EP1077303A1 - Roller shutter system - Google Patents

Abstract

The revolving door for a building has two opposed supports (2,4) and a rotary axis (3) with one end (52) retractable. Each of the opposed faces of the supports has a recess. There are guides (28) for the shaft fitting in the recesses. The guides form part of a guide and drive assembly (16) with fixings (18,26) engaging secondary fixings (38,40) connected to the support to fix the assembly on the support.

Description

The present invention relates to a shutter system, and more particularly a shutter system comprising a rolling shutter, supports and a rotatably mounted axis intended to receive the roller shutter.

The roller shutters are fixed in the upper part of the building openings and the closing elements consist of slats. The slats are connected and hinged together according to their edges lateral, forming a panel or apron which is wound on a rotating axis located in a box attached to the top of the opening.

The trunk includes, at each of its ends, two bearings in which the axis is rotated to lower or raise the apron.

Generally, the bearings are fixed to the box on consoles and, at either end, near the console, you mount a winch type drive device. The winch is driven by a crank, hanging on one of the side edges of the opening, so to be reached by a standing user.

Usually, classic roller shutters are pre-assembled in the trunk which is fixed, with its extensions, directly in the framing of the opening.

However, technical maintenance interventions are necessary on certain components of the shutter and, to do this, we dismantle the in situ component.

This operation consists in dismantling the retractable rotating axis from the shutter, then extract it from the two bearings. Only then does disassembly winch is made possible.

All of these operations require intervention time relatively long.

In addition, these operations are all the more difficult as the operator is in an uncomfortable position.

An object of the present invention is to provide a rolling shutter easily removable in that it can be extracted in a single operation the rotating axis and its drive means.

• chacune des deux faces en regard des supports comprend un évidement par quoi, en partie, l'axe tournant est apte à traverser lesdits évidements,

   et en ce que ledit volet comprend en outre :

• un ensemble mécanique fixable sur l'un des supports et comprenant des moyens pour guider en rotation la deuxième extrémité de l'axe tournant, des moyens d'entraínement aptes à être logés dans les évidements pour entraíner en rotation la deuxième extrémité de l'axe tournant, des moyens pour relier les moyens d'entraínement à la deuxième extrémité de l'axe tournant, et des premiers moyens de fixation,
• des deuxièmes moyens de fixation reliés au support aptes à coopérer avec les premiers moyens de fixation pour fixer l'ensemble mécanique sur ledit support dans une position déterminée, et
• un organe mécanique fixable sur le deuxième support pour guider en rotation la première extrémité rétractable de l'axe tournant.

To achieve this object, in accordance with the invention, the shutter system comprises a rolling shutter comprising two supports facing each other, a pivotally mounted shaft of which at least one first end is retractable and on which is wound the panel of articulated slats,
characterized in that:

• each of the two opposite faces of the supports comprises a recess by which, in part, the rotary axis is able to pass through said recesses,

and in that said component further comprises:

• a mechanical assembly fixable on one of the supports and comprising means for guiding the second end of the rotary axis in rotation, drive means capable of being housed in the recesses to cause the second end of the axis to rotate rotating, means for connecting the drive means to the second end of the rotating axis, and first fixing means,
• second fixing means connected to the support capable of cooperating with the first fixing means for fixing the mechanical assembly to said support in a determined position, and
• a mechanical member which can be fixed on the second support to guide the first retractable end of the rotary axis in rotation.

Thus a characteristic of the roller shutter according to the invention resides in the method of assembling the different constituent parts.

The recesses in the two facing faces are intended to allow the mounting of the rotating axis of the shutter with its supports and its training means from the free space between the two recesses without having to intervene from the sides of the boot.

In addition to the recesses, advantageously the first means of fixing include a first flange capable of obstructing the recess at the at least partially, a splined wheel secured to said flange capable of pass through the recess, and the second fixing means, integral with the support, are capable of immobilizing in rotation and in translation said wheel grooved.

Thus, according to another characteristic, a first flange is specially adapted to cover the recess of the support while ensuring a reliable connection with the latter, providing the system with rigidity necessary. The fixing is carried out by the support of the flange on the support and by the connection between the flange part passing through the recess and the support. On the other hand, this flange part is grooved so as to fix the flange in a determined angular position. As will be explained in more detail, this characteristic allows blocking of the means training.

In addition, according to a preferred embodiment of the invention, the means for guiding the end of the rotating axis in rotation comprise a first bearing integral with the first flange.

