EP1066775B1 - Stuhl - Google Patents
Stuhl Download PDFInfo
- Publication number
- EP1066775B1 EP1066775B1 EP00113435A EP00113435A EP1066775B1 EP 1066775 B1 EP1066775 B1 EP 1066775B1 EP 00113435 A EP00113435 A EP 00113435A EP 00113435 A EP00113435 A EP 00113435A EP 1066775 B1 EP1066775 B1 EP 1066775B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chair
- seat plate
- spring
- seat
- carrier
- 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.)
- Expired - Lifetime
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Classifications
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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
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
- A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for chairs
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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
- 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
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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
- 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
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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
- 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
-
- 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
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
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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
- 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
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
- A47C1/03274—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs of torsion type
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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
- 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
- A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
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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
- 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
- A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
- A47C1/03279—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs of torsion type
-
- 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
- A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
Definitions
- the present invention relates to a chair with a Seat plate, with a seat support carrying the seat plate, the one with a central chair column or several Chair legs is connected, and with a backrest support, the under the seat plate to the rear and behind the seat plate goes up and carries a backrest, wherein the seat plate near its leading edge around a horizontal transversely extending first pivot axis pivotable on the seat support and offset to the rear by one parallel second pivot axis pivotable on the backrest carrier is hinged, with the backrest support to a between the first and second pivot axes parallel to these extending third pivot axis pivoted to the Seat support is hinged and being below the seat plate provided on this supported compression spring arrangement is that on the seat plate one up and up the backrest has a forward biasing force exercises.
- a chair of the type mentioned is known from DE 43 13 301 C2 known. It is specifically provided that at the bottom the seat plate in the front and rear area pairwise downwardly directed supports rigidly attached are, with the lower ends of the front supports with the lower ends of downwards, pivoting on the seat carrier mounted handlebars and the lower ends the rear supports pivotally connected to the backrest support are and that the compression spring arrangement between the Seat plate and the seat support is arranged.
- This Construction of the chair becomes a so-called synchronous mechanism achieved when loading the rear Part of the seat plate this is lowered back and at the same time the backrest is pivoted backwards is, with the tilt angle of the backrest usually greater than the tilt angle of the seat plate.
- the ratio of the swivel angle to each other is set the cooperating lever lengths.
- a disadvantage is considered in this known chair, that the biasing force of the backrest only from the strength of the compression spring assembly and the construction depending on the chair's leverage, so that in no way an adjustment of the biasing force the backrest to different body weights different users of the chair is possible.
- An influence the biasing force of the backrest would be though by using an adjustable or preloadable Compression spring arrangement possible, but this must be done the user of the chair manually perform the adjustment, which represents an undesirably high expenditure, especially if a chair of different and different heavy users. Besides that is does not ensure that the user is actually the finds appropriate attitude, whereby wrong and possibly even harmful settings can give the biasing force of the backrest.
- the task to create a chair of the kind mentioned above, which avoids the disadvantages presented and in particular an automatic adjustment of the preload force the backrest to different heavy users of the chair is reached.
- Characteristics of the chair is achieved that the seat plate in use by a heavier User is moved down, which inevitably too a tension of the compression spring assembly leads. That I the compression spring assembly on the backrest extension supports, the compression spring assembly exerts on the backrest carrier a lever moment, resulting in an increase the biasing force of the backrest leads. A chair user with a higher body weight so learn increased support for his back through the Backrest as desired and ergonomically sensible is.
- the seat plate takes an overhead one Position a, in which the compression spring arrangement less strong is tense; accordingly, inevitably arises a lower biasing force of the backrest, so that a lightweight user according to his lower body weight also a reasonably lower Supporting force through the backrest at his Experiences back.
- the synchronous adjustment remains seat plate and backrest in full so that even with changes in the seating position the seat plate and the backrest in a fixed Be pivoted relative to each other.
- the chair is of a surprisingly simple Construction, so that the production of the chair is relatively easy and inexpensive.
- the second Swivel axis near the longitudinal center of the seat plate below this runs is preferably provided.
- the required for the chair movements Mechanics can be so under the front half of the Seatpan be concentrated, which is the production of the Chair simplified and what a pleasing appearance of the chair and in particular its under the Seat plate arranged movement mechanics yields.
- the seat plate on the underside at least each has a front and rear bearing support, through the first, front and the second, rear Swivel axis runs.
- these bearing supports get the first and the second pivot axis a desired Distance from the seat plate.
- the bearing supports each have a slot, through each one firmly connected to the seat support first, front and second, rear bearing pin extends, with the slots on a radius around the respectively not associated run other bearing pin.
- the long holes is a pivoting of the seat plate both around the front, first pivot axis and around the rear, second pivot axis possible without jamming, so that the seat plate different sitting postures of the chair user can adjust without compulsion.
- An embodiment of the chair preferably as an office swivel chair is usable, provides that the seat carrier in Longitudinal direction of the seat plate extending in the transverse center arranged below this and at its rear end connected to the chair column is that left and right from the seat support symmetrical to this ever a backrest support each provided with an associated compression spring arrangement is that each two front and rear bearing supports available and that are each a trailing front and back Bearing pin is attached to the seat support.
- An alternative version of the chair that special is suitable as a conference or conference chair is characterized in that the seat support in two parts executed and running in the longitudinal direction of the seat plate arranged laterally left and right below this and at its front and rear ends with one each Chair leg is connected, that left and right inside of the two seat support parts parallel to each one Backrest carrier, each with an associated compression spring arrangement is provided that each two front and rear bearing supports are present and that ever a continuous front and rear bearing pin on the two seat support parts is appropriate.
