[0001] The present invention concerns a vehicle door assembly, in particular of the type
with a flushing door handle lever.
[0002] Such vehicle door handle assemblies comprise an electric motor which, when actuated,
moves the handle lever between a flush position and a ready position. In the flush
position, the handle lever is flush with the exterior surface of the door body. In
the ready position, the handle lever is protruding from said exterior surface, so
as to be graspable by a user.
[0003] Once the user grasped the handle lever in its ready position, he can unlatch the
door by pulling the lever in a further protruding unlocking position, in which the
handle door lever interacts (via a Bowden cable, a rotating pin or a gear mechanism)
with a latch mechanism and unlatches the door.
[0004] A handle lever spring brings the handle lever back in its ready position when the
user releases the handle lever. The electric motor may also move the handle lever
from the ready position to the flush position after opening or closing the door.
[0005] Such door handle assemblies also comprise a back-up mechanism, to enable the opening
of the door in case of, for example, electric motor or car battery failure, that is
when the electric motor cannot be actuated. This mechanism comprises for example a
push-push mechanism, in which the user pushes the handle lever inwards from its flushing
position until reaching a clicking position in which a preloaded spring is released.
Said preloaded spring, when released, pushes the handle lever from the inward clicking
position in the protruding ready position. Such a door handle assembly is disclosed
in patent application
DE 10 2014 113 495 A1.
[0006] Once the user accesses the vehicle in back-up mode, the battery will generally be
recharged, and/or the motor failure will be lifted and normal, electric, actuation
can be resumed.
[0007] In normal functioning, the electric motor sets the handle lever in motion via a reduction
mechanism, for example a worm and gear mechanism, which reduces the rotational speed
of the motor actuation while increasing torque value. When the user pushes the lever
from the flushing to the clicking position, said reduction mechanism is actuated in
reverse.
[0008] Another problem arising from the irreversibility of the actuation is observed when
a user opens the door with important speed. In particular, the user pulls on the lever,
which is in open (extended) position, to cause opening of the door. Once the door
panel reaches a sufficiently open position, the user will stop the motion by pushing
on the handle lever to stop the door panel motion.
[0009] This reversal of forces causes the lever to be quickly driven back from open to ready
or flush position. During this motion, the reduction mechanism may be actuated in
reverse, potentially with high movement speed.
[0010] The resulting reverse actuation, in case of non-reversibility due to friction increased
by temperature, may cause the reduction mechanism to deteriorate or even break, thus
potentially compromising the operating of the door handle as a whole, both in manual
back-up and when resuming normal, electrical actuation (e.g. after recharging the
battery or lifting the motor malfunction).
[0011] In order to overcome the aforementioned drawbacks, the present invention has for
object a coupling device for a vehicle door handle, the door handle having a handle
lever movable between a flush position in which it is flush with an exterior door
panel surface and a ready position in which it is protruding and graspable by a user
by an electric motor, and between an inward clicking position in which a preloaded
push-push unit is released so as to bring the handle lever in said ready position
without actuation of the electric motor,
comprising :
- a lever shaft, connected to the handle lever,
- a push-push lever ring, rotatively coupled with the lever shaft, interacting via a
push-push lever with the push-push unit when the handle lever is pushed inwards in
the clicking position so as to release the preloaded push-push unit and push the lever
in ready position,
- a coupling gear, rotatively coupled with the lever shaft, interacting with the electric
motor to move the handle lever from the flush position to the ready position,
wherein the lever shaft is rotatively coupled to the coupling gear via a coupling
mechanism supported by the lever shaft and rotatively linking the lever shaft and
the coupling gear, the coupling mechanism being configured to allow free rotational
movement of the lever shaft with respect to the coupling gear within an angular range
corresponding to the angular distance between the ready position and the clicking
position of the handle lever.
[0012] The relative free rotational movement allows to selectively uncouple the lever and
the reduction stages when the user is pushing said lever in clicking position and
when the push push unit pushes said lever in ready position.
[0013] The coupling device may present one or more of the following characteristics, taken
separately or in combination.
[0014] The lever shaft comprises on an axial portion at least one radial rail, and the coupling
gear comprises at least one circular arc shaped hole housing the radial rail, and
the angular opening of the circular arc shaped hole corresponds to the angular distance
between the ready position and the clicking position of the handle lever.
[0015] The lever shaft comprises on an axial portion two diametrically opposite radial rails,
and the reduction gear comprises two radially opposite circular arc shaped holes in
which the radial rails can move freely between angular positions corresponding to
the ready position and the clicking position of the handle lever.
