JP4892738B2 - Door lock device - Google Patents

Description

  The present invention relates to a latch mechanism that restricts movement of the door in the opening direction when the door is disposed at the closed position with respect to the vehicle body, and a release position and a non-release position of the latch mechanism. Displacement to two different positions, while moving to a predetermined release direction in the release position, and an open lever that releases the latch state of the latch mechanism and three different positions depending on the operation of the inside door handle An inside door handle lever, a lock mechanism that is interposed between the inside door handle lever and the latch mechanism, and displaces the open lever to the release position and the non-release position according to the operation of the inside door handle lever, and the inside door handle lever Between the open lever and the lock mechanism to switch between the transmission state and the non-transmission state Capable relates door lock device and a structure was child lock mechanism.

  Some door lock devices applied to vehicles are provided with a so-called one-motion or double-action mechanism. In these mechanisms, for example, the lock mechanism in the locked state is switched to the unlocked state by opening the inside door handle without operating the lock operating member such as the sill knob. It is extremely effective in facilitating the operation. Specifically, in a door lock device provided with a one-motion mechanism, even if the lock mechanism is in a locked state, if the inside door handle is operated to open the door, the lock mechanism is unlocked, and then continues. The latch mechanism is released (see, for example, Patent Document 1). On the other hand, in a door lock device equipped with a double action mechanism, when the lock mechanism is in the locked state, it is unlocked if the inside door handle is once opened, and is latched by opening the inside door handle again. The mechanism will be released.

JP 2005-188130 A

  By the way, when the above-described one-motion mechanism or double-action mechanism is applied to a door lock device, the anti-theft property may be impaired. That is, even if the lock mechanism is switched to the locked state, if the inside door handle is operated once or twice, the locked state is switched to the unlocked state and the latch mechanism is released. If someone with a window breaks the window glass and opens the inside door handle, they will be allowed to enter the room. Therefore, it is difficult to apply a mechanism for facilitating the unlocking operation, such as a one-motion mechanism or a double action mechanism, in order to ensure the vehicle anti-theft property in the door lock device described above.

  In view of the above circumstances, an object of the present invention is to provide a door lock device capable of improving operability while ensuring the anti-theft property of a vehicle.

  In order to achieve the above object, the invention according to claim 1 is a latch mechanism that restricts the movement of the door in the opening direction when the door is disposed at the closed position with respect to the vehicle body. An open lever for releasing the latched state of the latch mechanism when it moves in a predetermined release direction while being displaced at two different positions of the release position and the non-release position with respect to the latch mechanism; An inside door handle lever that is displaced to three different positions according to the operation of the door handle, and is interposed between the inside door handle lever and the latch mechanism, and the open lever is released to the release position and not released according to the operation of the inside door handle. Between the door mechanism lever, the open lever and the lock mechanism. And a child lock mechanism configured to be switchable between a transmission state and a non-transmission state. When the child lock mechanism is in the transmission state, the inside door handle lever is disposed at the first position by operating the inside door handle. In this case, the open lever is arranged at the non-released position via the lock mechanism, and when the inside door handle lever is moved from the first position to the second position by the operation of the inside door handle, the open lever is set via the lock mechanism. When the inside door handle lever is moved to the third position by operating the inside door handle, the open lever is moved in the releasing direction, while in the non-transmitting state, the inside door handle is operated by operating the inside door handle. Inside door handle lever is first from second position If the inside door handle lever is moved from the first position to the second position by operating the inside door handle, the open lever is not released. The position is maintained, and the power to the open lever is not transmitted when the inside door handle lever is moved to the third position by operating the inside door handle.

  A door lock device according to a second aspect of the present invention is the door lock device according to the first aspect, wherein the lock mechanism includes a lock lever that swings about the axis of the lock lever shaft and a drive source, and drives the drive source. When the open lever is moved from the release position to the non-release position by swinging the lock lever, the inside door handle lever is disposed from the second position to the first position, and the drive source is driven. When the open lever is moved from the non-release position to the release position by swinging the lock lever, the lock lever and the inside door handle lever are arranged so that the inside door handle lever is arranged from the first position to the second position. It is characterized by linking.

  When the door lock device according to the present invention is in the transmission state, when the inside door handle lever is arranged at the first position by the operation of the inside door handle, the open lever is arranged at the non-release position via the lock mechanism, When the inside door handle lever is moved from the first position to the second position by the operation of the inside door handle, the open lever is arranged at the release position via the lock mechanism, and the inside door handle lever is moved to the first position by the operation of the inside door handle. When moved to the 3rd position, the open lever is moved in the release direction, while when in the non-transmitting state, when the inside door handle lever is moved from the second position to the first position by the operation of the inside door handle, it is locked. Place the open lever in the non-release position via the mechanism When the inside door handle lever is moved from the first position to the second position by operating the side door handle, the open lever is maintained at the non-released position, and the inside door handle lever is moved to the third position by operating the inside door handle. The child lock mechanism is configured so that the power to the open lever when transmitted is not transmitted. Therefore, if the open lever is placed in the non-release position by operating the inside door handle and the child lock mechanism is switched to the non-transmitting state, even if the inside door handle is operated after the window glass is broken, the door Can be prevented from opening. Thereby, the anti-theft property of the vehicle can be remarkably improved. In addition, if the child lock mechanism is switched to the transmission state, the operation of the inside door handle is effective even if the open lever is placed in the non-released position. The latch mechanism in the latched state can be released by operating the inside door handle. Therefore, operability can be remarkably improved.

  Furthermore, if the inside door handle lever and the inside door handle are directly linked by a linkage member such as a wire or a link, the attitude of the inside door handle can be changed according to the position of the inside door handle lever. If comprised in this way, it will become possible to discriminate | determine which state an open lever is based on the attitude | position of an inside door handle.

  Hereinafter, preferred embodiments of a door lock device according to the present invention will be described in detail with reference to the accompanying drawings as appropriate.

  1 and 2 show a door lock device according to an embodiment of the present invention. The door lock device 1 exemplified here is provided on a door D of a front hinge disposed on the right side of the rear seat in a vehicle body B of a four-wheeled vehicle, for example, as shown in FIGS. As shown in FIG. 2, a latch mechanism L is provided inside a latch case 11 attached to the main body case 10.

  The latch mechanism L is for meshing and holding the striker S provided in the vehicle main body B shown in FIGS. 3 and 5, and includes a latch 2 and a ratchet 3 as shown in FIGS. 1 and 7.

  As shown in FIG. 1, the latch 2 is positioned above the striker entry groove 11 a formed in the latch case 11 via a latch shaft 2 x extending substantially horizontally along the front-rear direction of the vehicle body B. It is provided in a flat plate shape in a rotatable manner. Although not clearly shown in the figure, a latch spring is provided between the latch 2 and the latch case 11 around the latch shaft 2x to urge the latch 2 in the clockwise direction in FIG. .

  The latch 2 is urged by the latch spring, but by contacting the first latch stopper (not shown) provided in the latch case 11, the clockwise rotation is restricted and the initial position is set. . In other words, the state where the latch 2 is in contact with the first latch stopper is the position rotated most clockwise. A second latch stopper 25 is provided in the vicinity of the latch shaft 2x. When the latch 2 is rotated counterclockwise against the urging force of the latch spring, the second latch stopper 25 abuts on the latch 2. As a result, rotation in the counterclockwise direction is restricted. Such a latch 2 is provided with a meshing groove 20, a hook portion 21, and a locking portion 22.

  The engagement groove 20 is formed from the outer peripheral surface of the latch 2 toward the latch shaft 2x, and is formed to have a width that can accommodate the striker S.

  As shown in FIG. 7C, the hook portion 21 is a portion located on the indoor side of the engagement groove 20 when the engagement groove 20 is opened downward. The hook portion 21 stops at a position crossing the striker entry groove 11a of the latch case 11 when the latch 2 is most rotated counterclockwise, while the latch 2 is rotated clockwise as shown in FIG. It is configured to stop at a position where the striker intrusion groove 11a is opened when it is most rotated.

  As shown in FIG. 7C, the locking portion 22 is a portion located on the outdoor side of the engagement groove 20 when the engagement groove 20 is opened downward. As shown in FIG. 7A, when the latch 2 is rotated most clockwise, the locking portion 22 traverses the striker intrusion groove 11a and faces toward the back (outdoor) of the striker intrusion groove 11a. It is configured to stop in a state of gradually inclining upward.

  As shown in FIG. 1, the ratchet 3 extends substantially horizontally along the front-rear direction of the vehicle body B at a position below the striker entry groove 11 a of the latch case 11 and on the indoor side of the latch shaft 2 x. It is provided in a flat plate shape so as to be rotatable through the ratchet shaft 3x. Although not shown in the figure, a ratchet spring is provided between the ratchet 3 and the latch case 11 in FIG. 7 to constantly bias the ratchet 3 counterclockwise around the ratchet shaft 3x. is there. The ratchet 3 is biased to rotate counterclockwise in FIG. 7-1 around the ratchet shaft 3x by the biasing force of the ratchet spring, but in FIGS. 7-2 and 7-3, As shown, by contacting the ratchet stopper 35 provided on the latch case 11, the counterclockwise rotation is restricted and the initial position is set. Such a ratchet 3 is provided with an engaging portion 30 and an action portion 31.

