EP2418094B1 - Compass - Google Patents

Compass Download PDF

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Publication number
EP2418094B1
EP2418094B1 EP20110176329 EP11176329A EP2418094B1 EP 2418094 B1 EP2418094 B1 EP 2418094B1 EP 20110176329 EP20110176329 EP 20110176329 EP 11176329 A EP11176329 A EP 11176329A EP 2418094 B1 EP2418094 B1 EP 2418094B1
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EP
European Patent Office
Prior art keywords
compass
arms
compass according
twisted
head
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.)
Not-in-force
Application number
EP20110176329
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German (de)
French (fr)
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EP2418094A2 (en
EP2418094A3 (en
Inventor
Florian Hilbig
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.)
Draw Tec GmbH and Co KG
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Draw Tec GmbH and Co KG
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Publication date
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Publication of EP2418094A2 publication Critical patent/EP2418094A2/en
Publication of EP2418094A3 publication Critical patent/EP2418094A3/en
Application granted granted Critical
Publication of EP2418094B1 publication Critical patent/EP2418094B1/en
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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
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/02—Compasses
    • 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
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/16—Features common to compasses, dividers, and callipers
    • B43L9/22—Leg-angle adjusting-means separate from pivots

Definitions

  • the invention relates to a compass with articulated arms mounted on a circular head, which are formed twisted with respect to the longitudinal axis of the compass (see document JP 51020299 U ).
  • the invention is therefore based on the object to provide a compass that is compact and for which a smaller package is sufficient.
  • the legs are movable in an adjustment along a plane which coincides with a dividing plane formed between end portions of the legs.
  • the invention is based on the finding that the dimensions of the compass, in particular its width, can be further reduced if it has helically twisted legs. In addition, this creates a striking, appealing design.
  • Another advantage of the compass according to the invention is the fact that no recessed grips are required.
  • the ease of operation normally achieved by recessed grips results in the compass according to the invention by the ability to grip the individual compass legs.
  • the invention provided rotation of the legs causes an overlap of the legs, which results in a higher accuracy when drawing small circles.
  • the compass according to the invention has an adjusting spindle attached to the legs with two oppositely directed
  • Threaded sections which have a high pitch and can be stored in threaded bushes of the legs.
  • the rotation of the legs is approximately 90 °.
  • the degree of twisting or torsion of the legs may be chosen differently (at least 45 °, preferably at least 80 °) (not part of the invention) to produce a particular visual appearance.
  • the compass can be opened and closed without impairing its function.
  • the legs may at least in sections have an approximately quadrangular, in particular rectangular cross-section. If the compass according to the invention has a quadrangular cross section, the rotation is particularly clearly visible on the basis of the helically extending edges of the legs. In order to achieve an attractive appearance, it may further be provided that side surfaces of the legs have a curvature or curvature at least in sections. Furthermore, it can be provided that the outer contour of the two legs runs approximately steadily in the region of their parting plane, so that no steps, jumps or the like are visible. When closed, this creates the impression of a single, contiguous surface.
  • the quadrangular, in particular the rectangular, legs may have lateral surfaces of varying width along their longitudinal axis.
  • a leg can have a rectangular cross-section on one side, the longer sides being arranged at the bottom and at the top, whereas at the other end of the leg the likewise rectangular one Cross-section at its top and bottom has the shorter sides of the rectangular cross-section.
  • the quadrangular or rectangular leg has two pairs of opposite side surfaces, the first pair of side surfaces having a smaller width and the second pair of side surfaces having a larger width.
  • the width of the opposite side surfaces may change such that the pair, which has the smaller width in the region of the compass head, in the region of the end portion has the greater width.
