Patent application number | Description | Published |
20130239567 | ELECTRIC BRAKE ACTUATOR, AND BRAKE SYSTEM FOR VEHICLE - A motor cylinder device ( | 09-19-2013 |
20140157918 | Electrically Driven Linear Actuator - An electric linear actuator has a screw shaft incapable of rotating with respect to the housing. The screw shaft provides axial movement. A steel sleeve is fit into a bag like housing hole of the housing. A recessed groove is formed on the inner circumference of the sleeve and extends in a shaft direction. A locking pin, applied with metal plating, is inserted into an end of the screw shaft. The locking pin engages the recessed groove. The end of the sleeve is externally fit with a cap. The cap is fit into a base portion of the bag like housing hole of the housing. | 06-12-2014 |
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 |
20140319903 | BRAKE DEVICE - Provided is a vehicle brake system including a master cylinder which generates a master hydraulic pressure through an operation of a brake pedal by an operator, and a cylinder body which houses a first and second slave pistons driven by an electric motor operated in accordance with an operation amount of the brake pedal, and is formed with a first hydraulic chamber and a second hydraulic chamber for generating a slave hydraulic pressure through operations of the first and second slave pistons. Further, the cylinder body includes a first bleeder and a second bleeder which are configured to be switchable between open states in which a first hydraulic chamber and a second hydraulic chamber are in communication with an external of the cylinder body and closed states in which the first hydraulic chamber and the second hydraulic chamber are not in communication with the external of the cylinder body. | 10-30-2014 |
20140373526 | ELECTRIC BRAKE DEVICE - An electric brake device, in which the rotational drive force of an electric motor ( | 12-25-2014 |
20150040557 | STROKE SIMULATOR - Provided is a stroke simulator capable of suppressing occurrence of inclination of a piston with respect to a sliding surface formed in a cylinder. The stroke simulator includes a simulator piston which is displaced by sliding on a sliding surface formed in a first cylinder, and a first return spring which is housed in the first cylinder and applies, to the simulator piston, a reaction force which is generated by an elastic deformation of the spring under a pressing force due to a displacement of the simulator piston, and generates the reaction force which is applied to the simulator piston as a brake reaction force for a brake operating element. The stroke simulator is characterized in that a cup seal for sealing a gap formed between the sliding surface and the simulator piston is mounted in the middle in the axial direction of the sliding surface. | 02-12-2015 |
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 |
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 |
20150082786 | CYLINDER DEVICE - A cylinder device, which is provided with: a substrate having a cylinder hole and a reservoir union port; a piston which is inserted into the cylinder hole; a regulation member which regulates the rearward limit of the piston; a reservoir having a liquid supply part; and a seal member which is for the reservoir and which is externally fitted to the liquid supply part. Therein: the substrate comprises a mounting hole and a first communication hole which open to the reservoir union port and the cylinder hole; the regulation member is inserted into the mounting hole ( | 03-26-2015 |
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 |