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Patent Searching and Data


Title:
PART OF SEWING MACHINE
Document Type and Number:
Japanese Patent JPH07665
Kind Code:
A
Abstract:

PURPOSE: To reduce wear and extend life by forming a part of a sewing, machine part such as a rotating hook, a rotating hook bobbin case holder, and a looper of an injection molding of a mixture of the powder of a material having high hardness and wear resistance with a synthetic resin, and the remainder of the synthetic resin.

CONSTITUTION: A rotating hook bobbin case holder 1 to be installed to a rotating hook, which is used in a vertical fullrotating hook, has a cylinder part 7, a truck 8 formed on the outer circumference, a flange part 10 having a rotating hook bobbin case holder position bracket recessed part 9 formed on the opened-side end part of the cylinder part 7, and a bottom part 11 formed on the other end part of the cylinder part 7. The truck 8 of the rotating hook bobbin case holder 1 is fitted to a truck groove formed on the outer circumferential surface of the rotating hook. A part 17 on the side having a needle location hole 16 of the rotating hook bobbin case holder 1 is divided from the other part 19 by a horizontal cut surface 18 parallel to the axial line of the rotating hook bobbin case holder 1. The part 17 is formed by mixing one or a plurality selected from metal powders and ceramic powders with a synthetic resin followed by injection molding, and the other part 19 is formed of a synthetic resin.


Inventors:
HIROSE TOKUZO
Application Number:
JP1993000149537
Publication Date:
January 06, 1995
Filing Date:
June 21, 1993
Export Citation:
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Assignee:
HIROSE MFG CO LTD
International Classes:
D05B57/00; D05B57/14; D05B57/26; (IPC1-7): D05B57/14; D05B57/00; D05B57/26
Domestic Patent References:
JPS63262180A1988-10-28
JPS585675B21983-02-01
JPH06261989A1994-09-20
JPH0359068A1991-03-14
JPH03500328A1991-01-24
JPH03149088A1991-06-25
Attorney, Agent or Firm:
西教 圭一郎