JP2005120681A - Door lock device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door lock device for a vehicle enabling one motion operation and keyless lock operation and capable of preventing increase of operation load from the halfway of door opening operation in a vehicle room to enhance operation property and simplifying its structure. <P>SOLUTION: This door lock device for the vehicle is constituted in such a way that a pressure receiving part 86a capable of abutting the other end of a pressing link 87 is provided at the outer periphery of an intermediate lever 86, a guide projection 91 is protrusively provided on a support member 57 supporting the intermediate lever 86 turnably and made of synthetic resin, and the pressing link 87 which is energized by a spring so as to come into slide-contact with the guide projection 91 and whose one end is turnably connected with an inside handle lever 61 is displaced to a position where abutting on the pressure receiving part 86a is released while guided by the guide projection 91 in accordance with further turn of the inside handle lever 61 after turning the intermediate lever 86 from a lock position to an unlock position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle door lock device, and in particular, an operation (so-called one-motion operation) that enables an door to be opened in an unlocked state by opening an inside handle in a vehicle compartment even when the door is locked. A door for a vehicle that enables an operation (so-called keyless lock operation) to obtain a locked state by closing the door after locking the lock knob while pulling the outside handle or inside handle outside the vehicle compartment when the door is open It relates to a locking device.

A vehicle door lock device that enables one-motion and keyless lock operations is known, for example, from Patent Document 1 and the like.
Japanese Patent Publication No. 6-63395

  By the way, in order to enable both one-motion and keyless lock operations, one end of the press link is connected to the inside handle lever that is rotated by the door opening operation in the passenger compartment, and the intermediate lever that is linked and linked to the knob lever is pressed. Although the structure is configured so that the pressing force from the link acts, in the above-mentioned conventional device, even if the inside handle lever further rotates after the intermediate lever has reached the unlocked position, the pressing force from the pressing link In order to prevent the pin from acting on the intermediate lever, a restricting hole for restricting the movement of the pin protruding from the pressing link is provided in the fixed mounting bracket, and the guide shaft protruding from the pressing link is used as the opening of the restricting hole. When the inside handle lever rotates further after the intermediate lever is in the unlocked position Has a structure in which sliding contact with the guide shaft upright slide edge of the restriction hole. For this reason, the door opening operation load in the passenger compartment after the pressing force from the pressing link no longer acts on the intermediate lever increases rapidly, and there is a problem in operability. Moreover, in the above-mentioned conventional one, the shaft for contacting and engaging the pressing link is provided in the intermediate lever, and the guide shaft is also provided in the pressing link, so that the structure is complicated and the cost is increased. .

  SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to prevent the operation load from increasing during the door opening operation in the vehicle interior, thereby improving the operability and simplifying the structure of the vehicle door lock. An object is to provide an apparatus.

  In order to achieve the above object, a first aspect of the present invention provides a latch that can be rotated by engaging with a striker on the vehicle body side, an engagement position that engages with the latch, and an engagement that releases the engagement. A ratchet that can be rotated between release positions, and a ratchet that is rotated in response to a door opening operation in the vehicle interior and that is engaged with the ratchet in the engagement position. It is possible to slide from the non-operation position to the operation position according to the rotation of the inside handle lever that rotates to the side, the open lever that rotates according to the door opening operation, and the rotation of the open lever that accompanies the door opening operation. One end is connected to the open lever and the ratchet is moved to the disengagement position according to the slide from the non-operation position to the operation position. An open link that enables rotation between the locked state holding positions that hold the engagement position of the ratchet in spite of sliding from the operation position to the operation position, and rotation from the lock position to the unlock position according to the unlocking operation. A locking lever that moves and rotates the open link from the locked state holding position to the locked state releasing position, a knob lever that rotates together with the locking lever, an intermediate lever that is linked and connected to the knob lever, A pressure link having one end connected to the inside handle lever so as to apply a pressing force to the intermediate lever in a direction to rotate to the unlock position side according to the rotation of the inside handle lever according to the door opening operation. And the other end of the pressing link is brought into contact with the outer periphery of the intermediate lever. A guide protrusion is provided on a case made of synthetic resin, which is provided with a pressure receiving portion that can be rotated, and rotatably supports the intermediate lever. The inside handle lever is urged by a spring so as to be in sliding contact with the guide protrusion. The pressing link having one end rotatably connected thereto is guided by the guide protrusion as the inside handle lever further rotates after the intermediate lever is rotated from the locked position to the unlocked position. However, it is formed so as to be displaced to a position where the contact with the pressure receiving portion is released.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the other end of the pressing link starts from the contact start of the other end of the pressing link to the pressure receiving portion of the intermediate lever. The reaction force vector acting on the side of the pressure link from the pressure receiving portion until the contact with the pressure link is released includes a connection fulcrum to one end of the pressure link to the inside handle lever and a rotation fulcrum of the inside handle lever. It is set so that it may face between.

