EP0935039A1 - Motorised multiple bolt lock - Google Patents

Abstract

The bolts are linked (6) to the lock mechanism (16). The remotely controlled motor (10) drives a screw with a captive nut (14) that moves up and down within the lock. The lock mechanism connects to the nut by two spring loaded jaws (20) with studs that locate in recesses in the nut. When the lock is activated manually by rotating a handle or key, geared cogs move a plate (34) to separate the jaws from the nut. Further rotation then moves the locking mechanism.

Description

The present invention relates to locks with multiple bolts and relates more particularly to motorized locks of this type.

We know motorized locks with multiple bolts which do not have a through key actuating cylinder, so that their key actuation cannot be assured that on one side of the lock.

In addition, the emergency opening by hand of known motorized locks is made difficult by the need to drive by a manual organ, the motor rotor electric normal drive of the lock, which when is not powered, offers resistance to rotation not negligible.

Among the known motorized multiple bolt locks, some are not reversible.

In addition, the mechanism provided between the cylinder of the lock and the electric drive motor thereof is never uncoupled.

The engine power of such a lock is limited and requires the use of a reducer.

The drive of the lock mechanism is very hard.

The invention aims to remedy the drawbacks of known multiple motorized bolt locks, creating a lock of this type which is easy to use, both when powered by an electric motor, and when activated by a key or button mechanism.

It therefore relates to a multiple bolt lock motorized of the aforementioned type, comprising a plate carrying a mechanism for connecting rods with bolts, means for actuating the mechanism with an electric motor drive, manual actuation means of the drive mechanism, characterized in that it comprises furthermore means for coupling actuating means electric motor with the drive mechanism and simultaneous uncoupling of said actuating means manual with respect to said drive mechanism when using motor actuation means electric and means of coupling actuating means manual with drive and uncoupling mechanism simultaneous of said motor actuation means electric with respect to said drive mechanism during the use of manual actuation means.

• la Fig.1 est une vue schématique d'une serrure motorisée à points multiples suivant l'invention;
• la Fig.2 est une vue partielle de face axiale de la serrure de la figure 1 montrant les moyens d'actionnement à moteur électrique du mécanisme d'entraínement de la serrure;
• la Fig.3 est une vue schématique partielle de face prolongeant la figure 2 et montrant des moyens d'actionnement manuel de la serrure suivant l'invention;
• la Fig.4 est une vue partielle en coupe de côté à plus grande échelle montrant les moyens d'actionnement à moteur électrique;
• la Fig.5 est une vue partielle en coupe de côté montrant les moyens d'accouplement des moyens d'actionnement manuel;
• la Fig.6 est une vue schématique des moyens d'actionnement à moteur électrique accouplés aux moyens d'entraínement;
• la Fig.7 est une vue schématique montrant les moyens d'actionnement à moteur électrique désaccouplés par rapport aux moyens d'entraínement qui sont couplés aux moyens d'actionnement à clé; et
• la Fig.8 est une vue schématique montrant les moyens d'actionnement à moteur électrique désaccouplés par rapport aux moyens d'entraínement qui sont couplés aux moyens d'actionnement à bouton de manoeuvre.

The invention will be better understood with the aid of the description which follows, given solely by way of example and made with reference to the appended drawings, in which:

• Fig.1 is a schematic view of a multi-point motorized lock according to the invention;
• Fig.2 is a partial axial front view of the lock of Figure 1 showing the actuating means with electric motor of the drive mechanism of the lock;
• Fig.3 is a partial schematic front view extending Figure 2 and showing manual actuation means of the lock according to the invention;
• Fig.4 is a partial side sectional view on a larger scale showing the electric motor actuating means;
• Fig.5 is a partial side sectional view showing the coupling means of the manual actuation means;
• Fig.6 is a schematic view of the actuating means with an electric motor coupled to the drive means;
• Fig.7 is a schematic view showing the actuating means with an electric motor uncoupled from the drive means which are coupled to the key actuating means; and
• Fig.8 is a schematic view showing the actuating means with an electric motor uncoupled from the drive means which are coupled to the actuating means with an operating button.

