JP2009235756A - Door lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve antitheft properties without causing increase in size. <P>SOLUTION: This door lock device comprises: an inside handle lever 17, and first and second link levers 32 and 33, which switch a lock mechanism 30 to an unlocked state by swinging a sector lever 31 in a locking position to an unlocking one, without transmitting the following door opening operation to a latch mechanism 20, when an inside door handle D2 is operated for the opening of a door in the locked state of the lock mechanism 30; and a double lock lever 61 which is provided with a block portion 61d constituted in such a manner as to be linearly movable between unset and set positions by driving an electric motor 63 and arranged in the swing range of the sector lever 31 when moving to the set position, and which inhibits the sector lever 31 in the locking position from swinging to the unlocking position via the block portion 61d. <P>COPYRIGHT: (C)2010,JPO&INPIT

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 possible to switch between the unlocked state and the locked state depending on the position of the latch mechanism that regulates and the position of the sector lever that swings around the axis of the sector lever shaft from the door handle to the latch mechanism When the sector lever is placed in the unlocked position, the door is unlocked, and the door handle opening operation is transmitted to the latch mechanism to release the latched state, while the sector lever is placed in the locked position. The present invention relates to a door lock device including a lock mechanism that is in a locked state and invalidates a door handle opening operation and maintains a latched state of the latch mechanism.

  In recent years, in order to improve operability, a door lock device configured with a double action mechanism has been provided. The double action mechanism is 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 a sill knob disposed in the vehicle interior. is there. According to this type of door lock device, when the inside door handle is opened once when the lock mechanism is in the locked state, the sector lever in the locked position swings to the unlocked position to enter the unlocked state. The latch mechanism is released by opening the inside door handle. Therefore, the unlocking operation of the lock mechanism can be facilitated, and the operability can be improved (for example, see Patent Document 1).

Japanese Patent No. 3588453

  However, in the conventional door lock device, the anti-theft property may be impaired. That is, if the inside door handle is opened once, the lock mechanism in the locked state is switched to the unlocked state. For example, a malicious object can destroy the window glass and open the inside door handle twice. Would allow entry into the room.

  Such a problem is, for example, a structure in which the shaft member can be swung around the shaft center between the unset position and the set position, and has a block portion that is disposed in the swing region of the sector lever when swung to the set position. This can be solved by providing a double lock member that prevents the sector lever in the locked position from swinging to the unlocked position via the block portion. In this way, if the double lock member is in the set position, even if the window glass is broken, it becomes difficult to switch the lock mechanism in the locked state to the unlocked state. Can be improved. However, in the door lock device provided with the double lock member, it is necessary to provide an occupied space in the swinging area of the double lock member, which may increase the size of the door lock device. Furthermore, since the occupied space provided in the swinging area of the double lock member increases in proportion to the distance from the shaft member to the block portion, there is a possibility that the size of the door lock device may be increased depending on the design layout.

  An object of this invention is to provide the door lock apparatus which can aim at the improvement of anti-theft property, without causing the situation which enlarges in view of the said situation.

  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. Can be switched between unlocked and locked states according to the position of the latch mechanism that regulates and the position of the sector lever that swings between the door handle and the latch mechanism and swings around the axis of the sector lever shaft When the sector lever is disposed at the unlock position, the door is unlocked, and the door handle opening operation is transmitted to the latch mechanism to release the latch state, while the sector lever is at the lock position. A lock mechanism that is in a locked state when disposed on the door, and that disables the door opening operation of the door handle and maintains the latched state of the latch mechanism. When the inside door handle disposed in the room is operated to open when the lock mechanism is in the unlocked state, the door opening operation is transmitted to the latch mechanism, while the inside door is in the locked state. When the handle is operated to open the door, the door is not transmitted to the latch mechanism, and the sector lever at the lock position is swung to the unlock position to switch the lock mechanism to the unlock state. The action mechanism and a drive source are driven to linearly move between the unset position and the set position, and when moved to the set position, there is a block portion arranged in the swinging area of the sector lever. The sector lever in the locked position swings to the unlocked position through this block portion. Characterized in that a double-lock member for locking.

  According to the present invention, the drive unit is driven to linearly move between the unset position and the set position, and the block portion disposed in the swinging area of the sector lever when moved to the set position is provided. And a double lock member that prevents the sector lever in the locked position from swinging to the unlocked position through the block portion. Therefore, if the double lock member is in the set position, the sector lever is prevented from swinging through the block portion even if the inside door handle is operated to open. Therefore, even if the inside door handle is operated after the window glass is broken, the lock mechanism in the locked state is not switched to the unlocked state. Thereby, the anti-theft property of the vehicle can be improved. In addition, since the double lock member is configured to move linearly between the unset position and the set position, the double lock member is configured to swing around the axis of the shaft member between the unset position and the set position. Compared with the case where it does, the occupation space of a double lock member can be made small. Therefore, a situation in which the door lock device becomes large is not caused.

  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 and 2 show a door lock device according to an embodiment of the present invention, and FIG. 3 shows a state where a sub case is removed from the door lock device shown in FIG. The door lock device illustrated here is provided on the side door of the front hinge arranged on the right side of the front seat of a four-wheeled vehicle (the door D on the driver's seat side in the case of a right-hand drive vehicle). 3 is provided.

  The main case 2 and the sub case 3 are each formed by molding a synthetic resin material, for example, and are joined to each other and then fastened together by fastening means (not shown) such as screws to form the housing 10. Yes. It should be noted that a packing material (not shown) is interposed at the joint between the main case 2 and the sub case 3 to ensure desired water tightness.

  The housing 10 constituted by the main case 2 and the sub case 3 includes a latch mechanism accommodating portion 11 extending along the left-right direction of the door D so as to extend along the end surface of the door D located on the vehicle rear side, and the latch A lock mechanism accommodating portion 12 extending along the front-rear direction of the door D so as to extend from the end located on the indoor side of the mechanism accommodating portion 11 to the inner surface located on the indoor side of the door D is viewed from above. The case is almost L-shaped.

  The latch mechanism accommodating portion 11 of the housing 10 has a striker intrusion groove 13 extending substantially horizontally from the indoor side toward the outdoor side at a position substantially at the center in the height direction. Housed inside.

  As shown in FIG. 4, the latch mechanism 20 is configured to mesh and hold the striker S provided on the vehicle body side of the four-wheeled vehicle, and includes a latch 22 and a ratchet 23.

  The latch 22 is rotatably disposed via a latch shaft 24 extending substantially horizontally along the front-rear direction of the vehicle main body at a position above the striker intrusion groove 13 of the latch mechanism housing portion 11. is there. 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 in FIG. 4A, the hook portion 22b stops at a position where the striker entry groove 13 is opened when the latch 22 is rotated clockwise about the axis of the latch shaft 24 as much as possible. On the other hand, as shown in FIG. 4B, the hook portion 22b stops at a position crossing the striker intrusion groove 13 when the latch 22 is rotated counterclockwise as much as possible around the axis of the latch shaft 24. It is configured.

  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 in FIG. 4A, the locking portion 22c crosses the striker entry groove 13 when the latch 22 is rotated clockwise about the axis of the latch shaft 24 as much as possible. It is comprised so that it may stop in the state which inclines gradually upwards toward the back (outdoor side). Although not explicitly shown in the drawing, a latch spring is provided between the latch 22 and the latch mechanism accommodating portion 11 to urge the latch 22 clockwise around the axis of the latch shaft 24 in FIG. It is provided.

