WO2022043174A1 - Dispositif de mise sous tension d"une toile - Google Patents
Dispositif de mise sous tension d"une toile Download PDFInfo
- Publication number
- WO2022043174A1 WO2022043174A1 PCT/EP2021/073002 EP2021073002W WO2022043174A1 WO 2022043174 A1 WO2022043174 A1 WO 2022043174A1 EP 2021073002 W EP2021073002 W EP 2021073002W WO 2022043174 A1 WO2022043174 A1 WO 2022043174A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tensioning device
- slot
- retaining
- main body
- fin
- Prior art date
Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 38
- 239000004744 fabric Substances 0.000 claims description 91
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- 239000011152 fibreglass Substances 0.000 description 7
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 6
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- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical group C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
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- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
- E04F13/005—Stretched foil- or web-like elements attached with edge gripping devices
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
- E04B9/303—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall for flexible tensioned membranes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
- E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
- E04F13/0814—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements fixed by means of clamping action
Definitions
- the invention relates to a device for tensioning a canvas.
- the fastening device comprises a retaining support provided with at least one slot formed by two facing walls, one of the walls of which is smooth and the another has a notched portion.
- the fabric is fixed to an insert and is held wedged against the smooth wall of the slot by a stop of the insert.
- the insert is blocked in the slot by means of a foot arranged opposite the edge and cooperating with the notched portion of the slot.
- the tension exerted by the canvas on the edge of the insert causes the opposing foot to press against the notched portion, which keeps the insert in a locked position.
- this solution does not allow the insert to be easily retracted and removed from the retaining support, in particular to replace, replace or to perform maintenance on the fabric, so that these operations are exhaustive.
- tensioning the fabric creates very localized points of stress which risk tearing it, in particular in the context of an ethylene tetrafluoroethylene fabric and breaking the glass fibers which make up the PTFE fabrics.
- This process also does not allow the application of fabrics fine techniques requiring peripheral tailoring. It is more complicated to implement and must be handled by a trained professional.
- the present invention aims to overcome the drawbacks of the prior art by proposing a device for tensioning a canvas allowing rapid assembly and disassembly operations of the canvas in a retaining support and minimizing the risks tearing of the canvas when tensioning.
- the subject of the invention is a device for tensioning a fabric, configured to cooperate with a slot formed by two facing walls of a retaining support, one of the walls of the slot being smooth while the other has at least one notched portion, the tensioning device comprising at least one holding member for holding the canvas under tension in the state mounted in the retaining support, characterized in that the tensioning device comprises a main body and at least one locking member having a free end intended to cooperate with the notched portion of the slot, said main body is provided with an attack surface configured to cooperate with the wall smooth of the slot in order to wedge the fabric in the slot, said at least one blocking member is pivotally mounted on the main body by a pivot joint around an axis so as to be able to assume a retaining position in which the free end of the blocking member is remote from the main body and cooperates with the notched portion of the slot, and an unlocked position in which the free end of the blocking member is close to the main body and remote from the notched portion of the slot in the mounted state, and in
- the tensioning device can be easily retracted and retracted from the slot of the retaining bracket, which facilitates the assembly and disassembly operations of the canvas.
- the attack surface of the tensioning device ensures a distribution of the pressing force of the latter on the canvas to wedge it against the smooth wall of the slot. This attack surface thus makes it possible on the one hand to avoid tearing of the canvas since the forces are distributed over a surface, and on the other hand to ensure better wedging of the canvas by increasing the surfaces in contact.
- the elastic member may be a joint or a spring, and in particular an O-ring or a spring having two arms for its attachment to the main body and to the blocking member.
- the elastic member can be made of steel (spring) or silicone (O-ring).
- spring steel
- O-ring silicone
- a part of the O-ring is for example placed in abutment against the retaining member and an opposite part is placed in the retaining member, without being fixed there.
- the elastic member can be fixed to the main body and to the retaining member.
- the attack surface of the main body notably has a dimension of 3 to 70 cm2. Such a range of dimensions makes it possible to ensure a significant wedging force of the canvas, and a significant distribution of the forces so as to preserve the canvas.
