EP0042610B1 - Paper sheet clamp - Google Patents

Paper sheet clamp Download PDF

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Publication number
EP0042610B1
EP0042610B1 EP19810104788 EP81104788A EP0042610B1 EP 0042610 B1 EP0042610 B1 EP 0042610B1 EP 19810104788 EP19810104788 EP 19810104788 EP 81104788 A EP81104788 A EP 81104788A EP 0042610 B1 EP0042610 B1 EP 0042610B1
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EP
European Patent Office
Prior art keywords
clamping
sheet
actuating
clamping device
constructed
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
EP19810104788
Other languages
German (de)
French (fr)
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EP0042610A1 (en
Inventor
Ulrich Hebel
Berthold Schirmuly
Walter Hebel
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 and Co
Original Assignee
Walter Hebel GmbH and Co
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
Priority claimed from DE19803023332 external-priority patent/DE3023332C2/en
Priority claimed from DE19803032420 external-priority patent/DE3032420A1/en
Application filed by Walter Hebel GmbH and Co filed Critical Walter Hebel GmbH and Co
Priority to AT81104788T priority Critical patent/ATE11021T1/en
Publication of EP0042610A1 publication Critical patent/EP0042610A1/en
Application granted granted Critical
Publication of EP0042610B1 publication Critical patent/EP0042610B1/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 with at least two clamping rails, which are preferably tiltably and / or foldably attached to a support at right angles to one another, it being of secondary importance whether the clamping effect of the clamping rails is achieved by magnetic or spring force or by wedge surfaces.
  • Such sheet clamping devices are preferably known for clamping the sheet material on drawing and writing pads.
  • DE-C 940 690 shows sheet clamping devices which cover and clamp both the side edges and the lower edge and all the edges of the sheet material.
  • the disadvantage of these solutions is that the clamping rails, if not individually, have to be actuated in connection with brackets or frames on which they are fastened as tensioning straps. To do this, it is necessary to first release a lock (snap lock).
  • the bracket and frame construction requires an excessive height of the underlay, makes it more expensive and makes it bulky.
  • the invention is therefore based on the object of providing a sheet clamping device which does not have the disadvantages described and whose construction allows simple operation from above.
  • the clamping rails are attached to the support in a tiltable or foldable manner, that one of the clamping rails serves simultaneously as an actuating element and that a driver element or several driver elements is arranged between this actuating clamping rail and the additional clamping rail or a plurality of additional clamping rails are, each driver element engages under the coupling rails and couples.
  • driver element is firmly connected to the actuating clamping rail in the form of an extension.
  • the device is characterized in that the driver element is designed as a rocker arm.
  • driver elements are designed as angle levers, which are connected by additionally installed pushing or pulling components.
  • the invention provides an indication that the actuating clamping rail is designed such that it can be tilted over an edge in a manner known per se and thus has a clamping part and a grip part, and that the clamping rail is designed as a flap pivotably mounted on a longitudinal edge.
  • the invention describes that the additional clamping rail designed as a flap is provided with a stop for the sheet edge. If the overall height is sufficient, the actuating element can also be connected to an angle lever, which is actuated by a further driver element, e.g. B. a tie rod, an additional clamping rail on the opposite side of the actuating element.
  • a further driver element e.g. B. a tie rod
  • the actuating element should preferably be tilted over an edge and actuated by pressure from above.
  • the use of magnetic force is preferably also used to achieve the clamping effect because, conversely than with spring force, it achieves the greatest clamping effect when the clamping rail is closed. When you open it, its effect wears off at first. This makes operation considerably easier.
  • the additional clamping rail as a flap, because it does not have to be tilted, but only needs to be raised.
  • An actuating clamping rail 2 is arranged on a base 1 on the left and an additional clamping rail 3 is arranged on the lower edge.
  • the actuating clamping rail 2 can be tilted via a tilting edge 4.
  • a driver attachment 5 it engages under the additional clamping rail 3, which is designed as a flap and is connected to the base 1 in a hinge-like manner at the lower edge 6.
  • Both clamping rails 2 and 3 consist of magnetic material and are attracted by magnets 7 and 7a, which are firmly connected to the base 1.
  • the actuation clamping rail 2 is provided with a button 8 for more convenient actuation. By pressing the button 8 from above, the actuating clamping rail tilts over the tilting edge 4 and thereby raises the additional clamping rail 3 with the driver attachment 5.
  • the auxiliary magnet 7a holds the actuating and additional clamping rails 2 and 3 in the open position, so that the sheet material to be clamped can be pushed with the two edges to the left and below under the clamping rails 2 and 3 without difficulty.
  • the stop 10 limits the pinching depth of the sheet edge.
  • a rocker arm 11 is inserted into the base 1 as a driving element.
  • the seat of the rocking edge 12 of the rocker arm 11 can be set up independently of the rocking edge 4 of the actuating clamping rail 2 in order to achieve the most favorable lifting movement of the rocker arm 11.
  • the rocker arm 11 engages with the nose 13 under the additional clamping rail 3.
  • FIG. 5 shows in a schematic representation how an additional clamping rail arranged parallel to the actuating clamping rail at a sheet length distance can also be actuated by a plurality of driver elements.
  • an angle lever 14 is arranged under the handle part of the actuation clamping rail.
  • a pull rod 15 connects the angle lever 14 to the angle lever 16 on the opposite side.

