JP2007099399A - Control device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device for an elevator capable of performing door opening/closing action of a car door at a proper position in maintenance/inspection of the elevator in the elevator device in which a recessed/projected part corresponding to arrangement of an engagement device of the door of the elevator is provided on a landing side sill and a car side sill. <P>SOLUTION: The control device for the elevator is provided with a car side engagement part provided on the car door 13 of the elevator; a landing side engagement part engaged with the car side engagement part at landing landing of the car to interlock the landing door 9 with the car door; a projection part provided on the landing side sill for guiding the landing door and arranged below the landing side engagement part at full-closing of the landing door; a recessed part provided on the car side sill for guiding the car door and opposed to the projection part with a predetermined clearance in landing the landing of the car; a car position detection means 11 for detecting a position of the car; and a door opening/closing determination means 12 for determining whether or not the door opening/closing action of the car door can be performed based on the detection result by the car position detection means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a control device capable of opening and closing an elevator door at an appropriate position during maintenance and inspection of the elevator.

  A landing door provided at each landing of the elevator is usually driven by a door driving device provided in a car that moves up and down in the elevator hoistway. That is, when the car stops at the landing, driving of the door driving device that drives the car door by engaging the engagement devices provided on the side surface of the landing door and the side surface of the landing side of the car door. Force is transmitted to the landing door via the engagement device. The engaging device is provided, for example, on the landing door so as to be rotatable, and is provided on the car door so that the rotation shaft projects perpendicularly to the car side side surface of the landing door and the landing side. When the car stops at the landing, it is composed of a pair of vanes that are vertically arranged on both sides of the drive roller of the landing door and engage with the drive roller when the car door is opened and closed (for example, a patent Reference 1).

JP-A-10-114484

  In the elevator apparatus described in Patent Literature 1, when the car is raised and lowered, a drive roller is provided on the car side sill protruding from the car to the landing side so that the vane does not contact the landing side sill protruding from the landing to the car side. A predetermined gap is formed between the landing side sill and the car side sill so as not to contact each other. However, when the width of the gap formed between the platform side sill and the car side sill is wide (for example, about 30 mm), for example, when a user getting on and off the car is using a wheelchair, a hospital, etc. When a cart is used for serving, the wheel of a wheelchair or the like is caught in this gap, causing inconvenience in getting on and off the car.

  Therefore, in order to solve the above problem, it is considered to narrow the gap formed between the landing side sill and the car side sill. In such a case, when the car is raised or lowered, in order to prevent collision between the vane provided on the car door and the landing side sill and the drive roller provided on the landing door and the car side sill, In addition, it is necessary to arrange the vane and the landing side threshold so as not to interfere with each other on the vertical projection plane.

  In other words, a part of the landing side sill is placed directly under the drive roller protruding from the landing door to the car side, and the landing side sill is not placed directly under the vane passing through both sides of the drive roller. Place part of the car side sill. In other words, the landing side sill is provided with a convex portion protruding to the car side having a width smaller than the width of the vane at a position immediately below the drive roller when the landing door is fully closed. When the car is landing on the landing, a concave portion having a predetermined gap is formed with this convex portion.

  However, by adopting such a configuration, for example, when the car is stopped on the intermediate floor during maintenance of the elevator and the equipment installed above the landing door is inspected, the landing side sill is placed between the vanes. May be arranged. In this state, when the maintenance worker opens the car door from the inside of the car, there is a problem that the vane and the convex part of the landing side sill come into contact with each other and damage the vane and the convex part of the landing side sill.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator in which concave and convex portions corresponding to the arrangement of the engagement device for the elevator door are provided on the landing side sill and the car side sill. In an apparatus, it is providing the control apparatus of the elevator which can perform the door opening / closing operation | movement of a car door in an appropriate position at the time of the maintenance inspection of an elevator.

  The elevator control device according to the present invention includes a car-side engaging portion provided in an elevator car door and a landing door, and engages with the car-side engaging portion when the car is landing on the landing door. A landing-side engaging part that links the car door to the car door, a landing part that is provided on the landing-side sill that guides the landing door, and is located below the landing-side engaging part when the landing door is fully closed, and the car door is guided. A recessed portion that is provided on the cage side sill and faces the protruding portion with a predetermined gap when landing on the platform, a car position detecting means that detects the position of the car, and a detection result by the car position detecting means And a door opening / closing determination means for determining whether or not the door opening / closing operation of the car door is possible.

