JP6099971B2 - Door lock device - Google Patents

Description

  The present invention relates to a door lock device.

  A door lock device for a vehicle includes a link mechanism in addition to a latch mechanism that detachably engages a striker on the vehicle body side. The link mechanism has an opening mechanism that releases the engagement between the latch mechanism and the striker by the operating force of the open lever, and the lock mechanism can be moved to a lock position where it cannot be operated by the locking operation, and the latch mechanism can be operated by the unlocking operation. And a lock mechanism that moves to an unlock position.

  Conventionally, an open lever that is a part of an opening mechanism is pivotally supported in a housing. Then, one end of the open lever is connected to the door handle via a connecting member such as a rod, and the operation of the door handle is transmitted to the latch mechanism via the lock mechanism as the open lever rotates in conjunction with the door handle. .

  In the door lock device described in Patent Literature 1, the open lever is pivotally supported on the housing by caulking and fixing a shaft member such as a pin. Alternatively, a configuration may be adopted in which the shaft hole of the open lever is inserted into the shaft portion of the housing and then screwed. As a result, the movement of the open lever in the axial direction is restricted to prevent it from coming out of the housing.

  However, in the pivot lever support structure employed in the open lever included in the door lock device of Patent Document 1, it is necessary to fix the open lever (rotation lever) by caulking or fixing with screws. There was a problem that the assembly man-hours were large and complicated.

JP 2001-262904 A

  An object of the present invention is to provide a door lock device capable of easily and reliably assembling a rotating lever.

In order to solve the above-mentioned problem, the pivot lever support structure of the door lock device of the present invention is:
A latch mechanism detachably engaged with the striker;
A housing in which the latch mechanism is disposed;
A pivot lever pivotally supported by the housing;
In a door lock device comprising:
The rotating lever includes a shaft portion projecting outward, and a projecting portion projecting radially from the shaft portion,
The housing has a pair of bearing grooves having an opening into which the shaft portion is inserted, and a cross section perpendicular to the axis of the bearing groove facing the opening and having an arc shape , and is in contact with the outer end surface of the protruding portion. And a sliding contact portion in contact therewith.

  When the rotating lever is assembled to the housing, the protruding portion is inserted toward the bearing groove of the holding portion with the tip of the protruding portion facing the sliding contact portion. Then, the tip of the protruding portion moves along the inner peripheral surface of the sliding contact portion, and the shaft portion is guided from the opening portion to the bearing groove. And the assembly | attachment to a housing is completed by inserting the axial part of a rotation lever in a bearing groove, and rotating a rotation lever. In this way, the rotating lever can be easily pivoted on the housing and attached with one touch by simple assembly.

  When the shaft portion of the rotating lever is inserted into the bearing groove and supported by the shaft, the sliding contact portion is located opposite to the outer end surface of the protruding portion, so that the rotating lever moves to the opening side. Is prevented, and the shaft portion is prevented from coming out of the bearing groove.

The sliding contact portion includes a first end located above the opening, and a second end opposite to the first end,
Preferably, the second end portion is provided at a predetermined interval in the horizontal direction from the bearing groove.

  By providing the second end portion at a predetermined interval in the horizontal direction from the bearing groove, the shaft portion of the rotating lever moved along the inner peripheral surface of the sliding contact portion can be inserted into the bearing groove through the opening. .

The sliding contact portion includes a first end located above the opening and a second end opposite to the first end, and the horizontal position of the first end is determined by the opening. It is preferable that it exists in the range of the width of a part.
As a result, the shaft portion of the rotating lever can be easily inserted into the bearing groove from the side of the first end portion, and the outer end surface of the protruding portion of the rotating lever that is pivotally supported by the bearing groove is surely brought into the sliding contact portion. It is possible to prevent the rotating lever from coming out of the bearing groove by abutting.

  It is preferable that the sliding contact portion bends from above the bearing groove along a trajectory when the rotating lever is rotated. Thereby, the sliding contact portion can reliably prevent the shaft portion of the rotating lever from coming out of the bearing groove with a simple configuration, and the manufacturing cost of the lever shaft support structure of the door lock device can be reduced.

