US20050020366A1 - Bellows for consant-velocity joints - Google Patents

Bellows for consant-velocity joints Download PDF

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Publication number
US20050020366A1
US20050020366A1 US10/276,208 US27620804A US2005020366A1 US 20050020366 A1 US20050020366 A1 US 20050020366A1 US 27620804 A US27620804 A US 27620804A US 2005020366 A1 US2005020366 A1 US 2005020366A1
Authority
US
United States
Prior art keywords
annular
collar
fold
pointing towards
group
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.)
Abandoned
Application number
US10/276,208
Other languages
English (en)
Inventor
Thorsten Scholtz
Thomas Schmidt
Markus Deisinger
Joachim Wette
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.)
GKN Driveline International GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to GKN AUTOMOTIVE GMBH reassignment GKN AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHMIDT, THOMAS, WETTE, JOACHIM, DEISINGER, MARKUS, SCHOLTZ, THORSTEN
Publication of US20050020366A1 publication Critical patent/US20050020366A1/en
Abandoned legal-status Critical Current

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • 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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
    • Y10S464/902—Particular material
    • Y10S464/903—Nonmetal

Definitions

  • the invention relates to a convoluted boot for sealing an annular gap between two parts which are connected to one another in a rotationally fast way, which can be articulated relative to one another and which are axially displaceable relative to one another, especially of a constant velocity plunging joint, consisting of a low-strain hard polymer material, having a first larger collar to be secured to a first component, a second smaller collar to be secured to a second component and a plurality of annular fold units which extend between the first collar and the second collar and which, in the form of outer folds consisting of two annular flanks, form a fold peak between two fold valleys.
  • the deformation of the convoluted boot when articulation and changes in axial length occur is allocated to said two groups in such a way that, in the first group consisting of folds of a decreasing size, deformation largely takes place in the form of articulation, whereas the second group consisting of at least one fold with a small diameter largely accommodates the change in axial length by being extended.
  • Convoluted boots with two different groups of folds are known from DE 33 09 386 C1, DE 43 23 686 C2, DE 196 01 096 A1 and DE 198 06 173 C1 for example. However, in these cases, between the two groups of folds, there exists a region which is in constant contact with the inserted shaft.
  • the first group of folds can comprise up to five annular folds and the second group of folds can comprise up to eight annular folds.
  • the number of folds depends on the respective requirement profile. It is obvious that with an increased number of annular folds, the need for a longer boot length also increases, but the angle work to be carried out by the individual folds generally decreases during articulation. However, this does not affect the possibility of varying the shape of the individual folds within certain ranges, i.e. that it is possible to provide more pointed and wider folds, but in principle, the folds of the first group are wider (have a larger volume) and the folds of the second group are more pointed (narrower).
  • the two annular flanks of each of the annular folds of the first group form opposed angles with a radial plane, wherein a smaller angle ⁇ is formed by the annular flank pointing towards the second collar and wherein a larger angle ⁇ with ⁇ ( ⁇ +25°) is formed by the annular flank pointing towards the first collar.
  • the annular flanks of each of the annular folds of the second group form opposed angles with a radial plane, wherein the annular flank pointing towards the second collar forms an angle ⁇ and wherein the annular flank pointing towards the first collar forms an angle ⁇ which is defined by ( ⁇ +5°)
  • the reference for the angle values has to be the conical face between the outer line of a fold valley and the outer line of a fold peak and that, if viewed in a longitudinal section, it has to be the straight line between the smallest outer radius of a fold valley and the greatest outer radius of a fold peak.
  • annular flanks of the transition fold form opposed angles with a radial plane, wherein the annular flank pointing towards the second collar forms an angle ⁇ and that the annular flank pointing towards the first collar forms an angle ⁇ which is defined by ( ⁇ +25°) ⁇ ( ⁇ +5°).
  • Said transition fold is thus similar to the annular folds of the first group in that the diameter of the fold valleys decreases towards the second collar; however, as far as the angle configuration of the annular flanks is concerned, said transition fold is similar to the annular folds of the second group.
  • the purpose is to ensure that even at larger angular movements of the convoluted boot, there is preferably no friction contact between the fold valleys and the inserted shaft.
  • a preferred material for the convoluted boot is a thermoplastic elastomer (TPE); in particular, there are proposed materials based on polyurethane (TPU), on polyester (TPEE), in particular a polyether ester or a polyester ester, materials based on polyamide (TPA) or on polyolefin, in particular polypropylene or polyethylene.
  • TPE thermoplastic elastomer
  • FIG. 1 shows an inventive convoluted boot in half a longitudinal section, with different individual characteristics having been drawn in.
  • FIG. 2 shows an illustration similar to that of FIG. 1 in which the dimensions specified by the invention are given.
  • FIG. 3 shows two annular folds in half a longitudinal section, giving the values of the angles.
  • FIG. 1 shows a convoluted boot comprising a first collar 11 with a larger diameter with an attaching region 11 ′, a second collar 12 with a smaller diameter with an attaching region 12 ′, as well as a total of seven complete annular folds.
  • a first group A comprises three annular folds A 1 , A 2 , A 3 , with the diameters of their fold valleys and fold peaks decreasing from fold to fold from the first collar 11 to the second collar 12 .
  • a second group B of two complete folds B 1 and B 2 and with a total of three fold peaks comprises fold valleys and fold peaks which comprise identical diameters.
  • a third transition fold C is positioned between the first group A and the second group B and comprises fold valleys with decreasing diameters from the first collar 11 to the second collar 12 .
  • fold A 1 it is indicated that a complete annular fold is regarded as an outer fold with a fold peak 21 between two fold valleys 22 .
  • D 1 refers to the outer diameter of the first fold A 1 of the first group A and D 2 refers to the outer diameter of the second collar 12 .
  • the ratio of the two diameters is ⁇ 2.5.
  • FIG. 3 shows an individual fold, and in FIG. 3 a , one fold, which can be fold A 1 for example, comprises a first annular flank 31 and a second annular flank 32 .
  • a radial plane R is positioned normally on the longitudinal boot axis L. The opening angle of the first annular flank 31 relative to the radial plane R has been given the reference symbol a and the opening angle of the second annular flank 32 relative to the radial plane R has been given the reference symbol ⁇ .
  • FIG. 3 b shows that at an annular flank 31 with a convex outer face or, optionally, with a concave outer face, the arm of the opening angle ⁇ deviating from the radial plane is formed by a straight line between the greatest circumferential line 41 of the fold peak and the smallest circumferential line 42 of the adjoining fold valley.
  • FIG. 3 a shows that the arm of, the opening angle ⁇ deviating from the radial plane is formed by a strictly conical surface of the annular flank ( 32 ) itself.
US10/276,208 2001-09-11 2001-09-26 Bellows for consant-velocity joints Abandoned US20050020366A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10144576 2001-09-11
DE10144576.8 2001-09-11
PCT/EP2001/011111 WO2003023261A1 (fr) 2001-09-11 2001-09-26 Soufflet pour joints homocinetiques

