Cars, elevators and door opening and closing devices

Abstract

To provide a car, an elevator, and a door opening / closing device capable of easily performing a maintenance inspection operation.SOLUTION: This car comprises: a hollow car room 121; and a door opening / closing device 125. The door opening / closing device 125 is provided with a rail frame 130, a fixed bracket 20, and a door motor 21. The rail frame 130 includes a front 131 to which a door rail 10 is fixed, and a roof 132. The fixed bracket 20 includes a first surface 24 to which the door motor 21 is fixed and which faces the front of the rail frame 131, and a second surface 25 that projects from the vertical upper end of the first surface 24 toward the car room and that is fastened and fixed to the roof 132 of the rail frame 130.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a car, an elevator, and a door opening and closing device. [Background technology]

[0002] Conventionally, elevators have been provided with entrances and exits on each floor of a building structure so that people and objects can get on and off. Similarly, the car in which people and objects are placed also has an opening for people and objects to enter and exit. These entrances and the opening of the car are each provided with an openable / closable car door. The car is also provided with a door opening / closing device that supports the openable / closable car door.

[0003] A conventional door opening and closing device will now be described with reference to FIGS. 11A and 11B. FIG. 11A is a front view showing a conventional door opening and closing device, and FIG. 11B is a side view showing the conventional door opening and closing device.

[0004] 11A and 11B, a door opening and closing device 225 includes a rail frame 130, a door rail 10, a door motor 21, a driven pulley 11, a transmission belt 12, devices 14 such as a switch and a door open holding device, and a fixed bracket 220. The door rail 10 and the devices 14 are fixed to the rail frame 130. The door motor 21 is fixed to the fixed bracket 220. The fixed bracket 220 is placed on a roof portion 132, which is the upper surface of the rail frame 130. Therefore, the fixed bracket 220 and the door motor 21 protrude vertically upward from the rail frame 130. As a result, the conventional door opening and closing device 225 has a problem in that the fixed bracket 220 and the door motor 21 increase the maximum height of the device.

[0005] In order to prevent the height of such a door opening and closing device from increasing, for example, there is a technique described in Patent Document 1. Patent Document 1 describes a technique in which a drive motor is attached via a bracket to the front of an upper frame provided above the entrance and exit of the car. It also describes that the bracket abuts on a position determining part provided on the drive motor, thereby determining the position of the drive motor in the axial direction perpendicular to the front of the upper frame.

[0006] Next, with reference to FIGS. 12A and 12B, a description will be given of a door opening and closing device disclosed in Patent Document 1, which is another example of a conventional door opening and closing device. FIG. 12A is a front view showing another example of a conventional door opening and closing device, and FIG. 12B is a side view showing another example of a conventional door opening and closing device.

[0007] 12A and 12B, the door opening and closing device 325 has a rail frame 130, a door rail 10, a door motor 21, a driven pulley 11, a transmission belt 12, devices 14 such as a switch and a door open holding device, and a fixed bracket 320. The door rail 10 and the devices 14 are fixed to the rail frame 130. The door motor 21 is fixed to the fixed bracket 320. The fixed bracket 320 is fixed to a front portion 131 that bends from a roof portion 132, which is the upper surface of the rail frame 130. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] International Publication No. 2012 / 153410 Summary of the Invention [Problem to be solved by the invention]

[0009] However, with the technology described in Patent Document 1, when the door opening and closing device is viewed from above in the vertical direction, the fixing point between the fixing bracket supporting the door motor and the rail frame is hidden by the fixing bracket and the rail frame. Therefore, when a worker stands on top of the car compartment to perform maintenance and inspection work on the door motor, it is difficult to access the fixing point between the fixing bracket and the rail frame. As a result, the technology described in Patent Document 1 makes maintenance and inspection work very complicated.

[0010] In consideration of the above problems, the present invention aims to provide a car, an elevator, and a door opening and closing device that allow maintenance and inspection work to be easily performed. [Means for solving the problem]

[0011] To solve the above problems and achieve the object, a passenger car includes a hollow car chamber and a door opening and closing device provided in the car chamber and supporting a car door so that it can be opened and closed. The door opening and closing device includes a rail frame fixed to the car chamber, a fixing bracket fixed to the rail frame, and a door motor fixed to the fixing bracket. The rail frame has a front portion to which the door rail is fixed and a roof portion protruding from a vertical upper end of the front portion in a direction away from the car chamber. The fixing bracket has a first surface portion to which the door motor is fixed and facing the front portion of the rail frame, and a second surface portion protruding from the vertical upper end of the first surface portion toward the car chamber and fastened to the roof portion of the rail frame.

