EP3447220A1 - Locking system for openable body section of a motor vehicle comprising a flush handle - Google Patents

Abstract

The invention relates to a locking system (12) for a motor vehicle opening, the system (12) comprising an opening and a handle of the flush type comprising at least one frame, a gripping lever (30), a transmission lever ( 34), characterized in that it comprises a first reversible inertial safety system (28) and a second irreversible inertial safety system (72).

Description

The invention relates to a locking system for a motor vehicle opening comprising a flush-type handle, an opening and a double inertial safety system.

We know a flush handle which is described and represented in the document EP-A1-3106596 , and which is designed to blend visually with the associated opening.

The flush handle described in the document EP-A1-3106596 includes a frame fixed on the opening, a lever and a transmission lever.

The gripping lever comprises a gripping element, the gripping lever being rotatably mounted relative to a frame about a first axis of rotation, between at least one rest position in which the gripping element is flush with one face external of the opening, an active position in which the gripping element protrudes relative to the outer face of the opening and an open position in which the gripping lever unlocks the opening.

The transmission lever is pivotally mounted relative to the frame about a second axis of rotation, between a rest position and an actuating position in which the transmission lever actuates the opening of a bolt of the opening, the transmission lever being rotated by the gripping lever.

The gripping element of the gripping lever is the visible part and manipulable by the user to open the opening.

For safety reasons, it is known to associate an inertial safety system to the handle to prevent inadvertent actuation of the handle in case of impact of the vehicle.

We know in particular a handle that has a double inertial safety system that is described in the document EP-B1-2432954 .

This double inertial safety system comprises a first reversible inertial system, which comprises a first inertial mass which blocks the transmission lever temporarily, and a second irreversible security system which comprises a second inertial mass which blocks the transmission lever irreversibly, thus avoiding a possible rebound of the inertial mass.

Although the dual security system described in the document EP-B1-2432954 seems effective, its size makes it hardly compatible with a handle of the flush type.

Indeed, the kinematics of a handle of the flush type has a large size, and requires a small footprint of the inertial safety system.

• un châssis qui est adapté pour être fixé sur l'ouvrant,
• un levier de préhension qui comprend un élément de préhension, le levier de préhension étant monté mobile en rotation par rapport au châssis autour d'un premier axe de rotation, entre au moins une position de repos dans laquelle l'élément de préhension affleure une face externe de l'ouvrant, une position active dans laquelle l'élément de préhension fait saillie par rapport à la face externe de l'ouvrant et une position d'ouverture dans laquelle le levier de préhension déverrouille l'ouvrant,
• un levier de transmission qui délimite une première face de blocage et une seconde face de blocage, et qui est monté pivotant par rapport au châssis autour d'un second axe de rotation perpendiculaire au premier axe de rotation du levier de préhension, entre une position de repos et une position d'actionnement dans laquelle le levier de transmission actionne l'ouverture d'un verrou de l'ouvrant, le levier de transmission étant entraîné en rotation par le levier de préhension, et

caractérisé en ce qu'il comporte :

• un premier système de sécurité inertiel réversible qui est monté sur le châssis et qui comporte un premier balancier portant une première masse d'inertie, premier balancier qui comporte un premier doigt de blocage et qui est monté pivotant autour d'un troisième axe de pivotement sensiblement perpendiculaire au second axe de rotation du levier de transmission, entre une position de repos et une position de blocage dans laquelle le premier doigt de blocage empêche la rotation du levier de transmission, en cas de choc,
• un second système de sécurité inertiel irréversible qui est monté sur le châssis et qui comporte un second balancier portant une seconde masse d'inertie, second balancier qui comporte un second doigt de blocage et qui est monté pivotant autour d'un quatrième axe de pivotement sensiblement parallèle au troisième axe de pivotement du premier balancier, entre une position de repos et une position de blocage dans laquelle le second doigt de blocage empêche la rotation du levier de transmission, en cas de choc.

The present invention aims in particular to solve this drawback and relates to this to a locking system for a motor vehicle opening, the system comprising an opening which extends longitudinally in a vertical plane, from a front edge to a rear edge, and a flush-type handle comprising at least:

• a chassis that is adapted to be fixed on the opening,
• a gripping lever which comprises a gripping element, the gripping lever being rotatably mounted relative to the frame about a first axis of rotation, between at least one rest position in which the gripping element is flush with a face external of the opening, an active position in which the gripping element protrudes relative to the outer face of the opening and an open position in which the gripping lever unlocks the opening,
• a transmission lever which delimits a first locking face and a second locking face, and which is pivotally mounted relative to the frame about a second axis of rotation perpendicular to the first axis of rotation of the gripping lever, between a position of rest and an actuating position in which the transmission lever actuates the opening of a bolt of the opening, the transmission lever being rotated by the lever for gripping, and

characterized in that it comprises:

• a first reversible inertial safety system which is mounted on the chassis and which comprises a first rocker carrying a first mass of inertia, the first rocker which comprises a first locking finger and which is pivotally mounted about a third pivot axis substantially perpendicular to the second axis of rotation of the transmission lever, between a rest position and a locking position in which the first locking finger prevents rotation of the transmission lever, in case of impact,
• a second irreversible inertial safety system which is mounted on the chassis and which comprises a second balance bearing a second mass of inertia, second balance which comprises a second locking finger and which is pivotally mounted about a fourth pivot axis substantially parallel to the third axis of pivoting of the first beam, between a rest position and a locking position in which the second locking finger prevents the rotation of the transmission lever, in case of impact.

Advantageously, the system according to the invention comprises a first reversible safety system and a second irreversible security system which act independently each on an element of the kinematic chain of the opening of the opening, more particularly on the lever of transmission.

In addition, the orientation of the pivot axes of the rockers of each safety system and the orientation of the axis of rotation of the transmission lever allow a compact arrangement of the system according to the invention, which is adapted to a handle of the type flush.

Indeed, a handle of the flush type comprises an actuator for driving the gripping lever, which limits the space available for security systems.

According to another characteristic, the third pivot axis of the first balance and the fourth pivot axis of the second balance are substantially parallel in a vertical direction.

According to another characteristic, the axis of rotation of the transmission lever extends transversely, perpendicularly to the vertical axis of rotation of the gripping lever.

According to another feature, the first rocker is driven from its rest position to its blocking position when the acceleration of the first mass of inertia is in a first range of values, in case of shock, and the second rocker is driven from its rest position to its blocking position when the acceleration of the second mass of inertia is within a second range of values, in case of shock.

This feature allows security systems to respond to a wide range of acceleration values independently of each other.

According to another characteristic, the gripping element is delimited longitudinally by a front end which is arranged opposite a central zone of the opening, and a rear end, the first mass of inertia and the second mass of inertia. being each arranged longitudinally in front of the front end of the gripping element.

This characteristic makes it possible to limit the size of the system according to the invention.

In addition, the position of the masses of inertia in front of the gripping element makes it possible to approach each security system towards the center of the opening to make each security system more responsive.

More particularly, the axis of rotation of the gripping lever extends generally vertically to the front of the front end of the gripping element, the masses of inertia being arranged longitudinally in front of the axis of rotation. of the handle lever.

According to another characteristic, each mass of inertia is arranged longitudinally between a central zone of the opening and the axis of rotation of the gripping lever.

The invention also relates to a door handle adapted to equip a locking system according to any one of the preceding claims.

