| 摘要 |
<p>PURPOSE:To eliminate collision between two link members and to enable the device to be a thin type and also to reduce the dead space to half and then to promote the degree of freedom for designing the device by arranging one link member of a link mechanism on the back side of a chassis and arranging the other link member on the front side. CONSTITUTION:The link member 31 is arranged on the front side of the chassis 4, i.e. between the chassis 4 and a guide rail plate 12, and a gear 33 for driving the link member 31 penetrates through an opening 40 formed on the chassis 4 to go through the chassis to its back side, where it is meshed with a gear 32 for driving the other link member 30. Thus, the two link members 30 and 31 are arranged on the front side and the back side of the chassis 4, respectively. By this method, at the time of unloading, even when the two link members 30 and 31 are largely turned to cross each other, these link members do not collide with each other, and the thin type formation is feasible, and also the dead space due to a turning operation of the link members is reduced by half, thus increasing the degree of freedom for designing the device.</p> |
