| 摘要 |
<p>The device (1) has a backrest (2) supported against back of a user. A belt (3) is fixed to the backrest by a fixation unit (4), and encircles the waist of the user. The fixation unit authorizes displacement of the belt in translation with respect to the backrest along a longitudinal direction (I-I) between upper and lower positions. The fixation unit comprises rods (4a, 4b) whose ends (40a, 40b) are fixed to the backrest, where the rods extend along the direction. Loops (5a, 5b) are integrated with the belt to slidably receive free intermediate sections (42a, 42b) of the rods, respectively.</p> |
