Patent ID: 9027625
Filing Date: 2015-05-12
Classification: B65H,E06B,G03B

Abstract:
1. A device for preloading of a rewind mechanism for a fabric arranged on an elongated tube of a roller blind or a projector screen, said rewind mechanism being arranged to be inserted into said tube and including a spring, that is tensioned when the fabric is rolled out and is relieved when the fabric is rolled up onto the tube, said device including an outer mounting element, that is arranged to be attached to the tube, and an inner mounting element, that is arranged to be attached to an outer bracket, said mounting elements being rotatingly arranged in relation to each other about a longitudinal axis of said tube, wherein a spring element is arranged between said mounting elements, wherein the spring element has a first end that is attached in relation to the outer mounting element, and a second end that is attached in relation to the inner mounting element, wherein the spring element includes an outer sleeve in which an entirety of said spring is arranged, wherein the spring has an outer diameter that decreases when tensioning the spring, wherein the outer sleeve has an inner diameter that is smaller than the outer diameter of the spring in an untensioned condition, wherein the spring is arranged in a pretensioned condition to abut against the outer sleeve, wherein the outer sleeve is attached to the outer mounting element, and wherein the spring has one of its ends attached to the inner mounting element and the other end attached to the outer sleeve.