The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2001
Filed:
Jun. 24, 1999
Ralf Bokämper, Lübbecke, DE;
Andreas Roither, Blelefeld, DE;
Dewert Antriebs- und Systemtechnik GmbH & Co. KG, Kirchlengern, DE;
Abstract
An electromotoric operating mechanism, such as a single drive or dual drive, for height adjustment of an article of furniture, especially for furniture items useful in the field of hospitals and/or nursing, includes a drive having an output member in the form of a worm wheel, a spindle mechanism including an adjusting spindle in driving relationship with the drive, and a spindle nut mounted on the adjusting spindle and interacting with a link member in fixed rotative engagement with a shaft of an adjustable piece of furniture, and a clutch mechanism releasably coupling the output member with the adjusting spindle. The clutch mechanism includes a guide member, which is fixedly secured on the adjusting spindle, and a clutch gear, with the worm wheel rotatably mounted on the guide member. The clutch gear is arranged on the guide member in fixed rotative engagement but axially displaceable relative thereto. Normally, the clutch wheel is in engagement with the worm wheel, but can be moved out of engagement with the worm wheel for disengagement of the driving connection between the spindle mechanism and the drive.