- the mentioned compression spring arrangement is advantageously a Coil spring arrangement, because coil springs little installation space require and because they are a common and appropriate easily procurable in various designs Component is.
- a coil spring arrangement may alternatively Compression spring arrangement, for example, a gas spring arrangement or an elastomer spring assembly.
- Druchfederan formed by a leg spring arrangement.
- the chair is provided that the / each the leg spring assembly forming thigh feather one or several turns, the third pivot axis surrounding spring body and two tangentially from this comprises outwardly extending spring legs, wherein a first spring leg near its free end at the Bottom of the seat plate and a second spring leg is supported on the backrest support and wherein the spring legs so biased that they are on the seat plate an upward force and on the backrest support exercise a biasing the backrest forward force.
- the height of the spring assembly only from the outer diameter of the spring body is determined because the leg spring a Spring body has, whose longitudinal axis in the horizontal direction runs transversely under the seat plate.
- the spring characteristic to adjust the leg spring as desired in a wide range, wherein changes in the spring characteristic by modifications of the spring strength and / or the number of turns and / or the winding diameter and the length the spring leg is possible.
- One advantage is finally also in that thigh springs simple and common spring elements are that are inexpensive and the manufacturing cost of the chair as a whole is low hold.
- This orientation of the spring legs results in a particularly space-saving arrangement, so that the spring arrangement below the seat plate only one low height needed. This is especially for the visual appearance of the chair in its side view advantageous.
- At least the first spring leg in one with the Seat plate connected sliding or rolling guide is.
- the chair is the compression spring assembly formed by a torsion bar assembly.
- the chair is provided that the / each of the torsion bar assembly forming torsion bar with at least one on torsion, in chair transverse direction extending spring section and with at least two in Chair longitudinal direction extending spring levers formed is, with a first spring lever near its free end at the bottom of the seat plate and a second spring lever is supported on the backrest support and wherein the Spring lever are biased so that they are on the seat plate an upward force and on the backrest support a force biasing the backrest forward exercise.
- the spring lever from the spring section seen from in bottom view of the chair about seen parallel to each other and in side view of the chair including an acute angle to the rear run, with the second spring lever on the top the extension of the backrest support is supported and on the extension a downward force exercises.
- the torsion bar also needs this in the horizontal direction the chair in the longitudinal direction only relatively little installation space, so that also in this regard Contribution to a compact design is delivered.
- the torsion spring is preferably in one piece by a U-shaped bent spring steel bar formed.
- Torsion bar is particularly simple and inexpensive producible and requires only a small amount of material, what with to a desired low total weight contributes to the chair.
- the invention provides that the seat support and at least the running below the seat plate part the backrest support and possibly the bearing supports Stamped and pressed parts are made of sheet steel. Punching and Pressed parts made of sheet steel are particularly inexpensive in large quantities as mass parts manufacturable, where they at the same time have a high stability and durability. This is a high and permanent quality the chair at low cost and at ensures low wear.
- the chair preferably has a combination of synchronous mechanism and weight-dependent backrest preload.
- the chair can alternatively Be executed that the articulation of the seat plate to the Backrest support is omitted, causing the seat plate and the backrest unsynchronized, so independent of each other are pivotable.
- the necessary technical Changes are limited to the advantageous Omission of items.
- the illustrated in Figure 1 as the first embodiment Office swivel chair 1 has as essential parts one Seat plate 2, a seat support 3, a backrest support 4 with a backrest 4 'and a central chair column 5 with a base 50 at its lower end.
- the seat plate 2 is a stable plate in itself on the upper side with a pad, not shown here can be provided.
- the seat plate 2 On the underside, the seat plate 2 with two front bearing supports 21 and two rear bearing supports 22 connected.
- the bearing supports 21, 22 of each pair of supports are in the side view shown in Figure 1 arranged one behind the other, so that only one the bearing supports 21, 22 is visible.
- the front bearing supports 21 are arranged near the front edge of the seat plate 2 and each have a slot 21 ', through which a first bearing pin 31 horizontally and transversely runs. This first bearing pin 31 is fixed to the Seat support 3 connected, in turn, by means of a Chair column seat 30 fixed to the upper end of the central Chair column 5 is connected.
- the rear, second bearing supports 22 also have each a slot 22 ', through which a second bearing pin 32 runs.
- This second bearing pin 32 is firmly connected to the seat support 3 and runs parallel to the first bearing pin 31.
- the slot 22 'in the second bearing supports 22 extends on a radius around the first front bearing pin 31; the slot 21 ' in the front bearing supports 21 extends on a radius around the second bearing pin 32. In this way is a Movement of the seat plate 2 in the vertical direction relative to the seat support 3 possible, this vertical movement both approximately straight down as well as in shape of pivoting around the first, front bearing pin 31 or take place around the second, rear bearing pin 32 can.
- the backrest 4 'supporting backrest support 4 is at the illustrated embodiment by two back support members 40, 40 'formed.
- the backrest support part 40 runs below the seat plate 2; at its rear End of this is the second back support member 40 'in Form of a connector connected, which is a height adjustment the second back support member 40 'and the thereto fastened backrest 4 'allows.
- the running under the seat plate 2 first backrest support part 40 is by means of a bore 43 and a bearing pin 33, which is also firmly connected to the seat support 3 is, pivotally mounted. Further points the first back support member 40 a over the bearing pin 33, which is parallel to the two other bearing pin 31 and 32 runs forward extension 41 on.
- the chair 1 still comprises a compression spring arrangement, here formed by two helical compression springs 6 is.
- the springs 6 are in the side view one behind the other arranged so that only one spring 6 in Figure 1 is visible.
- With its upper end is the helical compression spring 6 supported on the underside of the seat plate 2 in an area between the front ones Bearing supports 21 and the rear bearing supports 22.
