Liftable door supporting mechanism for ovens

A LIFTABLE DOOR SUPPORTING MECHANISM FOR OVENS, comprising:

• a support located on each side of an oven,
• a tempered rotation shaft welded to each support,
• two rigidly connected arms connected on opposite sides of the oven and integrally rotating in parallel spatial planes, said two arms including a primary arm and a secondary arm, both of which pivot on a the respective rotation shaft,
• a bronze self-lubricating friction bushing rotatably mounted on the rotation shaft,
• a boss fixed on the bushing and rotating integrally with the bushing
• wherein the primary arm is rotatably inserted on the boss,
• wherein the boss has, at its end furthest from the oven, two parallel milled slots to house the secondary arm which when put in position will be fixed to the boss by a washer and a nut which is screwed onto a thread provided in the boss,
• wherein an end of the secondary arm has a joint hinged to the a lower portion of the liftable door,
• a connecting rod connected at the opposite end of the primary arm, and
• a counterweight connected with the connecting rod to support the weight of the liftable door in its highest position by exerting a lever on the liftable door by the two arms and with a fulcrum on the rotation shaft.