| 摘要 |
The gearwheel (21) is between the unloading arm (8) and a fixture console (10) in a joint part (9) in the arm. The gearwheel engages a cogged rod (20) which activates a gas spring unit (17) fixed in the arm. Through rolling action between the gearwheel and the cogged bar the gas spring central axis forms a constant angle with the suction arm (1) central axis. DESCRIPTION OF DRAWING - The figure presents a full sectional view of the device. Suction arm (1), arm joint part (9), unloading arm (8), fixture console (10), gas spring unit (37), cogged rod (20), gearwheel (21). |
