Yu-Jen Chien

Title: Innovations by Yu-Jen Chien in Bicycle Technology

Introduction

Yu-Jen Chien is a notable inventor based in Yi-Lan, Taiwan. He has made significant contributions to bicycle technology, particularly in the area of front derailleurs. His innovative designs aim to enhance the functionality and efficiency of bicycles.

Latest Patents

Yu-Jen Chien holds a patent for a front derailleur for a bicycle. This invention discloses a mechanism that shifts a chain via a chain guide between at least two sprockets attached to the bicycle frame. The front derailleur includes a wire that extends through a stopper attached to the frame, which transmits tension. An actuating link is connected to the wire, responding to the tension to drive the chain guide, allowing the chain to shift between sprockets. Additionally, a wire guide is mounted on the seat tube of the frame, connecting with the wire between the stopper and the actuating link. This design straightens the wire parallel to the seat tube, thereby reducing friction between the wire and the stopper.

Career Highlights

Throughout his career, Yu-Jen Chien has focused on developing innovative solutions for bicycle mechanics. His work has contributed to advancements in cycling technology, making rides smoother and more efficient for cyclists.

Collaborations

Yu-Jen Chien has collaborated with Ching-Huan Tseng, working together to enhance bicycle technology and improve the performance of their inventions.

Conclusion

Yu-Jen Chien's contributions to bicycle technology, particularly through his patented front derailleur, showcase his innovative spirit and dedication to improving cycling experiences. His work continues to influence the industry and inspire future advancements in bicycle design.