MXPA99004090A - Automotive vehicle door lock - Google Patents

Abstract

The present invention relates to an automotive vehicle door lock, comprising an external closing / opening means of the lock and an electric actuator for actuating said external closing / opening means characterized by the fact that said closing means / Outer opening is a centralized closing / opening wheel with which all the closing / opening external control means of the lock cooperate, said wheel can be rotated by the electric actuator

Description

AUTOMOTIVE VEHICLE DOOR LOCK DESCRIPTIVE MEMORY The present invention relates to an automotive vehicle door lock, and in particular to a door lock for electric closing / opening and mechanically opening operation. Currently, the door lock for automotive vehicle is generally constituted by three compartments superimposed: a first compartment containing the retaining elements of the lock, namely particularly a latch and a ratchet to lock the latch, a bar that engages in the first compartment to allow the coupling of a door strike with the latch of the lock; a second compartment containing the mechanisms for transmitting the movement for opening and closing / opening the lock, in which the inner and outer opening threshers are associated, as well as the drum blender for an anterior lock; a third compartment containing an electric actuator for ordering the opening / closing of the lock, which acts on the mechanisms of the second compartment. The movement transmission mechanisms contained in the second compartment are generally complex and use several pieces, which increases the manufacturing cost and complicates the assembly.

A first object of the invention is to provide an automotive vehicle door lock that uses a small number of parts, in which the assembly is simplified. For safety reasons, the lock of the front doors in an automotive vehicle must allow both the opening and closing of the lock, so that the user can use the interior door handle. On the contrary, in the rear door locks, a child lock is generally provided to block the opening of the rear door, and thus prevent a child from accidentally falling out of the moving vehicle, the inner handle is actuated. of the door. The front doors are also provided with a drawstring to close / open the rear door lock from inside the vehicle cabin. The antagonistic safety tensions between the rear and front doors of an automotive vehicle need to manufacture two different types of lock, which increases the manufacturing cost. A second object of the invention is to provide an automotive vehicle door lock that engages in the same manner with the front and rear doors. When an electric closing / opening lock is used, if the vehicle battery and any spare batteries are depleted or damaged, it should be possible to open all the vehicle doors mechanically, for example, if You must leave the vehicle to search for spare parts. For the front doors, the locks can be opened with a key, because the front locks are provided with a drum. For the rear doors, a drawstring can now be provided to open the interior lock, because the rear locks are not provided with a drum. The object of the invention is to provide a door lock for an automotive electric opening / closing drive, which allows the lock of the rear doors to be opened, in the absence of the friction strip. The third compartment of the lock generally contains an electric actuator housed in its own box that is inserted into the slides in the box of the second compartment, as well as numerous pieces that ensure the connection between the actuator and the frill cord to drive the means of opening / closing inside the second compartment, the assembly of the third compartment is covered by an additional cover. The fourth object of the invention is to provide a door lock in which the connection between the actuator and the opening / closing means inside the second compartment is simplified., the number of pieces used in the third compartment is reduced and the assembly of the third compartment is simplified. For this purpose, the invention has for its first object an automotive vehicle door lock, comprising an external opening / closing means of the lock and an electric actuator for actuating said external opening / closing means, characterized in that said The external opening / closing means is a centralized opening / closing wheel with that which aids all the external opening / closing actuation means of the lock, said wheel is capable of initiating the rotation by means of the electric actuator. In a particular embodiment, the lock comprises a lock ratchet which locks at rest a lock bolt in a position that can have a door strike in a closed door position, an outer opening rocker able to move, under the action of an exterior handle of the door, in contact with an active portion of said pawl to move in a deployed position that releases the latch, which allows the door to open, said wheel cooperates with the outer opening rocker to move , so that the rotation of said wheel, between a stable clutch position, wherein the outer opening rocker is brought into contact with said active portion of the pawl, during its course of door opening, and a stable position that is engaged in where the outer opening rocker no longer contacts the ratchet, during its course of opening the door. For a front door lock it can be foreseen that said wheel cooperates with a blender attack lever which is apt to move in the rotation of said wheel, under the action of a blender of a lock rocker, to move the opening rocker outside between its disengaged and clutch positions.

