Importance

Loading Importance Indicators...

Abstract

A roller track comprises a series of rollers having their axes positioned mutually parallel and transverse to the longitudinal direction of the series. The roller are rotatably journalled in an elongated carrier which is received in a U-channel which is closable at its open upper side by a cover plate which may be secure to the upper edges of the section flanges. The carrier with the rollers is movable vertically between a lower position, in which the rollers are completely sunk in the housing, and an upper or operative position, in which the rollers extend by a fraction of their diameter through corresponding apertures in the cover plate. The operative position is upwardly limited in that at both sides of the carrier, portions of the carrier abut from below against inwardly projecting flange portions of the channel. At least one of the upright flanges of the channel has an outer portion which is fixedly connected with a channel web and an inner portion, normally in engagement with the outer portion from the inside thereof and coupled therewith in the vertical direction. The inner portion is constructed such that it can, in the lowermost position of the roller carrier and, with the cover plate removed, inwardly tilted about its lower edge supported in the corner between the outer portion and the channel web so that the inner portion will be disconnected from the outer portion and removed.

Loading the Abstract Image...

First Claim