WO1994001197A1

WO1994001197A1 - Articulated link fabric and method of manufacture

Info

Publication number: WO1994001197A1
Application number: PCT/FR1992/000665
Authority: WO
Inventors: André HENNEGRAVE
Original assignee: Hennegrave Andre
Priority date: 1992-07-10
Filing date: 1992-07-10
Publication date: 1994-01-20

Abstract

A method of manufacturing an articulated link fabric is described in which oval rings are folfed at their center to form links (1) which can be inscribed in a square. Said method is characterized in that rows of links (3a/3b/3c) are formed by staggering said links (1) corner to corner, at 45 with respect to a line passing through the corners of said links. Pins (6/7) at least as long as the width of the fabric are positioned perpendicularly to said row in the gaps between the U-shaped portions of the links so that the latter pivot with respect to each other. Application in manufacturing items of jewelry, or filter systems.

Description

Articulated mesh fabric and its manufacturing process.

DESCRIPTION

The present invention relates to an articulated mesh fabric and its manufacturing process.

The technical sector of the invention is that of jewelry and more generally that of industry for the manufacture of fabrics with metallic meshes or in rigid or semi-rigid synthetic materials. Knitted fabrics made from metallic threads or interlaced plastic material, of the mesh type or the like, are perfectly known.

We also know sieve type fabrics made from son whose mesh is spot welded. A fabric of this kind is described in patent GB.A.826,218.

Also known are "fabrics" composed of "meshes" in the form of juxtaposed crowns connected to each other which constitute a perforated screen. Such a screen is described in patent US.A.2 390983 •

According to the invention, a new fabric is proposed, the meshes of which are of variable section and / or articulated and which can find various applications.

A first objective of the invention is to produce fabrics with articulated meshes in precious metals, for the use of articles of jewelry and / or jewelry. Another objective of the invention is to produce fabrics with articulated meshes in rigid or semi-rigid plastic material for the implementation of articles accessory to clothing, such as in particular adornments or necklaces, belts, or other ... Another objective is to produce mesh fabrics of variable and articulated section, from common metals, or from rigid or semi-rigid plastic material in order to produce screens or regulating filters making it possible to control the passage various substances, such as powdery or granular, liquid or pasty products.

These objectives are achieved by the articulated mesh fabrics comprising a plurality of oval rings connected to each other and arranged in several rows, characterized in that said rings are folded in the middle and comprise curvilinear U-shaped portions substantially parallel two by two each of said rings inscribing in a square, that said rings of 5 each row are arranged at ^ 5 ° with respect to a line passing through the angles of said squares and angle against angle, to delimit therebetween locations capable of receiving the rings of the adjacent rows and in that the rings of said rows of rings are connected together and articulated around of perpendicular cylindrical axes

10 to said rows and parallel to each other, which axes pass through said curvilinear parts of the rings.

In one embodiment of such a fabric, the curvilinear U-shaped parts adjacent to a ring are in opposition to one another and provide a space between them through which a

15 axis, so that one of said U-shaped parts goes around said axis from above, while the other goes around it from below.

Said rings are staggered and the curved U-shaped parts of the rings of one row of rings are in contact with the curved U-shaped parts of another row. The U-shaped parts of two

20 adjacent rows of rings are in opposition and provide between them spaces through which said axes pass, so that the curvilinear U-shaped parts of a row bypass said axes from above and that the curvilinear U-shaped parts of an adjacent row bypass said axes from below.

Said axes are in contact with said U-shaped curved parts of the rings.

In a preferred embodiment, the rings of each row of rings are crossed by two axes.

In another embodiment, the rings located at least

30. one of the ends of the fabric, is crossed by an axis.

The rows of rings located along the lateral edges of the fabric are joined to the axes which pass through them.

In another embodiment of the fabric according to the invention, with mesh of variable section, said fabric has first rows

35 of rings whose rings are each secured to an axis and second rows of rings located between said first rows or on the side of these rows, whose rings are each secured to another axis passed through the rings of said first rows and mounted free and in rotation to allow relative movement of said first and second rows in the transverse direction of the fabric. The rings of said first and second rows are spaced from each other. The rings of said first and second rows are spaced from each other, at a pitch greater than the transverse size of a ring. In the extreme position of said second rows, close to said first rows, they are placed in staggered rows in the locations existing between said rings of said first rows and vice versa.

