FR2652305A1

FR2652305A1 - Drawing instrument for squares and rectangles

Info

Publication number: FR2652305A1
Application number: FR8912628A
Authority: FR
Inventors: Damour Jean Francois
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-09-25
Filing date: 1989-09-25
Publication date: 1991-03-29

Abstract

The subject of the invention is an instrument for drawing squares and rectangles without the use of compasses, rulers or set squares and without the need to measure each side. The measurement is taken once only and the square or rectangle is drawn in a single action. Referring to the figure, 1 is the upper set square graduated in centimetres along each side with both zeros in the corner, 2 is the lower set square graduated in centimetres along each side with both zeros in the corner, 3 is the screw-and-nut fastener which enables the set squares to be tightened and locked relative to each other, when the desired measurement has been taken, and thus enables the desired square or rectangle to be drawn.

Description

La présente inventionsa pour objet à titre de produit industriel nouveau un instrument de traçage pour carrés et rectangle. The present invention has as its object as a new industrial product a tracing instrument for squares and rectangles.

Lorsque nous voulons tracer un carré ou un rectangle, il nous faut utiliser plusieurs instruments de traçage et de mesure. ES loccurence : compas; équerre; règle. De plus, le temps qu'on y consacrera sera plus ou moins long. Le temps de prendre la mesure indiquée, le temps de tracer le premier trait, puis letemps de mettre le deuxième trait perpendiculairement au premier et ainsi de suite I1 serait donc intéressant de disposer d'un instrument nous permettant de regrouper ces différentes opérations. When we want to draw a square or rectangle, we need to use several plotting and measuring instruments. ES loccurence: compass; square; rule. In addition, the time devoted to it will be more or less long. The time to take the indicated measurement, the time to draw the first line, then the time to put the second line perpendicular to the first and so on I1 would therefore be interesting to have an instrument allowing us to group these different operations.

L'instrument, objet de la présente invention, est très remarquable en ce qu'il regroupe ces différentes opérations en une seule, de plus les objets nommés ci-dessus seront remplacés par un seul objet. The instrument, object of the present invention, is very remarkable in that it combines these different operations in one, moreover the objects named above will be replaced by a single object.

Une forme d'exécution de l'invention est décrit ci-après à titre indicatif et nullement limitatif en se référent aux dessins annexés. An embodiment of the invention is described below by way of indication and in no way limitative with reference to the accompanying drawings.

La figure 1 est une vue d'ensemble de l'objet ( vue de dessus
La figure 2 est une coupe profilée de la pièce 1
La figure 3 est une coupe profilée de la pièce 2
La figure 4 est l'ensemble de serrage, vis écrou, qui permet de relier les pièces 1 et 2 tout en leur permettant de coulisser l'une sur l'autre
Les pièces l et 2 disposent de fentes dans lesquelles il y aura lez vis et les écrous de la figure 4. De plus, la fente de la pièce 2, comportera une rainure permettant à l'écrou de coulisser tout en lui permettant de maintenir les pièces t et 2 ensemble
L'écrou doit être carré et de même largeur que la fente limitant ainsi de fausses équerres. En resserrant la vis, les pièces l et 2 n'en forment plus qu'une, et. par la même, on peut tracer un carré ou un rectangle avec rapidité et précisi on. Figure 1 is an overview of the object (top view
Figure 2 is a profiled section of part 1
Figure 3 is a profiled section of part 2
Figure 4 is the clamping assembly, screw nut, which connects parts 1 and 2 while allowing them to slide one on the other
Parts 1 and 2 have slots in which there will be the screws and nuts of Figure 4. In addition, the slot of part 2 will have a groove allowing the nut to slide while allowing it to maintain the parts t and 2 together
The nut must be square and the same width as the slot, thus limiting false angles. By tightening the screw, parts l and 2 become one, and. In the same way, we can draw a square or a rectangle quickly and precisely.

Claims

RESELL I C AT 10N; S

10- Tracing instrument for squares and rectangles, characterized by the fact that it is a mobile object that can be moved freely on any type of media (notebook; sheet; wood wall, fabric .....) 20- Instrument according to claim 1, characterized in that the object brings together in itself all the tasks and all the different instruments necessary, when tracing a square or a rectangle (measuring the sides with a ruler, tracing the first angle with a square, measurement of other stories and plotting of other angles etc ...

30 - Instrument according to claim 1, characterized in that the object consists of two brackets which move one on the other, directly forming a square or a rec tangue 40- Instrument according to claim 3, characterized by the fact that the brackets are immobilized one relative to the other, by a screw assembly; nut, (3), when the desired quantities are identified and taken.

50- Instrument according to claim 3, characterized in that the brackets each comprise two slots (1), perm -mitting screws, nuts (3) to slide freely, hampered.

thus ning one of the two brackets while forming right angles.

6? - Instrument according to claim 4, characterized in that the nuts (3) are square in shape and just fit into the slots (1) thereby avoiding that there are false brackets.

7b- Instrument according to claim 4, characterized in that the screws (3), with elongated heads to facilitate tightening and loosening, are completed by washers 3) of diameter greater than the width of the slot (1) for thus preventing the brackets from separating.

80- Instrument according to claim 3, characterized in that the brackets are graduated in centimeters on the two cities and starting each time the graduation on the right angle.

90- Instrument according to claim 6, characterized in that the nuts (3), include kinds of pins allowing them to enter the slots (1) of the brackets, 3 while remaining blocked by the bottom.

10 - Instrument according to claim 5, characterized in that the slots (1) of the lower bracket are completed by grooves which allow the nuts (3), not to protrude below the lower bracket