JP2010037733A - Door locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door locking device capable of pulling a latch on a front side into a fully latched condition without reaching a mechanically restrained condition when closing a door. <P>SOLUTION: This door locking device includes locking parts J1, J2, J3 for holding the door at a closed position D1 by meshing the latches 661, 671 with strikers 662, 672, a latch driving means 81 for meshing the latches with the strikers through a fan-shaped operation member 82 to be swung by a motor M1 to switch the latch into the fully latched condition, and a controlling means 30. This door locking device is further provided with a front overrun detecting means 301 for detecting a position of the fan-shaped operation member 82 when the front latch 661 reaches a front overrun position B and a rear overrun detecting means 302 for detecting a position of the fan-shaped operation member 82 when the rear latch 671 reaches a rear overrun position C. The controlling means 30 rotates the motor M1 in one direction when closing the door, inverts it in the other direction when reaching the front overrun position B, and inverts it again when reaching the rear overrun position C. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a door locking device that locks a door that opens and closes an entrance / exit on a side wall of a vehicle when the door is closed.

One of the door opening and closing methods that opens and closes the door opening of the vehicle is a sliding mechanism that supports the sliding door slidably in the longitudinal direction of the vehicle using only the sliding mechanism provided at the center of the upper and lower sides of the sliding door. A vehicle equipped with a swing slide door that eliminates the above is known, and an example thereof is described in Patent Document 1.
By the way, when the door opening of the vehicle is held in the closed state by the swing slide door, for example, as shown in FIG. 13, the swing slide door 200 swings and is displaced by the parallel link 201 or the like to reach the closed position D1. At that time, the front and lower two lock portions J1 and J2 (only the upper portion is shown in FIG. 14) and the latches 202 in the rear rear lock portion J3 are engaged with the strikers 203, thereby swinging the slide. The door is locked to the door opening.

  When an electric power latch is used here, as shown in FIGS. 13 and 14, the latches 202, 202 ′ of the lock portions J1, J2, J3 at the upper and lower two places and the rear one place are provided. When the inner forks 204, 204 ′ are engaged with the strikers 203, 203 ′, first, the forks 204, 204 ′ in the respective latches 202, 202 ′ are in a half latch state (state indicated by solid lines) facing the strikers 203, 203 ′. ) Is detected by the pole switches SWP and SWP ′ (see the Ps position in FIG. 15).

  Further, after the half latch state is confirmed, the drive gear 206 and the switching lever 208 are driven forward by a motor (not shown) to switch the previous latch 202 to the full latch state (retraction operation by the power latch), and the pole switch SWP is The full latch position SW is detected by the full latch switch SWA. Here, the switching of the pole switch SWP and the detection of the full latch switch SWA are confirmed, and the motor is reversed and driven in reverse, the motor drives the rear side drive lever 207 in the reverse direction, and the subsequent latch 202 ′ is set to the full latch state. Switching (pull-in operation by power latch), the pole switch SWP ′ is switched, and it is detected by the full latch switch SWA ′ that the full latch position Pp ′ has been reached. After that, the motor is reversed again, and after a predetermined time ta, the motor returns to the origin position Pb and is switched to stop.

  In this case, as shown in FIG. 14, the two latches 202 (see FIG. 13) of the two upper and lower lock portions J1 and J2 on the front side of the swing slide door 200 are driven when the motor (not shown) is rotated forward. In addition, a system is employed in which the latch 202 of the rear lock portion J3 on the rear side is driven when the motor is reversely rotated.

Japanese Patent Publication No.7-84137

As described above, in the pull-in operation by the power latch, the full latch switch SWA is turned on and the pole switch SWP is switched, so that it can be confirmed that the front latch has been pulled into the normal full latch position Pp. In this way, the motor is reversed and the rear latch is pulled in.
However, there are cases where the door is tightened vigorously due to the relatively large power of the opening / closing mechanism or the influence of the degree of inclination of the road surface. In such a case, the front latch 202 reaches the full latch position (see the two-dot chain line in FIG. 14) from the normal half latch position (see the solid line in FIG. 14) without operating the power latch. The closed position moved beyond the full latch position indicated by 'is reached. In such a case, since the engaging claw 209 of the switching lever 208 is not engaged with the rear lever 207 (see the position of g1 in FIG. 14), the rear latch 202 cannot be directly pulled in.

  For this reason, the motor performs an operation of pulling the switching lever 208 from the front latch 202 in accordance with normal control. In this case, as indicated by a two-dot chain line in FIG. 14, the front latch 202 exceeds the full latch and is in the closed position (see Ps ′ in FIG. 15), so that the motor is stopped and reversed by the full latch SWA and the pole SWP. The situation that cannot be done occurs. For this reason, the motor always overruns (symbol “or” in FIG. 15) and mechanically restrains and stops, which may cause deformation and breakage of the latch mechanism and malfunction of the motor. Is desired.

