JP2010070916A - Door lock device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the supporting strength of a supporting shaft for turnably supporting an open lever, in a door lock device for a vehicle, in which a locking and unlocking changeover mechanism for switching between the state of inputting an unlocking actuating force into a latch mechanism depending on the tuning of an open lever and the state of disabling the input of the unlocking actuating force into the latch mechanism despite the turning of the open lever is housed in a second synthetic-resin case, in which a first case for housing the latch mechanism comprises a synthetic-resin case body, and a metal cover plate and a back plate for sandwiching the case body, and in which the first case is attached to the second case in such a manner that the back plate is covered with the second case. <P>SOLUTION: The base end of the supporting shaft 54 for turnably supporting the open lever 53 is fixedly provided in the second case 27A; and a bearing hole 57 for fitting and supporting the leading end of the supporting shaft 54 is provided in a shaft supporting part 56 which is provided integrally with the back plate 30 in such a manner as to protrude sideward from the case body 28. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention makes it possible to switch between a locked state in which the door cannot be opened and an unlocked state in which the door can be opened, and enters an unlocked state in response to an input of the unlocking operation force in the locked state. Thus, the latch mechanism housed in the first case, the open lever that rotates in response to the input of the door opening operation force, and the unlocking operation force that is input in response to the rotation of the open lever to the latch mechanism And the lock / unlock accommodated in the second case made of synthetic resin so as to switch the state in which the input of the unlocking operation force to the latch mechanism is disabled despite the rotation of the open lever. A case main body formed in a box shape with a synthetic resin so that the latch mechanism is inserted, and a case main And a metal back plate sandwiching the case main body between the cover plate and the first case so as to cover the back plate with the second case. The present invention relates to a vehicle door lock device attached to a second case.

Such a vehicle door lock device is known from Patent Document 1, for example.
JP-A-2005-282222

  However, in the one disclosed in Patent Document 1, the base end of the support shaft that rotatably supports the open lever is fixed to the second case made of synthetic resin that houses the lock / unlock switching mechanism. The tip end of the support shaft is locked to the synthetic resin case main body constituting a part of the first case that houses the latch mechanism, and the support strength of the support shaft that supports the open lever so as to be rotatable is sufficient. It is hard to say.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle door lock device in which the support strength of a support shaft that rotatably supports an open lever is increased.

  To achieve the above object, the invention described in claim 1 makes it possible to switch between a locked state in which the door cannot be opened and an unlocked state in which the door can be opened, and unlocking in the locked state. A latch mechanism that is accommodated in the first case so as to be unlocked in response to an input of an operating force, an open lever that rotates in response to an input of a door opening operation force, and in response to the rotation of the open lever The state in which the unlocking operation force is input to the latch mechanism and the state in which the input of the unlocking operation force to the latch mechanism is disabled despite the rotation of the open lever are switched. A lock / unlock switching mechanism accommodated in the second case, and the first case is made of synthetic resin so that the latch mechanism is inserted into the box. A case main body, a metal cover plate that closes the opening of the case main body, and a metal back plate that sandwiches the case main body between the cover plate, and the first case is In the vehicle door lock device attached to the second case so as to cover the back plate with the second case, a base end portion of a support shaft that rotatably supports the open lever is fixed to the second case, A bearing hole that fits and supports the tip end portion of the support shaft is provided in a shaft support portion that is provided integrally with the back plate so as to protrude laterally from the case main body.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the tip of a support arm portion integrally connected to the shaft support portion so as to extend in a direction substantially parallel to the support shaft. Further, an engaging claw that is elastically engaged with the second case is provided.

  In addition to the configuration of the invention described in claim 2, the invention according to claim 3 is characterized in that the support arm portion defines the rotation limit of the open lever in the input state of the operating force. It is arrange | positioned in the position contact | abutted to.

  According to the first aspect of the present invention, the shaft support portion that protrudes laterally from the case main body is provided integrally with the metal back plate, and the distal end portion of the support shaft whose base end portion is fixed to the second case is provided. Since it is fitted and supported in a bearing hole provided in the shaft support portion, the support strength of the support shaft can be increased.

  According to the second aspect of the present invention, the engagement claw is provided at the tip of the support arm portion that is integrally connected to the shaft support portion and extends in a direction substantially parallel to the support shaft. Since it is elastically engaged with the case, the back plate of the first case and the second case are connected around the support shaft, so that the support strength of the support shaft can be further increased, and the operating force is an open lever. It is possible to prevent the support shaft from being deformed by being input to the shaft, and to prevent the support shaft from rattling or falling off.

  Furthermore, according to the invention described in claim 3, a dedicated restricting portion for restricting the position of the open lever is provided by restricting the rotation limit of the open lever in the input state of the operating force by the support arm portion. This can be made unnecessary.

  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 13 show an embodiment of the present invention. FIG. 1 is a side view showing a connected state of a cylinder lock and a door lock device in a vehicle door, and FIG. 3 is a sectional view taken along line 3-3 in FIG. 1, FIG. 4 is a sectional view taken along line 4-4 in FIG. 1, FIG. 5 is an exploded perspective view of a latch mechanism and a lock / unlock switching mechanism, and FIG. FIG. 7 is a perspective view of the vicinity of the open lever that sequentially shows the assembly process of FIG. 7. FIG. 7 is the same direction as FIG. 2 with the casing and the extension case partially omitted when the lock / unlock switching mechanism is unlocked. FIG. 8 is a view from the same direction as FIG. 2, omitting a part of the casing and the extension case when the lock / unlock switching mechanism is in the locked state, and FIG. 9 is an arrow 9 in FIG. A series of locking levers and open levers as seen from the viewing direction FIG. 10 is an enlarged cross-sectional view taken along line 10-10 of FIG. 7, FIG. 11 is an exploded perspective view of the rotating power transmission means, and FIG. 12 is a sequential view of the connection process of the transmission rod to the driven side rotation member. FIG. 13 is a side view corresponding to FIG. 1 in the case where the rotational force transmission means is unnecessary.

  First, in FIG. 1, for example, a right door D in a passenger vehicle is provided with a cylinder lock 15 and a door lock device 16 </ b> A that switches between a locked state and an unlocked state of the door D according to a key operation of the cylinder lock 15. The turning power associated with the key operation of the cylinder lock 15 is transmitted to the door lock device 16A via the turning rod 17 and the turning power transmission means 18.

  A handle case 19 is attached to the outer surface side of the door D, an outside handle (not shown) is rotatably supported on the handle case 19, and the cylinder lock 15 is attached to the handle case 19. Thus, in the cylinder body 20 of the cylinder lock 15, a rotor 21 having one end portion of the rotating rod 17 connected so as not to be relatively rotatable is rotatably inserted, and a regular key is inserted into the rotor 21. By inserting 22 and rotating, the rotor 21 and the rotating rod 17 are rotated.

  Thus, by turning the rotor 21 of the cylinder lock 15 with the regular key 22, the turning force is input from the turning rod 17 to the door lock device 16A via the turning force transmitting means 18. The door lock device 16A in the unlocked state is switched to the locked state, and the door D remains closed even if the outside handle is operated in this state. Further, when the door lock device 16A is in the locked state, the rotor 21 of the cylinder lock 15 is rotated by the regular key 22 to move from the rotating rod 17 to the door lock device 16A via the rotational power transmission means 18. When the rotational force is input, the door lock device 16A enters an unlocked state, and the door D can be opened by operating the outside handle in the unlocked state.

  2 to 4, the door lock device 16A includes a latch mechanism 23 that can switch between a locked state in which the door D cannot be opened and an unlocked state in which the door D can be opened. And a lock / unlock switching mechanism 24 (see FIGS. 7 and 8) for switching between a locked state and an unlocked state of the latch mechanism 23. The casing 25A of the door lock device 16A includes the latch mechanism 23. Is attached to a second case 27A that houses the lock / unlock switching mechanism 24.

  The first case 26 includes a case main body 28 that is formed in a box shape with a synthetic resin so as to accommodate the latch mechanism 23, a metal cover plate 29 that closes the opening of the case main body 28, and the cover plate 29 And a metal back plate 30 sandwiching the case main body 28 therebetween.

  The case main body 28 is integrally provided with a bulging portion 28a that swells away from the cover plate 29, and has an entry groove 34 for entering a striker 33 (see FIG. 1) fixed to the vehicle body side. The cover plate 29 is formed with the bulging portion 28a, and an opening 35 corresponding to the entry groove 34 is provided. Thus, a rivet shaft 36 inserted through the case main body 28 above the entry groove 34 and the opening 35 is provided between the cover plate 29 and the back plate 30, and the entry groove 34 and the opening 35. A screw member 37 inserted through the cover plate 29 and the case main body 28 is screwed into the back plate 30.

  The cover plate 29 and the case main body 28 are provided with three insertion holes 38, 38... And the back plate 30 has screw holes (not shown) individually corresponding to the respective insertion holes 38, 38. Provided. Thus, the first case 26, that is, the casing 25 </ b> A is fastened to the door D by the bolts 39, 39... Inserted through the respective insertion holes 38, 38.

  Referring to FIG. 1, the latch mechanism 23 includes a latch 40 that can be rotated in the closing direction by engagement with the striker 33, and a latch that holds the rotational position of the latch 40. 40 and a ratchet 41 that can be engaged with 40.

  The latch 40 is inserted into the case main body 28 of the first case 26 and is rotatably supported by the rivet shaft 36 provided between the cover plate 29 and the back plate 30 sandwiching the case main body 28. A rotation shaft 42 having an axis parallel to the rivet shaft 36 is supported on the cover plate 29 and the back plate 30 sandwiching the case main body 28 so as to be rotatable about the axis below the entry groove 34. The ratchet 41 accommodated in the case main body 28 of the first case 26 is fixed to the rotating shaft 42.

  Further, a ratchet lever 43 is fixed to a protruding end portion of the rotation shaft 42 from the back plate 30 of the first case 26, and the ratchet lever 43 rotates together with the ratchet 41. That is, the latch 40 is rotatably supported by the rivet shaft 36 above the entry groove 34, whereas the ratchet 41 and the ratchet lever 43 that rotate integrally form the entry groove 34 between the latch 40. The rotary shaft 42 is fixed below the entry groove 34 so as to sandwich the pin.

  A spring 44 is provided between the latch 40 and the case main body 28, and the latch 40 is rotationally biased in the door opening direction by a spring force exerted by the spring 44. An engagement groove 45 for engaging the striker 33 that has entered the entry groove 34 when the latch 40 is located at the rotation end in the door opening direction, and a full engagement step 46 And a half-engaging step 47.

  On the other hand, the ratchet 41 is integrally provided with an engaging arm portion 41 a protruding toward the latch 40 so as to be able to engage with the full engagement step portion 46 and the half engagement step portion 47 of the latch 40. Further, a torsion spring 48 surrounding the rotation shaft 42 is provided between the ratchet 41 and the back plate 30, and the ratchet 41 that rotates integrally with the ratchet lever 43 by the spring force of the torsion spring 48 is provided in the latch. It is urged to rotate in the direction engaging 40 (counterclockwise in FIG. 1).

