Elevator device and maintenance method thereof

Abstract

The invention provides an elevator device and a maintenance method thereof, and aims to perform maintenance operation of a control panel and a speed regulator from the upper surface of a lift car without changing the height position of the lift car. This elevator device is provided with a car (104), and a control panel (101) and a governor (111) which are disposed in a hoistway (HW), and the elevator device (100) performs maintenance operation of the control panel (101) and the governor (111) on a car upper surface (104c) of the car (104). A maintenance operation part (101f) of the control panel (101) and a maintenance operation part (111d) of the speed regulator (111) are configured at a height position at which maintenance operation can be performed without changing the height direction position of the lift car (104).

Description

Technical Field

[0001] The invention relates to an elevator device and a maintenance method thereof. Background Art

[0002] Patent Document 1 describes a work procedure for a machine room-less elevator device in which an operator climbs onto the ceiling of a car during maintenance and inspection and inspects a control panel from inside a handrail (paragraphs 0052 to 0057).

[0003] Prior Art Literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-52648 Summary of the invention

[0006] -Problems to be solved by the invention-

[0007] As the main equipment of the elevator device, in addition to the control panel, there is also a speed governor. During maintenance and inspection, it is necessary to perform inspection work on the control panel and the speed governor. In the case where the operator climbs onto the ceiling of the car (hereinafter referred to as the upper surface of the car) to perform inspection work, there is a limitation on the height range in which the inspection work can be performed without using a platform or the like. When the control panel and the speed governor are configured separately in the height direction, it is necessary to change the height position of the upper surface of the car that serves as a scaffold for the operator according to the height position of the control panel and the speed governor. In addition, during the inspection work, it is necessary to take stopping measures so that the car does not move. Every time the height position of the upper surface of the car is changed, the stopping measures and their release must be repeated, which significantly reduces the efficiency of the inspection work.

[0008] An object of the present invention is to enable inspection work of a control panel and a speed governor to be performed from the upper surface of a car without changing the height position of the car.

[0009] -Methods for solving the problem-

[0010] In order to solve the above-mentioned problems, the elevator device of the present invention comprises a car, and a control panel and a speed governor arranged in a lifting passage, in which maintenance work of the control panel and the speed governor is performed on the upper surface of the car, the maintenance work part of the control panel and the maintenance work part of the speed governor are arranged at a height position where the maintenance work can be performed without changing the height direction position of the car.

[0011] In addition, in order to solve the above-mentioned problems, regarding the maintenance method of the elevator device of the present invention, the maintenance device includes a car, and a control panel and a speed governor arranged in the lifting channel, and the maintenance work of the control panel and the speed governor is performed on the upper surface of the car of the car, and the maintenance work part of the control panel and the maintenance work part of the speed governor are arranged at a height position where the maintenance work can be performed without changing the height direction position of the car, and the maintenance work includes an insulation test of the control panel, a trip test of the speed governor, and an emergency stop test. During the maintenance work, the car does not move in the height direction, and the upper surface of the car is positioned at the layer where the maintenance work is performed to perform the maintenance work.

[0012] -Effects of the Invention-

[0013] According to the present invention, it is possible to perform maintenance work on the control panel and the speed governor from the upper surface of the car without changing the height position of the car.

[0014] The other problems, structures, and effects will become more apparent from the following description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view parallel to the vertical direction showing the structure of an elevator device according to an embodiment of the present invention.

[0016] Figure 2 It is a cross-sectional view parallel to the horizontal direction showing the structure of an elevator apparatus according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram showing main equipment of an elevator device according to an embodiment of the present invention and a working environment during maintenance work thereof.

[0018] Figure 4 This is a flow chart of the maintenance method of the elevator device involved in the present invention.

[0019] Figure 5 This is a flowchart of a maintenance method of an elevator device in a comparative example compared with the present invention.

