CN1346615A - Seat inclination mechanism and seat provided with said mechanism - Google Patents
Seat inclination mechanism and seat provided with said mechanism Download PDFInfo
- Publication number
- CN1346615A CN1346615A CN01141234A CN01141234A CN1346615A CN 1346615 A CN1346615 A CN 1346615A CN 01141234 A CN01141234 A CN 01141234A CN 01141234 A CN01141234 A CN 01141234A CN 1346615 A CN1346615 A CN 1346615A
- Authority
- CN
- China
- Prior art keywords
- seat
- mentioned
- framework
- tilt adjustment
- pivot
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03288—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with resilient blocks
Abstract
A chair tilt mechanism comprising a mechanism support adapted for connection to the seat of a chair and including first means for connection to a chair base and which are pivoted to said mechanism support, second means for connection to a chair back support pivoted to said first means and resilient biasing means which extend between the pivot between the first and second means and the mechanism support, movement of the mechanism support against the biasing causing relative angular movement between the first and second means and relative angular movement of the mechanism support about the pivot between the first means and the mechanism support.
Description
The present invention relates to seat tilt adjustment, and relate to the seat that this mechanism is housed.Such seat, its seat support and backrest can tilt, and are commonly used for office seats.
BP GB 2,264 862 disclosed this class mechanism, and it adopts a fixed support, chair seat frame, a back rest and a bias mechanism that is used for providing biasing force when tilting that is connected between at least two frameworks that is connected with the said fixing support rotationally by pivot.In this structure, back rest is pivotally connected on the fixed support by pivot, and is connected with chair seat frame by not only rotatable but also transversely movable connector.Above-mentioned connector is placed in the back of the pivot between back rest and the fixed support, then move between the chair seat frame of the pivot front between chair seat frame and the fixed support and fixed support the front of the pivot of the pivotally placed between chair seat frame and the fixed support between back rest and fixed support, bias mechanism.
In this mechanism, the type of bias mechanism is mounted in the compression spring of seat support front, and is provided with retaining mechanism.
The present invention aims to provide the seat tilt mechanism that a kind of manufacturing is easier to and manufacturing cost is lower.And to provide a kind of outward appearance comparatively tempting exquisite structure.
Have one according to seat tilt adjustment of the present invention and be used for the framework that is connected with the seat support of seat, this framework has first mechanism that is used for being connected with the base of seat and can rotates with respect to above-mentioned framework, second mechanism and the fexible bias pressure mechanism between pivot between first and second mechanism and above-mentioned framework that is used for being connected and can rotates with respect to above-mentioned first mechanism with the backrest frame, above-mentioned framework overcomes the mobile relative angular displacement that causes between first and second mechanism of biasing force, and causes the relative angular displacement of framework around the pivot between it and first mechanism.
Therefore, when the people is sitting in that its body weight is added on the bias mechanism on the seat support of seat, this weight just is pressed on the bias mechanism and is easy to make first and second mechanisms that the angle takes place each other to rotate, and the angular displacement of the pivot of generation between first mechanism and framework, thereby make framework change its angle, also make the backrest frame change its relative angle simultaneously with respect to the seat support that tilts with respect to the base of seat.
The first and second above-mentioned mechanisms preferably are made of the arm spare of Wrist joint respectively, and above-mentioned fexible bias pressure mechanism acts on the above-mentioned joint pivot.
Above-mentioned fexible bias pressure mechanism is made of piece shape part or a plurality of such piece shape part of elastomeric material (for example rubber or synthetic polymeric material), does not therefore need the biasing spring with benzene weight in the prior art structure recited above.
Above-mentioned elastic material block shape part (or a plurality of shape parts) preferably makes it deform from original-shape when mounted, prepares to be subjected to when coming into operation prestressing force so when them the location is installed.
Can be provided with in case of necessity framework is locked at locking mechanism in first mechanism.
The invention still further relates to the seat that above-mentioned seat tilt adjustment is housed.
The present invention can be implemented by variety of way, but following by example and an embodiment is described with reference to the accompanying drawings.In the accompanying drawing:
Fig. 1 is the side sectional view according to the seat tilt adjustment of the 1-1 line along Fig. 2 of the present invention;
Fig. 2 is the upper viewing view of Fig. 1 mechanism;
Fig. 3 is the isometric drawing that is used for the keeper of bias mechanism;
Fig. 4 is the isometric drawing as the part of bias mechanism and the elastic material block shape part that is used in combination with keeper shown in Figure 3;
Fig. 5 is the side partial cross-sectional of retaining mechanism;
Fig. 6 uses the side view of office of the present invention with seat;
Fig. 7 is the side view of another kind of structure;
Fig. 8 is the upper viewing view of structure shown in Figure 7;
Fig. 9 is the sectional view along the IX-IX line of Figure 10 of the part of structure shown in Fig. 7 and 8; With
Figure 10 is the upper viewing view of structure shown in Figure 9.
