DE10328900A1 - Clamping system with a Drechstab as spring means - Google Patents

Clamping system with a Drechstab as spring means

Info

Publication number
DE10328900A1
DE10328900A1 DE2003128900 DE10328900A DE10328900A1 DE 10328900 A1 DE10328900 A1 DE 10328900A1 DE 2003128900 DE2003128900 DE 2003128900 DE 10328900 A DE10328900 A DE 10328900A DE 10328900 A1 DE10328900 A1 DE 10328900A1
Authority
DE
Germany
Prior art keywords
torsion bar
clamping system
housing
system according
3b
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.)
Withdrawn
Application number
DE2003128900
Other languages
German (de)
Inventor
Michael Dipl.-Ing. Bogner
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to DE2003128900 priority Critical patent/DE10328900A1/en
Publication of DE10328900A1 publication Critical patent/DE10328900A1/en
Withdrawn legal-status Critical Current

Links

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
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/10Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281Means 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
    • 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
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/10Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1209Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
    • F16H7/1218Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means of the dry friction type
    • 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
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0802Actuators for final output members
    • F16H2007/081Torsion springs
    • 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
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0876Control or adjustment of actuators
    • F16H2007/0878Disabling during transport

Abstract

The invention relates to a tensioning system (1b) of a traction mechanism drive, comprising a pivoting lever (2) which is rotationally rigidly connected to a torsion bar (3b). In the installed state of the torsion bar (3b) is positively inserted end into a receptacle (33) of the separately arranged machine part (21).

