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公开(公告)号：EP2337476A1
公开(公告)日：2011-06-29
申请号：EP08874910.6
申请日：2008-10-21
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
摘要： The chair, for which the backrest (4) is designed, has an underframe (1) sitting on the ground, a mechanism (2) placed onto the underframe (1), and a seat (3) placed onto the mechanism (2). The backrest (4) is fastened to the mechanism (2), wherein the backrest (4) comprises a backrest frame (40), over the inside surface of which a backrest cover (8) is stretched. The backrest frame (40) has a lower base section (42), from which a lateral arm (43) extends upward on either side, wherein the upper ends of the lateral arms are bridged by a cross bar (44), which elastically deforms under the load of a user sitting in the chair in the direction of the force applied by the back of the user resting thereon, but is flexurally rigid against the action of the force perpendicularly from above. The height of the cross bar (44) is multiple times that of the thickness in the cross-section. The backrest cover (8) is provided with seams (80) strengthening the backrest cover (8) over a bordered free space between the base section (42), the lateral arms (43) and the cross bar (44).
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公开(公告)号：EP1039815B1
公开(公告)日：2003-09-17
申请号：EP98946677.6
申请日：1998-10-21
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
IPC分类号： A47C1/032
CPC分类号： A47C1/03294 , A47C1/03 , A47C1/03255 , A47C1/03272 , A47C1/03283
摘要： The adjustment mechanism contains a pneumatic spring that is placed vertically in the underframe, for adjusting height, and a pneumatic spring that is linked to the seat support at one end and the back-rest at the other, for synchronised adjustment of the angle. The pivotable back-rest and the fixed seat support (2) are coupled with each other on the main hinge pin (D) in two hinge connections. The main hinge pin (D) runs above and crosswise over the seat panel (3). The seat panel (3) has guide cranks (32) on its underside, the brackets (23) of the seat support (2) engaging in said guide cranks in such a way that they can slide crosswise to the main hinge pin (D). The front bearing journals (230) of the brackets (23) engage in the guide cranks (32). The seat panel (3) is coupled together with the reclining spring on the mobile hinge pin on the back-rest. The invention also relates to a back cover with a variably positionable lumbar reinforcement insert and height-adjustable arm-rests. The inventive adjustment mechanism offers efficient and comfortable synchronisation between the sequences of movement of the back-rest and the seat panel (3).
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公开(公告)号：EP1931232A1
公开(公告)日：2008-06-18
申请号：EP05786593.3
申请日：2005-10-03
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
CPC分类号： A47C7/44 , A47C1/03272 , A47C7/38 , A47C7/46
摘要： The chair has a sub-frame (1) which may be placed on the floor, a mechanism (2) supported on the sub-frame, a seat (3) placed on the mechanism (2) and a backrest (7) fixed to the mechanism (2). The backrest (7) comprises a rest frame (5), supporting an elastically-deformable backrest piece (6) with a back board (62). The back board (62) has a back section (60), to which a headrest attachment (61) is connected. The backrest (7) may be pivoted about a first rotational axis (D1) from an in principle vertical start position to a backwardly inclined position. The movement of the seat (3) and backrest (7) are synchronised to each other. On elastic deformation of the back section (60) in a free cavity towards the backrest frame (5) on the action of a force in the direction of the inclined position with the tendency for the spine of the user towards a concave position, means are provided (53,67,D4;55,610,D5) for an opposing lifting of the shoulder region as a transition zone for the back section (60) to the headrest attachment (61) and of the headrest attachment (61).
摘要翻译： 椅子具有可放置在地板上的子框架（1），支撑在该子框架上的机构（2），放置在该机构（2）上的座椅（3）和固定到该框架上的靠背（7） 机制（2）。 靠背（7）包括支撑框架（5），支撑具有背板（62）的可弹性变形的靠背件（6）。 后板（62）具有后部（60），头枕附件（61）连接到该后部（60）。 靠背（7）可以围绕第一旋转轴线（D1）从原则上的竖直起始位置枢转到向后倾斜的位置。 座椅（3）和靠背（7）的运动彼此同步。 当在倾斜位置的方向上的力的作用下，随着使用者的脊柱朝向凹入位置的倾向，自由空腔中的后部区段（60）朝向靠背框架（5）弹性变形， （53,67，D4; 55,610，D5），用于将肩部区域作为背部（60）到头枕附件（61）和头枕附件（61）的过渡区域的相对提升。
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公开(公告)号：EP1534101A1
公开(公告)日：2005-06-01
申请号：EP03793555.8
申请日：2003-08-28
申请人： Vitra Patente AG
CPC分类号： A47B37/00 , A47B13/02 , A47B2037/005
摘要： The invention relates to a table which is primarily used as an office or conference table, is longer than 2.5 m, and comprises an upwardly open trough (2) as a substructure which is arranged beneath the leaf (1) of the table and preferably consists of sheet metal which is e.g. 2 mm thick. The leaf of the table (1) is connected in a fixed manner to edges (25) which are bent away from the trough (2), creating a sandwich-type structure with mutual reinforcement of the leaf (1) of the table and the trough (2). Especially advantageously, the trough (2) has a trapezoidal cross-section. A grid of openings (210) in the trough (2) enables the feet (4) of the table to be mounted in any position. Additional appliance openings (211) are used to insert socket units (80), while installation openings (200) in the bottom (20) of the trough (2) as used as cable ducts. A height levelling device is provided in each foot (4). A particular advantage of the invention is the stability achieved with a relatively light structure, even for longer tables.
