Abstract: A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage current from the high voltage power supply is measured during the dead time period when the power storage element group is not connected to the low voltage electric load. When the value exceeds a predetermined value, the connection between the power storage element group and the low-voltage electric load is interrupted, so that electric shock is prevented.

Abstract: A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage resistance from the high voltage power supply to the ground is measured when the high voltage circuit is cut by the cutoff means placed between the high voltage power supply and the high-voltage load device. When the value less than a predetermined value, the connection between the high voltage power supply and the low-voltage load device is interrupted, so that electric shock is prevented.

Abstract: A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage resistance from the high voltage power supply to the ground is measured when the high voltage circuit is cut by the cutoff means placed between the high voltage power supply and the high-voltage load device. When the value less than a predetermined value, the connection between the high voltage power supply and the high-voltage load device is interrupted, so that electric shock is prevented.

Abstract: A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage current from the high voltage power supply is measured during the dead time period when the power storage element group is not connected to the low voltage electric load. When the value exceeds a predetermined value, the connection between the power storage element group and the low-voltage electric load is interrupted, so that electric shock is prevented.

Abstract: An electronic horn for use, e.g., in a vehicle, includes a piezoelectric element (52) that excites a plate-shaped oscillator (51). A resonator (7) is provided with an opening (71) and covers forward of the oscillator such that a resonance space (S) is defined between the resonator and the oscillator. An inner cylinder (62) and an outer conical housing (63) are provided concentrically around the resonator. A circular cover (8) covers the inner cylinder (62) and the outer conical housing (63) from the front, such that a buffer chamber (BR), at least one first sound amplifying chamber (MH1), and a second sound amplifying chamber (MH2) are defined around an entire circumference of the opening of the resonator.

Abstract: An electronic horn includes a cover (8) on a front side of an intermediate element (6). A first passage (P1) within the horn is defined by a central portion (82) of the cover (8) that projects into a cylindrical interior of a cylindrical water-proofing wall (621). Second passages (P2, P3, P4) extend generally concentrically with respect to the first passage (P1) and are respectively defined by water-proofing walls (83, 84) that are formed on the cover (8) and project into the interior spaces of water-proofing walls (622, 633). The outermost second passage (P4) opens toward the forward direction. The first and second passages (P1-P4) extend in a back-and-forth path that prevents any rainwater, which has entered the interior of the horn through the opening of the outermost second passage (P4), from reaching a resonance space (7) defined between the resonator (7) and a sound-generating oscillator (51).

Abstract: A power seat device is configured to acquire a target associated position of a tilted position, corresponding to a current position of a seatback for allowing the seatback to reach an end position in a reclining range, and a seat to reach an end position in a tilting range simultaneously. Outputs of a reclining motor and a tilting motor are adjusted so that the tilted position coincides with the acquired target associated position.

Abstract: Forward tilting of a seat back and pushing of the seat forward allow fixation between an upper slide and an upper slide rail to be released, thereby allowing the upper slide to reach a tip end position of the upper slide rail. With this structure, a lower lock mechanism releases fixation of a lower slide to a lower slide rail and a vertical slide lock mechanism fixes the upper slide and the lower slide. Further, pushing the seat back toward a seat front side allows the lower slide integrally provided with the upper slide to move to a tip end position of the lower slide rail.

Abstract: A seat frame for a vehicle seat includes a seat cushion frame that forms a frame for a seating portion of the vehicle seat, and a height adjustment mechanism that is coupled to the seat cushion frame and a rail mechanism of the vehicle seat. The height adjustment mechanism adjusts the height of the seat cushion frame. The height adjustment mechanism includes a sector gear that rotates based on a height adjustment operation, a link that moves the height of the seat cushion frame up and down based on the rotation of the sector gear, and a restriction member that abuts against the sector gear, thereby restricting the movement of the sector gear. At least one of portions of the sector gear and the restriction member that abut against each other has a tapered shape.

Abstract: An electronic vehicle horn outputs a warning sound by exciting a diaphragm using a piezoelectric device that is driven with a composite signal generated, in part, by modulating a first fundamental square wave with a first modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, modulating a second fundamental square wave with a second modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, and generating the composite signal by mixing the modulated first fundamental square wave and the modulated second fundamental square wave.

Abstract: Realized is a vehicle seat capable of improving the rigidity of a cushion frame with respect to a load input to a seat back while suppressing an increase in weight and size of the cushion frame. In a vehicle seat including a height adjustment mechanism which is driven to adjust the height of a seat cushion and a brake mechanism which maintains the height of the seat cushion when the height adjustment mechanism is not driven, the brake mechanism is connected to a second connection portion different from a first connection portion connected to the seat back in the cushion frame, and reinforcement portions and which extend in a direction from the first connection portion toward the second connection portion are provided between the first connection portion and the second connection portion in the cushion frame.

Abstract: A vehicle seat with a height adjustable seat bottom, includes a side frame (30) which constitutes left and right frames of the seat bottom, a linkage configured to render a height of the side frame adjustable, and an operation knob assembly (10) including an operation knob (12) for adjustment of the height of the side frame (30). The operation knob assembly (10) includes a fixing portion (15) protruding toward the side frame (30) and being fixed to the side frame (30) in a position inwardly of the operation knob (12) with respect to a direction of an axis (11) of rotation of the operation knob (12).

