Title:
THREAD SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/145415
Kind Code:
A1
Abstract:
Disclosed is a thread supply system that, with a simple configuration, enables the tension of thread in a thread supply pathway to be maintained in a proper range and the thread to be supplied from a bobbin without slack. The tension of an elastic body (30) that pulls into a retention section (10) a pulling piece (20) snagged on the thread (3Y) spooled out from a bobbin (3) is measured by a tension measurement means (40). Then, by means of a derivation means (50), using the pre-determined correlation between the tension of the elastic body (30) and the position (a physical quantity for controlling the amount of supply of thread (3Y) from the bobbin (3)) of the pulling piece (20) in the direction of pulling, said position is determined from the actual measured tension. On the basis of the determined position, the amount of supply of thread (3Y) from the bobbin (3) by a thread supply device (1) is controlled by a control means (1C).
Inventors:
NAKAHATA SADAMU (JP)
Application Number:
PCT/JP2011/059300
Publication Date:
November 24, 2011
Filing Date:
April 14, 2011
Export Citation:
Assignee:
SHIMA SEIKI MFG (JP)
NAKAHATA SADAMU (JP)
NAKAHATA SADAMU (JP)
International Classes:
B65H59/38
Foreign References:
| JPH04140276A | 1992-05-14 | |||
| JPH05294561A | 1993-11-09 | |||
| JP2006299426A | 2006-11-02 |
Other References:
See also references of EP 2573026A4
Attorney, Agent or Firm:
YAMANO, HIROSHI (JP)
Hiroshi Yamano (JP)
Hiroshi Yamano (JP)
Download PDF:
Claims: