Car entrance height adjustment device for elevator

Abstract

To provide a car entrance height adjustment device for an elevator, which can prevent exposure of an upper part of a landing entrance into a car when the car entrance opens.SOLUTION: In a car entrance height adjustment device 8 for an elevator, an upper frame 81 forms an upper part of a car entrance 61 provided in a car 6. The upper frame 81 is vertically movable with respect to the car 6. The heights of the landing entrances 7 provided at at least two floors, among landing entrances 7 respectively provided at a plurality of floors where the car 6 can stop, are different from each other. A control unit 86 controls, in a state where the car entrance 61 is closed, a drive unit 83 on the basis of car next stop floor information to vertically move the upper frame 81 with respect to the car 6, and matches the height of the car entrance 61 with that of the landing entrance 7 at a next stop floor of the car 6.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to an elevator car doorway height adjustment device. [Background technology]

[0002] Patent document 1 discloses an elevator in which engagement devices are provided at different mounting heights on the left and right doors of the car, allowing the car door to engage with the floor door at any of multiple floors with different entrance heights. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 52-93044 Summary of the Invention [Problem to be solved by the invention]

[0004] The height of the car's entrances and exits is determined based on the height of the highest entrance and exit among the entrances and exits on each floor. Therefore, if the entrance and exit height on a specific floor among multiple floors is lower than the entrance and exit heights on other floors, when the entrance and exit height of a car stopped at that floor opens, the top of the entrance and exit on that floor will be exposed inside the car. This will make the entrance and exit look unattractive when viewed from inside the car.

[0005] The present disclosure is intended to solve the above-mentioned problems, and aims to provide an elevator car entrance height adjustment device that can prevent the upper part of the landing entrance from being exposed to the inside of the car when the car entrance is open. [Means for solving the problem]

[0006] The elevator car entrance / exit height adjustment device according to the present disclosure comprises an upper frame that forms the upper part of the car entrance / exit provided on the car and is movable in the vertical direction relative to the car, a guide unit that guides the vertical movement of the upper frame relative to the car, a drive unit that generates a drive force that moves the upper frame in the vertical direction, and a control unit that controls the drive unit, and of the landing entrances / exits provided on each of a plurality of floors at which the car can stop, the heights of the landing entrances / exits provided on at least two floors are different from each other, and the control unit controls the drive unit based on car next stop floor information that identifies the next stopping floor of the car when the car entrance / exit is closed, thereby moving the upper frame in the vertical direction relative to the car and matching the height of the car entrance / exit with the height of the landing entrance / exit of the next stopping floor. [Effects of the Invention]

[0007] According to the elevator car entrance height adjustment device of the present disclosure, it is possible to prevent the upper part of the landing entrance from being exposed to the inside of the car when the car entrance is open. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a configuration diagram schematically showing a building in which an elevator according to a first embodiment is installed. [Figure 2] 1. FIG. 4 is a diagram showing a state in which the car has stopped at the second building floor B while the height of the car entrance in FIG. 1 is maintained at the upper limit height. [Figure 3] 1. FIG. 4 is a diagram showing a state in which the car has stopped at a parking floor P while the height of the car entrance in FIG. 1 is maintained at the upper limit height. [Figure 4] 2 is a side view of a main part schematically showing a state in which the car entrance height adjusting device of FIG. 1 is provided on a car. FIG. [Figure 5] FIG. 5 is a block diagram showing the car entrance height adjusting device and the control device shown in FIG. 4. [Figure 6] 5 is a side view of a main part schematically showing a state in which an object is present at the car entrance of FIG. 4. FIG. [Figure 7] 5 is a diagram showing a schematic configuration of a linked notification device of the notification unit in FIG. 4. FIG. [Figure 8] 8 is an explanatory diagram illustrating the operation of the linked notification device of FIG. 7. [Figure 9] 5 is a front view schematically showing an electrically controlled notification device of the notification unit of FIG. 4. FIG. [Figure 10] 5 is a flowchart showing the operation of the control unit in FIG. 4. [Figure 11] 11 is a flowchart showing the car entrance height adjustment process in step S4 of FIG. [Figure 12] 12 is a flowchart showing the car entrance height increasing process in step S12 of FIG. [Figure 13] FIG. 10 is a schematic diagram showing a building in which an elevator according to a second embodiment is installed. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following describes embodiments of the subject matter of the present disclosure with reference to the accompanying drawings. In each drawing, identical or corresponding parts are designated by the same reference numerals, and redundant explanations are appropriately simplified or omitted. Note that the subject matter of the present disclosure is not limited to the following embodiments, and any component of the embodiments may be modified or omitted within the scope of the gist of the present disclosure.

[0010] Embodiment 1 FIG. 1 is a schematic diagram showing a building in which an elevator according to the first embodiment is installed. The building 1 has multiple floors, including a parking floor P, a first building floor A, a second building floor B, and a third building floor C. The parking floor P is located in the basement of the building 1, and the first building floor A, the second building floor B, and the third building floor C are located on the ground floor of the building 1. On the ground floor of the building 1, the second building floor B is the floor above the first building floor A, and the third building floor C is the floor above the second building floor B. In this embodiment, the third building floor C is the top floor of the building 1.

[0011] An elevator machine room 2 is provided on the roof of building 1. A hoistway 3 is provided in building 1 along the height direction of building 1. The hoistway 3 runs from parking floor P through first building floor A and second building floor B, and reaches third building floor C. The machine room 2 is located above the hoistway 3.

[0012] A hoisting machine 4 and a control device 5 are installed in the machine room 2. A car 6 is provided in the hoistway 3 so as to be movable up and down. The car 6 is suspended in the hoistway 3 by a suspension body (not shown) that is wound around the drive sheave of the hoisting machine 4. A rope or belt is used as the suspension body. The car 6 moves up and down in the hoistway 3 in accordance with the rotation of the drive sheave of the hoisting machine 4.

[0013] The car 6 is provided with a car entrance 61. A pair of car doors 62 that can open and close the car entrance 61 are also attached to the car 6. The pair of car doors 62 move relative to the car 6 in the opening direction of the car entrance 61 while interlocking with each other due to the driving force of a door drive device (not shown) mounted on the car 6. The car entrance 61 is opened and closed by the pair of car doors 62 moving relative to the car 6 in the opening direction of the car entrance 61.

[0014] The control device 5 controls the operation of the elevator. Therefore, the operation of the hoisting machine 4 is controlled by the control device 5. The car 6 can stop at each of the parking floor P, the first building floor A, the second building floor B, and the third building floor C by controlling the hoisting machine 4 by the control device 5.

