Disc brake
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTomohiro Yokoyama
Life of this patent
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Abstract
A disc brake of a floating type includes: an inner pad and an outer pad located on opposite sides of a rotor; a pressing device that presses the inner pad and the outer pad against the rotor; and a housing holding the pressing device. The pressing device includes: a first pressing member movable toward the rotor; a second pressing member movable away from the rotor; and a frame held by the housing via engageable portions movably relative to the housing in a direction parallel with a rotation axis of the rotor. The engageable portions are spaced apart from each other in a circumferential direction of the rotor. The frame is moved with movement of the second pressing member to press the outer pad against the rotor. Each of the engageable portions has a labyrinth structure.
Claims5
A disc brake of a floating type, comprising:
- an inner pad and an outer pad respectively located on opposite sides of a rotor rotatable with a wheel;
- a pressing device configured to press the inner pad and the outer pad against the rotor;
- and
- a housing mounted on a non-rotating member and holding the pressing device,
- wherein the pressing device comprises:
- a first pressing member movable toward the rotor;
- a second pressing member movable away from the rotor;
- and
- a frame held by the housing via at least one pair of engageable portions so as to be movable relative to the housing in a direction parallel with a rotation axis of the rotor, the pair of engageable portions being spaced apart from each other in a circumferential direction of the rotor, the frame being configured to be moved with movement of the second pressing member to press the outer pad against the rotor,
- wherein each of the at least one pair of engageable portions has a labyrinth structure, and
- wherein the at least one pair of engageable portions comprise:
- at least one pair of engageable protrusions provided at one of the housing and the frame and spaced apart from each other in the circumferential direction;
- and
- at least one pair of engageable recessed portions provided at the other of the housing and the frame and spaced apart from each other in the circumferential direction, and
- wherein each of the at least one pair of engageable recessed portions comprises a bottom surface, a pair of wall surfaces, a narrow portion, and a wide portion, and the narrow portion and the wide portion form a stepped shape.
A disc brake of a floating type, comprising:
- an inner pad and an outer pad respectively located on opposite sides of a rotor rotatable with a wheel;
- a pressing device configured to press the inner pad and the outer pad against the rotor;
- and
- a housing mounted on a non-rotating member and holding the pressing device,
- wherein the pressing device comprises:
- a first pressing member movable toward the rotor;
- a second pressing member movable away from the rotor;
- and
- a frame held by the housing via at least one pair of engageable portions so as to be movable relative to the housing in a direction parallel with a rotation axis of the rotor, the pair of engageable portions being spaced apart from each other in a circumferential direction of the rotor, the frame being configured to be moved with movement of the second pressing member to press the outer pad against the rotor,
- wherein the at least one pair of engageable portions comprise:
- at least one pair of engageable protrusions provided at one of the housing and the frame and spaced apart from each other in the circumferential direction;
- and
- at least one pair of engageable recessed portions provided at the other of the housing and the frame and spaced apart from each other in the circumferential direction, and
- wherein each of the at least one pair of engageable recessed portions comprises a bottom surface, a pair of wall surfaces, a narrow portion, and a wide portion, a distance between the pair of wall surfaces is greater in the wide portion than in the narrow portion, and the narrow portion and the wide portion form a stepped shape.
Dependencies are inferred from the claim text.