JP2007002520A - Childproof door lock operating device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the operability of a childproof door lock without an increase in cost by enabling the operation of a childproof door lock means and the unlatching of a door latch, without increasing the number of actuators as driving means. <P>SOLUTION: This childproof door lock operating device for a vehicle comprises: the door latch which can hold a vehicle door in a closing position; the childproof door lock means 93 which can switch between the unlocked state of enabling the unlatching of the door latch, and the locked state of disabling it, through the door-opening operation of an inside handle 8 provided in the vehicle; and the driving means 14 which is linked to the means 93 and the door latch so as to change the state of changing the state of the means 93 into the unlocked one from the locked one and unlatches the door latch, by operating in one direction, and so as to change the state of the means 93 into the locked one from the unlocked one, by operating in the other direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a child lock operating device for a vehicle provided with a child lock means displaceable in an unlocked state and an unlocked state in which the door latch can be unlocked by opening operation of an inside handle provided in the vehicle. .

In particular, in a door latch operating device provided on the rear door of a vehicle, the door can be opened by opening the outside handle provided on the outside of the door, but by operating the inside handle provided on the inside of the vehicle. Has child-locking means that prevent the door from being opened. This child lock means prevents the door from opening due to misoperation, mischief, etc. of the inside handle by a child, especially during traveling of the vehicle. (See, for example, Patent Document 1).
JP 2005-138696 A

  However, in the operating device disclosed in Patent Document 1, when the child lock means is in the locked state, the rear seat occupant cannot open the door from the inside of the vehicle. It is necessary to open the door by unlatching the door latch by operating the handle, which has a problem that it is extremely inconvenient.

  This problem can be solved by performing the operation of the child lock means and the latch release operation of the door latch by the power of the actuator constituted by a motor or the like. However, in this case, two actuators, that is, an actuator for operating the child lock means and an actuator for unlatching the door latch are required, which causes a problem of increasing costs.

  In view of the above-described problems, the present invention allows a child drive operation for a vehicle to be reduced by operating the child lock device and unlocking the door latch by a single drive device. The object is to provide a device.

According to the present invention, the above problem is solved as follows.
(1) The door latch that can hold the vehicle door in the closed position and the opening operation of the inside handle provided in the vehicle can be displaced into an unlocked state that enables the latch release of the door latch and a locked state that disables the door latch. The child lock means and the operation in one direction displaces the child lock means from the locked state to the unlocked state and unlatches the door latch, and the operation in the other direction unlocks the child lock means. The child lock means and the drive means linked to the door latch are provided so as to be displaced from the locked state to the locked state.

(2) In the above item (1), when the child lock means is in the unlocked state, the drive means operates in one direction triggered by the opening operation of the inside handle.

According to the present invention, the following effects can be obtained.
(A) According to the first aspect of the present invention, the operation of the drive means in one direction displaces the child lock means from the locked state to the unlocked state, the latch of the door is released, and the operation in the other direction. Since the drive means is linked to the child lock means and the door latch so as to displace the child lock means from the unlocked state to the locked state, the child lock means can be operated and the door latch unlatched with a single drive means. The cost can be reduced.

(B) According to the invention described in claim 2, the child lock means can be displaced from the locked state to the unlocked state and the door latch can be unlatched upon the opening operation of the inside handle.

  Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is a side view of a vehicle to which the present invention is applied, FIG. 2 is a side view of a control unit, FIG. 3 is a back view of the control unit, and FIGS. FIG. In the following description, the left side in FIGS. 1, 2 and 4 to 10 and the right side in FIG. 3 are referred to as “front”, the right side in FIGS. The direction is “rear”.

  As shown in FIG. 1, the rear seat sliding door (1) in a minivan or wagon type vehicle is driven by a guide rail (3) (4) (5) provided on the side of the vehicle body (2). ) Fully opened from the fully closed position where the entrance / exit (2a) provided on the side of the vehicle is closed to the outside along the side surface of the vehicle body (2) while moving slightly outward from the outer surface of the vehicle body (2) It is supported to be openable and closable to position and vice versa.

  An outside handle (7) operated when the sliding door (1) is opened and closed from the outside of the vehicle is provided on the outside of the sliding door (1). An inside handle (8) is provided which is operated when opening and closing.

  A door opening / closing drive unit (6) for opening and closing the sliding door (1) by the power of the motor is provided in the rear panel of the vehicle body (2). The door opening / closing drive unit (6) is connected to a motor (61) that can rotate forward and backward, a rotating drum (62) that can be rotated by the power of the motor (61), and a rear end of the slide door (1). And a cable (63) wound around the rotating drum (62) so as to be wound and fed out, and the rotating drum (62) is rotated in a predetermined direction by the power of the motor (61), and the cable (63 ) Is wound around the rotating drum (62), the sliding door (1) can be moved in the opening direction or the closing direction. The motor (61) is driven and controlled by a control circuit device (100), which will be described later, mounted at an appropriate position on the vehicle body (2).

  Inside the sliding door (1), the front door is fully closed so that the sliding door (1) can be held in the fully closed (closed) position by engaging with a striker (not shown) provided on the vehicle body (2) side. The sliding door (1) is held in the fully open position by engaging the closing door latch (10) and the rear side full closing door latch (11) with a striker (not shown) provided on the vehicle body (2) side. The operation force of the fully open latch (12) and the outside handle (7) and the inside handle (8) is input, and the input operation force is input to each fully closed door latch (10) (11) and the fully open latch (12). And a first actuator (14) serving as a driving means for displacing the control unit (9) to each state to be described later by the power of the motor. The rear-side fully-closed door latch (11) has a known door closer (11a) that forcibly moves the slide door (1) from the half-door state to the fully-closed state by the power of the motor. Yes.

  As shown mainly in FIG. 2, the inside handle (8) is normally held in the neutral position, and is opened from the neutral position (in the direction of arrow A in FIG. 2), thereby allowing the inside handle (8) to pass through the control unit (9). Each of the fully-closed door latches 10 and 11 can be unlatched to open the slide door 1 from the fully-closed position, and is closed from the neutral position (in the direction of arrow B in FIG. 2). As a result, the latch for full opening (12) can be released from the latch and the slide door (1) can be closed from the fully opened position.

  The first actuator (14) includes a motor (141) (see FIGS. 11 and 12) that can be rotated in the forward and reverse directions controlled by a control circuit device (100) that constitutes a control means. 2, the unlocking / release lever (14a) is rotated in the direction of arrow C in FIG. 2, and the locking lever (14b) is rotated in the direction of arrow D in FIG.

  As shown mainly in FIGS. 2 and 3, the control unit (9) is provided on the base plate (91) fixed to the inner panel of the sliding door (1) to enable the opening operation of the inside handle (8). When the first child lock means (92) and the first child lock means (92), which can be manually moved to the locked state and the locked state to be disabled, are unlocked, the inside handle (8) is opened. Both the second child lock means (93) and the first and second child lock means (92) (93) that can be displaced by the power of the first actuator (14) in the unlocked state to be enabled and the locked state to be disabled Unlocking and unlocking means (94) displaceable in an unlocked state and an inactivated locked state for enabling the opening operation of the inside handle (8) and the outside handle (7) when in the unlocked state; By the power of the unlocking means (94) motor and a second actuator (95) for displacing each state, and a cancel lever (96) connected to the door closer (11a).

  The cancel lever (96) is pivotally supported on the base plate (91) by the pivot (945), and is rotated in the cancel direction (clockwise in FIG. 2) from the standby position (for example, see FIG. 2). A cancel mechanism (not shown) provided in the door closer (11a) is operated via a connecting member (not shown). The cancel mechanism cuts the linkage between the door closer (11a) and the rear side fully closed door latch (11) and cancels the operation of tightening the sliding door (1) from the half door to the fully closed position by the door closer (11a). Let

  The first child lock means (92) is pivotally attached to the base plate (91) and has an input shaft (921) with an inside handle (8) fixed to one end facing the vehicle interior, and an input shaft (921). The first input lever (922) and the fail-safe lever (923) that can rotate integrally with the inside handle (8) and the opening operation force of the inside handle (8) when unlocked are the second child. A first output lever (924) capable of transmitting to the locking means (93); a first child lock lever (925) which can be moved to an unlocked position (925A) and a locked position (925B) by manual operation; A child lock detection sensor (97a) capable of detecting each position of the child lock lever (925) and a door opening operation detecting means capable of detecting the opening operation (clockwise in FIG. 2) of the first output lever (924). Open door operation detection sensor (97b) and fail safe lever (923) And a closing operation detection sensor (97c) capable of detecting the operation in the closing direction (counterclockwise in FIG. 2).

  The first input lever (922) is pivotally supported on the back side of the base plate (91) so that it can rotate integrally with the inside handle (8) via the input shaft (921). The spring (926) wound around (921) (see FIG. 3) is held in the neutral position (FIGS. 2, 3, 5 and 9) together with the inside handle (8). On the contrary, the inside handle (8) is rotated from the neutral position to the door opening direction (clockwise in FIG. 2) by the door opening operation (arrow A direction). Further, the first input lever (922) is provided with an engaging portion (922a) protruding forward.

