Method for manufacturing an air passage switching door
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United States of America Patent
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-
Nov 4, 2003
Grant Date -
Jul 19, 2001
app pub date -
Jan 16, 2001
filing date -
Jan 18, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a method for manufacturing an air passage switching door with a seal member extending along an outer peripheral portion of a door body, when a melted elastic material for forming the seal member is injected into a mold space from plural injection gates, a flow length of the melted elastic material is set to be equal or smaller than 40 mm. Accordingly, even when the method is used for forming the air passage switching door where a length of one side seal member extending along the outer peripheral portion at one side of a rotation shaft is equal to or larger than 100 mm and a thickness of the seal member is equal to or smaller than 2.0 mm, a deformation of the seal member due to an inner shrinking force can be sufficiently restricted.
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