JP6352889B2 - Vehicle door lock device - Google Patents

Description

  The present invention relates to a vehicle door lock device.

  2. Description of the Related Art A vehicle door lock device provided on a door capable of opening and closing a door opening formed on a side surface of a vehicle body is conventionally known.

This type of door lock device includes a latch mechanism that can hold a vehicle door in a closed state by engagement with a striker when the door is closed, and a housing that houses the latch mechanism. The latch mechanism further includes a latch that is rotatable and detachable from the striker, and a pole that is rotatable and detachable from the latch. In this specification, the mode of turning around a predetermined axis is expressed using the word “rotation”, but the word “rotation” can be used instead of this wording.
The latch is pivotable between an unlatched position that does not engage the striker (does not hold the closed state of the vehicle door) and a full latch position that can hold the striker (holds the closed state of the vehicle door). The pawl is pivotable between an engagement position that engages a latch located at the full latch position and holds the latch in the full latch position, and a non-engagement position spaced from the latch. Further, the latch is always urged to rotate toward the unlatched position by the urging force of the urging means, and the pole is always urged to rotate toward the engaging position.
The housing is formed with a striker entry groove into which the striker enters when the vehicle door is closed and communicates with the internal space of the housing.

  Furthermore, a door lock device including a courtesy switch (door switch) that detects whether the latch is located at a full latch position or an unlatch position is known (for example, Patent Document 1).

The present applicant has proposed a door lock device including a courtesy switch, which includes a switch lever that links the latch and the courtesy switch and that rotates in conjunction with a change in the rotational position of the latch (Japanese Patent Application No. JP-A-2006-27095). 2014-237366).
Further, this courtesy switch is connected to an electronic control unit (hereinafter referred to as ECU) provided in the vehicle, and the ECU is connected to a lighting device provided in the vehicle.

In this door lock device, the switch lever does not press the courtesy switch when the latch is located at the full latch position. Therefore, the courtesy switch is turned off. At this time, the ECU turns off the lighting device.
On the other hand, when the latch is rotated to the unlatched position, the switch lever presses the courtesy switch. Therefore, the courtesy switch is turned on. At this time, the ECU turns on the lighting device.

JP 2005-282223 A

(Problems to be solved by the invention)
A support wall is provided inside the housing of the door lock device. A latch and a pole are rotatably supported on one surface of the support wall. On the other hand, the courtesy switch is disposed in a space opposite to the latch with the support wall interposed therebetween.
Therefore, the support wall is formed with a through hole through which the switch lever can be moved relatively.

When the vehicle door is in the open state, the striker entry groove of the door lock device is exposed to the outside at the end face of the vehicle door.
Therefore, for example, if the vehicle is washed when the vehicle door is in the open state, water may enter the housing through the striker entry groove.

  Since a through hole is formed in the support wall, water entering the housing may pass through the through hole and adhere to the courtesy switch that is an electrical component. If water adheres to the courtesy switch, the courtesy switch may malfunction.

  The present invention is a structure in which a switch lever that links a latch and a switch that is an electrical component penetrates through a through hole formed in a support wall that supports the latch in a housing that houses the latch and the switch, in a relatively movable manner. An object of the present invention is to provide a vehicle door lock device capable of suppressing the liquid that has entered the housing from the outside from adhering to the switch.

(Means for solving the problem)
The present invention is provided between a housing provided on a vehicle door, a full latch position capable of holding the vehicle door in a closed state by engaging with a striker attached to a vehicle body, and an unlatching position for releasing the striker. A latch which is provided in the housing as being rotatable and is urged to move to the unlatched position, a support wall which is provided in the housing and supports the latch rotatably and has a through hole, A switch for detecting a rotational position of the latch, which is located on the opposite side of the latch with the support wall in between in the housing, and the latch and the switch while passing through the through hole so as to be relatively movable. A switch lever that links and switches the switch between an on state and an off state in conjunction with a change in the rotational position of the latch. When switch is positioned at the unlatched position, it is preferable the latch overlaps with at least a portion of the through hole when viewed in the thickness direction of the supporting wall.

A through hole is formed in the support wall that supports the latch. Therefore, if liquid adheres to the vehicle door when the vehicle door is in the open state, the liquid may enter the housing and further pass through the through-hole and head toward the switch side, which is an electrical component.
However, when the vehicle door is in the open state, the latch is positioned at the unlatched position by the biasing force of the biasing means, and the latch overlaps at least a part of the through hole when viewed in the thickness direction of the support wall.
Therefore, it is possible to suppress the risk that the liquid that has entered the housing passes through the through hole and goes to the switch that is the electrical component by the latch that is located at the unlatched position.

  According to another aspect of the present invention, a housing provided on a vehicle door, a full latch position capable of holding the vehicle door in a closed state by engaging a striker attached to a vehicle body, and an unlatch for releasing the striker. A latch provided in the housing so as to be pivotable between positions, a support wall provided in the housing for pivotally supporting the latch and having a through hole, and in the housing A switch for detecting the rotation position of the latch, which is located on the opposite side of the latch with a support wall interposed therebetween, and the latch and the switch are linked while penetrating the through hole so as to be relatively movable, A switch lever that switches between an on state and an off state of the switch in conjunction with a change in the rotational position of the latch, and the switch lever May be provided with pore blocking portion overlaps at least a portion of the through hole when viewed in the thickness direction of the support wall.

A through hole is formed in the support wall that supports the latch. Therefore, if liquid adheres to the vehicle door when the vehicle door is in the open state, the liquid may enter the housing and further pass through the through-hole and head toward the switch side, which is an electrical component.
However, the switch lever of this aspect includes a hole closing portion that overlaps at least a part of the through hole when viewed in the thickness direction of the support wall.
Therefore, it is possible to suppress the risk that the liquid that has entered the housing passes through the through hole and goes to the switch that is the electrical component by the hole closing portion of the switch lever.

  The hole closing portion positioned between the support wall and the switch may press the switch.

If comprised in this way, the hole obstruction | occlusion part of a switch lever will cover a switch.
Therefore, even if the liquid passes through the through hole of the support wall and goes to the switch side, it is possible to effectively suppress the liquid from adhering to the switch by the hole closing portion.

  The housing includes an inner wall that is located between the through hole and the switch and has a switch lever movement allowance groove in which the switch lever is disposed so as to be relatively movable, as viewed in the thickness direction of the inner wall. Sometimes, the hole closing portion may overlap at least a part of the switch lever movement allowance groove.

If comprised in this way, the inner wall provided in the housing will be located between the through-hole of a support wall, and a switch.
Therefore, even if the liquid passes through the through hole of the support wall and goes to the switch side, it is possible to effectively suppress the liquid from adhering to the switch by the internal wall.

  The housing may include a switch-side waterproof wall positioned between the through hole and the switch.

If comprised in this way, the switch side waterproofing wall provided in the housing will be located between the through-hole of a support wall, and a switch.
Therefore, even if the liquid passes through the through hole of the support wall and goes to the switch side, the switch-side waterproof wall can effectively prevent the liquid from adhering to the switch.

  The housing has a striker entry groove into which the striker enters when the vehicle door is closed, and a communication hole that communicates the striker entry groove with the internal space of the housing, and the latch is in the unlatched position. A part of the communication hole may be opened when positioned at the position, and the housing may include a latch-side waterproof wall positioned between the part of the communication hole and the through hole.

With this configuration, the latch-side waterproof wall provided in the housing is positioned between a part of the communication hole that connects the striker entry groove provided in the housing and the internal space of the housing, and the through hole of the support wall. To do.
Therefore, even if the liquid passes through the communication hole of the housing and enters the inside of the housing, the liquid can be prevented from moving toward the through hole by the latch side waterproof wall. Therefore, it can suppress effectively that a liquid adheres to a switch.

  The housing has a striker entry groove into which the striker enters when the vehicle door is closed and communicates with the internal space of the housing, and is located above the striker entry groove in the internal space of the housing. The switch may be provided.

If comprised in this way, a switch will be located above the striker approach groove | channel of the internal space of a housing.
Therefore, even if the liquid enters the housing through the striker entry groove, the risk of the liquid going to the switch is small. Therefore, it can suppress effectively that a liquid adheres to a switch.

  The housing may have a striker entry groove into which the striker enters when the vehicle door is closed and communicates with an internal space of the housing, and the through hole may be positioned above the striker entry groove.

  If comprised in this way, even if it is a case where a liquid penetrate | invades in a housing through a striker approach groove | channel, there is little possibility that this liquid will pass through a through-hole. Therefore, it can suppress effectively that a liquid adheres to a switch.

It is the side view seen from the vehicle inner side of the right vehicle door provided with the door lock device for vehicles of one embodiment of the present invention. It is a perspective view from the vehicle inner back of a door lock device. It is the perspective view seen from the vehicle inner back of the door lock device when a latch is located in an unlatching position, and shows a latch unit and an actuator unit separately. It is the perspective view seen from the vehicle inside back of the latch unit when the latch is located in the unlatched position, with the second housing removed. It is a rear view of a latch unit when a latch is located in an unlatch position, with the second housing removed. It is a front view of a latch unit when a latch is located in an unlatching position, with the second housing removed. It is the perspective view seen from the slanting lower part of the latch unit when a latch is located in an unlatching position. It is a rear view of a latch unit when a latch is located in a full latch position, with the second housing removed. It is the perspective view seen from the vehicle inside back of the actuator unit. It is the perspective view seen from the back slanting lower part of the actuator unit. It is a disassembled perspective view of an actuator unit. It is a disassembled perspective view of an actuator unit when it sees from the direction different from FIG. FIG. 13 is an exploded perspective view of the actuator unit when viewed from a direction different from FIGS. 11 and 12. It is the side view seen from the vehicle inside of the actuator unit which removed and showed the 2nd housing when the latch of the latch unit which omitted illustration was located in an unlatching position. It is a side view similar to FIG. 14 when a latch is located in a latch position. It is sectional drawing which follows the XVI-XVI arrow line of FIG. It is sectional drawing which follows the XVII-XVII arrow line of FIG. It is a side view which expands and shows the principal part of FIG. It is the expansion perspective view seen from the downward direction of the same site | part as FIG. It is sectional drawing which follows the XX-XX arrow line of FIG. It is an enlarged side view similar to FIG. 18 when the latch of the latch unit which abbreviate | omitted illustration is located in an unlatch position. FIG. 20 is an enlarged perspective view similar to FIG. 19 when the latch is located at the unlatched position. It is sectional drawing similar to FIG. 20 when a latch is located in an unlatching position. It is the side view seen from the vehicle inside when a latch of a latch, a door switch, and a switch lever is located in a full latch position. FIG. 25 is a rear view of the latch, door switch, and switch lever shown in FIG. 24. It is a side view similar to FIG. 24 when a latch is located in a switching position. FIG. 26 is a rear view similar to FIG. 25 when the latch is located at the switching position. It is a side view similar to FIG. 24 when a latch is located in a half latch position. It is a rear view similar to FIG. 25 when a latch is located in a half latch position. FIG. 25 is a side view similar to FIG. 24 when the latch is located at the unlatched position. FIG. 26 is a rear view similar to FIG. 25 when the latch is located at the unlatched position.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
A vehicle door 10 shown in FIG. 1 is a side door on the right side of the vehicle, and a front end portion of the vehicle door 10 is supported so as to be rotatable around a vertical rotation axis with respect to a vehicle body (not shown). The vehicle door 10 is rotatable in a horizontal direction with respect to the vehicle body between an open position that completely opens an opening formed on a side surface of the vehicle body and a closed position that closes the opening. The “front-rear direction” and “left-right direction (inside / outside direction)” relating to the vehicle door 10 in the following description are directions based on the case where the vehicle door 10 is located at the closed position.

  The vehicle door 10 includes a door main body portion 11 constituting a lower half portion thereof, and a door sash 12 provided on the upper half portion thereof. The door body 11 includes an outer panel (not shown) constituting the outer surface of the door body 11, an inner panel (not shown) fixed to the inner surface of the outer panel, an inner panel fixed to the inner surface of the inner panel, and the door body. And a resin trim 13 that constitutes the inner surface of the portion 11.

An outside handle 17 is rotatably supported on the outer panel, and an inside handle 18 is rotatably supported on the trim 13. The outside handle 17 and the inside handle 18 are rotatable between an initial position and a latch release position, and both are urged to rotate toward an initial position by an urging means (not shown).
Further, a lock knob 19 is provided at the upper end of the trim 13 so as to be slidable in the vertical direction. The lock knob 19 is slidable with respect to the trim 13 between an unlock position (the position shown in FIG. 1) and a lock position (not shown) positioned below the unlock position.

