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 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 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, 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, 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).