- the fabric intended to be stretched is in particular made of composite material.
- fiberglass polyvinyl chloride (PVC) or ethylene tetrafluoroethylene (ETFE). It may have a polytetrafluoroethylene (PTFE) coating.
- the fabric can be single-layered or multi-layered.
- the pivot joint between the main body and the retainer is in particular a cylinder connection. This cylinder connection is for example formed by a solid cylinder carried by the retaining member and a longitudinally open hollow cylinder carried by the main body, or vice versa.
- the locking member has in particular a rotational movement around the pivot connection of 30 to 60 degrees, for example 45 degrees.
- the axis passing through the free end of the locking member and through the axis of rotation of the pivot joint has in particular an angle of 45 to 80 degrees with the axis perpendicular to the attack surface and passing through the axis of rotation of the pivot joint.
- the locking member can in particular be configured so that its free end is arranged beyond the axis perpendicular to the smooth wall passing through the axis of rotation of the pivot joint, in the direction of the opening of the slot, when the device is mounted in said slot.
- the free end is arranged less than 5 millimeters from this axis, in particular less than 3 millimeters, or even less than 1 millimeter.
- said at least one locking member comprises a retaining fin having said free end.
- the elastic member retains the retaining fin in abutment against the main body, and particularly in abutment against the retaining member.
- the blocking member comprises a reinforcement enabling it to come into abutment against the main body according to an additional stop, the two stops of the blocking member being able to be arranged substantially perpendicular to each other.
- Such support of the blocking member makes it possible to reinforce the pressure of the attack surface on the fabric, by the pivot movement of the blocking member described above.
- these two stops match the shape of the main body in the retaining position.
- the reinforcement and the main body are configured so that the abutment of the reinforcement coming against the main body is disposed substantially parallel to the smooth wall of the slot when the tensioning device is mounted in said slot.
- the retaining fin may have an arched shape at its free end.
- the free end of the retaining fin has a straight shape.
- the main body comprises a landing stop for a flat tool disposed perpendicular to the leading surface and configured to be exposed at the opening of the slot.
- the attack surface of the main body is extended by an attack fin.
- the attack fin has two features. On the one hand, it makes it possible to increase the attack surface of the main body and therefore to increase the wedging forces of this surface. On the other hand, when a laying stopper is present, it protects the fabric from the blows of the flat tool which can cause it to tear, when following the percussion of the mass the latter leaves its contact with the stopper. With the leading fin, the end of the tool rests on it and therefore cannot leave the laying stop in the direction of the canvas.
- the landing stop is arranged at the proximal part of the attack wing, that is to say at its base.
- the main body comprises a guide fin disposed vis-à-vis the attack fin, the attack fin and the guide form a guide for the flat tool laying and are arranged on either side of the laying abutment.
- the guide fin has several functions here. Both it guides the flat tool towards the laying stop and at the same time it protects the retaining member by preventing the flat tool from leaving contact with the laying stop during percussion of the mass. in the direction of the retainer.
- the guide flares out towards the free end of the attack fin, which makes it easier to guide the flat tool towards the abutment.
- the guide fin extends in a direction secant to that of the attack fin.
- the attack surface of the main body and/or the attack fin has a notched portion.
- the notched portion ensures better wedging of the fabric against the smooth wall of the slot.
- the rows of teeth of the toothed portion are configured to be directed towards the opening of the slot when the tensioning device is placed in the retaining support.
- the notched portion retains the device against the canvas and ensures better retention of the attack surface and/or of the attack fin against the canvas.
- the notched portion corresponds to ribs made in the attack surface and/or the attack fin.
- the teeth of the notched portion arrive at the same height as the attack surface but do not exceed it. This aspect allows the notched portion to play the role described above, while minimizing the stress points that could be created and therefore improving the preservation of the integrity of the canvas.
- said locking member comprises an unlocking fin associated with said retaining fin, said unlocking fins being arranged opposite the retaining fins and together defining a guide for a flat setting tool.
- the release fin allows a flat tool to press on it and tilt the locking device from the retained position to the unlocked position. It thus facilitates the dismantling of the canvas.
