EP0881345A1 - Disengageable driver for a mortise lock cylinder - Google Patents

Abstract

Each driving part (18a,18b) of the lock comprises, opposite the sliding pinion (17a,17b) with which it engages, a radial collar (34) sliding in a bore of the key bit (7). The bore is divided into two bearing surfaces (15a) by a central groove (16) of larger diameter than the diametral dimension of the collars and of width (L) greater than the width (E) of the two collars. A separating spring (37) is interposed between the two collars to return them into the clutch position in the bearing surfaces. A second spring (32) returns them into a position in which each of them is free to rotate relative to the corresponding driving part.

Description

The invention relates to lock cylinders to be larded, by example of European type, composed of two half cylinders, and concerns more particularly a disengageable trainer.

In this type of cylinder and as shown in Figure 1 attached, each half cylinder, generally designated by 2, is composed of a body 3 forming a stator, a rotor 4 with a slot 5 for the key and latches, not shown, arranged in housings of the stator and rotor and each composed of a probe, with or without piston intermediate, a counter piston and a spring pushing the counter piston, the possible piston and the probe in the direction of the slot in the rotor.

The two half cylinders are spaced from each other by a interval containing the body 6 of the bit 7. This body can be linked by rotation to an internal trainer, actuated by introduction of the correct key in one of the rotors of the two half cylinders.

Some coaches are designed to allow the recovery of hand, i.e. allow the actuation by a rotor key of one of the half cylinders, even though the rotor of the other half cylinder has already been actuated and is in a different angular position.

• d'un baladeur calé en rotation et monté coulissant longitudinalement dans le nez du rotor,
• et d'un organe d'entraínement, lié en rotation au paneton et monté coulissant longitudinalement par rapport à ce dernier, cet organe comportant des moyens, tels que mortaise ou tenon, aptes à s'engrener avec des moyens complémentaires du baladeur pour assurer une liaison en rotation temporaire.

The invention relates more particularly to composite coaches, for each half cylinder:

• a sliding wedged sliding sliding longitudinal player in the rotor nose,
• and a drive member, rotatably connected to the blade and slidably mounted longitudinally relative to the latter, this member comprising means, such as mortise or tenon, able to mesh with complementary means of the player to ensure a temporary rotation link.

The object of the invention is to provide a coach ensuring the recovery of hand and also allowing to modify, if necessary, the position of the bit relative to the cylinder rotor or to make prisoner, at least one of the keys, in one of the preferred positions of the rotor, respectively, of opening or closing.

To this end, in the disengageable trainer according to the invention, each drive member comprises, opposite the player with which it cooperates, a polygonal radial collar mounted sliding in a bore of the paneton, this bore having a complementary profile and being divided into two carried by a central groove of larger diameter than the diametrical dimension of the collars and of width greater than the width of these two collars, while a spacer spring is interposed between the two collars, to remind them of the clutch position in the bearings polygonal, and that another spacer spring is interposed between the players to remind them in a position in which all of them is free to rotate relative to the corresponding drive member.

With this device, engaging the right key in one of rotors causes longitudinal movement of the player and, if the organ of corresponding drive is well positioned, the link in rotation with this organ. The rotation of the key allows the rotation of the paneton by cooperation of the polygonal profile of the collar of this organ with the complementary profile of the bore of the paneton.

By cons, if the drive member is not in the position engagement with the player, for example following the actuation of the rotor of the other half cylinder, the longitudinal displacement of the player transmits to the drive member whose collar escapes from the bore polygonal to come into the gorge. The rotation of the key brings gradually the means of engagement of the walkman in coincidence with the complementary means of the drive unit, to ensure what is known as "taking over". As soon as this coincidence is perfect, the return spring of the drive member promotes meshing, then brings back the collar in engagement with the bore polygonal of the paneton, thus allowing the rotational drive of this one.

In one embodiment, the paneton comprises means eclipsable ensuring the rotation setting of the collars of the organs in the throat of the body but tolerating their movement in translation in this gorge.

Thus, by bringing these wedging means into the eclipsed position, in which they can no longer wedge the collars in rotation, it is possible to rotate the blade and the drive members relative to players, so that, when engaging one or both keys, these Walkman, having means for engaging offset keys angularly in relation to those of the drive members, repel these organs by bringing their polygonal collars into the throat.

At this stage, the rotation of the paneton, with a collar in the throat, shifts one organ relative to the other, for example to make the key, that is to say preventing it from leaving after having dragged the paneton in rotation in one direction, while the rotation of the bit with the two collars in the groove, allows to modify the key insertion position relative to the bit, so the position of the bit relative to one or the other of the open and closed positions of the half-cylinders.

