초록 ▼

A molded plastic basket for a shopping cart includes side and front walls formed of a molded gridwork of ribs extending at an angle relative to the upright direction of the basket when it is assembled to a shopping cart chassis. The front and side walls intersect each other along convex arcuate curv

A molded plastic basket for a shopping cart includes side and front walls formed of a molded gridwork of ribs extending at an angle relative to the upright direction of the basket when it is assembled to a shopping cart chassis. The front and side walls intersect each other along convex arcuate curved corner sections with the gridwork ribs continuously flowing around the corner sections up to a mold parting line provided midway around the curved sections. The ribs of the side walls extend parallel to each other to permit molding of the side walls by a transversely moveable mold section that moves towards and away from the side wall area during molding and the ribs of the front wall likewise all extend parallel to each other in a direction generally perpendicular to the direction of the side wall ribs to enable molding of the ribs of the front wall by another moveable section of a mold that moves in a direction generally perpendicular to the direction of motion of the mold section forming the side walls. The gridwork ribs come together along the mold part lines to provide an attractive appearance.

대표청구항 ▼

[ What is claimed is:] [1.] A basket for a shopping cart comprising:upright longitudinally extending opposed side walls of molded plastic material integrally joined by molding to opposed ends of a transversely extending upright front wall of molded plastic material along upright mold parting lines;s

[ What is claimed is:] [1.] A basket for a shopping cart comprising:upright longitudinally extending opposed side walls of molded plastic material integrally joined by molding to opposed ends of a transversely extending upright front wall of molded plastic material along upright mold parting lines;said side and front walls formed of a gridwork of periodically spaced, mutually perpendicular intersecting gridwork ribs extending lengthwise in a non-upright direction relative to the upright direction of the side walls and front wall, and heightwise generally perpendicular to said side and front walls;said side walls each including a planar section terminating at a respective one of said parting lines at a convex circular curved front end section;the front wall having a planar central section and opposed convex circular curved end sections terminating at a respective parting line;said gridwork ribs each having a generally trapezoidal shape in cross-section, including a generally planar inner edge having a given width; an outer tip spaced heightwise from the inner edge and extending across a shorter width dimension than said inner edge, and laterally spaced, converging, generally planar rib side walls extending heightwise between said inner edge and said tip;said gridwork rib inner edges collectively forming the inner surfaces of said side and front walls, and said gridwork rib tips collectively forming the outer surfaces of said side and front walls;at least the tips of said gridwork ribs of the curved end sections of he front and side walls intersecting each other along said parting lines;said gridwork ribs in cross-section each including a major height axis extending heightwise between the inner edge and outer tip;said gridwork ribs each having a uniform inner edge width throughout their lengths;the major height axes of the gridwork ribs of the front wall all extending parallel to each other;the major height axes of the gridwork ribs of the opposed side walls all extending parallel to each other and perpendicular to the major height axes of the gridwork ribs of the front wall throughout the respective lengths of the gridwork ribs.