Elevator excessive speed protective equipment

Application Number: 00119247
Application Date: 2000.06.28
Publication Number: 1295025
Publication Date: 2001.05.16
Priority Information: 1995/7/26 JP 190922/1995
International: B66B5/02
Applicant(s) Name: Mitsubishi Electric Corp.
Inventor(s) Name: Yunomura Kei;Ito Kazumasa
Patent Agency Code: 11038
Patent Agent: du rixin
Abstract An elevator overspeed protection apparatus includes a conductor which is set along the car driving direction in the elevator passage; a first magnetic path which is adjacent to the conductor and passing through the magnetic track of the conductor; a switching apparatus, switching the force acting to the first magnetic path, generated by the vortex in said conductor when the car is running to the shift of the first magnetic path; a braking apparatus, stopping the car corresponding to the shift of the first magnetic path; a retaining apparatus for retaining the air gap of the first magnetic path disposed on the opposite flank of the conductor; and a shift absorption mechanism for absorbing the shift of car or balance block of which the first magnetic path in the horizontal direction corresponds to said first magnetic path.