|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 5|
An apparatus for spin forming two partial wheel rims including a mandrel having a first portion for spin forming a first partial wheel rim and second portion for spin forming a second partial wheel rim. The first and second portions of the mandrel have different shapes such that the first and second wheel rims have different shapes. The mandrel is mounted upon a spin forming machine and is utilized to spin form a hoop of metal into a double wheel rim which is split to form the two partial wheel rims.
[ What is claimed is:] [1.] A mandrel for spin forming partial vehicle wheel rims, the mandrel comprising:a first portion having a first shape, said first shape including a cylindrical portion adapted to form a cylindrical end portion of a first partial wheel rim, said first portion adapted for spin forming a first portion of a metal hoop into a first partial wheel rim having a shape corresponding to said first shape of said first mandrel portion, said first partial wheel rim including a cylindrical end portion which is adapted for attachment to a first ...