WO2022201529A1 - Elevator apparatus - Google Patents

Elevator apparatus 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
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WO
WIPO (PCT)
Prior art keywords
housing
electric actuator
ventilation hole
car
elevator
Prior art date
Application number
PCT/JP2021/013024
Other languages
French (fr)
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
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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/en
Publication of WO2022201529A1 publication Critical patent/WO2022201529A1/en

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

Abstract

Disclosed is an elevator apparatus that is capable of improving the reliability of action of an operating mechanism in an installation environment and that comprises an emergency stop device. This elevator apparatus comprises a car (1), an emergency stop device that is provided to the car, and an electric operator (10) that is provided to the car and that actuates the emergency stop device. The electric operator is provided with a housing (30), a mechanism unit (36, 37, 40-42) that is positioned inside the housing, and a manipulation lever (11) that is connected to the mechanism unit and that extends from the inside of the housing to the outside of the housing. The housing has a first ventilation hole (101, 201) and a second ventilation hole (102, 202).

Description

エレベータ装置elevator equipment
　本発明は、電動で作動する非常止め装置を備えるエレベータ装置に関する。 The present invention relates to an elevator apparatus equipped with an electrically operated safety device.
　エレベータ装置には、乗りかごの昇降速度を常時監視して、所定の過速状態に陥った乗りかごを非常停止させるために、ガバナおよび非常止め装置が備えられている。一般に、乗りかごとガバナはガバナロープによって結合されており、過速状態を検出すると、ガバナがガバナロープを拘束することで乗りかご側の非常止め装置を動作させ、乗りかごを非常停止するようになっている。 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. In general, 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. there is
　このようなエレベータ装置では、昇降路内に長尺物であるガバナロープを敷設するため、省スペース化および低コスト化が難しい。また、ガバナロープが振れる場合、昇降路内における構造物とガバナロープとが干渉しやすくなる。 In such an elevator system, it is difficult to save space and reduce costs because a long governor rope is laid in the hoistway. In addition, when the governor rope swings, the structures in the hoistway and the governor rope tend to interfere with each other.
　これに対し、ガバナロープを用いない非常止め装置が提案されている。 In response, an emergency stop device that does not use a governor rope has been proposed.
　ガバナロープを用いない非常止め装置に関する従来技術として、特許文献１に記載された技術が知られている。 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.
　本従来技術では、乗りかご上に、非常止め装置を駆動する駆動軸と、駆動軸を作動させる作動機構が設けられる。作動機構は、接続片を介して駆動軸に機械的に接続される可動鉄心と、可動鉄心を吸着する電磁石を備えている。駆動軸は、駆動バネによって付勢されているが、通常時は、電磁石が通電され可動鉄心が吸着されているため、作動機構によって駆動軸の動きが拘束されている。 In this prior art, 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.
　非常時には、電磁石が消磁されて駆動軸の拘束が解かれ、駆動バネの付勢力によって駆動軸が駆動される。これにより、非常止め装置が動作して、乗りかごが非常停止する。 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.
　また、非常止め装置を通常状態に復帰させるときには、非常時に移動した可動鉄心に電磁石を移動して近付ける。電磁石が可動鉄心に当接したら、電磁石を通電し、可動鉄心を電磁石に吸着する。さらに、可動鉄心が電磁石に吸着された状態で、電磁石を駆動して、可動鉄心および電磁石を通常時の待機位置に戻す。 Also, 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. When 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.
国際公開第２０２０／１１０４３７号WO2020/110437
　電磁石によって動作する作動機構により作動する従来の非常止め装置では、設置環境において、作動機構に塵埃や異物が付着もしくは接触することによって、動作の信頼性が低下する恐れがある。 With conventional emergency stop devices that are operated by an operating mechanism operated by an electromagnet, there is a risk that the reliability of operation will decrease due to dust or foreign matter adhering to or coming into contact with the operating mechanism in the installation environment.
　そこで、本発明は、設置環境における作動機構の動作の信頼性を向上することができる非常止め装置を備えるエレベータ装置を提供する。 Therefore, 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.
　上記課題を解決するために、本発明によるエレベータ装置は、乗りかごと、乗りかごに設けられる非常止め装置と、乗りかごに設けられ、非常止め装置を動作させる電動作動器と、を備えるものであって、電動作動器は、筐体と、筐体の内部に位置する機構部と、機構部に接続され、筐体の内部から、筐体の外部に延びる操作レバーと、を備え、筐体は、第１の換気孔および第２の換気孔を有する。 In order to solve the above problems, an elevator system according to the present invention 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.
　本発明によれば、電動作動器の温度上昇を抑制しながらも、塵埃や異物が付着もしくは接触することが防止される。これにより、設置環境における電動作動器の動作の信頼性を向上することができる。 According to 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.
　上記した以外の課題、構成および効果は、以下の実施形態の説明により明らかにされる。 Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.
