HK1068590B - Passenger conveyer - Google Patents

Description

Passenger conveyor

Technical Field

The present invention relates to a passenger conveyor such as an escalator or an electric transfer passage.

Background

In the conventional passenger conveyor, for example, in japanese patent laid-open publication No: in the publication 3-124692, a main frame having right and left side frame bodies and a cross member connecting the right and left side frame bodies are installed in a building, and annularly connected and circulating multi-stage steps, balustrades installed on both sides of the steps, and a moving handrail moving around the balustrades are supported in the main frame.

In the above-described conventional technique, no consideration is given to reducing the basic space of the passenger conveyor, and even if an old passenger conveyor used for 20 years is replaced after a new passenger conveyor has been built, a passenger conveyor having the same step size has to be installed.

Disclosure of Invention

An object of the present invention is to provide a passenger conveyor capable of reducing its basic space, particularly, the basic space in the width direction.

Another object of the present invention is to provide a passenger conveyor that can be installed in the same basic size and can be expanded in the width direction when replaced.

In order to achieve the above object of the present invention, there is provided a passenger conveyor having a plurality of steps connected in a loop shape to circulate, a moving handrail moving around a balustrade installed at both sides of the steps, side frame bodies installed at right and left sides, a cross member connecting the side frame bodies, and a main frame for supporting the steps and the moving handrail on a building, wherein:

the return path of the moving handrail is arranged such that its vertical projection overlaps with that of the side frame body of the main frame, and

the vertical projection of the return path of the moving handrail is overlapped with the vertical projection of the wheels of the pedal.

The vertical projections of the side frame bodies of the main frame and the moving handrail are arranged to overlap, and the vertical projections of the wheels of the moving handrail and the pedal are also arranged to overlap.

According to the above configuration, the air gap portions of the right and left side frame bodies and the side frame bodies between both ends in the width direction of the step plate can be greatly reduced, and as a result, the dimension in the width direction of the passenger conveyor can be reduced.

This means that the passenger conveyor can be installed with a suitable space in its width direction, in other words, a step expanding in size in the width direction can be provided, so that the conveying capacity of the passenger conveyor can be improved by retrofitting the passenger conveyor.

Drawings

Fig. 1 is a sectional view showing the structure of the main part of the passenger conveyor of the invention, and taken along the line II-II in fig. 2.

Fig. 2 is a side view schematically showing the entire structure of the passenger conveyor of the invention.

Detailed Description

An embodiment of the present invention applied to an escalator will be described below using fig. 1 and 2.

The escalator 1 has a main frame 2 mounted from an upper floor UF to a lower floor of a building. The main frame 2 has right and left side frame bodies 3 and a cross member 4 connecting the side frame bodies 3. The side frame body 3 is constructed with a top chord 5 extending in the length direction of the escalator 1, a bottom chord 6 positioned with a gap in the lower direction of the top chord 5, and a vertical member 7 connecting the top chord 5 and the bottom chord 6.

Guide rails 8 for guiding pedals to be described later are fixed to both inner side portions of the main frame 2 configured as described above.

The pedals 9 are composed of a pedal frame 10, pedals 11 horizontally fixed to this pedal frame 10, and wheels composed of a pair of front wheels 12 and rear wheels 13 respectively provided at both ends in the width direction of the pedal frame 10. These wheels rotate and move on the above-mentioned guide 7 in order to keep the tread in a horizontal direction always on the entry path.

In addition, in the upper portions of the right and left housing bodies 3, balustrades 14 are provided by means for fixing. The balustrade 14 has balustrade panels 15 to constitute reinforced glass panels, for example a balustrade frame 16 fixed to the edges of the balustrade panels 15, a moving handrail 17 which can move annularly on the balustrade frame 16, the base member of the balustrade panels 15 being covered with an inner cover plate 18 and an outer cover plate 19. The skirt guard 20 extends vertically from a lower portion of the inner deck 18 so as to separate the inner sides of the inner and outer decks 18 and 19 and the end of the step panel 9. In addition, the length of the moving handrail 17 on one side of the balustrade 14 changes direction so as to enter the inside of the inner and outer cover plates 18, 19 and to turn out to the outside of the inner and outer cover plates 18, 19 on the other side of the balustrade 14. The moving handrail 17 is an entry path through the outside of the inner and outer cover plates 18, 19 and a return path through the inside of the outer and inner cover plates 18, 19.

The axles of the front wheels 12 of the pedals 9 are connected by a pedal chain 21, which pedal chain 21 is looped around a drive sprocket 22 pivoted between the upper machines of the main frame 2 and around a pair of driven sprockets 23 between the lower machines of the main frame 2. The drive sprocket 22 is driven by a drive machine 24 mounted in the vicinity thereof.

In the escalator constructed as described above, the vertical projection of the moving handrail 17 is arranged so as to overlap the side frame body 3, this overlapping portion has a dimension L in the width direction of the step panel 9, and the vertical projection of the wheels of the step panel 8, particularly the front wheels 12, is arranged so as to overlap the moving handrail 17 arranged as described above. The moving handrail 17, which is vertically projected to overlap the side housing body 3, is configured so that the moving handrail 17 is conveyed at least on the return path side.

More specifically, the step difference portion 7A is formed at an upper portion of the vertical member 7 so that a vertical projection of the moving handrail 17 is overlapped on the top chord 5 of the side frame body 3 with respect to the step width direction to avoid interference with the moving handrail 17. Further, with respect to the moving handrail 17 provided as described above, the front wheel 12 of the step is moved in the step width direction, and the vertical projection of the moving handrail 17 is overlapped on the front wheel 12, so that the end of the step 9 is brought close to the side housing body 3. However, if the front wheels 12 are overlapped to the vertical projection of the moving handrail 17 so that the center of the front wheels 12 moves to the side frame body 3 to form a deviation L0 from the center of the moving handrail 17, the end of the step panel 9 becomes closer to the side frame body 3 side.

In this manner according to this embodiment, since the moving handrail 17 can be conveyed to the side frame body 3 side, the skirt guard 20 can be brought close to the moving handrail 17 disposed on the return path and inside the inner cover 18 and the outer cover 19, at which time, the end of the step panel 9 in the width direction thereof can be disposed to be brought close to the guard 20 by moving the center of the front wheel 12 of the step panel 9 from the center of the moving handrail 17 to the side frame body 3 side.

Therefore, when the width of the step 9 is the same as that of the conventional step, the installation width of the escalator 1 can be reduced.

When the escalator is renewed about 20 years after installation, the escalator will have sufficient space for the inner structure, although it has the same basic width as before, for example an already constructed escalator having a step width of 1000mm, and a new escalator having a step width of 1200 mm. And through the above updating, the conveying capacity is improved.

In the above-described embodiment, although the escalator is described as an example of the passenger conveyor, the present invention can be conveniently applied to the electric passage having the same basic structure as the escalator in the same manner without generating a difference between the steps.

According to the present invention as described above, it is possible to reduce the installation space, particularly in the width direction, and when updating the passenger conveyor, it is possible to provide the passenger conveyor with a wider step in the same installation size.

Claims (5)

1. A passenger conveyor having a plurality of steps connected in a loop shape to circulate, a moving handrail moving around a periphery of a balustrade installed at both sides of the steps, side frame bodies installed at right and left sides, a cross member connecting the side frame bodies, and a main frame for supporting the steps and the moving handrail on a building, wherein:

the return path of the moving handrail is arranged such that its vertical projection overlaps with that of the side frame body of the main frame, and

the vertical projection of the return path of the moving handrail is overlapped with the vertical projection of the wheels of the pedal.

2. A passenger conveyor having a plurality of steps connected in a loop shape to circulate, a moving handrail moving around a periphery of a balustrade installed at both sides of the steps, side frame bodies installed at right and left sides, a cross member connecting the side frame bodies, and a main frame for supporting the steps and the moving handrail on a building, wherein:

the moving handrail is arranged such that a vertical projection thereof overlaps with a vertical projection of a side frame body of the main frame, an

The vertical projection of the wheels of the pedal is overlapped with the vertical projection of the main frame side of the movable handrail.

3. The passenger conveyor according to claim 1 or 2, characterized in that:

the wheels of the step are shifted so that the centers of the wheels are adjacent to the side frame bodies from the center of the arm rest.

4. The passenger conveyor of claim 1, 2, or 3, wherein:

the pedals include a front wheel having a greater clearance than a pair of rear wheels.

5. The passenger conveyor of claim 1, 2, 3, or 4, wherein:

the moving handrail, to which the vertical projection of the side frame body of the main frame is overlapped, is disposed in a return path of the moving handrail.