JP2008239331A - Machine room waterproofing structure of passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a machine room waterproofing structure of a passenger conveyor capable of setting a cover even when a drive is almost as high as a machine room and higher than a setting level of the cover and capable of preventing dropping of water intruded from an upper opening part of the machine room on the drive. <P>SOLUTION: This machine room waterproofing structure of the passenger conveyor is furnished with; the machine room 11 provided on a truss structural body and in which the drive 10 is stored; a plurality of footstep boards 13 laid above the machine room 11; the cover 22 arranged immediately below the footstep boards 13 and having an opening part surrounded by a rising side wall at a point where a flywheel 21a of the drive 10 is positioned and; a cover part 26 covering an upper surface of the rising side wall and to close the opening part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a machine room waterproof structure for a passenger conveyor.

  An escalator which is a passenger conveyor includes a truss structure disposed between an upper floor and a lower floor, and a pair of truss structures disposed in the vicinity of the upper floor and the lower floor in the truss structure. A step chain gear, an endless step chain spanned between the pair of step chain gears, a plurality of steps supported in a chain on the step chain, and left and right positions on the upper surface of the truss structure 2 A pair of standing balustrades, a pair of moving handrails whose movement trajectory is the outer periphery of the pair of balustrades, and a drive device connected to one step chain gear via a drive chain are provided.

  A machine room is provided on the upper floor side of the truss structure. The machine room accommodates main components such as a drive unit and one step chain gear. An upper opening is formed above the machine room, and a plurality of boarding boards are laid so as to close the upper opening. Each board must be strong enough to withstand passengers, and the upper opening serves as an entrance to the machine room during maintenance and inspection, so it must be heavy enough to be moved by human power. There is. For this reason, the upper opening of the machine room is closed using a plurality of boarding / alighting plates.

  However, since a gap is formed between adjacent boarding / exiting plates, water easily enters the machine room through this gap. If the intruding water is dropped onto the driving device, there is a risk that the driving device may malfunction, and thus it is necessary to prevent water from entering from the upper opening. In particular, an escalator installed outdoors requires a waterproof measure for the machine room.

As a conventional machine room waterproof structure, there is one disclosed in Patent Document 1. Patent Document 1 discloses a technique in which a cover is disposed immediately below a boarding / alighting plate so that water that has entered through the clearance between the boarding / alighting plates is received by the cover and is not dropped on the driving device.
Japanese Utility Model Publication No. 54-71389

  The above-described conventional machine room prevention structure can be applied when the height of the drive device is sufficiently lower than the height of the machine room, but the height of the drive device is close to the height of the machine room. Now, it is not applicable when it is higher than the installation height of the cover. There are various types of drive devices (flat type, top mount type, vertical type, etc.), especially when a vertical type with a large vertical dimension is adopted, it is likely that the cover will be difficult to install, and countermeasures are required. It is.

  Therefore, the present invention is such that the height of the drive device approaches the height of the machine room, and the cover can be installed even if the height is higher than the installation height of the cover, and water that has entered from the upper opening of the machine room is driven. It aims at providing the machine room waterproof structure of a passenger conveyor which can prevent dripping to an apparatus.

  A feature of the present invention is a machine room waterproof structure of a passenger conveyor, which is provided in a truss structure body, in which a drive device is housed, and a plurality of boarding boards laid above the machine room, The cover is disposed immediately below the boarding board and has an opening surrounded by a rising side wall at a position where the upper part of the driving device is located, and is covered with the upper surface of the rising side wall to block the opening. The gist is provided with a lid.

  According to the present invention, since the upper part of the drive device can be disposed at a position higher than the cover using the opening of the cover, the cover can be installed even if the height of the drive device is equal to or higher than the installation height of the cover. Then, water that has entered from the gap between adjacent boarding and unloading plates is dropped on the cover and the lid, and the water flowing on the upper surface of the cover is drained without falling to the opening by the rising side wall. There is nothing to do. From the above, the height of the drive unit approaches the height of the machine room, and the cover can be installed even if it is higher than the installation height of the cover. Water that has entered from the upper opening of the machine room dripped into the drive unit. Can be prevented.

