Elevator landing door engagement device and elevator

Abstract

To provide an elevator landing door engaging device and an elevator which do not require removal of the entire device for work on a car door. [Solution] An engaging body 601 that engages with an engaged portion on the landing door side when the car door 56 moves is long in the vertical direction and is arranged on the front side of the door hanger 561 and the front side of the door panel 560, straddling a connection portion 563 between the door hanger 561 and the door panel 560, and is divided into an upper engaging body 601A and a lower engaging body 601B at a location corresponding to the connection portion 563. By removing or changing the position of the lower engaging body 601B so that it is away from the lower end of the upper engaging body 601A, it becomes possible to work on the car door 56 without having to remove the entire device 60.

Description

[Technical Field]

[0001] The present invention relates to an elevator landing door engaging device that is provided in a car door device and engages with an engaged portion on a landing door side when the car door is opened, thereby opening the landing door in conjunction with the opening operation of the car door, and to an elevator. [Background technology]

[0002] One known form of landing door engaging device is a structure in which two cams (movable cams, engaging bodies), each long in the vertical direction and spaced apart by a predetermined distance in the horizontal direction, are provided in positions protruding from the car door toward the landing door, and engage with rollers (engaged portions) of a door locking device on the landing door side, transmitting a driving force for an opening operation to the landing door (Patent Document 1).

[0003] This type of landing door engagement device is attached to the door hanger out of the door hanger and door panel that constitute the car door, and the two cams are arranged on the front side of the door hanger and the front side of the door panel, straddling the joint between the door hanger and the door panel. Note that because the roller of the door lock device on the landing door side is arranged at the height position of the door hanger, it is sufficient that the two cams are also arranged on the front side of the door hanger, but the two cams are also arranged to extend downward beyond the joint between the door hanger and the door panel and on the front side of the door panel so that the landing door engagement device can operate effectively even in cases where the car stops at a height position slightly higher than the landing. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7465460 Summary of the Invention [Problem to be solved by the invention]

[0005] Typically, one of the two cams is fixed and immovable, while the other cam is movable parallel to the first cam. In this case, a portion of the connection between the door hanger and the door panel is located behind the fixed cam. If the arrangement of the fasteners for the door hanger and the door panel overlaps with this portion, the fasteners are located behind the fixed cam and are hidden from view from the front of the car door. In this case, it is difficult or impossible to approach the fasteners from the front of the car door with a tool and operate them.

[0006] Therefore, when it becomes necessary to remove the door panel from the door hanger for replacement or to readjust the position of the door panel relative to the door hanger, it is necessary to remove the landing door engagement device in order to enable operation of the fastener. Furthermore, after replacing or readjusting the door panel, it is necessary to reattach the landing door engagement device and return it to its original position. These examples of work are very complicated, which leads to a problem of increasing the number of work steps.

[0007] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elevator landing door engagement device and an elevator that do not require removal of the entire device in order to perform work on the car door. [Means for solving the problem]

[0008] The elevator landing door engagement device according to the present invention comprises: 1. An elevator landing door engaging device comprising: a door hanger and a door panel connected to a lower end of the door hanger and suspended and supported by the door hanger; an engaging body attached indirectly or directly to the car door via a base as a means for engaging with an engaged portion on the landing door when the car door moves; The engaging body is long in the vertical direction, From the door hanger Door hanger and door panel connection The connection part extends beyond the door panel below. and is arranged on the front side of the door hanger and the front side of the door panel across the connecting portion, and is divided into an upper engaging body and a lower engaging body at a location corresponding to the connecting portion, The lower engagement body is provided so as to be repositionable or removable so as to be separated from the lower end of the upper engagement body. An elevator hall door engagement device. Further, the elevator landing door engaging device according to the present invention is 1. An elevator landing door engaging device comprising: a door hanger; and a door panel connected to a lower end of the door hanger and supported by the door hanger in a suspended manner; and an engaging body indirectly attached to the car door via a base as a means for engaging with an engaged portion on the landing door when the car door moves, the engaging body comprising: a door hanger; The engagement body is elongated in the vertical direction, and is disposed on the front side of the door hanger and the front side of the door panel across the connection portion between the door hanger and the door panel, and is divided into an upper engagement body and a lower engagement body at a location corresponding to the connection portion, the lower engagement body is provided so as to be repositionable or removable so as to be separated from the lower end of the upper engagement body; The base has an upper portion disposed on the front side of the door hanger and attached to the door hanger, a lower portion disposed on the front side of the door panel, and a recess formed from one side edge of the base toward the other side edge, The divided portion of the upper engagement body and the lower engagement body is located within the recess when viewed from the front of the car door. An elevator hall door engagement device. Further, the elevator landing door engaging device according to the present invention is An elevator landing door engaging device comprising: a first engaging body attached indirectly or directly to the car door via a base as means for engaging with an engaged portion on the landing door side when the car door, which is composed of a door hanger and a door panel connected to a lower end of the door hanger and supported by being suspended from the door hanger, moves; and a second engaging body arranged at a predetermined interval from the first engaging body and provided movable in a direction toward and away from the first engaging body, The first engagement body is elongated in the vertical direction and is disposed on the front side of the door hanger and the front side of the door panel across the connection portion between the door hanger and the door panel, and is divided into an upper engagement body and a lower engagement body at a location corresponding to the connection portion, the lower engagement body is provided so as to be repositionable or removable so as to be separated from the lower end of the upper engagement body; The second engagement body is not divided An elevator hall door engagement device.

