Elevator door device

Abstract

To provide an elevator door device capable of improving the safety of passengers when a door panel is operated. [Solution] The elevator door device of this embodiment includes a door panel 11 that is provided on an elevator car 1 and configured to be able to open and close, and a safety shoe 30 that is provided on the door panel 11 so as to protrude from an end of the door panel 11 in the opening and closing direction and is configured to detect when an object is caught in the door panel 11. The door panel 11 has a front surface facing the interior of the car 1, a back surface facing the landing, and a side surface between the front surface and the back surface. The side surface is inclined so that the angle with the front surface is an obtuse angle. The safety shoe 30 is configured to protrude beyond the extension line of the side surface.

Description

[Technical Field]

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to an elevator door apparatus. [Background technology]

[0002] The door panels at the entrances and exits of elevator cars are equipped with safety shoes as mechanical detection means for detecting when a passenger is caught in the door panel. A door motor connected to the door panel operates to reverse the door panel when an external force is applied to the safety shoes.

[0003] For example, to ensure safety when a passenger is trapped in a door panel, if the external force (called the pinching force) acting on the door panel exceeds a predetermined value (e.g., 150 N), the door panel is controlled to reverse. The door panel is reversed based on the pinching force estimated from the motor torque. If the door panel is heavy, the inertial force and frictional force acting on the door panel will be large, resulting in a large error in the estimation of the pinching force. If the door panel is controlled with a margin for error, a small pinching force will result in false detection and malfunction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2017-19641 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-312510 [Patent Document 3] Japanese Patent Application Laid-Open No. 2007-119220 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide an elevator door device that can improve the safety of passengers when the door panel is operating. [Means for solving the problem]

[0006] The elevator door device according to the embodiment includes a door panel provided in an elevator car and configured to be openable and closable; and a safety shoe provided on the door panel so as to protrude from an end of the door panel in the opening and closing direction, and configured to detect an object being caught in the door panel. a switch provided on the door panel and configured to operate when the safety shoe is pushed a first distance; The door panel has a front surface facing the interior of the car, a back surface facing the landing, and a side surface between the front surface and the back surface, the side surface being inclined to form an obtuse angle with the front surface, and the safety shoe is configured to protrude beyond an extension line of the side surface. If the first distance is D1, the sliding amount of the door panel from when the switch operates until the door panel starts to reverse is D2, and the movable distance of the safety shoe is D3, D1, D2, and D3 satisfy the following relationship: D1+D2 <D3 [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram of an elevator door device according to a first embodiment. [Figure 2] FIG. 2 is a front view of two door panels and a door opening and closing device. [Figure 3] FIG. 3 is a plan view of the main parts of the door panel and the safety shoe. [Figure 4] FIG. 4 is a front view of two door panels according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments will be described with reference to the drawings. The following embodiments are merely examples of devices and methods for embodying the technical concept of the present invention, and the technical concept of the present invention is not specified by the shape, structure, arrangement, etc. of the components. In the following description, elements having the same function and configuration are designated by the same reference numerals, and duplicated explanations will be omitted.

[0009] [1] First embodiment [1-1] Configuration of elevator door device 10 FIG. 1 is a schematic diagram of an elevator door device 10 according to a first embodiment. The elevator includes a car 1. The car 1 moves up and down in an elevator shaft. The car 1 accommodates passengers.

[0010] The elevator car 1 is provided with an elevator door device 10. The elevator door device 10 includes door panels 11 and 12, a door opening / closing device 13, and a door control device 14. The door panels 11 and 12 are two double-leaf doors. Door panel 11 is the left door panel, and door panel 12 is the right door panel. The left and right sides of the door panels are defined by the direction when viewing the elevator car 1 from the landing. The door panels 11 and 12 open and close from the center to both sides. The door panels 11 and 12 are sometimes called car doors.

[0011] A door opening and closing device 13 is provided above the door panels 11, 12 and on the side of the car 1. The door panels 11, 12 are hung from the door opening and closing device 13. The door opening and closing device 13 opens and closes the door panels 11, 12.

[0012] A door control device 14 is provided on the top of the car 1. The door control device 14 is connected to the door opening and closing device 13 using a plurality of wires. The door control device 14 controls the operation of the door opening and closing device 13.

