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DE19601527A1 - A receiving structure designed as an extruded part for drum scanner components - Google Patents

A receiving structure designed as an extruded part for drum scanner components

Info

Publication number
DE19601527A1
DE19601527A1 DE1996101527 DE19601527A DE19601527A1 DE 19601527 A1 DE19601527 A1 DE 19601527A1 DE 1996101527 DE1996101527 DE 1996101527 DE 19601527 A DE19601527 A DE 19601527A DE 19601527 A1 DE19601527 A1 DE 19601527A1
Authority
DE
Germany
Prior art keywords
drum
machine stand
stand
extruded part
scanner
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Withdrawn
Application number
DE1996101527
Other languages
German (de)
Inventor
Bernd Lassen
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Linotype Hell AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linotype Hell AG filed Critical Linotype Hell AG
Priority to DE29623523U priority Critical patent/DE29623523U1/en
Priority to DE1996101527 priority patent/DE19601527A1/en
Priority to PCT/DE1996/002362 priority patent/WO1997026754A1/en
Publication of DE19601527A1 publication Critical patent/DE19601527A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

The mounting of a vertical rotating-drum scanner, with a fixed or replaceable drum fitted on one side, for scanning direct-view images or transparencies must not only ensure vibration-free rotation of the drum and a uniform lifting motion but must also have a compact design. The invention meets both requirements by using extrusion techniques to produce the machine stand. By virtue of its ribbed shape, the stand gives the equipment flexural and torsional strength, as well as enabling weight savings to be made which facilitate both handling and transport. An additional advantage is the ease of manufacture of the stand.

Description

Trommelscanner werden zur Abtastung und Datenerfassung von Bildvorlagen benutzt. Bei Scannern mit vertikaler Achsrichtung wird eine in Achsrichtung kompakte Bauform angestrebt. Die Funktionseinheiten des Trommelscanners müssen zur Erzielung hoher Abtastqualität von einem möglichst steifen, eigen­ schwingungsfreien Maschinenständer aufgenommen werden. Die vorliegende Erfindung erfüllt diese Aufgabenstellung in besonderer Weise, indem, anders als bei bisher bekannt gewordenen Trommelscannern, die Aufnahmekonstruktion für die Trommelscannerkomponenten als halbrohrähnliches Strangpreßteil ausge­ bildet ist, das zur Erzielung optimaler Steifigkeit gegen Biegung und Torsion geeignete Verrippungen besitzt. Die Anwendung der Strangpreßtechnologie ge­ stattet zusätzlich, die Geräteverkleidung aufwandsparend zu minimieren, da der Maschinenständer mit seiner homogenen Oberfläche Verkleidungsfunktionen übernimmt. Außerdem spart sie in besonderem Maße Konstruktionsgewicht.Drum scanners are used for scanning and data acquisition of image originals used. For scanners with a vertical axis direction, one is in the axis direction compact design sought. The functional units of the drum scanner have to be as rigid as possible to achieve high scanning quality vibration-free machine stands can be added. The present Invention fulfills this task in a special way by, other than in previously known drum scanners, the mounting structure for the drum scanner components as a semi-tubular extrusion is that, to achieve optimal rigidity against bending and torsion has suitable ribs. The application of extrusion technology ge also allows the device cladding to be minimized, as the Machine stand with its homogeneous surface covering functions takes over. It also saves a lot of construction weight.

Im Folgenden wird die Neuerung an Hand der Fig. 1 und 2 näher erläutert.The innovation is explained in more detail below with reference to FIGS. 1 and 2.

Fig. 1 zeigt das Prinzip eines Trommelscanners und die Aufnahme der Scannerkomponenten durch den Maschinenständer. Fig. 1 shows the principle of a drum scanner and the recording of the scanner components by the machine stand.

Fig. 2 demonstriert eine konstruktive Ausführung des Maschinenständers durch Darstellung seines Querschnittes. Fig. 2 demonstrates a structural design of the machine stand by showing its cross section.

