A child seat apparatus includes a seat, a reclinable backrest, and at least either a pair of side guards rotatably mounted on the backrest or a pair of armrests mounted on the seat, wherein the lateral spacing between the side guards or the armrests is changeable. An interlocking mechanism links...http://www.google.es/patents/US5681084?utm_source=gb-gplus-sharePatente US5681084 - Child seat apparatus
