FR2797657A1 - SHUTTER SYSTEM HAVING A ROLLING SHUTTER - Google Patents

Abstract

The invention relates to a shutter system. The roller shutter comprises two supports (2, 4) facing each other and a pin (3) rotatably mounted, at least one first end (52) is retractable. Each of the two opposite faces of the supports (2, 4) comprises a recess. The flap further comprises a mechanical assembly (16) fixable on one of the supports and comprising means for guiding in rotation the second end of the rotary axis (3), drive means (28) suitable for being housed in the recesses, means (32) for connecting the drive means to the second end of the rotating axis (3), and first fixing means (26); second fixing means (38) connected to the support capable of cooperating with the first fixing means (26) for fixing the mechanical assembly (16) on said support in a determined position, and a mechanical member that can be fixed on the second support for guiding in rotation the first retractable end (52) of the rotating axis (3).

Description

The present invention relates to a shutter system, and more

  particularly a shutter system comprising a rolling shutter, supports and a rotatably mounted pin intended to receive the rolling shutter. The roller shutters are fixed in the upper part of the openings of the buildings and the closing elements consist of slats. The slats are connected and hinged together according to their lateral edges, 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 deck. Generally, the bearings are fixed to the box on consoles and, at one or the other of the ends, near the console, a drive device of the winch type is mounted. The winch is driven by a crank, hanging on one of the lateral 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, the

in situ component.

  This operation consists in dismantling the retractable rotating axis of the shutter, then extracting 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 an easily removable roller shutter which can be extracted in a single operation

  the rotating axis and its drive means.

  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 rotating axis is able to pass through said recesses, and in that said flap further comprises: -a mechanical assembly fixable on one of the supports and comprising means for guiding in rotation the second end of the rotating axis, drive means able to be housed in the recesses to drive in rotation the second end of the rotary axis, means for connecting the drive means to the second end of the rotary axis, and first fixing means, - second fixing means connected to the support capable of cooperating rer with the first fixing means to fix the mechanical assembly on said support in a determined position, and - a mechanical member fixable on the second support to guide

  in rotation the first retractable end of the rotating axis.

  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 opposite faces are intended to allow the mounting of the rotating axis of the shutter with its supports and its drive 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 fixing means comprise a first flange capable of obstructing the recess at least partially, a splined wheel secured to said flange capable of passing through the recess, and the second fixing means, secured to the support, are suitable immobilizing said fluted wheel in rotation and in translation. Thus, according to another characteristic, a first flange is specially adapted to cover the recess of the support while ensuring with the latter a reliable connection, providing the system with the necessary rigidity. 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 drive means. 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, secured to the first flange and to the grooved wheel, on which a drive shaft is mounted, substantially perpendicular to the axis of the shutter,

  in a predetermined direction.

  It is understood that the fact of blocking the first flange and the splined wheel on the support makes it possible 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 flap by a rod of polygonal section, passing through 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 that these three

elements are linked in rotation.

  When the second end of the rotary axis of the flap is fixed on the first support, a mechanical member advantageously is 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.

  Other features and advantages of the invention will become apparent from the

  reading of the description given below, for information but not limitation, in

  reference to the appended drawings in which: - Figure 1 is a front elevation view of the rotating axis of the roller shutter on which the mechanical assembly is fixed at the second end, and the first retracted end of which is engaged in the recess of the second support, - Figure 2 is a front elevation 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 o the first end is retracted and the second flange positioned opposite the second support, - Figure 3 is a sectional view along line 111-111 of Figure 2 of the flange enclosing the fluted wheel, and - Figure 4 is a front elevation view of the roller shutter o

  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 rectangular parallelepiped shape. At least one of the faces of the parallelepiped has a recess on at least part of its surface. The brackets are fixed relative to each other and they are arranged so that their recesses 6 and 8 are opposite one another. These recesses are usually circular in shape. The brackets also have a hole 10 through which the motor shaft 12 of the shutter, making it possible to control the shutter 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 brackets 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, passing through 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 flap. 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 shutter, 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 coincident with the axis A1 of the flap. The motor shaft 12 of the winch is retractable and it is fixed to the periphery of the winch, perpendicular to

its axis.

