Patent ID: 8528927
Filing Date: 2013-09-10
Classification: B62K

Abstract:
1. A steering apparatus for a vehicle, said steering apparatus comprising: a stem pipe pivotally mounted in a head pipe by upper and lower bearings, said stem pipe having an internally threaded surface extending axially on an upper portion thereof; a seal member for covering an upper surface of the upper bearing; a bottom bridge mounted on a lower end of said stem pipe; a top bridge mounted on an upper end of the stem pipe, said top bridge having a pipe insertion hole formed therein through which said stem pipe is inserted, said top bridge comprising an adjustable stem pipe slot-tightening mechanism for adjusting a diameter of the pipe insertion hole; and a fastening bolt threaded in said internally threaded surface of the stem pipe after mounting of the top bridge on the upper end of the stem pipe, thereby preloading the upper and lower bearings, wherein said fastening bolt has a step formed between a head and a threaded surface thereof, said step of the fastening bolt is fitted in said pipe insertion hole; wherein said stem pipe is inserted in said head pipe such that the upper and lower bearings are interposed therebetween; and wherein said stem pipe slot-tightening mechanism is operable to reduce a diameter of the pipe insertion hole, thereby fixing said top bridge to said stem pipe and said step of the fastening bolt.