SI24688A - Sealing for the door of a household appliance - Google Patents

Abstract

The present invention relates to a household appliance, such as an oven, a microwave oven, a dishwasher, a refrigerator, and the like, with a room for receiving the goods to be treated, and a door closing said space for receiving a property that is treating it, wherein in said door there is arranged a seal seal between said receiving room to be treated and said doors closing said space for receiving the goods to be treated. The gasket according to the invention is essentially conceived as a U-shaped cross-section and comprises a bridge (6) and an approximately perpendicular to the first web (7) and the second web (8), respectively, with the second web (8) at its free end a sealing head (9) and facing away from the first web (7), formed by at least one sealing lip (10, 11).

Description

Household appliance door gasket

The present invention relates to a household appliance, such as an oven, microwave oven, dishwasher, refrigerator, and the like, with a space for receiving the good to be treated and a door to close said space for receiving the good to be treated. treats it, said seal being arranged in said door between said space for receiving the good to be treated and said door by which said space for receiving the good to be treated is closed.

For example, the door seal of the foregoing type is disclosed in EP 1 763 286 BI. Said gasket is hollow and made of an elastic material, said gasket comprising a fin-like lip integrally formed on the outer surface of the gasket and extending in the longitudinal direction thereof. However, this seal has several disadvantages that can completely destroy the functionality of the seal. If the seal is poorly attached to the bearing edge of the seal, the sealing function of the seal tab is reduced or reduced. the gasket may be too curved in one direction, which may cause microwave leakage from the microwave. The shape of the seal makes it difficult to clean, and the sealing edge may be damaged during cleaning, causing steam or steam to escape from the appliance. hot air.

It is an object of the invention to provide a door seal for a household appliance which eliminates the disadvantages of known solutions.

The invention will now be described in more detail with reference to a non-limiting embodiment and with reference to the accompanying drawing, where FIG. 1 shows a cross-sectional view of a microwave oven door seal according to the invention; 2 is a seal of FIG. 1 in cross section; 3 is a seal of FIG. 1 in cross section and deformed state.

The present invention is described in detail below in the embodiment of a microwave door seal, but the solution can be used without any significant changes in other household appliances such as ovens, dishwashers, refrigerators and the like.

The door seal of a household appliance, such as an oven, microwave oven, and the like, extends over the entire circumference of the door 2, which is closed by a circumferential wall 3, a restricted oven 4, of the oven. Said gasket 1 is fixedly positioned in door 2, while the free end of gasket 1 cooperates with a section 5 of the circumferential wall 3 facing the door 2. The invention is further described in the embodiment of a door gasket 1 in a microwave oven.

The cross-sectional seal 1 according to the invention is essentially designed as a letter U and comprises a bridge 6 and a first stand 7 and a second stand 8 perpendicular to them. The second stand 8, which is slightly longer than the first stand 7, is designed at its free end by sealing head 9. Said sealing head 9, which is intended to cooperate with the aforementioned section 5 of the circumferential wall 3 of the microwave oven, is preferably hollow and in cross-section may take any shape, for example at least one correct or irregular geometric figure, and preferably two regular ones. or irregular geometric shapes such as circles, ellipses, squares, triangles, and the like, and any combination of them.

In the embodiment shown, said sealing head 9 takes the approximate shape of a combination of a triangle and a square, with the larger section 9.1 resulting from the second web 8 taking the approximate shape of the triangle connected to its top by the second web 8, and taking from the base of said triangle the resulting smaller section 9.2 takes the approximate shape of a square connected to one of its corners by said triangle. In this way, said hollow sealing head 9 is designed with an interconnected larger chamber 9.3 and a smaller chamber 9.4. The respective corners of said triangle 9.1 and / or square 9.2 in deformation of the seal or the sealing heads 9 operate in a bellows manner to achieve the best possible deformation and sealing properties of the seal 1 according to the invention. Said sealing head 9 is preferably designed approximately symmetrically with respect to the direction of deformation, thereby preventing any portion of the sealing head 9 from tilting and at the same time allowing the larger section 9.1 and the smaller section 9.2 to collapse almost perpendicularly to said section 5 of the circumferential wall 3.

Further mentioned is a second web 8 on its outer side, that is, away from the first web 7, facing side, formed with at least one sealing lip, preferably with two sealing lips 10, 11, arranged approximately perpendicular to said second web 8. Said lips 10, 11 are intended to cooperate with one of the oven door walls, in the embodiment shown, with the wall 12 of the microwave trap 13 of the microwave oven.

The seal 1 according to the invention is, due to its shape, that is U-shaped, suitable for mounting on the tab 14 of the door cover 2, said door cover 2 being disposed on that side of door 2 facing the oven space 4. Said cover Door 2 covers essentially the entire perimeter of the door with the exception of glass. Said tab 14 extends approximately perpendicularly to the course of door 2, with its free end facing away from the oven space 4. Said gasket 1 according to the invention is thus attached to said free end of the tab 14, so that, in the installed state, the sealing bridge 6 is essentially the abutments on the free edge of said tab 14. Said posts 7, 8 extend parallel to the tab 14, said lips 10.11 leaning against said wall 12 of the microwave trap 13.

The seal 1 according to the invention is mounted on the door 2 of the microwave oven by first sealing the seal 1 on said tab 14 of the door cover 2, and then the said door cover 2 is mounted on said catcher 13 microwaves. When installing gasket 1 according to the invention, said lips 10, 11 deform slightly in the direction of the oven space 4, thereby ensuring a gap seal between the gasket 1 and the microwave trap 13, and reliably preventing the escape of steam and / or water from the apparatus. When the door 2 of the household appliance is closed, said sealing head 9 is pressed against a section 5 of the circumferential wall 3 that faces the door 2. The sealing head 9 is consequently deformed at closed door 2 and provides a relatively large sealing surface. At the same time, relatively high adaptability to the planes of said circumferential wall 3 is achieved, which further contributes to preventing the escape of steam or water or microwaves from the oven 4.

Claims (7)

Patent claims 1. A door seal of a household appliance, such as an oven, microwave oven, dishwasher, refrigerator and the like, with a space for receiving goods Seal according to claim 1, characterized in that said sealing head (9) is preferably designed approximately symmetrically with respect to the direction of deformation and, in cross section, comprises a larger portion (9.1) emanating from said second web (8) and a smaller one emerging from the latter. section (9.2). 20 Seal according to claims 1 and 2, characterized in that said larger section (9.1) and said smaller section (9.2) form an interconnected larger chamber (9.3) and a smaller chamber (9.4). A gasket as claimed in claims 1 to 3, characterized in that the respective corners are said 25 of a larger section (9.1) and / or a smaller section (9.2) in case of deformation of the gasket or. the sealing heads (9) operate in a bellows manner. Seal according to claims 1 to 4, characterized in that said sealing head (9) in cross section can take any shape, for example at least one correct or 30 irregular geometric characters, preferably two correct or irregular geometric characters 5 treats, and with the door, which closes said space for receiving the good to be treated, said sealing gasket being arranged between said space for receiving the good to be treated and said door by which closing said space for receiving the property to be treated, characterized in that it is substantially cross-sectioned in the form of a letter U and comprises a bridge (6) and the first web (7) and the second web (8) placed approximately perpendicularly thereto. ), the second web (8) being formed at its free end by a hollow sealing head (9) and facing away from the first web (7), at least one sealing lip (10, 11). 15 Seal according to claim 5, characterized in that said geometric figure is a circle, an ellipse, a square, a triangle, and the like, and any combination thereof. Seal according to claim 1, characterized in that said sealing lips (10, 11) are arranged approximately perpendicularly to said second web (8).