KR101781531B1 - Latch system for door of vehicle - Google Patents

Abstract

The present invention relates to a latch system of door for a vehicle. More specifically, a second locking member is formed with a lock disengaging linkage portion to rotate and move a lock disengaging portion such that a first sub locking member and the lock disengaging portion are linked, or a first sub locking member and the lock disengaging portion are not linked. Then, the lock is able to simply and quickly be disengaged using a first lever through the lock disengaging portion, and simultaneously a car theft is able to effectively be prevented when a first locking member and a second locking member are both operated because the lock is able to be disengaged by both a first lever and a second lever.

Description

[0001] LATCH SYSTEM FOR DOOR LATCH SYSTEM [0002]

More particularly, the second lock member is provided with a lock releasing interlocking portion for rotating or moving the lock releasing portion so that the first sublocking member and the lock releasing portion are interlocked with each other, 1 sub-locking member and the unlocking portion are not interlocked with each other.

Normally, opening and closing of an automobile door is performed by manipulating the inside and outside of the door, and the locking and unlocking operations of the door are performed by operation of a wireless remote controller or a personal identification card (PLC: Personal Identification Card) The opening and closing and door locking and unlocking mechanisms are made in the door latch assembly.

The lever structure of a general door latch assembly has a lever that operates in a locked or unlocked position by the operation of a door key and also has a locking and unlocking movement by the operation of a safety knob installed at the upper end of the door trim in the interior of the vehicle And a lever that rotates to the lock and unlock positions by operation of the remote controller.

On the other hand, when a door that is locked in the outside of the vehicle is to be forcibly opened, theft of the vehicle frequently occurs by switching the various levers to the unlock position by using a separate force canceling mechanism.

Accordingly, development of a door latch assembly having more excellent security to prevent vehicle theft is required.

Accordingly, Korean Patent Laid-Open Publication No. 2004-0076058 discloses a door lock device that further includes a deadlock lever that prevents a pivoting lever for locking and unlocking the central locking device from operating, Is shown.

A separate deadlock lever and a deadlock lever driving device must be provided to complicate the structure of the apparatus and the door lock function is not opened through the door inner handle and the childproof lock function is not provided through the door outer handle.

Korean Patent Publication No. 2004-0076058

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle door latch system which can effectively prevent vehicle theft with a simple structure and also has a child lock function.

According to an aspect of the present invention, there is provided a vehicle door latch system for a vehicle including a housing, a latch rotatably installed in the housing, a main locking member for locking the latch, A sub-locking member including a locking member and a second sub-locking member which is moved by a second lever (not shown), and a sub-locking member which moves the sub-locking member such that the main locking member and the sub- A first locking member for moving the connecting means to separate the first and second sub-locking members from the main locking member; and a second locking member for moving the first sub- And a lock releasing portion for releasing the lock by moving the first lock member when the first sub-locking member is moved, The second lock member is provided with a lock releasing interlocking portion for rotating or moving the lock releasing portion so that the first sublocking member and the lock releasing portion are interlocked with each other or the first sublocking member and the lock releasing portion are not interlocked .

The unlocking interlocking portion may be formed with a guide groove for guiding the unlocking portion.

The lock releasing portion is rotatably installed in the housing, the second lock member is slidably installed in the housing, and the first sub-locking member is provided with a lock releasing portion press portion for pressing the lock releasing portion.

And a control unit for controlling the first and second driving units. When the deadlock is inputted, the control unit controls the first and second lock members to move in the first direction, 1 locking member and the second locking member.

The cable for moving the first locking member may be provided with a button, and the button may be disposed adjacent to the first lever.

The first lever may be connected to a cable for moving the first locking member.

The latch may be disposed in front of the housing and may further include a door lever connecting portion connecting the first and second lever and the sub locking member, and the door lever connecting portion may be disposed at a front upper portion of the housing.

The latch may be disposed in front of the housing, and a wire withdrawing portion may be formed at a rear upper portion of the housing.

And a cable for moving the first locking member, wherein the cable can be drawn to the rear upper portion of the housing.

According to an aspect of the present invention, there is provided a door latch system for a vehicle including a housing, a latch rotatably mounted on the housing, and a latch coupled to the first and second levers (not shown) A first locking member which is slidably installed in the housing and which prevents the door from being opened even if the second lever (not shown) is pulled out, and a second locking member which is slidably installed in the housing, A second locking member for preventing the door from being opened even when the door is pulled out, and a driving unit for moving the first locking member and the second locking member, wherein the driving unit includes a motor, And a drive lever for moving the first lock member and the second lock member, wherein the second lock member is provided with a drive lever for moving the drive lever relative to the second lock member To is characterized in that additional flow space is formed.

At least one of the first locking member and the second locking member is held in a moved position after being moved when a first external force is applied, and then, when the second external force is applied in the same direction as the primary external force, As shown in FIG.

The drive lever may be rotated by the motor.

The gear further includes a gear rotated through the motor, and the gear may be provided with a lever engagement portion for engaging with the drive lever.

Wherein the drive lever is formed with a first lock member contact portion which is in contact with the first lock member and a second lock member contact portion which is in contact with the second lock member and the first lock member contact portion and the second lock member contact portion And the first locking member or the second locking member may be spaced apart in a sliding direction.

According to the vehicle door latch system of the present invention as described above, the following effects can be obtained.

The second lock member is provided with a lock releasing interlocking portion for rotating or moving the lock releasing portion so that the first sublocking member and the lock releasing portion are interlocked or the first sublocking member and the lock releasing portion are not interlocked, It is possible to easily and quickly release the lock with the use of the first lever through the lock releasing portion, and at the same time, to operate both the first lock member and the second lock member through both the first lever and the second lever It is not possible to release the lock, so that it is possible to effectively prevent the vehicle from being stolen with a simple structure and to open the second lever (not shown) without opening through the first lever.

The lock releasing interlocking portion is provided with a guide groove for guiding the unlocking portion, so that the structure can be further simplified and the unlocking portion can be smoothly moved.

The cable for moving the first locking member is provided with a button, and the button is disposed close to the first lever so that the user is more aware of the user, so that the user can easily lock the door.

The first lever is connected to the cable for moving the first locking member, so that the door can be locked through the first lever, so that the outer structure of the door can be further simplified.

The latch is disposed in front of the housing, the door lever connection portion connecting the first and second lever and the sub-locking member is disposed at a front upper portion of the housing, a wire drawing portion is formed at a rear upper portion of the housing, The cable connected to the first locking member is drawn out to the rear upper portion of the housing so as to be prevented from interfering with the glass installed on the door and lifted up and down. Further, the upper and lower widths of the apparatus are reduced, so that the present invention can be applied to a door having a small door width.

The second locking member is provided with a flow space portion for allowing the driving lever to flow with respect to the second locking member, so that the two locking members can be independently operated through one driving portion, so that the number of parts is reduced and the apparatus is made compact .

At least one of the first locking member and the second locking member is held in a moved position after being moved when a first external force is applied, and then, when the second external force is applied in the same direction as the primary external force, So that the apparatus can be kept more compact.

The drive lever is rotated by the motor to simplify the structure of the device and to keep the device compact.

And a gear rotatable through the motor. The gear is provided with a lever engaging portion for engaging with the drive lever, so that when the lock is released through the key or the lever, the motor is not rotated together, have.

Wherein the drive lever is formed with a first lock member contact portion which is in contact with the first lock member and a second lock member contact portion which is in contact with the second lock member and the first lock member contact portion and the second lock member contact portion The first locking member or the second locking member is spaced apart in a sliding direction so that the apparatus can be kept compact.

1 is a perspective view of a door latch system for a vehicle according to a first embodiment of the present invention;
2 is an exploded perspective view of a door latch system for a vehicle according to a first embodiment of the present invention;
3 is a front view of the door latch system for a vehicle according to the first embodiment of the present invention, with the second housing removed;
4 is a front perspective view (top) and a rear perspective view (bottom) of a first housing of a door latch system for a vehicle according to a first embodiment of the present invention;
5 is a front perspective view (top) and a rear perspective view (bottom) of a second housing of the door latch system for a vehicle according to the first embodiment of the present invention.
6 is a front perspective view (top) and a rear perspective view (bottom) of a third housing of the door latch system for a vehicle according to the first embodiment of the present invention.
7 is a perspective view of a latch and a first return spring of a door latch system for a vehicle according to a first embodiment of the present invention;
8 is a front perspective view (top) of the main locking member and the pivot member spring of the door latch system for a vehicle according to the first embodiment of the present invention, and a rear perspective view (bottom) of the main locking member.
FIG. 9 is an exploded perspective view of the latch lever portion and the second return spring of the door latch system for a vehicle according to the first embodiment of the present invention; FIG.
10 is a front view of a door latch system for a vehicle according to a first embodiment of the present invention (the second housing and the main locking member are omitted)
11 is a front perspective view and a rear perspective view (below) of the sub-locking member and the door lever connection portion of the door latch system for a vehicle according to the first embodiment of the present invention.
12 is a rear view of the door latch system for a vehicle according to the first embodiment of the present invention with the third housing removed;
13 is a front perspective view and a rear perspective view (below) of the first locking member, the first driving portion, the key connector, and the unlocking portion of the door latch system for a vehicle according to the first embodiment of the present invention.
14 is a sectional view of a key connector and a second gear of a door latch system for a vehicle according to the first embodiment of the present invention.
15 and 16 are a schematic diagram showing a state in which a door latch system for a vehicle according to a first embodiment of the present invention is installed on a vehicle door.
17 is a front view and a rear perspective view of the second lock member of the door latch system for a vehicle according to the first embodiment of the present invention.
18 is a front perspective view (upper) and a rear perspective view (second) of the second driving unit of the door latch system for a vehicle according to the first embodiment of the present invention.
19 is a rear perspective view of the main gear of the door latch system for a vehicle according to the first embodiment of the present invention.
20 is a perspective view of main gear disassembly of the door latch system for a vehicle according to the first embodiment of the present invention.
21 is a front view (housing is omitted) showing the first step of a door closing operation of the door latch system for a vehicle according to the first embodiment of the present invention.
22 is a front view (housing is omitted) showing the second step of the door closing operation of the door latch system for a vehicle according to the first embodiment of the present invention;
23 is a front view (housing is omitted) showing a third step of the door closing operation of the door latch system for a vehicle according to the first embodiment of the present invention.
24 is a front view (housing is omitted) showing the fourth step of the door closing operation of the door latch system for a vehicle according to the first embodiment of the present invention;
25 is a partial plan view (upper) and a partial sectional view (lower) of a door unlocking state of the door latch system for a vehicle according to the first embodiment of the present invention.
26 is a partial plan view (top) showing the door locking operation through the first driving portion of the door latch system for a vehicle according to the first embodiment of the present invention and a partial plan view (middle) showing the door locking operation through the key connector Partial cross section (below).
27 is a partial perspective view showing a state in which the latch lever portion is moved rearward by the first projection guide portion in the door locking operation of the door latch system for a vehicle according to the first embodiment of the present invention;
28 is a partial plan view (top) and a partial sectional view (bottom) in a door locking state of the door latch system for a vehicle according to the first embodiment of the present invention;
29 is a partial plan view showing the door unlocking operation through the first driving part of the door latch system for a vehicle according to the first embodiment of the present invention and a partial plan view showing the door unlocking operation through the keyconnect ) And partial cross-section (below).
30 is a partial perspective view (a main locking member is omitted) showing a state in which the latch lever part is engaged with the sub locking member when the vehicle door latch system according to the first embodiment of the present invention is unlocked.
31 is a partial cross-sectional view showing the first step of the door unlocking operation using the first lever of the door latch system for a vehicle according to the first embodiment of the present invention;
32 is a partial cross-sectional view showing a second step of the door unlocking operation using the first lever of the door latch system for a vehicle according to the first embodiment of the present invention;
33 is a partial cross-sectional view showing a third step of the door unlocking operation using the first lever of the door latch system for a vehicle according to the first embodiment of the present invention;
34 is a front view showing a door locked state through a second locking member of the door latch system for a vehicle according to the first embodiment of the present invention;
Fig. 35 is a partial plan view of a door lock state through a second locking member of the door latch system for a vehicle according to the first embodiment of the present invention; Fig.
36 is a front view showing a door unlocked state through a second locking member of the door latch system for a vehicle according to the first embodiment of the present invention;
37 is a partial plan view of the door unlocking state through the second locking member of the door latch system for a vehicle according to the first embodiment of the present invention;
38 is a partial front view showing a first step of a door opening operation in a motor failure of the door latch system for a vehicle according to the first embodiment of the present invention;
39 is a partial front view showing a second step of a door opening operation in a motor failure of the door latch system for a vehicle according to the first embodiment of the present invention;
40 is a partial front view showing a third step of a door opening operation in a motor failure of the door latch system for a vehicle according to the first embodiment of the present invention;
41 is a partial front view showing a state when the door latch system for a vehicle according to the first embodiment of the present invention is normally pulled out of the door lever.
42 is a front view (second housing is omitted) of the door latch system for a vehicle according to the second embodiment of the present invention;
43 is a rear perspective view (third housing is omitted) of the door latch system for a vehicle according to the second embodiment of the present invention;
44 is a perspective view of a door latch system for a vehicle according to a third embodiment of the present invention;
45 is a front view of a door latch system for a vehicle according to a third embodiment of the present invention (second housing is omitted)
46 is a rear view of a door latch system for a vehicle according to a third embodiment of the present invention (third housing is omitted)
47 is a partial plan view of a first driving portion of a door latch system for a vehicle according to a third embodiment of the present invention;
FIG. 48 is a plan view showing a state in which a door latch system for a vehicle according to a third embodiment of the present invention is installed on a side door of a vehicle. FIG.
49 is a perspective view of a door latch system for a vehicle according to a fourth embodiment of the present invention;
FIG. 50 is an exploded perspective view of a door latch system for a vehicle according to a fourth embodiment of the present invention; FIG.
51 is a perspective view of a first locking member of a door latch system for a vehicle according to a fourth embodiment of the present invention;
FIG. 52 is a rear view of a door latch system for a vehicle according to a fourth embodiment of the present invention. (Third housing is omitted)
53 is a rear perspective view of a door latch system for a vehicle according to a fourth embodiment of the present invention (the third housing and the main gear are omitted)
FIG. 54 is a rear view showing a door unlocked state through the first and second lock members of a door latch system for a vehicle according to a fourth embodiment of the present invention (the third housing and the main gear are omitted); FIG.
55 is a rear view showing a door locked state through a first locking member and a door unlocked state through a second locking member of a door latch system for a vehicle according to a fourth embodiment of the present invention. )
FIG. 56 is a rear view showing the door lock state through the first lock member and the door lock state through the second lock member of the door latch system for a vehicle according to the fourth embodiment of the present invention. (Third housing and main gear omitted )
57 is a rear view showing a door locked state through the first and second lock members of the door latch system for a vehicle according to the fourth embodiment of the present invention (the third housing and the main gear are omitted)

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

For reference, the same components as those of the conventional art will be described with reference to the above-described prior art, and a detailed description thereof will be omitted.

1 to 41, the vehicle door latch system 5 of the present embodiment includes a housing 1100, a latch 1200 rotatably installed in the housing 1100, a latch 1200 A first sub-locking member 1400a which is moved by the first lever 10 and a second sub-locking member 1400b which is moved by a second lever (not shown) A sub-locking member 1400 including the main locking member 1300 and the sub-locking member 1400 and connecting means for allowing the sub-locking member 1400 to move together or to move only the sub-locking member 1400, A first locking member 1500 for moving the first and second sub locking members 1400a and 1400b to separate the first and second sub locking members 1400a and 1400b from the main locking member 1300, A second locking member 1700 for separating the main locking member 1300 from the first sub locking member 1400a, (1560) for moving the first locking member (1500) when the first locking member (1400a) moves, and for releasing the locking by moving the first locking member The first sub-locking member 1400a and the unlocking portion 1560 are interlocked with each other so that the first sub-locking member 1400a and the unlocking portion 1560 interlock with each other, (1560) are not interlocked with each other.

<Housing>

As shown in FIG. 1, the front means the second housing 1130 side in the housing 1100, and the rear side means the third housing 1150 side. The left and right sides described below mean left and right when viewed from the front. The left and right side members when viewed from the front of the member mean the left side and the right side, respectively.

2, the housing 1100 includes a first housing 1110, a second housing 1130 disposed in front of the first housing 1110, a second housing 1130 disposed in the rear of the first housing 1110, As shown in FIG.

A sealing member is disposed between the rear surface of the first housing 1110 and the front surface of the third housing 1150 to prevent the first and second driving parts 1650 and 1600 from being damaged by water.

As shown in FIGS. 1 and 4, a striker insertion groove 1105 is formed in an upper portion and a front portion of the housing 1100, in which a striker 1101 connected to a vehicle body is inserted. The striker insertion groove 1105 is formed so as to open upward and forward.

Therefore, the striker insertion groove 1105 is formed in the first housing 1110 and the second housing 1130.

As shown in FIG. 4, the first housing 1110 is formed in a block shape.

The first housing 1110 has a latch seating groove 1111 on which a latch 1200 to be described later is seated and a latching groove 1111 on which a main locking member 1300 and a sub locking member 1400, (1112) are formed.

The first housing 1110 may be formed of a plastic material and molded by injection molding. This can facilitate the manufacture of the device.

The front portion of the latch seating groove 1111 is formed to be open so that the components can be assembled easily. The front of the latch seating groove 1111 is covered by the second housing 1130 during assembly.

The upper portion of the latch seating groove 1111 is in communication with the striker insertion groove 1105.

Further, a spring insertion groove 1113 is formed in front of the first housing 1110.

The spring insertion groove 1113 is disposed at the rear of the latch seating groove 1111 and communicates with the latch seating groove 1111. The first return spring 1250 described below is inserted into the spring insertion groove 1113 and the other end of the first return spring 1250 is rotated together with the latch 1200 .

The first housing 1110 is formed with a sixth sensor insertion hole 1129 through which the sixth sensor 1910 described below is inserted to communicate with the latch seating groove 1111 in the forward and backward directions. The sixth sensor insertion hole 1129 is disposed under the striker insertion groove 1105.

The first housing 1110 is formed with a locking guide groove 1115 in the front side so as to communicate with the spring insertion groove 1113 and the latch seating groove 1111.

The engaging portion guide groove 1115 is formed in an arc shape.

The closure member seating groove 1112 serves to guide the main locking member 1300 and the sub locking member 1400 to slide smoothly in the left and right directions with respect to the housing 1100.

The closing member seating groove 1112 is formed in the lateral direction so as to communicate with the latch seating groove 1111.

