Patent ID: 6360400
Filing Date: 2002-03-26
Classification: A45C,Y10T

Abstract:
A controlling device for retractable wheels of a luggage barrow having a housing (10) which has a telescope handle assembly (70) provided at a back side thereof, the controlling device comprising:an L-shaped plate (20) secured on a bottom end of the back side of the housing (10) and defining two openings (22) therein; two wheel brackets (30) respectively formed with upper ends thereof pivotally connected with the L-shaped plate (20) at the openings (22) and lower ends thereof pivotally connected with two wheels (38); two linkages (40) respectively linked with the wheel brackets (30); two springs (48) respectively provided in the linkages (40); an inner plate (60) provided on an inner side of the housing (10) and fixed with the L-shaped plate (20), said inner plate (60) having two wheel recesses (62) defined therein corresponding to the openings (22), and two through holes (64) defined therein to receive lower ends of the telescope handle assembly (70); a connecting bar (56) extended through the lower end of the telescope handle assembly (70); and two pressing members (50) respectively comprising two upper ends thereof formed with two bent portions (54) pressed against upper ends of the linkage member (40), and two lower ends thereof respectively connected with two opposite ends of the connecting bar (56); whereby the wheels (38) connected with the wheel brackets (30) are able to be retracted into or extended out of the housing (10) via the pressing members (50) actuated by the telescope handle assembly (70).