Elevator Equipment

Abstract

In this elevator device, an auxiliary unlocking device is provided to a hoistway, and has a movable member that can move in a direction parallel to an opening-and-closing operation direction of a car door, and a guide member that guides the movement of the movable member. When the movable member is positioned in an unlocking position, the auxiliary unlocking device causes a car door locking device to permit an opening operation of the car door through the car door locking device making contact with the movable member instead of an unlocking member in an interlock device.

Description

[Technical field]

[0001] The present disclosure relates to elevator systems. [Background technology]

[0002] In a conventional elevator system, a car is provided with a car door lock device. When the car stops outside the door opening area, the car door lock device mechanically prevents the car door from being moved in the opening direction by an operation from inside the car (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4292207 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional elevator system described above, for example, when performing maintenance work on a device installed at the top of the elevator shaft, a worker moves from the landing to the car and lands the car on the top floor. The worker then fixes the car to the elevator shaft using a fixing device. The fixing device is, for example, hooked onto the backing of the guide rail.

[0005] After the locking device is applied to the backing, if the brake is released, the car may move upwards or downwards, causing the locking device to engage with the backing and making it difficult to remove the locking device from the backing.

[0006] In such a case, a worker can enter the car through the ceiling rescue exit and manually move the car door and the landing door in the opening direction, thereby escaping to the landing.

[0007] On the other hand, when the car is stopped outside the door-opening area, the car door lock device prevents the car door from being manually opened. Therefore, when performing maintenance work on the car, it is necessary to keep the car stopped in the door-opening area, and if the distance from the car to the equipment to be maintained is large, workability decreases.

[0008] The present disclosure has been made to solve the above-mentioned problems, and has an object to provide an elevator system that can improve the workability of maintenance work on the car. [Means for solving the problem]

[0009] The elevator system disclosed herein includes a car that moves up and down in a hoistway, a car door provided in the car, a landing door provided at a landing, and an unlocking member, and an interlock device that prevents the landing door from opening, a car door locking device that is provided in the car and prevents the car door from opening when the car is located outside the door-opening area and allows the car door to open by contacting the unlocking member when the car is located within the door-opening area, and unlocks the interlock device, and an auxiliary unlocking device that has a movable member that is movable in a direction parallel to the opening and closing direction of the car door and a guide member that guides the movement of the movable member and is provided in the hoistway, and when the movable member is located in the unlocked position where it overlaps with the unlocking member when viewed from directly above, the car door locking device contacts the movable member instead of the unlocking member, thereby allowing the car door to open. Effect of the Invention

[0010] According to the elevator apparatus of the present disclosure, the workability of maintenance work on the car can be improved. [Brief description of the drawings]

[0011] [Figure 1] 1 is a schematic configuration diagram showing an elevator apparatus according to a first embodiment. [Diagram 2]2 is a front view of a landing door device on a floor other than the top floor in FIG. 1, as viewed from the elevator shaft side. FIG. [Diagram 3] FIG. 2 is a front view of the car door device of FIG. 1 as viewed from the landing side. [Figure 4] 4 is a front view showing a state in which the car door of FIG. 3 is about to be moved in the opening direction outside the door opening area. FIG. [Diagram 5] 2 is a front view of the landing door device on the top floor in FIG. 1 as viewed from the elevator shaft side. FIG. [Figure 6] 6 is an enlarged front view showing the auxiliary unlocking device and the interlock device of FIG. 5. [Figure 7] 7 is a side view showing the conveying body and the movable member of FIG. 6. [Figure 8] 7 is a front view showing a state in which the movable member in FIG. 6 has been moved to a standby position. [Figure 9] 7 is a front view showing a state in which the conveying body and the movable member in FIG. 6 have moved in the opening direction of the first car door. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, embodiments will be described with reference to the drawings. Embodiment 1 Fig. 1 is a schematic diagram showing an elevator apparatus according to embodiment 1. In the figure, a support beam 2 is provided at the top of a hoistway 1. A hoisting machine 3 is supported on the support beam 2. The hoisting machine 3 has a hoisting machine main body 4 and a drive sheave 5.

