EP1088783A2 - Hand rail for escalator or moving walkway - Google Patents

Abstract

The escalator or moving walkway has a hand rail in an E-shape, with a wedge-shaped guide (12) stretching from the hand rail (10) to the balustrade. The guide runs over support rollers (38) in the balustrade head (60), and is also has a support surface (26). A guide plate (44) is also situated in the balustrade head.

Description

The invention relates to an escalator or moving walk with a handrail, according to the preamble of claim 1, and a handrail, according to the preamble of claim 13.

Escalators and moving walks with handrails are known at which the handrail, which is essentially the shape of a lying C has a guide body in the middle mostly with bevelled flanks. This guide body is referred to as a wedge, although it is usually not pointed tends to, and is used in particular to improve portability a deflection wheel for the handrail. The handrails are supposed to a good and especially slip-free can, on the other hand, slide well on guide elements.

To keep these conflicting goals in line with each other it has been proposed to bring different Coatings in different places on the handrail to attach. However, this requires special measures that make production more expensive. In particular, there is also There is a risk that layers will partially detach, causing malfunctions can arise.

Escalators and moving walks with handrails have also become known, that do without a guide body. Such handrails are often used for transparent balustrades, around the passenger's view of a rotating Spare deflection wheel. Such solutions have been around since long known, for example to DE-AS 15 56 311 is referencing. Have handrails equipped with a wedge on the other hand basically the advantage that the drive over a V-belt pulley with a correspondingly low slip can be done. The V-belt pulley can either be used as a deflection wheel be realized in the balustrade head, or it can not visible via an additional built-in semicircular Drive the handrail around such a wheel. This drive is much better than the drive with friction rollers that promote wear on the handrail, so that he regularly after the relevant maintenance interval needs to be replaced.

In addition, apparently comes the central guide body, the is equipped with wedge flanks, a stiffening and Stabilizing function too. Wear of the holding ends of the Handrail is significantly reduced, especially if the Handrail over support rollers on both sides of the guide body is led. With such a solution it is also possible completely without sliding friction between the balustrade and handrail get along, the guide plate then only as Lift-off protection and the lateral guidance of two Guide body adjacent bearings can be taken.

Despite these enormous advantages, the disadvantage became one Keilless handrail for handrails guided with deflection wheels accepted, in particular for escalators and Moving walks where the balustrade is made of glass. The proportion of such escalators and moving walks has since 1970s increased significantly, and it was widely called felt unsatisfactory that with a pure friction roller drive for the handrail it slips so that none synchronous movement between step or pallet belt and There is more handrail, which gives the passenger a feeling of insecurity mediated.

To compensate for this, it has also been suggested the speed of the Handrail to record and a corresponding regulation synchronize the step or pallet belt speed. However, this solution is particularly complex and fails even if the handrail is worn too much.

Therefore, the invention has for its object a Escalator or moving walk according to the preamble of Claim 1 and a handrail according to the preamble of Claim 13 to create the or the escalators or moving walks without deflection wheels in the balustrade heads, especially with escalators or moving walks see-through balustrades, which offers the possibility of a improved drive safety of the handrail and at the same time an improved synchronization over the step or Ensure pallet belt.

This object is achieved by claims 1 and 13, respectively solved. Advantageous further developments result from the Dependent claims.

According to the invention it is provided that a handrail Guide body, the preferably suitably designed drive flanks has, is used, which still has support rollers is guided in the deflection area of the handrail. Hereby an improved handrail can also be used with glass balustrade escalators and moving walkways. The drive can be in proven way concealed by a semicircle loop a drive wheel with a V-belt pulley, where at this point the length compensation required anyway can be done.

Surprisingly, the measures according to the invention enable that the handrail according to the invention in the deflection area, that is The area of the support rollers for the balustrade head does not tilt. For this purpose, on the one hand, known horizontal end legs of the guide plate provided, which is also in the deflection area in the inner ends of the substantially C-shaped profile stretch in. On the other hand, it is particularly favorable if the Contact surface of the guide body is quite wide and the guide body is rather compact overall. Hereby such improved lateral support takes place Tipping moments that without the end leg of the guide plate Do not leave the handrail without external influence would.

The handrail is preferably quite narrow and overall flat. This saves material, on the one hand, and indeed more material than it is for the additional provision of the Guide body is required, the other are the side Tipping moments less. Finally, the third one better handrail by the passengers on a regular basis than felt pleasant; children in particular often have difficulties the usual and for reasons of stability rather wide handrails to hold on to.

Even if the profile of the handrail here as in the form of a lying C is described, it is understood that basically in fact the shape of a lying ist is true. In this context, it is particularly favorable that the guide body has a stabilizing effect. Apparently, the inclination of the Handrail to deform transversely at the bend when a pure C shape is strongly pronounced with a wedge shape, basically a ∈-shape, much smaller. In addition is the degree of compression and thus the material stress Because of the reduction in dimensions, particularly in the vertical direction less so that the handrail according to the invention also less to cracking on the heavily used top tends. The handrail according to the invention is therefore also special Suitable for escalators and moving walks that are at least partially run outdoors, such as escalators for Subway entrances or the like.

According to the invention, it is particularly favorable if the guide body down to about the area of the stop ends of the profile. This allows one for the Provide the drive with a suitable, comparatively large inclined surface, which are driven on a corresponding deflection roller is. Nevertheless, there remains a large contact area for the tip-proof Detour on support rollers in the deflection area of the balustrade.

According to an alternative embodiment, it is possible instead a support roller two support rollers spaced apart insert, which is just to the side of the guide body fit inside the handrail and such a width have that they just barely pass through the guide plate allow to the side of the holding ends. It is preferred to use a guide plate with horizontal end legs, which engage in the inner ends of the profile to a To ensure lift-off protection also in the deflection area, if these are also less critical than in the straight area of the handrail is.

This solution enables a particularly compact and flat Construction of the handrail, which is also shortened in height, and is therefore particularly suitable for escalators and moving walks Glass balustrades suitable. It is understood that the free space between the holding ends and the guide body and its Trapezoidal flanks meet the requirements in wide areas can be adjusted. For example, the height of the handrail can be reduced to only 20 mm for this configuration. By using support rollers of 20 mm Diameter is the height required for the function then only 30 mm, with the space between the two Support rollers below the axis for the passage of cables or a light well can be used. This The solution is characterized by an extremely compact design from, but still good long-term stability of the handrail can be expected, especially since the total width of the total of the handrail on the support rollers is quite 1 cm or can be more.

According to another, particularly favorable point of view, it is possible, now also for the more permanent handrails with wedge with one and the same guide plate for the entire length of the Get along handrail. The own construction of the depending on the diameter Deflection wheels can thus be completely eliminated, and if necessary, it can be provided for the axle mounts Pre-punch support rollers in the deflection area at shorter intervals than in the straight range, whereby here without further ado and Adaption to the spatial without additional costs Conditions, but also the resilience for which the Escalator or moving walk must be laid out can be.

Further advantages, details and features result from the following description of two exemplary embodiments based on the drawing.

Fig. 1

einen Querschnitt durch eine Ausführungsform eines erfindungsgemäßen Handlaufs;

Fig. 2

eine Ansicht eines Details einer erfindungsgemäßen Fahrtreppe oder eines erfindungsgemäßen Fahrsteigs in der Ausführungsform gemäß Fig. 1, wobei der Handlauf und seine Führung auf der Balustrade dargestellt ist;

Fig. 3

den Umlenkbereich einer Fahrtreppe gemäß Fig. 1 und 2; und

Fig. 4

einen Schnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Fahrtreppe, in einer Detaildarstellung zur Wiedergabe des Handlaufs und seiner Führung.

Show it:

Fig. 1

a cross section through an embodiment of a handrail according to the invention;

Fig. 2

a view of a detail of an escalator according to the invention or a moving walk according to the invention in the embodiment according to FIG. 1, the handrail and its guidance being shown on the balustrade;

Fig. 3

the deflection area of an escalator according to FIGS. 1 and 2; and

Fig. 4

a section through a further embodiment of an escalator according to the invention, in a detailed representation for reproducing the handrail and its guidance.