  • the pair, which has the greater width in the region of the circular head, in the region of the end portion have the smaller width.
  • the legs of the compass according to the invention in the region of the compass head have substantially non-twisted head portions, followed by the twisted middle portions and substantially non-twisted end portions.
  • the adjusting spindle can be particularly easily realized with their storage in the legs.
  • receptacles or holders for a compass needle, a mine or the like may be provided at the end portions.
  • a leg in the compass according to the invention, provision may be made for a leg to consist of a first leg section made of metal and a second leg section of plastic connected thereto.
  • the first leg portions which are hinged to the circle head, made of metal
  • the second leg portions which comprise the end portions with the receptacles or holders are made of plastic.
  • a particularly attractive appearance can be achieved if, in the compass according to the invention, the parting plane between the first and the second leg section is arched or curved.
  • the adjusting spindle can be mounted in different locations far away from the compass head arranged bearing points of the legs. Accordingly, the adjusting spindle is not mounted symmetrically, instead it runs obliquely to the circular longitudinal axis. In this context, it is preferred that the adjusting spindle has a preferably spherical adjusting screw, which is received in corresponding, preferably hemispherical recesses on the inner sides of the legs.
  • Compass 1 shown comprises a compass head 2 with legs 3, 4 articulated thereon and an adjusting spindle 5 mounted on the legs 3, 4.
  • the adjusting spindle 5 has an adjusting wheel or an adjusting screw 6, which is spherical in the illustrated embodiment. From the adjusting screw 6 extending on both sides of the adjusting spindle 5 oppositely directed threaded portions, wherein a threaded portion left-hand thread and the other threaded portion has right-hand thread.
  • the adjusting spindle 5 is mounted in threaded bushes 7, 8, the best in the rear view of Fig. 2 you can see.
  • the compass 1 has at its front locking screws 9, 10, which are screwed into the threaded bushes 7, 8 and clamp with their shank the adjusting spindle 5.
  • the locking screws 9, 10 are screwed in, an adjustment of the legs 3, 4 is blocked.
  • the locking screws 9, 10 are released and the adjustment can be made by turning the adjusting screw 6.
  • the circle 1 is shown in the open position.
  • the adjusting spindle 5 is arranged obliquely in the illustrated embodiment with respect to the longitudinal axis of the circle 1, that is, it is mounted in different distances away from the compass head 2 arranged bearing points of the legs 3, 4. In this way, reduce the outer dimensions of the circle 1, so that a smaller package is sufficient.
  • both legs 3, 4 are helically twisted together with respect to the longitudinal axis.
  • the rotation of the legs is in In the illustrated embodiment, approximately 90 °, in other embodiments (not part of the invention), the rotation 45 ° to 70 °, 80 ° or take an intermediate value.
  • the legs 3, 4 have, at least in sections, a quadrangular cross-section. The individual side surfaces of the quadrangular cross section partially have a slight curvature. How best in Fig. 4 can be seen, the top of the leg 4 goes over in a lateral surface in the region of the end portion of the leg 4. Likewise, the surface of the other leg 3 merges into a lateral surface in the region of the end section.
  • the compass 1 is designed so that the legs 3, 4 in the region of the circular head 2 have a substantially non-twisted head portion, to which a twisted central portion 11, 12 and substantially non-twisted end portions 13, 14 connect.
  • the legs 3, 4 each consist of a first leg portion of metal, which is hinged to the compass head 2 and a second, connected to the first leg portion leg portion of plastic.
  • the first and second leg portions are approximately equal in length.
  • the parting plane between the first and the second leg portion extends in the region of the central portion 11, 12 and is curved.

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  • Pivots And Pivotal Connections (AREA)
  • Stringed Musical Instruments (AREA)
  • Supports For Plants (AREA)
  • Toys (AREA)
  • Food-Manufacturing Devices (AREA)

Description

Die Erfindung betrifft einen Zirkel mit an einem Zirkelkopf gelenkig gelagerten Schenkeln, die bezüglich der Längsachse des Zirkels verdreht geformt sind (siehe Dokument JP 51020299 U ).The invention relates to a compass with articulated arms mounted on a circular head, which are formed twisted with respect to the longitudinal axis of the compass (see document JP 51020299 U ).

