EP1156397B1 - Device for manually exchanging and transporting a heating roll of a reproduction apparatus for example an electrophotographic printer - Google Patents

Device for manually exchanging and transporting a heating roll of a reproduction apparatus for example an electrophotographic printer Download PDF

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Publication number
EP1156397B1
EP1156397B1 EP01110024A EP01110024A EP1156397B1 EP 1156397 B1 EP1156397 B1 EP 1156397B1 EP 01110024 A EP01110024 A EP 01110024A EP 01110024 A EP01110024 A EP 01110024A EP 1156397 B1 EP1156397 B1 EP 1156397B1
Authority
EP
European Patent Office
Prior art keywords
roller
protective container
carrying
container
cutouts
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.)
Expired - Lifetime
Application number
EP01110024A
Other languages
German (de)
French (fr)
Other versions
EP1156397A3 (en
EP1156397A2 (en
Inventor
Andreas Konday
Peter Schmidt
Markus Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP1156397A2 publication Critical patent/EP1156397A2/en
Publication of EP1156397A3 publication Critical patent/EP1156397A3/en
Application granted granted Critical
Publication of EP1156397B1 publication Critical patent/EP1156397B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1639—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the fixing unit
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/18—Cartridge systems

Definitions

  • the invention relates to a device for the manual replacement and transport of a roller of a duplicator or an electrophotographic printer.
  • rollers for passing and conveying a sheet- or tape-shaped, toner image-carrying recording medium, which are rotatably operable in an abutting, axis-parallel arrangement in bearings of the device, mounted with their axial ends, and on the other hand manually operable means for releasing the rollers in their bearings and for separating the rollers in the radial direction for the purpose of removal from and insertion are arranged in their bearings.
  • the EP-0 000 631-B1 discloses a copier of the type mentioned.
  • the fixing / heating roller also has for its replacement and carrying a support means in the form of a single U-shaped handle, which is centrally located between the axial ends of the fixing / heating roller and radially to the center axis of the roller rigidly mounted on a U-shaped support frame ,
  • the U-shaped holding frame has at its free U-leg ends in each case a bearing for one of the axial ends of the roller, in which it is freely rotatable.
  • the holding frame has cube-shaped outside on its free U-leg ends, rigidly connected to the leg ends separate bearing pads, by means of which the fixing / heating roller can be inserted and removed in U-shaped bearings of the fixing unit.
  • Disadvantage of this disclosed embodiment is that when using large, heavy Fixier / Wienwalzen for the purpose of improving the fixing quality, replacement and carrying the fixing / heating roller without jamming and damage by means of a single handle is difficult, and when removing a hot fixing / heating roller and storing in a transport container, this is not feasible without endangering the service person and damaging the roller.
  • the invention is therefore an object of the invention to provide a device of the type mentioned, which does not have these disadvantages, but makes the implementation of a device customer service, especially replacing and transporting hot, heavy and large rolls safer and easier, and also has a simple, compact inexpensive structure.
  • a protective container is provided, which is slipped over a released in the device roller and the support means, preferably attachable.
  • the roller can then be removed, for example, with the attached protective container by means of their projecting from the protective container support means from the bearing points of the device or set in this again.
  • the protective container has a substantially U-shaped cross-sectional profile
  • the inner cavity for receiving a roller has a diameter which is greater than that of an outer diameter of the roller, such that when placed on the support means of the roller protective container no contact between the Protective container and the roller takes place; and the protective container recesses in its container wall for receiving the support means of the roller, whose clear inner width relative to an associated outer diameter of the support means such is predetermined that the protective container with its recesses on the carrying means can be arranged by clamping.
  • a transport container in which the equipped with a roller protective container is manually inserted and removed, wherein means for securing the position of the protective container and the roller are arranged in the transport container.
  • the invention also relates to a duplicating device or an electrophotographic printer according to the invention with an exchangeable roller having at its two axial ends in each case a carrying handle as a support means, by means of which the roller arranged at the bearing points of the device, extending radially from the outer periphery to the center axis of the bearing points , Guidable substantially slot-shaped openings, radially inserted into the bearings and can be removed from them. Because even in this way a safe removal of the roller from the copier without risk of injury is possible.
  • the carrying handles are arranged centrally to the axial center axis at the ends of the roller; and protrude the handles of the roller over the bearing points of the device and a protective container axially out; and on the other hand, at least one of the two carrying handles of the roller means for axially and radially centering and guiding the roller in their bearings in the device; and at least one of the two handles of the roller (1) means (11; 21) for axially and radially centering and guiding a possibly provided protective container (5) on the roller.
  • Fig. 1 to 4 refers to a preferred embodiment of the inventive device for manually replacing and transporting a roller of a duplicating device.
  • the device is in this case provided on a fixing / heating roller of a fixing unit F, wherein the fixing unit is arranged in a duplicating device, not shown, of known type, such as a copier.
  • inventive device can also be used in other devices such as printers, image transfer units, photo printers with fuser units and sheet / belt conveyors or in sheet sorter units with sheet transport units; and that the rolls may be in the form of pressure, image transfer or sheet feed rolls.
  • the fixing unit F shown in FIG. 1 is shown in a position laterally withdrawn from the copying machine on a carriage, not shown, and in an open upper position, with its fixing roller 1 in an upper position pivoted about a pivot axis Z by means of its upper chassis part.
  • the fixing unit F in this case has the fixing roller 1 in the upper chassis part and a pressure roller 2 in the lower chassis part in a pair of rollers for passing and conveying a sheet or tape-shaped recording medium S, which in the closed position of the fixing in an abutting, axis-parallel arrangement their axial ends in bearings L1; L2; L3; L4 of the chassis parts are rotatably operable stored.
  • the fixing roller 1 is provided with carrying means T1, T2, each having conventional pivot bearings, not shown, in which the fixing roller is freely rotatable about its center axis X1. Furthermore, the fixing roller 1 is equipped for the purpose of heating with a centrally mounted in her heating lamp H.
  • the fixing unit F has at the bearing points L1, L2 in the upper chassis part manually operable means 3 for releasing the fixing roller 1 in their bearings for the purpose of removing these from their and / or insertion of these in their bearings.
  • the roller has, as shown in Figures 1 to 4, at its two axial ends in each case a carrying handle T1, T2 as a support means, by means of which the roller arranged at the bearing points L1, L2 of the device, radially from the outer periphery to Center axis Y1 of the bearing points extending, substantially slot-shaped openings feasible, radially inserted into the bearings and can be removed from them.
  • a separate protective container 5 is provided, which can be turned over and slipped over the roller 1 or fixing roller 1 released in the device and its carrying means T1, T2; the roller 1 is removable with the attached protective container 5 by means of their projecting from the protective container support means T1, T2 from the bearing points L1, L2 of the device and / or used in this.
  • the protective container 5 has a substantially U-shaped cross-sectional profile, the inner cavity 1 for receiving the fixing roller 1 has a diameter which is greater than that of an outer diameter of the roller, such that when placed on the support means of the roller protective container no contact between the Protective container or its inner walls and the roller takes place.
  • the protective container 5 as shown in Fig. 1 and 2, recesses 52 in its container wall 53 for receiving the support means T1, T2 of the fixing roller 1, whose clear, inner width relative to an associated outer diameter of the support means is so predetermined, the the protective container with its recesses on the carrying means can be arranged by clamping.
  • the carrying handles T1, T2 of the carrying means are in this case arranged centrically to the axial center axis X1 at the ends of the fixing roller 1; and protrude the handles of the roller on the bearings L1, L2 of the device or the fixing unit F and on the protective container 5 axially.
  • the carrying handles T1, T2 are in this case in the form of substantially angular handles or eyelets.
  • Carrying handles designed as round or oval handles, eyelets or knobs.
  • the protective container 5 has at its two ends or axially arranged side walls 53 each substantially slot-shaped recesses 52 for receiving the arranged at the axial ends of the roller 1
  • the clear inner width of the recesses 52 is adjusted relative to the associated outer diameters of the centering / guiding / holding means 11 such that the protective container 5 with its side walls 53 and recesses 52 can be arranged thereon in a clamping manner.
  • the slot-shaped recesses 52 are arranged for the means 11 on the side walls 53 of the protective container 5 centrally to the axial center axis of the inner cavity 51 of the U-shaped protective container; and have the recesses and the inner cavity 51 for attaching and removing the protective container to / from the fixing roller 1 same radial orientations.
  • the protective container 5 also consists of a resilient, thermally resistant and insulating plastic material.
  • the two handles T1, T2 of the fixing roller 1 means 10 for axially and radially centering, guiding and holding the roller 1 in their bearings L1, L2 in the device or in the fixing unit F; and on the other hand have means 11 for axially and radially centering, guiding and holding the protective container 5 on the roller 1 or on the carrying means T1, T2.
  • the means 10; 11 1 for axial and radial centering, guiding and holding the fixing roller 1 in the bearing points L1, L2 of the fixing unit F and in the recesses 52 of the protective container 5 are summarized and integrally formed on the carrying handles T1, T2 arranged.
  • the means 10, 11 are designed in the form of concentric around the center axis X1 of the fixing roller 1 arranged annular discs, wherein in each case a disc in the region of each axial end of the roller 1 and is arranged spaced therefrom.
  • the two means 10 for centering, guiding and holding the fixing roller 1 in the bearing points L1, L2 are designed as substantially circular annular discs, which in inserting the fixing roller in the bearings L1, L2 in each case an annular circumferential groove (not shown) of the bearings be introduced.
  • the carrying handles T1, T2 are thereby introduced into radially extending slot-shaped recesses or openings of the bearing points, so that they are secured against rotation and only the fixing roller 1 is in its in the carrying means L1, L2 pivot bearings, e.g. can rotate freely in conventional ball bearings.
  • the two means 11 for centering, guiding and holding the protective container 5 are arranged as a rectangular area on the annular discs, which projects radially outwards, away from the bearing points L1, L2 and along the slot-shaped guides of the bearings, so that after releasing the fixing roller 1 in their bearing points L1, L2 by a release / locking lever 30 of the means 3, the protective container 5 by means of its grooves in the recesses 52 of the side walls 53 on this rectangular portion 11 of the two annular discs of the support means T1, T2 can be plugged.
  • a transport container 6 For transporting the fixing roller 1, as shown in Fig. 2 to 4, a transport container 6 is provided with two handles 63 on side walls, in which the fitted with a fixing roller protective container 5 is manually inserted and removed, wherein in the transport container means 61; Position assurance of the protective container and the roller are arranged.
  • arranged at the bottom of the transport container means 62 for securing the position of the fixing roller 1 on the carrying handles T1, T2 of the roller and act against the disposed on a longitudinal wall of the transport container position assurance means 61 of the protective container 5.
  • the means 61, 62 for securing the position of the Roller and the protective container are resiliently formed, wherein the means 62 are designed in the form of a spring clip and the means 61 in the form of retaining bolts on which eyes of the protective container 5 can be plugged.
  • the transport container 6 has a plurality of position securing means 61, 62 for receiving a plurality of rollers 1 with protective container 5.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

