JP2012087552A - Door lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce displacement in a door upon lateral collision.SOLUTION: A door lock device 10 includes a latch mechanism capable of engaging/disengaging a striker 2, a lock mechanism capable of switching between an unlock state that allows cancellation of a lock state of the strider 2 established by the latch mechanism and a lock state that precludes cancellation of the lock state of the striker 2, a housing 11 that stores the lock mechanism, and a key rotor 83 that is disposed in the housing 11 for direct connection to a paddle 4 of a key cylinder 3 disposed in a door 1 so that rotational drive force of the paddle 4 is transferred to switch the lock mechanism between the unlock state and the lock state. The key rotor 83 includes a paddle connection part 86 that allows a tip of the paddle 4 to be engaged so as not to be relatively rotatable, and is movable while penetrating therethrough along an axial direction.

Description

  The present invention relates to a door lock device attached to a door of a vehicle.

  This type of door lock device includes a latch mechanism having a fork that holds a striker provided on the vehicle body side and a claw that engages the fork and holds the striker in a locked state. In addition, the door lock device includes a lock mechanism having an unlock position that can be engaged with the claw and a link that is movable between a lock position that cannot be engaged with the claw. The lock mechanism further includes a lock plate that is operated by a key, an actuator, and the like, and the link is moved to a lock position and an unlock position by the lock plate. When the door is opened, key operation or remote control operation is performed to change the lock mechanism from the locked state to the unlocked state, and then operate the door handle. Accordingly, the link is opened by the open lever connected to the door handle and engaged with the claw. As a result, the claw rotates and the engagement with the fork is released, and the fork rotates and the striker is released.

  In the door lock device, a key lever for operating the lock plate by a key operation is provided in the door lock device. The rotational operation force of the key cylinder disposed on the door is transmitted to the key lever via a long and narrow bar-shaped connecting rod disposed so as to extend in the vertical direction inside the door.

  However, in this structure, it is possible to operate the connecting rod from the gap between the door and the door glass, and in this case, the door lock device is unlocked illegally. That is, in this structure, the rotational operating force of the key cylinder is converted into the vertical movement of the connecting rod, and the vertical movement of the connecting rod is converted again into the rotation of the lock plate by the door lock device. Therefore, when an unauthorized tool is inserted through the gap between the door glasses and the connecting rod is operated in the vertical direction, the door lock device can be unlocked illegally.

  On the other hand, Patent Document 1 describes a door lock device in which a paddle protruding from a key cylinder is directly connected to a key lever. In this door lock device, the rotation operating force of the key cylinder can be directly transmitted to the lock plate for rotation without interposing a connecting rod extending in the vertical direction. Further, even if an unauthorized tool is inserted through a gap such as a door glass, it is extremely difficult to rotate the paddle, so that unauthorized unlocking can be prevented.

  However, in Patent Document 1, when a collision to the door (side collision) occurs, the key cylinder moves to the inside of the vehicle due to the collision. Therefore, the door lock device connected via the paddle is pushed to the inside of the vehicle. There is a possibility to move. In this case, the door trim disposed inside the door may be pushed by the door lock device and protrude toward the passenger in the vehicle. Further, when the door lock device moves, there is a possibility that the engagement of the striker by the latch mechanism cannot be released due to resistance even if the door lock device is in the unlocked state. As a result, further reinforcement measures for suppressing the movement of the door lock device are required.

Open 2002-129804

  It is an object of the present invention to provide a door lock device that can reduce the amount of movement in a door at the time of a side collision.

  In order to solve the above problems, a door lock device of the present invention includes a latch mechanism capable of engaging and disengaging a striker, an unlocked state capable of releasing the striker by the latch mechanism, and releasing the striker. A lock mechanism that can be switched to an impossible lock state, a housing that houses at least the lock mechanism, and a paddle of a key cylinder that is disposed in the housing and disposed on the door is directly connected to drive rotation of the paddle. A key rotor that transmits a force to switch the lock mechanism to an unlocked state and a locked state, and the key rotor is relatively non-rotatably engageable with the tip of the paddle; In addition, the paddle has a paddle connecting portion that can penetrate and move along the axial direction.

  According to this door lock device, when an impact is applied to the door and the key cylinder moves to the inside of the vehicle, the paddle penetrates the key rotor, so that the key rotor can be prevented from moving together with the paddle. Therefore, the movement amount of the door lock device can be suppressed with respect to the movement amount of the key cylinder due to the collision. As a result, the door lock device can be prevented from being damaged, the door cannot be prevented from being opened, and the safety of the passenger at the time of collision can be improved.

In this door lock device, it is preferable that the housing includes a support portion on which the key rotor is disposed, and the support portion protrudes so as to be positioned outside the housing.
In this case, it is preferable that the key rotor includes an elastically deformable engagement arm portion that is attached to the support portion of the housing and engages with the support portion so as to be rotatable and cannot be detached.
In this way, it is possible to reliably prevent interference between the paddle penetrating the paddle connecting portion of the key rotor and the housing. Therefore, since the load on the door lock device at the time of a side collision can be reduced, the movement amount of the door lock device with respect to the movement amount of the key cylinder can be reduced. Further, since it is not necessary to provide a relief hole or the like for preventing interference in the housing, it is possible to improve the sealing performance of the housing and ensure waterproofness.

