Stairlift

Details Stairlift Stairlift

1985-02-13

1986-12-09

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

414595, 198852, B66B 906

Patent

active

046275177

ABSTRACT:
The invention deals with a stairlift. An endless tubular guide track 1, 2, 3 comprises two parallel rails 1, 2 one above the other and two connecting parts 3. A series of transmission elements 5 may move inside the guide track and a toothed wheel 12, driven by a motor, can engage via a groove 4 in at least the top rail 1 with an aperture 9 in each transmission element 5. A carrying platform 13 is connected to carriage 14 whose top end is attached to a roller 19 which moves inside the top rail 1, and whose bottom end is conducted relative to the outer surface of the bottom rail 2. In order to improve the stability of the carriage during the negotiation of bends, the carriage consists of a parallelogram of vertical bars 15 and crossbars 16, said crossbars 16 being hingedly connected with the vertical bars 15 about a vertical and about a horizontal axis, and the carrying platform 13 being hingedly connected with two points 26 of the crossbars 16 located more or less directly above one another.

REFERENCES:
patent: 3262550 (1966-07-01), Kampfer
patent: 3623538 (1971-11-01), Wakabayashi et al.

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