  The engaging portion 30 is a portion extending radially outward from the ratchet shaft 3x toward the outdoor side in a state where the ratchet 3 is disposed at the initial position, and its protruding end surface by rotating around the ratchet shaft 3x. It is possible to engage with the hook portion 21 and the locking portion 22 of the latch 2 described above via the.

  The action portion 31 is a portion extending radially outward from the ratchet shaft 3x toward the indoor side in a state where the ratchet 3 is disposed at the initial position.

  The ratchet 3 is provided with a ratchet lever 38 shown in FIG. 2 that rotates together with the ratchet 3 around the axis of the ratchet shaft 3x via a connecting pin 36 shown in FIG. is there. The ratchet lever 38 is formed so as to extend from the ratchet shaft 3x shown in FIG. 7 in the same direction as the action portion 31 of the ratchet 3, and to extend from the inside of the latch case 11 to the inside of the main body case 10. It has the contact part 39 shown in FIG.

  In the latch mechanism L configured as described above, when the door D is in an open state with respect to the vehicle body B as shown by a two-dot chain line in FIG. 5, the latch 2 is a striker as shown in FIG. It will be arranged at a position where the intrusion groove 11a is opened. When the door D is moved from this state toward the closed position, the striker S provided on the vehicle body B enters the striker entry groove 11a of the latch case 11, and the striker S eventually locks the latch 2. It will contact the part 22. As a result, the latch 2 rotates counterclockwise in FIG. 7-1 against the elastic force of the latch spring. During this time, the ratchet 3 has the protruding end surface of the engaging portion 30 in sliding contact with the outer peripheral surface of the latch 2 due to the elastic force of the ratchet spring. Rotate.

  When the door D is further moved in the closing direction from the state described above, the amount of the striker S entering the striker entry groove 11a gradually increases, and as shown in FIG. The engagement groove 20 of the latch 2 is reached. Thereafter, as shown by the solid line in FIG. 5, when the door D is closed, the hook portion 21 of the latch 2 comes into contact with the engaging portion 30 of the ratchet 3 as shown in FIG. Therefore, the clockwise rotation of the latch 2 is prevented against the elastic restoring force of the latch spring. In this state, since the hook portion 21 of the latch 2 is arranged so as to cross the striker entry groove 11a, the striker S is moved by the hook portion 21 in a direction away from the back (outdoor) of the striker entry groove 11a. As a result, the door D is kept closed with respect to the vehicle body B (latched state).

  On the other hand, the contact portion 39 is moved upward in FIG. 2 by rotating the ratchet lever 38 against the elastic force of the ratchet spring from the above-mentioned latched state, and in FIG. 7-3, the ratchet is centered on the ratchet shaft 3x. 3 is rotated clockwise, the abutting engagement state between the hook portion 21 of the latch 2 and the engaging portion 30 of the ratchet 3 is released, and the latch 2 in FIG. Rotate clockwise. As a result, as shown in FIG. 7A, the striker intrusion groove 11a is opened, and the striker S can move in a direction away from the striker intrusion groove 11a, and the door D can be opened and moved with respect to the vehicle body B. become able to.

  As shown in FIG. 2, the door lock device 1 includes an outside door handle opening operation transmission mechanism 4, an inside door handle opening operation transmission mechanism 5, a lock mechanism 6, and a child lock inside a main body case 10. A mechanism 7 is provided.

  The outside door handle opening operation transmission mechanism 4 transmits the opening operation to the latch mechanism L when the outside door handle OH shown in FIGS. 1 and 3 to 5 is opened. Even when the latch mechanism L is in the latched state, the latch mechanism L is switched to the unlatched state. As shown in FIGS. 2 and 5, the outside door handle linking member 13, the outside door handle lever 40, and the open mechanism are opened. The lever 70 is configured.

  As shown in FIG. 4, the outside door handle OH is provided on the door D in such a manner that it can swing around the axis OHx of the outside door handle shaft OHX extending substantially in the vertical direction. A side door handle operating portion OHa and an outside connecting end portion OHb are provided, and the outside door handle operating portion OHa is attached to the door D so as to appear on the outer surface of the door D.

  The outside door handle operation portion OHa is a handle for operation by a person who gets on the vehicle, and is formed in a form extending radially outward from the axis OHx of the outside door handle shaft OHX.

  The outside connecting end portion OHb is a portion that links one end of the outside door handle linking member 13 and is formed in a form extending radially outward from the axis OHx of the outside door handle shaft OHX.

  An outside door handle biasing spring (not shown) is provided between the outside door handle OH and the door D, and the extending direction of the outside door handle operation portion OHa is set to the outer surface of the door D. The rotation position (the initial position of the outside door handle OH) is set so as to follow.

  When the outside door handle OH is operated to open, the outside door handle linking member 13 transmits the opening operation to the outside door handle lever 40. is there. The outside door handle linking member 13 has the other end linked to an outside door handle linking end 42 of an outside door handle lever 40 described later.

  As shown in FIG. 8, the outside door handle lever 40 can swing around an axis 40x of the outside door handle lever shaft 40X extending substantially horizontally along the front-rear direction of the vehicle body B. Provided in the main body case 10, and includes an outside door handle lever base 41, an outside door handle linkage end 42, an outside operation end 43, and an outside pressure receiving portion 44.

  Between the outside door handle lever 40 and the main body case 10, the outside door handle lever urged to rotate counterclockwise in FIG. 8 around the axis 40x. A spring is provided. In addition, a stopper (not shown) is provided that abuts the outside door handle lever 40 biased by the biasing force of the outside door handle lever spring and defines the rotational position (initial position) of the outside door handle lever 40.

  The outside door handle lever base 41 is formed in a disk shape, for example, and an outside door handle lever shaft hole 41a for penetrating the outside door handle lever shaft 40X is formed at the center thereof.

  The outside door handle linking end portion 42 is a portion extending in the outdoor direction from the outdoor side end portion of the outside door handle lever base portion 41 in a state where the outside door handle lever 40 is disposed at the initial position. . The other end portion of the outside door handle linkage member 13 is attached to the outside door handle linkage end portion 42.

  The outside operation end 43 and the outside pressure receiving portion 44 both extend in the indoor direction from the indoor side end of the outside door handle lever base 41 when the outside door handle lever 40 is disposed at the initial position. The outside operation end portion 43 is a portion that further extends toward the indoor side, and the outside pressure receiving portion 44 is a portion that extends downward thereafter. The outside operation end portion 43 is disposed in a lower region of the contact portion 39 of the ratchet lever 38.

  The outside operation end portion 43 and the outside pressure receiving portion 44 are initially set in a state of being moved downward as shown in FIG. 2 by the above-described outside door handle lever spring (not shown). The outside door handle lever 40 rotates around the axis 40x when the outside door handle OH is operated to open, and the outside operation end 43 and the outside pressure receiving portion 44 are shown in FIG. It moves upwards.

  The open lever 70 is attached to the link lever 60, and the link lever 60 is linked to the lock lever 50. Therefore, the lock lever 50, the link lever 60, and the open lever 70 will be described in this order.

  As shown in FIG. 2, the lock lever 50 has an axial center of a lock lever shaft 50 </ b> X that extends substantially horizontally along the left-right width direction of the vehicle body B at a position in front of the outside door handle lever 40. As shown in FIG. 10, a lock lever base 51, a spring linkage 52, a link lever linkage 53, a worm wheel linkage 54, The sub-inside door handle lever linking portion 55 is provided.

  The lock lever base 51 is formed in a disc shape, and a lock lever shaft hole 51a for penetrating the lock lever shaft 50X is formed at the center thereof.

  The spring linking part 52 is formed in a plate shape so as to extend radially outward from the axis 50x of the lock lever shaft 50X. As shown in FIG. 9, a spring linking pin 52a is formed at the tip of the spring linking part 52 so as to protrude from the end surface on the outdoor side toward the outdoor side. As shown in FIG. 2, an unlock swing between the spring linking portion 52 and the body case 10 in which the lock lever 50 swings most counterclockwise around the shaft center 50x of the lock lever shaft 50X. As shown in FIG. 21, an over-center biasing spring 50s that biases the lock lever 50 toward either the lock swing position where the lock lever 50 swings most clockwise is provided. .

  As shown in FIG. 2, when the lock lever 50 is swung to the unlock swing position by the overcenter biasing spring 50s, the link lever link portion 53 is moved downward from the vehicle rear side end portion of the lock lever base 51. It is the part formed so that it might extend in the aspect inclined toward. As shown in FIG. 9, a link lever connecting pin 53a is provided at the tip of the link lever linking portion 53 so as to protrude from the end surface on the outdoor side toward the outdoor side. The link lever connecting pin 53a is a columnar protrusion that extends substantially horizontally along the left-right width direction of the vehicle body B. The worm wheel linkage portion 54 and the sub inside door handle lever linkage portion 55 will be described later.

  As shown in FIGS. 2 and 9, the link lever 60 is provided between the lock lever 50 and the outside door handle lever 40, and includes a link lever base 61 as shown in FIG.

