Elevator electrical panel and elevator

Abstract

The present invention provides an elevator electrical panel and elevator in which the open cover does not interfere with the elevator car. [Solution] The elevator electrical panel comprises a panel body having an opening to the interior and fixed inside the elevator shaft, and a shutter device attached to the panel body, wherein the shutter device comprises a cover that moves up and down to open and close the opening, a winding shaft positioned above and below the opening to wind up the cover, and a drive source that rotates the winding shaft.

Description

Technical Field

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[0001] This specification relates to an elevator switchboard and an elevator.

Background Art

[0002] Conventionally, for example, an elevator switchboard includes a board body fixed inside a hoistway and a hinged cover attached to the board body (for example, Patent Document 1). The board body has an opening that opens to the inside, and the cover rotates between a closed position that covers the opening and an open position that opens the opening.

[0003] In the elevator switchboard according to Patent Document 1, when the cover is opened during maintenance, the occupied area in plan view becomes large, and since the cover interferes with the car, there is a problem that the operation of the elevator cannot be confirmed in the state where the cover is opened.

Prior Art Documents

Patent Documents

[0004] ​​​​​​​​​​​​​​​​​​​​​​​​​​​​The shutter device comprises a cover that moves up and down in the vertical direction to open and close the opening, a winding shaft positioned above and below the opening to wind up the cover, and a drive source that rotates the winding shaft.

[0007] [2] Furthermore, in the elevator electrical panel described in [1] above, The aforementioned cover is divided into an upper first cover and a lower second cover. The winding shaft comprises a first winding shaft positioned above the opening for winding the first cover, and a second winding shaft positioned below the opening for winding the second cover. The drive source comprises a first drive source for rotating the first winding shaft and a second drive source for rotating the second winding shaft. This configuration is also acceptable.

[0008] [3] Also, the elevator, An elevator car that moves up and down inside the aforementioned hoistway, The elevator electrical panel described in [1] or [2] above, An opening / closing operation unit, which, when operated, receives information indicating an instruction to open or close the cover, The system includes a cover control unit that controls the drive source based on information input to the opening / closing operation unit, The cover control unit disables the information input to the opening / closing operation unit while the elevator car is operating automatically. This configuration is also acceptable.

[0009] [4] Also, the elevator, An elevator car that moves up and down inside the aforementioned hoistway, The elevator electrical panel described in [1] or [2] above, The system includes a cover control unit that controls the drive source, When the elevator car moves from the inside to the outside within a predetermined maintenance range in the vertical direction where it is accessible from the elevator car to the inside of the panel body during maintenance work, the cover control unit controls the drive source to perform the closing operation of the cover. Such a configuration may be adopted.

[0010] [5] In addition, the elevator includes an elevator car that moves up and down inside the hoistway, the elevator electric panel of the above [1] or [2], and a cover control unit that controls the drive source. When the elevator car moves from the outside to the inside within a predetermined maintenance range in the vertical direction where it is accessible from the elevator car to the inside of the panel body during maintenance work, the cover control unit controls the drive source to perform the opening operation of the cover. Such a configuration may be adopted.

Brief Description of Drawings

[0011] [Figure 1] Schematic diagram of an elevator according to an embodiment [Figure 2] Plan view of the elevator according to the embodiment [Figure 3] Overall view of the elevator electric panel according to the embodiment, showing the state where the shutter curtain is open (a: front view, b: side view) [Figure 4] Overall view of the elevator electric panel according to the embodiment, showing the state where the shutter curtain is closed (a: front view, b: side view) [Figure 5] Block diagram of the elevator according to the embodiment [Figure 6] Schematic diagram for explaining the maintenance range [Figure 7] <000009'2>Overall view of the elevator electric panel according to another embodiment, showing the state where the shutter curtain is partially open (a: front view, b: side view) [Figure 8] Overall view of an elevator switchboard according to another embodiment, showing the state where the shutter curtain is closed (a: front view, b: side view)

Mode for Carrying Out the Invention

[0012] In each drawing, the dimensions of the components may be enlarged or reduced with respect to the actual dimensions for ease of understanding, for example, and the dimensional ratios between the drawings may not match. In each drawing, a part of the components may be omitted for ease of understanding, for example.

[0013] Terms including ordinal numbers such as first, second, etc. are used to describe various components, but this term is used only for the purpose of distinguishing one component from another, and the components are not particularly limited by this term. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. Also, the ordinal numbers used in the following specification and drawings may be different from the ordinal numbers described in the claims.

[0014] Hereinafter, an embodiment of an elevator and an elevator switchboard will be described with reference to FIGS. 1 to 6. The following embodiments are exemplified to assist in understanding the configurations of the elevator and the elevator switchboard, and do not limit the configurations of the elevator and the elevator switchboard.

[0015] the elevator As shown in FIGS. 1 and 2, the elevator 1 may include, for example, an elevator car (hereinafter also simply referred to as "car") 2 for people (passengers) to ride, a car drive unit 3 for driving the car 2, a car rail 1a for guiding the car 2, and a processing unit 1b for controlling each part of the elevator 1. The processing unit 1b includes an elevator switchboard (hereinafter also simply referred to as "switchboard") 4 disposed inside the hoistway X1.

[0016] The drive method of the car drive unit 3 is not particularly limited. For example, as in this embodiment, the elevator 1 may be configured to include a counterweight 1c, a car rope 1d connected to the car 2 and the counterweight 1c, and a counterweight rail 1e that guides the counterweight 1c, while the car drive unit 3 may be configured to include a sheave 3a around which the car rope 1d is wound, and an electric motor 3b that rotates the sheave 3a.

[0017] That is, the car drive unit 3 may be a hoisting machine, and the elevator 1 may be a rope-type drive system. However, the configuration is not limited to this, and for example, the car drive unit 3 may be a hydraulic device, and the elevator 1 may be a hydraulic drive system, or for example, the car drive unit 3 may be a linear motor, and the elevator 1 may be a linear motor drive system.

[0018] Furthermore, the cage drive unit 3 is equipped with a detector 3c that detects the rotation of the sheave 3a. The detector 3c is, for example, an encoder. The detector 3c outputs a pulse signal to the processing unit 1b at predetermined rotation intervals (for example, 1° to 5°). The processing unit 1b calculates the distance traveled and the speed traveled of the cage 2 based on the pulse signal from the detector 3c.

[0019] Furthermore, in this embodiment, both ends of the cage rope 1d are fixed to the upper or lower part of the hoistway X1, and the cage rope 1d is wrapped around the sheave 2a of the cage 2 and the sheave 1f of the counterweight 1c, respectively, thereby connecting the cage rope 1d to the cage 2 and the counterweight 1c, respectively. However, the embodiment is not limited to this configuration. For example, the first end of the cage rope 1d may be connected to the cage 2, and the second end of the cage rope 1d may be connected to the counterweight 1c.

[0020] Furthermore, while the elevator 1 according to this embodiment has a configuration in which the hoisting machine, which is the car drive unit 3, is located inside the hoistway X1, it is not limited to this configuration. For example, a machine room may be provided above the hoistway X1, and the elevator 1 may have a configuration in which the hoisting machine is located inside the machine room.

[0021] Elevator 1 is equipped with landing control units 1g located at each landing and car control unit 1h located inside the car 2. When each control unit 1g, 1h is operated by a user (for example, when a push button is pressed), information is input to each control unit 1g, 1h.

[0022] For example, the landing control unit 1g receives instruction information indicating the desired direction of transport (up or down), and the car control unit 1h receives instruction information indicating the desired landing (e.g., floor) and whether to open or close the doors. Each control unit 1g and 1h is electrically connected to the processing unit 1b, and can transmit and receive electrical signals between them.

[0023] Furthermore, elevator 1 is equipped with multiple input devices 1i into which an inspector inputs information for manually raising or lowering the car 2. The input devices 1i may include an internal input device located inside the car 2 and an external input device located outside the car 2. The external input device may be located, for example, at the top of the car 2. The input devices 1i are electrically connected to the processing unit 1b and can send and receive electrical signals with the processing unit 1b.

[0024] As shown in Figure 5, the input device 1i includes a driving selection unit 1j into which information is input to select whether to operate the elevator car 2 automatically or manually. For example, the driving selection unit 1j is a selector switch.

[0025] Furthermore, the input device 1i includes a car stop unit 1k into which information to stop the raising and lowering of the car 2 is input, and a car lifting unit 1m into which information to raise and lower the car 2 is input.

