JP2020093917A - Passenger conveyor - Google Patents

Abstract

To provide a passenger conveyor that reduces the amount of oil dripping from the members that support the front rail, rear rail, reversing rail, etc. to the treads on the returning passage side.SOLUTION: There are provided an upper front rail 601 on a going passage side on which front wheels 301 travel, and an upper rear rail 621 on a returning passage side on which rear wheels 302 travel. On the upper surface of a presser rail 68 above the upper rear rail 621, a first connecting member 72 which supports the tip of the upper front rail 601 is erected. An inclined surface 724 is formed at the bottom of the first connecting member 72 to allow oil to flow downward.SELECTED DRAWING: Figure 4

Description

Embodiments of the present invention relate to passenger conveyors.

Conventionally, steps used for passenger conveyors such as escalator and moving walkways are connected by a pair of left and right step chains, and when the steps are reversed from the outward path to the return path, the front wheels of the steps connected by the step chain are It engages the engaging recess of the rotating drive sprocket and reverses.

When the front wheels are inverted by the drive sprocket, the rear wheels are inverted along the semi-circular inversion rail.

JP, 2005-93782, A

As described above, a large number of members for supporting the front rail, the rear rail, and the reverse rail are used in the inverted portions of the front wheels and the rear wheels, and the lubricating oil dripping from the step chain adheres to these members. If a large amount of this adhered lubricating oil drips to the steps on the return path side at a time, there is a problem that the oil will be scattered to the entire passenger conveyor when the steps to which the dripping oil adheres move.

In view of the above problems, it is an object of the present invention to provide a passenger conveyor that reduces the amount of oil dripping from a member supporting a front rail, a rear rail, a reverse rail, or the like to a step on the return path side.

1st Embodiment of this invention WHEREIN: A pair of left and right front wheels rotatably provided in the step which runs in the front-back direction, a pair of left and right rear wheels rotatably provided in each said step, and a pair of left and right. A pair of left and right endless step chains that respectively connect the front wheels, a drive sprocket that rotates while the front wheels are engaged, and turns the steps upside down, and an upper front of the forward side for the front wheels to travel. A rail, an upper rear rail on the forward side for the rear wheels to travel, a lower front rail on the return side for the front wheels to travel, and a lower rear rail on the return path for the rear wheels to travel, The pressing rail includes: a pressing rail that is provided in parallel above the upper rear rail and presses an upper portion of the rear wheel; and a semi-circular inversion rail that connects the upper rear rail and the lower rear rail. A first connecting member that supports the upper front rail is erected on the upper surface of the first connecting member, and a first inclined surface for allowing oil to flow downward is formed on a lower portion of the first connecting member. , Passenger conveyor.

In the second embodiment of the present invention, a pair of left and right front wheels rotatably provided in each step, a pair of left and right rear wheels rotatably provided in each step, and a pair of left and right front wheels. A pair of left and right endless step chains that respectively connect the front wheels, a drive sprocket that rotates while the front wheels are engaged, and turns the steps upside down, and an upper front rail on the forward path for the front wheels to travel, A forward-side upper rear rail for the rear wheels to travel, a return-side lower front rail for the front wheels to travel, a return-side lower rear rail for the rear wheels to travel, and the upper-rear A pressing rail that is provided along the upper side of the rail and presses the upper portion of the rear wheel; and a semi-circular inversion rail that connects the upper rear rail and the lower rear rail, and the pressing rail and the inversion. The passenger conveyor is provided with a second connecting member for connecting the rail, and the second connecting member is formed with a second inclined surface for allowing oil to flow downward.

The side surface explanatory view of the escalator which shows one Embodiment of this invention. The side view which shows the state which the step in a drive sprocket reverses. The left side view of the structure which connects the upper front rail, the upper rear rail, the pressure rail, and the reversal rail. The perspective view which looked at the structure which connects an upper front rail, an upper rear rail, a control rail, and an inversion rail from the right side.

