초록 ▼

An improved escalator tread cleaning brush (12) is disclosed for use in cleaning the steps (14) of an escalator (10). A brush bar (28) forming a portion of the brush (12) mounts first, second and third sets of bristles (44, 46, 52). The first set of bristles is formed of wire tufts and has a relativ

An improved escalator tread cleaning brush (12) is disclosed for use in cleaning the steps (14) of an escalator (10). A brush bar (28) forming a portion of the brush (12) mounts first, second and third sets of bristles (44, 46, 52). The first set of bristles is formed of wire tufts and has a relatively elongate length for brushing the grooves (18) in the steps (14). The second set of bristles is formed of wire tufts and has a relatively short length for cleaning the tread (16) of the steps (14). The third set of bristles is formed of plastic tufts and has a relatively elongate length for cleaning the grooves (18). A spring bar (42) can be used to urge the bristles into cleaning contact with the steps (14). In a first modification, a weight (86) can be used to urge the bristles into cleaning contact with the steps. The brush bar (28) is prevented from movement relative to the rail housings (20, 22) of the escalator (10) by a cross bar (32) extending between the ends of the rail housings.

대표청구항 ▼

An apparatus for cleaning the steps of an escalator, the escalator having parallel rail housings for mounting rails in the escalator, comprising: a brush bar extending generally perpendicular to the direction of motion of the steps and positioned between the rail supports above a step; a first set o

An apparatus for cleaning the steps of an escalator, the escalator having parallel rail housings for mounting rails in the escalator, comprising: a brush bar extending generally perpendicular to the direction of motion of the steps and positioned between the rail supports above a step; a first set of relatively elongate bristles mounted on the brush bar for extending into the grooves in each of the steps for cleaning; a second set of relatively short length bristles mounted on the bursh bar for contacting the tread of the steps for cleaning, the first and second set of bristles being slanted from the vertical, the first set of bristles being slanted to assist in easing the bristles into the grooves; a cross bar for extending between the ends of the rail supports for contacting the ends of the rail supports; and at least one arm connected between the cross bar and the brush bar for positioning the brush bar above a step and fixing the brush bar relative to the rail housing so that motion of the steps of the escalator causes the sets of bristles to clean the steps as they pass underneath the cross bar.