EP1411187A2 - Roller blind-type cover for servicing pits - Google Patents
Roller blind-type cover for servicing pits Download PDFInfo
- Publication number
- EP1411187A2 EP1411187A2 EP03023537A EP03023537A EP1411187A2 EP 1411187 A2 EP1411187 A2 EP 1411187A2 EP 03023537 A EP03023537 A EP 03023537A EP 03023537 A EP03023537 A EP 03023537A EP 1411187 A2 EP1411187 A2 EP 1411187A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- plain bearing
- roller
- cover according
- sprocket engagement
- engagement sleeve
- 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
- 239000000463 material Substances 0.000 claims description 9
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/06—Pits or building structures for inspection or services
Definitions
- the present invention relates to a shutter-like cover for repair or Installation pits, with a large number of parallel stringers, with their ends on at Pit edge arranged rails are supported, the stringers at the Bottom connected by parallel to the rails running chains and by acting on the chains sprocket drive from the covering in a Rest position in the pit or a separate receiving space and vice versa are movable, with the end support of the support beams on the rails Run over rollers whose axes preferably as an extension of the joint axes the chain links are formed.
- Such a cover is known, for example from the applicant going back DE 38 25 718 A1.
- a roller shutter-like cover shown, in which the axes of the rollers as an extension of the joint axes of Chain links are formed.
- the rollers are directly on the joint axes rotatably mounted.
- the rollers exist as well as the joint axes mainly made of stainless steel, especially stainless steel.
- white rust forms.
- it is essential in the conventional constructions from time to time the stringers chains, in particular the chain joints and roller bearings lubricate. It is evident that such lubrication on relatively open Points leading to contamination in the mounting pit. These pollutions lead to an increased risk of slipping for the assembly staff on the one hand and on the other hand.
- the present invention is therefore the object of a chain and Roller construction for a shutter-like cover of the type mentioned here for To provide, in the subsequent lubrication of the chain joints as well Roller bearing is dispensable.
- plain bearing bushings By inventively provided plain bearing bushings is thus a Friction pairing between similar materials, such as steel avoided. As a result, the white rust mentioned in the introduction can no longer arise.
- the plain bearing bushes By the formation of the plain bearing bushes as self-lubricating bearing bushes is a Subsequent lubrication during operation of the cover is no longer required. The The aforementioned risk of contamination is avoided.
- the plain bearing bushes have at least one end face circumferential collar, i. projecting radially outward and over the circumference extending projection.
- this collar can also frontally a friction pairing be avoided between the same materials, i. for example between roller on the one hand and the facing cheek of a chain link on the other. Too too on the opposite end face of the roller to such a friction pairing avoid, can also at this the plain bearing bush with a circumferential collar be provided.
- each half socket on one of the two End faces has a circumferential collar, so that the socket halves respectively can be used in such an assigned bearing bore of the roller that at each Face of the bearing bore of the circumferential collar comes to rest.
- the plain bearing bushes are preferably made of a sintered material Lubricant receiving bags. They are lubricated before assembly soaked. Lubricants include both liquid and solid lubricants, such as graphite, in question.
- the plain bearing bushes are within an associated bearing bore of Roller or chain-engaging sleeve pressed, shrunk or glued.
- Figures 1 and 2 show only a part of a shutter-like cover, namely a support beam 10, whose front ends arranged on the pit edge and Support rails not shown here is supported.
- a support beam 10 whose front ends arranged on the pit edge and Support rails not shown here is supported.
- a chain link eleventh fastened, wherein the attachment and dimensioning of the chain links is such that the joints formed by the chain links 12 each in the region of a gap between adjacent support beams 10 are arranged.
- These joints are in the Joint position of the cover respectively at the lower end of the column, as well as this Figure 2 lets recognize.
- the end-side support of the supporting beam 10 is not closer to here shown rails over rollers 13 whose axes as an extension of the Joint axes 14 of the individual chain links 11 are formed.
- each hinge axis 14 of the Chain links 11 between the two cheeks 16 thereof a sprocket engagement sleeve 17 rotatably mounted.