[0016] The push-push lever is carried by a push-push lever ring form-fitted to a first axial
portion of the lever shaft.
[0017] The lever shaft, the coupling gear and the push-push lever ring are made of moulded
plastic.
[0018] The angular portion of the coupling gear bearing meshing teeth to interact with a
reduction mechanism covers an angular portion of the coupling gear greater than the
sum of the angle from clicking position to ready position and of the angle from flush
position to ready position of the handle lever.
[0019] The angular portion of the coupling gear bearing meshing teeth to interact with a
reduction mechanism covers an angular portion of the coupling gear greater than twice
the angle from clicking position to ready position of the handle lever.
[0020] The invention also relates to the associated door handle, in particular for a vehicle
door, having a handle lever movable between a flush position in which it is flush
with an exterior door panel surface and a ready position in which it is protruding
and graspable by a user by an electric motor, and between an inward clicking position
in which a preloaded push-push unit is released so as to bring the handle lever in
ready position without actuation of the electric motor,
comprising :
- a lever shaft, connected to the handle lever,
- a push-push unit with at least one preloaded spring configured to bring a handle lever
from a clicking position in which the preloaded spring is released in a ready position
without actuation of an electric motor,
- an electric motor and a reduction mechanism to transmit rotational movement from the
motor to the handle lever comprising a coupling gear the rotation of which causes
the lever to rotate,
wherein the lever shaft is rotatively coupled to the coupling gear via a coupling
mechanism supported by the lever shaft and rotatively linking the lever shaft and
the coupling gear, the coupling mechanism being configured to allow free rotational
movement of the lever shaft with respect to the coupling gear within an angular range
corresponding to the angular distance between the ready position and the clicking
position of the handle lever.
[0021] The push-push unit may comprise two preloaded springs pushing, when released, a slider
interacting via a protruding finger with a push-push lever protruding radially from
the handle lever shaft.
[0022] The reduction mechanism may comprise a worm drive interacting with the coupling gear
to set the handle lever in motion when the electric motor is actuated.
[0023] Other characteristics and advantages of the invention will appear at the reading
of the following description, given in an illustrative and not limiting fashion, of
the following figures, among which :
- figure 1 is a schematic cut away of a vehicle door with a handle comprising a handle
lever represented in different positions,
- figure 2 is a schematic view of a vehicle door handle,
- figure 3 is a schematic view of the coupling mechanism of the handle of figure 2,
- figure 4 is an exploded view of the coupling device of the handle according to figures
2 and 3 with representations of cross sections of its main components,
- figures 5a, 5b, 5c show different positions of the coupling device of figure 4 illustrating
the case of a push-push unit actuation,
- figures 6a, 6b, 6c show different positions of the coupling device of figure 4 illustrating
the case of a motorized actuation.
[0024] In all figures, the same references apply to the same element.
[0025] Figure 1 shows a series of schematic cutaways of a vehicle door panel 100 having
a built-in door handle 1. The door panel 100 forms an exterior surface of the vehicle,
the door handle 1 is essentially represented by its handle lever 3 (the part meant
to be grasped and set in motion by a user) and a handle frame 5 (part that remains
stationary during actuation).
[0026] The terms like "inwards", "outwards" and equivalents are defined with respect to
the vehicle interior and exterior.
[0027] In the first cutaway of figure 1, the handle lever 3 is in a flushing position. In
said flushing position, the outer surface of the handle lever 3 is flushing with the
door panel 100. Said flushing position is adopted when the vehicle is driving and
when it is parked for longer times. In flushing position, the handle lever 3 is less
likely, when parked, to be interacted with by passers-by, accidentally or not, and
air drag is reduced when driving. In the flushing position, the handle lever 3 also
appears integrated in the door panel 100 in a pleasant and discrete way.
[0028] In the second cutaway of figure 1, the handle lever 3 is in a ready position. In
said ready position, the handle lever 3 has rotated outwards by a predefined angle
(20 to 45° for example) around a handle axis A, so as to be graspable by the user.
Said ready position is adopted when the user approaches the vehicle or causes unlocking
of the doors, for example using a remote control integrated in a key or a RFID security
token. In said position the handle lever 3 is available and graspable for the user,
but the handle is still latched.
[0029] In the third cutaway of figure 1, the handle lever 3 is in an open position. Compared
to the ready position, the handle lever 3 has been rotated further outwards (40° to
60° and more) by the user, and the handle lever interacts with a latch mechanism to
unlatch the door, which is consequently unlatched and ready to be opened by pulling
further on the handle lever 3.
