Ulrich Doerr

Title: Ulrich Doerr: Innovator in Bicycle Gear Technology

Introduction

Ulrich Doerr is a notable inventor based in Constance, Germany. He has made significant contributions to the field of bicycle gear technology, holding a total of four patents. His innovative designs focus on enhancing the functionality and efficiency of bicycle gear systems.

Latest Patents

One of Ulrich Doerr's latest patents is for a bottom-bracket gear. This invention includes an arrangement for actuating a shift element for a bottom bracket gearbox. It features a shift ring that is rotatably mounted in a housing and is assigned to a gearbox component. A shift pawl is included for locking or releasing the shift ring to facilitate gear shifting. The design also incorporates a support region that mechanically reinforces the housing, particularly along the contact region between the inner wall of the housing and the outer circumference of the shift ring. This contact region is defined by reaction forces acting when the shift ring is locked.

Another significant patent is for a gear set assembly and bicycle gearing system. This gear set arrangement includes a planetary assembly, a stationary component, and multiple brakes and freewheel clutches. The design allows for three ratios, enhancing the versatility and performance of bicycle gear systems.

Career Highlights

Ulrich Doerr is currently employed at ZF Friedrichshafen AG, a company known for its engineering excellence in automotive technology. His work at ZF has allowed him to focus on innovative solutions in bicycle gear technology, contributing to advancements in the industry.

Collaborations

Ulrich has collaborated with notable coworkers such as Peter Ziemer and Christoph Margraf. Their combined expertise has fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Ulrich Doerr's contributions to bicycle gear technology through his patents and work at ZF Friedrichshafen AG highlight his role as a key innovator in the field. His inventions continue to influence the design and functionality of bicycle gear systems, showcasing the importance of innovation in enhancing cycling experiences.