Advantageously, the blender attack lever is coupled to said wheel with a freedom of movement in circular transaction corresponding to the angular course of said wheel under the action of the actuator, so that the opening / closing movement of the wheel by the electric drive of the actuator does not interfere with the opening / closing movement of the wheel by the mechanical actuation of the rocker, the blender attack lever has two simple contact positions with said wheel, to move it towards its opening position until it is in its position of closing, towards its closing position when it is in its opening position. In this case, the connection between the blender attack lever and said wheel can be formed by the coupling of a fork with a protruding spigot, the arms of said fork being separated from each other at a distance corresponding to the angular course of the wheel under the action of the actuator. According to another characteristic, the outer opening rocker is coupled to the wheel, with a freedom of movement in the direction of the opening course of said rocker arm, for example, by means of the coupling just between a fork and a protruding spigot. In this embodiment of the invention, the lock comprises an inner opening lever for moving an inner opening rocker arm under the action of an inner door handle, in contact with an active portion of the ratchet for moving in an unfolded position, said opening lever inside cooperates, in its course pe door opening, with said wheel to rotate it towards its opening position. For example, the connection between the inner opening lever and said wheel are formed by a simple contact that initiates only the movement of said wheel to its opening position, the return of the inner opening lever to its rest position is carried out freely by means of said wheel. In this way, inside the cab of the vehicle, with the inner handle of the door, the door can be opened from the outside, which is particularly advantageous for a rear door provided with a closing latch for children. It is understood that if the wheel is in its open position, the inner opening lever moves in the vacuum in front of the wheel. According to another characteristic, the wheel comprises several pins perpendicularly protruding to its plane to cooperate with the different means for actuating opening and / or external closing. Advantageously, the actuator is replaced by an electric motor in which the motor shaft joins in rotation a motor pinion that engages tangentially with a gear wheel in which the axis of rotation is perpendicular to the pinion axis and is adjacent to the pinion. the centralized closing / opening wheel mentioned above. According to yet another feature, the actuator is connected to a switch in three positions comprising an arm of a tilting trigger between two stirrups positioned under the blender strike lever to transmit closing / opening information to the actuator of another lock. Likewise, if the user closes / opens a door lock before inserting the key into the rocker, the actuators of other door locks will be informed by the switch of this closing / opening action and will be directed to their respective lock to place all the locks in the same state. The invention has for the second object an automotive vehicle door lock, comprising a lock ratchet which locks a lock latch at rest in a position where it can retain a door strike in a closed door position, an interior opening rocker that can be moved, under the action of an inner door handle, in contact with an active portion of said pawl to move in a deployed position that releases the latch, which allows the opening of the door, characterized by the fact that it comprises a means of closing child restraint to move said rocker between a stable disengaged position where the rocker no longer makes contact with the pawl, during its door opening course, and a stable clutch position wherein the rocker comes into contact with said active portion of the pawl, during its course of door opening. Advantageously, the child restraint closure means cooperates with the inner opening arm to move between the disengaged and engaged positions in a direction markedly perpendicular to the opening course of the arm, so that the clutch / disengagement movement of the rocker arm does not interfere with its opening course. In a first instance, the means of opening a child's safety device is a child-safe release lever and the articulated one around an axle on the body is a lever lever that cooperates with the lever, so that the other end is accessible. on the edge of the door. Preferably, the connection between the child-safe opening lever and the inner opening rocker is formed by the engagement of a fork with a protruding spigot, the spike being free to slide on the fork in the direction of the opening course of the fork. rocker. In another embodiment of the invention, the child-safe opening means comprises a child-safe opening button rotatably mounted in the box and accessible at the edge of the door, and an intermediate lever that joins the button with the inner opening rocker to move it between the disengaged and clutch positions until the button is rotated. In this case, the connection between the intermediate lever and the internal opening rocker is formed, preferably, by coupling an oblong light with a protruding spigot, said protruding spigot being free to slide in the light in the direction of the course opening of the seesaw. It is understood that it is also possible to provide, in contrast, a complementary electric actuator to place the internal opening rocker between its disengaged and engaged positions, under the action of an actuating means located, for example, on the edge of the vehicle. According to another characteristic, the lock comprises an external opening rocker which can be displaced, under the action of an external handle of the door, in contact with an active portion of the pawl to move it in an unfolded position, and a closing means / external opening to move the outer opening rocker between a disengaged position, in which the outer opening rocker does not contact the ratchet until its door opening course, in a clutch position, in which the opening rocker The outer part is brought into contact with said active portion of the pawl, up to its door opening course. Advantageously, the lock comprises an inner opening lever intended to move the inner opening rocker in its opening course, under the action of an inner door handle, said inner opening lever cooperates with said outer closing / opening means for actuating , by means of the opening course by means of the internal opening lever, the displacement of the outer opening rocker is its clutch position, the retraction of the inner opening lever towards its rest position is performed freely in front of the closing means / exterior opening. Thus, in a rear door lock, it is sufficient to place the inner opening rocker in the disengaged position, to obtain the child lock, without blocking the opening course of the inner opening rocker in this way, which it allows to deactivate the back door in front of the outside, until it is directed towards the inner handle of a rear door, the inner opening lever cooperates with the external closing / opening means. For a front door lock it is sufficient to place in the middle of a lock for safe. children in a position where the inner opening rocker is in the engaged position, so that it does not change the structure of the lock, which remains the same for the front as for the rear. According to another characteristic, the lock comprises a return spring for the two rockers of internal and external opening to return them to their rest position, until they have moved on their respective opening course, said common return spring is fixed in the intermediate point in the lock box, one end of said common return spring cooperates with the internal opening rocker, so that an opposite end of the common return spring cooperates with the outer opening rocker. Advantageously, each rocker comprises two notches in which the respective end of the common return spring can be coupled, in the coupling of the spring in each notch there corresponds respectively a disengaged or clutched position of the rocker, which likewise defines a recoil spring common bistable. The invention has for the third object an automotive vehicle door lock, comprising a lock ratchet that locks at rest a lock bolt in a position where it can retain a door strike in a closed door position, an interior opening rocker and an outer opening rocker that can be moved under the respective action of an inner door handle and an outer door handle, in contact with an active portion of said pawl to move it in a deployed arrangement that releases the latch, which it allows the opening of the door, and an electric actuator for actuating the external closing / opening of the door, characterized by the fact that it comprises a mechanically-actuated locking means for moving the internal opening rocker so that a portion of said insurance contacts are made with the external opening rocker and moves it in a stable position The engagement of the external opening rocker does not contact said active portion of the ratchet during its opening course. Said mechanical means of closing the lock is particularly interesting for a rear door closure, understood in the front door, it can be closed, in the same case of electrical failure, with the help with the safety rocker. Advantageously, the two aforementioned rocker arms are arranged in the two parts of said active portion of the pawl, so that it can be brought into contact simultaneously or not with said active ratchet portion, without the respective opening courses and the rockers interfering mutually . In a particular embodiment, the lock comprises a locking means for children with mechanical operation and accessible on the edge of the door, to move the internal opening rocker between a stable disengaged position where the internal opening rocker does not it engages with the ratchet, during its course of door opening, and a stable engaged position wherein the inner opening rocker is brought into contact with said active ratchet portion, during its course of door opening, said rocker arm. Internal opening can be moved in a sub-course through the means of closing child insurance that forms in the middle of the aforementioned insurance closing. Advantageously, the child restraint closure means cooperates with the inner opening arm to move it between the disengaged and clutch positions in a direction substantially perpendicular to the opening course of the internal opening rocker, so that the clutch / disengagement movement of said Rocker does not interfere with its opening course. In a first modality, the child-restraint closure means is a child-safe latch lever articulated around an axle in the box as a lever limb which cooperates with the internal opening rocker, so that one or the other extremity is accessible in the song of the door. Preferably, the connection between the child-lock latch lever and the inner-opening closure is formed by the engagement of a fork with a protruding spigot, the spike being free to slide on the yoke in the direction of the opening course of the child. internal opening seesaw. In another embodiment, the child restraint means comprises a child lock button mounted rotatably on the box and accessible at the edge of the door, and an intermediate lever that attaches the button to the internal opening arm to move it. between the clutch and disengaged potions until the button is rotated. In this case, the connection between the intermediate lever and the internal opening rocker is formed, preferably, by means of the coupling of an oblong light with a protruding spigot, said spigot being free to slide in a light in the direction of the aperture opening course. internal opening seesaw. Advantageously, the child safety lock rotary knob comprises an elastic recoil means to return it to its rest position, until the child safety lock button has moved in its sub-course. According to another characteristic, the lock comprises a return spring common to the two rockers opening internal and external to return them to their resting position, until they have moved in their respective opening course, said common return spring is set at an intermediate point in the lock box, an end of said common return spring cooperates with the internal opening rocker, so that an opposite end of the common return spring cooperates with the outer opening rocker. Advantageously, each rocker comprises two notches in which the respective end of the common return spring can be coupled.; the coupling of the spring in each notch corresponds respectively to a disengaged or engaged position of the rocker arm, which likewise defines a bistable common return spring. Advantageously, the internal opening rocker comprises a ramp in which the corresponding end of the common return spring is moved, up to the sub-course of the child restraint means, said ramp is arranged to define an unstable position of the internal opening rocker which is returned to one of its stable positions engaged or disengaged by said corresponding end of the common return spring. According to another feature, the internal opening rocker comprises a protrusion in the direction of the external opening rocker to contact the latter until it has been displaced under the action of the insurance closing means. Preferably, said protrusion is arranged so as not to contact the external opening rocker until the displacement of the rockers between their respective disengaged and clutch positions. According to a first variant, the internal opening rocker moves, until the middle sub-course of the children's safety lock, plus its stable position is clutched and remains in the engaged position during the entire sub-course. According to a second variant, the internal opening rocker moves, until the substream of the child restraint closure means, plus its stable position is disengaged and remains in disengaged position during the entire sub-course. The invention has as its fourth object an automotive vehicle door lock, comprising an internal opening wire or threshing machine, and an electric actuator for actuating the external closing / opening of the lock, characterized in that it comprises a hood in the that the actuator is housed, a tube is provided that emerges in the hood for the passage of the threshing or the internal opening cable, in order to protect it from possible forcing through a glass door seal. According to another characteristic, the hood comprises an outer flap inclined towards the lower part and separated from the lock to divert the spill of water that comes from the glass joint of the door separated from the internal mechanisms of the lock. According to another characteristic, the hood comprises a handle for provisionally securing an external opening threshing, until the lock is