KR101640684B1 - Apparatus for locking seat back of rear seat - Google Patents

Apparatus for locking seat back of rear seat Download PDF

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Publication number
KR101640684B1
KR101640684B1 KR1020140190945A KR20140190945A KR101640684B1 KR 101640684 B1 KR101640684 B1 KR 101640684B1 KR 1020140190945 A KR1020140190945 A KR 1020140190945A KR 20140190945 A KR20140190945 A KR 20140190945A KR 101640684 B1 KR101640684 B1 KR 101640684B1
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KR
South Korea
Prior art keywords
latch
control plate
striker
stopper
plate
Prior art date
Application number
KR1020140190945A
Other languages
Korean (ko)
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KR20160079993A (en
Inventor
유지민
전태환
Original Assignee
현대다이모스(주)
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Priority to KR1020140190945A priority Critical patent/KR101640684B1/en
Publication of KR20160079993A publication Critical patent/KR20160079993A/en
Application granted granted Critical
Publication of KR101640684B1 publication Critical patent/KR101640684B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/2245—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable provided with a lock mechanism on the upper part of the back-rest
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/32—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use
    • B60N2/36—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a loading platform
    • B60N2002/363—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a loading platform characterised by provisions for enhancing the cargo floor surface, e.g. elements closing gaps or enlarging the back-rest surface

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat back locking apparatus for a rear seat, in which a seat back 1a of a rear seat 1 is locked by a fastening force between a striker 10 and a latch 20, 20 can be adjusted in the longitudinal direction of the seat back 1a by the operation of the control plate 30 and the stopper mechanism 40. [

Figure R1020140190945

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a seat back locking device for a rear seat,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat back locking apparatus for a rear seat, and more particularly, to a seat back locking apparatus for a rear seat provided with a locking function for fixing a seat back position with respect to a vehicle body and an angle adjusting function for a seat back.

Generally, a leisure vehicle (RV, SUN, etc.) having a luggage room is folded forward to fold the seat back of the rear seat in order to expand the space of the luggage room as needed when loading the cargo into the luggage room Respectively.

Therefore, when unfolding the seatback, the seatback must be kept in the locked state and the locking state of the seatback must be released for folding. For this purpose, as shown in FIG. 1, The seat back 1a is provided with the latch 2 and the pawl 3 and the striker 5 is provided on the side of the body 4 opposed to the latch 2.

1, the striker 5 is inserted into the latch 2 to be held in the locked state by the restraint of the pawl 3, so that the seat back 1a is folded When the passenger operates the release lever 6, the latch 2 is released from the restraint of the striker 5 by the rotation of the pawl 3 and the latch 2. At the same time, the cable 7 is pulled, 8, the seat back 1a of the rear seat 1 rotates forward to be in a folded state.

However, the conventional seat back locking device has a locking function of fixing only the position of the seat back 1a with respect to the vehicle body 4 and can not adjust the angle of the seat back 1a in the longitudinal direction. There is a disadvantage that it is necessary to additionally provide a mechanical structure for adjusting the angle of the seat back 1a in the longitudinal direction.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

Korean Patent Publication No. 10-2003-0013956

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a seat back locking device for a rear seat that is provided with a locking function for fixing a seat back position with respect to a vehicle body, And to enhance the convenience of rear seat passengers and to improve the marketability thereof.

In order to achieve the above-mentioned object, a seat back locking apparatus of a rear seat of the present invention includes: a striker fixed to a vehicle body and protruding toward a seat back of a rear seat; A latch rotatably installed at a portion opposed to the striker in the seatback, the latch being opened in a direction toward the striker; A control plate disposed at one side of the latch and connected to the latch so as to rotate in conjunction with the latch, the control plate controlling the rotation angle of the latch; And a stopper mechanism provided at one end of the control plate and protruding at the other end toward the outside of the seatback to control an angle of rotation of the control plate to determine an angle in the forward and backward direction of the seatback.

A latch bracket is fixedly installed on a portion of the seat back opposed to the striker; The latch bracket is formed with an insertion hole that is opened toward the striker and is cut along the direction in which the striker protrudes so that the striker can be inserted and removed at a portion opposed to the striker.

A latch shaft and a plate shaft are fixed to both sides of the insertion hole in the latch bracket, respectively; Wherein the latch and the control plate are respectively installed through the latch shaft and the plate shaft so as to be rotatable about the latch shaft and the plate shaft; The latch and the control plate are installed so as to overlap each other and have a connection structure with each other so that the latch and the control plate can rotate together with the overlapping portion.

