Convertible seat for vehicles

A convertible seat for a vehicle comprising:

• a. an adult size seat constructed on a main frame that is attached to the vehicle including a substantially horizontal cushion for support when a person is seated, juxtaposed and meeting a substantially vertical backrest with a back support surface, the back support surface having an aperature as an entrance to a cavity therein, with the aperature having a closure means fastenable at the surface of the backrest;
• and
• b. a foldable child's size seat attached to the main frame within the cavity including a second cushion attached to the main frame and pivotable thereon from a position substantially vertical within the cavity when folded to a position substantially horizontal when unfolded within and outside the cavity, the cushion being juxtaposed and meeting a substantially vertical second backrest with a back support surface attached to the main frame, the cushion being foldable to a position adjacent to the second back rest when in folded position, and
• an armrest guard encircling the second cushion position when unfolded substantially paralled therewith, attached to and pivotal from the second backrest surface when unfolded, and substantially vertical when folded,
• the second cushion and armrest guard being pivotal, enclosed in the cavity, and covered by the closure means, in the folded position.