FR2657393A1 - Shutter assembly for bay window - Google Patents

Abstract

The subject of the present invention is a shutter assembly for a bay window or similar construction, comprising a roll shutter (S) designed to be wound around a winding shaft (7) contained in a lower housing formed in the bay window (2), a control system consisting of two winding drums (10) each mounted at one end of a control shaft (5) and coupled to a control motor (5) which can operate in both the winding and unwinding direction, and of two suspension elements (9) each fixed, at one end, to a winding drum (10) and, at their other end, to the ends of the top element of the roll shutter, of two guide rails (13) fixed to uprights separating certain faces of the bay window at its corners for guiding the ends of the roll shutter. According to the invention, the control system is located in the roof space (4) of the bay window in order to close the roll shutter (S) by operating the control motor (5) towards the top and to open this shutter by operating the motor (5) in the opposite direction and winding the winding shaft (7) towards the bottom, by means of the return action of the helical spring provided therein.

Description

The present invention relates to a shutter assembly installed or to be installed outside a projecting window and more particularly to a shutter which can open and close the projecting window with its curtain intended to be rolled up and stored by winding towards the bottom in a lower part of the window and deployed by lifting to close the window opening.

Recently, the cases of installation of a projecting window in the form of an assembly, formed of a block of metal product, outside a building, are increasing a lot. As types of these, one form is a three-sided projecting window composed of a front window and two side windows joined at right angles or diagonally, and another form is a two-sided projecting window whose side windows join at the front.

These windows being installed outside a building, they require means of protection against bad weather and crimes, and an ordinary shutter for them requires an independent assembly of a shutter frame composed of an upper frame to support a control system for rolling up and unrolling a curtain, two guide rails for it and a lower frame, and this results in a double installation in front of and around the window frame .

A combined product of a projecting window assembly with a shutter frame in front of a window frame is conceivable, but the first problem encountered with the shutter product is that when all the elements of the control system, such as winding shaft of a curtain and control motor, are contained in a shutter box or directly in a roof space of the assembly, the roof part becomes extremely large and the window jambs must be sufficiently large and robust to support the roof, and this results in a heavy construction of the assembly and a bad appearance of the projecting window.

The second problem also relates to the formation of the upright with slides for the shutter. In the case of an ordinary flat window, these can be installed on both sides of an opening, but in the case of a projecting window formed by three or two faces of window frames, the shutter must be guided along an upright interposed at the corner, and this upright must be much wider than a central upright of multiple shutters and reduces the effective opening of the window.

In addition, for the coaxial coupling of the winding shaft and the motor shaft, the corner angle must be less than 40 degrees for a conventional joint.

A 90-degree coupling joint exists, but it requires more coupling space in the upright, so the larger front width of the upright directly affects its appearance.

The third problem lies in the mode of operation of the shutter itself. A previous type of light construction shutter of a system with a curtain that can close a window opening by manual lifting from a box provided outside the window and open it by winding down in the box is present in Japanese Utility Model Application Bulletin 1-138098 and 55-165904. With these inventions, the casing of the shutter curtain must protrude inside a room, or, if it is used for a projecting window, protrude below the window, and it results not only that it deteriorates the appearance of the window but also that it has no intermediate means of operation between full opening and complete closing. Consequently, with a shutter control by an ordinary electrical system for a projecting window , no special opening and closing system has been presented which is suitable for a flap of the type with closing by elevation.

The object of the present invention is to present a new set of projecting windows in order to eliminate the drawbacks of the prior art in general and to meet the requirements relating to a combined shutter and a window in the form of a complete product by using a system. elevation of a shutter curtain, and therefore to provide various practical means of achieving the system, including the arrangement of elements as well as achievements corresponding to its operation.

The other object of the present invention is, in a projecting window combined with a shutter, by an improvement of means for supplying slides with uprights located at the corners of the window, to install the shutter curtain on the guide rails by eliminating the need for very complicated assembly operations and difficult disassembly of the slide for maintenance or replacement.

Another object of the present invention is that, in a projecting window combined with a shutter, the new shutter curtain is raised and lowered by a positive control mechanism instead of using its weight or a force of recall during its vertical movement to simplify and eliminate the helical spring located in the winding shaft.

The basic characteristic of the present invention is that a shutter assembly for a projecting window comprising a curtain intended to be wound around a winding shaft contained in a lower housing space formed in the projecting window, a control system consisting of two winding drums each mounted at one end of a drive shaft and coupled to a control motor operable in the winding direction and the direction of unwinding, and two suspension elements each fixed at one end to a winding drum and at the other end to one end of the head element of the shutter curtain, and two guide rails fixed on uprights separating faces of the window projecting at its corners for guiding the ends of the shutter curtain, is characterized in that the control system is placed in the roof space of the projecting window to close the flight curtain and, by operating up the control motor and open this curtain by operating in the opposite direction of the motor and winding down the winding shaft recalled by the helical spring provided therein.