  According to the first aspect of the present invention, when the inside handle lever rotates in response to the door opening operation in the vehicle interior, the pressure receiving portion of the intermediate lever is pushed by the pressing link by the rotation of the inside handle lever, The lever pivots from the locked position to the unlocked position, but even if the inside handle lever pivots after the intermediate lever is in the unlocked position, the pressing link will contact the pressure receiving part of the intermediate lever. Therefore, the operation load can be prevented from increasing during the door opening operation in the passenger compartment, and the operability can be improved. Moreover, in order to displace the pressing link to the position where the contact of the intermediate lever with the pressure receiving portion is released, it is only necessary to devise the shape of the sliding contact portion with the guide projection of the pressing link, so the structure is simple. Cost can be reduced.

  According to the second aspect of the present invention, the reaction force acting on the pressure link side from the pressure receiving portion until the pressing link releases the contact with the pressure receiving portion from the start of contact of the pressure link to the pressure receiving portion. Since the moment that contacts the pressure receiving portion acts on the pressure link due to the vector, there is no need to set a large spring load of the spring that urges the pressure link toward the side that makes the pressure link slide on the guide projection. The pressing link can be reliably brought into contact with the pressure receiving portion while preventing.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.

  1 to 12 show an embodiment of the present invention, FIG. 1 is a side view of a vehicle, and FIG. 2 shows a door lock device for a front side door along line 2-2 in FIG. FIG. 3 is an enlarged cross-sectional view, FIG. 3 is a view taken along line 2-3 of FIG. 2 in a state where the front side metal plate is omitted, and FIG. 4 is a view taken along line 4-4 of FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 3, FIG. 6 is a diagram showing a connected state of the ratchet lever, open lever, inside handle lever, open link, support lever, and locking lever, and FIG. 7 is a diagram in the unlocked position. FIG. 8 is a cross-sectional view corresponding to FIG. 5 in a state where the rotation of the locking lever to the unlock position side is prevented, and FIG. 9 is a state in which the open link is in contact with the restricting portion. FIG. 10 is a cross-sectional view corresponding to FIG. 5, and FIG. 10 is a diagram in a state where the pressing link is in contact with the pressure receiving portion. FIG. 11 is a view corresponding to FIG. 4 in a state in which the intermediate lever is rotated to the unlock position, and FIG. 12 is a state where the inside handle lever is further moved after the intermediate lever is rotated to the unlock position. FIG. 5 is a view corresponding to FIG. 4 in a rotated state.

  First, in FIG. 1, one end portion of a pair of left and right front side doors DF each including a wind glass GF that can be raised and lowered is pivotally supported at front portions on both sides of a vehicle body 20 in a passenger vehicle V. One end portion of a pair of left and right rear side doors DR each including a wind glass GR that can be moved up and down is pivotally supported by a middle portion (not shown) of the vehicle body 20 in the front-rear direction. A door lock device LF for maintaining the closed state of the front side door DF is provided at the other end of the front side door DF, and a rear portion is provided at the other end of the rear side door DR. Door lock devices LR for maintaining the closed state of the side doors DR are provided.

  In FIG. 2, a glass sash 23 is provided in the front side door DF, and the window glass GF is guided by the door glass run 24 made of an elastic material such as rubber held by the glass sash 23. The The inner panel 25 of the front side door DF is integrally formed with an end wall portion 25a that faces the vehicle body 20 when the front side door DF is closed, and the door lock device LF for the front side door DF is formed. Is coupled to the inner surface of the end wall portion 25a so as to avoid interference with the glass sash 23.

  Referring also to FIG. 3, the casing 26 of the door lock device LF is formed by sandwiching a casing main body 27 made of synthetic resin between a front side metal plate 27 and a back side metal plate (not shown), Fastened to the end wall 25a of the inner panel 25. A surface of the casing main body 29 that faces the front metal plate 27 is provided with a recess 30 having an open lower end, and the front metal plate 27 formed in a flat plate shape is fitted into the recess 30, and the front metal The lower part of the plate 27 protrudes downward from the lower part of the casing main body 29.

  The casing main body 29 is integrally provided with a bulging portion 31 swelled on the side away from the front metal plate 27, and the striker 32 (see FIG. 3) fixed to the pillar of the vehicle body 20 is allowed to enter. An entry groove 33 opened in the recess 30 is formed by the bulging portion 31, and an opening corresponding to the entry groove 33 is provided in the front metal plate 27.

  The front side metal plate 27, the casing main body 29, and the back side metal plate to be fitted in the recess 30 are a rivet shaft 34 disposed above the bulging portion 31 and a pair of portions disposed below the bulging portion 31. The rivet shafts 35 and 36 are connected.

