DE3431235A1 - Paper-supply cartridge for typewriters or printing machines - Google Patents
Paper-supply cartridge for typewriters or printing machinesInfo
- Publication number
- DE3431235A1 DE3431235A1 DE19843431235 DE3431235A DE3431235A1 DE 3431235 A1 DE3431235 A1 DE 3431235A1 DE 19843431235 DE19843431235 DE 19843431235 DE 3431235 A DE3431235 A DE 3431235A DE 3431235 A1 DE3431235 A1 DE 3431235A1
- Authority
- DE
- Germany
- Prior art keywords
- paper
- typewriters
- printing machines
- stack
- supply cartridge
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/58—Supply holders for sheets or fan-folded webs, e.g. shelves, tables, scrolls, pile holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
Siemens Aktiengesellschaft Unser Zeichen Berlin und München VPA 83 P 7019Siemens Aktiengesellschaft Our symbol Berlin and Munich VPA 83 P 7019
Die Erfindung betrifft eine Papiervorratskassette für Schreib- oder Druckmaschinen mit selbsttätiger Einzelblattzuführung. The invention relates to a paper supply cassette for typewriters or printing machines with automatic single sheet feed.
Bei Schreib- oder Druckmaschinen mit selbsttätiger Einzelblattzuführung ist es bisher üblich, die einzelnen Blätter stapelweise auf einer ganz ebenen Auflagefläche abzulegen. Das jeweils benötigte oberste Blatt des Papierstapels wird hierbei mittels eines Greiferfingers gegen einen Anschlag geschoben, wodurch sich das Papier in der Mitte aufwölbt, um sich dann nach Rückgang des Greiferfingers wieder auszustrecken und dabei über zwei federnde Halteecken vor dem den Papierstapel mindestens teilweise umgebenden Papierzuführschacht zu springen. Es ist leicht einzusehen, daß bei dieser Art der Papierförderung bei zu starken Reibekräften der einzelnen Blätter des Stapels gegeneinander oder bei zu starker Papiervorspannung der Greiferfinger nur schwer seine volle Wirkung ausüben kann, so daß die erforderliche Aufwölbung des Einzelblattes nicht zustandekommt oder auch der Greiferfinger sich stärker abnutzt.In typewriters or printing machines with automatic single sheet feed, it has been customary to date to use the individual Place the sheets in stacks on a completely flat surface. The top sheet of the The paper stack is pushed against a stop by means of a gripper finger, causing the paper to move bulges in the middle, only to stretch out again after the gripper finger has retreated and over two to jump resilient retaining corners in front of the paper stack at least partially surrounding the paper feed shaft. It it is easy to see that with this type of paper conveyance, if the friction forces of the individual sheets are too strong of the stack against each other or with excessive paper tension on the gripper fingers, it is difficult to achieve its full effect can exercise, so that the required bulge of the single sheet does not come about, or the gripper fingers wears out more.
Störungen der Papierzufuhr sind in solchen Fällen erfahrungsgemäß unvermeidlich.Experience has shown that faults in the paper feed are unavoidable in such cases.
Der Erfindung liegt die Aufgabe zugrunde, die geschilderten Probleme auf einfache Weise zu umgehen.The invention is based on the object of circumventing the problems outlined in a simple manner.
Die Erfindung besteht darin, daß die Auflagefläche für den Papierstapel in der Papiervorratskassette geknickt 35The invention consists in the fact that the support surface for the stack of paper in the paper supply cassette is creased 35
MM 1 Die / 24.08.1984MM 1 Tue / 08/24/1984
-X- VPA 83 P 7019 DE -X- VPA 83 P 7019 DE
oder gekrümmt ausgebildet ist, derart, daß die Oberfläche des Papierstapels sich dem Greiferfinger entgegenwölbt. or is curved in such a way that the surface of the paper stack arches towards the gripper finger.
Das Wesen der Erfindung wird an Hand der Zeichnung weiter erläutert.The essence of the invention is further explained with reference to the drawing.
Die im gezeichneten Beispiel - zur leichteren Austauschbarkeit - steckbar ausgebildete Papiervorratskassette 1 enthält den durch die Halteecken 2 festgehaltenen Papierstapel 3. Auf dessen Oberfläche liegt geräteseits der Greiferfinger 4, welcher über einen Hebelmechanismus 5 von einem Exzentermotor 6 bewegbar ist. Im dargestellten Beispiel ist somit die Auflagefläche für den Papierstapel 3 unmittelbar durch die Ausbildung der Papiervorratskassette 1 gegeben. Es ist selbstverständlich ebenso gut im Sinne der Erfindung möglich, in einer ebenen Papiervorratskassette eine geknickte oder gekrümmte Auflageplatte anzubringen, wodurch in manchen Fällen eine leichtere Handhabung möglieh wird.The plug-in paper supply cassette 1 in the example shown - for easier interchangeability - contains the paper stack 3 held by the holding corners 2. The gripper fingers lie on the surface of the stack on the device side 4, which can be moved by an eccentric motor 6 via a lever mechanism 5. In the example shown the support surface for the paper stack 3 is thus given directly by the design of the paper supply cassette 1. It is of course also possible in the context of the invention in a flat paper supply cassette to attach a kinked or curved support plate, which in some cases makes it easier to handle will.
Die Wirkungsweise der gezeigten Anordnung wird aus der Zeichnung unmittelbar deutlich. Sobald der Greiferfinger 4 seine Aufwärtsbewegung beginnt, wird die bereits vorhandene Aufwölbung des Papierblattes noch verstärkt, so daß es zufolge seiner Eigenelastizität die Halteekken 2 federnd überragt und bei der folgenden Abwärtsbewegung des Greiferfingers 4 über diese hinweg der Einzugsöffnung für den Papiertransport zugeführt wird. Als besonders vorteilhaft hat sich ein Knickwinkel von etwa 10 Grad erwiesen.The mode of operation of the arrangement shown is immediately clear from the drawing. As soon as the gripper finger 4 its upward movement begins, the already existing bulge of the paper sheet is reinforced, so that, due to its inherent elasticity, it protrudes resiliently over the retaining claws 2 and during the subsequent downward movement of the gripper finger 4 is fed over this to the feed opening for the paper transport. as A kink angle of about 10 degrees has proven particularly advantageous.
1 Patentanspruch
'' /1 claim
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Leerseite -Blank page -
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0318983A AT379109B (en) | 1983-09-07 | 1983-09-07 | PAPER STOCK FOR TYPEWRITER OR PRINTING MACHINE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3431235A1 true DE3431235A1 (en) | 1985-03-21 |
Family
ID=3546727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19843431235 Withdrawn DE3431235A1 (en) | 1983-09-07 | 1984-08-24 | Paper-supply cartridge for typewriters or printing machines |
Country Status (2)
| Country | Link |
|---|---|
| AT (1) | AT379109B (en) |
| DE (1) | DE3431235A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624478A2 (en) * | 1993-04-30 | 1994-11-17 | Hewlett-Packard Company | Paper trays for computer driven printer |
-
1983
- 1983-09-07 AT AT0318983A patent/AT379109B/en not_active IP Right Cessation
-
1984
- 1984-08-24 DE DE19843431235 patent/DE3431235A1/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624478A2 (en) * | 1993-04-30 | 1994-11-17 | Hewlett-Packard Company | Paper trays for computer driven printer |
| EP0638430A2 (en) * | 1993-04-30 | 1995-02-15 | Hewlett-Packard Company | Paper trays for computer driven printer |
| EP0638430A3 (en) * | 1993-04-30 | 1995-03-08 | Hewlett-Packard Company | Paper trays for computer driven printer |
| EP0624478A3 (en) * | 1993-04-30 | 1995-03-08 | Hewlett Packard Co | Paper trays for computer driven printer. |
| US5454553A (en) * | 1993-04-30 | 1995-10-03 | Hewlett-Packard Company | Paper trays for computer driven printer |
Also Published As
| Publication number | Publication date |
|---|---|
| AT379109B (en) | 1985-11-25 |
| ATA318983A (en) | 1985-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |