JP5607508B2 - Door lock device - Google Patents

Description

  The present invention relates to a door lock device attached to a door of a vehicle.

  The door of the vehicle is provided with a door lock device that is detachably locked to a striker having a substantially U shape fixed to the vehicle body. The door lock device includes a latch mechanism that locks the striker and a lock mechanism that releases the striker by the latch mechanism.

  Patent Document 1 describes a door lock device that accommodates and holds a latch mechanism, a lock mechanism, an electric actuator, and the like in one closed housing. As shown in FIG. 12, in the door lock device 101, for example, in order to connect the cable 102 connected to the inner door handle to the interlocking lever 104 in the closing housing 103, the interlocking lever 104 is exposed to the outside in the closing housing 103. It is necessary to provide the opening 105 to be provided.

  However, if the rotation start position of the interlocking lever 104 is set to a position where the cable connecting part 106 is inserted through the opening 105, the edge of the opening 105 is caught by the interlocking lever 104 due to the deformation of the closing housing 103 or the like. There was a risk of waking up.

JP 2009-203738 A

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a door lock device that prevents malfunction of the interlocking lever and is easy to assemble.

In order to solve the above problems, the door lock device of the present invention is
A latch mechanism capable of engaging and disengaging the striker;
A lock mechanism capable of switching between an unlock position where the striker can be unlocked by the latch mechanism and a lock position where the striker cannot be unlocked by the latch mechanism;
A housing composed of a first case member for disposing the locking mechanism and a second case member for covering the first case member;
In the housing, an interlocking lever that is axially movable and rotatably supported by a support shaft provided in the first case member,
An opening provided in the second case member that exposes an end of the interlocking lever to the outside of the housing;
In the door lock device provided with a connecting portion that is provided at an end portion of the interlocking lever exposed to the outside of the housing from the opening and connects an operation transmitting member that moves in conjunction with an operation of an external operating member.
The first case member is
The projecting into the rotational path of the interlocking lever, said interlock lever and said opening engaging said interlock lever in the rotational direction at a predetermined rotational position of the axial movement is restricted toward the first case A first engagement portion that is positioned at an insertion position that matches the portion;
The assembly that protrudes closer to the support shaft than the outer shape of the interlocking lever that engages with the first engagement portion, is disengaged from the first engagement portion, and moves to the back side of the first case. A second engagement portion that engages with the interlocking lever at a position in a rotation direction, and positions the interlocking lever at an initial position rotated from the insertion position;
It is equipped with.

  With the above configuration, the interlocking lever is positioned at the insertion position by the first engaging portion. Therefore, when the second case member is put on the first case member, the connecting portion of the interlocking lever is made to pass through the opening. The work to expose to the outside becomes easy. Further, since the interlocking lever is positioned at the initial position rotated from the insertion position by the second engaging portion, the edge of the opening is caught by the connecting portion due to deformation of the second case member, etc., and the connecting portion malfunctions. It can be prevented from causing.

In a state where the interlocking lever is in the insertion position, the interlock lever and opposite to the locking, it is preferable to provide a movement blocking surface that restricts movement in the axial direction toward the first casing.
As a result, when the second case member is assembled to the first case member, the interlocking lever is prevented from moving unexpectedly in the axial direction of the support shaft and releasing the engagement between the interlocking lever and the first engaging portion. To do. Therefore, the interlocking lever can be securely held at the insertion position, and the assembly of the second case member to the first case member can be improved.

It is preferable to provide an elastic member that urges the interlocking lever toward the first engagement portion and the second engagement portion in the rotation direction around the support shaft .
Thereby, the engagement state of the interlocking lever, the first engagement portion, and the second engagement portion can be reliably maintained, and the assembling property can be further improved.

