JP4503055B2 - Door lock device - Google Patents

Description

  The present invention relates to a door lock device applied to a vehicle such as a four-wheeled vehicle, and in particular, when the door is disposed at a closed position with respect to the vehicle body, the door is latched to move the door in the opening direction. It is interposed between the latch mechanism to be controlled and the door handle to the latch mechanism, and when the door handle is opened in the unlocked state, this is transmitted to the latch mechanism to release the latched state and the door The door lock device is provided with a lock mechanism that maintains the latched state of the latch mechanism even when the door handle is opened when the door handle is opened. is there.

  2. Description of the Related Art Conventionally, as a door lock device applied to a vehicle, a device provided with a child lock mechanism is known in order to prevent mischief of children. This child lock mechanism is configured to be switchable between a transmission state in which the opening operation of the inside door handle is transmitted to the latch mechanism and a non-transmission state in which the opening operation of the inside door handle is not transmitted to the latch mechanism. .

  Further, there is a door lock device provided with a mechanism called a so-called one motion or double action (see, for example, Patent Document 1). These mechanisms are designed to switch the lock mechanism in the locked state to the unlocked state by opening the inside door handle without operating the lock operation member such as the sill knob. It is extremely effective in facilitating the process. 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. 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.

  As described above, in the door lock device including the child lock mechanism and the one-motion or double-action mechanism, when the child lock mechanism is in the transmission state, the door of the inside door handle is opened as described above. Since the lock mechanism can be switched from the locked state to the unlocked state and the latch mechanism can be released by operation, the operability can be improved. On the other hand, when the child lock mechanism is in a non-transmitting state, the first opening operation of the inside door handle switches the locking mechanism from the locked state to the unlocked state. The opening operation is not transmitted to the latch mechanism. Therefore, if the child lock mechanism is set to the non-transmitting state, even if a child in the vehicle mischief the inside door handle, the latch mechanism will not be released, so that safety during traveling is ensured.

US Pat. No. 6,010,165

  However, in the door lock device described above, the anti-theft property may be impaired. That is, when the child lock mechanism is in the transmission state, even if the lock mechanism is in the locked state, if the inside door handle is operated to open once or twice, it can be switched from the locked state to the unlocked state. Since the latch mechanism is released, for example, if a malicious object breaks the door glass and operates the inside door handle, it allows entry into the room. Even if the child lock mechanism is in a non-transmitting state, if the inside door handle is operated once, the locking mechanism switches from the locked state to the unlocked state, so that malicious ones break the door glass and After the door handle is operated once and the lock mechanism is unlocked, if the outside door handle is opened from outside the vehicle door, the latch mechanism is released from the latched state, allowing entry into the room. It will be. 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 anti-theft property of the vehicle.

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

In order to achieve the above object, the door lock device according to claim 1 of the present invention is in a latched state when the door is disposed at the closed position with respect to the vehicle body, and moves the door in the opening direction. Provided inside the main body case in such a manner as to be interposed between the latch mechanism to be regulated and the door handle to the latch mechanism, and this is transmitted to the latch mechanism when the door handle is opened in the unlocked state. A lock mechanism that releases the latched state and allows the door to move in the opening direction, and maintains the latched state of the latch mechanism even when the door handle is opened when the door is locked. The rear seat door locking device includes a lock actuator that switches the lock mechanism between a locked state and an unlocked state, and the lock mechanism is in the locked state. The double action mechanism that switches the lock mechanism from the locked state to the unlocked state without transmitting the opening operation of the inside door handle to the latch mechanism when the inside door handle disposed in the room is opened. A transmission state in which the door opening operation of the inside door handle is transmitted to the latch mechanism, a lock state, and a lock state , provided inside the main body case in a manner interposed between the inside door handle and the latch mechanism and the lock mechanism The door opening operation of the inside door handle can be switched between a non-transmission state that is not transmitted to the latch mechanism and the double action mechanism, and manual switching that enables switching between the transmission state and the non-transmission state And a child lock mechanism having an operation unit.

  In the door lock device of the present invention, when the door opening operation of the inside door handle disposed indoors is performed when the lock mechanism is in the locked state, the door opening device of the inside door handle is not transmitted to the latch mechanism. A double action mechanism for switching from the locked state to the unlocked state, a transmission state that is interposed between the inside door handle, the latch mechanism, and the lock mechanism, and that transmits the opening operation of the inside door handle to the latch mechanism, and the inside door handle The child lock mechanism is configured to be switchable to a non-transmission state in which the opening operation is not transmitted to the latch mechanism and the double action mechanism. Therefore, if the child lock mechanism is switched to the non-transmission state, the lock mechanism is not switched from the locked state to the unlocked state by the opening operation of the inside door handle. As a result, even if the inside door handle is operated after the door glass is broken, the door cannot be opened. Thereby, the anti-theft property of the vehicle can be remarkably improved. Moreover, if the child lock mechanism is switched to the transmission state, the operation of the inside door handle is effective, so that the lock mechanism is switched from the locked state to the unlocked state by the opening operation of the inside door handle, and is further in the latched state. It is possible to release the latch mechanism. Therefore, the operability can be improved while securing the anti-theft property of the vehicle.

  Exemplary embodiments of a door lock device according to the present invention will be explained below in detail with reference to the accompanying drawings.

  1 to 4 conceptually show a door lock device according to an embodiment of the present invention. The door lock device illustrated here is provided on a door D of a front hinge disposed on the right side of the rear seat in a vehicle main body B of a four-wheeled vehicle as shown in FIG. A latch mechanism 20 is provided inside a latch case 21 attached to the case 10.

  As shown in FIGS. 5 and 6, the latch mechanism 20 is for holding the striker S provided in the vehicle main body B so as to mesh, and as shown in FIG. 6, the latch mechanism 20 includes a latch 22 and a ratchet 23. It is.

  The latch 22 is disposed at a position above the striker entry groove 21a formed in the latch case 21 so as to be rotatable via a latch shaft 24 extending substantially horizontally along the front-rear direction of the vehicle body B. It is. The latch 22 is provided with a meshing groove 22a, a hook portion 22b, and a locking portion 22c. The meshing groove 22a is formed from the outer peripheral surface of the latch 22 toward the latch shaft 24, and has a width that can accommodate the striker S. The hook portion 22b is a portion located on the indoor side of the engagement groove 22a when the engagement groove 22a is opened downward. As shown by the solid line in FIG. 6, the hook portion 22b stops at a position crossing the striker entry groove 21a of the latch case 21 when the latch 22 is rotated counterclockwise as much as possible. As indicated by the dashed line, the latch 22 is configured to stop at a position where the striker entry groove 21a is opened when the latch 22 is rotated clockwise as much as possible. The locking portion 22c is a portion located on the outdoor side of the engagement groove 22a when the engagement groove 22a is opened downward. As shown by a two-dot chain line in FIG. 6, the locking portion 22c crosses the striker entry groove 21a when the latch 22 is rotated clockwise as much as possible, and is located behind the striker entry groove 21a (outdoor). ) In such a manner that it is gradually tilted upward toward. Although not clearly shown in the figure, a latch spring is provided between the latch 22 and the latch case 21 to urge the latch 22 in a clockwise direction in FIG.

