WO2022201529A1 - Appareil du type ascenseur - Google Patents

Appareil du type ascenseur Download PDF

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Publication number
WO2022201529A1
WO2022201529A1 PCT/JP2021/013024 JP2021013024W WO2022201529A1 WO 2022201529 A1 WO2022201529 A1 WO 2022201529A1 JP 2021013024 W JP2021013024 W JP 2021013024W WO 2022201529 A1 WO2022201529 A1 WO 2022201529A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
electric actuator
ventilation hole
car
elevator
Prior art date
Application number
PCT/JP2021/013024
Other languages
English (en)
Japanese (ja)
Inventor
政和 谷
康司 伊藤
洋輔 久保
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2021/013024 priority Critical patent/WO2022201529A1/fr
Publication of WO2022201529A1 publication Critical patent/WO2022201529A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical

Definitions

  • the present invention relates to an elevator apparatus equipped with an electrically operated safety device.
  • the elevator system is equipped with a governor and an emergency stop device to constantly monitor the ascending and descending speed of the car and to emergency stop the car that has fallen into a predetermined overspeed condition.
  • the car and the governor are connected by a governor rope, and when an overspeed condition is detected, the governor restrains the governor rope and activates the emergency stop device on the car side to bring the car to an emergency stop.
  • Patent Document 1 The technology described in Patent Document 1 is known as a conventional technology related to a safety device that does not use a governor rope.
  • a drive shaft that drives the safety device and an operating mechanism that operates the drive shaft are provided on the car.
  • the operating mechanism includes a movable iron core mechanically connected to the drive shaft via a connecting piece, and an electromagnet that attracts the movable iron core.
  • the drive shaft is biased by a drive spring, but normally the movement of the drive shaft is restrained by the operating mechanism because the electromagnet is energized and the movable iron core is attracted.
  • the electromagnet In the event of an emergency, the electromagnet is demagnetized and the restraint on the drive shaft is released, and the drive shaft is driven by the biasing force of the drive spring. As a result, the safety device operates to bring the car to an emergency stop.
  • the electromagnet when returning the safety device to its normal state, move the electromagnet closer to the movable iron core that was moved in the event of an emergency.
  • the electromagnet contacts the movable core, the electromagnet is energized and the movable core is attracted to the electromagnet. Further, the electromagnet is driven while the movable iron core is attracted to the electromagnet, and the movable iron core and the electromagnet are returned to the normal standby position.
  • the present invention provides an elevator apparatus equipped with a safety device capable of improving the operational reliability of the operating mechanism in the installation environment.
  • an elevator system includes a car, a safety device provided in the car, and an electric actuator provided in the car for operating the safety device.
  • An electric actuator comprises a housing, a mechanism located inside the housing, and an operation lever connected to the mechanism and extending from the inside of the housing to the outside of the housing, has a first ventilation hole and a second ventilation hole.
  • the present invention it is possible to prevent dust and foreign matter from adhering to or coming into contact with the electric actuator while suppressing the temperature rise of the electric actuator. Thereby, the reliability of the operation of the electric actuator in the installation environment can be improved.
  • FIG. 1 is a schematic configuration diagram of an elevator apparatus that is Embodiment 1.
  • FIG. FIG. 4 is a front view showing a mechanical portion of the electric actuator in Embodiment 1; 4 is a top view of the electric actuator showing the cover member in Example 1.
  • FIG. 4 is a top view of the electric actuator showing the cover member and the plate-like member in Example 1.
  • FIG. 4 is a side view showing an example of an opening provided in the housing in Example 1.
  • FIG. 4 is a side view showing another example of an opening provided in the housing in Example 1.
  • FIG. FIG. 2 is a schematic configuration diagram of an elevator apparatus that is Embodiment 2;
  • FIG. 11 is a front view showing a mechanical portion of an electric actuator in Example 2;
  • FIG. 11 is a side view showing an example of an opening provided in a housing in Example 2;
  • FIG. 1 is a schematic configuration diagram of an elevator apparatus that is Embodiment 1 of the present invention.
  • the elevator system includes a car 1, an electric actuator 10, a drive mechanism (12-20), a lifting rod 21, and a safety device 2.
  • a car 1 is suspended by a main rope (not shown) in a hoistway provided in a building, and is slidably engaged with a guide rail 4 via a guide device (not shown).
  • a driving device hoisting machine: not shown
  • the car 1 ascends and descends in the hoistway.