[0013] 2 is a front view of two door panels 11, 12 and a door opening / closing device 13. The car 1 has a threshold 2. Shoes (not shown) provided on the lower parts of the door panels 11, 12 are inserted into the threshold 2. The door panels 11, 12 move along the threshold 2.

[0014] The door opening and closing device 13 includes a door frame 20, a door motor 21, a belt 22, a rail 23, pulleys 24 and 25, door hangers 26 and 27, and an engagement mechanism 28.

[0015] A rectangular door frame 20 is attached to the top of the entrance of the car 1. A rail 23 is attached to the door frame 20. The rail 23 extends in the horizontal direction. The horizontal direction is the direction in which the car door opens and closes, or the width direction of the car entrance.

[0016] A door motor 21 is provided on the upper part of the door frame 20. Pulleys 24 and 25 are rotatably provided at both ends of a rail 23. A belt 22 is looped around a sheave (not shown) of the door motor 21 and the pulleys 24 and 25.

[0017] A rectangular door hanger 26 is provided on the upper part of the door panel 11. Two hanger rollers (not shown) are rotatably provided on the door hanger 26. The door hanger 26 is suspended from the rail 23 using the hanger rollers. The door hanger 26 is connected to the belt 22 using a connecting member (not shown). The door hanger 26 moves on the rail 23 in accordance with the movement of the belt 22.

[0018] A rectangular door hanger 27 is provided on the upper part of the door panel 12. Two hanger rollers (not shown) are rotatably provided on the door hanger 27. The door hanger 27 is suspended from the rail 23 using the hanger rollers. The door hanger 27 is connected to the belt 22 using a connecting member (not shown). The door hanger 27 moves on the rail 23 in accordance with the movement of the belt 22.

[0019] The door panel 11 is attached to the lower part of the door hanger 26. The door panel 12 is attached to the lower part of the door hanger 27. The door panels 11 and 12 move symmetrically in conjunction with each other in response to the movement of the belt 22.

[0020] The door hanger 26 is provided with an engagement mechanism 28. The engagement mechanism 28 is engaged with the landing door, specifically, with a roller of the landing door. The engagement mechanism 28 moves in conjunction with the opening and closing operation of the car door. The engagement mechanism 28 functions to unlock the landing door and to drive the landing door.

[0021] A safety shoe 30 is provided on the door panel 11. The safety shoe 30 is for detecting a passenger being caught in the car door. The safety shoe 30 extends vertically. The vertical direction is the height direction of the car entrance / exit.

[0022] Links 31 and 32 are provided on the safety shoe 30. Link 31 is disposed relatively on the upper side, and link 32 is disposed relatively on the lower side. One end of link 31 is rotatably supported on the safety shoe 30, and the other end is rotatably supported on the door panel 11. One end of link 32 is rotatably supported on the safety shoe 30, and the other end is rotatably supported on the door panel 11. Links 31 and 32 function to move the safety shoe 30 in parallel.

[0023] An arm 33 is fixed to the end of the link 32 on the door panel 11 side. The arm 33 extends approximately in the extension direction of the link 32.

[0024] A support member 34 is attached to the door panel 11. The support member 34 extends vertically. Stoppers 35, 36 and a switch 37 are attached to the support member 34.

[0025] The stoppers 35, 36 set the range of motion of the safety shoe 30. The stoppers 35, 36 are configured to extend from the support member 34 toward the link 32. The stopper 35 is disposed relatively lower, and the stopper 36 is disposed relatively upper. The stoppers 35, 36 are configured so that the lengths from the support member 34 can be adjusted.

[0026] The stopper 35 has the function of adjusting the amount of protrusion of the safety shoe 30. The amount of protrusion is the horizontal length from the tip of the door panel 11 to the tip of the safety shoe 30. The stopper 35 comes into contact with the arm 33 when the safety shoe 30 is not pressed.

[0027] The stopper 36 has the function of adjusting the movable distance of the safety shoe 30. The movable distance is the distance from when the safety shoe 30 is not pressed to when the safety shoe 30 is pressed and stops. The stopper 36 is positioned so that it comes into contact with the link 32 when the safety shoe 30 is pressed. In other words, the safety shoe 30 is configured so that it cannot be pressed beyond the position where the link 32 comes into contact with the stopper 36.

[0028] The lever of switch 37 is positioned so that it is pressed into arm 33 when safety shoe 30 is not pressed. Switch 37 is turned on when safety shoe 30 is not pressed. Switch 37 is turned off when safety shoe 30 is pressed a predetermined distance.

[0029] A safety shoe 40 is provided on the door panel 12. The safety shoe 40 extends vertically.

[0030] Links 41 and 42 are provided on the safety shoe 40. Link 41 is disposed relatively on the upper side, and link 42 is disposed relatively on the lower side. One end of link 41 is rotatably supported on the safety shoe 40, and the other end is rotatably supported on the door panel 12. One end of link 42 is supported on the safety shoe 40, and the other end is rotatably supported on the door panel 12. Links 41 and 42 function to move the safety shoe 40 in parallel.

[0031] An arm 43 is fixed to the end of the link 42 on the door panel 12 side. The arm 43 extends approximately in the extension direction of the link 42.

[0032] A support member 44 is attached to the door panel 12. The support member 44 extends vertically. Stoppers 45, 46 and a switch 47 are attached to the support member 44.

[0033] The stoppers 45, 46 set the range of motion of the safety shoe 40. The stoppers 45, 46 are configured to extend from the support member 44 toward the link 42. The stopper 45 is disposed relatively lower, and the stopper 46 is disposed relatively upper. The stoppers 45, 46 are configured so that the lengths from the support member 44 can be adjusted.

[0034] The stopper 45 has a function of adjusting the amount of protrusion of the safety shoe 40. The stopper 45 comes into contact with the arm 43 when the safety shoe 40 is not pressed.

[0035] The stopper 46 has the function of adjusting the movable distance of the safety shoe 40. The stopper 46 is disposed at a position where it comes into contact with the link 42 when the safety shoe 40 is pushed in. In other words, the safety shoe 40 is configured so that it cannot be pushed in beyond the position where the link 42 comes into contact with the stopper 46.

[0036] The lever of the switch 47 is positioned so that it is pressed into the arm 43 when the safety shoe 40 is not pressed. The switch 47 is turned on when the safety shoe 40 is not pressed. The switch 47 is turned off when the safety shoe 40 is pressed a predetermined distance.

[0037] An upwardly extending plate 48 is provided on the top of the safety shoe 40. A downwardly extending stopper 29 is provided on the door frame 20. A rotatable roller is provided at the tip of the stopper 29. When the door panels 11, 12 are closed, the plate 48 is pressed by the stopper 29, and the safety shoe 40 is retracted. This prevents the safety shoe 30 and the safety shoe 40 from coming into contact with each other when the door panels 11, 12 are closed.

[0038] The door control device 14 controls the operation of the door panels 11 and 12. The door control device 14 drives the door motor 21 to open and close the door panels 11 and 12. Furthermore, when the switch 47 is turned off, the door control device 14 reverses the door panels 11 and 12.

[0039] [1-2] Detailed configuration of door panels 11, 12 and safety shoes 30, 40 Next, the detailed configurations of the door panels 11, 12 and the safety shoes 30, 40 will be described. Fig. 3 is a plan view of the main parts of the door panel 11 and the safety shoe 30. Fig. 3 is a view from above of the door panel 11, horizontally cut above the link 32. The configurations of the door panel 11 and the safety shoe 30 will be described below, but the configurations of the door panel 12 and the safety shoe 40 are also similar. In other words, the door panel 12 and the safety shoe 40 are configured symmetrically to Fig. 3.

[0040] The door panel 11 has a front surface 11A, a side surface 11B, a first back surface 11C, a step 11D, and a second back surface 11E. The front surface 11A is the surface facing the inside of the elevator car 1. The side surface 11B is the surface facing the opposing door panel 12. The first back surface 11C and the second back surface 11E are surfaces facing the landing and are surfaces where the door panel 11 is folded back.

[0041] The first back surface 11C and the second back surface 11E have a step 11D. In a plan view, the first back surface 11C is located deeper than the second back surface 11E. The depth direction is the direction from the car entrance toward the inside of the car 1. The first back surface 11C is configured to be recessed from the second back surface 11E in the depth direction. In other words, the door panel 11 is configured so that the thickness of the tip portion is thinner.

[0042] The safety shoe 30 is arranged so as to protrude from the end of the door panel 11 in the width direction when no external pushing force is applied to it. The safety shoe 30 has a U-shape in plan view. The safety shoe 30 has two side surfaces and a tip portion (the portion that is mainly hit by an object) that is arranged at a point protruding from the end of the door panel 11.

