Patent ID: 7826769

Claim:
An image forming device, comprising: a main body; a swing body attached to the main body swingably around a first axis as a predetermined swing central axis thereof between a first state where the swing body is away from the main body and a second state where the swing body is close to the main body; an arm having a first end and a second end in a longitudinal direction thereof, the first end of the arm being attached to a first one of the main body and the swing body, swingably around a second axis parallel to the first axis of the swing body as a predetermined swing central axis of the arm, the second end of the arm being joined with a second one of the main body and the swing body, slidably to be close to or away from the first axis of the swing body; and a pressing member provided to the second one of the main body and the swing body, the pressing member being configured to establish contact with the second end of the arm and to press the arm toward the second axis of the arm in the second state, wherein the arm includes a contact surface that is provided to the second end of the arm and configured to contact the pressing member, the contact surface of the arm including a point of action that receives a pressing force from the pressing member, the contact surface of the arm being parallel to the second axis of the arm and slanted relative to a virtual plane perpendicular to an axial line of the arm that extends from the point of action toward the second axis of the arm, when the swing body is in the second state.