CN106388364A - Backward moving type folding seat - Google Patents
Backward moving type folding seat Download PDFInfo
- Publication number
- CN106388364A CN106388364A CN201611088318.5A CN201611088318A CN106388364A CN 106388364 A CN106388364 A CN 106388364A CN 201611088318 A CN201611088318 A CN 201611088318A CN 106388364 A CN106388364 A CN 106388364A
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- Prior art keywords
- seat
- strut
- hinged
- leg
- rumble
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C4/00—Foldable, collapsible or dismountable chairs
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a backward moving type folding seat, and belongs to the technical field of seats. The backward moving type folding seat disclosed by the invention comprises a support, seat front legs, seat face supporting blocks, seat back legs, a seat face and a backrest, wherein the support, the seat front legs, the seat back legs and the seat face supporting blocks form a four-connecting-rod mechanism; a dead point mechanism is arranged between the seat front legs and the seat back legs, and the back of the seat face is connected with the dead point mechanism through articulated connecting rods; the seat face is lifted upwards to drive the dead point mechanism to be unlocked through the connecting rods and then to drive the seat front legs and the seat back legs to be inclined and folded backwards; and the seat face is pressed downwards to drive the dead point mechanism to be locked through the connecting rods and then to unfold the seat front legs and the seat back legs at right positions forwards. According to the backward moving type folding seat, the seat face is folded to drive the seat to integrally move backwards by using the four-connecting-rod mechanism, a relatively large space can be maintained after the seat face is folded, and the seat is convenient to enter and exit; and moreover, the seat has folding flexibility and stability, is simple in structure, smart in design, low in cost and high in practical, and is extremely convenient and worthy of popularization and application.
Description
Technical field
The present invention relates to a kind of rumble seat, more particularly, it relates to after one kind, move formula rumble seat.
Background technology
In university of today, senior middle school classroom and numerous academic halls, meeting-place, it is used mostly lecture theater type
Tables and chairs, and a general classroom or Conference Hall at least can accommodate more than 100 number people, even more many.For save space,
So tables and chairs are mostly all by the way of fixing seated, in the form of this kind of fixed seat is typically all using folding, to reach
Maximum space availability ratio.It is seen that, current stationary type folding seat substantially can be divided into two categories below：
One class is so that seat front end is manually overturn backward upwards using the mode such as hinged, reaches folded state；Another kind of it is
The power being applied using torsion spring or gravity make seat automatically restore to folded state, reach folding effect, are also seat during folding
Turn over upwards in front end.Although compared to the fixed chair of seat, space availability ratio increased this two classes rumble seat,
But but there is a problem of that one seems normal but very serious：The audience's discrepancy being sitting in centre position is very inconvenient, enters every time
Go out all can bother the audience of surrounding it is sometimes desirable to surrounding audience out could smoothly come in and go out, and so be also not easy to sweep
Health, in addition returns to folded state process medium velocity soon in seat, noise is big, can affect surrounding enviroment peace and quiet, affect other people.
Through retrieval, China Patent No. ZL201420377583.5, authorized announcement date is on December 3rd, 2014, innovation and creation
Entitled：Hommization folding seat, this application case is related to a kind of hommization folding seat, can slide to the chair back by slider-rocker mechanism
Can be soared out, when personnel pass through, be sitting in seat personnel and can stand up for seat to slide to chair in locus in the middle of seat by post
The back of the body, facilitates the movement of persons setting in the space in the middle of seat simultaneously；After seat has slided into, it is also convenient for wipe clean.Even if
So, still optimum efficiency can not be reached, because when seat folds into the chair back, chair leg and backrest are motionless it is impossible to maximum
Concede discrepancy space with changing, however it remains larger use limitation, be not easy to promote the use of.
Therefore, how to design a can activity and can reserve certain space facilitate everybody come in and go out and practical
Seat becomes technical problem urgently to be resolved hurrily.
Content of the invention
1. invent technical problem to be solved
It is an object of the invention to overcoming existing stationary type folding seat above shortcomings, after one kind is provided, move formula folding
Folded seat, using technical scheme, makes seat fold using quadric chain and drives seat to be integrally moved rearwards by, fold
Larger space can be reserved afterwards, convenient discrepancy；And the motility of seat folding and stability have both, structure is simple, design
Ingenious, with low cost, practical, it is highly convenient for and is worthy of popularization, can be widely used for press hall, academic hall
With student classroom etc..