Inside the vehicle door 10, there is provided a door lock device 20 that is located between the outer panel and the inner panel and a part of which is exposed at the rear end surface of the vehicle door 10.
As shown in FIGS. 2 and 3, etc., the door lock device 20 is an integrated latch unit 25 and actuator unit 50.

The latch unit 25 has a latch housing 26 (housing) including a first housing 27 and a second housing 35.
On the rear surface of the first housing 27, a striker entry groove 28 extending from the left end surface (the vehicle inner end surface) of the first housing 27 to the right side is recessed. Further, a mounting recess 29 is provided on the rear surface of the first housing 27 so as to continue (communicate with) the striker entry groove 28 in a manner that crosses the striker entry groove 28. A through hole 30 that penetrates the first housing 27 in the front-rear direction is formed in the bottom surface of the mounting recess 29. As illustrated, the through hole 30 is a long hole extending in the vertical direction. Further, a latch-side waterproof wall 31 projects from the bottom surface and the inner peripheral surface of the mounting recess 29.
A striker entry groove 36 extending in the left-right direction is formed in the rear part and the left side part of the second housing 35.

On the first housing 27, a latch 40, a pole 45, and a lift lever 48 are rotatably supported.
The latch 40 is disposed in the mounting recess 29 and is supported so as to be rotatable around a rotation shaft provided on a support wall 29 a which is the bottom surface of the mounting recess 29. The latch 40 does not hold a striker (not shown) fixed to the vehicle body (does not hold the closed state of the vehicle door 10) and a full latch position that can hold the striker (holds the closed state of the vehicle door 10). Between the first housing 27 and the first housing 27. The latch 40 includes a first locking claw 41 and a second locking claw 42, and a striker receiving groove 43 is formed between the first locking claw 41 and the second locking claw 42. As shown in FIGS. 24 to 31, a first engagement surface 40 a and a second engagement surface 40 b are formed on the outer surface of the latch 40. The first engagement surface 40a and the second engagement surface 40b constitute a lever rotation amount adjustment mechanism 40c that adjusts the rotation amount of the switch lever 120 described later. The first engagement surface 40 a is formed on a part of the outer peripheral surface of the latch 40. On the other hand, the second engagement surface 40 b is formed on a part of the front surface of the latch 40.
The pole 45 is disposed in the mounting recess 29 below the latch 40. The pole 45 passes through the first housing 27 in the front-rear direction and is fixed to a rotation shaft 44 that can rotate relative to the first housing 27. Therefore, the pawl 45 is engaged with the latch 40 located at the full latch position together with the rotation shaft 44 to hold the latch 40 at the full latch position (the position shown in FIG. It can be rotated between engagement positions (positions in FIGS. 4 and 5).
Further, the latch 40 is always urged to rotate toward the unlatched position and the pawl 45 is always urged to rotate toward the engaging position by the urging force of the urging means.
Further, as shown in FIG. 6, a lift lever 48 facing the front surface of the first housing 27 is disposed in front of the first housing 27. The lift lever 48 is fixed to the front portion of the rotation shaft 44 that protrudes forward from the front surface of the first housing 27. That is, the lift lever 48 rotates together with the rotation shaft 44 and the pole 45.

When the latch 40 located at the unlatched position rotates to the full latch position against the urging force of the urging means while engaging the striker, the pawl 45 is located at the engaging position by the urging force of the urging means and is latched. Engage with. As a result, the latch mechanism having the latch 40 and the pawl 45 is in a “latched state” in which the latch 40 holds the striker.
On the other hand, when the pole 45 is rotated to the non-engagement position side against the urging force of the urging means, the latch 40 can be rotated to the unlatch position side. Therefore, the latch mechanism is in an “unlatched state” where the striker can be released.

  The latch unit 25 is completed by covering the first housing 27 supporting the latch 40, the pole 45, and the lift lever 48 with the second housing 35 from behind and fixing the first housing 27 and the second housing 35. (See FIG. 2, FIG. 3, etc.).

The actuator unit 50 includes an actuator housing 51 (housing) including a first housing 52 and a second housing 75.
The first housing 52 is an integrally molded product made of resin.
A latch unit connection portion 53 is formed at the rear portion of the first housing 52.
The first housing 52 includes a rotation shaft 54 that is positioned below the latch unit connection portion 53 and extends rearward. Furthermore, a plurality of rotating shafts 55, 56, 57, 58, 59 are provided on the surface of the first housing 52 that faces the second housing 75, and each axis extends toward the second housing 75 side. The rotation shaft 55 has a cylindrical shape with an open end surface.

Further, a switch-side waterproof wall 61 projects from the surface of the first housing 52 facing the second housing 75 toward the second housing 75 side. The switch-side waterproof wall 61 is integrally provided with a rear wall portion 62 extending substantially in the vertical direction and a bottom wall portion 63 extending substantially horizontally from the lower end of the rear wall portion 62 toward the front. As shown in FIG. 12, a notch 65 is formed in the bottom wall 63. The part located immediately after the notch part 65 of the bottom wall part 63 comprises the back facing part 64 extended toward the left-right direction.
A lever guide projection 68 (inner wall) projects from the surface of the first housing 52 facing the second housing 75 toward the second housing 75 side. As shown in the figure, the lever guide protrusion 68 has an arc shape centered on the axis of the rotation shaft 58.
Further, a lower waterproof wall 70 projects from the surface of the first housing 52 facing the second housing 75 toward the second housing 75 side. As shown in the drawing, the lower waterproof wall 70 is located in front of the lever guide protrusion 68. Further, the lower waterproof wall 70 has an arc shape centered on the axis of the rotation shaft 58 and substantially the same diameter as the lever guide protrusion 68.
Further, on the surface of the first housing 52 facing the second housing 75, a spring locking portion 72 located in the vicinity of the rotation shaft 58 is provided projecting toward the second housing 75 side.

