EP0757146B1 - Locking device with at least one lock bolt, for a sliding frame - Google Patents

Description

The invention relates to a device for locking at least one point of lock for sliding frame.

The locking devices according to the invention are particularly suitable for sealing windows, doors, sliding patio doors or the like constructed by assembling profiles, in particular aluminum profiles.

Document FR 2,689,926 describes a device for locking at least one locking point, especially for windows, doors, sliding patio doors or the like comprising at least one profile. This device has a lock external to the profile provided with a locking member and an actuating means outside the profile, a second actuation means inside the profile and minus a condemnation body. Said first actuation means passes through a first wall of the profile to cooperate with a corresponding shape of said second means of actuation. Said second actuation means is connected kinematically to the locking member through a second wall of the profile to produce a movement in translation or in rotation of the organ (s) of conviction. The lock and the profile are crossed by a locking member unique such as a barrel ordered by a key capable of being engaged at least on one side of the window or sliding door or patio door; and the kinematic link between a said second actuation means inside the profile and a said member for locking is established by means of actuating blades capable of sliding externally on the edge wall of the profile.

This known type of device is generally satisfactory, but has the disadvantage of a leak when closing the window, door or sliding French window. This leak is due to the fact that the brush seals sealing do not cover the side face of the fixed amount of the window, door or sliding patio door due to the offset produced by the thickness of the headrest and the actuating blade of this known device.

The object of the invention is to remedy this drawback by eliminating the offset due to the thickness of the headrest and the device actuating blade known and perfecting this known device so that the brush seals can provide a comparable or better seal than that provided by other devices of the prior art.

The document GB 2.211.882 describes a locking device with at least one locking point, especially for windows, doors, sliding patio doors or the like comprising at least one profile, of the type comprising a lock outside the profile. The lock has an actuating member penetrating to the interior of the profile to control the translation of a mobile assembly. The crew mobile comprises a member cooperating with said integral actuating member an actuating or guiding blade in translation. The actuating blade or guide in translation supports at least one locking member. The crew mobile is contained inside the profile, and is kept close to the inside the edge of a profile by guide means. The locking members are separable from the moving part, so as to mount the moving part inside of the profile by threading it through one end of the profile and mounting the locking through lights crossing the edge of the profile.

The guide means of the document GB 2.211.882 consist of ribs guiding the moving element threaded inside the profile to a position predetermined for mounting the locking members and preventing recoil too much of the assembly during closing operations.

However, due to the sliding clearance required for guidance, the risk of leakage is not eliminated in the document system GB 2,211,882.

The object of the invention is to remedy this drawback by improving this device known in such a way that possible sealing brush seals can provide a comparable or better seal than that provided by others prior art devices.

To this end, the invention provides to make any retreat impossible by forcing constantly the locking members to keep a chosen position relative to the profile edge.

According to the invention, the means for guiding document GB 2,211,882 are replaced by holding means which include fixing plates disposed between depth adjustment blocks of the locking members and the inner face of the edge of the profile, these fixing plates being arranged to allow the sliding of the blocks and the locking members.

According to other characteristics of the invention:

At least one holding means carries a member capable of preventing the closing of the window, sliding door or French window, so as to avoid any impact of the locking members on the corresponding strikes.

The locking members are fixed by means of at least one fixing means forming a angle with the direction of depth adjustment of locking devices.

Said fixing means simultaneously ensures the holding in place and blocking the depth adjustment of the locking member.

Said cooperating member has a conformation in fork.

The locking member (s) present (s) a hook conformation.

The moving part is held in position by a means of indexing.

The invention will be better understood thanks to the description which will follow given by way of example not limiting with reference to the accompanying drawings in which:

Figure 1 schematically shows a view in perspective with partial tearing of a device according to the invention in the open position.

Figure 2 shows schematically a section transverse along line II-II of Figure 1 of a device according to the invention.

FIG. 3 schematically represents a view in cross section along line III-III of Figure 1 of a device according to the invention.

FIG. 4 schematically represents a view in longitudinal section along IV-IV of FIG. 1 of a device according to the invention.

