EP1977070B1 - Support device for roller blind and roller blind assembly to be mounted with such a device - Google Patents

Description

The invention relates to a support device for a shutter which comprises an apron wound on a shaft, comprising a flange at each end of the shaft, the apron can be unwound, after installation in a trunk or a reservation in mind an opening provided on its sides with slides for guiding the apron, an assembly means being provided on each flange to cooperate with a complementary assembly means provided on a tab adapted to be engaged at the head of the slide so as to support the tree by the flasks.

DE 102 25 973 A1 discloses a roller shutter support device comprising a flange at each end of the shutter shaft. Each flange is mounted fixed, without the possibility of adjustment in depth, on a slide by means of a connecting element, square, blocked on the flange. According to a variant, a deep sliding assembly for the single shaft is provided so that the flap is always vertical to the slides as it winds or unwinds.

DE 93 02 934 U1 also shows a provision allowing a deep displacement of the single shaft with respect to the slides.

The traditional shutters are usually delivered on site in separate parts or spare parts, and then assembled and assembled by a professional on this site. Today, the tendency is to prepare more and more shutters in the workshop in order to minimize the work force on site because, on the one hand, the site staff is less and less trained and specialized in the field. good fitting and adjustment of the shutter and, secondly, the hourly rate is more important. The implementation and adjustment of such components must be redesigned to become easier. In particular, the number of parts to be mounted on site should be as small as possible.

Furthermore, particularly in the case of a reservation in the shell which always respects a minimum of space at the winding diameter, the position of the slides relative to the winding axis remains variable. The slide usually passes in front of the high cross of the carpentry and comes out in the reservation or in a box. Depending on the thickness of insulation placed on the inside of the wall, the horizontal offset between the winding axis and the slide will be variable. It is therefore advantageous to provide a setting, which will be carried out by the staff on site.

The invention aims to provide a rolling shutter support device that allows the installer to easily adjust in depth the position of the entire deck, shaft and flanges, depending on the different configurations encountered.

Another object of the invention is to provide a roller shutter support device enabling the deck and the winding shaft to be put into place quickly and easily, with a number of assembly and adjustment operations. reduced on the site.

According to the invention, a support device for a shutter as defined above is characterized in that the flange assembly means and the complementary assembly means of the tab are provided to allow a depth adjustment of the position of the shaft relative to the slides, so that a set previously assembled in the workshop, constituted at least by the apron wound on the shaft mounted between the flanges, can be installed on a site by assembling the flanges and legs with deep adjustment of the position of the shaft and roller shutter assembly.

The means for assembling a flange is advantageously provided on its outer face.

The means for assembling a flange may comprise at least one integral lug of the flange, while the complementary assembly means of the lug may comprise at least one notch adapted to receive the lug.

Advantageously, each lug comprises a stop means at its free end. This abutment means may be formed by a flange.

Preferably, the tab comprises at least two sets of notches, each series having a different offset with respect to the axis of the tab. Generally each series has at least two notches, while the flange comprises at least two parallel pins adapted to be received in one of the series of notches.

The tab which has several sets of notches allows several flange positions offset in depth relative to the leg and the slide. The tab can be made by cutting a sheet, the notches being made in the edge of the sheet.

Two sets of notches can be made laterally on each side of a leg. A first series may be in line with the vertical axis of the leg and another series is offset with respect to this vertical axis. Several series of notches with different offsets can be provided to increase the possibilities of adjustment in depth of the roller shutter shaft.

The flange may comprise at least one tongue adapted to be deformed, after mounting on the tab, to oppose the disassembly of the tab.

The tab can be made by cutting a sheet, the notches being made in the edge of the sheet.

The invention also relates to a rolling shutter assembly comprising a shaft, an apron to be wound on this shaft and a flange at each end of the shaft, to be mounted with a support device as defined above, characterized in that the apron is wound on the shaft between the flanges for delivery to a construction site, and in that each flange comprises an assembly means for cooperating with a complementary assembly means provided on a clean tab to be engaged at the head of a slide, and to allow a depth adjustment of the position of the shaft relative to the slides, so that a set previously assembled in the workshop, constituted at least by the apron wound on the shaft mounted between the flanges, can be installed on a site by assembling flanges and tabs with depth adjustment of the position of the shaft and the shutter assembly.

Advantageously, each flange comprises, on its outer face, the assembly means for cooperating with the complementary assembly means provided on the tab.

