EP0191702B1 - Automatisch positionierbarer Drehtisch zum Zeichnen - Google Patents

Automatisch positionierbarer Drehtisch zum Zeichnen Download PDF

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Publication number
EP0191702B1
EP0191702B1 EP19860400315 EP86400315A EP0191702B1 EP 0191702 B1 EP0191702 B1 EP 0191702B1 EP 19860400315 EP19860400315 EP 19860400315 EP 86400315 A EP86400315 A EP 86400315A EP 0191702 B1 EP0191702 B1 EP 0191702B1
Authority
EP
European Patent Office
Prior art keywords
rotating part
rotation
rotating
drawing board
plate
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 - Lifetime
Application number
EP19860400315
Other languages
English (en)
French (fr)
Other versions
EP0191702A1 (de
Inventor
Gérard Doussin
Marcel Oguey
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0191702A1 publication Critical patent/EP0191702A1/de
Application granted granted Critical
Publication of EP0191702B1 publication Critical patent/EP0191702B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/06—Accessories, e.g. tool or work holders
    • B44B3/065—Work holders
    • 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
    • B43L5/002—Drawing boards with pivoting drawing surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/009—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings using a computer control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/02—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings wherein plane surfaces are worked

Definitions

  • the present invention relates generally to drawing boards, and more particularly to a drawing board of the type comprising a first fixed part and a second part rotating relative to the first and intended to receive a document to be processed, for example sheet of drawing, this set of fixed part and rotating part taking the place of a drawing device in association for example with a so-called "parallel" displacement ruler or of a drawing device.
  • French Patent No. 2 155 092 is a drawing board which also includes a first fixed part and a second rotating part receiving the drawing sheet.
  • This patent mainly characterizes the automatic positioning of the turntable precisely at predetermined angles, for example using a roller biased by a spring and associated notches provided at the periphery of the rotating part.
  • An advantage of the present invention is to offer manual draughtsmen a flexible, simple, fast and complete working tool for the development or manual realization of drawing, painting, illustration, engraving, tracing work (tables, plans, etc. .) cutting, assembling, gluing, coloring or other, rapid and precise movement in the free position or blocking on an angle of the document to be processed (fixed to the turntable by different known or new means in combination) compared to a rule so-called parallel or a drawing device that makes drawing gestures in general as easy as possible, including disabled designers.
  • the present invention relates to a drawing board, of the type comprising a fixed support on which is mounted for rotation about an axis by means of an electric motor, a movable part intended to receive a drawing sheet; said board being defined by the features of the claims below.
  • a drawing board of the invention is in the form of a box 10.
  • the box 10 has on its upper surface a circular opening 12 in which is received in pivoting a rotary assembly on its axis comprising a circular plate 14, on which must be fixed, by any conventional removable means, the support of the document to be processed 16.
  • the rotary assembly further comprises a rigid ring 18 serving to support the plate 14, and supporting part of the elements necessary for the transmission of the rotary movement.
  • the crown 18 is supported in rotation by a plurality of idle rollers 20 which are received in an uninterrupted groove 22 formed in the outer peripheral surface of the crown 18.
  • a continuous gear 24 In addition, in the outer peripheral surface of the crown 18, below the groove 22 is also formed a continuous gear 24.
  • the gear 24 cooperates with a toothed wheel 26 which is mounted integral with the end of the shaft of output 28 of an electric motor 30.
  • the motor 30 consists either of a stepping motor or of a direct current motor, and is fixed on a tilting axis 29, itself fixed to the box 10 through an appropriate support member 32.
  • the means for controlling the disengaging and clutch movements of the motor 30 comprise a rotary operating handle 31 which is mounted outside the box 10, being integral with a pin 72 mounted free in rotation on said box. At the end of the axis 72 opposite to the handle 31 is provided an eccentric 74 whose external surface forming a cam is capable of exerting a thrust on the motor 30 in order to separate it from the crown 18 or from the plate 14.
  • a spring 76 allows the engine to be re-engaged.
  • the drawing board comprises, with reference to FIG. 2, an electronic control unit, generally indicated at 34, which may be either integrated into the drawing board, or independent.
  • the housing 34 has a keyboard 36 which has a number of keys 38, for purposes explained below.
  • FIG. 3 a top view of a locking mechanism of the rotary table 14, 18 of the drawing board of the present invention.
  • This mechanism comprises a member forming a double lever 40 which is pivotally mounted about an axis 42 integral with the box 10.
  • a roller 44 of automatic latching capable of cooperating by engagement with one of several notches triangular 46 formed in the outer peripheral surface of the crown 18.
  • the lever 40 also has, adjacent to said outer peripheral surface of the crown 18, and a curvature substantially complementary thereto, a braking plate 48.
  • lever 40 is also permanently biased, clockwise in FIG. 3, by a tension spring 50 which is mounted between fastening members 52, 54 provided respectively on the lever 40 and on the box 10.
  • means for controlling the movements of the double lever 40 comprise a rotary operating handle 56 which is mounted outside the box 10 while being integral e of an axis 58 mounted free in rotation on said box.
  • a rotary operating handle 56 which is mounted outside the box 10 while being integral e of an axis 58 mounted free in rotation on said box.
  • an eccentric 60 At the end of the axis 58 opposite the handle 56 is provided an eccentric 60 whose outer surface forming a cam is capable of urging a roller 62 integral with the double lever 40 on the same side as the point of attachment of the spring 50 by relative to the pivot axis 42 of said lever.