  According to the door lock device of the present invention, since the interlocking lever is positioned at the insertion position by the first engaging portion at the time of assembly, when the first case member is covered with the second case member, the connecting portion of the interlocking lever is The operation of penetrating the opening and exposing it to the outside of the second case member is facilitated. Further, after the assembly, the interlocking lever is positioned at the initial position rotated from the insertion position by the second engaging portion, so that the edge of the opening is caught by the connecting portion due to the deformation of the second case member, etc. It is possible to prevent malfunctions. In addition, since the movement preventing surface is opposed and locked to the interlocking lever, when the second case member is assembled to the first case member, the interlocking lever unexpectedly moves in the axial direction of the support shaft, The engagement with the one engaging portion is prevented from being released. Therefore, the interlocking lever can be securely held at the insertion position, and the assembling property of the second case member to the first case member can be improved.

The front view which shows the state which has the door lock apparatus which concerns on embodiment of this invention in an unlocked state. The front view which shows the state which has the door lock apparatus which concerns on embodiment of this invention in a locked state. (A) is the sectional view on the AA line of (B), (B) is a front view which shows the locking mechanism arrangement | positioning part of the 1st case member of FIG. (A) is the elements on larger scale of the 1st engaging part of FIG. 3, and the 2nd engaging part, (B) is the BB sectional drawing of (A). The front view which shows the state which assembled | attached the 2nd case member to the 1st case member of FIG. 1, and connected the cable to each connection part. The latch mechanism of a door lock apparatus is shown, (A) is a side view which shows a door open state, (B) is a side view which shows a door closed state. (A) is the elements on larger scale which show the state in which the inner lever of FIG. 1 exists in an insertion position, (B) is the BB expanded sectional view of (A). The partial enlarged front view which shows the state which covered the 2nd case member on the 1st case member of FIG. 7 (A). (A) is a partial enlarged front view showing a state in which the inner lever of FIG. 1 is in an initial position, and (B) is an enlarged sectional view taken along line BB of (A). The partial enlarged front view which shows the inner lever in the initial position of FIG. 9 (A) in the state which assembled | attached the 2nd case member to the 1st case member. The front view which shows the state which assembled | attached the cover to the door lock apparatus of FIG. The front view which shows the conventional door lock apparatus.

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

  1 and 2 show a door lock device according to an embodiment of the present invention. This door lock device is attached to an openable / closable door of a vehicle and is detachably locked to a striker 1 (see FIG. 6B) disposed on a vehicle body. The door lock device is provided with a latch mechanism that is engaged with the striker 1 and a lock mechanism that is unlocked and unlocked so as to be unlockable or unlockable.

  As shown in FIG. 3A, the first case member 11 in which the components constituting the lock mechanism are arranged has an L shape in plan view including a lock mechanism arrangement portion 12 and a latch mechanism arrangement portion 17. belongs to. As shown in FIG. 3 (B), the lock mechanism arrangement portion 12 has mounting shaft portions 13a and 13b which are support shafts for pivotally mounting a lock plate 57 and an inner lever 72 which are interlocking levers, which will be described later. Is provided. Also, in the drawing, two key link holding grooves 18 are formed in the vertical direction on the right side and above the mounting shaft portion 13a of the lock plate 57 in order to hold a key link 77 described later. Around the attachment shaft portion 13b of the inner lever 72, a peripheral wall 19 is formed concentrically with the attachment shaft portion 13b. A shaft hole 14 is provided on the left side portion of the mounting shaft portion 13b for rotatably arranging a knob lever 65 described later. A drive motor disposition portion 15 and a cam member disposition portion 16 are provided on the upper left side of the shaft hole 14.

