| 摘要 |
FIELD: personal use articles. ^ SUBSTANCE: collapsible seat for stadiums refers to the means of equipment of venues for public events. The seat is set with its lower part of the substructure (1). The seat is made of separate transverse elements (2), pressed to each other and put with their through-holes (3) on the node of rigid fixation elements. Flat elements have on the edges the closed circular curves (4). Node of rigid fixation is made in the form of two sides bent in the shape of the chair profile. Each of the sides is a set of segments of the steel tubes telescopically inserted into each other (5), (6), freely entered into through diametrical holes (8) in the tubes edges. The tubes are held in an axial direction with the pins (7). The sidewalls are screwed to the substructure with mounting screws (10). Limiters of axial displacements of the transverse elements are inserted into the upper sidewalls. Elliptical slots (11) are made in circular bends. In the sidewalls the holes (12) are made for free passage of screws, which provides axial adjustment and free exit of screws from the sides during fracture of fittings. ^ EFFECT: simplification of the assembly and recovery process, as well as increased functionality of the chair. ^ 1 cl, 1 dwg |
