Disc brake device and caliper slide mechanism

A disc brake device comprising:

• a disc rotor which rotates around a rotational axial line;
• a friction pad which faces a friction surface of the disc rotor;
• a caliper which is capable of pressing the friction pad to the friction surface of the disc rotor:
• a mounting in which the caliper is provided;
• and
• a caliper slide mechanism which supports the caliper on the mounting in a manner enabling slide movement via a slide pin inserted in a guide section provided in a hole section of the caliper or the mounting,
• wherein the caliper slide mechanism has a variable mechanism which makes a permissible swing angle of the slide pin with respect to a slide movement direction variable in response to a braking action along with slide movement of the caliper,
• wherein the guide section has two support parts that support both end sections of the slide pin to guide slide movement of the slide pin, and
• wherein the variable mechanism makes the permissible swing angle by changing a clearance between at least one of the two support parts of the guide section and the slide pin and makes the clearance in the braking state where the friction pad is pressed to the friction surface of the disc rotor wider than the clearance in the non-braking state where the friction pad is separated from the friction surface of the disc rotor.

A disc brake device comprising:

• a disc rotor which rotates around a rotational axial line;
• a friction pad which faces a friction surface of the disc rotor;
• a caliper which is capable of pressing the friction pad to the friction surface of the disc rotor;
• a mounting in which the caliper is provided;
• and
• a caliper slide mechanism which supports the caliper on the mounting in a manner enabling slide movement via a slide pin inserted in a guide section provided in a hole section of the caliper or the mounting,
• wherein the caliper slide mechanism has a variable mechanism which makes a permissible swing angle of the slide pin with respect to a slide movement direction variable in response to a braking action along with slide movement of the caliper,
• wherein the guide section has two support parts that support both end sections of the slide pin to guide slide movement of the slide pin, and
• wherein the variable mechanism makes the permissible swing angle variable by changing rigidity of at least one of the two support parts of the guide section and makes the rigidity in the braking state where the friction pad is pressed to the friction surface of the disc rotor lower than the rigidity in the non-braking state where the friction pad is separated from the friction surface of the disc rotor.