JP2003155187A - Passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor with installation space reduced especially in the cross direction and installable for renewal within the same dimensions yet extensible in the cross direction. SOLUTION: In this passenger conveyor, it is so designed that the width of a handrail 17 is Wa during the outward movement of the balustrade circumference and is reduced wholly or partially to Wb during the return movement of the same (Wa>Wb).

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a passenger conveyor such as an escalator or an electric road.

[0002]

2. Description of the Related Art Generally, a passenger conveyor has a main frame composed of left and right side frames and a lateral member connecting these side frames as disclosed in Japanese Patent Laid-Open No. 3-124692. In this main frame, a plurality of treads connected endlessly to travel back and forth, balustrades erected at positions corresponding to both sides of these treads, and handrails that run around the periphery of the balustrade. I have you support it.

[0003]

The above-mentioned prior art does not give consideration to reducing the installation space of the passenger conveyor. Therefore, for example, about 20 years after the installation, the passenger conveyor is removed and a new installation is renewed. Even if it tried, the passenger conveyor of the same tread (width) size had to be installed.

An object of the present invention is to provide a passenger conveyor which can reduce the installation space, especially the installation space in the width direction.

Another object of the present invention is to provide a passenger conveyor which can be installed within the same installation size and can be expanded in the width direction at the time of removal and renewal.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention uses a handrail in which the traveling width of the return path on the main frame side is wholly or partially compared to the traveling width of the outward path on the peripheral side of the balustrade. The running width was changed to be smaller.

With the above structure, the travel width of the handrail return path, which has conventionally existed between both sides of the width plate and the main frame, can be greatly reduced, and as a result, the widthwise dimension of the passenger conveyor can be reduced. Can be reduced.

The fact that the size of the passenger conveyor in the width direction can be reduced means that, if the installation size is the same, it is possible to adopt a tread having a margin in the width direction, in other words, an expanded width direction. This means that the removal and the renewal of the new installation can contribute to the increase of the transportation capacity of the passenger conveyor and the increase of the moving space.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to an escalator shown in FIGS.

The escalator 1 has a main frame 2 installed across the upper floor UF and the lower floor LF of the building. The main frame 2 has left and right side frame bodies 3 and a lateral member 4 connecting these side frame bodies 3. The side frame 3 includes an upper chord member 5 extending in the longitudinal direction of the escalator 1, a lower chord member 6 located below the upper chord member 5 with a gap, and a vertical member connecting the upper chord member 5 and the lower chord member 6 to each other. 7 and 7.

The main frame 2 constructed as described above has guide rails 8 on both inner sides thereof for guiding a tread, which will be described later.
Is fixed. The step 9 is a tread frame 10 and this tread frame 1
0 and a tread plate 11 fixed horizontally, and
A pair of front wheels 1 projecting from both ends of the tread frame 10 in the width direction.
It is provided with wheels composed of two and rear wheels 13. These wheels roll on the guide rails 7 and travel on the outward path so that the tread 11 can always be kept horizontal.

Further, balustrades 14 are erected on the upper portions of the left and right side frame bodies 3 via fixing members. This balustrade 14
Is, for example, a balustrade panel 15 made of a tempered glass panel.
And a handrail frame 16 fixed to the periphery of the balustrade panel 15,
The handrail frame 16 has an endless handrail 17 that is guided so that the handrail frame 16 can travel, and the base portion of the balustrade panel 15 is covered with an inner deck cover 18 and an outer deck cover 19. A skirt guard 20 that vertically separates the inside of the inner deck cover 18 and the outer deck cover 19 from the end of the step 9 extends from the lower portion of the inner deck cover 18. Further, the handrail 17 is turned around on one side of both ends of the balustrade 14 in the longitudinal direction to enter the inside of the inner deck cover 18 and the outer deck cover 19, and the other side of the longitudinal deck of the balustrade 14 on the inner deck. Cover 18 and outer deck cover 1
The vehicle travels on the upper side of 9 as the outward path, and travels on the lower side of the inner deck cover 18 and the outer deck cover 19 as the return path.

In the step 9, the shaft of the front wheel 12 is connected to a step chain 21, and the step chain 21 is wound around a drive sprocket 22 which is supported in the upper machine chamber of the main frame 2. The drive sprocket 22 is installed in the vicinity, and a rotational force is transmitted by a drive machine 24.

In the escalator 1 of the above mechanism, the travel width Wb of the handrail 17 on the outward side on the peripheral side of the balustrade 14 (FIG. 1) is compared with the travel width Wb of the return path on the main frame 2 side in whole or in part. The respective running widths are changed so as to be small (Wa> Wb).

