Standard_Parts_Catalogue

Page 1903 | 3.8 Adjusting, Moving with Guides, Spindles and Ball Rollers 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Self-retracting mechanism Telescopic slides can have an integrated self-retracting mechanism, which improves considerably the ease of use when closing the extensions. In the version shown in the example, the slides are ret- racted and held in the back end position automatically by means of a retraction mechanism on the last 22 mm of stroke with a force of approximately 30 newtons for each slide pair. This force has to be overcome accordingly on opening the extension. This variant is also designed in such a way that me- chanism uncouples and will not be damaged when the extension is opened or closed in a jerky manner or too quickly. On the following stroke, the self-retracting me- chanism clicks back into place automatically, ensuring that the function remains intact. Self-retracting mechanism, dampened Dampened self-retracting mechanisms are also called “soft-close” and are divided into two main functions. They offer the best possible ease of use on closing the extension. In the example shown, the self-retracting mechanism takes over the automatic retraction of the slides on the last 40 mm of stroke in the back stop position, where the slides are then held in place. The retraction force is about 35 newtons per slide pair. Also the dampening me- chanism slows down to a considerably reduced speed the closing movement on the said stroke, while achieving a extremely gentle and smooth closing movement. This retraction force has to be overcome accordingly on ope- ning the extension. When dampened self-retracting mechanisms are used, the specified load values and stroke speeds may not be exceeded on reaching the retraction mechanism. Telescopic Slides Component Options