| 摘要 |
<p>The blade to arm fixing has two mounting hooks (2,3). These are joined by a central rod (1) and are symmetrical and perpendicular relative to it. The inside of the hooks are turned towards the rod. The rod has a central cylindrical part (9) with two parallel end shoulders (10,11). A joining piece (8) is on the cylinder and pivots with slight friction. It is U shaped and the bottom partly surrounds the rod centre. The arm side faces (12,13) press on the shoulders (10,11). The arm width (17) is less than the diameter of the cylindrical part.</p> |
