Opposed piston type disc brake
First Claim
Patent Images
1. An opposed piston type disc brake comprising:
- a caliper integrating outer and inner body portions and a pair of connecting portions, wherein the outer and inner body portion are arranged by interposing a rotor between the outer and inner body portions, and both end portions of the outer and inner body portions in a rotational direction of the rotor are connected by the pair of connecting portions at positions outward in a radial direction of the rotor from an outer peripheral edge of the rotor;
a plurality of cylinders respectively provided to the outer and inner body portions so as to be opposed to each other;
a plurality of pistons fitted to the respective cylinders so as to be displaceable in an axial direction of the rotor;
two pads respectively supported by the outer and inner body portions so as to be displaceable in the axial direction;
a coupling member configured to bridge the outer and inner body portions at portions outer in the radial direction more than the outer peripheral edge of the rotor so as to hamper the outer and inner body portions from being displaced in directions of being separated from each other;
a plurality of pad supporting portions configured to hamper the two pads from being displaced to inner sides in the radial direction; and
a pair of torque receiving pins arranged at portions outer in the radial direction more than the outer peripheral edge of the rotor so as to be opposed to two end edges of pressure plates of the two pads in the rotational direction and configured to bridge the outer and inner body portions,wherein the coupling member is a bridge portion integrally provided to the caliper at a single portion on a middle portion of the outer and inner body portions in the rotational direction.
1 Assignment
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Accused Products
Abstract
A coupling member configured to bridge outer and inner body portions 3c, 4c in a state of hampering the outer and inner body portions 3c, 4c from being displaced in directions of separating the outer and inner body portions 3c, 4c is constituted by a bridge portion 20a integral with a caliper 5c including the outer and inner body portions 3c, 4c. Further, a brake torque applied to the inner and outer pads 11a, 12a is supported by outer side coupling pins 13a, 13a configured to bridge two end portions of the outer and inner body portions 3c, 4c.
20 Citations
9 Claims
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1. An opposed piston type disc brake comprising:
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a caliper integrating outer and inner body portions and a pair of connecting portions, wherein the outer and inner body portion are arranged by interposing a rotor between the outer and inner body portions, and both end portions of the outer and inner body portions in a rotational direction of the rotor are connected by the pair of connecting portions at positions outward in a radial direction of the rotor from an outer peripheral edge of the rotor; a plurality of cylinders respectively provided to the outer and inner body portions so as to be opposed to each other; a plurality of pistons fitted to the respective cylinders so as to be displaceable in an axial direction of the rotor; two pads respectively supported by the outer and inner body portions so as to be displaceable in the axial direction; a coupling member configured to bridge the outer and inner body portions at portions outer in the radial direction more than the outer peripheral edge of the rotor so as to hamper the outer and inner body portions from being displaced in directions of being separated from each other; a plurality of pad supporting portions configured to hamper the two pads from being displaced to inner sides in the radial direction; and a pair of torque receiving pins arranged at portions outer in the radial direction more than the outer peripheral edge of the rotor so as to be opposed to two end edges of pressure plates of the two pads in the rotational direction and configured to bridge the outer and inner body portions, wherein the coupling member is a bridge portion integrally provided to the caliper at a single portion on a middle portion of the outer and inner body portions in the rotational direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9)
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8. An opposed piston type disc brake comprising:
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a caliper integrating outer and inner body portions and a pair of connecting portions, wherein the outer and inner body portion are arranged by interposing a rotor between the outer and inner body portions, both end portions of the outer and inner body portions in a rotational direction of the rotor are connected by the pair of connecting portions at positions outward in a radial direction of the rotor from an outer peripheral edge of the rotor, and pad holding portions are formed by portions of side faces of the outer and inner body portions opposed to each other between the two connecting portions; a plurality of cylinders respectively provided to the outer and inner body portions so as to be opposed to each other; a plurality of pistons fitted to the respective cylinders so as to be displaceable in an axial direction of the rotor; two pads respectively supported by the outer and inner body portions so as to be displaceable in the axial direction; a pad supporting portion for holding the two pads at the respective pad holding portions and hampering the two pads from being displaced in the radial direction; and a torque supporting portion for transmitting a brake torque applied to the two pads in braking to the caliper by way of pressure plates of the two pads to be supported by the caliper, wherein the torque supporting portion and the pad supporting portion are constituted by a pair of coupling pins configured to bridge two end portions of the pad holding portions of the outer and inner body portions in the rotational direction of the rotor and at positions on outer sides in the radial direction of the outer peripheral edge of the rotor, and pairs of recess portions respectively formed on the pressure plates at both end edge portions of the pressure plates in the rotational direction at positions on outer sides in the radial direction of the outer peripheral edge of the rotor, wherein the torque supporting portion transmits the brake torque to the caliper by an engagement between depth end faces of the respective recess portions and outer peripheral faces of the two coupling pins, and the pad supporting portion holds the pads by an engagement between the outer peripheral faces of the two coupling pins and two inner side faces of the respective recess portions.
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Specification