[0009] As one aspect of the elevator landing door engagement device according to the present invention, The lower engagement body is attached using at least one fastener, and has at least one elongated hole as a through-hole for the shaft of the fastener, and can be repositioned away from the lower end of the upper engagement body by loosening the fastener. The above configuration can be adopted.

[0010] As one aspect of the elevator landing door engagement device according to the present invention, The lower engagement body is attached using at least two fasteners, and has at least one elongated hole and at least one circular hole as through holes for the shafts of the fasteners. By removing the fastener corresponding to the circular holes and loosening the fastener corresponding to the elongated holes, the lower engagement body can be repositioned away from the lower end of the upper engagement body. The above configuration can be adopted.

[0013] The elevator according to the present invention comprises: The elevator is provided with any one of the elevator landing door engagement devices described above. It's an elevator. [Effects of the Invention]

[0014] According to the present invention, even if the fasteners of the door hanger and the door panel overlap with the portion of the connection between the door hanger and the door panel that is located behind the engaging body, by repositioning the lower engaging body away from the lower end of the upper engaging body or by removing it, it becomes possible to approach a tool from the front side of the car door to operate the fasteners. Therefore, according to the present invention, it is not necessary to remove the entire device to work on the car door, and work efficiency can be improved. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view of an elevator. [Figure 2] Fig. 2(a) is a front view of the car with the car door fully closed as seen from the landing side, and Fig. 2(b) is a front view of the car with the car door fully open. [Figure 3] FIG. 3 is a partial cross-sectional side view of the car door device and the landing door device. [Figure 4] Fig. 4(a) is a front view of the door lock device in a locked state as seen from inside the elevator shaft, and Fig. 4(b) is a front view of the door lock device in an unlocked state. [Figure 5] FIG. 5 is a front view of the landing door engaging device in an inoperative state because the car door is in a fully closed state, as viewed from the landing side. [Figure 6] FIG. 6 is a front view of the landing door engaging device in an actuated state as a result of the car door starting an opening operation. [Figure 7] FIG. 7 is a front view of the base of the landing door engaging device. [Figure 8] FIG. 8 is a front view of the base and the first cam attached to the base. [Figure 9] FIG. 9 is a front view showing a state in which the lower cam of the first cam in FIG. 8 is released from the fixed state to open the connection portion between the door hanger of the car door and the door panel. [Figure 10]FIG. 10 is a front view of the landing door engaging device according to Alternative Embodiment 1, in a state where the lower cam is released to open the connection portion between the door hanger and the door panel. [Figure 11] FIG. 11 is a front view of the landing door engaging device according to the second alternative embodiment, in a state where the lower cam is released to open the connection portion between the door hanger and the door panel. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of an elevator equipped with a landing door engaging device according to the present invention will be described.

[0017] As shown in Figure 1, elevator 1 includes hoistway 2 and car 5. Hoistway 2 extends vertically in a building with multiple floors. Car 5 moves up and down in hoistway 2 by being driven by a drive device, and stops at a designated floor by stopping the drive device.

[0018] The car 5 is equipped with a car door device 55. The car door device 55 is equipped with a car door 56, a door support structure 57, and a door opening and closing device 58. The car door 56 moves left and right (horizontally left and right, the same applies below) to open and close an opening (car entrance / exit) on the front of the car 5, allowing passengers to get on and off. The door support structure 57 is a structure that supports the car door 56 while enabling the car door 56 to open and close. The door opening and closing device 58 is a device for opening and closing the car door 56.

