for a power switchgear that can improve the reliability of the closing operation.
- an operation device for a power switch includes an output lever fixed to a main shaft and connected to a movable contact of the power switch, and the power switch
- An opening spring that releases the stored energy during the opening of the circuit and rotates the output lever in the first direction to drive the movable contact in the opening direction, and the stored energy of the opening spring is maintained.
- the open-circuit latch that can be engaged with the output lever and the camshaft are fixed to the camshaft, and rotate when the power switch is closed to abut against the output lever so that the output lever is in a direction opposite to the first direction.
- a cam that rotates in the second direction and drives the movable contact in the closing direction, a closing spring that releases the stored force during rotation and rotates the cam, and a closing spring.
- Engageable with the cam so that the stored energy is maintained A first latch that is fixed to the camshaft and is capable of contacting the output lever; and a first plate-like portion parallel to the first plate-like portion; A second plate-like portion disposed between the first plate-like portion and the first plate-like portion so as to be spaced from the first plate-like portion in the direction of the camshaft at an interval where the closing latch can be inserted;
- a pin penetrating the first and second plate-like portions in the direction of the camshaft, both ends of which are rotatably supported by the first and second plate-like portions, and engageable with the closing latch; And a connecting portion that connects the first plate-like portion and the second plate-like portion.
- FIG. 1 is a front view showing the configuration of the operating device of the power switching device according to the present embodiment.
- FIG. 1 shows the configuration of the operating device when the power switching device is in a closed state.
- the power switchgear is a switchgear that is provided in a power system and cuts off a fault current or load current or inputs a system voltage.
- the power switch is a gas circuit breaker, for example.
- the output lever 9 is fixed to the main shaft 22.
- the main shaft 22 is rotatably supported by the housing 20.
- One end of a torsion bar 21 is fixed to the main shaft 22.
- the torsion bar 21 is an example of a circuit opening spring. By the torsion bar 21, a rotational force is applied to the main shaft 22 in the counterclockwise direction which is the first direction.
- the output lever 9 is connected to the movable contact 25a of the power switching device via a link mechanism (not shown).
- the movable contact 25a contacts or separates from the fixed contact 25b.
- the output lever 9 is connected to the shock absorber 26.
- the shock absorber 26 mitigates the impact generated when opening and closing.
- the output lever 9 is provided with a pin 24 that is a latch pin for opening the circuit.
- the output lever 9 has a roller 23, and the roller 23 is rotatably supported by the output lever 9.
- An opening latch 27 is pivotally supported on the housing 20 so as to be rotatable.
- the opening latch 27 is engaged with the pin 24.
- the stored force of the torsion bar 21 attempts to turn the output lever 9 counterclockwise, but the open circuit latch 27 prevents the output lever 9 from turning counterclockwise. Engage with.
- the opening latch 27 is provided with a pin 29.
- An opening trigger 28 is pivotally supported on the housing 20 so as to be rotatable.
- the opening trigger 28 engages with the pin 29 of the opening latch 27 and prevents the opening latch 27 from rotating counterclockwise.
- the opening electromagnet 40 has a plunger 41 that can reciprocate. When the open circuit signal is input, the open circuit electromagnet 40 drives the plunger 41 in the right direction in the drawing to press the open circuit trigger 28, and causes the open circuit trigger 28 to be in a direction opposite to the first direction. The engagement of the opening trigger 28 and the pin 29 is released by rotating in the clockwise direction.
- the closing lever 8 is fixed to the closing spindle 31.
- the closing main shaft 31 is rotatably supported by the housing 20.
- One end of the torsion bar 30 is fixed to the closing main shaft 31.
- the torsion bar 30 is an example of a closing spring.
- the torsion bar 30 applies a rotational force to the closing main shaft 31 in the clockwise direction.
- the link 6 is rotatably connected to one end of the closing lever 8.
- the other end of the link 6 is rotatably connected to the large gear 4. That is, the closing lever 8 is connected to the large gear 4 via the link 6.
- the large gear 4 is fixed to the cam shaft 10, and the cam 2 is fixed to the cam shaft 10.
- the cam shaft 10 is rotatably supported by the housing 20.
- the cam 2 rotates integrally with the large gear 4 via the cam shaft 10.
- a small gear 5 that meshes with the large gear 4 is pivotally supported by the housing 20.
- the large gear 4 lacks some teeth so that the meshing with the small gear 5 is released when the torsion bar 30 is stored.
