EP0963498B1 - Door lock - Google Patents

Description

Field of the invention

The present invention relates to a closing device for a door, in particular double leaf comprising a lock provided with a latch bolt.

State of the art

In known type devices, the latch bolt is actuated by a handle via a nut. However, these devices have disadvantages. One drawback is that a door provided of this type of closure cannot be closed by folding down the door on which it is mounted, but it requires actuation of the handle to allow it to close. This can be inconvenient for the user, in particular when loaded or unable to easily operate the handle for some reason.

Another type of known device comprises a housing comprising a plaster, to which is attached a headrest, and a closing mechanism, the housing being closed by a cover which is screwed onto the plasterboard. The housing is designed for house a safety lock arranged to actuate a deadbolt lockable by a locking member. One drawback here lies in the location of the locking member causing a certain size compared to the deadbolt. Another drawback is the location of the recall means. These are usually located from so as to occupy a certain clean space which must be taken into account for the sizing of the housing. This is particularly the case when the means of reminder are wrapped around the latch bolt. This provision of the means of recall can also expose these to outside disturbance.

An additional disadvantage is that the cover is removable thus allowing relatively easy access for an unauthorized person to contents of the case, that is to say the closing mechanism, which is returned possible by removing the cover from the plasterboard. This poses a problem serious from the point of view of the safety of the closing device.

Statement of the invention

The purpose of the closure device according to the present invention is to remedy to the aforementioned drawbacks. To this end, it is proposed according to the present invention as a device as defined in claim 1. Thus, thanks to the device according to the invention, the latch bolt is made retractable with the click of the door, so without handling the handle.

According to a preferred embodiment, the latch bolt has one end bevelled attack profile, preferably between 30 ° and 60 °, preferably still between 40 ° and 50 °, the bevel being oriented laterally towards this side which promotes easier retraction of the latch bolt.

An advantageous embodiment of the device according to the invention is defined in claim 2. The aforementioned control unit ensures control of reliable and efficient bolt. In addition, the construction of the first and second means of taking turns out to be simple and inexpensive.

According to a more particular embodiment of the invention, said means of adjustment is formed by a projecting element attached to the surface side of the latch bolt. This construction reduces considerably the lateral dimensions of the closing mechanism according to the direction of the axes of rotation of the handles. In addition, the bulk due to means of returning the latch bolt is eliminated, since it is housed in the organ command of it. In addition, this provision provides protection effective of the return means against an external disturbance.

A more specific embodiment is defined in claim 4.

An adjustment possibility for the latch bolt is provided by the adaptation adequate number of openings in the latch bolt. This allows a initial offset and adjustment of the respective rest positions of the latch bolt and the wheel as a function of the transverse dimensions of the support tube.

Advantageously, an additional co-operating reminder means is provided. directly with the latch bolt so that it can be brought to extend and retract independently of the lug and the door handle.

The arrangement defined in claim 13, and more particularly in the claim 14, is very advantageously compact while ensuring efficient and safe operation of the locking member by its arrangement guided between the deadbolt and the support plate. In addition, the organ of the aforementioned locking is of very simple construction while ensuring a extremely effective deadbolt locking.

Furthermore, thanks to the specific measure defined in claim 15, with the maintenance of the reminder means that it receives, any risk of dislocation of the means recall out of the locking means subject to frequent movements of back and forth, when the lock is used, is thus avoided.

With the measurement defined according to claim 16, a deadbolt is obtained which is adjustable according to the transverse dimensions of the support tube on which the closure device is intended to be mounted. Number of adjustment possibilities depends directly on the number of notches in the deadbolt.

The measurement defined according to claim 17 makes it possible to bring together the first and second means of recall in a single means having two functions, which makes mounting significantly simpler and further reduces considerably the space requirement by the elastic return means.

With the measurement defined according to claim 18, a reduction in the number of holes in the support tube, which increases sensitive to the resistance and the resistance of the latter. The security of the closure is reinforced.

To loosen the sockets hidden in the support tube, use it is necessary to have an appropriate tightening key, held only by authorized persons. By customizing systems wrench / socket, it is possible according to the present invention, by conferring a configuration of unique and personal gripping means, to obtain a closure which, once fitted, has considerable reliability. So in particular, the aforementioned first and second gripping means are each formed by a notch and a complementary projection making it possible to form a tenon-mortise connection. The above is obtained with the measurement defined according to claim 19.

With the measure defined in claim 20 and thanks to the integrated structure of the lock case, in which the cover and the plaster are integrally body with each other, the lock case is practically inviolable and the the safety of the closing device is considerably enhanced.

Other advantages and features of the closure device according to the invention will emerge from the more detailed description given below of an example of realization illustrated by means of the appended drawings.

Brief description of the drawings

Figure 1 shows a partially exploded perspective view of a first embodiment of the closure device according to the invention.

Figure 2 shows an exploded perspective view of a second mode of realization of the closure device according to the invention.

Figure 3 illustrates an internal sectional view of the closure device according to the invention showing the operation thereof.

Figure 4 shows the device according to Figure 1 in the assembled state.

Figures 5 and 6 show views with variants of a detail in enlarged device according to Figure 1.

Figures 7 to 9 illustrate different views of another enlarged detail of the closing device according to figure 2.

FIG. 9a illustrates the mode of cooperation between the lock part of the device according to Figure 4, on the one hand, and the striker part of the device according to Figures 7 to 9 on the other hand.

Figures 10 and 11 illustrate a top view of a first variant of the device shown in Figure 2 in the assembled state with incorporation of a additional adjustment element.

Figures 12- and 13 are views similar to Figures 10 and respectively 11 of a second variant of the device.

Figure 14 illustrates a view similar to Figure 3 of another variant of execution of the device according to the invention.

Figures 14A and 14B illustrate views of a detail of Figure 14 similar in Figures 5 and 6.

FIG. 15 illustrates different possibilities of combination of assemblies of the part of the device shown in Figure 3 with different housings.

Figures 16 and 17 illustrate each of the views of a part of the device according to the Figure 10 in the exploded and respectively mounted state.

Figure 18 illustrates a view similar to Figure 16 of the device according to the figure 12.

Figure 19 is a representation similar to Figure 15 combining according to the first and respectively the second variant mentioned above.

Figures 20a to 20i illustrate the operation of another variant of execution of the device similar to FIG. 14.

FIG. 21 illustrates a variant of manipulation of the lock part of the device.

Description

The present invention generally relates to a closure device, in especially for door, with lock. The closing device described applies in particular to any type of opening, such as gate, barrier, pivoting door provided with a profiled lateral side in tubular form as in the example described below and of generally any size.

In Figure 1 is illustrated the lock device which comprises a housing 10 in which is housed the lock 8 with plaster on which is fixed a cover.

The housing 10 is designed to house a lock mechanism making it possible to order at least one bolt, as illustrated in figure 3. In the example below, a control mechanism for a latch bolt 21 and a bolt frame 22 each having an elongated shape is described. In particular, the exemplary structure of the mechanism described below allows the transformation of a rotational movement of a control member 65 which is driven by a handle 2, in a translational movement of the bolt. Each bolt 21, 22 is intended to engage in the aforementioned tubular profile 19 under the action of a member respective actuation. Conventionally, the actuating member of the latch bolt 21 is constituted by a handle 2 provided on either side of the door and the actuator of the deadbolt 22 by a key 1, for example inserted into a security lock 8. However, FIG. 21 illustrates a variant of operation in which training is carried out by the action of the user directly by rotation of a key in the lock without handle.

In the closing device, the control member 65 comprises advantageously a wheel 25 which has on its periphery an element of socket forming a lever such as a lug 66. The lug 66 is arranged to engage with a corresponding grip element such as a protruding element provided on the latch bolt 21. The projecting element can be completely removable of the type screw 4 (Figure 5) or form an element 45 incorporated and integral with the bolt 21 (Figure 6) or else an element 213, 216 which can be moved within the bolt 21 (FIG. 14A). The wheel 25 is arranged in a substantially concentric manner around the nut 18. The wheel 25 also has on its periphery another lug 70 forming a stop intended to limit the stroke of the wheel. To this end, the plate of support 35 has on its leading edge a stop 20 intended to limit the stroke of the locking lug 70 of the wheel. The wheel is secured to the nut 18 by attaching itself to the bottom thereof to the support plate 35, so as to form an annular groove 68.

An elastic return means 71 is provided for bringing back the latch bolt 21 in its rest position. Advantageously, the abovementioned return means 71 allows retraction and exit of the latch bolt without the lug or the handle should not move. Preferably, the abovementioned return means 71 is consisting of a spring arranged coaxially around the latch bolt. In this regard, the spring 71 advantageously has an outline of oval section matching the two mutually opposite side walls 99 of the latch bolt by pressing against the projecting element 4; 45; 216 and thus winding advantageously around the latch bolt 21, further allowing a reversing the position of the latch bolt. In addition, thanks to the spring 71 of the bolt U-turn 21, the latter 21 can be actuated retracted or projecting without the lever 66 or the handle 2 must not be moved and / or actuated.

Another return means is produced in the form of a spiral spring 74 wrapping around the nut 18 in the annular groove 68 above to act on the wheel 25. In order to ensure good support of the spring, a notch 69 is provided on the periphery of the wheel, preferably in the non-useful area thereof, that is to say outside the lug area 72. The notch 69 then serves as a housing for a 70 'spring primer. Preferably, the nut and wheel assembly is arranged between the latch bolts 21 and the deadbolt 22.

Furthermore, the thickness of the wheel 25 is less than the diameter of the latch bolt 21. The spiral spring 74 is entirely housed in the groove annular 68. This arrangement of the spring and the wheel makes this device more compact closure and therefore offers the advantage of considerably reducing the size of it. Preferably, the spiral spring 74 is metallic.

The deadbolt 22 has a double axial alignment of notches 83 and respectively of notches 76, 77, 78. The notches and notches extend from preferably each transversely to the axis of the bolt 22. In each alignment, the profile of the notches and respectively of the notches is practically identical. The alignment of the notches is turned towards the organ of command 65.

Opposite the alignment of notches 83, a locking member 55 serving latch is arranged to slide transversely relative to the direction of sliding of the deadbolt 27, between the latter and the support plate 35. Thus, the locking member is formed for example by a plate sliding 50. On the support plate 35 is provided a guide 51 allowing the transverse sliding of the wafer 50. The wafer 50 has, of preferably a substantially rectangular shape and thus has an edge leading edge 48 and a trailing edge 48 ′ forming a latch ramp. Brochure 50 is provided with a loop 53 protruding from the plate starting from the inside of the wafer as visible in FIG. 1. The wafer 50 is slidingly housed in the aforementioned guide 51, between the lateral surface 29 of the recessed portion 103 of the bolt 22 and the support plate 35, the loop 53 being turned outward so as to engage with the notches 83 of the deadbolt. This arrangement of the locking member is particularly advantageous by its very small footprint and by its reliability.

