Elevator electrical panel and elevator

Abstract

To provide an elevator electrical panel and an elevator in which an open cover does not interfere with a car. [Solution] The elevator electrical panel has an opening that opens to the interior and comprises a panel body that is fixed inside the elevator shaft, and a shutter device attached to the panel body, and the shutter device comprises a cover that moves up and down to open and close the opening, a winding shaft that is positioned above and / or below the opening and winds up the cover, and a drive source that rotates the winding shaft.

Description

[Technical Field]

[0001] The present specification relates to an elevator electrical panel and an elevator. [Background technology]

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

[0003] In the elevator electrical panel described in Patent Document 1, when the cover is opened during maintenance, the area occupied in plan view becomes larger and the cover interferes with the car, which creates the problem that it is not possible to check the operation of the elevator with the cover open. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-103773 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, an object is to provide an elevator electrical panel and an elevator in which the cover does not interfere with the car when open. [Means for solving the problem]

[0006] [1] The elevator electrical panel is a panel body having an opening that opens to the inside and is fixed inside the elevator shaft; An elevator electrical panel comprising: a shutter device attached to the panel body; The shutter device includes a cover that moves up and down to open and close the opening, a winding shaft that is positioned above or below the opening and winds up the cover, and a drive source that rotates the winding shaft.

[0007] [2] In addition, in the elevator electrical panel described above in [1], The cover is divided into an upper first cover and a lower second cover, The winding shaft includes a first winding shaft disposed above the opening and winding up the first cover, and a second winding shaft disposed below the opening and winding up the second cover, The drive source includes a first drive source that rotates the first winding shaft and a second drive source that rotates the second winding shaft. The following configuration is also possible.

[0008] [3] In addition, the elevator an elevator car that moves up and down inside the hoistway; The elevator electrical panel described in [1] or [2] above, an opening / closing operation unit that is operated to input information for instructing opening or closing the cover; a cover control unit that controls the drive source based on information input to the opening / closing operation unit, the cover control unit invalidates information input to the opening / closing operation unit while the elevator car is automatically operating. The following configuration is also possible.

[0009] [4] In addition, the elevator an elevator car that moves up and down inside the hoistway; The elevator electrical panel described in [1] or [2] above, a cover control unit that controls the drive source, When the elevator car moves from inside to outside of a predetermined maintenance range in the vertical direction, which allows the elevator car to access the inside of the panel body during maintenance work, the cover control unit controls the drive source to perform a closing operation of the cover. The following configuration is also possible.

[0010] [5] In addition, the elevator an elevator car that moves up and down inside the hoistway; The elevator electrical panel described in [1] or [2] above, a cover control unit that controls the drive source, When the elevator car moves from the outside to the inside of a predetermined maintenance range in the vertical direction, which allows the elevator car to access the inside of the panel body during maintenance work, the cover control unit controls the drive source to perform an opening operation of the cover. The following configuration is also possible. [Brief explanation of the drawings]

[0011] [Figure 1] Schematic diagram of an elevator according to an embodiment. [Figure 2] FIG. 1 is a plan view of an elevator according to the embodiment; [Figure 3] 1A and 1B are overall views of the elevator electrical panel according to the embodiment, showing a state in which the shutter curtain is open (a: front view, b: side view). [Figure 4] 1A and 1B are overall views of the elevator electrical panel according to the embodiment, showing a state in which the shutter curtain is closed (a: front view, b: side view). [Figure 5] Block diagram of an elevator according to the embodiment. [Figure 6] Schematic diagram to explain the maintenance range [Figure 7] 10A and 10B are overall views of an elevator electrical panel according to another embodiment, showing a state in which the shutter curtain is partially open (a: front view, b: side view). [Figure 8]10A and 10B are overall views of an elevator electrical panel according to another embodiment, showing a state in which the shutter curtain is closed (a: front view, b: side view). DETAILED DESCRIPTION OF THE INVENTION

[0012] In each drawing, the dimensions of the components may be enlarged or reduced relative to the actual dimensions, for example, to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. Note that in each drawing, for example, to facilitate understanding, some of the components may be omitted.

