Door interlocking system

Details Door interlocking system Door interlocking system

2007-12-18

2007-12-18

Mackey, Patrick (Department: 3653)

Elevator, industrial lift truck, or stationary lift for vehicle

With barrier for regulating access to load support

Including barrier mounted at landing

C187S324000, C187S333000, C187S334000, C049S351000, C160S084090

Reexamination Certificate

active

11033091

ABSTRACT:
A door panel position control mechanism for a multiple panel horizontal sliding door assembly of a freight elevator landing. The mechanism comprises a multiple node scissors linkage that is configured to be easily installed and initially adjusted and which has its parts symmetrically balanced about a vertical plane such that excessive eccentric loading on the components is reduced and a long service life is obtained with reduced wear and a reduced need for periodic adjustment.

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Patent Abstract of Japan, vol. 016, No. 464 (M-1316), Sep. 28, 1992 & JP 04 164797 A (Toshiba Corp.) Jun. 10, 1992.

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