The closure member seating groove 1112 is formed deeper rearward than the latch seating groove 1111.

The rear portion of the portion where the sub-locking member 1400 is seated in the closing member seating groove 1112 of the first housing 1110 is formed to be opened. The first protrusion guide portion 1507 and the second protrusion guide portion 1720, which will be described later, are inserted into the rear portion of the closure member mounting groove 1112.

A rod guide groove 1116 is formed in the front of the first housing 1110 in the lateral direction so as to communicate with the left side of the closure member receiving groove 1112.

The rod guide groove 1116 is disposed in the lower portion of the latch seating groove 1111 and communicates with the latch seating groove 1111.

A first sensing member insertion groove 1128 is formed in the front of the first housing 1110 so as to communicate with the closure member seating groove 1112 and the rod guide groove 1116 in the left and right direction.

The first sensing member insertion groove 1128 is disposed at the lower left of the closure member seating groove 1112.

The first sensing member insertion groove 1128 is formed so as to be open at the top and front and rear.

A first spring seating groove 1117 and a second spring seating groove 1119 are formed on the front right side of the first housing 1110. The first spring seating groove 1117 and the second spring seating groove 1119 are disposed on the right side of the closure member seating groove 1112 and communicate with the closure member seating groove 1112. The first spring 10 and the second spring receiving groove 1119 are connected to the right side of the first spring 10 and the second spring 11 through a wire which is connected to the first lever 10 or the second lever (not shown).

An unlocking portion insertion hole 1118 through which the unlocking portion 1560 is inserted is formed between the first spring receiving groove 1117 and the second spring receiving groove 1119 so as to penetrate in the front and rear direction. The unlocking portion insertion hole 1118 communicates with the closure member seating groove 1112.

A bumper member insertion groove 1123 into which the bumper member 1360 is inserted to communicate with the striker insertion groove 1105 or the latch seating groove 1111 is formed in the middle and upper portion of the first housing 1110.

The bumper member inserting groove 1123 disposed in the middle is opened at the front and the upper portion, and the upper portion is communicated with the striker insertion groove 1105.

The bumper member insertion groove 1123 disposed at the upper portion is opened at the front side and the right side portion is connected to the latch seating groove 1111.

The bumper member 1360 arranged in the middle can prevent shock or noise due to contact with the first housing 1110 when the striker is inserted into the striker insertion groove 1105. [

A plurality of support protrusions 1103 for supporting a horizontal portion or a vertical portion of the lower portion of the second housing 1130 are formed long on the front surface of the first housing 1110. The support protrusions 1103 can facilitate the coalescence of the first housing 1110 and the second housing 1130. Therefore, the assembling process is facilitated.

Further, on the front surface of the first housing 1110, a provisional protrusion insertion groove into which the protrusion protrusion of the second housing 1130 is inserted is formed. As a result, the first housing 1110 and the second housing 1130 can be easily assembled.

An unlocking portion shaft receiving groove 1125 is formed on the lower right side of the first housing 1110. The unlocking portion shaft receiving groove 1125 communicates with the unlocking portion inserting hole 1118.

An unlocking portion shaft 1561 to be described later is inserted into the unlocking portion shaft receiving groove 1125. [

The key connector mounting portion 1127 is formed at the lower left rear surface of the first housing 1110 such that the upper and lower portions and the rear portion thereof are opened.

A main gear shaft 1114 fitted to the insertion hole 1636 of the main gear 1630 described below is formed on the left side of the rear surface of the first housing 1110 so as to protrude rearward. Ribs are formed around the main gear shaft 1114, so that the apparatus can be made lighter and the strength can be reinforced.

A first locking member receiving groove on which a first locking member 1500 described below is mounted is elongated in the left-right direction below the rear surface of the first housing 1110. The first locking member seating groove is formed to communicate with the closure member seating groove 1112. The first locking member seating groove is formed to open rearward.

A second locking member receiving groove is formed on the rear surface of the first housing 1110, and the second locking member receiving groove is formed to communicate with the closing member receiving groove 1112. The left side of the second lock member seating groove communicates with the guide portion groove 1115 of the locking portion. In addition, the second locking member seating groove is disposed on the upper portion of the first locking member seating groove. The second locking member seating groove is formed to open rearward.

On the rear surface of the first housing 1110, there is formed a reduction gear seating groove on the right side on which a reduction gear described below is seated. On the rear surface of the first housing 1110, a first motor seating groove on which the front of the motor 1610 is seated is formed on the right side of the reduction gear seating groove. The first motor seating groove is formed to communicate with the reduction gear seating groove. On the right rear surface of the first housing 1110, there is formed a first PCB insertion groove in which a front portion of the PCB 1900 is inserted. The first PCB insertion groove is formed to communicate with the first sensing member insertion groove 1128. A motor seat groove is formed in the lower left rear surface of the first housing 1110. And the motor seating groove is disposed at a lower portion of the first locking member seating groove.

On the other hand, a fifth sensor seating groove 1106 on which the fifth sensor 1911 is mounted is formed on the rear surface of the first housing 1110. This fifth sensor seating groove 1106 prevents the fifth sensor 1911 from being broken at the time of assembly.

The fifth sensor seating groove 1106 is disposed outside the engaging portion guide groove 1115.

Further, a wire connecting the PCB 1900 to the sensors (the fifth sensor 1911 and the sixth sensor 1910) and a driving unit (motor 1610) to be described below is inserted and installed in the first housing 1110 . As a result, the wire length can be reduced.

The electric wire is formed so that a portion connected to the sensor and the driving unit and a portion connected to the PCB 1900 protrude to the outside of the first housing 1110. Therefore, the sensor, the driving unit or the PCB 1900 can be connected to the electric wire only by inserting the sensor and the driving unit into the seating groove of each member formed in the first housing 1110. Therefore, assembly becomes easier.

As shown in FIG. 5, the second housing 1130 is divided into two parts. The divided second housings 1130 are each formed of a plate member and formed of different materials.

The second housing 1130 includes a metal second housing 1130a formed of a metal material and a plastic second housing 1130b formed of a plastic material.

As such, the second housing 1130 may be formed of different materials for different positions, thereby maintaining the durability and reducing the weight of the apparatus.

The metal second housing 1130a is disposed on the left side of the apparatus, and the plastic second housing 1130b is disposed on the lower right side of the apparatus.

The metal second housing 1130a is provided with a latch and a pivoting member.

The metal housing 1130a is formed with a shaft insertion hole through which the latch rotation shaft 1230, which is provided with a rivet, is inserted into the second housing 1130a in the front-rear direction.

The metal second housing 1130a is recessed from the front to the rear around the shaft insertion hole to form the first protrusion 1135 and the second protrusion 1136. The first protrusion 1135 and the second protrusion 1136 protrude rearward from other portions of the rear surface of the second housing 1130a.

The first projection 1135 is in contact with the front surface of the latch 1200 and the front surface of the tiltable member 1370, which will be described below. The latch 1200 and the tiltable member 1370 do not move in the forward and backward directions while assembling and at the same time the friction between the latch 1200 and the tiltable member 1370 and the second housing 1130 can be minimized. That is, a rearward protruding portion is formed on the rear surface of the second housing 1130, thereby minimizing the friction between the second housing 1130 and the member rotating with respect to the second housing 1130. The first protrusion 1135 is formed in a human shape. The first protrusion 1135 is formed to be bent along the rotational direction of the latch 1200 and the tiltable member 1370.

The second projection 1136 is formed in an arc shape around the shaft insertion hole and is brought into contact with the front surface of the latch 1200.

In addition, the front portion of the third housing 1150, which will be described below, is formed to protrude forward, thereby minimizing the friction between the third housing 1150 and the member (main gear) rotating with respect to the third housing 1150.

The second housing 1130a of the second housing 1130 is provided with a rivet insertion hole into which a first return spring latching shaft 1251, a pivot shaft 1380, and a pivoting spring latching shaft 1391, And is formed so as to penetrate in the front-rear direction. One end of the first return spring 1250 is engaged with the first return spring latch shaft 1251.

A plurality of mounting holes are formed in the second housing 1130a of the first housing 1110 and the second housing 1130 so as to be bolted to the door 1. The installation holes are respectively arranged at the upper left and lower portions of the first housing 1110 and the second housing 1130 and the right side of the striker insertion groove 1105, respectively. Further, a mounting hole protrusion is formed on the rear surface of the second housing 1130a so as to surround the mounting hole. A screw thread is formed on the inner wall of the mounting hole projection. In addition, a protrusion insertion groove into which the mounting hole protrusion is inserted is formed on the front surface of the first housing 1110.

The vehicle door latch system 5 of the present embodiment can be easily and firmly installed due to the mounting hole and the mounting hole projection.

A cutout is formed to correspond to the striker insertion slot 1105 over the second metal housing 1130a so that the front of the striker insertion slot 1105 is opened.

A vertical support member 1138 which surrounds and supports the right side surface of the first housing 1110 from which the door lever connection portion 1800 is drawn out is formed on the right side of the plastic second housing 1130b of the second housing 1130 so as to protrude rearward do. This vertical support member 1138 reinforces the strength of the portion supporting the door lever connection portion 1800 in the housing 1100. The vertical support member 1138 is formed with a draw-out hole through which the door lever connection portion 1800 is drawn. This vertical support member 1138 prevents the first housing 1110 from being damaged even in the event of an impact.

The metal second housing 1130a and the plastic second housing 1130b are installed on the front surface of the first housing 1110 through a plurality of bolts 1133 or the like.

As shown in FIG. 6, the third housing 1150 is in the shape of a rectangular barrel having a space formed therein. The third housing 1150 is formed so that the front is open.

In the third housing 1150, a second PCB insertion groove 1154 into which the rear of the PCB 1900 is inserted is formed. The third housing 1150 is formed with a second motor seating groove 1151 on which the rear of the motor 1610 is seated.

On the inner walls of the first housing 1110 and the third housing 1150, a PCB support portion supporting both sides of the PCB 1900 is formed. In the PCB supporting portion, fitting grooves into which the PCB 1900 is inserted are formed in the forward and backward directions. The fitting groove is formed to communicate with the first and second PCB insertion grooves 1154 and 1154, respectively. Therefore, a PCB spacing space is formed between the upper and lower portions of the PCB 1900 and the upper and lower surfaces of the PCB 1900 in the first housing 1110 and the third housing 1150. Soldering or the like for wiring connection can be arranged in the spacing space, so that the PCB 1900 can be more easily installed in the housing.

On the left rear surface of the third housing 1150, a depression 1155 depressed in the lateral direction is formed.

On the rear surface of the third housing 1150, ribs are formed in a lattice shape. As a result, the durability of the apparatus can be improved.

The PCB 1900 is inserted into the first and second PCB insertion grooves 1154 and installed in the housing 1100. The PCB 1900 is horizontally disposed at a lower portion inside the housing 1100.

The PCB 1900 may be installed as described above so that the electronic product such as the PCB 1900 can be directed to the top of the vehicle when the door latch system 5 for the vehicle is installed on the door 1, It is prevented from being flooded.

A second sensor 1903, a third sensor 1905, and a fourth sensor 1907 are installed on the PCB 1900. The second sensor 1903, the third sensor 1905, and the fourth sensor 1907 are provided as sensors for sensing magnets.

The third sensor 1905 and the fourth sensor 1907 are arranged on the same line in the left-right direction. When viewed from the front, the third sensor 1905 is disposed on the left side of the fourth sensor 1907.

The second sensor 1903 senses the movement of the first sensing unit 1351 formed on the main locking member 1300 and is involved in the opening and closing of the door 1. [

The third sensor 1905 and the fourth sensor 1907 are sensors that are involved in locking and unlocking the door 1 by sensing the movement of the second sensing unit 1521 formed on the first locking member 1500.

The fifth sensor 1911 and the sixth sensor 1910 are connected to the PCB 1900. The fifth sensor 1911 and the sixth sensor 1910 may be provided as a limit switch.

The fifth sensor 1911 is disposed between the first housing 1110 and the third housing 1150. Specifically, the fifth sensor 1911 is disposed close to the engaging portion guide groove 1115. [

The fifth sensor 1911 serves to confirm whether the main gear 1630 has returned to its original position (the default position).

The sixth sensor 1910 detects whether the latch 1200 is being pushed by the striker 1101 and is being rotated. The sixth sensor 1910 may further include a sensor pressing member. The sensor pressing member is inserted into the sixth sensor insertion hole 1129 and slides in the forward and backward directions. The sixth sensor 1910 is installed on the rear surface of the first housing 1110. The sensor pushing member is pushed backward by the latch 1200 to press the sixth sensor 1910. [ The front surface of the sensor pressing member which is in contact with the rear surface of the latch 1200 is inclined so as to protrude forward as it goes downward, so that the sensor pressing member can smoothly slide rearward when the latch 1200 is rotated.

The second sensor 1903 receives the signals from the third sensor 1905, the fourth sensor 1907, the fifth sensor 1911 and the sixth sensor 1910 and receives the signals from the first and second drivers 1650, (Not shown) for controlling the display unit 1600. [

In addition, the control unit receives the signal from the key of the vehicle and controls the first and second drivers 1650 and 1600.

<Latch>

As shown in FIG. 3, the latch 1200 is installed in the first housing 1110 so as to be disposed inside the latch seating groove 1111.

The latch 1200 is rotatably installed in the first housing 1110 through a latch pivot shaft 1230 installed in the second housing 1130.

As shown in Fig. 7, the latch 1200 is formed in a plate shape.

A locking groove 1201 is formed on the outer circumferential surface of the latch 1200. [

The locking groove 1201 is formed so as to pass through the front and rear sides and to open the outer side end side.

Due to the locking groove 1201, the latch 1200 is formed with the second locking latch 1201a to which the locking portion 1371 described below is engaged.

The locking groove 1201 has a wider width from the inner side toward the outer side.

The locking groove 1201 has a first surface 1203 formed to be flat and a second surface 1205 extending from the left end of the first surface 1203 and inclined, And is surrounded by a third surface 1207 formed to surround the striker 1101 and formed in an arc shape.

The first surface 1203 forms the upper surface of the second locking engagement portion 1201a.

The latch 1200 is provided with a striker latch protrusion 1204 for latching the striker 1101 thereon.

The striker locking projection 1204 is disposed inside the locking groove 1201 to effectively prevent the striker 1101 from falling out after being inserted into the locking groove 1201. [

The striker latching protrusion 1204 is formed on a face of the face on which the first face 1203 is formed (the face where the locking portion 1371 is engaged).

The surface facing the striker 1101 when the striker 1101 is inserted into the locking groove 1201 and the surface facing the striker 1101 when the striker 1101 is removed from the locking groove 1201 are inclined, Can be smoothly inserted into and released from the locking groove 1201. [

In the latch 1200, an auxiliary locking groove 1202 is formed in a lower portion of the locking groove 1201. The auxiliary locking groove 1202 is formed in a shape similar to the locking groove 1201 and is formed shallower than the locking groove 1201. When the door is closed, the locking portion 1371 is firstly inserted into the auxiliary locking groove 1202, and is inserted into the locking groove 1201 in a second order.

The vertical movement distance of the striker 1101 from when the locking portion 1371 is inserted into the auxiliary locking groove 1202 until the locking portion 1371 is inserted into the locking groove 1201, the locking groove 1201 and the auxiliary locking groove 1202 are arranged apart from each other in the circumferential direction so that the distance d is 12 mm or more.

Therefore, the moving distance of the existing striker 1101 is longer than the moving distance of 7 mm, so that the occupant can recognize the process of automatically closing the door 1 by the motor 1610 more easily. In addition, there is an advantage that the safety margin is further increased since the margin for preventing the pinching is increased.

The latch 1200 has a first locking engagement portion 1202a to which the locking portion 1371 described below is attached.

Further, the latch 1200 is surrounded by an elastic cover 1206. The elastic cover 1206 is made of a material having elasticity such as rubber, so as to absorb impact applied to the latch 1200 and to prevent noise. The elastic cover 1206 is formed so as to surround the rest except for the portion that is caught by the locking portion 1371. That is, the elastic cover 1206 surrounds the remaining portion of the latch 1200 excluding the first locking latch 1202a and the second locking latch 1201a.

A spring-fitted portion 1213 is formed on the outer surface of the latch 1200.

The spring fitting portion 1213 may be formed in a groove shape or a hole shape. In this embodiment, the spring fitting portion 1213 is formed in a groove shape.

The latch 1200 is formed with a protrusion 1215 protruding outward on the left outer peripheral surface.

The projection 1215 is disposed in front of the engaging portion guide groove 1115.

The locking groove 1201, the auxiliary locking groove 1202, the spring-fitted portion 1213, and the projection 1215 are sequentially disposed along the rotating direction (clockwise direction) when the door of the latch 1200 closes.

The first return spring 1250 is provided so that the latch 1200 is automatically returned upon unlocking.

First and second bending portions 1252 and 1253 having a bent angle of 90 degrees or more are formed at one end and the other end of the first return spring 1250. The first bent portion 1252 is bent at a right angle toward the upper portion, and the second bent portion 1253 is bent at a right angle toward the front.

The first bent portion 1252 of the first return spring 1250 is caught by the first return spring latching shaft 1251 and the coil portion is wound around the latch pivoting shaft and the second bent portion 1253 is engaged with the spring And is fitted in the fitting portion 1213. As described above, the first return spring 1250 is formed with the first and second bent portions 1252 and 1253, thereby further improving the assemblability.

Thus, when the latch 1200 rotates, the other end of the first return spring 1250 can be rotated together with the latch 1200.

&Lt; Main locking member &

The main locking member 1300 is slidably installed in the closure member mounting groove 1112 formed in the first housing 1110. That is, the main locking member 1300 is provided on the same plane as the surface on which the latch 1200 is installed in the housing 1100.

8, the main locking member 1300 includes a body 1310, a horizontal bar 1340, a latching part 1330, and a first sensing member 1350. The main locking member 1300 is integrally formed with the body 1310, the horizontal bar 1340, the engaging portion pressing portion 1330 and the first sensing member 1350.

Further, the main locking member 1300 further includes a tiltable member 1370 that is rotated by the latch 1200 to slide the main locking member 1300. Alternatively, the locking portion engaged with the latch may be formed directly on the sliding main locking member without separately providing the pivoting member.

The body 1310 is formed with a pivot member insertion groove 1317 into which a part of the pivot member 1370 is fitted.

The pivoting member inserting groove 1317 is formed to be wider than the width of the insertion projection 1373 of the pivoting member 1370. Therefore, the tiltable member 1370 is rotatable with respect to the main locking member 1300 within a certain angle.

