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WO2025069387A1 - Porte palière et ascenseur - Google Patents

Porte palière et ascenseur Download PDF

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Publication number
WO2025069387A1
WO2025069387A1 PCT/JP2023/035664 JP2023035664W WO2025069387A1 WO 2025069387 A1 WO2025069387 A1 WO 2025069387A1 JP 2023035664 W JP2023035664 W JP 2023035664W WO 2025069387 A1 WO2025069387 A1 WO 2025069387A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
hook
car
landing
closed state
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/JP2023/035664
Other languages
English (en)
Japanese (ja)
Inventor
聡志 伊野宮
清一 市毛
光志 米川
真介 石塚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Building Systems Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Building Systems Co Ltd
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 Hitachi Ltd, Hitachi Building Systems Co Ltd filed Critical Hitachi Ltd
Priority to JP2025522867A priority Critical patent/JPWO2025069387A1/ja
Priority to PCT/JP2023/035664 priority patent/WO2025069387A1/fr
Priority to CN202380075726.9A priority patent/CN120129648A/zh
Publication of WO2025069387A1 publication Critical patent/WO2025069387A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the present invention relates to a hall door and elevator equipped with a locking mechanism.
  • the landing door on the landing side of an elevator is provided with a locking mechanism. This means that the landing door cannot be manually opened from the landing side unless it is unlocked. As a result, the landing door can prevent passengers from falling into the elevator shaft.
  • a worker When performing elevator maintenance or inspection, or if someone is trapped inside the car, a worker unlocks the locking mechanism from the hall side and manually opens the hall door. During elevator maintenance work, a worker may open the hall door and enter the car.
  • Patent Document 1 discloses an elevator equipped with a first door locking device and a second door locking device arranged next to each other in the vertical direction.
  • the first door locking device locks the landing side door in a closed state.
  • the second door locking device limits the opening width of the landing side door to a second opening width that is smaller than the first opening width in a fully open state.
  • the elevator disclosed in Patent Document 1 limits the opening width of the landing side door to the second opening width, making it possible to confirm that the elevator car is located at the boarding floor.
  • the objective of this study is to take the above problems into consideration and provide a landing door and elevator that can reduce the number of parts in a locking mechanism that allows two-stage locking.
  • a landing door reflecting one aspect of the present invention includes a door body that slides horizontally to open and close an entrance communicating with an elevator shaft, and a lock mechanism.
  • the lock mechanism locks the door body in a door-closed state in which the door body is closed and in a door-opening intermediate state in which the door body is opened a predetermined distance from the door-closed state.
  • the lock mechanism includes a hook member, a hook receiving portion, a biasing member, a first unlocking portion, and a second unlocking portion.
  • the hook member has a first hook and a second hook, and rotates about a rotation axis perpendicular to the sliding direction and the up-down direction of the door body.
  • an elevator embodying one aspect of the present invention includes a car that moves up and down within a hoistway, and the above-mentioned landing door.
  • the landing door and elevator configured as described above can reduce the number of parts in the locking mechanism that allows for two-stage locking.
  • FIG. 1 is a schematic configuration diagram showing an elevator according to one embodiment.
  • FIG. 2 is a side view showing a state in which an elevator car according to an embodiment stops at an arbitrary floor.
  • FIG. 2 is a diagram showing an elevator car door according to one embodiment.
  • FIG. 2 is a front view of a hall door according to an embodiment, seen from the car side.
  • FIG. 2 is a perspective view showing a hall lock mechanism according to one embodiment.
  • FIG. 2 is a perspective view showing a state in which the hook receiving portion is removed from the hall lock mechanism according to one embodiment.
  • FIG. 2 is a front view showing a hall lock mechanism according to one embodiment.
  • FIG. 2 is a front view showing an unlocked state of the car-side locking mechanism of an elevator according to one embodiment.
  • FIG. 2 is a front view showing the door-opening operation of an elevator car door in one embodiment.
  • FIG. 13 is a diagram showing the landing lock mechanism when the door body of the landing door is in a door-closed state according to an embodiment.
  • FIG. 13 is a diagram showing the hall lock mechanism when the door body of the hall door is moved to an unlocked position according to an embodiment.
  • FIG. 13 is a diagram showing the landing lock mechanism when the door body of the landing door is in a half-open state according to one embodiment.
  • Fig. 1 is a schematic diagram showing an example of the configuration of an elevator according to an embodiment.
  • Fig. 2 is a side view showing a state in which a car stops at an arbitrary floor.
  • Fig. 3 is a front view of a car door of the car as seen from the landing side.
  • elevator 1 is a so-called machine room-less elevator that does not have a machine room above the hoistway 100 formed within an architectural structure.
  • the elevator of the present invention is not limited to machine room-less elevators, and may be an elevator that has a machine room above the hoistway 100.
  • the elevator 1 has a car 110 that rises and falls in the elevator shaft 100, a hoist 120, a counterweight 130, a first driven pulley 140, a second driven pulley 150, and a rope 170.
