US 5,044,587 AGranted

Ergonomic seat

AssigneeMarpal AG

InventorHugo Degen

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Abstract

The foot bearing the seat surface of a seat is divided at a distance of 20-30 cm from the seat surface. Between the mutually facing end faces of the two foot parts (5a,5b) a rubber cushion (9) is arranged, the circumferential area of which is widened to form a brake ring (11). The elastic restoring force, working counter to the inclination of the seat, of this cushion is reinforced by two further cushions (16,17) arranged within the foot parts (5a,5b). By means of the suitable arrangement of sliding elements with low friction (T1-T3), the mutual rotation between the two foot parts (5a,5b) is ensured. Thanks to this construction, the seat surface can be swiveled in a tumbling manner in such a way that every point of said seat surface moves on an imaginary spherical surface and thanks to the mentioned elastic restoring force, the seat part always returns automatically to its initial position. When the seat is inclined, the then undesired rotation of the upper seat part (5a) is prohibited by the friction between its edge area (R) and the compressed brake ring (11).

Claims6

Dependent claims

An ergonomic seat, comprising a stand portion supported on an underalying surface;

a seat portion mounted on said stand portion and formed with a seat surface and a columnar foot projecting from said seat surface to be received by said stand portion, said columnar foot having an upper section, a lower section and a central region arranged between said upper and lower sections approximately 20-30 cm below said seat surface;
and an elastic joint device positioned in said central region of said columnar foot, said elastic joint device including first mounting means for resiliently mounting said upper section of said columnar foot on said lower section of said columnar foot such that said upper section is laterally deflectable in a tumbling manner from a rest positions and such that said supper section automatically returns to said rest position after its lateral deflection therefrom, said first mounting means including at least one elastic cushion positioned in said central region, and second mounting means for rotatably mounting said upper section of said columnar foot on said lower section of said columnar foot, said second mounting means including sliding elements having anti-friction characteristics to thereby promote the rotation of said upper section relative to said lower section.

Dependencies are inferred from the claim text.