  The first engaging portion 27 and the second engaging portion 30 according to the present invention are attached to the inner surface of the lower edge portion 11a that rises at a right angle from the lower edge of the first case member 11 to the first case member 11. Projecting toward the portion 13b. As shown in FIGS. 4A and 4B, the first engagement portion 27 and the second engagement portion 30 are provided between the lower edge portion 11 a and the peripheral wall 19. Is formed integrally with the first case member 11 in a step shape so that the first engagement portion 27 is closer to the attachment shaft portion 13b. The surface of the first engagement portion 27 that faces the mounting shaft portion 13 b is configured by an engagement surface that is a semi-cylindrical surface that extends toward the first case member 11 in the horizontal direction so as to be engageable with the inner lever 72. . The surface of the second engagement portion 30 that faces the attachment shaft portion 13b is closer to the attachment shaft portion 13b than the first engagement portion 27, and the first case member can be engaged with the inner lever 72 in the horizontal direction. 11 is constituted by an engaging surface consisting of a semi-cylindrical surface extending toward 11. Between the first engaging portion 27 and the second engaging portion 30, a movement preventing surface 31 extending in the vertical direction so as to face the inner lever 72 is formed.

  In this embodiment, the 1st engaging part 27 is protrudingly provided by the inner surface of the lower edge part 11a. However, the location and shape of the first engaging portion 27 are not particularly limited as long as the first engaging portion 27 engages with the inner lever 72 within the rotation locus of the inner lever 72. Moreover, in this embodiment, the 2nd engaging part 30 is formed on the same radius centering on the 1st engaging part 27 and the attachment shaft part 13b. However, if the second engagement portion 30 is disposed closer to the attachment shaft portion 13b than the outer shape L of the inner lever 72 engaged with the first engagement portion 27, the arrangement location and shape are particularly It is not limited.

  FIG. 5 shows a second case member 34 that forms a housing together with the first case member 11, and is attached to the lock mechanism disposition portion 12 of the first case member 11. The second case member 34 has a first opening 35 through which the knob lever side connecting portion 67 of the knob lever 65 passes and protrudes outward, and an inner handle connecting portion 74 of the inner lever 72 passes through and protrudes outward. An opening 36 is provided. The second opening 36 is formed to match the shape of the inner handle connecting portion 74. In addition, a connector connection port 38 through which a connector 37 for electrically connecting a signal line or a power line in a locked state or the like is provided.

  The sub case 20 attached to the latch mechanism arrangement portion 17 of the first case member 11 covers the fence block 21 side of the latch mechanism arranged in the latch mechanism arrangement portion 17. As shown in FIGS. 6A and 6B, the fence block 21 is provided with an insertion recess 22 serving as a space through which the striker 1 is inserted so as to be recessed toward the latch mechanism arrangement portion 17. Yes. On the upper side of the insertion recess 22, a fork 39 constituting a latch mechanism is rotatably attached to the attachment portion 23. A claw 45 is rotatably attached to the attachment portion 24 below the insertion recess 22. On the left side of the mounting portion 24, an insertion hole 25 is provided through which the operation receiving portion 49 of the claw 45 is inserted and protruded into the latch mechanism arrangement portion 17.

  The latch mechanism includes a fork 39 that detachably locks the striker 1 and a claw 45 that engages with the fork 39 and maintains the state in which the fork 39 holds the striker 1. In this latch mechanism, the fork 39 rotates counterclockwise as shown in FIGS. 6 (A) to 6 (B) by pressing of the striker 1 accompanying the door closing force. Then, when the locking portion 47 of the claw 45 is locked to the fork 39, the locked state of the striker 1 by the fork 39 is maintained. In this state, when the operation receiving portion 49 of the claw 45 is operated upward, the claw 45 is rotated clockwise, so that the locking of the fork 39 and the claw 45 is released. As a result, the fork 39 is rotated to the open position shown in FIG. 6A by the urging force of a spring (not shown), and the striker 1 is unlocked.

  Further, as shown in FIGS. 1 and 2, the lock mechanism assembled to the first case member 11 includes a link 50 for engaging with the operation receiving portion 49 of the claw 45 and operating the claw 45 in the unlocking direction. , And a lock plate 57 for enabling or disabling the operation of the claw 45 by the link 50.