[0019] In contrast, the landing 30 on each floor includes a jamb 31 and a landing door device 35. The jamb 31 is formed on a wall surface, and the interior of the frame forms an opening of a size corresponding to the opening of the car 5. The landing door device 35 includes a landing door 36 and a door support structure 37. The landing door 36 moves left and right to open and close the opening (landing entrance / exit) in the jamb 31, allowing passengers to get on and off. The landing door 36 is normally kept closed by an elastic force, and is opened against the elastic force in response to the opening operation of the car door 56 of the car 5 stopped at the floor, and is closed by the elastic force in response to the closing operation of the car door 56. The door support structure 37 is a structure that supports the landing door 36 while enabling the opening and closing operation of the landing door 36.

[0020] As shown in FIGS. 2 and 3 , the car door 56 includes a door panel 560, a door hanger 561, and a connector 566. The door panel 560 is arranged along a vertical plane and is the main body of the car door 56 that opens and closes the opening 5a of the car 5. The door panel 560 is connected to the lower end of the door hanger 561 so that the upper edge of the door panel 560 and the lower edge of the door hanger 561 are adjacent to each other via a spacer (described later) or are in contact without a spacer, and the upper end surface of the door panel 560 and the lower end surface of the door hanger 561 face each other via a spacer (described later) or are overlapped without a spacer. The door hanger 561 is integrated with the door hanger 561 and is suspended and supported by the door hanger 561. The door hanger 561 includes a pair of rollers 562, 562. The pair of rollers 562, 562 are arranged at an interval in the left-right direction at the upper end of the door hanger 561. The connector 566 is attached to the upper end of the door hanger 561 between the pair of rollers 562, 562. The connector 566 is a device that connects the car door 56 (the door hanger 561) to a drive belt 584 of the door opening and closing device 58, which will be described later.

[0021] The door support structure 57 includes a door rail 570 and a threshold 571. The door rail 570 is formed in a strip shape and is provided in the left-right direction on the upper front surface of the car 5. The rollers 562, 562 of the door hanger 561 are placed on the upper edge of the door rail 570, so that the car door 56 is hung from the door rail 570 in a state in which it can slide in the left-right direction along the door rail 570. The door rail 570 is a structure that supports the upper part of the car door 56 while allowing the car door 56 to open and close. On the other hand, the threshold 571 is provided in the left-right direction on the lower front surface of the car 5 along the lower edge of the opening 5a of the car 5 and so that both ends are wider in the left-right direction than the lower edge of the opening 5a. The threshold 571 is a structure that supports the lower part of the car door 56 while allowing the car door 56 to open and close.

[0022] The landing door 36 and the door support structure 37 have the same structure as the car door 56 and the door support structure 57 .

[0023] The door opening and closing device 58 includes a drive motor 580, a reduction pulley 581, a pair of pulleys 582, 582, a reduction belt 583, and a drive belt 584. The drive motor 580 is provided at the front of the top surface of the car 5. The reduction pulley 581 is provided at either the left or right end of the upper front surface of the car 5. One pulley 582 is provided coaxially and integrally with the reduction pulley 581. The other pulley 582 is provided at the other end of the upper front surface of the car 5, either the left or right end. The reduction belt 583 is an endless belt wound around the drive shaft of the drive motor 580 and the reduction pulley 581. The drive belt 584 is an endless belt wound around the pair of pulleys 582, 582. The drive belt 584 is provided in the left-right direction and parallel to the door rail 570.

[0024] When the drive motor 580 is driven, the rotation is transmitted to the speed reduction pulley 581 via the speed reduction belt 583, causing the speed reduction pulley 581 and the pulley 582 to rotate, and in response to this, the drive belt 584 moves in a circular motion. As a result, the two left and right car doors 56, 56 reciprocate along the door rail 570, performing an opening and closing operation. One car door 56 is connected to one side of the drive belt 584 by a connector 566, and the other car door 56 is connected to the other side of the drive belt 584 by the connector 566. As a result, the pair of car doors 56, 56 move in directions opposite to each other. In other words, the car door device 55 and the landing door device 35 are of a center-open type in which the opening 5a of the car 5 opens from the center.

[0025] The car door device 55 includes a landing door engaging device 60. The landing door engaging device 60 is a device that engages with an engaged portion on the landing door 36 side when the car door 56 performs an opening operation, thereby causing the landing door 36 to perform an opening operation in conjunction with the opening operation of the car door 56. The details of the landing door engaging device 60 will be described later.

