CN110123054A - A kind of seat - Google Patents
A kind of seat Download PDFInfo
- Publication number
- CN110123054A CN110123054A CN201910417100.7A CN201910417100A CN110123054A CN 110123054 A CN110123054 A CN 110123054A CN 201910417100 A CN201910417100 A CN 201910417100A CN 110123054 A CN110123054 A CN 110123054A
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- China
- Prior art keywords
- back frame
- seat
- flexible piece
- seat frame
- frame
- 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.)
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- 238000005452 bending Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000033001 locomotion Effects 0.000 claims abstract description 19
- 230000005489 elastic deformation Effects 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 12
- 230000001427 coherent effect Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000006870 function Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 16
- 230000005484 gravity Effects 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000009711 regulatory function Effects 0.000 description 6
- 230000037396 body weight Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003319 supportive effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000029052 metamorphosis Effects 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
- 230000001739 rebound effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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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
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/025—Springs not otherwise provided for in A47C7/22 - A47C7/35
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/402—Support for the head or the back for the back adjustable in height
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/48—Support for the head or the back for the back of freely-rotatable type
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The present invention relates to a kind of seats, including seat frame, have symmetrically arranged first, second seat frame side；Back frame, its underpart are connect with seat frame, have symmetrically arranged first, second back frame side；Attachment base is connect with seat frame, back frame lower part, and three is connected to form movement chain mechanism；First flexible piece, both ends are connect with seat frame, back frame respectively, and elastic deformation can occur under external force and can reset rebound；Under the action of moving chain mechanism, when back frame is by active force backward, seat frame is backward and height is raised, the first flexible piece deformation occurs in bending enlarged open trend；When back frame is gradually reduced by active force backward, seat frame is gradually reduced forward and highly, and the first flexible piece gradually resets rebound, until returning to original state, easy to operate, structure is simple.
Description
Technical field
The invention belongs to fitment technical field more particularly to a kind of seats with adaptive gravity regulatory function of swinging back
Chair.
Background technique
Office chair obtains vast as a kind of product indispensable in office furniture because it is with good practicability
Consumer's likes.The function of Chair back has much currently on the market, for example has the function of to lean forward, swing back, but these
Function needs to rely on chassis, and the structure and adjusting difficulty of chassis complexity not only will increase the operation difficulty of user, but also cost
Also high.
Prior art CN102905579B discloses a kind of " the backrest counter-force mechanism of chair and the chair for being equipped with the mechanism
Son ", by seat, backrest, spring composition mechanical hypsokinesis linkage mechanism, make backrest link in hypsokinesis seat rise simultaneously energy
It realizes and resets, designing points are that the spring for leaning on rear side, which will originally be arranged in, to be changed to be arranged below seat, tailored appearance,
But this mechanical hypsokinesis linkage mechanism is sufficiently complex, and seat is mutually separated with backrest, when backrest hypsokinesis, only will
It is poor that linkage stability is carried out below backrest lower section and seat, in order to increase stability, will necessarily make the gear with spring
Structure more complicates, meanwhile, seat mutually separates the inevitable stationarity that can also reduce backrest in hypsokinesis and reset, stabilization with backrest
Property, chopping sense is strong, and comfort is poor.
In order to overcome above-mentioned the deficiencies in the prior art, the present invention provide it is a kind of it is easy to operate, structure is simple, stablizes
Property high, safety is good, comfort the is good seat that there is adaptive gravity regulatory function of swinging back, meet ergonomics.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of easy to operate, structures simply, stability
The seat that there is adaptive gravity regulatory function of swinging back, meet ergonomics high, safety is good, comfort is good.
In order to achieve the above purpose, present invention employs technical solutions below:
A kind of seat, comprising:
Seat frame, has symmetrically arranged first seat frame side and the second seat frame side, and the first seat frame side and the second seat frame side are in opening
U-shaped shape backwards；
Back frame, its underpart are connect with seat frame, have symmetrically arranged first back frame side and the second back frame side；
Attachment base, while being connect with the lower part of the lower part of seat frame, back frame, seat frame, back frame, attachment base three be connected to form to
The movement chain mechanism realizing back frame layback and resetting；
First flexible piece, both ends are connect with seat frame, back frame respectively, and elastic deformation can occur under external force and can reset
Rebound；
Under the action of moving chain mechanism, when back frame is swung back by active force backward, seat frame moves backward and height is raised,
Deformation occurs for first flexible piece；When the active force disappears or is gradually reduced, back frame leans forward, and seat frame gradually drops forward and highly
Low, the first flexible piece gradually resets rebound, until returning to original state.
