Invention Grant
US07761988B2 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.: US10563850
    Application Date: 2004-06-02
  • Publication No.: US07761988B2
    Publication Date: 2010-07-27
  • Inventor: Bodo RorigPeter Spitzer
  • Applicant: Bodo RorigPeter Spitzer
  • Applicant Address: DE Herzogenaurach
  • Assignee: Schaeffler KG
  • Current Assignee: Schaeffler KG
  • Current Assignee Address: DE Herzogenaurach
  • Agent Charles A. Muserlian
  • Priority: DE10330881 20030709
  • International Application: PCT/EP2004/005922 WO 20040602
  • International Announcement: WO2005/005788 WO 20050120
  • Main IPC: B21K1/12
  • IPC: B21K1/12
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 a cup-shaped base body (16) having an inverse U-shaped cross-section is deep drawn, and opposing running contact surfaces (14, 15) for high-lift cams are created on arms (4, 5) of the outer lever (1) by punching out a bottom (19) of the base body (16). Through the deep drawing method of the invention, only relatively low fabrication costs are to be expected.
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