JPH11246158A - Guide device for passenger conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve comfortableness of a passenger conveyer by providing a relaxation curve guide rail for preventing acceleration of a pallet from discontinuously changing in a contact point part switching from a linear part guide rail to a circular arc-shaped curve part guide rail or from the circular arc- shaped curve part guide rail to the linear part guide rail. SOLUTION: In this guide device, a plurality of pallets endlessly connected mutually with the fellow pallets by a connection member are circulated along a leading guide rail provided on a route, in the route formed in loop shape in a horizontal surface. Here, relaxation curve guide rails 3, 4 for preventing acceleration of the pallet from discontinuously changing are provided in a contact point part where the leading guide rail guiding a guide roller rotated around a vertical shaft provided downward from a tread part of each pallet is switched from a linear part guide rail 1a to a circular arc-shaped curve part guide rail 2 or from the circular arc-shaped curve part guide rail 2 to a linear part guide rail 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a guide device for a passenger conveyor in which a plurality of pallets, which are connected endlessly to each other through a path formed in the form of a loop, are circulated along guide guide rails provided on the path.

[0002]

2. Description of the Related Art Passenger conveyors are known to include a horizontally moving moving sidewalk that moves only in the horizontal direction and a vertically moving escalator that moves up and down in an oblique direction. In general, the transport route is a straight route, and the transport route may be an arbitrary combination of a straight line and a curved line, or may be a combination of a horizontal route and a diagonal ascending / descending route. Those that have not been put to practical use.

[0003] Further, the conventional passenger conveyor uses a system in which a passenger is conveyed on the upper surface of a tread plate constituting the conveyor, and the tread plate is turned over at a down entrance and returned to an entrance or an exit, so that the tread plate is returned to the entrance. In the meantime, the treads have not contributed any passengers.

Accordingly, the present inventors have proposed a passenger conveyor in which a transfer route can be set arbitrarily and a tread plate can always contribute to the transfer of passengers in Japanese Patent Application No. 9-275357.

[0005] This passenger conveyor comprises running wheels, guide rollers.
A pallet provided with a pallet and a tread portion, the passenger conveyor being conveyed along an endless traveling rail and a guide rail, wherein the tread portion has an upper portion of the pallet and front and rear ends thereof are formed in a curved shape. A joint body attached to the lower surface of the tread plate portion and provided with a shaft system that allows vertical movement, lateral swing, and horizontal rotation of the pallet; and a pallet having one end attached to the lower surface of the tread plate portion and the other end adjacent thereto. And a connecting rod attached to the joint body, wherein the pallet is connected endlessly and moves.

[0006] The characteristic feature is that the running wheel and the guide roller are mounted on the lower surface of the tread plate portion via supporting legs of a predetermined length, and the running wheel and the guide roller are directly connected to the tread plate portion. Having a pallet dedicated to the flat path attached to the lower part of the
One line is guided by the guide rail.

The following describes a conventional passenger conveyor guide device including the above-described guide rollers and guide rails.

(1) One Guide Roller In this guide device, as shown in FIG. 6, one guide roller 21 is connected below the stepping plate 23 of the pallet 22. Vertical axis 2 connected to rod 24
5 and is guided while traveling in contact with two guide rails 26a and 26b provided at equal intervals.

In FIG. 6, reference numeral 27 denotes a traveling wheel of the pallet 22, reference numeral 28 denotes a traveling rail of the traveling wheel 27, and reference numeral 29 denotes a drive chain of the pallet 22.

(2) Two Guide Rollers In this guide device, two guide rollers 21a and 21b are provided below the step plate 23 of the pallet 22 as shown in FIG. Around the two vertical shafts 25a and 25b connected to the supporting leg 30, and one of the guide rollers 21a is one of the two guide rails provided at equal intervals. While contacting the guide rail 26a, the other guide roller 21b advances while being guided while contacting the other guide rail 26b.

In FIG. 7, reference numerals 27a and 27b denote running wheels of the pallet 22, reference numeral 29 denotes a drive chain of the pallet 22, and reference numerals 31 and 32 denote running wheels 27a and 27.
b Each supporting leg.

[0012]

However, the conventional passenger conveyor guide device described above has the following problems.

Guide rollers for pallets of passenger conveyors
The guide shape of the guide rail is guided by a combination of a straight line portion and an arcuate curved portion of the path of the passenger conveyor.
As shown in FIG. 8A, two parallel linear guide rails 41a and 41b and an arc-shaped curved guide rail 42a connected to both ends of the linear guide rails 41a and 41b. 8b, or four straight part guide rails 51a, 51b, 5b which form a substantially square as shown in FIG. 8 (b).
Four arc-shaped curved part guide rails 52a, 52 connecting adjacent linear part guide rails 1c and 51d.
b, 52c, and 52d.

The above-mentioned curved portion guide rail is generally formed in an arc shape for ease of manufacture. Therefore, the pallets of the passenger conveyor traveling along the guide rails travel from a straight path to an arc path or from an arc path to a straight path.