[0013] The hoist body 4 has a hoist motor (not shown) and a hoist brake (not shown). The hoist motor rotates the drive sheave 5. The hoist brake keeps the drive sheave 5 stationary. The hoist brake also brakes the rotation of the drive sheave 5.

[0014] A suspension body (not shown) is wound around the drive sheave 5. As the suspension body, a plurality of ropes or a plurality of belts are used.

[0015] A car 6 and a counterweight (not shown) are provided in the hoistway 1. The car 6 and the counterweight are suspended by a suspension body, and move up and down in the hoistway 1 by rotating the drive sheave 5.

[0016] A plurality of guide rails (not shown) are installed in the elevator shaft 1. The plurality of guide rails guide the elevation and descent of the car 6 and the counterweight. The support beam 2 is supported by two or more of the plurality of guide rails.

[0017] A car door device is provided in the car 6. The car door device has a first car door 7a and a second car door 7b. The first car door 7a and the second car door 7b open and close the car entrance.

[0018] A landing door device is provided at each of the landings on the multiple floors. Each landing door device has a first landing door 8a and a second landing door 8b. At each landing, the first landing door 8a and the second landing door 8b open and close the corresponding landing entrance / exit.

[0019] In addition, at each landing, the first landing door 8a and the second landing door 8b are opened and closed in conjunction with the first car door 7a and the second car door 7b when the car 6 lands on the floor.

[0020] FIG. 2 is a front view of the landing door device on a floor other than the top floor in FIG. 1, as viewed from the elevator shaft 1 side.

[0021] A landing door frame 11 is fixed to an upper portion of the landing entrance. A landing door rail 12 is provided on the landing door frame 11. The landing door rail 12 is parallel to the width direction of the landing entrance and is horizontal. The width direction of the landing entrance is a direction parallel to the opening and closing operation direction of the first landing door 8a and the second landing door 8b, and is the left-right direction in FIG. 2.

[0022] A first landing door pulley 13 is provided at a first end of the landing door frame 11 in the width direction of the landing entrance. A second landing door pulley 14 is provided at a second end of the landing door frame 11 in the width direction of the landing entrance. An endless interlocking rope 15 is wound around the first landing door pulley 13 and the second landing door pulley 14.

[0023] Each of the first landing door 8a and the second landing door 8b has a landing door panel 16 and a landing door hanger 17. Each landing door hanger 17 is fixed to an upper portion of the corresponding landing door panel 16.

[0024] Each landing door hanger 17 is provided with a plurality of landing door rollers 18 and a plurality of up thrust rollers (not shown). Each landing door roller 18 moves while rolling on the landing door rail 12 when the first landing door 8a and the second landing door 8b are opened or closed. The first landing door 8a and the second landing door 8b are suspended from the landing door rail 12 and open or close along the landing door rail 12.

[0025] Each up thrust roller is disposed directly below the corresponding landing door roller 18. In addition, each up thrust roller prevents the corresponding landing door roller 18 from falling off the landing door rail 12.

[0026] The first landing door 8a is connected to a lower portion of the interlocking rope 15 via a first landing door connecting metal fitting 19. The second landing door 8b is connected to an upper portion of the interlocking rope 15 via a second landing door connecting metal fitting 20.

[0027] When the interlocking rope 15 circulates due to the opening and closing operation of the first landing door 8a, the second landing door 8b moves in the opposite direction to the first landing door 8a.

[0028] An interlock device 21 is provided between the first landing door 8a and the landing door frame 11. The interlock device 21 prevents the first landing door 8a and the second landing door 8b from being opened.

[0029] The interlock device 21 has a latch 22, an interlock latch 23, a fixed interlock roller 24, and a movable interlock roller 25 which is an unlocking member.

[0030] The latch 22 is fixed to the landing door frame 11. The interlock latch 23 is rotatably attached to the landing door hanger 17 of the first landing door 8a. When the first landing door 8a and the second landing door 8b are in the fully closed position, a tip end of the interlock latch 23 is caught by the latch 22, thereby preventing the first landing door 8a and the second landing door 8b from being opened.

