STAIRCASE FOR CAB OF TRANSPORT FACILITY, PREFERABLY TIMBER INDUSTRY VEHICLE Russian patent published in 2012 - IPC B60R3/02 E06C5/06 

FIELD: transport.

SUBSTANCE: staircase for cab of transport facility contains leverage located in the area of door opening under the cab. Leverage has parallel longitudinal links which are located in vertical plane of vehicle frame being transversally oriented relative to longitudinal axis. The mentioned links are pivotally connected with tiered horizontally oriented links with steps being installed on them and forming flight. Leverage is connected with hydraulic power cylinder. The first relative to cab door opening longitudinally oriented link is made as bracket located on vehicle frame. Bracket height is equal to length of the second longitudinally oriented link. In the upper portion of bracket, hydraulic cylinder is installed which is connected with horizontally oriented link of bottom stair step in the area between longitudinally oriented links of leverage.

EFFECT: simplified design and higher reliability of staircase.

2 cl, 4 dwg