A latch spring which is provided at both ends of the latch and the latch shaft so as to be fixed and which is compressed when the latch is rotated in one direction while the striker is inserted into the fastening groove and provides an elastic force to rotate the latch in the other direction when the striker is detached from the fastening groove, ; The control plate is fixed to both ends of the control plate and the plate shaft. The control plate is compressed when the control plate rotates in the other direction in conjunction with the unidirectional rotation of the latch. The control plate is rotated in one direction And a plate spring for providing a plate spring.

A connection hole is formed in a portion of the control plate overlapping the latch; The latch may have a protrusion formed thereon and the protrusion is inserted into the connection hole for connection with the control plate.

Further comprising: a plurality of stopper grooves formed at a portion of the control plate not overlapped with the latch, the plurality of stopper grooves being open to the outer periphery of the control plate and being cut toward the center of the plate axis and spaced along the outer circumference of the control plate; And the stopper mechanism is inserted into the stopper groove at the time of rotation of the control plate to control the rotation angle of the control plate.

Wherein the stopper mechanism includes a stopper pin having one end thereof being in contact with the control plate and the other end thereof being protruded to the outside of the seatback in a state of passing through the latch bracket and one end of the stopper pin being in contact with the control plate, And a stopper spring installed at both ends of the stopper pin and the latch bracket to provide an elastic force to the stopper pin so that the stopper pin moves toward the control plate.

Wherein the latch bracket is formed with a bracket projection protruding toward the latch; Wherein the latch has a protruding groove into which the bracket protrusion is inserted, the protruding groove being formed along the rotational radius of the latch; Wherein both side surfaces of the protrusion groove are rotation angle control surfaces for controlling the maximum rotation angle of the latch when the latch is rotated in one direction while the striker is inserted into the engagement groove on one side thereof in contact with the bracket projection at the time of rotation of the latch, Is a return angle control surface for controlling the return angle of the latch when the latch is rotated in the other direction while the striker is disengaged from the fastening groove.

According to the present invention, the seat back of the rear seat is locked by the engagement force of the striker and the latch, and the angle of the seat back in the forward and backward directions can be adjusted by the operation of the control plate and the stopper mechanism in a state in which the striker and the latch are engaged , The convenience of the rear seat passenger can be further improved, and thus the commerciality can be improved.

In addition, the present invention is configured such that the configuration for adjusting the angle of the seat back is constituted by a control plate and a stopper mechanism connected to the latch, and the structure is simple and the weight There is an effect that the cost can be further reduced.

1 is a side view of a rear seat for explaining a conventional seat back locking apparatus;
FIG. 2 is a view for explaining a seat back locking apparatus according to the present invention, and is a unlocking state diagram of a striker and a latch,
FIG. 3 is a cross-sectional view illustrating a connection portion between a latch and a control plate according to the present invention,
4 to 6 are views for explaining a first-stage to third-stage locking state of the seat back locking apparatus according to the present invention,
7 is a view for showing a state in which a seat back angle is changed in a first-stage to third-stage locking state of the seat back locking apparatus according to the present invention.

Hereinafter, a seat back locking apparatus for a rear seat according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The seat back locking apparatus according to the present invention includes a striker 10 fixed to the vehicle body 4 and projecting toward the seat back 1a of the rear seat 1 as shown in Figs. 2 to 7; A latch 20 formed to be rotatably installed in a position facing the striker 10 in the seatback 1a and having a fastening groove 21 into which the striker 10 is inserted is opened in a direction toward the striker 20 ); A control plate 30 disposed at one side of the latch 20 and connected to the latch 10 so as to rotate in conjunction with the latch 10 to control the rotation angle of the latch 10; And a stopper mechanism (not shown) for detecting the forward and backward angles of the seat back (1a) by controlling the rotation angle of the control plate (300) so that one end thereof is in contact with the control plate (30) and the other end is protruded outside the seat back 40).

That is, in the embodiment of the present invention, the locking function of fixing the position of the seat back 1a by the engagement of the striker 10 and the latch 20 is performed, and in the state where the striker 10 and the latch 20 are engaged It is possible to adjust the angle of the seat back 1a in the front-rear direction in accordance with the change of the rotation angle of the latch 20 by the control plate 30, thereby improving the convenience of the passenger.

