CN107878279A - A kind of backrest structure of automotive seat - Google Patents
A kind of backrest structure of automotive seat Download PDFInfo
- Publication number
- CN107878279A CN107878279A CN201711159730.6A CN201711159730A CN107878279A CN 107878279 A CN107878279 A CN 107878279A CN 201711159730 A CN201711159730 A CN 201711159730A CN 107878279 A CN107878279 A CN 107878279A
- Authority
- CN
- China
- Prior art keywords
- air bag
- air
- backrest
- check valve
- automotive seat
- 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.)
- Pending
Links
- 239000002775 capsule Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 2
- 241000070928 Calligonum comosum Species 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 238000007792 addition Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- ZINJLDJMHCUBIP-UHFFFAOYSA-N ethametsulfuron-methyl Chemical compound CCOC1=NC(NC)=NC(NC(=O)NS(=O)(=O)C=2C(=CC=CC=2)C(=O)OC)=N1 ZINJLDJMHCUBIP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012858 resilient material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- B60N2/64—Back-rests or cushions
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The present invention provides a kind of backrest structure of automotive seat applied to automotive trim parts technical field,Air pump (7) in the internal cavity (6) of the backrest (2) of the backrest structure of described automotive seat is connected by air inlet pipe (8) with air bag (4),Check valve I (9) is installed in air inlet pipe (8),Escape pipe (10) is also set up on air bag (4),Escape pipe (10) and atmosphere,Check valve II (11) is installed on escape pipe (10),The structure that the gas that check valve I (9) in air inlet pipe (8) is configured in entry deterrence air bag (4) flows back to air pump (7),The backrest structure of the automotive seat of the present invention,Only need relatively low cost,With regard to the regulation of the height of concave convex of the convenient and swift backrest front end for realizing arta vehicle seat unit of energy,Solve the sense of discomfort and the tingle problem of body brought when taking,Improve motor vehicle seat back comfort level.
Description
Technical field
The invention belongs to automotive trim parts technical field, is to be related to a kind of backrest of automotive seat more specifically
Structure.
Background technology
Automotive seat is part essential on automobile.On automobile, requirement of the people to the comfortableness of automotive seat
Also more and more higher.In automotive seat of the prior art, the structure and convex shape of backrest be it is fixed, it is different heights, fat or thin
Driver and crew take when, can not accordingly be adjusted so that different heights, fat or thin driver and crew take when, often
Sense of discomfort is brought, or even long-term take can cause body tingle.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of simple in construction, it is only necessary to relatively low cost is put into, with regard to energy
The regulation of the height of concave convex of enough convenient and swift backrest front ends for realizing arta vehicle seat unit, so as to meet different heights, fat or thin
The different demands that driver and crew take, effectively solve the sense of discomfort and the tingle problem of body brought when taking, effectively improve automobile
The backrest structure of the automotive seat of backrest comfort level.
Solves the problems, such as techniques discussed above, the technical scheme that the present invention takes is：
The present invention is a kind of backrest structure of automotive seat, and described automotive seat includes base, backrest, automotive seat
The backrest leading flank of backrest structure sets groove, places air bag in groove, backrest leading flank, which is also set up, to exist balloon occlusion
Crust in groove, also sets up cavity inside backrest, and installation air pump in cavity, air pump is connected by air inlet pipe with air bag, air inlet
Check valve I is installed on pipe, escape pipe, escape pipe and atmosphere are also set up on air bag, check valve II, air pump are installed on escape pipe
With the control unit of air pump start and stop can be controlled to be connected.
Described air bag includes air bag front end layer and air bag back end layers, and inside air bag sets spacing band, described spacing band
The air bag front end layer surface middle part of one end and air bag connects, spacing to connect with the air bag back end layers inner surface of the other end and air bag middle part
Connect.
