JP2008213990A - Comb plate abnormality detecting device for passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a comb plate abnormality detecting device for a passenger conveyer, capable of preventing the occurrence of an accident by detecting attachment failure of a comb plate to a tip end of a getting on/off floor. <P>SOLUTION: A first conductive element 20 is provided on first sides of attaching surfaces 12, 17 of the comb plate 14 and the getting on/off floors 8, 9. A second conductive element 22 electrically conducted by contacting with the first conductive element 20 is provided on second sides of the attaching surfaces. An abnormality detecting means detecting change of conduction between the first conductive element and the second conductive element and stopping operation is provided. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus for detecting an abnormality in a comb plate of a passenger conveyor such as an escalator or an electric road, and more particularly to a passenger conveyor that detects an abnormality of a comb plate that is provided at a front end of a passenger floor and has a comb tooth that meshes in a non-contact manner with a cleat of a step board. The present invention relates to a comb plate abnormality detection apparatus.

  Usually, for example, a safety device as disclosed in Patent Document 1 has already been proposed as a technique for detecting breakage of comb teeth of a comb plate provided at the front end of a passenger floor.

Japanese translation of PCT publication No. 2004-510661

  The safety device described in the above-mentioned Patent Document 1 detects the breakage of the comb plate. However, consideration is given to prevent the occurrence of an accident by detecting in advance the attachment failure of the comb plate to the front end of the passenger floor. For example, it has not been possible to prevent an accident in which the comb plate is loosely attached and the comb plate comes into contact with the tread board, or the comb plate is lifted and the passengers scold.

  An object of the present invention is to provide a comb plate abnormality detection device for a passenger conveyor that can prevent the occurrence of an accident by detecting in advance a mounting failure of a comb plate at the front end of a passenger boarding / exiting floor.

  In order to achieve the above object, the present invention provides a first conductor on one side of the mounting surface of the comb plate to the landing floor and the comb plate mounting surface of the landing floor, and on the other side of the mounting surface. A second conductor that is electrically conducted by contact with the first conductor is provided, and the operation is stopped by detecting a change in conduction between the first conductor and the second conductor. An abnormality detection means is provided.

  Since the present invention is configured to contact the conductor provided on the landing floor and the conductor provided on the comb board, if the attachment of the comb board to the boarding floor is loosened, the contact between both conductors becomes unstable. As a result, the current flowing there becomes intermittent or interrupted. Therefore, by detecting the change in continuity of the current with the abnormality detecting means and stopping the operation of the passenger conveyor, it is possible to detect in advance the trouble of attaching the comb plate to the front end of the passenger floor and prevent the occurrence of an accident in advance. It can be done.

  Hereinafter, an apparatus for detecting abnormality in a comb of a passenger conveyor according to the present invention will be described based on the apparatus for detecting abnormality in a comb of an escalator shown in FIGS.

  In general, the escalator 1 includes a frame 4 supported across an upper floor 2 and a lower floor 3, a plurality of steps 5 having end plates and connected endlessly, and both sides of the steps 5 in the moving direction. A balustrade 6A, 6B erected on the frame body 4; movable handrails 7A, 7B that move while being guided by the periphery of the balustrade 6A, 6B; an upper boarding / exiting floor 8 that gets on and off the step 5; It has a lower landing board 9.

  Since the basic structure is the same as that of the upper and lower landing floors 8 and 9, the detailed description will be given below simply using the lower landing floor 9 as an example.

  The getting-on / off floor 9 is made of a metal material, and has a strength member 10 and a decorative member 11 covering the surface thereof. A mounting surface 10S is formed at the tip of the strength member, and a screw hole 13 is cut in the mounting surface 12.

  A comb body 14 is attached to the attachment surface 12 which is the tip of the boarding / alighting floor 9 configured as described above. The comb body 14 is a molded product of an insulating material such as a synthetic resin, and includes a base portion 15 and comb teeth 16 connected to the tip of the base portion 15. The comb teeth 6 mesh with a plurality of cleats 5K formed along the direction of travel on the tread surface of the step 5 in a non-contact state. An attachment surface 17 is formed on the back side of the base portion 15, and a screw through hole 18 is provided through the attachment surface 17.