  The ratchet 23 is interposed via a ratchet shaft 25 extending substantially horizontally along the front-rear direction of the vehicle body at a position below the striker entry groove 13 of the latch mechanism housing portion 11 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 rotates around the axis of the ratchet shaft 25 to thereby hook the latch 22 described above via its protruding end surface. It is possible to detachably engage with the portion 22b and the locking portion 22c. The action part 23b is a part that extends radially outward from the ratchet shaft 25 toward the indoor side.

  Further, as shown in FIG. 3, the ratchet 23 is provided with a ratchet lever 26 that rotates integrally with 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 explicitly shown in the drawing, a ratchet that constantly urges the ratchet 23 around the axis of the ratchet shaft 25 counterclockwise in FIG. 4 between the ratchet 23 and the latch mechanism housing portion 11. A spring is provided.

  In the latch mechanism 20 configured as described above, when the door D is in an open state with respect to the vehicle body, the latch 22 is disposed at an open position where the striker entry groove 13 is opened as shown in FIG. It will be. When the door D is moved to the closed position from this state, the striker S provided on the vehicle body side enters the striker entry groove 13 of the latch mechanism housing portion 11, and the striker S eventually contacts the locking portion 22 c of the latch 22. Will be in touch. As a result, the latch 22 rotates counterclockwise around the axis of the latch shaft 24 in FIG. 4 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 intrusion groove 13 gradually increases, eventually the engagement portion 23a of the ratchet 23 reaches the engagement groove 22a of the latch 22, and then As shown in FIG. 4B, since the hook portion 22b of the latch 22 comes into contact with the engaging portion 23a of the ratchet 23, the latch 22 rotates clockwise against the elastic restoring force of a latch spring (not shown). Will be prevented from rotating. In this state, since the hook portion 22b of the latch 22 is disposed at the latch position across the striker entry groove 13, the striker S is moved by the hook portion 22b in a direction away from the back (outside of the striker entry groove 13). The situation is prevented, and eventually the door D is kept closed with respect to the vehicle body (latched state).

  On the other hand, when the contact portion 26a of the ratchet lever 26 is rotated upward around the axis of the ratchet shaft 25 in FIG. 4 against the elastic force of the ratchet spring (not shown) from the latched state described above, the latch 22 The abutting engagement state between the hook portion 22b and the engaging portion 23a of the ratchet 23 is released, and the latch 22 rotates clockwise in FIG. 4 by the elastic restoring force of a latch spring (not shown). As a result, as shown in FIG. 4A, the striker intrusion groove 13 is opened, and the striker S can be moved in a direction away from the striker intrusion groove 13, and the door D can be opened and moved with respect to the vehicle body. It becomes like this.

  Further, as shown in FIG. 1, the latch mechanism accommodating portion 11 of the housing 10 is provided with a cover plate 14 that covers the vehicle rear side of the latch mechanism accommodating portion 11. The cover plate 14 has a notch hole 14a and a screw hole 14b. The notch hole 14a is a hole provided in such a manner that the striker entry groove 13 of the latch mechanism accommodating portion 11 is exposed to the outside from the notch hole 14a. The screw holes 14b are holes for fixing the housing 10 to the door D via the latch mechanism 20, and a plurality (three locations in FIG. 1) are provided.

  As shown in FIGS. 1 to 3, the lock mechanism accommodating portion 12 of the housing 10 accommodates an open lever 16, an inside handle lever (double action mechanism) 17, a sector lever 31, and a lock mechanism 30.

  The open lever 16 is disposed at a position further below the ratchet 23 of the latch mechanism 20 via an open lever shaft 18 that extends substantially horizontally along the longitudinal direction of the vehicle body. And an open action end portion 16a, an open operation end portion 16b, and a pressure receiving portion 16c.

  The open action end portion 16 a of the open lever 16 is a portion extending from the open lever shaft 18 toward the outdoor side, and the extended end portion protrudes to the outside of the housing 10. An outside linking means OC such as a link linking the outside door handle D1 disposed on the outer surface of the door D is connected to a portion of the open action end portion 16a that protrudes outside the housing 10. is there. More specifically, when the outside door handle D1 is opened, the open lever 16 rotates clockwise around the axis of the open lever shaft 18 in FIG. 1, and the open operation end portion 16b and the pressure receiving portion 16c are In FIG. 3, the outside linking means OC is connected so as to operate upward. The open operation end portion 16 b of the open lever 16 is a portion extending from the open lever shaft 18 toward the indoor side, and is disposed in a region below the contact portion 26 a of the ratchet lever 26. The pressure receiving portion 16c of the open lever 16 is a portion located below the open operation end portion 16b and bent from the lower edge portion of the open lever 16 toward the front of the vehicle. Although not shown in the drawing, the open lever 16 is always attached counterclockwise around the axis of the open lever shaft 18 in FIG. 1 between the open lever 16 and the lock mechanism housing portion 12. An open lever spring is provided.

  The inside handle lever 17 is disposed at a position behind the open lever 16 so as to be swingable via an inside lever shaft 19 extending substantially horizontally along the left-right direction of the vehicle body. As shown in FIG. 5A and FIG. 5B, it has an inside action end portion 17a, an inside operation end portion 17b, a lock linkage portion 17c, an open linkage portion 17d, and an inside lever shaft hole 17e.

  The inside action end portion 17a is a portion that gradually inclines forward from the inside lever shaft 19 toward the lower side, and the extension end portion is exposed to the outside through an opening 3a provided in the sub case 3 ( (See FIG. 2). An inside linkage means IC such as a link or a cable linked to the inside door handle D2 disposed in the vehicle interior is connected to a portion of the inside action end portion 17a exposed to the outside of the housing 10. More specifically, the inside linking means IC is connected so that the inside handle lever 17 rotates clockwise around the axis of the inside lever shaft 19 in FIG. 3 when the inside door handle D2 is opened. . The inside operation end portion 17b is a portion bent toward the outdoor side after protruding toward the vehicle front side from the end surface located on the vehicle front side of the inside action end portion 17a. The lock linkage portion 17c is a portion extending downward from the inside operation end portion 17b. The open linkage portion 17d is a portion of the inside operation end portion 17b that is bent toward the rear of the vehicle from a position outside the lock linkage portion 17c. As is apparent from FIG. 3, the pressure receiving portion in the open lever 16 It is provided so as to face and oppose the lower end surface of 16c. The inside lever shaft hole 17 e is a hole through which the inside lever shaft 19 is inserted.

  The sector lever 31 is disposed at a position ahead of the vehicle from the open lever 16 so as to be swingable via a sector lever shaft 34 extending substantially horizontally along the left-right direction of the vehicle body. It is formed with a sector-like portion that gradually expands toward the surface. As shown in FIGS. 6-1, 6-2, and 6-3, the sector lever 31 has a transmission end 31a, an operation end 31b, and a sector lever shaft hole 31c.

  The transmission end 31a is a portion extending upward from the sector lever shaft 34, and has a block protrusion 31e and a connecting pin 31f. The block protrusion 31e is a portion protruding from the upper end edge toward the indoor side in the transmission end 31a. The connection pin 31f is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle main body from an end surface located on the indoor side of a portion that is below the block protrusion 31e in the transmission end 31a.

