Toyota Boshoku Kabushiki Kaisha

Denso Corporation

Yosuke Uno

Masashi Yanagawa

Masahiko Onuma

Yuya Inoue

Kazutaka Sakohira

Masaru Kubota

Koji Saito

Kazuhiro Mori

There is provided an air supply and exhaust device for air cells which is configured to supply air to a plurality of air cells and exhaust air from the plurality of air cells via a distributor. The distributor includes a housing having a plurality of vent holes and a valve body including an air supply chamber and an exhaust passage. The exhaust passage has a cross-sectional area substantially the same as a cross-sectional area of a vent hole capable of communicating with the exhaust passage, and allows an exhaust receiving port configured to face the vent hole capable of communicating with the exhaust passage and an atmosphere opening port to communicate with each other by being curved around a rotation center of the valve body and extending in a circular arc shape along a rotation track of the valve body at least at the exhaust receiving port.

Air supply and exhaust device for air cells

Provided is an example of a vehicle seat that allows easy use of external pneumatic equipment such as an external air pillow. The vehicle seat includes an output portion configured to output an air having a pressure equal to or higher than an atmospheric pressure to an outside of the vehicle seat.

Vehicle seat

A support device for a vehicle seat includes a bag body. The bag body includes a bag body assembly including at least a first bag body unit and a second bag body unit that are combined with each other. The first bag body unit is disposed to form at least a support surface facing the seated occupant when the first bag body unit is expanded, and the second bag body unit is disposed to press the support surface toward the seated occupant when the second bag body unit is expanded. The first and second bag body units are simultaneously supplied with air and expanded, and a surface of the second bag body unit that faces the seated occupant in an expanded state is smaller than the support surface of the first bag body unit that faces the seated occupant in an expanded state.

Support device for vehicle seat

An electric pump includes a transmission unit that transmits rotational drive of a motor unit, a pump unit, and a rotary valve unit. The pump unit expands and contracts a pump chamber to draw in a fluid from an inlet and discharge the fluid from an outlet. The rotary valve unit includes a valve body and a valve cover. The valve body is rotated by the rotational drive force transmitted by the transmission unit. The valve cover includes a valve-side inlet that draws in a fluid and a plurality of fluid outlets that discharges the fluid to the exterior. The rotary valve unit is configured to switch the fluid outlets that come into communication with the inlet in accordance with rotational drive of the valve body. The valve body is intermittently driven by an intermittent drive mechanism that converts continuous drive corresponding to the rotational drive force into intermittent drive.

Electric pump

A vehicle seat includes a bladder as an actuator; a pump that is operated to supply air to the bladder; a switch that is operated to operate the pump; and a switching valve that is disposed in an air supply/discharge passage for the air for the bladder, the switching valve being configured to connect the air supply/discharge passage to a discharge port of the pump when the air is supplied to the bladder, and to connect the air supply/discharge passage to an exhaust port when the air is discharged from the bladder. The switching valve is incorporated in the switch, and is configured to receive an operating force applied to the switch, and to supply and discharge the air to and from the bladder in accordance with an operation of the switch.

Growing community of inventors

Aichi-ken, Japan

Yosuke Uno