JP4156906B2 - Door latch device for automobile - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automotive door latch device that can open a door by switching a locked state to an unlocked state by a so-called double action operation of opening an inside handle twice.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in an automotive door latch device in which an actuator capable of operating a locking / unlocking means of a latch body is attached to a latch body provided with engagement means that can be engaged with and disengaged from a striker, the first time of an inside handle provided on the inside of the door What enabled the so-called double-action operation, in which the unlocking means was switched from the locked state to the unlocked state by opening the door, and the door could be opened by the second opening operation of the inside handle. It is publicly known (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-2001-271531 (FIGS. 6 and 7)
[0004]
[Problems to be solved by the invention]
However, in the conventional automotive door latch device as described above, the inside lever and knob lever of the vehicle interior system that requires the most changes in configuration according to various variations such as for the front door and for the rear door are provided on the latch body side. Therefore, it is difficult to share the latch body, which may increase the cost.
[0005]
In view of the above-mentioned problems of the prior art, the present invention enables the double action operation, improves the common use of the latch body, and can reduce the cost. An object is to provide a door latch device.
[0006]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) Engaging means that can be engaged with and disengaged from the striker, a body for housing the engaging means, a base plate fixed to the body, and supported by the base plate, and engaging the striker and the engaging means. an open lever for releasing said supported on the base plate, and the outside handle movable outside lever in the release direction by the door opening operation of a door opening provided in the exterior side, is supported on the base plate, and the interior side The locking / unlocking lever that can be moved between the unlocking position and the locking position by operating the locking / unlocking control knob provided in the door, and the outside lever and the locking / unlocking lever are linked together, and the unlocking lever is always interlocked with the locking / unlocking lever. A first sub-lever movable between a locking position and a locking position; and connected to the first sub-lever, wherein the first sub-lever is unlocked When the outside lever moves in the release direction, the open lever can be moved in the release direction by engaging the engaging portion of the open lever, and the first sub-lever is locked. A second sub-lever having a release portion that is swung with respect to the engaging portion of the open lever, and the locking / unlocking is performed while the second sub-lever is swung to the engaging portion. When the lever is moved from the locked position to the unlocked position, the first sub lever is moved to the unlocked position in a state where the second sub lever is in contact with the side surface of the engaging portion. A latch body in which the second sub lever is moved to the unlocked position by the biasing force of the spring when the side lever is moved to the standby position, and the latch body is attached to the latch body. Is, in the automotive door latch device including an actuator with a built-in motor for moving said locking-unlocking lever in the locking position and the unlocking position, the actuator is fixed to the base plate, for accommodating the motor A housing and a cover that is fixed to the housing and that closes the housing portion of the housing in which the motor is housed; The inside lever linked to the locking / unlocking lever so as to move the locking / unlocking lever from the locking position to the unlocking position, Unlocking position by the locking / unlocking operation of the locking / unlocking operation knob A knob lever that is movable to a position and a locking position and is coupled to the locking / unlocking lever, the knob lever is pivotally mounted in a housing portion of the housing, and the inside lever is connected to the housing in the cover. It pivots to the inner surface on the side facing the housing .
[0007]
(2) In the above item (1), the locking / unlocking lever and the knob lever are connected to each other through a linkage lever movably provided in the housing accommodating portion of the actuator, and the inside lever is moved in the releasing direction, thereby The locking / unlocking lever is moved from the locking position to the unlocking position via the linkage lever.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a door latch device (1) according to the present invention, FIG. 2 is a side view of the door latch device (1), and FIG. 3 is a front view before the latch body (2) and the actuator (3) are assembled. FIG.
In the following description, the left side in FIGS. 1 and 3 is “rear”, the right side is “front”, the left side in FIG. 2 is “vehicle inside”, and the right side is “vehicle outside”. .
[0011]
The door latch device (1) is formed by a latch body (2) fixed with a plurality of bolts (not shown) to an inner rear end of a door in an automobile, and an actuator (3) attached to the latch body (2). .
[0012]
As shown in FIGS. 4 and 5, the latch body (2) is pivotally attached to the housing portion (4 c) of the synthetic resin box-shaped body (4) by a pivot (5) facing in the front-rear direction. A striker (6) fixed to the vehicle body side and a latch (7) that can be engaged and disengaged, and a pivot (8) facing in the front-rear direction, and a claw portion (7a provided on the outer peripheral edge of the latch (7)) ) (7b) and a detachable locking plate (9).
[0013]
The latch (7) is engaged with the striker (6) by rotating clockwise from the open position as shown in FIG. 5 and the open position where the striker (6) is detached as shown in FIG. It can be rotated between the closed position.
[0014]
The locking plate (9) engages with the claw portion (7b) (or claw portion (7a)) of the latch (7) and rotates the latch (7) in the opening direction (counterclockwise in FIG. 5). 5 and the release position that rotates from the engagement position in the release direction (counterclockwise in FIG. 5) and disengages from the claw portion (7b) (or claw portion (7a)). Can be rotated between the two.
[0015]
The housing part (4c) of the body (4) is closed by a metal cover plate (38) (shown in FIG. 8). The latch (7) is opened in the open direction (counterclockwise in FIGS. 4 and 5) by a spring (not shown), and the locking plate (9) is engaged by the spring (37) (FIGS. 4 and 5). In the clockwise direction).
[0016]
In the embodiment according to the present invention, the engagement means is formed by the latch (7) and the locking plate (9).
[0017]
As shown in FIGS. 6 and 7, an L-shaped metal base plate (11) fixed to the front side of the body (4) and viewed from above has a shaft portion (10 a) facing in the front-rear direction. A detection lever (10) pivotally attached and rotated in synchronization with the latch (7) and a pivot (8) of the locking plate (9) are fixed, and can be rotated integrally with the locking plate (9). An open lever (12) and a shaft portion (13a) protruding rearward are integrally formed, and a locking / unlocking lever (13) forming a part of the locking / unlocking means pivotally attached by this shaft portion (13a); An outside lever (14) pivotally attached by a pivot (15) facing in the front-rear direction and coupled to an outside handle (not shown) provided on the outside of the door via a connecting member (not shown). First and second forming other parts of the locking / unlocking means installed between the locking / unlocking lever (13) and the outside lever (14). A two-sub lever (16) (17) and a detection switch (39) for detecting the open position of the latch (7) with the detection lever (10) are provided.
[0018]
The locking / unlocking lever (13) has an engaging portion (13c) provided at an outer peripheral edge facing the vehicle inner side, and a connecting portion (13d) provided at an end portion facing the vehicle inner side and protruding forward. As will be described later, the locking position shown in FIG. 6 and the unlocking position shown in FIG. 7 are achieved by a locking / unlocking operation of a locking / unlocking operation knob (not shown) provided inside the door and a motor drive of the actuator (3). And rotated.
[0019]
When the outside handle is operated to open the door (operation to open the door), the outside lever (14) is released from the standby position shown in FIG. 6 against the urging force of the spring (18) (in FIG. 6). It is rotated counterclockwise) to the release position shown in FIG.
[0020]
The first sub-lever (16) is pivotally attached to the outside lever (14) by a connecting shaft (19) whose lower end is directed in the front-rear direction, and has a vertically elongated slot (16a) provided at the upper end. The lock lever (13) is slidably engaged with a protrusion (13b) provided at the lower end of the lock lever (13).
[0021]
The lower end of the second sub-lever (17) is pivotally attached to the first sub-lever (16) with the connecting shaft (19), and is urged clockwise with respect to the first sub-lever (16) by the spring (20). The shoulder portion (17a) provided at the upper right edge is held at the position shown in FIG. 6 by coming into contact with the contact portion (16b) of the first sub-lever (16).
[0022]
At the center of the second sub-lever (17), there is provided a release part (17b) that can be engaged and disengaged with an engaging part (12a) facing the front provided on the open lever (12).
[0023]
The first and second sub-lever (16) (17) are in the locking position shown in FIG. 6 when the locking / unlocking lever (13) is in the locking position, and the locking / unlocking lever (13) is moved from the locking position to the unlocking position. Is pivoted to a unlocked position that rotates a predetermined amount clockwise from the locked position.