More specifically, when the pivoting member 1370 is pushed by the latch 1200 so that the main locking member 1300 is not moved to the right when the insertion protrusion 1373 is moved to the right, the pivoting member insertion groove 1317 The width of the insertion protrusion 1373 is larger than that of the insertion protrusion 1373. That is, the pivoting member insertion groove 1317 has a larger width in the pivoting direction of the pivoting member 1370 than the insertion protrusion 1373. However, when the main locking member 1300 moves to the right side, the tiltable member 1370 is also interlocked and rotated to the right.

The main locking member 1300 is not moved even if the pivotal movement member 1370 is pushed rightward by the latch 1200. When the door 1 is closed, the latching part 1330 is engaged with the latching part 1631 Is prevented from being pressed. Therefore, it is prevented from malfunctioning when closing the side door 1 of the vehicle through the driving portion.

The pivoting member inserting groove 1317 is formed so as to open upwardly and forwardly.

The pivot member insertion groove 1317 is closed at the front by the installation of the second housing 1130.

The left side surface of the pivoting member insertion groove 1317 is formed so as to be inclined so that the width of the pivoting member insertion groove 1317 becomes smaller toward the upper side. The insertion protrusion 1373 of the pivoting member 1370 is engaged with the left side surface of the pivoting member insertion groove 1317.

The right side surface forming the pivot member insertion groove 1317 is formed vertically.

The lower surface defining the pivot member insertion groove 1317 is formed horizontally.

The pivoting member 1370 is disposed on the front side of the first housing 1110 and is rotatably installed on the second housing 1130 by a pivot shaft 1380 disposed in the forward and backward directions. That is, the tiltable member 1370 is disposed on the same plane as the main locking member 1300 in the housing 1100.

The pivot shaft 1380 is installed through the upper portion of the pivot member 1370.

The pivot shaft 1380 is riveted and riveted to the second housing 1130.

The tiltable member 1370 is rotatable in the clockwise or counterclockwise direction around the pivot shaft 1380. [

In addition, a pivot member spring 1390 for returning the pivot member 1370 may be provided.

The pivotal member spring 1390 may be formed as a coil spring like the first return spring 1250, and first and second bent portions may be formed at both ends with a bent angle of 90 degrees or more.

One end of the pivot member spring 1390 is supported and fixed by a pivoting spring pivot shaft 1391 which is riveted to the second housing 1130 and the other end is hooked on the right side of the pivot member 1370 to be connected. The intermediate portion of the pivot member spring 1390 is fitted to the pivot shaft 1380.

The torsion spring 1390 acts to rotate the torsion member 1370 in the counterclockwise direction by applying a force to the torsion member 1370 and to return the torsion member 1370 to the original position by applying an elastic force to rotate the torsion member 1370 in the clockwise direction.

The tiltable member 1370 includes a locking portion 1371 and an insertion protrusion 1373.

The locking portion 1371 is formed by projecting the lower left portion of the turning member 1370 to the left.

The locking portion 1371 serves to lock (lock) the position of the latch 1200, so that the door 1 is maintained in the closed state.

A latch insertion groove 1372 is formed in a lower portion of the locking portion 1371 in which a part of the end of the latch 1200 when the door 1 is closed (the first surface 1203) is inserted. The latch insertion groove 1372 is formed so as to open at a lower portion thereof, and is disposed between the locking portion 1371 and the insertion protrusion 1373. The state in which the latch 1200 is locked to the tiltable member 1370 is stably maintained when the door 1 is closed due to the latch insertion groove 1372. [

On the lower right side of the locking portion 1371, an insertion protrusion 1373 protruding downward is formed.

The insertion protrusion 1373 is located in the tilt member insertion groove 1317. [ That is, at least a part (insertion projection) of the tiltable member 1370 is disposed in front of the main locking member 1300. Therefore, the tiltable member 1370 is rotated to be interlocked when the main locking member 1300 is moved in the lateral direction.

The insertion protrusion 1373 is located in the pivoting member insertion groove 1317 so that when the pivoting member 1370 slides the main locking member 1300 by the rotation of the latch 1200, (1373) does not come off in the pivoting member insertion groove (1317).

The insertion protrusion 1373 serves to slide the main locking member 1300 in the left-right direction in accordance with the rotation of the tiltable member 1370.

The pivoting member 1370 is also provided with an elastic cover 1206 like the latch 1200 described above.

The elastic cover 1206 of the tiltable member 1370 is formed so as to surround the rest except for the portion where the locking portion 1371 and the tiltable member spring 1390 are engaged. That is, the elastic cover 1206 of the tiltable member 1370 is formed so as to surround the insertion protrusion 1373. The elastic cover 1206 of the pivoting member 1370 absorbs the impact generated between the insertion protrusion 1373 and the main locking member 1300, thereby reducing the noise. Further, an elastic member insertion hole is formed in the pivoting member 1370 so as to penetrate in the front-rear direction, and the elastic cover 1206 of the pivoting member 1370 is inserted into the elastic member insertion hole, Is provided on the rotating member 1370 is firmly held.

The main locking member 1300 is installed in the first housing 1110 to lock the latch 1200 via the tiltable member 1370.

On the left side of the rear surface of the body 1310, there is formed a latch lever receiving groove 1314 in which a latch lever portion 1450 described below is seated. The engaging lever receiving groove 1314 is formed to open rearward. The engaging lever receiving grooves 1314 are formed at the upper and lower portions, respectively.

Further, a latch lever shaft insertion hole 1316 is formed in a vertical direction at the left rear side of the body 1310 so that the latch lever shaft 1470 is vertically inserted. The engaging lever shaft insertion hole 1316 is formed so as to be open at the upper part and closed at the lower part so that the engaging lever shaft 1470 is fitted in the engaging lever shaft insertion hole 1316 at the upper part during assembling. The engaging lever shaft insertion hole 1316 is formed to communicate with the engaging lever receiving groove 1314 disposed at the upper and lower portions.

A second return spring seating groove 1318 on which the second return spring 1460 is seated is formed on the rear left side of the body 1310. The second return spring seating groove 1318 is formed so as to open rearward. The second return spring seating grooves 1318 are disposed between the engaging lever seating grooves 1314 disposed at upper and lower portions.

In the middle of the left rear surface of the body 1310, a spacing projection 1312 is formed.

The spacing projection 1312 is disposed in the middle of the second return spring seating groove 1318 to separate the first and second spring portions 1460a and 1460b of the second return spring 1460. [

A sub-locking member insertion groove 1315 into which the sub-locking member 1400 is inserted is formed on the right rear surface of the body 1310. The sub-locking member insertion groove 1315 is formed in the left-right direction and is formed so that the right side is opened. The sub-locking member insertion groove 1315 can guide the sub-locking member 1400 in the lateral direction.

At the upper and lower right portions of the body 1310, sub-locking member guide grooves 1315a are formed in the left-right direction. The sub locking member guide groove 1315a is disposed in front of the sub locking member insertion groove 1315 and communicates with the sub locking member insertion groove 1315. [

A locking protrusion insertion hole 1319 for inserting the locking protrusion 1455 is formed on the right rear surface of the body 1310. The locking projection insertion hole 1319 is in communication with the sub locking member insertion groove 1315. [

Thus, the body 1310 is formed, and the sub-locking member 1400 is disposed behind the main locking member 1300. [ Therefore, the door latch system for a vehicle 5 can be compact and can be used for doors 1 of various designs.

The horizontal bar 1340 is formed long in the left direction from the lower left side of the body 1310.

The horizontal bar 1340 slides in the rod guide groove 1116 to make the sliding of the main locking member 1300 more stable.

The hook portion 1330 is integrally formed with the horizontal bar 1340 and is bent upward at the left end of the horizontal bar 1340.

The engaging portion pressing portion 1330 is formed into a curved bar shape in an arc shape.

The latching portion pressing portion 1330 is disposed outside the latch 1200 and is not interfered with when the latch 1200 is rotated.

Further, grooves are formed on the front surfaces of the engaging portion pressing portions 1330 and the horizontal bars 1340, and ribs 1331 are formed in the grooves, so that the weight can be reduced and the rigidity can be maintained.

The escape portion pressing portion 1330 is formed with a escape bending portion 1332 so that the engaging portion 1631 is not pressed by the engaging portion pressing portion 1330 when the engaging portion 1631 described below is in the basic position.

The basic position of the latching portion 1631 is a position where the projection 1215 of the latch 1200 is not interfered by the latching portion 1631 when the latch 1200 is rotated so that the door 1 is opened.

The basic position of the latching portion 1631 corresponds to the position of the fifth sensor 1911. [

The escape bending portion 1332 is formed so that the escape bending portion 1332 is projected outwardly from the other portion so as not to be pressed by the engaging portion pressing portion 1330 when the user normally pulls the door lever to open the door 1 Bending. The engaging portion pressing portion 1330 does not press the engaging portion 1631 by the engaging portion pressing portion 1330 and normally moves the main locking member 1300 in a normal state in which the engaging portion 1631 does not need to be pressed (Sliding) operating force is prevented from rising.

Further, a coupling portion 1332a covering the entire surface of the avoidance bending portion 1332 is formed in the engagement portion pressing portion 1330. [ The rigidity of the engaging portion pressing portion 1330 is further improved by this connecting portion 1332a.

A first sensing member 1350 protrudes downward from a lower end of the horizontal bar 1340.

A first sensing unit 1351 such as a magnet is provided on the lower surface of the first sensing member 1350.

The first sensing unit 1351 is sensed by a second sensor 1903 disposed at a position corresponding to the first sensing unit 1351 on the PCB 1900. The control unit receives the sensing signal and controls the motor 1610.

<Connection Means>

The connecting means includes a locking lever portion 1450 rotatably installed on one of the main locking member 1300 and the sub locking member 1400 and formed with a locking protrusion 1455, And a locking protrusion 1405 formed on the other one of the sub locking member 1400 and the sub locking member 1400 so that the locking protrusion 1455 is caught by the first lever 10 or the second lever (not shown) The main locking member 1300 and the sub-locking member 1400 are moved together or only the sub-locking member 1400 is moved. That is, the connecting means serves as a clutch for transmitting or releasing the force for pulling the first lever 10 or the second lever (not shown) to the main locking member 1300.

On the rear surface of the body 1310 of the main locking member 1300, a locking lever portion 1450 is rotatably installed. Locking lever portion 1450 may be formed in sub-locking member 1400 as described above.

9, the engaging lever portion 1450 includes a first engaging lever portion 1450a and a second engaging lever portion 1450b disposed below the first engaging lever portion 1450a.

The first engaging lever portion 1450a and the second engaging lever portion 1450b are formed in a bar shape and a locking protrusion 1455 projecting forward is formed at the right end.

The first engaging lever portion 1450a and the second engaging lever portion 1450b are formed at the left end thereof with a hole 1451 through which the engaging lever shaft 1470 passes through in the vertical direction.

The first engaging lever portion 1450a and the second engaging lever portion 1450b are rotatably installed on the body 1310 through the engaging lever shaft 1470 installed in the body 1310 in the vertical direction.

The locking member such as the first locking member 1500 and the second locking member 1700 described below is provided with a protrusion guide portion, and the protrusion is formed in the locking lever portion 1450, The engagement lever portion 1450 moves (rotates).

The protrusion includes a locking protrusion 1457 and a child protrusion 1453. The protrusion guide includes a first protrusion guide 1507 and a second protrusion guide 1720 described below.

The first engaging lever portion 1450a and the second engaging lever portion 1450b are formed with a locking protrusion 1457 on the right side. The locking protrusion 1457 is formed for interlocking between the first locking member 1500 and the first and second locking lever portions 1450a and 1450b.

The locking protrusion 1457 includes a first locking protrusion 1457a and a second locking protrusion 1457b.

The first locking protrusion 1457a formed on the first locking lever portion 1450a protrudes downward and the second locking protrusion 1457b formed on the second locking lever portion 1450b protrudes upward.

The first locking protrusion 1457a and the second locking protrusion 1457b are guided by the inclined surface 1511 formed in the first locking member 1500 to be described later and are engaged with the first locking lever portion 1450a and the second locking lever portion 1450b respectively.

A child protrusion 1453 protrudes upward from the upper right side of the first latching lever portion 1450a. The child protrusion 1453 is formed in a cylindrical shape. The child protrusion 1453 is disposed in a straight line with the locking protrusion 1457.

The child protrusion 1453 is formed for interlocking between a second locking member 1700 and a first locking lever portion 1450a to be described later.

The first and second latching lever portions 1450a and 1450b are provided with a second return spring 1460 for returning the first latching lever portion 1450a and the second latching lever portion 1450b back to their original positions .

The second return spring 1460 includes a spring connecting portion 1465 connecting the first and second spring portions 1460a and 1460b and the first and second spring portions 1460a and 1460b.

The first spring portion 1460a is disposed on the upper portion of the second spring portion 1460b.

The first and second spring portions 1460a and 1460b include a coil-shaped coil portion 1461 and a linear free end portion, respectively.

The coil portion 1461 is fitted in the engagement lever shaft 1470 and fixed in position. The coil portion 1461 is disposed on the lower portion of the first engaging lever portion 1450a and the upper portion of the second engaging lever portion 1450b, respectively.

The coil portion 1461 and the spring connecting portion 1465 are seated in the second return spring seating groove 1318. [

The free ends of the first and second spring portions 1460a and 1460b include a first bent portion 1462 bent backward, a second bent portion 1463 disposed in the left and right direction, (1464).

The first and second spring portions 1460a and 1460b are engaged with the first and second latching lever portions 1450a and 1450b and the second and third latching portions 1460a and 1460b are engaged with the first and second locking protrusions 1457a and 1457b, Respectively.

The spring connecting portion 1465 is formed by being bent in a 'C' shape.

A spring connection 1465 is connected to the opposite end of the free end at each coil portion 1461.

The spring connecting portion 1465 is seated in the second return spring seating groove 1318 and supported by the main locking member 1300. Therefore, even if the first and second spring portions 1460a and 1460b are connected to each other, elastic force can be applied to the first and second engagement lever portions 1450a and 1450b, respectively. The first and second spring portions 1460a and 1460b are integrally formed to facilitate the assembling process.

The first and second spring portions 1460a and 1460b are engaged with the first and second locking lever portions 1450a and 1450b at one end and the other end is supported by the main locking member 1300. [

The first engaging lever portion 1450a and the second engaging lever portion 1450b are pivoted to rotate so that the engaging protrusion 1455 moves backward, When the force applied to the lever portion 1450b is removed, the first engaging lever portion 1450a and the second engaging lever portion 1450b are rotated in opposite directions by the elastic restoring force of the second return spring 1460, ) Is returned to the original state (moved forward).

That is, the elastic restoring force of the second return spring 1460 acts forward.

<Sublocking member>

A sub locking member 1400 is disposed on the right rear side of the main locking member 1300.

The sub-locking member 1400 is inserted into the sub-locking member insertion groove 1315 of the main locking member 1300. Therefore, the sub-locking member 1400 is slidably installed in the main locking member 1300 in the left-right direction.

The sub-locking member 1400 is slidably installed in the closure member mounting groove 1112 formed in the first housing 1110, like the main locking member 1300.

The sub-locking member 1400 includes a first sub-locking member 1400a which is moved by the first lever 10 and a second sub-locking member 1400b which is moved by the second lever (not shown) do.

The first sub-locking member 1400a and the second sub-locking member 1400b are rounded at the left and right upper edges thereof, and can smoothly slide left and right with respect to the main locking member 1300. [

10 and 11, the door lever connection portion 1800 is directly connected to the sub-locking member 1400, and the sub-locking member 1400 is moved by the first and second levers 10. [ Alternatively, another member may be provided between the sub-locking member 1400 and the door lever connection portion 1800 so that the sub-locking member 1400 and the door lever connection portion 1800 may be indirectly connected.

The door lever connecting portion 1800 is connected to a first lever connecting portion 1800a connected to the first lever 10 disposed inside the door 1 and a second lever (not shown) And a second lever connecting portion 1800b. The first lever connecting portion 1800a and the second lever connecting portion 1800b are provided with wires. First and second engaging members 1801a and 1801b are formed at the ends of the first lever connecting portion 1800a and the second lever connecting portion 1800b.

The first sub-locking member 1400a is disposed on the upper side of the second sub-locking member 1400b.

A first lever connecting portion 1800a is connected to the first sub-locking member 1400a.

The first sublocking member 1400a includes a first engaging member receiving groove 1401a, a first locking member guide protrusion 1404a, a first spring fitting protrusion 1402a, a first engaging jaw 1405a, And an unlocking portion pressing portion 1407. [

The second sub-locking member 1400b includes a second locking member seating groove 1401b, a second locking member guide projection 1404b, a second spring fitting projection 1402b, and a second locking projection 1405b do.

The first engaging member receiving groove 1401a and the second engaging member receiving groove 1401b are opened forward. The first and second engaging members 1801a and 1801b are respectively seated in the first and second engaging member receiving grooves 1401a and 1401b.

The first engaging member receiving groove 1401a and the second engaging member receiving groove 1401b are formed to correspond to the shapes of the first and second elongated cylindrical engaging members 1801a and 1801b. Therefore, the first and second locking members 1801a and 1801b are prevented from being separated from the sub-locking member 1400 even when the first lever 10 or the second lever (not shown) is pulled out.

The first and second engaging members 1801a and 1801b located in the first engaging member receiving groove 1401a and the second engaging member receiving groove 1401b are detached forward by the body 1310 of the main locking member 1300 Do not.

The first outflow hole 1403a is formed at the right end of the first engaging member receiving groove 1401a to communicate with the first outflow hole 1403a through which the first lever connecting portion 1800a is drawn out. The first engaging member 1801a does not come out of the first take-out hole 1403a even if the first lever connecting portion 1800a is pulled to the right side.

Thus, the first sub-locking member 1400a is slid to the right as the first lever connection portion 1800a is pulled to the right. That is, when the first lever 10 is pulled toward the user, the first sub-locking member 1400a slides to the right.

A second outflow hole 1403b through which the second lever connection portion 1800b is drawn out is formed at the right end of the second engagement member seating groove 1401b and a second outflow hole 1403b is formed through the second engagement member 1801b The second engaging member 1801b does not come out to the second take-out hole 1403b even if the second lever connecting portion 1800b is pulled to the right.

Accordingly, the second sub-locking member 1400b is slid to the right as the second lever connection portion 1800b is pulled to the right. That is, when the second lever (not shown) is pulled toward the user, the second sub-locking member 1400b slides to the right.

First and second locking member guide protrusions 1404a and 1404b protrude forward or downward from the first or second sublocking members 1400a and 1400b. The first and second locking member guide protrusions 1404a and 1404b are elongated in the left-right direction. The first and second locking member guide protrusions 1404a and 1404b are formed in a plate shape horizontally arranged. The first and second locking member guide protrusions 1404a and 1404b are inserted and guided into the sub-locking member guide groove 1315a.

