Elevator entrance / exit device

Abstract

To provide an elevator doorway device capable of reducing the time and labor of installation work.SOLUTION: A movable regulation member 31 can vertically move between a regulating position and a releasing position with respect to a floor part 25 in conjunction with opening / closing motions of a pair of elevator doors 22. The regulating position is a position at which the movable regulation member 31 projects upward from the floor part 25. The releasing position is a position lower than the regulating position. The movable regulation member 31 is positioned at the regulating position when the elevators 22 are positioned at fully closed positions. The movable regulation member 31 faces an outer surface 22a of each elevator door 22 when positioning at the regulating position, and regulates displacement of a lower end of each elevator door 22 to a hoistway 1 side.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an elevator entrance / exit device. [Background technology]

[0002] In conventional elevator door systems, a threshold is provided at the bottom of the doorway. The threshold has a threshold groove. The doorway is opened and closed by a door. The door has a door panel and multiple door legs. Each door leg is provided at the bottom end of the door panel and inserted into the threshold groove.

[0003] A movable blocking body is also provided on the threshold. The movable blocking body is displaceable between a blocking position and an open position. The blocking position is a position where it blocks the opening of the threshold groove. The open position is a position below the blocking position where it opens the opening of the threshold groove (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-1482 Summary of the Invention [Problem to be solved by the invention]

[0005] In the conventional elevator door system described above, a threshold groove is provided in the threshold, and the legs of the multiple doors are inserted into the threshold groove. Therefore, in order to properly adjust the gap between the legs of the multiple doors and the inner surface of the threshold groove, delicate position adjustment between the doors and the threshold is required during installation, which makes the installation of the door system time-consuming.

[0006] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an elevator entrance / exit device that can reduce the effort required for installation work. [Means for solving the problem]

[0007] The elevator entrance / exit device of the present disclosure is provided on the floor of the elevator entrance / exit and is equipped with a movable regulating member that is movable up and down relative to the floor between a regulating position and a release position in conjunction with the opening and closing action of the elevator doors that open and close the elevator entrance / exit, the movable regulating member is positioned in the regulating position when the elevator doors are positioned in the fully closed position and is positioned in the release position when the elevator doors are positioned in the fully open position, the regulating position is a position where the movable regulating member protrudes upward from the floor, and the release position is a position below the regulating position, and when positioned in the regulating position, the movable regulating member faces the outer surface of the elevator door that faces the hoistway and regulates the lower end of the elevator door from displacing toward the hoistway. [Effects of the Invention]

[0008] According to the elevator entrance / exit device of the present disclosure, the effort required for installation can be reduced. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic configuration diagram showing an elevator according to a first embodiment. [Figure 2] FIG. 2 is a front view showing a schematic configuration of the car door device and the landing door device of FIG. 1. [Figure 3] 1 is a front view showing an entrance / exit device according to a first embodiment. [Figure 4] FIG. 4 is a left side view showing the entrance / exit device of FIG. 3. [Figure 5] 4 is a front view showing a state of the entrance / exit device when the elevator entrance of FIG. 3 is open. FIG. [Figure 6] FIG. 6 is a left side view showing the entrance / exit device of FIG. 5. [Figure 7] FIG. 4 is a perspective view showing a main part of the movable restricting member of FIG. 3. [Figure 8] FIG. 10 is a front view showing an entrance / exit device according to a second embodiment. [Figure 9] FIG. 9 is a left side view showing the entrance / exit device of FIG. 8. [Figure 10]9 is a front view showing a state of the entrance / exit device when the elevator entrance of FIG. 8 is open. [Figure 11] FIG. 11 is a left side view showing the entrance / exit device of FIG. [Figure 12] FIG. 11 is a front view showing an entrance / exit device according to a third embodiment. [Figure 13] FIG. 13 is a left side view showing the entrance / exit device of FIG. [Figure 14] FIG. 13 is a plan view showing the main part of FIG. 12. [Figure 15] 13 is a front view showing the state of the entrance / exit device when the elevator entrance of FIG. 12 is open. FIG. [Figure 16] FIG. 16 is a left side view showing the entrance / exit device of FIG. [Figure 17] FIG. 10 is a front view showing an entrance / exit device according to a fourth embodiment. [Figure 18] FIG. 18 is a left side view showing the entrance / exit device of FIG. [Figure 19] FIG. 18 is a front view showing the state of the entrance / exit device when the elevator entrance of FIG. 17 is open. [Figure 20] FIG. 20 is a left side view showing the entrance / exit device of FIG. 19. [Figure 21] FIG. 10 is a front view showing an entrance / exit device according to a fifth embodiment. [Figure 22] FIG. 22 is a left side view showing the entrance / exit device of FIG. 21. [Figure 23] 22 is a front view showing the state of the entrance / exit device when the elevator entrance of FIG. 21 is open. FIG. [Figure 24] FIG. 24 is a left side view showing the entrance / exit device of FIG. 23. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments will be described with reference to the drawings. Embodiment 1 Fig. 1 is a schematic diagram showing an elevator according to embodiment 1. In the figure, a machine room 2 is provided above a hoistway 1. In the machine room 2, a hoisting machine 3, a deflector sheave 4, and an elevator control device 5 are installed.

