WO2019048758A1

WO2019048758A1 - Device for closing a door with priority opening for an openable body section of a motor vehicle

Info

Publication number: WO2019048758A1
Application number: PCT/FR2018/052135
Authority: WO
Inventors: François BERNIER
Original assignee: U-Shin France
Priority date: 2017-09-07
Filing date: 2018-08-30
Publication date: 2019-03-14
Also published as: EP3679210B1; CN111094678A; CN111094678B; EP3679210A1; FR3070705B1; FR3070705A1; FR3070704A1; JP2020533499A

Abstract

The invention relates to a device (14) for closing a door with priority opening for an openable body section of a motor vehicle, comprising a bolt (16), a lever (20) for driving the bolt (16), a driving cable (36) provided to be pulled by an actuator (50) in order to drive the bolt (16) into the closed position thereof, and a curved sheath (64) that houses the cable (36) and extends from an outlet sheath stop (60) until an inlet sheath stop (62), characterised in that it comprises a disengaging member (52) which supports the outlet sheath (60) and which is designed to occupy a disengaging state in which the disengaging member (52) and the outlet sheath stop (60) are free to move with respect to the frame, so that the driving cable (36) is no longer capable of moving the bolt (16).

Description

CLOSURE DEVICE FOR OPENING OPENING DOOR FOR OPENING OF MOTOR VEHICLE

The invention relates to a door closure device for making the opening priority on the closing of the opening.

The invention relates more particularly to a door closing device with priority opening and closing assistance.

A closing assistance door closure device allows a partial closure of the opening and a complete closure of the opening.

Such a device, described and shown in WO 2008/145668, generally comprises a bolt which is intended to cooperate with a striker carried by a frame, a bolt driving lever and a bolt locking pawl.

The bolt has a first notch and a second notch which are designed to cooperate with the ratchet.

More particularly, the bolt is pivotally mounted on a fixed frame of the opening between a closed position at the first notch which corresponds to the partial closure of the opening in which the bolt is blocked by the pawl by its first notch, a position closing the second notch which corresponds to the total closure of the opening in which the bolt is blocked by the pawl by its second detent and an open position in which the bolt releases the strike to allow the opening of the opening .

Also, an actuator can assist the movement of the bolt from its closed position to the first notch to its closed position at the second notch to help overcome the load exerted by the seal of the opening.

For this purpose, the closure device comprises a drive cable which is connected to the bolt drive lever and which is driven in displacement by the actuator to drive the bolt in displacement.

The closing assistance function can lead to a security risk such as the jamming of a passenger's fingers in the opening of the door, for example. To avoid this risk, it is known to equip the closure device with a release device that allows instant release of the closing device to open the opening.

This instantaneous release is translated technically by the action of giving priority to the opening of the opening on the closure of the opening.

For this purpose, it is known to disengage the actuator, for example by disengaging the geared motor associated with the actuator, as proposed in EP 1 452 361. However, the solution by internal clutch to the actuator is expensive.

It is also known to disengage the motion transmission kinematic chain between the actuator and the bolt drive lever. However, the solution by disengaging the transmission kinematics is complex and requires several components dedicated to this disengagement function.

The present invention aims in particular to solve these drawbacks and relates to this purpose to a closing device of priority opening door for opening of a motor vehicle, comprising:

- A bolt which is pivotally mounted on a frame about an axis between at least one closed position in which the bolt is intended to cooperate with a striker and an open position in which the bolt is intended to release the striker,

- A bolt driving lever which is pivotally mounted on the frame and which is adapted to drive the latch bolt at least towards its closed position,

a drive cable which extends from an outlet end which is connected to the bolt drive lever, to an input end which is adapted to be connected to an actuator, the cable being provided for being pulled by the actuator to drive the bolt into its closed position, and

a sinuous sheath which houses the cable and which extends from an outlet sheath stop to an inlet sheath stop,

characterized in that it comprises:

a disengaging member which carries the outlet sheath stop and which is designed to occupy a state of force transmission in which the disengaging member is immobilized on the frame, so that the drive cable is suitable to drive the bolt on the move, and a disengagement state in which the disengaging member and the outlet sheath stop are free to move relative to the frame, so that the drive cable is no longer able to drive the bolt on the move, and

a control element which is movably mounted on the frame between a locking position in which the control element blocks the disengaging member in its transmission state, and an unlocking position in which the control element releases the disengaging element; disengaging member.

The device according to the invention offers a priority function to the opening on the motorized closure of the opening, without adding a complex mechanism of disengagement.

