Invention Grant
US09072977B1 Playground swing 有权
游乐场秋千

  • Patent Title: Playground swing
  • Patent Title (中): 游乐场秋千
  • Application No.: US14135850
    Application Date: 2013-12-20
  • Publication No.: US09072977B1
    Publication Date: 2015-07-07
  • Inventor: Powell Cutts
  • Applicant: Powell Cutts
  • Main IPC: A63G9/16
  • IPC: A63G9/16 A47D1/10
Playground swing
Abstract:
A swing device and method of swinging a swing, by the person in the swing, including an arrangement adapted to transmit a downward arm force, from the person swinging to a forward and backward swinging motion. The device includes at least two hanging handles, length adjustable and guided which at its end has a means to grip by handle. Pulling on either handle at alternate times will deliver force to a force translation apparatus, which will redirect the energy from the handles into forces on the upper portion of the swing chains to pull the swing forward and backwards.
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