FR2744506A1 - Support for pivoted tensioner, especially for a pulley belt - Google Patents

Support for pivoted tensioner, especially for a pulley belt Download PDF

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Publication number
FR2744506A1
FR2744506A1 FR9701142A FR9701142A FR2744506A1 FR 2744506 A1 FR2744506 A1 FR 2744506A1 FR 9701142 A FR9701142 A FR 9701142A FR 9701142 A FR9701142 A FR 9701142A FR 2744506 A1 FR2744506 A1 FR 2744506A1
Authority
FR
France
Prior art keywords
support element
support
bore
synthetic material
pivoting
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
FR9701142A
Other languages
French (fr)
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FR2744506B1 (en
Inventor
Manfred Brandenstein
Karl August Lucking
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.)
SKF GmbH
Original Assignee
SKF GmbH
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Filing date
Publication date
Application filed by SKF GmbH filed Critical SKF GmbH
Publication of FR2744506A1 publication Critical patent/FR2744506A1/en
Application granted granted Critical
Publication of FR2744506B1 publication Critical patent/FR2744506B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/081—Torsion springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ropes Or Cables (AREA)
  • Lubricants (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The support (1) consists of a cylindrical axle (5) with a bore through it, supporting a pivoting member (2) via a plain bearing and a tensioner roller (3) on a ball bearing, and having a fixing screw inside the bore. The support is made from a synthetic material - a thermo-setting resin or a polyamide reinforced with glass fibres - containing anti-friction particles of PTFE, molybdenum disulphide or graphite in a proportion up to 20 per cent. The support can also be lined with a spacer bush (6) of rolled metal strip

Description

Support pour un dispositif tendeur pivotant, notamment pour dispositifSupport for a pivoting tensioning device, in particular for a device

tendeur de courroie L'invention concerne un élément de support pour des dispositifs tendeurs pivotants, comportant un axe cylindrique pourvu d'un alésage, qui supporte l'élément pivotant par l'intermédiaire d'un palier lisse, et une  The invention relates to a support element for pivoting tensioning devices, comprising a cylindrical axis provided with a bore, which supports the pivoting element by means of a plain bearing, and a

vis de fixation qui pénètre dans l'alésage dudit axe.  fixing screw which penetrates into the bore of said axis.

Par le document DE 40 15 028 on connaît un dispositif tendeur automatique qui comporte un élément de support avec une garniture de palier lisse cylindrique. Celui-ci est fixé par exemple à un bloc moteur au moyen d'une vis engagée dans un trou débouchant. Un élément pivotant qui porte un galet de tendeur excentré est monté sur la garniture de palier  Document DE 40 15 028 discloses an automatic tensioning device which comprises a support element with a cylindrical plain bearing lining. This is fixed for example to an engine block by means of a screw engaged in a through hole. A pivoting element which carries an eccentric tensioner roller is mounted on the bearing lining

lisse.smooth.

L'élément de support est pourvu d'une plaque de base qui pré-  The support element is provided with a base plate which pre-

sente des moyens de fixation pour une extrémité d'un ressort de tension.  feels fixing means for one end of a tension spring.

Bien qu'il n'y ait aucun critique à formuler quant au fonctionnement du  Although there is no criticism of the functioning of the

dispositif tendeur connu, certaines dispositions permettant d'en simpli-  known tensioning device, certain provisions making it possible to simplify

fier la fabrication apparaissent souhaitables.  pride the manufacturing appear desirable.

La présente invention a pour objectif de permettre de fabriquer à un moindre coût l'élément de support des dispositifs tendeurs connus sans  The object of the present invention is to make it possible to manufacture, at a lower cost, the support element for known tensioning devices without

modification de leur fonctionnement et ni de leur fiabilité.  modification of their operation and their reliability.

Cet objectif est atteint par le fait que l'élément de support est réalisé en un matériau synthétique et que des particules anti-friction sont  This objective is achieved by the fact that the support element is made of a synthetic material and that anti-friction particles are

incorporées audit matériau.incorporated into said material.

Du fait de la réalisation en un matériau synthétique, la plaque de base et l'élément de support peuvent être fabriqués d'une pièce et par  By being made of synthetic material, the base plate and the support element can be produced in one piece and by

conséquent à un coût réduit.therefore at a reduced cost.