- the guide flares out towards the free end of the retaining fin, which facilitates the insertion of the flat tool into the guide.
- the free distal part of the release fin has an extra thickness acting as a reinforcement to better withstand the forces produced by the flat tool.
- This distal part extends particularly parallel to the attack surface, or to the attack fin if it is present, when the blocking member is in the retaining position so as to facilitate the support of the flat tool on this distal part.
- the proximal part of the unlocking fin can extend parallel to the guide fin of the main body when the locking member is in the unlocking position.
- the guide fin serves as an abutment both for the release fin and limits its travel so that their contact defines the release position of the locking member.
- the laying stopper and the release fin can be configured to be able to interact with the same flat tool, which facilitates the assembly and disassembly stages of the fabric.
- the tensioning device comprises several locking members carried by a single main body and whose axes of the pivot joints are coaxial.
- the main body has a long elongated shape, and the attack surface is all the more important.
- This embodiment is particularly suitable for fabrics made of ethylene tetrafluoroethylene and fiberglass, because the wedging force is distributed over a large surface.
- the tensioning device comprises two retainers which are separated by an air gap of 15 to 30 cm.
- the length of the main body is 20-40cm, for example, 30cm.
- the two retainers can be arranged on either side of the main body, that is to say at each side edge of the main body, or the main body can extend on each side of the retainers .
- the holding member can extend over the entire length of the main body, or be present only at the level of the retaining members. When the retaining member extends over the entire length of the main body, it is in particular provided with slots for the insertion of the elastic member, in particular when it is an O-ring.
- the pivot joint is arranged equidistant at the free end of the attack surface and at the free end of the holding member.
- the pivot axis arranged equidistant from the opposite ends of the main body makes it possible to apply a homogeneous pressure distributed over the entire attack surface to wedge the canvas in the slot.
- the holding member is made in one piece with the main body.
- part of the retaining member is formed by the blocking member and the other by the main body.
- the holding member forms a housing configured to cooperate with a cylindrical member by a sliding pivot connection and defining a space between the cylindrical member and the maintenance, said space being intended to receive and wedge the fabric or a skirt fixed to the fabric.
- the skirt is also called keder in the technical field.
- this holding system makes it possible both to wedge the edge of the fabric and a part of the latter arranged further inside. In this second case, the edge of the fabric can come back to pass under the attack surface when the holding device is mounted in the slot, so that the attack surface presses on two layers of fabric corresponding to the aisle and on the return of the fabric from the holding member. This ensures better wedging of the fabric in the slot.
- this aspect of the invention there is therefore a holding system formed by the holding member and the cylindrical member.
- This aspect of the invention is very interesting because it makes it possible to considerably reduce the breakage of fragile fabrics such as fiberglass fabrics, as will be seen later.
- the canvas can be easily inserted and removed from the holding device, allowing it to be adjusted during assembly.
- This holding member can be reused to fix a new canvas, and avoid it being necessary to throw away the tensioning device when replacing a canvas, as is the case with the system of document WO 2009095200.
- the walls of the cylindrical organ can be smooth or ribbed.
- the cylindrical member may for example be made of PVC or silicone.
- the cylindrical member can be a pin or a cylindrical ring.
- the cylindrical member has in particular a length of 35 to 400 mm, and a diameter of 3 to 9 mm.
- the cylindrical member has for example a length of 35 to 70 mm, in particular a length of 40 to 50 mm.
- the cylindrical member has in particular a length of 200 to 400 mm, in particular a length of 300 to 350 mm or continuously around the periphery.
- the cylindrical organ may have a uniform diameter.
- the cylindrical member has in particular a diameter which tapers towards its ends starting from the regions cooperating with the edges of the housing to allow its easier insertion into the housing.
- a cylindrical member can cooperate with a single or several housings, in particular in the case where several retainers are present.
- the cylindrical member has a length greater than that of the housing of the holding member so as to emerge on either side of this housing. This embodiment makes it possible to adjust the length of the stretched fabric, the two ends of the cylindrical member protruding from the housing acting as gripping members to rotate the pin in place in the housing around the sliding pivot connection and by extension to drive in rotation around the cylindrical member the fabric placed in the space separating the holding member from the cylindrical member.