実施例１であるエレベータ装置の概略構成図である。1 is a schematic configuration diagram of an elevator apparatus that is Embodiment 1. FIG. 実施例１における電動作動器の機構部を示す正面図である。FIG. 4 is a front view showing a mechanical portion of the electric actuator in Embodiment 1; 実施例１におけるカバー部材を示す電動作動器の上面図である。4 is a top view of the electric actuator showing the cover member in Example 1. FIG. 実施例１におけるカバー部材および板状部材を示す電動作動器の上面図である。4 is a top view of the electric actuator showing the cover member and the plate-like member in Example 1. FIG. 実施例１における筐体が備える開口部の一例を示す側面図である。4 is a side view showing an example of an opening provided in the housing in Example 1. FIG. 実施例１における筐体が備える開口部の他の例を示す側面図である。4 is a side view showing another example of an opening provided in the housing in Example 1. FIG. 実施例２であるエレベータ装置の概略構成図である。FIG. 2 is a schematic configuration diagram of an elevator apparatus that is Embodiment 2; 実施例２における電動作動器の機構部を示す正面図である。FIG. 11 is a front view showing a mechanical portion of an electric actuator in Example 2; 実施例２における筐体が備える開口部の一例を示す側面図である。FIG. 11 is a side view showing an example of an opening provided in a housing in Example 2;
　以下、本発明の一実施形態であるエレベータ装置について、実施例１～２により、図面を用いながら説明する。なお、各図において、参照番号が同一のものは同一の構成要件あるいは類似の機能を備えた構成要件を示している。 Hereinafter, an elevator apparatus that is one embodiment of the present invention will be described with reference to Examples 1 and 2 with reference to the drawings. In each figure, the same reference numbers denote the same components or components with similar functions.
　図１は、本発明の実施例１であるエレベータ装置の概略構成図である。 FIG. 1 is a schematic configuration diagram of an elevator apparatus that is Embodiment 1 of the present invention.
　図１に示すように、エレベータ装置は、乗りかご１と、電動作動器１０と、駆動機構（１２～２０）と、引上げロッド２１と、非常止め装置２とを備えている。 As shown in FIG. 1, 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.
　乗りかご１は、建築物に設けられる昇降路内に主ロープ（図示せず）により吊られており、ガイド装置（図示せず）を介してガイドレール４に摺動可能に係合している。駆動装置（巻上機：図示せず）により主ロープが摩擦駆動されると、乗りかご１は昇降路内を昇降する。 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). . When the main rope is friction-driven by a driving device (hoisting machine: not shown), the car 1 ascends and descends in the hoistway.
　図示しない速度検出装置が、乗りかご１に備えられ、昇降路内における乗りかご１の昇降速度を常時検出する。したがって、速度検出装置により、乗りかご１の昇降速度が所定の過速度を超えたことを検出することができる。 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.
　本実施例では、速度検出装置は、画像センサを備え、画像センサによって取得されるガイドレール４の表面状態の画像情報に基づいて、乗りかご１の速度を検出する。例えば、速度検出装置は、所定時間における画像特徴量の移動距離から速度を算出する。 In this embodiment, 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.
　なお、速度検出装置は、乗りかごの移動とともに回転するロータリーエンコーダの出力信号に基づいて、乗りかごの速度を算出してもよい。 Note that 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.
　電動作動器１０は、本実施例では電磁作動器であり、乗りかご１の上部に配置される。電磁操作器は、例えば、ソレノイドもしくは電磁石によって作動する可動片もしくは可動杆を備えるものである。電動作動器１０は、速度検出装置が乗りかご１の所定の過速状態を検出したときに作動する。このとき、操作レバー１１に接続されている駆動機構（１２～２０）により、引上げロッド２１が引き上げられる。これにより、非常止め装置２が制動状態となる。 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 . At this time, the drive mechanism (12-20) connected to the operating lever 11 pulls up the pull-up rod 21. As shown in FIG. As a result, the safety device 2 is brought into a braking state.
　なお、駆動機構（１２～２０）については後述する。 The drive mechanisms (12-20) will be described later.
　非常止め装置２は、乗りかご１の左右に一台ずつ配置される。各非常止め装置２が備える図示しない一対の制動子は、制動位置および非制動位置の間で可動であり、制動位置においてガイドレール４を挟持し、さらに、乗りかご１の下降により相対的に上昇すると、制動子とガイドレール４との間に作用する摩擦力により制動力を生じる。これにより、非常止め装置２は、乗りかご１が過速状態に陥ったときに作動し、乗りかご１を非常停止させる。 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 . As a result, the safety device 2 is actuated when the car 1 is in an overspeed condition to bring the car 1 to an emergency stop.
　本実施例１のエレベータ装置は、ガバナロープを用いない、いわゆるロープレスガバナシステムを備えるものであり、乗りかご１の昇降速度が定格速度を超えて第１過速度（例えば、定格速度の１．３倍を超えない速度）に達すると、駆動装置（巻上機）の電源およびこの駆動装置を制御する制御装置の電源が遮断される。また、乗りかご１の下降速度が第２過速度（例えば、定格速度の１．４倍を超えない速度）に達すると、乗りかご１に設けられる電動作動器１０が非常止め装置２を作動させて、乗りかご１が非常停止される。 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.
