Title:
PORCELAIN PLATE
Document Type and Number:
Japanese Patent JP2020007874
Kind Code:
A
Abstract:
To disperse a stress convergent on a boundary part between hollow holes when received a flexure load on the plate surface due to a structure of the hollow holes and therefore to improve a strength relative to the flexure load having both ends in a direction intersecting with the direction in which the hollow holes extend as a support point in a porcelain plate in a plate shape formed with the plurality of hollow holes side by side along a plate surface.SOLUTION: In a porcelain plate in a plate shape 10 formed with a plurality of hollow holes 23 side by side along a plate surface a groove (25) with a plurality of strips formed extending in a direction intersecting with an extending direction of the hollow hole 23 and a rib 26 formed by that an inner wall surface of each hollow hole 23 protrudes in the hollow hole 23 along the shape of each groove (25) are provided on the plane surface. The rib 26 is formed continuously over the inner wall surface of each hollow hole 23 and a protrusion amount of the inner wall surface of each hollow hole 23 by the rib 26 is restricted to a content to maintain an opening of each hollow hole 23.SELECTED DRAWING: Figure 9
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Inventors:
SUMIYA TOMOJI
Application Number:
JP2018132356A
Publication Date:
January 16, 2020
Filing Date:
July 12, 2018
Export Citation:
Assignee:
ISHIKAWA TOKI IRON WORKS
International Classes:
E04D1/24; E04D1/16; E04F13/14
Domestic Patent References:
| JPS6465055A | 1989-03-10 | |||
| JPH1190912A | 1999-04-06 | |||
| JP2000043023A | 2000-02-15 |
Attorney, Agent or Firm:
Okada International Patent Office