Title:
PLANE FILLING TYPE INDEPENDENT PROTRUDING PART CONTINUOUS CORRUGATION METHOD
Document Type and Number:
Japanese Patent JP3482563
Kind Code:
B2
Abstract:
PURPOSE: To obtain a corrugated cross section at any cut position and to provide high cross-sectional capacity by continuously arranging independent protruding parts so that the protruding parts are shifted from the adjacent ones or the protruding directions thereof are made different or a plurality of shapes are combined.
CONSTITUTION: Adjacent cyclic plane filling type or united type independent protruding parts are spread all over so that mutual connecting sides thereof are not present on the same straight line. Further, a corrugation method differentiating adjacent independent protruding directions is employed. Or, adjacent independent protruding parts having two or more kinds of shapes are spread over so that the mutual connecting sides thereof are not present on the same straight line. Representative cross sections in such a case that an equilateral hexagon (1-1) being a fundamental shape is spread as shown by an arrangement plan (1-2) are (1-3), (1-4), (1-5), (1-6) and all of them have a corrugated shape. A fundamental shape (2-1) is a three-unified shape of (1-1).
Inventors:
Masamichi Nishiguchi
Application Number:
JP36153791A
Publication Date:
December 22, 2003
Filing Date:
December 20, 1991
Export Citation:
Assignee:
Masamichi Nishiguchi
International Classes:
B32B3/28; E04C2/30; F16S1/06; (IPC1-7): F16S1/06; B32B3/28; E04C2/30
Domestic Patent References:
| JP62184848A | ||||
| JP4725924A | ||||
| JP3285726A | ||||
| JP6462599A | ||||
| JP57146609U | ||||
| JP5147773U | ||||
| JP3930264Y1 | ||||
| JP461754Y1 |
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