As described above, when the pallet of the passenger conveyor is traveling at a constant speed V when the route changes, the following phenomenon occurs. That is, as shown in FIG.
The pallet 22 travels from the straight section guide rail 51a (section indicated by A) to the straight section guide rail 51b (section indicated by C) via an arcuate curved section guide rail 52a (section indicated by B). In the case, the passenger center of gravity 2 of the pallet 22
The passenger riding on 2a feels a change in the longitudinal and lateral acceleration and angular acceleration for the following reasons.

That is, the coordinate system (s, t) centered on the center of gravity 22a of the passenger of the pallet (the s axis is the traveling direction of the pallet 22 and the t axis is the direction orthogonal to the traveling direction of the pallet 22) is the absolute coordinate axis. The coordinate system (x, y) (the x-axis is inclined with respect to the longitudinal direction of the linear portion guide rail 51a, and the y-axis is inclined with respect to the coordinate axis in the direction orthogonal to the longitudinal direction of the linear portion guide rail 51a). The acceleration a _{s in} the s-axis direction of the point 22a (forward-backward acceleration for the passenger), the acceleration a _{t in} the t-axis direction of the passenger center of gravity 22a (lateral acceleration in the passenger), and the absolute coordinate system ( The angular acceleration aγ of the coordinate system (s, t) with respect to (x, y) changes.

The passenger turns forward or backwards, swings right and left, or rotates around himself or herself due to such a change in the acceleration and the angular acceleration. To be in such a state is to make passengers feel uncomfortable, and it is necessary to take countermeasures, but such a countermeasure is not applied to conventional passenger conveyor guide devices. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and has as its object to provide a passenger conveyor guide device that does not make passengers feel uncomfortable.

[0019]

SUMMARY OF THE INVENTION A passenger conveyor guide device according to the present invention comprises a plurality of pallets connected endlessly to each other by a connecting member through a loop formed in a horizontal plane. A guide device for a passenger conveyor circulating along a guide guide rail provided on the path, comprising a guide roller rotating about a vertical axis provided below a step plate portion of each pallet. The acceleration of the pallet is not at the guiding guide rail to be guided, at the contact point where the linear guide rail is switched from the linear guide rail to the curved guide rail or from the curved guide rail to the linear guide rail. A relaxation curve guide rail for preventing continuous change is provided.

The inventors have determined how the longitudinal acceleration, the lateral acceleration and the angular acceleration change with time before the pallet enters the linear path again from the linear path via the arcuate path. Was investigated. as a result,
It has been found that both the acceleration and the angular acceleration change discontinuously at the contact point where the path changes from the straight path to the arc path or from the arc path to the straight path, and does not change much in the arc path section.

This is because the curvature of the straight path is 0, whereas the radius of the arc path is relatively small, and the curvature is relatively large with respect to 0 of the straight path. This is considered to be due to the occurrence of a part.

Therefore, according to the present invention, between the straight guide rail and the arcuate curved guide rail, the relaxation curve guide rail having a curvature larger than 0 and smaller than the curvature of the curved guide rail. Was provided.

[0023]

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

FIG. 1 is a plan view showing a connecting portion between a linear guide rail and an arcuate curved guide rail of a passenger conveyor guide device according to an embodiment of the present invention.

The guide rail of the guide device - in Le, straight section guide rail - Le 1a (section indicated by L ₁₎ and arc-shaped curved portion guide rail - between Le 2 (section indicated by C), the linear portion guide rail - Le 1b (L section indicated by ₂₎ an arcuate curved portion guide rail - between Le 2 (section indicated by C), the transition curve guide rail - indicated by (section indicated by T ₁₎ Le 3 and 4 (T ₂ Sections) are arranged.

The above-described relaxation curve guide rails 3 and 4
Is known as a clothoid curve whose curvature changes strictly in proportion to the length of the curve from the origin.
A cubic curve or a Lemniskate curve is known as an approximately proportional curve. Whichever of these curves is employed, the curvature of the path can be continuously changed. As an example, the acceleration acting on the passenger when the Lemniskate curve is a transition curve will be described.

FIG. 2 is a graph showing a Remniskate curve. The coordinates of a point on this Lemniskate curve are represented by P (x,
Assuming y), the basic equation of the Lemniskate curve can be represented by the following equation (1).

[0028]

(Equation 1)

In the equation (1), ψ is a parameter representing an angle formed by a line connecting the origin O and the point P (x, y) shown in FIG. 2 with the x axis, and κ is represented by the equation (2). Is a constant.

[0030]

(Equation 2)

In the equation (2), ψ ₀ is the angle formed by the line connecting the origin O and the point Q shown in FIG. 2 with the x-axis, and γ is the radius of curvature at the point Q.

In the Remniskate curve represented by the equation (1), the curvature is 0 at the origin O, and the curvature is 1 / at the point Q.
γ, and between the origin O and the point Q, the curvature increases approximately in proportion to the length of the path from the origin O.

