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:
Sep. 23, 2003
Filed:
Jun. 18, 2002
Dietmar Baumann, Hemmingen, DE;
Hanniel Schmidt, Karlsbad, DE;
Herbert Vollert, Veihingen, DE;
Frieder Keller, Ubstadt-Weiher, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a drum brake device ( ), which is provided as a wheel brake for a motor vehicle. The invention proposes embodying the drum brake device ( ) with a brake belt ( ), which is disposed inside a brake drum ( ) and can flex in the radial direction of the brake drum ( ). Thrust exerted on one end ( ) of the brake belt ( ) with a simultaneous bracing of the other end ( ) of the brake belt ( ) causes the brake belt ( ) to be pressed against the brake drum ( ) from the inside and produces a braking moment. The invention has the advantage that a friction force exerted on the brake belt ( ) by the brake drum ( ) augments the thrust on the end ( ) of the brake belt ( ) and thus boosts the braking moment. Another advantage is that the brake belt ( ) always rests uniformly against the brake drum ( ) over its entire circumference, even, for example, when the brake drum ( ) expands due to heating.