The second housing 75 is an integrally molded product made of resin.
A latch unit connecting portion 76 is formed at the rear portion of the second housing 75.
A fitting projection 78 projects from the surface of the second housing 75 facing the first housing 52. Further, bearing portions 79, 80, 81, 82 are formed on the surface of the second housing 75 facing the first housing 52. The bearing portion 79 and the bearing portion 82 are concave portions formed in the second housing 75, and the bearing portion 80 and the bearing portion 81 have a cylindrical shape with open end faces.
Further, a lever guide projection 83 (inner wall) is provided on the surface of the second housing 75 facing the first housing 52 so as to project toward the first housing 52 side. As shown in the figure, the lever guide protrusion 83 has an arc shape centered on the axis of the bearing portion 81. As shown in FIGS. 11 and 13, the lever guide protrusion 83 is integrally provided with a wide portion 84 that forms the rear portion thereof, and a narrow portion 85 that forms the front portion and is narrower than the wide portion 84. Yes.
Further, on the surface of the second housing 75 facing the first housing 52, a switch-side waterproof wall 87 positioned directly above the lever guide projection 83 is provided so as to project toward the first housing 52 side. The switch-side waterproof wall 87 is integrally provided with a rear wall portion 88 extending substantially in the vertical direction and a bottom wall portion 89 extending substantially horizontally from the lower end of the rear wall portion 88 toward the front.

As shown in the drawing, a door switch 93 (a courtesy switch, a switch), which is an electrical component, is fixed to a surface of the first housing 52 facing the second housing 75.
The door switch 93 includes a main body portion 94 and a pressed convex portion 95 that protrudes downward from the lower end surface of the main body portion 94 and is rotatable relative to the main body portion 94. The pressed protrusion 95 can be rotated around a rotation axis in the left-right direction with respect to the main body 94. Specifically, it can rotate between the off position shown in FIGS. 11 to 13, 15, 18, and 19 and the on position shown in FIGS. Further, the pressed convex portion 95 is urged to move to the off position side by the urging means provided in the main body portion 94.
As shown in FIGS. 14 and 15, a connector 97 is fixed to the surface of the first housing 52 facing the second housing 75. A door switch terminal 98 for connecting the door switch 93 and the connector 97 is fixed to the surface of the first housing 52 facing the second housing 75. The connector 97 is connected to an ECU (not shown) via a cable (not shown). Further, the ECU is connected to an illumination device (not shown) provided on the inner surface (for example, the ceiling surface) of the vehicle.

  The open link 100 shown in FIGS. 14 and 15 can rotate between a locked position and an unlocked position. As will be described later, an outside open lever 117 is rotatably supported on the first housing 52 (the rotation shaft 54 thereof), and an open link is provided on a support shaft 118 protruding from the outside open lever 117. 100 is rotatably supported. Further, a biasing spring 101 is provided between the support shaft 118 and the open link 100. The urging spring 101 urges the open link 100 to rotate toward the unlock position.

As shown in FIGS. 14 and 15, the active lever 103 is rotatably supported on the rotation shaft 55 of the first housing 52.
The active lever 103 includes an unlock position (a position shown in FIGS. 14 and 15) that allows the open link 100 to be positioned at the unlock position, a lock position (not shown) that positions the open link 100 at the lock position, Between the two.
The active lever 103 and the lock knob 19 are linked by an operation wire (not shown). When the lock knob 19 is located at the lock position, the active lever 103 is located at the lock position, and as a result, the open link 100 is located at the lock position. On the other hand, when the lock knob 19 moves from the lock position to the unlock position, the active lever 103 rotates to the unlock position by the moving force of the lock knob 19, and the open link 100 moves to the unlock position.

  As shown in FIGS. 14 and 15, a locking control lever 105 is rotatably supported on the rotation shaft 59 of the first housing 52. An outside locking lever 109 is linked to a key cylinder (not shown) provided on the outer panel or the outside handle 17. Further, the key switch lever 111 is linked to the locking control lever 105 and the outside locking lever 109.

As shown in FIGS. 14 and 15, the electric motor 112 is fixed to the surface of the first housing 52 facing the second housing 75. A motor terminal 113 that connects the electric motor 112 and the connector 97 is fixed to a surface of the first housing 52 facing the second housing 75. The electric motor 112 operates by operating a remote controller that is one of the locking / unlocking operation members.
A worm gear 114 is fixed to the output shaft of the electric motor 112.
A disc-shaped wheel gear (not shown) is rotatably supported on the rotation shaft 57 of the first housing 52. The gear teeth formed on the outer peripheral surface of the wheel gear mesh with the worm gear 114. Further, the wheel gear is linked to the active lever 103.
When the electric motor 112 is rotated by a signal from the ECU, the rotational force of the electric motor 112 is transmitted to the wheel gear via the worm gear 114, and the wheel gear is rotated. Then, the active lever 103 linked with the wheel gear rotates between the lock position and the unlock position.

An inside open lever 116 is rotatably supported on the rotation shaft 56 of the first housing 52.
The inside open lever 116 and the inside handle 18 are linked by an operation wire.
When the inside handle 18 is located at the initial position, the inside open lever 116 is located at the non-pressing position. At this time, the inside open lever 116 does not exert any force on the open link 100.
On the other hand, when the inside handle 18 moves from the initial position to the latch release position, the inside open lever 116 moves to the pressing position. If the inside open lever 116 moves to the pressing position when the open link 100 is located at the unlock position, the inside open lever 116 presses the open link 100, so that the open link 100 rotates in a predetermined direction.

Further, an outside open lever 117 is rotatably supported on the rotation shaft 54.
The outside open lever 117 is connected to the outside handle 17 via a rod.
When the outside handle 17 is located at the initial position, the outside open lever 117 is located at the non-pressing position. At this time, the outside open lever 117 does not exert any force on the open link 100.
On the other hand, when the outside handle 17 moves from the initial position to the latch release position, the outside open lever 117 moves to the pressing position. If the outside open lever 117 moves to the pressing position when the open link 100 is located at the unlock position, the outside open lever 117 presses the open link 100, so that the open link 100 rotates in the predetermined direction.