  The present invention provides a car side engaging portion provided on a car door of an elevator and a landing door, and engages with the car side engaging portion when the car is landing on the landing to interlock the landing door with the car door. Provided on the landing side engaging part and the landing side sill that guides the landing door, provided on the car side sill that guides the car door, and the convex part arranged below the landing side engaging part when the landing door is fully closed A car door on the basis of a detection result by the car position detecting means, a car position detecting means for detecting a car position, and a concave part facing the convex part with a predetermined gap at the landing of the car. The door opening / closing determination means for determining whether or not the door opening / closing operation of the vehicle is possible, the uneven portion corresponding to the arrangement of the engagement device of the elevator door is provided in the landing side sill and the car side sill. Elevator maintenance and inspection even with an elevator system A, it is possible to implement the door opening and closing operation of the car door at the proper position.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is a block diagram of an elevator control apparatus according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a car that moves up and down in the elevator hoistway 2, 3 denotes a counterweight that moves up and down in the hoistway 2 in directions opposite to the car 1, 4 denotes a car 1 at one end, and the other end Is connected to a counterweight 3, a main rope for hanging the car 1 and the counterweight 3 like a fishing bottle, 5 is a machine room provided above the elevator hoistway 2, and 6 is installed in this machine room 5. The elevator hoisting machine 6a is a driving sheave rotatably provided on the hoisting machine 6, and the main rope 4 is part of a tuft groove formed on the outer peripheral surface of the driving sheave 6a. Is wrapped around. When the driving sheave 6a of the hoisting machine 6 rotates, the main sheave 4 wound around the sheave groove of the driving sheave 6a is rotated by the friction force generated between the sheave groove and the driving sheave 6a. Move in conjunction with movement. That is, the car 1 and the counterweight 3 suspended from the main rope 4 move up and down in the hoistway 2 in opposite directions.

  In addition, 7 is rotatably provided at a position above the counterweight 3 of the machine room 5 and is a sled wheel around which the main rope 4 is wound, 8 is an elevator landing provided on each floor of the building, Reference numeral 9 denotes a landing door provided at each elevator landing 8 for opening and closing the landing doorway.

  Further, 10 is a landing switch provided on a hoistway wall corresponding to each landing 8 in the hoistway 2, and detects that the car 1 moving up and down in the hoistway 2 has landed on the landing 8, for example, It comprises a cam provided on the car 1 and a switch provided on the hoistway wall and engaged with the cam when the car 1 reaches the landing 8. 11 shows the exact position of the car 1 in the hoistway 2 based on the landing information input from the landing switch 10 and the output value of a rotary encoder (not shown) provided in the elevator hoisting machine 6. A car position detecting means for detecting and outputting the position of the car 1 as car position information, 12 is based on the detection result by the car position detecting means 11 and whether or not the car door 13 provided in the car 1 can be opened and closed. Door opening / closing determining means for determining the car, 14 is provided in the car 1, and based on the determination result of the door opening / closing determining means 12, a notifying means for notifying the car 1 whether the car door 13 can be opened or closed, Reference numeral 15 denotes a car operation panel provided in the car 1.

  2 is a detailed view of part A in FIG. 1, FIG. 3 is a view showing a landing door in Embodiment 1 of the present invention, FIG. 4 is a view showing a car door in Embodiment 1 of the present invention, and FIG. 2 is a view taken along the line B-B in FIG. 2, and FIG. 6 is a view taken along the line C-C in FIG. 3 shows the landing door 9 viewed from the car 1 side, and FIG. 4 shows the car door 13 viewed from the landing 8 side.

  2 to 6, the landing doors 9 that open and close the landing doorways formed at the landings 8 are provided with door hangers 9a projecting upward on both sides of the upper ends thereof, and at the upper ends of the door hangers 9a. A hanger roller 9b is rotatably provided. And the said hanger roller 9b rolls on the hanger rail 16 horizontally provided in the hoistway wall above a landing doorway, and the landing door 9 moves and a landing doorway is opened and closed. In addition, guide pieces 9c protrude downward from both sides of the lower end of the landing door 9, and the guide pieces 9c are arranged in the guide grooves 17a of the landing side sill 17 provided on the floor surface of the landing doorway. As a result, the lower end of the landing door 9 is guided to the landing side threshold 17.

  Similarly to the landing door 9, the car door 13 provided on the car 1 for opening and closing the car doorway has a door hanger 13a projecting upward on both sides of the upper end thereof, and a hanger at the upper end of each door hanger 13a. A roller 13b is rotatably provided. Then, the hanger roller 13b rolls on the hanger rail 18 provided horizontally on the car 1 above the car doorway, so that the car door 13 moves and the car doorway is opened and closed. In addition, guide pieces 13c project downward from both sides of the lower end of the car door 13, and the guide pieces 13c are arranged in the guide groove 19a of the car side sill 19 provided on the floor surface of the car doorway. As a result, the lower end of the car door 13 is guided to the car-side sill 19.

  A drive roller 20 is rotatably provided so as to protrude from the car side surface of the landing door 9 to the car 1 side, and the rotation axis thereof is arranged so as to be orthogonal to the car side surface of the landing door 9. (The landing side engaging portion) 21 is provided so as to protrude from the landing side surface of the car door 13 to the landing 8 side. When the car 1 is landing on the landing side, the upper and lower sides of the drive roller 20 provided on the landing door 9 are A pair of vanes (car-side engaging portions) that are arranged in the direction and engage the drive roller 20 when the car door 13 is opened and closed. The driving force of a door driving device (not shown) for driving the car door is transmitted to the landing door 9 by the drive roller 20 and the vane 21 that are engaged with each other when the car 1 is landing on the landing door 9. An engagement device that interlocks with opening and closing of the car door 13 is configured. That is, when the car 1 stops at the landing 8 where the car 1 is located, the vanes 21 are arranged on both sides of the drive roller 20 as shown in FIGS. When the car door 13 is opened, one vane 21 urges the drive roller 20, and the driving force of the door driving device is transmitted to the landing door 9. When the car door 13 is closed, the other vane 21 urges the drive roller 20 so that the driving force of the door driving device is transmitted to the landing door 9. Closed in conjunction with.

  Further, the gap formed between the landing side sill 17 and the car side sill 19 is configured to be narrow, for example, about 10 mm so that a user who uses a wheelchair can easily pass therethrough. In order to prevent a collision between the drive roller 20 provided on the landing door 9 and the car side sill 19 and the pair of vanes 21 provided on the car door 13 and the landing side sill 17 when the car 1 is raised and lowered. The drive roller 20 and the car side sill 19, as well as the vane 21 and the landing side sill 17 are arranged on the vertical projection plane so as not to interfere with each other.

  That is, a part of the landing side sill 17 is disposed immediately below the drive roller 20 protruding from the landing door 9 toward the car 1 side, and immediately below the vane 21 passing through both sides of the drive roller 20, A part of the car side sill 19 is arranged without the landing side sill 17 being arranged. In other words, the landing-side sill 17 has a protrusion 17b that protrudes toward the car 1 with a width smaller than the width of the vane 21 at a position immediately below the drive roller 20 when the landing door 9 is fully closed. Is provided. In addition, the car side sill 19 has a width larger than the width of the drive roller 20 and faces the convex part 17b of the landing side sill 17 with a predetermined gap when the car 1 is landing on the landing. A formed recess 19b is provided.

  In the elevator apparatus having such a configuration, when the car 1 passes through the landing 8, the drive roller 20 protruding from the landing 8 side to the car 1 side and the convex portion 17b of the landing side sill 17 are between the pair of vanes 21, Passes through the recess 19b of the car side sill 19. The gap formed between the landing side sill 17 and the car side sill 19 when the car 1 is landed on the landing 8 is equal to or less than a predetermined value including the portions of the convex portion 17b and the concave portion 19b. It is configured as follows.

  Next, the operation of the elevator control apparatus having the above-described configuration at the time of elevator maintenance inspection will be described with reference to FIGS. FIG. 7 shows a state in which the car 1 is stopped on the intermediate floor in an attempt to maintain and inspect the equipment installed above the landing door 9 below the floor. During the maintenance and inspection of the elevator, the position of the car 1 that moves up and down in the hoistway 2 is detected by the car position detecting means 11. That is, the car position detection means 11 includes the landing information input from the landing switch 10 installed at each floor height in the hoistway 2 and the output value of the rotary encoder provided in the elevator hoisting machine 6. From this, the position of the car 1 is always detected, and car position information is output to the door opening / closing determination means 12.

  The door open / close determining means 12 determines whether or not the car door 13 can be normally opened based on the car position information input from the car position detecting means 11. When it is determined that the operation cannot be normally performed, the opening / closing prohibition information is output. In the state shown in FIG. 7, if the door opening operation of the car door 13 is performed, the vane 21 comes into contact with the convex portion 17 b of the landing side sill 17, so that the door opening / closing determining means 12 opens the car door 13. It is determined that the operation is impossible. Here, the door opening / closing determination means 12 has previously input a range of car positions (hereinafter referred to as “openable / closable range”) in which the door opening / closing operation of the landing door 9 and the car door 13 can be normally performed, When the car position information input from the car position detecting means 11 is within the openable / closable range, it is determined that the door opening / closing operation of the car door 13 is possible. The openable / closable range is, for example, the installation height of the convex portion 17b of the landing side sill 17 provided in the landing 8 of each floor, the length of the convex portion 17b itself, or the installation of the vane 21 provided in the car door 13. It is set based on the height and the length of the vane 21 itself. Further, the length or the like of the vane 21 may be input from the outside, and the openable / closable range may be adapted to various elevator apparatuses.

  The notifying means 14 provided in the car 1 determines whether or not the door opening / closing operation of the car door 13 is possible based on the determination result of the door open / close determining means 12 to the elevator maintenance worker in the car 1. Inform. For example, when opening / closing prohibition information is input from the door opening / closing determination means 12, the fact is displayed on a display device installed as the notification means 14. The notification unit 14 may be configured to blink a predetermined operation button of the car operation panel 15 or to emit an alarm sound or the like from a speaker.

  According to the first embodiment of the present invention, the door opening / closing operation of the car door 13 can be performed at an appropriate position even during maintenance inspection of the elevator. That is, the elevator maintenance worker in the car 1 can know whether or not the car door 13 can be opened and closed in the car 1, and the car 1 is stopped when the car 1 is stopped on the intermediate floor. By performing the door opening operation of the door 13, it is possible to reliably prevent an accident that causes the vane 21 and the convex portion 17b of the landing side sill 17 to collide with each other.

  In addition, when the door opening / closing determination means 12 determines that the door opening / closing operation of the car door 13 is impossible, the restricting means (not shown) is set to lock the car door 13 and restrict the door opening operation of the car door 13. May be provided.

It is a block diagram of the control apparatus of the elevator in Embodiment 1 of this invention. It is the A section detailed drawing in FIG. It is a figure which shows the landing door in Embodiment 1 of this invention. It is a figure which shows the car door in Embodiment 1 of this invention. It is a BB arrow line view in FIG. It is CC arrow line view in FIG. It is a figure explaining operation | movement of the control apparatus of the elevator in Embodiment 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Hoistway 3 Balance weight 4 Main rope 5 Machine room 6 Hoisting machine 6a Drive sheave 7 Baffle 8 Landing 9 Landing door 9a, 13a Door hanger 9b, 13b Hanger roller 9c, 13c Guide piece 10 Landing switch 11 Car position detecting means 12 Door open / close determining means 13 Car door 14 Notifying means 15 Car operation panel 16, 18 Hanger rail 17 Platform side sill 17a, 19a Guide groove 17b Protruding part 19 Car side sill 19b Concave part 20 Drive roller 21 Vane

Claims (5)

  A car-side engaging portion provided on the elevator car door, and a landing provided on the landing door that engages with the car-side engaging portion and interlocks the landing door with the car door when the car reaches the landing. A side engaging portion, a convex portion provided on a landing side sill that guides the landing door, and disposed below the landing side engaging portion when the landing door is fully closed, and a car side that guides the car door A recessed portion provided on a sill and facing the convex portion with a predetermined gap at the landing of the car, a car position detecting means for detecting the position of the car, and a detection result by the car position detecting means And a door open / close determining means for determining whether or not the door opening / closing operation of the car door is possible.   2. The elevator control device according to claim 1, further comprising a notifying unit for notifying the inside of the car whether the door opening / closing operation of the car door is possible based on a determination result by the door opening / closing determining unit.   3. The control device according to claim 1, further comprising a restricting unit that restricts the door opening operation of the car door when the door opening / closing determining unit determines that the door opening operation of the car door is impossible. Elevator control device.   The landing side engaging portion is a drive roller provided rotatably on the landing door, and the car side engaging portion is provided on the car door, and is vertically moved on both sides of the drive roller when the car is landing on the landing. The elevator control device according to any one of claims 1 to 3, wherein the control device is an arranged vane. The door opening / closing determining means determines that the door opening operation of the car door is impossible when the vane contacts the convex portion of the landing side sill by the door opening operation of the car door. The elevator control device described.

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