Disk brake with return spring

A disk brake of a vehicle having a rotary disk, said disk brake comprising:

• a carrier secured to a non-rotating part of the vehicle;
• a pair of friction pads supported by said carrier at respective positions which face toward each other on opposite sides of the disk;
• a pair of pad guides attached to said carrier, said pad guides slidably guiding said friction pads, respectively;
• a caliper supported by said carrier and extending across said disk, said caliper actuatable to press said pair of friction pads against said disk;
• a linear return spring located between said caliper and one of said pad guides and having two end portions retained by said pair of friction pads, respectively, said linear return spring biasing said friction pads away from said disk, said linear return spring having a single bent portion intermediate said two end portions, said single bent portion lying entirely in a plane extending generally radially of said disk, said single bent portion extending radially inwardly with respect to said disk from portions of the spring adjacent said single bent portion, and the radially innermost part of said single bent portion with respect to said disk being located generally at the center between said friction pads;
• and
• an arresting member extending from said one of said pad guides and arresting said spring at the radially innermost part of said single bent portion, said arresting member being elongate and having a first portion extending radially outwardly of said disk at an inclination away from said friction pads and a second portion bent radially inwardly to form a hook that extends to the radially innermost part of said bent portion so as to retain said spring at said radially innermost part.