  The ratchet 23 is located via a ratchet shaft 25 extending substantially horizontally along the front-rear direction of the vehicle body B at a position below the striker entry groove 21a of the latch case 21 and on the indoor side of the latch shaft 24. It is arranged to be rotatable. The ratchet 23 is provided with an engaging portion 23a and an action portion 23b. The engaging portion 23a is a portion extending radially outward from the ratchet shaft 25 toward the outdoor side, and is rotated about the ratchet shaft 25 to thereby engage the hook portion 22b of the latch 22 described above via its protruding end surface. It is possible to detachably engage with the locking portion 22c. The action part 23b is a part that extends radially outward from the ratchet shaft 25 toward the indoor side. The ratchet 23 is provided with a ratchet lever 26 that rotates around the axis of the ratchet shaft 25 together with the ratchet 23 at a position on the front side of the vehicle. The ratchet lever 26 has a contact portion 26 a extending from the ratchet shaft 25 in the same direction as the action portion 23 b of the ratchet 23. Although not clearly shown in the drawing, a ratchet spring is provided between the ratchet 23 and the latch case 21 to urge the ratchet 23 counterclockwise in FIG. 6 at all times.

  In the latch mechanism 20 configured as described above, when the door D is in an open state with respect to the vehicle main body B as shown by a two-dot chain line in FIG. 5, as shown by a two-dot chain line in FIG. The latch 22 is disposed at a position where the striker entry groove 21a is opened. When the door D is moved to the closed position from this state as shown by the solid line in FIG. 5, the striker S provided in the vehicle body B enters the striker entry groove 21a of the latch case 21 as shown in FIG. Eventually, the striker S comes into contact with the locking portion 22 c of the latch 22. As a result, the latch 22 rotates counterclockwise in FIG. 6 against the elastic force of the latch spring (not shown). During this time, the ratchet 23 is such that the protruding end surface of the engaging portion 23a is in sliding contact with the outer peripheral surface of the latch 22 by the elastic force of the ratchet spring (not shown), and the ratchet shaft 25 is appropriately selected according to the outer peripheral surface shape of the latch 22. Rotate around the axis. When the door D is further moved in the closing direction from the above-described state, the amount of the striker S entering the striker entry groove 21a gradually increases, eventually the engagement portion 23a of the ratchet 23 reaches the engagement groove 22a of the latch 22, and then As shown by the solid line in FIG. 6, since the hook portion 22b of the latch 22 comes into contact with the engaging portion 23a of the ratchet 23, the clock of the latch 22 is resisted against the elastic restoring force of a latch spring (not shown). Rotation around is prevented. In this state, since the hook portion 22b of the latch 22 is arranged so as to cross the striker entry groove 21a, the striker S is moved by the hook portion 22b in a direction away from the back (outdoor) of the striker entry groove 21a. As a result, the door D is kept closed with respect to the vehicle body B (latched state).

  On the other hand, when the contact portion 26a of the ratchet lever 26 is rotated upward in FIG. 6 against the elastic force of the ratchet spring (not shown) from the above-described latched state, the hook portion 22b of the latch 22 and the ratchet 23 are engaged. The contact engagement state with the joint portion 23a is released, and the latch 22 rotates clockwise in FIG. 6 by the elastic restoring force of a latch spring (not shown). As a result, as indicated by a two-dot chain line in FIG. 6, the striker entry groove 21a is opened, and the striker S can move in a direction to leave the striker entry groove 21a, and the door D is opened and moved relative to the vehicle body B. To be able to.

  Further, as shown in FIG. 1, the door lock device is provided with an open lever 11, an inside handle lever 12, and a lock mechanism 30 inside a main body case 10. In the following, the state shown in FIG. 1 will be described as the initial position of each component member.

  As shown in FIGS. 1 and 7, the open lever 11 is rotatably arranged via an open lever shaft 11 a extending substantially horizontally along the front-rear direction of the vehicle body B, and has an open action end portion. 11b, an open operation end portion 11c, and a pressure receiving portion 11d.

  As shown in FIG. 7, the open action end portion 11b is a portion extending in the radially outward direction (radial direction of a circle centering on the open lever shaft 11a) from the open lever shaft 11a toward the outdoor side. Although not clearly shown, the extended end portion projects out of the housing 10. An outside door handle linking means 11e such as a link that links the outside door handle ODH provided on the door D is connected to a portion of the open action end portion 11b that protrudes outside the housing 10. The open operation end portion 11 c is a portion extending radially outward from the open lever shaft 11 a toward the indoor side, and the extended end portion is a region below the contact portion 26 a of the ratchet lever 26 inside the housing 10. Is located. The pressure receiving portion 11d of the open lever 11 is a portion bent forward from the lower edge portion of the open lever 11, and is positioned below the open operation end portion 11c. The open lever 11 rotates via the outside door handle linking means 11e when the outside door handle ODH is operated to open, and the opening operation end portion 11c and the pressure receiving portion 11d operate upward in FIG. Although not shown in the figure, an open lever spring is provided between the open lever 11 and the body case 10 to urge the open operation end 11c and the pressure receiving portion 11d downward in FIG. 1 at all times. It is.

  As shown in FIG. 1, the inside handle lever 12 can swing around a portion that is in front of the vehicle from the open lever 11 via an inside lever shaft 15 that extends substantially horizontally along the left-right direction of the vehicle body B. It is arranged and is composed of two levers, a main inside handle lever 13 and a sub inside handle lever 14.

  As shown in FIG. 8A, the main inside handle lever 13 includes a main inside handle lever base portion 13a (hereinafter, referred to as “base portion 13a”), an inside door handle linkage portion 13b, and a sub lever linkage portion 13c. ing.

  The base portion 13a is formed with an inside lever shaft hole 13d for allowing the inside lever shaft 15 to pass through at the center thereof. The inside lever shaft hole 13d is a hole having an outer diameter through which the inside lever shaft 15 can be inserted.

  As shown in FIGS. 1, 8-1, and 8-2, the inside door handle linkage portion 13 b is a portion that extends downward from the inside lever shaft 15 (the inside lever shaft hole 13 d). The inside door handle linking part 13b is provided with a bent part 13e that is bent from the indoor side surface toward the indoor side at an intermediate part extending from the inside lever shaft hole 13d to its front end part. Through the opening formed in the main body case 10, the tip end (the portion below the bent portion 13 e) extends to the outside of the main body case 10. The distal end portion of the inside door handle linkage portion 13b is linked to the inside door handle IDH (see FIG. 5) through an appropriate link. The inside door handle linkage portion 13b is configured such that the main inside handle lever 13 swings clockwise in FIG. 1 when the inside door handle IDH is operated to open the door.