The present invention realizes the layback and reset of back frame by the simple motion chain mechanism in conjunction with setting, wherein first is flexible
Part also functions to the layback and reset that auxiliary realizes back frame, and the present invention can be automatically adjusted and be used according to the size of user's own body weight
Layback strength in family realizes adaptive gravity regulatory function of swinging back, meets ergonomics, wherein the first seat frame side, second
Frame side is arranged to U-shaped shape, is to provide structure basis for movement chain mechanism and provide deformation space；In the effect of movement chain mechanism
Under, when back frame is by active force backward, seat frame is backward and height is raised, and compressional deformation occurs for the first flexible piece；Work as back frame
When being gradually reduced by active force backward, seat frame is gradually reduced forward and highly, and the first flexible piece gradually resets rebound, until
Original state is returned to, is not needed by means of extraneous power resources, structure is simple, easy to operate；Meanwhile seat frame, back frame being adopted
It is connected with the first flexible piece, seat frame, back frame globality are stronger, on the one hand play layback and reset that auxiliary realizes back frame, another
Aspect increases stability in hypsokinesis, comfort, reduces chopping sense, specifically, the first flexible piece is when back frame is swung back
It can be squeezed by stress, so that there is certain buffer function, comfort, stability, stationarity, safety during back frame layback
Property it is good, when human body starts to lean forward, be gradually reduced the active force to back frame, due to the first flexible piece have screen resilience, Ke Yigeng
Realize that back frame resets well, while the first flexible piece also has the function of supporting user's the small of the back, comfort, fastness are more preferably；
In addition, seat frame globality of the invention is strong, integrated streamline moulding will not be as realizing the adaptive function of layback in the prior art
Can, and forward and backward two parts are fractured into the upper surface of seat frame, it is then articulated and connected again by complicated linkage, no
Only structure is complicated, mold opening cost is high, moreover, in this case when seat frame is raised upwards, it can shape between forward and backward two parts
At sharp protrusion, it is very poor that user takes rear comfort；Such problems is then not present in the present invention.
Preferably, the movement chain mechanism includes by end to end first rotation point, the second rotation point, third rotation
The virtual four-bar mechanism that point and the rotation point of virtual toughness the 4th are formed.
Virtual four-bar mechanism is formed by four rotation points being formed between seat frame, back frame and attachment base, realizes back
Frame layback, function and back frame that seat frame backward, above mentions reset, seat frame forward, the function of decline；Meanwhile in four rotation points
Three are actual rotation point, and seat is integrally made into mostly rigidity or slightly toughness, substantially reduces to material requirements, are not required to excessive
Consider its deformation factor, while fastness is good, it is also more preferable to user's supportive.
Preferably, first seat frame side includes upper layer support rod, lower layer support bar and can send out under external force
Raw elastic deformation and the second flexible piece that rebound can be resetted, the upper and lower ends of second flexible piece respectively with upper layer support rod
The front end connection of front end, lower layer support bar.
Upper layer support rod, lower layer support bar, the second flexible piece three connect the structure to form U-shaped shape, to move chain mechanism
Structure basis is provided and deformation space is provided；Second flexible piece of elastically deformable is to form virtual in movement chain mechanism turn
Dynamic point, convenient for the first seat frame side of U-shaped shape, deformation occurs, so realize back frame layback, seat frame above mention backward and back frame reset,
The function that seat frame declines forward, meanwhile, it can be replied for back frame and screen resilience is provided, resetted convenient for back frame.
Preferably, the first rotation point is hingedly formed between upper layer support rod rear portion and the first back frame side lower part, the
The second rotation point is hingedly formed between one back frame side lower part and attachment base rear portion, between lower layer support bar rear portion and attachment base front
The hinged third that formed rotates point, forms virtual toughness the 4th on second flexible piece and rotates point.
