JP2013019215A - Vehicular door lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular door lock device using a closer device for hardly receiving the influences of an environmental temperature and the door built on the vehicle body when detecting that foreign matters are held between the door and the vehicle body to accurately avoid the foreign matters from being held therebetween.SOLUTION: The vehicular door lock device comprises a mechanical driving force detecting device 30 which is mounted via a driving lever 23 of a closer device 20 for detecting driving force transmitted from an electric motor 24 of the closer device 20 to a latch, the mechanical driving force detecting device 30 detecting that the foreign matters held between the door and the vehicle body. The vehicular door lock device, therefore, hardly receives the influences of the environmental temperature and the door built on the vehicle body when detecting that the foreign matters are held therebetween, to enable highly accurate detection that the foreign matters are held therebetween and accurately avoid the foreign matters from being held therebetween.

Description

  The present invention relates to a vehicle door lock device, and in particular, includes a latch that engages with a striker, and a latch mechanism that includes a pawl that can hold the latch in a half-latch state and a full-latch state, and a half-latch state. The present invention relates to a vehicle door lock device including a drive lever that can move a latch to a full latch state and a closer device that includes an electric motor that can drive the drive lever by forward rotation or reverse rotation.

  This type of vehicle door lock device is disclosed, for example, in Patent Document 1 below. In the vehicle door lock device disclosed in Patent Document 1 below, when the vehicle door is in a half-door state and the latch of the latch mechanism is in a half-latch state, the electric motor rotates the drive lever in the forward direction. The latch in the latch state moves to the full latch state. When the latch moves to the fully latched state and the vehicle door is fully closed, the electric motor stops and the drive lever stops. Further, after the door of the vehicle has shifted to the fully closed state, the electric motor reversely rotates the drive lever, so that the drive lever moves toward the initial position. When the drive lever moves to the initial position, the electric motor stops and the closer device is in the initial state.

  Incidentally, the fact that the latch of the latch mechanism is in the half latch state, the latch has moved to the full latch state, the drive lever has moved to the initial position, etc., for example, as shown in Patent Document 2 below, It is comprised so that it may be detected by each sensor, and it is comprised so that a motor control apparatus (controller) may control the action | operation of an electric motor based on the detection signal of each sensor.

  Further, in Patent Document 3 below, a position sensor (anti-pinch sensor) detects that the latch in the half latch state has rotated to a predetermined position toward the full latch state, and in this state, between the door and the vehicle body. A configuration is shown in which the electric motor is reversely rotated when a foreign object is sandwiched and the current value supplied to the electric motor reaches a predetermined value.

JP 2007-138532 A JP 2010-84321 A JP-A-9-287336

(Problems to be solved by the invention)
In the above-mentioned Patent Document 3, a configuration is adopted in which the electric motor is reversed when the current value supplied to the electric motor becomes a predetermined value in the detection state of the position sensor (pinch prevention sensor). By the way, the value of the current supplied to the electric motor is greatly affected by variations in motor torque due to ambient temperature and variations in the construction of the door body, so the door is not drawn into the fully closed state without foreign objects being caught. There is a possibility that the door will be pulled into the fully closed state even if foreign matter is caught.

(Means for solving the problem)
The present invention has been made to solve the above problems,
A latch mechanism that includes a latch that engages with the striker, and a pole that can hold the latch in a half latch state and a full latch state;
A closer device including a drive lever capable of moving a latch in a half latch state to a full latch state, and an electric motor capable of driving the drive lever by forward rotation or reverse rotation;
A mechanical driving force detection device that detects a driving force that is interposed in the driving lever and transmitted from the electric motor to the latch;
In the initial stage when the electric motor rotates the drive lever forward to move the latch from the half-latch state to the full-latch state, when the drive force detected by the drive force detection device exceeds a set value, A vehicle door lock device (invention according to claim 1) having control means for stopping or reversely rotating the motor is characterized.