- the storage of sprocket engagement sleeves 17th also takes place in each case via a self-lubricating plain bearing bushing 18th
- the aforementioned plain bearing bushes 15, 18 are each within a bearing bore of roller 13 or sprocket engagement sleeve 17 is pressed, shrunk or also glued.
- roller 13 In FIG. 2, the right-hand joint axis 14 is assigned for a better overview Roller not shown. In principle, however, it is also conceivable that only each second hinge axis is equipped with a roller 13. It is also conceivable that Roller 13 to be arranged centrally on each chain link. Of course then must also corresponding point a frontally outwardly projecting roller rotation axis be provided.
- the plain bearing bushes 15, 18 each end face slightly projecting beyond the roller 13 or sprocket engagement sleeve 17, so that also frontally no friction pairing between similar materials, in particular Steel, occurs.
- a washer to arrange self-lubricating material.
- Such a washer should then too preferably between the roller 13 and an outer collar of the hinge axis 14th be arranged so that even in this area no friction between similar materials occurs.
- the plain bearing bushes 15, 18 from a Sintered material produced with lubricant receiving pockets or openings.
- the base material can be bronze.
- the chain links 11 are screwed to the underside of the support beam 10 respectively.
- the corresponding screw connections are shown in Figures 1 and 2 with the Reference numeral 19 indicated.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chain Conveyers (AREA)
- Sliding-Contact Bearings (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Massaging Devices (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Protection Of Plants (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine rolladenartige Abdeckung für Reparatur- oder Montagegruben, mit einer Vielzahl paralleler Tragbalken, die mit ihren Enden auf am Grubenrand angeordneten Laufschienen abgestützt sind, wobei die Tragbalken an der Unterseite mittels parallel zu den Laufschienen verlaufender Ketten verbunden und durch einen auf die Ketten wirkenden Kettenrad-Antrieb aus der Abdeckstellung in eine Ruhestellung in der Grube oder einem gesonderten Aufnahmeraum und umgekehrt bewegbar sind, wobei die endseitige Abstützung der Tragbalken auf den Laufschienen über Laufrollen erfolgt, deren Achsen vorzugsweise als Verlängerung der Gelenkachsen der Kettenglieder ausgebildet sind.The present invention relates to a shutter-like cover for repair or Installation pits, with a large number of parallel stringers, with their ends on at Pit edge arranged rails are supported, the stringers at the Bottom connected by parallel to the rails running chains and by acting on the chains sprocket drive from the covering in a Rest position in the pit or a separate receiving space and vice versa are movable, with the end support of the support beams on the rails Run over rollers whose axes preferably as an extension of the joint axes the chain links are formed.
Eine derartige Abdeckung ist zum Beispiel bekannt aus der auf den Anmelder zurückgehenden DE 38 25 718 A1. Konkret ist dort eine rolladenartige Abdeckung dargestellt, bei der die Achsen der Laufrollen als Verlängerung der Gelenkachsen der Kettenglieder ausgebildet sind. Die Laufrollen sind dabei unmittelbar auf den Gelenkachsen drehbar gelagert. Die Laufrollen bestehen ebenso wie die Gelenkachsen vornehmlich aus rostfreiem Stahl, insbesondere Edelstahl. In der Praxis hat sich nun gezeigt, dass nach einiger Betriebsdauer sich zwischen Laufrolle und Gelenkachse sog. "Weißrost" bildet. Um einem dadurch bedingten vorzeitigen Verschleiß entgegenzuwirken, ist es bei den herkömmlichen Konstruktionen unerlässlich, von Zeit zu Zeit die Tragbalkenketten, insbesondere die Kettengelenke sowie Laufrollenlagerung zu schmieren. Es ist augenscheinlich, dass eine derartige Schmierung an relativ offenen Stellen zu Verschmutzungen in der Montagegrube führt. Diese Verschmutzungen führen zu einer erhöhten Rutschgefahr für das Montagepersonal einerseits sowie zur Umweltverschmutzung