CN106820715A - A kind of seat tray - Google Patents
A kind of seat tray Download PDFInfo
- Publication number
- CN106820715A CN106820715A CN201710109360.9A CN201710109360A CN106820715A CN 106820715 A CN106820715 A CN 106820715A CN 201710109360 A CN201710109360 A CN 201710109360A CN 106820715 A CN106820715 A CN 106820715A
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- Prior art keywords
- voussoir
- base
- backrest
- rotating shaft
- connector
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims 1
- 230000037396 body weight Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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—Supports for the head or the back
- A47C7/40—Supports for the head or the back for the back
- A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
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- Chairs Characterized By Structure (AREA)
Abstract
A kind of seat tray, including seat cushion supporting plate, backrest connecting plate and base, described backrest connecting plate one end is connected by rotating shaft with base rotation, the base is rotated with seat cushion supporting plate and is connected, the backrest connecting plate end rotates with connector and is connected, the connector other end is provided with and automatically adjusts backrest rigid mount, the base is provided with lifting regulating rod, the connector is provided with one group of limiting tooth, the lift adjustment rod end surface is provided with the oblique angle telescopic head being adapted with limiting tooth, the limiting tooth is on the basis of the telescopic direction of the oblique angle telescopic head, its left surface gradient is 20 40 °, its right flank gradient is 45 70 °.There is a constant slope limiting tooth left and right sides, but the less side of gradient, and lifting regulating rod cannot lean on the power of returning of spring itself to return, it is necessary to could be returned away by an external force, therefore, eliminating one and return walking apparatus, such as shift fork is operated simpler.
Description
Technical field
The invention belongs to office chair, swivel chair mechanical field, especially a kind of seat tray.
Background technology
Major part backrest has the seat for facing upward function at present, and backrest is connected by torsion spring or stage clip, is removing backrest
Automatically reset after external force.Chinese patent such as Publication No. CN203106378 discloses a kind of seat tray of use leaf spring, wraps
Include a tray main body, a leaf spring and a back rest supports plate.Tray main body base plate formed a longitudinal fluting, depth from base plate middle part to
Edge is gradually increased.Leaf spring width is slightly less than recess width, and one end is arranged on tray main body base plate near groove location, the other end
It is free end, can be in a groove bent downwardly and automatically reset.Back rest supports plate is "L" shaped, and horizontal component is shelved on plate
On the support cross rib of spring, end is hinged with tray main body side wall.When seated user's back contact backrest, back rest supports plate is dynamic to layback
When, leaf spring provides a lasting, uniform and appropriate resilient support.But, such as personage's overweight, Overexertion is leaned on
Backrest, causes leaf spring excessive deformation, make backrest rigidity not enough, angle of inclination it is excessive and cause seat on people's disequilibrium and
Fall down, there is insecurity.And for example to disclose a kind of backrest inclination angle adjustable for the Chinese patent of Publication No. CN101731861
Seat, including chair leg, chassis, support and backrest and seat cushion, backrest is arranged on back-end support, and cushion front support point is arranged on
The middle part of support, rear support point is by the link supports that are hinged on chassis；Torsion mechanism, shifting fork mechanism are provided with chassis, are turned round
Force mechanisms include hexagonal bar, and the front end of support is socketed in the both ends of hexagonal bar, and hexagonal bar is located in chassis and is socketed with main torsion
Glue and auxiliary torsional force rubber and left and right locating piece, the main torsional force rubber, auxiliary torsional force rubber have vestibule and rear ear, left and right positioning respectively
One pin is installed, the rear ear of torsional force rubber withstands on the pin in initial position, and the vestibule of the main torsional force rubber is provided with block
Support member；The shifting fork mechanism includes rotary handle, the shift fork being made up of fixed shift fork and movable shift fork, and movable shift fork is provided with
Can clutch be resisted against auxiliary torsional force rubber vestibule bottom block, using the seat of the structure, the dynamics of backrest leans back can
Regulation.The adjustable reclined by angle of the backrest of the invention, it is necessary to stir shift fork when recovering initial position, operates cumbersome.
The content of the invention
Backrest the invention aims to solve seat in the prior art rigidly can not be with the changes of weight of user
Automatically adjust, cause to use dangerous, backrest recovers initial position needs to stir shift fork, and the problem of troublesome poeration is realized
A kind of apparatus structure that backrest angle can be made to recover initial position is simple, and can automatically be adjusted automatically according to the size of seat cushion stress
Section backrest rigidity, the people for adapting to different weight uses, comfortableness seat tray higher.
Above-mentioned technical problem of the invention is mainly what is be addressed by following technical proposals：A kind of seat tray, bag
Seat cushion supporting plate, backrest connecting plate and base are included, the seat cushion supporting plate down either side is longitudinally provided with wing plate, is provided between the wing plate
Base, the base is opening up U-shaped, and described backrest connecting plate one end is connected by rotating shaft with base rotation, the bottom
Seat is rotated with seat cushion supporting plate and is connected, and the backrest connecting plate end rotates with connector and is connected, and the connector other end is provided with
Backrest rigid mount is automatically adjusted, the base is provided with lifting regulating rod, and the seat cushion supporting plate is provided with sliding groove, the sliding groove
It is adapted with lifting regulating rod, the connector is provided with one group of limiting tooth, the lift adjustment rod end surface is provided with and limiting tooth phase
The oblique angle telescopic head of adaptation, on the basis of the telescopic direction of the oblique angle telescopic head, its left surface gradient is 20- to the limiting tooth
40 °, its right flank gradient is 45-70 °.When people is sat on seat, seat cushion supporting plate is subject to the power for pushing, and is automatically adjusting backrest
In the presence of rigid mount, the rigidity of backrest is improve, it is ensured that the people of heavyweight vehicle excessively will not swing back backrest, so as to improve
Security.Common lifting regulating rod is only by the effect of seat oscilaltion, and the present invention realizes another function, leads to
The position-limit mechanism crossed between lifting regulating rod and connector, realizes human body and leans against on backrest, find a comfortable angle it
Backrest is fixed afterwards.There is a constant slope limiting tooth left and right sides in the present invention, but the less side of gradient, lifting
Adjusting rod cannot lean on time power of spring itself to return, it is necessary to could be returned away by an external force, therefore, eliminate one and return dress
Put, operate simpler.
Preferably, the backrest rigid mount that automatically adjusts includes connector rotating shaft, tension spring, regulation litter, pressure
Power spring, voussoir support and voussoir, the connector other end are provided with connector rotating shaft, and the base both sides are provided with and connector
The chute that rotating shaft is adapted, described connector rotating shaft or so are connected with tension spring respectively, the tension spring other end with adjust
Section litter is connected, and the base both sides are provided with the regulation chute being adapted with regulation litter, between the base and seat cushion supporting plate
Compression spring and voussoir are provided with from bottom to top, and the wedge surface of the voussoir is arranged in a crossed manner with regulation litter and contacts with each other, the wedge
Block is respectively arranged on the left side and the right side voussoir support, and the voussoir support is connected with base, and the voussoir is connected with voussoir bracket slide,
The voussoir upside is in contact with seat cushion supporting plate.When people is sat on seat, seat cushion supporting plate is subject to the power for pushing, and voussoir is pushed,
Regulation litter causes that tension spring is stretched, and the heavier people's tension spring level of stretch of body weight is bigger, due to the stretching of tension spring
Degree is limited, according to the body weight scope of drawn one after so that tension spring by backrest power range of stretch because just being contracted
Small, body weight is heavier, because just smaller by backrest power range of stretch, improves the rigidity of backrest, it is ensured that the people of heavyweight vehicle will not
Excessively backrest is swung back, so as to improve security.
Preferably, the backrest rigid mount that automatically adjusts includes connector rotating shaft, tension spring, regulation litter, pressure
Power spring, voussoir support and voussoir, the connector other end are provided with connector rotating shaft, and the base both sides are provided with and connector
The chute that rotating shaft is adapted, described connector rotating shaft or so are connected with tension spring respectively, the tension spring other end with adjust
Section litter is connected, and the base both sides are provided with the regulation chute being adapted with regulation litter, between the base and seat cushion supporting plate
Compression spring and voussoir are provided with from bottom to top, and the wedge surface of the voussoir is arranged in a crossed manner with regulation litter and contacts with each other, the wedge
Block is respectively arranged on the left side and the right side voussoir support, and the voussoir support is connected with base, and the voussoir passes through voussoir rotating shaft and voussoir
Bracket slide is connected, and torsion spring is provided between the voussoir and voussoir rotating shaft, and the voussoir upside is in contact with seat cushion supporting plate.In wedge
Voussoir rotating shaft and torsion spring are added between block and voussoir support so that under voussoir during press contacts regulation litter, voussoir has certain upper
Rake angle degree, same gravity on mechanics, the change of contact surface angle, the size of component also changes therewith, therefore, voussoir is to regulation
The transverse component of litter just becomes big, and regulation litter can be slided more smoothly with the size of body weight, and effect becomes apparent from.
Preferably, being arranged with roller on the regulation litter, the wedge surface of the voussoir is by roller and regulation litter phase
Contact.It is arranged with after roller, voussoir very smooth can will adjust litter stress forward slip, and the transmission effect of power is brighter
It is aobvious, will not be stuck.
Beneficial effect：Backrest is set to recover the device of initial position for one group of limiting tooth in the present invention, limiting tooth or so two
There is a constant slope side, but the less side of gradient, lifting regulating rod cannot lean on spring itself return power return, it is necessary to by
One external force could be returned away, therefore, eliminate one and return walking apparatus, such as shift fork driving lever etc., it is only necessary to which once backrest is just for push-and-pull
Initial position can be recovered, operated simpler.
The present invention realize it is a kind of can automatically adjust backrest rigidity automatically according to the size of seat cushion stress, adapt to not consubstantiality
The people of weight uses, the more preferable seat tray of comfortableness.Because the deformation range of tension spring is limited, as the people of different weight
When taking seat cushion, the power that seat cushion supporting plate is received directly is stretched tension spring by voussoir and regulation litter, so as to reduce
The deformation range of tension spring；When the top backrest of human body, the deformation range that tension spring occurs by the power on backrest is
Greatly reduce, increased the rigidity of backrest.Therefore, backrest of the invention does not exist because body weight is overweight, and causes to lean on
Back of the body stress is excessive and layback is excessive, causes to make one the safety problem of wrestling.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of seat tray of the present invention.
Accompanying drawing 2 is the elevational cross-sectional view of seat tray of the present invention.
Accompanying drawing 3 is that seat tray of the present invention looks up semi-cutaway.
Accompanying drawing 4 is the structural representation between limiting tooth of the present invention and lifting regulating rod.
Accompanying drawing 5 is the structure between voussoir described in seat tray and the voussoir support described in the embodiment of the present invention two
Schematic diagram.