- the rotation of the cylindrical member makes it possible to attract the canvas into the retaining support, and therefore to reduce the length of the canvas outside the retaining support, and vice versa.
- the length of the cylindrical member is configured so that once it is inserted into the housing, no part comes out.
- the cylindrical member has in particular blisters arranged at the level of the two regions cooperating with an edge of the or at least one of the housings, and this or these housings have a flare at their edges. This aspect makes it possible to limit or even prevent transverse movements of the cylindrical member in the housing(s), and therefore better retention of the cylindrical member in the retaining member(s).
- the cylindrical member can be directly or indirectly attached to the fabric.
- a skirt surrounding the cylindrical member is arranged in the space separating the cylindrical member from the walls of the housing.
- the skirt can simply be in contact with the cylindrical member or else be fixed thereto.
- This skirt is intended to be fixed to the fabric, and allows better maintenance of the fabric by the holding member.
- the surface of fixing the skirt to the fabric can be greater than that of a direct fixing of the fabric on the cylindrical member.
- the skirt comprises an extension making it possible to increase the surface for attachment to the canvas.
- the fixing of the skirt to the cylindrical member and that of the fabric to the skirt can in particular be carried out by welding, by gluing or by sewing.
- the housing may include a bulge towards the retainer. This bulge allows the passage of the elastic member when the latter is an O-ring. Such a position of the O-ring is also advantageous because it will be in contact with the fabric or the skirt, and thus participate in its retention in the retaining member.
- the tensioning device may comprise two side channels formed in the main body and the retaining member for the passage of the side edges of the elastic member in the form of an O-ring.
- the O-ring protrudes little or does not protrude on each side of the tensioning device and the size of the latter is reduced.
- these channels open on one side into the gap separating the retaining fin and the release fin, and on the other side into the housing of the retaining member.
- the holding member is in the form of a jaw or a pair of jaws, surrounding the cylindrical member and defining an opening for the passage of the fabric towards the space between the member holding and the cylindrical member.
- the housing of the retaining member may have a radius of curvature greater than or equal to 3 mm, in particular from 3 to 12 mm.
- the retaining member When the retaining member is in the form of a jaw, the latter projects from the main body and surrounds the cylindrical member.
- the housing of the holding member has an opening for the passage of the fabric (or the skirt) which opens onto the attack surface of the main body.
- the part of the main body making the junction between the attack surface and the holding member may have a rounded shape potentially provided with a notched region.
- the junction part has a radius of curvature greater than or equal to 5 mm, in particular from 5 to 12 mm, in particular from 5 or 10 mm.
- the housing of the holding member may also have a radius of curvature greater than or equal to 5 mm, in particular from 5 to 12 mm, in particular from 5 or 10 mm.
- This embodiment is particularly well suited for fiberglass fabrics. Indeed, these fabrics are likely to break if this radius curvature is not respected and is too low (less than 5 mm), which drastically reduces their properties once stretched.
- the holding member is formed by two jaws projecting opposite each other from the main body.
- the locking member extends beyond the pivot joint to form one of the jaws and the other jaw being formed by the main body.
- the invention further relates to a retaining support comprising at least one slot formed by two facing walls, one of the walls being smooth while the other has at least one notched portion, said at least one slot cooperates with a fabric tensioning device as described above.
- the retaining bracket is in particular an aluminum profile.
- the retaining bracket comprises at least one rail and at least one anchoring member mounted in translation by its head for fixing the bracket to one tenant.
- the holding can be a wall or an armature.
- the anchoring device is made of galvanized steel. Under these conditions, the head of the anchoring member is for example covered by an insulating element, for example made of plastic.
- the anchoring member is in particular a screw.
- the invention also relates to a facade element comprising a retaining support as described above intended to be fixed against the facade of a building, a fabric intended to mask part of the building and underlay devices. fabric tension as defined above.
- the invention also relates to a method for releasing a canvas from a retaining support as described above, in particular to replace it, replace it or to carry out maintenance, comprising a step for moving the free end of the locking member from the retained position to the unlocked position in which the free end of the locking member is closer to the main body and away from the notched portion of the slot in the mounted state.