  The fail safe lever (923) is pivotally supported on the surface side of the base plate (91) so as to be able to rotate integrally with the inside handle (8) via the input shaft (921). 8) It can be rotated from the neutral position to the door opening direction (clockwise in FIG. 2) and the door closing direction (counterclockwise in FIG. 2).

  The fail-safe lever (923) includes a first connecting portion (923a) having a long hole connected to the fully open latch (12) via the cable (20) and a cancel lever via the link (21) in the left-right direction. And a second connecting portion (923b) having a long hole connected to (96). When the fail-safe lever (923) is rotated in the opening direction, the cancel lever (96) is rotated in the cancel direction via the link (21), and when the fail-safe lever (923) is rotated in the closing direction, the cable (20) is connected. To release the latch (12) for full opening and release the engagement with the striker.

  The first output lever (924) is pivotally supported by the input shaft (921) on the back side of the base plate (91) so that it can rotate independently of the first input lever (922) and the failsafe lever (923). In addition, a long hole (924a) in the front-rear direction is provided in the front part, and a second input to be described later of the second child lock means (93) is provided in the lower part via a link (928) in the front-rear direction. An arm portion (924b) connected to the lever (931) is provided. A sliding pin (929) that can move based on the operation of the first child lock lever (925) is slidably fitted in the long hole (924a).

  The first child lock lever (925) is pivotally supported by the pivot (927) on the back side of the base plate (91), and the manual operation portion (925a) provided at the front is manually operated to unlock the first child lock lever (925). It moves to the lock position (925A) and the lock position (925B) and is held at that position.

  In the upper part of the first child lock lever (925), there is provided a long hole (925b) in the vertical direction in which the sliding pin (929) is loosely fitted. The manual operation portion (925a) is exposed from the front end surface of the slide door (1), can be operated when the slide door (1) is opened, and is hidden and cannot be operated when the door is closed.

  When the first child lock lever (925) is in the unlocked position (925A) (see, for example, FIG. 2), the sliding pin (929) is located behind the slot (924a) of the first output lever (924). It is located at the end and can be engaged clockwise with the engaging portion (922a) of the first input lever (922). In this state, when the first input lever (922) rotates in the door opening direction based on the opening operation (in the direction of arrow A) of the inside handle (8), the engaging portion (922a) is moved to the sliding pin ( 929), the first output lever (924) can be rotated, for example, from the neutral position shown in FIG. 2 in the door opening direction (clockwise).

  When the first child lock lever (925) is in the locked position (925B) (see, for example, FIG. 9), the sliding pin (929) is positioned at the front end of the long hole (924a), The input lever (922) is in a state where it cannot engage with the engaging portion (922a). Therefore, in this state, even if the first input lever (922) rotates from the neutral position to the door opening direction based on the opening operation (in the direction of arrow A) of the inside handle (8), the engaging portion ( Since 922a) does not engage with the sliding pin (929), the first output lever (924) cannot be rotated in the door opening direction.

  The state where the first child lock lever (925) is in the unlocked position (925A) is defined as the unlocked state of the first child lock means (92), and the first child lock lever (925) is locked. The state at the position (925B) is defined as the locked state of the first child lock means (92).

  The second child lock means (93) is connected to the first output lever (924) via the link (21), and the second input capable of inputting the opening operation force output from the first output lever (924). When the lever (931) is in the unlocked state, the second output that can transmit the opening operation force input by the second input lever (931) to the third input lever (942) described later of the locking / unlocking means (94). A lever (932) and a second child lock lever (933) that can be moved to the unlock position (933A) and the lock position (933B) by the power of the first actuator (14) are provided.

  The second input lever (931) and the second output lever (932) are pivotally supported on the back side of the base plate (91) so that they can be independently rotated by the pivot (934).

  When the first output lever (924) of the first child lock means (92) rotates from the neutral position to the door opening direction, the second input lever (931) is interlocked with the standby position (FIG. 2). 3, 5, 9, and FIG. 10) rotate in the door opening direction (for example, counterclockwise in FIG. 2). The second input lever (931) has an arc hole portion (931a) centered on the pivot (934) and a straight hole portion (931b) extending downward from the front end of the arc hole portion (931a). Is provided.

