Patent ID: 9579995
Date: 2017-02-28
CPC Classifications: B60N,F16C

Claim:
1. A commercial vehicle seat, comprising: a seat substructure supporting part; a seat substructure base part; a seat part; a pair of rail elements, wherein the seat substructure supporting part is connected to the seat substructure base part by the rail elements, wherein the rail elements allow the seat substructure supporting part to be translated relative to the seat substructure base part, wherein the seat substructure supporting part comprises an upper supporting part joined to an underside of the seat part and a lower supporting part joined to the seat substructure base part, at least one roller bearing with a roller bearing ring, which extends orbitally about a rotary axis running in a vertical direction of said vehicle seat, arranged between the upper supporting part and the lower supporting part, in order to rotatably support said upper supporting part relative to said lower supporting part, wherein the roller bearing is a ball bearing with a ball bearing race cage configured essentially like a ribbon and having a shape of a segment of a cone surface, wherein first sections of the ball bearing race cage are configured to hold balls of the ball bearing, wherein second sections of the ball bearing race cage are configured to space balls apart from each other, wherein the first section passes over second sections between the balls, wherein the second sections have first and second individual elements, wherein the first individual elements are protruding elements of the second sections which are directed towards the ball bearing and are diagonally opposed to each other above and below a midline of the race cage and wherein the second individual elements are diagonally opposed to each other above and below the midline of the race cage in a direction perpendicular to a line through the diagonally opposed first individual elements and are slightly set back as regards a direction towards a ball center of one of the balls as compared to the first individual elements, such that the balls roll inside the ball bearing race cage on the first individual elements, and wherein at least a portion of the rail elements and at least a portion of the roller bearing ring are intersected by a common plane, wherein the common plane is perpendicular to the rotary axis running in the vertical direction of said vehicle seat.