[0012] The elevator also includes a car that moves up and down the elevator shaft. The car may have the above-described configuration.

[0013] The door opening and closing device is a door opening and closing device having the above-described configuration. [Effects of the Invention]

[0014] According to the car, elevator, and door opening and closing device having the above configuration, maintenance and inspection work can be easily performed. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic configuration diagram showing an elevator according to a first embodiment. [Figure 2] 1 is a front view showing a door opening and closing device according to a first embodiment. [Figure 3] 1 is a side view showing a door opening and closing device according to a first embodiment. [Figure 4] FIG. 10 is a side view showing a door opening and closing device according to a second embodiment. [Figure 5] FIG. 10 is a plan view of a door opening and closing device according to a second embodiment, as viewed from above. [Figure 6] FIG. 10 is a front view showing a door opening and closing device according to a third embodiment. [Figure 7] FIG. 10 is a side view showing a door opening and closing device according to a third embodiment. [Figure 8] FIG. 10 is a front view showing a door opening and closing device according to a fourth embodiment. [Figure 9] FIG. 10 is a plan view of a door opening and closing device according to a fourth embodiment, as viewed from above. [Figure 10] FIG. 10 is a side view showing a door opening and closing device according to a fourth embodiment. [Figure 11] 11A and 11B show a conventional door opening and closing device, with FIG. 11A being a front view and FIG. 11B being a side view. [Figure 12] 11A and 11B show a door opening and closing device according to another example of the related art, with FIG. 11A being a front view and FIG. 11B being a side view. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of a car, an elevator, and a door opening and closing device will be described with reference to Figures 1 to 10. Note that common members in the figures are given the same reference numerals.

[0017] 1. First embodiment 1-1. Elevator configuration example First, the configuration of an elevator according to a first embodiment (hereinafter referred to as "this example") will be described with reference to FIG. FIG. 1 is a schematic diagram showing an elevator.

[0018] The elevator 1 in this example is installed in a hoistway formed within a building structure. The elevator 1 moves up and down within the hoistway and is equipped with a car 120 for carrying passengers and cargo, a rope 170, a counterweight 140, and a hoist 100. A machine room 160 is provided at the top of the hoistway.

[0019] The hoist 100 is disposed in a machine room 160, and raises and lowers the car 120 by winding a rope 170 around it. In addition, near the hoist 100, a deflector wheel 150 on which the rope 170 is mounted is provided.

[0020] The car 120 is attached to one axial end of the rope 170, and the counterweight 140 is attached to the other axial end of the rope 170. Therefore, the car 120 is connected to the counterweight 140 via the rope 170. When the hoisting machine 100 is driven, the car 120 and the counterweight 140 move up and down.

[0021] In addition, a landing where the elevator car 120 in the building structure stops is provided with an entrance / exit through which people and luggage enter and exit. A building-side door 205 is arranged at the entrance / exit so that it can be opened and closed. The building-side door is supported so that it can be opened and closed by a building-side door unit installed at the upper end of the entrance / exit in the vertical direction.

[0022] 1-2. Car configuration Next, the configuration of the car 120 will be described. The car 120 has a car chamber 121, a door opening / closing device 125, and a car side door 135. The car chamber 121 is formed in a hollow, approximately rectangular parallelepiped shape. An opening is provided on one side of the car chamber 121 facing the landing. The car side door 135 is provided so as to be openable and closable so as to close the opening of the car chamber 121. The car side door 135 is supported so as to be openable and closable by the door opening / closing device 125. The door opening / closing device 125 is fixed to the upper part of the car chamber 121 in the vertical direction.

[0023] 1-3. Door opening and closing device configuration Next, the configuration of the door opening and closing device 125 will be described with reference to FIGS. FIG. 2 is a front view showing the door opening and closing device 125, and FIG. 3 is a side view showing the door opening and closing device 125. As shown in FIG.

[0024] As shown in Figures 2 and 3, the door opening and closing device 125 has a rail frame 130, a door rail 10, a door motor 21, a driven pulley 11, a transmission belt 12, equipment 14 such as a switch and a door open holding device, and a fixed bracket 20.