  The link 50 moves upward by receiving the operating force of the inner lever 72 or the outer lever 86 by the passive portion 51 at the lower end. In the unlocked position shown in FIG. 1, the substantially central operating portion 53 engages with the claw operation receiving portion 49 to operate the claw 45 in the unlocking direction. Therefore, the striker 1 can be unlocked by the latch mechanism. In addition, the upper lock plate connecting portion 54 of the link 50 is connected to the lock plate 57, and is moved to the unlock position and the lock position by the rotation of the lock plate 57. In the locked position shown in FIG. 2, the operation portion 53 is separated to a position where it cannot be engaged with the operation receiving portion 49 of the claw 45. For this reason, even if the outer lever 86 or the inner lever 72 is moved upward, the claw 45 cannot be operated in the unlocking direction. Therefore, the striker 1 cannot be unlocked by the latch mechanism.

  The inner lever 72 is connected to an inner door handle (not shown) provided on the inner side of the door and is engaged with the passive portion 51 of the link 50, and the link 50 is connected to the release operation receiving portion 49 of the claw 45. Operate (slide) toward the side. The inner lever 72 includes an attachment portion 73 that is rotatably attached to the attachment shaft portion 13 b of the first case member 11. The inner lever 72 is urged clockwise by a coil spring 71 which is an elastic member provided around the attachment portion 73. As shown in FIG. 5, the inner lever 72 extends from the second opening 36 of the second case member 34 so as to protrude to the outside of the second case member 34 and is connected to the inner door handle ( An inner handle connecting portion 74 connected to the operation transmitting member 76 is provided. Further, the inner lever 72 is provided with a link actuating portion 75 having a substantially J shape so that the passive portion 51 of the link 50 is positioned on a rotation locus centering on the attachment portion 73 in the assembled state. .

  When the inner lever 72 is attached to the first case member 11, the inner lever 72 engages with the second engaging portion 30 and is positioned and held at an initial position shifted from the second opening 36 of the second case member 34. Yes. When the inner door handle is operated, as shown in FIG. 5, the inner handle connecting portion 74 protruding outward from the second case member 34 is pulled leftward by the inner door cable 76, and It rotates from an initial position indicated by a solid line rotated about 6 ° counterclockwise around the attachment shaft portion 13b to a substantially vertical operation position indicated by a two-dot difference line. As a result, when the inner lever 72 rotates counterclockwise, the link operating portion 75 at the lower end engages with the passive portion 51 of the link 50 and moves the link 50 upward.

  The outer lever 86 is a known lever, extends through the first case member 11 in and out, and is rotatably attached. When an outer handle (not shown) provided on the vehicle exterior side of the door is operated, the link connecting portion 88 at the tip connected to the passive portion 51 moves upward, thereby moving the link 50 upward.

  The lock plate 57 is rotatably attached to the attachment shaft portion 13 a of the first case member 11. When the lock plate 57 is rotated clockwise by a key switch lever 83 or a knob lever 65 described later, the link engaging portion 61 provided at the lower end moves to the left side, and the link 50 is moved from the unlock position to the lock position. Move to. Moreover, by rotating counterclockwise, the link engaging part 61 moves to the right side, and the link 50 is moved from the lock position to the unlock position. The lock plate 57 receives the unlocking operation by the key switch lever 83 at the protruding unlocking passive portion 64 and receives the locking operation by the key switch lever 83 at the right edge. Further, the unlocking operation and the locking operation by the knob lever 65 are received by the knob lever engaging portion 63 located on the opposite side of the link engaging portion 61.

  The key switch lever 83 is connected via a key link 77 to a cylinder lock (not shown) disposed so as to be exposed to the vehicle exterior side of the door, and the lock plate 57 is connected to the mounting shaft portion 13a of the first case member 11. It is attached so that rotation is possible. The key switch lever 83 includes a connecting portion 84 having an elliptical insertion hole, and the connecting portion 84 is engaged with a lower circular protrusion 78 formed at the lower end of the key link 77. The key link 77 is held in the key link holding groove 18 so as to be movable in the vertical direction, and an upper circular protrusion 79 is provided at the upper end. The upper circular protrusion 79 is engaged with an elliptical insertion hole 82b of a key rotor 82a that rotates around a shaft 81 clockwise or counterclockwise following a cylinder lock. When the key switch lever 83 is rotated clockwise via the key link 77 by the rotation of the key rotor 82a, the link 50 is moved to the lock position via the lock plate 57. Further, when the key switch lever 83 is rotated counterclockwise, the link 50 is rotated to the unlock position via the lock plate 57.

