A softness adjusting device for a vehicle seat is arranged under the seat cover of the vehicle seat and includes a soft inflatable bag and a valve component arranged outside the soft inflatable bag. The valve component includes a throttle valve and a one-way check valve. The throttle valve is configured to block or communicate a gas in the soft inflatable bag from or with an external air source. The one-way check valve provides a flow direction from outside to inside and is configured to fill the soft inflatable bag with the external air source when the pressure of the external air source is greater than air pressure in the cavity of the soft inflatable bag. The soft inflatable bag is filled with at least one flexible filler.

Disclosed herein are a cold/warm headrest for a vehicle and a method of controlling operation thereof. It is possible to provide cold air to an occipital region, a head, and a face of a seated occupant, and to provide warmth to a neck and shoulders of the occupant, in which the trapezius muscles are located along with peripheral nerves.

The invention relates to a surface temperature-controlling device, in particular for use in vehicles, comprising a first air-distributing layer which has multiple air inlets extending through the first air-distributing layer and multiple air outlets extending through the first air-distributing layer, and a second air-distributing layer which fluidically connects air inlets and air outlets of the first air-distributing layer, wherein the air inlets are designed to introduce pre-heated or pre-cooled air into the second air-distributing layer, and the air outlets are designed to discharge air out of the second air-distributing layer.

An air conditioning device for a vehicle seat, the air conditioning device includes: at least one flow generator to generate an air flow; at least one air inlet opening fluidically connected to a flow inlet of the flow generator to draw in air to be temperature-controlled; at least one air outlet opening fluidically connected to a flow outlet of the flow generator to eject the temperature-controlled air; a temperature-control device configured to control a temperature of the air drawn in through the at least one air inlet opening prior to the air being ejected from the at least one air outlet opening; and a temperature sensor configured to detect a temperature of the air drawn into the at least one air inlet opening and to adapt a heating power of the temperature-control device to the detected temperature of the drawn-in air.

To better fulfill a sleep-inducing function for a seated person, a seat device includes a pressing device provided in a seat back and configured to press a back or a waist of a seated person to induce breathing; at least one of a temperature adjusting device configured to change a temperature of a seat cushion and/or the seat back and a shape adjusting device configured to change a surface shape of the seat cushion and/or the seat back; and a controller configured to control the pressing device to press the back or the waist of the seated person at a set cycle corresponding to a breathing cycle of a person at a sleeping time, and control the at least one of the temperature adjusting device and the shape adjusting device.

A support structure for supporting the user of a mobility device or the like, the support structure comprising a fluid flow channel, the fluid flow channel comprising a fluid inlet and a fluid outlet, wherein at least part of the fluid flow channel is tapered, the at least part tapered fluid flow channel comprising a first end and a second end, the first end of the at least part tapered fluid flow channel being located proximal to the fluid inlet and the second end of the at least part tapered fluid flow channel being located distal to the fluid inlet, and wherein the width of the second end of the at least part tapered fluid flow channel is greater than the width of the first end of the at least part tapered fluid flow channel.

There is provided a vehicle seat (car seat) comprising a seat cushion pad (seat body) having an air passage connected to an outlet port (114), and a blower having an inlet port (113) and configured to feed air taken in through the inlet port (113) to the air passage. The blower (100) is located on the lower side of the seat cushion pad (seat body) that is opposite to an occupant's side on which an occupant is to be seated, and the inlet port (113) is directed upward that is a direction toward the seat cushion pad (seat body).

A wire harness connected to a sensor is positioned on a back surface of a pad of a vehicle seat supported by a panel. The vehicle seat (1) includes a panel (4); a pad (11, 51) supported by the panel; a skin material (12, 52) covering a front surface of the pad; and a sensor (32) provided between the front surface of the pad and the skin material for acquiring information on a seat occupant, wherein the pad is provided with a through hole (35, 58) passed from the front surface of the pad to a back surface of the pad, and a recess (45, 61) formed in the back surface of the pad and connected to the through hole, the wire harness connected to the sensor extending in the through hole and the recess.

Various embodiments include illustrative vehicle seats, systems, vehicles, and methods for circulating airflow through a vehicle seat. An illustrative vehicle seat includes a cushion. The cushion is adapted to provide airflow therethrough. The cushion defines a primary airflow path directed to a primary outlet formed in a supporting portion of the cushion. The supporting portion of the cushion is adapted to receive direct body contact with a vehicle occupant while the vehicle occupant is seated within the vehicle seat. The cushion also defines a secondary airflow path directed to a secondary outlet formed in a non-supporting portion of the cushion.

A vehicle seat includes a seat main body having a seat back, and disposed at a vehicle front side of a seating position at an end side in a vehicle width direction of a rear seat; and a flow path having one end side and another end side, conditioned air flowing through the one end side, the conditioned air being produced by an air-conditioning device mounted at the vehicle, the other end side being disposed inside the seat main body, another end of the flow path opening at a vehicle rear surface of the seat back, and the conditioned air flowing through an inside of the flow path and being blown from the other end towards a vehicle rear side of the seat back.