JP2009180029A - Vehicular door opening control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular door opening control system which positively prevents a door from unexpected opening when a vehicle undergoes side collision or the like. <P>SOLUTION: The vehicular door opening control system comprises: a shock detection section 2 for detecting a shock imposed on the vehicle; a door lock device 5 which binds the vehicular door 3 in a locking state, and cancels the locking state upon application of cancellation operating force to a lock canceling section 4; a lock operating means 7 which includes an opening operating section 6, and cancels locking by transmitting the lock cancellation operating force to the opening operating section 6, to the lock canceling section 4; and an operating force transmission inhibiting means 9 which is driven from an operating force transmitting position to a transmission inhibited position by an actuator 8 driven upon output of a shock detection signal of the shock detection section 2, and in the transmission inhibited position, inhibits transmission of the lock cancellation operating force from the lock operating means 7 to the lock canceling section 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle door opening control system.

Generally, as described in Patent Document 1, a vehicle door transmits an unlocking operation force to an outside handle device fixed to an outer panel to the door lock device, and opens the door locked by the door lock device. Configured to operate.
JP 2002-242508 A

  However, in the above-described conventional example, when an impact force such as a side collision is applied to the vehicle and the handle body of the outside handle device rotates in the unlocking operation direction due to the inertial force, the door lock device is inadvertently opened. There is a drawback that it may end up.

  The present invention has been made to solve the above drawbacks, and provides a vehicle door opening control system capable of preventing an inadvertent opening of a door when a side collision or the like occurs. Objective.

  Another object of the present invention is to provide a vehicle door handle device that can be used in the above-described system.

  The vehicle door opening control system includes a door lock device 5, a lock operation unit 7, an impact detection unit 2, and an operation force transmission restriction unit 9. The door lock device 5 restrains the door 3 in the locked state to maintain the closed state, and the locked state is released by applying a release operation force to the lock releasing unit 4.

  The lock operating means 7 includes an opening operation unit 6, and transmits the unlocking operation force applied to the opening operation unit 6 to the unlocking unit 4 to unlock the door 3 by the door lock device 5. The opening operation unit 6 can include a door handle device A in which a handle body 13 and further a lever 15 are rotatably connected to the handle base 10.

  The impact detection unit 2 is installed at an appropriate location of the vehicle and detects an impact force applied to the vehicle due to a collision or the like. When the impact detection unit 2 detects an impact force equal to or greater than a predetermined threshold, the actuator 8 is driven.

  The operating force transmission restricting means 9 is driven between the operating force transmitting position and the transmission restricting position by the actuator 8. This operating force transmission restricting means 9 transmits the operating force to the lock operating means 7 to the door lock device 5 only at the operating force transmission position, and releases the door 3 restraint by the door lock device 5.

  The interruption of the operation force by the operation force transmission restricting means 9 is to restrict the lock operation means 7 to block the movement of the movable part of the lock operation means 7, or to connect the two members together by an appropriate simple clutch mechanism. Can be realized by disabling the transmission of one displacement to the other.

  The operation force interruption due to the restraint of the lock operation means 7 can be performed by locking the locking portion 11 driven by the actuator 8 to the locked portion 12, and in this case, the locked portion 12 is It is possible to hit the locking portion 11 before the unlocking stroke position of the opening operation portion 6 with respect to the door lock device 5 and at a position exceeding the stroke position corresponding to the response time of the locking portion 11 from the impact load on the vehicle. It can be formed as a wall surface.

  In this way, when the locked portion 12 is formed as a wall surface, for example, the operation reliability is improved as compared with the engagement of the locking portion 11 and the locked portion 12 or the constraint by friction, and the device is It can be downsized. That is, when the locked portion 12 is constrained by friction, it is necessary to apply a large vertical load to the contact surface. For example, when a solenoid is used as the actuator 8, a large size is required to ensure a predetermined pressure contact force. Solenoid is required.