[0026] 4, the landing door device 35 includes a door locking device 38. The door locking device 38 includes, as components on the landing entrance / exit side, a locked portion 380a of a locked member 380 and a switch 381 of a door closing detection unit, and includes, as components on the landing door 36 side, a locking member 382 and a conductor portion 383.

[0027] The locked member 380 and the switch 381 are attached directly or indirectly via a bracket or the like to the inner wall 2A of the elevator shaft 2 around the landing entrance. As an example, the locked member 380 is attached to the front surface of the door rail 370, and the switch 381 is attached to the locked member 380. The locking member 382 is attached to the door hanger 361 so as to be swingable. When the landing door 36 is fully closed, the locking member 382 swings so that its tip lowers vertically and engages with the locked portion 380a (locked state). The conductor portion 383 is attached to the tip of the locking member 382. When the locking member 382 is in the locked state, the conductor portion 383 comes into contact with and acts on a pair of terminals (not shown) of the switch 381, turning the switch 381 ON (or OFF). The control unit of the elevator 1 determines that the landing door 36 is fully closed based on the ON signal (or OFF signal) of the switch 381.

[0028] On the other hand, as the landing door engaging device 60 of the car door device 55 engages with the roller 384 on the locking member 382 in conjunction with the opening operation of the car door 56, the tip of the locking member 382 swings upward vertically, thereby releasing the engagement with the locked portion 380a (unlocked state). When the locking member 382 enters the unlocked state, the conductor portion 383 separates from the pair of terminals of the switch 381, turning the switch 381 OFF (or ON). The control unit of the elevator 1 determines, based on the OFF signal (or ON signal) of the switch 381, that the landing door 36 is not in a fully closed state. The roller 384 is one form of the engaged portion of the present invention.

[0029] As shown in FIGS. 5 and 6, the landing door engagement device 60 includes a contact body 600 as a component on the car entrance / exit side, and includes a first cam 601, a second cam 602, and an operating body 605 as components on the car door 56 side.

[0030] The abutment body 600 is attached directly to the front surface of the car 5 near the car entrance or indirectly via a mounting plate, bracket, frame, or the like. As one example, the abutment body 600 is attached to the front surface of the door rail 570. The abutment body 600 is provided in an upper region of the inner edge of the car door 56 when it is in a fully closed state (of the left and right side edges of the car door 56, the side edge that closes the car entrance). The abutment body 600 is a member having a cam portion 600a that is inclined with respect to the opening and closing direction of the car door 56. The abutment body 600 is a long, plate-shaped member with a bent tip, and the bent portion forms the cam portion 600a.

[0031] The first cam 601 and the second cam 602 are indirectly attached to (the front surface of) the door hanger 561 via a base 604. The first cam 601 and the second cam 602 are each long (vertically long) in the up-down direction and arranged in parallel with each other at a predetermined interval in the left-right direction, and are arranged on the front side of the door hanger 561 and the front side of (the upper part of) the door panel 560, straddling a connection portion 563 between the door hanger 561 and the door panel 560. The first cam 601 is means that engages with the roller 384 of the landing door device 35 when the car door 56 is opened, and is one form of the engaging body of the present invention. The second cam 602 is means that engages with the roller 384 when the car door 56 is closed, and is another form of the engaging body of the present invention.

[0032] The first cam 601 and the second cam 602 are angle members having a long plate-like portion that runs along the vertical surface of the car door 56 and a long plate-like portion (cam portion) that is perpendicular to the vertical surface of the car door 56. The first cam 601 and the second cam 602 are metal members made of, for example, iron, steel, stainless steel, or aluminum.

[0033] The first cam 601 is fixed and immovable. The second cam 602 is movable between a first state (FIG. 5) and a second state (FIG. 6) in which the second cam 602 is closer to the inner edge of the car door 56 and the first cam 601 than in the first state, narrowing the gap (width) between the first cam 601 and the second cam 602. For this reason, the first cam 601 and the second cam 602 are also called movable cams.

[0034] The second cam 602 constitutes one link of a parallel crank mechanism or a parallel link mechanism, and is provided so as to be movable in parallel by a pair of parallel links 603, 603. Each joint of the mechanism is provided so as to be rotatable about an axis perpendicular to the vertical plane of the car door 56. As a result, the second cam 602 is provided so as to be movable in parallel along the vertical plane of the car door 56.