[0011] The hoist 3 has a drive sheave 6, a hoist motor (not shown), and a hoist brake (not shown). The hoist motor rotates the drive sheave 6. The hoist brake keeps the drive sheave 6 stationary. The hoist brake also brakes the rotation of the drive sheave 6.

[0012] A suspension body 7 is wound around the drive sheave 6 and the deflector sheave 4. A plurality of ropes or belts is used as the suspension body 7. A car 8 is connected to a first end of the suspension body 7. A counterweight 9 is connected to a second end of the suspension body 7.

[0013] The car 8 and counterweight 9 are suspended by a suspension body 7, and move up and down in the elevator shaft 1 by rotating the drive sheave 6. The elevator control device 5 controls the operation of the car 8 by controlling the hoisting machine 3.

[0014] A pair of car guide rails (not shown) and a pair of counterweight guide rails (not shown) are installed in the hoistway 1. The pair of car guide rails guide the rising and falling of the car 8. The pair of counterweight guide rails guide the rising and falling of the counterweight 9.

[0015] The car 8 has a car frame 10, a car chamber 11, and a car door device 12. The suspension body 7 is connected to the car frame 10. The car chamber 11 is supported by the car frame 10. The car door device 12 is provided on the front side of the car chamber 11.

[0016] A door controller 13 is provided on the car 8. The door controller 13 controls the operation of the car door device 12.

[0017] Each of the landings on the multiple floors is provided with a landing door device 14. At each landing, the landing door device 14 operates in conjunction with the car door device 12 when the car 8 lands on the floor.

[0018] FIG. 2 is a front view showing a schematic configuration of the car door device 12 and the landing door device 14 of FIG. 1, and shows a configuration common to the car door device 12 and the landing door device 14.

[0019] Each of the car door device 12 and the landing door device 14 has a door frame 21 and a pair of elevator doors 22.

[0020] The door frame 21 is provided above the elevator entrance 20. The elevator entrance 20 in which the car door device 12 is provided is a car entrance and is provided in front of the car room 11. The elevator entrance 20 in which the landing door device 14 is provided is a landing entrance and is provided between the landing and the hoistway 1.

[0021] The elevator entrance 20 is opened and closed by a pair of elevator doors 22. Door rails 21a are provided on the door frame 21. The pair of elevator doors 22 are suspended from the door rails 21a and are guided by the door rails 21a to open and close.

[0022] Each elevator door 22 has a door panel 23 and a door hanger 24. The door hanger 24 is fixed to the upper part of the door panel 23. The door hanger 24 is provided with a plurality of hanger rollers (not shown). Each hanger roller moves while rolling on the door rail 21a when the elevator door 22 opens or closes.

[0023] An entrance / exit device 30 is provided on a floor portion 25 of the elevator entrance / exit 20. The floor portion 25 of the car entrance / exit is a car floor. The floor portion 25 of the hall entrance / exit is a hall floor.

[0024] Fig. 3 is a front view showing the entrance / exit device 30 according to embodiment 1. Fig. 4 is a left side view showing the entrance / exit device 30 of Fig. 3. Fig. 5 is a front view showing the state of the entrance / exit device 30 when the elevator entrance 20 of Fig. 3 is open. Fig. 6 is a left side view showing the entrance / exit device 30 of Fig. 5.

[0025] The entrance / exit device 30 has a movable restricting member 31, a detector 32, a pair of return springs 33, a pair of door-side cams 34, and a pair of rollers 35. One of the pair of return springs 33, one of the pair of door-side cams 34, and one of the pair of rollers 35 are shown in Figures 3 to 6.

[0026] The movable restricting member 31 is movable up and down relative to the floor 25 between a restricting position shown in FIGS. 3 and 4 and a release position shown in FIGS.

[0027] The restricting position is a position where the movable restricting member 31 protrudes upward from the floor 25. The released position is a position below the restricting position. In the first embodiment, the released position is a position where the amount of upward protrusion of the movable restricting member 31 from the top surface of the floor 25 is zero.

[0028] 3, the movable restricting member 31 is in the restricting position when the pair of elevator doors 22 is in the fully closed position, and as shown in FIG. 5, the movable restricting member 31 is in the releasing position when the pair of elevator doors 22 is in the fully open position.

[0029] The length of the movable restricting member 31 in the width direction of the elevator doorway 20 is greater than the width dimension of the elevator doorway 20. The width direction of the elevator doorway 20 is a direction parallel to the opening and closing direction of the pair of elevator doors 22, and is the left-right direction in Figures 3 and 5.

[0030] When the movable restricting member 31 is located at the restricting position, it faces the outer surface 22a of each elevator door 22 and restricts the lower end of each elevator door 22 from being displaced toward the elevator shaft 1 side.

[0031] The outer surface 22a of each elevator door 22 is the surface of each elevator door 22 facing the hoistway 1. The outer surface 22a of the car door device 12 is the surface of each elevator door 22 facing the landing. The outer surface 22a of the landing door device 14 is the surface of each elevator door 22 facing the hoistway 1.

[0032] The elevator shaft 1 side of the car door device 12 is the opposite side to the car room 11 side, that is, the landing side. The elevator shaft 1 side of the landing door device 14 is the opposite side to the landing.

[0033] The detector 32 is attached to the floor 25. As the detector 32, for example, a detection switch is used.

[0034] When the movable restricting member 31 is located at the restricting position, the movable restricting member 31 is in contact with the detector 32. As a result, the detector 32 detects that the movable restricting member 31 is located at the restricting position.

[0035] When the movable restricting member 31 is displaced downward from the restricting position, the movable restricting member 31 moves away from the detector 32. As a result, the detector 32 detects that the movable restricting member 31 is not positioned at the restricting position.

[0036] The pair of return springs 33 are arranged symmetrically with respect to the center of the width direction of the elevator doorway 20. Each return spring 33 is provided between the movable restricting member 31 and the floor portion 25. Each return spring 33 applies a force to the movable restricting member 31 to return the movable restricting member 31 to the restricting position. Each return spring 33 is a tension spring.

[0037] The movable restricting member 31 is supported by the floor portion 25 via a pair of return springs 33. That is, the movable restricting member 31 is suspended from the floor portion 25 via the pair of return springs 33.

[0038] The pair of door-side cams 34 are disposed symmetrically with respect to the center in the width direction of the elevator doorway 20. Each door-side cam 34 is provided at the door pocket side end of the corresponding elevator door 22. When the pair of elevator doors 22 start to open, each door-side cam 34 moves in the opening direction together with the pair of elevator doors 22, and presses down the movable restricting member 31 to the release position.

[0039] Furthermore, the lower surface 34 a of each door-side cam 34 is inclined in a direction approaching the floor portion 25 as it approaches the corresponding elevator door 22 .

[0040] The pair of rollers 35 are disposed symmetrically with respect to the center of the width direction of the elevator doorway 20. Each roller 35 is provided at the upper end of the movable restricting member 31. The upper end of each roller 35 is located higher than the upper end of the movable restricting member 31. Each roller 35 is rotatable relative to the movable restricting member 31. The center of rotation of the movable restricting member 31 is horizontal and perpendicular to the opening and closing direction of the pair of elevator doors 22.

[0041] The lower surface 34a of the corresponding door-side cam 34 comes into contact with each roller 35 when the pair of elevator doors 22 starts to open. When the pair of elevator doors 22 starts to open, the corresponding roller 35 is pushed by each door-side cam 34, displacing the movable restricting member 31 to the release position. At this time, each roller 35 rotates while contacting the lower surface 34a of the corresponding door-side cam 34.

[0042] The pair of return springs 33, the pair of door-side cams 34, and the pair of rollers 35 are arranged symmetrically with respect to the center of the elevator doorway 20 in the width direction.

[0043] Fig. 7 is a perspective view showing a main part of the movable restricting member 31 of Fig. 3. The movable restricting member 31 has a flat plate-shaped main portion 31a, a pair of flat plate-shaped interlocking portions 31b, a pair of connecting portions 31c, and an operating portion 31d.