The first spring connecting portion 1800a is fitted with the first spring 1803a close to the first engaging member 1801a.

First and second spring fitting protrusions 1402a and 1402b are formed on the right end of the first and second sublocking members 1400a and 1400b at the upper and lower portions of the first and second outflow holes 1403a and 1403b to protrude to the right. The left and right ends of the first and second springs 1803a and 1803b are fitted to the first and second spring fitting protrusions 1402a and 1402b.

The first spring 1803a is disposed between the right end of the first sub-locking member 1400a and the first spring seating groove 1117 of the first housing 1110. The first spring 1803a slides to the left by the elastic restoring force of the first spring 1803a when the external force is removed, and returns the first sub-locking member 1400a to the original position It plays a role.

The second spring connecting portion 1800b is fitted with the second spring 1803b.

The second spring 1803b is disposed between the right end of the second sublocking member 1400b and the second spring seating groove 1119 of the first housing 1110. [ The second spring 1803b slides to the left side by the elastic restoring force of the second spring 1803b when the external force is removed, and returns the second sub-locking member 1400b to the original position It plays a role.

The sub-locking member 1400 is formed with a locking protrusion 1405 to which the locking protrusion 1455 of the locking lever portion 1450 is caught. The latching jaw 1405 includes a first latching jaw 1405a and a second latching jaw 1405b.

A first stopping protrusion 1405a is formed on the rear side of the first sublocking member 1400a and a second stopping protrusion 1405b is formed on the rear side of the second sublocking member 1400b.

The first locking jaw 1405a and the second locking jaw 1405b are formed so that the left rear of the first sub-locking member 1400a and the second sub-locking member 1400b protrude rearward from the right side.

The first and second stopping jaws 1405a and 1405b are inclined on the right side and are not easily released after the stopping protrusion 1455 is engaged.

The first engaging jaw 1405a can be engaged or disengaged by the engaging projection 1455 of the first engaging lever portion 1450a and the second engaging jaw 1405b can be engaged with the engaging projection 1455b of the second engaging lever portion 1450b 1455 may be caught or released.

When the first engaging lever portion 1450a is engaged with the first engaging jaw 1405a and the second engaging lever portion 1450b is engaged with the second engaging jaw 1405b, When the second lever (not shown) is pulled, the main locking member 1300 and the sub-locking member 1400 slide together to the right.

That is, this state is the door 1 unlocked state.

Conversely, when the first engaging lever portion 1450a is disengaged from the first engaging jaw 1405a and the second engaging lever portion 1450b is disengaged from the second engaging jaw 1405b, the first lever 10) or the second lever (not shown), the main locking member 1300 is in place, and only the sub-locking member 1400 is slid to the right.

That is, this state is the door 1 locked state.

The first sub-locking member 1400a is formed with a unlocking portion pressing portion 1407 protruding to the right on the lower right side thereof. Therefore, the unlocking portion pressing portion 1407 is slid left and right simultaneously with the first sub-locking member 1400a.

The unlocking portion pressing portion 1407 is provided as a horizontal plate, and the front surface protrudes from the front surface of the first sub-locking member 1400a.

The unlocking portion pressing portion 1407 is positioned between the first spring seating groove 1117 and the second spring seating groove 1119 of the first housing 1110.

The unlocking portion pressing portion 1407 contacts the first engaging portion 1563 of the unlocking portion 1560 to be described later to press the unlocking portion 1560. [ Therefore, the unlocking portion 1560 is rotated by the unlocking portion pressing portion 1407. [

<Lock release part>

The unlocking portion 1560 is provided at the center portion And an axial passage hole through which the unlocking portion shaft 1561 passes is vertically formed.

The unlocking portion shaft 1561 is seated in the unlocking portion shaft receiving groove 1125.

The unlocking portion 1560 is inserted into the unlocking portion insertion hole 1118. Accordingly, the unlocking portion 1560 is rotatably installed in the first housing 1110.

A first engaging portion 1563 pressed by the unlocking portion pressing portion 1407 of the first sub-locking member 1400a is formed in front of the unlocking portion 1560, 1500 are formed. Accordingly, when the first sub-locking member 1400a is moved, the unlocking portion 1560 moves the first locking member 1500, which will be described below, to release the lock. That is, normally, the unlocking portion 1560 cooperates with the first sub-locking member 1400a and the first locking member 1500 so that the first locking member 1500 can be pulled by the pulling action of the first lever 10, Thereby causing the lock to be released.

The length from the first locking portion 1563 to the unlocking portion shaft 1561 is shorter than the length from the second locking portion 1562 to the unlocking portion shaft 1561. [

As such, the first engaging portion 1563 and the second engaging portion 1562 are spaced apart in the circumferential direction. That is, the unlocking portion 1560 transmits the force by the leverage principle.

The edges of the first engaging portion 1563 and the second engaging portion 1562 are rounded.

When the user pulls the first lever 10 once in the locked state of the door 1 while the structure is simple due to the unlocking portion 1560, the door 1 is unlocked and the first lever 10 is locked The door (1) is opened when pulled out again.

<First Locking Member>

13, the first locking member 1500 moves (rotates) the locking projection 1455 of the locking lever portion 1450 of the connecting means backward so that the first and second sub- 1400a, and 1400b and the main locking member 1300 are separated from each other.

The first locking member 1500 is formed in a plate shape, and is formed long in the left and right direction.

The first locking member 1500 is slidably installed on the lower portion of the rear surface of the first housing 1110.

The first locking member 1500 is provided with a locking engagement portion 1502, a cable connection portion 1501, a second sensing member 1519, a first projection guide portion 1507, and an unlocking portion contact portion 1515 from left to right Respectively.

At the lower left end of the first locking member 1500, a lock engaging portion 1502 is formed so as to protrude downward. The locking engagement portion 1502 is formed with an ellipse having a horizontal cross-sectional shape that is long in the front-rear direction. The lock engagement portion 1502 is formed by a cylindrical projection protruding downward.

The present embodiment further includes a first driving portion 1650 for automatically sliding the first locking member 1500. [ The first driving unit 1650 drives the first locking member 1500.

The present embodiment is provided with a second driving portion 1600 for rotating the latch 1200 and moving the second locking member 1700 and a first driving portion 1650 for moving the first locking member 1500 .

The first driving unit 1650 is installed at the lower left rear surface of the first housing 1110.

The first driving portion 1650 is disposed at the lower left of the first locking member 1500.

The first driving unit 1650 includes a motor 1651, a first gear 1652 connected to the motor 1651 and a second gear 1653 linked to the first gear 1652.

The axis of the motor 1651 is arranged in the left-right direction, so that interference with other members of the door 1 can be minimized.

The motor 1651 of the first driving unit 1650 is smaller than the motor 1610 of the second driving unit 1600. Therefore, even if the motor 1651 of the first driving portion 1650 fails, the first gear 1652 and the second gear 1653 can be reversely rotated. Therefore, the user can manually move the first locking member 1500 through the key or the like when the motor 1651 fails or when power is not supplied to the vehicle, thereby improving safety.

The motor 1651 is seated and installed in the lock motor seat groove formed in the left rear lower portion of the first housing 1110. The lock motor seating groove is formed in the front-rear direction so as to open the rear side.

The motor 1651 is disposed on the right side of the first gear 1652 and the second gear 1653. Therefore, it is possible to minimize flooding of the motor 1651 even if water flows into the housing 1100.

The first gear 1652 is provided as a worm, and the second gear 1653 is provided as a worm gear.

Accordingly, the first driving unit 1650 and the first locking member 1500 are connected through the worm and the worm gear. As a result, the vehicle door latch system 5 of the present embodiment can simply keep the configuration and reduce the reduction ratio.

The first gear 1652 is arranged in the left-right direction.

The first gear 1652 is connected to the shaft of the motor 1651.

The shaft of the second gear 1653 is arranged in the vertical direction.

The second gear 1653 is formed in a disc shape, and a gear 1654 is formed on the outer circumferential surface.

The second gear 1653 is engaged with the first gear 1652.

The second gear 1653 is installed in the key connector mounting portion 1127.

A through hole 1655 through which the key connector 1550 passes is formed in the center of the second gear 1653 in a vertical direction.

On the upper surface of the second gear 1653, there is formed a rotation engaging portion 1656 to which the lock engaging portion 1502 is engaged. The rotation latching portion 1656 has a horizontal cross-sectional shape and is formed so as to protrude upward as a cylindrical shape. After the motor 1651 has been operated for a predetermined time (after the rotation of the rotation stopper portion is rotated by a predetermined angle), the rotation stopper 1656 locks or unlocks the rotation stopper 1656 through the one rotation stopper 1656, And comes into contact with the engaging portion 1502. Therefore, the rotation latching portion 1656 can push the lock engagement portion 1502 with an appropriate torque. Otherwise, when the rotation latching portion 1656 pushes the locking latch portion 1502 immediately after the motor 1651 is operated, an appropriate torque is not outputted and the locking or unlocking is not smooth.

Accordingly, as the motor 1651 of the first driving unit 1650 is operated, the first locking member 1500 slides to the left or right.

The vehicle door latch system 5 of the present embodiment further includes a key connector 1550 rotatably installed in the first housing 1110 of the housing 1100 and having a key insertion slot for receiving a key therein.

The key connector 1550 includes a head 1551 having the key insertion groove formed in a cross shape and a wing portion 1553 having a key connection cutout 1555 in which a portion is cut from a disk having a diameter larger than the diameter of the head 1551 ).

A head 1551 is formed at the bottom of the key connector 1550.

The head 1551 is formed into a cylindrical shape.

The head 1551 is inserted into the connecting through hole 1655 and is rotatably installed in the second gear 1653. A waterproof ring 1558 is fitted on the lower outer circumferential surface of the head 1551 so that the assembled state of the key connector 1550 and the second gear 1653 is maintained. The waterproof ring 1558 is disposed below the second gear 1653 and is seated in the key connector mounting portion 1127. A fitting groove for fitting a sealing member disposed between the first housing 1110 and the third housing 1150 is formed at the rear of the waterproof ring 1558. This waterproof ring 1558 prevents water from flowing into the motor 1651 more effectively.

The wing portion 1553 is formed on the top of the key connector 1550 and integrally formed with the head 1551.

The outer diameter of the wing portion 1553 is larger than the diameter of the connecting through hole 1655 and smaller than the outer diameter of the second gear 1653.

The wing portion 1553 is disposed on the upper portion of the rotation latching portion 1656.

The surface cut at the wing portion 1553 is formed into an arc shape.

The central angle of the key connector cutout 1555 is smaller than 180 degrees.

The key connector cutout 1555 has a depth deeper than the vertical height of the wing portion 1553.

The locking hook 1502 is located in the key connector cutout 1555.

Accordingly, the wing portion 1553 is formed with two key catches spaced apart in the circumferential direction, which are engaged with the locking catches 1502 on both sides by the key connection cutout portion 1555.

The key catching portion includes a first key catching portion 1554 and a second key catching portion 1552.

Due to the key catch, the first locking member 1500 is slid to the left or right as the key connector 1550 is rotated.

If the head 1551 of the key connector 1550 is rotated in conjunction with the key module mounted on the vehicle so that the wing portion 1553 is rotated to not operate the first driving portion 1650, Can be slid to the left and right.

That is, the rotational movement of the key connector 1550 causes the first locking member 1500 to linearly move

Therefore, by using the key connector 1550, the door 1 can be manually locked or unlocked manually.

The key connector 1550 is disposed inside the second gear 1653 so that the door latch system 5 for a vehicle can be made compact and at the same time when the key connector 1550 or the motor 1651 fails, The first locking member 1500 can be smoothly moved when the parts are frozen.

An inclined surface 1556 is formed below the first and second keyed portions 1554 and 1552.

The inclined surface 1556 is formed such that the thickness of the first and second key catches 1554 and 1552 becomes thinner toward the end. As described above, the first and second key catches 1554 and 1552 are formed to prevent the key catch 1550 from being caught by other members when the key contact 1550 rotates, thereby further improving the driving performance.

The cable connection portion 1501 is disposed close to the left end of the first lock member 1500. [ The cable connection portion 1501 is formed on the rear surface of the first lock member 1500. One end of the cable 1810 is provided in the cable connection part 1501. The cable 1810 is drawn to the left side of the first housing 1110. This cable 1810 moves the first locking member 1500 to the right, thereby allowing the first locking member 1500 to be operated. As described above, the cable 1810 and the first locking member 1500 may be directly connected to each other. Alternatively, however, the cable 1810 and the first locking member 1500 may be indirectly connected to each other by providing another member between the cable 1810 and the first locking member 1500.

The cable connecting portion 1501 is formed with a first engaging member receiving groove 1401a on which the first engaging member 1801a of the cable 1810 is seated. Therefore, it becomes easier to assemble the cable 1810 to the first locking member 1500. [

The first latching member of the cable 1810 is also formed into a vertically long cylindrical shape.

The other end of the cable 1810 may be connected to the first lever 10 inside the door 1. The cable 1810 is connected to the first lever 10 so that when the user pushes the first lever 10 toward the opposite side of the user, the cable 1810 is pushed. Therefore, when the user depresses the first lever 10, the cable 1810 is pushed, whereby the first locking member 1500 is moved to the right (locking direction) and the door 1 is locked.

The connection structure between the cable 1810 and the first lever 10 is shown in Korean Patent No. 10-1091658 and No. 10-1144106, and therefore, a detailed description thereof will be omitted.

In this way, the door 1 can be locked through the first lever 10, thereby improving usability.

As described above, the button 20 may be provided at the other end of the cable 1810. When the button 20 is pressed, the cable 1810 is pushed, and the first locking member 1500 is moved to the right (locking direction), so that the door 1 is locked.

The button 20 is disposed at the upper portion of the first lever 10 so that the user can more easily recognize the button 20. [ In detail, the button 20 is disposed between the window of the door 1 and the first lever 10.

The first locking member 1500 is formed with a horizontal guide protruding rearward in a lower right portion of the lock receiving portion 1502. The horizontal guide is formed in a plate shape and disposed on the upper portion of the motor 1651.

The first locking member 1500 is formed with a second sensing member 1519 protruding downward on the lower right side of the horizontal guide. More specifically, the second sensing member 1519 is formed so that the lower portion thereof is bent backward.

The second sensing member 1519 is provided with a second sensing unit 1521 such as a magnet on the lower surface of the backward bent portion.

The second sensing unit 1521 is sensed by the third sensor 1905 and the fourth sensor 1907 provided at positions corresponding to the second sensing unit 1521 on the PCB 1900. The signals sensed by the third sensor 1905 and the fourth sensor 1907 are transmitted to the notification device of the vehicle so that the driver can know the locked and unlocked states of the door 1. [

The first locking member 1500 has a first projection guide 1507 formed on the right side of the second sensing member 1519.

The first projection guide portion 1507 is formed to protrude forward (toward the engaging lever portion 1450) on the right front surface of the first lock member 1500. [

The first projection guide 1507 is formed in a strip shape, and is formed by protruding forward, then bent to the right, and then bent forward. Therefore, an insertion space 1509 through which the locking protrusion 1457 is inserted is formed between the first projection guide 1507 and the front surface of the first locking member 1500. The insertion space 1509 is formed so that the upper and lower portions and the right portion are opened.

An inclined surface 1511 is formed on the inner surface of the first projection guide 1507 (the surface that contacts the locking protrusion 1457) so that the gap between the front and rear of the insertion space 1509 becomes narrower toward the left. As a result, the first projection guide 1507 can guide the locking protrusion 1457 smoothly backward.

The upper portion of the first projection guide 1507 guides the first locking protrusion 1457a of the first locking lever portion 1450a and the lower portion of the first projection guide 1507 is engaged with the second locking lever portion 1450b. Thereby guiding the second locking protrusion 1457b.

As the first projection guide 1507 guides the locking protrusion 1457 forward or backward, the locking lever portion 1450 is rotated. The main locking member 1300 and the sub locking member 1400 are slid together (door unlocking) when the engaging lever portion 1450 is caught by the engaging jaw 1405 by the sliding of the first locking member 1500, Only the sub-locking member 1400 is slid (door-locked) when the locking lever portion 1450 is detached from the locking protrusion 1405 by the sliding of the locking member 1500. [

When the first locking protrusion 1457a and the second locking protrusion 1457b are disposed in the insertion space 1509 by the first protrusion guide portion 1507, the first locking lever portion 1450a and the second locking protrusion 1457b The second engaging lever portion 1450b is separated from the first engaging jaw 1405a of the first sub-locking member 1400a and the second engaging jaw 1405b of the second sub-locking member 1400b, ) Is in the locked state.

When the first locking protrusion 1457a and the second locking protrusion 1457b separate from the insertion space 1509, the first engaging lever portion 1450a and the second engaging lever portion 1450b are engaged with the first sub- The door 1 is in the unlocked state in a state in which the first engaging jaw 1405a of the first sub locking member 1400a and the second engaging jaw 1405b of the second sublocking member 1400b are engaged.

The first projection guide 1507 rotates the first engaging lever portion 1450a and the second engaging lever portion 1450b in accordance with the left and right sliding of the first locking member 1500, Or to make the door 1 unlocked.

A stopper projection 1107 is formed on one of the first locking member 1500 and the first housing 1110 of the housing 1100 and a stopper slot 1571 through which the stopper projection 1107 is inserted is formed in the other of the first locking member 1500 and the first housing 1110 of the housing 1100, .

In this embodiment, the stopper protrusion 1107 is formed to protrude rearward from the rear surface of the first housing 1110, and the stopper slot 1571 is formed on the right side of the first lock member 1500.

A stopper slot 1571 is formed in the right lower portion of the first lock member 1500 in the left-right direction. The stopper slot 1571 is formed so as to pass through in the front-rear direction.

The upper and lower widths of the stopper long hole 1571 are formed to be larger than the vertical width of the center portion. That is, a constriction 1576 is formed in the center of the stopper slot 1571.

Due to the stopper slot 1571 and the stopper protrusion 1107, the first locking member 1500 is stably positioned at the locked position or the unlocked position unless a special force is applied. Therefore, the first locking member 1500 is prevented from malfunctioning due to an external impact.

The first locking member 1500 is formed with a slit 1578 formed in the upper and lower portions of the constricted portion 1576 of the stopper slot 1571 so as to penetrate in the forward and backward directions. This slit 1578 allows the first locking member 1500 to be elastically deformed smoothly when the stopper projection 1107 passes through the constricted portion 1576 of the stopper slot 1571.

