| 摘要 |
PURPOSE: To open a sleeve at a high working speed with reliability by moving an ejector by a distance longer than the length of the pivot levers, and reciprocating the same along the V-shaped bearing-planes in synchronization with the spin movement of a distribution rocker. CONSTITUTION: A static fold contact body 10 having a V-shaped abutment in opposition to the outermost spin position of a centering web 56 is fixed on a distribution rocker 20. Two bearing planes 14 formed on the pivot levers 13 having the vacuum apertures 24 at both sides thereof, can be spun in such a manner that they cross the V-shaped roofs corresonding to two adjacent side faces 71, 72 of the opened sleeve 2. An ejector 7 comprises a square plate on its front part, is moved by a distance longer than the length of the pivot levers 13, and reciprocated along the V-shaped bearing planes 14 in synchronization with the spin movement of the distribution rocker 20. |
