Communicating board

Abstract

A communicating board includes: a display medium including a sheet of fabric, the sheet of fabric comprising, on at least one surface, loops intended to cooperate with a gripping strip provided with hooks; at least one first gripping strip provided with hooks enabling to hold in position the display medium, and at least one substantially rectilinear profile including a first planar connecting surface having the at least one first gripping strip provided with hooks positioned thereon. The first planar connecting surface is inclined towards a rear surface of the display medium when the latter cooperates with the at least one first gripping strip provided with hooks, the first planar connecting surface forming with a visible planar surface of the display medium an angle greater than 30.

Claims

1. A communicating board comprising: a display medium being totally formed by a sheet of fabric, said sheet of fabric comprising, on at least one surface, loops adapted to cooperate with a gripping strip provided with hooks, said loops being integral parts of the sheet of fabric; at least one first gripping strip provided with hooks enabling to hold in position said display medium; at least one substantially rectilinear profile, comprising a first planar connecting surface having said at least one first gripping strip provided with hooks positioned thereon; characterized in that said first planar connecting surface is inclined towards a rear surface of the display medium when the latter cooperates with said at least one first gripping strip provided with hooks, said first planar connecting surface forming with a visible planar surface of the display medium an angle greater than 30.

2. The communicating board of claim 1, characterized in that the angle between said planar connecting surface and the visible planar surface of the display medium is smaller than or equal to 180.

3. The communicating board of claim 1, characterized in that said first planar connecting surface is formed by a lateral surface of a groove formed by said at least one substantially rectilinear profile.

4. The communicating board of claim 1, characterized in that said communicating board further comprises at least one second gripping strip provided with hooks enabling to achieve the holding in position of said display medium, said substantially rectilinear profile comprising a second planar connecting surface having said second gripping strip provided with hooks positioned thereon, said second planar connecting surface being parallel to said visible planar surface of the display medium.

5. The communicating board of claim 1, characterized in that said communicating board further comprises a retractable cache capable of at least partially covering the display medium at a level of a selvedge.

6. The communicating board of claim 1, characterized in that said at least one substantially rectilinear profile cooperates with a rotating shaft enabling to stretch the display medium by rotation of said rotating shaft around an axis.

7. The communicating board of claim 1, characterized in that said communicating board further comprises means for fastening and for stretching the display medium on a frame, said means comprising: a vertically-shiftable substantially rectilinear horizontal profile capable of cooperating with an upper selvedge of the display medium; a substantially rectilinear horizontal profile capable of cooperating with a lower selvedge of the display medium; two groups, each comprising a plurality of independent modules, each module of a group being capable of vertically sliding with respect to a guide and of cooperating with a lateral selvedge of the display medium.

8. The communicating board of claim 1, characterized in that said communicating boar further comprises means for fastening and for stretching the display medium on a frame, said means comprising: a horizontally-shiftable substantially rectilinear vertical profile capable of cooperating with a first lateral selvedge of the display medium; a substantially rectilinear vertical profile capable of cooperating with a second lateral selvedge of the display medium; two groups, each comprising a plurality of independent modules, each module of a group being capable of horizontally sliding with respect to a guide and of cooperating with a horizontal selvedge of the display medium.

9. The communicating board of claim 7, characterized in that each module comprises a third planar connecting surface having a third gripping strip provided with hooks positioned thereon.

10. The communicating board of claim 9, characterized in that said third planar connecting surface is inclined towards a rear surface of the display medium when the latter cooperates with said at least one third gripping strip provided with hooks, said third planar connecting surface forming with a visible planar surface of the display medium an angle greater than 30.

11. The communicating board of claim 10, characterized in that each module comprises at least one fourth gripping strip provided with hooks enabling to achieve the holding in position of said display medium, said module comprising a fourth planar connecting surface having said fourth gripping strip provided with hooks positioned thereon, said second planar connecting surface being parallel to said visible planar surface of the display medium.

12. The communicating board of claim 1, characterized in that said communicating board further comprises at least one fifth gripping strip provided with hooks enabling to achieve the holding in position of a central area of said rear surface of the display medium.

13. A communicating board comprising: a display medium comprising a sheet of fabric, said sheet of fabric comprising, on at least one surface, loops adapted to cooperate with a gripping strip provided with hooks; at least one first gripping strip provided with hooks enabling to hold in position said display medium; at least one substantially rectilinear profile, comprising a first planar connecting surface having said at least one first gripping strip provided with hooks positioned thereon; characterized in that said first planar connecting surface is inclined towards a rear surface of the display medium when the latter cooperates with said at least one first gripping strip provided with hooks, said first planar connecting surface forming with a visible planar surface of the display medium an angle greater than 30; and in that said first planar connecting surface is formed by a lateral surface of a groove formed by said at least one substantially rectilinear profile.

