JPH11263567A - Horizontal circulation system moving walk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deal with a moving walk however long it may be. SOLUTION: Two straight parts 1a, 1b and two semicircular circular-arc-like parts 1c, 1d are endlessly combined together to form an annular rail 11, many pallets 3 are connected together and placed thereon so as to be overlapped to each other at the one parts, the pallets 3 are connected to each other by a string-like member, the pallets 3 are pushed one another in the circular-arc parts 1c, 1d by screw rods 16 provided on the straight parts adjacent to the circular-arc parts 1c, 1d, the pallets 3 are moved in the straight parts 1a, 1b by pulling one another by drive of screw rods 27 for assistant drive provided on the midways of the straight parts and the string-like member, and the moving walk is moved while loading persons on the pallets 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal circulating sidewalk which is installed in public facilities such as airports and station yards and carries personnel, and more particularly to a horizontal sidewalk in which an outward route and a return route are provided in parallel. It is about a revolving moving sidewalk.

[0002]

2. Description of the Related Art Various types of sidewalks have been proposed, some of which have already been put into practical use.
For these moving walkways, an endless chain is wrapped around two pairs of sprockets spaced apart by the length of the sidewalk, and a plurality of pallets are connected to the endless chain. Is for returning a person on a return side (lower surface) in an empty state, and is usually provided separately for an outbound route and a return route. In addition to the above-mentioned moving walkway, a variable-speed moving walkway and escalator which are not practically used but are circulated horizontally have been proposed (Japanese Patent Publication No. Sho 56-118).
257).

A moving walkway and an escalator disclosed in Japanese Patent Publication No. 56-257 are designed so that a movable carriage is driven by flexible screw shafts having different pitches, and long grooves are provided before and after the lower surface of the movable carriage. A shaft is provided in the moving direction of the moving trolley, and a mounting frame having a built-in steel ball rotatably provided in the moving direction of the moving trolley is slidably supported on the shaft, and the steel ball is threaded between the screw shaft threads. Even when the pitch of the screw shaft is changed, the mounting frames provided at the front and rear of the lower part of the movable carriage slide back and forth on the shaft, respectively, so that the movable carriage can automatically follow.

However, the variable-speed moving walkway and escalator disclosed in Japanese Patent Publication No. 56-257 are difficult to manufacture because the screw shaft of the arc-shaped portion is flexible, and the utility is poor. In addition, the movable carts do not contact each other, and there is a large safety gap between the carts at a long pitch, which poses a problem in terms of safety.

[0005] In order to solve the above-mentioned problems, the applicant of the present application has set a screw rod for moving a pallet on a linear portion near an arc of a moving sidewalk to drive the arc of the moving sidewalk. Is performed by pushing and pulling the pallets together, and a horizontal circulation type moving sidewalk is created in which the pallets are overlapped with each other so that there is no gap between the pallets.
Patent application (Japanese Patent Application No. 9-280553 (not disclosed)).

As shown in FIGS. 4 to 7, the horizontal revolving moving sidewalk described in Japanese Patent Application No. 9-280553 has two straight portions 1a and 1b and two semicircular arc portions 1c and 1c. A plurality of pallets 3 are connected and mounted so as to partially overlap each other on a rail 11 formed in an annular shape by combining 1d with an endless shape, and a horizontal circulating type movement is performed in which personnel are moved on the pallets 3 and moved. The sidewalk 1, wherein the straight sections 1a, 1b
Are the moving sidewalks of the outward route and the return route. The linear portions 1a and 1b near the semicircular arc portions 1c and 1d have a short pitch on the entrance side and the exit side, and a long pitch on the intermediate side.
1. A total of four screw rods 16 having a spiral screw groove 16a provided along the axis 1 are provided. A roller 18 projecting from the lower surface of the pallet 3 is engaged with the screw groove 16a of the screw rod 16, The pallet 3 is moved by rotating the pallet 16. The semicircular arc-shaped portions 1c and 1d engage with the concave portion on the front surface of the rear pallet 3 and the projection on the lower surface of the front pallet 3 to push each other. In the middle of the linear portions 1a and 1b (that is, the portion where the screw rod 16 is not provided), the pallets 3 are pulled together by a string-shaped member 22 and connected to each other. Reference numeral 24 denotes a handrail of a moving sidewalk provided above both ends of the pallet 3 (FIG. 4).

