JP2008214935A - Vehicular door locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular door locking device which can cancel an indoor-side locking state of a vehicular door assuming a lock-setting state by operation on the outside, and can set the indoor-side locking state of the vehicular door even if the vehicular door is in a lock-canceling state. <P>SOLUTION: According to the structure of the vehicular door locking device, when the vehicular door assumes both the lock-setting state and the lock-canceling state, a first operating lever 41 can shift the vehicular door to the indoor-side locking state in which the vehicular door opening operation on inside is inhibited. A second operating lever 42 is linked via an active lever 23 and a key lever 22 to an outside key cylinder mechanism, and supported by the first operating lever 41 in a relatively rotatable manner or alternatively in a unitarily rotatable manner. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle door lock device.

  2. Description of the Related Art Conventionally, for example, a vehicle door lock device disclosed in Patent Document 1 is a vehicle door that is operated from the indoor side in addition to a normal lock mechanism that locks and unlocks the vehicle door by an operation from the indoor side or the outdoor side. There is provided a lock mechanism that creates a lock state (so-called double lock state) that prohibits the transition from the locked state to the unlocked state. In this vehicle door lock device, for example, in an emergency, the double lock state can be released together with the transition from the locked state to the unlocked state by operating the key cylinder mechanism from the outdoor side.

In addition, the vehicle door lock device of Patent Document 2 includes a normal lock mechanism that locks and unlocks the vehicle door, and a so-called child proof mechanism that prohibits the opening operation of the vehicle door by an operation from the indoor side. It is equipped with a motorized one, and the locking knob is concealed when the vehicle door is locked. Therefore, it can be substantially double-locked by setting the indoor side locked state (child proof state) in which the opening operation of the vehicle door by the operation from the indoor side is prohibited in the locked state of the vehicle door. In other words, even if the vehicle door is unlocked, it can be locked indoors.
JP 2000-160903 A (paragraph [0032]-[0039] paragraph) Japanese Examined Patent Publication No. 7-84828

  By the way, in the door lock device for vehicles of patent documents 1, since there is an emergency release mechanism by operation of a key cylinder mechanism, the indoor side locked state cannot be created in the unlocked state of the vehicle door. This is because the mechanical connection structure (engagement of the key lever and the double lock lever) for establishing the operation of the emergency release mechanism prevents the mechanical operation that makes the transition to the indoor locked state in the unlocked state. Because.

  On the other hand, in the vehicle door lock device of Patent Document 2, since the lock mechanism and the child proof mechanism are independent structures, the vehicle door is changed from the locked state to the unlocked state by operating the key cylinder mechanism in an emergency, for example. The indoor locked state, i.e., the double locked state, cannot be mechanically released even after the transition.

  An object of the present invention is to release the indoor locked state in the locked state of the vehicle door by an operation from the outdoor side, and to set the indoor side locked state even in the unlocked state of the vehicle door. An object of the present invention is to provide a vehicular door lock device.

  In order to solve the above problems, the invention according to claim 1 is a first lock mechanism linked to an indoor side operation member and an outdoor side operation member of a vehicle door, wherein the vehicle door is locked and unlocked. A second lock mechanism that is disposed between the indoor operation member and the first lock mechanism and creates an indoor lock state that prohibits the opening operation of the vehicle door by the operation of the indoor operation member; A vehicle having a release mechanism linked to an outer operation member and releasing the operation of the second lock mechanism by the operation of the outdoor operation member and operating the first lock mechanism to unlock the vehicle door. In the door lock device, the second lock mechanism includes a first operation lever that shifts the vehicle door to the indoor lock state in both the locked state and the unlocked state of the vehicle door, 1 can rotate relative to the actuating lever and is integrally rotatably supported to constitute a second actuating lever which is linked to the release mechanism, and summarized in that.

  According to this configuration, when the vehicle door is shifted to the indoor-side locked state by the first operating lever in the locked state of the vehicle door, the second operating lever linked to the release mechanism is By supporting the first operating lever so as to rotate integrally with the operation of the release mechanism by the operation of the outdoor operation member, the operation of the second lock mechanism is released and the vehicle door is unlocked. Thus, the first lock mechanism can be actuated.

  On the other hand, in the unlocked state of the vehicle door, the second operating lever linked to the releasing mechanism is supported so as to rotate relative to the first operating lever, so that the first operating lever is not obstructed by the releasing mechanism. The vehicle door can be shifted to the indoor lock state by one operating lever. Accordingly, it is possible to set a state in which only the opening operation of the vehicle door by the operation of the indoor side operation member is prohibited, that is, a child proof state.

  According to a second aspect of the present invention, in the vehicle door lock device according to the first aspect of the present invention, the second operation lever is operated by the first operation lever as the release mechanism is operated by the operation of the outdoor operation member. The release of the operation of the second lock mechanism is started in a state in which the support of the second operating lever by the first operating lever is switched to be able to rotate integrally by the switching mechanism that switches the support so that the support can rotate integrally. The gist of the invention is to have a control mechanism.