- the small gear 5 can be driven counterclockwise by a motor (not shown).
- the cam 2 is provided with a pin 1 which is a latch pin for closing.
- a closing latch 3 is pivotally supported on the housing 20 so as to be rotatable.
- the closing latch 3 is engaged with the pin 1.
- the energy stored in the torsion bar 30 attempts to rotate the cam 2 clockwise, but the closing latch 3 engages with the pin 1 to prevent the cam 2 from rotating clockwise. ing.
- the closing latch 3 is provided with a pin 33.
- the cam 2 When the power switch is closed, the cam 2 is rotated clockwise by releasing the engagement between the closing latch 3 and the pin 1, and abuts against the roller 23 to rotate the output lever 9 clockwise.
- the movable contactor 25a is driven in the closing direction.
- the closed direction is a direction toward the fixed contact 25b.
- the cam 2 stores the torsion bar 21 by rotating the output lever 9 clockwise.
- a closing trigger 7 is rotatably supported on the housing 20.
- the closing trigger 7 is engaged with the pin 33 of the closing latch 3 to prevent the closing latch 3 from rotating counterclockwise.
- the closing electromagnet 45 has a plunger 43 that can reciprocate.
- the closing electromagnet 45 drives the plunger 43 in the right direction in the drawing to press the closing trigger 7 and rotates the closing trigger 7 clockwise to close the closing trigger 7. The engagement with the pin 33 is released.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1
- FIG. 3 is a cross-sectional view taken along the line BB in FIG.
- the cam 2 includes a pair of cam elements 2a and 2b facing each other, a pin 1 whose both ends are rotatably supported by the cam elements 2a and 2b, and a bolt 42 for fastening the cam elements 2a and 2b together.
- the cam elements 2a and 2b are plate-shaped.
- the cam elements 2 a and 2 b are fixed to the cam shaft 10.
- the cam elements 2 a and 2 b are arranged so as to be parallel to each other and to be perpendicular to the direction of the cam shaft 10. Further, the cam elements 2 a and 2 b are arranged apart from each other in the direction of the cam shaft 10.
- the interval between the cam elements 2a and 2b is an interval at which the closing latch 3 can be inserted between the cam elements 2a and 2b.
- the cam elements 2a and 2b have the same shape and the same size.
- the cam element 2a is a first plate-like portion
- the cam element 2b is a second plate-like portion.
- the cam element 2a is a separate body from the cam element 2b.
- the cam element 2a is provided with a counterbore 40a, and one end of the pin 1 passes through the cam element 2a so as to protrude into the counterbore 40a.
- a counterbore 40b is provided in the cam element 2b, and the other end of the pin 1 passes through the cam element 2b so as to protrude into the counterbore 40b.
- a groove is cut at one end of the pin 1, and a C-shaped retaining ring 41a is fitted into this groove.
- a groove is cut in the other end of the pin 1, and a C-shaped retaining ring 41b is fitted in this groove.
- the retaining rings 41a and 41b prevent the pin 1 from moving in the axial direction and falling off the cam elements 2a and 2b.
- the bolt 42 is, for example, a socket bolt. In the illustrated example, a plurality of bolts 42 are provided. The bolts 42 distribute the stress acting on the cam 2 and maintain a constant spacing between the cam elements 2a and 2b. The bolt 42 is a connecting portion that connects the cam elements 2a and 2b.
- the cam 2 has two plate-like cam elements 2a and 2b, and both ends of the pin 1 are rotatably supported by the cam elements 2a and 2b. That is, the pin 1 is supported by the cam elements 2a and 2b in a double-sided structure.
- a part of the closing latch 3 is inserted between the cam elements 2a and 2b, and the closing latch 3 and the pin 1 are engaged with each other, whereby the rotation of the cam 2 is restricted and the energy of the torsion bar 30 is stored. Power is retained.
- the closing latch 3 and the closing trigger 7 are also connected to the cam shaft 10 in the housing 20. Arranged at the center of the direction, the arrangement is more balanced in the direction of the camshaft 10 than in the prior art.
- cam elements 2a and 2b can both contact the roller 23 to rotate the output lever 9.
- the “cam element” is a portion of the cam 2 that contacts the roller 23 that is rotatably attached to the output lever 9.
- the outline of the opening operation is as follows.
