CN102090805B - Chair base plate with adjustable lifting and leaning force - Google Patents
Chair base plate with adjustable lifting and leaning force Download PDFInfo
- Publication number
- CN102090805B CN102090805B CN2009102496439A CN200910249643A CN102090805B CN 102090805 B CN102090805 B CN 102090805B CN 2009102496439 A CN2009102496439 A CN 2009102496439A CN 200910249643 A CN200910249643 A CN 200910249643A CN 102090805 B CN102090805 B CN 102090805B
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- Prior art keywords
- knob
- installing plate
- worm
- mid
- game
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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
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
-
- 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
- A47C7/002—Chair or stool bases
- A47C7/004—Chair or stool bases for chairs or stools with central column, e.g. office chairs
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to a chair base plate with adjustable lifting and leaning force, and belongs to the technical field of chair components. The chair base plate comprises a middle plate and a large plate, wherein the rear part of the large plate can swing around a rotating shaft downward relative to the middle plate, and a knob arranged below a front part of the middle plate is provided with a cavity. A mounting panel fixed with the knob is arranged in the cavity. A worm wheel is arranged at the position of the knob corresponding to the lower part of the mounting panel. The worm wheel can rotate around the axis of the worm wheel relative to the knob. A worm meshed with the worm wheel is arranged beside the worm wheel in the knob. One end of a handle extends into the knob from the outside of the knob and is in transmission connection with the worm. An adjustable bolt is in threaded connection with the worm wheel after passing through the large plate, the middle plate, and the mounting panel in the knob in turn from top to bottom. The adjustable bolt is coaxial with the worm wheel, and a spiral spring is sleeved at the position of the adjustable bolt below the middle plate and above the mounting panel.
Description
Technical field
The present invention relates to the adjustable Chair underframe of a kind of reclining power, belong to the technical field of chair tool assembly.
Background technology
(notification number: CN2922618), it is by last dish, and mid-game and knob are formed for a kind of up-down and reclining Chair underpan; Knob is fixed on through CARRIAGE BOLTS and coils; Dust cover, washer and spring are installed in the mid-game, and mid-game is provided with the U sections, and U type bracing frame connects back steel sheet seat and last dish; The back steel sheet seat connects mid-game through rivet, and U type bracing frame connects the back steel sheet seat through rivet.Mid-game is provided with the up-down pump, one side on chair, coil apparatus for controlling of lifting is installed, last dish is connected with bearing through rivet with mid-game.When the chair reclining; Its medi-spring plays the reset response to the chair reclining; But if the elastic acting force of wanting regulating spring is with regulating spring during to the reset response power of chair reclining, technique scheme need be bent through turning knob with the upper-lower position of adjusting knob on CARRIAGE BOLTS, thereby the compression degree of regulating spring is with the reset response power of regulating spring to the chair reclining; It operates inconvenience, and comparatively requires great effort.
Summary of the invention
The invention solves the existing spring of reclining power that provides of existing reclining Chair underpan and regulate operation inconvenience, problem such as waste time and energy provides a kind of reclining power spring to regulate easy to operate, the time saving and energy saving adjustable Chair underframe of reclining power.
Above-mentioned technical purpose of the present invention solves through following technical scheme: it comprises that the mid-game that is used for being connected with air pressure rod and be connected through horizontally disposed rotating shaft with mid-game and is positioned at the deep bid of mid-game top; Deep bid is used for being connected with seat support; The rear portion of deep bid can be around the shaft with respect to mid-game to lower swing, the lower front of mid-game is provided with knob, knob has cavity; Be provided with in the cavity of said knob and the fixing installing plate of knob; Knob is provided with worm gear corresponding to the position of installing plate below, and said worm gear can be provided with and the worm gear engaged worm corresponding to worm gear is other in the knob around self axis with respect to knob; Handle one end from knob overhanging go in the knob be connected with said worm-drive; Regulate bolt pass after the installing plate in deep bid, mid-game and the knob from top to bottom successively and between the said worm gear screw thread match, said adjusting bolt is coaxial with worm gear, regulates bolt and is arranged with helical spring corresponding to below the mid-game and the position more than the installing plate.The present invention is in transmission connection through handle and worm screw; When turning handle, can drive worm-drive; Worm screw then drives worm gear and rotates, and worm gear then moves up or down along the axis direction of regulating bolt, thereby the installing plate that installs and fixes together with knob is moved up or down; Thereby the compression degree of adjustable screw spring is realized the purpose of adjustable screw spring to chair reclining power then.During operation, the user need not to bend, and only needs that hand is stretched to chair one side and holds handle and rotate and get final product, and operation is very easy, and time saving and energy saving.