  According to this configuration, the switching mechanism switches the support of the second operating lever by the first operating lever so as to be integrally rotatable, and in that state, the control mechanism starts releasing the operation of the second locking mechanism. By doing so, it is possible to more reliably release the operation of the second lock mechanism accompanying the operation of the release mechanism.

  According to a third aspect of the present invention, in the vehicle door lock device according to the second aspect, the switching mechanism includes an engagement pin provided on one of the first and second operating levers, and the first And an engagement recess that is provided on the other of the second operation levers and into which the engagement pin is inserted, and the engagement pin is operated in accordance with the operation of the release mechanism by the operation of the outdoor operation member. Is engaged with the engaging portion of the engaging recess, and the support of the second operating lever by the first operating lever can be integrally rotated.

According to this configuration, the switching mechanism can have a very simple configuration including the engagement pin and the engagement recess.
According to a fourth aspect of the present invention, in the vehicle door lock device according to the second or third aspect, the control mechanism is provided in the second operating lever, and the switching mechanism is configured to perform the first operation by the first operating lever. The gist of the present invention is an inclined surface that is guided by the release mechanism so that the operation of the second lock mechanism is released when the support of the two operation levers is switched so as to be integrally rotatable.

According to this configuration, the control mechanism can be made extremely simple as an inclined surface provided on the second operating lever.
According to a fifth aspect of the present invention, in the vehicle door lock device according to any one of the second to fourth aspects, the operation of the second lock mechanism is released, and the first operation lever performs the operation. The gist of the invention is to have a return mechanism for returning the support of the second actuating lever to be relatively rotatable.

  According to this configuration, in the state where the operation of the second lock mechanism is released, the support of the second operation lever by the first operation lever is returned to be relatively rotatable by the return mechanism, so that the release is performed. The vehicle door can be more reliably shifted to the indoor side locked state by the first operating lever without being obstructed by the mechanism.

  According to the first to fifth aspects of the present invention, the indoor side locked state in the locked state of the vehicle door can be released by an operation from the outdoor side, and the indoor side locked state is maintained even in the unlocked state of the vehicle door. A vehicle door lock device that can be brought into a state can be provided.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, a door lock device 10 that engages with a striker 2 provided in a vehicle body (not shown) and holds the vehicle door 1 in a closed state is provided at the rear edge in the vehicle door 1. It is arranged along. The vehicle door 1 is provided with an inside handle 3 as an indoor operation member in a manner exposed to the indoor side, and an outside handle 4 is provided in a manner exposed to the outdoor side. A key cylinder mechanism 5 as an outdoor operation member is installed in a manner embedded in the side handle 4.

  As shown in FIG. 2, the latch mechanism 11 provided in the door lock device 10 includes a latch 12 and a pole 13, and holds the vehicle door 1 in a closed state by engaging with the striker 2. . That is, when the vehicle door 1 is closed, the latch 12 rotates and engages the striker 2, and at the same time, the pawl 13 prevents the latch 12 from rotating, thereby holding the vehicle door 1 in the closed state. When the pawl 13 is moved to release the latch 12 from being rotated, the latch 12 is urged by a return spring (not shown) to rotate back and release the engaged state with the striker 2 to release the vehicle door 1. Open.

  Next, the door lock device 10 will be described in more detail with reference to FIGS. 3 and 4, in order to explain the basic operation of the door lock device 10, a part of the configuration according to the present invention is omitted for convenience. 3 shows a state where the vehicle door 1 is in an unlocked state (hereinafter referred to as “unlocked state”) and allows the opening operation of the vehicle door 1 by the operation of the inside handle 3 (hereinafter referred to as “unlocked state”). "Set state"). FIG. 4 shows a state in which the vehicle door 1 is in a locked state (hereinafter referred to as “locked state”) and the opening operation of the vehicle door 1 by operating the inside handle 3 is prohibited (hereinafter referred to as “set state”). State).

  As shown in the figure, the door lock device 10 includes a box-shaped housing 21, a key lever 22, an active lever 23, a panic lever 24, a locking actuator 25, an open link 26, and an inside lever 27. And an inside open lever 28, a one-motion lever 29, a double lock lever 30, and a double lock actuator 31.

  The key lever 22 is supported so as to be rotatable clockwise and counterclockwise in the figure with respect to the housing 21. For example, the key cylinder 22 is rotated by a key cylinder mechanism 5 (see FIG. 1) by a key blade (not shown). The mechanism 5 is connected so as to rotate integrally. Note that an engagement groove 22 a is formed at the tip of the key lever 22 so as to be recessed on the rotation center side.

  The active lever 23 is supported so as to be rotatable with respect to the housing 21 in the illustrated clockwise and counterclockwise directions. The active lever 23 includes a first lever portion 23a extending from the rotation center to the key lever 22 side, a second lever portion 23b extending to the output shaft 25a side of the locking actuator 25, and a second lever portion 23b also extending to the double lock lever 30 side. 3 lever portions 23c.

  An engagement protrusion 23d that is engaged with the engagement groove 22a is formed at the tip of the first lever portion 23a. Therefore, for example, when the key lever 22 is rotated, the engaging protrusion 23d is pressed against the opposing inner wall surface of the engaging groove 22a, and the active lever 23 is rotated clockwise and counterclockwise in the figure. Needless to say, the rotation directions of the key lever 22 and the active lever 23 are reversed.

The third lever portion 23c is formed with a pressing piece 23e protruding toward the double lock lever 30 side.
The panic lever 24 is supported so as to substantially rotate integrally with the active lever 23, and has a lever portion 24a extending from the rotation center to the open link 26 side. An engagement piece 24b bent in a direction perpendicular to the paper surface is formed at the tip of the lever portion 24a.

  Here, the rotation range of the active lever 23 relative to the housing 21 is restricted to a predetermined range, and the rotation position shown in FIG. 3 where the rotation of the active lever 23 in the counterclockwise direction shown in FIG. This is referred to as the first operating position of the lever 23. The rotation position shown in FIG. 4 where the clockwise rotation of the active lever 23 is restricted is referred to as a second operation position of the active lever 23. The housing 21 is equipped with a positioning spring 32 that selectively switches the rotation position of the active lever 23 between the first and second operating positions. Needless to say, the rotation of the active lever 23 between the first and second operating positions via the key lever 22 is possible by operating the key cylinder mechanism 5.

  The locking actuator 25 is composed of, for example, an electromagnetic solenoid, and is controlled by detecting a remote operation (locking / unlocking operation) of a lock / unlock switch provided on a key blade or a door interior trim by a control circuit (not shown). It is what is done. The output shaft 25a of the locking actuator 25 is connected to the second lever portion 23b. The locking actuator 25 rotates the active lever 23 from the first operating position to the second operating position by projecting the output shaft 25a as it is driven, and retracts the output shaft 25a to the second operating position. The active lever 23 is rotated from the first operation position to the first operation position.

  In the state where the driving of the locking actuator 25 is stopped, the output shaft 25a is allowed to appear and retract. Therefore, in this state, for example, the rotation of the key cylinder mechanism 5 by the key blade and the rotation of the active lever 23 via the key lever 22 are not restricted by the connection with the output shaft 25a.

  At one end of the open link 26, a long hole-like engagement groove 26a into which the engagement piece 24b of the panic lever 24 is inserted is formed. The open link 26 is supported so as to be movable within a predetermined range in the longitudinal direction of the engagement groove 26 a with respect to the panic lever 24.

  The other end of the open link 26 is formed with a connecting portion 26 b that is connected to an open lever 33 provided in the housing 21, and the open link 26 is supported to be swingable with respect to the open lever 33. ing. The open lever 33 is rotatably attached to the housing 21 by a support pin 34 and is stably disposed at a predetermined rotational position by a torsion spring (not shown). The open lever 33 is connected to the connecting portion 26b of the open link 26 at one end 33a, and is connected to the outside handle 4 at the other end opposite to the rotation center. The open lever 33 rotates so as to move the end portion 33a, that is, the connecting portion 26b of the open link 26, against the torsion spring by the operation of the outside handle 4 in the opening direction.

  Further, the open link 26 is formed with an L-shaped engagement piece portion 26c at an intermediate portion between the engagement groove 26a and the connecting portion 26b. The engagement piece 26c is disposed in the vicinity of a lift lever 35 that is rotatably attached to the housing 21. The lift lever 35 is connected so as to rotate integrally with the pole 13 (see FIG. 2). When the lift lever 35 is rotated so that the tip 35a of the lift lever 35 on the engagement piece 26c side is moved upward, as the pole 13 is integrally rotated, the lift mechanism 35 is connected to the striker 2 by the latch mechanism 11. The engaged state is released and the vehicle door 1 is opened. The open link 26 has an engagement hole 26d.

  Here, the arrangement relationship between the engaging piece 26c and the tip 35a corresponding to the first and second operating positions of the active lever 23 will be described. When the active lever 23 is in the first operating position (see FIG. 3), one end of the open link 26 is guided to one side (right side in FIG. 3) by the engagement piece 24b of the panic lever 24. At this time, the engaging piece portion 26c and the tip portion 35a are opposed to each other in the vertical direction, and the engaging groove 26a is also arranged so that the longitudinal direction thereof coincides with the vertical direction. Therefore, if the open link 26 is moved upward in this state, the distal end portion 35a is moved upward by being pressed by the engagement piece portion 26c, and the engagement state with the striker 2 by the latch mechanism 11 is released. Therefore, the first operating position of the active lever 23 corresponds to a position for setting the unlocked state.