assembled on the edge of the door, said external opening threshing is joined to a limb having a lever. outer opening of the lock and inserted along said temporary fastening handle and one edge of the deflecting flap. According to another feature, the hood comprises at one end a housing for the electrical connection pins of the actuator. Advantageously, the actuator is constituted by an electric motor in which the motor shaft rotates a motor pinion which engages tangentially with a gear wheel in which the axis of rotation is perpendicular to the pinion axis and is adjacent to a pinion. centralized closing / opening wheel with that which cooperates with all external closing / opening actuation means of the lock. According to another characteristic, the actuator is connected to a switch in three positions, which comprises a pivoting trigger arm between two stirrups positioned under a blender attack lever to transmit the closing / opening information to the actuator of another lock, until the blender of a lock drum moves said blender attack lever to actuate the closing / opening of the lock. Likewise, if the user closes / unlocks a door before inserting a key into the drum, the actuators of other door locks will be informed by the switch of said closing / opening command and will approach their respective lock. to place all the locks in the same state. It is understood that the four objects of the invention defined above may be taken separately or in combination with each other. To better understand the different objects of the inventionwill be described, by way of purely illustrative and non-limiting examples, several embodiments represented in the attached drawing. In said drawing: Figure 1 is a sectional view of assembly of 3 compartments of the lock of the invention, according to a vertical longitudinal plan of the door of an automotive vehicle, passing near the entrance of the crossbar, omitting the latch; Figure 2 is a sectional view of the first compartment of Figure 1, following the line II, after a rotation of 180 °; Figure 3 is a sectional view of the first two compartments of a lock of the prior art, in which the assembly means have been modified; Figure 4 is a sectional view of the second compartment of the lock of figure 1, following the line IV, after having made a rotation of 180 °, the internal opening balance is in its clutched position; Figure 4A is a schematic perspective explored view showing the connection between a rocker mixer and the blender attack lever of Figure 4; Figure 4B is a schematic exploded perspective view that Illustrates the connection between the child lock latch lever and the lock box of figure 4; Figure 5 is a reduced view analogous to Figure 4, showing the inner opening rocker in its disengaged position by the child safety lock lever, according to the second object of the invention; Figure 6 is a reduced view analogous to Figure 4, showing the sub-course of the internal opening rocker to move the external opening rocker in closed position, according to the third object of the invention; Figure 6A is a partial and enlarged schematic view of a detail of Figure 6, showing the unstable position of the internal opening rocker until the sub-course of the child-safe lock lever; figure 7 is a partial schematic view of a door edge provided with the lock of figure 2, illustrating the coupling of a door strike on the lock cross member; Figure 8 is a view analogous to Figure 1, the third compartment of the lock as well as the centralized closing / opening wheel being omitted; Figure 9 is a view analogous to Figure 5, but representing a variant embodiment of the second and third objects of the invention; Figure 10 is a view taken along the line X of Figure 1, the hood of the third compartment being omitted; Figure 11 is a view analogous to Figure 10, but representing a variant embodiment of the third compartment for the actuator; and Figure 12 is a bottom perspective view of the hood of the lock according to a fourth object of the invention, intended to cover the third compartment illustrated in Figure 10 or 11. In Figure 1 the lock according to the invention is observed. a cut in a longitudinal vertical plan of a door in which it is intended to be mounted. The lock comprises 3 compartments A, B and C superimposed in the longitudinal direction. With particular reference to FIGS. 1, 2 and 7, the first compartment A containing the retaining elements of the lock will be described in detail. The compartment A is defined between a metal plate control 1 that is intended to be placed on the edge of the door, a first plastic box 2 which is mounted on the counterplate 1. The compartment A contains a fork latch 3 which is hinged on a fixed axle 4 mounted perpendicularly on the counterplate 1. The latch 3 is intended to cooperate with a retainer 3 in a closed position to retain a door strike 8 (see figure 5). In the position illustrated in figure 2, the latch 3 is not locked in position by the ratchet 5, and the opening of its fork is oriented towards the entrance of the cross member 9 to allow the coupling / uncoupling of the door strike 8 with the latch 3. On the fixed shaft 4 of the latch 3, a retaining stop 10 is mounted for the setting of the door and the adjustment in the vertical direction relative to the door strike 8. A retaining stop portion 10a projects on the bottom 2a of the box 2, at the level of the cross member 9 (see figure 7), so that an elastic handle 11 of the bottom 2a of the box 2 covers said portion 10a of the retaining stop 10, to allow a slight readjustment of the front door to the strike 8. The counterplate 1 comprises on its opposite edge to the entrance of the crossbar 9, a handle 12 recurved perpendicularly to the plane of the counterplate 1 and comprising on its inner face turned toward the latch 3 a protruding portion 12a substantially V in vertical cross section, obtained for example by molding and a portion of the plate 12. Said portion metal projection 12a is intended to serve as a latch retaining stop in the transverse direction, until it comes into contact with a second thick recess 3a formed in one of the arms of the fork of the latch 3. It will be noted that the retaining stop of door setting 10 does not include the setting of the strike in the transverse direction of the door, contrary to certain locks of the prior art. The ratchet 5 comprises at its opposite end 5a in relation to its hinge axis 6, at its end in contact with the latch 3, a second-release handle to dampen the ratchet tilt , under the action of the spring 7, towards the latch 3 that goes towards the retaining stop against a portion of the box 2. The ratchet 5 comprises, on the other hand, a handle 13 recurved in a plane perpendicular to the plane of the counterplate 1, to serve as an active portion of the ratchet intended to be actuated by the mechanisms located in the second compartment B for the opening / closing of the lock. The counter plate 1 comprises several cones of fixing sections 14 projecting towards the inside of the compartment A for the passage of the fixing screw in the door bracket (not shown). The second compartment B containing the elements of kinematics and transmission of movement of the lock will be described in detail, with reference to figures 1 and 4 to 6. The second compartment B is defined between the bottom 2a of the first box 2 of the first compartment A and a second plastic box 15 on the bottom 15a with the separation of the third compartment C.

