초록 ▼

A plurality of roller assemblies are mounted on the side liner walls of the washing compartment of an automatic dishwashing machine to movably support a dishrack which is insertable and withdrawable from the compartment to facilitate loading and unloading. Each roller assembly comprises three rust a

A plurality of roller assemblies are mounted on the side liner walls of the washing compartment of an automatic dishwashing machine to movably support a dishrack which is insertable and withdrawable from the compartment to facilitate loading and unloading. Each roller assembly comprises three rust and corrosion proof plastic components, including a stud, a bushing screwed onto the stud and a roller rotatably mounted on the bushing, and the roller assembly is secured to the liner wall by a metal screw which extends through a hole in the wall and engages the stud. A sealing gasket is disposed around the screw between the stud and the liner wall to prevent liquid in the compartment from reaching the hole and the screw. The stud has a screw-receiving threadable bore which is closed at one end so as to completely encapsulate the screw and prevent liquid from reaching it. The stud has an externally threaded shank which extends into a threaded bore in the bushing which is closed at one end. The bushing has a flared end, to prevent axial removal of the roller.

대표청구항 ▼

A roller assembly mountable on a component extending from one member to movably support another member comprising: a stud having means to enable its attachment to said one member, said means comprising a bore extending into said stud and closed at one end and open at its other end and means engageab

A roller assembly mountable on a component extending from one member to movably support another member comprising: a stud having means to enable its attachment to said one member, said means comprising a bore extending into said stud and closed at one end and open at its other end and means engageable with said bore for attaining said stud to said one member, said stud having an externally threaded portion; a bushing having an external bearing portion and a threaded bore closed at one end and open at its other end for receiving said externally threaded portion of said stud whereby said bushing is fixedly but removably mounted on said stud; and a roller having a bore for receiving said external bearing portion of said bushing whereby said roller is rotatably mounted on said bushing, said bushing including means engageable with said roller to prevent axial removal of said roller from said bushing.