BRAKE PAD AND CALIPER DEVICE

摘要

A brake pad 10 can control rotating of a disc 200. The brake pad 10 includes a friction material 12 provided on a side of the disc 200 and a back plate 11 bonded to the friction material 12 on an opposite side of the disc 200. The back plate 11 has a plurality of non-linear first ridges 111 and/or a plurality of non-linear first grooves 113 and a plurality of second ridges 112 and/or a plurality of second grooves 114 each formed on a surface thereof positioned on a side of the friction material 12 so that a longitudinal direction of the first ridges 111 and/or the first grooves 113 corresponds to a first direction and a longitudinal direction of the second ridges 112 and/or the second grooves 114 corresponds to a second direction intersecting the first direction. The friction material 12 is bonded to the back plate 11 so as to make close contact with a surface defining each first ridge 111 and each second ridge 112 and/or each first groove 113 and each second groove 114 and the surface of the back plate 11 positioned on the side of the friction material 12. An average height of the first ridges 111 and the second ridges 112 or an average depth of the first grooves 113 and the second grooves 114 is preferably in the range of 2 to 6 mm. This makes it possible to provide a brake pad 10 having high bonding strength between the friction material 12 and the back plate 11 and excellent durability, and a caliper device provided with the brake pad 10.