  A latch 38 is inserted between the front metal plate 27 and the casing main body 29 of the casing 26, and the latch 38 is rotatably supported by the rivet shaft 34. A ratchet 39 and a ratchet lever 40 which are overlapped with each other are inserted below the latch 36 and between the front metal plate 27 and the casing main body 29, and the ratchet 39 and the ratchet lever 40 are rotated by a common rivet shaft 35. It is supported as possible. That is, while the latch 38 is rotatably supported by the casing 26 above the entry groove 33, the ratchet 39 and the ratchet lever 40 have the entry groove 33 sandwiched between the latch 38 and the entry groove 33. It is rotatably supported by the casing 26 below. Moreover, the rivet shafts 34 and 35 have parallel axes, and the latch 38, the ratchet 39, and the ratchet lever 40 can be rotated around mutually parallel axes.

  The latch 38 is formed by covering most of the metal material with a covering material made of a synthetic resin, and a pin 41 projects from the surface of the latch 38 facing the casing main body 29. On the other hand, the casing main body 29 is provided with a storage groove 42 into which the pin 41 is inserted so as to face the latch 38, and the coil spring 43 stored in the storage groove 42 is connected to the casing main body 29 and the pin. 41 is contracted. As a result, the latch 38 is urged to rotate in the door opening direction (clockwise in FIG. 3).

  On the outer peripheral portion of the latch 38, an engagement groove 44, a full engagement step portion 45, and a half for engaging the striker 32 that has entered the entry groove 33 when the latch 38 is at the rotation end in the door opening direction. An engagement step 46 is provided.

  On the other hand, the ratchet 39 is also formed by covering most of the metal material with a covering material made of a synthetic resin, and the ratchet 39 is integrally provided with an engaging arm portion 47 protruding toward the latch 38 side. A locking surface 48 that can be engaged with the full engagement step 45 and the half engagement step 46 of the latch 38 is formed at the tip of the engagement arm 47.

  A ratchet lever 40 engaged with and connected to the ratchet 39 so as to be able to rotate integrally with the ratchet 39 is sandwiched between the casing main body 29 and the ratchet 39 so that the ratchet 39 and the ratchet 39 share a rivet shaft 35. It is rotatably supported. In addition, the ratchet lever 40 is integrally provided with a pair of engagement pins 49 and 49 that engage with the ratchet 39 so as to prevent relative rotation with the ratchet 39. That is, the ratchet lever 40 overlaps with the ratchet 39 and is arranged coaxially and rotates integrally with the ratchet 39.

  A torsion spring 50 disposed so as to surround the rivet shaft 36 is provided between the casing main body 29 and the ratchet lever 40, and the ratchet that rotates integrally with the ratchet lever 40 by the spring force of the torsion spring 50. 39 is urged to rotate in a direction to engage with the latch 38 (counterclockwise in FIG. 3).

  When the latch 38 is at the rotation end in the door opening direction, the outer periphery of the ratchet 39 is in contact with the outer periphery of the half engagement step 46 in the latch 38 and is pushed by the striker 32 that has entered the entry groove 33. When the latch 38 rotates in the door closing direction (counterclockwise in FIG. 3), the striker 32 is engaged with the engagement groove 44, and the outer periphery of the ratchet 39 is full from the outer periphery of the half engagement step portion 46. The contact position is changed to the outer periphery of the engagement step portion 45. At this time, the engagement surface 48 of the ratchet 39 is engaged with the half engagement step portion 46, whereby the half door state of the front side door DF is maintained. Further, when the striker 32 engaged with the engagement groove 44 further advances inward in the entry groove 33, the latch 38 further rotates in the door closing direction, and comes into sliding contact with the outer periphery of the full engagement step portion 45. The latched ratchet 39 engages the locking surface 48 with the full engagement step portion 45. Thus, the front side door DF is locked in a completely closed state by the engagement of the locking surface 48 with the full engagement step 45.

  The casing main body 29 has a tongue piece 51 that elastically abuts against the striker 32 that has entered the entry groove 33 from the side and brakes the entry of the striker 32 from the outer end opening side of the entry groove 33. It is provided integrally so as to extend to the inner end side. Further, a stopper rubber 52 for abutting against the striker 32 that has entered the entry groove 33 to mitigate the impact is repelled and fitted to the inner end of the entry groove 33 from the front metal plate 27 side. Is formed in a substantially J shape so as to hold the tongue piece 51.

  An open lever 54 is supported on the casing 26 so as to rotate in response to an input of a door opening operation force. The open lever 54 extends long above the bulging portion 31 in the casing main body 29 in the direction along the longitudinal direction of the bulging portion 31, and the middle portion in the longitudinal direction of the open lever 54 is the rivet shaft 34. It is supported by the casing main body 29 so as to be able to turn around the axis of the axis. A torsion spring 55 disposed so as to surround the rivet shaft 34 is provided between the open lever 54 and the casing main body 29. Due to the spring force of the torsion spring 55, the open lever 54 is shown in FIG. Is urged to rotate counterclockwise.

