Method of making mold专利检索-原位固化法排水系统专利检索查询-专利查询网

Method of making mold

阅读：11发布：2022-01-15

专利汇可以提供Method of making mold专利检索，专利查询，专利分析的服务。并且Apparatus for molding a composite styled wheel for use on automotive passenger vehicles and the like, a method of constructing such a wheel employing the molding apparatus and a method of constructing such molding apparatus, wherein a portion of the mold comprises a conventional metal vehicle wheel having a drop center rim secured to a central disc or body having the usual bolt circle holes and a central aperture so that the disc can be mounted on an axle, drum or disc brake assembly. The metal wheel is employed in conjunction with an upper back-up clamp and lower mold part to define therewith a sealed cavity for molding and attaching a three-dimensional contoured plastic overlay, the overlay thus being molded in situ and permanently attached to the outboard side of the wheel in the mold apparatus. Preferably, the wheel forms the upper surface of the mold cavity and a reaction mixture of a urethane elastomer liquid adhesive material is injected or poured into the mold to fill the cavity and contact the outboard surface of the wheel assembly. The urethane material solidifies to form a high density noncellular elastomer body which permanently adheres to the outboard surface of the wheel subassembly. The plastic overlay may also be constructed from a lower density microcellular closed cell urethane elastomer adhesive material. The urethane material is allowed to solidify in the mold cavity and then the mold is opened so that the wheel with the overlay securely adhered to it may be removed from the mold. The overlay may then be painted or otherwise covered with a decorative coating to provide a finished metallic-appearing ornamental wheel. The urethane elastomer thus forms a plastic body having a three-dimensional contour which is permanently attached to the outboard side of the wheel to provide a decorative surface, and the elastomer overlay appears to be an integral portion of the metal wheel.，下面是Method of making mold专利的具体信息内容。

权利要求

2. providing a lower mold part having an annular lip adapted to seat against an annular portion of the outboard face of said subassembly radially outwardly of the center of the disc, the mold part having a surface contoured to provide an ornamental configuration for the outboard face of said wheel and adapted to define with at least part of the outboard face of said subassembly a mold cavity axially adjacent the outboard face thereof;

2. The method as set forth in claim 1 wherein said disc has a center hole and said lower mold part is provided with a central locating core projecting into said cavity coaxially with said disc center hole, and further including the step of registering a central portion of said upper mold part with the protruding end of said core to thereby form a core wall in said cavity radially inwardly of said annular lip portion of said mold part.

3. placing said wheel subassembly against said mold part with said annular portion of the outboard face of said subassembly in sealing engagement with the annular lip portion of said mold part;

3. The method as set forth in claim 1 wherein said disc is provided with a plurality of holes adapted to receive wheel mounting fasteners therethrough and said lower mold part is provided with a plurality of locating pins protruding therefrom parallel to the axis of the wheel disc and rim subassembly when mounted on said mold, said pins being adapted to register with said disc holes, and further including the step of circumferentially locating said disc with said holes thereof in registry with said pins of said lower mold part as said disc is placed against said lower mold part in step (3) of claim 1 whereby said pins protrude through said disc holes when said disc and rim subassembly is fully seated in said sealing engagement on said lower mold part.

4. The method as set forth in claim 1 wherein said disc is provided with a plurality of vent openings arranged in a circular row radially intermediate said rim and the central portion of said disc and said lower mold part is provided with a plurality of bosses protruding parallel to the axis of the disc and rim subassembly when placed on said lower mold part and adapted to register with said vent openings, and further including the step of seating said disc on said lower mold part with said bosses registering with said vent openings as said disc is placed against said lower mold part in step (3) of claim 1 so that said bosses protrude into said vent openings when said disc and rim subassembly are fully seated in said sealing engagement on said lower mold part.

4. orienting said subassembly and mold part with their axes upright and said mold part beneath said subassembly whereby said subassembly serves as the lid for said mold cavity;

5. providing an upper mold part having at least one arcuate portion with a configuration adapted to seat against the inboard face of said disc and rim subassembly;

5. The method as set forth in claim 1 wherein said step (1) of claim 1 comprises securing said rim to said disc by circumferentially spaced welds between the outer periphery of said disc and the inner periphery of said rim such that slight gaps are provided therebetween intermediate said welds to thereby provide vent openings to said cavity in the closed condition thereof for receiving liquid material when the cavity is being filled with such material in the pouring of said mold.

6. and urging said upper mold part against said disc after said step (3) to thereby retain said subassembly in said sealing engagement with said lower mold part.

说明书全文

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