BRAKE PAD AND CALIPER DEVICE

摘要

A brake pad (10) is provided with a friction material (12) which is capable of braking a rotating disc (200) and which is provided on the disc (200) side, and a back plate (11) joined to the other side of the friction material (12) relative to the disc (200). The brake pad (10) is characterized in that the back plate (11) has, on the surface on the friction material (12) side, a plurality of non-linear ridges (111) and/or a plurality of non-linear grooves (112) formed so that the longitudinal direction is oriented along the direction of rotation of the disc (200), and the friction material (12) is joined to the back plate (11) so as to be in intimate contact with the surface defining each of the ridges (111) and/or grooves (121) and with the surface of the back plate (11) on the friction material (12) side. The average height of the ridges (111) or the average depth of the grooves (112) is preferably 2-6 mm. It is thereby possible to provide a highly durable brake pad (10) having high joining strength between the friction material (12) and the back plate (11), and a caliper device provided with the brake pad (10).