Abstract: A hinge in accordance with the present invention comprises a first element and a second element pivoted together to reciprocally rotate from an open position to a closed position. The first element includes a hollow central body, a hinge pin and a fastening pin being transversely mounted in the hollow central body. The second element includes a strip extended therefrom. The strip includes an opening in a middle thereof. A distal portion of the strip is extended into the hollow central body and wound around the hinge pin so as to form a stop that is associated with the opening. A spring is mounted around the fastening pin. The spring includes a first end attached to a bottom of the hollow central body and a second end that is extended through the opening and attached to the stop of the strip, thereby providing control between the first element and the second element by elasticity of the spring.

Abstract: A hinge mainly comprises a fixing plate, a base plate, a connection, and a door related hinge part. The fixing plate is provided with fixing holes for securing to the jamb of cabinet and a side plate having a auxiliary fixing hole. The base plate is mounted to the fixing plate and has two bumps and notches. The connection comprises a pin hooked by the notch of the base platen and a buckle being urged by a spring element to clasp the edge of the bump. The door related hinge part is mounted to the connection.

Abstract: A hinge structure includes a casing having a depression and a space for receiving a spring member and a base. The base is rotatably secured in the space and includes two cams. A hinge member includes an extension secured to the base and rotated in concert with the base. A spring includes two ends for resiliently engaging with the cams so as to position the cams and the hinge member in suitable angular position. The hinge structure includes a simplified configuration excellent for manufacturing and assembling purposes.