Said second rows are positioned between said first rows or distant from these rows, to leave a space between said first and second rows.

The manufacturing process for the implementation of such an articulated mesh fabric according to which rings of oval shape are used, characterized by the fact that said rings are folded in their middle, so as to form rings inscribing in a square and comprising curvilinear U-shaped portions substantially parallel two by two, which are formed rows of rings by positioning the rings in staggered rows, angle against angle and at 45 ° relative to a line passing through the angles of said rings and in that, perpendicular to said rows, axes of a length at least equal to the width of the fabric are passed, in the spaces reserved between said U-shaped parts of the rings, in order to connect them together and articulate them, and in that said axes are then secured to the rings of the rows of rings situated at the edge and laterally to said fabric.

The method according to the invention for the implementation of such a mesh fabric of variable section, according to which rings of oval shape are used is characterized by the fact that said rings are folded in their middle so as to form rings inscribed in a square and having curvilinear U-shaped portions substantially parallel two by two, which are formed first rows of rings by positioning the rings angle against angle and at 45 ° relative to a line passing through the angles of said rings and leaving a space between said first rows, greater than the transverse size of a ring, in that one forms line passing through the angles of said rings, and opposite the locations delimited by the rings of said first rows and in that, perpendicular to said first and second rows, axes of a length at least equal to the width of the fabric are passed through reserved spaces between said curvilinear U-shaped parts of the rings, to connect them together and articulate them, and in that the rings of said first and second rows are secured to one axis in two per ring, to allow relative movement of said first and second rows of rings and then positioning and / or securing said second rows between said first rows and / or on the side of these rows.

The result of the invention is an articulated mesh fabric for in particular the manufacture of articles of jewelry and / or fine jewelry. In this application, precious stones are enshrined in the meshes formed by said rings.

The concept of such a fabric in its production with variable section and articulated meshes allows it to be applied to the filtration of pulverulent or granular, liquid or pasty products.

In this application, the relative displacement of the rows of rings makes it possible to vary the section of the meshes situated between said rows to adapt it according to the products to be filtered.

Finally and, in the case where the fabric is made of synthetic material, the rings can be obtained by molding, for example by pressure molding or by injection according to a technique perfectly known to those skilled in the art.

Other advantages and characteristics of the invention will emerge further on reading the following description with reference to the appended drawings in which:

- Figure 1 is a perspective view on a large scale of a ring used in the composition of an articulated mesh fabric according to the invention;

- Figure 2 is a top view of an oval ring before folding in order to achieve the ring of the previous figure;

- Figure 3 is a sectional view of said oval ring along line III III of Figure 2;

- Figure 4 is a top view of the ring of Figure 1;

- Figure 5 is a sectional view along line VV of the Figure 4;

- Figure 6 is a sectional view along line VI VI of Figure 4; Figure 7 is a top view of a row of rings making up said fabric disposed angle to angle at 4 °;

- Figure 8 is a top view of two rows of rings making up said fabric in a staggered arrangement;

- Figure 9 is a partial top view of a fabric with contiguous articulated meshes staggered; - Figures 10 and 11 are top views of rows of spaced rings whose rings are secured to axes used in the composition of a variable section mesh fabric;

- Figure 12 is a partial top view of a hinged mesh fabric and variable section. Reference is first made to FIGS. 1 to 6 of the drawing.

For the implementation of an articulated mesh fabric according to the invention, rings 1 of oval shape are first produced. In the case where the fabric is metallic from a noble material such as gold or silver for example for the production of pieces of jewelry or even ordinary metals such as galvanized steel or 1 ' stainless steel for the manufacture of filter and / or regulating fabrics, the metal is drawn or drawn in order to obtain a profile of a circular cross section 2, or of an outline of a generally circular shape, the diameter of which is chosen according to the destination of the fabric.

For the implementation of such fabrics, in particular intended for industrial use, commercial oval rings can be used.

Said rings 1 are then folded in the middle, that is to say perpendicular to their length 1, and rings are thus produced which are inscribed in a square (FIG. 4) and comprising (FIG. 1) curvilinear parts 1a / lb-lc / ld in U, parallel or substantially parallel two by two, so that the parts la / lb are in opposition to the parts lc / ld.