The first locking member 1500 is formed in a groove shape with an unlocking portion contact portion 1515 in which the second locking portion 1562 is in contact with the upper end of the right end. The unlocking portion contact portion 1515 is formed so as to open upward and backward.

The first locking member 1500 is formed with a guide plate disposed on the lower portion of the unlocking portion 1560 to protrude rightward.

<Second Locking Member>

The second locking member 1700 moves (rotates) the connecting means to separate the first sub-locking member 1400a and the main locking member 1300. [

The second locking member 1700 is movably installed in the housing 1100.

The second locking member 1700 is slidably mounted on the rear surface of the first housing 1110 in the left-right direction.

The second lock piece 1700 is seated in the second lock piece seat.

The second locking member 1700 is disposed at a lower portion of the second driving portion 1600, which will be described later, and is disposed behind the first locking member 1500. [

The second locking member 1700 is formed like a plate like the first locking member 1500. [

The second locking member 1700 is formed so that a driving unit locking projection 1710, which is engaged with the locking portion 1631 on the left side, protrudes to the left.

The second locking member 1700 has a third sensing member 1740 formed behind the middle portion thereof. The third sensing member 1740 is disposed on the right side of the driving portion locking projection 1710.

The third sensing member 1740 is provided in a bar shape vertically arranged in the vertical direction, and a third sensing unit 1741 is provided at the lower end. The third sensing unit 1741 may be provided as a magnet.

The PCB 1900 is provided with a seventh sensor 1904 for sensing the third sensing unit 1741 and an eighth sensor 1902 spaced apart from each other in the left-right direction. The seventh sensor 1904 and the eighth sensor 1902 detect whether the first lever 10 is in the unlocked state or the first lever 10 is in the unlocked state. These signals are transmitted to the vehicle ECU and inform the driver whether the first lever 10 is locked (child-locked) by lighting or the like.

The second locking member 1700 has a second projection guide 1720 formed on the right front surface of the third sensing member 1740.

The second projection guide portion 1720 is formed to protrude forward (toward the first engagement lever portion 1450a).

The second projection guide 1720 is formed in a strip shape and is formed to be bent to the right after being projected forward. Therefore, an insertion space for inserting the child protrusion 1453 is formed between the second projection guide 1720 and the front surface of the second lock member 1700. The insertion space is formed such that the upper portion is closed, and the lower portion and the right portion are opened.

The second protrusion guide portion 1720 has a horizontal cross-sectional shape that is the same as or similar to the first protrusion guide portion 1507, and a detailed description thereof will be omitted.

An inclined surface (not shown) is formed on the inner surface of the second projection guide portion 1720 (the surface that contacts the child protrusion 1453), thereby simplifying the structure and improving durability.

The first locking lever portion 1450a of the locking lever portion 1450 is moved (pivoted) as the second projection guide portion 1720 guides the child protrusion 1453.

The door latch system 5 for a vehicle according to the present embodiment includes a lock member spring 1760 that applies an elastic force to the second lock member 1700 in a direction opposite to the external force when the second lock member 1700 is moved by an external force, A locking guide member 1790 rotatably installed on one of the housing 1100 and the second locking member 1700 and a locking guide member 1790 formed on the other of the locking guide member 1790 to guide the locking guide member 1790, And a cam portion 1780 formed with a cam surface 1786 formed thereon.

The external force may be formed by the main gear 1630 of the second driving unit 1600 described below so that the door 1 can be automatically closed through the one second driving unit 1600 and the first lever 10) Can be locked.

The second lock member 1700 is slid to the right (moved) by the main gear 1630.

The lock member spring 1760 is provided as a coil spring and horizontally arranged in the left-right direction.

The lock member spring 1760 is disposed between the cam cover 1730 fixed to the housing 1100 and the second lock member 1700.

On the right rear surface of the second lock member 1700, a first spring fitting portion is formed to protrude rearward. In the first spring fitting portion, a hole through which the left side of the lock member spring 1760 is inserted is formed to pass through in the left-right direction.

On the inside of the cam cover 1730, there is formed a second spring seating groove 1119 in which the right side of the lock member spring 1760 is seated in the left-right direction. The second spring seating grooves 1119 are formed so that the front and left sides are opened. The first spring receiving groove 1119 also seats the first spring receiving groove 1119, and the second spring receiving groove 1119 also serves to guide the first spring receiving portion.

Thus, the right end of the lock member spring 1760 is supported by the cam cover 1730, i.e., the first housing 1110, and the left end is supported by the second lock member 1700. [

The locking guide member 1790 is rotatably installed on the second lock member 1700 and the cam portion 1780 is installed on the rear surface of the first housing 1110 of the housing 1100 And is integrally formed on the inner side of the inner side of the cam cover 1730 as shown in Fig. As described above, the locking guide member may be formed in the housing, and the cam portion may be formed in the second locking member 1700. [

The locking guide member 1790 is formed in a bar shape and is rotatably installed on the right front side of the second lock member 1700.

A guide member flow groove 1751 is formed on the right front side of the second lock member 1700 so that the locking guide member 1790 can be seated and flowed. The guide member flow grooves 1751 are formed to open frontward.

The locking guide member 1790 is formed with a cam guide portion 1793 guided by the cam portion 1780 and a spring pressing portion 1794 which receives the elastic force of the lock member spring 1760.

The cam guide portion 1793 is formed in a cylindrical shape and is formed to protrude forward at the right end of the locking guide member 1790. When the locking guide member 1790 is installed on the second lock member 1700, the cam guide portion 1793 protrudes forward from the other side of the adjacent second lock member 1700.

The portion of the locking guide member 1790 close to the cam guide portion 1793 is tapered so as to gradually narrow the vertical width toward the cam guide portion 1793.

A hinge is formed on the left rear side of the locking guide member 1790 so as to protrude rearward.

The second locking member 1700 is formed with a hinge hole through which the hinge of the locking guide member 1790 penetrates in the front-rear direction. The hinge hole is curved on the right side and flat on the left side to form a half-moon shape. The hinge hole is formed to be larger than the cross-sectional area of the hinge of the locking guide member 1790. Therefore, even if the hinge hole is formed in a half-moon shape, the locking guide member 1790 can be smoothly rotated with respect to the second locking member 1700.

As a result, the locking guide member 1790 is rotatably installed on the second lock member 1700. The front of the hinge hole communicates with the guide member flow groove 1751. And a rear portion of the hinge hole communicates with a hole formed in the first spring fitting portion.

The spring pressing portion 1794 is integrally formed at the rear end of the hinge of the locking guide member 1790. Therefore, the spring pressing portion 1794 is disposed on the left rear side of the locking guide member 1790. [ This reduces the number of parts of the locking guide member 1790 and simplifies the structure.

The spring pressing portion 1794 is formed in a semicircular shape and the spring pressing portion 1794 is formed with a first flat portion 1794a on the surface opposite to the surface receiving the elastic force of the locking member spring 1760 . Corner portions at which the first flat portion 1794a and the bent portion meet at the spring pressing portion 1794 are rounded.

The second locking member 1700 is formed with a second flat portion 1752 facing the first flat portion 1794a.

The spring pressing portion 1794 of the locking guide member 1790 is disposed between the second flat portion 1752 of the second lock member 1700 and the left end of the lock member spring 1760.

The left end of the lock member spring 1760 is supported by the spring pressing portion 1794 and the second flat portion 1752 of the locking guide member 1790. Therefore, the elastic force of the lock member spring 1760 is transmitted to the locking guide member 1790 as well as the second lock member 1700. [

The horizontal center of the cam guide portion 1793 and the horizontal center of the spring pressing portion 1794 are spaced apart from each other in the vertical direction. In this embodiment, the center of the cam guide portion 1793 is disposed above the center of the spring pressing portion 1794.

The first flat portion 1794a and the second flat portion 1752 are abutted by the lock member spring 1760 so that the cam guide portion 1793 of the locking guide member 1790 faces upward . Therefore, the second locking member 1700 can smoothly be returned.

The cam cover 1730 is formed with a sliding groove 1731 in which the second locking member 1700 and the locking guide member 1790 slide in the left-right direction. The sliding groove 1731 is formed so that the left side is opened and the right side is closed. The sliding groove 1731 is communicated with the second spring seating groove 1119. Therefore, the right side of the second lock piece 1700 is inserted into the cam cover 1730. [

This allows the cam cover 1730 to enclose the locking member spring 1760, the locking guide member 1790 and the second locking member 1700 so that the parts can be protected and modularized, do.

Assembly hooks are formed on the upper right and lower sides of the second locking member 1700, respectively. Further, upper and lower portions of the cam cover 1730 are respectively provided with an assembly hook fastening hole into which the assembly hook is inserted. The assembled hook fastening hole is formed long in the left and right direction so that the assembled state of the second lock member 1700 and the cam cover 1730 is maintained while the second lock member 1700 is fixed to the cam cover 1730 in the left- As shown in Fig.

Such an assembly hook and the assembly hook fastener can facilitate modularization.

A cam cover engaging protrusion 1732 which is fitted in the cam cover engaging groove formed on the rear surface of the first housing 1110 is formed on the front surface of the cam cover 1730 so as to protrude forward.

The cam cover engaging projection 1732 is disposed on the left side of the cam portion 1780.

The cam cover engaging projection 1732 includes a vertical portion formed in the vertical direction and a horizontal portion connected in the middle portion of the vertical portion and formed in the horizontal direction. Specifically, the cam cover engaging projection 1732 is formed in an overall "├" shape. With this cam cover engaging projection 1732, the engaging force of the cam cover 1730 is further increased, and the cam cover 1730 can be assembled more smoothly.

The cam portion 1780 is formed in a groove shape. The cam portion 1780 is formed to communicate with the sliding groove 1731.

The cam portion 1780 includes a first inclined face 1781 that is lowered in height toward the right side, a second inclined face 1782 that is formed continuously at the lower end of the first inclined face 1781 and has a height higher toward the right side, A third inclined surface 1783 formed continuously with the second inclined surface 1782 and having a height higher toward the left side and a third inclined surface 1783 formed continuously with the third inclined surface 1783 and curved in a circular arc concave to the left, A fourth inclined surface formed continuously with the first bent portion and having a height higher toward the right side and a fourth inclined surface formed continuously with the fourth inclined surface and curved upward to be elevated toward the left, The second bent portion 1787 is formed. The second bent portion 1787 is connected to the upper portion of the first inclined surface 1781. Thus, the cam portion 1780 is formed so that the cam guide portion 1793 can not be easily detached from the engaging groove 1786 when an external force is not applied.

The first inclined surface 1781, the second inclined surface 1782, the third inclined surface 1783, the first bent portion, the fourth inclined surface, and the second bent portion 1787 are formed to protrude rearward from the inner wall of the cam cover 1730 And is formed by a cam protrusion. Thus, the cam portion 1780 is disposed in front of the locking guide member 1790 and the second locking member 1700. [

The first inclined surface 1781, the second inclined surface 1782 and the third inclined surface 1783 form a lower path, and the fourth inclined surface and the second bent portion 1787 form an upper path.

The cam portion 1780 is formed such that the front portion of the portion formed by the third inclined surface 1783, the first bent portion, the fourth inclined surface, and the second bent portion 1787 is opened. As a result, the cam cover 1730 can be easily manufactured by injection molding.

The second locking member 1700 is formed with an unlocking interlocking portion 1770 for rotating or moving the unlocking portion 1560. In this embodiment, the unlocking interlocking portion 1770 rotates the unlocking portion 1560 about the unlocking portion shaft 1561.

The second locking member 1700 allows the first sub-locking member 1400a and the unlocking portion 1560 to interlock with each other or prevents the first sub-locking member 1400a and the unlocking portion 1560 from interlocking.

The unlocking interlocking portion 1770 is formed so as to protrude to the right on the lower right side of the second lock member 1700. [

The unlocking interlocking portion 1770 is disposed at the lower portion of the locking guide member 1790.

The unlocking interlocking portion 1770 is disposed downward from the portion to be inserted into the cam cover 1730.

The unlocking interlocking portion 1770 is disposed on the upper portion of the unlocking portion contact portion 1515 of the first lock member 1500. [ Therefore, the upper portion of the second latching portion 1562 of the unlocking portion 1560 is brought into contact with the unlocking interlocking portion 1770 at a normal time (when the first lever 10 is not locked) (Not shown).

The unlocking interlocking portion 1770 is formed in a plate shape arranged horizontally.

A guide groove 1771 for guiding the unlocking portion 1560 is formed in the lower portion of the unlocking interlocking portion 1770.

The guide groove 1771 is formed so as to be opened frontward and downward.

The guide groove 1771 is formed by a curved guide surface 1773 formed to be bent and a straight guide surface 1774 formed horizontally and horizontally in the left-right direction.

The straight guide surface 1774 is brought into contact with the unlocking portion shaft 1561 so that the unlocking portion 1560 is arranged in the left and right direction. In this state, the unlocking portion 1560 is stably caught in the linear guide surface 1774 and is not rotated but is arranged in the left-right direction stably.

When the unlocking portion 1560 is arranged in the left-right direction, the first engaging portion 1563 is disposed behind the unlocking portion pressing portion 1407. Even if the first sublocking member 1400a is slid to the right The first engaging portion 1563 is not caught by the unlocking portion pressing portion 1407. [ That is, the interlocked state is established.

The bending guide surface 1773 is disposed on the right side of the straight guide surface 1774.

The right end of the bending guide surface 1773 is disposed forward of the straight guide surface 1774.

The second engaging portion 1562 is brought into contact with the bending guide surface 1773. [ The bending guide surface 1773 serves to restore the unlocked portion 1560 to be interlocked. That is, the bending guide surface 1773 rotates the unlocking portion 1560 so that the first engaging portion 1563 can be brought into contact with the unlocking portion pressing portion 1407.

Further, when the unlocking portion 1560 is in the interlocking state, the curved guide surface 1773 surrounds the second engaging portion 1562 and serves as a cover to prevent the unlocking portion 1560 from being released backward.

On the upper surface of the unlocking interlocking portion 1770, fine protrusions are formed long in the left-right direction. This fine protrusion reduces the friction between the second lock piece 1700 and the first housing 1110, so that the second lock piece 1700 can slide more smoothly.

&Lt; Second driving part >

The present embodiment further includes a second driving portion 1600 for rotating the latch 1200 or sliding the second locking member 1700. [ That is, the second driving unit 1600 drives the second locking member 1700.

18, the second driving portion 1600 includes a motor 1610, a reduction gear 1620 rotated by the motor 1610, a main gear 1630 rotated by engagement with the reduction gear 1620, ).

The second driving unit 1600 is installed on the rear surface of the first housing 1110 and on the front surface of the third housing 1150.

The second driving part 1600 is disposed on the upper part of the housing 1100. Therefore, when installing the door latch system 5 for a vehicle on the door 1, the second driving portion 1600 is disposed above the striker insertion slot 1105. Therefore, even if water enters the striker insertion groove 1105, the motor 1610 is prevented from being flooded.

The motor 1610 is electrically connected to the PCB 1900.

The motor 1610 can be arranged so that the angle between the axis 1611 of the motor 1610 and the front face of the housing 1100 is zero degree (horizontal) or a desired angle (slope) depending on the design of the vehicle.

The axis 1611 of the motor 1610 is arranged in the left-right direction.

A first worm 1613 is provided on the shaft 1611 of the motor 1610.

The reduction gear 1620 includes a first worm gear 1621 engaged with the first worm 1613 and a second worm 1622 installed in the first worm gear 1621.

The reduction gear 1620 is arranged in the vertical direction. The first worm gear 1621 is disposed on the second worm 1622, and is integrally formed. The maximum outer diameters of the first worm 1621 and the second worm 1622 are the same or similar.

Accordingly, when the motor 1610 is operated, the first worm 1613 rotates. As the first worm 1613 rotates, the first worm gear 1621 rotates. When the first worm gear 1621 rotates, The second worm 1622 formed integrally with the first worm gear 1621 is also rotated and the main gear 1630 is rotated as the second worm 1622 rotates.

The shaft of the reduction gear 1620 is rotatably installed on the reduction gear shaft support plate 1623. [ That is, the reduction gear gear support plate 1623 is formed with a shaft hole in which the shaft of the reduction gear 1620 is fitted, in the vertical direction.

The reduction gear support plate 1623 is disposed at the upper and lower portions of the reduction gear 1620, respectively.

A support plate insertion groove into which the reduction gear shaft support plate 1623 is inserted is formed on the rear surface of the first housing 1110 and on the front surface of the third housing 1150 so that the reduction gear 1620 can be easily installed in the housing 1100 .

The reduction gear support plate 1623 is formed in a rectangular shape, and the shaft hole is arranged to be offset to the rear of the reduction gear shaft support plate 1623. Thus, the reduction gear shaft support plate 1623 is formed so that the reduction gear shaft support plate 1623 can be stably inserted into the support plate insertion groove. As a result, the reduction gear support plate 1623 can be easily installed in the housing 1100, and the tightening force of the reduction gear shaft support plate 1623 is further improved.

When such a reduction gear 1620 is provided, the speed of the motor 1610 is greatly reduced and smoothly driven when the door 1 is closed through the motor 1610, and the driving torque is secured. In addition, when the door 1 is closed, the speed of the door 1 is reduced, so that the door 1 can be opened in an emergency when a safety accident occurs in which the body or clothes are caught in the door 1.

The main gear 1630 is provided as a second worm gear, and receives the driving force of the motor 1610 through the reduction gear 1620.

A center hole of the main gear 1630 is formed with an insertion hole 1636 through which the main gear shaft 1114 is inserted and the main gear 1630 is rotated around the main gear shaft 1114 arranged in the forward and backward directions.

19 and 20, the main gear 1630 includes a gear portion 1632 having a gear 1638 formed on a part of the outer circumferential surface thereof, and a gear portion 1632 having no gear 1638 formed on the other portion of the outer circumferential surface thereof. A fisher portion 1643 is formed.

The gear portion 1632 is formed only on the right portion of the main gear 1630.

The non-gear portion 1643 is formed in the remaining portion of the main gear 1630, not the gear portion 1632. [ The non-gear portion 1643 is formed to be flat or curved.

That is, the main gear 1630 is not formed all around the gear teeth 1638 but formed only in a part thereof. Therefore, it is possible to reduce the thickness of the main gear 1630 while maintaining the durability thereof.

The gear portion 1632 is formed thicker in the longitudinal direction than the non-gear portion 1643. Therefore, the durability of the gear portion 1632 can be improved.

