Lumbar support and head rest adjustment mechanism

A - Human Necessities – 47 – C

Patent

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Details

A47C 7/44 (2006.01) A47C 7/38 (2006.01) A47C 9/10 (2006.01) A63B 23/02 (2006.01)

Patent

CA 2740961

A furniture member mechanism includes upper and lower housing structures, the lower housing structure including first and second side frames. A mechanism is disposed within both the upper and lower housing structures, including first and second lever arms having an upper end, a body extending into both the upper and lower housing structures, and a lower end positioned in the lower housing structure and rotatably connected to the first and second side frames. A bracket is connected to the first and second side frames. First and second biasing members are connected to the first and second lever arms and the bracket. The first or second biasing member extends when the first or second lever arm is rotated from an initial position in a lever forward direction. A biasing force of the first or second biasing member biases the first or second lever arm toward the initial position.

L'invention porte sur un mécanisme d'élément de meuble comportant des structures de boîtier supérieure et inférieure, la structure de boîtier inférieure comprenant des première et seconde armatures latérales. Un mécanisme est disposé à l'intérieur à la fois des structures de boîtier supérieure et inférieure, et comprend des premier et second bras leviers ayant une extrémité supérieure, un corps s'étendant à l'intérieur des structures de boîtier à la fois supérieure et inférieure, et une extrémité inférieure positionnée dans la structure de boîtier inférieure et reliée de façon rotative aux première et seconde armatures latérales. Une équerre est reliée aux première et seconde armatures latérales. Les premier et second éléments de sollicitation sont reliés aux premier et second bras de levier et au support. Le premier ou le second élément de sollicitation se déploie lorsque le premier ou le second bras de levier est amené à tourner à partir d'une position initiale dans une direction vers l'avant de levier. Une force de sollicitation du premier ou second élément de sollicitation sollicite le premier ou second bras de levier vers la position initiale.

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