　本実施例において、ロープレスガバナシステムは、前述の速度検出装置と、速度検出装置の出力信号に基づいて乗りかご１の過速状態を判定する安全制御装置と、から構成される。この安全制御装置は、速度検出装置の出力信号に基づいて乗りかご１の速度を計測し、計測される速度が第１過速度に達したと判定すると、駆動装置（巻上機）の電源およびこの駆動装置を制御する制御装置の電源を遮断するための指令信号を出力する。また、安全制御装置は、計測される速度が第２過速度に達したと判定すると、電動作動器１０を作動するための指令信号を出力する。 In this embodiment, 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 .
　前述のように、非常止め装置２が備える一対の制動子が引上げロッド２１によって引き上げられると、一対の制動子がガイドレール４を挟持する。引上げロッド２１は、電動作動器１０に接続される駆動機構（１２～２０）によって駆動される。 As described above, when 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.
　以下、この駆動機構の構成について説明する。なお、図１においては、筐体３０内を透視して電動作動器１０の構成を示しているが、電動作動器１０の構成については、後述する（図２）。 The configuration of this drive mechanism will be described below. 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).
　電動作動器１０の操作レバー１１と第１の作動片１６が連結され、略Ｔ字状の第１リンク部材が構成される。操作レバー１１および第１の作動片１６はそれぞれＴ字の頭部および足部を構成する。略Ｔ字状の第１リンク部材は、操作レバー１１と第１の作動片１６の連結部において、第１の作動軸１９を介して、支持部材であるクロスヘッド５０に回動可能に支持される。Ｔ字の足部となる第１の作動片１６における、操作レバー１１と第１の作動片１６の連結部とは反対側の端部に、一対の引上げロッド２１の一方（図中左側）の端部が接続される。 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 . be. 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.
　接続片１７と第２の作動片１８が連結され、略Ｔ字状の第２リンク部材が構成される。接続片１７および第２の作動片１８はそれぞれＴ字の頭部および足部を構成する。略Ｔ字状の第２リンク部材は、接続片１７と第２の作動片１８の連結部において、第２の作動軸２０を介してクロスヘッド５０に回動可能に支持される。Ｔ字の足部となる第２の作動片１８における、接続片１７と第２の作動片１８の連結部とは反対側の端部に、一対の引上げロッド２１の他方（図中左側）の端部が接続される。 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 . At the end of 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.
　筐体３０の内部から外部に伸びる操作レバー１１の端部と、接続片１７の両端部の内、第２の作動軸２０よりも乗りかご１の上部に近い端部とが、それぞれ、乗りかご１上に横たわる駆動軸１２の一端（図中左側）と他端（図中右側）とに接続される。 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.
　駆動軸１２は、ボルト締結によってクロスヘッド５０に固定される固定部１４（固定用ボルトは図示せず）を摺動可能に貫通している。また、駆動軸１２は、押圧部材１５を貫通し、押圧部材１５は駆動軸１２に固定されている。なお、押圧部材１５は、固定部１４の第２リンク部材（接続片１７、第２の作動片１８）側に位置する。固定部１４と押圧部材１５の間に、弾性体である駆動ばね１３が位置し、駆動ばね１３には駆動軸１２が挿通される。 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 .
　本実施例１においては、駆動機構がさらに、固定部１４のクロスヘッド５０における固定位置を設定する位置調整器６０を備えている。これにより、駆動機構の動作の信頼性が向上する。なお、駆動機構は、位置調整器６０を備えていなくても、動作可能である。 In Embodiment 1, 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 .
　電動作動器１０が作動すると、すなわち本実施例１では電磁石への通電が遮断されると、駆動ばね１３の付勢力に抗して操作レバー１１の動きを拘束する電磁力が消失するので、押圧部材１５に加わる駆動ばね１３の付勢力によって、駆動軸１２が長手方向に沿って駆動される。このため、第１リンク部材（操作レバー１１、第１の作動片１６）が第１の作動軸１９の回りに回動するとともに、第２リンク部材（接続片１７、第２の作動片１８）が第２の作動軸２０の回りに回動する。これにより、第１リンク部材の第１の作動片１６に接続される一方の引上げロッド２１が駆動されて引き上げられるとともに、第２リンク部材の第２の作動片１８に接続される他方の引上げロッド２１が駆動されて引き上げられる。 When the electric actuator 10 is operated, that is, when the electromagnet is de-energized in the first embodiment, 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 . As a result, 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.
　なお、本実施例１においては、後述するように、筐体３０の上面となる筐体カバー３１における操作レバー１１の挿通部に可撓性のカバー部材３２が設けられる。これにより、電動作動器１０の機構部が格納される筐体３０内への塵埃や異物などの侵入が防止される。 In the first embodiment, as will be described later, 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.
　図２は、本実施例１における電動作動器１０の、筐体３０内に格納される機構部を示し、図１の設置状態における正面図である。なお、図２において、非常止め装置は非作動状態であり、電動作動器１０は待機状態にある。すなわち、エレベータ装置は、通常の運転状態である。 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. In FIG. 2, 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.