- a counterclockwise rotational force is applied to the output lever 9 by the torsion bar 21, but counterclockwise rotation is restricted by the opening latch 27 and the opening trigger 28.
- Yes In this state, when an opening signal is input to the opening electromagnet 40 and the opening electromagnet 40 is excited, the plunger 41 operates in the right direction in the figure, and the opening trigger 28 pressed by the plunger 41 moves clockwise. And the engagement between the opening trigger 28 and the pin 29 is released.
- the opening latch 27 is rotated counterclockwise by the reaction force from the pin 24, the engagement between the opening latch 27 and the pin 24 is released, and the output lever 9 is rotated counterclockwise.
- the open circuit direction is a direction in which the movable contact 25a is separated from the fixed contact 25b.
- the outline of the closing operation is as follows.
- the cam 2 is applied with a clockwise rotational force by the torsion bar 30 through the cam shaft 10, the large gear 4, the link 6, the closing lever 8 and the closing main shaft 31.
- Rotation in the clockwise direction is restricted by the closing latch 3 and the closing trigger 7.
- the closing latch 3 is engaged with the pin 1.
- the plunger 43 operates in the right direction in the figure, and the closing trigger 7 pushed by the plunger 43 is clockwise. And the engagement between the closing trigger 7 and the pin 33 is released.
- the closing latch 3 is rotated counterclockwise by the reaction force from the pin 1, the engagement between the closing latch 3 and the pin 1 is released, and the cam 2 is rotated clockwise.
- the pin 1 is supported by the cam elements 2a and 2b in a double-supported structure, the inclination of the pin 1 is suppressed and the generation of thrust load is suppressed compared to the case of the cantilever structure.
- the sliding friction at the contact portion between 1 and the cam 2 is suppressed, and the engagement between the closing latch 3 and the pin 1 becomes easy.
- the cam elements 2 a and 2 b come into contact with the roller 23 and the cam 2 pushes up the roller 23, so that the output lever 9 rotates clockwise while twisting the torsion bar 21.
- the movable contact 25a is driven in the closing direction to be in a closed state.
- the torsion bar 30 is in a released state immediately after the closing, but by rotating the small gear 5 counterclockwise by the motor described above, the large gear 4 is rotated clockwise, and the link 6, the closing circuit
- the torsion bar 30 is stored via the lever 8 and the closing main shaft 31, and the closing latch 3 and the pin 1 are engaged to return to the closing state shown in FIG.
- the output lever 9 fixed to the main shaft 22 and connected to the movable contact 25a of the power switchgear and the stored energy is released when the power switchgear is opened.
- the pin 1 is supported by the cam 2 in a doubly supported structure, the inclination of the pin 1 is suppressed in a state where the pin 1 is engaged with the closing latch 3, and the thrust load is increased. Therefore, the sliding friction at the contact portion between the both ends of the pin 1 inserted into the cam 2 and the cam 2 is suppressed, and the release of the engagement between the closing latch 3 and the pin 1 is facilitated. Thus, stable disengagement is realized, and the reliability of the closing operation is improved.
- the torsion bar 21 is used as the opening spring and the torsion bar 30 is used as the closing spring.
- the present invention is not limited to this.
- a coil spring may be used.
- the counterbore holes 40a and 40b are provided in the cam elements 2a and 2b, respectively, but the pin 1 may be passed through the cam elements 2a and 2b without providing the counterbore holes 40a and 40b.
- the pin 1 is rotatably supported by the cam 2, but a bearing (not shown) is provided between one end of the pin 1 and the cam element 2 a and between the other end of the pin 1 and the cam element 2 b. By providing, rotation of the pin 1 becomes smoother.
- FIG. 4 is a front view showing the configuration of the operating device of the power switchgear according to the present embodiment
- FIG. 5 is a sectional view taken along the line CC in FIG. 4
- FIG. 6 is a view taken along the line DD in FIG. It is sectional drawing. 4 and 5, the same components as those shown in FIGS. 1 and 2 are denoted by the same reference numerals.
- the configuration of the cam 2 is different in the first embodiment compared to the first embodiment. Specifically, it is as follows.
- the cam 2 is a plate that is arranged in parallel with the cam element 2a and spaced apart from the cam element 2a in the direction of the cam shaft 10 at an interval in which the closing latch 3 can be inserted between the cam element 2a and the cam element 2a. And a pin 1 whose both ends are rotatably supported by the cam element 2 a and the plate-like part 12, and a bolt 42 for fastening the cam element 2 a and the plate-like part 12.