[0020] -Explanation of symbols-

[0021] 100… elevator device, 101… control panel, 101f… maintenance work area of ​​control panel 101, 101g… main power supply of control panel 101, 104… car, 104a… car door, 104c… upper surface of car, 104d1… upper beam (cross beam), 104d2… middle beam (cross beam), 104e… side surface of inner side of car 104, 111… speed governor, 111a… main body of speed governor 111, 111b… upper deflection pulley of speed governor 111, 111c… lower deflection pulley of speed governor 111, 111d… maintenance work area of ​​speed governor 111, 1 11e…speed governor rope, 112…elevator lobby, FLt…height position of the floor where maintenance work is to be performed, HW…lifting passage, OP…operator, S105…the first step of cutting off the main power supply 101g of the control panel 101, S106…the second step of waiting for the discharge of the capacitor of the control panel 101, S107…the third step of performing an insulation test (insulation measurement) of the control panel 101, S108…the fourth step of assembling the tool for the speed governor tripping test to the speed governor 111, S109…the fifth step of performing a tripping test of the speed governor 111, S114…emergency stop test. DETAILED DESCRIPTION

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0023] Reference Figure 1 as well as Figure 2 , the overall structure of the elevator device 100 is briefly described. Figure 1 It is a cross-sectional view parallel to the vertical direction, showing the structure of the elevator apparatus 100 according to one embodiment of the present invention. Figure 2 It is a cross-sectional view parallel to the horizontal direction, showing the structure of the elevator apparatus 100 according to one embodiment of the present invention.

[0024] exist Figure 1 In order to explain the structure of the elevator device 100, the size of the elevator passage HW, the orientation of each device arranged in the elevator passage HW, etc. are depicted in a manner different from the actual one. Figure 1 , the state in which the car 104 stops at the elevator lobby 112 at the top floor is shown, and the handrail 104d provided on the upper surface (ceiling) 104c of the car is in a folded state (storage state).

[0025] like Figure 1As shown, the elevator device 100 includes: a car 104 and a counterweight 105, which are raised and lowered in a lifting channel HW; a traction machine 102, which is wound with a main rope 107 connecting the car 104 and the counterweight 105; a guide rail 109, which is vertically arranged in the lifting channel HW to guide the lifting and lowering of the car 104 and the counterweight 105; a control panel 101, which controls the elevator device 100; and a speed governor 111, which is used to sense the lifting and lowering speed of the car 104.

[0026] The car 104 and the counterweight 105 are installed inside the hoistway HW, and are suspended in a bucket type by the main rope 107. The hoistway HW is installed in a building. One end of the main rope 107 is supported by the ceiling of the hoistway HW, and is laid on the pulley 104b installed on the lower surface side of the car 104 and wound around the sheave of the traction machine 102. The other end side of the main rope 107 wound around the sheave of the traction machine 102 is supported by the ceiling of the hoistway HW via the pulley of the counterweight 105.

[0027] The car 104 is electrically connected to the control panel 101 via a tail cable (not shown), receives power via the tail cable, and exchanges control signals and various signals with the control panel 101. A buffer 106 is disposed on the bottom surface of the hoistway HW below the car 104 and the counterweight 105.

[0028] The hoisting machine 102 is supported by a machine beam 102a and is arranged at the top of the hoistway HW. The control panel 101 is arranged near the hoisting machine 102. That is, the control panel 101 is also arranged at the top of the hoistway HW. The structure of the control panel 101 will be described in detail later.

[0029] The guide rail 109 is fixed to the inner wall (hoistway wall) HW1 of the hoistway HW by a guide rail bracket (not shown).

[0030] exist Figure 2 , the lifting channel HW is shown as viewed from above the car 104, and the car upper surface 104c of the car 104 is depicted. Figure 2 As shown, the car 104 is provided with a car door 104a on the side facing the elevator lobby 112, and an entrance door 112a opposite to the car door 104a is provided on the elevator lobby 112 side. Between the other sides of the car 104 except the side provided with the car door 104a and the hoistway wall HW1, there is a space for arranging equipment (equipment in the hoistway) such as the traction machine 102, the speed regulator 111 and the control panel 101.

[0031] The elevator device 100 of this embodiment is a traction type, and the main rope 107 is frictionally driven by the traction machine 102 to make the car 104 rise and fall along the car guide rail 109A, and the counterweight 105 rise and fall along the counterweight guide rail 109B.

[0032] The guide rail 109 is vertically provided along the hoistway wall HW1 in the vertical direction (height direction). Figure 1 The guide rail 109 described in the figure includes a car guide rail 109A and a counterweight guide rail 109B. The car guide rail 109A is a guide rail for the car 104 and is composed of a pair of guide rails. The counterweight guide rail 109B is a guide rail for the counterweight 105 and is composed of a pair of guide rails.