  Preferably, a resin intermediate transmission member that transmits the rotational driving force of the key rotor to the lock mechanism is disposed so as to be positioned on the vehicle inner side along the axial direction of the paddle coupling portion of the key rotor. In this way, when the key cylinder moves to the inside of the vehicle, the tip of the paddle collides with the intermediate transmission member. At this time, the resin-made intermediate transmission member serves as a cushioning material that cushions an impact caused by a paddle collision. Therefore, it can prevent more reliably that a door lock apparatus moves with a paddle.

  Further, the housing has an insertion port on the key cylinder side and an escape port on the inner side of the vehicle. The housing penetrates along the axial direction of the paddle of the key cylinder and rotatably mounts the key rotor. It is preferable to provide a rotor mounting part. If it does in this way, when a paddle penetrates a key rotor, it can prevent colliding with a housing. Therefore, the movement amount of the door lock device when the key cylinder moves to the inside of the vehicle can be reliably suppressed.

  In the door lock device of the present invention, when an impact is applied to the door and the key cylinder moves to the inside of the vehicle, the paddle penetrates the key rotor, so that the movement amount of the door lock device relative to the movement amount of the key cylinder can be suppressed. As a result, the door lock device can be prevented from being damaged, the door cannot be prevented from being opened, and the safety of the passenger at the time of collision can be improved.

It is a side view showing the door lock device of a 1st embodiment concerning the present invention. (A) is the front view located in the vehicle inside of a door lock apparatus, (B) is principal part sectional drawing of (A). The 1st case of a housing is shown, (A) is a front view, (B) is sectional drawing. The 2nd case of a housing is shown, (A) is a front view, (B) is sectional drawing. The latch mechanism of a door lock apparatus is shown, (A) is a side view which shows a door open state, (B) is a side view which shows a door closed state. It is a front view which shows the locking mechanism of a door lock apparatus. It is a disassembled perspective view which shows each component of FIG. (A) is a front view which shows a lock operation state, (B) is a front view which shows an unlock operation state. (A) is sectional drawing which shows the door lock apparatus of 2nd Embodiment, (B) is a principal part expanded sectional view of (A), (C) is a perspective view of the key rotor of 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a door lock device 10 according to a first embodiment of the present invention. The door lock device 10 is attached to a door 1 of a vehicle, and includes a housing 11, a latch mechanism that detachably locks a striker 2 disposed on a vehicle body, and locks the striker 2 by the latch mechanism. A lock mechanism that switches between a unlockable state that can be released and a lock state that cannot be released. In the present embodiment, the paddle 4 protruding from the key cylinder 3 is directly connected to the housing 11 so as to be movable through in the thickness direction of the door so that sufficient safety can be ensured even if a side collision occurs. It is.

  The key cylinder 3 is disposed so that its key insertion hole is located outside the door 1, and a door lock device is inserted through a paddle 4 connected to the cylinder by inserting a regular key and rotating the cylinder. 10 is unlocked and locked. The key cylinder 3 cannot be operated to rotate because the built-in tumbler is not completely inserted into the cylinder when an illegal key is inserted into the key insertion hole. Therefore, the door lock device 10 cannot be unlocked and locked.

  The paddle 4 is made of metal connected to the cylinder using a universal joint structure. A rotor coupling portion 5 is provided at the tip of the paddle 4 so as to engage with the key rotor 83 in a relatively non-rotatable manner and to be movable through in the axial direction. The rotor connecting portion 5 includes a plurality of locking pieces 6 that protrude radially outward at a predetermined interval in the circumferential direction and extend along the axial direction.

  As shown in FIGS. 1 and 2, the housing 11 of the door lock device 10 houses a first case 12 that houses a lock mechanism, a second case 26 that closes the opening of the first case 12, and a latch mechanism. A third case 36 is provided.

  As shown in FIG. 1 and FIGS. 3A and 3B, the first case 12 has an L shape in a plan view including a lock mechanism disposing portion 13 and a latch mechanism cover portion 20. The first case 12 is disposed outside the vehicle, and is disposed so that the lock mechanism disposing portion 13 is positioned in parallel with the door panel.

  The lock mechanism disposing portion 13 is provided with a mounting shaft portion 14 on which a lock plate 54 and a key switch lever 73 are pivotally mounted so as to be pivoted substantially at the upper center. In addition, an attachment shaft portion 15 that pivotally mounts the inner lever 68 is provided at the lower right side of the lock mechanism disposition portion 13. A shaft support hole 16 for rotatably arranging the knob lever 91 is provided on the left side of the mounting shaft portion 15. A cam member disposing portion 17 and a drive motor disposing portion 18 are provided on the upper left side of the shaft support hole 16. On the right side of the drive motor arrangement portion 18, a connector arrangement portion 19 for arranging a connector 104 for electrically connecting a signal line, a power line and the like is provided. The latch mechanism cover 20 covers the opening of the third case 36 in which the latch mechanism is disposed. The latch mechanism cover 20 is provided with a mounting hole (not shown) for rotatably mounting the outer lever 65.

  The first case 12 of the present embodiment is provided with a support shaft portion 21 on which a key lever 78 is rotatably mounted on the upper right side of the mounting shaft portion 14 on which the lock plate 54 is mounted. The support shaft portion 21 is provided so as to protrude horizontally parallel to the mounting shaft portion 14. On the outer side of the support shaft portion 21, a support portion 22 for integrally disposing the key rotor 83 so as to be rotatable and not removable is integrally provided so as to protrude outward. The support portion 22 includes a mounting hole 23 for mounting the key rotor 83. The mounting hole 23 has a shaft center serving as a rotation shaft extending along the axial direction of the support shaft portion 21. In the present embodiment, the mounting hole 23 is configured to extend obliquely upward by a predetermined angle toward the outside of the door 1. ing. The mounting hole 23 is provided with a mounting step 24 that protrudes inwardly at one end opening located on the inner side of the vehicle. Further, a protective wall 25 that covers a connection portion between the key rotor 83 and the rotary lever 88 is provided on the outer peripheral edge of the support portion 22 so as to protrude toward the vehicle interior side.

  As shown in FIG. 1 and FIGS. 4A and 4B, the second case 26 closes the lock mechanism disposing portion 13 of the first case 12. The second case 26 is disposed inside the vehicle so as to be positioned in parallel with the door panel.

  The second case 26 is provided with a cutout portion 27 that exposes the third case 36 that is attached to the latch mechanism cover portion 20 of the first case 12. A bearing portion 28 is provided at a position facing the mounting shaft portion 14 of the lock plate 54, and a bearing portion 29 is provided at a position facing the mounting shaft portion 15 of the inner lever 68. An insertion hole 30 is provided around the bearing portion 29 for projecting the inner handle connecting portion 70 of the inner lever 68 to the outside. A shaft support portion 31 is provided at a position opposite to the shaft support hole 16 of the knob lever 91. An insertion hole 32 that penetrates the lock knob connecting portion 93 of the knob lever 91 and projects outward is provided in the lower portion of the shaft support portion 31. A connector connection port 33 for exposing the connector 104 to the outside is provided at a position opposite to the connector arrangement portion 19. On the outer surface side of the second case 26, a cable 102 connected to an inner handle (not shown) for opening the door and a lock knob (not shown) for door locking are located on the left side of the insertion hole 32. ) Is provided with a cable fixing portion 34 for fixing the cable 103 connected thereto. In the present embodiment, a through hole 35 is provided at a position opposed to the support shaft portion 21 of the key lever 78 to allow the input portion 81 of the key lever 78 to pass through and to be exposed to the outside.

  The third case 36 is attached to the latch mechanism cover portion 20 of the first case 12 as shown in FIGS. 1 and 5A and 5B. The third case 36 includes a resin fence block 37 disposed on the latch mechanism cover portion 20 side, and a metal safety plate 42 disposed on the outside. The fence block 37 is provided with an insertion recess 38 that is a space through which the striker 2 is inserted so as to be recessed toward the latch mechanism cover portion 20. An attachment portion 39 for rotatably mounting a fork 44 constituting a latch mechanism is provided above the insertion recess 38. A mounting portion 40 for rotatably mounting the claw 46 is provided below the insertion recess 38. An insertion hole 41 through which the operation receiving portion 48 of the claw 46 is inserted and protruded into the lock mechanism arrangement portion 13 is provided on the left side of the mounting portion 40. The safety plate 42 is provided with an insertion groove 43 through which the striker 2 is inserted at a position facing the insertion recess 38.

  The latch mechanism assembled to the third case 36 includes a fork 44 that removably locks the striker 2 and a claw 46 that engages the fork 44 and maintains the state in which the fork 44 holds the striker 2. The fork 44 is substantially U-shaped with a locking groove 45 through which the striker 2 can be inserted. The fork 44 is urged to an open position shown in FIG. 5A by a spring (not shown). The claw 46 includes a locking portion 47 that locks the fork 44. The claw 46 is urged to a locking position shown in FIG. 5B by a spring (not shown). Further, the claw 46 includes an operation receiving portion 48 that passes through the insertion hole 41 of the third case 36 and is positioned in the lock mechanism disposition portion 13.

  In this latch mechanism, when the striker 2 enters the locking groove 45 of the fork 44 by closing the door 1, the striker 2 is pressed by the closing force of the door 1, and FIG. ) Turn counterclockwise as shown. Then, when the locking portion 47 of the claw 46 is locked to the fork 44, the locked state of the striker 2 by the fork 44 is maintained. In this state, when the operation receiving portion 48 of the claw 46 is operated upward, the claw 46 is rotated clockwise, so that the locking of the fork 44 and the claw 46 is released. As a result, the fork 44 is rotated to the open position shown in FIG. 5A by the biasing force of the spring, and the lock of the striker 2 is released.

  The lock mechanism assembled to the first case 12 switches between an unlocked state in which the striker 2 can be unlocked by the latch mechanism and a locked state in which the striker 2 cannot be unlocked. As shown in FIG. 6, this locking mechanism includes a link 49 that operates the claw 46 in the unlocking direction, and a lock that enables (unlocks) or disables (locked) the claw 46 by the link 49. Plate 54.

