Head feeding mechanism

专利名称：Head feeding mechanism发明人：Kazuya Tamura申请号：US10243098申请日：20020912公开号：US06914754B2公开日：20050705

专利附图：

摘要：A head lift body () with a head assembly () mounted thereon has a nut ()

engaged with a lead screw (). The head lift body has an integral structure formed by resinmolding with a through hole, a hollow opening, and a guide portion (). The through holereceives the lead screw inserted therethrough. The hollow opening is formed at the

center of the head lift body to accommodate a backlash preventing mechanism (). Theguide portion inhibits the rotation of the head lift body and guides the head lift bodymoving up and down along a rotation center axis of the lead screw. The backlashpreventing mechanism comprises a preload bushing () and a preload spring (). Thepreload bushing has an internal thread to be engaged with the external thread of thelead screw. The preload spring presses the head lift body against the preload bushingalong the rotation center axis of the lead screw.

申请人：Kazuya Tamura

地址：Isehara JP

国籍：JP

代理机构：Frishauf, Holtz, Goodman & Chick, P.C.

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