CN109130969B - Locking device for vehicle seat rail - Google Patents
Locking device for vehicle seat rail Download PDFInfo
- Publication number
- CN109130969B CN109130969B CN201711429779.9A CN201711429779A CN109130969B CN 109130969 B CN109130969 B CN 109130969B CN 201711429779 A CN201711429779 A CN 201711429779A CN 109130969 B CN109130969 B CN 109130969B
- Authority
- CN
- China
- Prior art keywords
- locking
- guide
- rail
- fixed
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
- B60N2/0831—Movement of the latch
-
- 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
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
-
- 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
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
- B60N2/0831—Movement of the latch
- B60N2/0837—Movement of the latch pivoting
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The present invention relates to a locking device of a vehicle seat rail, comprising: a locking guide combined with the bottom surface of the movable guide rail; a locking wedge part which is vertically movably arranged between the movable guide rail and the locking guide and penetrates through the locking guide and is clamped in the locking hole of the fixed guide rail to play a locking role is formed at the lower end of the locking wedge part; a guide bracket guiding the locking member not to be disengaged when vertically moving in the locking guide; a lock lever rotatably coupled to one end of both ends of the locking guide, moving the locking member upward, and releasing the locking member locked to the fixed rail; and a locking spring coupled to an end portion opposite to both end portions of the locking guide to which the lock lever is hingedly fixed, and elastically supporting the locking piece on the locking guide. The existing hinge part for hinging and fixing the lock rod and the locking guider are integrated, thereby reducing the number of accessories and saving the product cost.
Description
Technical Field
The present invention relates to a locking device for a seat rail of a vehicle, and more particularly, to a locking device for a seat rail, which locks a seat on a rail so as not to move on the seat rail.
Background
The seat rail is generally used to move a seat in the front-rear direction of a vehicle, and includes a fixed rail fixed to an indoor floor, and a moving rail that moves in the front-rear direction of the vehicle along the fixed rail and is coupled to a seat cushion of the vehicle.
The seat rail is also provided with a locking device for temporarily fixing the moving rail to the fixed rail. The locking device is convenient for a passenger to move the seat forwards and backwards when the passenger sits on the seat, and then fixes the seat on the seat guide rail when the seat is in a proper position.
The conventional seat rail locking apparatus includes: a locking guide fixed on the moving guide rail; hinge brackets fixed to both end portions of the locking guide; a locking part which can be combined with the locking guider in a vertically moving way and is locked on the fixed guide rail; a locking bar for vertically operating the locking member; a combination bracket which can make the locking piece move up and down on the locking guider and prevent the locking piece from separating; a locking spring for providing an elastic force for pressing the locking piece to the lower side.
The locking guide is U-shaped, the central part of the locking guide is provided with a groove part, the two end parts of the upper end are bent and fixed on the bottom surface of the moving guide rail, and the lower part of the locking guide is provided with a through hole which enables the locking piece to protrude downwards.
The hinge brackets are combined with the lower sides of the two end parts of the locking guide and fixed on the bottom surface of the movable guide rail, and a hinge part is formed by protruding towards the opposite side of the locking guide.
The locking piece is movably combined with the groove part at the central part of the locking guide, a plurality of locking wedge parts are formed at the lower end part in a protruding way, and the locking piece is clamped in the locking hole of the fixed guide rail after protruding towards the lower side of the locking guide through the through hole of the locking guide. The side of the locking piece is formed with a clamping wedge part which is clamped by the end of the locking spring.
The locking bar is hinged with a hinge part of a hinge bracket fixed at one end of the locking guider and connected with the locking piece to enable the locking piece to reciprocate up and down.
The connecting bracket is connected to the groove part for preventing the lock combined with the groove part of the locking guide from being separated, and two side surfaces of the lock penetrate through to expose the side surface part of the lock outwards.
The locking spring is fixed on the hinge bracket, elastically supports the locking piece and presses the locking piece downwards.
In the conventional seat rail locking apparatus, the locking spring is caught by an engaging wedge of the locking member exposed outward from the side surface of the coupling bracket, so that the side surface of the locking member is elastically supported.
