| 摘要 |
<p>PURPOSE:To facilitate design, parts production, and assembling work, to improve the precision of a mechanism, and to reduce the space by providing a mode forming system and its driving system for the normal mode and those for the reverse mode independently of each other. CONSTITUTION:A mode forming system 12 to form the normal mode and a mode forming system 12' to form the reverse mode are provided independently of each other, and driving systems 13 and 13' to drive mode forming systems 12 and 12' are provided only for mode forming systems 12 and 12' respectively. Two mode forming systems 12 and 12' are arranged on an about center of a chassis 5, and two driving systems 13 and 13' are arranged on its right and left sides. Thus, design, parts production, and assembling work are facilitated, and the precision of the mechanism is improved, and the space is reduced.</p> |