  • a lifting pulley 111 is provided at the bottom of the car 110.
  • a rope 170 is wound around the lifting pulley 111. A detailed description of the car 110 will be given later.
  • a weight-side pulley 131 is provided on the upper part of the counterweight 130.
  • a rope 170 is wound around the weight-side pulley 131.
  • the hoist 120 is disposed at the bottom of the elevator shaft 100. The hoist 120 raises and lowers the car 110 and the counterweight 130 in a bucket-like manner via the rope 170.
  • the drive of the hoist 120 is controlled by a control unit (not shown).
  • the first driven pulley 140 and the second driven pulley 150 are rotatably attached to the top of the elevator shaft 100.
  • One end and the other end of the rope 170 are fixed to the top of the elevator shaft 100.
  • the rope 170 is attached from the weight side pulley 131 provided on the counterweight 130 to the first driven pulley 140, and then wound around the hoist 120, the second driven pulley 150, and the lifting pulley 111 of the car 110, in that order.
  • the car 110 and the counterweight 130 move up and down within the elevator shaft 100 in response to the drive of the hoist 120.
  • the direction in which the car 110 and the counterweight 130 move up and down is referred to as the up and down direction.
  • the building structure also has landings 101 where the elevator car 110 stops at each floor.
  • the landings 101 are formed with doorways 102 that communicate with the elevator shaft 100. People and objects enter and exit the elevator car 110 through the doorways 102.
  • Landing door 210 is disposed at the doorways 102. The landing door 210 opens and closes the doorway 102.
  • the landing door 210 has a pair of door bodies 211A, 211B, a landing side door unit 212, and a landing side door sill 213.
  • the landing side door unit 212 is disposed at the top end of the entrance/exit 102 in the vertical direction.
  • the landing side door sill 213 is disposed at the bottom end of the entrance/exit 102 in the vertical direction.
  • the landing side door unit 212 and the landing side door sill 213 support the pair of door bodies 211A, 211B so that they can slide horizontally. The configuration of the landing side door unit 212 will be described later.
  • the car 110 has a car chamber 10 where people and objects get on and off, a pair of car doors 11A, 11B, a car side door unit 12, and a car side door sill 13 (see Fig. 2).
  • An opening that is opened and closed by the pair of car doors 11A, 11B is provided on one side of the car chamber 10. People and objects enter and exit the car chamber 10 through the opening.
  • the car side door unit 12 is disposed at the top end in the vertical direction of the opening of the car chamber 10.
  • the car side door sill 13 is disposed at the bottom end in the vertical direction of the opening of the car chamber 10.
  • the car side door unit 12 and the car side door sill 13 support a pair of car doors 11A, 11B so that they can slide horizontally.
  • the car side door unit 12 has a car side door rail 15, a drive unit 16 (see Figure 1), a transmission belt 17, and a driven roller 18.
  • the car side door rail 15 extends along the sliding direction of the pair of car doors 11A, 11B.
  • the drive unit 16 is disposed at one horizontal end of the car side door unit 12.
  • the driven roller 18 is disposed at the other horizontal end of the car side door unit 12.
  • a transmission belt 17 is wound around the drive shaft of the drive unit 16 and the driven roller 18.
  • the transmission belt 17 is formed in an endless shape with both ends connected in the longitudinal direction. When the drive shaft of the drive unit 16 rotates, the transmission belt 17 moves in a circular motion between the driven roller 18 and the drive shaft of the drive unit 16.
  • the transmission belt 17 is formed in a ring shape with the upper and lower parts moving in opposite directions in the horizontal direction.
  • a first connecting member 22, which will be described later, is connected to the lower part of the transmission belt 17.
  • a second connecting member 23, which will be described later, is connected to the upper part of the transmission belt 17.
  • the fixed hook member 34 and cam member 57 of the car side locking mechanism 30 (described later) are fixed to the car side door unit 12.
  • the fixed hook member 34 and cam member 57 are positioned above the first car door 11A in the up-down direction when the pair of car doors 11A, 11B are closed.
  • the pair of car doors 11A, 11B will be described.
  • the pair of car doors 11A, 11B are each formed in a rectangular shape.
  • a first door hanger 21A is attached to the top end portion of the first car door 11A in the vertical direction.
  • a second door hanger 21B is attached to the top end portion of the second car door 11B in the vertical direction.
  • a slider 14 is provided at the bottom end portion of the pair of car doors 11A, 11B in the vertical direction. The slider 14 slidably engages with a guide groove provided in the car-side door sill 13.
  • the first door hanger 21A and the second door hanger 21B each have a movable roller 24 rotatably supported thereon.
  • the movable roller 24 is rollably engaged with the car side door rail 15.
  • the first door hanger 21A has a first connecting member 22.
  • the first connecting member 22 protrudes upward from the top end of the first door hanger 21A in the vertical direction.
  • the first connecting member 22 is connected to the lower part of the transmission belt 17.
  • the second door hanger 21B has a second connecting member 23.