An escalator 10 according to an embodiment of the present invention will be described below with reference to FIGS.

(1) Escalator 10
The structure of the escalator 10 will be described based on FIG. FIG. 1 is an explanatory view of the escalator 10 viewed from the side.

The truss 12 of the escalator 10 is supported by the support angles 2 and 3 across the upper floor and the lower floor of the building 1.

A drive device 18 is provided inside the upper floor machine room 14 at the upper end of the truss 12. The drive device 18 includes a motor 20 including an induction motor (induction motor), a speed reducer, and a drive sprocket 24. A connecting sprocket 80 is coaxially fixed to the drive sprocket 24, and a connecting chain 22 connected to the output shaft of the speed reducer in the drive device 18 is spanned. As a result, when the motor 20 rotates, the output shaft of the speed reducer rotates, and the connecting chain 22 causes the connecting sprocket 80 and the drive sprocket 24 to rotate simultaneously. A control device 50 is provided at an end inside the machine room 14 on the upper floor side.

A driven sprocket 26 is provided inside the machine room 16 on the lower floor side at the lower end of the truss 12, and a pair of left and right endless step chains 28, 28 are bridged between the drive sprocket 24 and the driven sprocket 26. A plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals, and a front wheel 301 of the step 30 runs on a front rail 60 (see FIG. 2) and a rear wheel 302 runs on a rear rail 62. ..

A pair of left and right balustrades 36, 36 are erected on the left and right sides of the truss 12. The handrail belt 38 moves above the balustrade 36 in synchronization with the step 30. The front skirt guard 40 on the upper floor side is provided on the lower front side of the balustrade 36, and the front skirt guard 42 on the lower floor side is provided on the lower front side on the lower floor side. Inlet portions 46 and 48 that are the entrances and exits of the handrail belt 38 are projected.

At the entrance of the ceiling of the machine room 14 on the upper floor, a board 32 for the upper floor is provided, and a comb 33 having comb teeth is provided at the tip of the board 32 for the machine room 16 on the lower floor. The boarding/alighting board 34 on the lower floor is provided at the entrance/exit of the ceiling surface, and the comb 35 on the comb teeth is provided at the tip of the boarding/alighting board 34.

A skirt guard 44 is provided on the lower part of the side surface of the balustrade 36. On the inner surface of the skirt guard 44, operation panels 52 and 56 and speakers 54 and 58 are provided on the upper and lower floors, respectively.

On the bottom surface of the truss 12, an oil receiving plate 78 for receiving the lubricating oil dripping from the step chain 28 or the like is provided.

(2) Drive sprocket 24
Next, the drive sprocket 24 will be described with reference to FIG. Inside the machine room 14, the drive shafts 241 of the pair of left and right drive sprockets 24 are horizontally rotatably attached to the truss 12 (not shown). On the outer peripheral portion of the drive sprocket 24, teeth 242 project at regular intervals, and an engagement recess 243 is formed between adjacent teeth 242, 242.

(3) Step 30
The step 30 will be described with reference to FIG. As shown in FIG. 2, in the step 30, a cleat surface 304 is provided on the upper surface of a frame 303 whose both sides are triangular, and a riser surface 305 is provided on the rear surface thereof, and the frame 303, the cleat surface 304, and the riser surface 305 are provided. Are integrally formed by, for example, aluminum die casting. Front wheels 301, 301 are provided at the front end of the step 30. A pair of left and right rear wheels 302, 302 are rotatably attached to the lower portion of the rear end of the frame 303 of the step 30. The step chain 28 has a plurality of pairs of plates 281, a front wheel 301 and an auxiliary wheel 282 provided at both ends of the plate 281.

(4) Front rail 60, rear rail 62
The front rail 60 and the rear rail 62 will be described with reference to FIGS.

As shown in FIG. 2, the rear rail 62 on which the pair of left and right rear wheels 302, 302 travel is provided along the longitudinal direction of the truss 12, and includes an upper rear rail 621 for the forward path and a lower rear rail 622 for the return path. At the positions of the driving sprocket 24 and the driven sprocket 26, as shown in FIG. 1, a semi-circular inversion rail 64 and an inversion rail 66 for vertically inverting the step 30 are arranged. The inversion rails 64 and 66 are formed so as to surround the drive shaft 241 and the driven shaft 261 respectively.

As shown in FIG. 2, the front rail 60 on which the front wheels 301 travel is provided along the front-rear direction of the truss 12, and has an upper front rail 601 for a forward path and a lower front rail 602 for a return path.

As shown in FIG. 4, the upper front rail 601 is provided with a front rail main body 603 having a rectangular cross section in which the front wheel 301 travels, and is erected upward from the upper end portion of the front rail main body 603 to remove the front wheel 301 from the wheel. And a protective wall 604 for prevention. The front rail body 603 and the protective wall 604 are formed by bending a metal plate. The lower front rail 602 also has a similar structure.

A linear upper front tip rail (hereinafter, simply referred to as “tip rail”) 605 is extended at a tip of the upper front rail 601 on the upper floor side, that is, a portion located above the drive sprocket 24. . The tip rail 605 guides the front wheel 301 so as to fit into the engagement recess 243 of the drive sprocket 24, and the top surface of the tip is inclined downward as it goes forward. Further, the width of the tip rail 605 is as thin as about half of the upper front rail 601. This is because it does not come into contact with the tooth portion 242 of the drive sprocket 24. It is a square tube of the tip rail 605, and is formed by bending a metal plate. The tip rail 605 and the front rail main body 603 are connected by a plate-shaped front rail connection plate 606 provided on the lower surface. The front rail connecting plate 606 is fixed to the upper front rail 601 by bolts 607, and is fixed to the tip rail 605 by welding, and constitutes an upper front rail as one body.

The upper rear rail 621 has an upper rear rail main body 623 of a square tube and a protective wall 624 standing from the upper end portion of the upper rear rail main body 623. The upper rear rail body 623 and the protective wall 624 are formed by bending a metal plate. The lower rear rail 622 also has a similar configuration.

A pressing rail 68 is provided above the upper rear rail 621. The pressing rail 68 has an L-shaped cross section, is a bent metal plate, and has a horizontal plate 681 and a horizontal plate 681 to a vertical plate 682 formed below. The rear wheel 302 travels on the upper surface of the upper rear rail body 623 of the upper rear rail 621, and the upper portion of the rear wheel 302 is restricted from moving upward by the lateral plate 681 of the pressing rail 68.

The reversing rail 64 has an inner peripheral plate 642 formed on the inner periphery of a semicircular plate 641 and an outer peripheral plate 643 formed on the outer periphery. The inner peripheral plate 642 is formed continuously from the upper surface of the upper rear rail body 623, and the outer peripheral plate 643 is formed continuously with the lateral plate 681 of the pressing rail 68. The rear wheel 302 runs between the inner peripheral plate 642 and the outer peripheral plate 643.

(5) Connection Structure of Each Rail Next, the connection structure of the upper front rail 601, the upper rear rail 621, the pressing rail 68, and the reversing rail 64 will be described with reference to FIGS. 3 and 4. In addition, the upper front rail 601, the upper rear rail 621, the pressing rail 68, and the reversing rail 64 are paired on the left and right, but only the connection structure on the right side will be described. The left side is symmetrical with the connection structure on the right side. Further, in FIG. 4, the description of the bolt is omitted.

(5-1) First connection member 72
Next, the first connecting member 72 that connects the tip rail 605 and the pressing rail 68 will be described with reference to FIGS. 3 and 4.

As shown in FIGS. 3 and 4, the first connecting member 72 is formed by bending a metal plate, and includes a base 721, a support plate 722 bent upward from an end of the base 721, and a support plate. The base plate 722 is bent from the upper end of the base plate 722, and has a pedestal 721 and a mounting plate 723 provided at a position displaced in the front-rear direction. Since the pedestal 721 and the mounting plate 723 are provided at positions displaced from each other, the support plate 722 is formed in a rectangular shape. An inclined surface 724 is formed on the lower surface of the support plate 722 formed in the rectangular shape, except for the pedestal 721. The size of the inclined surface 724 becomes smaller in the vertical direction from the pedestal 721 toward the mounting plate 723. The inclination angle θ° of the inclined surface 724 is 3° to 8°.

The pedestal 721 is fixed to the lateral plate 681 of the pressing rail 68 with bolts 725, and the mounting plate 723 is fixed to the lower surface of the tip rail 605 with bolts 726. The pressing rail 68, the tip rail 605, and the upper front rail 601 are fixed by the first connecting member 72. Further, since it has the inclined surface 724, the lubricating oil does not collect on the lower side of the support plate 722.

(5-2) Second connection member 76
Next, the second connecting member 76 that connects the pressing rail 68 and the reversing rail 64 will be described with reference to FIGS. 3 and 4.

As shown in FIGS. 3 and 4, the second connecting member 76 includes a contact member 761 formed by bending a metal plate into an L-shaped cross section, and a rectangular plate provided on the outer surface of the contact member 761. It is composed of a connection plate 762.

The L-shaped contact member 761 has a vertical plate 761a and a horizontal plate 761b. The vertical plate 761a is fixed to the semicircular plate 641 with bolts 763, and the horizontal plate 761b is attached to the outer peripheral plate 643 of the reversing rail 64. It is fixed.

Half of the rectangular connecting plate 762 is fixed to the tip of the vertical plate 682 of the pressing rail 68, and the other half is connected to the vertical plate 761a of the contact member 761 and the vertical plate 741a of the upper split plate 741 described later. Are fixed with bolts 763. An inclined surface 764 is formed on the lower side of the connection plate 762. The inclined surface 764 is formed so that the vertical dimension of the connection plate 762 increases as it goes from the reversing rail 64 to the pressing rail 68. The inclination angle of the inclined surface 764 is 3° to 8°.

The pressing rail 68 and the reversing rail 64 are connected by the second connecting member 76. Further, since the inclined surface 764 is inclined, the lubricating oil flows downward along this portion, and the oil does not collect on the lower side of the connection plate 762.

(5-3) Third connection member 70
The third connecting member 70 that connects the right side surface of the upper rear rail 621 and the vertical plate 682 of the pressing rail 68 will be described with reference to FIGS. 3 and 4.

As shown in FIGS. 3 and 4, the third connecting member 70 is formed of a rectangular vertical plate 701 and a lower holding member 702 having an L-shaped cross section. The vertical plate 701 connects the right side surface of the upper rear rail main body 623 of the upper rear rail 621 and the vertical plate 682 of the pressing rail 68. The vertical portion 702a of the lower holding member 702 having an L-shaped cross section is fixed to the vertical plate 701 by the bolt 703, and the horizontal plate portion 702b is fixed to the lower surface of the upper rear rail body 623 by the bolt 704. By this third connecting member 70, the pressing rail 68 and the upper rear rail 621 are fixed in parallel at a predetermined interval. A plurality of third connecting members 70 are provided on the right side surface of the upper rear rail 621 and the pressing rail 68 at regular intervals.

(5-4) Fourth connection member 74
Next, the fourth connecting member 74 that connects the reverse rail 64 and the upper rear rail 621 will be described with reference to FIGS. 3 and 4.

As shown in FIGS. 3 and 4, the fourth connecting member 74 includes an upper split plate 741 formed by bending a metal plate into an L-shaped cross section and a lower split plate 742 formed by bending a metal plate into an L-shaped cross section. Have.

The upper split plate 741 has a vertical plate 741a and a horizontal plate 741b. The vertical plate 741a is fixed to the right side surface of the semicircular plate 641, and the horizontal plate 741b is fixed to the inner peripheral plate 642 at the upper end of the reversing rail 64. The upper portion of the vertical plate 741a is covered with the connection plate 762.

The lower split plate 742 includes a vertical plate 742a, a horizontal plate 742b, and an extending portion 743 extending from the vertical plate 742a. The lateral plate 742b is fixed to the inner peripheral plate 642 below the upper split plate 741 with a bolt 744, and the extending portion 743 is fixed to the right side surface of the upper rear rail body 623 of the upper rear rail 621.

(6) Effects According to the present embodiment, since the inclined surface 724 is formed on the lower side of the support plate 722 of the first connecting member 72, even if the lubricating oil drips from the step chain 28 of the step 30, it will be inclined. Lubricating oil does not collect in this portion, and flows downward in order, so that a large amount of lubricating oil does not adhere to the step 30 on the return path.

Further, since the inclined surface 764 is formed on the lower side of the connecting plate 762 of the second connecting member 76 that connects the pressing rail 68 and the reversing rail 64, the lubricating oil dripping from the step chain 28 collects on the lower side of the connecting plate 762. It flows in sequence without any flow, and a large amount of lubricating oil does not adhere to the step 30 on the return path.

Further, since the upper portion of the vertical plate 741a of the upper split plate 741 of the fourth connection member 74 is covered with the connection plate 762, oil does not adhere to the upper side of the vertical plate 741a.

(7) Modification Example In the above embodiment, the upper rear rail 621 and the pressing rail 68 are connected by the third connecting member 70, but a connecting structure having another structure may be used.

Further, although the upper rear rail 621 and the reversing rail 64 are connected by the fourth connecting member 74 in the above-described embodiment, other connecting structures may be used.

In the above-described embodiment, the step 30 of the escalator 10 is described as an example, but instead of this, the step 30 of the moving sidewalk (also referred to as “step”) may be applied.

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 their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the scope equivalent thereto.

10... Escalator, 24... Drive sprocket, 28... Step chain, 30... Step, 60... Front rail, 62... Rear rail, 64... Inversion rail, 68... -Presser rail, 70... Third connecting member, 72... First connecting member, 74... Fourth connecting member, 76... Second connecting member, 301... Front wheel, 302... Rear wheel, 724... Inclined surface, 764... Inclined surface

The first embodiment of the present invention is a pair of left and right front wheels rotatably provided on each of a plurality of steps running in the front-rear direction, and a pair of left and right rear wheels rotatably provided on each step. And a pair of left and right endless step chains that respectively connect the pair of left and right front wheels, a drive sprocket that rotates while the front wheels are engaged and turns the steps upside down, and a forward path for the front wheels to travel. Side upper front rail, the forward side upper rear rail for the rear wheels to travel, the return side lower front rail for the front wheels to travel, and the return side lower for the rear wheels to travel. A rear rail, a pressing rail that is provided in parallel above the upper rear rail and presses an upper portion of the rear wheel, and a semi-circular inversion rail that connects the upper rear rail and the lower rear rail. A first connecting member that supports the upper front rail is erected on an upper surface of the pressing rail, and the first connecting member is a pedestal attached to the pressing rail and a support plate erected from the pedestal. And a top plate of the support plate, which is provided at a position displaced in the front-rear direction from the pedestal, and which has a mounting plate for mounting the upper front rail, The lower surface is a passenger conveyor that is composed of a first inclined surface that inclines downward from the mounting plate side toward the pedestal side .

The second embodiment of the present invention is a pair of left and right front wheels rotatably provided on each of a plurality of steps running in the front-rear direction, and a pair of left and right rear wheels rotatably provided on each of the steps. And a pair of left and right endless step chains that respectively connect the pair of left and right front wheels, a drive sprocket that rotates while the front wheels are engaged, and turns the steps upside down, and a forward path for the front wheels to travel. Side upper front rail, a forward side upper rear rail for the rear wheels to travel, a return side lower front rail for the front wheels to travel, and a return side lower for the rear wheels to travel. A rear rail, a pressing rail that is provided along the upper side of the upper rear rail and presses the upper portion of the rear wheel, and a semi-circular inversion rail that connects the upper rear rail and the lower rear rail. A second connecting member that connects the pressing rail and the reversing rail, and a fourth connecting member that connects the reversing rail and the upper rear rail, wherein the second connecting member is the pressing rail and the reversing rail. Including a connection plate for connecting, the rear side of the connection plate is fixed while covering the front end of the vertical plate of the pressing rail, and the remaining front side while covering the second connection member and the fourth connection member. It is a passenger conveyor comprised of a second inclined surface that inclines downward on the lower surface on the front side of the connection plate .

Claims (10)

A pair of left and right front wheels rotatably provided on the steps running in the front-rear direction,
A pair of left and right rear wheels rotatably provided on each step,
A pair of left and right endless step chains respectively connecting the pair of left and right front wheels,
A drive sprocket that rotates while the front wheels are engaged, and reverses the steps upside down;
An upper front rail on the outward path for the front wheels to travel,
An upper rear rail on the outward path for the rear wheels to travel,
A lower front rail on the return path for the front wheels to travel,
A lower rear rail on the return side for the rear wheels to travel,
A pressing rail that is provided in parallel above the upper rear rail and presses the upper portion of the rear wheel,
A semi-circular inversion rail that connects the upper rear rail and the lower rear rail,
Have
On the upper surface of the pressing rail, a first connecting member that supports the upper front rail is erected,
A first inclined surface is formed at a lower portion of the first connecting member to allow oil to flow downward,
Passenger conveyor. The first connecting member is a pedestal attached to the pressing rail,
A support plate erected from the pedestal,
A mounting plate, which is an upper end portion of the support plate, is provided at a position displaced in the front-rear direction from the pedestal, and for mounting the upper front rail,
Have
The first inclined surface is formed on the lower surface of the support plate,
The passenger conveyor according to claim 1. A pair of left and right front wheels rotatably provided on each step,
A pair of left and right rear wheels rotatably provided on each step,
A pair of left and right endless step chains respectively connecting the pair of left and right front wheels,
A drive sprocket that rotates while the front wheels are engaged, and reverses the steps upside down;
An upper front rail on the outward path for the front wheels to travel,
An upper rear rail on the outward path for the rear wheels to travel,
A lower front rail on the return path for the front wheels to travel,
A lower rear rail on the return side for the rear wheels to travel,
A pressing rail provided along the upper rear rail to press the upper portion of the rear wheel,
A semi-circular inversion rail that connects the upper rear rail and the lower rear rail,
Have
A second connecting member for connecting the pressing rail and the reversing rail is provided,
The second connecting member has a second inclined surface for allowing oil to flow downward,
Passenger conveyor. The second connecting member includes a connecting plate connecting the pressing rail and the reversing rail,
The connection plate has a rectangular shape, and a lower portion of the connection plate is obliquely cut out to form the second inclined surface,
The passenger conveyor according to claim 3. A third connecting member is provided for connecting the upper rear rail and the pressing rail,
The passenger conveyor according to claim 1 or 3. A fourth connecting member is provided that connects the tip of the upper rear rail and the reverse rail.
The passenger conveyor according to claim 1 or 3. A fourth connecting member that connects the tip of the upper rear rail and the reversing rail is provided, and the connecting plate covers an upper portion of the fourth connecting member.
The passenger conveyor according to claim 4. The upper surface of the tip of the upper front rail is inclined downward as it goes forward.
The passenger conveyor according to claim 1 or 3. The tip of the upper front rail has a narrow width in the left-right direction,
The passenger conveyor according to claim 1 or 3. The passenger conveyor is an escalator or a moving walkway,
The passenger conveyor according to claim 1 or 3.

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