FR2789427A1 - MOTOR VEHICLE HANDLE - Google Patents

Abstract

The invention relates to a handle for a motor vehicle opening, of the type comprising a pallet (14) which controls a lock by means of an articulated return (22), and of the type in which a detection device is provided. of the movement of the pallet (14) comprising a switch controlled by a lever, characterized in that the lever (28) is resiliently biased towards an active position, in that, in the rest position, the articulated return (22) maintains the lever (28) in the inactive position, and in that, when the return (22) is brought to its open position, the lever (28) moves to its active position.

Description

The invention relates to a handle for a motor vehicle. The invention

  relates more particularly to a control handle of a motor vehicle door, of the type in which the handle comprises a control pallet which is intended to be moved by a user from a rest position to an open position, the movement of the pallet being transmitted to a lock via a linkage comprising an articulated return io which moves with the pallet from a rest position to an open position, and of the type in which it is provided a pallet displacement detection device comprising a switch which is controlled by the pallet

  through a transmission mechanism.

  There are many applications in which a switch is used to detect the fact that a user is manipulating the palette in an attempt to open

  the opening on which the handle is arranged.

  One of these applications relates to the case where the locking and unlocking of a security system which ensures the locking of the opening is subject to a remote interrogation, by a central anti-theft system of the vehicle, of a badge of the radio frequency type worn. by the user. In such a system, before triggering the unlocking, the anti-theft control unit emits an interrogation signal and waits in return for a coded response signal emitted by the badge. The anti-theft control unit compares the response signal received with a predetermined signal and, in the event of a match, triggers the unlocking of the lock at this time so that, by bringing the handle palette to its open position,

  the user, duly authorized, can then open the door.

  Such a security system, which overcomes the use of a key or a remote control, is often

  called "hands-free access system".

  In such an application, the procedure for exchanging data between the anti-theft control unit and the identification badge, the step of recognizing the response signal, then the effective operation of unlocking the lock requires a certain time. However, for great comfort in using such a security system, it is important that the authorized user can open the door as soon as he has brought the palette of the handle to its open position. Also, for this purpose, it is necessary that the identification procedure can be triggered as soon as possible from the moment when, by moving the pallet, the user manifests his desire to open

Opening it.

  The object of the invention is therefore to propose a new design of a handle which makes it possible to cause actuation of the trigger switch for the identification procedure as quickly as possible from the moment when the pallet begins to be moved, this device should in no case limit the travel of the pallet towards its open position, so that it can control a mechanical type lock, and the device

  which should also be reliable and simple to manufacture.

  To this end, the invention provides a control handle for a motor vehicle window, of the type in which the handle includes a control pallet which is intended to be moved by a user from a rest position to a position opening, the movement of the pallet being transmitted to a lock by means of a linkage comprising an articulated return which moves with the pallet from a rest position to an open position, and of the type in which is provided with a device for detecting the movement of the pallet comprising a switch which is controlled by the pallet by means of a transmission mechanism, characterized in that the transmission mechanism comprises a lever which is movable between two positions inactive and active which correspond to two different states of the switch, in that the lever is biased by first elastic means in the direction of its p active position, in that the articulated return, when in the rest position, forms a stop which keeps the lever in the inactive position, and in that, when the return is brought with the pallet to its open position , the lever moves to its active position under the action of elastic means which keep it in abutment against the return to an intermediate position of the latter for which the lever

reaches its active position.

  According to other features of the invention - the lever is a pivoting lever; - The lever is pivotally mounted around the articulation axis of the return, and the direction of rotation of the lever from its inactive position to its active position is the same as that of the return from its rest position to its open position ; - The articulated gear is biased towards its rest position by second elastic return means which exert on the return a return torque greater than the torque exerted on the return by the lever due to the action of the first elastic return means; - The second elastic means which recall the return to its rest position simultaneously ensure, by means of the return, the elastic return of the pallet to its rest position; - The return comprises a rod which extends axially along the articulation axis of the return and which comprises, at a first axial end, a control arm which cooperates with the pallet and, at the opposite axial end, an arm actuation which cooperates with the lever as long as the position of the return is between its rest position and its intermediate position; the second elastic return means consist of a helical spring with angular action which is 0o wound around the rod of the return and which comprises a first radial strand bearing on the control arm of the return and a second radial strand which is in support against a fixed support of the handle; - during assembly of the handle, the second radial strand of the return spring of the return can be engaged in abutment against a support surface provided on the actuating arm of the return to keep the spring constrained without '' there is no recall action on the return; - The reference comprises two parts, a first of which carries the control arm and the second of which carries the actuation arm, the rod is formed of a shaft which belongs to one of the parts and which is received axially in a tubular sheath belonging to the other of the parts, means are provided for rotationally coupling the shaft with the sheath when the sheath and the shaft are in a mounted relative position, and in an intermediate axial position of the shaft by relative to the sheath, the coupling means are decoupled so as to allow a relative rotation of