- the invention finally relates to a method for adjusting the tension of a fabric stuck in a retaining support as described above, the holding member of the device for tensioning the fabric forming a housing and the cylindrical member having a length greater than that of the housing so that these ends protrude from the housing so as to form gripping, comprising a step of rotating the cylindrical member in the housing by its ends.
- figure la is an exploded view of a fabric tensioning device according to a first embodiment of the invention.
- FIG. 1b is a sectional view of a fabric tensioning device according to the first embodiment of the invention mounted in a retaining support and tensioning a fabric.
- Figure 2 is a set of views (2a to 2c) representing a kinematics of setting up a tensioning device according to the first embodiment in a retaining support.
- Figure 3 is a set of views (3a to 3c) representing a release kinematics of a tensioning device according to the first embodiment fixed in a retaining bracket.
- Figure 4 is a sectional view of a facade to which is fixed a retaining support according to the invention in which are mounted two devices for tensioning a fabric according to a first and a second embodiment putting in tension each a canvas.
- Figure 3a is a top view of % of a fabric tensioning device according to a third embodiment of the invention.
- FIG. 3b is a top view of a fabric tensioning device according to a fourth embodiment of the invention.
- figure 6 is a fifth embodiment of a tensioning device (1””).
- FIGS 1a and 1b show a first embodiment of a device 1 for tensioning a fabric 3 according to the invention.
- the tensioning device 1 comprises a main body 5 on which is movably mounted by a pivot joint a locking member 7.
- the tensioning device 1 is configured to be mounted in a slot 9 a retaining bracket 11 (visible in Figure 1b).
- This slot 9 comprises a smooth wall 13 facing a wall having a notched region 15.
- the opening of the slot 9 is blocked by a cover 51.
- the front, the back, bottom and top of the tensioning device are defined relative to its position when mounted in the retainer bracket slot.
- the front of the device or one of these components faces the bottom of the slot, while the back faces the opening of the slot.
- the upper part is turned towards the wall carrying the notched portion, while the lower part is turned towards the smooth wall.
- the main body 5 of the tensioning device 1 has a front end carrying a holding member 17 which is in the form of two jaws 19 (one upper and one lower) separated by a housing 21 of cylindrical shape.
- This housing 21 is configured to receive a cylindrical member 23 in the form of a pin.
- the side walls of the housing 21 are open and its side edges flare outwards, facilitating the entry of the pin 23.
- the front part of the housing has an opening for the passage of the canvas or a skirt fixed to the Web.
- the fabric 3 is fixed to a skirt 25.
- This skirt 25 coats the pin 23 and is fixed there.
- the skirt 25 also has an extension which extends into the front opening of the housing 21 and which is fixed to the fabric 3.
- the pin 23 has a tapered shape at each end to facilitate its penetration into the housing 21.
- the pin 23 has a greater length than that of the housing 21 and carries two blisters 27 configured to be each disposed in the flared part of a side edge of the housing 21. This shape makes it easier to put the fabric in place, as explained above.
- the underside of the main body 5 forms an attack surface 29 for wedging the fabric 3 against the smooth wall 13.
- the attack surface 29 is provided with a notched portion making it possible to limit the movements of the positioning device. under tension 1 with respect to the canvas 3, thus improving the retention of the canvas 3 against the smooth wall 13.
- the attack surface 29 is extended by an attack fin 31 forming the rear end of the main body.
- this attack fin 31 there is a landing stop 33 arranged perpendicular to the attack surface 29.
- This landing stop 33 is configured to be struck by a flat laying tool, allowing the tensioning device 1 to progress towards the bottom of the slot 9.
- the lower part of the main body is massive so as to withstand the impacts of the flat tool.
- a guide fin 35 extends from the landing abutment 33 opposite the attack fin 31 to form a guide.
- the guide fin 35 extends in a secant direction to the direction of the attack fin 31 so that the guide flares out towards the rear of the main body 5. This guide allows both better positioning of the flat laying tool and avoids degradation of the canvas and of the blocking member, as explained above.
