Vehicle door arrangements

Details Vehicle door arrangements Vehicle door arrangements

1977-12-19

1979-02-27

Downey, Kenneth

Movable or removable closures

Operator for retractable sealing, guiding or locking strip

49321, E06B 728

Patent

active

041411790

ABSTRACT:
A vehicle door arrangement in which a lower edge part of the door is retractable upwards into the main part of the door prior to opening. This ensures that when the vehicle is standing alongside a platform, there is no risk of the bottom of the door fouling the platform. The arrangement is particularly suitable for slide and plug doors which move outwards and then alongside the vehicle when opening. Even if the bottom of the door is normally above the platform, the invention provides an essential safety feature to cope with situations where the vehicle is abnormally depressed, e.g. by excessive loading or suspension failure. Moreover, the invention enables the height of the interior floor of vehicle to be optimized with respect to platform level so as to enhance passenger safety and convenience, whereas with prior art rigid one-piece doors, clearance requirements dictated non-optimum floor heights.

REFERENCES:
patent: 2979327 (1961-04-01), Swangon et al.
patent: 3374821 (1968-03-01), White

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