| 摘要 |
A back-rest for a chair, armchair, seat or the like, comprises two lateral back shells arranged like the supporting surfaces of horse saddles, which are concave to the seat surface in relation to an essentially vertical axis and convex above the seat surface in relation to a horizontal transverse axis. Each back shell (1) is secured (22, 23) to a common transverse rail (20) by leaf spring (21) with a loop. |