Publications (1)

Publication Number Publication Date
US20050020366A1 true US20050020366A1 (en) 2005-01-27

Family

ID=7698537

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/276,208 Abandoned US20050020366A1 (en) 2001-09-11 2001-09-26 Bellows for consant-velocity joints
US10/489,286 Expired - Lifetime US7235018B2 (en) 2001-09-11 2002-09-11 Bellows for sliding constant velocity joints

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/489,286 Expired - Lifetime US7235018B2 (en) 2001-09-11 2002-09-11 Bellows for sliding constant velocity joints

Country Status (6)

Country Link
US (2) US20050020366A1 (fr)
JP (2) JP2005502843A (fr)
KR (1) KR20040070357A (fr)
DE (1) DE10242428B4 (fr)
FR (1) FR2829537B1 (fr)
WO (2) WO2003023261A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050029750A1 (en) * 2001-09-11 2005-02-10 Markus Deisinger Bellows for sliding constant velocity joints
US20070023227A1 (en) * 2005-07-29 2007-02-01 Toyoda Gosei Co., Ltd. Rack boot
US20100160053A1 (en) * 2006-06-23 2010-06-24 Shigeru Okubo Boot for universal joint
US20110159971A1 (en) * 2008-09-12 2011-06-30 Markus Deisinger Boot comprising an attachment region with at least two circumferential outside ribs
US20150068855A1 (en) * 2013-09-12 2015-03-12 Sumitomo Riko Company Limited Dust cover

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335551B4 (de) 2003-08-02 2008-08-21 Gkn Driveline International Gmbh Faltenbalg mit ineinanderliegenden Balgabschnitten
JP4532440B2 (ja) * 2004-11-24 2010-08-25 東洋ゴム工業株式会社 ジョイントブーツ
WO2006133550A1 (fr) 2005-06-13 2006-12-21 Duc Dao Joint interne pour capuchon d'articulation homocinétique
WO2008058559A1 (fr) 2006-11-16 2008-05-22 Gkn Driveline International Gmbh Soufflet destiné à assurer l'étanchéité d'une fente annulaire
KR101204698B1 (ko) * 2007-12-12 2012-11-26 게케엔 드리펠린 인터나쇼날 게엠베하 부트 장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702996A (en) * 1954-08-31 1955-03-01 Davis C Edward Bell housing cover
US4844486A (en) * 1986-11-18 1989-07-04 Schiemann Dr Wolfram Bellows for motor vehicle
US5236394A (en) * 1990-09-10 1993-08-17 Gkn Automotive, Inc. External convoluted high speed constant velocity joint boot
US5419741A (en) * 1992-02-25 1995-05-30 Lohr & Bromkamp Gmbh Convoluted boot device
US5765837A (en) * 1996-01-13 1998-06-16 Lohr & Bromkamp Gmbh Convoluted boot with inner annual ribs
US20050029750A1 (en) * 2001-09-11 2005-02-10 Markus Deisinger Bellows for sliding constant velocity joints