More specifically, on the forward side of the handrail 17, the wide upper surface of the handrail 17 is made to run in a horizontal state parallel to the step 11, and on the return side of the handrail 17, a state closer to vertical than horizontal. The vehicle is tilted in the direction of travel and the travel width of each is set to the return path (width Wb) rather than the outward path (width Wa).
The structure is made smaller. In this case, the change of the handrail 17 from the horizontal state to the tilted state is caused by engaging the inner circumference of the handrail 17 which is also fixed and fixed to the fixing member 25 fixed to the vertical member 7. The guide rail 26 guides the travel of the handrail 17 and has a function similar to that of a part (guide portion) of the handrail frame 16 so that the guide rail 26 is oriented. That is, the handrail 17 has a horizontal traveling width Wa when the guide frame 26 is placed in a horizontal state, and a traveling width Wb when placed in an inclined state, and a traveling state as shown in FIG. The return path of the handrail 17 can be set to have the traveling width Wb as a whole, and for example, the drive device portion of the handrail 17 or a portion having a space between the step 9 and the main frame 3 is horizontal. State (running width Wa)
In addition, as shown in FIG. 1, the portion where the notch 7A must be provided in order to get close to the vertical member 7 to obtain the traveling space of the handrail 17 is partially inclined (the traveling width Wb), and the notch 7A is formed. It is also possible to avoid. As shown in FIG. 1, the handrail 17 in the tilted state is so-called maintenance work in which the opening having a substantially C-shaped cross section faces the main frame 2 and is detached from the guide frame 26 or attached to the guide frame 26. Sometimes, it is convenient to be able to deal with the work space on the side of the step 9.

As described above, according to the embodiment of the present invention, since the traveling width of the handrail 17 on the return path can be reduced, the distance between the steps 9 and the main frame 2 can be reduced, and the vertical member 7 need not be cut out. The increase in cost and the decrease in strength are eliminated. It is also effective in securing a maintenance work space.

As a result, if the width of the steps 9 is the same as the conventional one, the installation width of the escalator 1 can be reduced.

For example, after about 20 years have passed since the escalator was installed, the internal mechanism is designed with a large margin, so when renewal, the step width of the existing escalator is the same, but the step width of the existing escalator is wide. 10
If the width is 00 mm, a renewal escalator with a step width of 1200 mm can be installed to improve the transportation capacity and expand the moving space.

In the above embodiment, the escalator was used as an example of the passenger conveyor, but the present invention can be applied to an electric road having the same basic structure as the escalator and having no large step between the treads.

[0020]

As described above, according to the present invention, it is possible to reduce the installation space, particularly the installation space in the width direction, and to install the passenger conveyor which can be installed in the same installation size and can be expanded in the width direction at the time of renewal. Obtainable.

[Brief description of drawings]

FIG. 1 II of 3 showing essential parts of a passenger conveyor according to the present invention
-A sectional view taken along the line II.

FIG. 2 is a sectional external view of FIG. 1 showing a main part of a passenger conveyor according to the present invention.

FIG. 3 is a schematic side view showing the entire passenger conveyor according to the present invention.

[Explanation of symbols]

1 ... Escalator (passenger conveyor), 2 ... Main frame, 3 ...
Side frame, 9 ... steps, 11 ... tread, 17 ... handrail,
26 ... Information frame.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Chuichi Saito             4-6 Kanda Surugadai, Chiyoda-ku, Tokyo             Within Hitachi, Ltd. (72) Inventor Kahei Kojima             1070 Ichimo, Hitachinaka City, Ibaraki Prefecture Stock Association             Hitachi Building Co., Ltd. Mito Bi             Le System Headquarters (72) Inventor Tetsuya Takahashi             2 days at 832 Horiguchi, Hitachinaka City, Ibaraki Prefecture             Tachimito Engineering Co., Ltd. F-term (reference) 3F321 AA05 AA09 CF12

Claims (2)

[Claims] 1. A plurality of treads that are connected endlessly and reciprocate, a handrail that runs around the periphery of a balustrade installed upright on both sides of these treads, left and right side frames, and a lateral member that connects these. In a passenger conveyor having a main frame that supports the treads and the handrail and is installed in a building, the handrail with respect to the travel width of the outward path on the peripheral side of the balustrade, on the main frame side. A passenger conveyor characterized in that the traveling width is changed so as to reduce the traveling width on the return path in whole or in part. 2. The passenger conveyor according to claim 1, wherein the travel width of the return path of the handrail is changed by a guide frame of the handrail.