Description

  • Territory of invention
  • The The invention relates to a tensioning system for a traction means, such as belts or chain of a traction mechanism, comprising a pivoting lever, as a spring means designed as a torsion bar or torsion bar Includes rotary axis. The pivot lever is at a free end a rotatable running disk assigned, which is supported in the installed state on the traction means. In the area of the axis of rotation of the pivot lever, the clamping system is still with a damping unit Mistake.
  • clamping systems This type are preferably in traction drives for internal combustion engines for driving individual units such as, for example, water pump, Air conditioning compressor, power steering pump used, the drive of the crankshaft is done by means of a pulley. Furthermore are these clamping systems for a traction drive of the internal combustion engine to be designated as a control drive determines that for driving a camshaft or more camshafts is provided. The clamping system has the task of automatically maintaining a constant Pretension of the traction device and a vibration damping too guarantee, independently from the place of use of the internal combustion engine and the state of wear of the traction device.
  • From the DE 39 12 944 A1 is known a clamping system in which the pivot arm is connected to a torsion bar. The fastening of the clamping system by means of an end arranged on the torsion bar retaining tab which is attached to a machine part, for example, the housing of an internal combustion engine. In the area of the retaining tab, the known solution has a friction damper, which is thus fastened to the rotor disk on the torsion bar. A disadvantage, the known clamping system is supported and fixed exclusively on the retaining tab. A determined by the length of the torsion bar lever between the rotor and the retaining tab initiates a large tilting moment in the retaining tab, which sets no vibration-free attachment of the clamping system. This clamping system concept can not meet the requirements with regard to the vibration behavior and noise development that are placed on the traction mechanisms of today's internal combustion engines. Furthermore, the known clamping system requires a disadvantageous large axial space.
  • Summary the invention
  • The Attention to the disadvantages of the known clamping system, it is the task of Invention, a space-optimized, inexpensive to produce and effective Realize clamping system.
  • to solution This problem is according to the invention a clamping system provided with a fixed, for example, on a machine part mounted housing in which the pivot lever means a hub is rotatably mounted. This measure has an advantageous effect small offset between the rotor and the bearing of the pivot lever in the case, whereby the transmitted from the traction means on the running disk Radial force no adverse overturning moment in the pivot lever bearing initiates. This structure allows advantageous an effective compensation of vibrations of the traction means, the for example, by a rotational nonuniformity of the internal combustion engine via the Crankshaft are introduced into the traction drive. The for the function the tensioning system required damping unit is inventively space-optimized between the case the clamping system and the hub of the pivot lever provided. Of the damping unit is associated with a spring means which a non-positive support of the Guaranteed hub of the pivot lever on the housing. The torsion bar or the torsion bar of the clamping system according to the invention is provided with a first End rigidly fixed to the pivot lever. In the installation position engages the other end of the torsion bar form-fitting and thus torsionally rigid in one of the clamping device separately associated component, for example in a profiled recording of the machine part.
  • The Concept of the clamping system according to the invention includes a separation of the mounting of the pivot arm on the one hand and a generation of the biasing force of the pivot lever by means of Torsion bar on the other hand. This a functional separation enabling Design principle advantageously improves the operation of the inventive clamping system.
  • Further advantageous embodiments of the invention are the subject of the dependent claims 2 to 15th
  • In Advantageously, according to the invention a tubular one Torsion bar provided. This designed as a hollow body torsion bar allows a weight-optimized Design, at the same time high moment of resistance, resulting in sets a sufficient component strength of the torsion bar. The design the torsion bar looks as well At both ends a profiling before, in the installed state on the one hand form-fitting, torsionally rigid in the pivot lever and on the other hand in a corresponding Profiling a recording of the machine part engages. Demand-dependent the profiling on the inside or outside of the tubular torsion bar to be ordered.
  • Alternatively to a ausgebil as a hollow body Deten torsion bar, the invention also includes a solid designed profile bar. For this purpose, it is advisable to provide several individual, for example, in each case a square cross-sectional profile having profiled bars, which together, together form a torsion bar.
  • The Invention allows continue the rotary or torsion bar in different lengths and / or wall thickness interpreted, for example, directly to the spring constant of the To influence the torsion bar. The different training of the Rotary or torsion bar can also reduce lead from clamping system variants, in which except for the torsion bar all other components of the clamping system identical are. With that you can Clamping systems that match up to the torsion bar for different Applications or Traction drives are designed.
  • A Another preferred embodiment of the invention provides, the tubular torsion bar with a constriction and / or an outside bead to provide. These design features form, for example, a Depth stop, which simplifies the installation, in which this the installation position of Torsion bar defined in a receptacle of the machine part. The constriction or Beading can also be used for the position positioning of the pivot lever on the torsion bar as well as end stop or axial support a spring means.
  • When Measure, with the torsion of the torsion bar substantially to a range partially limited can be is according to the invention the torsion bar with a radially stepped portion or one over a longer Section extending constriction. Preferably is to the torsion bar at the end facing the machine part graduated. This design feature reduces the effective Diameter of the torsion bar, combined with a reduced moment of resistance and at the same time reduced spring stiffness of the torsion bar. alternative to a radially stepped torsion bar, it lends itself to the spring stiffness or spring constant of the rotary rod through different wall thicknesses influence. This is advantageous to the pivot lever of the clamping system assigned portion of the torsion bar provided with an increased wall thickness in comparison to the wall thickness at the opposite, the Machine part associated portion of the torsion bar.
  • A Effective storage of the pivot lever is advantageously by means of a conically shaped bearing bush. For this purpose, the hub of the pivot lever forms a conical surface, with a radially spaced, corresponding inner conical Recording of the housing corresponds. The bearing bush is in a radial from the lateral surface the hub and the conical housing of the housing limited installation space used.
  • A powerful support the conical lateral surface in conjunction with the bearing bush on the inner wall of the conical Recording of the housing allows the formation of a designed as a friction cone damping unit. So that can an effective damping achieved by adjusting movements of the pivot lever in the operating state be, which affects the wear and the noise the traction means and thus advantageously the function of the entire Clamping system improved.
  • to Achieving a defined relative movement between the bearing bush and the housing is the bearing bush form-fitting connected to the hub of the pivot lever. This is preferably suitable a radially inwardly directed approach, which in a longitudinal groove or a partial recess of the lateral surface of the hub engages positively.
  • alternative to a conical bushing, the invention further closes an axial friction disc, which in the installed state between an axial support surface of the Swivel lever and a corresponding axial bearing surface of the housing used is. By means of a spring means is an axial force, the pivot lever to the housing presses to form a damping unit. additionally to the axial friction disc comprises a clamping system constructed in this way a preferably designed as a plain bearing radial bearing. The preferred as a sleeve designed sliding bearing is in a radially of the cylindrical guide approach the Schwenkhebelnabe and a cylindrical recess of the housing limited Annular gap used.