And by providing the construction indicated above with various technical aspects, it is possible to produce a new set of shutter for projecting window of the elevation type.

In the shutter assembly of the present invention, various new compositions are used. First, a winding shaft of a shutter curtain is presented, a control shaft supporting the winding drums, a suspension element for the operation of the shutter curtain and relationships between them in their connections.

The first embodiment is presented as a means of coupling the control motor to the control shaft in the form of a universal joint placed at the corner of the projecting window. The second embodiment has an arrangement of intersection of the winding shafts at the corner of the projecting window with their ends one above the other. In the third embodiment, the axis of the control shaft carrying the winding drums is placed parallel to the vertical plane containing the winding shaft and on the outside of this plane, for winding the shutter curtain emitted outside of the winding shaft on the inside of the winding drum. The fourth embodiment presents a device for fixing the suspension element to the winding drum in which this element is a steel belt and the cylindrical winding drum is divided into two parts firmly holding the end of this belt . The main part provides an attachment zone formed by a flat central part with belt retaining means and inclined side parts which follow the belt. The secondary part provides a complementary part to the previous one fixed on it by a screw.

The second aspect of the present invention relates to the contact of the head element of a shutter curtain with the lower element of the roof to prevent the realization of a diagonal gap by means of a sealing device provided with 'cushion elements on at least one of the closing parts, corresponding to complete contact between the lower blade of the curtain and the floor surface in the case of an ordinary shutter.

Also corresponding to the case of the conventional shutter, a slot for the shutter curtain to pass is provided on the upper surface of the lower housing space, and two guide parts which move down from one another are provided along this slot for guiding the shutter curtain, this slot being covered by a plate provided at the top of the head element of the curtain.

The third aspect of the shutter assembly of the present invention relates to the control system contained in the roof space, and the first embodiment shows that the control motor is mounted on a support seat provided on an upper chassis of the projecting window and is removably mounted in the roof by means of a fixing plate fixed on its interior side and by fixing of the lower wing of this plate only to the support seat by screws.

The second embodiment is shown as a device for coupling the shaft of the control motor and the shaft of the winding roller of the shutter curtain, which device consists of a coupling shaft with a seal bar capable of r in it and be separated from the motor to allow easy maintenance around the motor and the winding drum. The third embodiment shows the winding drum enclosed in a box which serves as a support element for the drive shaft, and each of the boxes has pins for adjusting the winding of the belt on the drum. Door or cover access openings are also provided for maintenance of the control system.

The fourth aspect of a projecting window, although not limited to the shutter assembly of the present invention, relates generally to the construction of the guide rails. The guide rail consists of two symmetrical L-section elements with a long side wall and a short end wall in mutual engagement, with their end walls separably joined to form a normal groove for vertical guide of the curtain shutter. One element is formed in the outer front corner as part of an upright in the form of a longitudinal recess and the other element is a separate element formed as a complementary element intended to be engaged with the previous one. recesses in a row of receiving parts are formed on the end plate of said guide rail element, and, on the corresponding parts of the end plate of the upright, there is provided a row of engagement elements intended to be engaged with the receiving parts for assembling the two elements into a guide rail, the removable construction of which improves the capital problem of assembly and disassembly due to the length of the shutter curtain over the width of the opening.

For the new construction of the guide rail, according to the same principle, the engagement means can be modified for the use of a device for assembling the two end walls.

The shutter assembly according to the invention presents an additional improvement of the control system. The invention presents a type of shutter for a projecting window having a control system for positive control of the shutter curtain in the closing direction upwards and in the opening direction downwards along the guide rail. This system is characterized in that main parts of the control system, such as the control motor, winding shafts, control shafts, are also placed in the lower housing space of the projecting window to close and open positively. the shutter curtain by operating up and down the control motor, only a belt return roller being placed in the roof space. This eliminates the helical return spring provided in the winding shaft and allows the roof part located above to be of lighter and smaller construction.

The other features of the present invention are explained by the following non-limiting embodiments shown in the following drawings, in which - figs. 1 to 5 show external perspective representations of a combined shutter and a window of the present invention, - FIG. 1 is a general perspective representation of a projecting window, - FIG. 2 is an interior representation of a projecting window with its side windows at right angles to its front window, - FIG. 3 is a normal vertical section of the projecting window, - FIG. 4 is an interior perspective view of the lower housing space of the projecting window, FIG. 5 is a top view showing the arrangement of the winding shafts relative to the control shafts, - FIGS. 6 to 11 show a suspension element and its attachment to the winding drum, - FIG. 6 is a side view of this suspension element, - FIG. 7 is a front view of the latter, - figs. 8 and 9 are partial exploded views of each part, - fig. 10 is a perspective representation of the upper part of the shutter curtain, - FIGS. 11 to 16 show a sealing device for the shutter curtain and the lower part of the roof, - FIG. 11 is a vertical section of the shutter curtain, - FIG. 12 is a cross section of the head element thereof, - FIG. 13 is a front view of this head element, - FIG. 14 is a cross section of the sealing device, - FIG. 15 shows an enlarged detail of the main part of this device, - fig. 16 is a cross section of another embodiment of the sealing device with a cushion element, - FIG. 17 shows an enlarged detail of the lower part of the projecting window, - the fis. 18 to 22 show a device for fixing the control motor, - fig. 18 is a side view of the engine, FIG. 19 is a side view of its support seat, - FIG. 20 is a top view of the seat plate, - FIG. 21 is a side view of the fixing plate, - fig. 22 is a front view of this plate, - figs. 23 and 24 are a top view and a side view showing a device for coupling the control shaft to the control motor, - FIGS. 25 to 27 are a front view, a side view and a top view showing a winding drum box, - Figs. 28 to 30 are a top view, a front view and a side view which show an element for adjusting the suspension winding, - FIG. 31 is a detailed section of the access opening, - figs. 32 to 35 show the construction of a guide rail, - fig. 32 is a top view of the upright, - FIG. 33 is a cross section of the guide rail element, - fig. 34 is a front view of the guide rail element, - FIG. 35 is a side view of it, - figs. 36 to 38 show another embodiment of the guide rail element, - FIG. 36 is a top view of the upright, - FIG. 37 is an exploded top view corresponding to FIG. 36, - fig. 38 is a perspective representation showing the assembly of the guide rail, - FIGS. 39 to 41 show the control system according to the second invention, - fig. 39 is a general vertical cross-section of a projecting window, - FIG. 40 is a perspective representation of the control system, and - FIG. 41 is a perspective representation of the control system.

The shutter assembly of the present invention will be described in detail using the accompanying drawings of a preferred embodiment of a three-sided projecting window formed by a front window A and two side windows B and C. In figs. 1 to 5, mark 1 indicates a reserved opening in a building and mark 2 indicates a projecting window installed in this opening 1. The projecting window 2 is formed by three shutter frames 3 forming a front window A and two windows lateral B and C, of a roof assembly 4 mounted on these shutter frames 3 and in which is mounted a control shaft 5 for the operation of a shutter curtain S consisting of a front curtain Sa and two curtains side Sb and Sc, and a lower housing space 6 located under the window, assembled to be installed outside the opening 1 as a finished product.

In the outer part of the lower space 6 is mounted parallel to the windows a cylindrical winding shaft 7 consisting of separate shafts 7a, 7b and 7c for winding the curtain S. Inside the shutter frame 3 are fixed window frames 8.

The control system for the shutter curtain S consists of suspension elements 9, winding drums 10 fixed to the two ends of the control shaft 5 mounted in the roof space 4, and a motor control 11 coupled to the control shaft 5.

By fixing one end of the suspension element 9 to the winding drum 10 and its other end to one end of the head element 51 of the shutter curtain S, and by rotation of the winding drum 10 in one direction or the other produced by the control motor 11, the shutter curtain S moves along guide rails 13 placed vertically on uprights 12 located at the corners of the shutter frame 3 to close and open the window .

The curtain S is pulled by the winding drum 10 from its wound state on the winding shaft 7 in the lower space 6 to be deployed upward for closing the window, and is rewound around the winding shaft 7 for opening the window.

In the present invention with a new control system, having regard to the size of the winding shaft 7, the location of the guide rails 13 and the path of the suspension element 9, the winding shafts 7 are placed so as to cross at their ends and have their ends one above the other.

As shown in part in fig. 5, in the hollow winding shaft 7, inside its drum 71, is provided a helical return spring 72 for the storage of energy during the upward movement of the curtain S and the winding thereof. here at his descent.

The control shaft 5 is mounted in the roof space 4 parallel to the vertical plane and outside of it above the winding shaft 7, and all its parts are, at the corners of the projecting window, connected by universal joints or by conical toothed wheels not shown.

In the present invention, a thin and robust steel belt 9 is used as a suspension element for the roller shutter curtain and unrolls by rotation of the winding drum 10 coupled to the control motor 11. A ribbon may also be used. plastic or a classic fabric strap.

As shown in figs. 6 to 10, the steel belt 9 is fixed at its lower end 91 to one end of the head element 51 of the shutter curtain S and at its other end 92, by engagement holes 93, around the drum winding 10. Here, this drum 10 is divided into two parts, a main part 101 and a secondary part 102, between which the end 92 of the belt 9 is fixed.

The main part 101 has a fixing part 103 for the belt 9 on its divided side provided with a flat part 106 having a screw hole 104 and receiving holes 105 and inclined parts 107 joining the ends of this flat part 106 The secondary clamping part 102 is arranged to fit on the fixing part 103 and is provided with a screw hole 104 and an engagement projection corresponding to the main part 101. The two parts 101 and 102 are joined by a screw 109 for fixing the end 92 of the suspension side of the belt 9. Consequently, the belt 9 is fixed securely along the fixing part 103 of the winding drum 10 by the tightening part 102. , and the engagement of the projections 108 in the receiving holes 105 and the engagement holes 93 of the belt 9 prevents the slipping and loosening of the belt 9 under tension. The head slope of the inclined part 107 in the winding direction is natural and protects the belt 9 from sharp bending and damage. In addition, the belt 9 is wound in layers around the periphery of a groove lob between flanges îOa of the winding drum 10, the diameter of the latter can be small, which reduces the space for its installation in the roof. 4.