The embodiment of an escalator shown in Fig. 1 has a handrail 10, which is essentially in the form of a lying ∈ is formed. The handrail has a guide body 12, which - in the representation in Fig. 1 - extends downwards in the middle. The ends of the handrail 10 are bent in a conventional manner by 180 ° and run in Holding ends 14, 16, which are intended for this purpose from FIG. 2 apparent horizontal end leg of a guide plate for reach behind the handrail guide. The horizontal end legs enter inside ends 18, 20 of the handrail.

The guide body 12 then points to the main part of the Handrail on a rectangular area 22 that few Extends millimeters down. Then converge on it two trapezoidal edges 24 of the guide body 12, wherein the trapezoidal flanks are preferably at an angle of 20 ° to 50 ° to one another about 35 °.

The guide body 12 runs out in a support surface 26, the an increased width compared to the overall cross section of the Handrail 10 has. Between the holding ends 14, 16 and Trapezoidal edges 24, the handrail has a free space 28 that is also relatively large.

In the illustrated embodiment, the following dimensions are predefined: Overall width of the handrail 75 mm Strength 32 10 mm Clear width 30 9 mm Strength in the area of the holding ends 14, 16 8 mm Free space 28 23 mm Width of the support surface 26 10 mm Width of the guide body at its base 15 mm Handrail height 26.5 mm

Accordingly, the handrail 10 is comparatively compact formed and has a cross-sectional area with relative large material thicknesses, but small overall dimensions.

As a result, but in particular also due to the low height of the Handrail is the inclination of the handrail when turning in the Guide area to wave, relatively small, so the handrail Also particularly suitable for escalators and moving walks which have a lower balustrade height, as in different countries is desired. Alternatively, one particularly abrasion-resistant and somewhat less elastic rubber compound be used, which is also the durability of the Handrail benefits.

From Fig. 2 it can be seen in what way the inventive Handrail on an escalator in the deflection area of the Balustrade can be used. In the example, there is one Escalator depicted with massive balustrade, being it understands that if desired, an escalator with Glass balustrade can be realized accordingly.

The diversion takes place via support rollers 38, which have a race 40 and a double ball bearing 42 are provided. On the quite wide race 40, the guide body 12 rolls with his Contact surface 26 from. The detour is completely over Rolling friction realized so that the guide plate 44 with his horizontal end legs 46, 48 only serve as a safety catch. The horizontal end legs 46, 48 are known per se Way provided with an end fold 50 and protrude into the inner ends 18, 20 in.

The guide plate 44 is essentially in a manner known per se U-shaped and takes the support rollers on their axes 54. Via an extruded profile 56 the guide plate 44 is additionally supported and secured, the remaining space between the extruded profile 56 and the final fold 50 on the one hand and the Handrail, i.e. the inner ends 18, 20 and the holding ends 14, 16, on the other hand, in a wide range of requirements is customizable. For example, indoors mounted escalators and moving walks where regular there are less temperature fluctuations, the free space be interpreted accordingly lower.

From Fig. 3 it can be seen that numerous, in the example 25, support rollers 38 distributed over a balustrade head 60 may be appropriate. The distance between the support rollers 38 is therefore too low due to the inherent rigidity of the handrail 10 chosen as that for the passenger - if he has his Hand in the area of the balustrade head - one Out of roundness would be noticeable. In addition, a variety of reduced Support roles also the accruing flexing work; over the whole The handrail remains with the semicircular balustrade head minimal deviations curved around.

4 is a modified embodiment of the handrail and his guidance on an escalator can be seen that particularly builds flat. With this solution, the Handrail 10 via a double arrangement 62 of support rollers 38 directly adjacent to the guide body 12. The outer The race of each ball bearing 64, 66 serves as a support element for an area of the handrail that is directly adjacent to the guide body 12 is adjacent. The fact that the trapezoidal edges 24th of the guide body 12 begin before the inner race of the respective ball bearings 64, 66 is reached, sliding friction between the guide plate 44 with the associated fixed elements and the handrail 10 completely prevented.