In top view (Figure 4), said rings thus have four angles le / lf equidistant from their center 1g.

For the implementation of an articulated mesh fabric with a fixed mesh section, rows of rings 3a / 3b / 3c are produced which are place side by side. The rings are aligned angle against the angle le (Figure 7) and inclined at an angle α of 45 ° relative to a line 4 passing through the angles lf located on one side of the rings, which line 4 is parallel to a line XXi on which are aligned said angles on. The angles lf are themselves aligned on lines YYi which are mutually parallel and perpendicular to said line XXi.

Said rows of rings 3a / 3b / 3c determine the length of the fabric.

The rings 1 of a row of rings 3b delimit between them locations 5 capable of receiving the rings of adjacent rows 3 & / 3c.

FIG. 8 represents two rows of rings 3a / 3b, the rings of which are thus staggered.

Figure 9 partially shows a top view of an articulated mesh fabric according to the invention. The rows of rings 3a / 3b / 3c are arranged as described above and side by side, the rings being staggered.

The articulation of the rings 1 is carried out around axes 6/7 at the rate of two axes for most of the rings that make up the fabric.

Said axes 6/7 are perpendicular to said rows 3a / 3b / 3c are parallel to each other and their ends 6a / 7a located on the lateral edges of the fabric are cut for example by bevel parallel to the parts of rings, as shown to the right of Figure 9-

The section of the axes 6/7 is such that they are in contact with the parts of rings la / lb-lc / ld between which they are engaged. The cooperation of the rings 1 and the axes 6 with a view to their assembly and their articulation is exposed on the basis of a group of three rings referenced I1 / I2 / I3. The axis 6 located at the bottom of the fabric part of FIG. 9 is bypassed from above by the curvilinear U-shaped part lb of the rings I1 / I3 of the rows \ a ./_ c and is bypassed from below by the part curvilinear neighbor of said rings

11 / 13- The axis 7 located immediately above the axis ό is bypassed from below by the curvilinear U-shaped part of the rings I1 / I3 of said rows 3a / 3c and is bypassed from above by the parts the curvilinear lines of said rings I1 / I3. Said axis 7 also passes through the ring 12 which composes the intermediate row 3b nested between said rows _, a ./__ c. This axis 7 is circumvented from below by the curvilinear U-shaped part of the ring 12 and from above by the neighboring part la of said ring 12. By way of example, FIG. 9 represents a part of fabric of which one end is terminated by a ring 14 crossed only by an axis 6, which is bypassed from above by the curvilinear U-shaped part lb and from below by the curvilinear U-shaped part neighboring ld of said ring 14. Maintaining the axes 6/7 in the transverse direction is produced by spot welding 8 or by capillary action, by joining said axes to the curvilinear U-shaped parts lb / ld of the rings which make up the row of edges 3a.

The rings 1 of the rows 3b / 3c thus mounted, are articulated around the axes 6/7 in the manner of hinges.

The curvilinear U-shaped parts la / le of the rings of a row 3a are thus in contact with the curvilinear parts lb / lc of another row 3b. The parts of row 3a. - ^c of row 3b and the of row 3, lb of row 3 being in contact and in opposition to each other. Figures 10 to 12 show an articulated mesh fabric according to the invention, according to another embodiment and in which spaces are left between certain rows of rings.

Applied to fabrics intended for the manufacture of articles of jewelry or jewelry, this concept makes it possible to obtain decorative effects.

Applied to fabrics intended for filtration, this concept makes it possible to create meshes of variable section depending on the materials to be filtered.

In either case, the fabric is implemented in the following way: as in the fabric described above (Figure 10), the rings 1 are aligned at 45 ° angle against the angle le to form rows d '3d / 3e rings parallel to each other.

Said rows 3d / 3e are spaced from each other at a regular pitch p. Axes 9 perpendicular to said rows are passed through the curvilinear parts U adjacent la / le, so that they are bypassed from above by said curvilinear parts la and from below by said curvilinear parts le. The axes 9 are secured to said rings 1 by welding points 10 or by capillary welding.

