# US 2014/0189961 A1 · Roller washing machine and the washing method thereof

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- Number: US 2014/0189961 A1
- Document ID: US20140189961A1
- Status: Published application
- Kind: A1
- Application number: 14/239,913
- Filed: 2011-10-28
- Published: 2014-07-10
- Earliest claimed: 2011-08-22
- Assignees: Haier Group Technique R & D Center; Haier Group Corporation
- Inventors: Zhengbao He; Chunfeng Lao
- Web page: https://patentgrep.com/patent/US20140189961A1

## CPC

- D06F 35/00: Washing machines, apparatus, or methods not otherwise provided for
- D06F 37/04: adapted for rotation or oscillation about a horizontal or inclined axis
- D06F 37/26: Casings; Tubs
- D06F 37/263: {assembled from at least two elements connected to each other; Connecting or sealing means therefor}
- D06F 23/02: and rotating or oscillating about a horizontal axis
- D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES

## Abstract

A roller washing machine and the washing method thereof, comprises four layers of mutually sleeved washing tubs and a water containing tub, wherein, a first tub, a second tub, a third tub and a fourth tub are arranged from inside to outside sequentially and particles are stored in a space between the second tub and the third tub; a plurality of first openings used for dewatering are arranged on the walls of the second tub and of the third tub, and a second opening allowing the particles to be put in and recycled is arranged on the wall of the second tub. The roller washing machine integrates such functions as clothes washing, separation of clothes and the particles, recycling and storage of the particles, dewatering of the particles, thus realizing 100% put-in and recycling of the particles, simplifying washing procedures and shortening washing time.

## Claims

### Claim 1

A roller washing machine, comprising four layers of mutually sleeved washing tubs and water containing tub, wherein,
a first tub, a second tub, a third tub and a fourth tub are arranged from inside to outside sequentially,
particles are stored in a space between the second tub and the third tub,
a plurality of first openings for dewatering are arranged on the walls of the second tub and of the third tub, and
a second opening for feeding and recycling the particles is arranged on the wall of the second tub.

### Claim 2 (depends on 1)

The roller washing machine according to claim 1, wherein, the first tub is a net structure of a third opening formed by intersecting warps and wefts for allowing the particles to pass through.

### Claim 3 (depends on 1)

The roller washing machine according to claim 1, wherein, a diameter of the first opening is 1-1.5 mm.

### Claim 4 (depends on 1)

The roller washing machine according to claim 1, wherein, the second opening is arranged above the shaft of the second tub and communicated with the space for storing the particles.

### Claim 5 (depends on 4)

The roller washing machine according to claim 4, wherein, the second opening is arranged at the top of the vertical center line of the second tub.

### Claim 6 (depends on 4)

The roller washing machine according to claim 4, wherein, the second opening is a groove-shaped opening.

### Claim 7 (depends on 1)

The roller washing machine according to claim 1, wherein, at least one first scraper blade projecting outwards is arranged on the outer wall of the first tub.

### Claim 8 (depends on 1)

The roller washing machine according to claim 1, wherein, at least one second scraper blade projecting inwards is arranged on the inner wall of the third tub.

### Claim 9 (depends on 1)

The roller washing machine according to claim 1, wherein, the axial lines of the first tub, the second tub, the third tub and the fourth tub are identical.

### Claim 10 (depends on 1)

The roller washing machine according to claim 1, wherein, the first tub and the third tub are respectively driven to rotate by a driving device, and the second tub and the fourth tub are fixed.

### Claim 11

A washing method of a roller washing machine having a first tub, a second tub, a third tub and a fourth tub arranged from inside to outside sequentially, wherein the method comprises the following steps:
Step I: adding a proper amount of water, washing agent and clothes to be washed into the first tub of the washing machine, rotating the third tub and putting the particles into the second tub;
Step II: driving the first tub to rotate for washing the clothes; and
Step III: after washing, driving the first tub to rotate at a high speed to allow the particles to enter the a storing space between the second tub and the third tub for dewatering of the clothes and separating and recycling of the particles.

### Claim 12 (depends on 11)

The washing method according to claim 11, wherein, after the washing process, it also comprises a rinsing step of clothes, adding clean water again for rinsing the clothes and then dewatering again.

### Claim 13 (depends on 11)

The washing method according to claim 11, wherein, after the washing process, it also comprises a dewatering step of the particles;
driving the third tub to rotate at a high speed for dewatering of the particles.

### Claim 14 (depends on 11)

The washing method according to claim 11, wherein, the third tub rotates at a speed of 100-1000 rpm during the dewatering process of the particles.

### Claim 15 (depends on 11)

The washing method according to claim 11, wherein, the third tub rotates at a speed of 100-200 rpm during the process of feeding the particles in step I.

### Claim 16 (depends on 11)

The washing method according to claim 11, wherein, the first tub rotates at a speed of 150-1000 rpm during the process of dewatering of clothes and separating and recycling of the particles in step Ill.

### Claim 17 (depends on 11)

The washing method according to claim 11, wherein, in step II, the third tub stops rotating during washing and the particles only circulate between the first tub and the second tub.