[0031] The fixed interlock roller 24 is disposed coaxially with the rotation axis of the interlock latch 23. The movable interlock roller 25 is attached to the interlock latch 23. The interlock latch 23 and the movable interlock roller 25 rotate around the rotation axis of the interlock latch 23.

[0032] Fig. 3 is a front view of the car door device in Fig. 1 as viewed from the landing side. A car door frame 31 is fixed to the upper part of the car entrance. A car door rail 32 is provided on the car door frame 31. The car door rail 32 is parallel to the width direction of the car entrance and is horizontal. The width direction of the car entrance is a direction parallel to the opening and closing operation direction of the first car door 7a and the second car door 7b, and is the left-right direction in Fig. 3.

[0033] A first car door pulley 33 is provided at a first end of the car door frame 31 in the width direction of the car entrance. A second car door pulley 34 is provided at a second end of the car door frame 31 in the width direction of the car entrance. An endless drive belt 35 is wound around the first car door pulley 33 and the second car door pulley 34.

[0034] Each of the first car door 7a and the second car door 7b has a car door panel 36 and a car door hanger 37. Each car door hanger 37 is fixed to an upper portion of the corresponding car door panel 36. The first car door 7a and the second car door 7b are suspended from a car door rail 32, and operate to open and close along the car door rail 32.

[0035] The first car door 7a is connected to a lower portion of the drive belt 35 via a first car door connecting fitting 38. The second car door 7b is connected to an upper portion of the drive belt 35 via a second car door connecting fitting 39.

[0036] A door motor 40 is fixed on the car door frame 31. Rotation of the door motor 40 is transmitted to the first car door pulley 33. When the first car door pulley 33 rotates, the drive belt 35 circulates and the second car door pulley 34 rotates. This causes the first car door 7a and the second car door 7b to open and close.

[0037] A support plate 44 is fixed to the first car door 7a. A door stop side blade 46 having an L-shaped cross section is attached to the support plate 44 via a first parallel link mechanism 45. The door stop side blade 46 is disposed vertically.

[0038] The first parallel link mechanism 45 has a rod-shaped first upper link 47 and an L-shaped first lower link .

[0039] The upper end of the first upper link 47 is attached to the support plate 44 so as to be rotatable around a rotation shaft 47a. The lower end of the first upper link 47 is rotatably connected to the middle part of the door stop side blade 46.

[0040] An intermediate portion of the first lower link 48 is attached to the support plate 44 so as to be rotatable about a rotation shaft 48a. A first end portion of the first lower link 48 is rotatably connected to a lower end portion of the door stopper side blade 46.

[0041] The portion from the middle to the second end of the first lower link 48 intersects with the door stop side blade 46. As a result, the second end of the first lower link 48 protrudes from the door stop side blade 46 on the opposite side to the rotation shaft 48a.

[0042] A hook-shaped locking portion 48b is provided at the second end of the first lower link 48. A guide roller 41 is rotatably attached between the locking portion 48b and the portion of the first lower link 48 that intersects with the door stop side blade 46. The first lower link 48 is rotatably displaceable between the unlocked position shown in FIG. 3 and the locked position shown in FIG. 4 in conjunction with the movement of the door stop side blade 46.

[0043] A fixed locking element 42 and a guide cam 49 are fixed to the second car door 7b.

[0044] A horizontal guide surface is formed on the upper surface of the guide cam 49. When the first car door 7a and the second car door 7b are in a fully closed state, the guide roller 41 is positioned on the guide surface of the guide cam 49, and the locking portion 48b is positioned in the unlocked position shown in FIG.

[0045] When an attempt is made to move the first car door 7a or the second car door 7b in the opening direction without applying an external force to the first lower link 48, the guide roller 41 moves away from the guide cam 49, and the locking portion 48b moves to the locked position, as shown in Fig. 4. In this state, the locking portion 48b gets caught on the fixed locking element 42, and the opening operation of the first car door 7a and the second car door 7b is prevented.

[0046] The door stopper blade 46 can be displaced horizontally with respect to the first car door 7a between an unlocking position shown in Fig. 3 and a locking position shown in Fig. 4 by rotation of the first upper link 47 and the first lower link 48. The locking position is a position closer to the door pocket than the unlocking position.