  • a speed detection device (not shown) is provided in the car 1 and constantly detects the ascending/descending speed of the car 1 in the hoistway. Therefore, the speed detector can detect that the elevator car 1 has exceeded a predetermined overspeed.
  • the speed detection device is provided with an image sensor, and detects the speed of the car 1 based on the image information of the surface condition of the guide rail 4 acquired by the image sensor. For example, the speed detection device calculates the speed from the moving distance of the image feature amount in a predetermined time.
  • the speed detection device may calculate the speed of the car based on the output signal of a rotary encoder that rotates as the car moves.
  • the electric actuator 10 is an electromagnetic actuator in this embodiment and is arranged above the car 1 .
  • the electromagnetic operator has, for example, a movable piece or a movable rod operated by a solenoid or electromagnet.
  • the electric actuator 10 is activated when the speed detector detects a predetermined overspeed condition of the car 1 .
  • the drive mechanism (12-20) connected to the operating lever 11 pulls up the pull-up rod 21.
  • the safety device 2 is brought into a braking state.
  • the drive mechanisms (12-20) will be described later.
  • the safety devices 2 are arranged one by one on the left and right sides of the car 1.
  • a pair of brakes (not shown) included in each safety device 2 are movable between a braking position and a non-braking position, sandwich the guide rail 4 at the braking position, and rise relatively as the car 1 descends. Then, a braking force is generated by the frictional force acting between the brake shoe and the guide rail 4 .
  • the safety device 2 is actuated when the car 1 is in an overspeed condition to bring the car 1 to an emergency stop.
  • the elevator system of the present embodiment 1 is provided with a so-called ropeless governor system that does not use a governor rope. speed not more than doubled), power to the drive (hoisting machine) and to the control device controlling this drive is cut off. Further, when the descending speed of the car 1 reaches a second overspeed (for example, a speed not exceeding 1.4 times the rated speed), the electric actuator 10 provided in the car 1 operates the safety device 2. Then, the car 1 is brought to an emergency stop.
  • the ropeless governor system is composed of the aforementioned speed detection device and a safety control device that determines the overspeed state of the car 1 based on the output signal of the speed detection device.
  • This safety control device measures the speed of the car 1 based on the output signal of the speed detection device, and when it is determined that the measured speed has reached the first overspeed, the power supply of the drive device (hoisting machine) and It outputs a command signal for shutting off the power supply of the control device that controls this drive device. Further, when the safety control device determines that the measured speed has reached the second overspeed, it outputs a command signal for operating the electric actuator 10 .
  • the pair of brakes included in the safety device 2 are pulled up by the lifting rod 21, the pair of brakes sandwich the guide rail 4.
  • the lifting rod 21 is driven by a drive mechanism (12-20) connected to the electric actuator 10. As shown in FIG.
  • FIG. 1 shows the configuration of the electric actuator 10 by seeing through the inside of the housing 30, the configuration of the electric actuator 10 will be described later (FIG. 2).
  • the operating lever 11 of the electric actuator 10 and the first operating piece 16 are connected to form a substantially T-shaped first link member.
  • the operating lever 11 and the first operating piece 16 constitute a T-shaped head and foot, respectively.
  • a substantially T-shaped first link member is rotatably supported by a crosshead 50 as a support member via a first operating shaft 19 at a connecting portion between the operating lever 11 and the first operating piece 16 .
  • One of the pair of lifting rods 21 (left side in the figure) is attached to the end of the first operating piece 16 which is the foot of the T-shape, opposite to the connecting portion between the operating lever 11 and the first operating piece 16 . The ends are connected.
  • the connecting piece 17 and the second operating piece 18 are connected to form a substantially T-shaped second link member.
  • the connecting piece 17 and the second operating piece 18 constitute a T-shaped head and foot, respectively.
  • the substantially T-shaped second link member is rotatably supported by the crosshead 50 via the second operating shaft 20 at the connecting portion between the connecting piece 17 and the second operating piece 18 .
  • the second operating piece 18 which is the leg of the T-shape, opposite to the connecting portion between the connecting piece 17 and the second operating piece 18, the other of the pair of lifting rods 21 (left side in the figure) is attached. The ends are connected.
  • the end of the operating lever 11 extending from the inside of the housing 30 to the outside and the end of the connecting piece 17 nearer to the upper part of the car 1 than the second operating shaft 20 are connected to the car. 1 are connected to one end (left side in the figure) and the other end (right side in the figure) of a drive shaft 12 lying on the upper side.
  • the drive shaft 12 slidably penetrates a fixing portion 14 (fixing bolts not shown) fixed to the crosshead 50 by bolting. Further, the drive shaft 12 passes through the pressing member 15 , and the pressing member 15 is fixed to the drive shaft 12 .
  • the pressing member 15 is positioned on the second link member (connecting piece 17, second operating piece 18) side of the fixed portion 14. As shown in FIG. An elastic drive spring 13 is positioned between the fixed portion 14 and the pressing member 15 , and the drive shaft 12 is inserted through the drive spring 13 .
  • the drive mechanism further includes a position adjuster 60 that sets the fixed position of the fixed portion 14 on the crosshead 50 . This improves the reliability of the operation of the drive mechanism. Note that the drive mechanism can operate without the position adjuster 60 .
  • the electromagnetic force restraining the movement of the operating lever 11 against the biasing force of the drive spring 13 disappears.
  • the biasing force of the drive spring 13 applied to the member 15 drives the drive shaft 12 along the longitudinal direction. Therefore, the first link member (operating lever 11, first operating piece 16) rotates around the first operating shaft 19, and the second link member (connecting piece 17, second operating piece 18) rotates. rotates about the second actuation axis 20 .
  • one lifting rod 21 connected to the first operating piece 16 of the first link member is driven and lifted, and the other lifting rod connected to the second operating piece 18 of the second link member is pulled up. 21 is driven and pulled up.
  • a flexible cover member 32 is provided on the insertion portion of the operation lever 11 in the housing cover 31 which is the upper surface of the housing 30 . This prevents dust, foreign matter, and the like from entering the housing 30 in which the mechanical portion of the electric actuator 10 is housed.
  • FIG. 2 is a front view showing the mechanical portion of the electric actuator 10 in the first embodiment, which is housed in the housing 30, in the installation state of FIG.
  • the safety device is in a non-operating state
  • the electric actuator 10 is in a standby state. That is, the elevator installation is in normal operating condition.
  • the movable member 34 connected to the operating lever 11 is attracted to the energized electromagnet 35 .
  • the operating lever 11 is connected to the movable member 34 via a bracket 38 rotatably provided on the movable member 34 .
  • At least the portion of the movable member 34 that is attracted to the electromagnet 35 is made of a magnetic material.
  • a flexible cover member 32 that covers the opening through which the operation lever 11 is inserted is provided in the housing cover 31 that is the upper surface of the housing 30 .
  • the cover member 32 is made of a thin plate-like rubber material. Since the cover member 32 has flexibility, the movement of the operating lever 11 when operating the safety device is not hindered.
  • the cover member 32 prevents dust, foreign matter, etc. from entering the housing 30 and adhering to or coming into contact with the mechanism. This improves the reliability of the operation of the electric actuator in the installation environment (such as in a hoistway). Therefore, the reliability of the operation of the safety device is improved.
  • a plate member 33 is further provided on the operating lever 11 .
  • the plate member 33 is fixed to the connecting portion between the bracket 38 and the operating lever 11 .
  • the planar portion of the plate-like member 33 is positioned in the housing 30 directly below the opening through which the operating lever 11 is inserted in the housing cover 31 and in the surrounding space, and is located above the mechanism portion positioned directly below the opening. cover the As a result, even if dust or foreign matter enters the housing 30, the dust or foreign matter is prevented from adhering to or coming into contact with the mechanism. As a result, the reliability of the operation of the electric actuator 10 in the installation environment (in a hoistway, etc.) is more reliably improved. Therefore, the reliability of the operation of the safety device is more reliably improved.
  • the electromagnet 35 is energized in the standby state of the electric actuator 10 as shown in FIG. Therefore, the temperature inside the housing 30 rises due to the heat generated by the electromagnet 35 . Therefore, in the first embodiment, as shown in FIG. 2, the housing 30 has openings 201 and 202 that serve as ventilation holes.
  • the opening 201 is located at the bottom of the housing 30 , in the first embodiment, on the side of the housing 30 opposite to the motor 37 side in the longitudinal direction of the electric actuator 10 .
  • the opening 201 is closed by the anti-dust filter 101 .
  • the opening 202 is located in the upper part of the housing 30, that is, in the longitudinal direction of the electric actuator 10 in the first embodiment, the upper surface of the housing 30 on the motor 37 side, that is, the housing cover 31 on the motor 37 side.
  • the opening 202 is closed by the anti-dust filter 102 .
