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| 20130274367 | SURFACE MODIFICATION METHOD, SURFACE-MODIFIED ELASTIC BODY, GASKET FOR INJECTOR, INJECTOR, AND TIRE - Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber. The surface modification method comprises the step of forming hydroxyl group on surface of to-be-modified object such as rubber so that water contact angle of the surface becomes 8 to 50 degrees smaller than original water contact angle in unmodified condition, the step of forming polymerization initiation site by subjecting the hydroxyl group to action of secondary or tertiary organic halide, and the step of growing polymer brush on the surface of to-be-modified object by subjecting monomer to radical polymerization at the polymerization initiation site acting as a point of initiation. | 10-17-2013 |
| 20150266984 | SURFACE MODIFICATION METHOD, SURFACE-MODIFIED ELASTIC BODY, GASKET FOR INJECTOR, INJECTOR, AND TIRE - Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber. The surface modification method comprises the step of forming hydroxyl group on surface of to-be-modified object such as rubber so that water contact angle of the surface becomes 8 to 50 degrees smaller than original water contact angle in unmodified condition, the step of forming polymerization initiation site by subjecting the hydroxyl group to action of secondary or tertiary organic halide, and the step of growing polymer brush on the surface of to-be-modified object by subjecting monomer to radical polymerization at the polymerization initiation site acting as a point of initiation. | 09-24-2015 |
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| 20090001808 | VEHICLE BRAKE HYDRAULIC PRESSURE CONTROL UNIT | 01-01-2009 |
| 20090206653 | BRAKE FLUID PRESSURE CONTROL DEVICE FOR BAR HANDLE VEHICLE - A brake fluid pressure control device for a bar handle vehicle has a front wheel brake system which imparts a braking force to a front wheel and a rear wheel brake system which imparts a braking force to a rear wheel. At least one of the brake systems has a master cylinder which generates brake fluid pressure in accordance with an operation amount of a brake operation element, first and second wheel cylinders both of which impart the brake force on one of the front and rear wheels, a first hydraulic path which communicates the master cylinder with the first wheel cylinder, a second hydraulic path which is branched from the first hydraulic path and connected to the second wheel cylinder and a boosting unit which boosts the brake fluid pressure in the second wheel cylinder without boosting the brake fluid pressure in the first wheel cylinder. | 08-20-2009 |
| 20110204708 | BRAKE FLUID PRESSURE CONTROL DEVICE FOR VEHICLE - A brake fluid pressure control device has a base unit including: an inlet valve mounting hole; an outlet valve mounting hole; a reservoir hole; a cylinder hole into which a plunger is inserted to freely slide in the cylinder hole; an inflow hole that connects the outlet valve mounting hole and the reservoir hole; a suction hole that connects the reservoir hole and the cylinder hole; and a discharge hole that connects the cylinder hole and the inlet valve mounting hole, wherein the suction hole is configured to be inserted with a suction valve that allows only an inflow of the brake fluid into the cylinder hole, wherein the discharge hole is configured to be inserted with a discharge valve that allows only a discharge of the brake fluid from the cylinder hole, and wherein the inflow hole and the suction hole are arranged to be substantially in parallel with each other. | 08-25-2011 |
| 20110239641 | BRAKE FLUID PRESSURE CONTROL DEVICE FOR VEHICLE - A brake fluid pressure control device for a vehicle includes: a base body; reservoirs to store brake fluid in the base body; and a single lid member secured to the base body. The reservoir has a reservoir hole, a piston that slides inside the reservoir hole, and a spring that biases the piston. The lid member hermetically seals the reservoir holes. The lid member includes a plate member with which the springs make contact and a ring-shaped sealing member held between one face of the base body to which the plate member is secured and the other face of the plate member opposed to the one face to provide a sealing function. In the lid member, a screw hole is disposed outside a region surrounded by the sealing member and a communication passage communicating with the reservoir holes is provided inside the region. | 10-06-2011 |
| 20120298897 | ELECTRIC CONNECTION STRUCTURE OF ELECTROMAGNETIC VALVE DRIVE ASSEMBLY, ELECTROMAGNETIC VALVE DRIVE ASSEMBLY, AND VEHICLE BRAKE FLUID PRESSURE CONTROL APPARATUS - An electric connection structure of a solenoid valve drive assembly has a solenoid valve, a coil that drives the solenoid valve, and a housing in which the solenoid valve and the coil are located, so that a terminal of the coil and a terminal inside the housing are electrically connected to each other. In the electric connection structure, a coil urging part that urges the coil is provided between the housing and the coil, and the coil urging part has: a base portion to be attached to the housing, and an elastic portion that extends from the base portion to press the coil. | 11-29-2012 |