On the other hand, when the door latch system 5 is installed in the door 1, the rear middle portion of the door latch system 5 is disposed to face the door 1 when the door 1 is lowered. Door (1) The window does not go down vertically when it comes down, but it goes down sloping down. As a result, when the door of the door 1 comes down, the rear left middle portion of the door latch system for a vehicle 5 comes close to the door 1 window. Accordingly, when the rear left middle portion of the door latch system 5 for a vehicle protrudes rearward, it is caught by the door of the door 1 that descends. However, in the vehicle door latch system 5 of the present embodiment, the gear teeth 1638 of the main gear 1630 disposed on the rear left side are formed only on a part of the right outer peripheral surface, and the gear teeth 1638 are thickened, The thickness of the left middle portion of the gear 1630 can be reduced. Therefore, when the vehicle door latch system 5 is mounted on the door 1, interference between the door 1 window and the vehicle door latch system 5 is prevented.

The main gear 1630 is provided with a latching portion 1631 for rotating the latch 1200. The latching portion 1631 is formed in a bar shape and protrudes forward.

The engaging portion 1631 includes a fixed portion 1649 fixed to the main gear 1630 and a sliding portion provided in the fixed portion 1649 so as to be slidable in the forward and backward directions.

The fixing portion 1649 is formed to protrude forward from the front surface of the main gear 1630.

The fixing portion 1649 is formed so that the hollow is open and the front is open. On the left and right sides of the fixing portion 1649, a sliding guide long hole 1649a is formed. The guide elongated hole 1649a is elongated in the longitudinal direction. The guide elongated hole 1649a is formed to penetrate in the left-right direction.

The sliding portion includes a head portion 1631a and an inner cylinder portion 1631b formed behind the head portion 1631a.

The head portion 1631a is formed with an inclined surface (not shown) on the front left side. This inclined surface (not shown) can smoothly press the head portion 1631a by the engagement portion pressing portion 1330. [

The outer end of the head portion 1631a is formed so as to protrude outward from the latch 1200. Therefore, even if the head portion 1631a is pushed by the latch portion pressing portion 1330, the latch 1200 and the latch portion pressing portion 1330, which are rotated, are prevented from interfering with each other.

The inner cylinder 1631b is inserted into the fixed portion 1649. [

On both sides of the rear outer circumferential surface of the inner cylinder 1631b, an outer cylinder locking protrusion 1631c is formed so as to protrude outward. The outer barrel locking protrusion 1631c is inserted into the guide slot 1649a.

The inner cylinder portion 1631b is formed so that the hollow is open and the rear side is open.

Between the inner cylinder portion 1631b and the fixed portion 1649, a latching return spring 1648 for returning the sliding portion of the latching portion 1631 to the original position is disposed.

The return spring 1648 is provided as a coil spring. The front end of the return spring 1648 is inserted into the inner cylinder portion 1631b.

Even if the second driving portion 1600 fails after the door 1 is closed or closed through the second driving portion 1600 due to the engagement portion 1631, (Not shown), the door 1 can be manually opened.

The latching part 1631 normally rotates the latch 1200 automatically by the driving force of the motor 1610 when the door 1 is closed to some extent even if the user does not completely close the door 1 when the door 1 is closed, Thereby restricting the latch 1200 to the tiltable member 1370 and the main locking member 1300.

A first main gear sensing portion 1649b and a second main gear sensing portion 1633 are provided on the outer circumferential surface of the main gear 1630 to be sensed by the fifth sensor 1911.

The first main gear sensing portion 1649b is integrally formed behind the fixed portion 1649 of the engaging portion 1631. [

A second locking member 1700 is disposed between the rear surface of the first housing 1110 and the front surface of the main gear 1630. Therefore, the engaging projection 1710 of the second locking member 1700 engages with the engaging portion 1631. The second driving portion 1600 moves the second locking member 1700 through the locking portion 1631. [

The second main gear sensing portion 1633 is disposed behind the second locking member 1700 so that the second main gear sensing portion 1633 is not caught by the second locking member 1700 when the main gear 1630 is rotated.

The first main gear sensing portion 1649b and the second main gear sensing portion 1633 are spaced apart from each other in the circumferential direction.

More specifically, the second main gear sensing portion 1633 is disposed on the right side of the first main gear sensing portion 1649b.

The first main gear sensing portion 1649b and the second main gear sensing portion 1633 are formed to protrude outward on the outer peripheral surface of the main gear 1630. Accordingly, the first main gear sensing portion 1649b and the second main gear sensing portion 1633 can be formed in a simple structure.

The first main gear sensing portion 1649b and the second main gear sensing portion 1633 are formed on the gear portion of the main gear 1630.

The first main gear sensing portion 1649b and the second main gear sensing portion 1633 are formed such that the outer peripheral surface thereof is inclined so as to protrude outward toward the center portion so that the fifth sensor 1911 provided as a limit switch is smoothly pushed .

The opening and closing of the door 1 using the latch 1200 and the locking and unlocking of the door 1 using the second locking member 1700 can be performed by one second driving unit 1600, , And can be made compact, and the manufacturing cost can be reduced.

The vehicle door latch system 5 of the present invention can perform the unlocking without jamming (Jam / JAM) even if the door unlocking is performed while pulling the door lever (not shown) in the door locked state .

This is explained in the following order.

The first lever 10 or the second lever (not shown) of the door 1 in the locked state is pulled out.

At this time, since the engaging lever portion 1450 is not engaged with the sub-locking member 1400, the sub-locking member 1400 moves along the first lever 10 or the second lever (not shown) 1300 without affecting the main locking member 1300.

When the lock release operation is performed by using a key or a remote controller or the like during this operation, the latch lever part 1450 rotates forward to be connected to the sub-locking member 1400. [

However, since the locking lever portion 1450 rotates in a state of pulling the door lever (not shown), the locking lever portion 1450 is not connected to the sub-locking member 1400 which is spaced apart from the main locking member 1300 The engaging lever portion 1450 is inserted into the spaced-apart space between the main locking member 1300 and the sub-locking member 1400.

At this time, when the door lever (not shown) being pulled is released, the sub locking member 1400 is moved toward the main locking member 1300 by the resilient restoring force of the spring.

The sub locking member 1400 enters the locking lever portion 1450 and the locking lever portion 1450 is fastened to the sub locking member 1400.

Sensors installed on the PCB 1900 of the door latch system 5 for a vehicle of the present invention are connected to a room lamp (not shown) and a dashboard (not shown) so that the user can easily grasp the open and closed states of the door 1 .

Hereinafter, the operation of the door latch system for a vehicle 5 according to the first embodiment of the present invention will be described.

<Door closed>

21 to 24 show a process in which the door 1 on the side of the vehicle is closed.

21, when the user closes the door 1 in an open state, the striker 1101 installed on the vehicle body pushes the latch 1200 to rotate the latch 1200 in the clockwise direction.

The latch 1200 is rotated in the clockwise direction to press the sixth sensor 1910 and the locking portion 1371 of the pivoting member 1370 is inserted into the auxiliary locking groove 1202. The controller receives the signal from the sixth sensor 1910 and operates the motor 1610 of the second driving unit 1600 to rotate the locking unit 1631 clockwise. The protrusion 1215 of the latch 1200 is caught in the latching portion 1631 and the latch 1200 is also rotated in the clockwise direction.

At this time, as shown in FIG. 22, the outer peripheral surface (between the auxiliary locking groove and the locking groove) of the rotated latch 1200 pushes the locking portion 1371 of the tiltable member 1370. Thus, the tiltable member 1370 is rotated counterclockwise. However, the pivoting member insertion groove 1317 is provided with a space in which the insertion protrusion 1373 of the pivoting member 1370 can be escaped to the right, so that even if the pivoting member 1370 is rotated counterclockwise, the main locking member 1300 ) Is not pushed to the right side but keeps its original position.

24, when the locking portion 1631 is rotated by the motor 1610 to reach the closed position of the door 1, the locking portion 1371 is rotated by the elastic force of the rotation member spring 1390 And is inserted into the locking groove 1201 while the second main gear sensing portion 1633 is sensed by the fifth sensor 1911. The control unit receives the signal from the fifth sensor 1911 and rotates the motor 1610 in the reverse direction. The controller rotates the main gear 1630 until the first main gear sensing portion 1649b is sensed by the fifth sensor 1911. [ When the first main gear sensing unit 1649b presses the fifth sensor 1911, the control unit stops the operation of the motor 1610.

Thus, the main gear 1630 is returned to the basic position. The main gear 1630 is returned to the basic position after the door 1 is closed or the door 1 is locked, so that the driver can manually lock the door 1 and release the door 1.

As described above, the vehicle door latch system 5 of this embodiment can rotate the latch 1200 to the closed position of the door 1 through one sensor and return the main gear 1630 to the basic position.

If an emergency such as the infant's finger or clothes is stuck between the door 1 and the vehicle body during the closing of the door 1 by operating the motor 1610, the first lever 10 or the second lever When the second sensor 1903 senses the first sensing unit 1351 moved to the right by pulling the second sensing unit 1351, the control unit reversely rotates the motor 1610 to send the engaging unit 1631 to the basic position, 1) can be opened.

<Locking of the door 1 through the first locking member>

25 to 27 show the process of locking the door 1 on the side of the vehicle.

As shown in Fig. 25, when the door 1 in the unlocked state is in the state of the key / remote control / lock button / speed And the operation to be locked due to the setting by the threshold value or the like.

When the lock of the door 1 is inputted through the motor 1651 of the first driving part 1650, the motor 1651 operates to rotate the second gear 1653 clockwise as shown in Fig.

When the second gear 1653 rotates clockwise, the rotation locking portion 1656 pushes the locking portion 1502 of the first locking member 1500 to slide the first locking member 1500.

26, the first locking lever portion 1450a and the locking protrusion 1457 of the second locking lever portion 1450b are engaged with the first locking lever portion 1450a and the second locking lever portion 1450b, respectively, The locking protrusion 1455 is inserted into the insertion space 1509 on the inclined surface 1511 of the protrusion guide portion 1507 and the locking protrusion 1455 is moved rearward by the first sub locking member 1400a and the second sub- Respectively, in the locking member 1400b. Therefore, when the door 1 is locked and the first lever 10 or the second lever (not shown) is pulled, the force is not transmitted to the main locking member 1300.

The rotation latching portion 1656 pushes the first locking member 1500 until the second sensor 1521 of the first locking member 1500 is sensed by the fourth sensor 1907 and returns to the home position.

In order to lock the door 1 with the key, the key is inserted into the key insertion groove of the vehicle to rotate the key connector 1550.

When the key connector 1550 rotates in the clockwise direction, the first keyed portion 1554 pushes the locking portion 1502 of the first locking member 1500 to slide the first locking member 1500.

At this time, the first locking member 1500 moves to the right, and the locking projection 1455 is disengaged from the first sub-locking member 1400a and the second sub-locking member 1400b, respectively. As a result, the door 1 is locked.

When the control unit receives the signal from the fourth sensor 1907, it notifies the user that the signal is locked. The user reverses the key and then pulls out the key. This causes the key connector 1550 to return to its home position.

<First Locking Member Unlocking>

28 and 30 show a process in which the door 1 on the side of the vehicle is unlocked.

As shown in Fig. 28, the operation in which the locked door 1 is unlocked due to the setting by the key / remote control / lever lock button / vehicle speed threshold, etc. will be described.

When the unlocking of the door 1 through the motor 1651 of the first driving part 1650 is inputted, the motor 1651 is operated to rotate the second gear 1653 in the counterclockwise direction .

When the second gear 1653 rotates counterclockwise, the rotation locking portion 1656 pushes the locking portion 1502 to slide the first locking member 1500.

At this time, the first locking member 1500 is moved to the left, and the first locking lever portion 1450a and the second locking lever portion 1450b are removed from the insertion space 1509 of the first projection guide portion 1507 The locking projection 1455 is moved forward by the second return spring 1460 and the locking projection 1455 is engaged with the first sub-locking member 1400a and the second sub-locking member 1400b, respectively. As a result, when the door 1 is unlocked and the door lever (not shown) is pulled, the force is transmitted to the main locking member 1300.

The second rotation latching portion 1657 pushes the first locking member 1500 until the second sensor 1521 of the first locking member 1500 is sensed by the third sensor 1905 and returns to the home position .

In order to unlock the door 1 with the key, the key is inserted into the key insertion groove of the vehicle to rotate the key connector 1550.

When the key connector 1550 is rotated in the counterclockwise direction, the second key hook portion 1552 pushes the locking hook portion 1502 of the first lock member 1500 to slide the first lock member 1500.

At this time, the first locking member 1500 is moved to the left, and the locking projection 1455 is engaged with the first sub-locking member 1400a and the second sub-locking member 1400b, respectively. As a result, the door 1 is in the unlocked state.

When the control unit receives the signal from the third sensor 1905, the control unit informs the user that the signal is unlocked. The user reverses the key and then pulls out the key. This causes the key connector 1550 to return to its home position.

&Lt; Unlocking the first lock member using the first lever >

As shown in Fig. 31, when the door 1 is in the locked state, the first sub-locking member 1400a is slid to the right when the first lever 10 is pulled out once, as shown in Fig.

At this time, the unlocking portion pressing portion 1407 of the first sublocking member 1400a is slid to the right and the first engaging portion 1563 of the unlocking portion 1560 is pushed to the right. As a result, the second latching portion 1562 of the unlocking portion 1560 is moved to the left by the principle of the leverage. In addition, the second locking portion 1562 moves the first locking member 1500 to the left.

The first engaging lever portion 1450a and the second engaging lever portion 1450b are engaged with the insertion space of the first projection guide portion 1507 as the first locking member 1500 moves to the left, The locking projection 1455 is moved forward by the second return spring 1460 and the locking projection 1455 is engaged with the first sub locking member 1400a and the second sub locking member 1400b Respectively. As a result, the door 1 is unlocked.

At this time, when the first lever 10 is pulled out again, the first sub-locking member 1400a slides to the right side and the main locking member 1300 also slides to the right side together with the first sub-locking member 1400a. When the main locking member 1300 slides to the right side, the insertion protrusion 1373 of the pivoting member 1370 is caught by the main locking member 1300 so that the pivoting member 1370 is rotated counterclockwise. When the tiltable member 1370 is rotated, the locking portion 1371 is released from the locking groove 1201, so that the side door 1 of the vehicle can be opened.

&Lt; Door locking through second locking member >

When the driver inputs the inner door lock using the second locking member 1700 through a button or the like, the control unit operates the motor 1610 of the second driving unit 1600 according to a signal. When the motor 1610 is operated, the main gear 1630 also rotates. When the main gear 1630 rotates counterclockwise, the driving portion locking projection 1710 is engaged with the locking portion 1631, and the second locking member 1700 also slides to the right. That is, the main gear 1630 pushes the second lock member 1700 to the right.

When the first locking member 1700 is applied with an external force as described above, the locking member spring 1760 is contracted and the locking guide member 1760, which is located on the first inclined surface 1781 of the cam portion 1780, The cam guide portion 1793 of the cam groove 1790 is moved to the lower path and inserted into the engaging groove 1786. In this state, the second lock piece 1700 receives the elastic force of the lock piece spring 1760 in the left direction, and the position of the second lock piece 1700 is stably maintained. That is, the state in which the second lock piece 1700 is moved to the right is maintained.

35, the child protrusion 1453 of the first locking lever portion 1450a is caught by the second projection guide portion 1720 and is moved rearwardly as shown in FIG. Guidance. As a result, the first engaging lever portion 1450a is disengaged from the first engaging jaw 1405a of the first sub-locking member 1400a. Thus, the first sub-locking member 1400a and the main locking member 1300 are separated from each other, so that the first sub-locking member 1400a and the main locking member 1300 do not slide together.

Meanwhile, the motor 1610 is operated until the third sensor 1741 is sensed by the eighth sensor 1902.

After the second motor 1610 is automatically locked through the second lock member 1700, the motor 1610 rotates in the opposite direction and moves to the basic position. And does not catch on the second lock piece 1700 when the main gear 1630 rotates in the clockwise direction.

Further, when the second locking member 1700 is slid to the right as described above, the unlocking interlocking portion 1770 also slides to the right, as shown in Fig. As a result, the linear guide surface 1774 is brought into contact with the rear surface of the unlocking portion 1560. Therefore, the unlocking portion 1560 is rotated horizontally in the left-right direction. Thus, the first engaging portion 1563 is moved rearward so that the first engaging portion 1563 is not caught by the unlocking portion pressing portion 1407 even if the first sub-locking member 1400a is moved to the right. Therefore, when the door is locked through the second locking member 1700, the first locking member 1500 can not be unlocked through the first lever 10.

When the door lock of the second locking member 1700 is completed, the right end of the curved guide surface 1773 is disposed on the right side of the second locking portion 1562.

&Lt; Second lock member unlocking >

When the driver inputs the unlocking of the second locking member 1700, the control unit receives the signal and operates the motor 1610 of the second driving unit 1600. When the motor 1610 is operated, the main gear 1630 rotates counterclockwise in the same manner as when the door is locked. When the main gear 1630 is rotated in the counterclockwise direction in order to bring the main gear 1630 into the unlocked state, the main gear 1630 is rotated counterclockwise for a predetermined time and then rotated clockwise to return to the basic position .

When the main gear 1630 rotates counterclockwise, the driving portion locking projection 1710 is engaged with the locking portion 1631 so that the second locking member 1700 also slightly slides rightward. That is, the main gear 1630 pushes the second lock member 1700 to the right. 36, the cam guide portion 1793 of the locking guide member 1790 is biased by the elastic force of the lock member spring 1760 And comes out of the latching groove 1786.

When the main gear 1630 is rotated in the clockwise direction, the second lock member 1700 is not caught by the main gear 1630 and receives only the elastic force of the lock member spring 1760 in the left direction. Therefore, the second locking member 1700 is slid to the left due to the elastic force of the locking member spring 1760.

The locking guide member 1790 to which the second locking member 1700 is to slide in the left direction is moved to the upper path and returned to the left side of the cam portion 1780. [

When the second locking member 1700 is slid to the left as described above, the child protrusion 1453 of the first locking lever portion 1450a of the second projection guide portion 1720 comes out, The right side of the first engagement lever portion 1450a is moved forward by the elastic force of the second return spring 1460. [ As a result, the first engaging lever portion 1450a is caught by the first engaging jaw 1405a of the first sub-locking member 1400a. Thus, the first sub-locking member 1400a and the main locking member 1300 are connected, and the first sub-locking member 1400a and the main locking member 1300 slide together.

On the other hand, when the third sensor 1741 is detected by the seventh sensor 1904, the controller informs that the second lock member 1700 is unlocked.

The second locking member 1700 of the present embodiment moves the end of the locking guide member 1790 to the lower path to be caught in the locking groove 1786 when the primary external force is applied and when the secondary external force is applied, The end of the member 1790 exits from the engagement groove 1786 and moves to the upper path.

Therefore, when the first locking member 1700 is applied with the primary external force, the moved position is maintained, and then the secondary locking member 1700 returns to the original position when the secondary external force is applied in the same direction as the primary external force.

Therefore, even if the second lock member 1700 is moved by the same main gear 1630 as that of the latch 1200 while the vehicle door latch system 5 is simply held, the main gear 1630 does not move to the latch 1200 The locking of the second locking member 1700 is prevented from being released.

Further, when the second locking member 1700 is slid to the left as described above, the unlocking interlocking portion 1770 also slides to the left. As a result, the contact between the linear guide surface 1774 and the rear surface of the unlocking portion 1560 is released. The upper portion of the second latching portion 1562 of the unlocking portion 1560 is hooked to the right end of the bending guide surface 1773 so that the unlocking portion 1560 is rotated and disposed in the forward and backward directions. Therefore, the first latching portion 1563 of the unlocking portion 1560 is disposed on the right side of the unlocking portion pressing portion 1407 of the first sub-locking member 1400a.

As a result, when the first locking member 1500 is in a locked state and the first sub-locking member 1400a is moved to the right, the first locking portion 1563 is engaged with the unlocking portion pressing portion 1407, The lower portion of the second latching portion 1562 contacts the unlocking portion contact portion 1515 by rotating the release portion 1560 and pushes the first lock member 1500 to the left.

Therefore, when the door lock of the second lock member 1700 is unlocked, the first lock member 1500 is unlocked through the first lever 10.

When the door lock of the second locking member 1700 is completed, the upper portion of the second locking portion 1562 is disposed in the guide groove 1771 surrounded by the curved guide surface 1773.

<Door Deadlock>

When a deadlock is inputted through a car key or a remote controller, the controller locks the door 1 by simultaneously operating the first locking member 1500 and the second locking member 1700.

The control unit operates the first driving unit 1650 to lock the door 1 through the first locking member 1500 through the process described above. Also, the control unit operates the second driving unit 1600 to lock the door 1 through the second locking member 1700 through the process described above.

When the second locking member 1700 is operated as described above, the first lever 10 and the first locking member 1500 can not be interlocked with each other through the unlocking portion 1560 and the first lever 10 So that the door 1 can not be opened.

Further, when the first locking member 1500 is operated, the door 1 is not opened through the second lever (not shown).

Thus, the door 1 can not be opened even through the first lever 10, and the door 1 can not be opened through the second lever (not shown) outside the vehicle.

Therefore, even if a person breaks the window and intrudes, the door 1 can not be opened.

If the first locking member 1500 or the second locking member 1700 is already in operation before the deadlock, the control unit operates only the locking member that is not operated.

In addition, even if the first locking member 1500 or the second locking member 1700 is electrically unlocked, the first locking member 1500 or the first locking member 1500 unlocked through the sensor, 2 lock member 1700 to the deadlock state.

That is, when receiving the lock release signal from the key or the remote control, the control unit releases the deadlock.

In addition, when the deadlock is released, the control unit maintains the lock of the second lock member 1700 and the lock of the second lock member 1700 when the lock of the second lock member 1700 is activated before the deadlock input, Unlock only. The child lock function can be maintained without any instruction, thereby improving the usability.

Further, when the deadlock is inputted, the control unit can inform the user through the notification device installed in the car key, the remote control, or the car, thereby preventing malfunction. In addition, through the notification, the user can check once again whether there is a person inside the vehicle, thereby preventing damage to persons.

<Door open when motor breakdown>

38, when the engaging portion 1631 is moved to the closed position of the door 1 to automatically close the door 1 through the motor 1610, during the movement, or when returning to the basic position, (1610) may fail.

In this case, when the first lever 10 or the second lever (not shown) is pulled, the main locking member 1300 moves to the right side as shown in FIG. 39, and the locking portion pressing portion 1330 also moves to the right .

As a result, the latching portion pressing portion 1330 presses the head portion 1631a of the latching portion 1631. When the head portion 1631a is pressed, the head portion 1631a is moved rearward of the protrusion 1215 of the latch 1200 to release the engagement of the latch portion 1631 and the latch 1200. [

Then, as shown in FIG. 40, when the user pulls the door 1, the striker 1101 rotates the latch 1200 counterclockwise and the door 1 is opened.

If the first lever 10 or the second lever (not shown) is pulled out even if the second driving unit 1600 fails after the door 1 is closed or closed through the second driving unit 1600, So that the door 1 can be opened.

When the user places the first lever 10 or the second lever (not shown), the latching portion 1631 is slid forward by the return spring 1648 and is returned to its original position.

On the other hand, as shown in FIG. 41, when the user normally opens the door 1 or pulls the door lever to release the door lock, The engaging portion 1631 is not pressed by the engaging portion pressing portion 1330 due to the bent portion 1332. [ Therefore, the operating force for moving (sliding) the main locking member 1300 in normal times is prevented from rising.

&Lt; Assembly method of vehicle door latch system >

A method of assembling the door latch system 5 for a vehicle according to the first embodiment described above is as follows.

(Second locking member 1700 or the like) provided on the rear surface of the first housing 1110 are provided. Next, the third housing 1150 is coupled and fastened to the rear surface of the first housing 1110 through bolts or rivets.

A main locking member 1300, a sub-locking member 1400, and the like are installed on the front surface of the first housing 1110. The latch 1200 and the first return spring 1250 and the pivoting member 1370 and the pivot member spring 1390 are engaged with the latch pivot shaft 1230 and the first return spring pivot shaft 1251 A rotary shaft 1380 and a rotary spring locking shaft 1391. [ Then, the first housing 1110 and the second housing 1130 can be assembled by joining and fastening them together through bolts or rivets.

The assembling process of the door latch system 5 for a vehicle can be further facilitated through such an assembling process.

=================== <Second Embodiment of the Present Invention> ===================

In describing the door latch system for a vehicle according to the second embodiment of the present invention, the same or similar components as those of the door latch system for a vehicle according to the first embodiment are denoted by the same reference numerals, and detailed description and illustration are omitted .

As shown in Figs. 42 and 43, in the door latch system for a vehicle according to the second embodiment, the main gear 2630 is not provided with the latch portion engaged with the latch 2200, so that the apparatus becomes compact and the manufacturing cost becomes low .

The latch 2200 is rotatably mounted on the front surface of the first housing 2110 of the housing and the latch 2200 is coupled to the pivoting member 2370 of the main locking member 2300 Lt; / RTI &gt;

The tiltable member 2370 is rotatably installed on the front surface of the first housing 2110 and the main locking member 2300 is installed on the front surface of the first housing 2110 so as to be slidable in the left and right direction.

A sub locking member (not shown) is connected to the rear side of the main locking member 2300 by the connecting means.

A first locking member 2500 is slidably installed on the rear surface of the first housing 2110 and a second locking member 2700 is slidably mounted on the rear surface of the first housing 2110, And a second driving unit 2600 for driving the second locking member 2700 are installed.

The first locking member 2500 includes a first locking latch 2502, a cable connecting portion 2501, a second locking latch 2502a, a second sensing member 2519, a first projection guide, (2515) are integrally formed in order from the left side to the right side.

Like the first embodiment, the first locking member 2500 is formed in a long plate shape in the left-right direction.

The first locking part 2502 is formed to protrude forward from the right end of the first locking part 2500 so as to engage with the first key part and the second key part of the key connector (not shown). The key connector is rotatably installed on the rear surface of the first housing 2110. The key connector is disposed in front of the first locking latching portion 2502. Since the shape of the key connector is the same as that of the first embodiment, a description thereof will be omitted.

The cable connection portion 2501 is disposed under the first locking latch portion 2502.

The second locking latch portion 2502a is formed to protrude upward and is formed into a bar shape.

The second lock catching portion 2502a is disposed to be apart from the first lock catching portion 2502 to the right.

The second sensing member 2519 is formed in a vertical plate shape protruding rearward.

And the second sensing member 2519 is disposed on the right side from the second locking latching portion 2502a.

The second sensing member 2519 presses the fourth sensor 2907 provided with a switch sensor such as a limit switch so as to know whether the door is locked by the first locking member 2500. The fourth sensor 2907 is installed in front of the third housing.

The first protrusion guide portion is formed to protrude forward of the first locking member 2500.

The unlocking portion contact portion 2515 is formed at the right end of the first lock member 2500.

The first driving portion 2650 is disposed on the upper left side of the first locking member 2500.

The first driving unit 2650 is installed on the rear surface of the first housing 2110.

The first driving portion 2650 includes a motor 2651, a first gear 2652 connected to the motor 2651 and a second gear 2653 linked to the first gear 2652.

The motor 2651 is installed so that the axes thereof are arranged in the vertical direction.

The first gear 2652 is provided on the shaft of the motor 2651 and is provided as a worm.

The second gear 2653 is disposed in the front-rear direction of the shaft, and is provided as a worm gear.

A first rotation latching portion 2656 and a second rotation latching portion 2657 spaced apart from the first rotation latching portion 2656 in the left and right direction are formed on the rear surface of the second gear 2653 so as to protrude rearward . The first rotation engaging portion 2656 and the second rotation engaging portion 2657 are disposed on both sides of the axis of the second gear 2653, respectively.

A second locking latching portion 2502a is disposed between the first rotation latching portion 2656 and the second rotation latching portion 2657. Accordingly, when the second gear 2653 rotates, the second lock engaging portion 2502a is engaged with the first rotation engaging portion 2656 or the second rotation engaging portion 2657, so that the first lock member 2500 Right or left. Through such a process, the first locking member 2500 is locked or unlocked. The second gear 2653 is returned to the home position after moving the first locking member 2500. [

The second lock piece 2700 is formed in a long plate shape in the left-right direction.

The second locking member 2700 is disposed on the upper right side of the first locking member 2500.

The second locking member 2700 is integrally formed from the left side to the right side with the driving portion locking projection 2710, the second projection guide (not shown), and the unlocking interlocking portion 2770.

The driving portion locking projection 2710 is formed so as to protrude upward. The driving portion locking protrusions 2710 are formed in a plate shape arranged vertically.

The driving portion locking projection 2710 presses and depresses the eighth sensor 2902 provided with a switch sensor such as a limit switch so as to know whether the door is locked by the second locking member 2700 or not. The eighth sensor 2902 is installed in front of the third housing.

And the second projection guide is formed in front of the second lock member 2700. [

The unlocking interlocking portion 2770 is formed to protrude to the right under the right lower portion of the second lock member 2700. [ The unlocking interlocking portion 2770 is disposed on the upper portion of the unlocking portion 2560. Therefore, the unlocking portion 2560 is disposed between the unlocking interlocking portion 2770 and the unlocking portion contacting portion 2515. [

The first locking member 2500 and the second locking member 2700 are stably positioned at the locking position and the unlocking position via the stopper projection and the stopper projection as described in the first embodiment.

The second driving portion 2600 is disposed at the upper left of the second locking member 2700.

The second driving portion 2600 includes a motor 2610, a gear 2613 rotated by the motor 2610, and a main gear 2630 rotated in engagement with the gear 2613.

The motor 2610 is disposed on the right rear upper surface of the first housing 2110 with its axis disposed in the left-right direction. As such, the motors 2651 and 2610 are disposed at the upper portion of the housing to prevent the motors 2651 and 2610 from being flooded.

The gear 2613 is installed on the shaft of the motor 2610 and is provided as a worm.

The main gear 2630 is disposed in the front-rear direction and is provided as a worm gear.

A first engaging portion 2631 and a second engaging portion 2634 are formed on the rear surface of the main gear 2630 so as to be spaced apart from each other in the left-right direction.

The first engaging portion 2631 and the second engaging portion 2634 are formed to protrude rearward.

An upper portion of the driving unit locking protrusion 2710 is disposed between the first locking portion 2631 and the second locking portion 2634.

Therefore, when the main gear 2630 rotates, the upper portion of the driving portion locking projection 2710 is engaged with the first locking portion 2631 or the second locking portion 2634, so that the second locking member 2700 is moved to the right or left . Through such a process, locking or unlocking through the second locking member 2700 is performed. The main gear 2630 is returned to the basic position after moving the second lock member 2700. [

Further, a sixth sensor 2910 is installed in the third housing. The sixth sensor 2910 is provided with a limit switch or the like, and is pressed when the latch 2200 is in the door closing state. That is, the sixth sensor 2910 senses whether or not the door is closed. The control unit receives a signal from the sixth sensor 2910 and informs the user whether the door is closed.

=================== <Third Embodiment of the Present Invention> ===================

In describing the door latch system for a vehicle according to the third embodiment of the present invention, the same or similar components as those of the door latch system for a vehicle according to the first and second embodiments are denoted by the same reference numerals, .

44 to 48, the latch 3200 of the door latch system for a vehicle according to the third embodiment is disposed in front of the housing and includes a door connecting the first and second lever and the sub- The cable connection portion 3800 is disposed at a front upper portion of the housing and a cable lead portion 3159 is formed at a rear upper portion of the housing and the cable 3810 connected to the first locking member 3500 is connected to the housing And is drawn out to the rear upper portion.

As shown in FIG. 45, the latch 3200 is disposed in front of the first housing 3110 of the housing.

The main locking member 3300 is provided with a pivoting member 3370, and the sub locking member is disposed behind the main locking member 3300. [ The main locking member 3300 and the pivoting member 3370 are disposed in front of the first housing 3110.

The sub-locking member is also disposed in front of the first housing 3110.

The first and second lever connection portions 3800a and 3800b of the door lever connection portion 3800 that connects the first and second levers and the sub locking member are disposed at a front upper portion of the first housing 3110 of the housing, And is drawn to the right side of the front upper portion of the housing.

The sub-locking member and the door lever connection portion 3800 are disposed above the locking portion of the tiltable member 3370.

Further, the first lever connection portion 3800a is guided rearward by a guide tube surrounding the wire.

As described above, the sub-locking member and the door lever connection portion 3800 are disposed, and the vertical width of the device is greatly reduced as compared with the conventional device. Therefore, the door latch system of the present embodiment can be applied to the door 1 having a small width of the door 1.

44, a wire lead-out portion 3159 is formed on the right rear upper portion of the third housing 3150 provided at the rear of the first housing 3110 of the housing.

A wire connected to an electronic part such as a motor or a sensor installed in the housing is drawn out through the wire lead-out part 3159.

The cable 3810 which is indirectly connected to the first locking member 3500 and moves the first locking member 3500 is drawn to the left rear upper portion of the third housing 3150. [ As described above, when the cable 3810 is pulled backward and the door latch system is installed on the door 1, the cable 3810 is prevented from being bent and the assembling property is improved.

A cable lead-out portion 3158 protrudes rearward from the left rear upper portion of the third housing 3150.

The upper portion of the cable lead-out portion 3158 is provided with a cover hole 3157 formed through the assembly hole in the vertical direction and blocking the assembly hole. The cover 3157 may be formed of a material having elasticity such as rubber and may be waterproof. The cable 3810 can be easily installed on the cable mounting portion 3659 described below through the holes.

46, a first locking part 3500, a second locking part 3700, a first driving part for operating the first locking part 3500, and a second driving part for operating the first locking part 3500 are formed on the rear surface of the first housing 3110, A second driving portion 3600 for operating the second locking member 3700 and a key connector 3550 for sliding the first locking member 3500 are provided.

The first locking member 3500 is disposed laterally in the middle of the rear surface of the first housing 3110.

The first locking member 3500 has a first locking part 3502 on the left side and a second locking part 3502a on the right side of the first locking part 3502.

The first locking latching portion 3502 is formed to protrude forward and is disposed below the second locking latching portion 3502a. The first locking latch 3502 is inserted into the key connector cutout portion of the key connector 3550 and is engaged with the first and second key latches.

The second locking latching portion 3502a is elongated in the front-rear direction, and a groove into which the rotation latching portion 3656 is inserted is formed long in the front-rear direction. The grooves are formed so that the front and rear directions and the top are opened. The second lock catching portion 3502a is a portion caught by the rotation engaging portion 3656 of the second gear 3653 of the first driving portion. Therefore, the rotation latching portion 3656 is movable in the front-rear direction with respect to the first locking member 3500. [

On the right side of the first locking member 3500, a first projection guide portion and a lock releasing portion contact portion are formed.

The key connector 3550 is disposed on the left rear side of the first housing 3110, and the key insertion groove is exposed through the lower portion of the housing.

The key connector 3550 is disposed under the first locking latch 3502.

The first driving unit is disposed on the left rear side of the first housing 3110 and disposed on the upper side of the first locking member 3500.

The first driving unit includes a motor 3651, a first gear 3652 connected to the motor 3651 and a second gear 3653 linked to the first gear 3652.

The axis of the motor 3651 is arranged in the left-right direction.

The first gear 3652 is disposed in front of the second gear 3653 and is provided as a worm.

The first gear 3652 is arranged in the left-right direction.

The second gear 3653 is provided as a worm gear and mounted on a gear guide 3119 formed to project rearward from the rear surface of the first housing 3110. Due to such a gear guide 3119, the second gear 3653 can be smoothly rotated without a separate shaft.

The shaft of the second gear 3653 is arranged in the vertical direction, the cable installation portion 3659 is formed on the upper portion, and the rotation engagement portion 3656 is formed on the lower portion.

The cable installation portion 3659 is formed so as to protrude upward, and the latch member insertion groove in which the latch member of the cable 3810 is inserted is formed so as to open the upper portion.

The cable mounting portion 3659 is disposed behind the rotation latching portion 3656.

The second gear 3653 has upper and lower peripheral protrusions along its edges. The circumferential protrusions are connected to the cable mounting portion 3659 and the rotation engaging portion 3656, respectively, so that the durability of the second gear 3653 is improved. Further, the peripheral projecting portion is guided by the gear guide 3119.

In this door latch system, when the user presses the cable 3810, the second gear 3653 rotates counterclockwise. As a result, the rotation latching portion 3656 is also rotated, and the rotation latching portion 3656 is moved to the right. Therefore, the first locking member 3500 is also moved to the right side, and the door 1 is locked by the first locking member 3500.

The second locking member 3700 is disposed on the upper right side of the first locking member 3500.

The second locking member 3700 is integrally formed from the left side to the right side with the driving unit locking projection, the second projection guide, and the unlocking interlocking portion.

The second locking member 3700 is disposed on the right side of the motor 3651 of the first driving unit.

The second driving portion 3600 is disposed below the second locking member 3700 and disposed behind the first locking member 3500.

The second driving portion 3600 includes a motor 3610, a gear 3613 rotated by the motor 3610, and a main gear 3630 rotated by engagement with the gear 3613.

The axis of the motor 3610 is arranged in the left-right direction. The motors 3651 and 3610 of the first and second driving units 3600 are disposed apart from the left end of the housing.

The gear 3613 is disposed in the left-right direction and is provided with a worm.

The main gear 3630 is disposed in the front-rear direction and is provided as a worm gear.

The main gear 3630 is disposed behind the first lock member 3500.

An unlocking portion is disposed between the right side of the second lock member 3700 and the right side of the first lock member 3500.

48, the door latch system of this embodiment is provided with a front surface on the rear surface of the door 1, a right surface facing the upper portion of the door 1, a left surface facing the lower portion of the door 1, And the rear surface faces the front of the door 1. [ The first and second lever connection portions 1800a and 1800b and the cable 3810 and the electric wires of the door latch system provided on the door 1 are disposed close to the inner side surface of the door 1, Interference with the glass 30 disposed close to the side surface is prevented.

=================== <Fourth Embodiment of the Present Invention> ===================

In describing the vehicle door latch system according to the fourth embodiment of the present invention, the same or similar components as those of the door latch system for a vehicle according to the first, second, and third embodiments are denoted by the same reference numerals, It will be omitted.

As shown in Figs. 49 to 57, the door latch system for a vehicle according to the fourth embodiment includes a housing, a latch 4200 rotatably installed in the housing, a latch 4200 for locking the latch 4200, A first locking member (4500) slidably installed in the housing and connected to the first lever and the second lever to prevent the door from being opened even when the second lever is pulled out, A second locking member 4700 installed to the first locking member 4500 so as to prevent the door from being opened even when the first lever is pulled out and a driving unit 4600 for moving the first locking member 4500 and the second locking member 4700 The driving unit 4600 includes a motor 4610 and a driving lever 4610 which is rotated or moved by the motor 4610 to move the first locking member 4500 and the second locking member 4700. [ (4650), said second locking member A flow space portion 4711 is formed in the first lock member 4700 so that the drive lever 4650 can flow with respect to the second lock member 4700.

The housing includes a first housing 4110, a second housing 4130 covering the front of the first housing 4110, and a third housing 4150 covering the rear of the first housing 4110.

A cable draw-in portion 4159 is formed in the middle of the rear upper portion of the housing, and a cable 4810 connected to the first lock member 4500 is pulled out to the right rear upper portion of the housing.

The third housing 4150 is formed with a cable lead-out portion 4158 protruding rearward from which the cable 4810 is drawn.

The latch 4200 is rotatably installed on the front surface of the first housing 4110 of the housing.

When the door is in the closed state, the latch 4200 presses the sixth sensor 4910 so that the user can know whether or not the door is closed.

The door closing member is also slidably installed on the front surface of the first housing 4110 of the housing in the left-right direction.

The door closing member locks the latch 4200 and is connected to the first lever and the second lever to slide.

The door closing member includes a main locking member 4300 and a sub locking member 4400 connected to the main locking member 4300 through a connecting means such as a locking lever portion 4450.

The main locking member 4300 includes a pivoting member to lock the latch 4200. [

The sub-locking member 4400 includes two first and second lever connection portions 4800a and 4800a that are disposed at the upper and lower portions, respectively, and each sub-locking member 4400 is connected to the first lever disposed inside the door. And a second lever connection portion 4800b connected to the second lever is disposed.

The first lever connection portion 4800a and the second lever connection portion 4800b are extended to the upper right portion of the housing, and the first lever connection portion 4800a is guided rearward.

The first locking member 4500 is slidable in the left and right directions on the housing so that the main locking member 4300 of the door closing member can not be moved even when the first lever or the second lever is pulled, .

The first locking member 4500 is horizontally disposed in the left-right direction on the rear surface of the first housing 4110.

The first locking member 4500, the second locking member 4700, and the driving unit 4600 are disposed on the right side of the striker insertion groove 4105. This makes the front-back width of the apparatus more compact.

A first protrusion guide portion 4507 for guiding the locking protrusion of the locking lever portion 4450 to the rear is formed in front of the first locking member 4500 so that the first lever or the second lever is pulled out, Lt; / RTI &gt; The process of locking the first locking member 4500 and the second locking member 4700 will be described in the first embodiment, and a detailed description thereof will be omitted.

The first locking member 4500 includes a second sensing member 4519, a second locking latch 4502a, a third locking latch 4502b, a first projection guide 4507, a cable connection 4501, The first locking engagement portion 4502 and the unlocking portion contact portion 4515 are formed in order from the left side to the right side.

The second sensing member 4519 is formed to protrude rearward at the lower left end of the first locking member 4500. Both sides of the second sensing member 4519 are formed to be inclined and are smoothly sensed by the third sensor 4905 and the fourth sensor 4907 provided as a limit switch.

The third sensor 4905 and the fourth sensor 4907 are disposed on the upper portion of the second sensing member 4519 and installed in the third housing 4150.

The second locking part 4502a and the third locking part 4502b are vertically formed and protrude rearward. The third lock catching portion 4502b is disposed on the right side of the second lock catching portion 4502a. Therefore, the first lock member contact portion 4651 of the drive lever 4650, which will be described below, is disposed in the space formed between the second lock engagement portion 4502a and the third lock engagement portion 4502b, And the upper and lower portions are formed to be opened. Thereby, the first lock member contact portion 4651 can be moved up and down with respect to the first lock member 4500. [

As such, the first locking member 4500 is in contact with both sides of the driving lever 4650.

The cable connection portion 4501 is formed to protrude rearward at the right upper end of the rear surface of the first lock member 4500.

The cable connection part 4501 is formed with a slot through which the cable installation part 4811 with the cable 4810 is passed. The elongated hole is formed so as to penetrate in the vertical direction, and is formed so as to be inclined so that the right side is disposed rearward than the left side.

The cable 4810 and the cable installation portion 4811 are moved forward while being guided by the cable installation guide 4121 formed to protrude rearward from the rear surface of the first housing 4110. Also, the cable mounting portion 4811 moves forward in the slot, and the first locking member 4500 moves to the right. Through this process, the first locking member 4500 is moved in the locked state via the cable 4810. [

The unlocking portion contact portion 4515 is formed so as to protrude forward at the right upper end of the front surface of the first lock member 4500. [ The unlocking portion contact portion 4515 is formed with an unlocking portion inserting groove into which the rear end of the unlocking portion 4560 is inserted and guided. The unlocking portion insertion groove is formed so that the front and right sides are opened. Accordingly, in this embodiment, when the first lever is pulled once as in the first embodiment, the first lock member 4500 is unlocked.

The first locking member 4500 is stably positioned at the locked position or the unlocked position by the stopper slot and the stopper projection inserted into the stopper slot as in the first embodiment. The stopper slot is disposed at a lower portion of the cable connector 4501.

The first locking part 4502 is formed to protrude downward at the lower right end of the first locking part 4500.

The first locking latch 4502 is disposed below the stopper slot.

The first locking latch 4502 is inserted into the cut-out portion of the key connector of the key connector 4550 as in the first embodiment. The key connector 4550 is disposed on the lower right side of the housing.

The second lock member 4700 is slidable in the left and right direction to the housing so that the door can not be opened even if the first lever is pulled.

The second locking member 4700 is horizontally disposed in the left-right direction on the rear surface of the first housing 4110.

The second locking member 4700 is disposed on the upper portion of the first confining member 4500.

At least one of the first locking member 4500 and the second locking member 4700 is moved after the first external force is applied, and then the second external force is applied in the same direction as the primary external force And is returned to the home position. In this embodiment, when the second locking member 4700 is applied with a first external force, the moved position is maintained, and then, the second locking member 4700 is installed in the housing to return to the original position when the secondary external force is applied in the same direction as the primary external force . Alternatively, the first locking member may also be installed with the second locking member 4700. [ Thus, the second locking member 4700 is in contact with one side of the driving lever 4650. [ Alternatively, the second locking member may be provided to be in contact with both sides of the driving lever, such as the first locking member.

Since the second locking member 4700 is installed in the housing in the first embodiment, a detailed description thereof will be omitted.

The cam cover 4730, the third sensing member 4740, the driving portion locking protrusion 4710 and the second projection guide portion are sequentially formed on the second locking member 4700 from the left side to the right side.

The cam cover 4730 is disposed on the left side of the second lock member 4700. [

The locking guide member is rotatably installed on the left front side of the second lock member 4700. [

A third sensing member 4740 is formed on the right side of the cam cover 4730. The third sensing member 4740 is formed on the rear surface of the second locking member 4700 and protrudes rearward. An eighth sensor 4902 sensing the third sensing member 4740 is installed in the third housing 4150. The eighth sensor 4902 senses whether or not it is locked through the second locking member 4700. The third sensing member 4740 is provided as a limit switch and is disposed on the right side of the third sensing member 4740. The third sensing member 4740 is disposed behind the second locking member 4700.

The driving part locking protrusion 4710 is formed to protrude rearward from the rear surface of the second locking member 4700. The driving part locking protrusion 4710 is disposed below the third sensing member 4740.

The second projection guide portion is formed to protrude forward from the front surface of the second locking member 4700.

A flow space portion 4711 is formed in the intermediate lower portion of the second lock member 4700 so that the drive lever 4650 can flow with respect to the second lock member 4700. The flow space portion 4711 is disposed on the right side of the drive portion locking projection 4710. The flow space portion 4711 is formed to open rearward and rightward. The position of the second locking member 4700 can be maintained even if the driving lever 4650 is moved with respect to the second locking member 4700 by this flow space portion 4711. [

The flow space portion 4711 is formed longer than the gap between the second lock receiving portion 4502a and the third lock receiving portion 4502b. That is, the stroke of the drive lever 4650 with respect to the first lock member 4500 is smaller than the stroke of the drive lever 4650 with respect to the second lock member 4700.

The driving unit 4600 moves the first locking member 4500 and the second locking member 4700 to the left or right.

The driving unit 4600 is installed on the rear surface of the first housing 4110 so as to be disposed below the first locking member 4500.

The driving unit 4600 includes a motor 4610, a gear 4613 rotated by the motor 4610, a main gear 4630 rotated by engagement with the gear 4613, And a driving lever 4650 which is moved to move the first locking member 4500 and the second locking member 4700.

The axis of the motor 4610 is arranged in the left-right direction. The motor 4610 is disposed to be spaced from the left end of the housing.

The gear 4613 is disposed in the left-right direction and is provided with a worm.

The main gear 4630 is disposed in the front-rear direction and is provided with a worm gear.

The lower end of the first lock member 4500 is formed by cutting the shaft insertion portion into which the shaft of the main gear 4630 is inserted.

A lever engaging portion 4639 for moving the driving lever 4650 is formed on the front surface of the main gear 4630 so as to protrude forward.

The drive lever 4650 is rotatably installed on the shaft of the main gear 4630. Alternatively, the drive lever may be installed to be movable in the lateral direction to the housing.

The drive lever 4650 is formed with a first lock member contact portion 4651 which is in contact with the first lock member 4500 and a second lock member contact portion 4652 which is in contact with the second lock member 4700.

The first lock member contact portion 4651 and the second lock member contact portion 4652 are formed to protrude forward and are formed into a cylindrical shape.

The first lock member contact portion 4651 is disposed at the middle portion of the drive lever 4650 and the second lock member contact portion 4652 is disposed at the end of the drive lever 4650.

The first lock member contact portion 4651 is disposed on the left side of the rotational center of the drive lever 4650 and the second lock member contact portion 4652 is disposed on the right side of the rotational center of the drive lever 4650. As such, the first and second lock member contact portions 4651 and 4652 are spaced apart from each other in the direction in which the first and second lock members 4500 and 4700 slide. That is, the first lock member contact portion 4651 and the second lock member contact portion 4652 are staggered in the left-right direction.

Hereinafter, the locking or unlocking operation of the door through the first and second locking members 4500 and 4700 will be described.

&Lt; door lock through first lock member and door lock through second lock member >

54, when the door lock through the first lock member 4500 and the door unlock through the second lock member 4700 are inputted in the state in which the door lock is released (the basic state), the drive unit 4600 Is operated.

The operation of the motor 4610 causes the main gear 4630 to rotate. The drive lever 4650 is hooked on the lever engagement portion 4639 of the rotated main gear 4630 so that the drive lever 4650 is rotated clockwise when viewed from the front. After the main gear 4630 is rotated as described above, the main gear 4630 returns to its home position (the state where the height of the lever engagement portion is lowest).

The third locking part 4502b is caught by the first locking part contact part 4651 and the first locking part 4500 moves to the right side as the driving lever 4650 rotates. At this time, as shown in FIG. 55, the second lock member contact portion 4652 comes out of the flow space portion 4711 through the right opening portion of the flow space portion 4711. Therefore, even if the first locking member 4500 is moved to the right, the position of the second locking member 4700 is maintained in the door unlocked state.

<Door Unlocking via First Locking Member and Door Locking via Second Locking Member>

When the door unlocking through the first locking member 4500 and the door locking through the second locking member 4700 are inputted, the motor 4610 of the driving unit 4600 is operated.

The operation of the motor 4610 causes the main gear 4630 to rotate. The drive lever 4650 is hooked on the lever engagement portion 4639 of the rotating main gear 4630 so that the drive lever 4650 is rotated counterclockwise when viewed from the front.

The second lock portion 4502a is caught by the first lock member contact portion 4651 in accordance with the rotation of the drive lever 4650 so that the first lock member 4500 moves to the left. Further, the driving portion locking protrusion 4710 is caught by the second locking member contact portion 4652, and the second locking member 4700 is pushed to the left. This causes the second lock member 4700 to move to the right side. Thus, as shown in FIG. 56, the second locking member 4700 is in the door locking position.

Further, when the second lock member 4700 is moved to the right, the drive member locking protrusion 4710 pushes the second lock member contact portion 4652 to the right, and the drive lever 4650 is placed in the basic state, The door 4500 is in the door unlock position.

&Lt; door lock through first lock member and door lock through second lock member >

When the door lock through the first locking member 4500 and the door lock through the second locking member 4700 are inputted, the motor 4610 of the driving unit 4600 is operated.

The operation of the motor 4610 causes the main gear 4630 to rotate. The drive lever 4650 is hooked on the lever engagement portion 4639 of the rotating main gear 4630 so that the drive lever 4650 is rotated counterclockwise when viewed from the front.

The second lock portion 4502a is caught by the first lock member contact portion 4651 in accordance with the rotation of the drive lever 4650 so that the first lock member 4500 moves to the left. Further, the driving portion locking protrusion 4710 is caught by the second locking member contact portion 4652, and the second locking member 4700 is pushed to the left. This causes the second lock member 4700 to move to the right side. Thus, as shown in Figure 57, the second locking member 4700 is in the door locking position.

Then, the main gear 4630 is reversely rotated so that the drive lever 4650 is rotated clockwise when viewed from the front. This causes the first locking member 4500 to move to the right side, so that the first locking member 4500 is also in the door locking position.

As such, the vehicle side door latch of the present embodiment can independently operate the first and second lock members 4500 and 4700 through one drive unit 4600, thereby reducing the number of components and making the apparatus compact.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims .

DESCRIPTION OF REFERENCE NUMERALS
1100: Housing
1200: latch
1300: Main locking member
1400: Sub-
1450:
1500: first locking member
1560:
1600:
1700: second locking member
1770:
1800: Door lever connection
1900: PCB

Claims (14)

housing;
A latch rotatably installed in the housing;
A main locking member for locking the latch;
A sub-locking member including a first sub-locking member which is moved by a first lever and a second sub-locking member which is moved by a second lever;
A connecting means for allowing the main locking member and the sub locking member to move together or to move only the sub locking member;
A first locking member moving the connecting means to separate the first and second sub-locking members and the main locking member;
A second locking member moving the connecting means to separate the first sub-locking member and the main locking member;
And an unlocking portion for moving the first locking member to release the locking when the first sub-locking member is moved,
The second locking member is provided with a lock releasing interlocking portion for rotating or moving the lock releasing portion so that the first sub locking member and the lock releasing portion are interlocked with each other or that the first sub locking member and the lock releasing portion are interlocked The door latch system comprising:
The method according to claim 1,
Wherein the lock releasing interlocking portion is formed with a guide groove for guiding the unlocking portion.
3. The method according to claim 1 or 2,
Wherein the lock releasing portion is rotatably installed in the housing,
Wherein the second locking member is slidably installed in the housing,
Wherein the first sub-locking member is formed with an unlocking portion depressing portion for depressing the unlocking portion.
3. The method according to claim 1 or 2,
A first driving unit for driving the first locking member, a second driving unit for driving the second locking member, and a control unit for controlling the first and second driving units,
And when the deadlock is inputted, the control unit operates the first locking member and the second locking member.
3. The method according to claim 1 or 2,
The cable for moving the first locking member is provided with a button,
Wherein the button is disposed proximate to the first lever.
3. The method according to claim 1 or 2,
And the first lever is connected to a cable for moving the first locking member.
3. The method according to claim 1 or 2,
The latch being disposed in front of the housing,
Further comprising a door lever connection portion connecting the first and second levers and the sub-locking member,
And the door lever connection portion is disposed at a front upper portion of the housing.
3. The method according to claim 1 or 2,
The latch being disposed in front of the housing,
And a wire withdrawing portion is formed at a rear upper portion of the housing.
3. The method according to claim 1 or 2,
Further comprising a cable for moving said first locking member,
And the cable is drawn to the rear upper portion of the housing.
housing;
A latch rotatably installed in the housing;
A door closing member which locks the latch and is connected to the first lever and the second lever;
A first lock member slidably installed in the housing to prevent the door from being opened even when the second lever is pulled out;
A second lock member slidably installed in the housing, the second lock member preventing the door from being opened even when the first lever is pulled out;
And a driving unit for moving the first locking member and the second locking member,
Wherein the drive unit includes a motor and a drive lever that is rotated or moved by the motor to move the first lock member and the second lock member,
Wherein the second locking member is formed with a fluid space portion for allowing the driving lever to flow with respect to the second locking member.
11. The method of claim 10,
At least one of the first locking member and the second locking member is held in a moved position after being moved when a first external force is applied, and then, when the second external force is applied in the same direction as the primary external force, Is mounted on the vehicle body.
The method according to claim 10 or 11,
And the drive lever is rotated by the motor.
13. The method of claim 12,
Further comprising a gear rotated through the motor,
Wherein the gear is formed with a lever engagement portion for engaging with the drive lever.
The method according to claim 10 or 11,
Wherein the drive lever is formed with a first lock member contact portion that contacts the first lock member and a second lock member contact portion that contacts the second lock member,
Wherein the first lock member contact portion and the second lock member contact portion are spaced apart in a direction in which the first lock member or the second lock member is slid.

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