Snap joint hinge device

Abstract

A snap join hinge device comprising a first element (3) intended to be fixed to a body of an appliance and a second element (5) intended to be fixed to a door of said appliance where said first (3) and second elements (5), in an assembled condition of the apparatus, are mutually connected for rotation of the door around a rotation axis. The second element (5) is provided with an elongated recess (7), having an open end (9) and a closed end (11), the second element (5) is also provided with a first connection (13) made near the recess (7). Said device (1) further comprises a hooking means (15)provided with a first seat (17) provided with an opening (19) and a second seat (18) almost facing the first seat (17) and delimited by one of its continuous edge and said hooking means (15) comprisesa second connection (21) intended to engage in the first connection (13) to provide a fastening condition in which the opening (19) and the first seat (17) are aligned with the longitudinal axis of the recess (7) and facing the open end (9). Said first seat (17) and the recess (7) are designed to receive and house a stem of a hinge pin (23) fixed protruding from the first element (3) and definingsaid rotation axis. The second seat (18) is designed to receive and house a head (26) of this hinge pin (23). These first (3) and second (5) elements mutually separated and fixed to the chassis and the door, respectively, can be mutually connected rotatably, engaging the hinge pin (23) and its head (26) respectively in the first seat (17) and in the second seat (18) for hinging said door to the appliance chassis.

Description

technical field [0001] The present invention relates to hinges for household appliances, and to a snap-fit ​​hinge device particularly, but not exclusively, suitable for rotationally connecting a door having a lower and horizontal axis of rotation to an appliance such as a dishwasher. Background technique [0002] Known dishwashers have two modular hinges, each hinge having two members, one fixed to the underside of the main body or frame of the dishwasher and the other fixed to the corresponding lower base of the door. on the side. These components are separated and are engaged with each other by rotation after being respectively fixed to the main body and the door. This connection is made by an operator who manually moves the door to interconnect the interhook and swivel parts of the two parts of each hinge. [0003] A type of hinge is known for snap-fitting a revolving door about a horizontal axis lower than the body of a front-loadable domestic appliance, such as a dis...

AI Technical Summary

Problems solved by technology

[0010] The disadvantage of this known hinge is that, at the stage of connecting the door of the household appliance to the main body, the downward opening facing the oval hole and the supporting bushing can be hidden from the sight of the person appointed to make the connection, so that this connection This operation becomes difficult and / or slow, at least for workers without special experience

[0011] A further disadvantage of this known hinge is that, for example, in some cases a force is applied to the hinge pin of the door under force, for example by bending the extension arm with force, said force being directed towards the hinge pin into the respective the orientation of the bushing; the extension arm of said bushing is at risk of damage or breakage

[0012] Another disadvantage of the known hinge is that it may be affected by rotation irregularities and generate noise

[0013] Another disadvantage of said known hinge is that it allows an axial play in its carriage, which in some cases can be counterproductive if not prevented by other elements

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