| 摘要 |
Consists of two coated plates with three and two rotating clamps, keeping two supporting points for each node, of which the first, or highest, is situated a very short distance from the upper end of the hinge as a result of which its hinge pin has to be inserted from bottom to top, while the remainder are inserted from top to bottom, its upper head has a circumferential groove to hold a captive screw of high reliability that is embedded in a blind housing in the corresponding trim piece, with less oversizing for the said captive screw, in the same way that the fixing holes have the first very high and the lower ones not interfering with the short ones that can be made to adapt to different heights from the normal, with signs to avoid later measurements and with its security pivots situated alternately in the projection of the node over the bands, and the supporting clamps have octagonal washers with flat exteriors projecting over each node and of sufficient thickness to house, coaxially, a bearing that improves the turning. <IMAGE>
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