  One end portion 54a along the longitudinal direction of the open lever 54 protrudes from the casing 26 so as to be positioned on the outer side of the window glass GF in the front side door DF, and the one end portion 54a includes a front end 54a. The operating force corresponding to the operation of the outside handle 56 (see FIG. 1) provided on the outer surface side of the side door DF rotates the open lever 54 in the clockwise direction in FIG. 3 against the spring force of the torsion spring 55. It is input to move.

  In the casing 26, the side opposite to the end wall portion 25a of the inner panel 25 is covered with a cover 57 made of synthetic resin. The cover 57 includes a cover main portion 57a formed in a box shape with the casing 26 open and a base end portion connected to the end of the cover main portion 57a opposite to the glass sash 23 so as to be an inner panel. A rising portion 57b extending in a direction away from the end wall portion 25a is integrally provided on the casing 28. A metal support plate 58 is attached to the cover 57 so as to face the rising portion 57 b of the cover 57.

  Referring also to FIG. 4, a support shaft provided on the cover 57 having an axis perpendicular to the rotation axis of the ratchet lever 40 and the open lever 54 between the rising portion 57 b of the cover 57 and the support plate 58. The inside handle lever 61 is supported so as to rotate about the axis 60. An input plate portion 54b is integrally provided on the other end side of the open lever 54, and a first arm portion 61a that can contact the input plate portion 54b is integrally provided on the inside handle lever 61.

  The inside handle lever 61 is a direction in which the first arm portion 61a presses the input plate portion 54b of the open lever 54 in accordance with an operation of an inside handle (not shown) provided inside the front side door DF (FIG. 4). The open lever 54 resists the spring force of the torsion spring 55 by turning the inside handle lever 61 according to the door opening operation in the passenger compartment, that is, the inside handle operation. Thus, it is rotated clockwise in FIG.

  A lock shaft 62 having an axis perpendicular to the rotation axis of the ratchet 39 and the ratchet lever 40 and substantially along the longitudinal direction of the entry groove 33 is rotatably supported at the lower portion of the cover 57. A knob lever 63 is fixed to one end of the lock shaft 62 at a position corresponding to between the portion 57 b and the support plate 58.

  The lock shaft 62 and the knob lever 63 are rotatable between a lock position shown in FIG. 4 and an unlock position rotated counterclockwise in FIG. 4 from the lock position. The knob lever 63 is provided with a triangular protrusion 63 a protruding outward in the radial direction. The knob lever 63 surrounds a support pin 64 provided integrally with the cover 57 and has one end engaged with the cover 57. The other end of the spring 65 extends to a position facing the protrusion 63a. The other end of the torsion spring 65 is provided with a triangular protrusion 65a with the apex facing the protrusion 63a. The torsion spring 65 has the protrusion 65a on the protrusion 63a of the knob lever 63. Demonstrate the spring force to press. Therefore, the knob lever 63 is rotated so that the protrusion 63a gets over the protrusion 65a against the elastic force of the torsion spring 65, and the knob lever 63 is rotated moderately between the unlock position and the lock position. Will move.

  The knob lever 63 is provided with a restriction hole 66 at a position deviated from the rotation axis of the knob lever 63. The cover 57 restricts the rotation position of the knob lever 63 to the range between the unlock position and the lock position. Accordingly, a stopper pin 67 that can contact the side surface of the restriction hole 66 is provided.

  An electric actuator 68 is attached to the lower portion of the casing 26, and the electric actuator 68 is connected to one end of the lock shaft 62. That is, the lock shaft 62 is rotationally driven between the unlock position and the lock position by the operation of the electric actuator 68.

  Referring to FIGS. 5 and 6 together, on one end side of the open lever 54, sliding operation in a plane perpendicular to the rotation axis of the knob lever 63, that is, the axis of the lock shaft 62, and rotation in the plane are performed. One end of the open link 71 is connected, and the open link 71 is moved from the non-operation position shown in FIGS. 5 and 6 to the lower position in FIGS. 5 and 6 by the rotation of the open lever 54 according to the opening operation. Slide toward the operating position. A connecting shaft portion 62a having a non-circular cross-sectional shape is formed at a portion corresponding to the open link 71 of the lock shaft 62, and the support lever 72 is fitted to the connecting shaft portion 62a. That is, the support lever 72 is coaxially connected to the knob lever 63 so as to rotate integrally with the knob lever 63.