  The second output lever (932) has an elongated hole (932a) in the vertical direction that overlaps with the arc hole (931a) and the straight hole (931b) of the second input lever (931), and is provided at the top. The end of the link (941) connected to the third input lever (942) of the locking / unlocking means (94) is loosely fitted in the left and right elongated hole (932b).

  The arc hole (931a), straight hole (931b) of the second input lever (931) and the long hole (932a) of the second output lever (932) are based on the movement of the second child lock lever (933). An engaging portion (936a) of a second connecting lever (936), which will be described later, is slidably fitted.

  The second child lock lever (933) is pivotally supported by a pivot shaft (937) on the back surface side of the base plate (91), and the arcuate elongated hole (933a) provided at the lower end portion has a first actuator ( 14) The connecting portion (15a) of the cable (15) connected to the unlocking and releasing lever (14a) is slidably fitted from the front, and the upper portion of the elongated hole (933a) is The connecting portion (16a) of the cable (16) connected to the locking lever (14b) of one actuator (14) is connected from the rear.

  A first connection lever (935) is pivotally supported on the pivot (937) pivotally supporting the second child lock lever (933) so as to be able to rotate independently of the second child lock lever (933). . The first connecting lever (935) is urged, for example, clockwise in FIG. 2 against the second child lock lever (933) by a spring (938) wound around the pivot (937), and is always in contact with it. The portion (935a) is held at a position (see FIGS. 2 to 6, 9 and 10) in contact with the bent piece (933b) of the second child lock lever (933).

  The lower end of the second connection lever (936) is connected to the rear end portion of the first connection lever (935) by a pivot (939). As described above, the engagement portion (936a) of the second connection lever (936) includes the arc hole portion (931a), the straight hole portion (931b), and the second output lever (932) of the second input lever (931). The long hole (932a) is slidably fitted.

  The connection means in the present invention is constituted by the first and second connection levers (935) (936), but may be constituted by either the first or second connection lever (935) (936). good

  When the second child lock lever (933) is in the unlocked position (933A), the engaging portion (936a) of the second connection lever (936) is in the straight hole (931b) of the second input lever (931). At the lower end, that is, at the connection position, the second input lever (931) and the second output lever (932) are connected (see FIGS. 2 to 4, 9, and 10). As a result, when the second input lever (931) rotates from the standby position (for example, see FIG. 2) to the door opening direction (counterclockwise in FIG. 2), the second output lever (932) is , Engages with the engaging portion (936a) of the second connecting lever (936), rotates together with the second input lever (931) in the door opening direction, and transmits the operating force to the locking / unlocking means (94). .

  When the second child lock lever (933) is in the locked position (933B), the engagement portion (936a) of the second connection lever (936) is the arc hole portion (931a) of the second input lever (931). At the cutting end (see FIG. 5), the connection relationship between the second input lever (931) and the second output lever (932) is cut off. Thereby, even if the second input lever (931) rotates in the door opening direction, the engaging portion (936a) of the second connection lever (936) moves relatively rearward in the arc hole portion (931a). Only by doing so (see FIG. 6), the opening operation of the second input lever (931) cannot be transmitted to the second output lever (932).

  The state where the second child lock lever (933) is in the unlocked position (933A) and the second connection lever (936) is in the connected position is defined as the unlocked state of the second child lock means (93). In addition, the state where the second child lock lever (933) is in the lock position (933B) and the second connection lever (936) is in the cut position is defined as the lock state of the second child lock means (93). To do.

  The locking / unlocking means (94) includes a third input lever (942) connected to the second output lever (932) of the second child lock means (93) via a link (941), and a third input lever (942). ) Input the opening operation force input to each fully-closed door latch (10) (11), the third output lever (943), and the unlocking and unlocking operation knob (inside the sliding door (1)) The locking / unlocking lever (944) which can be moved from the unlocking position (see each figure) and the locking position rotated by a predetermined amount in the clockwise direction in FIGS. And a latch release detection sensor (97d) capable of detecting the operation of the third input lever (942).

  The third input lever (942) is pivotally supported by the pivot (945) on the back side of the base plate (91), and the third output lever (943) is pivotally supported by the pivot (945) on the surface of the base plate (91). Further, the locking / unlocking lever (944) is pivotally supported by the pivot (946) on the surface side of the base plate (91).

  The lower end of the third input lever (942) is connected to the second output lever (932) of the second child lock means (93) via a link (941), and an arcuate shape provided at the rear end. In the long hole (942a), the cable (17a) connected to the unlocking / release lever (14a) of the first actuator (14) and the cable connected to the outside handle (7) (Not shown) are connected to each other.

