| 摘要 |
PURPOSE: An opening or closing device of a manuscript pressing plate is provided to reduce the manufacturing costs by reducing the number of components to simplify composition. CONSTITUTION: An opening or closing device(35) of a manuscript pressing plate comprises an attachment member(37), a support member(38), and a rotation control unit(40). The attachment member comprises an attachment leg unit forming a burial hole(37a). The support member includes a hinge pin(36) on both plate units of the attachment member and is attached to be rotatable. The rotation control unit comprises an elastic unit(39) and a spring guide. The elastic unit is comprised of a tension coil spring, and one end is hung on a hanging unit in the burial hole while the other end is hung on a hanging hole(38a) of the support member. |