- the locking member 7 is articulated by a cylinder connection with the main body 5.
- the locking member carries at the front a solid cylindrical 37 cooperating with a hollow cylinder 39 open longitudinally disposed at the level of the main body 5.
- the hollow cylinder 39 is arranged at the level of the solid part of the main body 5 and equidistant from the rear end formed by the attack fin 31 and the front end formed by the jaw 19 lower.
- the locking member 7 By its pivot joint, the locking member 7 is movable between a retaining position (visible in Figure 1b), and an unlocking position. As can be seen in FIG. 1b, in the retaining position the locking member 7 cooperates via its free rear end with the notched portion of the wall 15 of the slot 9. More particularly in this embodiment, the member lock 7 has a retaining fin 41 carrying said free end.
- the front face of the blocking member 7 has an abutment 43 which is in contact with a counter-abutment (not visible) corresponding to the level of the main body in the retaining position.
- the counter-stop here represents the rear part of the upper jaw 19. The locking member passes from the retaining position to the unlocking position by tilting the tensioning device backwards.
- This tilting releases the retaining fin from the notched portion and allows the tensioning device to move in the slot.
- the tensioning device can thus either progress towards the bottom of the slot to increase the tension of the fabric, or move back towards the opening of the slot to decrease the tension of the fabric. Placing the blocking member in the retaining position makes it possible to block the retaining fin again in the notched portion from the wall of the slot and block the tensioning device in its new location.
- the retaining fin 41 extends a locking fin 45.
- the retaining fin 41 and the release fin 45 together form a guide for a flat laying tool whose function will be to tilt the release flap backwards.
- the free distal part of the release fin 45 has an extra thickness acting as a reinforcement to better resist the forces produced by the flat tool.
- This distal part extends parallel to the attack fin 31 when the blocking member 7 is in the retaining position so as to facilitate the support of the flat tool on this distal part.
- the proximal part of the release wing 45 extends parallel to the guide wing 41 of the main body 5 when the locking member 7 is in the unlocking position.
- the guide fin 41 serves as a stop for the release fin 45 and their contact defines the release position of the locking member 7.
- the locking member 7 is held in its retaining position by an elastic member 47.
- the elastic member 47 is an O-ring. As can be seen in FIG. 1b, this O-ring 47 is arranged in its front part in the housing 21 of the retaining member 17, and in its rear part in the gap separating the retaining fin 47 from the release flap. As such, the housing 21 has a bulge in its rear part so that the O-ring 47 does not encroach on the space allocated to the pin 23.
- the O-ring 47 is in contact with the skirt 25 and thus participates to hold it between the jaws 19.
- the side parts of the O-ring 47 are each arranged in a channel 49 formed in the side part of the main body 5 and of the blocking member 7. Thus the elastic member 47 does not protrude from the side edges of the tensioning device 1, and the size of the latter is reduced.
- the canvas is secured at its opposite end and the purpose of the operation is to secure it at its visible end in the retaining bracket in a taut state.
- the blocking member 7 is in the retaining position.
- a mass 52 here a hammer 52, is also visible and strikes the bottom of the flat laying tool 50 so as to push the tensioning device 1 towards the bottom of the slot 9.
- the tensioning device 1 has progressed towards the bottom of the slot 9 following the percussions of the mass 52 given in Figure 2a. It can be seen here that the blocking member 7 has changed position and is tilted into the unlocking position. Indeed, during the progress of the power-up device
- the tensioning device 1 is blocked in this position thanks to the blocking member 7 which is in its retaining position and the free end of which bears against a tooth of the notched region of the wall 15 of the slot. 9. As shown, the flat laying tool 50 can therefore be removed from its contact with the laying abutment 33 without risking the tensioning device 1 moving from its position.
- the locking member 7 is held in this position thanks to the pressure that applies the flat tool 50 to the free end of the release fin 45. If the installation tool stops applying this pressure, then the locking member returns to its retained position under the action of the elastic organ.
- the tensioning device 1 retains its position in which the fabric 3 is stretched.