　図２に示すように、待機状態においては、操作レバー１１に接続される可動部材３４が、励磁されている電磁石３５に吸引されている。これにより、駆動ばね１３（圧縮ばね）の付勢力に抗して、操作レバー１１の動きが拘束されている。なお、操作レバー１１は、可動部材３４に回動可能に設けられるブラケット３８を介して、可動部材３４に接続される。また、可動部材３４における少なくとも電磁石３５と吸着する部分は磁性体からなる。 As shown in FIG. 2, in the standby state, the movable member 34 connected to the operating lever 11 is attracted to the energized electromagnet 35 . As a result, the movement of the operating lever 11 is restrained against the biasing force of the drive spring 13 (compression spring). 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.
　図２中における他の機構部（３６，３７，４０－４２）については、後述する（図３）。 The other mechanism parts (36, 37, 40-42) in FIG. 2 will be described later (FIG. 3).
　本実施例においては、筐体３０の上面となる筐体カバー３１において操作レバー１１が挿通する開口部に、この開口部を覆う可撓性のカバー部材３２が設けられる。例えば、カバー部材３２は、薄板状のゴム材からなる。カバー部材３２が可撓性を有するので、非常止め装置を作動させるときの操作レバー１１の動きは妨げられない。 In this embodiment, 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 . For example, 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.
　カバー部材３２よって、筐体３０内への塵埃や異物などが侵入して、機構部に付着したり接触したりすることが抑制される。これにより、設置環境（昇降路内など）における電動作動器の動作の信頼性が向上する。したがって、非常止め装置の動作の信頼性が向上する。 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.
　本実施例においては、さらに、操作レバー１１に、板状部材３３が設けられる。板状部材３３は、ブラケット３８と操作レバー１１の接続部に固定されている。板状部材３３の平面部は、筐体３０内において、筐体カバー３１において操作レバー１１が挿通する開口部の直下およびその周辺の空間内に位置するとともに、開口部直下に位置する機構部上を覆う。これにより、筐体３０内へ塵埃や異物などが侵入しても、塵埃や異物などが機構部に付着したり接触したりすることが防止される。これにより、設置環境（昇降路内など）における電動作動器１０の動作の信頼性がより確実に向上する。したがって、非常止め装置の動作の信頼性がより確実に向上する。 In this embodiment, 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.
　電磁石３５は、図２に示すような電動作動器１０の待機状態において、通電されている。このため、電磁石３５の発熱により、筐体３０内の温度が上昇する。そこで、本実施例１では、図２に示すように、筐体３０が、換気孔となる開口部２０１および２０２を備えている。 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.
　開口部２０１は、開口部２０１は、筐体３０の下部、本実施例１では、電動作動器１０の長手方向において、モータ３７側とは反対側における筐体３０の側面に位置する。開口部２０１は、防塵フィルタ１０１によって塞がれている。 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 .
　開口部２０２は、筐体３０の上部、本実施例１では、電動作動器１０の長手方向において、モータ３７側における筐体３０の上面、すなわち筐体カバー３１のモータ３７側に位置する。開口部２０２は、防塵フィルタ１０２によって塞がれている。 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 .
　本実施例１では、開口部２０１および２０２を換気孔とし、自然換気により、筐体３０内の熱が筐体３０外に放熱される。このとき、防塵フィルタ１０１および１０２によって、筐体３０内への塵埃の侵入が防止される。したがって、筐体３０内への塵埃の侵入を防止しながらも、自然換気による放熱により、電動作動器１０の各部、特に電磁石３５の過度な温度上昇が防止できる。これにより、電動作動器１０の動作の信頼性が向上する。 In Embodiment 1, 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. At this time, 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 .
　ここで、電動作動器１０の動作について説明しておく。 Here, the operation of the electric actuator 10 will be explained.
　図示しない安全制御装置からの指令により、電磁石３５の励磁が停止されると、可動部材３４に作用する吸引力が消失するので、駆動ばね１３の付勢力が開放されて駆動軸１２が駆動される。駆動軸１２が駆動されると、駆動軸１２に接続される操作レバー１１が第１の作動軸１９の回りに回動し、連動して、操作レバー１１に連結される第１の作動片１６が第１の作動軸１９の回り（図２における時計回り）に回動する。これにより、第１の作動片（１１，１６）に接続される引上げロッド２１が引き上げられる。 When the excitation of the electromagnet 35 is stopped by a command from a safety control device (not shown), the attractive force acting on the movable member 34 disappears, so the biasing force of the drive spring 13 is released and the drive shaft 12 is driven. . When the drive shaft 12 is driven, the operating lever 11 connected to the drive shaft 12 rotates around the first operating shaft 19, interlocking with the first operating piece 16 connected to the operating lever 11. rotates around the first operating shaft 19 (clockwise in FIG. 2). As a result, the lifting rod 21 connected to the first operating piece (11, 16) is lifted.
