Title:
GASKET, AIRTIGHT STRUCTURE AND GLASS LINING CONTAINER
Document Type and Number:
Japanese Patent JP2017219095
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a gasket for use in airtight closing an opening of a glass lining container in which a clearance adjustment work can be eliminated and further the airtight characteristic at the opening can be improved.SOLUTION: This invention provides a gasket including an annular rubber elastic body having a substantial barrel-shaped vertical sectional shape and a back-up ring for controlling a crush rate of the rubber elastic body to an appropriate value. In this gasket, a formula in relation of W/H>1, 25≤(H-t)÷H×100≤50 can be established where H is the maximum thickness of the rubber elastic body in a vertical direction, W is a width of the rubber elastic body in a horizontal direction and [t] is a thickness of the back-up ring in a vertical direction, numerical relations of W1≤10 m, W2≤10 mm can be established where W1 is a width of the rubber elastic body in a horizontal direction at a height position of the upper surface of the back-up ring and W2 is a width of the rubber elastic body in a horizontal direction at a height position of the lower surface of the back-up ring.SELECTED DRAWING: Figure 1
Inventors:
NODA YUSUKE
MARUYAMA SHINYA
INOUE TOMOO
NAKAMURA SHINICHI
MARUYAMA SHINYA
INOUE TOMOO
NAKAMURA SHINICHI
Application Number:
JP2016113041A
Publication Date:
December 14, 2017
Filing Date:
June 06, 2016
Export Citation:
Assignee:
NGK INSULATORS LTD
IKEBUKURO HORO KOGYO CO
NGK CHEMITECH CO LTD
IKEBUKURO HORO KOGYO CO
NGK CHEMITECH CO LTD
International Classes:
F16J15/06; B65D53/02; F16J13/06; F16J13/10; F16J13/16
Attorney, Agent or Firm:
Axis International Patent Business Corporation
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