Caster assembly with sliding side support piece

A caster assembly for supporting an object, the caster assembly comprising:

• a) a caster wheel;
• b) a caster support rotatably supporting the caster wheel;
• c) a support housing rotatably affixed to the caster support and including a base support surface for engaging and supporting a bottom surface of an object to be supported;
• and
• d) first and second side support pieces mounted on the support housing, the first side support piece including a first side support surface adapted to engage and support a first side surface of the object and the second side support piece including a second side support surface adapted to engage and support a second side surface of the object, the first and second side support surfaces being transverse to the base support surface.

A method of supporting an object having a bottom surface and spaced apart first and second side walls extending upwardly from the bottom surface using a caster assembly, the steps of the method comprising:

• a) providing a caster assembly that includes a support member rotatably supporting the caster and first and second side support pieces mounted on the support member, the support member includes a base support surface for engaging and supporting a bottom surface of an object to be supported, the first side support piece includes a first side support surface for engaging and supporting a first side surface of the object and the second side support piece includes a second side support surface for engaging and supporting a second side surface of the object, the first and second side support surfaces being transverse to the base support surface and the second side support piece being slidably mounted on the support member for movement relative to the first side support piece;
• b) sliding the second side support piece such that a distance between the first and second side support surfaces is approximately equal to a distance between the first and second side walls of the object;
• and
• c) moving the caster assembly with respect to the object such that the base support surface engages and supports the bottom surface of the object and the first and second side support surfaces engage and support the first and second side walls of the object.