the tree in relation to the scabbard.

  Other characteristics 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: - Figures 1 and 2 are perspective views illustrating a handle according to the teachings of the invention, the pallet of this handle being illustrated respectively in the rest position and in open position; - Figure 3 is an exploded perspective detail view illustrating the articulated reference linkage io control of the lock and the actuating lever of the switch; - Figures 4 to 6 are schematic views along the axis of rotation of the articulated gear which illustrate the operation of the system, the gear being respectively shown in the rest position, in the intermediate position and in the open position; - Figures 7 to 9 are perspective views illustrating the mounting of the second return means, on the articulated return in two parts, which makes it possible to prestress the second elastic return means before mounting the return on the handle; - Figures 10 and 11 are top views illustrating

  blocking in rotation of the two parts of the return, respectively

  in an intermediate mounting position and in the mounted position;

  - Figure 12 is a sectional view along line 12-

  12 of FIG. 11 illustrating the means for coupling in rotation of the two parts of the articulated return; and - Figure 13 is a partial perspective view illustrating the release of the second radial arm of the second elastic return means in order to bear against the housing of the handle so that the elastic return means

  exert their recall pressure on the return.

  FIG. 1 shows a handle 10 for a motor vehicle opening element which essentially comprises a handle support 12, intended to be arranged on the inside of a body panel of the opening element, and a palette of control 14 which is intended to be arranged outside the body panel to be able to be brought by a user from a rest position, illustrated in

  Figure 1, in an open position, illustrated in Figure 2.

  In the exemplary embodiment illustrated, the control pallet is produced in the form of a control bar 14 which extends in a longitudinal direction and

  which is articulated by its front end 16 on the support 12.

  To facilitate understanding of the text, the concepts of "horizontal" and "vertical" as they appear in FIGS. 1 and 2 will be defined by convention, the longitudinal direction of the control paddle 14 therefore corresponding to the horizontal direction. et.la vertical direction being represented by the axis A1 of pivoting of the control paddle 14 relative to the support 12, this axis A1 being generally parallel to the body panel of the opening. Thus, as can be seen in particular in Figure 2, when the control paddle 14 is brought to its open position, its rear longitudinal end 18 shifts transversely outwardly relative to the support 12 which remains fixed. The rear end 18 of the control pallet 14 drives, by means of a pin 20, an articulated return 22 which is part of a linkage by which the control pallet 14 can act on a lock which ensures the maintenance of the sash in the closed position. The articulated return 22 is articulated on the support 12 around a longitudinal axis A2. Thus, when the control paddle 14 is brought from its rest position to its open position, the articulated return 22 also pivots, around the axis A2, from a rest position illustrated in FIG. 1 until in an open position illustrated in Figure 2. The rest of the linkage that allows the control of the door lock is not

illustrated in the figures.

  As will be described in more detail below, the articulated return 22 is resiliently recalled by a spring

  helical with angular action 24 towards its rest position.

  Advantageously, this spring 24 is dimensioned so that, returning to its rest position, the articulated return 22 automatically returns the control paddle 14 to its rest position, by means of the pin 20,

  as soon as the user releases the control paddle 14.

  According to the invention, the handle 10 also comprises a switch 50 (illustrated in FIGS. 4 to 6) which is for example arranged inside a housing 26 forming part of the support 12 of the handle and which is intended to be operated between a state

  open and closed by a lever 28.

  In the embodiment illustrated in the figures, the lever 28 is a lever which is pivotally mounted on the support 12 around the axis A2 of rotation of the articulated gear 22, in the

  longitudinal extension and in front of it.

  The lever 28 is thus capable of pivoting from an inactive position, illustrated in FIG. 1, to an active position, illustrated in FIG. 2, and it is biased towards the latter.

  position by a helical spring with angular action 30.

  As can be seen more particularly in FIG. 3, the articulated gear 22 essentially comprises a rod 32 which extends longitudinally along the axis of articulation of the gear. The rod 32 has, at a longitudinal end

  rear, a control arm 34 which extends perpendicular-

  ment to the axis A2 and which in particular comprises means 36 for hooking the linkage and means 38 for cooperating with the pin 20 of the control paddle 14. At its front end, the rod 32 is provided with an arm actuator 40 comprising in particular a retaining lug 42 which extends axially forward and which is intended to cooperate with the

  lever 28 for actuating the switch 50.

  Indeed, the lever 28 essentially comprises a tubular drum 44 of axis A2 which is provided at its rear end with a control finger 46, intended to cooperate with the axial lug 42 of the actuating arm 40 of the return 22, and an actuating finger 48 intended to cooperate with the switch 50. The control finger 46 and the actuating finger 48 are arranged in the same transverse plane but they extend diametrically opposite from each other by

relative to axis A2.

  The operation of the positive actuation device of the switch is more particularly illustrated in FIGS. 4 to 6 which are schematic views along the axis A2, in

looking from front to back.

  In Figure 4, the device is illustrated when the handle

  is at rest, that is to say when no one acts on it.

  The articulated return 22 then occupies its rest position, as does the control paddle 14, the rear end of which can be seen 18. In this case, it can be seen that the lever 28 is in its inactive position in which it does not exert no action on the switch 50 which is for example then in an open state. However, the lever 28 is biased by the spring 30 so as to have a tendency to pivot around the axis A2 towards its active position, that is to say counterclockwise when considering FIG. 4. However, according to the invention, the control finger 46 of the lever 28 is then in abutment against the retaining lug 42 of the reference 22 so that the lever 28 is thus held by the reference 22 in its inactive position, despite the action of the spring 30. In FIG. 5, the actuating device has been illustrated in an intermediate position, when a user is bringing the control paddle 14 from the handle to its open position. In this intermediate position, it can be seen that the rear end 18 of the control pallet 14 is moved transversely outwards, that is to say to the right by considering FIG. 5, by a certain distance , low. The pallet 14 takes with it, via the control pin 20, the return 22 which i5 pivots around the axis A2, counterclockwise, considering FIG. 5, to an intermediate position. During the movement of the reference 22, the retaining lug 42 thereof pivots about the axis A2 so that the lever 28 can, under the effect of the spring 30, also move by the same angle, its finger 46 remaining in contact with the retaining lug 42. By pivoting around the axis A2, the lever 28 can therefore urge the switch 50 to another state, that is to say by

example a closed state.

  It can be seen that, due to the geometry of the parts and the gear ratios thus obtained, a very slight movement of the control paddle 14 makes it possible to control the switch 50 between its two states. Thus, as soon as the user begins to manipulate the control paddle 14, the switch 50 is able to control the triggering, for example, of an identification procedure

  a badge worn by the user.

  According to the invention, it can be seen in FIG. 6 that, once the switch 50 has been triggered, the user can continue the opening movement of the control paddle 14 which causes with it the continued pivoting of the articulated return 22 around of axis A2. On the contrary, it can be seen that the lever 28 then remains in its active position which it has reached from the figure, the retaining lug 42 and the control finger 46 of the lever 28 then no longer being in contact with one the other. In this way, the device makes it possible to control a switch 50 0o having a very small actuating stroke, without in any way limiting the angular stroke of the reference 22 and therefore of the control paddle 14 between their rest position and their

open position.

  In the opposite direction, when the user releases the control paddle 14, the articulated return 22 is returned to its rest position by the spring 24 and the return 22 returns the control paddle 14 in this way by means of the pin. control 20. When the return 22 reaches its intermediate position, its retaining lug 42 comes into contact with the control finger 46 of the lever 28 and, when the return 22 continues its return to its rest position, the lug retainer 42 causes the lever 28 to pivot again towards its inactive position, contrary to the action of the spring 30, which causes a new change of state of

The switch 50.

  In the case where the entire return force 22 is provided by the spring 24, it is necessary to ensure that the latter exerts on the return 22 a return torque greater than the torque exerted on the return 22 speak

  lever 28 which is biased in the opposite direction by the spring 30.

  According to another aspect of the invention, the handle 10 comprises means which make it possible to simplify its assembly, and which in particular make it possible to prevent the action of the return spring 24 of the reference 22 from hampering the assembly operations. To this end, and as can be seen in particular in FIG. 7, the articulated reference 22 comprises two front parts 52

and rear 54.

  The front part 52 comprises a tubular cylindrical sheath 56 of revolution of axis A2 at the front end of which is arranged the actuating arm 40 which carries the lug of io retained 42. The rear part 54 comprises a cylindrical shaft 58 d axis A2 which is intended to be received inside the tubular sheath 56 of the front part, and which carries at its end

  rear the control arm 34 of the reference 22.

  When the two parts 52, 54 are assembled, the shaft 58 is received in the sheath 56 which then forms the rod 32 connecting the two arms 34, 40 of the reference 22. As is more particularly visible in FIG. 12, the two parts 52, 54 are provided with a tenon and mortise system 68 which is arranged at the front end of the shaft 58 and of the sleeve 56, and which allows, when the two parts are assembled axially one in the other, to ensure the coupling in rotation around the axis A2 of the two parts

52, 54.

  However, as long as the shaft 58 is not engaged axially-

  lying completely at the bottom of the sleeve 56, the two parts 52, 54 are free to rotate in rotation, one with respect to

the other around the axis A2.

  The return spring 24 of the reference 22 is constituted by a helical spring with angular action which is wound around the sheath 56, and therefore around the rod 32, and which comprises a front strand 60 and a rear strand 62 which each extend radially outward at the corresponding axial end of the helical winding. The rear strand 62 is intended to come into abutment against a bearing surface 64 secured to the control arm 34 of the reference 22, that is to say secured to the rear portion 54 thereof. On the contrary, the front strand 60 is intended, when the handle is fully assembled and in working order, to come into abutment against the support 12 of the handle 10. Thus, when the reference 22 pivots about the axis A2, the two strands 60, 62 are angularly displaced one by

  relation to the other, which constrains the spring 24.

  However, to increase the return force of the spring 24, without unduly increasing its dimensions, it is preferable that the latter be prestressed during assembly, that is to say that even when the whole of the handle is in the rest position, it exerts on the reference 22 an already significant force. To achieve this prestressing of the spring 24, without making the assembly of the reference 22 too complex, provision has been made for the front strand 60 of the spring 24 to be pressed against the surface 66 secured to the arm during assembly of the handle. actuation 40 of the part

before 52 of reference 22.

  Advantageously, as shown in FIG. 8, the two strands 60, 62 can be brought to bear against their respective bearing surfaces 66, 64 without the two parts 52, 54 being completely nested axially one in the 'other, that is to say without they are still linked in rotation by the coupling means. In this way, as shown in Figure 8, it is possible to prestress the spring 24 by rotating the two parts 52, 54 relative to each other about the axis A2. When the desired degree of prestressing has been reached, the assembly of the reference 22 is completed by bringing the two parts 52, 54 axially close to it, until they completely fit together

  one inside the other, as shown in FIG. 9.

  However, as can be seen in FIGS. 8 to 11, the two parts 52, 54 of the reference 22 include complementary means which make it possible to prevent, before they are completely made integral in rotation by the system 68 to tenon and mortise, the spring 24 cannot be released. To this end, the shaft 58 of the rear part of the return 22 comprises an external radial lug 70 intended to be engaged in a longitudinal slot 72 which is arranged in the sheath 56 and which opens longitudinally into the end

back of it.

  As can be seen more particularly in FIG. 10, the slot 72 has at least one longitudinal edge 74 which includes a recess 76, in this case formed by an inclined face facing forward. The recess 76 is formed in the edge 74 against which the lug 70 comes to bear under the action of the return spring 24. In this way, once the lug 70 is engaged in the slot axially beyond the recess 76, the latter prevents any rearward withdrawal of the shaft 58 relative to the sheath 56, which prevents

  two parts 52, 54 to separate.

  However, the lug 70 and the slot 72 are not designed to collect all of the torque transmitted by the reference 22, this torque preferably being transmitted by the system 68 to

  tenon and mortise described above.

