Linear locking device

B - Operations – Transporting – 60 – N

Patent

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Details

B60N 2/08 (2006.01) B60N 2/23 (2006.01) G05G 5/22 (2006.01)

Patent

CA 2162524

An infinitely adjustable linear locking assembly for vehicle seats is disclosed which includes a movable elongated element defining a longitudinal axis. First and second roller ball assemblies coaxial with the elongated element are provided, which assemblies have at least two substantially equidistantly spaced apart roller balls surrounding the elongated element. First and second roller ball housings contain the first and second roller ball assemblies, respectively. The housings are coaxial with the elongated element and have internal wedging surfaces for wedging the roller balls between the internal wedging surfaces and the elongated element. A rotatable locking member is provided adjacent to each roller ball assembly, with the locking member being coaxial with the moveable element and rotatable about the elongated element. Each locking member has a cam for urging each roller ball in an adjacent roller ball assembly into wedging relationship between the internal wedging surface and the elongated element upon rotation of the locking member in a first direction, and for releasing the wedging relationship upon rotation of the locking member in a second direction which is reverse to the first direction.

Dispositif de verrouillage linéaire infiniment réglable pour des sièges de véhicules. Le dispositif comprend un élément allongé mobile définissant un axe longitudinal ainsi qu'un premier et un deuxième ensembles de billes de roulement coaxiaux avec l'élément allongé. Ces ensembles comprennent au moins deux billes de roulement espacées de manière équidistante et entourant l'élément allongé. Un premier et un deuxième logements renferment les premier et deuxième ensembles de billes de roulement, respectivement. Les logements sont coaxiaux avec l'élément allongé et sont munis de surfaces de coincement intérieures de façon à coincer les billes de roulement entre ces surfaces et l'élément allongé. Un élément de verrouillage rotatif est placé contigu à chaque ensemble de billes, l'élément de verrouillage étant coaxial avec l'élément mobile et rotatif par rapport à l'élément allongé. Chaque élément de verrouillage comprend une came pour comprimer chaque bille dans un ensemble contigu de bille de roulement dans une relation de coincement entre la surface de coincement intérieure et l'élément allongé en tournant l'élément de verrouillage dans une première direction. La relation de coincement est terminée en tournant l'élément de verrouillage dans une deuxième direction qui est à l'inverse de la première.

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