EP0491725B1 - Handlauf für rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung - Google Patents

Handlauf für rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung Download PDF

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Publication number
EP0491725B1
EP0491725B1 EP90912644A EP90912644A EP0491725B1 EP 0491725 B1 EP0491725 B1 EP 0491725B1 EP 90912644 A EP90912644 A EP 90912644A EP 90912644 A EP90912644 A EP 90912644A EP 0491725 B1 EP0491725 B1 EP 0491725B1
Authority
EP
European Patent Office
Prior art keywords
handrail
segments
segment
mold
tensile support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90912644A
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German (de)
English (en)
French (fr)
Other versions
EP0491725A1 (de
Inventor
Miklos Dobo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOBO, MIKLOS, DR.
Original Assignee
Dobo Miklos Dr
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Filing date
Publication date
Application filed by Dobo Miklos Dr filed Critical Dobo Miklos Dr
Publication of EP0491725A1 publication Critical patent/EP0491725A1/de
Application granted granted Critical
Publication of EP0491725B1 publication Critical patent/EP0491725B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/22—Balustrades
    • B66B23/24—Handrails

Definitions

  • the invention relates to a handrail for escalators, moving walks and the like, consisting of an endless, flexible bar with a grip area and guide areas that slide in operation on a stationary track, and one or more tension members embedded in the bar made of high-strength, low-stretch materials and a Process for its manufacture.
  • Known handrails of the type mentioned consist of continuous endless strips made of natural or synthetic rubber with incorporated reinforcement layers. These known handrails have proven their worth in operation, but their manufacture is extremely complex. The known handrails are produced in their entire length or in long sections and then have to be vulcanized in sections, for which they each have to be treated in a vulcanization press. After vulcanization, a relatively complex and not always satisfactory endless closure takes place.
  • link handrail strips are also known, which are composed of individual links of the same cross-section.
  • the links are either directly connected to each other (DE-PS 18 11 982) or mounted on a common continuous drag chain (US-PS 2,766,886).
  • the disadvantage of the known link handrail strips is that they have too much elongation in the direction of travel, since the play and assembly-related play between each pair of links add up to an impermissibly large play over the entire length. This applies particularly to wear after a long run and is noticeable through a sharp increase in running noise.
  • Another disadvantage is the wear caused by the friction between the individual links and guide rails.
  • a handrail is known from US Pat. No. 2,778,882, which consists of basic bodies and an endless coating of an elastic plastic material or rubber.
  • the basic bodies made of a hard plastic material are individually or in groups formed around the pulling ropes.
  • the mutually facing sides of the base body are provided with projecting lugs arranged on a gap.
  • the invention has for its object to provide a handrail of the type mentioned, which can be manufactured more easily and with less effort while maintaining its previous good properties.
  • this object is achieved in that the bar is divided in its longitudinal direction into individual, closely spaced, one-piece segments formed around the continuous tension member, which encompass the stationary path and are provided with a grip area and a sliding area.
  • the handrail according to the invention has the advantage that the segments can be produced individually or in groups independently of one another in close succession, whereby they are shaped around the continuous tension member.
  • the tension member can thus be molded into the individual segments during the manufacturing process in the same operation.
  • the segments forming the strip can be formed from a thermoplastic elastomer. These Segments can be injection molded or blown around the tension member. Alternatively, the segments can also be made from foamable polyurethane using the RIM process.
  • the successive segments which expediently have an approximately rectangular shape in plan view, can overlap one another in the grip area. This ensures that the handrail is closed to the outside, so that there is no risk of injury to the user.
  • the overlap regions can be formed by flat tongues projecting in the axial direction, which engage in a corresponding recess in the following segment.
  • the tongues either extend only in the area of the upper side of the handrail strips or around their entire cross section.
  • Each segment expediently has at its one end a flat projecting tongue which extends at least over the entire width of the grip region and at its other end a recess which is adapted to this. This ensures that all segments consist of identical molded parts that can be manufactured in the same shape or in the same group of shapes.
  • the upper sides of the tongues are preferably in the plane of the upper sides of the segments, so that a continuously smooth surface is produced when the handrail strip is in operation.