  The sub lever linking portion 13c is a portion extending from the vehicle rear side end portion of the base portion 13a toward the vehicle rear when the inside door handle linking portion 13b is disposed at the position shown in FIG. As shown in FIG. 8A, the sub-lever linking portion 13c has a child pin engaging hole 13f (hereinafter referred to as “pin engaging hole 13f” for short) for inserting a child pin 46 described later, A child pin pressing portion 13i is formed. The pin engagement hole 13f includes a first hole 13g extending in the radial direction of a circle centered on the inside lever shaft 15, and a second hole 13h extending in the circumferential direction of the circle centered on the inside lever shaft 15. In the first hole 13g, the second hole 13h extends from the inner end closest to the inside lever shaft 15. The child pin pressing portion 13i is a wide portion formed above the first hole 13g.

  The sub-inside handle lever 14 is used together with the main inside handle lever 13 when the inside door handle IDH is operated by a person in the vehicle interior when the lock mechanism described later is in the locked state and the child mechanism described below is in the transmission state. It is a lever that swings and transmits an opening operation of the inside door handle IDH to a lock mechanism that will be described later. The sub-inside handle lever 14 is provided in the main body case 10 so as to be able to swing around the axis of the inside lever shaft 15 in a manner of being superimposed on the main inside handle lever 13, and as shown in FIG. It has an inside handle lever base portion 14a (hereinafter referred to as “base portion 14a” for short), an inhan lever linking portion 14b and a sector lever abutting portion 14c extending bifurcated from the base portion 14a.

  The base portion 14a has an inside lever shaft hole 14d formed at the center thereof. The inside lever shaft hole 14d is a hole having an outer diameter through which the inside lever shaft 15 can be inserted.

  The inhan lever linking portion 14b is a portion in which the base portion 14a extends toward the vehicle rear side when the sub-inside handle lever 14 is disposed in the main body case 10 as shown in FIG. The inhan lever linking portion 14b is formed with a sub-pin engagement hole 14e which is a long hole for inserting a child pin 46 described later. The sub-pin engagement hole 14e is formed in the same shape and size as the first hole 13g of the main inside handle lever 13 described above, and the distance from the axis of the inside lever shaft 15 is also the first hole 13g. Is formed on the inhan lever linking portion 14b so as to be the same. As shown in FIG. 1, the end portion on the vehicle rear side in the sub-pin engagement hole 14 e with respect to the movement range when the child pin pressing portion 13 i of the main inside handle lever 13 moves around the inside lever shaft 15. Is included in the sub-pin engaging hole 14e so that the end portion on the vehicle front side deviates from the moving range of the child pin pressing portion 13i.

  Since the pin engagement hole 13f of the main inside handle lever 13 and the sub pin engagement hole 14e of the sub inside handle lever 14 are formed as described above, a child pin 46 described later is provided as shown in FIG. In a state where the vehicle rear end portion of the 1 hole 13g and the vehicle rear end portion of the sub-pin engagement hole 14e are disposed (a child lock mechanism to be described later is in a transmission state), the child pin 46 pushes the child pin of the main inside handle lever 13 It is arranged in the moving area of the part 13i. That is, this state is a state in which the main inside handle lever 13 and the sub inside handle lever 14 are connected by the child pin 46 so that the main inside handle lever 13 and the sub inside handle lever 14 can be interlocked. Accordingly, when the main inside handle lever 13 swings clockwise around the inside lever shaft 15 by opening the inside door handle IDH, the sub inside handle lever 14 is also turned clockwise. Will swing.

  On the other hand, as shown in FIG. 2, the child pin 46 is disposed at the vehicle front end portion of the first hole 13g and the vehicle front end portion of the sub pin engagement hole 14e (the child lock mechanism described later is in a non-transmitting state). ), The child pin 46 is disposed outside the moving range of the child pin pressing portion 13 i of the main inside handle lever 13. Therefore, even if the main inside handle lever 13 is swung clockwise around the inside lever shaft 15, the child pin is not pressed by the child pin pressing portion 13i. Therefore, the swing of the main inside handle lever 13 is not transmitted to the sub inside handle lever 14, and the sub inside handle lever 14 maintains the initial position. Here, the initial position is the position shown in FIG.

The lock mechanism 30 performs an unlocked state in which the rotation operation of the open lever 11 by the opening operation of the outside door handle ODH is transmitted to the latch mechanism 20 and the rotation operation of the open lever 11 by the opening operation of the outside door handle ODH. The worm wheel 31, the sector lever 32, the link lever 33 (double action mechanism), and the second link lever 39 (double action mechanism) are configured to be switched to a locked state that is not transmitted to the latch mechanism 20. Link lever 33 is attached to the second link lever 39, the second link lever 39 are allowed to linked to the sector lever 32. Therefore, in the following description the worm wheel Lumpur, sector lever, a second link lever, the order of the link lever.

  The worm wheel 31 is rotatably disposed via a wheel shaft 34 extending substantially horizontally along the left-right direction of the vehicle main body B at a position ahead of the inside handle lever 12 in the vehicle body B. (Lock actuator) 35 is engaged with a worm 36 fixed to the output shaft 35a of the 35. An intermittent gear wheel 37 is fixed to the worm wheel 31 on the same axis. The intermittent gear wheel 37 constitutes intermittent power transmission means only in one direction with respect to the intermittent driven gear 32d of the sector lever 32 described later. As shown in FIG. 16B, a neutral return spring 31a is provided between the worm wheel 31 and the main body case 10 to maintain the worm wheel 31 in a predetermined neutral state.

  The sector lever 32 is disposed at a position behind the worm wheel 31 at the rear of the vehicle so as to be rotatable via a sector lever shaft 38 extending substantially horizontally along the left-right direction of the vehicle main body B. It is formed with a sector-like portion that gradually expands toward the surface. As shown in FIG. 10A, the sector lever 32 includes a sector lever base portion 32a, a spring linkage pin 32b, a second link lever connection pin 32c, an intermittent driven gear 32d, and a sub-inside handle lever contact portion 32e. .

  The sector lever base portion 32a is formed with a sector lever shaft hole 32f for allowing the sector lever shaft 38 to pass therethrough in the center thereof. As shown in FIG. 10-2, the spring linking pin 32b is a projection that protrudes from the end surface on the outdoor side toward the outdoor side at the tip of the portion of the sector lever base portion 32a that extends to the vehicle rear side. Between the spring linking pin 32b and the body case 10, the unlocking position where the sector lever 32 swings counterclockwise around the axis of the sector lever shaft 38 as shown in FIG. As shown, an over-center biasing spring 71 that biases the sector lever 32 toward one of the locked positions where the sector lever 32 swings clockwise is provided. As shown in FIG. 10-2, the second link lever connecting pin 32c is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle body B from the outdoor side end surface of the lower part of the rear side of the sector lever base 32a. is there. The intermittent driven gear 32d is a gear formed on the outer peripheral surface of a portion extending from the vehicle front side end portion of the sector lever base portion 32a toward the vehicle front, and meshes with the intermittent gear wheel 37 of the worm wheel 31. . The sub-inside handle lever contact portion 32e is a portion protruding from the vehicle rear side edge portion of the sector lever base portion 32a toward the indoor side. The inside handle lever contact portion 32e is configured to contact the sector lever contact portion 14c when the sub inside handle lever 14 swings clockwise in FIG.