A latch bracket 50 is fixed to a portion of the seat back 1a opposed to the striker 10 and a portion of the latch bracket 50 opposed to the striker 10 is inserted and removed An insertion hole 51 is formed which is opened toward the striker 10 and is cut along the direction in which the striker 10 is projected.

That is, in order for the striker 10 to be inserted into the engagement groove 21 of the latch 20, the insertion hole 51 is formed in the latch bracket 50 for this purpose . The insertion hole (51) has a structure connected to the coupling groove (21).

A latch shaft 61 and a plate shaft 62 are fixed to both sides of the insertion hole 51 in the latch bracket 50. The latch 20 and the control plate 30 are fixed to the latch shaft 61, And the plate shaft 62. The latch 20 and the control plate 30 are installed so as to partially overlap each other and are overlapped with each other. The latch 20 and the control plate 30 are connected to each other so that the latch 20 and the control plate 30 can rotate together.

In the present invention, both ends of the latch 20 and the latch shaft 61 are fixedly mounted. When the latch 20 is inserted into the engaging groove 21 in the direction of the arrow R1 in FIG. 2, A latch spring 63 which is compressed when rotated to rotate the latch 20 in the other direction (in the direction of the arrow R2 in Fig. 2) when the striker 10 is released from the engagement groove 21; And the control plate 30 is provided with both ends fixed to the plate shaft 62. When the control plate 30 rotates in one direction (the direction of arrow R1 in FIG. 2) of the latch 20, (Direction of the arrow R3 in FIG. 2) so that the control plate 30 can be rotated in one direction (in the direction of the arrow R4 in FIG. 2) in cooperation with the rotation of the latch 20 in the other direction And a plate spring (64) for providing a plate spring (64).

The latch spring 63 and the plate spring 64 are preferably spiral springs, but are not limited thereto.

Therefore, when no external force is applied to the latch 20 and the control plate 30, the latch 20 and the control plate 30 are urged by the elastic force of the latch spring 63 and the plate spring 64, A force to rotate in the direction of the arrow R2 and the direction of the arrow R4 shown in Fig.

In the present invention, a connection hole 31 is formed in a portion of the control plate 30 overlapping with the latch 20, and a coupling protrusion 22 is protruded from the latch 20, and the coupling protrusion 22 Is inserted into the connection hole 31 for connection with the control plate 30.

The control plate 30 is formed at a portion of the control plate 30 that does not overlap with the latch 20 and is open toward the outer periphery of the control plate 30 and is cut toward the center of the plate axis 62, And a plurality of stopper grooves 32, 33, 34 formed to be spaced along the outer circumference of the stopper grooves 32, 33, 34.

The stopper grooves 32, 33 and 34 are formed of a plurality of stopper grooves as shown in the figure. The stopper grooves 32, 33, The angle can be controlled at various angles.

One end of the stopper mechanism 40 is in contact with the control plate 30 while the other end of the stopper mechanism 40 is protruded to the outside of the seatback 1a while passing through the latch bracket 50, A stopper pin 41 inserted into one of the stopper grooves in accordance with the rotation of the stopper pin 30 and a stopper pin 41 provided at both ends of the stopper pin 41 and the latch bracket 50, And a stopper spring 42 for applying an elastic force to the stopper pin 41 so as to move toward the stopper pin 30.

The stopper spring 42 is preferably a compression spring, but is not limited thereto.

According to the present invention, the latch bracket 50 is formed with a bracket projection 65 protruding toward the latch 20, and a projection groove 23 into which the bracket projection 65 is inserted is formed in the latch 20, 20, both side surfaces of the protrusion groove 23 are in contact with the bracket protrusion 65 at the time of rotation of the latch 20, and one side surface thereof is a striker (not shown) Is a rotation angle control surface 23a for controlling the maximum rotation angle of the latch 20 when the latch 20 is inserted into the engagement groove 21 and the latch 20 rotates in one direction (the direction of arrow R1 in Fig. 2) The side surface is provided with a return angle control surface 23b for controlling the return angle of the latch 20 when the latch 20 is rotated in the other direction (direction of arrow R2 in Fig. 2) while the striker 10 is disengaged from the engagement groove 21. [ .

Hereinafter, the operation of the embodiment of the present invention will be described.

2 is an unlocked state in which the striker 10 and the latch 20 are not engaged with each other.

