Brake hydraulic pressure controller
It is possible to prevent occurrence of a resonance phenomenon of a hydraulic unit and to improve attachability/detachability of the hydraulic unit to/from a bracket. A support section ( 42, 43 ) includes: a fixture member ( 80 ) that is fixed to a housing ( 30 ) for a hydraulic unit ( 10 ); and a vibration absorbing member ( 75 ) that is interposed between the housing ( 30 ) and a bracket ( 41 ) and has a through-hole ( 75 a ) through which the fixture member ( 80 ) passes. The vibration absorbing member ( 75 ) includes two vibration absorbing members ( 75 B, 75 C, 75 D) having different rebound resilience from each other. In a state where the vibration absorbing member ( 75 ) is partially accommodated in a recessed section ( 47 ) of the bracket ( 41 ), the vibration absorbing member ( 75 ) is held between the housing ( 30 ) and the bracket ( 41 ).
1. A brake hydraulic pressure controller ( 70 ) comprising:
a hydraulic unit ( 10 ) that executes brake control by controlling a hydraulic pressure of a brake fluid to be supplied to a braking section ( 111 , 116 ); a bracket ( 41 ) that is attached to a vehicle body; and a support section ( 42 , 43 ) that is assembled to the bracket ( 41 ) to support the hydraulic unit ( 10 ), wherein
the support section ( 42 , 43 ) includes: a fixture member ( 80 ) that is fixed to a housing ( 30 ) of the hydraulic unit ( 10 ); and a vibration absorbing member ( 75 ) that is interposed between the housing ( 30 ) and the bracket ( 41 ) and has a through-hole ( 75 a ) through which the fixture member ( 80 ) passes, and
the vibration absorbing member ( 75 ) includes: a first vibration absorbing member ( 75 B) that has specified rebound resilience; and a second vibration absorbing member ( 75 C, 75 D) that has higher rebound resilience than the specified rebound resilience, and, in a state of being accommodated in a recessed section ( 47 ) of the bracket ( 41 ), the vibration absorbing member ( 75 ) is held between the housing ( 30 ) and the bracket ( 41 ),
wherein the bracket ( 41 ) has a sleeve section ( 45 ) that is provided with an opening ( 44 ) and is fitted to the through-hole ( 75 a ) of the vibration absorbing member ( 75 ), the opening ( 44 ) being provided along a penetrating direction of the fixture member ( 80 ), and wherein the fixture member ( 80 ) passes through the opening ( 44 ),
wherein the first vibration absorbing member ( 75 B) contacts the housing ( 30 ) and contacts the bracket ( 41 ),
wherein the second vibration absorbing member ( 75 C) has a contact section ( 75 Ca) that contacts the housing ( 30 ), and
wherein the first vibration absorbing member ( 75 B) includes an annular recess in which the second vibration absorbing member ( 75 C) is accommodated.
2. The brake hydraulic pressure controller ( 70 ) according to claim 1 , wherein the recessed section ( 47 ) of the bracket ( 41 ) has an opening ( 79 ) from which heat generated in the vibration absorbing member ( 75 ) is released.
3. The brake hydraulic pressure controller ( 70 ) according to claim 1 , wherein the fixture member ( 80 ) has: a fixed section ( 90 ) that is fixed to the housing ( 30 ); and a coupled section ( 81 ) that is coupled to the fixed section ( 90 ) in an axial direction so as to press the bracket ( 41 ) to the housing ( 30 ) side.
4. The brake hydraulic pressure controller ( 70 ) according to claim 3 , wherein a tip ( 93 ) of the fixed section ( 90 ) is press-fitted into a support hole ( 31 ) provided in the housing ( 30 ).
5. The brake hydraulic pressure controller ( 70 ) according to claim 3 , wherein the fixed section ( 90 ) and the coupled section ( 81 ) are coupled to each other by press-fitting.
6. The brake hydraulic pressure controller ( 70 ) according to claim 3 , wherein the fixed section ( 90 ) and the coupled section ( 81 ) are coupled to each other by threading.
7. A method for attaching a hydraulic unit ( 10 ) to a vehicle body, the hydraulic unit ( 10 ) executing brake control by controlling a hydraulic pressure of a brake fluid to be supplied to a braking section ( 111 , 116 ), the method comprising:
a step of accommodating a vibration absorbing member ( 75 ) in a recessed section ( 47 ) of a bracket ( 41 ) that is fixed to the vehicle body and holding the vibration absorbing member ( 75 ) by the bracket ( 41 ), wherein the vibration absorbing member ( 75 ) includes: a first vibration absorbing member ( 75 B) that has specified rebound resilience; and a second vibration absorbing member ( 75 C, 75 D) that has higher rebound resilience than the specified rebound resilience;
a step of fixing the bracket ( 41 ), to which the vibration absorbing member ( 75 ) is attached, to a housing ( 30 ) of the hydraulic unit ( 10 ); and
a step of fixing the bracket ( 41 ) to a vehicle-body side bracket ( 60 , 61 ) provided in the vehicle body,
wherein the bracket ( 41 ) has a sleeve section ( 45 ) that is provided with an opening ( 44 ) and is fitted to a through-hole ( 75 a ) of the vibration absorbing member ( 75 ), the opening ( 44 ) being provided along a penetrating direction of a fixture member ( 80 ), and wherein the fixture member ( 80 ) passes through the opening ( 44 ),
wherein the first vibration absorbing member ( 75 B) and the second vibration absorbing member ( 75 C) contact the housing ( 30 ),
wherein the first vibration absorbing member ( 75 B) contacts the bracket ( 41 ), and
wherein the first vibration absorbing member ( 75 B) includes an annular recess in which the second vibration absorbing member ( 75 C) is accommodated.