  Although not shown in the figure, the intermittent power transmission means configured between the intermittent driven gear 32d of the sector lever 32 and the intermittent gear wheel 37 of the worm wheel 31 rotates the worm wheel 31 in an arbitrary direction as appropriate. By doing so, the sector lever 32 can be swung in any direction, while there is no power transmission from the intermittent driven gear 32d to the intermittent gear wheel 37, and the sector lever 32 can be moved arbitrarily without rotating the worm wheel 31. It can be swung in the direction.

  The second link lever 39 is provided between the sector lever 32 and the link lever 33 as shown in FIG. 1, and the second link lever base 39a, the sector lever as shown in FIGS. 11-1 and 11-2. A linkage portion 39b, a contact wall 39c, a latch pin 39d, and a lock lever portion 39e are provided.

  A shaft hole 39f is formed at the center of the second link lever base 39a, and a connecting tool 61 is fitted into the shaft hole 39f by means such as press fitting. The open lever end 11 c of the open lever 40 is inserted and held in the engagement groove 62 of the coupler 72, whereby the open lever 11 and the second link lever 39 are linked via the coupler 61. That is, the second link lever 39 can swing around the axis of the connecting portion 61, and when the outside door handle ODH is operated to open, the opening operation end portion 11c and the pressure receiving portion 11d are illustrated. 2, the second link lever 39 also moves upward. On the other hand, when the opening operation of the outside door handle ODH is removed, the second link lever 39 is moved together with the opening operation end portion 11 c and the pressure receiving portion 11 d. The two link lever 39 is also moved downward.

  The sector lever linkage portion 39b is a portion extending upward from the second link lever base portion 32a. A connecting hole 39g, which is a slit-like opening extending in the vertical direction, is formed in the sector lever linking portion 39b. The connecting hole 39g is for inserting the second link lever connecting pin 32c of the sector lever 32 so as to be movable in the vertical direction.

  The contact wall 39c is a step portion between the second link lever base portion 39a and the sector lever linkage portion 39b, and protrudes from the indoor side surface toward the indoor side at the proximal end portion of the sector lever linkage portion 39b. Part. The abutting wall 39c is a wall that abuts on a second link lever abutting portion 33e of the link lever 33 described later. The latch pin 39d is formed so as to protrude from the end surface of the sector lever linking portion 39b to the outdoor side, and is for latching one end of a link lever spring 73 described later.

  The lock lever portion 39e is a portion obtained by extending the second link lever base portion 39a downward from the shaft hole 39f and then bending the end portion on the vehicle front side toward the indoor side. The lock lever portion 39e has an operation contact surface 39h on which a lock operation portion 42f of the child lever 42 described later contacts. The operation contact surface 39h is formed so as to be disposed in a slightly forward tilted posture in the unlocked state shown in FIG.

  As shown in FIG. 12, the link lever 33 is a lever member having a shaft hole 33b at the lower end portion of the link main body 33a. By attaching the above-described connection tool 61 to the shaft hole 33b, the link lever 33 is interposed. The second link lever 39 is attached. In the state where the connecting tool 61 is attached to the link lever 33, the connecting tool engaging claw 63 prevents the connecting tool 61 from being detached from the link lever 33. As shown in FIG. 1, in a state where the open operation end portion 11c of the open lever 11 is inserted and held in the engagement groove 62 of the coupler 61, the link lever 33 includes the above-described second link lever 39 and the open operation end portion. 11c and the pressure receiving portion 11d are supported so as to be movable up and down and swingable about an axis along the left-right direction of the vehicle main body B with respect to the open operation end portion 11c. The link lever 33 is provided with a spring locking portion 33c, a second link lever contact portion 33e, and a ratchet drive portion 33f.

  The spring locking portion 33c is protruded toward the vehicle rear side from the vehicle rear side end portion of the link body 33a, and the tip end portion is bent toward the outdoor side, and is then extended toward the vehicle rear side. Part. As shown in FIG. 1, a link lever spring 73 is engaged with the spring engaging portion 33c. One end of the link lever spring 73 is latched to the latch pin 39d of the second link lever 39 shown in FIG. 11A, and the other end is below the spring locking portion 33c as shown in FIG. The second link lever abutting portion 33e and the abutting wall 39c of the second link lever 39 are urged so that they are always abutted on each other. The second link lever contact portion 33e is a portion formed so as to bend toward the outdoor side after protruding from the side portion of the link main body 33a on the vehicle front side toward the vehicle front side. As described above, the second link lever contact portion 33e is in contact with the contact wall 39c of the second link lever 39 by the biasing force of the link lever spring 73. The ratchet drive part 33f is an abutting engagement part formed at the upper end part of the link main body 33a. The ratchet driving portion 33f is provided in a state in which the ratchet driving portion 33f is closely opposed to the lower end surface of the contact portion 26a of the ratchet lever 26 in the unlocked state shown in FIG.

  Further, the door lock device is provided with a child lock mechanism 40 inside the body case 10 as shown in FIG. The child lock mechanism 40 is interposed between the inside door handle IDH and the latch mechanism 20 and the lock mechanism 30 described above, and transmits a door opening operation of the inside door handle IDH to the latch mechanism 20, and the inside door handle IDH. The door opening operation can be switched to a non-transmission state in which the operation is not transmitted to the latch mechanism 20 and the double action mechanism (link lever 33 and second link lever 39), and the connect lever 41, child lever 42 and child pin 46 are configured. It has.

  As shown in FIGS. 1 and 13, the connect lever 41 is disposed so as to be swingable via a connect lever shaft 43 extending substantially horizontally along the left-right direction of the vehicle body B. A hole 41a, a connect pressure receiving portion 41b, and a connect pressing portion 41c are provided. The connect lever shaft hole 41a is formed in the center portion of the connect lever 41 and has an outer diameter through which the connect lever shaft 43 can be inserted. The connection pressure receiving portion 41b is a portion located on the front side of the vehicle with respect to the connect lever shaft hole 41a in a state where the connect lever 41 is disposed at the initial position as shown in FIG. As shown in FIG. 21, a child pin 46 that penetrates the first hole 13g of the main inside handle lever 13 and the sub pin engagement hole 14e of the sub inside handle lever 14 is formed at the upper side end of the connection pressure receiving portion 41b. Are in contact. As shown in FIG. 1, the connect pressing portion 41 c is a portion located on the vehicle rear side with respect to the connect lever shaft hole 41 a in a state where the connect lever 41 is disposed at the initial position, and is slightly downward toward the vehicle rear. After tilting, its end is extended upwards. The extending end portion of the connection pressing portion 41 c is disposed in the lower region of the pressure receiving portion 11 d in the open lever 11.

  As shown in FIG. 1, the child lever 42 draws an arc around an axis along the left-right direction of the vehicle main body B between the connect lever 41 and the main body case 10 so as to overlap the connect lever 41. It is disposed so as to be swingable and movable along the front-rear direction of the vehicle body B. As shown in FIGS. 14-1 and 14-2, the child lever 42 includes a child lever base portion 42a, a connect lever shaft slide hole 42b, a child pin engagement hole 42c, a child lever shaft engagement hole 42d, and a manual operation portion. 42e, a lock operation portion 42f, a return spring contact portion 42g, and a power child pin engagement hole 42h.