 In the second aspect of the present invention, as shown in Figs. 10 to 15, the contact of the lower element of the shutter curtain with the surface of the floor, so that there is no gap in an ordinary shutter, is resolved by the adoption of a sealing device to the head element 51 of the shutter curtain S for contact with the lower surface of the roof assembly 4. This device 50 comprises a group of sealing elements placed longitudinally along the opposite elements and intended to come into tight contact to eliminate a possible diagonal gap between them and also to prevent closing noise.

As shown in figs. 10 and 11, this sealing device consists of a lower element 501 comprising an upper end plate 53 placed on the head element 51 of the shutter curtain S and an upper element 502 placed on the underside of the roof assembly 4 opposite and above the lower element 501. The upper end plate 53 corresponds to the aforementioned lower element of the ordinary shutter and, as shown in FIGS. 12 and 13, is T-shaped with vertical core 531 and inclined wing 532 which comes into contact with the upper sealing element 502 to form a water discharge. The reference 533 indicates an element for engaging the lower end 91 of the belt 9 and the reference 534 an element for fitting the shutter curtain S.

The upper sealing element 502 is formed by a cushion element 504 in flexible tube provided with a base part which is housed in a support element 503.

With the sealing device 50 described above, when the shutter curtain S is raised to close the window, if there remains a diagonal gap under the roof part 4, the cushion element 504 of the sealing element upper 502 is compressed at the point of contact by the lifting force of the curtain S and this gap is eliminated.

In the example shown in fig. 14, the lower sealing element 501 is modified to be supported and to have a free vertical movement along the shutter curtain S and a cushion function. The upper plate 53 is here provided with a hollow vertical core 531 containing a spring 505 constrained to raise the bottom of the upper plate 53, so that the operating range of the sealing device 50 is increased to ensure their action .

In another example, shown in FIG. 15, the upper sealing member 502 is modified. In this embodiment, the function described above of the lower sealing element 501 is transferred to the upper sealing element 502 for absorbing the gap on the roof side. The support element 503 is modified to have the damper function with an actuating element 506 and a return spring 505.

The actuating element 506 is placed between the support element 503 and the cushion element 504 and can move vertically to push the cushion element 504 downwards. By this constitution, the lower sealing element 501 is released from the cushion function and the upper plate 53 can be fixed directly to the shutter curtain S.

It will be noted that when the shutter curtain S is open, corresponding to the fact that the lower element of the ordinary shutter blocks a slot for the shutter to pass over the boot, as shown in FIGS. 16 and 17, it is better to close a passage slot 61 provided on the upper face of the lower housing space 6. In the present invention, the top horizontal plate 532 itself of the upper plate 53 is made to form a water rejection and is provided with a flexible elastic tongue 508 in a lateral groove 507 to produce a watertight contact with the window frame 8.

In addition, to ensure a smooth passage of the shutter curtain S in the slot 61, along the latter are provided two guide parts 62 which deviate from one another downwards and play the role of curtain S guide when it goes up on the inside and when it goes down on the inside. The same device is used at the bottom of the guide rails 13.

However, when the shutter curtain S is closed, the passage slit 61 remains open, the curtain S being through it, and the rainwater flowing along the outer face cannot be stopped, and as the waterproof coating means of the slot 61 can hardly be perfect, the water goes into the space 6 to be discharged freely from the bottom thereof.

In the third aspect of the present invention, as shown in Figs. 18 to 22, the control system contained in the roof space is improved. First, a device for fixing the control motor 11 is presented in the present invention.

On the upper chassis 4a located under the roof 4, there is provided a support seat 14 intended to support the motor 11 coaxially with the winding drum 10. As shown in FIGS. 19 and 20, this seat 14, consisting of a folded metal plate, comprises a horizontal central base 141, a raised upper fixing wing 142, a fixing wall folded down 143 and a lower fixing wing 144.

On the inner side of the motor 11 is fixed a fixing plate 15. As shown in figs. 21 and 22, this plate 15, also made up of a folded metal plate, comprises a main part 151, two wings 152 at the ends thereof, a lower wing 153 and a part 154 folded down from this lower wing 153. The folded part 154 of the fixing plate 15 is fixed in front of the support seat 15 to the fixing wall 143 by screws 16 and its main part 151 is fixed to the control motor 11 by screws 17. The mark 18 indicates a seat plate which is placed on the horizontal base 141 of the support seat 14 of the engine 11 and is used for absorbing the vibrations of the engine 11 without having any fixing function.

Then, according to the elevation system of this component, the second embodiment of the invention is presented.