  The locking mechanism includes an outer lever 65 (shown in FIG. 1) as an outer open system and an inner lever 68 as an inner open system in order to open the latch mechanism via the link 49. Further, the lock mechanism includes a key operation force transmission mechanism that is an outer lock system, a knob operation force transmission mechanism that is an inner lock system, and a motor operation force transmission mechanism that is an electric lock system. The key operation force transmission mechanism transmits the operation force of the key cylinder 3 disposed on the door 1 to the lock plate 54. The key switch lever 73, the key lever 78, the key rotor 83, and the rotation as an intermediate transmission member. And an expression lever 88. The knob operation force transmission mechanism transmits the operation force of the lock knob disposed on the door 1 to the lock plate 54 and includes a knob lever 91. The motor operation force transmission mechanism operates the lock plate 54 in accordance with a remote control operation, and includes a drive motor 97 and a cam member 99.

  As shown in FIGS. 6 and 7, the link 49 is moved upward in response to the operating force of the outer lever 65 or the inner lever 68, so that the link 49 comes into contact with the operation receiving portion 48 of the claw 46. It is actuated in the unlocking direction. The link 49 has a lower end coupled to the outer lever 65 and an upper end coupled to the lock plate 54. When the lock plate 54 is rotated, the claw 46 can be operated in the unlocking direction and the operation is disabled. Moved to a possible lock position. Specifically, the link 49 is provided with a passive portion 50 to which the outer lever 65 is coupled at the lower end and to which the inner lever 68 abuts. An operation unit 51 that abuts on the operation receiving unit 48 of the claw 46 is provided above the passive unit 50. The link 49 is provided with a lock plate connecting portion 52 extending from the operation portion 51 in a substantially J shape. The lock plate connecting portion 52 is provided with a slide groove 53 so as to move relative to the lock plate 54 when sliding upward.

  The lock plate 54 moves the link 49 to the unlock position and the lock position, and is connected to the link 49 via a link biasing spring 60 described later. The lock plate 54 includes a cylindrical mounting portion 55 that is rotatably attached to the mounting shaft portion 14 of the first case 12, and is formed in a substantially fan shape with the cylindrical mounting portion 55 as a top portion. The cylindrical mounting portion 55 serves as a mounting portion for externally mounting the link biasing spring 60, and a spring locking portion 56 for locking one end of the link biasing spring 60 is provided on the left side thereof. ing. The lock plate 54 is provided with a spring insertion part 57 having a groove extending toward the lock rotation side and having a groove through which the link urging spring 60 is inserted, on the side where the link 49 is disposed. A knob lever engaging portion 58 having a substantially U-shaped groove is provided on the side where the knob lever 91, which is opposite to the spring insertion portion 57, is provided. Further, the lock plate 54 is provided with an unlock operation passive portion 59 that receives an unlock operation by the key switch lever 73 in the vicinity of the cylindrical mounting portion 55. The edge of the lock plate 54 on the side where the spring insertion portion 57 is provided constitutes a lock operation passive portion that receives a lock operation by the key switch lever 73.

  The link biasing spring 60 is a biasing member that is disposed on the lock plate 54 and biases the link 49 toward the unlock position with respect to the lock plate 54. The link biasing spring 60 includes a winding portion 61 that is fitted on the cylindrical mounting portion 55. One end of the wire rod protruding from the winding portion 61 is an arm portion 62 that extends on the lock plate 54 and extends through the spring insertion portion 57. A connecting portion 63 that is inserted and connected to the slide groove 53 of the link 49 located on the spring insertion portion 57 is provided at the tip of the arm portion 62. Further, the other end of the wire protruding from the winding portion 61 constitutes a locking portion 64 that is locked to the spring locking portion 56.

  The outer lever 65 is rotatably attached to the latch mechanism cover portion 20 so as to penetrate the lock mechanism arrangement portion 13 and extend inward and outward. The outer lever 65 is provided with an outer handle connecting portion 66 (see FIG. 1) for connecting an outer handle provided on the vehicle outer side of the door 1 at a portion protruding outward from the lock mechanism disposing portion 13. Further, the outer lever 65 is provided with a link connecting portion 67 that is connected to the passive portion 50 of the link 49 at an end portion provided in the lock mechanism arranging portion 13.

  The inner lever 68 conducts the operation of the inner handle provided on the inner side of the door 1 to the link 49 and opens the claw 46. The inner lever 68 includes an attachment portion 69 that is rotatably attached to the attachment shaft portion 15 of the first case 12. The inner lever 68 is provided with an inner handle connecting portion 70 that extends from the insertion hole 30 of the second case 26 so as to protrude to the outside of the housing 11 and is connected to the inner handle via the cable 102. Further, the inner lever 68 is provided with a link actuating portion 71 having a substantially J shape so that the passive portion 50 of the link 49 is positioned on the rotation locus centering on the attachment portion 69 in the assembled state. . Further, the inner lever 68 is provided with an engaging portion 72 that engages with the knob lever 91 located at the lock position and moves the link 49 to the unlock position via the knob lever 91 and the lock plate 54. .