According to another characteristic, the control element is connected to an opening transmission element of an opening, so that the control element is driven from its locking position to its unlocking position by said element. transmission when opening the opening, to disengage the bolt.

Advantageously, the control element is a part that is generally present on a door lock to control the opening of the door.

According to another characteristic, the disengaging member is a disengaging lever which is pivotally mounted on the frame between a force transmission position which corresponds to a position adopted by the disengaging member in its transmission state, and a disengagement position which corresponds to a limit position adopted by the disengaging member in its disengaged state.

According to another characteristic, the device according to the invention comprises an elastic return element of the disengaging member to its transmission position.

According to another characteristic, the device according to the invention comprises a stop which is integral with the frame and which is arranged so as to limit the stroke of the disengaging member in its transmission position, against the elastic return element of the disengaging member.

According to another characteristic, the device comprises a motorized closure assistance device which comprises an actuator designed to drive the bolt in its closed position.

The invention also relates to an opening of a motor vehicle comprising a door closing device of the type described above. 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:

- Figure 1 is a schematic sectional view which illustrates an opening of a motor vehicle and a frame equipped with a striker;

- Figure 2 is a schematic view of the interior of the opening which illustrates the closure device according to the invention comprising a release member in a transmission state and a bolt in a closed position at the first notch;

- Figure 3 is a schematic view of the interior of the opening which illustrates the closure device according to the invention comprising a release member in a transmission state and a bolt in a closed position at the second notch;

- Figure 4 is a schematic view of the interior of the opening which illustrates the closure device according to the invention comprising a disengaging member in a transmission state and a bolt in a closed position at the second notch;

- Figure 5 is a schematic view of the interior of the opening which illustrates the closure device according to the invention comprising a disengaging member in a disengaged state and a bolt disengaged in a closed position at the first notch.

FIG. 1 shows an opening 10 of a motor vehicle which is pivotally mounted on a frame 12 forming a door frame and which is illustrated in an open position in FIG.

The opening 10 is equipped with a door closing device 14, illustrated in Figure 2, which forms a lock and which comprises a bolt 16 for cooperating with a keeper 18 mounted on the frame 12, a drive lever 20 of the bolt 16, and a pawl 22 for locking the bolt 16.

The bolt 16 is pivotally mounted on a fixed portion of the opening 10 called frame, about a transverse axis A pivoting, between an open position illustrated in Figure 2, corresponding to an open position of the opening 10 , a so-called closing position at the first notch illustrated in FIG. 3, corresponding to a partial closing position of the opening 10 and a so-called closing position at the second notch illustrated in FIG. 4, corresponding to a total closing position of the opening 10. The bolt 16 defines a first detent 24 which cooperates with the pawl 22 when the bolt 16 is in its closed position at the first notch.

Similarly, the bolt 16 defines a second detent 26 which cooperates with the pawl 22 when the bolt 16 is in its closed position at the second notch.

For this purpose, the pawl 22 is pivotally mounted on the frame about a transverse axis B, between a locking position in which the pawl 22 opposes the pivoting of the bolt 16 from one of its closed positions to its position d opening, and an unlocking position in which the pawl 22 releases the bolt 16.

The pawl 22 is biased towards its locking position by a return spring (not shown).

Also, the pawl 22 is pivotally integral with a driver 28 itself driven by an actuator (not shown) for opening the lock, to enable the pawl to be actuated in its unlocking position of the bolt 16 in case of door opening control.

The driving lever 20 of the bolt 16 has a first section 30 which forms a fork 32 for driving the bolt 16, a second section 34 which is connected to a drive cable 36 and a central section 38 which is pivotally mounted on the frame of the opening 10.

The fork 32 of the driving lever 20 comprises a first branch 40 and a second branch 42.

The driving lever 20 is pivotally mounted on the frame about a transverse axis C.

In addition, the bolt 16 comprises a finger 44 which extends generally radially relative to the axis A of pivoting of the bolt 16 and which drives the driving lever 20 in a counterclockwise direction when the bolt 16 passes from its end. opening position to its closed position at the first notch, pushing on the first branch 40 of the fork 32.

Thus, the finger 44 of the bolt 16 is engaged in the fork 32 when the bolt 16 is in its closed position at the first notch shown in Figure 3.

In addition, the second leg 42 of the fork 32 of the driving lever 20 is arranged to drive the bolt 16 from its closed position to the first notch to its closed position at the second notch, via the finger 44. . The driving lever 20 is associated with a spring (not shown) which resiliently recalls the driving lever 20 in a clockwise direction.