  The present invention has been made on the basis of the above-described problems. The object of the present invention is that when the front latch is directly switched to the full latch position when the door is closed, the front latch is in a mechanically restrained state. It is an object of the present invention to provide a door locking device that can be pulled into a full latch without reaching, and that can reliably prevent deformation and breakage of a latch mechanism and a motor fixing failure.

  According to a first aspect of the present invention, a door that opens and closes a door opening of a vehicle body and a latch supported by either the door or the edge of the door opening are engaged with a striker fixed to the other. A door locking portion for holding the door in a closed position; and a latch driving means for switching from a half latch position to a full latch position by meshing the latch with the opposing striker via a swing operation member swinged by a motor. And a control means for driving and controlling the latch drive means, wherein the door lock portions are respectively provided on the front side and the rear side of the door opening, and the motor is driven to rotate in one direction. The swing when the latch of the front lock part reaches a predetermined front overrun position from the half latch position through the full latch position. A pre-overrun detecting means for detecting the position of the working member; and the motor is driven to rotate in the opposite direction opposite to the one direction so that the latch of the rear lock portion passes from the half-latch position to the full-latch position for a predetermined time. A rear overrun detecting means for detecting the position of the swing operation member when the overrun position is reached, and the control means when the latch of the front lock portion reaches the half latch state when the door is closed. The motor is driven to rotate in one direction, and when the front overrun detecting means detects that the latch of the front lock portion has reached the front overrun position, the motor is driven in reverse in the other direction, and then the rear When the overrun detection means detects that the latch of the rear lock portion has reached the rear overrun position, the motor is driven to reversely rotate. To.

  According to a second aspect of the present invention, in the door locking device according to the first aspect, the front overrun position and the rear overrun position are mechanically constrained by the full latch position and the retracting function of the latches, respectively. It is set to be between the overrun restraint positions.

  According to a third aspect of the present invention, in the door locking device according to the first or second aspect, the front overrun detecting means includes a swing operation member position detection switch for detecting a position of the swing operation member. And the rear overrun detecting means detects that each overrun position has been reached by detecting switching of an output signal of the swing operation member position detecting switch.

  According to a fourth aspect of the present invention, in the door locking device according to any one of the first to third aspects, after the rear overrun position is detected, the motor is re-inverted and driven after a predetermined time has elapsed. It is characterized by stopping.

  According to a fifth aspect of the present invention, in the door locking device according to the third or fourth aspect, after the rear overrun position is detected, the motor is re-inverted and driven, and then the swing operation member position detection switch is The second switching is detected and the motor is stopped.

  According to a sixth aspect of the present invention, in the door locking device according to any one of the third to fifth aspects, each of the switching operations from the swing amount branching transmission member linked to the swing operation member is performed by the latch driving means. The front and rear latches are switched from a half latch state to a full latch state with respect to the strikers by force.

  According to the first aspect of the present invention, the latch of the front lock portion reverses at the front overrun position from the half latch position through the full latch position, so that the latch of the front lock portion reaches the overrun restraint position where the latch is in a restrained state after overrun. In addition, since the latch of the rear lock part re-inverts at the rear overrun position from the half latch position through the full latch position, the latch of the rear lock part reaches the overrun restraint position where it enters a restraint state after the overrun. Therefore, the deformation and breakage of the latch mechanism and the sticking of the motor can be reliably prevented from these points. In particular, when the door closes vigorously, even if the latch of the front lock part of the door stops beyond the full latch position due to the large closing force, the latch of the front lock part is reversed at the front overrun position. In this respect as well, it is possible to reliably prevent deformation and breakage of the latch mechanism portion, sticking of the motor, and the like.

  According to the second aspect of the present invention, since the motor is reversed and re-reversed at the front overrun position and the rear overrun position before the retracting function of the latch is mechanically constrained, the latch falls into the mechanical constrained state. This can be prevented in advance, so that problems such as deformation and breakage of the latch mechanism and fixing of the motor do not occur.

  In the invention of claim 3, since the swing operation member position detection switch detects the position of the swing operation member, the front overrun detection means and the rear overrun detection means detect switching of the swing operation member position detection switch. Thus, it can be easily detected that the swing operation member interlocked with the motor has reached each overrun position. Further, since it is detected that the front / rear overrun position has been reached by detecting the switching of the output signal of one position detection switch, the number of parts can be reduced.

  In the fourth aspect of the invention, since the motor is stopped after a predetermined time has elapsed since the motor is driven again, the motor can be held at the origin position which is an appropriate stop position after the door is closed.

  According to the fifth aspect of the invention, since the motor is stopped by detecting the second switching of the swing operation member position detection switch, the second switching of the swing operation member position detection switch is performed after the motor is driven again. Since the motor is stopped after the detection, the motor can be held at the origin position which is an appropriate stop position after the door is closed.

  According to the sixth aspect of the invention, the swing of the swing operation member is distributed to two or more swing displacement transmission members and transmitted as an operation force, so that the front and rear latches are in a half latch state with respect to each striker. Further, it is possible to easily switch to the full latch state, and the swing amount branch transmission member can increase the degree of freedom of layout.

FIG. 1 shows a vehicle Ca to which a door locking device according to an embodiment of the present invention is applied.
The vehicle Ca is an automobile having a center pillar 5 and includes a front door 2 that opens and closes the left and right front entrances and exits 1 and a swing slide door (hereinafter simply referred to as a rear door) 4 that opens and closes each rear entrance and exit 3. .
The front door 2 is hinged at two front and lower locations h1 and h2 and is pivotably locked to the rear lock portion Jf at the middle of the center pillar 5 by using a latch and striker (not shown).
Prior to the description of the locking device for the rear door 4, the opening / closing device for the rear door 4 will be described first.

As shown in FIGS. 3 and 5, the rear door 4 is supported by the swing slide unit U and closes the rear entrance 3; a projecting position D2 projecting out of the vehicle from the closing position D1; and a rear position from the projecting position D2. The rear door 4 is equipped with a controller 30 that is slidably supported at the fully open position D3 slid and is controlled by the controller 30 to control its opening and closing.
As shown in FIG. 1, the swing slide unit U that constitutes a main part of the door opening / closing device of the rear door 4 is attached in the vicinity of an intermediate portion in the vertical direction of a rear pillar 60 provided along the rear entrance / exit 3 of the vehicle body.

As shown in FIGS. 3 and 5, the base member 15, which is the base of the swing slide unit U, forms a fixing member for the side wall of the vehicle body, and the base end of the parallel link 16 and the base end of the door load support arm 18. The cable ends poe and pce of the opening / closing drive mechanism 19 and the wire harnesses 49 and 51 are attached.
In addition to the door glass, in the space in the rear door 4, the door support rail 22, the slider 24 fitted to the door support rail 22, the door side member of the opening / closing drive mechanism 19, and the electrical equipment provided in the rear door 4 A controller 30 as control means is provided.
The parallel link 16 has a function of positioning the movement locus and each position of the rear door 4. The front and rear connecting pins 246 and 245 (see FIG. 3A) of the front arm 31 and the rear arm 32 of the parallel link 16 are respectively connected to the vicinity of the front and rear ends of the slider 24.

As shown in FIGS. 3 and 5, the rear door 4 is provided with a motor M and a take-up drum 46 and a plurality of intermediate rollers Po <b> 2 and Pc <b> 2 that constitute a drive source of the opening / closing drive mechanism 19. The door load support arm 18 mounted above the parallel link 16 includes a first support arm 44 that is pin-coupled to a base end boss portion 41 formed on the base member 15 side on the vehicle body side, and a pivot end (base end). ) And a door-side pivot portion 37 to which the swing end of the second support arm 61 is pin-coupled. With such a door load support arm 18, the load at the center of gravity of the rear door 4 is always transmitted to and supported by the base member 15.
As shown in FIGS. 3 and 5, the door support rail 22 of the rear door 4 has a main and sub rail groove formed long in the front-rear direction X, and a plurality of rollers ro <b> 1 and ro <b> 2 are provided inside the door support rail 22. The slider 24 is slidably fitted. As a result, the slider 24 swings by the parallel link 16 and the door support rail 22 can slide in the front-rear direction X with respect to the plurality of rollers ro1 and ro2 of the slider 24.

  Next, the opening / closing drive mechanism 19 provided in the rear door 4 includes a motor M disposed in the rear door 4, a winding drum 46 that is wound around the motor M and driven so as to be rewound, and a winding drum. An open cable 49 and a closed cable 51 (see FIG. 3C) that can be freely wound around 46, a front end pulley po1 of the door support rail 22 around which the open cable 49 is wound, and the closed cable 51 are wound. An open cable 49 supported by the base member 15 and the end pulley pc1 at the rear end of the door support rail 22; the first pulley 23f on the front side of the slider 24; the second pulley po2 (front intermediate pulley) on the front arm 31; A cable end poe to which the anchor portions are connected, a first pulley 23r on the rear side of the slider 24, a second pulley pc2 (rear intermediate pulley) on the rear arm 32, a base It is supported by the member 15 and a cable end pce and connected with an anchor portion of the closing cable 51.