As preferably; Said worm screw is provided with coaxial with it inner hexagonal hole; Said knob is respectively equipped with first through hole that supplies handle end to pass through corresponding to the position at worm screw two ends, and the end that said handle is connected with worm-drive is formed with the outer-hexagonal structure that the inner hexagonal hole with worm screw matches.Wherein, can be convenient to the assembling of handle and worm screw between worm screw and the handle through inner hexagonal hole and outer-hexagonal respective outer side edges, only need outer-hexagonal structure with handle be inserted in the inner hexagonal hole of worm screw and get final product; And corresponding to the position at worm screw two ends first through hole is set respectively at knob; Handle is inserted in arbitrary first through hole to be cooperated with the inner hexagonal hole of worm screw; Thereby make handle not only can be positioned at the left side of chair but also can be positioned at the right side of chair, thereby satisfy different position needs.
As preferably, the outer-hexagonal structure of said handle is equipped with stop screw in the end of handle outer-hexagonal structure after passing the inner hexagonal hole of worm screw, and the cap portion diameter of stop screw is greater than the maximum gauge of worm screw inner hexagonal hole.Wherein, through outer-hexagonal structure end the outer-hexagonal structure that stop screw can guarantee handle is set and in the inner hexagonal hole of worm screw, does not deviate from, simultaneously, also be convenient to the assembling and the dismounting maintenance of handle at handle.
As preferably, be embedded with coaxial with it nut in the said worm gear, said adjusting bolt is through matching with the screw thread between realization and the worm gear that cooperates of nut.Wherein, Promptly can in worm gear, be embedded nut realizes and the threaded engagement of regulating bolt; Threaded engagement that also can directly the mode of machining screw realizes regulating bolt and worm gear in the worm gear centre bore, thus the thread matching structure between worm gear and the adjusting bolt simplified.
As preferably; Said installing plate is formed with left lug vertical with the installing plate body and right lug respectively corresponding to the position at worm screw two ends; Be formed with second through hole coaxial on said left lug and the right lug respectively with worm screw; Be provided with the U-shaped gripper shoe in the space that left side lug, right lug and installing plate body constitute, the two ends of U-shaped gripper shoe are formed with the arc groove to worm screw two ends swivel bearing.Wherein, left lug and second through hole on the right lug on the installing plate body can supply handle end to pass, and U type gripper shoe then can play swivel bearing to worm screw, thereby is convenient to the assembling of worm screw.
As preferably; Said adjusting bolt is formed with the first anti-rotation projection near the position of cap portion; The said first anti-rotation projection cross section is polygonized structure; Form downward sunk structure around the position that supplies the adjusting bolt to pass on the deep bid, said downward sunk structure place is formed with the first anti-rotation hole that matches with the first anti-rotation projection.Wherein, downwards sunk structure can make the upper end of regulating bolt be lower than deep bid upper surface or with the flush of deep bid, to make things convenient for the assembling of deep bid and chair; In addition; Regulating the first anti-rotation projection that bolt forms near cap portion and the first anti-rotation hole matches and can effectively prevent to regulate relatively rotating between bolt and the deep bid; Be not rotated thereby can guarantee to regulate when worm gear rotates bolt, thereby realize worm gear moving up and down on the adjusting bolt.Wherein, the first anti-rotation projection can be various polyhedral structures such as trihedral, tetrahedron or pentahedron.
As preferably, said helical spring is corresponding to being arranged with dust cover between mid-game and the knob, and the upper bottom portion of said dust cover and mid-game lower surface are fixed, and the end portion of dust cover stretches in the knob.Wherein, dust falls in the knob in the use of dust cover shell side formula, keeps the working environment of spring clean and tidy.
As preferably, said installing plate is provided with several screwed holes, and mounting screw passes screwed hole with installing plate and matches installing plate and knob are fixed together from the knob lower end.
As preferably, said helical spring two ends up and down are formed with the flat surface grinding respectively, thereby can make helical spring two ends respectively with the mid-game lower surface and the installing plate upper surface is smooth contacts, and prevent rocking of spring.