Another additional reminder means 39 is provided opposite the loop 53 of so as to return the wafer 50 to its rest position. This one is formed for example by an elongated type spring with two branches 46, 47 in the form hairpin. The branches 46, 47 of the spring have a length raised to ensure effective return of the insert to its position rest while not requiring too high pressure on it thanks to the leverage obtained by the length of the branches 46, 47 of the spring 54, which, from preferably is also metallic.

The other abovementioned return means 39 and 74 are advantageously combined in a single spring 171. Thus, the hairpin spring 39 is connected by one of its branches 47 to the spiral spring 59, at the free end thereof. The spring 39 extends outside the annular groove 68, the cylindrical casing 49 wheel 25 being advantageously interrupted on part of its periphery. This allows a convenient passage of the return means 171 as visible in Figure 3. The interruption zone is for example formed by a peripheral recess delimited laterally by two shoulders allowing a rotation of the wheel 25, despite the presence of the return means 171 which remains practically in place. The aforementioned rotation is thus limited by the shoulders. Thus, the spring 171 according to the invention has a double function by its action on the latch bolt and on the locking member. The number of rooms is reduced, the mounting speed of the closing device increased and reduced dimensions.

Preferably, the loop 53 is arranged on a median axis of the wafer 50 so as to ensure a better balance of forces acting on it. Advantageously, the loop is stamped from the plate without removal of material. This considerably improves the solidity and the resistance of the loop to the plate. The loop 53 is attached to the plate at one point inside of it and can extend linearly along a determined slope. As can be seen in FIG. 1, the loop 53 can however also be attach to the plate at two interior points 191, 192 so as to form a passage eyelet for the branch 46 of the spring 39.

To ensure adequate safety for the locking device, each bolt 21, 22 has a significant length. The bolts 21, 22 are mounted at axial sliding in the closing device. To allow the sliding bolts, passages are provided in the headrest 7, as well as in the tubular profile 19. The passages 56, 57 and 58, 59, which are provided respectively-to allow the passage of the latch bolts 21 and dormant 22 through the tube 19, are arranged in a mutually opposite manner on the periphery of the tube 19 and in alignment with the respective corresponding passage 36, 38 in the headrest 7. A support plate 35 is attached perpendicular to the headrest 7 at a longitudinal edge thereof. The form of the plate 35 is advantageously adapted to the internal shape of the housing 10. Guide elements 37, 39 of the bolts 21, 22, for example a grommet guide attached to the support plate 35, are arranged in alignment the aforementioned bolt passages 36, 38. Given the relatively long pronounced each of the bolts 21, 22 it is important to ensure excellent guiding stability of these in their axial sliding along the arrow designated by F. For this purpose, the guide elements 37, 39 are attached to the edge of the plate 35 which is opposite to that to which the headrest 7 is attached, thus ensuring a maximum distance between the two guide locations of each bolt 21, 22.

As shown in FIG. 3, an additional guide eyelet 40, 41 is provided for each bolt in the extension of each bolt passage 36, 38 thus increasing the support surface of each bolt and therefore its stability.

A receiving means 120 is provided for the lock, in particular the bolt U-turn, to which it is specifically adapted, which 120 is intended to be arranged on an opposite upright 119 facing the upright 19 on which is mounted the lock 10. More particularly, the aforementioned reception means 120 comprises a receiving plate 121 in which is provided at least one receiving port 122, 123 for each corresponding bolt which is in alignment therewith, and a socket plate 125 attached thereto and provided to be entered by the user. The perforated receiving plate 121 and the outlet plate 125 form an angle α between them, in particular between 35 and 55 °, preferably approximately 45 °. The socket plate 125 is provided a handle member 126 adapted thereon. More specifically, the handle element 126 is made of a synthetic material, preferably applied by injection to plate 125.

The aforementioned receiving means 120 functions both as a receiving plate for the introduction of the bolt as well as a means of consolidating the locking by the presence of notches in which the bolts can be locked, and a handle allowing the opening of the second leaf of a double revolving door. Thus, the striker receiving means 120 serves both to receiving plate with support plate for the handle to push the bolt, locking plate for the bolts, and handle.

The adapter plate 199 also makes it possible to adapt a keeper 120 for profile square 190, 191 on a round profile 192, 193. The abovementioned adapter plate 199 also makes it possible to equalize the roughness present on the tubular profiles, thanks to the hollow embodiment thereof 199 as shown in FIG. 19.

FIG. 16 more particularly illustrates that the square receiving strike or rectangular acts as a stop and is reversible. The fixation is extremely easy since it uses the same perforations as the actual lock.

For the more specific case of strikes for round profiles, as illustrated on the figure 18, the fixing is carried out by collar 267 and no additional hole must be drilled in the profiles.

FIG. 10 illustrates a variant of the closure device comprising a stop door 260 cooperating with a hanging plate (door lock-stop) 250 by gripping means 261 and respectively 251 provided on the surfaces of corresponding contacts facing each other. The aforementioned gripping means 251, 261 advantageously consist of longitudinal grooves extending in the direction of the tubular profiles 190, 290; 191 so that a preset can be performed by appropriate fitting of the plate hooking 250 and door stop 260 according to the arrow designated by K. So we can take into account the size of the tubular profile 190 or 191 to which the closing device must be fitted. This is clearly illustrated in Figures 10 and 11.

Figures 12 and 13 illustrate a similar arrangement for round profiles where the contact surfaces cooperating with each other by the gripping means 261, 281 of the door stop 280 and respectively of the hooking plate 260, have a rounded shape, so that the adjustment is made according to a rotational movement designated by arrow J. Thus, account can be taken of more or less large diameters of tubular profiles 192 and respectively 193.

The aforementioned contact surface produced in grooves 251 and respectively 261 for square or round tubular profiles are illustrated in Figures 16 and respectively 18.

FIG. 9a clearly illustrates the use of the receiving plate 120 of the bolts 21, 22 of the lock, like handle 126 for opening the second swinging from a double door.

Advantageously, the latch bolt 21 cooperates directly with the handle integrated 125,126 and has for this purpose a beveled end 72 as illustrated in FIGS. 4 to 6. Preferably, the bevel angle 72 corresponds substantially at the angle α of the integrated handle 126. This will allow advantageously closing the corresponding door leaf by simple slamming the door without having to manipulate the lock. The set is also illustrated in FIG. 2 where the guide plate 301 can still be distinguished.

A damping strip 263, 270 is advantageously provided between the hooking plate 250, 260 and the tubular profile 190, 191; 192 so dampen noise when the door is closed. Additionally, this removes any backlash from so that the door is completely immobilized when it is closed and that it is no longer subjected to beating, for example in case of wind etc. Preferably, the cushioning strip is made of a material synthetic.

Thanks to the production of the means 251, 261 for contact surfaces above, and to the setting K or J that this allows depending on the shapes and / or dimensions of the tubular profiles, a single hanging plate 250 or 260 is still required depending on the shape of the square or round tubular profile. We thus obtains a standard lock device with dimensions which can vary from 40 to 80 mm as it appears from Figures 10 to 13.

Preferably, the bevelled surface 72 of the free end of the latch bolt 21 is slightly curved so that there is only one contact line between the bolt and the receiving surface against which it 21 abuts.

Furthermore, the deadbolt 22 has several notches 76, 77, 78 which are aligned along the longitudinal axis of the bolt 22 while extending practically transversely to it. The above notches are intended for each cooperate with a not shown drive stop of the lock 8. Depending on whether the drive cleat engages in one or the other notches 76, 77, 78, the bolt 22 will have a shortened or lengthened stroke compared to the headrest 7.

This possibility of adjusting the stroke of the deadbolt 22 makes it possible to adapt the lock to tubular profiles 19 of different dimensions and sections, such as round, rectangular or square as illustrated in figures 10 to 13. This constitutes an appreciable advantage because it allows the adaptation of a single lock to different types of tubular profiles, which considerably facilitates management stocks of such locks. A similar measure is planned for the bolt U-turn 21 providing the same adjustable stroke advantage of the bolt. So the stroke of both the latch bolt 21 and the deadbolt 22 is adjustable.

Fixing means are provided for fixing the headrest 7 to the tube 19. The said fixing means are formed by sockets 91, 92 intended to engage the aforementioned bolt passages 36, 38 by one of their respective ends 94. Said ends 94 of sockets 91, 92 are advantageously threaded and the bolt passages 36, 38 tapped in correspond to a sufficient depth to ensure a connection solid between the support tube 19 and the closure device.

The sockets 91, 92 are engaged in the passages 36, 38 through the openings cited above 56, 57 and 58, 59 respectively. To ensure convenient tightening sockets 91, 92 in passages 36, 38, sockets 91, 92 are provided with their respective opposite ends, around their periphery, of at least one means like a notch 93. The tightening of the sockets 91, 92 in the passages 36, 38 is then effected by an appropriate key 97, of cylindrical shape or prismatic and whose length is substantially greater than the section of the tube so as to allow manipulation of the key from the outside. The diameter of the tightening wrench 97 corresponds substantially to the diameter of the periphery of the end of the socket which has the notch 93. The tightening key 97 has at least one end at least one projection 98 intended to cooperate with notch 93. Thus, accessibility to the sockets is made more difficult after placement of these inside the tube 19.

As seen in Figure 1, the sockets present in the unthreaded area an enlarged head portion 95 forming a shoulder making it possible to retain the tube 19 against the headrest 7. The fixing by the sockets 91, 92 of the closure to the tube 19 by making use of the openings 56, 57 and 58, 59 which are at the same time intended for the passage of bolts 21 and 22 makes it possible to limit the number of openings in the tube 19. In addition, the grip surface relatively between the bushings and the threaded passages increases the stability of connection between the tube 19 and the closure device.

In addition, it is advantageous to provide a peripheral arrangement. particular of notches 93 in the sockets 91, 92 each having a profile particular. In the example illustrated, two diametrically opposite notches are provided, each with a rectangular profile. The advantage lies in the fact that loosening the sockets 91, 92 requires a key 97 which is provided of an end having a corresponding profile. This increases security of the locking device and therefore the reliability thereof, because it is thus possible customize the bushings and make them loose only possible for authorized persons.

More particularly, each socket is axially hollow, the inner wall being cylindrical. Correspondingly, the bolts present also a generally cylindrical appearance at least over part of their length. This results in yet another advantage of the sockets. Being willing along the axis of sliding of the bolts, the sockets indeed form a guide additional for the bolts as shown in Figure 3, thus contributing to their stability.

