Handrail inlet element of an escalator, a moving walkway or the

Details Handrail inlet element of an escalator, a moving walkway or the Handrail inlet element of an escalator, a moving walkway or the

1994-06-23

1995-11-14

Valenza, Joseph E.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

Moving hand-support structure

B65G 1700

Patent

active

054658233

DESCRIPTION:

BRIEF SUMMARY
The invention relates to a handrail inlet element of an escalator, a moving walkway or the like, which is disposed in the lower banister area.
An inlet guide in connection with escalators is known from German Patent DE-PS 11 69 629, which discloses a resilient protective frame that almost completely covers the gap remaining between the handrail profile and the adjacent escalator sheathing and which therefore closely surrounds the handrail profile this known inlet guide is provided with a shut-off contact disposed behind the inlet opening, which stops the escalator drive, the switching lever of which terminates in the vicinity of the handrail and is movable in the direction of movement of the handrail for activating the shut-off contact. The protective frame is formed by an elastically giving rubber profile. The switching lever for the switch-off contact rests directly on the rubber profile. The rubber profile, which is hose-like, is adapted to the greatest possible extent to the contours of the handrail profile. For this reason a gap respectively remains in the upper area of the handrail inlet between the handrail inlet element and the handrail wheel, because of which there is a danger of objects being inserted at this place which might cause too late a shut-off and might possibly result in considerable injuries.


SUMMARY OF THE INVENTION

It is the object of the invention to provide a handrail inlet element which is simple to construct and is completely closed in the installed state and that does not have the disadvantages of the prior art.
This object is attained in accordance with the invention by providing two separate elements which can be placed around the handrail and which can be arrested with respect to each other by projections provided on one of the separate elements and engaging corresponding recesses on the other element.
Advantageous further embodiments of the invention ensue from the dependent claims.
Because of the split into two parts of the handrail inlet element, there are no difficulties in removing or re-installing the handrail inlet element, either during initial assembly or during subsequent repairs or replacement of the handrail. The separate elements, which are either non-positively or positively connected with each other, can be connected or separated without problems, so that the assembly/disassembly outlay for the handrail can be reduced a considerable extent. In this case the separate elements preferably have the same shape, so that only a single vulcanizing tool is required. An elastomer bellows is attached by vulcanization to the respectively angularly embodied retaining element, wherein the separate elements (halves) can be preferably fixed with respect to each other using rubber nubs or the like. The rubber nubs can be slightly conical for ease of insertion. The rubber nubs may be used only for fixing and not for connecting the separate elements together. In such a situation it is possible to connect the two retaining elements with each other, if necessary via intermediate elements, after the separate elements have been fastened around the handrail. A safety device for shutting off the escalator drive can be provided in the area of the legs pointing away from the bellows, which reacts to the elastic deformation of the bellows sections.


BRIEF DESCRIPTION OF THE DRAWINGS

The invention is illustrated in the drawings by means of an exemplary embodiment and will be described in what follows. Shown are in:
FIGS. 1 and 2, show a lateral view and a front view, respectively of the handrail inlet element of the invention.


DETAILED DESCRIPTION OF THE INVENTION

FIGS. 1 and 2 show the handrail inlet element 1 of the invention once in a lateral view and again in a front view, wherein the handrail 2 is only sketched. The handrail inlet element consists of two separate elements 3, 4 which are provided with a respective projection 5, 6 engaging a corresponding recess 7, 8 of the other element. The line of contact of the two separate elements 3, 4 has here been identified by 9. Each o

REFERENCES:
patent: 2550918 (1951-05-01), Felix et al.
patent: 3910400 (1975-10-01), Hishitani
patent: 3970187 (1976-07-01), Esaki et al.
patent: 4619355 (1986-10-01), Adrian et al.

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