To remove the roller (1) the fixing unit is first withdrawn from the copier. A U-shaped protective container (5) designed to accommodate, without coming into contact with, the roller, is then slipped over it. Using the handles (T1,T2) provided on the roller it is then placed in a container (6) provided with handles (63) for transport

Description

Die Erfindung betrifft eine Vorrichtung zum manuellen Austauschen und Transportieren einer Walze eines Vervielfältigungsgerätes bzw. eines elektrophotographischen Druckers.The invention relates to a device for the manual replacement and transport of a roller of a duplicator or an electrophotographic printer.

Es sind Vervielfältigungsgeräte der eingangs genannten Art in Form von Kopierern bekannt, bei denen eine Walze zu Servicezwecken austauschbar und transportierbar angeordnet ist. Hierbei kann die Walze mit Tragemitteln ausgestattet sein, in denen sie frei um ihre Mittenachse drehend angeordnet ist. Das Kopiergerät seinerseits besitzt Walzen zum Hindurchführen und Fördern eines blatt- oder bandförmigen, tonerbildtragenden Aufzeichnungsmediums, die in einer aneinander anliegenden, achsenparallelen Anordnung in Lagerstellen des Gerätes rotierend betreibbar, mit ihren axialen Enden gelagert sind, und andererseits manuell betätigbare Mittel zum Freigeben der Walzen in ihren Lagerstellen sowie zum Trennen der Walzen in radialer Richtung zwecks Entnahme aus und Einsetzen in ihre Lagerstellen angeordnet sind.There are duplicating devices of the type mentioned in the form of copiers known in which a roller is arranged interchangeable and transportable for service purposes. Here, the roller may be equipped with carrying means in which it is arranged to rotate freely about its center axis. The copying machine in turn has rollers for passing and conveying a sheet- or tape-shaped, toner image-carrying recording medium, which are rotatably operable in an abutting, axis-parallel arrangement in bearings of the device, mounted with their axial ends, and on the other hand manually operable means for releasing the rollers in their bearings and for separating the rollers in the radial direction for the purpose of removal from and insertion are arranged in their bearings.