- With its lower end is the helical compression spring 6 at the forward facing extension 41 of the first backrest support part 40 supported, causing the helical compression spring on the one hand on the seat plate 2 an upward Vorbelastungskraft and on the other hand on the first and the second back support member 40, 40 'on the Backrest 4 'is a forward biasing force exercises.
- the chair 1 is in a discharged state shown in which on the seat plate 2 and on the backrest 4 'no forces by a user of the Chair 1 are exercised.
- the pivoting position of Backrest support 4 is in this position by a stop limited by a slot 42 in the first back support member 40 is formed. Through this slot 42 extends the second bearing pin 32, in which case the bearing pin 32 abuts the lower end of the slot 32.
- the chair 1 If the chair 1 is loaded by a user, moves the seat plate 2 - depending on the body weight of the user - more or less far down. Under pressure the seat plate 2 by a heavier user becomes the spring assembly 6 compressed and receives more thus a higher voltage. As a result, the spring arrangement exercises 6 a greater force on the extension 41 of first back support member 40, which is about leverage inevitably leads to the backrest 4 'a receives higher preload force forward, so the User back supported with a higher force. at a more lightweight user of the chair 1 is the Seat plate 2 pressed down correspondingly less, whereby the spring assembly 6 is tensioned less and which then also the backrest 4 'a smaller Preload experienced. The preload force or Supporting the backrest thus adapts automatically different heavy users.
- the chair 1 provides a synchronous mechanism, the it allows the position of seat plate 2 and backrest 4 'coupled with each other to change. If a user on the chair 1 leaning backwards, the Seat plate 2 lowered back, while the Backrest 4 'on the occurring lever effects is pivoted to the rear.
- the Backrest 4 ' about a horizontal transverse axis pivotally mounted on the second back support member 40 ' what a further improved adaptation of the Backrest 4 'to different users of the chair 1 allows.
- the chair column 5 is also known and conventional construction and is preferably height adjustable and sprung, so that in total the chair 1 various customization options for different User provides, adjusting the preload the backrest 4 'advantageous automatically depending of the body weight of the user of the chair 1 he follows.
- FIG. 2 of the drawing of the chair 1 of Figure 1 illustrates the symmetrical Arrangement of the mechanics of the chair 1 on both sides of the Longitudinal axis 10 of the chair.
- the Seat support 3 which at its rear, in Figure 2 right End the chair column receptacle 30 for connection to the here not visible chair column 5 has.
- Cross to Seat support 3 are at this the three bearing pins 31, 32, 33 attached, which are parallel to each other in the transverse direction of the chair 1 under the seat plate 2 extend.
- the Ends of the bearing pins 31 and 32 are in the front and rear bearing supports 21, 22 and run through the provided therein, described in Figure 1 slots 21 ', 22'.
- Figure 2 shows that the first backrest support part 40 two-part design with two parallel, parallel to the longitudinal central axis 10 extending sections.
- the two sections of the first backrest part 40 are pivotally mounted on the third bearing pin 33; before the third bearing pin, i. in Figure 2 left of which are the extensions 41 of the two sections of the first backrest part 40.
- the two helical compression springs 6 are based with her lower end facing here to the viewer is. With her facing away from the viewer upper End, the helical compression springs 6 are based on the Viewer facing bottom of the seat plate 2 from.
- Figure 2 illustrates the very compact design the mechanics of the chair 1, resulting in a simple Manufacturability and a compact design result.
- the different, for the movements of seat plate 2 and backrest support 4 with the backrest 4 'required Swivel axes 71, 72, 73 are through the bearing pins 31, 32, 33 formed, this construction both stable as well as low-closing.
- FIG. 3 of the drawing shows a second exemplary embodiment a conference or meeting chair 1, the instead of the central chair column now four chair legs 5 ' wherein, in the side view shown in Figure 3 in each case only the chair leg facing the viewer is recognizable.
- This embodiment of the chair 1 includes a in itself stable seat plate 2 with a pad 20, wherein at the Bottom of the seat plate 2 here again the front and the rear bearing supports 21, 22 with their slots 21 ', 22' are present.
- the chair legs 5 ' are rigidly connected to each other via the seat carrier 3. Also here again the three bearing pins 31, 32, 33 are present, in turn, firmly connected to the seat support 3 are.
- the backrest support 4 is executed here continuously and carries on its upper part 40 'again the backrest 4 '.
- the lying under the seat plate 2 part 40 of the backrest support 4 is pivotable about the bearing pin 33 on Seat support 3 stored. Again, the second, rear runs Bearing pin 32 through a slot 42 in the back support member 40 to limit the Verschwenkungsweg.
- the backrest support 4 here also has an extension 41 on, which runs over the pivot axis 33 to the front.
- the compression spring assembly is supported 6 with its lower end, the upper End also here on the underside of the seat plate 2 rests.
- the chair 1 behaves according to Figure 3 as the chair 1 according to Figures 1 and 2; also Here, therefore, an automatic adjustment of the preload force the backrest 4 'to the body weight the user of the chair 1.
- the synchronous mechanism to the coupled Pivoting of seat plate 2 and backrest support 4 guaranteed with backrest 4 '.
- a total height adjustment, as seen through the chair column 5 in the chair 1 is possible according to Figure 1, the chair 1 according to FIG. 3 not.
- a separate height adjustment of Backrest 4 ' is not in the chair 1 according to Figure 3 intended.
- the individual parts of the chair 1 simplified according to Figure 3, the chair 1 in made this embodiment particularly inexpensive become.
- the chair 1 offers the user a high Comfort through the synchronous mechanism and through the automatic Adjustment of the biasing force of the backrest 4 'depending on the body weight of the user.
