Abstract: A pneumatic tire (1010) has a circumferential groove (1020) that extends in the tire circumferential direction (Tc), and a land part (1040) that is adjacent to the circumferential groove (1020) and extends in the tire circumferential direction (Tc). Formed in the circumferential groove (1020) is an inner groove (1110) on the bottom (1020b) of the circumferential groove (1020) and recessed more in the tire radial inward direction than the bottom (1020b). The inner groove (1110) includes an inclined part (1120) that extends so as to be inclined in the tire circumferential direction (Tc). The land part (1040) has a hook-like groove portion (1210) formed along the direction (A11) in which the inclined part (1120) extends. The extension direction ends (1210a, 1210b) of the hook-like groove portion (1210) end within the land part.

Abstract: A pneumatic tire 1 which includes a plurality of rib-shaped land portions extending in a tire-circumferential-direction and in which a circumferential groove is formed extending in the tire-circumferential-direction between the land portions. The circumferential groove is provided with an intra-groove groove formed to recess inwardly in a tire-radial-direction from the circumferential groove while having its upper ends at a groove bottom of the circumferential groove. Paired inner wall surface and outer wall surface forming the intra-groove groove each continuously extend in tire-circumferential-direction while meandering in tread-width-direction. The intra-groove groove includes a wide groove portion in which a groove width of the intra-groove groove in tread-width-direction is a predetermined width; and a narrow groove portion which is continuous with the wide groove portion and which has a narrower width than the predetermined width.

Abstract: A pretensioner comprising a gas generating unit; a pretensioner body to whose inside the gas is supplied; a spool driving member disposed inside the pretensioner body and causing a spool to rotate to retract webbing onto the spool; a gas flow rate adjusting portion disposed in the spool driving member and whose inner peripheral shape is set in accordance with a flow rate of the gas to be passed through the gas flow rate adjusting portion; and a filter unit having a vent portion that is communicated with a space between the gas generating unit and the spool driving member and is also communicated with the gas flow rate adjusting portion. The open shape of the gas flow rate adjusting portion has a portion that does not coincide in a plan view with the open shape of the vent portion, and the overall open area of the vent portion is set larger than the open area of the gas flow rate adjusting portion.

Abstract: When disassembling after a gas being supplied into a tube member, the gas in the tube member is discharged before the tube member and a moving member become separable. In a webbing take-up device, a cover plate cannot be removed from a frame and thereafter a cylinder and a piston inside the cylinder cannot be separated before covering of a fixing screw with a covering section of a plate being released by removing a screw from an exhaust port of the cylinder and by removing the plate from the cylinder. Thus, after a high-pressure gas being supplied into the cylinder, the high-pressure gas inside the cylinder can surely be discharged by removing the plate from the cylinder and the exhaust port is opened by the screw before the cylinder and the piston being separated.

Abstract: A hearing optimization device and hearing optimization method having a high boost frequency characteristic reference live for high frequency range enhancement and a low boost frequency characteristic reference live for low frequency range enhancement to achieve separate gain control of input audio signal according to frequency. An audio signal processing and generating means is also included, along with synthesized audio signal output structure.

Abstract: A waterproof case for housing an electronic component includes a case member that has a plurality of breathing holes, and a breathable waterproof filter fitted to the case member at a position corresponding to the breathing holes to cover the breathing holes. For example, open surfaces of at least two of the breathing holes, opened outside of the case member, can be made to face in different directions. Furthermore, the breathing hole has an open area on a side of the breathable waterproof filter, which is larger than an open area of the breathing hole on a side opposite to the breathable waterproof filter, in the case member. Accordingly, the waterproof case enhances waterproofness while circulating air between the inside and the outside of the waterproof case.

Abstract: A waterproof case for housing an electronic component includes a case member that has a plurality of breathing holes, and a breathable waterproof filter fitted to the case member at a position corresponding to the breathing holes to cover the breathing holes. For example, open surfaces of at least two of the breathing holes, opened outside of the case member, can be made to face in different directions. Furthermore, the breathing hole has an open area on a side of the breathable waterproof filter, which is larger than an open area of the breathing hole on a side opposite to the breathable waterproof filter, in the case member. Accordingly, the waterproof case enhances waterproofness while circulating air between the inside and the outside of the waterproof case.