Described air bag includes three, and three air bags are arranged from top to bottom, a spacing band is set in each air bag, each
Air bag is arranged to the structure connected with an adjacent air bag by connecting tube, three air bags be respectively top air bag, middle part air bag,
Lower airbag, air inlet pipe are arranged on the air bag of middle part, and escape pipe is arranged on the air bag of top.
The knot that the gas that check valve I in described air inlet pipe is configured in entry deterrence air bag flows back to air pump
Structure, when being applied to the setting pressure for the check valve II that the pressure on air bag is more than on escape pipe, check valve II is configured to beat
The structure opened, when check valve II is opened, the gas in air bag is configured to the structure being discharged into from escape pipe in air.
The volume of described top air bag is set greater than the structure of the volume of middle part air bag and the volume of lower airbag, on
The volume of portion's air bag is arranged to the structure equal with the volume of lower airbag.
The groove floor of described groove sets mounting groove, and mounting groove is arranged to recessed arcwall face structure, the gas of air bag
Capsule back end layers outer surface is pasted with mounting groove to be connected.
Top air bag mounting groove, middle part air bag mounting groove, lower airbag are set gradually in the groove floor of described groove
Mounting groove, the air bag back end layers of top air bag are pasted with top air bag mounting groove to be connected, and the air bag back end layers of middle part air bag are with
Portion's air bag mounting groove pastes connection, and the air bag back end layers of lower airbag are pasted with lower airbag mounting groove to be connected, described crust
It is arranged to the structure made of resilient material.
After described control unit control air pump is filled with gas into air bag, the air bag front end layer and air bag back end layers of air bag
Formation cross-section is the structure of the air bag cavity of ellipse.
After described control unit control air pump is filled with gas into air bag, air bag front end layer, the middle part gas of top air bag
It is in outwardly wave arcwall face structure between the air bag front end layer of capsule, the air bag front end layer of lower airbag, middle part air bag
Air bag front end layer protrusion height be set greater than top air bag air bag front end layer protrusion height structure, middle part air bag
Air bag front end layer protrusion height be equal to lower airbag air bag front end layer protrusion height structure.
Using technical scheme, following beneficial effect can be obtained：
The backrest structure of automotive seat of the present invention, when designing or making automotive seat, in leaning on for automotive seat
Carry on the back leading flank and groove is set, air bag is set in groove, and the muster or contraction of air bag is controlled by air pump, when driver and crew need
When backrest is outwardly, air pump is controlled to start by control unit, air pump is inflated by air inlet pipe into air bag, so that entering
The gas for entering air bag drives air bag to heave, and air bag, which is heaved, promotes crust to be flared out, and it is outwardly so to allow for backrest, meets
Different driver and crew's demands.And when driver and crew need air bag to shrink, it is only necessary to driver and crew apply extruding force on air bag,
When extruding force is more than the setting resistance of check valve II, it becomes possible to promote check valve II to open, the portion gas in air bag passes through
Escape pipe is discharged in air, and air bag shrinks, and air bag, which shrinks, drives crust to move inward, and so allows for backrest and is inwardly recessed, full
The different addition personnel demands of foot.The backrest structure of automotive seat of the present invention, it is simple in construction, it is only necessary to put into it is relatively low into
This, it becomes possible to the regulation of the height of concave convex of the convenient and swift backrest front end for realizing arta vehicle seat unit, meet different heights, fat or thin
The different demands taken of driver and crew, the sense of discomfort and body tingle problem brought when effectively solving to take, effectively improve vapour
Vehicle seat chair back comfort level.
Brief description of the drawings
Brief description is made to the content expressed by each accompanying drawing of this specification and the mark in figure below：
Fig. 1 is the structural representation of the backrest structure of automotive seat of the present invention；
Fig. 2 is the structural representation of the embodiment 2 of the backrest structure of automotive seat of the present invention；
Accompanying drawing acceptance of the bid note be respectively：1st, base；2nd, backrest；3rd, groove；4th, air bag；5th, crust；6th, cavity；7th, air pump；8、
Air inlet pipe；9th, check valve I；10th, escape pipe；11st, check valve II；12nd, air bag front end layer；13rd, air bag back end layers；14th, spacing band；
15th, top air bag；16th, middle part air bag；17th, lower airbag；18th, groove floor；19th, mounting groove；20th, top air bag mounting groove；
21st, middle part air bag mounting groove；22nd, lower airbag mounting groove；23rd, control unit；24th, air bag cavity.
