| 摘要 |
An assembly including a frame, in particular a frame for a personal conveyance, includes at least one sub-assembly including: a first frame member (9,10;79); a second frame member (27,28,59,60;80); and a locking mechanism for arresting movement of the first frame member (9,10;79) relative to the second frame member (27,28,59,60;80) in any one of a number of positions. The locking mechanism includes: a component (36,37,59,60;64) provided with an array of apertures (44-48,63;68-70), fixed in position relative to one of the first and second frame members; and at least one engagement member (49,50;72), attached to the other of the first and second frame members and shaped to establish a lock when inserted in a position of engagement with at least part of an edge (73,74) of one of the apertures (44-48,63;68-70). At least one of the engagement member(s) (49,50;72) and the component (36,37;64) is retractable relative to at least part of the other. The sub-assembly is provided with at least one component (75) including at least one plug (57,58;76,77;92) for insertion into one of the apertures (44-48,63; 68-70) so as to occupy at least a part of the aperture (44-48,63;68-70) whilst allowing movement of the engagement member(s) (49,50;72) past the aperture (44-48,63;68-70). |
