EP1112219A1 - Main courante - Google Patents

Main courante

Info

Publication number
EP1112219A1
EP1112219A1 EP99944536A EP99944536A EP1112219A1 EP 1112219 A1 EP1112219 A1 EP 1112219A1 EP 99944536 A EP99944536 A EP 99944536A EP 99944536 A EP99944536 A EP 99944536A EP 1112219 A1 EP1112219 A1 EP 1112219A1
Authority
EP
European Patent Office
Prior art keywords
handrail
layer
short fibers
rubber
layers
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.)
Granted
Application number
EP99944536A
Other languages
German (de)
English (en)
Other versions
EP1112219B1 (fr
Inventor
Janusz Ledzinski
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.)
Semperit AG Holding
Original Assignee
Semperit AG Holding
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Semperit AG Holding filed Critical Semperit AG Holding
Priority to AT99944536T priority Critical patent/ATE239664T1/de
Publication of EP1112219A1 publication Critical patent/EP1112219A1/fr
Application granted granted Critical
Publication of EP1112219B1 publication Critical patent/EP1112219B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/249928—Fiber embedded in a ceramic, glass, or carbon matrix
    • Y10T428/249929—Fibers are aligned substantially parallel
    • Y10T428/24993—Fiber is precoated

Definitions

  • the present invention relates to a handrail for use in escalators, moving walks and the like, which has a C-shaped cross-section, a sliding layer and a rubber cover layer for the user as outer layers, and also a position having tension members, in particular with steel cords embedded in rubber and oriented in the longitudinal direction, and has at least one reinforcement layer on each side of the tension member
  • Handrails for escalators Moving walks for the transportation of passengers and the like have important functions to perform. They must provide a stable and secure grip for the people using the escalators and moving walks and be designed so flexibly that they can be bent and driven around the various drive rollers In addition, handrails must be able to withstand tens of thousands of Newtons
  • a handrail construction of the type mentioned at the outset is known, for example, from US Pat. No. 5,255,772.
  • the disclosed handrail type with a C-shaped cross section has a tension member which consists of steel cords running parallel to one another in the longitudinal direction of the handrail and embedded in a rubber matrix
  • the sliding layer is made of a tightly woven material, e.g. cotton, polyamide or polyester, and has to ensure good sliding of the handrail on the guide rail.
  • Reinforcement layers are arranged on both sides of the tension member, which consist of a woven material, the warp thread in the transverse direction of the handrail , that is, they are oriented at right angles to the tension member. The individual weft threads are only used to hold the warp threads together
  • the required stiffness is supported by the C-shaped cross section of the handrail.
  • the lip width is adjusted so that the handrail can slide without too much resistance, but the lip width tolerance has to be so small, that fingers or clothing cannot pinch.
  • handrails of known designs either tend to widen the lip spacing, which can lead to pinching of the fingers or clothing, or they tend to become narrower. In the latter case, this can lead to the handrail rubbing against the rail, to overheating and subsequently to the destruction of the handrail.
  • the object of the invention is therefore to develop a handrail for escalators and moving walks for people with improved dynamic properties and improved dimensional stability over a longer lifespan compared to the known constructions, which handrail does not have the problems mentioned.
  • At least one of the reinforcement layers is a rubber layer with homogeneously distributed short fibers, which have a preferred orientation and run at an angle deviating from 0 ° with respect to the longitudinal direction of the handrail.
  • the present invention provides a handrail with higher transverse stiffness, greater longitudinal flexibility, improved dimensional stability and stiffer lips compared to the known constructions. That for them
  • Reinforcement layers according to the invention used homogeneously provided with short fibers material prevents the occurrence of different tensions that arise in conventional handrails during stress in the area of the transition from textile to rubber.
  • the reinforcement layers in the handrail are positioned so that the short fibers run at an angle other than 0 ° to the extension of the tension member.
  • a reinforcement layer according to the invention also does not contain any warp threads that are contained in conventionally constructed handrails in the reinforcement layers made of woven material. The lack of warp threads gives a handrail constructed according to the invention excellent longitudinal elasticity with high transverse rigidity.
  • the lip width change is significantly less both with a positive bend and with a bend over the back of the handrail (negative bend) than with conventionally constructed handrails.
  • Handrails constructed in accordance with the invention are simple to manufacture and have one over the other known constructions significantly longer life and are overall safer to operate than the known constructions.
  • the short fibers in the reinforcement layers are oriented such that they are opposite to the longitudinal direction of the
