Manufacturing method of resin damper having foamed resin seal material
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United States of America Patent
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Nov 25, 1997
Grant Date -
N/A
app pub date -
May 13, 1994
filing date -
May 13, 1994
priority date (Note) -
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Abstract
The present invention relates to a manufacturing method for a damper which is effective when used for a car air conditioner as a air flow switching door. A resin damper body to which surfaces foaming resin seal materials are joined is formed by setting the foaming resin seal materials within mold spaces beforehand and then injecting the resin thereinto, and during which process the damper body and the seal materials are joined together. Particularly, the structure of the metal molds, the structure of an injection nozzle, and the shape of the seal materials are improved in order to improve the shape of the seal materials and the shape of the damper body during the injection molding.
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