Patent ID: 6322097
Filing Date: 2001-11-27
Classification: B62B

Abstract:
A stroller, comprising:a stroller frame having front and rear legs and a seat frame secured to said front and rear legs;a backrest having left and right supporters mounted pivotally and respectively on two opposite sides of said seat frame adjacent to said rear legs for turning upwardly and rearwardly relative to said stroller frame away from said seat frame, and downwardly and forwardly relative to said stroller frame toward said seat frame;left and right positioning members respectively having left and right swingable pieces, and left and right locking protrusions, said left and right swingable pieces being mounted pivotally and respectively on two opposite sides of said stroller frame adjacent to said left and right supporters of said backrest, resepctively, and having respectively left and right bottom edges formed with a plurality of spaced apart and aligned locking grooves which open downwardly, said left and right locking protrusions projecting respectively from said left and right supporters to engage selectively and releasably one of said locking grooves in said left and right bottom edges for positioning said backrest, said left and right swingable pieces being rotatable relative to said stroller frame so as to move upwardly and rearwardly to an unlocking position for disengaging said locking grooves in said left and right bottom edges from said left and right locking protrusions, and to move downwardly and forwardly to a locking position for engaging said locking grooves in said left and right bottom edges and said left and right locking protrusions; anda releasing unit including a pulling member mounted movably on said backrest between said left and right supporters for moving upwardly and downwardly relative to said backrest, left and right pushing members mounted movably and respectively on said left and right supporters for moving said left and right swingable pieces of said left and right positioning members to said unlocking position, and left and right urging members that urge respectively said left and right pushing members to move away from said left and right swingable pieces, said pulling member including a vertically extending rigid rod member mounted movably on said backrest between said left and right supporters, a connecting block that is connected to a lower end of said rod member and that has a through-hole, and a single flexible string passing through said through-hole in said connecting block and extending sidewisely from said through-hole to be connected to said left and right pushing members.