[0013] Terms including ordinal numbers such as "first" and "second" are used to describe various components, but these terms are used only to distinguish one component from another, and the components are not particularly limited by these terms. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. Furthermore, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0014] An embodiment of an elevator and an elevator electrical panel will be described below with reference to Figures 1 to 6. Note that the following embodiment is provided as an example to help understand the configuration of the elevator and elevator electrical panel, and does not limit the configuration of the elevator and elevator electrical panel.

[0015] 1 and 2, an elevator 1 may include, for example, an elevator car (hereinafter also simply referred to as "car") 2 for people (passengers) to ride in, a car drive unit 3 that runs the car 2, a car rail 1a that guides the car 2, and a processing unit 1b that controls each part of the elevator 1. The processing unit 1b includes an elevator electrical panel (hereinafter also simply referred to as "electrical panel") 4 that is arranged inside the hoistway X1.

[0016] There is no particular limitation on the drive method of the car drive unit 3. 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, and 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 hoist and the elevator 1 may be a rope-type drive system. However, the present invention is not limited to such a configuration, and may be configured, for example, such that the car drive unit 3 is a hydraulic device and the elevator 1 is a hydraulic drive system, or such that the car drive unit 3 is a linear motor and the elevator 1 is a linear motor-type drive system.

[0018] The car driving unit 3 also includes 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 every time the car 2 rotates by a predetermined amount (for example, 1° to 5°). The processing unit 1b calculates the travel distance and travel speed of the car 2 based on the pulse signal from the detector 3c.

[0019] In addition, in this embodiment, both ends of the car rope 1d are fixed to the upper or lower part of the hoistway X1, and the car rope 1d is wound around the sheave 2a of the car 2 and the sheave 1f of the counterweight 1c, respectively, thereby connecting the car rope 1d to the car 2 and the counterweight 1c, respectively, but the present invention is not limited to this configuration. For example, a configuration may also be adopted in which a first end of the car rope 1d is connected to the car 2, and a second end of the car rope 1d is connected to the counterweight 1c.

[0020] Furthermore, the elevator 1 according to this embodiment is configured such that the hoisting machine, which is the car drive unit 3, is disposed inside the hoistway X1, but is not limited to such a configuration. For example, a machine room may be provided above the hoistway X1, and the elevator 1 may be configured such that the hoisting machine is disposed inside the machine room.

[0021] The elevator 1 includes a hall operating unit 1g disposed at each hall and a car operating unit 1h disposed inside the car 2. When a user operates each of the operating units 1g and 1h (for example, by pressing a push button), information is input to each of the operating units 1g and 1h.

[0022] For example, instruction information on the desired direction of transfer (upward or downward) is input to the hall operation unit 1g, and instruction information on the desired hall (for example, floor number) and door opening / closing is input to the car operation unit 1h. Each operation unit 1g, 1h is electrically connected to the processing unit 1b, and can send and receive electrical signals to and from the processing unit 1b.

[0023] The elevator 1 also includes a plurality of 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 disposed inside the car 2 and an external input device disposed outside the car 2. The external input device is disposed, for example, on the top of the car 2. The input devices 1i are electrically connected to the processing unit 1b and can transmit and receive electrical signals to and from the processing unit 1b.

[0024] 5, the input device 1i includes an operation selection unit 1j to which information for selecting automatic operation or manual operation of the car 2 is input. For example, the operation selection unit 1j is a selector switch.

[0025] The input device 1i also includes a car stop section 1k to which information for stopping the lifting and lowering of the car 2 is input, and a car lifting section 1m to which information for lifting and lowering the car 2 is input.