[0033] When viewed from the elevator lobby 112 side, a pair of car guide rails 109A are separately arranged on the left and right sides of the lift passage wall HW1 relative to the car 104. One of the pair of car guide rails 109A is fixed to the lift passage wall HW1 by a common guide rail bracket not shown in the figure, and the other is fixed to the lift passage wall HW1 by a car guide rail bracket not shown in the figure. The common guide rail bracket is a guide rail bracket shared by the car guide rail 109A and the counterweight guide rail 109B. The car guide rail bracket is a guide rail bracket dedicated to the car guide rail set for the car guide rail 109A.

[0034] A pair of guide rails 109B for counterweights are arranged in a space in the lift passage HW where the counterweight 105 is arranged. That is, when viewed from the elevator lobby 112 side, the pair of guide rails 109B for counterweights are arranged in the same space on either the left or right side relative to the car 104. One of the pair of guide rails 109B for counterweights is fixed to the lift passage wall HW1 by a common guide rail bracket, and the other is fixed to the lift passage wall HW1 by a counterweight guide rail bracket not shown. In addition, in the present embodiment, when viewed from the front, the common guide rail bracket is fixed to the lift passage wall HW1 opposite to the left side (left side) of the car 104, and the guide rail bracket for counterweights is fixed to the lift passage wall HW1 opposite to the back side of the car 104.

[0035] Hereinafter, in the guide rails 109A for a car and the guide rails 109B for a counterweight, when there is no need to distinguish between “for a car” and “for a counterweight”, “for a car” and “for a counterweight” are omitted and the guide rails 109 are simply referred to as guide rails 109 for explanation.

[0036] The hoisting machine 102 is arranged in a space constituting the left side relative to the car 104 when viewed from the elevator lobby 112. In this embodiment, a speed governor 111 is arranged in the space on the same side as the hoisting machine 102. Figure 1The machine beam 102a described above is fixed to the hoistway wall 101a, but the hoisting machine 102 is fixed to the hoistway wall HW1 via the car guide rail 109A and the counterweight guide rail 109B by bridging the machine beam 102a between the car guide rail 109A and the counterweight guide rail 109B.

[0037] When viewed from the elevator lobby 112 side, the control panel 101 is arranged in a space constituting the right side relative to the car 104. The control panel 101 is fixed to the hoistway wall HW1 by a control panel bracket (not shown). In this case, the control panel bracket is fixed to the car guide rail 109A, and the control panel 101 is fixed to the hoistway wall 101a via the car guide rail 109A.

[0038] Reference Figure 3 , the main equipment of the elevator device 100, including the control panel 101, and its maintenance work are explained. Figure 3 This is a schematic diagram showing main equipment of the elevator apparatus 100 according to one embodiment of the present invention and a working environment during maintenance work thereof.

[0039] The elevator device 100 of this embodiment is called a machine room-less elevator device, and the main equipment such as the traction machine 102, the control panel 101 and the speed governor 111 are arranged at the top of the hoistway HW. When inspecting the main equipment, the operator OP rides on the upper surface 104c of the car 104 to perform the inspection work. During the inspection work, in order to allow the operator OP to ride on the upper surface 104c of the car, the upper surface 104c of the car is positioned at the height position FLt of the elevator lobby 112 at the top floor. Figure 3 , the state where the car upper surface 104c is positioned at the height position FLt of the topmost elevator lobby 112 and the operator OP is riding on the car upper surface 104c is shown. In order to prevent falling from the car upper surface 104c, the operator OP who has ridden on the car upper surface 104c unfolds the stored handrail 104d. The unfolded handrail 104d has a horizontal beam (upper beam 104d1, middle beam 104d2) extending in the horizontal direction and arranged in the vertical direction.

[0040] Here, the control panel 101 will be described. The control panel 101 includes a main circuit panel portion 101a, a power receiving panel portion 101b, a signal panel portion 101c, a regenerative resistor panel portion 101d, and a battery panel portion 101e.

[0041] The main circuit panel 101a is a control panel on which the motor and brake of the traction machine 102 are controlled, a control substrate, etc. The main circuit panel 101a is equipped with a control power supply 101g for controlling the operation of the elevator device 100 including the speed and position of the car 104.

[0042] The power receiving panel 101b is a control panel on which a terminal block for receiving power from the traction machine 102, a disconnector and an electromagnetic contactor for turning on and off the power, and a filter circuit for removing noise superimposed on the power line are installed.

[0043] The signal panel unit 101 c is a control panel unit on which a control board and the like for performing operation control of the elevator apparatus 100 including the speed and position of the car 104 are mounted.