- the entire mechanics of the chair 1 according to Figure 3 below the seat plate 2 very compact
- This chair can also be 1, as conventional known for rigid chairs, for storage and transport purposes be stacked, resulting in a very space-saving Arrangement results.
- FIG. 4 The illustrated in Figure 4 as a third embodiment Chair 1 is designed as an office swivel chair and has as essential parts a seat plate 2, a Seat support 3, a backrest support 4 for one not here represented, arranged further back, a central chair column 5 with a likewise not shown here Base at its lower end and a spring arrangement 6 between seat plate 2 and backrest support 4.
- the seat plate 2 is a stable plate in itself on the upper side with a pad, not shown here can be provided.
- the seat plate 2 On the underside, the seat plate 2 with a support member 23 each having a left and right downwardly facing cheek 23 'connected. Near the in the drawing left front edge of the seat plate 2 have the cheeks 23 'of the support member 23 respectively a slot 21 ', through which a first bearing pin 31 horizontally and transversely.
- This first bearing pin 31 is firmly connected to the seat support 3, which in turn by means of a central under the seat plate. 2 lying Guatemalaklalay 30 firmly with the upper end the central chair column 5 is connected.
- this second one Bearing pin 32 is firmly connected to the seat support 3 and runs parallel to the first bearing pin 31 by about one Bolts thickness offset down. It runs in each case the slot 22 'on a radius around the first bearing pin 31 substantially in the vertical direction and the Slot 21 'on a radius around the second bearing pin 32. In this way, a movement of the seat plate 2 in the vertical direction relative to the seat carrier 3 possible, this vertical movement being both approximately straight vertically as well as in the form of pivoting around the first, front bearing pin 31 or around the second, rear Bearing pin 32 can be done.
- the backrest support 4 is in the illustrated embodiment formed by two backrest parts 40, 40 '.
- the back support member 40 extends below the seat plate 2; at its rear end is this with the second Back support member 40 'connected by means of a plug connection, an adjustment of the second backrest support part 40 'allows with the attached backrest.
- the running under the seat plate 2 first backrest support part 40 is by means of a third bearing pin 33, which is also firmly connected to the seat support 3, pivotally mounted on the seat support 3.
- the first back support part 40 has one over the bearing bolt 33, which is parallel to the two other bearing pins 31, 32 extends forwardly extending extension 41.
- the support member 23 and the back support member 40 via a driver 24 in the form of a short Levers hinged together to synchronize the pivoting of seat plate 2 and backrest to effect.
- the chair 1 still includes the spring assembly 6, which is formed here by two leg springs 60.
- the torsion springs 60 are in the side view one behind the other arranged so that only the one spring 60 in FIG 4 is visible.
- the leg spring 60 has a coiled Spring body 61, which is about the third pivot axis 73 forming bearing pin 33 runs around and on this concentrically by means of an unnumbered holder is held. From the spring body 61 run tangentially one upper spring leg 62 and one lower one Spring leg 64 approximately parallel to each other forward. Near its free end is the first upper spring leg 62 of the leg spring 60 at the bottom of the seat plate 2 supported and in a range between the bearing pin 31 and 33.
- a pressure piece 63 as part of the support member 23 provided at the bottom of the Seat plate 2 is attached.
- the pressure piece 63 are the Spring leg 62 on.
- lower spring leg 64 is the leg spring 60 at the front pointing extension 41 of the first backrest support part 40 supported, whereby the leg spring 60 on the one hand on the seat plate 2 an upward biasing force and on the other hand about the first and the second back support member 40, 40 'on the backrest a exerts forward biasing force.
- the chair 1 is in a relieved state shown in which on the seat plate 2 and on the backrest and its back support members 40, 40 'no Forces are exercised by a user of the chair 1.
- the Verschwenkungswolf of the backrest support 4 is limited in this position by a stop, the formed by the slot 42 in the first back support member 40 is. Through this slot 42, the second runs Bearing pin 32, in which case the bearing pin 32 at the bottom End of the slot 42 is present.
- the chair 1 If the chair 1 is loaded by a user, moves the seat plate 2, depending on the body weight of the user, more or less far down. Under pressure the seat plate 2 by a heavier user the spring legs 62, 64 of the leg springs 60 stronger compressed and the torsion springs 60 obtained by a higher voltage. As a result, the springs 60 exercise also a greater force on the extension 41 of the first Lehnenitatiteils 40 off, what about the leverage inevitably leads to the fact that the backrest is higher Vorbelastungskraft receives forward, so the user back supported with a higher force. At a the lighter-weight user of the chair 1 becomes the seat plate 2 correspondingly less pressed down, causing Also, the springs 60 are less strained and which then also the backrest a lower biasing force experiences. The preload or support force The backrest thus adapts automatically to different heavy users.
- the chair 1 provides a synchronous mechanism, the ensures that when using the chair 1 the Positions of seat plate 2 and backrest 4 'coupled change each other.
- the seat plate 2 is back more heavily loaded and lowered there, while at the same time by means of the driver 24, the backrest over the case occurring lever effects in a fixed swing angle ratio is pivoted to the rear.
- the synchronous mechanism not desired, this can be easy be eliminated by omitting the driver 24.
- the Backrest around a horizontally transverse axis pivotally mounted on the second back support member 40 ' what a further improved adaptation of the Backrest to different users of the chair 1 allows.
- the chair column 5 is also known and usual construction and is preferably height adjustable as well as sprung, so that overall the chair 1 varied Customization options for different users offers.
- the adjustment of the preload force of Backrest is advantageously carried out automatically depending the body weight of the user of the chair 1, so that manual adjustments are not necessary.