[0015] A car control panel (not shown) is provided inside the car 6. The car control panel can be operated inside the car 6. The car control panel transmits a call signal for a destination floor selected by operating the car control panel to the control device 5.

[0016] A hall operating panel (not shown) is provided at each floor's hall. The hall operating panel can be operated at each floor's hall. When a hall operating panel is operated, a call signal for the floor where the operated hall operating panel is installed is transmitted from the hall operating panel to the control device 5. The control device 5 controls the hoisting machine 4 based on the call signals from the car operating panel and each hall operating panel.

[0017] Of the floor heights of the multiple floors in building 1, at least two floors have different floor heights. The floor height of a floor is the height from the floor surface of the floor directly above. In this embodiment, of the floor height H0 of parking floor P, the floor height H1 of first building floor A, the floor height H2 of second building floor B, and the floor height H3 of third building floor C, the floor height H0 of parking floor P and the floor height H2 of second building floor B are different from the floor height H1 of first building floor A and the floor height H3 of third building floor C. The floor height H1 of first building floor A and the floor height H3 of third building floor C are the same. The floor height H0 of parking floor P and the floor height H2 of second building floor B are lower than the floor height H1 of first building floor A and the floor height H3 of third building floor C. The floor height H0 of parking floor P is lower than the floor height H2 of second building floor B. That is, in this embodiment, the relationship of the floor heights of the respective floors is floor height H1=floor height H3>floor height H2>floor height H0.

[0018] A landing entrance / exit 7 is provided on each floor. The height of each landing entrance / exit 7 is determined according to the floor height of the floor on which the landing entrance / exit 7 is provided. Therefore, the heights of the landing entrance / exit 7 provided on at least two floors among the landing entrance / exit 7 are different from each other. In this embodiment, the height h0 of the landing entrance / exit 7 on the parking floor P and the height h2 of the landing entrance / exit 7 on the second building floor B are different from the height h1 of the landing entrance / exit 7 on the first building floor A and the height h3 of the landing entrance / exit 7 on the third building floor C. The height h1 of the landing entrance / exit 7 on the first building floor A and the height h3 of the landing entrance / exit 7 on the third building floor C are the same. The height h0 of the landing entrance / exit 7 on the parking floor P and the height h2 of the landing entrance / exit 7 on the second building floor B are lower than the height h1 of the landing entrance / exit 7 on the first building floor A and the height h3 of the landing entrance / exit 7 on the third building floor C. The height h0 of the landing entrance 7 on the parking floor P is lower than the height h2 of the landing entrance 7 on the second building floor B. That is, in this embodiment, the relationship between the heights of the landing entrances 7 on each floor, i.e., the heights of the entrances on each floor, is as follows: entrance height h1 on first building floor A = entrance height h3 on third building floor C > entrance height h2 on second building floor B > entrance height h0 on parking floor P.

[0019] A pair of landing doors 71 capable of opening and closing the landing entrance 7 is attached to each floor. The pair of landing doors 71 are movable in the direction of the entrance of the landing entrance 7 while interlocking with each other. The landing entrance 7 is opened and closed by the pair of landing doors 71 moving in the direction of the entrance of the landing entrance 7. The height of each landing door 71 is determined according to the height of the landing entrance 7 that the landing door 71 opens and closes.

[0020] At a floor where the car 6 is stopped, the car entrance 61 faces the landing entrance 7 provided at that floor, and the pair of car doors 62 faces the pair of landing doors 71. At a floor where the car 6 is stopped, when the pair of car doors 62 move in the direction of the opening of the car entrance 61 by the driving force of the door drive device, each landing door 71 moves in the direction of the opening of the landing entrance 7 while engaging with the car door 62 via an engaging device (not shown). As a result, at the floor where the car 6 is stopped, the car entrance 61 and the landing entrance 7 are opened and closed simultaneously.

[0021] The car 6 is provided with an elevator car entrance height adjustment device 8. The car entrance height adjustment device 8 adjusts the height of the car entrance 61. The height of the car entrance 61 is adjusted by the car entrance height adjustment device 8 between an upper limit height and a lower limit height that is lower than the upper limit height.

[0022] The upper limit height of the car entrance 61 is determined to match the height of the highest hall entrance 7 among the heights of the respective hall entrances 7. In this embodiment, the upper limit height of the car entrance 61 matches the height h1 of the hall entrance 7 on the first building floor A and the height h3 of the hall entrance 7 on the third building floor C.

[0023] The lower limit height of the car entrance 61 is determined to match the height of the lowest landing entrance 7 among the heights of the landing entrances 7. In this embodiment, the lower limit height of the car entrance 61 matches the height h0 of the landing entrance 7 on the parking floor P.

[0024] FIG. 2 is a configuration diagram showing a state in which the car 6 has stopped at the second building floor B while the height of the car entrance 61 in FIG. 1 is maintained at the upper limit height. In a state in which the height of the car entrance 61 is maintained at the upper limit height, when the car 6 stops at the second building floor B, the platform entrance 7, which is lower in height than the car entrance 61, faces the car entrance 61. When the car entrance 61 and the platform entrance 7 open in this state, the upper part of the platform entrance 7 is exposed inside the car 6. As a result, the back side of the upper part of the platform entrance 7, the door mechanism that interlocks the pair of platform doors 71, and the like are exposed inside the car 6, and the appearance of the car entrance 61 and the platform entrance 7 when viewed from inside the car 6 is poor.

[0025] FIG. 3 is a configuration diagram showing a state in which the car 6 has stopped at the parking floor P while the height of the car entrance 61 in FIG. 1 is maintained at the upper limit height. In a state in which the height of the car entrance 61 is maintained at the upper limit height, even when the car 6 has stopped at the parking floor P, the hall entrance 7, which is lower in height than the car entrance 61, faces the car entrance 61, just as when the car 6 has stopped at floor B of the second building. Therefore, even when the car 6 has stopped at the parking floor P, when the car entrance 61 and the hall entrance 7 open, the upper part of the hall entrance 7 is exposed to the inside of the car 6. The height h0 of the hall entrance 7 at the parking floor P is lower than the height h2 of the hall entrance 7 at floor B of the second building. Therefore, when the car 6 has stopped at the parking floor P, the amount of exposure of the upper part of the hall entrance 7 to the inside of the car 6 is even greater than when the car 6 has stopped at floor B of the second building. As a result, when the car 6 stops at the parking floor P, the appearance of the car entrance / exit 61 and the landing entrance / exit 7 when viewed from inside the car 6 becomes even worse than when the car 6 stops at the second building floor B.

