EP0040372B1 - Paper sheet clamp for writing, drawing or similar board - Google Patents

Paper sheet clamp for writing, drawing or similar board Download PDF

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Publication number
EP0040372B1
EP0040372B1 EP81103515A EP81103515A EP0040372B1 EP 0040372 B1 EP0040372 B1 EP 0040372B1 EP 81103515 A EP81103515 A EP 81103515A EP 81103515 A EP81103515 A EP 81103515A EP 0040372 B1 EP0040372 B1 EP 0040372B1
Authority
EP
European Patent Office
Prior art keywords
overlaps
elements
clamping
clamping elements
support base
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
Application number
EP81103515A
Other languages
German (de)
French (fr)
Other versions
EP0040372A1 (en
Inventor
Berthold Schirmuly
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.)
WALTER HEBEL GMBH & CO
Original Assignee
Walter Hebel & Co GmbH
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 Walter Hebel & Co GmbH filed Critical Walter Hebel & Co GmbH
Priority to AT81103515T priority Critical patent/ATE11657T1/en
Publication of EP0040372A1 publication Critical patent/EP0040372A1/en
Application granted granted Critical
Publication of EP0040372B1 publication Critical patent/EP0040372B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L5/00—Drawing boards
    • B43L5/02—Drawing boards having means for clamping sheets of paper thereto

Definitions

  • the invention relates to a sheet clamping device for writing, drawing and similar work documents, namely those in which the sheet is inserted at the corners or at the edge under protective coverings.
  • Such devices are known in a mostly primitive design, with triangular covers, for example, being attached to the four corners of a cardboard base, such as drawing blocks and desk pads, under which the corners of a sheet are pushed. In this way, the sheet is only approximately fixed in its position and the corners are protected from tilting.
  • the invention has for its object to provide a sheet clamping device that is designed so that the displacement of the ruler is possible and that the clamping device is easy to use.
  • the actuating elements of the tensioning elements reach through recesses in the overlaps to the top of the underlay, and that the surface of the underlay is not overhanged by either the actuating elements or the overlaps.
  • tensioning elements are spring-loaded or are designed as springs.
  • clamping elements are magnetic and the coverings are made of magnetic material.
  • the device is characterized in that the actuating elements are designed as keys which are located above the tensioning elements and, in the depressed state, are partially displaceable under the overlap.
  • clamping elements are designed as slides, which are provided with wedge surfaces, which interact with wedge surfaces or cams attached to the work surface.
  • the worktop 2 in the illustration of FIGS. 1 to 3 consists of a thin steel plate which is fixedly connected to the base part 1 and, with its sheet contact surface, lies level with the top of the cover 3.
  • the tensioning element 6 has an actuation button 7 at the free end, which reaches through the cover 3 upwards and releases the tension of the sheet material by pressing it down.
  • the worktop 2 consisting of a thin steel plate, is suitable for experimenting and playing with magnetic symbols and figures.
  • FIGS. 3 and 4 show how two clamping elements 8 can be actuated by means of a key 9.
  • the clamping elements 8, which are also designed as leaf springs, are fastened to the base part 1 by means of the angular edge cover 10.
  • On the clamping elements 8 rests a rod 11 on which a key 9 is slidably arranged.
  • the button 9 By pushing down and moving in the direction of the arrow (as shown in FIG. 4), the button 9 is placed under the edge cover 10, whereby the tensioning elements 8 release the sheet material 4 in the stationary position or enable it to be pushed under the edge cover 10.
  • FIG. 5 shows a slide which is provided with wedge surfaces 13 which, when displaced in the direction of the arrow, depress the clamping elements 8 and in this way release the sheet material 4 in the stationary position or enable it to be pushed under the edge cover 10.
  • the wedge surfaces 13 cooperate with the wedge surfaces attached in the base part 1 and clamp the sheet material 4 directly or indirectly against the cover 10.
  • the clamping elements 8 can be saved because the slide 12 is also the clamping element.

Landscapes

  • Sheet Holders (AREA)
  • Jigs For Machine Tools (AREA)
  • Clamps And Clips (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

1. Device for the clamping of sheets for writing, drawing and similar working support bases, in which overlaps are provided on the support base for parts of the sheets, and also clamping elements, which press the parts of the sheets, which have been pushed underneath the overlap, from below against the underside of the overlap, characterised in that the actuating elements (7, 9) of the clamping elements (6, 8, 12) penetrate through openings in the overlaps (3, 10) to the upper side of the support base (1, 2) and neither the actuating elements (7, 9) nor the overlaps (3, 10) project above the surface of the support base (1, 2).