  The link lever base 61 is formed in a disk shape, and has a link lever shaft hole 61a for attaching the connector 69 at the center thereof. As shown in FIG. 11-4, the connector 69 attached to the link lever shaft hole 61a includes a cylindrical connector main body 69a, an engagement groove 69b provided in the connector main body 69a, and a connector main body 69a. And a connector engaging claw 69c formed so as to protrude outwardly on the peripheral surface of the distal end portion.

  The connector 69 is attached to the link lever 60 by, for example, press-fitting the base end portion of the connector main body 69a into the link lever shaft hole 61a. As shown in FIGS. 9 and 12, the connecting tool 69 is attached to the outside door handle lever 40 by inserting the tip of the outside door handle lever 40 into the engaging groove 69b of the connecting tool 69 as described above. It is. Therefore, the outside door handle lever 40 and the link lever 60 are linked via the coupling tool 69. The connector main body 69a has a function as a link lever shaft extending along the left-right width direction of the vehicle main body B, and the link lever 60 can be swung around the axis 60x.

  In a state where the link lever 60 and the outside door handle lever 40 are linked by the connector 69, the link lever 60 can swing around the axis 60x. In addition, when the outside door handle lever 40 is swung around the axis 40x of the outside door handle lever shaft 40X, the link lever 60 is also swung around the axis 40x. Therefore, when the outside door handle OH is opened, the outside operation end 43 and the outside pressure receiving portion 44 move upward in FIG. 2, and the link lever 60 also moves upward, When the opening operation of the door handle OH is removed, the link lever 60 is also moved downward together with the outside operation end 43 and the outside pressure receiving portion 44 as shown in FIG.

  Further, as shown in FIG. 11, the link lever 60 includes a lock lever linking portion 62 that extends in the radially outward direction of the shaft center 60x. The lock lever linking portion 62 has a connection hole 62a. As shown in FIG. 9, the link lever connecting pin 53a of the lock lever 50 is inserted into the connecting hole 62a. The connection hole 62a extends in a direction intersecting the axial center 60x with respect to the radially outward direction so that the link lever connection pin 53a can move in the vertical direction (in this example, as shown in FIG. 2). The embodiment extends in the vertical direction). That is, the connecting hole 62a is a long hole for the link lever connecting pin 53a.

  Further, as shown in FIGS. 9 and 12, a contact wall 63 that contacts an open contact portion of an open lever 70 described later is provided on the proximal end side of the lock lever linkage portion 62. The abutting wall 63 is a wall configured to protrude from the surface on the indoor side of the lock lever linking portion 62 toward the indoor side.

  Further, a locking pin 64 for locking one end of an open pulling described later is provided on the proximal end side of the lock lever linking portion 62. The latch pin 64 is formed so as to protrude from the end surface on the outdoor side of the lock lever linkage portion 62 to the outdoor side.

  As shown in FIGS. 2, 9, and 13, the open lever 70 has an open lever base 71 formed in a disk shape. The open lever base 71 has an open lever shaft hole 71a. In a state where the connector main body 69a is attached to the open lever shaft hole 71a, the link lever 60 and the outside door handle lever 40 are linked via the connector 69. In the state in which the connecting tool 69 is attached to the open lever 70, the connecting tool engaging claw 69c prevents the connecting tool 69 from being detached from the open lever 70.

  Similarly to the link lever 60, the connector main body 69a has a function as an open lever shaft extending along the left-right width direction of the vehicle main body B, and opens around the axis 70x that matches the axis 60x. The lever 70 can be swung. In a state where the link lever 60 and the outside door handle lever 40 are linked by the connecting tool 69, the open lever 70 can swing around the axis 70x. In addition, when the outside door handle lever 40 swings about the axis 40x of the outside door handle lever shaft 40X, the open lever 70 also swings about the axis 40x.

  Therefore, when the outside door handle OH is operated to open, the outside operation end 43 and the outside pressure receiving portion 44 move upward in FIG. 2, and the open lever 70 also moves upward. When the door opening operation of the door handle OH is removed, as shown in FIG. 2 together with the outside operation end portion 43 and the outside pressure receiving portion 44, the open lever 70 is also moved downward. In other words, when the outside door handle OH is opened, the open lever 70 moves upward, which is the release direction intersecting the axis 70x, while the outside door handle OH is opened. When is removed, the open lever 70 also returns to the lower position.

  As shown in FIG. 13, the open lever 70 includes a spring hooking portion 72, a ratchet driving portion 73, and a link abutting portion 74.

  The spring latching portion 72 is a portion formed in a manner of projecting outward from the peripheral surface of the open lever base portion 71, and is a portion that latches the open pull 70s shown in FIG.

  One end of the open pull 70s is hooked on the latch pin 64 of the link lever 60 shown in FIG. 11, while the other end is projected from the outer peripheral surface of the open lever base 71 as shown in FIG. It is latched on the latching piece 75 formed in the above. The open pull 70s sets the rotation position (initial position) of the open lever 70 by bringing the link contact portion 74 into contact with the contact wall 63 of the link lever 60 by its urging force. .

  When the open lever 70 is disposed at the initial position, the spring hooking portion 72 described above projects from the vehicle rear side end portion of the open lever base portion 71 toward the vehicle rear side, and the tip end portion thereof is on the indoor side. It is a part formed by bending so as to protrude.

  The ratchet driving unit 73 is formed to extend upward from the upper end of the open lever base 71 when the open lever 70 is disposed at the initial position. The ratchet drive unit 73 has a tip end bent toward the outdoor side. When the open lever 70 is disposed at the initial position, the ratchet driving unit 73 is disposed so as to face and oppose the lower end surface of the contact portion 39 of the ratchet lever 38. Hereinafter, the initial position of the open lever 70 is referred to as a release position.

  The link contact portion 74 is formed so as to project from the side portion on the vehicle front side toward the vehicle front side and then bend toward the outdoor side at the intermediate portion between the open lever base portion 71 and the ratchet drive portion 73. Part. As shown in FIG. 9, the link contact portion 74 is in contact with the contact wall 63 of the link lever 60 by the biasing force of the open pull 70s.

  Next, the operation of the outside door handle opening operation transmission mechanism 4 having the above configuration will be described. Here, for convenience of explanation, the opening of the vehicle body B is closed by the door D, the latch mechanism L is switched to the latched state, and the outside door handle OH is disposed at the initial position. 2, the outside door handle lever 40 is disposed at the initial position, the lock lever 50 is disposed at the unlock swing position, and the open lever 70 is disposed at the release position. To do.

  In this state, when a person riding in the vehicle opens the outside door handle OH, the outside door handle lever 40 is centered on the axis 40x of the outside door handle lever shaft 40X. 1, the counterclockwise rotation occurs, and the outside operation end 43 moves upward in FIG. As the outside operation end 43 moves, the link lever 60 and the open lever 70 move upward (in the release direction) as shown in FIG. 14, and the ratchet drive unit 73 of the open lever 70 moves to the ratchet lever 38. It abuts against the abutment portion 39 and is moved upward in FIG. As a result, even when the latch mechanism L is in the latched state, it can be switched to the unlatched state, so that the door D can be opened and moved relative to the vehicle body B.

  Even when the link lever 60 moves upward as shown in FIG. 14, the link lever connection pin 53 a of the lock lever 50 only moves inside the connection hole 62 a of the link lever 60 in accordance with the movement. In addition, the lock lever 50 does not rotate around the axis 50x of the lock lever shaft 50X in accordance with the movement of the link lever 60 described above.

  Thereafter, when the person getting on the vehicle removes the opening operation of the outside door handle OH, the outside door handle OH is returned to the initial position by the biasing force of the outside door handle biasing spring, and the outside door Due to the urging force of the handle lever spring, the outside door handle lever 40 returns to the initial position, and the link lever 60 and the open lever 70 return to the state of moving downward as shown in FIG.

  When the inside door handle IH shown in FIGS. 4, 5, and 6 is opened, the inside door handle opening operation transmission mechanism 5 transmits the opening operation to the latch mechanism L, thereby Even when the mechanism L is in the latched state, the mechanism L is switched to the unlatched state. As shown in FIGS. 2 and 4, the inside door handle link member 14, the inside door handle lever 190, the connect lever 100, and the above-mentioned The open lever 70 is configured.

  As shown in FIG. 4, the inside door handle IH is provided on the door D in such a manner that the inside door handle IH can rotate about the axis IHx of the inside door handle shaft IHX extending substantially along the vertical direction. An operation portion IHa and a handle lever linkage end portion IHb are provided. In this example, a recess 15 is provided on the inner surface of the door D as shown in FIG. More specifically, the recess 15 is provided in the door trim DT that constructs the indoor side surface of the door D. The recess 15 is sized so that the inside door handle operation portion IHa can be inserted, and is formed from the indoor surface of the door D toward the outdoor side.

  The inside door handle operation portion IHa is a handle for operation by a person riding in the vehicle, and is formed in a mode extending radially outward from the axis IHx of the inside door handle shaft IHX.

  The handle lever linking end portion IHb is a portion for linking one end of the inside door handle linking member 14 and is formed so as to extend radially outward from the axis IHx of the inside door handle shaft IHX.