- the flat tool 50 has been recoiled while maintaining pressure on the free end of the release fin 45. By the force exerted by the tension of the canvas, this recoil immediately the effect of causing the recoil of the tensioning device 1 in the direction of the opening of the slot 9. As can be seen, the fabric 3 then appears relaxed.
- FIG 4 illustrates a facade element 53 against which is fixed a retaining bracket 11 '.
- This retaining support 11' comprises two slots (9 and 9') arranged in an inverted "V" with respect to the facade.
- the tensioning device 1 according to the first embodiment described with reference to Figures 1a and 1b.
- the slot 9 ' is shown a tensioning device 1' of a fabric 3' of a second embodiment particularly suitable for tensioning fiberglass fabrics, covered or not with a layer of PTFE.
- the holding member 17' has differences with the holding member of the first embodiment.
- there is only one jaw 19' which extends from the upper part of the main body 5', and which coats a pin 23'.
- the pin 23' here has a larger diameter than the pin of the first embodiment, for reasons of the radius of curve of the fabric 3' as described below.
- This bit 19' defines a housing whose opening for the fabric or the skirt (here the fabric 3') is arranged facing the smooth wall 13', that is to say facing the lower rear part of the tensioning device 1'.
- the notched portion of the attack surface is extended at the front at the level of a curved part in the direction of the pin 23'.
- the opening of the housing of the holding member 17' faces the curved part of the main body 5'.
- the fabric 3 ' has a fold with a radius of curvature of at most 5 mm, that is to say a radius of curvature greater than or equal to 5 mm, in order to 'avoid breaking the glass fibers and the properties of the fabric 3' are degraded.
- the two slots 9 and 9' are separated at their respective openings by a cover 51 clipped into the retaining bracket 11.
- the retaining bracket 11 is fixed to a facade element 53 by an anchoring member 55 , here screws whose head is covered with an insulator 57 of plastic material.
- the insulator 57 is mounted so as to move in translation in a rail 59 and the rod of the screw 55 passes through the facade element 53 and is fixed there using a bolt 61.
- Figures 5a and 5b represent respectively a third and a fourth embodiment of a device for tensioning (1”; 1'”) a fabric (3”; 3 '”) particularly suitable for ethylene tetrafluoroethylene and fiberglass fabrics.
- the main body (5”; '”) 5'”) has a larger attack surface than in the first and second embodiments, in order to obtain a support force of the attack surface on the canvas more homogeneous.
- these tensioning devices are in particular arranged in a contained manner in the slot of the retaining support, the support force thus being perfectly homogeneous.
- the attack (31”; 31'”) and guide (35”; 35'”) fins are continuous all along the main body (5”; 5'”).
- the body main (5”; 5”') cooperates with two locking members (7”; 7”') as described for the first embodiment which are separated by an air gap.
- the retaining member (17”; 17'”) cooperates with a cylindrical member in the form of a cylindrical rod (23”; 23'”) which passes through the housings of the two retaining members (17”; 17'” ) and is maintained there.
- the pivot joints of the holding members (17”; 17'”) are mutually coaxial.
- the fabric (3”; 3'”) is directly attached to the cylindrical rod (23”; 23'”).
- the two blocking members 7 are arranged on either side of the main body 5” at its side edges.
- the holding member 17 has two jaws 19” as in the first embodiment.
- the lower 19” jaw is continuous over the entire length of the main 5” body, while the upper 19” jaw is only present opposite the 7” blocking devices.
- the two 7'" blocking members are separated by an air gap but are not arranged at the side edges of the 5'" main body.
- the 17'' holding member also has two 19'' jaws as in the first embodiment.
- the 19'' upper and lower jaws extend on either side of the 5'' main body.
- the lower jaw 19'' is continuous, while the upper jaw 19'' has four slots 63, each being disposed at the level of a lateral edge of a locking member 7'', to allow the insertion of a O-ring at each 7'” blocking device.
- FIG. 6 shows a fifth embodiment of a device for tensioning (1””) a canvas, particularly suitable for ethylene tetrafluoroethylene and fiberglass canvases.
- This embodiment corresponds to the second embodiment with the exception of the blocking member.
- the blocking member 7”” of the embodiment represented comprises a reinforcement 65 coming into abutment with the upper face of a jaw 19' in the retaining position.
