EP1004727A1 - Lock for right-hand or left-hand motor vehicle door - Google Patents

Abstract

The door lock comprises a casing (3) with two compartments (3a,3b). One retaining compartment (3a) contains the bolt (8) and a pawl (7). The other kinematic compartment (3b) contains opening and interior and exterior locking/unlocking control parts (20,22,23,24,28). The compartments define for the parts placing planes parallel to the vehicle vertical transverse axis YZ. The retention compartment comprises an inlet (4) emerging in the transverse direction Y of the passage of the latch. The casing has a symmetrical plane parallel to the longitudinal vertical axis XZ or to the longitudinal transverse axis XY so as to be able to use the same casing for the left or right door.

Description

The present invention relates to a door lock for motor vehicle, with electric or mechanical opening and locking / unlocking control.

In Figure 1, there is shown a motor vehicle V whose longitudinal direction is designated by X, the transverse direction by Y and the height by Z. The lock is generally mounted in the edge of the doors, the edge extending in a plane substantially parallel to the transverse vertical plane YZ of the vehicle, in the position closing doors.

Locks generally have a lock case with at at least two compartments, including one called retention contains retention devices, such as a bolt for retaining a keeper and a pawl intended to lock the bolt in its retaining position of the keeper, and of which a so-called kinematics compartment contains opening and locking / unlocking control devices interior and exterior of the lock, the compartments defining, for said members, laying planes parallel to the abovementioned YZ plane. The retention compartment has a drain which opens out especially in direction Y towards the inside of the vehicle for the passage of a keeper which is fixed to the chassis of the vehicle, in particular to a door frame amount.

Therefore, it is necessary to manufacture housings and organs different locks, when the lock is intended for a door left or right door, which increases the number of parts necessary to make locks for the entire vehicle, and so the price of the lock.

The object of the invention is to provide a door lock for motor vehicle, which can be used for both right door only for a left door.

To this end, the invention relates to a door lock for motor vehicle, said lock comprising a lock housing with at least two compartments, including a so-called retention compartment contains retention devices, such as a bolt for retaining a keeper and a pawl intended to lock the bolt in its retaining position keeper, and a so-called kinematics compartment contains opening and locking / unlocking control devices inside and outside of the lock, said compartments defining, for said members, laying planes parallel to the vertical plane transverse YZ of the vehicle, the retention compartment comprising a drain opening in the transverse direction Y, for the passage of the keeper, characterized in that the housing has a plane of symmetry parallel to the vertical longitudinal plane XZ or to the plane longitudinal transverse XY of the vehicle, so that the same case for both left and right door.

Advantageously, most or all of the lock members the organs, have a plane of symmetry parallel or perpendicular to their installation plan, so that they can also use the same organs both for a left door and for a right door.

In a first embodiment, the housing has a plan of symmetry in XY which passes through the axis of the drain, so as to be able use the same box for a left or right door, for tilting of the housing on an angle of 180 ° around an axis parallel to the longitudinal direction X of the vehicle.

In this case, the axes of articulation of the bolt and the pawl in the housing retention compartment can be provided symmetrical relative to the axis of the drain, so that the assembly can be reversed bolt and pawl on said axes, depending on whether the lock is intended to a left or right door.

It can also be provided that the articulation axes and the maneuvering passages of the housing for the control members are provided, symmetrically with respect to the XY plane of symmetry of the housing, so as to be able to mount said members alternately on one side or on the other of said plane, depending on whether the lock is intended for a door left or right.

In another embodiment, the housing has a plan of symmetry in XZ, the downstream opening in the Y direction on both sides opposite to the housing, so that the housing can be placed in the same position, depending on whether the lock is for a left door or right.

In this case, the axes of articulation of the bolt and the pawl in the housing retention compartment can extend in the plane of symmetry of the case, so as to keep the bolt and the pawl mounted on their respective axes, depending on whether the lock is intended for a door left or right.

