TELESCOPIC SHAFT AND TELESCOPIC SHAFT FOR VEHICLE STEERING

摘要

PPROBLEM TO BE SOLVED: To lessen the slide resistance in a telescopic shaft applied to an intermediate shaft, etc., of a steering device of a vehicle. PSOLUTION: The intermediate shaft 5 is provided with an inner shaft 13 and an outer shaft 14 fitted with each other, and a plurality of balls 15 elastically sandwiched between axial grooves 16 and 17 in which both the shafts 13 and 14 are opposed to each other, forming a line 19. Each ball 15 can contact adjoining balls 15 respectively. The balls 15 contain a large ball 151 and a small ball 152 as different kinds of balls mutually differing in the outside diameter. PCOPYRIGHT: (C)2007,JPO&INPIT