  Thus, when the latch 40 is at the rotation end in the door opening direction, the outer periphery of the ratchet 41 is in contact with the outer periphery of the half engagement step portion 47 of the latch 40, and the striker 33 that has entered the entry groove 34. When the latch 40 is pushed and rotates in the door closing direction (counterclockwise in FIG. 1), the striker 33 is engaged with the engagement groove 45, and the outer periphery of the ratchet 41 is at the half engagement step portion 47. The contact position is changed from the outer periphery to the outer periphery of the full engagement step portion 46. At this time, the engagement arm portion 41a of the ratchet 41 is engaged with the half engagement step portion 47, whereby the half door state of the door D is maintained. Further, when the striker 33 engaged with the engagement groove 45 further moves inward in the entry groove 34 and the latch 40 further rotates in the door closing direction, it comes into sliding contact with the outer periphery of the full engagement step portion 46. The ratchet 41 that has been engaged will engage the engagement arm portion 41a with the full engagement step portion 46, and the door D will be locked in a completely closed state.

  The ratchet lever 43 is integrally provided with an input arm portion 43a (see FIG. 1) extending inward of the door D, and in response to input of the unlocking operation force to the input arm portion 43a. As the ratchet lever 43 and the ratchet 41 rotate in the clockwise direction in FIG. 1, the locked state of the latch mechanism 23 that locks the door D in the fully closed state is released, and the latch mechanism 23 is unlocked. It becomes locked.

  Referring also to FIG. 5, the second case 27A for accommodating the lock / unlock switching mechanism 24 is constituted by coupling a case 49A made of synthetic resin and a cover 50 made of synthetic resin to each other. The Thus, the accommodating case 49A accommodates the latch mechanism accommodating portion 51 formed in a box shape by forming the accommodating recess 51a for accommodating the first case 26, and the lock / unlock switching mechanism 24. A lock / unlock switching mechanism accommodating portion 52 rising from the latch mechanism accommodating portion 51 is integrally formed, and the cover 50 is formed in a substantially L shape. The cover 50 includes the lock / unlock switching mechanism accommodating portion of the accommodating case 49A. 52 is coupled to the housing case 49A. Thus, the first case 26 is attached to the second case 27A so that the back plate 30 is covered with the housing case 49A of the second case 27A.

  Incidentally, an open lever 53 disposed below the latch mechanism 23 so as to rotate in response to an input to the door opening operation force by the outside handle is provided with a latch 40, a ratchet 41, and a ratchet lever 43 in the latch mechanism 23. The second case 27A is rotatably supported by a support shaft 54 having a base line fixed to the second case 27A and having an axis parallel to the rotation axis. In this embodiment, the housing case in the second case 27A is supported. The support shaft 54 is integrally provided in the latch mechanism accommodating portion 51 of 49A. A return spring 55 is provided between the housing case 49A in the second case 27A of the casing 25A and the open lever 53.

  On the other hand, the back plate 30 of the first case 26 is integrally provided with a shaft support portion 56 that protrudes laterally (downward in this embodiment) from the case main body 28 of the first case 26. A bearing hole 57 for fitting and supporting the distal end portion is provided in the shaft support portion 56. The housing case 49 </ b> A is provided with an annular wall 59 that coaxially surrounds the support shaft 54 by forming an annular groove 58 with the support shaft 54.

  Referring also to FIG. 6, the open lever 53 has a lever main portion 53a formed so as to be substantially along a plane perpendicular to the axis of the support shaft 54, and a door opening operation force from the outside handle. A cable connecting portion 53b provided at one end of the lever main portion 53a so as to connect a cable to be transmitted, and the support shaft 54 are inserted, and the lever is rotatably fitted in the annular groove 58. A base end is provided at the other end of the lever main portion 53a so as to sandwich the support shaft 54 between a cylindrical support tube portion 53c provided integrally with the main portion 53a at a right angle and the cable connecting portion 53b. The locking plate portion 53d is integrally provided with the locking plate portion 53d, and the locking plate portion 53d is arranged along another plane that obliquely intersects with the plane along which the lever main portion 53a substantially extends. The Extending from serial lever main portion 53a in the second case 27A.

  Further, the latch mechanism accommodating portion 51 of the accommodating case 49A in the second case 27A is provided with an opening 60 for projecting one end side of the lever main portion 53a of the open lever 53 to the outer surface side of the door D, and a cable connecting portion. 53b is arranged on the outer side of the casing 25A.

  Incidentally, the return spring 55 provided between the housing case 49 </ b> A and the open lever 53 is formed in a coil shape surrounding the annular wall 59, and the locking plate portion 53 d of the open lever 53 is located outward of the return spring 55. Be placed. One end of the return spring 55 is locked to the housing case 49A at the opening edge of the opening 60, and the other end of the return spring 55 is one side edge of the intermediate portion of the locking plate portion 53d. It is latched by the latching groove 61 provided in the.

  Thus, when the open lever 53 is assembled, first, as shown in FIG. 6A, the return spring 55 is placed in the housing case 49A so as to surround the annular wall 59 and to lock one end to the housing case 49A. 6B, the tip end portion of the support shaft 54 is inserted into the support cylinder portion 53c of the open lever 53 in which the cable connecting portion 53b protrudes outward from the opening 60 in a state of being temporarily assembled to the side. ), The open lever 53 is pushed in until the other end portion of the return spring 55 is engaged with the side edge of the engagement plate portion 53d of the open lever 53, and the support cylinder portion 53c is fitted in the annular groove 58. When the open lever 53 is pushed in, the other end portion of the return spring 55 is locked in the locking groove 61 guided by the side edge of the locking plate portion 53d.

  3 and 5, a support arm portion 56 a extending in a direction substantially parallel to the support shaft 54 is integrally connected to the shaft support portion 56 provided integrally with the back plate 30 of the first case 26. The support arm portion 56a is disposed at a position that defines a rotation limit of the open lever 53 biased by the return spring 55 in the input state of the door opening operation force. In the input state of the door opening operation force, the open lever 53 abuts against the other end side of the lever main portion 53a to restrict the rotation limit of the open lever 53.

