KR101393505B1 - Door latch for vehicle - Google Patents

Abstract

A vehicle door latch is disclosed. According to an aspect of the present invention, there is provided a vehicle door comprising: a base frame mounted on one side of a door for a vehicle; A catch lever provided on the base frame and coupled to the striker to restrain the vehicle door in a closed state; An OS lever mounted on the base frame so as to be rotatable about a first rotation axis, connected to the out handle cable and rotated according to an operation of the out handle cable, and linked with the catch lever to release the catch lever; A release lever mounted on the base frame so as to be rotatable about a first rotation axis and linked with the OS lever and rotated in association with the OS lever; And a second lever which is mounted on the base frame so as to be rotatable about the second rotation axis so as to be adjacent to the release lever, is linked with the release lever and rotates in conjunction with the release lever, And an upper lever to which the upper latch cable is connected to actuate the door latch to unfasten the upper door latch.

Description

{DOOR LATCH FOR VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door latch for a vehicle, and more particularly to a door latch for a vehicle having functions of a door latch and a controller.

In recent years, a pillarless structure in which a pillar is removed between a front door and a rear door has been applied to a vehicle in order to increase the space utilization and aesthetics of the vehicle. In the case of a vehicle to which a filaress structure is applied, since there are no pillars for supporting or fixing the door between the front and rear doors, a plurality of door latches are mounted on the door, unlike the ordinary door.

1 is a schematic view showing a door latch and a controller arrangement in a vehicle to which a fileless structure is applied.

Referring to FIG. 1, in the case of a vehicle having a filaress structure, a plurality of door latches are mounted on the door D so as to fix or restrain the door D to the vehicle body frame. 1, the upper door latch U is mounted on the upper side of the door D, the lower door latch L is mounted on the lower side of the door D, and the upper door latch U and the lower door latch L so that the door D is locked in the closed state.

The upper door latch U and the lower door latch L must be operated through an inner handle or an out handle attached to the door D so that the door D is operated by the operation of the inner handle and the out handle, A controller C is provided to enable the latch U or the lower door latch L to be operated. The controller C is also connected to the upper and lower door latches U and L so that the operation force of the inner and outer handles is transmitted to the upper door latch U And the lower door latch L, respectively.

As described above, the upper door latch U, the lower door latch L, and the controller C are provided on the door D, respectively, in the case of the pillars-structured vehicle, Likewise, the upper door latch U is connected to the upper side of the door D, the lower door latch L is connected to the lower side of the door D, the controller C is connected to the door D, Respectively.

In addition, the controller C is connected to an inner handle or an out handle via a cable or the like, and is also connected to various button manipulators or a vehicle control unit for door lock setting and child lock setting, if necessary. In addition, the upper door latch U and the lower door latch L are also connected to the controller C through a cable or the like in a complicated manner.

Therefore, the structure of the door D is more complicated than that of a conventional vehicle, and a plurality of cables, a link structure, and the like are mixed in the door D, It becomes narrow. Further, a malfunction may easily occur due to interference with other convenience devices or additional devices mounted on the door D, and even if a damage or an error occurs, a complicated structure makes inspection and repair very inconvenient.

Embodiments of the present invention are intended to provide a door latch for a vehicle which can simplify the structure inside the door by combining functions of a door latch and a controller.

According to an aspect of the present invention, there is provided a vehicle door comprising: a base frame mounted on one side of a door for a vehicle; A catch lever provided on the base frame and coupled to the striker to restrain the vehicle door in a closed state; An OS lever mounted on the base frame so as to be rotatable about a first rotation axis, connected to the out handle cable and rotated according to an operation of the out handle cable, and linked with the catch lever to release the catch lever; A release lever mounted on the base frame so as to be rotatable about a first rotation axis and linked with the OS lever and rotated in association with the OS lever; And a second lever which is mounted on the base frame so as to be rotatable about the second rotation axis so as to be adjacent to the release lever, is linked with the release lever and rotates in conjunction with the release lever, And an upper lever to which the upper latch cable is connected to actuate the door latch to unfasten the upper door latch.

The door latch for a vehicle according to the embodiments of the present invention can combine the functions of the door latch and the controller and can integrate the controller that transmits the operation force of the inner handle or the out handle and the door latch that restrains the door . Accordingly, the number of parts mounted on the door can be minimized and the internal structure of the door can be simplified.

1 is a schematic view showing a door latch and a controller arrangement in a vehicle to which a fileless structure is applied.
2 is a first perspective view of a door latch for a vehicle according to an embodiment of the present invention.
3 is a second perspective view of a door latch for a vehicle according to an embodiment of the present invention.
4 is an exploded perspective view showing the first link lever, the release lever, and the OS lever mounted on the front surface of the first base frame.
5 is a perspective view of the first link lever shown in Fig.
6 is a perspective view of the release lever shown in FIG.
7 is a perspective view of the OS lever shown in Fig.
8 is a perspective view showing a link bar mounted on the front surface of the first base frame.
9 is a schematic view showing the arrangement state of the first link lever, the release lever, and the OS lever according to the position of one end of the link bar.
10 is a perspective view showing the upper lever mounted on the front surface of the first base frame.
11 is a perspective view showing the rear surface of the first base frame.
12 is an exploded perspective view of the pawl lever and the catch lever mounted on the rear surface of the first base frame.
13 is a perspective view of the pawl lever mounted on the rear surface of the first base frame.
14 is an exploded perspective view showing the inner lever and the second link lever mounted on the front surface of the second base frame.
15 is a perspective view showing the inner lever mounted on the front surface of the second base frame.
16 is a perspective view showing the second link lever mounted on the front surface of the second base frame.
17 is a schematic view showing the movement of the second link lever 220 according to the operation of the child lock lever.
18 is a perspective view showing the rear surface of the second base frame.
19 is an exploded perspective view showing the child lock lever mounted on the rear surface of the second base frame.
20 is a first operating state view of a door latch for a vehicle according to an embodiment of the present invention when the door is opened with an out handle.
21 is a second operating state view of the door latch for a vehicle according to the embodiment of the present invention when the door is opened by an out handle.
22 is an operational state diagram of a door latch for a vehicle according to an embodiment of the present invention when the door is opened with the inner handle.
23 is an operational state diagram of a door latch for a vehicle according to an embodiment of the present invention when the door lock state is set.
24 is an operational state diagram of a door lock for a car according to an embodiment of the present invention when the child lock is set.

