Supports – Video display screen support – Adjustably orientable video screen support
Patent
1989-10-30
1991-06-18
Chin-Shue, Alvin C.
Supports
Video display screen support
Adjustably orientable video screen support
248179, 248371, 248349, F16M 1300
Patent
active
050244159
ABSTRACT:
Apparatus is disclosed for mounting a display monitor on a base and for permitting and limiting the extent of tilting and rotating of the monitor. The apparatus is made up of a spherical projection extending from the bottom of the monitor and a cavity formed in the base for accommodating the spherical projection. A collar surrounds the cavity and has an annular groove for slidably accommodating a swivel ring therein. The ring and the spherical projection have mating surfaces permitting tilting of the monitor. Projecting from the top of the swivel ring are lugs for engaging slots in the spherical projection such that when the monitor rotates, the lugs in the slots force the swivel ring to rotate with the spherical projection. A pair of swivel stops extending from a side of the groove engage a tooth extending from the swivel ring, limiting the extent of rotation of the swivel ring in the groove.
The monitor and base are connected through a key and lock arrangement which includes a lock in the spherical projection of a size and shape to communicate with a key in the base to control the extent of tilting of the monitor. The key and lock arrangement requires that the monitor be rotated past a swivel stop to a predetermined position with respect to the base before it can be removed from the base. To prevent rotation of the ring past the swivel stop, the tooth is mounted on a flexible portion of the ring and an opening in the collar allows access to the flexible section for moving the section away from the swivel stop, allowing the tooth to clear the stop and the swivel ring to rotate past it to the predetermined position, permitting removal of the monitor from the base.
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AT&T Bell Laboratories
Chin-Shue Alvin C.
Marshall D. A.
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