  On the other hand, when the active lever 23 is in the second operating position (see FIG. 4), one end of the open link 26 is guided to the other side (left side in FIG. 4) by the engagement piece 24b of the panic lever 24. Yes. At this time, the engaging piece portion 26c is arranged so that the extension line along the longitudinal direction of the engaging groove 26a is disengaged from the distal end portion 35a. Therefore, even if the open link 26 is moved up along the longitudinal direction of the engaging groove 26a in this state, the tip 35a is not pressed by the engaging piece 26c, and the striker 2 by the latch mechanism 11 is not pressed. The engaged state is maintained. Therefore, the second operating position of the active lever 23 corresponds to a position for setting the locked state.

  The inside lever 27 is supported by the housing 21 so as to be rotatable in the clockwise direction and the counterclockwise direction in the figure in a manner arranged at a predetermined initial rotation position. The inside lever 27 is connected to the inside handle 3 and rotates in the counterclockwise direction in the drawing by operating the inside handle 3 in the opening direction. The inside lever 27 is formed with an L-shaped engagement groove 36. The engagement groove 36 includes a first engagement portion 36a extending radially outward from a proximal end portion on the rotation shaft side, and a proximal end on the rotation shaft side in communication with the first engagement portion 36a. And a second engaging portion 36b extending to one side in the circumferential direction.

  The inside open lever 28 is supported coaxially with the inside lever 27 so as to be rotatable in the clockwise and counterclockwise directions in the figure with respect to the housing 21. The inside open lever 28 is equipped with a double lock bush 37 that selectively switches so as to be rotatable integrally with the inside lever 27 and relatively rotatable. In other words, the inside open lever 28 is formed with a guide piece 28a extending in a rectangular shape radially outward, and the double lock bush 37 slides along the longitudinal direction (radial direction) of the guide piece 28a. It is supported freely. The double lock bush 37 is formed with engaging protrusions 37a and 37b that protrude to the front side and the back side orthogonal to the paper surface. One of the engaging protrusions 37a is formed in the engaging groove 36. Has been inserted.

  Therefore, as shown in FIG. 3, when the engaging protrusion 37 a is disposed and locked on the first engaging portion 36 a, the relative rotation of the inside lever 27 and the inside open lever 28 is restricted, and these inside lever 27 And the inside open lever 28 can rotate integrally. Further, as shown in FIG. 4, when the engaging protrusion 37a is disposed on the second engaging portion 36b, the engaging protruding portion 37a is released in the circumferential range of the second engaging portion 36b, The inside lever 27 and the inside open lever 28 can be relatively rotated.

  The inside open lever 28 is formed with a pressing piece 28b that extends in a claw shape and is arranged to face the engaging piece 26c in the vertical direction. The pressing piece 28b is formed so that the engaging piece portion 26c is disposed on the turning locus. Therefore, when the inside open lever 28 and the inside open lever 28 are rotated together with the inside lever 27 in the counterclockwise direction in the figure while the inside lever 27 and the inside open lever 28 are integrally rotatable, the end surfaces of the engaging piece 26c facing each other by the pressing piece 28b. Is pushed to move the open link 26 upward. The engagement state of the striker 2 with the upward movement of the open link 26 is released depending on whether or not the engagement piece portion 26c and the engagement piece 35a of the lift lever 35 are opposed to each other in the vertical direction. As described above, this is switched.

  Further, the inside open lever 28 is formed with a lever portion 28c extending in the radial direction opposite to the pressing piece 28b, and the tip end portion of the lever portion 28c is bent in a direction perpendicular to the paper surface. A stop piece 28d is formed.

  The one-motion lever 29 is supported so as to be rotatable with respect to the housing 21 in the illustrated clockwise and counterclockwise directions. The one-motion lever 29 is formed with a lever portion 29a extending from the rotation center to the engagement hole 26d side of the open link 26, and the tip end portion of the lever portion 29a is bent in a direction perpendicular to the paper surface. A locking piece 29b that is locked in the engaging hole 26d is formed.

  Further, the one motion lever 29 is formed with a protruding piece 29c extending so as to cross the turning locus of the locking piece 28d of the inside open lever 28. Accordingly, when the inside open lever 28 is rotated in the counterclockwise direction in the figure, the one motion lever 29 is integrally rotated in the counterclockwise direction in the figure by pressing the opposing surface of the protruding piece 29c against the locking piece 28d. .

  Here, as shown in FIG. 4, it is assumed that the engagement piece portion 26 c of the open link 26 and the engagement piece 35 a of the lift lever 35 are not opposed to each other in the vertical direction (locked state). . At this time, when the inside open lever 28 is rotated in the counterclockwise direction in the figure, first, the opposing surface of the protruding piece 29c is pressed against the locking piece 28d, so that the one-motion lever 29 is integrally rotated in the counterclockwise direction in the figure. Move. Accordingly, the one motion lever 29 presses the inner wall surface of the engagement hole 26d with the locking piece 29b, thereby swinging the open link 26 in the clockwise direction in the drawing.

