JPS60232390A - Main frame for curve escalator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] This invention relates to a main frame of a curved escalator.

[Prior art]

2. Description of the Related Art A curved escalator in which steps move in a spiral manner is known, for example, as shown in Japanese Patent Publication No. 48-25559. Such curved escalators are shown in Figures 1 and 2.
This will be explained using figures.

As shown in FIG. 1, in the curved escalator, a conveying path 2 along which a step 1 moves is formed in a spiral shape, and in a horizontal projection plane, as shown in FIG. 2, it is formed in an arc shape. In addition, the conveyance path 2 has the horizontal running section 211゜2b of step 3 at the top and bottom,
A sloped portion 2e having upper and lower portions 2c+2d at both ends is formed between these portions. The step 1 is connected to an endless step chain 4 housed within the main frame 3 and is driven together with a handrail 5 by a drive device 6.

and - such a curved escalator has the shape of a circular arc of constant curvature in the horizontal projection plane, and in the side projection plane the steps transition from the upper or lower horizontal running section via the inclined section to the lower or upper horizontal running section. Because the shape follows this trajectory.

The truss of the main frame also has a horizontal projection plane in the shape of an arc or a polygon similar to this, and the side projection plane has a horizontal part at the upper and lower parts and an inclined middle part following the locus of the steps described above. It is in the shape of . Still, the main frame truss is 1.Similar to normal straight escalators, multiple truss units are connected in series in the longitudinal direction of curved escalators, but in conventional curved escalators, consideration is not given to the connection position of the truss units. It wasn't.

[Summary of the invention]

This invention has been made in view of the above-mentioned circumstances, and includes connecting surfaces of upper and lower truss units at positions corresponding to the transition from the horizontal running part of the step to the inclined part, and the horizontal part of these truss units. The present invention aims to provide a main frame of a curved escalator that facilitates the manufacture, assembly, and transportation of the upper and lower units by using only the following configuration.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 3 to 7.

This embodiment is the main frame of the curved escalator shown in FIGS. 1 and 2, and in the figures from FIGS. has upper and lower truss units 8.9 and an intermediate truss unit 10 arranged between them. The upper and lower truss units 8.9 are provided at positions where the joining surfaces with the intermediate truss unit 10 correspond to the points where the steps of the conveyance path transition from the horizontal running section to the inclined section, and are composed of only horizontal sections. . The intermediate truss unit 10 is located above the conveyance path.
An upper downward section 10a including a portion corresponding to the downward section.

10b and one or more straight sloped portions 10c disposed therebetween are connected. The upper, lower and middle truss units 8.9 and 10 are upper.

Lower chord members 11 and 12 and vertical members 13 installed between them
Diagonal members 1 are arranged at approximately diagonal positions of the quadrilateral formed by the cross members 14, the upper and lower chord members 11, 12, and the longitudinal members 13.
It consists of 5.

In the nine embodiments constructed as described above, the truss 7 has a joint surface connecting the truss units at a position corresponding to the transition point between the horizontal running part and the inclined part of the step, so that the upper and lower truss units 8 and 9 can be composed of only horizontal parts. therefore.

The upper and lower truss units 8.9 have a circular arc shape or a polygonal shape similar to this in the horizontal projection plane, but since the upper and lower chord members 11.12 are both horizontal in the side projection plane, they cannot be placed on a horizontal surface plate. It can be easily assembled, and no extra tools are required, making it easy to assemble.

Further, since the upper and lower truss units 8.9 can be transported while being placed on a flat surface, extra packaging for transportation is not necessary.

Note that the present invention can also be applied to a curved escalator in which the radius of curvature of the horizontal projection plane is different in the intermediate inclined part, the upper and downward parts, and the upper and lower horizontal parts.

〔Effect of the invention〕

As explained above, in this invention, the joint surfaces of the upper and lower truss units are provided at the position corresponding to the transition from the horizontal running part to the inclined part of the step, and these truss units are made only in the horizontal part. Fabrication of upper and lower truss units.

Easy to assemble and transport, they can provide the main frame of an inexpensive curved escalator.

[Brief explanation of the drawing]

Figure 1 is a front view showing an example of a conventional curved escalator;
2 is a side view, FIG. 3 is a plan view showing a main frame truss according to an embodiment of the present invention, FIGS. 4 and 5 are developed views of the outer and inner surfaces of the truss, and FIG. 6 7 is a partially enlarged plan view of the same truss, and FIG. 7 is a partially enlarged side development view of the same truss. 1...Step, 2...Transport path + 2a, 2b...
・Horizontal running part, 2e... Inclined part, 3... Main frame, 7.
··truss. 8.9... Upper and lower truss units, 10... Intermediate truss unit. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals. Agent Masuo Oiwa (2 others) Figure 1 Figure 2 2. L Figure 3 Figure 4 Figure 5/θl

Claims (1)

[Claims] In the main frame of a curved escalator in which a truss is constructed by connecting multiple truss units in series, the joint surface of the upper and lower truss units is provided at a position corresponding to the transition from the horizontal running part of the step to the inclined part, and the upper and a main frame of a curved escalator, characterized in that the lower truss unit is configured only in the horizontal section.