EP0083956B1 - Actuating means for an angular indexing mechanism of a parallel ruler device - Google Patents

Actuating means for an angular indexing mechanism of a parallel ruler device Download PDF

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Publication number
EP0083956B1
EP0083956B1 EP83200025A EP83200025A EP0083956B1 EP 0083956 B1 EP0083956 B1 EP 0083956B1 EP 83200025 A EP83200025 A EP 83200025A EP 83200025 A EP83200025 A EP 83200025A EP 0083956 B1 EP0083956 B1 EP 0083956B1
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EP
European Patent Office
Prior art keywords
slider
button
head
push
locking
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
EP83200025A
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German (de)
French (fr)
Other versions
EP0083956A1 (en
Inventor
Alain Bruneau
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.)
ALPIA
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ALPIA
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Publication date
Application filed by ALPIA filed Critical ALPIA
Publication of EP0083956A1 publication Critical patent/EP0083956A1/en
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Publication of EP0083956B1 publication Critical patent/EP0083956B1/en
Expired legal-status Critical Current

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    • 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
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/08—Protractor heads

Definitions

  • the invention relates to drawing devices, particularly a device for controlling the angular indexing mechanism of the control rooms of a drawing device head.
  • Mechanical indexing can be kept free either by the persistence of the operator's action, or by the installation of a lock which fulfills this function.
  • control of the indexing mechanism and the lock are, for the majority of known devices, formed by a single piece.
  • the document FR-A-1.546.129 describes a latching control mechanism for a drawing head, comprising only one slider with push-button, resting on the cover disc of the drawing head and moving in a straight line.
  • Document FR-A-2,425,947 describes a protruding group for a drawing board provided with means making it possible to block the rule carrier in a determined angular position.
  • These means consist of a pusher acting on a plate by a lever, said plate being connected to the intermediate plate by at least two diametrically opposite columns, perpendicular to the parallel planes of the plate and said plate.
  • a recess of the pusher allows the support force to be maintained by the installation of a latch in said recess
  • the object of the invention is to provide a device for controlling the indexing mechanism comprising locking means allowing, by similar maneuvers on a single push button, either a free rotation of the rules one with respect to the other in order to bring them into the chosen indexed angular position, ie maintaining these rules in said position without unexpected unlocking.
  • the control device constituted by a sliding part, situated inside the part of the head rotating with the rules, provided with guide means, this sliding part being connected by an articulation to a push button , accessible from the outside of the head and provided with hook locking means, is characterized in that the sliding part is formed by a two-wing angle iron fixed on the base of said sliding part inside a slide fixed in the head, by the fact that the articulation connecting the sliding part to the push button is constituted by a ball joint, fixed on the button, fitting into a cavity of said sliding part located near their zone of reciprocal contact, a little above the angle iron and by the fact that the locking means consist of a relief in relief of the push button located under the part of said button carrying the ball joint, the dimensions of this decro chement corresponding to a cavity inside the head in which this recess is inserted to ensure the locking of the device in the position of free rotation of the rules relative to each other on the one hand, and, by a helical spring compressed between the inner wall of the head and
  • the main advantage of such a device lies in the simplicity of operation and in the effectiveness of the locking of the control button.
  • Figure 1 shows the general arrangement of a drawing device comprising a movable rail A moving by means of a carriage on another rail 9 fixed on a work surface, so that the rail A always remains perpendicular to the rail B .
  • the device for controlling the angular indexing mechanism of the rules consists of a sliding part 1 located inside the head F and a push button 2, part of which emerges from the outer periphery of said head.
  • the part 1 is made integral with the head F by guide means consisting of an angle 100 with two wings 101, 102 (FIG. 3) fixed on the base of the sliding part and sliding in a slide 103 anchored inside the head F.
  • guide means consisting of an angle 100 with two wings 101, 102 (FIG. 3) fixed on the base of the sliding part and sliding in a slide 103 anchored inside the head F.
  • the end of the part 1, opposite the push-button 2 comprises a peg 104 on which is threaded a helical spring 3, compressed between the inner wall of the head F and the base of the peg 104 on the part 1.
  • the other end of the part 1 oriented towards the push button 2 has at its base, a cavity 105, in contrast, two parallel grooves 106, 107 having the function of receiving respectively a ball joint 200 and a hook 201 constituting a joint connecting room 1 to push-button 2.
  • the hook 201 comprises a rib 202 alternately inserted in one of the grooves 106, 107.
  • the push-button 2 further comprises, at its base, substantially parallel to that of the part 1, a relief in relief 204 which engages in a corresponding cavity (f) at the base of the head F.
  • the indexing mechanism can be maintained in the position of free rotation of the rulers by an additional pressure V exerted towards the work surface, so that the rib 202 comes out of the groove 106 to be inserted in the groove 107 and that the button -pusher 2 is articulated on the ball 200, while remaining duly connected to the part 1 by the hook 2 until the recess 204 engages in the cavity f of the head F, thus locking the mechanism.
  • the pressure P exerted on the push button 2 can then be released, the indexing mechanism is locked by the action of the spring 3 which maintains the step 204 in the cavity f.
  • the respective positions of the ball joint 200 and the recess 204 are calculated such that the action of the spring 3 forms a self-locking torque which prevents any uncontrolled release.