1st, seat cushion supporting plate；2nd, backrest connecting plate；3rd, base；4th, wing plate；5th, rotating shaft；6th, connector；7th, connector rotating shaft；8、
Tension spring；9th, litter is adjusted；10th, chute is adjusted；11st, compression spring；12nd, voussoir；13rd, lifting regulating rod；14th, limiting tooth；
15th, spring；16th, voussoir rotating shaft；17th, torsion spring；18th, voussoir support；19th, backrest stiffness means are automatically adjusted.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment one：As Figure 1-5, a kind of seat tray, including seat cushion supporting plate 1, backrest connecting plate 2 and base 3, institute
State the down either side of seat cushion supporting plate 1 and be longitudinally provided with wing plate 4, base 3 is provided between the wing plate 4, the base 3 is opening up
U-shaped, described one end of backrest connecting plate 2 is rotated with base 3 by rotating shaft 5 and is connected, and the base 3 is rotated with seat cushion supporting plate 1 and is connected,
The end of backrest connecting plate 2 rotates with connector 6 and is connected, and the other end of the connector 6 is provided with and automatically adjusts backrest rigidly dress
19 are put, the base 3 is provided with lifting regulating rod 13, the seat cushion supporting plate 1 is provided with sliding groove, the sliding groove and lifting regulating rod
13 are adapted, and the connector 6 is provided with one group of limiting tooth 14, and the end face of the lifting regulating rod 13 is provided with and is adapted with limiting tooth 14
Oblique angle telescopic head, the limiting tooth on the basis of the telescopic direction of the oblique angle telescopic head, its left surface gradient be 25 °, its
Right flank gradient is 55 °.
When people is sat on seat, seat cushion supporting plate 1 is subject to the power for pushing, and is automatically adjusting the effect of backrest rigid mount 19
Under, improve the rigidity of backrest, it is ensured that the people of heavyweight vehicle excessively will not swing back backrest, so as to improve security.Commonly
Lifting regulating rod 13 only by the effect of seat oscilaltion, and the present invention realizes another function, by lift adjustment
Position-limit mechanism between bar 13 and connector 6, realizes human body and leans against on backrest, finds backrest after a comfortable angle
It is fixed.There is a constant slope left and right sides of limiting tooth 14 in the present invention, but the less side of gradient, lifting regulating rod
13 cannot lean on time power of spring itself to return, it is necessary to could be returned away by an external force, therefore, eliminate one and return walking apparatus,
Operation is simpler.
The backrest rigid mount 19 that automatically adjusts includes connector rotating shaft 7, tension spring 8, regulation litter 9, pressure bullet
Spring 11, voussoir support 18 and voussoir 12, the other end of the connector 6 are provided with connector rotating shaft 7, the both sides of the base 3 be provided with
The chute that connector rotating shaft 7 is adapted, the connector rotating shaft 7 or so is connected with tension spring 8 respectively, the tension spring 8
The other end is connected with regulation litter 9, and roller is arranged with the regulation litter 9, and the inclined-plane is by roller in the regulation phase of litter 9
Contact.It is arranged with after roller, voussoir 12 very smooth can will adjust the stress forward slip of litter 9, and the transmission effect of power is more
Substantially, will not be stuck.
The both sides of the base 3 be provided with the regulation regulation chute 10 that is adapted of litter 9, the base 3 and seat cushion supporting plate 1 it
Between be provided with compression spring 11 and voussoir 12 from bottom to top, the wedge surface of the voussoir 12 is arranged in a crossed manner with regulation litter 9 and phase mutual connection
Touch, the voussoir 12 is respectively arranged on the left side and the right side voussoir support 18, and the voussoir support 18 is connected with base 3, the voussoir 12
It is slidably connected with voussoir support 18, the upside of the voussoir 12 is in contact with seat cushion supporting plate 1.When people is sat on seat, seat cushion support
Plate 1 is subject to the power for pushing, and voussoir 12 is pushed, and regulation litter 9 causes that tension spring 8 is stretched, and people's tension spring 8 of body weight more weight draws
Stretch that degree is bigger, because the degree of drawing of tension spring 8 is limited, according to the body weight scope of drawn one after so that
Tension spring 8 by backrest power range of stretch because just being reduced, and body weight is heavier, because just smaller by backrest power range of stretch, is improve
The rigidity of backrest, it is ensured that the people of heavyweight vehicle excessively will not swing back backrest, so as to improve security.
