Hinge

A hinge for coupling with a first object and a second object, the hinge comprising:

• a first wing member capable of attaching to the first object;
• a cam member fastened to the first wing member;
• a second wing member that is capable of attaching to the second object and rotatably coupled to the first wing member with a first rotating pin, and shifts between an open state and a closed state with respect to the first wing member;
• first and second sliders that are housed in the second wing member and move toward the cam member and away from the cam member;
• an energizing member that energizes the first slider toward the cam member until the first slider comes into contact with the cam member;
• and
• an oil fence that is disposed near and outside a contact parts of the cam member and a contact part of the first slider that are contacting to each other, prevents intrusion of a foreign matter into an area near the contact parts of the first slider and the cam member from outside of the first slider and the cam member, from the closed state to the open state of the second wing member, and one end of the oil fence being inserted into a groove defined in the first slider and configured to move along the groove with rotation of the second wing member.