Embodiment
Below against accompanying drawing, by the description to embodiment, each structure for example involved to the embodiment of the present invention
The works such as mutual alignment and annexation, the effect of each several part and operation principle between the shape of part, construction, each several part are further
Detailed description：
As shown in Figure 1, the present invention is a kind of backrest structure of automotive seat, and described automotive seat includes base 1, leaned on
The back of the body 2, the leading flank of backrest 2 of the backrest structure of automotive seat set groove 3, place air bag 4 in groove 3, the leading flank of backrest 2 is also set
The crust 5 that air bag 4 can be enclosed in groove 3 is put, cavity 6 is also set up inside backrest 2, air pump 7, air pump 7 are installed in cavity 6
Be connected by air inlet pipe 8 with air bag 4, check valve I 9 be installed in air inlet pipe 8, also set up escape pipe 10 on air bag 4, escape pipe 10 with
Atmosphere, check valve II 11 is installed, air pump 7 is with that can control the control unit 23 of the start and stop of air pump 7 to be connected on escape pipe 10.It is above-mentioned
Structure, when designing or making automotive seat, groove 3 is set in the leading flank of backrest 2 of automotive seat, air bag 4 is set in groove,
And the muster or contraction of air bag is controlled by air pump, when driver and crew need backrest outwardly, controlled by control unit 23
Air pump processed starts, and air pump 7 is inflated by air inlet pipe 8 into air bag, so that the gas into air bag drives air bag to heave, gas
Capsule, which is heaved, promotes crust 5 to be flared out, and it is outwardly so to allow for backrest, meets different driver and crew's demands.And when driving
When personnel need the air bag to shrink, it is only necessary to which driver and crew apply extruding force on air bag 4, when extruding force is more than check valve II 11
When setting resistance, it becomes possible to promote check valve II 11 to open, the portion gas in air bag is discharged into air by escape pipe 10,
Air bag 4 now shrinks, and air bag, which shrinks, drives crust 5 to move inward, and so allows for backrest 2 and is inwardly recessed, meets different additions
Personnel demand.The backrest structure of automotive seat of the present invention, it is simple in construction, it is only necessary to put into relatively low cost, it becomes possible to
The regulation of the height of concave convex of the convenient and swift backrest front end for realizing arta vehicle seat unit, so as to meet different heights, fat or thin drive
Multiply the different demands of personnel's seating, effectively solve the sense of discomfort and the tingle problem of body brought when taking, effectively improve automotive seats
Chair back comfort level.
Described air bag 4 includes air bag front end layer 12 and air bag back end layers 13, and the inside of air bag 4 sets spacing band 14, described
The one end of spacing band 14 be connected with the surface middle part of air bag front end layer 12 of air bag 4, after the air bag of the spacing other end of band 14 and air bag 4
Connected in the middle part of the inner surface of end layer 13.Said structure, by the setting of spacing band, when air bag is heaved, if without spacing band, gas
The pars intermedia of air bag front end layer 12 of capsule and the pars intermedia of air bag back end layers 13 can be too outwardly, so that the shape of crust
No longer it is a structure for meeting reliably can comfortably lean on when driver and crew take, so as to influence addition personnel's comfortableness, draws
It is uncomfortable to play back.Said structure, spacing band is when air bag is heaved, after being heaved between air bag front end layer 12 and air bag back end layers 13
Ultimate range carry out spacing, so, the air bag front end layer 12 after heaving is an ellipsoidal structure all the time, and crust is also oval
Shape structure, such structure are consistent with driver and crew's back curve, improve riding comfort.
Described air bag 4 includes three, and three air bags 4 are arranged from top to bottom, and a spacing band is set in each air bag 4
14, each air bag 4 is arranged to the structure connected with an adjacent air bag 4 by connecting tube, and three air bags 4 are respectively top air bag
15th, middle part air bag 16, lower airbag 17, air inlet pipe 8 are arranged on the air bag 16 of middle part, and escape pipe 10 is arranged on top air bag 15
On.Said structure, by the setting of three air bags, after three air bags are heaved, air bag exerts a force on crust, promotes drum on crust
Three raised bags are played, so as to which three bags form three positions with flexibility, act on driver and crew's back different parts, can
Enough that driver and crew are played a supporting role, and can plays massage effect, alleviates driver and crew's fatigue, improves riding comfort.
What the gas that the check valve I 9 in described air inlet pipe 8 is configured in entry deterrence air bag 4 flowed back to air pump 7
Structure, when being applied to the setting pressure for the check valve II 11 that the pressure on air bag 4 is more than on escape pipe 10, check valve II 11 is set
For the structure that can be opened, when check valve II 11 is opened, the gas in air bag 4 is configured to be discharged into air from escape pipe 10
In structure.Said structure, the check valve I 9 in air inlet pipe 8 ensure that the gas of air pump can only enter air bag, without from air inlet
Pipe is discharged, and the check valve II 11 on escape pipe 10 is merely able to be vented from escape pipe, is entered without having gas from escape pipe.And arrange
Gas individually need not be adjusted or set, as long as applying larger pressure, it becomes possible to promote check valve II 11 to open, easy to exhaust.
The volume of described top air bag 15 is set greater than the volume of middle part air bag 16 and the volume of lower airbag 17
Structure, the volume of top air bag 15 are arranged to the structure equal with the volume of lower airbag 17.Said structure, three air bags are total
An ellipsoidal structure is formed on body, and is having wavy shaped configuration positioned at crust side, when driver and crew take, waveform knot
Structure can act on driver and crew's back different parts, and both driver and crew were played a supporting role, and play massage effect again, alleviate
Personnel's fatigue, improves riding comfort.
The groove floor 18 of described groove 3 sets mounting groove 19, and mounting groove 19 is arranged to recessed arcwall face structure, gas
The outer surface of air bag back end layers 13 of capsule 4 is pasted with mounting groove 19 to be connected.Said structure, the outer surface of air bag back end layers 13 of air bag 4
Paste and connect with mounting groove 19, convenient connection, is not in come off.And the mounting groove of recessed arcwall face structure, can be in gas
The shape of air bag back end layers 13 is accommodated when capsule is heaved.
Set gradually in the groove floor 18 of described groove 3 top air bag mounting groove 20, middle part air bag mounting groove 21, under
Portion's air bag mounting groove 22, the air bag back end layers 13 of top air bag 15 are pasted with top air bag mounting groove 20 to be connected, middle part air bag 16
Air bag back end layers 13 and middle part air bag mounting groove 21 paste and connect, air bag back end layers 13 and the lower airbag of lower airbag 17 are pacified
Tankage 22 pastes connection, and described crust 5 is arranged to the structure made of resilient material.Crust is by the material system with elasticity
Into when being heaved respectively in three air bags and acting on crust, crust can open, and change the shape of crust, act on and drive people
Member's back position, meet actual demand when different heights, fat or thin driver and crew seating, improve riding comfort, fatigue-relieving.
After described control unit 11 controls air pump 7 to be filled with gas into air bag 4, the air bag front end layer 12 of air bag 4 is gentle
The Formation cross-section of capsule back end layers 13 is the structure of the air bag cavity 24 of ellipse.Said structure, changed by air bag cavity geometry, changed
Become crust height of concave convex and curve form, meet driver and crew's different demands.
After described control unit 11 controls air pump 7 to be filled with gas into air bag 4, the air bag front end layer of top air bag 15
12nd, it is in outwardly wave arc between the air bag front end layer 12 of middle part air bag 16, the air bag front end layer 12 of lower airbag 17
Shape face structure, the protrusion height of the air bag front end layer 12 of middle part air bag 16 are set greater than the air bag front end layer 12 of top air bag 15
Protrusion height structure, the protrusion height of the air bag front end layer 12 of middle part air bag 16 is equal to the air bag of lower airbag 17
The structure of the protrusion height of front end layer 12.Said structure, when driver and crew take, wavy shaped configuration can act on driver and crew
Driver and crew were both played a supporting role by back different parts, played massage effect again, alleviated driver and crew's fatigue.
The backrest structure of automotive seat of the present invention, when designing or making automotive seat, in leaning on for automotive seat
Carry on the back leading flank and groove is set, air bag is set in groove, and the muster or contraction of air bag is controlled by air pump, when driver and crew need
When backrest is outwardly, air pump is controlled to start by control unit, air pump is inflated by air inlet pipe into air bag, so that entering
The gas for entering air bag drives air bag to heave, and air bag, which is heaved, promotes crust to be flared out, and it is outwardly so to allow for backrest, meets
Different driver and crew's demands.And when driver and crew need air bag to shrink, it is only necessary to driver and crew apply extruding force on air bag,
When extruding force is more than the setting resistance of check valve II, it becomes possible to promote check valve II to open, the portion gas in air bag passes through
Escape pipe is discharged in air, and air bag shrinks, and air bag, which shrinks, drives crust to move inward, and so allows for backrest and is inwardly recessed, full
The different addition personnel demands of foot.The backrest structure of automotive seat of the present invention, it is simple in construction, it is only necessary to put into it is relatively low into
This, it becomes possible to the regulation of the height of concave convex of the convenient and swift backrest front end for realizing arta vehicle seat unit, meet different heights, fat or thin
The different demands taken of driver and crew, the sense of discomfort and body tingle problem brought when effectively solving to take, effectively improve vapour
Vehicle seat chair back comfort level.
Exemplary description is carried out to the present invention above in conjunction with accompanying drawing, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, if the various improvement of inventive concept and technical scheme of the present invention progress are employed, or it is not improved by this
The design of invention and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (5)
- A kind of 1. backrest structure of automotive seat, it is characterised in that：Described automotive seat includes base (1), backrest (2), vapour Backrest (2) leading flank of the backrest structure of vehicle seats sets groove (3), and air bag (4), backrest (2) leading flank are placed in groove (3) The crust (5) that air bag (4) can be enclosed in groove (3) is also set up, cavity (6), cavity (6) are also set up inside backrest (2) Interior installation air pump (7), air pump (7) are connected by air inlet pipe (8) with air bag (4), and check valve I (9), gas are installed in air inlet pipe (8) Escape pipe (10), escape pipe (10) and atmosphere are also set up on capsule (4), check valve II (11), gas are installed on escape pipe (10) With the control unit (23) of air pump (7) start and stop can be controlled to be connected, the check valve I (9) in air inlet pipe (8) is configured to pump (7) The structure that gas in entry deterrence air bag (4) flows back to air pump (7), the pressure being applied on air bag (4) are more than escape pipe (10) during the setting pressure of the check valve II (11) on, check valve II (11) is configured to the structure opened, check valve II (11) when opening, the gas in air bag (4) is configured to the structure being discharged into from escape pipe (10) in air.
- 2. the backrest structure of automotive seat according to claim 1, it is characterised in that：Described air bag (4) includes air bag Front end layer (12) and air bag back end layers (13), air bag (4) is internal to set spacing band (14), described spacing band (14) one end and gas Air bag front end layer (12) surface middle part connection of capsule (4), the air bag back end layers (13) of spacing band (14) other end and air bag (4) are interior Surface middle part connects.
- 3. the backrest structure of automotive seat according to claim 1 or 2, it is characterised in that：Described air bag (4) includes three Individual, three air bags (4) are arranged from top to bottom, and a spacing band (14) is set in each air bag (4), and each air bag (4) is arranged to The structure connected with an adjacent air bag (4) by connecting tube, three air bags (4) are respectively top air bag (15), middle part air bag (16), lower airbag (17), air inlet pipe (8) are arranged on middle part air bag (16), and escape pipe (10) is arranged on top air bag (15) On.
- 4. the backrest structure of automotive seat according to claim 2, it is characterised in that：The groove-bottom of described groove (3) Face (18) sets mounting groove (19), and mounting groove (19) is arranged to recessed arcwall face structure, the air bag back end layers (13) of air bag (4) Outer surface is pasted with mounting groove (19) to be connected.
- 5. the backrest structure of automotive seat according to claim 3, it is characterised in that：Described control unit (11) control After air pump (7) is filled with gas into air bag (4), air bag front end layer (12), the air bag of middle part air bag (16) of top air bag (15) Front end layer (12), lower airbag (17) air bag front end layer (12) between be in outwardly wave arcwall face structure, middle part The protrusion height of the air bag front end layer (12) of air bag (16) is set greater than the convex of the air bag front end layer (12) of top air bag (15) Go out the structure of height, the protrusion height of the air bag front end layer (12) of middle part air bag (16) is equal to the gas of lower airbag (17) The structure of the protrusion height of capsule front end layer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711159730.6A CN107878279A (en) | 2017-11-20 | 2017-11-20 | A kind of backrest structure of automotive seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711159730.6A CN107878279A (en) | 2017-11-20 | 2017-11-20 | A kind of backrest structure of automotive seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107878279A true CN107878279A (en) | 2018-04-06 |
Family
ID=61777684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711159730.6A Pending CN107878279A (en) | 2017-11-20 | 2017-11-20 | A kind of backrest structure of automotive seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107878279A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171508A (en) * | 2012-12-03 | 2013-06-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Passenger protecting system in time of vehicle tumbling |
| CN104224520A (en) * | 2014-09-16 | 2014-12-24 | 苏晓晓 | Massage automobile cushion capable of automatically adapting to sitting posture |
| CN205059502U (en) * | 2015-06-26 | 2016-03-02 | 比亚迪汽车工业有限公司 | Automobile seat |
| CN205256094U (en) * | 2015-11-24 | 2016-05-25 | 江苏韩一模塑有限公司 | Car seat cushion |
| CN205573680U (en) * | 2016-03-29 | 2016-09-14 | 镇江安迪儿童用品有限公司 | Children's safety seat buffer |
| CN107323321A (en) * | 2017-06-30 | 2017-11-07 | 沈建伟 | A kind of arta vehicle seat unit |
-
2017
- 2017-11-20 CN CN201711159730.6A patent/CN107878279A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171508A (en) * | 2012-12-03 | 2013-06-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Passenger protecting system in time of vehicle tumbling |
| CN104224520A (en) * | 2014-09-16 | 2014-12-24 | 苏晓晓 | Massage automobile cushion capable of automatically adapting to sitting posture |
| CN205059502U (en) * | 2015-06-26 | 2016-03-02 | 比亚迪汽车工业有限公司 | Automobile seat |
| CN205256094U (en) * | 2015-11-24 | 2016-05-25 | 江苏韩一模塑有限公司 | Car seat cushion |
| CN205573680U (en) * | 2016-03-29 | 2016-09-14 | 镇江安迪儿童用品有限公司 | Children's safety seat buffer |
| CN107323321A (en) * | 2017-06-30 | 2017-11-07 | 沈建伟 | A kind of arta vehicle seat unit |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |
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| RJ01 | Rejection of invention patent application after publication |