Figure 3 represents a lock of the prior art, in which only the axes 4 and 6 have been modified. In fact, the axes 4 and 6 are comprised in a limb a shoulder 4a, 6a that is intended to be supported on the face outside of the counter plate 1, the opposite end 4b, 6b of the axes is joined to the bottom 15a after the second box 15, which allows assembling the assembly of the parts of the lock, starting from plate 1, to the third compartment , without having to return the lock to join the axes to both ends. By way of information, the reference figures 16 to 18 respectively designate a closing lever as an external opening lever and an intermediate lever of the prior art lock. As seen in figures 1 and 4, a wheel 20 is mounted rotatably on the bottom 2a of the box 2 around an input shaft 21 perpendicular to the bottom plane 2a of the box 2, the input shaft 21 passes through the bottom 15a in the box 15 to uncover in the third compartment C, as explained below. The wheel 20 comprises on its face turned towards the bottom 2a of the box 2, two pegs 20a and 20b and, on its face turned towards the bottom 15a of the box 15, a peg 20c, said pegs are perpendicularly projecting in relation to the plane of the wheel 20 and a periphery is distributed. As seen in Figures 1 and 4, the pin 2a is in contact with a recurved handle 22a and an intermediate lever 22 generally known under the designation "over-ride". Said intermediate lever 22 is articulated on axis 23 at one end of an inner opening lever 24. The inner opening lever (LOI) 24 is articulated at a central point on a fixed axis 25 (see figure 8) in a support flange substantially flat 26 which extends in the longitudinal direction of the door and which is adjacent to the counterplate 1 at the edge where the cross member 9 is uncovered. The end of the LOI 24 opposite its articulated end on the intermediate lever 22, is it articulates in a threshing or in an inner opening cable 27 extending in the longitudinal direction of the door and continuing in said direction by means of a guide sleeve 28 carried by the support flange 26. The cable or threshing inner opening 27 is intended to be supported by an internal door handle or vane. The LOI 24 is arranged to pivot in the direction of the arrow a in Figure 8, towards a pull on the cable or the inner opening threshing 27 in the longitudinal direction indicated by the arrow X, to translate in the vertical direction in a distance ß the intermediate lever 22, so that the wheel 20 is rotated about the axis 21, and the pin 20a is displaced by the recurved portion 22a of the intermediate lever 22. A portion of the figure 10 is schematically indicated in figures 10 to 12. cable or of the inner opening threshing 27 to indicate its relative position in relation to the third compartment C. When the rolling of the LOI 24 in the direction of the arrow to, its end in which the intermediate lever 22 is articulated, is intended to be brought into contact with an inner opening rocker (BOI) 29 to place it in a substantially vertical direction at a distance indicated by the arrow J. The BOI 29 comprises a oblong light 29a in which is coupled, in a sliding manner, in the vertical direction a spur 30 projecting from the bottom 2a of the box 2, to guide and limit the displacement of the BOI 29. The BOI 29 comprises a shoulder end part 29b which is intended to be brought into contact with the retracted handle 13 forming the active portion of the ratchet 5, as clearly shown in FIGS. 1 and 8. The opposite end of the BOI 29 comprises a protruding tang 30a which is coupled in a sliding manner. in the vertical direction in a tip fork 31a of a child lock latch lever 31. As best seen in Figure 4B, the child lock latch lever 31 is articulated in a central point about an axis 32 in a side wall of the box 2 extending in the longitudinal direction of the door, so that the end 31b of the lever 31, opposite in relation to the axis 32 to the fork 31a, is more accessible on the edge of the door to allow maneuvering from the outside. The BOI 29 moves in the direction of the arrow d, the direction d is defined between the fixed axis 30 and the projecting spur 30a of the rocker 29. Under the action of the pivot of the child safety lock lever 31 on the shaft 32, in the direction that the arrow is shown in FIG. 4B, BOI 29 swings in the direction of the arrow? in FIG. 4 around the fixed axis 30. The compartment B comprises, on the other hand, an outer opening lever (LOE) 33 that articulates at its center on a fixed axis 34 next to the lock box. A tip 33a of the LOE 33 has a projection from the box 15 of the second compartment B in the transverse direction of the door, to engage, hingedly, at a recurved end of an outer opening threshing 35, shown in mixed sections in Figure 12. Between the shaft 34 and the end 33a of LOE 33, a recurved handle is provided. 33b intended to rest against a rigid stirrup 36 of the box 2 to limit the movement of an angular axis of the LOE 33 in the counter-clockwise direction. The end of the LOE 33, opposite its externally projecting end 33a, is articulated on an axis 37 in a central portion of an outer opening rocker (BOE) 38. The BOE 38 has at one end a fork 3a in which coupling the projecting tang 20b of the wheel 20, the fork 38a is located between the wheel 20 and the bottom 2a of the box 2. The opposite end of the BOE 38 comprises a shoulder part 38b which is intended to be put in contact with the portion 13 of the ratchet 5 and is placed in the unfolded position, as explained later.

