Patent · US Active

Linear actuator for beds, slatted beds or chairs

US7596820B2 · kind B2 · utility

74Cited by

3References

11Claims

0Family size

Assignee

Linak A/S · DK

Inventors

Jens J.o slashed.rgen Nielsen · Sweetgum Street, DK
Norbert Klinke · Sweetgum Street, DK

Key dates

Filing date	Jun 21, 2005
Grant date	Oct 6, 2009
Priority date	—
Expiry date	Jul 12, 2026

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47C20/041
WIPO fieldFurniture, games
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.