[0044] The movable restricting member 31 is configured to be symmetrical with respect to the center in the width direction of the elevator doorway 20. Figure 7 shows one of the pair of interlocking portions 31b and one of the pair of connecting portions 31c.

[0045] When the movable restricting member 31 is positioned at the restricting position, the main portion 31a faces the outer surface 22a and restricts the lower end of each elevator door 22 from being displaced toward the elevator shaft 1 side.

[0046] Each interlocking portion 31b is parallel to and faces the main portion 31a. Each interlocking portion 31b is pushed down by the opening operation of the corresponding elevator door 22, and is positioned directly below the corresponding elevator door 22 when the pair of elevator doors 22 is in the fully open position.

[0047] Each interlocking portion 31b intersects with the floor portion 25. As shown in FIG. 4, a pair of holes 25a is provided in the floor portion 25. One of the pair of holes 25a is shown in FIG. 4. A corresponding interlocking portion 31b passes through each hole 25a. Each roller 35 is provided at the upper end of the corresponding interlocking portion 31b.

[0048] Each of the connecting portions 31c connects the lower end of the main portion 31a to the lower end of the corresponding interlocking portion 31b. Each of the return springs 33 is provided between the corresponding connecting portion 31c and the floor portion 25.

[0049] The operating portion 31d protrudes from one of the pair of connecting portions 31c in a direction parallel to the opening and closing direction of the pair of elevator doors 22. The operating portion 31d comes into contact with the detector 32 when the movable restricting member 31 is positioned at the restricting position.

[0050] The shape of the movable restricting member 31 when viewed along the opening and closing direction of the pair of elevator doors 22 is U-shaped.

[0051] In this elevator entrance / exit device 30, when the pair of elevator doors 22 are in the fully closed position, the movable restricting member 31 is in the restricting position. When the pair of elevator doors 22 are in the fully open position, the movable restricting member 31 is in the released position. When in the restricting position, the movable restricting member 31 faces the outer surface 22a and restricts the lower end of each elevator door 22 from displacing toward the hoistway 1.

[0052] Therefore, the work of setting the door rail 21a and the threshold groove exactly parallel to each other can be omitted, and the labor required for the installation work can be reduced.

[0053] Furthermore, it is possible to prevent each elevator door 22 from coming off when a force is applied to each elevator door 22 from inside the car room 11 or from the landing.

[0054] Furthermore, when the pair of elevator doors 22 are in the fully open position, the movable restricting member 31 can be prevented from interfering with the passage of users.

[0055] Furthermore, when the car 8 lands on the floor, the gap between the car 8 and the landing can be reduced by the movable restricting member 31.

[0056] Furthermore, the detector 32 detects that the movable restricting member 31 is in the restricted position. Therefore, it is possible to detect early anomalies, such as the door-side cam 34, roller 35, or other parts coming off or being damaged, that cause the movable restricting member 31 to remain in the restricted position when the elevator entrance 20 is open. This makes it possible to prevent the car 8 from continuing normal operation while an abnormality remains in the entrance device 30.

[0057] In addition, the return spring 33 applies a force to the movable restricting member 31 to return it to the restricted position. Therefore, when the elevator doorway 20 is closed, the movable restricting member 31 can be more reliably held in the restricted position.

[0058] In addition, a door-side cam 34 is provided at the door pocket side end of each elevator door 22. Therefore, when each elevator door 22 starts to open, the movable restricting member 31 can be smoothly pushed down to the release position.

[0059] In addition, the movable restricting member 31 is provided with a roller 35. Therefore, the movable restricting member 31 can be smoothly displaced downward when the opening operation of each elevator door 22 starts. Furthermore, when the movable restricting member 31 is in the release position, each elevator door 22 can be smoothly opened and closed.

[0060] Furthermore, the movement restricting member 31 has a main portion 31a, an interlocking portion 31b, and a connecting portion 31c. Therefore, the movement restricting member 31 can be made of a sheet metal structure, and can be easily manufactured by bending a flat plate. Furthermore, a threshold that is manufactured by extrusion, machining, or the like can be omitted.

[0061] Embodiment 2 Next, Fig. 8 is a front view showing an entrance / exit device 30 according to embodiment 2. Fig. 9 is a left side view showing the entrance / exit device 30 of Fig. 8. Fig. 10 is a front view showing a state of the entrance / exit device 30 when the elevator entrance 20 of Fig. 8 is open. Fig. 11 is a left side view showing the entrance / exit device 30 of Fig. 10.

[0062] The entrance / exit device 30 of the second embodiment has a pair of restricting member side cams 36 instead of the pair of rollers 35 of the first embodiment. Each restricting member side cam 36 may be formed on the movable restricting member 31 as a part of the movable restricting member 31, or may be fixed to the movable restricting member 31 as a separate member from the movable restricting member 31.

[0063] The lower surface 34a of the corresponding door-side cam 34 abuts against each regulating member-side cam 36 when the opening operation of the pair of elevator doors 22 begins. The contact surface of each regulating member-side cam 36 with the door-side cam 34 is curved in a semicircular shape.

[0064] When the pair of elevator doors 22 starts to open, each door-side cam 34 pushes the corresponding restriction member-side cam 36, displacing the movable restriction member 31 to the release position. At this time, each restriction member-side cam 36 slides relative to the lower surface 34a of the corresponding door-side cam 34 while contacting the lower surface 34a.

[0065] Other configurations in the second embodiment are the same as those in the first embodiment.

[0066] Even with this configuration, it is possible to obtain the same effects as in embodiment 1. Furthermore, since a pair of regulating member side cams 36 are used instead of a pair of rollers 35, the configuration can be simplified.

[0067] Furthermore, when each of the restricting member side cams 36 is formed on the movable restricting member 31 as a part of the movable restricting member 31, the number of parts can be reduced.

[0068] Embodiment 3 Next, Fig. 12 is a front view showing an entrance / exit device 30 according to embodiment 3. Fig. 13 is a left side view showing the entrance / exit device 30 of Fig. 12. Fig. 14 is a plan view showing the main parts of Fig. 12. Fig. 15 is a front view showing the state of the entrance / exit device 30 when the elevator entrance 20 of Fig. 12 is open. Fig. 16 is a left side view showing the entrance / exit device 30 of Fig. 15.

[0069] The entrance / exit device 30 of the first embodiment has a structure similar to that of the first embodiment, and further has a holder 37 and a pair of fasteners 38. The holder 37 is attached to the floor 25 by the pair of fasteners 38. A bolt is used as each fastener 38. Each fastener 38 is threaded into the holder 37, passing through the floor 25.

[0070] The holder 37 is attached to the floor 25 so as to sandwich the main part 31a of the movable restricting member 31 between the holder 37 and the floor 25. The holder 37 also allows the movable restricting member 31 to move up and down, while restricting the movable restricting member 31 from displacing toward the elevator shaft 1. In other words, the holder 37 restricts the displacement of the movable restricting member 31 in a direction away from the floor 25.

[0071] Other configurations in the third embodiment are the same as those in the first embodiment.

[0072] Even with this configuration, it is possible to obtain the same effects as in embodiment 1. Furthermore, since retainers 37 are attached to floor 25, it is possible to more reliably prevent each elevator door 22 from coming off when a force is applied to each elevator door 22 from inside car chamber 11 or from the landing.

[0073] The holder 37 of the third embodiment may be added to the entrance / exit device 30 of the second embodiment.

[0074] Embodiment 4 Next, Fig. 17 is a front view showing an entrance / exit device 30 according to embodiment 4. Fig. 18 is a left side view showing the entrance / exit device 30 of Fig. 17. Fig. 19 is a front view showing the state of the entrance / exit device 30 when the elevator entrance 20 of Fig. 17 is open. Fig. 20 is a left side view showing the entrance / exit device 30 of Fig. 19.

[0075] The entrance / exit device 30 of the fourth embodiment has a pair of regulating units 40. Each regulating unit 40 is disposed below the corresponding elevator door 22.

[0076] The pair of regulating units 40 have the same configuration. Therefore, the following description will focus on only one of the regulating units 40. However, the pair of regulating units 40 are arranged symmetrically with respect to the center of the elevator entrance 20 in the width direction.

[0077] The restriction unit 40 includes a movable restriction member 41, a first link member 42, a second link member 43, a detector 32, a return spring 44, a door-side cam 34, and a roller 35.

[0078] The movable restricting member 41 of the fourth embodiment is a rectangular flat plate. The movable restricting member 41 is attached to the floor portion 25 via a first link member 42 and a second link member 43.

[0079] The front shape of the first link member 42 is L-shaped. A first end of the first link member 42 is rotatably connected to the floor portion 25. A second end of the first link member 42 is rotatably connected to the movable restricting member 41.

