(57) A hinge device for the door of household electric appliances, includes: a coupling
element (2), having a frontal wall (12) and fixed to a frame (10) fixable to the structure
of the appliance; a support element (3), pivoted to the coupling element (2) and to
which the door is fixed; first counterbalancing means (6), designed to practice an
antagonist force against the weight force of the door; a shaped element (9), hinged
to the first counterbalancing means (6) and to the support element (3), and designed
to slide along the frontal wall (12) by virtue of the interposition of sliding means
(30) in correspondence of the passage from a closing condition (C) of the device (1),
in which the support element (3) is faced to the frontal wall (12), to an opening
condition (A), in which the axle of the support element (3) is almost orthogonal to
the frontal wall (12), and vice versa in such a way that the sliding causes an antagonistic
force of increasing intensity between the sliding block (13) and the frontal wall
(12) and proportional to the increasing of the opening angle of the door and to the
arm of the antagonistic force.
The hinge device 1 can moreover include second counterbalancing means (15) slidable
on an outer contour (8) of the shaped element (9), so as to exert a further antagonistic
force thereon proportionally increasing in correspondence of the passage from the
closing condition (C) to the opening condition (A).
|
|