Die EP-0 000 631-B1 offenbart einen Kopierer der eingangs genannten Art. Dort ist eine Fixiereinheit für tonerbildtragende Papierblätter zu Servicezwecken seitlich aus dem Kopierer herausziehbar angeordnet und weist zum Freigeben der Fixier-/Heizwalze Mittel in Form eines manuell betätigbaren Schwenkhebelsystems auf. Die Fixier-/Heizwalze besitzt außerdem zu ihrem Austauschen und Tragen ein Tragemittel in Form eines einzigen U-förmigen Tragegriffes, der mittig zwischen den axialen Enden der Fixier-/Heizwalze und radial zur Mittenachse der Walze beabstandet starr auf einem U-förmigen Halterahmen angeordnet ist. Der U-förmige Halterahmen weist an seinen freien U-Schenkelenden jeweils ein Lager für eines der axialen Enden der Walze auf, in denen diese frei drehbar ist. Zudem weist der Halterahmen außen an seinen freien U-Schenkelenden würfelförmige, starr mit den Schenkelenden verbundene separate Lagerklötze auf, mittels denen die Fixier-/Heizwalze in U-förmige Lagerstellen der Fixiereinheit einsetzbar und entnehmbar ist.The EP-0 000 631-B1 discloses a copier of the type mentioned. There, a fixing unit for toner image-carrying paper sheets for service purposes laterally removed from the copier and has to release the fixing / heating roller means in the form of a manually operable pivot lever system. The fixing / heating roller also has for its replacement and carrying a support means in the form of a single U-shaped handle, which is centrally located between the axial ends of the fixing / heating roller and radially to the center axis of the roller rigidly mounted on a U-shaped support frame , The U-shaped holding frame has at its free U-leg ends in each case a bearing for one of the axial ends of the roller, in which it is freely rotatable. In addition, the holding frame has cube-shaped outside on its free U-leg ends, rigidly connected to the leg ends separate bearing pads, by means of which the fixing / heating roller can be inserted and removed in U-shaped bearings of the fixing unit.

Nachteil dieser offenbarten Ausführungsform ist, dass bei Einsatz großer, schwerer Fixier/Heizwalzen zwecks Verbesserung der Fixierqualität, ein Austauschen und Tragen der Fixier-/Heizwalze ohne ein Verkanten und Beschädigen mittels eines einzelnen Tragegriffes schwierig ist, und beim Entnehmen einer heißen Fixier-/Heizwalze und Ablegen in einen Transportbehälter, dies nicht ohne Gefährdung der Service-Person und Beschädigung der Walze machbar ist.Disadvantage of this disclosed embodiment is that when using large, heavy Fixier / Heizwalzen for the purpose of improving the fixing quality, replacement and carrying the fixing / heating roller without jamming and damage by means of a single handle is difficult, and when removing a hot fixing / heating roller and storing in a transport container, this is not feasible without endangering the service person and damaging the roller.

Weiterhin sind aus dem Stand der Technik bekannt:

  • DE-4443764 A1 offenbart eine photosensitive Walze mit zwei axialen Tragegriffen, an denen die Walze in schlitzförmige Lagerstellen einsetzbar oder daraus entnehmbar ist.
  • JP-A-59111672 zeigt einen 2-fachen Transport- und Schutzbehälter für photoempfindliche Walzen mit Mitteln, die die Lage der Walze und des inneren Behälters sichern.
  • JP-A-06186895 beschreibt einen Transport- und Schutzbehälter mit Tragegriffen. Der Behälter wird über die photoempfindliche Bandeinheit gestülpt, so dass sie mit dem Behälter in das Gerät eingesetzt und positioniert bzw. entnommen werden kann.
  • WO93/15446 offenbart eine Fixierwalzenbehälter, der neben der Fixierwalze auch einen Ölroller und eine Heizlampe enthält.
Furthermore, it is known from the prior art:
  • DE-4443764 A1 discloses a photosensitive roller with two axial carrying handles on which the roller can be inserted into or removed from slot-shaped bearings.
  • JP-A-59111672 shows a 2-fold transport and protective container for photosensitive rollers with means that secure the position of the roller and the inner container.
  • JP-A-06186895 describes a transport and protective container with carrying handles. The container is placed over the photosensitive belt unit so that it can be inserted into the device with the container and positioned or removed.
  • WO93 / 15446 discloses a fuser roll container which, in addition to the fuser roll, also includes an oil roller and a heat lamp.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die diese genannten Nachteile nicht aufweist, sondern die die Durchführung eines Geräte-Kundendienstes, insbesondere ein Austauschen und Transportieren heißer, schwerer und großer Walzen sicherer und leichter macht, und zudem einen einfachen, kompakten kostengünstigen Aufbau aufweist.The invention is therefore an object of the invention to provide a device of the type mentioned, which does not have these disadvantages, but makes the implementation of a device customer service, especially replacing and transporting hot, heavy and large rolls safer and easier, and also has a simple, compact inexpensive structure.

Die Aufgabe wird mit einer Vorrichtung nach Anspruch 1 erfindungsgemäß dadurch gelöst, dass ein Schutzbehälter vorgesehen ist, der über eine im Gerät freigegebene Walze und deren Tragemittel stülpbar, vorzugsweise aufsteckbar ist. Die Walze kann dann beispielsweise mit dem aufgesteckten Schutzbehälter mittels ihrer aus dem Schutzbehälter herausragenden Tragemittel aus den Lagerstellen des Gerätes entnommen bzw. in diese wieder gesetzt werden.The object is achieved with a device according to claim 1 according to the invention in that a protective container is provided, which is slipped over a released in the device roller and the support means, preferably attachable. The roller can then be removed, for example, with the attached protective container by means of their projecting from the protective container support means from the bearing points of the device or set in this again.

In vorteilhafter Weise weist der Schutzbehälter ein im wesentlichen U-förmiges Querschnittsprofil auf, dessen Innenhohlraum zur Aufnahme einer Walze einen Durchmesser hat, der größer als der eines Außendurchmessers der Walze ist, derart, dass bei auf die Tragemittel der Walze aufgestecktem Schutzbehälter keine Berührung zwischen dem Schutzbehälter und der Walze stattfindet; und weist der Schutzbehälter Freisparungen in seiner Behälterwand zur Aufnahme der Tragemittel der Walze auf, deren lichte, innere Weite gegenüber einem zugeordneten Außendurchmesser der Tragemittel derart vorbestimmt ist, das der Schutzbehälter mit seinen Freisparungen auf den Tragemitteln klemmend anordenbar ist.Advantageously, the protective container has a substantially U-shaped cross-sectional profile, the inner cavity for receiving a roller has a diameter which is greater than that of an outer diameter of the roller, such that when placed on the support means of the roller protective container no contact between the Protective container and the roller takes place; and the protective container recesses in its container wall for receiving the support means of the roller, whose clear inner width relative to an associated outer diameter of the support means such is predetermined that the protective container with its recesses on the carrying means can be arranged by clamping.

