Hinge and office machine using same

The invention provides a hinge and an office machine using the same, the hinge can increase independence and degree of freedom when a torque curve of a second opening and closing angle range is set, and proper torque curves can be set in all opening and closing angle ranges of an opening and closing body. The hinge connects an opening and closing body to a device body so as to be opened and closed, and comprises: a mounting member which has a box part with an open upper part and is mounted on the side of the device body; a support member which is assembled to the mounting member through a hinge shaft so as to be rotated, and supports the opening and closing body; a slider that slides up and down in the cartridge part; and the compression spiral spring is elastically arranged between the sliding piece and the mounting piece. 本发明提供一种铰链及使用此铰链的办公机器，该铰链可在设定第二开合角度范围的扭矩曲线时增加独立性及自由度，并可在开合体的所有开合角度范围均设定适当的扭矩曲线。该铰链相对于装置本体连结开合体使其得以开合，其包含：安装件，其具有上部开放的盒部并安装在装置本体侧；支持件，其通过铰链轴组装至该安装件而得以旋转，并支撑该开合体；滑动件，其在该盒部内上下滑动；以及压缩螺旋弹簧，其弹设在该