  As shown by the two-dot chain line in FIG. 6, such an inside door handle IH is configured such that the tip of the inside door handle operating portion IHa moves from the lock position where the tip of the inside door handle operating portion IHa is located at the back of the recess 15. It is attached to the door D so as to swing to the opening operation position protruding inward.

  The inside door handle linking member 14 is formed of, for example, a wire or a link, and the other end is linked to an inside door handle linking portion 82 of a main inside door handle lever 80 described later.

  The inside door handle lever 190 includes a main inside door handle lever 80 and a sub inside door handle lever 90.

  As shown in FIG. 2, the main inside door handle lever 80 and the sub inside door handle lever 90 are inside doors that extend substantially horizontally along the left-right width direction of the vehicle body B at a portion below the lock lever 50. As shown in FIG. 15, an inside door handle lever base portion 81, an inside door handle linkage portion 82, and a sub lever linkage portion are provided in the main body case 10 so as to be swingable around the axis 80x of the handle lever shaft 80X. 83.

  The inside door handle lever base portion 81 is formed in a disc shape, and an inside door handle lever shaft hole 81a for penetrating the inside door handle lever shaft 80X is formed at the center thereof.

  As shown in FIG. 2, the inside door handle linkage portion 82 is a portion extending radially outward from the axis 80x of the inside door handle lever shaft 80X. This inside door handle linkage portion 82 is provided with a bent portion 82a that bends from the surface on the indoor side toward the indoor side at an intermediate portion from the axial center 80x to the tip portion of the inside door handle, as shown in FIG. Through the opening 10 a formed in the main body case 10, the tip end side of itself is extended to the outside of the main body case 10. The other end of the inside door handle linking member 14 is linked to the distal end of the inside door handle linking portion 82.

  The main inside door handle lever 80 is, as shown in FIG. 20, viewed from the third position where the inside door handle linkage portion 82 swings most clockwise about the axis IHx of the inside door handle shaft IHX. As shown in FIG. 21, the inside door handle linkage portion 82 is configured to swing to the first position where the inside door handle linkage portion 82 swings most counterclockwise around the axis IHx of the inside door handle shaft IHX.

  In the main inside door handle lever 80, when the inside door handle IH is arranged at the lock position, the inside door handle linkage portion 82 is arranged at the first position, and the inside door handle IH is arranged at the door opening operation position. In this case, the inside door handle linkage portion 82 is linked to the inside door handle IH by the inside door handle linkage member 14 so that the inside door handle linkage portion 82 is disposed at the third position.

  Further, an unlock position setting spring 80 s is provided between the main inside door handle lever 80 and the main body case 10. When the unlocking position setting spring 80s is disposed between the second position set between the first position and the third position, and the inside door handle link portion 82 between the third position and the second position. As shown in FIG. 2B, the main inside door handle lever 80 is urged so that the inside door handle linkage portion 82 moves to the second position.

  When the inside door handle linkage portion 82 is disposed at the second position, the inside door handle IH is unlocked as indicated by the solid line in FIG. 6 (the extending direction of the inside door handle operation portion IHa is the door D The inside door handle linking member 14 is linked to the inside door handle IH so as to be at a rotational position along the surface on the indoor side.

  As shown in FIG. 2, when the inside door handle linkage portion 82 is disposed at the second position, the sub lever linkage portion 83 is inclined downward from the vehicle rear side end portion of the inside door handle lever base portion 81 toward the vehicle rear side. It is the part extended so as to. The sub lever linking portion 83 is formed with a pin engaging hole 83H for inserting a child pin 150 described later.

  As shown in FIG. 15, the pin engaging hole 83H has a first hole 83a and a child extending in the inner and outer directions of the shaft center 80x so that the child pin 150 can move only in the inner and outer directions of the shaft center 80x. A second hole 83b extending around the axis 80x of the inside door handle lever shaft 80X is provided so that the pin 150 can move only around the axis 80x of the inside door handle lever shaft 80X. That is, the first hole 83a is a long hole with respect to the child pin 150 in the radially inner and outer directions of the shaft center 80x, and the second hole 83b is a child in the direction around the shaft center 80x of the inside door handle lever shaft 80X. It is a long hole with respect to the pin 150. In this example, in the first hole 83a, the second hole 83b extends around the axis 80x of the inside door handle lever shaft 80X upward from the inner end closest to the axis 80x. A pin engaging hole 83H is formed to do this.

  Further, in the main inside door handle lever 80, an engaging wall 85 that protrudes in the radially outward direction is provided at the edge in the radially outward direction of the shaft center 90 in the extending direction of the first hole 83a.

  The sub inside door handle lever 90 transmits the lock operation and unlock operation from the main inside door handle lever 80 to the lock lever 50 when the lock operation and unlock operation are given to the inside door handle IH, as will be described later. In addition, it transmits the swing of the lock lever 50 to the main inside door handle lever 80 when the lock lever 50 is disposed at the lock swing position or the unlock swing position by driving the lock actuator 110 described later. It is.

  The sub-inside door handle lever 90 is provided in the main body case 10 so as to be swingable around the axis 80x of the inside door handle lever shaft 80X. As shown in FIG. And an inhan lever linking portion 92 and a lock lever abutting portion 93.

  The sub-inside door handle lever base 91 is formed in a disc shape, and a sub-inside door handle lever shaft hole 91a for allowing the inside door handle lever shaft 80X to pass therethrough is formed in the center thereof.

  As shown in FIG. 2, the inhan lever linking portion 92 is a portion extending radially outward from the shaft center 80x of the inside door handle lever shaft 80X. The inhan lever linking portion 92 is formed with a sub-pin engagement hole 92a.

  The sub-pin engagement hole 92a has the same shape as the first hole 83a of the main inside door handle lever 80, is formed in the same size, and extends from the axis 80x of the inside door handle lever shaft 80X. The inhan lever linking portion 92 is formed to have the same distance as the first hole 83a. That is, the sub-pin engagement hole 92a is formed in the in-hand lever linking portion 92 so as to extend radially outward from the shaft center 80x of the inside door handle lever shaft 80X. It is a long hole with respect to the pin 150.

  Since the pin engaging hole 83H of the main inside door handle lever 80 and the sub pin engaging hole 92a of the sub inside door handle lever 90 are formed as described above, as shown in FIG. In the state of being arranged at the end portion of the one hole 83a in the radially outward direction and at the end portion of the sub-pin engaging hole 92a in the radially outward direction, the main inside door handle lever 80 and the sub inside door handle lever 90 are driven by the child pin 150. When the main inside door handle lever 80 swings about the shaft center 80x, for example, as shown in FIGS. 20 and 21, the sub inside door handle lever 90 swings as well. To do. On the other hand, in the state where the child pin 150 is disposed at the end portion in the radial direction of the first hole 83a and the end portion in the radial direction of the sub-pin engagement hole 92a as shown in FIG. 25, even if the main inside door handle lever 80 is swung clockwise in FIG. 25, the child pin 150 is simply moved in the first hole 83a, and the main inside door handle lever 80 is swung. Is transmitted to the sub-inside door handle lever 90 (hereinafter, the child pin 150 is disposed at the end portion in the radial direction of the first hole 83a and at the end portion in the radial direction of the sub-pin engagement hole 92a. This case is referred to as “the interlocking position of the child pin 150”, and the child pin 150 is located at the end portion in the radially outward direction of the first hole 83a and at the end portion in the radially outward direction of the sub-pin engagement hole 92a. A case in which the location of "non-interlocking position of the child pin 150".

  The lock lever abutting portion 93 is a portion that extends radially outward from the shaft center 80x of the inside door handle lever shaft 80X and then extends around the shaft center 80x of the inside door handle lever shaft 80X.

  As shown in FIG. 18, the connect lever 100 is provided in the main body case 10 in such a manner that it can swing around the axis of the connect lever shaft 100 x extending substantially horizontally along the left-right width direction of the vehicle main body B. As shown in FIG. 19, a connect lever base 101, a connect pressure receiving portion 102, and a connect pressing portion 103 are provided. The initial position of the connect lever 100 is as shown in FIG. 2 in a state in which the main inside door handle lever 80 is disposed at the second position and the outside door handle lever 40 is disposed at the initial position. The connection pressure receiving portion 102 is in contact with the child pin 150 disposed in the interlocking position, and the connection pressing portion 103 is in contact with the outside pressure receiving portion 44.

  As shown in FIG. 19, the connect lever base 101 is formed in a disc shape, and a connect lever shaft hole 101a for penetrating the connect lever shaft 100x is formed in the center thereof.

  As shown in FIG. 2, the connection pressure receiving portion 102 extends in a manner in which the connection lever 100 is inclined upward from the vehicle front side end portion of the connection lever base portion 101 toward the vehicle front side in a state where the connection lever 100 is disposed at the initial position. It is a part to do. A child pin 150 penetrating through the first hole 83a of the main inside door handle lever 80 and the sub pin engaging hole 92a of the sub inside door handle lever 90 abuts on the upper side end of the connection pressure receiving portion 102. Yes.