• la figure 1 est une vue schématique en perspective qui illustre une poignée et un ouvrant de véhicule automobile appartenant au système de verrouillage selon l'invention ;
• la figure 2 est une vue de face qui illustre le levier de préhension de la poignée de la figure 1 dans sa position de repos et un premier système de sécurité inertiel, avec le châssis de la poignée ;
• la figure 3 est une vue de dos qui illustre le levier de transmission dans sa position de repos, avec le châssis ;
• la figure 4 est une vue en perspective qui illustre l'élément de préhension dans sa position de repos dans laquelle l'élément de préhension affleure une face externe de l'ouvrant ;
• la figure 5 est une vue en perspective qui illustre l'élément de préhension dans sa position active dans laquelle l'élément de préhension fait saillie par rapport à la face externe de l'ouvrant ;
• la figure 6 est une vue en perspective qui illustre l'élément de préhension dans une position d'ouverture dans laquelle le levier de préhension déverrouille l'ouvrant ;
• la figure 7 est une vue de détail en perspective qui illustre le levier de transmission en cours de pivotement ;
• la figure 8 est une vue de détail en perspective qui illustre le balancier du premier système de sécurité dans sa position de repos et le levier de transmission dans sa position de repos ;
• la figure 9 est une vue de détail en perspective qui illustre le balancier du premier système de sécurité dans sa position de repos et le levier de transmission dans sa position de d'actionnement ;
• la figure 10 est une vue de détail en perspective qui illustre le balancier du premier système de sécurité dans sa position de blocage et le levier de transmission dans sa position de repos ;
• la figure 11 est une vue de détail en perspective qui illustre le balancier du premier système de sécurité dans sa position de blocage et le levier de transmission dans une position bloquée ;
• la figure 12 est une vue de détail en perspective et en coupe longitudinale qui illustre le balancier du premier système de sécurité ;
• la figure 13 est une vue de détail en perspective qui illustre le balancier du premier système de sécurité ;
• la figure 14 est une vue de détail en perspective qui illustre le second balancier du second système de sécurité dans sa position de repos et le levier de transmission dans sa position d'actionnement ;
• la figure 15 est une vue de détail en perspective qui illustre le balancier du second système de sécurité dans sa position de blocage et le levier de transmission dans sa position de repos ;
• la figure 16 est une vue de détail en perspective qui illustre le balancier du second système de sécurité dans sa position de blocage et le levier de transmission dans une position bloquée.

Other features and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:

• the figure 1 is a schematic perspective view which illustrates a handle and a motor vehicle opening part belonging to the locking system according to the invention;
• the figure 2 is a front view that illustrates the grip lever of the handle of the figure 1 in its rest position and a first inertial safety system, with the frame of the handle;
• the figure 3 is a back view that illustrates the transmission lever in its rest position, with the chassis;
• the figure 4 is a perspective view which illustrates the gripping element in its rest position in which the gripping element is flush with an outer face of the opening;
• the figure 5 is a perspective view which illustrates the gripping element in its active position in which the gripping element protrudes relative to the outer face of the opening;
• the figure 6 is a perspective view which illustrates the gripping element in an open position in which the gripping lever unlocks the opening;
• the figure 7 is a perspective detail view illustrating the transmission lever being pivoted;
• the figure 8 is a detailed perspective view which illustrates the balance of the first security system in its rest position and the transmission lever in its rest position;
• the figure 9 is a detailed perspective view which illustrates the balance of the first safety system in its rest position and the transmission lever in its actuating position;
• the figure 10 is a detailed perspective view which illustrates the balance of the first security system in its locking position and the transmission lever in its rest position;
• the figure 11 is a detailed perspective view which illustrates the balance of the first security system in its locking position and the transmission lever in a locked position;
• the figure 12 is a detail view in perspective and in longitudinal section which illustrates the balance of the first security system;
• the figure 13 is a detailed perspective view that illustrates the balance of the first security system;
• the figure 14 is a detailed perspective view which illustrates the second balance of the second safety system in its rest position and the transmission lever in its actuating position;
• the figure 15 is a detailed perspective view which illustrates the balance of the second safety system in its locking position and the transmission lever in its rest position;
• the figure 16 is a detail view in perspective which illustrates the balance of the second security system in its locking position and the transmission lever in a locked position.

In this application, the terms "up", "down", "upper", "lower", "horizontal", "vertical", and their derivatives refer to the position or orientation of an element or 'a component, this position or this orientation being considered when the vehicle is in service configuration on a horizontal ground.

Moreover, to clarify the description and the claims, the longitudinal, vertical and transverse terminology will be adopted in a nonlimiting manner with reference to the L, V, T trihedron indicated in the figures.

In all of these figures, identical or similar references represent identical or similar organs or sets of members.

Note that in the present patent application, the terms "front" and "rear" must be understood in relation to the longitudinal general direction of the vehicle, that is to say from the left to the right of the figure 1 .

We have shown figure 1 a motor vehicle 10 which is equipped with a locking system 12 for opening, according to the invention.

The locking system 12 comprises an opening 14 which extends longitudinally, in a vertical plane, from a front edge 16 to a rear edge 18, the opening 14 comprising a central zone 20 which is interposed longitudinally between the front edge 16 and the rear edge 18.

The opening 14 is delimited by an outer face 22 covering which is arranged outside the vehicle.

Also, the opening 14 is pivotally mounted between a closed position, illustrated in FIG. figure 1 , and an open position, about an opening axis A which extends vertically, in the vicinity of the front edge 16 of the opening 14.

With reference to figures 2 and 3 , the locking system 12 comprises a handle 24 which comprises a frame 26, a mechanism for opening a lock 36 of the opening 14, a first reversible inertial safety system 28 and a second inertial safety system 72 irreversible which each aim to prevent the accidental opening of the opening 14 in the event of violent impact of the vehicle 10 against an obstacle.

The frame 26 has the overall shape of a plate which extends in the plane of the opening 14 and which is fixed on a structure (not shown) of the opening by screws (not shown) for example.

The latch opening mechanism 36 comprises a gripping lever 30, a gripping element 32 and a transmission lever 34.

The gripping lever 30 is rotatably mounted relative to the frame 26 about a first axis B of vertical rotation, between a rest position illustrated in FIGS. Figures 2 to 4 in which the gripping element 32 flush with the outer face 22 of the opening 14, an active position illustrated in FIG. figure 5 in which the gripping element 32 protrudes from the outer face 22 of the opening 14 to be pivotable by a user, and an open position illustrated in FIG. figure 6 in which the gripping lever 30 actuates the latch to unlock the sash 14.

Additionally, the opening mechanism comprises an actuator 35, visible at the figure 4 which is adapted to pivotably drive the gripping lever 30 between its rest position and its active position.

The gripping lever 30 is resiliently biased towards its rest position by a helical spring 38 which extends vertically about the axis B of rotation of the gripping lever 30, and which is connected to the frame 26.

The gripping member 32 is adapted to allow a user to operate the gripping lever 30.

For this purpose, as can be seen in figure 1 , the gripping element 32 is arranged on an external side of the opening 14, in a housing 40 formed by the outer face 22 of the opening 14, the gripping element 32 being integral with the gripping lever 30 for driving the gripping lever 30 in rotation when the user actuates the gripping element 32.

The gripping member 32 has an elongated handle shape that extends longitudinally from a front end 42 to its rear end 44.

It will be noted that the gripping element 32 is represented without its covering cap on the figures 2 , and 4 to 6 , trim cover which is flush with the outer face 22 of the opening when the handle lever 30 is in its rest position.

Also, the gripping lever 30 is arranged to drive the transmission lever 34 in movement in order to actuate the opening of the bolt of the opening 14.

For this purpose, the transmission lever 34 is pivotally mounted relative to the frame 26 about a second axis C of transverse rotation, between a rest position illustrated in FIGS. Figures 2 to 4 , and an actuating position illustrated at figure 6 , in which the transmission lever 34 actuates the opening of the bolt of the opening 14.

In addition, with reference to the figure 7 , the front end 48 of the gripping lever 30 delimits a cam 50 which has a profile 51 generally in the shape of a spherical portion.