  Further, even when the locking portion 11 and the locked portion 12 formed in a gear shape are meshed to restrain the locked portion 12, if the tooth surface of the tooth profile is formed by an inclined surface, Since a component force in the unlocking direction is received from the inclined surface, there is still a need to increase the contact pressure, and a large-sized element cannot be excluded. Furthermore, the generation of the component force in the unlocking direction can be prevented by forming the tooth surface with an orthogonal surface, but in this case, in order to ensure sufficient tooth surface strength, that is, the strength of the locked portion 12, It is necessary to increase the interval between the tooth surfaces, the movement distance until the locked portion 12 is restrained becomes excessive, and the meshing reliability is also lowered.

  In this regard, if the above-described configuration is adopted, the locking portion 11 waits for the wall surface set to abut before the unlocking operation position, so that only the strength against the load when the wall surface collides is obtained. It is sufficient to consider it, and the power of the actuator 8 is not required.

  In addition, when the locking portion 11 is configured to release the restraint on the locked portion 12 after a predetermined time has elapsed after moving to the transmission restriction position, the door 3 is inadvertent when the vehicle body collides. Since the restriction is released immediately after the opening is restricted, there is no problem in escape from the inside of the vehicle after the collision or rescue from the outside of the vehicle.

  In this case, when the solenoid 8 is used as the actuator 8 that drives the locking portion 11 to the transmission restriction position in the excited state and returns to the original position in the non-excited state, the drive signal for releasing the restriction is stopped. Can be substituted. As a result, the restriction release control can be realized by, for example, a simple timer and switch for controlling the energization time, so that the control system can be simplified.

  The operation force blocking position by the operation force transmission restricting means 9 described above is an appropriate position on the lock operation means 7, that is, the opening operation portion 6 such as the handle body 13 and the opening operation force of the opening operation portion 6 are set to the door lock device 5. It is possible to set a transmission rod 17 or a cable for transmission to the door, and a transmission portion 17 to the lock release portion 4 on the door lock device 5. By simply fixing the handle device A to the door 3, the necessary performance can be exhibited.

In this case, the door handle device A is a handle main body 13 that is rotatably connected to the handle base 10, and
A lever having a counterweight 14 that is rotatably connected to the handle base 10 and is rotated by an unlocking operation of the handle body 13 and generates a rotational force in a direction opposite to the rotation operation direction by the handle body 13 when an impact is applied. 15, and the rotation of the lever 15 can be constrained by the locking portion 11.

  By configuring in this way, the inertia force cancellation by the counterweight 14 and the operation force transmission interruption by the operation force transmission restricting means 9 are combined to completely prevent the door 3 from being inadvertently opened at the time of a collision or the like. be able to.

  ADVANTAGE OF THE INVENTION According to this invention, when a side collision etc. generate | occur | produce in a vehicle, the careless opening of a door can be prevented reliably.

  As shown in FIG. 1, the vehicle door opening control system has a door lock device 5 fixed to the vehicle door 3. The door lock device 5 includes a latch (not shown) that is locked to an unillustrated strike formed in the vehicle and restrains the door 3 to maintain a closed state, and an unlocking unit 4. When the release operation force is applied to the part 4, the state shifts to the unlocked state in which the locked state with the strike is released.

  In order to operate the door lock device 5 from outside or inside the vehicle, the door 3 is provided with a lock operating means 7. The lock operating means 7 includes a door handle device A and a transmission unit 17 such as a cable or a rod for transmitting the opening operation force output from the output unit 16 of the door handle device A to the door lock device 5. The door handle device A is formed by connecting a handle body 13 as an opening operation portion 6 to a handle base 10 fixed to the door 3 so as to be rotatable around a pivot 18.