[0026] In this embodiment, when the car 6 stops at the second building floor B, the height of the car entrance 61 is adjusted by the car entrance height adjustment device 8 to a height that matches the height h2 of the landing entrance 7 on the second building floor B. Also, in this embodiment, when the car 6 stops at the parking floor P, the height of the car entrance 61 is adjusted by the car entrance height adjustment device 8 to a height that matches the height h0 of the landing entrance 7 on the parking floor P. When the car 6 stops at the first building floor A or the third building floor C, the height of the car entrance 61 is maintained at the upper limit height.

[0027] Fig. 4 is a side view of a main part, schematically showing a state in which the car entrance height adjusting device 8 of Fig. 1 is provided on the car 6. Fig. 5 is a block diagram showing the car entrance height adjusting device 8 and the control device 5 of Fig. 4. As shown in Fig. 5, the control device 5 has an input / output unit 51 and an operation control unit 52.

[0028] The input / output unit 51 is capable of receiving call signals from the car operating panel and each hall operating panel. The call signal sent to the control device 5 from at least one of the car operating panel and each hall operating panel is received by the input / output unit 51.

[0029] The operation control unit 52 performs call registration of the destination floor specified by the call signal received by the input / output unit 51, and determines the next stopping floor for the car 6 based on the registered call destination floor. The operation control unit 52 sends a control command to the hoist 4 from the input / output unit 51 to move the car 6 to the determined next stopping floor. The hoist 4 operates in accordance with the control command from the operation control unit 52, causing the car 6 to move to the next stopping floor. The operation control unit 52 also sends information specifying the determined next stopping floor for the car 6 from the input / output unit 51 to the car entrance height adjustment device 8 as car next stopping floor information.

[0030] As shown in Figures 4 and 5, the car entrance / exit height adjustment device 8 has an upper frame 81, a guide unit 82, a drive unit 83, a cover 84, an input / output unit 85, a control unit 86, a detection unit 87, and an alarm unit 88.

[0031] As shown in Fig. 4, the upper frame 81 forms the upper part of the car entrance 61. The upper frame 81 is arranged along the opening direction of the car entrance 61. The surface of the upper frame 81 exposed to the inside of the car 6 is a design surface.

[0032] The upper frame 81 is movable in the vertical direction relative to the car 6. The height of the car entrance 61 changes in accordance with the vertical movement of the upper frame 81 relative to the car 6. The upper frame 81 is movable relative to the car 6 between an upper limit position where the height of the car entrance 61 is the upper limit height, and a lower limit position where the height of the car entrance 61 is the lower limit height.

[0033] The guide portion 82 guides the vertical movement of the upper frame 81 relative to the car 6. The guide portion 82 has a pair of frame fixing plates 821 and a pair of car fixing members 822.

[0034] The pair of frame fixing plates 821 are fixed to both longitudinal ends of the upper frame 81. Each frame fixing plate 821 is formed with a long hole 823 extending in the up-down direction.

[0035] The pair of car fixing members 822 are fixed to the top plate 63 of the car 6. The pair of car fixing members 822 are arranged corresponding to the pair of frame fixing plates 821. A portion of the car fixing member 822 is slidably inserted into the elongated hole 823 of the corresponding frame fixing plate 821. The frame fixing plate 821 is guided along the elongated hole 823 relative to the car fixing member 822, thereby guiding the movement of the upper frame 81 relative to the car 6 in the up and down direction.

[0036] The drive unit 83 is fixed to the top plate 63 of the car 6. The drive unit 83 generates a drive force that moves the upper frame 81 up and down relative to the car 6. A motor, for example, is used as the drive unit 83. The drive unit 83 is connected to the upper frame 81 at a midpoint in the longitudinal direction of the upper frame 81 via a vertical movement mechanism (not shown). The drive force of the drive unit 83 is transmitted to the upper frame 81 via the vertical movement mechanism, causing the upper frame 81 to move up and down relative to the car 6.

[0037] The cover 84 is attached to the top plate 63 of the car 6 with screws 841. The cover 84 covers the gap between the top plate 63 of the car 6 and the upper frame 81. In this way, the cover 84 prevents foreign matter such as dust and dirt, noise, and the like from entering the inside of the car 6 from the outside through the gap between the top plate 63 of the car 6 and the upper frame 81.

[0038] The input / output unit 85 and the control unit 86 are mounted on an on-car control panel fixed to the top plate 63 of the car 6. The input / output unit 85 is capable of receiving next car stop floor information from the control device 5. The next car stop floor information sent from the control device 5 to the car entrance height adjustment device 8 is received by the input / output unit 85.

[0039] The control unit 86 controls the door drive device to move the pair of car doors 62, thereby opening and closing the car entrance / exit 61. The control unit 86 also acquires the car's next stopping floor information received by the input / output unit 85. The control unit 86 controls the drive unit 83 based on the car's next stopping floor information, thereby moving the upper frame 81 in the vertical direction relative to the car 6, and aligning the height of the car entrance / exit 61 with the height of the hall entrance / exit 7 at the next stopping floor.

[0040] With the car entrance 61 closed, the control unit 86 controls the drive unit 83 to move the upper frame 81 in the vertical direction relative to the car 6. After the movement of the upper frame 81 relative to the car 6 is completed, the control unit 86 controls the door drive device to move the pair of car doors 62 and open the car entrance 61.

[0041] As shown in FIG. 5, the control unit 86 includes a storage unit 861 and a processing unit 862.

[0042] Information associating each floor of the building 1 with the height of each landing entrance / exit 7 is stored in advance in the storage unit 861 as landing entrance / exit information. In this embodiment, information associating the parking floor P, the first building floor A, the second building floor B, and the third building floor C with the entrance / exit height h0, the entrance / exit height h1, the entrance / exit height h2, and the entrance / exit height h3 is stored in advance in the storage unit 861 as landing entrance / exit information.

[0043] The processing unit 862 specifies the height of the hall entrance / exit 7 of the next stopping floor, based on the car's next stopping floor information received by the input / output unit 85 and the hall entrance / exit information stored in advance in the storage unit 861. The processing unit 862 controls the drive unit 83 to move the upper frame 81 in a direction in which the height of the car entrance / exit 61 matches the height of the specified hall entrance / exit 7.

[0044] As shown in Fig. 4, the detection unit 87 is provided at the lower end of the upper frame 81. The detection unit 87 detects whether or not an object is present at the car entrance 61, and measures the vertical distance from the upper frame 81 to the object as the object detection distance. Examples of objects detected by the detection unit 87 include some of the passengers inside the car 6 and the passengers' luggage inside the car 6. In this embodiment, an optical distance sensor having a light-emitting unit and a light-receiving unit is used as the detection unit 87. The detection unit 87 is not limited to an optical distance sensor, and an ultrasonic distance sensor or the like may also be used.

