Title:
【発明の名称】嵌め合わせ可能な直方体ブロック
Document Type and Number:
Japanese Patent JP3105734
Kind Code:
B2
Abstract:
A fitting structure of a plurality of rectangular parallelopipedal blocks comprising concavo-convexities formed on the surfaces of each of the blocks. The concavo-convexities are formed on each surface of the block on the basis of a figure which is in symmetry of rotation per 90 DEG round the center of a regular square or is in symmetry of rotation per 180 DEG round the center of a rectangle, and is complementarily in symmetry of axis with respect to a center of the rectangle line passing through the center and being in parallel with a side of the regular square or rectangle. Predetermined congruence is imparted to the figures on the surfaces depending on various shapes of the blocks. Fitting of the concavo-convexities of the surfaces of the adjacent blocks is always ensured when each block is aligned so that its thickness and its length are in conformity. The surfaces of adjacent blocks can be connected without the necessity of considering the direction of each block.
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Inventors:
Ken Yamamoto
Application Number:
JP8438094A
Publication Date:
November 06, 2000
Filing Date:
April 22, 1994
Export Citation:
Assignee:
Nuclear Fuel Cycle Development Organization
International Classes:
A63H33/06; A63H33/08; E04B2/02; E04B2/06; F16S5/00; G21C5/14; G21C13/00; G21F3/04; (IPC1-7): E04B2/02; A63H33/08; F16S5/00; G21C13/00; G21F3/04
Domestic Patent References:
| JP50158307U | ||||
| JP50158306U | ||||
| JP4222174Y1 |
Attorney, Agent or Firm:
Yukio Omata