[0026] The elevator car lifting unit 1m includes an upward unit 1n into which information about the elevator car 2 moving upward is input, a downward unit 1o into which information about the elevator car 2 moving downward is input, and a movement unit 1p into which information about the movement of the elevator car 2 is input. For example, the upward unit 1n, the downward unit 1o, and the movement unit 1p are each automatic reset type push buttons.

[0027] In each figure, the first direction D1 is the first horizontal direction D1, the second direction D2 is the second horizontal direction D2 which is perpendicular to the first horizontal direction D1, and the third direction D3 is the vertical direction D3 which is perpendicular to each of the horizontal directions D1 and D2, and is the vertical direction in which the cage 2 and counterweight 1c move up and down.

[0028] As shown in Figures 3 and 4, the elevator electrical panel 4 comprises a panel body 10 fixed inside the hoistway X1 and a shutter device 20 attached to the panel body 10.

[0029] The electrical panel 4 may, for example, have electrical components (not shown) inside the panel body 10. While not particularly limited, the electrical components may be, for example, control components that control the movement of the cage 2 (e.g., inverter, CPU, etc.), or, for example, accessory components of the electrical panel 4 (e.g., a fan for supplying and exhausting air to the panel body 10, lighting for illuminating the inside of the panel body 10, etc.).

[0030] As shown in Figure 3, the control panel 10 has an opening 10a that opens to the interior in the first lateral direction D1. The control panel 10 may be fixed to the elevator shaft X1 by being connected to the side wall X2 of the elevator shaft X1 or the rails 1a, 1e, for example, by a bracket (not shown). Alternatively, the control panel 10 may be positioned between the elevator car 2 and the side wall X2 of the elevator shaft X1 in the first lateral direction D1 when viewed in the vertical direction D3, as in this embodiment. This ensures that when the elevator car 2 is in a predetermined position (for example, the landing on the top floor), the control panel 10 faces it in the first lateral direction D1.

[0031] The shutter device 20 is an electrically operated shutter device and is driven by electricity. As shown in Figure 4, the shutter device 20 may include a shutter case 21, a shutter curtain 22 that moves up and down in the vertical direction D3, and a pair of guide rails 23, 23.

[0032] The shutter case 21 is located on the upper part of the control panel body 10. The shutter case 21 may house a winding shaft 24 (described later), a shutter curtain 22 wound around the winding shaft 24, and a drive source 25 for rotating the winding shaft 24.

[0033] The shutter curtain 22 moves (rises and falls) in the vertical direction D3 to open and close the opening 10a of the panel body 10. The shutter curtain 22 has a plurality of slats 22a that are rotatably connected to each other. Each of the plurality of slats 22a extends in the second horizontal direction D2 and is arranged parallel to each other. The plurality of slats 22a are movably connected at both ends to a pair of guide rails 23, 23 and move in the vertical direction D3 between the pair of guide rails 23, 23.

[0034] A pair of guide rails 23, 23 are positioned on both sides of the opening 10a of the panel body 10. The guide rails 23 are located below the shutter case 21 and extend over the entire vertical direction D3 of the panel body 10. The pair of guide rails 23, 23 guide the shutter curtain 22 (multiple slats 22a) in the vertical direction D3. When the shutter curtain 22 is closed, it is extended from the shutter case 21 and moves downward. When the shutter curtain 22 is opened, it is rolled up towards the shutter case 21 and moves upward, and is housed inside the shutter case 21.

[0035] The winding shaft 24 extends in a second lateral direction D2 within the shutter case 21. The winding shaft 24 is connected to the uppermost slat 22a of the shutter curtain 22. The winding shaft 24 rotates in both directions around a rotation axis that extends in the second lateral direction D2. As a result, the shutter curtain 22 is driven by the winding shaft 24 to be wound onto the winding shaft 24 and unwound from the winding shaft 24.

[0036] When closing the shutter curtain 22, the winding shaft 24 rotates in one direction (counterclockwise in Figure 4(b)) to extend the shutter curtain 22. The shutter curtain 22 extends downward from the winding shaft 24 and moves downward from the shutter case 21. Conversely, when opening the shutter curtain 22, the winding shaft 24 rotates in the other direction (clockwise in Figure 4(b)) to rewind the shutter curtain 22. The shutter curtain 22 moves upward toward the shutter case 21 and is wound onto the winding shaft 24.

