WO2003025432A1 - Chain drive - Google Patents

Chain drive Download PDF

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Publication number
WO2003025432A1
WO2003025432A1 PCT/EP2002/009803 EP0209803W WO03025432A1 WO 2003025432 A1 WO2003025432 A1 WO 2003025432A1 EP 0209803 W EP0209803 W EP 0209803W WO 03025432 A1 WO03025432 A1 WO 03025432A1
Authority
WO
WIPO (PCT)
Prior art keywords
bushes
link chain
shaped body
chain
disc
Prior art date
Application number
PCT/EP2002/009803
Other languages
German (de)
French (fr)
Inventor
Alexander Pietz
Original Assignee
Kone Corporation
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 Kone Corporation filed Critical Kone Corporation
Publication of WO2003025432A1 publication Critical patent/WO2003025432A1/en

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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
    • B66B23/02—Driving gear
    • B66B23/026—Driving gear with a drive or carrying sprocket wheel located at end portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/02—Belt- or chain-engaging elements
    • B65G23/04—Drums, rollers, or wheels
    • B65G23/06—Drums, rollers, or wheels with projections engaging abutments on belts or chains, e.g. sprocket wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/12—Toothed members; Worms with body or rim assembled out of detachable parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels
    • F16H55/303—Chain-wheels for round linked chains, i.e. hoisting chains with identical links

Definitions

  • the invention relates to a device for deflecting link chains, in particular in the deflection area of a passenger conveyor system such as an escalator or an escalator, the individual links of the link chain being connected to one another via bolts and bushes surrounding them.
  • DE-A 1809976 shows an arrangement at a reversing station for the step belt of an escalator, with a curved track for the trailing rollers of the steps, a fixed deflection pulley being arranged on the side of the pull chain of the step belt, which has a curved track for the front rollers who carries steps.
  • the pull chain of the step belt is provided with rollers that roll on the guide rail of the deflection pulley.
  • a stationary, i.e. non-rotatable, disc to be used where, due to the lack of driving elements, no drive can be provided in the region of the disc.
  • a pure reversing station is thus described, the deflection of the rollers taking place in the above-mentioned rails.
  • Such a sprocket is described for example in DE-A 4220606.
  • ring-like damping elements made of a wear-resistant plastic are provided, which are interchangeably fastened in pairs lying on both sides of the chain wheel disc, the lugs of the chain rotating around the chain are supported on it to reduce noise.
  • a considerable amount of construction work has to be carried out on both sides of the sprocket wheel, the wear of the damping elements being not insignificant, and consequently a relatively quick replacement of worn damping elements is necessary.
  • the aim of the subject matter of the invention is to further develop a generic device in such a way that a construction is provided without the use of protective rollers, which takes the functionality of the protective roller out of the drive chain and relocates it into the deflection element, with the wear on the bushes of the link chains being low. This is in view of the fact that modifications to the deflecting member are easier and also more cost-effective to handle than the effort in the area of each socket.
  • a rotatable deflecting element in the form of a possibly drivable ring or disc-shaped body is arranged in the respective deflecting area, in the outer circumferential area, seen in the circumferential direction, several with a predeterminable one Interchangeable receiving elements positioned at a distance from one another are provided for guiding the bushes of the link chain.
  • the subject of the invention thus makes it possible to dispense with the expensive protective rollers in the area of each bushing of the link chain.
  • receiving elements are interchangeably provided in the outer circumferential area of the disk-shaped or ring-shaped body in a corresponding number with a predeterminable distance from one another.
  • the bushings engage in these spherical spheres with as little wear as possible, so that here too the shifted wear is low and the service life of the receiving elements is long.
  • the receiving elements can be easily replaced by loosening the fastening elements, which means that the costs that would otherwise be incurred by replacing a new link chain can be kept very low.
  • the chain wheel is thus formed by the ring-shaped or disk-shaped base body in operative connection with the exchangeable receiving elements, the spherical caps in particular being made from materials which make the frictional engagement of the bushings as wear-free as possible.
  • a Sinderbronze with embedded lubricant is conceivable.
  • the object of the invention is illustrated in more detail using a schematic diagram and is described as follows:
  • a disk-shaped body 1 is shown as a deflecting element for a link chain, not shown.
  • the disk-shaped body 1 is rotatable about its central axis 2 and can be driven if necessary.
  • a plurality of receiving elements 4 are provided on the circumference 3 of the disk-shaped body 1.
  • Each receiving element 4 contains a cap 5 for receiving the only indicated bushes 6 of the link chain.
  • the dome 5 is on the one hand contour-optimized to ensure that the bushing 6 engages with as little wear as possible and, in this example, is formed on the other hand from a sintered bronze with incorporated lubricant.
  • the sintered bronze thus represents a material that is softer than the material of the bushing 6, so that the wear is shifted from the bushings 6 in the direction of the spherical cap 5.
  • Each receiving element 4 has a radially extending leg 7, which is provided interchangeably with the disk-shaped body 1 via fastening elements such as screws 8 or bolts 9. This measure ensures easy replacement of the respective receiving element 4 when the cap 5 is worn.
  • any other suitable material can also be used, the person skilled in the art adapting his selection to the respective application.