  A locking lever 73 is disposed at a position adjacent to the support lever 72 in the axial direction of the lock shaft 62. The locking lever 73 is attached to the lock shaft 62 so as to be capable of relative rotation. In other words, the locking lever 73 can be rotated relative to the support lever 72 that is mounted on the lock shaft 62 integral with the knob lever 63 so as not to be relatively rotated. A cylinder lever 74 is attached to the lock shaft 62 at the end opposite to the knob lever 63, and a key cylinder lock is connected to the cylinder lever 74.

  The other end of the open link 71 is inserted between the support lever 72 and the locking lever 73, and a long hole 76 through which an engagement pin 75 provided at the tip of the locking lever 73 is inserted and engaged is formed in the open link 71. It is provided at the other end of the open link 71 so as to extend long in the longitudinal direction. In addition, the engagement pin 75 inserted through the long hole 76 can be brought into contact with the support lever 72 from the unlock position side. Further, both ends of the torsion spring 77 are inserted and engaged with the support lever 72 and the locking lever 73. Thus, when the lock shaft 62 is rotated from the unlock position to the lock position, the locking lever 73 is directly rotated by the support lever 72 when the engaging pin 75 is pushed by the support lever 72, and the lock shaft 62 is locked. When the support lever 72 is rotated from the lock position to the unlock position, the rotation of the support lever 72 from the lock position to the unlock position side is transmitted to the locking lever 73 via the torsion spring 77.

  Thus, the open link 71 has a locked state holding position (the position shown in FIG. 5) when the locking lever 73 is in the locked position and a locked state releasing position (the position shown in FIG. 7) when the locking lever 73 is in the unlocked position. ).

  The open link 71 is provided with an engaging projection 78 that can be engaged with an engaging arm portion 40a included in the ratchet lever 40. The engaging projection 78 has the open link 71 in the locked state holding position. In a certain state, the sliding arm of the open link 71 according to the rotation of the open lever 54 according to the door opening operation in the passenger compartment does not contact or engage the engagement arm portion 40a of the ratchet lever 40. However, in the state where the open link 71 is in the unlocked position, the engagement arm portion 40a of the ratchet lever 40 is caused by the sliding operation of the open link 71 accompanying the rotation of the open lever 54 according to the door opening operation in the vehicle interior. It is provided in the open link 71 so as to abut on and engage with.

  By the way, in a state where the knob lever 63 and the locking lever 73 are in the locked position, that is, in a state where the open link 71 is in the locked state holding position, a door opening operation force is applied to the open lever 54 by the outside handle 56 or the inside handle. When the unlocking operation is performed by operation or keyless entry, the knob lever 63 rotates from the locked position to the unlocked position while the open link 71 is slid to the locking lever 73 side by the rotation of the open lever 54. Accordingly, the locking lever 73 rotates. During the turning and sliding operation of the open link 71, as shown in FIG. 8, the engaging protrusion 78 of the open link 71 abuts on one side of the engaging arm 40a along the axis of the ratchet lever 40, The open link 71 does not rotate to the unlocked position, and therefore the locking lever 73 does not rotate to the unlock position, but rotates integrally with the knob lever 63 that rotates to the unlock position. The relative rotation between the support lever 72 and the locking lever 73 is absorbed by the torsion spring 77.

  Thus, when the pulling operation of the outside handle 56 or the inside handle is stopped and the operation of the opening operation force to the open lever 73 is stopped, the open lever 54 is rotated to the original position by the spring force of the torsion spring 55. In response to this, the open link 71 also slides back to the original position, but in the return process, the open link 71 causes the engagement protrusion 78 to slidably contact one side surface of the engagement arm 40a. When the open lever 54 returns to the original position, the open link 71 is moved by the spring force of the torsion spring 77 that has absorbed the relative rotation between the locking lever 73 and the support lever 72 as shown in FIG. The engagement protrusion 78 is rotated to a position where it can be engaged with the engagement arm 40a, and the open link 71 becomes the locked state release position.

  Therefore, when the outside handle 56 or the inside handle is operated again, the open link 71 in the unlocked position is operated so as to press and rotate the engagement arm portion 40a by the engagement protrusion 78 by the rotation of the open lever 54. The ratchet 39 is disengaged from the latch 38.

  By the way, the torsion spring 77 is provided between the support lever 72 and the locking lever 73 so that the locking lever 73 follows the rotation of the support lever 72 to the lock position side. A state where the locking lever 73 is prevented from rotating to the unlocked position even though the lever 72 is rotated to the unlocked position side, that is, the locking lever 73 is moved to the locked position side with respect to the support lever 72. If dust or the like bites into the torsion spring 77 in the relative rotation state, the relative rotation state of the locking lever 73 and the support lever 72 may be fixed and may not return to the original state. Then, the open link 71 remains in an idle state with respect to the engaging arm portion 40a of the ratchet lever 40, and the door can be opened. It becomes impossible.