The rotating lever is an open lever of a link mechanism that opens the latch mechanism;
The sliding contact portion is a rotation range of the open lever between an initial position where the door handle is in a non-operating state and an operating position where the engagement of the striker by the latch mechanism is released by opening the door handle. It is preferable to be provided over.

  With the above configuration, it is possible to prevent the shaft portion of the turning lever from coming out of the bearing groove in the turning range of the turning lever.

  Preferably, the housing is provided with a restricting portion that prevents the protrusion of the rotation lever from rotating in a direction away from the sliding contact portion.

  The restricting portion prevents the protruding portion of the rotating lever from rotating in the direction away from the sliding contact portion, so that the contact state between the protruding portion and the sliding contact portion can be maintained, and the rotating lever can be reliably The shaft support state can be maintained.

  In the present invention, since the sliding contact portion is provided in the housing, the rotating lever can be slidably contacted with the sliding contact portion and inserted into the bearing groove, and can be easily assembled. Further, the rotating lever can be prevented from coming out of the bearing groove by coming into contact with the sliding contact portion, and the assembly can be reliably performed.

The exploded perspective view of the door lock device of the embodiment concerning the present invention. The exploded perspective view of a housing. The exploded perspective view of the housing seen from a different direction. The front view of a 1st housing part. The perspective view from the upper side of the inner surface side of a fence block. The perspective view from the lower side of the inner surface side of a fence block. The partial expanded sectional view of the 2nd axis support part. (A) is a perspective view of an inner open lever, (B) is a front view of (A). The front view which shows the lock mechanism and unlocking mechanism of the unlock position which were arrange | positioned in the 1st arrangement | positioning part. The front view which shows the lock mechanism and release mechanism of the lock position which were arrange | positioned in the 1st arrangement | positioning part. The front view which shows the switching mechanism of the unlocking operation position arrange | positioned in the 2nd arrangement | positioning part. The front view which shows the switching mechanism of the lock operation position arrange | positioned in the 2nd arrangement | positioning part. (A) is sectional drawing which shows the state which has inserted the inner open lever in the 2nd axial support part, (B) is sectional drawing which shows the state which inserted the axial part of the inner open lever in the bearing groove of the 2nd axial support part. (A) is sectional drawing which shows the initial position where the inner open lever is hold | maintained at the 2nd shaft support part, (B) is sectional drawing which shows the state which exists in the operation position which an inner open lever operates a link.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a door lock device 10 according to an embodiment of the present invention. The door lock device 10 is mounted inside a vehicle door (not shown) and closes the door with respect to the vehicle body. In the closed state, the door lock device 10 switches between an unlocked state in which the door can be opened and a locked state in which the door cannot be opened. .

  The door lock device 10 includes a latch mechanism 43 and a link mechanism, which are disposed in the housing 11. The link mechanism includes a lock mechanism 53, an opening mechanism 64, and a switching mechanism 79. In the present embodiment, the sliding contact portion 31 is provided on the fence block 25 that constitutes the housing 11, and the inner open lever 70 that is a rotation lever that constitutes the opening mechanism 64 can be easily assembled to the fence block 25.

  2 and 3 together, the housing 11 includes a housing main body 14 having an L shape in plan view, and a fence block 25 and a cover member 39 that are respectively attached to the housing main body 14.

  The housing main body 14 is made of resin, and includes a first disposing portion 15 disposed inside an end portion opposite to the hinge of the door, and a second disposing portion 17 disposed along the door. The first arrangement portion 15 covers the inner surface side of the fence block 25. A holding hole 16 that holds the distal end portion of the first shaft support portion 26 of the fence block 25 is provided below the first placement portion 15.

  A switching mechanism 79 is provided in the second arrangement part 17. On the upper side of the second arrangement portion 17, a key rotor arrangement hole 18 and a key lever support shaft portion 19 are provided. A switching lever support portion 20 is provided below the key lever support shaft portion 19 at a position adjacent to the first arrangement portion 15. A wheel gear arrangement portion 21 is provided below the switching lever support portion 20. A motor arrangement portion 22 is provided adjacent to the side of the wheel gear arrangement portion 21. Below the wheel gear disposition portion 21, a cable disposition portion 24 for disposing the connection cable 2 connected to an inner door handle (not shown) disposed inside the door is provided.

