초록 ▼

A caster assembly for engaging, lifting and roll transporting columns of support racks, such as warehouse pallet racks, for movement of the support racks, includes an adaptor bracket secured to a housing of the caster assembly for engaging holes arranged on a web portion of a two-lines-of-holes-type

A caster assembly for engaging, lifting and roll transporting columns of support racks, such as warehouse pallet racks, for movement of the support racks, includes an adaptor bracket secured to a housing of the caster assembly for engaging holes arranged on a web portion of a two-lines-of-holes-type column. The adaptor bracket is secured to the housing using fasteners arranged through selectively spaced fastener holes through a front wall of the housing. For a line-of-holes single type column, the adaptor bracket can be removed and individual lugs can be secured to the selectively spaced holes of the housing which correspond to the hole spacing of the column. Thus, the same caster assembly can be adapted to engage a column of either type.

대표청구항 ▼

[ We claim:] [1.] A caster assembly for lifting a column, comprising at least one wheel engageable with a surface which supports the column;a housing for engaging a column;a substantially horizontal first strut pivotally connected to said housing and connected to a first wheel;a first lever pivotall

[ We claim:] [1.] A caster assembly for lifting a column, comprising at least one wheel engageable with a surface which supports the column;a housing for engaging a column;a substantially horizontal first strut pivotally connected to said housing and connected to a first wheel;a first lever pivotally connected to said first strut;a first knee brace pivotably connected to said first lever and to said housing;pivoting of said first lever in a first direction closing an angle defined between the housing and the first strut, and pivoting the first lever in a second direction opening the angle defined between said housing and said first strut.