[0024]
The release portion (17b) of the second sub-lever (17) is in a position where the second sub-lever (17) is swung with respect to the engaging portion (12a) of the open lever (12) when the second sub-lever (17) is in the locked position. When in the unlocked position, it is in a position where it can engage from above with the engaging portion (12a) of the open lever (12).
[0025]
When the unlocking lever (13) and the first and second sub-lever (16) (17) are in the unlocking position, the outside lever (14) is rotated in the release direction by opening the outside handle. In conjunction with this, the first and second sub-lever (16) (17) move in the release direction. As a result, the release portion (17b) of the second sub-lever (17) contacts the engagement portion (12a) of the open lever (12) from above, and the open lever (12) is moved in the release direction (FIGS. 6 and 7). In the clockwise direction). When the open lever (12) is rotated in the release direction, the locking plate (9) is rotated in the release direction and is released from the claw portion (7a) or (7b) of the latch (7). ) Can be unlocked to open the door.
[0026]
When the locking / unlocking lever (13) and the first and second sub-lever (16) (17) are in the locking position, the outside lever (14) is rotated in the release direction by opening the outside handle. Even if the first and second sub-lever (16) (17) are moved in the releasing direction, the releasing part (17b) of the second sub-lever (17) is in contact with the engaging part (12a) of the open lever (12). The locking plate (9) cannot be rotated in the release direction. Therefore, when the locking / unlocking lever (13) is in the locking position, the door cannot be opened by opening the outside handle.
[0027]
As shown in FIGS. 8, 10, and 11, the detection lever (10) has a shaft portion that is rotatably fitted in a fitting hole (4 a) provided in the upper corner of the body (4). 10a) and a rear end side of the shaft portion (10a), which passes through a passage hole (4b) (shown in FIG. 8) of the body (4) and extends to the housing portion (4c) of the body (4). A protrusion (10d) slidably engaged with a cam groove (7c) provided on the side surface of the latch (7), and an arm portion (10b) provided at the tip, and a front end side of the shaft portion (10a) A block that extends along the front side of the body (4) and prevents the locking / unlocking lever (13) from rotating from the unlocked position to the locked position when the latch (7) is in the open position; A detecting portion (10c) and a detecting portion (not shown) that extends downward along the front side of the body (4) and operates the detecting switch (39) by contacting the actuator portion (39a) of the detecting switch (39). 10e).
[0028]
The detection portion (10e) of the detection lever (10) is substantially U-shaped so as to be elastically deformable in the moving direction so as to be able to absorb an impact when contacting the actuator portion (39a) of the detection switch (39). I am doing.
[0029]
As described above, the detection lever (10) is configured such that the protrusion (10d) of the arm portion (10b) is slidably engaged with the cam groove (7c) of the latch (7). In synchronization with the rotation, when the latch (7) is in the open position, as shown in FIG. 7, the detection unit (10e) contacts the actuator unit (39a) of the detection switch (39), and the detection switch ( When the latch (7) is in the closed position, as shown in FIG. 6, the detection unit (10e) is moved from the actuator unit (39a) of the detection switch (39). Rotate to a close position that separates.
[0030]
As shown in FIG. 7, when the detection lever (10) is in the open position and the locking / unlocking lever (13) is in the unlocking position, the blocking portion (10c) of the detection lever (10) is locked and unlocked. Engaging with the engaging portion (13c) of (13) prevents the locking / unlocking lever (13) from rotating from the unlocked position to the locked position. In this state, when the door is closed, as shown in FIG. 6, the detection lever (10) is rotated to the closed position in conjunction with the rotation of the latch (7). The blocking portion (10c) is detached from the engaging portion (13c) of the locking / unlocking lever (13), and the locking / unlocking lever (13) can be rotated from the locking position to the unlocking position.
[0031]
As described above, the detection lever (10) operates the detection switch (39) to detect the open / closed state of the door (detection unit (10e)) and the unlocking / unlocking operation knob when the door is open. The structure (blocking part (10c)) which prevents the locking operation of this, and prevents forgetting an in-vehicle key is provided.