[0030] In the event of a mechanical or electrical failure of the mechanism that drives the
lever 3 from the flushing position to the ready position, the user can push the lever
3 inwards with respect to the door panel 100, as in the fourth cutaway of figure 1,
by applying inwards directed pressure P on the handle lever 3. The handle lever 3
is then in a position herein called clicking position, where a mechanical interaction
(a "click") releases a spring of a push-push unit that drives the lever 3 in ready
position without actuation of a motor.
[0031] Figure 2 is a view of the door handle 1 from inside. In figure 2, the handle lever
3 is rotatively mobile with respect to the handle frame 5, which is to be attached
to an interior surface of the vehicle door panel 100. The frame 5 comprises housings
for most parts of the door handle 1.
[0032] In a housing of the frame 5 is an electric motor 7 with a reduction mechanism 9.
The electric motor 7 is activated by injection of electric current, in particular
from a vehicle battery. The reduction mechanism 9 adapts the rotary output motion
of the electric motor 7 by reducing rotational speed and increasing the torque values.
The reduction mechanism 9 sets the handle lever 3 in motion, in particular from the
flushing position to the ready position.
[0033] The reduction mechanism 9 comprises for example one or more reduction stages, with
reduction gears and/or worm and gear systems.
[0034] The reduction mechanism 9 sets a coupling device 200 in motion. The coupling device
200 comprises a lever base 11, to which a handle lever body (not represented) is attached
upon assembling the handle 1 to obtain the assembled handle lever 3.
[0035] The frame 5 also houses a push-push unit 13, comprising two push-push springs 15,
placed around two guiding rods 17. The push-push springs 15 push when released a slider
19 carrying a protruding finger 21 which rests against a push-push lever 30 of the
coupling device 200. The protruding finger 21 is in particular made of rubber, soft
plastic or any shock absorbing material.
[0036] The springs 15 and guiding rods 17 are placed on each side of a release mechanism
23, which, when being compressed (clicking position), releases the slider 19 which
is then pushed by the springs 15 along the guiding rods 17, pushing the handle lever
3 in ready position.
[0037] The rotational position of the handle lever 3 is detected by positioning means 25,
on the lower side of the coupling device 200. Said positioning means 25 comprise a
magnetic index and a magnetic sensor (e.g. a Hall effect sensor). The magnetic index
rotates with the coupling device 200 and the handle lever 3, the magnetic sensor then
determinates the rotational position of the magnetic index, and thus the position
of the handle lever 3.
[0038] Figure 3 is a view of the coupling device 200, taken out of the frame 5.
[0039] In figure 3, the coupling device 200 comprises the lever base 11, and surrounds in
particular a lever shaft 27, which extends axially from the lever base 11. It comprises
two axial portions 27a, 27b, corresponding to a push-push lever ring 29 and a coupling
gear 31 which cover respectively one of the axial portions 27a, 27b in assembled state
of the coupling device 200.
[0040] The push-push lever ring 29 is axially and rotatively linked to the lever shaft 27,
and comprises the push-push lever 30, extending radially from a form fitting annular
main body.
[0041] The coupling gear 31 comprises meshing teeth 33 on a portion of its outer, cylindrical,
wall.
[0042] Figure 4 is an exploded view of the coupling device 200 comprising the lever shaft
27, the push-push lever ring 29 and the coupling gear 31.
[0043] The lever shaft 27 comprises two axial portions 27a, 27b, respectively surrounded
by the push-push lever ring 29 and the coupling gear 31 when the coupling device 200
is assembled.
[0044] The first axial portion 27a when starting at the handle lever base 11 has four radial
rails 35, which interact with a form fitting, cross-shaped hole in the push-push lever
ring 29. The second axial portion 27b has two radial rails 35, which are prolongations
of two opposite of the radial rails 35 of the first axial portion 27a.
[0045] The coupling gear 31 comprises a gear body in which an axial hole is made. Said hole
comprises a central circular hole 37, and two circular arc shaped holes 39, extending
on two radially opposite sides of the central circular hole 37.
[0046] The angular arc opening of the circular arc shaped holes 39 is at least equal to
the angular distance between the clicking and ready positions of the handle lever
3 (or handle lever base 11). The angular arc opening of said holes 39 is in particular
comprised between 30° and 150°.
