JPH0214277B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a balustrade device for a curved escalator, and more particularly to an improvement in a movable handrail structure that moves along the outer edge of the balustrade.

[Conventional technology]

Figures 4 to 8 show a conventional handrail device for a curved escalator as shown in, for example, Japanese Utility Model Application Publication No. 59-83860. main frame, 2
3a is an outer railing erected along the outer edge of the arc of the main frame 1; 3b is the main frame; 1, an outer handrail movably engaged along the outer edge of the outer handrail 3a, and 4b an outer edge of the inner handrail 3b. an inner side moving handrail that is movably engaged along a section of the moving handrail 4;
a, 4b, horizontal parts 5 and 6 at the upper and lower ends, a constant slope part 7 in the center, an upper curved part 8 formed between the horizontal part 5 at the upper end and the constant slope part 7, and a horizontal part at the lower end. A lower curved portion 9 is formed between the lower curved portion 6 and the constant slope portion 7, respectively.

Incidentally, a curved escalator is an escalator in which a step 2 having a horizontal tread surface is moved in a spiral shape with the tread surface kept horizontally around point O in FIG. It is made into a fan shape centered on point O. Also, steps 2
In order to keep the step horizontal at all times, a pair of guide rails (not shown) on both sides of the step below the step 2 are designed to always have the same height on a radial line centered on point O. Therefore, the points where the step 2 and its guide rail change from the horizontal part to the curved part and from the curved part to the central, constant slope part exist on a radial line centered on point O.

Now, move the path of the moving handrails 4a and 4b to the step 2 above.
If arranged in the same way as the guide rail, the following configuration will be obtained.

That is, the point at which the outer moving handrail 4a moves from the horizontal part 5 to the upper curved part 8 is point A, the point at which the outer moving handrail 4a moves from the upper curved part 8 to the constant slope part 7 is point B, and the outer moving handrail 4a is at a constant slope. The point where the handrail 4a moves from the lower curved part 9 to the lower curved part 9 is the point C, and the outer moving handrail 4a moves from the lower curved part 9 to the horizontal part 6.
The point at which it moves to is point D, and each of the above points A, B, C,
Let the points where the line connecting points D and O intersect with the inner moving handrail 4b be point E, point F, point G, and point H,
A-B, C-D, E-F, G-H in the unfolded state of each handrail 3a, 3b shown in Fig. 6 and Fig. 7.
, the horizontal distances J and K of the arcs of the outer moving handrail 4a are longer than the horizontal distances J' and K' of the arcs of the inner moving handrail 4b, and the inclination angle of the outer handrail 3a θ ₁ becomes smaller than the inclination angle θ ₂ of the inner balustrade 3b. Therefore, the radii of curvature R ₃ and R ₄ of each curved portion 8 and 9 of the outer moving handrail 4a in the development plane are larger than the similar radii of curvature R ₅ and R ₆ of the inner moving handrail 4b, and R ₃ > R ₅ , R ₄ > R ₆ . Furthermore, when the curved escalator is viewed in a horizontal projection plane as shown in Fig. 5, the horizontal bending radius R ₁ of the outer moving handrail 4a is
is larger than the horizontal bending radius R ₂ of the inner moving handrail 4b, and R ₁ >R ₂ .

[Problem that the invention seeks to solve]

In the conventional curved escalator handrail device as described above, each curved portion ₈ , of the outer moving handrail _4a , as shown in FIG.
The path at 9 becomes gentle as indicated by symbols L and M, and on the other hand, each curved portion 8,
The path at 9 will turn sharply as indicated by symbols N and P. When you actually look at this, as shown in Figure 8, the N section appears sharp and the L section appears gentle, creating an unbalanced curvature between the outside and inside, giving passengers a sense of discomfort. It was hot.

This invention was made in order to solve this problem, and the curvature of each curved part of the handrail that can be moved inwardly and outwardly is made as close as possible in three-dimensional space, so that the handrail can move inwardly and outwardly during the transition process. To obtain a handrail device for a curved escalator that does not cause a feeling of imbalance between handrails, does not give a sense of discomfort to passengers, is well-balanced in appearance, and has a stable riding comfort.

[Means for solving problems]

The balustrade device for a curved escalator according to the present invention is characterized in that the curvature of the upper curved part and the lower curved part of the inner handrail in a state where the balustrade is developed in a plane along a vertical curved surface through which the center line of the moving handrail passes. The radius is equal to or larger than each radius of curvature of the upper curved portion and lower curved portion of the outer moving handrail in the development plane.

[Effect]

In this invention, since the radius of curvature of each curved part of the inner moving handrail is equal to or larger than the radius of curvature of each curved part of the outer moving handrail, the curvature of each curved part in the three-dimensional space is calculated from the radius of curvature of each curved part of the inner moving handrail. They can be equal or very close.

〔Example〕

1 to 3 show an embodiment of the present invention, and the same reference numerals as in FIGS. 4 to 8 indicate the same or corresponding parts. In this embodiment, the radii of curvature R ₅ and R ₆ in the development plane of each curved portion 8 and 9 of the inner handrail 4b are the same as the radius of curvature of the outer handrail 4a.
It is set to be larger than or at least equal to R ₃ and R ₄ , and has the relationship of R ₃ ≦R ₅ and R ₄ ≦R ₆ .

Therefore, each radius of curvature R ₃ , R ₄ , R ₅ ,
By setting R ₆ , the following effects can be obtained.

That is, for example, regarding the upper curved portion 8, the curvature in the three-dimensional space of the upper curved portion 8 of the inner moving handrail 4b is determined by the lateral bending radius _R2 and the radius of curvature _R5 . Similarly, the curvature in the three-dimensional space of the upper curved part 8 of the outer moving handrail 4a is determined by each radius R ₁ ,
Determined by R ₃ .

Here, since R ₁ > R ₂ and R ₃ ≦ R ₅ ,
In the three-dimensional space, these are combined, and the combined curvature by each radius R ₁ and R ₃ and each radius R ₂ ,
The curvature synthesized by R ₅ can be made equal to or very close to the curvature. As a result,
As shown in Figure 3, the curvatures in the three-dimensional space of points N and L, and points P and M are close or equal, and there is no sense of imbalance between the inner and outer moving handrails during the transition process. To provide a handrail device for a curved escalator that does not give passengers a sense of discomfort, has a well-proportioned appearance, and provides a stable ride.

〔Effect of the invention〕

As explained above, in this invention, the radius of curvature within the unfolded plane of the upper curved part and the lower curved part of the inner moving handrail when the handrail is developed flatly along the vertical curved surface passing through the center line of the moving handrail, The radius of curvature in the development plane of the upper and lower curved parts of the outer moving handrail is equal to or larger, so the curvature in the three-dimensional space of the upper and lower curved parts of each moving handrail is set to a similar value. A curve that provides a stable ride comfort that does not create an unbalanced feeling between the inner and outer moving handrails during the transition process, does not give passengers a sense of discomfort, and is well balanced in appearance. An escalator balustrade device is obtained.

[Brief explanation of drawings]

FIG. 1 is a side development view of an outside balustrade showing one embodiment of the present invention, FIG. 2 is a side development view of a similar inside balustrade, FIG. 3 is a perspective view showing the effects of this invention, and FIG.
The figure is a side view showing the handrail device of a conventional curved escalator, FIG. 5 is a similar plan view, FIG. An enlarged developed cross-sectional view taken along the - line in the figure corresponds to FIG. 2, and FIG. 8 is a perspective view showing the conventional drawbacks and corresponds to FIG. 3. 1...Main frame, 3a...Outer railing, 3b...Inner railing, 4a...Outer moving handrail, 4b...Inner moving handrail, 5, 6...Horizontal part, 7...Constant slope part, 8
...Upper curve, 9...Lower curve. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] 1. A main frame that is annular in the horizontal projection plane, an outer balustrade and an inner balustrade that are respectively erected on both edges along the length of the main frame, and movably engaged with the outer edge of each balustrade at the upper and lower ends. It has a horizontal part, a constant slope part at the center, an upper curved part formed between the horizontal part at the upper end and the constant slope part, and a lower curved part formed between the horizontal part at the lower end and the constant slope part. In a device equipped with an outer movable handrail and an inner movable handrail, the upper curved portion and the lower curved portion of the inner movable handrail when each of the above-mentioned handrails is expanded flatly along a vertical curved surface passing through the center line of the movable handrail. A balustrade device for a curved escalator, characterized in that the radius of curvature within the development plane is equal to or larger than each radius of curvature within the development plane of the upper curved portion and the lower curved portion of the outer moving handrail.