Patent ID: 7152501
Filing Date: 2006-12-26
Classification: B62M,Y10T

Abstract:
1. A bicycle crank fixing structure comprising: a crank axle having a first axial end with a recess section formed on an outer circumferential surface thereof; a crank including a crank axle mounting section with a mounting bore non-rotatably coupled to the first axial end of the crank axle and a slit extending radially from the mounting bore, the crank being disposed with respect to the crank axle so that the slit of the crank is aligned with the recess section of the crank axle; a first screw member disposed in the crank axle mounting section of the crank so that the first screw member perpendicularly intersects with the slit of the crank to fasten the crank on the crank axle by adjusting a width of the slit; and a plate-shaped retaining member disposed in the slit of the crank, the retaining member having a retaining projection that is movable with respect to the crank between a release position in which the retaining projection is disengaged from the recess section and an engagement position in which the retaining projection is engaged from the recess section when the first screw member is partially tightened, the retaining projection engaging the recess section of the crank axle to prevent the crank from moving axially off of the first axial end of the crank axle when the retaining projection is in the engagement position and when the first screw member is partially tightened.