Under the action of the external opening threshing 35, the LOE 33 pivots on its fixed axis 34 in the direction of the arrow a ', which has the effect of displacing in translation, in a substantially vertical direction, in BOE 38 at a distance indicated by the arrow ß' in figure 4. The fork 38a of the BOE 38 allows the sliding in the direction ß 'of the BOE 38 in relation to the tang 20b of the wheel 20. In which the wheel 20 rotates in the direction of the double arrow?' in Figure 4, the tang 20b pivots the BOE 38 about its fixed axis 37 in the direction of the arrow "to engage / disengage the BOE 38 with the active portion 13 in ratchet 5, as explained below.

The compartment B of the lock comprises, on the other hand, a blender attack lever (LAB) 40, wherein an end portion 40a protrudes to the outside of the lock box and in the form of a fork retracts in the longitudinal direction of the door to cooperate with an off-center pawn 41a and a blender 41 of a lock drum (see figure 4a). The LAB 40 is articulated at an intermediate point on a fixed shaft 42 on the bottom 15a of the case 15. The opposite end 40b of the LAB 40 with respect to the shaft 42 has a fork shape cooperating with the projecting spigot 20c of the wheel 20, sideways to the pin 20b, so that the LAB 40 does not interfere with the BOE 38. Under the action of an angular axis movement of the pin 41a of the blender 41 in the direction of the double arrow d 'in the figure 4A, in LAB 40 pivots in the direction of the double arrow e 'the LAB 40 pivots in the direction of the double arrow e' so that one of the arms of the fork 40b cooperates with the tang 20c of the wheel 20. The arms of the fork 40b are angularly separated so as to allow a freedom of circular translation of the pin 20c in the direction of the double arrow '', in which the wheel 20 is put into rotation by the traction shaft 21 or by the lever intermediary 22. For a rear door lock, the LAB 40 it can be suppressed or left in its place, immobile, in the absence of the blender 41. In the compartment B, a housing 43 for an open door detection sensor (not shown) is provided in the bottom 2a of the box 2. Referring more particularly to Figures 4 and 6a, there is a spring thread 44 wound at its center around a fixed point 44a on the bottom 2a of the box 2, and where the two opposite ends 44b engage respectively in a housing 45, 46 used in the rockers 29 and 38. The operation of the spring 44 is substantially symmetrical for each rocker 29, 38, the operation of the spring 44 will be explained in detail only with reference to the BOI 29, as seen in FIG. Figure 6A. Where the BOI 29 moves in the direction of the arrow d, under the action of the LOI 24, the end 44b of the spring 44 stretches elastically upwards, which causes the elastic recoil of the BOI 29 towards its position of rest, where the user releases the inner handle of the door. The housing 45 comprises two notches 45a, 45b separated by a small hill 45b to define two stable positions of the rocker 29 in the direction of the arrow?. Similarly, wherein the child lock latch lever 31 is in the position illustrated in Figure 4, the end 44b of the spring 44 is located in the notch 45a furthest from the fixed point 44a, to define a stable clutch engaged position. rocker 29 with the active portion 13 of the pawl 5. Where the child lock latch lever 31 moves in the direction of the arrow e, the rocker 29 moves in the direction of the arrow,, in which it carries the tip 44b of the spring 44 in the second groove 45b closest to the fixed point 44a of the spring 44, to define a stable disengaged position of the rocker 29 relative to the ratchet 5 as seen in figure 5. The housing 46 of the BOI 38 comprises same way two similar notches to define two stable positions clutch and disengaged of the rocker 38 relative to the ratchet 5, towards the pivoting of the BOI 38 in the direction of the arrow a ". BOI 29 differs from accommodation 46 of the BOE 38, in that said housing 45 comprises a ramp 47 extending from the notch 45a has a fixed point distance 44a from the spring 44, to define an unstable position of the rocker 29, wherein said rocker moves in a subcurrent of the child lock latch 31. The unstable position of the tip 44b of the spring 44 is illustrated in mixed fractions in Figure 6A , the extremity 44b rests on the ramp 47. Said unstable position of the rocker 29 is illustrated in the same way in Figure 6. As seen in Figure 6, where the sub-course of the child safety lock lever 31, the rocker 29 is inclined towards the rocker 38, so that a protruding portion 48 of the rocker 29 comes into contact with the BOE 38, to place it in its disengaged position. The protruding portion 48 of the BOI 29 has the effect of tilting a limb 44b of the spring 44 from one notch to the other in the housing 46 of the BOE 38. In FIG. 6, it is noted that the child lock latch lever 31 it is pivoted to the right, towards the engaged position of the rocker 29 of Figure 4, but it may, in contrast, be provided that the child lock latch lever 31 is swung to the other side of the disengaged position of the rocker 29 illustrated in figure 5, having for example the protruding portion 48 of the rocker 29 located on the other side of the fixed shaft 30 of the rocker 29, to place the BOE 38 in its disengaged position. It will be noted that, in FIG. 6, the BOI 29, in the sub-course, remains in the disengaged position. In Figure 9 a variant embodiment of child lock is shown in compartment B. The child lock latch lever 31 is replaced by a child lock button 131 (represented in interrupted sections) that is accessed at the edge of the door, said button 131 is next to an eccentric portion 131a that is articulated in an intermediate lever 132 comprising a central oblong light 132a in which a fixed axis 133 slides in In relation to the bottom 2a of the box, the opposite end of the intermediate lever 132 comprises a pin 132b that slidably engages an oblong light 134 used in the stepped terminal portion 29b of the BOI 29, to allow the opening course of the BOI 29. In the position shown in FIG. 9, the BOI 29 is in its disengaged position, that is, in the interior closed position of the child safety lock. Said disengaged position of the rocker corresponds to an inclined position P1 of the child safety lock button 131, with the fixed axis 133 which is at one end of the oblong light 132a of the intermediate lever 132. To pass in the open position, with the BOI 29 in the engaged position, it suffices to turn the button 131 in the direction of the arrow ß ", towards an intermediate position P2 in which the fixed axis 133 is in the middle in the oblong light 132a.Finally, to move the BOI 29 in the direction of the BOE 38, to move the latter in open disengaged position, it is sufficient to carry out the rotation of the button 131 in a sub-course of the intermediate position P2 towards a position P3 corresponding to the fixed axis 133 located at the other end of the oblong lumen 132a of the intermediate lever 132. A return spring 135 can be provided for returning the rotary knob 131 from the position P3 to the position P2. on the other hand, it could also provide for a means of opening child insurance that is not accessible at the edge of the door, but is operated by a complementary electric motor, the order to open child insurance is made through a button located for example on the edge board at the front of the cabin. With reference to Figures 1 and 10 to 12, the third compartment C containing the necessary elements for the electric actuator will be described. The actuator comprises a reversible electric motor 50 having two tabs 51 and 52 wherein the respective ends 51a, 52a recur in the longitudinal direction of the door and serve as connection pins with the electricity supply of the vehicle battery. The clips 51a and 52a are located in the housing 53 used in the hood 54 that defines with the bottom 15a of the box 15 of the compartment C. The housing 53 is likewise adapted to receive a busbar 55, as illustrated in FIG. Figure 11. The electric motor 50 comprises, on the side opposite the tongue 51 and 52 an externally projecting motor shaft 56 which is adjacent to a motor pinion 57, the latter of which is tangentially engaged with a gear wheel 58 which is adjacent to and coaxial with the traction shaft 21 which extends perpendicularly to the shaft 56. In the variant of FIG. 11, the compartment C may contain, on the other hand, a switch 60 with three positions, said switch comprises a trigger arm 61 represented in interrupted fractions, which is intended to balance a on the other hand its central equilibrium position under the action of two stirrup pawns 62, 63 located under the LAB 40, where said arm is swung by the drum 41 blender.