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is：
Move formula rumble seat after one kind of the present invention, including bearing, seat front leg, seat back leg, seat and backrest, also wrap
Include seat support block, the rear portion of described seat is hinged in seat support block, and described backrest is installed in seat support block,
The bottom of the bottom of described seat front leg and seat back leg is all hinged on bearing, the described top of seat front leg and seat
The top of back leg is all hinged in seat support block, and described bearing, seat front leg, seat back leg and seat support block constitute four
Linkage；It is provided with dead point mechanism, hinged company is passed through at described seat back between described seat front leg and seat back leg
Bar is connected with dead point mechanism；
Described seat starts upwards and drives the unblock of dead point mechanism by connecting rod and then drive seat front leg and seat back leg
Tilt backwards folding；Described seat press downwards by connecting rod drive dead point mechanism locked so that by seat front leg and seat after
Lower limb ajusts forward expansion.
Improve further as the present invention, when seat pressure makes seat launch, described seat front leg and seat back leg
It is in vertical position.
Improve further as the present invention, the length of described seat back leg is slightly larger than the length of seat front leg.
Improve further as the present invention, described dead point mechanism includes the first strut and the second strut, described first
One end of strut is hinged with the middle part of seat front leg, and described one end of the second strut is hinged with the bottom of seat back leg, described
The first strut and the second strut be hinged, and the pin joint of the first strut and the second strut is hinged with one end of connecting rod.
Improve further as the present invention, the equal length of the first described strut and the second strut, and in seat pressure
When so that seat is launched, the first strut and the second strut stretch as same straight line.
Improve further as the present invention, described seat is hinged with seat support block by seat support, and connecting rod
It is hinged on seat support.
Improve further as the present invention, described backrest is hinged in seat support block by back bracket, and seat
Support block is provided with to be matched with back bracket and merges the stopper slot that can limit back bracket rotational angle.
Improve further as the present invention, the described back bracket rotational angle in stopper slot is 10 °～20 °.
Improve further as the present invention, described seat front leg, seat back leg and seat support block constitute Seat support
Unit, and it is respectively provided with one group of Seat support unit in the both sides of seat.
Improve further as the present invention, the dead point mechanism between two groups of Seat support units is linked even by central shaft
Connect.
3. beneficial effect
The technical scheme being provided using the present invention, compared with existing known technology, has following remarkable result：
(1) formula rumble seat, its bearing, seat front leg, seat back leg and seat support block structure are moved after one kind of the present invention
Become quadric chain, between seat front leg and seat back leg, be provided with dead point mechanism, hinged connecting rod and dead point are passed through in seat back
Mechanism is connected；Seat starts upwards and drives the unblock of dead point mechanism by connecting rod and then drive seat front leg and seat back leg backward
Oblique fold；Seat presses downwards and drives dead point mechanism locked by connecting rod and then ajust forward seat front leg and seat back leg
Launch；Make seat fold using quadric chain to drive seat to be integrally moved rearwards by, larger space can be reserved after folding, side
Just come in and go out；And the motility of seat folding and stability have both, structure is simple, design is ingenious, practical, with low cost,
It is highly convenient for and is worthy of popularization, can be widely used for press hall, academic hall and student classroom etc.；
(2) move formula rumble seat after one kind of the present invention, its when seat pressure makes seat launch, seat front leg and seat
Back leg is in vertical position, and not only structural stability is good, and can improve the bearing capacity of seat, meets the people of different weight
Use；
(3) move formula rumble seat after one kind of the present invention, the length of its seat back leg is slightly larger than the length of seat front leg, this
Sample, after seat folds, seat front leg can have bigger inclination angle, thereby may be ensured that seat vacates bigger sky after folding
Between, and can make after folding seat support block drive backrest turn forward, make seat fold compacter, be easy to seat with
Heel row desk space is arranged, makes full use of space；