　上述のように操作レバー１１が回動すると、操作レバー１１に接続される可動部材３４は、操作レバー１１の回動方向に沿って（図２における左方向へ）移動する。電動作動器１０を図２に示すような待機状態に復帰させるためには、次に述べるように、機構部（３６，３７，４０－４２）によって、可動部材３４を移動位置から待機時の位置（図２）に戻す。 When the operating lever 11 rotates as described above, the movable member 34 connected to the operating lever 11 moves along the rotating direction of the operating lever 11 (leftward in FIG. 2). In order to return the electric actuator 10 to the standby state as shown in FIG. (Figure 2).
　電動作動器１０は、可動部材３４を駆動するために基板４０の平面部上に位置する送りねじ３６（例えば、台形ねじ）を有する。送りねじ３６は、基板４０の平面上に固定される第１の支持部材４１および第２の支持部材４２によって回転可能に支持される。電磁石３５は、ナット部を備えており、このナット部が送りねじ３６と螺合する。送りねじ３６は、モータ３７によって回転される。 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 .
　電動作動器１０を待機状態に復帰させるには、まず、モータ３７を駆動して送りねじ３６を回転させる。回転する送りねじ３６と電磁石３５が備えるナット部とによって、モータ３７の回転が、送りねじ３６の軸方向に沿った電磁石３５の直線的移動に変換される。これにより、電磁石３５は、可動部材３４の移動位置に近づいて、可動部材３４に接触する。図示されないスイッチ、もしくはモータ３７の負荷電流によって、電磁石３５と可動部材３４の接触が検知されたら、電磁石３５を励磁するとともに、モータ３７を停止する。可動部材３４は、電磁力が作用して、電磁石３５に吸着する。可動部材３４が電磁石３５に吸着したら、電磁石３５の励磁を継続しながら、モータ３７の回転方向を逆にして、送りねじ３６を逆転させる。これにより、可動部材３４は、電磁石３５とともに、待機時の位置まで移動する。 In order to return the electric actuator 10 to the standby state, first, 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 . As a result, the electromagnet 35 approaches the movement position of the movable member 34 and comes into contact with the movable member 34 . When 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. When the movable member 34 is attracted to the electromagnet 35, the direction of rotation of the motor 37 is reversed while the excitation of the electromagnet 35 is continued, and the feed screw 36 is reversed. As a result, the movable member 34 moves together with the electromagnet 35 to the standby position.
　本実施例１において、板状部材３３は筐体３０内の空間内で操作レバー１１に固定されているので、操作レバー１１とともに動く。すなわち、板状部材３３は、操作レバー１１の動きを妨げない。 In the first embodiment, 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 .
　なお、本実施例１においては、板状部材３３を操作レバー１１に固定するために、板状部材３３と操作レバー１１は、隙間なく嵌め合わされたり、接着剤や接合材により密着接続されたりしている。このため、板状部材３３と操作レバー１１は、これらの接続部に間隙が生じることなく、互いに接続されている。したがって、板状部材３３により、塵埃や異物などが機構部に付着したり接触したりすることが確実に防止される。 In the first embodiment, in order to fix the plate-like member 33 to the operation 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.
　図３は、本実施例１における可撓性のカバー部材３２の形状および固定位置を示す、電動作動器１０の上面図である。なお、図３において、電動作動器は待機状態にある。 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.
　カバー部材３２は、筐体３０の上面となる筐体カバー３１における開口部Ｂにおいて、開口部Ｂを覆うように固定されている。 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 .
　カバー部材３２は、開口部Ｂにおいて操作レバー１１が待機状態で通る位置に対応する位置に孔部Ａを有する。さらに、カバー部材３２は、操作レバー１１が移動する方向に沿って、スリットＳを有する。なお、スリットＳは切れ目だけで、間隙が無くてもよい。 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.
　カバー部材３２は、ゴムなどの可撓性材料からなるので、操作レバー１１の移動とともに撓むため、操作レバー１１の動きが妨げられない。また、本実施例１では、カバー部材３２がスリットＳを有するので、操作レバー１１がカバー部材３２から受ける抵抗力が低減され、操作レバー１１の移動が妨げられることが確実に防止される。 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.
　カバー部材３２により、筐体３０の密閉性が高まるが、筐体３０が防塵フィルタ（１０１，１０２）付きの換気孔（開口部２０１，２０２（図２））を備えているため、筐体３０内への塵埃の侵入を防止しながらも、電動作動器１０の各部、特に電磁石３５の過度な温度上昇が防止できる。 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.
　図４は、本実施例１における可撓性のカバー部材３２および操作レバー１１に固定される板状部材３３の位置関係を示す、電動作動器１０の上面図である。図４において、板状部材３３は破線で示す。なお、図４において、電動作動器は待機状態にある。 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. In FIG. 4, the plate member 33 is indicated by a broken line. In addition, in FIG. 4, the electric actuator is in a standby state.
　板状部材３３の平面部は、開口部Ｂ（図４）の直下に位置する。さらに、板状部材３３の平面部は、開口部Ｂ（図３）の直下の領域から、カバー部材３２もしくは開口部Ｂ（図３）の長手方向もしくは送りねじ３６の長手方向に垂直な方向に広がっている。このため、板状部材３３は、操作レバー１１が接続される可動部材３４上および可動部材３４に隣接する送りねじ３６の一部を覆っている。したがって、これら機構部に塵埃や異物などが付着したり接触したりすることが確実に防止される。 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.