Grâce à l'incorporation de particules anti-friction dans le maté-  Thanks to the incorporation of anti-friction particles in the material

riau, la surface cylindrique de l'axe peut être utilisée directement comme surface de palier lisse. Ainsi, par rapport au mode de réalisation connu, un  riau, the cylindrical surface of the axle can be used directly as a plain bearing surface. Thus, compared to the known embodiment, a

seul élément est nécessaire au lieu de trois. Il en résulte des coûts de mon-  only one item is needed instead of three. This results in costs of my-

tage réduits.reduced floor.

On utilise par exemple comme matériau synthétique une résine  For example, a resin is used as a synthetic material.

thermodurcissable ou un polyamide auquel on incorpore jusqu'à 20 pour-  thermosetting or a polyamide which incorporates up to 20 pour-

cents de PTFE, de MoS2 ou de graphite comme agent anti-friction.  cents of PTFE, MoS2 or graphite as an anti-friction agent.

De manière avantageuse, une douille d'espacement traversante est insérée dans l'alésage de l'axe de l'éléments de support. Cette douille  Advantageously, a through spacer sleeve is inserted into the bore of the axis of the support elements. This socket

d'espacement peut être formée d'une bande de métal roulée.  spacer may be formed from a rolled metal strip.

Ces caractéristiques ainsi que d'autres sont décrites de manière détaillée dans ce qui suit, à l'aide de l'exemple de réalisation représenté  These and other characteristics are described in detail in the following, using the example of embodiment shown.

sur le dessin.on the drawing.

La figure unique représente une coupe longitudinale d'un dispo-  The single figure represents a longitudinal section of an arrangement

sitif tendeur pour des courroies d'entraînement. Il se compose pour l'essentiel d'un élément de support 1, d'un élément pivotant 2 qui est monté sur l'élément de support et porte un galet 3 de tendeur tournant monté sur un roulement à billes. Entre l'élément de support 1 et l'élément pivotant 2 est placé un ressort de torsion 4 qui produit la force de tension appliquée à  tensioning device for drive belts. It essentially consists of a support element 1, a pivoting element 2 which is mounted on the support element and carries a roller 3 of a rotating tensioner mounted on a ball bearing. Between the support element 1 and the pivoting element 2 is placed a torsion spring 4 which produces the tension force applied to

la courroie d'entraînement non représentée.  the drive belt not shown.

L'élément de support 1 est pourvu d'un axe 5 cylindrique dans l'alésage duquel est insérée une douille d'espacement 6 formée d'une bande de tôle roulée. Celle-ci reçoit un axe 7 à excentrique pourvu d'un collet, qui sert au réglage de la force de tension du dispositif tendeur et est  The support element 1 is provided with a cylindrical axis 5 in the bore of which is inserted a spacer sleeve 6 formed from a strip of rolled sheet metal. This receives an eccentric pin 7 provided with a collar, which is used for adjusting the tension force of the tensioning device and is

pourvu d'un trou 8 de passage pour une vis de fixation non représentée.  provided with a through hole 8 for a fixing screw not shown.

L'élément de support 1 est intégralement réalisé en un matériau synthétique, selon un procédé de moulage par injection, à partir d'une résine thermodurcissable renforcée par des fibres de verre, contenant % de PTFE en tant qu'agent anti-friction. La surface extérieure de l'axe cylindrique peut ainsi être utilisée directement comme surface de palier lisse 9. La surface de l'alésage de l'élément pivotant 2 est adaptée en conséquence ce qui permet d'obtenir un palier pivotant sans aménagement supplémentaire. L'élément de support 1 est en outre pourvu d'éléments moulés 10 pour le montage fixe en rotation, pour recevoir l'extrémité du ressort 11 de tension, pour supporter axialement 12 l'élément pivotant 2, pour fermer 13 la chambre contenant le ressort, etc.  The support element 1 is entirely made of a synthetic material, according to an injection molding process, from a thermosetting resin reinforced with glass fibers, containing% PTFE as anti-friction agent. The outer surface of the cylindrical axis can thus be used directly as a smooth bearing surface 9. The surface of the bore of the pivoting element 2 is adapted accordingly, which makes it possible to obtain a pivoting bearing without additional arrangement. The support element 1 is further provided with molded elements 10 for fixed mounting in rotation, for receiving the end of the tension spring 11, for axially supporting 12 the pivoting element 2, for closing 13 the chamber containing the spring, etc.

