Caliper brake structure to facilitate changing of brake elements

A disc brake comprising:

• a stationary member adapted to be mounted on a vehicle on one side of a rotational disc;
• a caliper having a main body portion slidably mounted on the stationary member and having an arm portion straddling the circumferential edge of the disc;
• a pair of friction pads provided on opposite sides of the disc;
• a pin means secured to the stationary member and extending to the other side of the disc from the stationary member having one of said friction pads slidably mounted thereon on the other side of the disc, said main body portion of the caliper being movable toward the stationary member for forming a space between the arm portion and said friction pad through which said friction pad can be dismounted from the pin means;
• a brake actuating mechanism mounted on the main body portion of the caliper and including an actuating lever, said actuating lever being rotatable between a non-actuating position and an actuating position in a plane perpendicular to the axis of the disc and being displaceable toward the stationary member during actuation of the brake, the stationary member and the actuating lever having surfaces spaced in the direction of the axis of the disc;
• and a projection on one of said opposed surfaces and projecting toward the other surface and opposed to and abuttable against the other surface when said actuating lever is in the non-actuating position for preventing the main body portion of the caliper from being displaced toward the stationary member in the non-actuated condition of the brake for forming said space, and not opposed when said actuating lever is in the actuating position for allowing displacement toward said stationary member when said actuating lever is in the actuating position, whereby the friction pad cannot be dismounted from the pin when said actuating lever is in the non-actuating position.