　また、図４に示すように、カバー部材３２のスリットＳ（図３参照）の長さ方向が、送りねじ３６の軸方向に沿っている。このため、カバー部材３２は、図４における操作レバー１１の左右方向の動きを妨げない。すなわち、カバー部材３２は、待機状態から制動状態に移行する場合の操作レバー１１の動きだけでなく、待機状態に復帰する場合の操作レバー１１の動きも妨げない。 Further, as shown in FIG. 4, 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.
　図５は、本実施例１における筐体３０が備える開口部２０１の一例を示す筐体３０の側面図である。 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.
　図５の例では、筐体３０の側面において、矩形状の開口部２０１が一つ設けられている。開口部２０１は、防塵フィルタ１０１によって塞がれている。したがって、空気は開口部２０１を通るが、塵埃は、防塵フィルタ１０１によって、筐体３０内への侵入が妨げられる。 In the example of FIG. 5, 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 .
　図６は、本実施例１における筐体３０が備える開口部２０１の他の例を示す筐体３０の側面図である。 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.
　図６の例では、筐体３０の側面において、スリット状の開口部２０１が複数設けられている。開口部２０１は、防塵フィルタ１０１によって塞がれている。したがって、空気は各開口部２０１を通るが、塵埃は、防塵フィルタ１０１によって、筐体３０内への侵入が妨げられる。 In the example of FIG. 6, 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 .
　なお、筐体３０の上部における開口部２０２の形状も、開口部２０１と同様である。なお、開口部の形状は、矩形状やスリット状に限らず、円形など、他の形状でもよい。 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.
　上述のように、本実施例１によれば、電動操作器の温度上昇を抑制しながら、電動作動器の機構部への塵埃や異物の付着や接触を防止できる。これにより、設置環境における電動作動器の動作の信頼性を向上することができる。したがって、非常止め装置の動作、並びにエレベータ装置の非常止め動作の信頼性が向上する。 As described above, according to 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.
　なお、防塵フィルタ１０１，１０２のような防塵部材は、複数の換気孔の内、塵埃が侵入しやすい換気孔、たとえば、吸気側となる換気孔のみに設けられてもよい。この場合、筐体３０の外部表面において、防塵部材を備えない換気孔に隣接して、ガラリ、ルーバ、ひさし部などの簡易的な防塵手段を設けてもよい。 It should be noted that 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. In this case, on the outer surface of the housing 30, 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.
　次に、本発明の実施例２について、図７～９を用いて説明する。なお、主に、実施例１と異なる点について説明する。 Next, Example 2 of the present invention will be described with reference to FIGS. Note that differences from the first embodiment will be mainly described.
　図７は、本発明の実施例２であるエレベータ装置の概略構成図である。 FIG. 7 is a schematic configuration diagram of an elevator apparatus that is Embodiment 2 of the present invention.
　本実施例２においては、図７に示すように、筐体３０の換気孔となる筐体３０の開口部に換気パイプ３０１が設けられている。 In the second embodiment, as shown in FIG. 7, 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.
　図８は、本実施例２における電動作動器１０の、筐体３０内に格納される機構部を示し、図７の設置状態における正面図である。なお、図８において、非常止め装置は非作動状態であり、電動作動器１０は待機状態にある。すなわち、エレベータ装置は、通常の運転状態である。 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. In FIG. 8, 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.
　換気パイプ３０１の一方の開口端が、筐体３０の側面に位置する開口部２０１に接続されている。換気パイプ３０１は、開口部２０１から水平方向に延び、さらに、下方へ曲がり、乗りかご１の側面に沿って下方へ延びている。したがって、空気の取り込み口となる換気パイプ３０１の他方の開口端は、昇降路の下方を向くとともに、開口部２０１の下方に位置する。なお、開口部２０１は、乗りかご１の側面に隣接しているので、換気パイプ３０１の長さを低減できる。 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.
　換気パイプ３０１によって、開口部２０１から開口部２０２への空気の流れ（Ｆ）が促進されるので、放熱性が向上する。特に、ドラフト現象による昇降路内における下方から上方に向かって流れる空気が、下方を向く換気パイプ３０１の開口端から取り込まれ、開口部２０１から筐体３０内に取り込まれ、電磁石３５の発熱を吸収して、開口部２０２から筐体３外に排出される。これにより、電磁石３５の発熱が、効率よく筐体３０外に放熱される。 The ventilation pipe 301 promotes the air flow (F) from the opening 201 to the opening 202, thereby improving heat dissipation. In particular, 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 . As a result, the heat generated by the electromagnet 35 is efficiently radiated to the outside of the housing 30 .
　図９は、本実施例２における筐体３０が備える開口部２０１の一例を示す筐体３０の側面図である。 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.
　図９に示すように、本実施例２における開口部２０１は、換気パイプ３０１の開口端の形状に合わせて、円形である。円形の開口部２０１は、防塵フィルタ１０１によって塞がれている。したがって、換気パイプ３０１からの空気は開口部２０１を通るが、塵埃は、防塵フィルタ１０１によって、筐体３０内への侵入が妨げられる。 As shown in FIG. 9, 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 .
　換気パイプ３０１の開口端の円形の縁は、開口部２０１の円形の縁に対して、同心円状に配置され、外円となる。すなわち、換気パイプ３０１は、開口部２０１が換気パイプ３０１外にはみ出さないように、筐体３０の側面の開口部２０１に接続される。したがって、開口部２０１の全体が、換気パイプ３０１からの空気の取り込み口となる。 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 .
　なお、本実施例２における筐体３０の上部における開口部２０２の構成は、実施例１と同様である。本実施例２における開口部２０２の形状は、矩形状やスリット状（図５，６）でもよいし、円形などの他の形状でもよい。 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.
　上述の本実施例２によれば、電動作動器１０の放熱性を向上しながら、電動作動器１０の機構部への塵埃や異物の付着や接触を防止できる。これにより、設置環境における電動作動器の動作の信頼性が向上する。したがって、非常止め装置の動作、並びにエレベータ装置の非常止め動作の信頼性が向上する。 According to 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.
　なお、本発明は前述した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、前述した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、実施例の構成の一部について、他の構成の追加・削除・置き換えをすることが可能である。 It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications. For example, 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. Moreover, it is possible to add, delete, or replace a part of the configuration of the embodiment with another configuration.
　例えば、電動作動器１０は、乗りかご１の上方部のほか、下方部や側方部に設けられてもよい。また、電動作動器は、リニアアクチュエータを備えるものでもよい。 For example, 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.
　また、エレベータ装置は、機械室を有するものでもよいし、いわゆる機械室レスエレベータでもよい。 Also, the elevator apparatus may have a machine room or may be a so-called machine room-less elevator.
　また、図２，８に示す、開口部２０２および防塵フィルタ１０２から構成される換気孔にファンを設け、強制的に放熱してもよい。 Also, 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.
１…乗りかご、２…非常止め装置、４…ガイドレール、１０…電動作動器、１１…操作レバー、１２…駆動軸、１３…駆動ばね、１４…固定部、１５…押圧部材、１６…作動片、１７…接続片、１８…作動片、１９…作動軸、２０…作動軸、２１…引上げロッド、３０…筐体、３１…筐体カバー、３２…カバー部材、３３…板状部材、３４…可動部材、３５…電磁石、３６…送りねじ、３７…モータ、３８…ブラケット、４０…基板、４１…支持部材、４２…支持部材、５０…クロスヘッド、６０…位置調整器、１０１，１０２…防塵フィルタ、２０１，２０２…開口部、３０１…換気パイプ DESCRIPTION OF SYMBOLS 1... Car, 2... Emergency stop device, 4... Guide rail, 10... Electric actuator, 11... Operation lever, 12... Drive shaft, 13... Drive spring, 14... Fixed part, 15... Pressing member, 16... Operation Piece 17 Connecting piece 18 Working piece 19 Working shaft 20 Working shaft 21 Lifting rod 30 Case 31 Case cover 32 Cover member 33 Plate member 34 Movable member 35 Electromagnet 36 Feed screw 37 Motor 38 Bracket 40 Substrate 41 Supporting member 42 Supporting member 50 Crosshead 60 Position adjuster 101, 102 Dust filter, 201, 202... opening, 301... ventilation pipe

Claims (9)

  1. 　乗りかごと、
    　前記乗りかごに設けられる非常止め装置と、
    　前記乗りかごに設けられ、前記非常止め装置を動作させる電動作動器と、
    を備えるエレベータ装置において、
    　前記電動作動器は、
    　筐体と、
    　前記筐体の内部に位置する機構部と、
    を備え、
    　前記筐体は、第１の換気孔および第２の換気孔を有することを特徴とするエレベータ装置。     car and
    a safety device provided in the car;
    an electric actuator provided in the car for operating the safety device;
    In an elevator installation comprising
    The electric actuator is
    a housing;
    a mechanical unit located inside the housing;
    with
    An elevator apparatus, wherein the housing has a first ventilation hole and a second ventilation hole.
  2. 　請求項１に記載のエレベータ装置において、
    　前記第１の換気孔および前記第２の換気孔の少なくとも一方は、防塵部材を有することを特徴とするエレベータ装置。     The elevator installation of claim 1, wherein
    At least one of the first ventilation hole and the second ventilation hole has a dustproof member.
  3. 　請求項１に記載のエレベータ装置において、
    　前記筐体において、前記第１の換気孔は、前記第２の換気孔よりも下方に位置することを特徴とするエレベータ装置。     The elevator installation of claim 1, wherein
    The elevator apparatus, wherein the first ventilation hole is positioned below the second ventilation hole in the housing.
  4. 　請求項１に記載のエレベータ装置において、
    　前記第１の換気孔は前記筐体の側面に位置し、前記第２の換気孔は前記筐体の上面に位置することを特徴とするエレベータ装置。     The elevator installation of claim 1, wherein
    An elevator apparatus, wherein the first ventilation hole is located on the side surface of the housing, and the second ventilation hole is located on the top surface of the housing.