  The fence block 25 is made of resin, and a latch mechanism 43 is disposed on the outer surface opposite to the door hinge, and a lock mechanism 53 and an opening mechanism 64 are disposed on the inner surface opposite to the door. A fork disposing portion 34 is provided at the upper part on the outer surface side of the fence block 25, and a claw lever disposing portion 35 is provided at the center. A lock plate support 42 is provided at the upper part on the inner surface side of the fence block 25. At the lower part on the inner surface side of the fence block 25, an opening lever arrangement portion 40 and a first shaft support portion 26 whose tip is inserted and held in the holding hole 16 are provided. The first shaft support portion 26 has a cylindrical shape having an axis (rotating shaft) extending in a direction orthogonal to a later-described advance / retreat direction of the link 60 of the lock mechanism 53. An outer open lever 65 of an opening mechanism 64 is rotatably mounted on the first shaft support portion 26 (see FIG. 9A).

  As shown in FIG. 5, a second shaft support portion 27 is provided adjacent to the side of the first shaft support portion 26 and below the link 60 so as to rotatably support the inner open lever 70. Yes. The second shaft support portion 27 has an axis line (rotating shaft) extending in a direction orthogonal to the advancing / retreating direction of the link 60 and the axis line of the first shaft support portion 26.

  As shown in FIGS. 6 and 7, the second shaft support portion 27 includes a pair of holding portions 28 and 28 that support the shaft portion 71 of the inner open lever 70 by bearing grooves 29 and 29, and a holding portion 28. , 28 and a sliding contact portion 31 formed between them. An opening 32 for inserting the shaft portion 71 of the inner open lever 70 into the bearing groove 29 is formed above the bearing grooves 29 and 29.

The sliding contact portion 31 is opposed to the opening portion 32 and has a cylindrical shape divided into four equal parts with the axis of the bearing groove 29 as the center (the cross section perpendicular to the axis of the bearing groove 29 is arc-shaped) . The sliding contact portion 31 is curved from above the bearing groove 29 along the trajectory when the outer end surface 75 b of the protruding portion 74 of the inner open lever 70 is rotated. Specifically, the sliding contact portion 31 includes a first end portion 30a located above the opening 32 and a second end portion 30b opposite to the first end portion 30a. The horizontal position of the first end 30 a is within the width of the opening 32. The second end portion 30 b is provided at a predetermined interval L in the horizontal direction from the bearing groove 29. This interval L corresponds to the length of the protruding portion 74 in the protruding direction from the shaft portion 71. The sliding contact part 31 releases the engagement of the striker 1 by the latch mechanism 43 by the rotation range of the protruding part 74 of the inner open lever 70, that is, the initial position where the door handle is not operated, and the door handle opening operation. It is provided between the operation position to perform. The sliding contact portion 31 is positioned so as to face the outer end surface 75 b of the projecting portion 74, and abuts on the outer end surface 75 b to prevent the inner open lever 70 from being detached from the bearing groove 29.

  As shown in FIG. 5, a regulation rib (regulation part) 33 that regulates the rotation of the inner open lever 70 protrudes from the lower edge of the holding part 28 at a position away from the first shaft support part 26.

  As shown in FIG. 1, the fence block 25 includes a metal base plate 36 disposed on the outer surface side and a metal set plate 38 disposed on the inner surface side. A fork 44, a claw lever 48 and an opening lever 54 are rotatably supported between the base plate 36 and the set plate 38.

  As shown in FIG. 2, the cover member 39 has a shape that covers the second arrangement portion 17.

  As shown in FIGS. 1 and 4, the latch mechanism 43 includes a fork 44 disposed on the fork disposition portion 34 of the fence block 25, and a claw lever 48 disposed on the claw lever disposition portion 35. And is arranged on the outer surface side of the fence block 25. When the striker 1 enters the fork 44 by closing the door, the fork 44 is rotated to the engagement position shown in FIG. Thereby, the claw lever 48 is locked to the fork 44, and the engagement state of the striker 1 by the fork 44 is maintained. When the claw lever 48 is rotated in the unlocking direction (clockwise in FIG. 4) by the operation of the door handle, the fork 44 is rotated clockwise to be in the open position, and the striker 1 is unlocked. Is done.

