SHOCK ABSORBING DEVICE FOR NETTED BODY FOR PROTECTIVE FENCE

Provided is a shock absorbing device for a netted body for a protective fence, this shock absorbing device being such that when an impact force acts due to a rock fall, a landslide, a snowslide, or the like, the netted body is made to deform by a large amount, with the result that the impact absorpt...

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Bibliographische Detailangaben
Hauptverfasser: OGAWA RYOU, NISHITA YOUICHI, INOUE SHOUICHI, NOMURA TOSHIMITSU, FUJII TOMOHIRO
Format: Patent
Sprache:eng ; fre ; jpn
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Beschreibung
Zusammenfassung:Provided is a shock absorbing device for a netted body for a protective fence, this shock absorbing device being such that when an impact force acts due to a rock fall, a landslide, a snowslide, or the like, the netted body is made to deform by a large amount, with the result that the impact absorption effect by the netted body can be improved. The netted body (4) comprises netted body turnup sections (24) formed in such a way that oblique wires (22), which are in the wire category, are turned up in the edge sections; and netted body intersecting sections (23) at which the oblique wires (22) intersect with each other. The netted body turnup sections (24) and the netted body intersecting sections (23) are connected, by means of shock absorbing rope members (40) and shock absorbing implements (30), to an upper horizontal rope member (11) and vertical rope members (52), both of which are connected members of the protective fence (1). When impact energy is applied to the netted body (4) due to a rock fall or the like, then the netted body turnup sections (24) and the netted body intersecting sections (23) cause the shock absorbing implements (30) to slide under friction with respect to the shock absorbing rope members (40), resulting in the impact energy being absorbed. Furthermore, because the shock absorbing implements (30) move, the deflection amount of netted body (4) can be made large, with the result that the impact energy absorption effect can be improved. La présente invention concerne un dispositif amortisseur de chocs pour un corps maillé pour une clôture de protection, ce dispositif amortisseur de chocs étant tel que, lorsqu'une force d'impact agit en raison d'une chute de pierre, un glissement de terrain, une avalanche, ou analogue, le corps maillé soit fabriqué de manière à se déformer selon une quantité importante, ce qui entraîne une amélioration de l'effet d'absorption d'impact par le corps maillé. Le corps maillé (4) comprend des sections de revers de corps maillé (24) formées de manière telle que des fils métalliques obliques (22), qui sont dans la catégorie de fil métallique, soient tournés vers le haut dans les sections de bord ; et des sections de croisement de corps maillé (23) au niveau desquelles les fils métalliques obliques (22) se croisent. Les sections de revers de corps maillé (24) et les sections de croisement de corps maillé (23) sont reliées, au moyen d'éléments de corde amortisseurs de chocs (40) et d'accessoires amortisseurs d