  By placing the mounting surface 17 of the comb body 14 thus configured on the mounting surface 12 of the getting-on / off floor 9 and screwing a countersunk screw 19 through the screw through hole 18 into the screw hole 13, the comb plate 14 is It is attached to the tip of the boarding / alighting floor 9.

  Incidentally, as shown in FIG. 1, the comb plate 14 shown here is configured by assembling comb plate pieces 14 </ b> A and 14 </ b> B divided into a plurality in the width direction of the comb plate 9 for manufacturing reasons. Then, for each comb plate piece 14A, 14B, nickel powder is applied to, for example, a polyurethane resin or an acrylic resin, which is a first conductor, at the boundary between the base 15 and the comb teeth 16 on the mounting surface 17 which is the back surface thereof. The mixed conductive paint 20 is applied in a direction along the width direction of the comb plate 9, and both ends 20 </ b> E of the conductive paint 20 are bent toward the end of the base 15, in other words, toward the decorative plate 11. It is applied. Therefore, when the entire comb plate 14 is viewed, the conductive paint 20 is applied discontinuously in the width direction.

  Further, an insulator 21 is interposed between the mounting surfaces 12 and 17 so that the conductive paint 20 does not conduct to the strength member 10. A relay terminal 22 is installed at a position of the insulator 21 facing the end 20E of the conductive paint 20. The relay terminal 22 may be the same as the conductive paint 20, or may be a conductive plate or a conductive foil. These relay terminals 22 are installed between the adjacent comb plate pieces 14A, 14B so as to straddle the ends 20E of both conductive paints 20, and are also provided at both ends of the comb plate 14. A lead wire 23 connected to the power supply side is connected to the relay terminal 22E located. In this way, a detection circuit for detecting a change in conduction of current flowing through the conductive paint 20 provided on the comb plate 14 and the landing floor 9 and the end 20E and the relay terminals 22 and 22E is formed. ing.

  As shown in FIG. 3, the lead wire 23 has an abnormality that detects a change in the current of the detection circuit formed by the conductive paint 20, the end 20 </ b> E, and the relay terminals 22 and 22 </ b> E, for example, a current interruption or intermittent flow A current detection relay 24 serving as detection means is connected, and is further connected to a power source (not shown) via an insulating transformer 25. As shown in FIG. 4, a contact 24 </ b> C that is activated by the operation of the current detection relay 24 is provided in the operation control means that controls the start / stop of the operation of the escalator and the abnormal leaving means. Moreover, the insulation transformer 25 protects the power source side when rainwater or the like soaks into the mounting surface 17 of the comb plate 14 and leaks like an escalator installed outdoors. An earth leakage breaker may be installed in place of the insulating transformer 25.

  According to the escalator comb plate abnormality detection device configured as described above, when the countersunk screw 19 is loosened and the comb plate 14 moves up and down with respect to the mounting surface 12 of the landing floor 9 during normal operation, Contact between the end 20E of the conductive paint 20 and the relay terminals 22 and 22E becomes intermittent. As a result, the intermittent energization state flowing therethrough is detected by the current detection relay 24, and the contact 24C is operated to drive the operation control means and the abnormal leaving means to stop the operation of the escalator or issue an alarm. Accidents can be prevented. Further, when the contact between the end 20E of the conductive paint 20 and the relay terminals 22 and 22E is completely lost due to the large looseness of the comb plate 14 of the countersunk screw 19, the operation of the escalator is similarly stopped. Alarms can be issued.

  In the above embodiment, the conductive paint 20 is configured as a part of the detection circuit. However, in order to avoid inconvenience due to the loosening of the comb plate 14, instead of the conductive paint 20, a conductive foil, a conductive film, Furthermore, a conductive wire may be used.

