DE7339226U - Endless circumferential handrail for a moving conveyor, especially for escalators and moving walks - Google Patents

Description

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Applicant; Rheinstahl Eggers - Kehrhahn GmbH, Hamburg /

Endless circumferential handrail for a vehicle, ins- I

especially for escalators and moving walks

The innovation looks at an endless handrail for an escalator or a moving walk from the eirer special chain (bushing or roller chain) with rearranged Plastic segments are made and synchronized with the step or Pallet speed is moved.

A known Ausführungsforin a handrail has a endless chain of nested plastic links that have a toothing for the drive on their underside wearing.

Another known embodiment of a handrail has a tension member made of rubber with a steel cord insert of approximately rectangular cross-section, over which individual plastic segments are clamped at regular intervals.

The original, well-known embodiment of a handrail consists of a C-shaped liummi profile with vulcanized Tension members and an inner layer made of plastic or plastic fabric with good sliding properties.

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The embodiments mentioned have more or less severe wear and tear, which will last a few years limited and can lead to operational disruptions at an early stage. Furthermore, due to the low breaking strength of the relevant Material hering the resilience of the handrail.

The wear in these known embodiments is caused or impaired by circumstances such as bending changes at the balustrade ends at the handrail returns, high frictional resistance on the guides and heavy use on the handrail drive.

A handrail for escalators or moving walks must be arranged in accordance with the applicable guidelines, i.e. the handrail must be guided safely on the visible part and without the risk of trapping for pingers of the passengers can be moved synchronously with the conveyor speed.

"The innovation is based on the goal, here on the one hand To create an operationally safe handrail and, on the other hand, to design the handrail in such a way that the wear and tear is reduced Y.iniir.ur. is reduced by a significantly higher breaking strength, the ~. can be increased with a corresponding chain.

An innovation also has the task of creating a form-fitting and thus to ensure slip-free handrail drive by means of a chain, with which a more even and smooth movement of the conveyor synchronous run can be guaranteed.

An embodiment of the innovation is explained below with reference to a drawing. In the drawing demonstrate:

Fig. 1 A cross section through a handrail with a roller link chain as a supporting component and an attached plastic segment as a handle.

Fig. 2 A plastic segment in the view. Fig. 3 A plastic segment in longitudinal section.

Fig. 4- A plastic segment of a different type in the Longitudinal section.

Fig. 5 A side view of the handrail with lined up Plastic segments according to FIG. 1.

Fig. * A longitudinal section through the runway after the Line II - II of FIG. 1

The handrail shown in the drawing has a chain as a central and load-bearing element, which can be either a bushing or a roller chain.

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Outer plates 1, inner plates 2, chain pins 3 and bushes Its task is to transfer the drive force without slippage and to elongate the handrail, stretch and act as a spring turn off.

On each of the protruding chain pins 3, a plastic segment, the length of which is exactly the same as the chain pitch, is fitted with its two clamps 5 and thereby connected to the chain.
The roundings * of the segment fit with little air- • · ■ * ·% ■ «■ T« ^ λ · λιπ ^ v ^ * A w Λ · Α ^ vr · «^ v A ^ · Π · 4 λ * -Vv ^ vw Λ · i ^ r · »nwr \ υμί wr ·· ^ · νη * 7 Λ JiV C · V» * QW «a /" * Vv ^

beard segment.

The surface 8 of the segment also merges to a certain extent seamlessly with the neighboring segment, since the common segment The pivot point for segments and chain is determined by the chain pin 3.

This means that the entire grip surface is the one behind the other Segments of a handrail free of any risk of entrapment, both in straight lines and in curved movements.

One embodiment of the invention is that the Ket tenbolzen 3 slide in plastic guides 9, which their-

peits in wells 10 of the HandXäunäfiluJt'räcTer.prof Her. I ι are stored.

Another embodiment of the innovation is shown by Fi * -. i. Here the plastic segment was designed in such a way that the ιlemmhalter 5 in the horizontal direction aur the l'.et ', enoolzen? be pressed. As a result, the individual segments cannot be removed from their clamping position upwards. Dismantling is possible by taking special precautions in the handrail return part.

Since the plastic segments according to Fii ^r . 1 intermesh without gaps due to their roundings fi and recesses 7, a demonstration of the individual plastic segments on the visible part of the handrail only through a simultaneous excavation of several segments, whose item no. hl of σβτι existing air gap between rounding £ and Aus? pnrunf; 7 is dependent.

In the embodiment according to FIG. 1, a segment exchange can therefore also be used can be made on the visible handrail track.

Claims (3)

Protection claims 1. Endlessly revolving handrail for a conveying system, in particular for escalators and moving walks, characterized in that a special chain (bushing or roller chain) is used as the load-bearing traction and drive element, the zE consisting of the outer link plates M), inner link plates (2), Chain pins (3) and bushings ^ 4) is formed. It is also characterized in that plastic segments with clamp holders (5), lateral curves (&), recesses (7) and surfaces (8) are clamped onto the protruding chain pins ^ 3) and thus form a seamless link handrail. 2. Handrail according to claim 1, characterized in that the above chain pins (3) in or on the plastic rails (ty) slide and are safely guided. 3. Handrail according to claim 1 and 2, characterized in that the clampable segments made of plastic '' such as polyamide, acetal resin, polyethylene or the like) have a C-shaped cross-section and that their clamp holders (5) are pressed over the chain pins (3) and thus snap into place and hold in their correct position.