Bei diesen bekannten Zirkeln wird es als nachteilig angesehen, dass wegen der Außenabmessungen eine vergleichsweise große Verpackung benötigt wird.In these known circles, it is considered disadvantageous that a comparatively large package is needed because of the outer dimensions.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Zirkel anzugeben, der kompakt aufgebaut ist und für den eine kleinere Verpackung ausreichend ist.The invention is therefore based on the object to provide a compass that is compact and for which a smaller package is sufficient.

Zur Lösung dieser Aufgabe ist bei einem Zirkel der eingangs genannten Art erfindungsgemäß vorgesehen, dass die Schenkel bei einer Verstellbewegung entlang einer Ebene bewegbar sind, die mit einer zwischen Endabschnitten der Schenkel gebildeten Trennbene übereinstimmt.To solve this problem is provided according to the invention in a compass of the type mentioned that the legs are movable in an adjustment along a plane which coincides with a dividing plane formed between end portions of the legs.

Der Erfindung liegt die Erkenntnis zugrunde, dass die Abmessungen des Zirkels, insbesondere seine Breite, weiter verringert werden können, wenn er schraubenförmig verdrehte Schenkel aufweist. Zudem wird dadurch ein auffälliges, ansprechendes Design geschaffen.The invention is based on the finding that the dimensions of the compass, in particular its width, can be further reduced if it has helically twisted legs. In addition, this creates a striking, appealing design.

Ein weiterer Vorteil des erfindungsgemäßen Zirkels ist darin zu sehen, dass keine Griffmulden erforderlich sind. Die normalerweise durch Griffmulden erreichte leichtere Bedienbarkeit ergibt sich bei dem erfindungsgemäßen Zirkel durch die Möglichkeit, die einzelnen Zirkelschenkel zu greifen.Another advantage of the compass according to the invention is the fact that no recessed grips are required. The ease of operation normally achieved by recessed grips results in the compass according to the invention by the ability to grip the individual compass legs.

Darüber hinaus bewirkt die erfindungsgemäß vorgesehene Verdrehung der Schenkel eine Überlappung der Schenkel, die in einer höheren Genauigkeit beim Zeichnen kleiner Kreise resultiert.In addition, the invention provided rotation of the legs causes an overlap of the legs, which results in a higher accuracy when drawing small circles.

Vorzugsweise weist der erfindungsgemäße Zirkel eine an den Schenkeln angebrachte Verstellspindel mit zwei entgegengesetzt gerichtetenPreferably, the compass according to the invention has an adjusting spindle attached to the legs with two oppositely directed

Gewindeabschnitten auf, die eine hohe Steigung aufweisen und in Gewindebuchsen der Schenkel gelagert sein können.Threaded sections, which have a high pitch and can be stored in threaded bushes of the legs.

Bei dem erfindungsgemäßen Zirkel kann es vorgesehen sein, dass die Verdrehung der Schenkel näherungsweise 90° beträgt. Das Maß der Verdrehung oder Torsion der Schenkel kann unterschiedlich gewählt sein (wenigstens 45°, vorzugsweise wenigstens 80°) (nicht Teil der Erfindung), um ein bestimmtes optisches Erscheinungsbild hervorzurufen. Bei den angegebenen verschiedenen Verdrehungswinkeln ist selbstverständlich sichergestellt, dass der Zirkel ohne Beeinträchtigung seiner Funktion geöffnet und geschlossen werden kann.In the compass according to the invention it can be provided that the rotation of the legs is approximately 90 °. The degree of twisting or torsion of the legs may be chosen differently (at least 45 °, preferably at least 80 °) (not part of the invention) to produce a particular visual appearance. Of course, at the indicated different angles of rotation it is ensured that the compass can be opened and closed without impairing its function.

