TW200609438A - Sealing structure - Google Patents

Sealing structure

Info

Publication number
TW200609438A
TW200609438A TW094116715A TW94116715A TW200609438A TW 200609438 A TW200609438 A TW 200609438A TW 094116715 A TW094116715 A TW 094116715A TW 94116715 A TW94116715 A TW 94116715A TW 200609438 A TW200609438 A TW 200609438A
Authority
TW
Taiwan
Prior art keywords
needle bar
seal
members
outer peripheral
receiving members
Prior art date
Application number
TW094116715A
Other languages
Chinese (zh)
Other versions
TWI284715B (en
Inventor
Takashi Mizusaki
Masato Okabe
Original Assignee
Yamato Sewing Machine Mfg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamato Sewing Machine Mfg filed Critical Yamato Sewing Machine Mfg
Publication of TW200609438A publication Critical patent/TW200609438A/en
Application granted granted Critical
Publication of TWI284715B publication Critical patent/TWI284715B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B71/00—Lubricating or cooling devices
    • D05B71/02—Loop-taker lubricating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2205/00—Interface between the operator and the machine
    • D05D2205/32—Safety devices; Security devices

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Sealing Devices (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Of Bearings (AREA)

Abstract

To provide a seal structure capable of preventing a seal member from coming out of a guide member and enabling the replacement of the seal member. A needle bar 12 is guided by a tubular needle bar receiving members 29 and 30 and reciprocatingly and displaceably driven in the axial direction. Needle bar seal members 33 and 34 comprise outer peripheral base parts 40, oil seal parts 50, and dust seal parts 52, and are fitted to the needle bar receiving members 29 and 30 by the outer peripheral base part 40. A contact face 53 supporting the axial displacements of the needle bar receiving members 29 and 30 is formed on the outer peripheral base part 40. Thus, the outer peripheral base part 40 can be prevented from being axially displaced relative to the needle bar receiving members 29 and 30. As a result, even if the needle bar seal members 33 and 34 are fitted to a needle bar 12 reciprocatingly and displaceably driven, the needle bar seal members 33 and 34 can be securely prevented from coming out of the needle bar receiving members 29 and 30.
TW094116715A 2004-05-28 2005-05-23 Sealing structure TWI284715B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004159321A JP2005337441A (en) 2004-05-28 2004-05-28 Seal structure

Publications (2)

Publication Number Publication Date
TW200609438A true TW200609438A (en) 2006-03-16
TWI284715B TWI284715B (en) 2007-08-01

Family

ID=35491229

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094116715A TWI284715B (en) 2004-05-28 2005-05-23 Sealing structure

Country Status (4)

Country Link
JP (1) JP2005337441A (en)
KR (1) KR100956288B1 (en)
CN (1) CN100383420C (en)
TW (1) TWI284715B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6604070B2 (en) * 2015-07-24 2019-11-13 株式会社ジェイテクト SEALING DEVICE AND BEARING DEVICE PROVIDED WITH THE SAME

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195854A (en) * 1975-10-14 1980-04-01 Jacques Bertin Shaft seal assemblies
JPH023001U (en) * 1988-06-20 1990-01-10
JP3475611B2 (en) * 1995-10-27 2003-12-08 Ｎｏｋ株式会社 Sealing device
CN1086754C (en) * 1998-11-25 2002-06-26 长瑜企业股份有限公司 Sewing machine with coaxial in-time driven needle bar and upper circumferential sewing mechanism
JP2000167286A (en) * 1998-12-08 2000-06-20 Yamato Sewing Mach Co Ltd Sewing machine
CN2451736Y (en) * 2000-12-07 2001-10-03 丘凯 Pressure reducing elastic sealing ring
JP4581309B2 (en) * 2001-09-14 2010-11-17 Ｎｏｋ株式会社 Valve stem seal
JP2004068888A (en) * 2002-08-05 2004-03-04 Nok Corp Valve stem seal
JP2004105516A (en) * 2002-09-19 2004-04-08 Yamato Sewing Mach Co Ltd Oil leakage preventive device of sewing machine

Also Published As

Publication number Publication date
JP2005337441A (en) 2005-12-08
TWI284715B (en) 2007-08-01
KR20060049456A (en) 2006-05-19
CN100383420C (en) 2008-04-23
CN1702342A (en) 2005-11-30
KR100956288B1 (en) 2010-05-10

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees