WO2023195124A1 - Dispositif de porte d'ascenseur et ascenseur - Google Patents

Dispositif de porte d'ascenseur et ascenseur Download PDF

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Publication number
WO2023195124A1
WO2023195124A1 PCT/JP2022/017249 JP2022017249W WO2023195124A1 WO 2023195124 A1 WO2023195124 A1 WO 2023195124A1 JP 2022017249 W JP2022017249 W JP 2022017249W WO 2023195124 A1 WO2023195124 A1 WO 2023195124A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
engaging
engagement
claw
lock lever
Prior art date
Application number
PCT/JP2022/017249
Other languages
English (en)
Japanese (ja)
Inventor
康平 今村
真介 石塚
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/JP2022/017249 priority Critical patent/WO2023195124A1/fr
Publication of WO2023195124A1 publication Critical patent/WO2023195124A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors

Definitions

  • the present invention relates to an elevator door device and an elevator.
  • a door lock mechanism is provided for each of the hall door provided on the landing side and the car door provided on the car side to lock and release the opening/closing operation of the door.
  • the door lock mechanism on the landing door side is composed of a fixed hook member fixed on the hoistway side, and a lock lever provided on the landing door side and pivoted toward the fixed hook member side.
  • the fixed hook member has a hook portion that engages with the lock lever at the end on the lock lever side.
  • the hook portion has a vertical engagement surface that extends perpendicularly to the horizontal surface, and when the engagement claw provided at the tip of the lock lever engages with this engagement surface, the door opens and closes. can be locked.
  • Patent Document 1 in an interlock mechanism composed of a fixed hook and a lock lever, the shape of at least one of the engaging surface of the fixed hook or the engaging surface of the engaging claw of the lock lever is changed.
  • a technique for forming a curved surface shape is disclosed.
  • at least one of the engagement surface of the fixed hook and the engagement surface of the engagement claw of the lock lever is made into a curved shape, so that the engagement surface of the engagement claw and the engagement surface of the fixed hook portion is made curved. The effect of reducing the excessive tensile force that occurs when the gap between the two is reduced is described.
  • the present invention provides an elevator door device and an elevator that have a door locking mechanism that reduces the risk of tampering.
  • the elevator door device of the present invention solves the above problems and is rotatably supported by a door part provided movably in the opening/closing direction and a rotating shaft provided in the door part, and the rotating shaft is and a lock lever having an engaging pawl at the opposite end.
  • the fixed hook portion has an engaging piece provided so as to be able to engage with the engaging claw, and one side of the engaging surface facing the engaging claw side of the engaging piece.
  • the shape when viewed from the direction along the axial direction of the rotation shaft is configured to have the same shape as the rotation locus of the peak portion of the engagement claw located at the position closest to the rotation axis.
  • the elevator of the present invention includes the elevator door device described above.
  • the risk of the lock not being unlocked is reduced.
  • FIG. 1 is a schematic configuration diagram of an elevator door device according to a first embodiment of the present invention.
  • An enlarged view of the door lock mechanism 10 according to the first embodiment is shown.
  • An enlarged view of the main parts of the door lock mechanism 10 according to the first embodiment is shown.
  • a schematic configuration diagram of a door lock mechanism according to a comparative example is shown.
  • FIG. 3 shows a schematic configuration diagram of a door lock mechanism according to a second embodiment of the present invention.
  • FIG. 1 is a schematic configuration diagram of an elevator door device according to a first embodiment (hereinafter referred to as the present embodiment) of the present invention.
  • a landing door device hereinafter referred to as a landing door device 100
  • a building entrance will be described as an example.
  • FIG. 1 is a front view of a hall door device 100 viewed from the car side of an elevator that moves up and down in a hoistway.
  • the configuration of the landing door device 100 of this embodiment will be explained using FIG. 1.
  • the landing door device 100 includes a pair of landing doors 300, 300, a landing door opening/closing mechanism 200, and a door locking mechanism 10.
  • a pair of landing doors 300, 300 (corresponding to the door section of the present invention) are provided at an entrance where an elevator car on the building side stops, and are provided with a landing door opening/closing mechanism provided at the upper end of the entrance in the vertical direction. 200 so as to be openable and closable.
  • a landing side door sill 213 that supports the pair of landing doors 300, 300 is provided at the lower end of the entrance in the vertical direction. The pair of landing doors 300, 300 are opened and closed in the left-right direction along the extending direction of the landing door sill by the landing door opening/closing mechanism 200.