[0025] The rail frame 130 is fastened to the top of the car frame that constitutes the cab 121. The method for fastening the rail frame 130 is not limited to fastening, and various other fastening methods such as welding can be applied. Furthermore, the fixing location of the rail frame 130 is not limited to the car frame of the cab 121, and the rail frame 130 may be fixed to a crosshead that connects two car frames of the cab 121, or to the front panel or side panel of the cab 121, or various other fixing locations can be applied.

[0026] The rail frame 130 has a front portion 131 and a roof portion 132. The roof portion 132 is bent substantially perpendicularly from the upper vertical end of the front portion 131. That is, the rail frame 130 has an inverted L-shape when viewed from the side. The roof portion 132 protrudes from the upper end of the front portion 131 in a direction away from the car chamber 121. Although an example in which the roof portion 132 is bent from the front portion 131 has been described, the present invention is not limited to this. The front portion 131 and the roof portion 132 may be formed from separate members, and their ends may be connected by welding or fastening.

[0027] The front surface 131 is formed with a fixing hole 131c for fastening to the car chamber 121. The roof 132 is formed with a fixing hole 132c for fastening to a fixing bracket 20 (described later). The fixing hole 132c penetrates the roof 132 from an upper surface 132a to a lower surface 132b.

[0028] The door rail 10, the device 14, the driven pulley 11, and the fixing bracket 20 are fixed to the rail frame 130. The door rail 10, the device 14, and the driven pulley 11 are fixed to a front portion 131 of the rail frame 130.

[0029] The door rail 10 extends along the width direction of the front part 131, which is the opening and closing direction of the car side door 135. A moving roller of the car side door 135 is slidably engaged with the door rail 10.

[0030] A fixed bracket 20 is disposed at one end in the width direction of the rail frame 130, and a driven pulley 11 is rotatably attached to the other end in the width direction of the rail frame 130. A transmission belt 12 is wound around the driven pulley 11.

[0031] The transmission belt 12 is formed endless with both longitudinal ends connected. The transmission belt 12 is wound around a drive pulley 22 and a driven pulley 11 of a door motor 21. When the door motor 21 is driven, the transmission belt 12 moves in a circulating manner between the driven pulley 11 and the drive pulley 22. A connecting member provided on the car-side door 135 is connected to the transmission belt 12. When the transmission belt 12 moves, the car-side door 135 opens and closes.

[0032] Fixed bracket Next, the configuration of the fixed bracket 20 will be described. The fixed bracket 20 has a first surface 24 and a second surface 25. The second surface 25 is bent substantially perpendicularly from the upper end of the first surface 24 in the vertical direction. That is, the fixed bracket 20 has an inverted L-shape when viewed from the side. Therefore, the second surface 25 protrudes from the upper end of the first surface 24 toward the car chamber 121. Note that, although an example in which the second surface 25 is bent from the first surface 24 has been described, the present invention is not limited to this. The first surface 24 and the second surface 25 may be formed from separate members, and their ends may be connected to each other by welding or fastening.

[0033] The first surface portion 24 is disposed opposite the front surface portion 131 of the rail frame 130. The first surface portion 24 is provided with a fixing hole 24c for fixing the door motor 21. The first surface portion 24 has an opposing surface 24b that faces the front surface portion 131 and a front surface 24a opposite the opposing surface 24b. The door motor 21 is fastened and fixed to the front surface 24a of the first surface portion 24. At this time, the drive pulley 22 of the door motor 21 protrudes in the direction away from the rail frame 130.

[0034] The second surface portion 25 protrudes from the upper end of the first surface portion 24 toward the rail frame 130. The second surface portion 25 is formed with fixing holes 25c for fixing to the roof portion 132 of the rail frame 130. The second surface portion 25 is placed on an upper surface 132a of the roof portion 132 facing upward in the vertical direction. Then, by inserting bolts (not shown) into the fixing holes 25c of the second surface portion 25 and the fixing holes 132c of the roof portion 132, the fixing bracket 20 is fastened and fixed to the roof portion 132 of the rail frame 130. Therefore, the door motor 21 is suspended and fixed to the roof portion 132 of the rail frame 130 via the fixing bracket 20.

[0035] Fastening and fixing the fixing bracket 20 that supports the door motor 21 to the roof portion 132 of the rail frame 130 makes it possible to prevent wasted space from being generated vertically above the rail frame 130. As a result, the maximum height of the door opening and closing device 125 can be lowered, and an increase in the maximum height of the car 120 due to the door opening and closing device 125 can be prevented.

[0036] Furthermore, by fastening and fixing the fixing bracket 20 to the roof portion 132 of the rail frame 130, workers can stand on top of the car 121 to perform maintenance and inspection work. The workers can easily access the fastening points between the fixing bracket 20 and the rail frame 130 from above the car 121. In this way, the door opening and closing device 125 of this example makes it easy to perform maintenance and inspection work such as replacement and inspection of the door motor 21.

[0037] It is also assumed that maintenance and inspection work will be performed from the entrance side of the building structure. Here, when the door motor 21 is located outside the entrance, in a conventional door opening and closing device, the fixing point of the fixing bracket is located between the rail frame and the wall surface of the building structure. Therefore, in the conventional door opening and closing device, even when maintenance and inspection work is performed from the entrance side of the building structure, it is difficult to access the fixing point.

[0038] In contrast, with the door opening and closing device 125 of this example, the fastening points between the fixed bracket 20 and the rail frame 130 can be easily accessed even when maintenance and inspection work is performed from the entrance side of the building structure.

[0039] Although the example in which the second surface portion 25 is placed on (superimposed on) the upper surface 132a of the roof portion 132 has been described, the present invention is not limited to this. For example, the second surface portion 25 may be placed on the lower surface 132b of the roof portion 132, and the fixed bracket 20 may be fixed to the rail frame 130.

[0040] Furthermore, by placing the second surface 25 on the upper surface 132a of the roof portion 132, it is possible to prevent the fixing bracket 20 and the door motor 21 from falling off the rail frame 130 against the worker's intention when the bolts and nuts that secure the fixing bracket 20 are removed. For this reason, it is preferable to overlap the second surface 25 with the upper surface 132a of the roof portion 132 rather than with the lower surface 132b.

[0041] 2. Second embodiment Next, a door opening and closing device according to a second embodiment will be described with reference to FIGS. FIG. 4 is a side view of the door opening and closing device according to the second embodiment, and FIG. 5 is a plan view of the door opening and closing device according to the second embodiment as seen from above.

[0042] The door opening and closing device according to the second embodiment differs from the door opening and closing device 125 according to the first embodiment in the configuration of the fixed bracket and rail frame. Therefore, parts common to the door opening and closing device 125 according to the first embodiment are given the same reference numerals and redundant explanations will be omitted.

[0043] 4 and 5, the door opening and closing device 125A has a fixed bracket 40 and a rail frame 130A. The fixed bracket 40 has a first surface portion 44 and a second surface portion 45. The first surface portion 44 has a fixing hole 44c formed therein for fixing the door motor 21. Furthermore, the second surface portion 45 has a fixing hole 45c formed therein for fixing the fixed bracket 40 to the roof portion 132A of the rail frame 130A.

[0044] The rail frame 130A has a front portion 131 and a roof portion 132A. An opening 138 is formed in the roof portion 132A. The opening 138 is a notch formed in the roof portion 132A at a location where the fixed bracket 40 is fixed. The opening 138 is cut out from one side of the roof portion 132A opposite the car chamber 121 toward the front portion 131. The size of the opening 138 is set to a size that allows the door motor 21 fixed to the fixed bracket 40 to pass through. The door motor 21 and the first surface portion 44 of the fixed bracket 40 are inserted into the opening 138.

[0045] Furthermore, a fixing hole 132c for fixing the fixing bracket 40 is formed between the opening 138 in the roof portion 132A and the front portion 131. The second surface portion 45 of the fixing bracket 40 is placed between the opening 138 in the roof portion 132A and the front portion 131. This allows the door motor 21 suspended and fixed to the fixing bracket 40 to be closer to the front portion 131 of the rail frame 130A. As a result, the door opening and closing device 125A according to the second embodiment can have a smaller overall thickness than the door opening and closing device 125 according to the first embodiment.

[0046] Other configurations are the same as those of the door locking device 125 according to the first embodiment described above, and therefore description thereof will be omitted. The door locking device 125A having such a configuration can also obtain the same actions and effects as those of the door locking device 125 according to the first embodiment described above.

