SHAFT JOINT, COUPLER HAVING THE SAME AND JOINT STRUCTURE FOR IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a shaft joint for an image forming device which can eliminate axial dislocation between a driving shaft on the side of an image forming device main body and a driven shaft on the side of a replaceable unit, and enable easy replacement. SOLUTION: This shaft joint has an outer ring member loosely fitted to a shaft end of a driving shaft 32 and a driven shaft 33 with an end loosely fitted into the outer ring member. The outer ring member 34a is connected to the driving shaft by being loosely inserted into a first pin 37 penetrating the shaft end of the driving shaft. The driven shaft 33 is connected to the outer ring member 34a by penetrating a second pin 40 attached in a diameter direction of the outer ring member 34a and arranged perpendicularly to the first pin 37.