  As shown in FIG. 2, the connect pressing portion 103 is a portion extending from the vehicle rear side end portion of the connect lever base portion 101 toward the rear of the vehicle in a state where the connect lever 100 is disposed at the initial position. The tip of the connection pressing portion 103 is bent upward. The connection pressing portion 103 is disposed in such a manner as to contact the lower end portion of the connection pressure receiving portion 102 of the outside door handle lever 40.

  Next, the operation of the inside door handle opening operation transmission mechanism 5 having the above configuration will be described. Here, for convenience of explanation, the opening of the vehicle body B is closed by the door D, the latch mechanism L is switched to the latched state, and as shown by the solid line in FIG. As shown in FIG. 2, the outside door handle lever 40, the lock lever 50, and the connect lever 100 are arranged in the initial position, and the main inside door handle lever 80 is in the second position. It is assumed that the open lever 70 is located at the release position and the child pin 150 is located at the interlocking position.

  From this state, a person riding in the vehicle rotates the inside door handle operation portion IHa counterclockwise around the axis IHx as shown by a two-dot chain line in FIG. If the inside door handle IH is opened so that the inside door handle operating portion IHa is positioned at the door opening position, the person will not be able to open the door. The main inside door handle lever 80 is transmitted to the main inside door handle lever 80 via the inside door handle linking member 14 and resists the urging force of the unlocking position setting spring 80s, with the axis 80x as the center in FIG. By swinging clockwise, the inside door handle linkage portion 82 is disposed at the third position.

  The swing of the main inside door handle lever 80 described above is transmitted to the connect lever 100 by the child pin 150, and the connect lever 100 rotates about the connect lever shaft 100x counterclockwise as shown in FIG. It becomes.

  In accordance with the rotation of the connect lever 100, the outside operation end 43 of the outside door handle lever 40 moves upward in FIG. As the outside operation end 43 moves, the link lever 60 and the open lever 70 move upward (in the release direction) as shown in FIG. 20, and the ratchet drive unit 73 of the open lever 70 moves the ratchet lever 38. This is abutted against the abutting portion 39 and moved upward in FIG. As a result, even when the latch mechanism L is in the latched state, it can be switched to the unlatched state, so that the door D can be opened and moved relative to the vehicle body B.

  Even when the link lever 60 moves upward as shown in FIG. 20, the link lever connection pin 53 a of the lock lever 50 only moves inside the connection hole 62 a of the link lever 60 with the movement. In addition, the lock lever 50 does not rotate around the axis 50x of the lock lever shaft 50X in accordance with the movement of the link lever 60 described above.

  Thereafter, when the person getting on the vehicle removes the opening operation of the inside door handle IH, the main inside door handle lever 80 is disposed at the second position by the urging force of the unlock position setting spring 80s, and the inside The door handle IH is disposed at the unlock position, the connect lever 100 returns to the initial position, and the outside door handle lever 40 returns to the initial position by the biasing force of the outside door handle lever spring.

  The lock mechanism 6 is interposed between the main inside door handle lever 80 and the latch mechanism L. When the inside door handle IH is opened in the unlocked state, the lock mechanism 6 is transmitted to the latch mechanism L. While releasing the latch state and allowing the door D to move in the opening direction, the latch mechanism is maintained in the latch state even when the inside door handle IH is operated to open in the locked state. As shown in FIG. 2, the lock mechanism 6 includes a lock actuator 110, a worm wheel 120, the lock lever 50, and the link lever 60 described above.

  The worm wheel 120 is rotatable in a manner that allows the worm wheel 120 to rotate about a worm wheel shaft 120x extending substantially horizontally along the left-right width direction of the vehicle main body B at a position in front of the lock lever shaft 50X. And is arranged so as to mesh with a worm gear 112 fixed to an output shaft 111 of an electric motor (lock actuator) 110. An intermittent gear wheel 121 is fixed to the worm wheel 120 so as to be on the same axis as the worm wheel shaft 120x. The intermittent gear wheel 121 constitutes an intermittent power transmission means only in one direction with respect to an intermittent driven gear of the lock lever 50 described later. As shown in FIG. 18, a worm wheel initial state maintaining spring 120s for maintaining the worm wheel 120 at a predetermined rotational position (initial position) is provided between the worm wheel 120 and the main body case 10.

  Next, in the lock lever 50 described above, the worm wheel linkage portion 54 and the sub inside door handle lever linkage portion 55 shown in FIG. 10 will be described.

  As shown in FIG. 2, when the lock lever 50 is swung to the unlock swing position by the overcenter biasing spring 50 s, the worm wheel linkage portion 54 starts from the vehicle front side end of the lock lever base 51. It is the part formed so that it might extend in the aspect which inclines below toward the front. The worm wheel linking part 54 is configured in a fan shape so that the tip side gradually opens as the distance from the axis 50x of the lock lever shaft 50X increases.

  An intermittent driven gear 54 a that meshes with the intermittent gear wheel 121 is provided on the peripheral surface of the lock lever shaft 50 </ b> X on the distal end side of the worm wheel linkage portion 54. Although not shown in the drawing, intermittent power transmission means is provided between the intermittent driven gear 54 a of the lock lever 50 and the intermittent gear wheel 121 of the worm wheel 120. This intermittent power transmission means swings the lock lever 50 in any direction about the axis 50x of the lock lever shaft 50X by rotating the worm wheel 120 in any one direction around the worm wheel shaft 120x. On the other hand, when the lock lever 50 is swung in an arbitrary direction, the rocking force of the lock lever 50 is transmitted to the worm wheel 120 between the intermittent driven gear 54a and the intermittent gear wheel 121. The lock lever 50 can be swung in any direction without blocking and rotating the worm wheel 120.

  When the lock lever 50 is swung to the unlock swing position by the overcenter biasing spring 50s, the sub-inside door handle lever linking portion 55 moves downward from the lower end of the lock lever base 51 toward the rear of the vehicle. It is the part formed so that it may extend toward.

  The sub-inside door handle lever linking portion 55 is formed in a fan shape so that the distal end side gradually opens as the distance from the shaft center 50x of the lock lever shaft 50X increases. On the distal end side of the sub inside door handle lever linking portion 55, a lever fitting groove 55H for fitting the lock lever abutting portion 93 of the main inside door handle lever 80 is formed on the peripheral surface with respect to the lock lever shaft 50X. . The lever insertion groove 55H is formed from the peripheral surface of the sub inside door handle lever linking portion 55 toward the shaft center 50x of the lock lever shaft 50X, and is a first contact wall located above in FIG. 10-1. 55a, a second abutting wall 55b positioned below, and a connecting wall 55c that couples the radially inward end of the first abutting wall 55a and the radially inward end of the second abutting wall 55b It consists of

  The first abutting wall 55a has a uniform angle formed by its own surface and a surface passing through the axis 50x. On the other hand, the second abutment wall 55b has a different angle formed by the inner surface 55b1 and the surface passing through the axial center 50x, and an angle formed by the front surface 55b2 and the surface passing through the axial center 50x. It is configured as follows. Specifically, the angle formed by the back surface 50b1 and the surface passing through the shaft center 50x is set to be relatively small, while the front surface 50b1 and the surface passing through the shaft center 50x are formed. The corner is set relatively large.

  As shown in FIG. 2, the lock lever 50 has the link lever connecting pin 53a positioned above the connecting hole 62a of the link lever 60, and the intermittent driven gear 54a is connected to the intermittent gear of the worm wheel 120. The unlock swing position is set so that the lock lever abutting portion 93 of the sub inside door handle lever 90 abuts only on the first abutting wall 55a.

  Further, as shown in FIG. 10, a sensor pressing portion 50b is provided at the upper end portion of the worm wheel linkage portion 54, and the body case 10 can be in contact with the sensor pressing portion 50b. A lock state detection sensor Sa that detects whether or not the lock mechanism 6 is in the lock state is provided.

  As will be described later, when the lock mechanism 6 is switched to the locked state, the sensor pressing portion 50b contacts the detector Sa1 of the lock state detection sensor Sa and displaces the lock mechanism 6 to the unlocked state. In such a case, it is configured so as to be disposed at a site that is out of contact with the detector Sa1.

  Next, the operation of the lock mechanism 6 having the above configuration will be described. Here, for convenience of explanation, the opening of the vehicle body B is closed by the door D, the latch mechanism L is switched to the latched state, and as shown by the solid line in FIG. As shown in FIG. 2, the outside door handle lever 40, the lock lever 50, the open lever 70, and the connect lever 100 are arranged at the initial position, and the main inside door handle lever 80 is disposed at the unlock position. Is disposed at the second position, the open lever 70 is disposed at the release position, and the child pin 150 is disposed at the interlocking position.

  From this state, a person riding in the vehicle rotates the inside door handle operation portion IHa clockwise around the axis IHx as shown by a two-dot chain line in FIG. When the inside door handle IH is locked so that the inside door handle operating unit IHa is placed in the lock position, the lock operation by the person is As shown in FIG. 21, the main inside door handle lever 80 swings counterclockwise about the shaft center 80x to the first position as shown in FIG. Will be placed.

  The swing of the main inside door handle lever 80 described above is transmitted to the sub inside door handle lever 90 by the child pin 150, and along with the swing of the main inside door handle lever 80, the sub inside door handle lever 90 is also centered on the axis 80x. Oscillate counterclockwise.