[0026] The car lifting unit 1m includes an upward direction unit 1n to which information for moving the car 2 upward is input, a downward direction unit 1o to which information for moving the car 2 downward is input, and a moving unit 1p to which information for moving the car 2 is input. For example, the upward direction unit 1n, the downward direction unit 1o, and the moving unit 1p are each an automatic reset type push button.

[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 a horizontal direction perpendicular to the first horizontal direction D1, and the third direction D3 is the up-down direction D3 which is perpendicular to each of the horizontal directions D1 and D2, and is the lifting direction in which the car 2 and the counterweight 1c rise and fall.

[0028] As shown in FIGS. 3 and 4, the elevator electrical panel 4 includes 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, include electrical components (not shown) inside the panel body 10. Although not particularly limited, the electrical components may, for example, be control components (e.g., inverters, CPUs, etc.) that control the running of the car 2, or may also, for example, be accessory components of the electrical panel 4 (e.g., fans for supplying and exhausting air to and from the panel body 10, lighting that illuminates the inside of the panel body 10, etc.).

[0030] As shown in FIG. 3, the panel body 10 has an opening 10a that opens to the interior in the first horizontal direction D1. The panel body 10 may be fixed to the hoistway X1 by being connected to the side wall X2 of the hoistway X1 or the rails 1a and 1e by, for example, a bracket (not shown). Furthermore, the panel body 10 may be disposed between the car 2 and the side wall X2 of the hoistway X1 in the first horizontal direction D1 when viewed in the up-down direction D3, as in this embodiment. As a result, when the car 2 is located at a predetermined position (for example, a landing on the top floor), the panel body 10 faces each other in the first horizontal direction D1.

[0031] The shutter device 20 is an electrically operated shutter device and is driven by electricity. As shown in Fig. 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 disposed on the upper part of the board 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 that rotates the winding shaft 24.

[0033] The shutter curtain 22 moves (raises and lowers) 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 rotatably connected to one another. The plurality of slats 22a extend in the second horizontal direction D2 and are arranged parallel to one another. Both ends of the plurality of slats 22a are movably connected 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 arranged on both sides of the opening 10a of the panel body 10. The guide rail 23 is located below the shutter case 21 and extends over the entire panel body 10 in the vertical direction D3. The pair of guide rails 23, 23 guide the shutter curtain 22 (plurality of slats 22a) in the vertical direction D3. When the shutter curtain 22 is closed, the shutter curtain 22 is unwound from the shutter case 21 and moves downward. When the shutter curtain 22 is opened, the shutter curtain 22 is rolled up toward the shutter case 21, moves upward, and is accommodated inside the shutter case 21.

[0035] The winding shaft 24 extends in the second horizontal direction D2 inside 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 extending in the second horizontal direction D2. As a result, the shutter curtain 22 is driven by the winding shaft 24 and is wound onto 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 unwind the shutter curtain 22. The shutter curtain 22 is unwound downward from the winding shaft 24 and moves downward from the shutter case 21. On the other hand, when opening the shutter curtain 22, the winding shaft 24 rotates in the other direction (clockwise in Figure 4(b)) to wind up the shutter curtain 22. The shutter curtain 22 moves upward toward the shutter case 21 and is wound up by the winding shaft 24.

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

[0038] The shutter device 20 may also include an opening / closing operation unit 26 (see FIGS. 1 and 5) that, when operated, inputs instruction information for opening or closing the shutter curtain 22. The opening / closing operation unit 26 is, for example, an automatic reset push button. When the opening / closing operation unit 26 is operated by an inspector, instruction information for opening or 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 send and receive electrical signals to and from the processing unit 1b.

[0039] The opening / closing operation unit 26 is disposed, for example, on the top of the car 2 as shown in Fig. 1. The opening / closing operation unit 26 may be fixed to the car 2 or may be a wired or wireless remote control. The opening / closing operation unit 26 may also be disposed on the electrical panel 4, or may be disposed at a landing on the floor nearest to the installation position of the electrical panel 4 (for example, a landing on the top floor or the bottom floor).

