Luggage with retractable wheel system

Details Luggage with retractable wheel system Luggage with retractable wheel system

1988-10-19

1990-04-10

Marmor, Charles A.

Land vehicles

Wheeled

Extensible

280 431, 280 4726, 16 29, 190 18A, B62B 112

Patent

active

049154028

ABSTRACT:
A case having at least one wheel mounted adjacent the case's floor, that wheel being retractable interiorly of the case into a storage position and extendable exteriorly of the case below the floor where the case can roll on the wheel. One feature is that a retract operator connected to the wheel is manually movable in one of generally parallel and normal directions relative to the floor in order to retract the wheel into the storage position, and a separate extend operator also connected to the wheel is manually movable in the other of the generally parallel and normally directions relative to the floor in order to extend the wheel into the use position. Another feature is that a single spring motor is connected with both the retract and extend operator in order to continually bias both those operators toward one of each operator's first and second operational positions. A third feature includes a pivotable drum to which the wheel is connected by a crank arm, the drum moving the wheel between storage and use positions in response to the operators and a drum spring motor, and a latch cooperable with the drum to hold it in that position to which the drum is not continually spring biased, that latch being continuously being biased toward the latching position by that same spring motor.

REFERENCES:
patent: Re17720 (1930-07-01), Whearg
patent: 1895677 (1933-01-01), Pinheiro
patent: 2002836 (1935-05-01), Rossi
patent: 2439660 (1948-04-01), Keil
patent: 2919138 (1959-12-01), Brower et al.
patent: 3014733 (1961-12-01), Higginbotham
patent: 4026569 (1977-05-01), Staal
patent: 4097955 (1978-07-01), Foge et al.
patent: 4217675 (1980-08-01), Haft
patent: 4273222 (1981-06-01), Lassimally et al.
patent: 4397062 (1983-08-01), Huang
patent: 4575109 (1986-03-01), Loudery
patent: 4773123 (1988-09-01), Yu

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