When reversing a direction in which an angle is adjusted by a first adjustment section and reversing a direction in which a posture is adjusted by a second adjustment section, a control section of a seat provides, before a timing at which a driving direction of a second driving section is reversed, a stop period for stopping the second adjustment section from adjusting the posture, and the control section causes the first adjustment section to carry out a preparation operation in advance during the stop period.

A recliner handle with an overload protection device is provided for a vehicle seat having a recliner attached to a recliner B-bracket. The recliner handle is attached to a handle spline having a disc shaft aperture configured to engage with a disc shaft of the recliner. A stop flange attached to the handle spline is configured to frictionally engage with an overload stop attached to the recliner B-bracket. The handle spline is rotatable in a first rotational direction between a first position wherein the stop flange is frictionally engaged with the overload stop and the disc shaft aperture is disengaged from the disc shaft and a second position wherein the disc shaft aperture engages the disc shaft. Rotation of the handle spline in a second rotational direction from the first position is restricted by the stop flange frictionally engaged with the overload stop.

A locking mechanism for a recliner assembly. The locking mechanism includes a plate and a pawl. The plate includes a peripheral lip having an interior face that defines a plurality of teeth. The pawl includes first teeth positioned at opposing ends thereof and second teeth positioned between the first teeth. Each of the first teeth has a first flat face and a second flat face. Each of the second teeth has one flat face and one curved face. The pawl is positionable between (i) a first position where the pawl does not engage with the plate and (ii) a second position where the pawl engages with the plate.

A locking mechanism includes a plate and a pawl. The plate includes a peripheral lip having an interior face that defines a plurality of teeth. The pawl defines a central axis and includes a plurality of pawl teeth including a first middle tooth and a second middle tooth. The first middle tooth is positioned on a first side of the central axis and has a first flat face facing the central axis and a first curved face facing away from the central axis. The second middle tooth is positioned on an opposing second side of the central axis and has a second flat face facing the central axis and a second curved face facing away from the central axis. The pawl is positionable between (i) a first position where the pawl does not engage with the plate and (ii) a second position where the pawl engages with the plate.

A reclining device for a vehicle seat includes a housing having one side opened to communicate with an interior of the housing, a clutch drum inserted into the housing, configured to be rotatable, and having one side directed toward the housing and opened to communicate with an interior of the clutch drum, a cam inserted into the clutch drum and configured to receive a rotational force from the outside of the housing and transmit the rotational force to the clutch drum, and a brake drum configured to receive the rotational force from the clutch drum and having a center to which a shaft is coupled, in which a plurality of coupling protrusions is provided on one surface of the cam directed toward the housing, and the coupling protrusions penetrate the other side of the housing and are inserted into coupling holes of a lever bracket.

A vehicle seat includes a first member, a second member, and a pivot device configured to connect the second member angularly adjustably to the first member. The pivot device includes a pair of rotating members that are rotatably connected to each other and form an outer shell of the pivot device, an operating shaft that passes through central holes formed respectively in the pair of rotating members, a seal member supported by the operating shaft and configured to seal a clearance between the operating shaft and each central hole, a cover supported by the operating shaft and configured to hold the seal member between the cover and each rotating member. One of the pair of rotating members is coupled to the first member, and the other of the pair of rotating members is coupled to the second member.