  • Handrail run at an angle that deviates from the longitudinal direction of the handrail by at least 30 °, in particular by at least 45 °. Orientation of the short fibers in these areas is advantageous both for the elasticity in the longitudinal direction and for a high transverse rigidity.
  • a handrail according to the invention can be designed differently.
  • at least one, in particular two reinforcement layer (s) provided with short fibers can be arranged on one or on both sides of the tension member layer.
  • the rigidity of the handrail according to the invention is favorably influenced when the short fibers cross in adjacent reinforcement layers and preferably enclose angles of equal size with the longitudinal direction of the handrail.
  • an embodiment can also be made in which the short fibers run parallel to one another in adjacent reinforcement layers.
  • the proportion of short fibers is between 10 and 40 parts by weight, in particular between 15 and 30 parts by weight, based on 100 parts by weight of rubber in the mixture.
  • the material for the short fibers can consist of synthetic material such as nylon, polyester, polyvinyl alcohol, aromatic polyamide, carbon, of mineral material such as glass or of a natural material such as cotton.
  • the short fibers used can also be a fiber mix of fibers of different materials.
  • the rigidity of the reinforcement layers can thus be determined by the choice of the type of fiber and the mixing ratio of possible different fibers. The ratio of the length of the fibers to the diameter of the fibers also determines the rigidity of the layers. This ratio should be between 50 and 300 for the fibers used.
  • the reinforcement layers in the finished handrail finally have a thickness of 0.8 to 5 mm.
  • FIG. 1 shows an oblique view of an embodiment of a handrail according to the invention, in which the individual layers are gradually removed to clarify the structure of the handrail
  • FIG. 2 shows a cross section through the handrail according to FIG. 1.
  • the handrail 1 shown in the drawing figures has the usual C-shaped cross-section and therefore comprises a flat, transversely extending central part 1 a and on both sides of these lips 1 b then bent inwards.
  • a handrail 1 designed in this way is usually used for escalators or moving walks for people.
  • the lips 1 b encompass the guide rail, not shown here, of the escalator or moving walk.
  • the Handiauf 1 has a multilayer structure, which will now be discussed in more detail.
  • the handrail 1 On one outside the handrail 1 has the usual rubber cover layer 2 as a support for the hand of the user of the escalator or moving walk, on the other outside the handrail 1 is provided with a sliding layer 3 which comes into contact with the guide rail, not shown here .
  • the sliding layer 3 can have the usual structure and consist of a tightly woven cotton, polyamide or polyester fabric in order to ensure that the handrail 1 slides well on the guide rail.
  • the handrail 1 consists of further layers, by means of which it is given the required transverse rigidity and the required longitudinal flexibility.
  • the middle one is a rubber layer 4 which runs only in the middle part 1a and is embedded in the steel cords 4a which extend in the longitudinal direction of the handrail 1 run.
  • the layer 4 can extend into the lip areas, but is then carried out there without reinforcement.
  • the steel cords 4a form the tension member of the handrail 1. Normally and as shown in the drawing figures, a single layer of steel cords 4a is provided, which in the layer 4 run side by side.
  • a reinforcing layer 5 designed according to the invention is provided on both sides of the tension member layer 4 and in each case between the cover layer 2 and the sliding layer 3 and in the lip regions 1b.
  • the reinforcement layers 5 embed the tension member layer 4 between them, on both sides of the layer 4 or in the
  • Lip areas 1 b form a uniform position.
  • the layers 5 consist of a rubber mixture in which short fibers 6 are embedded.
  • the short fibers 6 have a preferred orientation, they are largely oriented in a single direction, the layers 5 being embedded in the handrail 1 in the illustrated embodiment such that the short fibers 6 run in the transverse direction of the handrail 1, accordingly at a right angle are arranged to the longitudinal direction and the alignment of the tension member.
  • a reinforcement layer 5 In the finished, vulcanized handrail, a reinforcement layer 5 usually has a thickness between 0.8 and 5 mm, in particular up to 3 mm.
  • the raw sheets from the fiber-reinforced mixture are produced by calendering in a thickness of 0.5 to 0.8 mm, which ensures good orientation of the fibers.
  • several, in particular up to four, thin calendered plates are either doubled after calendering or are placed one above the other when the handrail 1 is being built up.
  • the mixture according to Example 1 is based on polychloroprene rubber, the mixture according to Example 2 on styrene-butadiene rubber and natural rubber, these being only examples and therefore preferred types of rubber.
  • the proportion of SBR can be between 30 and 80 parts by weight and the proportion of natural rubber can accordingly be between 20 and 70 parts by weight.
  • Both mixtures also contain plasticizers, the proportion of which can be up to 20 parts by weight.