Hereinafter, a door latch for a vehicle according to an embodiment of the present invention will be described with reference to the drawings.

2 is a first perspective view of a door latch for a vehicle according to an embodiment of the present invention. 3 is a second perspective view of a door latch for a vehicle according to an embodiment of the present invention.

2 and 3, In the embodiment  For vehicles The door latch 100  And may include a base frame 110.

The base frame 110 forms the overall exoskeleton of the door latch 100 for a vehicle.

The base frame 110 may be formed of a first base frame 111 formed on the X-Z plane and a second base frame 112 formed on the Y-Z plane. The first and second base frames 111 and 112 are integrally formed to form one base frame 110.

The first and second base frames 111 and 112 may have a front surface and a rear surface, respectively. 1 is referred to as the front surface of the first base frame 111 and the opposite surface is referred to as the rear surface of the first base frame 111 . One side of the second base frame 112, which is mainly seen in FIG. 1, will be referred to as the front side of the second base frame 112, and the opposite side will be referred to as the rear side of the second base frame 112.

4 is an exploded perspective view showing the first link lever, the release lever, and the OS lever mounted on the front surface of the first base frame. 5 is a perspective view of the first link lever shown in Fig.

4 and 5, In the embodiment  For vehicles The door latch 100  The first link lever ( 120)  .

The first link lever 120 may be mounted on the front surface of the first base frame 111. The first link lever 120 may be formed to be rotatable about the first rotation axis R1.

A first link bar interlocking protrusion 121 may be formed on one side of the first link lever 120. The first link bar interlocking projection 121 interlocks the link bar 150 and the first link lever 120, which will be described later.

A pawl coupling part 122 may be formed on the other side of the first link lever 120. The pawl lever coupling part 122 may be coupled to one end of the pawl lever 180 mounted on the rear surface of the first base frame 111. [ More specifically, the pawl lever fastening part 122 may be formed of a U-shaped bracket, and one end of the pawl lever 180 may be bent toward the front side of the first base frame 111 to be engaged with the pawl fastening part 122 . Therefore, the first link lever 120 and the pawl lever 180 are interlocked and rotated together.

The first base frame 111 is formed with a first guide hole 121 so that one end of the pawl lever 180 is bent toward the front side of the first base frame 111 and is fastened to the pawl connection portion 122, (113) can be formed through. The first guide hole 113 may be formed along the rotation radius of the first rotation axis R1 so as not to interfere with the rotation of the pawl lever 180 or the first link lever 120. [

Further, if necessary, the first link lever 120 may be provided with an elastic member for providing a restoring force.

6 is a perspective view of the release lever shown in FIG.

Referring to FIGS. 4 and 6, In the embodiment  For vehicles The door latch 100 The release lever 130  .

The release lever 130 may be mounted on the front surface of the first base frame 111 and may be disposed on the upper side of the first link lever 120. Further, the release lever 130 may be formed to be rotatable about the first rotation axis R1.

The release lever 130 may have a first link hole 131 formed therein. The first link hole 131 is formed through the release lever 130 and may extend in the radial direction of the first rotation axis R1. A link bar 150 to be described later can be fastened to the first link hole 131 and the link bar 150 can be moved a predetermined distance along the first link hole 131. That is, the link bar 150 may be moved along the first link hole 131, and may be disposed at a position near the first rotation axis R 1 or at a position far from the first rotation axis R 1. This will be described in further detail with reference to the link bar 150.

Meanwhile, the first link bar interlocking protrusion 121 of the first link lever 120 may be disposed below the first link hole 131. At this time, the first link bar interlocking protrusion 121 is formed only to a position close to the first rotation axis R1, and when the link bar 150 is located near the first rotation axis R1, the interference with the link bar 150 When the link bar 150 is located at a position far from the first rotation axis R1, the link bar 150 may not be interfered with the link bar 150. This will be described in further detail with reference to the link bar 150.

On the other hand, the upper lever contact portion 132 may be formed on one side of the release lever 130. The upper lever contact portion 132 can interlock the release lever 130 and the upper lever 160. More specifically, the upper lever contact portion 132 pushes the upper lever 160 when the release lever 130 rotates, whereby the upper lever 160 is rotated in conjunction with the release lever 130.

Further, if necessary, the release lever 130 may be provided with an elastic member for providing a restoring force.

7 is a perspective view of the OS lever shown in Fig.

Referring to FIGS. 4 and 7, In the embodiment  For vehicles The door latch 100 OS lever( 140)  .

The OS lever 140 may be mounted on the front surface of the first base frame 111 and may be disposed on the upper side of the release lever 130. In addition, the OS lever 140 may be formed to be rotatable about the first rotation axis R1.

The OS lever 140 may be formed with a second link bar cooperating projection 141. The second link bar interlocking projection 141 corresponds to the first link bar interlocking projection 121 of the first link lever 120 and links the link bar 150 and the OS lever 140 together. The second link bar interlocking protrusion 141 may be disposed on the upper side of the first link hole 131 and may be formed only to a position nearer to the first rotation axis R1 than the first link bar interlocking protrusion 121 . This is for interlocking the OS lever 140 and the link bar 150 only when the link bar 150 is located near the first rotation axis R1. This will be described in further detail with reference to the link bar 150.

