EP1204584A1 - Stufe oder palette einer rolltreppe - Google Patents
Stufe oder palette einer rolltreppeInfo
- Publication number
- EP1204584A1 EP1204584A1 EP00947954A EP00947954A EP1204584A1 EP 1204584 A1 EP1204584 A1 EP 1204584A1 EP 00947954 A EP00947954 A EP 00947954A EP 00947954 A EP00947954 A EP 00947954A EP 1204584 A1 EP1204584 A1 EP 1204584A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic material
- pallet according
- pallet
- stage
- plastic
- 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
- B66B23/08—Carrying surfaces
- B66B23/12—Steps
Definitions
- the invention relates to a step or pallet of an escalator or an escalator.
- DE-C 41 34 626 shows an escalator step made of plastic, which contains profile bars which are designed as lattice profiles.
- the profile bars are connected to one end of the step, forming a chamber profile that extends across the step width.
- the profile bars here form reinforcement elements par excellence.
- EP-B 0 748 291 discloses a one-piece escalator step, which is formed by injection molding and which is formed entirely from a glass fiber-reinforced resin material. Below the tread surface, a plurality of profile bars running in different spatial planes, forming chambers, are provided as reinforcing elements.
- DE-A 1 97 22 81 9 relates to a step for an escalator or a pallet for a moving walk, which is composed of a glass fiber reinforced mixture of polycarbonate and polybutylene terephthalate. There is a reinforcement extending transversely to the direction of travel over the steps or pallets at the rear edge of the tread, which is designed as a framework.
- DE-Gbm 298 04 464 shows an escalator step or a moving walk pallet, which essentially consists of plastic, in particular a glass fiber reinforced plastic, and has a recess at the rear edge of the tread surface which captively receives a reinforcement profile.
- the reinforcement profile should preferably be a hollow metal profile which is accommodated in the recess with as little play as possible.
- the steps or pallets to be found in these documents essentially consist of an optionally fiber-reinforced plastic material. If these are formed solely from a plastic material, a large number of reinforcing lugs, ribs or the like must be provided below the tread surface so that the step or pallet obtains sufficient rigidity. If this is not desired, metallic reinforcement elements may be used to achieve the necessary rigidity.
- the object of the invention is to simplify the manufacturing process to optimize an essentially plastic step or pallet of an escalator or moving walkway in such a way that sufficient stiffness, at least of the step or pallet base body, can still be achieved without the use of complex stiffening elements. At the same time, a simplification of the mold structure should result in a cost reduction.
- This goal is achieved by a step or pallet of an escalator or a moving walk consisting of an outer shell consisting of a first plastic material, within which a core consisting of a second plastic material is embedded.
- This goal is also achieved by a process for the production of steps or pallets of an escalator or a moving walk, by introducing a first plastic material into a mold cavity with the simultaneous or staggered addition of a liquid or gaseous medium, which forms an outer shell in which Cavity is introduced a second plastic material which substantially completely fills the interior of the shell, reinforcing it.
- This goal is also achieved by an alternative method for the production of steps or pallets of an escalator or a moving walk, in that a plastic core, in particular a foam core, is inserted into a mold cavity and this is encapsulated under pressure by another plastic material.
- a plastic core in particular a foam core
- a base body is provided, which is provided with an essentially smooth outer peripheral surface (possibly with the exception of the tread area), the cavity of which is essentially completely filled with a hardness that can be predetermined by a foam.
- the medium which is preferably formed by nitrogen, causes the first plastic material to be pressed more or less uniformly into the region of the outer molded parts. If the second plastic material, preferably a plastic foam, is then injected into the cavity of the casing that is cooling and is still in the closed form, this is at least for the most part, but preferably completely, filled by the hardening foam material, which then provides the necessary rigidity, seen across the length of the step or pallet. More stiffening elements in the form of molded ribs or the like, or separate metallic components are therefore unnecessary. By keeping the mold closed, the expanding foam material cannot deform the outer shell. After it has hardened, a very light step or palette is created.
- the shape can be kept simple by means of essentially smooth-walled molded parts, as a result of which no inner molded parts forming the stiffening ribs are necessary.