FIG. 11 represents other rows of rings - 3f73 / 3h whose rings are aligned at 45 ° angle against the angle le, in the same way as those of FIG. 10. Said rows 3f / 3g / 3h are parallel between them and distant from each other by the value of a step p equal to that which separates the rows of rings 3d / 3e of figure 10.

The rings of said rows 3f / 3g / 3h are crossed by axes 11, which axes are bypassed from above by the curvilinear U-shaped parts of the rings and from below by the curvilinear parts neighboring it. As for rows 3d / 3e of FIG. 10, said axes are welded by points or by capillary action 12 to said U-shaped curved parts lb / lc of said rings.

To allow the manufacture of such a fabric, the rows of rings 3e to 3 are first formed according to the representation in FIG. 12. As shown in the drawing, the second rows 3d / 3e are for example brought closer to the first rows 3f / 3g in a staggered arrangement. The axes 9 / H are then passed through the curvilinear U-shaped parts of the rings of rows 3e to 3b and are then welded as described above.

The consequence of this arrangement is that the axes 9 of the 3d / 3e rings are free to slide and rotate in the rings of the rows 3f / 3g / 3h in the passage delimited by said neighboring curvilinear U-shaped parts la / ld of said rings. Similarly, the axes 11 of the rings of rows 3f / 3g / 3h are free to slide and rotate in the rings of rows 3d / 3e in the passage delimited by said curvilinear U-shaped parts adjacent lc / lb of said rings.

It is understood that, by the relative displacement of the rows 3 373e- 3f / 3g / 3b, one can at will vary the distance d which separates said rows of rings and correlatively the section S of the meshes delimited by the axes 9/11. the curved portions ld / lb of the rings of rows 3f / 3g / 3h and the curved portions la / ld of rows 3d / 3e, or else said axes 9 / H. the curved parts lc / lb of the rings of rows 3d / 3e and the curved parts la / le of the rings 3f / 3g / 3h.

Section S is maximum when the rings of rows 3d / 3e are in contact on one side or the other, rows 3f / 3g / 3h. The section S is reduced by half when rows 3d / 3e are in the middle of rows 3f / 3g-3g / 3h.

The relative displacement of the rows 3d / 3e-3f / 3g / 3 ^h makes it possible to obtain two ranges of sections on either side of said rows. In its application to articles of jewelry, the relative position of the rows 3d / 3e- 3f / 3g / 3h is defined according to the desired decorative effect. This position is then fixed by any means making it possible to preserve the articulation of the 9 / H axes in the rings. One way is to wedge on the axes, for example by welding, small stop rings 13-

In its application to filtering systems, the adjustment of the relative position of said rows can for example be obtained by means of cams wedged on a shaft comprising a control member and acting on the axes 9 / - subjected to the action of springs ( not shown).

Of course, without departing from the scope of the invention, the parts which have just been described by way of example, may be replaced by a person skilled in the art by equivalent parts fulfilling the same function.

Claims

1. Articulated mesh fabric comprising a plurality of oval rings (1) connected to each other and arranged in several rows, characterized in that said rings (1) are folded in the middle and comprise curvilinear U-shaped parts substantially parallel two by two (la/lb-lc/ld), each of said rings fitting into a square, that said rings (1) of each row (3a to 3h) are arranged at 45° relative to a line ( 4) passing through the angles (lf) of said squares and angle (le) against angle (le), to delimit between them locations (5) capable of receiving the rings (1) of adjacent rows and in that the rings of said rows rings (3a to 3h) are connected together and articulated around cylindrical axes (6/7-9/H) perpendicular to said rows and parallel to each other, which axes pass through said curvilinear parts (la to ld) of the rings.

2. Fabric according to claim 1, characterized in that the neighboring U-shaped curvilinear parts (la/lc-ld/lb) of a ring are in opposition to each other and provide between them a space through which passes an axis (6/7), so that one of said U-shaped parts (la/lb) circumvents said axis from above, while the other (lc/ld) circumvents it from below.

3. Fabric according to any one of claims 1 and 2, characterized in that the rings (1) are arranged in a staggered manner and that the curvilinear U-shaped parts (la/le) of the rings of a row of rings (3a ) are in contact with the curvilinear U-shaped parts (lb/lc) of another row (3b) and that said U-shaped parts of two adjacent rows of rings (3a/3b) are in opposition and provide spaces between them to through which said axes (6/7) pass. such that the curvilinear U-shaped parts (la/lb) of a row of rings (3a) bypass said axes (6/7) from above and the curvilinear U-shaped parts (lc/ld) of a adjacent row (3b) bypass said axes from below.

