| 摘要 |
A chair arrangement in which the seat and back of the chair are tiltable relative to one another and relative to the base (2) of the chair, where the seat frame of the chair consists of a forward, spring-loaded seat mounting (3) which is sprung against a balance board (4) attached to an upper portion (2') of the base, the seat mounting (3) at the rear (3') being tiltably connected to a connecting piece (5) via a first tilt shaft (6), wherein the connecting piece (5) at the rear (5') is rigidly connected to the chair back frame (7), and wherein the connecting piece (5) at its forward end (5") is articulated to the forward seat mounting (3). The chair back (7) is equipped with a spring-loaded neck rest holder (9) which is tiltable about a pivot joint (10) in a neck rest mechanism (11). The neck rest holder (9) has at least one tilt arm (14) which is pivotally connected to a single back rod (13), which back rod (13) extends down along the back (7). The rod (13) at the bottom is articulated to a rear end (16') of a bar (16) that extends forwards towards a rear, lower portion (3') of the seat mounting (3); and the bar (16): either a) is at its forward end (16") in engagement with (17), and at an area between the forward (16") and rear (16') portion of the bar attached to, the rear, lower portion (3') of the seat mounting; or b) is at its forward end (16") in tiltable engagement with the rear, lower portion (3') of the mounting, and at an area (16"') between the forward and rear portion of the bar tiltably connected to the connecting piece (5) via a second tilt shaft (19) that is operatively connected to the connecting piece (5) and extends transverse to the bar; or c) is at its forward end (16") in tiltable engagement with the rear lower portion (3') of the seat mounting (3), and at an area between the forward and rear portion of the bar in abutment with the first tilt shaft (6). |