[0045] The light-emitting unit of the detection unit 87 emits light downward from the upper frame 81. The light-receiving unit of the detection unit 87 receives light that is emitted from the light-emitting unit of the detection unit 87 and returns to the upper frame 81. When no object is present at the car entrance 61, as shown in FIG. 4, the light emitted from the light-emitting unit of the detection unit 87 is reflected by the car floor 64 of the car 6 and returns to the light-receiving unit of the detection unit 87. As a result, when no object is present at the car entrance 61, the car floor 64 of the car 6 acts as a reflector of the light emitted from the light-emitting unit of the detection unit 87.

[0046] 6 is a side view of the main part schematically showing a state in which an object is present at the car entrance 61 of FIG. 4. When an object 100 is present at the car entrance 61, light emitted from the light-emitting unit of the detection unit 87 is reflected by the object 100 at the car entrance 61 and returns to the light-receiving unit of the detection unit 87. As a result, when the object 100 is present at the car entrance 61, the object 100 at the car entrance 61 becomes a reflector of the light emitted from the light-emitting unit of the detection unit 87.

[0047] The detection unit 87 measures the vertical distance from the upper frame 81 to the reflective object as the object detection distance, based on the time from when light is emitted from the light-emitting unit of the detection unit 87 to when the light is received by the light-receiving unit of the detection unit 87. The detection unit 87 detects the presence of an object 100 at the car entrance / exit 61 when the measured object detection distance is equal to or less than a preset detection reference value. When the detection unit 87 detects the presence of an object 100 at the car entrance / exit 61, it sends a detection signal including information about the object detection distance to the control unit 86.

[0048] When the upper frame 81 is being moved downward, the control unit 86 determines whether or not the object 100 is located within the movable range of the upper frame 81 based on the detection result of the detection unit 87, i.e., information on the object detection distance measured by the detection unit 87. When the upper frame 81 is being moved downward, the control unit 86 acquires the movement distance of the upper frame 81 from the upper limit position of the upper frame 81 as the upper frame movement distance.

[0049] The determination of whether or not the object 100 is located within the movable range of the upper frame 81 is made by comparing the remaining distance, which is the movable range of the upper frame 81 minus the upper frame movement distance, with the object detection distance measured by the detection unit 87. That is, if the object detection distance is greater than the remaining distance, the control unit 86 makes a normal determination that the object 100 is not located within the movable range of the upper frame 81. On the other hand, if the object detection distance is equal to or less than the remaining distance, the control unit 86 makes an abnormal determination that the object 100 is located within the movable range of the upper frame 81.

[0050] If the control unit 86 determines that the condition is normal, it controls the drive unit 83 to continue moving the upper frame 81. If the control unit 86 determines that the condition is abnormal, it controls the drive unit 83 to forcibly stop the movement of the upper frame 81.

[0051] The notification unit 88 issues a notification regarding the movement of the upper frame 81 as an in-car notification to the inside of the car 6. The notification unit 88 has an interlocking notification device and an electrically controlled notification device.

[0052] Fig. 7 is a configuration diagram that schematically shows the interlocking alarm device of the alarm unit 88 of Fig. 4. The interlocking alarm device 881 of the alarm unit 88 is provided in the drive unit 83. The interlocking alarm device 881 generates an attention-calling sound by being mechanically interlocked with the operation of the drive unit 83. The interlocking alarm device 881 performs an in-car alarm by generating an attention-calling sound. The attention-calling sound generated by the interlocking alarm device 881 may be a melody that plays in accordance with the speed of movement of the upper frame 81.

[0053] The linked alarm device 881 has a cylinder drum 882, multiple protrusions 883, and a vibration plate 884. For simplicity, only one protrusion 883 is shown in Fig. 7. The cylinder drum 882 is connected to a drive unit 83. The cylinder drum 882 rotates in mechanical interlocking relation with the operation of the drive unit 83.

[0054] The plurality of protrusions 883 are provided on the outer peripheral surface of the cylinder drum 882. The position of each protrusion 883 on the cylinder drum 882 is determined based on certain conditions. The plurality of protrusions 883 rotate integrally with the cylinder drum 882.

[0055] The vibrating plate 884 is fixed to the car 6. The vibrating plate 884 is arranged with its tip facing the outer circumferential surface of the cylindrical drum 882. The tip of the vibrating plate 884 is arranged in the path of each of the protrusions 883 when the cylindrical drum 882 rotates.

[0056] Fig. 8 is an explanatory diagram illustrating the operation of linked alarm device 881 of Fig. 7. In linked alarm device 881, as cylinder drum 882 rotates and protrusion 883 passes the position of vibrating plate 884, vibrating plate 884 is bounced off protrusion 883. Vibrating plate 884 generates an attention-calling sound when bounced off protrusion 883.

[0057] Fig. 9 is a front view showing a schematic diagram of the electrically controlled notification device of the notification unit 88 of Fig. 4. The electrically controlled notification device 885 of the notification unit 88 is provided inside the car 6. In this embodiment, the electrically controlled notification device 885 is provided on a sleeve wall installed on the side of the car entrance / exit 61.

[0058] The electrically controlled alarm device 885 has a display screen exposed inside the car 6 and a speaker provided inside the car 6. Under the control of the control unit 86, the electrically controlled alarm device 885 displays a warning message on the display screen and emits a warning sound from the speaker. Examples of warning messages include a message to warn passengers, such as the message "Stay away from the door" as shown in FIG. 9. Examples of warning sounds emitted by the speaker of the electrically controlled alarm device 885 include a voice that conveys the content of the warning message. The electrically controlled alarm device 885 performs warnings inside the car by displaying a warning message and emitting a warning sound.

[0059] When the control unit 86 determines that an abnormality has occurred based on the detection result of the detection unit 87, the control unit 86 controls the electrically controlled notification device 885 to cause the electrically controlled notification device 885 to issue a car notification.

[0060] Next, the operation of the control unit 86 of the car entrance height adjustment device 8 will be described. Fig. 10 is a flowchart showing the operation of the control unit 86 of Fig. 4. In step S1, the control unit 86 determines whether or not it has received car next stop floor information from the control device 5. If the control unit 86 has not received car next stop floor information in step S1, the control unit 86 repeats the determination of whether or not it has received car next stop floor information until it receives car next stop floor information from the control device 5. If the control unit 86 has received car next stop floor information in step S1, the control unit 86 proceeds to step S2.

[0061] In step S2, the control unit 86 determines whether the car 6 is moving. If the car 6 is not moving and is stopped at any floor, the control unit 86 determines whether the car 6 is moving until the car 6 starts moving. On the other hand, if the car 6 is moving, the control unit 86 proceeds to step S3.

[0062] In step S3, the control unit 86 determines whether the height of the hall entrance / exit 7 at the next stopping floor specified by the car's next stopping floor information is different from the height of the hall entrance / exit 7 at the departure floor of the car 6. Hereinafter, the height of the hall entrance / exit 7 at the next stopping floor will be referred to as the "next stopping floor entrance / exit height," and the height of the hall entrance / exit 7 at the departure floor of the car 6 will be referred to as the "departure floor entrance / exit height."

[0063] If the height of the next stop floor entrance / exit differs from the height of the departure floor entrance / exit in step S3, the control unit 86 proceeds to step S4. In step S4, the control unit 86 performs a car entrance / exit height adjustment process. The car entrance / exit height adjustment process in step S4 is a process for matching the height of the car entrance / exit 61 with the height of the next stop floor entrance / exit. The car entrance / exit height adjustment process is performed with the car entrance / exit 61 closed. When the car entrance / exit height adjustment process in step S4 is completed, the control unit 86 proceeds to step S5.

[0064] On the other hand, if the height of the entrance / exit of the next stop floor is the same as the height of the entrance / exit of the departure floor in step S3, the control unit 86 proceeds to step S5.

[0065] In step S5, the control unit 86 determines whether or not the car 6 has arrived at the next stopping floor based on information from the control device 5. If the car 6 has not arrived at the next stopping floor, the control unit 86 repeats the determination of whether or not the car 6 has arrived at the next stopping floor until the car 6 arrives at the next stopping floor.

[0066] On the other hand, if the car 6 has arrived at the next stopping floor, the control unit 86 proceeds to step S6. In step S6, the control unit 86 controls the door drive device to open the car entrance 61. This allows passengers to get on and off the car 6 at the next stopping floor. Thereafter, in step S7, the control unit 86 closes the car entrance 61, and then returns the process to step S1. Thereafter, the control unit 86 repeats the processes of steps S1 to S7.

[0067] Next, the car entrance / exit height adjustment processing in step S4 will be described. Fig. 11 is a flowchart showing the car entrance / exit height adjustment processing in step S4 of Fig. 10. When the control unit 86 performs the car entrance / exit height adjustment processing, the control unit 86 determines in step S11 whether the height of the departure floor entrance / exit is higher than the height of the next stop floor entrance / exit.

[0068] If the height of the departure floor entrance / exit is not higher than the height of the entrance / exit of the next stop floor, the control unit 86 proceeds to step S12. In step S12, the control unit 86 performs the car entrance / exit height enlargement processing, and then completes the car entrance / exit height adjustment processing.

[0069] On the other hand, if the height of the departure floor entrance / exit is higher than the height of the next stop floor entrance / exit, the control unit 86 proceeds to step S13. In step S13, the control unit 86 turns on the power of each of the drive unit 83 and the detection unit 87, and proceeds to step S14.

[0070] In step S14, the control unit 86 controls the drive unit 83 to start moving the upper frame 81 in a direction in which the height of the car entrance / exit 61 matches the height of the entrance / exit at the next stop floor.

[0071] For example, when the car 6 moves from the third building floor C to the second building floor B shown in Figure 1, the departure floor entrance height h3 is higher than the next stop floor entrance height h2 by a dimension of (h3-h2) [mm]. Therefore, in step S14, the control unit 86 starts moving the upper frame 81 downward toward a target position that is lower by a distance of (h3-h2) [mm] from the current position of the upper frame 81.

[0072] Furthermore, when the car 6 moves from the second building floor B to the parking floor P shown in Figure 1, the departure floor entrance height h2 is higher than the next stop floor entrance height h0 by a dimension of (h2 - h0) [mm]. Therefore, in step S14, the control unit 86 starts moving the upper frame 81 downward toward a target position that is lower by a distance of (h2 - h0) [mm] from the current position of the upper frame 81. When the upper frame 81 starts moving downward, the interlocking alarm device 881 of the alarm unit 88 mechanically interlocks with the operation of the drive unit 83 to generate an attention-calling sound.

[0073] After starting the movement of the upper frame 81 in step S14, the control unit 86 proceeds to step S15. In step S15, the control unit 86 determines, based on the detection result of the detection unit 87, whether or not the object 100 is located within the movable range of the upper frame 81.

[0074] If the control unit 86 determines in step S15 that an object 100 is located within the movable range of the upper frame 81, the control unit 86 proceeds to step S16. In step S16, the control unit 86 controls the drive unit 83 to forcibly stop the movement of the upper frame 81, and controls the alarm unit 88 to issue an in-car alarm to notify the movement of the upper frame 81, and returns the process to step S15. The control unit 86 continues to stop the movement of the upper frame 81 and issue an in-car alarm until the abnormality determination in step S15 is resolved. This makes it possible to alert passengers inside the car 6 that an obstruction to the movement of the upper frame 81 has occurred.

[0075] If the control unit 86 makes a normal judgment in step S15 that the object 100 is not located within the movable range of the upper frame 81, then in step S17, the control unit 86 controls the drive unit 83 to continue moving the upper frame 81, and proceeds to step S18.

[0076] In step S18, the control unit 86 determines whether or not the upper frame 81 has reached the target position. If the upper frame 81 has not reached the target position, the control unit 86 returns the process to step S15. The control unit 86 repeats the processes of steps S15 to S18 until the upper frame 81 reaches the target position.

[0077] When the upper frame 81 reaches the target position in step S18, the control unit 86 controls the drive unit 83 in step S19 to stop the movement of the upper frame 81 and complete the downward movement of the upper frame 81. As a result, the height of the car entrance / exit 61 matches the height of the entrance / exit of the next stopping floor.

[0078] Therefore, for example, when the car 6 moves from the third building floor C to the second building floor B, the height of the car entrance / exit 61 decreases from a height that corresponds to the departure floor entrance / exit height h3 to a height that corresponds to the next stop floor entrance / exit height h2. Also, when the car 6 moves from the second building floor B to the parking floor P, the height of the car entrance / exit 61 decreases from a height that corresponds to the departure floor entrance / exit height h2 to a height that corresponds to the next stop floor entrance / exit height h0.

