Patent ID: 8840125

Claim:
A rollator with an improved braking device, comprising: a main frame body including a support frame assembly, a handgrip unit pivoted to a rear top side of said support frame assembly, and at least three wheels mounted pivotally to a bottom portion of said support frame assembly, said handgrip unit being pivotable relative to said support frame assembly between a depressed position and a non-depressed position; and at least one braking device including a brake wire unit connected to said handgrip unit and fixed to said support frame assembly, and a brake fixed to said support frame assembly at a location proximate to one of said wheels and connected to said brake wire unit, said brake including a casing connected fixedly to said support frame assembly, a sliding member connected to said brake wire unit and slidable relative to said casing, a stop member connected to one end of said sliding member that is proximate to said one of said wheels, and a gear connected coaxially to said one of said wheels, said stop member being movable between a free position, where said stop member is spaced apart from said gear, and a braking position, where said stop member is engaged with said gear; when said handgrip unit is pivoted from said non-depressed position to said depressed position, said brake wire unit is displaced to move said brake, so that said stop member is moved from said braking position to said free position, and said wheels are free to rotate; and when said handgrip unit is restored from said depressed position to said non-depressed position, said brake wire unit is displaced to move said brake, so that said stop member is moved from said free position to said braking position, and said wheels are prevented from rotation; wherein said handgrip unit includes two handgrips, each of which is pivotable relative to said support frame assembly between said depressed position and said non-depressed position, each of said handgrips including a lever pivoted to said support frame assembly, a tubular sleeve sleeved slidably on and covering said lever, and a warning portion disposed on one end of said lever that is distal from said support frame assembly, when said tubular sleeve is pushed inwardly of said lever, said warning portion is exposed from said tubular sleeve and said handgrip is retained in said depressed position.