[0032]
Next, the actuator (3) will be described in detail. FIG. 12 is a front view of the actuator (3) with the cover (22) of the housing (21) removed, and FIG. 13 is a back view showing the inner surface side of the cover (22).
[0033]
The actuator (3) includes a synthetic resin housing (21) that is substantially L-shaped when viewed from above, and a synthetic resin cover (22) that closes the opening of the housing portion (21b) in the housing (21). 3 is assembled to the front surface side of the latch body (2) from the direction of the arrow VI shown in FIG. 3, and is fixed to the base plate (11) on the latch body (2) side as shown in FIGS. The
[0034]
The housing (21) is the front side of the latch body (2) provided with an open lever (12), locking / unlocking lever (13), outside lever (14), and first and second sub-lever (16) (17). And a bent portion (21b) provided on the upper and lower portions of the base plate (11). The cover portion (21a) covers the base plate (11). 11a) is fixed to the latch body (2) side by fitting.
[0035]
The housing (21) has the function of accommodating various parts on the actuator (3) side and the function of a waterproof and anti-theft cover in the door latch device (1) by the above-described configuration.
[0036]
As shown in FIG. 12, the housing portion (21b) of the housing (21) includes first and second motors (23) and (24) that can be driven by operating a remote control switch built in a key or the like, 1 Engage with the worm wheel (25a) meshed with the worm (23a) solidified on the output shaft of the motor (23) and the pinion (25a) provided on the worm wheel (25) It is pivotally attached by a movable linkage lever (26) and a pivot (28) facing the inside / outside of the vehicle, and is connected to an operation knob for locking / unlocking via a linkage member (40) (shown in FIG. 1) such as a wire. The second motor (24) is rotated through a gear lever (30) pivoted by a pivot lever (27) and a pivot shaft (29) facing inward and outward, and pivoted by the pivot shaft (28). And a sector gear (31).
[0037]
The cover (22) is fixed to the housing (21) so as to close the housing portion (21b) in the housing (21), and on the inner surface side of the cover (22) facing the housing portion (21b). As shown in FIG. 13, a pivot shaft (33) facing the inside / outside direction of the vehicle is pivotally attached, and an inside handle (not shown) provided on the inside of the door is connected to a link member (41) (see FIG. 1). The inside lever (32) connected via the inside lever (32), and a switching lever that can rotate integrally with the inside lever (32) and is slidable in the front-rear direction with respect to the inside lever (32) (34) is provided.
[0038]
In the present embodiment, the switching lever (34) is provided on the inside lever (32), but the configuration is not limited to this configuration, and the switching lever (34) may not be provided. good.
[0039]
The link lever (26) includes a shoulder (26b) provided at a substantially central portion in the vertical direction, a link / release lever (36) pivotally attached to the pivot (35), and a connecting portion of the locking / unlocking lever (13). A coupling hole (26a) to which (13d) is fitted, and a coupling provided on the knob lever (27) between the shoulder (26b) and the upper end (36a) of the coupling lever (36). The joint (27a) is connected to the knob lever (27), and the housing (21) is assembled to the latch body (2) so that the locking / unlocking lever (13) is connected to the connection hole (26a). The connecting portion (13d) is fitted and connected to the locking / unlocking lever (13).
[0040]
As described above, the knob lever (27) is connected to the linkage lever (26), and the linkage lever (26) is connected to the locking / unlocking lever (13), so that the first motor (23) has the linkage lever ( 26), the locking / unlocking lever (13) and the knob lever (27) can be rotated to the locking position and the unlocking position, and the locking / unlocking operation of the locking / unlocking operation knob can be performed via the knob lever (27). Thus, the linkage lever (26) and the locking / unlocking lever (13) can be moved to the locking position and the unlocking position.