[0079] Thereafter, in step S20, the control unit 86 turns off the power of each of the drive unit 83 and the detection unit 87, and completes the car entrance height adjustment process.

[0080] Next, the car entrance height enlarging process in step S12 of the car entrance height adjustment process will be described. Fig. 12 is a flowchart showing the car entrance height enlarging process in step S12 of Fig. 11. When the control unit 86 performs the car entrance height enlarging process, the control unit 86 turns on the power of the drive unit 83 in step S21, and proceeds to step S22.

[0081] In step S22, the control unit 86 controls the drive unit 83 to start moving the upper frame 81 in a direction in which the height of the car entrance / exit 61 matches the height of the entrance / exit of the next stopping floor. When the upper frame 81 starts moving, the interlocking alarm device 881 of the alarm unit 88 is mechanically interlocked with the operation of the drive unit 83 to generate an attention-grabbing sound.

[0082] For example, when the car 6 moves from the second building floor B to the first building floor A shown in Figure 1, the departure floor entrance height h2 is lower than the next stop floor entrance height h1 by the dimension |h2-h1| [mm]. Therefore, in step S22, the control unit 86 starts moving the upper frame 81 upward toward a target position that is higher by the distance |h2-h1| [mm] from the current position of the upper frame 81.

[0083] 1, the height h0 of the departure floor entrance / exit is lower than the height h3 of the next stop floor entrance / exit by the dimension |h0-h3| [mm]. Therefore, in step S22, the control unit 86 starts moving the upper frame 81 upward toward a target position that is higher than the current position of the upper frame 81 by the distance |h0-h3| [mm].

[0084] In the car entrance height expansion process, the upper frame 81 moves upward, and therefore, there is a low possibility that the object 100 will obstruct the movement of the upper frame 81. Therefore, in the car entrance height expansion process, the control unit 86 does not make a determination based on the detection result of the detection unit 87.

[0085] After starting the movement of the upper frame 81 in step S22, the control unit 86 controls the drive unit 83 to continue the movement of the upper frame 81 in step S23. Thereafter, the control unit 86 determines in step S24 whether the upper frame 81 has reached the target position. If the upper frame 81 has not reached the target position, the control unit 86 returns the process to step S23 and continues the movement of the upper frame 81 in step S23 until the upper frame 81 reaches the target position.

[0086] If the upper frame 81 reaches the target position in step S24, the control unit 86 controls the drive unit 83 in step S25 to stop the movement of the upper frame 81, completes the upward movement of the upper frame 81, and proceeds to step S26. As a result, the height of the car entrance / exit 61 matches the height of the entrance / exit of the next stopping floor.

[0087] Therefore, for example, when the car 6 moves from the third building floor C to the second building floor B, the height of the car entrance / exit 61 decreases from a height that corresponds to the departure floor entrance / exit height h3 to a height that corresponds to the next stop floor entrance / exit height h2. Also, when the car 6 moves from the second building floor B to the parking floor P, the height of the car entrance / exit 61 decreases from a height that corresponds to the departure floor entrance / exit height h2 to a height that corresponds to the next stop floor entrance / exit height h0.

[0088] Thereafter, in step S26, the control unit 86 turns off the power supply to the drive unit 83, and completes the car entrance height enlarging process.

[0089] In this elevator car entrance height adjustment device 8, the upper frame 81 forming the upper part of the car entrance 61 is movable in the vertical direction relative to the car 6. When the car entrance 61 is closed, the control unit 86 controls the drive unit 83 based on car next stop floor information that identifies the next stop floor of the car 6, thereby matching the height of the car entrance 61 with the height of the hall entrance 7 at the next stop floor of the car 6. Therefore, when the car entrance 61 is opened at the next stop floor of the car 6, the upper part of the hall entrance 7 can be hidden by the upper frame 81. This makes it possible to prevent the upper part of the hall entrance 7 from being exposed inside the car 6 when the car entrance 61 is open. Therefore, it is possible to prevent the appearance of the car entrance 61 and the hall entrance 7 from being deteriorated when viewed from inside the car 6.

[0090] Furthermore, the interlocking notification device 881 of the notification unit 88 performs car in-cab notification by mechanically interlocking with the operation of the drive unit 83. This eliminates the need to supply power to the notification unit 88, eliminating the occurrence of electrical malfunctions related to the interlocking notification device 881. This allows for more reliable car in-cab notification.

[0091] Furthermore, the detection unit 87 detects whether or not an object 100 is present at the car entrance / exit 61, and when the object 100 is detected, measures the vertical distance from the upper frame 81 to the object 100. While the upper frame 81 is being moved downward, the control unit 86 determines whether or not the object 100 is located within the movable range of the upper frame 81 based on the detection result of the detection unit 87. Furthermore, when the control unit 86 determines an abnormality, it controls the drive unit 83 to stop the movement of the upper frame 81. This makes it possible to prevent the upper frame 81 from coming into contact with the object 100 while it is moving downward. This makes it possible to avoid the occurrence of problems caused by the upper frame 81 coming into contact with the object 100, such as a problem in which the upper frame 81 does not move normally.

[0092] Furthermore, when the control unit 86 determines that an abnormality has occurred based on the detection result of the detection unit 87, it controls the electrically controlled alarm device 885 to cause the electrically controlled alarm device 885 to issue an in-car alarm. Therefore, for example, if a passenger's luggage is within the movable range of the upper frame 81 as the object 100, the electrically controlled alarm device 885 can issue an in-car alarm to notify the passenger that the object 100 is obstructing the movement of the upper frame 81. This increases the likelihood that the object 100 will be removed from the movable range of the upper frame 81, allowing the upper frame 81 to be moved more reliably relative to the car 6.

[0093] The control unit 86 also has a memory unit 861 that stores hall entrance / exit information that associates each floor with the height of the hall entrance / exit 7, and a processing unit 862 that controls the drive unit 83 based on the car's next stop floor information and the hall entrance / exit information. Therefore, the hall entrance / exit information can be stored in advance in the memory unit 861, and the height of the hall entrance / exit 7 of the next stop floor can be easily identified by the processing unit 862. This reduces the processing load on the control unit 86, and the cost of the control unit 86 can be reduced.

[0094] Embodiment 2 Fig. 13 is a schematic diagram showing a building in which an elevator according to embodiment 2 is installed. Building 1a in this embodiment is a building in which an additional floor D has been added to building 1 shown in Fig. 1. Additional floor D has been added above third building floor C. Therefore, additional floor D is the top floor of building 1a.

[0095] In this embodiment, the machine room 2 of the elevator in Fig. 1 has been removed in conjunction with the addition of the additional floor D. Therefore, the elevator installed in building 1a has been remodeled into a machine room-less elevator without the machine room 2.