Description

Die Erfindung betrifft eine Blattgut-Aufspannvorrichtung für Schreib-, Zeichen- und ähnliche Arbeitsunterlagen, und zwar solche, bei denen das Blattgut an den Ecken bzw. am Rand unter schützende Überdeckungen gesteckt wird.The invention relates to a sheet clamping device for writing, drawing and similar work documents, namely those in which the sheet is inserted at the corners or at the edge under protective coverings.

Bekannt sind solche Vorrichtungen in meist primitiver Ausführung, wobei zum Beispiel an den vier Ecken einer Pappunterlage, wie Zeichenblökken und Schreibtischauflagen, dreieckförmige Überdeckungen angebracht sind, unter die die Ecken eines Blattes untergeschoben werden. Das Blatt wird auf diese Weise lediglich in seiner Lage in etwa fixiert, und die Ecken werden vor Verknikken geschützt.Such devices are known in a mostly primitive design, with triangular covers, for example, being attached to the four corners of a cardboard base, such as drawing blocks and desk pads, under which the corners of a sheet are pushed. In this way, the sheet is only approximately fixed in its position and the corners are protected from tilting.

Gemäss DE-C 176 707 ist eine Vorrichtung zum Befestigen von Zeichenpapier auf blockähnlichen Unterlagen bekannt, bei der die Ecken des Zeichenpapieres von über die Zeichenebene vorstehenden Überdeckungen geschützt werden. Die Klemmung erfolgt durch von der Unterseite der Zeichenplatte zu betätigende Zungen aus Federstahl, die das Papier von unten gegen die Überdeckung drücken. Diese Art der Klemmung hat den Nachteil, dass sie umständlich von unten betätigt werden muss und dass die Überdeckungen die Zeichenebene überragen.According to DE-C 176 707 a device for attaching drawing paper to block-like documents is known, in which the corners of the drawing paper are protected from overlaps projecting beyond the drawing plane. The clamping is carried out by spring steel tongues to be operated from the underside of the drawing plate, which press the paper against the overlap from below. This type of clamping has the disadvantage that it has to be operated with difficulty from below and that the overlaps protrude beyond the plane of the drawing.

Der Erfindung liegt die Aufgabe zugrunde, eine Blattgut-Aufspannvorrichtung zu schaffen, die so gestaltet ist, dass das Verschieben des Lineales ungehindert möglich ist und dass die Klemmvorrichtung leicht bedienbar ist.The invention has for its object to provide a sheet clamping device that is designed so that the displacement of the ruler is possible and that the clamping device is easy to use.

Als Lösung dieser Aufgabe wird vorgeschlagen, dass die Betätigungselemente der Spannelemente durch Aussparungen in den Überdeckungen zur Oberseite der Unterlage hindurchgreifen und die Oberfläche der Unterlage weder durch die Betätigungselemente noch durch die Überdeckungen überragt wird.As a solution to this problem, it is proposed that the actuating elements of the tensioning elements reach through recesses in the overlaps to the top of the underlay, and that the surface of the underlay is not overhanged by either the actuating elements or the overlaps.

Eine Ausgestaltungsform ist, dass die Spannelemente federbelastet sind, oder als Federn ausgebildet sind.One embodiment is that the tensioning elements are spring-loaded or are designed as springs.

Eine weitere Version dieser Vorrichtung ist, dass die Spannelemente magnetisch sind und die Überdeckungen aus magnethaftendem Werkstoff bestehen.Another version of this device is that the clamping elements are magnetic and the coverings are made of magnetic material.

Ferner zeichnet sich die Vorrichtung dadurch aus, dass die Betätigungselemente als über den spannelementen liegende im niedergedrückten Zustand teilweise unter die Überdeckung verschiebbare Tasten ausgebildet sind.Furthermore, the device is characterized in that the actuating elements are designed as keys which are located above the tensioning elements and, in the depressed state, are partially displaceable under the overlap.

Eine andere Lösung ist, dass die Spannelemente als Schieber ausgebildet sind, die mit Keilflächen versehen sind, die mit an der Arbeitsunterlage angebrachten Keilflächen oder Nocken zusammenwirken.Another solution is that the clamping elements are designed as slides, which are provided with wedge surfaces, which interact with wedge surfaces or cams attached to the work surface.

Ausführungsbeispiele sind in der nachfolgenden Beschreibung näher erläutert und durch die anliegende Zeichnung veranschaulicht.Exemplary embodiments are explained in more detail in the following description and illustrated by the attached drawing.