[0047] 3. Third embodiment Next, a door opening and closing device according to a third embodiment will be described with reference to FIGS. FIG. 6 is a front view of the door opening and closing device according to the third embodiment, and FIG. 7 is a side view of the door opening and closing device according to the third embodiment as seen from above.

[0048] The door opening and closing device according to the third embodiment differs from the door opening and closing device 125 according to the first embodiment in the direction in which the door motor is fixed to the fixing bracket. Therefore, parts common to the door opening and closing device 125 according to the first embodiment are given the same reference numerals and redundant explanations will be omitted.

[0049] 6 and 7, the door opening and closing device 125B has a fixing bracket 50 that suspends and fixes the door motor 21. The fixing bracket 50 has a first surface 54 and a second surface 55. The first surface 54 has a fixing hole 54c formed therein for fixing the door motor 21. The second surface 55 has a fixing hole 55c formed therein for fixing the fixing bracket 50 to the roof portion 132 of the rail frame 130.

[0050] The first surface 54 has an opposing surface 54b that faces the front surface 131, and a front surface 54a that is opposite the opposing surface 54b. The door motor 21 is fixed to the opposing surface 54b of the first surface 54. Therefore, the drive pulley 22 of the door motor 21 faces the rail frame 130 and the car chamber 121. As a result, the door motor 21 is disposed vertically below the second surface 55 of the fixed bracket 50 and the roof portion 132 of the rail frame 130. As a result, the door opening and closing device 125B according to the third embodiment can have a smaller overall device thickness than the door opening and closing device 125 according to the first embodiment.

[0051] Other configurations are the same as those of the door locking device 125 according to the first embodiment described above, and therefore description thereof will be omitted. The door locking device 125B having such a configuration can also obtain the same actions and effects as those of the door locking device 125 according to the first embodiment described above.

[0052] 4. Fourth embodiment Next, a door opening and closing device according to a fourth embodiment will be described with reference to FIGS. Fig. 8 is a front view of the door opening and closing device according to the fourth embodiment, Fig. 9 is a plan view of the door opening and closing device according to the fourth embodiment as seen from above, and Fig. 10 is a side view of the door opening and closing device according to the fourth embodiment.

[0053] The door opening and closing device according to the fourth embodiment differs from the door opening and closing device 125 according to the first embodiment in the configuration of the fixed bracket and rail frame. Therefore, parts common to the door opening and closing device 125 according to the first embodiment are given the same reference numerals and redundant explanations will be omitted.

[0054] 8 to 10, the door opening and closing device 125C has a fixed bracket 60 and a rail frame 130A. The configuration of the rail frame 130A is the same as that of the rail frame 130A according to the second embodiment, and therefore a description thereof will be omitted.

[0055] The fixed bracket 60 has a first surface portion 64 and a second surface portion 65. The second surface portion 65 has a fixing hole 65c formed therein for fixing the fixed bracket 60 to the roof portion 132A of the rail frame 130A.

[0056] The first surface portion 64 is formed with a fixing hole 44c for fixing the door motor 21. The first surface portion 64 also has a cutout 66. The cutout 66 is formed from one side of the first surface portion 64 on the driven pulley 11 side toward the center of the first surface portion 64. The size of the opening of the cutout 66 is set to a size that allows the drive pulley 22 of the door motor 21 to be inserted therein.

[0057] The first surface 64 has an opposing surface 64b that faces the front surface 131, and a front surface 64a that is opposite the opposing surface 64b. The door motor 21 is fixed to the front surface 64a of the first surface 64. At this time, the drive pulley 22 of the door motor 21 is inserted into the notch 66 of the first surface 64. The door motor 21 is disposed such that the pulley surface 21a on which the drive pulley 22 is provided is overlapped with the front surface 64a of the first surface 64.

[0058] Therefore, the drive pulley 22 faces the rail frame 130 and the car chamber 121. As a result, the door motor 21 is disposed vertically below the second surface portion 65 of the fixed bracket 60 and the roof portion 132A of the rail frame 130A. As a result, the door opening and closing device 125C according to the fourth embodiment can reduce the overall thickness of the device compared to the door opening and closing device 125 according to the first embodiment.

[0059] Other configurations are the same as those of the door locking device 125 according to the first embodiment described above, and therefore description thereof will be omitted. The door locking device 125C having such a configuration can also obtain the same actions and effects as those of the door locking device 125 according to the first embodiment described above.

[0060] The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications are possible within the scope of the invention as defined in the claims.

[0061] In the above-described embodiment, the fixing bracket is formed in an inverted L-shape, but the present invention is not limited to this. The fixing bracket only needs to have at least a first surface to which the door motor is fixed and a second surface to which the roof of the rail frame is fixed. For example, the fixing bracket may be formed in a T-shape or any other shape.

[0062] Furthermore, in the above-described embodiment, an example was described in which a worker works by climbing onto the top of the car compartment during maintenance and inspection, but this is not limited to this, and a worker may also perform maintenance and inspection work from the landing side where the car stops.

[0063] In this specification, the words "parallel" and "orthogonal" are used, but these do not mean only "parallel" and "orthogonal" in the strict sense, but also include "parallel" and "orthogonal" and may also mean a "substantially parallel" or "substantially orthogonal" state within a range in which the functions can be exerted. [Explanation of symbols]

[0064] 1...Elevator, 10...Door rail, 11...Driven pulley, 12...Transmission belt, 20, 40, 50, 60...Fixing bracket, 21...Door motor, 21a...Pulley surface, 22...Drive pulley, 24, 44, 54, 64...First surface portion, 24a, 54a, 64a...Front surface, 24b, 54b, 64b...Opposite surface, 24c, 44c, 54c, 64c...Fixing hole, 25, 45, 55, 65...Second surface portion, 25c, 45c, 55c, 65c...Fixing hole, 66...Notch, 100...Hoisting machine, 120...Cab, 121...Cab room, 125, 125A, 125B, 125C...Door opening and closing device, 130, 130A... rail frame, 131... front portion, 131c... fixing hole, 132, 132A... roof portion, 132a... upper surface, 132b... lower surface, 132c... fixing hole, 135... car side door, 138... opening

Claims

1. A hollow cage, a door opening and closing device that is provided in the car room and supports a car side door so that the car side door can be opened and closed, The door opening and closing device is a rail frame fixed to the car; a fixing bracket fixed to the rail frame; a door motor fixed to the fixing bracket, The rail frame is a front portion to which the door rail is fixed; a roof portion protruding from a vertical upper end portion of the front portion in a direction away from the car chamber, The fixing bracket is a first surface portion to which the door motor is fixed and which faces a front surface portion of the rail frame; a second surface portion that projects from a vertical upper end portion of the first surface portion toward the car and is fastened and fixed to a roof portion of the rail frame; Car.

2. The second surface portion is placed on an upper surface of the roof portion facing upward in the vertical direction. The car according to claim 1.

3. The door motor has a drive pulley around which a transmission belt is wound, the drive pulley being fixed to the first surface portion facing the car and the rail frame. The car according to claim 1.

4. The door motor is fixed to a surface of the first surface portion that faces the rail frame. The car according to claim 3.

5. the door motor is disposed on a front surface of the first surface portion opposite to an opposing surface facing the rail frame, with a pulley surface on which the drive pulley is provided overlapping; The first surface portion is formed with a notch into which the drive pulley of the door motor can be inserted. The car according to claim 3.

6. Equipped with a car that ascends and descends through the elevator shaft, The car is A hollow cage, a door opening and closing device that is provided in the car room and supports a car side door so that the car side door can be opened and closed, The door opening and closing device is a rail frame fixed to the car; a fixing bracket fixed to the rail frame; a door motor fixed to the fixing bracket, The rail frame is a front portion to which the door rail is fixed; a roof portion protruding from a vertical upper end portion of the front portion in a direction away from the car chamber, The fixing bracket is a first surface portion to which the door motor is fixed and which faces a front surface portion of the rail frame; a second surface portion that projects from a vertical upper end portion of the first surface portion toward the car and is fastened and fixed to a roof portion of the rail frame; Elevator.

7. Rail frame and a fixing bracket fixed to the rail frame; a door motor fixed to the fixing bracket, The rail frame is a front portion to which the door rail is fixed; a roof portion protruding from a vertical upper end of the front portion, The fixing bracket is a first surface portion to which the door motor is fixed and which faces a front surface portion of the rail frame; a second surface portion that protrudes from the vertical upper end of the first surface portion and is fastened and fixed to the roof portion of the rail frame; Door opening and closing device.

Images