| 摘要 |
PURPOSE: A hanging banner of notice board is provided to control the height of a banner with the rotation of a helical axis and stand a display individually in the desired height. CONSTITUTION: A driving axis(131) forms a combining hole for inserting a knob for rotation. A helical axis(111) goes in gear with a driving bevel gear combined in a driving shaft and a linking bevel gear combined in the lower part. Upper and lower support units(116, 117) are formed in top and bottom of an extrusion piece. An inserted tube(118) comprises both sides of a penetrated hole of the upper support and banner. It is inserted to the through-hole of the lower side support. |