  An engaging claw 63 that elastically engages with an engaging hole 62 provided in the latch mechanism accommodating portion 51 of the accommodating case 49A in the second case 27A is integrally provided at the tip of the support arm portion 56a. Thus, the cover plate 29 of the first case 26 has a pair of engagement holes 65, 65 for elastically engaging the pair of engagement protrusions 64, 64 provided on the cover 50 in the second case 27A. One screw member 66 (see FIG. 3) provided so as to be positioned on both sides of the entry groove 34 and inserted into the latch mechanism housing portion 51 of the housing case 49A in the second case 27A is a back plate in the first case 26. 30.

  That is, the first case 26 has one elastic engagement to the engagement hole 62 of the engagement claw 63, one elastic engagement to the two engagement holes 65 of the two engagement projections 64, It is attached to the second case 27 </ b> A by fastening with the screw member 66.

  7 and 8, the lock / unlock switching mechanism 24 is in a state in which an unlocking operation force is input to the input arm portion 43 a of the ratchet lever 43 in the latch mechanism 23 according to the rotation of the open lever 53. , Which switches the state where the input of the unlocking operation force to the input arm portion 43a of the ratchet lever 43 is disabled in spite of the rotation of the open lever 53, and is provided in the housing case 49A. A switching power input member 68 rotatably supported by a shaft 67, a locking lever 69 superimposed on the switching power input member 68 and rotatably supported by the shaft 67, the locking lever 69 and the open An open link 70 connected to the lever 53, and the locking lever 69 rotates together with the switching power input member 68. Engaged in switching power input member 68 so as to.

  The open link 70 enables a linear operation accompanying the rotation of the open lever 53, and a long hole 71 extending along the linear operation direction is provided in the open link 70, and the locking A pin 72 inserted through the elongated hole 71 is provided at a position offset from the axis of the shaft 67 of the lever 69, and the open link 70 is rattled with the open link 70 interposed between the pin 72 and the pin 72. A restraining projection 73 for restraining is projected.

  Referring also to FIG. 9, one end of the open link 70 is rotatably connected to the open lever 53 so that the open link 70 operates linearly as the open lever 53 rotates. The link side connecting portion 74 provided at one end of the open link 70 can be engaged with and disengaged from the lever side connecting portion 75 provided in the open lever 53 and the open link 70 can be rotated. Engaged as.

  A lever-side connecting portion 75 formed in a substantially T-shape is integrally provided at the tip of the locking plate portion 53 d of the open lever 53, and the link-side connecting portion 74 is a lever-side connecting portion 75. Is formed at one end of the open link 70 so that it can be inserted and engaged.

  Thus, when one end of the open link 70 is pivotally connected to the open lever 53, first, as shown in FIG. 9A, the open lever 53 and the locking lever 69 are attached to the 25 accommodating cases 49A. 9B, the pin 72 of the locking lever 69 is inserted into the long hole 72 of the open link 70, and the open link 70 is inserted between the holding protrusion 73 of the locking lever 69 and the pin 72. As shown in FIG. Further, as shown in FIG. 9C, the link-side connecting portion 74 provided at one end of the open link 70 is operated by the open lever 53 by rotating the open link 70 around the axis of the pin 72. It engages with the lever side connecting part 75 provided in the detachable manner.

  In addition, by engaging the lever-side connecting portion 75 of the open lever 53 with the link-side connecting portion 74 of the open link 70 so as to be rotatable, the open link 70 operates linearly according to the rotation of the open lever 53. As a result, the unlocking posture (the posture shown in FIG. 7) that allows the unlocking operation force to be input to the input arm portion 43a of the ratchet lever 43 in the latch mechanism 23 and the rotation of the open lever 53 are supported. Accordingly, even if it is operated linearly, between the unlocking posture (the posture shown in FIG. 8) in which it is impossible to input the unlocking operation force to the input arm portion 43a of the ratchet lever 43 in the latch mechanism 23. The open link 7 can be rotated by rotating the locking lever 69 and rotating the pin 72 around the axis of the shaft 67. The attitude will change between the lock releasable position and the unlocking disabled attitude.

  That is, the open link 70 is provided with a pressing portion 76 that faces the input arm portion 43a of the ratchet lever 43 in the linear operation direction of the open link 70 when in the unlockable posture. When the open link 70 is in the unlocking posture, even if the open link 70 is linearly operated, the unlocking operation force is applied to the input arm only by passing the position shifted to one side of the input arm portion 43a. The position cannot be input to the portion 43a.

  In the second case 27A of the casing 25A, there is housed an electric motor 77 that can be rotated forward and backward so as to be fixed to the housing case 49A of the second case 27A, and the electric motor 77 and the switching power input. Between the members 68, there are a worm gear 78 provided on the main shaft of the electric motor 77 and a worm wheel 79 meshing with the worm gear 78 so as to be rotatable about an axis parallel to the rotation axis of the switching power input member 68. Power transmission means 80 is provided, and this power transmission means 80 can transmit power from the electric motor 77 to the switching power input member 68, but from the switching power input member 68 to the electric motor 77 side. Is configured so that no power is transmitted.

  Thus, the electric motor 77 is used in a smart key system. By using the smart key, the unlockable posture and the unlockable posture of the open link 70 are automatically set by the operation of the electric motor 77. Can be switched.

  A knob lever that is pivotally supported on the housing case 49A via a shaft 81 that has an axis parallel to the shaft 67 and that is disposed below the shaft 67 is provided below the switching power input member 68. One end of 82 is connected, and the other end of the knob lever 82 is connected to a push-pull cable 83 that transmits an operation force of a lock operation knob (not shown) provided on the inner surface side of the door D on the vehicle compartment side. Is done. Thus, by operating the lock operation knob, the switching dynamic power input member 68 and the locking lever 69 are rotated via the knob lever 82, and the posture of the open link 70 is also changed to the unlockable posture and the unlocking impossible. It will change between postures.

