Linear guide device

A linear guide device, comprising

• a rail that has a first advancing device extending along a longitudinal direction,
• a carriage displaceable relative to the rail along the longitudinal direction and having a second advancing device extending along the longitudinal direction,
• a cage displaceable relative to the rail and the carriage along the longitudinal direction, and
• a coupling element that is designed for simultaneously engaging into the first and the second advancing device in order to cause a movement of the cage relative to at least one of the rail and the carriage when the carriage is advanced relative to the rail along the longitudinal direction,
• wherein the coupling element has at least one projection that interacts with a stopping face formed on at least one of the rail and the carriage in order to retain the coupling element in the linear guide device,
• wherein the stopping face is a boundary of the carriage or the rail facing the cage in order to prevent a movement of the coupling element in the direction of the rail or the carriage,
• wherein at least one of the rail and the carriage has a groove, and wherein the stopping face is formed by a wall of the groove in order to limit the movement of the coupling element parallel to the carriage or the rail, and
• wherein the coupling element has at least one first projection, which abuts on the groove, and one second projection, which abuts on the boundary.