E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
E04D 13/00 (2006.01) E04D 13/10 (2006.01)
Patent
CA 2201650
An economical three-component snow guard comprising (1) a laminar strap, (2) a snow-stop and (3) a gusseted brace is reinforced and its rigidity and compressive strength greatly improved. At the same time, the resistance to damage due to re-freezing of melted snow, and internal weathering of the brace, is essentially eliminated. The disdavantages of a structurally similar prior artsnow guard are unexpectedly avoided by providing particularly improved structural features. The novel snow guard, formed as a unitary structure of foldable sheet metal less than 2 mm thick can withstand not only the forces exerted by an accumulated snow pack, but also the compressive force of a person's weight exerted in either the down-roof or vertical directions.
Arrêt de neige à trois composants comprenant (1) une courroie laminée, (2) un garde-neige et (3) un support à soufflet renforcé, dont la rigidité et la résistance à la compression sont grandement améliorées. D'autre part, la résistance à la dégradation due au regel de la neige fondante et l'altération interne du support due aux intempéries sont essentiellement éliminées. Les faiblesses d'un arrêt de neige de modèle antérieur structurellement similaire sont corrigées par des caractéristiques structurelles réellement améliorées. Le nouvel arrêt de neige, de construction monolithique est en tôle repliable de moins de 2 mm d'épaisseur; il peut résister à des forces telles une charge de neige ou le poids d'une personne exercées dans un axe vertical ou selon la pente du toit.
Lee Vicki Parker
Macrae & Co.
LandOfFree
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