First rotation point, the second rotation point, third rotation point are the actual rotation point that articulated connection is formed, and are convenient for seat frame
Angle, the amplitude of rotation can be bigger, and the effect that back frame layback, seat frame above mention backward becomes apparent, and comfort is more preferably；It can elasticity
Virtual toughness the 4th is formed on second flexible piece of deformation and rotates point, is also back frame reply on the one hand to realize that back frame is swung back
It provides with resilience；When human body layback, the F point active force for acting on back frame is generated, while seat frame is also pressed downward by E point
Power, with the second rotation point for axis rotation and reclining backward, the second rotation point rotates backward while driving the first rotation point back frame
It rotates backward, since the first rotation point is the first back frame side lower part of connection and upper layer support rod rear portion, and combines the first seat frame
The U-shaped shape moulding of side and the second flexible piece elastically deformable, when the first rotation point pulls upper layer support rod rear portion back rotation
When, the height of the first rotation point is got higher, and the angle between upper layer support rod and lower layer support bar becomes larger, and upper layer support rod is raised,
And then realize seat frame backward and raise, (at the same time, when the first rotation point rotates backward, the first flexible piece is also by first
The extrusion deformation of rotation point and the first back frame side, generates certain buffer function), when human body starts to lean forward, it is gradually reduced pair
The active force of back frame, elastic reset effect of the back frame in the linkage effect of movement chain mechanism and the first flexible piece, the second flexible piece
Lower realization resets forward, while seat frame forward, highly reduces.Certainly, the angle between upper layer support rod and lower layer support bar becomes
Change should be appropriate, and angle, which crosses conference, keeps the elastic property of the second flexible piece impaired, influences service life.It can be seen that of the invention
Without need to only achieve that user's layback great efforts by the size of user's own body weight by complicated machinery adjustment mode
Small, reset procedure automatic regulation function, meets ergonomics.
Preferably, first flexible piece is equipped with bending for opening forward, which is located at seat frame rear end and back frame
Gap between front surface；When back frame is by active force backward, deformation occurs for the first flexible piece, makes the opening of bending place
Become larger, when back frame is gradually reduced by active force backward, the first flexible piece gradually resets rebound, bending place open shape by
It is decrescence small, until returning to original state.
Since when the first rotation point rotates backward, which will receive the first rotation point and the extruding of the first back frame side becomes
Shape increases buffer function with this, meanwhile, the setting of bending is but also back frame, the reset rebound effect of seat frame are more preferable.
Preferably, the seat frame upper surface portion, the first flexible piece, back frame front surface portion three form coherent song
Face structure, and it is connected on the coherent curved-surface structure bed of cloth of integral type.
Seat frame is connected with back frame by the first flexible piece and three forms coherent curved-surface structure, can be arranged above
The bed of cloth of integral type, good integrity, comfort is good, simple and beautiful.
Preferably, the both ends of first flexible piece are connect with seat frame upper surface, back frame front surface respectively.
Preferably, first flexible piece and the junction a of seat frame are located at the middle and back of seat frame upper surface, first is flexible
Part and the junction b of back frame are located at the middle and lower part of back frame front surface.
When being occupied on seat seat surface due to user, the middle and back of seat frame upper surface, the middle and lower part of back frame front surface and use
The contact area at family is relatively small, can be to avoid the rebound reset and buffer function for influencing the first flexible piece.
Preferably, lower layer support bar rear portion is equipped with spacing block set, attachment base front is provided with to accommodate limit convex
The limiting groove of block, the spacing block set are accommodated in limiting groove and the two is articulated and connected and to form the third rotation point, and
Also there are carry out rotating movable limit gap to spacing block set in limiting groove.
Limit gap when be equipped at third rotation point to lower layer support bar rear portion in rotation, it is possible to prevente effectively under
The too small rotation amplitude and inordinate rotation and deformation of layer support rod and entire seat frame adjusts upper layer support rod and lower layer's branch
Angular distortion between strut, thus as needed adjustment back frame layback angle, safety, stability, comfort more preferably, more
Add and meets ergonomics.
Preferably, successively forward fold forms the first bending part, is folded upward to form the first back frame side bottom
Two bending parts, the first back frame side are integrally in the hook formation of opening upwards；First rotation is formed at the top of second bending part
Second rotation point is formed at point, lower part.
First back frame side is integrally in the hook formation of opening upwards, and seat frame above mentions multiple with back frame when realizing back frame layback
The function of seat frame decline when position, specifically, back frame is axis rotation and is retreated when human body layback with the second rotation point
It faces upward, the second rotation point rotates backward while the first rotation point being driven to rotate backward, and the hook formation of the first back frame side can make
The height of first rotation point is got higher, and the angle between upper layer support rod and lower layer support bar becomes larger, and upper layer support rod is raised, in turn
Realize that seat frame is raised.
Preferably, first flexible piece is integrally L-shaped or V-type shape, including flexible part a, flexible part b and it is formed in
Bending between flexible part a, flexible part b；First flexible piece uses the flexible material of toughening, and first flexible piece uses
The angle of the flexible material of toughening, the bending place opening can increase to 60 ° ~ 80 ° from 40 ~ 48 ° under original state.
L-type or V-type shape are the bending structures in order to embody the first flexible piece so that back frame hypsokinesis, seat frame deformation and
The reseting procedure of the two is more stable；First flexible piece uses the flexible material of toughening, due to the first flexible piece bending change
High-frequency, therefore can prevent the first flexible piece from not recoverable feelings occurring after frequent deformation using the flexible material of toughening
Condition keeps the effect of its elastic reset more preferable, prolongs the service life；The angle of bending can be increased to from 40 ~ 48 ° under original state
60 ° ~ 80 °, comfort and stability that back frame swings back, mentions and reset in seat frame is effectively ensured.
Preferably, the upper layer support rod, lower layer support bar and the second flexible piece are integrally formed, support at the middle and upper levels
Bar, lower layer support bar are rigidity, and the second flexible piece phase upper layer support rod, lower layer support bar are soft.
It is integrally formed and increases globality, the fastness of the first seat frame side and entire seat frame, the second flexible piece phase
Upper layer support rod, lower layer support bar are soft, can make that elastic deformation occurs in the second flexible piece part, and then form virtual the
4 rotation points, form movement chain mechanism, and deformation occurs or deformation occurs substantially for upper layer support rod, lower layer support bar itself,
Three are actual rotation point in four rotation points, substantially reduce to material requirements, are not required to excessively consider its deformation factor, while is right
User's supportive is more preferable, good stability.
Preferably, second flexible piece is in bending；Second flexible piece uses the flexible material of toughening, described
The angle of the second flexible piece of bending can increase to 45 ° ~ 60 ° from 35 ° under original state ~ 42 °.
Second flexible piece is in bending, convenient for bending and elastic deformation；Due to the height of the second flexible piece bending change
Frequency, therefore can prevent the second flexible piece after frequent deformation there is a situation where not resilient using the flexible material of toughening,
Keep the effect of its elastic reset more preferable, prolongs the service life；The angle of second flexible piece can be from 35 ° under original state ~ 42 ° of increasings
Greatly to 45 ° ~ 60 °, comfort and stability that back frame swings back, mentions and reset in seat frame is effectively ensured.
Preferably, being connected with seat frame support, the first back frame side and the between first seat frame side and the second seat frame side
Back frame support is connected between two back frame sides.
Seat frame support, back frame support respectively to the firmness for increasing seat frame entirety, back frame entirety, are not susceptible to shape
Become, while being also convenient for connection bed of cloth, so that bed of cloth is also not susceptible to collapse the case where waiting deformation.
Preferably, the attachment base is chassis, the lower part on chassis, which is fixedly connected sequentially, support gas bar and support base.
Compared with prior art, the beneficial effects of the present invention are:
The present invention provide it is a kind of it is easy to operate, structure is simple, stability is high, safety is good, comfort is good have swing back it is adaptive
The seat answered gravity regulatory function, meet ergonomics.The present invention passes through the simple motion chain mechanism and first for combining setting
The layback and reset of flexible piece assisted to realize back frame, can be according to the size of user's own body weight, after automatically adjusting user
Strength is faced upward, adaptive gravity regulatory function of swinging back is realized, meets ergonomics, wherein the first seat frame side, the second seat frame side
It is arranged to U-shaped shape, is to provide structure basis for movement chain mechanism and deformation space is provided；
Under the action of moving chain mechanism, when back frame is by active force backward, seat frame is backward and height is raised, and first is flexible
Deformation occurs for part in the trend for bending enlarged open；When back frame is gradually reduced by active force backward, seat frame is gradually forward
And height reduces, the first flexible piece gradually resets rebound, until returning to original state, easy to operate, structure is simple；Meanwhile it will
Seat frame, back frame are connected using the first flexible piece, and seat frame, back frame globality are stronger, on the one hand play the layback that auxiliary realizes back frame
And reset, on the other hand increase stability in hypsokinesis, comfort, reduces chopping sense.
Specifically, the first flexible piece can also be generated deformation when back frame is swung back, so that having during back frame layback
There is certain buffer function, comfort, stability, stationarity, safety are good, when human body starts to lean forward, are gradually reduced to back
Since the first flexible piece has screen resilience back frame reset can be better achieved, while the first flexible piece also has in the active force of frame
Play the role of supporting user's the small of the back, comfort, fastness are more preferably.
Detailed description of the invention
Fig. 1 be seat in embodiment 1, back frame, cooperate between attachment base after structural schematic diagram；
Fig. 2 is the enlarged structure schematic diagram in the portion A in Fig. 1；
Fig. 3 is the structural schematic diagram of back frame；
Fig. 4 is the enlarged structure schematic diagram in the portion B in Fig. 3；
Fig. 5 is the structural schematic diagram in the portion C in Fig. 3；
Fig. 6 is the structural schematic diagram of the first flexible piece；
Fig. 7 is the structural schematic diagram of seat frame；
Fig. 8 is another structural schematic diagram of seat frame；
Fig. 9 is the enlarged structure schematic diagram in the portion D in Fig. 8；
Figure 10 is the structural schematic diagram of attachment base；
Figure 11 is that seat is whole, moves the structural schematic diagram of chain mechanism；
Structural schematic diagram when Figure 12 is seat entirety and acts only on seat frame；
Structural schematic diagram when Figure 13 is seat entirety and acts on back frame, seat frame simultaneously；
Figure 14 is the enlarged structure schematic diagram in the portion E in Figure 13；
Figure 15 is the motion state structural schematic diagram of Figure 13 structural schematic diagram.
Specific embodiment
A specific embodiment of the invention is made a detailed explanation with reference to the accompanying drawing.
The present embodiment is related to the reference azimuth of each component, for example, above and below, it is forward and backward etc., be landed in user after seat with
The angle description of user；Wherein, the first following seat frame sides 110 and the second seat frame side 120 are symmetrical arranged, the first back frame side
210 and second back frame side 220 be symmetrical arranged, therefore, it is following according to described in the first seat frame side 110, the first back frame side 210 such as
First rotation the 410, second rotation of point point 420, third rotation point 430 and the virtual rotation of toughness the 4th point 440 etc. are also opposite
Claim setting.
Embodiment:
A kind of seat, as shown in Fig. 1 ~ 15, comprising:
Seat frame 100 has symmetrically arranged first seat frame side 110 and the second seat frame side 120, the first seat frame side 110 and second
U-shaped shape of the frame side 120 in opening backwards；Seat frame support is connected between first seat frame side 110 and the second seat frame side 120
150；
Back frame 200, its underpart are connect with seat frame 100, have symmetrically arranged first back frame side 210 and the second back frame side 220；The
Back frame support 250 is connected between one back frame side 210 and the second back frame side 220；
Attachment base 300, while being connect with the lower part of the lower part of seat frame 100, back frame 200, seat frame 100, back frame 200, attachment base 300
Three is connected to form the movement chain mechanism 400 to realize the layback of back frame 200 and reset；The attachment base 300 is chassis, bottom
The lower part of disk, which is fixedly connected sequentially, support rod 700 and support base 800；
Elastic deformation can occur under external force and the first flexible piece 500 of rebound can be resetted, using the flexible material of toughening
It is made, both ends are connect with seat frame upper surface 130, back frame front surface 230 respectively forms coherent curved-surface structure, and coherent at this
Curved-surface structure on be connected with the bed of cloth of integral type；First flexible piece 500 is whole L-shaped, specifically, such as Fig. 6 institute
Show, including flexible part a530, flexible part b540 and is formed in bending for opening forward between flexible part a530, flexible part b540
510, which is located at the gap between 100 rear end of seat frame and back frame front surface 230, when back frame 200 is by work backward
When firmly, deformation occurs for the first flexible piece 500, so that the opening at bending 510 is become larger, when back frame 200 is by active force backward
When being gradually reduced, the first flexible piece 500 gradually resets rebound, and bending place open shape is gradually reduced, until original state is returned to,
The angle of bending 510 can increase to 60 ° ~ 80 ° from 40 ~ 48 ° under original state.
It further says, first flexible piece 500 and the junction a140 of seat frame 100 are located at seat frame upper surface 130
Middle and back, the first flexible piece 500 are located at the middle and lower part of back frame front surface 230 with the junction b240 of back frame 200, specifically, the
The both ends of one flexible piece 500 are provided with connecting hole G520, and screw is after the connecting hole G520 at both ends by the first flexible piece 500
Both ends are fastened on respectively in the built-in nut 900 on junction a140 and junction b240；
Under the action of moving chain mechanism 400, when back frame 200 is by active force backward, seat frame 100 is backward and height is lifted
Height, deformation occurs for the first flexible piece 500, and bending place opening is in widened trend；When back frame 200 by active force backward gradually
When reduction, seat frame 100 is gradually reduced forward and highly, and the first flexible piece 500 gradually resets rebound, until returning to original state.
Wherein, the movement chain mechanism 400 includes by the 410, second rotation of end to end first rotation point point 420, the
The 440 virtual four-bar mechanism formed of 3 rotation points 430 and the rotation of virtual toughness the 4th point.
Specifically, first seat frame side 110 includes integrally formed rigid upper layer support rod 111, rigid lower layer branch
Strut 112 and elastic deformation can occur under external force and the second softer flexible piece 113 of rebound can be resetted, second is soft
Property part 113 be in bending, upper and lower ends connect with the front end of the front end of upper layer support rod 111, lower layer support bar 112 respectively；
Second flexible piece 113 specifically uses the flexible material of toughening, and the angle of the second flexible piece 113 can be under original state
35 ° ~ 42 ° increase to 45 ° ~ 60 °.
Wherein, the first rotation point is hingedly formed between 111 rear portion of upper layer support rod and 210 lower part of the first back frame side
410, the second rotation point 420 is hingedly formed between 300 rear portion of 210 lower part of the first back frame side and attachment base, after lower layer support bar 112
Third rotation point 430 is hingedly formed between 300 front of portion and attachment base, and virtual toughness the is formed on second flexible piece 113
4 rotation points 440；Wherein, as shown in figure 12, the line a450 of the first rotation point 410 and the second rotation point 420, the second rotation point
420 with third rotation point 430 line b460, third rotation point 430 with virtual toughness the 4th rotation point 440 line c470,
The line d480 of virtual 4th rotation point 440 and the first rotation point 410 joins end to end, and is formed and realizes the layback of back frame 200 and reset
Virtual four-bar mechanism movement chain mechanism 400.
More specifically point is said, the connection of upper layer support rod 111 the rear portion connecting hole A410b and 210 lower part of the first back frame side
The first rotation point 410 is hingedly formed between the B410a of hole, after the connecting hole C420a and attachment base 300 of 210 lower part of the first back frame side
Hingedly form the second rotation point 420 between the connecting hole D420b in portion, the connecting hole E430a at 112 rear portion of lower layer support bar with connect
Third rotation point 430 is hingedly formed between the connecting hole F430b of 300 fronts of seat, is formed on second flexible piece 113 virtual tough
Property the 4th rotation point 440.
In order to guarantee, 112 rear portion of lower layer support bar is equipped with spacing block set 1121, and 300 front of attachment base is provided with to accommodate
The limiting groove 310 of spacing block set 1121, the spacing block set 1121 are accommodated in limiting groove 310 and the two is articulated and connected shape
At third rotation point 430, and also there are carry out rotating movable limit to spacing block set 1121 in limiting groove 310
Gap.
Successively forward fold forms the first bending part 211, is folded upward at that form second curved for first back frame side, 210 bottom
Folding part 212, the whole hook formation in opening upwards of the first back frame side 210；The top of second bending part 212 forms first
Second rotation point 420 is formed at rotation point 410, lower part.
In addition, as shown in figure 11, due between seat frame 100 and the first flexible piece 500, back frame 200 and the first flexible piece 500
Between all there are the gaps of clamp hand, therefore, the first flexible piece 500 bending 510 lateral surface fitting setting one class three
The flexible finger part 1000 of angular shape, finger part 1000 include the side a1100 that setting is bonded with the lateral surface of bending 510,
The side b1200 of setting is bonded with back frame 200, wherein while a1100 with while the two angles insertion gap that is formed c1300 in, flexibility is anti-
Clamp hand part 1000 not only can be with finger, but also will not influence the deformation and reset of the first flexible piece 500.
In addition, as shown in figs. 10-11, the attachment base 300 is chassis, and the lower part on chassis, which is fixedly connected sequentially, support gas
Bar 700 and support base 800 are equipped with connecting hole 320 on attachment base 300 and support gas bar 700 for grafting.
The operational process and principle of the embodiment are: as shown in figs. 11 and 15, the E point is location of general gravity, that is, downward
Pressure, act in seat frame 100, F point acts on active force, the stress point of back frame 200 when being human body layback；
When human body layback, the layback strength on back frame 200F point is the size by own body weight and influences that weight is big,
Will be big to the active force of back frame 200F point, the small active force to back frame 200F point of weight will be small；
Specifically, generating the F point for acting on back frame 200, while the also pushing by E point of seat frame 100 when human body layback
Power；With the second rotation point 420 for axis rotation and reclining backward, the second rotation 420 rotates backward while driving the back frame 200
Rotation point 410 rotates backward, since the first rotation point 410 is to be hinged on 111 rear portion of upper layer support rod and the first back frame side
On 210 lower parts, and the U-shaped shape frame moulding of seat frame 100 is combined, when the first rotation point 410 pulls 111 rear portion of upper layer support rod
When back rotation, the height of the first rotation point 410 gets higher (the H change in elevation as shown in Figure 13,14), 111 He of upper layer support rod
Angle between lower layer support bar 112 becomes larger, and seat frame 100 backward and is raised；At the same time, the bending 510 of the first flexible piece 500
Place is deformed by the first rotation 410 opposite metamorphosis backward between back frame 200 of point, forms buffering.
When human body starts to lean forward, it is gradually reduced the active force to back frame 200, back frame 200 is in movement chain mechanism, first soft
Property part 500 under the action of reset forward, while seat frame 100 forward and height reduce；It further says, when human body is far from back frame
When 200, when being only seated at seat frame 100, i.e., only generate and act on location of general gravity E point in seat frame 100, movement chain mechanism 400,
Under the elastic reset effect of first flexible piece 500, realize that back frame 200 resets forward, seat frame 100 highly reduces.
It can be seen that the present embodiment reaches without the machinery adjustment mode by complexity, by by user's own body weight
Size realizes the automatic regulation function of user's layback strength, meets ergonomics.It is above interior described in this specification
Holding is only illustration made for the present invention.Those skilled in the art can be to described specific
Embodiment is done various modifications or additions or is substituted in a similar manner, without departing from the content of description of the invention
Or beyond the scope defined by this claim, it is within the scope of protection of the invention.
Claims (15)
1. a kind of seat, characterized by comprising:
Seat frame (100) has symmetrically arranged first seat frame side (110) and the second seat frame side (120), the first seat frame side (110)
U-shaped shape with the second seat frame side (120) in opening backwards；
Back frame (200), its underpart are connect with seat frame (100), have symmetrically arranged first back frame side (210) and the second back frame side
(220)；
Attachment base (300), while being connect with the lower part of the lower part of seat frame (100), back frame (200), seat frame (100), back frame
(200), attachment base (300) three is connected to form the movement chain mechanism (400) to realize back frame (200) layback and reset；
First flexible piece (500), both ends connect with seat frame (100), back frame (200) respectively, can occur under external force
Elastic deformation simultaneously can reset rebound；
Under the action of moving chain mechanism (400), when back frame (200) is swung back by active force backward, seat frame (100) is backward
It moves and height is raised, deformation occurs for the first flexible piece (500)；When the active force disappears or is gradually reduced, back frame (200)
It leans forward, seat frame (100) gradually reduces forward and highly, and the first flexible piece (500) gradually resets rebound, until returning to initial shape
State.
2. a kind of seat according to claim 1, it is characterised in that: the movement chain mechanism (400) includes by head and the tail phase
The first rotation point (410), the second rotation point (420), third rotation point (430) and virtual toughness the 4th even rotates point (440)
The virtual four-bar mechanism formed.
3. a kind of seat according to claim 2, it is characterised in that: first seat frame side (110) includes upper layer support
Bar (111), lower layer support bar (112) and elastic deformation can occur under external force and the second flexible piece of rebound can be resetted
(113), the upper and lower ends of second flexible piece (113) respectively with the front end of upper layer support rod (111), lower layer support bar
(112) front end connection.
4. a kind of seat according to claim 3, it is characterised in that: upper layer support rod (111) rear portion and the first back
The first rotation point (410), the first back frame side (210) lower part and attachment base (300) rear portion are hingedly formed between frame side (210) lower part
Between hingedly form the second rotation point (420), hingedly formed between lower layer support bar (112) rear portion and attachment base (300) front
Third rotates point (430), forms virtual toughness the 4th on second flexible piece (113) and rotates point (440).
5. a kind of seat according to claim 1, it is characterised in that: first flexible piece (500) be equipped with opening to
Preceding bending (510), the bending (510) are located at the gap between seat frame (100) rear end and back frame front surface (230).
6. a kind of seat according to claim 1, it is characterised in that: seat frame upper surface (130) part, the first flexibility
Part (500), back frame front surface (230) part three form coherent curved-surface structure, and connect on the coherent curved-surface structure
There is the bed of cloth of integral type.
7. a kind of seat described according to claim 1 or 5 or 6, it is characterised in that: the both ends of first flexible piece (500)
It is connect respectively with seat frame upper surface (130), back frame front surface (230).
8. a kind of seat according to claim 7, it is characterised in that: first flexible piece (500) and seat frame (100)
Junction a(140) it is located at the middle and back of seat frame upper surface (130), the junction b of the first flexible piece (500) and back frame (200)
(240) it is located at the middle and lower part of back frame front surface (230).
9. a kind of seat according to claim 4, it is characterised in that: lower layer support bar (112) rear portion is equipped with limit
Convex block (1121), attachment base (300) front are provided with the limiting groove (310) to accommodate spacing block set (1121), the limit
Convex block (1121) accommodates and the two interior to limiting groove (310) and is articulated and connected to form third rotation point (430), and is limiting
Also there are carry out rotating movable limit gap to spacing block set (1121) in groove (310).
10. a kind of seat according to claim 4, it is characterised in that: the first back frame side (210) bottom is successively forward
It is bent to form the first bending part (211), is folded upward to be formed the second bending part (212), the first back frame side (210) is integrally in opening
Upward hook formation；First rotation point (410) is formed at the top of second bending part (212), and the second rotation is formed at lower part
Point (420).
11. a kind of seat described according to claim 1 or 5 or 6, it is characterised in that: first flexible piece (500) is whole to be in
L-type or V-type shape, including flexible part a(530), flexible part b(540) and be formed in flexible part a(530), flexible part b(540) it
Between bending (510)；First flexible piece (500) uses the flexible material of toughening, and the angle of the bending (510) can be from first
40 ~ 48 ° under beginning state increase to 60 ° ~ 80 °.
12. a kind of seat according to claim 3, it is characterised in that: the upper layer support rod (111), lower layer support bar
(112) it being integrally formed with the second flexible piece (113), support rod (111), lower layer support bar (112) they are rigid at the middle and upper levels, second
Flexible piece (113) phase upper layer support rod (111), lower layer support bar (112) are soft.
13. a kind of seat according to claim 3, it is characterised in that: second flexible piece (113) is in bending；Institute
The flexible material that the second flexible piece (113) use toughening is stated, the angle of second flexible piece of bending (113) can be from initial shape
35 ° ~ 42 ° under state increase to 45 ° ~ 60 °.
14. a kind of seat according to claim 1, it is characterised in that: first seat frame side (110) and the second seat frame side
(120) it is connected with seat frame support (150) between, is connected with back frame branch between the first back frame side (210) and the second back frame side (220)
It supports (250).
15. a kind of seat according to claim 1, it is characterised in that: attachment base (300) lower part is fixedly connected sequentially
There are support gas bar (700) and support base (800).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/099880 WO2020232839A1 (en) | 2019-03-28 | 2019-08-09 | Seat |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019204118532 | 2019-03-28 | ||
| CN201920411853 | 2019-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110123054A true CN110123054A (en) | 2019-08-16 |
Family
ID=67571295
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920719078.7U Active CN210276509U (en) | 2019-03-28 | 2019-05-20 | Chair (Ref. now to FIGS) |
| CN201910417100.7A Withdrawn CN110123054A (en) | 2019-03-28 | 2019-05-20 | A kind of seat |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920719078.7U Active CN210276509U (en) | 2019-03-28 | 2019-05-20 | Chair (Ref. now to FIGS) |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN210276509U (en) |
| WO (1) | WO2020232839A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520091A (en) * | 2020-04-20 | 2021-10-22 | 博克1有限责任两合公司 | Device for a seat |
| US20220287466A1 (en) * | 2019-12-13 | 2022-09-15 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6709058B1 (en) * | 1999-04-09 | 2004-03-23 | Humanscale Corp. | Ergonomic chair |
| US6969116B2 (en) * | 2003-12-30 | 2005-11-29 | Hni Technologies Inc. | Chair with backward and forward passive tilt capabilities |
| DE202004016744U1 (en) * | 2004-10-28 | 2005-02-03 | BRÜSKE, Joachim | Office chair has spring adjusting mechanism comprising spindle which pulls chain over guide and moves lever against force of torsion bar |
| EP3508095B1 (en) * | 2016-09-01 | 2021-02-24 | UE Furniture Co., Ltd | Chair structure and chair |
| CN107788733A (en) * | 2016-09-01 | 2018-03-13 | 永艺家具股份有限公司 | A kind of seat support structure and seat |
| CN208658322U (en) * | 2018-02-07 | 2019-03-29 | 深圳市华仕杰家居用品有限公司 | Chair back waist support linkage mechanism |
-
2019
- 2019-05-20 CN CN201920719078.7U patent/CN210276509U/en active Active
- 2019-05-20 CN CN201910417100.7A patent/CN110123054A/en not_active Withdrawn
- 2019-08-09 WO PCT/CN2019/099880 patent/WO2020232839A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220287466A1 (en) * | 2019-12-13 | 2022-09-15 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
| US11786039B2 (en) * | 2019-12-13 | 2023-10-17 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
| CN113520091A (en) * | 2020-04-20 | 2021-10-22 | 博克1有限责任两合公司 | Device for a seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210276509U (en) | 2020-04-10 |
| WO2020232839A1 (en) | 2020-11-26 |
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Application publication date: 20190816 |
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