JP2000191259A - Escalator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen the thickness in the vertical direction of an escalator device. SOLUTION: Instead of a footboard fitted with a cleat riser, a pallet 9 in a flat plate form is used as a footboard of an escalator device. Guide rollers 16 and 17 for controlling the attitude are installed on both sides of the pallet 9, and the attitude of each pallet 9 is controlled on the basis of the positional relationship of guide rails 19 and 20 which are in engagement with the guide rollers 16 and 17. In the turn-back division of the over-story floor and under- story floor, the pallet advancing direction is inverted without upsetting the pallet 9 upside down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator device, and more particularly, to a step circulation system and mechanism.

[0002]

2. Description of the Related Art FIG. 22 is a partially cutaway perspective view showing the structure of a conventional escalator apparatus, and FIG. 23 is a schematic side view thereof. The electric motor 102 in the upper machine room 108a rotates the step drive sprocket 109a via the reduction gear 101 and the drive chain 103 connected thereto. An endless step chain 105 is stretched between the step driving sprocket 109a and the step driving sprocket 109b in the lower machine room 108b. On the other hand, a roller 110 is rotatably provided on a step 104 on which a passenger rides.
It is driven along 6. In addition, the moving handrail drive wheel (not shown) is rotated from the step driving sprocket 109a via a moving handrail drive chain (not shown), and the moving handrail 107 and the step 104 are driven in synchronization.

[0003]

In order to circulate the steps 104, the steps 104 are driven by a step driving sprocket 109.
a, 109b to be wound and folded back, at which time the crest riser 1 forms a step side surface between adjacent steps
The radius R of the folded circular orbit must be sufficiently large so that 11 does not interfere (see FIG. 23).

[0004] Accordingly, the machine rooms 108a and 108b need to have a depth h corresponding thereto, and occupy a large space.
Therefore, it is necessary to increase the floor thickness on the building side in order to embed the machine room. In addition, an escalator device cannot be additionally introduced into an existing building having a small floor thickness for the same reason as described above. Further, not only the machine room portion but also the slope section becomes thick, and the slope section occupies a large space.

The present invention has been made in view of the above circumstances, and has as its object to provide an escalator device capable of reducing the vertical thickness of the entire device.

[0006]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides an escalator for transporting passengers between upper and lower floors of a building by a plurality of pallets circulated and driven along an endless track. The present invention provides an escalator device, wherein each of the pallets is formed in a flat plate shape, and a mechanism for changing a moving direction of the pallets without reversing a posture of the pallets in a turning section of the track.

Further, the present invention relates to an escalator device for transporting passengers between upper and lower floors of a building, wherein the pallet is provided endlessly and circulated and driven between the upper and lower floors, and Provided endlessly between the first and second guide rollers provided and the upper and lower floors,
First and second guide means for guiding the first and second guide rollers along first and second circulation paths and for determining the attitude of each pallet; and the first and second circulation means The route is a turn around,
An escalator device is provided, wherein the pallets are arranged in a positional relationship such that projections on a vertical plane from the left and right directions cross each other, and each of the pallets circulates while the tread surface always faces upward.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

[Pallet Circulation System] First, the pallet circulation system in the escalator device according to the present invention will be described with reference to FIGS. 1 to 3 which schematically show the operation of a pallet.

In the following description, the upper side of the track 1 (the path from the lower left to the upper right in FIG. 1) is referred to as “outbound path (2)”, and the lower side (the path from the upper right to the lower left in FIG. 1) is referred to as the “return path (3)”. ) ". In the following, directions are defined as shown by arrows in FIG. In other words, based on when the passenger stands on the floor of the lower floor and looks at the upper floor, the direction to the upper floor is "front side", the opposite direction is "rear side", and the left and right direction is "right side"" The left side is referred to as “upper side”, the upper side in the vertical direction is referred to as “upper side”, and the reverse is referred to as “lower side”.

As shown in FIG. 1, pallets 9 for carrying passengers have a flat plate shape, and are arranged endlessly along the track 1 at a constant pitch. Pallet 9
The passenger is transported based on the circulation principle described below.

That is, first, at the landing 6 of the lower floor 5, there is no level difference between each of the plurality of adjacent pallets 9,. As the pallet 9 moves along the curved section where the pallet 9 shifts to the inclined section of the outward path 2, the step between the pallets 9 and 9 increases, forming a staircase, and ascending. At this time, individual pallets 9, ...,
9 moves in a state where the posture is maintained so that the upper surface, that is, the tread surface is horizontal. When the pallets 9 approach the upper floor 4 and enter a curved section where they transition to a horizontal section, the steps between the individual pallets 9 are reduced, and a plurality of pallets 9,. Level again, and the passenger 8 gets off here.

Thereafter, the pallet 9 is moved from the outbound route 2 to the inbound route 3
Transition to. FIGS. 2A to 2F sequentially illustrate the movement direction inversion operations of the two adjacent pallets 9 on the upper floor 4. In the following description, a preceding pallet 9 (a pallet with hatching) is referred to as a “front pallet 10”, and a pallet 9 following the front pallet 10 adjacent to the front pallet 10 (a pallet without hatching) is referred to as a “post pallet”. 11 ". In addition,
2A to 2F, the pallet 9 that precedes the front pallet 10 is indicated by a broken line.

In the horizontal section, the front pallet 10 and the rear pallet 11 adjacent to each other are both in a horizontal state and have no level difference from each other (see FIG. 2A).
After that, when the front pallet 10 enters the turnaround section,
The rear side of the front pallet 10 falls and starts to incline (FIG. 2).
(B)).

Further, when the front pallet 10 and the rear pallet 11 advance together, and the front pallet 10 is further inclined and the gap 12 with the rear pallet 11 is sufficiently opened (see FIG. 2C), The moving speed of the pallet 10 in the horizontal direction decreases, and the moving speed in the downward direction increases instead (see FIG. 2D).

When the front pallet 10 moves to the return path along the semicircular curved portion of the return operation section, the horizontal movement direction of the front pallet 10 is reversed, and the front pallet 1
0 moves backward (see FIG. 2E). Then, the front pallet 10 returns to the horizontal posture again, and comes in front of the further preceding pallet indicated by the broken line (rear in the traveling direction) (rightward in FIG. 2). During the reversing operation of the front pallet 10, the tread surface of the front pallet 10 remains facing upward. At this time, since the front pallet 10 is already located sufficiently below the rear pallet 11, both pallets 1
0 and 11 do not interfere.

The front pallet 10 is guided to the lower floor through the return track (see FIG. 2 (f)). As shown in FIG. 1, the pallet passing through the return path 3 travels in a state where its tread surface is inclined at the same angle as the inclination angle of the return path 3 of the track.

Next, the operation of folding the pallet on the lower floor 5 will be described with reference to FIG. In FIG. 3A, the pallet is located on the return path 3, and at this time, both pallets are moving rearward (leftward in FIG. 3).

As the pallets 10 and 11 further advance, the front pallet 10 first tilts so that its rear side sinks (see FIG. 3B). Eventually, the rear pallet 11 also inclines (see FIG. 3C), and the front pallet 10 reaches the semicircular curved portion of the turn-back section of the track and starts to rise (see FIG. 3D).