  As shown in FIGS. 9A and 9B, the lock mechanism 53 is rotatably disposed on the release lever 54 provided on the release lever arrangement portion 40 (see FIG. 3) of the fence block 25 and the lock plate support portion 42. A lock plate 57 is provided, and a link 60 disposed in the first disposition portion 15 is provided. When the door handle is operated, the link 60 is actuated upward in FIG. 9A via the open levers 65 and 70 to operate the release lever 54, whereby the claw lever 48 is moved in the unlocking direction. The As shown in FIG. 9A, when the unlocking operation is performed, the lock plate 57 is rotated to the unlocking operation position via the switching mechanism 79, and the link 60 is moved to the unlocking position where the release lever 54 can be operated. . As shown in FIG. 9B, when the locking operation is performed, the lock plate 57 is rotated to the lock operation position via the switching mechanism 79, and the link 60 is moved to the lock position where the release lever 54 cannot be operated.

  The opening mechanism 64 includes an outer open lever 65 and an inner open lever 70, and is disposed on the inner surface side of the fence block 25. When an outer door handle (not shown) disposed outside the door is operated, the operating force is transmitted to the link 60 via the outer open lever 65. When the inner door handle disposed inside the door is operated, the operating force is transmitted to the link 60 via the inner open lever 70. When the lock mechanism 53 is in the unlock position, the engagement of the striker 1 by the latch mechanism 43 is released. These open levers 65 and 70 are located below the latch mechanism 43.

  The outer open lever 65 includes a shaft hole that is rotatably disposed in the first shaft support portion 26 of the fence block 25. A first link actuating portion 66 protruding toward the lower end of the link 60 is provided. In addition, a first handle connecting portion 68 protruding outward from the first housing portion 12 is provided. A rod (not shown) that is a connecting member connected to the outer door handle is connected to the first handle connecting portion 68. The outer open lever 65 is urged by a coil spring 69 so that the first link operating portion 66 is positioned below. The link 60 is moved (retracted) downward from the advanced position by the biasing force of the coil spring 69.

  As shown in FIGS. 5 and 8A and 8B, the inner open lever 70 has a shaft portion 71 at the upper end of the lever body 76a. The lever main body 76 a includes a second link operating portion 77 that protrudes toward the lower end of the link 60 and a second handle connecting portion 78 that protrudes outward from the lower end of the first disposing portion 17. A connection cable 2 that is a connecting member connected to the inner door handle is connected to the second handle connecting portion 78.

  The shaft portion 71 protrudes in a direction intersecting the rotation direction of the inner open lever 70 and is rotatably held by the second shaft support portion 27 of the fence block 25. The shaft portion 71 has a cylindrical shape, and an annular outer peripheral wall 72 that is shorter than the axial length of the shaft portion 71 is formed on the outer side concentrically with the shaft portion 71. The outer peripheral wall 72 is in sliding contact with the inner surface of the holding portion 28 to prevent the inner open lever 70 from tilting the axis of the shaft portion 71. The shaft portion 71 and the outer peripheral wall 72 are integrally formed through a connecting portion 73 having a concave cross section.

  The inner open lever 70 has a protrusion 74 that protrudes upward in the radial direction from the outer peripheral wall 72. The protruding portion 74 has a quadrangular prism shape having a concave portion 75 a on the surface, and the outer end surface 75 b is curved around the axis of the shaft portion 71. The inner open lever 70 is returned to the initial position by the urging force of the coil spring 69 via the outer open lever 65 and the link 60.

  A plate-like locking rib 76 b that protrudes from the side surface of the inner open lever 70 at the root of the second link operating portion 77 and extends in the radial direction of the shaft portion 71 is formed below the shaft portion 71. When the inner open lever 70 is in the initial position, the locking rib 76b abuts on the regulating rib 33 of the bearing groove 29 and prevents the protruding portion 74 from rotating in a direction away from the sliding contact portion 31. To do.