  As the sub-inside door handle lever 90 swings, the lock lever abutting portion 93 of the sub-inside door handle lever 90 abuts on the first abutting wall 55a of the lock lever 50. Thus, it rotates clockwise around the axis 50x of the lock lever shaft 50X against the urging force of the overcenter urging spring 50s. When the lock lever 50 is rotated, the swinging force of the lock lever 50 is not transmitted to the worm wheel 120 by the intermittent power transmission means.

  When the lock lever 50 rotates clockwise around the axis 50x of the lock lever shaft 50X, the link lever 60 swings counterclockwise around the axis 60x, and the open lever 70 It swings counterclockwise around the center 70x. By this swinging, the ratchet driving portion 73 of the open lever 70 is disposed so as to be disengaged from the portion facing the lower end surface of the abutting portion 39 of the ratchet lever 38 (disposed at the non-release position). 6 switches to the locked state.

  In the above description, the lock mechanism 6 is switched to the locked state by operating the inside door handle IH. However, for example, the control unit drives the lock actuator 110 by operating the lock switch attached to the key of the vehicle. By giving a signal, the lock mechanism 6 can be similarly switched to the locked state.

  Further, even when the lock mechanism 110 is switched to the locked state by the lock actuator 110 in this way, the swing of the lock lever 50 is transmitted to the main inside door handle lever 80 by the sub inside door handle lever 90. The tip of the part IHa is retracted into the recess 15 and the inside door handle operation part is arranged at the lock position. Therefore, for example, a person inside the vehicle can see that the lock mechanism 6 is in the locked state by looking at the position of the inside door handle operation unit IHa.

  As described above, when the lock mechanism 6 is switched to the locked state, when the person who gets on the vehicle opens the outside door handle OH, the open lever 70 is Rotating counterclockwise in FIG. 8-1 around the axis 40x of the side door handle lever shaft 40X, the outside operation end 43 moves upward (in the release direction) as shown in FIG. It will be. Along with the movement of the outside operation end 43, the link lever 60 and the open lever 70 move upward so as to incline toward the front side of the vehicle, but the ratchet 3 drive portion of the open lever 70 contacts the ratchet lever 38. There is no contact with the portion 39. As a result, since the latch mechanism L in the latched state cannot be switched to the unlatched state, the door D cannot be opened and moved with respect to the vehicle body B.

  Further, as shown in FIG. 21, in the state where the lock mechanism 6 is switched to the locked state, the person riding on the vehicle rotates the inside door handle operating portion IHa counterclockwise around the axis IHx. When the inside door handle IH is unlocked so that the inside door handle operating portion IHa is disposed at the unlock position indicated by the solid line in FIG. 6, the unlock operation by the person is performed by the inside door handle linking member 14. As shown in FIG. 23, the main inside door handle lever 80 swings clockwise around the axis 80x and is disposed at the second position. It will be.

  The swing of the main inside door handle lever 80 described above is transmitted to the sub inside door handle lever 90 by the child pin 150, and along with the swing of the main inside door handle lever 80, the sub inside door handle lever 90 is also centered on the axis 80x. Oscillate clockwise.

  As the sub-inside door handle lever 90 swings, the lock lever abutment portion 93 of the sub-inside door handle lever 90 abuts only on the inner surface 55b1 of the second abutment wall 55b of the lock lever 50. Thus, the lock lever 50 rotates counterclockwise around the shaft center 50x against the biasing force of the overcenter biasing spring 50s. When the lock lever 50 is rotated, the swinging force of the lock lever 50 is not transmitted to the worm wheel 120 by the intermittent power transmission means.

  When the lock lever 50 rotates counterclockwise about the shaft center 50x, the link lever 60 swings clockwise about the link lever shaft 60x, and the open lever 70 moves the open lever shaft 70 around. It will oscillate clockwise around the center. When the open lever 70 swings in such a manner, the ratchet driving portion 73 of the open lever 70 is disposed so as to be close to and opposed to the lower end surface of the contact portion 39 of the ratchet lever 38, and the open lever 70 is in the release position. It will return to (unlocked state).

  When the lock mechanism 6 is switched to the unlocked state in this way, the open lever 70 is disposed at the release position, while when the lock mechanism 6 is switched to the locked state, the open lever 70 is moved to the non-released position. Will be placed.

  In the above description, the lock mechanism 6 is switched to the unlocked state by operating the inside door handle IH. However, for example, the lock actuator 110 is controlled from the control means by operating the unlock switch attached to the key of the vehicle. Similarly, the lock mechanism 6 can be switched to the unlocked state by applying a drive signal to.

  In addition, even when the lock mechanism 110 is switched to the unlocked state by the lock actuator 110 in this way, the swing of the lock lever 50 is transmitted to the main inside door handle lever 80 by the sub inside door handle lever 90. The operation unit IHa is disposed at the unlock position. Thus, for example, a person in the vehicle compartment can see that the lock mechanism 6 is unlocked by looking at the position of the inside door handle operation unit IHa.

  When the door opening operation is performed with the inside door handle IH after the lock mechanism 6 is switched to the unlocked state as described above, as shown in FIG. The contact portion 93 does not contact the front surface 55b2 of the second contact wall 55b of the lock lever 50. This is because the angle formed by the front surface 50b1 of the second contact wall 55b and the surface passing through the axis 50x is set to be relatively large so as to avoid the contact.

  The child lock mechanism 7 is interposed between the main inside door handle lever 80, the sub inside door handle lever 90, the open lever 70 and the lock lever 50 as shown in FIG. And non-transmission state. The child lock mechanism 7 includes a child pin 150 and a child lever 140.

  The child lever 140 extends substantially horizontally along the left-right width direction of the vehicle body B at a position below the axis 80x of the inside door handle lever shaft 80X of the main inside door handle lever 80. As shown in FIG. 24, a child lever base 141, a pin engaging portion 142, a power child linking portion 143, and a manual operation are provided. And an operation lever holding portion 144.

  The child lever base 141 is formed in a disc shape, and a child lever shaft hole 141a for penetrating the child lever shaft 140X is formed at the center thereof.

  The pin engaging portion 142 is formed in such a manner as to extend radially outward from the axis 140x of the child lever shaft 140X. A pin engaging hole 142a for inserting the child pin 150 is formed at the tip of the pin engaging portion 142. The pin engaging hole 142a is formed so as to extend along the radially outward direction from the shaft center 140x so that the child pin 150 can move only in the radially inward and outward directions of the axial center 140x of the child lever shaft 140X. . In the child lever 140, for example, as shown in FIG. 2, a state in which the child pin 150 is disposed at the interlocking position is set as the initial position.

  In the state where the child lever 140 is disposed at the initial position as described above, the pin engaging portion 142 is a portion that extends upwardly from the vehicle front side end portion of the child lever base portion 141 toward the vehicle rear side. It is.

  As shown in FIG. 2, the power child linking portion 143 extends so as to incline downward from the vehicle front side end portion of the child lever base portion 141 toward the vehicle front when the child lever 140 is disposed at the initial position. Part. A second pin engagement hole 143a is formed at the tip of the power child linking portion 143.

  A power child pin 133 is inserted through the second pin engaging hole 143a. As shown in FIGS. 2 and 12, the power child pin 133 is a columnar protrusion extending radially outward from the axis 131 x of the output shaft 131 of the child actuator 130.

  The power child pin 133 is configured to be movable along the extending direction of the worm gear 132 when the worm gear 132 fixed to the output shaft 131 of the child actuator 130 rotates.

  As shown in FIG. 2, the manual operation lever holding portion 144 extends so as to incline upward from the vehicle rear side end portion of the child lever base portion 141 toward the vehicle rear when the child lever 140 is disposed at the initial position. It is a part to do. At the tip of the manual operation lever holding portion 144, a columnar manual operation portion 144a extending substantially horizontally along the left-right width direction of the vehicle main body B is provided from the end surface located on the indoor side. The distal end portion of the manual operation portion 144a protrudes to the outside of the main body case 10 through the operation hole 17 provided in the main body case 10 shown in FIG. 2-1, and is provided in the door trim DT of the door D as shown in FIG. It protrudes to the vehicle interior side through the operation opening DTa.

  The manual operation unit 144a can swing the child lever 140 about the axis 140x by swinging around the axis 140x of the child lever shaft 140X. In this example, as shown in FIG. 5, a manual operation portion 144 a is provided on the inner surface of the door D and at a position where the door D is closed when the door D is disposed at the closed position.

  As shown in FIG. 2, the operation hole 17 is an arc-shaped opening provided in the main body case 10, and defines the position of the manual operation unit 144 a in the child lever 140. As shown in FIG. 2, the position below the operation hole 17 of the main body case 10 is the child unlock position of the manual operation unit 144a. From the state shown in FIG. 2, the position where the manual operation unit 144a is rotated counterclockwise in FIG. 2 around the axis 140x and the manual operation unit 144a is moved upward is the child lock position.

  Further, as shown in FIG. 24, a through-hole 144b for penetrating the connect lever shaft 100x is formed in the intermediate portion from the shaft center 140x to the distal end portion of the manual operation lever holding portion 144, and is engaged. A wall 145 is provided.

  The engaging wall 145 is formed in such a manner that a portion located in the radially outward direction of the shaft center 140x protrudes toward the indoor side. Further, the engagement wall 145 is formed so as to protrude in the radially inward direction.

  As shown in FIG. 26, the engaging wall 145 and the engaging wall 85 of the main inside door handle lever 80 constitute the engaging means 180. As will be described later, the engagement means 180 maintains the state in which the main inside door handle lever 80 is disposed at the first position or the second position in a state where the child lock mechanism 7 is switched to the non-transmission state. It is. The child pin 150 is attached to the child lever 140 as shown in FIG. The child pin 150 includes a base portion 151, a mounting portion 152, and a transmission portion 153.

  The base portion 151 is a portion located between the child lever 140 and the sub inside door handle lever 90.

  The mounting portion 152 is a columnar protrusion that extends substantially horizontally along the left-right width direction of the vehicle main body B from the end surface located on the outdoor side of the base portion 151.

  The child pin 150 is inserted in the pin engaging hole 142a by inserting the distal end of the mounting portion 152 into the pin engaging hole 142a and sandwiching the base 151 between the child lever 140 and the sub-inside door handle lever 90. It is configured to be movable along.

  The transmission portion 153 is a columnar protrusion that extends substantially horizontally from the end surface located on the indoor side of the base portion 151 along the left-right width direction of the vehicle body B.

  The transmission portion 153 passes through the sub-pin engagement hole 92a of the sub-inside door handle lever 90, and its protruding end portion reaches a position exceeding the end surface on the indoor side of the sub-lever linkage portion 83 of the main inside door handle lever 80. .

  By the way, as shown in FIG. 2, when the lock mechanism 6 is switched to the unlocked state and the child pin 150 is disposed at the interlocking position (child unlocked state), the biasing force of the overcenter biasing spring 50s The lock lever 50 is biased toward the unlock swing position. The urging force applied to the lock lever 50 is applied to the main inside door handle lever 80 through the sub inside door handle lever 90. Therefore, the state where the main inside door handle lever 80 is disposed at the second position is maintained.

  Further, as shown in FIG. 21, in a state where the lock mechanism 6 is switched to the locked state and the child pin 150 is disposed at the interlocking position (child unlocked state), the locking is performed by the biasing force of the overcenter biasing spring 50s. The lever 50 is biased toward the lock swing position. The urging force applied to the lock lever 50 is applied to the main inside door handle lever 80 through the sub inside door handle lever 90. Therefore, the state where the main inside door handle lever 80 is disposed at the first position is maintained.

  Next, the operation of the child lock mechanism 7 having the above configuration will be described. Here, for convenience of explanation, the opening of the vehicle body B is closed by the door D, the latch mechanism L is switched to the latched state, and the inside door handle IH is unlocked as shown by the solid line in FIG. As shown in FIG. 2, the outside door handle lever 40, the lock lever 50, the open lever 70, the connect lever 100, and the child lever 140 are arranged in the initial position as shown in FIG. In the following description, it is assumed that the handle lever 80 is disposed at the second position and the child pin 150 is disposed at the interlock position.

  From the state shown in FIG. 2, for example, when the child ON signal is given to the child actuator 130 from the control means by operating the child lock switch attached to the key by the person in the vehicle who is in the vehicle interior. The child actuator 130 is driven, and the driving causes the child lever 140 to swing counterclockwise in FIG. 2 about the child lever shaft 140X.

  When the child lever 140 is rotated counterclockwise in FIG. 2 around the child lever shaft 140X, as shown in FIG. 25, the child pin 150 that has been occupied at the interlocking position is disposed at the non-interlocking position. (Child lock state).

  Even if the child lever 140 is rotated counterclockwise in FIG. 2 around the child lever shaft 140X by the manual operation unit 144a, the child pin 150 can be similarly arranged at the non-interlocking position.

  As shown in FIG. 25, when the child pin 150 is disposed at the non-interlocking position, the urging force of the overcenter urging spring 50s can be transmitted to the main inside door handle lever 80 through the sub inside door handle lever 90. Can not. Therefore, the main inside door handle lever 80 cannot be maintained in the second position by the biasing force of the overcenter biasing spring 50s.

  However, in the child lock state shown in FIG. 25, the engagement wall 145 of the child lever 140 and the engagement wall 85 of the main inside door handle lever 80 come into contact with each other, so that the main inside door handle lever 80 is in the second position. Can be maintained.

  In this state, when the inside door handle IH is arranged at the opening operation position, the main inside door handle lever 80 is arranged from the second position to the third position shown in FIG. 25 according to the opening operation. However, since the child pin 150 is occupied at the non-interlocking position, the sub inside door handle lever 90 does not swing together with the swing of the main inside door handle lever 80. As a result, the connect lever 100, the outside door handle lever 40, and the ratchet lever 38 do not swing, and the latch mechanism L in the latched state cannot be switched to the unlatched state. Cannot be moved.

  In the state shown in FIG. 25, when the inside door handle IH is locked, the main inside door handle lever 80 is arranged from the second position to the first position according to the locking operation. It becomes.

  When the main inside door handle lever 80 swings, the child pin 150 hits the upper end of the sub pin engagement hole 92a of the sub inside door handle lever 90. It swings with the inside door handle lever 80.

  As the sub-inside door handle lever 90 swings, the lock lever abutting portion 93 of the sub-inside door handle lever 90 abuts on the first abutting wall 55a of the lock lever 50. Thus, it rotates clockwise around the axis 50x of the lock lever shaft 50X against the urging force of the overcenter urging spring 50s. When the lock lever 50 rotates clockwise around the axis 50x of the lock lever shaft 50X, the link lever 60 swings counterclockwise around the axis 60x, and the open lever 70 It swings counterclockwise around the center 70x. By this swinging, the ratchet driving portion 73 of the open lever 70 is disposed so as to be disengaged from the portion facing the lower end surface of the abutting portion 39 of the ratchet lever 38 (disposed at the non-release position). 6 switches to the locked state.

  In the state where the child pin 150 shown in FIG. 26 is disposed at the non-interlocking position, the urging force of the over-center urging spring 50 s cannot be transmitted to the main inside door handle lever 80 through the sub inside door handle lever 90. Therefore, the main inside door handle lever 80 cannot be maintained in the first position by the biasing force of the overcenter biasing spring 50s.

  However, in the child lock state shown in FIG. 26, the engagement wall 145 of the child lever 140 and the engagement wall 85 of the main inside door handle lever 80 come into contact with each other, so that the main inside door handle lever 80 is in the first position. Can be maintained.

  After this state, when the unlocking operation is performed on the inside door handle IH, the main inside door handle lever 80 is arranged from the first position to the second position in accordance with the unlocking operation. .

  When the main inside door handle lever 80 swings as described above, the child pin 150 only moves inside the pin engagement hole 83H of the main inside door handle lever 80. The inside door handle lever 90 does not swing.

  As a result, the lock lever 50 and the link lever 60 do not swing, and the open lever 70 is maintained in the non-released position.

  After this state, when the door opening operation is performed on the inside door handle IH, the main inside door handle lever 80 is arranged from the second position to the third position in accordance with the door opening operation. .

  When the main inside door handle lever 80 swings as described above, the child pin 150 only moves inside the pin engagement hole 83H of the main inside door handle lever 80. The inside door handle lever 90 does not swing.

  As a result, the connect lever 100 does not swing and the open lever 70 does not move in the release direction.

  In addition, as shown in FIG. 25, in a state where the child pin 150 is disposed at the non-interlocking position, the person on the vehicle operates the child lock switch attached to the key to change the child actuator 130 from the control means. When the child OFF signal is given, the child actuator 130 is driven, and the driving causes the child lever 140 to swing clockwise in FIG. 25 about the child lever shaft 140X.

  When the child lever 140 is rotated clockwise in FIG. 25 about the child lever shaft 140X, as shown in FIG. 2, the child pin 150 that has been occupied in the non-interlocking position is disposed in the interlocking position. (Child unlock state).

  Even if the person riding in the vehicle operates the manual operation unit 144a to rotate the child lever 140 clockwise in FIG. 25 around the child lever shaft 140X, the child pin 150 is similarly applied. Can be arranged at the interlocking position.

  According to the door lock device 1 according to this embodiment, if the open lever 70 is arranged at the non-released position by operating the inside door handle IH and the child lock mechanism 7 is switched to the non-transmission state, the window glass is temporarily Even if the inside door handle IH is operated after breaking the door, the door D can be prevented from opening. Thereby, the anti-theft property of the vehicle can be remarkably improved. In addition, if the child lock mechanism 7 is switched to the transmission state, the operation of the inside door handle IH is effective even if the open lever 70 is disposed at the non-released position. 70 can be disposed at the transmission position, and the latch mechanism L in the latched state can be released by operating the inside door handle IH. Therefore, operability can be remarkably improved.

  Further, if the main inside door handle lever 80 and the inside door handle IH are directly linked by the inside door handle linking member 14 such as a wire or a link, the attitude of the inside door handle IH according to the position of the main inside door handle lever 80. Can be changed. If comprised in this way, it will become possible to discriminate | determine which state the open lever 70 is by the attitude | position of the inside door handle IH.

