Abstract: A lifter device including: an input member configured to be rotated about a rotation shaft in synchronization with an operation handle and to input an operation force of the operation handle to a rotation drive mechanism and a lock mechanism; and a fixing member slidably fixing the input member to a support member rotatably supporting the rotation shaft.

Abstract: Provided is a vehicle seat that facilitates setting of a starting load of a movable member. The vehicle seat includes a movable mechanism including: first and second springs coupled to a frame; a movable member displaceable relative to the frame; a first passive member and a second passive member coupled with the respective first and second springs; and a restriction member configured to restrict displacement of the first and second passive members. The movable member displaces the first passive member in a first direction when the movable member is displaced in the first direction, and displaces the second passive member in a second direction when the movable member is displaced in the second direction. The restriction member restricts displacement of the first passive member from a first-passive-member initial position in the second direction and displacement of the second passive member from a second-passive-member initial position in the first direction.

Abstract: A lifter device, wherein a pawl operating member is configured to be rotatable with respect to a rotation shaft so as to rotate in accordance with an operation of an operation handle and includes a first projection protrudingly formed on its outer peripheral side for rotational alignment, wherein a support member includes a second projection which is protrudingly formed so as to face the first projection and which serves as a reference position of a pawl operating member in a rotational direction, and wherein, in a state where the operation handle is not operated, a second spring is configured to bias the first projection so as to overlap with the second projection in the rotational direction of the pawl operating member.

Abstract: A seat cushion adjusting apparatus includes: a nut support mechanism that supports a nut member on a frame of a seat cushion; and a variable mechanism that changes a length of the seat cushion based on an axial movement of a screw shaft screwed to the nut member, wherein the nut support mechanism allows the nut member and the screw shaft to be integrally tilted while restricting rotation of the nut member.

Abstract: A seat cushion adjusting apparatus includes: a nut support mechanism that supports a nut member on a frame of a seat cushion; and a variable mechanism that changes a length of the seat cushion based on an axial movement of a screw shaft screwed to the nut member, wherein the nut support mechanism allows the nut member and the screw shaft to be integrally tilted while restricting rotation of the nut member.