DEVICE FOR TENSIONING OF SHEET MATERIAL Russian patent published in 2011 - IPC B41F15/36 

FIELD: printing industry.

SUBSTANCE: invention relates to the field of printing. The device for tensioning of a sheet material comprises four angular parts arranged in positions corresponding to four angles of a rectangle, four parts of a frame located in positions corresponding to sides of a rectangle and supported at the opposite ends by angle parts for movement along sides, and also four rods passing through four parts of a frame accordingly. Two angular parts arranged at diagonals of the rectangle are equipped with a movement mechanism, which moves rods along sides of the rectangle. The device for tensioning of a sheet material additionally includes a transfer mechanism, with the help of which the rod motion along the rectangle side in direction from one angle part to the other angle part, making a pair with one angle part, or in the opposite direction, is transformed into movement of another rod coming from another angular part, in direction away from the other angle part or in when approaching.

EFFECT: group of inventions makes it possible to execute uniform tension of a sheet material along its whole surface with minimum quantity of adjustable positions.

19 cl, 39 dwg