According to yet another characteristic, at least one of said organs, for example the bolt, the ratchet or a link condemnation, has a plane of symmetry perpendicular to its plane of poses, so that the same member can be used, depending on whether the lock is intended for a left or right door, by pivoting on a angle between 0 and 180 ° of said member about an X axis.

In this case, the bolt can have a fork shape whose two branches are symmetrical with respect to its plane of symmetry which goes through the axis of rotation of the bolt. The pawl may have a shape in anchor whose two lateral notches are symmetrical with respect to its plane of symmetry which passes through the axis of rotation of the pawl. The link condemnation can have two branches which extend substantially perpendicular and symmetrically to the plane of symmetry of the housing, said plane passing through the axis of rotation of the rod.

According to yet another characteristic, at least one of the organs, for example the bolt, the ratchet, an opening lever exterior, a locking rod, a locking lever outside or a ratchet operating member, has a plane of symmetry parallel to its laying plane, so that you can use the same device, depending on whether the lock is for a left door or right, by turning 180 ° said member, around a Y axis or in Z.

Advantageously, the housing is mounted on a counter plate metallic which has a general L shape with the large face extends substantially in a plane parallel to the aforementioned YZ laying plane and whose small face extends substantially in a plane parallel to the plane longitudinal vertical XZ of the vehicle, facing the drain, said against plate having the same plane of symmetry as the housing.

To better understand the object of the invention, we will now describe as purely illustrative examples and not restrictive, several embodiments shown in the drawing Annex.

• la figure 1 est une vue en élévation longitudinale d'un véhicule automobile schématisé ;
• la figure 2 est une vue partielle et en perspective d'une pièce présentant un plan de symétrie parallèle à son plan de pose en YZ ;
• la figure 3 est une vue partielle et en perspective d'une pièce présentant un plan de symétrie perpendiculaire à son plan de pose ;
• la figure 4 est une vue schématique en plan du compartiment de rétention d'une serrure conforme à un premier mode de réalisation de l'invention, destinée à une portière gauche et dont le boítier présente un plan de symétrie en XY ;
• la figure 5 est une vue analogue à la figure 4, après inversion du montage du cliquet et du pêne, et retournement à 180° autour d'un axe Y du pêne et du cliquet ;
• la figure 6 est une vue analogue à la figure 5, après pivotement du boítier de serrure de 180° autour d'un axe X, ce qui correspond à une serrure pour portière droite ;
• la figure 7 est une vue analogue à la figure 4, mais représentant un boítier ayant un plan de symétrie en XZ, et un cliquet et un pêne ayant un plan de symétrie perpendiculaire à leur plan de pose ;
• la figure 8 est une vue en plan d'une forme de réalisation du pêne et du cliquet pouvant être utilisés dans une serrure conforme à la figure 4 ;
• la figure 9 est une vue en plan du pêne et du cliquet suivant une variante de réalisation, pour une serrure de portière gauche, dont le boítier a un plan de symétrie en XY ;
• la figure 10 est une vue analogue à la figure 9, mais représentant le pêne et le cliquet après inversion de leur position de montage sur leurs axes respectifs ;
• la figure 11 est une vue en perspective éclatée d'une variante de serrure selon l'invention, équipée du pêne et du cliquet de la figure 8 ;
• la figure 12 est une vue en plan d'une autre variante de serrure selon l'invention, vue du côté de son compartiment de cinématique, avec les organes montés dans leur position pour une portière gauche ; et
• la figure 13 est une vue analogue à la figure 12, avec les organes montés dans leur position pour une portière droite.