Description

Die Erfindung betrifft eine Blattklemmvorrichtung mit mindestens zwei Klemmschienen, die vorzugsweise rechtwinklig zueinander auf einer Unterlage kipp- und/oder klappbar befestigt sind, wobei es von untergeordneter Bedeutung ist, ob die Klemmwirkung der Klemmschienen durch Magnet- oder Federkraft oder durch Keilflächen erzielt wird.The invention relates to a sheet clamping device with at least two clamping rails, which are preferably tiltably and / or foldably attached to a support at right angles to one another, it being of secondary importance whether the clamping effect of the clamping rails is achieved by magnetic or spring force or by wedge surfaces.

Derartige Blattklemmvorrichtungen sind vorzugsweise zum Aufspannen des Blattgutes auf Zeichen- und Schreibunterlagen bekannt geworden. So zeigt die DE-C 940 690 Blattklemmvorrichtungen, die sowohl die Seitenränder und den unteren Rand als auch alle Ränder des Blattgutes überdecken und klemmen. Der Nachteil dieser Lösungen besteht jedoch darin, daß die Klemmschienen, wenn nicht einzeln, so doch in Verbindung mit Bügeln oder Rahmen, auf denen sie als Spannbänder befestigt sind, betätigt werden müssen. Dazu ist es notwendig, daß erst eine Sperre (Schnappverschluß) gelöst werden muß. Zudem benötigt die Bügel- und Rahmenkonstruktion eine übertriebene Bauhöhe der Unterlage, verteuert sie und macht sie unhandlich.Such sheet clamping devices are preferably known for clamping the sheet material on drawing and writing pads. For example, DE-C 940 690 shows sheet clamping devices which cover and clamp both the side edges and the lower edge and all the edges of the sheet material. The disadvantage of these solutions, however, is that the clamping rails, if not individually, have to be actuated in connection with brackets or frames on which they are fastened as tensioning straps. To do this, it is necessary to first release a lock (snap lock). In addition, the bracket and frame construction requires an excessive height of the underlay, makes it more expensive and makes it bulky.