Conversely, to allow the pivoting of the drive lever 20 in a counterclockwise direction, the cable 36 extends from an outlet end 46 which is connected to the driving lever 20 of the bolt 16, input end 48 which is connected to an actuator 50.

Thus, pulling the cable 36 allows the bolt 16 to be driven from its closed position at the first notch to its closed position at the second notch.

The assembly formed by the actuator 50, the cable 36 and the driving lever 20 of the bolt 16 constitutes a device for assisting the closure of the opening.

The actuator 50 is for example an assembly comprising an electric motor and a gearbox, which makes it possible to exert traction on the input end 48 of the cable 36.

Also, the door closing device 14 according to the invention comprises a disengaging member 52, forming a lever, and a control element 54 of the disengaging member 52.

The release member 52 extends from a first portion 56 which is pivotally mounted on the frame about a transverse axis D, to a second free portion 58 which carries a first inlet duct stop 60, or input sheath stopper.

A second output sheath stop 62 is mounted on the actuator 50 fixedly relative to the frame.

A sinuous sheath 64, which houses the cable 36, extends between the inlet sheath stop 60 and the outlet sheath stop 62.

The disengagement member 52 is designed to occupy a state of force transmission, shown in Figures 2 to 4, and a disengaged state shown in Figure 5.

In its state of transmission of force, the disengagement member 52 is substantially locked in pivoting on the frame, so that the drive cable 36 is able to transmit a traction force to the drive lever 20 to drive the drive. bolt 16 on the move.

In its disengaged state, the release member 52 is free to pivot relative to the frame, and the inlet sheath 60 is free therefore also, so that the drive cable 36 is no longer capable of transmitting sufficient traction force to the drive lever 20 to drive the bolt 16 moving.

Thus, the disengagement member 52 is pivotally mounted on the frame between a force transmission position which corresponds to a position adopted by the release member 52 in its transmission state, and a disengagement position which corresponds to a position adopted by the release member 52 in its disengaged state, at the end of the race.

The disengagement member 52 is resiliently biased towards its transmission position by an elastic return element (not shown).

In addition, the closure device 14 comprises a stop 65 which is integral with the frame and which is arranged to limit the stroke of the release member in its transmission position, against the elastic return element of the disengaging member.

Indeed, when a wired sheath has an inlet sheath stop and an outlet sheath that are fixed, the sheath experiences a force that is proportional to the force transmitted by the cable at the sheath stop. input.

The force experienced by the sheath is distributed over each sheath stop according to the path of the cable. This phenomenon is only true for a non-rectilinear, or sinuous, duct run.

Conversely, when a wired sheath has a fixed inlet sheath stop and a free outlet sheath stop, the free outlet sheath stop will move under the action of the force it has undergone. , the force exiting the cable is transferred to the free sheath stop so that the cable no longer transmits force beyond the sheath.

The control element 54 is pivotally mounted on the frame about a transverse axis E.

In addition, the control element 54 comprises a locking face 66 which extends generally tangentially to the axis E of pivoting of the control element 54 and which is adapted to bear on a bearing surface 68 formed on the disengagement member 52.

To change the state of the disengagement member 52, the control element 54 is pivotally mounted between a locking position shown in FIGS. 2 to 4, in which the locking face 66 of the control element 54 is in position. bearing on the bearing surface 68 of the release member 52 to lock the disengagement member 52 in its transmission state, and an unlocking position illustrated in FIG. 5, in which the locking face 66 of the control element 54 is no longer facing the face of support 68 of the release member 52 to release the release member 52.

Also, the control element 54 has an arm 70 which is connected to an opening transmission element of an opening (not shown), for example by means of a cable, so that the control element 54 is driven from its locking position to its unlocking position when opening the opening.

Indeed, the control element 54 is connected to the pawl 22 by a cable (not shown) to allow the lock to be opened by releasing the bolt 16, the control lever 54 being biased during the various types of opening lock, in particular a mechanical opening via the handle or an assisted opening via a geared motor.

An example of operation of the closure device 14 according to the invention is described below, in a first step for a door closure control assisted by the actuator 50, without priority opening request and in a second time for a door closing command assisted by the actuator 50, interrupted by a priority opening command.

To move from a closed position to the first notch illustrated in Figure 3, corresponding to a partial closure position of the opening 10, to a closed position to the second notch shown in Figure 4, corresponding to a closed position 10 of the opening, the actuator 50 exerts a tensile force on the cable 36, this force is transmitted to the driving lever 20 of the bolt 16 via the release member 52 which is pivotally locked. in its transmission state by the control element 54 which occupies its blocking position.