  The connect lever shaft slide hole 42b (hereinafter referred to as “slide hole 42b”) is a substantially triangular opening through which the connect lever shaft 43 of the connect lever 41 described above is inserted. As shown in FIG. 14A, the slide hole 42b includes an unlock portion 42i positioned above the slide hole 42b, and a child lock portion positioned below the unlock portion 42i and on the vehicle rear side in the slide hole 42a. 42j and an emergency lock portion 42k located below the unlock portion 42i and on the vehicle front side in the slide hole 42a. As shown in FIGS. 1, 2 and 3, the unlocking portion 42i, child lock portion 42j and emergency lock portion 42k are connected to the connecting lever shaft 43 when the connecting lever shaft 43 is moved in the slide hole 42b. Reference numeral 43 denotes an alternatively arranged portion.

  The child pin engagement hole 42c is a slit-shaped opening as shown in FIG. 14A, and is a hole through which a child pin 46 described later is inserted. The child pin engagement hole 42c is formed along the extending direction of the child lever 42 from the upper portion of the child lever 42 toward the front of the vehicle.

  The child lever shaft engaging hole 42d is a slit-shaped opening formed at a position in front of the vehicle relative to the connect lever shaft 43, and extends in the left-right direction of the vehicle main body B from a surface located on the indoor side in the main body case 10. It is a hole for inserting a child lever shaft 10b extending substantially horizontally. The child lever shaft engaging hole 42d is formed so that the child lever shaft 10b can move only along the extending direction of the child lever shaft engaging hole 42d.

  The manual operation portion 42e is a columnar portion that extends substantially horizontally along the left-right direction of the vehicle main body B from the end surface on the indoor side of the child lever 42 on the vehicle rear side. As shown in FIG. 16A, the manual operation portion 42e protrudes to the outside through an operation hole 10a provided in the main body case 10 and an operation opening DPO provided in the panel DP of the door D. The lever 42 can be swung so as to draw an arc around an axis along the left-right direction of the vehicle main body B, and can be moved and operated along the front-rear direction of the vehicle main body B. However, in the present embodiment, as shown in FIG. 5, the manual operation portion 42e is provided on the inner side 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. Yes. Further, as shown in FIG. 1, the operation hole 10a provided in the main body case 10 intersects the long hole along the front-rear direction of the vehicle main body B and the end of the long hole on the front side of the vehicle. It is a substantially L-shaped opening consisting of a long hole along an arc in a circle centered on the lever shaft 10 b, and defines the position of the manual operation portion 42 e in the child lever 42. As shown in FIG. 2, the position above the operation hole 10 a of the main body case 10 is the first position of the manual operation unit 42 e. From the state shown in FIG. 2, the position where the manual operation unit 42e is swung downward so as to draw an arc around the axial center of the vehicle body B in the left-right direction is as shown in FIG. 42e is the second position. From the state shown in FIG. 1, the manual operation unit 42e can further move toward the vehicle rear side to the position shown in FIG. As shown in FIG. 3, the position behind the vehicle in the operation hole 10 a of the main body case 10 is the third position of the manual operation unit 42 e.

  As shown in FIG. 14-2, the lock operation portion 42f is formed on a surface on the vehicle rear side at a portion where the portion located on the vehicle rear side with respect to the slide hole 42b in the child lever base portion 42a is bent toward the indoor side. It is formed. As shown in FIGS. 1 and 2, the lock operation portion 42 f is provided with the lock lever portion 39 e of the second link lever 39 described above when the manual operation portion 42 e of the child lever 42 is disposed at the second position and the first position. When the manual operation portion 42e of the child lever 42 is disposed at the third position as shown in FIG. 3, the operation contact surface 39h is contacted with the operation contact surface 39h. The second link lever 33 and the link lever 33 are in contact with each other and are rotated counterclockwise so that the lock mechanism 30 can be switched to the locked state.

  The return spring contact portion 42g is a portion in which the edge portion of the child lever shaft engaging hole 42d is provided so as to protrude toward the outdoor side. Further, as shown in FIG. 1, the power child pin engaging hole 42h is a slit-like opening formed at an end located on the lower side of the vehicle rear side in the child lever base 42a. This is a hole for insertion.

  Further, between the child lever 42 and the main body case 10, as shown in FIG. 1, the child lever 42 is disposed substantially horizontally along the left-right direction of the vehicle main body B from the surface located on the indoor side in the main body case 10. A return spring 45 that is always urged counterclockwise about the extending return spring shaft 10c is provided. The return spring 45 is disposed by supporting a locking portion (not shown) on the return spring shaft 10c described above, and has a spring action portion 45a. The spring acting portion 45a is a portion that presses the return spring contact portion 42g of the child lever 42 counterclockwise around the return spring shaft 10c by the elastic restoring force of the return spring 45.

  The child pin 46 is attached to the child lever 42 as shown in FIG. As shown in FIGS. 15A and 15B, the child pin 46 includes a base portion 46a, a first transmission portion 46b, and a second transmission portion 46c. As shown in FIG. 16B, the base portion 46a is a portion that is sandwiched between the child lever 42 and the sub-inside handle lever 14.

  As shown in FIGS. 15-2 and 16-2, the first transmission portion 46b is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle body B from the end surface located on the indoor side in the base portion 46a. is there. The child pin 46 is engaged with the pin engaging hole 13f and the sub pin engagement by inserting the sub pin engaging hole 14e of the sub inside handle lever 14 and the pin engaging hole 13f of the main inside handle lever 13 into the first transmission portion 46b. It can move along the extending direction of the joint hole 14e. As shown in FIGS. 1 and 3, the first transmission portion 46b is configured to press the child pin on the main inside handle lever 13 when the manual operation portion 42e of the child lever 42 is disposed at the second position and the third position. On the other hand, as shown in FIG. 2, when the manual operation part 42e of the child lever 42 is arranged at the first position as shown in FIG. 2, it is arranged outside the movement area of the child pin pressing part 13i.

  As shown in FIGS. 15-2 and 16-2, the second transmission portion 46c is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle body B from the end surface located on the outdoor side of the base portion 46a. is there. The second transmission portion 46 c passes through the child pin engagement hole 42 c of the child lever 42, and the protruding end portion reaches a position exceeding the outdoor side surface of the connection pressure receiving portion 41 b in the connection lever 41. As described above, when the first transmission portion 46b is disposed in the movement range of the child pin pressing portion 13i as shown in FIGS. 1 and 3, the second transmission portion 46c is configured to be connected to the main inside handle lever 13 and the sub inside handle. As the lever 14 rotates in the clockwise direction, the lever 14 moves along the child pin engaging hole 42c and presses the connect pressure receiving portion 41b downward. On the other hand, when the first transmission part 46b is arranged outside the movement range of the child pin pressing part 13i as shown in FIG. 2, the first transmission part 46b is not pressed by the child pin pressing part 13i. It does not work with the main inside handle lever 13. Hereinafter, the position of the child pin 46 when the first transmission portion 46b is arranged in the movement range of the child pin pressing portion 13i is referred to as “interlocking position”, and the first transmission portion 46b is outside the movement range of the child pin pressing portion 13i. The position of the child pin 46 when arranged is referred to as a “non-interlocking position”.

