Device for driving take-up unit of circular knitting machine

Patent 5157949 Issued on October 27, 1992. Estimated Expiration Date:

January 18, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3695062

3850012

Driving apparatus in take up unit of circular knitting machine Patent #: 4671083
Issued on: 06/09/1987
Inventor: Sawazaki , et al.

Inventors

Assignee

Precision Fukuhara Works, Ltd.

Application

No. 643118 filed on 01/18/1991

US Classes:

66/151, Winding, from rotary needle bank66/153From rotary needle bank

Examiners

Primary: Schroeder, Werner H.
Assistant: Calvert, John J.

Attorney, Agent or Firm

Bell, Seltzer, Park & Gibson

Foreign Patent References

2411911 FR 12/13/1977
0237493 IT 09/13/1987

International Class

D04B 015/88

Foreign Application Priority Data

1990-02-01 JP

Abstract

A fabric take-up unit (5) is supported beneath the needle cylinder (4a) to rotate synchronously therewith and knitted fabric delivery rolls (11, 12, 13) are supported on the fabric take-up unit (5). The fabric delivery rolls (11, 12, 13) are normally driven in response to rotation of the take-up unit (5). In contrast to this normal drive, the knitted fabric delivery rolls (11, 12, 13) are driven by a planetary gear system including a sun gear (17) supported for rotation on the machine frame, a planet gear (18) meshing with the sun gear (17) and being supported on the take-up unit (5). The planet gear (18) is drivingly connected to the fabric delivery rolls (11, 12, 13). A drive motor (34) is fixed on the machine frame and is drivingly connected to the sun gear (17), and a control unit (50) is provided for controlling the speed of rotation of the drive motor (34) and the sun gear (17) so that the quantity of the knitted fabric taken up by the knitted fabric delivery rolls (11, 12, 13) is selectively varied by the speed of rotation of the drive motor (34) and the sun gear (17).