The device for making backrest recover initial position in the present invention is one group of limiting tooth 14, and the left and right sides of limiting tooth 14 has
Constant slope, but the less side of gradient, lifting regulating rod 13 cannot lean on the power of returning of spring itself to return, it is necessary to by one
External force could be returned away, therefore, eliminate one and return walking apparatus, such as shift fork driving lever etc., it is only necessary to which once backrest just can be extensive for push-and-pull
Multiple initial position, operates simpler.
The present invention realize it is a kind of can automatically adjust backrest rigidity automatically according to the size of seat cushion stress, adapt to not consubstantiality
The people of weight uses, the more preferable seat tray of comfortableness.Because the deformation range of tension spring 8 is limited, when different weight
When people takes seat cushion, the power that seat cushion supporting plate 1 is received directly is stretched tension spring 8 by voussoir 12 and regulation litter 9, so that
Reduce the deformation range of tension spring 8；When the top backrest of human body, the deformation that tension spring 8 occurs by the power on backrest
Scope has been greatly reduced, and increased the rigidity of backrest.Therefore, backrest of the invention does not exist because body weight is overweight,
And cause backrest stress excessive and swing back excessively, cause to make one the safety problem of wrestling.
Embodiment two：As Figure 1-5, a kind of seat tray, including seat cushion supporting plate 1, backrest connecting plate 2 and base 3, institute
State the down either side of seat cushion supporting plate 1 and be longitudinally provided with wing plate 4, base 3 is provided between the wing plate 4, the base 3 is opening up
U-shaped, described one end of backrest connecting plate 2 is rotated with base 3 by rotating shaft 5 and is connected, and the base 3 is rotated with seat cushion supporting plate 1 and is connected,
The end of backrest connecting plate 2 rotates with connector 6 and is connected, and the other end of the connector 6 is provided with and automatically adjusts backrest rigidly dress
19 are put, the base 3 is provided with lifting regulating rod 13, the seat cushion supporting plate 1 is provided with sliding groove, the sliding groove and lifting regulating rod
13 are adapted, and the connector 6 is provided with one group of limiting tooth 14, and the end face of the lifting regulating rod 13 is provided with and is adapted with limiting tooth 14
Oblique angle telescopic head, the limiting tooth on the basis of the telescopic direction of the oblique angle telescopic head, its left surface gradient be 35 °, its
Right flank gradient is 65 °.When people is sat on seat, seat cushion supporting plate 1 is subject to the power for pushing, and is automatically adjusting backrest rigid mount
In the presence of 19, the rigidity of backrest is improve, it is ensured that the people of heavyweight vehicle excessively will not swing back backrest, so as to improve safety
Property.Common lifting regulating rod 13 is only by the effect of seat oscilaltion, and the present invention realizes another function, by rising
Position-limit mechanism between falling tone pole 13 and connector 6, realizes human body and leans against on backrest, after finding a comfortable angle
Backrest is fixed.There is a constant slope left and right sides of limiting tooth 14 in the present invention, but the less side of gradient, lifting
Adjusting rod 13 cannot lean on time power of spring itself to return, it is necessary to could be returned away by an external force, therefore, eliminate one and return
Device, operates simpler.
The backrest rigid mount that automatically adjusts includes connector rotating shaft 7, tension spring 8, regulation litter 9, compression spring
11st, voussoir support 18 and voussoir 12, the other end of the connector 6 are provided with connector rotating shaft 7, and the both sides of the base 3 are provided with and connect
The chute that device rotating shaft 7 is adapted is connect, connector rotating shaft 7 or so is connected with tension spring 8 respectively, and the tension spring 8 is another
One end is connected with regulation litter 9, and roller is arranged with the regulation litter 9, and the inclined-plane is connected by roller in regulation litter 9
Touch.It is arranged with after roller, voussoir 12 very smooth can will adjust the stress forward slip of litter 9, and the transmission effect of power is brighter
It is aobvious, will not be stuck.
The both sides of the base 3 be provided with the regulation regulation chute 10 that is adapted of litter 9, the base 3 and seat cushion supporting plate 1 it
Between be provided with compression spring 11 and voussoir 12 from bottom to top, the wedge surface of the voussoir 12 is arranged in a crossed manner with regulation litter 9 and phase mutual connection
Touch, the voussoir 12 is respectively arranged on the left side and the right side voussoir support 18, and the voussoir support 18 is connected with base 3, the voussoir 12
It is slidably connected with voussoir support 18 by voussoir rotating shaft 16, torsion spring 17 is provided between the voussoir 12 and voussoir rotating shaft 16, it is described
The upside of voussoir 12 is in contact with seat cushion supporting plate 1.Voussoir rotating shaft 17 and torsion spring 18 are added between voussoir 12 and voussoir support 18, is made
When obtaining 12 times press contacts regulation litter 9 of voussoir, voussoir 12 has certain angle that upwarps, same gravity on mechanics, contacts face angle
The change of degree, the size of component also changes therewith, therefore, the transverse component of 12 pairs of regulation litter 9 of voussoir just becomes big, adjusts litter
9 more smoothly can slide with the size of body weight, and effect becomes apparent from.
The device for making backrest recover initial position in the present invention is one group of limiting tooth 14, and the left and right sides of limiting tooth 14 has
Constant slope, but the less side of gradient, lifting regulating rod 13 cannot lean on the power of returning of spring itself to return, it is necessary to by one
External force could be returned away, therefore, eliminate one and return walking apparatus, such as shift fork driving lever etc., it is only necessary to which once backrest just can be extensive for push-and-pull
Multiple initial position, operates simpler.
The present invention realize it is a kind of can automatically adjust backrest rigidity automatically according to the size of seat cushion stress, adapt to not consubstantiality
The people of weight uses, the more preferable seat tray of comfortableness.Because the deformation range of tension spring 8 is limited, when different weight
When people takes seat cushion, the power that seat cushion supporting plate 1 is received directly is stretched tension spring 8 by voussoir 12 and regulation litter 9, so that
Reduce the deformation range of tension spring 8；When the top backrest of human body, the deformation that tension spring 8 occurs by the power on backrest
Scope has been greatly reduced, and increased the rigidity of backrest.Therefore, backrest of the invention does not exist because body weight is overweight,
And cause backrest stress excessive and swing back excessively, cause to make one the safety problem of wrestling.
Claims (4)
1. a kind of seat tray, including seat cushion supporting plate, backrest connecting plate and base, it is characterised in that：The seat cushion supporting plate both sides
Lower section is longitudinally provided with wing plate, and base is provided between the wing plate, and the base is opening up U-shaped, the backrest connecting plate
One end is connected by rotating shaft with base rotation, and the base and seat cushion supporting plate are rotated and be connected, the backrest connecting plate end and company
Connect device and rotate connection, the connector other end is provided with and automatically adjusts backrest rigid mount, and the base is provided with lifting regulating rod,
The seat cushion supporting plate is provided with sliding groove, and the sliding groove is adapted with lifting regulating rod, and the connector is provided with one group of limiting tooth,
The lift adjustment rod end surface is provided with the oblique angle telescopic head being adapted with limiting tooth, and the limiting tooth is with the oblique angle telescopic head
On the basis of telescopic direction, its left surface gradient is 20-40 °, and its right flank gradient is 45-70 °.
2. a kind of seat tray according to claim 1, it is characterised in that：The backrest rigid mount that automatically adjusts includes
Connector rotating shaft, tension spring, regulation litter, compression spring, voussoir support and voussoir, the connector other end are provided with connection
Device rotating shaft, the base both sides be provided with the chute being adapted with connector rotating shaft, described connector rotating shaft or so respectively with pulling force
Spring is connected, and the tension spring other end is connected with regulation litter, and the base both sides are provided with what is be adapted with regulation litter
Regulation chute, is provided with compression spring and voussoir, wedge surface and the tune of the voussoir from bottom to top between the base and seat cushion supporting plate
Section litter is arranged in a crossed manner and contacts with each other, and the voussoir is respectively arranged on the left side and the right side voussoir support, the voussoir support and base
It is connected, the voussoir is connected with voussoir bracket slide, the voussoir upside is in contact with seat cushion supporting plate.
3. a kind of seat tray according to claim 1, it is characterised in that：The backrest rigid mount that automatically adjusts includes
Connector rotating shaft, tension spring, regulation litter, compression spring, voussoir support and voussoir, the connector other end are provided with connection
Device rotating shaft, the base both sides be provided with the chute being adapted with connector rotating shaft, described connector rotating shaft or so respectively with pulling force
Spring is connected, and the tension spring other end is connected with regulation litter, and the base both sides are provided with what is be adapted with regulation litter
Regulation chute, is provided with compression spring and voussoir, wedge surface and the tune of the voussoir from bottom to top between the base and seat cushion supporting plate
Section litter is arranged in a crossed manner and contacts with each other, and the voussoir is respectively arranged on the left side and the right side voussoir support, the voussoir support and base
It is connected, the voussoir is connected by voussoir rotating shaft with voussoir bracket slide, and torsion spring, institute are provided between the voussoir and voussoir rotating shaft
Voussoir upside is stated to be in contact with seat cushion supporting plate.
4. a kind of seat tray according to claim 1 or 2 or 3, it is characterised in that：Rolling is arranged with the regulation litter
Cylinder, the wedge surface of the voussoir is in contact by roller with regulation litter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109360.9A CN106820715A (en) | 2017-02-27 | 2017-02-27 | A kind of seat tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109360.9A CN106820715A (en) | 2017-02-27 | 2017-02-27 | A kind of seat tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106820715A true CN106820715A (en) | 2017-06-13 |
Family
ID=59134414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710109360.9A Pending CN106820715A (en) | 2017-02-27 | 2017-02-27 | A kind of seat tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106820715A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2604228Y (en) * | 2002-12-06 | 2004-02-25 | 廖世奇 | Rice mill with wedge type pressure regulating mechanism |
| CN201360761Y (en) * | 2009-03-05 | 2009-12-16 | 陈千奎 | Locking mechanism of chair chassis |
| CN204635613U (en) * | 2015-03-27 | 2015-09-16 | 浙江永艺家具股份有限公司 | A kind of anti-tipping support |
| CN104939560A (en) * | 2015-03-26 | 2015-09-30 | 浙江永艺家具股份有限公司 | Damping adjusting device for chair seat of seat-back linkage chair |
| ES2596510A1 (en) * | 2016-08-02 | 2017-01-10 | Actiu Berbegal Y Formas S.A. | Device for tilting the backrest of office chairs (Machine-translation by Google Translate, not legally binding) |
-
2017
- 2017-02-27 CN CN201710109360.9A patent/CN106820715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2604228Y (en) * | 2002-12-06 | 2004-02-25 | 廖世奇 | Rice mill with wedge type pressure regulating mechanism |
| CN201360761Y (en) * | 2009-03-05 | 2009-12-16 | 陈千奎 | Locking mechanism of chair chassis |
| CN104939560A (en) * | 2015-03-26 | 2015-09-30 | 浙江永艺家具股份有限公司 | Damping adjusting device for chair seat of seat-back linkage chair |
| CN204635613U (en) * | 2015-03-27 | 2015-09-16 | 浙江永艺家具股份有限公司 | A kind of anti-tipping support |
| ES2596510A1 (en) * | 2016-08-02 | 2017-01-10 | Actiu Berbegal Y Formas S.A. | Device for tilting the backrest of office chairs (Machine-translation by Google Translate, not legally binding) |
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Application publication date: 20170613 |
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