As shown in FIGS. 1 and 2, the controller 30 provided in the rear door 4 performs open / close control and door lock control, and is connected to a main controller 70 on the vehicle body side. An input port (not shown) of the controller 30 includes an engine key switch 900, an input panel switch 901, pole switches sw1 and sw3 for detecting the half latch positions of the front upper, lower lock portions J1 and J2, and the rear lock portion J3. Each input signal is input from the full latch position sensors sw2 and sw4 for detecting the full latch position. Moreover, when a front overrun position B (motor reversing position) to be described later and a rear overrun position C (motor re-reversing position) to be described later are detected, a switching signal (see FIG. 11) is output. An operation member position detection switch sw5 is connected.
On the other hand, an output port (not shown) of the controller 30 includes a motor M1 that drives a fan-shaped swing operation member 82 (see FIG. 6) that is a swing operation member in each of the front and rear latch drive means 81, and a latch release drive. It is connected to a solenoid (not shown) that drives the release arm 801 of the means 80 (see FIG. 4).

  As a result, the controller 30 performs door opening / closing control, which will be described later, and faces the latches 661 and 671 of the front upper and lower lock portions J1 and J2 and the rear lock portion J3 when the door is moved to the closed position D1. For each of the strikers 662 and 672, the latch drive means 81 and the latch release drive means 80 are controlled so as to switch from the half latch state to the full latch state, that is, to perform latch pull-in. In particular, when the controller 30 receives a signal for turning on the swing operation member position detection switch sw5, before and after confirming that the latches 661 and 671 have reached the front and rear overrun positions B and C, respectively. A control function is provided as overrun detection means 301 and 302 (see FIG. 2).

Next, a door locking device for holding the rear door 4 in the closed position D1 will be described with reference to FIGS. 3 (a) to 7 (b).
As shown in FIG. 3A, in the closed position D1, the front door upper and lower lock portions J1 and J2 of the rear door 4 have a latch 661 and a center pillar 5 connecting the roof side rail 10 and the side sill 10c. The rear end lock portion J3 which forms the other side lock portion is removably locked using the striker 662, and is removably locked to the rear pillar 60 located on the rear side of the vehicle body of the rear entrance / exit 3 using the latch 671 and the striker 672. The

As shown in FIG. 4, in the rear door 4, the latches 661 and 671 of the front upper and lower lock portions J <b> 1 and J <b> 2 provided in the front portion interlocked via the operation cable 86 and the rear lock portion J <b> 3 provided in the rear portion. (See FIGS. 6 and 7) is provided with a latch driving means 81 for switching from the half-latch state to the full-latch state with respect to the strikers 662 and 672 facing each other, and the front upper and lower lock portions J1 and J2 and the rear lock portion J3 are provided. The latch release driving means 80 is connected. Both the drive means 81 and 80 are driven and controlled by the controller 30 described above.
As shown in FIGS. 4, 6, and 7, the latch driving means 81 supports a fan-shaped swing operation member 82 having a substantially fan shape in front view on the bracket B <b> 1, and the bracket B <b> 3 integrally coupled to the bracket B <b> 1 The front and upper lock portions J1 and J2 are connected to the front side of these via the operation cable 86 as shown in FIG.

  Here, the latch driving means 81 is pivotally supported by a bracket B1 that forms the base thereof, and is driven by a motor M1, and is supported by the bracket B1 through a pivot 813 so as to be swingable and a drive gear 811. A fan-shaped swing operation member 82 reciprocally swung in one direction and the other directions r1, r2, and a latch switching lever 84 coaxially supported by the pivot 813 so as to be relatively displaceable. A switching claw 83 pivotally supported on the side of the main body of the fan-shaped swing operation member 82 is provided. As shown in FIGS. 7B and 8, the switching claw 83 is switched to the g1 and g2 positions so that it is not interlocked with the latch switching lever 84 when the fan-shaped swing operation member 82 swings in one direction r1. The fan-shaped swing operation member 82 can be switched to be interlocked or not interlocked when swinging in the other direction r2.

A rack is formed in an arc shape on the swinging edge of the fan-shaped swinging operation member 82, and a convex portion e is formed on one end thereof. The protrusion e is provided with a swing operation member position detection switch sw5 supported by the bracket B1.
When the convex portion e of the fan-shaped swing operation member 82 is at the reference symbol Pb in FIG. 6A and the origin position A shown in FIGS. 10 and 11, the swing operation member position detection switch sw5 is held in the OFF state. When a predetermined front overrun position B (denoted by Ppf in FIG. 7A) is reached from the half latch position Ps of the front upper and lower lock portions J1 and J2 shown in FIG. 11 through the full latch position Pp, the swing operation member position The detection switch sw5 is switched on. Further, when the fan-shaped swing operation member 82 is reversed in accordance with the switching of sw5, the swing operation member position detection switch sw5 is held again in the OFF state switching OFF state, and the half of the rear lock portion J3 shown in FIG. When the actuator passes through the latch position Ps ′ and further passes through the full latch position Pp ′ and reaches a predetermined back overrun position C (denoted by Ppr in FIG. 7B), the swing operation member position detection switch sw5 is turned on again. Switch to state. Further, when the swing operation member position detection switch sw5 is switched, the fan-shaped swing operation member 82 is reversed again, so that the swing operation member position detection switch sw5 is switched off again. The detection switch sw5 is configured to be held in the off state.