  • the undersides of the tongues are expediently above the tension member in the area of the tension member, so that the good flexibility of the bar is retained.
  • the mutually facing sides of the segments in the grip area may each be provided with a projecting, deformable flat lip, the lips lying close together and thereby forming a continuously closed handrail.
  • the lips When the tension member is stretched, the lips preferably lie against one another under prestress, so that a reliably tight connection of the grip part is created.
  • the tension member is expediently formed by a plurality of steel cables running parallel to one another. These can be arranged at a distance from one another in one plane. At least during the connection to the individual segments, the steel cables should be under tension so that it is ensured that all steel cables are supported.
  • the steel cable ends preferably overlap one another during the endless closing in their connecting region, the ends pointing in opposite directions, and are jointly surrounded by at least one segment. This creates a connection area which is not visible from the outside and which can be produced without additional effort.
  • the segment or segments in the transition area are produced in the same shapes as the other segments. Such a connection is much easier and better to produce than a vulcanized connection according to the prior art.
  • the steel cable ends are expediently arranged in an alternating sequence in the same plane in their connection area, so that no harmful moments can arise when a tensile force is applied.
  • the segments are made of a thermoplastic elastomer, they can be provided in the area of their sliding surfaces with molded, protruding knobs, for example in the form of spherical caps, whereby the Frictional force compared to the stationary path on which the handrail slides can be reduced.
  • the segments in the area of their sliding or drive surfaces can also be provided with molded sliding or adhesive layers, for example with textile layers, which are inserted into the mold or supplied in some other way before the injection molding or blowing process is initiated.
  • the successive segments can be provided with a continuous covering that overlaps them.
  • the method according to the invention for producing a handrail is characterized in that a section of the tension member is inserted into a mold, the regions of the tension member adjoining this section being passed through openings lying in a dividing line of the mold, that in the mold with a grip area and a segment provided with a sliding area around the tension member and after completion is removed together with the tension member from the open mold and that a section of the tension member adjacent to the segment is then inserted into the mold and surrounded with another segment and so on.
  • the injection mold or blow mold can completely surround the respective segment.
  • the injection mold or blow mold can be designed to be open on the side which faces the adjacent, already completed segment, the outer contour of the finished segment being used to close the mold on this side and as Part of the shape works.
  • a particularly simple way to generate a bias between the segments is that the Tension members are bent during the manufacture of the segments.
  • the tension member located in the closed mold can be deformed by the melt of the thermoplastic elastomer.
  • the tension member consists of parallel steel cables
  • the bar can be closed endlessly after reaching the prescribed length by simultaneously inserting both ends of the steel cables into the mold or in a plurality of adjacent molds and embedding them in one or more segments.
  • a continuous covering can be applied to it, which overlaps the individual segments.
  • the coating can be applied by producing it by continuous extrusion.
  • a short section of an endless, flexible handrail bar 1 is shown, which is provided for escalators, moving walks or the like.
  • the handrail strip 1 has a grip area 2 and sliding areas 4 which, in the assembled state of the handrail strip 1, encompass a stationary guide track (not shown in the drawing) on which the driven handrail strip 1 can slide.
  • Ten steel cables 3 serving as tension members are embedded in the upper area of the handrail strip 1.
  • the handrail strip 1 is divided in its longitudinal direction into individual closely consecutive segments 5, 6, 7, which have an approximately rectangular shape in plan view.
  • each segment 5, 6, 7 has a projecting tongue 8 at one end and a recess 9 adapted to this at its other end.
  • All segments 5, 6, 7 are of identical design.
  • the tongue 8 of the segment 6 engages in the recess 9 of the segment 5, while the tongue 8 of the segment 7 engages in the recess 9 of the segment 6.
  • the upper sides of the tongues 8 lie in the same plane as the upper sides 10 of the segments 5, 6, 7, i.e. the tongues 8 practically form an extension of the surface 10 on one side of the segments 5, 6, 7.
  • the undersides of the tongues 8 lie above the steel cables 3.
  • the recesses 9 of the segments 5, 6, 7 are step-shaped, the height of each step approximately corresponding to the thickness of a tongue 8.