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公开(公告)号：EP1039816B1
公开(公告)日：2003-06-25
申请号：EP99949277.0
申请日：1999-10-20
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
IPC分类号： A47C1/032
CPC分类号： A47C1/03261 , A47C1/023 , A47C1/03255 , A47C1/03266 , A47C1/03272 , A47C7/38
摘要： The inventive chair mechanism is configured as a so-called synchronous mechanism in order to obtain a simultaneous, co-ordinated adjustment of the seat panel (8) when the angle of the back-rest (4) is adjusted. The underframe is placed on a height-adjustable pneumatic spring (13, 14). A mechanical torsion spring, preferably a rubber spring, is used for the synchronous movement, another mechanical spring, preferably a helical spring, being arranged parallel thereto with an accumulative effect in relation to the resistance of the torsion spring. The strength of the torsion spring can be regulated. The positioning of the axes of rotation (A1-A4) is crucial to the kinematics. The chair can be adjusted from an assembly position in which the springs can be used in their relaxed state, through a vertical position, to a reclining position. The most obvious advantages of the inventive chair mechanism are the large opening angle between the seat panel (8) and the back support in the reclining position, the adjustable degree of hardness, and the non-rigid seat shell. The relaxing reclining position can therefore be adopted as a permanent working position. The degree of lumbar support and the height of the back-rest can also be regulated. The user can select the optimum seat depth and therefore obtain effective support for the back and shoulders, without having to strain the neck muscles in order to maintain eye contact with a screen.
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公开(公告)号：EP1931232B1
公开(公告)日：2010-09-01
申请号：EP05786593.3
申请日：2005-10-03
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
CPC分类号： A47C7/44 , A47C1/03272 , A47C7/38 , A47C7/46
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公开(公告)号：EP2083654A1
公开(公告)日：2009-08-05
申请号：EP06804829.7
申请日：2006-10-24
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
CPC分类号： A47B13/06 , A47B87/002 , F16B7/185
摘要： Disclosed is a frame structure for a table. Said frame structure comprises a tabletop (1) which is supported by legs (2) and is provided with a top surface (11) as a working surface and a bottom surface (12), a support (4) mounted on the bottom surface (12) of the tabletop (1), and a base (3) for each leg (2). Said base (3) is located underneath the tabletop (1) and has a receiving zone (A) in which the associated leg (2) is mounted. The base (3) is equipped with connecting means (30, 32; 37, 38) which are to be connected to several supports (4) that extend in different optional directions. In addition to being connected to at least one support (4), the connecting means (30, 32; 37, 38) can be connected to at least one bracket (5) that extends in a different direction than the support (4). The bracket (5) can be fastened to the bottom surface (12) of the tabletop (1). Unused connecting means (30, 32; 37, 38) on the base (3) can be fastened to the bottom surface (12) of the tabletop (1). The connecting means encompass a first disk (30) and a second disk (37) that is arranged at a distance from and parallel to the first disk (30). The first disk (30) and the second disk (37) are interconnected by means of a central core (36) such that the base (3) has a wheel rim-type shape. Congruent holes (32, 38), which are used for connecting the supports (4) and brackets (5), are systematically arranged in a circle within the first and second disk (30, 37), outside the core (36). The receiving zone (A) that is to be connected to a leg (2) is formed by a central depression in the second disk (37). Said depression is open towards the outside while being in contact with the core (36) towards the inside. The upper end (211) of the brace piece (21) of each leg (2) is provided with a segment (22) which is fixedly disposed on said brace piece (21) and can be positively inserted into the receiving zone (A).
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公开(公告)号：EP2081466A1
公开(公告)日：2009-07-29
申请号：EP06804827.1
申请日：2006-10-23
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
CPC分类号： A47B3/0916 , A47B2200/0033
摘要： Disclosed is a folding table comprising a tabletop (1) that is supported by legs (2) and has a top surface (10) and a bottom surface (11). The legs (2), each of which encompasses two bases (20), can be swiveled about a first axis (A1), i.e. between a releasably locked operational position (G) in which the lower ends of the legs are to be placed on a floor and a releasably locked folded position (K) in which the legs (2) lie under the bottom surface (11) of the tabletop (1), at least in principle, parallel thereto. A mechanism (6) which is mounted on the bottom surface (11) of the tabletop (1) and is fitted with a guide rail part is assigned to each leg (2) in order to releasably lock the leg (2) in the operational position (G) and the folded position (K). The mechanism (6) has an actuator for releasing the lock. A brace (4) is hingedly connected in the upper region of the legs (2) in a second axis (A2) while being hinged to the mechanism (6) in a third axis (A3). The second axis (A2) can be swiveled about the first axis (A1), and the third axis (A3) runs along the guide rail part. The guide rail part of the mechanism (6) is at least substantially recessed in a cavity within the tabletop (1) that has internal hollow spaces in a sandwich-type structure. The first axis (A1) is formed by a pin (3) on which the two bases (20) of each leg (2) are arranged so as to be pivotable between the operational position (G) and the folded position (K) and be axially movable along the pin (3) such that the distance between the two bases (20) of a leg (2) can be adjusted within a range extending from a minimum span (smin) to a maximum span (smax).
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公开(公告)号：EP0949875B1
公开(公告)日：2001-11-21
申请号：EP97941142.8
申请日：1997-10-03
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
IPC分类号： A47C5/06
摘要： The chair has a swivelling back (3, 4) whose rotational axis (D) defines a rear area on the seat (D) with a support (G) for the posterior. A section (32) of the back (3, 4) of the frame extends to the rotational axis (D) where it is connected to the seat support (2) by means of a hinge (V). The upholstery is fastened to the seat support (2) in a single piece(8) extending from the seat via the rotational axis (D) to the frame section (30) behind the support for the posterior. The swivelling back consists of a rear support (3) connected by means of a hinge (V) and a stirrup-shaped rear tensioner (4) which is secured to said support and which can be inserted into upholstered part (8) of back. The single-piece upholstery (8) stretches over both the seat and back (3). The rear support (3) has a cross bar (30) to which the upholstery is fastened and from which it is extends over the back (3, 4).
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公开(公告)号：EP2337476B1
公开(公告)日：2012-08-15
申请号：EP08874910.6
申请日：2008-10-21
申请人： Vitra Patente AG
发明人： BRÄUNING, Egon
摘要： The chair, for which the backrest (4) is designed, has an underframe (1) sitting on the ground, a mechanism (2) placed onto the underframe (1), and a seat (3) placed onto the mechanism (2). The backrest (4) is fastened to the mechanism (2), wherein the backrest (4) comprises a backrest frame (40), over the inside surface of which a backrest cover (8) is stretched. The backrest frame (40) has a lower base section (42), from which a lateral arm (43) extends upward on either side, wherein the upper ends of the lateral arms are bridged by a cross bar (44), which elastically deforms under the load of a user sitting in the chair in the direction of the force applied by the back of the user resting thereon, but is flexurally rigid against the action of the force perpendicularly from above. The height of the cross bar (44) is multiple times that of the thickness in the cross-section. The backrest cover (8) is provided with seams (80) strengthening the backrest cover (8) over a bordered free space between the base section (42), the lateral arms (43) and the cross bar (44).
摘要翻译： 设计靠背（4）的椅子具有坐在地面上的底架（1），放置在底架（1）上的机构（2）和放置在机构（2）上的座椅（3） 。 靠背（4）固定在机构（2）上，其中靠背（4）包括靠背框架（40），在靠背框架的内表面上延伸有靠背罩（8）。 靠背框架（40）具有下部基部（42），侧向臂（43）从该下部基部（42）在任一侧向上延伸，其中侧部臂的上端由横杆（44）桥接，所述横杆（44）弹性变形 在坐在椅子上的使用者的负荷下，在使用者的背部所施加的力的方向上，但是从上方垂直地克服力的作用而弯曲刚性。 横杆（44）的高度是横截面厚度的数倍。 靠背罩（8）设置有接合部（80），该接合部在基部（42），侧臂（43）和横杆（44）之间的有界自由空间上加强靠背罩（8）。
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