The bearing into which the end of the rotating axis is introduced crosses the flange so as to lead to the other side.

Advantageously, the rotating axis of the shutter is driven by a winch, integral with the first flange and the splined wheel, on which is mounted a drive shaft, substantially perpendicular to the axis of the shutter, in a predetermined direction.

We understand that the fact of blocking the first flange and the wheel splined on the support allows to fix the position of the motor shaft in a given direction.

The motor shaft, according to another preferred embodiment of the invention, communicates a rotational movement to the winch which is connected to the end of the rotating axis of the shutter by a section rod polygonal, crossing the bearing, to drive said axis of the shutter in rotation.

It is understood that the rod of polygonal section cooperates with the winch and the end of the rotating axis of the flap so these three elements are linked in rotation.

When the second end of the rotating axis of the flap is fixed on the first support, a mechanical member is advantageously provided comprising a second flange of which a second bearing is integral, said second flange being able to obstruct at least part of the recess of the second support, said bearing receiving the second retractable end of the rotating axis of the shutter.

The attachment of the second flange is possible when the end of the rotating axis of the shutter is retracted.

• la Figure 1 est une vue en élévation de face de l'axe tournant du volet roulant sur lequel est fixé l'ensemble mécanique à la deuxième extrémité, et dont la première extrémité rétractée est engagée dans l'évidement du deuxième support,
• la Figure 2 est une vue en élévation de face de l'axe tournant du volet roulant muni de l'ensemble mécanique à sa deuxième extrémité et fixé au premier support, et où la première extrémité est rétractée et le deuxième flasque positionné en regard du deuxième support,
• la Figure 3 est une vue en coupe selon la ligne III-III de la Figure 2 de la bride enserrant la roue cannelée, et
• la Figure 4 est une vue en élévation de face du volet roulant où l'axe tournant est maintenu à ses deux extrémités.

Other features and advantages of the invention will emerge on reading the description given below, by way of indication but not limitation, with reference to the appended drawings in which:

• FIG. 1 is a front elevation view of the rotating axis of the rolling shutter on which the mechanical assembly is fixed to the second end, and the first retracted end of which is engaged in the recess of the second support,
• Figure 2 is a front elevational view of the rotating axis of the roller shutter provided with the mechanical assembly at its second end and fixed to the first support, and where the first end is retracted and the second flange positioned opposite the second support,
• Figure 3 is a sectional view along line III-III of Figure 2 of the flange enclosing the splined wheel, and
• Figure 4 is a front elevational view of the roller shutter where the rotating axis is held at its two ends.

By first referring to Figure 1 we will describe a mode of realization of the roller shutter according to the invention.

The roller shutter has two supports 2, 4 called "consoles" constituting the two ends of the trunk in which the flap is wound.

The consoles 2, 4 serve both as a frame for the trunk and support for the component parts of the flap.

The consoles have a substantially parallelepiped shape rectangle. At least one of the faces of the parallelepiped has a recess on at least part of its surface.

The consoles are fixed relative to each other and they are arranged so that their recesses 6 and 8 are facing each other one of the other. These recesses are usually circular in shape. The consoles also have a hole 10 through which the motor shaft 12 of the shutter, allowing the shutter to be controlled in rotation, is maintained partly by a bearing 14.

We will now describe in detail the mechanical assembly 16 which will be inserted into one of the consoles through the recess made on the opposite faces.

The mechanical assembly 16 comprises a circular flange 18 at center of which a bearing 20 is mounted.

The bearing 20 is in the form of a ring, integral with the flange, crossing the flange so that it opens on both sides of the wall of the flange. The axis of the bearing coincides with the axis of the flange and the axis A1 of the shutter. The rear part 22 of the flange is extended by a crown 24 on which is fixed a grooved wheel 26 having a shoulder 27. The axis of the crown and the axis of the grooved wheel are also confused with the axis A1 of the shutter.

The flange 18, the bearing 20, the crown 24 and the grooved wheel 26 form the same plastic part, preferably injected.

The crown 24 is in the form of a ring in which three grooves have been formed, parallel to the axis of the flap, of so as to block the winch 28 in rotation about the axis A1 of the shutter. The winch includes ribs (not shown) which slide in translation in the grooves to block it by keying.

The winch 28 is of cylindrical symmetry and its axis is also confused with the axis A1 of the shutter. The winch motor shaft 12 is retractable and it attaches to the periphery of the winch, perpendicular to its axis.