  Reference numeral 9 denotes operating force transmission restricting means, which includes an actuator 8 and a locking portion 11. In this embodiment in which the operating force transmission restricting means 9 is incorporated in the door handle device A, the operating force transmission restricting means 9 is fixed to the handle base 10. When the transmitting portion 17 is directly connected to the handle main body 13 to be the output portion 16, the locked portion 12 applies a rotational operation force applied to the handle main body 13 to the lever 15 as will be described later. In the case of transmission to the transmission unit 17 after conversion by the above, the lever 15 is provided.

  The locking portion 11 is driven by the actuator 8 from the operating force transmission position indicated by the solid line in FIG. 1 to the transmission restriction position indicated by the chain line, and is locked to the locked portion 12 at the transmission restriction position. Due to the locking of the locking portion 11, the movement of the locked portion 12, that is, the handle main body 13 in which the locked portion 12 is formed or the movable member such as the lever 15 is restrained. It becomes impossible to take out the operation force.

  In order to drive and control the actuator 8, an impact detection unit 2 is disposed in the vehicle. The impact detection unit 2 includes an acceleration sensor 19 and a control unit 20. The control unit 20 sets a drive signal for the actuator 8 when the acceleration sensor 19 detects an impact equal to or greater than a predetermined threshold, and a locking unit. 11 is moved to the transmission restriction position.

  Therefore, in this embodiment, in the normal operation state, the locking portion 11 is held at the operating force transmission position, and the constraint on the locked portion 12 is released. When the handle main body 13 is rotated in this state, the output unit 16 is displaced by a predetermined dimension, and the unlocking unit 4 of the door lock device 5 is operated via the transmission unit 17 connected thereto to unlock the latch. To migrate.

  On the other hand, when an impact force is applied to the vehicle due to a side collision or the like, the actuator 8 is operated by a command from the impact detection unit 2 and the locked portion 12 is restrained by the locking portion 11. As a result, even if an inertial force is generated in the handle body 13 or the lever 15 by an impact force, the displacement of the output unit 16 is restricted, so that the door lock device 5 is not inadvertently unlocked.

  2 and 3 show a door handle device A that can be used in the system described above. The door handle device A includes a handle base 10 fixed to the door 3 and a handle main body 13 connected to the handle base 10. The handle body 13 includes an operation protrusion 13b that protrudes inward of the door 3 at one end of an elongated grip 13a, and is rotatably connected to the handle base 10 at the other end. The door handle device A is fixed to the door 3 in the posture shown in FIG. 2A, and is horizontally rotated around the pivot 18 when the door 3 is opened, and the operation protrusion 13b is directed outward of the door 3 accordingly. Move.

  A lever 15 is connected to the handle base 10 in order to transmit an operating force to the handle body 13 to the door lock device 5. As shown in FIG. 3, the lever 15 includes a locking piece 15 a to the operation protrusion 13 b, a counterweight 14, and a wire connecting portion as the output portion 16. An inner cable 17b of the cable 17 in which the cable 17a is fixed to the handle base 10 is connected. The lever 15 is urged by the torsion spring 21 in the direction in which the locking piece 15a is pressed against the operation protrusion 13b, and the handle body 13 is held in the initial posture shown in FIG. 2B by this urging force. The

  The counterweight 14 is formed integrally with the lever 15 and is disposed at a position opposite to the locking piece 15a with the pivot 22 interposed therebetween. The counterweight 14 cooperates with the torsion spring 21 to restrict the rotation of the lever 15 when the handle body 13 is moved in the opening operation direction by an inertial force generated by a collision or the like.

  Therefore, in this embodiment, when the handle main body 13 is rotated horizontally from the initial state, as shown in FIG. 3B, the lever 15 is rotated and the cable 17 is pulled. As a result, the door lock device 5 is locked. The release unit 4 is operated to release the door lock.

  An operating force transmission restricting means 9 is incorporated in the door handle device A so that the door lock device 5 is not opened due to an inertial force when a side collision occurs in the vehicle. As shown in FIG. 4, the operating force transmission restricting means 9 includes a solenoid (actuator 8) that is driven by a command from the impact detector 2 described above. As shown in FIG. 4B, the solenoid 8 attracts the plunger 23 in the excited state, and returns to the protruding state by the restoring force of the return spring 24 when the energization is stopped.