This arrangement allows, for example, to give the paneton a position at 5 or 7 o'clock, to reinforce the resistance of the lock to a longitudinal impact, ensuring an anti-burglary function, or 9 a.m. or 3 p.m., when this paneton is used as a thresher electrical contactor.

After adjustment, the clamping means of the collars are brought back in stall position.

Figure 1 est une vue en perspective avec coupe longitudinale partielle d'un cylindre de serrure équipé du dispositif,

Figure 2 est une vue partielle en coupe transversale de ce dispositif,

Figure 3 est une vue en perspective montrant les éléments essentiels du dispositif,

Figure 4 est une vue en perspective montrant une forme d'exécution du rotor de chaque demi cylindre,

Figure 5 est une vue en coupe suivant V-V de figure 2 montrant les moyens de liaison entre le paneton et la douille centrale,

Figure 6 est une vue partielle en perspective du dispositif après introduction d'une clé et engrènement des deux éléments d'entraínement,

Figures 7 à 10 sont des vues partielles en perspective du mécanisme d'entraínement, en cas de reprise de main, c'est lors de l'engagement d'une clé alors que l'autre demi cylindre a déjà pivoté, respectivement, au début et en fin d'engagement de la clé dans le demi cylindre de gauche, après rotation partielle de cette clé et après embrayage de l'organe d'entraínement,

Figures 11 à 13 sont des vues partielles en coupe longitudinale illustrant différentes phases de la modification de l'indexation du paneton par rapport aux deux demi cylindres,

Figures 14 à 17 sont des vues schématiques en coupe transversale illustrant les positions relatives des éléments de l'entraíneur participant à l'indexation du paneton dans différentes phases du réglage.

Other characteristics and advantages will emerge from the description which follows with reference to the appended schematic drawing representing an embodiment of the device according to the invention.

FIG. 1 is a perspective view with partial longitudinal section of a lock cylinder fitted with the device,

FIG. 2 is a partial view in cross section of this device,

FIG. 3 is a perspective view showing the essential elements of the device,

FIG. 4 is a perspective view showing an embodiment of the rotor of each half cylinder,

FIG. 5 is a sectional view along VV of FIG. 2 showing the means of connection between the paneton and the central sleeve,

Figure 6 is a partial perspective view of the device after insertion of a key and meshing of the two drive elements,

Figures 7 to 10 are partial perspective views of the drive mechanism, in case of recovery of hand, it is during the engagement of a key while the other half cylinder has already rotated, respectively, at the start and at the end of engagement of the key in the left half-cylinder, after partial rotation of this key and after engagement of the drive member,

FIGS. 11 to 13 are partial views in longitudinal section illustrating different phases of the modification of the indexing of the bit relative to the two half cylinders,

Figures 14 to 17 are schematic cross-sectional views illustrating the relative positions of the elements of the coach participating in the indexing of the bit in different phases of the adjustment.

It is specified that, in Figures 6 to 13, the springs spacers are not shown to lighten the figures and do better perceive relative movements, but it is obvious that the device shown includes such springs, as in Figure 2.

In the embodiment shown, the bit 7 is of the type of that described in the co-copending French patent application n ° 97 05439 for "device for strengthening the connection of elements of a lock cylinder ". As shown in FIG. 5, its body 6 is composed of a half shell 8 which is linked, with another half shell 9, to a central socket 10, this connection being made by tenons retentive 12, protruding from the sleeve 10 and cooperating with grooves 11 formed in the two half shells 8 and 9. The positive bond of the paneton 7 with the socket 10 is provided by a pusher 13 which will be described in detail later. The two half shells 8 and 9 are provided with ribs lateral semi-circular 19 which, penetrating into grooves 21 formed at the ends of the rotors 4, contribute to the strengthening of the cylinder (figure 11).

It is obvious that the invention is not limited to this type application, but on the contrary that it extends to all cylinders comprising a central plate 7, the body 6 of which is integral with a socket or of a central rib having the same internal structure as the sleeve 10, that is to say comprising, as shown in FIGS. 3 and 5, an axial bore of polygonal section divided into two spans 15a, 15b, by a central groove 16.

This structure is part of the disengageable coach according to the invention which also includes, for each half cylinder, respectively, a portable player 17a or 17b, and a drive member 18a or 18b.

As shown in Figure 4, each player is composed of a cylindrical body 20 from which a radial stud 22 projects. Its end face, turned on the side of the drive member is flat, while its other end face facing a rotor 4 comprises a diametrical pin 23 of which the ends cooperate, as shown in figure 3, with millings 24 provided at the inner end of the rotor 4 with a cylindrical housing 25. The cooperation of the stud 23 with the milling 24 ensures the connection in rotation of the player 17a or 17b and of the rotor 4, while tolerating the translation of this player relative to the rotor.

Each player is axially crossed by a stepped bore composed of a part of small diameter 26 and a part of larger diameter 27. Figure 2 shows that the small diameter part is mounted sliding on the cylindrical body 28 of an enlarged head tube 29, the head is disposed in the bore 27 of larger diameter. This tube is linked, by fitting an axial pin 30, to a similar tube arranged reverse in the other player, to constitute a connection means of the two players. A spring 32 is interposed between the two players to constantly recall these pressing on the heads 29 of the tubes.

Each drive member 18a or 18b is composed of a crown 33 and a collar 34. Crown 33 is turned towards the side of the player, so that its cylindrical bore 35 provides guidance in translation and rotation of the body 20 of this player. This crown includes, locally, a mortise 35, suitable for receiving the pin 22 of the player, ensuring what is defined throughout the description as an "engagement". By its cylindrical peripheral surface, the crown 33 is mounted free in translation and in rotation in bore 25 of the rotor nose 4.

The collar 34 has a polygonal shape which is complementary to the range 15a, or 15b of the socket 10, that is to say that it can engage in this range by being able to slide there without being able to turn. Figure 2 shows that the thickness E of each collar 34 is substantially equal to the thickness of a span 15a, 15b, and that the groove 16, separating the two spans, has a width L which is greater than twice the thickness E of a collar.

Figure 2 also shows that a spring 37 is interposed between the two collars 18a, 18b to spread them apart and call them back against two diametrical abutment faces which, in the embodiment shown, are formed by the end faces of the two rotors 4.

The disengageable drive also includes wedging means in rotation of the collars 34 in the groove 16.

In the embodiment shown in Figures 1 and 5, these means are constituted by the internal end 13a of the pusher 13 which, emerging from a stepped bore 42, housed radially in the sleeve 10, opens into the throat 16. The pusher is itself shouldered and its shoulder is pressed against that of bore 42 by a spring 43, interposed between its head and a threaded plug 44 screwed into a threaded bore emerging from the paneton. This last threaded bore is extended in the paneton 7 by a smooth bore 45 in which the guide can slide freely pusher 13. In the embodiment shown, it is pusher 13 which, entering the sleeve 10 ensures alignment of the bore 45 of the paneton with the shoulder of this socket. In a variant, no shown and using a monolithic paneton body, the radial bore formed in the blade is internally shouldered and opens into the groove 16. Such a bore can receive the pusher spring which has just been described or a screw with a smooth shouldered rod coming in bearing on the shoulder of the body and having a projecting end in the throat.

In all these embodiments, the axis of the bore or bores receiving the pusher 13 is radial and perpendicular to one of the faces of the polygonal bore 15a, 15b.

Finally, the support of the shoulder of the pusher 13 on that of the housing 42 of the socket 10 or the shouldered housing of the solid body of the paneton, limits the projection it forms in the groove 16, so that it does not not oppose the longitudinal displacements of the collars 34 in the groove 16, but opposes their rotation, when they are in this groove in coming in the vicinity, and even in sliding contact, with one of their polygonal faces.

These rotation setting means are eclipsable, that is to say that they can be moved back radially to release the collars 34. At this end, when the pusher is secured to a threaded part, it is unscrewed, while when it is independent of its threaded plug and recalled by a spring, it is moved against its spring 43 by means of a tool elongated, such as a screwdriver, engaged in a bore 46 passing through the paneton 7 in its thickness (FIG. 1), and intersecting the bore 45 of this paneton. To facilitate its movement by the tool, the pusher comprises, in the intersection zone of bores 45 and 46, a groove 47 separating his body from his head 13b.

At rest, the coach is in the position shown in the figure 2. When a good key 40 (Figure 6) is inserted into the slot 5 of the rotor 4 of one of the half cylinders, the end of the key comes into contact with the corresponding player, for example that 17b. If the organ 18b is still in the position given to it during of the last actuation by the same key, the tenon 22 coincides with the mortise 35 and can therefore freely mesh with this mortise. The rotation of the key causes, thanks to this meshing, the drive of the member 18b and, consequently, the drive of the socket 10 and the paneton 7. When the key is removed, the spring 32 causes the release of the post from the mortise 35, thereby releasing the paneton, and this, after rotation in one direction for a free key lock, or, after returning to the starting position for a half cylinder with key prisoner.

