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Chair seat structure

  • US 20070170754A1
  • Filed: 01/25/2006
  • Published: 07/26/2007
  • Est. Priority Date: 01/25/2006
  • Status: Abandoned Application
First Claim
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1. A chair seat structure, comprising;

  • an upper metallic covering sheet, the upper metallic covering sheet formed as a shell having a concave shaped upper side, and a hollow portion on a bottom side thereof;

    a main body disposed in the hollow portion of the upper metallic covering sheet and having a downwardly projecting edge portion circumscribing a perimeter thereof, the upper metallic covering sheet having a circumferential side portion pressed against the perimeter of the main body and having a step-shaped section adjacent a lower edge thereof, the lower edge of the upper metallic covering sheet having an upwardly curled contour encompassing the downwardly projecting edge portion of the main body, whereby the upper metallic covering sheet tightly encompasses the main body to form an integral unit; and

    a lower covering sheet joined to the upper metallic covering sheet, the lower covering sheet formed as a shell and having a concave shaped bottom side, the lower covering sheet having a circumferential holding portion securely engaged with the step-shaped section of the upper metallic covering sheet.

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