Treaded wheel

摘要

A wheel comprising: an inner hub including a first side, a second side being generally parallel to and opposite of the first side, an axle shaft emanating up from the second side, a plurality of inner spokes emanating up from the second side and outward from the axle shaft and engaging an inner circumferential member; an outer hub engaged to the inner circumferential member, a plurality of outer spokes emanating from the inner circumferential member, the outer spokes being engaged to the inner circumferential member at a proximal end of the spokes and engaged to an inner surface of an over mold substrate at a distal end of the spokes, the over mold substrate also having an outer surface being generally parallel to and opposite of the inner surface; and a over mold tread chemically bonded to the outer surface of the over mold substrate.

主权项

1. A method for manufacturing a wheel comprising the steps of:
loading primary pellets into a primary hopper on a primary injection molding machine; conveying said primary pellets from said primary hopper to a primary injection barrel; heating said primary pellets within said primary injection barrel to form a primary melted material; conveying said primary melted material to a primary injection cylinder; injecting said melted material into a primary injection mold forming a plastic hub including:
an inner hub including:
a first side;a second side being generally parallel to and opposite of said first side;an axle shaft emanating up from said second side; anda plurality of inner spokes emanating up from said second side and outward from said axle shaft and engaging an inner circumferential member;an outer hub engaged to the inner circumferential member, said outer hub including:
a first side;a second side being generally parallel to and opposite of said first side;a plurality of spokes emanating from the inner circumferential member
said spokes being engaged to said inner circumferential member at a proximal end of said spokes; andsaid spokes being engaged to an inner surface of an over mold substrate at a distal end of said spokes;said over mold substrate also having an outer surface being generally parallel to and opposite of said inner surface; removing said plastic hub from said primary injection mold; inserting said plastic hub into a secondary injection mold which is operatively associated with a secondary injection molding machine; loading secondary pellets into a secondary hopper on said secondary injection molding machine; conveying said secondary pellets from said secondary hopper to a secondary injection barrel; heating said secondary pellets within said secondary injection barrel to form a secondary melted material; conveying said secondary melted material to a secondary injection cylinder; and injecting said secondary melted material into a secondary injection mold forming an over mold tread which is chemically bonded to the outer surface of said circumferential member, said over mold tread comprising a mixture of a rubber, a polymer and a recycled polymer; wherein said outer spokes being generally narrower at their proximal end where they engage said inner circumferential member of said inner hub and gradually becoming broader as they traverse toward their distal end where they engage said inner surface of said over mold substrate; said spokes being either substantially straight or curved as they traverse from their proximal ends to their distal ends; and said spokes including an upper surface and a lower surface which are engaged to one another by an angled surface.