Abstract: A recliner mechanism 4 of a seat for a vehicle includes components in a case 15 having one side case 20 and the other side case 25. The case 15 is integrally attached by the attachment member 50 so that the one side case 20 and the other side case 25 are freely rotated. The attachment member 50 has at least a horizontal tubular portion 51 having a predetermined length and an abutment portion 52 connected to a peripheral edge of the tubular portion 51. In the attachment member 50, an abutment portion 52 is provided on either one of left and right sides of the tubular portion 51, and the other side of the tubular portion 51 is formed in an opening 56 for fitting in which the case 15 can be fitted.

Abstract: A vehicle seat achieves support rigidity of a height link mechanism coupled to a side frame that enables restraints of shaft misalignment between a drive shaft of a height brake and that of a sector gear portion. The vehicle seat includes side frames and a frame coupling member that couples the side frames together. An attachment member including a brake support portion that supports the drive shaft of the height brake is attached to the right and left insides of the right and left side frames. In the attachment member, a region located in back of the brake support portion is a region supported by the frame coupling member, and a region located in front of the brake support portion is a front frame coupling portion that is coupled to the side frames, whereby the attachment member is attached to the side frames.

Abstract: A vehicle seat slidable in a front-rear direction comprises a lower rail (5) fixed on a floor of a vehicle, and configured to have a shape elongated in the front-rear direction and having a groove (55) provided in a laterally central position, an upper rail (4) configured to be engageable with the groove (55) and slidable in the front-rear direction relative to the lower rail (5), and a seat bottom frame (3) fixed to the upper rail (4). The seat bottom frame (3) is fixed to a left or right side surface of the upper rail (4), the lower rail (5) has a pair of left and right top portions (53A, 53B) between which the groove (55) is disposed and of which the to inner top portion (53A) fixed to the seat bottom frame (3) is formed in a position lower than that of the outer top portion (53B) that is on a side opposite to the inner top portion (53A).

Abstract: A vehicle seat with a height adjustable seat bottom, comprises side frames (30) which constitute the seat bottom, front links (5) and rear links (6) pivotally connected to the side frames (30), slide rails (4) disposed under the side frames (30) to form a four-bar linkage with the side frames (30), the front links (5) and the rear links (6), and an operation unit (7) including an operation knob (71 B) configured to be operated to make a rotational motion which actuates the four-bar linkage for adjustment of a height of the seat bottom. The operation unit (7) includes a pinion gear (73) configured to be rotatable coaxially with the operation knob (71B) provided at one of the pair of side frames (30), and the front links (5) include a sector gear portion (51) configured to engage with the pinion gear (73), such that rotation of the pinion gear (73) causes the front links (5) to pivot.

Abstract: A vehicle seat with a height adjustable seat bottom, comprises side frames (30) which constitute the seat bottom, front links (5) and rear links (6) pivotally connected to the side frames (30), slide rails (4) disposed under the side frames (30) to form a four-bar linkage with the side frames (30), the front links (5) and the rear links (6), and an operation unit (7) including an operation knob (71 B) configured to be operated to make a rotational motion which actuates the four-bar linkage for adjustment of a height of the seat bottom. The operation unit (7) includes a pinion gear (73) configured to be rotatable coaxially with the operation knob (71B) provided at one of the pair of side frames (30), and the front links (5) include a sector gear portion (51) configured to engage with the pinion gear (73), such that rotation of the pinion gear (73) causes the front links (5) to pivot.

Abstract: A recliner mechanism 4 of a seat for a vehicle includes components in a case 15 having one side case 20 and the other side case 25. The case 15 is integrally attached by the attachment member 50 so that the one side case 20 and the other side case 25 are freely rotated. The attachment member 50 has at least a horizontal tubular portion 51 having a predetermined length and an abutment portion 52 connected to a peripheral edge of the tubular portion 51. In the attachment member 50, an abutment portion 52 is provided on either one of left and right sides of the tubular portion 51, and the other side of the tubular portion 51 is formed in an opening 56 for fitting in which the case 15 can be fitted.

Abstract: A vehicle seat with a height adjustable seat bottom, includes a side frame (30) which constitutes left and right frames of the seat bottom, a linkage configured to render a height of the side frame adjustable, and an operation knob assembly (10) including an operation knob (12) for adjustment of the height of the side frame (30). The operation knob assembly (10) includes a fixing portion (15) protruding toward the side frame (30) and being fixed to the side frame (30) in a position inwardly of the operation knob (12) with respect to a direction of an axis (11) of rotation of the operation knob (12).

Abstract: A vehicle seat slidable in a front-rear direction comprises a lower rail (5) fixed on a floor of a vehicle, and configured to have a shape elongated in the front-rear direction and having a groove (55) provided in a laterally central position, an upper rail (4) configured to be engageable with the groove (55) and slidable in the front-rear direction relative to the lower rail (5), and a seat bottom frame (3) fixed to the upper rail (4). The seat bottom frame (3) is fixed to a left or right side surface of the upper rail (4), the lower rail (5) has a pair of left and right top portions (53A, 53B) between which the groove (55) is disposed and of which the to inner top portion (53A) fixed to the seat bottom frame (3) is formed in a position lower than that of the outer top portion (53B) that is on a side opposite to the inner top portion (53A).