CN113768309A - Multifunctional adjusting device for chair chassis - Google Patents
Multifunctional adjusting device for chair chassis Download PDFInfo
- Publication number
- CN113768309A CN113768309A CN202111127526.2A CN202111127526A CN113768309A CN 113768309 A CN113768309 A CN 113768309A CN 202111127526 A CN202111127526 A CN 202111127526A CN 113768309 A CN113768309 A CN 113768309A
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- China
- Prior art keywords
- chassis
- frame
- net frame
- rod
- chair
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 abstract description 28
- 230000008859 change Effects 0.000 abstract description 24
- 230000002427 irreversible effect Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 208000020307 Spinal disease Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
- A47C7/02—Seat parts
- A47C7/24—Upholstered seats
-
- 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
-
- 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
- A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
-
- 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
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
The invention provides a multifunctional adjusting device for a chair chassis, which comprises a chassis and is characterized in that a net frame is movably connected to the upper side of the chassis, an adjusting mechanism for adjusting the curvature of the net frame is arranged on one side of the chassis, the net frame is movably connected to the chassis, an adjusting mechanism for adjusting the curvature of the net frame is arranged on one side of the chassis, the curvature of the net frame is actively adjusted by the adjusting mechanism, the net cloth fixed in the net frame is driven to deform through the curvature change of the net frame so as to realize the change of the contact area with a human body, compared with the change of the contact surface by deformation of the net cloth after passive stress, the original contact area of the net cloth and the human body is larger, the deformation degree after stress is lower, the stress of the net cloth is more uniform, the probability of irreversible deformation of the net cloth is reduced, the service life of a chair is prolonged, the sitting feeling change caused by the deformation of the net cloth is also reduced, the comfort level and the stability of a seat are improved, and the allowance space required by the curvature change of the net frame is provided by the movable connection of the net frame and the chassis, has good development prospect.
Description
Technical Field
The invention relates to the field of office supplies, in particular to a multifunctional adjusting device for a chair chassis.
Background
With the social development and the gradual increase of the proportion of computer office work, the time that people sit in front of an office table every day is increased, the long-time sitting also brings negative effects to the health of office workers, the incidence of various spinal diseases is increased year by year, and the rapid increase of the ergonomic chair market is brought.
The chassis of current engineering chair and the design that the back often adopted the screen frame to add ventilative screen cloth have also compromise the gas permeability when guaranteeing the support degree, and the atress deformation through the screen cloth brings area of contact's change and carries out the adaptation to the people of different weights, but this kind of mode, the atress of screen cloth surface each point is very inhomogeneous, can lead to the irreversible deformation of screen cloth, shortens the life-span of screen cloth, and the change that the seat was experienced also can be brought in the deformation of the big amplitude of screen cloth.
Like application number CN 201320838568.1's an office chair, it is exactly that the integrated mode through seat frame and screen cloth carries out the bearing to the user, but the irreversible deformation of screen cloth can be brought to long-time atress is inhomogeneous, and when screen cloth deformation was too big, can bring the change that the seat leaned on in the experience, when the screen cloth atress sinks, the relative height of the buffering sponge of seat frame front end configuration will improve, brings the change of sitting the sense, leads to the reduction of comfort level.
Disclosure of Invention
The invention aims to provide a multifunctional adjusting device for a chair chassis.
In order to achieve the purpose, the invention provides the following technical scheme:
a multifunctional adjusting device for a chair chassis comprises a chassis and is characterized in that a net frame is movably connected to the upper side of the chassis, and an adjusting mechanism for adjusting the curvature of the net frame is arranged on one side of the chassis.
As a further scheme of the invention: the rear end of the screen frame is fixedly connected with the chassis, and the front end of the screen frame is movably connected with the chassis.
As a further scheme of the invention: the groove structure is arranged at the front end of the upper surface of the chassis, the guide rod is fixed on the inner side of the groove through a screw assembly, the guide frame is arranged at the bottom of the front end of the net frame, the guide frame is sleeved on the outer side of the guide rod, and the front end of the net frame can slide along the direction of the guide rod through the guide frame.
As a further scheme of the invention: the contact part of the inner side of the guide frame and the guide rod is of a funnel-shaped structure with two large ends and a small middle.
As a further scheme of the invention: the adjusting mechanism comprises a gas rod and an adjusting wrench, the gas rod is horizontally embedded in the chassis and arranged towards the front end of the chassis, the tail end of the gas rod is hinged with the chassis, the front end of the gas rod is hinged with the net frame, the net frame is movably connected with the chassis, and the adjusting wrench used for controlling the stroke of the gas rod is arranged on one side of the chassis.
