JP2018108890A - Passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor which prevents lubricating oil from being attached to a footstep.SOLUTION: In a rail support member 72, an upper stage part 74 on which a front guide rail 100 is mounted and a lower stage part 78 on which a rear guide rail 200 is mounted are integrally formed in a step-wise shape, a lower gap is formed between a side surface from the upper stage part 74 to the lower stage part 78 and a side surface of the rear guide rail 200, and a lower recess part 82 is formed in the lower stage part 78 corresponding to a lower end between the lower gaps.SELECTED DRAWING: Figure 4

Description

  Embodiments of the present invention relate to passenger conveyors.

  Passenger conveyors such as escalators and moving walkways are provided with front wheels and rear wheels on the steps on which the passengers ride, with the front wheels traveling on the front guide rail and the rear wheels traveling on the rear guide rail. An endless step chain is attached to the front wheel, and the step is moved by driving the step chain by a driving device.

Japanese Patent No. 4855991

  In the steps as described above, there is a problem that the lubricating oil flowing from the step chain adheres to the steps and becomes dirty.

  Then, in view of the said problem, embodiment of this invention aims at providing the passenger conveyor which lubricant does not adhere to a step.

  An embodiment of the present invention includes a truss arranged in the front-rear direction, a plurality of steps that run along the truss and connected endlessly by a step chain, and a pair of left and right front wheels provided on the step And a rear wheel, a front guide rail fixed to the truss, the front wheel traveling, a rear guide rail fixed to the truss, and the rear wheel traveling, and fixed along a vertical frame member of the truss A rail support member, wherein the rail support member is integrally formed in a step shape with an upper step portion on which the front guide rail is placed and a lower step portion on which the rear guide rail is placed, In a passenger conveyor, a lower gap is formed between a side surface from the upper step portion to the lower step portion and a side surface of the rear guide rail, and a lower recess portion is formed in the lower step portion corresponding to the lower end of the lower gap. is there.

Side surface explanatory drawing of the escalator which shows Embodiment 1 of this invention. The perspective view of a step. Travel explanatory drawing of the step which drive | works the inclination part of a truss. AA line sectional view in FIG. The perspective view of a rail support member. The front view of the rail support member of Embodiment 2. FIG.

  Hereinafter, an escalator 10 according to an embodiment of the present invention will be described with reference to the drawings.

Embodiment 1

  The escalator 10 of Embodiment 1 is demonstrated with reference to FIGS.

(1) Escalator 10
The structure of the escalator 10 will be described with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as seen from the side.

  A truss 12 that is a framework of the escalator 10 is supported using support angles 2 and 3 across the upper and lower floors of the building 1.

  Inside the upper floor machine room 14 at the upper end of the truss 12, a drive unit 18 for running the step 30, a pair of left and right drive sprockets 24, 24, and a pair of left and right handrail belt sprockets 27, 27 are provided. Yes. The drive device 18 includes a motor 20 formed of an induction motor (induction motor), a reduction gear, an output sprocket attached to the output shaft of the reduction gear, a drive chain 22 driven by the output sprocket, and rotation of the motor 20. And a disc brake that holds the stopped state. The drive sprocket 24 is rotated by the drive chain 22. The pair of left and right drive sprockets 24, 24 and the pair of left and right handrail belt sprockets 27, 27 are connected by a connecting belt (not shown) and rotate synchronously. A control unit 50 for controlling the motor 20, the disc brake, and the like is provided in the machine room 14 on the upper floor side.

  A driven sprocket 26 is provided inside the lower floor machine room 16 at the lower end of the truss 12. Between the driving sprocket 24 on the upper floor side and the driven sprocket 26 on the lower floor side, a pair of left and right endless step chains 28 and 28 are suspended. That is, the front wheels 301 of the plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals. The front wheel 301 of the step 30 travels along the front guide rail 100 (see FIGS. 3 and 4), and engages with a recess in the outer periphery of the drive sprocket 24 and a recess in the outer periphery of the driven sprocket 26, The step 30 is inverted up and down. Further, the rear wheel 302 travels on the rear guide rail 200.

  On the left and right sides of the truss 12, a pair of left and right skirt guards 44, 44 and a pair of left and right balustrades 36, 36 are erected. A handrail rail 39 is provided on the upper part of the balustrade 36, and the handrail belt 38 moves along the handrail rail 39. A front skirt guard 40 on the upper floor side is provided in the lower front part on the upper floor side of the balustrade 36, and a front skirt guard 42 on the lower floor side is provided in the lower front part on the lower floor side. Inlet portions 46 and 48, which are entrances and exits of the handrail belt 38, protrude from each other. The skirt guard 44 is provided at the lower side of the balustrade 36, and the step 30 runs between the pair of left and right skirt guards 44, 44. Operation panels 52 and 56 and speakers 54 and 58 are provided on the inner side surfaces of the skirt guards 44 on the upper and lower floors, respectively.

  The handrail belt 38 enters the front skirt guard 40 from the inlet 46 on the upper floor side, and is passed over the handrail drive sprocket 27 through the guide roller group 64, and then the skirt through the guide roller group 66. It moves in the guard 44 and appears outside the front skirt guard 42 from the inlet 48 on the lower floor side. The handrail belt 38 moves in synchronization with the step 30 as the handrail drive sprocket 27 rotates together with the main drive sprocket 24. The rotating handrail driving sprocket 27 has a pressing member 68 for pressing the traveling handrail belt 38.

  The upper floor side entrance / exit board 32 is provided horizontally at the entrance / exit on the ceiling surface of the machine room 14 on the upper floor side, and the lower floor side is provided at the entrance / exit on the ceiling surface of the machine room 16 on the lower floor side. The boarding / exiting plate 34 is provided horizontally. A comb-like comb 60 is provided at the tip of the boarding / alighting plate 32, and the step 30 advances or enters from the comb 60. A comb-like comb 62 is also provided on the boarding / alighting plate 34.

  An oil pan 70 is provided at the bottom of the truss 12 from the machine room 14 on the upper floor side to the machine room 16 on the lower floor side. The oil pan 70 receives oil (lubricating oil) dripping from the main drive sprocket 24, the driven sprocket 26, the step chain 28, the step 30, and the like.

(2) Step 30
Next, the step 30 will be described with reference to FIGS.

  As shown in FIG. 2, the step 30 includes a pair of left and right step frames 303, 303, a cleat surface 304 formed on the upper surface of the step frame 303, and a riser surface formed on the rear surface of the step frame 303. The step frame 303, the cleat surface 304, and the riser surface 305 are integrally formed by aluminum die casting.

  A pair of left and right front wheels 301 are provided at the front end of the step frame 303 and below the cleat surface 304. As shown in FIG. 4, the pair of left and right front wheels 301, 301 are provided at both ends of a rotating shaft 306 that is rotatably provided at the front end of the step frame 303. As shown in FIGS. 2 to 4, an endless step chain 28 is connected to the front wheel 301, and the step chain 28 moves, thereby moving the step 30 while the front wheel 301 rotates.

  The front guide rail 100 on which the front wheel 301 travels is fixed to the truss 12 via a rail support member 72. The rail support member 72 will be described later. As shown in FIG. 4, the front guide rail 100 is formed by bending a metal plate, and stands up from the horizontal portion 102 on which the front wheel 301 is placed and travels, and the outer end portion of the horizontal portion 102. The outer wall 104 is formed. The height of the outer wall 104 is set to a height that does not contact the step chain 28 attached to the front wheel 301. The outer wall 104 is provided to prevent the front wheel 301 from being removed from the horizontal portion 102.