Here, as shown in FIG. 11, the overrun position B at the time of forward rotation is set to a position that has passed through the half latch position Ps and a predetermined time dt further on the closing side than the full latch position Pp.
Here, in the normal door temporary fastening operation, the rear door 4 stops near the half latch position Ps. However, in the case of an abnormal situation where the manual operation or the door closing operation force of the opening / closing mechanism becomes excessively large, for example, when the road surface is inclined forward, it directly exceeds the full latch position Pp and moves excessively as shown in FIG. Then, the closed position Ps ′ may be reached to stop. In such a case, the pole switch sw1 is not switched again after switching, and the full latch switch sw2 remains on, and the motor reverse timing cannot be detected from these.

  Here, as shown in FIG. 11, a case is considered in which the latch 661 of the front lock portions J1 and J2 reaches the closed position Ps ′ that has moved excessively from the half latch position Ps to the overrun side through the full latch position Pp. Then, a predetermined front overrun position B (denoted by Ppf in FIG. 11) before reaching the overrun restraint position D where the latch pull-in function is mechanically restrained is set. This overrun position B is at a position shifted by a predetermined amount from the full latch position Pp. For this reason, when the front overrun detection means 301 receives a signal for turning on the swing operation member position detection switch sw5, it is reliably determined that the latches 661 of the front lock portions J1 and J2 have reached the full latch position Pp. it can.

As a result, in either case where the rear door 4 is in the vicinity of the half latch position Ps or has reached the closed position where the full latch position Pp has been moved excessively, the motor M1 is rotated forward once and then the motor M1 is operated at the overrun position B. Reversal is ensured, and even when the rear door 4 has reached the closed position where it has moved excessively, the pull-in function of the latch reliably reaches the overrun restraint position D where it mechanically enters a restrained state. I try to prevent it.
On the other hand, the rear lock portion J3 supported by the bracket B3 selectively engages the fork q1 that is swingably supported by the bracket B3 via the pivot shaft 872 and the two protruding ends of the fork q1, and attaches the fork q1. And a pole 882 that can be regulated to a half latch state or a full latch state. The fork q1 is provided with a full latch switch SW4 for detecting the full latch state, and a reciprocating swing is detected in a pole 882 that is urged to rotate clockwise around the pivot pin 883. A pole switch sw3 that is turned on / off is provided oppositely.

As shown in FIGS. 6A and 6B, the fan-shaped swing operation member 82 has a front upper lock portion J1 (which is also configured to interlock with the front lower lock portion J2) at a full latch position from the half latch position Ps. One end of a drive cable 86 (see FIG. 4), which is a swing amount branch transmission member for switching to Pp, is pin-coupled.
Here, the front upper lock portion J1 (the front lower lock portion J2 also has the same configuration) is a latch switching member that is a swing amount branching transmission member that is swingably supported by the bracket B2 that forms the base portion via the pivot 871. The lever 87, the fork q swingably supported by the bracket B2 via the pivot shaft 872 and pressed by the other end of the latch switching lever 87, and the bracket B2 rotated clockwise via the pivot shaft 873. A pole 881 that is supported by being urged by movement and that selectively engages with two protruding ends of the fork q to restrict the fork q to a half-latch state or a full-latch state is provided.

  Such a latch driving means 81 moves the sector-shaped swing operation member 82 forward in one direction r1 from the origin position A (see the solid line positions in FIGS. 6A and 6B, see FIGS. 9 and 10). After reaching the front overrun position B (refer to the symbol Ppf in FIG. 7A and FIGS. 9 and 10) which is one end position which is the reversal position, the reversal is performed, and the reverse movement is performed in the other direction r2 to return to the origin position A. And then reaches the rear overrun position C (see the solid line position Ppr in FIG. 7B and FIGS. 9 and 10), which is the rear re-inversion position, and re-inverts to the origin position A (in FIG. 6A). Return to the solid line position Pb (see FIGS. 9 and 10). Thus, until the next door opening command is input, the fork q of the front lock portion J1 and J2 and the fork q1 of the rear lock portion J3 are closed and stopped while being switched to the full latch position (solid line position in FIG. 7B). .