  An input lever 84 is rotatably supported on the cover 50 in the second case 27A in the vicinity of the open lever 53 via a shaft 87 having an axis perpendicular to the rotation axis of the open lever 53. The lever 84 is provided with a pressing portion 84 a that is in contact with one end portion of the open link 70 and can press the open link 70. Moreover, the input lever 84 is connected to a push-pull cable 85 that transmits an operating force of an inside handle (not shown) provided on the inner surface side of the door D on the vehicle interior side. Thus, by operating the inside handle, the input lever 84 rotates so as to press the open link 70 by the pressing portion 84a, and the open link 70 is pressed between the cover 50 and the input lever 84. A torsion spring 86 for urging the input lever 84 is provided on the side for releasing the force.

  Further, the upper part of the switching power input member 68 is a locking member rotatably supported on the housing case 49A via a shaft 88 having an axis parallel to the shaft 67 and disposed above the shaft 67. One end of the control lever 89 is connected, and rotational power is input to the other end of the locking control lever 89 from a cylinder lever 90 which is an input rotational member.

  Referring also to FIG. 10, the cylinder lever 90 is rotatably supported by a support protrusion 91 provided in the housing case 49 </ b> A of the second case 27 </ b> A in the casing 25 </ b> A and corresponds to the support protrusion 91. A rotating base 90a supported by the second case 27A so as to be rotatably fitted in a support hole 92 provided in the cover 50 of the second case 27A, and a circumferential direction of the rotating base 90a Projecting from a pair of pressing arm portions 90b, 90c that project from the opposite sides of the locking control lever 89 from both sides and projecting from the cover 50 of the second case 27A. A connecting shaft portion 90d that is coaxially connected to the center of the base portion 90a is integrally formed, and the connecting shaft portion 90d is formed so that the cross-sectional shape thereof is non-circular, for example, a quadrangular shape.

  Thus, when the cylinder lever 90 rotates, one of the pressing arm portions 90b and 90c presses the other end of the locking control lever 89, so that the locking control lever 89 rotates. When the control lever 89 is rotated, the switching dynamic power input member 68 and the locking lever 69 are rotated, so that the posture of the open link 70 is changed between the unlockable posture and the unlockable posture. become.

  7 and 8, in the housing case 49A of the second case 27A in the casing 25A, a position detection switch 93 that switches the switching mode according to the rotation of the locking control lever 89, and the cylinder lever 90 A switch set unit 95 including a switch (not shown) for detecting the rotation position of the motor is fixed so as to be positioned in the vicinity of the electric motor 77. The switch set unit 95 includes the position detection switch. 93 and a connector 96 connected to the electric motor 77 are integrally provided, and a circular connector connection hole 97 (see FIG. 2) for allowing the connector 96 to face the cover 50 of the second case 27A in the casing 25A. Is provided.

  Referring also to FIG. 11, the rotational force transmission means 18 includes a driven-side rotating member 100 that is coaxially and detachably connected to the connecting shaft portion 90 d of the cylinder lever 90 so as not to be relatively rotatable. It has an axis parallel to the rotation axis of the driven side rotation member 100 and is disposed at a position separated from the driven side rotation member 100 and is coaxial with the other end portion of the rotation rod 17 so as not to be relatively rotatable. A driving side rotating member 101 that is connected to the driving side rotating member 101 in a detachable manner, and a driving side and a driven side rotating member 101 that transmit rotational force from the driving side rotating member 101 to the driven side rotating member 100; A transmission rod 102 as a transmission member provided between 100 is housed in an extension case 103 that rotatably supports the driven side rotation member 100 and the drive side rotation member 101.

  The extension case 103 is formed by coupling the first and second case halves 104 and 105 to each other, and extends upward from the second case 27A to the second case 27A of the casing 25A. Can be detachably attached.

  Meanwhile, the entire second case half 105 is formed flat, whereas the first case half 104 is formed so as to have a flat portion 104a in the lower part thereof. On the other hand, a recess 106 for fitting the lower portion of the extension case 103 is formed in the upper portion of the cover 50 in the second case 27A, and the lower portion of the extension case 103 has the flat portion 104a of the first case half 104 in the cover 50. It fits in the said recessed part 106 so that it may overlap, for example, is attached to the 2nd case 27A by a pair of screw member 107,107. Thus, when the extension case 103 is attached to the second case 27A, both sides of the extension case 103 are substantially flush with both sides of the second case 27A.

  The flat portion 104a of the first case half 104 is provided with a support hole 108 corresponding to the support hole 92 provided in the cover 50 of the second case 27A, and the driven-side rotating member 100 has its support hole 108. Is supported by fitting. Moreover, the driven-side rotating member 100 is provided with a connecting recess 109 for fitting the connecting shaft portion 90d of the cylinder lever 90 so as not to be relatively rotatable.

  A support protrusion 110 is integrally formed on the upper inner surface of the second case half 105, and a flat support surface 111 is formed at the protrusion end of the support protrusion 110. Is provided with a semicircular support recess 112. A guide tube 113 having an axis orthogonal to the support surface 111 is integrally provided on the upper portion of the first case half 104 so as to open both ends. A fitting support hole 114 in which the other end side of the driving side rotating member 101 whose one end is in sliding contact with the support surface 113 is rotatably fitted, and the other end of the driving side rotating member 101 is in sliding contact. In this manner, a step portion 115 is provided which is connected to the outer end of the fitting support hole 114, and a semicircular protrusion 116 fitting to the support recess 112 is provided at one end of the driving side rotating member 101. The

  Thus, the drive-side rotating member 101 is rotatably supported on the upper part of the extension case 103, and the drive-side rotating member 101 is connected to the drive-side rotating member 101 so as to open outward in the guide tube 113. The concave portion 117 is provided so as to have a non-circular cross-sectional shape, and the other end portion of the rotating rod 17 that transmits the rotational force accompanying the key operation of the cylinder lock 15 cannot be relatively rotated with respect to the connecting concave portion 117. Mated.

