Patent ID: 8128016

Claim:
A torsion bar support structure of a seat belt retractor comprising a housing constituting a main body of the seat belt retractor, a guide drum rotatably coupled to the housing, a torsion bar inserted into the guide drum, a base member fixed to one side of the housing, a locking member installed to the other side of the housing, and a cylinder accommodating a piston therein to rotate a gear member connected to the base member, the structure further comprising: a bearing member coupled to the gear member, wherein the locking member has a cover fixing shaft projecting from one end thereof, and a cap provided on the end of the cover fixing shaft, one end of the torsion bar is supported by the bearing member and another end of the torsion bar is supported by the cap through the medium of the locking member, and a connector having a roller engagement part and a torsion bar coupling pipe extending toward one side of the roller engagement part to be fixed to the torsion bar, wherein the base member comprises clutch rollers installed therein, and the clutch rollers are meshed with an internal gear formed at an inner periphery of the roller engagement part.