A switch lever 120 is rotatably supported on a rotation shaft 58 (lever shaft) of the first housing 52.
The switch lever 120 has a cylindrical boss 121 that is rotatably attached to the rotation shaft 58. Further, the switch lever 120 has a first engagement arm 122 extending from the boss portion 121 in the radial direction of the boss portion 121.
The distal end portion of the first engagement arm 122 is configured by an arm distal end portion 123 having a substantially spherical shape. Further, on the left side surface of the first engagement arm 122, a first waterproof wall 124 (hole blocking portion) having an arc shape centering on the axis of the boss portion 121 is projected. Further, on the left side surface of the first engagement arm 122, a spring locking portion 125 is provided so as to be located closer to the boss portion 121 than the first waterproof wall 124.
As shown in FIGS. 11, 12, and 23, the second engagement arm 127 is counterclockwise (forward) from the first engagement arm 122 from the left side surface of the intermediate portion of the first engagement arm 122. The boss portion 121 extends in the radial direction in a positioned manner. That is, the second engagement arm 127 is offset to the left with respect to the first engagement arm 122. Furthermore, a second waterproof wall 128 (hole blocking portion) that is formed in an arc shape centering on the axis of the boss 121 and located on the outer peripheral side of the first waterproof wall 124 protrudes from the distal end portion of the second engagement arm 127. It is installed.

When the boss 121 of the switch lever 120 is attached to the rotation shaft 58, the first engagement arm 122 is positioned on the left side of the lever guide projection 68 and the lower waterproof wall 70 as shown in FIG.
Further, a lever spring 130 is attached to the rotation shaft 58. The lever spring 130 includes a pair of locking pieces 131 and 132. As shown in FIGS. 18 and 21, one locking piece 131 is locked to the spring locking portion 125 of the switch lever 120. The other locking piece 132 is locked to the spring locking portion 72 of the first housing 52. When the lever spring 130 is locked to the first housing 52 and the switch lever 120 (spring locking portion 125) in this way, the lever spring 130 is in an elastically deformed state. The switch lever 120 is always urged to rotate clockwise in FIGS. 18 and 21 by the urging force generated by the lever spring 130.

The actuator unit 50 is completed by fixing the first housing 52 and the outer peripheral edge of the second housing 75 with the fixing means in a state where the opposing portions are in contact with each other.
When the actuator unit 50 is completed, the fitting protrusion 78 of the second housing 75 is fitted to the turning shaft 55 of the first housing 52, and the turning shafts 56, 57, 58, 59 of the first housing 52 are further fitted. Is fitted to the bearing portions 79, 80, 81, 82 of the second housing 75.
Further, as shown in FIGS. 16 and 23, the lever guide protrusion 68 and the lower waterproof wall 70 of the first housing 52 and the wide portion 84 of the lever guide protrusion 83 of the second housing 75 are connected to the switch lever movement allowance groove 86 ( The first engagement arm 122 of the switch lever 120 is rotatably positioned in the switch lever movement allowance groove 86 while forming a gap.
Furthermore, the rear wall portion 62 of the switch-side waterproof wall 61 of the first housing 52 and the rear wall portion 88 of the switch-side waterproof wall 87 of the second housing 75 are in contact with each other, and as shown in FIG. The bottom wall portion 63 of the wall 61 and the bottom wall portion 89 of the switch-side waterproof wall 87 are in contact with each other. As shown in FIG. 17, the bottom wall 63 (rear facing portion 64) is located immediately after the pressed convex portion 95 of the door switch 93.
Further, as shown in FIGS. 18 and 23, the second engagement arm 127 of the switch lever 120 is located on the right side of the narrow width portion 85 of the lever guide projection 83 and immediately before the wide width portion 84.
18, 21, and 23, the first waterproof wall 124 of the switch lever 120 is located on the inner peripheral side of the lever guide protrusion 68, the lower waterproof wall 70, and the lever guide protrusion 83, and the switch lever The second waterproof wall 128 of 120 is located on the outer peripheral side of the lever guide protrusion 68, the lower waterproof wall 70, and the lever guide protrusion 83.
Further, an opening surrounded by the latch unit connecting portion 53 of the first housing 52 and the latch unit connecting portion 76 of the second housing 75 is formed on the rear surface of the actuator housing 51 (see FIGS. 3 and 9). And the front-end | tip part (arm front-end | tip part 123) of the 1st engagement arm 122 of the switch lever 120 is located in this opening part.

  The active lever 103, the inside open lever 116, the outside open lever 117, the electric motor 112, the worm gear 122, and the wheel gear of the actuator unit 50 are components of the lock mechanism.

When the latch unit 25 is attached to the opening surrounded by the latch unit connection part 53 of the first housing 52 and the latch unit connection part 76 of the second housing 75, and the latch unit 25 and the actuator unit 50 are fixed to each other, the door The locking device 20 is completed.
When the door lock device 20 is completed, the front end (upper end) of the open link 100 of the actuator unit 50 is opened in the opening surrounded by the latch unit connection 53 of the first housing 52 and the latch unit connection 76 of the second housing 75. Part) faces the lift lever 48 of the latch unit 25.
Further, as shown in FIGS. 18, 21, and 24 to 31, the distal end portion of the first engagement arm 122 of the switch lever 120 from the first waterproof wall 124 penetrates the through hole 30 of the latch unit 25. Further, the arm tip 123 comes into contact with the latch 40 in the latch unit 25. Therefore, the rotation of the switch lever 120 biased by the lever spring 130 toward the wide portion 84 is restricted by the latch 40.
Further, as is apparent from FIGS. 14, 15, 18, and 21, the door switch 93, the connector 97, the door switch terminal 98, and the motor terminal 113, which are electrical components, include the latch 40 and the pole with the support wall 29a interposed therebetween. 45 located on the opposite side (front) of 45 and above the through hole 30 of the latch unit 25.

When the latch 40 is located at the full latch position P1 shown in FIGS. 24 and 25 and the pawl 45 is located at the engagement position, the latch 40 is positioned at the full latch position P1 by the engagement with the pawl 45. Therefore, when the vehicle door 10 is located at the closed position, the vehicle door 10 is held at this closed position.
When the latch 40 is at the full latch position P1, the horizontal distance in the front-rear direction of the first engagement arm 122 of the switch lever 120 (the front-rear direction distance from the pivot shaft 58 to the arm tip 123 on the horizontal plane) is La. Become. The horizontal distance La is longer than the front-rear direction interval L between the rotation shaft 58 and the second engagement surface 40b which is the side surface (the front surface of the latch 40) opposite to the switch lever 120 of both side surfaces of the latch 40. Therefore, the arm tip 123 of the switch lever 120 abuts on the first engagement surface 40 a of the latch 40 from above by the elastic biasing force of the lever spring 130. In addition, the second waterproof wall 128 of the second engagement arm 127 of the switch lever 120 is separated rearward from the pressed convex portion 95 of the door switch 93. Accordingly, the second waterproof wall 128 does not press the pressed convex portion 95 of the door switch 93 from the off position to the on position. Therefore, when the latch 40 is at the full latch position P1, the operating state of the door switch 93 is turned off.

