| 摘要 |
An articulated multi-swivel chair operable for access to stations disposed within a 360 degree circular range about the chair, includes a mechanism composed of at least two friction loadable pivots each supporting a corresponding link and, in combination, acting to support, with universal motion in two lateral axes, a chair body. Each of the pivots are preferably formed utilizing a tapered roller bearing or thrust bearing or bushing which are adjustable to provide a predetermined level of pivot friction by tightening an adjustment device such as an adjusting nut associated with each bearing. The first or lowest pivot is supported in a base which is of appropriate design to prevent tipping or which may be bolted or otherwise secured to the floor. To prevent pivot lock-up and provide shock absorbtion when the links are fully extended, repulsion devices are provided in the links. These are preferably in the form of magnets being so located in the links as to have two magnet disposed in proximity to each other with like poles facing, i.e. when adjacent links are aligned.
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