Apparatus for damping oscillations in elevator cars

Details Apparatus for damping oscillations in elevator cars Apparatus for damping oscillations in elevator cars

1989-07-12

1991-04-09

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

248581, 248603, B66B 900

Patent

active

050056719

ABSTRACT:
An apparatus for isolating horizontal shocks, generated in high speed elevators by inaccurately aligned guide rails, from the elevator car body includes spherical shock absorbers for supporting the bottom side of the car body in a car sling and centering elements with cooperating guide pins connected between the top side of the car body and the car sling. The lower portion of the car body can, in the case of horizontal shocks, execute a rolling deflection movement on the spherical shock absorbers to absorb these shocks. This deflection movement takes place against a centering spring tension, which is produced by a centering device attached to the bottom side of the car body and a guide pin extending through a guide sleeve of the centering device which pin is moved by the car body into an inclined position. An elastic filler element produces a centering counterforce on the upper portion of the guide pin. The lower portion of the guide pin extends into a ball shaped body which is supported in a spherical tensioning device. The spherical tensioning device has a clamping and release device for releasing and limiting the deflection movements. The release takes place during the travel of the car and the limiting takes place prior to the end of the trip in order to assure a safe functioning of the door coupling apparatus and of the door unlocking mechanism.

REFERENCES:
patent: 4113064 (1978-09-01), Shigeta et al.
patent: 4428460 (1984-01-01), Luinstra
patent: 4660682 (1987-04-01), Luinstra et al.
patent: 4713714 (1982-12-01), Gatti et al.

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