Claims (4)

REVENDICATIONS 1. Elément de support (1) pour un dispositif tendeur pivotant, notamment pour un dispositif tendeur de courroie, comportant un axe (5) cylindrique pourvu d'un alésage, qui supporte l'élément pivotant (2) par l'intermédiaire d'un palier lisse, et une vis de fixation qui pénètre dans l'alésage dudit axe, caractérisé par le fait que l'élément de support (1) est réalisé en un matériau synthétique et que des particules anti-friction sont  1. Support element (1) for a pivoting tensioning device, in particular for a belt tensioning device, comprising a cylindrical axis (5) provided with a bore, which supports the pivoting element (2) by means of a plain bearing, and a fixing screw which penetrates into the bore of said axis, characterized in that the support element (1) is made of a synthetic material and that anti-friction particles are incorporées audit matériau synthétique.  incorporated into said synthetic material. 2. Elément de support selon la revendication 1, caractérisé par le fait que le matériau synthétique est une résine thermodurcissable ou un polyamide renforcé par fibres de verre et qu'il, contient comme particules anti-friction du PTFE, du MoS2 ou du graphite, en une proportion allant  2. Support element according to claim 1, characterized in that the synthetic material is a thermosetting resin or a polyamide reinforced with glass fibers and that it contains, as anti-friction particles, PTFE, MoS2 or graphite, in a proportion ranging jusqu'à 20 %.up to 20%. 3. Elément de support selon la revendication 1 ou 2, caractérisé par le fait qu'une douille d'espacement (6) traversante en métal est insérée  3. Support element according to claim 1 or 2, characterized in that a spacer bushing (6) through metal is inserted dans l'alésage de l'axe.in the axis bore. 4. Elément de support selon la revendication 3, caractérisé par le fait que la douille d'espacement (6) est formée par roulage d'une bande de tôle.  4. Support element according to claim 3, characterized in that the spacer sleeve (6) is formed by rolling a sheet metal strip.
FR9701142A 1996-02-06 1997-02-03 SUPPORT FOR A PIVOTING TENSIONING DEVICE, IN PARTICULAR FOR A BELT TENSIONING DEVICE Expired - Fee Related FR2744506B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29602000U DE29602000U1 (en) 1996-02-06 1996-02-06 Supporting body

Publications (2)

Publication Number Publication Date
FR2744506A1 true FR2744506A1 (en) 1997-08-08
FR2744506B1 FR2744506B1 (en) 1999-04-23

Family

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Family Applications (1)

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FR9701142A Expired - Fee Related FR2744506B1 (en) 1996-02-06 1997-02-03 SUPPORT FOR A PIVOTING TENSIONING DEVICE, IN PARTICULAR FOR A BELT TENSIONING DEVICE

Country Status (4)