  The key switch lever 73 is pivotally attached to the mounting shaft portion 14 that pivotally attaches the lock plate 54, transmits the operating force of the key cylinder 3 to the lock plate 54, and operates the lock plate 54 to the lock position or the unlock position. Is. The key switch lever 73 includes a cylindrical mounting portion 74 that is fitted on the mounting shaft portion 14. The cylindrical attachment portion 74 is provided with an engaging portion 75 that engages with the key lever 78 by engaging with each other so as to form a concentric annular shape. On the side of the knob lever 91 of the engaging portion 75, an unlock operation portion 76 that abuts on the unlock operation passive portion 59 of the lock plate 54 to unlock the lock plate 54 is provided. Further, the key switch lever 73 is provided with a lock operating portion 77 that protrudes in a fan shape from the engaging portion 75 toward the lock plate 54 and abuts against the side edge of the lock plate 54 to lock the lock plate 54. Yes.

  The key lever 78 is housed in the housing 11 and transmits the operation force of the key cylinder 3 to the lock plate 54 via the key switch lever 73 to operate the lock plate 54 to the lock position or the unlock position. The key lever 78 is provided with a cylindrical mounting portion 79 that is externally fitted to the support shaft portion 21. An input portion 81 that protrudes (exposes) outward through the through hole 35 of the second case 26 is provided at the tip of the cylindrical attachment portion 79. Specifically, the cylindrical attachment portion 79 is provided with a columnar through portion 80 that penetrates the through hole 35. An input portion 81 for mounting the rotary lever 88 so as to be relatively unrotatable is protruded from the end of the penetrating portion 80 so as to form a rectangular cross section. In addition, an engaged portion 82 projects from the cylindrical attachment portion 79 so as to form a fan shape. The engaged portion 82 is engaged with and engaged with the engaging portion 75 of the key switch lever 73, so that the rotational driving force around the input portion 81 is applied to the lock plate 54 via the key switch lever 73. It is the drive part which transmits.

  The key rotor 83 is rotatably disposed in the mounting hole 23 of the support portion 22 of the first case 12, and transmits the operation force of the key cylinder 3 to the key lever 78 via the rotary lever 88. The key rotor 83 includes a main body having an outer diameter slightly smaller than the mounting hole 23. One end of the key rotor 83 is provided with a flange portion 84 having an outer diameter larger than that of the mounting hole 23 and in contact with an edge on one side of the mounting step portion 24. The key rotor 83 is provided with an engaging arm portion 85 that can be elastically deformed at a predetermined interval in the circumferential direction. The engaging arm portion 85 engages with the other edge of the mounting step portion 24 by mounting the key rotor 83 in the mounting hole 23. As a result, the mounting step portion 24 is sandwiched between the flange portion 84 and the engaging arm portion 85, and the key rotor 83 can be mounted on the support portion 22 in a rotatable and non-detachable manner. Further, the key rotor 83 is provided with a paddle connecting portion 86 that penetrates along the rotation axis toward the flange portion 84. The paddle connecting portion 86 is formed of a hole penetrating in a substantially + shape. Then, by inserting the locking piece 6 of the rotor connecting portion 5 into the radially projecting groove, the rotor connecting portion 5 can be engaged relatively non-rotatably and can be moved through along the axial direction. Connect directly. Furthermore, the key rotor 83 is provided with an output unit 87 that outputs its rotational driving force. The output portion 87 is a columnar shape projecting from the flange portion 84, and its axial center is located in parallel with the axial center of the paddle connecting portion 86 at a predetermined interval in the radial direction.

  The rotary lever 88 is an intermediate transmission member that transmits the rotational driving force of the key rotor 83 to the key lever 78. The rotary lever 88 is made of a resin plate and includes a lever connecting portion 89 that is connected to the input portion 81 of the key lever 78 and a rotor connecting portion 90 that is connected to the output portion 87 of the key rotor 83. The lever connecting portion 89 is formed of a rectangular hole corresponding to the input portion 81. Thereby, the pivoting lever 88 is configured to be pivotable about the lever connecting portion 89. The rotor connecting portion 90 is formed of an oval hole that connects the output portion 87 by penetration. The rotary lever 88 is disposed so as to be positioned inside the vehicle outside the housing 11 by being connected to the input portion 81 of the key lever 78 and the output portion 87 of the key rotor 83. The rotary lever 88 and the key lever 78 are connected by fitting together an input portion 81 having a rectangular cross section of the key lever 78 and a lever connecting portion 89 formed of a rectangular hole of the rotary lever 88. The shape of the input portion 81 and the lever connection portion 89 is not limited to a rectangular shape, and may be other shapes. For example, the input portion 81 and the lever connection portion 89 are connected by forming serrations and fitting them together. Also good.

  The knob lever 91 operates the lock plate 54 by operating the lock knob inside the door 1 to move the link 49 to the lock position or the unlock position. The knob lever 91 includes a rotation shaft portion 92 that is pivotally attached to the shaft support hole 16 of the first case 12. Further, the knob lever 91 is provided with a lock knob connecting portion 93 that protrudes from the insertion hole 32 of the second case 26 to the outside of the housing 11 and is connected to the lock knob via the cable 103. Further, the knob lever 91 is provided with a connecting arm portion 94 that is locked to the knob lever engaging portion 58 of the lock plate 54 so as to extend in an approximately L shape. A cam receiving portion 95 that engages with the cam groove 101 of the cam member 99 protrudes from the connecting arm portion 94 at the back. The knob lever 91 is provided with an engagement receiving portion 96 that engages with the engagement portion 72 in a state where the knob lever 91 is moved to the lock position.

