Invention Grant
US07797830B2 Method of making an outer lever of a switchable finger lever 有权
制作可切换手指杆的外杆的方法

  • Patent Title: Method of making an outer lever of a switchable finger lever
  • Patent Title (中): 制作可切换手指杆的外杆的方法
  • Application No.: US10563851
    Application Date: 2004-06-02
  • Publication No.: US07797830B2
    Publication Date: 2010-09-21
  • Inventor: Bodo RörigPeter Spitzer
  • Applicant: Bodo RörigPeter Spitzer
  • Applicant Address: DE Herzogenaurach
  • Assignee: Schaeffler KG
  • Current Assignee: Schaeffler KG
  • Current Assignee Address: DE Herzogenaurach
  • Agent Charles A. Muserlian
  • Priority: DE10330882 20030709
  • International Application: PCT/EP2004/005921 WO 20040602
  • International Announcement: WO2005/005787 WO 20050120
  • Main IPC: B21K1/12
  • IPC: B21K1/12 F01L1/18
Method of making an outer lever of a switchable finger lever
Abstract:
According to the present invention, an outer lever (1) of a finger lever (2) that can be switched to different lifts for at least one gas exchange valve is made by a deep drawing method. A salient feature of the invention is that through a special trimming operation of the cup-shaped base body (16) that is formed in a first step of the method, running contact surfaces (14, 15) for cams, preferably high-lift cams, are generated on upper sides (12, 13) of arms (4, 5) of the outer lever (1). Through the deep drawing method of the invention, only relatively low fabrication costs are to be expected.
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