Stroller in combination with a safety seat assembly

A safety seat assembly in combination with a stroller which includes a seat for holding a child and a substantially U-shaped armrest having two parallel arms and a bar mounted therebetween, a recess laterally defined in one side of said bar, said safety seat assembly comprising:

• a base member having a first end portion and a second end portion, two ears each formed on the first end portion of said base member and each having a notch laterally defined therein for receiving said bar therein, an opening defined in said base member and located between said two ears, a retaining block formed on said base member and located in said opening between said two ears, a passage defined in an inner wall of said retaining block and communicating with said opening, a boss formed on the inner wall of said retaining block and facing said passage;
• a sliding member movably mounted in said base member and including a sliding lever slidably mounted between said two ears and having a first end portion, a mediate portion and a second end portion, a flange portion formed on an upperside of the mediate portion of said sliding lever to move therewith and slidably mounted in said passage, a stub formed on said flange portion and facing said boss, a stop formed on the second end portion of said sliding lever and detachably received in said recess of said bar;
• a biasing member mounted in said passage and having a first distal end fixedly attached to said boss and a second distal end fixedly attached to said stub;
• and
• a positioning member mounted on an underside of said base member for fastening said sliding member in said base member.