[0047] The lower angular opening values (around 30°) correspond to embodiments where the
free rotational movement of the lever shaft 27 and coupling gear 31 is equal to the
angular distance between the clicking and ready positions of the handle lever 3. The
circular arc shaped holes 39 with more important angular opening values (more than
90°) are indicated to dissipate the kinetic energy arising at the end of the motion
during fast opening of the door panel 100.
[0048] The coupling gear 31 and the lever shaft 27 with its radial rails 35 form a coupling
mechanism supported by the lever shaft 27, rotatively linking the lever shaft 27 and
the coupling gear 31. Said coupling mechanism is configured to allow free rotational
movement of the lever shaft 27 with respect to the coupling gear 31 within an angular
range corresponding to the angular distance between the ready position and the clicking
position of the handle lever 3.
[0049] Axial cutaways of the axial portions 27a, 27b and of the push-push lever ring 29
and the coupling gear 31 are also represented in figure 4.
[0050] Figures 5a, 5b and 5c illustrate the push-push actuation in case of electric failure
(empty or faulty battery, failure of motor 7).
[0051] Said figures are schematic axial views of the coupling device 200 of figure 4, when
looked on from the axial end opposite the handle lever base 11. The coupling device
200 is viewed along axis A, so that only the radial surfaces of the coupling gear
31 and the handle lever shaft 27 are visible, along with the push-push lever 30.
[0052] The push-push lever 30, the lever shaft 27 and the handle lever 3 are rotatively
coupled : none can rotate without rotation of the others, due to the form fitting
between the lever shaft 27 and the push-push lever ring 29.
[0053] In figure 5a, the handle lever 3 is in flush position. The lever shaft 27 and coupling
gear 31 are in a relative position in which the radial rails 37 are in a non-extremal
position within the circular arc shaped holes 39 : they do not rest against one of
the radial walls of the circular arc shaped holes 39. The push-push unit 13 (represented
schematically by one of its springs) is in its pre-loaded, unreleased ("armed") state.
[0054] In figure 5b, the user presses against the handle lever 3, causing a rotation of
the lever shaft 27, and consequently of the push-push lever 30 so as to reach the
clicking position, in which the push-push unit 13 is further compressed and released.
In figure 5b, the radial extensions of the lever shaft 27 rest against one of the
radial walls of their respective circular arc shaped hole 39. In both figures 5a,
5b, the reduction gear 31 is in the same rotational position.
[0055] In figure 5c, the released push-push unit 13 pushes the push-push lever 30, and in
turn the handle lever 3 until the ready position is reached. In said ready position,
the push-push lever 30 is pushed beyond its position of figure 5a (dotted outline
corresponding to flush position), and the radial rails 35 rest against the other radial
wall of their respective circular arc shaped hole 39.
[0056] In none of the figures 5a, 5b, 5c is the coupling gear 31 set in motion. The lever
shaft 27 is rotatively freely movable relatively to the coupling gear 31 between the
ready position and the clicking position. In particular, the angular opening of the
circular arc shaped holes 39 corresponds at least to the angle of rotation of the
handle lever 3 between the ready and clicking position.
[0057] The figures 6a, 6b and 6c illustrate the action of the motor 7 on the coupling gear
31 and consequently of the handle lever shaft 27, for example during normal actuation
when an approaching user has been detected.
[0058] Figure 6a is a representation of the coupling device 200 when the handle lever 3
is in flush position, figure 6a is therefore identical to figure 5a.
[0059] The motor 7 causes a rotation of the coupling gear 31. During a first part of said
rotation, the coupling gear 31 moves without setting the lever shaft 27 in motion,
in particular until the radial rails 35 rest against radial walls of the circular
arc shaped holes 39. This situation is represented in figure 6b. The total angular
range the lever shaft 27 can be rotated without applying an important torque to the
reduction gear 31 corresponds to the angular opening of the circular arc holes 39,
that is at least to the angle between the ready position and the clicking position
of lever 3.
[0060] Further rotation of the coupling gear 31 causes said gear 31 to apply a torque on
the radial rails 35 and consequently to the lever shaft 27, which is in turn set in
motion until reaching the ready position as illustrated in figure 6c.
[0061] In all figures 6a, 6b, 6c the push-push unit 13 does not move, and remains pre-loaded
and restrained by the release mechanism 23.
[0062] To enable both motions from figures 5a, 5b 5c and 6a, 6b, 6c, the angular portion
of the coupling gear 31 bearing meshing teeth 33 to interact with for example a worm
gear of the reduction mechanism 9, must cover and angular portion of the coupling
gear 31 greater than the sum of the angle from clicking position to ready position
(to overcome the limited free motion of the coupling gear 31 relatively to the lever
shaft 27) and of the angle from flush position to ready position (to cover the actual
motion of the lever shaft 27 when set in motion).
