Adjustable display device
AssigneeEastern Electrical Equipment Co., Inc.
InventorBernard E. Shuman
Life of this patent
Estimating the term…
Abstract
A lightweight display device capable of vertical adjustment to desired height having a display frame attached to one end of a rod whose other end is formed with a pair of resilient arms having a plurality of teeth for the outer surface. The rod is positioned for ratchet-like vertical movement within a hollow tube having a threaded inner surface which engages with the teeth. The frame can be raised or lowered, along the length of the rod, by extending a vertical force thereto sufficient to deflect the arms of the rod away from the threads of the tube. When the vertical force is removed, the teeth re-engage with the threads to support the display frame at the desired height.
Claims7
A vertically adjustable display device comprising:
- a base,
- a hollow tube having means at the bottom thereof for mounting to said base,
- a rod having a portion disposed within said tube,
- said tube having a plurality of threads formed on its interior, and said rod being formed with a pair of resilient arms at the bottom end thereof, said arms each having a plurality of teeth on the outer surface thereof for engagement with the threads on the interior of said tube for supporting and adjusting the height of said rod relative to said tube, and
- a display frame attached to this top of said rod.
Dependencies are inferred from the claim text.