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Patent Searching and Data


Title:
SEWING MACHINE LUBRICATED WITH WATER TYPE LUBRICANT
Document Type and Number:
Japanese Patent JPH02277492
Kind Code:
A
Abstract:

PURPOSE: To prevent such troubles as cut, abrasion, seizure, etc., of sliding components of a sewing machine by a method wherein sliding components of a sewing mechanism are formed of hard anti-abrasive ceramics and water type liquid is supplied as a lubricant.

CONSTITUTION: Sliding components of a sewing machine such as a bearing 9a of a thread take up lever link 9, a thread take up lever 8, an upper spindle metal 13, etc., into which a needle bar metal 2, a crank rod 6, a square spacer 4, a supporting rod 10 are inserted are formed of hard anti-abrasive ceramics, and water type liquid is supplied as a lubricant. The component of said ceramics is composed of at least one among Al2O3, ZrO2, Cr2O3, SiC, Si3N4. As a result, such troubles as cut, abrasion, seizure of the sliding components of the sewing machine are prevented, and moreover, fouling of thread and fabric can be avoided.


Inventors:
TAKAGI ATSUHIRO
ISONO JUN
Application Number:
JP1989000098379
Publication Date:
November 14, 1990
Filing Date:
April 18, 1989
Export Citation:
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Assignee:
BROTHER IND LTD
International Classes:
F16C33/10; D05B71/00; (IPC1-7): D05B71/00; F16C33/10