It is understood that for the storage of each ball bearing 64, 66 the use of flat fasteners on the guide plate how riveting is preferred. In addition, in each holding end 14, 16 slightly bevelled on the inside, so that here too the necessary Game is given.

The guide plate 44 is preferably essentially W-shaped formed so that its symmetrical interior 70 at bearing surface 26 not used in this embodiment is approximated, and either immediately in a manner known per se be clamped onto a balustrade glass pane can, or if necessary as an additional recording channel used for control lines, light elements or the like can be. It is understood that an inventive Handrail especially for extremely long moving walks suitable is. Because of the low elasticity required the longitudinal elongation is also lower, depending on the material, and also the inclination of the rubber or plastic mixture when Dodging the drive is less.

Even if this is not shown here, it goes without saying that drive the handrail in any suitable way can be done. A V-belt pulley is preferably sunk arranged in the base of the escalator or moving walk, which is wrapped around the semicircle by the guide body being, the constant tension of the handrail over a spring-loaded pinch roller in the immediate vicinity the drive pulley can be ensured. This can the drive of the handrail, without slipping inclined drive wheels in the manner of a V-belt and take place with appropriate security.

Claims (16)

Escalator or moving walk with handrail on a balustrade is guided and supported, the handrail in essentially has the shape of a lying ∈ and a particular wedge-shaped guide body (12) from the handrail extends to the balustrade and ends in a support surface, characterized in that the guide body (12) in the balustrade head (60) runs over support rollers (38) and in particular supported only with its support surface (26) is. Escalator or moving walk according to one of the previous ones Claims, characterized in that the handrail (10) too in the balustrade head (60) additionally via a guide profile, in particular a guide plate (44), which is in the inner ends (18, 20) of the ∈-profile. Escalator or moving walk according to one of the previous ones Claims, characterized in that the guide body (12) from the inside of the ∈ profile to the balustrade extends and in the area of the holding ends (14, 16) of the ∈ profile ends. Escalator or moving walk according to one of the previous ones Claims, characterized in that the clear height (36) the inner ends (18, 20) of the ∈ profile approximately the material thickness corresponds to the handrail (10) and in particular significantly smaller than one and a half times the material thickness (32) and is preferably smaller than the material thickness (32). Escalator according to one of the preceding claims, characterized characterized in that the width of the handrail (10) is less than 80 mm, preferably about 75 mm, is reduced. Escalator or moving walk according to one of the previous ones Claims, characterized in that the height of the handrail (10) is reduced and in particular about a third of it Width is. Escalator or moving walk according to one of the previous ones Claims, characterized in that the bearing surface (26) has a width substantially equal to the thickness (32) of the Handrail (10) corresponds. Escalator or moving walk according to one of the previous ones Claims, characterized in that the guide body (12) is essentially trapezoidal in cross section and in particular a rectangular one adjacent to the ∈ profile Has area (22). Escalator or moving walk according to claim 8, characterized in that that the opening angle of the trapezoidal flanks (24) 10 ° - 60 °, is in particular 30 ° -40 ° and preferably about 35 °. Escalator or moving walk according to one of the previous ones Claims, characterized in that a free space (28) between the holding ends (14, 16) of the ∈ profile and the guide body (12) approximately the width of the guide body (12) corresponds and the guide plate (44) approximately in the middle through the Free space (28) is passed through. Escalator or moving walk according to one of the previous ones Claims, characterized in that the guide plate (44) horizontal end leg (48) and in particular a final fold (50). Escalator or moving walk according to one of the previous ones Claims, characterized in that the support rollers (38) are designed as a race of a ball bearing (42) especially about twice the width of the contact surface (26) extends. Handrail for an escalator or moving walk, thereby characterized in that the guide body (12) inside the Handrail a support surface facing away from the handrail (26) has and in particular for the support on support rollers (38) is determined via this contact surface. Handrail according to claim 13, characterized in that the Guide body (12) inside the handrail in particular is wedge-shaped. Handrail according to claim 13 or 14, characterized in that the handrail (10) made of plastic, in particular of elastomer plastic consists. Handrail according to one of claims 13 or 14, characterized in that the handrail is made of hard plastic and structured.

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