In the shutter constituted as described above, the shaft 111 of the motor 11 and the control shaft 5 of the shutter curtain S are placed in the manner shown in the top views of FIGS. 5 and 23. In the present invention, the shaft 111 of the motor 11 placed in the roof space 4 is connected to the control shaft 5 of each of the parts of the curtain S by a coupling shaft 20 separated from the two previous.

As shown in fig. 24, this coupling shaft 20 is a hollow cylindrical metal body and consists of a main body 201, a coupling rod 202 and collars 203 placed around the two ends of the main body 201. The rod d coupling 202 is inserted half into the main body 201 by a tongue joint 204 provided at the end of the main body 201 adjacent to the motor 11, its other end projecting half towards the shaft 111 of the motor 11, and is fixed by a screw 205 from the outside of the collar 203.
At the other end, close to the control shaft 5, the latter is inserted and is fixed in the same manner as above by a collar 203 and a screw 206.

On the outer end of the shaft 111, corresponding to the end of the main body 201, is fixed a socket 207 intended to receive the projecting half of the coupling rod 202 and to fix it by means of a joint to tongue 204 and a screw 208.

Consequently, by the introduction of half of the coupling rod 202 into the socket 207 placed at the end of the motor shaft 111 and by the introduction of the rest of this rod 202 into the main body 201 of the coupling shaft 20, and with one end of the control shaft 5 inserted into the other end of the coupling shaft 20 and by the fixing of each of the screws 208, 205 and 206, the rotation of the shaft 111 of the motor 11 is transmitted to the control shaft 5.

When it is necessary to decouple the control shaft 5 from the motor shaft 111, it is possible, by unscrewing for example the screw 206 assigned to the control shaft 5 and the screw 208 assigned to the motor shaft 111, move the coupling shaft 20 towards the control shaft 5 to disengage the protruding end of the coupling rod 202 fixed on the coupling shaft 20 can be removed from the bush 207 of the shaft 111 of the engine .

As shown in figs. 25 to 27, a box 21 mounted on the roof assembly covers the winding drum 10. This box 21, made of folded sheet steel, serves as a support for the control shaft 5 and consists of two wings 211 fixed on the inside of a front plate 41 of the roof 4 and supporting the entire box, two side plates 212 folded down from the wings 211 and an upper plate 213 joining these side plates 212. The box drum 21 supports the control shaft 5 of the shutter curtain S, which passes through the side plate 212 by a bearing 214 provided on the latter. The motor 11 rotates the control shaft 5 to wind the belt 9 on the drums 10 fixed on its ends and to unwind it. The box 21 covers the winding drum 10 without excessive bulk.

As shown in figs. 28 to 30, upper and lower fixing holes 215 are provided in the side plates 212 of the drum box 21 near the periphery of the winding drum 10. A cotter pin 216 for the belt 9 is mounted between the holes 215 opposites. This pin 216 is of ordinary type and its branches 217 are introduced through a hole 215 to pass them through the opposite hole 215, then its head 218 is applied against the outside face of the side plate 212 and the end is folded down of its branches 217 to fix it. Consequently, the belt 9 wound in layers on the drum 10, with a large diameter at the end of the winding operation, can be regularized and prevented from leaving the groove 10b of the drum 10.

The reference 219 indicates a part for fixing a front cover of the box.

With this construction, the control motor 11, the control shaft 5 or other elements of the control system, as shown in FIG. 31, are all easily accessible through a hole 22 provided on the inner side of the projecting window 2 and can be removed by unscrewing some of the screws and moving, and the maintenance of a long element such as the shaft of control 5 is done with ease, and the control motor 11 can be removed from the support plate 14 with the fixing plate 15.

As the lower accommodation space 6 is used as ordinary furniture or as an incorporated sofa (indicated by
D in fig. 2) from inside the room, as shown in fig. 17, an access hole 23 with panel 63 is provided on the outside of this lower space 6 for the maintenance of the winding shaft 7. The upper edge 64 of the panel 63 is housed in a groove 66 formed between the water discharge 81 of the window frame 8 and an upper frame element 65 of the space 6 with interposed sealing element, while the lower edge 67 of the panel 63 is fixed to a lower frame element 68 of the space 6 by screws 69.

The guide rails 13 adopted as the fourth aspect of the present invention are removably mounted on the uprights 12. As shown in figs. 32 to 35, the guide rail 13 is formed in the usual appearance of a groove by a part of the upright 12 and by an element 130. The upright 12 forms a half-side of the guide rail 13 at a square recess 121 formed on its outer corner with a side wall 122 and an L-shaped end wall 123 and the rail element 130 is a long L-shaped element corresponding to the recess 121 and consists of a side wall long front 131 and a short end wall 132.

On the end wall 132 of the rail element 130 is provided a series of receiving parts 133 arranged in line, and on the opposite part of the end wall 123 of the upright 12 is provided a series of elements # element of engagement 124 intended to engage in the receiving parts 133 for the formation of the guide rail 13. Each receiving part 133 consists of a horizontal notch 134 which opens onto the edge of the end wall 132 and a vertical notch 135 extending from the inner end of the notch 134 and extending upward, while the engagement element 124 consists of a head and a rod, like an ordinary bolt .