  The driven-side rotating member 100 and the driving-side rotating member 101 are provided with connecting arm portions 100a and 101a, respectively, and both ends of the transmission rod 102 are connected to the connecting arm portion 101a of the driving-side rotating member 101 and the aforementioned It is engaged with the connecting arm portion 100 a of the driven side rotation member 100.

  In this embodiment, the first engagement hole 120 is provided in the connection arm portion 101a of the drive side rotation member 101 in one of the connection arm portion 101a of the drive side rotation member 101 and the connection arm portion 100a of the driven side rotation member 100. In this embodiment, the first engaging hole is formed in the connecting arm portion 100a of the driven-side rotating member 100, in addition to the connecting arm portion 101a of the driving-side rotating member 101 and the connecting arm portion 100a of the driven-side rotating member 100. A second engagement hole 121 having an axis parallel to 120 and an insertion hole 122 that crosses an intermediate portion of the second engagement hole 121 at a right angle are provided.

  Referring also to FIG. 12, a rod-shaped first engagement portion 102a that is detachably engaged with the first engagement hole 120 is provided integrally and continuously at one end of the transmission rod 102. In addition, a second engagement portion 102 b that is detachably engaged with the second engagement hole 121 is integrally provided at the other end portion of the transmission rod 102.

  The second engaging portion 102b is formed along the one diameter line of the transmission rod 102 so as to crush a part of the other end side of the transmission rod 102 of the first engaging portion 102a. When viewed from the direction along the axis of 102, both ends of the second engaging portion 102 b protrude laterally from the outer periphery of the transmission rod 102. In addition, as shown in FIG. 12A, the second engagement portion 102b has the first engagement portion 102a arranged on a plane perpendicular to the axes of the first and second engagement holes 120 and 121, as shown in FIG. When it is in the first posture, it can be inserted into the insertion hole 122, and as shown in FIG. 12 (B), the transmission rod 102 in a state where the second engagement portion 102b is inserted into the insertion hole 122, As shown in FIG. 12C, when the second posture rotated 90 degrees from the first posture is formed, the second engagement hole 121 is engaged.

  Next, the operation of this embodiment will be described. In the casing 25A of the door lock device 16A, the case main body 28, which is formed in a box shape with synthetic resin so that the latch mechanism 23 is inserted, is made of a metal cover plate 29 and a back. A state in which the first case 26 sandwiched between the plates 30 inputs the unlocking operation force to the latch mechanism 23 according to the rotation of the open lever 53 that rotates according to the input of the door opening operation force, and the open lever 53. The back plate 30 is attached to a second case 27A made of a synthetic resin that houses a lock / unlock switching mechanism 24 that switches the state in which the unlocking operation force cannot be input to the latch mechanism 23 despite the rotation of 2 A base of a support shaft 54 that is mounted so as to be covered with a case 27A and supports the open lever 53 so as to be rotatable. The front end of the support shaft 54 is fitted to the shaft support 56 that is fixed to the housing case 49A of the second case 27A and protrudes laterally from the case main body 28 so as to be integrated with the back plate 30. The bearing hole 57 to support is provided.

  Therefore, the tip end portion of the synthetic resin support shaft 54 whose base end portion is fixed to the housing case 49A of the second case 27A is fitted and supported in the bearing hole 57 of the metal shaft support portion 56. Thus, the support strength of the support shaft 54 can be increased.

  An engaging claw that elastically engages with the housing case 49A of the second case 27A at the tip of a supporting arm portion 56a that is integrally connected to the shaft supporting portion 56 so as to extend in a direction substantially parallel to the support shaft 54. 63 is provided, the back plate 30 of the first case 26 and the second case 27A are connected around the support shaft 54, so that the support strength of the support shaft 54 can be further increased, and the operating force is increased. It is possible to prevent the support shaft 54 from being deformed by being input to the open lever 53, and to prevent the support shaft 54 from rattling or falling off.

  Further, since the support arm portion 56a is arranged at a position where it abuts against the open lever 53 so as to determine the rotation limit of the open lever 53 in the input state of the door opening operation force, the support arm portion 56a is opened in the input state of the operation force. By restricting the rotation limit of the lever 53 with the support arm portion 56a, it is possible to eliminate the need for providing a dedicated restricting portion for restricting the rotation limit of the open lever 53.

  By the way, the lock / unlock switching mechanism 24 can be operated linearly according to the rotation of the open lever 53, and has an open link 70 whose one end is connected to the open lever 53, and the open link 70 is not operated. A return spring 55 for urging the open lever 53 is provided on the side to be positioned, and the housing case 49A in the second case 27A of the casing 25A is provided between the support shaft 54 and the support shaft 54. An annular wall 59 is provided to form an annular groove 58 and coaxially surround the support shaft 54, and a cylindrical support cylinder portion 53 c into which the support shaft 54 is inserted is rotatably fitted in the annular groove 58. Thus, the return spring 55 provided between the housing case 49A and the open lever 53 is formed in a coil shape surrounding the annular wall 59. Therefore, in the state where the coiled return spring 55 is disposed so that one end is locked to the housing case 49A and surrounds the annular wall 49, the support cylinder portion is formed in the annular groove 58 between the support shaft 54 and the annular wall 59. The operation of locking the other end of the return spring 55 to the open lever 53 is performed after the open lever 54 is assembled to the housing case 49A so that the support shaft 54 is inserted into the support cylinder 53c. By doing so, the open lever 53 and the return spring 55 can be assembled, and the assembly work of the return spring 55 can be facilitated.

