CN102090805A - Chair base plate with adjustable lifting and leaning force - Google Patents
Chair base plate with adjustable lifting and leaning force Download PDFInfo
- Publication number
- CN102090805A CN102090805A CN2009102496439A CN200910249643A CN102090805A CN 102090805 A CN102090805 A CN 102090805A CN 2009102496439 A CN2009102496439 A CN 2009102496439A CN 200910249643 A CN200910249643 A CN 200910249643A CN 102090805 A CN102090805 A CN 102090805A
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- Prior art keywords
- knob
- installing plate
- worm
- mid
- game
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- 230000001105 regulatory effect Effects 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002699 waste material Substances 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
- 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
Landscapes
- 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
A kind of lifting and reclining Chair underpan (notification number: CN2922618), it is by last dish, mid-game and knob are formed, knob is fixed on by 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 by rivet, and U type bracing frame connects the back steel sheet seat by rivet.Mid-game is provided with the lifting pump, one side on chair, coil apparatus for controlling of lifting is installed, last dish is connected with bearing by 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 by 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 existing spring of reclining power that provides of existing reclining Chair underpan is provided regulates 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 by the following technical programs: it comprises the deep bid that is used for the mid-game that is connected with air pressure rod and and be connected by horizontally disposed rotating shaft with mid-game and is positioned at the 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 described knob and the fixing installing plate of knob, knob is provided with worm gear corresponding to the position of installing plate below, described worm gear can be around self axis with respect to knob, be 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 be connected with described worm-drive, regulate bolt and pass deep bid from top to bottom successively, screw thread matches after the installing plate in mid-game and the knob and between the described worm gear, described 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 by handle and worm screw, when turning handle, can drive worm-drive, worm screw then drives worm gear and rotates, 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, described worm screw is provided with coaxial with it inner hexagonal hole, described knob is respectively equipped with first through hole that passes through for handle end corresponding to the position at worm screw two ends, and the end that described 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 by 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 described 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, by 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 described worm gear, described adjusting bolt is by matching with the screw thread between realization and the worm gear that cooperates of nut.Wherein, promptly can be embedded nut in worm gear 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 thread matching structure between worm gear and the adjusting bolt simplified.
As preferably, described 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 described 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 on the installing plate body and second through hole on the right lug can pass for handle end, and U type gripper shoe then can play swivel bearing to worm screw, thereby is convenient to the assembling of worm screw.
As preferably, described adjusting bolt is formed with the first anti-rotation projection near the position of cap portion, the described first anti-rotation projection cross section is polygonized structure, form downward sunk structure around the position of passing for the adjusting bolt on the deep bid, described 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 upper surface flush of deep bid, to make things convenient for the assembling of deep bid and chair; In addition, the first anti-rotation projection that the close cap portion of adjusting bolt forms and the first anti-rotation hole match 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, described helical spring is corresponding to being arranged with dust cover between mid-game and the knob, and the upper bottom portion of described 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, described 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, described 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 described adjusting bolt passes installing plate is formed with at least one anti-rotation planar portions, and described anti-rotation planar portions is parallel with the axis of regulating bolt, is formed with on the correspondingly described 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 by 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 schematic diagram 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 schematic diagrames such as knob of the present invention and worm gear, worm screw.
The specific embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: shown in Fig. 1-6, deep bid 1 connects by horizontally disposed rotating shaft 3 with the mid-game 2 that is used for being connected with air pressure rod, deep bid 1 is positioned at the top of mid-game 2, 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, knob 4 has cavity, be 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 8 vertical with the installing plate body and right lug 9 respectively corresponding to the position at the two ends of worm screw 7, be formed with second through hole 10 coaxial on a left side lug 8 and the right lug 9 respectively with worm screw 7, left side lug 8, be provided with U-shaped gripper shoe 11 in the space that 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 passes through for handle 14 ends 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.
The installing plates 5 that adjusting bolt 18 passes in deep bid 1, mid-game 2 and the knob 4 from top to bottom successively match with nut 19 screw threads that are embedded in worm gear 6 afterwards, it is coaxial with worm gear 6 to regulate bolt 18, regulate bolt 18 and be arranged with helical spring 20 corresponding to mid-game and installing plate position more than 5 below 2, the two ends up and down of helical spring 20 are formed with flat surface grinding 25 respectively.The position of regulating the close cap portion of bolt is formed with the first anti-rotation projection 26, the first anti-rotation projection, 26 cross sections are quadrilateral structure, form downward sunk structure 21 around the position of passing for adjusting bolt 18 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 is parallel with the axis of regulating bolt 18, correspondingly is 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 mechanism of control air pressure rod lifting and seat support reclining is a routine techniques, does not give unnecessary details at this.By being in transmission connection of handle and worm screw, when turning handle, can drive worm-drive, worm screw then drives worm gear and rotates, 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 and be used for mid-game that is connected with air pressure rod and the deep bid that is connected and is positioned at the mid-game top with mid-game by horizontally disposed rotating shaft, 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, it is characterized in that: the lower front of mid-game is provided with knob, knob has cavity, be provided with in the cavity of described knob and the fixing installing plate of knob, knob is provided with worm gear corresponding to the position of installing plate below, described worm gear can be around self axis with respect to knob, be 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 be connected with described worm-drive, regulate bolt and pass deep bid from top to bottom successively, screw thread matches after the installing plate in mid-game and the knob and between the described worm gear, described 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 described worm screw is provided with coaxial with it inner hexagonal hole, described knob is respectively equipped with first through hole that passes through for handle end corresponding to the position at worm screw two ends, and the end that described 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 described 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 described worm gear coaxial with it nut, described adjusting bolt is by 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 described 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 described 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 described adjusting bolt is formed with the first anti-rotation projection near the position of cap portion, the described first anti-rotation projection cross section is polygonized structure, form downward sunk structure around the position of passing for the adjusting bolt on the deep bid, described 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 described helical spring is corresponding to being arranged with dust cover between mid-game and the knob, the upper bottom portion of described 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 described 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 described 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 described adjusting bolt passes installing plate is formed with at least one anti-rotation planar portions, described anti-rotation planar portions is parallel with the axis of regulating bolt, is formed with on the correspondingly described 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 true CN102090805A (en) | 2011-06-15 |
| CN102090805B 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) |
Cited By (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 |
| 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 |
| CN109832862A (en) * | 2019-03-04 | 2019-06-04 | 佛山市科智美家具有限公司 | A kind of multi-functional adjusting chassis group |
| US10342353B2 (en) | 2017-06-20 | 2019-07-09 | Zhongwei Holding Group Co., Ltd | Chair reclining adjustment mechanism |
Family Cites Families (6)
| 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 |
| 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 |
| CN201542120U (en) * | 2009-12-10 | 2010-08-11 | 陈千奎 | Chair underframe with adjustable inclining force |
-
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
Cited By (6)
| 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 |
| US9788657B2 (en) | 2015-12-09 | 2017-10-17 | Zhongwei Holding Group Co., Ltd | Chair tray and chassis, chassis forming method and chassis mounting structure of the same |
| 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 |
| CN109832862A (en) * | 2019-03-04 | 2019-06-04 | 佛山市科智美家具有限公司 | A kind of multi-functional adjusting chassis group |
| CN109832862B (en) * | 2019-03-04 | 2024-05-24 | 佛山市科智美家具有限公司 | Multifunctional adjusting chassis group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102090805B (en) | 2012-11-07 |
| 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 |