Description

L'invention concerne les appareils à dessiner, particulièrement un dispositif de commande du mécanisme d'indexage angulaire des régies d'une tête d'appareil à dessiner.The invention relates to drawing devices, particularly a device for controlling the angular indexing mechanism of the control rooms of a drawing device head.

Pour faire pivoter les règles portées par une tête d'appareil à dessiner il faut agir sur un élément de commande, se présentant sous différentes formes connues, qui libére l'indexage mécanique des angles remarquables.To rotate the rules carried by a drawing apparatus head, it is necessary to act on a control element, having various known forms, which frees the mechanical indexing of the remarkable angles.

L'indexage mécanique peut être maintenu libre soit par la persistance de l'action de l'opérateur, soit par la mise en place d'un verrou qui remplit cette fonction.Mechanical indexing can be kept free either by the persistence of the operator's action, or by the installation of a lock which fulfills this function.

Pour retrouver l'indexage sur un angle remarquable, il faut, soit que l'opérateur cesse son action, soit qu'il enléve le verrou.To find the indexing on a remarkable angle, it is necessary, either that the operator stops its action, or that it removes the lock.

La commande du mécanisme d'indexage et le verrou sont, pour la majorité des appareils connus, formés par une seule et même pièce.The control of the indexing mechanism and the lock are, for the majority of known devices, formed by a single piece.

Le document FR-A-1.546.129 décrit un mécanisme de commande à enclenchement pour tête à dessin, ne comportant qu'un curseur avec poussoir, reposant sur le disque de couverture de la tête à dessin et se déplaçant en ligne droite.The document FR-A-1.546.129 describes a latching control mechanism for a drawing head, comprising only one slider with push-button, resting on the cover disc of the drawing head and moving in a straight line.

Le document FR-A-2.425.947 décrit un groupe rapporteur pour planche à dessiner pourvu de moyens permettant de bloquer le porte-règles dans une position angulaire déterminée. Ces moyens sont constitués par un poussoir agissant sur une plaquette par un levier, ladite plaquette étant reliée au plateau intermédiaire par au moins deux colonnes diamétralement opposées, perpendiculaires aux plans parallèles de la plaquette et dudit plateau. Un décrochement du poussoir permet le maintien de la force d'appui par la mise en place d'un loquet dans ledit décrochementDocument FR-A-2,425,947 describes a protruding group for a drawing board provided with means making it possible to block the rule carrier in a determined angular position. These means consist of a pusher acting on a plate by a lever, said plate being connected to the intermediate plate by at least two diametrically opposite columns, perpendicular to the parallel planes of the plate and said plate. A recess of the pusher allows the support force to be maintained by the installation of a latch in said recess

Le but de l'invention consiste à réaliser un dispositif de commande du mécanisme d'indexage comportant des moyens de verrouillage permettant, par des manoeuvres similaires sur un bouton-poussoir unique, soit une libre rotation des règles l'une par rapport à l'autre afin de les amener dans la position angulaire indexée choisie, soit le maintien de ces règles dans ladite position sans déverrouillage inopiné.The object of the invention is to provide a device for controlling the indexing mechanism comprising locking means allowing, by similar maneuvers on a single push button, either a free rotation of the rules one with respect to the other in order to bring them into the chosen indexed angular position, ie maintaining these rules in said position without unexpected unlocking.

Le dispositif de commandee selon l'invention, constitué par une pièce coulissante, située à l'intérieur de la partie de la tête tournant avec les règles, munie de moyens de guidage, cette pièce coulissante étant reliée par une articulation à un bouton-poussoir, accessible à l'extérieur de la tête et pourvu de moyens de verrouillage par décrochement, est caractérisé par le fait que la pièce coulissante est formée d'une cornière à deux ailes fixée sur la base de ladite pièce glissante à l'intérieur d'une coulisse fixée dans la tête, par le fait que l'articulation reliant la pièce coulissante au bouton-poussoir est constituée par une rotule, fixée sur le bouton, s'insérant dans une cavité de ladite pièce coulissante située à proximité de leur zone de contact réciproque, un peu au-dessus de la cornière et par le fait que les moyens de verrouillage sont constitués par un décrochement en relief du bouton-poussoir situé sous la partie dudit bouton portant la rotule, les dimensions de ce décrochement correspondant à une cavité de l'intérieur de la tête dans laquelle ce décrochement s'insère pour assurer le verrouillage du dispositif dans la position de libre rotation des règles l'une par rapport à l'autre d'une part, et, par un ressort héicoïdal comprimé entre la paroi intérieure de la tête et la base d'un piton fiché dans la pièce coulissante, d'autre part, de façon qu'une pression complémentaire exercée sur le bouton-poussoir et dirigée vers le plan de travail, crée, par l'action du ressort, un couple autoverrouillant qui interdit tout dégagement incontrôlé du décrochement hors de la cavité.The control device according to the invention, constituted by a sliding part, situated inside the part of the head rotating with the rules, provided with guide means, this sliding part being connected by an articulation to a push button , accessible from the outside of the head and provided with hook locking means, is characterized in that the sliding part is formed by a two-wing angle iron fixed on the base of said sliding part inside a slide fixed in the head, by the fact that the articulation connecting the sliding part to the push button is constituted by a ball joint, fixed on the button, fitting into a cavity of said sliding part located near their zone of reciprocal contact, a little above the angle iron and by the fact that the locking means consist of a relief in relief of the push button located under the part of said button carrying the ball joint, the dimensions of this decro chement corresponding to a cavity inside the head in which this recess is inserted to ensure the locking of the device in the position of free rotation of the rules relative to each other on the one hand, and, by a helical spring compressed between the inner wall of the head and the base of a peg inserted in the sliding part, on the other hand, so that an additional pressure exerted on the push button and directed towards the work surface, creates, by the action of the spring, a self-locking torque which prevents any uncontrolled disengagement of the drop out of the cavity.

Le principal avantage d'un tel dispositif réside dans la simplicité de manoeuvre et dans l'efficacité du verrouillage du bouton de commande.The main advantage of such a device lies in the simplicity of operation and in the effectiveness of the locking of the control button.

D'autres avantages ressortiront de la description d'une forme de realisation faite à titre d'exemple preférentiel mais non limitative et du dessin dans lequel

  • -La figure 1 est une vue d'ensemble de l'appareil à dessiner,
  • - La figure 2 est une coupe selon II-II de la figure 1,
  • - La figure 3 est une coupe selon III-III de la figure 2,
  • - La figure 4 est une vue du dispositif déverrouillé,
  • - La figure 5 est une vue du dispositif verrouillé
Other advantages will emerge from the description of an embodiment made by way of preferential but nonlimiting example and from the drawing in which
  • FIG. 1 is an overall view of the drawing apparatus,
  • FIG. 2 is a section on II-II of FIG. 1,
  • FIG. 3 is a section on III-III of FIG. 2,
  • FIG. 4 is a view of the unlocked device,
  • - Figure 5 is a view of the locked device

La figure 1 montre la disposition générale d'un appareil à dessiner comportant un rail mobile A se déplaçant au moyen d'un chariot sur un autre rail 9 fixé sur un plan de travail, de façon que le rail A reste toujours perpendiculaire au rail B.Figure 1 shows the general arrangement of a drawing device comprising a movable rail A moving by means of a carriage on another rail 9 fixed on a work surface, so that the rail A always remains perpendicular to the rail B .

Un appareil à dessiner C fixé sur un chariot D, portant des régies E pivotant autour d'une tête F, se déplace le long du rail A.A drawing device C fixed on a carriage D, carrying control rooms E pivoting around a head F, moves along the rail A.

La figure 2 représente une coupe de la tête F qui entraîne en rotation les règles E formant entre elles un angle droit.2 shows a section of the head F which rotates the rules E forming between them a right angle.

Le dispositif de commande du mécanisme d'indexage angulaire des règles est constitué par une pièce coulissante 1 située à l'intérieur de la tête F et un bouton-poussoir 2 dont une partie émerge de la périphérie extérieure de ladite tête.The device for controlling the angular indexing mechanism of the rules consists of a sliding part 1 located inside the head F and a push button 2, part of which emerges from the outer periphery of said head.

La pièce 1 est rendue solidaire de la tête F par des moyens de guidage constitués d'une cornière 100 à deux ailes 101,102 (figure 3) fixée sur la base de la pièce coulissante et glissant dans une coulisse 103 ancrée à l'intérieur de la tête F.The part 1 is made integral with the head F by guide means consisting of an angle 100 with two wings 101, 102 (FIG. 3) fixed on the base of the sliding part and sliding in a slide 103 anchored inside the head F.