Country Link
KR (1) KR970062405A (en)
DE (1) DE29602000U1 (en)
FR (1) FR2744506B1 (en)
IT (1) IT1291486B1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2879708A1 (en) 2004-12-20 2006-06-23 Skf Ab INSTRUMENT BELT TENSIONER ROLLING DEVICE AND METHOD OF CONTROLLING THE SAME
FR2879707A1 (en) 2004-12-20 2006-06-23 Skf Ab Timing belt tensioning idler pulley device for use in internal combustion heat engine, has operating crank including reluctor unit for detecting predetermined wear limit of belt based on angular position of crank with respect to support
EP1696217A1 (en) 2005-02-28 2006-08-30 Aktiebolaget SKF Implemented belt tensioning idler pulley device and associated method of testing
US7114853B2 (en) 2003-09-04 2006-10-03 Aktiebolaget Skf Suspension thrust bearing device
US7275462B2 (en) 2002-06-20 2007-10-02 Aktiebolaget Skf Tensioning device for prestressing a rod, and related tensioning method
US7290351B2 (en) 2002-01-29 2007-11-06 Aktiebolaget Skf Mounting bracket, rolling bearing and corresponding assembly method
US7429133B2 (en) 2002-07-02 2008-09-30 Aktiebolaget Skf Instrumented antifriction bearing and electrical motor equipped therewith
US7467702B2 (en) 2004-07-02 2008-12-23 Aktiebolaget Skf Clutch release bearing and method of manufacture
US7699732B2 (en) 2001-11-13 2010-04-20 Aktiebolaget Skf Instrumented take-up unit and related control method
US7766140B2 (en) 2003-07-28 2010-08-03 Skf France Freewheel bearing device with torque limiter
US7811005B2 (en) 2001-09-12 2010-10-12 Aktiebolaget Skf Thrust bearing device for a vehicle suspension
US8201315B2 (en) 2004-06-02 2012-06-19 Aktiebolaget Skf Method for controlling tensile stress of a shank, such as a screw or dowel pin, and device for carrying out said method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701087B4 (en) * 1997-01-15 2005-12-22 Skf Gmbh jig
DE19702992A1 (en) * 1997-01-28 1998-07-30 Schaeffler Waelzlager Ohg Belt and chain tensioner
DE19739816B4 (en) * 1997-09-11 2005-07-28 Skf Gmbh Supporting body for clamping devices
WO1999047833A1 (en) * 1998-03-13 1999-09-23 Litens Automotive Partnership Belt tensioner for motor vehicle
DE102004036851A1 (en) * 2004-07-29 2006-03-23 Ina-Schaeffler Kg Swivel element of tensioning device, especially for endless drive belts in auxiliary drives of internal combustion engines, has working eccentric supporting tensioning roller, and support sleeve supporting end of torsion spring
FR2902699B1 (en) 2006-06-26 2010-10-22 Skf Ab SUSPENSION STOP DEVICE AND FORCE LEG.
FR2906587B1 (en) 2006-10-03 2009-07-10 Skf Ab TENDERING ROLLER DEVICE.
FR2913081B1 (en) 2007-02-27 2009-05-15 Skf Ab DEBRAYABLE PULLEY DEVICE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120354A (en) * 1982-05-17 1983-11-30 Imp Clevite Inc Apparatus for maintaining tension of an endless drive member
GB2258287A (en) * 1991-07-31 1993-02-03 Ntn Toyo Bearing Co Ltd Belt tensioner adjusting device
US5354242A (en) * 1992-10-08 1994-10-11 St John Richard C Automatic belt tensioner with an enclosed flat wire power spring and improved zeroing and damping means
US5443424A (en) * 1994-10-20 1995-08-22 Dayco Products, Inc. Belt tensioner and method of making the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120354A (en) * 1982-05-17 1983-11-30 Imp Clevite Inc Apparatus for maintaining tension of an endless drive member
GB2258287A (en) * 1991-07-31 1993-02-03 Ntn Toyo Bearing Co Ltd Belt tensioner adjusting device
US5354242A (en) * 1992-10-08 1994-10-11 St John Richard C Automatic belt tensioner with an enclosed flat wire power spring and improved zeroing and damping means
US5443424A (en) * 1994-10-20 1995-08-22 Dayco Products, Inc. Belt tensioner and method of making the same

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7811005B2 (en) 2001-09-12 2010-10-12 Aktiebolaget Skf Thrust bearing device for a vehicle suspension
US7699732B2 (en) 2001-11-13 2010-04-20 Aktiebolaget Skf Instrumented take-up unit and related control method
US7290351B2 (en) 2002-01-29 2007-11-06 Aktiebolaget Skf Mounting bracket, rolling bearing and corresponding assembly method
US7275462B2 (en) 2002-06-20 2007-10-02 Aktiebolaget Skf Tensioning device for prestressing a rod, and related tensioning method
US7429133B2 (en) 2002-07-02 2008-09-30 Aktiebolaget Skf Instrumented antifriction bearing and electrical motor equipped therewith
US7766140B2 (en) 2003-07-28 2010-08-03 Skf France Freewheel bearing device with torque limiter
US7114853B2 (en) 2003-09-04 2006-10-03 Aktiebolaget Skf Suspension thrust bearing device
US8201315B2 (en) 2004-06-02 2012-06-19 Aktiebolaget Skf Method for controlling tensile stress of a shank, such as a screw or dowel pin, and device for carrying out said method
US7467702B2 (en) 2004-07-02 2008-12-23 Aktiebolaget Skf Clutch release bearing and method of manufacture
FR2879708A1 (en) 2004-12-20 2006-06-23 Skf Ab INSTRUMENT BELT TENSIONER ROLLING DEVICE AND METHOD OF CONTROLLING THE SAME
FR2879707A1 (en) 2004-12-20 2006-06-23 Skf Ab Timing belt tensioning idler pulley device for use in internal combustion heat engine, has operating crank including reluctor unit for detecting predetermined wear limit of belt based on angular position of crank with respect to support
FR2882580A1 (en) 2005-02-28 2006-09-01 Skf Ab INSTRUMENT BELT TENSIONER ROLLING DEVICE AND METHOD OF CONTROLLING THE SAME
EP1696217A1 (en) 2005-02-28 2006-08-30 Aktiebolaget SKF Implemented belt tensioning idler pulley device and associated method of testing

Also Published As

Publication number Publication date
KR970062405A (en) 1997-09-12
IT1291486B1 (en) 1999-01-11
DE29602000U1 (en) 1996-03-21
ITTO970073A1 (en) 1998-07-31
FR2744506B1 (en) 1999-04-23

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