As a further scheme of the invention: one end of the adjusting wrench is provided with a control valve, a valve seat of the control valve is fixedly connected with the chassis, a valve rod is fixedly connected with the adjusting wrench, the opening and closing of the valve are controlled through the rotation of the adjusting wrench, and the two ends of the control valve are respectively connected with the outside and the air inlet and outlet of the air rod controlled by the air rod.
As a further scheme of the invention: the adjusting spanner is hinged to one side of the front end of the chassis, a torsional spring is sleeved at the hinged position, and the torsional spring always presses the adjusting spanner to be attached to the surface of the chassis, namely the state of the control valve when the control valve is closed.
As a further scheme of the invention: a piston rod is arranged in the air rod, the air rod is connected with the net frame through the piston rod, one side, far away from the piston rod, in the air rod is an air cavity, and the air cavity is communicated with the control valve.
As a further scheme of the invention: the inner side of the air rod is provided with a pressure spring, the pressure spring is sleeved on the outer side of the piston rod, and the pressure spring always presses the piston rod to one side of the air cavity to discharge air in the air cavity.
Advantageous effects
1. The net frame is movably connected with the chassis, one side of the chassis is provided with the adjusting mechanism for adjusting the curvature of the net frame, the curvature of the net frame is actively adjusted by the adjusting mechanism, the change of the curvature of the net frame drives the deformation of the net cloth fixed in the net frame to realize the change of the contact area with the human body, compared with the change of the contact surface by the deformation of the net cloth after passive stress, the net cloth has larger initial contact area with the human body, has low deformation degree after stress and more uniform stress of the net cloth, reduces the irreversible deformation possibility of the net cloth, prolongs the service life of the chair, also reduces the change of sitting feeling caused by the deformation of the net cloth, improves the comfort level and the stability of the seat, and the net frame and the chassis are movably connected to provide the space allowance required by the curvature change of the net frame.
2. The adjusting mechanism comprises an air rod and an adjusting wrench, wherein one end of the adjusting wrench is provided with a control valve for controlling the air inlet and the air outlet of the air rod, the position of the movable end of the net frame is controlled by the air rod and the adjusting, and the curvature of the net frame is controlled and locked indirectly.
3. The pressure spring is arranged on the inner side of the air rod, the pressure spring is arranged to assist in locking the stroke of the air rod, namely the curvature of the net frame, so that the driving change of the net frame caused by the weight of a user is prevented, meanwhile, the automatic reset of the piston rod can be realized, and when no person leans against the net frame, the air rod drives the net frame to move under the action of the pressure spring to realize the curvature reset by opening the control valve.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the chassis of the present invention.
Fig. 3 is a sectional view of the structure of the chassis of the present invention.
Fig. 4 is an enlarged view of the structure at a in fig. 3 according to the present invention.
Fig. 5 is a cross-sectional view of the air rod structure of the present invention.
Fig. 6 is a schematic view of the adjusting wrench according to the present invention.
In FIGS. 1-6: 1-chassis, 2-screen frame, 201-guide frame, 3-adjusting mechanism, 4-guide rod, 5-air rod, 501-piston rod, 502-air cavity, 503-pressure spring, 6-adjusting spanner and 7-control valve.
Detailed Description
The following will clearly and completely describe the specific technical scheme of the invention with reference to fig. 1-6 in the attached drawings of the specification of the invention;
referring to fig. 1 to 6, fig. 1 is an overall structural schematic view of an embodiment of the present invention, fig. 2 is a structural schematic view of a chassis of the present invention, fig. 3 is a structural cross-sectional view of the chassis of the present invention, fig. 4 is an enlarged structural schematic view of a point a of fig. 3 of the present invention, fig. 5 is a structural cross-sectional view of an air rod of the present invention, and fig. 6 is a structural schematic view of an adjustment wrench of the present invention.
The multifunctional adjusting device for the chair chassis provided by the embodiment comprises a chassis 1 and is characterized in that a net frame 2 is movably connected to the upper side of the chassis 1, and an adjusting mechanism 4 for adjusting the curvature of the net frame 2 is arranged on one side of the chassis 1;
the curvature of the net frame 2 is actively adjusted by the adjusting mechanism 4, the change of the curvature of the net frame 2 drives the net cloth fixed in the net frame 2 to deform to realize the change of the contact area with a human body, compared with the mode that the deformation of the net cloth changes the contact surface after passive stress, the net cloth has larger initial contact area with the human body, the deformation degree after the stress is low, the stress of the net cloth is more uniform, the irreversible deformation possibility of the net cloth is reduced, the service life of a seat is prolonged, the sitting feeling change caused by the deformation of the net cloth is also reduced, the comfort level and the stability of a seat rest are improved, and the net frame 2 and the chassis 1 adopt a movable connection mode to provide the space allowance required by the curvature change of the net frame 2.