Zweckmäßigerweise ist außerdem ein Transportbehälter vorgesehen, in den der mit einer Walze bestückte Schutzbehälter manuell einlegbar und entnehmbar ist, wobei im Transportbehälter Mittel zur Lagesicherung des Schutzbehälters und der Walze angeordnet sind.Conveniently, a transport container is also provided, in which the equipped with a roller protective container is manually inserted and removed, wherein means for securing the position of the protective container and the roller are arranged in the transport container.

Die Erfindung betrifft außerdem ein Vervielfältigungsgerät bzw. einen elektrophotographischen Drucker erfindungsgemäß mit einer austauschbaren Walze, die an ihren beiden axialen Enden jeweils einen Tragegriff als Tragemittel aufweist, mittels denen die Walze in an den Lagerstellen des Gerätes angeordneten, radial vom Außenumfang zur Mittenachse der Lagerstellen verlaufenden, im wesentlichen schlitzförmigen Öffnungen führbar, radial in die Lagerstellen einsetzbar und aus ihnen entnehmbar ist. Denn auch auf diese Weise ist ein sicheres Entnehmen der Walze aus dem Kopierer ohne Verletzungsgefahr möglich.The invention also relates to a duplicating device or an electrophotographic printer according to the invention with an exchangeable roller having at its two axial ends in each case a carrying handle as a support means, by means of which the roller arranged at the bearing points of the device, extending radially from the outer periphery to the center axis of the bearing points , Guidable substantially slot-shaped openings, radially inserted into the bearings and can be removed from them. Because even in this way a safe removal of the roller from the copier without risk of injury is possible.

In vorteilhafter Weise sind einerseits die Tragegriffe zentrisch zur axialen Mittenachse an den Enden der Walze angeordnet; und ragen die Tragegriffe der Walze über die Lagerstellen des Gerätes und über einen Schutzbehälter axial hinaus; und weist andererseits mindestens einer der beiden Tragegriffe der Walze Mittel zum axialen und radialen Zentrieren und Führen der Walze in ihren Lagerstellen im Gerät; und mindestens einer der beiden Tragegriffe der Walze (1) Mittel (11;21) zum axialen und radialen Zentrieren und Führen eines ggf. vorgesehenen Schutzbehälters (5) auf der Walze auf.Advantageously, on the one hand the carrying handles are arranged centrally to the axial center axis at the ends of the roller; and protrude the handles of the roller over the bearing points of the device and a protective container axially out; and on the other hand, at least one of the two carrying handles of the roller means for axially and radially centering and guiding the roller in their bearings in the device; and at least one of the two handles of the roller (1) means (11; 21) for axially and radially centering and guiding a possibly provided protective container (5) on the roller.

Die weiteren Merkmale und Vorteile sind der Beschreibung der in der Zeichnung dargestellten Ausführungsbeispiele der Erfindung sowie den weiteren Unteransprüchen zu entnehmen. Die Zeichnung zeigt in der

Fig. 1
die erfindungsgemäße Vorrichtung als Schutz- und Handhabungsbehälter an einer Fixier-/Heizwalze einer aus einem Vervielfältigungsgerät herausgezogenen und geöffneten Fixiereinheit in einer räumlichen Darstellung,
Fig. 2
die erfindungsgemäße Vorrichtung nach Fig. 1 mit einer aus der Fixiereinheit entnommenen, teilweise in den Schutzbehälter eingeschobenen Fixier/Heizwalze in einer vergrößerten räumlichen Darstellung oberhalb eines Transportbehälters,
Fig. 3
die erfindungsgemäße Vorrichtung nach Fig. 2 mit in den Schutzbehälter eingeschobener Fixier-/Heizwalze oberhalb eines Transportbehälters,
Fig. 4
die erfindungsgemäße Vorrichtung nach Fig. 3 mit in den Transportbehälter eingelegtem, eine Fixier-/Heizwalze enthaltenden Schutzbehälter in einer räumlichen Darstellung von oben.
The other features and advantages are described in the description of the embodiments of the invention shown in the drawings and the other dependent claims. The drawing shows in the
Fig. 1
the device according to the invention as a protective and handling container on a fixing / heating roller of an extracted from a duplicating device and opened fixing unit in a spatial representation,
Fig. 2
1 with a removed from the fixing unit, partially inserted into the protective container fixing / heating roller in an enlarged spatial representation above a transport container,
Fig. 3
2 according to the invention with fixing / heating roller inserted into the protective container above a transport container,
Fig. 4
the inventive device of FIG. 3 with inserted into the transport container, a fixing / heat roller containing protective container in a three-dimensional view from above.

Die folgende Beschreibung nach Fig. 1 bis 4 bezieht sich auf eine bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung zum manuellen Austauschen und Transportieren einer Walze eines Vervielfältigungsgerätes.The following description of Fig. 1 to 4 refers to a preferred embodiment of the inventive device for manually replacing and transporting a roller of a duplicating device.

Die Vorrichtung ist hierbei an einer Fixier-/Heizwalze einer Fixiereinheit F vorgesehen, wobei die Fixiereinheit in einem nicht gezeigten Vervielfältigungsgerät bekannter Art, wie zum Beispiel einem Kopierer angeordnet ist.The device is in this case provided on a fixing / heating roller of a fixing unit F, wherein the fixing unit is arranged in a duplicating device, not shown, of known type, such as a copier.

Für einen auf diesem Fachgebiet tätigen Fachmann ist es dabei selbstverständlich, dass die erfinderische Vorrichtung auch in anderen Geräten, wie in Druckern, Bildtransfereinheiten, Photo-Printern mit Fixiereinheiten und Blatt-/Bandfördereinheiten oder in Blattsortier-Geräten mit Blattfördereinheiten einsetzbar ist; und dass die Walzen in Form von Anpress-, Bild-Transfer- oder Blatt-Förderwalzen ausgebildet sein können.It will be understood by one of ordinary skill in the art that the inventive device can also be used in other devices such as printers, image transfer units, photo printers with fuser units and sheet / belt conveyors or in sheet sorter units with sheet transport units; and that the rolls may be in the form of pressure, image transfer or sheet feed rolls.