An out handle coupling hole 142 may be formed at one end of the OS lever 140. Out handle coupling hole 142 may be formed to be long along the rotation radius of the first rotation axis R1. One end of the out handle cable C1 may be fastened to the out handle fastening hole 142. Accordingly, the OS lever 140 rotates about the first rotation axis R1 in accordance with the operation of the out handle cable C1.

On the other hand, the inner lever contact portion 143 may be formed on the other end side of the OS lever 140. The inner lever contact portion 143 can interlock the OS lever 140 provided on the first base frame 111 and the second link lever 220 provided on the second base frame 112. [ The inner lever contact portion 143 is brought into contact with the OS lever contact portion 222 provided in the second link lever 220 so that the OS lever 140 is brought into contact with the inner lever contact portion 143. Therefore, And is rotated about the first rotation axis R1. The second link lever 220 will be further described below.

Further, if necessary, an elastic member may be added to the OS lever 140 to provide a restoring force.

8 is a perspective view showing a link bar mounted on the front surface of the first base frame.

Referring to Figures 2, 3 and 8, In the embodiment  For vehicles The door latch 100  Link bar ( 150)  .

The link bar 150 may be mounted on the front surface of the first base frame 111.

One end of the link bar 150 may be inserted into the first link hole 131 formed in the release lever 130. The first link hole 131 is formed to be long along the radius of the first rotation axis R1 so that one end of the link bar 150 can be moved along the first link hole 131 by a predetermined amount. Specifically, one end of the link bar 150 may be located nearer to the first rotation axis R1, or may be located farther from the first rotation axis.

9 is a schematic view showing the arrangement state of the first link lever, the release lever, and the OS lever according to the position of one end of the link bar.

9, when one end of the link bar 150 is located near the first rotation axis R1, one end of the link bar 150 is connected to the first link bar interlocking protrusion (not shown) of the first link lever 120 121 and the second link bar interlocking protrusion 141 of the OS lever 140 are interfered. In this case, when one end of the link bar 150 moves a predetermined distance in the rotation radius direction of the first rotation axis R1, one end of the link bar 150 is engaged with the first and second link bar cooperating protrusions 121 The first link lever 120, the release lever 130 and the OS lever 140 are rotated around the first rotation axis R1. Hereinafter, for convenience of description, it is assumed that the link bar 150 is in the activated position L1 when one end of the link bar 150 is in the above-described position.

When one end of the link bar 150 is located farther from the first rotation axis R1, one end of the link bar 150 does not interfere with the first and second link bar cooperating protrusions 121 and 141. In this case, even if one end of the link bar 150 moves a predetermined distance in the radial direction of rotation of the first rotation axis R1, the first link lever 120 and the OS lever 140 are not affected, Only the release lever 130 rotates about the first rotation axis R1 due to the one link hole 131. [ Hereinafter, for convenience of description, it is assumed that the link bar 150 is in the inactive position L2 when one end of the link bar 150 is in the above-described position.

The link structure of the link bar 150 may transmit the operation force of the out handle cable C1 or the inner handle cable C3 to the first link lever 120 and the OS lever 140, To be transmitted. This will be further explained in the description of the operation of this embodiment.

Meanwhile, the other end of the link bar 150 may be fastened to the locking lever 170 mounted on the first base frame 111. Therefore, the link bar 150 can be moved by a predetermined amount in accordance with the rotation of the locking lever 170. That is, one end of the link bar 150 moves along the first link hole 131 of the release lever 130 as the locking lever 170 rotates. In other words, the link bar 150 can be moved to the activated position L 1 or the inactive position L 2 in accordance with the rotation of the locking lever 170.

2 and 3, In the embodiment  For vehicles The door latch 100  Out handle cable ( C1)  .

One end of the out handle cable C1 can be fastened to the out handle coupling hole 142 formed in the OS lever 140 and the OS lever 140 is rotated by a predetermined degree. The other end of the out handle cable C1 may be connected to an out handle provided on the door of the vehicle. Thus, the out handle cable C1 pulls the OS lever 140 as the user operates the out handle. At this time, the out handle cable C1 may be directly or indirectly connected to the out handle, or may be mechanically or electrically connected.

10 is a perspective view showing the upper lever mounted on the front surface of the first base frame.

Referring to Figures 2, 3 and 10, In the embodiment  For vehicles The door latch 100  Upper lever ( 160)  .

The upper lever 160 can be mounted on the front surface of the first base frame 111. The upper lever 160 may be formed to be rotatable around the second rotation axis R2.

A release lever contact portion 161 may be formed on one side of the upper lever 160. The release lever contact portion 161 can link the upper lever 160 and the release lever 130 together. That is, when the release lever 130 is rotated, the upper lever contact portion 132 formed on the release lever 130 contacts the release lever contact portion 161 formed on the upper lever 160 to push the upper lever 160 a predetermined distance Thus, the upper lever 160 rotates about the second rotation axis R2 by a predetermined degree.

On the other hand, the upper latch cable (C2) can be fastened to the other side of the upper lever (160).

Further, if necessary, the upper lever 160 may be provided with an elastic member for providing a restoring force.

Referring to Figures 2, 3 and 10, In the embodiment  For vehicles The door latch 100  Upper Latch Cable ( C2)  .

One end of the upper latch cable (C2) can be fastened to the upper lever (160). Therefore, the upper latch cable C2 is pulled or loosened as the upper lever 160 rotates.

Meanwhile, the other end of the upper latch cable C2 may be connected to the upper door latch U (see Fig. 1). The upper latch cable C2 can be directly or indirectly connected to the upper door latch U and can be mechanically or electrically connected.

At this time, the upper door latch U is a locking means provided on the other side of the vehicle door, and may include a conventional door latch for a vehicle. Further, the upper door latch U can be operated by pulling or loosening of the upper latch cable C2. That is, the upper door latch U can be formed to unbind the door when the upper latch cable C2 is pulled. The upper door latch U may be anything that can be operated by the operation of the upper latch cable C2, and conventionally known various types of door latches for a vehicle can be applied, and a detailed description thereof will be omitted.