[0037] The drive source 25 may be, for example, an electric motor. The drive source 25 is connected to one end of the winding shaft 24 and can rotate the winding shaft 24, causing it to rotate in both directions.

[0038] Furthermore, the shutter device 20 may include an opening / closing operation unit 26 (see Figures 1 and 5) to which information is input for opening and closing the shutter curtain 22 when operated. The opening / closing operation unit 26 is, for example, an automatic reset type push button. When the opening / closing operation unit 26 is operated by an inspector, information for opening and closing the shutter curtain 22 is input to the opening / closing operation unit 26. The opening / closing operation unit 26 is electrically connected to the processing unit 1b and can transmit and receive electrical signals between it and the processing unit 1b.

[0039] The opening / closing operation unit 26 is located on the top of the elevator car 2, for example, as shown in Figure 1. The opening / closing operation unit 26 may be fixed to the elevator car 2, or it may be a wired or wireless remote control. The opening / closing operation unit 26 may be located on the electrical panel 4, or on the landing of the floor closest to the location of the electrical panel 4 (for example, the landing of the top floor or the bottom floor).

[0040] As shown in Figure 5, the processing unit 1b includes a storage unit 41 for storing various information and a calculation unit 42 for performing calculations on various information. The processing unit 1b also includes a cage control unit 43 that controls the electric motor 3b based on the detection by the detector 3c.

[0041] The memory unit 41 stores the set value for the movement speed of the elevator car 2. The memory unit 41 also stores information regarding the distance between landings (for example, the number of pulse signals from the detector 3c corresponding to the distance between landings). The memory unit 41 then counts the pulse signals output from the detector 3c and stores them as the number of pulse signals.

[0042] The calculation unit 42 determines the landing that will be the destination of the elevator car 2 based on the information input to the operation units 1g and 1h. The calculation unit 42 then calculates the number of pulse signals from the detector 3c corresponding to the distance traveled by the elevator car 2, and determines the set value for the elevator car 2's speed in accordance with the number of pulse signals.

[0043] The car control unit 43 controls the motor 3b based on the detection by the detector 3c. Specifically, the car control unit 43 calculates the travel distance and travel speed of the car 2 based on the pulse signal from the detector 3c, and controls the power supplied to the motor 3b so that the travel speed of the car 2 reaches a set value.

[0044] When inspecting elevator 1, the inspector inputs information to select manual operation into the operation selection unit 1j of at least one input device 1i. Upon inputting this information into the operation selection unit 1j of input device 1i, the car control unit 43 controls the raising and lowering of car 2 in manual operation mode. In manual operation mode, the car control unit 43 controls the raising and lowering of car 2 based on the information input by the inspector into input device 1i.

[0045] Furthermore, the processing unit 1b includes a cover control unit 44, as shown in Figure 5. The cover control unit 44 controls the rotation of the winding shaft 24 by controlling the drive source 25. Based on the information input to the opening / closing operation unit 26, the cover control unit 44 determines the rotation direction of the winding shaft 24 and controls the opening and closing of the shutter curtain 22 by unwinding the shutter curtain 22 from the winding shaft 24 or winding the shutter curtain 22 onto the winding shaft 24.

[0046] The shutter curtain 22 is, in principle, only opened and closed during maintenance work. Therefore, to prevent malfunction of the shutter curtain 22, the cover control unit 44 invalidates the information input to the opening / closing operation unit 26 while the elevator car 2 is operating automatically (while automatic operation mode is selected). Specifically, if opening / closing information is input to the opening / closing operation unit 26, that information is invalidated by the cover control unit 44.

[0047] In this specification, "the cover control unit 44 invalidates the information (the information is invalidated by the cover control unit 44)" includes all forms in which the information input to the opening / closing operation unit 26 is not used for the control of the cover control unit 44, specifically for the control of opening and closing the shutter curtain 22. For example, this includes not only the form in which the cover control unit 44 does not recognize the information from the opening / closing operation unit 26, but also the form in which the cover control unit 44 recognizes the information from the opening / closing operation unit 26 but does not use it for control.

