Patent ID: 7699328

Claim:
A cab for a mobile machine comprising, in combination: a platform having a top side and an underside, with a through-hole extending through the platform between the top side and the underside; a plurality of partitions mounted on the top side of the platform and defining an enclosure for receiving an operator, with one of the plurality of partitions including a door allowing access to and from the enclosure; a leg slideably received in the through-hole, with the leg including a lower end extending downward through the through-hole of the platform; a spring including an upper end and a lower end, with the leg including an upper end fixed to the lower end of the spring, with the upper end of the spring being fixed to the enclosure spaced from the through-hole, with the spring being stretchable in a vertical direction perpendicular to the platform; and a step mounted to the lower end of the leg and extending in a horizontal direction parallel to the platform, with the leg being movable between a retracted position and an extended position in which a spacing between the step and the underside of the platform is larger than that in the retracted position, with the leg being biased by the spring from the extended position to the retracted position, and with the leg being releasably latched in the extended position against bias of the spring, and with the step being adapted to be stepped on by the operator to move the leg from the retracted position to the extended position to thereby allow the operator to exit the enclosure via the door by stepping on the step, and with the leg in the extended position being adapted to be unlatched by the operator in the enclosure to return to the retracted position under action of the spring.