Next, as shown in FIG. 4, the latch release driving means 80 supported by the rear door 4 is an operation for returning the front upper and lower lock portions J1, J2 and the rear lock portion J3 to the unlatched position via the release arm 801 and the cable. Convey power.
Specifically, the latch release driving means 80 is operated around a fulcrum pin 803 in conjunction with a release arm 801 (see FIG. 4) that is swung by a solenoid (not shown) and a link 805 to the release arm 801. Branch operation member 802 to be connected to the other swinging end of the branch operation member 802 via the three coaxial cables 806, the respective poles 881 and rear lock portions J3 of the front upper and lower lock portions J1 and J2 (FIG. 6 ( a) and a release lever 85 interlocking with the pole 882 of FIG. 7B).

Thereby, when the latch release driving means 80 is driven and the front upper and lower lock portions J1, J2 and the rear lock portion J3 are released, the respective poles 881, 882 rotate around the pivot pins 873, 883. The forks q and q1 can return to the unlatched position (see FIG. 6A). Next, the operation of the rear door 4 will be described together with the door lock control routine of FIG.
This door lock control routine is executed at a predetermined control timing in a main routine (not shown) performed by the controller 30, that is, whenever the rear door 4 approaches the closing position D1.

Here, in step A1, the controller 30 determines whether it is connected to a power circuit (not shown), determines that the power is connected, and proceeds to step A2. In step A2, it is determined whether the rear door 4 is in the closed position (see FIG. 1) D1. If so, the process proceeds to step A3, and if the rear door 4 is open, the process proceeds to step A5.
In step A3, it is determined whether or not a door opening command has been received. If the door opening command is not received, it is assumed that the rear door 4 holds the closed position D1, and the process directly returns to the main routine (not shown). Otherwise, the process proceeds to step A4. .

  If No in step A3, when the rear door 4 holds the closed position D1, the latches 661 and 671 of the front upper lock portion J1, the front lower lock portion J2 and the rear end lock portion J3 on the rear door 4 side are locked. The state is kept in a non-energized state. That is, the rear door 4 is locked to the center pillar 5 using the latches 661 and 671 and the strikers 662 and 672 of the front upper lock portion J1 (the same applies to the front lower lock portion J2) and the rear lock portion J3. In this state, as shown in FIG. 3A, the swinging ends of the rear arm 32 and the front arm 31 are drawn into the vehicle interior, and the door support rail 22 moves the rear door 4 together with the slider 24 of the swinging ends of both arms. The closed position (see FIG. 1) D1 is held.

  When the door opening command is received and the process proceeds to step A4, the controller 30 issues a lock release command, and the branch operation member 802 (see FIG. 4) swings from the steady position to the release position. The poles 881 and 882 of the parts J1 and J2 and the rear lock part J3 are simultaneously released to release the latches 661 and 671 from the strikers 662 and 672. As shown in FIG. The lock parts J1, J2 and the rear lock part J3 are switched to the unlatched position. At this time, the latch switching levers 87 and 84 of the front upper and lower lock portions J1 and J2 and the rear lock portion J3 are at positions corresponding to the origin position Pb (see FIG. 6A), and the forks q and q1 There is no interference with the return operation.

As a result, the rear door 4 is opened from the closed position D1, and is allowed to swing toward the protruding position D2.
At this time, on the open / close control processing routine side of the main routine (not shown), the motor M of the driving source is driven, and the anchor portion of the opening operation cable 49 is connected as shown by a two-dot chain line in FIG. The winding drum 46 winds up the cable stretched between the cable end poe and the fixed pulley po1 on the door support rail 22. As a result, the front arm 31 and the rear arm 32 interlocked therewith are oscillated and displaced from the closed position D1 to the oscillating position D2 shown in FIG.

Next, the door support rail 22 side is illustrated relative to the slider 24 at the oscillating end of the parallel link 16 where the rear door 4 passes the oscillating position D2 and stops oscillating by the action of the opening / closing drive mechanism 19. The sliding operation is performed up to the fully open position D3 shown in 3 (c).
Next, assume that step A5 is reached from steps A2 and A4.
Here, the passenger gets on and off using the rear entrance 3 and waits for the controller 30 to receive a door closing command. At this time, the motor M (see FIG. 3) is driven to return to the swing position in FIG. 3 (b) from the state of FIG. 3 (c), and the rear door 4 moves toward the closed position D1 in FIG. 3 (a). .
In step A6, it is determined whether the rear door 4 is directed to the closed position D1, and the front upper and front lower lock portions J1, J2 have reached the half latch position.

  Here, when the front upper lock part J1, the front lower lock part J2 and the rear lock part J3 reach the half latch state, the pole switches sw1 and sw3 are switched on / off, and when this is detected and judged, FIG. Forward rotation can be started at the half latch position Ps, and the process proceeds to Step A7. In step A7, the motor M1 (see FIGS. 6 and 7) is rotated forward to drive the front upper lock portion J1 and the front lower lock portion J2 toward the full latch position Pp (see FIG. 11), and the process proceeds to step A8. In step A8, when the front full latch switch sw2 is turned on and the pole switch sw1 is turned on / off again, it is considered that the full latch position has been reached, and the forward rotation of the motor M1 is continuously allowed. Then, in step A9, the controller waits for the swing operation member position detection switch sw5 to be turned on.

It is determined that the swing operation member position detection switch sw5 is on and the front overrun detection means 301 of the controller 30 has reached the front overrun position B, and the process proceeds to step A10.
That is, here, even if the front full latch switch sw2 has already been turned on in step A8, the swing operation member position detection switch sw5 is moved to the closed side from the full latch position Pp for a predetermined time dt in step A9. Waiting for the overrun position B to be turned on before turning on, the motor is reversely rotated from the forward rotation, so that the rear door 4 is in the vicinity of the half latch position Ps, or even if it is moved excessively through the full latch position Pp. Even in the case where the motor M1 is reached, the motor M1 is normally rotated once and then the motor M1 is reliably reversed at the front overrun position B. Thus, even when the rear door 4 receives an excessive closing force and reaches the closing position Ps ′, the latch retracting function is in the overrun restraining position D (see FIG. 11) where the latching function is mechanically restrained. It can be surely prevented from moving.

In Step A10, here, the motor M1 is reversed toward the full latch position Pp ′ of the rear lock portion J3, that is, rotationally driven in the other direction r2 as shown in FIG. 7B and FIG. To do.
Next, in step A11, it is determined that the full latch switch sw4 of the rear lock portion J3 is turned on, the pole sw3 is turned on / off, and the rear lock portion J3 has reached the full latch without fail. It waits for the swing operation member position detection switch sw5 to be turned on after reaching '.

  In Step A12, it is determined that the swing operation member position detection switch sw5 is turned on, that is, the rear overrun detection means 302 of the controller 30 has reached the rear overrun position C, and the rear overrun position C ( After confirming that the symbol Ppr in FIG. 7B and the values shown in FIGS. 10 and 11 have been reached, the motor M1 is re-reversed (forward) from reverse, and the process proceeds to step A13.

In step A13, an elapsed time until the rear lock portion J3 returns to the origin position Pb, that is, an elapsed time ta after the swing operation member position detection switch sw5 is turned on is awaited.
After the elapsed time ta, when the rear lock part J3 returns to the origin position Pb, the motor M1 is stopped in step A14. At this time, the motor M1 and the latch switching lever 84 return to the origin position Pb indicated by the two-dot chain line from the full latch position Pp ′ indicated by the solid line in FIG. And the rear lock part J3 is hold | maintained at a full latch, and the state which locks the rear door 4 to the closed position D1 is hold | maintained. As described above, since the motor M1 is stopped after the predetermined time ta has elapsed after the motor M1 is driven again, the motor M1 that is interlocked with the swing operation member after the door is closed is surely brought to the origin position A that is an appropriate stop position. Can hold.

  As described above, the door locking device mounted on the vehicle in FIG. 1 can easily switch and correct the latches of the front upper and lower lock portions J1 and J2 and the rear lock portion J3 to the full latch position. In particular, since the motor M1 is reversed and re-reversed at the front overrun position B (see FIGS. 10 and 11) and the rear overrun position C, the latches 661 and 671 are in the overrun restraint position D (as shown in FIG. The latch mechanism portion can be reliably prevented from being deformed or damaged, or stuck to the motor.

  Further, in the door locking device of FIG. 1, the motor reverse signal and the motor re-reverse signal are sequentially output at the overrun positions B and C before proceeding to the overrun restraint position D where the retracting function of the latch is mechanically restrained. Therefore, the motor M1 can be reversely operated when the swing operation member position detection switch sw5 is turned on. For this reason, it is possible to prevent the latches 661 and 671 from entering into a mechanically restrained state, and troubles such as deformation and breakage of the latch mechanism portion, and motor fixing do not occur.

  Further, the latches 661 and 671 are applied to the strikers 662 and 672 in response to the respective switching operation forces from the latch switching levers 84 and 87 and the operation cable 86 which are swing amount branching transmission members interlocked with the sector-shaped swing operation member 82. Since the half latch state is switched to the full latch state, each swing amount branching transmission member can increase the degree of freedom of layout. In addition, the front and rear latches can be easily switched from the half latch state to the full latch state by transmitting the swing of the sector swing operation member 82 in a distributed manner to two or more swing displacement transmission members.

In the above description, the present invention is described as being applied to the left rear door 4. However, the present invention can be similarly applied to the right side, and the present invention can be similarly applied to the left and right doors of a two-door vehicle. An effect is obtained.
In the above embodiment, the front overrun position B and the rear overrun position C of the swing operation member 82 are confirmed by the switching signal to turn on the swing operation member position detection switch sw5. In order to confirm the rear overrun position C, front and rear position detection switches may be provided.