[0063] In case of a car battery failure due, for example, to prolonged parking or leaving
the headlights on, the user will initiate a push-push actuation as illustrated in
figures 5a, 5b, 5c by releasing the push-push unit 13.
[0064] Furthermore, to enable an automated return to pre-loaded and constrained ("armed")
state of the push-push unit 13, the electric motor 7 must be able to return the handle
lever 3 from the flush position to the clicking position. To enable automated rearming
of the push-push unit 13 the angle of the coupling gear 31 that bears meshing teeth
33 is greater than the sum of the previously discussed angle (from clicking position
to ready position added to the angle from flush position to ready position) and of
the angle from flush position to clicking position (in absolute values).
[0065] Said sum of angles is equal to twice the angle from clicking position to ready position.
[0066] The coupling device 200, lever shaft 27, coupling gear 31 and push-push lever ring
29, can entirely be made of moulded plastic materials.
[0067] The invention allows a selective decoupling of the motion related to electric readying
using electric motor 7, and of the motion related to back-up actuation using the push-push
unit 13. The reduction stages and their gears and worms can then be optimized only
for transmitting motion and torque from the motor 7 to the lever shaft 27, without
taking into account a possible reverse motion reduction from the lever 3 to the motor
7.
[0068] Irreversible reduction mechanisms are more temperature tolerant, require less precisely
machined parts, and undergo much less stress and wear than reversible ones, allowing
for more tolerance in component dimensioning and conception.
[0069] Motion of the lever 3 without motion of the reduction gears also causes less resistance
and noise, which a user would perceive as unwanted and a token of lower quality.
[0070] The invention therefore makes the door handle 1 more robust and potentially cheaper,
while increasing overall perceived quality.
1. Coupling device for a vehicle door handle (1), the door handle (1) having a handle
lever (3) movable between a flush position in which it is flush with an exterior door
panel (100) surface and a ready position in which it is protruding and graspable by
a user by an electric motor (7), and between an inward clicking position in which
a preloaded push-push unit (13) is released so as to bring the handle lever (3) in
said ready position without actuation of the electric motor (7),
comprising :
• a lever shaft (27), configured to be connected to the handle lever (3),
• a push-push lever ring (29), configured to be rotatively coupled with the lever
shaft (27), interacting via a push-push lever (30) with the push-push unit (13) when
the handle lever (3) is pushed inwards in the clicking position so as to release the
preloaded push-push unit (13) and push the lever (3) in ready position,
• a coupling gear (31), configured to be rotatively coupled with the lever shaft (27),
interacting with the electric motor (7) to move the handle lever (3) from the flush
position to the ready position,
wherein the lever shaft (27) is configured to be rotatively coupled to the coupling
gear (31) via a coupling mechanism supported by the lever shaft (27) and rotatively
linking the lever shaft (27) and the coupling gear (31), the coupling mechanism being
configured to allow free rotational movement of the lever shaft (27) with respect
to the coupling gear (31) within an angular range corresponding to the angular distance
between the ready position and the clicking position of the handle lever (3).
2. Coupling device according to claim 1, characterized in that the lever shaft (27) comprises on an axial portion (27b) at least one radial rail
(35), and the coupling gear (31) comprises at least one circular arc shaped hole (39)
housing the radial rail (35), and the angular opening of the circular arc shaped hole
(39) corresponds to the angular distance between the ready position and the clicking
position of the handle lever (3).
3. Coupling device according to claim 2, characterized in that the lever shaft (27) comprises on an axial portion (27b) two diametrically opposite
radial rails (35), and the reduction gear (31) comprises two radially opposite circular
arc shaped holes (39) in which the radial rails (35) can move freely between angular
positions corresponding to the ready position and the clicking position of the handle
lever (3).
4. Coupling device according to any of claims 1 to 3, characterized in that the push-push lever (30) is carried by the push-push lever ring (29) form-fitted
to a first axial portion (27a) of the lever shaft (27).
5. Coupling device according to any of the preceding claims, characterized in that the lever shaft (27), the coupling gear (31) and the push-push lever ring (29) are
made of moulded plastic.
6. Coupling device according to any of the preceding claims, characterized in that the angular portion of the coupling gear (31) bearing meshing teeth (33) to interact
with a reduction mechanism (9) covers an angular portion of the coupling gear (31)
greater than the sum of the angle from clicking position to ready position and of
the angle from flush position to ready position of the handle lever (3).