14. The communicating board of claim 1, characterized in that the angle between said planar connecting surface and the visible planar surface of the display medium is smaller than 90.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The way to implement the present invention, and the resulting advantages, will better appear from the description of the following non-limiting embodiment, given as an indication, based on the accompanying drawings, among which:

(2) FIG. 1 is a perspective view according to a first variation of a communicating board according to the invention, without its display medium;

(3) FIGS. 2 to 6 show partial cross-section views according to different variations of the selvedge of a display medium and of a rectilinear profile whereon it is placed;

(4) FIGS. 7 and 8 are front views of two other variations of a communicating board according to the invention where the display medium is deployed by mechanisms;

(5) FIGS. 9 and 10 are perspective views showing the mode of attachment of the horizontal and/or vertical selvedges of a display medium on communicating boards such as those of FIGS. 7 and 8.

DETAILED DESCRIPTION OF THE INVENTION

(6) As already mentioned, the invention relates to a communicating board comprising a display medium formed by a sheet of fabric and cooperating with at least one gripping strip provided with hooks.

(7) As shown in FIG. 1, communicating board 1 thus has four substantially rectilinear profiles 3 having first gripping strips 16 enabling to hold in position the selvedges of a display medium.

(8) As shown in FIG. 2, the communicating board is formed by the assembly of four substantially rectilinear profiles 3 comprising first planar connecting surfaces 13 inclined towards a rear surface 4 of display medium 2. An angle thus defines this inclination with respect to visible planar surface 10 of display medium 2. Such an angle is greater than 30 for an optimal holding in position of display medium 2 on substantially rectilinear profiles 3.

(9) Indeed, such a display medium 2 comprises a sheet of fabric 14 and may have a resilience enabling to stretch it, to suppress possible wrinkles at its surface. Such a stretching then creates a shearing effort on the hook and loop connections, thus fastening the display medium to the frame of the communicating board.

(10) Further, and as shown in FIG. 3, substantially rectilinear profile 6 may also comprise a second gripping strip 26 arranged at the level of a second planar connecting surface 21. In this case, first planar connecting surface 23 is inclined by an angle having a value of approximately 90 with respect to visible planar surface 10 of display medium 2.

(11) Second planar connecting surface 21 is arranged parallel to visible planar surface 10 of display medium 2.

(12) As shown in FIG. 4, substantially rectilinear profile 7 may form a groove 30 having display medium 2 inserted therein. In this case, the first planar connecting surface is formed by a lateral internal surface 33 of groove 30.

(13) In the same way as in FIG. 3, such a profile 7 may comprise a second planar connecting surface 31 whereon a second gripping strip 26 may be placed.

(14) As shown, first and second gripping strips 16, 26 are formed in a same strip simply folded to cooperate with first and second planar connecting surfaces 33, 31.

(15) As shown, the communicating board may also comprise a retractable cache 32 capable of at least partially covering display medium 2 at the level of a selvedge 34.

(16) As shown, retractable cache 32 may be installed by reversible hook-and-loop type fastening, but the invention is not limited to this single embodiment. It is indeed possible to use a retractable cache which is capable of pivoting or sliding with respect to rectilinear profile 7.

(17) As shown in FIG. 5, the communicating board may also comprise a substantially rectilinear profile 303 comprising a planar connecting surface 313 inclined towards a rear surface 304 of display medium 302. An angle then defines the inclination of planar connecting surface 313 equipped with a gripping strip 316 with respect to the visible planar surface 310 of display medium 302.

(18) Such a profile 303 may especially appear in the form of a flexible profile comprising at the level of one of its selvedges a ring cooperating with a part 322. The ring is thus inserted into a groove formed by tabs 324 of part 322. Further, such a part 322 comprise a wing 323 intended to be introduced into a slot 321 formed in a rotating shaft 320.

(19) The rotation of rotating shaft 320 around axis 325 then enables to stretch display medium 302. Such a stretching may indeed be useful on first installation of the display medium on the communicating board, and also after a usage period, when wrinkles appears at the surface of display medium 302.

