Reinforced bicycle brake caliper housing

摘要

A caliper for a disk brake consists of a housing having first and second brake pads mounted therein to receive a brake disk therebetween. At least one of the brake pads is advanced along an advancement axis towards the other brake pads by an actuator within the housing. During actuation the brake pads impart a compression force on a brake disk disposed therebetween which results in a tensile force in the housing parallel to the advancement axis. A reinforcing member operatively engages the housing to oppose the tensile force on the housing. A method of making a caliper housing as described above consists of forming the housing as a single piece of metal and preloading the housing with a compression force parallel to the advancement axis to oppose the tensile force. Preloading may be accomplished by forming a pair of bores in the housing radially space from the advancement axis with the bores having an internally threaded portion at one end. A screw is threadably engaged with each internally threaded portion with a screw head abutting the housing about the periphery of the bore opposite the internally threaded portion.