FIG. 5 schematically represents a view in enlarged longitudinal section of a device according to the invention.

Referring to Figures 1 to 3, a device according to the invention comprises a lock 1 external to a profile 2 and provided with an actuating means 3 passing through a wall side of profile 2 through an opening provided for allow the translation of the operating member 3 in the direction of arrow 4. In its translational movement longitudinal, the operating member 3 controlled by a key engaged in the lock causes displacement of a fork 5 secured to an actuating blade 6. The blade actuator 6 carries at its opposite ends two housings 7a, 7b carrying removable hooks 8a, 8b capable to engage in strikes or openings G of the fixed amount 9 of the sliding door, window or French window. Of them fixing plates 10a, 10b are trapped in sliding between the actuating blade 6 and the blocks 7a, 7b. A plate, for example the lower plate 10b, carries a retractable nipple 11 preventing false operations to avoid deterioration of the bolts during sliding closure in the direction of the arrow 12.

Thanks to the invention, the actuating blade 6 is entirely contained inside the profile 2; the blade actuation 6 no longer constitutes an obstacle to the sliding door, window or patio door closure and allows the application of brushes 13a, 13b carried by the profile 2 on the sealing faces 9a, 9b of the fixed upright 9 of the sliding door, window or French window. The invention, by allowing the application of brush seals 13a, 13b on the lateral sealing faces 9a, 9b, thus provides an equivalent closure seal or better than that of the other devices of the prior art.

Furthermore, because the actuating blade 6 is inside profile 2, the aesthetic appearance of the door, sliding window or patio door is greatly improved because the edge of profile 2 does not has no discontinuity in appearance with the faces side of profile 2. This arrangement is particularly advantageous for aluminum profiles lacquered or anodized.

The plate 10b carries a movable element 14 subjected to the action of a spring 15 and into which is screwed from the outside the stud 11. The stud 11 is thus fixed in position relative to the edge of profile 2 and is maintained fixed in position relative to profile 2 being prisoner in circular opening 16 in which he is engaged.

Because the control fork 5 and the blade actuator 6 as well as the pads 10a, 10b comprising at least one movable element 14 subjected to the action of a spring 15 are all internal to the profile 2, the setting in place of this set is simply done by sliding at the end of the profile, after which we screw the stud 11 in element 14 through hole 16 made in the edge of the profile.

With reference to FIGS. 4 and 5, the elements of references identical to the references of FIGS. 1 to 3 denote elements which are identical or functionally equivalent to those in Figures 1 to 3.

The fixing plates 10a, 10b are sliding prisoners between blocks 7a, 7b bearing the hooks 8a, 8b and the actuating blade 6. Thus, during attempted break-in, the effort resulting from the break-in is applied to the hooks 8a, 8b which are retained in the support blocks 7a, 7b, which are braced on the actuating blade 6 and on the inside the edge of the profile 2. This arrangement makes it possible to use thus the thickness of the profile to resist efforts exercised during a forced entry attempt. Therefore, the blade 6 can be a thin blade and the fixing plates 10a, 10b can be reduced to segments of minimum length, since they only participate not resistance to burglary. On the contrary, in prior art, the fixing headrest was fixed to outside on the edge of the profile and had to present a sufficient length and thickness to withstand alone to break-in efforts. In addition, to better distribute these efforts it was necessary to fix the headrest in one plurality of points along the profile. On the contrary, thanks in the invention, each fixing plate 10a, 10b only requires fixing at two points using for example of screws 17a, 17b cooperating with inserts 18a, 18b. Preferably, an insert such as 18b also allows the fixing of a bracket 19 for retaining the spring 15. Thus, the parts integral with the edge of the profile 2 are the fixing plates 10, the inserts 18 and the screws 17, the protection device against false operations comprising the bracket 19, the spring 15, the movable element 14 and the retractable nipple 11. The moving parts with respect to the edge of the profile 2 are the fork 5 driven by the member 3 forming part of the external lock, the blade actuator 6 which transmits the movement to blocks 7 bearing the hooks 8 and the members contained therein blocks 7. Appropriate lights are provided in the plates 10 to allow the sliding of the blocks 7 and hooks 8; these lights are crossed by rivets 20 which secure the blocks 7 hook holders to the actuating blade 6.

Advantageously, provision is made to mount a leaf spring indexing device 21 cooperating with an appropriate orifice a plate 10 to keep the moving equipment comprising the actuating blade 6 and the members it door in a fixed position.

In the position of figure 5, the end curved leaf spring 21 is engaged in the hole 22 made in the plate 10; while when we moves the moving part in the direction of arrow 4, the leaf spring 21 is driven upwards and comes lean on the bottom of the light 23 practiced in the plate 10b.

The document FR 2.701.056 describes the operation of the hook adjustment depth screw 24 lock 8b. In relation to this document, this invention includes the refinement that the hook 8b can be quickly removed to mount the aforementioned moving element by one end of the profile 2 in loosening a needle screw 25 whose axis forms an angle with the hook adjusting direction.

Thus, by loosening the needle screw 25, we thread the moving part by one end of the profile, the plates 10 by screwing the screws 17 into the inserts 18, which has the effect of fixing the moving assembly; we screw then in place the retractable nipple 11 and we position the hooks 8a, 8b before tightening the needle screw (s) 25 for holding the hooks 8a, 8b.

The needle screw 25 thus fills a double function: on the one hand it keeps the hook in position and, on the other hand, it applies the hook to the screw setting 24 by preventing any loosening after the hook depth adjustment is performed.

The invention described with reference to a mode of particular achievement is by no means limited to it, but on the contrary covers any modification of form and any variant of the invention in which the moving part is contained inside the profile sliding from a window, door or patio door sliding frame whose frame is made from a hollow profile.

Claims (7)

1. Latching device with at least one locking point, in particular for windows, doors, sliding French windows or similar comprising at least one metal section (2) of the type comprising an exterior lock (1) on the metal section (2); said lock (1) comprising an activating element (3) penetrating into the interior of the metal section (2) to control the displacement (4) of mobile equipment; said mobile equipment comprising an element (5) cooperating with said activating member (3) integral with an activating blade (6) or displacement guide; said blade (6) for activating or guiding during displacement supporting at least one latching element (8a, 8b), said mobile equipment (5, 6, 7a, 7b) being contained in the interior of said metal section, said mobile equipment (5, 6, 7a, 7b) being maintained close to the interior face of the edge of a metal section (2) by retaining means (10a, 10b), the latching members (8a, 8b) being separable from the mobile equipment so as to mount the mobile equipment at the interior of the metal section (2) while attaching it by one end of the metal section (2) and to mount the latching members (8a, 8b) via slots traversing the edge of the metal section (2), characterised in that said retaining means comprise small fixing plates (10a, 10b) disposed between the blocks (7a, 7b) for adjusting the depth of the latching members (8a, 8b) and the interior face of the edge of the metal section (2) and in that the small fixing plates (10a, 10b) are arranged to allow the blocks (7a, 7b) and the latching members (8a, 8b) to slide.
2. Device according to claim 1, characterised in that one retaining means (10a, 10b) has a retractable element (11) suitable for preventing the window, door or sliding French window to close, in such a way as to avoid any jarring of the latching members (8a, 8b) on the corresponding catch (G) .
3. Device according to claim 1 or 2, characterised in that the latching elements (8a, 8b) are fixed with the aid of at least one fixing means (25) forming an angle with the direction of depth adjustment of the latching members (8a, 8b).
4. Device according to claim 3, characterised in that said fixing means (25) simultaneously ensures retention in position and blocking of the depth adjustment of the latching member (8a or 8b).
5. Device according to one of the preceding claims, characterised in that said cooperating organ (5) is fork-shaped.
6. Device according to one of the preceding claims, characterised in that the latching element(s) (8a, 8b) is/are hook-shaped.
7. Device according to one of the preceding claims, characterised in that the mobile equipment is kept in position by an indexing means.

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