As preferably, the position that said adjusting bolt passes installing plate is formed with at least one anti-rotation planar portions, and said anti-rotation planar portions and the parallel axes of regulating bolt are formed with on the correspondingly said installing plate and the adjusting identical perforation in bolt cross section.Wherein, Regulate bolt and match, can effectively prevent to regulate relatively rotating between bolt and the installing plate through the perforation on anti-rotation planar portions and the installing plate, thereby when worm gear rotates; Can guarantee to regulate bolt and installing plate is not rotated, and realize that worm gear moves up and down along regulating the bolt axis direction.Wherein, the quantity of anti-rotation planar portions can be one, two, three, or even more quantity.
Characteristics such as therefore, it is easy to operate that the present invention has the adjusting of reclining power spring, time saving and energy saving.
Description of drawings
Fig. 1 is a kind of main TV structure sketch map of the present invention;
Fig. 2 is a kind of inversion perspective view of the present invention;
Fig. 3 is a kind of structural representation of looking up of the present invention;
Fig. 4 is the A-A revolved view of Fig. 3;
Fig. 5 is the perspective view after the present invention removes knob;
Fig. 6 is decomposition texture sketch mapes such as knob of the present invention and worm gear, worm screw.
The specific embodiment
Pass through specific embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment: shown in Fig. 1-6; Deep bid 1 connects through horizontally disposed rotating shaft 3 with the mid-game 2 that is used for being connected with air pressure rod, and deep bid 1 is positioned at the top of mid-game 2, and deep bid 1 is used for being connected with seat support; The rear portion of deep bid 1 can be around the shaft 3 with respect to mid-game 2 to lower swing; The lower front of mid-game 2 is provided with knob 4, and knob 4 has cavity, is provided with the installing plate of fixing with knob 45 in the cavity of knob 4; Installing plate 5 is provided with 3 screwed holes 23, and mounting screw 24 passes screwed hole 23 with installing plate 5 and matches installing plate and knob are fixed together from the knob lower end.Knob 4 is provided with worm gear 6 corresponding to the position of installing plate 5 belows; Worm gear 6 can rotate with respect to knob 4 around self axis; Are provided with and worm gear 6 engaged worm 7 corresponding to worm gear 6 sides in the knob 4; Installing plate 5 is formed with left lug vertical with the installing plate body 8 and right lug 9 respectively corresponding to the position at the two ends of worm screw 7, is formed with second through hole 10 coaxial with worm screw 7 on left lug 8 and the right lug 9 respectively, is provided with U-shaped gripper shoe 11 in the space that left lug 8, right lug 9 and installing plate body constitute; The two ends of U-shaped gripper shoe 11 are formed with the arc groove 12 to the two ends swivel bearing of worm screw 7, and worm screw 7 is provided with coaxial with it inner hexagonal hole 13.Handle 14 1 ends stretch into outside knob 4 in the knob 4 and are in transmission connection with worm screw 7; Knob 4 is respectively equipped with first through hole 15 that supplies handle 14 ends to pass through corresponding to the position at worm screw 7 two ends; The end that handle 14 and worm screw 7 are in transmission connection is formed with the outer-hexagonal structure 16 that the inner hexagonal hole 13 with worm screw 7 matches; Inner hexagonal hole 13 backs that the outer-hexagonal structure 16 of handle 14 is passed worm screw 7 are equipped with stop screw 17 in the end of handle outer-hexagonal structure, and the cap portion diameter of stop screw 17 is greater than the maximum gauge of worm screw 7 inner hexagonal holes 13.
Adjusting bolt 18 matches with nut 19 screw threads that are embedded in worm gear 6 after passing the installing plates 5 in deep bid 1, mid-game 2 and the knob 4 from top to bottom successively; It is coaxial with worm gear 6 to regulate bolt 18; Regulate bolt 18 and be arranged with helical spring 20 with the position of installing plate more than 5 corresponding to mid-game below 2, the two ends up and down of helical spring 20 are formed with flat surface grinding 25 respectively.The adjusting bolt is formed with the first anti-rotation projection 26 near the position of cap portion; The first anti-rotation projection, 26 cross sections are quadrilateral structure; Form downward sunk structure 21 around the position that supplies adjusting bolt 18 to pass on the deep bid 1, sunk structure 21 places are formed with the first anti-rotation hole 27 that matches with the first anti-rotation projection downwards.The position that adjusting bolt 18 passes installing plate is formed with two anti-rotation planar portions 28, and anti-rotation planar portions 28 and the parallel axes of regulating bolt 18 correspondingly are formed with on the installing plate and the identical perforation (not shown) in adjusting bolt cross section.Helical spring 20 is corresponding to being arranged with dust cover 22 between mid-game 2 and the knob 4, and the upper bottom portion of dust cover 22 and mid-game lower surface are fixed, and the end portion of dust cover stretches in the knob.