  • the openings 201 and 202 are used as ventilation holes, and the heat inside the housing 30 is radiated to the outside of the housing 30 by natural ventilation.
  • dust filters 101 and 102 prevent dust from entering housing 30 . Therefore, it is possible to prevent dust from entering the housing 30 and prevent an excessive temperature rise of each part of the electric actuator 10, particularly the electromagnet 35, by heat dissipation due to natural ventilation. This improves the reliability of the operation of the electric actuator 10 .
  • the electric actuator 10 has a feed screw 36 (for example, a trapezoidal screw) located on the planar portion of the substrate 40 to drive the movable member 34 .
  • the feed screw 36 is rotatably supported by a first support member 41 and a second support member 42 fixed on the plane of the substrate 40 .
  • the electromagnet 35 has a nut portion that is screwed onto the feed screw 36 .
  • Feed screw 36 is rotated by motor 37 .
  • the motor 37 is driven to rotate the feed screw 36 .
  • Rotation of the motor 37 is converted into linear movement of the electromagnet 35 along the axial direction of the feed screw 36 by the rotating feed screw 36 and the nut portion of the electromagnet 35 .
  • the electromagnet 35 approaches the movement position of the movable member 34 and comes into contact with the movable member 34 .
  • contact between the electromagnet 35 and the movable member 34 is detected by a switch (not shown) or the load current of the motor 37, the electromagnet 35 is excited and the motor 37 is stopped.
  • the movable member 34 is attracted to the electromagnet 35 by electromagnetic force.
  • the plate-shaped member 33 is fixed to the operating lever 11 within the space inside the housing 30, so it moves together with the operating lever 11. That is, the plate member 33 does not hinder the movement of the operating lever 11 .
  • the plate-like member 33 and the operation lever 11 are fitted without a gap or closely connected by an adhesive or a bonding material. ing. Therefore, the plate-like member 33 and the operating lever 11 are connected to each other without any gaps at their connecting portions. Therefore, the plate member 33 reliably prevents dust, foreign matter, and the like from adhering to or coming into contact with the mechanism.
  • FIG. 3 is a top view of the electric actuator 10 showing the shape and fixed position of the flexible cover member 32 in the first embodiment. In addition, in FIG. 3, the electric actuator is in a standby state.
  • the cover member 32 is fixed so as to cover the opening B in the housing cover 31 that is the upper surface of the housing 30 .
  • the cover member 32 has a hole A at a position corresponding to the position through which the operating lever 11 passes in the opening B in the standby state. Furthermore, the cover member 32 has a slit S along the direction in which the operating lever 11 moves. In addition, the slit S may be only a cut and may not have a gap.
  • the cover member 32 Since the cover member 32 is made of a flexible material such as rubber, it bends with the movement of the operating lever 11, so that the movement of the operating lever 11 is not hindered. Further, in the first embodiment, since the cover member 32 has the slit S, the resistance force that the operation lever 11 receives from the cover member 32 is reduced, and the movement of the operation lever 11 is reliably prevented from being hindered.
  • the cover member 32 enhances the airtightness of the housing 30, but since the housing 30 has ventilation holes (openings 201 and 202 (FIG. 2)) with dust filters (101 and 102), the housing 30 Excessive temperature rise of each part of the electric actuator 10, especially the electromagnet 35 can be prevented while preventing dust from entering inside.
  • FIG. 4 is a top view of the electric actuator 10 showing the positional relationship between the flexible cover member 32 and the plate member 33 fixed to the operation lever 11 in the first embodiment.
  • the plate member 33 is indicated by a broken line.
  • the electric actuator is in a standby state.
  • the planar portion of the plate-like member 33 is located directly below the opening B (Fig. 4). Further, the planar portion of the plate-like member 33 extends from the region immediately below the opening B (FIG. 3) in the longitudinal direction of the cover member 32 or the opening B (FIG. 3) or in the direction perpendicular to the longitudinal direction of the feed screw 36. It has spread. Therefore, the plate member 33 covers the movable member 34 to which the operating lever 11 is connected and part of the feed screw 36 adjacent to the movable member 34 . Therefore, it is possible to reliably prevent dust, foreign matter, and the like from adhering to or coming into contact with these mechanical portions.
  • the length direction of the slit S (see FIG. 3) of the cover member 32 is along the axial direction of the feed screw . Therefore, the cover member 32 does not hinder the lateral movement of the operating lever 11 in FIG. That is, the cover member 32 does not hinder the movement of the operating lever 11 not only when shifting from the standby state to the braking state but also when returning to the standby state.
