Front caster assembly for canister vacuum cleaner

Details Front caster assembly for canister vacuum cleaner Front caster assembly for canister vacuum cleaner

1988-10-24

1990-08-07

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

153271, 16 23, A47L 900

Patent

active

049456032

ABSTRACT:
A front caster assembly for a canister-type vacuum cleaner includes a swivel body member mounted for pivotal movement to the underside of the vacuum cleaner casing. A caster wheel is mounted on the underside of the swivel body member for rolling contact with the floor. A pair of small idler wheels are snap-fit onto the upper surface of the swivel body member, each having its rotational axis offset approximately 45 degrees from the line of rotation of the caster wheel, with the rotational axes intersecting at the pivot axis of the swivel body member. The idler wheels contact the underside of the vacuum cleaner casing to act as low friction bearings for pivoting movement of the swivel body member. The swivel body member is formed with an elongated flat portion removed from its pivot axis which serves as part of the cord wrap structure for the vacuum cleaner.

REFERENCES:
patent: 355020 (1886-12-01), Lamb
patent: 2810925 (1957-10-01), Meyerhoefer
patent: 3003179 (1961-10-01), Descarries
patent: 3401952 (1968-09-01), Johanson et al.
patent: 4509227 (1985-04-01), Keane
patent: 4658465 (1987-04-01), Keane et al.

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