  • the rubber mixtures also contain the usual additives, such as anti-aging agents, magnesium oxide, stearic acid, zinc oxide, accelerators, sulfur and optionally crosslinking agents, these additives being added in the usual amounts.
  • the proportion of soot can be between 20 and 70 parts by weight.
  • the rubber mixture according to Mixing Example 1 contains short nylon fibers in a proportion of 5 parts by weight and short cotton fibers in a proportion of 15 parts by weight, based in each case on 100 parts by weight of rubber in the mixture.
  • the mixture according to mixture example 2 contains a mixture of short cotton fibers (10 parts by weight), short nylon fibers (5 parts by weight) and PVA short fibers (5 parts by weight).
  • fibers made of synthetic material such as carbon, nylon, polyester and aromatic polyamide (Kevlar)
  • fibers made of a mineral material such as glass and natural fibers such as cotton are also suitable.
  • the total proportion of fibers in the mixture is chosen between 10 and 40 parts by weight, in particular 15 to 30 parts by weight.
  • Fibers of different materials can be added in combination with each other, but only one type of fiber can be used.
  • the length of the fibers embedded in the reinforcement layers 5 is generally between 1 and 12 mm.
  • the ratio of the length of the fibers to the diameter of the fibers also determines the rigidity of the layers 5. This ratio should be between 50 and 300 for the fibers used.
  • the rigidity of the fiber-reinforced layers 5 can thus be determined or set by the choice of the type of fiber, the mixing ratio of possible different fibers, the proportion of fibers, the length of the fibers and the ratio of length to diameter. That after vulcanization from such rubber compounds
  • the resulting reinforcement layer 5 has a hardness of at least 75 Shore A, in particular of at least 80 Shore A.
  • the fibers can be uncoated or coated in a rubber-friendly manner, for example RFL (resorcinol-formaldehyde latex) -coated.
  • the purpose of the coating is to improve the adhesion between the fiber material and the rubber matrix.
  • the short fibers 6 added to the raw rubber mixture are oriented in a certain direction, for example, by the calendering process.
  • a good orientation of the fibers in the rubber mixture is generally achieved by calendering the mixture in a thickness of 0.5 to 0.8 mm.
  • the calendered layer is used in several layers. Extrusion through a slot die is also suitable for achieving fiber orientation.
  • a reinforcing layer 5 with short fibers 6 according to the invention is provided above and below the layer 4 containing the tension member.
  • the number or the total thickness of the reinforcement layers 5 are determined on the one hand by the rigidity of an individual layer 5 and on the other hand by the transverse rigidity to be achieved.
  • the arrangement thereof is preferably such that the short fibers 6 run at a right angle to the longitudinal direction of the handrail 1 or the tension member.
  • the orientation of the short fibers 6 is chosen such that they enclose an angle deviating from 0 ° with the longitudinal direction of the handrail 1. It is particularly advantageous if the angle deviates from the longitudinal direction by at least 30 °, in particular at least 45 °.
  • the two reinforcement layers 5 provided above or below the layer 4 are positioned in the handrail 1 such that the short fibers 6 of the one layer 5 under one are oriented at an acute angle to the longitudinal direction of the handrail 1 and the second reinforcement layer 5 is used in such a way that its short fibers 6 are preferably of the same size with respect to the However, the longitudinal direction is in the opposite direction. This results in a crossing arrangement of the short fibers 6 in these two adjacent layers 5.
  • the orientation of the short fibers 6 can be continued such that a crossing arrangement is again provided in the lip regions 1 b, where layers 5 adjoin one another .
  • All layers 5 or only a few layers 5 are positioned in such a way that their short fibers 6 run transversely to the longitudinal direction of the handrail 1.
  • Reinforcement layers 5 according to the invention form homogeneously constructed reinforcement layers which have an excellent elasticity in the handrail 1
  • Tissue overlaps which represent an inhomogeneity and weak point of the handrail in conventionally constructed handrails, are missing in the construction according to the invention.
  • the butt joints are designed so that the reinforcement layers 5 according to the invention are butted or overlapped at an angle of 30 to 90 ° only in the longitudinal direction, during which
  • Vulcanization flows the joint and can not form an inhomogeneous point in the handrail.
  • the problems with moisture absorption that often occur in conventional constructions with textile inserts are also eliminated in the construction according to the invention.
  • the particularly high hardness of the fiber-reinforced rubber material gives the handrail a high degree of transverse rigidity, and the very high rubber compound viscosity prevents the rubber material from penetrating through the sliding layer, which can increase the friction of the sliding layer on the guide rail in conventional handrails.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

L'invention concerne une main courante pour des escaliers mécaniques, tapis roulants ou similaires. Cette main courante présente une section en C, une couche coulissante (3) et une couche de recouvrement en caoutchouc (2) qui est contact avec l'utilisateur, ces deux couches servant de couches extérieures, ainsi qu'une couche présentant des éléments de traction, notamment des câbles d'acier noyés dans le caoutchouc et orientés dans le sens longitudinal, et, de chaque côté de l'élément de traction, au moins une couche de renforcement (5) s'étendant dans les zones de lèvres. Au moins une de ces couches de renforcement (5) est une couche de caoutchouc comportant des fibres courtes (6) qui sont réparties de manière homogène, présentent une orientation privilégiée et forment un angle différent de 0 DEG par rapport à la direction longitudinale de la main courante (1).
EP99944536A 1998-09-11 1999-08-27 Main courante Expired - Lifetime EP1112219B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT99944536T ATE239664T1 (de) 1998-09-11 1999-08-27 Handlauf

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT153698 1998-09-11
AT0153698A AT407377B (de) 1998-09-11 1998-09-11 Handlauf
PCT/EP1999/006308 WO2000015536A1 (fr) 1998-09-11 1999-08-27 Main courante

Publications (2)

Publication Number Publication Date
EP1112219A1 true EP1112219A1 (fr) 2001-07-04
EP1112219B1 EP1112219B1 (fr) 2003-05-07

Family

ID=3515603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99944536A Expired - Lifetime EP1112219B1 (fr) 1998-09-11 1999-08-27 Main courante

Country Status (11)

Country Link
US (1) US6673431B1 (fr)
EP (1) EP1112219B1 (fr)
JP (1) JP2002524372A (fr)
KR (1) KR20010073150A (fr)
CN (1) CN1113802C (fr)
AT (1) AT407377B (fr)
BR (1) BR9913628A (fr)
CA (1) CA2343037A1 (fr)
DE (1) DE59905487D1 (fr)
ES (1) ES2193743T3 (fr)
WO (1) WO2000015536A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7083037B2 (en) 2003-05-28 2006-08-01 Semperit Aktiengesellschaft Holding Splice construction for elongate sections

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JP2005225636A (ja) * 2004-02-13 2005-08-25 Mitsubishi Electric Corp 乗客コンベアの移動手摺、及びその製造方法
DE102004044951B4 (de) * 2004-09-16 2017-05-04 Semperit Ag Holding Handlauf und Führungsschiene für eine Personenbeförderungsanlage
WO2006110136A1 (fr) * 2005-04-08 2006-10-19 Otis Elevator Company Main courante d’un escalier roulant et son procede de fabrication
JP5258169B2 (ja) * 2005-05-09 2013-08-07 インベンテイオ・アクテイエンゲゼルシヤフト エスカレータまたは動く歩道のための新規タイプのハンドレール、およびこのようなハンドレールを備えたエスカレータまたは動く歩道
AT502900B1 (de) * 2005-11-09 2008-12-15 Semperit Ag Holding Handlauf
BRPI0520805A2 (pt) * 2005-12-28 2009-11-03 Otis Elevator Co artigo, e, método de produção de pelo menos uma porção de um corrimão de transportador de passageiros
CN101573278B (zh) * 2006-04-24 2013-02-20 奥蒂斯电梯公司 具有滑动层的乘客输送装置扶手及其制造方法
WO2008022034A2 (fr) * 2006-08-14 2008-02-21 Fenner Dunlop Americas, Inc. Structure renforcée flexible latéralement
EP2159184B1 (fr) * 2007-06-28 2014-08-06 Mitsubishi Electric Corporation Main courante mobile d'un tapis roulant de transport de personnes
JP5345146B2 (ja) * 2007-09-10 2013-11-20 イー エイチ シー カナダ インコーポレーテッド 押出し複合手すり用のすべり層を前処理する方法および装置
US9981415B2 (en) 2007-09-10 2018-05-29 Ehc Canada, Inc. Method and apparatus for extrusion of thermoplastic handrail
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
WO2016201578A1 (fr) 2015-06-19 2016-12-22 Ehc Canada, Inc. Procédé et appareil pour l'extrusion d'une rampe thermoplastique
US8820511B2 (en) * 2007-09-10 2014-09-02 Ehc Canada, Inc. Modified handrail
KR100985210B1 (ko) * 2008-02-05 2010-10-05 이경우 터미널 삽입기
KR100931709B1 (ko) * 2008-12-10 2009-12-14 주식회사 아이캔 이.에스 에스컬레이터와 무빙 사이드워크용 손잡이
KR102208025B1 (ko) 2013-09-26 2021-01-26 미쓰비시덴키 가부시키가이샤 에스컬레이터 난간의 제조 방법 및 에스컬레이터 난간
RU2717807C2 (ru) 2015-05-07 2020-03-25 ИЭйчСи Канада, Инк. Компактный поручень из композитного материала с улучшенными механическими характеристиками
JP6407438B2 (ja) * 2015-08-03 2018-10-17 三菱電機株式会社 乗客コンベヤ用移動手摺
CN105253760A (zh) * 2015-10-30 2016-01-20 依合斯电梯扶手（上海）有限公司 螺旋型扶手带及其制备方法
KR102267288B1 (ko) * 2020-07-13 2021-06-18 이성호 에스컬레이터 및 무빙워크용 자기성 스마트 패브릭 핸드레일 및 핸드레일 시스템

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Publication number Priority date Publication date Assignee Title
US7083037B2 (en) 2003-05-28 2006-08-01 Semperit Aktiengesellschaft Holding Splice construction for elongate sections

Also Published As

Publication number Publication date
EP1112219B1 (fr) 2003-05-07
ATA153698A (de) 2000-07-15
AT407377B (de) 2001-02-26
CN1113802C (zh) 2003-07-09
KR20010073150A (ko) 2001-07-31
CN1316972A (zh) 2001-10-10
JP2002524372A (ja) 2002-08-06
US6673431B1 (en) 2004-01-06
BR9913628A (pt) 2001-05-22
WO2000015536A1 (fr) 2000-03-23
CA2343037A1 (fr) 2000-03-23
DE59905487D1 (de) 2003-06-12
ES2193743T3 (es) 2003-11-01

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