Abstract: A ring assembly for a curtain includes a first ring and a second ring located on two sides of the curtain sheet and the first ring has a first hole and multiple protrusions extend from a side of the first ring. The second ring has a second hole and multiple engaging slots are defined through the second ring. Each engaging slot includes a reception port and at least one restriction port which communicates with the reception port. A neck path is defined between the reception port and the at least one restriction port. The protrusions extend through the curtain sheet and into the reception ports of the second rings and the second rings are rotated to force the protrusions to pass through the neck path and be engaged with the at least one restriction port.

Abstract: A ring assembly for curtains includes a first ring located on the outside of the curtain sheet, a second ring located on the inside of the curtain sheet and a cover ring connected to the first ring. The second ring includes first protrusions which extend through the curtain sheet and are engaged with first apertures in the first ring to clamp the curtain sheet between the first and second rings. The cover ring includes second protrusions which are engaged with the second apertures in the first ring so as to hide the first apertures and the first protrusions in the first apertures.