  • the second connecting member 23 protrudes upward from the top end of the second door hanger 21B in the vertical direction.
  • the second connecting member 23 is connected to the upper part of the transmission belt 17.
  • the door-opening direction is the direction in which the pair of car doors 11A, 11B approach each other along the car-side door rail 15.
  • the door-closing direction is the direction in which the pair of car doors 11A, 11B move away from each other along the car-side door rail 15.
  • the first car door 11A is provided with a safety shoe 25 and a car-side locking mechanism 30.
  • the safety shoe 25 is supported by the end of the first car door 11A on the door closing direction side, i.e., the door-stop side end 11a that approaches the second car door 11B.
  • the safety shoe 25 is formed of a long member that extends in the vertical direction.
  • the vertical length of the safety shoe 25 is set to be approximately the same as the vertical length of the first car door 11A.
  • the safety shoe 25 is supported on the doorstop side end 11a of the first car door 11A via a pair of link members so that it can move in the vertical direction and the opening and closing direction.
  • a detection unit (not shown) that detects movement of the safety shoe 25 is disposed near the link member that supports the safety shoe 25 at the door stop side end 11a of the first cage door 11A.
  • the detection unit detects the movement of the safety shoe 25.
  • the movement of the safety shoe 25 means that a load has been applied to the safety shoe 25.
  • the car-side locking mechanism 30 has a base plate 31, a first car-side engaging element 32, a locking-side hook member 33, a fixed hook member 34, a rotating shaft 35, a locking retaining member 39, and a pair of first link members 41A, 41B.
  • the car-side locking mechanism 30 also has a second car-side engaging element 52, a cam member 57, and a pair of second link members 61A, 61B.
  • the base plate 31 is formed in a generally flat plate shape.
  • the base plate 31 is fixed to the first door hanger 21A.
  • the door-opening direction of the first car door 11A is referred to as the door pocket side
  • the door-closing direction of the first car door 11A is referred to as the door stop side.
  • a pair of first link members 41A, 41B are disposed on the end of the base plate 31 on the door stop side.
  • the pair of first link members 41A, 41B is composed of a lower first link member 41A and an upper first link member 41B.
  • the lower first link member 41A is disposed at the lower end of the base plate 31 in the vertical direction.
  • the upper first link member 41B is disposed at the upper end of the base plate 31 in the vertical direction.
  • the lower first link member 41A and the upper first link member 41B are each rotatably supported on the base plate 31 via a link shaft 42.
  • a shaft portion 43 is disposed on each end of the pair of first link members 41A, 41B opposite the link shaft 42.
  • the first car side engaging element 32 is attached to the shaft portion 43 of the pair of first link members 41A, 41B. Therefore, the first car side engaging element 32 is movably supported on the base plate 31 via the pair of first link members 41A, 41B.
  • the first car side engaging element 32 is formed in an elongated shape that extends a predetermined length in the vertical direction.
  • a transmission part 36 is formed in the middle of the first car side engaging element 32 in the longitudinal direction. The transmission part 36 protrudes from the end of the first car side engaging element 32 on the door pocket side. The transmission part 36 is in contact with a transmission pin 37, which will be described later.
  • a first stopper 45 fixed to the base plate 31 is disposed near the lower first link member 41A.
  • the locked state of the car-side locking mechanism 30 refers to a state in which the car-side locking mechanism 30 locks the opening and closing operations of the pair of car doors 11A, 11B.
  • a number of second stoppers 46 fixed to the base plate 31 are arranged on the doorstop side of the first car side engaging element 32.
  • the second stoppers 46 are arranged at a predetermined distance from the first car side engaging element 32.
  • the pair of first link members 41A, 41B rotate and the first car side engaging element 32 moves toward the doorstop side, the first car side engaging element 32 abuts against the second stoppers 46.
  • the movement of the first car side engaging element 32 and the pair of first link members 41A, 41B is restricted by the second stoppers 46.
  • the pivot shaft 35 is disposed on the base plate 31 closer to the door pocket than the first cage-side engaging element 32.
  • the locking-side hook member 33 is rotatably supported on the pivot shaft 35.
  • the locking hook member 33 has a hook portion 33a, a pivot receiving portion 33b, a connection portion 33c, and an unlocking receiving portion 33d.
  • the pivot receiving portion 33b is supported rotatably on a pivot shaft 35.
  • a transmission pin 37 is disposed on the pivot receiving portion 33b below the pivot shaft 35 in the vertical direction and on the door stop side.
  • the transmission pin 37 is in contact with the transmission unit 36 provided on the first car side engaging element 32.
  • the first car side engaging element 32 moves downward in the vertical direction toward the door stop side via the pair of first link members 41A, 41B, the movement of the first car side engaging element 32 is transmitted to the transmission pin 37 via the transmission unit 36.
  • This causes the locking side hook member 33 to rotate counterclockwise (unlocking direction) in FIG. 3 around the pivot shaft 35.
  • connection portion 33c protrudes from the end of the pivot receiving portion 33b on the door stop side.
