Chair structure
US6935698B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 24, 2004 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Mar 24, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/18
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An improvement of a chair structure is disclosed. The chair comprising a back, a sitting pad, a supporting mechanism and a bottom cover characterized in that the supporting mechanism is provided with a securing element which allows mounting of a horizontal supporting tube; the bottom of the sitting pad is provided with a base plate having screw holes and securing hole for the bottom cover; such that screw nuts pass through the securing hole and the horizontal supporting tube to the screw hole of the base plate and the sitting pads mounted onto the supporting mechanism; the base cover is provided with a securing stud and a screw limiting stud and the securing stud is engaged to the securing hole and the base cover is secured to the bottom of the sitting pad and the horizontal supporting tube is enclosed and the limiting stud urges the screw nut so that the screw nut is prevented from dislocation to ensure the support force of the chair is stable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.