| 摘要 |
For slidably mounting a panel such as a door on a railed track, a roller assembly including a roller having a peripheral groove for sliding on the track rail, housing structure for mounting the roller in the panel, and a rigid metal stabilizer element carried by the housing structure and having a grooved or notched extremity for overlying the rail, in tandem relation to the roller, to prevent derailment of the roller. The stabilizer element is vertically slidable in the housing structure so as to ride smoothly along the rail, accommodating local irregularities or variations in rail height. |
