Automatic folding frame for baby carriage

An foldable frame for a baby carriage, including a pair of laterally spaced arms movable inwardly towards each other when the carriage is moved to a folded position, a flexible handrail, and a pair of two-way toggle joints for connecting opposite ends of the handrail to the pair of arms, each two-way toggle joint comprising:

• a butt joint fixedly connected to a respective end of the handrail, the butt joint having a pair of spaced apart lips and a stop member extending between the lips along one side thereof;
• and
• a joint stand having a pair of spaced apart lips, the lips of the butt joint being received between the lips of the joint stand and pivotally connected thereto by means of a pivot member for permitting horizontal pivotal movement of the handrail relative to the arms, a latch member pivotally mounted between the lips of the joint stand, a spring for biasing the latch member into engagement with the pivot member, a linking block having one end pivotally connected within an aperture extending through the joint stand and an opposite end fixed within a channel formed in a respective arm, and a groove formed within a forward end of the arm for receiving a portion of the latch member when the handrail in a fully extended position for preventing pivotal movement of the joint stand relative to the arm, the latch member being disengaged from the groove by the stop member when the handrail is pivoted horizontally to a folded position for permitting vertical pivotal movement of the joint stand and the folded handrail relative to the arm.