On this drawing :

• Figure 1 is a longitudinal elevational view of a schematic motor vehicle;
• Figure 2 is a partial perspective view of a part having a plane of symmetry parallel to its YZ laying plane;
• Figure 3 is a partial perspective view of a room having a plane of symmetry perpendicular to its laying plane;
• Figure 4 is a schematic plan view of the retention compartment of a lock according to a first embodiment of the invention, for a left door and the housing has a plane of symmetry in XY;
• Figure 5 is a view similar to Figure 4, after reversing the mounting of the pawl and the bolt, and turning 180 ° around an axis Y of the bolt and the pawl;
• Figure 6 is a view similar to Figure 5, after pivoting the lock housing 180 ° about an axis X, which corresponds to a lock for right door;
• Figure 7 is a view similar to Figure 4, but showing a housing having a plane of symmetry in XZ, and a pawl and a bolt having a plane of symmetry perpendicular to their plane of installation;
• Figure 8 is a plan view of an embodiment of the bolt and the pawl which can be used in a lock according to Figure 4;
• Figure 9 is a plan view of the bolt and the pawl according to an alternative embodiment, for a left door lock, the housing has a plane of symmetry in XY;
• Figure 10 is a view similar to Figure 9, but showing the bolt and the pawl after reversing their mounting position on their respective axes;
• Figure 11 is an exploded perspective view of a variant lock according to the invention, equipped with the bolt and the pawl of Figure 8;
• FIG. 12 is a plan view of another variant of a lock according to the invention, seen from the side of its kinematics compartment, with the members mounted in their position for a left door; and
• Figure 13 is a view similar to Figure 12, with the members mounted in their position for a right door.

In FIG. 2, a substantially flat part 1 is shown, comprising on its upper face ribs 1 a and on its lower surface ribs 1 b , said ribs 1 b being symmetrical, with respect to a plane P1, to the ribs 1 a . The plane P1 is the mean plane of the part 1 which passes through its laying plane, for example a plane parallel to the transverse vertical plane YZ of the vehicle V. The part 1 is therefore in the form of a double-sided part, each side of which is the upside down image of the other side.

In Figure 3, there is shown a part 2 substantially flat, having a rib 2 a and 2 b a rib, said rib 2 b are symmetrical relative to a plane P2, the rib 2a. The plane P2 is perpendicular to the installation plane of the part 2, for example parallel to a vertical longitudinal plane XZ, as shown in FIG. 3. The plane P2 could also be parallel to a transverse longitudinal plane XY of the vehicle V.

In Figures 4 to 6, there is shown a lock, the housing 3 has a plane of symmetry perpendicular to its laying plane, namely a plane parallel to the XY plane of the vehicle. The axis A of the inlet 4 of the housing 3 extends in the direction Y and is contained in the plane of symmetry XY of the housing. In addition, the hinge pins 5 and 6 for a pawl 7 and a bolt 8 respectively, are parallel and included in the same plane parallel to the XZ plane of the vehicle. The axes 5 and 6 are spaced from the axis A of the drain by an equal distance d . The lock shown in Figure 4 is for a left side door of the vehicle V.

To switch to a lock for a right side door, the mounting positions of the pawl 7 and the bolt 8 are reversed on the axes 5 and 6, as shown in Figure 5. In this case, the bolt 8 is articulated on axis 5 and the pawl 7 is articulated on axis 6. In addition, the pawl 7 and the bolt 8, which have a plane of symmetry parallel to their laying plan, namely a YZ plan, are turned on their face opposite, for example by tilting at an angle of 180 °, by relative to a direction Y, as visible in Figure 5.

We also rotate the housing 3 by 180 ° around the X axis, as shown in Figure 6, so that the drain 4 opens in the opposite direction to that shown in Figure 4. We thus obtained a lock for the left door, from the same lock for right door, using the same box and components the lock retention compartment. Of course, we could first rotate the housing, then reverse the mounting of the pawl and of the bolt.

Figure 7 shows another embodiment of the lock which comprises a housing 13 having a plane of symmetry perpendicular to its laying plane, namely here a plane parallel to the XZ plane of the vehicle. In this case, the inlet 14 has two parts 14 a and 14 b which open out, in the direction Y on each side of the housing. In addition, the axes of rotation 15 and 16 of the pawl 17 and of the bolt 18 respectively, are parallel to each other and contained in the plane XZ, so that the distance e between said axes 15 and 16 and each lateral edge of the housing is identical .