[0096] The elevator shaft 3 runs from the parking floor P through the first building floor A, the second building floor B, and the third building floor C, and reaches the top floor, the extension floor D. A hoisting machine 4 and a control device 5 are installed in the elevator shaft 3. In this embodiment, the hoisting machine 4 is installed at the bottom of the elevator shaft 3, and the control device 5 is installed on the inner wall at the bottom of the elevator shaft 3.

[0097] The car 6 can be stopped at each of the parking floor P, first building floor A, second building floor B, third building floor C and extension floor D by controlling the hoist 4 using the control device 5.

[0098] A car operating panel provided inside car 6 transmits a call signal for a destination floor selected by operating the car operating panel to the control device 5. A hall operating panel (not shown) that can be operated at the hall of each floor, including the additional floor D, is provided at the hall of each floor. At the hall of each floor, the hall operating panel transmits a call signal for the operated floor to the control device 5. The control device 5 controls the hoisting machine 4 based on the call signals from the car operating panel and each hall operating panel.

[0099] The floor height H4 of the additional floor D is a floor height in the range between the minimum and maximum of the floor heights H0 to H3 of each floor in the building 1 before the extension. The floor height H4 of the additional floor D is the height from the floor surface of the additional floor D to the roof slab level of the building 1a. In this embodiment, the relationship of the floor heights of each floor is as follows: floor height H1 of first building floor A = floor height H3 of third building floor C > floor height H2 of second building floor B > floor height H4 of additional floor D > floor height H0 of parking floor P.

[0100] Furthermore, the height h4 of the landing entrance 7 of the added floor D is within a range between the minimum and maximum values ​​of the heights h0 to h3 of the landing entrances 7 of each floor in the building 1 before the addition. In this embodiment, the relationship between the heights of the entrances on each floor is as follows: entrance height h1 of first building floor A = entrance height h3 of third building floor C > entrance height h2 of second building floor B > entrance height h4 of added floor D > entrance height h0 of parking floor P.

[0101] In the elevator renovation work associated with the addition of the additional floor D, information associating the height h4 of the landing entrance 7 on the additional floor D with the additional floor D is added as additional floor information to the landing entrance information stored in the memory unit 861 of the control unit 86. As a result, information associating each floor of the building 1a after the addition with the height of each landing entrance 7 is stored as landing entrance information in the memory unit 861. The additional floor information is stored in the memory unit 861 by software via the input / output unit 85 of the car entrance height adjustment device 8 or the input / output unit 51 of the control device 5. Other configurations and operations are the same as those in the first embodiment.

[0102] In this embodiment, for example, when the car 6 moves from the third building floor C to the extension floor D, the departure floor entrance height h3 is higher than the next stop floor entrance height h4 by a dimension of (h3-h4) [mm]. Therefore, when the car 6 moves from the third building floor C to the extension floor D, the upper frame 81 moves downward toward a target position that is lower by a distance of (h3-h4) [mm] from the current position of the upper frame 81.

[0103] Furthermore, for example, when the car 6 moves from the parking floor P to the expansion floor D, the departure floor entrance height h0 is lower than the next stop floor entrance height h4 by the dimension |h0-h4| [mm]. Therefore, when the car 6 moves from the parking floor P to the expansion floor D, the upper frame 81 moves upward toward a target position that is higher by a distance of |h0-h4| [mm] from the current position of the upper frame 81.

[0104] In this way, even if an additional floor D is added to building 1, by adding information relating the additional floor D to the height h4 of the hall entrance 7 to the hall entrance information, it is possible to identify the height of the entrance of the next floor when the next floor for car 6 is the additional floor D. This makes it possible to match the height of the car entrance 61 with the height of the hall entrance 7 of the next floor for car 6, regardless of which floor in building 1a is the next floor for car 6. Therefore, even if an additional floor D is added to building 1, it is possible to prevent the upper part of the hall entrance 7 from being exposed to the inside of car 6 when the car entrance 61 is open.

[0105] In the second embodiment, the additional floor information is stored in the storage unit 861 by software. However, a hardware switch capable of storing the additional floor information in the storage unit 861 may be provided in the car entrance height adjustment device 8. In this case, a rotary switch or the like can be used as the hardware switch.

[0106] Furthermore, in each of the above-described embodiments, when the upper frame 81 moves relative to the car 6 under the control of the control unit 86, the electrically controlled alarm device 885 of the alarm unit 88 does not issue an in-car alarm. However, the control unit 86 may control the electrically controlled alarm device 885 of the alarm unit 88 to issue an in-car alarm while moving the upper frame 81 relative to the car 6. In this way, passengers inside the car 6 can be made aware that the upper frame 81 is moving relative to the car 6, and the occurrence of a malfunction in which the upper frame 81 comes into contact with the object 100 can be more reliably avoided.

[0107] Furthermore, in each of the above-described embodiments, when the car entrance 61 is opened after the control unit 86 has completed the movement of the upper frame 81 relative to the car 6, the control unit 86 may control the notification unit 88 to cause the notification unit 88 to issue an in-car notification. In this case, the in-car notification by the notification unit 88 may be, for example, a notification that notifies the inside of the car 6 that the height of the car entrance 61 has been changed. In this way, the attention of passengers getting off the car 6 can be directed to the upper frame 81, and it is possible to prevent, for example, the passenger's luggage from coming into contact with the upper frame 81 when the passenger gets off the car 6.

[0108] Furthermore, in each of the above-described embodiments, the detection unit 87 is provided on the upper frame 81. However, the detection unit 87 does not have to be provided. Even without the detection unit 87, the upper frame 81 can be moved in the vertical direction relative to the car 6, and the upper part of the landing entrance 7 can be prevented from being exposed inside the car 6 when the car entrance 61 is opened.

[0109] Furthermore, in each of the above-described embodiments, the notification unit 88 is configured to issue an in-car notification to the inside of the car 6. However, the notification unit 88 does not have to be provided. Even without the notification unit 88, the upper frame 81 can be moved in the vertical direction relative to the car 6, and the upper part of the landing entrance 7 can be prevented from being exposed inside the car 6 when the car entrance 61 is opened.

[0110] Furthermore, in each of the above-described embodiments, the notification unit 88 may not have either the interlocking notification device 881 or the electrically controlled notification device 885. Even in this case, the upper frame 81 can be moved in the vertical direction relative to the car 6, and the upper part of the landing entrance 7 can be prevented from being exposed inside the car 6 when the car entrance 61 is opened.