Gemäß einer Ausgestaltung der Erfindung können die Schenkel zumindest abschnittsweise einen näherungsweise viereckigen, insbesondere rechteckigen Querschnitt aufweisen. Wenn der erfindungsgemäße Zirkel einen viereckigen Querschnitt aufweist, ist die Verdrehung anhand der schraubenförmig verlaufenden Kanten der Schenkel besonders gut sichtbar. Um ein ansprechendes Erscheinungsbild zu erzielen, kann es ferner vorgesehen sein, dass Seitenflächen der Schenkel zumindest abschnittsweise eine Wölbung oder Krümmung aufweisen. Ferner kann es vorgesehen sein, dass die Außenkontur der beiden Schenkel im Bereich ihrer Trennebene näherungsweise stetig verläuft, sodass keine Stufen, Sprünge oder dergleichen sichtbar sind. Im geschlossenen Zustand wird dadurch der Eindruck einer einzigen, zusammenhängenden Fläche hervorgerufen.According to one embodiment of the invention, the legs may at least in sections have an approximately quadrangular, in particular rectangular cross-section. If the compass according to the invention has a quadrangular cross section, the rotation is particularly clearly visible on the basis of the helically extending edges of the legs. In order to achieve an attractive appearance, it may further be provided that side surfaces of the legs have a curvature or curvature at least in sections. Furthermore, it can be provided that the outer contour of the two legs runs approximately steadily in the region of their parting plane, so that no steps, jumps or the like are visible. When closed, this creates the impression of a single, contiguous surface.

Um die Abmessungen des erfindungsgemäßen Zirkels zu verringern, kann es vorgesehen sein, dass die viereckigen, insbesondere die rechteckigen Schenkel entlang ihrer Längsachse Seitenflächen mit sich ändernder Breite aufweisen. Beispielsweise kann ein Schenkel an einer Seite einen rechteckigen Querschnitt aufweisen, wobei die längeren Seiten unten und oben angeordnet sind, wohingegen am andere Ende des Schenkels der ebenfalls rechteckige Querschnitt an seiner Ober- und Unterseite die kürzeren Seiten des Rechteckquerschnitts aufweist. In diesem Zusammenhang wird es bevorzugt, dass der viereckige oder rechteckige Schenkel zwei Paare von gegenüberliegenden Seitenflächen aufweist, wobei das erste Paar der Seitenflächen eine geringere Breite und das zweite Paar der Seitenflächen eine größere Breite aufweist.In order to reduce the dimensions of the compass according to the invention, provision may be made for the quadrangular, in particular the rectangular, legs to have lateral surfaces of varying width along their longitudinal axis. For example, a leg can have a rectangular cross-section on one side, the longer sides being arranged at the bottom and at the top, whereas at the other end of the leg the likewise rectangular one Cross-section at its top and bottom has the shorter sides of the rectangular cross-section. In this connection, it is preferable that the quadrangular or rectangular leg has two pairs of opposite side surfaces, the first pair of side surfaces having a smaller width and the second pair of side surfaces having a larger width.

Vorzugsweise kann sich die Breite der einander gegenüberliegenden Seitenflächen derart ändern, dass das Paar, das im Bereich des Zirkelkopfes die geringere Breite aufweist, im Bereich des Endabschnitts die größere Breite aufweist. Alternativ kann das Paar, das im Bereich des Zirkelkopfes die größere Breite aufweist, im Bereich des Endabschnitts die geringere Breite aufweisen.Preferably, the width of the opposite side surfaces may change such that the pair, which has the smaller width in the region of the compass head, in the region of the end portion has the greater width. Alternatively, the pair, which has the greater width in the region of the circular head, in the region of the end portion have the smaller width.

Es liegt auch im Rahmen der Erfindung, dass die Schenkel des erfindungsgemäßen Zirkels im Bereich des Zirkelkopfes im Wesentlichen nicht verdrehte Kopfabschnitte aufweisen, an die sich verdrehte Mittelabschnitte und im Wesentlichen nicht verdrehte Endabschnitte anschließen. Bei einem derart ausgebildeten Zirkel, der einen nicht verdrehten, das heißt ebenen Kopfabschnitt aufweist, kann die Verstellspindel mit ihrer Lagerung in den Schenkeln besonders einfach realisiert werden. Ebenso können an den Endabschnitten Aufnahmen oder Halterungen für einen Zirkelnadel, eine Mine oder dergleichen vorgesehen sein.It is also within the scope of the invention that the legs of the compass according to the invention in the region of the compass head have substantially non-twisted head portions, followed by the twisted middle portions and substantially non-twisted end portions. In such a trained compass having a non-twisted, that is flat head portion, the adjusting spindle can be particularly easily realized with their storage in the legs. Likewise, receptacles or holders for a compass needle, a mine or the like may be provided at the end portions.

Bei dem erfindungsgemäßen Zirkel kann es vorgesehen sein, dass ein Schenkel aus einem ersten, aus Metall bestehenden Schenkelabschnitt und einem zweiten, mit diesem verbundenen, aus Kunststoff bestehenden Schenkelabschnitt besteht. Vorzugsweise bestehen die ersten Schenkelabschnitte, die am Zirkelkopf gelenkig gelagert sind, aus Metall, die zweiten Schenkelabschnitte, die die Endabschnitte mit den Aufnahmen oder Halterungen umfassen, bestehen aus Kunststoff.In the compass according to the invention, provision may be made for a leg to consist of a first leg section made of metal and a second leg section of plastic connected thereto. Preferably, the first leg portions, which are hinged to the circle head, made of metal, the second leg portions which comprise the end portions with the receptacles or holders are made of plastic.

Ein besonders ansprechendes Äußeres kann erzielt werden, wenn bei dem erfindungsgemäßen Zirkel die Trennebene zwischen dem ersten und dem zweiten Schenkelabschnitt gewölbt oder gekrümmt ist.A particularly attractive appearance can be achieved if, in the compass according to the invention, the parting plane between the first and the second leg section is arched or curved.

Um die äußeren Abmessungen weiter zu verringern, kann die Verstellspindel in unterschiedlich weit vom Zirkelkopf entfernt angeordneten Lagerpunkten der Schenkel gelagert sein. Dementsprechend ist die Verstellspindel nicht symmetrisch angebracht, stattdessen verläuft sie schräg zur Zirkellängsachse. In diesem Zusammenhang wird es bevorzugt, dass die Verstellspindel eine vorzugsweise kugelförmige Verstellschraube aufweist, die in entsprechenden, vorzugsweise halbkugelförmigen Aussparungen an den Innenseiten der Schenkel aufgenommen ist.In order to further reduce the external dimensions, the adjusting spindle can be mounted in different locations far away from the compass head arranged bearing points of the legs. Accordingly, the adjusting spindle is not mounted symmetrically, instead it runs obliquely to the circular longitudinal axis. In this context, it is preferred that the adjusting spindle has a preferably spherical adjusting screw, which is received in corresponding, preferably hemispherical recesses on the inner sides of the legs.

Weitere Vorteile und Einzelheiten der Erfindung werden anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnungen erläutert. Die Zeichnungen sind schematische Darstellungen und zeigen:

Fig. 1
einen erfindungsgemäßen Zirkel in einer Vorderansicht;
Fig. 2
eine Ansicht des in Fig. 1 gezeigten Zirkels von hinten;
Fig. 3
eine perspektivische Ansicht des Zirkels von Fig. 1;
Fig. 4
eine weitere perspektivische Ansicht des Zirkels von Fig. 1;
Fig. 5
den erfindungsgemäßen Zirkel in geöffneter Stellung; und
Fig. 6
eine Ansicht des in Fig. 5 gezeigten erfindungsgemäßen Zirkels von hinten.
Further advantages and details of the invention will be explained with reference to an embodiment with reference to the drawings. The drawings are schematic representations and show:
Fig. 1
a compass according to the invention in a front view;
Fig. 2
a view of the in Fig. 1 shown circles from behind;
Fig. 3
a perspective view of the circle of Fig. 1 ;
Fig. 4
another perspective view of the circle of Fig. 1 ;
Fig. 5
the compass according to the invention in the open position; and
Fig. 6
a view of the in Fig. 5 shown compass according to the invention from behind.