In Figure 1, there is shown schematically a motorized multiple bolt lock.

The lock designated by the general reference 1 is mounted on a door leaf B and cooperates with an assembly of strikes 2 fixed to the corresponding frame.

Lock 1, of the surface-mounted type, has mounted on a plate 4, a drive mechanism 5 of rods 6 for connection with bolts 7 housed in housings 8.

The drive mechanism 5 which will be described by the suite can be operated either by an electric motor under the command of a code entered on a keyboard or else a magnetic card, or another system, either by manual means such as a key cylinder or a rotary operating button.

Figures 2 and 3 show on a larger scale a partial view of manual and electric motor means of the lock according to the invention.

As shown in Figure 2, the following lock the invention comprises an electric drive motor 10 which advantageously consists of a geared motor, of which the output shaft 11 is connected by a coupling sleeve 12 to a worm 13 on which a nut is mounted 14 for driving rods 6 by means disengageable coupling.

The rods 6 are interconnected by rods flat link 16 arranged on either side of the engine electric drive 10 and the screw-nut assembly 13.14. As shown in Figure 4, the nut 14 is provided a tail 17 guided in a longitudinal slot 18 formed in a support plate 19 of the motor 10.

In enlarged regions, the rods 16 carry jaws 20 mounted oscillating on respective axes 21.

The jaws 20 are biased towards the nut 14 by pin springs 22 carried by the axes 21 of articulation jaws.

The nut 14 has inclined edges 14a of spacing jaws 20 in a manner to be described by after.

A free end of each spring 22 is applied against a stop 23 carried by the corresponding rod 16, while its other free end is applied against the active end of the jaw 20.

Each jaw 20 carries a finger 24 which is in taken with a corresponding notch 26 formed in the outer surface of nut 14 for coupling between the nut and the rods 16 connecting the rods 6 between they.

Each jaw 20 further comprises a roller 28 intended to cooperate with guide ramps such as the ramp 30 of coupling and uncoupling elements, such as the coupling element 32 of the nut 14 driven by the motor 10 relative to the rods 6 connected between them by the rods 16.

As seen in Figures 2 and 3, the element coupling and uncoupling 32 is a plate in which are cut two associated guide ramps 30 each with a jaw 20 and has at its opposite end two lateral racks 34 on the guide rails cooperating with a manual actuation means of the lock.

This manual actuation means comprises a cylinder 36, for example a European cylinder, the actuating member of which is a bit driving a pinion 38 which meshes via satellite gears 39 with a toothed wheel 40 mounted for rotation on an axis 41 carried by the plate 4.

The toothed wheel 40 is integral with one more pinion small diameter 42 which in turn is engaged through a satellite pinion 43 with one of the racks side 34 of the coupling and uncoupling plate of the nut 14 relative to the set of rods 6.16.

The satellite pinion 43 interposed between the pinion of smallest diameter 42 and the rack on the left on the Figure 3, determines the direction of closing movement of the rods 6. The right rack is then not used. The set of pinions 38,39,40,41,42,43 forms a train of gears actuated by the cylinder 36. This same satellite pinion 43 can also be interposed between the pinion 40 and the rack 34 on the right in which case, the direction of rotation of cylinder 36 is reversed. This makes it easy to use the lock according to the invention as a left lock or right.

Figure 4 is a partial sectional view to more large scale corresponding to Figure 2.

We see in this figure that above the first coupling and uncoupling plate 32 actuated by the cylinder 36 is mounted movable in translation, one second 45 coupling and uncoupling plate the nut 14 relative to the set of rods 6.16.

This second plate 45 has two racks lateral 46 parallel to the racks 34 of the plate 32 and having the same spacing as these.

As shown in Figure 5, one of the racks 46 meshes with a satellite pinion 47 mounted mad on a axis 48 which also carries the satellite pinion 43 associated with one of the racks 34 of the first plate 32.