  The knob lever 65 is pivotally attached to the shaft hole 14 of the first case member 11 so as to be rotatable. As shown in FIG. 5, the knob lever side connecting portion 67 formed at one end of the knob lever 65 is connected to a lock knob cable 66 connected to a lock knob (not shown) provided inside the door and a first opening 35. Connected. A lock plate engaging portion 69 is provided at the other end of the knob lever 65 and is engaged with the knob lever engaging portion 63 of the lock plate 57. Then, the lock plate 57 is operated in conjunction with the operation of the lock knob, and the link 50 is moved to the lock position or the unlock position. Specifically, the knob lever 65 is rotated counterclockwise by the lock knob cable 66, whereby the lock plate engaging portion 69 at the tip rotates the lock plate 57 to the lock position. Further, by rotating clockwise, the lock plate engaging portion 69 rotates the lock plate 57 to the unlock position. Further, a cam receiving portion 70 is provided above the shaft hole 14 so as to engage with the cam groove 94 of the cam member 92 located on the back portion.

  A drive motor 90 adjacent to the cam member 92 rotates the cam member 92 forward or backward via the output shaft 91. The cam member 92 is rotatably disposed so as to face the cam receiving portion 70 of the knob lever 65. In the cam member 92, a cam groove 94 is recessed on the upper surface side facing the knob lever 65 so that the distance from the center gradually increases from the center side toward the outer peripheral portion. The cam member 92 is rotated so that the cam receiving portion 70 moves to the center side, thereby locking the link 50 via the knob lever 65 and the lock plate 57, and the cam receiving portion 70 is moved to the outer peripheral side. By rotating so as to move, the link 50 is unlocked via the knob lever 65 and the lock plate 57.

  Next, assembly of the inner lever 72 and the second case member 34 to the first case member 11 will be described.

  When the attachment portion 73 of the inner lever 72 is attached to the attachment shaft portion 13b via the coil spring 71, the inner lever 72 is urged clockwise around the attachment shaft portion 13b by the coil spring 71. As a result, as shown in FIG. 7A, the inner lever 72 is engaged with the first engaging portion 27 and is positioned and held at the insertion position. Further, as shown in FIG. 7B, since the inner lever 72 contacts the movement preventing surface 31, the movement toward the first case member 11 is restricted. Thus, when the second case member 34 is assembled to the first case member 11, the inner lever 72 moves unexpectedly toward the first case member 11, and the inner lever 72 and the first engagement portion 27 are engaged. Is prevented from releasing. Therefore, the inner lever 72 can be reliably held at the insertion position, and the assembling property of the second case member 34 to the first case member 11 can be improved.

  In this state, when the first case member 11 is covered with the second case member 34, the inner lever 72 is positioned at the insertion position, so that the inner handle connecting portion 74 covers the second opening 36 of the second case member 34. Insert (see FIG. 8). Accordingly, when covering the first case member 11 with the second case member 34, the inner handle connecting portion 74 supported by the first case member 11 passes through the second opening 36 and is exposed to the outside of the second case member 34. This makes it easier to work.

  Next, when the inner lever 72 is rotated counterclockwise against the urging force of the coil spring 71, the engagement between the inner lever 72 and the movement preventing surface 31 is released, and the inner lever 72 is moved to the first case member 11. It becomes possible to move toward. In this state, the inner lever 72 and the second case member 34 are moved together to the back side in FIG. 8, and the second case member 34 is assembled to the first case member 11. After the assembly, when the operation of the inner lever 72 is released, the inner lever 72 is rotated clockwise by the urging force of the coil spring 71, and as shown in FIGS. 9A and 9B, the second engaging portion 30 is engaged. As a result, the inner handle connecting portion 74 of the inner lever 72 is held at the initial position as shown in FIG. Accordingly, it is possible to prevent the inner handle 72 from malfunctioning due to the edge of the second opening 36 being caught by the inner handle connecting portion 74 due to deformation of the second case member 34 or the like.