| 20140026557 | ELECTRIC BRAKE DEVICE - An electric brake device includes a first slave piston which is housed in a cylinder body and generates hydraulic pressure in a first hydraulic chamber by moving forward, a motor which transmits a driving force to the first slave piston, and a restriction pin which is inserted and secured to the cylinder body in a direction perpendicular to an axial direction of the cylinder body and restricts a backward position of the first slave piston when a hydraulic pressure is applied from an outside to the first hydraulic chamber, wherein the restriction pin is inserted and secured to the cylinder mechanism in the direction perpendicular to the axial direction of the cylinder main body. Further, a clearance is formed between an inner peripheral wall of the cylinder body and a first groove portion and second groove portion which are formed on an outer surface of the restriction pin. | 01-30-2014 |
| 20150158466 | BRAKE SYSTEM INPUT APPARATUS AND VEHICLE BRAKE SYSTEM - One embodiment provides a brake system input apparatus into which a brake operation performed by an operating person k inputted, including: a base body; a master cylinder that is provided in the base body and that generates a brake hydraulic pressure by a piston, the piston being connected to a brake operator; a stroke sensor unit that is attached to the base body on a side of the master cylinder and that has a detection element, the detection element being configured to detect a sliding stroke of the piston; and a control circuit board that is provided on a side of the base body, wherein the stroke sensor unit has a connection terminal portion that is connected to a connection terminal of the control circuit board, and wherein the connection terminal portion is disposed so as to face the control circuit board. | 06-11-2015 |
| 20150275926 | RESERVOIR TANK - One embodiment provides a reservoir tank, including: a reservoir main body having a reserving chamber which reserves a hydraulic fluid, a hydraulic fluid pouring port which is provided at an upper portion of the reservoir main body, and a hydraulic fluid supply port which is provided at a lower portion of the reservoir main body. A groove-like recess portion is formed on a bottom surface of the reservoir main body. As in a projection in which the hydraulic fluid pouring port is projected onto a bottom surface side of the reservoir main body, the recess portion is disposed between the hydraulic fluid pouring port and the hydraulic fluid supply port. | 10-01-2015 |
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| 20140182283 | HYDRAULIC PRESSURE GENERATOR - A hydraulic-pressure generator including: primary and secondary pistons displaced corresponding to displacement of a brake pedal; a first pressure chamber communicating with a first hollow in the primary piston and generating in brake fluid hydraulic pressure corresponding to the displacement of the primary piston; a second pressure chamber communicating with a second hollow in the secondary piston and generating in the brake fluid hydraulic pressure corresponding to the displacement of the secondary piston; one or more first communication openings formed in a peripheral wall surrounding the first hollow; and second communication openings formed in a peripheral wall surrounding the second hollow. The flow rate of the brake fluid through the one or more first communication openings is different from the flow rate of the brake fluid through the second communication openings. | 07-03-2014 |
| 20140298797 | BRAKING DEVICE - Disclosed is a braking device in which all multiple ports (for example, input ports ( | 10-09-2014 |
| 20150053877 | BRAKE HYDRAULIC DEVICE FOR VEHICLE - Provided is a brake hydraulic device for a vehicle, including: a base body having a hydraulic pressure path for brake fluid formed therein; an electromagnetic valve which opens and closes the hydraulic pressure path; an electromagnetic coil which drives the electromagnetic valve; and a housing attached to the outer surface of the base body and having a housing chamber for accommodating the electromagnetic valve and the electromagnetic coil. The housing includes a peripheral wall part having openings formed on a front side and a rear side thereof, and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side. The housing chamber is provided on the rear side of the intermediate wall part, and recessed portions and a projecting portion is formed on a front surface of the intermediate wall part. | 02-26-2015 |
| 20150059334 | BRAKE HYDRAULIC DEVICE FOR VEHICLE - Provided is a brake hydraulic device for a vehicle, including: a base body having a hydraulic pressure path for brake fluid formed therein; an electromagnetic valve; an electromagnetic coil; a pressure sensor; and a housing attached to the outer surface of the base body. The housing includes a peripheral wall part and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side. A plurality of bus bars on the coil side to be electrically connected to the electromagnetic coil, and a plurality of bus bars on the sensor side to be electrically connected to the pressure sensor are embedded in the intermediate wall part. A hierarchy region where the bus bars on the coil side and the bus bars on the sensor side are positioned in a hierarchy state with each other in the front-rear direction is provided. | 03-05-2015 |
| 20150059335 | STROKE SIMULATOR - Provided is a stroke simulator in which the piston operates smoothly without being inhibited from displacement thereof by the negative pressure generated in the closed space, even if the piston is configured to be displaced so as to close the space in which the elastic member is housed, and to elastically deform the elastic member. A stroke simulator, in which a simulator piston presses a first return spring, which is housed in a bottomed cylindrical portion, from an opening portion side of the cylindrical portion, to cause the first return spring to be elastically deform, and to generate a brake reaction force. When the opening portion is closed by the simulator piston, a brake fluid filled in the cylinder portion is taken into the inside of the cylindrical portion via a flow path leading to the inside of the cylindrical portion from a second cylinder. | 03-05-2015 |
