| 摘要 |
The skeleton structure of a garden/tea-garden umbrella, consisting of a centrally-positioned mast with a permanently fixed disk, which is equipped with sockets at its circumference. Elements of the canopy-supporting structure are mounted with articulated joints in the sockets. Below the immobile disk, there is at least one shifting disk, sliding along the mast and connected by means of articulated joints to the elements of the canopy-supporting structure, which the umbrella cloth is fixed to. It is characterised in that the canopy-supporting structure (4) of the umbrella consists of identical supporting assemblies (ZP), positioned radially with respect to the above-mentioned disks (5 and 8). Each assembly consists of a hanger arm (6), with one end connected with an articulated joint to the immobile disk (5), while the other end is connected with an articulated joint to the strutting arm (7). One end of the latter is connected with an articulated joint to the shifting disk (8), while its opposite end is connected with an articulated joint to the arm (9), which stretches cloth (4). The top end of the arm (9), which stretches the cloth (4) and is connected to the canopy (4), is connected with an articulated joint to one end of the coupling arm (10). The other end of the arm (10) is connected with an articulated joint to the formerly-mentioned hanger arm (6) at the section between the ends of the hanger arm (6). |
