| 摘要 |
A tray (4) mounted on slide (3) is moved by screw (5) to and from tray (2) fixed into a stand (1). A slide is several times longer than max. length which can be moved by screw. A stand has internal slide groove forming strips on either side of open groove. The slide is guided upwards towards these strips. Cooperating parts (18,19) on slide and moving tray are used to position tray on slide. |