[0080] The front shape of the second link member 43 is Z-shaped. An intermediate portion of the second link member 43 is rotatably connected to the floor portion 25. A roller 35 is rotatably attached to a first end portion of the second link member 43. A second end portion of the second link member 43 is rotatably connected to the movable restricting member 41.

[0081] The movable restricting member 41 of the fourth embodiment moves up and down as the first link member 42 and the second link member 43 rotate relative to the floor 25 in response to the opening and closing operations of the pair of elevator doors 22. As a result, the movable restricting member 41 moves up and down relative to the floor 25 between the restricting position shown in Figures 17 and 18 and the released position shown in Figures 19 and 20 in conjunction with the opening and closing operations of the pair of elevator doors 22.

[0082] The restricting position is a position where the movable restricting member 41 protrudes upward from the floor 25. The released position is a position below the restricting position. The released position in the fourth embodiment is a position where the amount of protrusion of the movable restricting member 41 from the upper surface of the floor 25 is zero.

[0083] 17, the movable restricting member 41 is located in the restricting position when the pair of elevator doors 22 is located in the fully closed position. Also, as shown in FIG. 19, the movable restricting member 41 is located in the released position when the pair of elevator doors 22 is located in the fully open position.

[0084] When the movable restricting member 41 is located at the restricting position, it faces the outer surface 22a of the corresponding elevator door 22 and restricts the lower end of the corresponding elevator door 22 from being displaced toward the elevator shaft 1 side.

[0085] The detector 32 is attached to the movable restricting member 41. When the movable restricting member 41 is located at the restricting position, the detector 32 is in contact with the floor portion 25. This allows the detector 32 to detect that the movable restricting member 41 is located at the restricting position.

[0086] When the movable restricting member 41 is displaced downward from the restricting position, the detector 32 moves away from the floor portion 25. As a result, the detector 32 detects that the movable restricting member 41 is not positioned at the restricting position.

[0087] The return spring 44 is provided between the bed 25 and the rotation axis of the second link member 43 relative to the bed 25. The return spring 44 applies a force to the movable restricting member 41 via the second link member 43 to return the movable restricting member 41 to the restricting position. Each return spring 44 is a torsion spring.

[0088] The roller 35 comes into contact with the lower surface 34a of the door-side cam 34 when the pair of elevator doors 22 start to open. When the pair of elevator doors 22 start to open, the roller 35 is pushed by the door-side cam 34, causing the first link member 42 and the second link member 43 to rotate and displacing the movable restricting member 41 to the release position. At this time, the roller 35 rotates while contacting the lower surface 34a of the corresponding door-side cam 34.

[0089] Other configurations in the fourth embodiment are the same as those in the first embodiment.

[0090] Even with this configuration, it is possible to obtain the same effect as in embodiment 1. Furthermore, in embodiment 1, a pair of holes 25a is provided in floor portion 25, but in embodiment 4, the pair of holes 25a can be omitted.

[0091] Furthermore, by increasing the strength of the first link member 42, the second link member 43, and their respective rotation axes, it is possible to more reliably prevent each elevator door 22 from coming off due to forces applied to each elevator door 22 from within the car chamber 11 or from the landing.

[0092] Embodiment 5 Next, Fig. 21 is a front view showing an entrance / exit device 30 according to embodiment 5. Fig. 22 is a left side view showing the entrance / exit device 30 of Fig. 21. Fig. 23 is a front view showing the state of the entrance / exit device 30 when the elevator entrance / exit 20 of Fig. 21 is open. Fig. 24 is a left side view showing the entrance / exit device 30 of Fig. 23.

[0093] The regulating unit 40 of the fifth embodiment has regulating member-side cams 36 instead of the rollers 35 of the fourth embodiment. Each regulating member-side cam 36 may be formed on the second link member 43 as a part of the second link member 43, or may be fixed to the second link member 43 as a separate member from the second link member 43.

[0094] The lower surface 34a of the door-side cam 34 comes into contact with the regulating member-side cam 36 when the pair of elevator doors 22 starts to open. The contact surface of each regulating member-side cam 36 that comes into contact with the door-side cam 34 is curved in a semicircular shape.

[0095] When the pair of elevator doors 22 starts to open, the door-side cam 34 pushes the restriction member-side cam 36, displacing the movable restriction member 41 to the release position. At this time, the restriction member-side cam 36 slides relative to the lower surface 34a of the door-side cam 34 while making contact with the lower surface 34a.

