DE2119506C3

DE2119506C3 - Sheet feeder for copiers

Info

Publication number: DE2119506C3
Application number: DE19712119506
Authority: DE
Inventors: Kurt 7016 Gerlingen Moser
Original assignee: Develop Apparatebau 7016 Gerlingen GmbH
Current assignee: Develop Apparatebau 7016 Gerlingen GmbH
Priority date: 1971-04-22
Filing date: 1971-04-22
Publication date: 1973-09-20
Also published as: DE2119506B2; DE2119506A1

Description

und8 gebildet sind. Den in der Zeichnung rechts dargestellten Eintrittsenden der Transportbahnen 7 und 8 ist ein Einzugswalzenpaar 9, 1& vorgeschaltet, und zwar ist die Walze 9 an den vorderen Enden zweier um die Achse 11 schwenkbarer zweiarmiger Hebel 12 gelagert und die Walze 10 entsprechend an den vorderen Enden zweier um die Achse 13 schwenkbarer zweiarmiger Hebel 14. Letztere sind direkt an nm eine ortsfeste Achse 15 schwenkbaren Bedienungsteilen 16 angelenkt, an denen auch die Hebel 14 über Koppeln 17 angelenkt sind. Dabei sind die an d-jn Bedienungsteilen 16 vorgesehenen Gelenke 18 und 19 so angeordnet, daß durch Umlegen der Bedienungsteile 16 wie aus der Zeichnung ersichtlich, die Einzugswalzen 9, 10 durch entsprechendes Verschwenken der Hebel 12, 14 aus der in F i g. 1 dargestellten Lag^ in die Lape nach F i g. 2 gebracht werden können. Insoweit entspricht die Vorrichtung noch völlig dem Gegenstand der bereits erwähnten deutschen Patentschrift 1 102 558. aoand8 are formed. The inlet ends of the transport tracks 7 and 8 shown on the right in the drawing are preceded by a pair of intake rollers 9, 1 &, namely the roller 9 is mounted on the front ends of two two-armed levers 12 pivotable about the axis 11 and the roller 10 is mounted correspondingly on the front ends of two pivotable about the axis 13 two-armed lever 14. the latter are articulated a fixed axis 15 pivotable operating portions 16 directly nm, at which the lever 14 via coupling are hinged 17th The joints 18 and 19 provided on the operating parts 16 are arranged in such a way that by turning over the operating parts 16, as can be seen from the drawing, the feed rollers 9, 10 are removed from the position shown in FIG. 1 depicted lag ^ in the lape according to F i g. 2 can be brought. In this respect, the device still corresponds completely to the subject matter of the German patent 1 102 558 mentioned above

Neu hinzugekommen ist ein Verlängerungsstück 20 aus zwei an ihren vorderen Enden miteinander verbundenen, im übriger aber einen der Wandstärke des Leitelementes 5 entsprechenden Raum zwischen sich freilassenden Platten, welche das eintrittsseitige as Ende des Leiteleinentes 5 umgreifen und gegenüber ihm längsverschiebbar sind. Die freien Enden der das Verlängerungsstück 20 bildenden Platten tragen seitliche Zapfen 21, welche in schlitzartige öffnungen von Schwingen 22 eingreifen, mit deren Hilfe die Verschiebung des Verlängerungsstückes 20 'bewerkstelligt werden kann.A new addition is an extension piece 20 made of two together at their front ends connected, but otherwise one of the wall thickness of the guide element 5 corresponding space between free plates, which the inlet side as Grip around the end of Leiteleinentes 5 and are longitudinally displaceable with respect to him. The free ends of the Plates forming the extension piece 20 have lateral pegs 21 which are inserted into slot-like openings engage by rockers 22, with the help of which the displacement of the extension piece 20 'accomplished can be.

Die Schwingen 22 sind ihrerseits über Koppeln 23 an den Bedienungsteilen 16 angelenkt. Die entsprechenden Ge!enke 24, 25 sind dabei so angeordnet, daß die Koppeln 23 beim Verschwenken der Bedienungsteile 16 sich im wesentlichen parallel zur Verschieberichtung des Verlängerungsstückes bewegen. über die Koppeln 23 werden außerdem um eine ortsfeste Achse 26 schwenkbare Hebel 27 betätigt, an denen Federn 28 unter Bildung eines Übertotpunktgesperres so angreifen, daß sie die Hebel 27 in der Stellung nach F i g. 1 im Uhrzeigersinn zu drehen suchen und dadurch die Bedienungsteik 16 und damit auch die Eiuzugswalzen 9, 10 in der gezeichneten Stellung halten. In der Stellung nach F i g. 2 suchen die Federn 28 dagegen die Hebel 27 im Gegenuhrzeigersinne zu drehen und bewirken daher, daß die Einzugswalzen 9, 10 federnd gegeneinandergedrückt bleiben.The rockers 22 are in turn articulated to the operating parts 16 via couplings 23. The corresponding gaps 24, 25 are arranged in such a way that that the coupling 23 when pivoting the operating parts 16 are essentially parallel to the direction of displacement move the extension piece. About the coupling 23 are also a stationary one Axis 26 pivotable lever 27 actuated, on which springs 28 to form an over-center locking mechanism attack so that they the lever 27 in the position according to F i g. 1 clockwise to turn and thereby the control panel 16 and thus also the feed rollers 9, 10 in the drawing Hold position. In the position according to FIG. 2, however, the springs 28 seek the levers 27 in a counterclockwise direction to rotate and therefore cause the feed rollers 9, 10 to be resiliently pressed against one another remain.

In der Stellung nach Fig. 1 kann ein Blatt, z.B. ein belichtetes Negativ, über die Anlegeplatte 30 mühelos in die Blatt-Transportbahn 8 zwischen den Leiterelementen 5 und 6 eingeführt werden, und ebenso kann man gleichzeitig ein zweites Blatt, z. B. eine Aluminiumfolie, zwischen der Oberseite des Verlängerungsstückes 20 und der Einzugswalze 9 in die Blatt-Transportbahn 7 einführen. Sobald das geschehen ist, legt man das Bedienungsteil 16 in die in F i g. 2 gezeigte Lage um, wodurch die Schwinge 22 über die Koppel 23 nach links verschwenkt wird und dabei das Verlängerungsstück 20 hinter die Einzugswalzen 9, 10 zurückzieht, während letztere gleichzeitig durch Verschwenken der Hebel 12, 14 gegeneinandergedrückt werden. Werden nun die Einzugswa!- zen 9, 10 durch nicht gezeichnete Mittel angetrieben, so erfolgt der Weitertransport der Blätter automatisch. Selbstverständlich ist die Erfindung nicht auf das dargestellte Ausführungsbeispiel beschränkt. Insbesondere können die Blatt-Transportbahnen einen anderen Verlauf haben. Wesentlich ist nur, daß sie im Bereich ihrer Eintrittsseite parallel zueinander verlaufen. Im weiteren Verlauf können sie auch voneinander getrennt sein und statt in eine Entwicklerwanne zu anderen Stationen eines Kopiergerätes führen. Ebenso können statt zwei z. B. auch drei Blatt-Transportbahnen vorgesehen sein, in welchem Falle man je ein Verlängerungsstück 20 an jedem der beiden inneren Leitelemente vorzusehen hai, die gleichzeitig durch die Schwingen 22 oder äquivalente Mittel betätigt werden können. Ferner können mit der Vorrichtung, nach dem Vorbild der deutschen Patentschrift 1 ' 02 558, auch Sperrglieder verbunden werden, welche bei voneinander abgehobenen Einzugswalzen 9, 10 in Ausnehmungen der eintrittsseitigen Enden der Leitelemente 4 und 6 eingreifen, wobei ihre Vorderkanten Anschläge für die in Blatt-Transportbahnen 7 und 8 einzuführenden Blätter bilden und so das Ausrichten dieser Blätter erleichtern. Solche Sperrglieder, die in der Zeichnung der Übersichtlichkeit halber weggelassen wurden, können z. B. mit den Hebeln 12 und 14 verbunden sein.In the position according to Fig. 1, a sheet, for example an exposed negative, can be moved over the platen 30 with ease are introduced into the sheet transport path 8 between the conductor elements 5 and 6, and you can also use a second sheet at the same time, e.g. B. an aluminum foil, between the top of the Introduce the extension piece 20 and the feed roller 9 into the sheet transport path 7. As soon as that happen is, one puts the operating part 16 in the in F i g. 2, whereby the rocker arm 22 is pivoted to the left via the coupling 23 and thereby pulls the extension piece 20 behind the feed rollers 9, 10, while the latter simultaneously by pivoting the levers 12, 14 pressed against each other will. If the feed rollers 9, 10 are now driven by means not shown, so the further transport of the sheets takes place automatically. Of course, the invention is not limited to that illustrated embodiment limited. In particular, the sheet transport paths can be different Have course. It is only essential that they run parallel to one another in the area of their entry side. In the further course they can also be separated from one another and instead of in a developer tank lead to other stations of a copier. Likewise, instead of two z. B. also three sheet transport tracks be provided, in which case one extension piece 20 on each of the two inner guide elements provide hai that at the same time can be operated by the rocker 22 or equivalent means. Furthermore, with the Device, based on the example of German patent specification 1 '02 558, also connected locking members which, when the intake rollers 9, 10 are lifted from one another, in the recesses of the entry-side Engage ends of the guide elements 4 and 6, their leading edges stopping for the sheet transport paths 7 and 8 form the sheets to be inserted, making it easier to align these sheets. Such locking members, which have been omitted in the drawing for the sake of clarity, can z. B. be connected to the levers 12 and 14.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 This known insertion device has the claims: Defect that the lie behind the Einzugswaken lie lowing inlet openings of the transport tracks only

1. Device for simultaneous insertion each reasonably conveniently accessible when one sheet into one of two sheet transports - 5 you put the feed rollers much further apart tracks of a copier, which lifts off in the area of their entry side for inserting the copied goods run parallel to each other and would be like that.

are separated from each other by a guide element.

and a single pair of intake rollers with ster 1 822 804 known to axles mounted in a fixed position Upstream rollers that can be lifted off from one another are to be provided with rotatable draw-in rollers, the jacket of which is the outer surfaces of which are not continuously cylindrical over their entire length, but rather are continuously cylindrical, thereby having recesses, which are marked with tongues, that the two sheet-like extension pieces of the two sheet-trans-transport tracks (7, 8) on their entry side port webs separating guide elements hm durchgreivon each other separating Leiielement (5) one at 15 fen. By placing a sheet on top feed rollers (9, 10) raised in front of one another and the other on the underside of the tongue-like between these insertable and in front of the Ge extension pieces can be inserted here press the feed rollers against each other again copied goods in the two transport tracks behind they manage the retractable extension piece with ease. The

(20) is assigned. ~ ao leaves unfavorably stressed because they

2. Apparatus according to claim 1, characterized in that the tongue-like extension pieces to db indicate that the pushes apart for moving the wall thickness of the same and 1 ,, extension piece (20) and for lifting or the areas in between by the moving closer together of the feed rollers (9, 10) tension rollers are pressed together,
The invention is based on the task of deriving the operating part, which consists of an insertion device of the axially fixed axis (15) mentioned at the beginning and two attached to it, which are due to the continuously cylindrical, fixed operating levers ( 16) their feed rollers are also designed for processing

3. Apparatus according to claim 2, characterized in that sensitive copy material is suitable, that the extension piece (20) 30 starting to improve that comfortable insertion on which the two sheet transport tracks (7, 8) of the sheets even if only moderately removed from each other their entry side separating benen feed rollers, and correspondingly small Guide element (5) is guided and the lateral pin requires space while at the same time improving the guidance of the

(21), which is possible in blades designed as rockers.

Actuators (22) engage, which over 35 The solution to this problem consists of the invention coupling (23) on the operating levers (16) was so large that in one device the initially are directed. mentioned type. which separates the two sheet transport paths from one another on their entry side Guide element a pull-in rollers which can be pushed in between these and in front of each other when the infeed rollers are lifted from one another after pressing the feed rollers against each other again behind them retractable extension piece The invention relates to a device that is assigned to

Simultaneous insertion of one sheet each.

of two sheet transport paths of a copier, 45 push the extension piece and to remove the in the area of their entry side run parallel to each other or move closer to each other and are separated by a guide element from a common operating part and from which a single feed roller is derived, which is wired up from a stationary axle pair with rollers that can be lifted from one another and two operating levers attached to them, the outer surfaces of which stand over their entire 50. Furthermore, in a preferred embodiment, the length is continuously cylindrical. For example, the extension piece on which the two From German Patent 1 102 558, a sheet transport path is guided on its entry side by one-like device in connection with a guide element separating the other and have reproductions after the silver side pegs, which in as swing trained salt diffusion process device known- 55 actuating members intervene, which have been coupled via coupling, in which a pair of intake rollers are hinged to the operating levers,
nal-like, superimposed and separated by a sheet transport object of the invention is shown schematically in the drawing, tracks is immediately upstream

this known device, the feed rollers 60 F i g. 1 with raised and in
lifts from one another, the inlet openings F i g. 2 with adjoining intake whales

accessible on the Trarisportbahnen, and then it's zen.

possible, one sheet in each of the two channel-like It is a question of a implementation

To introduce transport tracks. Then you can use the device for the super salt diffusion process Press the draw-in rollers against each other again and with one to take up developer fluid to drive. You then push both sheets, each in its own tray 1, a pair of nip rollers 2,3 ner Tratisportbahn, with the same speed and guide elements 4,5,6, between which one above. underlying channel-like sheet transport tracks 7