# US 2009/0260764 A1 · Filling bell for filling a tubeless tire

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- Number: US 2009/0260764 A1
- Document ID: US20090260764A1
- Status: Published application
- Kind: A1
- Application number: 12/386,726
- Filed: 2009-04-22
- Published: 2009-10-22
- Earliest claimed: 2008-04-22
- Assignees: Schenck RoTec GmbH
- Inventors: Martin Rogalla; Werner Lehr
- Web page: https://patentgrep.com/patent/US20090260764A1

## CPC

- B60C 25/145: {for locating provisionally the beads of tubeless tyres against the sealing surfaces of the rims, e.g. air filling bell}
- B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES

## Abstract

In a filling bell (1) for filling a tubeless tire (30) arranged on a wheel rim with a pressurized gas, comprising an annular sealing face (3) which can be pressed onto a side wall (31) of the tire and a central opening (6), into which the wheel rim may penetrate, it is provided for the sealing face (3) to be formed by an annular flange (2) which surrounds the opening (6) and comprises a plurality of wedge-shaped segments (4), of which the width increases away from the opening (6) and which are displaceable relative to one another and substantially radially relative to the opening (6).

## Claims

### Claim 1

Filling bell for filling a tubeless tire arranged on a wheel rim with a pressurized gas, comprising an annular sealing face which can be pressed onto a side wall of the tire and a central opening, into which the wheel rim can penetrate, wherein the sealing face is formed by an annular flange which surrounds the opening and comprises a plurality of wedge-shaped segments having divergent edges, the width of said segments increasing away from the central opening, and said segments being displaceable relative to one another and substantially radially relative to the opening.

### Claim 2 (depends on 1)

Filling bell according to claim 1, wherein the segments are positively and longitudinally displaceably connected to one another at their divergent edges.

### Claim 3 (depends on 1)

Filling bell according to claim 1, wherein a sealing element is arranged between each of the divergent edges of adjacent segments.

### Claim 4 (depends on 3)

Filling bell according to claim 3, wherein the sealing element is a profiled strip made of a plastics material which fills the space between the segments and forms a sliding guide for moving the segments.

### Claim 5 (depends on 1)

Filling bell according to claim 1, wherein the segments comprise holes for supplying a lubricant.

### Claim 6 (depends on 1)

Filling bell according to claim 1, wherein on their side remote from the sealing face the segments have a journal, by which means they are radially displaceably and rotatably guided and held on a carrier plate.

### Claim 7 (depends on 1)

Filling bell according to claim 1 wherein the segments are collectively displaceable by an actuation element.

### Claim 8 (depends on 7)

Filling bell according to claim 7, wherein the actuation element is a disc cam which is rotatably mounted on the filling bell and has effective surfaces which act on the journal and extend radially and in the circumferential direction.

### Claim 9 (depends on 7)

Filling bell according to claim 7, wherein a journal has a cylindrical shaft and at its free end a cylindrical head with a larger diameter, and wherein the shaft of the journal penetrates through a radial slot in the carrier plate and the head lies on the rear side of the carrier plate remote from the segment and engages in a driving recess of the actuation element.