2 and 3, In the embodiment  For vehicles The door latch 100 The locking lever 170  .

The locking lever 170 may be mounted on the front surface of the first base frame 111. The locking lever 170 may be formed to be rotatable around the third rotation axis R3.

A link bar 150 may be fastened to one side of the locking lever 170. That is, one end of the link bar 150 is fastened to the first link hole 131 of the release lever 130, and the other end is fastened to the locking lever 170. Therefore, when the locking lever 170 rotates about the third rotation axis R3, the link bar 150 moves along the first link hole 131 at one end thereof.

At this time, when the locking lever 170 is rotated to a predetermined extent by one side, the link bar 150 can be moved to the activated position L1, which is close to the first rotation axis R1. On the other hand, when the locking lever 170 rotates to a predetermined degree, the link bar 150 can be moved to the inactive position L2, which is a position distant from the first rotation axis R1. That is, the locking lever 170 is rotated about the third rotational axis R3 to move the link bar 150 to the activated position L1 or the inactive position L2 (FIG. 9 and the link bar 150) See relevant description).

On the other hand, the locking lever 170 can be rotated about the third rotation axis R3 by an instruction from the user or the vehicle control unit. That is, the locking lever 170 is mechanically or electrically connected to a door locking button provided on the vehicle, and can be rotated around the third rotation axis R3 as the user operates the door locking button. Further, the locking lever 170 is mechanically or electrically connected to the vehicle control unit, and can be rotated around the third rotation axis R3 by an instruction from the vehicle control unit. For example, when the vehicle is operated at a predetermined speed or more, or when there is an operation of a vehicle key, the vehicle control unit can rotate the locking lever 170.

11 is a perspective view showing the rear surface of the first base frame. 12 is an exploded perspective view of the pawl lever and the catch lever mounted on the rear surface of the first base frame. 13 is a perspective view of the pawl lever mounted on the rear surface of the first base frame.

11 to 13, In the embodiment  For vehicles The door latch 100 The pawl lever 180  .

The pawl lever 180 may be mounted on the rear surface of the first base frame 111. The pawl lever 180 may be formed to be rotatable around the first rotation axis Rl. That is, the pawl lever 180 may be formed to be rotatable about the same axis as the first link lever 120, the release lever 130, and the OS lever 140 mounted on the front surface of the first base frame 111 have.

The pawl lever 180 may have a first locking protrusion 181 formed thereon. The first latching protrusion 181 may be formed by protruding the outer surface of one side of the pawl lever 180 to a predetermined degree and is engaged with the second latching protrusion 192 of the catch lever 190 The rotation of the rotor is restrained.

One end of the pawl lever 180 is bent toward the front side of the first base frame 111 and can be fastened to the pawl engaging portion 122 of the first link lever 120 as described above And the first link lever 120). The pawl lever 180 rotates in conjunction with the first link lever 120 on the front surface of the first base frame 111 and the pawl lever 180 and the first link The first guide hole 113 is formed so as to be able to be fastened between the levers 120.

The first buffer member 182 may be interposed between the pawl lever 180 and the first base frame 111 as required. The first cushioning member 182 can contact the one side of the pawl lever 180 when rotating the pawl lever 180 to perform a cushioning function.

Further, if necessary, an elastic member may be added to the pawl lever 180 to provide a restoring force.

11 and 12, In the embodiment  For vehicles The door latch 100 The catch lever 190  .

The catch lever 190 may be mounted on the rear surface of the first base frame 111. The catch lever 190 may be formed to be rotatable around the fourth rotation axis R4.

The catch lever 190 can be locked with a striker to restrain the door in a closed state. To this end, the catch lever 190 may be provided with a striker coupling groove 191 to which the striker is coupled, and the striker is engaged with the striker coupling groove 191 to restrict the door in a closed state. This is well known in the structure of a conventional door latch for a vehicle, and a detailed description thereof will be omitted.

On the other hand, the catch lever 190 may be provided with a second locking protrusion 192. The second latching protrusion 192 may be formed by protruding one side of the catch lever 190 to a predetermined degree and engage with the first latching protrusion 181 of the pawl lever 180, The rotation of the rotor is restrained. That is, when the striker is engaged with the catch lever 190 to close the door, the first and second engaging protrusions 181 and 192 restrain the rotation of the catch lever 190 so that the catch lever 190 is in a state of being engaged with the striker .

A second cushioning member 193 may be interposed between the catch lever 190 and the first base frame 111. An air damping hole 194 may be formed in the collision portion between the catch lever 190 and the striker, May be formed. The second cushioning member 193 and the air damping hole 194 can perform a shock absorbing function when the catch lever 190 collides with the striker.

Further, if necessary, the catch lever 190 may be provided with an elastic member for providing a restoring force.

14 is an exploded perspective view showing the inner lever and the second link lever mounted on the front surface of the second base frame. 15 is a perspective view showing the inner lever mounted on the front surface of the second base frame.

14 and 15, In the embodiment  For vehicles The door latch 100 The inner lever 210  .

The inner lever 210 may be mounted on the front surface of the second base frame 112. The inner lever 210 may be rotatable around a fifth rotation axis R5 formed on the second base frame 112. [

The inner lever 210 can be fastened to the second link lever 220, which will be described later. That is, one side of the inner lever 210 is coupled to the inner lever coupling part 221 formed on the second link lever 220, and can be rotated together with the second link lever 220.

Further, the inner handle cable (C3) can be fastened to the other side of the inner lever (210). Therefore, the inner lever 210 is rotated according to the operation of the inner handle cable C3.

Further, if necessary, an elastic member may be added to the inner lever 210 to provide a restoring force.

14 and 15, In the embodiment  For vehicles The door latch 100  Inner handle cable ( C3 ).