(4) move formula rumble seat after one kind of the present invention, its dead point mechanism includes the first strut and the second strut, the first support
One end of bar is hinged with the middle part of seat front leg, and one end of the second strut is hinged with the bottom of seat back leg, the first strut and
Two struts are hinged, and the pin joint of the first strut and the second strut is hinged with one end of connecting rod；Dead point mechanism structure is simple, spirit
Live reliable, good stability, driven whole seat to fold or launched by seat, switching is nimbly and freely；
(5) shifting formula rumble seat after one kind of the present invention, the equal length of its first strut and the second strut, and in seat
When pressure makes seat launch, the first strut and the second strut stretch as same straight line, using drawing of the first strut and the second strut
The locked quadric chain of power, is conducive to improving the bearing capacity of rumble seat；
(6) move formula rumble seat after one kind of the present invention, its seat is hinged with seat support block by seat support, and
Rod hinge connection, on seat support, is easy to seat and is installed, easy to make；
(7) move formula rumble seat after one kind of the present invention, its backrest is hinged in seat support block by back bracket, and
Seat support block is provided with to be matched with back bracket and merges the stopper slot that can limit back bracket rotational angle, enables backrest
Turn an angle, comfort not only can be improved, and advantageously in utilization space, reduce seat and heel row desk
Between mounting distance, improve space availability ratio；
(8) move formula rumble seat after one kind of the present invention, its seat front leg, seat back leg and seat support block constitute seat
Support unit, and be respectively provided with one group of Seat support unit in the both sides of seat, makes the structure of seat more reliable and more stable, using making an uproar
Sound is little, and service life is longer.
Brief description
Fig. 1 is a kind of rear deployed configuration schematic diagram moving formula rumble seat of the present invention；
Fig. 2 is a kind of rear foldable structure schematic diagram moving formula rumble seat of the present invention；
Fig. 3 is a kind of rear expansion side structure schematic view moving formula rumble seat of the present invention；
Fig. 4 is a kind of rear folding side structure schematic view moving formula rumble seat of the present invention；
Fig. 5 is that a kind of rear of the present invention moves the relation schematic diagram with heel row desk after formula rumble seat folds；
Fig. 6 is the fit structure schematic diagram of the stopper slot of seat support block and back bracket in the present invention；
Fig. 7 is a kind of rear folding principle schematic diagram moving formula rumble seat of the present invention.
Label declaration in schematic diagram：
1st, bearing；2nd, seat front leg；3rd, seat back leg；4th, seat support block；4-1, stopper slot；5th, seat；6th, backrest；7、
Back bracket；8th, seat support；9th, the first strut；10th, the second strut；11st, central shaft；12nd, connecting rod.
Specific embodiment
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
In conjunction with shown in Fig. 1 to Fig. 4, move formula rumble seat after one kind of the present embodiment, including bearing 1, seat front leg 2, seat
Chair back leg 3, seat support block 4, seat 5 and backrest 6, the rear portion of seat 5 is hinged in seat support block 4, can be flipped up
Fold, backrest 6 is installed in seat support block 4, and bearing 1 is used for fixing whole rumble seat, the bottom of seat front leg 2 and seat
The bottom of back leg 3 is all hinged on bearing 1, and the top of the top of seat front leg 2 and seat back leg 3 is all hinged on seat support block
On 4, so, bearing 1, seat front leg 2, seat back leg 3 and seat support block 4 constitute quadric chain, be capable of seat to
Mobile folding afterwards；Because quadric chain has unstability, therefore between seat front leg 2 and seat back leg 3, it is provided with dead point
Mechanism, it is achieved that the degree of freedom of seat folding mechanism controls, makes the stability of seat and motility have both；Seat 5 back is passed through
Hinged connecting rod 12 is connected with dead point mechanism, so can control the use state of seat by the upset of seat 5, specifically
Ground, seat 5 starts upwards and drives the unblock of dead point mechanism by connecting rod 12 and then drive seat front leg 2 and seat back leg 3 to retreat
Bias is folded；Seat 5 presses downwards and drives dead point mechanism locked by connecting rod 12 and then by seat front leg 2 and seat back leg 3 forward
Ajust expansion.After said structure, so that seat 5 is folded using quadric chain and drive seat to be integrally moved rearwards by, after folding
Larger space can be reserved, convenient discrepancy, and also the motility of seat folding and stability have both.
Referring to shown in Fig. 1 and Fig. 3, in the present embodiment, when seat 5 pressure makes seat launch, seat front leg 2 and seat
Back leg 3 is in vertical position, and so, not only the structural stability of seat is good, and based on seat front leg 2 and seat back leg 3
Want load part, similar with traditional Chinese chair, the bearing capacity of seat can be improved, the people meeting different weight uses.In addition, at this
In embodiment preferably, the length of seat back leg 3 is slightly larger than the length of seat front leg 2, after so designing, according to quadric chain
Feature, seat fold after, seat front leg 2 can have bigger inclination angle (as shown in Figure 2 and Figure 4), thereby may be ensured that
Seat vacates bigger space after folding, and substantially facilitates discrepancy；And, need overall being moved back by because seat folds
Dynamic, therefore need to leave certain space between seat and heel row desk, and after adopting said structure, seat is permissible after folding
Make seat support block 4 drive backrest 6 to turn forward (by Fig. 2 and Fig. 4 it is also seen that), so that seat is folded compacter, be easy to
Seat and heel row desk carry out space arrangement, make full use of space.
Above-mentioned dead point mechanism has in the lock-out state of seat expanded position and the released state in seat folding position,
So that the motility of seat folding and stability have both.Specific in the present embodiment, dead point mechanism includes the first strut 9 and
Two struts 10, one end of the first strut 9 is hinged with the middle part of seat front leg 2, one end of the second strut 10 and the bottom of seat back leg 3
Portion is hinged, and the first strut 9 and the second strut 10 are hinged, and the pin joint of the first strut 9 and the second strut 10 and connecting rod 12
One end is hinged.When seat 5 starts upwards, connecting rod 12 pulls the first strut 9 and the second strut 10 to fold, so that seat front leg
2 and seat back leg 3 tilt backwards folding, when seat 5 presses downwards, connecting rod 12 promotes the first strut 9 and the second strut 10 to support
Open, thus seat front leg 2 and seat back leg 3 will be made to strut, realize seat and launch, have that structure is simple, flexibility and reliability, stability
Good the features such as, and driven whole seat to fold or launched by seat 5, nimbly and freely, action is synchronous for switching.It is preferred that the second support
Bar 10 and hinged first strut 9 in bottom of seat back leg 3 and the equal length of the second strut 10, and depress in seat 5
When so that seat is launched, the first strut 9 and the second strut 10 stretch as same straight line, form triangle dead point mechanism, utilize first
The locked quadric chain of pulling force of strut and the second strut, is conducive to improving the bearing capacity of rumble seat.
As shown in Figure 2, Figure 3 and Figure 4, in the present embodiment, seat 5 is mutually cut with scissors with seat support block 4 by seat support 8
Connect, be easy to seat 5 and installed, easy to make, and connecting rod 12 is hinged on seat support 8, connects connecting rod using seat support 8
12 is convenient.In the present embodiment, backrest 6 is hinged in seat support block 4 by back bracket 7, and in seat support block 4
Being provided with is matched with back bracket 7 merges the stopper slot 4-1 (shown in Figure 6) that can limit back bracket 7 rotational angle, backrest
Rotational angle in stopper slot 4-1 for the support 7 is 10 °～20 °, optimal with 15 ° of rotational angle, enables backrest 6 to rotate one
Determine angle, so design not only conforms with ergonomics, adapts to the people of different building shape, improves comfort, and, as Fig. 5 institute
Show, although backrest 6 can turn forward certain angle with seat support block 4 after seat folds, but still can not reach optimal
State, by the rotation setting of backrest 6, when seat is integrally moved back by, backrest 6 can be adjusted and heel row desk by rotating
Between state, enable backrest 6 to be close to heel row desk, reduce the mounting distance between seat and heel row desk, before making tables and chairs
Spacing is more reasonable afterwards, further increases space availability ratio, has both met tables and chairs installation number and has required, in turn ensure that seat makes
With motility and comfortableness.