Abstract: A drive apparatus supplies electric power to a solenoid of an inductive load from a battery and a capacitor to improve response of the load. The drive apparatus comprises switches for switching between a first state where a negative side of the battery is connected to a positive side of the battery, and a second state where the negative side of the capacitor is connected to the negative side of the battery. When the load is in operation, the voltage applied to the solenoid is raised by the voltage of the battery as the first state, so that the current flowing into the solenoid rises sharply to improve response of the load. When the operation of the load is to be stopped, the electric power to the solenoid is interrupted, and the energy accumulated in the solenoid is recovered by the capacitor as the second state.

Abstract: A drive apparatus supplies electric power to a solenoid of an inductive load from a battery and a capacitor to improve response of the load. The drive apparatus comprises switches for switching between a first state where a negative side of the battery is connected to a positive side of the battery, and a second state where the negative side of the capacitor is connected to the negative side of the battery. When the load is in operation, the voltage applied to the solenoid is raised by the voltage of the battery as the first state, so that the current flowing into the solenoid rises sharply to improve response of the load. When the operation of the load is to be stopped, the electric power to the solenoid is interrupted, and the energy accumulated in the solenoid is recovered by the capacitor as the second state.

Abstract: In a vehicle electronic control unit, a power device and a circuit component, which structure a circuit in which current flows when the power device is driven, and a printed board are disposed within an aluminum case as a housing. Both the power device and the circuit component are disposed within a resin mold unit in a state where both the power device and the circuit component are wired so that a loop circuit is structured as a current path. Both the power device and the circuit component are mounted on the printed board by using a connection terminal which protrudes from the resin mold unit. According to the vehicle electronic control unit, noise and efficiency of the circuit can be improved because a loop of large current can be reduced.

Abstract: A casing for an electronic control device, by which a cover and a casing body are reliably sealed up while preventing the cover from warping or from being distorted, although the cover is made of a thin sheet material. The electronic control device casing comprises: a casing body having an opening in its upper face portion for casing a printed circuit board; a cover made of a sheet material for closing the opening of the casing body; a groove portion formed in the open edge portion of the casing body; a liquid sealing material fitted in the groove portion for sealing the open edge portion of the casing body and the flange portion of the cover; and a ridge portion having a generally U-shaped section and formed on the flange portion of the cover for being fitted in the groove portion of the casing body.

Abstract: An object of the present invention is to obtain an acceleration sensor that can reliably detect acceleration when inclination of an inclining member is within a fixed range, and that can reduce unnecessary movement of relevant members when inclination of the inclining member is outside of the range, so that space efficiency in an inner portion is high. In the present invention, a gear of a fixed gear fixed at a seat cushion is formed in only a portion in the circumferential direction, and a portion at which the gear is not formed is a sliding surface. One of teeth among a plurality of teeth of a pinion of a revolving gear is short, to form a notched tooth portion. In a state in which the forward-collapsed angle of a seatback exceeds a predetermined angle, the notched tooth portion faces the sliding surface and the revolving gear body no longer rotates. At this time, since a bracket at which a sensor ball is mounted also does not rotate, the bracket is held at a fixed position relative to a frame plate.

Abstract: A casing for an electronic control device, by which a cover and a casing body are reliably sealed up while preventing the cover from warping or from being distorted, although the cover is made of a thin sheet material. The electronic control device casing comprises: a casing body having an opening in its upper face portion for casing a printed circuit board; a cover made of a sheet material for closing the opening of the casing body; a groove portion formed in the open edge portion of the casing body; a liquid sealing material fitted in the groove portion for sealing the open edge portion of the casing body and the flange portion of the cover; and a ridge portion having a generally U-shaped section and formed on the flange portion of the cover for being fitted in the groove portion of the casing body.