The present disclosure relates to a lumbar support assembly. The present disclosure provides a lumbar support assembly installed at a seat back frame at the inside of a vehicle seat and configured to support the back region of an occupant, comprising: a suspension mat coupled to the seat back frame; a guide box coupled to the suspension mat; an actuator coupled to the guide box and including a spindle shaft disposed at one side thereof so as to be positioned within the guide box; a pair of spindle nuts screw-coupled to the spindle shaft and slidably moved in opposite directions to each other along with the rotation of the spindle shaft; and a pair of cables coupled at one ends thereof to the seat back frame and coupled at the other ends thereof to the pair of spindle nuts.

An adjustable support system for a seat having a fixed frame includes a support movable from a first position to a second position relative to the frame. An actuator is coupled to only the support and is configured to move the support between the first and second positions. A member is operatively associated with and movable by the actuator. A flexible cable has a first end coupled to the member for travel along the length of the member and a second end coupled to the fixed frame such that movement of the member by the actuator causes the flexible cable to move the support between the first position and the second position.

A power seat operating device for a vehicle has a switch module for operating a power seat of the vehicle. In particular, the switch module includes a plurality of seesaw type switches to control operation directions of the power seat, and the operation directions of the power seat according to the operation of each switch is displayed with arrows on a display, thereby improving the switch operating convenience of the user such as accurately controlling the operation direction of the power seat according to the switch operation by the user, and accurately recognizing a selection state and an operation direction of the switch desired by the user.

Provided is a lumbar support device that can reduce a cost involved. One aspect of the present disclosure is a lumbar support device including a base, a pressure-receiving plate arranged at a seat-front side relative to the base, a hinge mechanism moving the pressure-receiving plate in seat front-rear directions, and a lead screw causing the hinge mechanism to be operable. The hinge mechanism includes a first paddle and a second paddle pivoting about a hinge pin in the seat front-rear directions. The first paddle includes a first pressing portion pressing the pressure-receiving plate toward the seat-front side and a first coupling portion coupled to a lead screw so as to be shifted in a seat-width direction as the lead screw rotates. The second paddle includes a second pressing portion pressing the pressure-receiving plate toward the seat-front side and a second coupling portion rotatably coupled to the based.

It is provided an adjusting device for a seat element of a vehicle seat supporting a body part of a seat user, with at least one driving device comprising a spindle drive and at least one adjustable support element for changing the contour or position of the seat element, wherein the spindle drive comprises a spindle extending along a spindle axis, which is floatingly mounted at a spindle end via a spindle holder such that at this spindle end the spindle is displaceable along at least one spatial direction extending transversely to the spindle axis. The spindle holder comprises a first and a second compensating element for a displaceability of the spindle end with respect to two first and second spatial directions extending approximately perpendicularly to each other and each perpendicularly to the spindle axis.

A lumbar adjuster for use in a vehicle seat and including a wire frame, a lumbar mat, an adjustment mechanism, and an arbor. The wire frame configured to be fixed to a backrest and including a first lateral portion, a second lateral portion and a transverse portion extending therebetween. The lumbar mat configured to face towards a backrest cushion when the lumbar adjuster is assembled to the vehicle seat. The adjustment mechanism connected to and configured to move along the first and second lateral portions and including a lever arm and a gear train operatively connected to and operable to articulate the lever arm to move a portion of the lumbar mat towards and away from the backrest cushion. The arbor connected to the transverse portion of the wire frame and the adjustment mechanism to fix the adjustment mechanism relative to the transverse portion.

Seat assemblies and subassemblies are disclosed. The subassemblies include massage and/or ventilation subassemblies that employ tubeless air distribution by fixing sheets together such as by heat-staking. The subassemblies also include a support structure for preassembling the massage, ventilation, and/or electronic components together prior to suspending them in a seat assembly.

A system of controlling various actuators associated with human support surfaces is disclosed. Such a system is made up of a support surface, a controller, and an actuator. The system may optionally include batteries, a means of charging the batteries, and a graphical user interface as well as a communication link between the graphical user interface and the support surfaces. The actuators are capable of altering contour and/or firmness, of a support surface, they may be vibrational or heating/cooling in nature, and they may also alter the overall relative position of a support surface to another support surface, and/or to the ground plane.

Provided is a lumbar support device that can reduce a cost involved. One aspect of the present disclosure is a lumbar support device including a base, a pressure-receiving plate arranged at a seat-front side relative to the base, a hinge mechanism moving the pressure-receiving plate in seat front-rear directions, and a lead screw causing the hinge mechanism to be operable. The hinge mechanism includes a first paddle and a second paddle pivoting about a hinge pin in the seat front-rear directions. The first paddle includes a first pressing portion pressing the pressure-receiving plate toward the seat-front side and a first coupling portion coupled to a lead screw so as to be shifted in a seat-width direction as the lead screw rotates. The second paddle includes a second pressing portion pressing the pressure-receiving plate toward the seat-front side and a second coupling portion rotatably coupled to the based.

Proposed is an actuator for a recliner which can be manufactured with components having simple structures to reduce weight, and functions of a seat operated through different cables are independently performed stably. The actuator for a recliner includes: a casing part, and a drive part provided with a worm wheel gear located inside the casing part and rotated by an operation of a motor, and a rack gear configured to move elastically toward a first or second side of the drive part in engagement with the worm wheel gear, with cables being coupled respectively to the first and second sides of the rack gear.