| 摘要 |
Handling door which can be raised vertically, for industrial purposes, of the shutter door type, comprising, for the closing of an opening, a shutter which may be flexible or consist of rigid panels articulated to one another, reinforced by reinforcement bars whose ends are guided in slideways formed by a bottom (7) and two guiding walls, a first wall (8) against which the shutter is applied in the lowered position, and a second wall (9), the said slideways consisting of, or being formed by, lateral struts belonging to a frame surrounding the opening, the width of each slideway being reduced at its lower part, by means of a filling element (10, 20) accommodated inside the slideway, against the bottom of the slideway and against the said second guiding wall, the said element having a guiding incline comprising a guiding surface (21) and a positioning surface (24) opposite the said first guiding wall of the slideway, sloping from the lower part towards the said second guiding wall, to delimit with the said first wall a positioning volume narrowed towards the lower part, and a clearance surface (23), opposed to the bottom of the slideway, characterised in that the clearance surface slopes from the lower part towards the bottom of the slideway, by an angle lying between approximately 1 and 10 DEG , preferably between 2 and 5 DEG , so that the horizontal spacing between the clearance surfaces of the two slideways of the two vertical lateral struts opposite each other increases towards the top. …<IMAGE>… |