Der in den Fig. 1 bis 6 gezeigte Zirkel 1 umfasst einen Zirkelkopf 2 mit daran gelenkig gelagerten Schenkeln 3, 4 und einer an den Schenkeln 3, 4 angebrachten Verstellspindel 5. Die Verstellspindel 5 weist ein Verstellrad bzw. eine Verstellschraube 6 auf, die in dem dargestellten Ausführungsbeispiel kugelförmig ausgebildet ist. Von der Verstellschraube 6 erstrecken sich zu beiden Seiten der Verstellspindel 5 entgegengesetzt gerichtete Gewindeabschnitte, wobei ein Gewindeabschnitt Linksgewinde und der andere Gewindeabschnitt Rechtsgewinde aufweist.The in the Fig. 1 to 6 Compass 1 shown comprises a compass head 2 with legs 3, 4 articulated thereon and an adjusting spindle 5 mounted on the legs 3, 4. The adjusting spindle 5 has an adjusting wheel or an adjusting screw 6, which is spherical in the illustrated embodiment. From the adjusting screw 6 extending on both sides of the adjusting spindle 5 oppositely directed threaded portions, wherein a threaded portion left-hand thread and the other threaded portion has right-hand thread.

Die Verstellspindel 5 ist in Gewindebuchsen 7, 8 gelagert, die am besten in der Rückansicht von Fig. 2 zu sehen sind. In den perspektivischen Darstellungen der Fig. 3 und 4 erkennt man, dass der Zirkel 1 an seiner Vorderseite Feststellschrauben 9, 10 aufweist, die in die Gewindebuchsen 7, 8 geschraubt sind und mit ihrem Schaft die Verstellspindel 5 festklemmen. Wenn die Feststellschrauben 9, 10 eingeschraubt sind, wird eine Verstellung der Schenkel 3, 4 blockiert. Um bei dem Zirkel 1 einen bestimmten Radius einzustellen, werden die Feststellschrauben 9, 10 gelöst und die Einstellung kann durch Drehen der Verstellschraube 6 erfolgen. In den Fig. 5 und 6 ist der Zirkel 1 in geöffneter Stellung gezeigt.The adjusting spindle 5 is mounted in threaded bushes 7, 8, the best in the rear view of Fig. 2 you can see. In the perspective representations of 3 and 4 it can be seen that the compass 1 has at its front locking screws 9, 10, which are screwed into the threaded bushes 7, 8 and clamp with their shank the adjusting spindle 5. When the locking screws 9, 10 are screwed in, an adjustment of the legs 3, 4 is blocked. To set a certain radius in the compass 1, the locking screws 9, 10 are released and the adjustment can be made by turning the adjusting screw 6. In the FIGS. 5 and 6 the circle 1 is shown in the open position.

Die Verstellspindel 5 ist in dem dargestellten Ausführungsbeispiel schräg bezüglich der Längsachse des Zirkels 1 angeordnet, das heißt sie ist in unterschiedlich weit vom Zirkelkopf 2 entfernt angeordneten Lagerpunkten der Schenkel 3, 4 gelagert. Auf diese Weise verringern sich die äußeren Abmessungen des Zirkels 1, sodass eine kleinere Verpackung ausreichend ist.The adjusting spindle 5 is arranged obliquely in the illustrated embodiment with respect to the longitudinal axis of the circle 1, that is, it is mounted in different distances away from the compass head 2 arranged bearing points of the legs 3, 4. In this way, reduce the outer dimensions of the circle 1, so that a smaller package is sufficient.