By placing the guide rail element 130 in front of the hollowed-out part 121 of the upright 12 and engaging the horizontal notch 134 on the rod of the engagement element 124 then sliding the rail element 130 downwards, the two end walls 123 and 132 are united by the head of the engagement bolt 124. A joining element 136 provided at an outside corner of the rail element 130 engages in a vertical groove 125 provided at a corner outside of the upright 12 to align the upright 12 and the rail element 130. The mark 137 indicates a strip of mohair and its support for a smooth sliding and air tightness between the rail element 130 and the curtain of shutter S.

 Figs. 36 to 38 show another embodiment of the invention. The main differences compared to the previous example are that the receiving part 133 does not have the vertical notch 135 and that the engagement element 124 is replaced by an assembly means 224 intended to come into engagement with the both with the upright 12 and with the rail element 130.

In this example, the receiving parts 133 are formed by simple horizontal notches 134 which open on the edge of the end wall 132, and at the interior corner of the rail element 130, the end wall 132 is folded in a step to form a vertical groove 139.

On the other end wall 123 of the upright 12 is formed a zone with a thicker part 128 intended to produce a vertical groove 126 and a step 127 each at its inner corner and on its edge, and the step 127 comes into contact with the outer step of the vertical groove 139 of the rail element 130.

In the invention, for joining the overlapping end wall 123 of the upright 12 and the end wall 132 of the rail element 130, an assembly device 224 is adopted. This device 224 is provided in number equal to the number of the receiving parts 133 and consists of a main body 225, vertical wings 226 made at the two edges of this main body 225, and an engagement screw 227. In the assembled state, the main body 225 extends in width from the vertical groove 126 of the end wall 123 of the upright 12 to the vertical groove 139 of the rail element 130 and its wings 226 are engaged in these grooves, and the screw 227 passes through a hole 228 drilled in the center of the main body 225, crosses the horizontal notch 134 and is screwed into the thicker part 128.The rod of the bis 227 must be of a diameter such that it can slide into the notch 134 , and its head must be larger than hole 228.

Therefore, as shown in Figs. 37 and 38, the screw 227 passing through the main body 225 of the device 224 being screwed without being tightened in the end wall 123 of the upright 12, it is possible, by introducing from the outside the end wall 132 of the element of rail 130 between the end wall 123 and the main body 225, the horizontal notch 134 of the receiving part 133 sliding on the rod of the screw, applying the end wall 132 to the end wall 123 to form the entire guide rail 13. Then, from the orifice of the rail 13, the engagement screw 227 is tightened, and the wings 226 of the main body 225 engage in the vertical grooves 126 and 139 respectively of the upright 12 and of the rail element 130, while the main body 225 acts as a washer for the screw 227 for the solid fixing of the rail element on the upright for the completion of the guide rail 13.

With the horizontal notch 134 of the receiving part 133 made in the end wall 132, the mounting direction of the rail element 130 of the invention is always from the outside of the upright 12, and by tightening the screw 227, the rail element 130 is joined to the upright 12.

In the guide rail 13 formed as described above, as shown in FIG. 10, the lateral end of the shutter curtain S and the suspension belt 9 for operating the curtain S move side by side.

In adopting the shutter for a projecting window of the present invention, as a second embodiment according to the second invention, the shutter control system can be modified to have another embodiment.

The second system is designed mainly so that the raising and lowering of the shutter curtain S are both positively controlled by the motor and to be placed in the lower accommodation space 6 instead of being in the roof space 4, this, to lighten the roof assembly. In figs. 39 and 40, the projecting window 2 is shown in vertical section and the elements corresponding to those of the previous embodiment are designated by the same reference numerals.

In the present embodiment, next to the winding shaft 7 of the shutter curtain S mounted in the lower space 6, above it and parallel to it, are placed a control shaft 5 and a motor. control 110 coupled to this shaft 5. At each end of the control shaft 5 is fixed a control gear 54, which meshes with a controlled gear 55 fixed to the corresponding end of the winding shaft 7 , and the motor 110 rotates these two wheels in opposite directions.

The lower end of the shutter curtain S is fixed to the winding shaft 7, and one end 91 of a suspension element 9 is fixed to the end of an upper plate 53 located at the head end curtain S.

The suspension element 9 passes at the top on a deflection wheel 57 mounted with freedom of rotation on the suspension shaft 56, and its other end 92 is fixed to the control shaft 5. Here, the deflection wheel 57 has numerous teeth 58 around its periphery, while the belt 9 constituting the suspension element has a series of spaced holes 94 in which the teeth 58 engage for the production of a transmission chain between the motor 110 and the shutter curtain S. Thus, the control motor 110 rotates the winding shaft 7 and the movement of the shutter curtain S, taken from the wound state on the winding shaft 7 for closing the opening 2 or brought back to the wound state on said shaft 7 for the opening of the opening 2, is done with precision and uniment. Consequently, not only the need for a helical return spring 71 in the winding shaft 7 is eliminated, but also, like the elements placed in the part su only the return wheels 57 and the shaft 56 which carry them, the roof assembly 4 can be small and much lighter.