[0041]
The sector gear (31) can be rotated by a second motor (24) to a locked position shown in FIGS. 12 and 15 and an unlocked position that rotates a predetermined amount counterclockwise from the locked position. When in the position, the upper end portion (36a) of the engaging / disengaging lever (36) is immersed in a position where it cannot be engaged with the engaging portion (27a) of the knob lever (27) as shown in FIGS. When the sector gear (31) is in the unlocked position, the elongated hole (31a) of the sector gear (31) and the protrusion (36b) of the engagement / disengagement lever (36) are engaged with each other. ) Is protruded to a position where it can be engaged with the engaging portion (27a) of the knob lever (27), as shown in FIG. Connect the linkage lever (26).
[0042]
The switching lever (34) has a protrusion (34a) provided substantially at the center, and is slidably fitted in a vertical hole (31b) provided in the sector gear (31). As shown in FIG. 13, the inner end of the inside lever (32) is inserted into the inner end of the operating end of the inside lever (32) in conjunction with the rotation of the inside lever (14). 14a), the locking position incapable of being engaged, and movement as shown by the imaginary line in FIG. 13, protruding from the operating end of the inside lever (32), and the engaging end (14a) of the outside lever (14) ) And the unlocking position shown in FIG.
[0043]
When the switching lever (34) is in the unlocked position and the linkage lever (26) is in the locked position, the inside lever (32) is released in the release direction (clockwise in FIG. 16, the projection (34a) of the switching lever (34) is engaged with the engaging portion (26c) of the linkage lever (26) from above as shown in FIG. Thus, the linkage lever (26) can be moved to the unlocked position.
[0044]
When the locking / unlocking lever (13), first and second sub-lever (16) (17), linkage lever (26), knob lever (27), sector gear (31), and switching lever (34) are all in the unlocked position When the inside lever (32) and the switching lever (34) are rotated in the release direction by opening the inside handle, the switching lever (34) is moved to the engagement end (14a) of the outside lever (14). The door can be opened by abutting and rotating the outside lever (14) in the releasing direction.
[0045]
The sector gear (31) and the switching lever (34) are in the unlocked position, and the locking / unlocking lever (13), the first and second sub levers (16) and (17), the linkage lever (26), and the knob lever (27) are When the inside lever (32) and the switching lever (34) are rotated in the release direction by opening the inside handle when the door is in the locked position, the switching lever (34) is engaged with the engagement end of the outside lever (14). The outside lever (14) is moved from the standby position to the release position by engaging with the portion (14a). Further, at a later timing, as shown in FIG. 16, the protrusion (34a) of the switching lever (34) engages with the engagement portion (26c) of the linkage lever (26), and the linkage lever (26 ) Is moved from the locked position to the unlocked position.
[0046]
The outside lever (14) rotated in the release direction moves the first and second sub levers (16) and (17) in the release direction while being in the locked position. As a result, the second sub-lever (17) moves laterally with the release portion (17b) swinging with respect to the engaging portion (12a) of the open lever (12).
[0047]
In this state, when the locking / unlocking lever (13) is moved from the locking position to the unlocking position via the linkage lever (26), as shown in FIG. The side of 17b) contacts the side surface of the engaging portion (12a) of the open lever (12), and movement in the unlocking direction is prevented. As a result, only the first sub-lever (16) moves from the locking position to the unlocking position together with the locking / unlocking lever (13) against the biasing force of the spring (20).
[0048]
In this state, once the opening operation of the outside handle is stopped and the outside lever (14) is returned to the standby position, the first and second sub levers (16) and (17) are moved back upward, The contact relationship between the release portion (17b) of the second sub lever (17) and the side surface of the engagement portion (12a) of the open lever (12) is released, and the second sub lever (17) is attached with the spring (20). It is moved to the unlocking position by force.
[0049]
Next, when the outside handle is opened again to rotate the outside lever (14) in the releasing direction and the first and second sub levers (16) and (17) are moved in the releasing direction, The release portion (17b) of the sub lever (17) abuts on the engagement portion (12a) of the open lever (12), and the open lever (12) can be rotated in the release direction. As a result, the locking plate (9) can be released from the claw portion (7a) or (7b) of the latch (7), allowing the latch (7) to freely rotate in the opening direction and opening the door. it can.