  Further, as shown in FIG. 1, a power child pin 51 is inserted into the power child pin engaging hole 42h of the child lever 42. The power child pin 51 is a columnar protrusion that extends radially outward from the axis of the output shaft 53 a of the electric motor 53. The power child pin 51 is configured to be movable along the extending direction of the worm 54 when the worm 54 fixed to the output shaft 53 a of the electric motor 53 rotates.

  In the lock mechanism 30 configured as described above, the state shown in FIG. 1 is an unlocked state, and the ratchet drive unit 33f of the link lever 33 is disposed vertically above the shaft hole 33b. The ratchet lever 26 is in close proximity to the lower end surface of the contact portion 26a. Therefore, from this state, when a person getting into the vehicle opens the outside door handle ODH, the link main body 33a of the link lever 33 is moved upward by the rotation of the open lever 11, and the ratchet drive unit 33f is latched by the latch mechanism 20. The abutting portion 26a of the ratchet lever 26 is abutted and moved upward. As a result, even when the latch mechanism 20 is in the latched state, this is released, so that the door D can be opened and moved with respect to the vehicle body B.

  When the worm wheel 31 is rotated counterclockwise by driving the electric motor 35 from the unlocked state shown in FIG. 1, the sector lever 32 swings clockwise about the sector lever shaft 38. . As a result, the link lever 33 swings counterclockwise around the shaft hole 33b together with the second link lever 39 engaged via the second link lever connecting pin 32c. Therefore, the lock mechanism 30 is in the locked state shown in FIG.

  In this locked state, the ratchet driving portion 33f deviates from the position facing the lower end surface of the abutting portion 26a of the ratchet lever 26, so that the outside door handle ODH is opened and the link lever is rotated by the rotation of the open lever 11. Even when the link body 33a of the 33 is moved up, the ratchet driving portion 33f does not come into contact with the contact portion 26a of the ratchet lever 26 in the latch mechanism 20. As a result, when the latch mechanism 20 is in the latched state, this is maintained, so that the door D is maintained at the closed position with respect to the vehicle body B.

  When the electric motor 35 is driven from the locked state shown in FIG. 17 and the worm wheel 31 is rotated clockwise, the sector lever 32 swings counterclockwise around the sector lever shaft 38. As a result, the link lever 33 swings clockwise around the shaft hole 33b together with the second link lever 39 engaged with the sector lever 32 via the second link lever connecting pin 32c. Therefore, the lock mechanism 30 returns to the unlocked state shown in FIG.

  Further, in the child lock mechanism 40 configured as described above, the state shown in FIGS. 1 and 21 is the transmission state, and the first transmission portion 46 b of the child pin 46 is connected to the pin engagement hole of the main inside handle lever 13. In 13f, it arrange | positions in the movement area of the child pin press part 13i. From this state, when a person in the vehicle interior opens the inside door handle IDH, the main inside handle lever 13 and the sub inside handle lever 14 swing in a clockwise direction. As the first transmission portion 46b is pressed by the child pin pressing portion 13i, the second transmission portion 46c presses the connect pressure receiving portion 41b of the connect lever 41 downward. As a result, the connect lever 41 swings counterclockwise in FIGS. 1 and 21 and the connect pressing portion 41c moves upward, so that the link lever 33 also moves upward via the pressure receiving portion 11d of the open lever 11. become. Therefore, when the lock mechanism 30 is in the unlocked state, the link lever 33 comes into contact with the contact portion 26a of the ratchet lever 26 in the latch mechanism 20, and the latched state can be released. That is, the door D can be opened and moved by the opening operation of the inside door handle IDH.

  On the other hand, the manual operation portion 42e of the child lever 42 is swung upward from the second position shown in FIGS. 1 and 21 so as to draw an arc around an axis along the left-right direction of the vehicle body B, When moved to the first position shown in FIGS. 2 and 22, the child lever 42 swings counterclockwise about the child lever shaft 10b in FIGS. 1 and 21, and the connect lever shaft 43 is moved to the child lock portion 42j. Will be placed. In this state, the child lock mechanism 40 is in a non-transmitting state. In this non-transmission state, the first transmission portion 46 b of the child pin 46 is disposed outside the moving range of the child pin pressing portion 13 i in the main inside handle lever 13. Therefore, even if the main inside handle lever 13 swings clockwise by opening the inside door handle IDH, the child pin 46 remains in the non-interlocking position. Accordingly, since the connection pressure receiving portion 41b of the connect lever 41 is not pressed by the second transmission portion 46c of the child pin 46, the connect lever 41 does not swing. As a result, the door D cannot be opened and moved by the opening operation of the inside door handle IDH. Further, when the child lock mechanism 40 is in the non-transmitting state, the main inside handle lever 13 and the sub inside handle lever 14 are not connected by the child pin 46. Accordingly, when the inside door handle IDH is operated to open, only the main inside handle lever 13 of the inside handle lever 12 swings clockwise, and the sub inside handle lever 14 does not interlock with this, and the initial state is established. Keep position.

  Further, the manual operation portion 42d of the child lever 42 is moved from the second position shown in FIGS. 1 and 21 toward the vehicle rear side against the elastic restoring force of the return spring 45, and FIGS. If it moves to the 3rd position shown, the child lever 42 will move to the vehicle rear side, and the connection lever axis | shaft 43 will be arrange | positioned to the emergency lock part 42k. When the child lever 42 moves to the vehicle rear side, the lock lever portion 39e of the second link lever 39 is pressed by the lock operation portion 42f of the child lever 42. As a result, the link lever 33 rotates together with the second link lever 39 counterclockwise, so that the lock mechanism 30 is locked. In this locked state, the ratchet driving portion 33f deviates from the position facing the lower end surface of the abutting portion 26a of the ratchet lever 26, so that the outside door handle ODH is operated to open and the link is performed by the rotation operation of the open lever 11. Even when the link main body 33 a of the lever 33 is moved upward, the ratchet driving portion 33 f does not contact the contact portion 26 a of the ratchet lever 26 in the latch mechanism 20. As a result, when the latch mechanism 20 is in the latched state, this is maintained, so that the door D is maintained at the closed position with respect to the vehicle body B.

  When the operation force of the manual operation portion 42e in the child lever 42 is removed from the state shown in FIGS. 3 and 23, the child lever 42 moves toward the vehicle front side by the elastic restoring force of the return spring 45, and FIG. The state shown in FIG. When the child lever 42 is moved to the position shown in FIGS. 4 and 24, the connect lever shaft 43 is again arranged in the unlock portion 42i, and the manual operation portion 42e of the child lever 42 is moved to the second position.