[0044] The regeneration resistor panel unit 101d is a control panel unit on which a resistor is mounted for consuming the regeneration current generated during the regeneration operation of the elevator apparatus 100 as heat energy.

[0045] The battery panel unit 101e is a control panel unit equipped with a battery power supply, which is used to operate the car 104 to the nearest floor when a power outage occurs, or to perform a "brake release" to move the car 104 by creating a weight imbalance between the car 104 and the counterweight when the elevator device 100 fails, thereby rescuing passengers.

[0046] In the control panel 101, a main circuit panel 101a and a power receiving panel 101b are arranged side by side. A regeneration resistor panel 101d is arranged above the main circuit panel 101a and the power receiving panel 101b, and a signal panel 13 is arranged below the main circuit panel 101a and the power receiving panel 101b. A battery panel 101e is arranged below the signal panel 101c. That is, the control panel 101 comprises: a regeneration resistor panel section 101d, a main circuit panel section 101a, a power receiving panel section 101b, a signal panel section 101c and a battery panel section 101e, the main circuit panel section 101a and the power receiving panel section 101b are arranged in parallel in the horizontal direction, and the regeneration resistor panel section 14, the main circuit panel section 11 and the power receiving panel section 12, the signal panel section 13 and the battery panel section 15 are arranged in sequence from the upper side to the lower side: the regeneration resistor panel section 14, the main circuit panel section 11 and the power receiving panel section 12, the signal panel section 13, and the battery panel section 15.

[0047] The regenerative resistor panel 101d is a control panel that easily generates heat. By arranging it at the uppermost part among the main circuit panel 101a, the power receiving panel 101b, the signal panel 101c, the regenerative resistor panel 101d and the battery panel 101e, the thermal influence on other control panels can be reduced.

[0048] In particular, in the control panel 101 of the present embodiment, the regenerative resistor panel section 101d is arranged above the main circuit panel section 101a, and the signal panel section 101c is arranged below the main circuit panel section 101a. That is, the regenerative resistor panel section 101d, the main circuit panel section 101a, the signal panel section 101c, and the battery panel section 101e are arranged in a row (serial) so as to be arranged in this order from the top to the bottom of the control panel 101. In other words, the regenerative resistor panel section 101d, the main circuit panel section 101a, the signal panel section 101c, and the battery panel section 101e are arranged in a row (serial) along the longitudinal direction of the control panel 101. The power receiving panel section 101b is arranged so as to protrude in the horizontal direction (lateral direction) from the row of the regenerative resistor panel section 101d, the main circuit panel section 101a, the signal panel section 101c, and the battery panel section 101e arranged in series. Therefore, a space is formed below the power receiving panel section 101b.

[0049] By forming a space below the power receiving panel 101b, the electrical wiring can be connected to the power receiving panel 101b from below the power receiving panel 101b using the space, so that the handling of the electrical wiring can be easily performed. For example, the lead-in wire (not shown) of the power supply of the traction machine 102 can be connected from the space formed below the power receiving panel 101b through the power receiving panel 101b, so that the handling of the lead-in wire becomes easy.

[0050] In the past, the functions of the power receiving unit 101b were sometimes dispersed and arranged in the main circuit panel 101a and the signal panel 101c. In contrast, in the present embodiment, the functions of the power receiving unit are concentrated in the power receiving unit 101b. In addition, the control power supply 101g for performing the operation control of the elevator device 100 is arranged in the main circuit panel 101a. In this case, the control power supply 101g can be arranged closer to the lower end than the upper end of the main circuit panel 101a, but it can also be arranged at a position lower than the height (e.g., 1650mm) that can be inspected and maintained as described later.

[0051] Since the main equipment such as the control panel 101, the traction machine 102 and the speed governor 111 are concentratedly arranged at the top of the hoistway HW, the coordination of the arrangement locations of the various equipment is strict, and the installation height of the various equipment is also limited. Among them, in order to improve the maintainability, the maintenance work area 101f of the control panel 101 for regular maintenance and other maintenance is arranged in a range (for example, 0 to 1650 mm) up to the height (for example, 1650 mm) at which the operator OP can perform maintenance without using a platform or the like. As a result, the operator OP can perform necessary maintenance work on the control panel 101 from the car upper surface 101c when the car upper surface 101c of the car 104 is positioned at FLt.