  • the operation of the drawing board as described above is as follows.
  • the user first blocks the turntable in a desired angular position by an appropriate action on the locking mechanism using the associated handle 56. It can be noted here that this blocking can be carried out either using roller 44 cooperating with one of the notches 46, in the case of a predetermined angular position, either by means of the braking plate 48 applied against the outer periphery of the ring 18, in the case of a position any angle.
  • the purpose of this first blocking operation is to bring the turntable into a given angular reference position, chosen for example according to the design attached to it.
  • the electronic unit contained in the housing 34 then acts, by means not described here as well known to those skilled in the art, to generate an electric signal for controlling the motor 30 described above from the angular information. entered using keys 38.
  • the requested angular displacement will be calculated relative to the polar zero of angular reference (initialization). Then pressing one of the + or - keys (referenced 38a and 38b respectively) the plate will be driven in one direction (38a) or in the other (38b) in rotation by the motor 30, via the toothed wheel 26 and the gear 24 in accordance with the requested angular information, from the angular position of reference 0 ° as mentioned above "initialization", then locked in this new angular position.
  • one or more memorizable secondary initializations can be carried out, without losing the initial polar zero.
  • the user types on the keyboard 36 one of the keys 38h corresponding to the desired secondary initialization. By hitting one of the keys 38i he can erase this secondary initialization.
  • the housing 34 will also suitably include means for effecting any relative angular rotation relative to the current angular position.
  • means for effecting any relative angular rotation relative to the current angular position it will suffice, after a numerical value of desired angle has been entered on said keyboard (36), to directly press one of the + or - keys (without using the 0 key as previously) to thus carry out the corresponding relative angular displacement in the desired direction, from the last arbitrary positioning of the tray.
  • the keyboard 36 of the electronic unit may also include an erase key, in order to be able to cancel an incorrect choice of angle, as well as keys for the rapid choice of predetermined angles, such as 15 °, 30 °, 45 °. , 60 °, 75 °, 90 °, etc ... indicated at 38c in Figure 2.
  • a step-by-step key (38f) can also be provided to refine the positioning accuracy of the turntable, each pulse corresponding to one step of the electric motor.
  • Means may also be provided on the electronic unit for displaying the current angular position of the table relative to the chosen angular reference position.
  • This display in the form of light-emitting diodes of the type with seven segments, or again with liquid crystals, is schematically indicated at 64 in FIG. 2.
  • Such a current or instantaneous angular position of the table can be obtained in a simple manner either from the electrical displacement signal applied to the motor, or from the signed angle values entered by the keyboard 36, or still, for maximum precision, by means of a position sensor device of any type (opto-electronic, electromechanical, and etc.) associated with the turntable and the fixed box.
  • the locking mechanism may be used, in addition to the purpose of determining a desired angular reference position, each time it is necessary to block the table, that is to say in the case where mechanical forces exerted on the tray by the user may accidentally move it, to distort the accuracy of the indication of the angle and subsequent movements, that is to say in the case where the user wishes to return with maximum precision to a predetermined angular position corresponding to the 'engagement of the roller 44 of the lever 40 in one of the associated notches 46.
  • the notches 46 may be angularly separated by 15 °, 30 °, 45 °, 60 °, 90 °, etc. as required.
  • FIGS. 4 and 5 another variant of a drawing table is shown, in which the rotary plate no longer remains integral with the board but can be removed, and replaced by a system of plates exactly adapted to the types of work in progress.
  • a system of plates exactly adapted to the types of work in progress.
  • made of any flexible or composite material wood, plastics, altuglass, steel, glass, etc.
  • which can be printed with lines, grids, templates, marks of degrees or angles, or other, which can require additional accessories for example for fixing films by nipples and which can be designed as a vacuum box for the maintenance of the working document.
  • a drawing board according to the invention comprises a box 10, having at its upper surface a circular opening 12 in which is pivotally received a circular plate 14 rotating on its axis and on which must be fixed, by any conventional removable means, the support of the document to be processed 16.
  • the plate 14 is shaped so as to support the elements necessary for the transmission of the rotary movement as well as the notches 46.
  • This plate 14 is rotatably supported by a plurality of idler rollers 70 and 80.
  • the rollers 70 located on the outer periphery of the plate 14 rotate said plate 14 on its axis while the rollers located under said plate 14 hold the latter at the upper horizontal level of the box 10.
  • the user places the double lever 40 in the intermediate position by action on the rotary operating handle 56, then disengages the motor 30 by action on the lever 31.
  • Holes 82 located near the outer edge of the plate 14, allow to grasp the plate to assist in its exit.
  • Other methods of extracting the plate can be envisaged, such as, for example, the use of an internal lever with an external handle exerting an upward thrust.
  • the present invention is in no way limited to the embodiment described and shown, but includes within its scope any variant or modification that may be made by those skilled in the art.
  • the rotary table can be translucent, and the box can then advantageously include, below said table, a light source.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)

Claims (2)

  1. Zeichentisch mit einem ortsfesten Gestell (10), auf dem um eine Achse drehbar ein bewegliches Teil (14) zur Aufnahme eines Zeichenblattes, eine mechanische Verriegelungsvorrichtung für dieses bewegliche Teil mit mindestens einer beweglichen Rolle (44), die in eine der entsprechenden Nuten (46) im drehbaren Teil eingreift, angeordnet sind, dadurch gekennzeichnet, daß
    a) die mechanische Verriegelungsvorrichtung über einen Handgriff (56) und Nockenscheiben (60, 62) betätigbar ist,
    b) die mechanische Verriegelungsvorrichtung mit einer Bremsscheibe (48) verbunden ist, die mit der äußeren Oberfläche des drehbaren Teiles (18) zusammenarbeitet,
    c) das bewegliche Teil (14) über einen Elektromotor (30) verdrehbar ist, wobei dieser Motor über eine Kupplungsvorrichtung (31,72,74,76) ankuppelbar ist für den Freilauf des drehbaren Teiles (18),
    d) die Steuerung der Drehung des drehbaren Teiles durch elektronische Mittel gesichert ist mit einer Memoryeinheit (34), einer Tastatur (36), die zugleich ausgestattet ist mit Einschalttasten und mit sekundären Speichertasten, die dem Benutzer die Bestimmung eines Drehwinkels des drehbaren Teiles über den Elektromotor ermöglichen.
  2. Zeichentisch nach Anspruch 1, dadurch gekennzeichnet, daß der drehbare Teil (18) in der Drehung von mehreren beweglichen Rollen (70, 80) abgestützt ist, die so angeordnet sind, daß das drehbare Teil auswechselbar ist.
EP19860400315 1985-02-15 1986-02-14 Automatisch positionierbarer Drehtisch zum Zeichnen Expired - Lifetime EP0191702B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8502270A FR2577476B1 (fr) 1985-02-15 1985-02-15 Planche a dessin rotative a positionnement automatique
FR8502270 1985-02-15

Publications (2)

Publication Number Publication Date
EP0191702A1 EP0191702A1 (de) 1986-08-20
EP0191702B1 true EP0191702B1 (de) 1991-12-27

Family

ID=9316349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860400315 Expired - Lifetime EP0191702B1 (de) 1985-02-15 1986-02-14 Automatisch positionierbarer Drehtisch zum Zeichnen

Country Status (3)

Country Link
EP (1) EP0191702B1 (de)
DE (1) DE3683063D1 (de)
FR (1) FR2577476B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353163A (zh) * 2018-11-30 2019-02-19 徐州幼儿师范高等专科学校 一种美术用一体式写生画板

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899449A (en) * 1988-09-29 1990-02-13 Simon Fouladian Drafting instrument
KR970022643A (ko) * 1995-10-24 1997-05-30 허광호 모니터의 방향과 각도 조정이 가능한 회전판이 삽착이가능한 다목적 테이블형 컴퓨터 케이스
DE202008012989U1 (de) * 2008-09-30 2009-01-02 Ravensburger Ag Zeichengerät zum Zeichnen von rotationssymmetrisch angeordneten Motiven
CN108058524B (zh) * 2017-11-27 2019-08-27 蔡镇海 一种思政教育用刻章装置
CN110027351B (zh) * 2019-04-20 2020-08-11 新沂市智创投资管理有限公司 一种用于电话机按键雕刻的定位治具
CN112293951B (zh) * 2020-10-13 2022-08-30 周立翔 一种建筑设计用绘图架

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2155092A5 (de) * 1971-10-07 1973-05-18 Doussin Gerard
DE2252512A1 (de) * 1972-10-26 1974-05-02 Kleemann Elektronik Numerische steuerung von drehtischen
DE2925612A1 (de) * 1979-06-25 1981-05-21 Aristo Graphic Systeme Gmbh & Co Kg, 2000 Hamburg Verfahren und vorrichtung zum gerasterten zeichnen mittels einer computergesteuerten zeichenmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353163A (zh) * 2018-11-30 2019-02-19 徐州幼儿师范高等专科学校 一种美术用一体式写生画板

Also Published As

Publication number Publication date
DE3683063D1 (de) 1992-02-06
FR2577476A1 (fr) 1986-08-22
FR2577476B1 (fr) 1989-11-24
EP0191702A1 (de) 1986-08-20

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