[0035] The second cam 602 swings between a first state (FIG. 5) in which the pair of parallel links 603, 603 are tilted obliquely, and a second state (FIG. 6) in which the tilt is smaller (for example, horizontal), thereby changing the state of the mechanism and switching between the first state and the second state.

[0036] The second cam 602 is in the first state when the landing door engagement device 60 is not in operation (when the car door 56 is fully closed), and when the landing door engagement device 60 is in operation, the second cam 602 switches from the first state to the second state by moving obliquely downward due to its own weight.

[0037] The operating body 605 is disposed at an intermediate position between the first cam 601 and the second cam 602, and switches the second cam 602 between the first state and the second state. The operating body 605 is disposed behind the first cam 601 and the second cam 602, and is rotatably attached to the first cam 601.

[0038] The operating body 605 includes a roller 6050, a swing arm 6051, and a roller 6052. As the car door 56 opens, the roller 6050 moves away from the cam portion 600a of the abutting body 600, and as the car door 56 closes, the roller 6050 comes into contact with the cam portion 600a and moves on the cam portion 600a. The swing arm 6051 is swingably provided at a first portion of the swing arm 6051. The swing arm 6051 is rotatable between a first state (FIG. 5) corresponding to the first state of the second cam 602 and a second state (FIG. 6) corresponding to the second state of the second cam 602. As the car door 56 opens, the roller 6052 moves away from the input portion 602a of the second cam 602, and as the car door 56 closes, the roller 6052 comes into contact with the input portion 602a and moves on the input portion 602a. As an example, the input portion 602a is a protrusion that protrudes rearward from the rear surface of the second cam 602. The roller 6050 is provided at a second portion of the swing arm 6051. The roller 6052 is provided at a third portion of the swing arm 6051 so as to descend when the swing arm 6051 switches from the first state to the second state and to ascend when the swing arm 6051 switches from the second state to the first state. The roller 6050, the swing arm 6051, and the roller 6052 are provided to be rotatable about an axis that is perpendicular to the vertical plane of the car door 56.

[0039] 7, base 604 includes upper portion 604a, lower portion 604b, and recessed portion 604c. Base 604 is a plate-shaped member obtained by cutting and processing a metal plate made of, for example, iron, steel, stainless steel, or aluminum.

[0040] Upper portion 604a is a portion disposed on the front side of door hanger 561. Upper portion 604a is attached and fixed to (the front surface of) door hanger 561 using a plurality of fasteners (three fasteners in this example) 606. As an example, fasteners 606 are bolt and nut fasteners (including appropriate washers, spring washers, etc. as needed; hereinafter, the same applies when referring to fasteners).

[0041] A side end portion of the upper portion 604a (a tip portion located in the closing operation direction of the car door 56) is offset toward the front by bending as necessary. This side end portion has a plurality of screw holes (two screw holes aligned vertically in this example) 604d or through holes (round holes). These holes are holes for fixing an upper cam 601A of the first cam 601, which will be described later.

[0042] The lower portion 604b is a portion that is disposed on the front side of the door panel 560. The lower portion 604b is not fixed to the door panel 560. However, like the upper portion 604a, the lower portion 604b may be fixed using a fastener.

[0043] A side end portion of the lower portion 604b (a tip portion located in the closing operation direction of the car door 56) is offset toward the front by bending as necessary. A plurality of screw holes (two screw holes aligned vertically in this example) 604e or through holes (round holes) are formed in this side end portion. These holes are holes for fixing a lower cam 601B of the first cam 601, which will be described later.

[0044] A through hole (round hole) 604f is formed at the other side end (the base end located in the opening direction of the car door 56) of each of the upper part 604a and the lower part 604b. This hole is a hole for supporting the rotation of the parallel link 603 of the second cam 602.

[0045] The recess 604c is formed by cutting out from a side edge located in the closing operation direction of the car door 56 toward the opening operation direction. The recess 604c is arranged on the front side of the door hanger 561 and the front side of the door panel 560 (upper part) across the connection portion 563 between the door hanger 561 and the door panel 560. The operating body 605 is arranged inside the recess 604c. This reduces the depth dimension of the landing door engaging device 60, thereby making it thinner.

