| 摘要 |
A patient examination table, of the type used in an x-ray examination apparatus, has one end secured to a ceiling or floor stand via a tilt mechanism which permits the longitudinal axis of the table to be tilted upwardly or downwardly. The table can be tilted around an imaginary axis, the imaginary axis being movable roughly in the middle of the examination table. The tilt mechanism includes a driven element, which may be a part of the housing for the tilt mechanism, a first gear which is rigidly attached to the stand, a second gear which is rigidly attached to the examination table and a transmission linkage between the first and second gears which permits the second gear to be movable around the drive shaft of the first gear as the driven element is rotated. The second gear is rotated in an opposite direction to the direction of rotation of the driven element.
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