Opening / closing support apparatus and office machine

Abstract

To provide an opening / closing support apparatus capable of suppressing abrasion of a cam part caused by repeated opening / closing while ensuring a space for a torque generating part.SOLUTION: An opening / closing support apparatus 10 comprises: an attaching member 11 attached to an apparatus body 2; a support member 12 pivotally supported by the attaching member via a main shaft 16; a lifting member 13 that overlaps with the support member, and which is pivotally supported via a lift shaft 41 and attached to an opening / closing body 3; a slider 14 and a slider lift 15 slidably stored inside the support member; an elastic member 31 elastically disposed between the slider and the slider lift; and a pressure receiving pin 17 which is brought into pressure-contact with a cam part 14x of the slider. The attaching member has a pair of side plates; attaching holes are disposed on both side plates; a bush 28 is attached to each attaching hole; the pressure receiving pin 17 is pivotally laid between both side plates via the bush 28; and a dividing part that can be divided by the bush 28 in an axial direction to be contracted / expanded in a radial direction.SELECTED DRAWING: Figure 9

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