  The third input lever (942) is operated by the second child lock means (93) in the opening direction of the second output lever (932) and the unlocking / release lever (14a) of the first actuator (14). Is rotated from the standby position (FIGS. 2, 3, 5, 6, 9 and 10) to the latch release position (FIGS. 4, 7 and 8).

  The lower end of the third output lever (943) is connected to the full-close door latches (10) and (11) via the cables (18) and (19).

  When the unlocking lever (944) is in the unlocked position, the third input lever (942) and the third input lever (942) are connected to the third output lever (943) so that the opening operation of the third input lever (942) is transmitted to the third output lever (943). The third input lever (942) is connected so that the opening action of the third input lever (942) is not transmitted to the third output lever (943) when connected to the third output lever (943) and in the locked position. ) And the third output lever (943) are disconnected. Therefore, when the locking / unlocking lever (944) is in the locked position, the outside handle (7) and the inside handle (the inside handle (7) are independent of the state of the first child lock means (92) and the second child lock means (93)). The sliding door (1) cannot be opened by disabling the opening operation of 8).

  Next, the control circuit will be described with reference to FIG. A control circuit device (100) that constitutes a control means includes a CPU (Central Processing Unit) that executes a series of control processes in accordance with a program stored in advance, a ROM (Read Only Memory) that stores programs and data, and And a RAM (Random Access Memory) that functions as a work area for the CPU. Its input interface includes a child lock detection sensor (97a), a door opening operation detection sensor (97b), and a door closing operation detection sensor. (97c), latch release detection sensor (97d), vehicle speed sensor (101) for detecting the running of the vehicle, foot brake sensor (102) for detecting the operation of the foot brake (not shown), operation of the parking brake (not shown) The parking brake sensor (103) for detecting the gear and the P position sensor (104) for detecting that the gear is in the P position are respectively connected. The output interface is connected to a motor (61) of the door opening / closing drive unit (6), a motor (141) of the first actuator (14) and a motor (not shown) of the second actuator (95). Based on the vehicle travel signal output from the sensor (101), lock drive control for reversing the motor (141) of the first actuator (14) is executed, and output from the door opening operation detection sensor (97b). Based on the door opening operation signal, unlock drive control is performed to rotate the motor (141) forward.

  When the child lock detection sensor (97a) detects the unlock position of the first child lock lever (925), it outputs a HIGH signal (child unlock signal) and also detects the lock position. , LOW signal (child lock signal) is output.

  The door opening operation detection sensor (97b) outputs a HIGH signal (door opening operation signal) when detecting the rotation of the first output lever (924) in the door opening direction, and outputs a LOW signal otherwise. .

  The closing operation detection sensor (97c) outputs a HIGH signal (closing operation signal) when it detects the turning of the fail safe lever (923) in the closing direction due to the closing operation of the inside handle (8). Output LOW signal.

  The latch release detection sensor (97d) outputs a HIGH signal (latch release signal) when detecting the operation of the third input lever (942) in the door opening direction, and outputs a LOW signal otherwise.

Next, control of the control circuit device (100) will be described with reference to a time chart shown in FIG.
As shown in the area (a) in FIG. 12, when the output signal of the vehicle speed sensor (101) becomes HIGH (in other words, when the vehicle starts to run), if the output signal of the child lock detection sensor (97a) is HIGH, The motor (141) of the first actuator (14) is reversely driven (direction in which the locking lever (14b) operates).

  As shown in region (b), when the output signal of the vehicle speed sensor (101) is HIGH, even if the output signal of the door opening operation detection sensor (97b) is HIGH, the motor ( 141) is not controlled.

  As shown in region (c), the output signal of the vehicle speed sensor (101) is LOW (in other words, when the vehicle is stopped), and the vehicle stop signal (x) is LOW (foot brake sensor (102), parking) When all the signals of the brake sensor (103) or P position sensor (104) are LOW), the motor (141) of the first actuator (14) even if the signal of the door opening operation detection sensor (97b) becomes HIGH The drive is not controlled.

  As shown in region (d), the output signal of the vehicle speed sensor (101) is LOW and the vehicle stop signal (x) is HIGH (foot brake sensor (102), parking brake sensor (103) or P position sensor (104). When the output signal of the door opening operation detection sensor (97b) becomes HIGH when any of the output signals is high, the motor (141) of the first actuator (14) is rotated forward (unlock / release lever ( 14a) Actuation direction) Drive control. Subsequently, when the output signal of the latch release detection sensor (97d) becomes HIGH (in other words, when the third input lever (942) rotates in the opening direction), the motor (61) of the door opening / closing drive unit (6). Is controlled in the forward direction (the opening direction of the sliding door (1)).