[0050]
As described above, even when the locking / unlocking means (the locking / unlocking lever (13) and the first and second sub levers (16), (17)) are in the locked state, the first opening operation of the inside handle is performed from the inside of the vehicle. The door can be opened by setting the locking / unlocking means to the unlocked state and performing the second opening operation of the inside handle. Thus, even when the locking / unlocking means is in the locked state, the door can be quickly opened from the inside of the vehicle by a double action operation without unlocking the locking / unlocking operation knob.
[0051]
As shown in FIGS. 12 and 15, when the engagement / disengagement lever (36) is in the locking position, when the knob lever (27) is rotated from the locking position to the unlocking position, the engaging portion ( 27a) cannot engage with the upper end portion (36a) of the engagement / disengagement lever (36). Thereby, even if the locking / unlocking operation knob is moved from the locking position to the unlocking position and the knob lever (27) is rotated to the unlocking position, the knob lever (27) is not rotated from the locking position to the unlocking position. Since it is not transmitted to the linkage lever (26), the door in the locked state cannot be unlocked by an unauthorized act.
[0052]
As described above, the latch body (2) is provided by providing the knob lever (27) and the inside lever (32), which are connected to the locking and unlocking operation knob and the inside handle, on the actuator (3) side. On the side, there is no need to provide any parts for operating the inside of the vehicle. Therefore, the latch body (2) only needs to be provided with the minimum necessary configuration that does not require much design change in accordance with variations of the latch means, locking / unlocking means, etc. Therefore, the latch body (2) can be shared. This can be promoted to reduce the cost.
[0053]
Further, by fixing the cover (22) to the housing (21) and closing the accommodating portion (21b), the inside lever (32) and the switching lever (34) are linked as shown mainly in FIG. The lever (26), the knob lever (27), the sector gear (31) and the like can be provided so as to overlap in the vehicle interior / exit direction. With this configuration, the storage space in the housing (21) can be used effectively, and the actuator (3) can be downsized. Furthermore, rainwater intrusion into the housing part (21b) is prevented, and various parts provided in the housing part (21b) are not tampered with by illegal acts, so that the anti-theft effect can be improved.
[0054]
【The invention's effect】
According to the present invention, the following effects can be achieved.
(A) According to the invention described in claim 1, since the knob lever and the inside lever for the vehicle interior operation system are provided on the actuator side, it is not necessary to provide any components for the vehicle interior operation system on the latch body side. Accordingly, since it is only necessary to provide the minimum necessary parts that do not require much design change, it is possible to promote the sharing of the latch body and reduce the cost.
Moreover, even if the door is in a locked state, the door can be quickly opened from within the vehicle by a double action operation.
Further, since the inside lever and the knob lever can be arranged in the housing accommodating portion, the housing housing space can be used effectively, and the actuator can be downsized.
[0055]
(B) According to the invention described in claim 2, since the linkage lever is also provided on the actuator side, it is possible to further promote the common use of the latch body.
[Brief description of the drawings]
FIG. 1 is a front view of a door latch device according to the present invention.
FIG. 2 is a side view of the door latch device.
FIG. 3 is a front view of the latch body and the actuator before assembly.
4 is an IV arrow view in FIG. 3 showing the internal structure of the latch body when the latch is in the open position.
5 is an IV arrow view in FIG. 3 showing the internal structure of the latch body when the latch is in the closed position.
FIG. 6 is a side view of the latch body.
FIG. 7 is a side view of the latch body when the double action operation is performed.
8 is a cross-sectional plan view taken along line VIII-VIII in FIG.
FIG. 9 is an enlarged side view of the main part of the latch body.
FIG. 10 is a side view of the detection lever.
11 is a view taken along arrow XI in FIG.
FIG. 12 is a front view of the actuator with a housing cover removed.
FIG. 13 is a back view showing an inner surface side of a cover in the actuator.
14 is a longitudinal sectional view taken along line XIV-XIV in FIG.
FIG. 15 is a front view of the main part of the actuator.
FIG. 16 is an enlarged front view of the main part of the actuator when a double action operation is performed.