  • FIG. 5 is a side view of the housing 30 showing an example of the opening 201 provided in the housing 30 according to the first embodiment.
  • one rectangular opening 201 is provided on the side surface of the housing 30 .
  • the opening 201 is closed by the anti-dust filter 101 . Therefore, air passes through the opening 201 , but dust is prevented from entering the housing 30 by the anti-dust filter 101 .
  • FIG. 6 is a side view of the housing 30 showing another example of the opening 201 provided in the housing 30 according to the first embodiment.
  • a plurality of slit-shaped openings 201 are provided on the side surface of the housing 30 .
  • the opening 201 is closed by the anti-dust filter 101 . Therefore, air passes through each opening 201 , but dust is prevented from entering housing 30 by dust filter 101 .
  • the shape of the opening 202 in the upper part of the housing 30 is also the same as that of the opening 201 .
  • the shape of the opening is not limited to the rectangular shape or the slit shape, and may be other shapes such as a circular shape.
  • the first embodiment it is possible to prevent dust and foreign matter from adhering to or coming into contact with the mechanical portion of the electric actuator while suppressing the temperature rise of the electric actuator. Thereby, the reliability of the operation of the electric actuator in the installation environment can be improved. Therefore, the reliability of the operation of the safety device and the safety device of the elevator system is improved.
  • the dustproof members such as the dustproof filters 101 and 102 may be provided only in the ventilation holes into which dust easily enters, for example, the ventilation holes on the intake side, among the plurality of ventilation holes.
  • a simple dustproof means such as a louver, a louver, or a canopy may be provided adjacent to the ventilation hole provided with no dustproof member.
  • Example 2 of the present invention will be described with reference to FIGS. Note that differences from the first embodiment will be mainly described.
  • FIG. 7 is a schematic configuration diagram of an elevator apparatus that is Embodiment 2 of the present invention.
  • a ventilation pipe 301 is provided in the opening of the housing 30, which serves as a ventilation hole of the housing 30. As shown in FIG. 7,
  • FIG. 8 is a front view showing the mechanical portion of the electric actuator 10 in the second embodiment, which is housed in the housing 30, in the installation state shown in FIG.
  • the safety device is in a non-operating state, and the electric actuator 10 is in a standby state. That is, the elevator installation is in normal operating condition.
  • One open end of the ventilation pipe 301 is connected to the opening 201 located on the side surface of the housing 30 .
  • the ventilation pipe 301 extends horizontally from the opening 201 , then bends downward and extends downward along the side of the car 1 . Therefore, the other open end of the ventilation pipe 301 serving as an air intake port faces downward in the hoistway and is positioned below the opening 201 . Since the opening 201 is adjacent to the side surface of the car 1, the length of the ventilation pipe 301 can be reduced.
  • the ventilation pipe 301 promotes the air flow (F) from the opening 201 to the opening 202, thereby improving heat dissipation.
  • the air that flows upward in the hoistway due to the draft phenomenon is taken in from the opening end of the ventilation pipe 301 facing downward, is taken into the housing 30 from the opening 201, and absorbs the heat generated by the electromagnet 35. Then, it is discharged out of the housing 3 through the opening 202 .
  • the heat generated by the electromagnet 35 is efficiently radiated to the outside of the housing 30 .
  • FIG. 9 is a side view of the housing 30 showing an example of the opening 201 provided in the housing 30 according to the second embodiment.
  • the opening 201 in the second embodiment is circular in conformity with the shape of the open end of the ventilation pipe 301. As shown in FIG. Circular opening 201 is closed by dust filter 101 . Therefore, air from the ventilation pipe 301 passes through the opening 201 , but dust is prevented from entering the housing 30 by the dust filter 101 .
  • the circular edge of the open end of the ventilation pipe 301 is arranged concentrically with the circular edge of the opening 201 to form an outer circle. That is, the ventilation pipe 301 is connected to the side opening 201 of the housing 30 so that the opening 201 does not protrude outside the ventilation pipe 301 . Therefore, the entire opening 201 serves as an intake port for air from the ventilation pipe 301 .
  • the configuration of the opening 202 in the upper portion of the housing 30 in the second embodiment is the same as in the first embodiment.
  • the shape of the opening 202 in the second embodiment may be a rectangular shape, a slit shape (FIGS. 5 and 6), or other shapes such as a circular shape.
