发明授权
US3823935A Machine for turning-in the edge of a piece of flexible sheet material, especially a textile fabric 失效
机床用于柔性片材料的边缘,特别是纺织面料

Machine for turning-in the edge of a piece of flexible sheet material, especially a textile fabric
摘要:
The machine comprises: a structural frame; a plate for supporting the piece of material with respect to said frame at least along the border to be turned-in; an insetting device adapted to fold at right angles the border to be turned-in by means of a movement in a direction at right angles to said plate; a folding-back device adapted to turn back in a flat position against the support plate the border of the piece of material which has already been folded at right angles, by means of a movement parallel to said plate; and means for displacing the support plate in its own plane in the direction of displacement of the folding-back device in order to free the turned-in piece of material.
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