Patent ID: 8607840

Claim:
A roller shutter, comprising: a series of links, each of which comprising: a link plate having a front surface and a rear surface, two opposite longitudinal edges and two opposite transverse edges, and eccentric hinge parts positioned near the longitudinal edges, wherein two adjacent links are hingedly connected to one another by the hinge parts, wherein the hinge parts comprise hinge pins and bushes extending from and touching the front surface distributed at regular intervals along the longitudinal edges, and the bushes on one of the end faces are offset with respect to the bushes on another end face of a link so that the bushes of two adjacent links engage with one another, the hinge pins being loosely accommodated in the bushes, wherein said series of links are configured to be moved between a rolled up stated and an unrolled state by being moved along at least one guide rail and then rotated in a first direction with respect to one another and wherein the links are configured such that in the unrolled state, adjacent links touch each other to define a substantially flat plane, wherein the bushes, on at least one of the longitudinal edges, each define a cavity having an elongated, oval shape, viewed in a direction from one of the longitudinal edges to the other longitudinal edge, into which the hinge pins fit such that the links are moved between an open position in which the longitudinal edges of adjacent link plates are at a distance from each other and allow rotation of said links in said first direction, and a closed position in which the series of links are in an unrolled, flat state, and the links are in sealing engagement with each other, and wherein each of the links comprises first stop surfaces that prevent rotation of the links with respect to one another in said first direction when in the closed position.