  • a hook portion 33a is formed on the end of the connection portion 33c opposite the pivot receiving portion 33b.
  • the hook portion 33a protrudes toward the door stop side beyond the first car side engaging element 32.
  • the unlocking receiving portion 33d protrudes upward from the top end of the door pocket side end of the rotating receiving portion 33b in the vertical direction.
  • the unlocking receiving portion 33d is positioned closer to the door pocket than the rotating shaft 35 that supports the rotating receiving portion 33b.
  • the unlocking receiving portion 33d engages with the unlocking lever 54, which will be described later.
  • the unlocking receiving portion 33d is pulled toward the door pocket side by the unlocking lever 54, the locking side hook member 33 rotates around the rotating shaft 35 and is displaced in the unlocking direction.
  • the locking retaining member 39 is disposed at the top end in the vertical direction of the connection portion 33c of the locking side hook member 33.
  • the locking retaining member 39 is disposed on the door stop side of the first cage side engaging element 32.
  • the locking retaining member 39 biases the locking side hook member 33 downward in the vertical direction, i.e., in the locking direction, via the connection portion 33c.
  • a compression coil spring is used as the locking and retaining member 39.
  • the locking and retaining member 39 is not limited to a compression coil spring, and various other elastic members such as leaf springs and rubber may also be used.
  • a pair of second link members 61A, 61B are arranged on the door pocket side end of the base plate 31.
  • the pair of second link members 61A, 61B is composed of a lower second link member 61A and an upper second link member 61B.
  • the lower second link member 61A is arranged at the lower end of the base plate 31 in the vertical direction.
  • the upper second link member 61B is arranged at the upper end of the base plate 31 in the vertical direction.
  • the lower second link member 61A and the upper second link member 61B are each rotatably supported on the base plate 31 via a link shaft 62.
  • a shaft portion 63 is disposed on each end of the pair of second link members 61A, 61B opposite the link shaft 62.
  • the second car side engaging element 52 is attached to the shaft portion 63. Therefore, the second car side engaging element 52 is movably supported on the base plate 31 via the pair of second link members 61A, 61B.
  • the second car side engaging element 52 is formed in an elongated shape that extends a predetermined length in the vertical direction.
  • the second car side engaging element 52 is arranged on the base plate 31 with a predetermined gap between it and the first car side engaging element 32.
  • the gap between the first car side engaging element 32 and the second car side engaging element 52 is set to be larger than the gap between the platform side engaging elements 235, 236 described below. This allows the platform side engaging elements 235, 236 to pass between the first car side engaging element 32 and the second car side engaging element 52 in the vertical direction.
  • a third stopper 65 fixed to the base plate 31 is disposed vertically below the upper second link member 61B.
  • the upper second link member 61B rotated clockwise abuts against the third stopper 65 (see FIG. 8). This restricts the rotational movement of the upper second link member 61B and also restricts the downward movement of the second car side engaging element 52 in the vertical direction.
  • a fourth stopper 66 fixed to the base plate 31 is disposed on the door pocket side of the second car side engaging element 52.
  • the pair of second link members 61A, 61B rotate and the second car side engaging element 52 moves toward the door pocket side, the second car side engaging element 52 abuts against the fourth stopper 66.
  • the movement of the second car side engaging element 52 and the pair of second link members 61A, 61B is restricted by the fourth stopper 66.
  • the upper end of the second car side engaging element 52 in the vertical direction protrudes upward in the vertical direction beyond the upper end of the first door hanger 21A.
  • a cam roller 53 is rotatably attached to the upper end of the second car side engaging element 52. When the pair of car doors 11A, 11B are closed, the cam roller 53 abuts against a cam member 57 fixed to the car side door unit 12.
  • the cam member 57 is formed in a generally arcuate shape, and the door pocket side of the first car door 11A is open and curved toward the door stop side.
  • the cam roller 53 abuts against the cam member 57, the position of the second car side engaging element 52 is held in the locked state shown in FIG. 3. That is, the second car side engaging element 52 is held in a position where the upper second link member 61B does not abut against the third stopper 65 and the second car side engaging element 52 does not abut against the fourth stopper 66.
  • the cam roller 53 moves away from the cam member 57, the second car side engaging element 52 moves downward in the vertical direction due to its own weight.
  • An unlocking lever 54 is fixed to the second car side engaging element 52.
  • the unlocking lever 54 is disposed between the cam roller 53 and the upper second link member 61B in the second car side engaging element 52.
  • the unlocking lever 54 protrudes from the second car side engaging element 52 toward the door stop side.
  • the unlocking lever 54 faces the unlocking receiving portion 33d of the locking side hook member 33 at an appropriate distance.
  • the unlocking lever 54 engages with the unlocking receiving portion 33d and pulls the unlocking receiving portion 33d toward the door pocket side.
  • FIG. 4 is a front view of the hall door 210 as seen from the car 110 side.
  • the platform side door unit 212 has a unit base 214, a platform side door rail 215, a first pulley 216, a second pulley 218, a transmission belt 217, door hangers 221A and 221B, and a platform side locking mechanism 230.