[0052] Furthermore, in this embodiment, the maintenance operation position 111d of the speed governor 111 is arranged in a range (for example, 0 to 1650 mm) up to a height (for example, 1650 mm) at which the operator OP can perform maintenance without using a step or the like, with the upper surface 104c of the car positioned at FLt as a reference (0 mm). The elevator device 100 of this embodiment is provided with a speed governor 111 for sensing the lifting speed of the car 104. The speed governor 111 is arranged at a position lower than the upper ends of the main circuit panel 101a and the power receiving panel 101b. Thus, the speed governor 111 and the control panel 101 can be inspected in parallel.

[0053] The maintenance work locations 101f and 111d are not limited to locations where maintenance is performed, but also include locations where work accompanying maintenance is performed.

[0054] In this embodiment, the method of arranging the main equipment such as the control panel 101, the traction machine 102 and the speed governor 111 at the top of the hoistway HW is described, but the structure and effect of the above-mentioned embodiment can also be used for the method of arranging the main equipment such as the control panel 101, the traction machine 102 and the speed governor 111 at a place other than the top of the hoistway HW. For example, when the control panel 101 is arranged at the height of the second floor of the hoistway HW (in this case, the second floor is not the top floor), FLt can be set at the height position of the elevator lobby floor of the second floor, and the upper surface 104c of the car can be positioned at the height of the elevator lobby floor of the second floor to perform maintenance work. However, when the traction machine 102 is arranged at the top of the hoistway HW, the main equipment such as the control panel 101 and the speed governor 111 are also preferably arranged at the top of the hoistway HW close to the traction machine 102. In this way, the efficiency of maintenance work is improved.

[0055] Thus, FLt indicates the elevator lobby 112 of the floor where the maintenance work of the control panel 101 and the speed governor 111 is performed or its height position.

[0056] In addition, in this embodiment, the height of the operator OP is set to 1700 mm, and the inspectable height H1 is set to 1650 mm.

[0057] On the upper surface 104c of the car, the handrail 104d is unfolded during maintenance work. The handrail 104d of this embodiment has two crossbeams 104d1 and 104d2. The height H2 of the upper end of the upper beam 104d1 is 1100 mm. The height H3 of the lower end of the middle beam 104d2 is set to be less than 500 mm (500 mm in this embodiment). When the width dimension W1 of the two crossbeams 104d1 and 104d2 in the up and down direction is 50 mm, the interval G1 between the lower end of the upper beam 104d1 and the upper end of the middle beam 104d2 is 550 to 1050 mm. In addition, the range from the upper end H2 of the upper beam 104d1 to the height H1 that can be inspected (1100 to 1650 mm) is the non-interference range of the handrail 104d. In addition, a non-interference range of the horizontal beams 104d1 and 104d2 is formed between the height H3 from FLt to the lower end of the middle beam 104d2 and between the lower end of the upper beam 104d1 and the upper end of the middle beam 104d2. In addition, the specific numerical values ​​of H1 to H3, G1, and W1 are only examples set in this embodiment.

[0058] The speed governor 111 is a device for sensing the lifting speed of the car 104, and comprises: a main body (speed governor sheave) 111a; an upper diverting pulley 111b, which is arranged above the main body 111a; a lower diverting pulley 111c, which is arranged below the main body 111a; and a speed governor rope 111e, which is wound around the main body 111a, the upper diverting pulley 111b and the lower diverting pulley 111c.

[0059] Among the maintenance operations performed during the regular maintenance, there are three operations that take up time during the maintenance operations. One is the insulation test of the control panel 101, the second is the trip test of the speed governor 111, and the third is the emergency stop test. The trip test of the speed governor 111 is a test to check whether the speed governor 111 is operating normally, and it is necessary to set the main body (speed governor sheave) 111a to a state where it can rotate freely. Therefore, it is necessary to remove the speed governor rope 111e from the main body 111a to relieve the load of the speed governor rope 111e applied to the main body 111a (hereinafter referred to as the "lifting state"). At this time, it is necessary to lift the lower steering pulley 111c.

[0060] In order to contact the lower diverting pulley 111c, the main body 111a, the upper diverting pulley 111b and the lower diverting pulley 111c are preferably arranged so that the maintenance operation part 111d of the speed governor 111 does not interfere with the handrail 104d. Therefore, the main body 111a is preferably arranged above the cross beams 104d1 and 104d2. In addition, the lower diverting pulley 11c is preferably arranged below the upper beam 104d1 and above the middle beam 104d2. Alternatively, the lower diverting pulley 111c is preferably arranged above the upper surface 104c of the car and below the middle beam 104d2.