- the cam element 2a has a plate shape.
- the plate-like portion 12 is arranged so as to be smaller than the cam element 2a and fit within the region of the cam element 2a in plan view.
- the plate-like portion 12 is, for example, circular in plan view.
- the plan view is a plan view when viewed from the direction of the cam shaft 10.
- the plate-like portion 12 is a separate body from the cam element 2a.
- the cam element 2 a is fixed to the cam shaft 10, but the plate-like portion 12 is not fixed to the cam shaft 10.
- the cam element 2 a and the plate-like portion 12 are arranged so as to be parallel to each other and perpendicular to the direction of the cam shaft 10.
- the cam element 2 a and the plate-like portion 12 are arranged apart from each other in the direction of the cam shaft 10.
- the interval between the cam element 2 a and the plate-like portion 12 is an interval at which the closing latch 3 can be inserted between the cam element 2 a and the plate-like portion 12.
- the cam element 2a is a first plate-like portion
- the plate-like portion 12 is a second plate-like portion.
- the one end portion of the pin 1 passes through the plate-like portion 12, and the other end portion of the pin 1 passes through the cam element 2a. Further, a groove is cut at one end of the pin 1, and a C-shaped retaining ring 41a is fitted into this groove. Similarly, a groove is cut in the other end of the pin 1, and a C-shaped retaining ring 41b is fitted in this groove. The retaining rings 41 a and 41 b prevent the pin 1 from moving in the axial direction and falling off the cam element 2 a and the plate-like portion 12.
- the bolt 42 is, for example, a socket bolt.
- the bolt 42 penetrates the plate-like portion 12 and is screwed into the screw because it is provided on the cam element 12a.
- a plurality of bolts 42 are provided.
- the bolt 42 keeps the distance between the cam element 2a and the plate-like portion 12 constant.
- the bolt 42 is a connecting portion that connects between the cam element 2 a and the plate-like portion 12.
- the cam 2 is provided with a female thread on the same cam element 2a as in the prior art, the plate-like portion 12 is fastened to the cam element 2a with the bolt 42, and both ends of the pin 1 are connected to the cam element 2a and the plate-like portion 12. It is a structure supported by.
- the cam 2 is arranged in the center of the housing 20 in the direction of the cam shaft 10, but the closing latch 3 is sandwiched between the cams 2 as in the first embodiment. Therefore, the arrangement of the closing latch 3 and the closing trigger 7 in the direction of the cam shaft 10 can be made the same as the conventional arrangement, and there is no need to change the design.
- the pin 1 is combined with the cam element 2a and the pin 1 has a double-supported structure. Therefore, there are few design changes from the conventional structure and the structure is simple, but the same effects as in the first embodiment. In other words, it is easy to release the engagement between the closing latch 3 and the pin 1, and stable releasing of the engagement is realized, and the reliability of the closing operation is improved.
- the output lever 9 can be rotated by contacting the roller 23.
- the cam 2 is only the cam element 2a.
- FIG. 7 is a cross-sectional view showing a configuration of the cam 2 in a modified example of the present embodiment, and corresponds to FIG.
- the cam 2 is configured by integrally forming a cam element 2 a and a plate-like portion 12 by a columnar connecting portion 13. Therefore, it is not necessary to connect the cam element 2a and the plate-like portion 12 with the bolts 42.
- the cam element 2a, the plate-like portion 12, and the connecting portion 13 are integrally formed, so that the number of parts is reduced.
- the other effects of this modification are the same as those of the cam 2 shown in FIG.
