FR2764928A1 - Security lock for garage door or other door or window opening - Google Patents

Abstract

The lock is intended for a door, window or trap-door and is especially suited to a pivoting garage door (2). It comprises a locking element (6) mounted on the opening panel (3), co-operating with a striking plate (7) which includes an opening (8) in at least one of the uprights or cross members of the door frame (4), or in the masonry. The lock comprises a security bolt (12) which fixes and holds in position the locking element (6) on the door panel (3), with a screw (15) passing through an orifice (16) formed in the body (17) of the locking element. This co-operates with a nut (13), with a head (18) being lodged in a cut-out section of the body (17). The locking element (6) has a variable series of index devices in order to receive a corresponding set key.

Description

 The invention relates to a safety and locking device for any type of opening, door, window or the like, in particular for a garage overhead door, comprising at least one locking member mounted on the opening and capable of to cooperate with a keeper, in particular in the form of a recess in at least one of the uprights and / or crosspieces of the frame, or even at the level of the masonry.

 The present invention relates to the field of building hardware and, more particularly, that of security devices and other locking systems for opening. In fact, the present invention will find a very particular interest in the context of burglary protection of garage doors, various boxes, without however being limited to this type of specific application.

 For many years, efforts have been made to develop complex locking fittings of the multipoint type, intended to prevent break-in or at least make it more difficult, this at the level of entry doors, balcony doors and other similar openings. Often these are, moreover, consolidated at the level of their structure by reinforcements of all kinds such as anti-defogging devices, a reinforcement and a multiplication of rebates in order to prevent the setting by means of tools. for example a crowbar.

In contrast, the design of secondary openings, such as garage doors or the like seems to have given rise to a reverse approach.

 Even if it is not always possible to access the apartments through the premises closed by such a tilting door, they often contain various things of value, such as a vehicle, but also bicycles or motorcycles and other equipment, such as lawn mowers, power tools and even drinks.

 Thus, it is more and more frequent that the opening of such a garage door is made up, no more, no less, by a sheet or a juxtaposition of plastic blades attached to a frame formed by an assembly of profiles. light metal, this in order to save raw material, but above all, a weight saving avoiding the use of efficient counterweight. Thus, simple springs allow, now, to ensure an opening operation with ease. Note that by reducing the weight of the opening of a garage door, it allows, in the event of motorization, the use of motors of reduced power and, consequently, less expensive. If this weight gain at a tilting garage door leaf appears a priori as an advantage, it should, however, be taken into account that it has led, in parallel, to a substantial reduction in resistance. mechanics of these openings. Thus, these offer, now, very little resistance to an attempted break-in carried out at the crowbar, a tool of choice for both professional burglar and beginner.

 In fact, by deforming, through this, the opening, it is quite easy to access, or even to make inoperative the various locking systems usually fitted to this type of tilting door. By way of example, such locking systems usually consist of a control unit disposed, substantially, in the center of the opening and operable by means of a handle, the assembly possibly being lockable by means of '' a key element such as a barrel. Ultimately, this control unit abuts one or more operating rods whose free ends define locking members intended to cooperate with a keeper formed at the uprights or crosspieces of said door, window or the like or even at height of the threshold of the latter. Note, in this regard, that such strikes can be in the form of simple recesses in the frame or in the masonry.

 Of course, it is already known other blocking security devices able to equip, additionally any type of opening already provided or not with a locking system. This is the case with the lock, the use of which is particularly widespread and which has the drawback, when it is desired to have several locks on the same opening, to require, for their locking and unlocking command, separate keys.

 In addition, very often the problem arises of the installation of these locks on an opening constituted, substantially, of a frame coated with a simple sheet metal or with a facing made of plastic strip. Indeed, the width of these locks prevents them from being placed on the frame only, unless the latter is modified and reinforced in the desired places, an operation which cannot be envisaged by a person not experienced in welding, for example. .

 There are, moreover, more studied devices for each application, but, which, again, the installation is relatively delicate and requires specific arrangements on the opening, even on the frame of the garage door or at the level of masonry. Anyway, such devices are particularly expensive.

