초록 ▼

A computer support includes a base member to which an inner swing arm is pivotally mounted with an outer swing arm being pivotally mounted on the outer end of the inner swing arm and supporting a platform support by a lazy-susan bearing on its outer end. The pivotal connections are provided by pivot

A computer support includes a base member to which an inner swing arm is pivotally mounted with an outer swing arm being pivotally mounted on the outer end of the inner swing arm and supporting a platform support by a lazy-susan bearing on its outer end. The pivotal connections are provided by pivot shafts over which pivot sleeves are positioned with upper and lower spaced roller bearing sets therebetween and a low-friction load bearing sleeve of substantial hardness engaging the lower end of each pivot sleeve to support same. Brake/lock means at each pivot permits retention of the arms in any desired rotational position in separate horizontal planes of movement.

대표청구항 ▼

A cantilever support system for supporting a supported item for movement in a horizontal plane above a fixed surface comprising: base means fixed to said fixed surface and including a first vertical pivot shaft extending upwardly from attachment means on the fixed surface; first swing arm means incl

A cantilever support system for supporting a supported item for movement in a horizontal plane above a fixed surface comprising: base means fixed to said fixed surface and including a first vertical pivot shaft extending upwardly from attachment means on the fixed surface; first swing arm means including an outer end and an inner end mounted on said base means and including a first vertical pivot sleeve on its inner end fitted over said vertical pivot shaft and engageable therewith by first roller bearing means comprising an upper roller bearing set in the upper end of said first vertical pivot sleeve and a lower roller bearing set spaced substantial distance below said upper bearing set in the lower end of said first vertical pivot sleeve, and further including second vertical pivot shaft means extending upwardly from said outer end of said first swing arm means; second swing arm means having an outer end and an inner end, said inner end being pivotally mounted on the outer end of the first swing arm means by a second pivot sleeve and second roller bearing means therebetween; carrier plate means mounted on the outer end of said second swing arm means; rotary bearing means attached to and supported by carrier plate means; support platform means supported by said rotary bearing means to provide a movable support for any item positioned on said support platform means; and wherein said base means additionally includes a first tubular sleeve bearing fitted over said first vertical pivot shaft and positioned beneath and supportingly engaging the lower end of said first vertical pivot sleeve and additionally including a second tubular sleeve bearing fitted over said second vertical pivot shaft and positioned beneath and supportingly engaging the lower end of said second pivot sleeve.