  Therefore, by rotating the lock shaft 62 toward the lock position while the locking lever 73 is relatively rotated toward the lock position with respect to the support lever 72, the lock lever 73 or the open link 71, in this embodiment, the open link. As shown in FIG. 9, a restricting portion 80 that comes into contact with 71 and returns to its original state is provided on the cover 57. That is, the restricting portion 80 is configured so that the support lever 72 does not reach the lock position when the lock shaft 62 is rotated toward the lock position while the locking lever 73 is rotated relative to the support lever 72. In this way, the locking lever 73 is provided with a turning force toward the unlocked position by contacting the open link 71, and the torsion is caused by the reaction force acting on the locking lever 73 from the restricting portion 80 via the open link 71. The dust or the like biting into the spring 77 is forcibly removed, and the relative position of the locking lever 73 and the support lever 72 is returned to the original state.

  In FIG. 4 again, a connecting pin 81 projects from the tip of the first arm portion 61 a of the inside handle lever 61, and the connecting pin 81 is disposed between the rising portion 57 b of the cover 57 and the support plate 58. It is connected to one end of the lock release link 82. The lock release link 82 is supported by the cover 57 so as to be able to slide in the vertical direction, and the connection pin 81 is inserted into a connection hole 83 provided at one end of the lock release link 82. Thus, the connecting hole 83 does not exert any force from the connecting pin 81 to the lock release link 82 until the inside handle lever 61 is rotated by a certain amount of rotation from the non-operating state. 4 is formed such that a force for pulling up the unlocking link 82 upward in FIG.

  On the other hand, the other end of the lock release link 82 is integrally provided with an engagement plate portion 85 that can engage with a locking pin 84 projecting from the ratchet lever 40, and the ratchet 39 and the ratchet lever 40 are provided. When the lock release link 82 is pulled upward by the rotation of the inside handle lever 61 in the engagement position engaged with the full engagement step portion 46 or the half engagement step portion 47 of the latch 38, The engagement plate portion 85 engages with the locking pin 84, and the ratchet 39 and the ratchet lever 40 are forcibly rotated to the engagement release position where the engagement with the latch 38 is released.

  That is, when the inside handle lever 61 is rotated in response to the door opening operation in the vehicle interior, the ratchet 39 is rotated to the engagement release position side without performing the unlocking operation.

  An intermediate lever 86 is supported on the cover 57 at a position adjacent to the knob lever 63. The intermediate lever 86 can be rotated about an axis parallel to the rotation axis of the knob lever 63. The turning force of the inside handle lever 61 due to the rotation of the 61 can be applied to the knob lever 63 via the pressing link 87 and the intermediate lever 86.

  An engagement hole 88 is provided in the intermediate lever 86, and an engagement pin 89 provided integrally with the knob lever 63 unlocks the knob lever 63 from the locked position in response to the rotation of the intermediate lever 86 from the locked position to the unlocked position. The engagement hole 88 is inserted and engaged so as to be rotated to the lock position. The lock release link 82 is also supported by the intermediate lever 86 so as to be slidable.

  Further, a transmission member for transmitting an operating force of a lock knob (not shown) is connected to the connecting hole 95 provided in the intermediate lever 86, and the intermediate lever 86 is also moved between the locked position and the unlocked position by the operation of the lock knob. Rotate.

  The inside handle lever 61 is integrally provided with a second arm portion 61b extending substantially opposite to the first arm portion 61a. One end of a pressing link 87 is connected to the second arm portion 61b via a connecting pin 90. It is pivotally connected. In addition, a pressure receiving portion 86a capable of contacting the other end of the pressing link 87 is integrally provided on the outer periphery of the intermediate lever 86 so as to protrude outward in the radial direction.

  Thus, when the inside handle lever 61 rotates according to the door opening operation in the vehicle interior, the pressing link 87 operates so that the other end abuts against the pressure receiving portion 86a of the intermediate lever 86. A guide protrusion 91 that guides the pressing link 87 while being in sliding contact with one side of the pressing link 87 is integrally provided on the rising portion 57 b of the cover 57. The pressing link 87 is provided with a torsion spring 92 interposed between the rising portion 57b of the cover 57 and the pressing link 87. The pressing link 87 is guided by the spring force exerted by the torsion spring 92. The spring is biased in the direction of sliding contact.

  Thus, when the inside handle lever 61 rotates in response to the door opening operation in the passenger compartment, the other end of the pressing link 87 comes into contact with the pressure receiving portion 86a of the intermediate lever 86 as shown in FIG. When the lever 61 is rotated, a pressing force is applied to the intermediate lever 86 from the pressing link 87 toward the unlock position, so that the intermediate lever 86 locks the knob lever 63 as shown in FIG. It is rotated from the position to the unlock position.

