Patent ID: 7322608

Claim:
A steering column apparatus comprising: a steering shaft having a rear end to which a steering wheel is secured; a steering column rotatably supporting said steering shaft and being of adjustable length in axial directions thereof together with said steering shaft; and a telescopic position fixing mechanism operable to fix said steering column to a desired length, wherein said steering column includes an outer column fixed on a vehicle body side and an inner column telescopically fitted in said outer column, said telescopic position fixing mechanism includes a lock housing disposed on said outer column, first and second press blocks, each slidably held within a bore of said lock housing, a bolt passing through said first and second press blocks, said first and second press blocks having said bolt non-threadably received therein so as to be slidable on said bolt and being movable toward and away from each other to press and release said inner column so as to fix and release the telescopic position of said steering column, and a press block driving mechanism operable to move said first and second press blocks toward and away from each other, said press block driving mechanism including a first cam formed on said second press block such that said first cam and said second press block constitute a single integral body, a rotatable cam facing said first cam, a fastening lever used for rotating said rotatable cam, interval regulating members which regulate an interval between said rotatable cam and said first press block, and a biasing device which biases said first press block and said second press block away from each other.