Entraining apparatus for elevator doors

Details Entraining apparatus for elevator doors Entraining apparatus for elevator doors

1995-04-13

1996-11-19

Keenan, James W.

Elevator, industrial lift truck, or stationary lift for vehicle

With barrier for regulating access to load support

Includes motor or motor driven linkage for shifting barrier

187330, B66B 1312

Patent

active

055753574

ABSTRACT:
An entraining apparatus for the coupling, unlatching and entraining of elevator shaft doors includes an entraining parallelogram which is movable laterally and is actuated by a door drive on an elevator car. The entraining parallelogram has two vertically extending entraining members, one entraining member being fixedly connected to a slide member horizontally movable in a guide (9) and pushed into a neutral abutment setting by a compression spring during the elevator travel. An arresting parallelogram includes a movable coulisse and the fixed entraining member coupled to an upper link having a pawl lever with a pawl. Upon arrival at a stopping floor, the entraining apparatus is pushed by a pair of shaft door rollers into a centered position and the left shaft door roller moves the coulisse inwardly to engage the pawl between teeth of a comb on the slide member and arrest the entraining apparatus. During travel of the car, the compression spring pushes the entraining apparatus to the neutral position. An eccentric can be rotated to prevent the coulisse from moving the pawl into the arresting position in order to permit adjustment operations on the door drive.

REFERENCES:
patent: 1326440 (1919-12-01), Chaudoir
patent: 3605952 (1971-09-01), Lusti
patent: 3783977 (1974-01-01), Voser
patent: 4108283 (1978-08-01), Mangel
patent: 4313525 (1982-02-01), McDonald
patent: 4947964 (1990-08-01), Husmann
patent: 5246089 (1993-09-01), Husmann et al.

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