The satellite pinion 47 can like the satellite pinion 43 be arranged in engagement with the other lateral rack 46 in order to use the lock as a left lock or right.

If the lock is not reversible, the plates 34 and 45 may have only one rack.

The satellite pinion 47 in turn meshes with a pinion 49 coaxial with pinion 42 and idly mounted on axis 41.

The pinion 49 is fixed in rotation on a button operation 50.

The second coupling and uncoupling plate 45, like the first plate 32, has two ramps guide 52 for the corresponding rollers 28 of the jaws 20.

Guide rails 30 and 52 appear on the Figure 4 in which we see that the guide rails 30 of the first plate 32 actuated by the cylinder 36 are of the same length as that of the guide ramps 52 of the second plate 45 actuated by the operating button 50.

Referring again to Figure 2, we see that each guide ramp 30 has an intermediate portion 30a axial holding roller 28 of jaw 20 corresponding so that the finger 24 of the jaw is engaged with the notch 26 of the nut.

This intermediate portion corresponds to a race dead from plate 32.

On either side of the intermediate portion 30a inclined end portions 30b, 30c are provided intended to ensure the spacing of the rollers 28 and therefore jaws that carry them, against action return springs 22 and thus uncoupling fingers 24 relative to the nut 14 driven by the engine electric 10.

At their ends opposite to the axial portion 30a, the inclined portions 30b, 30c end with stops 30d, 30th drive in translation of the rollers 28 and by consequent jaws 20 and intermediate rods 16 connected to the rods 6.

Similarly, the guide ramps 52 of the second coupling and uncoupling plate 45 comprise each an axial portion 52a and end portions inclined 52b, 52c terminated by stops 52d, 52e, having the same functions as those of the portions 30a, 30b, 30c guide rails 30 and stops 30d, 30e.

In FIG. 4, it can also be seen that the lock according to the invention comprises contactors 55, 56, 57 for detection the state of the lock, these contactors cooperating with a limit switch cam 58 of the rods 6 carried by one of the connecting rods 16.

Contactors 55,56,57 detect respectively a position of the rods corresponding to the retracted bolts, a position corresponding to one or more U-bolts extended and a position corresponding to the extended bolts.

It can also be seen in FIG. 2 that provision is made for nut 14 limit switch contactors 60,61 which cooperate with limit switch contact stops 62 the nut provided with springs 63 for absorbing the effects due at the end of engine rotation and carried by a crew 64 secured to the nut 14.

As shown in Figures 2 and 3, axes 66 are also provided for connecting the rods 6 with the intermediate rods 16.

In addition, as shown in Figure 6, in the intermediate rods 16 are provided with axial slots 68 in which guide pillars are engaged 70 fixed in the support plate 19 of the motor 10.

The operation of the lock according to the invention will now be described more particularly with reference in Figures 6 to 8.

Figure 6 partially shows the following lock the invention in a state in which the electric motor 10 is engaged with the rods 6.

We see in this figure that the fingers 24 of the jaws 20 integral with the intermediate rods 6 are engaged in the notches 26 of the nut 14.

The electric motor 10 when supplied with power control of a signal resulting from the composition of a numeric code on a keyboard (not shown) or the introduction of a magnetic card in a reader card, drives the worm 13 in rotation and causes thus the translational movement of the nut 14 and consequently intermediate rods 16 connected to the rods 6 in order to place said rods in different portions corresponding to the state of the lock detected by the corresponding state contactors 55, 56, 57 of retracted bolts, of bolts U-turn out and bolts out.

The reversal of the direction of movement of the nut 14 is associated with the reversal of the direction of rotation of the motor 10.

The maximum stroke of the nut 14 is determined by the contactors 60,61 and the end of contact stops stroke 62 each comprising a spring 63 for absorbing residual movements due to motor rotation after -interruption of his diet.

Referring to Figure 7, we see that to activate the lock by hand, using the key cylinder 36, we provoke by turning the cylinder 36 using a key (not shown), the translational movement of the plate coupling, uncoupling 32 including the rack lateral 34 is engaged with the gear train formed sprockets 38.39; 40.42.43.