In the structure shown in Fig. 1～6, seat tilt adjustment of the present invention has a flute profile framework 1, and the upper limb of this flute profile framework 1 has the flange 2 of the bottom of the seat support 3 that is used to be fixed to used seat.Be used for they are fixed on the seat support 3 in the hole on the flange 24.First mechanism of prefabricated arm 5 forms is installed in framework 1, and above-mentioned prefabricated arm 5 is bearing on the pivot pin 6 between two sides 7 that separate of extend through flute profile framework 1.The last channel 8 of flute profile shape part 9 is assembled into above-mentioned arm 5 by being positioned at down, and last channel 8 then adopts method such as welding to be fixed on down on the channel 9.A pipe 10 is arranged between above-mentioned two channels 8 and 9, and the size receivability of this pipe 10 has the pillar 11 on the seat base 12 of Caster 13.Last channel 8 has an extension 15 that can engage with pin 16, and also between two sides 7 of extend through framework 1, its effect is to stop the downward angular displacement of framework 1 around pivot pin 6 to above-mentioned pin 16.
As shown in Figure 6, flute profile arm 20 constitutes a kind of second mechanism that is connected on the backrest frame.Above-mentioned arm 20 can in two walls 22 of channel 9, between above-mentioned pivot pin 21 extend throughs two walls 22, and pass hole suitable on the flute profile arm 20 under can packing into during its size design around pivot pin 21 with respect to channel 9 rotations down.
Have on the framework 1 by between the extend through two side 7 and the upper and lower guide member that forms of spaced- apart pin 23,24, so that make flute profile arm 20 longitudinally mobile rotationally between them.
Fexible bias pressure mechanism shown in the label 28 is set in place between the first above-mentioned mechanism and pivot pin 21 and framework 1 between second mechanism, this bias mechanism has one by the elastomeric material piece shape part 29 made of rubber, synthetic polymeric material for example, the shape of these piece shape part 29 lower ends is made and can be engaged with the W shape reinforcement 30 that leans against pivot pin 21, and its upper end is located by a keeper 31 (its shape can be seen clearlyer from Fig. 3) clamping.Above-mentioned keeper 31 comprises a pair of groove part 32 of both sides and the middle body 33 of a dome-shaped, the middle part part 33 of this dome-shaped is pressed on the piece shape part 29, and keeper 31 is blocked by a pair of pin that separates 34 and is positioned on the framework 1, above-mentioned pin 34 is pushed down groove part 32 and is limited keeper 31 and moves up, and plays the effect of compact heap shape part 29 simultaneously.
Fig. 4 illustrates the shape of piece shape part 29 before being installed on the framework 1.Have found that, when piece shape part 29 its shape (as shown in Figure 4) when navigating in the framework 1 is installed under pressure and will be deformed to roughly as shown in Figure 1 shape.
The fexible bias pressure mechanism that is made of piece shape part 29 is placed between pivot pin between first and second mechanism 21 and framework 1 by pin 34.Framework 1 overcomes biasing force mobilely causes respectively first mechanism that is made of flute profile arm 5 and 20 and the relative angular displacement between second mechanism, and causes between first mechanism of flute profile arm 5 formulas and the framework 1 relative angular displacement around pivot pin 6.
Second mechanism of first mechanism of flute profile arm 5 formulas and flute profile arm 20 formulas forms the arm of Wrist joint respectively, and fexible bias pressure mechanism 28 then acts on the pivot 21 of joint.
When using seat, seat person's body weight just acts on the bias mechanism, so the relative angular displacement between two arms of Wrist joint just changes their angles with respect to pipe 10, and changes the angle of seat support 3 with respect to flute profile arm 20 and back rest 25.Simultaneously, flute profile arm 20 rotates around pivot pin 21, arrives the seat person up to each position and feels suitable position.Fig. 6 illustrates the direction of relative movement of seat support and back with arrow.
Seat support overcomes the effect of fexible bias pressure mechanism and tilt to be where necessary by seat person oneself operation.
