# US 2014/0360231 A1 · Circular knitting machine with expander

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- Number: US 2014/0360231 A1
- Document ID: US20140360231A1
- Status: Published application
- Kind: A1
- Application number: 14/287,450
- Filed: 2014-05-27
- Published: 2014-12-11
- Earliest claimed: 2013-06-07
- Assignees: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH
- Applicants: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH
- Inventors: Stefan Seeger
- Web page: https://patentgrep.com/patent/US20140360231A1

## CPC

- D04B 15/88: Take-up or draw-off devices for knitting products
- D04B: KNITTING

## Abstract

A circular knitting machine has a circular knitting unit fitted with needles and an expander arranged under the circular knitting unit for tubular knit formed by the circular knitting unit. The expander is rotatably mounted on a central rod arranged coaxially to a knitting machine axis. A pivoting bearing is arranged on the central rod to allow limited swivel movements of the expander relative to the central rod.

## Claims

### Claim 1

A circular knitting machine, comprising:
a circular knitting unit fitted with needles configured to form a tubular knit; and
an expander arranged under the circular knitting unit for the tubular knit, the expander rotatably mounted on a central rod arranged coaxially to a knitting machine central axis;
wherein a pivoting bearing is arranged on the central rod to allow limited swivel movements of the expander relative to the central rod.

### Claim 2 (depends on 1)

The circular knitting machine according to claim 1, wherein the pivoting bearing is a ball bearing.

### Claim 3 (depends on 1)

The circular knitting machine according to claim 1, wherein the pivoting bearing is an elastic pivoting bearing.

### Claim 4 (depends on 1)

The circular knitting machine according to claim 1, wherein the expander is rotatably mounted on the central rod by the pivoting bearing.

### Claim 5 (depends on 1)

The circular knitting machine according to claim 1, wherein the central rod (20) is divided into an upper and a lower section and the pivoting bearing is arranged between the upper and the lower section.

### Claim 6 (depends on 5)

The circular knitting machine according to claim 5, wherein the pivoting bearing includes a coupling arrangement between the central rod upper and lower sections.

### Claim 7 (depends on 6)

The circular knitting machine according to claim 6, wherein the coupling arrangement has a holding element and a fastening element that are interconnected by spacer screws.

### Claim 8 (depends on 7)

The circular knitting machine according to claim 7, wherein the pivoting bearing is arranged on the fastening element.