Jtekt Corporation

Koyo Machine Industries Company Limited

Kiyoshi Iwase

Mitsuharu Ozaki

Yasutaka Fukumoto

Osamu Honda

Daiki Yano

Kazuhide Honda

Futoshi Kamimura

Takashi Maeda

Naoki Fujimoto

A telescopic shaft includes: an inner shaft where a pair of recessed grooves that face each other in a direction perpendicular to an axis and extend in an axial direction are formed; an outer shaft where a pair of recessed grooves that face each other in the direction perpendicular to the axis and extend in the axial direction are formed; a plurality of rolling bodies that are disposed between each of the recessed grooves and the corresponding recessed groove so as to form a line in the axial direction; a pair of stoppers; and a buffer body unit. Each of the stoppers restricts falling of a rolling body at an end portion of the corresponding line from the corresponding recessed groove of the inner shaft. The buffer body unit integrally includes a pair of buffer bodies, and a connection portion that connects the pair of buffer bodies.

Telescopic shaft and steering system

Growing community of inventors

Nissin, Japan

Kiyoshi Iwase