The control air pressure rod goes up and down and the mechanism of seat support reclining is a routine techniques, does not give unnecessary details at this.Through being in transmission connection of handle and worm screw; When turning handle, can drive worm-drive; Worm screw then drives worm gear and rotates, and worm gear then moves up or down along the axis direction of regulating bolt, thereby the installing plate that installs and fixes together with knob is moved up or down; Thereby the compression degree of adjustable screw spring is realized the purpose of adjustable screw spring to chair reclining power then.During operation, the user need not to bend, and only needs that hand is stretched to chair one side and holds handle and rotate and get final product, and operation is very easy, and time saving and energy saving.
Claims (10)
1. Chair underframe that reclining power is adjustable; Comprise that the mid-game that is used for being connected with air pressure rod and be connected through horizontally disposed rotating shaft with mid-game and is positioned at the deep bid of mid-game top, deep bid is used for being connected with seat support, the rear portion of deep bid around the shaft with respect to mid-game to lower swing; It is characterized in that: the lower front of mid-game is provided with knob; Knob has cavity, is provided with in the cavity of said knob and the fixing installing plate of knob, and knob is provided with worm gear corresponding to the position of installing plate below; Said worm gear around self axis with respect to knob; Is provided with and the worm gear engaged worm corresponding to worm gear is other in the knob, handle one end from knob overhanging go in the knob is connected with said worm-drive, regulate bolt pass successively from top to bottom installing plate in deep bid, mid-game and the knob afterwards and between the said worm gear screw thread match; Said adjusting bolt is coaxial with worm gear, regulates bolt and is arranged with helical spring corresponding to below the mid-game and the position more than the installing plate.
2. the adjustable Chair underframe of reclining power according to claim 1; It is characterized in that said worm screw is provided with coaxial with it inner hexagonal hole; Said knob is respectively equipped with first through hole that supplies handle end to pass through corresponding to the position at worm screw two ends, and the end that said handle is connected with worm-drive is formed with the outer-hexagonal structure that the inner hexagonal hole with worm screw matches.
3. the adjustable Chair underframe of reclining power according to claim 2; The outer-hexagonal structure that it is characterized in that said handle is equipped with stop screw in the end of handle outer-hexagonal structure after passing the inner hexagonal hole of worm screw, and the cap portion diameter of stop screw is greater than the maximum gauge of worm screw inner hexagonal hole.
4. according to claim 1 or the adjustable Chair underframe of 2 or 3 described reclining power, it is characterized in that being embedded with in the said worm gear coaxial with it nut, said adjusting bolt is through matching with the screw thread between realization and the worm gear that cooperates of nut.
5. according to claim 1 or the adjustable Chair underframe of 2 or 3 described reclining power; It is characterized in that said installing plate is formed with left lug vertical with the installing plate body and right lug respectively corresponding to the position at worm screw two ends; Be formed with second through hole coaxial on said left lug and the right lug respectively with worm screw; Be provided with the U-shaped gripper shoe in the space that left side lug, right lug and installing plate body constitute, the two ends of U-shaped gripper shoe are formed with the arc groove to worm screw two ends swivel bearing.
6. according to claim 1 or the adjustable Chair underframe of 2 or 3 described reclining power; It is characterized in that said adjusting bolt is formed with the first anti-rotation projection near the position of cap portion; The said first anti-rotation projection cross section is polygonized structure; Form downward sunk structure around the position that supplies the adjusting bolt to pass on the deep bid, said downward sunk structure place is formed with the first anti-rotation hole that matches with the first anti-rotation projection.
7. according to claim 1 or the adjustable Chair underframe of 2 or 3 described reclining power; It is characterized in that said helical spring is corresponding to being arranged with dust cover between mid-game and the knob; The upper bottom portion of said dust cover and mid-game lower surface are fixed, and the end portion of dust cover stretches in the knob.
8. according to claim 1 or the adjustable Chair underframe of 2 or 3 described reclining power, it is characterized in that said installing plate is provided with several screwed holes, mounting screw passes screwed hole with installing plate and matches installing plate and knob are fixed together from the knob lower end.
9. according to claim 1 or the adjustable Chair underframe of 2 or 3 described reclining power, it is characterized in that said helical spring two ends up and down are formed with the flat surface grinding respectively.
10. according to claim 1 or the adjustable Chair underframe of 2 or 3 described reclining power; It is characterized in that the position that said adjusting bolt passes installing plate is formed with at least one anti-rotation planar portions; Said anti-rotation planar portions and the parallel axes of regulating bolt are formed with on the correspondingly said installing plate and the adjusting identical perforation in bolt cross section.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102496439A CN102090805B (en) | 2009-12-10 | 2009-12-10 | Chair base plate with adjustable lifting and leaning force |
| PCT/CN2010/000373 WO2011069316A1 (en) | 2009-12-10 | 2010-03-25 | Base plate of chair with adjustable lifting and leaning force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102496439A CN102090805B (en) | 2009-12-10 | 2009-12-10 | Chair base plate with adjustable lifting and leaning force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102090805A CN102090805A (en) | 2011-06-15 |
| CN102090805B true CN102090805B (en) | 2012-11-07 |
Family
ID=44124198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102496439A Active CN102090805B (en) | 2009-12-10 | 2009-12-10 | Chair base plate with adjustable lifting and leaning force |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102090805B (en) |
| WO (1) | WO2011069316A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105380435A (en) | 2015-12-09 | 2016-03-09 | 中威控股集团有限公司 | Seat support plate, base plate thereof, base plate forming method, and base plate installation structure |
| US10342353B2 (en) | 2017-06-20 | 2019-07-09 | Zhongwei Holding Group Co., Ltd | Chair reclining adjustment mechanism |
| CN107668995A (en) * | 2017-10-06 | 2018-02-09 | 中山市东立家具配件有限公司 | A kind of inclination controller of office chair |
| CN109832862B (en) * | 2019-03-04 | 2024-05-24 | 佛山市科智美家具有限公司 | Multifunctional adjusting chassis group |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904809Y (en) * | 2006-01-25 | 2007-05-30 | 番禺通赞五金塑料制品有限公司 | Tilting easily controllable chair bottom plate |
| CN2914826Y (en) * | 2006-04-22 | 2007-06-27 | 番禺通赞五金塑料制品有限公司 | Chair underpan capable of adjusting tilting and lifting conveniently |
| CN2922618Y (en) * | 2006-07-17 | 2007-07-18 | 番禺通赞五金塑料制品有限公司 | Base of lifting and leaning chair |
| CN201542120U (en) * | 2009-12-10 | 2010-08-11 | 陈千奎 | Chair underframe with adjustable inclining force |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4975410B2 (en) * | 2006-10-18 | 2012-07-11 | 株式会社岡村製作所 | Gas spring operation lever mounting structure in a chair |
| CN201341637Y (en) * | 2009-01-12 | 2009-11-11 | 陈千奎 | Chair tray |
-
2009
- 2009-12-10 CN CN2009102496439A patent/CN102090805B/en active Active
-
2010
- 2010-03-25 WO PCT/CN2010/000373 patent/WO2011069316A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904809Y (en) * | 2006-01-25 | 2007-05-30 | 番禺通赞五金塑料制品有限公司 | Tilting easily controllable chair bottom plate |
| CN2914826Y (en) * | 2006-04-22 | 2007-06-27 | 番禺通赞五金塑料制品有限公司 | Chair underpan capable of adjusting tilting and lifting conveniently |
| CN2922618Y (en) * | 2006-07-17 | 2007-07-18 | 番禺通赞五金塑料制品有限公司 | Base of lifting and leaning chair |
| CN201542120U (en) * | 2009-12-10 | 2010-08-11 | 陈千奎 | Chair underframe with adjustable inclining force |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-299488A 2001.10.30 |
| JP特开平10-94560A 1998.04.14 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102090805A (en) | 2011-06-15 |
| WO2011069316A1 (en) | 2011-06-16 |
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Effective date of registration: 20150928 Address after: 325606 Industrial Zone, Qingjiang Town, Zhejiang, Yueqing Patentee after: The middle prestige Group Co.,Ltd that controls interest Address before: Yueqing City, Zhejiang province Qingjiang 325606 Industrial Zone (Zhongwei Holdings Limited) Patentee before: Chen Qiankui |