Driving apparatus in take up unit of circular knitting machine

Patent 4671083 Issued on June 9, 1987. Estimated Expiration Date:

November 20, 2005. 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

1435176

2649811

2760362

3222889

Safety device for circular knitting machines Patent #: 4565076
Issued on: 01/21/1986
Inventor: Tsuchiya

Inventors

Assignee

Precision Fukuhara Works, Ltd.

Application

No. 06/799972 filed on 11/20/1985

US Classes:

66/151, Winding, from rotary needle bank474/49, Structure for variably adjusting radius of rim section66/153From rotary needle bank

Examiners

Primary: Reynolds, Wm. Carter

Attorney, Agent or Firm

Bell, Seltzer, Park & Gibson

International Classes

D04B 15/88 (20060101)
D04B 15/00 (20060101)

Foreign Application Priority Data

1985-01-25 JP

Abstract

The present drive for the fabric take up mechanism includes a pair of drive pulleys and a drive belt interposed in the power transmission drive and between the revolving needle cylinder and the fabric delivery rolls and the fabric take up roll. At least one of the drive pulleys is of the variable or adjustable diameter type including radially adjustable drive segments supported between opposite side pulley flanges. Radial grooves are provided in one pulley flange and spiral grooves are provided in the other pulley flange and operate in response to rotation of one flange relative to the other flange to adjust the diameter of the peripheral drive surface of the pulley. The variable diameter drive pulley is adjustable so that the speed of rotation of the delivery rolls and the fabric take up roll can be coordinated with the speed of production of the knit fabric to maintain substantially uniform tension in the knit fabric.