At this time, the end of the locking spring is disengaged from the engaging wedge of the locking piece, so that the operation of the locking device becomes unstable, and the number of parts for locking is excessive, thereby increasing the manufacturing cost.
Disclosure of Invention
[ problem ] to provide a method for producing a semiconductor device
The invention aims to provide a locking device for a vehicle seat guide rail, which can reduce the number of accessories for locking, can structurally prevent an elastic component of a pressurizing locking piece from being separated, can stabilize the locking operation of the seat guide rail and save the product cost.
[ technical solution ] A
The invention comprises the following steps: a locking guide combined with the bottom surface of the movable guide rail; a locking wedge part which is vertically movably arranged between the movable guide rail and the locking guide and penetrates through the locking guide and is clamped in the locking hole of the fixed guide rail to play a locking role is formed at the lower end of the locking wedge part; a guide bracket guiding the locking member not to be disengaged when vertically moving in the locking guide; a lock lever rotatably coupled to one end of both ends of the locking guide, moving the locking member upward, and releasing the locking member locked to the fixed rail; and a locking spring coupled to an end portion opposite to both end portions of the locking guide to which the lock lever is hingedly fixed, and elastically supporting the locking piece on the locking guide.
Preferably, the locking guide is formed with a fixing portion formed by bending both end portions of the locking guide upward and then horizontally bending the same to be fixed to the bottom surface of the moving guide, a groove portion formed at the center of the locking guide to allow the locking piece to be movably disposed, and a hinge portion extended from the fixing portion to hinge and fix the locking lever.
Preferably, a through hole is formed in a bottom surface of the groove of the locking guide, and a locking wedge of a locking piece provided in the groove is inserted into the through hole and protrudes downward, and a locking ridge is formed at both side edge portions of the bottom surface of the groove of the locking guide to protrude upward, so as to prevent the guide bracket clamped in the groove from being separated.
Preferably, the locking member has engaging wedges protruding from both sides thereof, so that the end of the locking rod is caught at the lower side of the locking member and the end of the locking spring is caught at the upper side of the locking member.
Preferably, the lock spring is formed by winding one end of a coupling portion of the hinge portion on both sides of the lock guide, the coupling portion being hinged to a hinge portion on the opposite side to the side to which the lock lever is fixed, into a ring shape, and includes a support portion that extends toward the groove portion side of the lock guide and is supported by the fixing portion of the lock guide.
[ PROBLEMS ] the present invention
According to the invention, the lock rod has the advantages that the existing independent hinge part for fixedly hinging the lock rod is integrated with the locking guider, so that the number of accessories is reduced, the weight of a product is further reduced, and the cost of the product is saved;
the locking piece is accommodated to the groove part of the locking guide through the guide bracket, the end part of the locking spring elastically supported by the locking piece is supported by the inner side of the side surface part of the guide bracket, and the locking spring is prevented from being separated from the locking piece when the locking device operates.
Drawings
FIG. 1 is a perspective view illustrating a seat track latch arrangement according to one embodiment of the present invention;
FIG. 2 is an exploded perspective view illustrating the seat track latch of FIG. 1;
FIG. 3 is a front view illustrating a state in which the seat rail locking device of FIG. 1 is locked;
fig. 4 is a front view illustrating a state in which locking of the seat rail locking apparatus of fig. 1 is released.
[ notation ] to show
100: a seat track locking device;
110: a locking guide;
111: a fixed part; 112: a through hole;
113: a hinge portion; 114: clamping the ridge;
120: a lock;
121: locking the wedge; 122: clamping the wedge-shaped part;
130: a guide bracket;
131: a side surface portion; 132: a through hole;
140: a lock lever;
150: a locking spring;
151: a bonding section; 152: a support portion.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the accompanying drawings. In this process, the thickness of the lines and the size of the members illustrated in the drawings are exaggerated for clarity and convenience of description, and the following terms are defined according to the functions of the present invention, and are different from the intention of the user and the operator or the conventional practice, so that the terms are defined based on the entire contents of the present specification.