When the pallets 10 and 11 further move, the horizontal movement direction of the front pallet 10 is reversed, and the front pallet 10 rises while moving to the front side (see FIG. 3E). At this time, the front pallet 10 and the rear pallet 11
Do not interfere with each other because they move in a posture inclined with respect to the horizontal plane.

Eventually, the front pallet 10 passes through the semicircular curved portion of the track while shifting from the inclined state to the horizontal state,
It moves to the straight section (horizontal section) of the outward path 2 (FIG. 3)
(F)).

When the pallet further moves, the pallet approaches the inclined section of the outward path 2 and the front pallet 10 rises relatively to the rear pallet 11 to form a stair (see FIG. 3 (g) and FIG. 1).

The above operations occur continuously, and the pallet circulates. When the passenger is transported from the upper floor to the lower floor, the operation is performed in a direction opposite to the above.

[Configuration of Pallet and Guide Rail] A plurality of mechanisms for realizing the above-mentioned circulation system will be described in order. First, the configuration of the pallet and the guide rail that determines its posture and movement path will be described with reference to FIGS.

FIG. 4 is a schematic perspective view of the pallet 9 and its accessories. The pallet 9 is formed of a substantially flat plate-like body, and the upper surface thereof is a tread surface 14. The pallet 9 has a shaft 15 projecting horizontally outward from both lateral sides thereof.
Is provided. A rear roller (guide roller) 16 is rotatably attached to the tip of each shaft 15. Each shaft 15 is provided with a bar 18 projecting obliquely upward and forward from an intermediate portion thereof, and a front roller 17 is rotatably attached to a tip of the bar 18.

FIGS. 5 and 6 are schematic perspective views of guide rails which are tracks for moving the pallet 9 along a main frame, that is, a truss (not shown). FIG. 5 is an upper floor of an escalator apparatus. FIG. 6 shows a guide rail of a lower floor portion of the escalator device.

The rear roller guide rail 19 and the front roller guide rail 20 each have a U-shaped cross section. The guide rail 19 for the rear roller is used for the pallet 9.
The front roller guide rail 20 opens in a direction opposite to the rear roller guide rail 19. The front roller guide rail 20 has a U-shaped cross section in which the lower end surface is removed from the U-shaped cross section at the inclined portion of the outward path.

Normally, the guide rail 19 for the rear roller is used.
In order to prevent interference with a step chain driving sprocket for driving a pallet, as shown in FIGS. 8, 9 and 11, a curved portion of a turn-back section is removed (although it is not always necessary to remove the curved portion). In the section, the rear roller 16 will be guided by a chain moving along the sprocket. However, in FIGS. 5 and 6, in order to facilitate understanding of the configuration of the present embodiment,
The rear roller guide rail 19 is shown in a state in which the curved portion of the folded section is not removed.

The front roller guide rails 20 are always arranged vertically above the rear roller guide rails 19 in all sections of the outward return paths 2 and 3, and are respectively located at the upper floor portion and the lower floor portion. Is bent 180 degrees and folded to form an endless track.

In both the upper floor section and the lower floor section, the folded curved portion (semicircular curved portion) of the rear roller guide rail 19 is the folded curved portion (semicircular curved portion) of the front roller guide rail 20. It is arranged more rearward than. The pallet 9 is moved so that the rear roller 16 rolls along the groove of the rear roller guide rail 19 and the front roller 17 rolls along the groove of the front roller guide rail 20.
Are mounted on the respective guide rails in a rolling manner.

At this time, the guide rails 20 for the front roller and the guide rail 19 for the rear roller are provided such that their respective relative positions have a relationship as described below.

That is, the horizontal section 23 of the outward path on the upper floor side
In the horizontal section 30 of the outward route on the lower floor side, the relative distance in the vertical direction between the front roller guide rail 20 and the rear roller guide rail 19 is determined by the front roller when the tread surface 14 of the pallet 9 is horizontal. It is arranged so as to be equal in height difference between the rear roller 17 and the rear roller 16.

In a transition section (curved section) in which a transition is made from a horizontal section to an inclined section on the outward path, the relative distance between the front roller guide rail 20 and the rear roller guide rail 19 (the relative distance referred to herein is the vertical direction). The curve shape of the rail is changed so that the shortest distance (not the shortest distance) is gradually shortened.

In the inclined section 24, the relative distance between the front roller guide rail 20 and the rear roller guide rail 19 is set so that the tread surface 14 is horizontal.

In the upper floor, as shown in FIG. 5, the front roller guide rails 20 are bent upward one end before approaching the curved part where the front roller 2 returns to the return path 3, and then the pallet is inclined. A curved portion 25 is formed, and then a curved trajectory leading downward to the return path 3 is formed. That is, the distance between the front roller guide rail 20 and the rear roller guide rail 19 in the inclined guide curve portion 25 of the front roller guide rail 20 continuously changes (gradually increases).

In the lower floor, as shown in FIG. 6, the front roller guide rail 20 bends upward in the backward section to form a pallet inclination guide curve portion 32, and then becomes horizontal. After forming the lower-floor return-way side horizontal section 31, it turns upward and forms a semicircular curved trajectory to the outward path 2.

Further, the front roller guide rail 20 includes
The upper floor has a slit 21a as shown in FIG. 5, and the lower floor has a slit 21b as shown in FIG. When the guide rails 19 and 20 are viewed from the side (projection to the vertical plane from the left and right directions), the slits 21a and 21b form a rear roller at the intersection of the rear roller guide rail 19 and the front roller guide rail 20. 16
Is provided on the front roller guide rail 20 so as to overlap the movement locus of the shaft 15. And these slits 2
The width of 1a, 21b is set to be larger than the shaft 15 and sufficiently smaller than the diameter of the front roller 17.

Next, the attitude control of the pallet 9 based on the cooperation between the guide rails 19 and 20 and the front and rear rollers 16 and 17 will be described in detail.

First, pay attention to the pallet 9 in the inclined section of the outward path 2 when the escalator device is driven in the ascending direction (see FIG. 5). In this section, the load of the pallet 9 is received by the rear roller 16, and the moment received by the pallet 9 is received by the front roller 17. In other words, the pallet has the front roller 17 as a fulcrum with the rear roller 16 as a fulcrum, and the step surface 14 on the rear side. Therefore, the load applied to the step surface 14 becomes a moment with the rear roller 16 as a fulcrum. The roller 17 is pushed upward. The front roller 17 is supported by the front roller guide rail 20 from above and receives the above-mentioned moment.

In this section, the distance between the front roller 17 and the rear roller 16 in the direction perpendicular to the tread surface 14 is the same as the distance between the front roller guide rail 20 and the rear roller guide rail 19 in the vertical direction. Therefore, the pallet 9 rises along the guide rail while keeping the step surface 14 horizontal.

The pallet 9 transitions from inclined movement to horizontal movement according to the curved shape of the guide rails 19 and 20 near the upper floor. At the landing 7 on the upper floor, a horizontal plane is formed by the plurality of pallets 9 so that passengers can easily get on and off.

The pallet 9 moving horizontally in the landing 7
Eventually, it sinks below the comb floor plate 22a, is shut off from the outside, and is guided to a machine room (not shown).

Thereafter, the front roller 17 rises along the pallet inclination guide curve portion 25 of the front roller guide rail 20, so that the pallet 9 is inclined so as to sink the rear side. Note that the posture at this time corresponds to (b) to (c) of FIG.

The pallet 9 further advances, and the rear roller 1
6 shifts to the semicircular curved portion of the rear roller guide rail 19, and at the same time, the front roller 17 shifts to the semicircular curved portion of the front roller guide rail 20, so that the entire pallet 9 moves downward ( It starts to move in the Y negative direction) and sinks (corresponding to FIG. 2D).

When the rear roller 16 and the front roller 17 move along the semicircular curved portions of the guide rails 19 and 20, the pallet 9 changes its moving direction to the X negative direction (see FIG. 2 (e)). Equivalent).

Near the position where the moving direction of the pallet 9 is reversed, the shaft 15 supporting the rear roller 16 passes through the slit 21a of the front roller guide rail 20 and crosses the front roller guide rail 20. Then pallet 9
Is moved, and the front roller 17 is moved to the front roller guide rail 2.
When rolling on the return path 0, the width of the slit 21a is sufficiently smaller than the diameter of the front roller 17, so that the front roller 17 passes over the slit 21a without dropping off from the front roller guide rail 20. And pallet 9
Is guided to the return path 3 and circulated back.

Next, the direction changing operation of the pallet in the lower floor will be described with reference to FIGS.

The front roller 17 of the pallet 9 that has moved to the lower floor through the return path 3 is moved by the pallet inclination guiding curve portion 32.
, The front roller 17 rises, so that the tread surface 14 of the pallet 9 is inclined such that the rear side sinks. This state corresponds to the state of the front pallet 10 in FIG. Thereafter, the pallet 9 moves in the negative X direction while maintaining a constant vertical distance between the front roller 17 and the rear roller 16 in the lower floor return section horizontal section 31 (corresponding to FIG. 3C).

When the pallet 9 further advances, the front roller 1
The rear roller 7 and the rear roller 16 reach the semicircular curved portions of the guide rails 19 and 20, and the pallet 9 rises in an inclined posture (corresponding to FIGS. 3D to 3E). And pallet 9
Starts to move in the X positive direction by reversing the horizontal movement direction. At this time, the adjacent pallets are both tilted,
Do not interfere with each other.

In the process of passing through the semicircular curved portion, the front roller 17 rolls along the front roller guide rail 20 and gets over the slit 21b. Front roller 17
In the process in which the pallet 9 comes out of the semi-circular curved portion of the front roller guide rail 20, the pallet 9 in the inclined posture gradually shifts to the horizontal posture.

The shaft 15 passes through the slit 21b after the pallet 9 is further moved. When the pallet 9 further moves forward, the pallet 9 is exposed from the comb floor plate 22b of the lower floor to form a horizontal portion for passengers to get on and off.

The pallet 9 moves along the guide rails 19 and 20 while maintaining the horizontal position by the same operation as described above from the horizontal portion to the inclined portion of the outward path, and the individual pallets 9 move along the step surface. Eggplant

As described above, in the present embodiment, the two guide rollers 17 and 16 are provided at different positions with respect to the pallet 9, and the respective guide rollers 17 and 16 are provided.
Is determined by the two guide rails 19 and 20 arranged in a predetermined positional relationship, thereby controlling the attitude of the pallet 9. Guide rail 1
By properly determining the relative positional relationship between 9 and 20,
(1) In each section of the outward path, the pallet 9 can be moved while the tread surface 14 of the pallet 9 is kept horizontal. (2) In the pallet turning section at the end of the truss, the pallet 9 can be moved without turning over the pallet 9 upside down. Is appropriately inclined, the moving direction of the pallet 9 can be continuously reversed while avoiding interference between adjacent pallets. For this reason, it is possible to reduce the space required when folding the flat plate-shaped pallet, and to reduce the size of the machine room and the thickness of the truss at the inclined portion.

The above is the basic operation principle of the escalator device according to the present invention. Hereinafter, details of the escalator device according to the present invention will be described in more detail.

[Pallet Driving Mechanism] First, the pallet driving mechanism will be described with reference to FIG. 7 and FIG.

FIG. 7 is an enlarged sectional view showing the guide rail 19 for the rear roller. A rear roller 16 is rotatably mounted on a shaft of the shaft 15 projecting from a pallet (not shown) via a bearing 38. Rear roller 16
Is engaged with the groove 36 of the guide rail 19 for the rear roller.

The chain (step chain) 33 is configured by alternately connecting chain links 34 and tune pins 35. The chain 33 is the guide rail 1 for the rear roller.
9 are provided endlessly along the inside of the member 9.

The pallet 9 not shown in FIG.
It is connected to the chain 33 via the shaft 15 and the connector 39. The connector 39 connects the shaft 15 and the chain 33 rotatably and easily. The chain 33 includes a plurality of pallets 9,.
Are connected at regular intervals. That is, the pallets 9 are arranged in an endless belt shape along the rear roller guide rail 19. A plurality of auxiliary wheels 37 are provided at intervals inside the curve in a section where the rear roller guide rail 19 is bent (for example, a transition section from a skew section to a horizontal section).

FIG. 8 is a perspective view schematically showing a drive mechanism of the chain 33 in the machine room on the upper floor side. As described above, the guide rail 19 for the rear roller ends before the sprocket 40, but the chain 33
Extends further than the end of the rear roller guide rail 19 and is hung on the sprocket 40.

The sprocket 40 is rotatably disposed in a truss (not shown) by a bearing (not shown). The pulley 40 (the sprocket 40 in this example) has
The pulley 41a (the timing pulley 41a in this example) is coaxially fixed.

On the other hand, a truss (not shown)
The motor 44 provided with is fixed. A drive shaft of the motor 44 is supported by a pair of bearings 46, 46, and a pulley 41b (a timing pulley 41b in this example) is fixed to a tip end thereof. A belt 42 is wound around the pulleys 41a and 41b.

Accordingly, when the motor 44 rotates, its driving force is reduced by the reduction gear 43, the pulley 41b, the belt 42, the pulley 4
1a to rotate the sprocket 40.
Then, the sprocket 40 pulls the chain 33 and moves it along the rear roller guide rail 19. The chain 33 further pulls the shaft 15 of each pallet 9, and the rear roller 16 rolls in the guide rail while engaging with the groove 36 of the rear roller guide rail 19, so that the pallet 9 moves.

In a section where the guide rail is curved in the transition section between the inclined section and the horizontal section, the chain 33 is guided in contact with the auxiliary wheel 37, and the chain 33 directly interferes with the inner wall of the rear roller guide rail 19. To prevent Therefore, generation of noise, protection of the guide rail, and generation of vibration due to pulsation of the chain can be suppressed.

The chain / sprocket may be changed to a pulley / belt or the pulley 4
A drive system may be configured by connecting a direct drive motor or the like directly to the sprocket instead of the belt 1, the belt 42, and the pulley 41 a.

[Pallet Feeding Mechanism in Returning Section] Next, a constant-speed feeding mechanism for the pallet 9 in the returning section will be described with reference to FIGS. FIG. 9 is a schematic perspective view of the machine room on the upper floor portion of the escalator device. FIG. 10 is a view of a main part near the front roller guide rail 20 shown in FIG. In addition, among the members shown in FIG.
The same reference numerals as in FIG. 8 denote the same members as those in FIG. 8, and a redundant description will be omitted.

As shown in FIG. 9, the pulley 47 is
The drive shaft 45 (the drive shaft 4 in FIG.
5 is omitted). The pulley 47 is connected via a belt 48 to a pulley 51 forming a part of a mechanism for controlling the moving speed of the front roller. The pulley 51 is of a two-stage type (having a portion for hanging the belt 48 and a portion for hanging the belt 51 below), and the belt 48 is wound around a portion of the pulley 51 that is hidden by the front roller guide rail 20 and cannot be seen. It is hung.

The pulley 51 is connected to the front roller guide rail 2.
It is provided at a position on the front side of the sprocket 40 in the 0 semicircular curve section. In addition, a plurality of copying pulleys 4
9,..., 49 are provided along the inside of the semicircular curved section of the front roller guide rail 20.

The pulley 51 and the copying pulleys 49,..., 49 have a projection belt 5 having projections provided on the outside at regular intervals.
It is multiplied by zero. In this case, the belt 50 with projections is guided in a curved curve by the copying pulley 49 such that the belt peripheral surface of the belt 50 with projections is along the track center line of the guide rail 20 for the front roller.

As shown in FIG. 10, the protruding belt 50 is disposed in a space between the inner side surface of the front roller guide rail 20 and the area where the front roller 17 passes. on the other hand,
An engaging element 52 projecting toward the pallet 9 is provided on the front roller 17 of the pallet. This engaging element 52
Is provided coaxially with the front roller 17. Engaging element 52
Can be provided, for example, by extending the rotation axis of the front roller 17. The engaging element 52 is provided on the protruding belt 5 in the semicircular curved section of the front roller guide rail 20.
It is designed to engage between the 0 projections.

The deceleration rate of the pulley transmission system including the pulley 47 and the pulley 51 is set such that the moving speed of the projecting belt 50 is lower than the moving speed of the chain 33.

When the motor 44 is driven, the sprocket 4
0 is rotated and the chain 33 is driven. At this time, the pulley 51 is simultaneously rotated via the pulley 47 and the belt 48, and the pulley 51 rotates the belt 50 with the projection.

When the pallet 9 passes through the outward path 2 and comes to the turn-back section from the direction A, first, the front roller 17 moves along the front roller guide rail 20 and eventually reaches the belt 50 with projections. . At this time, the rear roller 16
It is still in the horizontal section of the rear roller guide rail 19.

When the pallet 9 further moves forward, the engaging element 52 of the front roller 17 engages between the projections of the belt 50 with the projection, and the speed of the belt 50 with the projection is reduced to the set speed. Through the semicircular curved section of Then, since the moving speed of the rear roller 16 becomes relatively faster than the front roller 17, the rear roller 16 is wound on the sprocket 40 before the front roller 17 and passes through a semicircular curved path. . This operation allows the rear roller 16
Is further lower than the vertical height position of the front roller 17, so that the step surface 14 of the pallet 9 is inclined backward. Therefore, the pallet 9 sinks from behind,
The entire pallet 9 descends and turns back from the outbound path to the return path.
The pulley 51 protruding from the front roller guide rail 20 toward the pallet movement path does not interfere with the pallet 9 because it is located forward of the sprocket 40.

The operation in the opposite direction to the above, that is, the pallet 9
Will be described below from the lower return path to the upper outward path.

When the pallet 9 is moving in the direction B on the backward path, which is the lower track, first, the front roller 17 reaches the belt 50 with the protrusion, and the front roller 17 follows the curved section of the guide rail 20 for the front roller. Rise. At this time, the rear roller 16 is still at the horizontal portion of the rear roller guide rail 19.

When the pallet 9 further advances, the rear roller 16 is wound around the sprocket 40 and starts to rise. In this case, the front roller 1 is
The moving speed of the roller 7 is maintained lower than the moving speed of the rear roller 16, and the rear roller 16 passes the curved portion before the front roller 17. That is, the front roller 17 and the rear roller 16
Moves through the semi-circular curved path while the rear roller 16 catches up with the front roller 17 that has risen first.

The pallet 9 is tilted so that its rear portion is lowered, then rises from the lower return route to the upper forward route, and after the horizontal moving direction is reversed, the tread 14 is restored to the horizontal position and the forward route is restored. Turn back to

In FIG. 9, the guide rail 20 for the front roller has a slope guiding curve portion 2 as shown in FIG.
5 is not provided, but of course, it is also possible to provide the inclination guidance curve part 25.

In order to prevent this mechanism from being locked,
It is preferable that the protrusions of the belt with protrusions 50 have appropriate flexibility. That is, when the rear roller 16 is too advanced with respect to the front roller 17, the engaging element 52 is
It is preferable to be able to get over the zero protrusion. In addition, from the same viewpoint, the copying roller 49 may be used.
It is preferable that the elastic member can be appropriately elastically displaced in the radial direction of the semicircular curved portion of the front roller guide rail 20.

Next, the pallet feed mechanism on the side where there is no drive source (the machine room on the lower floor side in this example) is shown in FIG.
This will be described with reference to FIG. FIG. 11 is a view seen from the side opposite to the pallet passage side, and FIG. 12 is a view seen from the pallet passage side. As shown in FIGS. 11 and 12, the rear roller guide rail 19 ends before the driven sprocket 53, and the chain 33 further extends from the rear roller guide rail 19 and is hung on the driven sprocket 53.

A pulley 54a (for a belt) is coaxially fixed to the driven sprocket 53 on the side opposite to the pallet passage. Further, the semi-circular curved portion of the front roller guide rail 20 has a configuration similar to that described with reference to FIG. 9 (a pulley 59, a belt 57 with a projection, and a plurality of copying pulleys 58). A mechanism is provided for limiting the moving speed. The pulley 54b is connected to the pulley 59 via a rotation shaft 56 extending in the left-right direction. A belt 55a is wound around the pulley 54a and the pulley 54b. Rotating shaft 56
Is disposed vertically above the position where the front roller 17 passes on the return path side of the front roller guide rail 20. Note that the projection belt 57 shown in FIGS. 11 and 12 is different from the projection belt 50 shown in FIG.
It is provided only in the lower half of the semicircular curved portion of the front roller guide rail 20.

The chain 33 is circulated and driven by a motor in the other machine room not shown in FIG. 11 (for example, the machine room shown in FIG. 9) as a drive source.
3 is driven to rotate by the chain 33. This rotational force is sequentially transmitted to the pulley 54a, the belt 55, the pulley 54b, and the rotating shaft 56 to rotate the pulley 59, and finally rotate the belt 57 with projections.

Now, assuming that the pallet 9 moves in the return path from the direction C (see FIG. 11), the engaging element 52 of the front roller 17 of the pallet 9 returning from the return path first
The belt reaches the belt with projections 57. At this time, the front roller 17 of the pallet 9 is moved to the pallet inclination guiding curve portion 32.
After that, the pallet 9 has already moved in a posture inclined backward.

When the pallet 9 further moves, the engaging member 52 of the front roller 17 is engaged by the belt 57 with the projection. Then, the front roller 17 is moved by the belt 57 with the protrusion, and rises along the semicircular curved portion of the guide rail 20 for the front roller. On the other hand, the rear roller 16 is wound around the driven sprocket 53 and rises.

At this time, the movement speed of the front roller 17 is maintained lower than the movement speed of the rear roller 16 due to the action of the belt with projections 57. Therefore, while the posture of the pallet 9 is gradually restored to the horizontal state, the pallet 9 is lifted from the lower return path 3 to the upper outward path 2 and reverses its horizontal movement direction.

When the pallet comes in the direction opposite to the above, that is, when the pallet comes in the direction D (see FIG. 11) on the outward path, the pallet is folded down from the outward path to the return path by the reverse operation.

Since the belt 57 with the projection directly applies the driving force to the front roller 17 only in the pallet turnover section,
When moving the pallet 9 from the lower return path 3 to the upper outward path 2, the pallet 9 can be raised by raising both the front roller 17 and the rear roller 16.

Further, the belt with projections 57 is
7, the moving speed of the rear roller 16 is made slower than the moving speed of the rear roller 16, so that the height of the front roller 17 with respect to the rear roller 16 is changed so that the inclination angle of the tread is changed and the pallet is moved forward / backward.
The transition can be made between return trips.

As described above, according to the present embodiment, when the escalator device is constructed by circulating a pallet for carrying passengers, the space of the pallet turning track portion and the inclined portion can be reduced. The machine room can be small and the sloped truss thickness can be flat. Thus, there is no need to provide a large machine room storage space on the building side, so that the construction can be simplified and the construction period can be shortened, and the landscape can be improved.

[Modification of Feeding Mechanism] Next, a modification of the above-described feeding mechanism will be described with reference to FIG. FIG.
3 is a schematic perspective view of a part of the machine room at the end of the truss, as viewed from the direction opposite to the side where the pallets are located.

In the feed mechanism described in this modification, the transmission of the driving force from the driven sprocket 53 to the belt with projections 57 is different from that of the feed mechanism shown in FIG. The difference is that they are used, and the other configurations are substantially the same. In the modification shown in FIG. 13, the same parts as those in the embodiment shown in FIG. 11 are denoted by the same reference numerals, and the duplicate description will be omitted.

As shown in FIG. 13, the torque wire 60 is formed by covering a cable-like body (not shown) capable of transmitting a torsional force with a coating so as to be rotatable and bendable.

The driven sprocket 53 has a gear 112a
Are provided coaxially, and the gear 112 a rotates in conjunction with the driven sprocket 53. On the other hand, torque wire 6
A gear 112b is connected to the leading end of the 0-shaped cord (not shown), and the gear 112a and the gear 112b mesh with each other.

The other end of the torque wire 60 extends forward,
The feed mechanism driving pulley 59 is connected from the outside of the passage. The pitch circumference of the feed mechanism drive pulley 59 is smaller than the pitch circumference of the driven sprocket 53.

When the driven sprocket 53 rotates with the movement of the pallet 9, torque is transmitted to the other end of the torque wire 60 via the gears 112a, 112b, and a cord (not shown) inside the torque wire 60. You. This torque becomes a rotational force on the feed mechanism driving pulley 59 this time, and drives the feed mechanism 58. Since the gear 112b rotates in the opposite direction to the driven sprocket 53,
The feed mechanism driving pulley 59 connected to the end of the torque wire turned back by 180 degrees rotates in the same direction as the driven sprocket 53.

According to this modification, the structure of the feed mechanism can be simplified. Further, since the torque wire is freely bendable, the mounting place can be freely arranged, and the machine room on the side without the drive source can be further reduced.

[Safety Device on Side of Pallet] Next, a safety device for the moving passage will be described with reference to FIGS. 14 and 15. FIG. FIG. 14 is a schematic perspective view of the safety device, and FIG.
14 is an enlarged cross-sectional view of the guide rail portion in FIG. 14, FIG. 15A is a vertical cross-sectional view in a forward inclination section, and FIG. 15B is a vertical cross-sectional view in a return horizontal section. These drawings show the vicinity of the right guide rail portion with respect to the pallet.

In FIG. 14 and FIG. 15, the guide rails in the inclined section are separated from the guide rails 20 for the front roller and the guide rail 1 for the rear roller which are independent of each other.
9 shows an example in which an integrated rail 64 is used instead of 9.

As shown in FIG. 14, the integrated rail 64
Is provided on the truss on the side of the pallet. A guide rail portion 63 for a rear roller is formed below the inner rail 64 on the inner side in the cross section, and a guide rail portion 62 for the front roller is formed above the inner side.

The role of these guide rails is exactly the same as the front roller guide rail 20 and the rear roller guide rail 19 described above. Below the rear roller guide rail portion 63, there is a structural portion of an integrated rail 64 for supporting a downward load received from the rear roller 16, and above the front roller guide rail portion 62, the front roller 17 is provided.
Integrated rail 6 to support the upward load received from
There are four structural parts. On the pallet 9, a shaft 15 protrudes in a horizontal direction from a lower side of the side surface of the pallet 9. A distance d is provided between the tread surface 14 of the pallet 9 and the upper end of the shaft 15.

The side panel 61 extends vertically between the tread surface 14 and the integrated guide rail 64 along the side surface of the outward passage. The side panel 61
As shown in FIGS. 15 (a) and 15 (b), the lower end surface is always above the upper end of the shaft 15 and the tread surface 14 of the pallet 9 in all of the horizontal section and the inclined section of the outward path. It is arranged so as to be below the locus to be drawn.

Now, assuming that the pallet 9 is in the horizontal section of the lower floor (near the landing), the side panel 61 is located below the upper surface of the step surface 14 as shown in FIG. The guide rail portion 62 for the front roller and the guide rail portion 6 for the rear roller
Do not expose 3

As the pallet 9 further moves and shifts from the horizontal section to the inclined section, as shown in FIG. 15A, the vertical direction between the front roller guide rail section 62 and the rear roller guide rail section 63 is established. The relative distance h2 gradually shrinks and h
1, the front roller 17 is supported by the inclined portion having a positional relationship on the back side with respect to the paper surface of the guide rail portion 62 for the front roller, and the tread surface 14 is leveled due to the positional relationship between the two guide rail portions and the two rollers. Is moved while maintaining the posture.

In this case, since the side panel 61 and the integrated rail 64 are inclined at the same angle while maintaining a parallel relationship, the upper surface of the step surface is always lower than the lower surface of the side panel 61 in each section of each pallet. Is also located above, i.e. the integrated rail 61
Will not be exposed.

As described above, by installing the panel like a safety fence on the side of the moving path of the pallet, it is possible to prevent the mechanism such as the guide rail from being exposed on the moving path side. Therefore, it is possible to prevent passengers and goods from being caught in the mechanism, and to improve the safety of the escalator device.

[Safety Mechanism of Pallet Step] Next, a safety mechanism between adjacent pallets will be described with reference to FIGS. In order to realize this safety mechanism, in this example, a pallet 71 in which the above-described internal structure of the pallet 9 is changed is used. The other components of the escalator device may be the same. In FIGS. 16 to 18, the illustration of the front roller and the rear roller for controlling the pallet attitude and members supporting these rollers is omitted for simplification of the drawings.

Inside the pallet 71, a guide groove 65 having a width substantially equal to the lateral width (width in the left-right direction) is provided. In this guide groove 65, a shielding curtain 66 is provided so as to be slidable along the guide groove. The guide groove 65 is bent from a horizontal direction to a vertically downward direction behind the pallet 71, and opens to the lower rear side of the pallet 71.

The guide roller 72 is rotatably provided inside the bent portion of the guide groove 65. A constant tension spring (constant tension mechanism) 67 is provided inside the guide groove 65 on the opposite side (the front side of the pallet 71) from the opening. The constant tension spring 67 is connected to the front end of the shielding curtain 66, and applies a tension for constantly pulling the shielding curtain 66 forward.

On the front side of the pallet 71, there is provided a connector 69 for connecting / disconnecting a shield curtain (not shown) of another pallet (not shown) adjacent to the front of the pallet 71. Further, a slit-shaped hook groove 68 is provided at the tip of the shielding curtain 66.

The details of the coupler 69 shown in FIG. 16 will be described with reference to FIG. A lever 77 is mounted inside the pallet 71 so as to be swingable about a fulcrum 78. Guide rollers 76 are provided at both ends of the lever 77, respectively.
And a hook 79 are provided.

On the other hand, a guide rail 75 is attached to the movement path along the movement path of the pallet 71, and the guide rail 75 forms a track on which the guide roller 76 rolls. The guide rail 75 can be attached to the front roller guide rail 20 along the front roller guide rail 20, for example.

The guide rail 75 has a smooth undulation in the horizontal direction on the horizontal plane according to the position of the pallet 71.
That is, the horizontal distance between the rolling surface of the guide roller 76 of the guide rail 75 and the side surface of the pallet 71 differs depending on the position of the pallet 71. Mainly in the backward section, the distance between the side surface of the pallet and the rolling surface of the guide roller 76 is relatively large as shown in FIG. 18A, and in the forward section, as shown in FIG. 18B. Is relatively small.

A spring 80 is provided on the lever 77 so as to press the guide roller 76 against the guide rail 75.

Hereinafter, the operation of this safety mechanism will be described with reference to FIG.
7 and FIG. Now, it is assumed that the escalator device is in the ascending operation and the pallet is in the landing section on the lower floor (see FIG. 17A).

In this section, the adjacent front pallet 73
(Meaning a pallet 71 relatively ahead of two pallets 71 adjacent to each other) and a rear pallet 74
(Meaning pallets that are relatively rearward) are on the same horizontal plane as one another. In this case, as shown in FIG. 18A, since the side surface of the pallet 71 is separated from the guide rail 75, the guide roller 76 is pressed against the guide rail 75 by the restoring force of the spring 80 and rolls. At this point, lever 77
Is stored inside the pallet 71, and the hook 79 does not protrude from the front of the pallet.

When the pallets 73 and 74 move and come to a section where the distance between the side surface of the pallet 71 and the guide rail 75 is reduced, the guide roller 76 moves along the guide rail 75 as shown in FIG. The lever 77
Tilt about the fulcrum 78 as the swing center.

Then, the hook 79 projects from the inside of the rear pallet 74 to the outside, and the hook 79 is engaged with the hook groove 68 of the shielding curtain 66 of the front pallet 73 (see FIG. 17B).

When the pallet further moves and approaches the inclined section, the front pallet 73 starts to rise, and a step in the height direction is generated with respect to the rear pallet 74. At this time, the shielding curtain 66 moves along the guide groove 66, and is guided by the guide roller 72 at the curved portion of the guide groove 66 and pulled out from the inside of the front pallet 73 (see FIG. 17C).

Even if the front pallet 73 further rises relatively, the shielding curtain 66 closes the step between the front pallet 73 and the rear pallet 74 (see FIG. 17D).

When the pallet reaches the upper floor through the inclined section, the level difference between the front pallet 73 and the rear pallet 74 starts to decrease. Then, the shielding curtain 66 is pulled by the constant tension spring 67 and stored inside the pallet (corresponding to FIG. 17C).

When the front pallet and the rear pallet are in the same horizontal plane by the reverse operation, the shielding curtain 66 is completely stored inside the steps of the front pallet 73 (FIG. 17).
(Equivalent to (b)).

Thereafter, the hook 70 of the coupler 69 is housed in the step of the rear pallet 74 to disconnect from the shield 66 (corresponding to FIG. 17A), and the front pallet 73 and the rear pallet 74 are separated from each other. Is done.

According to the above-mentioned safety mechanism, the shielding curtain stored in the front pallet can be connected from the rear pallet in the two adjacent pallets, and between the horizontal part and the inclined part on the outward path, the adjacent curtains can be connected. Can be blocked. In addition, since the shielding pallets can be stored without loosening and the individual pallets can be separated in sections other than the outward section, the pallets can be circulated individually.

The mechanism for interlocking the guide roller and the hook in the above configuration may be, for example, a gear transmission mechanism using a rack gear and a pinion, or a sliding linear transmission mechanism using a flexible wire or the like.

[First Modification of Safety Mechanism of Pallet Step] Next, a modification of the shielding film of the safety mechanism shown in FIGS. 17 and 18 will be described with reference to FIGS. 19 and 20. FIG. 19 is a schematic side view illustrating this modification, and FIG. 20 is an enlarged view of the front pallet 73 in FIG.

The link 81 is elongated horizontally, and the length of its long side is equal to the width of the tread surface of the pallets 73 and 74. The link 81 has a bearing 83a parallel to its long side.
And a bearing 83b.

In particular, as shown in FIG.
A roller contact curved surface portion 86 which is a semi-cylindrical curved surface is formed outside 3a and 83b. Further, the bearing 83a has an outer end surface 85 on the side opposite to the roller contact curved surface portion 86 which is stepped (one step lower than the rear surface of the link 81). On the side of the bearing 83b opposite to the roller contact curved surface 86, a step is formed by cutting and removing the inside of the link 81 to form an inner end surface 84.

Each of the links 81,..., 81 has a multi-link structure in which the respective bearings 83a are sequentially and oscillatably connected to the bearings 83b of the other links by pins (not shown). The multi-link shielding curtain 82 shown in FIG.

The guide roller 72 is rotatably provided inside the curved track portion of the guide groove 65 of the step 71.

The operation of the above configuration will be described below. When the front pallet 73 and the rear pallet 74 are on the same horizontal plane,
As shown in FIG. 20A, the multi-link shielding curtain 82 is housed inside the pallet by the tensile force of the constant tension spring 67.

Then, as the pallet moves, the hook grooves 6
When the front pallet 73 and the rear pallet 74 begin to have a step after the hook 70 of the rear pallet 74 is engaged with
The hook 70 pulls the tip link 87 downward. Then, the individual links 81,...
Move along. In the curved portion of the guide groove 65, the roller contact curved surface portion 86 of each link 81 and the guide roller 7
2 are in contact with each other, and at a constant radius of rotation
Pass the curved part of.

Links 81,..., 81 after passing through the curved portion
Is extended to an angle at which the inner end surface 84 of each link and the outer end surface 85 of another link adjacent thereto, that is, the relative angle 0 ° (does not rotate any more), and is constrained in a linear shape. Further, the multi-link shield curtain 82 is provided by the fixed tension springs 67.
Always receives a tensile force, so that it keeps a linear shape without bending even when it receives an external force from the direction of FIG. 19C.

According to this modification, the rigidity of the shielding curtain can be increased, and for example, even if an external force such as kicking of the shielding curtain by a passenger's foot is applied, the situation where the shielding curtain buckles is prevented. Can increase safety.

[Second Modification of Safety Mechanism for Pallet Step] Next, a modification of the coupler of the safety mechanism shown in FIGS. 17 and 18 will be described with reference to FIG.
In this modification, a multi-link mechanism is used for the coupler.

As shown in FIG. 21, a link lever 88 is mounted inside the pallet 71 so as to be able to swing (turn) via a fulcrum 100a. A guide roller 95 is rotatably provided at the rear end of the link lever 88, that is, at the end near the lateral side of the pallet 71, so that it can protrude from the lateral side of the pallet 71.
Also, the front end of the link lever 88, that is, the guide roller 9
At the end opposite to the side 5, a link lever 89 is
It is mounted so as to be able to swing freely through.

Further, the link 9 is provided inside the pallet 71.
0 is swingably attached via a fulcrum 100b. The link 90 is formed with an elongated slit 93. A guide pin 92 provided near the center of the link lever 89 is slidably engaged with the slit 93.

The link lever 89 has a shape that is bent and extended at the tip of the rotating shaft 91, and its end is connected to the spring 9.
8 is connected to the pallet 71. A hook 94 is formed on the other end of the link lever 89.

In the portion of the rotary shaft 91, an arc-shaped slit 97 is provided in the link lever 88, and a stopper pin 96 fixed to the link lever 89 is engaged with the circular slit 97.

On the other hand, a guide rail 99 is attached to the moving path along the trajectory of the pallet, and forms a trajectory on which the guide roller 95 rolls. The distance between the surface on which the guide roller 95 of the guide rail 99 rolls and the lateral side surface of the pallet 71 changes according to the position of the pallet.

Next, the operation will be described. First, in the section where the guide rail 99 is laid so that there is a gap between the lateral side surface of the pallet 71 and the guide rail 99, the link lever 88 receives a pulling force to the left in the drawing by the spring 98, and the guide roller 95 It rolls by being pressed against the guide rail 99 (see FIG. 21A). At this time, the hook 94 is
Do not protrude stored inside.

Next, when the pallet moves and reaches a position where the distance between the side surface of the pallet 71 and the guide rail 99 is reduced, the link lever 88 pivots in the direction of arrow A in FIG. Is moved in the positive X direction by the parallel linking action of the rotating shaft 91 and the link lever 90, and the hook 94 is inserted into the hook groove 68 of the front pallet (see FIG. 21B).

Further, the pallet moves, and the pallet 71
When the distance between the side surface of the vehicle and the guide rail 99 is further reduced,
The link lever 88 pivots further. The stopper pin 96 of the link lever 89 limits the relative bending angle between the link lever 88 and the link lever 89 at the end of the circular slit 97 of the link lever 88, so that the two levers 88, 89 move integrally. Become.

When the pallet 71 further moves and is displaced to a position where the guide roller 95 is pushed into the lateral side of the pallet 71, the guide pin 92 slides along the slit 93, and the link lever 88 and the link lever 90 are moved in parallel. Killing the link action, the link lever 89 becomes the link lever 88
And turns around the fulcrum 100a. The moving direction of the hook 94 is changed from the positive X direction to the positive Y direction, and the hook 94 is fitted into the hook groove 68.

When the distance between the side surface of the pallet 71 and the guide rail 99 is increased again, the link lever 89 is moved by the spring 98.
At the same time, the hook 94 is moved in the negative X direction after the hook 94 is moved in the negative Y direction by the reverse action of receiving the rightward restoring moment of the rotating shaft 91. Thus, the link lever 89 is disengaged from the hook groove 68 of the shielding curtain 66 and is stored inside the pallet.

According to the above-described modification, since the hook can be moved in the lateral direction after the hook is inserted into the hook groove to perform the fastening operation, the connection between the hook and the shielding film can be made firm and reliable. In addition, the accuracy of the connection position between the shielding curtain and the pallet can be improved.

[0146]

As described above, according to the present invention,
An escalator device capable of reducing the vertical thickness can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a pallet circulation system in an escalator device according to the present invention.

FIG. 2 is a view for explaining the operation of a pallet on the upper floor of FIG. 1;

FIG. 3 is a view for explaining a pallet operation on a lower floor portion in FIG. 1;

FIG. 4 is a perspective view showing a pallet and a guide roller provided in the escalator device according to the present invention.

FIG. 5 is a schematic perspective view showing the arrangement of guide rails on the upper floor.

FIG. 6 is a schematic perspective view showing the arrangement of guide rails on the lower floor.

FIG. 7 is an enlarged sectional view showing an arrangement of guide rollers and chains with respect to guide rails.

FIG. 8 is a perspective view schematically showing a machine room of the escalator device according to the present invention.

FIG. 9 is a perspective view schematically showing a constant speed feed mechanism on the upper floor.

FIG. 10 is an enlarged plan view of the constant speed feed mechanism shown in FIG. 9;

FIG. 11 is a perspective view schematically showing a constant speed feed mechanism on a lower floor.

FIG. 12 is a schematic perspective view of the constant speed feed mechanism on the lower floor, viewed from another direction.

FIG. 13 is a schematic perspective view showing another embodiment of the constant speed mechanism on the lower floor.

FIG. 14 is a schematic perspective view showing a safety device provided on a side portion of the pallet.

FIG. 15 is a schematic sectional view of a guide rail portion in FIG. 14;

FIG. 16 is a schematic perspective view of a safety device that covers a gap between adjacent pallets.

FIG. 17 is an operation explanatory view of the safety device shown in FIG. 16;

FIG. 18 is a plan view schematically showing a coupler for pulling out and fixing a shielding film from a pallet.

FIG. 19 is a schematic side view showing another embodiment of the shielding film.

