FR2493568A1 - METHOD FOR REALIZING A THREE-DIMENSIONAL STRUCTURE AND PLAN FLOOR FOR IMPLEMENTING THE METHOD - Google Patents

Abstract

ACCORDING TO THE PROCESS OF THE INVENTION, A SCREEN IS PREPARED INCLUDING TWO PROJECTIONS 10, 11 PRECUT IN TWO LOCATIONS 1, 2 AND TWO SERIES OF RELIEF CURVES PRECUT INSIDE THE TWO PROJECTIONS, CURVES 11, 13, 15, 17 , 19 OF ONE OF THE TWO SERIES BEING INTERCALED BETWEEN TWO OF THE ADJACENT CURVES 10, 12, 14, 16, 18 OF THE OTHER SERIES, WE INSULATE THE PORTIONS OF A SERIES 21, 23, 25, 27 BETWEEN TWO ADJACENT CURVES AND KEEP THEM SEPARATE FROM SERVINGS 20, 22, 24, 26, 28 OF THE OTHER SERIES, ALL THE SERVINGS BEING PLACED ON TOP OF THE OTHERS. THE INVENTION ALLOWS THE ACHIEVEMENT OF UTILITY AND ORNAMENTAL OBJECTS.

Description

The present invention relates first of all to a process

  thimble for making a three-dimensional structure, decorated

mental or utilitarian.

  It is above all a process for the attention of

  fants, intended to awaken their manual qualities, and which

  does not neglect the development of their perception

  spatial aspect of things, nor of their faculties of association

  tion. It is also a question of offering these children the means to carry out by themselves a material, ornamental or utilitarian work, and to instill in them the taste for a job well done.

  To this end, the present invention relates to a method

  thimble for making a three-dimensional structure, character-

  terrified by the fact that this structure is projected in at least one determined direction, to obtain at least one

  projection on a flat surface, we trace on this surface

  this and inside the projection obtained from the curves representative of the relief of the structure, this projection and these relief curves are precut, the different portions of the surface included between two of the relief curves are isolated, these portions are moved away two to each other according to the initial projection direction,

  these portions are kept separate in their relative position

  tive using appropriate separation means, then these portions are fixed in this position to reconstitute the

structure to be produced.

  Thanks to the method of the invention, the child must at least combine the relief portions of the structure to be produced two by two, superimpose them properly in

  space and fix them in this position. It is practi-

  only a puzzle in space, o however, instead of having to fit two pieces into each other on a

  flat surface, practically two superimposed

  one above the other, with interposition of

  separation means, to reconstitute the relief.

  The invention makes it possible to produce all kinds of objects, useful first, such as ashtrays, vases, bowls, then ornamental, such as animal-shaped statuettes, for example

  In a preferred implementation of the method of the invention,

  vention, we project at least in two distinct places on the same flat surface, in at least one direction

  determined, the structure to be produced and we trace, inside

  of the two projections obtained, respectively two series of relief curves, the curves of one of the two series of curves being able to be inserted between two of the

  adjacent curves of the other series, to obtain two se-

  lines of relief portions, and the portions of one of the two series of rope portions are used means for separating the portions of the other series In this case, and with a single flat surface, the structure can easily be reconstructed. realize

without the slightest fall.

  The invention also relates to a canvas for mid

  use of the invention process, characterized in that it is traced there, at least in two separate places, two projections, in at least one determined direction,

  of the structure to be produced and, inside the two pro-

  jections, two series of relief curves, respectively, the curves of one of the two series can be interposed

  between two of the adjacent curves in the other series.

  In a preferred embodiment of the canvas of the invention, the projections and the relief curves are precut. It is advantageous that the relief curves are

contour lines.

  The invention will be better understood using the

  following description of a particular embodiment

  of the outline of the invention and the implementation of the pro-

  assigned of the corresponding invention, with reference to the accompanying drawing, in which: - Figure 1 shows a plan view of the canvas of the invention, and - Figure 2 shows a perspective view of

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  the structure made from the canvas of Figure 1.

  Figure 1 shows a canvas for making a structure or, better, a half-structure, of fish in relief. This canvas is divided into two parts 1 and 2 each comprising a series of precut curves obtained by

  projection, in a direction perpendicular to the surface

  this canvas, fish-shaped structure to reali-

  ser, this structure being, for the two projections considered

  layered, arranged in the same spatial orientation. In the case shown, it is a lateral representation of the fish. Part 1, at the bottom of the figure, has an external curve 10, corresponding to the external contour of the fish, and internal curves. At the level of the body of the fish, for example, curves 12, 14, 16 are drawn,

  18 which will constitute, once the three-dimensional structure

  nelle performed, level curves or edges. These courses

  bes are substantially equidistant. They delimit two by two of the portions or bands of relief 20, 22, 24, 26, the central curve 18 alone delimiting a portion of

relief 28.