Fig. 1 is a perspective view illustrating a seat rail lock apparatus according to an embodiment of the present invention, fig. 2 is an exploded perspective view illustrating the seat rail lock apparatus of fig. 1, fig. 3 is a front view illustrating a state in which the seat rail lock apparatus of fig. 1 is locked, and fig. 4 is a front view illustrating a state in which locking of the seat rail lock apparatus of fig. 1 is released.
As shown in the drawings, a locking apparatus 100 for a seat rail of a vehicle according to an embodiment of the present invention is combined with a moving rail that moves on a fixed rail, for temporarily fixing the moving rail to the fixed rail, and includes: a locking guide combined with the moving guide; a locking unit 120 vertically moving with the locking guide 110 and the moving guide and locked on the fixed guide to perform a locking function; a guide bracket 130 preventing the locking piece 120 from being separated from the locking guide 110; a locking bar 140 rotatably coupled to the locking guide 110 to operate the locking unit 120; a locking spring 150 elastically supporting the locking bar 140.
First, the fixed rail is fixed to the vehicle floor, and the moving rail is fixed to the seat. The moving rail is movably coupled to an upper side of the fixed rail and is temporarily fixed to the fixed rail using the seat rail locking apparatus of the embodiment of the present invention. A plurality of locking holes are formed on the fixed rail for locking the moving rail by a locking device of the seat rail.
The locking guide 110 is fixed on the bottom surface of the moving rail, and is formed by bending a plate having a certain length several times, and vertically bending both side portions upward based on the certain length of the central portion, and then horizontally bending both ends again.
Then, the locking guide 110 is formed with fixing portions 111 at both ends thereof to be closely adhered to the bottom surface of the moving guide and fixed by other tightening means. A groove portion is formed at a central portion of the locking guide 110 so that the locking member 120 is movably coupled.
The bottom surface of the groove of the locking guide 110 forms a through hole 112 that protrudes downward after the lower end of the locking piece 120 is clamped. That is, a locking wedge 121 formed at a lower end of a locking piece 120, which will be described later, protrudes to a lower side of the locking guide 110 through the through hole 112 and is clamped to a locking hole formed at the fixed rail.
The ends of the fixing portions 111 provided on both sides of the locking guide 110 are protruded to form hinge portions 113, respectively. The hinge portion 113 is formed with a hinge hole into which a hinge pin is inserted, for fixing the lock lever 140 to be described later by hinge and fixing the lock spring 150 to be described later.
A locking jaw 114 is formed at both sides of the bottom surface of the groove of the locking guide 110 in a protruding manner, and the locking jaw 114 prevents the guide bracket 130 engaged with the groove from being separated from the groove.
The lock 120 is formed in a ring shape at the upper end in a state where a plate-shaped member having a predetermined length is erected. A plurality of locking wedges 121 are formed at the lower end of the locking piece 120 to be clamped in the through-hole 112 of the locking guide 110 and to be clamped upward to protrude toward the lower side of the locking guide 110.
A side surface of the locking unit 120 is formed with a catching wedge 122 in which one end of the locking lever 140 and one end of the locking spring 150 are caught. That is, one end of the lock lever 140 is caught by the lower side of the engaging wedge 122 of the locker 120, and the end of the lock spring 150 is caught by the upper side of the engaging wedge 122 and supported.
The guide bracket 130 is coupled to the groove of the lock guide 110, and prevents the lock 120 received in the groove of the lock guide 110 from being separated from the groove when moving up and down. The guide bracket 130 is coupled to the groove portion in a sandwiched manner, and has a box shape with an open lower portion to cover both side portions and an upper portion of the groove portion. Both side surfaces 131 of the guide bracket 130 are caught inside the engaging ridges 114 of the lock guide 110 to prevent the side surfaces from being separated in the groove portions.
A through hole 132 is formed on the upper surface of the guide bracket 130, and the upper end of the locking piece 120 is inserted into the through hole 132 and protrudes upward.
The lock lever 140 is hinged and fixed at one end of the lock guide 110 at the center thereof by a hinge pin, and is interlocked with an operation lever (not shown) operated when the occupant wants to adjust the seat position. The linkage structure with the operation lever is omitted here.
The locking lever 140 is bent at one end thereof into an "L" shape and is coupled to an operating lever operated by a passenger. The other end of the lock lever 140 extends to the groove of the locking guide 110 through the lower side of the fixing portion 111 of the locking guide 110, and further reaches the lower side of the engaging wedge 122 formed on the side surface of the locker 120.
When the occupant operates the operating lever, the lock lever 140 moves downward in conjunction with the operating lever and rotates about a portion fixed to the lock guide in a hinged manner, and then moves upward to lift the latch 120 by moving up the other end portion caught on the lower side of the engagement wedge portion of the latch 120. At this time, the locking wedge 121 of the locking piece 120 is disengaged from the locking hole of the fixed rail, thereby releasing the locked state of the seat rail.
The locking spring 150 is fixed to the opposite end (the other end) of the locking guide 110 to which the locking lever 140 is fixed, and elastically supports the locking piece 120, and presses the locking piece 120 downward by the elastic force.
The locking spring 150 has one end coupled to the other end of the locking guide 110 via a hinge pin, and the other end hooked on the engaging wedge 122 of the lock 120. That is, after the other end of the lock spring 150 is fixed to the hinge portion 113 of the lock guide 110, the one end enters the groove portion of the lock guide 110, and the engagement wedge portion 122 of the lock 120 is caught upward.
The locking spring 150 is formed by winding a coupling portion 151 at one end portion coupled to the other end portion of the locking guide 110 with a hinge pin. The lock spring 150 includes a support portion 152 extended toward the lock 120 by the hinge portion 113 and supported by the bottom surface of the other fixing portion 111 of the lock guide 110.
That is, the support portion 152 of the locking spring 150 is configured such that the coupling portion 151 of the locking spring 150 is supported by the locking guide 110 in order to generate a downward pressing force on the locking spring 150 pressing the locking piece 120 downward when the locking lever 140 is rotated in conjunction with the user's operation of the operation lever to lift the locking piece 120 upward.
The following briefly describes the functions of a locking device of a seat rail for a vehicle according to an embodiment of the present invention.
First, after a passenger sits down on a seat in a vehicle, if the position of the seat is perceived as inconvenient, the position of the seat is readjusted. At this time, the occupant operates the operation lever around the seat, such as the lower portion or the side portion of the seat. At this time, the seat rail locking apparatus is in a locked state, that is, a state in which the moving rail is fixed to the fixed rail, and the locking wedge 121 of the locking member 120 is clamped to the locking hole of the fixed rail.
When the occupant operates the operating lever, lock lever 140 is interlocked by the operating lever. That is, the lock lever 140 rotates around the center portion at the hinge portion 113 at one end portion of the lock guide 110.
At this time, the end of the lock lever 140 interlocked with the operation lever is lowered, and the opposite end presses the engagement wedge 122 of the lock 120 upward under the bottom, thereby lifting the lock 120. The locking wedge 121 of the locking member 120, which is clamped in the stationary rail locking hole, is then disengaged to release the locked state of the seat rail locking apparatus 100.
At the same time, an elastic force for pressing the latch 120 downward is generated in the latch spring 150 elastically supporting the engagement wedge 122 of the latch 120 upward.
The occupant then pulls or pushes the seat forward or backward in the vehicle to position it, and then lowers the operating lever to stop the operation.
In this way, the lock 120 moves downward by the elastic force of the lock spring 150 pressing the lock 120 downward, and the locking wedge 121 is clamped by the locking hole of the fixed rail, so that the seat rail locking device 100 is locked.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present invention.
Claims (4)
1. A latch device for a vehicle seat track, comprising:
a locking guide combined with the bottom surface of the movable guide rail;
a locking wedge part which is vertically movably arranged between the movable guide rail and the locking guide and penetrates through the locking guide and is clamped in the locking hole of the fixed guide rail to play a locking role is formed at the lower end of the locking wedge part;
a guide bracket guiding the locking member not to be disengaged when vertically moving in the locking guide;
a lock lever rotatably coupled to one end of both ends of the locking guide, moving the locking member upward, and releasing the locking member locked to the fixed guide rail; and
a locking spring which is combined with the end part opposite to the two end parts of the locking guide with the locking bar hinged and fixed, elastically supports the locking piece on the locking guide, supports the end part of the locking spring elastically supported by the locking piece by the inner side of the side surface part of the guide bracket,
the protruding block wedge portion that is formed with on the both sides face of latch fitting, and then the tip that makes the locking lever is blocked at the downside of latch fitting by block wedge portion, and the tip of locking spring is blocked at the upside of latch fitting by the same block wedge portion.
2. The locking device for a vehicle seat rail according to claim 1,
the locking guide is fixed on the bottom of the movable guide rail, the two ends of the locking guide are bent upwards and then horizontally bent to form a fixing part,
a groove portion in which the locking piece is movably disposed is formed at the center of the locking guide,
the locking guide is formed with a hinge part extended by the fixing part and hinge-fixing the locking lever.
3. The locking device for a vehicle seat rail according to claim 2,
a through hole is formed on the bottom surface of the groove part of the locking guider, a locking wedge part of the locking piece penetrates into the through hole and protrudes downwards,
the locking guide has two side edges with upwards raised clamping ridges to prevent the guide rack from separating.
4. The locking device for a vehicle seat rail according to claim 2,
the locking spring is formed by winding one side end of the joint part hinged with the hinge part at the opposite side of the fixed locking rod in the hinge parts at the two sides of the locking guide to form a ring,
the lock guide includes a support portion that extends toward the groove portion of the lock guide, and is supported by the fixing portion of the lock guide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170076930A KR101890113B1 (en) | 2017-06-16 | 2017-06-16 | Locking Device Of Vehicle Seat Rail |
| KR10-2017-0076930 | 2017-06-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109130969A CN109130969A (en) | 2019-01-04 |
| CN109130969B true CN109130969B (en) | 2022-06-21 |
Family
ID=63453783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711429779.9A Active CN109130969B (en) | 2017-06-16 | 2017-12-26 | Locking device for vehicle seat rail |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101890113B1 (en) |
| CN (1) | CN109130969B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102747831B1 (en) | 2019-11-29 | 2024-12-31 | 주식회사 다스 | Seat rail locking device for vehicle |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4242895C1 (en) * | 1992-12-18 | 1993-11-25 | Daimler Benz Ag | Locking mechanism for car-seat lengthwise adjustment - has unlocking lever cam surface adjusting velocity ratio with actuating lever |
| DE4436221C1 (en) * | 1994-10-11 | 1996-02-22 | Keiper Recaro Gmbh Co | Locking device for vehicle seats |
| DE19709149B4 (en) * | 1997-03-06 | 2006-12-07 | C. Rob. Hammerstein Gmbh & Co. Kg | Mehrstiftarretiervorrichtung a Längsverstellvorrichtung a motor vehicle seat |
| KR100559459B1 (en) * | 2004-02-23 | 2006-03-10 | 주식회사다스 | Car Seat Rail Locking Device |
| KR200370562Y1 (en) * | 2004-09-24 | 2004-12-14 | 대원강업주식회사 | Sliding apparatus of seat for automobile |
| JP4939810B2 (en) * | 2006-01-27 | 2012-05-30 | 富士機工株式会社 | Vehicle seat slide device |
| KR101643889B1 (en) * | 2014-12-30 | 2016-08-01 | 현대다이모스(주) | Apparatus for locking seat-rail in vehicle |
| JP6386392B2 (en) * | 2015-02-13 | 2018-09-05 | アイシン精機株式会社 | Vehicle seat slide device |
| KR101634297B1 (en) | 2015-06-02 | 2016-07-01 | 대원정밀공업(주) | Locking device for seat track |
-
2017
- 2017-06-16 KR KR1020170076930A patent/KR101890113B1/en active Active
- 2017-12-26 CN CN201711429779.9A patent/CN109130969B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| KR101890113B1 (en) | 2018-08-21 |
| CN109130969A (en) | 2019-01-04 |
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