The second axial alignment of the transverse notches 76, 77, 78 is rotated on the opposite side with respect to the latch bolt and towards the entrance of the lock as well that it emerges from the figures. The notches are arranged to cooperate with a bit not shown of the safety lock. Thanks to the presence of several notches, it is possible to adjust the stroke of the deadbolt 6 in tube function. The number of taps in the deadbolt depends on the number of notches in it. In the example illustrated, for example, provision is made for each notch, that is to say for each adjustment of the bolt stroke, a notch corresponding to a closed position of the deadbolt, i.e. when the latter projects from the tube as shown in lines mixed in Figure 4 by the reference A, and a notch corresponding to the open position of the latter, that is to say when it is flush with the tube 19 as shown in solid lines in FIG. 4 by the reference B. could however also provide for an additional notch by notch corresponding to double locks or, more generally, to locks multiple.

In the headrest, two openings 171, 172 are provided for the passage of screws 173, 174. A first fixing screw 173 is used to securely fix the headrest with the support plate to the housing 10. Furthermore, the deadbolt has a shoulder 179 at a certain height leaving the truncated bolt longitudinally over a narrowed area of the bolt. The truncated area extends longitudinally from the inner end of the bolt which is turned towards the lock housing, up to the abovementioned shoulder 179.

The second fixing screw 174 is intended to fix the casing 108 of the lock safety at the closing device. To this end, the casing is at the level of the bit, pierced transversely with a threaded opening 175 which is placed opposite of a pierced threaded pillar 176. By bringing the second fixing screw 174 by the headrest we obtain a connection between the safety lock and the headrest which is all the more solid as the grip surface between the fixing screw 174, of a on the one hand, and the pierced pillar 176 and the transverse bore 175 of the lock, on the other hand, is great. To ensure easier mounting of the lock in the closing device, there is a retaining tab 177 extending along the lower contour of the lock entry 106 and connected to the pierced pillar 176 as illustrated in figure 3. The longitudinal recess of the deadbolt allows a vertical alignment of the latch bolt and the deadbolt while ensuring sufficient space for the aforementioned transverse sliding between the bolt frame and the support plate, plate or latch. So the closing device is more compact.

A stop rib is provided on the inside face of the headrest, practically next to the center of the nut. The stop rib extends perpendicular to the longitudinal axis of the headrest 7. It is intended to limit the stroke of the wheel in the direction of the projection of the latch bolt 21.

The profile of the notches 83 of the deadbolt 22 is adapted to the loop 53 of the locking member forming a latch 55. in particular at the slope and at the width thereof. Advantageously, the notches 83 are slightly flared so as to ensure engagement of the loop 53 in the notch 68 in smooth and smooth, when the locking member 55 slides towards the deadbolt 22 in the direction of the arrow designated by the reference G on the Figure 3 and engages with it.

The lock housing 10 shown in Figure 1 is in the form of a monobloc body integrating cover and plaster in a six-sided case 11, 12, 13, 14, 15, 16. The case forming a case 10 has on one of the faces 16 a opening 33 intended to receive a headrest 7 which is independent of the housing well said.

Thanks to the one-piece structure of the case, a closing device is obtained the security of which is considerably enhanced because the lock 8 is housed in the box 10 installed in the door. Indeed, the only access to the lock 8 is located in the lateral opening 33 which is closed by the headrest 7. The headrest is blocked in front of the tubular profile 19 on which the closure device is mounted. The lateral opening 33 is thus completely inaccessible, which removes any possibility of access to the lock mechanism housed in the housing 10. In in addition, said one-piece structure of the housing 10 offers the advantage of facilitating the mounting it in the door and thereby greatly reducing the time mounting. The size of the assembly formed by the housing and the headrest in is reduced.

Advantageously, the edge 32 surrounding the opening 33 and the edge of the headrest 7 have a beveled profile allowing a quick and secure fitting of one in the other.

The operation of the closure device according to the invention is described below, using Figure 3 and Figures 20a to 20c. The latch bolt 21 is actuated by one of the handles and the deadbolt 22 by the introduction of a safety key 1 in the profiled key entry 3 of one of the rotary cylinders of the safety lock 8. When mounting the closing device, the position initial of each bolt 21, 22 is selected according to the dimensions transverse of the support tube 19. The latch bolt 21 is adjusted in positioning it in the desired recoil position relative to the wheel 25. It just choose the position of the latch bolt 21 always depending on the tube support 19 and replace the wheel 25. In this regard, it is possible to reuse the closure device for support tubes having dimensions different cross-sections. You just have to reposition the latch bolt as described above by previously removing the wheel 25 in order to obtain rest position, the appropriate projection thereof relative to the surface of support tube edge.

After releasing the handle 2, the latch bolt 21 is brought back automatically in its projecting rest position under the effect of the spring balance spring 74 which is wrapped around the nut 18. In fact, the handle 2 is turned following the direction of the arrow indicated by the reference in Figure 3 to open the door. Then, the nut 18 and the wheel 25 integral with the latter are brought to also turn in the same direction, the rotational movement of the wheel being transmitted to the latch bolt 21, so that it is brought to perform an axial sliding of withdrawal following the arrow indicated by the reference F in Figure 1 and thus bring the latch bolt 21 in position withdrawal. The spring, in particular the coiled part 74 thereof, is thus found compressed. When the handle is released, the spring 71 relaxes, bringing thus the wheel 65 in its starting position in an opposite direction of rotation. The primer portion 70 located at the free end of the coiled portion 74 of the spring 71 serves as an application element for the wheel. The wheel 25 has at this height a interrupted profile forming a notch 69 around which the primer portion 70 of the spring coils.