[0007]

However, in the moving sidewalk of the horizontal circulation type described in Japanese Patent Application No. 9-280553,
As the length of the two straight sections increases, the capacity of the drive unit and the connecting device between the pallets must be increased accordingly, so that the size of the component parts increases and the structural maximum length of the machine length is increased. Will be restricted. In addition, the pallet is moved by engaging a roller protruding from the lower surface of the pallet with the screw groove of the screw rod, but the machine length becomes longer, expansion and contraction due to temperature, elongation due to pulling force, installation error, etc. When the string-like member connecting the pallets extends, the last pallet engaged with the longer pitch of the screw rod also becomes slack. Therefore, when the pallet comes out of the screw rod, the pallet is rapidly accelerated, which causes problems such as a decrease in ride comfort.

The present invention has been made in order to solve the above-mentioned problems, and can cope with a long PIC without increasing the size of the components even if the PIC becomes longer. It is an object of the present invention to provide a horizontal circulation type moving sidewalk capable of performing the following.

[0009]

According to the present invention, a large number of pallets are arranged on a rail formed by combining two straight portions and two semicircular arc portions in an endless manner. A horizontally circulating moving sidewalk in which a part is connected and placed so as to overlap with each other, and a person moves on a pallet and moves, wherein the linear portion is a moving sidewalk of an outward route and a return route, and is a semicircular circle. The straight portion near the arc portion is provided with a screw rod having a helical thread groove provided along the rail, the pitch being short on the inlet side and the outlet side, and the pitch being long on the middle side, and the screw rod of the screw rod is provided. In the groove, a roller projecting from the lower surface of the pallet is engaged, and the pallet is moved by rotating the screw rod. Engage each other In a horizontal circulation type moving sidewalk that moves by engaging each other and pulls each other by a string-like member connecting the pallets in the middle of the linear part, in the middle of the linear part, near the arc-shaped part A horizontally circulating moving walkway provided with one or more screw rods having the same pitch as the long pitch of the screw rods is provided.

[0010] According to a preferred embodiment of the present invention, the screw rod is provided at the entrance side and the exit side of the forward and return paths.
A total of six pallets are provided at an intermediate portion between the book, the outbound path and the return path, and the pallets are drawn and moved between the screw rods by the string-like members.

Next, the operation of the present invention will be described. A screw rod for auxiliary driving having the same pitch as the long pitch of the screw rod is linearly arranged between two screw rods having a short pitch and a long pitch provided in a linear portion near the arc-shaped portion of each semicircle. 1 depending on the length of the part
Alternatively, since two or more members are provided, it is possible to limit the length of the linear portions that are not driven by the screw rods and are drawn and moved by the string-like members connecting the pallets to an appropriate length. Therefore, it is not necessary to increase the driving horsepower of each screw rod, and theoretically, the moving sidewalk can be lengthened as much as possible. Further, the elongation of the string-like member connecting the pallets does not become excessively large, and the difference from the pitch of the screw rod can be made within an allowable range.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall view of a moving sidewalk, (A) is a plan view, and (B) is a side view. FIG. 2 is an enlarged plan view of the intermediate pallet variable speed device of FIG. FIG. 3 is a plan view of the pallet. In the present invention, members common to those described in FIGS. 4 to 7 will be described using the same reference numerals, and redundant description will be omitted.