[0047] Furthermore, the door stop side blade 46 is constantly subjected to a force toward the door pocket side, i.e., the locking position side, due to the action of gravity or spring force. However, when the first car door 7a and the second car door 7b are in a fully closed state, the guide roller 41 is positioned on the guide cam 49. As a result, the first lower link 48 is held in the unlocking position, and the door stop side blade 46 is held on the door stop side, i.e., the unlocking position side.

[0048] A limiting member 50 is provided on the support plate 44. The limiting member 50 limits the movable range of the door stop side blade 46 toward the door stop side. The limiting member 50 is disposed so that a small gap is secured between the door stop side blade 46 and the limiting member 50 when the first car door 7a and the second car door 7b are in a fully closed state. For this reason, when the door stop side blade 46 comes into contact with the limiting member 50, a small gap is generated between the guide cam 49 and the guide roller 41.

[0049] A door pocket side blade 53 having an L-shaped cross section is attached to the support plate 44 via a second parallel link mechanism 52. The second parallel link mechanism 52 has a second upper link 54 and a second lower link 55.

[0050] An intermediate portion of the second upper link 54 is attached to the support plate 44 so as to be rotatable about a rotation shaft 54a. A first end portion of the second upper link 54 is rotatably connected to an intermediate portion of the door pocket side blade 53.

[0051] A first end of the second lower link 55 is attached to the support plate 44 so as to be rotatable around a rotation shaft 55a. A second end of the second lower link 55 is rotatably connected to the lower end of the door pocket side blade 53.

[0052] The door pocket side blade 53 is disposed parallel to, i.e., vertically to, the door stop side blade 46. In addition, the door pocket side blade 53 is capable of being displaced in the horizontal direction by the rotation of the second upper link 54 and the second lower link 55.

[0053] A lever 56 is provided on an upper portion of the first car door 7a. The lever 56 is rotatable about a rotation shaft 56a. The rotation shaft 56a is disposed in a middle portion of the lever 56. A lever roller 57 is provided on a first end portion of the lever 56.

[0054] A roller guide 58 is fixed to the car door frame 31. A lever roller 57 abuts against the roller guide 58 when the first car door 7a is in the closed position.

[0055] A connecting rod 59 is connected between the second end of the lever 56 and the second end of the second upper link 54. The door pocket side blade 53 is constantly pressed toward the door stopper side by the action of gravity or spring force.

[0056] When the first car door 7 a is in the closed position, the lever roller 57 abuts against the roller guide 58 , and the door pocket side blade 53 is separated from the fixed side interlock roller 24 and the movable side interlock roller 25 .

[0057] 3, the door pocket side blade 53 is displaced toward the door stop side blade 46. Then, the gap between the door stop side blade 46 and the door pocket side blade 53 becomes smaller, and the fixed side interlock roller 24 and the movable side interlock roller 25 are gripped between the door stop side blade 46 and the door pocket side blade 53.

[0058] It should be noted that the configuration in which the door pocket side blade 53 is horizontally displaceable is not essential, and the door pocket side blade 53 may be fixed to the first car door 7a.

[0059] The cage door locking device 60 in embodiment 1 has a support plate 44, a first parallel link mechanism 45, a door stop side blade 46, a guide roller 41, a fixed locking element 42, a guide cam 49, a limiting member 50, a second parallel link mechanism 52, a door pocket side blade 53, a lever 56, a lever roller 57, a roller guide 58, and a connecting rod 59.

[0060] The car door locking device 60 is provided in the car 6, and prevents the opening operation of the first car door 7a and the second car door 7b when the car 6 is located outside the door-opening area. The door-opening area is an area in which the opening operation of the first car door 7a and the second car door 7b is permitted when the car 6 lands on the floor during the ascending or descending stroke of the car 6.

[0061] In addition, when the car 6 is located within the door-opening area, the car door locking device 60 contacts the movable interlock roller 25, thereby allowing the first car door 7a and the second car door 7b to open and unlocking the interlock device 21.

