Elevator door drive

Details Elevator door drive Elevator door drive

1993-11-01

1995-01-03

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

With barrier for regulating access to load support

Including barrier mounted at landing

187330, 187337, 49 40, 49118, 49122, B66B 1306

Patent

active

053777832

ABSTRACT:
An elevator drive, which moves an arcuate car door attaching to a support that rotates about an axis, has a motor having an output, an arm attached to the output, and a linkage having a first coupling allowing compound motion attached to the arm and a second coupling allowing compound motion attached to the support, the door moving as the arm rotates in response to motion of the output.

REFERENCES:
patent: 939919 (1909-11-01), Malocsay
patent: 955540 (1910-04-01), Parkhill et al.
patent: 1273463 (1918-07-01), Dawes
patent: 1874562 (1932-08-01), Mariotti
patent: 4693033 (1987-09-01), Tauzin
patent: 4785579 (1988-11-01), Sugiyama et al.
iCAR-Creation & Design De Produits, pp. 24-58.

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