  The drive motor 97 rotates the cam member 99 forward and backward, and a worm 98 is attached to its output shaft.

  The cam member 99 is rotatably disposed so as to be positioned below the cam receiving portion 95 of the knob lever 91. A worm wheel portion 100 that meshes with the worm 98 is provided on the outer peripheral portion of the cam member 99. Further, the cam member 99 is provided with a cam groove 101 for moving the knob lever 91 to the locked position and the unlocked position on the upper surface located on the knob lever 91 side. The cam member 99 is positioned at a neutral position by a biasing spring (not shown). Then, the link 49 is locked via the knob lever 91 and the lock plate 54 by rotating the cam receiving portion 95 so as to move to the center side. Further, the link 49 is unlocked via the knob lever 91 and the lock plate 54 by rotating the cam receiving portion 95 so as to move to the outer peripheral side.

  In the door lock device 10 configured as described above, the key rotor 83 that directly connects the paddle 4 of the key cylinder 3 is disposed outside the housing 11, so that the housing 11 can be reduced in size, and waterproof at low cost. it can. In addition, in consideration of the occurrence of a side collision, it is not necessary to provide the housing 11 with an escape hole or the like for preventing interference with the paddle 4 protruding from the key cylinder 3, so that the sealing performance of the housing 11 is improved and waterproof. Can be secured.

  Next, the operation of the lock mechanism in the door lock device 10 will be described.

  First, in the unlocked state shown in FIG. 6, when the outer handle is operated, the outer lever 65 moves the passive portion 50 of the link 49 directly upward. As a result, the link 49 presses and rotates the operation receiving portion 48 of the claw 46, thereby releasing the engagement with the fork 44 and releasing the lock of the striker 2 by the fork 44.

  Further, when the inner handle is opened, the inner lever 68 rotates via the cable 102 so that the link actuating portion 71 presses the passive portion 50 of the link 49 upward. As a result, the link 49 releases the engagement with the fork 44 by rotating the claw 46, and the engagement of the striker 2 with the fork 44 is released.

  In this unlocked state, when the normal key is inserted into the key cylinder 3 on the outside of the vehicle and the locking operation is performed, as shown in FIG. 8 (A), the paddle 4 is rotated clockwise in the figure, so that the key rotor 83 is interlocked. And rotate in the same direction. Then, the rotary lever 88 rotates counterclockwise via the output unit 87, and the key lever 78 rotates in the same direction in conjunction with it. As a result, when the key switch lever 73 is rotated clockwise, the lock operating portion 77 presses the lock plate 54 to rotate clockwise to the lock position. As a result, the link 49 rotates so as to incline upward to the left, and the operation unit 51 is in a locked state in which the operation unit 51 is separated from the operation receiving unit 48 of the claw 46.

  Further, when the lock knob inside the vehicle is locked in the unlocked state, the knob lever 91 is rotated counterclockwise via the cable 103, so that the lock plate 54 is interlocked and rotated clockwise. As a result, the link 49 is in a locked state in which the link 49 is pivoted away from the claw 46.

  Further, when the locking operation is performed by the remote controller in the unlocked state, the cam member 99 is rotated by the drive motor 97, so that the knob lever 91 and the lock plate 54 are rotated similarly to the locking operation of the inner lock system. The link 49 rotates to the lock position in conjunction with the plate 54.

  In this locked state, even if the link 49 is moved upward through the outer lever 65 by operating the outer handle, the operation unit 51 does not contact the operation receiving unit 48. Therefore, the striker 2 cannot be unlocked by the fork 44 and the door 1 cannot be opened.

  However, in this embodiment, the knob lever 91 is provided with the engagement receiving portion 96 and the inner lever 68 is provided with the engagement portion 72. Therefore, when the door 1 is to be opened by operating the inner handle in the locked state, first, the engaging portion 72 of the inner lever 68 is engaged with the engaging receiving portion 96 of the knob lever 91, so that the knob lever 91 is Rotate clockwise. As a result, the lock plate 54 rotates counterclockwise, and the link 49 is moved to the unlock position. Subsequently, the link actuating portion 71 of the inner lever 68 presses the passive portion 50 of the link 49 upward, and the operation portion 51 of the link 49 comes into contact with the operation receiving portion 48 of the claw 46, whereby the striker 2 by the fork 44 is moved. The door 1 can be opened by releasing the lock (override function).

  On the other hand, in this locked state, when a normal key is inserted into the key cylinder 3 on the outside of the vehicle and the unlocking operation is performed, the paddle 4 rotates counterclockwise as shown in FIG. It rotates in the same direction in conjunction. Then, the rotary lever 88 rotates clockwise via the output unit 87, and the key lever 78 rotates in the same direction in conjunction with it. As a result, when the key switch lever 73 is rotated counterclockwise, the unlock operation portion 76 presses the lock plate 54 to rotate counterclockwise to the unlock position. As a result, the link 49 is rotated so as to extend substantially directly above, and the operation portion 51 is brought into an unlocked state in which the operation portion 51 can come into contact with the operation receiving portion 48 of the claw 46.

