Relatively sliding arrangement for use in sewing machine

Details Relatively sliding arrangement for use in sewing machine Relatively sliding arrangement for use in sewing machine

1990-04-12

1992-02-18

Schroeder, Werner H.

Sewing

Elements

Lubricating

D05B 7102, D05B 7100

Patent

active

050884271

ABSTRACT:
An arrangement of two elements of a sewing machine which are in frictional, or sliding, contact during operation. At least one of elements is formed of a ceramic material and a minute amount of a lubrication oil is applied to the frictional, or siding, portion defining the surfaces in contact. Such a combination of elements is found in the upper looper mechanism, the shuttle body assembly, the needle bar mechanism and the fabric piece feeding mechanism in a sewing machine that are subject to high speed, high load friction or sliding conditions.

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patent: 4871266 (1989-10-01), Oda
patent: 4902576 (1990-02-01), Shimura et al.

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