KR20170135782A - Latch system for door - Google Patents

Abstract

The present invention relates to a latch system for a door. Specifically, the latch system for a door includes: a hanging lever unit installed to rotate in one among a main locking member and a sliding member and having a hanging protrusion; a hanging protrusion formed on the other among the main locking member and the sliding member, wherein the hanging protrusion is hung on the hanging protrusion; and a locking plate installed in the housing to slide and rotating the hanging lever unit. The locking plate has a lever guide unit, and a guide bar is formed in the hanging lever unit. So, the lever guide unit guides the guide bar, and the hanging lever unit rotates. When the hanging lever unit is hung on the hanging protrusion by sliding of the locking plate, the main locking member and the sliding member slide together. When the hanging lever unit is separated from the hanging protrusion by the sliding of the locking plate, only the sliding member slides. Therefore, a structure of connecting the sliding member and the main locking member is simplified, and durability of the latch system for a door can be improved.

Description

[0001] Latch system for door [0002]

[0001] The present invention relates to a door latch system, and more particularly, to a door latch system in which a locking lever portion rotatably installed on any one of a main locking member and a sliding member and formed with a locking protrusion, And a locking plate slidably installed on the housing to pivot the locking lever unit. The locking plate is provided with a lever guide portion. The locking lever portion is formed with a guide bar, When the guide portion is guided by the guide portion, the latch lever portion is pivoted, and when the latch lever portion is caught by the latching jaw by the sliding of the locking plate, the main locking member and the sliding member slide together, , And the sliding member is slid only when the buckle is detached from the latching jaw.

Generally, a door latch system is used to open or close a car door or lock or unlock a car door, as disclosed in Korean Patent Laid-Open Publication No. 10-535053.

However, in such a conventional door latch system, unnecessary force is applied to various parts such as a latch connected to the door lever when the door lever is pulled in a state in which the door is kept locked. Therefore, So that the maintenance cost can be excessively increased.

In addition, such a conventional door latch system has a problem in that the structure is complicated.

Korean Patent Registration No. 535053 Korean Patent Application No. 2015-0069453

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door latch system in which the structure connecting the main locking member and the sliding member is simplified and the durability of the apparatus is improved.

According to an aspect of the present invention, there is provided a door latch system including a housing, a latch rotatably mounted on the housing, a main locking member slidably installed in the housing to lock the latch, A locking lever portion which is slidably installed and is disposed on one side of the main locking member, a locking lever portion rotatably installed on one of the main locking member and the sliding member and formed with a locking projection, And a locking plate slidably installed on the housing to pivot the locking lever, wherein the locking plate is formed with a lever guide portion, A guide bar is formed on the lever guide portion, When the locking lever portion is pushed by the locking lever by sliding the locking plate, the main locking member and the sliding member are slid together by guiding the base guide bar, and by sliding the locking plate And only the sliding member is slid when the locking lever portion is detached from the locking protrusion.

The engaging lever shaft of the engaging lever portion may be formed in a vertical direction. The lever guide portion may protrude toward the engaging lever portion. An inclined surface may be formed on a surface of the lever guide portion that contacts the guide bar.

And a latch for rotating the latch is formed on the driving portion, the latch portion is slidably installed on the driving portion in the front-rear direction, and the main locking member is provided with a latching portion for pressing the latch portion And a latching portion return spring for returning the latching portion to the original position. The latching portion is formed to protrude outwardly from the latch, and the latching portion pressing portion is reinforced with a pressing portion of a metal material The member can be inserted.

Wherein a manual locking member is rotatably mounted on the housing, the manual locking member is provided with a first locking portion engaged with the sliding member and a second locking portion engaged with the locking plate, and the first locking portion and the second locking portion, And the engaging portion may be disposed so as to be spaced apart in the circumferential direction.

Further comprising a pivoting member that pivots by the latch to slide the main locking member, at least a part of the pivoting member is disposed in front of the main locking member, the sliding member is disposed behind the main locking member, And a sliding member insertion groove into which the sliding member is inserted may be formed in a rear portion of the main locking member.

And a locking driving part for sliding the locking plate, wherein the locking driving part includes a motor, and the locking driving part and the locking plate can be connected through a rack and a pinion.

The locking driving unit includes a motor, and the motor and the locking plate may be connected to each other through a worm and a worm gear.

The motor may be disposed below the locking plate, and the axis of the motor may be disposed in the front-rear direction.

The motor is disposed on the upper portion of the locking plate, and the axis of the motor can be arranged in the vertical direction.

Wherein the lock driving unit includes a motor and a main gear rotated by the motor, wherein the motor and the main gear are connected to each other through a worm gear engaged with the worm, the motor being disposed on the upper portion of the locking plate, The axis of the motor can be arranged in the left-right direction.

And a driving unit for rotating the latch, wherein the driving unit includes a motor and a main gear rotated by a motor, the motor and the main gear are connected via a spur gear, And the motor can be arranged in the longitudinal direction of the shaft.

And a driving unit for rotating the latch, wherein the driving unit includes a motor and a main gear rotated by the motor, wherein the motor and the main gear include a first worm and a first worm The worm gear, the second worm installed on the first worm gear, and the second worm gear engaged with the second worm.

The main gear is rotated about an axis arranged in the front-rear direction, and the axis of the motor can be arranged in the left-right direction.

The main gear may be rotated around an axis disposed in the front-rear direction, and may be disposed in the front-rear direction of the axis of the motor.

Wherein the lock driving unit includes a motor and a main gear rotated by the motor, wherein the motor and the main gear are engaged with the worm and the worm, And the intermediate gear installed in the worm gear.

A driving unit for rotating the latch, and a child-locking member movably installed in the housing, wherein the driving unit can move the child-locking member.

The driving unit includes a main gear, and the main gear is provided with a latch for rotating the latch, and the main gear is provided with a first latching part and a second latching part for sliding the child-locking latch.

The protrusion guide portion is formed on the child-locking member, and a child-lock protrusion is formed on the protrusion lever portion. The protrusion guide portion guides the child-lock protrusion, so that the locking lever portion can be rotated.

The child car seat according to claim 1, further comprising: a child car lock member movably installed in the housing; and a child car lock driving member for moving the child car lock member, wherein the child car lock member is provided with a projection guide portion, , The rotation of the latch lever part can be performed as the projection guide part guides the child lock projection.

And a child-lock driving unit for moving the child-locking member, wherein the child-locking member and the child-locking driving unit can be connected to each other through the child-rack and the child pinion.

And a child-lock driving unit for moving the child-locking member. The child-locking member and the child-locking driving unit may be connected to each other through the child worm and the child worm gear.

The direction changing unit includes a direction switching housing and a switching lever rotatably installed in the direction switching housing. The direction switching unit includes a direction switching housing and a switching lever rotatably installed in the direction switching housing. The knob is rotatably connected to one side of the switching lever, the unlocking cable is rotatably connected to the other side of the switching lever, and the rotation axis of the switching lever is disposed between one side and the other side of the switching lever have.

The direction changing housing is provided with a first guide groove for guiding the knob and a second guide groove for guiding the release cable. The direction switching housing is provided with a switch lever A slot that can be moved can be formed.

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

A locking lever portion rotatably installed on one of the main locking member and the sliding member and formed with a locking protrusion; a locking protrusion formed on the other of the main locking member and the sliding member to receive the locking protrusion; The locking plate is provided with a lever guide portion. A guide bar is formed on the locking lever portion. When the lever guide portion guides the guide bar, the locking lever portion is rotated The main locking member and the sliding member are slid together when the locking lever portion is caught by the locking protrusion by the sliding of the locking plate and when the locking lever portion is separated from the locking protrusion by the sliding of the locking plate, Sliding portion Is only sliding, the structure for connecting the main locking member and the sliding member becomes simple, and also improve durability of the device.

The lever guide portion of the latch lever portion is formed to protrude toward the latch lever portion. The lever guide portion is formed with an inclined surface on the surface contacting the guide bar, thereby simplifying the structure Durability is also improved.

And a latch for rotating the latch is formed on the driving portion, the latch portion is slidably installed on the driving portion in the front-rear direction, and the main locking member is provided with a latching portion for pressing the latch portion And a latching portion return spring for returning the latching portion to the original position. The latching portion is protruded outwardly from the latching portion. When the door is closed through the driving portion, or after the door is closed Even if the driving part fails, if the door lever is pulled, the door can be opened manually.

Further, a pressing portion reinforcement member made of a metal material is inserted into the engaging portion pressing portion, and the rigidity of the engaging portion pressing portion is increased.

Wherein a manual locking member is rotatably mounted on the housing, the manual locking member is provided with a first locking portion engaged with the sliding member and a second locking portion engaged with the locking plate, and the first locking portion and the second locking portion, When the user pulls the door lever once in the door lock state, the door is unlocked and the door is opened by pulling the door in lever once more.

Further comprising a pivoting member that pivots by the latch to slide the main locking member, at least a part of the pivoting member being disposed in front of the main locking member, the sliding member being disposed behind the main locking member, The strength of the latch system can be improved and the width of the door latch system can be further reduced, so that it can be commonly applied to doors of various designs.

A sliding member insertion groove into which the sliding member is inserted is formed in the rear of the main locking member so that the sliding member can be guided when the sliding member is moved in the left and right direction and the width and width of the door latch system can be further reduced, The rigidity of the locking member can also be maintained.

Wherein the lock driving unit and the locking plate are connected to each other through a rack and a pinion or a worm by a linear worm gear (rack), so that even if the locking driving unit fails, The locking plate can be moved through a cable or the like, and safety is improved. On the other hand, when the shaft of the motor is arranged perpendicularly to the axis of the main gear and is connected through the worm gear, it is difficult to reverse the worm gear due to the external force when the motor is broken.

The motor is disposed below the locking plate, and the axis of the motor is arranged in the front-rear direction, so that interference with other members of the door can be minimized.

The motor is disposed on the upper portion of the locking plate, and the axis of the motor is arranged in the vertical direction, so that the front-rear width of the door latch system can be minimized.

Wherein the lock driving unit includes a motor and a main gear rotated by the motor, wherein the motor and the main gear are connected to each other through a worm gear engaged with the worm, the motor being disposed on the upper portion of the locking plate, The axis of the motor is arranged in the left-right direction, so that the structure of the door latch system can be simplified while keeping the system compact.

Wherein the driving unit includes a motor, the latch is rotated by the motor, and the motor and the latch are connected to each other through a plurality of spur gears, so that the driving unit fails When the user opens the door while pulling the door lever, the latch can be rotated in the door opening direction by the striker, thereby improving the safety.

The main gear is rotated about an axis disposed in the front-rear direction, and the motor is arranged in the front-rear direction so that the structure can be simplified, and the spur gear can be smoothly reversed when the motor fails.

And a driving unit for rotating the latch, wherein the driving unit includes a motor and a main gear rotated by the motor, wherein the motor and the main gear include a first worm and a first worm The worm gear, the second worm installed on the first worm gear, and the second worm gear engaged with the second worm, so that the speed of the motor is greatly reduced, so that the motor is smoothly driven when the door is closed through the motor, . In addition, when the door is closed and the speed is reduced, the door can be manually opened if the body or clothes get caught in the door.

Wherein the main gear is rotated about an axis arranged in the front-rear direction and the axis of the motor is arranged in the left-right direction, or the main gear is rotated about an axis arranged in the front- The structure of the apparatus is simplified.

The apparatus may further include a driving unit for rotating the latch, and a child-locking member movably installed in the housing. The driving unit moves the child-locking member to move the child-locking member through a button or the like connected to the driving unit While at the same time keeping the device simple.

The lock plate is provided with an unlocking cable, and a direction switching unit is provided between the unlocking cable and the knob. When the door latch system is installed on the door, the PCB and the motor can be disposed on the upper portion, The PCB and the motor are prevented from being flooded.

The direction switching unit includes a direction switching housing and a switching lever rotatably installed in the direction switching housing. The knob is rotatably connected to one side of the switching lever, and the other side of the switching lever is connected to the unlocking cable And the rotation axis of the switching lever is disposed between one side and the other side of the switching lever so that the configuration of the direction switching unit can be simplified and the direction switching unit can be kept compact, Can be installed.

The direction changing housing is provided with a first guide groove for guiding the knob and a second guide groove for guiding the release cable. The direction switching housing is provided with a switch lever The movable direction of the knob can be smoothly switched, and the direction changing portion can be kept more compact.

