Device for connection between a canvas and a rail

Device for connection between a canvas and a rail, wherein a movement path in a translation direction is achieved, said device being capable of translating, substantially parallel to the translation direction, at least one point of this canvas, comprising:

• a first part defining a longitudinal axis and capable of being mounted engaged moving with the rail on said movement path in said translation direction, such that said longitudinal axis is substantially parallel to said translation direction,
• a second part,
• means, called “first means”, for securing this said second part to the point on a substantially straight segment of non-zero length, this said straight segment passing through this said point defining a holding direction for the canvas, and
• means, called “second means”, for rotatably mounting said second part with respect to the first part about at least one axis of rotation, said axis of rotation forming with the longitudinal axis, a first angle of non-zero value, such that said second part is capable of taking all positions between a first position and a second position,
• the first position being defined such that the holding direction for the canvas makes, with the longitudinal axis, a second angle of non-zero value, and
• the second position being defined such that said holding direction for the canvas is substantially parallel to the longitudinal axis,
• resilient constraint means called “third means”, mounted engaged between the first part and the second part so as to tend to return said second part into the first position when said second part has been constrained to take a position different from this first position under the effect of an external constraint force.