JP2008179437A - Roller holding fixture and roller holding method for device for detecting delay of moving handrail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roller holding fixture for a device for detecting a delay of a moving handrail capable of improving workability and safety in the roller hoisting work for maintenance. <P>SOLUTION: The roller holding fixture 1 for the device 2 for detecting a delay of the moving handrail comprises a roller holding part 5 to be inserted into a clearance between a roller 4 and the moving handrail 3 so as to hold the roller 4, a support part 6 connected to the roller holding part 5 and supported by an angle material 7 provided along the moving handrail 3, a fixing fastener 8 for fixing the support part 6 to the angle material 7, and a fall preventing faster 9. This roller holding device is fitted to a side part of the moving handrail 3 of the roller 4 in the moving direction, and provided in a predetermined position by sliding into a clearance between the hoisted roller 4 and the moving handrail 3 from the moving direction of the moving handrail 3, and the hoisted roller 4 is lowered and held by the roller holding part 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a roller holding jig and a roller holding method of a moving handrail delay detection device, and in particular, when the moving speed of a moving handrail of an escalator exceeds a certain allowable value with respect to the moving speed of a step and becomes out of synchronization. The present invention relates to a roller holding jig and a roller holding method of a moving handrail delay detecting device that lifts and holds a roller that rotates in contact with the moving handrail in order to check the operating state of the operating moving handrail delay detecting device.

  The moving speed of the moving handrail of the escalator must be synchronized with the moving speed of the platform. This is because if the moving speed of the moving handrail of the escalator becomes slower than the moving speed of the step board, the passenger caught on the moving handrail may fall over or trip over. For this reason, when the ratio of the moving speed of the moving handrail to the rated speed of the escalator has exceeded a certain allowable value and has been delayed for a certain period of time, the safety management that operates the moving handrail delay detection device and stops the escalator is performed. Has been made.

  This moving handrail delay detection device is generally installed at two locations, an upper portion and a lower portion of an escalator. This moving handrail delay detecting device detects the moving speed of the moving handrail by a roller that rotates in contact with the inner surface of the moving handrail on the return side (lower side), a pulse disk provided coaxially with the roller, and a proximity switch. Detected. That is, the movement of the moving handrail is converted into a rotational motion, and the proximity switch detects a pulse interval due to the rotation of the pulse disk. When the moving speed of the moving handrail decreases, the pulse interval becomes longer and the delay of the moving handrail is detected.

  This moving handrail delay detection device is periodically inspected to confirm the safety of the escalator. When inspecting this moving handrail delay detecting device, the roller of the moving handrail delay detecting device is moved away from the moving handrail to operate the escalator, and the detection of the moving handrail delay of the moving handrail delay detecting device by the rotation speed of the roller is normal. Inspect whether or not.

  FIG. 4 shows a conventional roller lifting method in the inspection of the moving handrail delay detecting device. The roller 4 was lifted by being tied to an angle material or the like (not shown) above the roller 4 with a string-like material such as an electric wire 11 and separated from the moving handrail 3. An angle member 7 of a guide rail portion (not shown) is installed along the moving handrail 3 on the side of the moving handrail 3.

  On the other hand, in Patent Document 1, a metal plate is attached to the inner surface of the handrail belt of the escalator, the moving speed of the handrail belt is calculated by a detector, and it is determined whether or not the calculated moving speed is within a predetermined allowable range. An escalator moving handrail monitoring device is disclosed.

JP 2003-40571 A

  As described above, conventionally, in the inspection of the moving handrail delay detection device, the roller is suspended by being tied to an adjacent angle member or the like with a string-like material such as an electric wire. For this reason, there existed a danger that an electric wire etc. will cut | disconnect or a knot may be broken. Further, there is a possibility that the escalator device may be damaged due to interference of the electric wire or the like with the escalator device. Furthermore, since the position of the angle material used for lifting the roller differs depending on the model of the escalator, there has been a problem that a string-like material such as an electric wire has to be installed in accordance with the position of the angle material at every inspection.

  An object of the present application is to provide a roller holding jig and a roller holding method of a moving handrail delay detection device that solves such a problem and improves the workability and safety of a roller lifting operation at the time of inspection.

  In order to achieve the above object, the roller holding jig of the moving handrail delay detecting device according to the present invention is configured such that the moving speed of the moving handrail of the escalator is not synchronized with the moving speed of the step beyond a certain allowable value. A roller holding jig for a moving handrail delay detecting device that lifts and holds a roller that rotates in contact with the moving handrail in order to check the operating state of the operating moving handrail delay detecting device. A roller holding portion that is inserted into a gap with the handrail and holds the roller, a support portion that is connected to the roller holding portion and supported by an angle member provided along the moving handrail, and a fastening that fixes the support portion to the angle member And is attached to the side of the moving handrail of the roller in the moving direction, and is slid from the moving direction of the moving handrail into the gap between the lifted roller and the moving handrail. Placed in, characterized in that to hold the rollers in the roller holding portion down the lifting was rollers.