Die in Fig. 1 gezeigte Fixiereinheit F ist in einer aus dem Kopiergerät auf einem nicht gezeigten Schlitten bekannter Art seitlich herausgezogenen Position und in einer geöffneten, mit ihrer Fixierwalze 1 in einer mittels ihres oberen Chassisteils um eine Schwenkachse Z geschwenkten oberen Stellung dargestellt,The fixing unit F shown in FIG. 1 is shown in a position laterally withdrawn from the copying machine on a carriage, not shown, and in an open upper position, with its fixing roller 1 in an upper position pivoted about a pivot axis Z by means of its upper chassis part.

Die Fixiereinheit F weist hierbei die Fixierwalze 1 im oberen Chassisteil und eine Anpresswalze 2 im unteren Chassisteil in einer Walzenpaar-Anordnung zum Hindurchführen und Fördern eines blatt- oder bandförmigen Aufzeichnungsmediums S auf, die bei geschlossener Stellung der Fixiereinheit in einer aneinander anliegenden, achsenparallelen Anordnung mit ihren axialen Enden in Lagerstellen L1;L2;L3;L4 der Chassisteile rotierend betreibbar, gelagert sind.The fixing unit F in this case has the fixing roller 1 in the upper chassis part and a pressure roller 2 in the lower chassis part in a pair of rollers for passing and conveying a sheet or tape-shaped recording medium S, which in the closed position of the fixing in an abutting, axis-parallel arrangement their axial ends in bearings L1; L2; L3; L4 of the chassis parts are rotatably operable stored.

Zum Verschwenken des oberen Chassisteils der Fixiereinheit bzw. zum Trennen der Walzen 1;2 in radialer Richtung in die Offenstellung der Fixiereinheit, zwecks Entnahme der Fixierwalze 1 aus ihren und/oder Einsetzen in ihre Lagerstellen L1;L2, sind manuell betätigbare Mittel 4 mit einer Kniehebeleinheit mit Handgriff bzw. mit Betätigungshebel 40 angeordnet.For pivoting the upper chassis part of the fixing unit or for separating the rollers 1, 2 in the radial direction in the open position of the fixing, for the purpose of removing the fixing roller 1 from their and / or insertion into their bearings L1, L2, are manually operable means 4 with a Knee lever unit with handle or with lever 40 arranged.

Die Fixierwalze 1 ist mit Tragemitteln T1;T2 ausgestattet, die jeweils übliche, nicht gezeigte Drehlager aufweisen, in denen die Fixierwalze frei um ihre Mittenachse X1 drehbar gelagert ist. Des weiteren ist die Fixierwalze 1 zwecks ihrer Erwärmung mit einer zentrisch in ihr angebrachten Heizlampe H ausgestattet.The fixing roller 1 is provided with carrying means T1, T2, each having conventional pivot bearings, not shown, in which the fixing roller is freely rotatable about its center axis X1. Furthermore, the fixing roller 1 is equipped for the purpose of heating with a centrally mounted in her heating lamp H.

Weiterhin hat die Fixiereinheit F an den Lagerstellen L1;L2 im oberen Chassisteil manuell betätigbare Mittel 3 zum Freigeben der Fixierwalze 1 in ihren Lagerstellen zwecks Entnahme dieser aus ihren und/oder zum Einsetzen dieser in ihre Lagerstellen.Furthermore, the fixing unit F has at the bearing points L1, L2 in the upper chassis part manually operable means 3 for releasing the fixing roller 1 in their bearings for the purpose of removing these from their and / or insertion of these in their bearings.

Die Walze weist, wie in Fig. 1 bis 4 gezeigt, an ihren beiden axialen Enden jeweils einen Tragegriff T1;T2 als Tragemittel auf, mittels denen die Walze in an den Lagerstellen L1;L2 des Gerätes angeordneten, radial vom Außenumfang zur Mittenachse Y1 der Lagerstellen verlaufenden, im wesentlichen schlitzförmigen Öffnungen führbar, radial in die Lagerstellen einsetzbar und aus ihnen entnehmbar ist.The roller has, as shown in Figures 1 to 4, at its two axial ends in each case a carrying handle T1, T2 as a support means, by means of which the roller arranged at the bearing points L1, L2 of the device, radially from the outer periphery to Center axis Y1 of the bearing points extending, substantially slot-shaped openings feasible, radially inserted into the bearings and can be removed from them.

Weiterhin ist ein separater Schutzbehälter 5 vorgesehen, der über die im Gerät freigegebene Walze 1 bzw. Fixierwalze 1 und deren Tragemittel T1;T2 stülpbar und aufsteckbar ist; die Walze 1 ist mit dem aufgesteckten Schutzbehälter 5 mittels ihrer aus dem Schutzbehälter herausragenden Tragemittel T1;T2 aus den Lagerstellen L1;L2 des Gerätes entnehmbar und/oder in diese einsetzbar.Furthermore, a separate protective container 5 is provided, which can be turned over and slipped over the roller 1 or fixing roller 1 released in the device and its carrying means T1, T2; the roller 1 is removable with the attached protective container 5 by means of their projecting from the protective container support means T1, T2 from the bearing points L1, L2 of the device and / or used in this.

Der Schutzbehälter 5 weist ein im wesentlichen U-förmiges Querschnittsprofil auf, dessen Innenhohlraum 1 zur Aufnahme der Fixierwalze 1 einen Durchmesser hat, der größer als der eines Außendurchmessers der Walze ist, derart, dass bei auf die Tragemittel der Walze aufgestecktem Schutzbehälter keine Berührung zwischen dem Schutzbehälter bzw. deren Innenwände und der Walze stattfindet.The protective container 5 has a substantially U-shaped cross-sectional profile, the inner cavity 1 for receiving the fixing roller 1 has a diameter which is greater than that of an outer diameter of the roller, such that when placed on the support means of the roller protective container no contact between the Protective container or its inner walls and the roller takes place.

Des weiteren weist der Schutzbehälter 5, wie in Fig. 1 und 2 gezeigt, Freisparungen 52 in seiner Behälterwand 53 zur Aufnahme der Tragemittel T1;T2 der Fixierwalze 1 auf, deren lichte, innere Weite gegenüber einem zugeordneten Außendurchmesser der Tragemittel derart vorbestimmt ist, das der Schutzbehälter mit seinen Freisparungen auf den Tragemitteln klemmend anordenbar ist.Furthermore, the protective container 5, as shown in Fig. 1 and 2, recesses 52 in its container wall 53 for receiving the support means T1, T2 of the fixing roller 1, whose clear, inner width relative to an associated outer diameter of the support means is so predetermined, the the protective container with its recesses on the carrying means can be arranged by clamping.

Die Tragegriffe T1;T2 der Tragemittel sind hierbei zentrisch zur axialen Mittenachse X1 an den Enden der Fixierwalze 1 angeordnet; und ragen die Tragegriffe der Walze über die Lagerstellen L1;L2 des Gerätes bzw. der Fixiereinheit F und über den Schutzbehälter 5 axial hinaus. Die Tragegriffe T1;T2 sind hierbei in Form von im wesentlichen eckigen Henkeln bzw. Ösen ausgebildet.The carrying handles T1, T2 of the carrying means are in this case arranged centrically to the axial center axis X1 at the ends of the fixing roller 1; and protrude the handles of the roller on the bearings L1, L2 of the device or the fixing unit F and on the protective container 5 axially. The carrying handles T1, T2 are in this case in the form of substantially angular handles or eyelets.

In einer alternativen, nicht gezeigten erfindungsgemäßen Ausführungsform sind die. Tragegriffe als runde oder ovale Henkel, Ösen oder Knäufe ausgebildet.In an alternative, not shown embodiment of the invention are the. Carrying handles designed as round or oval handles, eyelets or knobs.

Der Schutzbehälter 5 weist an seinen beiden Enden bzw. axial angeordneten Seitenwänden 53 jeweils im wesentlichen schlitzförmige Freisparungen 52 zur Aufnahme von den an den axialen Enden der Walze 1 angeordnetenThe protective container 5 has at its two ends or axially arranged side walls 53 each substantially slot-shaped recesses 52 for receiving the arranged at the axial ends of the roller 1

Zentrier- /Führungs-/Halte- Mitteln 11 der Tragegriffen T1;T2 auf. Die lichte innere Weite der Freisparungen 52 ist gegenüber den zugeordneten Außendurchmessern der Zentrier/Führungs-/Halte-Mittel 11 derart angepasst, das der Schutzbehälter 5 mit seinen Seitenwänden 53 bzw. Freisparungen 52 darauf klemmend anordenbar ist.Centering / guiding / holding means 11 of the handles T1, T2 on. The clear inner width of the recesses 52 is adjusted relative to the associated outer diameters of the centering / guiding / holding means 11 such that the protective container 5 with its side walls 53 and recesses 52 can be arranged thereon in a clamping manner.

Hierbei sind die schlitzförmigen Freisparungen 52 für die Mittel 11 an den Seitenwänden 53 des Schutzbehälters 5 zentrisch zur axialen Mittenachse des Innenhohlraumes 51 des U-förmigen Schutzbehälters angeordnet; und weisen die Freisparungen und der Innenhohlraum 51 zum Aufstecken und Entnehmen des Schutzbehälters auf/von die/der Fixierwalze 1 gleiche radiale Ausrichtungen auf.Here, the slot-shaped recesses 52 are arranged for the means 11 on the side walls 53 of the protective container 5 centrally to the axial center axis of the inner cavity 51 of the U-shaped protective container; and have the recesses and the inner cavity 51 for attaching and removing the protective container to / from the fixing roller 1 same radial orientations.

Der Schutzbehälter 5 besteht zudem aus einem federelastischen, thermisch beständigen und isolierenden Kunststoffmaterial.The protective container 5 also consists of a resilient, thermally resistant and insulating plastic material.

Wie in Fig. 1 bis 3 dargestellt, weisen einerseits die beiden Tragegriffe T1;T2 der Fixierwalze 1 Mittel 10 zum axialen und radialen Zentrieren, Führen und Halten der Walze 1 in ihren Lagerstellen L1;L2 im Gerät bzw. in der Fixiereinheit F auf; und weisen andererseits Mittel 11 zum axialen und radialen Zentrieren, Führen und Halten des Schutzbehälters 5 auf der Walze 1 bzw. auf den Tragemitteln T1;T2 auf.As shown in Figures 1 to 3, on the one hand the two handles T1, T2 of the fixing roller 1 means 10 for axially and radially centering, guiding and holding the roller 1 in their bearings L1, L2 in the device or in the fixing unit F; and on the other hand have means 11 for axially and radially centering, guiding and holding the protective container 5 on the roller 1 or on the carrying means T1, T2.

Die Mittel 10; 11 1 zum axialen und radialen Zentrieren, Führen und Halten der Fixierwalze 1 in den Lagerstellen L1;L2 der Fixiereinheit F und in den Freisparungen 52 des Schutzbehälters 5 sind dabei zusammengefasst und einstückig ausgebildet an den Tragegriffen T1;T2 angeordnet.The means 10; 11 1 for axial and radial centering, guiding and holding the fixing roller 1 in the bearing points L1, L2 of the fixing unit F and in the recesses 52 of the protective container 5 are summarized and integrally formed on the carrying handles T1, T2 arranged.

Die Mittel 10;11 sind in Form von konzentrisch um die Mittenachse X1 der Fixierwalze 1 angeordnete ringförmige Scheiben ausgeführt, wobei jeweils eine Scheibe im Bereich jeden axialen Endes der Walze 1 und zu diesen beabstandet angeordnet ist.The means 10, 11 are designed in the form of concentric around the center axis X1 of the fixing roller 1 arranged annular discs, wherein in each case a disc in the region of each axial end of the roller 1 and is arranged spaced therefrom.

Die beiden Mittel 10 zum Zentrieren, Führen und Halten der Fixierwalze 1 in den Lagerstellen L1;L2 sind als im wesentlichen kreisrunde Ringscheiben ausgeführt, die beim Einsetzen der Fixierwalze in die Lagerstellen L1;L2 in jeweils eine ringförmig umlaufende Nut (nicht dargestellt) der Lagerstellen eingeführt werden. Die Tragegriffe T1;T2 werden dabei in radial verlaufende schlitzförmige Aussparungen bzw. Öffnungen der Lagerstellen eingeführt, so dass sie gegen ein Verdrehen gesichert sind und nur die Fixierwalze 1 sich in ihren in den Tragemitteln L1;L2 enthaltenen Drehlagern, z.B. in üblichen Kugellagern frei drehen kann.The two means 10 for centering, guiding and holding the fixing roller 1 in the bearing points L1, L2 are designed as substantially circular annular discs, which in inserting the fixing roller in the bearings L1, L2 in each case an annular circumferential groove (not shown) of the bearings be introduced. The carrying handles T1, T2 are thereby introduced into radially extending slot-shaped recesses or openings of the bearing points, so that they are secured against rotation and only the fixing roller 1 is in its in the carrying means L1, L2 pivot bearings, e.g. can rotate freely in conventional ball bearings.

Die beiden Mittel 11 zum Zentrieren, Führen und Halten des Schutzbehälters 5 sind als rechteckiger Bereich an den Ringscheiben angeordnet, der radial nach außen, von den Lagerstellen L1;L2 weg und längs der schlitzförmigen Führungen der Lagerstellen ragt, so dass nach dem Freigeben der Fixierwalze 1 in ihren Lagerstellen L1;L2 durch einen Ent/Verriegelungshebel 30 der Mittel 3, der Schutzbehälter 5 mittels seiner Nuten in den Freisparungen 52 der Seitenwände 53 auf diesen rechteckigen Bereich 11 der beiden Ringscheiben der Tragemittel T1;T2 aufsteckbar ist.The two means 11 for centering, guiding and holding the protective container 5 are arranged as a rectangular area on the annular discs, which projects radially outwards, away from the bearing points L1, L2 and along the slot-shaped guides of the bearings, so that after releasing the fixing roller 1 in their bearing points L1, L2 by a release / locking lever 30 of the means 3, the protective container 5 by means of its grooves in the recesses 52 of the side walls 53 on this rectangular portion 11 of the two annular discs of the support means T1, T2 can be plugged.

Zum Transportieren der Fixierwalze 1 ist, wie in Fig. 2 bis 4 gezeigt, ein Transportbehälter 6 mit zwei Handgriffen 63 an Seitenwänden vorgesehen, in den der mit einer Fixierwalze bestückte Schutzbehälter 5 manuell einlegbar und entnehmbar ist, wobei im Transportbehälter Mittel 61;62 zur Lagesicherung des Schutzbehälters und der Walze angeordnet sind.For transporting the fixing roller 1, as shown in Fig. 2 to 4, a transport container 6 is provided with two handles 63 on side walls, in which the fitted with a fixing roller protective container 5 is manually inserted and removed, wherein in the transport container means 61; Position assurance of the protective container and the roller are arranged.

Wie in Fig. 4 dargestellt, greifen die am Boden des Transportbehälters angeordneten Mittel 62 zur Lagesicherung der Fixierwalze 1 an den Tragegriffen T1;T2 der Walze an und wirken gegen die an einer Längswand des Transportbehälters angeordnete Lagesicherungs-Mittel 61 des Schutzbehälters 5. Die Mittel 61;62 zur Lagesicherung der Walze und des Schutzbehälters sind dabei federelastisch ausgebildet, wobei die Mittel 62 in Form eines Federbügels und die Mittel 61 in Form von Haltebolzen ausgeführt sind, auf denen Ösen des Schutzbehälters 5 aufsteckbar sind.As shown in Fig. 4, arranged at the bottom of the transport container means 62 for securing the position of the fixing roller 1 on the carrying handles T1, T2 of the roller and act against the disposed on a longitudinal wall of the transport container position assurance means 61 of the protective container 5. The means 61, 62 for securing the position of the Roller and the protective container are resiliently formed, wherein the means 62 are designed in the form of a spring clip and the means 61 in the form of retaining bolts on which eyes of the protective container 5 can be plugged.

In einer nicht gezeigten alternativen Ausführungsform weist der Transportbehälter 6 mehrere Lagesicherungsmittel 61;62 zur Aufnahme mehrerer Walzen 1 mit Schutzbehälter 5 auf.In an alternative embodiment, not shown, the transport container 6 has a plurality of position securing means 61, 62 for receiving a plurality of rollers 1 with protective container 5.

Bezugszeichenreference numeral

L1L1
erste Lagerstelle/n für 1.Walze (Fixier-/Heizwalze) in Fixiereinheitfirst bearing point (s) for 1st roller (fixing / heating roller) in fixing unit
L2L2
zweite Lagerstelle/n für 1.Walze (Fixier-/Heizwalze) in FixiereinheitSecond bearing point (s) for 1st roller (fixing / heating roller) in fixing unit
L3L3
erste Lagerstelle/n für 2.Walze (Anpresswalze) in Fixiereinheitfirst bearing point (s) for 2nd roller (pressure roller) in fuser unit
L4L4
zweite Lagerstelle/n für 2.Walze (Anpresswalze) in FixiereinheitSecond bearing point (s) for 2nd roller (pressure roller) in fixing unit
FF
Fixiereinheitfuser
HH
Heizlampe der 1. WalzeHeating lamp of the 1st roller
SS
Aufzeichnungsmedium /Blatt oder Band (Papier, Folie etc.)Recording medium / sheet or tape (paper, foil, etc.)
T1T1
erster Tragegriff/e von Tragemittel der 1.Walzefirst carrying handle / s of carrying means of the 1st roller
T2T2
zweiter Tragegriff/e von Tragemittel der 1.Walzesecond carrying handle / s of carrying means of the 1st roller
X1X1
Mittenachse der 1.WalzeCenter axis of the 1st roller
X2X2
Mittenachse der 2.WalzeCenter axis of 2nd roll
Y1Y1
Mittenachse von Lagerstelle für 1.WalzeCenter axis of bearing point for 1st roll
Y2Y2
Mittenachse von Lagerstelle für 2.WalzeCenter axis of bearing point for 2nd roller
ZZ
Schwenkachse der oberen und unteren Chassisteile der FixiereinheitSwivel axis of the upper and lower chassis parts of the fuser unit
11
erste/obere Walze (Fixier-/Heizwalze) der Fixiereinheitfirst / upper roller (fixing / heating roller) of the fixing unit
22
zweite/untere Walze(Fixier-/Heizwalze) der Fixiereinheitsecond / lower roller (fixing / heating roller) of the fixing unit
33
Mittel zum Freigeben (Ent/Verriegeln) der Walzen in den LagerstellenMeans for releasing (unlocking / locking) the rollers in the bearings
44
Mittel zum radialen Trennen (Aneinanderpressen) der Walzen in der FixiereinheitMeans for radially separating (pressing together) the rollers in the fixing unit
55
Schutzbehälter / Handhabungsbehälter zum Aufstecken auf die WalzenProtective container / handling container for mounting on the rollers
66
Transportbehälter für die Walze/n mit SchutzbehälterTransport container for the roller / s with protective container
1010
Mittel an Tragegriff/en der 1.Walze zum axialen/radialen Zentrieren/Führen der 1. Walze in Lagerstellen von FixiereinheitMeans to carrying handle (s) of the 1st roller for axial / radial centering / guiding the 1st roller into bearings of fixing unit
1111
Mittel an Tragegriff/en der 1.Walze zum axialen/radialen Zentrieren/Führen des SchutzbehältersMeans to carrying handle / s the 1st roll for axial / radial centering / guiding the protective container
3030
Ent/Verriegelungshebel der Freigabemittel an LagerstellenRelease / release lever of the release agent at bearings
4040
Betätigungshebel der Trennmittel/Schwenkmittel für die WalzenOperating lever of the separating means / pivoting means for the rollers
5151
Innenhohlraum des SchutzbehältersInner cavity of the protective container
5252
Freisparung/en in Seitenwand/wände des SchutzbehältersCut-outs in side wall / walls of the protective container
5353
Seitenwand/wände des SchutzbehältersSide wall / walls of the protective container
6161
Lagesicherungsmittel für Schutzbehälter im TransportbehälterPosition securing means for protective containers in the transport container
6262
Lagesicherungsmittel für Walze im TransportbehälterPosition securing means for roller in the transport container
6363
Handgriff/e an TransportbehälterHandle / s to transport container

Claims (10)

  1. Device for manually exchanging and transporting a roller (1) of a duplicating apparatus or an electrographic printer, said roller being equipped with carrying means, and a protective container (5) being provided which can be put over a roller (1) released in the duplicating apparatus and over its carrying means (T1, T2), said roller (1), together with the protective container (5), being taken out of and set into the duplicating apparatus by means of said protective container's carrying means (T1, T2) projecting from the protective container, the protective container (5) having an essentially U-shaped cross-sectional profile, the interior hollow space (51) of said protective container for the accommodation of a roller (1) having a diameter which is greater than the outside diameter of the roller, in such a manner that, with the protective container fitted onto the carrying means of the roller, no contact takes place between the protective container and the roller, and the protective container (5) having cutouts (52) in its container wall (53) for the accommodation of the carrying means (T1, T") of the roller, said cutouts' clear, inside width being pre-specified with respect to an associate diameter of the carrying means in such a manner that the cutouts of the protective container can be snapped onto the carrying means,
    characterized in that
    the roller (1) is a hot fuser/fixer hot roller, and that, for the protective container (5) loaded with a roller (1), a transport container (6) is provided, into which the protective container (5) can be manually placed and in which means (61, 62) are provided for securing the protective container and the roller in place, and that means (62) are in contact with the carrying means (T1, T2) to secure the roller (1) in place and counteract the means (61) for securing the protective container (5) in place, and that the means (61, 62) for securing the roller and the protective container in place are designed in a spring-elastic manner.
  2. Device as in Claim 1,
    characterized in that
    the roller (1) has, on each of its two axial ends, one carrying handle (T1; T2) as the carrying means which can be used to guide the roller in essentially slit-shaped openings, radially set the roller into the bearing sites, and remove said roller from the bearing sites, said openings being provided at the bearing sites (L1; L2) of the apparatus and extending radially from the exterior circumference toward the center axis (Y1) of said bearing sites.
  3. Device as in Claim 2,
    characterized in that
    the carrying handles (T1; T2) are arranged centrically with respect to the axial center axis (X1) on the ends of the roller (1), and that the carrying handles of the roller project, in axial direction, beyond the bearing sites (L1; L2) of the apparatus.
  4. Device as in Claim 3,
    characterized in that
    the two carrying handles (T1; T2) of the roller (1) comprise means (10) for axially and radially centering, guiding and holding the roller in its bearing sites (L1; L2) in the apparatus, that the two carrying handles of the roller (1) comprise means (11) for axially and radially centering, guiding and holding the protective container (5) on the roller, and that the carrying handles (T1; T2) are configured as essentially angular, round or oval handles, lugs or knobs.
  5. Device as in Claim 4,
    characterized in that
    the means (10; 11) for axially and radially centering and guiding the roller (1) in the bearing sites (L1; L2) of the apparatus and in the cutouts (52) of the protective container (5) are combined and designed in one piece on the carrying handles.
  6. Duplicating apparatus or electrophotographic printer with an exchangeable roller in accordance with one of the Claims 2 through 5.
  7. Device as in Claim 5,
    characterized in that
    the protective container (5) has, on each of its two axially arranged lateral walls (53), essentially slit-shaped cutouts (52) for the accommodation of centering/guide means (11) of the carrying handles (T1; T2) which means (11) are located on the axial ends of the roller (1), and that the clear, inside width of the cutouts (52) is adapted to the associate outside diameters of the centering/guide means (11) in such a manner that the lateral walls (53) of the protective container (5) can be snapped onto said cutouts.
  8. Device as in Claim 7,
    characterized in that
    the slit-shaped cutouts (52) for the means (11) are provided on the lateral walls (53) of the protective container (5), centered with respect to the axial center axis of the interior hollow space of the U-shaped protective container, and that the cutouts and the interior hollow space are aligned in the same direction for fitting the protective container onto the roller (1) and for removing the protective container from said roller.
  9. Device as in Claim 1,
    characterized in that
    transport container comprises several position-securing means (61; 62) for the accommodation of several rollers (1) with protective container (5), and that the transport container has two handles (63).
  10. Device as in Claim 1,
    characterized in that
    the protective container (5) consists of a spring-elastic, thermally stable and insulated plastic material.
EP01110024A 2000-05-17 2001-04-26 Device for manually exchanging and transporting a heating roll of a reproduction apparatus for example an electrophotographic printer Expired - Lifetime EP1156397B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10023715A DE10023715A1 (en) 2000-05-17 2000-05-17 Device for the manual exchange and transport of a roller of a duplicating device
DE10023715 2000-05-17

Publications (3)

Publication Number Publication Date
EP1156397A2 EP1156397A2 (en) 2001-11-21
EP1156397A3 EP1156397A3 (en) 2005-01-26
EP1156397B1 true EP1156397B1 (en) 2007-07-25

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EP01110024A Expired - Lifetime EP1156397B1 (en) 2000-05-17 2001-04-26 Device for manually exchanging and transporting a heating roll of a reproduction apparatus for example an electrophotographic printer

Country Status (4)

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US (1) US6490425B2 (en)
EP (1) EP1156397B1 (en)
AT (1) ATE368243T1 (en)
DE (2) DE10023715A1 (en)

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Publication number Priority date Publication date Assignee Title
US6785493B2 (en) 2002-07-11 2004-08-31 Hewlett-Packard Development Company, L.P. User-replaceable fuser cartridge for electrophotographic printing systems
JP5493921B2 (en) * 2010-01-29 2014-05-14 株式会社リコー Roller replacement aid for fixing device

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ATE368243T1 (en) 2007-08-15
EP1156397A3 (en) 2005-01-26
DE10023715A1 (en) 2001-11-22
EP1156397A2 (en) 2001-11-21
DE50112755D1 (en) 2007-09-06
US6490425B2 (en) 2002-12-03
US20020025189A1 (en) 2002-02-28

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