FR2591301A1 - Bellows for constant-velocity joint - Google Patents

Bellows for constant-velocity joint Download PDF

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Publication number
FR2591301A1
FR2591301A1 FR8616944A FR8616944A FR2591301A1 FR 2591301 A1 FR2591301 A1 FR 2591301A1 FR 8616944 A FR8616944 A FR 8616944A FR 8616944 A FR8616944 A FR 8616944A FR 2591301 A1 FR2591301 A1 FR 2591301A1
Authority
FR
France
Prior art keywords
bellows
velocity joint
valve
constant velocity
atmosphere
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.)
Granted
Application number
FR8616944A
Other languages
French (fr)
Other versions
FR2591301B3 (en
Inventor
Corrado Egidi
Elio Pleitavino
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.)
Fiat Auto SpA
Original Assignee
Fiat Auto SpA
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 Fiat Auto SpA filed Critical Fiat Auto SpA
Publication of FR2591301A1 publication Critical patent/FR2591301A1/en
Application granted granted Critical
Publication of FR2591301B3 publication Critical patent/FR2591301B3/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J3/00Diaphragms; Bellows; Bellows pistons
    • F16J3/04Bellows
    • F16J3/041Non-metallic bellows
    • F16J3/046Lubrication or venting arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • F16D2003/846Venting arrangements for flexible seals, e.g. ventilation holes

Landscapes

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

Abstract

In order to prevent the outlet of grease and to allow the inlet of air when there is a partial vacuum inside the bellows, this bellows has a lip valve 4 as well as holes 2, 2a which allow the chamber situated in front of the valve 4 to communicate with the atmosphere.

Description

ta présente invention a pour objet un soufflet pour joint homocinétique muni d'une valve à lèvre dspo- sée à proximité de la zone de montage du soufflet sur le demi-arbre. The subject of your present invention is a bellows for constant velocity joint provided with a lip valve placed close to the zone for mounting the bellows on the half-shaft.

I1 est connu, depuis longtemps, que les soufflets actuellement utilisés présentent l'inconvénient de subir des appels d'air en fonctionnement, ce qui crée des déformations qui réduisent la durée qu'on peut obtenir de ces soufflets. I1 has long been known that the bellows currently used have the drawback of undergoing air draws in operation, which creates deformations which reduce the duration that can be obtained from these bellows.

Ces inconvénients ont par conséquent pour effet, en premier lieu, de compromettre l'intégrité du soufflet et de porter préjudice à son fonctionnement et, en deuxième lieu, de compromettre l'intégrité du joint et d'entraîner sa détérioration prématurée. These drawbacks therefore have the effect, firstly, of compromising the integrity of the bellows and of prejudicing its operation and, secondly, of compromising the integrity of the seal and of causing its premature deterioration.

Afin d'éliminer les inconvénients précités, la présente invention se propose de réaliser un soufflet pour joint homocinétique caractérisé en ce qu'il comprend une valve à livre disposée à proximité de la zone de montage du soufflet sur le demi-arbre, de manière à éviter la sortie de la graisse et à permettre l'entrée de l'air lorsqu'il se crée une dépression à l'intérieur du soufflet. In order to eliminate the aforementioned drawbacks, the present invention proposes to produce a bellows for constant velocity joint characterized in that it comprises a book valve disposed near the zone for mounting the bellows on the half-shaft, so as to avoid the exit of the grease and allow the entry of air when a vacuum is created inside the bellows.

En outre, plusieurs rainures axiales et/ou plusieurs trous, convenablement pratiqués, mettent la chambre située en avant de la valve à livre en communication avec l'atmosphère. In addition, several axial grooves and / or several holes, suitably made, put the chamber located in front of the book valve in communication with the atmosphere.

D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre, d'un exemple de réalisation et en se référant aux dessins annexés sur lesquels,
la figure 1 est une vue en coupe du soufflet objet de l'invention avec des trous convenablement pratiqués entre la zone de montage et la valve à lèvre
la figure 2 est une vue en coupe du soufflet selon l'invention, avec des rainures axiales convenablement pratiquées sur la zone de montage sur le demi-ar bre
la figure 3 est une vue en coupe selon la ligne
A-A de la figure 2.
Other characteristics and advantages of the invention will appear during the description which follows, of an exemplary embodiment and with reference to the appended drawings in which,
Figure 1 is a sectional view of the bellows object of the invention with holes suitably formed between the mounting area and the lip valve
Figure 2 is a sectional view of the bellows according to the invention, with axial grooves suitably formed on the mounting area on the half-shaft
Figure 3 is a sectional view along the line
AA in Figure 2.