Bei dem Zirkel 1 sind beide Schenkel 3, 4 bezüglich der Längsachse gemeinsam schraubenförmig verdreht geformt. Dadurch wird einerseits ein kompakter, Platz sparender Aufbau erzielt, wodurch sich ein neuartiges, ungewöhnliches, optisch ansprechendes Erscheinungsbild ergibt. Die Verdrehung der Schenkel beträgt in dem dargestellten Ausführungsbeispiel näherungsweise 90°, bei anderen Ausführungen (nicht Teil der Erfindung) kann die Verdrehung 45° bis 70°, 80° oder einen dazwischen liegenden Wert einnehmen. Die Schenkel 3, 4 weisen zumindest abschnittsweise einen viereckigen Querschnitt auf. Die einzelnen Seitenflächen des viereckigen Querschnitts weisen teilweise eine geringe Wölbung auf. Wie am besten in Fig. 4 zu sehen ist, geht die Oberseite des Schenkels 4 in eine seitliche Fläche im Bereich des Endabschnitts des Schenkels 4 über. Ebenso geht die Oberfläche des anderen Schenkels 3 in eine seitliche Fläche im Bereich des Endabschnitts über.In the compass 1, both legs 3, 4 are helically twisted together with respect to the longitudinal axis. As a result, on the one hand, a compact, space-saving design is achieved, resulting in a novel, unusual, visually appealing appearance. The rotation of the legs is in In the illustrated embodiment, approximately 90 °, in other embodiments (not part of the invention), the rotation 45 ° to 70 °, 80 ° or take an intermediate value. The legs 3, 4 have, at least in sections, a quadrangular cross-section. The individual side surfaces of the quadrangular cross section partially have a slight curvature. How best in Fig. 4 can be seen, the top of the leg 4 goes over in a lateral surface in the region of the end portion of the leg 4. Likewise, the surface of the other leg 3 merges into a lateral surface in the region of the end section.

Der Zirkel 1 ist so ausgebildet, dass die Schenkel 3, 4 im Bereich des Zirkelkopfes 2 einen im Wesentlichen nicht verdrehten Kopfabschnitt aufweisen, an den sich ein verdrehter Mittelabschnitt 11, 12 und im Wesentlichen nicht verdrehte Endabschnitte 13, 14 anschließen.The compass 1 is designed so that the legs 3, 4 in the region of the circular head 2 have a substantially non-twisted head portion, to which a twisted central portion 11, 12 and substantially non-twisted end portions 13, 14 connect.

Die Schenkel 3, 4 bestehen jeweils aus einem ersten Schenkelabschnitt aus Metall, der an dem Zirkelkopf 2 gelenkig angebracht ist sowie aus einem zweiten, mit dem ersten Schenkelabschnitt verbundenen Schenkelabschnitt aus Kunststoff. In dem dargestellten Ausführungsbeispiel sind der erste und der zweite Schenkelabschnitt näherungsweise gleich lang. Die Trennebene zwischen dem ersten und dem zweiten Schenkelabschnitt verläuft im Bereich des Mittelabschnitts 11, 12 und ist gewölbt ausgebildet.The legs 3, 4 each consist of a first leg portion of metal, which is hinged to the compass head 2 and a second, connected to the first leg portion leg portion of plastic. In the illustrated embodiment, the first and second leg portions are approximately equal in length. The parting plane between the first and the second leg portion extends in the region of the central portion 11, 12 and is curved.

Claims (11)

  1. A compass (1) with arms (3, 4) mounted in an articulated manner on a compass head (2), which are formed in a twisted manner relative to the longitudinal axis of the compass (1),
    characterised in that
    the arms (3, 4) can be displaced by an adjustment movement along a plane which corresponds with a dividing plane formed between end portions (13, 14) of the arms (3, 4).
  2. The compass according to claim 1,
    characterised in that
    it provides an adjustment spindle (5) attached to the arms (3, 4) with two threaded portions directed opposite to one another.
  3. The compass according to claim 1 or 2,
    characterised in that
    the twisting of the arms (3, 4) amounts to approximately 90°.
  4. The compass according to any one of the preceding claims,
    characterised in that
    the arms (3, 4) provide an approximately quadrilateral, especially rectangular cross-section, at least in portions.
  5. The compass according to claim 4,
    characterised in that
    the quadrilateral, especially rectangular arms (3, 4) provide lateral surfaces of variable width along their longitudinal axis.
  6. The compass according to claim 4 or 5,
    characterised in that
    the quadrilateral, especially rectangular arms (3, 4) provide two pairs of mutually opposite lateral surfaces, wherein the first pair of lateral surfaces provides a narrower width, and the second pair of lateral surfaces provides a wider width.
  7. The compass according to any one of the preceding claims,
    characterised in that,
    in the region of the compass head (2), the arms (3, 4) provide substantially un-twisted head portions which adjoin twisted middle portions (11, 12) and the substantially un-twisted end portions (13, 14).
  8. The compass according to any one of the preceding claims,
    characterised in that
    an arm (3, 4) comprises a first arm portion made of metal and a second arm portion connected to the latter made from synthetic material.
  9. The compass according to claim 8,
    characterised in that
    the dividing plane between the first and the second arm portion is convex or curved.
  10. The compass according to any one of claims 2 to 9,
    characterised in that
    the adjustment spindle (5) is mounted in mounting points of the arms (3, 4) arranged at a different distance from the compass head (2).
  11. The compasses according to any one of claims 2 to 10,
    characterised in that
    the adjustment spindle (5) provides a preferably spherical adjustment screw (6), which is accommodated in corresponding, preferably hemi-spherical recesses in the internal sides of the arms (3, 4).
EP20110176329 2010-08-12 2011-08-02 Compass Not-in-force EP2418094B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010034185 DE102010034185B3 (en) 2010-08-12 2010-08-12 compasses

Publications (3)

Publication Number Publication Date
EP2418094A2 EP2418094A2 (en) 2012-02-15
EP2418094A3 EP2418094A3 (en) 2012-08-08
EP2418094B1 true EP2418094B1 (en) 2013-07-31

Family

ID=44735814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110176329 Not-in-force EP2418094B1 (en) 2010-08-12 2011-08-02 Compass

Country Status (3)

Country Link
EP (1) EP2418094B1 (en)
CN (1) CN102381105B (en)
DE (1) DE102010034185B3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107599691A (en) * 2017-09-04 2018-01-19 安徽信息工程学院 Multifunctional compass

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120299U (en) * 1974-08-01 1976-02-14
DE3032254C2 (en) * 1980-08-27 1982-09-02 Fa. J.S. Staedtler, 8500 Nürnberg Circle
DE8805299U1 (en) * 1988-04-21 1989-08-24 Funk, Walter, Dipl. Industrie-Designer, 7012 Fellbach Circle
EP0536857B1 (en) * 1991-10-09 1994-06-01 ROTRING INTERNATIONAL GMBH & Co KG Proportional compasses
DE9407909U1 (en) * 1994-05-10 1994-07-14 Reißzeugfabrik Seelig GmbH & Co. KG, 91448 Emskirchen Compasses
CN201021021Y (en) * 2006-11-28 2008-02-13 东莞三协塑胶制品有限公司 Linked rod type compasses
CN201264449Y (en) * 2008-08-29 2009-07-01 杭州爱华文具有限公司 Spiral disc compasses
CN201249608Y (en) * 2008-08-29 2009-06-03 杭州爱华文具有限公司 Compass dividers
CN201380690Y (en) * 2009-03-09 2010-01-13 郑祖尧 Novel compasses

Also Published As

Publication number Publication date
CN102381105A (en) 2012-03-21
EP2418094A2 (en) 2012-02-15
DE102010034185B3 (en) 2012-01-05
EP2418094A3 (en) 2012-08-08
CN102381105B (en) 2015-08-19

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