[0048] Furthermore, the cover control unit 44 may control the drive source 25 to close the shutter curtain 22 when the car 2 moves from inside to outside the maintenance range 2r. As shown in Figure 6, the maintenance range 2r is a predetermined range in the vertical direction D3, and when the car 2 is located inside the maintenance range 2r during maintenance work, the inspector can access the inside of the panel body 10 from above the car 2. By closing the shutter curtain 22 in conjunction with the movement of the car 2, for example, when the inspector on the car 2 moves from near the electrical panel 4 to the nearest floor by manual operation after the maintenance work is completed, it is possible to prevent forgetting to close the shutter curtain 22. The maintenance range information is stored in the storage unit 41. Based on the pulse signal from the detector 3c, it is possible to determine whether the position of the car 2 is inside or outside the maintenance range based on the distance the car 2 has moved.

[0049] Furthermore, the cover control unit 44 may also control the drive source 25 to open the shutter curtain 22 when the elevator car 2 moves from outside to inside the maintenance range 2r during maintenance work. By opening the shutter curtain 22 in conjunction with the movement of the elevator car 2, for example, when an inspector on the elevator car 2 moves manually from the nearest floor to the electrical panel 4 towards the electrical panel 4 at the start of maintenance work, there is no need to input to the opening / closing operation unit 26, thus improving work efficiency.

[0050] Based on the above, the elevator electrical panel 4 is as in this embodiment. A panel body 10 having an opening 10a that opens the interior and is fixed inside the elevator shaft X1, An elevator electrical panel 4 comprising a shutter device 20 attached to the panel body 10, The shutter device 20 preferably comprises a cover (a shutter curtain in this embodiment) 22 that moves up and down in the vertical direction D3 to open and close the opening 10a, a winding shaft 24 positioned above and below the opening 10a (above in this embodiment) to wind up the cover 22, and a drive source 25 that rotates the winding shaft 24.

[0051] With this configuration, the cover 22 moves up and down in the vertical direction D3 to open and close the opening 10a, so the open cover 22 does not interfere with the moving elevator car 2.

[0052] Furthermore, elevator 1, as in this embodiment, An elevator car 2 moves up and down inside the aforementioned hoistway X1, The aforementioned elevator electrical panel 4, An opening / closing operation unit 26 receives information instructing it to open or close the cover (in this embodiment, a shutter curtain) 22 when operated, The system includes a cover control unit 44 that controls the drive source 25 based on information input to the opening / closing operation unit 26, The cover control unit 44 disables the information input to the opening / closing operation unit 26 while the elevator car 2 is operating automatically. This configuration is preferable.

[0053] With this configuration, malfunction of the cover 22 can be prevented when the elevator car 2 is operating automatically.

[0054] Furthermore, elevator 1, as in this embodiment, An elevator car 2 moves up and down inside the aforementioned hoistway X1, The aforementioned elevator electrical panel 4, The system includes a cover control unit 44 that controls the drive source 25, When the elevator car 2 moves from the inside to the outside of a predetermined maintenance range 2r in the vertical direction D3, which allows access from the elevator car 2 to the inside of the control panel body 10 during maintenance work, the cover control unit 44 controls the drive source 25 to close the cover (shutter curtain in this embodiment) 22. This configuration is preferable.

[0055] This configuration prevents forgetting to close the cover 22 after maintenance work is completed.

[0056] Furthermore, elevator 1, as in this embodiment, An elevator car 2 moves up and down inside the aforementioned hoistway X1, The aforementioned elevator electrical panel 4, The system includes a cover control unit 44 that controls the drive source 25, When the elevator car 2 moves from outside to inside a predetermined maintenance range 2r in the vertical direction D3, which allows access from the elevator car 2 to the inside of the control panel body 10 during maintenance work, the cover control unit 44 controls the drive source 25 to open the cover (shutter curtain in this embodiment) 22. This configuration is preferable.

[0057] With this configuration, there is no need to input information into the opening / closing operation unit 26 when starting maintenance work, thus improving work efficiency.

[0058] It should be noted that the elevator electrical panel 4 and elevator 1 are not limited to the configuration of the embodiment described above, nor are they limited to the effects described above. Furthermore, it goes without saying that the elevator electrical panel 4 and elevator 1 can be modified in various ways without departing from the spirit of the present invention. For example, one or more of the configurations and methods described below may be arbitrarily selected and adopted in the configurations and methods of the embodiment described above.