Es ist ferner aus der DE-C 149 912 ein Reißbrett mit Bogenspannvorrichtung bekannt, bei dem ein auf das Reißbrett aufgelegter und um die Stirnseiten des Brettes geknickter Zeichenbogen an allen vier Seiten mittels einer auf der Unterseite des Reißbrettes angebrachten Handhabe geklemmt wird. Diese Handhabe besteht aus mehreren Führungsstangen, die in einer drehbaren Scheibe in kurvenförmigen Aussparungen geführt werden.It is also known from DE-C 149 912 a drawing board with a sheet tensioning device, in which a drawing sheet placed on the drawing board and bent around the end faces of the board is clamped on all four sides by means of a handle attached to the underside of the drawing board. This handle consists of several guide rods that are guided in a rotatable disc in curved recesses.

Nachteilig an dieser Lösung ist, daß mit Hilfe einer technisch sehr aufwendigen Konstruktion ein sicheres Klemmen eines Zeichenbogens nur dann möglich ist, wenn der Bogen exakt die Größe des Reißbrettes plus jeweils zweimal Brettdicke aufweist.The disadvantage of this solution is that with the help of a technically very complex construction, a secure clamping of a drawing sheet is only possible if the sheet is exactly the size of the drawing board plus twice the board thickness.

Ein weiterer Nachteil ist, daß die Handhabe unter dem Reißbrett, d. h. für den Benutzer unsichtbar angeordnet sein muß.Another disadvantage is that the handle under the drawing board, i. H. must be arranged invisible to the user.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Blattklemmvorrichtung zu schaffen, die die beschriebenen Nachteile nicht aufweist und deren Konstruktion ein einfaches Bedienen von oben erlaubt.The invention is therefore based on the object of providing a sheet clamping device which does not have the disadvantages described and whose construction allows simple operation from above.

Zu diesem Zweck wird vorgeschlagen, daß die Klemmschienen kipp- oder klappbar auf der Unterlage befestigt sind, daß eine der Klemmschienen gleichzeitig als Betätigungselement dient und daß zwischen dieser Betätigungsklemmschiene und der zusätzlichen Klemmschiene bzw. mehreren zusätzlichen Klemmschienen ein Mitnehmerelement angeordnet ist bzw. mehrere Mitnehmerelemente angeordnet sind, wobei jedes Mitnehmerelement die Klemmschienen untergreift und koppelt.For this purpose, it is proposed that the clamping rails are attached to the support in a tiltable or foldable manner, that one of the clamping rails serves simultaneously as an actuating element and that a driver element or several driver elements is arranged between this actuating clamping rail and the additional clamping rail or a plurality of additional clamping rails are, each driver element engages under the coupling rails and couples.

Eine Ausgestaltung dieser Lösung ist, daß das Mitnehmerelement in Form eines Ansatzes fest mit der Betätigungsklemmschiene verbunden ist.One embodiment of this solution is that the driver element is firmly connected to the actuating clamping rail in the form of an extension.

Ferner zeichnet sich die Vorrichtung dadurch aus, daß das Mitnehmerelement als Kipphebel ausgebildet ist.Furthermore, the device is characterized in that the driver element is designed as a rocker arm.

Ein weiteres Element ist, daß die Mitnehmerelemente als Winkelhebel ausgebildet sind, die durch zusätzlich eingebaute schiebende oder ziehende Bauelemente verbunden sind.Another element is that the driver elements are designed as angle levers, which are connected by additionally installed pushing or pulling components.

Außerdem gibt die Erfindung den Hinweis, daß die Betätigungsklemmschiene in an sich bekannter Weise über eine Kante kippbar ausgebildet ist und somit ein Klemmteil und ein Griffteil aufweist und daß die Klemmschiene als an einer Längskante schwenkbar gelagerte Klappe ausgebildet ist.In addition, the invention provides an indication that the actuating clamping rail is designed such that it can be tilted over an edge in a manner known per se and thus has a clamping part and a grip part, and that the clamping rail is designed as a flap pivotably mounted on a longitudinal edge.

