RACK TYPE ELECTRIC POWER STEERING APPARATUS

The present invention relates to a steering column of a vehicle. According to the present invention, the tensional force of a belt becomes higher as the distance between a motor shaft and a rack bar becomes larger because a second inclined portion of a support body passing through a guide hole is moved upwards along a first inclined portion to be inserted into a coupling recess, and accordingly, noise and damage to the belt can be prevented. If the support body is inserted into the coupling recess by a third inclined portion of a coupling recess and a motor housing is moved upwards, the tensional force of the belt becomes higher as the distance between the motor shaft and the rack bar becomes larger and, accordingly, noise and damage to the belt can be prevented. 本发明提供种车辆转向柱。根据本发明，因为穿过引导孔的支撑体的第二倾斜部沿着欲被插入连接凹槽的第倾斜部被向上移动，使电动机轴杆及齿条杆之间的距离变大，因而皮带的张力变高，因此噪音及对所述皮带的损坏可被防止。如果所述支撑体通过连接凹槽的第三倾斜部被插入至连接凹槽且电动机壳体被向上移动，则由于所述电动机轴杆及所述齿条杆之间的距离变大，使所述皮带的张力变高，因此噪音及对所述皮带的损坏可被防止。