Figure 7 shows the position of the coach elements when the right rotor has been activated and the key has been removed leaving the rotor in a different position than the half rotor left cylinder. Mortise 35 of the half drive elements cylinder on the left is therefore no longer aligned with the tenon 22, as shown in this figure 7. Under these conditions, when the key 40 is at again introduced into the left half cylinder, and that it displaces the rocker 17b, the tenon 22 does not enter the mortise and forms a sort of wedge which pushes in front of it the drive member 18b. It As a result, as shown in FIG. 8, the collar 34 of this member 18b is disengages from the corresponding polygon bearing 15b and comes into the groove 16, thereby ensuring what is called throughout the description, "the when the key is rotated, this movement is transmitted by the rotor 4 to the player 17b which can pivot relative to the drive member 18b, without driving it in rotation, by sliding faces in contact. As shown in Figure 9, as soon as the pin 22 coincides with the mortise 35, the return spring 37, urging the collar 34, ensures the engagement and brings back the collar in engagement with the bearing 15b, in thus ensuring the clutch of the rotor 4 with the sleeve 10, therefore with the paneton 7.

For certain applications in which recovery of control is not desired, this function can be very easily canceled by interposing a ring between the two collars 35 of the drive members 18a, 18b.

From the lock in the open position, as shown in FIGS. 11 and 13, the first adjustment phase consists in manually rotating the paneton by a value a , for example in the direction of the arrow 48, and by 45 ° between Figures 14 and 15, so that the mortises 35 of the drive members 18a, 18b are not aligned with the pins 22 of the players which themselves have not rotated.

In a following phase, the pusher 13 is moved radially outward to come into its eclipsed position in which it allows the rotation of the collars 34 of the drive members 18a, 18b (Figure 15).

At this stage, and in a position modification operation the bit 7 with respect to one of the reference positions of the lock, and for example, that of opening or that of closing, the two keys are engaged in their respective rotors and pushed longitudinally. As shown by the arrows 49 in FIG. 12, the pins 22 of the players which are offset each relative to their mortise 35, are based on their crown and push the drive members 18a, 18b and, in particular, bring the collars 34 into the groove 16 while ensuring declutching.

It is thus possible, by pivoting the bit 7 and, in this case, its sleeve 10 relative to the collars 34 of the drive members 18a, 18b, to adjust the position of the bit. In FIG. 16, the adjustment is ensured by pivoting in the direction of the arrow 50 of the pin 7 on a value b of 90 °.

Note that the value of this adjustment angle is necessarily equal to the distribution angle of the faces of the bore polygonal 15a, 15b, or a multiple of this angle, to allow the subsequent engagement of the collars 34 in the bearing surfaces of this bore.

After this adjustment, the pusher 13 is released to stall in rotation of the collars 34, then the blade is pivoted manually, and in the direction reverse of the arrow 50, until the mortises 35 mesh with the hold 22 under the action of springs 37, and, consequently, clutch collars 34 in the bearing surfaces 15a, 15b. These two operations are carried out with the slots 5 for the keys in the vertical open position, since the rotors did not rotate during the angular adjustment of the bit 7. The figure 17 shows that, at the end of the adjustment and while the rotors 4 have the same position, the blade is well offset by 90 ° from its position original shown in Figure 14.

• faire pivoter manuellement le paneton 7, pour décaler angulairement les mortaises 35 des tenons 22 des baladeurs 17a, 17b,
• amener le poussoir 13 en position éclipsée,
• introduire la clé 40 dans le rotor 4 du côté nécessitant la modification, afin que le baladeur correspondant, par exemple 17a, s'appuie sur l'organe d'entraínement 18a et amène le collet de celui-ci dans la gorge 16,
• faire pivoter le paneton 7 et l'organe d'entraínement 18b, opposé au rotor contenant la clé et en prise avec l'alésage 15b, de la valeur nécessaire et d'au moins la valeur de l'angle de répartition des faces de l'alésage polygonal 15a, 15b,
• relâcher le poussoir,
• et faire pivoter la clé jusqu'à ce qu'elle provoque l'engrènement du tenon du baladeur 17a et ramène le paneton à sa position d'origine.

