EP0183629A1 - Halter zur drehbaren Befestigung eines Stiftes an den Zirkelschenkeln und Zirkel ausgestattet mit diesem Halter - Google Patents

Halter zur drehbaren Befestigung eines Stiftes an den Zirkelschenkeln und Zirkel ausgestattet mit diesem Halter Download PDF

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Publication number
EP0183629A1
EP0183629A1 EP85420201A EP85420201A EP0183629A1 EP 0183629 A1 EP0183629 A1 EP 0183629A1 EP 85420201 A EP85420201 A EP 85420201A EP 85420201 A EP85420201 A EP 85420201A EP 0183629 A1 EP0183629 A1 EP 0183629A1
Authority
EP
European Patent Office
Prior art keywords
compass
branch
branches
points
legs
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Withdrawn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
EP85420201A
Other languages
English (en)
French (fr)
Inventor
Michel Rastoldo
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.)
MAPED SAS
Original Assignee
MAPED SAS
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 MAPED SAS filed Critical MAPED SAS
Publication of EP0183629A1 publication Critical patent/EP0183629A1/de
Withdrawn legal-status Critical Current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
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/16—Features common to compasses, dividers, and callipers
    • B43L9/24—Means for mounting points or writing appliances on legs
    • 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
    • B43L9/18—Legs with toggle joints

