JPS57208361A - Boots - Google Patents

Boots

Info

Publication number
JPS57208361A
JPS57208361A JP56092872A JP9287281A JPS57208361A JP S57208361 A JPS57208361 A JP S57208361A JP 56092872 A JP56092872 A JP 56092872A JP 9287281 A JP9287281 A JP 9287281A JP S57208361 A JPS57208361 A JP S57208361A
Authority
JP
Japan
Prior art keywords
boots
opening
pressure
air
exhaust valve
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP56092872A
Other languages
Japanese (ja)
Inventor
Fumio Hoshikawa
Zenichi Fukumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Original Assignee
NTN Toyo Bearing Co Ltd
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 NTN Toyo Bearing Co Ltd filed Critical NTN Toyo Bearing Co Ltd
Priority to JP56092872A priority Critical patent/JPS57208361A/en
Publication of JPS57208361A publication Critical patent/JPS57208361A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
    • 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
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • F16J3/046—Lubrication or venting arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/703—Bellows

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

PURPOSE:To extend and improve the service life remarkably by a method wherein an exhaust valve, opening when the pressure in the boots is positive, and a suction valve, opening when the pressure therein is negative, are provided at the attaching section of the boots to prevent the expansion or leakage of air in the boots. CONSTITUTION:A two-way valve system, consisting of the exhaust valve 16 and the suction valve 17, is provided at a fitting surface between the boots 8 and a shaft 2 through a boots band 7. The exhaust valve 16 has a lip section 16b, provided with an opening 16a free of opening and closing at the tip end thereof, is formed into an oval type conical shape, is projected toward atmosphere and is opened when the air pressure in the boots 8 is higher than the atmospheric pressure. The suction valve 17 has the lip section 17b, which is provided with the opening 17a free of opening and closing at the tip end thereof, is formed into the oval type conical shape, is projected toward an air chamer 17c communicated with the interior of the boots 8 through a venting groove 17d and is opened when the pressure in the boots 8 has become negative.
JP56092872A 1981-06-15 1981-06-15 Boots Pending JPS57208361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56092872A JPS57208361A (en) 1981-06-15 1981-06-15 Boots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56092872A JPS57208361A (en) 1981-06-15 1981-06-15 Boots

Publications (1)

Publication Number Publication Date
JPS57208361A true JPS57208361A (en) 1982-12-21

Family

ID=14066520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56092872A Pending JPS57208361A (en) 1981-06-15 1981-06-15 Boots

Country Status (1)

Country Link
JP (1) JPS57208361A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545545A2 (en) * 1991-12-03 1993-06-09 Draftex Industries Limited Protective bellows
FR2926619A1 (en) * 2008-01-21 2009-07-24 Trelleborg Prodyn Soc Par Acti Flexible bellows for protecting e.g. steering gear-box, of motor vehicle, has pipe projected from peripheral delimiting wall of bodies and extended towards interior of bellows, where pipe and bodies are formed as single piece
JP2013124773A (en) * 2011-12-13 2013-06-24 Irie Koken Kk Bellows protection structure of gate valve
US10780756B1 (en) * 2019-04-23 2020-09-22 RB Distribution, Inc. Purging dust boot

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5653975A (en) * 1979-10-04 1981-05-13 Yamaha Motor Co Ltd Coating device for front fork

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5653975A (en) * 1979-10-04 1981-05-13 Yamaha Motor Co Ltd Coating device for front fork

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545545A2 (en) * 1991-12-03 1993-06-09 Draftex Industries Limited Protective bellows
EP0545545A3 (en) * 1991-12-03 1994-01-05 Draftex Ind Ltd
FR2926619A1 (en) * 2008-01-21 2009-07-24 Trelleborg Prodyn Soc Par Acti Flexible bellows for protecting e.g. steering gear-box, of motor vehicle, has pipe projected from peripheral delimiting wall of bodies and extended towards interior of bellows, where pipe and bodies are formed as single piece
JP2013124773A (en) * 2011-12-13 2013-06-24 Irie Koken Kk Bellows protection structure of gate valve
US10780756B1 (en) * 2019-04-23 2020-09-22 RB Distribution, Inc. Purging dust boot
US11524540B2 (en) 2019-04-23 2022-12-13 RB Distribution, Inc. Purging dust boot

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