| 摘要 |
An adjustment mechanism is disclosed for adjusting a support means such as wheels (5a, 5b) relative to a housing structure (2, 3) retaining said wheels (5a, 5b), the adjustment mechanism including a screw member (7) selectably movable in a direction (22) transverse to the intended adjusting movement direction (6) of said wheels (5a, 5b), the movement of said screw member (7) acting to move an adjustment member or members (9, 9a, 9b) in a direction perpendicular to said directions (6) and (22) with movement of said adjustment member or members causing movement of said wheels (5a, 5b) in said adjusting movement direction (6). |
