SHOCK-ABSORBING DEVICE FOR NET BODY OF GUARD FENCE

SHOCK-ABSORBING DEVICE FOR NET BODY OF GUARD FENCE

There is provided a shock-absorbing device for a net body of a guard fence, capable of improving a net body's effectiveness of absorbing impact by enlarging the amount of deformation of the net body once the net body has been subjected to a force of impact due to rockfall, mudslide, avalanche o...

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Hauptverfasser: OGAWA RYOU, NISHITA YOUICHI, INOUE SHOUICHI, NOMURA TOSHIMITSU, FUJII TOMOHIRO
Format: Patent
Sprache:eng
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ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FIXED CONSTRUCTIONS
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creator OGAWA RYOU
NISHITA YOUICHI
INOUE SHOUICHI
NOMURA TOSHIMITSU
FUJII TOMOHIRO
description There is provided a shock-absorbing device for a net body of a guard fence, capable of improving a net body's effectiveness of absorbing impact by enlarging the amount of deformation of the net body once the net body has been subjected to a force of impact due to rockfall, mudslide, avalanche or the like. A net body 4 has a net body turn-down portion 24 located on an edge portion thereof and formed by turning down oblique wire members 22 serving as wire members, and a net body intersecting portion 23 in which the oblique wire members 22 intersect with one another. The net body turn-down portion 24 or the net body intersecting portion 23 is linked, by means of a shock-absorbing rope member 40 and a shock-absorbing instrument 30, to an upper transverse rope member 11 or a longitudinal rope member 52, both of which serve as link receiving members of a guard fence 1. Once the net body 4 has been subjected to an impact energy due to rockfall or the like, the shock-absorbing instrument 30 will friction slide along the shock-absorbing rope member 40 due to the net body turn-down portion 24 or the net body intersecting portion 23, thereby absorbing the impact energy. In addition, the amount of deflection of the net body 4 becomes large as the shock-absorbing instrument 30 moves, thereby improving the effectiveness in absorbing the impact energy.
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subjects ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FIXED CONSTRUCTIONS
title SHOCK-ABSORBING DEVICE FOR NET BODY OF GUARD FENCE
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