  • the undersides of the tongues 8 each lie on the upper sides of the steps of the recess 9, so that the gaps between the individual segments 5, 6, 7 are thereby bridged.
  • the tongues 8 extend at least over the entire width of the handle part 2, so that the top of the Handrail bar 1 is almost smooth. However, it is also possible for the tongues 8 to extend over the entire outward region of the segments 5, 6, 7, so that each gap 11 between the individual segments is covered all around. Accordingly, the recesses 9 then extend over the entire outer region of the respective segments.
  • the segments 5, 6 and 7 of the embodiment of the handrail strip 1 shown in FIGS. 1 and 2 are made of a thermoplastic elastomer.
  • the individual segments 5, 6, 7 can accordingly be produced by injection molding.
  • the steel cables 3 are guided through openings in a corresponding shape under the same pretension and then encapsulated with the melt of a thermoplastic elastomer when the mold is closed.
  • the mold is opened and the finished segment is removed from the mold axially to the pretensioned wire ropes, the wire ropes for the next segment being introduced into the mold.
  • the process is then repeated as often as required.
  • the shape is designed so that the distance between the segments is extremely small, so that each gap 11 between the individual segments remains less than 2 mm.
  • the number of segment nests in the mold can vary depending on the size of the injection molding machine. In a very small injection molding machine, for example, each segment is manufactured individually, while in a larger injection molding machine, for example, ten segments can be manufactured simultaneously.
  • the handrail strip 1 is closed endlessly by simultaneously inserting the two ends of the steel cables 3 into the corresponding shape or into several shapes and embedding them in the segments by injecting the thermoplastic elastomeric material. After the segments have cooled, the ends of the steel cables are firmly connected. In order to In the respective overlap area of the steel cables when a tensile force cannot be applied to them, both ends of the steel cables lie in one plane. If, for example, the steel cables 3 are considered as ends in FIG. 1, the other ends would be inserted exactly into the gaps 12 between the steel cables 3.
  • Thermoplastic elastomers are available today in high hardness, so that the usual textile reinforcements can be dispensed with in a handrail bar made from them. This considerably simplifies the construction of the handrail strip.
  • thermoplastic elastomers are printable so that they can also be used as advertising media.
  • thermoplastic elastomers such as polyurethanes, elastomer alloys, copolyesters and the like, are suitable as the production material.
  • the steel cables 3 embedded in the segments 5, 6, 7 are preferably made of stainless steel or subjected to a surface treatment so that they do not rust.
  • the steel cables can be overmoulded with a thermoplastic elastomer.
  • Handrail strips made from thermoplastic elastomers are also very environmentally friendly when it comes to disposal, because the thermoplastic material can be reused in the recycling process.
  • the handrail strip 13 is composed of segments 14, 15, 16 which, in the same way as in the exemplary embodiment shown in FIGS. 1 and 2, consist of a thermoplastic elastomer.
  • the segments 14, 15, 16 are injection molded in close succession around steel cables 3, which serve as tension members in the handrail strip 13.
  • the segments 14, 15, 16 each have a projecting lip 17 and 18, respectively, the lips 17 and 18 of two adjacent segments lying closely against one another.
  • the lip 17 of the segment 15 bears against the lip 18 of the segment 14, while the lip 18 of the segment 15 bears against the lip 17 of the segment 16.
  • the lips bear against one another under prestress, so that the gaps 19 between the individual segments are tightly bridged.
  • the manufacturing process is carried out in the same way as in the exemplary embodiment according to FIGS. 1 and 2.
  • the steel cables 3 are bent, for example, during the injection molding of the segments.
  • the lips 17 and 18 of the successive segments then automatically abut one another under pretension.
  • the lip 18 of the already completed segment 15 can also be pressed onto the segment 15, while the segment 16 with its opposite lip 17 is produced by the injection molding process. After the completion of the segment 16, the lip 18 of the segment 15 is released again, so that the two adjacent lips 17 and 18 then inevitably bear against one another under prestress.
  • the tension members or steel cables 3 should be under prestress, so that the segments lie close together and, at the same time, it is ensured that all cables 3 carry along.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
EP90912644A 1989-09-12 1990-08-27 Handlauf für rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung Expired - Lifetime EP0491725B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3930351A DE3930351A1 (de) 1989-09-12 1989-09-12 Handlauf fuer rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung
DE3930351 1989-09-12
PCT/DE1990/000656 WO1991004219A1 (de) 1989-09-12 1990-08-27 Handlauf für rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung

Publications (2)

Publication Number Publication Date
EP0491725A1 EP0491725A1 (de) 1992-07-01
EP0491725B1 true EP0491725B1 (de) 1994-05-18

Family

ID=6389204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90912644A Expired - Lifetime EP0491725B1 (de) 1989-09-12 1990-08-27 Handlauf für rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung

Country Status (7)

Country Link
US (1) US5275270A (enrdf_load_stackoverflow)
EP (1) EP0491725B1 (enrdf_load_stackoverflow)
AT (1) ATE105829T1 (enrdf_load_stackoverflow)
CA (1) CA2067350A1 (enrdf_load_stackoverflow)
DE (2) DE3930351A1 (enrdf_load_stackoverflow)
ES (1) ES2056477T3 (enrdf_load_stackoverflow)
WO (1) WO1991004219A1 (enrdf_load_stackoverflow)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255772A (en) * 1992-12-22 1993-10-26 Escalator Handrail Company Handrail for escalators and moving walkways with improved dimensional stability
US6086806A (en) 1996-04-05 2000-07-11 Ronald H. Ball Method of splicing thermoplastic articles
DE19832158A1 (de) * 1997-07-18 1999-02-18 Silvertown Uk Ltd Handlauf aus einem thermoplastischen Material
EP0960847A1 (de) * 1998-05-27 1999-12-01 Inventio Ag Fahrtreppe oder Fahrsteig mit einer Handlaufüberwachungseinrichtung
US6237740B1 (en) 1998-06-30 2001-05-29 Ronald H. Ball Composite handrail construction
US7278528B2 (en) * 1999-02-19 2007-10-09 Ronald H. Ball Method of and apparatus for applying a film optionally including advertising or other visible material, to the surface of a handrail for an escalator or moving walkway
US20040247843A1 (en) * 1999-02-19 2004-12-09 Mcleod John Method of applying a protective film, optionally including advertising or other visible material, to the surface of a handrail for an escalator or moving walkway
US6533881B1 (en) * 1999-06-18 2003-03-18 John Ronan Wall Composite metal and plastic fencing and method therefor
ES2223206B1 (es) * 2001-10-05 2005-12-16 Thyssen Norte, S.A. Pasamanos para pasillo movil de velocidad variable.
US6564921B1 (en) 2001-12-11 2003-05-20 Chad Gorczyca Direction of travel indicator for escalators and moving walkways
JP2004224504A (ja) * 2003-01-22 2004-08-12 Mitsubishi Electric Corp 乗客用コンベアーの移動手摺
DE10344468A1 (de) * 2003-09-25 2005-04-14 New-York Hamburger Gummi-Waaren Compagnie Ag Verfahren und Vorrichtung zur Endlosverbindung von Handläufen für Fahrtreppen und Fahrsteige
JP4463052B2 (ja) * 2004-09-08 2010-05-12 株式会社トーカン 移動手摺の製造方法
CN101687615B (zh) * 2007-06-28 2011-08-24 三菱电机株式会社 乘客输送机用移动扶手
US9981415B2 (en) 2007-09-10 2018-05-29 Ehc Canada, Inc. Method and apparatus for extrusion of thermoplastic handrail
EP2200803B1 (en) 2007-09-10 2018-10-24 EHC Canada, Inc. Method and apparatus for pretreatment of a slider layer for extruded composite handrails
JP5770473B2 (ja) 2007-09-10 2015-08-26 イー エイチ シー カナダ インコーポレーテッドＥＨＣ Ｃａｎａｄａ，Ｉｎｃ． 物品押出加工方法、ハンドレール形成方法、物品押出装置及びダイ組立体
BRPI0816334B1 (pt) 2007-09-10 2019-11-05 Ehc Canada Inc corrimão que tem uma seção transversal geralmente em forma de c e que define uma fenda interna geralmente em forma de t"
CA2704364A1 (en) * 2007-11-09 2009-05-14 Ehc Canada, Inc. Elastic and resilient film having a barrier layer
EP2288565A1 (de) 2008-05-21 2011-03-02 Inventio AG Handlauf für eine fahrtreppe oder einen fahrsteig
ES2427394T3 (es) * 2008-05-21 2013-10-30 Inventio Ag Barandilla para una escalera mecánica o un andén móvil
MX2010012465A (es) * 2008-05-21 2010-12-07 Inventio Ag Dispositivo para el transporte de personas, en particular escalera mecanica o anden rodante comprendiendo pasamanos, y pasamanos para escalera mecanica o anden rodante.
NZ589260A (en) * 2008-05-21 2012-07-27 Inventio Ag Handrail with light window and handgrips for an escalator or a moving walkway
JP6730318B2 (ja) 2015-05-07 2020-07-29 イー エイチ シー カナダ インコーポレーテッドＥＨＣ Ｃａｎａｄａ，Ｉｎｃ． 機械特性が向上した小型の複合ハンドレール
BR112017025648B1 (pt) 2015-06-19 2022-05-17 Ehc Canada, Inc Método e aparelho de extrudar um artigo de seção transversal uniforme