The roller shutter assembly can be prepared in the workshop, transported in bulk, then mounted in a trunk or a reservation by fixing the flanges on the legs, themselves mounted on slides.

Advantageously, a plate is provided against the outer face of the flange opposite the maneuver to cooperate with a projecting end of the shaft and prevent the shaft from escaping a bearing flange, both at the time of transport than during the operation. This plate may have a clean notch to be clipped into a groove of the projecting end of the shaft.

Preferably, the drive device is mounted in the workshop against the outer face of the flange side maneuver for delivery to a construction site.

In the case of a manually operated drive device, a plate for blocking the rotation of the shaft during transport can be provided against the outer face of the flange maneuvering, this plate being removably fixed against the face outside of flange and having a clean notch to retain in rotation a square drive axis of the shaft.

Other features and advantages of the invention will appear in the following description of an embodiment with reference to the accompanying drawings but which has no limiting character.

• Fig. 1 est une vue en perspective éclatée d'un volet roulant selon l'invention.
• Fig. 2 est une vue schématique en coupe verticale d'un volet roulant mis en place dans une ouverture, selon un enroulement intérieur.
• Fig. 3 est une vue en coupe verticale, à plus grande échelle, d'un volet roulant mis en place selon un enroulement extérieur « en point d'interrogation ».
• Fig. 4 est une vue partielle en perspective éclatée à plus grande échelle de la zone d'assemblage de la patte et du flasque.
• Fig. 5 est une vue en élévation latérale partielle du montage, selon l'invention, d'un flasque sur une patte selon une première position relative, et
• Fig. 6 est une vue en élévation latérale partielle du montage, selon l'invention, d'un flasque sur une patte selon une deuxième position relative.

On these drawings:

• Fig. 1 is an exploded perspective view of a shutter according to the invention.
• Fig. 2 is a schematic view in vertical section of a shutter placed in an opening, according to an inner winding.
• Fig. 3 is a vertical sectional view, on a larger scale, of a roller shutter set up according to a "question mark" outer winding.
• Fig. 4 is a partial perspective view exploded on a larger scale of the assembly zone of the leg and the flange.
• Fig. 5 is a partial side elevational view of the assembly, according to the invention, of a flange on a tab in a first relative position, and
• Fig. 6 is a partial side elevational view of the assembly, according to the invention, of a flange on a tab in a second relative position.

To refer at Fig. 1 to 3 , we can see a set M roller shutter intended to be placed in a housing L provided above an opening O to be closed. The housing L can be located in a box C ( Fig.2 ) or in a reservation R ( Fig.3 ) masonry.

The assembly M comprises a winding shaft 1 located between two parallel flanges 2.

The term "flange" used in the description and claims means a plate whose perimeter completely surrounds that of the deck when fully wound on the shaft. No area of the wrapped deck is located radially outside the perimeter of the flange, which ensures the maintenance of the rolled deck and its guidance during unwinding.

An apron B, wound on the shaft 1, can be unwound, after installation of the assembly M in the opening O. Vertical slides 5 are provided on the sides of the opening for guiding the deck. A drive device 3 is installed at one end of the shaft 1, on the side of a flange opposite to the deck B, so as to allow the rotation of the shaft. The drive device 3 can be manually operated and consists of a winch schematically represented on Fig.1 , actuated using a rod not shown, or by a pulley (not shown) actuated to using a strap. The drive device 3 may also be constituted by a motor, generally an electric motor.

The shaft 1, the apron B wound on the shaft 1, the flanges 2 in which are mounted the ends of the shaft 1, and preferably the drive device 3, form a set prepared in the workshop, transported en bloc and ready to be mounted as.

The flange 2 located on the opposite side to the drive, that is to say on the left according to Fig.1 , comprises in its central zone a bearing 2c for a rotatable mounting of a protruding end 1a of the shaft 1. The end 1a has a circular groove 1b which is on the outside of the flange 2 when the end 1a through the landing 2c.

A plate G, in particular made of plastic, is provided for locking in translation of the shaft 1 relative to the flange 2. The plate G is disposed against the outer face of the flange 2, opposite side to the maneuver. The plate G cooperates with the projecting end of the shaft and prevents the shaft from escaping the bearing, both during transport and during operation. This plate G comprises, at one end, a circular notch Ga limited by relatively flexible branches adapted to be clipped into the groove 1b of the end 1a which protrudes from the flange after assembly. An enlarged second end Gb of the plate G has a window facilitating the introduction and extraction. This plate G is provided that the maneuver is provided by winch, pulley with strap, or motor.