- FIG. 5 of the drawing of the chair 1 of Figure 4 illustrates the symmetrical Arrangement of the mechanics of the chair 1 on both sides of the Longitudinal axis 10 of the chair.
- the Seat support 3 In the middle is the Seat support 3, the right at his back, in Figure 5 End the chair column receptacle 30 for connection to the here not visible chair column 5 has.
- Cross to Seat support 3 are at this the three bearing pins 31, 32, 33 attached, which are parallel to each other in the transverse direction of the chair 1 run under the seat plate 2, the not shown here.
- the ends of the bearing pin 31 and 32 lie in the two lateral cheeks 23 'of the Support member 23 and run through the therein provided Longitudinal holes 21 ', 22' described in FIG.
- Figure 5 shows that the first backrest support part 40 in one piece as a flat strip with two parallel, parallel to the longitudinal central axis 10 extending lateral Bends is executed.
- the first backrest part 40 is pivotable on the third bearing pin 33 stored; before the third bearing pin, i. in figure 5 to the left, is the extension 41 of the first backrest support part 40.
- Support this extension 41 the two torsion springs 60 with their spring legs 64 off.
- With their spring legs 62 are based Leg springs 60 on the underside facing the viewer the background, not drawn here Seat plate 2 off.
- second back support member 40 ' with the backrest by inserting it with the first backrest support 40 can be connected.
- Figure 5 illustrates the very compact design the mechanics of the chair 1, resulting in a simple Manufacturability and a "light" appearance of the chair 1 result.
- the three for the movements of seat plate 2 and backrest support 4 with the backrest required pivot axes 71, 72, 73 are determined by the Bearing pins 31, 32, 33 formed, this construction both stable and wear-resistant.
- Figures 6 and 7 of the drawing show a fourth embodiment another office swivel chair 1, the also has a central chair column 5, wherein in the partial side view shown in Figure 6 only the upper end of the chair column is recognizable, that with the center under the seat plate 2 lying end of the seat support 3 is connected.
- This embodiment of the chair 1 includes a in itself stable seat plate 2, wherein at the bottom of each separated from each other front bearing supports 21, each with one vertical slot 21 'and rear bearing supports 22nd available.
- a in itself stable seat plate 2 wherein at the bottom of each separated from each other front bearing supports 21, each with one vertical slot 21 'and rear bearing supports 22nd available.
- the first embodiment but here are only two bearing pins 32, 33 available, of which the bolt 33 fixed to the seat support. 3 is connected while the bolt 32 in the bearing supports 22 is set.
- the backrest support 4 is also made in two parts here and carries at its upper part 40 'the not shown Backrest.
- the lying under the seat plate 2 part 40 of the backrest support 4 is by means of the bearing pin 33rd about the pivot axis 73 pivotally mounted on the seat support 3. Again, runs the second, rear bearing pin 32 through a slot 42 in the back support member 40, wherein here the slot 42 in the longitudinal direction of the backrest support part 40 passes through this, to its compulsory pivoting to enable.
- the backrest support 4 also has one here with the backrest support part 40 one-piece extension 41 on which over the pivot axis 73 extends forward.
- a torsion bar spring 60 ' is installed.
- This spring 60 ' has two torsionally stressed Spring portions 61 'in the chair transverse direction through the Slots 21 'run and at the same time as the first pivot axis 71 serve.
- Left and right outside extends one spring lever 62 'from the spring portion 61' to the rear and is in each case a stop 26, each on the underside is attached to the seat plate 2.
- the spring 60 'shown here is as symmetrical double spring executed and is one piece made of a correspondingly bent spring steel rod.
- the torsion spring 60 ' is biased so that their Spring lever 62 ', 64' on the seat plate 2 the desired upward force and extension 41 exert the desired downward force, as indicated by the arrows on the spring levers 62 ', 64' is.
- the chair 1 behaves according to Figures 6 and 7 as the chair 1 according to Figure 4 and 5; Here, too, is an automatic adjustment the biasing force of the backrest on the body weight the user of the chair 1. Also is at the chair 1 according to Figures 6 and 7, the synchronous mechanism for coupled pivoting of seat plate 2 and Backrest support 4 guaranteed with backrest.
Description
- Figur 1
- einen Stuhl in einer ersten Ausführung als Bürodrehstuhl, in Seitenansicht,
- Figur 2
- den Stuhl aus Figur 1 in einer Unteransicht,
- Figur 3
- den Stuhl in einer zweiten Ausführung als Konferenzstuhl, ebenfalls in Seitenansicht.
- Figur 4
- den Stuhl in einer dritten Ausführung in einer Teil-Seitenansicht, teils im Vertikalschnitt,
- Figur 5
- den Stuhl aus Figur 4 in Unteransicht,
- Figur 6
- den Stuhl in einer vierten Ausführung in einer Teil-Seitenansicht und
- Figur 7
- den Stuhl aus Figur 6 in Unteransicht.