A rod 32 of polygonal section is fixed on the pulley of the winch 28 along the rotating axis of the flap. This rod 32 is integral in rotation with the pulley and extends through the bearing to protrude on the front face 34 flange 18.

The end of the polygonal rod 32 cooperates with the internal part of the end 36 of the axis so as to be integral in rotation with this end which is itself integral with the axis of the roller shutter.

The external part of the end of the axis 36 is supported in the bearing 20 so that the axis is supported and guided in rotation.

The space available between the rod 32 and the internal part of the bearing 20 is sufficient to allow passage of the end of the axis 36 without no friction.

The winch 28, the crown 24 and the grooved wheel 26 have dimensions compatible with the diameter of the recess 6 of the console. Thus, the mechanical assembly fixed on the end of the axis of the flap is inserted in the recess 6 so that the edges of the rear part 22 of the flange come to rest on the edges of the recess 6. The diameter of the recess 6 is smaller than the diameter of the flange 18 so that the face of the console constitutes a stop for the flange 18.

In this position and with reference to Figures 2 and 3, the wheel grooved 26 is plumb with the second fixing means comprising a flange 38 provided with at least two jaws 40, 44 enclosing the grooved wheel to immobilize it. The flange is integral with the console and located in a plane parallel to the face having the recess 6.

The flange is wedged between the bulges 45 and held between the nipples 47.

Consequently, the flange is fixed in rotation along the axis A1 of the shutter. However, it can slide in translation along an axis whose direction is perpendicular to the axis A1.

The flange is described in detail below more particularly in reference to Figure 3.

The diameter of the flange is roughly equivalent to that of the recess 6 so as to allow the passage of the winch 28 and the crown 24 through the flange.

The flange 38, integral with the console 2, comprises two elements, each supporting a jaws 40, 44, diametrically opposed connected between them by an axis. The jaw, 40, is fixed on the flange 38; the other bit, 44, is movable in a radial direction under the action of a screw 42 which passes through a internal thread (not shown) formed in the flange.

The jaws 40, 44 have the shape of an arc of a circle coinciding with the splined wheel 26. In addition, the splines 46 formed on the jaws have the same shape as the grooves 48 of the grooved wheel so as to to be able to interpenetrate.

We understand that when the screw is tightened the jaw 44 secured of the screw comes to rest on the splined wheel and the splines interpenetrate. When the grooved wheel forms a stop, the jaw 44 secured to the screw 42 stops and the flange is driven in turn since it can slide in translation between the bulges 43. From this way, the jaw 40 fixed on the flange bears on the grooved wheel 26 in the part diametrically opposite to the first jaw 44.

The flange thus tightened and fixed in rotation relative to the axis A1 of the flap, also immobilizes the splined wheel 26 in rotation and, thereby even, the mechanical assembly 16.

Thus the direction of the motor shaft 12 of the winch can be fixed in an adjustable angular position relative to the console 2.

In the event that the drive shaft of the motor shaft (not shown) is not in line with the rotating axis 3 of the roller shutter, it is necessary to shift the bearing 14 of the motor shaft and therefore rotate the motor shaft relative to the axis A1 of the shutter and maintain it in this position.

To do this, we loosen the jaws of the flange 38, we adjust the winch 28 in the desired position and the jaws of the flange 38 are tightened in the new position.

The means which make it possible to fix the mechanical assembly in rotation have been described with reference to Figure 3.

Referring again to Figure 2, the splined wheel 26 has a shoulder 27 for blocking the mechanical assembly 16 in translation. When the flange 18 is pressing on the console 2, the mechanical assembly 16 is immobilized in translation in the direction of the arrow F1. The shoulder 27 of the splined wheel 26 serves as a stop at the edges side of the jaws which, being fixed, immobilize in translation in the direction of arrow F2 the mechanical assembly 16.

Thus the rotating axis 3 of the shutter and the mechanical assembly 16 are attached to the console 2. To complete the assembly, it is necessary to fix the first retractable end 52 of the axis 3 of the flap to the second console 4.

The mechanical member 54 consists of a second flange 56 in which is inserted, in its central part, a second bearing 58.

The flange 56 is applied to the console 4 and is fixed by screws 60 so that the bearing is in the axis A1 of the roller shutter.

Advantageously, the first flange 18 and the second flange 56 have a circular shape and they obstruct the recess first and second supports respectively.

The retractable end 52 of the axis of the flap, initially in a retracted position, is telescopically extended, inserted in the second bearing 58 and fixed by a screw 61 so that it can be guided in rotation.