In the case where the flap is provided with a manual control, the drive device 3 being formed by a winch or a pulley with strap, the side flange 2 comprises a bearing 2d for rotatably supporting the shaft 1. The drive device 3 is mounted against the outer face of the flange 2 and comprises at its center a square-rotation drive opening, traversed by a square axis S rotational connection between a nozzle connected to the tubular shaft 1 and the drive device 3. It is then possible to provide against the outer face of the flange 2 on the maneuvering side another plate G2 ( Fig.1 ) to block the rotation of the shaft during transport. This plate is removably fixed against the outer face of the flange and comprises a rectangular notch G2a adapted to cap and retain in rotation the square shaft S drive shaft 1. The plate G2 may comprise a pin G2b own to engage in a hole F of the flange for stopping rotation. The plate G2 is removed when the rolling shutter is put into service.

In the case where the shutter is controlled by an electric motor, the problem of stopping rotation of the shaft 1 during transport does not arise because the motor head is locked in rotation directly on the flange. The motor shaft passes through the flange and is connected to the shaft 1.

The flanges 2 are preferably of constant thickness and made from cut elements in sheet metal plates, then optionally shaped by folding. The flanges 2 may include ears 4 for connection with accessories.

Each flange 2 comprises on the lower part of its outer face, opposite to the shaft 1, an assembly means A1 advantageously formed by lugs 2a. The lugs 2a are aligned vertically when the flange 2 is in place. These lugs 2a may be constituted by cylindrical parts made in bar turning and riveted to the flange. The lugs 2a have at their free end a collar 2b forming a longitudinal stop.

As a variant, in particular for an economical embodiment, the lugs may be punched and stamped directly into the sheet metal flange, for example in the form of raised flaps.

The assembly means A1 flange is provided to cooperate with a complementary assembly means A2 provided on a lug 6 to be engaged at the head of the slide 5 to support the shaft 1 by the flanges.

The slides 5 are fixed vertically, for example on a joinery 7 of the opening O to be equipped, and are provided with a rear cage forming a housing 5a ( Fig.1 ) to receive a tab 6. A flared guide tip for the flap, or tulip T, is preferably mounted at the upper end of each slide 5.

Each tab 6, more particularly visible on Fig. 4 can be made by cutting a sheet metal plate. The tab 6 comprises a lower part 6a intended to cooperate with the upper part of a slide 5. The lower part 6a has a tapered end facilitating its insertion into the cage 5a of the slide 5. The upper part 6b of each tab 6 is offset transversely to the vertical axis of the lower portion 6a. Parts 6a, 6b are generally in the same plane.

Fingers 6c1 and 6c2 extend orthogonally on either side of the upper portion 6b, which they are integral. The spaces between the fingers 6c1, 6c2, or above these fingers, constitute notches 6e1, 6e2. At least some of these notches are limited, at their end remote from the vertical axis of the portion 6b, by teeth 6d projecting upwards. The edge upper 6r of a tooth 6d preferably forms an inclined ramp rising from the outside to the notch.

The zone located at half-length of the fingers 6c1 is in line with the vertical central line of the tab 6. A first series or column of notches 6e1 is thus defined, which is in the vertical axis of the lower part 6a of the paw.

The half-length zone of the fingers 6c2 is offset in a direction orthogonal to the tab 6, in the plane of this tab. A second series or column of notches 6e2 is thus defined, which is offset by a distance X ( Fig.5 and 6 ) relative to the vertical axis of the lower portion 6a of the tab.

In the example shown on Fig.4 three fingers 6c1, 6c2 vertically spaced are shown, the lower finger and the upper finger having a tooth 6d end with inclined ramp 6r. The number of fingers could be different, especially greater than three.

The distance between the lower and upper slots 6e1 or 6e2 is equal to the distance between the lugs 2a. A flange 2 can be assembled to a lug 6 by fitting the lugs 2a either in the extreme notches (lower and upper) 6e1 or in the extreme notches 6e2.

The fingers 6c2 have been represented with a limited length in horizontal offset, so that only one notch 6e2 is formed on each finger. Of course, the fingers 6c2 could have a longer length and have several notches or notches offset on each finger in a direction orthogonal to the vertical axis of the tab 6, in its plane. Such an arrangement would make it possible to define different offsets with respect to the vertical axis of the lug 6, and to increase the possibilities of adjustment in depth.

The tabs 6 comprise, at a level lower than that of the fingers 6c1, 6c2, openings 6f, punched in the central portion of the tabs, used to lock vertically the tab in the slide.

Tongues 2e are pre-cut in each flange 2 and remain attached to the flange along one side. The tabs 2e are provided to be on either side of the portion 6b of the tab 6, and opposite a notch 6e1 or 6e2, when the tab 6 is assembled to a flange 2.

The mounting of a roller shutter assembly with the support device of the invention can be carried out as follows.

In the workshop, the rolling shutter assembly is prepared with the rolled apron B, between the flanges 2, on the shaft 1 which is engaged at its end 1a. in the bearing 2c of the flange 2. The drive device 3 is mounted against the outer face of the flange 2 on the operating side.

In the case of manual control, winch or pulley with strap, the shaft 1 is rotatably supported by the bearing 2d. A plate G2 may be placed against the outer face of the flange on the operating side to lock the shaft 1 in rotation relative to the flanges during transport.

In the case of a motorization, the motor head is locked in rotation directly on the outer face of the flange 2 maneuvering side. The motor shaft passes through the flange and is connected to the shaft 1.

The set prepared in the workshop is delivered with tabs 6 corresponding to the flanges 2, and slides 5.

At the construction site, the installer starts by placing the slides 5 in the opening to be fitted, for example on the uprights or typed by a joinery 7. The tabs 6 are installed at the top of the slides 5, by passing the tab 6 and the tulip T inside the box C or the reservation R. For this purpose, the lower parts 6a of the tabs 6 are driven into the slots 5a of the slides 5. The installer can be brought during this operation to cut the slides 5 in length, for example at the end opposite to that provided with the tab, which gives a vertical adjustment parameter.

Since the legs 6 comprise at least two sets of distinct locations 6e1 or 6e2 for the pins 2a, the installer can choose the series of locations best suited to the situation. It thus has a second parameter of adjustment in the direction of the depth by a simple reversal of the leg 6.

The device also allows adaptation to inner or outer windings in the direction of introduction of the flanges in the box or the reservation.

In the case of mounting with a C-box ( Fig.2 and 6 ) being able to receive the inner winding apron, the lug 6 will be mounted in the slide in a position aligned vertically with the maximum winding diameter of the apron. The lugs 2a will be nested in the notches 6e1.

In the case of an assembly using an outer winding called "question mark" ( Fig. 3 and 5 ), leg 6 will be returned in relation to Fig.6 and mounted in the slider 5 so that the upper part 6b of the tab 6 is deported inwards ( Fig. 5 ). The lugs 2a will be nested in the notches 6e2.

This operation is facilitated by the structure of the legs 6. The simple fact of turning the legs 6 can switch from one setting to another.

The installer then takes the roller shutter assembly formed of the shaft 1, the rolled apron B, the flanges 2 and the drive device 3, and fits the fastening lugs 2a in the notches 6e1 or 6e2. The ramps 6r of the teeth 6d facilitate this operation since it is possible to put the lugs 2a on the ramps 6r and push the roller shutter assembly until the lugs 2a fall into the notches 6e1 or 6e2.

To lock the system once assembled, the installer deforms using a screwdriver blade, or equivalent, at least one tab 2 of the material of the flange so that it comes to oppose the disassembly direction of the leg 6. Alternatively, the tongue could form a resilient pawl that fades during the descent of the fingers and returns to the locking position after crossing.

When the installation is complete, the installer then deforms a portion of slide opposite an opening 6f so as to retain the tab 6 against an outlet of the slide 5.

In the case of a drive device 3 with manual control, the installer completes the installation by removing the plate G2, and setting up a control rod for a winch, or a strap for a pulley.

In the case of a motorisation, the installer finishes the installation by the electrical connection of the motor.

The flanges 2 have the function of keeping the apron B well aligned during transport from the workshop to the site; they allow, after the installation of the shutter, to support the winding shaft 1 in the trunk or the reservation and to ensure the continuity of the guidance of the deck when it descends and goes backstage.

This set allows a quick assembly, and reduces the risk of error on site and the risk of workmanship.

The invention makes it possible to deliver on site a shutter which is already prefabricated in the factory.