Claims (23)
- Stuhl (1) mit einer Sitzplatte (2), mit einem die Sitzplatte (2) tragenden Sitzträger (3), der mit einer zentralen Stuhlsäule (5) oder mehreren Stuhlbeinen (5') verbunden ist, und mit einem Lehnenträger (4), der unter der Sitzplatte (2) nach hinten und hinter der Sitzplatte (2) nach oben verläuft und eine Rückenlehne (4') trägt, wobei die Sitzplatte (2) nahe ihrer Vorderkante um eine horizontal quer verlaufende erste Schwenkachse (71) verschwenkbar an dem Sitzträger (3) und davon nach hinten versetzt um eine parallele zweite Schwenkachse (72) verschwenkbar an dem Lehnenträger (4) angelenkt ist, wobei der Lehnenträger (4) um eine zwischen erster und zweiter Schwenkachse (71, 72) parallel zu diesen verlaufende dritte Schwenkachse (73) verschwenkbar an dem Sitzträger (3) angelenkt ist und wobei unter der Sitzplatte (2) eine an dieser abgestützte Druckfederanordnung (6) vorgesehen ist, die auf die Sitzplatte (2) eine nach oben und auf die Rückenlehne (4') eine nach vorne wirkende Vorbelastungskraft ausübt, wobei der Lehnenträger (4) eine über die dritte Schwenkachse (73) hinaus nach vorne weisende, einen Hebelarm bildende Verlängerung (41) aufweist und wobei die Druckfederanordnung (6) sich mit ihrem sitzplattenfernen Ende auf der Lehnenträger-Verlängerung (41) abstützt,
dadurch gekennzeichnet, daß die Sitzplatte (2) neben ihrer Schwenkbeweglichkeit zusätzlich gegenüber dem Sitzträger (3) und/oder dem Lehnenträger (4) ein vertikales Bewegungsspiel aufweist und daß die Sitzplatte (2) je nach Körpergewicht eines Benutzers des Stuhls (1) mehr oder weniger weit nach unten bewegbar ist und dadurch die Federanordnung (6) mehr oder weniger stark anspannbar ist. - Stuhl nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Schwenkachse (72) nahe der Längsmitte der Sitzplatte (2) unter dieser verläuft.
- Stuhl nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Sitzplatte (2) unterseitig mindestens je eine vordere und hintere Lagerstütze (21, 22) aufweist, durch die die erste, vordere und die zweite, hintere Schwenkachse (71, 72) verläuft.
- Stuhl nach Anspruch 3, dadurch gekennzeichnet, daß die Lagerstützen (21, 22) je ein Langloch (21', 22') aufweisen, durch das jeweils ein fest mit dem Sitzträger (3) verbundener erster, vorderer und zweiter, hinterer Lagerbolzen (31, 32) verläuft, wobei die Langlöcher (21', 22') auf einem Radius um den jeweils nicht zugehörigen anderen Lagerbolzen (32, 31) verlaufen.
- Stuhl nach Anspruch 4, dadurch gekennzeichnet, daß zur Bildung eines Lehnenträger-Bewegungsanschlages der zweite, hintere Lagerbolzen (32) auch durch ein im wesentlichen vertikal ausgerichtetes Langloch (42) im Lehnenträger (4) verläuft.
- Stuhl nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß der Sitzträger (3) in Längsrichtung der Sitzplatte (2) verlaufend in deren Quermitte unter dieser angeordnet und an seinem hinteren Ende mit der Stuhlsäule (5) verbunden ist, daß links und rechts vom Sitzträger (3) symmetrisch zu diesem je ein Lehnenträger (4) mit je einer zugehörigen Druckfederanordnung (6) vorgesehen ist, daß je zwei vordere und hintere Lagerstützen (21, 22) vorhanden sind und daß je ein durchlaufender vorderer und hinterer Lagerbolzen (31, 32) am Sitzträger (3) angebracht ist.
- Stuhl nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß der Sitzträger (3) zweiteilig ausgeführt und in Längsrichtung der Sitzplatte (2) verlaufend seitlich links und rechts unter dieser angeordnet sowie an seinen vorderen und hinteren Enden mit je einem Stuhlbein (5') verbunden ist, daß links und rechts innen von den beiden Sitzträgerteilen (3) parallel zu diesen je ein Lehnenträger (4) mit je einer zugehörigen Druckfederanordnung (6) vorgesehen ist, daß je zwei vordere und hintere Lagerstützen (21, 22) vorhanden sind und daß je ein durchlaufender vorderer und hinterer Lagerbolzen (31, 32) an den beiden Sitzträgerteilen (3) angebracht ist.
- Stuhl nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Druckfederanordnung (6) eine Schraubenfederanordnung ist.
- Stuhl nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Druckfederanordnung (6) eine Gasdruckfederanordnung oder eine Elastomerfederanordnung ist.
- Stuhl nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Druckfederanordnung (6) eine Schenkelfederanordnung ist.
- Stuhl nach Anspruch 10, dadurch gekennzeichnet, daß die/jede die Schenkelfederanordnung bildende Schenkelfeder (60) einen eine oder mehrere Windungen umfassenden, die dritte Schwenkachse (73) umgebenden Federkörper (61) sowie zwei sich von diesem tangential nach außen erstreckende Federschenkel (62, 64) umfaßt, wobei ein erster Federschenkel (62) nahe seinem freien Ende an der Unterseite der Sitzplatte (2) und ein zweiter Federschenkel (64) an dem Lehnenträger (4) abgestützt ist und wobei die Federschenkel (62, 64) so vorgespannt sind, daß sie auf die Sitzplatte (2) eine nach oben gerichtete Kraft und auf den Lehnenträger (4) eine die Rückenlehne (4') nach vorne vorbelastende Kraft ausüben.
- Stuhl nach Anspruch 11, dadurch gekennzeichnet, daß beide Federschenkel (62, 64) vom Federkörper (61) weg etwa parallel zueinander nach vorne verlaufen, wobei der zweite Federschenkel (64) an der Oberseite der Verlängerung (41) des Lehnenträgers (4) abgestützt ist und auf die Verlängerung (41) eine nach unten gerichtete Kraft ausübt.
- Stuhl nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß zumindest der erste Federschenkel (62) in einer mit der Sitzplatte (2) verbundenen Gleit- oder Rollführung (63) liegt.