Complementarily, the rear end 52 of the transmission lever 34 comprises a follower 54 delimiting a bearing face 56 which extends transversely opposite the cam 50.

The cam 50 and the follower 54 are arranged to transform the rotational movement of the gripping lever 30 about its vertical axis B, in a rotational movement of the actuating lever 34 about its transverse axis C.

The handle 24 is a handle of the flush type, also called "flush" handle according to the English name, that is to say that the gripping element 32 is flush with the outer face 22 of the opening 14 and visually merges with the outer face 22 of the opening 14 when the gripping lever 30 is in its rest position.

This type of handle 24 is described in the document EP-A1-3106596 which should be referred to for more details.

In another aspect, the first reversible inertial safety system 28 comprises a first rocker 58 shown in detail in FIGS. Figures 12 and 13 , which extends longitudinally from a rear end 60, to a front end 62 which carries a first mass of inertia 64.

The front end 62 of the first rocker 58 comprises a first locking finger 66 which protrudes longitudinally forwards and delimits a first locking face 67 extending radially and perpendicularly to the axis D of rotation of the rocker arm 58.

The first blocking face 67 of the first rocker 58 is designed to cooperate with a first blocking face 68 delimited by the transmission lever 34, which extends generally parallel to the blocking face 67 of the rocker 58, to oppose the rotation of the transmission lever 34 from its rest position to its actuated position, in the event of impact of the vehicle, as can be seen in FIG. figure 11 .

For this purpose, the first rocker 58 is pivotally mounted about the third axis D of vertical rotation, between a rest position illustrated in FIGS. Figures 8 and 9 , and a blocking position illustrated to figures 10 and 11 , in which the first locking finger 66 of the first rocker 58 is positioned in the path of the transmission lever 34, so that the first locking face 68 of the transmission lever 34 strikes the first locking pin 66 of the first rocker arm 58 to prevent the rotation of the transmission lever 34, so as to block the opening of the opening 14.

The axis D of rotation of the first rocker 58 is interposed between the rear end 60 and the front end 62 of the first rocker 58.

The first inertial safety system 28 is a reversible system, that is to say that the first rocker 58 occupies its blocking position temporarily, to allow the opening of the opening 14 in a short time following the actuation of the first inertial safety system 28.

For this purpose, with reference to figure 12 , the first rocker 58 is equipped with a helical spring 70 which extends around the axis D of rotation of the first rocker 58 and which cooperates with the frame to resiliently return the first rocker 58 from its locking position to its position rest.

Thus, the first rocker arm 58 is resiliently biased back to its initial rest position when the acceleration applied to the first rocker arm 58 returns to zero.

The first rocker 58 is designed to be driven from its rest position to its blocking position when the acceleration of the first mass of inertia 64 is in a first range of values between 5G and 15G for example, acceleration unit G equaling 9.80665 m · s ^-2 .

The first inertial safety system 28 is very responsive and fast to pass into a blocking position.

According to another aspect of the invention, the first mass of inertia 64 of the first rocker 58 is arranged longitudinally in front of the front end 42 of the gripping element 32, as can be seen in FIG. figure 2 .

More particularly, the first mass of inertia 64 of the first rocker 58 is arranged longitudinally in front of the axis B of rotation of the gripping lever 30, the axis B of rotation of the gripping lever 30 being arranged in front of the front end 42 of the gripping element 32.

In general, with reference to the figure 1 , the first mass of inertia 64 is arranged longitudinally between the central zone 20 of the opening 14 and the axis of rotation B of the gripping lever 30.

Indeed, it is found that at the violent shock of the vehicle against an obstacle, the central zone 20 of the opening 14 deforms with more velocity than the periphery of the opening 14, due to the greater flexibility of the central zone 20 of the opening 14 relative to the periphery of the opening 14.

Thus, the more the first mass of inertia 64 of the first inertial safety system 28 is arranged close to the central zone 20 of the opening 14, the more the first inertial safety system 28 is reactive to block the opening of the mechanism. opening of the opening 14.