The ramps 30 of the plate 32 are then moved relative to the jaws 20 carried by the rods 16 of link rods 6, with the following successive effects.

As long as the rollers 28 of the jaws 20 are in contact with the axial portions 30a of the guide ramps 30, the fingers 24 of said jaws remain in engagement with the corresponding notches 26 of the nut 14 and the rods 16 interconnected by intermediate rods 16 remain immobile.

When the rollers 28 come into contact with one either of the inclined portions 30b, 30c of the ramp guide, they are separated from each other and entrain the opening of the jaws 20 and the exit of their fingers 24 out of the notches 26 of the nut 14.

At the end of their run along one or the other portions 30a, 30b, the rollers are applied against one end stops 30d, 30e of the guide ramp, this which causes the translation rods 6 in a direction corresponding to the direction of movement of the plate coupling, uncoupling 32.

Depending on the direction of movement of the plate 32, the rods are driven by the stop 30d or 30e, at the end a dead stroke of the plate 32 equal to the length of the axial portion 30a increased by the length of one of the portions inclined 30b, 30c of the guide ramp 30.

As shown in figure 8, to activate the rods by hand using the operating button 50, we causes by turning this button, the drive in translation of the coupling plate, uncoupling 45 by action on one of its lateral racks 46 by means of the gear train formed by the pinions 47 and 49.

The drive of the rods 6 by the second plate coupling and uncoupling 45 is ensured by the same as their training by the first plate 30.

The various portions 52a to 52e of the guide ramps 52 of this plate cooperate with the rollers 28 of the jaws 20 in the same way as the corresponding portions 30a to 30e of the guide ramps 30 of the first plate.

If, after manual actuation, you wish again operate the lock using the electric motor 10, we cause its power supply and training the worm 13 which moves the nut 14 in translation.

During its displacement, the nut 14 will seek the fingers 24 of jaws 20 at their corresponding location at the moment of the lock.

The rollers 28 of the jaws 20 being applied under the action of the pin springs 22 against the portions axial 30a, 52a of the guide rails 30, 52 of the plates 32, 45, the nut comes into contact with the fingers 24 of the jaws and causes their separation by action of its edges inclined 14a, then their elastic engagement in the notches 26.

Thus the electric motor 10 is again engaged with the rods 6 of the lock and uncoupled relative to to manual actuation means.

So we see that thanks to the arrangement that comes to be described, the lock can be operated as desired using an electric motor or manually, actuation using the electric motor causing uncoupling manual actuation means while actuation using manual means causes uncoupling actuating means with electric motor.

The lock thus formed therefore requires energy reduced for his training.

In addition, its manual operation is facilitated by the absence of resistance to rotation of the electric motor.

The lock which has just been described can be used to drive deadbolts or U-turn types the most diverse.

However, it is particularly well suited for actuating bolts mounted in reversible housings can be turned 180 °, of the type described in the patent application entitled "Reversible lock with bolts multiples "deposited on January 12, 1998 under the number 98 00 208 by the Applicant.

Claims (11)