- the blocking member presses against the counter-stop and an upper counter-stop of the jaw 19'.
- the support on this upper counter-stop by virtue of its orientation, makes it possible to reinforce the support of the attack surface on the canvas.
- the locking member is retained in the retaining position by an elastic member 47.
- the retaining fin 4L of the locking member 7” is here shorter than in the other embodiments.
- the free end of the retained fin 4L is thus closer to the axis perpendicular to the direction of the attack fin passing through the pivot axis of the blocking member 7'.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180072263.1A CN116981817A (zh) | 2020-08-27 | 2021-08-19 | 用于张紧织物的装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2008743 | 2020-08-27 | ||
FR2008743A FR3113688B1 (fr) | 2020-08-27 | 2020-08-27 | Dispositif de mise sous tension d’une toile |
Publications (1)
Publication Number | Publication Date |
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WO2022043174A1 true WO2022043174A1 (fr) | 2022-03-03 |
Family
ID=73793343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/073002 WO2022043174A1 (fr) | 2020-08-27 | 2021-08-19 | Dispositif de mise sous tension d"une toile |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN116981817A (fr) |
FR (1) | FR3113688B1 (fr) |
WO (1) | WO2022043174A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220372750A1 (en) * | 2021-05-18 | 2022-11-24 | Stabilo Management B.V. | Modular wall system |
EP4407110A1 (fr) * | 2023-01-27 | 2024-07-31 | Kvadrat Acoustics A/S | Panneau de construction conçu pour être monté au plafond ou au mur d'une pièce et procédé de fabrication d'un tel panneau de construction |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1276091A2 (fr) * | 2001-07-09 | 2003-01-15 | Normand Verret | Support souple reversible pour surfaces d'affichage souples |
EP1809913A1 (fr) | 2004-11-08 | 2007-07-25 | Stéphane Lapouge | Dispositif de fixation d'une toile tendue |
WO2009095200A1 (fr) | 2008-01-29 | 2009-08-06 | Eps Profiled Solutions Gmbh | Elément de façade doté d’un élément de surface flexible |
DE102018100572A1 (de) * | 2018-01-11 | 2019-07-11 | Uwe Streckfuss | Haltevorrichtung |
-
2020
- 2020-08-27 FR FR2008743A patent/FR3113688B1/fr active Active
-
2021
- 2021-08-19 CN CN202180072263.1A patent/CN116981817A/zh active Pending
- 2021-08-19 WO PCT/EP2021/073002 patent/WO2022043174A1/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1276091A2 (fr) * | 2001-07-09 | 2003-01-15 | Normand Verret | Support souple reversible pour surfaces d'affichage souples |
EP1809913A1 (fr) | 2004-11-08 | 2007-07-25 | Stéphane Lapouge | Dispositif de fixation d'une toile tendue |
WO2009095200A1 (fr) | 2008-01-29 | 2009-08-06 | Eps Profiled Solutions Gmbh | Elément de façade doté d’un élément de surface flexible |
DE102018100572A1 (de) * | 2018-01-11 | 2019-07-11 | Uwe Streckfuss | Haltevorrichtung |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220372750A1 (en) * | 2021-05-18 | 2022-11-24 | Stabilo Management B.V. | Modular wall system |
US11933043B2 (en) * | 2021-05-18 | 2024-03-19 | Stabilo Management B.V. | Modular wall system |
EP4407110A1 (fr) * | 2023-01-27 | 2024-07-31 | Kvadrat Acoustics A/S | Panneau de construction conçu pour être monté au plafond ou au mur d'une pièce et procédé de fabrication d'un tel panneau de construction |
WO2024156868A1 (fr) * | 2023-01-27 | 2024-08-02 | Kvadrat Acoustics A/S | Panneau de construction pouvant être monté sur un plafond ou un mur d'une pièce et procédé de fabrication d'un tel panneau de construction |
Also Published As
Publication number | Publication date |
---|---|
FR3113688A1 (fr) | 2022-03-04 |
FR3113688B1 (fr) | 2023-03-10 |
CN116981817A (zh) | 2023-10-31 |
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