Gasket of Door for Refrigerator and Making Method the Same
AssigneeLG Electronics Inc.
InventorYoung-Woo Kim
Life of this patent
Estimating the term…
Abstract
The present invention relates to a door gasket and a method of manufacturing the same. In the present invention, an expansible insulating portion (24) is formed integrally with an anchor portion (22) of a door gasket (20), and the interior of the expansible insulating portion (24) is filled with a soft foam (28). The soft foam (28) is made of a soft material with superior insulation property. Here, the anchor portion (22) may be made of synthetic resin or rubber, and the soft foam (28) may be made of any one of soft urethane, polyethylene, ethylene propylene diene monomer rubber (EPDM rubber), nitrile butadiene rubber (NBR), and styrene butadiene rubber (SBR), such as compressed sponge.
Claims18
A door gasket for sealing between a front surface of a refrigerator main body and a rear surface of a refrigerator door, comprising:
- an anchor portion to be fixed to the door or the refrigerator main body;
- and
- an expansible insulating portion formed integrally with the anchor portion and having insulating function and expansibility, the expansible insulating portion being compressed between the door and the refrigerator main body to prevent cold air leakage and heat loss.
A door gasket for sealing between a front surface of a refrigerator main body and a rear surface of a refrigerator door, comprising:
- an anchor portion to be fixed to the door or the refrigerator main body;
- and
- an expansible insulating portion made integrally with the anchor portion and of a soft insulation material to have insulating function and expansibility, the expansible insulating portion being compressed between the door and the refrigerator main body to prevent cold air leakage and heat loss.
A method of extruding a door gasket for a refrigerator, the door gasket comprising an anchor portion to be fixed to a door or a refrigerator main body and an expansible insulating portion for preventing cold air leakage between the refrigerator main body and the door and performing insulating function,
- wherein the anchor portion and the expansible insulating portion are integrally formed of heterogeneous materials by applying separate pressures to the materials in a gel state for respectively forming the anchor portion and the expansible insulating portion and by causing them to pass through dies via separate paths at the same time.
Dependencies are inferred from the claim text.