  The open lever 53 includes a lever main portion 53a formed so as to be substantially along a plane perpendicular to the axis of the support shaft 54, a support cylinder portion 53c having a base end portion continuously provided on the lever main portion 53a, A locking plate portion 53d that is continuous with the lever main portion 53a and is arranged on the outer side of the return spring 55 along the other plane intersecting the plane is integrally provided, and the other end portion of the return spring 55 is locked. Since the engaging groove 61 is provided at one side edge of the intermediate portion of the engaging plate portion 53d, when the open lever 53 is assembled to the housing case 49A so that the support shaft 54 is inserted into the supporting cylinder portion 53c. When the other end portion of the return spring 55 is brought into contact with the one side edge of the locking plate portion 53d, the other end portion of the return spring 55 is locked by assembling the open lever 53 to the housing case 49A. Automatically locked in the groove 61 Becomes, assembling operation of the return spring 55 becomes easier.

  Further, the open link 70 is provided with a long hole 71 extending along the linear operation direction while enabling a linear operation accompanying the rotation of the open lever 53, and the unlocking operation force by the linear operation. Rotation between the unlockable posture enabling the input to the latch mechanism 23 and the unlockable posture where the unlocking operation force cannot be input to the latch mechanism 23 also by the linear operation. One end of the open lever 53 is pivotally connected to the open lever 53, and a locking lever 69 is pivotally supported on the housing case 49A of the second case 27A of the casing 25A. The locking lever 69 is provided with a pin 72 inserted through the long hole 71. Thus, as the locking lever 69 rotates, the posture of the open link 70 is switched between the unlockable posture and the unlockable posture.

  However, the link-side connecting portion 74 provided at one end of the open link 70 and the lever-side connecting portion 75 provided in the open lever 53 are linked to the link according to the rotation of the open link 70 around the pin 72. The side connecting portion 74 is detachably engaged with the lever side connecting portion 75, and the open link 70 can be rotated between the unlockable posture and the unlockable posture in the engaged state. The pin 72 provided on the locking lever 69 is inserted into the long hole 71 of the open link 70 in a state where the open lever 53 and the locking lever 69 are supported by the second case 27A of the casing 25A. By rotating the open link 70 around the axis of the pin 72, it is provided at one end of the open link 70. The link side connecting portion 74 engaged with the lever side connecting portion 75 provided in the open lever 53 is detachably engaged, and the open link 70 switches between the unlockable posture and the unlockable posture in the engaged state. Therefore, the operation | work which connects the one end part of the open link 70 to the open lever 53 becomes very easy.

  Further, the rotational force of the rotor 21 that rotates in response to the key operation of the cylinder lock 15 attached to the outer surface side of the door D is not allowed to rotate relative to the cylinder lever 90 of the door lock device 16A and to the rotor 21 at one end. The rotation is transmitted via the coupled rotation rod 17 and the rotational power transmission means 18, and the rotational power transmission means 18 cannot rotate relative to the cylinder lever 90 provided in the lock / unlock switching mechanism 24 of the door lock device 16A. A driven-side rotating member 100 that is coaxially and detachably connected, and has an axis parallel to the rotating axis of the driven-side rotating member 100 and is disposed at an upper position separated from the driven-side rotating member 100. And a driving-side rotating member 101 that is coaxially and detachably connected to the other end of the rotating rod 17 so as to be relatively unrotatable, and the driven-side rotating member 1 from the driving-side rotating member 101. The transmission rod 102 provided between the driving side and the driven side rotating members 101 and 100 so as to transmit the rotational force to 0 enables the driven side rotating member 100 and the driving side rotating member 101 to rotate. The extension case 103 is housed in a supporting extension case 103, and the extension case 103 is detachably attached to the casing 25A of the door lock device 16A so as to extend from the casing 25A.

  Accordingly, by preparing the rotational power transmission means 18 corresponding to the relative positions of the cylinder lock 15 and the lock / unlock switching mechanism 24 of the door lock device 16A, the rotational power from the cylinder lock 15 is transmitted via the rotating rod 17. This can be transmitted to the cylinder lever 90 of the lock / unlock switching mechanism 24, and the degree of freedom in layout of the lock / unlock switching mechanism 24 in the door lock device 16A for the cylinder lock 15 can be increased.

  Moreover, the extension case 103 of the rotational power transmission means 18 is detachably attached to the casing 25A of the door lock device 16A. The rotational power transmission means 18 is used to change the relative positions of the cylinder lock 15 and the lock / unlock switching mechanism 24. The lock / unlock switching mechanism 24 only needs to be the same, and an increase in the size of the lock / unlock switching mechanism 24 can be avoided.

  Here, as shown in FIG. 13, when the door lock device 16 </ b> B is attached to the door D substantially corresponding to the cylinder lock 15, the second case 27 </ b> B of the casing 25 </ b> B of the door lock device 16 </ b> B is configured together with the cover 50. A guide cylinder 125 is provided in the lock / unlock switching mechanism accommodating portion 52B of the case 49B corresponding to the cylinder lever 90 (see FIGS. 7 and 8) accommodated in the lock / unlock switching mechanism accommodating portion 52B. What is necessary is just to connect the transmission rod 17 to the cylinder lever 90 in the guide cylinder 125 so that relative rotation is impossible.

  Further, the driving side rotating member 101 and the driven side rotating member 100 are provided with connecting arm portions 101a and 100a, respectively, and both end portions of the transmission rod 102 are engaged with the connecting arm portions 101a and 100a. The configuration of the rotational power transmission means 18 can be simplified, and the relative position change of the cylinder lock 15 and the lock / unlock switching mechanism 24 can be easily dealt with by the change of the length of the transmission rod 102.