  • the unit base 214 is formed in a generally rectangular parallelepiped shape that is long in the sliding direction.
  • a landing side door rail 215, a first pulley 216, and a second pulley 218 are attached to the unit base 214.
  • the door hangers 221A, 221B are attached to the upper ends of the pair of door bodies 211A, 211B in the up-down direction.
  • the door hangers 221A, 221B have movable rollers 224 rotatably attached thereto.
  • the movable rollers 224 rollably engage with the platform side door rail 215.
  • the platform side door rail 215 extends along the sliding direction of the pair of door bodies 211A, 211B.
  • the door hanger 221A has a connecting member 222.
  • the connecting member 222 protrudes upward from the top end of the door hanger 221A in the vertical direction.
  • the door hanger 221B has a connecting member 223.
  • the connecting member 223 protrudes upward from the top end of the door hanger 221B in the vertical direction.
  • the door hanger 221A faces the first door hanger 21A of the car 110.
  • the door hanger 221A is provided with a platform-side locking mechanism 230. The configuration of the platform-side locking mechanism 230 will be described later.
  • the first pulley 216 is disposed on one side of the unit base 214 in the horizontal direction.
  • the second pulley 218 is disposed on the other side of the unit base 214 in the horizontal direction.
  • a transmission belt 217 is wound around the first pulley 216 and the second pulley 218.
  • the transmission belt 217 is formed in an endless shape with both ends in the longitudinal direction connected.
  • the transmission belt 217 is formed in a ring shape with the upper and lower parts moving in opposite directions to each other in the horizontal direction.
  • a connecting member 222 is connected to the lower part of the transmission belt 217.
  • a connecting member 223 is connected to the upper part of the transmission belt 217.
  • the landing side locking mechanism 230 has a hook member 231, a pivot shaft 232, a hook receiving portion 234, a first landing side engaging element 235, a second landing side engaging element 236, a base plate 237, a locking retaining member 239, and a stopper 241.
  • the base plate 237 is formed in a generally flat plate shape.
  • the base plate 237 is fixed to the door hanger 221A.
  • the hook receiving portion 234 is fixed to the door hanger 221B or the door body 211B.
  • a pivot shaft 232 and a second landing side engaging element 236 are fixed to the base plate 237.
  • the pivot shaft 232 rotatably supports the hook member 231.
  • a stopper 241 fixed to the base plate 237 abuts against the hook member 231.
  • the stopper 241 restricts the counterclockwise rotation of the hook member 231.
  • a first landing side engaging element 235 is rotatably attached to the upper end of the hook member 231.
  • the first landing side engaging element 235 and the second landing side engaging element 236 are arranged opposite each other in the sliding direction of the pair of door bodies 211A, 211B. When the car 110 stops at any floor, the first landing side engaging element 235 and the second landing side engaging element 236 are arranged between the first car side engaging element 32 and the second car side engaging element 52 in the car side locking mechanism 30 (see Figure 3).
  • the locking retaining member 239 biases the hook member 231 in a direction in which it engages with the hook receiving portion 234, i.e., downward in the vertical direction. This maintains the engagement between the hook member 231 and the hook receiving portion 234, and maintains the locked state of the platform-side locking mechanism 230.
  • the locking and retaining member 239 corresponds to the biasing member of the present invention.
  • a compression coil spring is used as the locking and retaining member 239.
  • the locking and retaining member 239 is not limited to a compression coil spring, and various other elastic members such as leaf springs and rubber may also be used.
  • the force with which the locking retaining member 239 maintains the locked state of the platform-side locking mechanism 230 is set to be greater than the force with which the locking retaining member 39 (see FIG. 3) of the car-side door unit 12 maintains the locked state of the car-side locking mechanism 30.
  • the biasing force of the locking retaining member 39 of the car-side locking mechanism 30 is set to be smaller than the biasing force of the locking retaining member 239 of the platform-side locking mechanism 230.
  • the landing-side door unit 212 has an operating rope 245.
  • One end of the operating rope 245 is connected to the side of the hook member 231 opposite to the side facing the hook receiving portion 234.
  • the operating rope 245 is used when manually unlocking the landing-side locking mechanism 230 from the elevator shaft 100.
  • a force is applied to the hook member 231 to rotate about the rotating shaft 232 in a direction away from the hook receiving portion 234.
  • the hook member 231 rotates against the biasing force of the locking retaining member 239, and the landing-side locking mechanism 230 is unlocked.
  • Fig. 5 is a front view showing the platform-side locking mechanism 230.
  • Fig. 6 is a perspective view showing the platform-side locking mechanism 230.
  • Fig. 7 is a perspective view showing the platform-side locking mechanism 230 with the hook receiving portion 234 removed.
  • the hook member 231 has a hook base 251, an extension portion 252, and an unlocking portion 253.
  • the hook base 251 is formed in a horizontally long plate shape.
  • the hook base 251 is rotatably supported by the pivot shaft 232 described above.