In the embodiment shown in FIG. 41, the device described above is further improved.

The control motor 110 is directly coupled to the winding shaft 7, and one end 92 of the belt 9 is fixed directly to the winding drum 10 placed at the end of the shaft 7 and its other end 91 passes on a deflection wheel 59 provided on the support shaft 56 in place of the deflection wheel 57, to be fixed to the head element 51 on the other side of the shaft 56 for the suspension of the shutter curtain S.

Thus, in this control system, the winding direction of the control motor 110 for the belt 9 corresponds to the direction of release of the shutter curtain S for closing the opening 2, and for opening the opening 2, running in the opposite direction of the motor 110 is sufficient. With this system, the belt 9 is not engaged with the deflection wheel 59 to absorb the difference in diameter due to the thickness between the winding drum 10 and the winding shaft 7.

 In the shutter of two embodiments according to the invention described above, the basic control system is entirely new for positive control of both the opening and the closing, so that it can be used without only for the limited examples of shutters described for a projecting window, but also for conventional shutters, for example for entry or ordinary flat window, with the control motor 11, the control shaft 5 and the winding shaft 7 all contained in a box fixed to the upper structure.

The present invention presents a new shutter assembly for a projecting window comprising a curtain intended to be wound around a winding shaft contained in a lower housing space formed in the projecting window, a control system contained in a space for roof, this system consisting of two winding drums each mounted at one end of a control shaft mounted in the roof space and coupled to a control motor capable of operating in the winding direction and the unwinding direction and two suspension elements each fixed at one end to a winding drum and at the other end to one end of the head element of the shutter curtain, and two guide rails provided on uprights separating faces of the window projecting at its corners for guiding the ends of the shutter curtain, for closing the shutter curtain by operating up the control motor and or screw by contention in opposite direction of the motor with winding down of the winding shaft recalled by the helical spring provided therein.

And for the shutter assembly according to the invention, the basic idea being entirely new, various elements of special type are adopted for the production of a shutter assembly of the elevation type. In the embodiments of the invention, a sealing device is provided for the upper end of the shutter curtain vis-à-vis the lintel, means for mounting the control motor, coupling means for the control shaft, and relationships between the winding drum provided on the control shaft and the suspension element for operating the curtain as well as their construction are indicated. Therefore, detailed explanations for the new constitution and their means of maintenance are presented.

 By presenting other embodiments of the second invention, a more advanced type of shutter assembly for a projecting window is presented with a curtain controlled by a motor for positive opening and closing of any opening. Not only does this provide a simpler drive shaft and a winding shaft without a coil spring fitted therein, but the entire weight of the control system is concentrated in the lower part of the window so that the roof assembly is more light and small.

In addition, the invention is applicable not only to a projecting window, but to various types of conventional shutters.

Claims (27)