[0061] In addition, in the trip test and emergency stop test of the speed governor 111, it is necessary to assemble the instruments required for the test on the main body 111a of the speed governor 111. For example, a drive device for rotating the main body 111a, an encoder for detecting the rotation speed, etc. It is preferred that the main body 111a is arranged above the handrail 104d so as not to interfere with the assembly work.

[0062] Furthermore, in the emergency stop test, for safety reasons, the operator OP needs to go down from the car upper surface 104c to the elevator lobby 112 to perform the test. Therefore, in order to reduce the moving time between the car upper surface 104c and the elevator lobby 112, the speed governor 111 is preferably arranged on the side close to the elevator lobby 112. In addition, by arranging the speed governor 111 on the side close to the elevator lobby 112, the movement line of the operator OP becomes simple, which can improve the working efficiency.

[0063] In this case, the speed governor 111 is preferably arranged at a position closer to the car door 104a than the inner side (the side opposite to the car door 104a side) 104e of the car 104 as viewed from the elevator lobby 112. If possible, the main body 111a of the speed governor 111, the upper deflection pulley 111b, the lower deflection pulley 111c, and the speed governor rope 111e are preferably arranged within 1m from the car door 104a to the inner side.

[0064] Reference Figure 4 , a maintenance method of the elevator device 100 involved in the present invention is explained. Figure 4 This is a flowchart of the maintenance method of the elevator device 100 according to the present invention.

[0065] In addition, Figure 4 , the maintenance method is shown in the following case: the control panel 101 and the speed governor 111 are arranged at a height position where maintenance work can be performed from the upper surface 104c of the car positioned at the same FLt, and the traction machine 102 is arranged at a height position where maintenance work cannot be performed from the upper surface 104c of the car positioned at the same FLt.

[0066] In step S101, move to the top-floor elevator lobby 112. In step S102, move the car 104 to FLt. In step S103, assemble the handrail 104d. In step S104, the operator OP gets on the upper surface 104c of the car. In step S105, the main power supply (control power supply) 101g of the control panel 101 is cut off (first step). Next, steps S106, S107 and steps S108, S109 are executed in parallel. In this case, executing steps S106, S107 and steps S108, S109 in parallel means that at least a part of the operations of steps S106 and S107 and at least a part of the operations of steps S108 and S109 are performed in parallel at the same time. Of course, this also includes the case where the illustrated operations of steps S106 and S107 and the illustrated operations of steps S108 and S109 are performed in parallel at the same time.

[0067] In step S106, the capacitor is waited for to be discharged (about 10 minutes) (step 2). In step S107, an insulation test (insulation measurement) is performed (step 3). In the insulation test, the main power supply (control power supply) 101g of the control panel 101 needs to be cut off and wait until the discharge of the capacitor is completed. The car 104 cannot move until the main power supply 101 is turned on again in step S110.

[0068] On the other hand, in step S108, the tool (drive device, encoder, etc.) for the speed governor trip test is assembled (step 4). In step S109, the speed governor trip test (speed governor trip measurement) is performed (step 5), and the recovery work (tool removal, etc.) is performed.

[0069] By executing steps S106 and S107 in parallel with steps S108 and S109, the work efficiency is improved. In particular, since the tool for the speed governor trip test can be assembled during the waiting time (about 10 minutes) for the capacitor to discharge, there is no wasted time and the work time can be shortened.

[0070] In step S110, the main power supply 101g of the control panel 101 is turned on. In step S111, the stop SW (switch) of the car 104 is turned on so that the car 104 cannot be raised or lowered. In step 112, the speed governor 111 is fixed in the lifting state. In step 113, the operator OP goes down from the upper surface 104c of the car to the elevator lobby 112. In step S114, an emergency stop test is performed. When it is determined that there is no abnormality in the emergency stop device 114, the emergency stop device 114 is restored, and in step S114-1, the operator OP gets on the upper surface 104c of the car. In step S115, the lifting state of the speed governor 111 is released. In step S116, the stop SW of the car 104 is restored.