In the position shown in solid lines of the pawl 17 in FIG. 7, the lock is intended for a left door, the keeper being intended to cooperate with the bolt 18, passing through part 14 a of the flap 14. The pawl 17 blocks, in the closed position of the door, the branch 18 b of the fork bolt 18, to prevent it from pivoting clockwise towards its open position.

To move to a lock for a right door, the housing 13 is placed in the same position in the edge of the right door, but in this case, the striker is intended to cooperate with the bolt 18, passing through the part 14 b of the inlet 14, and the pawl 17 is shown in broken lines in its position for blocking the other branch 18 a of the fork bolt 18.

In FIG. 7, the bolt 18 and the pawl 17 have a plane of symmetry perpendicular to their laying plane, so as to use the same pawl and the same bolt, both for a right door than for a left door, without reversing their mounting face, and by pivoting said pawl and said bolt about the axis X. In particular, the fork bolt 18 here has two branches 18 a , 18 b , which are symmetrical to each other, by relative to a plane perpendicular to the laying plane and passing through the axis of rotation 16 of the bolt.

FIG. 8 shows a particular shape of the bolt 8 and of the pawl 7 in the intermediate position corresponding to FIG. 5. The pawl 7 has on one side a notch 7 a which is intended to block a conjugate notch 8 a on one of the branches of the fork bolt 8. The bolt 8 also has a lateral projection 8 b and the pawl has a bore 7 b , the purposes of which will be explained with reference to FIG. 11.

In the embodiment shown in Figures 9 and 10, the bolt 8 is devoid of the protrusion 8b, while the pawl 17 has a shaped anchor having two notches 17 a, 17 c on both opposite lateral sides symmetrically relative to a plane perpendicular to its laying plane and passing through its axis of rotation. The pawl 17 also comprises a protruding pin 17 b extending in the plane of symmetry of the pawl, the purpose of which will be explained with reference to FIGS. 12 and 13.

To move from the mounting position for a left door, as shown in Figure 9, to the intermediate position shown in Figure 10, the pawl 7 and the bolt 8 are mounted by reversing their axes of rotation; the bolt 8 is turned upside down, due to its symmetry parallel to its laying plane; while the pawl 7, which has a symmetry perpendicular to its laying plane, is not turned over, the notch 7 a of the pawl 7 then cooperating with the notch 8 a of the bolt 8, while in the position of FIG. 9 , the pawl 7 cooperates by its notch 7 b with the notch 8 a of the bolt 8.

In Figure 11 it is seen that the housing 3 defines a first compartment 3 said retention for holding the pawl 7 and the bolt 8, which are shown in the same Figure 8, and a second compartment 3 b said kinematics intended to contain the control elements of the lock. The two compartments 3 a and 3 b are separated by a transverse partition 3 c which extends in a plane YZ. The retention compartment 3a is intended to be closed by a metal counter plate not shown and known per se. The kinematic 3b compartment is intended to be covered by a cover or by another housing containing electrical drive motors, when the lock is to control opening and / or electric locking.

The kinematic compartment 3b of the housing 3 contains an outside locking lever (LCE) 20, one end 20 a projecting from the housing and is intended to cooperate with a lock cylinder (not shown) for locking / mechanical unlocking the lock. At its other end, the LCE 20 has an opening 20 b which is intended to align with an opening 21 provided in the bottom 3 c of the housing 3, in line with the drain 4, and in the plane of symmetry XY of the housing. The kinematics compartment 3 b also contains a locking rod 22 which has a projection 22 a on its face opposite the bottom 3 c of the housing 3, said projection 22 a being intended to engage in an opening in an arc of a circle 20 c LCE 20, to secure in rotation the LCE 20 and the locking rod 22, with a slight degree of freedom, for the reasons explained below. The locking rod 22 may comprise, in its center, in the vicinity of the projection 22 has a toothed sector 22 b intended to mesh with a gear train connected to an electric motor, in the case of a lock with locking control / electric unlocking. The locking rod 22 has two branches which extend in opposite directions, symmetrically with respect to the plane of symmetry XY passing through the projection 22 a , each branch having an opening in an arc of circle 22 c and at its free end, a pin projection 27, which extends towards the bottom 3 c of the housing 3. Each protruding pin 27 is intended to pass through an opening 26 provided in the bottom 3 c of the housing 3, on either side of its plane of symmetry. Each opening 26 has two arc portions of circle 26 a and 26 b, which extend substantially at right angles relative to each other. Each pin 27 is intended to move in the portion 26 has the widest.

The circular arc opening 22 c of the locking rod 22 is intended to receive a protruding pin 28 a of an intermediate lever 28, which pin 28 a extends on either side of the plane of the intermediate lever 28 , to allow it to turn over, for a right door lock. At its end opposite to the double pin 28 a , the intermediate lever 28 comprises a fork 28 b intended to straddle a hinge pin 25 which projects perpendicularly from the bottom 3 c of the housing 3, inside the kinematics compartment 3 b . The articulation axis 25 is provided in duplicate in the housing 3, symmetrically to its plane of symmetry XY.

Between the bottom 3 c of the housing 3 and the intermediate lever 28, there is interposed a false pawl 23 which has a bore 23 c for its mounting on the hinge pin 25. The false pawl 23 has a protruding pin 23 a which is provided symmetrically with respect to its laying plane, the pin 23 a , which is directed towards the bottom 3 c of the housing 3, being intended to pass through the part in an arc 26 b of the abovementioned opening 26, so to engage in the bore 7b of the pawl 7, to move it between its position for blocking and releasing the bolt 8. Since the pin 23 has also protruded upwards, it is necessary to provide on the intermediate lever 28 a recess 28 c in C, so that the intermediate lever 28 does not interfere with the pin 23 has upwardly projecting the false pawl 23. the pin 28a of the intermediate lever 28, which protrudes downwardly , is intended to come into abutment against one face 23 b of the pawl 23, for the e rotate around the hinge pin 25.

Between the intermediate lever 28 and the locking rod 22, an external opening lever (LOE) 24 is interposed. The LOE 24 is intended to be connected by a rod or cable (not shown) to an external door handle ( not shown) with its end 24a, protruding out of the housing 3 through a window 29 which is provided symmetrically relative to the housing of the plane of symmetry. The LOE 24 has a bore 24 c for its mounting on the aforementioned hinge pin 25. At its opposite end, the LOE 24 has an opening 24 b substantially in an L shape, through which engages the pin 28 a projecting upwards from the intermediate lever 28. The LOE 24 also has an opening in an arc 24 d , which is intended to receive the pin 23 a which is directed towards the top of the false pawl 23, to avoid any interference between this pin 23 a and the LOE 24.

The locking rod 22 has in its center a protruding stud 22 d which extends on either side of its plane and which is intended respectively to engage in the opening 20 b of the external locking lever 20 and in the opening 21 of the housing 3, to serve as an axis of rotation for both the locking rod 22 and the LCE 20.

The operation of the lock illustrated in Figure 11 will now be briefly explained.

In the locked position of the lock, the locking rod 22 is tilted counterclockwise, so as to bring its pin 27, located on the right in FIG. 11, to the intersection of the two parts 26 a and 26 b of the opening 26. Simultaneously, the opening in a circular arc 22 c , on the opposite branch of the link 22, brings the upper pin 28 a of the intermediate lever 28 into the portion of the opening 24 b in L of the LOE 24, which extends substantially over an arc centered on the axis 25. Thus, when the user actuates the exterior door handle, to rotate the LOE 24 clockwise around the axis of joint 25, the pin 28 a of the intermediate lever 28 slides freely in the opening 24 b , which makes the LOE 24 inoperative.

To unlock the lock, the user can, with his key, rotate the lock cylinder, which makes the LCE 20 rotate clockwise. The pivoting of the LCE 20 causes the locking rod 22 to tilt clockwise, thanks to the cooperation of the stud 22 a with the oblong opening 20 c of the LCE 20. The opening 20 c is provided oblong to allow the automatic return of the LCE 20 in its original position, under the action of the recall specific to the lock cylinder. When pivoting the rod clockwise, the opening in a circular arc 22 c causes the linear displacement of the pin 28 a of the intermediate lever 28 in the other portion of the opening 24 b in L, which extends substantially radially towards the axis 25, this linear movement being possible thanks to the fork 28b of the lever 28, which is mounted on the articulation axis 25. It will also be noted that the pin 27, located on the right in FIG. 11 , is now moved to the free end of the portion 26 has the opening 26 of the housing 3.

Thus, when the user actuates the exterior door handle, the LOE 24 can cause the pin 28 a of the intermediate lever 28, because the latter is locked in the opening 24 b at L. The pivoting clockwise of the lever 24, causes the intermediate lever 28 to pivot clockwise, the upper pin 28 a of the intermediate lever 28 moving freely in the circular arc opening 22 c of the locking rod 22. Simultaneously, the lower pin 28 a of the intermediate lever 28 comes to bear against the face 23 b of the false pawl 23 to rotate it clockwise. The lower pin 23 has a false pawl 23 simultaneously causes the rotation of the pawl 7 clockwise, which releases the bolt 8.

When the bolt 8 is pivoted into its open position, the projection 8b comes partially close the portion 26 has the opening 26, which prevents the return of the pin 27 of the locking link 22 to its locked position. This gives a prohibition on locking when the door is in the open position.

To switch from a left door lock to a door lock right door, the locking rod 22 is kept in the same position, due to its plane of symmetry perpendicular to its installation plan, while the LOE 24, the LCE 20, the intermediate lever 28 and the pawl 23 are turned upside down, thanks to their plane of symmetry parallel to their plane of pose. LOE 24, the lever intermediate 28 and the pawl 23 will then be mounted on the other hinge pin 25.

In the variant illustrated in FIG. 12, we see part of the metal counter plate 9 which has a substantially L shape whose large face extends in a YZ plane and whose small face extends in an XZ plane, opposite the downstream 4. Advantageously, the counter plate 9 has the same symmetry characteristics as the entire lock so that it can be mounted on a left or right door.

The kinematic compartment 3b of the housing 3 comprises here an external locking lever (LCE) 30, one end 30 a projecting from the housing and is intended to cooperate with a lock cylinder for locking / mechanical unlocking of the lock . The other end 30 b of the LCE 30 has a bore for its articulation on a stud 31 which projects on either side of the plane of a locking rod 32. The lower stud 31 passes through the opening 21 of the housing 3 , as in FIG. 11. The locking rod 32 has in its center an oblong opening 32 a in which engages a pin projecting downwards (not shown) from the LCE 30, in order to secure in rotation the LCE 30 and the rod 32, with a slight degree of freedom. The locking rod 32 comprises at the end of one of its branches a toothed sector 32 b intended to mesh with a gear train connected to an electric motor, for a lock with electric locking / unlocking control. The opposite branch of the locking rod 32 has an opening in an arc 32 c , in which engages a projecting pin 38 a of an intermediate lever 38 (not visible in the drawings). The intermediate lever 38 is similar to the aforementioned lever 28, except that it does not include the recess 28 c , since the false pawl 33 no longer has a protruding pin, but instead a bore in which engages the protruding pin 17 b of the pawl 17 illustrated in FIG. 9.

Between the intermediate lever 38 and the locking rod 32, is interposed an external opening lever (LOE) 34, which is intended to be connected by a rod or a cable (not shown) to an exterior door handle (not shown ), by its end 34 a which projects out of the housing 3 through the window 29. The LOE 34 is articulated on an axis of rotation 25. At its opposite end, the LOE 34 has a slot 34 b substantially in L, at through which the pin 38 a of the intermediate lever 38 passes. The protruding pin 38 a extends on either side of the plane of the intermediate lever, so as to cooperate with the false pawl 33. The pin 17 b of the pawl 17 crosses an opening in an arc 36 in the bottom 3 c of the housing 3 to engage in the bore of the false pawl 33.

The locking rod 32 further comprises, in the vicinity of its opening 32 c , a boss 37 which extends on either side of its plane. This boss 37 is intended to cooperate with a face 33 b of the false pawl 33, as explained below.

The protruding stud 31 has at each of its two axial ends a diametrical groove 31 a , the diametrical groove 31 a , on the side facing the retention compartment 3 a , is intended to be used for the emergency locking, when the user rotates the stud 31, by inserting the tip of its key into said groove 31 a , at the edge of the door.

It will be noted that, in LOE 34, the slot 24 d of LOE 24 has been eliminated, since the false pawl 33 no longer has a protruding pin.

The operation of the lock of Figure 12 will now be briefly described.

In the position shown in Figure 12, the lock is in its unlocked and closed position. When the user actuates the outside door handle, the LOE 34 pivots in the direction counter-clockwise around the shaft 25, causing the pin 38 has downwardly, which can freely move in the arcuate opening of circle 32 c of the locking rod 32. The movement of the pin 38 has caused by its opposite projecting part the pivoting of the false pawl 33 and therefore the release of the pawl 17, for the opening of the lock.

When the user actuates the interior door handle, an interior opening lever (not shown) cooperates with the pawl 33, to move the pawl anti-clockwise, which simultaneously drives the pin 38 a of the intermediate lever 38.

When the bolt 8 is tilted in its open position, the pawl 17 is held by the bolt 8 in its separated position, so that the false-pawl 33 is supported by its face 33 b against the lower boss 37 of the locking rod 32. Thus, the false-pawl 33 prohibits the movement of the link 32 towards its locked position, when the door is open. However, as this function is only necessary for the driver's front door, which alone has a barrel, it suffices, for the passenger and rear front doors, to use a false-pawl which has an oblong bore for its mounting on the hinge pin 25, to inhibit the locking prohibition function in the open door position.

To lock the lock, the user swivels the locking link 32 clockwise, to bring the pin 38 a in front of the large wing of the L-shaped slot 34 b of the external opening lever 34. The pivoting of the locking link 32 may be effected via the toothed sector 32 b, if the lock is electrically operated, or by the outside locking lever 30, under the action of the lock cylinder. Simultaneously, the lower boss 37 of the locking rod 32 comes opposite the face 33 b of the false pawl 33.

Thus, when the user actuates the exterior door handle, the LOE 34 pivots anti-clockwise, but no longer drives the pin 38 a , because it can freely slide in the large wing of the slot 34 b in L.

On the other hand, when the user actuates the interior door handle, the false-pawl 33 pivots counter-clockwise and comes by its ramp 33 b to push back the boss 37 of the locking rod 32, to cause it to tilt in its unlocked position. An automatic unlocking is thus obtained when opening from the inside, this operation being known by the term "override". The tilting of the locking rod 32 between its locked position and its unlocked position, during the override, is made possible by the slot in a circular arc 32 a in the locking rod 32, so that the LCE 30 n is not moved during automatic unlocking when opening.

Figure 13 shows the same housing 3 and the same bodies in the kinematics compartment, but positioned for right door lock.

The housing 3 has a plane of symmetry in XY, so that the opening in an arc 36 and the axis of rotation 35 are provided at double, on both sides of this plan.

LOE 34, locking rod 32, false pawl 33 and the intermediate lever 38 all have a plane of symmetry parallel to their laying plan, so they can be used for a lock left as for a right lock, turning them inside out. The LCE 30 has a plane of symmetry perpendicular to its laying plan, so that it can be used in the same position for a right lock as for a left lock.

Although the invention has been described in connection with modes of particular realization, it is by no means limited to it and includes all the technical equivalents of the means described and their combinations if these are within the scope of the invention.