The mechanism for setting the deadbolt 22 in motion is described below. The deadbolt 22 slides axially along the direction of rotation given to the safety key 1, in turn imparting a rotational movement along the arrow indicated by the reference H to the safety lock 8 in a known manner. Beforehand, the deadbolt 22 is adjusted according to the dimensions support tube 19 as is the case for the latch bolt 21. The deadbolt 22 is adjusted by selectively positioning one notches 76, 77, 78 of the deadbolt 22 with the possibility of adjusting it 22 according to the section of the support tube 19, as well as to reuse the same closure device with support tubes having dimensions different cross-sections. You just have to reposition the bolt differently standing 22 relative to the safety lock 8.

During its rotation, an element of the safety lock projecting radially, like a bit, comes into contact with the trailing edge 52 of the plate 50 serving as a latch, which until this moment is in the state of rest and is is still engaged by its protruding loop 53 in one of the notches 83 of the deadbolt, then raise it, the deadbolt 22 remaining, at this stage of the movement, still motionless. The uprising, against spring 54, of the plate 50 forming a locking member with respect to the dead bolt 22 causes the loop 53 thereof to gradually disengage from the notch 83 and thus releasing the deadbolt 22. Thus, by continuing the rotation of the key 1, the bit continues its rotational movement and thus brings the deadbolt 22, now released, to slide axially in the direction of the arrow indicated by the reference E. When the bit is completely out of the groove 76 of the bolt 22, one of the notches 83 is located opposite the protruding loop 53 of the wafer. Under the action of the loop portion 54 of the spring 71, which is compressed, the protruding loop 53 is brought back into the notch 83 which is located in face of it. By performing a sliding movement back to its initial rest position, the plate 50 thus locks the deadbolt 22 in the position in which it was brought by the rotation of the key, namely opening or closing, if necessary by double turn.

It follows from the above that the position of the notches 83 along the bolt frame 22 is determined by the position of the notch (s) 76, 77, 78 in this one. In addition, each notch 76, 77, 78 correspond advantageously at least two notches 83, one for locking the bolt 22 by the latch 55 in the open position and the other for locking the latch in closed position. For multi-turn locks, 83 additional notches, preferably one additional notch per notch 76, 77, 78. It goes without saying that, if necessary, certain notches could be duplicated in order to reduce the number compared to the number of notches. In addition, the width of the notches measured along the axis deadbolt 22 relative to the width of the bit is such that there is a clearance between the bit and each notch allowing movement of the bit in it as described above.

In order to avoid undesired warping or lateral displacement of the loop portion 54 of the spring 171, the guide eyelet 39 of the deadbolt 22 is provided with a projection 35 arranged so as to guide the branch free 46 of the loop portion 54 of the spring 171.

The movement of the deadbolt for different thicknesses of profiles tubular 19 is obtained by the displacement of the projecting element 4 in a number of holes provided in the latch bolt 21. The end bevel 72 thereof allows a more convenient operation thereof, in particular as for its withdrawal or its cooperation with the reception plate.

The closure device according to the invention comprises a usable lock especially for swinging metal doors and gates, with opening by a handle (Figure 4) or also by the cylinder only (Figure 21), i.e. without handle, as well as for wrought iron gates, for gates, especially in garden enclosures or sports grounds and even for palisades or industrial doors. In addition, the aforementioned closing devices have an adaptable lock for sectional tubular profiles square or rectangular flattened only for round section profiles, while being adjustable on profiles of different dimensions as illustrated in the figures 10 to 13. In addition, Figure 19 clearly illustrates how one can adapt easily the lock of the device for closing a square to round tubular profile and conversely, simply by incorporating an adapter plate 199 for the round section.

In the device illustrated in FIG. 21, it will be noted that in the aforementioned variant of the closing device without handle 299, the control of the bolts 21 and 22 is discriminated as follows: the first turn of the cylinder 106 by manual actuation retracts the deadbolt 22, while the second turn of the cylinder 106 by manual actuation retracts the latch bolt 21. The securing the two latch bolts and deadbolt 21, 22 provides a lock double-turn adjustable so no handle is needed to close the door.

Furthermore, the mounting of the device on the aforementioned tubular profiles is extremely easy and presents no risk of loss of solidity of the assembly since it suffices to punch two holes in the tubular profile 19 to apply the lock to it 19. A tool composed of a gauge of perforation and a stepped drill saves precious time in the preparation of tubular profiles for mounting. Holes 56, 58 in the profile tubular 19 are produced in a single operation using the aforementioned drill.

The closure device adapts to each tubing profile. Furthermore, being given that locks 91. 92 can be moved in a jiffy using added keys 97, we can reconcile different profiles and profile dimensions. In addition, as shown above, mounting is extremely easy and quick and can be done in less than a minute by punching or punching first two holes 56, 58 in the tubular profile 19 then putting the lock 10 on the door, by inserting each of the bolts 21 and 22 into the orifices 56 and 58 which have just been trained and finally fixing said lock 10 using the key added 97. On the housing is integrated a reinforcement 330 as illustrated on the figure 15 ensuring security for the cylinder of the lock so that it can practically no longer be demolished. Reinforcement 330 is advantageously poured into the housing so as to be integral with it. This provides a universal closure device adaptable to all standard base frame with closing mechanism. Through the app aforementioned reinforcements 330, preferably in one piece with the housing 10, obtains that the entire length of the cylinder 8 is housed in the housing. The fixing of the lock is done from the inside of the tubular profile by means of a lock 91, 92 which crosses the tubular profile of the door.

