| 摘要 |
Construction of a steering-column apparatus is achieved that is capable of keeping the force required for expanding or contracting the portion 33 where an inner column 10a fits and is supported small, and improves the ease of operation for adjusting the position of a steering wheel 4. A split 19a that is provided in the bottom surface of the front section of an outer column 11a comprises: a main slit section 36 that extends in the axial direction; and a sub slit section 37 that is formed in the circumferential direction of the front-end section of the main slit section 36, with the front-end section of the main slit section 37 being open on the edge on the rear side thereof. The length in the circumferential direction from the main slit section 36 to one end section in the circumferential direction of both end sections in the circumferential direction of the sub slit section 37, is longer than the length in the circumferential direction from the main slit section 36 to the other end section in the circumferential direction, so the rigidity in the width direction of one half section in width direction of the outer column 11a where one supported section 20a is located, is less than the rigidity in the width direction of the other half section in the width direction where another supported section 20b is located. |