  The operation end portion 31b is a substantially fan-shaped portion in which a portion extending from the sector lever shaft 34 toward the front of the vehicle and a portion extending downward from the sector lever shaft 34 are formed integrally. A portion 31g, an accommodating wall 31h, a key operation pin 31j, and a latch pin 31n are provided. The gear portion 31g is a gear formed on the outer peripheral surface having an arc shape of the operation end portion 31b, and meshes with a worm 36 fixed to the output shaft 35a of the electric motor 35 (see FIG. 3). The housing wall 31h is a portion configured in a manner of projecting toward the indoor side at the operation end 31b. The housing wall 31h includes a spring operation groove 31k that is curved so as to open toward the rear of the vehicle in the housing wall 31h, and a shaft center of the sector lever shaft 34 that is located below the spring operation groove 31k in the housing wall 31h. The pin operation groove 31m is curved so as to open in the counterclockwise direction. The key operation pin 31j is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle main body from an end surface located on the outdoor side of the operation end 31b. The latch pin 31n is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle body from the end surface located on the outdoor side of the lower part of the operation end 31b, and is latched on the extended end. A stopper 31p having an outer diameter larger than that of the pin 31n is formed. The sector lever shaft hole 31c is a hole through which the sector lever shaft 34 is inserted.

  The lock mechanism 30 is in an unlocked state in which the rotation operation of the open lever 16 by the opening operation of the outside door handle D1 according to the position of the sector lever 31 is transmitted to the latch mechanism 20, and the opening operation of the outside door handle D1. The first lever (double action mechanism) 32 and the second link lever (double action mechanism) 33 are provided. Yes.

  As shown in FIGS. 7A and 7B, the first link lever 32 is a lever member in which a connector 32g is mounted at the approximate center of the link body 32a. The connector 32g includes a cylindrical connector body 32h mounted on a connection hole (not shown) of the link body 32a via an outer peripheral surface, a mounting hole 32j provided inside the connector body 32h, It has a pair of mounting claws 32k formed so as to protrude radially outward from the peripheral surface of the end located on the indoor side of the tool body 32h. The first link lever 32 can move up and down together with the open operation end portion 16b and the pressure receiving portion 16c by inserting and holding the open operation end portion 16b of the open lever 16 in the mounting hole 32j of the connector 32g (see FIG. 3). In addition, it is supported so as to be swingable about an axis along the left-right direction of the vehicle body with respect to the open operation end 16b. Further, the first link lever 32 is provided with a spring accommodating groove 32b, a sector connecting portion 32c, and a lever abutting portion 32d. The spring accommodating groove 32b is a substantially annular groove formed in a manner of surrounding the connector main body 32h of the connector 32g at a portion on the indoor side in the link main body 32a. The sector connecting portion 32c is a portion extending forwardly from a portion on the vehicle front side in the link main body 32a in FIG. 3, and has a connecting groove 32e. The connecting groove 32e is a slit-shaped opening formed along the extending direction of the sector connecting portion 32c. As is apparent from FIG. 3, the connecting pin 31f of the sector lever 31 can be moved therein. Mating support. The lever abutting portion 32d is a portion that protrudes toward the vehicle rear side from the portion on the vehicle rear side in the link main body 32a and then bends toward the indoor side.

  As shown in FIG. 3, the second link lever 33 overlaps the link body 32a of the first link lever 32 between the first link lever 32 and the sub case 3 via a connector 32g. The lever member is disposed so as to be swingable about an axis along the left-right direction. The second link lever 33 is configured to be movable up and down together with a coupling tool 32g attached to the first link lever 32. Further, as shown in FIGS. 8A and 8B, the second link lever 33 is provided with a ratchet driving portion 33b, a latching portion 33c, and a connector main body hole 33d in the lever main body 33a. The ratchet drive portion 33b is a portion that extends upward from the upper portion of the lever main body 33a and then bends and extends toward the indoor side. The ratchet driving portion 33b is an abutting engagement portion formed on the lever main body 33a. When the ratchet driving portion 33b is disposed vertically above the coupling tool 32g attached to the first link lever 32 (see FIG. 18), the ratchet lever 26 is provided. It is comprised so that it may closely adjoin with respect to the lower end surface of the contact part 26a. The latching portion 33c is a portion that extends toward the vehicle rear side from a portion on the vehicle rear side in the lever main body 33a. As apparent from FIG. 3, the lower end surface of the latching portion 33 c is in contact with the upper end surface of the lever contact portion 32 d of the first link lever 32. The connector main body hole 33d is a hole through which the connector main body 32h of the connector 32g attached to the first link lever 32 is inserted.

  When the second link lever 33 is disposed, the second link lever 33 is provided in a mounting groove 32m (see FIG. 7-2) formed by the link main body 32a, the connector main body 32h, and the pair of mounting claws 32k of the first link lever 32. By fitting the edge of the connector main body hole 33d, the drop-off is prevented.

  As shown in FIG. 3, an overcenter spring 37 is provided in the lower part of the sector lever 31, and a lock switch 38 is provided in the upper part of the sector lever 31. The overcenter spring 37 holds the sector lever 31 around the axis of the sector lever shaft 34 via the latch pin 31n. Specifically, as shown in FIG. 18, the sector lever 31 is pivoted clockwise as much as possible around the axis of the sector lever shaft 34 (unlock position), and as shown in FIG. The sector lever 31 is held at one of the positions (lock position) where the lever 31 is swung counterclockwise as much as possible around the axis of the sector lever shaft 34. The lock switch 38 detects whether or not the sector lever 31 is in the locked position in accordance with the contact state of the block protrusion 31e of the sector lever 31 with respect to the detection piece 38a.

  Further, between the first link lever 32 and the second link lever 33, as shown in FIGS. 3 and 13, a lever contact portion 32d of the link main body 32a and a latching portion 33c of the lever main body 33a are always provided. A panic spring 39 is provided to urge the contact so as to abut. The panic spring 39 is supported by the connector main body 32h of the connector 32g attached to the first link lever 32 described above, and is accommodated in the spring accommodating groove 32b.

  In the lock mechanism 30 configured as described above, the state shown in FIG. 18 is the unlocked state, the sector lever 31 is disposed at the unlocked position, and the ratchet driving portion 33b of the second link lever 33 is the first. The ratchet driving portion 33b is close to and opposed to the lower end surface of the abutting portion 26a of the ratchet lever 26 because it is disposed vertically above the coupling tool 32g attached to the link lever 32. Therefore, if the outside door handle D1 is opened from this state and the link main body 32a of the first link lever 32 is moved upward by the rotation of the open lever 16, the ratchet driving portion 33b of the second link lever 33 is latched. The abutting portion 26a of the ratchet lever 26 in the mechanism 20 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.

  When the worm 36 is appropriately rotated in an arbitrary direction by driving the electric motor 35 from the unlocked state shown in FIG. 18, the sector lever 31 swings counterclockwise about the sector lever shaft 34. As a result, in the lock mechanism 30, the first link lever 32 engaged through the connecting pin 31f and the second link lever 33 that contacts the lever contact portion 32d swing counterclockwise about the mounting hole 32j. Then, the locked state shown in FIG.

  In this locked state, the sector lever 31 is disposed at the locked position, and the ratchet driving portion 33b of the second link lever 33 deviates from the position facing the lower end surface of the abutting portion 26a of the ratchet lever 26. Even when the door handle D1 is operated to open the door and the link main body 32a of the first link lever 32 is moved upward by the rotation of the open lever 16, the ratchet driving portion 33b is brought into contact with the contact portion 26a of the ratchet lever 26 in the latch mechanism 20. Will not abut. As a result, the door opening operation of the outside door handle D1 is invalidated, and this is maintained when the latch mechanism 20 is in the latched state, so that the door D is maintained in the closed position with respect to the vehicle body. Become.

  When the worm 36 is appropriately rotated in an arbitrary direction by driving the electric motor 35 from the locked state shown in FIG. 3, the sector lever 31 swings clockwise around the sector lever shaft 34. As a result, in the lock mechanism 30, the first link lever 32 engaged through the connecting pin 31f and the second link lever 33 biased by the panic spring 39 swing clockwise about the mounting hole 32j, Again, the unlocked state shown in FIG. 18 is restored.

  Further, as shown in FIG. 3, the door lock device includes a lock lever 41 that operates when a lock knob D <b> 3 disposed in the vehicle interior is locked inside the lock mechanism housing portion 12.

  As shown in FIG. 3, the lock lever 41 is disposed between the sector lever 31 and the sub case 3 so as to be swingable via a sector lever shaft 34 in an overlapping manner with the sector lever 31. As shown in FIG. 9A and FIG. 9B, it has a spring linking part 41a, a locking action end part 41b, a locking operation pin 41c, and a sector lever shaft hole 41d.

  The spring linkage portion 41a is a portion that extends downward from the sector lever shaft 34 in FIG. 3 and then bends and extends toward the outdoor side. The lock action end portion 41b is a portion that extends downward from an end portion located on the outdoor side of the spring linkage portion 41a, and the extension end portion is exposed to the outside through the opening 3a provided in the sub case 3. (See FIG. 2). A lock linking means LC such as a link or a cable linked to the lock knob D3 disposed in the vehicle interior is connected to a portion of the lock action end 41b exposed to the outside of the housing 10. More specifically, the lock lever 41 is locked so as to swing counterclockwise around the axis of the sector lever shaft 34 in FIG. Linking means LC is connected. The lock operation pin 41c is a columnar protrusion that extends substantially horizontally from the end face located on the outdoor side of the lock action end portion 41b along the left-right direction of the vehicle body. As shown in FIG. 18, the lock operation pin 41c is disposed in the pin operation groove 31m of the housing wall 31h formed in the sector lever 31, and the lock lever 41 is arranged around the axis of the sector lever shaft 34 in FIG. When swinging counterclockwise, the housing wall 31h that forms the back (downward in FIG. 18) of the pin operation groove 31m is pressed. The sector lever shaft hole 41d is a hole through which the sector lever shaft 34 is inserted.

  In addition, an inside abutting surface 41e is provided on the locking action end portion 41b. As shown in FIG. 3, the inside contact surface 41 e gradually moves toward the rear of the vehicle as it goes upward from the lower end surface of the lock action end 41 b when the lock action end 41 b is arranged in the lower region of the sector lever shaft 34. It is comprised so that it may incline and extend. When the lock mechanism 30 is in the locked state, the inside abutting surface 41e is rocked when the lock linkage portion 17c of the inside handle lever 17 described above swings around the inside lever shaft 19, as shown in FIG. On the other hand, when the lock mechanism 30 is in the unlocked state, the lock mechanism 30 is arranged at a position separated from the lock linkage portion 17c as shown in FIG.

  In the present embodiment, the lock knob D3 is arranged so as to be able to appear and retract in the vehicle interior, and only when the lock mechanism 30 is in the unlocked state, the lock knob D3 protrudes into the vehicle interior and can be locked. It is comprised so that it may become.

  Further, between the lock lever 41 and the sector lever 31, as shown in FIGS. 3 and 15, the spring linking portion 41 a of the lock lever 41 and the housing wall 31 h of the sector lever 31 should be operated integrally. Further, a linkage spring 42 is provided that is constantly biased clockwise around the sector lever shaft 34. The linkage spring 42 is disposed via the sector lever shaft 34 of the sector lever 31 described above, and has a spring action portion 42a. The spring action portion 42a is a portion disposed in the spring operation groove portion 31k of the housing wall 31h formed in the sector lever 31 and forms the upper portion (see FIG. 3) of the spring operation groove portion 31k by the elastic restoring force of the linkage spring 42. The housing wall 31h is configured to be pressed clockwise around the sector lever shaft 34. The spring acting portion 42a has a biasing force that biases the housing wall 31h forming the upper part of the spring operation groove 31k (see FIG. 3) in the sector lever 31 clockwise around the axis of the sector lever shaft 34. The over center spring 37 is configured to be smaller than the holding force for holding the sector lever 31 in the locked position around the axis of the sector lever shaft 34.

  Here, shifting the locking mechanism 30 in the unlocked state shown in FIG. 18 to the locked state shown in FIG. 3 is not necessarily performed by driving the electric motor 35 but also by locking the lock knob D3. can do. That is, when the lock lever 41 is swung counterclockwise around the axis of the sector lever shaft 34 by the lock operation of the lock knob D3 from the unlocked state shown in FIG. 18, the lock operation pin 41c is the pin of the sector lever 31. The accommodation wall 31h that forms the back (downward in FIG. 18) of the operation groove 31m is pressed. When the lock operation pin 41c of the lock lever 41 presses the receiving wall 31h forming the depth of the pin operation groove 31m of the sector lever 31, the sector lever 31 rotates the worm 36 appropriately and rotates counterclockwise around the sector lever shaft 34. Will swing. As a result, the sector lever 31 is disposed at the lock position, and the lock mechanism 30 includes the first link lever 32 and the second link lever 33 that are in contact with the lever contact portion 32d that are engaged via the connecting pin 31f. Oscillates counterclockwise around the center and enters the locked state shown in FIG.

  By the way, when the inside door handle D2 is operated to open from the unlocked state shown in FIG. 18, the open link portion 17d of the inside handle lever 17 moves upward, so the first link lever via the pressure receiving portion 16c of the open lever 16 32 and the second link lever 33 are also moved upward. Therefore, the second 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 D2.

  On the other hand, in the locked state shown in FIG. 3, the inside contact surface 41 e provided at the lock action end portion 41 b of the lock lever 41 is disposed in the swinging region of the lock linkage portion 17 c in the inside handle lever 17. When the inside door handle D2 is opened from this state, the first link lever 32 and the second link lever 33 are moved upward by the movement of the open linkage portion 17d in the inside handle lever 17, and the lock linkage portion 17c. Comes into contact with the inside contact surface 41e of the lock lever 41, and the lock lever 41 is swung clockwise around the axis of the sector lever shaft. Once the opening operation of the inside door handle D2 is performed, the lock lever 41 swings from the state shown in FIG. 3 to the state shown in FIG. 20 through the state shown in FIG. Hereinafter, this operation will be described in detail.

  When the open linkage portion 17d of the inside handle lever 17 moves upward, the first link lever 32 and the second link lever 33 also move up via the pressure receiving portion 16c of the open lever 16, as shown in FIG. . On the other hand, when the lock lever 41 swings clockwise around the axis of the sector lever shaft 34, the linkage spring 42 is appropriately elastically deformed via the spring linkage portion 41a to increase the urging force of the linkage spring 42. The spring action portion 42a further presses the housing wall 31h forming the upper part (see FIG. 3) of the spring operation groove portion 31k of the sector lever 31 toward the clockwise direction around the sector lever shaft 34. Become. When the spring acting portion 42 a of the linkage spring 42 further presses the housing wall 31 h that forms the upper part of the spring operating groove portion 31 k of the sector lever 31, and the pressing force exceeds the holding force that holds the locking position of the overcenter spring 37. As shown in FIG. 19, the sector lever 31 is linked to the lock lever 41 and swings clockwise around the sector lever shaft 34 integrally with the lock lever 41. As the sector lever 31 swings, the connecting pin 31f moves toward the rear of the vehicle, so that the first link lever 32 also swings clockwise in FIG.

  When the open linkage portion 17d of the inside handle lever 17 further moves upward from the state shown in FIG. 19, the first link lever 32 and the second link lever are interposed via the pressure receiving portion 16c of the open lever 16, as shown in FIG. 33 will also move up. On the other hand, when the lock lever 41 further swings clockwise around the axis of the sector lever shaft 34 from the state shown in FIG. 19, the sector lever 31 linked via the linkage spring 42 is integrated with the lock lever 41. The worm 36 is further rotated around the sector lever shaft 34 as appropriate, and is further swung clockwise to be disposed at the unlock position. As the sector lever 31 is further swung, the connecting pin 31f moves rearward of the vehicle, so that the first link lever 32 is further swung clockwise in FIG. At this time, as shown in FIG. 20, the ratchet drive portion 33b of the second link lever 33 comes into contact with the contact portion 26a of the ratchet lever 26 from the front side of the vehicle. The contact state with the latching portion 33c is released against the elastic restoring force of 39, and swings clockwise in FIG.

