Linear actuator for beds, slatted beds or chairs

Details Linear actuator for beds, slatted beds or chairs Linear actuator for beds, slatted beds or chairs

2005-06-21

2009-10-06

Grosz, Alexander (Department: 3673)

Beds

Invalid bed or surgical support

Sectional user supporting surface

C005S616000, C297S069000, C297S362140, C318S467000

Reexamination Certificate

active

07596820

ABSTRACT:
An actuator for beds, slatted beds or chairs of the type accommodating, in a cabinet, two drive units based on a spindle and a spindle nut configured as an adjustment element, cooperating with an arm of a rotary shaft for a backrest section and a legrest section, respectively, in the bed, the mattress support or the chair. The two spindles are rotational interconnected and are driven by a common reversible electric motor. By having just one motor and one transmissions, as well as no switching mechanism between the two spindles, a simple and inexpensive structure is provided.

REFERENCES:
patent: 1695772 (1928-12-01), Mingle et al.
patent: 3059248 (1962-10-01), Wetzler
patent: 7009353 (2006-03-01), Dewert
patent: 2004/0015320 (2004-01-01), Nagaoka et al.
patent: 19654110 (1998-01-01), None
English Abstract of DE 19654110.

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