초록 ▼

An improved process for producing integral, composite handles having cushioned comfort grips, for appliances such as electric steam irons, comprising a first step of injection molding a one-piece handle substrate of strong, rigid, resinous composition having the desired predetermined shape and desig

An improved process for producing integral, composite handles having cushioned comfort grips, for appliances such as electric steam irons, comprising a first step of injection molding a one-piece handle substrate of strong, rigid, resinous composition having the desired predetermined shape and design, including a recessed, wrap-around area corresponding to the area of the handle which will be gripped by the hand of the eventual user of appliance. The present process comprises a second step of injection molding an integral, outer, soft, contoured layer of foamed resin into the recessed, wrap-around area of the rigid plastic handle substrate, to form a smooth, compressible, comfort grip surface area of the composite handle for engagement with the hand of the user.

대표청구항 ▼

[ What is claimed is:] [1.] A process for producing a composite handle for an appliance, which is strong, light in weight and has a compressible wrap-around grip portion which is comfortable to the hand of the user, comprising the steps of:a) providing a lightweight, rigid handle substrate having a

[ What is claimed is:] [1.] A process for producing a composite handle for an appliance, which is strong, light in weight and has a compressible wrap-around grip portion which is comfortable to the hand of the user, comprising the steps of:a) providing a lightweight, rigid handle substrate having a wrap-around section in a gripping area of the handle intended to be enclosed within the hand of the user, said substrate comprising a first vertically wide rib, a second horizontally wide rib, and a plurality of horizontally spaced vertical thin members integrally molded with the first and second ribs to form a shaped backbone,b) inserting said substrate into an injection mold as a core surrounded by a mold cavity enclosing said gripping area of the substrate;c) injecting a foam-forming resinous molding composition into said mold cavity;d) expanding at least a portion of the foam-forming resinous molding composition into the spaces between the vertical thin members to improve the bond between the foam layer and the substrate,e) curing the molding composition to form a compressible wrap-around layer about the gripping area of the rigid handle substrate, andf) removing the composite handle from the injection mold.