Method of forming a thermoformed foam part

专利名称：Method of forming a thermoformed foam

part

发明人：Philip Stanley Baker,Kenneth James

Simmons,John Gardner Fuller

申请号：US10950948申请日：20040927公开号：US07303717B2公开日：20071204

专利附图：

摘要：A pair of form keys and a method for forming reverse drafts in foam parts aredisclosed. A male form key is reciprocally mounted in a first mold half in a retracted

position. A female form key is rotatably mounted in a second mold half in a neutralposition. The first mold half includes a first drive pin that when engaged, moves the maleform key into engagement with a foam sheet to form an undercut as the first and secondmold halves are closed. The first mold half also includes a second drive pin that engagesthe female form key as the first and second mold halves close rotating the female formkey into engagement with the foam sheet and the male form key. After closure of themold and the product is formed, the mold is opened. As this occurs, the drive pins aredisengaged and the male form key retracts and the female form key rotates to theirneutral positions. The formed product may then be stripped from the mold whilemaintaining the reverse draft or undercut. In a further embodiment the male form keyand the female form key are fluid actuated.

申请人：Philip Stanley Baker,Kenneth James Simmons,John Gardner Fuller

地址：Fairport NY US,Stanley NY US,Canandaigua NY US

国籍：US,US,US

代理机构：Baker Botts L.L.P.

更多信息请下载全文后查看