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

  1 to 6 show an embodiment in which the machine room waterproof structure of the present invention is applied to a passenger conveyor. FIG. 1 is a schematic side view of an escalator, FIG. 2 is a side view of the machine room, and FIG. 4A is a plan view of the cover, FIG. 4B is a side view of the cover, FIG. 5A is a plan view of the lid, and FIG. 5B is a lid. FIG. 6 is a side view for explaining the relationship between the height of the flywheel and the height of the side wall of the lid.

  As shown in FIG. 1, an escalator 1 that is a passenger conveyor includes a truss structure 2 arranged between an upper floor (not shown) and a lower floor (not shown), and the truss structure. 2 and a pair of step chain gears 3 and 4 disposed in the vicinity of the upper floor and the lower floor, and an infinite end spanned between the pair of step chain gears 3 and 4. A step chain (not shown), a plurality of steps 6 supported in a chain on the step chain, a pair of balustrades 7 erected on the left and right positions of the upper surface of the truss structure 2, and the pair of balustrades 7 A pair of moving handrails 8 whose outer track is a movement locus and a driving device 10 connected to one step chain gear 3 via a driving chain 9 are provided.

  As shown in detail in FIG. 2, a machine room 11 is provided on the upper floor side of the truss structure 2. A comb plate 12 and a plurality of boarding / alighting plates 13 are laid on the upper surface of the machine room 11, and the upper opening 11 a of the machine room 11 is closed by these. Each boarding board 13 has a strength enough to withstand even if a passenger gets on it, and is set to a weight that can be lifted by human power. Inside the machine room 11, main components such as the driving device 10 and one step chain gear 3 are accommodated.

  The drive device 10 has a so-called vertical shape, and includes a speed reducer 20 and a drive motor 21 placed above the speed reducer 20. On the upper surface of the drive motor 21, a flywheel 21 a that is an upper part of the drive device 10 is arranged.

  As shown in FIGS. 2 and 3, a cover 22 is disposed immediately below the plurality of boarding boards 13 and at a position corresponding to the driving device 10. As shown in FIGS. 4A and 4B, the cover 22 has a flat plate shape larger than the projected area from above the driving device 10 and a base plate 23 having an opening 23a opened on one side. The rising side wall 24 is erected from the periphery of the three sides of the opening 23a. A flywheel 21 a of the driving device 10 is disposed in the opening 23 a surrounded by the rising side wall 24. Further, as shown in FIG. 6, the base plate 23 has a curved shape that is slightly higher at the center and gradually lowers toward the left and right peripheral edges. In addition, H of FIG. 6 shows a horizontal surface. Standing edge portions 23b are formed by bending at the peripheral edges on both sides in the direction orthogonal to the bending direction. That is, the water dropped on the cover 22 does not fall from the left and right peripheral edges of the base plate 23 by the standing edge 23b, but flows from the peripheral edges on both sides in the bending direction. In addition, screw holes 23c are formed at both ends of the base plate 23 in the bending direction. By these screw holes, flanges 25 (shown in FIG. 3) are respectively attached below both ends of the base plate 23 in the bending direction. A drainage pipe (not shown) is connected to each flange 25.

  In addition, among the rising sidewalls 24 in the three directions, the screwing portions 24a are respectively provided at two locations on the sidewalls 24 facing each other.

  The lid portion 26 is placed on the upper surface of the rising side wall 24 of the cover 22 and closes the opening 23a. As shown in FIGS. 5 (a) and 5 (b), the lid portion 26 hangs downward from the rectangular plate portion 27 slightly larger than the opening portion 23 a of the cover 22 and the peripheral edges of the four sides of the plate portion 27. The side wall 28 is provided. A pair of side walls 28 facing each other are formed with two screw cutouts 28a which are long in the vertical direction and open to the lower end. The lid portion 26 is fixed to the cover 22 by screwing a screw (not shown) inserted into the screw notch 28a into the screw screw portion 24a.

