| 摘要 |
The present invention has six supporting raised parts of the elevation body of which three of them are longer than the rest so that the long and short parts are arranged alternately. The conventional gear fuller's size is limited, so one must change the gear fuller to separate the other larger gears and bearings. However, the present invention has the following merits: it is possible to separate larger gear and bearings during operation on time; the hanging grooves of jaws are made toward only one direction, not adversely; the both hanging grooves of jaws and the controlling holes are made at different distances to each other, so that it is possible to work in accordance with the size of objects by adjusting the controlling holes; the grooves and lever are made on the supporting raised part of the elevation body, so that it is possible to work conveniently if one hangs the plate pin, which is projected from the supporting raised parts' grooves by moving up the lever at the supporting raised part of the elevation body, to the supporting raised grooves; with iron bearings in the cap. Only the stick of the screw is rotated and the cap of the screw remains motionless so that the problem of the conventional gear fuller, namely that the cap and screw rotate simultaneously, is solved. |
