Roll-up divider
US5819835A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1995 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Sep 20, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G5/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A roll-up apparatus including a curtain suspended within a room to be divided or partially closed off and a roll member at the bottom edge of the curtain around which the curtain winds and unwinds. The curtain is raised by rolling the curtain up from the bottom around the roll member, and lowered by unrolling the curtain from around the roll member. Belts spaced along the width of the curtain are looped under the curtain wound roll member and windably attached to a motor driven take-up shaft. When wound around the take-up shaft, the belts are pulled upward to effect a rolling of the curtain around the roll member that raises the curtain. The belts are structured, such as by the provision of a coating material, to adhere to the material of the curtain to prevent belt slippage relative to the curtain and to thereby effect a relatively tight curtain winding. Crowned rollers which achieve a self-centering effect on the belts are also provided to cause the belts to wind about themselves on the take-up shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.