| 摘要 |
<p>A hinge structure (10) for a cooking oven door adapted to be pivoted at its lower end between a first vertical position in which it closes an oven compartment and a second horizontal position in which access is offered to said oven compartment. The hinge structure (10) is mounted in a casing (12) secured to a housing enclosing the oven compartment. The hinge structure (10) further comprise a link mechanism including an upper (22) and a lower link arm (26) each having a first end rotatably connected to the lower side of the door at spaced locations. Opposite ends of the upper and lower arms (22, 26) are interconnected by a further link arm (30) so as to form a hinged parallelogram link system. At its opposite end, said lower link arm (26) has an extension (36) the free end of which is rotatably mounted in the casing (12). The further link arm (30) has the shape of a lever provided with an extension (31) rotatably connected to an additional link arm (42) the opposite end of which being rotatably connected to the casing (12). The hinge structure is effective to cause movement of the door in a direction away from the oven compartment before it is rotated to its second horizontal position. Spring means (56) are provided to counterbalance the door during its movement between the first and second positions. Moreover, a door holding mechanism (68) is provided which has a first working position in which the door is biased against the oven compartment and a second working position in which the door is left partly open.</p> |
