Back to results
US 4,301,109 AGranted
Method of molding a suspension idler
OwnerArthur F. Kaininventor
Life of this patent
Estimating the term…
Abstract
A conveyor suspension idler mold apparatus for molding a one-piece, elongated, flexible, polymer idler is disclosed along with a method of molding the conveyor idler and the conveyor idler apparatus. A vertical mold has specially shaped cavities for molding the idler without entrapping air, along with shafts positioning and support brackets at each end of the mold for molding a metal shaft into each end of the polymer idler. The shafts positioning and supporting brackets utilize the groove for the bearing retaining ring for locking each shaft into position.
Claims4
A method of making a suspension idler of a molded polymer material comprising in combination:
- making a vertical mold having a plurality of shaft mold portions spaced between a plurality of roller mold portions, said roller mold portions having angled sides angling from said shaft portions to the perimeter of each said roller portion, whereby vertical molding can be accomplished without entrapment of air;
- attaching a shaft having an anchor on one end portion to a shaft support bracket at each end of said vertical mold and protruding through an opening in said mold, each said shaft being positioned by closing said mold to lock each shaft in a supported position to said shaft support brackets;
- filling said mold with a liquid polymer from the bottom thereof;
- and
- curing said polymer and removing said molded suspension idler having end shafts thereon from said mold.
2 more elements
Dependencies are inferred from the claim text.