| 摘要 |
PCT No. PCT/SE85/00084 Sec. 371 Date Oct. 18, 1985 Sec. 102(e) Date Oct. 18, 1985 PCT Filed Feb. 19, 1985 PCT Pub. No. WO85/03633 PCT Pub. Date Aug. 29, 1985.A chair assembly intended for use when taking X-ray pictures includes a chair and wheels for rotating and moving the chair relative to a carriage structure in the directions of the X- and Y-coordinates. Movement in the direction of these coordinates is effected by two guide frames provided with guides. A separate support frame provided with castors is arranged on the seat parts of the chair to prevent the chair from toppling or tipping. The castors of the support frame are normally located at a small distance from the underlying support surface, so as not to impede rotational and coordinate movements of respective chair members. Chair movements are controlled by a stirrup-like control bar having provided in the central portion thereof other control parts for activating the release of locking parts which lock the chair components against rotary movement and movement in the direction of the coordinates. |