  At this time, the positioning lever 32 assists the active lever 23 together with the panic lever 24 from the second operating position to the first operating position, and the open link 26 supported by the panic lever 24 is engaged with the engagement piece. The portion 26c is disposed so as to face the engaging piece 35a in the up-down direction. Subsequently, when the inside open lever 28 further rotates counterclockwise in the drawing, the pressing piece 28b presses the opposing end surface of the engaging piece 26c, so that the open link 26 moves up. As a result, the front end 35a of the lift lever 35 is moved upward by being pressed by the engagement piece 26c, and the engagement state with the striker 2 by the latch mechanism 11 is released.

  That is, even in the locked state, if the inside lever 27 and the inside open lever 28 can rotate integrally, the inside lever 27 and the inside open lever 28 are moved in one motion by operating the inside handle 3 in the opening direction. By rotating the lever 29 together with the lever 29 in the illustrated counterclockwise direction, the vehicle door 1 can be opened as well as being shifted from the locked state to the unlocked state. In the present embodiment, since it is possible to shift from the locked state to the unlocked state by the operation of the inside handle 3 in the above-described manner, the indoor-side lock knob related to the function that is conventionally seen is omitted.

Note that a series of structures that are locked and unlocked by operating the inside handle 3 and the key cylinder mechanism 5 constitute a first lock mechanism.
The double lock lever 30 is supported so as to be rotatable with respect to the housing 21 in the illustrated clockwise and counterclockwise directions. The rotation of the double lock lever 30 relative to the housing 21 is restricted to a predetermined range, and the double lock lever 30 is located at the turning position shown in FIG. 3 where the rotation of the double lock lever 30 in the clockwise direction in the figure is restricted. This is called the unset position. Also, the rotation position shown in FIG. 4 where the rotation of the double lock lever 30 in the counterclockwise direction shown in the figure is restricted is referred to as the set position of the double lock lever 30. The housing 21 is provided with a moderation spring 38 that selectively switches the rotation position of the double lock lever 30 between the unset position and the set position.

  The double lock lever 30 includes a first lever portion 30a extending from the rotation center to the inside lever 27 side, a second lever portion 30b extending to the active lever 23 (pressing piece 23e) side, and an output of the double lock actuator 31. And a third lever portion 30c extending toward the shaft 31a.

  An arcuate guide groove 30d is formed along the longitudinal direction of the first lever portion 30a, and the other engagement protrusion 37b of the double lock bush 37 is inserted. As shown in FIG. 3, when the rotation position of the double lock lever 30 is in the unset position, the guide groove 30d is formed with the engagement protrusion 37b (double double) about the rotation axis of the inside open lever 28. The movement of the lock bush 37) in the radial direction is restricted, and the movement of the lock bush 37 in the circumferential direction around the rotating shaft integral with the inside open lever 28 is allowed. One engagement protrusion 37 a of the double lock bush 37 is disposed in the first engagement portion 36 a of the engagement groove 36. At this time, as described above, the inside lever 27 and the inside open lever 28 can rotate together. Therefore, in this state, the operation in the opening direction of the inside handle 3 allows the transition from the locked state to the unlocked state in the above-described manner and allows the opening operation of the vehicle door 1.

  As shown in FIG. 4, when the rotation position of the double lock lever 30 is at the set position, the guide groove 30d similarly restricts the radial movement of the engagement protrusion 37b (double lock bush 37). . One engagement protrusion 37 a of the double lock bush 37 is disposed in the second engagement portion 36 b of the engagement groove 36. At this time, as described above, the inside lever 27 and the inside open lever 28 can be relatively rotated. Therefore, in this state, even if the inside lever 27 is rotated counterclockwise in the drawing by operating the inside handle 3 in the opening direction, the inside lever 27 and the inside open lever are within the range of the second engaging portion 36b. The relative rotation of the inner lever 27 is allowed, and the inside lever 27 rotates idly while the inside open lever 28 and the one-motion lever 29 remain. That is, when the turning position of the double lock lever 30 is in the set position, even if the inside handle 3 is operated in the opening direction, the inside lever 27 only turns and the transition from the locked state to the unlocked state is made. Of course, the opening operation of the vehicle door 1 is also prohibited.

  When the rotation position of the double lock lever 30 is at the set position, if the active lever 23 is rotated from the second operation position to the first operation position by driving the locking actuator 25, the lock state is unlocked. Transition to the locked state. At the same time, the double lock lever 30 is rotated in the clockwise direction in the figure when the second lever portion 30b is pressed against the pressing piece 23e of the active lever 23. At this time, the double lock lever 30 is urged by the moderation spring 38 and rotates from the set position to the unset position. Accordingly, the state shown in FIG. 3 is restored, and the opening operation of the vehicle door 1 is allowed regardless of the opening direction of the inside handle 3 and the outside handle 4.