(20) As shown in FIG. 6, and according to a variation, substantially rectilinear profile 403 may appear in the form of a U comprising a planar connecting surface 413 inclined towards a rear surface 404 of display medium 402. Planar connecting surface 413 is inclined by an angle with respect to visible planar surface 410 of display medium 402 and is fitted with a gripping strip 416 to hold in position a selvedge of display medium 402.

(21) Further, profile 403 comprises a wing 422 which is introduced into a groove 421 formed at the level of the internal surface of a rotating shaft 420. As previously, such a rotating shaft 420 enables to perform the stretching at the first installation of display medium 402 on the communicating board, but also after a usage period, when wrinkles appears at the surface of display medium 402.

(22) As shown in FIG. 7, communicating board 101 may comprise a frame 106 having mobile elements such as a vertically-shiftable substantially rectilinear horizontal profile 103 cooperating therewith, and capable of cooperating with an upper selvedge of the display medium. Such a communicating board 101 also comprises a substantially rectilinear horizontal profile 105 capable of cooperating with a lower selvedge of the display medium.

(23) Further, two groups 107, 108, each comprising a plurality of modules 109 vertically sliding with respect to a guide 111 capable of cooperating with a lateral selvedge of the display medium.

(24) Mobile profile 103 may be displaced by means of a manual actuation member, for example comprising a string 130 connected with a central part 131. Central part 131 is connected to two strings 133, 134 having their two ends attached to horizontal profile 103. Further, two sets of pulleys 132 enable to perform an angle transmission 131 with respect to profile 103 when an operator actuates rope 130.

(25) As shown, communicating board 101 may also be equipped with a fifth gripping strip 126 provided with hooks enabling to achieve the holding in position of a central area of the rear surface of display medium 102.

(26) Further, as shown in FIG. 9, each module 119 may appear in the form of a block cooperating in a sliding joint according to a dovetail-type joint penetrating into a housing of complementary shape formed in a rail 122. Such an arrangement thus allows shifting motions between each independent module 119 and rail 122.

(27) A third gripping strip 116 provided with hooks is here positioned on an inclined plane forming a third planar connecting surface 113. Third planar connecting surface 113 is indeed inclined towards a rear surface 104 of the display medium when the latter cooperates with third gripping strip 116 and the angle with respect to visible planar surface 110 of the display medium is greater than 30 to provide an optimal resistance to tearing.

(28) As shown in FIG. 8, communicating board 201 may comprise a frame 206 having mobile elements such as a horizontally-shiftable substantially rectilinear vertical profile 203 cooperating therewith, and capable of cooperating with a first lateral selvedge of display medium 202. Such a communicating board 201 also comprises a substantially rectilinear vertical profile 205 capable of cooperating with a second lateral selvedge of display medium 202.

(29) Further, two groups 207, 208, each comprising a plurality of modules 209 horizontally sliding with respect to a guide 211 capable of cooperating with a horizontal selvedge of display medium 202.

(30) As in FIG. 7, mobile profile 203 may be displaced by means of a manual actuation member, for example comprising a rope, pulleys, and a central part. The displacement of profile 203 thus enables to deploy display medium 202 and advantageously to perform the horizontal stretching.

(31) As shown in FIG. 10, each module 209 may appear in the form of a block cooperating in a sliding joint by means of complementary prismatic shapes between a guide 211 and a through opening formed in module 209. A third gripping strip 216 provided with hooks is here positioned on a surface inclined by 90 with respect to the plane of visible planar surface 210 of display medium 202.

(32) This surface inclined by 90 thus forms a third planar connecting surface 213 inclined towards a rear surface 204 of display medium 202 when the latter cooperates with third gripping strip 216.

(33) Further, module 209 also comprises a fourth planar connecting surface 214 having a fourth gripping strip 226 arranged thereon. Accordingly, the selvedge of display medium 202 is also attached to module 209 at the level of a gripping strip 226 arranged parallel to the plane defined by visible surface 210 of display medium 202.

(34) Such an arrangement indeed eases the stretching of display medium 202 on fourth gripping strips 226, after which the flaps on third gripping strip 216 ensure the holding in position while avoiding any incidental tearing of display medium 202 by peeling at the level of modules 209.

(35) As appears from the foregoing, a communicating board according to the invention has many advantages, and especially: it enables to hold in position a sheet of fabric forming a display medium; it enables to form surfaces of several square meters, or even tens of square meters, and especially capable of resisting wind stress; it enables to manually stretch the display medium on the profiles; it enables to do away with accuracy constraints for the display medium cutting and printing; it enables to significantly decrease costs by seriously limiting the board components used to install the communication support.