  A pivot 22 of the lever 15 is fixed to the plunger 23 of the solenoid 8. The pivot 22 is provided on the handle base 10 so as to be movable in the longitudinal direction with a protruding locking portion 11 protruding outward. The pivot 22 is prevented from rotating by fitting the locking portion 11 into a rotation notch 10 a formed in the handle base 10, and the lever 15 is idled around the pivot 22.

  The lever 15 is provided with a key groove-shaped through-hole 15b through which the locking portion 11 can be inserted. When the solenoid 8 is excited and the plunger 23 is attracted, the locking portion 11 moves from the operation force transmission position shown in FIG. 4A to a transmission restriction position that enters the through hole 15b. In this state, as shown in FIG. 4D, the movement path of the locked portion 12 formed in the through hole 15b of the lever 15 is blocked by the locking portion 11, so that the rotation of the lever 15 is restricted. Is done.

  As shown in FIG. 4 (c), the locked portion 12 has a lever 15 that is close to the stroke start end by θ with respect to the entry position of the locking portion 11 shown in FIG. 4 (d), that is, counterclockwise. In this rotating embodiment, it is arranged clockwise. θ is the angle at which the lever 15 rotates due to the inertial force of the handle body 13 during the time (response time) from when the vehicle receives a side collision or the like until the locking portion 11 enters the through hole 15b by the solenoid 8. It is set to be large and equal to or less than the rotation angle for unlocking the door lock device 5.

  Therefore, in this embodiment, when an impact of a predetermined value or more is applied to the vehicle, the locking portion 11 enters the through hole 15b to restrict the rotation of the lever 15 and prevent the operation force from being transmitted to the cable 17. When the energization of the solenoid 8 is stopped after a predetermined time has elapsed from this state, the plunger 23 returns to the original position by the restoring force of the return spring 24, the restraint on the lever 15 is released, and thereafter the handle body 13 is used. The door 3 can be opened.

  FIG. 5 shows a modification of FIG. In this modification, the locking portion 11 is formed separately from the pivot 22 of the lever 15, and is fitted to the rotation stop notch 10 a of the handle base 10 and is prevented from rotating. The solenoid 8 to which the locking portion 11 is connected is a push-type solenoid 8 in which the plunger 23 is in a protruding state in an excited state (see FIG. 5B). In the protruding state, the locking portion 11 is a lever 15. And the rotation of the lever 15 is restricted. When the power supply to the solenoid 8 is stopped from the restricted state, the return state is restored to the suction state by the restoring force of the return spring 24, and the lever 15 can be rotated.

  FIG. 6 shows a second embodiment of the present invention. This embodiment shows a modification in which the handle main body 13 is restrained by the locking portion 11, and a locking projection 13c is provided at the lower end of the operation projection 13b of the handle main body 13, The upper surface is the locked portion 12.

  The locking portion 11 is pivotally supported at one end on the handle base 10 and formed in a lever shape. The locking portion 11 has an operation force transmission position shown in FIG. 6A and a transmission restriction position shown in FIG. Move between. The locking portion 11 is biased toward the operating force transmission position by a torsion spring (not shown). A play dimension (L) is set between the locked portion 12 and the locking portion 11 in consideration of the response time of the locking portion 11.

  The solenoid 8 for driving the locking portion 11 is a push type solenoid 8 from which the plunger 23 protrudes by excitation, and a cap 25 for taking a reaction force of the return spring 24 is fixed to the solenoid case 8a. The

  Therefore, in this embodiment, when the impact detection unit 2 detects an impact, the locking unit 11 moves to the transmission regulation position shown in FIG. 6B and regulates the movement of the handle body 13. Thereafter, when the energization of the solenoid 8 is stopped, the plunger 23 is returned to the initial position by the return spring 24, and accordingly, the locking portion 11 is returned to the operating force transmission position, and the operation to the handle body 13 is performed. It becomes possible.