[0111] Furthermore, in each of the above-described embodiments, a cover 84 that covers the gap between the top plate 63 of the car 6 and the upper frame 81 is attached to the top plate 63 of the car 6. However, the cover 84 does not have to be provided. Even in this case, the upper frame 81 can be moved in the vertical direction relative to the car 6, and the upper part of the landing entrance 7 can be prevented from being exposed inside the car 6 when the car entrance 61 is opened.

[0112] Furthermore, in each of the above-described embodiments, the interlocking alarm device 881 is mechanically interlocked with the operation of the drive unit 83 to generate an attention-calling sound to provide an in-car alert. However, the interlocking alarm device 881 may also be configured to generate an attention-calling sound to provide an in-car alert by being mechanically interlocked with the operation of the upper frame 81. In this case, the interlocking alarm device 881 has a plurality of protrusions fixed to the upper frame 81 and a vibrating plate fixed to the car 6. In the interlocking alarm device 881, when each protrusion passes the position of the vibrating plate as the upper frame 81 moves, the vibrating plate is bounced off the protrusions to generate an attention-calling sound.

[0113] In addition, in each of the above-described embodiments, an interlocking notification device 881 may be provided on the design surface of the upper frame 81. In this case, a display board with a warning display is used as the interlocking notification device 881. As the upper frame 81 moves downward, the warning display of the interlocking notification device 881 becomes exposed inside the car 6, thereby providing an in-car notification to the inside of the car 6.

[0114] The configurations described in the above embodiments are merely examples of the contents of the present disclosure. The embodiments can be combined with other known technologies. Part of the configuration of the embodiments can be omitted or modified without departing from the gist of the present disclosure.

[0115] Examples of aspects that may be included in the present disclosure are set forth below as appendices. (Appendix 1) an upper frame that forms an upper portion of a car entrance / exit provided in the car and is movable in a vertical direction relative to the car; a guide portion that guides the upper frame to move in the up and down direction relative to the car; a drive unit that generates a drive force that moves the upper frame in the up and down direction; a control unit that controls the drive unit; Equipped with Among the landing entrances provided on each of the plurality of floors at which the car can stop, the heights of the landing entrances provided on at least two floors are different from each other, The control unit controls the drive unit based on car next stop floor information that identifies the next stop floor of the car while the car entrance is closed, thereby moving the upper frame in the vertical direction relative to the car and making the height of the car entrance match the height of the landing entrance at the next stop floor. (Appendix 2) a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, The elevator car entrance height adjustment device described in Appendix 1, wherein the alarm unit performs the car interior alarm by mechanically linking with the operation of either the drive unit or the upper frame. (Appendix 3) a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, The elevator car entrance height adjustment device described in Appendix 1, wherein the control unit controls the alarm unit to make the car interior alarm while moving the upper frame relative to the car. (Appendix 4) a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, The elevator car entrance height adjustment device described in Appendix 1, wherein the control unit controls the notification unit to make the notification unit issue the car in-car notification when the car entrance is opened after completing the movement of the upper frame relative to the car. (Appendix 5) a detection unit that detects whether an object is present at the car entrance and, when the object is detected, measures the distance in the up-down direction from the upper frame to the object; 5. An elevator car entrance height adjustment device as described in any one of Supplementary Note 1 to Supplementary Note 4, wherein the control unit determines whether the object is located within the movable range of the upper frame based on the detection result of the detection unit while the upper frame is being moved downward, and controls the drive unit to stop the movement of the upper frame if an abnormality determination is made that the object is located within the movable range of the upper frame. (Appendix 6) a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, 6. The elevator car entrance height adjustment device according to claim 5, wherein the control unit controls the notification unit to make the notification unit issue the car interior notification when the abnormality determination is made. (Appendix 7) 7. The elevator car entrance height adjustment device according to any one of Supplementary Note 1 to Supplementary Note 6, wherein the control unit includes: a memory unit that stores hall entrance information that associates each of the floors with a height of each of the hall entrances; and a processing unit that controls the drive unit based on the car's next stop floor information and the hall entrance information stored in the memory unit. [Explanation of symbols]

[0116] 6 Cage, 7 Platform entrance / exit, 61 Cage entrance / exit, 81 Upper frame, 82 Guide unit, 83 Drive unit, 86 Control unit, 87 Detection unit, 88 Notification unit, 100 Object, 861 Memory unit, 862 Processing unit.

Claims

1. an upper frame that forms an upper portion of a car entrance / exit provided in the car and is movable in a vertical direction relative to the car; a guide portion that guides the upper frame to move in the up and down direction relative to the car; a drive unit that generates a drive force that moves the upper frame in the up and down direction; a control unit that controls the drive unit; Equipped with Among the landing entrances provided on each of the plurality of floors at which the car can stop, the heights of the landing entrances provided on at least two floors are different from each other, The control unit controls the drive unit based on car next stop floor information that identifies the next stop floor of the car while the car entrance is closed, thereby moving the upper frame in the vertical direction relative to the car and making the height of the car entrance match the height of the landing entrance at the next stop floor.

2. a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, 2. The elevator car entrance height adjusting device according to claim 1, wherein the notification unit performs the car interior notification by mechanically interlocking with the operation of either the drive unit or the upper frame.

3. a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, 2. The elevator car entrance height adjusting device according to claim 1, wherein the control unit controls the notification unit to make the notification inside the car while moving the upper frame relative to the car.

4. a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, 2. The elevator car entrance height adjustment device according to claim 1, wherein the control unit controls the notification unit to make the notification unit issue the car in-car notification when the car entrance is opened after completing the movement of the upper frame relative to the car.

5. a detection unit that detects whether an object is present at the car entrance and, when the object is detected, measures the distance in the up-down direction from the upper frame to the object; 5. An elevator car entrance height adjustment device according to claim 1, wherein the control unit determines whether the object is located within the movable range of the upper frame based on the detection result of the detection unit while the upper frame is being moved downward, and controls the drive unit to stop the movement of the upper frame if an abnormality determination is made that the object is located within the movable range of the upper frame.

6. a notification unit that notifies the inside of the car of the movement of the upper frame as an in-car notification, 6. The elevator car entrance height adjusting device according to claim 5, wherein the control unit controls the notification unit to make the notification unit issue the car interior notification when the abnormality determination is made.

7. 5. The elevator car entrance height adjustment device according to claim 1, wherein the control unit includes: a memory unit that stores hall entrance information that associates each of the floors with a height of each of the hall entrances; and a processing unit that controls the drive unit based on the car's next stop floor information and the hall entrance information stored in the memory unit.

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