  As shown in FIGS. 1 and 10A and 10B together, the switching mechanism 79 is disposed in the second disposition portion 17 of the housing body 14 and includes a manual operation system and an electric operation system. The link 60 is switched to the lock position via the lock plate 57 by any one of the operation system locking operations, and the link 60 is switched to the unlock position via the lock plate 57 by any one of the operation system unlocking operations.

  The manual operation system consists of an inner lock unit operated by a lock knob (locking / unlocking operation unit) disposed on the inside of the door and an outer lock unit operated by a key cylinder (locking / unlocking operation unit) disposed on the outside of the door. With. The inner lock unit includes a switching lever 80. The outer lock unit includes a key rotor 81 arranged in the key rotor arrangement portion 18 of the second arrangement portion 17, a key link 83 arranged on the upper side of the second arrangement portion 17, a key input lever 82, and a key lever. And a key lever 84 pivotally supported by the support portion 19. The electric operation system (electric lock unit) is arranged in the drive motor 86 arranged in the motor arrangement unit 22, the worm 88 arranged beside the motor arrangement unit 22, and the wheel gear arrangement unit 21. Wheel gear 89 is provided.

  In the inner lock unit, the switching lever 80 is rotated by operation of the lock knob, and the lock plate 57 is locked or unlocked. When the outer lock unit is operated by inserting a regular key into the key cylinder, the key rotor 81 rotates through the paddle as a connecting member, the key input lever 82 rotates through the key link 83, and the key lever 84 rotates. Thus, the lock plate 57 is locked or unlocked via the switching lever 80. In the electric lock unit, the wheel gear 89 is rotated via the worm 88 when the drive motor 86 is operated by a remote control operation or the like. Thus, the lock plate 57 is locked or unlocked via the switching lever 80. That is, the switching lever 80 of the present embodiment receives all the operation system locking / unlocking operations, transmits the operation force to the lock mechanism 53, and performs the lock operation or the unlock operation.

  Next, a procedure for mounting the inner open lever 70 on the second shaft support portion 27 according to the present invention will be described.

  As shown in FIG. 11A, the outer end surface 75 b of the projecting portion 74 is brought close to the sliding contact portion 31 in a state where the inner open lever 70 is rotated by about 90 degrees and tilted. Then, the outer end surface 75 b of the projecting portion 74 moves in sliding contact with the inner peripheral surface of the sliding contact portion 31. At this time, the second end portion 30 b is provided at a predetermined interval L in the horizontal direction from the bearing groove 29. Therefore, the shaft portion 71 is guided into the bearing groove 29 through the opening portion 32 and can be easily inserted (see FIG. 11B).

  Then, as shown in FIG. 12 (A), the inner open lever 70 is rotated about 90 degrees and raised, whereby the mounting of the inner open lever 70 to the holding portion 28 is completed. Thus, the inner open lever 70 can be easily pivotally supported on the fence block 25 by one-touch operation by simply inserting the shaft portion 71 of the inner open lever 70 into the bearing groove 29 from the opening 32 and rotating it. Can be attached.

  When the inner open lever 70 is attached to the holding portion 28 and the door handle is in the non-operating state, the regulating rib 33 provided on the fence block 25 comes into contact with the locking rib 76b of the inner open lever 70. For this reason, the rotation to the direction which the protrusion part 74 of the inner open lever 70 separates from the sliding contact part 31 (clockwise direction in FIG. 12 (A)) is blocked | prevented. Further, the horizontal position of the first end 30 a of the sliding contact portion 31 is within the range of the width of the opening 32. Accordingly, the abutting state between the projecting portion 74 and the sliding contact portion 31 at the position corresponding to the opening portion 32 can be maintained, and the shaft support state of the inner open lever 70 can be reliably maintained. It is prevented from coming out.