Ferner beschreibt die Erfindung, daß die als Klappe ausgebildete Zusatzklemmschiene mit einem Anschlag für die Blattkante versehen ist. Bei genügender Bauhöhe kann das Betätigungselement auch mit einem Winkelhebel in Verbindung gebracht werden, der durch ein weiteres Mitnehmerelement, z. B. eine Zugstange, eine Zusatzklemmschiene auf der Gegenseite des Betätigungselementes mitbetätigt.Furthermore, the invention describes that the additional clamping rail designed as a flap is provided with a stop for the sheet edge. If the overall height is sufficient, the actuating element can also be connected to an angle lever, which is actuated by a further driver element, e.g. B. a tie rod, an additional clamping rail on the opposite side of the actuating element.

Vorzugsweise dürfte zur Verwirklichung der Erfindung das Betätigungselement über eine Kante gekippt und durch Druck von oben betätigt werden. Vorzugsweise ist auch die Anwendung von Magnetkraft zur Erzielung der Klemmwirkung anzuwenden, weil sie, umgekehrt als bei Federkraft, die größte Klemmwirkung bei geschlossener Klemmschiene erreicht. Beim Öffnen läßt ihre Wirkung zunächst nach. Dadurch erleichtert sich die Betätigung erheblich. Es wird besonders auf das DE-Patent 2 648 064 verwiesen. Nach diesem Patent wird die Klemmschiene durch einen Gegenmagneten offengehalten.To implement the invention, the actuating element should preferably be tilted over an edge and actuated by pressure from above. The use of magnetic force is preferably also used to achieve the clamping effect because, conversely than with spring force, it achieves the greatest clamping effect when the clamping rail is closed. When you open it, its effect wears off at first. This makes operation considerably easier. Reference is made particularly to DE patent 2 648 064. According to this patent, the clamping rail is held open by a counter magnet.

Erfindungsgemäß wird empfohlen, im Gegensatz zur Betätigungsklemmschiene, die Zusatzklemmschiene als Klappe auszubilden, weil diese nicht gekippt, sondern nur angehoben zu werden braucht.According to the invention, it is recommended, in contrast to the actuating clamping rail, to design the additional clamping rail as a flap, because it does not have to be tilted, but only needs to be raised.

Nachfolgend wird die Erfindung in mehreren Ausführungsbeispielen näher beschrieben und durch die anliegende Zeichnung veranschaulicht. Es zeigt

  • Fig. 1 in Ansicht eine Zeichenplatte mit Betätigungs- und Zusatzklemmschiene,
  • Fig. 2 einen Schnitt nach der Linie A-B in vergrößerter Darstellung, die Betätigungsklemmschiene mit Mitnehmeransatz in geöffnetem Zustand,
  • Fig. 3 einen Schnitt nach der Linie A-B in vergrößerter Darstellung mit zwischen Betätigungs-und Zusatzklemmschiene angeordnetem Mitnehmerelement, das als Kipphebel ausgebildet ist, die Betätigungsklemmschiene in geschlossenem Zustand,
  • Fig. 4 einen Schnitt nach der Linie C-D in vergrößerter Darstellung, die Zusatzklemmschiene als Klappe in geöffneter Stellung zeigend,
  • Fig. 5 im Schnitt in schematischer Darstellung, wie eine auf der Gegenseite angeordnete Zusatzklemmschiene durch mehrere Mitnehmerelemente mitbetätigt wird.
The invention is described in more detail below in several exemplary embodiments and illustrated by the attached drawing. It shows
  • 1 is a view of a drawing board with actuating and additional clamping rail,
  • Fi g . 2 shows a section along the line AB in an enlarged view, the actuating clamping rail with driver attachment in the open state,
  • 3 shows a section along the line AB in an enlarged illustration with the driver element arranged between the actuating and additional clamping rails, which is designed as a rocker arm, the actuating clamping rail in the closed state,
  • 4 shows a section along the line CD in an enlarged view, showing the additional clamping rail as a flap in the open position,
  • Fig. 5 in section in a schematic representation, such as an additional clamping rail arranged on the opposite side by several drivers elements is actuated.

Auf einer Unterlage 1 ist links eine Betätigungsklemmschiene 2 und am unteren Rand eine Zusatzklemmschiene 3 angeordnet. Die Betätigungsklemmschiene 2 ist über eine Kippkante 4 kippbar. Mit einem Mitnehmeransatz 5 untergreift sie die Zusatzklemmschiene 3, die als Klappe ausgebildet und an der unteren Kante 6 scharnierartig mit der Unterlage 1 verbunden ist. Beide Klemmschienen 2 und 3 bestehen aus magnethaftendem Werkstoff und werden durch Magnete 7 und 7a, die fest mit der Unterlage 1 verbunden sind, angezogen. Die Betätigungsklemmschiene 2 ist mit einer Taste 8 zur bequemeren Betätigung vorgesehen. Durch Fingerdruck von oben auf die Taste 8 kippt die Betätigungsklemmschiene über die Kippkante 4 und hebt dabei mit dem Mitnehmeransatz 5 die Zusatzklemmschiene 3 mit an. Der Hilfsmagnet 7a hält die Betätigungs- und die Zusatzklemmschiene 2 und 3 in der Offenstellung fest, so daß das festzuklemmende Blattgut ohne Schwierigkeit mit den beiden Rändern links und unten unter die Klemmschiene 2 und 3 geschoben werden kann. Der Anschlag 10 begrenzt die Einklemmtiefe des Blattrandes. Durch Antippen des Klemmteils 2a der Betätigungsklemmschiene 2 schließen sich automatisch beide Klemmschienen.An actuating clamping rail 2 is arranged on a base 1 on the left and an additional clamping rail 3 is arranged on the lower edge. The actuating clamping rail 2 can be tilted via a tilting edge 4. With a driver attachment 5, it engages under the additional clamping rail 3, which is designed as a flap and is connected to the base 1 in a hinge-like manner at the lower edge 6. Both clamping rails 2 and 3 consist of magnetic material and are attracted by magnets 7 and 7a, which are firmly connected to the base 1. The actuation clamping rail 2 is provided with a button 8 for more convenient actuation. By pressing the button 8 from above, the actuating clamping rail tilts over the tilting edge 4 and thereby raises the additional clamping rail 3 with the driver attachment 5. The auxiliary magnet 7a holds the actuating and additional clamping rails 2 and 3 in the open position, so that the sheet material to be clamped can be pushed with the two edges to the left and below under the clamping rails 2 and 3 without difficulty. The stop 10 limits the pinching depth of the sheet edge. By tapping the clamping part 2a of the actuating clamping rail 2, both clamping rails automatically close.

In Fig. 3 ist als Mitnehmerelement ein Kipphebel 11 in die Unterlage 1 versenkt eingesetzt. Der Sitz der Kippkante 12 des Kipphebels 11 kann unabhängig der Kippkante 4 der Betätigungsklemmschiene 2 eingerichtet werden, um so die günstigste Hubbewegung des Kipphebels 11 zu erreichen. Mit der Nase 13 greift der Kipphebel 11 unter die Zusatzklemmschiene 3.In Fig. 3, a rocker arm 11 is inserted into the base 1 as a driving element. The seat of the rocking edge 12 of the rocker arm 11 can be set up independently of the rocking edge 4 of the actuating clamping rail 2 in order to achieve the most favorable lifting movement of the rocker arm 11. The rocker arm 11 engages with the nose 13 under the additional clamping rail 3.

In Fig. 5 ist in schematischer Darstellung gezeigt, wie durch mehrere Mitnehmerelemente eine parallel zur Betätigungsklemmschiene in Blattlängenentfernung angeordnete Zusatzklemmschiene mitbetätigt werden kann. Dazu ist ein Winkelhebel 14 unter dem Griffteil der Betätigungsklemmschiene angeordnet. Eine Zugstange 15 verbindet den Winkelhebel 14 mit dem Winkelhebel 16 auf der gegenüberliegenden Seite.5 shows in a schematic representation how an additional clamping rail arranged parallel to the actuating clamping rail at a sheet length distance can also be actuated by a plurality of driver elements. For this purpose, an angle lever 14 is arranged under the handle part of the actuation clamping rail. A pull rod 15 connects the angle lever 14 to the angle lever 16 on the opposite side.

Die auf der Zeichnung eingesetzten Pfeile erklären die Funktionsweise. Ein Druck auf das Griffteil der Betätigungsklemmschiene 2 bewirkt das Anheben der Klemmschiene 3. Zugleich könnte natürlich eine am unteren Rand angeordnete Klemmschiene in der weiter oben beschriebenen Weise mitbetätigt werden.The arrows on the drawing explain how it works. Pressing the handle part of the actuating clamping rail 2 causes the clamping rail 3 to be lifted. At the same time, of course, a clamping rail arranged at the lower edge could also be actuated in the manner described above.

Claims (6)

1. Sheet clamping device for drawing- and writing- boards with at least two clamping bars which are preferably fastened at right-angles to each other on a base, coupled with each other and jointly actuatable, characterized in that the clamping bars (2, 3) are attached on the base (1) so as to be tiltable or flappable, that one of the clamping bars (2) at the same time serves as actuating element and that between this actuating clamping bar (2) and the additional clamping bar (3) or several additional clamping bars, a carrier element (5, 11) is arranged or a plurality of carrier elements (14, 16) is arranged, each carrier element engaging under and coupling the clamping bars.
2. Sheet clamping device according to claim 1, characterized in that the carrier element is firmly connected, in the form of an extension (5), with the actuating clamping bar (2).
3. Sheet clamping device according to claim 1, characterized in that the carrier element is con- strukted as a rocker arm (11).
4. Sheet clamping device according to claim 1, characterized in that the carrier elements are constructed as bell cranks (14, 16), which are connected by additionally incorporated pushing or pulling components (15).
5. Sheet clamping device according to one of claims 1-4, characterized in that the actuating clamping bar (2) is constructed in a manner known per se so as to be tiltable over an edge and thereby has a clamping part (2a) and a handle part (8) and that the clamping bar (3) is constructed as a flap which is pivotably mounted on a longitudinal edge.
6. Sheet clamping device according to claim 5, characterized in that the additional clamping bar (3), which is constructed as a flap, is provided with a stop (10) for the edge of the sheet.
EP19810104788 1980-06-21 1981-06-22 Paper sheet clamp Expired EP0042610B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104788T ATE11021T1 (en) 1980-06-21 1981-06-22 SHEET CLAMPING DEVICE.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3023332 1980-06-21
DE19803023332 DE3023332C2 (en) 1980-06-21 1980-06-21 Sheet clamping device for characters and writing boards
DE3032420 1980-08-28
DE19803032420 DE3032420A1 (en) 1980-08-28 1980-08-28 Sheet clamping system for marking purposes - has adjacent or opposite tilting edge clamping strips retained by fastening strips on base plate

Publications (2)

Publication Number Publication Date
EP0042610A1 EP0042610A1 (en) 1981-12-30
EP0042610B1 true EP0042610B1 (en) 1985-01-02

Family

ID=25786129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810104788 Expired EP0042610B1 (en) 1980-06-21 1981-06-22 Paper sheet clamp

Country Status (1)

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EP (1) EP0042610B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE149912C (en) *
CH275460A (en) * 1949-10-25 1951-05-31 Graf Werner Device for holding journal and account sheets in carbonless bookkeeping.
DE1611811A1 (en) * 1968-01-02 1970-03-26 Ulrich Hebel Magnetic force clamping device for sheet, foil and plate-shaped clamping material
DE2916227C2 (en) * 1979-04-21 1981-06-11 Rotring-Werke Riepe Kg, 2000 Hamburg Flat drawing board

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Publication number Publication date
EP0042610A1 (en) 1981-12-30

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