| 摘要 |
Device (1) for height adjustment of a module, such as a children's seat (3) on a stem (2) in a trolley or a chair, characterized in that the locking device (1) comprises a movable casing (4) which partly or completely surrounds the stem (2), a friction element (5) and a handle (6) which rotates eccentrically in order to tighten the friction element (5) against the stem (2) and providing friction between the locking device (1) and the stem (2). The children's seat (3) may comprise a footrest (20) characterized in that two rails (21) are received in guides (22) integrated in the seat, such that the footrest (20) may be displaced telescopically in relation to the seat (3). |