  A rod 32 of polygonal section is fixed to 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 into the recess 6 so that the edges of the rear part 22 of the flange come to bear on the edges of the recess 6. The diameter of the recess 6 is less 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 grooved wheel 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 with reference to Figure 3. The diameter of the flange is substantially 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 jaw 40, 44, diametrically opposite connected together by an axis. The jaw, 40, is fixed on the flange 38; The other jaw, 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 grooved wheel 26. In addition, the grooves 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.

  It is understood that when the screw is tightened the jaw 44 integral with the screw comes to bear on the grooved wheel and the grooves interpenetrate. When the grooved wheel forms a stop, the jaw 44 secured to the screw 42 comes to a standstill and the flange is driven in turn since it can slide in translation between the bulges 43. In this way, the jaw 40 fixed on the flange comes resting on the splined 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 in rotation the splined wheel 26 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 case where the drive crank of the motor shaft (not shown) is not plumb with the rotating axis 3 of the roller shutter, it is necessary to offset the bearing 14 of the motor shaft and consequently to rotate the motor shaft relative to the axis A1 of the shutter and to maintain it

in this position.

  To do this, the jaws of the flange 38 are loosened, the winch 28 is adjusted to 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 locking the mechanical assembly 16 in translation. When the flange 18 is in abutment on the console 2, the mechanical assembly 16 is immobilized in translation in the direction of the arrow Fl. The shoulder 27 of the splined wheel 26 serves as a stop for the lateral edges 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 integral with the console 2. To complete the assembly, it is necessary to fix the first retractable end 52 of the axis 3 of the shutter 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 stretched, introduced into 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 of all, 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, the screw 42 is unscrewed so as to release the splined wheel 26 both in rotation and in translation. The end of the jaw must be sufficiently spaced 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 from the motor shaft 12. The mechanical assembly 16 and the rotating axis 3 of the flap are moved in translation in the direction of the 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 from 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 into the console 2. It goes without saying that it would not go beyond the ambit of the invention to insert 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, an assembly that can be inserted into

  console 2 through recess 1.

Claims (9)

  1. Shutter system comprising a rolling shutter comprising two supports (2, 4) facing each other and an axis (3) rotatably mounted, at least one first end (52) of which is retractable and on which s rolls up the panel of articulated slats, characterized in that: - each of the two opposite faces of the supports (2, 4) comprises a recess (6, 8) by which, in part, the rotating axis (3) is capable of pass through said recesses (6,8), and in that said flap further comprises: a mechanical assembly (16) fixable on one of the supports and comprising means (18, 20) for guiding the second end in rotation ( 36) of the rotary axis (3), drive means (12, 28) capable of being 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 rotating axis (3), and first fixing means (18, 26), - the second my fixing means (38, 40, 42, 44) connected to the support capable of cooperating with the first fixing means (26) for fixing the mechanical assembly (16) on said support in a determined position, and - a mechanical member (54) fixable on the second support to guide in rotation the first end (52) retractable of the axis (3) rotating. 2. Shutter system according to claim 1, characterized in that the first fixing means comprise a first flange (18) capable of at least partially obstructing the recess, a splined wheel (26) integral with said flange capable of crossing 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).   3. Shutter system according to claim 2, characterized in that the means for guiding in rotation the end of the axis rotating in rotation comprise a first bearing (20) integral with the first flange (18).   4. 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.   5. 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) turning the shutter, crossing the bearing (20), to drive   said axis (3) of the flap at least in rotation.   6. Shutter system according to any one of claims 2   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.   7. 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.   8. shutter system according to claim 6, characterized in that the flange (38) comprises two elements, each supporting a jaw,   (40, 44) interconnected by an axis (42).   9. 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).