Sur la figure 1, on a indiqué en C un soufflet, des trous traversants convenablement pratiqués entre la zone de montage 3 et la valve à lèvre 4 du soufflet C, en 5 et 5a, on a indiqué des ondulations qui caractérisent le profil du soufflet C disposé sur le demi-arbre, non représenté sur le dessin. In FIG. 1, there has been indicated at C a bellows, through holes suitably formed between the mounting zone 3 and the lip valve 4 of bellows C, at 5 and 5a, corrugations which characterize the profile of the bellows have been indicated. C arranged on the half-shaft, not shown in the drawing.

La valve à lèvre 4 est pratiquée, à l'intérieur du soufflet C, de façon à éviter la sortie de la graisse et à permettre en outre l'entrée de l'air lorsqu'il se crée une dépression à l'intérieur du soufflet. The lip valve 4 is made, inside the bellows C, so as to avoid the exit of the grease and in addition to allow the entry of air when a vacuum is created inside the bellows .

tes trous 2 et 2a d'entrée et de sortie de l'air mettent la chambre située en avant de la valve à lèvre 4 en communication avec l'atmosphère. your air inlet and outlet holes 2 and 2a place the chamber located in front of the lip valve 4 in communication with the atmosphere.

Sur la figure 2, on a indiqué par les mêmes numéros de référence les caractéristiques de la présente invention qui ont été décrites sur la figure 1, avec la seule différence consistant dans la zone de montage 3 du soufflet sur le demi-arbre, dans laquelle on a convenablement pratiqué des rainures axiales, qui sont représentées sur le dessin par au moins l'une d'elles, la rainure 2b, en remplacement des trous 2 et 2a, ces rainures assurant la même fonction que celle qui a été décrite plus haut à propos des trous 2 et 2a décrits sur la figure 1.  In FIG. 2, the characteristics of the present invention have been indicated by the same reference numbers, which have been described in FIG. 1, with the only difference consisting in the mounting zone 3 of the bellows on the half-shaft, in which axial grooves have been suitably practiced, which are represented in the drawing by at least one of them, the groove 2b, replacing the holes 2 and 2a, these grooves ensuring the same function as that which has been described above about the holes 2 and 2a described in figure 1.

Sur la figure 3, on a indiqué en 1, 2 et 3 des rainures axiales, d'entrée et de sortie de l'air, pratiquées sur la zone 3 de montage sur le demi-arbre et qui servent à mettre la chambre -située en avant de la valve à lèvre 4 en communication avec l'atmosphère. In Figure 3, there are indicated in 1, 2 and 3 axial grooves, air inlet and outlet, made on the mounting area 3 on the half-shaft and which serve to put the chamber -located in front of the lip valve 4 in communication with the atmosphere.

Bien entendu, diverses modifications pourront être apportées par l'homme de l'art au dispositif gui vient d'être décrit uniquement à titre d'exemple non limitatif sans sortir du cadre de l'invention.  Of course, various modifications may be made by those skilled in the art to the device which has just been described by way of non-limiting example without departing from the scope of the invention.

Claims (4)

REVENDICATIONS 1. Soufflet (C) pour joint homocinétique, caractérisé en ce qu'il comprend une valve à Lèvre t4) disposée à proximité de la zone (3) de montage du soufflet (C) sur Le demi-arbre. 1. Bellows (C) for constant velocity joint, characterized in that it comprises a lip valve t4) disposed near the zone (3) for mounting the bellows (C) on the half-shaft. 2. Soufflet (C) pour joint homocinétique selon la revendication 1, caractérisé en ce que ladite valve à Lièvre (4) est disposée de façon à éviter La sortie de la graisse et à permettre 2. Bellows (C) for constant velocity joint according to claim 1, characterized in that said hare valve (4) is arranged so as to prevent the exit of the fat and to allow L'entrée de l'air lorsqu'il se crée une dépression à L'intérieur du soufflet.The entry of air when a vacuum is created inside the bellows. 3. Soufflet (C) pour joint homocinétique selon L'une des revendications 1 et 2, caractérisé en ce que plusieurs trous traversants (2, 2a) mettent ta chambre située en avant de la valve à Levure (4) en communication avec l'atmosphère  3. Bellows (C) for constant velocity joint according to one of claims 1 and 2, characterized in that several through holes (2, 2a) put your chamber located in front of the yeast valve (4) in communication with the atmosphere 4. Soufflet (C) pour joint homocinétique selon L'une quelconque des revendications 1 à 3, caractérisé en ce que des rainures axiales (1, 2, 3) mettent la chambre située en avant de la valve à lèvre (4) en communication avec l'atmosphère.  4. Bellows (C) for constant velocity joint according to any one of claims 1 to 3, characterized in that axial grooves (1, 2, 3) put the chamber located in front of the lip valve (4) in communication with the atmosphere.
FR8616944A 1985-12-05 1986-12-03 BELLOWS FOR HOMOCINETIC JOINT Expired FR2591301B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5417585 1985-12-05

