child car seat (1) comprising a seat portion (2) and a backrest (3), the latter having a headrest (4) and sidepieces (7) projecting above the sitting portion (2) being displaceable said sidepieces (7) laterally and separable from each other to increase the useful space for securing the child on the backrest (3) being movable said headrest (4) relative to the seat portion (2) an independent displacement of said sidepieces (7), allowing such movements to adapt the size of the backrest (3) the growth of the child, first and second control means (10, 11) for moving said sidepieces being provided (7 ) and said headrest (4), said first and second control means (10, 11) being operatively associated with the headrest (4), the second control means (11) for moving said sidepieces (7) is Tando therefore, together with first control means (10) for raising the headrest, allowing the provision that the headrest (4) and said sidepieces (7) to move separately, and allowing the latter to move in any position in which the headrest (4) is characterized in that the first control means (10) for moving the headrest (4) and those (11) for moving the sidepieces (7) are disposed in the headrest (4).
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