Massage device for use in backrest of vehicle seat to e.g. avoid distortions of back of user, has airbag device formed with inflatable chambers and filled with air through single air line, where chambers are connected to channels

摘要

The device has a feed pump conveying air for inflating a cruciform- or clove leaf-shaped airbag device (7). The airbag device is formed with multiple inflatable chambers (18a, 18b, 19a, 19b) that are connected to channels (22). The airbag device is filled with air through a single air line (8). The airbag device comprises a single common air supply (24) for inflating and deflating air. A valve is arranged in a control device and/or the feed pump for inflating and deflating air. The airbag device is connected with the control device through the air line. An independent claim is also included for a backrest comprising a pad body.