  Further, when the rotation position of the double lock lever 30 is in the set position, the active lever 23 is moved from the second operation position to the first operation position via the key lever 22 by the rotation operation of the key cylinder mechanism 5 by the key blade. Even if it is turned, it will return to the state shown in FIG. 3 in the same manner, and the opening operation of the vehicle door 1 is performed regardless of the operation of the inside handle 3 or the outside handle 4 in the opening direction. Is acceptable. This is because even if the drive is not possible due to a malfunction of the locking actuator 25 or the like, it is possible to forcibly shift to the unlocked state by the operation of the key blade.

  The double lock actuator 31 is composed of, for example, an electromagnetic solenoid, and is driven and controlled by detecting a remote operation (set / unset operation) of a double lock switch provided on a key blade or a door interior trim by a control circuit (not shown). Is. The output shaft 31a of the double lock actuator 31 is connected to the third lever portion 30c. The double-lock actuator 31 is pulled from the set position by pulling the output shaft 31a as it is driven to rotate the double lock lever 30 from the unset position to the set position, and by projecting the output shaft 31a. The double lock lever 30 is rotated to the position.

  Note that, in the state where the drive of the double lock actuator 31 is stopped, the output shaft 31a can be moved freely. Therefore, in this state, the rotation of the double lock lever 30 is not restricted by the connection with the output shaft 31a. For example, the rotation of the active lever 23 by the operation of the key blade is not restricted.

  Next, the configuration of the door lock device 10 according to the present invention will be described in more detail with reference to FIGS. 5-7, the shape is schematically shown for convenience. Components having substantially the same functions as those shown in FIGS. 3 and 4 are denoted by the same reference numerals. Yes. FIG. 5 shows a state in the locked state and in the set state, as in FIG.

  As shown in FIG. 5, the second lever portion 30 b of the double lock lever 30 includes a first operating lever 41 integrated with the first lever portion 30 a and the like and a first operating lever 41 supported by the first operating lever 41. 2 actuating levers 42.

  The first actuating lever 41 has an engaging recess 43 that penetrates in the direction perpendicular to the paper surface at the tip. The engaging recess 43 is formed in a groove shape on the outer side in the radial direction (longitudinal direction of the first actuating lever 41) centering on the rotation shaft of the double lock lever 30 from the circular shaft support hole 43a. It has a locking part 43b cut out and is formed into a keyhole shape.

  The second operating lever 42 has a distal end portion 42a bent toward the active lever 23 and has an L shape, and a base end portion 42b facing the first operating lever 41 has a direction orthogonal to the paper surface. A rectangular engagement pin 44 is formed so as to protrude from the engagement recess 43 and be inserted into the engagement recess 43. The longitudinal direction of the engagement pin 44 is bent at both ends so as to have an outer diameter equivalent to the inner diameter of the shaft support hole 43a, and the width in the short direction is larger than the width of the locking portion 43b. Is also set slightly smaller. The engaging recess 43 and the engaging pin 44 constitute a switching mechanism.

  The other end of a return spring 45 as a return mechanism in which one end is locked to the first operating lever 41 is locked to the second operating lever 42. 44 is urged so as to come into contact with the inner wall surface of the shaft support hole 43a on the rotation shaft side of the double lock lever 30. The return spring 45 is disposed above the center of the shaft support hole 43a and along the longitudinal direction of the first operation lever 41. Therefore, the second operation lever 42 is counterclockwise as shown in the figure by the return spring 45. It is also urged on the rotating side.

  The first operating lever 41 is formed with a restricting piece 46 in the vicinity of the base end portion 42b, and the second operating lever 42 is centered on the engaging pin 44 (shaft support hole 43a). A projecting piece 47 is formed to face the regulating piece 46 on the turning locus. Therefore, the second operating lever 42 is urged by the return spring 45 so that the engaging pin 44 comes into contact with the corresponding inner wall surface of the shaft support hole 43 a and the projecting piece 47 becomes the regulating piece 46. It is held at a predetermined position (hereinafter referred to as “initial position”) that is prevented from rotating by contact. As shown in FIG. 5, when the second operating lever 42 is in the initial position, the second operating lever 42 can rotate relative to the first operating lever 41 around the engaging pin 44 (the shaft support hole 43a). It is supported.

  When the second operating lever 42 is in the initial position, the longitudinal direction of the base end portion 42b is set so as to coincide with the longitudinal direction of the first operating lever 41. Is set so as to coincide with the notch direction of the locking portion 43b. At this time, the pressing piece 23e of the active lever 23 is disposed inside a corner portion formed by the second operating lever 42 (the distal end portion 42a and the proximal end portion 42b), and the distal end portion 42a includes the pressing piece 23e. An inclined surface 48 as a control mechanism is formed so as to be gradually reduced toward the tip on the 23e side.