  Furthermore, a first engagement hole 120 is provided in the connecting arm portion 101a of one of the driving side and driven side rotating members 101, 100 (in this embodiment, the driving side rotating member 101), and the driving side and driven side members 101, 100 are provided. The second engagement hole 121 having an axis parallel to the first engagement hole 120 and the middle of the second engagement hole 121 are formed in the connecting arm portion 100a of the other 100 (the driven side rotation member 100 in this embodiment). And a rod-shaped first engagement portion 102a that is detachably engaged with the first engagement hole 120 is integrally and perpendicularly connected to one end of the transmission rod 102. The other end of the transmission rod 102 is integrally provided with a second engagement portion 102 b that is detachably engaged with the second engagement hole 121, and the second engagement portion 102 b is connected to the transmission rod 102. Is the axis of the first and second engagement holes 120, 121 When the first engagement portion 102a is disposed in a square plane, the transmission rod 102 can be inserted into the insertion hole 122 and the second engagement portion 102b is inserted into the insertion hole 122 in the first posture. When the second posture rotated 90 degrees from the first posture is formed to engage with the second engagement hole 121.

  Therefore, after inserting the 2nd engaging part 102b in the insertion hole 122 in the state which made the transmission rod 102 into the 1st attitude | position, the 2nd engaging part 102b of the transmission rod 102 is made by setting the transmission rod 102 to the 2nd attitude | position. Can be engaged with the connecting arm portion 100 a of the driven-side rotating member 100. In addition, in a state where the driving side and the driven side rotating members 101, 100 are connected by the transmission rod 102, the first engagement portion 102a at one end of the transmission rod 102 is separated from the first engagement hole 120. The engagement portion 102b is blocked by being inserted into the insertion hole 122, and the posture of the transmission rod 102 is changed so that the second engagement portion 102b at the other end of the transmission rod 102 is detached from the second engagement hole 121. The change from the second posture to the first posture is prevented by the first engagement portion 102a being inserted into and engaged with the first engagement hole 120, so that the transmission rod 102 is driven and driven. There is no need for a special component for preventing the separation from the side rotating members 101, 100, and the drive side and driven side rotating members 101, 100 of the transmission rod 102 are avoided while avoiding an increase in the number of components. The sintered state can be reliably maintained.

  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 which shows the connection state of the cylinder lock and door lock apparatus in the door for vehicles. FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1. FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. FIG. 4 is a sectional view taken along line 4-4 of FIG. It is a disassembled perspective view of a latch mechanism and a lock / unlock switching mechanism. FIG. 6 is a perspective view of the vicinity of an open lever that sequentially shows an assembly process of the open lever. FIG. 3 is a view seen from the same direction as in FIG. 2, omitting a part of the casing and the extension case when the lock / unlock switching mechanism is in the unlocked state. FIG. 3 is a view seen from the same direction as in FIG. 2, omitting a part of the casing and the extension case when the lock / unlock switching mechanism is in a locked state. FIG. 8 is a perspective view sequentially illustrating a connecting process of a locking lever and an open lever as viewed from the direction of arrow 9 in FIG. 7. It is the 10-10 line expanded sectional view of FIG. It is a disassembled perspective view of a rotational power transmission means. It is a perspective view for showing sequentially a connection process of a transmission rod to a driven side rotation member. FIG. 3 is a side view corresponding to FIG. 1 when a rotational force transmission means is unnecessary.

Explanation of symbols

16A, 16B ... Door lock device 23 ... Latch mechanism 24 ... Lock / unlock switching mechanism 26 ... First case 27A, 27B ... Second case 28 ... Case main body 29 ... Cover plate 30 ... Back plate 53 ... Open lever 54 ... Support shaft 56 ... Shaft support portion 56a ... Support arm portion 57 ... Bearing hole 63 ... Engagement claw D ··door

Claims (3)

  It is possible to switch between the locked state in which the door (D) cannot be opened and the unlocked state in which the door (D) can be opened, and the unlocked state according to the input of the unlocking operation force in the locked state. The latch mechanism (23) accommodated in the first case (26) in such a manner, the open lever (53) that rotates in response to the input of the door opening operation force, and the rotation of the open lever (53) Accordingly, the unlocking operation force cannot be input to the latch mechanism (23) regardless of the state in which the unlocking operation force is input to the latch mechanism (23) and the rotation of the open lever (53). And a lock / unlock switching mechanism (24) accommodated in the second case (27A, 27B) made of synthetic resin so as to switch the state to be, the first case (26), A case main body (28) formed in a box shape with a synthetic resin so that the latch mechanism is inserted, a metal cover plate (29) for closing the opening of the case main body (28), and the cover plate ( 29) and a metal back plate (30) sandwiching the case main body (28) between the first case (26) and the second case (27A, 27B). In the vehicle door lock device attached to the second case (27A, 27B) so as to cover, the base end portion of the support shaft (54) that rotatably supports the open lever (53) is the second case (27A). 27B) and a shaft support portion (56) provided integrally with the back plate (30) so as to protrude laterally from the case main body (28). Fitting an end portion, the vehicle door lock device, characterized in that the bearing hole (57) is provided for supporting.   The second case (27A, 27B) is elastically attached to the tip of a support arm (56a) integrally connected to the shaft support (56) so as to extend in a direction substantially parallel to the support shaft (54). The vehicle door lock device according to claim 1, further comprising an engaging claw (63) for engaging and disengaging.   The support arm portion (56a) is disposed at a position that contacts the open lever (53) so as to define a rotation limit of the open lever (53) in an input state of the door opening operation force. The vehicle door lock device according to claim 2.

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