JP2007022668A - Wiring tool of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring tool of a passenger conveyor capable of facilitating the cleaning work by supporting an electric wire not to form an obstacle for the cleaning work of an oil pan installed below a stairway attached to a frame body assembled by a main frame. <P>SOLUTION: A wire supporting tool 31 is locked to a rail 15 for a front wheel on which a front wheel 12 to be engaged with a stairway chain 14 connected in an endless manner is rolled, an electric wire 32 is supported by the wire supporting tool 31, and the electric wire 32 is installed above an oil pan 5 which is arranged below a stairway 11 to receive oil drips. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wiring tool for fixing electric wiring of a passenger conveyor to a frame framed by a main frame.

6 and 7 show a conventional passenger conveyor wiring tool.
FIG. 6 is a longitudinal sectional view in the longitudinal direction showing the entire structure of the escalator as a passenger conveyor. That is, the main frame 1 is straddled on the inclined portions 43 of the upper landing 41 and the lower landing 42. A drive unit 45 is accommodated in the machine room directly below the upper landing 41. Drive sprockets 44 driven by the drive machine 45 are provided on both sides of the main frame 1 of the machine room. A driven sprocket 46 is provided on both sides of the main frame 1 immediately below the lower landing 42. A step chain 14 connected endlessly is wound around both the sprockets 44 and 46, and is driven by the drive sprocket 44 to circulate.
On both sides of the main frame 1, a front wheel rail 15 and a rear wheel rail 18 having a narrower gauge than the front wheel rail 15 are laid in the traveling direction.

The step 11 is connected to a step chain 14 via a front wheel shaft 13. Front wheels 12 are rotatably attached to both ends of the front wheel shaft 13 and roll on the front wheel rails 15. The rear wheel 17 rolls on the rear wheel rail 18. Accordingly, the step 11 is supported by the front wheel 12 and the rear wheel 17 and is driven by the step chain 14 to circulate.
An oil pan 5 is laid over substantially the entire area of the main frame 1 from the upper landing 41 to the lower landing 42 via the inclined portion 43. The oil pan 5 receives oil droplets of lubricating oil applied to the driving machine 45, the driving sprocket 44, the step chain 14, and the driven sprocket 46.
The main frame 1 is equipped with a drive 45, a step chain safety switch, a skirt guard safety switch, and the like, and is connected by a wiring cable 32. The wiring cable 32 is accommodated in the oil pan 5.

7 is a cross-sectional view taken along the line VII-VII in FIG. The upper and lower main frames 1 are connected by a vertical frame 2. Further, the left and right main frames 1 are connected by a bottom frame 3 and a horizontal frame 4.
A bracket 29 is provided on the vertical frame 2 so as to protrude inward, and the front wheel rail 15 on the return path side is fixed by a bolt 33. In addition, an oil leak receiver 7 is attached to the side surface of the vertical frame 2, and the lubricating oil flowing down through the vertical frame 2 is received and dropped onto the oil pan 5.
The wiring cable 32 in the oil pan 5 is locked to the fixture 6 by the bind wire 50.

As described above, the oil pan 5 is laid along substantially the entire area of the main frame 1 from the upper landing 41 to the lower landing 42 along the lower inner surface of the main frame 1. For this reason, even if the electric device is mounted at various places in the main frame 1, the wiring cable 32 is accommodated in the oil pan 5 and wired so that it can be laid without interference with other parts, particularly the operating part. can do.
Further, since the wiring cable 32 is housed in the oil pan 5, no special space for electrical wiring is required. For this reason, the occupation area of a passenger conveyor can be reduced.

Another example of housing the wiring in the oil pan is described in Patent Document 1. Here, the thing which accommodated the wiring between the machine room floor and the oil pan is disclosed.
That is, by storing the wiring between the machine room floor and the oil pan, it is possible to prevent an operator from stepping on the wiring during maintenance inspection.

JP-A-6-345371 (paragraph numbers 11 and 12)

In the conventional passenger conveyor wiring tool, since the wiring cable 32 is housed in the oil pan 5 as described above, it is possible to avoid interference with other parts in the main frame 1, and the passenger conveyor. It was also possible to reduce the occupying area.
By the way, in the main frame 1, dust or the like enters from the gap between the step 11 and the fixed portion and accumulates in the oil pan 5. For this reason, dust must be removed together with wiping off the oil in the oil pan 5 during maintenance work.
However, in order to clean the oil pan 5, the wiring cable 32 is in the way, so it has been necessary to remove the bind wire 50 and move the wiring cable 32. When the cleaning was completed, the wiring cable 32 had to be returned to the original state and fixed with the bind wire 50. Further, it is necessary to check whether the restoration state is appropriate. For this reason, there existed a problem that cleaning of the oil pan 5 took time.
Further, if the step 11 is circulated while the wiring cable 32 is moved, there is a concern that the wiring cable 32 may interfere with the step 11, so that the operation check of the step 11 is also inconvenient. there were.