Above-mentioned seat front leg 2, seat back leg 3 and seat support block 4 can arrange one group at the middle part of seat 5, now
Seat front leg 2, seat back leg 3 and seat support block 4 need larger width and structural strength to meet use requirement, so set
The defect put is that structural stability can be poor, and more sturdy rod member also can increase seat-weight.Therefore, in the present embodiment
In it is preferable that seat front leg 2, seat back leg 3 and seat support block 4 constitute Seat support unit, and respectively set in the both sides of seat
There is one group of Seat support unit (as depicted in figs. 1 and 2), make the structure of seat more reliable and more stable, little using noise, using the longevity
Life is longer, can reduce seat overall weight simultaneously.In addition, the dead point mechanism between two groups of Seat support units passes through central shaft
11 are connected, and connecting rod 12 is hinged on the middle part of central shaft 11, and such setting structure is simple, and stability is very good.
As shown in fig. 7, giving a kind of rear folding principle schematic diagram moving formula rumble seat of the present embodiment, can by figure
To be clear that, the position relationship in deployed condition and folded state for the seat, after folding, seat has integrally been moved rearwards by one
Set a distance, has vacated larger space on front side of seat, can greatly facilitate personnel to come in and go out.And, it is permissible by this schematic diagram
Calculate, the degree of freedom of the foldable structure of this seat is 1, can synchronously drive seat integrally to launch by the upset of seat 5 or
Fold.According to the description above it will be understood that by the accurate length calculating each rod member and movement relation, seat can be made
Reach optimal use effect, seat 5 can be flipped up 90 °, and folded configuration is closely.
Move formula rumble seat after one kind of the present invention, replace seat leg using quadric chain, when standing up by people, handss are given
Seat applies a resupinate external force, so that seat is folded and drives seat to be integrally moved rearwards by, can reserve larger after folding
Space, convenient come in and go out, solve the problems, such as the resigning between seat, simply and not unstability is not qualitative for structure convenient and efficient；And
The motility that seat folds and stability have both, and design is ingenious, practical, with low cost, and being highly convenient for and be worthy to be popularized should
With can be widely used for press hall, academic hall and student classroom etc..
Below schematically the present invention and embodiments thereof are described, this description does not have restricted, institute in accompanying drawing
Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case of without departing from the invention objective, without creatively designing and this technical scheme
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. move formula rumble seat after one kind, including bearing (1), seat front leg (2), seat back leg (3), seat (5) and backrest
(6) it is characterised in that：Also include seat support block (4), the rear portion of described seat (5) is hinged in seat support block (4),
Described backrest (6) is installed in seat support block (4), the bottom of the described bottom of seat front leg (2) and seat back leg (3)
All it is hinged on bearing (1), the top of the described top of seat front leg (2) and seat back leg (3) is all hinged on seat and supports
On block (4), described bearing (1), seat front leg (2), seat back leg (3) and seat support block (4) constitute quadric chain；Institute
It is provided with dead point mechanism, hinged connecting rod is passed through at described seat (5) back between the seat front leg (2) stated and seat back leg (3)
(12) it is connected with dead point mechanism；
Described seat (5) starts upwards and drives the unblock of dead point mechanism by connecting rod (12) and then drive seat front leg (2) and seat
Chair back leg (3) tilts backwards folding；Described seat (5) presses downwards and drives dead point mechanism locked by connecting rod (12) and then incite somebody to action
Seat front leg (2) and seat back leg (3) ajust forward expansion.
2. according to claim 1 one kind after move formula rumble seat it is characterised in that：Make seat exhibition in seat (5) pressure
When opening, described seat front leg (2) and seat back leg (3) are in vertical position.
3. according to claim 2 one kind after move formula rumble seat it is characterised in that：The length of described seat back leg (3)
Degree is slightly larger than the length of seat front leg (2).
4. according to claim 3 one kind after move formula rumble seat it is characterised in that：Described dead point mechanism includes first
Strut (9) and the second strut (10), described one end of the first strut (9) is hinged with the middle part of seat front leg (2), and described
One end of two struts (10) is hinged with the bottom of seat back leg (3), and described the first strut (9) mutually cuts with scissors with the second strut (10)
Connect, and the pin joint of the first strut (9) and the second strut (10) is hinged with one end of connecting rod (12).
5. according to claim 4 one kind after move formula rumble seat it is characterised in that：Described the first strut (9) and
The equal length of two struts (10), and when seat (5) pressure makes seat launch, the first strut (9) and the second strut (10) draw
It is directly same straight line.
6. according to claim 5 one kind after move formula rumble seat it is characterised in that：Described seat (5) passes through seat
Support (8) is hinged with seat support block (4), and connecting rod (12) is hinged on seat support (8).
7. after the one kind according to claim 1 to 6 any one move formula rumble seat it is characterised in that：Described backrest
(6) it is hinged in seat support block (4) by back bracket (7), and seat support block (4) is provided with and back bracket (7) phase
Coordinate and can limit the stopper slot (4-1) of back bracket (7) rotational angle.
8. according to claim 7 one kind after move formula rumble seat it is characterised in that：Described back bracket (7) is in limit
Rotational angle in position groove (4-1) is 10 °～20 °.
9. according to claim 7 one kind after move formula rumble seat it is characterised in that：Described seat front leg (2), seat
Back leg (3) and seat support block (4) constitute Seat support unit, and are respectively provided with one group of Seat support unit in the both sides of seat.
10. according to claim 9 one kind after move formula rumble seat it is characterised in that：Between two groups of Seat support units
Dead point mechanism be connected by central shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088318.5A CN106388364B (en) | 2016-12-01 | 2016-12-01 | One kind moving back formula rumble seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088318.5A CN106388364B (en) | 2016-12-01 | 2016-12-01 | One kind moving back formula rumble seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106388364A true CN106388364A (en) | 2017-02-15 |
| CN106388364B CN106388364B (en) | 2019-08-30 |
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ID=58084420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611088318.5A Active CN106388364B (en) | 2016-12-01 | 2016-12-01 | One kind moving back formula rumble seat |
Country Status (1)
| Country | Link |
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| CN (1) | CN106388364B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108577301A (en) * | 2017-12-25 | 2018-09-28 | 李燕 | A kind of rumble seat |
| CN113040527A (en) * | 2021-05-07 | 2021-06-29 | 江西省南城县发华实业有限公司 | Tablet chair with humpback prevention function |
| CN113940862A (en) * | 2021-10-22 | 2022-01-18 | 沈阳理工大学 | Help old and prevent falling down device |
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| CN202775232U (en) * | 2012-07-30 | 2013-03-13 | 浙江理工大学 | Multifunctional leisure folding chair |
| CN104771003A (en) * | 2015-04-03 | 2015-07-15 | 河海大学常州校区 | Portable multifunctional folding chair |
| CN204541219U (en) * | 2015-03-19 | 2015-08-12 | 河北工程大学 | One can flush system tables and chairs |
| JP2015194219A (en) * | 2014-03-31 | 2015-11-05 | Ｓｐｐテクノロジーズ株式会社 | Link device |
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| DE2221542B2 (en) * | 1972-05-03 | 1977-08-25 | Stanzwerk Peitz & Co, 5802 Wetter | Adjustable easy chair reclining to lying position - has four link chain with swivel system changing levels of seat, back and foot rests w.r.t. each other |
| CN1465313A (en) * | 2002-07-02 | 2004-01-07 | 侯红旗 | Automatic driven head, back and foot massage chair |
| CN202775232U (en) * | 2012-07-30 | 2013-03-13 | 浙江理工大学 | Multifunctional leisure folding chair |
| JP2015194219A (en) * | 2014-03-31 | 2015-11-05 | Ｓｐｐテクノロジーズ株式会社 | Link device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108577301A (en) * | 2017-12-25 | 2018-09-28 | 李燕 | A kind of rumble seat |
| CN113040527A (en) * | 2021-05-07 | 2021-06-29 | 江西省南城县发华实业有限公司 | Tablet chair with humpback prevention function |
| CN113040527B (en) * | 2021-05-07 | 2022-05-17 | 江西省南城县发华实业有限公司 | Tablet chair with humpback prevention function |
| CN113940862A (en) * | 2021-10-22 | 2022-01-18 | 沈阳理工大学 | Help old and prevent falling down device |
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| Publication number | Publication date |
|---|---|
| CN106388364B (en) | 2019-08-30 |
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