Disk brake

The strength and rigidity of pad springs are increased with a simple structure to prevent deformation and so forth of the pad springs caused by external force. A mounting member 1 is provided with pad springs 8 for resiliently supporting friction pads 7 . Each pad spring 8 has guide plates 9 , a connecting plate 10 , an engagement plate 11 , radially urging portions 12 , circumferentially urging portions 13 , reinforcement 15 , etc. The reinforcement 15 includes a rectilinear reinforcement 15 A formed on a flat plate portion 10 A of the connecting plate 10 by embossing, for example, and oblique reinforcements 15 B formed on joint portions 10 B of the connecting plate 10 . Thus, the joint portions 10 B and so forth of the pad springs 8 can be prevented from being deformed by external force when the brake is activated or during assembling operation, for example, and hence it is possible to prevent positional displacement of the guide plates 9 , etc. that would otherwise be caused by the deformation of the joint portions 10 B.