  Next, the operation of the double action mechanism will be described. As shown in FIG. 24, when the lock mechanism 30 is in the locked state and the child lock mechanism 40 is in the transmission state, the first transmission portion 46 b of the child pin 46 is the movement range of the child pin pressing portion 13 i in the main inside handle lever 13. Placed in. From this state, when the inside door handle IDH is opened by a person inside the vehicle, the main inside handle lever 13 and the sub inside handle lever 14 swing in a clockwise direction in conjunction with each other. At this time, the child pin pressing portion 13i moves the child pin 46 downward, and the sector lever abutting portion 14c abuts on the sub-inside handle lever abutting portion 32e of the sector lever 32, which is moved backward in the vehicle. The state is as shown in FIG. This state will be described in detail. When the child pin 46 moves downward along the child pin engaging hole 42c of the child lever 42, the connect pressure receiving portion 41b of the connect lever 41 is pressed, and the connect lever 41 swings counterclockwise in FIGS. Then, since the connection pressing portion 41 c moves upward, the link lever 33 moves upward via the pressure receiving portion 11 d of the open lever 11. On the other hand, when the sub-inside handle lever contact portion 32e moves to the rear of the vehicle, the sector lever 32 swings counterclockwise in FIGS. 4 and 24, and the second link lever connecting pin 32c moves to the rear of the vehicle. The second link lever 39 also swings clockwise in FIGS. At this time, as shown in FIG. 18, the ratchet driving portion 33f of the link lever 33 comes into contact with the contact portion 26a of the ratchet lever 26 from the front side of the vehicle. Against the elastic restoring force, the contact state of the link lever 33 with the second link lever contact portion 33e is released, swings clockwise in FIGS. 4 and 24, and the state shown in FIG. 18 is obtained.

  When the opening operation force of the inside door handle IDH is removed from this state, the link lever 33 causes the second link lever abutting portion 33e to be again brought into contact with the abutting wall of the second link lever 39 by the elastic restoring force of the link lever spring 73. The moving end 11c and the pressure receiving portion 11d of the open lever 11 are moved downward by the elastic restoring force of the open lever spring (not shown). When the operating end portion 11c and the pressure receiving portion 11d move downward, the connect pressing portion 41c of the connect lever 41 is moved downward via the pressure receiving portion 11d of the open lever 11, as shown in FIG. On the other hand, when the second link lever abutting portion 33e of the link lever 33 moves so as to abut on the abutting wall 39c of the second link lever 39, the ratchet driving portion 33f of the link lever 33 is moved into the shaft hole as shown in FIG. Since the ratchet driving portion 33f is disposed in close proximity to the lower end surface of the contact portion 26a of the ratchet lever 26, the lock mechanism 30 is unlocked. In this state, when the inside door handle IDH is opened by a person in the vehicle interior, the first transmission portion 46b of the child pin 46 is pressed by the child pin pressing portion 13i, and the child pin 46 moves downward. To do. At this time, the connection pressure receiving portion 41b is pressed by the second transmission portion 46c of the child pin 46, so that the connect lever 41 swings counterclockwise in FIG. 19 and the connect pressing portion 41c moves upward. The link lever 33 is also moved upward via the pressure receiving portion 11d of the lever 11. Accordingly, as shown in FIG. 20, the ratchet driving portion 33f comes into contact with the contact portion 26a of the ratchet lever 26 in the latch mechanism 20, and the latched state can be released. That is, the door D can be opened and moved by the opening operation of the inside door handle IDH. The above is the operation of the double action mechanism.

  2 and 22, when the electric motor 35 is driven when the child lock mechanism 40 is in the non-transmitting state and the lock mechanism 30 is in the unlocked state, as shown in FIG. 25, the lock mechanism 30 is in the locked state. Become. As described above, when the child lock mechanism 40 is in the non-transmitting state, the child pin 46 is disposed at the non-interlocking position. Therefore, from this state, when the inside door handle IDH is opened by a person inside the vehicle, only the main inside handle lever 13 swings clockwise as shown in FIG. On the other hand, the sub-inside handle lever 14 does not interlock with the main inside handle lever 13 and remains in the initial position. Accordingly, the sector lever abutting portion 14c of the sub inside handle lever 13 does not abut on the sub inside handle lever abutting portion 32e of the sector lever 32, so that the sector lever 32 does not swing counterclockwise. For this reason, the second link lever link lever 33 and the link lever 33 coupled via the second link lever connecting pin 32c of the sector lever 32 do not swing. That is, the opening operation of the inside door handle IDH is not transmitted to the double action mechanism. Therefore, the lock mechanism 30 is maintained in the locked state.

  In FIG. 26, in the state where the child pin 46 is disposed at the non-interlocking position, the first transmission portion 46b of the child pin 46 is not pressed by the child pin pressing portion 13i, so that the connect lever 41 swings counterclockwise. Without staying in the initial position. Therefore, the swing of the connect lever 41 is not transmitted to the pressure receiving portion 11d of the open lever 11, and the link lever 33 does not move up. Therefore, this is not released when the latch mechanism 20 is in the latched state.

  As described above, in the door lock device of the present embodiment, the door opening operation of the inside door handle IDH is performed when the door opening operation of the inside door handle IDH disposed in the room is performed while the lock mechanism 30 is in the locked state. , A double action mechanism (link lever 33 and second link lever 39) for switching the lock mechanism 30 from the locked state to the unlocked state without transmitting it to the latch mechanism 20, the inside door handle IDH, the latch mechanism 20, and the lock mechanism 30. Between the transmission state in which the opening operation of the inside door handle IDH is transmitted to the latch mechanism 20 and the non-transmission state in which the opening operation of the inside door handle IDH is not transmitted to the latch mechanism 20 and the double action mechanism. A structure including a child lock mechanism 40 that can be configured. And the. That is, in the present embodiment, the inside handle lever 12 is composed of two levers, that is, the main inside handle lever 13 and the sub inside handle lever 14, and the opening operation of the inside door handle IDH is performed when the child lock mechanism 40 is in the non-transmitting state. In this case, the sub-inside handle lever 14 is not interlocked with the main inside handle lever 13. For this reason, the sector lever abutting portion 14c of the sub inside handle lever 14 does not abut on the sub inside handle lever abutting portion 32e of the sector lever 32 and is coupled via the second link lever connecting pin 32c of the sector lever 32. The second link lever 39 and the link lever 33 also do not swing. Therefore, when the lock mechanism 30 is in the locked state, the locked state is maintained. As a result, even if the door glass is broken and the inside door handle IDH is operated, if the child lock mechanism 40 is switched to the non-transmitting state, the locking mechanism cannot be switched from the locked state to the unlocked state. Thereafter, even if the outside door handle ODH is opened, the latch state of the latch mechanism 20 is not released. Thereby, the anti-theft property of the vehicle can be remarkably improved.

  Further, if the child lock mechanism 40 is switched to the transmission state, the operation of the inside door handle IDH is effective. Therefore, the lock mechanism 30 is changed from the locked state to the unlocked state by the first opening operation of the inside door handle IDH. The latch mechanism 20 in the latched state can be released by the second opening operation of the inside door handle IDH. Therefore, the operability can be improved while securing the anti-theft property of the vehicle.