Claims (13)

Lock for a motor vehicle door (V), said lock comprising a lock casing (3, 13) with at least two compartments (3 a , 3 b ), one of which a compartment (3 a ) called retention contains retention members , such as a bolt (8, 18) intended to retain a strike and a pawl (7, 17) intended to lock the bolt in its position for retaining the strike, and of which a compartment (3 b ) known as kinematics contains organs (20, 22, 23, 24, 28; 30, 32, 33, 34, 38) for opening and locking / unlocking control inside and outside of the lock, said compartments defining, for said organs, plans for laying parallel to the transverse vertical plane YZ of the vehicle, the retention compartment comprising a drain (4, 14) opening in the transverse direction Y, for the passage of the striker, characterized in that the housing (3, 13) has a plane of symmetry parallel to the vertical longitudinal plane XZ or a u longitudinal transverse plane XY of the vehicle, so that the same box can be used for both a left and a right door. Lock according to claim 1, characterized in that the most, if not all, lock components plane of symmetry (P1, P2) parallel or perpendicular to their plane of pose, so you can use the same organs as well for a left door only for a right door. Lock according to claim 1 or 2, characterized in that that the housing (3) has a plane of symmetry in XY which passes through the axis (A) of the drain (4), so that the same box can be used for a left or right door, by tilting the box on an angle of 180 ° around an axis parallel to the longitudinal direction X of the vehicle. Lock according to claim 3, characterized in that the hinge pins (5, 6) of the bolt (8) and of the pawl (7) in the housing retention compartment (3) are provided symmetrical by relative to the axis (A) of the drain (4), so as to be able to reverse the mounting the bolt and the pawl on said axes, depending on whether the lock is for left or right door. Lock according to claim 3 or 4, characterized in that that the hinge pins (25) and the maneuvering passages (26, 29, 36) of the housing (3) for the control members are provided symmetrically with respect to the XY plane of symmetry of the housing, so as to be able to mount said members alternately on one side or the other of said plan, depending on whether the lock is intended for a door left or right. Lock according to claim 1 or 2, characterized in that that the housing (13) has a plane of symmetry in XZ, the downstream (14) opening in direction Y on the two sides opposite to the housing, so that you can put the box in the same position, depending on whether the lock is intended for a left or right door. Lock according to claim 6, characterized in that the axes of articulation (15, 16) of the bolt (18) and of the pawl (17) in the housing retention compartment (13) extend in the plane of symmetry of the case, so as to keep the bolt and the pawl mounted on their respective axes, depending on whether the lock is intended for a door left or right. Lock according to one of claims 1 to 7, characterized by the fact that at least one of said organs, for example the bolt (18), the ratchet (17) or a locking rod (22), has a plan of symmetry perpendicular to its laying plane, so that you can use the same body, depending on whether the lock is intended for a left door or straight, by pivoting through an angle between 0 and 180 ° of said organ around an X axis. Lock according to claim 8, characterized in that the bolt (18) has a fork shape, the two branches (18 a , 18 b ) of which are symmetrical with respect to its plane of symmetry which passes through the axis of rotation ( 16) of the bolt. Lock according to Claim 8 or 9, characterized in that the pawl (17) has a shaped anchor of which the two lateral notches (18 a, 18 c) are symmetrical with respect to its plane of symmetry passing through the axis of rotation (17) of the pawl. Lock according to one of claims 8 to 10, characterized in that the locking rod (22) has two branches which extend substantially perpendicular and symmetrically relative to the plane of symmetry of the housing, said plane passing through the axis of rotation (22 d ) of the rod. Lock according to one of claims 1 to 11, characterized by the fact that at least one of the organs, for example the bolt (8), the ratchet (7), an external opening lever (24, 34), a connecting rod locking (32), an external locking lever (20, 30) or a member (23, 33, 28, 38) for operating the pawl, has a plane of symmetry parallel to its laying plane, so that you can use the same body, depending on whether the lock is for a left door or right, by turning 180 ° said member, around a Y axis or in Z. Lock according to one of claims 1 to 12, characterized by the fact that the housing (3) is mounted on a metal counter plate (9) which has a general L-shape whose large face extends substantially in a plane parallel to the aforementioned YZ laying plane and whose the small face extends substantially in a plane parallel to the plane longitudinal vertical XZ of the vehicle, facing the drain (4), said counterplate having the same plane of symmetry as the housing

Images