Swinging-and-sliding door for vehicles, especially mass-transit

Details Swinging-and-sliding door for vehicles, especially mass-transit Swinging-and-sliding door for vehicles, especially mass-transit

1993-09-10

1995-06-06

Purol, David M.

Flexible or portable closure, partition, or panel

Miscellaneous and processes of using

160DIG8, 49209, 49221, A47H 3300

Patent

active

054213959

ABSTRACT:
A swinging-and-sliding door for vehicles which opens in two mutually perpendicular steps, a first step wherein it bends out of a doorway-closed position and into a ready-to-slide position and a second step wherein it slides aside horizontally into a doorway-open position. The door is mounted with a roller carriage and a horizontal track fastened to the inside of the door essentially halfway up. The roller carriage is mounted in a doorway immediately adjacent to a vertical edge of a doorframe opposite to the leading edge of the door in the closed position and on the same level as the track. The roller carriage travels back and forth in the track and in and out in the same direction as the first door-opening step on a carriage holder. The door is at least to some extent flexible in the direction it moves in during the first door-opening step and is subjected to tension such that the middle of the door will resiliently bend to a prescribed extent in a direction opposite that of the first door-opening step.

REFERENCES:
patent: 2552356 (1951-05-01), Weigele
patent: 3903648 (1975-09-01), Maneck
patent: 3994094 (1976-11-01), Marzocco
patent: 4157846 (1979-06-01), Whitcroft
patent: 4495729 (1985-01-01), Britzke et al.
patent: 4869544 (1989-09-01), Anwyll et al.
patent: 4932715 (1990-06-01), Kramer

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