- Stuhl nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, daß symmetrisch zur Längsmittelachse des Stuhls (1) zwei Schenkelfedern (60) vorgesehen sind, die vorzugsweise einstückig miteinander durch einen einzigen, entsprechend zweifach gewendelten und gebogenen Federstahldraht oder -stab gebildet sind.
- Stuhl (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Druckfederanordnung (6) durch eine Drehstabfederanordnung gebildet ist.
- Stuhl nach Anspruch 15, dadurch gekennzeichnet, daß die/jede die Drehstabfederanordnung bildende Drehstabfeder (60') mit mindestens einem auf Torsion beanspruchten, in Stuhlquerrichtung verlaufenden Federabschnitt (61') und mit mindestens zwei in Stuhllängsrichtung verlaufenden Federhebeln (62', 64') gebildet ist, wobei ein erster Federhebel (62') nahe seinem freien Ende an der Unterseite der Sitzplatte (2) und ein zweiter Federhebel (64') an dem Lehnenträger (4) abgestützt ist und wobei die Federhebel (62', 64') so vorgespannt sind, daß sie auf die Sitzplatte (2) eine nach oben gerichtete Kraft und auf den Lehnenträger (4) eine die Rückenlehne (4') nach vorne vorbelastende Kraft ausüben.
- Stuhl nach Anspruch 16, dadurch gekennzeichnet, daß der Federabschnitt (61') der Drehstabfeder (60') zugleich die erste Schwenkachse (71) bildet.
- Stuhl nach Anspruch 16 oder 17, dadurch gekennzeichnet, daß die Federhebel (62', 64') von dem Federabschnitt (61') aus in Unteransicht des Stuhls (1) gesehen etwa parallel zueinander und in Seitenansicht des Stuhls (1) gesehen unter Einschluß eines spitzen Winkels nach hinten verlaufen, wobei der zweite Federhebel (64') an der Oberseite der Verlängerung (41) des Lehnenträgers (4) abgestützt ist und auf die Verlängerung (41) eine nach unten gerichtete Kraft ausübt.
- Stuhl nach Anspruch 16, 17 oder 18, dadurch gekennzeichnet, daß die Drehstabfeder (60') einstückig durch einen U-förmig gebogenen Federstahlstab gebildet ist.
- Stuhl nach einem der Ansprüche 16 bis 19, dadurch gekennzeichnet, daß symmetrisch zur Längsmittelachse des Stuhls (1) zwei Drehstabfedern (60') vorgesehen sind, die vorzugsweise einstückig miteinander durch einen einzigen, kurbelwellenartig gebogenen Federstahlstab gebildet sind.
- Stuhl nach einem der vorhergehenden Ansprüche, wobei die Sitzplatte (2) unterseitig Lagerstützen aufweist, durch die die erste, vordere und die zweite, hintere Schwenkachse (71, 72) verlaufen, dadurch gekennzeichnet, daß jeweils zwei linke und zwei rechte Lagerstützen vorhanden sind, die jeweils zu einem linken und einem rechten Stützenbauteil oder zu einem einzigen Stützenbauteil (23) zusammengefaßt und einstückig ausgeführt sind.
- Stuhl nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Sitzträger (3) und zumindest der unterhalb der Sitzplatte (2) verlaufende Teil (40) des Lehnenträgers (4) sowie gegebenenfalls die Lagerstützen (21, 22) Stanz- und Preßteile aus Stahlblech sind.
- Stuhl nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Anlenkung der Sitzplatte (2) an dem Lehnenträger (4) weggelassen ist und daß die Sitzplatte (2) und der Lehnenträger (4) unsynchronisiert unabhängig voneinander verschwenkbar sind.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19931099A DE19931099C2 (de) | 1999-07-06 | 1999-07-06 | Stuhl mit selbständiger Anpassung der Vorbelastungskraft der Rückenlehne |
DE19931099 | 1999-07-06 | ||
DE10026292A DE10026292C2 (de) | 1999-07-06 | 2000-05-26 | Stuhl |
DE10026292 | 2000-05-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1066775A1 EP1066775A1 (de) | 2001-01-10 |
EP1066775B1 true EP1066775B1 (de) | 2004-04-21 |
Family
ID=26005853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00113435A Expired - Lifetime EP1066775B1 (de) | 1999-07-06 | 2000-06-24 | Stuhl |
Country Status (5)
Country | Link |
---|---|
US (1) | US6523896B1 (de) |
EP (1) | EP1066775B1 (de) |
AT (1) | ATE264636T1 (de) |
CA (1) | CA2313565C (de) |
DE (2) | DE10026292C2 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10026531C2 (de) * | 2000-05-27 | 2002-06-13 | Roeder Peter | Stuhl |
DE10109624C1 (de) * | 2001-02-28 | 2002-09-12 | Interstuhl Bueromoebel Gmbh | Stuhl, insbesondere Bürostuhl |
DE10122948C1 (de) | 2001-05-11 | 2003-03-13 | Armin Sander | Stuhl, insbesondere Bürostuhl |
DE10126001A1 (de) * | 2001-05-18 | 2002-11-21 | Bock 1 Gmbh & Co | Vorgespannte Federanordnung, insbesondere zur Federbeaufschlagung von Synchronmechaniken von Bürostühlen |
JP4137536B2 (ja) * | 2002-07-03 | 2008-08-20 | コクヨ株式会社 | 椅子 |