[0046] When the fasteners 564 of the door hanger 561 and the door panel 560 overlap with the portion of the connection portion 563 of the door hanger 561 and the door panel 560 that is located behind the base 604, the fasteners 564 are located within the recess 604c when viewed from the front of the car door 56, and a portion of the fasteners 564 is exposed. As an example, the fasteners 564 are bolt and nut fasteners. The upper edge of the door panel 560 is bent into a substantially U-shape, and a notch 560a is formed in a portion of the hanging piece on the front side, so that the head of the bolt of the fastener 564 is exposed from the notch 560a when viewed from the front of the car door 56. Note that a spacer 565 is inserted, as necessary, between the door hanger 561 and the door panel 560, through which the shaft of the fastener 564 passes, to adjust the height position of the door panel 560.

[0047] As shown in FIG. 8 , the first cam 601 is made up of an upper cam 601A and a lower cam 601B. The upper cam 601A and the lower cam 601B are formed by dividing the first cam 601 into two parts. The divided portion of the upper cam 601A and the lower cam 601B is located within the recess 604c of the base 604 when viewed from the front of the car door 56, and is also located at a position corresponding to the connection portion 563 of the door hanger 561 and the door panel 560. In other words, the upper cam 601A is located in an area above the position corresponding to the connection portion 563, and the lower cam 601B is located in an area below the position corresponding to the connection portion 563. The lower end of the upper cam 601A is located at a height position higher than the notch 560a of the door panel 560 so that the lower end of the upper cam 601A does not overlap the head of the fastener 564 when viewed from the front of the car door 56.

[0048] The upper cam 601A is attached and fixed to (the side end of) the upper part 604a of the base 604 using a plurality of fasteners (two fasteners in this example) 607. The upper cam 601A has a round hole 601Aa as a through-hole for the shaft of the fastener 607. As an example, the fastener 607 is a fastener formed by combining a bolt and a screw hole 604d in the upper part 604a of the base 604. Alternatively, if the upper part 604a of the base 604 has a through-hole (round hole) instead of a screw hole 604d, as an example, the fastener 607 is a bolt and nut fastener. The upper cam 601A is provided with a stopper 608. The stopper 608 locks the swing arm 6051 of the operating body 605 when the operating body 605 is in the second state ( FIG. 6 ), thereby restricting further swing of the operating body 605. This restricts further movement of the second cam 602, and fixes the distance between the first cam 601 and the second cam 602 to a distance that allows the roller 384 to be gripped.

[0049] The lower cam 601B has a shorter length than the upper cam 601A. The lower cam 601B is attached and fixed to (the side end of) the lower part 604b of the base 604 using a plurality of fasteners (two fasteners in this example) 609, 610. The lower cam 601B has an elongated hole 601Ba as a through-hole for the shaft of the fastener 609, and a round hole 601Bb as a through-hole for the shaft of the fastener 610. As an example, the fasteners 609, 610 are fasteners formed by combining a bolt and a threaded hole 604e in the lower part 604b of the base 604. Alternatively, if a through-hole (round hole) rather than a threaded hole 604e is formed in the lower part 604b of the base 604, for example, the fasteners 609, 610 are bolt and nut fasteners.

[0050] The elongated hole 601Ba is a hole that runs along the longitudinal direction (vertical direction) of the lower cam 601B. The elongated hole 601Ba has a predetermined length so that the stroke of the sliding movement of the elongated hole 601Ba relative to the shaft portion of the fixing tool 609, i.e., the movement of the lower cam 601B, is 20 mm or more, more preferably 40 mm or more.

[0051] 9, when fastener 610 is removed and fastener 609 is loosened, lower cam 601B moves downward by its own weight until the upper end of slot 601Ba comes into contact with the shaft of fastener 609, and changes its position so as to move away from the lower end of upper cam 601A. This opens up the portion of connection 563 between door hanger 561 and door panel 560 that is located behind lower cam 601B, and exposes notch 560a of door panel 560 and the head of fastener 564 when viewed from the front of car door 56.

[0052] As described above, according to the landing door engagement device 60 of the present embodiment, even if the arrangement of the fastener 564 of the door hanger 561 and the door panel 560 overlaps with the portion of the connection portion 563 of the door hanger 561 and the door panel 560 that is located behind the first cam 601, by changing the position of the lower cam 601B so as to be away from the lower end of the upper cam 601A, it becomes possible to approach a tool from the front side of the car door 56 to perform an operation on the fastener 564. Therefore, according to the landing door engagement device 60 of the present embodiment, it is not necessary to remove the entire device 60 in order to perform work on the car door 56, and it is possible to improve work efficiency.

[0053] Furthermore, with a conventional landing door engagement device, when a removed device is installed and returned to its original state, readjustment is required so that the device does not come into contact with the door lock device of the landing door device on each floor. However, with the landing door engagement device 60 according to this embodiment, even if the lower cam 601B is released from fixation, the upper cam 601A remains fixed, and the adjusted state is maintained. Then, when returning the lower cam 601B to its original state, it is only necessary to align the lower cam 601B with the upper cam 601A and fix it. Therefore, with the landing door engagement device 60 according to this embodiment, readjustment is not required, and in this respect too, it is possible to improve work efficiency.

[0054] According to the landing door engagement device 60 of this embodiment, the lower cam 601B has an elongated hole 601Ba as a through hole of the shaft portion of the fixing device 609, and the position of the lower cam 601B can be changed so as to be separated from the lower end of the upper cam 601A by loosening the fixing device 609. Therefore, according to the landing door engagement device 60 of this embodiment, it is not necessary to remove the lower cam 601B, and it is possible to reduce the risk of dropping the lower cam 601B into the elevator shaft.

[0055] According to the landing door engagement device 60 of this embodiment, the lower cam 601B has a round hole 601Bb as a through hole for the shaft portion of the fixing device 610. As a result, under normal circumstances, even if the fixing devices 609, 610 are loosened, the lower cam 601B will not move. Therefore, according to the landing door engagement device 60 of this embodiment, it is possible to prevent malfunctions (contact with other components, etc.) caused by the lower cam 601B moving unexpectedly under normal circumstances and being placed in an inappropriate positional state.

[0056] According to the landing door engaging device 60 of this embodiment, by providing the recess 604c in the base 604, it is possible to place the device 60 (base 604) even in front of the door hanger 561 and the fixture 564 of the door panel 560. Therefore, according to the landing door engaging device 60 of this embodiment, it is possible to increase the degree of freedom in the installation location.

[0057] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention.

[0058] In the above embodiment, the first cam 601 is a fixed cam, which means that it is a split type. However, the present invention is not limited to this. If the second cam is a fixed cam instead of the first cam, the second cam can be a split type, and if both the first cam and the second cam are fixed cams, both can be split type. Note that even if the cam is fixed, it is not necessary to make it a split type if there is no door hanger or door panel fastener located behind it.

[0059] In the above embodiment, two cams 601, 602 are provided. However, the present invention is not limited to this. For example, there may be one cam, and the landing door engagement device may be configured to operate only when the car door is opened (the landing door closing operation may be left to the return operation caused by the elastic force described above).

[0060] In the above embodiment, the base 604 is attached to the door hanger 561. However, the present invention is not limited to this. The base may be attached to the door panel. Alternatively, the base may be attached to both the door hanger and the door panel.

[0061] Alternatively, the base is not required and the cam may be attached directly to the door hanger and / or door panel.

[0062] In the above embodiment, the elongated hole 601Ba is disposed on the top of the lower cam 601B, and the round hole 601Bb is disposed on the bottom. However, the present invention is not limited to this. The arrangement may be upside down.

[0063] In the above embodiment, the through hole in the lower cam 601B is a combination of an elongated hole 601Ba and a round hole 601Bb. However, the present invention is not limited to this. For example, as shown in FIG. 10, the through hole may be a combination of two elongated holes 601Ba. Alternatively, as shown in FIG. 11, the through hole may be a combination of two round holes 601Bb. Furthermore, the number of through holes is not limited to two, and may be three or more.

[0064] In the above embodiment, the connection portion 563 between the door hanger 561 and the door panel 560 is opened by changing the position of the lower cam 601B. However, the present invention is not limited to this. As shown in FIG. 7, the lower cam may be removed.

[0065] In the above embodiment, the lower cam 601B has a length shorter than the upper cam 601A. However, the present invention is not limited to this. For example, in a design in which the height position of the door hanger of the car door is increased while the height position of the door lock device of the landing door remains the same, the length of the lower cam can be designed to be longer than the length of the upper cam.

[0066] In the above embodiment, the door opening and closing device 58 is a system in which the drive motor 580 and the pulley 582 are connected by the speed reduction belt 583, and the pulley 582 and the drive belt 584 wound around the pulley 582 are indirectly driven. However, the present invention is not limited to this. The door opening and closing device may be a system in which the pulley is directly connected to the drive motor, and the pulley and the drive belt wound around the pulley are directly driven. [Explanation of symbols]

[0067] 1... elevator, 2... hoistway, 2A... interior wall, 30... landing, 31... jamb, 35... landing door device, 36... landing door, 360... door panel, 361... door hanger, 362... roller, 37... door support structure, 370... door rail, 371... threshold, 38... door lock device, 380... locked member, 380a... locked portion, 381... switch, 382... locking member, 383... guide Body part, 384... roller (engaged part), 5... car, 5a... opening, 55... car door device, 56... car door, 560... door panel, 560a... notch, 561... door hanger, 562... roller, 563... connection part, 564... fixing device, 565... spacer, 566... ​​connecting body, 57... door support structure, 570... door rail, 571... threshold, 58... door opening and closing device, 580... drive motor, 581...Deceleration pulley, 582...Pulley, 583...Deceleration belt, 584...Drive belt, 60...Landing door engaging device, 600...Abutment body, 600a...Cam portion, 601...First cam (engagement body), 601A...Upper cam (upper engagement body), 601Aa...Through hole (round hole), 601B...Lower cam (lower engagement body), 601Ba...Through hole (long hole), 601Bb...Through hole (round hole), 602...Second cam ( engagement body), 602a...input portion, 603...parallel link, 604...base, 604a...upper portion, 604b...lower portion, 604c...recess, 604d...screw hole, 604e...screw hole, 604f...through hole (round hole), 605...operation body, 6050...roller, 6051...oscillating arm, 6052...roller, 606...fixing device, 607...fixing device, 608...stopper, 609...fixing device, 610...fixing device

Claims

1. 1. An elevator landing door engaging device comprising: a door hanger and a door panel connected to a lower end of the door hanger and suspended and supported by the door hanger; an engaging body attached indirectly or directly to the car door via a base as a means for engaging with an engaged portion on the landing door when the car door moves; The engaging body is elongated in the vertical direction and extends from the door hanger to the door panel below, beyond the connection between the door hanger and the door panel, thereby being arranged on the front side of the door hanger and the front side of the door panel across the connection, and is divided into an upper engaging body and a lower engaging body at a location corresponding to the connection, The lower engagement body is provided so as to be repositionable or removable so as to be separated from the lower end of the upper engagement body. Elevator landing door engagement device.

2. 1. An elevator landing door engaging device comprising: a door hanger; and a door panel connected to a lower end of the door hanger and supported by the door hanger in a suspended manner; and an engaging body indirectly attached to the car door via a base as a means for engaging with an engaged portion on the landing door when the car door moves, the engaging body comprising: a door hanger; The engagement body is elongated in the vertical direction, and is disposed on the front side of the door hanger and the front side of the door panel across the connection portion between the door hanger and the door panel, and is divided into an upper engagement body and a lower engagement body at a location corresponding to the connection portion, the lower engagement body is provided so as to be repositionable or removable so as to be separated from the lower end of the upper engagement body; The base has an upper portion disposed on the front side of the door hanger and attached to the door hanger, a lower portion disposed on the front side of the door panel, and a recess formed from one side edge of the base toward the other side edge, The divided portion of the upper engagement body and the lower engagement body is located within the recess when viewed from the front of the car door. Elevator landing door engagement device.

3. An elevator landing door engaging device comprising: a first engaging body attached indirectly or directly to the car door via a base as means for engaging with an engaged portion on the landing door side when the car door, which is composed of a door hanger and a door panel connected to a lower end of the door hanger and supported by being suspended from the door hanger, moves; and a second engaging body arranged at a predetermined interval from the first engaging body and provided movable in a direction toward and away from the first engaging body, The first engagement body is elongated in the vertical direction, and is disposed on the front side of the door hanger and the front side of the door panel across the connection portion between the door hanger and the door panel, and is divided into an upper engagement body and a lower engagement body at a location corresponding to the connection portion, the lower engagement body is provided so as to be repositionable or removable so as to be separated from the lower end of the upper engagement body; The second engagement body is not divided Elevator landing door engagement device.

4. The lower engagement body is attached using at least one fastener, and has at least one elongated hole as a through-hole for the shaft of the fastener, and can be repositioned away from the lower end of the upper engagement body by loosening the fastener.

4. An elevator landing door engaging device according to claim 1.

5. The lower engagement body is attached using at least two fasteners, and has at least one elongated hole and at least one circular hole as through holes for the shafts of the fasteners. By removing the fastener corresponding to the circular holes and loosening the fastener corresponding to the elongated holes, the lower engagement body can be repositioned away from the lower end of the upper engagement body.

4. An elevator landing door engaging device according to claim 1.

6. The elevator is provided with the landing door engaging device according to any one of claims 1 to 3. Elevator.

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