  Further, when the lock knob inside the vehicle is unlocked in the locked state, the knob lever 91 is rotated clockwise through the cable 103, so that the lock plate 54 is interlocked and rotated counterclockwise. As a result, the unlocked state in which the link 49 is rotated so as to approach the claw 46 is obtained.

  Further, when the unlocking operation is performed by the remote controller in the locked state, the cam member 99 is rotated by the drive motor 97, so that the knob lever 91 and the lock plate 54 are rotated similarly to the unlocking operation of the inner lock system. The link 49 rotates to the unlock position in conjunction with the lock plate 54.

  And even if a non-user attempts to unlock the outer lock system by inserting a rod-like tool through the gap between the door 1 and the door glass in order to unlock the door 1 illegally in the locked state, The door lock device 10 cannot be unlocked illegally. That is, when an unauthorized tool is used, the vertical operation is easy, but the rotation operation is extremely difficult. In the door 1, only the paddle 4 of the key cylinder 3 is exposed so as to be operable with an unauthorized tool. And if this paddle 4 is not rotated, the door lock apparatus 10 cannot be unlocked. Therefore, unlocking by an unauthorized operation of the outer lock system can be prevented.

  On the other hand, when the paddle 4 of the key cylinder 3 is extended in the lateral direction and the paddle 4 is directly connected to the key rotor 83 of the housing 11, when the side collision accident occurs, the key cylinder 3 moves to the inside of the vehicle together with the door panel. At this time, in the present embodiment, since the paddle connecting portion 86 of the key rotor 83 is configured by a hole penetrating along the axial direction, the paddle 4 penetrates the key rotor 83. Moreover, in the present embodiment, the support portion 22 on which the key rotor 83 is disposed is provided so as to be positioned outside the housing 11. Therefore, it is possible to prevent the key rotor 83 and the housing 11 from being moved together by being pressed by the paddle 4. In other words, the movement amount of the door lock device 10 can be suppressed with respect to the movement amount of the key cylinder 3 due to the collision. Further, the load on the door lock device 10 can be reduced. As a result, damage to the door lock device 10 can be prevented. Further, it is possible to prevent the door 1 from being unable to be opened due to a resistance between the striker 2 and the fork 44 as the door lock device 10 moves. As a result, the safety of the occupant during a collision can be improved.

  Further, since the resin-made rotary lever 88 is disposed so as to be located inside the vehicle along the axial direction of the paddle connecting portion 86 of the key rotor 83, when the key cylinder 3 moves to the inside of the vehicle, the paddle 4 The tip of the cylinder collides with the rotary lever 88. At this time, since the rotary lever 88 serves as a cushioning material, it is possible to more reliably prevent the door lock device 10 from moving together with the paddle 4. In addition, when the impact to the rotary lever 88 by the paddle 4 is large, the rotary lever 88 may be broken by the impact. As a result, the paddle 4 can move until it abuts against the inner panel of the door 1 without pressing the door lock device 10 toward the inside of the vehicle. However, the rotary lever 88 may be configured not to interfere with the paddle 4 by adjusting the connecting position with the key rotor 83.

  FIG. 9 shows the door lock device 10 of the second embodiment. This second embodiment is different from the first embodiment in that the key lever 78 and the rotary lever 88 that is an intermediate transmission member are eliminated, and the key switch lever 73 is directly rotated by the key rotor 83. .

  Specifically, as shown in FIGS. 9A and 9B, the housing 11 is provided with a first support portion 105 in the first case 12 and a second support portion 111 in the second case 26. Is provided. The support portions 105 and 111 are provided with mounting holes 106 and 112, respectively, thereby constituting a single rotor mounting portion 116 on which the key rotor 83 is rotatably mounted.

  The first support portion 105 located on the key cylinder 3 side is provided with a first mounting hole 106 having an insertion port 107 into which the paddle 4 is inserted. The first mounting hole 106 includes a first locking step portion 108 that gradually decreases in diameter from the insertion port 107 side toward the vehicle inner side, and that has the smallest inner diameter at the approximate center. A second locking step 109 is further formed on the inner side of the first locking step 108. A first engaging stepped portion 110 having a penetrating portion on the side of the mounting shaft portion 14 of the key switch lever 73 is provided at an end located on the vehicle inner side.

  The second support portion 111 located on the inner side of the vehicle is provided with a second mounting hole 112 having an escape port 113 that penetrates to the inner side of the vehicle. The second mounting hole 112 has the smallest inner diameter on the escape port 113 side, and a third locking step 114 is formed on the vehicle outer side. A second engaging step portion 115 similar to the first engaging step portion 110 is provided at the end located on the vehicle outer side.

