Abstract: A steering control device has an electromagnetic clutch built into an electric motor. The electromagnetic clutch is provided with: an armature connected to a first closing member via a guide member, a coil holding part, and a bolt; a clutch plate connected to a rotor via a clutch plate attachment member, a key, and a motor shaft; and an excitation coil held by the coil holding part. The armature is fastened with the clutch plate when not attracted to the excitation coil during a power supply failure of the electric motor, and regulates relative rotation of the rotor with respect to a motor housing. Steering of a rack bar is thereby restricted at an optional steering position via the motor shaft, a worm shaft, and a steering shaft.

Abstract: A steering device of the present invention has a steered shaft rotation stopper (100) having a contact member (101) and a forcing member (102). The forcing member (102) forces at least either one of a steered shaft (6) or the contact member (101) in a direction in which the steered shaft (6) and the contact member (101) push against each other. In a state in which the contact member (101) contacts a contact portion (6D) of the steered shaft (6), the contact member (101) stops a rotation of the steered shaft (6).

Abstract: A steering device of the present invention has a steered shaft rotation stopper (100) having a contact member (101) and a forcing member (102). The forcing member (102) forces at least either one of a steered shaft (6) or the contact member (101) in a direction in which the steered shaft (6) and the contact member (101) push against each other. In a state in which the contact member (101) contacts a contact portion (6D) of the steered shaft (6) , the contact member (101) stops a rotation of the steered shaft (6).

Abstract: A semiconductor device header is provided with a base including a main body and a heat sink. A lead is inserted through a through hole extending through the main body. The is defined by a first opening and a second opening that opens in the upper surface of the main body. The second opening is in communication with the first opening and is smaller than the first opening in a plan view. The first opening is filled with an encapsulant that seals the lead. The second opening is filled with a covering material having a smaller relative permittivity than the encapsulant. The heat sink is located at a position partially overlapped with the first opening in a plan view and separated from the second opening in a plan view.

Abstract: A brake apparatus including a housing with a fluid passage, a piston body disposed within a closed-ended bore of the housing and communicated with the fluid passage, a first elastic member biasing the piston body toward a closed end of the bore, a valve element disposed in the fluid passage, a seat portion coming into contact with the valve element, a rod disposed between a crown surface of the piston body and the valve element, a second elastic member biasing the valve element toward the seat portion, a rod supporting hole portion that supports one end side of the rod, a rod outer circumferential passage portion disposed on the other end side of the rod and having an inner diameter larger than an inner diameter of the rod supporting hole portion, and at least one communicating hole portion that communicates the rod outer circumferential passage portion and the bore.

Abstract: A brake apparatus including a housing, a piston body disposed within each of a pair of closed-ended bores formed in the housing, a first elastic member that biases the piston body toward a closed end of the respective bores, a fluid passage opened to the closed end of the respective bores, a pressure regulating valve disposed in the fluid passage, and a rotary gear pump disposed in a region between the pressure regulating valve disposed in the fluid passage opened to the closed end of one of the bores and the pressure regulating valve disposed in the fluid passage opened to the closed end of the other of the bores. The fluid passages are formed to be offset from respective central axes of the piston bodies in such a direction that the fluid passages are spaced apart from each other.

Abstract: A brake apparatus including a piston body disposed in a closed-ended bore in a housing, a first elastic member biasing the piston body toward a closed end of the bore, and a pressure regulating valve including a valve element, a rod and a second elastic member biasing the valve element toward a seat portion and having an elastic force smaller than that of the first elastic member, the brake apparatus having a reservoir function of reserving brake fluid flowed from a vehicular wheel cylinder in the bore by strokes of the piston body upon ABS control, the piston body being a resin-molded member having a hard member on a piston crown surface, the hard member having a hardness larger than that of a resin material of the piston body, and the piston body and the rod are brought into contact with each other via the hard member.

Abstract: A brake apparatus including a housing, a piston body disposed within each of a pair of closed-ended bores formed in the housing, a first elastic member that biases the piston body toward a closed end of the respective bores, a fluid passage opened to the closed end of the respective bores, a pressure regulating valve disposed in the fluid passage, and a rotary gear pump disposed in a region between the pressure regulating valve disposed in the fluid passage opened to the closed end of one of the bores and the pressure regulating valve disposed in the fluid passage opened to the closed end of the other of the bores. The fluid passages are formed to be offset from respective central axes of the piston bodies in such a direction that the fluid passages are spaced apart from each other.

Abstract: A brake apparatus including a housing with a fluid passage, a piston body disposed within a closed-ended bore of the housing and communicated with the fluid passage, a first elastic member biasing the piston body toward a closed end of the bore, a valve element disposed in the fluid passage, a seat portion coming into contact with the valve element, a rod disposed between a crown surface of the piston body and the valve element, a second elastic member biasing the valve element toward the seat portion, a rod supporting hole portion that supports one end side of the rod, a rod outer circumferential passage portion disposed on the other end side of the rod and having an inner diameter larger than an inner diameter of the rod supporting hole portion, and at least one communicating hole portion that communicates the rod outer circumferential passage portion and the bore.

Abstract: A brake apparatus including a piston body disposed in a closed-ended bore in a housing, a first elastic member biasing the piston body toward a closed end of the bore, and a pressure regulating valve including a valve element, a rod and a second elastic member biasing the valve element toward a seat portion and having an elastic force smaller than that of the first elastic member, the brake apparatus having a reservoir function of reserving brake fluid flowed from a vehicular wheel cylinder in the bore by strokes of the piston body upon ABS control, the piston body being a resin-molded member having a hard member on a piston crown surface, the hard member having a hardness larger than that of a resin material of the piston body, and the piston body and the rod are brought into contact with each other via the hard member.

Abstract: A hydraulic apparatus includes a fluid pressure control unit which includes: a housing unit enclosing a pump, a motor fixed to a first side surface of the housing unit; a control section provided on a second side surface of the housing unit and arranged to control the motor; and a physical quantity sensor fixed to the control section. There are further provided a plurality of mount portions to support the housing unit to a vehicle body elastically. The physical quantity sensor is located between the mount portions.