  In this case, the drive lever is assembled with a passive lever capable of moving the latch in the half latch state to the full latch state, and coaxially and relatively rotatable with respect to the passive lever, and coupled to the electric motor. And a motor lever provided between the motor lever and the passive lever and elastically deformed by a predetermined amount when the driving force reaches a set value, thereby rotating the motor lever by a predetermined amount relative to the passive lever. The drive force detection device includes a switch that operates when the spring is elastically deformed by a predetermined amount from an initial state and the motor lever is rotated by a predetermined amount relative to the passive lever. (Invention according to Item 2) is also possible, and the latch in the half latch state is moved to the full latch state. A latch lever that can be connected to the latch lever via a drive cable, and the electric motor mounted coaxially and relatively rotatably with respect to the passive lever. A motor lever connected to the passive lever, and is elastically deformed by a predetermined amount when the driving force reaches a set value provided between the motor lever and the passive lever. A driving spring, and the driving force detecting device includes a switch that operates when the spring is elastically deformed by a predetermined amount from an initial state and the motor lever is rotated by a predetermined amount relative to the passive lever. (Invention according to claim 3) is also possible.

  The switch includes a first terminal that rotates integrally with the passive lever, and a second terminal that rotates integrally with the motor lever and can be contacted or non-contacted with the first terminal. A rotary switch that operates when the motor lever rotates relative to the predetermined amount (the invention according to claim 4), or the switch is connected to the passive lever so as to be integrally rotatable. A cam follower coupled to the motor lever so as to be integrally rotatable and movable in the direction of the rotation axis, a return spring for biasing the cam follower in the direction of the rotation axis toward the return position, and movement of the cam follower in the direction of the rotation axis A limit switch that operates in accordance with the passive lever, and the motor lever is positioned relative to the passive lever. The amount relative rotated that cam switch which operates when (the invention according to claim 5) is also possible.

(Effects of the invention)
According to the vehicle door lock device of the present invention described above, the mechanical drive force detection device is interposed in the drive lever of the closer device, and the latch moves from the half latch state to the full latch state by the forward rotation of the electric motor. In the initial stage, when the foreign matter is caught between the door and the vehicle body and the driving force detected by the driving force detection device exceeds a set value, the electric motor is configured to stop or reversely rotate by the control device. ing. For this reason, if foreign matter is caught between the door and the vehicle body, the electric motor can prevent the door from being pulled into the fully closed state.

  By the way, in the present invention, a foreign material is sandwiched between the door and the vehicle body by the mechanical driving force detection device that detects the driving force that is interposed in the driving lever of the closer device and is transmitted from the electric motor to the latch. Configured to detect. For this reason, it is difficult for the detection of foreign object pinching to be affected by the ambient temperature or the door body mounting, and it is possible to perform pinching detection with high accuracy, and it is possible to accurately avoid the foreign object pinching.

  In the embodiment of the present invention, the drive lever is a passive lever that can move the latch in the half latch state to the full latch state (or the latch lever that can move the latch in the half latch state to the full latch state). A passive lever coupled to the passive lever via a drive cable), a motor lever that is coaxially and relatively rotatably assembled to the passive lever and coupled to the electric motor, and between the motor lever and the passive lever. Provided with a spring that elastically deforms by a predetermined amount when the driving force reaches a set value and relatively rotates the motor lever by a predetermined amount with respect to the passive lever. The motor lever rotates relative to the passive lever by a predetermined amount due to elastic deformation by a predetermined amount. If you have a switch that operates can, for example, by changing the load characteristics of the spring starts elastic deformation, it is possible to also correspond to the door with denominated the worst conditions.