  In the above description, the door handle device A configured to convert the operating force of the handle main body 13 by the lever 15 and transmit it to the door lock device 5 has been described. It is also possible to constitute a door handle device A in which a cable 17 or the like is directly connected.

It is a figure which shows this invention. It is a figure which shows a door handle apparatus, (a) is a front view, (b) is the 2B-2B sectional view taken on the line of (a). It is a figure which shows operation | movement of a door handle apparatus, (a) is the sectional view on the 3A-3A line of FIG.2 (b), (b) is a figure which shows the state which the handle | steering body moved from the state of (a). 4A and 4B are views showing the operating force transmission restricting means, where FIG. 3A is a cross-sectional view taken along line 4A-4A in FIG. 3A, FIG. 4B is a diagram showing a state in which a solenoid is excited from the state of FIG. FIG. 4A is a sectional view taken along line 4C-4C in FIG. 4A, and FIG. 4D is a diagram showing a state in which the solenoid from the state in FIG. FIGS. 5A and 5B are diagrams illustrating a modification of FIG. 4, in which FIG. 5A is a diagram illustrating a solenoid excitation state, and FIG. 5B is a diagram illustrating a solenoid non-excitation state; It is a figure which shows 2nd Embodiment, (a) is sectional drawing, (b) is a figure which shows a solenoid non-excitation state, (c) is a figure which shows a solenoid excitation state.

Explanation of symbols

2 Shock detection unit 3 Door 4 Unlocking unit 5 Door lock device 6 Opening operation unit 7 Locking operation unit 8 Actuator (solenoid)
9 Operating force transmission regulation means
10 Handle base 11 Locking part 12 Locked part 13 Handle body 14 Counterweight 15 Lever

Claims (5)

An impact detector for detecting impact on the vehicle;
A door lock device that restrains the vehicle door in the locked state and releases the locked state by applying a release operation force to the unlocking unit;
A lock operation means including an opening operation portion, and transmitting the unlocking operation force to the opening operation portion to the unlocking portion to release the locked state of the door lock device;
The actuator is driven from the operation force transmission position to the transmission restriction position by the actuator driven by the output of the shock detection signal in the shock detection section, and the transmission of the unlocking operation force from the lock operation means to the lock release section is prohibited at the transmission restriction position. Operating force transmission regulation means;
A vehicle door opening control system. A vehicle door handle device that shifts a door lock device fixed to a vehicle to an unlocked state by an opening operation to an opening operation unit that is movably held by a handle base fixed to a vehicle door,
The locking portion disposed on one of the handle base and the opening operation portion is moved from the operation force transmission position to the transmission restriction position, and is locked to the locked portion formed on the other, thereby restraining the opening operation portion. Having operating force transmission regulation means,
The locking portion is driven by an output of an impact detection signal from an impact detection portion disposed in the vehicle,
The locked portion comes into contact with the locking portion before the unlocking stroke position of the opening operation portion with respect to the door lock device and at a position exceeding the stroke position corresponding to the response time of the locking portion from the impact load on the vehicle. A vehicle door handle device formed by possible wall surfaces.   The vehicle door handle device according to claim 2, wherein the locking portion releases the restraint on the locked portion after a predetermined time has elapsed after moving to the transmission restriction position.   4. The door handle device for a vehicle according to claim 3, wherein the actuator is a solenoid that drives the locking portion to a transmission restricting position in an excited state and returns to the original position in a non-excited state. The opening operation part is
A handle body rotatably connected to the handle base;
A lever having a counterweight that is rotatably connected to the handle base and is rotated by an unlocking operation of the handle body, and generates a rotational force in the opposite direction to the rotation operation direction by the handle body when an impact is applied. ,
5. The door handle device according to claim 2, wherein the locking portion restricts rotation of the lever and restricts transmission of an unlocking operation force to the door lock device.

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