[0040] 5, the processing unit 1b includes a memory unit 41 that stores various information and a calculation unit 42 that calculates the various information. The processing unit 1b also includes a car control unit 43 that controls the electric motor 3b based on the detection of the detector 3c.

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

[0042] The calculation unit 42 determines the landing that is the destination of the car 2 based on the information input to the operation units 1g and 1h. Then, the calculation unit 42 calculates the number of pulse signals from the detector 3c that corresponds to the moving distance of the car 2, and determines the setting value of the moving speed of the car 2 corresponding to the number of pulse signals.

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

[0044] When inspecting the elevator 1, an inspector inputs information for selecting manual operation into the operation selection unit 1j of at least one input device 1i. Then, when information for selecting manual operation is input into the operation selection unit 1j of the input device 1i, the car control unit 43 controls the elevation of the car 2 in manual operation mode. In the manual operation mode, the car control unit 43 controls the elevation of the car 2 based on the information input by the inspector into the input device 1i.

[0045] 5, the processing unit 1b is provided with a cover control unit 44. The cover control unit 44 controls the rotation of the winding shaft 24 by controlling the drive source 25. The cover control unit 44 determines the rotation direction of the winding shaft 24 based on information input to the opening / closing operation unit 26, 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] In principle, the shutter curtain 22 is opened and closed only during maintenance work. Therefore, to prevent malfunction of the shutter curtain 22, the cover control unit 44 invalidates information input to the opening / closing operation unit 26 while the elevator car 2 is operating automatically (while the automatic operation mode is selected). Specifically, when open / close information is input to the opening / closing operation unit 26, the 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 cases in which the information input to the opening / closing operation unit 26 is not used to control the cover control unit 44, specifically, to control the opening and closing of the shutter curtain 22. For example, this includes not only a case in which the cover control unit 44 does not recognize information from the opening / closing operation unit 26, but also a case in which the cover control unit 44 recognizes information from the opening / closing operation unit 26 but does not use the information 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. The maintenance range 2r is a predetermined range in the vertical direction D3, as shown in FIG. 6 . When the car 2 is located inside the maintenance range 2r during maintenance work, an 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 an inspector on the car 2 manually moves from near the electrical panel 4 to the nearest floor after completing maintenance work, the shutter curtain 22 can be prevented from forgetting to close. Information about the maintenance range is stored in the memory unit 41. The movement distance of the car 2 calculated based on the pulse signal from the detector 3c can be used to determine whether the car 2 is located inside or outside the maintenance range.

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

[0050] As described above, the elevator electrical panel 4 is configured as follows: A panel body 10 has an opening 10a that opens to the inside and is fixed inside the elevator shaft X1; An elevator electrical panel (4) comprising: a shutter device (20) attached to the panel body (10); It is preferable that the shutter device 20 is configured to include a cover (in this embodiment, 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 that is positioned above and / or below the opening 10a (above in this embodiment) and winds up the cover 22, and a drive source 25 that rotates the winding shaft 24.

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

[0052] In addition, the elevator 1, as in this embodiment, an elevator car 2 that ascends and descends inside the elevator shaft X1; The elevator electrical panel 4; an opening / closing operation unit 26 that, when operated, inputs information instructing opening or closing of the cover (a shutter curtain in this embodiment); 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 invalidates information input to the opening / closing operation unit 26 while the elevator car 2 is automatically operating. This configuration is preferred.

[0053] According to this configuration, it is possible to prevent the cover 22 from malfunctioning when the elevator car 2 is operating automatically.

[0054] In addition, the elevator 1, as in this embodiment, an elevator car 2 that ascends and descends inside the elevator shaft X1; The elevator electrical panel 4; a cover control unit 44 for controlling the drive source 25; When the elevator car 2 moves from inside to outside of a predetermined maintenance range 2r in the vertical direction D3, which allows access to the inside of the panel body 10 from the elevator car 2 during maintenance work, the cover control unit 44 controls the drive source 25 to close the cover (in this embodiment, a shutter curtain) 22. This configuration is preferred.