[0096] Other configurations in the fifth embodiment are the same as those in the fourth embodiment.

[0097] Even with this configuration, it is possible to obtain the same effects as in embodiment 4. Furthermore, since the regulating member side cam 36 is used instead of the roller 35, the configuration can be simplified.

[0098] Furthermore, when the restriction member side cam 36 is formed on the second link member 43 as a part of the second link member 43, the number of parts can be reduced.

[0099] The holder 37 of the third embodiment may be added to the entrance / exit device 30 of the fourth and fifth embodiments.

[0100] Moreover, the entrance / exit device 30 in the first to fifth embodiments may be provided only on the car floor, only on the hall floor, or on both the car floor and the hall floor.

[0101] Furthermore, the movement restricting member 31 or 41 may protrude slightly upward from the floor portion 25 when in the release position, as long as it does not interfere with the passage of users.

[0102] Furthermore, the total number of elevator doors 22 that open and close one elevator entrance 20 may be one, or three or more.

[0103] The door device may be of a center opening type or a single opening type.

[0104] Furthermore, the overall layout of the elevator is not limited to the layout shown in Fig. 1. For example, the roping system may be a 2:1 roping system.

[0105] The elevator may also be a machine room-less elevator, a double-deck elevator, a one-shaft multi-car elevator, etc. In the one-shaft multi-car elevator, an upper car and a lower car located directly below the upper car each independently ascend and descend in a common elevator shaft.

[0106] The above describes in detail preferred embodiments, but the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims.

[0107] Various aspects of the present disclosure are summarized below as appendices.

[0108] (Appendix 1) A movable restricting member that is provided on the floor of the elevator entrance and that is movable up and down relative to the floor between a restricting position and a releasing position in conjunction with the opening and closing operation of the elevator doors that open and close the elevator entrance. Equipped with the movable restricting member is located at the restricting position when the elevator doors are located at a fully closed position, and is located at the releasing position when the elevator doors are located at a fully open position; the restricting position is a position where the movable restricting member protrudes upward from the floor portion, The release position is a position lower than the restriction position, When the movable restricting member is positioned in the restricting position, it faces the outer surface of the elevator door facing the elevator shaft, and restricts the lower end of the elevator door from displacing toward the elevator shaft. (Appendix 2) a detector for detecting that the movable restricting member is positioned at the restricting position; 2. The elevator entrance / exit device according to claim 1, further comprising: (Appendix 3) a return spring that applies a force to the movable restricting member to return the movable restricting member to the restricting position; 3. The elevator entrance / exit device according to claim 1 or 2, further comprising: (Appendix 4) a holder attached to the floor portion so as to sandwich the movable restricting member between the floor portion and the holder, which restricts the movable restricting member from being displaced toward the elevator shaft while allowing the movable restricting member to move up and down; An elevator entrance / exit device according to any one of Supplementary Note 1 to Supplementary Note 3, further comprising: (Appendix 5) a door-side cam provided at the door pocket side end of the elevator door, which pushes the movable restricting member down to the release position when the elevator door starts to open; An elevator entrance / exit device according to any one of appendices 1 to 4, further comprising: (Appendix 6) A roller that the door-side cam hits when the elevator door starts to open. Furthermore, 6. An elevator entrance / exit device according to claim 5, wherein the roller is pushed by the door-side cam, thereby displacing the movable restricting member to the release position. (Appendix 7) When the elevator door starts to open, the door-side cam comes into contact with the regulating member-side cam. Furthermore, 6. An elevator entrance / exit device as described in Appendix 5, wherein the movable regulating member is displaced to the release position when the regulating member cam is pushed by the door cam. (Appendix 8) The movable restricting member is a flat plate-shaped main portion that faces the outer surface when the cap is positioned at the restricting position; a linkage portion facing the main portion, being pushed down by the opening operation of the elevator door, and being located directly below the elevator door when the elevator door is located at a fully open position; a connecting portion connecting the lower end of the main portion and the lower end of the interlocking portion; An elevator entrance / exit device according to any one of appendices 1 to 7, comprising: (Appendix 9) a link member rotatably connected to the floor portion and to the movable restricting member; Furthermore, An elevator entrance / exit device as described in any one of appendix 1 to appendix 8, wherein the link member rotates relative to the floor portion due to the opening and closing operation of the elevator door, thereby causing the movable restricting member to move up and down. [Explanation of symbols]

[0109] 1 elevator shaft, 20 elevator entrance, 22 elevator door, 22a outer surface, 25 floor portion, 30 entrance / exit device, 31, 41 movable restricting member, 31a main portion, 31b interlocking portion, 31c connecting portion, 32 detector, 33, 44 return spring, 34 door side cam, 35 roller, 36 restricting member side cam, 37 retainer, 42 first link member, 43 second link member.