  Here, when the active lever 23 is rotated counterclockwise to rotate from the second operation position to the first operation position via the key lever 22 by the rotation operation of the key cylinder mechanism 5 by the key blade, As indicated by a two-dot chain line in FIG. 5, the pressing piece 23 e comes into contact with the distal end portion 42 a on the proximal end side of the inclined surface 48 and starts to press the second operating lever 42. Thus, the second operating lever 42 is guided by the first operating lever 41 and starts to move in the direction of arrow A (right direction in the figure).

  When the active lever 23 is further rotated counterclockwise in the drawing, the second operating lever 42 is pressed by the pressing piece 23e and further in the direction of arrow A as further indicated by a broken line in FIG. The engaging pin 44 is engaged with and engaged with the engaging portion 43b. At this time, the second operating lever 42 is supported by the first operating lever 41 so as to be integrally rotatable. The pressing piece 23e contacts the inclined surface 48 and presses the second operating lever 42.

  Therefore, when the active lever 23 is further rotated counterclockwise in the drawing, the first operating lever 41 (that is, the double operating lever 42) integrated with the second operating lever 42 is guided in the manner of being guided by the inclined surface 48 in contact with the pressing piece 23e. The lock lever 30) rotates clockwise in the figure. Then, as indicated by a solid line in FIG. 6, when the double lock lever 30 is rotated to a predetermined angle as the active lever 23 is rotated to the first operating position, the double lock lever 30 is moved to the moderation spring. It is assisted by 38 and rotates to the unset position. At the same time, the second operating lever 42 released from the pressing piece 23e is urged by the return spring 45 to move in the arrow B direction and return to the initial position. This state, like FIG. 3, is in the unlocked state and corresponds to the unset state. At this time, as described above, the opening operation of the vehicle door 1 is allowed regardless of the opening direction of the inside handle 3 and the outside handle 4. A series of structures for releasing the set state and releasing the locked state by operating the key cylinder mechanism 5 constitutes a release mechanism.

  On the other hand, as shown by a broken line in FIG. 7, in order to rotate the double lock lever 30 from the unset position to the set position in the unlocked state and in the unset state, When the actuator 31 is driven and rotated counterclockwise in the figure, the distal end portion 42a of the second operating lever 42 is located on the distal end side of the inclined surface 48, as indicated by a two-dot chain line in FIG. It abuts against 23e and begins to be pressed by the pressing piece 23e. At this time, since the second actuating lever 42 is held at the initial position, the double lock lever 30 is engaged with the engagement as shown by a solid line in FIG. The second actuating lever 42 is pivoted to the set position while allowing the second actuating lever 42 to pivot about the pin 44 (the shaft support hole 43a) in the clockwise direction in the figure.

  At this time, even if the inside handle 3 is operated in the opening direction in spite of the unlocked state, the inside lever 27 only rotates in the above-described manner, and the opening operation of the vehicle door 1 is prohibited. ing. That is, in the present embodiment, the double lock lever 30 (first operation lever 41) can be disposed at the set position regardless of the unlocked state or the locked state, and the vehicle door 1 can be opened by operating the inside handle 3. A state where the operation is prohibited (hereinafter referred to as “indoor lock state”) can be set. A series of structures that create the indoor lock state by driving the double lock actuator 31 constitutes a second lock mechanism.

  In this embodiment, a state in which the indoor side locked state is set in the unlocked state, that is, the opening operation of the vehicle door 1 by the operation of the outside handle 4 is permitted, and the opening of the vehicle door 1 by the operation of the inside handle 3 is permitted. It is possible to set a state in which the operation is prohibited, that is, a so-called child proof state.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) In this embodiment, when the vehicle door 1 is shifted to the indoor side locked state by the first operating lever 41 in the locked state (locked state of the vehicle door 1), the key cylinder is connected via the active lever 23 or the like. By supporting the second operating lever 42 linked to the mechanism 5 so as to rotate integrally with the first operating lever 41, the indoor side locked state is released and the unlocked state (vehicle) according to the operation of the key cylinder mechanism 5. The door 1 can be unlocked).

  On the other hand, in the unlocked state, the active lever 23 (pressing piece) is supported by supporting the second operating lever 42 linked to the key cylinder mechanism 5 via the active lever 23 or the like so as to rotate relative to the first operating lever 41. 23e), the vehicle door 1 can be shifted to the indoor side locked state by the first operating lever 41. Thereby, the state where only the opening operation of the vehicle door 1 by the operation of the inside handle 3 is prohibited, that is, the child proof state can be set.

  In addition, since the indoor locked state in the locked state can be released by the operation of the key cylinder mechanism 5 from the outdoor side and the child proof state can be set in this way, the door of the present embodiment The locking device 10 can be shared by the vehicle door 1 on the front side and the rear side.