L'extrémité de la pièce 1, opposée au bouton-poussoir 2, comporte un piton 104 sur lequel est enfilé un ressort hélicoïdal 3, comprimé entre la paroi intérieure de la tête F et la base du piton 104 sur la pièce 1. L'autre extrémité de la pièce 1 orientée vers le bouton-poussoir 2, comporte à sa base, une cavité 105, à l'opposé, deux rainures parallèles 106, 107 ayant pour fonction de recevoir respectivement une rotule 200 et un crochet 201 constituant une articulation reliant la pièce 1 au bouton-poussoir 2. Le crochet 201 comporte une nervure 202 altérnativement inserée dans une des rainures 106, 107. Le bouton-poussoir 2 comporte, en outre, à sa base, sensiblement parallèle à celle de la pièce 1, un décrochement en relief 204 qui vient s'engager dans une cavité correspondante (f) de la base de la tête F.The end of the part 1, opposite the push-button 2, comprises a peg 104 on which is threaded a helical spring 3, compressed between the inner wall of the head F and the base of the peg 104 on the part 1. The other end of the part 1 oriented towards the push button 2, has at its base, a cavity 105, in contrast, two parallel grooves 106, 107 having the function of receiving respectively a ball joint 200 and a hook 201 constituting a joint connecting room 1 to push-button 2. The hook 201 comprises a rib 202 alternately inserted in one of the grooves 106, 107. The push-button 2 further comprises, at its base, substantially parallel to that of the part 1, a relief in relief 204 which engages in a corresponding cavity (f) at the base of the head F.

En exerçant une pression P orientée parall*élément au plan de travail de la table à dessiner (figure 4), la pièce 1 glisse dans la coulisse 103 et comprime le ressort 3 contre la paroi de la tête F: le mécanisme dindexage 1,2 est dégagé et la rotation des règles devient libre. En relâchant le poussoir 2, le ressort 3 repousse le dispositif de commande, c'est-à-dire la pièce 1 reliée au poussoir par l'articulation précitée et le mécanisme d'indexage interrompt la rotation des règles. La pièce 1 et le bouton-poussoir 2 étant parfaitement reliés par le crochet 201 et la rotule 200, un verrouillage imprévu est exclu. Le mécanisme d'indexage peut être maintenu en position de rotation libre des règles par une pression complémentaire V exercée vers le plan de travail, de façon que la nervure 202 sorte de la rainure 106 pour s'insérer dans la rainure 107 et que le bouton-poussoir 2 s'articule sur la rotule 200, tout en restant dûment relié à la pièce 1 par le crochet 2 jusqu'à ce que le décrochement 204 s'engage dans la cavité f de la tête F, verrouillant ainsi le mécanisme. La pression P exercée sur le bouton-poussoir 2 peut alors être relâchée, le mécanisme d'indexage est verrouillé par l'action du ressort 3 qui maintient le décrochement 204 dans la cavité f. Les positions respectives de l'articulation à rotule 200 et du décrochement 204 sont calculées de telle sorte que l'action du ressort 3 forme un couple auto-verrouillant qui interdit tout dégagement incontrôlé.By exerting a pressure P oriented parallel * element to the work surface of the drawing table (Figure 4), the part 1 slides in the slide 103 and compresses the spring 3 against the wall of the head F: the indexing mechanism 1,2 is cleared and the rotation of the rules becomes free. By releasing the pusher 2, the spring 3 pushes back the control device, that is to say the part 1 connected to the pusher by the aforementioned articulation and the indexing mechanism interrupts the rotation of the rules. The part 1 and the push button 2 being perfectly connected by the hook 201 and the ball joint 200, an unforeseen locking is excluded. The indexing mechanism can be maintained in the position of free rotation of the rulers by an additional pressure V exerted towards the work surface, so that the rib 202 comes out of the groove 106 to be inserted in the groove 107 and that the button -pusher 2 is articulated on the ball 200, while remaining duly connected to the part 1 by the hook 2 until the recess 204 engages in the cavity f of the head F, thus locking the mechanism. The pressure P exerted on the push button 2 can then be released, the indexing mechanism is locked by the action of the spring 3 which maintains the step 204 in the cavity f. The respective positions of the ball joint 200 and the recess 204 are calculated such that the action of the spring 3 forms a self-locking torque which prevents any uncontrolled release.

