| 摘要 |
A concealed slide assembly comprises an internal guide rail element 10 including a guide rail element 12 and a first sliding element 20 both having an identical shape. Both the guide rail element 12 and the first sliding element 20 are installed symmetrically into a plastic S-shaped first bearing bushing 30. The first bearing bushing 30 includes a middle portion 31 accommodated by a space formed by the guide rail element 12 and the first sliding element 20, a plurality of horizontal and vertical cylindrical roller ball bearings. The guide rail element 12 and the first sliding element 20 are bent to form corresponding are guiding grooves for installing a plurality of ball bearings 60. The installation of the bearings 60, enables the first sliding element 20 to slide with respect to the guide rail element 12. The first sliding element 20 can also comprise an inverted U-shaped second bearing bushing (50, Figure 6) having cylindrical roller bearings (54, 55, 56, Figure 6) to slidably install a second sliding element (40, Figure 6) forming three-piece drawer slide. |