For example, by positioning the lock knob 19 at the unlock position, the open link 100 is positioned at the unlock position. In this state, when the outside handle 17 or the inside handle 18 is moved from the initial position to the latch release position, the inside open lever 116 or the outside open lever 117 is moved from the non-pressing position to the pressing position, and the inside open lever 116 or out The side open lever 117 presses the open link 100 in the predetermined direction. Then, the open link 100 approaches the lift lever 48 side and rotates the lift lever 48, so that the pole 45 located at the engagement position moves to the non-engagement position. As a result, the engagement between the pawl 45 and the latch 40 is released, so that the latch 40 can be rotated to the unlatched position.
Therefore, when the vehicle door 10 located in the closed position in this state is opened, the latch 40 is moved from the full latch position P1 to the unlatched position (also referred to as “latch release position” or “latch open position”) P4 (FIGS. 30 and 31). ). At this time, the switch lever 120 pushes the rotary shaft 58 against the elastic biasing force of the lever spring 130 because the arm tip 123 of the first engagement arm 122 is pushed up by the first engagement surface 40a of the latch 40. It rotates counterclockwise in FIG. 26 about the center. As shown in FIGS. 26 and 27, when the latch 40 is rotated to the switching position (switch-on position) P2 before the unlatch position P4, the second waterproof wall 128 of the switch lever 120 is in the off position until then. Since the pressed convex portion 95 of the door switch 93 that has been pressed is pressed to the on position, the operating state of the door switch 93 is turned on. As a result, the lighting device connected to the ECU is turned on.
At this time, the horizontal distance Lb of the switch lever 120 is shorter than the horizontal distance La but exceeds the interval L. Therefore, the arm tip 123 of the first engagement arm 122 slides forward with respect to the first engagement surface 40 a of the latch 40.

When the latch 40 further rotates from the switching position P2 toward the unlatch position P4, the latch 40 reaches the half latch position P3 shown in FIGS. Then, the arm tip 123 of the first engagement arm 122 of the switch lever 120 is pushed up by the first engagement surface 40 a of the latch 40, and the switch lever 120 is rotated against the elastic biasing force of the lever spring 130. Is rotated counterclockwise in FIG. As a result, the second waterproof wall 128 of the switch lever 120 is in sliding contact with the pressed convex portion 95 of the door switch 93, but the door switch 93 is maintained in the ON state.
At this time, the horizontal distance Lc of the switch lever 120 is slightly longer than the interval L. Accordingly, the arm tip 123 of the first engagement arm 122 slides on the first engagement surface 40a of the latch 40, and eventually the corner portion 40d (the first engagement surface 40a and the second engagement surface 40b). Move to the boundary.

As shown in FIGS. 30 and 31, when the latch 40 further rotates from the half latch position P3 to the unlatch position P4, the horizontal distance Ld of the switch lever 120 becomes slightly shorter than the horizontal distance Lc (generally the same as the interval L). Length). In this case, the engagement point between the arm tip 123 of the first engagement arm 122 of the switch lever 120 and the latch 40 is switched from the first engagement surface 40a to the second engagement surface 40b, and the arm tip 123 is in the first position. It slides on the two engaging surfaces 40b. That is, the rotation position of the switch lever 120 itself hardly changes, and only the relative rotation position of the latch 40 with respect to the switch lever 120 changes. Therefore, the operating state of the door switch 93 is maintained in the on state.
Thus, when the latch 40 is located in the rotation region from the switching position P2 to the unlatching position P4, the switch lever 120 rotates in conjunction with the latch 40 so as to maintain the operation state of the door switch 93. To do.
Further, while the arm tip 123 of the first engagement arm 122 slides on the second engagement surface 40b, the elastic biasing force of the lever spring 130 that acts on the latch 40 via the switch lever 120 does not increase. Therefore, it can suppress that the rotation operation | movement of the latch 40 becomes unsmooth.

As described above, in the present embodiment, when the latch 40 is rotated from the full latch position P1 to the intermediate position before the unlatch position P4 (the switching position P2 or the half latch position P3), the arm of the first engagement arm 122 of the switch lever 120 is provided. The engagement region on the latch 40 of the front end portion 123 changes from the first engagement surface 40a to the second engagement surface 40b.
For this reason, compared with the 1st rotation state which is the rotation area | region from the full latch position P1 of the latch 40 to the switching position P2, the 2nd area which is the rotation area | region from the switching position P2 of the latch 40 to the unlatching position P4. The ratio of the rotation amount of the switch lever 120 to the rotation amount of the latch 40 is lower in the rotation state.

  The first engagement surface 40a rotates the latch 40 when the arm tip 123 of the first engagement arm 122 slides against the elastic biasing force of the lever spring 130 in the first rotation state of the latch 40. The latch 40 is provided so that the ratio of the amount of rotation of the switch lever 120 to the amount of movement is constant. On the other hand, the second engagement surface 40b is latched when the arm tip 123 of the first engagement arm 122 slides against the elastic biasing force of the lever spring 130 in the second rotation state of the latch 40. The latch 40 is provided so that the ratio of the rotation amount of the switch lever 120 to the rotation amount of 40 is lower than that in the first rotation state.

Therefore, when the latch 40 shifts from the first rotation state to the second rotation state, the rotation amount of the switch lever 120 that rotates in conjunction with the latch 40 is shifted to the second rotation state. Can lower than before. Therefore, after the latch 40 reaches the switching position P2 from the full latch position P1 and the operation state of the door switch 93 changes from the off state to the on state, the switch lever can be operated even if the latch 40 further rotates toward the unlatch position P4. It is possible to prevent the 120 from rotating more than necessary.
In this case, after the operating state of the door switch 93 is turned on, there is no need to rotate the switch lever 120 by the same amount of rotation as before turning on. Therefore, the structure for rotating the switch lever 120 can be prevented from increasing in size. As a result, the vehicle door lock device 20 can be reduced in size.
That is, when the structure in which the rotation amount of the switch lever 120 with respect to the rotation amount of the latch 40 is always constant while the latch 40 rotates from the full latch position P1 to the unlatching position P4, the switch lever from the switching position P2 to the unlatching position P4 is used. 120 will rotate unnecessarily greatly. On the other hand, in this embodiment, the structure which rotates the switch lever 120 largely from the switching position P2 to the unlatching position P4 is not required.

