EP2543281B1 - Chair and standing position furniture - Google Patents

Description

The invention relates to a chair and floor-sitting furniture according to the preamble of claim 1.

State of the art

Ergonomic sitting distinguishes between seating (chair) or upright sitting furniture. A seat with variable seating position is for example from the DE 299 00 156 U1 known. In this case, the lower seat foot is formed in three levels, which allows three different seating positions, namely normal, tilted forward or backward.

From the EP 0 543 151 B1 is a chair known, in which by a lower point or line contact a static seating position is avoided. Rather, by balancing the upper body, an optimal position of the spine of the upper body is achieved.

A similar effect can be achieved by means of a lower curved runner, similar to a rocking chair, as long as the user person balances on the seat.

A similar effect is achieved by sitting on an inflated larger ball.

Irrespective of this, so-called standing aids are known become. Wilkhahn, for example, has come to know a standing aid under the term "Stitz" (see also US 4,130,263 ). A so-called standing aid is neither a sitting nor a standing, but a change of posture for the position in between. The "Stitz" therefore forms a third leg and the standing seat surface acts diagonally against the buttocks.

Both the ergonomic and balancing seat and an ergonomic standing seat are of great importance for a sitting position or a standing posture position. In daily use, therefore, both positions should be considered more optimally.

From the DE 93 12 719 U1 a variable armchair has become known in which by conversion of the lower furniture frame from a chair a rocking chair can be produced. This furniture is only used as a chair and not as a sitting room furniture.

From the DE 40 15 841 A1 is a multi-purpose chair has become known in which by folding the backrest a knee support and thus a different seating position can be achieved. As a sitting room furniture, this furniture is also not usable.

Object of the invention

The invention has for its object to propose a piece of furniture, which is used both as seating and as a sitting room furniture.

Solution of the task

This object is solved by the characterizing features of claim 1.

Advantages of the invention

The seat and floor seating furniture according to the invention is a multifunctional device and allows both to take an ergonomic and thus back-friendly sitting position by the user person without leaning against the backrest, on the seat moves balancing. This is possible in particular by the curved lower runners in the manner of a rocking chair. The approximately circular curved double runner extends in the longitudinal direction of the chair, wherein the center of the circle is approximately perpendicular to the center of gravity of the seated. These Double skid allows (normal) seated persons to move forward and back through the upper body while supporting pressure through the legs to achieve different seat inclinations, e.g. B. Work Seat - Retirement Seat, with the respective positions affecting the lordosis of the spine.

The skid is at the back of the chair designed to provide a stop in the sitting posture position that determines the proper average inclination and height of the standing seat and prevents the standing seat from turning backwards or tipping over.

Due to the upright middle position when sitting a kind of rolling movement takes place on a curve, which leads to an upright posture of the body and thus the spine. Balancing the tilting movement further leads to a healthy posture.

Will the user person supported back against the backrest of the chair, it is avoided by an extension of the lower runner tilting backwards.

The chair is therefore used in several seating positions and in particular in a sitting position in which the backrest is not used. Rather, a balancing of the upper body of the user person takes place due to a rolling movement of the lower runner. Thereby, a movement only takes place forwards and backwards.

Of course, a seating position using the backrest is provided.

However, the invention also provides for the use of a reclining chair by having the back of the chair in its upper portion form a cantilevered seat upon which the user sits in a standing-sitting position. In this case, the upper seat of the sitting furniture is flat or curved.

Accordingly, in order to use the combined furniture as standing-still furniture, it must be rotated 180 ° about a vertical axis to point in the same direction for the user's person. In this position, preferably in the sitting position to the user person inclined backrest is moved in the opposite direction, so that the lower runner serves as a stop at one end. As a result, the user person assumes a slightly inclined forward posture, that is, the backrest with its downwardly directed Abstützschenkel serves as an obliquely forwardly directed Abstützschenkel. The standing-up function of the furniture is ensured by the fact that the upper area of the backrest of the chair is bent backwards at an appropriate angle and thus height, depth and inclination is achieved for use as a standing seat.