  In addition, the roller holding jig of the moving handrail delay detecting device includes a fastener including a fixing fastener and a locking fastener, and the fixing fastener engages with a fastening hole provided in the support portion. The fastening member for holding off the angle material from the substantially horizontal direction passes through the through-hole provided in the support portion, and presses the angle material from the substantially vertical direction. It is preferable to prevent detachment from the material.

  In addition, the roller holding jig of the moving handrail delay detecting device has a stopper for detachment, and a spring is installed on the shaft portion thereof. When the roller holding jig is slid into a predetermined position and inserted, the spring is contracted. It is preferably inserted so as not to contact the angle member.

  Furthermore, the roller holding method of the moving handrail delay detection device according to the present invention is a moving handrail delay detection that operates when the moving speed of the moving handrail of the escalator exceeds a certain allowable value with respect to the moving speed of the step and becomes out of synchronization. In order to check the operating state of the apparatus, a roller holding method for a moving handrail delay detecting apparatus that lifts and holds a roller that rotates in contact with the inner surface of the handrail from the moving handrail, and includes an angle member provided along the moving handrail. The step of installing the roller holding jig, the step of lifting the roller of the moving handrail delay detecting device and separating it from the moving handrail, and the roller holding jig are slid into the gap between the roller and the moving handrail from the moving direction of the moving handrail. The process of installing in a predetermined position and the lifted roller is lowered and held on the roller holding part of the roller holding jig, and the roller holding jig is fixed by a fastener. Characterized in that it comprises the steps of, a.

  With the configuration described above, the roller holding jig of the moving handrail delay detection device can hold the roller by floating from the moving handrail using an angle material along the moving handrail. Thereby, it becomes possible to improve the workability and safety of the roller lifting work at the time of inspection of the moving handrail delay detection device.

  In addition, the roller holding method of the moving handrail delay detecting device includes a roller holding jig that is inserted into the gap between the roller and the inner surface of the handrail by sliding it from the direction of moving the handrail and is installed at a predetermined position. This makes it possible to improve the workability and safety of the roller lifting work during the inspection.

  As described above, according to the roller holding jig and the roller holding method of the moving handrail delay detecting device according to the present invention, it is possible to improve the workability and safety of the roller lifting work at the time of inspection.

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

  FIG. 1 shows a schematic configuration of one embodiment of a roller holding jig of a moving handrail delay detecting device according to the present invention. FIG. 2 is a side view of the roller holding jig of FIG. The roller holding jig 1 includes a roller holding portion 5, a support portion 6, a fixing fastener 8, and a disengagement prevention fastener 9 incorporating a spring 10.

  The roller holding part 5 of the roller holding jig 1 is a flat plate in this embodiment. The roller holding unit 5 is inserted into a gap between the moving handrail 3 and the roller 4 of the moving handrail delay detection device 2 to hold the roller 4 in the vertical direction. The support portion 6 of the roller holding jig 1 is a U-shaped plate. The support portion 6 is installed so as to sandwich the vertical plate 12 of the angle member 7 inside the U-shape.

  The fixing fastener 8 is a thumbscrew in this embodiment. A presser plate 14 for pressing the vertical plate 12 of the angle member 7 is attached to the tip of the thumbscrew. The fixing fastener 8 is engaged with a female screw portion 15 provided on the support portion 6 of the roller holding jig 1, and presses the angle member 7 against the support portion 6 with the presser plate 14 so as to be in close contact therewith. That is, the U-shaped support portion 6 is fixed to the angle member 7 by sandwiching the angle member 7 inside the U-shape and tightening the fixing fastener 8.

  The detachment prevention fastener 9 passes through an opening 16 provided in the support portion 6, and a support plate 17 is attached to the tip thereof. The support plate 17 is in contact with the lower portion of the horizontal plate 13 of the angle member 7. When the weight of the roller 4 is generated vertically downward at the point P shown in FIG. 1, the upward force is generated in the fixing fastener 8 using the angle member 7 as a fulcrum. The detachment prevention fastener 9 prevents the fixing fastener 8 from coming off from the angle member 7 pressed by a vertically upward force generated in the fixing fastener 8. That is, when an upward force is generated at a location where the support portion 6 is connected to the fixing fastener 8, the detachment prevention fastener 9 is supported by the support plate 17 in contact with the lower portion of the lateral plate 13 of the angle member 7. Resist by taking the reaction force.

  The fixing fastener 8 and the detachment prevention fastener 9 are both inserted into holes (internal threads and openings) provided in the support portion 6 of the roller holding jig 1 and tightened with nuts. Therefore, the respective fasteners 8 and 9 are not detached from the roller holding jig 1 during inspection or transportation, and there is no possibility of dropping the jigs and fasteners by mistake. Further, the attaching and detaching operations of the roller holding jig 1 are only tightening of the fasteners, and it is not necessary to use a tool, which is a simple and safe inspection operation. Further, since it is not necessary to provide a hole for the fastener on the angle member 7, the roller holding jig 1 can be easily installed on the angle member 7 at the time of inspection, which is a simple inspection work.

  FIG. 3 shows the procedure of the method for holding the roller 4. (A) The roller holding jig 1 is installed on the angle member 7 of the guide rail portion (not shown) in the vicinity of the moving handrail. (B) The roller 4 of the moving handrail delay detection device 2 is lifted and separated from the handrail. The roller 4 can be lifted manually. (C) The roller holding jig 1 is inserted by being slid into the gap between the roller 4 and the moving handrail from the moving direction of the moving handrail and installed at a predetermined position. Since the angle member 7 is installed along the moving handrail 3, the roller holding jig 1 can be slid. Further, when the roller holding jig 1 is slid, the anti-separation fastener 9 is pulled, and the spring 10 installed on the shaft portion is contracted and slid so as not to contact the angle member 7. (D) The roller 4 that has been lifted is lowered and held on the roller holding portion 5 of the roller holding jig 1. Then, the roller holding jig 1 is fixed by the fixing fastener 8 and the disengagement preventing fastener 9 prevents the disengagement.

It is sectional drawing which shows schematic structure of one Embodiment of the roller holding jig of the moving handrail delay detection apparatus which concerns on this invention. It is an AA side view of the roller holding jig of FIG. It is an AA side view of Drawing 1 showing a procedure of a roller holding method. It is sectional drawing which shows the lifting method of the roller at the time of the test | inspection of the conventional moving handrail delay detection apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Roller holding jig, 2 Moving handrail delay detection apparatus, 3 Moving handrail, 4 Roller, 5 Roller holding part, 6 Support part, 7 Angle material, 8 Fixing fastener, 9 Detachment prevention fastener, 10 Spring, 11 Electric wire, 12 vertical plate, 13 horizontal plate, 14 presser plate, 15 female screw portion, 16 opening portion, 17 support plate.

Claims (4)

In order to check the operating state of the moving handrail delay detection device that operates when the moving speed of the moving handrail of the escalator exceeds a certain allowable value with respect to the moving speed of the step and is not synchronized, it rotates in contact with the moving handrail. A roller holding jig of a moving handrail delay detecting device that lifts and holds the roller to be moved from the moving handrail,
A roller holding portion that is inserted into a gap between the roller and the moving handrail and holds the roller;
A support portion connected to the roller holding portion and supported by an angle member provided along the moving handrail;
A fastener for fixing the support portion to the angle member;
With
Mounted on the side of the moving handrail of the roller in the moving direction, slides from the moving direction of the moving handrail into the gap between the lifted roller and the moving handrail, installs it in place, holds the roller lifted down A roller holding jig of a moving handrail delay detecting device, characterized in that a roller is held in a part.   The roller holding jig of the moving handrail delay detecting device according to claim 1, wherein the fastener includes a fixing fastener and an anti-separation fastener, and the fixing fastener is a fastening hole provided in the support portion. The fastener for locking is penetrated through the through-hole provided in the support part and pressed against the angle material from the substantially vertical direction for fixing. A roller holding jig of a moving handrail delay detecting device, wherein a fastener is prevented from coming off from an angle member.   3. The roller holding jig of the moving handrail delay detecting device according to claim 1 or 2, wherein a spring is installed at a shaft portion of the stopper for detachment, and the roller holding jig is inserted by sliding to a predetermined position. In this case, the roller holding jig of the moving handrail delay detecting device is characterized in that the spring is contracted and inserted so as not to contact the angle member. In order to check the operating state of the moving handrail delay detection device that operates when the moving speed of the moving handrail of the escalator exceeds a certain allowable value with respect to the moving speed of the step and is not synchronized, it rotates in contact with the inner surface of the handrail. A roller holding method of a moving handrail delay detecting device for lifting and holding a roller to be moved from a moving handrail,
Installing a roller holding jig on an angle member provided along the moving handrail;
Lifting the roller of the moving handrail delay detection device and separating it from the moving handrail; and
Sliding the roller holding jig into the gap between the roller and the moving handrail from the moving direction of the moving handrail, and installing it at a predetermined position;
Lowering the lifted roller, holding it on the roller holding part of the roller holding jig, and fixing the roller holding jig with a fastener;
A roller holding method for a moving handrail delay detecting device.

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