Claims 1. Set of shutters for projecting windows or the like, comprising a curtain (S) intended to be wound around a winding shaft (7) contained in a lower housing space formed in the projecting window (2), a control system consisting of two winding drums (lo) each mounted at one end of a control shaft (5) and coupled to a control motor (ii) capable of operating in the winding direction and the direction of unwinding, and two suspension elements (9) each fixed at one end to a winding drum (io) and, at their other end, to the ends of the head element of the shutter curtain, and two rails guide (13) fixed on uprights separating faces of the projecting window at its corners for guiding the ends of the shutter curtain, characterized in that the control system is placed in the space of the projecting window to close the shutter curtain (S) by fon actuation up of the control motor (ii) and open this curtain by operating in the opposite direction of the motor (li) and winding down the winding shaft (7) recalled by the helical spring provided therein. 2. A shutter assembly according to claim, in which the control system is placed in the roof space of the projecting window. 3. A shutter assembly for a projecting window or similar structure according to claim 2, in which the control motor (11) is connected to the control shaft (5) by a universal joint placed at the corner of the projecting window. 4. A shutter assembly for a projecting window or similar work according to claim 2, in which the axis of the winding shaft of the shutter curtain for each of the faces of the projecting window is placed so that its end intersects. one end of the other winding shaft at a corner of the projecting window, being one above the other. 5. A shutter assembly for a projecting window or similar structure according to claim 2, in which the axis of the control shaft carrying the winding drums is placed parallel to the vertical plane containing the winding shaft and on the outside side of this plane, for winding the shutter curtain emitted outside the winding shaft on the inside side of the winding drum. 6. A shutter assembly for a projecting window or similar structure according to claim 2, in which the suspension element connecting the shutter curtain to the winding drum is a flat steel belt. 7. A shutter assembly for a projecting window or similar work according to claim 6, in which the upper end of the belt is fixed to a cylindrical winding drum divided into two parts firmly holding the end of the belt between them, the main part providing a fixing zone formed by a flat central part with means for retaining the belt and inclined lateral parts conforming to the belt, and the secondary part providing a complementary part to the previous one fixed to the latter by a screw. 8. A shutter assembly for a projecting window or similar work according to claim 2, in which the head element of the shutter curtain comes into contact with the lower element of the roof by a sealing device provided with cushions on at least one of the closing parts. 9. A shutter assembly for a projecting window or similar structure as claimed in claim 2, in which a slot for the passage of the shutter curtain is provided on the upper surface of the lower housing space, and two guide parts moving apart. one of the other downwards are provided along this slot for guiding the shutter curtain. 10. A shutter assembly for a projecting window or similar work according to claim 9, in which the head element of the shutter curtain has a horizontal upper plate intended to cover the slot when the curtain is open and to form a rejection of water, and this plate has, in a lateral groove, a flexible elastic tongue intended to come into sealing contact with the window frame. 11. A shutter assembly for a projecting window or similar structure according to claim 9, in which, when the shutter is closed, rainwater flowing along the outside face thereof goes through the slot in space. lower housing to be evacuated freely from the bottom thereof. 12. A shutter assembly for a projecting window or similar structure according to claim 2, in which the motor of the control system contained in the roof space is fixed on a support seat provided on an upper frame of the projecting window and is removably mounted in the roof by means of a fixing plate fixed on its inner side and by fixing the lower wing of this plate only to the support seat by screws. 13. A shutter assembly for a projecting window or similar structure according to claim 2, in which a coupling device is provided between the shaft of the control motor and the control shaft of the winding drum of the shutter curtain. a coupling shaft with a joint bar which can slide therein and be separated from the motor shaft. 14. A shutter assembly for a projecting window or the like according to claim 2, in which the winding drum is enclosed in a boot which serves as a support element for the control shaft, and each of the boots comprises pins. for adjusting the winding of the belt wound on the drum. 15. A shutter assembly for a projecting window or similar structure according to claim 2, in which access openings to the door or cover are provided on the inner side wall of the roof assembly for maintenance of the control system. 16. A shutter assembly for a projecting window or similar structure according to claim 2, in which an access opening is formed outside the lower space and a panel is removably engaged with the housing space for maintenance of the winding shaft. 17. A shutter assembly for a projecting window or similar structure according to claim 2, in which the guide rail consists of two symmetrical elements of L-section with a long side wall and a short end wall in mutual engagement, with their end walls joined in a separable manner to form a normal groove for vertical guidance of the shutter curtain. 18. A shutter assembly for a projecting window or similar work according to claim 17, in which an element is formed in the outer front corner as part of an upright in the form of a longitudinal recess and the other element is an element of separate guide rail formed as a complementary element to the rail intended to be engaged with the previous one. 19. A shutter assembly for a projecting window or the like according to claim 18, in which a series of recesses in a row of receiving parts are provided on the end plate of the guide rail element, and on the corresponding parts of the end plates of the upright is provided a row of engagement elements intended to be engaged with the receiving parts for the assembly of the two elements in a guide rail.  20. A shutter assembly for a projecting window or similar work according to claim 19, in which the receiving parts are formed by an L-shaped notch, namely a horizontal notch opening onto the edge of the end wall and d '' a vertical notch starting from the inner end of the horizontal notch and extending upwards. 21. A shutter assembly for a projecting window or similar structure according to claim 18, in which the end walls of the two elements are assembled by an assembly element consisting of an engagement plate and a bolt. 22. A shutter assembly for a projecting window or the like according to claim 21, in which a series of recesses, in a row of horizontal notches, to allow the bolt to slide are provided on the end plate of the element. guide rail, and a row of screw holes for receiving the bolt are provided on the corresponding parts of the end plate of the upright. 23. A shutter assembly for a projecting window or similar work according to claim 1 in which the control system is also placed in the lower housing space of the projecting window to close and open the shutter curtain positively by operating upwards. and down the control motor. 24. A shutter assembly for a projecting window or the like according to claim 23, in which only one belt return roller is placed in the roof space. 25. A shutter assembly for a projecting window or similar work according to claim 23, in which at each end of the control shaft is fixed a control gear which meshes with a controlled gear fixed at the end of the winding shaft, and the single motor rotates these toothed wheels in opposite directions for the controlled opening and closing of the shutter curtain.  26. A shutter assembly for a projecting window or similar work according to claim 24, in which the belt return roller is a toothed wheel mounted with freedom of rotation on a suspension shaft, and its teeth engage in a series of holes in the belt in the form of a chain for transmitting the action of the motor to the shutter curtain. 27. A shutter assembly for a projecting window or similar structure according to claim 23, in which the control motor is directly coupled to the winding shaft and one end of the belt is fixed directly to the winding drum provided at the end of this shaft and its other end passes over a deflection roller to be fixed to the head element on the other side of the shaft for the suspension of the shutter curtain.