EP1527714B1 (de) * | 2002-07-23 | 2008-11-26 | Okamura corporation | Stuhl |
US6896328B2 (en) * | 2002-12-18 | 2005-05-24 | Hon Technology Inc. | Steel wire chair with springs |
DE10318759B3 (de) * | 2003-04-25 | 2004-07-29 | Armin Sander | Stuhl, insbesondere Bürostuhl, und modulares Stuhlkonzept |
US7147285B2 (en) * | 2004-01-20 | 2006-12-12 | Tung Yu Oa Co., Ltd. | Reclining apparatus for chair |
US20090015050A1 (en) * | 2004-03-13 | 2009-01-15 | Hans Dehli | Articulating chair |
EP1750548A2 (de) * | 2004-03-13 | 2007-02-14 | Interactive Health, LLC | Gelenkiger stuhl |
DE202005004880U1 (de) * | 2005-03-26 | 2006-08-03 | Sander, Armin | Stuhl, insbesondere Bürostuhl |
US7717515B2 (en) * | 2006-04-24 | 2010-05-18 | Humanscale Corporation | Chair having an automatically adjusting resistance to tilting |
DE202007006762U1 (de) * | 2006-10-13 | 2008-02-14 | Bock 1 Gmbh & Co. Kg | Mechanik für einen Bürostuhl |
US20080232962A1 (en) * | 2007-03-20 | 2008-09-25 | Agrawal Giridhari L | Turbomachine and method for assembly thereof using a split housing design |
US8646839B2 (en) * | 2008-06-17 | 2014-02-11 | Co.Fe.Mo. Industrie S.R.L. | Adjustment device for chairs |
DE102009009287A1 (de) * | 2009-02-17 | 2010-09-09 | Uhlenbrock, Christel | Sitzmöbel, insbesondere Bürodrehstuhl |
US8272692B1 (en) * | 2009-10-26 | 2012-09-25 | Epperson Ronald B | Office chair having tiltable seat and back |
BR112012031880B1 (pt) | 2010-06-15 | 2020-08-11 | Claudia Plikat | Cadeira |
DE102011001811A1 (de) * | 2011-04-05 | 2012-10-11 | Wilkhahn Wilkening + Hahne Gmbh + Co. Kg | Stuhl |
TWM421757U (en) * | 2011-09-20 | 2012-02-01 | Wen-Shan Ke | Guiding mechanism of seat cushion of chair |
US9504326B1 (en) | 2012-04-10 | 2016-11-29 | Humanscale Corporation | Reclining chair |
WO2013177690A1 (en) * | 2012-06-01 | 2013-12-05 | Duke Aaron | Chair and chair tilt control assembly |
US9706845B2 (en) | 2012-09-20 | 2017-07-18 | Steelcase Inc. | Chair assembly |
WO2015161281A1 (en) | 2014-04-17 | 2015-10-22 | Hni Technologies Inc. | Chair and chair control assemblies, systems, and methods |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
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 |
EP3282899B1 (de) | 2015-04-13 | 2021-11-03 | Steelcase Inc. | Sitzanordnung |
US9713381B2 (en) | 2015-06-11 | 2017-07-25 | Davis Furniture Industries, Inc. | Chair |
US10383448B1 (en) | 2018-03-28 | 2019-08-20 | Haworth, Inc. | Forward tilt assembly for chair seat |
CN108371436B (zh) * | 2018-04-25 | 2023-10-27 | 严澄宇 | 弹力跷跷板式的自由倾仰机构及自由调节转椅 |
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GB815779A (en) * | 1957-03-21 | 1959-07-01 | Finn Lie | Tilting mechanism for seat furniture |
GB1425363A (en) * | 1972-05-31 | 1976-02-18 | Lie F | Resilient mounting assembly for a tilting chair |
DE3605809A1 (de) * | 1986-02-22 | 1987-08-27 | Koenig & Neurath Kg | Sitzmoebel |
DE3616475C1 (de) * | 1986-05-15 | 1987-06-11 | Kusch Co Sitzmoebel | Hoehenverstellbarer,mit Gasdruckfeder ausgestatteter Drehstuhl,insbesondere Buerostuhl oder -sessel |
US4979778A (en) * | 1989-01-17 | 1990-12-25 | Brayton International, Inc. | Synchrotilt chair |
DE3916474A1 (de) * | 1989-05-20 | 1990-11-22 | Roeder Soehne Sitzmoebelfab | Stuhl, insbesondere arbeits- oder buerostuhl |
DE4023609A1 (de) * | 1990-07-25 | 1992-01-30 | Koolwijk Jan | Neigungsmechanik fuer objektstuehle |
CH690019A5 (de) * | 1992-07-16 | 2000-03-31 | Giroflex Entwicklungs Ag | Traggestell für einen Stuhl, insbesondere für einen in der Höhe und Neigung verstellbaren Bürostuhl. |
DE4313301C2 (de) | 1993-04-23 | 1995-12-21 | Simon Desanta | Stuhl |
NO934790L (no) * | 1993-12-23 | 1995-06-26 | Jurek Buchacz | Anordning ved vippebeslag for en stol |
-
2000
- 2000-05-26 DE DE10026292A patent/DE10026292C2/de not_active Expired - Fee Related
- 2000-06-24 DE DE50006123T patent/DE50006123D1/de not_active Expired - Lifetime
- 2000-06-24 EP EP00113435A patent/EP1066775B1/de not_active Expired - Lifetime
- 2000-06-24 AT AT00113435T patent/ATE264636T1/de not_active IP Right Cessation
- 2000-07-05 CA CA002313565A patent/CA2313565C/en not_active Expired - Fee Related
- 2000-07-05 US US09/610,469 patent/US6523896B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE264636T1 (de) | 2004-05-15 |
CA2313565A1 (en) | 2001-01-06 |
CA2313565C (en) | 2005-09-27 |
EP1066775A1 (de) | 2001-01-10 |
US6523896B1 (en) | 2003-02-25 |
DE10026292C2 (de) | 2003-03-20 |
DE10026292A1 (de) | 2001-12-20 |
DE50006123D1 (de) | 2004-05-27 |
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