1 is a schematic side view of a vehicle in which a door locking device according to an embodiment of the present invention is employed. It is a control block diagram of the controller used with the locking device of the door of FIG. It is opening / closing operation | movement explanatory drawing of the locking device of the door of FIG. It is action | operation explanatory drawing of the locking device of the door of FIG. It is a principal schematic sectional drawing of the door provided with the locking device of the door of FIG. FIG. 2 is a schematic configuration explanatory view of the front upper and lower and rear lock portions of the door locking device of FIG. 1, (a) is in an unlatched state, and (b) is closed with an excessive closing force by an opening / closing mechanism or the like, The case where the full latch state and the rear lock part are in the half latch state is shown. FIG. 2 is a schematic configuration explanatory view of the front upper and lower and rear lock portions of the door locking device of FIG. 1, (a) is a front latching state in a full latch state, a rear lock portion is in a half latch state, and (b) is a front vertical lift and rear lock. Both parts are in a fully latched state. It is a lock operation explanatory perspective view of the rear lock part in the lock device of the door of FIG. It is rocking | fluctuation range explanatory drawing of the rocking | fluctuation operation member of the locking device of the door of FIG. The operation | movement chart of the latch of the front up-and-down and rear lock part used with the locking device of the door of FIG. FIG. 2 is a diagram illustrating the locking operation over time of the front upper and lower and rear locking portions used in the door locking device of FIG. It is a flowchart of the door lock control routine used with the door locking device of FIG. It is opening / closing operation | movement explanatory drawing of the conventional locking device of a door. It is a schematic block diagram of the front up-and-down and rear lock part of the door locking device of FIG. It is action | operation explanatory drawing of the latch drive means of the locking device of the door of FIG.

Explanation of symbols

3 Rear entrance 4 Rear door 30 Controller (control device)
301 Front overrun detection means 302 Rear overrun detection means 661, 671 Latch 662, 672 Striker 80 Latch release drive means 81 Latch drive means 82 Fan-shaped operation member (swing operation member)
83 Switching claw 84, 87 Latch switching lever (oscillating amount branch transmission member)
85 Release lever 86 Operation cable (oscillation operation member)
881, 882 Pole q, q1 Fork r1 One direction r2 Other direction A Origin position on the swing operation member side B Front overrun position C Rear overrun position Ca Automobile (vehicle body)
D Overrun restraint position D1 Closed position J1, J2 Front up / down lock part J3 Rear lock part M1 Motor Pp1 Overrun position Pb Origin position of rear lock part sw1, sw3 Pole switch sw2, sw4 Full latch switch sw5 Swing operation member position detection switch

Claims (6)

A door that opens and closes the door opening of the vehicle body,
A door locking portion for holding the door in a closed position by meshing a latch supported on either the door or the edge of the door opening with a striker fixed to the other;
Latch driving means for switching the latch from the half latch position to the full latch position by meshing the latch with the opposing striker via a swing operation member swinged by a motor;
A door locking device comprising: control means for driving and controlling the latch driving means;
The door locks are provided on the front and rear sides of the door opening,
Before over-detecting the position of the swing operation member when the motor is driven to rotate in one direction and the latch of the front lock part reaches the predetermined front overrun position from the half latch position through the full latch position. Run detection means;
When the motor is driven to rotate in the opposite direction opposite to one direction and the latch of the rear lock portion reaches the predetermined rear overrun position from the half latch position through the full latch position, A post-overrun detecting means for detecting the position,
The control means drives the motor to rotate in one direction when the latch of the front lock portion reaches the half latch state when the door is closed, and the front overrun detection means causes the latch of the front lock portion to move to the front overrun position. Is detected to reach the rear overrun position by the rear overrun detecting means, and the rear overrun detecting means detects that the latch of the rear lock portion has reached the rear overrun position. A door locking device characterized in that it is driven again. The door locking device according to claim 1,
The front overrun position and the rear overrun position are set so as to be between the full latch position of each latch and the overrun restraint position where the pull-in function is mechanically restrained, respectively. And door locking device. In the door locking device according to claim 1 or 2,
A swing operation member position detection switch for detecting the position of the swing operation member;
The front overrun detection means and the rear overrun detection means detect that each overrun position has been reached by detecting switching of an output signal of the swing operation member position detection switch. Door lock device. The door locking device according to any one of claims 1 to 3,
The door locking device, wherein after the rear overrun position is detected, the motor is stopped again after a predetermined time has elapsed after the motor is driven again. In the door locking device according to claim 3 or 4,
After detecting the rear overrun position, the motor is re-inverted and then the second switching of the swing operation member position detection switch is detected to stop the motor. The door locking device according to any one of claims 3 to 5,
The latch driving means switches each of the front and rear latches from a half latch state to a full latch state with respect to each striker by each switching operation force from a swing amount branch transmission member interlocked with the swing operation member. Door locking device.

Images