Patent ID: 8769742

Claim:
A device, comprising: a flexible material; and a roll mechanism accommodated within a body of the flexible material; the roll mechanism is comprised of: a first bistable resilient member having a first longitudinal axial length that is oriented substantially parallel along a desired rolling direction of the flexible material, substantially perpendicular to a desired roll axis of the flexible material, and substantially parallel a first lateral edge of the flexible material; a second bistable resilient member having a second longitudinal axial length that is oriented substantially parallel along the desired rolling direction of the flexible material, substantially perpendicular to the desired roll axis of the flexible material, and substantially parallel a second lateral edge of the flexible material; the first bistable resilient member and the second bistable resilient member accommodated within the flexible material are positioned substantially equally distanced away from the respective first and second lateral edges of the flexible material to allow the roll axis to be maintained substantially perpendicular to a central longitudinal axis of the flexible material during roll of the flexible material for a linear roll of the flexible material into and out of a substantially right-circular cylindrical configuration; the roll mechanism is further comprised of: a first rigid element accommodated within the body of the flexible material and associated with a first distal ends of the first and the second bistable resilient member; the first rigid element having a first longitudinal axial length that is oriented substantially perpendicular the desired rolling direction of the flexible material, substantially parallel to the desired roll axis of the flexible material, and substantially perpendicular the first and the second lateral edges of the flexible material; a second rigid element accommodated within the body of the flexible material and associated with a second distal ends of the first and the second bistable resilient member; the second rigid element having a second longitudinal axial length that is oriented substantially perpendicular the desired rolling direction of the flexible material, substantially parallel to the desired roll axis of the flexible material, and substantially perpendicular the first and the second lateral edges of the flexible material; the first and the second longitudinal axial lengths of the first and the second rigid elements have spans that extend at least from the first resilient member to the second bistable resilient member to facilitate simultaneous application of force to both the first and the second bistable resilient members to initiate one of a transition state and stable states of both of the first and second resilient members together.