As a result, both an ergonomic sitting position and an ergonomic sitting position with one and the same furniture is possible. There are a number of work tables that can be adjusted in height to sitting or standing position. For such tables, one and the same chair can be used as a seat or as a chair.

The invention therefore allows a normal sitting with backrest, a balanced sitting without backrest and a sitting, without conversion, flaps or turning the whole object except around the vertical axis.

In the dependent claims further advantageous embodiments and improvements of claim 1 seated and / or standing seat furniture are specified. Furthermore, the dependent claim 8 and the following claims 9 and 10 describes an advantageous development of the chair according to the invention.

For an ergonomic use of the furniture, it is possible that the back of the chair in a horizontal Seat occupies an acute angle between the seat and backrest of about 60 to 80 °, preferably 70 °. This is convenient to relax at the rear Leaning, that is a use of the backrest to obtain an upright backrest. Even when using a standing-sitting position, the backrest is in a vertical or backward inclined position.

It is also advantageous if the seating both in the seat part and in the sitting part of each two side view approximately U-shaped tube racks are formed, which are stiffened at their respective ends via connecting webs to form lateral frames. The space between these side frames is advantageously provided with a flexible coating. In this case, the frame racks for the seat part and the Stehsitzteil can each be formed in one or more parts, wherein in multi-part design connecting struts are provided.
The invention therefore represents a multiple sitting and "stitz" device, ie a duo or multifunctional device.

drawings

Figur 1a

eine Seitenansicht;

Figur 1b

eine Frontansicht eines ersten Ausführungsbeispiels;

Figur 2

eine Seitenansicht eines zweiten Ausführungsbeispiels mit einem einteiligen Rahmen zwischen Sitzteil und Stehsitzteil;

Figur 3

ein weiteres Ausführungsbeispiel mit einem zentralen Abstützholm;

Figur 4

das in den Figuren 1a und 1b gezeigte Steh- und/oder Stehsitzmöbel in einer ersten Extremstellung und

Figur 5

das in den Figuren 1a und 1b gezeigte Stehund/oder Stehsitzmöbel in einer zweiten Extremstellung.

Advantageous embodiments of the invention are illustrated in the drawings and explained in more detail in the following description. Show it:

FIG. 1a

a side view;

FIG. 1b

a front view of a first embodiment;

FIG. 2

a side view of a second embodiment with a one-piece frame between the seat part and Stehsitzteil;

FIG. 3

a further embodiment with a central support spar;

FIG. 4

that in the FIGS. 1a and 1b shown standing and / or standing room furniture in a first extreme position and

FIG. 5

that in the FIGS. 1a and 1b Stehund / or Stehsitzmöbel shown in a second extreme position.

In the FIG. 1a is the seat and / or sitting room furniture 1 in side view, in the FIG. 1b shown in front view from the direction of arrow 2. In this case, a seat part 3 is formed from two lying in side view first U-profile 4, 4 ', with upper legs 5, 5', which carry a seat SF, with two lower, bent legs 6, 6 ', the support surface AF or Support skid KF. KF 'form and with connecting webs 7, 7', which essentially determine a height H1 of the seat SF. The in the FIG. 1a shown position represents approximately a balanced position AS, in which the user person is aligned with its spine approximately parallel to a vertical longitudinal central axis 8. A lower point of contact 9 or 9 'of the curved support runners KF, KF' represents approximately the optimum support points of the two support runners KF, KF 'with balanced seat part 3. To these points, which on a perpendicular in the plane of the drawing FIG. 1a lying in line, the user person must move the chair or the seat and / or sitting room furniture 1 by a balancing movement.

A backrest RL is supported by legs 10, 10 'and is inclined with respect to the seat SF at an acute angle α of approximately 60 ° to 80 ° and preferably 70 °. Will the user person lean against, the chair or the Sitzund / or Stehsitzmöbel 1 is tilted backwards until the backrest RL occupies about a vertical position. For this purpose, the lower support runner KF, KF 'on the backrest RL addition by Abstützschenkeln 11, 11' extended, so that the furniture 1 when leaning the user person can not tilt backwards, the Abstützschenkel 11, 11 'in the legs 10, 10th go over.

The two laterally disposed U-profiles 4, 4 'are fixed in an upper region via a first cross member 12, via a lower second cross member 13 and a third cross member 14 in the upper region of the connecting webs 7, 7' against each other. To form the seat SF, the upper legs 5, 5 'with a dashed lines in the FIG. 1b indicated flexible coating UE1 provided.

The sitting / standing furniture 1 according to the invention also consists of a standing seat part 15, which is formed by extensions of the legs 10, 10 'with legs 16, 16', which carry a standing seat surface SSF, wherein the standing seat part 15 and the support legs 11, 11 ' includes. The standing seat surface SSF may be embodied as an approximately horizontally oriented standing seat surface or as a rounded standing seat surface 16. The Stehsitzteil 15 is as well as the seat part 3 in side view U-shaped profiles 17, 17 'is formed. The U-shaped profiles 17, 17 'comprise the upper legs 16, 16' or the upper standing seat surface SSF and the lower support legs 11, 11 ', which simultaneously form the anti-tilt device as an extension of the runners KF, KF' for the seat part 3, wherein the intermediate legs 10, 10 'connecting webs 18, 18' form and stabilize the backrest RL. The parallel connecting webs 18, 18 'determine with their length Stehsitzhöhe H2.

The connecting webs 7 and 7 'and 18 and 18' are bolted together via connecting pins 19, 20 and 19 ', 20', so that the combined sitting / standing furniture 1 forms a one-piece structure.

• Sitzhöhe H1 = 450 mm,
• Stehhöhe H2 = 700 mm,
• Sitztiefe T1 = 420 mm,
• Sitztiefe T2 des Stehsitzteils mit T2 = 200 mm,
• Winkel α zwischen SF und RL mit α = 70°,
• Winkel β zwischen 5, 5' und 7, 7' mit β = 110°,
• Winkel γ zwischen 10, 10' und 16, 16' mit γ = 50°,
• Radius R der unteren Auflagekufe = 1000 mm,
• Abstand a der Verbindungsstege 7 und 18 mit a = 15 mm.

In a specific embodiment, the following dimensions are realized:

• Seat height H1 = 450 mm,
• Standing height H2 = 700 mm,
• Seat depth T1 = 420 mm,
• Seat depth T2 of the seated part with T2 = 200 mm,
• Angle α between SF and RL with α = 70 °,
• Angle β between 5, 5 'and 7, 7' with β = 110 °,
• Angle γ between 10, 10 'and 16, 16' with γ = 50 °,
• Radius R of the lower support skid = 1000 mm,
• Distance a of the connecting webs 7 and 18 with a = 15 mm.

The distance between the respective C-profiles 4, 4 ', that is, a length L of the transverse struts 12, 13 and 14 is L = 400 mm.

In the FIG. 1b the same parts are provided with the same reference numerals.

The two U-profiles 17, 17 'of the standing seat part 15 are in turn connected by an upper cross member 21 and a lower cross member 22, which give the frame as a spacer the necessary support. The transverse bars 21, 22 are formed as a kind of transverse struts.

The lower support legs 11, 11 'are dimensioned shorter than the upper standing seat surface SSF and in the mentioned embodiment have a depth T3 of approximately 100 mm. The support depth T3 must be such that the chair can not tilt backwards when leaning by the user person.

Just as the seat SF is formed by the cover UE1, a back surface RF of the seat back RL is one with a cross hatching in the FIG. 1b formed second cover UE2 and is the standing seat surface SSF by a in the FIG. 1b formed with dashed lines indicated third coating UE3. The coatings UE1 to UE3 are optionally designed as a multi-part covering or as a one-piece covering. Of course, it is also provided instead of the coatings to use a seat plate, a back plate and a seat plate with inherent stability. With appropriate dimensioning of these plates can be at least partially dispensed with the cross beams, the plates then by means of connecting means with the are connected to the left and right of the tubular frame or overlap or embrace the left and the right part.