  • the landing door opening/closing mechanism 200 includes a building side door rail 215, a pair of door hangers 221, 221, a first pulley 216, a second pulley 218, and a transmission belt 217.
  • the building side door rail 215 is a rail member on which a moving roller 224 (described later) can rotate and move, and is provided above the landing doors 300, 300 in the vertical direction.
  • the building side door rail 215 is provided so as to extend in a direction along the opening/closing direction of the pair of landing doors 300, 300.
  • the pair of door hangers 221, 221 are provided at the upper ends of the pair of landing doors 300, 300 in the vertical direction, respectively.
  • a pair of moving rollers 224, 224 are rotatably attached to the door hangers 221, 221, respectively.
  • the moving rollers 224, 224 are slidably engaged with the building side door rail 215.
  • first connecting member 222 and a second connecting member 223 are provided on each of the two door hangers 221, 221.
  • the first connecting member 222 and the second connecting member 223 are connected to a transmission belt 217, which will be described later.
  • one of the two door hangers 221, 221 is provided with a lock lever 11 that constitutes a door lock mechanism 10, which will be described later.
  • the first pulley 216 is provided on one side in the opening/closing direction of the landing doors 300, 300, and the second pulley 218 is provided on the other side in the opening/closing direction of the landing doors 300, 300. That is, the first pulley 216 and the second pulley 218 are provided above the landing doors 300, 300, respectively, at positions sandwiching the pair of landing doors 300, 300.
  • a transmission belt 217 is wound around the first pulley 216 and the second pulley 218.
  • the transmission belt 217 is an endless belt whose longitudinal ends are connected. Therefore, the upper and lower parts of the transmission belt 217 in the vertical direction rotate in opposite directions.
  • a first connecting member 222 is connected to the lower part of the transmission belt 217 on the return side, and a second connecting member 223 is connected to the upper part of the transmission belt 217 on the outgoing side.
  • the first connecting member 222 is fixed to one door hanger 221, and the second connecting member 223 is fixed to the other door hanger 221.
  • the door lock mechanism 10 includes a lock lever 11 and a fixed hook portion 15 configured to be engageable with the lock lever 11.
  • the door lock mechanism 10 is provided above the pair of landing doors 300, 300 in the vertical direction.
  • the door lock mechanism 10 is a mechanism that locks the landing doors 300, 300 in the closed state.
  • the present invention is characterized by the door lock mechanism 10.
  • FIG. 2 shows a schematic configuration diagram of the door lock mechanism 10 of this embodiment
  • FIG. 3 shows an enlarged view of the main parts of the door lock mechanism 10 of this embodiment.
  • the lock lever 11 is a plate member that includes a bearing part 13, an engaging pawl 12 provided on the opposite end side of the bearing part 13, and a connecting part 14 that connects the bearing part 13 and the engaging pawl 12. It is configured.
  • the bearing portion 13 is rotatably supported by a rotation shaft 20 fixed to one of the pair of door hangers 221, 221.
  • the connecting portion 14 extends from the bearing portion 13 toward the other door hanger 221 side.
  • the engaging pawl 12 is provided on the distal end side of the connecting portion 14 so as to protrude toward the fixed hook portion 15 in the rotation direction.
  • the surface of the engaging claw 12 on the rotating shaft 20 side becomes a claw-side engaging surface 12a that faces the engaging piece 16 of the fixed hook portion 15 when engaged with the fixed hook portion 15, which will be described later.
  • the portion of the claw-side engagement surface 12a of the engagement claw 12 that is closest to the rotation axis 20 (in this embodiment, the tip portion of the engagement claw 12) is referred to as a peak portion P.
  • the lock lever 11 Since the lock lever 11 is rotatably supported with respect to the rotation shaft 20, it rotates toward and away from the fixed hook portion 15.
  • the rotation locus of the peak portion P of the engaging claw 12 is as shown by the chain line in FIG. 3 .
  • the claw-side engagement surface 12a of the engagement claw 12 is formed of a concave curved surface, but may be formed of a flat surface, or may be formed of a convex curved surface protruding toward the rotation shaft 20 side. may be done.
  • the claw-side engaging surface 12a is composed of a convex curved surface that protrudes toward the rotating shaft 20 side, the peak portion P is not the tip portion of the engaging claw 12 but the peak portion P of the convex curved surface. , is set at the part closest to the rotation axis 20.
  • the fixed hook part 15 is attached to the inner wall side of the hoistway on the upper side of the landing doors 300, 300 in the vertical direction, or to the other door of the pair of door hangers 221, 221, which is different from the side on which the lock lever 11 is provided. It is fixed to the hanger 221.
  • the fixed hook portion 15 has an engagement piece 16.
  • the engagement piece 16 is provided at the end of the fixed hook portion 15 on the lock lever 11 side.
  • the engagement piece 16 projects upward in the vertical direction.
  • the surface of the engagement piece 16 opposite to the end surface on the lock lever 11 side becomes a one-sided engagement surface 16a that engages with the engagement claw 12 of the lock lever 11.
  • the one-side engagement surface 16a of the engagement piece 16 is formed of a curved surface, and when viewed from a direction perpendicular to the rotation surface of the lock lever 11 (direction along the rotation axis 20).
  • the shape is configured to be the same as the rotation locus of the peak portion P of the engaging claw 12. That is, the curved surface of the one-sided engagement surface 16a has a curvature whose radius of curvature is the distance from the center of the rotation shaft 20 to the peak portion P. Note that the rotation locus of the peak portion P of the engagement claw 12 is determined by the distance from the center of the rotation shaft 20 to the peak portion P.
  • the one-side engagement surface 16a of the engagement piece 16 is configured to have the same shape as the rotation locus of the peak portion P of the claw-side engagement surface 12a of the engagement claw 12. Therefore, even if the gap between the peak part P of the engagement pawl 12 of the lock lever 11 and the one-side engagement surface 16a of the engagement piece 16 of the fixed hook part 15 is small or zero, the lock lever 11 can be rotated. When moving, the rotation locus of the engaging claw 12 does not interfere with the engaging piece 16.
  • FIG. 4 shows a conventional door lock mechanism 50 according to a comparative example.
  • parts having the same configuration as the door lock mechanism 10 of this embodiment are given the same reference numerals, and redundant explanation will be omitted.
  • the configuration of the fixed hook portion 51 is different from the fixed hook portion 15 in this embodiment.
  • one side of the engagement surface 52a of the engagement piece 52 has a planar shape extending in the vertical direction.
  • the gap w between the one-side engagement surface 52a and the claw-side engagement surface 12a may be smaller than expected.
  • the engagement piece 52 of the fixed hook portion 51 is located on the rotation locus of the lock lever 11, and the engagement claw 12 and the engagement piece 52 interfere with each other. There is a risk that the lock will be unlocked.
  • the one-side engagement surface 16a has the same shape as the rotation locus of the lock lever 11, the contact point between the peak portion P and the one-side engagement surface 16a is the rotation locus of the lock lever 11. Come on top. Therefore, even if a door-opening force is applied to the landing doors 300, 300 during locking, the unlocking moment becomes 0, so that the door locking function is not impaired.
  • a force (closer force) acting in the door closing direction is applied to the landing doors 300, 300 when the doors are closed.
  • the conventional door lock mechanism 50 according to the comparative example, when the landing doors 300, 300 are closed, there is a predetermined distance between the engagement piece 52 of the fixed hook part 51 and the engagement claw 12 of the lock lever 11. It is configured to have a gap w, and because of this gap w, the lock can be unlocked without interference between the engaging claw 12 of the lock lever 11 and the engaging piece 52 of the fixed hook part 51. Therefore, if the closing force weakens and the gap w between the engaging claw 12 of the lock lever 11 and the engaging piece 52 of the fixed hook part 51 becomes smaller than a predetermined value, there is a possibility that the lock will not be opened. Therefore, with the conventional door lock mechanism 50, it was not possible to set the closing force low.
  • the door lock mechanism 10 of the present embodiment the door is not unlocked even when the distance between the engaging pawl 12 of the lock lever 11 and the engaging piece 52 of the fixed hook portion 51 becomes zero. This problem can be prevented. Therefore, in the landing doors 300, 300, the closing force can be set low, and costs can be reduced.
  • FIG. 5 is an enlarged view of main parts of the door lock mechanism 40 according to the second embodiment.
  • parts corresponding to those in FIG. 2 are designated by the same reference numerals, and redundant explanation will be omitted.
  • the claw side engagement surface 42a of the engagement claw 42 of the lock lever 41 has a concave curved surface when viewed from a direction perpendicular to the rotation surface. is configured to have the same shape as the rotation locus of the peak portion P of the engaging claw 42. That is, the claw-side engagement surface 42a and the one-side engagement surface 16a are configured in a shape that allows them to engage with each other without a gap, and when the lock lever 41 rotates, the engagement claw 42 and the engagement piece 16 so as not to interfere with each other.
  • the door lock mechanism that locks the landing door provided at the entrance/exit of the car has been described as an example, but the car door provided at the entrance/exit of the car has been described as an example.
  • the configuration of the present invention may be applied to a door lock mechanism that locks the door.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

