| 摘要 |
PROBLEM TO BE SOLVED: To realize two functions of service brake and parking brake by one brake device, to reduce a size and a weight of the device, and to improve a degree of freedom in the shape of a knuckle.SOLUTION: A piston opposed-type caliper 9 is provided with a first cylinder to which a first piston operated in service brake is fitted, and a second cylinder 20 to which second outer and inner both pistons 13a, 13b operated in the service brake and parking brake are fitted, and which is opened at axial both sides. A floating type caliper 10 is axially displaceably supported with respect to the piston opposed type caliper 9 in a state of crossing a pair of pads 11a, 11b and the second cylinder 20 from a radial outer part. |