  When the opening operation force of the inside door handle D2 is removed from the state shown in FIG. 20, the open lever 16 moves down the open operation end portion 16b and the pressure receiving portion 16c by the elastic restoring force of the open lever spring (not shown). At the same time, the first link lever 32 and the second link lever 33 also move downward. When the open operation end portion 16b and the pressure receiving portion 16c move downward, as shown in FIG. 18, the lower end surface of the pressure receiving portion 16c is again arranged so as to be close to and opposed to the open linkage portion 17d of the inside handle lever 17. become. On the other hand, when the first link lever 32 and the second link lever 33 move downward, the contact state between the ratchet drive portion 33b of the second link lever 33 and the contact portion 26a of the ratchet lever 26 is eventually reached as shown in FIG. Is released, and the second link lever 33 moves so that the latching portion 33 c again comes into contact with the lever contact portion 32 d of the first link lever 32 by the elastic restoring force of the panic spring 39. Then, as the second link lever 33 moves, the ratchet driving portion 33b of the second link lever 33 is disposed vertically above the connector 32g attached to the first link lever 32 as shown in FIG. The ratchet driving portion 33b comes close to and faces the lower end surface of the abutting portion 26a of the ratchet lever 26, and the lock mechanism 30 is unlocked.

  In the state shown in FIG. 18, when the inside door handle D <b> 2 is operated to open the door, the open linkage portion 17 d of the inside handle lever 17 moves upward, so that the first link lever 32 and the first link lever 32 via the pressure receiving portion 16 c of the open lever 16 The second link lever 33 will also move up. At this time, the inside contact surface 41e provided on the lock operation end 41b of the lock lever 41 is disposed at a position separated from the lock linkage portion 17c in the inside handle lever 17, and the lock linkage portion 17c. Will not abut. Therefore, the second 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 an opening operation of the inside door handle D2 (so-called double action mechanism).

  By the way, as shown in FIG. 20, the state in which the ratchet driving portion 33b of the second link lever 33 is in contact with the contact portion 26a of the ratchet lever 26 is, for example, in the locked state shown in FIG. This may occur when the door opening operation is performed and the electric motor 35 is driven to switch the lock mechanism 30 to the unlocked state. In the locked state shown in FIG. 3, when the outside door handle D1 is opened, the ratchet driving portion 33b of the second link lever 33 opens without moving the contact portion 26a of the ratchet lever 26 in the latch mechanism 20 upward. The first link lever 32 and the second link lever 33 are moved upward by the rotation of the lever 16. In this state, when the electric motor 35 is driven and the worm 36 is appropriately rotated in an arbitrary direction, the sector lever 31 swings clockwise around the sector lever shaft 34. As the sector lever 31 swings, the connecting pin 31f moves toward the rear of the vehicle, so that the first link lever 32 also swings clockwise in FIG. At this time, the ratchet driving portion 33b of the second link lever 33 comes into contact with the contact portion 26a of the ratchet lever 26 from the front side of the vehicle, so that the first link lever 32 resists the elastic restoring force of the panic spring 39. Then, the contact state with the latching portion 33c is released, and the state shown in FIG. 20 is obtained.

  In this state, when the opening operation force of the outside door handle D1 is removed, the open lever 16 moves down the open operation end portion 16b and the pressure receiving portion 16c by the elastic restoring force of the open lever spring (not shown). At the same time, the first link lever 32 and the second link lever 33 also move downward. When the first link lever 32 and the second link lever 33 move downward, the contact state between the ratchet drive portion 33b of the second link lever 33 and the contact portion 26a of the ratchet lever 26 is eventually released as shown in FIG. Then, the second link lever 33 moves so that the latching portion 33 c again comes into contact with the lever contact portion 32 d of the first link lever 32 by the elastic restoring force of the panic spring 39. Then, as the second link lever 33 moves, the ratchet driving portion 33b of the second link lever 33 is disposed vertically above the connector 32g attached to the first link lever 32 as shown in FIG. The ratchet driving portion 33b comes close to and faces the lower end surface of the abutting portion 26a of the ratchet lever 26, and the lock mechanism 30 is unlocked.

  If the outside door handle D1 is opened again from the state shown in FIG. 18 and the link main body 32a of the first link lever 32 is moved upward by the rotation of the open lever 16, the ratchet drive portion 33b of the second link lever 33 Is brought into contact with the contact portion 26a of the ratchet lever 26 in the latch mechanism 20 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.

  Further, as shown in FIG. 3, the door lock device includes a key lever 51 that operates when a key cylinder KC disposed on the door D is operated in the lock mechanism housing portion 12, and the key lever 51 includes It is provided with a key link 52 that operates when it is operated and switches the lock mechanism 30 in the locked state to the unlocked state or switches the lock mechanism 30 in the unlocked state to the locked state.

  As shown in FIG. 3, the key lever 51 is disposed at a position further above the latch 22 of the latch mechanism 20. When the key cylinder KC disposed on the door D is operated by key operation, An input shaft portion 51a is provided as an input portion to which rotational driving force is input. This key lever 51 is formed by fitting a convex portion (not shown) provided in the sub case 3 to a turning concave portion 51b that is recessed so as to open toward the indoor side in the input shaft portion 51a. It is supported so as to be rotatable about an axis along the left-right direction. Connected to the input shaft portion 51a is a cylinder linkage means CC such as a link or a cable for transmitting a rotational driving force when the key cylinder KC is operated by key operation (see FIG. 1). More specifically, when the key cylinder KC is unlocked, the key lever 51 rotates clockwise around the axis of the rotating recess 51b in FIG. 3, while when the key cylinder KC is locked, the key lever 51 rotates. The cylinder linking means CC is connected so that 51 rotates counterclockwise around the axis of the rotation recess 51b in FIG. Further, as shown in FIGS. 3 and 16, the key lever 51 is provided with a lever portion 51c and a lever pin 51d. This is a portion extending from the lever portion 51c and the input shaft portion 51a toward the front of the vehicle. The lever pin 51d is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle body from the end surface located on the indoor side in the lever portion 51c.

  As shown in FIG. 3, the key link 52 is slidably disposed along the longitudinal direction of the pair of guide bodies 2 a provided in the main case 2, and extends from the upper end portion to the lower end portion of the housing 10. It is formed in a shape. As shown in FIGS. 10-1 and 10-2, the key link 52 has a key linkage end portion 52a, a double lock linkage portion 52b, and a sector linkage end portion 52c.

  The key link end portion 52a is a portion positioned above the pair of guide bodies 2a provided in the main case 2 in the key link 52, and has a key connecting groove hole 52d. The key connecting groove 52d is a slit-like opening formed along the front-rear direction of the vehicle main body at the upper portion of the key linking end 52a. As is apparent from FIG. 51 lever pins 51d are movably fitted and supported.