La présente invention comprend : un levier de verrouillage comprenant une griffe de mise en prise ; et une partie crochet fixe comprenant une pièce de mise en prise pouvant venir en prise avec la griffe de mise en prise. En prise avec la griffe de mise en prise et la pièce de mise en prise, la forme de la surface de mise en prise latérale située du côté de la griffe de mise en prise de la pièce de mise en prise, telle que vue dans la direction le long de la direction axiale de l'axe de pivotement, est configurée pour être identique à la trajectoire de pivotement de la partie pointe située le plus près de l'axe de pivotement de la griffe de mise en prise.
PCT/JP2022/017249 2022-04-07 2022-04-07 Dispositif de porte d'ascenseur et ascenseur WO2023195124A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/017249 WO2023195124A1 (fr) 2022-04-07 2022-04-07 Dispositif de porte d'ascenseur et ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/017249 WO2023195124A1 (fr) 2022-04-07 2022-04-07 Dispositif de porte d'ascenseur et ascenseur

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WO2023195124A1 true WO2023195124A1 (fr) 2023-10-12

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PCT/JP2022/017249 WO2023195124A1 (fr) 2022-04-07 2022-04-07 Dispositif de porte d'ascenseur et ascenseur

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005067764A (ja) * 2003-08-20 2005-03-17 Mitsubishi Electric Corp エレベータ乗場扉の遮煙装置
JP2005280854A (ja) * 2004-03-26 2005-10-13 Toshiba Elevator Co Ltd エレベータ用ドア装置
WO2019211900A1 (fr) * 2018-05-01 2019-11-07 三菱電機株式会社 Dispositif de porte de cabine d'ascenseur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005067764A (ja) * 2003-08-20 2005-03-17 Mitsubishi Electric Corp エレベータ乗場扉の遮煙装置
JP2005280854A (ja) * 2004-03-26 2005-10-13 Toshiba Elevator Co Ltd エレベータ用ドア装置
WO2019211900A1 (fr) * 2018-05-01 2019-11-07 三菱電機株式会社 Dispositif de porte de cabine d'ascenseur

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