  When the second case 26 is assembled to the first case 12, one support portion is formed in the housing 11. The first mounting hole 106 and the second mounting hole 112 communicate with each other in the axial direction. The first mounting hole 106 and the second mounting hole 112 have an insertion port 107 on the key cylinder 3 side and an escape port 113 on the inner side of the vehicle. One rotor mounting portion 116 penetrating along the axial direction is formed. The rotor mounting portion 116 is mounted so that the key rotor 83 cannot move in the axial direction by the locking step portions 108, 109, 114 and the engaging step portions 110, 115 of the cases 12, 26. A key rotor 83 is rotatably mounted.

  As shown in FIG. 9C, the key rotor 83 according to the second embodiment includes a first mounting portion 117 located in the first locking step portion 108 and a second mounting portion 109 located in the second locking step portion 109. A mounting portion 118 and a third mounting portion 119 located in the third locking step portion 114 are provided. These mounting portions 117 to 119 each have a circular cross section with the same axis. In addition, a fourth mounting portion 120 is provided between the second mounting portion 118 and the third mounting portion 119 and is located in the engaging stepped portions 110 and 115. The fourth mounting portion 120 has a circular cross section whose axial center coincides with each of the mounting portions 117 to 119, and the lower portion thereof is engaged with and engaged with the engaging portion 75 of the key switch lever 73. The part 82 protrudes so as to form a fan shape. The key rotor 83 is provided with a paddle connecting portion 86 formed of a hole penetrating in a substantially + shape along the rotation axis from the first mounting portion 117 to the third mounting portion 119.

  In the door lock device 10 according to the second embodiment, the key rotor 83 is housed in the housing 11. An engaged portion 82 that is directly engaged with the key switch lever 73 is formed on the key rotor 83. Therefore, it is possible to improve the operability when the lock key is unlocked by inserting the regular key into the key cylinder 3. Moreover, since the number of parts can be reduced, the cost can be reduced. In addition, since there is no intermediate transmission member exposed to the outside of the housing 11, unauthorized unlocking can be more reliably prevented.

  Moreover, in the present embodiment, the key rotor 83 for connecting the paddle 4 is accommodated in the housing 11, but the rotor mounting portion 116 forms an escape port 113 on the vehicle interior side, so that the paddle 4 is mounted on the vehicle. Even if it moves inward, the paddle 4 does not interfere with the second case 26. Therefore, the movement amount of the door lock device 10 can be reduced with respect to the movement amount of the key cylinder 3 at the time of collision, and the movement of the housing 11 can be prevented.

  The door lock device 10 of the present invention is not limited to the configuration of the above-described embodiment, and the key rotor 83 is rotatably disposed in the housing 11, and the paddle 4 is rotated relative to the key rotor 83. Any configuration may be used as long as the paddle connecting portion 86 is provided so that the paddle 4 can be engaged and the paddle 4 can move through along the axial direction.

DESCRIPTION OF SYMBOLS 1 ... Door 2 ... Striker 3 ... Key cylinder 4 ... Paddle 5 ... Rotor connection part 10 ... Door lock apparatus 11 ... Housing 22 ... Support part 23 ... Mounting hole 44 ... Fork (latch mechanism) 46 ... Claw (latch mechanism)
49 ... Link (lock mechanism) 54 ... Lock plate (lock mechanism)
65 ... Outer lever (locking mechanism) 68 ... Inner lever (locking mechanism)
73 ... Key switch lever 78 ... Key lever 82 ... Engagement part 83 ... Key rotor 84 ... Hook part 85 ... Engagement arm part 86 ... Paddle connection part 88 ... Rotary lever (intermediate transmission member)
91 ... Knob lever (lock mechanism) 97 ... Drive motor (lock mechanism)
98 ... Worm (lock mechanism) 99 ... Cam member (lock mechanism)
107 ... Insertion port 113 ... Escape port 116 ... Rotor mounting part

Claims (5)

A latch mechanism capable of engaging and disengaging the striker;
A lock mechanism capable of switching between an unlocked state in which the striker can be unlocked by the latch mechanism and a locked state in which the striker cannot be unlocked;
A housing that houses at least the locking mechanism;
A key rotor disposed in the housing and directly connecting a paddle of a key cylinder disposed in the door, and transmitting the rotational driving force of the paddle to switch the lock mechanism between an unlocked state and a locked state;
In a door lock device comprising:
The key rotor includes a paddle connecting portion that can engage a tip end portion of the paddle so as not to be relatively rotatable, and the paddle is movable through the paddle along an axial direction.   The door lock device according to claim 1, wherein the housing includes a support portion on which the key rotor is disposed, and the support portion protrudes so as to be located outside the housing.   3. The door lock according to claim 2, wherein the key rotor includes an elastically deformable engagement arm portion that is mounted on a support portion of the housing and engages with the support portion in a rotatable and non-detachable manner. apparatus.   The resin intermediate transmission member for transmitting the rotational driving force of the key rotor to the lock mechanism is disposed so as to be located on the vehicle inner side along the axial direction of the paddle coupling portion of the key rotor. The door lock device according to any one of claims 1 to 3.   The housing has an insertion port on the key cylinder side and an escape port on the inside of the vehicle, penetrates along the axial direction of the paddle of the key cylinder and mounts the key rotor so as to be rotatable. The door lock device according to claim 1, further comprising a portion.

Images