  Furthermore, in the door lock device according to the present embodiment, the door D is opened when the electric motor 35 is not driven due to a failure of the electric motor 35 or a charging voltage of a battery (not shown) being lowered. The manual operation unit 42e is moved from the second position shown in FIGS. 1 and 21 to the vehicle front side against the elastic restoring force of the return spring 45 from the state, and is moved to the third position shown in FIGS. It ’s fine. When the manual operation portion 42e is operated in this way, the child lever 42 moves toward the vehicle rear side in FIGS. 1 and 21, and the connection lever shaft 43 is disposed in the emergency lock portion 42k. At this time, the second link lever 39 and the link lever 33 are swung via the lock operation part 42f, and the lock mechanism 30 is switched to the locked state shown in FIGS. Further, although the child lever 42 is moved by the action of the return spring 45 described above, the lock mechanism 30 once locked is maintained in the locked state, and the vehicle is secured. can do. Therefore, even if the above-mentioned state occurs when the indoor lock operation member is omitted, the vehicle can be secured. In addition, the direction in which the manual operation part 42e of the child lever 42 is moved from the second position to the third position intersects the direction in which the manual operation part 42e of the child lever 42 is moved from the first position to the second position. Therefore, there is no possibility that the manual operation unit 42d is erroneously operated to the third position while the manual operation unit 42d is operated from the first position to the second position.

  Note that the transition from the transmission state to the non-transmission state of the child lock mechanism 40 is not necessarily performed by operating the manual operation unit 42e, and the electric motor 53 is driven during normal use from the state illustrated in FIG. Also good. When the electric motor 53 is driven, the power child pin 51 moves forward of the vehicle along the extending direction of the worm 54 via the output shaft 53 a and the worm 54. Thereby, the child lever 42 is arrange | positioned in a 1st position, and the child lock mechanism 40 will be in a non-transmission state.

  As described above, the door lock device according to the present invention is useful for a door lock device applied to a vehicle such as a four-wheeled vehicle, and is particularly suitable for a door lock device considering anti-theft performance.

It is the conceptual diagram which showed the door lock apparatus which is embodiment of this invention. It is a conceptual diagram at the time of making a child lock mechanism into a non-transmission state in the door lock device shown in FIG. It is a conceptual diagram at the time of moving the manual operation part of a child lever to the 3rd position in the door lock device shown in FIG. It is a conceptual diagram which shows the state which removed the operating force of the manual operation part in a child lever from the state shown in FIG. It is a principal part cross-sectional top view of the vehicle to which the door lock apparatus shown in FIG. 1 is applied. It is a conceptual diagram of the latch mechanism applied to the door lock apparatus shown in FIG. It is a front view of the open lever applied to the door lock apparatus shown in FIG. It is a front view of the main inside handle lever applied to the door lock device shown in FIG. It is C arrow line view of the main inside handle lever shown to FIGS. It is a front view of the sub inside handle lever applied to the door lock device shown in FIG. It is a front view of the sector lever applied to the door lock device shown in FIG. It is a D arrow line view of the sector lever shown to FIGS. It is a front view of the 2nd link lever applied to the door lock apparatus shown in FIG. It is E arrow line view of the 2nd link lever shown to FIGS. 11-1. It is a front view of the link lever applied to the door lock apparatus shown in FIG. It is a front view of the connect lever applied to the door lock apparatus shown in FIG. It is a conceptual diagram of the child lever applied to the door lock apparatus shown in FIG. It is F arrow line view of the child lever shown to FIGS. 14-1. It is a conceptual diagram of the child pin applied to the door lock apparatus shown in FIG. It is a G arrow line view of the child pin shown to FIGS. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is a conceptual diagram at the time of making a lock mechanism into a locked state in the door lock device shown in FIG. It is a conceptual diagram which shows the state which opened the inside door handle in the state shown in FIG. It is a conceptual diagram which shows the state which removed the operating force of the inside door handle from the state shown in FIG. FIG. 20 is a conceptual diagram illustrating a state where the inside door handle is operated to open in the state illustrated in FIG. 19. It is a principal part expansion conceptual diagram of the door lock apparatus shown in FIG. It is a principal part expansion conceptual diagram of the door lock apparatus shown in FIG. It is a principal part expansion conceptual diagram of the door lock apparatus shown in FIG. It is a principal part expansion conceptual diagram of the door lock apparatus shown in FIG. It is a conceptual diagram at the time of making a child lock mechanism into a non-transmission state and making a lock mechanism into a locked state in the door lock device shown in FIG. FIG. 26 is a conceptual diagram illustrating a state where the inside door handle is operated to open in the state illustrated in FIG. 25.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main body case 10a Operation hole 10b Child lever shaft 10c Return spring shaft 11 Open lever 11a Open lever shaft 11b Open action end 11c Open operation end 11d Pressure receiving portion 26 Ratchet lever 26a Contact portion 30 Lock mechanism 31 Warm wheel 32 Sector lever 32a Sector lever base part 32b Spring linkage pin 32c Second link lever connection pin 32d Intermittent driven gear 32e Sub-inside handle lever contact part 33 Link lever 33a Link body 33b Mounting hole 33c Spring locking part 33d Latching piece 33e Second link lever Contact portion 33f Ratchet drive portion 34 Wheel shaft 35 Electric motor 35a Output shaft 36 Worm 37 Intermittent gear wheel 38 Sector lever shaft 39 Second link lever 3 a second link lever base portion 39b sector lever linkage portion 39c contact wall 39d latch pin 39e lock lever portion 40 child lock mechanism 41 connect lever 41a connect lever shaft hole 41b connect pressure receiving portion 41c connect pressing portion 42 child lever 42a child lever base portion 42b Slide hole 42c Child pin engagement hole 42d Child lever shaft engagement hole 42e Manual operation part 42f Lock operation part 42g Return spring contact part 42h Power child pin engagement hole 42i Unlock part 42j Child lock part 42k Emergency lock part 43 connect lever shaft 45 return spring 46 child pin 46a base portion 46b first transmission portion 46c second transmission portion 61 connector 62 engagement groove 63 connector engagement claw 71 with over center Spring 73 link lever spring B vehicle body D door DP door panel DPO door panel opening IDH inside door handle ODH outside door handle S striker

Claims (1)

When the door is disposed at the closed position with respect to the vehicle main body, the latch mechanism is in a latched state and restricts the movement of the door in the opening direction, and is interposed between the door handle and the latch mechanism. Provided inside the body case, when the door handle is opened in the unlocked state, this is transmitted to the latch mechanism to release the latched state and allow the door to move in the opening direction, while in the locked state In this case, the rear seat includes a lock mechanism that maintains the latched state of the latch mechanism even when the door handle is opened, and a lock actuator that switches the lock mechanism between a locked state and an unlocked state. Door lock device for
When the inside of the indoor door handle disposed in the room is opened while the lock mechanism is in the locked state, the lock mechanism is released from the locked state without transmitting the inside door handle open operation to the latch mechanism. A double action mechanism to switch to the locked state;
Provided inside the main body case in a mode of being interposed between the inside door handle and the latch mechanism and the lock mechanism, and transmitting the inside door handle opening operation to the latch mechanism, and the inside in the locked state A manual operation unit configured to be able to switch a door opening operation to a non-transmission state that is not transmitted to the latch mechanism and the double action mechanism, and to switch between the transmission state and the non-transmission state A child lock mechanism having
A door lock device comprising:

Images