1 is a perspective view of a door latch system according to a first embodiment of the present invention;
2 is an exploded perspective view of the door latch system according to the first embodiment of the present invention;
3 is a front view of the door latch system according to the first embodiment of the present invention in a state in which the second housing is removed.
4 is a rear view of the door latch system according to the first embodiment of the present invention with the third housing removed.
5 is a rear view of the door latch system according to the first embodiment of the present invention with the third housing removed.
6 is a front perspective view and a rear perspective view (below) of the first housing of the door latch system according to the first embodiment of the present invention;
7 is a front perspective view (top) and a rear perspective view (bottom) of a third housing of the door latch system according to the first embodiment of the present invention;
8 is a front perspective view and a rear perspective view (below) of the second housing of the door latch system according to the first embodiment of the present invention;
9 is a latch perspective view of a door latch system according to a first embodiment of the present invention;
10 is a front perspective view (top) and a rear perspective view (bottom) of a main locking member of a door latch system according to the first embodiment of the present invention.
11 is a perspective view of the latch lever portion of the door latch system according to the first embodiment of the present invention.
12 is a front view and a rear perspective view of the sliding member of the door latch system according to the first embodiment of the present invention.
13 is a front view (top) and a rear perspective view (bottom) of a locking plate of a door latch system according to the first embodiment of the present invention;
FIG. 14 is a front perspective view and a rear perspective view of a driving unit of the door latch system according to the first embodiment of the present invention. FIG.
15 is a rear perspective view of the main gear of the door latch system according to the first embodiment of the present invention.
16 is a perspective view of main gear disassembly of the door latch system according to the first embodiment of the present invention.
17 is a front perspective view (top) and a rear perspective view (bottom) of a child locking member of a door latch system according to the first embodiment of the present invention;
18 is a front view of the door latch system according to the first embodiment of the present invention with the second housing and the main locking member and the child locking member removed.
19 is a front view (housing is omitted) showing the first step of the door closing operation of the door latch system according to the first embodiment of the present invention;
FIG. 20 is a front view (housing is omitted) showing a second step of the door closing operation of the door latch system according to the first embodiment of the present invention; FIG.
21 is a front view (a housing is omitted) showing a third step of the door closing operation of the door latch system according to the first embodiment of the present invention;
FIG. 22 is a front view (housing is omitted) showing the fourth step of the door closing operation of the door latch system according to the first embodiment of the present invention; FIG.
23 is a front view (upper) and AA sectional view (lower) (housing and latch are omitted) showing the first step of the door locking operation of the door latch system according to the first embodiment of the present invention;
FIG. 24 is a partial perspective view (the main locking member is omitted) showing a state in which the latch lever portion is caught by the sliding member in the door locking operation of the door latch system according to the first embodiment of the present invention;
25 is a front view (top) and AA section (below) (housing and latches omitted) showing the second stage of the door locking operation of the door latch system according to the first embodiment of the present invention;
26 is a partial perspective view showing a state in which the latch lever portion is moved rearward by the lever guide portion in the door locking operation of the door latch system according to the first embodiment of the present invention;
27 is a front view (top) and AA sectional view (below) (housing and latches omitted) showing the third step of the door locking operation of the door latch system according to the first embodiment of the present invention;
28 is a front view (upper) and AA sectional view (lower) (housing and latch are omitted) showing the door unlocking operation of the door latch system according to the first embodiment of the present invention;
29 is a partial cross-sectional view showing a first step of a door unlocking operation using a lever which is a door of a door latch system according to the first embodiment of the present invention;
30 is a partial cross-sectional view showing a second step of a door unlocking operation using a lever which is a door of the door latch system according to the first embodiment of the present invention;
31 is a partial cross-sectional view showing a third step of a door unlocking operation using a lever which is a door of the door latch system according to the first embodiment of the present invention;
32 is a front view and a partial plan view showing a first step of an inner door locking operation using a child locking member of a door latch system according to the first embodiment of the present invention;
33 is a front view and a partial plan view showing a second step of an inner door locking operation using a child locking member of a door latch system according to the first embodiment of the present invention;
FIG. 34 is a partial front view and a partial rear perspective view (below) showing the first stage of the door opening operation in case of a motor failure in the door latch system according to the first embodiment of the present invention; FIG.
35 is a partial front view and a partial rear perspective view (below) showing the second stage of the door opening operation in the event of a motor failure in the door latch system according to the first embodiment of the present invention;
36 is a partial front view and a partial rear perspective view (below) showing the third stage of the door opening operation in case of a motor failure in the door latch system according to the first embodiment of the present invention;
37 is a view showing a state in which the door latch system according to the first embodiment of the present invention is mounted on a vehicle door.
FIG. 38 is a plan view of a door latch system according to the first embodiment of the present invention (a state mounted on a vehicle). FIG.
FIG. 39 is a perspective view of the door latch system according to the first embodiment of the present invention viewed from the rear; FIG.
40 is a rear view (door locking state) in a state in which the third housing is removed from the door latch system according to the second embodiment of the present invention;
41 is a rear view (door unlocked state) in a state in which the third housing is removed from the door latch system according to the second embodiment of the present invention;
42 is a front view of the door latch system according to the third embodiment of the present invention in a state in which the second housing is removed;
43 is a rear view of the door latch system according to the third embodiment of the present invention with the third housing removed;
44 is a rear view of the door latch system according to the fourth embodiment of the present invention with the third housing removed;
45 is a rear perspective view of the door latch system according to the fourth embodiment of the present invention in which the third housing is removed (removal of the metal part of the main gear);
46 is a rear perspective view of the door latch system according to the fourth embodiment of the present invention with the third housing removed and the main gear and the child lock member separated;
47 is a perspective view of a child locking member of a door latch system according to a fourth embodiment of the present invention;
48 is a partial rear view showing a child-locked state of the door latch system according to the fourth embodiment of the present invention;
49 is a partial plan view showing a child-locked state of the door latch system according to the fourth embodiment of the present invention;
50 is a partial rear view of a child-unlocked state of the door latch system according to the fourth embodiment of the present invention;
51 is a partial plan view showing a child unlocking state of the door latch system according to the fourth embodiment of the present invention;
52 is a front view of the door latch system according to the fifth embodiment of the present invention with the second housing removed;
53 is a rear view (motor omitted) of the door latch system according to the fifth embodiment of the present invention with the third housing removed;
54 is a partial front view showing a door opening process in case of a motor failure in the door latch system according to the fifth embodiment of the present invention;
55 is a front view of the door latch system according to the sixth embodiment of the present invention with the second housing removed;
56 is a rear view of the door latch system according to the sixth embodiment of the present invention with the third housing removed;
57 is a rear perspective view (locking plate and main gear separation) in a state in which the third housing is removed from the door latch system according to the sixth embodiment of the present invention;
58 is a front view of a locking plate and a main gear of a door latch system according to a sixth embodiment of the present invention;
FIG. 59 is a rear view showing a door lock state (upper), a door unlocked state (middle), a state in which the main gear is returned (lower) after the door is unlocked, Schematic of the 1,2,3 wire.
60 is a partial cross-sectional view of a door latch system according to a seventh embodiment of the present invention;
61 is a rear view of the door latch system according to the eighth embodiment of the present invention with the third housing removed;
62 is a rear perspective view of the door latch system according to the ninth embodiment of the present invention with the third housing removed;
63 is a rear view of the door latch system according to the tenth embodiment of the present invention with the third housing removed;
FIG. 64 is a rear perspective view of a child locking member of a door latch system according to a tenth embodiment of the present invention; FIG.
65 is a partial horizontal sectional view (a state viewed from above) of the door latch system according to the tenth embodiment of the present invention;
FIG. 66 is a partial horizontal sectional view (a state viewed from below) of a door latch system according to a tenth embodiment of the present invention; FIG.
67 is a partial plan view showing a child-locked state of the door latch system according to the tenth embodiment of the present invention;
68 is a partial plan view showing a child unlocking state of the door latch system according to the tenth embodiment of the present invention;
69 is a rear view of the door latch system according to the eleventh embodiment of the present invention with the third housing removed;
70 is a rear perspective view illustrating a direction switching unit of a door latch system according to an eleventh embodiment of the present invention;
71 is a state diagram showing a state in which a door latch system according to an eleventh embodiment of the present invention is installed in a vehicle door;
72 is a rear view of the door latch system according to the twelfth embodiment of the present invention with the third housing removed;
73 is a state diagram showing a state in which a door latch system according to a twelfth embodiment of the present invention is installed in a vehicle door;

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.

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

1 to 39, the door latch system 5 of the first embodiment includes a housing 1100, a latch 1200 rotatably installed in the housing 1100, A main locking member 1300 slidably installed on the main locking member 1300 to lock the latch 1200 and a sliding member installed slidably in the housing 1100 and disposed on one side of the main locking member 1300 A locking lever portion 1450 rotatably installed on one of the main locking member 1300 and the sliding member 1400 and formed with a locking protrusion 1455, A locking protrusion 1405 formed on the other of the sliding member 1400 and engaged with the locking protrusion 1455 so as to be slidable with respect to the housing 1100 to lock the locking lever portion 1450 Plate (1500), said locking plate The lever 1500 is formed with a lever guide portion 1507. A guide bar 1457 is formed on the latch lever portion 1450 so that the lever guide portion 1507 guides the guide bar 1457, When the locking lever portion 1450 is pivoted and the locking lever portion 1450 is hooked on the locking protrusion 1405 by the sliding of the locking plate 1500, the main locking member 1300 and the sliding member 1400 And the sliding member 1400 is slid only when the locking lever portion 1450 is separated from the locking protrusion 1405 by the sliding of the locking plate 1500. [

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.

6, a striker insertion slot 1105 is formed in the upper portion and the front portion of the housing 1100 to receive the striker 1101 connected to the vehicle body.

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

6, the first housing 1110 is formed in a block shape and includes a latch seating groove 1111 on which a latch 1200 described below is mounted, a main locking member 1300, And a locking member seating groove 1112 on which the sliding member 1400 is seated are formed.

The first housing 1110 may be formed of a plastic material and molded by injection molding. The second housing 1130 may be formed of a material having high strength such as an iron plate.

The front and the top of the latch seating groove 1111 are formed to be opened and communicated 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. Described first return spring 1250 is inserted into the spring insertion groove 1113 so that the other end of the first return spring 1250 can be 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 locking member seating groove 1112 is formed in the left-right direction so as to communicate with the latch seating groove 1111.

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

The locking member receiving groove 1112 is formed so that the main locking member 1300 and the sliding member 1400 can slide to the left and right.

The first housing 1110 is formed to open at the rear of a portion where the sliding member 1400 is seated in the locking member seating groove 1112 and a lever guide portion 1507 to be described below is inserted.

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 locking member seating groove 1112.

The rod guide groove 1116 is disposed at the lower portion of 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 locking member seating groove 1112 and the rod guide groove 1116 in the lateral direction.

The first sensing member insertion groove 1128 is disposed at the lower left of the locking 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 locking member seating groove 1112 and communicate with the locking member seating groove 1112. The first spring seating groove 1117 and the second spring seating groove 1119 are communicated with a right side of a draw-out hole through which a wire connected to a door-lever or a door-out lever is drawn out.

The manual locking member insertion hole 1118 in which the manual locking member 1560 is inserted is inserted between the first spring seating groove 1117 and the second spring seating groove 1119 in the front and rear direction . The manual locking member insertion hole 1118 communicates with the locking member seating groove 1112.

A child-locking-member seating groove 1122 on which a child-locking member 1700, which will be described below, is seated is formed in communication with the locking-member seating groove 1112 in front of the first housing 1110.

The child-locking-member seating groove 1122 is disposed on the upper portion of the locking-member seating groove 1112. The child-locking-member seating groove 1122 is in communication with the locking-member seating groove 1112.

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

The bumper member insertion groove 1123 disposed at the lower portion is formed to be lower than the height of the bumper member 1360.

The bumper member insertion groove 1123 disposed at the upper portion is open at the top and front and the right portion is in communication with the latch seating groove 1111.

The bumper member insertion groove 1123 disposed at the upper portion is formed so that the rear diameter is larger than the front diameter. The bumper member 1360 disposed at the upper portion is formed to correspond to the shape of the bumper member insertion groove 1123 disposed at the upper portion. Therefore, when the bumper member 1360 is inserted into the bumper member insertion groove 1123 disposed at the upper portion, the bumper member 1360 is not released in the forward and backward direction after the insertion. Further, after the assembly is completed, the upper portion of the bumper member insertion groove 1123 disposed at the upper portion is blocked by the second housing 1130 described below. As described above, the bumper member insertion groove 1123 disposed at the upper portion is formed to facilitate assembly.

The bumper member 1360 disposed at the lower portion supports the latch 1200 when the latch 1200 is in the locked state by the main locking member 1300 so that no clearance is generated and the bumper member 1360 The latch 1200 supports the latch 1200 when the latch 1200 is released from the engagement with the main locking member 1300 and rotates counterclockwise by the elastic force of the first return spring 1250, , And prevents play, noise and vibration.

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.

A concave portion 1124 is formed on the upper surface of the first housing 1110.

A manual locking member receiving groove 1125 is formed on the lower right side of the first housing 1110. The manual locking member receiving groove 1125 communicates with the manual locking member insertion hole 1118.

A manual locking member shaft 1561 to be described later is inserted into the manual locking member receiving groove 1125. [

A locking hook engaging portion 1126 for fastening with the third housing 1150 is formed on the upper surface and the rear side of the first housing 1110.

The first key-connecting portion 1127 is formed at the lower middle portion of the rear surface of the first housing 1110 so that the upper and lower portions thereof 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.

A locking plate seating groove on which a locking plate 1500 described below is mounted is elongated in the left and right direction at a lower portion of the rear surface of the first housing 1110. The locking plate seating groove is formed to communicate with the locking groove guide groove 1115. A sub gear seating groove on which a sub gear 1620 described below is mounted is formed on the right side of the rear surface of the first housing 1110. 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 sub gear seating groove. The first motor seating groove is formed to communicate with the sub gear seating groove. The first housing 1110 has a first PC fit-in groove formed at a lower portion of the locking plate seat groove for receiving a front portion of the PCB 1900 described below. The first PCB fitting groove is formed to communicate with the first sensing member insertion groove 1128.

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. Therefore, the fifth sensor 1911 is prevented 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 and the sensors (the fifth sensor 1911 and the sixth sensor 1910) or the driving unit (the motor 1610) is inserted into the first housing 1110. As a result, the wire length can be reduced.

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

As shown in Fig. 8, the second housing 1130 includes a vertical plate-shaped vertical member 1131 and a horizontal member 1132 bent backward from the upper end of the vertical member 1131.

As shown in FIG. 1, the vertical member 1131 is formed with a shaft insertion hole through which a latch pivot shaft 1230 provided with a rivet is inserted, in the front-rear direction.

The vertical member 1131 is recessed from front to back around the shaft insertion hole to form a first protrusion 1135 and a second protrusion 1136. The first protrusion 1135 and the second protrusion 1136 protrude rearward from other parts of the rear surface of the vertical member 1131.

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 vertical member 1131 is formed with an operation projection slot 1134 through which the child-locking operation protrusion 1710, which will be described later, is inserted into the vertical member 1131 in the front-rear direction. The operation protrusion long hole 1134 is elongated in the left-right direction than the left-right width of the child-locking operation protrusion 1710.

A plurality of installation holes are formed in 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. Due to such an installation hole, the door latch system 5 of this embodiment can be easily and firmly installed on the door 1. [

1, a second housing 1130 is provided with a rivet inserting hole into which a first return spring latching shaft 1251, a pivot shaft 1380, and a pivoting spring latching shaft 1391 are inserted, 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 vertical support member 1138 which protrudes rearward is formed on the right side of the second housing 1130 to support the right side of the first housing 1110 from which the door lever connection portion 1800 is drawn out. 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.

1, the vertical member 1131 is installed on the front surface of the first housing 1110 through a plurality of bolts 1133 and the horizontal member 1132 is mounted on the upper surface of the first housing 1110 And is disposed on the concave portion 1124 formed. A plurality of bolts 1133 are disposed on both sides of the striker insertion slot 1105 and on both sides of the lower portion of the first housing 1110 and the second housing 1130, respectively.

Striker insertion grooves 1105 are formed across the vertical member 1131 and the horizontal member 1132. [

As shown in FIG. 7, the third housing 1150 is in the shape of a rectangular tube with a space formed therein. The third housing 1150 is formed so that the front is open.

A second PCB fitting recess 1154 is formed in the third housing 1150 to receive the rear of the PCB 1900. In the third housing 1150, a second motor seating groove 1151 on which the rear of the motor 1610 is seated is formed.

Locking hooks 1153 are formed on the upper and both sides of the third housing 1150.

Each of the locking hooks 1153 is fastened to a corresponding one of the locking hooks 1126 formed on the first housing 1110. As a result, the first housing 1110 and the third housing 1150 are engaged. In addition, the first housing 1110 and the third housing 1150 are coupled through bolts or the like.

And a second key connector installation part 1152 is formed below the third housing 1150.

A key connector 1550 to be described later is installed in the first key connector installing portion 1127 and the second key connector installing portion 1152 of the first housing 1110.

On the rear surface of the third housing 1150, a depression 1155 recessed in the left and right direction is formed on the left side.

The PCB 1900 is installed in the housing 1100 by being inserted into the first PCB fitting groove and the second PCB fitting groove 1154. The PCB 1900 is horizontally disposed at a lower portion inside the housing 1100.

A first sensor 1901, a second sensor 1903, a third sensor 1905, and a fourth sensor 1907 are installed on the PCB 1900. The first sensor 1901, the second sensor 1903, the third sensor 1905, and the fourth sensor 1907 are provided as sensors for sensing magnets.