 Ultimately, the present invention proposes to make available to everyone a safety and locking device of a simple design and, therefore, inexpensive, if such a device can be used on any type of current, it will be of particular interest in the context of an application to secondary doors, more specifically garage overhead doors, which, because of their dimensions and often lightened structures, are particularly vulnerable to burglary attempts carried out using a crowbar for example.

 To this end, the invention relates to a security and locking device for any type of door, window or the like, particularly for a garage overhead door, comprising at least one locking member mounted on the door and at even to cooperate with a keeper, in particular in the form of a recess in at least one of the uprights and / or crosspieces of the sleeping frame or also at the level of the masonry, characterized in that it comprises a safety bolt ensuring the fixing and keeping the locking member in the locked position on the opening, the nut of this bolt being made integral with this opening, while the screw passing through an orifice made in the body of the locking member in view to cooperate with the nut, comprises a screw head which is received in a counterbore in said body of the blocking member and having variable indexing means for the reception of a suitable operating key.

 According to a feature of the present invention, the body of the locking member is of the monolithic type made of very hard material, such as treated steel, special cast iron or the like.

 In addition, according to another feature of the present invention, the screw head comprises different variable indexing means allowing a multitude of combinations between them, to each of the combinations corresponding to a single key of suitable shape.

 The advantages arising from the safety and locking device according to the invention consist in that it is of a particularly simplified design insofar as it is presented, roughly, in the form of a monolithic blocking member and a bolt whose nut is fixed on the opening, knowing that the strike can be a simple hole made at the level of the frame or the masonry for the reception of the active part of this blocking member. Under these conditions, this can be determined to be bulky and solid enough to withstand attacks by crowbar or other similar tool, or even to break-in attempts carried out using a grinder, especially as the tools Self-powered power tools are widely used these days.

 Knowing that it is useless to want to pretend to prevent a burglar, in particular experienced, from entering premises, the present invention provides a solution to break-ins, in particular of secondary premises, carried out at high speed by occasional burglars. Indeed, by multiplying this kind of security and locking device, in accordance with the invention, at the level of garage doors, these become more resistant to crowbar or other conventional tool of this kind, so that its openness can only be achieved by spending more time on it.

 Other objects and advantages of the present invention will emerge during the description which follows, relating to an embodiment which is given only by way of indicative and nonlimiting example.

The understanding of this description will be facilitated by referring to the attached drawings and in which
- Figure l is a schematic representation in section of the security and locking device according to the invention, applied to a tilting opening of the garage door type
- Figure 2 is a partial schematic view in section of this security and locking device with which is associated an alarm system
- Figure 3 is a schematic plan view of the screw head provided with variable indexing means
- Figure 4 is a schematic perspective view of said screw
- Figure 5 is a schematic representation in section and in the form of a first embodiment of a key adapted to the variable indexing means of a screw
- Figure 6 is a schematic representation in section similar to Figure 5, showing, in particular, a key executed according to a second embodiment.

 The present invention relates to the field of building hardware and, more particularly, relates to a safety and locking device l which, if it is applicable to any type of opening, will find particular interest in the context of a garage overhead door 2, as shown, in particular in FIG. 1 of the attached drawings.

 In this regard, such a door 2 comprises an opening 3 pivotally mounted on a sleeping frame 4 using suitable means shown, here partially and by way of example of embodiment, in the form of link arms 5, knowing , in this regard, that other solutions are possible.

 To return to the safety and locking device 1, the latter comprises a locking member 6 mounted on the leaf 3 and able to cooperate with a keeper 7 which, as shown in FIG. 1, can take the simple expression a recess 8 formed, as the case may be, at the level of the sleeping frame 4, in particular at the level of an upright or else of a crosspiece thereof, or even, at the level of the masonry.

 Given that in the context of these tilting doors 2 the opening 3 is the most vulnerable in its lower part 9, there has been shown, in FIG. 1, a locking safety device 1 located in this lower part 9 of the opening 3, the locking member 6 comprising its active part 10 engaged in a keeper 7 in the form of a hole made in the ground 11.

 In fact, according to the invention, this safety and locking device 1 comprises a safety bolt 12 ensuring the fixing and the maintenance in the locked position of this locking member 6 on the opening 3. More particularly the nut 13 of this safety bolt 12 is made integral with the opening 3, while the screw 15 passes through an orifice 16 formed in the body 17 of said locking member 6 in order to cooperate with the nut 13.

 Advantageously, the head 18 of this screw 15 comes to be housed in a countersink 19 provided for this purpose in the body 17 of the locking member 6 and comprises, according to the invention, variable indexing means 20, 20A, 20B for the reception of a suitable operating key 21.

 It should be observed that if the present description attaches, in particular, to an embodiment where the locking member 6 is fixed, by means of the safety bolt 12, to the external side 22 of the opening 3 one could obviously imagine its mounting on the internal side 23 of this opening 3 while ensuring the inaccessibility of the nut 13 and provided, of course, that one can access without difficulty and from inside the door 2.

 To return to the nut 13, it is preferably integrated with a reinforcement 14 associated with the opening 3 and which, substantially, may be one of the tubular sections constituting the frame corresponding to this opening 3. However, the 'It is also possible to design this reinforcement 14 in the form of an additional part, making it possible to have the nut 13 on the opposite side 23 of the opening 3 to that 22 receiving the locking member 6. Note, under these conditions, that to the right of this nut 13 is formed, in this opening 3, an orifice 24 for the passage of the screw 15 passing through, moreover, said locking member 6.

 It should also be observed that any type of mechanical connection, welding or other is applicable for fixing the nut on the opening leaf 3, in particular in an integrated manner to a reinforcement 14.

 According to the invention, in line with the recess defined by the countersinking 19 in the body 17 of the locking member 6 can be mounted, on the front face 25 of the latter, and pivotally, a cover 26 which must be pushed back by the user to access the head 18 of the screw 15 using the operating key 21.

 It should also be noted that this cover 26 can constitute, substantially, the device for triggering an alarm 27, as shown in FIG. 2.

 More specifically, a detector 28, of the infrared, ultrasound or similar type, integrated in the body 17 of the locking member 6, is able to detect the opening of the cover 26 allowing access to the screw 15 and if the alarm 27 has not been cut off beforehand, for example using a remote control 29, is capable of causing the operation of a siren 30 or even also of another means of visual signaling. These, like the siren, are preferably supplied with the aid of autonomous electrical supply means 31. It should be noted, in particular, that the triggering of the alarm can be ordered, in this case, before the door is opened. garage which is a significant advantage.

 In this figure 2 is further illustrated, in broken lines and partially, the locking member 6 in its unlocking position in which it is held using appropriate means 32, here shown in the form of a single screw standard mounting.

 Thus, after having unscrewed the screw 15 of the safety bolt 12, the user can easily maintain this locking member 6 fixed on the opening 3 in an unlocked position. This subsequently facilitates the replacement, and therefore in the locked position, of this locking member 6.

 According to a feature of the present invention, this locking member 6 is of the monolithic type made of very hard material for example such as hardened steel, special cast iron or the like. It should also be noted that due to the reduced cost price of such a safety and locking device 1, the cross-section and the material of this blocking member 6 can also be determined in a consistent manner to make it difficult or even impossible to attempt a break-in carried out using a grinder for example.

 To return to the variable indexing means, 20, 20A, 20B, associated with the head 18 of the screw 15, as well as the operating key 21 of suitable shape, lton will observe, more particularly in FIGS. 3 to 6 , that such indexing means 20 can borrow different embodiments without counting that lton can combine them to offer an immense variety of different solutions, each of which corresponds to a single key.

 Thus, these indexing means 20 can be constituted by an external contour 33 of the head 18 having, systematically, a particular shape allowing the engagement on this head 18 of the screw 15 only with an operating key 21 provided a recess of a strictly adapted shape.

 According to the embodiment illustrated in particular in Figure 3, these indexing means 20 can also take the form of an irregular notch 34 on the periphery of this head 18 of the screw 15, all or parts of the teeth 35 of this notch 34 respecting , between them, a variable angle.

 These indexing means 20A can also be defined by two or more holes 36, 36A formed axially in the head 18 of the screw 15, the angle A of offset between each of these holes 36, 36A being, here again, variable to correspond only to a single operating key 21 comprising indexing pins 37 offset, angularly, so as to correspond with the holes 36, 36A.

 Finally, according to a preferred embodiment of the present invention, one comes to combine several of these types of indexing means 20, 20A to arrive at a solution shown in FIG. 4 and marked 20B.

 Thus, according to this embodiment, there is, first of all at the contour 33 of the head 18 of the screw 15, a toothing 38 at the level of which at least two indexing pads 39 are provided, of which there is possible to vary the angular offset B.

 In addition, at the head 18 of this screw 15 is formed at least one axial hole 40 for the reception of an indexing pin 37, the angular offset C of this hole 40 relative to an indexing pad marked 39 ' being subject to change.

Finally, at the level of this head 18 of the screw 15 may also be provided at least one second axial hole 41 whose angle D of offset with respect to the first hole 40, can, there also be modulated.

 It is obvious, of course, that by varying the angles B, C and D independently or simultaneously, one arrives at a multiplicity of possible combinations which can be further increased by multiplying the number of holes 40, 41. In the end, this reduces, all the more, the probability that the processor of such a security and locking device 1 has an operating key 21 identical to that of another.

 About this operating key 21, when the indexing means 20B correspond to an addition of different types of indexing means 20, 20A, such as an outline 33 or an irregular notch 34 or a toothing 38 with studs indexing 39, combined with axial holes 36, 36A; 40, 41 said operating key 21 must be defined so as to adjust to all of these indexing means 20B, knowing that the resistance of the latter, taken independently, can be determined so that a operation 21 which only partially agrees with such indexing means does not make it possible to control the loosening of the screw 15.

 As visible in FIGS. 5 and 6, said operating key 21 can thus have a recess 42 whose configuration of the internal wall 43 is strictly adapted, as the case may be, to the contour 33 or to the irregular notch 34 or even to the toothing 38 with indexing pads 39 of the head 18 of the screw 15. This operating key 21 also receives, arranged internally at the recess 42, the indexing pins 37 intended to correspond with the holes 36, 36A ; 40, 41.

 If the representation in FIG. 5 corresponds to a simplified embodiment of this operating key 21, it will be observed, as visible in FIG. 6, that to facilitate the angular positioning and the nesting of this operating key 21 on the head 18 of the screw 15, the indexing pins 37 can be mounted sliding, axially, in the recess 42, these indexing pins 37 being, moreover, pushed back into a projecting position under the impulse of means elastic return 44. In fact, according to a preferred embodiment, the indexing pins 37 are mounted integral with a plate 45 movable axially in the recess 42 of the operating key 21, the elastic return means 44 formed at the bottom of the recess 42 pushing forward the plate 45 against a stopper 46.

 Thus, during the positioning of the operating key 21 on the head 18 of the screw 15, one comes, first of all, to ensure the engagement of the indexing pins 37 in the holes 36, 36A 40, 41 before to continue the movement and effectively engage said operating key on the head 18.

 As already specified above, the engagement alone of the indexing pins 37 does not make it possible to ensure the rotation control and therefore the loosening of the screw 15. In fact, an attempt in this direction leads, here, to deterioration of said indexing pins 37 therefore of the operating key 21.

 Finally, it should also be noted that, in order to facilitate, not only the engagement of the screw 15 in the orifice 16 of the body 17 of the locking member 6 but also in order to ensure perfect positioning of the latter on the opening 3, this orifice 16 may have a frustoconical mouth 16A with which there comes a transition of frustoconical shape 18A between the head 18 and the threaded rod of the screw 15.

 As is apparent from the above description, the present invention leads to a safety and locking device of particularly simple design and, therefore, inexpensive.

This does not prevent such a safety and locking device making it possible to respond advantageously to the problem posed as set out in the introductory part of this description.

 Although the invention has been described in connection with a particular embodiment, it is understood that it is in no way limited thereto and that there can be made various modifications, forms, materials and combinations of these various elements, without departing from the scope and spirit of the invention.

Claims (12)

Claims  1. Safety and locking device (1) for any type of opening, door, window or the like, in particular for garage overhead door (2), comprising at least one locking member (6) mounted on the opening (3) and able to cooperate with a keeper (7), in particular in the form of a recess in at least one of the uprights and / or crosspieces of the sleeping frame or also in masonry, characterized in that it comprises a safety bolt (12) authorizing the fixing and maintaining in the locked position of the locking member (6) on the opening (3), the nut (13) of this bolt (12) being made integral with this opening (3), while the screw (15), passing through an orifice (16) formed in the body (17) of the locking member (6) in order to cooperate with the nut (13), comprises a head of screws (18) being received in a counterbore (19) in said body (17) of the locking member (6) and having variable indexing means (20; 20A; 20B) for re ception of a suitable operating key (21).  2. Safety and locking device according to claim 1, characterized in that the body (17) of the locking member (6) is of the monolithic type made of very hard material, such as treated steel, cast iron special or otherwise.  3. Safety and locking device according to any one of the preceding claims, characterized in that, in line with the recess defined by the countersink (19) in the body (17) of the locking member (6 ) is mounted, on the front face (25) of the latter and pivotally, a cover (26) giving access to the head (18) of the screw (15).  4. Security and locking device according to claim 3, characterized in that the cover (26) constitutes, essentially, an alarm triggering member (27) comprising a detector (28), of the infrared, ultrasonic type. or the like, integrated in the body (17) of the blocking member (6) and capable of detecting the opening of the cover (26) for controlling the operation of a siren (30) and / or other means of visual signaling supplied by means of autonomous electrical supply means (31), in particular before opening the opening (3).  5. Safety and locking device according to any one of the preceding claims, characterized in that it includes means (32) capable of maintaining the unlocked position of the locking member (6) on the opening (3).  6. Safety and locking device according to any one of the preceding claims, characterized in that the nut (13) is integrated with a reinforcement (14) associated with the opening (3).  7. Safety and locking device according to any one of the preceding claims, characterized in that the variable indexing means (20) are constituted by an external contour (33) of the head (18) having a particular shape authorizing the engagement on this head (18) of the screw (15) of an operating key (21) provided with an obviously of strictly adapted form.  8. Safety and locking device according to any one of the preceding claims, characterized in that the indexing means (20) take the form of an irregular notch (34) at the periphery of the head (18) of the screw (15) and comprising teeth (35) respecting, between them, a variable angle.  9. Safety and locking device according to any one of the preceding claims, characterized in that the variable indexing means (20A) are defined by two or more holes (36, 36A) formed axially in the head ( 18) of the screw (15), the angle (A) of offset between each of these holes (36, 36A) being variable so as to correspond only to a single operating key (21) comprising indexing pins ( 37) offset, angularly, so as to correspond with said holes (36, 36A).  10. Safety and locking device according to any one of claims 1 to 6, characterized in that the variable indexing means (20B) are constituted  - At the level of the contour (33) of the head (18) of the screw (15) by a toothing (38) provided with at least two indexing pads (39) of variable angular offset (B)  - An axial hole (40) formed in the head (18) of the screw (15) for the reception of an indexing pin (37), this axial hole (40) respecting, relative to an indexing pad marked (39 '), an angular offset (C) capable of being modified  - At least one second axial hole (41) formed in the head (18) of the screw (15) respecting with respect to the first axial hole (40) a variable offset angle (D).  11. Safety and locking device according to any one of claims 7 to 10, characterized in that the operating key (21) has a recess (42) whose configuration of the internal wall (43) is adapted, depending on the case, with an irregular contour (33) or notch (34) or alternatively with teeth (38) provided with indexing studs (39) of the head (18) of the screw (15), this operating key (21) receiving, moreover, disposed internally at the recess (42), one or more indexing pins (37) intended to correspond with the hole or holes (36, 36A; 40, 41).  12. Safety and locking device according to claim 11, characterized in that the indexing pins (37) are mounted integral with a plate (45) movable axially in the recess (42) of the operating key (21), elastic return means (44) formed at the bottom of this recess (42) pushing the plate (45) against a stop (46) in order to bring said indexing pins (37) into a protruding position.