[0043] A fulcrum 38 is attached to the second rear surface 11E of the door panel 11. The fulcrum 38 extends in the depth direction. A fulcrum 39 is attached to the safety shoe 30. The fulcrum 39 extends in the depth direction so as to be fixed to two side surfaces of the safety shoe 30. One end of the link 32 is rotatably supported by the fulcrum 38, and the other end is rotatably supported by the fulcrum 39. Although specific illustrations are omitted, the configuration of the link 31 is the same as the configuration of the link 32.

[0044] The safety shoe 30 is arranged so that at least a portion of it fits within the door panel 11 when viewed from the opening / closing direction of the car door. The side surface of the safety shoe 30 facing the door panel 11 is located more inward of the second back surface 11E of the door panel 11. In other words, the safety shoe 30 is arranged so that a portion of it fits within the step 11D of the door panel 11.

[0045] The safety shoe 30 may be configured so that its entirety fits within the door panel 11 when viewed from the opening / closing direction of the car door. Specifically, the step 11D is lengthened in the depth direction and an opening is provided in the step 11D. The fulcrum 38 is configured to extend inside the door panel 11. The link 32 is configured to enter the inside of the door panel 11 from the opening of the step 11D. This allows the overall thickness of the door panel 11 and the safety shoe 30 to be reduced.

[0046] The side surface 11B of the door panel 11 is configured to be inclined with respect to the depth direction. The side surface 11B of the door panel 11 is inclined so that the angle between the front surface 11A and the side surface 11B is an obtuse angle. The inclination angle of the side surface 11B with respect to the depth direction is preferably set to be greater than or equal to 10 degrees and less than or equal to 60 degrees. More preferably, the inclination angle of the side surface 11B with respect to the depth direction is set to be greater than or equal to 20 degrees and less than or equal to 50 degrees. The side surface of the door panel 12 has the same configuration as that of the door panel 11. By providing an inclination to the side surface 11B of the door panel 11, if a passenger getting off the car 1 at a landing becomes pinched between the door panels 11 and 12, the passenger can be pushed back into the car 1. This makes it less likely for the passenger to become pinched between the door panels 11 and 12.

[0047] The safety shoe 30 is configured to protrude beyond an extension line L1 of the side surface 11B of the door panel 11. In other words, the intersection of the extension line L1 of the side surface 11B of the door panel 11 and the safety shoe 30 is located closer to the door panel 11 than the tip of the safety shoe 30. The inclination of the side surface 11B of the door panel 11 is set to satisfy the above relationship. The side surface of the door panel 12 has the same configuration as the door panel 11. This prevents passengers from directly hitting the door panel 11 when the safety shoe 30 is pushed.

[0048] The distance from when the safety shoe 30 is not pressed until the switch 47 operates (turns off) when the safety shoe 30 is pressed is defined as the switch operating distance D1. While the safety shoe 30 is pressed, the distance from when the switch 47 operates until the door panel 11 starts to reverse is defined as the door sliding distance D2. If the switch 47 operates while the door panel 11 is closing, the door panel 11 decelerates before reversing. In other words, the door sliding distance D2 is the distance from when the switch 47 operates until the door panel 11 decelerates and stops. The door sliding distance D2 is calculated taking into account the inertial force acting on the door panel 11 and the frictional force of the door panel 11 (specifically, the frictional force between the shoe at the bottom of the door panel 11 and the threshold 2). The inertial force acting on the door panel 11 changes depending on the weight of the door panel 11.

[0049] The distance from when the safety shoe 30 is not pressed until the safety shoe 30 is pressed and the link 32 hits the stopper 36 is defined as the movable distance D3. In other words, the movable distance D3 is the distance from when the safety shoe 30 is not pressed until the safety shoe 30 is pressed and physically stops. The movable distance D3 can be adjusted by the stopper 36. The definition of the distance for the safety shoe 40 is the same as for the safety shoe 30.

[0050] The switch operating distance D1, the door sliding amount D2, and the movable distance D3 are set so as to satisfy the following formula (1). D1+D2 <D3 ···(1)

[0051] Specifically, the gap between the stopper 36 and the link 32 is set so as to satisfy formula (1). By satisfying formula (1), the door panel 11 can be reversed before the link 32 hits the stopper 36. The operation of the door panel 12 is the same as that of the door panel 11.

