Patent ID: 6182583
Filing Date: 2001-02-06
Classification: A47B,A47C

Abstract:
A height adjustable table comprising:a floor contacting base including a first base section, and a second base section;a first height adjustable column disposed vertically above the first base section and supported by the first base section; and wherein the first height adjustable column includes a first portion attached to the first base section;a second height adjustable column disposed vertically above the second base section and supported by the second base section; and wherein the second height adjustable column includes a first portion attached to the second base section;wherein the first height adjustable column comprises at least a first telescoping spring height adjustment lifting mechanism;and wherein the second height adjustable column includes at least a first telescoping spring height adjustment lifting mechanism;a table top support disposed vertically above the first and second height adjustable columns and supported by the first and second height adjustable columns; wherein the table top support is adapted for support of a table top;a table top disposed vertically above the table top support and supported by the table top support;wherein each telescoping spring height adjustment lifting mechanism includes a resilient spring material; and wherein at least one telescoping spring height adjustment lifting mechanism is lockable; and wherein each lockable spring height adjustment lifting mechanism includes a movable actuation button, and wherein the movable actuation button is selectively movable from a first locked position to a second unlocked position; and, wherein each lockable telescoping spring height adjustment lifting mechanism must be actuated to adjust the height of the table top relative to the floor;an actuation mechanism supported by the height adjustment table for engaging and moving the actuation button of each lockable telescoping spring height adjustment lifting mechanism to the second unlocked position;and, wherein upon the actuation of each lockable telescoping spring height adjustment lifting mechanism, the resilient spring material of each telescoping spring height adjustment lifting mechanism may be compressed; and wherein upon actuation the resilient spring material of each telescoping spring height adjustment lifting mechanism, if compressed, will resiliently expand unless a sufficient compressive force is applied to the telescoping spring height adjustment lifting mechanisms;wherein the telescoping spring height adjustment lifting mechanisms of the first and second height adjustable columns are sealed against the introduction or loss of spring material during regular use within the table, which includes periods of height adjustment when the lockable telescoping spring height adjustment lifting mechanisms are actuated; and wherein the spring material of each telescoping spring height adjustment lifting mechanism is independent of the spring material of any other telescoping spring height adjustment lifting mechanisms in the height adjustable table; andwherein the actuation and resilient expansion of compressed spring material of each of the telescoping spring height adjustment lifting mechanisms results in an upward force applied to the table top causing the rising of the table top; and wherein each telescoping spring height adjustment lifting mechanism contributes significantly to the lifting forces applied to the table top; andwherein the first base section and the second base section do not move vertically relative to the floor during height adjustments; and, wherein the first portion of the first height adjustable column does not move relative to the first base section; and wherein the first portion of the second height adjustable column does not move relativer to the second base section.