US 6,149,236 AGranted

Chair frame, control mechanism and upholstery

AssigneeVitra Patents AG

InventorEgon Brauning

Life of this patent

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Abstract

The chair has a swiveling 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 a single 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 swiveling back consists of a rear support (3) connected by a hinge (V) and a stirrup-shaped tensioner (4) which is secured to said support and which can be inserted into upholstered part (8) of the 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 extends over the back (3, 4).

Claims11

Dependent claims

A chair having:

(a) a pivotable back part (3, 4), having an axis of rotation (D) that defines a rear region of a seat surface with posterior support (G), in that a section (32) of a frame of the back part (3, 4) continues as far as the axis of rotation (D) and is articulated there on a seat support (2) in a hinge connection (V);
and
(b) a single-piece padded covering (8) which is fastened on the seat support (2) and extends from the seat surface, beyond the axis of rotation (D), as far as a crossmember (30) behind the posterior support (G), wherein
(c) the pivotable back part comprises a rear support (3), which is articulated in the hinge connection (V), and a U-shaped rear tensioner (4) which is to be fastened over said rear support (3) and inserted into a back part of the padded covering (8);
and
(d) the single-piece padded covering (8) spans the seat surface and the back part (3, 4), and
(e) the rear support (3) has the crossmember (30) on which the padded covering (8) is fastened and passes from there to the back part (3, 4).

4 more elements

Dependencies are inferred from the claim text.