  Further, according to the present embodiment, since the first engagement surface 40a and the second engagement surface 40b provided in the latch 40 which is an existing component are used without increasing the number of components, the door lock device 20 Product costs can be prevented from increasing. In particular, the surface used as the second engagement surface 40b among the portions of the latch 40 is in a positional relationship facing the arm tip 123 of the first engagement arm 122, and the latch outer peripheral cam surface (first engagement surface). This contributes to preventing the outer shape of the latch 40 from becoming larger than when the outer peripheral surface continuous from the surface 40a is used as the second engagement surface 40b.

  In the second rotation state of the latch 40, it is preferable to adopt a configuration in which the switch lever 120 is slightly rotated or a configuration in which the rotation amount of the switch lever 120 is zero (a state in which the switch lever 120 does not rotate at all). In the case of the present embodiment, it is necessary to regulate the rotation of the switch lever 120 with respect to the latch 40 that rotates toward the unlatch position P4 at the position where the operation state of the door switch 93 is turned on. However, since it is not necessary to use a new member such as a stopper as a restricting means for restricting the rotation of the switch lever 120, an increase in the number of parts can be prevented.

Furthermore, the striker entry groove 28 and the striker entry groove 36 are formed in the latch unit 25. Therefore, for example, when the user performs a car wash when the vehicle door 10 is in an open state, a liquid (for example, water; hereinafter referred to as “water”) used at the time of car wash is the striker entry groove 28 and the striker entry groove 36. May enter the latch unit 25 via the through hole 30 and may further enter the actuator unit 50 via the through hole 30. Inside the actuator unit 50, a door switch 93, which is an electrical component, is provided. If water adheres to the door switch 93, the door switch 93 may malfunction. Therefore, it is necessary to suppress water that has entered the interior of the latch unit 25 from adhering to the door switch 93.
However, in the present embodiment, as will be described below, the possibility of water adhering to the door switch 93 is extremely low.

When the vehicle door 10 is in the open state, the latch 40 is positioned at the unlatched position by the urging force of the urging means. As shown in FIGS. 4, 5, and 6, the latch 40 overlaps substantially the entire through-hole 30 when viewed in the thickness direction of the support wall 29 a (the front-rear direction when the vehicle door 10 is closed). . That is, the second engagement claw 42 of the latch 40 overlaps with the whole except for the upper end portion of the through hole 30. Further, as is clear from FIGS. 18 and 21, the first waterproof wall 124 and the first waterproof wall 124 of the switch lever 120 and the first waterproof wall 124 when the latch 40 and the switch lever 120 are located in any position when viewed in the thickness direction of the support wall 29a. The two waterproof walls 128 overlap at least a part of the through hole 30.
Moreover, when the latch 40 is positioned between the switching position P2 and the unlatching position P4, the second waterproof wall 128 of the switch lever 120 contacts the pressed convex portion 95 of the door switch 93 from below. In other words, the second waterproof wall 128 covers the pressed convex portion 95 from below.
Further, as shown in FIGS. 9, 10, 16, 18, 21, and 23, the first waterproof wall 124 of the switch lever 120 is located within the lever guide protrusion 68, the lower waterproof wall 70, and the lever guide protrusion 83. The second waterproof wall 128 of the switch lever 120 is positioned on the outer peripheral side of the lever guide protrusion 68, the lower waterproof wall 70 and the lever guide protrusion 83. In other words, when viewed in the thickness direction (radial direction) of the lever guide protrusion 68, the lower waterproof wall 70, and the lever guide protrusion 83, the first waterproof wall 124 and the second waterproof wall 128 are formed in the switch lever movement allowance groove 86. It overlaps with a part. That is, in order for water that has passed through the through hole 30 and entered the actuator unit 50 to go to the door switch 93, the switch lever movement allowance passes through the gap between the first waterproof wall 124 and the switch lever movement allowance groove 86. After passing through the groove 86 upward, it is necessary to further pass through the gap between the switch lever movement allowance groove 86 and the second waterproof wall 128 toward the door switch 93 side. Therefore, the actuator unit 50 has a structure in which water hardly passes through the switch lever movement allowance groove 86 as compared with the case where the switch lever 120 does not include the first waterproof wall 124 and the second waterproof wall 128.
Therefore, the latch 40 and the switch lever 120 positioned at the unlatched position can suppress the water that has entered the latch unit 25 from passing through the through hole 30 toward the door switch 93 in the actuator unit 50.

Further, as apparent from FIGS. 3, 18, and 21, the lever guide protrusion 68 of the first housing 52 and the wide waterproof portion 84 of the lower waterproof wall 70 and the lever guide protrusion 83 of the second housing 75 include the latch unit 25. Between the through hole 30 and the door switch 93.
Therefore, even if water passes through the through hole 30 of the support wall 29a and goes to the door switch 93 side, the lever guide protrusion 68, the lower waterproof wall 70, and the wide portion 84 cause the water to move to the door switch 93 side. Can be effectively suppressed.

Further, as shown in FIG. 17, the bottom wall portion 63 (rear facing portion 64) of the switch side waterproof wall 61 and the bottom wall portion 89 of the switch side waterproof wall 87 are in contact, and the rear facing portion 64 is further covered by the door switch 93. It is located immediately after the pressing projection 95.
Therefore, even if water passes through the through hole 30 of the support wall 29a and goes to the door switch 93 side, the switch side waterproof wall 61 (bottom wall portion 63) and the switch side waterproof wall 87 (bottom wall portion 89). ) Can effectively prevent water from adhering to the door switch 93.

Further, when the vehicle door 10 is in the open state (when the latch 40 is in the unlatched position), as shown in FIG. 7, the upper portion of the mounting recess 29 of the first housing 27 (positioned above the striker entry groove 28). Most of the communication hole 29b (the opening for connecting the upper portion of the mounting recess 29 and the striker entry groove 28), which is the end of the striker entry groove 28 side, is closed by the latch 40. In other words, the gap 29b1 is formed only at the end of the communication hole 29b. Therefore, when the vehicle is washed, there is a possibility that water may go through the gap 29b1 toward the through hole 30 located above the striker entry grooves 28 and 36.
However, the through hole 30 is located above the striker entry grooves 28 and 36 and the gap 29b1. Further, as shown in FIG. 5, a latch side waterproof wall 31 is located between the gap 29 b 1 and the through hole 30.
Therefore, even if water passes through the gap 29b1 and enters the mounting recess 29, the latch-side waterproof wall 31 can effectively suppress the water from moving toward the through hole 30.