[0059] (A) In the elevator electrical panel 4 according to the above embodiment, the shutter device 20 is configured to include a shutter curtain 22 that moves up and down in the vertical direction D3 to open and close the opening 10a, a winding shaft 24 positioned above the opening 10a to wind up the shutter curtain 22, and a drive source 25 that rotates the winding shaft 24. However, the elevator electrical panel 4 is not limited to this configuration. For example, as shown in Figure 7, the shutter device 30 may be configured to include a shutter curtain 32 that moves up and down in the vertical direction D3 to open and close the opening 10a, a winding shaft 34 positioned below the opening 10a to wind up the shutter curtain 32, and a drive source 35 that rotates the winding shaft 34. The shutter device 30 may also include a shutter case 31 and a pair of guide rails 33, 33. Furthermore, the shutter device 30 may include a string-like member (e.g., wire, rope, etc.) 36 positioned above the opening 10a to suspend the shutter curtain 32, a winding roller 37 for winding up the string-like member 36, and a motor 38 for rotating the winding roller 37. When raising the shutter curtain 32, the motor 38 is driven to rotate the winding roller 37, thereby winding up the string-like member 36. As a result, the shutter curtain 32 moves upward, pulled by the string-like member 36. At this time, the winding shaft 34 is allowed to rotate freely. On the other hand, when lowering the shutter curtain 32, the drive source 35 is driven to rotate the winding shaft 34, thereby winding up the shutter curtain 32. At this time, it is preferable that the winding roller 37 rotates slightly in the direction of winding up the string-like member 36 so that tension is applied to the shutter curtain 32.

[0060] (B-1) In the elevator 1 according to the above embodiment, the elevator 1 comprises an elevator car 2 that moves up and down inside the hoistway X1, an elevator electrical panel 4, an opening / closing operation unit 26 that receives information instructing the opening and closing of the shutter curtain 22 when operated, and a cover control unit 44 that controls the drive source 25 based on the information input to the opening / closing operation unit 26, wherein the cover control unit 44 disables the information input to the opening / closing operation unit 26 while the elevator car 2 is operating automatically. However, the elevator 1 is not limited to this configuration. For example, the elevator 1 may be configured to shut off the power supply to the drive source 25 using contactors or relay contacts while the elevator car 2 is operating automatically.

[0061] (B-2) Alternatively, for example, while the elevator car 2 is operating automatically, the opening and closing signals from the opening and closing operation unit 26 may be blocked using contactors or relay contacts.

[0062] (B-3) In addition, the cover control unit 44 may control the shutter curtain 22 to close if it is open when the system is switched from manual operation mode to automatic operation mode. With this configuration, even if the shutter curtain 22 is not closed after maintenance work, it is possible to close the shutter curtain 22 automatically by switching back to automatic operation mode.

[0063] (C) In the elevator electrical panel 4 according to the above embodiment, the shutter curtain 22 is configured to be movable between a fully open position that completely exposes the opening 10a of the panel body 10 and a fully closed position that completely covers the opening 10a of the panel body 10. However, the elevator electrical panel 4 is not limited to this configuration. For example, the shutter curtain 22 may be configured to be movable to a maintenance position that partially exposes the opening 10a of the panel body 10, in addition to the fully open and fully closed positions. With such a configuration, the shutter curtain 22 can be opened only to the minimum extent necessary for maintenance work, thus improving work efficiency.

[0064] (D) In ​​the elevator electrical panel 4 according to the above embodiment, the configuration includes one shutter device 20. However, the elevator electrical panel 4 is not limited to this configuration. For example, the elevator electrical panel 4 may be configured to include a first shutter device 20 and a second shutter device 30, as shown in Figure 8. That is, the covers 22 and 32 are divided into an upper first cover 22 and a lower second cover 32, the winding shafts 24 and 34 include a first winding shaft 24 positioned above the opening 10a to wind up the first cover 22 and a second winding shaft 34 positioned below the opening 10a to wind up the second cover 32, and the drive sources 25 and 35 include a first drive source 25 that rotates the first winding shaft 24 and a second drive source 35 that rotates the second winding shaft 34.

[0065] (E) To prevent forgetting to close the shutter curtains 22, 32, the elevator 1 may be equipped with detection means (e.g., proximity sensor, limit switch, etc.) to detect when the shutter curtains 22, 32 are fully closed, and if the detection means does not detect that the shutter curtains 22, 32 are fully closed, the elevator car 2 may not be able to return to automatic operation. Alternatively, if the detection means does not detect that the shutter curtains 22, 32 are fully closed, the elevator 1 may be configured to sound an alarm.