  • the other end of the locking retaining member 239 described above is fixed to the upper end of the hook base 251 (see FIG. 4).
  • a first hook 251a is formed at one longitudinal end of the hook base 251. When the pair of door bodies 211A, 211B (see FIG. 4) are in the closed state, the first hook 251a engages with the hook receiving portion 234.
  • the extension 252 is formed as a horizontally elongated rectangular plate.
  • a second hook 252a is formed at one longitudinal end of the extension 252.
  • the other longitudinal end of the extension 252 is fixed to the flat surface of the hook base 251 on the elevator shaft 100 side.
  • the extension 252 can be fixed to the hook base 251 by welding or screws.
  • extension 252 protrudes in the sliding direction beyond one end of the hook base 251.
  • the second hook 252a of the extension 252 faces the first hook 251a of the hook base 251 in the sliding direction.
  • the distance from the surface of the first hook 251a that engages with the hook receiving portion 234 to the surface of the second hook 252a that engages with the hook receiving portion 234 is set to a predetermined distance M1.
  • the second hook 252a engages with the hook receiving portion 234.
  • the sliding of the pair of door bodies 211A, 211B is locked in a door-opening intermediate state, which is a state in which the doors are partway open.
  • the pair of door bodies 211A, 211B open the entrance 102 (see FIG. 2) to an extent that prevents an operator (person) from passing through.
  • the pair of door bodies 211A, 211B are double-hinged doors. Therefore, the gap (opening) between the pair of door bodies 211A, 211B is approximately twice the predetermined distance M1.
  • the unlocking portion 253 has a connection portion 261 and an arm portion 262.
  • the connection portion 261 is formed in a generally rectangular plate shape.
  • the connection portion 261 is fixed to the flat surface of the hook base 251 on the hoistway 100 side using a screw.
  • the arm portion 262 is continuous with the end face of the connection portion 261 on the hook receiving portion 234 side.
  • the arm portion 262 is located closer to the landing side (building side) than the extension portion 252.
  • the arm portion 262 is made of a plate that is roughly L-shaped when viewed from above.
  • the arm portion 262 has an intermediate plate piece and an operating plate piece.
  • the intermediate plate piece is continuous with the connection portion 261 and extends in the depth direction.
  • the intermediate plate piece has a plane that is perpendicular to the sliding direction.
  • the operating plate piece is continuous with the intermediate plate piece and extends in the sliding direction.
  • a first unlocking piece 263 and a second unlocking piece 264 are formed on the upper end of the operating plate in the unlocking section 253.
  • the first unlocking piece 263 corresponds to the first unlocking section of the present invention
  • the second unlocking piece 264 corresponds to the second unlocking section of the present invention.
  • the first unlocking piece 263 and the second unlocking piece 264 are located closer to the landing side than the first hook 251a and the second hook 252a.
  • the first unlocking piece 263 and the second unlocking piece 264 consist of a plate having a plane perpendicular to the vertical direction.
  • the first unlocking piece 263 is located closer to the connection part 261 than the second unlocking piece 264.
  • the distance from the center of the first unlocking piece 263 to the center of the second unlocking piece 264 is set to a predetermined distance M1.
  • the hook receiving portion 234 is attached to the unit base 214 via a mounting bracket 271.
  • the hook receiving portion 234 is a bent member that is approximately L-shaped when viewed from the depth direction.
  • the hook receiving portion 234 has a vertical piece that extends in the up-down direction and a horizontal piece that extends in the sliding direction.
  • An engagement protrusion 234a is formed on the end of the horizontal piece opposite the end that is continuous with the vertical piece. The engagement protrusion 234a engages with the first hook 251a and second hook 252a described above.
  • An auxiliary hook receiver 254 is attached to the side piece of the hook receiver 234.
  • the second hook 252a engages with the auxiliary hook receiver 254.
  • FIGS. Fig. 8 is a front view showing a state in which the car-side locking mechanism 30 is unlocked.
  • Fig. 9 is a front view showing the door-opening operation of the car door.
  • the first car-side engaging element 32 When the first car door 11A moves further in the door-opening direction, the first car-side engaging element 32 is pressed by the first landing-side engaging element 235 in the direction opposite to the direction in which the first car door 11A moves. This causes the pair of first link members 41A, 41B to rotate about the link shaft 42. The first car-side engaging element 32 then moves downward in the vertical direction in the direction opposite to the direction in which the first car door 11A moves.
  • the movement of the first car side engaging member 32 is transmitted to the locking side hook member 33 via the transmission unit 36 and the transmission pin 37.
  • the locking side hook member 33 rotates about the pivot shaft 35 against the force of the lock retaining member 39.
  • the locking side hook member 33 rotates from the locked position where the hook portion 33a engages with the fixed hook member 34 to an unlocked position where it faces upward in the vertical direction. This releases the engagement between the hook portion 33a and the fixed hook member 34, and the car side locking mechanism 30 is unlocked.
