Improved control cable and related dynamic seal

Details Improved control cable and related dynamic seal Improved control cable and related dynamic seal

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 1/10 (2006.01) F16C 1/26 (2006.01)

Patent

CA 2146087

A new remote control cable (11) has a core (39) with a jacket (43) made of nylon 12 having polytetrafluoro- ethylene as a constituent. The "gap" between the cable core (39) and the cable conduit (45) is decreased compared to corresponding prior art cables and the thickness of the core jacket (43) is about three times that of corresponding prior art cables. Core column strength is about doubled. The cable (11) is equipped with a new dynamic sealing device (10) made of a thermoplastic polyurethane. Such device (10) has a pair of sealing ridges (69, 71) of differing diameter which bear against a rod (37a) moving with respect to the cable conduit (45). The outer ridge (69) excludes airborne contaminants and the inner ridge (71) retains a synthetic lubricant (53).

Un nouveau câble de commande à distance (11) est pourvu d'une âme (39) et d'une gaine (43) en nylon (12) avec composant de polytétrafluoréthylène. L'espace entre l'âme (39) du câble et son conduit (45) est réduit en comparaison aux câbles correspondants antérieurs et l'épaisseur de la gaine (43) de l'âme est environ trois fois celle des câbles correspondants produits à partir d'une technologie antérieure. La solidité de l'âme de la colonne est pratiquement doublée. Le câble (11) est doté d'un nouveau dispositif d'étanchéité dynamique (10) fait de polyuréthanne thermoplastique. Ce dispositif (10) est muni de deux rides d'étanchéité (69, 71), de diamètres différents, qui s'appuient à une tige (37a) mobile par rapport au conduit (45) du câble. La ride extérieure (69) élimine les contaminants de l'air et la ride intérieure (71) conserve un lubrifiant synthétique (53).

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