Tatsumi Uejima

Title: Innovations of Tatsumi Uejima

Introduction

Tatsumi Uejima is a notable inventor based in Akiruno, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the design of oil pump mechanisms for chain saws. His innovative approach has led to the development of a unique mechanism that enhances the efficiency of chain saws.

Latest Patents

Uejima holds a patent for an oil pump mechanism specifically designed for lubricating saw chains. This mechanism is integrated into a chain saw that features a centrifugal clutch. The oil pump mechanism is activated in synchronization with the centrifugal clutch, ensuring that lubricating oil is supplied to the saw chain effectively. The design includes a crankshaft, a clutch shoe mounted on the centrifugal clutch, and a worm that is fitted on the crankshaft. The worm is made of self-lubricating resin on the inner portion and wear-resistant metal on the outer portion. This innovative design allows for efficient lubrication, which is crucial for the performance and longevity of the saw chain.

Career Highlights

Uejima has dedicated his career to advancing technology in the field of power tools. His work at Kioritz Corporation has been instrumental in developing products that meet the needs of both professionals and consumers. His patent reflects his commitment to improving the functionality and reliability of chain saws.

Collaborations

Uejima has collaborated with Kunimune Kawamura, a fellow innovator in the industry. Their partnership has fostered a creative environment that encourages the development of new technologies and solutions in the field of mechanical engineering.

Conclusion

Tatsumi Uejima's contributions to the invention of oil pump mechanisms for chain saws demonstrate his innovative spirit and dedication to engineering excellence. His work continues to influence the industry and improve the performance of power tools.