andererseits. Such a cover is known, for example from the applicant going back DE 38 25 718 A1. Specifically, there is a roller shutter-like cover shown, in which the axes of the rollers as an extension of the joint axes of Chain links are formed. The rollers are directly on the joint axes rotatably mounted. The rollers exist as well as the joint axes mainly made of stainless steel, especially stainless steel. In practice, it has now shown that after some operating time between the roller and hinge axis so-called "white rust" forms. To counteract a premature wear caused thereby, It is essential in the conventional constructions, from time to time the stringers chains, in particular the chain joints and roller bearings lubricate. It is evident that such lubrication on relatively open Points leading to contamination in the mounting pit. These pollutions lead to an increased risk of slipping for the assembly staff on the one hand and on the other hand.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Ketten- und Laufrollen-Konstruktion für eine rolladenartige Abdeckung der hier genannten Art zur Verfügung zu stellen, bei der eine nachträgliche Schmierung der Kettengelenke sowie Laufrollenlager entbehrlich ist.The present invention is therefore the object of a chain and Roller construction for a shutter-like cover of the type mentioned here for To provide, in the subsequent lubrication of the chain joints as well Roller bearing is dispensable.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Maßnahmen des Anspruches 1 gelöst, wobei bevorzugte Details der erfindungsgemäßen Konstruktion in den Unteransprüchen beschrieben sind. Hervorzuheben sind in diesem Zusammenhang insbesondere die Maßnahmen nach Anspruch 2, wonach auf jeder Gelenkachse der Kettenglieder jeweils zwischen den beiden Wangen derselben eine Kettenrad-Eingriffshülse drehbar gelagert ist und die Lagerung der vorgenannten Hülsen jeweils über eine selbstschmierend ausgebildete Gleitlagerbuchse erfolgt. Durch derart gelagerte Kettenrad-Eingriffshülsen ist der Verschleiß durch den Eingriff der Kettenräder auf ein Minimum reduziert. Auch wird dadurch die Leichtgängigkeit der Abdeckung bei der Bewegung desselben aus der Abdeckstellung in eine Ruhestellung und umgekehrt gefördert, mit der Folge, dass auch der Energieverbrauch für die vorgenannte Bewegung der Abdeckung entsprechend reduziert ist.This object is achieved by the characterizing measures of Claim 1, wherein preferred details of the construction according to the invention in are described in the dependent claims. To emphasize are in this context in particular the measures according to claim 2, according to which on each hinge axis of Chain links each between the two cheeks thereof a sprocket engagement sleeve is rotatably mounted and the storage of the aforementioned sleeves each via a self-lubricating plain bearing bush takes place. By such mounted sprocket engagement sleeves is the wear due to the engagement of Sprockets reduced to a minimum. Also, this is the ease of the Cover during the movement thereof from the covering position to a rest position and conversely promoted, with the consequence that also the energy consumption for the the aforementioned movement of the cover is reduced accordingly.
Durch die erfindungsgemäß vorgesehenen Gleitlagerbuchsen wird also eine Reibpaarung zwischen gleichartigen Materialien, wie zum Beispiel Stahl, vermieden. Dadurch kann auch nicht mehr der eingangs erwähnte Weißrost entstehen. Durch die Ausbildung der Gleitlagerbuchsen als selbstschmierende Lagerbuchsen ist eine nachträgliche Schmierung in Betrieb der Abdeckung nicht mehr erforderlich. Die vorgenannte Verschmutzungsgefahr wird vermieden.By inventively provided plain bearing bushings is thus a Friction pairing between similar materials, such as steel avoided. As a result, the white rust mentioned in the introduction can no longer arise. By the formation of the plain bearing bushes as self-lubricating bearing bushes is a Subsequent lubrication during operation of the cover is no longer required. The The aforementioned risk of contamination is avoided.