[0052] [1-3] Modified examples The shape of the side surface 11B of the door panel 11 is not limited to a straight line. The shape of the side surface 11B of the door panel 11 may be a curve, a free curve, or a combination of straight lines and curves in a cross section cut in the horizontal direction.

[0053] [1-4] Effects of the first embodiment According to the first embodiment, the side surface of the door panel 11 is configured to be inclined with respect to the depth direction. Therefore, if a passenger is caught between the door panel 11, the passenger can be pushed back into the car 1. This makes it difficult for the passenger to be caught between the door panel 11. Consequently, an elevator door device 10 can be realized that can improve the safety of passengers when the door panel 11 is operating.

[0054] Furthermore, when the safety shoe 30 is pressed, the door panel 11 reverses before the link 32 comes into contact with the stopper 36 and the safety shoe 30 stops. This makes it possible to prevent the inertial force acting on the door panel 11 from being applied to passengers. This in turn improves the safety of passengers when the door panel 11 is operating.

[0055] Furthermore, when a passenger is pinched between the door panel 11, the only force acting on the door panel 11 is the pushing force of the safety shoe 30. This eliminates the need to control the reversing movement of the door panel 11 by taking into account the inertial force caused by the weight of the door panel 11 and the frictional force of the door panel 11. Furthermore, even when a large door or a heavy door panel such as a glass door is used, it is no longer necessary to control the door panel 11 due to the pinching force, thereby avoiding false detection and malfunction.

[0056] In addition, the safety shoe 30 is configured to fit into a step 11D provided on the back surface of the door panel 11. Therefore, the thickness of the car door (including the door panel and the safety shoe) can be made thinner by the amount of the step 11D of the door panel 11.

[0057] [2] Second embodiment The second embodiment is another example of the configuration of the safety shoe mechanism.

[0058] 4 is a front view of two door panels 11 and 12 according to the second embodiment. Although not shown, door hangers 26 and 27 are attached to the door panels 11 and 12, respectively.

[0059] A link 31 is provided on the safety shoe 30. One end of the link 31 is rotatably supported on the safety shoe 30, and the other end is rotatably supported on the door panel 11. Stoppers 36 and 50 are provided on the door panel 11. Stopper 50 is disposed relatively on the upper side, and stopper 36 is disposed relatively on the lower side. Stoppers 36 and 50 have the function of adjusting the movable distance of the safety shoe 30.

[0060] A link 32 is provided on the safety shoe 30. One end of the link 32 is rotatably supported on the safety shoe 30, and the other end is rotatably supported on a fulcrum 51. The fulcrum 51 is fixed to the door panel 11. An arm 33 is fixed to the end of the link 32 on the door panel 11 side. The arm 33 extends approximately in the extension direction of the link 32.

[0061] A driven link 52 is rotatably supported on the fulcrum 51. A stopper 35 is provided on the driven link 52. The stopper 35 is configured to extend from near the center of the driven link 52 toward the arm 33. The stopper 35 comes into contact with the arm 33 when the safety shoe 30 is not pressed. The stopper 35 has the function of adjusting the amount of protrusion of the safety shoe 30.

[0062] A switch 37 is provided on the driven link 52. The lever of the switch 37 is positioned so that it is pressed into the arm 33 when the safety shoe 30 is not pressed. A roller 53 is provided on the upper part of the driven link 52.

[0063] A cam 54 is disposed above the driven link 52 so as to be in contact with the roller 53. The cam 54 has an approximately fan shape. The cam 54 is rotatably supported on a fulcrum 55. The fulcrum 55 is fixed to the door panel 11. One end of a double link 56 is attached to the cam 54. The other end of the double link 56 is rotatably supported on the car 1. The double link 56 is formed by two links (arms) connected by a joint.

[0064] A link 41 is provided on the safety shoe 40. One end of the link 41 is rotatably supported on the safety shoe 40, and the other end is rotatably supported on the door panel 12. Stoppers 46 and 60 are provided on the door panel 12. The stopper 60 is disposed relatively on the upper side, and the stopper 46 is disposed relatively on the lower side. The stoppers 46 and 60 have the function of adjusting the movable distance of the safety shoe 40.

[0065] A link 42 is provided on the safety shoe 40. One end of the link 42 is rotatably supported on the safety shoe 40, and the other end is rotatably supported on a fulcrum 61. The fulcrum 61 is fixed to the door panel 12. An arm 43 is fixed to the end of the link 42 on the door panel 12 side. The arm 43 extends approximately in the extension direction of the link 42.

[0066] A driven link 62 is rotatably supported on the fulcrum 61. A stopper 45 is provided on the driven link 62. The stopper 45 is configured to extend from near the center of the driven link 62 toward the arm 43. The stopper 45 comes into contact with the arm 43 when the safety shoe 40 is not pressed. The stopper 45 has the function of adjusting the amount of protrusion of the safety shoe 40.

[0067] A switch 47 is provided on the driven link 62. The lever of the switch 47 is positioned so that it is pressed into the arm 43 when the safety shoe 40 is not pressed. A roller 63 is provided on the upper part of the driven link 62.

[0068] A cam 64 is disposed above the driven link 62 so as to be in contact with the roller 63. The cam 64 has an approximately sector shape. The cam 64 is rotatably supported on a fulcrum 65. The fulcrum 65 is fixed to the door panel 12. One end of a double link 66 is attached to the cam 64. The other end of the double link 66 is rotatably supported on the car 1.

[0069] Due to the shapes of the cams 54, 64, the safety shoes 30, 40 are adjusted so that the amount of protrusion is small when the door panels 11, 12 are fully closed and fully open, and are adjusted so that the amount of protrusion is large when the door panels 11, 12 are halfway open and halfway open. In the configuration example of Fig. 4, when the door panels are fully closed, the safety shoe 30 remains protruding, and the amount of protrusion of the safety shoe 40 is adjusted.

[0070] The shape of the tip of the door panels 11, 12 is the same as in the first embodiment. The relationship between the switch operating distance D1, the door sliding amount D2, and the movable distance D3 is the same as in the first embodiment. The movable distance D3 can be adjusted by the stoppers 36, 50 (46, 60).

[0071] In the second embodiment, the same effects as in the first embodiment can be obtained.

[0072] The safety shoe mechanism may also be of another type, such as a linear slide mechanism in which a pin fitted into a linear slot slides along the slot.

[0073] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0074] 1...car, 2...threshold, 10...elevator door device, 11, 12...door panel, 13...door opening / closing device, 14...door control device, 20...door frame, 21...door motor, 22...belt, 23...rail, 24, 25...pulley, 26, 27...door hanger, 28...engagement mechanism, 29...stopper, 30...safety shoe, 31, 32...link, 33...arm, 34...support member, 35, 36...stopper, 37...s switch, 38, 39...fulcrum, 40...safety shoe, 41, 42...link, 43...arm, 44...support member, 45, 46...stopper, 47...switch, 48...plate, 50...stopper, 51...fulcrum, 52...driven link, 53...roller, 54...cam, 55...fulcrum, 56...double link, 60...stopper, 61...fulcrum, 62...driven link, 63...roller, 64...cam, 65...fulcrum, 66...double link.

Claims

1. a door panel provided in an elevator car and configured to be openable and closable; a safety shoe provided on the door panel so as to protrude from an end in the opening and closing direction of the door panel, and configured to detect an object being caught in the door panel; a switch mounted on the door panel and configured to operate when the safety shoe is pushed a first distance; Equipped with the door panel has a front surface facing the interior of the elevator car, a back surface facing a landing, and a side surface between the front surface and the back surface, the side surface is inclined so that the angle with the front surface is an obtuse angle, The safety shoe is configured to protrude beyond an extension line of the side surface, When the first distance is D1, the sliding amount of the door panel from when the switch is operated until the door panel starts to reverse is D2, and the movable distance of the safety shoe is D3, D1, D2, and D3 satisfy the following relational expression: D1 + D2 < D3 Elevator door device.

2. the rear surface has a step, The safety shoe is disposed so as to fit into the step.

2. The elevator door assembly of claim 1.

3. a link connected to the door panel and the safety shoe; a first stopper for adjusting the amount by which the safety shoe protrudes from the door panel; a second stopper for adjusting the movable distance of the safety shoe; a control device that reverses the door panel when the switch is activated; Further comprising 2. The elevator door assembly of claim 1.

4. The first stopper and the second stopper are configured to satisfy the movable distance.

4. The elevator door assembly according to claim 3.

5. The door panel further includes a motor for driving the door panel.

2. The elevator door assembly of claim 1.

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