Fig. 5 illustrates the mechanism that framework can be locked in desired location, and this mechanism has a bearing 38 by a pair of pin 39 supportings between two sidewalls 7 of framework 1, and this bearing 38 is fixed on the appropriate location firmly.Stretch out a threaded mast 40 from bearing 38, this mast 40 passes the hole 41 on the extension 15, enters threaded adjusting knob 42.Mast 40 upper edge axial adjustment knobs 42 just can securing elongated section 15 the position, thereby by the first arm-type mechanism 5 framework is locked on the appropriate location.
When framework is moved freely, can be to the axially variable position that allows framework to move freely with knob 42 turns.
The height that a kind of mechanism regulates seat support strut 11 can be set, and this mechanism can be the adjusting rod 50 of the mechanism of known type bending for example shown in Figure 2.This adjusting rod 50 passes down the hole 51 of channel 9 tops formation and places in the hole 52 of opposite side, can make the pillars 11 in the pipe 10 rise and descend during rotary regulating lever 50.Above-mentioned governor motion is well-known, therefore no longer is described further.
In above-mentioned structure, adopt a solid elastic material block shape part 29 as bias mechanism, still, if be necessary also can adopt two or more shape parts.
In case of necessity, also can for example compress spring with the bias piece of other form and replace above-mentioned elastomer block shape part or a plurality of elastomer block shape part.But, adopt elastic material block shape part of the present invention can make simple in structure and reliable.
Fig. 7,8,9 and 10 illustrates another kind of structure, wherein adopted with Fig. 1～6 in used similar label represent identical parts.But in this structure, prefabricated arm 5 is replaced by prefabricated arm 55.The following channel 9 of this arm 55 is similar to the member among the previous embodiment, but has a last channel 56 perpendicular to following channel 9.Should go up channel 56 is fixed on down on the channel 9 by welding (seeing number in the figure 57).Pipe 10 is arranged between channel 9 and the prefabricated arm 55 in the mode that is similar to the pipe shown in the previous embodiment.
In this structure, the preceding supporting pin 16 between two sidewalls 7 is pipes of riveting tightly in its end.The pin of riveting tightly 34 shown in the previous embodiment is then replaced by a pin 58 with the level.This pin 58 blocks an end of leaf spring type supporting member 31.Therefore, assembling is more convenient.
As can be seen from FIG., do not adopt W shape reinforcement 30 in this structure, the fexible bias pressure mechanism 28 that is formed by elastic material block shape part 29 has the lower surface 59 of the band angle that protrudes in other words that extends out from its main part.So that be bearing on the flute profile arm 20 (see among Fig. 7 shown in the label 60).This just can ftracture at the place, summit that it is positioned on the pivot pin 21 at the long-time block rubber shape part that disperses suffered load after using seat and prevent to constitute fexible bias pressure mechanism 28.
15 of the extensions of going up channel 8 in the cancellation aforementioned structure do not have locking characteristic shown in Figure 5, do not need retaining mechanism in some purposes.
As can be seen.The bottom of channel has its total length of extend through vertically upward base plate 61 (vertical component by label 62 expression) then among the figure, and this base plate seals operating mechanism of the present invention.
Structure shown in Fig. 7,8,9 and 10, except saving retaining mechanism, its method of operating is similar to the described method in Fig. 1～6.
Claims (7)
1. seat tilt adjustment, it has one and is used for the framework that is connected with the seat support of seat, this framework has first mechanism that is used for being connected with the base of seat and can rotates with respect to this framework, second mechanism that is used for being connected with the back rest of seat and can rotates with respect to above-mentioned first mechanism and one are in pivot between above-mentioned first mechanism and second mechanism and the fexible bias pressure mechanism between the above-mentioned framework, above-mentioned framework overcomes the mobile relative angular displacement that causes between above-mentioned first and second mechanism of biasing force, and causes the relative angular displacement of above-mentioned framework around the pivot between it and first mechanism.
2. according to the seat tilt adjustment of claim 1, it is characterized in that the first and second above-mentioned mechanisms are made of the arm spare of Wrist joint respectively, above-mentioned fexible bias pressure mechanism just acts on the pivot of joint.
3. according to the seat tilt adjustment of claim 1 or 2, it is characterized in that above-mentioned fexible bias pressure mechanism is made of piece shape part or several shape parts of elastomeric material.
4. according to the seat tilt adjustment of claim 3, it is characterized in that above-mentioned elastomeric material is rubber or synthetic polymeric material.
5. according to the seat tilt adjustment of claim 3 or 4, it is characterized in that, above-mentioned piece shape part or several shape parts deformed from its original-shape, thus they install the location prepare when coming into operation be subjected to prestressed.