As shown in FIGS. 1 and 2, on a rail 11 formed in an annular shape by combining two straight portions 1a and 1b and two semicircular arc portions 1c and 1d endlessly. A horizontal circulation type moving sidewalk 1 in which a number of pallets 3 are connected and mounted so that a part thereof overlaps each other, and a person moves on the pallets 3 to move, and the linear portions 1a and 1b correspond to an outgoing route and a returning route. It is a moving sidewalk, semicircular arc-shaped part 1c,
In the linear portions 1a and 1b near 1d, four screw rods 16 having a short pitch on the inlet side and the outlet side and a long pitch on the intermediate side and having a spiral thread groove 16a provided along the rail 11 are provided. Rollers 18 projecting from the lower surface of the pallet 3 are respectively engaged with the screw grooves 16a of the screw rod 16 (FIG. 7), and the pallet 3 is moved by rotating the screw rod 16. . The semi-circular arc-shaped portions 1c and 1d are moved by engaging the recess 3a on the front surface of the rear pallet 3 and the projection on the lower surface of the front pallet 3 and pressing each other to form two linear portions 1c.
In the middle between a and 1b, the pallets 3 are attracted to each other and moved by a string-like member 22 connecting the pallets 3 to each other. A screw rod 27 having the same pitch as the long pitch of the screw rod 16 near the arc-shaped portions 1c and 1d is provided between the two straight portions 1a and 1b.

1 (A) and 1 (B), reference numeral 2 denotes a boarding / discharging section provided on a semicircular arc-shaped section 1c, 1d, 2a denotes a boarding / alighting section on the side of the arc-shaped section 1c, and 2b denotes a side of the arc-shaped section 1d. It is the getting on and off part of. In the plan view of FIG. 1A, the rail 11 is shown only on the arc-shaped portion 1c side and the arc-shaped portion 1d side.
The straight portions 1a and 1b are not shown because they are complicated.

As shown in FIG. 3, the pallet 3 has a concave portion 3a formed on the front surface, a comb tooth 3b provided on the rear surface, and a projection 3c provided on the lower surface so as to protrude downward.
In addition, the pallet 3 indicated by a chain line is a rear pallet, and shows a state in which the concave portion 3a is engaged with the projection 3c of the front pallet. Reference numeral 22 denotes a string-like member (chain) connecting the pallets 3 to each other.

Reference numeral 15 denotes a pallet variable speed device. As shown in FIG. 7, the pallet variable speed device 15 includes a helical thread groove 16 provided along the rail 11.
a, a sprocket 16 b provided on an extension of the axis of the screw rod 16, a screw rod drive motor 19, a sprocket 19 a provided on the screw rod drive motor 19, and rotation of the screw rod drive motor 19. Screw rod 1
6, a drive shaft 20 wound around the sprocket 16b and the sprocket 19a, and a roller 18 provided on a lower surface of the pallet 3 via a projection 17 provided to project downward. (FIG. 7). Also, this pallet variable speed device 1
Four rails 5 are provided along the rail 11 near the entrance side and the exit side of the forward path and the return path. The spiral thread groove 16a has a shorter pitch at the inlet or outlet end of the linear portions 1a and 1b and a longer pitch at the intermediate side, and engages with the roller 18 on the lower surface of the pallet 3 to form a screw. The pallet 3 is moved by rotating the rod 16.

Reference numeral 26 denotes an intermediate pallet variable speed device. The intermediate pallet variable speed device 26 is provided at an intermediate portion between the two straight portions 1a and 1b, as shown in FIGS. The configuration is similar to that of the pallet variable speed device 15, in which a screw rod 27 having a helical screw groove (not shown, but the same as 16 a shown in FIG. 7) provided along the rail 11, and an axial center of the screw rod 27 are provided. 27, a screw rod drive motor 28, a sprocket 28a provided on the screw rod drive motor 28, and a screw rod drive motor 28
, A coupling shaft 28b for transmitting the rotational force of the screw rod 27 in synchronization with the screw rod 27, a drive chain 30 wound around the sprocket 27a and the sprocket 28a, and the sprocket 27a and the sprocket 28c, and a lower surface of the pallet 3 as shown in FIG. A projection 1 provided so as to project downward.
And a roller 18 interposed therebetween. The screw rod 27 of the intermediate pallet variable speed device 26
Are provided along the rail 11 at an intermediate portion between the outward route and the return route. The spiral thread groove has the same pitch as the long pitch of the pallet variable speed device 15,
The pallet 3 is moved by engaging with the roller 18 on the lower surface of the pallet 3 and rotating the screw rod 27. 28d is a drive shaft for driving the handrail 24, and 29 is a gear box.

Next, the operation of the present embodiment will be described.
In the middle of two screw rods 16 having a short pitch and a long pitch provided on the linear portions 1a and 1b near the arc-shaped portions 1c and 1d of each semicircle, the pitch is the same as the long pitch of the screw rods 16. Since one or two or more auxiliary driving screw rods 27 are provided in accordance with the lengths of the linear portions 1a and 1b, the pallets 3 are connected to each other without being driven by the screw rods 27 in the linear portions 1a and 1b. By means of the member 22, the length of the parts that are attracted to each other and move can be limited to an appropriate length. Therefore, it is not necessary to make the driving horsepower of each of the screw rods 16 and 27 excessive, and theoretically, the moving sidewalk can be lengthened as much as possible. In addition, since the elongation of the cord-like member 22 connecting the pallets 3 does not become excessively large and the difference between the pitch of the screw rods 16 and 27 can be within an allowable range, the screw rods 16 and 27 cannot be driven. Nor.

The present invention is not limited to the above embodiment. For example, when the distance of a moving sidewalk becomes long, a plurality of intermediate pallet variable speed devices may be provided. Various changes can be made without departing from the scope.

[0020]

As described above, according to the present invention, the intermediate pallet variable speed device is provided in the middle of the linear portion for assisting the pallet driving. It has excellent effects such as being able to cope with any length of the machine without increasing the size.

[Brief description of the drawings]

FIG. 1 is an overall view of a horizontal circulation type moving sidewalk of the present invention,
(A) is a plan view and (B) is a side view.

FIG. 2 is a plan view of an intermediate pallet variable speed device.

FIG. 3 is a plan view of a pallet.

FIG. 4 is an overall view of a horizontal circulation type moving sidewalk described in Japanese Patent Application No. 9-280553, in which (A) is a plan view and (B) is a side view.

FIG. 5 is a partially enlarged view of FIG.

6 (A) is a view on arrow AA in FIG. 5, and FIG. 6 (B) is a view on arrow BB in FIG.

FIGS. 7A and 7B are explanatory diagrams of a pallet variable speed device, in which FIG. 7A is a plan view, FIG. 7B is a side view of FIG. 7A, FIG. 7C shows a high speed unit, and FIG. (E) is a diagram showing the getting on / off section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Horizontal circulation type moving sidewalk 1a, 1b Linear part 1c, 1d Semicircular arc-shaped part 2 Elevating part 3 Pallet 15 Pallet variable speed device 16, 27 Screw rod 16a Screw groove 18 Roller 19, 28 Screw rod drive motor 26 Intermediate pallet Variable speed device

Claims (2)

[Claims] 1. A large number of pallets are connected on a rail formed in an annular shape by combining two straight portions and two semicircular arc portions in an endless manner so as to partially overlap each other. The sidewalk is a horizontal circulation type moving sidewalk that is placed on a pallet and moved by a person on the pallet, wherein the straight part is a moving sidewalk for the outward path and the return path, and the straight part near the semicircular arc-shaped part is an entrance side. And the pitch is short on the exit side, the pitch is long on the middle side,
A screw rod having a spiral screw groove provided along the rail is provided, and a roller protruding from the lower surface of the pallet is engaged with the screw groove of the screw rod, and the pallet is moved by rotating the screw rod. The semicircular arc portion moves by engaging the projections on the rear pallet front surface and the front pallet lower surface and pressing each other. In the middle of the linear portion, the cord member connects the pallets together. In a horizontal circulation type moving sidewalk that is adapted to be attracted to each other, one or two or more screw rods having the same pitch as the long pitch of the screw rods near the arc-shaped portion are provided in the middle of the linear portion. The horizontal circulation type moving sidewalk characterized by the following. 2. A total of six screw rods are provided on the entrance side and the exit side of the forward path and the return path, and two screw rods are provided at an intermediate part between the forward path and the return path. 2. The horizontally circulating moving sidewalk of claim 1, wherein the sidewalks are adapted to attract each other.