FR2858009A1 - LOCKING DEVICE FOR ROLLER SHUTTER OR SIMILAR AND ROLLER OR SIMILAR SHUTTER EQUIPPED WITH SAID LOCKING DEVICE - Google Patents

Abstract

The device (1) has two components (2, 2) with each component comprising a holding unit (3) to hold a rolling axle (4) of a roller blind in rotation. Each component has a holding unit (12) to hold an attachment (9) of the roller-blind in rotation and a cooperation unit (15) that attaches the two components. Each cooperation unit comprises of a strip (16) disposed at the level of the components. An independent claim is also included for a rolling-blind.

Description

LOCKING DEVICE FOR SHUTTER OR SIMILAR SHUTTER AND SHUTTER

  RUNNING OR SIMILAR EQUIPPED WITH THIS LOCKING DEVICE

  The present invention relates to a locking device for shutters or the like.

  Roller shutters or similar are composed of many parts to be assembled together during installation on site.

  In particular, in the shutters, it is necessary to attach and lock the fastener of the shutter itself to its winding axis, which axis is rotated so as to allow the winding or unwinding of the shutter .

  To allow the connection between the winding axis and said fastener, various devices have been proposed.

  A first known device is to make holes in the fastener and in the drum axis and to place a blocking element through these holes so as to maintain the attachment and the winding axis integral.

  This device has various disadvantages among which the obligation to make penetrations in the different parts, which makes them fragile, - the difficulty of positioning the different parts together before placing the blocking element, and - the difficulties of disassembly of the together considering that the entire weight of the roller shutter is on the blocking element.

  In an attempt to overcome these drawbacks, it has been proposed devices comprising two elements to slide along the winding axis on either side of the fastener.

  Each element comprises first screwing means for cooperating with the fastener and second screwing means for fastening to the winding axis, in rotation and in translation. In this type of device, the attachment is no longer directly subject to the winding axis but through each element.

  This technical solution facilitates the assembly and disassembly of the fastener and the winding axis between them. Nevertheless, it still does not prevent the drilling operations to be carried out on site during the installation of the shutter.

  The present invention aims to overcome the aforementioned drawbacks by providing a locking device that does not require machining operation during installation.

  Another object of the present invention is to provide a locking device that can adapt to any type of winding shaft available on the market.

  Another object of the present invention is to provide a locking device for rapid unlocking of the various elements namely attachment, winding axis and locking device between them.

  The invention thus relates to a locking device for shutters or the like comprising two half-elements.

  According to the invention, each half-element comprises: first attachment means for rotating the winding axis of said rolling shutter, second fastening means for rotating the fastener of said shutter, and - Cooperation means for attaching the two half-elements together.

  Other features and advantages of the invention will appear more clearly on reading the following description of a preferred embodiment, and in which the description is given by way of non-limiting example and in 1 represents an exploded perspective view of the assembly formed by the winding axis, the fastener and the locking device according to the invention; FIG. 2 illustrates in a perspective view, the assembly formed by the winding axis, the tie and the locking device according to the invention in the locked position, - Figure 3 shows a top view of the example shown. FIG. 4 illustrates a side view of the exemplary embodiment of FIG. 2; FIG. 5 is an exploded perspective view of the assembly formed by a winding axis, a fastener and a locking device 10 made of salt a second embodiment according to the invention.

  The present invention relates to a locking device for shutters or the like.

  Referring mainly to Figure 1, we see that said locking device 1 comprises two half-elements 2,2 '.

  According to the invention, each half-element 2,2 'comprises first attachment means 3 for securing in rotation the winding axis 4 of the roller shutter.

  Referring now to Figure 4 illustrating an embodiment of the locking device 1, we see that each half element 2,2 'consists of a ring.

  In this advantageous embodiment, said first attachment means 3 are made by the inner profile 5 of the ring which corresponds to the outer profile 6 of said winding axis 4.

  Indeed, it can be seen that the inner profile 5 of the ring has projections 7 corresponding to recesses 8 formed at the outer profile 6 of the winding axis 4.

  This subjection makes it possible, when the shaft 4 is turned into rotation by a motor means, not represented by the appended drawings, to also rotate each half-element 2,2 'and, consequently, to attach it. 9 of the shutter when the latter is subject to the half-element 2,2 '.

  Of course, the projections 7 and recesses 8 may be of various shapes and may be located, indifferently, on the inner profile 5 or on the outer profile 6 of the winding axis 4.

  Referring now to FIG. 5, it can be seen that each half-element 2,2 'is constituted, according to a second embodiment, of a slider.

  According to this variant, said first attachment means 3 are formed by the lower profile 10 of said slider.

  For this purpose the latter slides in a groove 11 formed on the outer surface of the winding shaft 4.

  According to the invention, each half-element 2,2 'comprises second attachment means 12 for rotating the fastener 9 of said roller shutter.

  Referring mainly to FIGS. 1 and 5, it can be seen that the second attachment means 12 comprise a male part 13 for sliding engagement with a female part 14 provided at said fastener 9.

  Of course, said second attachment means 12 may instead of or in addition to said male part 13 comprise a female part which, in this case, will slidely engage with a male part of said fastener 9. Thus, when the rotational drive of each half-element 2,2 'by a motor element via the winding axis 4, the attachment 9 will also be rotated and, thereby, the flap will be wound or unfold around axis 4.

  Said locking device 1 also comprises cooperation means 15 for attaching the two half-elements 2,2 'to each other.

  Said cooperation means 15 comprise a tongue 16 disposed at a half-element 2,2 '.

  Said tongue 16 comprises a female part or a male part 17 cooperating, preferably, with a male part provided at the level of the other half-element or possibly a female part 18 so as to hold the two half-elements 2,2 'between them. In a preferred embodiment, the size of the male portion 17 will be greater than that of the female portion 18 so as to allow a locking in translation of the two half-elements 2, 2 'between them while allowing a game in order to prevent the fastener 9 passes over the half-elements 2, 2 'during its winding around the axis 4.

  According to the embodiment of FIGS. 1 to 4, each half-element 2,2 'comprises a tongue 16.

  This being so, it is quite possible, like the embodiment described in FIG. 5, to use a half-element 2 comprising a tongue 16 and a second half-element 2 'that does not have one.

  Advantageously, it is expected that the distal end 19 of the tongue 16 of a first half-element 2 overflows from the second half-element 2 'when the two half-elements 2,2' are attached, allowing the disengagement of the elements. male and female parts by pressing on said distal end 19.

  This characteristic is advantageous since it makes it possible to easily release the two half-elements 2,2 'and then, by separating the two half-elements by sliding them along the winding axis 4, makes it possible to release said fastener 9 of said winding shaft 4.

  Said locking device 1 also comprises locking means in translation between a half-element 2 and the winding axis 4.

  In fact, during the winding and unwinding operations of the shutter, stresses may cause a displacement in translation of the assembly formed by the locking device 1 and the fastener 9 along the winding axis 4. To avoid this problem, it is preferable to block said assembly with respect to the winding axis 4.

  For this purpose, said locking means 20 consist of an excess thickness 21 arranged to be crushed during the attachment of the two half-elements 2,2 'to the winding axis 4.

  In FIGS. 1 and 3, it can be seen that said excess thickness 21 is disposed at the surface of the tongue 16 in contact with the winding axis 4.

  This arrangement of the locking means 20 is advantageous since it does not prevent the sliding of the half-elements 2,2 'on the axis 4 when they are not attached to each other and only constitute a blockage when from the moment when said tongue 16 of a half-element 2 is inserted at the second half-element 2 '.

  The present invention also relates to a shutter or the like equipped with a locking device according to any one of the aforementioned characteristics.

  Of course, other embodiments within the reach of ordinary skill in the art could have been envisaged without departing from the scope of the invention defined by the claims below.

Claims (11)

  1. Locking device (1) for shutters or the like comprising two half-elements (2,2 ') CHARACTERIZED in that each half-element (2,2') comprises: - first hooking means (3) for rotating a winding shaft (4) of said rolling shutter, - second hooking means (12) for rotationally securing the fastener (9) of said rolling shutter, and - cooperating means (15) for attach the two half-elements (2, 2 ') to each other.   2. Locking device according to claim 1 wherein said means of cooperation (15) comprises a tongue (16) disposed at a half-element (2) and having a female or male part (17) co-operating with respectively a male part or a female part (18) so as to maintain the two half-elements (2,2 ') between them.   3. Locking device according to claim 2 wherein the distal end (19) of a first half-element protrudes from the second half-element when the two half-elements (2,2 ') are attached allowing the disengagement of the male parts. and female by pressing on said distal end (19).   4. Locking device according to any one of claims 2 and 3 above wherein each half-element (2,2 ') comprises a tongue (16).   5. Locking device according to any one of claims 1 to 4 wherein each half-element (2,2 ') consists of a ring, said first attachment means (3) being formed by the inner profile (5) of the ring corresponding to the outer profile (6) of said winding axis (4) for securing in rotation said axis (4).   6. Locking device according to any one of claims 1 to 3 wherein each half-element (2,2 'consists of a slide, said first hooking means (3) being formed by the lower profile ( 10) of the slider sliding in a groove (11) formed on the outer surface of said winding axis (4).   7. Locking device according to any one of the preceding claims wherein the second attachment means (12) comprise a male part (13) or female for sliding engagement with a respective female (14) or male portion said fastener (9).   8. Locking device according to any one of the preceding claims comprising locking means (20) in translation between a half-element and the winding axis (4).   9. Locking device according to any one of the preceding claims wherein said locking means (20) consist of an excess thickness (21) arranged to be crushed during the attachment of the two half-elements (2, 2 ') on the winding axis (4).   10. Locking device according to claim 9, wherein said overlay (21) is disposed at the surface of a tongue (16) in contact with the winding axis (4).   11. Roller shutter or the like equipped with a locking device according to one   any of the preceding claims 1 to 10.