One end of the inner handle cable (C3) can be fastened to the inner lever (210). Accordingly, the inner lever 210 rotates about the fifth rotation axis R5 by a predetermined degree as the inner handle cable C3 is pulled or loosened.

The other end of the inner handle cable (C3) can be connected to an inner handle provided on the vehicle door. Accordingly, the inner handle cable C3 is pulled or relaxed to a predetermined degree according to the operation of the inner handle. On the other hand, the other end of the inner handle cable C3 may be directly or indirectly connected to the inner handle, and may be mechanically or electrically connected to the inner handle.

16 is a perspective view showing the second link lever mounted on the front surface of the second base frame.

14 and 16, In the embodiment  For vehicles The door latch 100  The second link lever ( 220)  .

The second link lever 220 may be mounted on the front surface of the second base frame 112.

The second link lever 220 may be formed with an OS lever contact portion 222. The OS lever contact portion 222 is for interlocking the second link lever 220 and the OS lever 140 and corresponds to the inner lever contact portion 143 formed in the OS lever 140. [

2 and 3, when the OS lever 140 rotates, the inner lever contact portion 143 formed on the OS lever 140 contacts the OS lever contact portion 222 formed on the second link lever 220 The second link lever 220 is rotated about the fifth rotation axis R5 by a predetermined amount in conjunction with the OS lever 140. The second link lever 220 is in contact with the second link lever 220,

Referring again to FIGS. 14 and 16, the second link lever 220 can be fastened to the fifth rotation axis R5 forming the center of rotation of the inner lever 210. As shown in FIG. At this time, the second link lever 220 may be formed with a second link hole 223 to which the fifth rotation axis R5 is coupled, and the second rotation axis R2 may be formed into a long shape . The second link lever 220 is movable with respect to the fifth rotation axis R5 through the second link hole 223 as described above. That is, the second link hole 223 having the long hole shape is fastened to the fifth rotation shaft fixed to the second base frame 112, so that the second link lever 220 moves a predetermined distance along the second link hole 223 .

The second link hole 223 may be formed in a direction corresponding to the second guide hole 114b described later. This is to allow the second link lever 220 to be moved by a predetermined amount by the child lock lever 230. This will be described below in connection with the link protrusion 224.

The second link lever 220 may be formed with an inner lever engaging portion 221. The inner lever 210 can be fastened to the inner lever fastening portion 221. The second link lever 220 and the inner lever 210 can be interlocked with each other when the inner lever 210 is fastened to the inner lever fastening portion 221. That is, when the inner lever 210 is rotated by the inner handle cable C3, the second link lever 220 rotates together with the second link lever 220.

As described above, the second link lever 220 can be moved along the second link hole 223 by a predetermined amount. When the second link lever 220 is moved, The lever 210 can be disengaged. In this case, the linkage relationship between the second link lever 220 and the inner lever 210 is released. That is, even if the inner lever 210 is rotated, the second link lever 220 interlocks and is not rotated together. This will be described below in connection with the link protrusion 224.

On the other hand, a link protrusion 224 may be formed on the rear surface of the second link lever 220. The link protrusion 224 may protrude toward the rear surface of the second base frame 112 and may be exposed to the rear side of the second base frame 112 and may be fastened to a child lock lever 230 described later.

At this time, the second guide hole 114 may be formed in the second base frame 112 so that the link protrusion 224 can be fastened to the child lock lever 230 as described above. The second guide hole 114 includes an 2a guide hole 114a formed along the radius of rotation of the fifth rotary shaft R5 and a 2b guide hole 114b extended radially outward from the 2a guide hole 114a. As shown in FIG. The second guide hole 114a prevents interference between the link protrusion 224 and the second base frame 112 when the second link lever 220 rotates about the fifth rotation axis R5. The second b guide hole 114b guides the movement of the link protrusion 224 when releasing the linkage relationship between the second link lever 220 and the inner lever 210. [

The link protrusion 224 is engaged with the child lock lever 230 to be described later so that the second link lever 220 is moved to the activation position L3 or the inactive position L4 according to the operation of the child lock lever 230. [ As shown in FIG.

17 is a schematic view showing the movement of the second link lever 220 according to the operation of the child lock lever.

17A, when the link protrusion 224 is positioned on the upper side of the second b guide hole 114b, the inner lever fastening portion 221 formed on the second link lever 220 is provided with the inner lever The fifth rotation axis R5 is positioned on the lower side of the second link hole 223 formed in the second link lever 220. [ In this case, since the inner lever 210 is engaged with the inner lever engaging portion 221, the second link lever 220 and the inner lever 210 are interlocked with each other. Hereinafter, the case where the second link lever 220 is in the above-described position will be referred to as the second link lever 220 being in the activated position L3.

17 (b), in the above state, the link protrusion 224 may be moved along the second guide hole 114b and be positioned on the lower side of the second guide hole 114b . In this case, the fifth rotation axis R5 is positioned on the upper side of the second link hole 223 formed on the second link lever 220, and the inner lever 210 is positioned on the second link lever 220 The engagement between the inner lever 210 and the second link lever 220 is released. Therefore, the interlocking relationship between the inner lever 210 and the second link lever 220 is released, and even if the inner lever 210 is rotated about the fifth rotation axis R5, the second link lever 220 does not rotate State. Hereinafter, the case where the second link lever 220 is at the above-mentioned position will be referred to as the second link lever 220 being in the inactive position L4.

18 is a perspective view showing the rear surface of the second base frame. 19 is an exploded perspective view showing the child lock lever mounted on the rear surface of the second base frame.

18 and 19, In the embodiment  For vehicles The door latch 100 The child lock lever 230  .

The child lock lever 230 may be mounted on the rear surface of the second base frame 112 and may be rotatable about the sixth rotation axis R6.