7. Coupling device according to any of the preceding claims, characterized in that the angular portion of the coupling gear (31) bearing meshing teeth (33) to interact
with a reduction mechanism (9) covers an angular portion of the coupling gear (31)
greater than twice the angle from clicking position to ready position of the handle
lever (3).
8. Door handle, in particular for a vehicle door, comprising:
• a handle lever (3),
• an electric motor (7) and a reduction mechanism (9) to transmit rotational movement
from the motor (7) to the handle lever (3),
• a push-push unit (13) with at least one preloaded spring (15), and
• a coupling device according to claim 1,
wherein the handle lever (3) is movable between a flush position in which it is flush
with an exterior door panel (100) surface and a ready position in which it is protruding
and graspable by a user by the electric motor (7), and between an inward clicking
position in which the preloaded push-push unit (13) is released so as to bring the
handle lever (3) in ready position without actuation of the electric motor (7).
9. Door handle according to the preceding claim, characterized in that the push-push unit (13) comprises two preloaded springs (15) pushing, when released,
a slider (37) interacting via a protruding finger (21) with the push-push lever (30)
protruding radially from the handle lever shaft (27).
10. Door handle according to claim 8 or 9, characterized in that the reduction mechanism (9) comprises a worm drive interacting with the coupling
gear (31) to set the handle lever (3) in motion when the electric motor (7) is actuated.
1. Kopplungsgerät für einen Fahrzeugtürgriff (1), wobei der Türgriff (1) einen Griffhebel
(3) hat, der zwischen einer bündigen Position, in der er bündig mit einer äußeren
Türverkleidungs (100) - Oberfläche ist, und einer Bereitschaftsposition, in der er
hervorragt und durch einen Benutzer greifbar ist, durch einen Elektromotor (7) und
zwischen einer nach innen klickenden Position, in der eine vorgespannte Druck-Druck-Einheit
(13) gelöst ist, um den Griffhebel (3) in die Bereitschaftsposition zu bringen, ohne
Betätigung des Elektromotors (7) beweglich ist, umfassend:
• eine Hebelwelle (27), die zur Verbindung mit dem Griffhebel (3) ausgelegt ist,
• einen Druck-Druck-Hebelring (29), der zur Drehkopplung mit der Hebelwelle (27) ausgelegt
ist, der über einen Druck-Druck-Hebel (30) mit der Druck-Druck-Einheit (13) zusammenwirkt,
wenn der Griffhebel (3) nach innen in die klickende Position gedrückt wird, um die
vorgespannte Druck-Druck-Einheit (13) zu lösen und den Hebel (3) in die Bereitschaftsposition
zu drücken,
• ein Kopplungszahnrad (31), das zur Drehkopplung mit der Hebelwelle (27) ausgelegt
ist, das mit dem Elektromotor (7) zusammenwirkt, um den Griffhebel (3) von der bündigen
Position in die Bereitschaftsposition zu bewegen, wobei die Hebelwelle (27) zur Drehkopplung
mit dem Kopplungszahnrad (31) über einen Kopplungsmechanismus, der durch die Hebelwelle
(27) getragen wird und die Hebelwelle (27) und das Kopplungszahnrad (31) drehbar verbindet,
ausgelegt ist, wobei der Kopplungsmechanismus zum Gestatten einer freien Drehbewegung
der Hebelwelle (27) in Bezug auf das Kopplungszahnrad (31) innerhalb eines Winkelbereichs,
der dem Winkelabstand zwischen der Bereitschaftsposition und der klickenden Position
des Griffhebels (3) entspricht, ausgelegt ist.
2. Kopplungsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Hebelwelle (27) an einem axialen Abschnitt (27b) mindestens eine radiale Schiene
(35) umfasst und das Kopplungszahnrad (31) mindestens ein kreisbogenförmiges Loch
(39) umfasst, in dem die radiale Schiene (35) untergebracht ist, und die Winkelöffnung
des kreisbogenförmigen Lochs (39) dem Winkelabstand zwischen der Bereitschaftsposition
und der klickenden Position des Griffhebels (3) entspricht.
3. Kopplungsgerät nach Anspruch 2, dadurch gekennzeichnet, dass die Hebelwelle (27) an einem axialen Abschnitt (27b) zwei diametral gegenüberliegende
radiale Schienen (35) umfasst, und das Untersetzungszahnrad (31) zwei radial gegenüberliegende
kreisbogenförmige Löcher (39) umfasst, in denen sich die radialen Schienen (35) frei
zwischen Winkelpositionen bewegen können, die der Bereitschaftsposition und der klickenden
Position des Griffhebels (3) entsprechen.
4. Kopplungsgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Druck-Druck-Hebel (30) durch den Druck-Druck-Hebelring (29) getragen wird, der
formschlüssig an einem ersten axialen Abschnitt (27a) der Hebelwelle (27) angebracht
ist.
5. Kopplungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Hebelwelle (27), das Kopplungszahnrad (31) und der Druck-Druck-Hebelring (29)
aus geformtem Kunststoff hergestellt sind.
6. Kopplungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Winkelabschnitt des Kopplungszahnrads (31), der ineinandergreifende Zähne (33)
trägt, um mit einem Untersetzungsmechanismus (9) zusammenzuwirken, einen Winkelabschnitt
des Kopplungszahnrads (31) abdeckt, der größer ist als die Summe des Winkels von der
klickenden Position zur Bereitschaftsposition und des Winkels von der bündigen Position
zur Bereitschaftsposition des Griffhebels (3).
7. Kopplungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Winkelabschnitt des Kopplungszahnrads (31), der ineinandergreifende Zähne (33)
trägt, um mit einem Untersetzungsmechanismus (9) zusammenzuwirken, einen Winkelabschnitt
des Kopplungszahnrads (31) abdeckt, der größer ist als zweimal der Winkel von der
klickenden Position zur Bereitschaftsposition des Griffhebels (3).
8. Türgriff, insbesondere für eine Fahrzeugtür, umfassend:
• einen Griffhebel (3),
• einen Elektromotor (7) und einen Untersetzungsmechanismus (9) zum Übertragen einer
Drehbewegung von dem Motor (7) zu dem Griffhebel (3),
• eine Druck-Druck-Einheit (13) mit mindestens einer vorgespannten Feder (15), und
• ein Kopplungsgerät nach Anspruch 1, wobei der Griffhebel (3) zwischen einer bündigen
Position, in der er bündig mit einer äußeren Türverkleidungs (100) -Oberfläche ist,
und einer Bereitschaftsposition, in der er hervorragt und durch einen Benutzer greifbar
ist, durch den Elektromotor (7) und zwischen einer nach innen klickenden Position,
in der die vorgespannte Druck-Druck-Einheit (13) gelöst ist, um den Griffhebel (3)
in die Bereitschaftsposition zu bringen, ohne Betätigung des Elektromotors (7) beweglich
ist.
9. Türgriff gemäß dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Druck-Druck-Einheit (13) zwei vorgespannte Federn (15) umfasst, die, wenn gelöst,
einen Schieber (37) drücken, der über einen hervorragenden Finger (21) mit dem radial
von der Griffhebelwelle (27) hervorragenden Druck-Druck-Hebel (30) zusammenwirkt.
10. Türgriff nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass der Untersetzungsmechanismus (9) einen Schneckenantrieb umfasst, der mit dem Kopplungszahnrad
(31) zusammenwirkt, um den Griffhebel (3) in Bewegung zu setzen, wenn der Elektromotor
(7) betätigt wird.
1. Dispositif d'accouplement pour une poignée de porte de véhicule (1), la poignée de
porte (1) ayant un levier de poignée (3) mobile entre une position d'affleurement
dans laquelle il est à fleur d'une surface de panneau de porte extérieur (100) et
une position d'utilisation dans laquelle il est en saillie et peut être saisi par
un utilisateur par un moteur électrique (7), et entre une position d'encliquetage
vers l'intérieur dans laquelle une unité push-push précontrainte (13) est libérée
de sorte à amener le levier de poignée (3) dans ladite position d'utilisation sans
actionnement du moteur électrique (7), comprenant :
un arbre de levier (27), conçu pour être relié au levier de poignée (3),
un anneau de levier push-push (29), conçu pour être accouplé en rotation avec l'arbre
de levier (27), interagissant par l'intermédiaire d'un levier push-push (30) avec
l'unité push-push (13) lorsque le levier de poignée (3) est poussé vers l'intérieur
dans la position d'encliquetage de sorte à libérer l'unité push-push précontrainte
(13) et à pousser le levier (3) en position d'utilisation,
un engrenage d'accouplement (31), conçu pour être accouplé en rotation avec l'arbre
de levier (27), interagissant avec le moteur électrique (7) pour déplacer le levier
de poignée (3) de la position d'affleurement à la position d'utilisation,
caractérisé en ce que l'arbre de levier (27) est conçu pour être accouplé en rotation avec l'engrenage
d'accouplement (31) par l'intermédiaire d'un mécanisme d'accouplement supporté par
l'arbre de levier (27) et reliant en rotation l'arbre de levier (27) et l'engrenage
d'accouplement (31), et en ce que le mécanisme d'accouplement est configuré pour permettre un mouvement de rotation
libre de l'arbre de levier (27) par rapport à l'engrenage d'accouplement (31) dans
une plage angulaire correspondant à la distance angulaire entre la position d'utilisation
et la position d'encliquetage du levier de poignée (3).
