A child seat includes a seat body having a seat portion, a backrest, and right and left side guards; and a cushion disposed on an outer side surface of the side guards. The cushion may include a gasbag filled with gas. The child seat may further include vent portion for discharging the gas in the gasbag...http://www.google.sh/patents/US7125073?utm_source=gb-gplus-sharePatent US7125073 - Child seat