The child lock lever 230 can switch the second link lever 220 to the activated position L3 or the inactive position L4 by moving the link protrusion 224 along the second guide hole 114b. The third link hole 231 may be formed on one side of the child lock lever 230 and the link protrusion 234 protruded from the second link lever 220 may be formed in the third link hole 231. [ 224 can be fastened. Accordingly, when the child lock lever 230 is rotated about the sixth rotation axis R6, the child lock lever 230 pushes or pulls the link protrusion 224 to move along the second guide hole 114b. Meanwhile, the third link hole 231 may be formed long along the radius of rotation of the fifth rotation axis R5. This is so as not to interfere with the movement of the link projection 224 when the second link lever 220 is in the activated position L3.

Hereinafter, the operation of the door latch for a vehicle according to one embodiment of the present invention will be described.

first, door  From the closed state through the out handle door  Explains the operation at the time of opening.

20 is a first operating state view of a door latch for a vehicle according to an embodiment of the present invention when the door is opened with an out handle.

Referring to FIG. 20, when the user operates the out handle in the door closed state, the out handle cable C1 is pulled in the direction A in FIG. Further, as the out handle cable C1 is pulled, the OS lever 140 rotates around the first rotation axis R1.

At this time, the second link bar interlocking protrusion 141 of the OS lever 140 pushes the link bar 150. Since the link bar 150 is fastened to the first link hole 131 of the release lever 130, the release lever 130 is also interlocked with the link bar 150, . Also, since the link bar 150 pushes the first link bar interlocking protrusion 121, the first link lever 120 is also rotated about the first rotation axis R1. That is, the rotation of the OS lever 140 is transmitted to the release lever 130 and the first link lever 120 by the link bar 150 so that the OS lever 140, the release lever 130, (See FIG. 9 and the description of the link bar 150) together.

21 is a second operating state view of the door latch for a vehicle according to the embodiment of the present invention when the door is opened by an out handle.

21, since the first link lever 120 is coupled to the pawl lever 180 mounted on the rear surface of the first base frame 111, as the first link lever 120 is rotated, (180) is also rotated about the first rotation axis (R1).

As the pawl lever 180 is rotated, the engaging engagement between the first and second engaging projections 181 and 192 that have restrained the rotation of the catch lever 190 is released, and the striker can be released from the striker engagement groove 191 do. That is, the restraint of the door due to the engagement between the catch lever 190 and the striker is released.

20, when the release lever 130 is rotated, the upper lever contact portion 132 formed on the release lever 130 pushes the release lever contact portion 161 formed on the upper lever 160. As shown in FIG. Therefore, the upper lever 160 is rotated about the second rotation axis R2, whereby the upper latch cable C2 is pulled. The upper latch cable C2 releases the upper door latch U (see Fig. 1) mounted on the other side of the door.

Thus, the door is completely unfastened and opened.

to the next, door  In a closed state The inner handle  through door  Explains the operation at the time of opening.

22 is an operational state diagram of a door latch for a vehicle according to an embodiment of the present invention when the door is opened with the inner handle.

Referring to Fig. 22, when the user operates the inner handle in the door closed state, the inner handle cable C3 is pulled in the direction B in Fig. Further, as the inner handle cable C3 is pulled, the inner lever 210 rotates about the fifth rotation axis R5.

At this time, since the inner lever 210 is fastened to the inner lever coupling portion 221 of the second link lever 220, the second link lever 220 is coupled to the fifth rotation axis R5. (See the description related to Fig. 14 and the second link lever 220).

The OS lever contact portion 222 formed on the second link lever 220 pushes the inner lever contact portion 143 formed on the OS lever 140 as the second link lever 220 is rotated. Therefore, the OS lever 140 rotates around the first rotation axis R1 in conjunction with the second link lever 220. [

As the OS lever 140 rotates, the second link bar interlocking protrusion 141 formed on the OS lever 140 pushes the link bar 150, and the first link lever 150 120 and the release lever 130 are rotated together with the OS lever 140 so that the door is unlocked. The operation in which the OS lever 140, the first link lever 120, and the release lever 130 are rotated together to unlock the door has been described above in the operation relating to the door opening through the out handle. It is omitted.

to the next, door  The operation at the time of setting the lock state will be described.

23 is an operational state diagram of a door latch for a vehicle according to an embodiment of the present invention when the door lock state is set.

The door lock state of this operation example means a state in which the door is not opened even though the operation of the inner handle or the out handle is made. The door lock state can be set by a user's operation (for example, a door lock button operation) or a vehicle control section (for example, when the vehicle is traveling at a speed higher than a set speed).

Referring to FIG. 23, when the door lock state is set, the locking lever 170 is rotated about the third rotation axis R3 by a predetermined degree. The other end of the link bar 150 is moved along the first link hole 131 by a predetermined amount due to the rotation of the locking lever 170. In this case, since the link bar 150 is fastened to the locking lever 170, . That is, as the locking lever 170 is rotated, the other end of the link bar 150 fastened to the first link hole 131 is moved away from the first rotation axis R 1 along the first link hole 131 do. In other words, the other end of the link bar 150 is moved from the activated position L1 to the inactive position L2 along the first link hole 131 (see the description related to FIG. 9 and the link bar 150).

Since the first and second link bar cooperating protrusions 121 and 141 are formed only in the vicinity of the first rotation axis R1 as described above, the link bar 150 is moved away from the first rotation axis R1 The link bars 150 do not interfere with each other. In other words, as the link bar 150 is moved to the inactive position L2, the link bar 150 is not brought into contact with or interfered with the first and second link bar cooperating protrusions 121 and 141.

In this case, even if the OS lever 140 is rotated, the second link bar interlocking projection 141 does not push the link bar 150, and the interlocking by the link bar 150 does not occur.

Therefore, even when the out handle cable C1 is pulled and the OS lever 140 is rotated, the linkage of the release lever 130 and the first link lever 120 by the link bar 150 does not occur, Do not. (See door open operation through out handle)

Even when the inner handle cable C3 is pulled and the operating force is transmitted through the inner lever 210 and the second link lever 220 to rotate the OS lever 140, The interlocking of the release lever 130 and the first link lever 120 does not occur, and the door can not be opened. (See door open operation via inner handle)

That is, the door is not opened despite the operation of the out handle or the inner handle, and the door is locked.

When the door lock state is released as described above, the locking lever 170 is rotated in the opposite direction to move the link bar 150 to the activated position L1. In this case, Similarly, the operation force by the outward handle or the inner handle is transmitted through the link bar 150 so that the door can be opened.

to the next, Child  The operation at the time of setting the lock state will be described.

24 is an operational state diagram of a door lock for a car according to an embodiment of the present invention when the child lock is set.

The child lock state of this operation example means a state in which the door can be opened by the outward handle disposed outside the vehicle but not opened when the inner handle inside the vehicle is operated. The child lock state can be set by a user's operation (for example, a child lock button operation) or a vehicle control section (for example, when the vehicle is traveling at a speed higher than a set speed).

Referring to FIG. 24, when the child lock lock state is set, the child lock lever 230 is rotated about the sixth rotation axis R6 by a predetermined degree. The link protrusion 224 of the second link lever 220 is fastened to the third link hole 231 of the child lock lever 230 so that the link protrusion 224 is rotated while the child lock lever 230 is rotated. .

The link protrusion 224 is moved along the second b guide hole 114b so that the second link lever 220 is moved to a predetermined position along the second link hole 223. [ That is, the second link lever 220 is moved from the activated position L3 to the inactive position L4. The inner lever 210 is disengaged from the inner lever engaging portion 221 and the second link lever 220 and the inner lever 210 are disengaged at the inactive position L4 of the second link lever 220. [ Is interlocked. That is, even when the inner lever 210 is rotated, the second link lever 220 is not affected (refer to the description of FIG. 17 and the second link lever 220).

Therefore, even when the inner handle cable C3 is pulled and the inner lever 210 is rotated, the second link lever 220 is not rotated, and thus the operating force is not transmitted to the OS lever 140 (See opening the door through the door). That is, even when a user in the vehicle operates the inner handle, the door is not opened, and the door becomes a child lock state in which the door can be opened only through the out handle on the outside of the vehicle.

When the child lock state is released, the child lock lever 230 is rotated in the opposite direction, and the link protrusion 224 and the second link lever 220 are moved to the activated position L3 again do. Accordingly, when the inner handle is operated, the second link lever 220 rotates in conjunction with the inner lever 210, and the door can be opened as the second link lever 220 rotates the OS lever 140 Door open operation via inner handle.

As described above, the door latch 100 for a vehicle according to the present embodiment includes the catch lever 190 and is coupled to the striker. Meanwhile, the inner handle or the out handle through the upper lever 160 is operated To the upper door latch (U) mounted on the other side. That is, the door latch 100 for a vehicle according to the present embodiment can combine functions of a door latch and a controller, and can integrate a controller that transmits the operating force of the inner handle or the out handle and a door latch that restrains the door have. Therefore, the vehicle door latch 100 according to the present embodiment can minimize the number of components mounted on the door and simplify the structure inside the door.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

100: vehicle door latch 110: base frame
111: first base frame 112: second base frame
113: first guide hole 114: second guide hole
114a: the 2a guide hole 114b: the 2b guide hole
120: first link lever 121: first link bar cooperating projection
122: Pole lever fastening part 130: Release lever
131: first link hole 132: upper lever contact portion
140: OS lever 141: Second link bar cooperating projection
142: Outside handle fastening hole 143: Inner lever contact part
150: Link bar 160: Upper lever
161: Release lever contact portion 170: Locking lever
180: Pole lever 181: First stopping projection
182: first buffer member 190: catch lever
191: striker locking groove 192: second locking projection
193: second buffer member 194: air damping hole
210: Inner lever 220: Second link lever
221: Inner lever fastening part 222: OS lever contact part
223: second link hole 224: link projection
230: Child lock lever 231: Third link hole
R1: first rotation axis R2: second rotation axis
R3: third rotation axis R4: fourth rotation axis
R5: fifth rotation axis R6: sixth rotation axis
C1: Out handle cable C2: Upper latch cable
C3: Inner handle cable

Claims (15)