Overall, this is in the FIGS. 1a and 1b Seat and / or standing seat 1 shown a spatial structure RS, which is substantially symmetrical to a perpendicular to the plane of the drawing FIG. 1b is formed in extending Eben E and is composed of the seat part 3 and the Stehsitzteil 15, which are connected by means of the four connecting pins 19, 19 ', 20 and 20'. In this case, the seat part 3 comprises the two U-profiles 4, 4 'installed as horizontal U's or standing C's, the three transverse bars 12, 13 and 14, by which the U-profiles 4, 4' are connected and the seat surface SF. The standing seat part 15 here comprises the two U-profiles 17, 17 'installed as horizontal U's or standing C's, the two transverse bars 21, 22, by which the U-profiles 17, 17' are connected, the backrest RL and the standing seat surface SSF , By the lower leg 6 and the Abstützschenkel 11 of the U-profiles 4 and 17, the first skid KF is formed. By the lower leg 6 'and the Abstützschenkel 11' of the U-profiles 4 'and 17', which according to the FIG. 1b are arranged parallel to the components 4, 17, the second runner KF 'is formed. These skids KF and KF 'allow the user person, the seated and / or sit-down furniture 1, both depending on the type of use seats or standing seats as well as depending on the seating position or the Stehsitzposition, from in the FIG. 1a shown balanced position in a first extreme position and a second extreme position to bring. Here, the first extreme position, in which the runners KF and KF 'in a region of the transverse spar 13 with first free ends E1, E1' rest on a substrate UG, usually reached and used when the user person sitting on the seat part 3 and leaning forward, for example, to grab a book from a desk standing in front of the sitting and / or standing furniture 1. The second extreme position, in which the runners KF and KF 'rest in an area of the transverse spar 22 with second free ends E2 and E2' on the substrate UG, takes the seat and / or sit-down furniture 1, for example, when the sitting on the seat part 3 user person against the backrest RL strongly reclines and this may even with the feet from the ground UG depressed. If the user makes use of the Stehsitzteil 15 and this stands in a standing area SB of the substrate UG and facing the seat and / or Stehsitzmöbel 1 with the buttocks, the described second extreme position is always taken when the user, with a high proportion of their body weight via the standing seat SSF in the Sitzund / or Stehsitzmöbel 1 introduces. As soon as the user in particular tightens their leg muscles in order to achieve a slightly higher sitting position than in the second extreme position of the sitting and / or standing seat furniture 1 or to move the sitting and / or standing furniture 1 in the direction of the balanced position, a rolling movement of the seat starts or Stehsitzmöbel 1 on the ground in the direction of the illustrated balanced position. During this movement, the standing-up seat portion SSF rises and the user can easily decelerate, stop or reverse the initiated movement of the seat and / or floor-standing furniture 1 by reducing the tension of the leg muscles. In a third sitting position on the seat part 3, it is possible for the user to use the upright seat part SSF for relaxed sitting as an armrest. This is possible if the user person turns to sit on the seat part 3 with their chest area of the backrest RL and sits down on the seat surface SF in a manner similar to a saddle and in this case - from the perspective of FIG. 1b considered - the feet off to the side next to the seat and / or standing seat 1. The legs 6,6 ', 7, 7', 11, 11 'and the lower parts of the connecting webs 18, 18', together with the transverse struts 13, 22 and 14 substantially a foot part FT of the seat and / or sitting furniture 1.

The embodiment according to FIG. 2 differs from the one after FIG. 1a and 1b only in that the two connecting web pairs 7, 18 and 7 ', 18' (see FIG. 1a ) are each combined to form a connecting web 23, 23 ', wherein the connecting web 23' in the side view of FIG. 2 completely hidden by the connecting web 23. All other details correspond to the embodiment according to FIG. 1a ,

The embodiment according to FIG. 3 dispenses with both double connecting web 7, 18 and 7, 18 '(see FIG. 1a ) as well as on common connecting webs 23, 23 'like these in the FIG. 2 are shown. Rather, centrally located below the seat SF connecting web 24, 24 'are provided, whose course is aligned with the longitudinal central axis 8 and which the upper legs 5, 5' and the lower curved legs 6, 6 ', which the support runner KF, KF' form, connect. Again, transverse bars 12, 13, 14 are used to stiffen the frame. Due to the side view, the components 5 ', 6', 24 'and KF' covered by the components 5, 6, 24 and KF.