The first sensor 1901 and the second sensor 1903 are arranged on the same line in the left and right direction and the third sensor 1905 and the fourth sensor 1907 are arranged on the same line in the left and right direction. When viewed from the front, the first sensor 1901 is disposed on the left side of the second sensor 1903. When viewed from the front, the third sensor 1905 is disposed on the left side of the fourth sensor 1907.

The first sensor 1901 and the second sensor 1903 are sensors that are involved in the opening and closing of the door 1 by sensing the movement of the first sensing unit 1351 formed on the main locking member 1300.

The third sensor 1905 and the fourth sensor 1907 are sensors for sensing the movement of the second sensing unit 1521 formed on the locking plate 1500 and engaging in locking and unlocking the door 1.

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.

As shown in FIG. 9, 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.

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 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, A fourth surface 1209 extending from the upper right end of the third surface 1207 and a third surface 1207 formed in an arc shape extending from the fourth surface 1207 to surround the striker 1101, 1209, and a fifth surface 1211 formed to be inclined.

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

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.

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.

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.

One end of the first return spring 1250 is engaged with the first return spring latching shaft 1251 of the second housing 1130 and the intermediate portion is wound around the latch pivot shaft 1230 and the other end is inserted into the spring fitting portion 1213 Lt; / RTI &gt;

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

10, the main locking member 1300 is slidably installed in a locking member seating groove 1112 formed in the first housing 1110. As shown in FIG.

The main locking member 1300 includes a body 1310, a horizontal bar 1340, a locking portion pressing portion 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.

The body 1310 includes a first portion 1311 and a second portion 1313 that is stepped on the first portion 1311 so that the front surface is disposed forward of the front surface of the first portion 1311. [

The first portion 1311 constitutes the upper left portion of the body 1310 and the second portion 1313 constitutes the remainder of the body 1310. [

At the upper portion of the second portion 1313, there is formed a pivot member insertion groove 1317 into which a part of a pivot member 1370 to be described later is inserted.

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 and the right side surface forming the tilt member insertion groove 1317 are formed to be inclined so as to become higher from the left side to the right side.

The left side surface forming the pivot member insertion groove 1317 is shorter than the right side surface forming the pivot member insertion groove 1317. [

The lower surface defining the pivot member insertion groove 1317 is formed so as to be inclined lower from the left to the right.

The left side of the body 1310 is formed to be bent or inclined so as not to interfere with the rotated latch 1200.

The lower portion of the pivoting member 1370 is disposed in front of the first portion 1311 of the main locking member 1300. [ Thus, at least a portion of the tiltable member 1370 is disposed in front of the main locking member 1300. [

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.

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. [

Further, a rotation spring 1390 for returning the tiltable member 1370 may be provided.

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

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

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

The lower left portion of the locking portion 1371 protrudes to the left.

A latch insertion groove into which a part of an end of the latch 1200 is inserted is formed in a lower portion of the locking portion 1371. The latch insertion groove is formed such that a lower portion thereof is opened.

The locking portion 1371 serves to lock (lock) the position of the latch 1200. [

A latch insertion groove is formed in a lower portion of the locking portion 1371 to insert a part of the end of the latch 1200 when the door is closed (the first surface 1203). The latch insertion groove is formed such that a lower portion thereof is opened.

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. [

The reason for this is that when the tilting member 1370 slides the main locking member 1300 by the rotation of the latch 1200, the insertion protrusion 1373 of the tilting member 1370 is disengaged from the tilting member insertion groove 1317 It is for the purpose not to do.

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.

It is preferable that the lateral width of the insertion protrusion 1373 is formed to be narrower than the lateral width of the pivot member insertion groove 1317. [

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. [

On the right rear surface of the body 1310, a sliding member insertion groove 1315 into which the sliding member 1400 is inserted is formed. The sliding member insertion groove 1315 is formed in the right and left direction and is formed so that the right side is opened. The sliding member insertion groove 1315 allows the sliding member 1400 to be guided in the lateral direction.

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 communicates with the sliding member insertion groove 1315. [

Thus, the body 1310 is formed, and the sliding member 1400 is disposed behind the main locking member 1300. [ Accordingly, the door latch system 5 can be made compact and can be used for doors 1 of various designs.

On the rear surface of the body 1310, a locking lever portion 1450 is rotatably installed. As described above, the engaging lever portion may be formed on the sliding member.

11, 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 can selectively slide the main locking member 1300 and a later-described sliding member 1400 together or slide only the sliding member 1400 It is the connecting means to be installed.

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.

A guide bar 1457 is formed on the right side of the first engaging lever portion 1450a and the second engaging lever portion 1450b.

The first guide bar 1457a formed on the first engaging lever portion 1450a is formed to protrude downward and the second guide bar 1457b formed on the second engaging lever portion 1450b protrudes upward.

The first guide bar 1457a and the second guide bar 1457b are guided by the inclined surface 1511 formed in the locking plate 1500 to be described later and are engaged with the first engaging lever portion 1450a and the second engaging lever portion 1450b, Respectively.

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

The child lock protrusion 1453 is formed for interlocking between the child lock member 1700 and the first engagement 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 engaging lever portions 1450a and 1450b and the second and third engaging lever portions 1460a and 1460b are engaged with the first and second guide bars 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.

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.

The horizontal bar 1340 is formed long from the lower left of the body 1310 to the left.

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.

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 first sensor 1901 or a second sensor 1903 disposed at a position corresponding to the first sensing unit 1351 on the PCB 1900. The control unit (not shown) receives the detection signal and controls the motor 1610 to be described later.

On the right rear side of the main locking member 1300, a sliding member 1400 is disposed.

12, the sliding member 1400 is inserted into the sliding member insertion groove 1315 of the main locking member 1300. As shown in Fig. Accordingly, the sliding member 1400 is slidably installed in the main locking member 1300 in the left-right direction.

Like the main locking member 1300, the sliding member 1400 is slidably installed in a locking member seating groove 1112 formed in the first housing 1110.

A door lever connection portion 1800 is connected to the sliding member 1400.

The sliding member 1400 includes a first sliding member 1400a and a second sliding member 1400b in a block shape. The first sliding member 1400a and the second sliding member 1400b are rounded at the upper left and lower right edges and can smoothly slide left and right with respect to the main locking member 1300. [

The door lever connecting portion 1800 includes a lever connecting portion 1800a which is a door connected to a door-lever (not shown) and a door out lever connecting portion 1800b connected to a door out lever (not shown). The door-lever connecting portion 1800a and the door-out-lever connecting portion 1800b are provided by wires.

The first sliding member 1400a is disposed on the upper portion of the second sliding member 1400b.

The first sliding member 1400a is connected to a lever-connecting portion 1800a which is a door.

The first sliding member 1400a includes a first engaging member receiving groove 1401a, a first spring engaging projection 1402a, a first engaging jaw 1405a, and a manual locking member pressing portion 1407. [

The second sliding member 1400b includes a second locking member seating groove 1401b, a second spring fitting protrusion 1402b, and a second locking protrusion 1405b.

The first engaging member receiving groove 1401a and the second engaging member receiving groove 1401b are opened forward.

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 latching members 1801a and 1801b are prevented from being separated from the sliding member 1400 even when the door-lever or the door-out lever is pulled out.

The first latching member receiving groove 1401a is seated with a first latching member 1801a formed at an end of the lever connecting portion 1800a which is a door.

The first latching member 1801a of the lever connecting portion 1800a which is a door positioned in the first latching member receiving groove 1401a is not released forward by the body 1310 of the main locking member 1300. [

A second latching member 1801b formed at an end of the door out lever connection portion 1800b is seated in the second latching member mounting groove 1401b.

The second latching member 1801b of the door out lever connection portion 1800b located in the second latching member mounting groove 1401b does not fall forward by the body 1310 of the main locking member 1300. [

The first outflow hole 1403a is formed at the right end of the first anchor member receiving groove 1401a so as to communicate with the first outflow hole 1403a through which the lever connecting portion 1800a as a door is drawn out. The first latching member 1801a does not come out of the first extraction hole 1403a even if the door-lever coupling portion 1800a is pulled to the right.

Accordingly, the first sliding member 1400a is slid to the right as the door-lever connecting portion 1800a is pulled to the right.

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

Accordingly, the second sliding member 1400b is slid to the right as the door out lever connection portion 1800b is pulled to the right.

The first spring 1803a is fitted in the lever connecting portion 1800a, which is a door, close to the first latching member 1801a.

First and second spring fitting protrusions 1402a and 1402b are formed on the right end of the first and second sliding members 1400a and 1400b at the upper and lower portions of the first and second drawing 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 sliding member 1400a and the first spring seating groove 1117 of the first housing 1110. [ The first spring 1803a slides the first sliding member 1400a slid to the right side by an external force to the left side by the elastic restoring force of the first spring 1803a when the external force is removed, .

The second spring 1803b is fitted in the door out lever connection portion 1800b.

The second spring 1803b is disposed between the right end of the second sliding member 1400b and the second spring seating groove 1119 of the first housing 1110. [ The second spring 1803b slides the second sliding member 1400b slid to the right side by an external force to the left by the elastic restoring force of the second spring 1803b when the external force is removed, .

The sliding member 1400 is formed with a latching protrusion 1405 for latching the latching protrusion 1455 of the latching lever 1450. The latching jaw 1405 includes a first latching jaw 1405a and a second latching jaw 1405b.

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

The first stopping protrusion 1405a and the second stopping protrusion 1405b are formed so that the left rear of the first sliding member 1400a and the second sliding 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.

The first locking lever portion 1450a, the second locking lever portion 1450b, the first locking protrusion 1405a and the second locking protrusion 1405b are formed so that the main locking member 1300 and the sliding member 1400 slide together Or only the sliding member 1400 is slid.

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, Or the door out lever (not shown) is pulled, the main locking member 1300 and the sliding member 1400 slide together to the left.

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, When the door out lever (not shown) or the door out lever (not shown) is pulled, the main locking member 1300 is in place and only the sliding member 1400 is slid to the left.

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

The first sliding member 1400a has a manual locking member pressing part 1407 which extends from the lower right side to the right side.

The manual locking member pressing part 1407 is provided as a horizontal plate and the front surface protrudes from the front surface of the first sliding member 1400a.

The manual locking member pressing portion 1407 is positioned between the first spring seating groove 1117 and the second spring seating groove 1119 of the first housing 1110 and slides left and right simultaneously with the first sliding member 1400a .

The manual locking member pressing portion 1407 comes into contact with the first locking portion 1563 of the manual locking member 1560 to be described later.

As shown in FIG. 13, the locking plate 1500 is formed long in the left and right direction.

The locking plate 1500 is slidably installed on the lower portion of the rear surface of the first housing 1110. The locking plate 1500 rotates the latch lever part 1450.

The locking plate 1500 includes a unlocking cable connection portion 1501, a lever guide portion 1507, a manual locking guide slot 1515 and a second sensing member 1519.

The unlocking cable connection portion 1501 is located at the leftmost end of the locking plate 1500.

When an unlocking cable 1810 is connected to the left end of the unlocking cable connection part 1501 to actuate a knob (not shown) or the like, the unlocking cable 1810 is pulled to the left or right side, .

On the rear surface of the unlocking cable connection part 1501, a locking member seating groove on which the end of the unlocking cable 1810 is seated is formed on the rear surface. Therefore, it becomes easier to assemble the unlocking cable 1810 to the locking plate 1500. [

An engaging member of the unlocking cable 1810 is also formed in a vertically long cylindrical shape.

The locking plate 1500 is formed with a folding member 1503 which is formed to protrude rearward at a lower right portion of the unlocking cable connection portion 1501. [

The bending member 1503 has a horizontal plate shape.

A locking protrusion 1506 protrudes downward from the lower portion of the bending member 1503.

The locking protrusion 1506 is a circular protrusion and is for manually sliding the locking plate 1500 by the key connector 1550. [

The key connector 1550 includes a head 1551 having a cross-shaped groove, a wing 1553 having a key-connected cutout 1555 that is partially cut away from a disk having a diameter larger than the diameter of the head 1551, And an upper protrusion 1557 protruding upward from the center of the portion 1553.

The key connector 1550 is rotatably installed at a lower portion of the housing 1100 and a locking protrusion 1506 is located in the key connector cutout 1555 of the key connector 1550.

At this time, if the head 1551 of the key connector 1550 is manually rotated using a key or a tool such as a screwdriver, the locking plate 1500 can be slid to the left or right even if the driving unit 1600 is not operated.

More specifically, when the head 1551 of the key connector 1550 is rotated, the locking protrusions 1506 located in the key connecting cutouts 1555 are pushed by both sides of the keyconnect cutouts 1555, Left and right.

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

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

A main gear engaging portion 1502 is formed on the upper portion of the locking plate 1500 so as to protrude upwardly between the unlocking cable connecting portion 1501 and the engaging projection 1506.

Further, the locking plate 1500 may have a plate-shaped reinforcing rib formed on the right side of the main gear engaging portion 1502 to prevent the locking plate 1500 from being damaged during operation.

When the main gear 1630 is rotated by the operation of the motor 1610 described below, the main gear engaging portion 1502 is engaged with the first engaging portion 1633 and the second engaging portion 1635 formed in the main gear 1630, Is pushed. Thus, the locking plate 1500 moves to the left or right.

The main gear 1630 is disposed on the upper portion of the main gear engaging portion 1502 so that only the main gear engaging portion 1502 is engaged without engaging the other portion of the locking plate 1500 when the main gear 1630 rotates.

The locking plate 1500 has a lever guide portion 1507 formed on the right side of the bending member 1503.

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

The lever guide portion 1507 is formed in a strip shape, and is formed to be bent to the right after protruding forward. Therefore, an insertion space 1509 through which the guide bar 1457 is inserted is formed between the lever guide 1507 and the front surface of the locking plate 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 lever guide portion 1507 (the surface that contacts the guide bar 1457), thereby simplifying the structure and improving durability. The front and rear thickness of the right side of the lever guide portion 1507 becomes thicker toward the left side due to the inclined surface 1511.

The upper portion of the lever guide portion 1507 guides the first guide bar 1457a of the first engaging lever portion 1450a and the lower portion of the lever guide portion 1507 engages with the second guide of the second engaging lever portion 1450b Guides the bar 1457b.

As the lever guide portion 1507 guides the guide bar 1457 forward or backward, the engaging lever portion 1450 is rotated so that the engaging lever portion 1450 is engaged with the engaging jaw 1405, the main locking member 1300 and the sliding member 1400 are slid together (door unlocking), and when the locking lever 1500 is released from the locking protrusion 1405 by the sliding of the locking plate 1500 Only the sliding member 1400 is slid (door-locked).

When the first guide bar 1457a and the second guide bar 1457b are disposed in the insertion space 1509 by the lever guide portion 1507, the first engagement lever portion 1450a and the second engagement portion The lever portion 1450b is separated from the first locking protrusion 1405a of the first sliding member 1400a and the second locking protrusion 1405b of the second sliding member 1400b so that the door 1 is locked to be.

When the first guide bar 1457a and the second guide bar 1457b are separated from the insertion space 1509, the first engaging lever portion 1450a and the second engaging lever portion 1450b are engaged with the first sliding member The door 1 is in the unlocked state in a state in which the first engaging jaw 1405a of the first sliding member 1400a and the second engaging jaw 1405b of the second sliding member 1400b are engaged.