In this state, if the seat back 1a of the rear seat 1 is rotated toward the striker 10, the insertion of the striker 10 into the insertion hole 51 of the latch bracket 50 is started and the striker 10 is fastened When the latch 20 is inserted into the groove 21 and comes into contact with the latch 20, the latch 20 rotates about the latch shaft 61 in the direction of the arrow R1 in FIG. 2 and the latch spring 63 compresses and accumulates the elastic force do.

When the latch 20 rotates, the control plate 30 connected to the coupling protrusion 22 through the coupling hole 31 also rotates in the direction of the arrow R3. The plate spring 64 compresses the elastic force, The stopper pin 41 is inserted into the stopper groove 32 of the first stage as shown in FIG. 4 by the restoring force of the stopper spring 42. At this time, the striker 10 and the latch 20 are engaged, The seat back 1a of the rear seat 1 is maintained in a forward standing state as shown in state A in Fig.

4, the passenger pulls the stopper pin 41 in the outward direction of the seat back 1a (upward in the state shown in Fig. 4) to pull the stopper pin 41 out of the one-step stopper groove 32 When the seat back 1a is further rotated toward the striker 10, the striker 10 inserts the insertion hole 51 inward more and the latch 20 rotates more in the direction of the arrow R1 and the control plate 30 Is further rotated in the direction of the arrow R3 so that the two-step stopper grooves 33 are positioned so as to face the stopper pins 41. [

5, the stopper pin 41 is inserted into the two-step stopper groove 33 to establish a fastened state. At this time, when the stopper pin 41 of the rear seat 1 is closed, As shown by the state B in FIG. 7, the rear end 1a is rotated backward by a predetermined angle to maintain the angle.

5, the stopper pin 41 is pulled out of the seatback 1a so that the stopper pin 41 is pulled out of the two-step stopper groove 33 and the seatback 1a is moved to the striker 10, the stopper grooves 34 of the three stages are opposed to the stopper pin 41. When the stopper pin 41 pulled in the above state is released, The seat back 1a of the rear seat 1 is further rotated rearward as shown by the state C in FIG. 7 to be in an angle-adjusted state .

6, the maximum rotation angle of the latch 20 and the control plate 30 is controlled as the rotation angle control surface 23a of the latch 20 contacts the bracket projection 65. [

The rotation angle control surface 23a of the latch 20 is formed on the basis of a state in which the stopper pin 41 is inserted into the three-step stopper groove 34. The number of the stopper grooves 34 The position of the rotation angle control surface 23a may be designed in accordance with the final stopper groove.

6, when the stopper pin 41 is pulled out of the three-step stopper groove 33 for the forward rotation angle adjustment and the unlocking state of the seatback 1a, the compressed latch spring 63 and the plate The spring 64 is restored and the latch 20 and the control plate 30 are rotated in the directions of arrows R2 and R4 in Fig. 2, whereby the seatback 1a is rotated forward to adjust the angle, 2, the striker 10 is completely disengaged from the engagement groove 21 of the latch 20 and is brought into the unlocked state.

2, the return rotation angle of the latch 20 and the control plate 30 is controlled as the return angle control surface 23b of the latch 20 contacts the bracket projection 65. In this state,

As described above, according to the embodiment of the present invention, the seat back 1a of the rear seat 1 is locked by the fastening force of the striker 10 and the latch 20, and the striker 10 and the latch 20, It is possible to further improve the convenience of the rear seat passenger in a configuration in which the backrest angle of the seat back 1a can be adjusted by the operation of the control plate 30 and the stopper mechanism 40 in a state in which the rear seat passenger is fastened, There is an advantage that the commerciality can be improved.

The present invention is configured such that the configuration for adjusting the angle of the seat back 1a is constituted by the control plate 30 and the stopper mechanism 40 connected to the latch 20 and has a structure compared to a conventional structure such as a recliner There is also an advantage of being simple, reducing weight, and further reducing costs.

While the invention has been shown and described with respect to the specific embodiments thereof, 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 of the invention, It will be apparent to those of ordinary skill in the art.

1 - Rear Seat 1a - Seatback
4 - Body 10 - Striker
20 - Latch 30 - Control plate
40 - Stopper mechanism 50 - Latch bracket

Claims (8)

A striker fixed to the vehicle body and projected toward the seat back of the rear seat;
A latch which is rotatably installed at a portion of the seat back opposed to the striker and is open in a direction in which the engaging groove into which the striker is inserted faces the striker;
A control plate disposed at one side of the latch and connected to the latch so as to rotate in conjunction with the latch, the control plate controlling the rotation angle of the latch; And
And a stopper mechanism that is provided at one end thereof in contact with the control plate and at the other end of the seatback so as to protrude outwardly to determine an angle in the forward and backward direction of the seatback by controlling the rotation angle of the control plate;
Wherein the control plate has a plurality of stopper grooves spaced along an outer circumference of the control plate while being opened to the outer periphery of the control plate;
Wherein the stopper mechanism is inserted into the stopper groove at the time of rotation of the control plate to control the rotation angle of the control plate. The method according to claim 1,
A latch bracket is fixedly installed on a portion of the seat back opposed to the striker;
Wherein an insertion hole is formed in a portion of the latch bracket opposite to the striker, the insertion hole being opened toward the striker so that the striker can be inserted and removed, and is cut along the direction in which the striker is projected. The method of claim 2,
A latch shaft and a plate shaft are fixed to both sides of the insertion hole in the latch bracket, respectively;
Wherein the latch and the control plate are respectively installed through the latch shaft and the plate shaft so as to be rotatable about the latch shaft and the plate shaft;
Wherein the latch and the control plate are provided so as to overlap each other and have a connection structure with each other so that the latch and the control plate can rotate together with the overlapping portion. The method of claim 3,
A latch spring which is provided at both ends of the latch and the latch shaft so as to be fixed and which is compressed when the latch is rotated in one direction while the striker is inserted into the fastening groove and provides an elastic force to rotate the latch in the other direction when the striker is detached from the fastening groove, ; And
The control plate and the plate shaft are fixed at both ends thereof. The control plate is compressed when the control plate rotates in the other direction in conjunction with the unidirectional rotation of the latch. The elasticity of the control plate is changed so as to rotate the control plate in one direction And a plate spring provided to the rear seat to lock the seat back. The method of claim 3,
A connection hole is formed in a portion of the control plate overlapping the latch;
Wherein a latching protrusion is formed on the latch, and the latching protrusion is inserted into the connection hole for connection with the control plate. The method of claim 3,
Wherein the stopper groove is formed in a portion of the control plate not overlapped with the latch, and is formed to be cut toward the center of the plate shaft. The method of claim 6,
Wherein the stopper mechanism includes a stopper pin having one end thereof being in contact with the control plate and the other end thereof being protruded to the outside of the seatback in a state of passing through the latch bracket and one end of the stopper pin being in contact with the control plate, And
And a stopper spring installed at both ends of the stopper pin and the latch bracket to provide an elastic force to the stopper pin so that the stopper pin moves toward the control plate. The method of claim 2,
Wherein the latch bracket is formed with a bracket projection protruding toward the latch;
Wherein the latch has a protruding groove into which the bracket protrusion is inserted, the protruding groove being formed along the rotational radius of the latch;
Wherein both side surfaces of the protrusion groove are rotation angle control surfaces for controlling the maximum rotation angle of the latch when the latch is rotated in one direction while the striker is inserted into the engagement groove on one side thereof in contact with the bracket projection at the time of rotation of the latch, Is a return angle control surface for controlling the return angle of the latch when the latch is rotated in the other direction while the striker is disengaged from the engagement groove.
KR1020140190945A 2014-12-26 2014-12-26 Apparatus for locking seat back of rear seat KR101640684B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140190945A KR101640684B1 (en) 2014-12-26 2014-12-26 Apparatus for locking seat back of rear seat

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Application Number Priority Date Filing Date Title
KR1020140190945A KR101640684B1 (en) 2014-12-26 2014-12-26 Apparatus for locking seat back of rear seat

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KR101640684B1 true KR101640684B1 (en) 2016-07-19

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Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
KR102021721B1 (en) * 2019-05-31 2019-09-16 이병직 special vehicles having work and rest fucntion
KR102599492B1 (en) * 2022-06-03 2023-11-08 대원산업 주식회사 Round shape type latch apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05156854A (en) * 1991-12-02 1993-06-22 Mitsui Mining & Smelting Co Ltd Vehicle door locking device
KR100461110B1 (en) 2001-08-10 2004-12-13 현대자동차주식회사 Seat back locking device for an automobile
KR100538385B1 (en) * 2004-01-14 2005-12-22 평화정공 주식회사 Anti-rocking seat-back latch
KR20080050768A (en) * 2006-12-04 2008-06-10 기아자동차주식회사 Locking apparatus of automobile rear seatback for vehicle
KR101356136B1 (en) * 2011-08-22 2014-01-28 (주)케이엠앤아이 Seat-back Latch for Motor Vehicle

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