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5376253A (en) * 1976-12-20 1978-07-06 Toyota Motor Corp Universal coupling
FR2538478B1 (fr) * 1982-12-22 1985-07-12 Glaenzer Spicer Sa Joint homocinetique tripode, notamment pour transmission de vehicule automobile
DE3309386C1 (de) 1983-03-16 1984-10-18 Fa. Carl Freudenberg, 6940 Weinheim Dichtmanschette
DE3641393C1 (de) 1986-12-04 1988-03-17 Daimler Benz Ag Faltenbalg
FR2608702B1 (fr) * 1986-12-23 1990-11-09 Renault Joint universel d'accouplement
FR2623861B1 (fr) 1987-12-01 1993-04-23 Ouest Cie Soufflet de protection notamment pour transmission avant de vehicule automobile
DE4323686C2 (de) 1993-07-15 1995-07-20 Gkn Automotive Ag Abdichtung von Gelenken
DE19806173C1 (de) 1998-02-17 1999-09-30 Gkn Loebro Gmbh Gelenkwellen mit Faltenbalgabdichtung mit Belüftung des Gelenkinnenraumes
DE10036447A1 (de) 1999-08-06 2001-03-08 Toyo Tire & Rubber Co Flexible Kunstharzmanschette und Herstellverfahren dafür

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702996A (en) * 1954-08-31 1955-03-01 Davis C Edward Bell housing cover
US4844486A (en) * 1986-11-18 1989-07-04 Schiemann Dr Wolfram Bellows for motor vehicle
US5236394A (en) * 1990-09-10 1993-08-17 Gkn Automotive, Inc. External convoluted high speed constant velocity joint boot
US5419741A (en) * 1992-02-25 1995-05-30 Lohr & Bromkamp Gmbh Convoluted boot device
US5765837A (en) * 1996-01-13 1998-06-16 Lohr & Bromkamp Gmbh Convoluted boot with inner annual ribs
US20050029750A1 (en) * 2001-09-11 2005-02-10 Markus Deisinger Bellows for sliding constant velocity joints

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050029750A1 (en) * 2001-09-11 2005-02-10 Markus Deisinger Bellows for sliding constant velocity joints
US7235018B2 (en) * 2001-09-11 2007-06-26 Gkn Driveline International Gmbh Bellows for sliding constant velocity joints
US20070023227A1 (en) * 2005-07-29 2007-02-01 Toyoda Gosei Co., Ltd. Rack boot
US20100160053A1 (en) * 2006-06-23 2010-06-24 Shigeru Okubo Boot for universal joint
US20110159971A1 (en) * 2008-09-12 2011-06-30 Markus Deisinger Boot comprising an attachment region with at least two circumferential outside ribs
US8096889B2 (en) * 2008-09-12 2012-01-17 Gkn Driveline International Gmbh Boot comprising an attachment region with at least three circumferential outside ribs
US20150068855A1 (en) * 2013-09-12 2015-03-12 Sumitomo Riko Company Limited Dust cover
US9394962B2 (en) * 2013-09-12 2016-07-19 Sumitomo Riko Company Limited Dust cover

Also Published As

Publication number Publication date
WO2003023262A1 (fr) 2003-03-20
JP4472335B2 (ja) 2010-06-02
JP2005502844A (ja) 2005-01-27
WO2003023261A1 (fr) 2003-03-20
JP2005502843A (ja) 2005-01-27
DE10242428B4 (de) 2009-07-16
DE10242428A1 (de) 2003-04-17
US7235018B2 (en) 2007-06-26
FR2829537B1 (fr) 2005-06-17
KR20040070357A (ko) 2004-08-09
FR2829537A1 (fr) 2003-03-14
US20050029750A1 (en) 2005-02-10

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AS Assignment

Owner name: GKN AUTOMOTIVE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DEISINGER, MARKUS;WETTE, JOACHIM;SCHOLTZ, THORSTEN;AND OTHERS;REEL/FRAME:015879/0205;SIGNING DATES FROM 20021113 TO 20021217

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION