PURPOSE: A rigid-bar bracket structure is provided to improve the durability of a frame and the work efficiency by rapidly executing a displacement task when a location of a clamp part is controlled. CONSTITUTION: A fixing part(10) comprises a post. A hinge part(20) includes a bearing, a shaft, and a swing plate. The bearing is fixed to the exterior of the post. One end of an insulator part(30) is fixed to the swing plate. A frame part(40) is fixed to the other end part of the insulator part. The frame part is made of a pair of frames. A clamp part(50) clinches a rigid-bar bracket structure(60) on the frame part. The clamp part is displaced in a longitudinal direction of the frame part.