  However, a phenomenon in which a foreign object is caught between the comb teeth 16 of the comb plate 14 and the cleat 5K of the step 5 and the comb body 14 is damaged at the boundary between the comb teeth 16 and the base portion 15 is detected as looseness of the comb plate 14. In the case of detection at the same time, it may not be detected accurately if a conductive foil, conductive film, or conductive wire is used. That is, the conductive foil, the conductive film, and the conductive wire are stretched to some extent when tension is applied. Therefore, when the comb teeth 16 are damaged, the conductive foil, the conductive film, and the conductive wire are not immediately cut. Even if the tooth 16 is broken, an abnormality cannot be detected. When it is desired to detect such breakage of the comb teeth 16 at the same time that the comb body 14 is lifted, it is better to apply the conductive paint 20 instead of the conductive foil, the conductive film, and the conductive wire. That is, since the conductive paint 20 is applied to the comb body 14, when the comb teeth 16 are damaged, the conductive paint 20 is immediately cut easily, so that the breakage of the comb body 14 can be reliably detected.

  Moreover, in the said embodiment, since the electroconductive coating material 20 was apply | coated to the boundary part of the comb tooth 16 and the base 15, it is difficult to detect the damage of each comb tooth 16 one by one. However, the conductive paint 20 is applied so as to bypass each of the comb teeth 16, and then applied to reach the boundary between the comb teeth 16 and the base portion 15. At the same time, it is possible to detect the damage of each comb tooth 16 one by one.

  By the way, although embodiment described above demonstrated the comb board abnormality detection apparatus of an escalator as a comb board abnormality detection apparatus of a passenger conveyor, it is not restricted to an escalator, The comb board abnormality detection apparatus of the electric road which a step board does not produce Needless to say, this can also be applied.

The principal part schematic plan view of the comb board abnormality detection apparatus of the escalator which shows one Embodiment of the passenger board comb board abnormality detection apparatus by this invention. FIG. 2 is a longitudinal side view taken along line AA in FIG. 1. The block diagram which shows the detection circuit of the comb-plate abnormality detection apparatus of FIG. The block diagram which shows the contact of the electric current detection relay of FIG. The perspective view which shows an escalator. The enlarged view which shows the lower boarding / alighting floor of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Escalator, 2 ... Upper floor, 3 ... Lower floor, 4 ... Frame, 5 ... Step, 5K ... Cleat, 6A, 6B ... Parapet, 7A, 7B ... Moving handrail, 8 ... Upper boarding / exiting floor, 9 ... Lower landing floor, 10 ... strength member, 11 ... decorative member, 12 ... mounting surface, 13 ... screw hole, 14 ... comb body, 15 ... base, 16 ... comb tooth, 17 ... mounting surface, 18 ... screw through hole, 19 Plate screw, 20 ... Conductive paint, 20E ... End, 21 ... Insulator, 22, 22E ... Relay terminal, 23 ... Lead wire, 24 ... Current detection relay, 24C ... Contact, 25 ... Insulation transformer.

Claims (8)