  A pair of left and right mounting portions 307 project rearward from the rear lower end portion of the step frame 303, that is, below the riser surface 305. The attachment portion 307 is integrally formed when the step frame 303 is formed. As shown in FIGS. 2 and 4, a pair of left and right rear wheels 302, 302 are provided outside the distal ends of the pair of left and right attachment portions 307, 307. The rear wheel 302 will be described. As shown in FIG. 4, a central shaft 308 that protrudes horizontally is provided on the outer side of the tip of the attachment portion 307. The inner ring portion 310 of the bearing 309 is fixed to the outer end portion of the central shaft 308. A roller 312 made of rubber or synthetic resin is fixed to the outer peripheral portion of the outer ring portion 311 of the bearing 309 provided with the inner ring portion 310 and a plurality of spherical rollers 315 interposed therebetween. In this specification, it is assumed that the rear wheel 302 includes a roller 312 and a bearing 309. A disc-shaped disk fixing portion 313 is fixed to the center shaft 308 with a screw 314 at the tip of the center shaft 308. As shown in FIG. 4, the disc fixing portion 313 prevents the inner ring portion 310 of the bearing 309 from being removed.

  The rear guide rail 200 on which the rear wheel 302 travels is fixed to the truss 12 via a rail support member 72. The rail support member 72 will be described later. The rear guide rail 200 is formed by bending a metal plate, and includes a horizontal portion 202 on which the rear wheel 302 travels, and an inner wall 204 standing upward from the inner side of the horizontal portion 202. The inner wall 204 is provided to prevent the rear wheel 302 from being removed from the horizontal portion 202.

(3) Truss 12
The truss 12 will be described with reference to FIGS. In the truss 12, four main frame members 90 extending in the front-rear direction (traveling direction) are provided on the top and bottom and on the left and right to form a rectangular parallelepiped space. These four main frame members 90 are provided with a pair of left and right vertical frame members 92 in the vertical direction at predetermined intervals (see FIGS. 1 and 2). In addition, horizontal frame members are provided in the left and right directions (not shown) above and below the upper floor end and the lower floor end of the main frame member 90, respectively. Further, a bottom frame member (not shown) is provided on the bottom surface of the truss 12 in the left-right direction.

  Since the escalator 10 is provided so as to connect the upper floor side and the lower floor side, the inclined portion of the main frame member 90 of the truss 12 is attached with an inclination of 30 ° (see FIGS. 1 and 3). Therefore, the vertical frame member 92 is also inclined by 30 ° with respect to the vertical direction (see FIG. 3).

(4) Rail support member 72
The rail support member 72 that supports the front guide rail 100 and the rear guide rail 200 will be described with reference to FIGS.

  As shown in FIG. 5, the rail support member 72 is formed of a bent metal plate, and is fixed along the inside of the pair of left and right vertical frame members 92. That is, as shown in FIGS. 4 and 5, the left side portion of the rail support member 72 is fixed to the vertical frame member 92.

  On the right side of the rail support member 72, an upper and lower two-stage step portion including an upper step portion 74 and a lower step portion 78 is formed. As shown in FIG. 5, the upper stage portion 74 is formed with an upper stage receiving portion 76 extending along the traveling direction of the step 30. Similarly, the lower step portion 78 is formed with a lower step receiving portion 80 extending along the traveling direction of the step 30. The front guide rail 100 is fixed to the upper stage receiving part 76 in the upper stage part 74, and the rear guide rail 200 is fixed to the lower stage receiving part 80 in the lower stage part 78 (see FIGS. 4 and 5).

  A lower gap is formed between the upper step 74 and the lower step 78, and is formed on the upper step 74 side of the lower step 78 with the rear guide rail 200. The lower step 78 corresponds to the lower end of the lower gap. The lower recess 82 is continuously formed. A side surface of the front guide rail 100 fixed to the upper stage portion 74 and the gap are in a straight line. Oil (lubricating oil) that has fallen from members such as the front wheel 301 and the step chain 28 flows from the upper step 74 through the lower gap to the lower recess 82 of the lower step 78 and hangs down from the lower recess 82 to the oil pan 70. Further, the oil that has come out of the rear wheel 302 also flows down from the lower recess 82 in the lower step portion 78 and hangs down on the oil pan 70.

