| 摘要 |
A gasket made of a plastic material for refrigerator chests, including an inner door and an outer door, rigidly connected to each other by a foamed material injected in the hollow space between them for insulating purposes, in which the inner door is profiled along one or more sides with a groove is profiled alone one or more sides with a groove next to an extremity thereof overlaying the outer door, wherein the groove functions as a seat to receive an appropriate fastener for the gasket and the latter is fitted with a bellows-type section made of a soft plastic material capable of providing a closing seal between the inner door and the chest, and a base from which the fastener extends to the inner door, the gasket base being made of a rigid plastic material shaped by co-extrusion with the soft plastic material of the bellows-type portion and presents a substantially horizontal, flat or slightly curved configuration in the portion where the base overlays the extremity of the inner door, while presenting a substantially oblique or vertical configuration in the extremity, and wherein the portion of the base is externally overlaid, on the same side of the outer door, by a layer of soft material coextruded with the rigid material of the base, from which a sealing element extends so as to operatively rest against the outer door, the soft layer forming a portion of the lateral wall of the bellows-type portion.
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