Pin insert

专利名称：Pin insert

发明人：Richard C. Fuksa,Jun Zhu申请号：US10752651申请日：20040107

公开号：US20040140006A1公开日：20040722

专利附图：

摘要：A valve pin insert has a body for insertion into a valve plate and a stud integrallyformed with the body and extending from one end of the body above the valve plate.The body has a lower shank at an end of the body that is opposite from the end at whichthe stud is positioned, and an upper shank at the end of the body adjacent to the end of

the body at which the stud is positioned. The lower shank is of a lesser diameter than theupper shank and an undercut shoulder between the shanks forms a recess opening in thedirection toward the lower shank and forms a tooth which shears material of the valveplate as the pin is inserted into a hole in the valve plate. The insert is a relatively harderplastic and the valve plate is a relatively softer plastic. In one form, the undercutshoulder extends radially inward beyond the surface of the lower shank to form anaxially outwardly facing shoulder on top of which valve plate material flows when the pinis inserted into the valve plate so as to hold the pin in the plate.

申请人：FUKSA RICHARD C.,ZHU JUN

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