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Patent Searching and Data


Title:
HYPERBOLIC PARABOLOIDAL STRUCTURAL PANEL
Document Type and Number:
Japanese Patent JP2000064499
Kind Code:
A
Abstract:

To reduce the weight and enhance the rigidity by halving a horizontally columnar body along a cut line moving in parallel from the front end surface toward the rear end surface so that the cut surface has a plate piece having a continued surface consisting of the combination of hyperbolic paraboloids.

When the cutting of a horizontally columnar body 1 having a square section is performed from cut line 1, 3 to 6, 8 while it is equally halved along a cut line moving parallel from the front ends 1-4 toward the rear ends 5-8, and it is at that time rotated to the left at a rotating angle speed proportional to the advancing speed by a rotating angle 90° along central axes 9, 10 passing the centers of gravity of the front end surface and the rear end surface, a basic form L of the cut surface 1, 3, 8, 6 is provided. When it is rotated to the right, a basic form R of cut surface 13, 15, 18, 16 symmetric to the above is provided. The cut line 1, 3 or 13, 15 has the same ratio of rotating speed to advancing speed, and the resulting cut surfaces 1, 3, 8, 6 and 13, 15, 18, 16 are hyperbolic paraboloidal. Accordingly, a light-weighted structural panel with high rigidity can be formed.


More Like This:
WO/1996/007799BUILDING PANEL
Inventors:
NAKAO ERIFU
Application Number:
JP1998000240571
Publication Date:
February 29, 2000
Filing Date:
August 26, 1998
Export Citation:
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Assignee:
ERIITEKU KK
International Classes:
E04C2/32; B32B3/28; E04C2/36; F16S1/08; F16S5/00; (IPC1-7): E04C2/32; B32B3/28; E04C2/36; F16S1/08; F16S5/00
Attorney, Agent or Firm:
Kazuo Kobashi (1 person outside)