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Publication number Priority date Publication date Assignee Title
US2766868A (en) * 1953-01-16 1956-10-16 Multiscope Inc Moving stairway hand rails
FR95475E (fr) * 1967-04-17 1971-01-15 Inst Francais Du Petrole Méthode de mesure de la vitesse ou du débit d'un écoulement fluide et dispositif pour sa mise en oeuvre.
AT278648B (de) * 1967-12-27 1970-02-10 Koch Ernst Transportvorrichtung
GB1260299A (en) * 1968-04-22 1972-01-12 Btr Industries Ltd Improvements in and relating to handrails for escalators or travolators
DE2032667A1 (de) * 1970-07-01 1972-01-05 Koch E Handlauf
GB1345321A (en) * 1970-06-12 1974-01-30 Btr Industries Ltd Haindrails
US3688889A (en) * 1970-08-14 1972-09-05 Ernst Koch Driven handrail system
DE2060356A1 (de) * 1970-12-08 1972-06-22 Rheinstahl Eggers Kehrhahn Handlauf fuer ein Fahrfoerdermittel,wie eine Fahrtreppe
BE794338A (fr) * 1972-01-24 1973-05-16 Pahl Gummi Asbest Main courante pour escalier roulant
DE2302602C3 (de) * 1973-01-19 1982-01-07 Pahl'sche Gummi- und Asbest-Gesellschaft "Paguag" GmbH & Co, 4000 Düsseldorf Handlauf für Rolltreppen
IT987303B (it) * 1973-05-04 1975-02-20 Pirelli Corrimano
CH557295A (de) * 1973-12-21 1974-12-31 Inventio Ag Gliederhandlauf fuer fahrtreppen oder personenfoerderbaender.
DE3715679A1 (de) * 1987-05-15 1988-12-01 Taurus Gumiipari Vallalat Aus elastischem material gefertigtes laufendes band, insbesondere fuer gelaender von fahrtreppen bzw. fahrsteigen

Also Published As

Publication number Publication date
WO1991004219A1 (de) 1991-04-04
DE3930351C2 (enrdf_load_stackoverflow) 1992-04-30
CA2067350A1 (en) 1991-03-13
ATE105829T1 (de) 1994-06-15
DE3930351A1 (de) 1991-03-21
US5275270A (en) 1994-01-04
DE59005770D1 (de) 1994-06-23
ES2056477T3 (es) 1994-10-01
EP0491725A1 (de) 1992-07-01

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