[0062] Fig. 5 is a front view of the landing door device on the top floor in Fig. 1, seen from the elevator shaft 1 side. The configuration of the landing door device on the top floor is the same as the configuration of the landing door devices on the floors other than the top floor. For this reason, in Fig. 5, the configuration of the landing door device other than the first landing door 8a, the second landing door 8b, the landing door frame 11, and the interlock device 21 is omitted.

[0063] An auxiliary unlocking device 61 is provided in the elevator shaft 1. The auxiliary unlocking device 61 in the first embodiment is disposed above the interlock device 21 of the landing door device on the top floor.

[0064] The auxiliary unlocking device 61 has a guide member 62, a first fixed leg 63, a second fixed leg 64, a carrier 65, a movable member 66, a stopper 67 as a positioning member, and a spring 68 for preventing misalignment.

[0065] The guide member 62 is attached onto the landing door frame 11 via a first fixed leg 63 and a second fixed leg 64. The first fixed leg 63 and the second fixed leg 64 are disposed at an interval from each other in the width direction of the landing entrance. The guide member 62 is disposed parallel to and horizontally in the width direction of the landing entrance.

[0066] The conveyor 65 is supported by a guide member 62. The conveyor 65 is movable along the guide member 62 in a direction parallel to the opening / closing direction of the first car door 7a, that is, in the width direction of the landing entrance / exit.

[0067] The movable member 66 is provided on the conveyor 65. This allows the movable member 66 to move along the guide member 62 in a direction parallel to the opening / closing direction of the first car door 7a. That is, the guide member 62 guides the movement of the movable member 66.

[0068] In the first embodiment, the same roller as the movable interlock roller 25 is used as the movable member 66. Therefore, the diameter of the movable member 66 is the same as the diameter of the movable interlock roller 25.

[0069] The stopper 67 is attached to the guide member 62. In addition, the stopper 67 positions the movable member 66 at the unlocked position. The unlocked position is a position where the movable member 66 overlaps the movable interlock roller 25 when viewed from directly above.

[0070] The anti-misalignment spring 68 is provided between the second fixed leg 64 and the carrier 65. The anti-misalignment spring 68 applies a force to the carrier 65 in a direction to contact the stopper 67. That is, the anti-misalignment spring 68 applies a force to the movable member 66 via the carrier 65 in a direction to approach the stopper 67. The anti-misalignment spring 68 in the first embodiment is a tension spring. The carrier 65 contacts the stopper 67, thereby positioning the movable member 66 in the unlocked position.

[0071] When the movable member 66 is located in the unlocked position, the auxiliary unlocking device 61 allows the car door locking device 60 to open the first car door 7a by causing the car door locking device 60 to contact the movable member 66 instead of the movable side interlock roller 25.

[0072] Fig. 6 is an enlarged front view showing the auxiliary unlocking device 61 and the interlock device 21 of Fig. 5, in which the auxiliary unlocking device 61 and the interlock device 21 are shown close to each other. Fig. 7 is a side view showing the carrier 65 and the movable member 66 of Fig. 6.

[0073] 5 and 6, the movable member 66 is located at the unlocked position. Therefore, the vertical line C1 passing through the center of the movable member 66 passes through the center of the movable interlock roller 25.

[0074] The conveying body 65 has a plate 71, a pair of main rollers 72, and a pair of auxiliary rollers 73. The movable member 66, the pair of main rollers 72, and the pair of auxiliary rollers 73 are provided on the plate 71. The pair of main rollers 72 and the pair of auxiliary rollers 73 are disposed on the opposite side of the plate 71 to the movable member 66.

[0075] The pair of main rollers 72 move while rolling on the guide member 62 when moving the conveyor 65. Each auxiliary roller 73 is disposed directly below the corresponding main roller 72. In addition, each auxiliary roller 73 prevents the corresponding main roller 72 from falling off the guide member 62.

[0076] The guide member 62 may be a rail member similar to the landing door rail 12. The main rollers 72 may be rollers similar to the landing door rollers 18. The auxiliary rollers 73 may be rollers similar to the up thrust rollers. This makes it possible to suppress an increase in the number of types of parts.