Publications (2)

Publication Number Publication Date
FR2591301A1 true FR2591301A1 (en) 1987-06-12
FR2591301B3 FR2591301B3 (en) 1988-04-08

Family

ID=11286868

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8616944A Expired FR2591301B3 (en) 1985-12-05 1986-12-03 BELLOWS FOR HOMOCINETIC JOINT

Country Status (4)

Country Link
BR (1) BR6602430U (en)
DE (1) DE8632511U1 (en)
ES (1) ES1003252Y (en)
FR (1) FR2591301B3 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145191A (en) * 1991-04-10 1992-09-08 International Sales & Engineering, Inc. Heat-resistant protective cover for a drive axle joint seal
US5273490A (en) * 1991-04-10 1993-12-28 International Sales & Engineering, Inc. Abrasion-resistant protective cover
US5695202A (en) * 1996-09-27 1997-12-09 Trw Inc. Flexible boot for enclosing a universal joint
EP1022496A3 (en) * 1999-01-19 2001-03-07 Wolfgang Didszuhn Sealing sleeve for hinge connection
ES2161121A1 (en) * 1998-02-17 2001-11-16 Gkn Loebro Gmbh Driveshafts having convoluted boot seals with ventilation for joint interior
US6820876B2 (en) * 2002-07-09 2004-11-23 Showa Corporation Boot for universal joint
WO2006133550A1 (en) * 2005-06-13 2006-12-21 Duc Dao Inner seal for cv joint boot
EP2530347A4 (en) * 2010-01-27 2018-03-28 NTN Corporation Constant velocity universal joint

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262142B (en) * 1991-12-03 1995-04-19 Draftex Ind Ltd Protective bellows
FR2796686B1 (en) 1999-07-19 2001-12-07 Gkn Glaenzer Spicer BELLOWS AND CORRESPONDING TRANSMISSION JOINT
DE102007015073B4 (en) * 2006-12-28 2010-10-07 Ifa-Technologies Gmbh Rolling bellows for drive shafts of motor vehicles
DE102008021646B4 (en) * 2008-04-30 2015-04-09 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Disc brake for a commercial vehicle
DE102008034652A1 (en) * 2008-07-25 2010-02-04 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH On a guide rail of a disc brake arranged bellows

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145191A (en) * 1991-04-10 1992-09-08 International Sales & Engineering, Inc. Heat-resistant protective cover for a drive axle joint seal
US5273490A (en) * 1991-04-10 1993-12-28 International Sales & Engineering, Inc. Abrasion-resistant protective cover
US5695202A (en) * 1996-09-27 1997-12-09 Trw Inc. Flexible boot for enclosing a universal joint
ES2161121A1 (en) * 1998-02-17 2001-11-16 Gkn Loebro Gmbh Driveshafts having convoluted boot seals with ventilation for joint interior
EP1022496A3 (en) * 1999-01-19 2001-03-07 Wolfgang Didszuhn Sealing sleeve for hinge connection
US6820876B2 (en) * 2002-07-09 2004-11-23 Showa Corporation Boot for universal joint
WO2006133550A1 (en) * 2005-06-13 2006-12-21 Duc Dao Inner seal for cv joint boot
US8287393B2 (en) 2005-06-13 2012-10-16 Duc Dao Inner seal for CV joint boot
US9005042B2 (en) 2005-06-13 2015-04-14 Salflex Polymers Limited Inner seal for CV joint boot
EP2530347A4 (en) * 2010-01-27 2018-03-28 NTN Corporation Constant velocity universal joint

Also Published As

Publication number Publication date
ES1003252Y (en) 1989-02-16
DE8632511U1 (en) 1987-04-09
ES1003252U (en) 1988-07-16
BR6602430U (en) 1987-11-24
FR2591301B3 (en) 1988-04-08

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