Chairs and seats – Movable bottom – Interconnected with back for relative concurrent movement
Patent
1993-04-12
1995-12-05
Dorner, Kenneth J.
Chairs and seats
Movable bottom
Interconnected with back for relative concurrent movement
2973844, A47C 1032
Patent
active
054722616
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an arrangement in a recline chair, especially a recline chair having an adjustable back support in relation to the chair seat and a neck support.
BACKGROUND OF THE INVENTION
There are a plurality of different recline chairs which by means of various mechanisms can be converted from a sitting position to a lying position.
Typical features in these chairs include a link connection between the seat and the chair back, and in some chairs the chair back can be pivoted about an axis through the pivot points between the seat and chair back. In many chairs for home use the chair back pivots about a horizontal axis which is located somewhat higher up on the chair back, for example at level with the elbow of the user when she or he is sitting in an erected position in the chair.
PRIOR ART
From EP 0 164 367 there is known a recline chair including a chair back which is equipped with a shell on which the back cushioning itself is provided. However, no instructions are given therein that the shell and the corresponding cushioning should be allowed to alter in accordance with the various inclined positions of the chair back. This publication is mostly concerned with a neck support which by means of an arced extension arm can be brought to various inclined positions in relation to the chair back, namely by means of actuators, i.e. means which are provided below the seat and extended through the chair back.
EP 0 240 389 relates to a recline chair comprising a chair back including three elements, and due to link mechanisms between the various elements, the chair back will have its profile altered when being adjusted from an erected sitting position to a rearwardly inclined resting position. However, the three elements making up the known chair back will result in an "open" chair back, i.e. with openings or slits between the various elements, which will result in a restricted number of designs, and will depart from the principle of retaining a "whole" chair back with associated neck support.
U.S. Pat. No. 4,380,352 relates to a recline chair comprising a seat including a rearward portion pivoted for reclining of the chair and a chair back having an upper portion linked to the seat for pivotal motion therewith. This prior art chair has a fixed angle between the major area of the seat and the major area of the chair back. Thus, the area proving support for the user's lower back is constant in all positions of the chair, said publication therefore giving no instructions for the type of chair aimed for according to the present invention.
U.S. Pat. No. 4,966,413 relates to an articulated relaxation chair, in which a lumbar support member can be installed in the area of the chair back, but this lumbar support member is expanded or inflated by means of a fluid, and then by means of a switch or button on a control panel included in one of the arm rests of the chair. This previously known recline chair will thus provide a manual adjustment of the shape of the chair back, i.e. by means of manually operated elements, such that the user of the chair can adjust the support of the lumbar region according to his own wish. A disadvantage encountered by this solution is that when the user alters the inclination of the chair back, there will be a need for another adjustment of the lumbar region support.
NO 149 339 discloses an arrangement in an adjustable back and neck support for a sitting and/or bed furniture, wherein is provided an articulated back member which is adapted so that a person which is sitting in or lying on the furniture may exercise a pressure against the back support for thereby pivoting the neck support forwardly, for thereby allowing the user to take a more erected sitting position. However, this linked or articulated mechanism will not involve an alternation of the angular position of the back support, let alone the profile thereof in the lumbar support region.
BRIEF DISCLOSURE OF THE INVENTION
An object of the present invention is to provide a chair, espe
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patent: 3269767 (1966-08-01), Marzocchi
patent: 4040661 (1977-08-01), Hogan et al.
patent: 4251107 (1981-02-01), Sato
patent: 4380352 (1983-04-01), Diffrient
patent: 4452486 (1984-06-01), Zapf et al.
patent: 4830429 (1989-05-01), Petitjean
patent: 4966413 (1990-10-01), Palarski
Ekornes Arve
Ekornes Jostein
Oplenskdal Olav
Dorner Kenneth J.
Jr. Milton Nelson
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