In the variant illustrated in FIG. 14, the adjustment of the illustrated latch bolts in detail in FIG. 14a and respectively of the deadbolt illustrated in detail in Figure 14b is set out below. By introducing a key in L, called BTR, not shown, in a central guide 201 of the latch bolt 210, it is possible adjust up to 10mm depending on the axial direction of the latch and even beyond. The adjustment of the deadbolt 220 operates in the same way. More particularly, in the latter case, first unscrewing the locking screw deadbolt using the aforementioned L key. Then we adjust the position of the bolt 220 by turning the end piece 221 thereof 22 to the right or to the left depending on whether you want to adjust the bolt further back or on the contrary more protruding. Finally, we screw the aforementioned bolt adjustment screw sleeping.

The adjustment variant illustrated in FIG. 14 provides continuous adjustment thanks to the internal threaded rod 214 which is provided. The regulating member 213 cooperates with it 214 by sliding thereon within the latch bolt inside a light 215 determining the stroke of the protruding element 216 intended to cooperate with the lever 66 of the wheel 25. The above details are illustrated in Figure 14a.

The setting of the deadbolt 220 is illustrated in FIG. 14b from which it appears that the deadbolt 220 consists of two parts 221 and 222. The end part 221 is movable to a desired fixed position and then actuated, by rotating, the aforementioned L key on a first cone 226 which acts on a second internal cone 224, which spreads over a certain distance 223 then the end free from the fixed part 222 of the bolt 220. Thus, the latch bolts 210 and deadbolt 220 according to the variant illustrated in FIG. 14 can now be adjusted to leave from the outside using an attached key.

A great advantage obtained by the aforementioned continuous adjustment consists in the fact that it is thus possible to adjust the adjustment of the bolts of the device without having to disassemble the lock, thus leaving it in the assembled state on the door itself. The stepless adjustment also allows you to slam the door without any Lock or handle manipulation is not required to close it.

Advantageously, the assembly is made of a material entirely stainless. Thus, thanks to the use of exclusively stainless material, such than aluminum, brass and / or stainless steel, the locking device as well obtained is resistant to wear by oxidation for a very long time.

In addition, the closure device described above is hookable allowing thus making it entirely effective to close any door, because its construction is very robust and its fixing very solid, which results from the fact no fixing bolt can be undone after closing the door as well that it emerges for example from FIGS. 4 and 21.

Figures 20a to 20i illustrate the mode of adjustment of the latch bolts 21 and dormant 22. More particularly, FIGS. 20a to 20c show how change from an initial setting position in a port A to another position adjustment of the insert 4 in a different final position C. It is note in this regard that, in the engaged position, the insert 4 adopts each times the same position relative to the lug 66.

Figures 20d to 20f illustrate how to reverse the position of the latch bolt 21 for mounting on the left or respectively on the right, so that the end free bevel 71 is in the appropriate position relative to the plate 2. Figures 20g to 20i illustrate the process of deadbolt adjustment 22.

Claims (21)

1. Closure device, in particular for a door, comprising

   a lock (8) provided with a half-turn bolt (24),

   a face plate (7) having at least one aperture and a support plate (35) fixed to the face plate,

   a nut (18) able to cooperate with at least one handle, a return means (71) intended to act on the half-turn bolt (21), which is arranged to cooperate with the nut (18), slidingly in the aperture in the face plate (7) between a retraction position and a projection position,

   characterised in that the said lock (8) consists of a safety lock provided with a cylinder, in that a control member (65) is arranged so as to be integral with the nut (18) so as to act on the half-turn bolt (21), in that the half-turn bolt (21) and the control member (65) are respectively provided with first means (4; 45; 216) and second means (66) arranged to cooperate together, the aforementioned first and second means consisting respectively of an adjustment means (4; 45; 216) able to move selectively between a predetermined number of positions which are aligned along the longitudinal axis of the half-turn bolt (21) and in one of which there can be detachably engaged an element projecting from the said first means (4; 45; 216) on the one hand and at least one lug (66) attached to the control member (65) on the other hand, the latter (65) being arranged to cooperate with the aforementioned projecting member (4) by means of the aforementioned return means (71) so as to move the bolt (21) between the aforementioned positions of retraction and rest in projection.
2. Device according to Claim 1, characterised in that the aforementioned control member (65) is formed by a ring comprising a cylindrical external profile (49) delimited by two practically parallel edges, the said ring being attached by one of the aforementioned sides to the nut (18) forming a hub so as to form an annular groove (68) in which the return means (74) is housed, and in that the aforementioned lug (66) is arranged radially on the external periphery of the aforementioned cylindrical profile (49).
3. Device according to Claim 1 or 2, characterised in that the adjustment means (4) is formed by a projecting element attached with respect to the lateral surface of the half-turn bolt (21).
4. Device according to the preceding claim, characterised in that the said lateral surface (99) of the half-turn bolt (21) is provided with a predetermined number of openings (5), in one of which the said element (4) attached so as to project can be detachably engaged.
5. Device according to Claim 1 or 2, characterised in that the aforementioned projecting element is formed by a lockable slide (45).