[Explanation of symbols]
(1) Door latch device
(2) Latch body
(3) Actuator
(4) Body
(4a) Mating hole
(4b) Passing hole
(4c) Housing part
(5) Axis
(6) striker
(7) Latch (meshing means)
(7a) (7b) Claw
(7c) Cam groove
(8) Axis
(9) Locking plate (meshing means)
(10) Detection lever
(10a) Shaft
(10b) Arm
(10c) Blocking part
(10d) Projection
(10e) Detector
(11) Base plate
(11a) Folding part
(12) Open lever
(12a) Engagement part
(13) Locking / unlocking lever (locking / unlocking means)
(13a) Shaft
(13b) Projection
(13c) Engagement part
(13d) Connecting part
(14) Outside lever
(14a) Engagement end
(15) Axis
(16) 1st sub-lever (locking / unlocking means)
(16a) Long hole
(16b) Contact part
(17) Second sub lever (locking / unlocking means)
(17a) Shoulder
(17b) Release part
(18) Spring
(19) Connecting shaft
(20) Spring
(21) Housing
(21a) Cover
(21b) Housing part
(22) Cover
(23) 1st motor
(23a) Warm
(24) Second motor
(25) Worm wheel
(25a) Pinion
(26) Linking lever
(26a) Connecting hole
(26b) Shoulder
(26c) Engagement part
(27) Knob lever
(27a) Engagement part
(28) (29) Axis
(30) Gear
(31) Sector gear
(31a) (31b) Long hole
(32) Inside lever
(33) Axis
(34) Switching lever
(34a) Projection
(35) Axis
(36) Engagement lever
(36a) Upper end
(36b) Projection
(37) Spring
(38) Cover plate
(39) Detection switch
(39a) Actuator
(40) (41) Linking member

Claims (2)

Engaging means that can be engaged with and disengaged from the striker, a body for accommodating the engaging means, a base plate fixed to the body, and an open supported by the base plate and releasing the engagement between the striker and the engaging means A lever, an outside lever supported by the base plate and movable in the release direction by an opening operation of an outside handle for opening the door provided on the outside of the vehicle , and supported by the base plate and provided on the inside of the vehicle A locking / unlocking lever that can be moved between an unlocking position and a locking position by operating a locking / unlocking operation knob, and the outside lever and the locking / unlocking lever are linked together, and the unlocking position is always linked to the locking / unlocking lever. A first sub-lever movable to a locking position, and connected to the first sub-lever, and the first sub-lever is in the unlocking position. When the outside lever moves in the release direction, the open lever can be moved in the release direction by engaging with the engaging portion of the open lever, and the first sub lever is in the locking position. A second sub-lever having a release portion that swings with respect to the engaging portion of the open lever, and the locking / unlocking lever is moved while the second sub-lever is swung to the engaging portion. The first sub-lever is moved to the unlocking position with the second sub-lever in contact with the side surface of the engaging portion by being moved from the locking position to the unlocking position, and then the outside lever Is moved to the standby position so that the second sub-lever is moved to the unlocked position by the biasing force of the spring, and is attached to the latch body. In automotive door latch device including an actuator with a built-in motor for moving said locking-unlocking lever in the locking position and the unlocking position,
The actuator includes a housing that is fixed to the base plate and that houses the motor, and a cover that is fixed to the housing and closes a housing portion of the housing that houses the motor,
The housing housing portion of the actuator is rotated in the release direction by opening the inside handle provided on the inside of the vehicle to operate the outside lever in the release direction, and the unlocking lever is released from the locking position. The inside lever linked to the locking / unlocking lever to be moved to the locking position and the locking / unlocking operation of the locking / unlocking operation knob provided inside the vehicle can be moved between the unlocking position and the locking position, and the locking / unlocking lever Arrange the knob lever to be connected ,
An automotive door latch device characterized in that the knob lever is pivotally mounted in a housing portion of the housing, and the inside lever is pivotally mounted on an inner surface of the cover facing the housing housing portion .   The locking / unlocking lever and the knob lever are coupled to the housing housing portion of the actuator via a linkage lever that is movably provided. The automobile door latch device according to claim 1, wherein the door latch device is moved from the locking position to the unlocking position.

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