[0055] This configuration makes it possible to prevent forgetting to close the cover 22 after the maintenance work is completed.

[0056] In addition, the elevator 1, as in this embodiment, an elevator car 2 that ascends and descends inside the elevator shaft X1; The elevator electrical panel 4; a cover control unit 44 for controlling the drive source 25; When the elevator car 2 moves from the outside to the inside of a predetermined maintenance range 2r in the vertical direction D3, which allows access to the inside of the panel body 10 from the elevator car 2 during maintenance work, the cover control unit 44 controls the drive source 25 to open the cover (in this embodiment, a shutter curtain) 22. This configuration is preferred.

[0057] According to this configuration, there is no need to input anything into the opening / closing operation unit 26 when starting maintenance work, which improves workability.

[0058] The elevator electrical panel 4 and the elevator 1 are not limited to the configurations of the above-described embodiments, nor are they limited to the above-described effects. Furthermore, the elevator electrical panel 4 and the elevator 1 can, of course, be modified in various ways without departing from the spirit of the present invention. For example, it is possible to arbitrarily select one or more of the configurations, methods, etc. of the various modified examples described below and adopt them in the configurations, methods, etc. of the above-described embodiments.

[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 that is disposed above the opening 10a and winds 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 FIG. 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 that is disposed below the opening 10a and winds 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., a wire, rope, etc.) 36 disposed above the opening 10a for suspending the shutter curtain 32, a take-up roller 37 for taking up the string-like member 36, and a motor 38 for rotating the take-up roller 37. When raising the shutter curtain 32, the motor 38 is driven to rotate the take-up roller 37, thereby taking up the string-like member 36. As a result, the shutter curtain 32 is pulled by the string-like member 36 and moves upward. At this time, the take-up 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 take-up shaft 34, thereby taking up the shutter curtain 32. At this time, it is preferable that the take-up roller 37 rotates slightly in the direction of taking up the string-like member 36 so that tension is applied to the shutter curtain 32.

[0060] (B-1) The elevator 1 according to the above embodiment includes 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 is operated to input information instructing the shutter curtain 22 to open or close, and a cover control unit 44 that controls the drive source 25 based on the information input to the opening / closing operation unit 26, and the cover control unit 44 is configured to invalidate 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 such that the power supply to the drive source 25 is shut off using the contacts of a contactor or relay while the elevator car 2 is operating automatically.

[0061] (B-2) Also, for example, while the elevator car 2 is in automatic operation, the open / close signal from the open / close operation unit 26 may be blocked using the contacts of a contactor or relay.

[0062] (B-3) Furthermore, when switching from the manual operation mode to the automatic operation mode, if the shutter curtain 22 is open, the cover control unit 44 may perform control to close the shutter curtain 22. With this configuration, even if the shutter curtain 22 is forgotten to be closed after maintenance work, the shutter curtain 22 can be automatically closed by returning to the 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 this configuration, the shutter curtain 22 can be opened only to the minimum extent necessary for maintenance work, improving work efficiency.

[0064] (D) The elevator electrical panel 4 according to the above embodiment is configured to include one shutter device 20. However, the elevator electrical panel 4 is not limited to this configuration. For example, as shown in FIG. 8, the elevator electrical panel 4 may be configured to include a first shutter device 20 and a second shutter device 30. That is, the covers 22, 32 may be divided into an upper first cover 22 and a lower second cover 32, the winding shafts 24, 34 may include a first winding shaft 24 disposed above the opening 10a and winding up the first cover 22, and a second winding shaft 34 disposed below the opening 10a and winding up the second cover 32, and the drive sources 25, 35 may 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 the shutter curtains 22, 32 from being left unclosed, the elevator 1 may be provided with a detection means (for example, a proximity sensor, a limit switch, etc.) that detects that 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 restore to automatic operation. Also, 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, 32, the elevator 1 is equipped with contact sensors at the tips of the shutter curtains 22, 32 (specifically, at the bottom end of the shutter curtain 22 and the top end of the shutter curtain 32), and when the contact sensors detect an object, the movement of the shutter curtains 22, 32 may be stopped or may even be reversed and moved.

