SU1684222A1 - Escalator - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to lifting and transport machinery, namely, continuous passenger transport. The aim of the invention is to increase safety. The escalator contains a staircase consisting of steps 3 with profiled flooring, and entrance horizontal platforms with combs. Each stage 3 of the escalator is equipped with restrictive elements 7, located on the sides of the steps in the plane. The bottom edge of each restrictive element has a length equal to the step width, the front and rear faces are made with a curvature that repeats the 9th step riser, the rear edge height is greater than the step riser height, and the upper edge is sloped in the direction of the front step edge. Protective aprons 12 are fixed on the lower portion of the balustrades and are located above the limiting elements with an overlap and are made in the zones of height variation of the steps vary in height. 5 il.

Description

The invention relates to a lifting machinery industry, namely to a continuous passenger transport, in particular to escalators.

The purpose of the invention is to increase safety.

FIG. 1 shows an escalator, a general view; figure 2 is a detail of the staircase, the section; on fig.Z - axonometric image of the removable links of the decking steps with a restrictive element; figure 4 - section aa in figure 2: figure 5 - section bb in figure 2.

The escalator contains a staircase that has an inclined section 1 with an inclination angle equal to the angle of inclination of the escalator, and horizontal sections 2. The staircase consists of steps 3 with a fixed

they have profiled (from protrusions and depressions) precast floor 4 (consisting of middle and two extreme links), horizontal entrance platforms with combs 5. Moreover, the teeth of the combs are inserted into the depressions of the profiled flooring 4, and slots 6 are made in the entrance platforms with combs 5 Steps 3 are provided with restrictive elements 7, located on the sides of the steps in a plane perpendicular to the plane of step 3, made flush with the side end surfaces of the steps 3 and rigidly fixed or directly on the step neither 3 (on its frame), or on profiling flooring 4 steps 3. The lower edge of each restrictive element 7 has a length equal to the width of steps 3, and one end (not

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shown) and the rear 8 faces are made with a curvature that repeats the curvature of the riser 9 steps 3. The height of the rear face 8 is greater than the height of the risers 9 steps 3. The upper edge 10 of the restriction element 7 is beveled in the direction of the front edge

11 steps 3 at an angle equal to the angle of inclination of the escalator.

The escalator contains protective aprons 12 fixed on the lower sections of the balustrade (not shown) of the escalator, located above the corresponding restrictive elements 7 with a lap over them and having steps in the zones of height variation (m, e, 3 of the transition zones of the staircase from the horizontal section 2 to the inclined section 1) a variable height, so that the lower edge 13 of the protective apron

12 always remains parallel to the line of movement of the end point of the front face of step 3, and its upper edge 14 is parallel to the line of movement of the upper point of the restriction element 7. Slots 6 in the input horizontal areas with combs 5 are made coaxially with restrictive elements 7. Moreover, in the upper sections of the restrictive elements 7, holes 15 can be made in which the rollers 16 are installed. In order to form steps from the steps of the stairs, the steps are interconnected by traction chains (not shown), and are provided with and and auxiliary sliders (not shown) mounted on the respective guides.

Restrictive elements 7 are plates and can be made, for example, of metal, flooring material or any hard plastic. The rigid connection of the limiting elements 7 with the frame of the stage 3 or with the floor of the 4 stage can be ensured, for example, by welding or by means of a screw connection.

The height of the apron 12 on the horizontal portions of the staircase is advisable to be slightly larger (1.5-2 cm) than the height of the rear face 8 of the restrictive element 7, so that the apron 12 covers the area of the restrictive element with roller 16, and on the inclined sections - approximately 4 6 cm

The length of the slit b in the entrance horizontal areas with combs 5 is generally determined by the radius of rotation of the staircase around the axes of the drum chains. In practice, it is sufficient to have the length of the slot 6 greater than or equal to

1.2 steps of width 3 in order to ensure guaranteed smooth (without scratching) passing through it of the restriction element 7 when lowering it into the machine

department.

The width of the slot 6 should be sufficient to allow the restriction element to pass through it, taking into account the diameter of the roller 16 located in the hole 15,

made in the upper part of the restrictive element 7.

In order for the protective apron 12 to not step 3, interfering with the free movement of the escalator, it is necessary to position it above the restriction element 7 so that the lower edge of the apron 12 is distant from the end point of the front edge 11 of level 3 from a distance of 2 cm. this height of the front face of the restrictive element 7 must be at least 4-6 cm,

The escalator works as follows.

When the stairway moves along with the steps 3, the steps 3 rigidly fixed on the frame or on the shaped floor 4 steps 3 are moved too. The limiting elements 7. Since the length of the lower face of the plate is restrictive

element 7 is equal to the width of the step 3, then during the movement a continuous solid barrier is formed, preventing contact of foreign objects, for example

fixed surface balustrades escalator.

Claims (1)

Claims of the invention An escalator containing a staircase consisting of steps with profiled flooring, combs with combs, the teeth of which are inserted into the troughs of the step floors, and a safety device including attached to each step in the plane, perpendicular to the flooring, restrictive elements, the upper edge of each of which is beveled, and protective aprons located on the balustrade, about the fact that, in order to increase safety, the height of the rear the edges of the limiting element are larger than the height of the riser; each limiting element is provided with a roller placed in its upper part above the plane of the floor of the overlying stage, and the protective apron is separated from the balustrade by the size of the protruding part of the roller. Phage 2 W eleven 15 at 3 FIG. four ti J V Lllallell rJ7 f fSJJJJJJJJJJS} ± 3 / Figure 5