With reference to figures 3 , 14, 15, 16 , the second irreversible inertial safety system 72 comprises a second rocker arm 74 which extends longitudinally from a rear end 76, to a front end 78 which carries a second mass of inertia 80.

The front end 78 of the second beam 74 comprises a second locking finger 82 which protrudes longitudinally forwards and which delimits a second locking face 84 extending radially and perpendicularly to the axis E of rotation of the second beam 74. .

The second locking face 84 of the second rocker arm 74 is designed to cooperate with a second locking face 86 delimited by the transmission lever 34, which extends generally parallel to the second locking face 84 of the second rocker arm 74, for to oppose the rotation of the transmission lever 34 from its rest position to its actuated position, in the event of impact of the vehicle, as can be seen in FIG. figure 16 .

For this purpose, the second rocker arm 74 is pivotally mounted about the fourth pivot axis E substantially parallel to the third pivot axis D of the first rocker arm 58, between a rest position illustrated in FIG. figure 14 , in which the second locking finger 82 is spaced from the path of the transmission lever 34, and a blocking position illustrated in FIGS. Figures 15 and 16 in which the second locking finger 82 is positioned in the path of the transmission lever 34, so that the second locking face 86 of the transmission lever 34 strikes the second locking finger 82 to prevent rotation of the transmission lever 34 , so as to block the opening of the opening 14.

The second inertial safety system 74 is equipped with a helical spring 88 which extends around the fourth axis E and which elastically connects the frame 26 to the second rocker 74 to elastically constrain the second rocker 74 in its rest position.

The spring 88 is calibrated so as to allow the pivoting of the second rocker 74 from an acceleration limit value applied to the second rocker 74 during an impact.

More particularly, the second rocker 74 is designed to be driven from its rest position to its blocking position when the acceleration of the second mass of inertia 80 is in a second range of values from 30G, by example.

Also, it will be noted that the axis E of rotation of the second beam 74 is arranged in the vicinity of the rear end 76 of the second beam 74.

The second inertial safety system 72 is an irreversible system, that is to say that the second rocker 74 occupies its blocking position permanently, to prevent a possible rebound of the second beam 74 from its locking position to its position rest.

For this purpose, with reference to figure 14 , the second inertial system 72 comprises a locking blade 90 which extends longitudinally from a front end 92 which is connected to the frame 26 (visible at the figure 3 ), to a rear free end 94.

The rear free end 94 of the locking blade 90 delimits a light 96.

In a complementary manner, the second rocker 74 comprises a lug 98 which protrudes perpendicularly to the pivot axis E of the second rocker arm 74.

The lug 98 is designed, during the pivoting of the second beam 74, to push the locking blade 90 to penetrate through the slot 96 in a locking position in which the lug 98 cooperates with an edge of the light 96 to retain the second rocker 74 in its blocking position, as can be seen at Figures 15 and 16 .

According to another aspect of the invention, the second mass of inertia 80 of the second beam 74 is arranged longitudinally in front of the front end 42 of the gripping element 32, as can be seen in FIG. figure 4 .

More particularly, the second mass of inertia 80 of the second beam 74 is arranged longitudinally in front of the axis B of rotation of the gripping lever 30, the axis B of rotation of the gripping lever 30 being arranged in front of the front end 42 of the gripping element 32.

In general, with reference to the figure 1 , the second mass of inertia 80 is arranged longitudinally between the central zone 20 of the opening 14 and the axis of rotation B of the gripping lever 30, for the same reasons as those mentioned above concerning the first mass of inertia 64 .

The present description of the invention is given by way of non-limiting example.

It will be understood that simple mechanical inversions are covered by the invention.

For example, the first rocker arm 58 and / or the second rocker arm 74 can indifferently block the rotation of the gripping lever 30, or the rotation of the transmission lever 34, or any other element of the driveline opening opening chain. 14.

