Company Filing History:
Years Active: 2010
Title: Tsunehiro Higashinaka: Innovator in Elevator Safety Technology
Introduction
Tsunehiro Higashinaka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to elevator safety technology, holding 2 patents that enhance the reliability and safety of elevator systems. His work is particularly notable for its innovative approaches to emergency stop mechanisms.
Latest Patents
Higashinaka's latest patents include an emergency stop device for elevators and an emergency stop system for elevators. The emergency stop device features a pair of pivot levers that are pivotably provided to a car. Each pivot member is equipped with a plurality of wedges that can be brought into and out of contact with a car guide rail as the pivot member pivots. A connecting member links the pivot levers, and an electromagnetic actuator is mounted on the car to displace the connecting member in a reciprocating manner. This design allows for the effective pivoting of the pivot levers, ensuring that each wedge can engage with the car guide rail when necessary. The electrical actuator is activated by an actuating signal from a control panel's output portion.
The emergency stop system incorporates a governor sheave that moves in synchronism with the car's raising and lowering. A safety device is mounted on the car to brake it through displacement concerning the governor rope. A control device outputs an activation signal upon detecting any abnormal speed in the car. Additionally, a rope catching device near the governor sheave features an electromagnetic actuator that activates upon receiving the activation signal, restraining the governor rope to prevent accidents.
Career Highlights
Higashinaka is associated with Mitsubishi Electric Corporation, where he has been instrumental in developing advanced elevator technologies. His innovative designs have significantly improved safety standards in the industry.
Collaborations
Throughout his career, Higashinaka has collaborated with notable colleagues, including Hiroshi Kigawa and Mineo Okada. Their combined expertise has contributed to the successful development of various safety mechanisms in elevator systems.
Conclusion
Tsunehiro Higashinaka's contributions to elevator safety technology through his patents demonstrate his commitment to innovation and safety. His work continues to influence the industry, ensuring safer transportation for users worldwide.