A base frame 110 mounted on one side of the vehicle door;
A catch lever 190 provided on the base frame 110 and coupled to the striker to restrain the vehicle door in a closed state;
And is mounted on the base frame 110 so as to be rotatable about a first rotation axis R1 and connected to the out handle cable C1 and rotated according to the operation of the out handle cable C1, An OS lever 140 which is linked to the catch lever 190 to decouple the catch lever 190;
A release lever 130 mounted on the base frame 110 so as to be rotatable about a first rotation axis R1 and linked with the OS lever 140 to rotate in conjunction with the OS lever 140; And
And is rotatably mounted on the base frame 110 so as to be rotatable around the second rotation axis R2 so as to be adjacent to the release lever 130. The release lever 130 is linked with the release lever 130, An upper lever 160 is connected to an upper latch cable C2 for operating the upper door latch U to be mounted on the other side of the vehicle door and rotates while an upper lever 160 for restraining the upper door latch U is connected, ; ≪ / RTI >
A first link hole 131 is formed in the release lever 130,
The OS lever 140 is formed with a second link bar interlocking protrusion 141,
A link bar 150 which is coupled to the first link hole 131 and is in contact with the second link bar cooperating protrusion 141 and which links the OS lever 140 and the release lever 130, ) For a vehicle door latch.
A base frame 110 mounted on one side of the vehicle door;
A catch lever 190 provided on the base frame 110 and coupled to the striker to restrain the vehicle door in a closed state;
And is mounted on the base frame 110 so as to be rotatable about a first rotation axis R1 and connected to the out handle cable C1 and rotated according to the operation of the out handle cable C1, An OS lever 140 which is linked to the catch lever 190 to decouple the catch lever 190;
A release lever 130 mounted on the base frame 110 so as to be rotatable about a first rotation axis R1 and linked with the OS lever 140 to rotate in conjunction with the OS lever 140; And
And is rotatably mounted on the base frame 110 so as to be rotatable around the second rotation axis R2 so as to be adjacent to the release lever 130. The release lever 130 is linked with the release lever 130, An upper lever 160 is connected to an upper latch cable C2 for operating the upper door latch U to be mounted on the other side of the vehicle door and rotates while an upper lever 160 for restraining the upper door latch U is connected, ; ≪ / RTI >
An upper lever contact portion 132 is formed on the release lever 130,
A release lever contact portion 161 is formed in the upper lever 160,
The upper lever contact portion 132 pushes the release lever contact portion 161 by a predetermined amount so that the upper lever 160 rotates in conjunction with rotation of the release lever 130. [
A base frame 110 mounted on one side of the vehicle door;
A catch lever 190 provided on the base frame 110 and coupled to the striker to restrain the vehicle door in a closed state;
And is mounted on the base frame 110 so as to be rotatable about a first rotation axis R1 and connected to the out handle cable C1 and rotated according to the operation of the out handle cable C1, An OS lever 140 which is linked to the catch lever 190 to decouple the catch lever 190;
A release lever 130 mounted on the base frame 110 so as to be rotatable about a first rotation axis R1 and linked with the OS lever 140 to rotate in conjunction with the OS lever 140;
And is rotatably mounted on the base frame 110 so as to be rotatable around the second rotation axis R2 so as to be adjacent to the release lever 130. The release lever 130 is linked with the release lever 130, An upper lever 160 is connected to an upper latch cable C2 for operating the upper door latch U to be mounted on the other side of the vehicle door and rotates while an upper lever 160 for restraining the upper door latch U is connected, ;
And is rotatably mounted on the base frame 110. The inner handle cable C3 is connected to one side of the inner handle cable C3 and is rotated according to the operation of the inner handle cable C3. An inner lever 210 for rotating the lever 140; And
And an inner lever 210 coupled to one side of the inner lever 210. The inner lever 210 rotates in conjunction with the inner lever 210 and contacts the OS lever 140 on one side, And a second link lever (220) formed with an OS lever contact portion (222) for rotating the inner lever (210) and the OS lever (140).
4. The method according to any one of claims 1 to 3,
A pawl lever 180 engaged with the catch lever 190 to restrict rotation of the catch lever 190; And
The OS lever 140 is mounted on the base frame 110 so as to be rotatable about a first rotation axis R1 and linked with the OS lever 140 so as to rotate in conjunction with the OS lever 140, 180) for linking the OS lever (140) and the pawl lever (180) to each other.
The method of claim 4,
A first link hole 131 is formed in the release lever 130,
The first link lever 120 is formed with a first link bar cooperating protrusion 121,
A link bar that is coupled to the first link hole 131 and is capable of contacting the first link bar cooperating protrusion 121 and linking the OS lever 140 and the first link lever 120, (150). ≪ / RTI >
The method according to claim 1,
The first link hole 131 extends in the radial direction of the first rotation axis R1,
The link bar 150 is formed to be movable along the first link hole 131,
The second link bar interlocking protrusion 141 interferes with the link bar 150 and the link bar 150 interlocks with the second link bar interlocking protrusion 141. When the link bar 150 is in the activated position adjacent to the first rotation axis R1, Wherein the second link bar interlocking projection (141) is not interfered with the link bar (150) when the second link bar interlocking projection (141) is moved to the inactive position spaced apart from the first rotation axis (R1).
The method of claim 5,
The first link hole 131 extends in the radial direction of the first rotation axis R1,
The link bar 150 is formed to be movable along the first link hole 131,
The first link bar interlocking protrusion 121 is interfered with the link bar 150 and the link bar 150 is interlocked with the first link bar interlocking protrusion 121. In the case where the link bar 150 is in the activated position adjacent to the first rotation axis R1, Wherein the first link bar interlocking projection (121) is not interfered with the link bar (150) when the first link bar interlocking projection (121) is moved to the inactive position spaced apart from the first rotation axis (R1).
The method of claim 6,
And a locking lever 170 coupled to the other end of the link bar 150 to move the link bar 150 along the first link hole 131 to convert the link bar 150 into an active position or an inactive position. Door latch for vehicle.
The method of claim 7,
And a locking lever 170 coupled to the other end of the link bar 150 to move the link bar 150 along the first link hole 131 to convert the link bar 150 into an active position or an inactive position. Door latch for vehicle.
delete The method of claim 3,
The second link lever (220)
An activated position in which the inner lever 210 is coupled to the inner lever engaging portion 221 and is rotated in conjunction with the inner lever 210,
Wherein the inner lever (210) is detached from the inner lever fastening portion (221) and is movable to a deactivation position that is not interlocked with the inner lever (210).
The method of claim 3,
And a child lock lever (230) linked with the second link lever (220) and moving the second link lever (220) by a predetermined amount to switch to an active position or a deactivated position.
The method of claim 12,
The second link lever 220 is formed with a link protrusion 224 protruding from the second link lever 220 to be coupled with the child lock lever 230,
And a second guide hole (114) through which the link protrusion (224) passes is formed in the base frame (110).
14. The method of claim 13,
The second guide hole (114)
A vehicle door formed by a second guide hole 114a extending along a rotation radius of rotation of the inner lever 210 and a second guide hole 114b extending radially outward from the second guide hole 114a, Latch.
15. The method of claim 14,
The link protrusion 224 is moved along the second guide hole 114a in accordance with the rotation of the child lock lever 230 and the second link lever 220 is moved by the movement of the link protrusion 224 A vehicle door latch that is switched to a position or a disabled position.

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