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:
Jul. 07, 1998
Filed:
Oct. 25, 1995
Helmut Schlessmann, Waiblingen, DE;
Other;
Abstract
A hand-held working tool has a motor housing and a motor with output shaft positioned in the motor housing. A clutch housing is connected to the motor housing. A centrifugal clutch is positioned in the clutch housing. A drive shaft with a first and a second end is provided. The centrifugal clutch detachably connects the output shaft to the first end of the drive shaft. The centrifugal clutch has fly weights connected to the output shaft and a clutch drum connected to the first end of the drive shaft. This clutch drum surrounds the output shaft and the fly weights. A cutting element is connected to the second end of the drive shaft. A protective tube having a proximal end connected to the clutch housing and a distal end connected to the cutting element is provided. The drive shaft is enclosed in the protective tube. A bearing element is positioned at the first end of the drive shaft. Radial play is provided between the bearing element and the first end of the drive shaft. This radial play is smaller than the distance between the fly weights and the clutch drum.