Claims (2)

1. Actuating device for an angular indexing mechanism of the rulers (E) of a head (F) of a drawing apparatus (C), which comprises a slider (1) mounted within the portion of the head (F) rotating with the rulers (E), provided with means for guiding the slider (1), said slider (1) being connected through pivot means to a push-button (2) accessible from the exterior of the head and provided with means for locking by projection, characterized in that said slider comprises an angle section member (100) having two wings (101,102) and being secured to the base of said slider (1) that is slidably engaged within a slideway (103) secured in said head (F), that said pivot means interconnecting said slider (1) and said push-button (2) consist of a ball (200) fixed to said push-button and engaged in a socket- forming cavity (105) of said slider (1), said cavity (105) being located adjacent their area of mutual contact, slightly above said angle section member (100), and that said locking means consist on the one hand of a projecting portion (204) of the push-button (2), said projecting portion being situated under the push-button portion carrying said ball (200), the dimensions of said projecting portion (204) corresponding to a cavity (f) formed in said head (F) and engageable by said projecting portion (204) for locking the device in the position which permits the free rotation of the rulers (E) in relation to each other, and on the other hand of a coil spring (3) compressed between the inner wall of said head (F) and the base of a stud (104) secured to said slider (1), whereby a complementary pressure (V) exerted on said push-button (2) in the direction towards the drawing board surface is generating under the force of said coil spring (3) a self-locking torque safely preventing any uncontrolled disengagement of said projection portion (204) from said cavity (f).
2. Control device according to claim 1, characterized in that the push-button (2) comprises on its face contacting said slider (1) and opposite said ball (200), a hook member (201) provided with a rib (202) on its free end, and that the slider (1) has formed thereon a pair of two parallel grooves (106,107) facing said hook and adapted to be engaged by turns by said rib (202) of said hook member (201 ).
EP83200025A 1982-01-11 1983-01-07 Actuating means for an angular indexing mechanism of a parallel ruler device Expired EP0083956B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8200281A FR2519586B1 (en) 1982-01-11 1982-01-11 DEVICE FOR CONTROLLING THE ANGULAR INDEXING MECHANISM OF THE RULES OF A DRAWING APPARATUS HEAD
FR8200281 1982-01-11

Publications (2)

Publication Number Publication Date
EP0083956A1 EP0083956A1 (en) 1983-07-20
EP0083956B1 true EP0083956B1 (en) 1986-03-19

Family

ID=9269855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83200025A Expired EP0083956B1 (en) 1982-01-11 1983-01-07 Actuating means for an angular indexing mechanism of a parallel ruler device

Country Status (4)

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US (1) US4486956A (en)
EP (1) EP0083956B1 (en)
DE (1) DE3362569D1 (en)
FR (1) FR2519586B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559715A (en) * 1982-09-30 1985-12-24 Walter Weglin Drafting machine
DE4025886A1 (en) * 1990-08-16 1992-02-20 Kuhlmann Praezisionsmech DRAWING HEAD FOR A DRAWING MACHINE

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE458310A (en) * 1944-05-26
DE944298C (en) * 1948-12-07 1956-06-14 Franz Kuhlmann K G Drawing head for drawing machines
DE832867C (en) * 1950-10-31 1952-02-28 Clemens Riefler Fabrik Mathem Character head
DE1190838B (en) * 1962-09-01 1965-04-08 Franz Kuhlmann K G Praez Smech Locking device on sign heads
FR1546129A (en) * 1966-12-01 1968-11-15 Schmidt & Haensch Franz Snap-in control mechanism for drawing head
DE1511477B2 (en) * 1966-12-01 1973-10-25 Fa. Franz Schmidt & Haensch, 1000 Berlin Switching mechanism for a drawing head
DE1811805B1 (en) * 1968-11-29 1970-08-27 Franz Kuhlmann Kg Praez Smecha Locking device on a character head
FR2105534A5 (en) * 1970-09-10 1972-04-28 Alpia Sa
SU543530A1 (en) * 1975-06-24 1977-01-25 Уфимский Завод Чертежных Приборов Drawing head
DE2823820A1 (en) * 1978-05-31 1979-12-06 Siemens Ag PROCESS FOR CROSSLINKING AND STABILIZATION OF RADICALLY CROSSLINKABLE POLYMERS
DE2838237C2 (en) * 1978-09-01 1981-01-29 Franz Kuhlmann Praezisionsmechanik Und Maschinenbau Gmbh & Co Kg, 2940 Wilhelmshaven Drawing head for drawing machines

Also Published As

Publication number Publication date
FR2519586B1 (en) 1988-03-18
US4486956A (en) 1984-12-11
FR2519586A1 (en) 1983-07-18
EP0083956A1 (en) 1983-07-20
DE3362569D1 (en) 1986-04-24

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