  As shown in the area (e), when the signal of the door closing detection sensor (97c) becomes HIGH, the motor (61) of the door opening / closing drive unit (6) is reversely driven (the door closing direction of the slide door (1)). .

  As shown in region (f), the output signal of the child lock detection sensor (97a) is LOW (in other words, when the first child lock means (92) is in the locked state), and the door opening operation detection sensor (97b) Even if the output signal becomes HIGH, the drive (141) of the first actuator (14) is not controlled.

Next, the operation in each state according to the present invention will be described. In each of the following states, the locking / unlocking means (94) is in the unlocked state.
(A. When the vehicle is stopped, the first child lock means (92) and the second child lock means (93) are both unlocked (see region (d) in FIGS. 2 to 4 and 12)).
In the state shown in FIGS. 2 and 3, when the inside handle (8) is operated in the door opening direction (arrow A direction), the operating force is transmitted through the input shaft (921) to the first child lock means (92 ) And is transmitted from the first output lever (924) to the second input lever (931) of the second child lock means (93).

  As a result, as shown in FIG. 4, the door opening operating force input to the second input lever (931) of the second child lock means (93) is transferred via the second output lever (932). (94) is transmitted to the third input lever (942) and the third output lever (943). At the same time, based on the opening operation of the first input lever (922), the output signal of the opening operation detection sensor (97b) becomes HIGH, so the motor (141) of the first actuator (14) Forward drive control is performed. As a result, the unlock / release lever (14a) of the first actuator (14) is actuated, and this power is transmitted to the third input lever (942) via the cable (17). As a result, the opening operation force of the inside handle (8) is assisted by the power of the first actuator (14), and each fully closing latch (10) (11) is set via the third output lever (943). The sliding door (1) can be opened by operating the release.

  After the latch of each fully-closed door latch (10) (11) is released, the output signal of the latch release detection sensor (97d) becomes HIGH based on the opening operation of the third input lever (942), and the door opening / closing drive unit The motor (61) of (6) is controlled to rotate forward and the slide door (1) is moved toward the fully open position by the power.

(B. When the vehicle travels with the first child lock means (92) unlocked (refer to the regions (a) and (b) of FIGS. 5, 6 and 12))
When the vehicle speed sensor (101) detects the traveling of the vehicle and the output signal becomes HIGH (vehicle traveling signal), the motor (141) of the first actuator (14) is driven in reverse drive control (lock drive control). And actuate the locking lever (14b). Accordingly, as shown in FIG. 5, the second child lock means (93) is displaced from the unlocked state to the locked state via the cable (16).

  In this state, since the second child lock means (93) is in the locked state even when the first child lock means (92) is in the unlocked state, as shown in FIG. When the door is opened, the operating force is transmitted to the second input lever (931) of the second child lock means (93) via the first child lock means (92), but the second output Since it is not transmitted to the lever (932), each fully-closed door latch (10) (11) cannot be unlatched. Further, since the output signal of the vehicle speed sensor (101) is HIGH, the motor (141) of the first actuator (14) is not driven and controlled even when the output signal of the door opening operation detection sensor (97b) becomes HIGH.

  As a result, even if the first child lock means (92) is forgotten to be locked before the vehicle travels, the second child lock means (93) is displaced to the locked state when the vehicle travels. Even if the inside handle (8) is opened by mistake, mischief or the like, the slide door (1) cannot be opened, and it is possible to reliably prevent the slide door (1) from being opened by mistake.

(C. When the first child lock means (92) is unlocked and stopped after traveling the vehicle)
If the vehicle speed sensor (101) only detects the stop of the vehicle, the rear-seat occupant does not necessarily have the intention to get off, so the locked state of the second child lock means (93) is maintained as it is. Also, when the vehicle travels in this state, the locked state of the second child lock means (93) is maintained. By doing so, the first actuator (14) and the second child lock means (93) do not operate each time the stop and travel are repeated, so that useless operation and operation noise can be eliminated.

(D. When the vehicle is stopped, the first child lock means (92) is unlocked, the second child lock means (93) is locked, the vehicle stop signal (x) is LOW, and the inside handle (8) is opened. When operated (refer to area (c) in FIGS. 5, 6 and 12))
In this state, even if the first child lock means (92) is in the unlocked state and the second child lock means (93) is in the locked state, even if the inside handle (8) is opened, The operating force is not transmitted to each fully closing door latch (10) (11). Further, since the vehicle stop signal (x) is LOW, that is, the vehicle is not stopped in a safe state, even if the output signal of the door opening operation detection sensor (97b) becomes HIGH, the first actuator (14 ) Motor (141) is not driven. As a result, it is safe because the sliding door (1) cannot be opened unless the vehicle is in a safe stop state.

(E. When the vehicle is stopped, the first child lock means (92) is unlocked, the second child lock means (93) is locked, the vehicle stop signal (x) is HIGH, and the inside handle (8) is opened. When operated (see region (d) in FIGS. 6 to 8 and 12))
As shown in FIG. 6, the opening operation force of the inside handle (8) is changed from the first output lever (924) of the first child lock means (92) to the second input lever (93) of the second child lock means (93). 931). At this time, the second child lock lever (933) is in the locked position (933B), and the engaging portion (936a) of the second connection lever (936) is the arc hole (931a) of the second input lever (931). Since only the second input lever (931) operates in the door opening direction, the engaging portion (936a) of the second connection lever (936) is connected to the second input lever. The arc hole (931a) of (931) is moved relatively rearward.

  Further, almost simultaneously with or immediately after this operation, the output signal of the opening operation detection sensor (97b) becomes HIGH based on the opening operation of the inside handle (8), and the motor (141 of the first actuator (14)). ) Is normally driven (unlocked).

  As a result, as shown in FIG. 7, based on the forward rotation of the first actuator (14), the second child lock lever (933) of the second child lock means (93) is connected via the cable (15). It is moved from the locked position to the unlocked position. At this time, since the engaging portion (936a) of the second connecting lever (936) is engaged with the circular arc hole portion (931a) and the downward movement (in the connecting position direction) is restricted, the second connecting lever With the engaging portion (936a) of (936) engaged with the arc hole portion (931a), only the second child lock lever (933) is released from the locked position against the urging force of the spring (938). It will move to the locked position. Thereafter, when the opening operation force of the inside handle (8) is released and the second input lever (931) returns to the standby position as shown in FIG. 8, the engaging portion (936a) of the second connection lever (936) is restored. ) Disengages from the arc hole (931a) and moves to the lower end (connection position) of the straight hole (931b) by the urging force of the spring (938). As shown in FIG. (93) is displaced to the unlocked state.

  At the same time, the third input lever (942) of the locking / unlocking means (94) is moved via the cable (17) by the operation of the unlocking / release lever (14a) of the first actuator (14). The latch is unlocked via the third output lever (943) and cables (18), (19), and then the latch release detection sensor ( When the output signal of 97d) becomes HIGH, the motor (61) of the door opening / closing drive unit (6) is controlled to rotate forward, and the slide door (1) is moved in the door opening direction.

  Thereby, based on the opening operation of the inside handle (8), the unlocking operation of the second child lock means (93) and the latch releasing operation of each fully-closed door latch (10) (11) can be performed at once. it can. Also, by opening the inside handle (8), the latch release force by the inside handle (8) is reduced by releasing the latches of the full-close door latches (10) and (11) at a time. improves.

(F. When the first child lock means (92) is in the locked state and the second child lock means (93) is in the unlocked state (see region (f) in FIGS. 9, 10 and 12))
When the vehicle is stopped, the sliding door (1) is opened and the manual operation portion (925a) of the first child lock lever (925) in the first child lock means (92) is manually operated in the locking direction. As shown, the first child lock means (92) is displaced to the locked state. In this state, as shown in FIG. 10, even if the inside handle (8) is opened, the opening operation force is blocked by the first child lock means (92). The door latches (10) and (11) cannot be unlatched and the sliding door (1) cannot be opened.

  If the first child lock means (92) is locked by manual operation before the vehicle travels, the countermeasure for erroneous operation of the inside handle (8) during vehicle travel can be achieved by locking the first child lock means (92). Secured by. Therefore, in this case, even if the vehicle speed sensor (101) detects the vehicle speed, the second child lock means (93) does not need to be locked.

  As described above, in the present invention, the second child lock means (93) is displaced from the locked state to the unlocked state by the forward drive (operation in one direction) of the first actuator (14) that constitutes the drive means. At the same time, the door latches (10) and (11) for full closing are unlatched, and the second child lock means (93) is displaced from the unlocked state to the locked state by reverse rotation driving (operation in the other direction). In addition, since the second child lock means (93) and each fully-closed door latch (10) (11) are linked to each other, a single first actuator (14) is used to operate the second child lock means (93). Each fully-closed door latch (10) and (11) can be unlatched, and the cost can be reduced.

