Patent ID: 7562932
Filing Date: 2009-07-21
Classification: B62J

Abstract:
1. A seat support structure of a bicycle, comprising: a seat supporting tube; a seat supporting rod received in the seat supporting tube; a lower lateral side of the seat supporting rod having a first inclined surface so that a lower end of the seat supporting rod has a smaller cross area; the seat supporting rod being formed with an upper hole and a lower tapered hole; a smaller end of the lower tapered hole being communicated to the upper hole; the upper hole and lower tapered hole penetrating through the seat supporting rod; the lower tapered hole being communicated to the first inclined surface; a tightening assembly received in the seat supporting tube; the tightening assembly having a tightening unit, and a stud; the tightening unit having a second inclined surface which is corresponding to the first inclined surface; in assembly, the second inclined surface being installed to be adhered to the first inclined surface; the tightening unit having a stud hole corresponding to the lower tapered hole; the stud hole being a tapered hole; a small end of the stud hole being opened at the second inclined surface; a shape of the outer surface of the tightening unit being matched to an inner surface of the seat supporting tube; and wherein in assembly, a screw post of the stud passes through the upper hole, the lower tapered hole, and the stud hole so as to combine the tightening assembly to the seat supporting rod; and the seat supporting rod and the tightening assembly are placed within the seat supporting tube.