(5) Traveling state of step 30 The traveling state of the step 30 will be described with reference to FIGS. When the step chain 28 is driven, the front wheel 301 of the step 30 travels while rolling on the horizontal portion 102 of the front guide rail 100. In this case, since there is the outer wall 104, the front wheel 301 does not come out of the front guide rail 100. The rear wheel 302 of the step 30 travels while the roller 312 rolls on the horizontal portion 202 of the rear guide rail 200 by the bearing 309. In this case, since there is the inner wall 204, the rear wheel 302 does not derail inside the rear guide rail 200.

(6) Effect According to the present embodiment, the oil that has come out from the front wheel 301 and the step chain 28 flows down from the upper step portion 74 of the rail support member 72 through the lower gap to reach the lower recess 82, and the oil from the lower recess 82. Since it hangs down on the pan 70, it does not flow and adhere to the step 30, and oil does not stick to the front guide rail 100. Further, oil from the rear wheel 302 also flows down to the lower recess 82 in the lower step 78 and hangs down from the lower recess 82 to the oil pan 70, so that oil does not stick to the rear guide rail 200.

  Further, even if the rear wheel 302 of the step 30 is likely to be removed from the inside of the rear guide rail 200, the rear guide rail 200 is prevented by the inner wall 204 standing upward from the inner end of the rear guide rail 200. Do not derail from 200.

  Further, even if the front wheel 301 of the step 30 is likely to be removed from the outside of the front guide rail 100, the front guide rail 100 is prevented by the outer wall 104 standing upward from the outer end portion of the front guide rail 100. Do not take off from.

Embodiment 2

  The escalator 10 of Embodiment 2 is demonstrated with reference to FIG. The difference between the present embodiment and the first embodiment is the front guide rail 100 and the rail support member 72.

  As shown in FIG. 6, the front guide rail 100 according to the present embodiment is formed by bending a metal plate. From the horizontal portion 102 on which the front wheel 301 is placed and traveling, and the inner end portion of the horizontal portion 102. The inner wall 106 is erected upward.

  As shown in FIG. 6, the rail support member 72 of the present embodiment is formed of a bent metal plate, and the left side portion thereof is fixed to the vertical frame member 92.

  On the right side of the rail support member 72, an upper and lower two-stage step portion including an upper step portion and a lower step portion 78 is formed. The front guide rail 100 is fixed to the upper step portion 74, and the rear guide rail 200 is fixed to the lower step portion 78 (see FIG. 6).

  An upper gap is formed between the side wall of the rail support member 72 extending upward from the outside of the upper step portion 74 in FIG. 6 and the front guide rail 100, and an upper recess 84 is continuously formed at the lower end of the upper gap. Has been. In the upper recess 84, oil (lubricating oil) that has dropped from members such as the front wheel 301 and the step chain 28 flows down the side of the front guide rail 100 to the upper recess 84 and hangs down from the upper recess 84 to the oil pan 70. .

  Further, as shown in FIG. 6, a gap is formed between the upper step 74 and the lower step 78, and on the upper step 74 side of the lower step 78, a gap is formed between the rear guide rail 200 and the lower end of the gap. A lower concave portion 82 is formed in the upper portion. In the lower recess 82, oil (lubricating oil) dropped from members such as the front wheel 301 and the step chain 28 flows along the upper step 74 to the lower step 78, and drips from the lower recess 82 to the oil pan 70. Further, the oil that has come out of the rear wheel 302 also flows down from the lower recess 82 in the lower step portion 78 and hangs down on the oil pan 70.

  According to the present embodiment, the oil that has exited from the front wheel 301 and the step chain 28 reaches the lower recess 82 and the upper recess 84 and hangs down from the lower recess 82 and the upper recess 84 to the oil pan 70, and therefore flows into the step 30. In addition, oil does not stick to the front guide rail 100.