6. each seat tilt adjustment is characterized in that in requiring according to aforesaid right, also has one above-mentioned framework is locked in retaining mechanism in first mechanism.
7. seat that is equipped with according to each seat tilt adjustment in the aforesaid right requirement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0024840.1 | 2000-10-10 | ||
| GBGB0024840.1A GB0024840D0 (en) | 2000-10-10 | 2000-10-10 | Chair tilting mechanism and a chair incorporating such a mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1346615A true CN1346615A (en) | 2002-05-01 |
Family
ID=9901032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01141234A Pending CN1346615A (en) | 2000-10-10 | 2001-10-10 | Seat inclination mechanism and seat provided with said mechanism |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20020041118A1 (en) |
| EP (1) | EP1197167A3 (en) |
| CN (1) | CN1346615A (en) |
| AU (1) | AU7826101A (en) |
| CA (1) | CA2358358A1 (en) |
| GB (1) | GB0024840D0 (en) |
| ZA (1) | ZA200108143B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132719B (en) * | 2005-03-01 | 2012-06-20 | 霍沃思公司 | Tilt control mechanism for a chair |
| CN101548826B (en) * | 2008-04-01 | 2013-02-13 | 德鱼塔工业股份有限公司 | Seat reclining mechanism |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7566099B2 (en) | 2003-10-22 | 2009-07-28 | Lord Corporation | Furniture seatback tilt recline angle limiter and method |
| US6969116B2 (en) * | 2003-12-30 | 2005-11-29 | Hni Technologies Inc. | Chair with backward and forward passive tilt capabilities |
| DE202006018268U1 (en) * | 2006-12-04 | 2007-02-08 | Sato Office Gmbh | Seat for office chair, has connecting device comprising rod units that are attached in pivotable and linearly movable manner at seat plate, where rod units are pivotably connected with bent extension of rear sided connecting lever |
| WO2015161281A1 (en) | 2014-04-17 | 2015-10-22 | Hni Technologies Inc. | Chair and chair control assemblies, systems, and methods |
| US10194750B2 (en) | 2015-04-13 | 2019-02-05 | Steelcase Inc. | Seating arrangement |
| US10966527B2 (en) | 2017-06-09 | 2021-04-06 | Steelcase Inc. | Seating arrangement and method of construction |
| US10021984B2 (en) | 2015-04-13 | 2018-07-17 | Steelcase Inc. | Seating arrangement |
| US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
| WO2020172243A1 (en) | 2019-02-21 | 2020-08-27 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
| US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO159335C (en) * | 1984-05-08 | 1988-12-21 | Haag A S | RELEASABLE VIP MECHANISM FOR CHAIRS OR SIMILAR. |
| GB8825077D0 (en) * | 1988-10-26 | 1988-11-30 | Phr Furniture Ltd | Pedestal chair |
| WO1993017602A1 (en) * | 1992-03-10 | 1993-09-16 | Ashfield Engineering Company (Wexford) Limited | A chair tilting mechanism |
| JP2596820Y2 (en) * | 1993-07-27 | 1999-06-21 | 株式会社内田洋行 | Chair |
-
2000
- 2000-10-10 GB GBGB0024840.1A patent/GB0024840D0/en not_active Ceased
-
2001
- 2001-10-04 CA CA002358358A patent/CA2358358A1/en not_active Abandoned
- 2001-10-04 ZA ZA200108143A patent/ZA200108143B/en unknown
- 2001-10-04 EP EP01308492A patent/EP1197167A3/en not_active Withdrawn
- 2001-10-09 AU AU78261/01A patent/AU7826101A/en not_active Abandoned
- 2001-10-09 US US09/973,452 patent/US20020041118A1/en not_active Abandoned
- 2001-10-10 CN CN01141234A patent/CN1346615A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132719B (en) * | 2005-03-01 | 2012-06-20 | 霍沃思公司 | Tilt control mechanism for a chair |
| CN101548826B (en) * | 2008-04-01 | 2013-02-13 | 德鱼塔工业股份有限公司 | Seat reclining mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| US20020041118A1 (en) | 2002-04-11 |
| EP1197167A2 (en) | 2002-04-17 |
| EP1197167A3 (en) | 2003-07-30 |
| GB0024840D0 (en) | 2000-11-22 |
| AU7826101A (en) | 2002-04-11 |
| ZA200108143B (en) | 2002-06-26 |
| CA2358358A1 (en) | 2002-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |