EP0491725A1 - Handlauf für rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung. - Google Patents
Handlauf für rolltreppen, fahrsteige und dergleichen sowie verfahren zu seiner herstellung.Info
- Publication number
- EP0491725A1 EP0491725A1 EP90912644A EP90912644A EP0491725A1 EP 0491725 A1 EP0491725 A1 EP 0491725A1 EP 90912644 A EP90912644 A EP 90912644A EP 90912644 A EP90912644 A EP 90912644A EP 0491725 A1 EP0491725 A1 EP 0491725A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segments
- handrail according
- tension member
- handrail
- segment
- 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
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
Definitions
- the invention relates to a handrail for escalators, moving walks and the like, consisting of an endless, flexible strip with a grip area and guide areas that slide on a stationary track during operation, and one or more tension members made of high-strength, low-stretch materials embedded in the strip 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.
- articulated handrail strips are composed of individual members 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 sectional handrail rails 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.
- the invention has for its object to provide a handrail of the type mentioned, which can be manufactured simpler 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 segments closely following one another and in that the segments are firmly formed around the continuous tension member.
- the handrail according to the invention has the advantage that the segments can be completely 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 in the same operation during the manufacture of the individual segments.
- the segments forming the strip to be formed from a thermoplastic elastomer. These segments can be injection molded or blown around the tension member. Alternatively, the segments can also be produced from foamable polyurethane using the RIM process.
- the successive segments which expediently have an approximately rectangular shape in plan view, can overlap one another. This ensures that the handrail is closed to the outside, so that there is no risk of injury to the user.
- the overlapping areas can be formed by 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 a projecting tongue at one end and a recess adapted to this at its other end. 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 created during operation of the handrail strip.
- 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 strip is retained.
- the mutually facing sides of the segments are each provided with a projecting, deformable 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 the 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 vul anized 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 from a thermoplastic elastomer, they can be provided with molded, protruding knobs in the area of their sliding surfaces, for example in the form of a spherical cap, which can reduce the frictional force compared to the stationary track on which the handrail slides.
- 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 fed in 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, in that a segment around the Shaped 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 that points to the adjacent, already completed segment, the outer contour of the finished segment for closing the mold on this side is used and acts as part of the form.
- 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.
- Fi g. 1 a perspective view of a section of a dealership
- Fi g. 2 a section along the line I I -I I from Fi g. 1 and
- FIG. 3 shows a section similar to FIG. 2 through another embodiment of a handrail strip.
- 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, when the handrail strip 1 is in the assembled state, encompass a stationary guide track (not shown in the drawing) on which the driven hand strip 1 can slide.
- Ten steel cables 3 serving as tension members are embedded in the upper area of the handrail strip 1.
- 10 bar 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. For example
- the tops of the tongues 8 lie in the same plane as
- 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 5 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 handle bar 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 shape 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 at the same time.
- 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 hardnesses, so that the usual reinforcements can be dispensed with in a handrail strip made from them. This considerably simplifies the structure of the handle bar.
- the handle bar also has a good quality in terms of appearance.
- 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 made of thermoplastic elastomers lasts are also very environmentally friendly when disposed of, 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 embodiment according to FIG. 1 and 2. However, in order to ensure that the lips 17 and 18 are stretched
- 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 tension so that the segments lie close together and at the same time ensure that all the cables 3 carry along.
- knobs in the form of spherical caps on the inside of the segments in order to reduce the frictional force, which dome can be easily produced in one operation during the injection molding of the segments.
- textile inner layers which are inserted into the mold before injection molding.
Description
Claims
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 true EP0491725A1 (de) | 1992-07-01 |
EP0491725B1 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 (de) |
EP (1) | EP0491725B1 (de) |
AT (1) | ATE105829T1 (de) |
CA (1) | CA2067350A1 (de) |
DE (2) | DE3930351A1 (de) |
ES (1) | ES2056477T3 (de) |
WO (1) | WO1991004219A1 (de) |
Families Citing this family (25)
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 |
GB2327405A (en) * | 1997-07-18 | 1999-01-27 | Silvertown Uk Limited | Handrail of thermoplastic 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 |
US8186498B2 (en) * | 2007-06-28 | 2012-05-29 | Mitsubishi Electric Corporation | Handrail for passenger conveyor |
ES2625304T3 (es) | 2007-09-10 | 2017-07-19 | Ehc Canada, Inc. | Método y aparato de extrusión de un pasamanos termoplástico |
US9981415B2 (en) | 2007-09-10 | 2018-05-29 | Ehc Canada, Inc. | Method and apparatus for extrusion of thermoplastic handrail |
KR101517642B1 (ko) | 2007-09-10 | 2015-05-04 | 이에이치씨 캐나다, 인크. | 변형된 핸드레일 |
KR20100069674A (ko) | 2007-09-10 | 2010-06-24 | 이에이치씨 캐나다, 인크. | 압출된 복합 핸드레일을 위한 슬라이더 층의 전처리를 위한 방법과 장치 |
CN101909883A (zh) * | 2007-11-09 | 2010-12-08 | Ehc加拿大股份公司 | 具有阻挡层的弹性及回弹膜 |
US8662280B2 (en) * | 2008-05-21 | 2014-03-04 | Inventio Ag | Person conveying device, particularly escalator or moving walkway, with a handrail, and handrail for an escalator or a moving walkway |
UA99959C2 (uk) * | 2008-05-21 | 2012-10-25 | Инвентио Аг | Рухомий поручень для ескалатора або рухомої доріжки |
EP2288567B1 (de) * | 2008-05-21 | 2013-07-10 | Inventio AG | Handlauf für eine fahrtreppe oder einen fahrsteig |
WO2009141224A1 (de) | 2008-05-21 | 2009-11-26 | Inventio Ag | Handlauf für eine fahrtreppe oder einen fahrsteig |
CA2984255C (en) | 2015-05-07 | 2023-02-14 | Ehc Canada, Inc. | Compact composite handrails with enhanced mechanical properties |
ES2894684T3 (es) | 2015-06-19 | 2022-02-15 | Ehc Canada Inc | Método y aparato para la extrusión de pasamanos termoplástico |
Family Cites Families (13)
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 |
-
1989
- 1989-09-12 DE DE3930351A patent/DE3930351A1/de active Granted
-
1990
- 1990-08-27 CA CA002067350A patent/CA2067350A1/en not_active Abandoned
- 1990-08-27 ES ES90912644T patent/ES2056477T3/es not_active Expired - Lifetime
- 1990-08-27 DE DE59005770T patent/DE59005770D1/de not_active Expired - Fee Related
- 1990-08-27 WO PCT/DE1990/000656 patent/WO1991004219A1/de active IP Right Grant
- 1990-08-27 AT AT90912644T patent/ATE105829T1/de not_active IP Right Cessation
- 1990-08-27 EP EP90912644A patent/EP0491725B1/de not_active Expired - Lifetime
- 1990-08-27 US US07/838,404 patent/US5275270A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9104219A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0491725B1 (de) | 1994-05-18 |
WO1991004219A1 (de) | 1991-04-04 |
DE3930351A1 (de) | 1991-03-21 |
DE3930351C2 (de) | 1992-04-30 |
US5275270A (en) | 1994-01-04 |
DE59005770D1 (de) | 1994-06-23 |
ATE105829T1 (de) | 1994-06-15 |
ES2056477T3 (es) | 1994-10-01 |
CA2067350A1 (en) | 1991-03-13 |
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