in order to facilitate child seat installment in a vehicle and to improve performance of a child seat during front impact vehicular collisions , a seat arrangement is provided that includes a seat base into which the child seat can be detachably connected and a load leg pivotally mounted at one end of the base . the load leg is provided with a telescopic length adjustment , which allows the length of the load leg to be adjusted and then to be securely locked at a selected length . the top end of the load leg is provided with a fold latch arrangement which automatically engages when the load leg is rotated from a stored position to an operative one . this arrangement has a push - button type release feature to facilitate easy folding . alligator clamp - like members are provided at the other end of the base to clamp the seat belt , which is used to secure the base to a vehicle seat cushion , and to prevent the belt from slipping in its axial direction .