  As can be seen, this design of the return 22 therefore allows on the one hand to perform in a particularly simple manner the prestressing of the spring 24 and it then allows the mounting of the return 22 on the support 12 without this spring 24 being able to

  disrupt assembly operations.

  Once the reference 22 is mounted on the handle, it is then possible to disengage the front strand 60 of the spring 24 from its bearing surface 66, the latter then coming naturally to bear against the support of the handle 10 as is more particularly shown in Figure 13. As can be seen in Figures 1 and 2, the handle according to the invention is therefore particularly advantageous in that the actuating device of the switch is very compact, especially according to the transverse direction which io corresponds for example to the thickness of the opening, in that it requires a reduced number of parts, and in that it is of a

particularly easy mounting.

Claims (9)

  1. Control handle of a motor vehicle opening, of the type in which the handle (10) comprises a control pallet (14) which is intended to be moved by a user from a rest position to a position d opening, the movement of the pallet (14) being transmitted to a lock via a linkage comprising an articulated return (22) which moves with the pallet (14) from io a rest position to a open position, and of the type in which a device for detecting the movement of the pallet (14) is provided, comprising a switch (50) which is controlled by the pallet (14) by means of a transmission mechanism , characterized in that the transmission mechanism comprises a lever (28) which is movable between two inactive and active positions which correspond to two different states of the switch (50), in that the lever (28) is acted upon by first elastic means es (30) towards its active position, in that the articulated return (22), when in the rest position, forms a stop (42) which keeps the lever (28) in the inactive position, and in this that, when the gear (22) is brought with the pallet (14) to its open position, the lever (28) moves to its active position under the action of elastic means (30) which keep it in abutment the return (22) to an intermediate position of the latter   for which the lever (28) reaches its active position.   2. Handle according to claim 1, characterized in that   that the lever (28) is a pivoting lever.   3. Handle according to claim 2, characterized in that the lever (28) is pivotally mounted about the articulation axis (A2) of the return (22), and in that the direction of rotation of the lever (28) from its inactive position to its active position is the same as that of the reference (22) from its position rest towards its open position.   4. Handle according to any one of the claims   previous, characterized in that the articulated return (22) is biased towards its rest position by second elastic return means (24) which exert on the return (22) a return torque greater than the torque exerted on the return (22 ) by the lever (28) due to the action of the first return means elastic io (30).   5. Handle according to claim 4, characterized in that the second elastic means (24) which recall the gear (22) towards its rest position simultaneously ensure, by means of the gear (22), the elastic return of the   pallet (14) to its rest position.   6. Handle according to any one of the claims   previous, characterized in that the return (22) comprises a rod (32) which extends axially along the articulation axis (A2) of the return (22) and which comprises, at a first axial end, an arm of control (34) which cooperates with the pallet (14), and, at the opposite axial end, an actuating arm (40) which cooperates with the lever (28) as long as the position of the return (22) is between his rest position and his intermediate position.   7. Handle according to claim 6 taken   combination with one of claims 4 or 5,   characterized in that the second elastic return means consist of a helical spring with angular action (24) which is wound around the rod (32) of the return (22) and which has a first radial strand (62) in support on the control arm (34) of the reference (22) and a second radial strand (60) which is pressed against a fixed support (12) of the handle (10). 8. Handle according to claim 7, characterized in that, during assembly of the handle (10), the second radial strand (60) of the return return spring (24) (22) is capable of being engaged bearing against a bearing surface (66) arranged on the actuating arm (40) of the return (22) to keep the spring (24) constrained without it exerting   recall action on removal (22).   9. Handle according to any one of claims 6   to 8, characterized in that the return (22) comprises two parts (52, 54) of which a first (54) carries the control arm (34) and whose second (52) carries the actuation arm (40) , in that the rod (32) is formed of a shaft (58) which belongs to one of the parts and which is received axially in a tubular sheath (56) belonging to the other of the parts, in that means (68, 70, 72) for rotationally coupling the shaft (58) with the sheath (56) are provided when the sheath and the shaft are in a mounted relative position, and in that, in an intermediate axial position of the shaft relative to the sheath, the coupling means (68, 70, 72) are decoupled so as to allow relative rotation of the shaft relative to the sheath.