  The double lock linking portion 52b is a longitudinal portion that is bent downward from the end located below the key linking end 52a and then bent downward, and is provided with a lever support groove 52e, for key operation. It has a slot 52f, a lock recognition protrusion 52g, and an unlock recognition protrusion 52h. The lever support groove 52e is a groove formed so as to be recessed along the longitudinal direction of the double lock linking portion 52b so as to open toward the indoor side. The key operation slot 52f is a slit-like opening formed in the upper portion of the double lock linkage 52b along the extending direction of the lever support groove 52e. The lock recognizing protrusion 52g and the unlock recognizing protrusion 52h are substantially horizontally along the left-right direction of the vehicle main body from the end surface located outside the lever support groove 52e in the double lock linkage 52b. It is an extended columnar protrusion. As apparent from FIG. 3, the lock recognizing protrusion 52g and the unlock recognizing protrusion 52h are juxtaposed along the extending direction of the double lock linking portion 52b.

  The sector linkage end portion 52c is a portion that gradually slopes forward from the end portion located below in the double lock linkage portion 52b and then extends downward, and extends downward. The sector linkage hole 52j Have. The sector coupling hole 52j is a slit-shaped opening formed along the extending direction of the sector linkage end 52c, and as shown in FIG. 14, the key operation pin 31j of the sector lever 31 is movably inserted therein. I'm allowed. When the locking mechanism 30 is in the locked state, the sector connecting hole 52j is located at a position where the inner wall surface of the unlocking portion 52m located below is close to the key operation pin 31j of the sector lever 31 as shown in FIG. On the other hand, when the lock mechanism 30 is in the unlock position, the inner wall surface of the lock portion 52n positioned above is close to the key operation pin 31j of the sector lever 31, as shown in FIG. It is configured to be arranged at a position.

  As shown in FIG. 3, a key switch 53 is disposed in the vehicle front area of the double lock linkage 52 b in the key link 52. The key switch 53 has a detection piece 53a disposed between the lock recognition protrusion 52g and the unlock recognition protrusion 52h of the key link 52, and the lock recognition protrusion 52g and the unlock recognition protrusion for the detection piece 53a. The position of the key link 52 is detected according to the contact state of the protrusion 52h.

  Here, shifting the lock mechanism 30 in the unlocked state shown in FIG. 18 to the locked state shown in FIG. 3 is not necessarily limited to driving the electric motor 35 or locking the lock knob D3, but to the key cylinder KC. It can also be carried out by performing a locking operation. That is, when the key lever 51 is rotated counterclockwise around the axis of the rotation recess 51b by the key operation of the key cylinder KC from the unlocked state shown in FIG. 18, the key link engaged through the lever pin 51d is engaged. 52 slides downward along the longitudinal direction of the pair of guide bodies 2 a provided in the main case 2. When the key link 52 slides downward along the longitudinal direction of the pair of guide bodies 2a provided on the main case 2, the inner wall surface of the lock portion 52n moves the key operation pin 31j of the sector lever 31 downward in the sector connection hole 52j. It will be moved towards. At this time, since the lock recognizing projection 52g presses the detection piece 53a of the key switch 53 downward, the key switch 53 detects the key operation of the key cylinder KC from the movement of the key link 52, that is, the locking operation. To do. When the key operation pin 31j of the sector lever 31 moves downward, the sector lever 31 swings counterclockwise about the sector lever shaft 34 while appropriately rotating the worm 36. As a result, in the lock mechanism 30, the first link lever 32 engaged through the connecting pin 31f and the second link lever 33 that contacts the lever contact portion 32d swing counterclockwise about the mounting hole 32j. Then, the locked state shown in FIG.

  Further, the lock mechanism 30 in the locked state shown in FIG. 3 is not necessarily moved to the unlocked state shown in FIG. 18, and is not necessarily driven by the electric motor 35, but also by unlocking the key cylinder KC. Can be implemented. That is, when the key lever 51 is rotated clockwise around the axis of the rotation recess 51b by the key operation of the key cylinder KC from the locked state shown in FIG. 3, the key link 52 engaged through the lever pin 51d is moved. The pair of guide bodies 2a provided in the main case 2 slide upward along the longitudinal direction. When the key link 52 slides upward along the longitudinal direction of the pair of guide bodies 2a provided on the main case 2, the inner wall surface of the unlocking portion 52m moves the key operation pin 31j of the sector lever 31 upward in the sector connection hole 52j. Will be moved towards. At this time, since the unlock recognition protrusion 52h presses the detection piece 53a of the key switch 53 upward, the key switch 53 moves from the key link 52 to the key operation of the key cylinder KC, that is, the unlocking operation. Is detected. When the key operation pin 31j of the sector lever 31 moves upward, the sector lever 31 swings clockwise around the sector lever shaft 34 while appropriately rotating the worm 36. As a result, in the lock mechanism 30, the first link lever 32 engaged through the connecting pin 31f and the second link lever 33 biased by the panic spring 39 swing clockwise about the mounting hole 32j, The unlocked state shown in FIG. 18 is obtained.

  In addition, as shown in FIG. 3, the door lock device is provided with a double lock mechanism 60 inside the lock mechanism housing portion 12. The double lock mechanism 60 is configured to be switchable between an unset state and a set state, and includes a double lock lever (double lock member) 61.

  As shown in FIG. 3, the double lock lever 61 is linearly movable between an unset position that is slid upward as much as possible and a set position that is slid downward as much as shown in FIG. It is composed. As shown in FIGS. 11A and 11B, the double lock lever 61 is provided with a sliding portion 61b, an unset operation pin 61c, and a block portion 61d at a portion of the base portion 61a on the vehicle rear side. It is.

  The sliding portion 61b is a portion that extends in a longitudinal direction downward from an end surface located on the outdoor side of the base portion 61a. The sliding portion 61b is movably fitted in the lever support groove 52e of the key link 52 (see FIG. 17). The unset operation pin 61c is a columnar protrusion that extends substantially horizontally along the left-right direction of the vehicle body from the end surface located on the outdoor side of the upper portion of the sliding portion 61b. The unset operation pin 61c is movably inserted into the key operation slot 52f of the key link 52. When the double lock lever 61 is disposed at the set position shown in FIG. 21, the key operation slot 52f is inserted. On the other hand, when the double lock lever 61 is arranged at the unset position shown in FIG. 3, it is arranged so as to be arranged at the approximate center in the vertical direction in the key operation slot 52f. is there. The block portion 61d is a portion protruding from the extending end portion located below the sliding portion 61b toward the vehicle front side. When the double lock lever 61 is disposed at the set position shown in FIG. 21, the block portion 61d is close to the block protrusion 31e of the sector lever 31, and the block protrusion 31e swings around the sector lever shaft 34. In this case, it is arranged in the swing region. On the other hand, the block portion 61d is configured to be disposed outside the swing region of the block protrusion 31e when the double lock lever 61 is disposed at the unset position shown in FIG.

  Further, as shown in FIGS. 11A and 11B, the double lock lever 61 is provided with a first arm portion 61e and a second arm 61f at a portion of the base portion 61a on the vehicle front side. The first arm portion 61e is a portion that extends toward the front of the vehicle after being curvedly extended toward the front of the vehicle from the end surface located on the indoor side in the base portion 61a. The first arm portion 61e has a gripping groove portion 61g that is curved so as to open toward the front of the vehicle. The second arm portion 61f is a portion that extends toward the front of the vehicle after being curvedly extended toward the front of the vehicle from the end surface located on the outdoor side in the base portion 61a. The second arm portion 61f has a gripping groove portion 61h that is curved so as to open toward the front of the vehicle.