Although the embodiments of the present invention have been described above, the following various modifications and changes can be made to the embodiments without departing from the scope of the present invention.
(I) The door (1) is replaced with a sliding door, and is a side swing door or a back door.
(Ii) The power of the first actuator (14) is other than the motor.
(Iii) The first child lock means (92) can be displaced in each state by the power of the drive means, and the second child lock means (93) can be displaced in each state by manual operation.

1 is a side view of a vehicle to which an embodiment of the present invention is applied. It is a side view of a drive unit. It is a reverse view of a drive unit. It is operation | movement explanatory drawing of a control unit when both a 1st child lock means and a 2nd child lock means are in an unlocked state. It is operation | movement explanatory drawing of a control unit when a 1st child lock means is in an unlocked state, and a 2nd child lock means is in a locked state. It is operation | movement explanatory drawing of a control unit when an inside handle is operated to open a door when the 1st child lock means is in an unlocked state and the 2nd child lock means is in a locked state while the vehicle is traveling. It is operation | movement explanatory drawing of a control unit when an inside handle is operated to open the door when the first child lock means is in the unlocked state and the second child lock means is in the locked state when the vehicle is stopped. It is operation explanatory drawing which expanded the principal part. It is operation | movement explanatory drawing of a control unit when a 1st child lock means is a locked state, and a 2nd child lock means is an unlocked state. It is operation | movement explanatory drawing of a control unit when an inside handle is operated to open the door when the first child lock means is in the locked state and the second child lock means is in the unlocked state. It is a block diagram which shows a control circuit. It is a time chart figure.

Explanation of symbols

(1) Sliding door (door)
(2) Body
(2a) Entrance
(3) (4) (5) Guide rail
(6) Door open / close drive unit
(7) Outside handle
(8) Inside handle
(9) Control unit
(10) Front side fully closed door latch (door latch)
(11) Rear side fully closed door latch (door latch)
(11a) Door closer
(12) Fully open latch
(14) First actuator (drive means)
(14a) Unlock release lever
(14b) Locking lever
(15) Cable
(15a) Connecting part
(16) Cable
(16a) Connecting part
(17) Cable
(17a) Connecting part
(18) (19) (20) Cable
(21) Link
(61) Motor
(62) Rotating drum
(63) Cable
(91) Base plate
(92) First child lock means
(93) Second child lock means (child lock means)
(94) Locking and unlocking means
(95) Second actuator
(96) Cancel lever
(97a) Child lock detection sensor
(97b) Opening operation detection sensor
(97c) Closed door operation detection sensor
(97d) Latch release detection sensor
(100) Control circuit device (control means)
(101) Vehicle speed sensor
(102) Foot brake sensor
(103) Parking brake sensor
(104) P position sensor
(141) Motor
(921) Input shaft
(922) 1st input lever
(922a) Engagement part
(923) Fail safe lever
(923a) First connecting part
(923b) Second connecting part
(924) 1st output lever
(924a) Slotted hole
(924b) Arm
(925) 1st child lock lever
(925a) Manual operation unit
(925b) Long hole
(926) Spring
(927) Axis
(928) Link
(929) Sliding pin
(931) 2nd input lever
(931a) Arc hole
(931b) Straight hole
(932) 2nd output lever
(932a) (932b) Long hole
(933) 2nd child lock lever
(933a) Slotted hole
(933b) Folded piece
(934) Axis
(935) 1st connection lever (connection means)
(935a) Contact part
(936) Second connection lever (connection means)
(936a) Engagement part
(937) Axis
(938) Spring
(939) Axis
(941) Link
(942) 3rd input lever
(942a) Slotted hole
(943) 3rd output lever
(944) Locking lever
(945) (946) Axis

Claims (2)

A door latch capable of holding the vehicle door in the closed position;
A child lock means displaceable in an unlocked state and an unlocked state in which the door latch can be unlatched by an opening operation of an inside handle provided in the vehicle;
Operation in one direction displaces the child lock means from the locked state to the unlocked state and unlatches the door latch, and operation in the other direction changes the child lock means from the unlocked state to the locked state. A child lock operating device for a vehicle, comprising: the child lock means and a drive means linked to the door latch so as to be displaced.   2. The child lock operation device for a vehicle according to claim 1, wherein the drive means operates in one direction triggered by an opening operation of the inside handle when the child lock means is in the unlocked state.

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