Claims (16)

1. Support device for a roller blind that comprises an apron (B) rolled up on a shaft (1), comprising an end-piece (2) at each end of the shaft, the apron being able to be unrolled, after installation in a casing or a reservation at the head of an opening furnished on its sides with slots (5) for guiding the apron, an assembly means (A1) being provided on each end-piece to interact with a matching assembly means (A2) provided on a leg (6) suitable for being engaged at the head of a slot (5) in order to have the shaft (1) supported by the end-pieces, characterized in that the assembly means (A1) of the end-piece and the matching assembly means (A2) of the leg are designed to allow a depthwise adjustment of the position of the shaft (1) relative to the slots (5) so that an assembly that is preinstalled at the factory, consisting of at least the apron (B) rolled up on the shaft (1) mounted between the end-pieces (2), can be installed on a site by assembly of the end-pieces (2) and of the legs (6) with depthwise adjustment of the position of the shaft and of the roller blind assembly.
2. Device according to Claim 1, characterized in that the assembly means (A1) for assembling an end piece is provided on its outer face.
3. Device according to Claim 1 or 2, characterized in that the assembly means (A1) for assembling an end-piece comprises at least one lug (2a) secured to the end-piece, while the matching assembly means (A2) of the leg comprises at least one notch (6e1, 6e2) suitable for receiving the lug.
4. Device according to Claim 3, characterized in that each lug (2a) comprises an abutment means formed by a collar (2b) at its free end.
5. Device according to Claim 3 or 4, characterized in that the leg (6) comprises at least two series (6e1, 6e2) of notches, each series having a different offset relative to the axis of the leg.
6. Device according to Claim 5, characterized in that each series (6e1, 6e2) of notches comprises at least two notches, while the end-piece (2) comprises at least two parallel lugs (2a) suitable for being accommodated in one of the series of notches.
7. Device according to Claim 5 or 6, characterized in that the series of notches (6e1, 6e2) are produced laterally on each side of a leg, a first series (6e1) being level with the vertical axis of the leg (6) and at least one other series (6e2) being offset (X) relative to this vertical axis.
8. Device according to one of Claims 5 to 7, characterized in that several series of notches with different offsets are provided on the leg.
9. Device according to any one of the preceding claims, characterized in that each end-piece (2) comprises at least one tongue (2e) suitable for being deformed, after installation on the leg (6) in order to resist the removal of the leg.
10. Device according to any one of the preceding claims, characterized in that the leg (6) is made by cutting out a metal sheet, the notches being made in the edge of the metal sheet.
11. Roller blind assembly comprising a shaft (1), an apron (B) to be rolled up on this shaft and an end-piece (2) at each end of the shaft, to be installed with a support device according to any one of the preceding claims, characterized in that the apron (B) is rolled up on the shaft between the end-pieces for delivery to a site, and in that each end-piece comprises an assembly means (A1) for interacting with a matching assembly means provided on a leg suitable for being engaged at the head of a slot, and for allowing a depthwise adjustment of the position of the shaft relative to the slots, so that an assembly that is preinstalled at the factory, consisting of at least the apron rolled up on the shaft mounted between the end-pieces, can be installed on a site by assembly of the end-pieces and of the legs with depthwise adjustment of the position of the shaft and of the roller blind assembly.
12. Roller blind assembly according to Claim 11, characterized in that each end-piece (2) comprises, on its outer face, the assembly means (A1) for interacting with the matching assembly means provided on the leg.
13. Roller blind assembly according to Claim 11 or 12, characterized in that a plate (G) is provided against the outer face of the end-piece on the side opposite to the operation in order to interact with a protruding end (1a) of the shaft and prevent the shaft from escaping from a bearing (2c) of the end-piece, both during transport and during functioning.
14. Roller blind assembly according to Claim 13, characterized in that the plate (G) comprises a recess (Ga) suitable for being clipped into a groove (1b) of the protruding end of the shaft.
15. Roller blind assembly according to one of Claims 11 to 14, characterized in that the driving device (3) is installed at the factory against the outer face of the end-piece (2) on the operation side for delivery to a site.
16. Roller blind assembly according to Claim 15, provided with a manually controlled driving device, characterized in that a plate (G2) making it possible to prevent the shaft (1) from rotating during transport is provided against the outer face of the end-piece (2) on the operation side, this plate (G2) being removably attached against the outer face of the end-piece and comprising a recess (G2a) suitable for retaining in rotation a square spindle (S) for driving the shaft.

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