   5'. Device according to Claim 1 or 2, characterised in that the projecting element is formed by a slide (213) able to move continuously in the bolt (210) on a central rod (214) which can be actuated from the outside through an access passage (201) arranged coaxially with the aforementioned rod (214).
6. Device according to any one of the preceding claims, characterised in that there is provided an additional return means (71) cooperating directly with the half-turn bolt (21) so that the latter (21) can be caused to emerge and retract independently of the lug (66) and the door handle (2).
7. Device according to any one of the preceding claims, characterised in that there is provided a reception means (120) for the lock, in particular the half-turn bolt (21), to which it is specifically adapted, which (120) is designed so as to be arranged on an opposite upright (119) facing the upright (19) on which the lock (8) is mounted.
8. Device according to the preceding claim, characterised in that the aforementioned reception means (120) comprises a reception plate (121) in which there is provided at least one orifice (122, 123) for receiving a corresponding bolt (21) which is in alignment therewith, as well as a gripping plate (125) attached thereto and designed to be gripped by the user, like a handle.
9. Device according to the preceding claim, characterised in that the perforated reception plate (121) and the gripping plate (125) mutually form an angle (α), in particular between 35 and 55°, preferably approximately 45°.
10. Device according to one of Claims 8 or 9, characterised in that the gripping plate (125) is provided with an element forming a handle (126), adapted to it (125).
11. Device according to the preceding claim, characterised in that the handle element (126) is formed from a synthetic material, preferably applied by injection.
12. Device according to any one of Claims 7 to 11, characterised in that the aforementioned reception means (120) serves equally well as a reception plate for the introduction of the bolt (21, 22), as a means of consolidating the locking by the presence of notches in which the bolts (21, 22) can be locked and as a handle allowing the opening of the second leaf of a double rotating door.
13. Device according to any one of the preceding claims, characterised in that it comprises:

    a lock bolt (22) slidably arranged in the aperture in the face plate (7) between a retraction position and a projecting position, and

    a locking member (55), arranged to lock the bolt (22) in each of its positions and to be pushed into the retraction position,

    the lock bolt (22) having a lateral surface (103) practically parallel to the support plate (35),

    in that the lateral surface (103) of the lock bolt (22) is arranged to cooperate with the locking member (55), and
    in that guidance means are provided on the aforementioned support plate (35) so as to allow a lateral sliding of the locking member (55) with respect to the lock bolt and parallel to the lateral surface (103) thereof (22), between the said lateral surface (103) and the guidance means (51).
14. Closure device according to the preceding claim, characterised in that the lock bolt (22) has a substantially cylindrical profile with a shoulder (179) from which there extends the said lateral surface (103) in a substantially plane fashion and in that the locking member (55) consists of a plate (50) which is adaptable between the said lateral surface (103) of the lock bolt (22) and the guidance means (51) and which has a loop (53) projecting with respect to the plate (50), whilst being attached to the plate (50) at each of its ends, in that the lock bolt (22) has a predetermined number of slots (83) which are axially aligned at least partially in the aforementioned lateral surface (103) of the bolt (22), and in that another additional return means (39) is provided, the loop (53) being arranged to be engaged in one of the slots (83) in the bolt (22) under the action of the aforementioned other additional return means (39).
15. Device according to the preceding claim, characterised in that the loop (53) is arranged in a substantially central fashion on the plate in line with each slot (83).
16. Closure device according to one of Claims 7 or 8, characterised in that the bolt (22) has at least two notches (76, 77, 78), which are axially aligned and which extend transversely with respect to the axis of the bolt (22) opposite the drive catch and practically opposite the slots (83), so as to allow engagement of the drive catch in one of the notches (76, 77, 78).
17. Closure device according to one of Claims 14 to 16, characterised in that the first and second return means (39; 74) are attached to each other so as to form a single return means, the first elastic return means consisting of a spring in the form of a hairpin with two legs (46, 47) and the second return means (74) consisting of a spiral spring wound concentrically around the nut (18) in the aforementioned annular groove (68), one of the legs (47) of the second return means (39) being attached to one of the ends of the first return means (74) and the free end area of the other leg (46) acting on the aforementioned loop (53).
18. Closure device according to any one of Claims 6 to 10, characterised in that the face plate (7) is mounted, by means of at least one fixing sleeve (91, 92), on a support tube (19), in particular for a door, which has a given profile and has in it at least one pair of mutually opposed openings (56, 57; 58, 59), each pair being in alignment with the respective aperture (36, 38) provided in the face plate (7) so as to allow the passage of each bolt (21, 22) through the support tube (19), each fixing sleeve (91; 92) being clamped in each aforementioned aperture (36; 38) in the face plate (7), passing through the opposed pair or pairs of openings (56, 57; 58, 59) of the support tube (19).
19. Closure device according to the preceding claim, characterised in that each sleeve (91; 92) has at its free end at least one first engagement means (93) intended to cooperate with an external tightening key (97) provided with at least one second corresponding engagement means (98).
20. Closure device according to any one of the preceding claims, characterised in that it comprises an integral casing (10) having the form of a flattened case provided on one of the lateral faces (16) with an elongate opening (33) arranged to receive the face plate (7).
21. Closure device according to any one of the preceding claims, characterised in that the half-turn bolt has a profiled leading end in a bevel, preferably between 30° and 60°, preferably again between 40° and 50°, the bevel being oriented laterally towards this side which favours an easier retraction of the half-turn bolt.

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