ES191118U - Rolling stand perfected. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved rolling support, which being constituted by a longitudinally extensible arm, in whose respective ends comprises respective transverse axes of wheels, is characterized essentially because at least one of said axes is constituted by the smooth cylindrical shank of a screw whose body passes through the branches of the fork that constitutes each end of said arm, inserting between said branches of the fork a series of free wheels separated from each other and with said branches by washers, while the head of said screw is joined to a part provided with a pin, parallel to the axis, which penetrates a hole in one of the branches of the fork, establishing the radial retention of the axle screw, said part being fixed to the head, articulated to the tail of a lever, whose tail constitutes an attack cam against the corresponding branch of the fork, while the tip of the screw receives a nut that determines na external topeaxil against the opposite branch of the fork, so that the manual actuation of the lever, selects at least two positions of said cam, correspondingly obtaining the compression between each other of the branches of the fork and its release, determining said compression the imprisonment between the wheels, performing their braking. (Machine-translation by Google Translate, not legally binding)