Patent ID: 8191919

Claim:
A locking device for a stroller, the stroller including a pair of side frames and a base frame, each of the side frames including a front upper frame, a front lower frame pivotally connected to the lower end of the front upper frame at the upper end thereof, a rear frame pivotally connected to the front upper frame at the upper end thereof, and a side connecting frame pivotally connected between the front lower frame and the rear frame, the base frame being pivotally connected between the pair of side frames, the locking device comprising: an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames; a locking member slidably provided on the articulated mechanism for locking the articulated mechanism; and a pair of side braces pivotally connected to the locking member at one end thereof respectively and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, wherein the articulated mechanism includes a pair of upper braces, a pair of lower braces and a vertical brace, the pair of upper braces being pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, the pair of lower braces being substantially parallel to the pair of upper braces and pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, and the vertical brace being pivotally connected to the ends of the pair of upper braces at the upper end thereof and pivotally connected to the ends of the pair of lower braces at the lower end thereof, wherein the locking member is slidably provided on the vertical brace of the articulated mechanism, and has a latch integrally formed thereon that is abutted against an upper end of the vertical brace of the articulated mechanism, the latch including a latch body formed of a flexible and resilient material such that the latch is deformed against a restoring force of the latch body during a folding operation of the frames, and wherein the latch is operative to be removed from the upper end of the vertical brace of the articulated mechanism.