- a solid plastic core which can optionally also be formed from a foam that can be specified, this is first inserted into the mold and then with another, i.e. molded plastic material.
- This requirement has the advantage that, due to the essentially liquid or pasty warm plastic material, good interlocking can be achieved between the solid foam core and the outer shell.
- the step or pallet in its simplest form can be formed from a basic body (outer shell with integrated foam core), which can be brought into active connection with other components.
- these can be consoles for receiving rollers, chains or the like. Edge strips of a different color may also be conceivable as so-called security elements.
- These components can be provided as separate components, which are then attached to the base body with connecting elements.
- the consoles can be made of different materials, such as plastic, possibly glass fiber reinforced, metal, eg aluminum.
- the step or pallet areas forming the receptacle for the connecting elements are preferably formed exclusively by the first, namely harder plastic material.
- plastics optionally in fiber-reinforced form (glass fiber, carbon fibers or the like) are used as materials for the outer shell, the selection here also having to be adapted to the application.
- the core consisting of a second plastic material, which is preferably formed from a foam of predeterminable hardness.
- FIG. 1 schematic diagram of an inventive step of an escalator
- FIG. 3 and 4 different representations of the stage according to FIG. 2, additionally including edge strips and connecting elements Fig. 5 palette in different views, formed from two different plastics including brackets and connecting elements
- FIG. 6 partial representation of a step with molded
- FIG. 7 partial representation of a pallet with molded
- Figure 1 shows a step 1 of an escalator, not shown, consisting of an outer shell 2, which consists of a first plastic material, preferably a polyester material.
- the usual ribs 4 are formed on the tread surface 3.
- the other contours are smooth-walled.
- the illustration according to FIG. 1 shows that the inner surfaces 5 are provided with different wall thicknesses.
- a core 6 formed from a second plastic material, in particular a hardness that can be predetermined, is embedded within the casing 2.
- FIG. 2 shows a schematic diagram of stage 1 according to FIG. 1, to which brackets 8, possibly made of non-plastic material, such as aluminum, are articulated by means of connecting elements 7.
- brackets 8 possibly made of non-plastic material, such as aluminum
- connecting elements 7 such as aluminum
- the consoles 8 are previously provided in the mold and are extrusion-coated by the first plastic material forming the outer casing 2.
- FIGS. 3 and 4 show different views of stage 1 according to FIG. 2.
- the outer shell 2, the brackets 8 and edge strips 9 can be seen, which in this example are connected to the outer shell 2 by screws 10.
- FIG. 4 also shows connecting elements 11 integrally formed on the console 8, on the one hand plugged in and on the other hand fastened by means of a screw connection 1 2 to approaches of the console 8.
- the outer shell 2 and the core 6 can also be seen.
- FIG. 5 shows a pallet 1 2 according to the invention, as it can be used in a moving walkway, not shown.
- the pallet 1 2 includes, analogously to the step according to FIGS.
- an outer casing 1 3 made of a first plastic material, within which a plastic core 1 4 is embedded.
- the plastic core (foam) was previously inserted into the mold and the first plastic material (sheath 1 3) was extrusion-coated.
- Consoles 1 5 and connecting elements 1 6 were also introduced into the mold, which were simultaneously encapsulated by the first plastic, so that a ready-to-use pallet that does not require post-processing is formed.
- the tread surface 1 7 is also provided with grooves 1 8 here. Analogously to the step according to FIG. 3, differently colored edge strips (not shown) can also be provided if required.
- FIG. 6 shows stage 1 as a partial representation.
- the outer casing 2 and the foamed-in core 6 can be seen.
- sacklock-like recesses 19, 20 are formed, which are provided for receiving the chain rollers 21 and the stepped rollers 22.
- the step rollers 21 are fixed in the areas 1 9, 20 by means of connecting elements 11 and screw connections 23.
- FIG. 7 shows a pallet 1 2 as a further partial illustration. A partial area of the outer casing 1 3 and the core 14 is shown. Analogously to FIG. 6, chain rollers 24 are also here on the outer casing 1 via connecting elements 25 in the molded-in recesses 1 9, 20 3 screwed on. Also recognizable is a pallet guide element 26 which is provided for connection to further pallets 1 2.
Landscapes
- Escalators And Moving Walkways (AREA)
- Handcart (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19937324 | 1999-08-10 | ||
DE19937324A DE19937324C2 (de) | 1999-08-10 | 1999-08-10 | Stufe oder Palette einer Rolltreppe |
PCT/EP2000/006490 WO2001010765A1 (de) | 1999-08-10 | 2000-07-08 | Stufe oder palette einer rolltreppe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1204584A1 true EP1204584A1 (de) | 2002-05-15 |
EP1204584B1 EP1204584B1 (de) | 2003-08-27 |
Family
ID=7917565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00947954A Expired - Lifetime EP1204584B1 (de) | 1999-08-10 | 2000-07-08 | Stufe oder palette einer rolltreppe |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1204584B1 (de) |
CN (1) | CN1180972C (de) |
AU (1) | AU6156900A (de) |
DE (2) | DE19937324C2 (de) |
HK (1) | HK1048797B (de) |
WO (1) | WO2001010765A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7726459B2 (en) * | 2004-07-08 | 2010-06-01 | Otis Elevator Company | Passenger conveyor step having an acoustic barrier |
DE102013022077A1 (de) * | 2013-12-23 | 2015-06-25 | Valeo Schalter Und Sensoren Gmbh | Gehäuse zur Aufnahme einer Wickelfeder, Wickelfederanordnung, Verfahren zur Herstellung eines solchen Gehäuses, Verfahren zur Herstellung einer solchen Wickelfederanordnung und Kraftfahrzeug mit einer solchen Wickelfederanordnung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6056180B2 (ja) * | 1979-10-17 | 1985-12-09 | 旭化成株式会社 | 射出成形用ポリエステルの結晶化促進剤 |
DE4134626C1 (en) * | 1991-10-19 | 1992-10-29 | 4270 Dorsten De Stewing Kunststoffbetrieb Gmbh | Escalator with link chain coupled steps - which are of plastics with grid profiles forming chambers over step width for tread end coupling |
US5350049A (en) * | 1993-07-15 | 1994-09-27 | Otis Elevator Company | Wear resistant safety coating for people moving device treadplates |
US5358089A (en) * | 1994-03-01 | 1994-10-25 | Riedel Hans Dieter | Plastic escalator step |
DE29609299U1 (de) * | 1996-05-24 | 1997-11-06 | Kone Oy | Trittelement für Rolltreppen und Rollsteige |
DE19722819C2 (de) * | 1997-05-30 | 2000-06-29 | Thyssen Aufzuege Gmbh | Fahrtreppenstufe oder Fahrsteigpalette |
DE29804464U1 (de) * | 1998-03-12 | 1998-05-28 | Thyssen Aufzuege Gmbh | Fahrtreppenstufe oder Fahrsteigpalette |
-
1999
- 1999-08-10 DE DE19937324A patent/DE19937324C2/de not_active Expired - Fee Related
-
2000
- 2000-07-08 CN CNB008140685A patent/CN1180972C/zh not_active Expired - Fee Related
- 2000-07-08 EP EP00947954A patent/EP1204584B1/de not_active Expired - Lifetime
- 2000-07-08 AU AU61569/00A patent/AU6156900A/en not_active Abandoned
- 2000-07-08 DE DE50003471T patent/DE50003471D1/de not_active Expired - Lifetime
- 2000-07-08 WO PCT/EP2000/006490 patent/WO2001010765A1/de active IP Right Grant
-
2003
- 2003-02-12 HK HK03101011.0A patent/HK1048797B/zh not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0110765A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001010765A1 (de) | 2001-02-15 |
CN1378520A (zh) | 2002-11-06 |
DE19937324A1 (de) | 2001-03-08 |
HK1048797A1 (en) | 2003-04-17 |
DE50003471D1 (de) | 2003-10-02 |
EP1204584B1 (de) | 2003-08-27 |
AU6156900A (en) | 2001-03-05 |
DE19937324C2 (de) | 2001-09-06 |
CN1180972C (zh) | 2004-12-22 |
HK1048797B (zh) | 2005-04-29 |
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