2. Dispositif d'accouplement selon la revendication 1, caractérisé en ce que l'arbre de levier (27) comprend sur une partie axiale (27b) au moins un rail radial
(35), et l'engrenage d'accouplement (31) comprend au moins un trou (39) en forme d'arc
de cercle logeant le rail radial (35), et l'ouverture angulaire du trou (39) en forme
d'arc de cercle correspond à la distance angulaire entre la position d'utilisation
et la position d'encliquetage du levier de poignée (3).
3. Dispositif d'accouplement selon la revendication 2, caractérisé en ce que l'arbre de levier (27) comprend sur une partie axiale (27b) deux rails radiaux (35)
diamétralement opposés, et l'engrenage réducteur (31) comprend deux trous (39) en
forme d'arc de cercle radialement opposés dans lesquels les rails radiaux (35) peuvent
se déplacer librement entre des positions angulaires correspondant à la position d'utilisation
et à la position d'encliquetage du levier de poignée (3).
4. Dispositif d'accouplement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le levier push-push (30) est porté par l'anneau de levier push-push (29) monté par
complémentarité de forme sur une première partie axiale (27a) de l'arbre de levier
(27) .
5. Dispositif d'accouplement selon l'une quelconque des revendications précédentes, caractérisé en ce que l'arbre de levier (27), l'engrenage d'accouplement (31) et l'anneau de levier push-push
(29) sont en matière plastique moulée.
6. Dispositif d'accouplement selon l'une quelconque des revendications précédentes, caractérisé en ce que la partie angulaire de l'engrenage d'accouplement (31) portant des dents d'engrènement
(33) pour interagir avec un mécanisme de réduction (9) couvre une partie angulaire
de l'engrenage d'accouplement (31) supérieure à la somme de l'angle de la position
d'encliquetage à la position d'utilisation et de l'angle de la position d'affleurement
à la position d'utilisation du levier de poignée (3).
7. Dispositif d'accouplement selon l'une quelconque des revendications précédentes, caractérisé en ce que la partie angulaire de l'engrenage d'accouplement (31) portant des dents d'engrènement
(33) pour interagir avec un mécanisme de réduction (9) couvre une partie angulaire
de l'engrenage d'accouplement (31) supérieure à deux fois l'angle de la position d'encliquetage
à la position d'utilisation du levier de poignée (3).
8. Poignée de porte, en particulier destinée à une porte de véhicule, comprenant :
un levier de poignée (3),
un moteur électrique (7) et un mécanisme de réduction (9) pour transmettre le mouvement
de rotation du moteur (7) au levier de poignée (3),
une unité push-push (13) avec au moins un ressort précontraint (15), et
un dispositif d'accouplement selon la revendication 1, le levier de poignée (3) étant
mobile entre une position d'affleurement dans laquelle il est à fleur d'une surface
de panneau de porte extérieur (100) et une position d'utilisation dans laquelle il
est en saillie et peut être saisi par un utilisateur par le moteur électrique (7),
et entre une position d'encliquetage vers l'intérieur dans laquelle l'unité push-push
précontrainte (13) est libérée de sorte à amener le levier de poignée (3) en position
d'utilisation sans actionnement du moteur électrique (7) .
9. Poignée de porte selon la revendication précédente, caractérisée en ce que l'unité push-push (13) comprend deux ressorts précontraints (15) poussant, lorsqu'ils
sont relâchés, un coulisseau (37) interagissant par l'intermédiaire d'un doigt saillant
(21) avec le levier push-push (30) faisant saillie radialement de l'arbre de levier
de poignée (27).
10. Poignée de porte selon la revendication 8 ou 9, caractérisée en ce que le mécanisme de réduction (9) comprend un entraînement à vis sans fin interagissant
avec l'engrenage d'accouplement (31) pour mettre le levier de poignée (3) en mouvement
lorsque le moteur électrique (7) est actionné.