| 摘要 |
<p>A height adjustable footrest with a treadboard part (1), a support structure (2) and an adjustment structure (3). The support structure has leg structures (4, 5), hinged to the treadboard part (1) about spaced apart hinge axes (16, 17), crossing each other and hinged to each other or to a base part. The adjustment structure (3) has a toothed rack (25, 26) and a catch (27) for engagement with the rack (25, 26) in selectable positions. The catch (27) and/or the rack (25, 26) is displaceable transverse to the longitudinal direction (28) of the rack between a protruded position in which the catch (27) engages the rack (25, 26) and a retracted position in which the catch (27) and the rack (25, 26) are released. The teeth (30) of the rack (25, 26) each project transverse to the engagement directions (29). In the protruded position, the catch (27) projects between the rack (25, 26) and the counter surface (26, 25) and contacts a counter surface (26, 25) facing the rack (25, 26).</p> |
