A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND LEVELING DEVICE AND SHEET FOR GROUND LEVELING DEVICE
To provide a ground leveling device and sheet for ground leveling device that suppress the diffusion of dust generated when the soil or sand of a stadium or a racetrack is scraped and leveled by a protrusion.SOLUTION: A ground leveling device 1 used to level a ground such as that of a stadium while being towed and moved by a towing vehicle, comprises: a frame body 10 having a plurality of protrusions 31 for scraping and leveling soil and sand in a stadium and the like; a sheet 20 covering the frame 10; and a recovery box 40 provided on the rear end side of the frame body 10 to be towed and recovering fine-grained constituents 60 of soil or sand that are blown up by the plurality of protrusions 31. The sheet 20 for ground leveling device has a water repellency of grade 4 or higher in a test based on JIS L1092:2009 water repellency test (spray test) and a sand adherence difficulty of grade 4 or higher in a dust adhesion test (Komatsu JRA method). The sheet shall be confirmed to have no holes after performing testing 300 times based on JIS L1096:2010 abrasion strength C method (Taber type method) using a an abrasion wheel No. CS-17, and load of 9.8 N.SELECTED DRAWING: Figure 1
【課題】競技場や競馬場の土や砂を、突起部にて掻いて均す際に発生する砂塵の拡散を抑制する整地器具及び整地器具用シートを提供する。【解決手段】整地器具１は、牽引車によって牽引し移動しながら競技場等の整地を行うものであって、競技場等の土や砂を掻いて均す複数の突起体３１を備える枠体１０と、枠体１０を覆うシート２０と、牽引される枠体１０の後端側に備えられ、複数の突起体３１によって舞い上げられる土又は砂の細粒成分６０を回収する回収箱４０を有する。整地器具用シート２０はＪＩＳ Ｌ１０９２：２００９はっ水度試験（スプレー試験）に準じた試験で４級以上の撥水性能と、砂塵付着試験（小松ＪＲＡ法）にて４級以上の砂の付きにくさと、摩耗輪：Ｎｏ．ＣＳ−１７、荷重：９．８Ｎを用いたＪＩＳ Ｌ１０９６：２０１０摩耗強さＣ法（テーバ形法）に準じた試験で、３００回の試験後に穴あきが確認されないことを有する。【選択図】図１
GROUND LEVELING DEVICE AND SHEET FOR GROUND LEVELING DEVICE
To provide a ground leveling device and sheet for ground leveling device that suppress the diffusion of dust generated when the soil or sand of a stadium or a racetrack is scraped and leveled by a protrusion.SOLUTION: A ground leveling device 1 used to level a ground such as that of a stadium while being towed and moved by a towing vehicle, comprises: a frame body 10 having a plurality of protrusions 31 for scraping and leveling soil and sand in a stadium and the like; a sheet 20 covering the frame 10; and a recovery box 40 provided on the rear end side of the frame body 10 to be towed and recovering fine-grained constituents 60 of soil or sand that are blown up by the plurality of protrusions 31. The sheet 20 for ground leveling device has a water repellency of grade 4 or higher in a test based on JIS L1092:2009 water repellency test (spray test) and a sand adherence difficulty of grade 4 or higher in a dust adhesion test (Komatsu JRA method). The sheet shall be confirmed to have no holes after performing testing 300 times based on JIS L1096:2010 abrasion strength C method (Taber type method) using a an abrasion wheel No. CS-17, and load of 9.8 N.SELECTED DRAWING: Figure 1
【課題】競技場や競馬場の土や砂を、突起部にて掻いて均す際に発生する砂塵の拡散を抑制する整地器具及び整地器具用シートを提供する。【解決手段】整地器具１は、牽引車によって牽引し移動しながら競技場等の整地を行うものであって、競技場等の土や砂を掻いて均す複数の突起体３１を備える枠体１０と、枠体１０を覆うシート２０と、牽引される枠体１０の後端側に備えられ、複数の突起体３１によって舞い上げられる土又は砂の細粒成分６０を回収する回収箱４０を有する。整地器具用シート２０はＪＩＳ Ｌ１０９２：２００９はっ水度試験（スプレー試験）に準じた試験で４級以上の撥水性能と、砂塵付着試験（小松ＪＲＡ法）にて４級以上の砂の付きにくさと、摩耗輪：Ｎｏ．ＣＳ−１７、荷重：９．８Ｎを用いたＪＩＳ Ｌ１０９６：２０１０摩耗強さＣ法（テーバ形法）に準じた試験で、３００回の試験後に穴あきが確認されないことを有する。【選択図】図１
GROUND LEVELING DEVICE AND SHEET FOR GROUND LEVELING DEVICE
整地器具及び整地器具用シート
FUTAMURA KEISUKE (author) / NAGANO KEI (author) / TAKASAWA SHOHEI (author) / SUZUKI SHIN (author) / NAGAOKA YOSHIYUKI (author) / OKUTANI AKIHIRO (author) / KANENORI NOBUMASA (author)
2021-05-27
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