1 is a side view of a vehicle front portion including an embodiment of a vehicle door lock device according to the present invention. FIG. 2 is an enlarged rear view of the vehicle door lock device shown in FIG. 1. FIG. 3 is a side view of the vehicle door lock device (including a controller that controls the operation of an electric motor) shown in FIG. 2. It is the figure which showed the relationship of a latch, a pole, a latch lever, etc. when the latch of the door lock device for vehicles shown in Drawing 2 and Drawing 3 is in a half latch state, and a latch lever is in an initial state. FIG. 5 is a diagram showing a relationship among a latch, a pole, a latch lever, and the like when the latch shown in FIG. 4 is moved from a half latch state to a full latch state by a latch lever. FIG. 4 is an enlarged side view of an actuator portion in the closer device shown in FIGS. 2 and 3. FIG. 7 is a partially exploded perspective view of an actuator portion in the closer device shown in FIG. 6. It is a figure of the passive lever single-piece | unit shown to FIG. 6 and FIG. 7, (a) is a side view, (b) is sectional drawing along the AA of (a). FIG. 8 is an enlarged view schematically showing an OFF state of the rotary switch shown in FIGS. 6 and 7. FIG. 10 is a diagram schematically showing an ON state of the rotary switch shown in FIG. 9. FIG. 10 is an operation explanatory diagram showing the relationship between the ON / OFF operation of each switch and the stroke of the striker (half latch state, full latch state) in the vehicle door lock device shown in FIGS. FIG. 8 is a partially exploded perspective view of an actuator portion in a closer apparatus according to an embodiment in which a cam type switch is used instead of the rotary switch shown in FIGS. 6 and 7. FIG. 13 is an enlarged sectional view showing an OFF state of the cam type switch shown in FIG. 12. It is sectional drawing which showed the ON state of the cam type switch shown in FIG.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 11 show an embodiment of a vehicle door lock device according to the present invention. The vehicle door lock device 100 is a latch mechanism 10 (FIG. 1 to FIG. 1) assembled to a right front door 201 of the vehicle. 5), a closer device 20 (see FIGS. 1 to 3 and 5 to 8), a driving force detection device 30 (see FIGS. 6 and 7), and a controller 40 (see FIG. 3) assembled to the vehicle body 202. It has.

  As shown in FIGS. 1 to 5, the latch mechanism 10 can be engaged / disengaged with respect to the striker 203 fixed to the vehicle body 202, and can be engaged / disengaged with respect to the latch 11. The pole 12 that can maintain (hold) and release the engagement of the latch 11 with the striker 203 in the half-latch state (the state shown in FIG. 4) and the full-latch state (the state shown in FIG. 5), and a lift integrated with the pole 12 A lever (not shown) is provided. In the half latch state (see HALF in FIG. 11), the door 201 of the vehicle is in the half door state, and the latch switch SW1 that detects the rotational position of the latch 11 is maintained in the ON state, and the full latch state (FULL in FIG. 11). Reference) is set so that the door 201 of the vehicle is fully closed and the latch switch SW1 is maintained in the OFF state.

  Note that the latch switch SW1 is configured to be turned ON / OFF in conjunction with the operation of the latch 11, similarly to the latch switch described in JP2010-84321A (Patent Document 2). It is set to switch from the OFF state to the ON state before entering the half latch state, and to switch from the ON state to the OFF state before entering the full latch state (see FIG. 11). The detection signal (ON / OFF signal) of the latch switch SW1 is configured (electrically connected) to be input to the controller 40 through the wire harness 41 shown in FIG.

  As shown in FIGS. 4 and 5, the latch 11 has a first engagement portion (half latch claw) 11a and a second engagement portion (full latch claw) 11b, and the base plate 13 shown in FIG. The support shaft 14 is assembled so as to be rotatable. The latch 11 is biased toward an initial state (a state in which the striker 203 can be fitted in the latch groove 11c of the latch 11) by a return spring (not shown), and is held by a stopper (not shown) in the initial state. Has been.

  On the other hand, the pole 12 is assembled to the base plate 13 or the like so as to be rotatable at the shaft portion 12a, and can be engaged with and detached from the first engaging portion 11a or the second engaging portion 11b of the latch 11. 12b. Further, the pole 12 is urged by a return spring (not shown) toward the return state shown in FIGS. 4 and 5 (the state in which the latch 11 is held in the half latch state or the full latch state). Is held by a stopper (not shown).

  The fact that the pole 12 is in the return state is configured to be detected by the OFF state (OFF signal) of the pole switch SW2, as shown in FIG. For this reason, the half latch state (see HALF in FIG. 11) is detected by switching the ON state (ON signal) of the latch switch SW1 and the ON state (ON signal) of the pole switch SW2 to the OFF state (OFF signal). Is possible. Further, the full latch state (see FULL in FIG. 11) can be detected by switching the latch switch SW1 from the OFF state (OFF signal) and the pole switch SW2 from the ON state (ON signal) to the OFF state (OFF signal). It is.

  The pole switch SW2 is turned on when the pole 12 is rotated and turned off when the pole 12 is returned to the initial state, similarly to the pole switch described in Japanese Patent Application Laid-Open No. 2010-84321 (Patent Document 2). It is configured as follows. Further, the detection signal (ON / OFF signal) of the pole switch SW2 is also configured (electrically connected) so as to be input to the controller 40 through the wire harness 41.

  A lift lever (not shown) integrated with the pole 12 is linked to an inside door handle 204 (see FIG. 1) provided inside the door 201 via an open link, an open lever or the like (not shown), and an open link, It is linked to an outside door handle 205 (see FIG. 1) provided outside the door 201 via an open lever or the like (not shown). The open link (not shown) is configured to be switched to an unlocked state or a locked state. In the unlocked state, the door opening operation of the inside door handle 204 and the outside door handle 205 is lifted integrally with the pole 12. It can be transmitted to a lever (not shown), and in the locked state, the door opening operation of the inside door handle 204 and the outside door handle 205 cannot be transmitted to a lift lever (not shown) integrated with the pole 12.

  As shown in FIGS. 1 to 8, the closer device 20 is connected to a latch lever 21 capable of moving the latch 11 in a half latch state to a full latch state, and the latch lever 21 via a drive cable 22. The drive lever 23 and an electric motor 24 capable of driving the drive lever 23 by forward rotation or reverse rotation are provided. The latch lever 21 is driven from the return position shown in FIG. 4, for example, to the operating position shown in FIG. 5 by the forward rotation of the electric motor 24, and from the operating position shown in FIG. 5, for example, by the reverse rotation of the electric motor 24. It is configured to be driven toward the return position shown in FIG.

  When the latch lever 21 returns to the return position, the latch lever 21 contacts the cushion 25 and engages with the return switch SW3, so that the return switch SW3 changes from the ON state (ON signal) to the OFF state (OFF signal). Thus, the return of the latch lever 21 is detected by the switching. The detection signal (ON / OFF signal) of the return switch SW3 is also configured (electrically connected) to be input to the controller 40 through the wire harness 41.

  As shown in FIGS. 6 to 8, the drive lever 23 includes a passive lever 23a coupled to the latch lever 21 via a drive cable 22, a planetary gear mechanism and a worm mechanism (these mechanisms are not shown). However, the rotation is connected to the output shaft of the electric motor 24 via the planetary gear mechanism and the worm mechanism described in JP 2007-138532 A (Patent Document 1). A motor lever 23b is provided integrally with the shaft 26 (see FIG. 7), and a spring 23c is provided between the motor lever 23b and the passive lever 23a. A cancel mechanism (part 1) between the ring gear of the planetary gear mechanism and the above-described open lever (not shown) that invalidates the operation of the closer device 20 by the door opening operation of the inside door handle 204 and the outside door handle 205. The cancel lever 27, which is a constituent member, is shown in FIG. 6, but the description thereof is omitted because it has substantially the same configuration as the cancel mechanism described in Japanese Patent Application Laid-Open No. 2007-138532 (Patent Document 1). ) Is provided.

  As shown in FIG. 8, the passive lever 23a has a circular mounting hole 23a1, a fan-shaped receiving recess 23a2, a pin insertion hole 23a3, an arc-shaped cable guide groove 23a4, and the like. 26 and is rotatably attached to the rotary shaft 26 together with the motor lever 23b by a clip 28. The motor lever 23b has a spline mounting hole 23b1, an arc-shaped long groove 23b2, and the like. The motor lever 23b is housed in the fan-shaped housing recess 23a2 of the passive lever 23a. It is assembled so as to be able to rotate integrally with 26a.

  The spring 23c is elastically deformed by a predetermined amount when the driving force transmitted from the drive lever 23 to the latch lever 21 via the drive cable 22 reaches a set value, and the motor lever 23b is moved relative to the passive lever 23a by a predetermined amount. A compression coil spring to be rotated, which is accommodated in a circular groove 23b2 provided with a motor lever 23b with a predetermined preliminary load, engaged with one end wall of the long groove 23b2 at one end, and at the other end Are engaged with the passive lever 23a via the pin 23d (through the pin insertion hole 23a3 and the long groove 23b2 and caulked to the passive lever 23a at both ends). The spring 23c is not shown in FIG.

  As shown in FIG. 6, the driving force detection device 30 is interposed in the drive lever 23 of the closer device 20, and is transmitted from the electric motor 24 to the latch lever 21 via the drive lever 23 and the drive cable 22. The driving force (load) is detected. As shown in FIGS. 6 and 7, in the driving force detection device 30, the spring 23c provided between the motor lever 23b and the passive lever 23a is elastically deformed by a predetermined amount from the initial state (the state shown in FIG. 6). A rotary switch 31 is provided that operates when the motor lever 23b rotates relative to a predetermined amount by 23a.

  The rotary switch 31 is operated when the motor lever 23b rotates relative to the passive lever 23a of the drive lever 23 by a predetermined amount. As schematically shown in FIGS. An outer rotor 31b and an inner rotor 31c are provided, and first terminals 31d and 31d and a second terminal 31e are provided. The housing 31a is formed of an insulating material, and accommodates the outer rotor 31b and the inner rotor 31c in a rotatable manner, and a wire harness 31f (lead wire) is assembled.

  The outer rotor 31b is formed of an insulating material, is configured to be assembled to the passive lever 23a, and rotates integrally with the passive lever 23a. The inner rotor 31c is made of an insulating material, is configured to be assembled to the rotating shaft 26, and rotates integrally with the rotating shaft 26. The first terminals 31d and 31d are formed of an electrically conductive material and are assembled to the outer rotor 31b. The first terminals 31d and 31d rotate integrally with the outer rotor 31b (passive lever 23a), and each lead wire of the wire harness 31f Always in contact. The second terminal 31e is formed of an electrically conductive material, is assembled to the inner rotor 31c, rotates integrally with the inner rotor 31c (the rotating shaft 26 that rotates integrally with the motor lever 23b), and the first terminal 31e. Contact / non-contact with the terminals 31d and 31d is possible.

  In this rotary switch 31, when the spring 23c of the drive lever 23 is in the initial state, the first terminals 31d and 31d and the second terminal 31e are in the positional relationship shown in FIG. 9, and the rotary switch 31 is turned off. When the spring 23c is elastically deformed by a predetermined amount from the initial state, the first terminals 31d and 31d and the second terminal 31e are in the positional relationship shown in FIG. 10 so that the rotary switch 31 is turned on. Yes. The output signal (ON / OFF signal) of the rotary switch 31 is also configured (electrically connected) so as to be input to the controller 40 through the wire harness 41.

  As described above, the controller (motor control device) 40 is electrically connected to the switches SW1, SW2, SW3, 31 via the wire harness 41, and also connected to the electric motor 24 with the wire harness 41 and the power supply line 42 ( (See FIGS. 3 and 6). The controller 40 controls forward / reverse / stop of the electric motor 24 based on signals (ON / OFF signals) from the switches SW1, SW2, SW3, 31 and the like described above. When the door 201 is changed from the open state to the half door state, the electric motor 24 is rotated forward to move the latch 11 from the half latch state toward the full latch state, and the first control means After the start of execution, it is detected by the driving force detection device 30 within a set time (equivalent to Sa in FIG. 11 in terms of the stroke S of the striker 203) (at the initial stage when the latch 11 moves from the half latch state to the full latch state). When the rotary driving force is greater than the set value and the rotary switch 31 is turned ON, the electric motor 24 is reversely rotated to move the latch lever 21 to the initial state. A second control means that includes a third control means for moving the latch lever 21 are reversed to the electric motor 24 after the latch 11 by execution of the first control means has moved to the fully-latched state to the initial state.

  When the rotary switch 31 is not turned ON within the set time after the execution of the first control means, the second control means is not executed even if the rotary switch 31 is turned ON after the set time. 1 The execution of the control means is completed, and the latch 11 moves to the full latch state. The execution of the first control means is started on the basis of switching from the ON signal of the latch switch SW1 and the ON signal of the pole switch SW2 to the OFF signal, and OFF from the OFF signal of the latch switch SW1 and the ON signal of the pole switch SW2. Complete based on switching to signal. The execution of the third control means is started based on the completion of the execution of the first control means (switching from the OFF signal of the latch switch SW1 and the ON signal of the pole switch SW2 to the OFF signal), and the ON signal of the return switch SW3. Is completed based on switching from the OFF signal to the OFF signal. The execution of the second control means is completed based on switching of the return switch SW3 from the ON signal to the OFF signal.

  Therefore, in this embodiment, at the initial stage when the latch 11 moves from the half-latch state to the full-latch state due to the forward rotation of the electric motor 24, foreign matter is sandwiched between the door 201 and the vehicle body 202, and the driving force detection device 30 When the detected driving force becomes equal to or greater than the set value, the electric motor 24 is rotated reversely by the controller 40. For this reason, if foreign matter is caught between the door 201 and the vehicle body 202, the electric motor 24 can prevent the door 201 from being pulled into the fully closed state.

  By the way, in this embodiment, the door 201 and the vehicle body 202 are provided by the mechanical driving force detection device 30 that is interposed in the driving lever 23 of the closer device 20 and detects the driving force transmitted from the electric motor 24 to the latch lever 21. It is configured to detect that a foreign object has been sandwiched therebetween. For this reason, it is difficult for the detection of foreign object pinching to be affected by the ambient temperature or the installation of the door 201 to the vehicle body 202, and it is possible to detect pinching with high accuracy, and to avoid (prevent) the pinching of foreign objects accurately. Is possible.

  Further, in the driving force detecting device 30 of this embodiment, the spring 23c provided between the motor lever 23b and the passive lever 23a of the driving lever 23 is elastically deformed by a predetermined amount from the initial state, and the motor lever 23b is moved relative to the passive lever 23a. A rotary switch 31 is provided that operates when a relative amount of rotation has occurred. Therefore, for example, by changing the load characteristic (preload) at which the spring 23c starts elastic deformation, it is possible to cope with the worst-case door installation.

  In the above-described embodiment, the drive lever 23 includes the spring 23c (compression coil spring) that is compressed and deformed between the passive lever 23a and the motor lever 23b. However, instead of the above-described spring 23c, It is also possible to employ a spring that is tensilely deformed between the motor levers (a tension coil spring to which a preload is applied). In carrying out the present invention, the preload applied to the above-described compression coil spring or tension coil spring can be configured to be adjustable.

  Moreover, in the said embodiment, although implemented as a structure in which the driving force detection apparatus 30 was provided with the rotary switch 31, as shown in FIGS. 12-14, the driving force detection apparatus 30 replaced with the rotary switch 31, and it is a cam type. It is also possible to implement as a configuration including the switch 32. The cam type switch 32 shown in FIGS. 12 to 14 operates when the motor lever 23b rotates relative to the passive lever 23a of the drive lever 23 by a predetermined amount, and includes a cam 32a, a cam follower 32b, and a return spring 32c. And a washer 32d (spring retainer) and a limit switch 32e (see FIGS. 13 and 14).

  The cam 32a has a plurality (three) of inclined portions 32a1 (see FIG. 12). After the drive lever 23 is assembled to the rotary shaft 26, the cam 32a is assembled to the passive lever 23a. By fitting three projections into the three mounting holes of the lever 23a, the levers 23a are connected so as to be integrally rotatable. The cam follower 32b has sliding projections 32b1 (see FIGS. 13 and 14) that are slidably engaged with the inclined portions 32a1 of the cam 32a, and after the cam 32a is assembled, or When the cam 32a is assembled, the cam 32a is assembled to the rotary shaft 26 together with the return spring 32c, the washer 32d, and the like, and is fitted to the two-surface width portion 26b provided at the upper end portion of the rotary shaft 26 so as to transmit torque. The motor lever 23b is connected to the motor lever 23b via the rotating shaft 26 so as to be integrally rotatable and movable in the rotating shaft direction.

  The return spring 32c is interposed between the cam follower 32b and the washer 32d, and biases the cam follower 32b toward the return position in FIG. 13 (toward the cam 32a) in the direction of the rotation axis. The washer 32d is fixed to the tip of the rotating shaft 26 by caulking. The limit switch 32e is assembled to the housing of the closer device 20 via the bracket 33, and is configured to operate in accordance with the movement of the cam follower 32b in the rotation axis direction.

  In this cam type switch 32, when the spring 23c of the drive lever 23 is in the initial state, the cam follower 32b is in the position shown in FIG. 13, the cam type switch 32 is turned off, and the spring 23c is moved from the initial state. When the predetermined amount of elastic deformation occurs, the cam follower 32b moves to the position shown in FIG. 14 (specifically, when the cam follower 32b rotates relative to the cam 32a, each sliding protrusion 32b1 of the cam follower 32b The cam type switch 32 is set so that the cam switch 32 is turned ON by sliding the respective inclined portions 32a1 of the cam 32a and moving upward in the inclination, and moving the cam follower 32b away from the cam 32a). . The output signal (ON / OFF signal) of the cam type switch 32 is also configured (electrically connected) to be input to the controller 40 through the wire harness 41.

  For this reason, even when the driving force detection device 30 is configured to include the cam type switch 32 (the embodiment illustrated in FIGS. 12 to 14), the driving force detection device 30 is configured to include the rotary switch 31. It is possible to obtain the same effect as the case (the embodiment shown in FIGS. 1 to 11).

  Further, in the above-described embodiment, the driving is performed in the initial stage when the latch 11 moves from the half latch state to the full latch state (when the stroke S from the half latch state of the striker 203 (the state of FIG. 4) is within the set value Sa). When the driving force detected by the force detection device 30 exceeds the set value (when the switch 31 or 32 is turned ON), the electric motor 24 is rotated in the reverse direction to move the latch lever 21 to the initial state. However, instead of reversing the electric motor 24 and moving the latch lever 21 to the initial state, for example, the electric motor (24) is stopped for a predetermined time, and then the electric motor (24) is rotated forward. It is also possible to carry out by setting the latch (11) to move toward the fully latched state.

  In each of the above embodiments, the vehicle door lock device includes the latch lever 21 that can move the latch 11 in the half latch state to the full latch state, and the passive lever 23a is provided on the latch lever 21. Although configured to be connected via the drive cable 22, there is no member corresponding to the drive cable 22 described above, and a member corresponding to the latch lever 21 is provided integrally with the passive lever (23a). The present invention can be carried out in the same manner as the above embodiments.