[0071] In step S117, the car 104 is moved to the inspection position of the traction machine 102. In step S118, the stop switch of the car 104 is turned on. In step S119, the traction machine 102 and the brake device are inspected. In step S120, the tower is inspected (various ropes / elevator hall doors on each floor, etc.) while moving to the bottom + 1st floor. In step S121, the operator OP puts away the handrail 104d and comes down from the upper surface 104c of the car. In step S122, the operator OP moves to the bottom floor and enters the pit. In step S123, the normal recovery of the emergency stop device 114 is confirmed. In step S124, the equipment in the pit and the equipment under the car are inspected, and in step S125, the operator OP exits the pit.

[0072] In this embodiment, during the maintenance work including the insulation test of the control panel 101, the tripping test of the speed regulator 111 and the emergency stop test, the car 104 is not allowed to move in the lifting direction (up and down direction or height direction), and the upper surface 104c of the car is positioned at a given layer (height position) FLt to carry out the maintenance work.

[0073] Reference Figure 5 , a maintenance method for an elevator device in a comparative example compared to the present invention is described. Figure 5 This is a flowchart of a maintenance method of an elevator device in a comparative example compared with the present invention.

[0074] In addition, Figure 5 , there is shown a maintenance method in the case where the control panel 101, the speed governor 111, and the hoisting machine 102 are respectively arranged at heights where maintenance work cannot be performed from the car upper surface 104c positioned at the same FLt.

[0075] In this comparative example, in order to perform the speed governor trip test S108, after the insulation test (insulation measurement) of step S107, it is necessary to adjust the car upper surface 104c relative to the height position of the speed governor 111. That is, in step S201, it is necessary to move the car 104 to the position of the speed governor 111. Therefore, after performing the speed governor trip test S108, it is necessary to restore the stop SW (S202) and move the car 104 to FLt (S203). In addition, in order to adjust the car upper surface 104c relative to the height position of the speed governor 111 again, after the emergency stop test S114, it is necessary to move the car 104 to the position of the speed governor 111 (S204). And, after step S204, in step S205, the stop SW is turned on.

[0076] Thus, in this comparative example, compared with the above-mentioned embodiment, not only can steps S106, S107 and steps S108, S109 not be executed in parallel, but also the movement of the car 104 (S201, S203, S204) and the recovery and connection (S202, S205) of the stop SW accompanying the movement of the car 104 (S201, S203, S204) are additionally required.

[0077] The above-mentioned embodiment of the elevator device 100 has the following features:

[0078] (1) An elevator device 100 includes a car 104, a control panel 101 and a speed governor 111 disposed in a hoistway HW, wherein the control panel 101 and the speed governor 111 are inspected and maintained on a car upper surface 104c of the car 104.

[0079] The maintenance work location 101 f of the control panel 101 and the maintenance work location 111 d of the speed governor 111 are arranged at height positions where maintenance work can be performed without changing the height direction position of the car 104 .

[0080] (2) When viewed from the elevator lobby 112 side, the speed governor 111 is disposed at a position closer to the door 104 a of the car 104 than to the side surface 104 e on the inner side of the car 104 .

[0081] (3) The car 104 has a handrail 104d provided on the upper surface 104c of the car.

[0082] The speed governor 111 includes: a main body 111a; an upper deflection pulley 111b disposed above the main body 111a; a lower deflection pulley 111c disposed below the main body 111a; and a speed governor rope 111e hung around the main body 111a, the upper deflection pulley 111b, and the lower deflection pulley 111c.

[0083] The handrail 104d has horizontal beams 104d1 and 104d2 extending in the horizontal direction.

[0084] The main body 111 a is arranged above the beams 104 d 1 and 104 d 2 .

[0085] (4) As the horizontal beams 104d1 and 104d2, the handrail 104d includes an upper beam 104d1 and a middle beam 104d2 provided below the upper beam 104d1.

[0086] The lower deflection pulley 111 c is disposed below the upper beam 104 d 1 and is disposed above the middle beam 104 d 2 .

[0087] (5) As the horizontal beams 104d1 and 104d2, the handrail 104d includes an upper beam 104d1 and a middle beam 104d2 provided below the upper beam 104d1.

[0088] The lower deflection pulley 111c is arranged above the car upper surface 104c, and is arranged below the center beam 104d2.

[0089] (6) The maintenance work area 101f of the control panel 101 and the maintenance work area 111d of the speed governor 111 are arranged in a height range of 0 to 1650 mm with reference to the car upper surface 104c positioned at the height position FLt of the floor where maintenance work is performed.

[0090] (7) The layer for performing maintenance work is set at the topmost layer.