Motorized multiple bolt lock including a plate (4) carrying a drive mechanism (16,20) connecting rods (6) with bolts (7), means electric motor actuation (10,13,14) of the mechanism drive, manual actuation means (32,34,36, 38,39,40,42,43,45,46,47,49,50) of the drive mechanism, characterized in that it further comprises means (32,30,45,52) for coupling the motor actuating means electric (10,13,14) with the drive mechanism (16,20) and simultaneous uncoupling of said actuating means manual (32,34,36,38,39,40,42,43, 45,46,47,49,50) with respect to said drive mechanism (16,20) during the use of actuating means with an electric motor (10,13,14) and coupling means of the actuation means manual with drive and uncoupling mechanism simultaneous of said motor actuation means electric with respect to said drive mechanism during the use of manual actuation means. Lock according to claim 1, characterized in that the drive mechanism of the rods (6) of connection with the bolts (7) comprises intermediate rods (16) connecting the rods (6) to each other and to organs (20) connecting said intermediate rods (16) with the actuating means with electric motor (10,13,14) or with the manual actuation means (32,34,36,38,39,40,42,43, 45,46,47,49,50) depending on the position of said means coupling and uncoupling (32,30,45,52). Lock according to claim 2, characterized in that the electric motor actuating means comprise a worm (13) rotated by a electric motor (10) and cooperating with a driven nut (14) in translation by the worm, said nut (14) having notches (26) which cooperate with fingers (24) of oscillating jaws (20) forming said members connecting, carried by said intermediate rods (16) and provided with elastic biasing members (22) from said jaws to said nut (14) and in that said jaws (20) each comprise a roller (28) cooperating with a guide ramp (30,52) formed in at least a plate (32,45) movable in translation, of coupling, uncoupling of the nut (14) from the actuating means electric motor relative to the drive mechanism (16,20), said coupling plate, uncoupling (32,45) being connected to the manual actuation means and comprising said uncoupling and coupling means manual actuation means (32,34,36,38,39, 40.42.43.45.46.47.49.50) relative to said drive mechanism. Lock according to claim 3, characterized in that the guide ramp (30,52) formed in said au minus a coupling plate, uncoupling (32,45) for guiding the roller (28) of each jaw (20) comprises an axial intermediate portion (30a, 52a) for holding fingers (24) of the jaws (20) in engagement with the corresponding notches (26) of the nut on both sides of this axial portion, inclined end portions (30b, 30c, 52b, 52c), jaw spacing (20) and of release of the fingers (24) from these relative to the nut (14), said inclined end portions (30b, 30c, 52b, 52c), being terminated by stops (30d, 30e, 52d, 52e) for translational drive of the rollers (28) of the jaws (20) and intermediate rods (16) connected to the rods (6), said stops forming the coupling means manual actuation means relative to the mechanism for driving rods at the end of the distance stroke rollers (28) and jaws (20) on the portions end (30b, 30c, 52b, 52c) and guide rails (30.52). Lock according to one of claims 3 to 4, characterized in that said at least one coupling plate, uncoupling (32,45) comprises at least one rack (34,46) cooperating with at least one gear train (38,39,40,42,43,47,49) actuated by at least one organ manual actuation (36.50). Lock according to one of claims 1 to 5, characterized in that it includes actuation means manual by cylinder (36) with key and actuation means manual by operating button (50), a coupling plate, uncoupling (32,45) being associated respectively to the cylinder (36) and to the operating button (50) by through the gear train (38,39,40,42,43,47,49) corresponding. Lock according to one of claims 3 to 6, characterized in that the nut (14) has inclined edges (14a) for spacing the jaws (20) in order to ensure the engagement of the fingers of these jaws in the notches (26) of the nut (14) during the movement of said nut by the motor (10) for coupling the actuating means electric motor with the drive mechanism (16,20), following a decoupling caused by manual actuation of said lock. Lock according to one of claims 3 to 7, characterized in that it comprises contacts (60,61) of end of travel of the nut (14) which cooperate with stops limit switch (62,63) carried by an integral crew (64) of said nut. Lock according to claim 8, characterized in that the end stops with springs (63) absorption of the displacements of the nut due to the end of motor rotation (10) after the sound is cut off supply by said limit switch contacts (60,61). Lock according to one of claims 2 to 9, characterized in that it includes contacts (55,56,57) for detecting the state of the lock, said contacts cooperating with a cam (58) carried by one of the intermediate rods (16) connecting rods (6) connecting with the bolts (7). Lock according to any one of the claims 5 to 10, characterized in that each coupling plate, uncoupling (32,45) has two racks (34.36) and each gear train (38.39.40.402.43.47.49) has a pinion (43,47) meshing with one of the racks lateral (34,46) and thus determining the direction of rotation of the corresponding manual actuating member (36.50) depending on the intended use of the lock in left or right lock.

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