BRAKE FORCE ACQUISITION DEVICE

摘要

PROBLEM TO BE SOLVED: To improve a brake force acquisition device by reducing compressive force received to a compressive force detecting part, by arranging at least two by juxtaposing the compressive force detecting part for detecting the compressive force in the orthogonal direction to a contact plane of a friction surface of a brake rotating body. SOLUTION: When a load acts since a brake shoe abuts on an anchor 16, compressive force detecting elements 46 and 48 are arranged by being juxtaposed in the orthogonal direction to a friction surface of a drum. The compressive force detecting elements 46 and 48 are gripped by a load action part 50 and an anchor body 62 being a rigid body. The load acting on the load action part 50 is received by the compressive force detecting elements 46 and 48 and connecting bodies 54 and 56. Thus, the load acting on the load action part 50 can be acquired as the size corresponding to the sum of compressive force detected by the compressive force detecting elements 46 and 48, and a dislocation quantity (x) from a reference point P of a load action point Q can be acquired as the size corresponding to a difference in the compressive force detected by the compressive force detecting elements 46 and 48. COPYRIGHT: (C)2011,JPO&INPIT