Vorzugsweise weisen die Gleitlagerbuchsen an wenigstens einer Stirnseite einen umlaufenden Kragen, d.h. radial nach außen vorstehenden und sich über den Umfang erstreckenden Vorsprung. Durch diesen Kragen kann auch stirnseitig eine Reibpaarung zwischen gleichen Materialien vermieden werden, d.h. zum Beispiel zwischen Laufrolle einerseits und der zugewandten Wange eines Kettengliedes andererseits. Um auch an der gegenüberliegenden Stirnseite der Laufrolle eine solche Reibpaarung zu vermeiden, kann auch an dieser die Gleitlagerbuchse mit einem umlaufenden Kragen versehen sein. Um eine solche Gleitbuchse jedoch montieren zu können, ist sie vorzugsweise in zwei Teile unterteilt, wobei jede Buchsenhälfte an einer der beiden Stirnseiten einen umlaufenden Kragen aufweist, so dass die Buchsenhälften jeweils derart in eine zugeordnete Lagerbohrung der Laufrolle einsetzbar sind, dass an jeder Stirnseite der Lagerbohrung der umlaufende Kragen zur Anlage kommt.Preferably, the plain bearing bushes have at least one end face circumferential collar, i. projecting radially outward and over the circumference extending projection. Through this collar can also frontally a friction pairing be avoided between the same materials, i. for example between roller on the one hand and the facing cheek of a chain link on the other. Too too on the opposite end face of the roller to such a friction pairing avoid, can also at this the plain bearing bush with a circumferential collar be provided. To be able to assemble such a sliding bush, however, it is preferably divided into two parts, each half socket on one of the two End faces has a circumferential collar, so that the socket halves respectively can be used in such an assigned bearing bore of the roller that at each Face of the bearing bore of the circumferential collar comes to rest.
In gleicher Weise kann auch in bezug auf die Kettenrad-Eingriffshülsen verfahren werden.In the same way can also proceed with respect to the sprocket engagement sleeves become.
Eine etwas einfachere Lösung, um auch stirnseitig eine Reibpaarung zwischen gleichartigen Metallen zu vermeiden, besteht darin, die Gleitlagerbuchsen so lang auszubilden und innerhalb der zugeordneten Lagerbohrungen einzusetzen, dass sie jeweils stirnseitig über die Laufrolle und/oder Kettenrad-Eingriffshülse geringfügig vorstehen.A slightly simpler solution to frontally a friction between To avoid similar metals, is the plain bearing bushes so long form and deploy within the associated bearing bores that they each frontally over the roller and / or sprocket engagement sleeve slightly protrude.
Die Gleitlagerbuchsen bestehen vorzugsweise aus einem Sintermaterial mit Schmiermittelaufnahmetaschen. Sie werden vor der Montage mit Schmiermittel getränkt. Als Schmiermittel kommen sowohl flüssige als auch feste Schmiermittel, wie zum Beispiel Graphit, in Frage.The plain bearing bushes are preferably made of a sintered material Lubricant receiving bags. They are lubricated before assembly soaked. Lubricants include both liquid and solid lubricants, such as graphite, in question.
Die Gleitlagerbuchsen werden innerhalb einer zugeordneten Lagerbohrung von Laufrolle bzw. Ketten-Eingriffshülse eingepresst, eingeschrumpft oder auch eingeklebt.The plain bearing bushes are within an associated bearing bore of Roller or chain-engaging sleeve pressed, shrunk or glued.
Nachstehend wird ein Ausführungsbeispiel einer erfindungsgemäßen Ketten-/Laufrollen-Konstruktion anhand der beigefügten Zeichnung erläutert. Diese zeigt in:
- Figur 1
- das Ende eines Tragbalkens mit an der Unterseite angeordneten Kettenglied samt stirnseitig vorstehender Laufrolle in Vorderansicht; und
- Figur 2
- die Anordnung gemäß Figur 1 in Stirnseitenansicht.
- FIG. 1
- the end of a support beam with arranged on the underside of the chain link together with frontally projecting roller in front view; and
- FIG. 2
- the arrangement of Figure 1 in front view.
