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Telescopic adjustable height apparatus
| Details |
Inventors: Gutgsell, David R.;
Assignee: Ditto Sales (Jasper, IN)
Primary Examiner: Ramirez; Ramon O.
Assistant Examiner:
Attorney, Agent or Firm: Woodard, Emhardt, Naughton Moriarty & McNett
A telescopic adjustable height apparatus designed to adjust the height of tabletops comprises a pair of slidably engaged columns, a multiple-step groove, and a hand wheel locking mechanism to secure the tabletop at the desired height. The column system includes an inner column, connected at one end to a tabletop and an outer column, connected at one end to a base structure. The inner column defines the vertical multiple-step groove. The outer column possesses a bore in one wall of the column through which the hand wheel fastener passes, and this bore maintains the position of the hand wheel locking mechanism. A first detent is located at the base of a first step and provides a first seat for the hand wheel locking mechanism. A second detent is located at the base of a second step and provides a second seat for the hand wheel locking mechanism. The hand wheel locking mechanism comprises a pin with a connection end shaped to be removably received within a detent, a bearing collar, and a hand wheel. |
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DETAILED DESCRIPTION A telescopic adjustable height apparatus for raising and lowering tabletops is described.
The telescopic adjustable height apparatus is capable of being locked in preferably two different height positions by a retractable locking means, each position being defined by a detent.
Above each detent, there is a step defined within a vertical multiple-step groove, a first step defining a first groove depth, and a second step defining a second groove depth.
In one embodiment of the invention, the telescopic adjustable height apparatus possesses an inner column and an outer column.
The inner column contains and defines a vertical multiple-step groove on its outer surface.
The groove possesses a first step defining a first groove depth, and a second step defining a second groove depth.
At the base of the first step is located a first detent which provides a first seat for the retractable locking means.
At the base of the second step, a second detent provides a second seat for the retractable locking means.
The inner surface of the vertical multiple-step groove forms a shape identical to that of a shaped connection end of the retractable locking means.
When retractable locking means passes through a bore in one wall of the outer column.
The bore controls the vertical motion of the retractable locking means relative to the ground surface.
The retractable locking means includes a pin.
The pin may be threaded or smooth and it includes a connection end shaped to be removably received within a detent.
When the retractable locking means is engaged at the farthest end, relative to the second detent, of the vertical multiple-step groove, the tabletop may be secured at its lowest point relative to the ground surface.
As well, when the retractable locking means is slidably engaged into the first detent at its shaped connection end, the tabletop may be secured at an intermediate height relative to the ground surface.
When the retractable locking means is slidably engaged into the second detent at its connection end, the tabletop may be secured at its highest point relative to the ground surface
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