  By the way, the pressing link 87 is brought into contact with the pressure receiving portion 86a while being guided by the guide protrusion 91 in accordance with the further rotation of the inside handle lever 61 after the intermediate lever 86 is rotated from the locked position to the unlocked position. In this embodiment, after the intermediate lever 86 is rotated from the locked position to the unlocked position on the side surface of the pressing link 87 on the guide projection 91 side. As the inside handle lever 61 further rotates, an inclined surface 87a is formed for slidingly contacting the guide protrusion 91 and directing the pressing link 87 toward the outer side of the intermediate lever 86.

  Accordingly, when the inside handle lever 61 is further rotated after the intermediate lever 86 is rotated from the locked position to the unlocked position, the pressing link 87 contacts the pressure receiving portion 86a of the intermediate lever 86 as shown in FIG. It will be displaced to the position where the contact is released. Therefore, even if the inside handle is operated in the locked state, the front side door DF can be opened and unlocked at the same time, and the lock knob can be locked while the inside handle is operated (so-called keyless). When the locking operation is performed, the intermediate lever 86 does not interfere with the pressing link 87.

  Further, when the pressing link 87 makes the other end abut against the pressure receiving portion 86a to rotate the intermediate lever 86, a reaction force acts on the pressing link 87 side from the pressure receiving portion 86a. From the start of contact of the other end of the pressing link 87 to the pressure receiving portion 86a of the intermediate lever 86 (state shown in FIG. 10) until the intermediate lever 86 reaches the unlocked position (state shown in FIG. 11). As shown by an arrow 93 in FIGS. 10 and 11, the reaction force vector is a connection pin 90 that is a connection fulcrum to the inside handle lever 61 at one end of the pressing link 87 and a support that is a rotation fulcrum of the inside handle lever 61. It is set so as to face the axis 60.

  Next, the operation of this embodiment will be described. The intermediate lever 86 interlocked with and connected to the knob lever 63 that rotates together with the locking lever 73 responds to the rotation of the inside handle lever 61 according to the door opening operation in the passenger compartment. One end of a pressing link 87 that applies a pressing force in a direction to rotate toward the unlock position is connected to the inside handle lever 61, and the intermediate lever 86 has a pressure receiving portion 86a that can abut the other end of the pressing link 87. A guide protrusion 91 is provided on a synthetic resin cover 57 provided to pivotally support the intermediate lever 86. The guide protrusion 91 is spring-biased so as to be in sliding contact with the guide protrusion 91, and is attached to the inside handle lever 61. After the pressing link 87 having one end pivotably connected turns the intermediate lever 86 from the locked position to the unlocked position The inside handle lever 61 is formed as further displaced to a position for releasing the contact between the pressure-receiving portion 86 while being guides the guide protrusion 91 according to rotation.

  Therefore, when the inside handle lever 61 is rotated in response to the door opening operation in the vehicle interior, the pressure receiving portion 86a of the intermediate lever 86 is pushed by the pressing link 87 by the rotation of the inside handle lever 61, and the intermediate lever 86 is Even if the inside handle lever 61 is rotated after the intermediate lever 86 is in the unlocked position, the pressing link 87 is moved to the pressure receiving portion 86a of the intermediate lever 86. Since the displacement is made to the position where the contact is released, it is possible to prevent the operation load from increasing during the door opening operation in the passenger compartment and to improve the operability. Moreover, in order to displace the pressing link 87 to a position where the contact of the intermediate lever 86 with the pressure receiving portion 86a is released, it is only necessary to devise the shape of the sliding contact portion with the guide projection 91 of the pressing link 87. Is simple and can reduce the cost.

  Also, the pressure receiving portion 86a is pressed from the start of contact of the other end of the pressing link 87 to the pressure receiving portion 86a of the intermediate lever 86 until the other end of the pressing link 87 releases contact with the pressure receiving portion 86a. Since the reaction force vector acting on the link 87 side is set to face between the connecting fulcrum of the one end of the pressing link 87 to the inside handle lever 61 and the turning fulcrum of the inside handle lever 61, From the start of contact of the pressing link 87 to the pressure receiving portion 86a until the pressing link 87 releases the contact with the pressure receiving portion 86a, the pressing link 87 is applied by the reaction force vector acting on the pressing link 87 side from the pressure receiving portion 86a. Since a moment on the side abutting against the pressure receiving portion 86a acts on the torsion spring 92 that urges the pressing link 87 toward the side that makes sliding contact with the guide protrusion 91, The larger it is not necessary to set load, it is possible to reliably abut the pressing link 87 to the pressure receiving portion 86a while preventing an increase in operation load.

  Further, when the locking lever 73 rotates from the unlock position to the lock position while keeping the posture of rotating relative to the lock position with respect to the lock shaft 62, that is, the support lever 72 fixed to the lock shaft 62, At least one of the lever 73 and the open link 71, in this embodiment, the open link 71 abuts against the restricting portion 80, and the locking lever 73 is pressed toward the unlock position with respect to the lock shaft 62 and the support lever 72. The torsion spring 77 is fixed while the locking lever 73 is rotated relative to the lock shaft 62 and the support lever 72 relative to the lock position by the engagement of dust or the like into the torsion spring 77 between the lever 72 and the locking lever 73. Even if the lock shaft 62 is rotated to the lock position side by the unlocking operation, Before the support lever 72 reaches the lock position, the open link 71 comes into contact with the restricting portion 80, and the locking lever 73 is given turning force to the unlock position side. Can be forcibly removed, and the relative position of the locking lever 73 and the support lever 72 can be returned to the original state.

  Moreover, since the restricting portion 80 is provided on the cover 57 that covers the support lever 72, the locking lever 73, and the open link 71, the restricting portion 80 can be easily formed without particularly increasing the number of parts.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

It is a side view of a vehicle. It is an expanded sectional view which shows the door lock apparatus for front side doors along the 2-2 line of FIG. FIG. 3 is a view taken along line 2-3 of FIG. 2 in a state where a front side metal plate is omitted. FIG. 4 is a view taken along line 4-4 of FIG. 2 in a state where a support plate is omitted. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is a figure which shows the connection state of a ratchet lever, an open lever, an inside handle lever, an open link, a support lever, and a locking lever. It is sectional drawing corresponding to FIG. 5 in an unlocking position. FIG. 6 is a cross-sectional view corresponding to FIG. 5 in a state where rotation of the locking lever to the unlock position side is prevented. FIG. 6 is a cross-sectional view corresponding to FIG. 5 in a state in which the open link is in contact with the restricting portion. FIG. 5 is a view corresponding to FIG. 4 in a state where the pressing link is in contact with the pressure receiving portion. FIG. 5 is a view corresponding to FIG. 4 in a state where the intermediate lever is rotated to the unlock position. FIG. 5 is a view corresponding to FIG. 4 in a state where the inside handle lever is further rotated after the intermediate lever is rotated to the unlock position.

Explanation of symbols

32 ... striker 38 ... latch 39 ... ratchet 54 ... open lever 57 ... cover 61 as support member ... inside handle lever 63 ... knob lever 71 ... open link 73 ..Locking lever 86 ... intermediate lever 86a ... pressure receiving portion 87 ... pressing link 91 ... guide protrusion

Claims (2)

  Rotation between a latch (38) that can rotate by engaging with a striker (32) on the vehicle body side, an engagement position that engages with the latch (38), and an engagement release position that releases the engagement The ratchet (39) that can be rotated, and the ratchet (39) is engaged according to the rotation when the ratchet (39) is in the engagement position while rotating according to the door opening operation in the vehicle interior. An inside handle lever (61) that rotates to the release position side, an open lever (54) that rotates according to the door opening operation, and a non-operation position according to the rotation of the open lever (54) that accompanies the door opening operation The open lever (54) is connected to the open lever (54) at one end, and the ratchet (39) is rotated to the disengagement position according to the slide from the non-operation position to the operation position. An open link (71) that can be rotated between the locked state holding positions that hold the engaging position of the ratchet (39) despite the locked state releasing position and the slide from the non-operating position to the operating position. A locking lever (73) that rotates from the locked position to the unlocked position in response to the unlocking operation to rotate the open link (71) from the locked state holding position to the locked state release position, and the locking lever ( 73) and the intermediate lever (86) interlocked and coupled to the knob lever (63), and the inside handle lever (61) according to the door opening operation in the passenger compartment. The inside handle lever is configured to apply a pressing force in a direction to rotate toward the unlock position to the intermediate lever (86). (61) The pressure receiving part which can make the other end of the said press link (87) contact | abut on the outer periphery of the said intermediate | middle lever (86) provided with the press link (87) by which one end is connected. (86a) is provided, and a guide protrusion (91) is protruded from the synthetic resin support member (57) that rotatably supports the intermediate lever (86), and is in sliding contact with the guide protrusion (91). The pressing link (87) that is spring-biased and has one end rotatably connected to the inside handle lever (61) rotates the intermediate lever (86) from the locked position to the unlocked position. After that, as the inside handle lever (61) further rotates, the inner handle lever (61) is guided to the guide projection (91) so as to be displaced to a position where the contact with the pressure receiving portion (86a) is released. A door lock device for a vehicle, characterized by being formed.   From the start of contact of the other end of the pressing link (87) to the pressure receiving portion (86a) of the intermediate lever (86), the other end of the pressing link (87) is released from contact with the pressure receiving portion (86a). The reaction force vector acting on the side of the pressing link (87) from the pressure receiving portion (86a) is connected to the inside handle lever (61) at one end of the pressing link (87) and the inside handle. The door lock device for a vehicle according to claim 1, wherein the door lock device is set so as to face the rotation fulcrum of the lever (61).

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