[0077] Fig. 8 is a front view showing a state in which the movable member 66 in Fig. 6 has been moved to the standby position. The standby position is a position away from the unlocked position and away from the unlocked position in the closing direction of the first landing door 8a. Therefore, in Fig. 8, the straight line C1 is away from the movable interlock roller 25.

[0078] The stopper 67 can be selectively attached to the guide member 62 at either a first position shown in Fig. 6 or a second position shown in Fig. 8. The first position is a position for positioning the movable member 66 at the unlocking position. The second position is a position for positioning the movable member 66 at the standby position.

[0079] The stopper 67 in the first embodiment is screwed to the guide member 62. The guide member 62 is provided with a screw hole at the first position and the second position.

[0080] When the movable member 66 is positioned in the standby position, even if the car door locking device 60 is positioned in the same vertical position as the movable member 66, the car door locking device 60 does not come into contact with the movable member 66, and therefore the opening operation of the first car door 7a and the second car door 7b is prevented.

[0081] When the movable member 66 is in the unlocked position, if the car door locking device 60 is positioned in the same vertical position as the movable member 66, the car door locking device 60 comes into contact with the movable member 66, thereby allowing the opening operation of the first car door 7a and the second car door 7b. At this time, the movable member 66 and the conveyor 65 move together with the first car door 7a from the unlocked position in the opening direction of the first car door 7a, as shown in Fig. 9.

[0082] When the car 6 is moved above the door-opening area on the top floor to perform maintenance work on the car 6, the worker moves the movable member 66 to the unlocking position before moving the car 6 above the door-opening area.

[0083] If the car 6 becomes unable to move during maintenance work on the car 6, the worker moves into the car from the ceiling rescue exit and manually moves the first car door 7a and the second car door 7b in the opening direction. At this time, the car door locking device 60 hits the movable member 66, allowing the first car door 7a and the second car door 7b to open.

[0084] After moving the first car door 7a and the second car door 7b in the opening direction to a certain extent, the worker uses a door fixing jig (not shown) to prevent the first car door 7a and the second car door 7b from moving in the closing direction. After that, the worker manually unlocks the interlock device 21, manually moves the first landing door 8a and the second landing door 8b in the opening direction, and escapes to the landing.

[0085] The position of the car 6 when the car door locking device 60 allows the first car door 7a and the second car door 7b to be opened by the auxiliary unlocking device 61 is defined as the auxiliary unlocking position. When the car 6 is located at the auxiliary unlocking position, the car entrance partially overlaps with the nearest landing entrance as viewed from inside the car 6. In addition, when the car 6 is located at the auxiliary unlocking position, the interlock device 21 faces the car entrance.

[0086] In such an elevator system, when the movable member 66 is located in the unlocked position, the car door locking device 60 comes into contact with the movable member 66 instead of the movable side interlock roller 25, thereby allowing the first car door 7a to open.

[0087] Therefore, even if outside the door-opening area, as long as the movable member 66 is in a position where the car door locking device 60 abuts, the car 6 can be stopped and maintenance work on the hoistway equipment can be performed from above the car 6. This allows the car 6 to be brought closer to the hoistway equipment for maintenance work to be performed, improving the ease of maintenance work on the car 6.

[0088] Furthermore, when the hoist 3 is disposed at a position overlapping with the car 6 when viewed from directly above, the hoist 3 is installed above the expected position of the car 6 when the car 6 bounces up. Even in such a case, maintenance work on the hoist 3 can be performed near the hoist 3, improving the workability of the maintenance work.

[0089] In addition, the effort required to bring a stepladder or platform onto the car 6 in order to perform maintenance work on elevator shaft equipment installed at a position away from the car 6 can be reduced.

[0090] Furthermore, the movable member 66 is positioned at the unlocked position by the stopper 67. Therefore, the movable member 66 can be easily positioned at the unlocked position.

[0091] Further, the displacement prevention spring 68 applies a force to the movable member 66 in a direction approaching the stopper 67. Therefore, the movable member 66 can be easily held in the unlocked position.

[0092] Furthermore, the stopper 67 can be selectively attached to either the first position or the second position with respect to the guide member 62. Therefore, during normal operation, the movable member 66 can be easily positioned at the standby position.