Note that in this configuration, when a force is exerted by the cable 36, the disengagement member 52 pivots substantially towards the control element 54 to fill a set J illustrated in Figure 2.

The clearance J in the function of preventing a permanant friction between the clutch element 52 and the control member 54 to allow the control member to rotate freely when it is entered ⁱⁿ Pine pivotally to open the lock . In addition, the clearance J allows a return to the initial position of the control element 54 without interference with the disengagement member 52.

In case of priority opening command, for example when a user actuates the handle of the opening 10 during the closing assistance process described above, to release a hand stuck in the door crack, the control element 54 is driven from its locking position to its unlocking position.

Thus, the control element 54 releases the disengaging member 52 which becomes "crazy", so that in case of tensile force applied to the cable 36 by the actuator 50, the sheath 64 undergoes a contraction, the outlet duct stop 60 transmits this force to the release member 52 which is pivotally driven to its disengaged position shown in Figure 5, and the drive lever 20 of the bolt 16 remains stationary.

It will be noted that even if the process of assisting the closure of the opening is started, the closing device 14 according to the invention makes it possible to release the disengaging member 52 to make the driving lever 20 of the bolt 16 inoperative and thus interrupt the process of assisting the closing of the opening.

The opening has priority over the closing.

Advantageously, the closure device 14 according to the invention does not require a specific release mechanism to be implanted between the cable and the bolt.

The disengagement or clutch of the release member 52 uses the control lever 54 which is present on many types of locks to control the opening of the door.

Thus, the closure device 14 according to the invention offers the advantage of requiring only one disengagement member 52 regardless of the origin of the request to open the lock.

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

It will be understood that the release lever can be pivotally mounted as well as slidably mounted on the frame.

Similarly, simple mechanical inversions are covered by the invention, it is for example possible to make the input sheath stop crazy instead of the output sheath stop. Finally, the door closing device according to the invention is suitable for any type of opening lock cable closure.

Claims

1. Closure device (14) with priority opening for opening (10) of a motor vehicle, comprising:

- a bolt (16) which is pivotally mounted on a frame about an axis

(A) between at least one closing position in which the bolt (16) is intended to cooperate with a striker (18) and an open position in which the bolt (16) is intended to release the striker (18),

- A drive lever (20) of the bolt (16) which is pivotally mounted on the frame and which is adapted to drive the bolt (16) pivoting at least towards its closed position,

a drive cable (36) extending from an outlet end (46) which is connected to the driving lever (20) of the bolt (16) to an inlet end (48) which is adapted to be connected to an actuator (50), the cable (36) being adapted to be pulled by the actuator (50) to drive the bolt (16) into its closed position, and

a sinuous sheath (64) which houses the cable (36) and which extends from an outlet sheath stop (60) to an inlet sheath stop (62), characterized in that it comprises :

- a release member (52) which carries the outlet sheath stop

(60) and which is designed to occupy a state of transmission of effort in which the disengaging member (52) is immobilized on the frame, so that the cable (36) drive is able to drive the bolt ( 16), and a disengagement state in which the disengaging member (52) and the outlet sheath stopping (60) are free to move relative to the frame, so that the cable (36) of drive is no longer capable of driving the bolt (16) on the move, and

- a control element (54) which is movably mounted on the frame between a locking position in which the control element (54) blocks the disengaging member (52) in its transmission state, and an unlocking position wherein the control element (54) releases the disengaging member (52).

High-priority door closing device (14) according to claim 1, characterized in that the control element (54) is connected to an opening transmission member of an opening, so that the control element (54) is driven from its locking position to its unlocking position by said transmission element when opening the opening, to disengage the bolt (16).

3. Closure device (14) of priority opening door according to any one of the preceding claims, characterized in that the release member (52) is a release lever which is pivotally mounted on the frame between a position of force transmission which corresponds to a position adopted by the disengaging member (52) in its transmission state, and a disengagement position which corresponds to an end-of-travel position adopted by the disengaging member (52) in his disengagement state.

4. Closure device (14) priority opening door according to claim 3, characterized in that it comprises a resilient biasing member of the release member (52) to its transmission position.

5. Closure device (14) priority opening door according to claim 4, characterized in that it comprises a stop (65) which is integral with the frame and which is arranged to limit the stroke of the body of disengaging (52) in its transmission position, against the elastic return element of the disengaging member (52).

6. Closure device (14) of priority opening door according to any one of the preceding claims, characterized in that it comprises a motorized closing assistance device which comprises an actuator (50) provided for driving the bolt (16) in its closed position.

7. opening (10) of a motor vehicle having a closure device (14) door according to any one of the preceding claims.