Abstract

The invention relates to a device for deviating plate link chains, in particular in the deviation zone of a passenger transport installation, such as an escalator or a moving walkway. The individual plate links of the plate link chain are interconnected by means of bolts and bushes (6) which surround said bolts. A rotatable deviation organ (1) in the form of an optionally driven ring or disc-type body for each plate link chain is located in the respective deviation zones. The external circumference of said body, viewed from the direction of said circumference, is provided with several interchangeable receiving elements (4), positioned at a predeterminable distance from one another, for guiding the bushes (6) of the plate link chain.

Description

Kettenantrieb, insbesondere für Personenförderanlagen Chain drive, especially for passenger conveyor systems
Die Erfindung betrifft eine Einrichtung zum Umlenken von Laschenketten, insbesondere im Umlenkbereich einer Personenförderanlage wie einer Rolltreppe oder eines Rollsteiges, wobei die einzelnen Laschen der Laschenkette über Bolzen und diese umgebende Buchsen miteinander verbunden sind.The invention relates to a device for deflecting link chains, in particular in the deflection area of a passenger conveyor system such as an escalator or an escalator, the individual links of the link chain being connected to one another via bolts and bushes surrounding them.
Der DE-A 1809976 ist eine Anordnung an einer Umkehrstation für das Stufenband einer Fahrtreppe zu entnehmen, mit einer kurvenförmigen Laufschiene für die Schlepprollen der Stufen, wobei an der Seite der Zugkette des Stufenbandes eine feststehende Umlenkscheibe angeordnet ist, die eine kurvenförmige Laufschiene für die Vorderrollen der Stufen trägt. Die Zugkette des Stufenbandes ist mit Laufrollen versehen, die auf der Laufschiene der Umlenkscheibe abrollen. Bei dieser Ausgestaltungsform kommt eine stationäre, d.h. nicht drehbare, Scheibe zum Einsatz, wobei an dieser Stelle mangels Mitnahmeelementen kein Antrieb im Bereich der Scheibe vorgesehen werden kann. Somit wird eine reine Umkehrstation beschrieben, wobei die Umlenkung der Laufrollen in den genannten Laufschienen erfolgt.DE-A 1809976 shows an arrangement at a reversing station for the step belt of an escalator, with a curved track for the trailing rollers of the steps, a fixed deflection pulley being arranged on the side of the pull chain of the step belt, which has a curved track for the front rollers who carries steps. The pull chain of the step belt is provided with rollers that roll on the guide rail of the deflection pulley. In this embodiment, a stationary, i.e. non-rotatable, disc to be used, where, due to the lack of driving elements, no drive can be provided in the region of the disc. A pure reversing station is thus described, the deflection of the rollers taking place in the above-mentioned rails.
Insbesondere bei Personenförderanlagen, wie Rolltreppen und Rollsteigen, werden derzeit Kettenräder mit entsprechenden Aufnahmekalotten für die Gelenkbuchsen der insbesondere als Gelenkketten (Laschenketten) ausgebildeten Förderorgane eingesetzt.In particular in the case of passenger conveyor systems, such as escalators and moving walks, sprockets with corresponding receiving spheres are currently used for the articulated bushes of the conveying members, which are in particular designed as articulated chains (link chains).
Ein derartiges Kettenrad ist beispielsweise in der DE-A 4220606 beschrieben. Zur Reduzierung von Schlägen (Polygoneffekt) sind ringartige Dämpfungselemente aus einem verschleißfesten Kunststoff vorgesehen, die, jeweils paarweise beidseitig der Kettenradscheibe anliegend, austauschbar befestigt sind, wobei beim Umlaufen der Kette die Laschen derselben geräuschdämpfend darauf abgestützt sind. Hier muß beidseitig der Kettenradscheibe ein erheblicher bautechnischer Aufwand betrieben werden, wobei der Verschleiß der Dämpfungselemente nicht unerheblich ist und demzufolge ein relativ schneller Austausch verschlissener Dämpfungselemente notwendig ist.Such a sprocket is described for example in DE-A 4220606. In order to reduce impacts (polygon effect), ring-like damping elements made of a wear-resistant plastic are provided, which are interchangeably fastened in pairs lying on both sides of the chain wheel disc, the lugs of the chain rotating around the chain are supported on it to reduce noise. Here, a considerable amount of construction work has to be carried out on both sides of the sprocket wheel, the wear of the damping elements being not insignificant, and consequently a relatively quick replacement of worn damping elements is necessary.