  Further, in the double lock lever 61, a link pin 62 is provided between the first arm portion 61e and the second arm portion 61f, as shown in FIGS. The link pin 62 is interlocked with the double lock lever 61. As shown in FIGS. 12A and 12B, the link main body 62a and a pair for interlocking the pin main body 62a and the double lock lever 61 are provided. Transmission pin 62b. The pin main body 62a has a cylindrical shape and has a gear portion 62c therein. The gear portion 62c is a gear formed on the inner peripheral surface of the pin body 62a, and meshes with a worm 64 fixed to the output shaft 63a of the electric motor (drive source) 63 (see FIG. 17). The pair of transmission pins 62b are columnar protrusions extending substantially horizontally along the left-right direction of the vehicle main body from the outer peripheral surfaces located on the indoor side and the outdoor side of the pin main body 62a. The pair of transmission pins 62b are disposed in the holding groove 61g of the first arm 61e and the holding groove 61h of the second arm 61f in the double lock lever 61, respectively.

  As shown in FIGS. 3 and 17, an overcenter spring 65 is provided between the key link 52 and the main case 2. The over center spring 65 holds the double lock lever 61 via the unset operation pin 61c. Specifically, as shown in FIG. 3, the double lock lever 61 is slid upward as much as possible along the longitudinal direction of the key link 52, and as shown in FIG. The double lock lever 61 is held at one of the set positions where the key is slid downward as much as possible along the longitudinal direction of the key link 52.

  Further, as shown in FIG. 21, a double lock switch 66 is disposed in the vehicle front portion of the double lock lever 61. The double lock switch 66 detects whether or not the double lock lever 61 is in the set position according to the contact state of the extended end portion of the second arm portion 61f of the double lock lever 61 with respect to the detection piece 66a. .

  Furthermore, the electric motor 35, the lock switch 38, the key switch 53, the electric motor 63, and the double lock switch 66 described above are connected to a circuit board 71 disposed inside the lock mechanism housing portion 12, as shown in FIG. It is. The circuit board 71 is provided with a connector 72 for supplying electric power to each motor and each switch. The connector 72 constitutes an electric power supply system, and inputs an electrical signal to each motor from a control unit (not shown) of the vehicle body or from each switch to a control unit (not shown) of the vehicle body. It is also used as a communication means for outputting electrical signals. As apparent from FIG. 2, the connector 72 is exposed to the outside through the opening 3 b provided in the sub case 3. Further, the opening 3b provided in the sub case 3 is provided through the opening (not shown) provided in the inside panel IP located on the indoor side of the door D when the door lock device is provided in the door D. It is exposed to the outside (see FIG. 1).

  In the double lock mechanism 60 configured as described above, the state shown in FIG. 3 is an unset state, and the double lock lever 61 is disposed at the unset position. It will be arranged outside the rocking range.

  When the worm 64 is appropriately rotated in an arbitrary direction by driving the electric motor 63 from the unset state shown in FIG. 3, the link pin 62 moves downward along the extending direction of the worm 64. When the link pin 62 moves downward along the extending direction of the worm 64, the first arm portion 61e and the first arm portion 61e forming the lower portion of the holding groove portion 61g and the holding groove portion 61h of the double lock lever 61 via the pair of transmission pins 62b and the first arm portion 61e. Each of the two arm portions 61f moves downward. As a result, in the double lock mechanism 60, the double lock lever 61 moves linearly downward along the longitudinal direction while being guided by the lever support groove 52e of the key link 52 via the sliding portion 61b, and FIG. The set state is shown.

  In this set state, since the double lock lever 61 is disposed at the set position, the block portion 61d is disposed in the swing region of the block protrusion 31e in the sector lever 31. When the inside door handle D2 is opened from this state, the first link lever 32 and the second link lever 33 are moved upward by the movement of the open linkage portion 17d in the inside handle lever 17, and the lock linkage portion 17c. Comes into contact with the inside contact surface 41e of the lock lever 41, and the lock lever 41 is swung clockwise around the axis of the sector lever shaft. When the open linkage portion 17d of the inside handle lever 17 moves upward, the first link lever 32 and the second link lever 33 also move upward via the pressure receiving portion 16c of the open lever 16. On the other hand, when the lock lever 41 swings clockwise around the axis of the sector lever shaft 34, the linkage spring 42 is appropriately elastically deformed via the spring linkage portion 41a to increase the urging force of the linkage spring 42. The spring action portion 42a further presses the housing wall 31h forming the upper part (see FIG. 21) of the spring operation groove portion 31k of the sector lever 31 in the clockwise direction around the sector lever shaft 34. Become. However, even if the spring action portion 42 a of the linkage spring 42 further presses the housing wall 31 h that forms the upper part of the spring operation groove portion 31 k of the sector lever 31, the block protrusion 31 e of the sector lever 31 does not block the block portion 61 d of the double lock lever 61. This prevents the sector lever 31 from swinging to the unlock position. That is, in the set state, even if the lock lever 41 swings clockwise around the axis of the sector lever shaft 34, the linkage lever 42 is only elastically deformed as appropriate, so that the sector lever 31 in the locked position is unlocked. Therefore, the lock lever 41 operates independently with respect to the sector lever 31. As a result, the ratchet driving portion 33b of the second link lever 33 does not come into contact with the contact portion 26a of the ratchet lever 26 in the latch mechanism 20, and the lock mechanism 30 that is locked by the opening operation of the inside door handle D2 is released. Switching to the unlocked state is also prevented, and the door D cannot be opened and moved by the opening operation of the inside door handle D2.

  By the way, in the set state shown in FIG. 21, for example, even if a malicious one operates the lock linking means LC illegally and swings the lock lever 41 clockwise around the axis of the sector lever shaft 34, The sector lever 31 at the lock position does not swing to the unlock position only by elastically deforming the spring 42 as appropriate, and the lock lever 41 operates independently with respect to the sector lever 31. As a result, the lock mechanism 30 in the locked state is prevented from being switched to the unlocked state by the operation of the lock linking means LC, and the door D is maintained in the closed position with respect to the vehicle body. .

  When the worm 64 is appropriately rotated in an arbitrary direction by driving the electric motor 63 from the set state shown in FIG. 21, the link pin 62 moves upward along the extending direction of the worm 64. When the link pin 62 moves upward along the extending direction of the worm 64, the first arm portion 61e and the first arm portion 61e that form the grip groove portion 61g and the grip groove portion 61h of the double lock lever 61 via the pair of transmission pins 62b and the first arm portion 61e. Each of the two arm parts 61f moves upward. As a result, in the double lock mechanism 60, the double lock lever 61 moves linearly upward along the longitudinal direction while being guided by the lever support groove 52e of the key link 52 via the sliding portion 61b, and again in FIG. Returns to the unset state shown in.

  Here, shifting the double lock mechanism 60 in the set state shown in FIG. 21 to the unset state is not necessarily performed by driving the electric motor 63, but also by unlocking the key cylinder KC. be able to. That is, when the key lever 51 is rotated clockwise around the axis of the rotation recess 51b by the key operation of the key cylinder KC from the set state shown in FIG. 21, the key link 52 engaged through the lever pin 51d is moved. The pair of guide bodies 2a provided in the main case 2 slide upward along the longitudinal direction. When the key link 52 slides upward along the longitudinal direction of the pair of guide bodies 2 a provided on the main case 2, the inner wall surface at the lower end of the key operation groove 52 f is the unset operation pin 61 c of the double lock lever 61. And the inner wall surface of the unlock portion 52m moves the key operation pin 31j of the sector lever 31 upward in the sector connecting hole 52j following the movement of the double lock lever 61. It will be. When the unset operation pin 61c of the double lock lever 61 moves upward, as shown in FIG. 22, the double lock lever 61 appropriately rotates the worm 64 via the link pin 62 and moves the sliding portion 61b. Accordingly, it moves linearly upward along the longitudinal direction while being guided by the lever support groove 52e of the key link 52. Eventually, after the block portion 61d of the double lock lever 61 moves out of the swinging area of the block protrusion 31e in the sector lever 31, the key operation pin 31j of the sector lever 31 moves upward as shown in FIG. The sector lever 31 swings clockwise around the sector lever shaft 34 while appropriately rotating the worm 36. At this time, since the unlock recognition protrusion 52h presses the detection piece 53a of the key switch 53 upward, the key switch 53 moves from the key link 52 to the key operation of the key cylinder KC, that is, the unlocking operation. Is detected. As a result, in the double lock mechanism 60, the double lock lever 61 is disposed in the unset position, and the double lock mechanism 60 is in the unset state, and the lock mechanism 30 is engaged with the first link lever 32 and the panic spring 39 that are engaged via the connecting pin 31f. The second link lever 33 urged by the rocking motion pivots clockwise around the mounting hole 32j, and the unlocked state shown in FIG. 18 is obtained.

