Patent ID: 9073598
Filing Date: 2015-07-07
Classification: B62M,Y10T

Abstract:
1. A foldable bicycle crank comprising: a crank having an outer end and an inner end, an axial hole being formed on the outer end, a vertical upper axial hole and a vertical lower axial hole being formed on the inner end, a flank mortise being formed between the upper and lower axial holes, a piercing hole being formed on a side of the flank mortise, a recess being formed on a sidewall of the inner end, a tenon being formed on the recess; a crank head, a pedal hole being formed on an outer side of the crank head, a vertical axial hole being formed on a body of the crank head, a recess being formed on a sidewall of the crank head, a tenon being formed on the recess; a slider, at least one mortise and a protrusion being formed on an inner wall of the slider, a downward room being formed on a top portion of the protrusion, an elastic member being placed into the room, a press button being located in the room and pushing against the elastic member, the protrusion being positioned into or passing through the piercing hole; and a central shaft passing through the vertical upper axial hole of the inner end, the axial hole of the outer end, and the vertical lower axial hole of the inner end, the crank head rotating around the central shaft by a limited angle.