  In addition, as shown in FIG. 6, if the height from the base plate 23 of the cover 22 to the upper end of the flywheel 21 a of the driving device 10 is X and the height of the side wall 28 of the lid portion 26 is Y, X <Y Is set to

  In the above configuration, the flywheel 21a of the drive device 10 is located in the opening 23a of the cover 22 even when the height of the drive device 10 is close to the height of the machine room 11 and is equal to or higher than the installation height of the cover 22. The cover 22 can be installed by arranging And the water which penetrate | invaded from the clearance gap between the adjacent boarding / alighting boards 13 is first dripped at the upper surface of the cover 22 or the cover part 26. FIG. The water dropped on the lid portion 26 flows down on the base plate 23 of the cover 22 along the side wall 28. The water on the upper surface of the base plate 23 flows toward the peripheral edge of the base plate 23 in a curved shape without falling to the opening 23a by the rising side wall 24, and is discharged through the flange portion 25 and the like. As described above, the cover 22 can be installed even when the height of the driving device 10 approaches the height of the machine room 11 and is higher than the installation height of the cover 22, and the upper opening 11a of the machine room 11 can be installed. It is possible to prevent water that has entered from the water from dropping into the driving device 10.

  Moreover, if the cover part 26 is removed from the cover 22, the inside of the machine room 11 can be silently seen from the opening part 23a, which is convenient for maintenance and inspection.

  In this embodiment, a side wall 28 is erected downward on the periphery of the lid portion 26, and the side wall 28 is provided with a screw notch 28 a that is long in the vertical direction. The screw part 24a is provided, and the cover part 26 is fixed to the cover 22 by screwing the screw inserted into the screw notch 28a into the screw screw part 24a. Therefore, since the fixing position of the lid part 26 can be adjusted including the height, it can be fixed so as not to interfere with the flywheel 21a positioned higher than the upper end of the rising side wall 24. Further, as shown in FIG. 6, even when the rising side wall 24 of the cover 22 is inclined with respect to the horizontal direction H, the lid portion 26 is horizontally placed on the cover 22 in accordance with the level of the upper surface of the flywheel 21 a. Can be fixed against.

  In this embodiment, if the height from the base plate 23 of the cover 22 to the upper end of the flywheel 21a of the drive device 10 is X and the height of the side wall 28 of the lid portion 26 is Y, X <Y is set. Therefore, even if the lid portion 26 is not screw-fixed, a situation where the lid portion 26 interferes with the flywheel 21a can be prevented.

  In this embodiment, since the flange portion 25 is provided below the periphery of the cover 22, the water dropped on the cover 22 can be drained without dropping into the machine room 11.

  In this embodiment, the upper part of the drive device 10 is the flywheel 21a, but it goes without saying that it may be a part other than the flywheel 21a.

  In addition, in this embodiment, although the case where a passenger conveyor was the escalator 1 was shown, it is needless to say that it can also apply to a moving sidewalk.

The schematic side view of the escalator which concerns on one embodiment of this invention. The side view of the machine room of an escalator. The expanded sectional view of the AA line of FIG. (A) is a top view of a cover, (b) is a side view of a cover. (A) is a top view of a cover part, (b) is a side view of a cover part. Sectional drawing explaining the relationship between the height of a flywheel and the height of the side wall of a cover part.

Explanation of symbols

1 Escalator (passenger conveyor)
2 Truss structure 10 Drive device 11 Machine room 13 Boarding board 21a Flywheel (upper part)
22 cover 23 base plate 23a opening 24 rising side wall 24a screw screwing part 25 collar part 26 lid part 28a notch for screw

Claims (5)

A machine room provided in the truss structure and containing a driving device inside;
A plurality of boarding boards laid above the machine room;
A cover disposed immediately below the boarding board, and having an opening surrounded by a rising side wall at a position where an upper part of the driving device is located;
A lid that covers the upper surface of the rising side wall and closes the opening;
A passenger compartment machine room waterproof structure.   A side wall is vertically suspended at the peripheral edge of the lid portion, and a screw notch for a long screw is provided on the side wall in the vertical direction, and a screw threaded portion is provided on the rising side wall of the cover. The machine room waterproof structure for a passenger conveyor according to claim 1, wherein the lid portion is fixed to the cover by screwing a screw inserted into the notch into the screw threaded portion.   The height from the base plate of the cover to the upper end of the upper part of the driving device is set to X, and the height of the side wall of the lid is set to Y, X <Y. The passenger compartment machine room waterproof structure according to claim 1 or 2.   The machine room waterproof structure for a passenger conveyor according to any one of claims 1 to 3, wherein a flange is provided below the periphery of the cover.   The machine room waterproof structure for a passenger conveyor according to any one of claims 1 to 4, wherein an upper part of the drive device is a flywheel.

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