Title:
DEVICE FOR ROTATING THE SHUTTLE HOOK OF SEWING MACHINE
Document Type and Number:
Japanese Patent JP3363263
Kind Code:
B2
Abstract:
PURPOSE: To improve the abrasion resistance and to reduce the frictional resistance in the contact between the outer and inner shuttle hooks and the contact between the inner shuttle hook and the bobbin case.
CONSTITUTION: The abrasion resistance is improved and the frictional resistance is reduced by forming the coating film made of the chromium nitride on the surface which comes contact with at least one of the outer shuttle hook, inner shuttle hook 1 to be house in it, and bobbin case 3 to be housed within.
Inventors:
Koji Mizusawa
Application Number:
JP15341794A
Publication Date:
January 08, 2003
Filing Date:
July 05, 1994
Export Citation:
Assignee:
Sabun Industry Co., Ltd.
International Classes:
D05B57/14; D05B57/26; (IPC1-7): D05B57/14; D05B57/26
Domestic Patent References:
| JP5459450A | ||||
| JP724280U | ||||
| JP6315969U | ||||
| JP5626083U |
Attorney, Agent or Firm:
Akira Kashiwagi (1 person outside)