Patent ID: 6623593
Filing Date: 2003-09-23
Classification: C03C,H01J

Abstract:
A method of forming an outlet structure of a sealed container, comprising the steps of:(a) obtaining a sealed container body comprising a hole for exhaust formed inwardly from a major surface of said sealed container body; (b) obtaining a hollow member having a tubular portion and a flare-shaped opening portion contiguous to said tubular portion with its diameter expanded towards one end portion of said hollow member; (c) obtaining a thermofusible material which is produced in a tubular form, having an outer diameter larger than an outer diameter of said one end portion of said hollow member, an innermost diameter smaller than said outer diameter of said one end portion and larger than a diameter of said hole and a melting point lower than those of said hollow member and said sealed container body; (d) disposing said thermofusible material on said major surface on the periphery of said hole and disposing said one end portion on a surface of said thermofusible material so that the center axes of said hollow member and said hole substantially coincide with each other; and (e) bonding said sealed container body and said one end portion of said hollow member to each other by heating and melting said thermofusible material, wherein said step (d) comprises the steps of: (d-i) obtaining a jig comprising (1) a stick member comprising a first portion with its maximum diameter being substantially equal to an inner diameter of said tubular portion and a second portion contiguous to one end of said first portion to serve as a tip portion with its maximum diameter being substantially equal to a diameter of said hole, (2) a column having a top portion connected to the other end of said first portion of said stick member and a side plate portion with its upper portion connected to said top portion, said column supporting said stick member extending downwardly with said top portion, and (3) a base portion having an upper surface portion connected to a lower portion of said side plate portion of said column and a lower surface portion which can come into contact with said major surface outside a position where said thermofusible material is disposed, said jig made of a material having a melting point higher than said thermofusible material, a length of said stick member being larger than a height from said top portion to said lower surface portion of said base portion; (d-ii) disposing said thermofusible material on said major surface on the periphery of said hole and thereafter disposing said one end portion of said hollow member on said surface of said thermofusible material; and (d-iii) inserting said stick member into a hollow portion of said hollow member to fit said first portion into said hollow portion and further inserting said second portion into said hole to provide said lower surface portion of said base portion on said major surface in contact with each other, and said step (e) comprising the step of (e-i) heating said thermofusible material together with said jig.