US 6,671,917 B2 · Wheel cleaning apparatus

Abstract

A wheel cleaning apparatus for a wheelchair comprising a roller-assembly frame 50L which includes a first receiving roller 21L and a second receiving roller 22L which can do seesaw movement with respect to a rocking central axis shaft tube 53, and a restoring coil spring 68 for energizing the roller-assembly frame in a direction to relatively spring up the second receiving roller from the first receiving roller. When the front wheels T1 are to be separated from the apparatus, the second receiving roller 22L is pushed down and the first receiving roller 21L is sprung up, resulting in that it is easy for the front wheels T1 to climb over the step. Whereby the rear wheels are prevented from slipping off during cleaning, and it is easy for the front wheels to escape from the gap between the receiving rollers so that the load on the helper can be reduced.

Claims32

Dependent claims

A wheel cleaning apparatus for a device having wheels comprising:

a roller-assembly frame including first and second receiving rollers which can rotate while receiving at least one of said wheels, said first and second receiving rollers being almost parallel and arranged facing each other;
roller driving means driving the rotation of at least one of said first and second receiving rollers;
cleaning means cleaning said wheels which are driven to rotate on said first and second receiving rollers;
a rocking and supporting mechanism supporting said roller-assembly frame in such a way that said roller assembly frame can rock in a positive and negative directions with respect to a central axis of the rocking;
and
energizing means energizing said roller-assembly frame in a direction to spring up said second receiving roller from said first receiving roller, wherein said energizing means is an elastic means.

3 more elements

A wheel cleaning apparatus for a device having wheels comprising:

a right roller-assembly frame and a left roller-assembly frame each including first and second receiving rollers, said first and second receiving rollers being able to rotate while receiving at least one wheel of said wheels, said first and second receiving rollers being almost parallel and arranged facing each other;
roller driving means synchronously driving the rotation of at least one of said first and second receiving rollers in one of said roller-assembly frames and driving at least one of said first and second receiving rollers in the other one of said roller-assembly frames to each other;
cleaning means cleaning said at least one wheel driven to rotate on said first and second receiving rollers in each of said roller-assembly frames;
a rocking and supporting mechanism supporting each of said roller-assembly frames in a positive and negative directions with respect to a central axis of the rocking;
and
energizing means energizing each of said roller-assembly frames in such a way that, in each of said roller-assembly frames, said second receiving roller is energized in a direction to spring up said second receiving roller from said first receiving roller, wherein said energizing means is an elastic means.

3 more elements

Dependencies are inferred from the claim text.

Wheel cleaning apparatus

Life of this patent

Wheel cleaning apparatus

Life of this patent

Abstract

Claims32