  Then, the first case member 11 and the second case member 34 are screwed together, and the inner door cable 76 is attached to the inner handle connecting portion 74 and the lock knob cable 66 is attached to the knob lever side connecting portion 67. Finally, as shown in FIG. 11, the cover 96 is screwed and assembled to the second case member 34, so that the first and second openings 35 and 36, the inner handle connecting portion 74, and the knob lever side connecting portion 67 are assembled. Is prevented from being stolen by the intrusion of water from the outside and the operation of the knob lever 65 from the outside.

  In the present embodiment, the interlocking lever is an inner lever 72 that is connected to an inner handle in the vehicle via a cable 76. However, the interlocking lever may be any type of lever as long as it has a connecting portion exposed to the outside from the opening of the case member.

  Further, in the present embodiment, the coil spring 71 that biases the inner lever 72 toward the first engagement portion 27 and the second engagement portion 30 is provided, but even when the coil spring 71 is not provided, The same effect as in the above embodiment can be obtained. That is, even when the coil spring 71 is not provided, the inner lever 72 is positioned at the insertion position by the first engaging portion 27 when assembled, so that when the first case member 11 is covered with the second case member 34, 72, and the inner handle 72 is exposed to the outside of the second case member 34 through the second opening 36. After the assembly, the inner lever 72 is moved to the initial position by the second engaging portion 30. Therefore, it is possible to prevent the inner handle connecting portion 74 from causing a malfunction due to the edge of the second opening 36 being caught by the inner handle connecting portion 74 due to deformation of the second case member 34 or the like.

1 striker 11 first case member 13b mounting shaft portion (support shaft)
27 1st engagement part 30 2nd engagement part 31 Movement prevention surface 34 2nd case member 36 2nd opening part 71 Coil spring (elastic member)
72 Inner lever (interlocking lever)
74 Inner handle connecting portion 76 Inner door cable (operation transmission member)

Claims (3)

A latch mechanism capable of engaging and disengaging the striker;
A lock mechanism capable of switching between an unlock position where the striker can be unlocked by the latch mechanism and a lock position where the striker cannot be unlocked by the latch mechanism;
A housing composed of a first case member for disposing the locking mechanism and a second case member for covering the first case member;
In the housing, an interlocking lever that is axially movable and rotatably supported by a support shaft provided in the first case member,
An opening provided in the second case member that exposes an end of the interlocking lever to the outside of the housing;
In the door lock device provided with a connecting portion that is provided at an end portion of the interlocking lever exposed to the outside of the housing from the opening and connects an operation transmitting member that moves in conjunction with an operation of an external operating member.
The first case member is
The projecting into the rotational path of the interlocking lever, said interlock lever and said opening engaging said interlock lever in the rotational direction at a predetermined rotational position of the axial movement is restricted toward the first case A first engagement portion that is positioned at an insertion position that matches the portion;
The assembly that protrudes closer to the support shaft than the outer shape of the interlocking lever that engages with the first engagement portion, is disengaged from the first engagement portion, and moves to the back side of the first case. A second engagement portion that engages with the interlocking lever at a position in a rotation direction, and positions the interlocking lever at an initial position rotated from the insertion position;
A door lock device comprising: Claim 1, wherein the interlock lever is in the state in the insertion position, wherein by engaging the interlocking lever and opposite to, and further comprising a movement blocking surface that restricts movement of the first case towards the axial direction The door lock device according to. The elastic member which urges | biases the said interlocking lever toward the said 1st engaging part and the 2nd engaging part in the rotation direction around the said support shaft is provided to Claim 1 or 2 characterized by the above-mentioned. The door lock device described.

Images