Thus, with reference to Figure 4, the axis of the flap is maintained and guided in rotation at its two ends by the bearings 20 and 58.

Like the assembly, the dismantling of the shutter is carried out easily in a reverse approach.

First, the retractable end 52 of the rotating axis 3 of the flap is retracted so as to allow access to the second flange 56 and to dismantle it.

Disassembly of the second flange frees the recess 8 of the second console 4.

Then we unscrew the screw 42 so as to release the splined wheel 26 both in rotation and in translation. The end of the jaw must be wide enough to allow the shoulder 27 of the wheel grooved 26 to cross the flange.

The motor shaft 12 is detached from the winch 28 by removing the bearing 14 of the motor shaft 12. The mechanical assembly 16 and the rotary axis 3 of the flap are moved in translation in the direction of arrow F2 so that the first retractable end is introduced into the recess 8 of the console 4 until it comes into abutment against the internal wall 62.

In this position, the mechanical assembly 16 is released from the console 2 and the recess 6 so that the pivoting of the rotating axis 3 of the shutter makes it possible to extract the mechanical assembly 16 and the rotating axis 3 from the shutter.

In the context of the embodiment which has just been described, the mechanical assembly 16 has been inserted in the console 2. It goes without saying that we would not go beyond the scope of the invention by inserting the assembly mechanical in the console 4.

According to a particular embodiment, the means mechanical drives are replaced by electrical means.

In this case, the winch 28 is replaced by an electric motor and a reduction gear so as to actuate in rotation the rotary axis 3 of the shutter. The electric motor and the reduction gear are fixed on the crown 24 and constitute, with the flange 18 and the bearing 20, a unit insertable into console 2 through recess 1.

Claims (9)

Shutter system comprising a rolling shutter comprising two supports (2, 4) facing each other and an axis (3) rotatably mounted of which at least one first end (52) is retractable and on which the hinged slat panel,
characterized in that: each of the two opposite faces of the supports (2, 4) comprises a recess (6, 8) whereby, in part, the rotating axis (3) is able to pass through said recesses (6,8), and in that said component further comprises: a mechanical assembly (16) fixable on one of the supports and comprising means (18, 20) for guiding in rotation the second end (36) of the rotary axis (3), drive means (12, 28 ) able to be housed in the recesses (6, 8) for rotating the second end (36) of the rotary axis, means (32) for connecting the drive means to the second end (36) of the 'axis (3) rotating, and first fixing means (18, 26), second fixing means (38, 40, 42, 44) connected to the support able to cooperate with the first fixing means (26) for fixing the mechanical assembly (16) on said support in a determined position, and a mechanical member (54) fixed on the second support for guiding in rotation the first retractable end (52) of the rotating axis (3). Shutter system according to claim 1, characterized in that the first fixing means comprise a first flange (18) able to at least partially obstruct the recess, a splined wheel (26) integral with said flange able to pass through the recess, and in that the second fixing means (38, 40, 42, 44), integral with the support, are able to immobilize in rotation and in translation said splined wheel (26). Shutter system according to claim 2, characterized in that the means for guiding in rotation the end of the axis rotating in rotation include a first bearing (20) integral with the first flange (18). Shutter system according to any one of the claims 2 or 3, characterized in that the drive means comprise a winch (28), integral with the first flange (18) and the splined wheel (26), on which is mounted a motor shaft (12), substantially perpendicularly to the axis (3) of the flap, in a predetermined direction. Shutter system according to claim 4, characterized in that a rod (32) of polygonal section connects the winch (28) and the end (36) of the axis (3) rotating the shutter, crossing the bearing (20), to drive said axis (3) of the flap at least in rotation. Shutter system according to any one of claims 2 to 5, characterized in that the second fixing means comprise a flange (38) provided with at least two jaws (40, 44) enclosing the wheel grooved (26) to immobilize it. Shutter system according to any one of claims 3 6, characterized in that the mechanical member (54) comprises a second flange (56) of which a second bearing (58) is integral, said second flange (56) being able to obstruct at least part of the recess of the second support, said bearing (58) receiving the first end (52) retractable from the rotating axis of the flap. Shutter system according to claim 6, characterized in that that the flange (38) comprises two elements, each supporting a jaw, (40, 44) interconnected by an axis (42). Shutter system according to any one of claims 7 and 8, characterized in that the first and second flanges (18, 56) have a circular shape and in that they obstruct the recess respectively of the first and second supports (6, 8).

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