Title:
屋外遊び場
Document Type and Number:
Japanese Patent JP4472894
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an outdoor playground excellent in construction efficiency in the open, excellent in durability in the case it is used, capable of being used for a skate board play, dabbling or the like and safely playing without any anxiety. SOLUTION: The sunken outdoor playground is constituted of the approximately horizontal bottom and the side curvedly erected on the outside of the bottom, the bottom is formed of a concrete mortar layer cast on the bottom plate with impervious structure horizontally put on a supporting layer, the side is formed of a concrete mortar layer cast on a corrugated steel plate stretched on a supporting frame provided on a footing, and the circumferential edge section of the bottom plate is formed in the circumferential edge bottom plate having a vertical cut-off edge and, at the same time, the circumferential edge bottom plate is fixed on the footing of the side.
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Inventors:
Koji Ishii
Akira Wada
Ryoichi Kubo
Akira Wada
Ryoichi Kubo
Application Number:
JP2001164802A
Publication Date:
June 02, 2010
Filing Date:
May 31, 2001
Export Citation:
Assignee:
Ishii Iron Works Co., Ltd.
International Classes:
A63C19/10; E01C13/00; E02B7/02; E04H3/14; E04H4/02; H01M4/88; H01M8/10
Domestic Patent References:
| JP10108938A | ||||
| JP4131413A | ||||
| JP11076490A |