Furthermore, the rear end of the screen frame 2 is fixedly connected with the chassis 1, and the front end is movably connected with the chassis 1;
the net frame 2 and the chassis 1 are movably connected by one end, the one end of the fixed connection ensures the stability of the whole fixed net frame 2, and the movable connection net frame 2 can only move on one side after being stressed to realize the curvature change, so that the net frame can not slide due to the movement of two sides.
The front end of the upper surface of the chassis 1 is provided with a groove structure, a guide rod 3 is fixed on the inner side of the groove through a screw assembly, the bottom of the front end of the net frame 2 is provided with a guide frame 201, the guide frame 201 is sleeved on the outer side of the guide rod 3, and the front end of the net frame 2 can slide along the direction of the guide rod 3 through the guide frame 201;
the motion of the movable end of the net frame 2 is guided through the guide frame 201 and the guide rod 3, and the stability and the smoothness of the motion are ensured.
Specifically, the contact part between the inner side of the guide frame 201 and the guide rod 3 is in a funnel-shaped structure with large two ends and small middle;
the funnel-shaped structure reserves space allowance, reserves a movable space for the angle change of the guide frame 201 at the front end of the net frame 2 possibly caused by the curvature change of the net frame 2, and prevents the guide frame 201 from being blocked in sliding on the guide rail 3 due to the angle change.
Further, the adjusting mechanism 4 comprises an air rod 5 and an adjusting wrench 6, the air rod 5 is horizontally embedded in the chassis 1 and arranged towards the front end of the chassis 1, the tail end of the air rod is hinged with the chassis 1, the front end of the air rod is hinged with the net frame 2, the movable connection between the net frame 2 and the chassis 1 is realized, and the adjusting wrench 6 for controlling the stroke of the air rod 5 is arranged on one side of the chassis 1;
the arrangement of the air rod 5 and the adjusting wrench 6 realizes the control of the position of the movable end of the net frame 2 and indirectly realizes the control of the curvature of the net frame 2.
Specifically, one end of an adjusting wrench 6 is provided with a control valve 7, a valve seat of the control valve 7 is fixedly connected with a chassis 1, a valve rod is fixedly connected with the adjusting wrench 6, the opening and closing of the control valve 7 are controlled through the rotation of the adjusting wrench 6, and two ends of the control valve 7 are respectively connected with the outside and an air rod 5 to control the air inlet and outlet of the air rod 5;
the air inlet and outlet of the air rod 5 can be conveniently controlled by combining the adjusting wrench 6 and the control valve 7.
The adjusting wrench 6 is hinged to one side of the front end of the chassis 1, a torsion spring is sleeved at the hinged position, and the torsion spring always presses the adjusting wrench 6 to be in a state of being attached to the surface of the chassis 1, namely a state when the control valve 7 is closed;
the automatic reset of the adjusting wrench 6 is realized by the torsion spring, and the automatic reset of the adjusting wrench 6 enables the air supply from the outside to the air rod 5 to be quickly disconnected when no operation is performed, so that the stroke of the air rod 5, namely the accurate control of the curvature of the net frame 2 is realized.
Specifically, a piston rod 501 is arranged in the air rod 5, the air rod 5 is connected with the net frame 2 through the piston rod 501, an air cavity 502 is arranged on one side, far away from the piston rod 501, in the air rod 5, and the air cavity 502 is communicated with the control valve 7;
by the arrangement of the piston rod 501 and the air chamber 502, when the control valve 7 is closed, the position of the piston rod 501, that is, the curvature of the net frame 2, can be locked by the air pressure in the air chamber 502.
Specifically, a pressure spring 503 is arranged on the inner side of the air rod 5, the pressure spring 503 is sleeved on the outer side of the piston rod 501, and the pressure spring 503 always presses the piston rod 501 to one side of the air cavity 502 to discharge air in the air cavity 502;
through pressure spring 503, supplementary locking to the stroke of gas pole 5 promptly frame 2 curvature, prevent the change of frame 2 curvature because of user's weight brings, also can realize the automatic re-setting of piston rod 501 simultaneously, when nobody leaned on, through opening control valve 7, gas pole 5 drove the motion of frame 2 realization curvature under pressure spring 503 effect and resets.
Claims (9)
1. The multifunctional adjusting device for the chair chassis comprises a chassis (1) and is characterized in that a net frame (2) is movably connected to the upper side of the chassis (1), and an adjusting mechanism (4) for adjusting the curvature of the net frame (2) is arranged on one side of the chassis (1).
2. The multifunctional adjusting device for the chassis of the chair as claimed in claim 1, wherein: one end of the screen frame (2) is fixedly connected with the chassis (1), and the other end is movably connected with the chassis (1).
3. The multifunctional adjusting device for the chassis of the chair as claimed in claim 2, wherein: the surface of the chassis (1) is provided with a groove structure, a guide rod (3) is fixed on the inner side of the groove, a guide frame (201) is arranged at the bottom of the front end of the screen frame (2), the guide frame (201) is sleeved on the outer side of the guide rod (3), and the movable connecting end of the screen frame (2) can slide along the direction of the guide rod (3) through the guide frame (201).
4. The multifunctional adjusting device for the chassis of the chair as claimed in claim 3, wherein: the contact part of the guide frame (201) and the guide rod (3) is in a funnel-shaped structure with two large ends and a small middle.
5. The multifunctional adjusting device for the chassis of the chair as claimed in claim 1, wherein: adjustment mechanism (5) include gas pole (5) and adjust spanner (6), and gas pole (5) are inlayed and are established in chassis (1), and one end is connected with chassis (1), and the other end is connected with net frame (2), realizes the swing joint of net frame (2) and chassis (1), and one side of chassis (1) is provided with adjust spanner (6) that are used for controlling gas pole (5) stroke.
6. The multifunctional adjusting device for the chassis of the chair as claimed in claim 5, wherein: one end of the adjusting wrench (6) is provided with a control valve (7), the two ends of the control valve (7) are respectively connected with the outside and the air rod (5) to control the air inlet and the air outlet of the air rod (5), and the control valve (7) is controlled to be opened and closed through the adjusting wrench (6).
7. The multifunctional adjusting device for the chassis of the chair as claimed in claim 6, wherein: the adjusting wrench (6) is connected with the chassis (1) through a torsion spring, and the torsion spring brings the adjusting wrench (6) to a state when the control valve (7) is closed.
8. The multifunctional adjusting device for the chassis of the chair as claimed in claim 6, wherein: a piston rod (501) is arranged in the air rod (5), the air rod (5) is connected with the net frame (2) through the piston rod (501), an air cavity (502) is arranged on one side, far away from the piston rod (501), in the air rod (5), and the air cavity (502) is communicated with the control valve (6).
9. The multifunctional adjusting device for a chair chassis of claim 8, wherein: the outer side of the piston rod (501) is sleeved with a pressure spring (503) to press the piston rod (501) to one side of the air cavity (502) all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127526.2A CN113768309B (en) | 2021-09-26 | 2021-09-26 | Multifunctional adjusting device for chair chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127526.2A CN113768309B (en) | 2021-09-26 | 2021-09-26 | Multifunctional adjusting device for chair chassis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113768309A true CN113768309A (en) | 2021-12-10 |
| CN113768309B CN113768309B (en) | 2024-02-02 |
Family
ID=78853397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111127526.2A Active CN113768309B (en) | 2021-09-26 | 2021-09-26 | Multifunctional adjusting device for chair chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113768309B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810470A (en) * | 1994-06-30 | 1996-01-16 | Toyobo Co Ltd | Seat and production thereof |
| JP2004351108A (en) * | 2003-05-30 | 2004-12-16 | Itoki Crebio Corp | Chair |
| JP2005034290A (en) * | 2003-07-18 | 2005-02-10 | Okamura Corp | Seat structure of chair |
| CN102846068A (en) * | 2012-09-18 | 2013-01-02 | 浙江永艺家具股份有限公司 | Rotary chair chassis |
| KR20140013899A (en) * | 2012-07-24 | 2014-02-05 | 타휴아 퍼니쳐코포레이션 | Control device for chair |
| TWM495786U (en) * | 2014-08-04 | 2015-02-21 | jin-long Xu | Improved structure of net chair seat |
| US20150272328A1 (en) * | 2014-03-26 | 2015-10-01 | Shantou Luxus Furniture Ltd. | Chair chassis and chair having the same |
-
2021
- 2021-09-26 CN CN202111127526.2A patent/CN113768309B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810470A (en) * | 1994-06-30 | 1996-01-16 | Toyobo Co Ltd | Seat and production thereof |
| JP2004351108A (en) * | 2003-05-30 | 2004-12-16 | Itoki Crebio Corp | Chair |
| JP2005034290A (en) * | 2003-07-18 | 2005-02-10 | Okamura Corp | Seat structure of chair |
| KR20140013899A (en) * | 2012-07-24 | 2014-02-05 | 타휴아 퍼니쳐코포레이션 | Control device for chair |
| CN102846068A (en) * | 2012-09-18 | 2013-01-02 | 浙江永艺家具股份有限公司 | Rotary chair chassis |
| US20150272328A1 (en) * | 2014-03-26 | 2015-10-01 | Shantou Luxus Furniture Ltd. | Chair chassis and chair having the same |
| TWM495786U (en) * | 2014-08-04 | 2015-02-21 | jin-long Xu | Improved structure of net chair seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113768309B (en) | 2024-02-02 |
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