  Also, as shown in FIG. 12B, the sliding contact portion 31 is positioned so as to face the outer end surface 75b even in the operating position where the engagement of the striker 1 by the latch mechanism 43 is released by the door handle opening operation. . Therefore, the outer end surface 75 b and the sliding contact portion 31 come into contact with each other, and the shaft portion 71 is prevented from coming out of the bearing groove 29. As described above, the shaft portion 71 of the inner open lever 70 can be prevented from coming out of the bearing groove 29 in the rotation range of the inner open lever 70.

  The sliding contact portion 31 is curved along the locus of the outer end surface 75b of the protruding portion 74 of the inner open lever 70 from the upper side of the bearing groove 29 with the axis of the bearing groove 29 as the center. Thus, the sliding contact portion 31 can reliably prevent the shaft portion 71 of the inner open lever 70 from coming out of the bearing groove 29 with a simple configuration. Moreover, the manufacturing cost of the lever shaft support structure of the door lock device 10 can be reduced.

  The door lock device 10 of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

  For example, in the above-described embodiment, the sliding contact portion 31 is provided on the second shaft support portion 27 that pivotally supports the inner open lever 70. However, the present invention is not limited thereto, and a sliding contact portion may be provided on the first shaft support portion 26 that pivotally supports the outer open lever 65 of the opening mechanism 64, and the fork 44 or the claw lever 48 of the latch mechanism 43 is provided. You may provide a sliding contact part in the fence block 25 to perform. Further, a sliding contact portion may be provided on the housing 11 in which the release lever 54, the lock plate 57, and the link 60 of the lock mechanism 53 are disposed. A sliding contact portion may be provided on the switching lever 80 and the key lever 84 of the switching mechanism 79.

DESCRIPTION OF SYMBOLS 1 ... Striker 10 ... Door lock device 11 ... Housing 25 ... Fence block 26 ... 1st axis support part 27 ... 2nd axis support part 28 ... Holding part 29 ... Bearing groove 30a ... 1st end part 30b ... 2nd end part 31 ... Sliding Contact portion 32 ... Opening portion 33 ... Regulating rib (regulating portion)
36 ... Base plate 38 ... Set plate 39 ... Cover member 43 ... Latch mechanism 44 ... Fork 48 ... Claw lever 54 ... Release lever 57 ... Lock plate 60 ... Link 64 ... Release mechanism 65 ... Outer open lever 70 ... Inner open lever (rotation) lever)
DESCRIPTION OF SYMBOLS 71 ... Shaft part 74 ... Projection part 79 ... Switching mechanism 81 ... Key rotor 82 ... Key input lever 83 ... Key link 84 ... Key lever 86 ... Drive motor 88 ... Worm 89 ... Wheel gear

Claims (6)

A latch mechanism detachably engaged with the striker;
A housing in which the latch mechanism is disposed;
A pivot lever pivotally supported by the housing;
In a door lock device comprising:
The rotating lever includes a shaft portion projecting outward, and a projecting portion projecting radially from the shaft portion,
The housing has a pair of bearing grooves having an opening into which the shaft portion is inserted, and a cross section perpendicular to the axis of the bearing groove facing the opening and having an arc shape , and is in contact with the outer end surface of the protruding portion. A door lock device comprising a sliding contact portion. The sliding contact portion includes a first end located above the opening, and a second end opposite to the first end,
2. The door lock device according to claim 1, wherein the second end portion is provided at a predetermined interval in the horizontal direction from the bearing groove. The sliding contact portion includes a first end located above the opening, and a second end opposite to the first end,
3. The door lock device according to claim 1, wherein a horizontal position of the first end portion is within a range of a width of the opening.   4. The door lock device according to claim 1, wherein the sliding contact portion is curved along a trajectory during rotation of the rotation lever. The rotating lever is an open lever of a link mechanism that opens the latch mechanism;
The sliding contact portion is a rotation range of the open lever between an initial position where the door handle is in a non-operating state and an operating position where the engagement of the striker by the latch mechanism is released by opening the door handle. The door lock device according to claim 1, wherein the door lock device is provided over the door.   The door according to any one of claims 1 to 5, wherein the housing is provided with a restricting portion that prevents the protrusion of the rotation lever from rotating in a direction away from the sliding contact portion. Locking device.

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