4. Fabric according to any one of claims 1 to 3. characterized in that said axes (6/7) are in contact with said U-curved parts (la to ld) of the rings.

5. Fabric according to any one of these claims 1 to 4, characterized in that the rings (11/12/-") of each row of rings (3a/3b/3c) are crossed by two axes (6/7).

6. Fabric according to any one of claims 1 to 4, characterized in that the rings (1/4) located at at least one of the ends of the fabric are crossed by an axis (6).

7- Fabric according to any one of claims 1 to 6, characterized in that the rows of rings (3a) located along the lateral edges of the fabric are secured to the axes (6/7) which pass through them.

8. Fabric according to any one of claims 1, 2 and 4, characterized in that it comprises first rows of rings (3f/3g/3h) whose rings are each secured to an axis

(9) and second rows of rings (3d/3e) located between said first rows (3f/3g/3h) or on the side of these rows, the rings of which are each secured to another axis (11) passed through the rings of said first rows (3f/3g/3h) and mounted free and in rotation to allow relative movement of said first (3f/3g/3h) and second (3d/3e) rows in the transverse direction of the fabric, and in this that the rings of said first and second rows are spaced from each other. “Fabric according to claim 8, characterized in that the rings of said first (3f/3g/3h) and second (3d/3e) rows are spaced from each other, according to a pitch (p) greater than the transverse bulk d 'a ring, and in that in the extreme position of said second rows (3d/3e), brought closer to said first rows (3f/3g/3h), they are placed staggered in the locations (5) existing between said rings of said first ranks and vice versa.

10. Fabric according to any one of claims 8 and 9. characterized in that said second rows (3d/3e) are positioned between said first rows (3f/3g/3h) or distant from these rows, to leave a space ( d) between said first and second rows.

11. Manufacturing method for using the articulated mesh fabric according to any one of claims 1 to 7. according to which oval-shaped rings are used, characterized in that said rings are folded in the middle, so as to form rings (1) fitting into a square and comprising U-shaped curvilinear parts substantially parallel in pairs (la/lb-lc/ld), that we form rows of rings (3a/3b/3c) by positioning the rings (1) in a staggered manner, angle (le) against (le) and at 45° relative to a line (4) passing through the angles (lf) of said rings and in that, perpendicular to said rows (3a/3b/3c). we pass axes (6/7) of a length at least equal to the width of the fabric, in the spaces reserved between said U-shaped parts (la to ld) of the rings, to connect them together and articulate them together, and in that said axes (6/7) are then secured to the rings of the rows of rings (3a) located at the edge and laterally of said fabric.

12. Manufacturing method for the use of articulated mesh fabric, according to any one of claims 8 to 10, according to which oval-shaped rings are used, characterized in that said rings are folded in the middle , so as to form rings (1) fitting into a square and comprising U-shaped curvilinear parts substantially parallel in pairs (la/lb-lc/ld), which form the first rows of rings ( 3f/3g/3b) by positioning the rings (1) angle (le) against angle (le) and at 4° relative to a line (4) passing through the angles (lf) of said rings (1) and leaving a space (p) between said first rows, greater than the transverse bulk of a ring, in that second rows of rings (3d/3e) are formed by positioning the rings (1) angle (le) against angle (le) at 45° relative to a line (4) passing through the angles (lf) of said rings, and facing the locations (5) delimited by the rings of said first rows (3f/3g/3h) and in this that, perpendicular to said first and second rows, axes (9/H) of a length at least equal to the width of the fabric are passed in the spaces reserved between said U-shaped curvilinear parts (la/lb-lc/ld) of the rings, to connect them together and articulate them together, and in that the rings (1) of said first (3f) and second (3d) rows are secured to one axis out of two (9/11) per ring, to allow a relative movement of said first (3d/3e) and second (3f/3g/3b) rows of rings and that said second rows (3^/3g/3h) are then positioned and/or secured between said first rows ( 3rd/3rd) and/or on the side of these rows.