[0066] (F) In order to prevent pinching by the shutter curtains 22 and 32, the elevator 1 is equipped with contact sensors at the ends of the shutter curtains 22 and 32 (specifically, the lower end of shutter curtain 22 and the upper end of shutter curtain 32), and when the contact sensors detect an object, the movement of the shutter curtains 22 and 32 may be stopped, or they may be reversed and moved.

[0067] (G-1) If the shutter curtain 22 becomes caught in the electrical panel 4 with electrical wires or maintenance items (such as tools) while opening or closing, continuing the opening or closing operation may cause the electrical wires to be cut, the items to be damaged or fall, or the drive source 25 to be damaged. Therefore, the cover control unit 44 may stop the opening or closing operation and output an error signal if it detects a torque above a threshold (for example, 1 Nm) (or by detecting the torque current value).

[0068] (G-2) Alternatively, the cover control unit 44 may set an upper limit in advance to prevent the generation of torque exceeding a threshold (e.g., 1 Nm). In this case, pinching may be detected by an error signal indicating that the shutter curtain closing signal was not received after a predetermined time (e.g., 30 seconds) has elapsed. [Explanation of Symbols]

[0069] 1...Elevator, 1a...Cage rail, 1b...Processing unit, 1c...Counterweight, 1d...Cage rope, 1e...Weight rail, 1f...Sheave, 1g...Landing operation unit, 1h...Cage operation unit, 1i...Input device, 1j...Operation selection unit, 1k...Cage stopping unit, 1m...Cage lifting / lowering unit, 1n...Upward direction unit, 1o...Downward direction unit, 1p...Movement unit, 2...Elevator car, 2a...Sheave, 2r...Maintenance range, 3...Cage drive unit, 3a...Sheave, 3b...Electric motor, 3c...Detector, 4...Elevator electrical panel, 10...Panel body, 10a...Opening, 20...Shutter device , 21...Shutter case, 22...Shutter curtain, 22a...Slat, 23...Guide rail, 24...Winding shaft, 25...Drive source, 26...Opening / closing operation unit, 30...Shutter device, 31...Shutter case, 32...Shutter curtain, 33...Guide rail, 34...Winding shaft, 35...Drive source, 36...String-like member, 37...Winding roller, 38...Motor, 41...Storage unit, 42...Calculation unit, 43...Cage control unit, 44...Cover control unit, D1...First lateral direction, D2...Second lateral direction, D3...Vertical direction, X1...Elevator shaft, X2...Side wall

Claims

1. A panel body having an opening that exposes the interior and fixed inside the elevator shaft, An elevator electrical panel comprising a shutter device attached to the panel body, The shutter device comprises an elevator electrical panel having a cover that moves up and down in the vertical direction to open and close the opening, a winding shaft positioned above and below the opening to wind up the cover, and a drive source that rotates the winding shaft.

2. The cover is divided into an upper first cover and a lower second cover. The winding shaft comprises a first winding shaft positioned above the opening for winding the first cover, and a second winding shaft positioned below the opening for winding the second cover. The elevator electrical panel according to claim 1, wherein the drive source comprises a first drive source for rotating the first winding shaft and a second drive source for rotating the second winding shaft.

3. An elevator car that moves up and down inside the aforementioned hoistway, The elevator electrical panel according to claim 1 or 2, An opening / closing operation unit, which, when operated, receives information indicating an instruction to open or close the cover, The system includes a cover control unit that controls the drive source based on information input to the opening / closing operation unit, The cover control unit disables the information input to the opening / closing operation unit while the elevator car is operating automatically.

4. An elevator car that moves up and down inside the aforementioned hoistway, The elevator electrical panel according to claim 1 or 2, The system includes a cover control unit that controls the drive source, An elevator in which, when the elevator car moves from the inside to the outside of a predetermined vertical maintenance range that allows access from the elevator car to the inside of the control panel body during maintenance work, the cover control unit controls the drive source to close the cover.

5. An elevator car that moves up and down inside the aforementioned hoistway, The elevator electrical panel according to claim 1 or 2, The system includes a cover control unit that controls the drive source, An elevator in which, when the elevator car moves from outside to inside a predetermined vertical maintenance range that allows access from the elevator car to the inside of the control panel body during maintenance work, the cover control unit controls the drive source to open the cover.

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