Definitions

  • the present invention relating to the field of drawing instruments, relates to a device allowing the articulated and removable mounting of tracing instruments of all types, as well as dry points, on a branch or on the two branches of a drawing compass.
  • the subject of the invention is also, as a product, a complete drawing compass comprising the application of this articulated mounting device.
  • Drawing compasses for professional or school use, most often have a main part formed by the two branches and their articulation, and one or more interchangeable elements attaching to the ends of the branches, depending on the particular use made of the compass .
  • These interchangeable elements are, for example, mechanical pencil parts, ink pieces of the "line drawing” type, supports adapted to receive a pen with Indian ink, etc.
  • the present invention aims to eliminate all of these drawbacks, its aim being to provide a mounting device which is well suited to parts made of synthetic material, which allows a simplification of the arms of the compass, therefore saving by eliminating a hinge, and which ensures perfect precision and safety for the position of the elements to be fixed.
  • the subject of the invention is a device for the articulated mounting of tracing instruments and points on the branches of a compass, this device essentially comprising, on the interchangeable element to be mounted made at least partially of a material synthetic having a certain elasticity, a transverse cylindrical recess opening on the two opposite sides of this element and also communicating with one end of said element by a passage of width slightly less than the diameter of the cylindrical recess, while the end of the branch of the compass to receive the aforementioned element is split so as to have two spaced legs, retaining between them a transverse axis substantially of.
  • the invention thus brings together at the same point, at least concentrates on the same minor axis, the functions of holding the element such as a writing instrument or point, and of articulation of this element. Holding by clipping effect, made possible by the production of the element considered in synthetic material, makes the installation and removal of this element very easy, and automatically ensures that the element is in place.
  • the two legs formed at the end of the compass branch each have a hole and are freely traversed by a screw with head whose thread carries a knurled nut, allowing a tightening of the two legs taking advantage of the elasticity of the split end of the branch.
  • the nut being loosened, it is possible to introduce the element to be mounted, such as a tracing or pointing instrument, on the axis formed by the screw.
  • the nut being then tightened, there is obtained between the two sides of the element considered and the two legs of the branch friction allowing comfortable use, that is to say retaining the element in its desired position of use , while authorizing its orientation by manual action.
  • the two tabs formed at the end of the compass branch each have a hole and are freely crossed by an axis, one end of which has a head and the other end of which carries means stop for a spring applied against the outer face of one of the legs.
  • the two tabs formed at the end of the compass branch each have a hole and are freely crossed by an axis comprising a head at each end, the tightening of the two tabs being ensured by their own elasticity.
  • This other variant completely eliminates the screwing means or the recourse to a spring, the holding by tightening of the tracing instrument or the tip, and the friction of the joint, being given by the elasticity of the material of the end. of the branch, suitably "prestressed", this material advantageously being sheet steel.
  • the subject of the invention is also any compass or similar drawing instrument, such as a baluster, comprising application of the articulated mounting device for tracing instruments and points defined above, such a compass or similar instrument being able to be fitted with this device mounting either on a single branch or on its two branches.
  • the split end of the or each branch concerned can be made of machined or formed metal, or of synthetic material, or else with a combination of these two types of material, so as to have the necessary deformability and / or elasticity.
  • the fundamental interest of the invention is to allow the creation of tracing instruments or their special supports made of synthetic material, a material which has significant advantages in terms of cost and ease of implementation. work, in particular in the production of writing instruments and corresponding supports recently appeared (mechanical pencil calibrated in advance by push button, support ring for tubular pen).
  • Figures 1 and 2 show the end of a compass branch (1) distant from its articulation to the other branch.
  • This branch end is designed to receive a tracing instrument or a dry point (2), the body or support (3) of which is made of a synthetic material which has a certain elasticity.
  • the end of the branch (1) has a relatively wide central slit (4) which divides this end into two symmetrical legs (5).
  • Each tab (5) is pierced with a hole (6), with a geometric axis (7) common with that of the other hole (6) and perpendicular to the slot (4), so that the end considered has a screed conformation.
  • a screw (8) one end of which has a head (9), freely crosses the two holes (6) along the axis (7).
  • the thread (10) of the screw (8) receives a knurled nut (11).
  • the tightening of the nut (11) secures the two tabs (5) between this nut (11) and the head (9) of the screw (8),. and allows a tightening of two legs (5), thanks to the flexibility of the end of the branch (1) due to its slot (4) and to its constituent material: machined or formed metal, or synthetic material, or combination of two previous materials.
  • the body (3) of synthetic material On the side opposite the element (12), such as a pencil lead or dry point, which it supports directly, the body (3) of synthetic material has a part limited by two parallel flat sides (13), and comprising a recess whose particular profile is clearly visible in Figure 3.
  • the actual recess (14) is cylindrical in shape; it is oriented transversely so as to lead to the two opposite sides (13) of the body (3), and its diameter (d) is substantially equal to that of the screw (8).
  • the passage (15) has an enlarged entry, resulting from inclined facets (16).
  • an elasticity slot (17) of small width extends the recess (14), starting from the bottom of the latter, opposite the passage (15).
  • the conformation of the body (3) allows its introduction and its retention by clipping effect on the screw (8) of the end of the branch (1). More particularly, the nut (11) being loosened, the element (2) to be mounted on the branch (1) is engaged between the two legs (5), the enlarged inlet (16) facilitating its engagement on the screw ( 8) which, crossing the passage (1 5 ) slightly apart, finally becomes housed in the cylindrical recess (14). By then tightening the nut (11), friction is created between the inner faces of the two legs (5) of the branch (1) and the two sides (13) of the body (3) of the element (2), so as to obtain braking of the body (3) in its rotation about the geometric axis (7), without total blocking.
  • FIG. 4 shows a complete compass, a first branch (1) of which is connected by a main articulation (18) to a second branch (19) which carries at its free end a dry point (20).
  • the first branch (1) is equipped as described above with reference to Figures 1 to 3, to receive an interchangeable tracing instrument (2). Thanks to its mounting device, the tracing instrument (2), once in place, can be oriented by pivoting around the axis (7), as shown by an arrow (21) and by the indication in lines mixed from a second position, so as to obtain a suitable orientation of the mine or the like (I2) whatever the opening angle (at) of the two branches (1,19).
  • Stops can be fitted at the joint along the axis (7) to limit the angular movement of the tracing instrument (2).
  • this tracing instrument (2) is obtained, after loosening the nut (11), by simple pulling in the direction of the branch (1); the elasticity of the body (3) then allows the extraction of the screw (8) out of the recess (14) and its exit through the passage (15).
  • the screw and the nut previously indicated are replaced by a small axis (22), which freely crosses the holes (6) of the two tabs (5) of the branch (1).
  • the axis (22) comprises at one of its ends a head (23), capable of being applied against the external face of a tab (5).
  • the axis (22) Towards its other end, the axis (22) has a groove (24) receiving a circlip (25), by any other means equivalent stop, retaining a helical spring (26) mounted around the axis (22) and applied against the outer face of the other tab (5).
  • Figure 7 relates to another variant, in which the two legs (5) of the branch (1) are freely traversed by an axis (27) having a head (28) at each end.
  • the branch (1) being made of a highly elastic steel sheet and "prestressed” in the direction of the arrows (29); the tightening given by the elasticity of the sheet is sufficient to ensure the maintenance of the tracing element (2) and the friction of the articulation around the geometric axis (7), when said element: 2) e ⁇ engaged by clipping on the axis (27).
  • the two arms (1,19) of a compass shown here can be equipped with either of this mounting device.
  • the first branch (I) thus allows the articulated mounting of a tracing instrument (2), for example with a lead (12), while the second branch (19) allows the articulated mounting of a dry point (20) or even an extension (30) equipped with a tip.
  • Figure 9 in which the two branches (1,19) of a compass are partially shown, shows that the element fixed by the device of the invention on one of the branches (1) can be a universal ring door -pencil (31) made of a synthetic material, and provided with a clamping screw (32) able to immobilize a pencil (33), or any other writing instrument such as "felt pen” which can be retained by the same way.
  • the ring (31) has, externally, a projecting part provided with the cylindrical recess and the other provisions specific to the invention.
  • the writing instrument (34) is a mechanical pusher with advance by pusher (35), the body (36) of which is made of a synthetic material comprises a lateral tab (37), made in one piece by molding with this body (36).
  • the cylindrical recess and the other arrangements previously described for mounting on the branch (1) are formed on the side tab (3 7).
  • a conventional metallic ink piece (38) of the "line drawing” type can also, as shown in FIG. 11, be secured to a body (3) made of a synthetic material, and provided with suitable arrangements for mounting it on the end of the branch (1).
  • Figure 13 shows a baluster of which a branch (1) receives a traceable instrument (2) interchangeable with body (3) of synthetic material, the end of the branch (1) and the body (3) of the instrument plot (2) being made as described above for a conventional compass.
  • the invention is not limited to the sole embodiments of this device for the articulated mounting of tracing instruments and points on the branches of a compass which have been described above, by way of examples; on the contrary, it embraces all of the variant embodiments or applications respecting the same principle.