The lever guide portion 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 locking plate 1500 to lock the door 1, (1) to the unlocked state.

In the locking plate 1500, a manual locking guide slot 1515 is formed in the left-right direction on the upper right side. The manual locking guide slot 1515 is formed so that the front and rear sides and the right side are opened.

The front surface of the locking plate 1500 is formed with a cover close to the manual locking guide slot 1515 so that the strength of the locking plate 1500 can be improved.

The second locking portion 1562 of the manual locking member 1560, which will be described later, is inserted into the manual locking guide slot 1515.

The manual locking member 1560 is provided at the center And an axial hole through which the manual locking member shaft 1561 passes is formed in a vertical direction.

The manual locking member shaft 1561 is seated in the manual locking member receiving groove 1125.

The rear side of the manual locking member seating groove 1125 is blocked by the manual locking member cover 1564 disposed behind the manual locking member shaft 1561 so that the manual locking member shaft 1561 is retracted from the manual locking member seating groove 1125 It does not fall off. The manual locking member cover 1564 is formed with a second engaging portion drawing-out hole through which the second engaging portion 1562 is drawn out.

The manual locking member 1560 is inserted into the manual locking member insertion hole 1118. Therefore, the manual locking member 1560 is rotatably installed in the first housing 1110.

A first latching portion 1563 is formed on the front side of the manual locking member 1560 to engage with the manual locking member pressing portion 1407 of the first sliding member 1400a and a second latching portion 1563 is provided on the rear side of the manual locking member 1560, A portion 1562 is formed.

As such, the first engaging portion 1563 and the second engaging portion 1562 are spaced apart in the circumferential direction. The edges of the first engaging portion 1563 and the second engaging portion 1562 are rounded.

When the user depresses the door lever once in the door locked state, the door is unlocked and the door 1 is opened by pulling the door-lever once more.

The locking plate 1500 is formed such that the second sensing member 1519 protrudes downward below the engaging projection 1506 and the lever guide portion 1507. 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. [

A first stopper protrusion 1107 is formed to protrude from one of the locking plate 1500 and the housing 1100 and a first stop spring 1570 which is elastically deformed by the first stopper protrusion 1107 Respectively.

The first stopper protrusion 1107 is formed on the rear surface of the first housing 1110 so as to protrude rearward and the first stop spring 1570 is provided on the right rear surface of the locking plate 1500.

A stopper slot 1571 through which the first stopper protrusion 1107 passes is formed in the right lower portion of the locking plate 1500 in the left-right direction.

On the rear surface of the locking plate 1500, a first ring 1573 to which one side of the first stop spring 1570 is fitted is formed to protrude rearward on the left side of the stopper slot 1571.

On the rear surface of the locking plate 1500, a second ring 1572 is fitted to the right of the stopper slot 1571 so that the other end (end) of the first stop spring 1570 is inserted.

The first stop spring 1570 is formed by bending a middle portion of the metal wire. Accordingly, the first stop spring 1570 is formed in a generally pin shape. Thus, the first stop spring 1570 is provided as a release spring.

The first stop spring 1570 has a first fitting portion 1578 formed at one side thereof to be fitted to the first hook 1573. The first fitting portion 1578 is formed in a circular shape.

The first stopper 1570 has a first stopper 1577 formed on the right side of the first fitting portion 1578 and formed in an arc shape such that the upper and lower portions correspond to the shape of the first stopper protrusion 1107. The first stopper projection 1107 is seated on the first stop 1577 when the locking plate 1500 is in the door lock position.

The first stop spring 1570 has a second stop 1575 formed on the right side of the first stop 1577 so as to correspond to the shape of the first stopper protrusion 1107. The first stopper projection 1107 is seated on the second stop 1575 when the locking plate 1500 is in the door lock release position.

The first stop spring 1570 is elastically deformed between the first stopper 1577 and the second stopper 1575 so that the upper and lower widths thereof are smaller than the first stopper 1577 and the second stopper 1575. [ Is formed. That is, the vertical width of the elastic deformation portion 1576 is smaller than the vertical width of the first stopper projection 1107. The elastic deformed portion 1576 is formed such that the upper portion thereof is concave downward and the lower portion thereof is convexly curved upward.

A spring end 1574 is formed at the right end of the first stop spring 1570. The spring end portion 1574 is formed to have a narrower vertical width than the second stop portion 1575. The spring end portion 1574 is horizontally arranged in the left-right direction and formed in a straight line shape.

The first stopper projection 1107 is formed into a cylindrical shape in cross section.

Therefore, in order for the locking plate 1500 to move from the connecting position to the disconnection position (or move in the opposite direction), the elastic deformation portion 1576 is moved after being elastically deformed so as to spread apart. That is, in order to move the locking plate 1500 from the door unlocking position to the door locking position or move the locking plate 1500 from the door locking position to the door unlocking position, It is necessary to slide the locking plate 1500 with a force enough to elastically deform the locking plate 1576.

Further, when the locking plate 1500 is slid, the elastic deformation portion 1576 of the first stop spring 1570 contacts the first stopper projection 1107 to generate frictional force.

Therefore, even when an external impact is applied when the locking plate 1500 is in the connection position or the disconnection position, the locking plate 1500 is prevented from being detached from the connection position or the disconnection position. That is, the locking plate 1500 is prevented from malfunctioning due to an external impact.

The present embodiment further includes a driving portion 1600 for rotating the latch 1200 or sliding the locking plate 1500. [

14, the driving unit 1600 includes a motor 1610, a sub gear 1620 rotated by the motor 1610, and a main gear 1630 rotated by engagement with the sub gear 1620 .

The 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 driving unit 1600 is disposed between the rear surface of the first housing 1110 and the front surface of the third housing 1150.

The motor 1610 receives a signal from the PCB 1900 and is connected to the PCB 1900 so as to generate a driving force or to stop the generation of a driving force.

The motor 1610 is arranged such 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).

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

The sub gear 1620 is coaxially connected with a gear having a small diameter and a gear having a large diameter. The sub gear 1620 is formed integrally with a gear having a small diameter and a gear having a large diameter.

The worm 1613 is engaged with the worm gear having a large diameter of the sub gear 1620.

The main gear 1630 meshes with the intermediate spur gear having a small diameter of the sub gear 1620.

The main gear 1630 is provided as a spur gear, and the driving force of the motor 1610 is transmitted through the sub gear 1620.

15 and 16, 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.

The main gear 1630 includes a plastic portion 1634 and a metal portion 1642 to be inserted into the plastic portion 1634. The main gear 1630 is formed by inserting the metal portion 1642 into the plastic portion 1634. [

The plastic portion 1634 includes a plastic plate portion 1645 formed in a plate shape and a gear portion 1632 formed to protrude rearward from a part of the outer circumferential surface of the plastic plate portion 1645.

The plastic plate portion 1645 is formed in a disk shape, and the insert projection 1637 is formed to protrude rearward on the rear surface. Four insert projections 1637 are formed around the insertion holes 1636 into which the main gear shaft 1114 is inserted.

A latching portion 1631 for rotating the latch 1200 is formed at the lower left of the front surface of the plastic plate portion 1645. The latching portion 1631 is formed in a bar shape and protrudes forward.

The latching portion 1631 is slidably mounted on the outer cylinder 1649 protruding forward from the front surface of the plastic plate portion 1645 in the front-rear direction.

The outer cylinder 1649 is formed so that the hollow is hollow and the front is open. On the left and right sides of the outer cylinder 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 latching portion 1631 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 on the front left side. Due to the inclined surface, the engaging portion pressing portion 1330 can smoothly press the head portion 1631a.

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 outer cylinder 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 outer cylinder 1649, a latching return spring 1648 for returning 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.

If the lever 1600 or the door-out lever is pulled out even if the driving unit 1600 fails after the door 1 is closed or closed through the driving unit 1600 due to the latching unit 1631, (1).

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 main locking member 1300.

A fifth sensor sensing portion 1641 is formed on the outer circumferential surface of the plastic plate portion 1645 so as to be disposed behind the latching portion 1631. The fifth sensor sensing unit 1641 is configured to press the fifth sensor 1911 provided as a limit switch when the main gear 1630 returns to the basic position. Thus, after the main gear 1630 is rotated to move the locking plate 1500 or to move the latch 1200, it can be returned to its original position (basic position) again.

A lower portion of the plastic portion 1634 is cut. The main gear engagement portion 1502 is inserted into the cut space of the plastic portion 1634. Thus, a first engaging portion 1633 and a second engaging portion 1635 for sliding the locking plate 1500 are formed on the lower portion of the plastic portion 1634. The first engaging portion 1633 is formed to be continuous to the lower end of the gear portion 1632.

The first engaging portion 1633 and the second engaging portion 1635 are spaced apart from each other.

The first engaging portion 1633 and the second engaging portion 1635 slide the main gear engaging portion 1502 in accordance with the rotation of the main gear 1630 to slide the locking plate 1500 to the left or right.

Further, the main gear engagement portion 1502 is disposed in front of the metal portion 1642.

The metal portion 1642 includes a plate portion 1644 in the form of a plate and a plurality of protrusions 1639 protruding forwardly around the plate portion 1644.

The plate portion 1644 is formed in a disk shape. In the central portion of the plate portion 1644, an insert projection groove 1646 is formed around the insertion hole 1636 into which the latch rotation shaft 1230 is inserted. An insert projection 1637 is inserted into the insert projection groove 1646.

The protrusion 1639 is inserted into the gear portion 1632 of the plastic portion 1634 and the engaging portion 1631. Therefore, the durability of the gear portion 1632 and the engaging portion 1631 can be further improved.

The protruding portion 1639 inserted into the gear portion 1632 is divided into a plurality of portions and the protruding portion 1639 disposed inside the engaging portion 1631 is formed longer than the protruding portion 1639 in the gear portion 1632 do.

The opening and closing of the door 1 using the latch 1200 and the locking and unlocking of the door 1 using the locking plate 1500 can be performed by one driving unit 1600, And the manufacturing cost can be reduced.

17, the child-locking member 1700 is slidably installed in the housing 1100 so as to be disposed on the upper side of the sliding member 1400. As shown in Fig.

More specifically, the child-locking member 1700 is disposed on the top of the first sliding member 1400a.

The child-locking member 1700 is formed in a plate shape and is seated in the child-locking-member seating groove 1122 of the first housing 1110. Therefore, the child-locking member 1700 is slidable in the left-right direction with respect to the housing 1100. [

The child locking member 1700 is projected rearward to form a locking projection 1722. [ The left side surface of the locking projection 1722 is inclined.

A child-locking operation protrusion 1710 is formed on the right side of the front side of the child-locking member 1700 so as to protrude forward. The child-locking operation protrusion 1710 is inserted into the operation projection elongated hole 1134 formed in the second housing 1130.

When the child-locking member 1700 is moved to the left, the child-lock projection 1453 of the first locking lever portion 1450a is pushed backward by the locking projection 1722. [ Thus, when the right side of the first engaging lever portion 1450a is moved rearward, the first engaging lever portion 1450a is disengaged from the first engaging jaw 1405a. Further, when the child-locking member 1700 is moved to the right, the first engaging lever portion 1450a is returned to its original state. Therefore, the first engaging lever portion 1450a engages with the first engaging jaw 1405a.

In this manner, the first latching lever portion 1450a can be caught or released from the first latching jaw 1405a by the movement of the child-locking member 1700. [

A second stopper projection 1721 is formed to protrude from one of the child-locking member 1700 and the first housing 1110 and a second stop spring 1721 for applying an elastic force to the second stopper projection 1721. [ 1730 are installed.

The second stopper protrusion 1721 is formed to protrude rearward on the right upper rear surface of the child lock member 1700 and the second stop spring 1730 is provided on the front surface of the first housing 1110. [ The second stop spring 1730 is disposed behind the child locking member 1700.

18, the front surface of the first housing 1110 is provided with a stop spring receiving groove 1104 communicating with the child-locking-member receiving groove 1122 and disposed behind the child-bearing-member receiving groove 1122, Direction. The stop spring seating groove 1104 is formed so as to correspond to the shape of the second stop spring 1730. The portion where the elastic deformation portion 1732 described below is seated is formed by the upper and lower widths of the elastic deformation portion 1732 So that the elastic deforming portion 1732 can be elastically deformed.

The second stop spring 1730 is formed by bending a middle portion of the metal wire. Accordingly, the second stop spring 1730 is formed in a generally pin shape. Thus, the second stop spring 1730 is provided as a release spring.

The second stop spring 1730 is formed at its right end with a first stopper 1731 formed in an arc shape corresponding to the shape of the second stopper protrusion 1721. The second stopper projection 1721 is seated on the first stopping portion 1731 when the child locking member 1700 is in the child lock releasing position.

The second stop spring 1730 is formed on the left side with a second stopper 1733 having upper and lower arc-shaped portions. The second stopper projection 1721 is seated on the second stop 1733 when the child locking member 1700 is in the child lock position.

The second stop spring 1730 is elastically deformed between the first stopper 1731 and the second stopper 1733 so that the upper and lower widths thereof are smaller than the first stopper 1731 and the second stopper 1733. [ Is formed. That is, the vertical width of the elastic deformation portion 1732 is smaller than the vertical width of the second stopper projection 1721. The elastic deforming portion 1732 is horizontally arranged in the left-right direction and formed in a straight line shape.

The second stopper projection 1721 is formed into a cylindrical shape in cross section.

Accordingly, the second stop spring 1730 is resiliently deformed by the second stopper projection 1721 when the child locking member 1700 is in at least one portion between the door lock position and the door lock position. That is, in order to move the child locking member 1700 to the door unlocking position and the door locking position, or to move the child locking member 1700 from the door locking position to the door unlocking position, It is necessary to slide the child-locking member 1700 with a force enough to deform it.

When sliding the childproof locking member 1700, the elastic deformed portion 1732 of the second stop spring 1730 is brought into contact with the second stopper projection 1721 to generate frictional force.

Therefore, even when an external impact is applied to the child-locking member 1700 when the child-locking member 1700 is in the connection position or the disconnection position, the child-locking member 1700 is prevented from being detached from the connection position or the disconnection position. That is, the child locking member 1700 is prevented from malfunctioning due to an external impact.

A spring end 1734 is formed at the left end of the second stop spring 1730. The spring end 1734 is formed to be narrower in the vertical width than the elastic deformation portion 1732. The spring end portions 1734 are horizontally arranged in the left-right direction and are formed in a linear shape.

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

This is explained in the following order.

Pull the door lever (not shown) of the door 1 in the locked state.

At this time, since the locking lever 1450 is not engaged with the sliding member 1400, the sliding member 1400 does not affect the main locking member 1300 along the pulled door lever (not shown) Sliding on the opposite side of the 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 portion 1450 rotates forward to be connected to the sliding 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 sliding member 1400 which is spaced apart from the main locking member 1300, The engaging lever portion 1450 is inserted into the spaced space between the locking member 1300 and the sliding member 1400. [

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

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

The sensors installed on the PCB 1900 of the door latch system 5 of the present invention are connected to a room lamp (not shown) and a dashboard (not shown) so that the user can easily know the opening and closing states of the door 1 have.

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

<Door closed>

19, when the user closes the door 1 in the opened state, the striker 1101 installed on the vehicle body presses 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 control unit recognizes that the door 1 is closed but the motor 1610 is not yet operated. At this time, as shown in FIG. 20, the outer circumferential surface of the latch 1200 pushes the locking portion 1371 of the main locking member 1300, and the main locking member 1300 is pushed to the right. Accordingly, the first sensing unit 1351 is not sensed by the first sensor 1901. [

21, the latch 1200 is rotated further in the clockwise direction by the force of the user closing the door 1, so that the locking portion 1371 is inserted into the auxiliary locking groove, 1351 are sensed by the first sensor 1901.

Thus, when both the sixth sensor 1910 and the first sensor 1901 are detected, the control unit operates the motor 1610.

That is, after the striker 1101 presses the latch 1200, the motor 1200 is operated after the latch 1200 is rotated clockwise by a predetermined angle.

This makes it possible to prevent an error that the motor 1610 is operated when the door 1 is opened.

The operation of the motor 1610 causes the latching portion 1631 provided on the front surface of the main gear 1630 to rotate clockwise to push the protrusion 1215 of the latch 1200 clockwise, The locking portion 1371 of the pivoting member 1370 is inserted into the locking groove 1201 of the door 1 and the door 1 is closed.

At this time, the locking portion 1371 of the pivoting member 1370 is rotated in the clockwise direction by the elastic force of the pivoting spring 1390 to be located in the locking groove 1201, 1200 are inserted.

The locking part 1371 is inserted into the locking groove 1201 so that the first sensing part 1351 can be moved to the first sensor 1901 by the motor 1610, Lt; / RTI &gt; When the first sensing unit 1351 is sensed by the first sensor 1901 while the motor 1610 is operating to close the door, the controller determines that the engagement portion 1631 has been rotated to the door closing position, And the engaging portion 1631 is rotated in the counterclockwise direction through the engaging portion 1610. At this time, as shown in FIG. 22, the control unit operates the motor 1610 until the fifth sensor sensing unit 1641 presses the fifth sensor 1911. Thus, the main gear 1630 is returned to the basic position. As described above, after the main gear 1630 is closed or the door lock operation is performed, the main gear 1630 is returned to the basic position so that the driver can manually release the door lock and the door close.

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 door lever (not shown) As the first sensor 1351 is sensed by the second sensor 1903, the motor 1610 is rotated reversely to move the latch 1631 to the unlocked position (the default position) so that the door can be opened.

<Door lock>

As shown in Figs. 23 and 27, when the door 1 in the unlocked state is in a state in which the key / lock button / knob / door out lever sensor / speed And the operation to be locked due to the setting by the threshold value or the like.

When the door lock via the motor 1610 is input, the motor 1610 is operated to rotate the main gear 1630 counterclockwise as shown in Fig.

When the main gear 1630 rotates in the counterclockwise direction, the second engaging portion 1635 on the rear side of the main gear 1630 pushes the main gear engaging portion 1502 of the locking plate 1500 to rotate the locking plate 1500 .

26, the first engaging lever portion 1450a and the second engaging lever portion 1450b are engaged with the inclined surface 1511 of the lever guide portion 1507. In this case, The locking protrusion 1455 is moved backward and the locking protrusion 1455 is released from the first sliding member 1400a and the second sliding member 1400b respectively. As a result, when the door 1 is locked and the door lever (not shown) is pulled, the force is not transmitted to the main locking member 1300.

The second latching portion 1635 pushes the locking plate 1500 until the second sensor 1521 of the locking plate 1500 is sensed by the fourth sensor 1907, Lt; / RTI &gt;

<Unlock the door>

The operation in which the locked door 1 is unlocked due to the setting by the key / lever lock button / knob / door out lever sensor / vehicle speed threshold, etc. will be described.

When the door unlocking via the motor 1610 is input, the motor 1610 is operated to rotate the main gear 1630 clockwise as shown in Fig.

When the main gear 1630 rotates clockwise, the first engaging portion 1633 on the rear side of the main gear 1630 pushes the main gear engaging portion 1502 to slide the locking plate 1500.

At this time, the locking plate 1500 is moved to the left, and the first engaging lever portion 1450a and the second engaging lever portion 1450b come out of the insertion space 1509 of the lever guide portion 1507, The locking projection 1455 is moved forward by the spring 1460 and the locking projection 1455 is engaged with the first sliding member 1400a and the second sliding 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 first latching part 1633 pushes the locking plate 1500 until the second sensing part 1521 of the locking plate 1500 is sensed by the third sensor 1905 and returns to the original position.

&Lt; Unlocking the inner door using the door in lever &

As shown in Fig. 29, when the door 1 is in the locked state, the first sliding member 1400a is slid to the right when the door-lever (not shown) is pulled once as shown in Fig.

At this time, the manual locking member pressing portion 1407 of the first sliding member 1400a slides to the right and pushes the first locking portion 1563 of the manual locking member 1560 to the right. As a result, the second latching portion 1562 of the manual locking member 1560 is moved to the left by the principle of the leverage. In addition, the second latching portion 1562 moves the locking plate 1500 to the left.

The first engaging lever portion 1450a and the second engaging lever portion 1450b are moved in the insertion space 1509 of the lever guide portion 1507 as the locking plate 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 sliding member 1400a and the second sliding member 1400b respectively. This causes the door 1 to be in the unlocked state.

At this time, when the door-lever (not shown) is pulled out again, the latch 1200 is released from the locking portion 1371 of the main locking member 1300 and the door 1 is opened.

&Lt; Inner door lock using child lock member >

32, 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 door 1 The child lock projection 1453 of the first latching lever portion 1450a is disposed so as to be spaced apart from the left side of the child locking member 1700. [

In this state, when the child-locking operation protrusion 1710 formed on the child-locking member 1700 is pushed to the left, the locking projection 1722 pushes the child-lock projection 1453 backward as shown in Fig.

The first locking lever 1450a is disengaged from the first locking protrusion 1405a so that the first sliding member 1400a does not slide with the main locking member 1300. [

That is, when the lever (not shown) as a door is pulled out, only the first sliding member 1400a is slidable, so that it is locked from the inside.

This locking state is released only when the child locking member 1700 is slid to the right. In the child locking state, the door 1 can not be opened inside the vehicle, and the door 1 can be opened only outside the vehicle. It is possible to prevent an accident to children and the elderly due to unexpected opening and closing of the door (1).

Further, it is preferable that the locking function of the inner door 1 using the child-locking member is only in the rear seat of the vehicle.

<Door open when motor breakdown>

34, when the locking portion 1631 is moved to the door closing position to automatically close the door 1 through the motor 1610, or when the motor 1610 is being moved or returned to the basic position, May fail.

In this case, when the door lever is pulled, the main locking member 1300 moves to the right side as shown in FIG. 35, and the engaging 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. [

36, when the user pulls the door 1, the striker 1101 rotates the latch 1200 in the counterclockwise direction, so that the door 1 is opened.

In this way, even if the driving unit 1600 fails after closing or closing the door 1 through the driving unit 1600, if the door lever is pulled, the door 1 can be manually opened.

When the user releases the door lever, the latching portion 1631 is slid forward by the return spring 1648 and returned to its original position.

<Door latch system installation state>

The door latch system 5 is installed at an intermediate portion of the opposite side 4 of the door 1 from which the door 3 is rotatably connected to the vehicle body. The door latch system 5 is disposed such that the upper surface thereof faces the inside of the vehicle, the front surface thereof faces the vehicle body side, and the rear surface thereof faces the door 1 side. That is, the rear middle portion of the door latch system 5 is disposed to face the door window 2 when the door window 2 comes down. The door window (2) does not descend vertically down as it descends, but slopes downward. This causes the rear left middle portion of the door latch system 5 to come close to the door window 2 when the door window 2 comes down. Therefore, when the middle portion of the rear left side of the door latch system 5 protrudes rearward, it is caught by the door window 2 that descends. However, the main gear 1630 disposed on the rear left side of the door latch system 5 is formed only in a part of the right outer circumferential surface of the main gear 1630 while maintaining the durability by making the gear teeth 1638 thick. It is possible to reduce the thickness of the middle portion of the left side of the frame. Therefore, when the door latch system 5 is mounted on the door 1, the door window 2 and the door latch system 5 are prevented from interfering with each other.

&Lt; Door latch system assembly method >

The assembly method of the door latch system according to the first embodiment described above is as follows.

Members (a locking plate driving unit 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.

In addition, a main locking member 1300, a sliding member 1400, a child locking member 1700, and the like are provided on the entire surface of the first housing 1110. The latch 1200 and the first return spring 1250 and the pivoting member 1370 and the pivot spring 1390 are engaged with the latch pivot shaft 1230 and the first return spring pivot shaft 1251 on the rear surface of the second housing 1130, A pivot shaft 1380 and a pivotal spring latch shaft 1391. [ Subsequently, the first housing 1110 and the second housing 1130 are coupled and fastened to each other through bolts or rivets to complete the assembly.

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

=================== < Second Embodiment > ===================

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

40 and 41, the door latch system according to the second embodiment further includes a locking driving part 2650 for sliding the locking plate 2500, and the locking driving part 2650 and the locking plate 2500 (2500) is connected via a rack (2653) and a pinion (2652).

The locking drive portion 2650 includes a motor 2651, a pinion 2652 connected to the shaft of the motor 2651 and a rack 2653 engaged with the pinion 2652.

The motor 2651 is disposed below the locking plate 2500.

The axis of the motor 2651 is arranged in the front-rear direction, so that interference with other members of the door can be minimized.

The motor 2651 of the locking driving unit 2650 is smaller than the motor 2610 of the driving unit 2600.

The motor 2651 is seated and installed in a locking motor mounting groove formed in the lower left rear portion of the first housing 2110. The locking motor seating groove is formed in the front-rear direction so as to open the rear side.

The rack 2653 is arranged in the left-right direction.

The rack 2653 is installed on the left rear side of the locking plate 2500.

In the rack 2653, two mounting holes are formed on the upper portion of the gear, and a mounting protrusion 2654 inserted into the mounting hole is formed on the locking plate 2500 so as to protrude rearward. The rack 2653 is installed in the locking plate 2500 by the mounting hole and the mounting projection 2654. [

Further, reinforcing ribs are further formed in the rear of the rack 2653 in the upper and lower portions of the installation hole in the lateral direction.

The main gear 2630 of the driving unit 2600 is formed so as not to be caught by the locking plate 2500. That is, when the main gear 2630 rotates, only the latch is rotated, and the locking plate 2500 is not moved. In this embodiment, a driving part 2600 for rotating the latch and a locking driving part 2650 for moving the locking plate 2500 are separately provided.

The locking drive portion 2650 and the locking plate 2500 are connected through the rack 2653 and the pinion 2652 so that the pinion 2652 can be reversely rotated even if the motor 2651 of the locking drive portion 2650 fails do. Therefore, the user can manually move the locking plate 2500 through the unlocking cable 2810 or the like when the motor 2651 fails or when the vehicle is not powered, thereby improving the safety. The rack 2653 and the pinion 2652 of the present embodiment may be replaced with a worm and a linear worm gear.

Hereinafter, the operation of the door latch system according to the second embodiment of the present invention will be described.

<Door lock>

As shown in Fig. 41, when the door in the unlocked state is in a state in which the key / lock button / knob / door out lever sensor / speed And the operation to be locked due to the setting by the threshold value or the like.

When the door lock via the motor 2561 is input, the motor 2561 operates to rotate the pinion 2652 as shown in Fig.

When the pinion 2652 rotates, the rack 2653 engaged with the pinion 2652 moves to the right. As the rack 2653 moves, the locking plate 2500 also moves to the right, so that the locking projections are disengaged from the first sliding member and the second sliding member, respectively. As a result, when the door is locked and the door lever (not shown) is pulled, the force is not transmitted to the main locking member.

<Unlock the door>

The operation in which the locked door is unlocked due to the setting by the key / lever lock button / knob / door out lever sensor / vehicle speed threshold or the like as shown in FIG. 40 will be described.

When the door unlocking via the motor 2561 is input, the motor 2561 operates to rotate the pinion 2652 in the opposite direction as shown in Fig.

When the pinion 2652 rotates in the opposite direction, the rack 2653 meshed with the pinion 2652 moves to the left. As the rack 2653 moves, the locking plate 2500 also moves to the left so that the locking protrusion is caught by the first sliding member and the second sliding member, respectively. As a result, when the door is unlocked and the door lever (not shown) is pulled, the force is transmitted to the main locking member.

&Lt; Unlocking the door when the motor of the locking driving part is not operated >

The operation of turning the lock release lever 2810 or the door in lever into an unlocked state will be described when power is not supplied to the motor 2651 of the locking drive portion 2650 due to an accident or the motor of the locking drive portion is broken.

If the user unlocks the unlocking cable 2810 or the door-in lever, the motor 2651 can be rotated in the reverse direction even if the power is not supplied to the motor 2651, so that the locking plate 2500 is moved to the left. Therefore, the door lock can be released.

Other operations are the same as those of the first embodiment described above, so a detailed description thereof will be omitted.

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

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

42 and 43, the door latch system according to the present embodiment further includes a driving unit 3600 for rotating the latch, and the driving unit 3600 includes a motor 3610 and the motor 3610, The motor 3610 and the main gear 3630 include a first worm 3613 and a first worm gear 3621 engaged with the first worm 3613. The first worm 3613 and the first worm 3613 rotate together with the first worm 3613, And a second worm 3622 provided on the first worm 3621 and a second worm 3638 meshing with the second worm 3622.

As shown in Fig. 42, a pressing portion reinforcing member 3331 made of a metal material is inserted into the engaging portion pressing portion 3330 of the main locking member 3300. As shown in Fig. The pressing portion reinforcing member 3331 can be disposed on the front surface of the main locking member 3300. [ The rigidity of the main locking member 3300 can be further improved by the pressing portion reinforcing member 3331.

The pressing portion reinforcing member 3331 is formed of a strip-shaped iron plate and is arranged so that a plurality of through holes through which the injection material can pass are spaced apart from each other in the longitudinal direction. The pressing portion reinforcing member 3331 is formed to be bent so as to correspond to the shape of the pressing portion pressing portion 3330. [

The pressing portion reinforcing member 3331 is disposed from the upper end of the pressing portion 3330 to the upper portion of the first sensing member 3350.

As shown in Fig. 43, the axis of the motor 3610 is arranged in the left-right direction.

The main gear 3630 is rotated by a motor 3610, and a latching portion for rotating the latch forward is formed so as to protrude forward. Since the engaging portion is the same as that of the first embodiment, a detailed description thereof will be omitted. The main gear 3630 of this embodiment is not caught by the locking plate as in the second embodiment, and rotates only the latch.

The main gear 3630 has a second worm gear 3638 formed on a part of the outer circumferential surface thereof.

The main gear 3630 is rotated about the main gear shaft 3114 arranged in the front-rear direction.

The motor 3610 and the main gear 3630 include a first worm 3613 mounted on the shaft of the motor 3610, a first worm gear 3621 engaged with the first worm 3613, A second worm 3622 provided on the first worm 3621 and a second worm gear 3638 meshing with the second worm 3622 and formed on the main gear 3630.

That is, a reduction gear is disposed between the motor 3610 and the main gear 3630. The reduction gear unit includes a first worm gear 3621 and a second worm 3622 mounted on the first worm gear 3621. The axis of the reducer is arranged in the vertical direction. The first worm gear 3621 is disposed on the second worm 3622 and is integrally formed.

Accordingly, when the motor 3610 is operated, the first worm 3613 rotates. As the first worm 3613 rotates, the first worm gear 3621 rotates. When the first worm gear 3621 rotates, The second worm 3622 formed integrally with the first worm gear 3621 is also rotated and the main gear 3630 is rotated as the second worm 3622 rotates.

The shaft of the reduction gear is rotatably installed on the reduction gear shaft support plate 3623. A reduction gear support plate 3623 is disposed on the upper and lower portions of the reduction gear, respectively. A support plate insertion groove into which the reduction gear shaft support plate 3623 is inserted is formed on the rear surface of the first housing 3110 and on the front surface of the third housing so that the reducer can be easily installed in the housing.

When such a reduction gear is provided, the speed of the motor 3610 is greatly reduced, so that it is smoothly driven when the door is closed through the motor 3610, and the driving torque is secured. In addition, when the door is closed, the speed of the door is lowered so that the door can be opened in an emergency in the event of a safety accident in which the body or clothes are caught in the door.

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

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

44 to 51, the door latch system according to the present embodiment further includes a driving unit 4600 for rotating the latch, and a child-locking member 4700 movably installed in the housing , And the driving unit 4600 moves the child-locking member 4700.

The driving unit 4600 includes a motor 4610 and a main gear 4630 rotated by the motor 4610. [

The axis of the motor 4610 is arranged in the left-right direction.

The main gear 4630 is formed such that a latching portion 4631 for rotating the latch forwardly protrudes forward. Thus, the latch can be rotated through the main gear 4630.

Since the main gear 4630 is the same as that of the first embodiment, a detailed description thereof will be omitted.

The first locking portion 4633 and the second locking portion 4635 are engaged with child lock members 4700 described below. That is, the child-locking member 4700 is slid (moved) to the left or right by the main gear 4630.

The same reduction gear unit as in the third embodiment is disposed between the motor 4610 and the main gear 4630. Therefore, the detailed description of the reduction gear and the operation thereof will be omitted.

The child-locking member 4700 is installed on the rear surface of the first housing 4110 of the housing so as to be movable in the left-right direction.

A child-locking-member receiving groove is formed on the rear surface of the first housing 4110, and the child-bearing-member receiving groove is formed to communicate with the locking-member receiving groove. The child-locking-member seating groove is formed to open rearward.

The child locking member 4700 is disposed at the lower portion of the driving portion 4600 and is disposed at the rear of the locking plate 4500.

The child-locking member 4700 is formed like a plate like the locking plate 4500.

The child-locking member 4700 is formed with a main gear locking protrusion 4710 which is engaged with the first locking portion 4633 or the second locking portion 4635 on the left rear upper portion. The main gear locking protrusion 4710 is formed to protrude rearward.

The child-locking member 4700 is formed with a third sensing rest 4740 at the rear of the middle portion.

The third sensing part 4740 is provided in a bar shape vertically arranged in the vertical direction, and a third sensing part 4741 is provided at the lower end. The third sensing unit 4741 may be provided as a magnet.

The PCB 4900 is provided with a seventh sensor 4904 and an eighth sensor 4902 for sensing the third sensor 4741 so as to be spaced apart from each other in the lateral direction. The seventh sensor 4904 and the eighth sensor 4902 detect whether the vehicle is in a child unlocking state or a child locking state. Such a signal is transmitted to the vehicle ECU and informs the driver whether or not the child is locked by lighting or the like.

A child lock projection 4453 protrudes upward from an upper portion of the first latch lever portion 4450a disposed on the upper portion of the latch lever portion.

The child-locking member 4700 is formed with a projection guide portion 4720 on the right front surface of the third sensing element 4740.

The projection guide portion 4720 is formed so as to protrude forward (toward the first engaging lever portion 4450a).

The projection guide portion 4720 is formed in a strip shape, and is formed by being bent toward the right after protruding forward. Therefore, an insertion space into which the child lock protrusion 4453 is inserted is formed between the projection guide 4720 and the front surface of the child lock member 4700. The insertion space is formed so that the upper and lower portions and the right portion are opened.

An inclined surface is formed on the inner surface of the projection guide portion 4720 (the surface that contacts the child lock projection 4453), thereby simplifying the structure and improving durability. Due to this inclined surface, the thickness of the right and left front side of the projection guide 4720 becomes thicker toward the left side.

As the projection guide portion 4720 guides the child lock projection 4453, the first engagement lever portion 4450a of the engagement lever portion is rotated.

A second stopper protrusion 4108 is formed on the rear surface of the first housing 4110 of the housing so as to protrude from the rear of the first housing 4110. A second stopper protrusion 4108 is provided on the rear of the child locker member 4700, A spring 4730 is installed.

The second stopper protrusion 4108 is formed to protrude rearward from the rear surface of the first housing 4110 and the second stop spring 4730 is installed on the right rear surface of the child lock member 4700.

A stopper slot 4701 through which the second stopper protrusion 4108 passes is formed in the right side of the child lock member 4700 in the left-right direction.

On the rear surface of the child-locking member 4700, a first ring 4703 to which one side of the second stop spring 4730 is fitted is formed to protrude rearward on the left side of the stopper slot 4701.

On the rear surface of the child-locking member 4700, a second ring 4702 to which the other end (end) of the second stop spring 4730 is inserted is formed to protrude rearward on the right side of the stopper slot 4701.

The second stop spring 4730 is formed by bending a middle portion of the metal wire. Accordingly, the second stop spring 4730 is formed in a generally pin shape. As such, the second stop spring 4730 is provided as a release spring.

A first fitting portion to be fitted to the first ring 4703 is formed on one side of the second stop spring 4730.

The second stop spring 4730 has a first stop portion formed on the right side of the first fitting portion and formed in an arc shape such that the upper and lower portions correspond to the shape of the second stopper projection 4108. The second stopper projection 4108 is seated in the first stop portion when the child lock member 4700 is in the child lock position.

The second stopper spring 4730 has a second stop portion formed on the right side of the first stopper portion and having an arc shape corresponding to the shape of the second stopper protrusion 4108, respectively. The second stopper projection 4108 is seated on the second stop portion when the child lock member 4700 is in the child lock-off position.

The second stop spring 4730 is formed between the first stopper portion and the second stopper portion such that the upper and lower widths thereof are smaller than the first stopper portion and the second stopper portion.

A spring end portion is formed at the right end of the second stop spring 4730.

Thus, the second stop spring 4730 of this embodiment is formed in the same or similar shape as the first stop spring of the first embodiment.

The second stopper projection 4108 is formed into a cylindrical shape in cross section.

Therefore, in order for the child-locking member 4700 to move from the child-unlocking position to the child-lock position (or move in the opposite direction), the elastic locking member 4700 is moved after being elastically deformed so that the upper- That is, in order to move the child-locking member 4700 from the child-unlocking position to the child-lock position or to move the child-locking member 4700 from the child lock position to the child- It is necessary to slide the child-locking member 4700 with a force enough to elastically deform the deformed portion.

&Lt; Inner door lock using child lock member >

When the driver inputs the inner door lock using the child locking member 4700 through a button or the like, the motor 4610 of the driving unit 4600 is operated. As shown in FIG. 48 (b), when the motor 4610 is operated, the main gear 4630 also rotates. When the main gear 4630 rotates, the main gear locking protrusion 4710 is engaged with the second locking portion 4635, and the child locking member 4700 also slides to the right.

When the child-locking member 4700 is slid in this way, the child lock projection 4453 of the first locking lever portion 4450a is caught by the projection guide portion 4720 and guided rearward, as shown in Fig. As a result, the first engaging lever portion 4450a is disengaged from the first engaging jaw of the first sliding member. Therefore, the first sliding member and the main locking member 4300 are separated from each other, so that the first sliding member and the main locking member 4300 do not slide together.

Meanwhile, the motor 4610 is operated until the third sensor 4741 is sensed by the eighth sensor 4902.

After the vehicle is automatically locked through the driving unit 4600 as described above, the motor 4610 rotates in the opposite direction to move to the basic position, as shown in FIG. 48 (c).

&Lt; Locking of the inner door using the child locking member >

When the driver inputs an inner door unlocking operation using the child locking member 4700 through a button or the like, the motor 4610 of the driving unit 4600 is operated. As shown in FIG. 50 (b), when the motor 4610 is operated, the main gear 4630 also rotates. When the main gear 4630 rotates, the main gear locking protrusion 4710 is engaged with the first locking portion 4633 so that the child locking member 4700 also slides to the left.

When the child-locking member 4700 is slid in this manner, the child-lock projection 4453 of the first locking lever portion 4450a is disengaged from the projection guide portion 4720 as shown in Fig. 51, The right side of the portion 4450a is moved forward by the elastic force of the second return spring. As a result, the first engaging lever portion 4450a is caught by the first engaging jaw of the first sliding member. Therefore, the first sliding member and the main locking member 4300 are connected, and the first sliding member and the main locking member 4300 slide together.

Meanwhile, the motor 4610 is operated until the third sensor 4741 is sensed by the seventh sensor 4904.

After the vehicle is unlocked automatically through the driving unit 4600 as described above, the motor 4610 rotates in the opposite direction and moves to the basic position, as shown in Fig. 50 (c).

The operation of rotating the latch when the door is closed through the driving part 4600 is the same as that of the first embodiment, and thus a detailed description thereof will be omitted.

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

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

52 to 54, the door latch system according to the present embodiment further includes a driving unit for rotating the latch 5200. The driving unit includes a motor 5610, and the latch 5200 Is rotated by the motor 5610, and the motor 5610 and the latch 5200 are connected through a spur gear.

The main locking member 5300 has only a horizontal bar 5340 formed on the left side of the body. That is, the engaging portion pressing portion of the first embodiment is not formed.

The driving unit includes a motor 5610 and a main gear 5630 rotated by the motor 5610.

The driving portion is disposed on the upper portion of the locking plate 5500.

The shaft of the motor 5610 is arranged in the front-rear direction.

A spur gear 5613 is provided on the shaft of the motor 5610. Rear direction of the spur gear 5613 is arranged.

The motor 5610 is installed on the first housing 5110 through a motor support protrusion 5102 protruding rearward from the rear surface of the first housing 5110.

The motor support protrusion 5102 has a motor support surface formed inside the motor support protrusion 5102 so as to correspond to the shape of the motor 5610. The motor support surface is in contact with the motor (5610). In addition, a motor insertion groove into which the motor support protrusion 5102 and the motor 5610 are inserted is formed in the third housing.

A latching portion 5631 for rotating the latch 5200 is formed on the lower front of the left side of the main gear 5630 so as to project forward.

The main gear 5630 is rotated about the main gear shaft disposed in the front-rear direction.

The main gear 5630 is provided with a spur gear, and a gear tooth 5638 is formed only on a part of the outer circumferential surface.

A plurality of sub gears 5620 are disposed between the motor 5610 and the main gear 5630.

The sub gear 5620 is connected to a spur gear having a small diameter and a spur gear having a large diameter coaxially. The sub gear 5620 is formed integrally with a gear having a small diameter and a gear having a large diameter.

A gear having a large diameter of the sub gear 5620 is engaged with a spur gear 5613.

The main gear 5630 is meshed with a gear having a small diameter of the sub gear 5620.

A plurality of sub gears 5620 having gears of small diameter and gears of large diameter are integrally formed and can be interlocked with each other.

The large gear of the other sub gear 5620 is engaged with the small gear of one sub gear 5620 and the large gear of another sub gear 5620 is engaged with the small gear of the other sub gear 5620, The sub gear 5620 decelerates.

The gear reduction ratio can be adjusted through a plurality of spur gears linked in this manner.

The motor 5610 and the main gear 5630 are connected to each other through the spur gear 5613 so that the main gear 5630 can be reversely rotated even when the motor 5610 fails. Therefore, even if the motor 5610 is moved to the door closing position, the door can be opened through the following process.

When the user pulls the door lever, the tiltable member 5370 is rotated and the latching of the latch 5200 is released. In this state, when the user pulls the door in the opening direction, the latch 5200 is rotated in the door opening direction by the lifted striker 1101, and the door is opened. Thus, the door latch system of the present embodiment can manually open the door even when the motor 5610 fails, thereby improving safety.

Further, the main gear 5630 is provided with a first engaging portion and a second engaging portion, to which the locking plate 5500 is engaged, as in the first embodiment. Therefore, when the main gear 5630 is rotated by the operation of the motor 5610, the locking plate 5500 can be moved to the left or right.

Accordingly, the driving unit not only rotates the latch 5200 but also moves the locking plate 5500, so that the door closing and the door locking and the door unlocking can be automatically performed as in the first embodiment .

=================== <Example 6 of the Present Invention> ===================

In describing the door latch system according to the sixth embodiment of the present invention, the same or similar components as those of the door latch system according to the first, second, third, fourth, and fifth embodiments are denoted by the same reference numerals, The illustration is omitted.

55 to 59, a door latch system according to a sixth embodiment of the present invention includes a housing, a latch 6200 rotatably installed in the housing, A main locking member 6300 for locking the latch 6200, a sliding member slidably installed on the housing and disposed on one side of the main locking member 6300, A locking lever portion 6450 rotatably installed on any one of the main locking member 6300 and the sliding member and formed with a locking protrusion, a locking protrusion formed on the other of the main locking member 6300 and the sliding member to receive the locking protrusion, And a locking plate 6500 slidably installed to rotate the locking lever portion 6450. The locking plate 6500 is provided with a lever guide portion A guide bar is formed in the latch lever part 6450 so that the latch lever part 6450 is pivoted to lock the door or unlock the door as the lever guide part guides the guide bar, And a locking driver for releasing the connection between the main locking member 6300 and the sliding member or connecting the main locking member 6300 to the sliding member.

55, the main locking member 6300 is the same as that of the first embodiment, and only the horizontal bar 6340 is formed on the left side of the body. That is, the main locking member 6300 of the present embodiment is not provided with the engaging portion pressing portion of the first embodiment.

56, the locking drive unit includes a motor 6610 and a main gear 6630 rotated by a motor 6610. [ The locking driving unit is connected to a control unit (ECU) provided in the vehicle, and is controlled by a control unit installed in the vehicle.

The motor 6610 is installed on the rear surface of the first housing 6110 of the housing. The motor 6610 is disposed on the upper right side of the first housing 6110. The axis of the motor 6610 is horizontally arranged in the left-right direction. The motor 6610 serves only to lock or unlock the door, so that the motor 6610 is provided with a small motor. Thus, the door latch system can be kept compact and the manufacturing cost can be reduced.

A worm 6613 is provided on the axis of the motor 6610. Therefore, the axis of the worm 6613 is arranged in the left-right direction.

The main gear 6630 is a worm gear engaged with the worm 6613. Therefore, the motor 6610 and the main gear 6630 are connected to each other through the worm gear 6613 and the worm gear engaged with the worm 6613. As a result, the door latch system can be kept compact and the structure can be simplified.

The main gear 6630 is rotatably installed on the rear surface of the first housing 6110. The main gear 6630 is disposed in the middle of the first housing 6110 and disposed above the locking plate 6500. The main gear 6630 is disposed below the motor 6610.

The main gear 6630 has a gear portion 6632 formed with a gear at a portion of the outer circumferential surface thereof and a non-gear portion formed at the other portion of the outer circumferential surface.

The gear portion 6632 is formed in the upper and lower portions of the main gear 6630, and the non-gear portion is formed in a lower portion of the main gear 6630.

An incision is formed in the lower portion of the main gear 6630. The incision portion is formed such that the front and rear portions and the lower portion are opened. The main gear 6630 is provided with a first engaging portion 6633 and a second engaging portion 6635 for sliding the locking plate 6500 described below. The first latching portion 6633 is disposed on the right side of the incision portion, and the second latching portion 6635 is disposed on the left side of the incision portion.

The insertion hole around which the shaft is inserted in the main gear 6630, the gear portion 6632, and the first and second engaging portions 6633 and 6635 are formed thicker than the other portions. Thus, the main gear 6630 is maintained at a light weight and durability.

And a gear return spring 6650 for returning the main gear 6630 to the basic position.

The gear return spring 6650 is provided with a coil spring. Preferably, the gear return spring 6650 may be formed to be curved in an arc shape.

On the front surface of the main gear 6630, a gear return spring groove 6647 is formed on which a gear return spring 6650 is seated. The gear return spring groove 6647 is formed to be curved in an arc shape and open at the front. That is, the portion of the gear return spring groove 6647 facing the first housing 6110 is opened.

A pressing rib 6140 protrudes rearward from the rear surface of the first housing 6110. The pushing rib 6140 is formed in an arc shape having an open top. The pressing rib 6140 is disposed between the gear portion 6632 and the first and second engaging portions 6633 and 6635 in which the shaft of the main gear 6630 is inserted.

A rib insertion groove 6648 into which the pushing rib 6140 is inserted is formed in each of both sides of the main gear 6630 forming the return spring groove 6647 so as to communicate with the gear return spring groove 6647.

As shown in FIG. 56, the locking plate 6500 is disposed laterally to the lower portion of the main gear 6630.

58, the locking plate 6500 includes an unlocking cable connection portion 6501, a lever guide portion 6507 disposed on the right side of the unlocking cable connection portion 6501, A manual locking guide slot 6515 disposed on the right side, and a first stop spring 6570.

A locking protrusion 6506 protrudes downward below the locking plate 6500 so as to be disposed on the right side of the unlocking cable connection portion 6501. The locking protrusion 6506 is inserted into the key connection cutout portion of the key connector.

A main gear engaging portion 6502 is formed on an upper portion of the locking plate 6500 so as to be disposed between the engaging projection 6506 and the lever guide portion 6507. The main gear engagement portion 6502 is inserted into the cutout portion of the main gear 6630. Therefore, when the main gear 6630 rotates, the main gear engaging portion 6502 is engaged with the main gear 6630, and the locking plate 6500 is slid to the left or right. When the locking plate 6500 is moved to the right, the engaging lever portion 6450 slips out of the engaging jaw of the sliding member, and the connection between the main locking member 6300 and the sliding member is released. When the locking plate 6500 is moved to the left, the engaging lever portion 6450 is caught by the engaging jaw of the sliding member, so that the main locking member 6300 and the sliding member are connected.

An electrical connecting member 6572 is provided on the front surface of the locking plate 6500, which is the surface facing the first housing 6110. The electrical connecting member 6572 may be formed of a metal plate that is disposed in the up-and-down direction and is electrically conductive.

The first housing 6110 is provided with first, second and third electric wires 921, 922, and 923 on its rear surface, which faces the front surface of the locking plate 6500. The first, second and third electric wires 921, 922 and 923 are connected to a control unit installed in the vehicle.

The first, second and third electric wires 921, 922 and 923 are inserted and installed in the first housing 6110.

The ends of the first, second and third electric wires 921, 922, and 923 are exposed to the outside through a part of the rear surface of the first housing 6110. The ends of the first, second and third electric wires 921, 922 and 923 are arranged horizontally.

The ends of the second wires 922 are disposed on the first wires 921 and the third wires 923, respectively.

The ends of the first wire 921 and the third wire 923 are spaced apart in the horizontal direction (left-right direction) in which the locking plate 6500 slides.

When the locking plate 6500 is slid, the electrical connecting member 6572 connects the first and second wires 921 and 922 or connects the second and third wires 922 and 923.

Hereinafter, the operation of the door latch system according to the sixth embodiment of the present invention will be described.

<Door closed>

When the user closes the door in the open state, the striker 1101 installed on the vehicle body pushes the latch 6200 to rotate the latch 6200 clockwise.

The locking portion of the pivoting member 6370 is inserted into the locking groove of the latch 6200 to close the door.

<Door lock>

The operation of locking the door which is in the unlocked state due to the setting by the key / lock button / knob / door out lever sensor / vehicle speed threshold, etc. will be described.

When the door lock via the motor 6610 is input, the motor 6610 is operated to rotate the main gear 6630 counterclockwise.

When the main gear 6630 rotates counterclockwise, the second engaging portion 6635 pushes the main gear engaging portion 6502 of the locking plate 6500 to slide the locking plate 6500.

At this time, the locking plate 6500 is moved to the right, whereby the engaging lever portion 6450 is disengaged from the engagement protrusion of the sliding member, and the connection between the main locking member 6300 and the sliding member is released. When the door is locked in this manner and the door lever (not shown) is pulled out, the force is not transmitted to the main locking member 6300.

The motor 6610 is operated until the electrical connecting member 6572 provided on the locking plate 6500 connects the second wire 922 and the third wire 923. [ Thereafter, the motor 6610 stops operating.

When the main gear 6630 rotates counterclockwise, the pressing rib 6140 presses the gear return spring 6650 so that the gear return spring 6650 is compressed. The main gear 6630 is returned to its original position by the restoring force of the compressed gear return spring 6650 when the force for rotating the main gear 6630 is removed (when the operation of the motor 6610 is stopped).

<Unlock the door>

And the lock state is set to the unlocked state due to the setting by the key / lock button / knob / door out lever sensor / vehicle speed threshold or the like.

When the door unlocking via the motor 6610 is inputted, the motor 6610 is operated to rotate the main gear 6630 clockwise.

When the main gear 6630 rotates clockwise, the first engaging portion 6633 pushes the main gear engaging portion 6502 to slide the locking plate 6500.

At this time, the locking plate 6500 is moved to the left side, and the engaging lever portion 6450 is caught by the engaging jaw of the sliding member, so that the main locking member 6300 and the sliding member are connected. Thus, when the door is unlocked and the door lever is pulled, the force is transmitted to the main locking member 6300.

When the door is unlocked, the motor 6610 is operated until the electric connection member 6572 provided on the locking plate 6500 connects the second electric wire 922 and the first electric wire 921. Thereafter, the motor 6610 stops operating.

When the main gear 6630 rotates clockwise, the pressing rib 6140 presses the gear return spring 6650 so that the gear return spring 6650 is compressed. The main gear 6630 is returned to its original position by the restoring force of the compressed gear return spring 6650 when the force for rotating the main gear 6630 is removed (when the operation of the motor 6610 is stopped).

<Door opening>

When the user pulls the door lever when the door is in the unlocked state, the door lever connection portion pulls the sliding member and the main locking member 6300 to the right. As a result, the locking portion of the tiltable member 6370 comes out of the locking groove of the latch 6200. At this time, the latch 6200 is returned to the home position by the first return spring. Thus, the striker 1101 can escape from the door latch system.

In addition, the inner door locking process using the child-locking member and the inner door unlocking process using the door-lever are the same as those of the first embodiment described above, so the description thereof will be omitted.

=================== <Example 7 of the present invention> ===================

In describing the door latch system according to the seventh embodiment of the present invention, the same or similar components as those of the door latch system according to the first, second, third, fourth, fifth, and sixth embodiments are denoted by the same reference numerals, Description and illustration are omitted.

As shown in Fig. 60, the door latch system of the present embodiment excludes a gear return spring for returning the main gear 7630 of the locking drive portion to the original position.

The door latch system according to the seventh embodiment has the same configuration except that the gear return spring is omitted in the sixth embodiment.

Hereinafter, the operation of the door latch system according to the seventh embodiment will be described.

<Door lock>

The operation of locking the door which is in the unlocked state due to the setting by the key / lock button / knob / door out lever sensor / vehicle speed threshold, etc. will be described.

When the door lock via the motor 7610 is input, the motor 7610 is operated to rotate the main gear 7630 counterclockwise.

When the main gear 7630 rotates in the counterclockwise direction, the second engaging portion pushes the main gear engaging portion 7502 of the locking plate to slide the locking plate.

At this time, the locking plate is moved to the right, whereby the engaging lever portion is disengaged from the engaging jaw of the sliding member, and the connection between the main locking member and the sliding member is released. When the door is locked in this manner and the door lever (not shown) is pulled out, the force is not transmitted to the main locking member.

The motor 7610 is operated until the electric connecting member provided on the locking plate connects the second electric wire and the third electric wire. Thereafter, the motor 7610 stops operating.

<Unlock the door>

And the lock state is set to the unlocked state due to the setting by the key / lock button / knob / door out lever sensor / vehicle speed threshold or the like.

When the door unlocking via the motor 7610 is input, the motor 7610 is operated to rotate the main gear 7630 clockwise.

When the main gear 7630 rotates in the clockwise direction, the first engaging portion pushes the main gear engaging portion 7502 to slide the locking plate.

At this time, the locking plate is moved to the left side, and the engaging lever portion engages with the engaging jaw of the sliding member, so that the main locking member and the sliding member are connected. Thus, when the door is unlocked and the door lever is pulled, the force is transmitted to the main locking member.

When the door is unlocked, the motor 7610 is operated until the electric connecting member provided on the locking plate connects the second electric wire and the first electric wire. Thereafter, the motor 7610 stops operating.

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

In describing the door latch system according to the eighth embodiment of the present invention, the same or similar components as those of the door latch system according to the first, second, third, fourth, fifth, sixth, , Detailed description and illustration are omitted.

61, the door latch system according to the present embodiment includes a locking driving portion 8650 for sliding the locking plate 8500, and the locking driving portion 8650 and the locking plate 8500 And is connected through the rack 8653 and the pinion 8652. In addition, the rack 8653 and the pinion 8652 of the present embodiment can be replaced with worms and straight worm gears.

The locking drive portion 8650 includes a motor 8651 and a pinion 8652 connected to the shaft of the motor 8651 and a rack 8653 engaged with the pinion 8652. [

The motor 8651 is disposed in the middle lower portion of the locking plate 8500.

The axis of the motor 8651 is arranged in the front-rear direction, so that interference with other members of the door can be minimized.

The motor 8651 of the locking drive portion 8650 is provided with a small-sized motor.

The motor 8651 is seated and installed in a locking motor seating groove formed at the middle rear lower portion of the first housing. The locking motor seating groove is formed in the front-rear direction so as to open the rear side.

The rack 8653 is arranged in the left-right direction.

The rack 8653 is installed at the middle rear of the locking plate 8500. [

In the rack 8653, two mounting holes are formed on the upper portion of the gear, and a mounting protrusion 8654 inserted into the mounting hole is formed on the locking plate 8500 so as to protrude rearward. Due to the installation hole and the mounting projection 8654, the rack 8653 is installed in the locking plate 8500.

Further, reinforcing ribs are further formed in the rear of the rack 8653 in the upper and lower portions of the mounting hole in the lateral direction.

=================== Ninth embodiment of the present invention ===================

In describing the door latch system according to the ninth embodiment of the present invention, the same or similar components as those of the door latch system according to the first, second, third, fourth, fifth, sixth, seventh, And detailed description and illustration thereof will be omitted.

62, the door latch system according to the present embodiment includes a locking driving portion 9650 for sliding the locking plate 9500, and the locking driving portion 9650 and the locking plate 9500 And is connected through the rack 9653 and the pinion 9652.

The locking drive portion 9650 includes a motor 9651, a pinion 9652 connected to the shaft of the motor 9651, and a rack 9653 engaged with the pinion 9652. Further, the rack 9653 and the pinion 9652 of the present embodiment can be replaced by worms and linear worm gears.

The motor 9651 is disposed in the middle upper portion of the locking plate 9500.

The axis of the motor 9651 is arranged in the vertical direction, so that the front-rear width of the door latch system can be minimized.

The motor 9651 of the locking driving portion 9650 is provided with a small-sized motor.

The motor 9651 is seated and installed in a locking motor seating groove formed in the middle rear of the first housing 9110. The locking motor seating groove is formed in the front-rear direction so as to open the rear side. A motor support protrusion 9107 disposed on both sides of the motor 9651 is formed on the rear surface of the first housing 9110 so as to protrude rearward.

The rack 9653 is arranged in the left-right direction.

The rack 9653 is installed in the middle of the locking plate 9500.

In the rack 9653, a mounting hole is formed in front of the gear, and a mounting protrusion inserted into the mounting hole is formed in the locking plate 9500 so as to protrude upward. In addition, a rack receiving groove on which the rack 9653 is seated is formed on the upper portion of the locking plate 9500. And the mounting projection is disposed inside the rack seating groove. Due to the mounting hole and the mounting projection, the rack 9653 is mounted on the locking plate 9500. Further, the rack 9653 may be integrally formed with the locking plate 9500.

=================== <Tenth Embodiment of the Invention> ===================

In describing the door latch system according to the tenth embodiment of the present invention, the same or similar configuration as the door latch system according to the first, second, third, fourth, fifth, sixth, seventh, And detailed description and illustration thereof will be omitted.

63 to 68, the door latch system according to the present embodiment includes a child-locking member 700 movably installed in the housing, a child-locking-driving unit 700 for moving the child- And a protrusion guiding portion 720 is formed on the child locking member 700. A child lock projection 453 is formed on the locking lever portion so that the protrusion guiding portion 720 is engaged with the child lock projection So that the locking lever portion can be pivoted.

As shown in FIG. 63, the child-locking member 700 is slidably installed on the rear surface of the first housing 110 of the housing.

The child locking member 700 is disposed on the upper portion of the locking plate 500.

A child-locking member seating groove is formed on the rear surface of the first housing 110 to receive the child-locking member 700. The child-sitting member seating groove is formed to communicate with the locking member seating groove on which the locking lever is seated. The child-locking-member seating groove is formed to open rearward.

A child lock projection 453 protrudes upward from the upper right side of the first latch lever part 450a of the latch lever part. The first locking lever portion 450a is disposed forward of the child locking member 700. [

As shown in FIG. 64, a protrusion guide portion 720 is formed on the front surface of the child-locking member 700 so as to protrude forward. The projection guide 720 protrudes forward and then bends to the left. Therefore, the insertion space into which the child lock protrusion 453 is inserted is formed so that the upper and lower portions and the left side are opened.

As the projection guide 720 guides the child lock projection 453, the first locking lever portion 450a can be rotated.

The child lock device 700 and the child lock motor 750 of the child lock driving device described below are connected to the child rack 710 through the child pinion 751.

A child rack 710 is formed behind the child-locking member 700.

The child racks 710 are arranged in the left-right direction. Accordingly, the child-locking member 700 is formed as a whole in a 'C' shape as viewed in a plan view.

The child rack 710 is exposed to the rear of the first housing 110.

The child-locking member 700 is formed such that an electrical connecting member 741 protrudes upward in the right upper portion. The electrical connection member 741 is formed of a metal material or the like that can be electrically connected. The electrical connecting member 741 is elongated in the longitudinal direction.

The child-locking driving unit includes the child-lock motor 750 to move the child-locking member 700 to the left and right.

A child pinion 751 is mounted on a shaft of the child lock motor 750.

The child pinion 751 is engaged with the child rack 710. In addition, the child rack 710 and the child pinion 751 of this embodiment can be replaced by a child worm and a linear child worm.

In addition, the first housing 110 is provided with first, second and third electric wires 91, 92 and 93 on its inner surface, which is a surface facing the upper surface of the child-locking member 700. Child 1, 2, and 3 electric wires 91, 92, 93 are disposed inside the child-locking-member seating groove. The first, second and third electric wires 91, 92 and 93 are arranged on the electric connecting member 741.

The first, second and third electric wires 91, 92 and 93 are connected to a control unit installed in the vehicle.

The first, second and third electric wires 91, 92 and 93 are inserted into the first housing 110.

The end portions of the first, second and third electric wires 91, 92 and 93 are exposed to the outside through a portion of the inner surface of the first housing 110 which is partially cut. The ends of the first, second and third electric wires 91, 92 and 93 are arranged horizontally.

The end of the child second wire 92 is disposed in front of the child first wire 91 and the child wire third wire 93, respectively.

The end portions of the child first wire 91 and the child third wire 93 are spaced apart from each other in the horizontal direction (left-right direction) in which the child-bearing locking member 700 slides.

When the child-locking member 700 is slid, the electric connecting member 741 connects the first and second electric wires 91 and 92 or connects the second and third electric wires 92 and 93 to each other.

&Lt; Inner door lock using child lock member >

When the driver inputs the inner door lock using the child locking member 700 through a button or the like, the child lock motor 750 of the child locking driving portion is operated. When the child lock motor 750 is operated, the child pinion 751 also rotates. When the child pinion 751 is rotated, the child rack 710 engaged with the child pinion 751 is moved to the left. The child-locking member 700 in which the child rack 710 is integrally formed also slides to the left.

67, the child lock projection 453 of the first locking lever portion 450a is caught by the projection guide portion 720 and guided rearwardly. As a result, the first engaging lever portion 450a is disengaged from the first engaging jaw of the first sliding member. Thus, the first sliding member and the main locking member are separated from each other, so that the first sliding member and the main locking member do not slide together.

On the other hand, the child lock motor 750 is operated until the electric connecting member 741 connects the second and third electric wires 92 and 93.

&Lt; Locking of the inner door using the child locking member >

When the driver inputs an inner door unlocking operation using the childlocking member 700 through a button or the like, the child lock motor 750 of the childlocking driving unit is operated. When the child lock motor 750 is operated, the child pinion 751 also rotates. When the child pinion 751 is rotated in the reverse direction, the child rack 710 engaged with the child pinion 751 is moved to the right. The child-locking member 700 in which the child rack 710 is integrally formed also slides to the right.

68, the child lock projection 453 of the first latching lever part 450a is pushed out of the projection guide 720 and the first latching lever 704a of the first latching lever 450a is retracted, The right side of the portion 450a is moved forward by the elastic force of the second return spring. As a result, the first engaging lever portion 450a is caught by the first engaging jaw of the first sliding member. Thus, the first sliding member and the main locking member are connected, and the first sliding member and the main locking member slide together.

On the other hand, the child lock motor 750 is operated until the electric connecting member 741 connects the first and second electric wires 91 and 92.

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

In describing the door latch system according to the eleventh embodiment of the present invention, in the same or similar structure as the door latch system according to the first, second, third, fourth, fifth, sixth, seventh, The same reference numerals are used, and detailed description and illustration are omitted.

69 to 71, in the door latch system according to the present embodiment, the locking plate 4500 'is provided with an unlocking cable 4810', and the unlocking cable 4810 ' And a direction switching unit 20 is provided between the first and second electrodes 6a and 6b.

The drive including the motor 4610 'moves the child locking member 4700' as in the fourth embodiment, and rotates the latch to automatically close the door 1. [

The motor 4610 'is disposed above the child lock member 4700' and the locking plate 4500 '. The motor 4610 'is installed on the upper right rear surface of the first housing 4110'.

The latch is installed on the left front surface of the first housing 4110 '.

The child-locking member 4700 'is slidably installed on the rear surface of the first housing 4110' in the left-right direction.

The PCB 4900 'is disposed below the child locking member 4700' and the locking plate 4500 '. The PCB 4900 'is installed on the lower right side of the first housing 4110'.

As shown in FIG. 69, the locking plate 4500 'is formed in a plate shape, and is installed to be slidable in the left-right direction behind the first housing 4110'. The locking plate 4500 'is disposed behind the child locking member 4700'.

On the right rear surface of the locking plate 4500 ', there is formed a unlocking cable connection portion 4501' in which an unlocking cable 4810 'is installed.

The worm gear 4653 ', the second sensing member, the lever guide portion, the unlocking cable connection portion 4501', and the manual locking guide elongate, which will be described below, are arranged in order from the left side of the locking plate 4500 '. As a result, the unlocking cable 4810 'is pulled out to the right side of the first housing 4110' like the door lever connecting portion 4800 '.

An unlocking cable 4810 'is connected to the left end of the unlocking cable connection part 4501' so that the unlocking cable 4810 'is pulled to the left or the right when the knob 6 or the like is operated so that the locking plate 4500' Left or right.

On the rear surface of the unlocking cable connection portion 4501 ', a first engaging member seating groove on which the first engaging member of the unlocking cable 4810' is seated is formed on the rear surface. Therefore, it becomes easier to assemble the unlocking cable 4810 'to the locking plate 4500'.

The first latching member of the unlocking cable 4810 'is also formed in a vertically long cylindrical shape.

The direction switching unit 20 includes a direction switching housing and a switching lever 30 rotatably installed in the direction switching housing.

70, the direction switching housing includes a first direction switching housing 21 and a second direction switching housing 22 covering the rear of the first direction switching housing 21. As shown in FIG.

The first direction switching housing (21) is formed with a receiving groove on the rear surface thereof in which each component can be received. The receiving groove is formed to open rearward.

The first direction switching housing 21 has a first guide groove 24 for guiding the knob 6 and a second guide groove 23 for guiding the cable block 40 connected to the unlocking cable 4810 ' .

On the rear surface of the cable block 40, a second latching member receiving groove 41 on which the second latching member of the unlocking cable 4810 'is seated is formed. Thus, the unlocking cable 4810 'is connected to the cable block 40.

The first guide groove 24 and the second guide groove 23 are formed in the left-right direction. The first guide groove 24 and the second guide groove 23 are formed so that a draw-out hole through which the knob 6 or the unlocking cable 4810 'is drawn out is communicated to the right side and the left side, respectively.

The first guide groove 24 is disposed below the second guide groove 23.

The first guide groove 24 and the second guide groove 23 are formed with sliding protrusions inserted into sliding grooves formed on the front surfaces of the knob 6 and the cable block 40, respectively. The knob 6 and the cable block 40 can be smoothly slid due to the sliding groove and the sliding protrusion.

The first direction switching housing 21 is formed with an elongated hole 25 through which the switching lever 30 can be moved so as to communicate with the first and second guide grooves 24 and 23. The long hole 25 is disposed between the first guide groove 24 and the second guide groove 23.

The long holes 25 are elongated in the left-right direction. The switching lever 30 is inserted into the slot 25.

A rotation axis 26 of the switching lever 30 is formed in the first direction switching housing 21 so as to be disposed inside the slot 25. The rotary shaft 26 is disposed between the first guide groove 24 and the second guide groove 23.

On the rear surface of the knob 6, a first connection protrusion 6a is formed so as to protrude rearward.

On the rear surface of the cable block 40, a second connection protrusion 42 protrudes rearward.

The first and second connection projections 6a and 42 are formed in a cylindrical shape.

The switching lever 30 is formed in a long bar shape and is arranged in the vertical direction.

The switching lever 30 has a first connection projection insertion groove for receiving the first connection projection 6a at one side thereof and a second connection projection insertion groove for receiving the second connection projection 42 at the other side thereof. Therefore, the knob 6 is rotatably connected to one side of the switching lever 30, and the unlocking cable 4810 'is rotatably connected to the other side of the switching lever 30.

Between one side and the other side of the switching lever 30, there is formed an axial insertion hole into which the rotary shaft 26 is inserted.

Therefore, the rotary shaft 26 is disposed on one side and the other side of the switching lever 30. [ That is, the rotary shaft 26 is disposed between the knob 6 and the cable block 40.

When the knob 6 is pressed (moved to the left), the cable block 40 moves to the right side due to the switching lever 30 thus installed. When the cable block 40 is moved to the right side, the locking plate 4500 'also moves to the right, thereby locking the door. In addition, when the knob 6 is pulled (moved to the right), the cable block 40 is moved to the left. When the cable block 40 is moved to the left side, the locking plate 4500 'is also moved to the left side to unlock the door.

In this manner, the switching lever 30 reversely reverses the direction of the force applied to the knob 6 by the lever principle and transmits it to the locking plate 4500 '.

Therefore, even if the pull-out direction of the unlocking cable 4810 'is changed, the operation of the knob 6 can be maintained as it is.

71, when the door latch system is installed on the door 1, electronic products such as the motor 4610 'and the PCB 4900' can be directed to the top of the vehicle, so that the motor 4610 ') Or the PCB 4900' is prevented from being flooded.

And a locking driving portion 4650 'for sliding the locking plate 4500' in the left-right direction.

The locking driving part 4650 'includes a motor 4651', a worm 4652 'connected to the axis of the motor 4651', and a worm gear 4653 'coupled to the worm 4652'. Accordingly, the motor 4651 'and the locking plate 4500' are connected to the worm 4652 'through the linear worm gear 4653'. In this way, the reduction ratio can be reduced even with a simple configuration using the worm 4652 '.

The motor 4651 'is disposed below the locking plate 4500' and is installed at the lower left rear surface of the first housing 4110 '.

The axis of the motor 4651 'is arranged in the left-right direction, so that interference with other members of the door 1 can be minimized.

The motor 4651 'of the locking driving part 4650' is smaller than the motor 4610 'of the driving part. Therefore, even when the motor 4651 'is broken, the motor 4651' can be reversely rotated, and the locking plate 4500 'can be moved by the external force.

The worm gear 4653 'is formed in a linear shape like a rack, and is disposed in the left-right direction.

The worm gear 4653 'is disposed on the upper part of the worm 4652'.

The worm gear 4653 'is installed on the left side of the locking plate 4500'. The worm gear 4653 'may be integrally formed with the locking plate 4500'.

=================== < Example 12 > ===================

In describing the door latch system according to the twelfth embodiment of the present invention, the same or similar to the door latch system according to the first, second, third, fourth, fifth, sixth, seventh, eighth, The same reference numerals are used for the configurations, and detailed description and illustration thereof are omitted.

72 and 73, the door latch system according to the present embodiment includes a child lock member 700 'movably installed in the housing 100', and a child lock member 700 ' The child-locking unit 700 'and the child-locking driving unit are connected to each other through the child worm 751' and the child worm 710 '.

The child-locking member 700 'is formed similarly to the tenth embodiment.

The child-locking member 700 'is installed on the right rear side of the first housing 110'.

The child-locked driving part includes a child lock motor 750 '.

The child lock motor 750 'is disposed in the rear middle of the first housing 110'. That is, the child lock motor 750 'is disposed to be spaced from the left end of the housing 100'.

The child lock motor 750 'is disposed on the left side of the child-locking member 700', and the axis is arranged in the left-right direction.

The child rocking member 700 'and the child lock motor 750' are connected through the child worm 751 'and the child worm wheel 710'.

A child worm 751 'is provided on the axis of the child lock motor 750'.

The child worm gear 710 'is formed in a linear shape like a rack, and is engaged with the child worm 751'.

The child worm gear 710 'is arranged in the left-right direction.

The child worm gear 710 'is integrally formed on the rear surface of the child lock member 700'.

Further, a child lock sensor 790 is provided at the rear right of the first housing 110 '. The child lock sensor 790 is provided as a limit switch. The child lock sensor 790 is disposed on the right side of the child locking member 700 'to detect whether the child locking member 700' is in the child unlocking position. Specifically, when the child-locking member 700 'is moved to the right by the child-lock motor 750', the child-locking sensor 700 'pushes the switch of the child-lock sensor 790 so that the child- Detects child unlocking.

The locking plate 500 'is installed to be movable in the left and right direction on the rear surface of the first housing 110' so as to be disposed below the child-locking member 700 '.

The unlocking cable 810 'is connected to the right side of the locking plate 500' as in the eleventh embodiment. The unlocking cable 810 'is drawn to the right side of the housing 100'. A direction switching unit 20 is provided between the unlocking cable 810 'and the knob 6.

The locking plate 500 'is moved to the left and right by the locking driving unit 650'.

The locking drive unit 650 'includes a motor 651', a worm 652 'connected to the shaft of the motor 651' and a worm gear 653 'coupled to the worm 652', as in the eleventh embodiment. ').

The axis of the motor 651 'is arranged in the left-right direction.

The motor 651 'is disposed below the locking plate 500'. The motor 651 'is disposed in the rear middle of the first housing 110'.

The worm gear 653 'is installed on the lower right side of the locking plate 500'. The worm gear 653 'may be formed integrally with the locking plate 500'.

Further, a sensor pressing part 521 'protrudes upward to the left of the locking plate 500'.

The sensor pressing part 521 'presses the locking sensor 907 when the door is locked. The locking sensor 907 may be provided as a limit switch. Thus, the locking sensor 907 senses the door lock through the locking plate 500 '.

The locking sensor 907 is disposed on the rear surface of the first housing 110 'and is disposed to be spaced from the left end of the first housing 110'.

73, when the door latch system is installed on the door 1, the motor 651 'of the locking driving portion 650' and the child lock motor (not shown) of the child- 750 'are disposed closer to the upper portion of the vehicle than the striker insertion groove to prevent flooding.

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: Sliding member
1450:
1500: Locking plate
1600:
1700: Child locking member
1800: Door lever connection
1900: PCB

Claims (1)

housing;
A latch rotatably installed in the housing;
A main locking member slidably installed in the housing to lock the latch;
A sliding member slidably installed in the housing and disposed on one side of the main locking member;
A locking lever portion rotatably installed on one of the main locking member and the sliding member and having a locking protrusion;
And a locking protrusion formed on the other one of the main locking member and the sliding member to receive the locking protrusion,
And a latch lever shaft of the latch lever part is disposed in a vertical direction.

Images