To transform a lock according to the invention from the free key type or the captive key type on one side, after having put the lock in a defined position, opening or closing:

• manually rotate the paneton 7, to angularly offset the mortises 35 of the tenons 22 of the portable players 17a, 17b,
• bring the pusher 13 in the eclipsed position,
• introduce the key 40 into the rotor 4 on the side requiring modification, so that the corresponding player, for example 17a, rests on the drive member 18a and brings the collar thereof into the groove 16,
• rotate the bit 7 and the drive member 18b, opposite the rotor containing the key and engaged with the bore 15b, by the necessary value and at least the value of the angle of distribution of the faces of the polygonal bore 15a, 15b,
• release the button,
• and rotate the key until it causes the engagement of the pin of the player 17a and returns the blade to its original position.

In this position, opening or closing the rotor, the removal of the key is no longer possible since it is in a position angular where its own locks do not tolerate this withdrawal, because not in coincidence with the stator bores allowing their erasure. We note that this captive key function is performed while the other key can be free or trapped, but in another position.

It appears that with this disengageable drive device, it is possible during assembly, either to remove the recovery function, or add a "captive key" function on one and / or the other of the half cylindrical, and, for each half cylinder, to choose the angular position in which this function is to be performed.

Claims (8)

Disengageable driver for larder lock bit actuated by two opposite half cylinders (2), this driver being composed for each half cylinder (2) of a sliding block (17a, 17b) set in rotation and slidably mounted longitudinally in the nose of the rotor (4), and a member (18a, 18b) for rotating the blade (7) relative to which it is slidably mounted longitudinally, this member comprising means capable of meshing with complementary means of the player, characterized in that each drive member (18a, 18b) comprises, opposite the sliding gear (17a, 17b) with which it cooperates, a polygonal radial collar (34) mounted to slide in a bore of the spigot (7), this bore having a complementary profile and being divided into two bearing surfaces (15a, 15b) by a central groove (16) of larger diameter than the diametrical dimension of the collars (34) and of width (L) greater than the width (E) of these two collars, while an r spacer (37) is interposed between the two collars (34), to return them to the clutch position in the bearing surfaces (15a, 15b), and that another second spacer spring (32) is interposed between the players (17a, 17b) to recall them to a position in which each of them is free to rotate relative to the corresponding drive member (18a, 18b). Trainer according to claim 1, characterized in that the collar (34) of each drive member (18a, 18b) is integral with a crown (33) slidably mounted in the axial bore (25) of the nose of the rotor ( 4) corresponding, while its internal bore provides guidance in horizontal translation and in rotation of the cylindrical body (20) of the corresponding player (17a, 17b), this crown comprising, at least one radial mortise (35) capable of receiving a tenon complementary (22), projecting radially from the player. Coach according to claim 1, characterized in that each player (17a, 17b) is traversed by a stepped bore (26, 27) whose part (27) of larger diameter is turned opposite to the member drive (18a, 18b) corresponding and serves as a housing for the enlarged head (29) of a tube (28), this tube, the body of which is slidably mounted in the bore (26) of small diameter of the player, being assembled by an axial pin (30), has an identical tube, to constitute the axial means of connection of the two players. Disengageable drive according to claim 1, characterized in that the blade (7) comprises eclipsable means (13, 13a) ensuring the setting in rotation of the collars (34) of the drive members (18a, 18b) in the groove (16 ) of the body, but tolerating their displacement in translation in this groove. Disengageable driver according to claim 4, characterized in that the means for setting in rotation (13, 13a) of the collars are constituted by a shouldered pusher which, disposed in a shouldered housing (42, 45) of the pin, radial and perpendicular to the 'one of the faces of the polygonal bore (15a, 15b) comes to bear by its shoulder against that of the housing to form a projection (13a) opening into the groove (16) of the bit body but not exceeding the faces of the polygonal bore (15a, 15b). Disengageable drive according to all of Claims 4 and 5, characterized in that the pusher (13) is provided with a threaded head which is screwed into a threaded bore emerging from the end of the bit. Releasable driver according to all of claims 4 and 5, characterized in that the pusher (13) is mounted to slide freely in the bores (45 and 42) of the pin and of the sleeve (10) and is pressed against a shoulder by a spring (43) interposed between it and a threaded plug (44) screwed into a threaded bore emerging from the pin (7), and the pin 7 is traversed in its thickness by a transverse bore (46) intersecting the radial one (45) in a area where the pusher (13) is provided with a groove (47) allowing, by means of a longiform tool, its movement towards the outside. Disengageable trainer according to claim 1, characterized in that a wedge is interposed between the two collars (34) of the drive members (18a, 18b) to prevent their longitudinal translation and the hand-held function.

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