  According to the door lock device configured as described above, the electric motor 63 is driven so as to be linearly movable between the unset position and the set position, and the sector lever 31 swings when moved to the set position. It has a block portion 61d arranged in the moving region, and includes a double lock lever 61 that prevents the sector lever 31 in the lock position from swinging to the unlock position via the block portion 61d. It is. For this reason, if the double lock lever 61 is in the set position, the swing of the sector lever 31 is prevented via the block portion 61d even if the inside door handle D2 is operated to open the door. Therefore, even if the inside door handle D2 is operated after the window glass is broken, the lock mechanism 30 in the locked state is not switched to the unlocked state. Thereby, the anti-theft property of the vehicle can be improved. In addition, since the double lock lever 61 is configured to move linearly along the longitudinal direction of the key link 52 between the unset position and the set position, the shaft member is moved between the unset position and the set position. Compared to the case of swinging around the axis, the space occupied by the double lock lever 61 can be reduced. Therefore, a situation in which the door lock device becomes large is not caused.

  In the above-described embodiment, the cover member is covered with the inside working end portion 17a of the inside handle lever 17 and the lock acting end portion 41b of the lock lever 41 so as to cover the portions exposed to the outside of the housing 10. It may be provided.

It is the figure which looked at the door lock device which is an embodiment of the invention from the vehicles back side. It is the figure which looked at the door lock apparatus shown in FIG. 1 from the room inner side. It is the figure which removed the subcase in the door lock apparatus shown in FIG. 1, and was seen from the room inner side. It is a conceptual diagram which shows the door opening state of the latch mechanism applied to the door lock apparatus shown in FIG. It is a conceptual diagram which shows the latch state of the latch mechanism applied to the door lock apparatus shown in FIG. It is a front view of the inside handle lever applied to the door lock device shown in FIG. It is A arrow directional view of the inside handle lever shown to FIGS. It is a front view of the sector lever applied to the door lock device shown in FIG. FIG. 6 is a B arrow view of the sector lever shown in FIG. FIG. 6 is a C arrow view of the sector lever shown in FIG. It is a front view of the 1st link lever applied to the door lock device shown in FIG. It is D arrow line view of the 1st link lever shown to FIGS. 7-1. 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. It is a front view of the lock lever applied to the door lock device shown in FIG. It is F arrow line view of the lock lever shown to FIGS. 9-1. It is a front view of the key link applied to the door lock apparatus shown in FIG. It is G arrow line view of the key link shown to FIGS. 10-1. It is a front view of the double lock lever applied to the door lock device shown in FIG. It is an H arrow directional view of the double lock lever shown to FIGS. It is a front view of the link pin applied to the door lock apparatus shown in FIG. It is a J arrow directional view of the link pin shown to FIGS. It is the sectional view on the AA line in FIG. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is CC sectional view taken on the line in FIG. It is the DD sectional view taken on the line in FIG. It is the EE sectional view taken on the line in FIG. It is a figure at the time of making a lock mechanism into an unlocking state in the door lock device shown in FIG. It is a figure which shows the state which opened the inside door handle in the state shown in FIG. FIG. 20 is a diagram illustrating a state in which the inside door handle is continuously opened in the state illustrated in FIG. 19. It is a figure at the time of setting a double lock mechanism in the door lock apparatus shown in FIG. It is a figure which shows the state which unlocked the key cylinder in the state shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Housing 11 Latch mechanism accommodating part 12 Lock mechanism accommodating part 16 Open lever 16a Open action | operation end part 16b Open action | operation end part 16c Pressure receiving part 17 Inside handle lever 17a Inside action end part 17b Inside action | operation end part 17c Lock | link linkage part 17d Open linkage part 20 Latch mechanism 22 Latch 23 Ratchet 24 Latch shaft 25 Ratchet shaft 26 Ratchet lever 26a Contact portion 30 Lock mechanism 31 Sector lever 31a Transmission end portion 31b Operation end portion 31c Sector lever shaft hole 31e Block projection 31f Connecting pin 31g Gear portion 31h Wall 31j Key operation pin 31k Spring operation groove 31m Pin operation groove 31n Stop pin 31p Stopper 32 First link lever 32a Link body 32b Spring housing groove 3 c Sector connecting part 32d Lever contact part 32e Connecting groove 32g Connecting tool 32h Connecting tool main body 32j Mounting hole 32k Mounting claw 32m Mounting groove 33 Second link lever 33a Lever main body 33b Ratchet driving part 33c Latching part 33d Connecting tool main body Hole 34 Sector lever shaft 35 Electric motor 35a Output shaft 36 Worm 37 Over center spring 38 Lock switch 39 Panic spring 41 Lock lever 41a Spring linkage part 41b Locking end 41c Lock operation pin 41e Inside contact surface 42 Linking spring 42a Spring action Part 51 Key lever 51a Input shaft part 51b Turning recess 51c Lever part 51d Lever pin 52 Key link 52a Key linkage end 52b Double lock linkage 52c Sector linkage end 52d Key connection slot 52e Lever support groove 52f Key operation groove 52g Lock recognition protrusion 52h Unlock recognition protrusion 52j Sector connection hole 52m Unlock part 52n Lock part 53 Key switch 60 Double lock mechanism 61 Double lock lever 61a Base 61b Sliding part 61c Unset operation pin 61d Block portion 61e First arm portion 61f Second arm portion 61g Holding groove portion 61h Holding groove portion 62 Link pin 62a Link pin main body 62b Transmission pin 62c Gear portion 63 Electric motor 63a Output shaft 64 Warm 65 Over center spring 66 Double Lock switch 71 Circuit board 72 Connector D Door IP Inside panel D1 Outside door handle D2 Inside door handle D3 Lock knob KC Key cylinder LC Lock linkage Stage S striker

Claims (1)

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 the movement of the door in the opening direction;
The sector is interposed between the door handle and the latch mechanism, and can be switched between an unlocked state and a locked state according to the position of the sector lever that swings about the axis of the sector lever shaft. When the lever is placed in the unlocked position, the door is unlocked, and the door opening operation is transmitted to the latch mechanism to release the latched state, while the sector lever is placed in the locked position. In a door lock device comprising: a lock mechanism that enters a locked state, invalidates a door opening operation of the door handle, and maintains a latched state of the latch mechanism;
When the inside door handle disposed in the room is opened while the lock mechanism is unlocked, the door opening operation is transmitted to the latch mechanism, while the inside door handle is moved when the lock mechanism is locked. A double action mechanism that switches the lock mechanism to the unlocked state by swinging the sector lever at the lock position to the unlock position without transmitting the door open operation to the latch mechanism when the door is opened When,
It is configured to be linearly movable between an unset position and a set position by driving a drive source, and has a block portion that is disposed in the swinging area of the sector lever when moved to the set position. A door lock device comprising: a double lock member that prevents the sector lever in the lock position from swinging to the unlock position via the block portion.

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