  Further, as is apparent from FIGS. 18 and 21, the door switch 93 is located above the through hole 30 of the latch unit 25. Therefore, even if water enters the actuator unit 50 from the through hole 30, there is little possibility that the water will go to the door switch 93 side.

As mentioned above, although embodiment of this invention was described, this invention should not be limited to the said embodiment.
For example, the door lock device 20 may be provided on the back door.
Moreover, the rotation direction with respect to the vehicle body of the door to which the door lock device 20 is applied may be the vertical direction as well as the horizontal direction.

  A single housing may be formed by integrally molding the latch housing 26 and the actuator housing 51.

  When the latch 40 is located at the full latch position, the second waterproof wall 128 presses the pressed convex portion 95 of the door switch 93 to turn on the door switch 93, and the latch 40 is in the switching position P2 and the unlatched position. The door switch 93 may be turned off when the second waterproof wall 128 is separated from the pressed convex portion 95 of the door switch 93 when positioned between P4 and P4.

  An electrical component other than the lighting device may be connected to the ECU, and the electrical component may be switched on / off in conjunction with the on / off of the door switch 93.

When the latch 40 is located at the unlatched position, the entire through hole 30 and the latch 40 may overlap in the front-rear direction.
Further, the entire through hole 30, the first waterproof wall (hole closed side portion) 124, and the second waterproof wall (hole closed side portion) 128 may overlap in the front-rear direction.

  The door switch (switch) 93 may not be a type that is pressed by the switch lever 120. For example, the door switch 93 is turned off (or turned on) when the distance from the switch lever 120 is greater than a predetermined distance, and turned on (or turned on) when the distance from the door switch 93 is less than or equal to the predetermined distance. It is good also as a non-contact-type switch which switches to an OFF state.

DESCRIPTION OF SYMBOLS 20 ... Door lock device, 25 ... Latch unit, 26 ... Latch housing (housing), 28 ... Striker entrance groove, 29a ... Support wall, 29b ... Communication hole, 29b1 ...・ Gap, 30 ... Through hole, 31 ... Latch waterproof wall, 36 ... Strike entry groove, 40 ... Latch, 40a ... First engagement surface, 40b ... Second engagement 50 ... Actuator unit, 61 ... Switch-side waterproof wall, 64 ... Back facing part, 65 ... Notch part, 68 ... Lever guide projection (inner wall) ), 70... Lower waterproof wall, 83... Lever guide protrusion (inner wall), 84... Wide portion, 85... Narrow portion, 86. ..Waterproof wall on switch side, 88 ... rear wall, 89 ... bottom wall 93 ... Door switch (switch), 94 ... Main body, 95 ... Pressed convex part, 100 ... Open link, 103 ... Active lever, 112 ... Electric motor, 120 ... Switch lever, 122... First engagement arm, 123... Arm tip, 124... First waterproof wall (hole closed side), 125. A second engagement arm, 128... A second waterproof wall (hole closed side), 130.

Claims (8)

A housing provided on the vehicle door;
It is provided in the housing so as to be rotatable between a full latch position capable of holding the vehicle door in a closed state by engaging with a striker attached to a vehicle body and an unlatched position for releasing the striker, A latch urged to move to the unlatched position;
A support wall provided in the housing and rotatably supporting the latch and having a through hole;
A switch for detecting a rotation position of the latch, which is located on the opposite side of the latch with the support wall interposed in the housing;
A switch lever that links the latch and the switch while penetrating the through-hole so as to be relatively movable, and switches the switch between an on state and an off state in conjunction with a rotation position change of the latch;
With
The vehicle door lock device, wherein the latch overlaps at least a part of the through hole when viewed in the thickness direction of the support wall when the latch is in the unlatched position. A housing provided on the vehicle door;
A latch provided in the housing so as to be rotatable between a full latch position where the vehicle door can be held in a closed state by engaging with a striker attached to a vehicle body and an unlatched position where the striker is released. When,
A support wall provided in the housing and rotatably supporting the latch and having a through hole;
A switch for detecting a rotation position of the latch, which is located on the opposite side of the latch with the support wall interposed in the housing;
A switch lever that links the latch and the switch while penetrating the through-hole so as to be relatively movable, and switches the switch between an on state and an off state in conjunction with a rotation position change of the latch;
With
The vehicle door lock device, wherein the switch lever includes a hole closing portion that overlaps at least a part of the through hole when viewed in the thickness direction of the support wall. The vehicle door lock device according to claim 2,
The vehicle door lock device, wherein the hole closing portion positioned between the support wall and the switch presses the switch. In the vehicle door lock device according to claim 2 or 3,
The housing includes an inner wall having a switch lever movement allowance groove located between the through hole and the switch and in which the switch lever is arranged to be relatively movable;
The vehicle door lock device in which the hole closing portion overlaps at least a part of the switch lever movement allowing groove when viewed in the thickness direction of the inner wall. In the vehicle door lock device according to any one of claims 1 to 4,
The vehicle door lock device, wherein the housing includes a switch-side waterproof wall positioned between the through hole and the switch. The vehicle door lock device according to any one of claims 1 to 5,
The housing has a striker entry groove into which the striker enters when the vehicle door is closed, and a communication hole that communicates the striker entry groove with the internal space of the housing;
Opening the part of the communication hole when the latch is located at the unlatched position;
The vehicle door lock device, wherein the housing includes a latch-side waterproof wall positioned between the part of the communication hole and the through hole. The vehicle door lock device according to any one of claims 1 to 6,
The housing has a striker entry groove into which the striker enters when the vehicle door is closed and communicates with an internal space of the housing;
A vehicle door lock device, wherein the switch is provided in a portion of the internal space of the housing located above the striker entry groove. The vehicle door lock device according to any one of claims 1 to 7,
The housing has a striker entry groove into which the striker enters when the vehicle door is closed and communicates with an internal space of the housing;
The vehicle door lock device, wherein the through hole is positioned above the striker entry groove.

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