  (2) In the present embodiment, the support of the second operating lever 42 by the first operating lever 41 is switched by the engaging recess 43 and the engaging pin 44 so as to be integrally rotatable. In this state, the double lock lever is driven by the inclined surface 48. Since the release of the indoor side locked state by 30 is started, the release can be performed more reliably.

(3) In this embodiment, the switching mechanism can have a very simple configuration including the engaging recess 43 and the engaging pin 44.
(4) In the present embodiment, the control mechanism can have a very simple configuration as the inclined surface 48 provided on the second operating lever 42.

  (5) In the present embodiment, in the state in which the indoor lock state is released, the support of the second operating lever 42 by the first operating lever 41 is returned by the return spring 45 so as to be relatively rotatable, so that the active lever 23 The vehicle door 1 can be more reliably shifted to the indoor side locked state by the first operating lever 41 without being blocked by the (pressing piece 23e).

In addition, you may change the said embodiment as follows.
In the above embodiment, the engagement recess 43 may be provided in the second operation lever 42 and the engagement pin 44 may be provided in the first operation lever 41 to constitute a similar switching mechanism.

  In the embodiment, the lock actuator 25 and the double lock actuator 31 may be electric motors that are driven to rotate. In this case, an appropriate mechanism for converting the rotational motion into the linear motion may be provided, and the active lever 23 and the double lock lever 30 connected thereto may be rotated.

  In the embodiment described above, the locked state is shifted to the unlocked state by operating the inside handle 3 from the indoor side. However, the locked state may be shifted to the unlocked state by operating a conventional lock knob, for example.

The front view which shows the vehicle door to which this invention is applied. The elevation view which shows the latch mechanism of the door lock device. The side view which shows a door lock apparatus and its operation | movement. The side view which shows a door lock apparatus and its operation | movement. The schematic diagram which shows the door lock apparatus of one Embodiment of this invention, and its operation | movement. The schematic diagram which shows the door lock apparatus of the same embodiment, and its operation | movement. The schematic diagram which shows the door lock apparatus of the same embodiment, and its operation | movement.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle door, 2 ... Striker, 3 ... Inside handle (indoor operation member), 4 ... Outside handle, 5 ... Key cylinder mechanism (outdoor operation member), 22 ... Key lever, 23 ... Active lever, 24 ... Panic Lever, 25 ... Actuator for lock, 26 ... Open link, 27 ... Inside lever, 28 ... Inside open lever, 30 ... Double lock lever, 31 ... Actuator for double lock, 36 ... Engagement groove, 37 ... Double lock bush, 41 ... 1st operation lever, 42 ... 2nd operation lever, 43 ... Engagement recessed part, 43a ... Shaft support hole, 43b ... Locking part, 44 ... Engagement pin, 45 ... Return spring (return mechanism), 48 ... Inclined surface .

Claims (5)

A first lock mechanism linked to an indoor operation member and an outdoor operation member of the vehicle door to place the vehicle door in a locked state and an unlocked state, and disposed between the indoor operation member and the first lock mechanism. A second lock mechanism for creating an indoor lock state that prohibits the opening operation of the vehicle door by the operation of the indoor operation member, and the second lock mechanism linked to the outdoor operation member. In a vehicle door lock device having a release mechanism that releases the mechanism and activates the first lock mechanism to bring the vehicle door into an unlocked state.
The second locking mechanism includes a first operating lever that shifts the vehicle door to the indoor-side locked state in both the locked state and the unlocked state of the vehicle door; A second actuating lever supported so as to be integrally rotatable and linked to the release mechanism;
A vehicle door lock device. The vehicle door lock device according to claim 1,
A switching mechanism that switches the support of the second operating lever by the first operating lever so as to rotate together with the operation of the release mechanism by the operation of the outdoor operation member;
A control mechanism for starting the release of the operation of the second lock mechanism in a state where the support of the second operation lever by the first operation lever is switched by the switching mechanism so as to be integrally rotatable.
A vehicle door lock device. The vehicle door lock device according to claim 2,
The switching mechanism is
An engagement pin provided on one of the first and second actuating levers;
An engagement recess provided in either one of the first and second actuating levers and into which the engagement pin is inserted,
As the release mechanism is operated by the operation of the outdoor operation member, the engagement pin is locked to the locking portion of the engagement recess, and the support of the second operating lever by the first operating lever is integrated. Become rotatable,
A vehicle door lock device. In the vehicle door lock device according to claim 2 or 3,
The control mechanism is provided in the second operation lever, and is pressed by the release mechanism in a state where the support of the second operation lever by the first operation lever is switched so as to be integrally rotatable by the switching mechanism. An inclined surface that guides the second lock mechanism to be released,
A vehicle door lock device. In the vehicle door lock device according to any one of claims 2 to 4,
A return mechanism for returning the support of the second operating lever by the first operating lever to be relatively rotatable in a state where the operation of the second locking mechanism is released;
A vehicle door lock device.

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