Es zeigt:

  • Fig. 1, den Schnitt durch eine erfindungsgemässe Blattgut-Aufspannvorrichtung
  • Fig. 2, eine Draufsicht nach Fig. 1
  • Fig. 3, einen Querschnitt einer als Randspannung ausgebildeten Blattgut-Aufspannvorrichtung, bei der die Betätigung mehrerer Spannelemente mittels einer Taste erfolgt.
  • Fig. 4, einen Längsschnitt nach Fig. 3
  • Fig. 5, einen Längsschnitt einer als Randspannung ausgebildeten Blattgut-Aufspannvorrichtung, bei der die Betätigung mehrerer Spannelemente durch einen mit Keilflächen versehenen Schieber erfolgt.
It shows:
  • Fig. 1, the section through an inventive sheet clamping device
  • 2, a plan view of FIG. 1st
  • 3 shows a cross section of a sheet material clamping device designed as edge tension, in which several clamping elements are actuated by means of a button.
  • 4, a longitudinal section according to FIG. 3rd
  • Fig. 5, a longitudinal section of a sheet material clamping device designed as edge tension, in which the actuation of several clamping elements is carried out by a slide provided with wedge surfaces.

Auf einer Unterlage, die aus einem Bodenteil 1 und einer Arbeitsplatte 2 besteht, ist eine Überdeckung 3 für das Unterschieben des Blattgutes 4 angebracht. Die Arbeitsplatte 2 besteht in der Darstellung der Figuren 1 bis 3 aus einer dünnen Stahfplatte, die mit dem Bodenteil 1 fest verbunden ist und mit ihrer Blattauflagefläche ebenengleich mit der Oberseite der Überdeckung 3 liegt. Durch den Schlitz 5, der zwischen Arbeitsplatte 2 und der Überdeckung 3 belassen ist, kann das Blattgut 4 mit einer Ecke oder einem Rand untergeschoben werden. Das Spannelement 6, das als Blattfeder ausgebildet ist, die zwischen dem Bodenteil 1 und der Arbeitsplatte 2 placiert ist, spannt das Blattgut 4 gegen die Unterseite der Überdeckung 3 fest. Das Spannelement 6 besitzt am freien Ende eine Betätigungstaste 7, die durch die Überdeckung 3 nach oben durchgreift und durch Niederdrücken die Spannung des Blattgutes aufhebt.On a base, which consists of a base part 1 and a worktop 2, an overlap 3 is attached for pushing in the sheet material 4. The worktop 2 in the illustration of FIGS. 1 to 3 consists of a thin steel plate which is fixedly connected to the base part 1 and, with its sheet contact surface, lies level with the top of the cover 3. Through the slot 5, which is left between the worktop 2 and the cover 3, the sheet material 4 can be pushed under with a corner or an edge. The clamping element 6, which is designed as a leaf spring, which is placed between the base part 1 and the worktop 2, clamps the sheet material 4 against the underside of the cover 3. The tensioning element 6 has an actuation button 7 at the free end, which reaches through the cover 3 upwards and releases the tension of the sheet material by pressing it down.

Die aus einer dünnen Stahlplatte bestehende Arbeitsplatte 2, eignet sich zum Experimentieren und Spielen mit magnethaftenden Symbolen und Figuren.The worktop 2, consisting of a thin steel plate, is suitable for experimenting and playing with magnetic symbols and figures.

In den Figuren 3 und 4 ist dargestellt, wie zwei Spannelemente 8 mittels einer Taste 9 betätigt werden können. Die Spannelemente 8, die ebenfalls als Blattfedern ausgebildet sind, sind mittels der winkelförmigen Randüberdeckung 10 auf dem Bodenteil 1 befestigt. Auf den Spannelementen 8 ruht ein Stab 11, auf dem eine Taste 9 verschiebbar angeordnet ist. Durch Niederdrücken und Verschieben in Pfeilrichtung (wie in Fig. 4 dargestellt) setzt sich die Taste 9 unter die Randüberdeckung 10, wodurch die Spannelemente 8 in verharrender Stellung das Blattgut 4 freigeben bzw. dessen Unterschieben unter die Randüberdeckung 10 ermöglichen.FIGS. 3 and 4 show how two clamping elements 8 can be actuated by means of a key 9. The clamping elements 8, which are also designed as leaf springs, are fastened to the base part 1 by means of the angular edge cover 10. On the clamping elements 8 rests a rod 11 on which a key 9 is slidably arranged. By pushing down and moving in the direction of the arrow (as shown in FIG. 4), the button 9 is placed under the edge cover 10, whereby the tensioning elements 8 release the sheet material 4 in the stationary position or enable it to be pushed under the edge cover 10.

In Fig. 5 ist ein Schieber gezeigt, der mit Keilflächen 13 versehen ist, die beim Verschieben in Pfeilrichtung die Spannelemente 8 niederdrücken und auf diese Weise in verharrender Stellung das Blattgut 4 freigeben bzw. dessen Unterschieben unter die Randüberdeckung 10 ermöglichen.5 shows a slide which is provided with wedge surfaces 13 which, when displaced in the direction of the arrow, depress the clamping elements 8 and in this way release the sheet material 4 in the stationary position or enable it to be pushed under the edge cover 10.

Es besteht jedoch auch die Möglichkeit, dass die Keilflächen 13 mit den im Bodenteil 1 angebrachten Keilflächen zusammenwirken und unmittelbar oder mittelbar das Blattgut 4 gegen die Überdeckung 10 festspannen. In diesem Fall können die Spannelemente 8 eingespart werden, weil der Schieber 12 zugleich auch das Spannelement ist.However, there is also the possibility that the wedge surfaces 13 cooperate with the wedge surfaces attached in the base part 1 and clamp the sheet material 4 directly or indirectly against the cover 10. In this case, the clamping elements 8 can be saved because the slide 12 is also the clamping element.

Claims (6)

1. Device for the clamping of sheets for writing, drawing and similar working support bases, in which overlaps are provided on the support base for parts of the sheets, and also clamping elements, which press the parts of the sheets, which have been pushed underneath the overlap, from below against the underside of the overlap, characterised in that the actuating elements (7, 9) of the clamping elements (6, 8, 12) penetrate through openings in the overlaps (3, 10) to the upper side of the support base (1, 2) and neither the actuating elements (7, 9) nor the overlaps (3, 10) project above the surface of the support base (1,2).
2. Device according to Claim 1, characterised in that the clamping elements (6) are spring-loaded or are constructed as springs.
3. Device according to Claim 1, characterised in that the clamping elements (6) are magnetic and the overlaps (3) consist of magnetic material.
4. Device according to one of Claims 1 to 3, characterised in that the actuating elements (7, 9) are constructed as keys (9) which lie over the clamping elements (6, 8, 12), and which are capable of being slid partially beneath the overlap (10) when depressed.
5. Device according to Claim 1, characterised in that the clamping elements (8) are constructed as sliders (12), which are provided with wedge surfaces (13), which co-operate with wedge surface or cams which are arranged on the working support base.
EP81103515A 1980-05-21 1981-05-08 Paper sheet clamp for writing, drawing or similar board Expired EP0040372B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81103515T ATE11657T1 (en) 1980-05-21 1981-05-08 SHEET MATERIAL CLAMPING DEVICE FOR WRITING, DRAWING AND SIMILAR WORK DOCUMENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3019361 1980-05-21
DE3019361A DE3019361C2 (en) 1980-05-21 1980-05-21 Device for stretching sheets

Publications (2)

Publication Number Publication Date
EP0040372A1 EP0040372A1 (en) 1981-11-25
EP0040372B1 true EP0040372B1 (en) 1985-02-06

Family

ID=6102945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103515A Expired EP0040372B1 (en) 1980-05-21 1981-05-08 Paper sheet clamp for writing, drawing or similar board

Country Status (4)

Country Link
EP (1) EP0040372B1 (en)
AT (1) ATE11657T1 (en)
DE (1) DE3019361C2 (en)
IT (1) IT1135738B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU656510B3 (en) * 1994-08-05 1995-02-02 Mike Blaha Mounting board with fastener
DE10012102B4 (en) * 2000-03-13 2006-04-13 Höfner, Bernhard Clipboard for comfortable double-sided labeling of several sheets

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE176707C (en) *
CH118014A (en) * 1926-03-31 1926-12-01 Genossenschaft Unique Base plate for copying on loose sheets
US2060355A (en) * 1935-09-20 1936-11-10 Herbert E Twomley Drawing board
US2139177A (en) * 1937-10-18 1938-12-06 Nat Blank Book Co Combination drawing board and drawing tool
DE701658C (en) * 1938-09-16 1941-01-21 Fritz Schaber Holding or clamping device for loose forms etc. for carbonless devices
FR1430978A (en) * 1965-01-14 1966-03-11 Millet Forestier Drawing-board
DE6600605U (en) * 1968-04-03 1969-01-16 Karl Vogt DRAWING BOARD WITH PAPER FASTENER
DE2018666C3 (en) * 1970-04-18 1980-06-26 Marabuwerke Erwin Martz Gmbh & Co, 7146 Tamm Drawing board
DE2203138C3 (en) * 1972-01-24 1980-01-31 Walter Hebel Clamping device for clamping sheet, film or plate-shaped objects

Also Published As

Publication number Publication date
ATE11657T1 (en) 1985-02-15
EP0040372A1 (en) 1981-11-25
DE3019361C2 (en) 1983-04-07
IT1135738B (en) 1986-08-27
IT8121221A0 (en) 1981-04-16
DE3019361A1 (en) 1981-11-26

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