E - Fixed Constructions – 06 – C
Patent
E - Fixed Constructions
06
C
E06C 1/20 (2006.01)
Patent
CA 2538708
A dynamic hinge 100 includes a first member 105 connected to a first ladder portion 210 of a ladder, and a second member 115 connected to a second ladder portion 210. The first member 105 pivots relative to the second member 115 about a pivot axis P that does not intersect both the first and second members 105, 115. The first member 105 includes first and second parallel segments 110, 130, and the second member includes a third and fourth parallel segments 120, 140. A guide plate 150 is attached to either the first or second member 105, 115, and the guide plate 150 is positioned between the first and second segments 110, 130 and between the third and fourth segments 120, 140. The guide plate 150 includes two non-linear slots 152, 154, and an other of the first and second members 105, 115 includes two pins 170, respectively adapted to slide within the two non-linear slots 152, 154. The pins 170 extend between either the first and second segments 110, 130 or the third and fourth segments 120, 140.
L'invention concerne une charnière dynamique (100) qui comprend un premier élément (105) relié à une première partie d'échelle (210) d'une échelle, et un second élément (115) relié à une second partie d'échelle (210). Le premier élément (105) pivote par rapport au second (115) autour d'un axe pivot (P) ne faisant pas intersection avec les premier et second éléments (105, 115). Le premier élément (105) comprend un premier et un deuxième segments parallèles (110, 130) et le second élément comprend un troisième et un quatrième segments parallèles (120, 140). Une plaque guide (150) est fixée soit au premier, soit au second élément (105, 115), et la plaque guide (150) est positionnée entre les segments (110, 130) et entre les segments (120, 140). Cette plaque guide (150) comprend deux rainures non linéaires (152, 154), et un autre des premier et second éléments (105, 115) comprend deux tiges (170) respectivement conçues afin de coulisser dans les deux rainures non linéaires (152, 154). Les tiges (170) s'étendent soit entre les premier et deuxième segments (110, 130) ou les troisième et quatrième segments (120, 140).
Dangrow Joseph C.
Winslow David A.
Robic
Werner Co.
LandOfFree
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