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:
Oct. 29, 2019
Filed:
Nov. 17, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Peter Kimmich, Steinenbronn, DE;
Wolfram Schock, Ohmenhausen, DE;
Robert Bosch GMBH, Stuttgart, DE;
Abstract
A drive system for a pedal-operable vehicle, including a drive motor, pedals on pedal arms, a bottom bracket spindle on which the pedal arms are mounted, and a drive mechanism for transferring drive energy. A clearance is present in a transfer path between a pedal arm and a drive wheel, rotating with the bottom bracket spindle, of the drive mechanism. The system includes a return device with which the clearance-affected parts are transferable, at or below an idle pedal force within their clearance with respect to one another, into an idle position in which the clearance-affected parts assume a predefined relative position; the clearance-affected parts being removable, within the clearance, from the idle position by way of pedal force above the idle pedal force against the action of the return device; and information as to whether the clearance-affected parts are in an idle position being furnishable as electrical signals.