Die Figuren 1 und 2 zeigen nur einen Teil einer rolladenartigen Abdeckung, nämlich
einen Tragbalken 10, dessen stirnseitige Enden auf am Grubenrand angeordneten und
hier nicht näher dargestellten Laufschienen abgestützt ist. Zu diesem Zweck ist an der
Unterseite eines jeden Tragbalkens an den beiden Enden desselben ein Kettenglied 11
befestigt, wobei die Befestigung und Dimensionierung der Kettenglieder so ist, dass
die durch die Kettenglieder gebildeten Gelenke 12 jeweils im Bereich eines Spaltes
zwischen benachbarten Tragbalken 10 angeordnet sind. Diese Gelenke liegen in der
Gelenkstellung der Abdeckung jeweils am unteren Spaltende, sowie dies Figur 2
erkennen lässt.Figures 1 and 2 show only a part of a shutter-like cover, namely
a
Konkret erfolgt die endseitige Abstützung der Tragbalken 10 auf den hier nicht näher
dargestellten Laufschienen über Laufrollen 13, deren Achsen als Verlängerung der
Gelenkachsen 14 der einzelnen Kettenglieder 11 ausgebildet sind.Specifically, the end-side support of the supporting
Um eine Nachschmierung der Laufrollen zu vermeiden, und um die Leichtgängigkeit
der Laufrollen 13 zu erhöhen, sind diese auf den jeweils zugeordneten Gelenkachsen
14 über eine selbstschmierend ausgebildete Gleitlagerbuchse 15 drehbar gelagert.To avoid re-lubrication of the rollers, and to the ease of movement
To increase the
Bei der dargestellten Ausführungsform ist ferner auf jeder Gelenkachse 14 der
Kettenglieder 11 zwischen den beiden Wangen 16 derselben eine Kettenrad-Eingriffshülse
17 drehbar gelagert. Die Lagerung der Kettenrad-Eingriffshülsen 17
erfolgt ebenfalls jeweils über eine selbstschmierend ausgebildete Gleitlagerbuchse 18.
Die vorgenannten Gleitlagerbuchsen 15, 18 sind jeweils innerhalb einer Lagerbohrung
von Laufrolle 13 bzw. Kettenrad-Eingriffshülse 17 eingepreßt, eingeschrumpft oder
auch eingeklebt.In the illustrated embodiment is further on each
In Figur 2 ist zur besseren Übersicht die der rechten Gelenkachse 14 zugeordnete
Laufrolle nicht dargestellt. Grundsätzlich ist es jedoch auch denkbar, dass nur jede
zweite Gelenkachse mit einer Laufrolle 13 bestückt ist. Auch ist es denkbar, die
Laufrolle 13 an jedem Kettenglied mittig anzuordnen. Natürlich muß dann auch an
entsprechender Stelle eine stirnseitig nach außen vorstehende Laufrollen-Drehachse
vorgesehen sein. In FIG. 2, the right-
Wie bereits oben ausgeführt, können die Gleitlagerbuchsen 15, 18 jeweils stirnseitig
über die Laufrolle 13 bzw. Kettenrad-Eingriffshülse 17 geringfügig vorstehen, so dass
auch stirnseitig keine Reibpaarung zwischen gleichartigen Materialien, insbesondere
Stahl, auftritt. Alternativ ist es auch denkbar, zwischen Ketten-Eingriffshülse 17 und
den beiden Seitenwangen 16 der Kettenglieder 11 einerseits und der Laufrolle 13 und
der zugewandten Kettenglied-Seitenwange 16 andererseits eine Beilegscheibe aus
selbstschmierendem Material anzuordnen. Eine solche Beilegscheibe sollte dann auch
vorzugsweise zwischen Laufrolle 13 und einem äußeren Bund der Gelenkachse 14
angeordnet sein, so dass auch in diesem Bereich keine Reibpaarung zwischen
gleichartigen Materialien auftritt.As already stated above, the plain bearing
Bezüglich der anderen Lösungen wird auf die eingangs genannten Möglichkeiten hingewiesen.Regarding the other solutions is based on the possibilities mentioned above pointed.
Wie ebenfalls eingangs erwähnt, sind die Gleitlagerbuchsen 15, 18 aus einem
Sintermaterial mit Schmiermittelaufnahmetaschen bzw. -öffnungen hergestellt.
Das Grundmaterial kann Bronze sein.As also mentioned above, the plain bearing
Die Kettenglieder 11 sind an der Unterseite der Tragbalken 10 jeweils angeschraubt.
Die entsprechenden Schraubverbindungen sind in den Figuren 1 und 2 mit der
Bezugsziffer 19 angedeutet.The
Sämtliche in den Anmeldungsunterlagen offenbarten Merkmale werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind. All disclosed in the application documents features are essential to the invention as far as they are individually or in combination with respect to the state new to the technology.
- 1010
- Tragbalkenstringers
- 1111
- Kettengliedlink
- 1212
- (Kettenglied- bzw. Tragbalken-)Gelenk(Chain link or support beam) joint
- 1313
- Laufrollecaster
- 1414
- Gelenkachsejoint axis
- 1515
- Gleitlagerbuchseplain bearing bush
- 1616
- Seitenwange eines KettengliedsSidewall of a chain link
- 1717
- Kettenrad-EingriffshülseSprocket engagement sleeve
- 1818
- Gleitlagerbuchseplain bearing bush
- 1919
- Schraubverbindungscrew
Claims (7)
dadurch gekennzeichnet, dass
die Laufrollen (13) auf den jeweils zugeordneten Achsen (14) über eine selbstschmierend ausgebildete Gleitlagerbuchse (15) drehbar gelagert sind.Roll-like cover for repair or assembly pits with a plurality of parallel support beams, which are supported with their ends on the pit edge rails arranged, wherein the supporting beams (10) connected at the bottom by means of parallel to the rails extending chains and by acting on the chains sprocket Drive from the covering position into a rest position in the pit or a separate receiving space and vice versa are movable, wherein the end-side support of the supporting beams (10) on the rails via rollers (13), whose axes preferably as an extension of the joint axes (14) Chain links (11) are formed,
characterized in that
the rollers (13) on the respectively associated axes (14) via a self-lubricating plain bearing bush (15) are rotatably mounted.
dadurch gekennzeichnet, dass
die Lagerung der Kettenrad-Eingriffshülsen (17) jeweils über eine selbstschmierend ausgebildete Gleitlagerbuchse (18) erfolgt.A cover according to claim 1, wherein a sprocket engagement sleeve (17) is rotatably mounted on each articulation axis (14) of the chain links (11) between the two cheeks (16) thereof,
characterized in that
the bearing of the sprocket engagement sleeves (17) in each case via a self-lubricating plain bearing bush (18).
dadurch gekennzeichnet, dass
die Gleitlagerbuchsen (15, 18) innerhalb einer Lagerbohrung von Laufrolle (13) bzw. Kettenrad-Eingriffshülse (17) eingepresst, eingeschrumpft, eingelötet, eingestemmt oder eingeklebt sind.Cover according to claim 1 or 2,
characterized in that
the plain bearing bushes (15, 18) are pressed, shrunk, soldered, caulked or glued within a bearing bore of the roller (13) or sprocket engagement sleeve (17).
dadurch gekennzeichnet, dass
die Gleitlagerbuchse (15, 18) an wenigstens einer Stirnseite einen umlaufenden Kragen aufweisen. :Cover according to one of claims 1 to 3,
characterized in that
the plain bearing bush (15, 18) have at least one end face a circumferential collar. :
dadurch gekennzeichnet, dass
die Gleitlagerbuchsen (15, 18) stirnseitig über die Laufrolle (13) und/oder Kettenrad-Eingriffshülse (17) geringfügig vorsteht.Cover according to one of claims 1 to 4,
characterized in that
the plain bearing bushes (15, 18) projecting slightly beyond the front side over the roller (13) and / or sprocket engagement sleeve (17).
dadurch gekennzeichnet, dass
die Gleitlagerbuchsen (15, 18) jeweils zweigeteilt sind, wobei jede Buchsenhälfte an einer der beiden Stirnseiten einen umlaufenden Kragen aufweist, so dass die Buchsenhälften jeweils derart in die zugeordnete Lagerbohrung von Laufrolle (13) und/oder Kettenrad-Eingriffshülse (17) einsetzbar sind, dass an jeder Stirnseite der Lagerbohrung ein umlaufender Kragen zur Anlage an Laufrolle und/oder Kettenrad-Eingriffshülse kommt.Cover according to one of claims 1 to 5,
characterized in that
the plain bearing bushes (15, 18) are each divided into two, wherein each bushing half has a circumferential collar on one of the two end faces, so that the bushing halves can each be inserted into the associated bearing bore of the roller (13) and / or sprocket engagement sleeve (17) in that on each end face of the bearing bore there is a circumferential collar for engagement with roller and / or sprocket engagement sleeve.
dadurch gekennzeichnet, dass
die Gleitlagerbuchsen (15, 18) aus einem Sintermaterial mit Schmiermittelaufnahmetaschen, -öffnungen oder -poren hergestellt sind.Cover according to one of claims 1 to 6,
characterized in that
the plain bearing bushes (15, 18) are made of a sintered material with lubricant receiving pockets, openings or pores.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20215830U DE20215830U1 (en) | 2002-10-15 | 2002-10-15 | Roller shutter-like cover for repair or assembly pits |
| DE20215830U | 2002-10-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1411187A2 true EP1411187A2 (en) | 2004-04-21 |
| EP1411187A3 EP1411187A3 (en) | 2004-07-21 |
| EP1411187B1 EP1411187B1 (en) | 2005-12-28 |
Family
ID=7975986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03023537A Expired - Lifetime EP1411187B1 (en) | 2002-10-15 | 2003-10-15 | Roller blind-type cover for servicing pits |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1411187B1 (en) |
| AT (1) | ATE314541T1 (en) |
| DE (2) | DE20215830U1 (en) |
| DK (1) | DK1411187T3 (en) |
| ES (1) | ES2256641T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017112376A1 (en) * | 2017-06-06 | 2018-12-06 | Balzer GmbH & Co. KG | Support beam for acoustic test bench |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3825718A1 (en) | 1988-07-28 | 1990-02-01 | Hans Balzer | SHUTTER-LIKE COVER FOR REPAIR AND ASSEMBLY PITS |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1254138A (en) * | 1968-06-13 | 1971-11-17 | Clip Inn Products Proprietary | Panels and roll-up doors formed from interengaged elongated members |
| EP0115087B2 (en) * | 1983-01-08 | 1994-10-12 | Rhein-Bayern Fahrzeugbau GmbH & Co. KG | Cover for a servicing hole in the form of a sliding shutter |
| DE3408080A1 (en) * | 1984-03-05 | 1985-09-05 | Rhein-Bayern-Fahrzeugbau GmbH & Co KG, 8950 Kaufbeuren | MOUNTING PIT COVER |
| DE8430892U1 (en) * | 1984-10-20 | 1985-01-24 | Balzer, Hans, 8941 Trunkelsberg | SHUTTER COVER FOR MOUNTING PIT |
| DE4101014C2 (en) | 1991-01-15 | 1993-10-07 | Hoermann Kg | Roller device for guiding door leaves |
| DE4224815C2 (en) * | 1992-07-27 | 1996-06-13 | Balzer Heide | Roller shutter-like cover for assembly pits |
-
2002
- 2002-10-15 DE DE20215830U patent/DE20215830U1/en not_active Expired - Lifetime
-
2003
- 2003-10-15 DK DK03023537T patent/DK1411187T3/en active
- 2003-10-15 EP EP03023537A patent/EP1411187B1/en not_active Expired - Lifetime
- 2003-10-15 AT AT03023537T patent/ATE314541T1/en active
- 2003-10-15 DE DE50302042T patent/DE50302042D1/en not_active Expired - Lifetime
- 2003-10-15 ES ES03023537T patent/ES2256641T3/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3825718A1 (en) | 1988-07-28 | 1990-02-01 | Hans Balzer | SHUTTER-LIKE COVER FOR REPAIR AND ASSEMBLY PITS |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1411187B1 (en) | 2005-12-28 |
| EP1411187A3 (en) | 2004-07-21 |
| ATE314541T1 (en) | 2006-01-15 |
| DE50302042D1 (en) | 2006-02-02 |
| DK1411187T3 (en) | 2006-05-15 |
| ES2256641T3 (en) | 2006-07-16 |
| DE20215830U1 (en) | 2002-12-05 |
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