  5. 　請求項１に記載のエレベータ装置において、
    　前記筐体は、前記第１の換気孔に接続される換気パイプを備えることを特徴とするエレベータ装置。     The elevator installation of claim 1, wherein
    An elevator apparatus, wherein the housing includes a ventilation pipe connected to the first ventilation hole.
  6. 　請求項５に記載のエレベータ装置において、
    　前記換気パイプの一方の開口端が前記第１の換気孔に接続され、
    　前記換気パイプの他方の開口端は前記第１の換気孔の下方に位置することを特徴とするエレベータ装置。     In the elevator installation according to claim 5,
    one open end of the ventilation pipe is connected to the first ventilation hole;
    The elevator apparatus, wherein the other open end of the ventilation pipe is positioned below the first ventilation hole.
  7. 　請求項５に記載のエレベータ装置において、
    　前記換気パイプの一方の開口端が前記第１の換気孔に接続され、
    　前記換気パイプの他方の開口端は昇降路の下方を向くことを特徴とするエレベータ装置。     In the elevator installation according to claim 5,
    one open end of the ventilation pipe is connected to the first ventilation hole;
    An elevator apparatus, wherein the other open end of the ventilation pipe faces downward in the hoistway.
  8. 　請求項１に記載のエレベータ装置において、
    　前記電動作動器は、前記機構部に接続され、前記筐体の内部から、前記筐体の外部に延びる操作レバーを備え、
    　前記操作レバーは、前記筐体における開口部を通り、
    　前記筐体は、前記開口部を覆うカバー部材を有し、
    　前記操作レバーは、前記カバー部材に挿通されていることを特徴とするエレベータ装置。     The elevator installation of claim 1, wherein
    The electric actuator includes an operation lever connected to the mechanical portion and extending from the inside of the housing to the outside of the housing,
    The operation lever passes through an opening in the housing,
    The housing has a cover member that covers the opening,
    An elevator apparatus, wherein the operating lever is inserted through the cover member.
  9. 　請求項１に記載のエレベータ装置において、
    　前記電動作動器の前記機構部は、
    　可動部材と、
    　前記電動作動器の待機状態において、前記可動部材を吸引する電磁石と、
    　前記電磁石が備えるナット部と螺合する送りねじと、
    　前記送りねじを駆動するモータと、
    を備えることを特徴とするエレベータ装置。     The elevator installation of claim 1, wherein
    The mechanical portion of the electric actuator includes:
    a movable member;
    an electromagnet that attracts the movable member in a standby state of the electric actuator;
    a feed screw screwed with the nut portion of the electromagnet;
    a motor that drives the feed screw;
    An elevator system comprising:
PCT/JP2021/013024 2021-03-26 2021-03-26 Elevator apparatus WO2022201529A1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0254286U (en) * 1988-10-13 1990-04-19
WO2005115905A1 (en) * 2004-05-27 2005-12-08 Mitsubishi Denki Kabushiki Kaisha Elevator controller
JP2009046274A (en) * 2007-08-22 2009-03-05 Mitsubishi Electric Building Techno Service Co Ltd Hoisting/lowering preventive device and elevator device
CN105329737A (en) * 2015-10-28 2016-02-17 上海和蕴机电科技有限公司 Electric control falling-preventing system, carrying platform system and control method of electric control falling-preventing system
CN206673426U (en) * 2017-04-26 2017-11-24 浙江卓松电气有限公司 A kind of low-voltage distribution cabinet
CN110526094A (en) * 2019-09-26 2019-12-03 西继迅达（许昌）电梯有限公司 The counterweight frame of having electronic lifting safety tongs
JP2020072240A (en) * 2018-11-02 2020-05-07 株式会社東芝 Electronic device housing and cover of electronic device housing
WO2020110437A1 (en) * 2018-11-28 2020-06-04 株式会社日立製作所 Emergency stop device and elevator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0254286U (en) * 1988-10-13 1990-04-19
WO2005115905A1 (en) * 2004-05-27 2005-12-08 Mitsubishi Denki Kabushiki Kaisha Elevator controller
JP2009046274A (en) * 2007-08-22 2009-03-05 Mitsubishi Electric Building Techno Service Co Ltd Hoisting/lowering preventive device and elevator device
CN105329737A (en) * 2015-10-28 2016-02-17 上海和蕴机电科技有限公司 Electric control falling-preventing system, carrying platform system and control method of electric control falling-preventing system
CN206673426U (en) * 2017-04-26 2017-11-24 浙江卓松电气有限公司 A kind of low-voltage distribution cabinet
JP2020072240A (en) * 2018-11-02 2020-05-07 株式会社東芝 Electronic device housing and cover of electronic device housing
WO2020110437A1 (en) * 2018-11-28 2020-06-04 株式会社日立製作所 Emergency stop device and elevator
CN110526094A (en) * 2019-09-26 2019-12-03 西继迅达（许昌）电梯有限公司 The counterweight frame of having electronic lifting safety tongs

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