Hinge for a household appliance with improved elastically deformable means

A hinge for a household appliance, adapted to connect at least one flat closing element to a body of the household appliance in correspondence to an opening provided in the body,

• the hinge allowing the flat closing element to rotate between
• a first operative position wherein the flat closing element closes the opening, and
• a second operative position angularly spaced by at least 90° with respect to the first operative position,
• the hinge comprising:
• a first supporting structure adapted to be secured to a structure or front bearing wall of the body of the household appliance,
• a second supporting structure adapted to be bound to the flat closing element,
• a first connecting element and a second connecting element, wherein the first connecting element and the second connecting element are adapted to connect the first supporting structure to the second supporting structure,
• wherein the first connecting element is closer to the structure or front bearing wall of the body of the household appliance compared to the second connecting element, and
• an elastically deformable member which interacts with at least one of the first connecting element and the second connecting element to exert a force that pushes the closing element against the opening of the body of the household appliance at least when the closing element is in the first operative position,
• wherein the first connecting element, the second connecting element, at least a first portion of the first supporting structure, and at least a second portion of the second supporting structure form an articulated quadrilateral having at least one side lying in a plane perpendicular to the flat closing element,
• wherein the articulated quadrilateral is adapted to define a member for opening and closing the closing element between the first operative position and the second operative position,
• wherein the first connecting element comprises
• a first end and
• a second end,
• the first end comprising a first hinge axis about which the first connecting element can rotate,
• the second end comprising a second hinge axis about which the first connecting element can rotate,
• wherein the second connecting element comprises
• a third end and
• a fourth end,
• the third end comprising a third hinge axis about which the second connecting element can rotate,
• the fourth end comprising a fourth hinge axis about which the second connecting element can rotate,
• wherein the elastically deformable member comprises a helical spring, and a supporting element on which the helical spring is fitted, the supporting element being coaxial to the helical spring;
• the supporting element connecting one of the first connecting element and the second connecting element to the first supporting structure;
• wherein the supporting element provides a first hinge pin said first hinge pin being eccentric with respect to a second hinge pin of the connecting element which is connected to said supporting element;
• wherein the helical spring is housed in the first supporting structure and is provided substantially in a space comprised between a first hinge pin of the first connecting element and a second hinge pin of the second connecting element to said first structure which houses the spring,
• wherein, in the first operative position, a first distance between the first hinge axis and the second hinge axis is greater than or equal to 165.5 mm times a value K1, and less than or equal to 169.5 mm times said value K1,
• wherein, in the first operative position, a second distance between the third hinge axis and the fourth hinge axis is greater than or equal to 131 mm times said value K1, and less than or equal to 135 mm times said value K1,
• wherein, in the first operative position, a third distance between the second hinge axis and the fourth hinge axis is greater than or equal to 53.2 mm times said value K1, and less than or equal to 57.2 mm times said value K1,
• wherein, in the first operative position, a fourth distance between the first hinge axis and the third hinge axis is greater than or equal to 20.4 mm times said value K1, and less than or equal to 24.4 mm times said value K1,
• wherein said value K1 is between 0.1 and 2.0.

A hinge for a household appliance, adapted to connect at least one flat closing element to a body of the household appliance in correspondence to an opening provided in the body,

• the hinge allowing the flat closing element to rotate between
• a first operative position wherein the flat closing element closes the opening, and
• a second operative position angularly spaced by at least 90° with respect to the first operative position,
• the hinge comprising:
• a first supporting structure adapted to be bound to the body of the household appliance,
• a second supporting structure adapted to be bound to the flat closing element,
• a first connecting element and a second connecting element, wherein the first connecting element and the second connecting element are adapted to connect the first supporting structure to the second supporting structure, and
• an elastically deformable body which interacts with at least one of the first connecting element and the second connecting element to exert a force that pushes the closing element against the opening of the body at least when the closing element is in the first operative position,
• wherein the first connecting element, the second connecting element, at least a first portion of the first supporting structure, and at least a second portion of the second supporting structure form an articulated quadrilateral,
• wherein the articulated quadrilateral is adapted to define a member for opening and closing the closing element between the first operative position and the second operative position,
• wherein the first connecting element comprises
• a first end and
• a second end,
• the first end comprising a first hinge axis about which the first connecting element can rotate,
• the second end comprising a second hinge axis about which the first connecting element can rotate,
• wherein the second connecting element comprises
• a third end and
• a fourth end,
• the third end comprising a third hinge axis about which the second connecting element can rotate,
• the fourth end comprising a fourth hinge axis about which the second connecting element can rotate,
• wherein, in the first operative position, a first distance between the first hinge axis and the second hinge axis is greater than or equal to 165.5 mm times a value K1, and less than or equal to 169.5 mm times said value K1,
• wherein, in the first operative position, a second distance between the third hinge axis and the fourth hinge axis is greater than or equal to 131 mm times said value K1, and less than or equal to 135 mm times said value K1,
• wherein, in the first operative position, a third distance between the second hinge axis and the fourth hinge axis is greater than or equal to 53.2 mm times said value K1, and less than or equal to 57.2 mm times said value K1,
• wherein, in the first operative position, a fourth distance between the first hinge axis and the third hinge axis is greater than or equal to 20.4 mm times said value K1, and less than or equal to 24.4 mm times said value K1,
• wherein said value K1 is between 0.1 and 2.0,
• wherein the elastically deformable body comprises a helical spring,
• wherein the elastically deformable body comprises a supporting element on which is fitted the helical spring, the supporting element being coaxial to the helical spring, the supporting element connecting one of the first connecting element and the second connecting element to the first supporting structure,
• wherein the supporting element provides a first hinge pin said first hinge pin being eccentric with respect to a second hinge pin of the connecting element which is connected to said supporting element,
• wherein the first distance is less than the second distance, and
• wherein the supporting element for the helical spring is hinged to the second connecting element.