As the trigger arm 61 swings to the right or to the left, a respective opening or closing information is transmitted by the middle of bar 55, a. the other horseshoes of vehicle door. In the bar 55, which replaces the pins 51a and 51b of figures 10 and 12, the power bars of the electric motor 50 are indicated at 55a and 55b, at 55c the positive bar of the switch 60 and at 55d and 55e, the respective bars for outputting the closing and opening signal towards the other locks. With reference to figures 1 and 12, it can be seen that the hood 54 has a shape of a parallelepiped boot which is closed by the bottom 15a of the box 15. Two slits and a clamping clamp of two are indicated at 54a and 54b, respectively. the hood 54 with the box 15. At the bottom of the plane of the hood 54, there is a projection towards the outside, in the longitudinal direction of the door, a hollow tube 65 intended to protect the threshing or the inner opening cable 27 from any attempt to force it from the outside, observing that said threshing or inner opening cable 27 allows opening the outer opening balance 38, thanks to the intermediate lever 22. In a vertical longitudinal wall of the hood 54 a clamp 66 is provided for the provisional fixing of the external opening threshing 35.

This same wall of the hood 54 extends in the direction of a second compartment B of the lock and is terminated by a clamp 67 turned towards the outside in a plane simply parallel to the plane of the bottom of the hood 54. A deflection flap 68 extends between said longitudinal wall of the hood and the recurved clamp 67, in a direction inclined towards the lower part and towards the outside of the lock, to guide the spillage of the waters coming from the joint of the door panes separated from the lock. The operation of the lock of the invention will be briefly described. For a front door lock, the user can close / open the lock, either with an electronic sorting box to activate the electric motor 50 that initiates the rotation of the wheel 20, or with a key acting on the lock rocker which causes the pivoting of the blender attack lever 40 which rotates the wheel 20. On the contrary, the opening signal received by the electric actuator can be emitted by an electronic recognition signal, not shown, which is part of a system known as "hands-free access to the vehicle" does not require the use of the key or the order to open the lock. In this system, the electronic recognition equipment is equipped with a radio transmitter and is designed to be able to dialogue with a radio device incorporated in a clock, or a card, or a sheet, used by the user. The electronic recognition equipment does not produce its opening signal until after the identification of the appropriate owner. In the position illustrated in FIG. 4, the lock is opened facing the outside by the BOE 38 which is in disengaged position relative to the active portion 13 of the pawl 5. Where the motor 50 of the actuator rotates the wheel 20 in the clockwise direction, the pawn 20b causes the swing of the BOE 38 in the direction "in a reduced course, until the shoulder portion 38b of the BOE 38 is in engaged position with the active portion 13 of the ratchet 5. In the rotation of the wheel 20 under the action of the actuator, the pawn 20c moves between the arms of the fork 40b of the LAB 40, without displacing the latter, and the pawn 20a is separated from the recurved portion 22a of the lever 22. If the user you want to open the lock with your key, the crank 41 of the rocker rotates the LAB 40 pivotally in the counterclockwise direction, which causes the displacement of the pawn 20c by means of one of the arms of the fork 40b and then the rotation of the wheel 20 which simultaneously traverses, through the intermediate of the pawn 20d, the pivotal rotation of the BOE 38 and its open clutch position.If the lock is in an open state, the LAB 40 will be activated under vacuum, since the pawn 20 c has moved in a clockwise direction. Where the BOE 38 swings in its engaged position, the end 44b of the spring 44 will be passed from one sample to the other in the housing 46, so that the BOE 38 is in a stable, engaged position. Once the lock is opened facing the outside, the user can open the door by means of the external door handle, which causes, the intermediary of the external opening threshing 35, the rolling of the LOE 33 in the direction of the the clock hands, and then mounted in the direction of the arrow ß 'of the BOE 38 which thus raises the active portion 13 of the ratchet 5, and debits the latch 3 which automatically balances in the position illustrated in figure 2, under the effect of the compressive force of the door seal, the door strike 8, in some way, being ejected from the cross member 9. Assuming that the user is inside the vehicle cabin, with the locks in the closed position outside, as illustrated in figure 4, you can use the inner door handle, causing the LOI 24 to swing, which simultaneously draws the opening of the door, thanks to the BOI 29 that moves the ratchet 5 and the outer opening of the door, thanks to the intermediate lever 22 which rotates the wheel 20 in the clockwise direction, using the pawn 20a. In fact, in a front door lock, the BOE 29 must always be repositioned in its clutched position at the same time as the door is opened from the inside, for safety reasons: in the "over-ride" function " A rear door lock can not be used on the LAB 40, because the rear doors are devoid of the ratchet. In this way, to open the rear doors from the outside, the user must use his electronic box of remote controls or by means of an electronic recognition device that transmits the opening information to all the door locks of the vehicle, the opening of the door lock The rear part is made possible by the electric motor 50 of the actuator suitable for each lock. For a rear door lock, the user will swing the child safety lock lever 31 and the position of figure 5, for safety reasons for children. For this purpose, the extremity 31b of the child-safe opening lever which is accessible at the door edge can be placed. The position of figure 5, the BOI 29 is in a disengaged position in front of the pawl, so that an infant using the inner handle of the door can not cause the door to open. Indeed, if some element does not block the displacement of the LOI 24 or of the BOI 29, the latter will move in the vacuum next to the active portion 13 of the ratchet 5 therefore, when using the inner door handle, the child simultaneously cause the lock to open to the outside, thanks to the intermediate lever 22 that turns the wheel 20 clockwise, using the pawn 20a which allows a person to open the rear door from the outside. It is understood that if the rear door lock is in the open position towards the outside, the intermediate lever 22 will use the pawn 20a vacuum and rotate it in the necessary course. Assuming that all the vehicle's power sources are turned off or damaged, and that the user wishes to close all the doors of the vehicle before exiting in order to find the locks, then the rear door lock will be in the external open position. For the front door locks, you can close them using the ratchet with your key, but for the rear doors, you can not close the locks in the absence of the drawstring. In these conditions, the child lock latch lever 31 is used, so that it moves in a sub-course that drives the BOI 29 to move towards the BOE 38, as illustrated in figure 6, it will be able to balance the BOE 38 in disengaged position. The user will only have to pull the back part in the closed position to close it towards the outside. Until you get back into your vehicle, you can close the front doors thanks to your key, using the inner handle of the rear door from inside the cabin, you can open the lock to the outside, then open the rear door with the outer handle of the door, and swing thanks to the child safety lock lever 31, the BOI 29 its clutch position, if you want to remove the child lock. Although the invention has been described in relation to several particular embodiments of the invention, it is evident that it is not limited and that it comprises all the technical equivalents of the described means, as well as their combinations, which come within the scope of the invention. .