[0067] (G-1) If the shutter curtain 22 pinches electric wires or maintenance items (such as tools) inside the electrical panel 4 during opening and closing operations, continuing the opening and closing operation may result in cutting the electric wires, damaging or dropping the items, or damaging the drive source 25. Therefore, the cover control unit 44 may stop the opening and closing operation and output an error signal when it detects a torque (or may detect a torque current value) equal to or greater than a threshold value (for example, 1 Nm).

[0068] (G-2) Also, an upper limit may be set in advance in the cover control unit 44 so that torque above a threshold (for example, 1 Nm) is not generated. In this case, pinching may be detected by an error signal indicating that a shutter curtain close signal has not been received even after a predetermined time (for example, 30 seconds) has elapsed. [Explanation of symbols]

[0069] 1... elevator, 1a... car rail, 1b... processing section, 1c... counterweight, 1d... car rope, 1e... weight rail, 1f... sheave, 1g... landing operation section, 1h... car operation section, 1i... input device, 1j... operation selection section, 1k... car stop section, 1m... car lifting section, 1n... upward section, 1o... downward section, 1p... moving section, 2... elevator car, 2a... sheave, 2r... maintenance range, 3... car drive section, 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... memory unit, 42... calculation unit, 43... car control unit, 44... cover control unit, D1... first horizontal direction, D2... second horizontal direction, D3... up / down direction, X1... elevator shaft, X2... side wall

Claims

1. A panel body having an opening that opens to the inside and is fixed inside the elevator shaft; An elevator electrical panel comprising: a shutter device attached to the panel body; the shutter device includes a cover that moves up and down to open and close the opening, a take-up shaft that is disposed above or below the opening and takes up the cover, and a drive source that rotates the take-up shaft, The cover is divided into an upper first cover and a lower second cover, the winding shaft is a first winding shaft disposed above the opening and winding up the first cover; a second winding shaft disposed below the opening and winding up the second cover, The drive source includes a first drive source that rotates the first winding shaft and a second drive source that rotates the second winding shaft.

2. An elevator electrical panel comprising: a panel body having an opening that opens 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 that is positioned above and / or below the opening and winds up the cover, and a drive source that rotates the winding shaft; an elevator car that moves up and down inside the hoistway; an opening / closing operation unit that is operated to input information for instructing opening or closing the cover; a cover control unit that controls the drive source based on information input to the opening / closing operation unit; Equipped with The cover control unit invalidates information input to the opening / closing operation unit while the elevator car is automatically operating.

3. An elevator electrical panel comprising: a panel body having an opening that opens 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 that is positioned above and / or below the opening and winds up the cover, and a drive source that rotates the winding shaft; an elevator car that moves up and down inside the hoistway; a cover control unit that controls the drive source, An elevator in which, when the elevator car moves from inside to outside a specified maintenance range in the vertical direction that allows access to the inside of the panel body from the elevator car during maintenance work, the cover control unit controls the drive source to close the cover.

4. An elevator electrical panel comprising: a panel body having an opening that opens 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 that is positioned above and / or below the opening and winds up the cover, and a drive source that rotates the winding shaft; an elevator car that moves up and down inside the hoistway; a cover control unit that controls the drive source, An elevator in which, when the elevator car moves from the outside to the inside of a specified maintenance range in the vertical direction that allows access to the inside of the panel body from the elevator car during maintenance work, the cover control unit controls the drive source to open the cover.

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