Like from the FIG. 3 As can be clearly seen, the lower bent legs 6, 6 'form a kind of skids KF, KF' similar to a rocking chair.

Will that be in the FIGS. 1a to 3 used furniture 1 as a standing seat, it stands essentially in a lower end portion of the support legs 11, 11 ', in which the cross member 22 is located. The cross member 22 may each be formed as a curved, horizontally oriented Abstützholme.

In the FIG. 1a is the floor and / or sitting room furniture 1, which is also referred to as combined seating or multifunctional seating, shown in the balanced position AS. In contrast, this is in the FIGS. 1a and 1b describe standing and / or standing seat 1 in the FIG. 4 shown in a second extreme position ES2, this position is reached starting from the balanced position when the user person sitting on the seat SF and extremely leaning back and possibly supporters with their feet depressed from the ground UG or if the user person standing up - and / or standing seat 1 as a sitting uses. During the movement from the balanced position AS into the second extreme position ES2, the upright and / or standing seat furniture 1 with its runners KF, KF 'rolls on the substrate UG up to the second free ends E2, E2' of the support legs 11, 11 'Increased resistance to rolling occurs to prevent slipping or tipping over the floor and / or standing seat 1. The second extreme position ES2 is usually taken during standing when the user person sits on the standing seat surface SSF and their feet are in the standing area SB on the ground UG. When sitting, the legs of the user person with the standing and / or standing seat furniture 1 form a kind of tripod.

In the FIG. 1a is the floor and / or sitting room furniture 1, which is also referred to as combined seating or multifunctional seating, shown in the balanced position AS. In contrast, this is in the FIGS. 1a and 1b describe standing and / or standing seat 1 in the FIG. 5 shown in a first extreme position ES2, this position being reached starting from the balanced position when the user person is seated on the seat surface SF and strongly tilts forward, for example, to pick up some of the ground UG. During the movement from the balanced position AS into the first extreme position ES1, the upright and / or standing seat furniture 1 with its skids KF, KF 'rolls on the substrate UG up to the first free ends E1, E1' of the lower legs 6, 6 'an increased resistance to further unwinding occurs to prevent slipping or tipping over the floor and / or standing seat 1. Between the two in the FIGS. 4 and 5 shown extreme positions ES1 and ES2, the standing and / or sitting room furniture 1 as a function of the sitting position or the standing position of the user person occupy any intermediate positions. As a result, the user is a health-promoting, active sitting and / or standing still possible by a frequent change of the sitting position or the sitting position.

The invention is not limited to the illustrated and limited embodiments described. On the contrary, it also encompasses all expert training courses within the scope of the protective rights claims.

LIST OF REFERENCE NUMBERS

1

Standing seating

2

arrow

3

seat part

4, 4 '

U-profile

5, 5 '

upper leg / seat

6, 6 '

Lower leg / support surface / support runner

7

connection web

8th

vertical longitudinal central axis

9

lower point of contact

10, 10 '

leg

11, 11 '

support leg

12

first crossbar of 3

13

second crossbar of 3

14

third crossbar of 3

15

Standing seat part

16, 16 '

leg

17, 17 '

U-profile

18, 18 '

connecting web

19, 19 '

connecting bolts

20, 20 '

connecting bolts

21

upper cross member of 15

22

lower crossbars of 15

23

connecting web

24, 24 '

central, vertical connecting bridge

a

Distance between the connecting webs 7 and 18

AF

bearing surface

AS

balanced position

e

level

E1, E1 '

first free end of KF, KF '

E2, E2 '

second free end of KF, KF '

ES1

first extreme position

ES2

second extreme position

FT

footboard

H1

Height of the seat

H2

Height of the standing seat surface

KF, KF '

Skid, runner

L

Length of crossbars

R

Radius R of the lower runner

RL

backrest

RS

spatial structure

SB

shallow area

SF

seat

SSF

Standing seat

T1

Depth of the seat part

T2

Depth of the chair seat part

T3

Depth of the support leg

UE1

first coating

UE2

second coating

UE3

third coating

UG

underground

α

Angle between SF and RL

β

Angle between 5, 5 'and 7, 7'

