A coupler for coupling a cross-talk tube of a vehicle seat with a shaft of a dual recliner assembly. The coupler comprises a generally cylindrical body extending axially between an inboard end and an outboard end. The inboard end includes an inboard aperture having an inboard planar surface. The outboard end includes an outboard aperture having an outboard planar surface. The inboard planar surface and the outboard planar surface transition from an axially offset position to an axially aligned position when the coupler is installed with the cross-talk tube and the shaft of the dual recliner assembly.

A reclining mechanism of a seat is provided that includes a fixed flange, a mobile flange, and locking parts being placed on first guide seats of guide seats on a first side of the fixed flange to be slidable inwardly and outwardly between the guide protrusions. Each locking part includes a locking gear on an outer end and is configured to engage with the internal gear of the mobile flange when sliding outwardly, thereby inhibiting relative rotation between the mobile flange and the fixed flange. The reclining mechanism further includes a locking cam rotatably provided at a center of the fixed flange and sub-parts provided on second guide seats of the guide seats on the first side of the fixed flange to be slidable inwardly and outwardly between the guide protrusions, each of the sub-parts being divided into a first part and a second part by a slit.

A single motor dual-motion actuator and method for a vehicle seat includes a pin actuator rotatable in the first rotatable direction from a pin actuator rest position toward a pin actuator first position and rotatable in a second rotatable direction from the pin actuator rest position toward a pin actuator second position. The actuator further includes a first actuator component and a second actuator component. The first actuator component is co-rotatable with the pin actuator from a first actuator component rest position in the first rotatable direction toward a first actuator component actuating position when the pin actuator is rotated to the pin actuator first position. The second actuator component is co-rotatable with the pin actuator from a second actuator component rest position in the second rotatable direction toward a second actuator component actuating position when the pin actuator is rotated to the pin actuator second position.

A seat recliner for a vehicle may include: a fixing flange provided with multiple guide parts spaced apart from each other and having a guide groove formed along a locus having a predetermined distance from a center axis; and a rotary cam mounted on a center portion of the fixing flange, rotating about the center axis to press a locking gear such that the locking gear slides along the guide parts. In particular, the rotary cam includes: a first protrusion formed on a mount surface of the rotary cam, which is coming into contact with the fixing flange when mounted; and a second protrusion formed on a surface opposite to the mount surface and capable of engaging with a control plate. When the first protrusion is inserted into the guide groove, the guide groove guides a rotation of the rotary cam.

A motion conversion apparatus for a vehicle includes a fixed member including an internal gear arranged around a first axis, an input member configured to rotate about the first axis, a planetary gear including an external gear engaging with the internal gear and an output portion. The planetary gear is supported by the input member to be rotatable about a second axis arranged eccentrically relative to the first axis. In association with rotation of the input member, the planetary gear is configured to revolve around the first axis along the internal gear while self-rotating about the second axis such that the output portion performs a linear motion.

A disc recliner 18 for a seat assembly includes a fixed plate 22 secured to a seat cushion 12 and a rotatable plate 30 secured to a seat back 14. Each of the fixed and rotatable plates 22,30 has a plurality of teeth 40,48, the number of teeth not being equal. A flex spline 26 has a plurality of teeth 52, the number of teeth being equal to the number of teeth on the fixed plate 22. A wave generator 28 causes a portion of the teeth 52 on the flex spline 26 to meshingly engage with the teeth 40,48 on the fixed and rotatable plates 22,30. Rotation of the wave generator 28 causes the teeth 52 on the flex spline 26 which meshingly engage with the teeth 40,48 on the fixed and rotatable plates 22,30 to change, thereby causing the rotatable plate 30 to rotate relative to the fixed plate 22, which in turn causes the seat back 14 to pivot relative to the seat cushion 12.

An adjusting device for a vehicle seat for adjusting a component of the vehicle seat, may have a tube, a motor and a pinion which is drivable by the motor. The motor and the pinion may be arranged in the tube. In addition, a vehicle seat may have a transverse tube, a component which is movable relative to the transverse tube and the adjusting device for adjusting the component relative to the transverse tube.

A foldable car seat includes a base frame having a driver securely mounted thereon, a sliding frame operably connected to the driver and slidably attached to the base frame and having an adapter securely attached to a free end of the sliding frame so that the base frame is able to move relative to the sliding and a back frame foldably connected to the base frame and consisting of a pair of lower support frames foldably connected to free ends of the base frame through a first folding device and a pair of upper support frames foldably connected to free ends of the pair of lower support frames through a second folding device. The pair of lower support frames is foldable relative to the base frame and the pair of upper support frames is foldable relative to the pair of lower support frames. A locking mechanism is provided to the sliding frame to limit movement extent of as well as to position location of the sliding frame relative to the base frame.

A foldable car seat includes a base frame having a driver securely mounted thereon, a sliding frame operably connected to the driver and slidably attached to the base frame and having an adapter securely attached to a free end of the sliding frame so that the base frame is able to move relative to the sliding and a back frame foldably connected to the base frame and consisting of a pair of lower support frames foldably connected to free ends of the base frame through a first folding device and a pair of upper support frames foldably connected to free ends of the pair of lower support frames through a second folding device. The pair of lower support frames is foldable relative to the base frame and the pair of upper support frames is foldable relative to the pair of lower support frames. A locking mechanism is provided to the sliding frame to limit movement extent of as well as to position location of the sliding frame relative to the base frame.

A seat drive device includes a first operation restricting portion provided to a first transmission member and restricting a second operation member from being operated to move from an original position to an adjustment position in a state where a first operation member has been operated to move from an original position to an adjustment position and the first transmission member has been operated to move in response thereto, and a second operation restricting portion provided to a second transmission member and restricting the first operation member from being operated to move from the original position to the adjustment position in a state where the second operation member has been operated to move from the original position to the adjustment position and the second transmission member has been operated to move in response thereto.