In der Vergangenheit hat sich herausgestellt, daß es beim Ketteneinlauf zu einem erhöhten Verschleiß der Buchsen gekommen ist, so daß die Standzeit der Laschenketten reduziert wurde. Um dieses Problem zu beseitigen, wurden im Bereich der Buchsen sogenannte Schonrollen eingesetzt, die relativ gegenüber den Buchsen bewegbar sind und demzufolge der Eingriff in das Kettenrad über selbige erfolgt. Die Buchsen werden somit nur noch mittelbar beaufschlagt, wodurch die Standzeit der Laschenketten erheblich erhöht werden konnte. In Abhängigkeit von der Länge einer jeden Antriebskette müssen eine Vielzahl von Schonrollen im Bereich der Buchsen vorgesehen werden, wodurch die Antriebskette unverhältnismäßig verteuert wird.In the past, it has been found that the bushes have increased wear during chain entry, so that the service life of the link chains has been reduced. In order to eliminate this problem, so-called protective rollers were used in the area of the bushings, which are movable relative to the bushings and consequently the engagement in the chain wheel takes place via the same. The sockets are thus only acted on indirectly, which has significantly increased the service life of the link chains. Depending on the length of each drive chain, a large number of protective rollers must be provided in the area of the bushes, which makes the drive chain disproportionately expensive.
Ziel des Erfindungsgegenstandes ist es, eine gattungsgemäße Einrichtung dahingehend weiterzubilden, daß ohne Verwendung von Schonrollen eine Konstruktion bereitgestellt wird, die die Funktionalität der Schonrolle aus der Antriebskette herausnimmt und selbige in das Umlenkorgan verlegt, wobei der Verschleiß an den Buchsen der Laschenketten gering sein soll. Dies im Hinblick darauf, daß Modifizierungen am Umlenkorgan leichter und auch kosteneinsparender zu handhaben sind, als der Aufwand im Bereich einer jeden Buchse.The aim of the subject matter of the invention is to further develop a generic device in such a way that a construction is provided without the use of protective rollers, which takes the functionality of the protective roller out of the drive chain and relocates it into the deflection element, with the wear on the bushes of the link chains being low. This is in view of the fact that modifications to the deflecting member are easier and also more cost-effective to handle than the effort in the area of each socket.
Dieses Ziel wird dadurch erreicht, daß im jeweiligen Umlenkbereich je Laschenkette ein drehbares Umlenkorgan in Form eines ggf. antreibbaren ring- oder scheibenförmigen Körpers angeordnet ist, in dessen äußerem Umfangsbereich, in Umfangsrichtung gesehen, mehrere mit vorgebbarem Abstand zueinander positionierte austauschbare Aufnahmeelemente zur Führung der Buchsen der Laschenkette vorgesehen sind.This goal is achieved in that a rotatable deflecting element in the form of a possibly drivable ring or disc-shaped body is arranged in the respective deflecting area, in the outer circumferential area, seen in the circumferential direction, several with a predeterminable one Interchangeable receiving elements positioned at a distance from one another are provided for guiding the bushes of the link chain.
Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den Unteransprüchen zu entnehmen.Advantageous further developments of the subject matter of the invention can be found in the subclaims.
Durch den Erfindungsgegenstand kann somit auf die teuren Schonrollen im Bereich einer jeden Buchse der Laschenkette verzichtet werden. In Abhängigkeit von der gegebenen Kettenteilung werden in entsprechender Anzahl mit vorgebbarem Abstand zueinander Aufnahmeelemente austauschbar im äußeren Umfangsbereich des Scheiben- oder ringförmigen Körpers vorgesehen. Infolge der verschleißoptimierten Ausgestaltung des Aufnahmekörpers, respektive der konturoptimierten Kalotte, ist es nun möglich, den Verschleiß, der beim Einlauf in das Umlenkorgan ansonsten im Buchsenbereich stattfinden würde, in den Bereich des Aufnahmeelementes, respektive der Kalotte, zu verlagern. Infolge der Konturoptimierung des Kalottenbereiches wird ein möglichst verschleißarmer Eingriff der Buchsen in diese Kalotten sichergestellt, so daß auch hier der verlagerte Verschleiß gering ausfällt und die Standzeit der Aufnahmeelemente hoch ist. Die Aufnahmeelemente können durch Lösen der Befestigungselemente problemlos ausgetauscht werden, wodurch die Kosten, die sonst durch Austausch einer neuen Laschenkette anfallen würden, sehr gering gehalten werden können.The subject of the invention