20 is an enlarged cross-sectional view from the side showing the outline of the rear portion of the pallet in FIG. 19;

FIG. 21 is a schematic plan view showing the configuration and operation of another embodiment of the coupler.

FIG. 22 is a schematic perspective view of a conventional escalator device.

FIG. 23 is a schematic diagram illustrating a pallet circulation system of a conventional escalator device.

[Explanation of symbols]

9, 71 Pallet 16 Rear roller (first or second guide roller) 17 Front roller (first or second guide roller) 19 Guide rail for rear roller (guide means, first or second guide rail) 20 Front roller guide rail (guide means, first or second guide rail) 33 Chain (endless cord-like body) 40, 53 Sprocket (pulley) 50, 57 Belt with projection 52 Engager 60 Torque wire 66, 82 Shielding Curtain (shielding member) 67 Constant tension spring (spring) 69 Coupler 70 Hook 76 Guide roller (guide member) 88 Link lever 89 Link lever 90 Link lever 92 Guide pin 93 Slit 94 Hook 95 Guide roller (guide member) 98 Spring 99 Guide rail

Claims (17)

[Claims] An escalator for transporting passengers between upper and lower floors of a building by a plurality of pallets circulated and driven along an endless track, wherein each of the pallets is formed in a flat plate shape, An escalator device comprising: a mechanism for changing a moving direction of the pallet without reversing the posture of the pallet in a turn-back section of the track. 2. An escalator device for transporting passengers between upper and lower floors of a building, comprising: a plurality of pallets provided endlessly and circulated between the upper and lower floors; Endlessly provided between first and second guide rollers and upper and lower floors to guide the first and second guide rollers along first and second circulation paths, respectively, and to position each of the pallets. First and second guide means for determining the first and second directions.
Are arranged in a positional relationship such that projections on the vertical plane from the left and right directions intersect each other in the turnback section, and each of the pallets circulates with the tread surface always facing upward. Escalator device. 3. The escalator device according to claim 2, wherein the pallet has a flat plate shape. 4. The first guide means comprises a first guide rail provided along the first circulation path and guiding the first guide roller, and at least one of the second guide means. The escalator device according to claim 2, wherein a part of the escalator device is provided along the second circulation path and includes a second guide rail that guides the second guide roller. 5. An endless cord-like body for connecting the pallets endlessly and for circulating the pallets between upper and lower floors, wherein the second circulating path has a folded section of upper and lower floors, 5. The escalator device according to claim 4, wherein the second guide unit is constituted by the endless cord, and the second guide roller is guided by the cord. 6. The first and second guide rails are arranged such that the first guide rail is located closer to the pallet and the second guide rail is located farther from the pallet. Wherein the first and second guide rollers are located on a side closer to the pallet than the pallet;
Are arranged at positions shifted from each other in the left-right direction so that the second guide roller is located farther from the pallet, and the second guide roller is connected to the pallet and the second guide roller is rotatable. A supporting member is provided, and the supporting member is disposed in a positional relationship such that projections of the supporting member and the first guide rail from a vertical direction onto a horizontal plane intersect with each other; The escalator device according to claim 4, wherein the first guide rail is provided with a cutout portion through which the support member can pass. 7. In the turnback section, the first circulation path has an area where the distance from the first circulation path changes continuously with the second circulation path, and this area is defined by the first guide roller. The escalator device according to claim 2, wherein, when passing, the pallet shifts to an inclined state, and the moving direction of the pallet is reversed in the inclined state. 8. An endless cable that is guided along the second guide rail and interconnects the pallets, the cable being bridged, and an upper floor and a lower floor. A pair of pulleys provided on each floor side, and a motor that rotationally drives at least one of the pulleys,
The escalator device according to claim 4, further comprising: 9. A moving section provided along the first guide rail in the turn-back section and engaging with an engaging member provided on the first guide roller to limit a moving speed of the first guide roller. The escalator according to claim 8, further comprising a belt with a protrusion, wherein the pallet is controlled in attitude by limiting a moving speed of the first guide roller by the belt with the protrusion. apparatus. 10. A pair of pulleys are provided on one of an upper floor and a lower floor, and are connected to the motor, and a driven pulley is provided on the other of the upper floor and the lower floor. The escalator device according to claim 9, comprising a pulley, wherein a driving force of the belt with the protrusion is obtained from the driven pulley. 11. The transmission of driving force from the driven pulley to the belt with protrusions is performed via a cable-like body such as a bendable torque tube capable of transmitting torsional force. The escalator device according to claim 10. 12. The pallet according to claim 12, wherein the first guide roller is disposed on a front side of a front end surface of the tread surface of the pallet and above the tread surface, and the second guide roller is lower than the first guide roller. A support member for mounting the first and second guide rollers to the pallet is provided protruding from a lower end portion of a side surface of the pallet, between the pallet and the guide rail; The shielding member is provided, and the lower end surface of the shielding member is located above the locus of the support member accompanying the movement of the pallet, and is located below the locus of the tread surface of the pallet. The escalator device according to claim 4, wherein the escalator device is arranged as follows. 13. The escalator device according to claim 2, further comprising a shielding member for covering a vertical step opening caused by a difference in height between pallets adjacent to each other in a skew section. 14. The shielding member is formed to be bendable and retractably accommodated in the pallet, and one end of the shielding member is connected to a relatively front pallet of two pallets adjacent to each other. Provided on the relatively front pallet via a spring for urging the shielding member to be drawn into the pallet; and a relatively rear pallet of two pallets adjacent to each other, 14. The escalator device according to claim 13, further comprising a coupler that is engageable with the other end of the shielding member accommodated in the relatively front pallet. 15. A guide rail is provided along a movement path of the pallet, wherein the coupler is rotatably provided in the pallet,
And, at one end thereof, a hook that can be engaged with the shielding member is provided, and at the other end, a guide member that comes into contact with the guide rail is provided. The escalator device according to claim 14, wherein the hook is engaged with and released from the shielding member. 16. A guide rail is provided along a moving path of the pallet, wherein the coupler has a first link, a second link, and a third link provided in the pallet, The first link is pivotally attached to the pallet and has a guide member at one end thereof, which is in contact with the guide rail. The second link has one end side whose turning angle is limited to the first link. While being pivoted in the
The tip side further than the pivot point with the link is connected to the pallet via a spring, and has a hook at the other end that can be engaged with the shielding member, and a pin is provided between one end and the other end. The third link is pivotally connected to the pallet, and
The pin of the second link has a slit that slidably engages, the third link supports the second link by engaging with the pin, and the guide member is Displaced according to a change in the distance in the left-right direction with respect to the rail, and as the guide member is displaced toward the pallet, the hook first advances toward the front pallet and enters the engaging portion of the shielding member, The escalator device according to claim 14, wherein the escalator is displaced in the left-right direction and engages with the engaging portion. 17. The shielding member is constituted by a multi-link mechanism in which links and pins are alternately connected, and a relative bending angle of each link constituting the multi-link mechanism is determined by a pallet of which the shielding member is adjacent to each other. The escalator device according to claim 13, wherein the escalator device is limited so as not to enter a gap.