γ

Angle between 10, 10 'and 16, 16'

Claims (12)

1. A chair and standing/seating furniture (1), having a first, lower seating surface (SF), and a second, higher, laterally projecting standing/seating surface (SSF), both being disposed at the furniture (1) in a manner facing away from each other, wherein the backrest (RL) of the seating part of the furniture (1) has said laterally projecting standing/seating surface (SSF) in the upper region thereof, wherein the lower region of the furniture (1) is embodied as bent support runners (KF, KF'), wherein as tilt safety for the seating surface (SF), the support runner (KF, KF') is extended by means of support journals (11, 11') beyond the backrest (RL), and wherein by means of the support runner (KF, KF') and the extension thereof a seating and standing/seating position is enabled by means of the support journals (11, 11').
2. A furniture according to claim 1, characterized in that the approximately horizontal seating surface (SF) of the furniture (1) interacts with lower, bent support runner (KF, KF'), wherein in particular the backrest (RL) of the furniture (1) preferably takes on an acute angle α of 60 to 80°, preferably 70', toward the seating surface (SF).
3. The furniture according to claims 1 or 2, characterized in that In a side view, a seating part (3) and/or a standing/seating part (15) consist of approximately U-shaped tubular profile (4, 4'; 17, 17') being disposed on both sides, each having at the upper and lower ends thereof a horizontal lateral beam (12, 13, 21, 22), wherein the connecting bars (7, 7') of the U-profile (4) and/or the connecting bars (18, 18') of the U-profile (17) also have a lateral beam (14).
4. The furniture according to claim 3, characterized in that the adjoining longitudinal journals (7, 7'; 18, 18') of the U-shaped profiles (4, 4'; 17, 17'), or the tubular frames, are embodied at least partially in one piece, or in multiple pieces.
5. The furniture according to one of the claims 1 to 4, characterized in that at least the seating surfaces (SF) of the seating part (3), and/or the standing/seating surfaces (SSF) of the standing/seating part (15) are equipped with an elastic cover (UE1, UE3).
6. The furniture according to one of the claims 1 to 5, characterized In that the angled or rounded standing/seating surface (SSF) has a depth (T2) at the upper end of the backrest (RL) of the seating part (3) of approximately 15 cm to 20 cm, or a radius of approximately 8 to 10 cm.
7. The furniture according to one of the claims 1 to 6, characterized in that the support journals (11, 11') have a depth (T3) in the lower region of the standing/seating part (15) of about 10 cm to 20 cm.
8. The furniture according to one of the previous claims, characterized in that an approximately circular double runner (KF, KF') is disposed in the longitudinal direction of the furniture, wherein the center of the circle is position about perpendicular over the center of gravity of the person seated.
9. The furniture according to claim 8, characterized in that the runner (KF, KF') is constituted in the rear region of the chair such that a stop is formed with a standing/seating posture.
10. The chair and standing/seating furniture (1) according to claim 1, characterized by the following features:

    - a seating surface (SF) being disposed at a seating height (H1),

    - a backrest (RL), and

    - a foot part (FT),

    - wherein the foot part (FT) supports the seating surface and the backrest (RL),

    - wherein the seating surface (SF), the backrest (RL), and the foot part (FT) are fixed in their position to each other,

    - wherein the foot part (FT) may be rolled off from a balanced position (AS) on a subsurface (UG) in a pitching movement toward the front Into a first extreme position (ES1), and

    - wherein the foot part (FT) may be rolled off from the balanced position (AS) on a subsurface (UG) in a further pitching movement toward the back into a second extreme Position (ES2),

    - wherein the seating furniture (1) comprises an additional seating surface (SSF),

    - wherein the additional seating surface (SSF) is disposed on the backrest (RL) in opposite direction toward the first seating surface (SF).
11. The furniture according to claim 8, characterized in that the additional seating surface (SSF) is embodied as a standing/seating surface (SSF) at a standing/seating height (H2).
12. The furniture according to claims 8 or 9, characterized in that the standing/seating height (H2) of the standing/seating surface (SSF) is greater than the seating height (H1) of the seating surface (SF).

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