[0091] The embodiment of the maintenance method of the elevator device 100 described above has the following features:

[0092] (8) A maintenance method for an elevator device 100, the elevator device 100 comprising a car 104, a control panel 101 and a speed governor 111 arranged in a hoistway HW, wherein the control panel 101 and the speed governor 111 are inspected on a car upper surface 104c of the car 104.

[0093] The maintenance work area 101f of the control panel 101 and the maintenance work area 111d of the speed governor 111 are arranged at height positions where maintenance work can be performed without changing the height position of the car 104.

[0094] The inspection work includes an insulation test (insulation measurement) S107 of the control panel 101, a trip test S109 of the speed regulator 111, and an emergency stop test S114.

[0095] During the maintenance work, the car 104 is not moved in the height direction (the lifting direction), and the maintenance work is performed by positioning the car upper surface 104c at the floor FLt where the maintenance work is to be performed.

[0096] (9) The maintenance method includes:

[0097] Step 1 S105, cutting off the main power supply 101g of the control panel 101;

[0098] Step 2 S106, waiting for the capacitor of the control panel 101 to discharge;

[0099] Step 3 S107, performing an insulation test on the control panel 101;

[0100] Step 4 S108, assembling a trip test tool of the speed regulator 111 to the speed regulator 111; and

[0101] Step 5 S109, perform a trip test on the speed regulator 111.

[0102] Regarding the second step S106 and the third step S107 , and the fourth step S108 and the fifth step S109 , at least a part of them are performed in parallel.

[0103] In addition, the present invention is not limited to the above-mentioned embodiments, and includes various modified examples. For example, the above-mentioned embodiments are examples that are easy to understand and explain the present invention in detail, and are not necessarily limited to having all the structures described. In addition, for a part of the structure of the embodiment, other structures can be added / deleted / replaced.

Claims

1. An elevator device, characterized in that: The elevator device includes a car, a control panel and a speed governor arranged in an elevator passage, and maintenance work of the control panel and the speed governor is performed on the upper surface of the car. The inspection work position of the control panel and the inspection work position of the speed governor are arranged at height positions where the inspection work can be performed without changing the height direction position of the car.

2. The elevator device according to claim 1, characterized in that: The speed governor is arranged at a position closer to the door of the car than to the side surface on the inner side of the car when viewed from the elevator lobby side.

3. The elevator device according to claim 1, characterized in that: The car has a handrail provided on an upper surface of the car, The speed governor comprises: a main body; an upper deflection pulley disposed above the main body; a lower deflection pulley disposed below the main body; and a speed governor rope hung around the main body, the upper deflection pulley and the lower deflection pulley. The handrail has a horizontal beam extending in the horizontal direction. The main body is arranged above the crossbeam.

4. The elevator device according to claim 3, characterized in that: As the cross beam, the handrail has an upper beam and a middle beam arranged below the upper beam, The lower deflection pulley is arranged below the upper beam and above the middle beam.

5. The elevator device according to claim 3, characterized in that: As the cross beam, the handrail has an upper beam and a middle beam arranged below the upper beam, The lower diverting pulley is arranged above the car upper surface and below the center beam.

6. The elevator device according to claim 1, characterized in that: The inspection work position of the control panel and the inspection work position of the speed governor are arranged in a height range of 0 to 1650 nm with reference to the upper surface of the car located at the height of the floor where the inspection work is performed.

7. The elevator device according to claim 1, characterized in that: The layer for performing the maintenance work is set at the topmost layer.

8. A maintenance method for an elevator device, characterized in that: The elevator device includes a car, a control panel and a speed governor arranged in an elevator passage, and maintenance work of the control panel and the speed governor is performed on the upper surface of the car. The control panel and the speed governor are arranged at a height where the maintenance work can be performed without changing the height position of the car. The maintenance work includes an insulation test of the control panel, a trip test of the speed regulator and an emergency stop test. During the maintenance work, the maintenance work is performed by positioning the car top surface at the floor where the maintenance work is performed without the car moving in the height direction.

9. The maintenance method of an elevator device according to claim 8, characterized in that: The maintenance method comprises: Step 1, cutting off the main power supply of the control panel; Step 2, waiting for the capacitor of the control panel to discharge; Step 3, performing an insulation test on the control panel; Step 4, assembling a tool for a trip test of the speed regulator to the speed regulator; and Step 5: perform a trip test on the speed regulator. Regarding the second step and the third step, and the fourth step and the fifth step, at least a part of both are performed in parallel.

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