thus makes it possible to dispense with the expensive protective rollers in the area of each bushing of the link chain. Depending on the given chain pitch, receiving elements are interchangeably provided in the outer circumferential area of the disk-shaped or ring-shaped body in a corresponding number with a predeterminable distance from one another. As a result of the wear-optimized design of the receiving body, or the contour-optimized spherical cap, it is now possible to shift the wear, which would otherwise take place in the bushing area when entering the deflection member, into the region of the receiving element or the spherical cap. As a result of the contour optimization of the spherical cap area, the bushings engage in these spherical spheres with as little wear as possible, so that here too the shifted wear is low and the service life of the receiving elements is long. The receiving elements can be easily replaced by loosening the fastening elements, which means that the costs that would otherwise be incurred by replacing a new link chain can be kept very low.
Das Kettenrad wird somit durch den ring- oder scheibenförmigen Grundkörper in Wirkverbindung mit den austauschbaren Aufnahmeelementen gebildet, wobei insbesondere die Kalotten aus Materialien gefertigt sind, die den reibenden Eingriff der Buchsen möglichst verschleißfrei gestalten. Vorstellbar ist z.B. eine Sinderbronze mit eingelagertem Schmierstoff. Anhand einer Prinzipskizze ist der Erfindungsgegenstand näher dargestellt und wird wie folgt beschrieben:The chain wheel is thus formed by the ring-shaped or disk-shaped base body in operative connection with the exchangeable receiving elements, the spherical caps in particular being made from materials which make the frictional engagement of the bushings as wear-free as possible. For example, a Sinderbronze with embedded lubricant is conceivable. The object of the invention is illustrated in more detail using a schematic diagram and is described as follows:
Als Prinzipskizze ist ein scheibenförmiger Körper 1 als Umlenkorgan für eine nicht weiter dargestellte Laschenkette angeführt. Der scheibenförmige Körper 1 ist um seine Mittelachse 2 drehbar und bedarfsweise antreibbar vorgesehen. In Abhängigkeit von der gewählten Kettenteilung sind am Umfang 3 des scheibenförmigen Körpers 1 mehrere Aufnahmeelemente 4 vorgesehen. Ein jedes Aufnahmeelement 4 beinhaltet eine Kalotte 5 zur Aufnahme der nur angedeuteten Buchsen 6 der Laschenkette. Die Kalotte 5 ist einerseits konturoptimiert, um einen möglichst verschleißarmen Eingriff der Buchse 6 zu gewährleisten und ist in diesem Beispiel andererseits aus einer Sinterbronze mit eingelagertem Schmierstoff gebildet. Die Sinterbronze stellt somit ein Material dar, das weicher ist, als das Material der Buchse 6, so daß der Verschleiß von den Buchsen 6 in Richtung der Kalotte 5 verlagert wird. Ein jedes Aufnahmeelement 4 verfügt über einen radial verlaufenden Schenkel 7, der über Befestigungselemente wie Schrauben 8 oder Bolzen 9 austauschbar mit dem scheibenförmigen Körper 1 vorgesehen ist. Durch diese Maßnahme ist ein leichter Austausch des jeweiligen Aufnahmeelementes 4 bei Verschleiß der Kalotte 5 sichergestellt. Anstelle der Sinterbronze kann auch jedes andere geeignete Material eingesetzt werden, wobei der Fachmann seine Auswahl dem jeweiligen Anwendungsfall anpaßt. As a basic sketch, a disk-shaped body 1 is shown as a deflecting element for a link chain, not shown. The disk-shaped body 1 is rotatable about its central axis 2 and can be driven if necessary. Depending on the selected chain pitch, a plurality of receiving elements 4 are provided on the circumference 3 of the disk-shaped body 1. Each receiving element 4 contains a cap 5 for receiving the only indicated bushes 6 of the link chain. The dome 5 is on the one hand contour-optimized to ensure that the bushing 6 engages with as little wear as possible and, in this example, is formed on the other hand from a sintered bronze with incorporated lubricant. The sintered bronze thus represents a material that is softer than the material of the bushing 6, so that the wear is shifted from the bushings 6 in the direction of the spherical cap 5. Each receiving element 4 has a radially extending leg 7, which is provided interchangeably with the disk-shaped body 1 via fastening elements such as screws 8 or bolts 9. This measure ensures easy replacement of the respective receiving element 4 when the cap 5 is worn. Instead of the sintered bronze, any other suitable material can also be used, the person skilled in the art adapting his selection to the respective application.

Claims

P a t e n t a n s p r ü c h e Patent claims
1 . Einrichtung zum Umlenken von Laschenketten, insbesondere im Umlenkbereich einer Personenförderanlage, wie einer Rolltreppe oder eines Rollsteiges, wobei die einzelnen Laschen der Laschenkette über Bolzen und diese umgebende Buchsen (6) miteinander verbunden sind, dadurch gekennzeichnet, daß im jeweiligen Umlenkbereich je Laschenkette ein drehbares Umlenkorgan (1 ) in Form eines ggf. antreibbaren ring- oder scheibenförmigen Körpers angeordnet ist, in dessen äußerem Umfangsbereich (3), in Umfangsrichtung gesehen, mehrere mit vorgebbarem Abstand zueinander positionierte, austauschbare Aufnahmeelemente (4) zur Führung der Buchsen (6) der Laschenkette vorgesehen sind.1 . Device for deflecting link chains, in particular in the deflection area of a passenger conveyor system, such as an escalator or a moving walk, the individual links of the link chain being connected to one another via bolts and bushes (6) surrounding them, characterized in that in the respective deflection area, a rotatable deflection member is provided for each link chain (1) is arranged in the form of an optionally drivable annular or disc-shaped body, in the outer circumferential area (3) of which, viewed in the circumferential direction, a plurality of interchangeable receiving elements (4) positioned at a predeterminable distance from one another for guiding the bushes (6) of the link chain are provided.
2. Einrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß die Aufnahmeelemente (4) buchsenseitig mit Kalotten (5) aus vom Buchsenwerkstoff unterschiedlichen Materialien gebildet sind.2. Device according to claim 1, characterized in that the receiving elements (4) on the socket side with calottes (5) are formed from materials different from the bushing material.
3. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Material der Kalotten (5) weicher, als das der Buchsen (6) ausgebildet ist.3. Device according to claim 1 or 2, characterized in that the material of the domes (5) is softer than that of the bushes (6) is formed.
4. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Kalotten (5) insbesondere aus Sinterbronze mit eingelagertem Schmierstoff gebildet sind.4. Device according to one of claims 1 to 3, characterized in that the spherical caps (5) are formed in particular from sintered bronze with embedded lubricant.
5. Einrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kalotten (5) für einen verschleißarmen Buchseneingriff konturoptimiert ausgebildet sind. Einrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das jeweilige Aufnahmeelement (4) über mindestens einen parallel zur Stirnfläche des ring- oder scheibenförmigen Körpers (1 ) verlaufenden Schenkel (7) verfügt, über welchen es mittels Befestigungselementen, wie Schrauben (8), Stiften (9) oder dergleichen, gegenüber dem ring- oder scheibenförmigen Körper (1 ) austauschbar festlegbar ist. 5. Device according to one of claims 1 to 4, characterized in that the spherical caps (5) are contour-optimized for a low-wear bushing engagement. Device according to one of claims 1 to 5, characterized in that the respective receiving element (4) has at least one leg (7) running parallel to the end face of the annular or disc-shaped body (1), via which leg it is fastened by means of fastening elements such as screws ( 8), pins (9) or the like, can be fixed interchangeably with respect to the ring-shaped or disk-shaped body (1).
PCT/EP2002/009803 2001-09-19 2002-09-03 Chain drive WO2003025432A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10146206.9 2001-09-19
DE2001146206 DE10146206A1 (en) 2001-09-19 2001-09-19 Chain drive, especially for passenger conveyor systems

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WO2003025432A1 true WO2003025432A1 (en) 2003-03-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109282013A (en) * 2018-11-22 2019-01-29 高新技术产业开发区创宏机械厂 A kind of modular multi-function sprocket wheel

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR38686E (en) * 1930-01-28 1931-06-26 Endless continuous conveyor
US2824458A (en) * 1956-05-25 1958-02-25 Wald Ind Inc Gear
DE1575573A1 (en) * 1967-04-29 1970-01-29 Machf Breda V H Backer & Rueb Chain wheel for transport systems, escalators and moving walkways
DE1809976A1 (en) 1968-11-20 1970-06-04 Rheinstahl Eggers Kehrhahn Reversing station for escalators
GB1230454A (en) * 1967-06-07 1971-05-05
US4571218A (en) * 1983-07-11 1986-02-18 Reeves Jr James B Adjustable pitch sprocket
DE4220606A1 (en) 1992-04-07 1993-10-14 Wulf Erich & Sohn Chain wheel for link chain - has paired ring-shaped damping components, fixed on both sides by tension screw so that when chain rotates its shackles are noise-damped
DE20115456U1 (en) * 2001-09-19 2001-12-13 Kone Corp Chain drive, especially for passenger conveyor systems

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR38686E (en) * 1930-01-28 1931-06-26 Endless continuous conveyor
US2824458A (en) * 1956-05-25 1958-02-25 Wald Ind Inc Gear
DE1575573A1 (en) * 1967-04-29 1970-01-29 Machf Breda V H Backer & Rueb Chain wheel for transport systems, escalators and moving walkways
GB1230454A (en) * 1967-06-07 1971-05-05
DE1809976A1 (en) 1968-11-20 1970-06-04 Rheinstahl Eggers Kehrhahn Reversing station for escalators
US4571218A (en) * 1983-07-11 1986-02-18 Reeves Jr James B Adjustable pitch sprocket
DE4220606A1 (en) 1992-04-07 1993-10-14 Wulf Erich & Sohn Chain wheel for link chain - has paired ring-shaped damping components, fixed on both sides by tension screw so that when chain rotates its shackles are noise-damped
DE20115456U1 (en) * 2001-09-19 2001-12-13 Kone Corp Chain drive, especially for passenger conveyor systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109282013A (en) * 2018-11-22 2019-01-29 高新技术产业开发区创宏机械厂 A kind of modular multi-function sprocket wheel

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Publication number Publication date
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