Rotary knob assembly

H - Electricity – 01 – H

Patent

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Details

H01H 19/14 (2006.01) H01C 10/00 (2006.01)

Patent

CA 2679678

A rotary knob assembly (100) includes a fixed raised boss (110) having a boss cavity (107) and a knob (102) optionally having a rotary switch stem (104) therein. The knob can include a portion that axially resides within the boss cavity such that impacts to the knob transfers to the fixed raised boss. The knob can further include a rigid core member (106) and an outer over-molded portion (108) over-molded on to the rigid core member. The fixed raised boss can include an outer circumference (118) and an inner circumference (116). The inner circumference of the boss and a portion of the rigid core member and the outer circumference of the boss and the outer mover-molded portion form a knob-boss interface (117) that sustains impacts to the rotary knob assembly while isolating a rotary switch (112) from impacts.

L'ensemble de sélecteur rotatif (100) selon l'invention inclut un bossage surélevé fixe (110) pourvu d'une cavité de bossage (107) et d'un bouton (102) doté optionnellement d'une tige de commutation rotative (104). Le bouton peut inclure une portion d'un point de vue axial se trouve à l'intérieur de la cavité de bossage de telle sorte que les impacts communiqués au bouton sont transférés au bossage surélevé fixe. Le bouton peut en outre inclure un élément de noyau rigide (106) et une portion surmoulée extérieure (108) surmoulée sur l'élément de noyau rigide. Le bossage surélevé fixe peut inclure une circonférence extérieure (118) et une circonférence intérieure (116). La circonférence intérieure du bossage et une portion de l'élément de noyau rigide et la circonférence extérieure du bossage et la portion surmoulée extérieure forment une interface bouton-bossage (117) qui soutient les impacts communiqués à l'ensemble de sélecteur rotatif tout en isolant un commutateur rotatif (112) des impacts.

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