A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ARTIFICIAL LAWN FILLER AND ARTIFICIAL LAWN STRUCTURE COMPRISING THE SAME
PROBLEM TO BE SOLVED: To provide an artificial lawn filler that can reliably form a drop trace of a thrown object such as a hammer, a discus or a shot in throwing events and that enables the drop position to be identified with ease, and an artificial lawn structure comprising the same.SOLUTION: An artificial lawn filler includes a first filler with a predetermined particle size, and a second filler that has a large particle size in comparison with a 80% particle diameter in particle size distribution of the first filler. A difference between the 80% particle diameters of the first and second fillers is 0.4 mm or more.
【課題】投擲競技におけるハンマー、円盤又は砲丸等の投擲物の落下痕跡を確実に形成でき、落下位置を容易に判明できる人工芝充填材及びこれを備えた人工芝構造体を提供する。【解決手段】人工芝充填材は、所定粒度を有する第１の充填材と、第１の充填材の粒度分布における８０％粒径で比較した場合、大きい粒度を有する第２の充填材とを備えており、第１の充填材と第２の充填材との８０％粒径の差が０．４ｍｍ以上である。【選択図】図１
ARTIFICIAL LAWN FILLER AND ARTIFICIAL LAWN STRUCTURE COMPRISING THE SAME
PROBLEM TO BE SOLVED: To provide an artificial lawn filler that can reliably form a drop trace of a thrown object such as a hammer, a discus or a shot in throwing events and that enables the drop position to be identified with ease, and an artificial lawn structure comprising the same.SOLUTION: An artificial lawn filler includes a first filler with a predetermined particle size, and a second filler that has a large particle size in comparison with a 80% particle diameter in particle size distribution of the first filler. A difference between the 80% particle diameters of the first and second fillers is 0.4 mm or more.
【課題】投擲競技におけるハンマー、円盤又は砲丸等の投擲物の落下痕跡を確実に形成でき、落下位置を容易に判明できる人工芝充填材及びこれを備えた人工芝構造体を提供する。【解決手段】人工芝充填材は、所定粒度を有する第１の充填材と、第１の充填材の粒度分布における８０％粒径で比較した場合、大きい粒度を有する第２の充填材とを備えており、第１の充填材と第２の充填材との８０％粒径の差が０．４ｍｍ以上である。【選択図】図１
ARTIFICIAL LAWN FILLER AND ARTIFICIAL LAWN STRUCTURE COMPRISING THE SAME
人工芝充填材及びこれを備えた人工芝構造体
MORIISHI KIYOSHI (author) / YANAGAWA KAZUMITSU (author)
2015-06-11
Patent
Electronic Resource
Japanese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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