# US 5,704,091 A · Wheel for a vacuum cleaner nozzle or for a vacuum cleaner

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- Number: US 5,704,091 A
- Document ID: US5704091A
- Status: Granted
- Kind: A
- Application number: 08/554,435
- Filed: 1995-11-06
- Granted: 1998-01-06
- Earliest claimed: 1994-12-12
- Assignees: Aktiebolaget Electrolux
- Inventors: Lars Gunnar Kilstrom
- Web page: https://patentgrep.com/patent/US5704091A

## CPC

- B60B 33/0028: {Construction of wheels; methods of assembling on axle}
- A47L 9/009: {Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles}
- B60B 5/02: made of synthetic material
- B60B 33/0039: {Single wheels}
- B60B 33/00: Castors in general {; Anti-clogging castors} (castors for large containers B65D90/18)
- B60B 33/0049: {the rolling axle being horizontal}
- B60B 2200/49: Domestic appliances, e.g. vacuum cleaners
- B60B 2310/3025: by thermal welding, e.g. friction, induction or ultrasonic welding
- B60B 2310/305: by screwing
- B60B 2310/318: by adhesive bonding, e.g. glueing
- B60B 2360/32: Plastic compositions
- B60B 2360/322: Comprising polypropylene
- B60B 2360/324: Comprising polyurethane
- B60B 2360/344: With woven material
- B60B 2900/212: Damage
- B60B 2900/551: Handling of obstacles or difficult terrains
- Y10T 152/10378: Casing enclosed core
- B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A wheel for a vacuum cleaner nozzle or for a vacuum cleaner having a central part (10a, 10b) of comparatively hard material to which a tread is secured. The tread (14) is formed from a soft material having a low friction coefficient, such as a felt material.

## Claims

### Claim 1

A wheel for a vacuum cleaner nozzle or for a vacuum cleaner, said wheel (10) comprising a central part (10a, 10b) of relatively hard material and a tread of relatively soft fiber material with a low friction coefficient, wherein the central part supports said tread (14) of fiber material and said fiber material is selected from the group of natural fiber material and synthetic fiber material.

### Claim 2 (depends on 1)

A wheel according to claim 1 wherein said fiber material is felted.

### Claim 3 (depends on 1)

A wheel according to claim 1, wherein the central part includes first and second parts (10a, 10b) which are connected to each other and between which the tread (14) is clamped.

### Claim 4 (depends on 3)

A wheel according to claim 3, wherein the first and second parts include hubs which are secured to one another.

### Claim 5 (depends on 4)

A wheel according to claim 4, wherein the first and second parts include flanges that extend radially from the hubs, an annular groove being defined by a space between said flanges and receiving said tread.

### Claim 6 (depends on 5)

A wheel according to claim 5, wherein said fiber material is felted.

### Claim 7 (depends on 5)

A wheel according to claim 5, wherein said fiber material is woven.

### Claim 8 (depends on 5)

A wheel according to claim 5, wherein said fiber material is held together by bonding agents.

### Claim 9 (depends on 1)

A wheel according to claim 1, wherein said fiber material is a cloth.

### Claim 10 (depends on 1)

A wheel according to claim 1, wherein said fiber material is woven.

### Claim 11 (depends on 1)

A wheel according to claim 1, wherein said fiber material is held together by bonding agents.