Claims (10)

NOVELTY OF THE INVENTION CLAIMS

1. - An automotive vehicle door lock comprising an external closing / opening means of the lock, an electric actuator (50) for ordering said external closing / opening means a wheel (20) capable of being turned by the electric actuator ( 50), a lock pawl (5) that locks in rest a lock latch (3) in a position that can retain a door strike (8) in a closed door position and an outer opening rocker (38) that can be moved, under the action of an external door handle, in contact with an active potion (13) of said pawl (5) to move it in an unfolded position that releases the latch (3), which allows the door to be opened , characterized in that said wheel is a centralized closing / opening wheel (20) with which all the external closing / opening command means (22, 38, 40) of the lock cooperate, said wheel (20) cooperates with the opening rocker or (38) to move it, so that the rotation of said wheel, between a stable clutch position where the outer opening rocker is brought into contact with said active potion (13) of the pawl, during its course of door opening ( d), as a stable disengaged position in which the outer opening rocker does not contact the ratchet (5), during its course of door opening.

2. - The lock according to claim 1, further characterized in that said wheel (20) cooperates with a beater attack lever (40) that can rotate said wheel, under the action of a mixer (41) of a rocker lock, to move the outer opening rocker (38) between their disengaged and clutch positions.

3. The lock according to claim 2, further characterized in that the beater attack lever (40) is coupled to said wheel (20) with a freedom of movement in circular translation corresponding to the angular course of said wheel under the action of the actuator (50), so that the movement (y ') of opening / closing of the wheel by the electrical command of the actuator interferes with the opening / closing movement of the wheel by the mechanical command of the ratchet, the lever beater attack (40) present two simple contact positions with said wheel (20), to move it to its open position until it is in its closed position, or to its closed position until its opening position is found .

4. The lock according to claim 3, further characterized in that the connection between the beater attack lever (40) and said wheel (20) is formed by the coupling of a fork (40b) with a protruding pin ( 20c), the arms of said fork are separated from each other at a distance corresponding to the angular course of the wheel under the action of I actuator (50).

5. - The lock according to one of claims 1 to 4, further characterized in that the outer opening rocker (38) is coupled to the wheel, with a freedom of movement in the direction of the opening course (ß ') that said rocker, for example by coupling between a fork (38a) ) and a protruding spigot (20b).

6. The lock according to one of claims 1 to 5, characterized in that it comprises an inner opening lever (24) intended to displace an inner opening rocker (29) under the action of an inner door handle, in contact with an active portion (13) of the ratchet (5) to move it in the unfolded position, said inner opening lever cooperates, in its door opening course (), with said wheel (20) to rotate it toward its opening position.

7. The lock according to one of claims 6, further characterized in that the connection between the inner opening lever (24) and said wheel is formed by a contact (22a) that only activates the movement of said wheel towards its opening position, the return of the inner opening lever to its rest position is carried out freely in relation to said wheel.

8. The lock according to one of claims 1 to 7, further characterized in that the wheel (20) comprises several pins (20a, 20b, 20c) perpendicularly projecting to its plane to cooperate with the different means of closing command / outer opening (22, 38, 40).

9. - The lock according to one of claims 1 to 8, further characterized in that the actuator is constituted by an electric motor (50), of a motor shaft (56) that rotates a motor pinion (57) that is it engages tangentially with a gear wheel (58), wherein the axis of rotation (21) is perpendicular to the pinion axis and is adjacent to the aforementioned centralized closing / opening wheel (20).

10. The lock according to one of claims 2 to 4, further characterized in that the actuator (50) is connected to a switch (60) in three positions comprising a swing arm (61) tilting between two stops of retention (62, 63) placed under the beater attack lever (40) to transmit closing / opening information to the actuator of another lock.