Patent ID: 8840201

Claim:
A dishwashing appliance defining lateral, transverse, and vertical directions, the dishwashing appliance comprising: a wash chamber having laterally opposing side walls; a rack assembly configured for receipt of articles for washing, said rack assembly having opposing lateral sides, a plurality of bosses projecting from said rack assembly; a pair of slides attached with the opposing lateral sides of said rack assembly, said slides configured for sliding movement of said rack assembly relative to said wash chamber; and a plurality of rack guides supported by said slide and positioned about opposing lateral sides of said rack assembly, each of said rack guides comprising a housing; a latch slidably attached to a top portion of said housing, said latch defining a latch opening; and a detent block received into said housing and slidable along the transverse direction relative to said housing, said detent block defining a track into which a first boss from said plurality of bosses is slidably received, the track defining a plurality of vertically-spaced apart positions at which the first boss can be located so as to provide for vertical positioning of said rack assembly, the track also defining a channel connecting the plurality of vertically-spaced apart positions and controlling the movement of said first boss between the vertically-spaced apart positions, the track also defining an exit connected with the channel so that the first boss may be removed from within said detent block by lifting said rack assembly along the vertical direction when the latch opening is aligned with the exit; wherein the track is configured so that movement of said rack assembly along the vertical direction between said vertically-spaced apart positions causes said detent block to slide along the transverse direction relative to said housing.