Lifting support frame and four-bar thereof

Lifting support frame and four-bar thereof

  • CN 101,452,747 A
  • Filed: 12/07/2007
  • Published: 06/10/2009
  • Est. Priority Date: 12/07/2007
  • Status: Active Grant
First Claim
Patent Images

1. [claim 1] a kind of four-bar mechanism, the some arm of force sheets that comprise first link, second link and be used to articulate this first link and second link, it is characterized in that:

  • offer spacing breach on this first link and this second link, this at least one arm of force sheet is provided with a limited bolt, and this spacing breach cooperates with this limited bolt in order to limit this four-bar mechanism and moves between first extreme position and second extreme position.

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