[0033] Thus, the transition curve guide rail - Remunisuke use as Le 3 and 4 - DOO curve section, line and Remunisuke angle of [psi ₀ between x-axis drawn from the origin O and the origin O - and DOO curve Are the portions between the points Q where they intersect.
Of course, the radius of curvature at the point Q must be the same as the radius of curvature of the arcuate guide rail, but the angle ψ ₀ that determines the point Q can be arbitrarily set by the designer. Then, by increasing the [psi _0, it may increase the length of the transition curve, the ride is improved, the production cost is high. Conversely, by reducing the [psi _0, it shortens the length of the transition curve, the ride is not very good, the production cost can be kept low.

The transition curve curve having the shape of the curve of this portion
By connecting the origin O side of the rail 3 or 4 to the linear guide rail 1a or 1b and connecting the point P to the arcuate curved guide rail 2, the curvature is continuously changed on the entire path. Can be done.

FIG. 3 shows a pallet having one straight portion guide rail.
The traveling direction of the pallet from the pallet through the arcuate curved part guide rail to the other straight part guide rail (s)
Is a graph showing changes with time of the acceleration a _s axial),
(A) is the case of the guide device of the present invention, and (b) is the case of the conventional guide device.

Further, FIG. 4 is a graph showing temporal changes in acceleration a _t in the direction (t direction), with the same perpendicular to the traveling direction of the pallet, when the guide device of the present invention (a),
(B) is a case of the conventional guide device.

FIG. 5 also shows the angular acceleration a of the pallet.
7 is a graph showing a change over time in γ, where (a) is the case of the guide device of the present invention, and (b) is the case of the conventional guide device.

The guide rail of the conventional guide device which has obtained the above data has a radius of curvature of 1.5 m for the arcuate curved part guide rail, and the other condition is that the pallet is connected to the pallet. The length of the bar is 0.603 m, the distance between the connecting point of the connecting bar and the center of gravity of the passenger is 0.275 m, and the traveling speed V of the pallet is 40 m / min.

On the other hand, in the case of the guide device of the present invention, the parameter of the Lemniskate curve is located between the linear guide rail and the curved guide rail (the radius of curvature is 1.5 m, which is the same as the conventional one). In this example, a relaxation curve guide rail in which the curve ψ ₀ is (1/36) πrad is inserted, and other conditions are the same as those of the conventional art.

As can be seen from FIGS. 3, 4 and 5,
In the case of a conventional guide device, when the vehicle enters the arcuate curved guide rail from the linear guide rail or enters the linear guide rail from the arcuate curved guide rail, both the acceleration and the angular acceleration are changed. In contrast, in the case of the guide device of the present invention, both the acceleration and the angular acceleration change continuously in any running section.

For this reason, in the case of the guide device of the present invention, the ride comfort due to the rapid change in acceleration and angular acceleration is not felt.

As can be seen from FIGS. 4 and 5,
Since the maximum value of the absolute value of the acceleration is also smaller than in the past, the feeling of pressure caused by the increase in the acceleration is not felt.

[0043]

According to the present invention, the riding comfort of the passenger on the passenger conveyor is improved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a guide device for a passenger conveyor according to an embodiment of the present invention;
FIG. 4 is a plan view showing a connection portion with the console.

FIG. 2 is a graph showing a Lemniskate curve.

FIG. 3 is a graph showing a temporal change of acceleration in the traveling direction of the pallet from the time when the pallet passes through the curved guide rail of an arc shape from one straight part guide rail to the time when the pallet enters the other straight part guide rail. (A) is the case of the guide device of the present invention, and (b) is the case of the conventional guide device.

FIGS. 4A and 4B are graphs showing changes over time in acceleration in a direction orthogonal to the traveling direction of the pallet, where FIG. 4A shows the case of the guide device of the present invention, and FIG.

FIG. 5 is a graph showing the change over time of the angular acceleration aγ of the pallet, where (a) is the guide device of the present invention and (b)
Is the case of the conventional guide device.

FIG. 6 is a front view of a conventional guide device when there is one guide roller.

FIG. 7 is a front view of a conventional guide device when there are two guide rollers.

FIG. 8 is a plan view showing a loop shape of a conventional guide rail, where (a) is an elliptical shape and (b) is a substantially square shape.

FIG. 9 is an explanatory view showing changes in pallet acceleration and angular acceleration.

[Explanation of symbols]

 1a, 1b Straight part guide rail 2 Arc shaped curved part guide rail 3 Relaxation curve guide rail 4 Relaxation curve guide rail

Claims (1)

[Claims] 1. A path formed in a loop shape in a horizontal plane and a plurality of pallets connected endlessly to each other by a connecting member along a guide rail provided on the path. A guide device for a circulating passenger conveyor,
A guide guide rail for guiding a guide roller rotating about a vertical axis provided below the tread plate portion of each of the pallets, from a straight portion guide rail to an arcuate curved portion guide rail or a circle. A passenger conveyor characterized in that a transition curve guide rail for preventing discontinuous change in pallet acceleration is provided at a contact point where an arc-shaped curved part guide rail is switched to a straight part guide rail. Guide device.