  A tread board provided with a plurality of cleats along the traveling direction, a boarding / alighting floor for getting on and off the treading board, and a comb board having comb teeth attached to the front end of the boarding / abutment floor and meshing in contact with the cleats A plurality of conductors that are discontinuously laid on the mounting surface of the comb plate to the boarding / alighting floor and that contact the discontinuous conductors and connect the discontinuous conductors in series to form a detection circuit. The relay terminal is provided on the comb board mounting surface of the boarding / alighting floor, the relay terminals located at both ends of the relay terminals are connected to a power source, and an abnormality detection means for detecting an abnormality of the detection circuit is provided. Comb plate abnormality detection device for passenger conveyor.   A stepping plate that circulates, a plurality of cleats provided along the direction of travel on the tread of the stepping plate, a boarding / exiting floor for getting on and off the treading plate, and a non-contact with the cleat attached to the tip of the boarding / exiting floor A plurality of relays constituting a detection circuit by connecting the discontinuous conductors provided on the boarding / alighting floor side in series with a comb plate having comb teeth meshing with each other, a conductor discontinuously laid on the comb plate A terminal, a power supply for supplying current to the relay terminals located at both ends of the comb plate, and an abnormality detection means for detecting an abnormality by detecting a change in the current flowing through the detection circuit. An apparatus for detecting an abnormality in a comb of a passenger conveyor.   A stepping plate that circulates, a plurality of cleats provided along the direction of travel on the tread of the stepping plate, a boarding / exiting floor for getting on and off the treading plate, and a non-contact with the cleat attached to the tip of the boarding / exiting floor A comb plate having comb teeth meshed with each other, a conductor discontinuously laid on the comb plate, and the discontinuous conductor provided on the landing floor facing the conductor connected in series A plurality of relay terminals, a power source for supplying current to the relay terminals located at both ends of the comb plate among the relay terminals, and an abnormality detection means for detecting an abnormality by detecting a change in the current flowing through the detection circuit; And an operation control means for stopping operation based on the abnormality detection by the abnormality detection means, and the detection circuit is configured to be formed by attaching the comb plate to the boarding / exiting floor. Conveyor Plate abnormality detection device.   A stepping plate that circulates, a plurality of cleats provided along the direction of travel on the tread of the stepping plate, a boarding / exiting floor for getting on and off the treading plate, and a non-contact with the cleat attached to the tip of the boarding / exiting floor A comb plate having comb teeth meshed with each other, a conductor discontinuously laid on the comb plate, and the discontinuous conductor provided on the landing floor facing the conductor connected in series A plurality of relay terminals, a power source for supplying current to the relay terminals located at both ends of the comb plate among these relay terminals, and an abnormality detection means for detecting an abnormality by detecting a change in the current flowing through the conductor; An abnormality notification means for notifying abnormality based on the abnormality detection by the abnormality detection means; and an operation control means for stopping operation based on the abnormality detection by the abnormality detection means, wherein the detection circuit Install on board Comb plate abnormality detection device of a passenger conveyor, characterized by being configured to be formed by Rukoto.   5. The apparatus for detecting abnormality in a comb plate of a passenger conveyor according to claim 1, 2, 3 or 4, wherein the conductor is laid through comb teeth of the comb plate.   6. The apparatus for detecting abnormality in a comb of a passenger conveyor according to claim 1, wherein the conductor is formed by applying a conductive paint.   A stepping plate that circulates, a plurality of cleats provided along the direction of travel on the tread of the stepping plate, a boarding / exiting floor made of a metal material for getting on / off the treading plate, and a base at the tip of the boarding / exiting floor A comb plate formed of an insulating material with a comb tooth attached to the cleat in a non-contact manner, and a conductive paint applied discontinuously at the boundary between the base and the comb tooth of the comb plate A plurality of relay terminals that are attached to the boarding / exiting floor via an insulator and connect the discontinuous conductive paints in series to form a detection circuit, and the relay terminals are positioned at both ends of the comb plate. A power source for supplying current to the relay terminal, an abnormality detecting means for detecting an abnormality by detecting a change in the current flowing through the detection circuit, and an abnormality notifying means for notifying an abnormality based on the abnormality detection by the abnormality detecting means, , The abnormality detection means An operation control means for stopping the operation based on the detection, and the detection circuit is formed so that the discontinuous conductive paint and the relay terminal are in contact with each other by attaching the comb plate to the landing floor. An apparatus for detecting abnormality in a comb plate of a passenger conveyor, characterized in that the apparatus is configured.   A tread board provided with a plurality of cleats along the traveling direction, a boarding / alighting floor for getting on and off the treading board, and a comb board attached to the front end of the boarding board and having comb teeth that engage with the cleats in a non-contact manner; A first conductor provided on one side of the mounting surface of the comb plate to the boarding floor and the comb plate mounting surface of the boarding floor; and the first conductor provided on the other side of the mounting surface. A second conductor that is electrically conducted by contact with the first conductor, and an abnormality detection means that detects a change in conduction between the first conductor and the second conductor and stops operation. An apparatus for detecting an abnormality in a comb of a passenger conveyor.

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