It is a conceptual diagram which shows the principal part of the door to which the door lock apparatus which is embodiment of this invention is applied. It is a front view of the door lock apparatus shown in FIG. It is explanatory drawing which shows the lock mechanism with which the door lock apparatus shown in FIG. 1 is provided, and a child lock mechanism. FIG. 2 is a side view of a vehicle to which the door lock device shown in FIG. 1 is applied. It is a perspective view at the time of seeing the door shown in FIG. 1 from the room inner side. FIG. 4 is a cross-sectional plan view of a main part of the vehicle shown in FIG. It is a principal part sectional top view of the door shown in FIG. It is explanatory drawing which shows operation | movement of the latch mechanism with which the door lock apparatus shown in FIG. 1 is provided. It is explanatory drawing which shows operation | movement of the latch mechanism with which the door lock apparatus shown in FIG. 1 is provided. It is explanatory drawing which shows operation | movement of the latch mechanism with which the door lock apparatus shown in FIG. 1 is provided. It is a front view of the outside door handle lever with which the door lock device shown in Drawing 1 is provided. It is a side view of the outside door handle lever shown to FIGS. It is sectional drawing of the arrow DD in FIG. It is a front view of the lock lever with which the door lock apparatus shown in FIG. 1 is provided. It is sectional drawing of arrow EE in FIG. It is a side view of the lock lever shown to FIGS. It is a front view of the link lever with which the door lock apparatus shown in FIG. 1 is provided. It is a top view of the link lever shown to FIGS. It is a bottom view of the link lever shown to FIGS. It is a side view of the link lever shown to FIGS. It is sectional drawing of arrow AA in FIGS. It is a front view of the open lever with which the door lock apparatus shown in FIG. 1 is provided. It is a top view of the open lever shown to FIGS. 13-1. It is a side view of the open lever shown to FIGS. It is explanatory drawing which shows the case where an outside door handle is operated to open the door in the door lock device shown in FIG. It is a front view of an inside door handle lever with which the door lock device shown in Drawing 1 is provided. It is a bottom view of the inside door handle lever shown to FIGS. It is a side view of the inside door handle lever shown to FIGS. It is sectional drawing of arrow CC in FIGS. It is a front view of the sub inside door handle lever with which the door lock device shown in Drawing 1 is provided. It is sectional drawing of arrow BB in FIGS. It is a front view of the connect lever with which the door lock apparatus shown in FIG. 1 is provided. It is explanatory drawing which shows the case where an inside door handle is operated to open the door in the door lock device shown in FIG. FIG. 3 is an explanatory diagram showing a lock state of a lock mechanism in the door lock device shown in FIG. FIG. 22 is an explanatory diagram showing a case where the outside door handle lever is operated to open the door in the door lock device shown in FIG. 21. FIG. 22 is an explanatory diagram showing a case where the inside door handle lever is unlocked in the door lock device shown in FIG. 21. It is a front view of the child lever with which the door lock apparatus shown in FIG. 1 is provided. It is a bottom view of the child lever shown to FIGS. 24-1. It is a side view of the child lever shown to FIGS. 24-1. In the door lock device shown in FIG. 2-2, it is explanatory drawing which shows the non-non-transmission state of a child lock mechanism. FIG. 26 is an explanatory diagram showing a case where the inside door handle lever is locked in the door lock device shown in FIG. 25.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door lock device 2 Latch 2x Latch shaft 3 Ratchet 3x Ratchet shaft 4 Outside door handle door operation transmission mechanism 5 Inside door handle door operation transmission mechanism 6 Lock mechanism 7 Child lock mechanism 10 Main body case 10a Open 11 Latch case 11a Strike Entry groove 13 Outside door handle linkage member 14 Inside door handle linkage member 15 Recess 17 Operation hole 20 Engagement groove 21 Hook portion 22 Locking portion 25 Second latch stopper 30 Engagement portion 31 Acting portion 35 Ratchet stopper 36 Connecting pin 38 Ratchet Lever 39 Abutting portion 40 Outside door handle lever 40X Outside door handle lever shaft 40x Axis 41 Outside door handle lever base 41a Outside door handle lever Hole 42 Outside door handle linkage end portion 43 Outside operation end portion 44 Outside pressure receiving portion 50 Lock lever 50X Lock lever shaft 50b Sensor pressing portion 50b1 Surface 50s Over center biasing spring 50x Shaft 51 Lock lever base 51a Lock lever shaft Hole 52 Spring linkage portion 52a Spring linkage pin 53 Link lever linkage portion 53a Link lever linkage pin 54 Worm wheel linkage portion 54a Intermittent driven gear 55 Sub-inside door handle lever linkage portion 55H Lever insertion groove 55a First contact wall 55b Second contact Contact wall 55c Connection wall 60 Link lever 60x Link lever shaft 60x Axis 61 Link lever base 61a Link lever shaft hole 62 Lock lever linkage 62a Connection hole 63 Contact wall 64 Latching pin 69 Connection tool (O Nreba axis, link lever shaft)
69a coupling tool body 69b engagement groove 69c coupling tool engaging claw 70 open lever 70 open lever shaft 70s open pulling 70x shaft center 71 open lever base 71a open lever shaft hole 72 spring latching portion 73 ratchet drive portion 74 link contact portion 75 Stopping piece 80 Inside door handle lever 80
80 Main Inside Door Handle Lever 80X Inside Door Handle Lever Shaft 80s Unlock Position Setting Spring 80x Shaft Center 81 Inside Door Handle Lever Base 81a Inside Door Handle Lever Shaft Hole 82 Inside Door Handle Linking Part 82a Bending Part 83 Sub Lever Linking Part 83H Pin Engagement hole 83a first hole 83b second hole 85 engagement wall 90 sub-inside door handle lever 90 main inside door handle lever 90 shaft center 91 sub-inside door handle lever base 91a sub-inside door handle lever shaft hole 92 92a Sub-pin engagement hole 93 Lock lever contact portion 100 Connect lever 100x Connect lever shaft 101 Connect lever base 101a Connect lever shaft hole 102 Pressure receiving portion 103 connect pressing portion 110 lock actuator 111 output shaft 112 worm gear 120 worm wheel 120s worm wheel initial state maintaining spring 120x worm wheel shaft 121 intermittent gear wheel 130 child actuator 131 output shaft 131x shaft center 132 worm gear 133 power child pin 140 child Lever 140X Child lever shaft 140x Axis center 141 Child lever base portion 141a Child lever shaft hole 142 Pin engagement portion 142a Pin engagement hole 143 Power child linkage portion 143a Second pin engagement hole 144 Manual operation lever holding portion 144a Manual operation portion 144b Through hole 145 Engagement wall 150 Child pin 151 Base portion 152 Mounting portion 153 Transmission portion 18 Engaging means 190 Inside door handle lever D Door DT Door trim DTa Operation opening IH Inside door handle IHX Inside door handle shaft IHa Inside door handle operation portion IHb Handle lever linkage end IHx Axis L Latch mechanism OH Outside door handle OHX Outside Door handle shaft

Claims (2)

A latch mechanism that is in a latched state when the door is disposed at a closed position with respect to the vehicle body, and restricts movement of the door in the opening direction;
An open lever that releases the latched state of the latch mechanism when moved in a predetermined release direction while being displaced to two different positions of the release position and the non-release position with respect to the latch mechanism;
An inside door handle lever that is displaced to three different positions according to the operation of the inside door handle;
A locking mechanism that is interposed between the inside door handle lever and the latch mechanism, and that displaces the open lever to the release position and the non-release position according to the operation of the inside door handle;
It is interposed between the inside door handle lever and the open lever and the lock mechanism, and has a child lock mechanism that can be switched between a transmission state and a non-transmission state,
The child lock mechanism
In the transmission state, when the inside door handle lever is arranged at the first position by operating the inside door handle, the open lever is arranged at the non-release position via the lock mechanism, and the inside door handle is operated by operating the inside door handle. When the lever is moved from the first position to the second position, the open lever is arranged at the release position via the lock mechanism, and when the inside door handle lever is moved to the third position by operating the inside door handle, the lever is opened. While moving the lever in the release direction,
In the non-transmission state, when the inside door handle lever is moved from the second position to the first position by operating the inside door handle, the open lever is disposed at the non-release position via the lock mechanism, and the inside door handle When the inside door handle lever is moved from the first position to the second position by the operation, the open lever is maintained at the non-released position, and the inside door handle lever is moved to the third position by the operation of the inside door handle. A door lock device characterized in that power to the open lever is not transmitted. The lock mechanism includes a lock lever that swings about the axis of the lock lever shaft and a drive source,
When the open lever is moved from the release position to the non-release position by swinging the lock lever by driving the drive source, the inside door handle lever is arranged from the second position to the first position, and When the open lever is moved from the non-release position to the release position by swinging the lock lever by the drive of the drive source, the lock lever and the lock lever are arranged so that the inside door handle lever is arranged from the first position to the second position. The door lock device according to claim 1, wherein an inside door handle lever is linked.

Images