- the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
図1は、本実施の形態に係る電力開閉装置の操作装置の構成を示す正面図である。図1では、電力開閉装置が閉路状態にある場合の操作装置の構成を示している。電力開閉装置は、電力系統に設けられ、故障電流もしくは負荷電流を遮断し、または系統電圧を投入する開閉装置である。電力開閉装置は例えばガス遮断器である。
図4は、本実施の形態に係る電力開閉装置の操作装置の構成を示す正面図、図5は、図4におけるC-C矢視断面図、図6は、図4におけるD-D矢視断面図である。なお、図4および図5では、図1および図2に示す構成要素と同一の構成要素には同一の符号を付している。
Claims (5)
- 主軸に固定され、電力開閉装置の可動接触子に連結された出力レバーと、
前記電力開閉装置の開路時に蓄勢力を放勢して前記出力レバーを第1の方向に回動させ前記可動接触子を開路方向に駆動させる開路用ばねと、
前記開路用ばねの蓄勢力が保持されるように前記出力レバーと係合可能な開路用ラッチと、
カム軸に固定され、前記電力開閉装置の閉路時に回動して前記出力レバーと当接し前記出力レバーを前記第1の方向と逆方向である第2の方向に回動させ前記可動接触子を閉路方向に駆動させるカムと、
前記閉路時には蓄勢力を放勢して前記カムを回動させる閉路用ばねと、
前記閉路用ばねの蓄勢力が保持されるように前記カムと係合可能な閉路用ラッチと、
を備え、
前記カムは、
前記カム軸に固定され、前記出力レバーと当接可能なカム要素である第1の板状部と、
前記第1の板状部と平行にかつ前記第1の板状部との間に前記閉路用ラッチが挿入可能な間隔で前記第1の板状部から前記カム軸の方向に離間して配置された第2の板状部と、
前記第1および第2の板状部を前記カム軸の方向に貫通し、前記第1および第2の板状部により両端部が回動自在に支持され、前記閉路用ラッチと係合可能なピンと、
前記第1の板状部と前記第2の板状部とを連結する連結部と、を有する
ことを特徴とする電力開閉装置の操作装置。 - 前記第2の板状部は、前記カム軸に固定され、
前記第1および第2の板状部は、互いに同じ形状でかつ同じ大きさであり、
前記第2の板状部は、前記出力レバーと当接可能な前記第1の板状部とは別のカム要素であることを特徴とする請求項1に記載の電力開閉装置の操作装置。 - 前記第2の板状部は、平面視で前記第1の板状部よりも小さくかつ前記第1の板状部の領域内に収まるように配置されることを特徴とする請求項1に記載の電力開閉装置の操作装置。
- 前記連結部は、ボルトであることを特徴とする請求項2または3に記載の電力開閉装置の操作装置。
- 前記第1の板状部と前記第2の板状部と前記連結部とが一体に形成されていることを特徴とする請求項3に記載の電力開閉装置の操作装置。
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JP2015553975A JP5916973B1 (ja) | 2015-06-12 | 2015-06-12 | 電力開閉装置の操作装置 |
US15/735,003 US10276315B2 (en) | 2015-06-12 | 2015-06-12 | Operating device for power switchgear |
PCT/JP2015/067079 WO2016199303A1 (ja) | 2015-06-12 | 2015-06-12 | 電力開閉装置の操作装置 |
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PCT/JP2015/067079 WO2016199303A1 (ja) | 2015-06-12 | 2015-06-12 | 電力開閉装置の操作装置 |
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CN113839329B (zh) * | 2021-10-25 | 2023-04-28 | 国网河南省电力公司宜阳县供电公司 | 一种高压隔离开关动触头拆装夹具 |
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JPH0528882A (ja) * | 1991-07-18 | 1993-02-05 | Mitsubishi Electric Corp | 開閉機器用操作装置 |
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CN1329347A (zh) * | 2000-06-14 | 2002-01-02 | 三菱电机株式会社 | 开闭器的操作装置 |
JP3853619B2 (ja) * | 2001-08-20 | 2006-12-06 | 三菱電機株式会社 | 開閉機器の操作装置 |
JP4881251B2 (ja) * | 2007-07-27 | 2012-02-22 | 株式会社東芝 | 開閉装置および開閉装置操作機構 |
JP5213696B2 (ja) * | 2008-12-26 | 2013-06-19 | 三菱電機株式会社 | 操作装置 |
-
2015
- 2015-06-12 WO PCT/JP2015/067079 patent/WO2016199303A1/ja active Application Filing
- 2015-06-12 JP JP2015553975A patent/JP5916973B1/ja active Active
- 2015-06-12 US US15/735,003 patent/US10276315B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH048237U (ja) * | 1990-04-28 | 1992-01-24 | ||
JPH0528882A (ja) * | 1991-07-18 | 1993-02-05 | Mitsubishi Electric Corp | 開閉機器用操作装置 |
Also Published As
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US20180166226A1 (en) | 2018-06-14 |
JPWO2016199303A1 (ja) | 2017-06-22 |
JP5916973B1 (ja) | 2016-05-11 |
US10276315B2 (en) | 2019-04-30 |
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