HINGE AND OFFICE MACHINE

To provide a hinge which can set a more proper torque curve through an entire opening/closing angular range of an opening/closing body with the increased independence and degree of freedom for setting of the torque curve within a second opening/closing angular range.SOLUTION: A hinge comprises: an attachment member which has a case part whose upper part is opened and is attached a device body side; a support member which is provided via a hinge shaft in the attachment member in a rotatable manner and supports an opening/closing body; a slider which slides in the vertical direction in the case part; and a compression coil spring which is elastically provided between the slider and the attachment member. The support member has a first operation cam part and a second operation cam part which protrude toward the case part and are in parallel to each other. The slider comprises: a first pressure reception cam part which is brought into pressure-contact with the first operation cam part; and a second pressure reception cam part which is brought into pressure-contact with the second operation cam part. The first operation cam part and the first pressure reception cam part form a first torque curve within a first opening/closing angular range of the attachment member and the support member. The second operation cam part and the second pressure reception cam part form a second torque curve within a second opening/closing angular range of the attachment member and the support member.SELECTED DRAWING: Figure 3 【課題】第２開閉角度範囲のトルク曲線の設定の独立性と自由度を増して開閉体の全開閉角度範囲を通じたより適正なトルク曲線の設定ができるヒンジを提供する。【解決手段】上部が開放されたケース部を有し、前記装置本体側に取り付けられる取付部材と、この取付部材にヒンジシャフトを介して回転可能に設けられ、前記開閉体を支持する支持部材と、前記ケース部内を上下方向にスライドするスライダーと、このスライダーと前記取付部材の間に弾設された圧縮コイルスプリングと、を有し、前記支持部材は、前記ケース部に向かって突出して並行する第１作動カム部及び第２作動カム部を有し、前記スライダーは、前記第１作動カム部に圧接する第１受圧カム部と、前記第２作動カム部に圧接する第２受圧カム部と、を有し、前記第１作動カム部と前記第１受圧カム部は、前記取付部材と前記支持部材の第１開閉角度範囲で第１トルク曲線を形成し、前記第２作動カム部と前記第２受圧カム部は、前記取付部材と前記支持部材の第２開閉角度範囲で第２トルク曲線を形成する。【選択図】図３