[0093] In addition, the guide member 62 is attached onto the landing door frame 11. Therefore, the auxiliary unlocking device 61 can be easily installed in the elevator shaft 1. In addition, the auxiliary unlocking device 61 can be easily positioned at an appropriate position relative to the landing entrance and the interlock device 21.

[0094] In addition, the auxiliary unlocking device 61 is disposed above the interlock device 21 on the top floor. This makes it possible to easily perform maintenance work on the elevator equipment installed at the top of the elevator 1.

[0095] The configuration of the car door locking device 60 is not limited to the above configuration.

[0096] Furthermore, the movable member 66 is not limited to a roller.

[0097] Further, the configuration of the conveyor 65 is not limited to the above configuration, and may be configured to slide along the guide member 62, for example.

[0098] Moreover, the movable member 66 and the conveying body 65 may be configured as one component.

[0099] Furthermore, the positioning member is not limited to the stopper 67 .

[0100] Furthermore, the method of attaching the positioning member to the guide member 62 is not limited to screw fastening.

[0101] Further, the installation position of the auxiliary unlocking device 61 is not limited to above the top floor landing, but may be on an intermediate floor.

[0102] In addition, the auxiliary unlocking device 61 may be attached to a structure or equipment other than the landing door frame 11. For example, the first fixed leg 63 and the second fixed leg 64 may be fixed to a hoistway wall.

[0103] Furthermore, the objects of maintenance work are not limited to the hoisting machine 3, but may be a control panel, a governor, a return pulley, a cleat, etc.

[0104] Furthermore, the layout of the elevator apparatus is not limited to the layout in Fig. 1. For example, the hoisting machine 3 may be installed at a location other than the top of the hoistway 1.

[0105] The elevator system may be an elevator system having a machine room, a double-deck elevator, a one-shaft multi-car elevator, etc. The one-shaft multi-car system is a system in which an upper car and a lower car arranged directly below the upper car independently ascend and descend in a common elevator shaft. [Explanation of symbols]

[0106] 1 elevator shaft, 6 car, 7a first car door, 7b second car door, 8a first landing door, 8b second landing door, 11 landing door frame, 12 landing door rail, 21 interlock device, 25 movable interlock roller (unlocking member), 60 car door locking device, 61 auxiliary unlocking device, 62 guide member, 66 movable member, 67 stopper (positioning member), 68 misalignment prevention spring.

Claims

1. A car ascending and descending the elevator, a car door provided in the car; A landing door installed at the landing, an interlock device having an unlocking member and preventing the landing door from being opened; a car door locking device that is provided in the car, and that prevents an opening operation of the car door when the car is located outside a door-opening area, and allows the opening operation of the car door and unlocks the interlock device by hitting the unlocking member when the car is located within the door-opening area; and a movable member movable in a direction parallel to the opening and closing direction of the car door and a guide member for guiding the movement of the movable member; and Equipped with The auxiliary unlocking device is an elevator apparatus in which, when the movable member is located in an unlocked position where it overlaps with the unlocking member when viewed from directly above, the car door locking device contacts the movable member instead of the unlocking member, thereby allowing the car door locking device to open the car doors.

2. 2. The elevator system according to claim 1, wherein the auxiliary unlocking device further comprises a positioning member for positioning the movable member at the unlocking position.

3. the positioning member is a stopper, 3. The elevator system according to claim 2, wherein the auxiliary unlocking device further comprises an anti-displacement spring that applies a force to the movable member in a direction approaching the stopper.

4. 4. An elevator apparatus according to claim 2 or claim 3, wherein the positioning member is selectively attachable to either a first position that positions the movable member at the unlocked position relative to the guide member, or a second position that positions the movable member at a standby position that is a position away from the unlocked position.

5. A landing door frame having a landing door rail for guiding the opening and closing operation of the landing door. Further equipped with The elevator apparatus according to any one of claims 1 to 3, wherein the guide member is attached on the landing door frame.

6. 4. The elevator system according to claim 1, wherein the auxiliary unlocking device is disposed above the interlock device on the top floor.

Images