| 20150061363 | BRAKING DEVICE - A braking device includes a guide piston which surrounds the outer periphery of a rod part of a second slave piston, a cup seal which is mounted on the second slave piston, and a seal member which is provided on the guide piston. The second slave piston includes an enlarged diameter portion which comes into contact with an axial-direction surface of the guide piston when the second slave piston is in the initial position, and the enlarged diameter portion is provided with a cut-out section which extends in the internal diameter direction of the second slave piston. | 03-05-2015 |
| 20150068201 | BODY RESERVOIR ASSEMBLY - Provided is a body reservoir assembly whose height can be reduced. In the body reservoir assembly, the reservoir comprises: a recessed portion formed on a bottom surface of the reservoir; and a reservoir side connecting portion formed in the recessed portion and connected to a cylinder portion. | 03-12-2015 |
| 20150075370 | PISTON PUSH ROD ASSEMBLY, MASTER CYLINDER, AND MANUFACTURING METHOD FOR PISTON PUSH ROD ASSEMBLY - Provided is a piston push rod assembly which can prevent discomfort from being imparted during the operation of a brake pedal by a driver. A piston push rod assembly, wherein: a second piston is provided with a piston slide section which is housed in a cylinder and which slides relative to the cylinder, and a connection tube section which is connected to a push rod; the piston slide section is covered by metal plating; the connection tube section has a non-plated section; and the second piston and the push rod are connected by the caulking of the connection tube section when the push rod has been inserted inside the connection tube section. | 03-19-2015 |
| 20150082979 | HOUSING AND MASTER CYLINDER DEVICE - A lid member has an external shape inscribing a quadrilateral formed by two sets of two facing sides, and has: a pair of first cut-out sections configured by cutting out, in the same size, a pair of diagonal corners from among the two sets of diagonal corners of the quadrilateral; and a pair of second cut-out sections configured by cutting out the other diagonal corners in the same size. The outer shape of the lid member is formed in a point-symmetric shape relative to the center of an opening in a peripheral wall section. The first cut-out sections have a larger surface area than the second cut-out sections, and one out of the pair of first cut-out sections is configured so as to be arranged in the vehicle progression direction and at the bottom in the vertical direction, when a base body is mounted to a vehicle. | 03-26-2015 |
| 20150091371 | STROKE SIMULATOR AND BUSH FOR STROKE SIMULATOR - A stroke simulator and a bush for a stroke simulator are configured so that a bush provided to a stroke simulator can be attached without direction management. The stroke simulator generates brake reaction force by a simulator piston that is displaced within a cylinder by hydraulic pressure generated according to the operation of a brake pedal by a driver. A cylindrical rubber bush is elastically deformed in an axial direction by pressure from the simulator piston to generate brake reaction force, the bush characterized in that a first end section on the simulator piston side and a second end section facing the first end section contain the same number, at least two, of concave sections which are concaved in the axial direction, and the concave section formed in the first end section and the concave section formed in the second end section are formed in different positions in the axial direction. | 04-02-2015 |
| 20150158473 | HYDRAULIC BRAKING DEVICE - Provided is a hydraulic braking device wherein the heat of a driving coil can be absorbed by a base body, and the heat radiation performance is excellent. The hydraulic braking device having a base body that includes therein a fluid passage for brake fluid, includes: a solenoid valve disposed on one surface of the base body; and a driving coil attached around an axis of the solenoid valve, wherein the one surface of the base body is provided with a wall surface facing an outer circumferential surface of the driving coil. A lower surface of the driving coil is in contact with the one surface of the base body, and a clearance is formed between the outer circumferential surface of the driving coil and the wall surface. | 06-11-2015 |
| 20150158474 | MASTER CYLINDER APPARATUS - Provided is a master cylinder apparatus with a reduced size enabled by simplifying the fluid passageway configuration. A master cylinder apparatus which includes a base member containing a fluid passageway for brake fluid and to which an operation of a brake operator is inputted is provided with: a master cylinder installed on the base member to generate a fluid pressure based on an input produced by operating the brake operator; and at least two solenoid valves attached to one side of the base member to open or close the fluid passageway. The two solenoid valves are disposed symmetrically with respect to a central axis along the axial direction of the master cylinder as viewed from a direction perpendicular to the one side of the base member. | 06-11-2015 |