It will be noted that the axis D of rotation of the first rocker 58, the axis B of rotation of the gripping lever 30 and the axis E of rotation of the second rocker 74 are all three parallel and perpendicular to the axis C of rotation transmission lever 34. Advantageously, the locking system 12 according to the invention proposes a compact arrangement which makes it possible to propose a handle of the flush type equipped with an actuator 35 as well as a first inertial safety system and a second safety system. inertial safety.

Claims (8)

Locking system (12) for a motor vehicle door (10), the system (12) comprising an opening (14) extending longitudinally in a vertical plane from a front edge (16) to a rear edge (18), and a handle (24) of the flush type comprising at least: a frame (26) which is adapted to be fixed on the opening (14), - A gripping lever (30) which comprises a gripping member (32), the gripping lever (30) being rotatably mounted relative to the frame (26) about a first axis (B) of rotation, between at least one rest position in which the gripping element (32) is flush with an outer face (22) of the opening (14), an active position in which the gripping element (32) projects relative to the outer face (22) of the leaf (14) and an open position in which the gripping lever (30) unlocks the leaf (14), - a transmission lever (34) defining a first locking face (67) and a second locking face (84), and which is pivotally mounted relative to the frame (26) about a second axis (C) of rotation perpendicular to the first axis (B) of rotation of the gripping lever (30), between a rest position and an actuating position in which the transmission lever (34) actuates the opening of a bolt of the sash (14), the transmission lever (34) being rotated by the gripping lever (30), and characterized in that it comprises: - A first reversible inertial safety system (28) which is mounted on the frame (26) and which comprises a first beam (58) carrying a first mass of inertia (64), first balance (58) which comprises a first finger blocking member (66) which is pivotally mounted about a third pivot axis (D) substantially perpendicular to the second axis (C) of rotation of the transmission lever (34) between a rest position and a locking position in which the first locking finger (66) prevents the rotation of the transmission lever (30), in case of impact, - A second irreversible inertial safety system (72) which is mounted on the frame (26) and which comprises a second balance (74) carrying a second mass of inertia (80), second balance (74) which comprises a second locking finger (82) and which is pivotally mounted about a fourth pivot axis (E) substantially parallel to the third pivot axis (D) of the first rocker arm (58), between a rest position and a locking position in which the second locking finger (82) prevents the rotation of the transmission lever (30), in case of impact. Locking system (12) according to claim 1, characterized in that the third axis (D) of pivoting of the first rocker (58) and the fourth axis (E) of pivoting of the second rocker (74) are substantially parallel in one direction vertical. Locking system (12) according to any one of the preceding claims, characterized in that the axis (C) of rotation of the transmission lever (34) extends transversely perpendicular to the axis (B) of vertical rotation of the gripping lever (30). Locking system (12) according to any one of the preceding claims, characterized in that the first rocker (58) is driven from its rest position to its locking position when the acceleration of the first mass of inertia (64) is in a first range of values, in the event of an impact, and the second beam (74) is driven from its rest position to its blocking position when the acceleration of the second mass of inertia ( 80) is within a second range of values, in the event of an impact. Locking system (12) according to any one of the preceding claims, characterized in that the gripping element (32) is delimited longitudinally by a front end (42) which is arranged facing a central zone (20) of the opening (14), and a rear end (44), the first mass of inertia (64) and the second mass of inertia (80) being each arranged longitudinally in front of the front end (42) of the gripping element (32). Locking system (12) according to claim 5, characterized in that the axis (B) of rotation of the gripping lever (30) extends generally vertically to the front of the front end (42) of the gripping element (32), the masses of inertia (64), (80) being arranged longitudinally in front of the axis (B) of rotation of the gripping lever (30). Locking system (12) according to any one of the preceding claims, characterized in that each mass of inertia (64), (80) is arranged longitudinally between a central zone (20) of the opening (14) and the axis (B) of rotation of the gripping lever (30). Door handle (24) adapted to equip a locking system (12) according to any one of the preceding claims.

Images