Vertically adjustable table
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 4, 1997
Grant Date -
N/A
app pub date -
Dec 2, 1994
filing date -
Dec 2, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vertically adjustable desk, table or workstation has a work surface carried between a pair of leg assemblies. The leg assemblies have telescoping sleeves and a ratcheting latch mechanism operatively interconnecting the sleeves. The ratcheting latch mechanism has a toggle preferably in the inner sleeve and a ratchet opening, preferably in the outer sleeve. The opening is defined in part by an edge formed with a series of lateral inclined ratchet slots at which a latch pin on the toggle can set the vertical height. The toggle is spring biased to either of two over-center alignments. Upper and lower edges of the opening respectively toggle the latch mechanism to move the pin out of engagement with the slots at the top limit of travel, and back into engagement with the slots at the bottom limit of travel. The latch pin follows the ratchet slots in progression as the table is raised, and is switched by the top and bottom edge portions to disengage or engage the slots. Gas springs optionally may be included to produce an upward balancing force for supporting the work surface.
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