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  • Toys (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Adornments (AREA)
EP85420201A 1984-11-22 1985-11-08 Halter zur drehbaren Befestigung eines Stiftes an den Zirkelschenkeln und Zirkel ausgestattet mit diesem Halter Withdrawn EP0183629A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8418137 1984-11-22
FR8418137A FR2573356B1 (fr) 1984-11-22 1984-11-22 Dispositif pour le montage articule d'instruments tracants et de pointes sur les branches d'un compas, et compas de dessin comportant application de ce dispositif

Publications (1)

Publication Number Publication Date
EP0183629A1 true EP0183629A1 (de) 1986-06-04

Family

ID=9310025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85420201A Withdrawn EP0183629A1 (de) 1984-11-22 1985-11-08 Halter zur drehbaren Befestigung eines Stiftes an den Zirkelschenkeln und Zirkel ausgestattet mit diesem Halter

Country Status (4)

Country Link
EP (1) EP0183629A1 (de)
JP (1) JPS61141595A (de)
ES (1) ES296023Y (de)
FR (1) FR2573356B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656257A1 (fr) * 1989-12-22 1991-06-28 Maped Dispositif de serrage pour mine ou pointe seche de compas.
WO2009049590A2 (de) * 2007-10-15 2009-04-23 Draw.Tec Gmbh & Co. Kg Zirkel mit gelenk und arretiereinrichtung
ITPT20090007A1 (it) * 2009-06-19 2010-12-20 Project Sas Supporto coordinato e contenitore per cardio-compasso e cardio-frequenzimetro in ambito medico-cardiovascolare
CN102529525A (zh) * 2012-02-24 2012-07-04 陈科 一种新型圆规

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002115A1 (de) * 1990-01-25 1991-08-01 Staedtler Fa J S Zirkel
FR2944474B3 (fr) * 2009-04-15 2011-02-25 Maped Compas de dessin avec elements porte-accessoires a montage articule.
CN102390202B (zh) * 2011-08-18 2013-08-21 河南师范大学 多功能画规

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE150642C (de) *
FR363771A (fr) * 1906-03-01 1906-08-07 Georges Louis Coppin Vis de rappel progressive adaptée aux pièces de rechange de compas porte-mine ou tire-lignes
US1466712A (en) * 1921-05-23 1923-09-04 Pease C F Co Drawing instrument
FR1189633A (fr) * 1958-01-09 1959-10-05 Perfectionnement aux ustensiles à dessiner
FR2036802A1 (de) * 1969-04-02 1970-12-31 Europlastiques
DE3005835A1 (de) * 1980-02-16 1981-09-03 Gebrüder Haff GmbH, 8962 Pfronten Ansatzstueck fuer zirkel zur halterung eines zeichengeraets, insbesondere eines tuschefuellers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE150642C (de) *
FR363771A (fr) * 1906-03-01 1906-08-07 Georges Louis Coppin Vis de rappel progressive adaptée aux pièces de rechange de compas porte-mine ou tire-lignes
US1466712A (en) * 1921-05-23 1923-09-04 Pease C F Co Drawing instrument
FR1189633A (fr) * 1958-01-09 1959-10-05 Perfectionnement aux ustensiles à dessiner
FR2036802A1 (de) * 1969-04-02 1970-12-31 Europlastiques
DE3005835A1 (de) * 1980-02-16 1981-09-03 Gebrüder Haff GmbH, 8962 Pfronten Ansatzstueck fuer zirkel zur halterung eines zeichengeraets, insbesondere eines tuschefuellers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656257A1 (fr) * 1989-12-22 1991-06-28 Maped Dispositif de serrage pour mine ou pointe seche de compas.
WO2009049590A2 (de) * 2007-10-15 2009-04-23 Draw.Tec Gmbh & Co. Kg Zirkel mit gelenk und arretiereinrichtung
WO2009049590A3 (de) * 2007-10-15 2009-08-20 Draw Tec Gmbh & Co Kg Zirkel mit gelenk und arretiereinrichtung
US8132333B2 (en) 2007-10-15 2012-03-13 Draw.Tec Gmbh & Co. Kg Pair of compasses
ITPT20090007A1 (it) * 2009-06-19 2010-12-20 Project Sas Supporto coordinato e contenitore per cardio-compasso e cardio-frequenzimetro in ambito medico-cardiovascolare
CN102529525A (zh) * 2012-02-24 2012-07-04 陈科 一种新型圆规
CN102529525B (zh) * 2012-02-24 2013-10-30 陈科 一种新型圆规

Also Published As

Publication number Publication date
FR2573356B1 (fr) 1988-08-19
JPS61141595A (ja) 1986-06-28
ES296023Y (es) 1988-09-16
FR2573356A1 (fr) 1986-05-23
ES296023U (es) 1988-02-01

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