Vertically-adjustable drawer suspension

Claim 1

In combination with a cabinet structure, a vertically adjustable suspension system for drawers and trays including apertured mounting strips formed to define a space within said mounting strip at least on installation thereof, and secured in vertical positions adjacent the front and rear of a cabinet structure on opposite sides of space extending to the rear of a front opening in said structure, said system also including opposite and normally fixed side rails each provided with front and rear brackets engageable respectively with the apertured strips on one side of said front opening, and a moveable supporting rail adjacent each of said normally fixed rails, said fixed rails each having guide means at the outer portion thereof normally interengaged with the adjacent moveable rail, and said moveable rail having guide means at the inner portion thereof normally interengaged with the adjacent fixed rail, wherein the improvement comprises: tongue means on the said rear brackets, said tongue means having a relationship with respect to said rear mounting strips selected to render said tongue means engageable and disengageable with apertures in said rear mounting strips in a selected substantially horizontal direction other than tangential with respect to the axis of said front mounting strips, and tongue means on the said brackets adjacent the front of said fixed rails, said latter tongue means having an offset configuration selected to render said latter tongue means engageable with apertures in said front mounting strips and moveable downwardly after engagement to cause said offset configuration to lock said brackets against lateral withdrawal from said mounting strips, the engagement of said latter tongue means (with said brackets assembled to said normally fixed rails) preventing disengagement of said tongue means on said rear brackets, said rear mounting strips having side-opening apertures, and said rear bracket tongue means being engagable therewith exclusively in a first position angularly displaced about a vertical axis from the second position corresponding to the installed position of the fixed rail associated therewith determined by the engagement of said tongue means adjacent the front of said fixed rail.