  • the second embodiment described above it is possible to prevent dust and foreign matter from adhering to or coming into contact with the mechanical portion of the electric actuator 10 while improving the heat dissipation of the electric actuator 10 .
  • This improves the reliability of the operation of the electric actuator in the installation environment. Therefore, the reliability of the operation of the safety device and the safety device of the elevator system is improved.
  • the present invention is not limited to the above-described embodiments, and includes various modifications.
  • the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations.
  • the electric actuator 10 may be provided not only on the upper part of the car 1, but also on the lower part or the side part. Also, the electric actuator may be provided with a linear actuator.
  • the elevator apparatus may have a machine room or may be a so-called machine room-less elevator.
  • a fan may be provided in the ventilation hole composed of the opening 202 and the dust filter 102 shown in FIGS. 2 and 8 to forcibly dissipate the heat.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

L'invention concerne un appareil du type ascenseur qui est apte à améliorer la fiabilité d'action d'un mécanisme d'actionnement dans un environnement d'installation et qui comprend un dispositif d'arrêt d'urgence. Cet appareil du type ascenseur comprend une cabine (1), un dispositif d'arrêt d'urgence qui est disposé sur la cabine et un opérateur électrique (10) qui est disposé sur la cabine et qui actionne le dispositif d'arrêt d'urgence. L'opérateur électrique est doté d'un boîtier (30), d'une unité de mécanisme (36, 37, 40-42) qui est positionnée à l'intérieur du boîtier et d'un levier de manipulation (11) qui est relié à l'unité de mécanisme et qui s'étend de l'intérieur du boîtier à l'extérieur du boîtier. Le boîtier présente un premier trou de ventilation (101, 201) et un second trou de ventilation (102, 202).
PCT/JP2021/013024 2021-03-26 2021-03-26 Appareil du type ascenseur WO2022201529A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2021/013024 WO2022201529A1 (fr) 2021-03-26 2021-03-26 Appareil du type ascenseur

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Application Number Priority Date Filing Date Title
PCT/JP2021/013024 WO2022201529A1 (fr) 2021-03-26 2021-03-26 Appareil du type ascenseur

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WO2022201529A1 true WO2022201529A1 (fr) 2022-09-29

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0254286U (fr) * 1988-10-13 1990-04-19
WO2005115905A1 (fr) * 2004-05-27 2005-12-08 Mitsubishi Denki Kabushiki Kaisha Contrôleur d'élévateur
JP2009046274A (ja) * 2007-08-22 2009-03-05 Mitsubishi Electric Building Techno Service Co Ltd 昇降防止装置およびエレベータ装置
CN105329737A (zh) * 2015-10-28 2016-02-17 上海和蕴机电科技有限公司 采用电气控制的防坠落系统、运载平台系统及其控制方法
CN206673426U (zh) * 2017-04-26 2017-11-24 浙江卓松电气有限公司 一种低压配电柜
CN110526094A (zh) * 2019-09-26 2019-12-03 西继迅达（许昌）电梯有限公司 带电子提拉安全钳的对重框
JP2020072240A (ja) * 2018-11-02 2020-05-07 株式会社東芝 電子機器筐体、及び電子機器筐体のカバー
WO2020110437A1 (fr) * 2018-11-28 2020-06-04 株式会社日立製作所 Dispositif d'arrêt d'urgence et ascenseur

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0254286U (fr) * 1988-10-13 1990-04-19
WO2005115905A1 (fr) * 2004-05-27 2005-12-08 Mitsubishi Denki Kabushiki Kaisha Contrôleur d'élévateur
JP2009046274A (ja) * 2007-08-22 2009-03-05 Mitsubishi Electric Building Techno Service Co Ltd 昇降防止装置およびエレベータ装置
CN105329737A (zh) * 2015-10-28 2016-02-17 上海和蕴机电科技有限公司 采用电气控制的防坠落系统、运载平台系统及其控制方法
CN206673426U (zh) * 2017-04-26 2017-11-24 浙江卓松电气有限公司 一种低压配电柜
JP2020072240A (ja) * 2018-11-02 2020-05-07 株式会社東芝 電子機器筐体、及び電子機器筐体のカバー
WO2020110437A1 (fr) * 2018-11-28 2020-06-04 株式会社日立製作所 Dispositif d'arrêt d'urgence et ascenseur
CN110526094A (zh) * 2019-09-26 2019-12-03 西继迅达（许昌）电梯有限公司 带电子提拉安全钳的对重框

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