Example of change

  In the said embodiment, although demonstrated applying to the escalator 10, you may replace with this and may apply to the moving sidewalk.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Escalator, 12 ... Truss, 28 ... Step chain, 30 ... Step, 70 ... Oil pan, 72 ... Rail support member, 74 ... Upper step part, 78 ...・ Lower step part, 82... Recessed part, 90... Main frame member, 92... Vertical frame member, 100 .. front guide rail, 200. ..Front wheel, 302 ... rear wheel

An embodiment of the present invention includes a truss arranged in the front-rear direction, a plurality of steps that run along the truss and connected endlessly by a step chain, and a pair of left and right front wheels provided on the step And a rear wheel, a front guide rail fixed to the truss, the front wheel traveling, a rear guide rail fixed to the truss, and the rear wheel traveling, and fixed along a vertical frame member of the truss A rail support member, the step chain is attached to the front wheel, and the rear guide rail is erected upward from a horizontal portion where the rear wheel rolls and an inner end portion of the horizontal portion. The front guide rail has a horizontal portion where the front wheel rolls, and an inner wall erected from the inner end of the horizontal portion to the lower side of the step chain, The rail support member has the front guide rail mounted on it. That the upper portion, a lower portion of the rear guide rail is placed is formed integrally stepwise, while from the upper portion of the side surface of the rear guide rail and the side surface to said lower portion, said front A vertical lower gap is formed in which the oil flowing from the inside of the inner wall of the guide rail is transmitted, and the lower step portion corresponding to the lower end of the lower gap is formed with a lower recess in which the oil transmitted through the lower gap hangs down. A vertical upper gap is formed between the rail support member and the side surface of the front guide rail so that oil flowing from the horizontal portion of the front guide rail is transmitted to the upper step portion corresponding to the lower end of the upper gap. Is a passenger conveyor in which an upper recess in which oil that has passed through the upper gap is formed is formed, and an oil pan that receives oil dropped from the lower recess and the upper recess is provided at the bottom of the truss .

Claims (9)

A truss arranged in the front-rear direction,
A plurality of steps that travel along the truss and are connected endlessly by a step chain;
A pair of left and right front wheels and rear wheels provided on the steps;
A front guide rail that is fixed to the truss and on which the front wheels travel;
A rear guide rail fixed to the truss and traveled by the rear wheel;
A rail support member fixed along the vertical frame member of the truss;
Have
In the rail support member, an upper step portion on which the front guide rail is placed and a lower step portion on which the rear guide rail is placed are integrally formed in a step shape,
A lower gap is formed between a side surface from the upper step portion to the lower step portion and a side surface of the rear guide rail,
A lower recess is formed in the lower step corresponding to the lower end of the lower gap,
Passenger conveyor. An upper gap is formed between the rail support member and the side surface of the front guide rail,
An upper recess is formed in the upper step corresponding to the lower end of the upper gap,
The passenger conveyor according to claim 1. The rear guide rail is
A horizontal portion where the rear wheel rolls;
An inner wall erected upward from the inner end of the horizontal portion;
The passenger conveyor according to claim 1. The front guide rail is
A horizontal part where the front wheel rolls;
An outer wall erected upward from the outer end of the horizontal portion;
The passenger conveyor according to claim 3. The front guide rail is
A horizontal part where the front wheel rolls;
An inner wall erected upward from the inner end of the horizontal portion;
The passenger conveyor according to claim 2. The rail support member is formed of a metal plate;
The upper stage receiving part for placing the front guide rail from the upper stage part is bent,
A lower receiving portion for placing the rear guide rail from the lower step portion is bent,
The passenger conveyor according to claim 1. An oil pan for receiving oil is provided at the bottom of the truss,
The passenger conveyor according to claim 6. The step chain is attached to the front wheel;
The passenger conveyor according to claim 1. The passenger conveyor is an escalator or a moving walkway.
The passenger conveyor according to claim 1.

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