  The present invention has been made to solve the above problems, and provides a wiring tool for a passenger conveyor that supports the electrical wiring so as not to hinder the cleaning operation of the oil pan and facilitates the cleaning operation. The purpose is to do.

  The wiring tool of the passenger conveyor according to the present invention, the wiring support is locked to the rail for the front wheel on which the front wheel that supports the step at the front part rolls, and the electric wiring is supported by the wiring support and arranged under the step. The electrical wiring is constructed above the oil pan that receives the oil droplets.

According to the present invention, as described above, since the electrical wiring is installed above the oil pan, the electrical wiring does not hinder the cleaning operation of the oil pan. For this reason, there exists an effect that the cleaning operation | work of an oil pan is easy.
In addition, since the wiring support that supports the electrical wiring is locked to the rail for the front wheel, there is a certain gap between the electrical wiring and the step without centering the mounting position of the wiring support. Can be secured. For this reason, there is also an effect that interference between the electric wiring and the step can be easily avoided.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, and duplication of description was omitted.
Embodiment 1 FIG.
1 to 3 show Embodiment 1 of the present invention. Here, an escalator will be described as a passenger conveyor. The main part of the escalator is the same as that of FIG. 6, but will be described with reference to FIGS.
That is, the main frame 1 is straddled across the inclined portions 43 of the upper landing 41 and the lower landing 42. The upper and lower main frames 1 are connected by a vertical frame 2. Further, the left and right main frames 1 are connected by a bottom frame 3 and a horizontal frame 4. A drive unit 45 is accommodated in the machine room directly below the upper landing 41. Drive sprockets 44 driven by the drive machine 45 are provided on both sides of the main frame 1 of the machine room. A driven sprocket 46 is provided on both sides of the main frame 1 immediately below the lower landing 42. A step chain 14 connected endlessly is wound around both the sprockets 44 and 46, and is driven by the drive sprocket 44 to circulate.
In order to receive the oil droplets of the lubricating oil, the oil pan 5 is fixed to the bottom frame 3 by the fixture 6 and is laid over substantially the entire area of the main frame 1 from the upper landing 41 to the lower landing 42 through the inclined portion 43. Has been.

1 is a cross-sectional view of the escalator as viewed from the cross-section of the portion corresponding to line VII-VII in FIG. 6, FIG. 2 is an enlarged view of the main part on the return path side in FIG. 1, and FIG. It is sectional drawing which looked at the cross section at the arrow.
That is, a front wheel rail 15 is laid on one side of the main frame 1 in the traveling direction, and a front wheel rail 16 is laid on the other side. A rear wheel rail 18 having a narrower gauge than that of the front wheel rails 15 and 16 is laid.
As shown in FIG. 2, the front wheel rail 15 has a long iron plate bent in a U shape in the longitudinal direction to form a groove in which the front wheel 12 rolls. It is a molding material that is lowered so as to be bent further downward and bent further inward to form lips whose opposite ends are opposed to each other at a predetermined interval.

A bracket 29 is provided on the vertical frame 2 so as to project inward, and the front wheel rail 15 on the return path side is fixed by a bolt 33 and a nut 33a. The head of the bolt 33 is rectangular, and the short side is shorter than the interval between the lips of the front wheel rail 15. For this reason, after the head of the bolt 33 is inserted from the gap of the lip below the bottom surface of the groove, the front wheel rail 15 is fastened to the bracket 29 by swinging and tightening with the nut 33a while being engaged with the lip. Fix it. The same applies to the front wheel rail 15 on the forward path side.
The front wheel rail 16 is made of a long angle steel, and the front wheel 12 rolls on one side. Similarly, the rear wheel rail 18 is made of a long angle steel, and the rear wheel 17 rolls on one side.

  The step 11 is connected to a step chain 14 via a front wheel shaft 13. Front wheels 12 are rotatably attached to both ends of the front wheel shaft 13 and roll on the front wheel rails 15 and 16. The rear wheel 17 rolls on the rear wheel rail 18. Accordingly, the step 11 is supported by the front wheel 12 and the rear wheel 17 and is driven by the step chain 14 to circulate and convey passengers.

Here, the wiring support 31 that supports the wiring cable 32 that is the electrical wiring of the escalator is bent into a U-shape, and one side is extended and raised, and the end is bent at a right angle. It is made of a bending material in which a hole through which the bolt 33 is inserted is punched out. The wiring support 31 has the opening 33 facing upward, and a bolt 33 having a threaded portion suspended from the gap of the lip of the front wheel rail 15 is inserted into the hole on the end side, and is attached to the front wheel rail 15 by a nut 33a. Locked.
That is, as shown in FIG. 3, a notch 31a is formed in the extension of the one side of the wiring support 31, and a tool 33 is inserted from the notch 31a so that a nut 33a is attached to the bolt 33. The ends of the wiring support 31 are locked to the front wheel rail 15 by screwing and tightening. Therefore, the wiring support 31 can be attached from the inside of the frame framed by the main frame 1.
That is, the wiring support 31 is attached along the front wheel rail 15, and the bottom surface of the wiring support 31 is installed at a position separated from the inner surface of the oil pan 5 by a dimension H.
An edge frame 34 is fitted into the U-shaped end edge of the wiring support 31 to protect the wiring cable 32. Further, the opening of the wiring support 31 is covered with a lid 35.

According to the first embodiment, since the wiring cable 32 is installed above the oil pan 5, the wiring cable 32 does not hinder the cleaning operation of the oil pan 5. For this reason, the operation | work which moves the cable 32 for wiring and the operation | work which restores become unnecessary, and the cleaning operation | work of the oil pan 5 became easy.
In addition, since the wiring support 31 is locked to the front wheel rail 15, a certain gap is provided between the wiring cable 32 and the step 11 without centering the mounting position of the wiring support 31. Can be secured. Therefore, if the wiring support 31 is simply locked to the front wheel rail 15 and the wiring cable 32 is accommodated, interference with the steps 11 can be avoided, and the wiring cable 32 can be easily installed. it can.

Further, the bolt 33 is engaged with the lip portion of the front wheel rail 15 by being swung after the head portion is inserted into the gap of the lip of the front wheel rail 15, so that an arbitrary position of the front wheel rail 15 can be obtained. The wiring support tool 31 can be attached to.
Furthermore, since the notch 31a is formed in the extension part of one side of the wiring support 31, by inserting a tool from this notch 31a and screwing the nut 33 to the bolt 33 and tightening, The wiring support tool 31 can be attached. That is, the wiring support 31 can be attached from the inside of the frame framed by the main frame 1, so that the attachment work is easy.
Furthermore, since the opening of the wiring support 31 is covered with the lid 35, the oil does not drop directly into the opening.
Furthermore, since the wiring support 31 has the opening facing upward, the wiring cable 32 can be easily locked to the wiring support 31.
Furthermore, since the border frame 34 is fitted to the U-shaped edge of the wiring support tool 31, the wiring cable 32 is not damaged by the edge.
Furthermore, since the wiring support tool 31 is attached discretely, wiring work is easy.

Embodiment 2. FIG.
FIG. 4 shows a second embodiment of the present invention. Here, as the wiring support 36, a rectangular electric conduit 37 through which the wiring cable 32 is inserted, an engaging member 38 that engages the electric conduit 37 with the front wheel rail 15, and the electric conduit 37 is used as an engaging member. And a presser fitting 39 that presses against the base plate 38.
The locking member 38 is bent at a right angle in a Z shape, and a hole 33 through which the bolt 33 is inserted is punched out on one end side, and the bolt 33 has a thread portion suspended from the gap of the lip of the front wheel rail 15. Is inserted into the hole at the end and tightened with the nut 33a to be locked to the front wheel rail 15. Here, a cutout similar to the cutout 31a shown in FIG. 3 is formed in the abdomen of the locking tool 38. A tool is inserted through the cutout and a nut 33a is screwed into the bolt 33 to tighten it. By doing so, the locking tool 38 can be attached.
In addition, the electric wire tube 37 is placed on the other end side of the locking tool 38, the electric wire tube 37 is pressed by one side of the holding metal fitting 39 bent in an L shape, and the other side is fixed to the abdomen of the locking device 38. To do. The bottom surface of the locking member 38 is installed at a position separated from the inner surface of the oil pan 5 by a dimension H.

Also in the second embodiment, as in the first embodiment, the oil pan 5 can be cleaned without moving the wiring cable 32, so that the cleaning work is facilitated.
Further, since the locking tool 38 is locked to the front wheel rail 15, it is not necessary to center the mounting position for mounting the locking tool 38, and the wiring cable 32 can be easily installed.
Further, the bolt 33 is engaged with the lip portion of the front wheel rail 15 by being swung after the head portion is inserted into the gap of the lip of the front wheel rail 15, so that an arbitrary position of the front wheel rail 15 can be obtained. The wiring support 36 can be attached to the cable.
Furthermore, since the wiring support 36 is attached by engaging the bolt 33 having a rectangular head with the front wheel rail 15, the attachment position can be arbitrarily selected.
Furthermore, since the notch is formed in the abdomen of the locking tool 38, the locking tool 38 can be attached to the front wheel rail 15 from the inside of the frame framed by the main frame 1, and the mounting work can be performed. easy.
Furthermore, since the electric conduit 37 is used, it is easy to obtain the members.
In addition, although the electric conduit 37 was made into the square shape, a circular tube may be sufficient.

Embodiment 3 FIG.
FIG. 5 shows a third embodiment of the present invention. In the first and second embodiments, the wiring cable 32 is discretely supported by the wiring support 31 or 36.
Here, the inclined portion 43 of the escalator and the horizontal portions of the upper landing 41 and the lower landing 42 are divided and the wiring cable 32 is continuously supported over the entire area at each portion. That is, the wiring support tool has the same configuration as the wiring support tool 31 in the first embodiment or the wiring support tool 36 in the second embodiment, and the upper landing 41 is a horizontal wiring support 47 and the lower landing 42 is The horizontal portion wiring support 48 and the inclined portion 43 are inclined portion wiring support 49 and support the wiring cable 32 respectively.
Each wiring support tool 47, 48, 49 in the third embodiment has the same structure as the wiring support tool 31 in the first embodiment or the wiring support tool 36 in the second embodiment except that the wiring support tools 47, 48, 49 are long. Detailed description will be omitted.

Also in the third embodiment, since the oil pan 5 can be cleaned without moving the wiring cable 32 as in the first or second embodiment, an effect such as easy cleaning can be obtained.
In particular, since the wiring cable 32 is supported and protected by the wiring supports 47, 48, and 49 over the entire laying area, once the wiring cable 32 is laid, subsequent maintenance and inspection are unnecessary. It is easy to maintain.

Sectional drawing of the wiring tool of a passenger conveyor shown in the cross section orthogonal to the longitudinal direction of the escalator in Embodiment 1 of this invention. Sectional drawing of the wiring tool of a passenger conveyor shown in the enlarged view of the principal part by the side of the return path of FIG. Sectional drawing which looked at the III-III line cross section of FIG. Sectional drawing of the wiring tool of the passenger conveyor in Embodiment 2 of this invention. The longitudinal cross-sectional view of the longitudinal direction of the escalator which shows the wiring tool of the passenger conveyor in Embodiment 3 of this invention. The longitudinal cross-sectional view of the longitudinal direction of the escalator which shows the wiring tool of the conventional passenger conveyor. Sectional drawing of the wiring tool of a passenger conveyor shown by the enlarged view of the principal part by the side of a return path of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Main frame, 2 Vertical frame, 3 Bottom frame, 4 Horizontal frame, 5 Oil pan, 6 Fixing tool, 7 Oil leak receptacle, 11 Step, 12 Front wheel, 13 Front wheel axle, 14 Step chain, 15 Front wheel rail, 16 Front wheel Rail, 17 Rear wheel, 18 Rear wheel rail, 29 Bracket, 31 Wiring support, 31a Notch, 32 Wiring cable, 33 Bolt, 33a Nut, 34 Border frame, 35 Lid, 36 Wiring support, 37 Conduit, 38 Locking tool, 39 Holding bracket, 41 Upper landing, 42 Lower landing, 43 Inclined part, 44 Drive sprocket, 45 Drive machine, 46 Driven sprocket, 47 Horizontal part wiring support, 48 Horizontal part wiring support 49 Inclined wiring support, 50 Bind wire.

Claims (6)

  Wiring tool for passenger conveyor that is attached to a frame framed by a main frame and that is driven by a step chain connected endlessly and that transports passengers on a circulating step to lock the electric wiring of the passenger conveyor to the frame. In this case, the electrical wiring is supported by a wiring support that is locked to a front wheel rail on which a front wheel that supports the step at the front part rolls, and oil that is disposed on the main frame under the step and receives oil droplets. Wiring tools for passenger conveyors, in which the electrical wiring is installed above the bread.   The wiring tool for a passenger conveyor according to claim 1, wherein the wiring support tool is a U-shaped bent body that is locked to the rail for the front wheel with the opening facing upward, and that stores and supports the electric wiring in the recessed portion.   The wiring tool for a passenger conveyor according to claim 2, further comprising a lid that covers the opening of the bent body.   The wiring tool for a passenger conveyor according to claim 1, wherein the wiring support is a tubular body into which electric wiring is inserted and a locking member for locking the tubular body to a rail for a front wheel.   The wiring tool for a passenger conveyor according to claim 2 or 4, wherein the electric wiring is discretely supported at a plurality of locations. The wiring support tool shall support the wiring of the escalator, and is divided into an inclined portion and a horizontal portion near the upper and lower landings, and the entire area is continuously supported at each portion. Wiring tools for passenger conveyors as described in 4.

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