Fig. 1 demonstriert das Prinzip eines Trommelscanners mit senkrechter Trommelachse. Eine einseitig eingespannte Abtasttrommel (1) besteht aus Glas oder glasähnlichem Kunststoff, um neben Aufsicht- auch Transparentbildmaterial in Durchsicht abtasten zu können. Die Abtasttrommel ist in einem Metallflansch (2) gefaßt und ruht mit diesem auf dem Motorflansch (5), der eine Einheit mit dem Antriebsmotor (6) bildet. Metallflansch (2) und Motorflansch (5) sind durch nicht sichtbare, innen liegende Spannvorrichtungen gekoppelt, die im Motorflansch (5) untergebracht sind. Während eines Abtastvorgangs rotiert die Trommel (1) und bewegt sich ein Abtastlift (10) mit Innenbeleuchtungsarm (7) und Abtastkopf (8) parallel zur Trommelachse. Dabei wird eine auf der Trommeloberfläche montierte Bildvorlage durch einen Lichtstrahl (9) in Abtastzeilen zerlegt. Der Trommelantrieb besitzt eine Hohlachse, durch die der Innenbeleuchtungsarm (7) geführt werden kann. Um die Anordnung von Trommel mit Antrieb (1), (2), (5), (6) und Abtastlift (10) in Relation zum aufnehmenden Maschinenständer (4) einfach und anschaulich darstellen zu können, ist der Ständer geschnitten gezeigt, wobei die Schnittfläche vereinfacht durch die Schraffur symbolisiert ist und Details der Verrippungen nicht aufweist. Ein Lagerbock (3) fixiert den Trommelantrieb mit der zugehörigen Abtasttrommel. Fig. 1 demonstrates the principle of a drum scanner with a vertical drum axis. A scanning drum ( 1 ) clamped on one side consists of glass or glass-like plastic in order to be able to scan transparent material in addition to supervision. The scanning drum is contained in a metal flange ( 2 ) and rests with it on the motor flange ( 5 ), which forms a unit with the drive motor ( 6 ). Metal flange ( 2 ) and motor flange ( 5 ) are coupled by invisible internal clamping devices, which are housed in the motor flange ( 5 ). During a scanning process, the drum ( 1 ) rotates and a scanning lift ( 10 ) with an interior lighting arm ( 7 ) and scanning head ( 8 ) moves parallel to the drum axis. An image template mounted on the drum surface is broken down into scanning lines by a light beam ( 9 ). The drum drive has a hollow axis through which the interior lighting arm ( 7 ) can be guided. In order to represent the arrangement of drum with drive ( 1 ), ( 2 ), ( 5 ), ( 6 ) and scanning lift ( 10 ) in relation to the receiving machine stand ( 4 ) simply and clearly, the stand is shown in section, the Cut surface is symbolized by the hatching and does not have details of the ribbing. A bearing block ( 3 ) fixes the drum drive with the associated scanning drum.

Fig. 2 beschreibt den inneren Aufbau des Maschinenständers durch Darstellung seines horizontalen Querschnittes. Die Formung des Strangpreßteils mit seinen Verrippungen demonstriert deutlich die Vorteile sowohl hinsichtlich Biege- und Torsionssteifigkeit wie auch die offensichtliche Gewichtsersparnis gegenüber her­ kömmlichen, wesentlich schwereren Rohr- oder Gußkonstruktionen. Fig. 2 describes the internal structure of the machine stand by showing its horizontal cross section. The shaping of the extruded part with its ribs clearly demonstrates the advantages in terms of bending and torsional rigidity as well as the obvious weight savings compared to conventional, much heavier pipe or cast iron constructions.

Claims (2)

1. Basiskonstruktion für Trommelscanner mit einseitig eingespannten Abtast­ trommeln, die der Abtastung von Aufsichts- oder Durchsichtsbildvorlagen dienen, zur Erzielung hinreichender Steifheit des Geräteaufbaus, einer Gewichtsersparnis und einer kompakten Bauform, dadurch gekennzeichnet, daß
  • a) der Maschinenständer (4), der die Scannerkomponenten aufnimmt, als Strangpreßteil aus beispielsweise Aluminium mit einem ergänzenden Lagerbock (3) besteht,
  • b) die halbrohrförmige Gestalt des Maschinenständers (4) mit seinen Verrippungen eine optimale Biege- und Torsionssteifigkeit für den Geräteaufbau bietet, und
  • c) die genutzte Strangpreßtechnologie ein Höchstmaß der erwähnten Steifigkeit bei geringstem Gewicht ermöglicht.
1. Basic construction for drum scanners with unilaterally clamped scanning drums, which are used to scan top or see-through image templates, to achieve sufficient rigidity of the device structure, a weight saving and a compact design, characterized in that
  • a) the machine stand ( 4 ), which receives the scanner components, as an extruded part made of, for example, aluminum with a supplementary bearing block ( 3 ),
  • b) the semi-tubular shape of the machine stand ( 4 ) with its ribs offers optimal bending and torsional rigidity for the construction of the device, and
  • c) the extrusion technology used allows a maximum degree of stiffness mentioned with the lowest weight.
2. Trommelscannerbasiskonstruktion nach Anspruch 1, dadurch gekennzeichnet, daß die Strangpreßtechnologie des Maschinenständers neben dekorativem Design glatte, homogene Oberflächen gestattet, die zum großen Teil einen zusätzlichen Verkleidungsaufwand für das Gerät erübrigen und dekorative Behandlung wie beispielsweise Eloxierungen zulassen.2. Drum scanner base construction according to claim 1, characterized in that the extrusion technology of the machine stand in addition to decorative Design smooth, homogeneous surfaces that allowed a large part additional cladding for the device is unnecessary and decorative Allow treatment such as anodizing.
DE1996101527 1996-01-17 1996-01-17 A receiving structure designed as an extruded part for drum scanner components Withdrawn DE19601527A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE29623523U DE29623523U1 (en) 1996-01-17 1996-01-17 Support structure designed as an extruded part for components of drum scanners
DE1996101527 DE19601527A1 (en) 1996-01-17 1996-01-17 A receiving structure designed as an extruded part for drum scanner components
PCT/DE1996/002362 WO1997026754A1 (en) 1996-01-17 1996-12-10 Mounting, designed as an extrusion, for components of rotating-drum scanners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996101527 DE19601527A1 (en) 1996-01-17 1996-01-17 A receiving structure designed as an extruded part for drum scanner components

Publications (1)

Publication Number Publication Date
DE19601527A1 true DE19601527A1 (en) 1997-07-24

Family

ID=7782981

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996101527 Withdrawn DE19601527A1 (en) 1996-01-17 1996-01-17 A receiving structure designed as an extruded part for drum scanner components

Country Status (2)

Country Link
DE (1) DE19601527A1 (en)
WO (1) WO1997026754A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870504A (en) * 1986-12-02 1989-09-26 Dainippon Screen Mfg. Co., Ltd. Image scanning apparatus including means for selecting one of a plurality of scanning drums to be scanned
US5280364A (en) * 1991-06-27 1994-01-18 Rohm Co., Ltd. Line image sensor and facsimile machine including the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469423A (en) * 1942-08-14 1949-05-10 Western Union Telegraph Co Facsimile apparatus
DE4009241A1 (en) * 1990-03-22 1991-09-26 Fein C & E TRIPOD DRILLING MACHINE
US5515182A (en) * 1992-08-31 1996-05-07 Howtek, Inc. Rotary scanner
GB2280813B (en) * 1993-08-06 1997-07-16 Itek Colour Graphics Ltd Rotary drum scanner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870504A (en) * 1986-12-02 1989-09-26 Dainippon Screen Mfg. Co., Ltd. Image scanning apparatus including means for selecting one of a plurality of scanning drums to be scanned
US5280364A (en) * 1991-06-27 1994-01-18 Rohm Co., Ltd. Line image sensor and facsimile machine including the same

Also Published As

Publication number Publication date
WO1997026754A1 (en) 1997-07-24

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8127 New person/name/address of the applicant

Owner name: HEIDELBERGER DRUCKMASCHINEN AG, 69115 HEIDELBERG,

8139 Disposal/non-payment of the annual fee