Claims

1. A movable restricting member that is provided on the floor of the elevator entrance and that is movable up and down relative to the floor between a restricting position and a releasing position in conjunction with the opening and closing operation of the elevator doors that open and close the elevator entrance. Equipped with the movable restricting member is located at the restricting position when the elevator doors are located at a fully closed position, and is located at the releasing position when the elevator doors are located at a fully open position; the restricting position is a position where the movable restricting member protrudes upward from the floor portion, The release position is a position lower than the restriction position, the movable restricting member has a flat plate-shaped main portion, and when positioned at the restricting position, the main portion faces an outer surface of the elevator door that faces the hoistway, restricting the lower end of the elevator door from displacing toward the hoistway; An elevator entrance / exit device, wherein when the movable restricting member is in the release position, the main part is located in a gap between a car and a landing.

2. A movable restricting member that is provided on the floor of the elevator entrance and that is movable up and down relative to the floor between a restricting position and a releasing position in conjunction with the opening and closing operation of the elevator doors that open and close the elevator entrance. Equipped with the movable restricting member is located at the restricting position when the elevator doors are located at a fully closed position, and is located at the releasing position when the elevator doors are located at a fully open position; the restricting position is a position where the movable restricting member protrudes upward from the floor portion, The release position is a position lower than the restriction position, When the movable restricting member is positioned at the restricting position, the movable restricting member faces an outer surface of the elevator door that faces the hoistway, and restricts the lower end of the elevator door from displacing toward the hoistway, a holder attached to the floor portion so as to sandwich the movable restricting member between the floor portion and the holder, which restricts the movable restricting member from being displaced toward the elevator shaft while allowing the movable restricting member to move up and down; The elevator entrance / exit device further comprises:

3. A movable restricting member that is provided on the floor of the elevator entrance and that is movable up and down relative to the floor between a restricting position and a releasing position in conjunction with the opening and closing operation of the elevator doors that open and close the elevator entrance. Equipped with the movable restricting member is located at the restricting position when the elevator doors are located at a fully closed position, and is located at the releasing position when the elevator doors are located at a fully open position; the restricting position is a position where the movable restricting member protrudes upward from the floor portion, The release position is a position lower than the restriction position, When the movable restricting member is positioned at the restricting position, the movable restricting member faces an outer surface of the elevator door that faces the hoistway, and restricts the lower end of the elevator door from displacing toward the hoistway, The movable restricting member is a flat plate-shaped main portion that faces the outer surface when the cap is positioned at the restricting position; a linkage portion facing the main portion, being pushed down by the opening operation of the elevator door, and being located directly below the elevator door when the elevator door is located at a fully open position; a connecting portion connecting the lower end of the main portion and the lower end of the interlocking portion; An elevator entrance / exit device having:

4. a detector for detecting that the movable restricting member is positioned at the restricting position; The elevator entrance / exit device according to any one of claims 1 to 3, further comprising:

5. a return spring that applies a force to the movable restricting member to return the movable restricting member to the restricting position; The elevator entrance / exit device according to any one of claims 1 to 3, further comprising:

6. a door-side cam provided at the door pocket side end of the elevator door, which pushes the movable restricting member down to the release position when the elevator door starts to open; The elevator entrance / exit device according to any one of claims 1 to 3, further comprising:

7. A roller that the door-side cam hits when the elevator door starts to open. Furthermore, 7. The elevator entrance / exit device according to claim 6, wherein the roller is pushed by the door-side cam, thereby displacing the movable restricting member to the release position.

8. When the elevator door starts to open, the door-side cam comes into contact with the regulating member-side cam. Furthermore, 7. The elevator entrance / exit device according to claim 6, wherein the movable restricting member is displaced to the release position by the door-side cam pushing the restricting member-side cam.

9. a link member rotatably connected to the floor portion and to the movable restricting member; Furthermore, 4. The elevator entrance / exit device according to claim 1, wherein the link member rotates relative to the floor portion when the elevator door is opened or closed, thereby moving the movable restricting member up and down.

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