Touru Tsuda

Title: Touru Tsuda and His Pneumatic Safety Tire Invention

Introduction

Touru Tsuda is an inventor associated with Higashimurayama, Japan, and Bridgestone Corporation. His recorded patent concerns a pneumatic safety tire designed to support a vehicle and retain its position on the rim during run-flat travel. Tsuda is credited with 1 patent.

Latest Patents

Tsuda’s listed patent, “Pneumatic Safety Tire,” addresses two challenges that can arise when a tire is punctured: maintaining load-supporting capability and preventing the tire bead from coming off the rim seat.

The design uses crescent-shaped reinforcing rubber layers, with their thickest portions at the tire sidewalls, alongside beak-shaped, hard-rubber members that secure the tire to the rim. Their annular bonding surfaces are angled axially inward or outward in a wedge-like arrangement. The patent also describes simultaneously extrusion-forming the reinforcing layers and rim-fixed members before green-tire formation. This approach is intended to reduce creases during manufacturing and cracks near the bonding surfaces during run-flat use.

Career Highlights

The available information associates Tsuda’s tire invention with Bridgestone Corporation. The patent reflects an engineering focus on tire safety, structural support, and manufacturing considerations.

Collaborations

Hisao Ushikubo and Ichiro Takahashi are identified as Tsuda’s coworkers. The supplied information does not specify their roles in the patent or whether they collaborated directly on its development.

Conclusion

Touru Tsuda’s recorded patent presents a pneumatic safety tire design intended to improve load support and help keep the tire secured to its rim during run-flat travel.