  • the first car side engaging member 32 stops moving when it comes into contact with the second stopper 46.
  • the first landing-side engaging element 235 is pressed by the first car-side engaging element 32.
  • the landing-side locking mechanism 230 is unlocked, and the pair of door bodies 211A, 211B move in the door-opening direction together with the car doors 11A, 11B.
  • the car doors 11A, 11B of the car 110 and the pair of door bodies 211A, 211B of the landing door 210 are in the door-opening state.
  • FIGS. Fig. 10 is a diagram showing the landing-side locking mechanism 230 when the pair of door bodies 211A, 211B of the landing door 210 are in a door-closed state.
  • Fig. 11 is a diagram showing the landing-side locking mechanism 230 when the pair of door bodies 211A, 211B have moved to an unlocked position.
  • Fig. 12 is a diagram showing the landing-side locking mechanism 230 when the pair of door bodies 211A, 211B are in a half-open state.
  • a clearance of a specific distance M2 is formed between the first hook 251a of the hook member 231 and the engagement protrusion 234a of the hook receiving portion 234.
  • a clearance of a specific distance M2 is formed between the second hook 252a and the auxiliary hook receiving portion 254. Therefore, the pair of door bodies 211A, 211B can be opened up to the specific distance M2 when in the closed state.
  • the specific distance M2 is shorter than the predetermined distance M1 (see FIG. 5).
  • the pair of door bodies 211A, 211B are double-hinged doors. Therefore, the gap (opening) between the pair of door bodies 211A, 211B is approximately twice the specific distance M2.
  • the pair of door bodies 211A, 211B are opened to the specific distance M2, the pair of door bodies 211A, 211B are positioned in the unlocked position.
  • the first unlocking piece 263 When the pair of door bodies 211A, 211B are in the unlocked position shown in FIG. 11, the first unlocking piece 263 is positioned so that it can be operated through the gap between the pair of door bodies 211A, 211B. Specifically, the first unlocking piece 263 faces an operation opening (not shown) provided in the unit base 214.
  • the operator uses a rod-shaped tool or the like to press from below on the first unlocking piece 263 that faces the operation opening. This causes the hook member 231 to rotate about the pivot shaft 232, disengaging the first hook 251a from the engaging protrusion 234a and disengaging the second hook 252a from the auxiliary hook receiver 254. As a result, the pair of door bodies 211A, 211B can slide in the door-opening direction.
  • the first unlocking piece 263 moves to a position that does not face the operation opening. This means that the operator can no longer press the first unlocking piece 263 from below, and the hook member 231 is biased by the lock retaining member 239 to rotate around the pivot shaft 232. As a result, the second hook 252a faces the engagement protrusion 234a of the hook receiving portion 234 in the sliding direction.
  • the second hook 252a engages with the engagement protrusion 234a of the hook receiving portion 234. This locks the pair of door bodies 211A, 211B from sliding in the door-opening direction when the door is halfway open.
  • the second unlocking piece 264 faces the operation opening (not shown) of the unit base 214.
  • the pair of door bodies 211A, 211B When the pair of door bodies 211A, 211B are partially open, they open the entrance 102 (see FIG. 2) to an extent that prevents a worker (person) from passing through. This allows the worker an opportunity to check the status of the car 110 in the elevator shaft 100 before opening the pair of door bodies 211A, 211B. As a result, the landing door 210 can increase safety during maintenance and inspection work.
  • the platform-side locking mechanism 230 configured in this way is capable of two-stage locking with a single hook member 231. This allows the number of parts in the platform door to be reduced. Furthermore, because the platform-side locking mechanism 230 allows for two-stage locking, it is possible to increase safety when an operator opens the platform door 210.
  • a clearance of a specific distance M2 is formed between the first hook 251a and the engaging protrusion 234a of the hook receiving portion 234.
  • the first unlocking piece 263 can be operated from an operation opening (not shown). This prevents the first unlocking piece 263 from being easily operated by anyone other than the worker.
  • a worker who knows the existence of the operation opening can easily unlock the door by operating the first unlocking piece 263.
  • the first unlocking piece 263 and the second unlocking piece 264 are located closer to the landing than the first hook 251a and the second hook 252a. This allows a rod-shaped tool or the like to be easily brought into contact with the first unlocking piece 263 and the second unlocking piece 264 without the need for complicated tools. As a result, the first unlocking piece 263 and the second unlocking piece 264 can be easily operated. In addition, when operating the first unlocking piece 263 or the second unlocking piece 264, the rod-shaped tool or the like does not interfere with the first hook 251a and the second hook 252a. As a result, damage to the first hook 251a and the second hook 252a can be suppressed or prevented.
  • the hook member 231 has a hook base 251 and an extension 252 fixed to the hook base 251.
  • the hook member according to the present invention may have the hook base and extension formed integrally. This can further reduce the number of parts in the platform-side locking mechanism.
  • the platform-side locking mechanism 230 is equipped with an auxiliary hook receiver 254 that engages with the second hook 252a when the door is closed. This makes it possible to strengthen the lock when the door is closed (unlocked position). In addition, when the door is closed and an attempt is made to open the pair of door bodies 211A, 211B, the force applied to the first hook 251a can be reduced.
  • the landing door and elevator of the present invention including its effects.
  • the landing door and elevator of the present invention are not limited to the above-described embodiment, and various modifications are possible within the scope of the gist of the invention described in the claims.
  • the landing door 210 is a double-leaf door.
  • the landing door according to the present invention may be any door that slides to open and close the entrance 102, and may be, for example, a single-leaf door.
  • the worker places the pair of door bodies 211A, 211B in the unlocked position and presses the first unlocking piece 263 facing the operation opening from below.
  • the landing door according to the present invention may be configured such that an operation through-hole is formed in the door body 211A or the door body 211B, and the first unlocking piece 263 is pressed from below through the through-hole. In this case, there is no need to place the pair of door bodies 211A, 211B in the unlocked position.
  • platform door 211A, 211B... door body, 212... platform side door unit, 213... platform side door Sill, 214...unit base, 215...landing side door rail, 216...first pulley, 217...transmission belt, 218...second pulley, 221A, 221B...door hanger, 222, 223...connecting member, 224...moving roller, 230...landing side locking mechanism, 231...hook member, 232...rotating shaft, 234...hook receiving portion, 234a...engagement protrusion, 235...first pulley platform side engaging element, 236...second platform side engaging element, 237...base plate, 239...locking retaining member, 241...stopper, 245...operating rope, 251...hook base, 251a...first hook, 252...extension, 252a...second hook, 253...unlocking part, 261...connecting part, 262...arm, 263...first unlocking piece, 264...second unlocking piece, 271...mounting bracket

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

Abstract

L'invention concerne une porte palière et un ascenseur qui permettent de réduire le nombre de composants d'un mécanisme de verrouillage permettant un verrouillage en deux étapes. La porte palière comporte un mécanisme de verrouillage qui verrouille un corps de porte dans un état fermé de porte dans lequel un corps de porte est fermé, et dans un état partiellement ouvert de porte dans lequel le corps de porte est ouvert de l'état fermé de porte sur une distance prédéterminée. Un élément crochet du mécanisme de verrouillage comporte un premier crochet et un second crochet et tourne autour d'un axe de rotation perpendiculaire à une direction de coulissement et à une direction verticale du corps de porte. Une partie de réception de crochet vient en prise avec le premier crochet dans l'état fermé de porte et vient en prise avec le second crochet dans l'état partiellement ouvert de porte. Un élément de sollicitation sollicite l'élément crochet dans une position dans laquelle le premier crochet et le second crochet font face à la partie de réception de crochet dans la direction de coulissement du corps de porte. Une première partie de déverrouillage est reliée à l'élément crochet et peut être actionnée pour faire tourner l'élément crochet dans l'état fermé de porte. Une seconde partie de déverrouillage est reliée à l'élément crochet et peut être actionnée pour faire tourner l'élément crochet dans l'état partiellement ouvert de porte.
PCT/JP2023/035664 2023-09-29 2023-09-29 Porte palière et ascenseur Pending WO2025069387A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2025522867A JPWO2025069387A1 (fr) 2023-09-29 2023-09-29
PCT/JP2023/035664 WO2025069387A1 (fr) 2023-09-29 2023-09-29 Porte palière et ascenseur
CN202380075726.9A CN120129648A (zh) 2023-09-29 2023-09-29 层门以及电梯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2023/035664 WO2025069387A1 (fr) 2023-09-29 2023-09-29 Porte palière et ascenseur

Publications (1)

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WO2025069387A1 true WO2025069387A1 (fr) 2025-04-03

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JP (1) JPWO2025069387A1 (fr)
CN (1) CN120129648A (fr)
WO (1) WO2025069387A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6331987A (ja) * 1986-07-22 1988-02-10 株式会社日立製作所 エレベ−タ乗場戸の解錠装置
JP2014156336A (ja) * 2013-02-18 2014-08-28 Fujitec Co Ltd エレベータ乗場ドアの解錠装置
CN104773638A (zh) * 2014-01-15 2015-07-15 上海三菱电梯有限公司 带轿门锁的异步门刀、电梯门机及轿门系统
CN109436999A (zh) * 2018-11-28 2019-03-08 苏州市职业大学 电梯连杆式层门锁

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6331987A (ja) * 1986-07-22 1988-02-10 株式会社日立製作所 エレベ−タ乗場戸の解錠装置
JP2014156336A (ja) * 2013-02-18 2014-08-28 Fujitec Co Ltd エレベータ乗場ドアの解錠装置
CN104773638A (zh) * 2014-01-15 2015-07-15 上海三菱电梯有限公司 带轿门锁的异步门刀、电梯门机及轿门系统
CN109436999A (zh) * 2018-11-28 2019-03-08 苏州市职业大学 电梯连杆式层门锁

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CN120129648A (zh) 2025-06-10

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