DESCRIPTION OF SYMBOLS 10 ... Latch mechanism, 11 ... Latch, 11a ... 1st engaging part, 11b ... 2nd engaging part, 11c ... Latch groove, 12 ... Pole, 12a ... Shaft part, 12b ... Locking part, 20 ... Closer device, DESCRIPTION OF SYMBOLS 21 ... Latch lever, 22 ... Drive cable, 22a ... Outer tube, 22b ... Inner wire, 23 ... Drive lever, 23a ... Passive lever, 23b ... Motor lever, 23c ... Spring, 23d ... Pin, 24 ... Electric motor, 25 ... Cushion, 26 ... Rotating shaft, 27 ... Cancel lever, 30 ... Mechanical driving force detection device, 31 ... Rotary switch, 31a ... Housing, 31b ... Outer rotor, 31c ... Inner rotor, 31d / 31d ... First terminal, 31e ... First 2 terminals, 32 ... cam type switch, 32a ... cam, 32b ... cam follower, 32c ... returns Ring, 32d ... Washer (spring retainer), 32e ... Limit switch, 40 ... Controller (control means), 41 ... Wire harness, 42 ... Feed line, 100 ... Vehicle door lock device, 201 ... Door, 202 ... Vehicle body, 203 ... striker, 204 ... inside door handle, 205 ... outside door handle, SW1 ... latch switch, SW2 ... pole switch, SW3 ... return switch

Claims (5)

A latch mechanism that includes a latch that engages with the striker, and a pole that can hold the latch in a half latch state and a full latch state;
A closer device including a drive lever capable of moving a latch in a half latch state to a full latch state, and an electric motor capable of driving the drive lever by forward rotation or reverse rotation;
A mechanical driving force detection device that detects a driving force that is interposed in the driving lever and transmitted from the electric motor to the latch;
In the initial stage when the electric motor rotates the drive lever forward to move the latch from the half-latch state to the full-latch state, when the drive force detected by the drive force detection device exceeds a set value, A vehicle door lock device comprising control means for stopping or reversely rotating a motor. The vehicle door lock device according to claim 1,
The drive lever includes a passive lever capable of moving a half-latch state latch to a full latch state, and a motor lever that is assembled coaxially and relative to the passive lever and coupled to the electric motor. And a spring that is provided between the motor lever and the passive lever and elastically deforms by a predetermined amount when the driving force reaches a set value and relatively rotates the motor lever by a predetermined amount with respect to the passive lever,
The driving force detecting device includes a switch that operates when the spring is elastically deformed by a predetermined amount from an initial state and the motor lever is rotated by a predetermined amount relative to the passive lever. The vehicle door lock device according to claim 1,
With a latch lever that can move the latch in the half latch state to the full latch state,
The drive lever includes a passive lever coupled to the latch lever via a drive cable, a motor lever that is coaxially and relatively rotatable with respect to the passive lever, and is coupled to the electric motor. A spring provided between a motor lever and the passive lever and elastically deforming by a predetermined amount when the driving force reaches a set value and rotating the motor lever by a predetermined amount relative to the passive lever;
The driving force detecting device includes a switch that operates when the spring is elastically deformed by a predetermined amount from an initial state and the motor lever is rotated by a predetermined amount relative to the passive lever. In the vehicle door lock device according to claim 2 or 3,
The switch includes a first terminal that rotates integrally with the passive lever, and a second terminal that rotates integrally with the motor lever and can be contacted or non-contacted with the first terminal. A vehicle door lock device that is a rotary switch that operates when the motor lever rotates relative to a predetermined amount. In the vehicle door lock device according to claim 2 or 3,
The switch includes a cam coupled to the passive lever so as to be integrally rotatable, a cam follower coupled to the motor lever so as to be integrally rotatable and movable in a rotation axis direction, and rotating the cam follower toward a return position. A return spring that biases in the axial direction, a limit switch that operates in accordance with the movement of the cam follower in the rotational axis direction, and a cam that operates when the motor lever rotates relative to the passive lever by a predetermined amount A vehicle door lock device, which is a type switch.

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