Linear guide

F - Mech Eng,Light,Heat,Weapons – 16 – C

Patent

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Details

F16C 29/02 (2006.01)

Patent

CA 2444049

A linear guide comprises a rail (1) having several running tracks (2), and a carriage (3) with at least one sliding element (4), which is opposite the running tracks (2) and has an inclined surface (5) on the side facing away from the rail (1), where a shiftable adjuster (6) that is provided between the sliding element (4) and the carriage (3) has a surface (7) resting in shiftable fashion against the inclined surface (5) of the sliding element (4). In order to automatically adjust the bearing clearance, the adjuster (6) is pre-tensioned against the inclined surface (5) of the sliding element (4), meaning that a force component results on the sliding element (4) perpendicular to the running tracks (2) opposite the sliding element (4), and the contacting surfaces (7, 5) of the adjuster (6) and the sliding element (4) have corresponding steps, designed such that, due to the pre-tension of adjuster (6) and with the corresponding clearance, the steps on the surface (7) of the adjuster (6) can slide over the steps on the inclined surface (5) of the sliding element (4) as it moves in the direction of the running tracks of the rail (1) (Fig.1) .

L'invention concerne un guide linéaire comprenant un rail (1) qui présente plusieurs glissières (2), et un chariot (3) qui comporte au moins un coulisseau (4) faisant face aux glissières (2). Ce coulisseau (4) présente, sur sa face opposée aux glissières (2), une surface inclinée (5). Un élément de réglage (6) mobile, situé entre le coulisseau (4) et le chariot (3), est en contact avec le coulisseau (4), respectivement une surface surface (7) de l'élément de réglage étant en contact avec la surface inclinée (5) du coulisseau (4) de telle manière qu'il puisse se déplacer. Pour le réglage automatique du jeu de palier, l'élément de réglage (6) est serré contre la surface inclinée (5) du coulisseau (4) de telle manière que l'on obtienne une composante de force sur le coulisseau (4) perpendiculaire aux glissières (2) opposées au coulisseau (4). Les surfaces (7, 5) en contact mutuel de l'élément de réglage (6) et du coulisseau (4) ont une configuration étagée correspondante de telle manière les étages de la surface concernée (7) de l'élément de réglage (6), en raison de son serrage, peut glisser au-dessus des étages de la surface inclinée (5) du coulisseau (4) qui est déplacé d'un jeu correspondant en direction des glissières du rail (1).

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