  Part 2, at the top of the figure, has a series of equally equidistant curves, for example 11, 13, 15, 17, 19 at the level of the body of the fish, which go

  once the three-dimensional structure is complete,

  level lines respectively interspersed between

  two of the contour lines in part 1 of the canvas. Ain-

  if, the curve 11 of part 2 is intended to be inter-

  wedged between curves 10 and 12 of part 1, the

  be 13 of part 2 between curves 12 and 14 of part

  tie 1, as shown in phantom in part 1

of the figure.

  Curves 11, 13, 15, 17, 19 of part 2 of the chart

  nevas delimit two by two of the relief strips 21, 23, 25, 27 intended to be interposed between two relief strips from part 1 of the canvas or, in other words, to be respectively superimposed on a strip of 249356o ' 8

  relief of part 1 of the canvas and corresponding to a level

lower calf.

  The canvas shown in Figure 1 is characterized in that a relief or level curve of a part can always be interposed between two adjacent curves

  on the other side, so that the portion or strip of re-

  lief or level corresponding to the intermediate curve

  can rest on the strip corresponding to the two courses

  bes adjacent and thus raise the structure from a height

  corresponding to the thickness of the canvas.

  In this regard, we considered a framework made up of two

  parts. But it is clear that the invention is not limited to

  tée to such a canvas and that one could consider a canvas formed of three parts and more. In this case, between two

  adjacent curves of the same part could intersect

  ler two or more curves belonging respectively to

  two other parts, with the effect of increasing more

  the relief of the object to be produced.

  Furthermore, in the represented case, we have considered

  substantially equidistant contour lines. The invention

  tion of course is not limited to such a characteris-

  tick. In the case where these curves are effectively equal

  distant, the relief of the three-dimensional structure

  edged is of the conical type with straight generator. If one wishes to obtain a spherical or other relief, it suffices to

  provide non-equidistant contour lines, being

  stretched as the thickness of each intermediate level in the

  final structure remains equal to the thickness of the canvas.

  In addition, the precut curves on the canvas of the invention are indeed intended to form level curves of the final structure produced, due to the fact that the canvas is planar. It is clear that these curves of

  level do not necessarily correspond to curves of ni-

  calf from the basic projected structure, and that's why

  they were designated under the name of relief curves.

  These relief curves can obviously be curves

  level, i.e. extending in parallel planes

C 4 97e5-

  them, but this is not a limiting condition of the invention.

  tion. On the other hand, all the contour lines of the represented canvas are substantially homothetic to each other. Again, this is not an imperative condition. In addition, the projection of the structure to be produced in space, in the case considered, was carried out according to

  a direction perpendicular to the canvas. One could imagine

  Also an oblique projection. One could also foresee, in particular cases, that a canvas according to

  the invention comprises a first series of pro-

  jection following a direction and a second series of courses

  bes of projection in another direction.

  Finally, the invention is naturally not limited to the production of structures having only one external contour. It would thus be possible to provide for hollow objects, drilled or perforated, having at least two contours

  exteriors, profiles or templates, such as a torus.

  In this case, one of the relief or level curves of-

  would come a second projection in the sense defined above.

  From the canvas which was described above, and for the realization of the structure, we isolate the level strips of the two parts of the canvas, we take the strip 20 of

  part 1, therefore distant from strip 22 of this same part

  tie, the strip 21 of part 2 is vertically superimposed on the strip 20, then the strip 22 of part 1 is superimposed in the same way on the strip 21 of part 2 which thus keeps the two strips 20 and 22 of the

  part 1, and so on, to get the tri-

  of the body of the fish. These operations are repeated for the head, the tail and the fins of the fish, before

  to fix in position all the relief bands of the fish.

  Attaching the level strips can be advantageous

  cement made, the canvas can be offered,

  for example, cardboard, wood or plastic. The diff-

  ferent level strips can finally be advantageously painted.

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Claims (5)

  1. Method for producing a three-dimensional structure   sional, characterized by the fact that this structure is projected, in at least one determined direction, to obtain at least one projection on a flat surface, we trace on this surface and inside the projection   obtained from curves representative of the relief of the structure   ture, we pre-cut this projection and these curves of re-   lief, we isolate the different portions of the surface   taken between two of the relief curves, these portions are removed two by two from one another according to the direction of initial projection, these portiîons are kept separate   in their relative position using separating means   tion appropriate9 then these portions are fixed in this po-   sition to reconstruct the structure to be produced.   2. Method according to claim 1, in leqae1 we project at least in two separate places on the same flat surface, in at least one determined direction, the structure to be produced, and we trace, inside the two   projections obtained, respectively, two series of courses   bes in relief, the curves of one of the two series of curves   bes can be inserted between two curves adJa-   centes from the other series, to get two series of port-   relief, and we use the portions of one of the   two sets of portions as a means of separating the the other series.   3. Canvas for the implementation of the method according to claim 2, characterized in that it is traced there at least in two distinct places two projections, melon at least one determined direction, of the structure to   o realize and, inside the two projections, two se-   lines of relief curves, respectively, the curves of one of the two series that can be inserted between two   adjacent curves from the other series.   4. Canvas according to claim 3, wherein the   projections and relief curves are precut.   5. Canvas according to one of claims 3 and 4,   in which the relief curves are advantageously contour lines.