  • A for the Effectiveness of the damping unit required axial force is advantageous by means of a coil spring formed trained compression spring. The first end of the spring is on the housing supported by the clamping system is and supports the second spring end on a stop sleeve from, which is fixed to the torsion bar. Alternative to a helical spring it offers according to the invention, a or to arrange a plurality of disc springs that a space-optimized Allow arrangement.
  • The housing of the clamping system is preferably integrally provided with a mounting flange, which is fastened in the installed position by means of a screw detachably on the machine part of the internal combustion engine. Preferably, the mounting flange with a screw for provided with a specific hole.
  • A further embodiment of the invention provides, on the hub of the pivot lever to arrange a tool holder designed as a polygonal profile, the for a tool is determined. By means of a in the tool holder used separate tool, the swivel arm is rotatable relative to the housing, wherein the rotation counter to a force component of the torsion bar he follows. This measure simplifies the placement of the traction device after the clamping system assembly, in which the traction means in a mounting position of the pivot lever, which corresponds to an unstressed traction device, unhindered at all participating pulleys of the traction drive are placed can.
  • Preferably includes the clamping system continues to be a pinning, in which a locking pin the pivot lever opposite the housing positionally positioned in the mounting position. It is a good idea separate pen, which in a position match between a Recess in the mounting flange and a hole in the hub the pivot lever is used for locking.
  • Short description the drawings
  • following The invention will be explained in more detail with reference to two exemplary embodiments. It demonstrate:
  • 1 in a sectional view of the structure of a clamping system according to the invention comprising a conical bushing;
  • 2 an inventive clamping system in the installed state, in which the damping unit comprises an axial friction disc;
  • 3 in a perspective according to the clamping system according to the invention.
  • detailed Description of the drawings
  • The 1 shows a clamping system 1a in a longitudinal section. Specifically, the clamping system includes 1a a pivot lever 2 , which with one, a rotation axis 4 forming torsion bar 3a rotatably connected. For the positive connection between the pivot lever 2 and the axis of rotation 3a is a profiling 5 provided as the external toothing of the torsion bar 3a formed, in a corresponding inner profiling of a longitudinal bore 6 a hub 7 of the pivot lever 2 intervenes. At the free end of the pivot lever 2 is one about a rolling bearing 8th rotatably mounted running disk 9 arranged in the installed state non-positively on a traction means 10 supported. The swivel lever 2 is rotatable in a housing 11 arranged and stored.
  • This is the hub 7 with a conical lateral surface 12 provided, which is a conical receptacle of the housing 11 is assigned, wherein between the lateral surface 12 and the recording 13 a bearing bush 14 is provided. To achieve a relative movement between the bearing bush 14 and the housing 11 , in positioning movements of the pivot lever 2 opposite the stationary arranged housing 11 , is the bearing bush 14 positively with the hub 7 connected. For this purpose, a radially inwardly directed nose engages 15 the bearing bush 14 in a correspondingly formed recess 16 the hub 7 , The bearing bush designed as a friction cone 14 forms with the components in operative connection, the hub 7 and the housing 11 a damping unit 24a ,
  • This damping unit 24a has the task of adjusting movements of the pivot lever 2 to dampen, ie to avoid uncontrolled positioning movements. For this purpose, the components, the housing 11 and the hub 7 of the pivot lever 2 by means of a compression spring 17 pressed against each other. The spring designed as a helical spring 17 is supported with a spring end frontally on the housing 11 from and with the other spring end to a stop sleeve 18 , which is part of an expanded approach 19 of the torsion bar 3a is axially supported. The free end of the torsion bar 3a is in the installed state positive manner via a profiling 20 with an in 2 pictured machine part 21 connected. In the installation position of the clamping system 1a is the case 11 by means of a through a hole 23 a mounting flange 22 guided screw on the machine part 21 releasably secured.
  • This in 2 pictured clamping system 1b is shown in the installation position. The clamping system 1b is different from the one in 1 pictured clamping system 1a by a different construction of the damping unit 24b and a different torsion bar 3b , All other components are in perfect agreement with the clamping system 1a in the description of the 1 are explained.
  • The damping unit 24b includes an axial friction disc 25 between a support surface 26 of the pivot lever 2 and a corresponding axial bearing surface of the hub 7 is used. The swivel lever 2 is by means of a sliding bearing 28 rotatably in the housing 11 used. For this purpose the hub forms 7 a cylindrical approach 29 who in to approach 29 radially spaced receiving bore 30 is used, wherein the sliding bearing 28 the annular gap between the neck 29 and the hole 30 fills. The torsion bar 3b points to the machine part 21 directed end initially a radially outward bead 31 on, on which the An shock sleeve 18 for the compression spring 17 is axially supported. Immediately to the bead 31 closes a radially stepped section 32 on, the form-fitting to create a rotation in a correspondingly profiled recording 33 of the machine part 21 is fitted. For example, the section offers itself 32 form as a polygonal profile or as a splined shaft section, which in a corresponding corresponding profile of the recording 33 positively engages.
  • As tolerance compensation is the section 32 of the torsion bar 3b from a compensation element 34 enclosed, which in the installed state at the same time a backlash-free installation of the torsion bar 3b in the machine part 21 established. The radially stepped section 32 also allows a small-sized recording 33 and continues to influence the spring stiffness of the torsion bar 3b , This measure ensures a desired position-limited torsion of the torsion bar 3b , Again 2 can be seen, allows the clamping system 1b an installation position in which the housing 11 by means of a cylindrical guide approach 35 in a stepped bore 36 of the machine part 21 centered is used. At the same time is the compression spring 17 in connection with the stop sleeve 18 as well as the free end of the torsion bar 3b in the machine part 21 arranged, resulting in the required axial space of the clamping system 1b reduces and total one for the function of the clamping system 1b favorable protected installation situation sets.
  • The 3 shows the clamping system 1a in a perspective. This illustration illustrates, for example, the design of the profiling 20 of the torsion bar 3a and the formation of the mounting flange 22 that is integral with the housing 11 connected is. The pinning 37 has the task of a mounting position of the pivot lever 2 opposite the housing 11 to secure. For this purpose, by means of a separate tool, the form-fitting in a tool holder 38 of the pivot lever 2 engages achieved a relative rotation of these components, wherein the torsion bar 3a is tense. In the 3 shown mounting position is by means of a separate locking pin 39 secured in a hole 40 of the mounting flange 22 inserted, positively in a recess 41 of the pivot lever 2 intervenes. After installation of the traction device 10 becomes the security pin 39 removed, followed by the pivot lever 2 automatically, due to the prestressing force of the torsion bar 3a , pivoted into the operating position and thereby a biasing force on the traction means 10 exercises.
  • 1a
    clamping system
    1b
    clamping system
    2
    pivoting lever
    3a
    torsion bar
    3b
    torsion bar
    4
    axis of rotation
    5
    profiling
    6
    longitudinal bore
    7
    hub
    8th
    roller bearing
    9
    sheave
    10
    traction means
    11
    casing
    12
    lateral surface
    13
    admission
    14
    bearing bush
    15
    nose
    16
    recess
    17
    compression spring
    18
    stop sleeve
    19
    approach
    20
    profiling
    21
    machinery
    22
    mounting flange
    23
    drilling
    24a
    damping unit
    24b
    damping unit
    25
    friction
    26
    supporting
    27
    contact surface
    28
    bearings
    29
    approach
    30
    drilling
    31
    Beading
    32
    section
    33
    admission
    34
    compensation element
    35
    leadership approach
    36
    stepped bore
    37
    pinning
    38
    tool holder
    39
    safety pin
    40
    drilling
    41
    recess

Claims (15)

  1. Tensioning system for traction means, such as belt or chain, of a traction mechanism drive, comprising a pivoting lever ( 2 ), which serves as a spring means as a torsion bar ( 3a . 3b ) formed rotary axis ( 4 ), wherein the pivot lever ( 2 ) at a free end, one at the traction means ( 10 ) non-positively supported, rotatable running disk ( 9 ) and in the area of the axis of rotation ( 4 ) a damping unit ( 24a . 24b ), characterized by a clamping system ( 1a . 1b ), which has a stationary housing ( 11 ), in which the pivoting lever ( 2 ) by means of egg ner hub ( 7 ) is rotatably mounted and the kraftbeaufschlagten damping unit ( 24a . 24b ) between the housing ( 11 ) and the hub ( 7 ) of the pivoting lever ( 2 ) is provided, wherein the torsion bar ( 3a . 3b ) with a first end torsionally rigid with the pivot lever ( 2 ) and with the further end in one of the clamping system ( 1a . 1b ) separate machine part ( 21 ) positively, rotationally fixed engages.
  2. Tensioning system according to claim 1, comprising a tubular torsion bar ( 3a . 3b ), which in each case end profiling on the inside or outside ( 5 . 20 ) having.
  3. Clamping system according to claim 1, provided with a torsion bar, which is formed at least from a solid profile bar.
  4. Tensioning system according to claim 1, wherein the torsion bar ( 3a . 3b ) by means of a positive and / or non-positive connection on the one hand with the pivot lever ( 2 ) and on the other hand with the machine part ( 21 ), For example, a component of an internal combustion engine is connected.
  5. Tensioning system according to Claim 4, in which the torsion bar ( 3b ) into a recording ( 33 ) of the machine part ( 21 ), wherein between the torsion bar ( 3b ) and the recording ( 33 ) a compensation element ( 34 ) is provided.
  6. The tensioning system of claim 2, wherein the tubular torsion bar has a partial constriction.
  7. Tensioning system according to Claim 2, in which the torsion bar ( 3b ) on the machine part ( 21 ) directed end a radially stepped portion ( 32 ).
  8. Clamping system according to claim 1, wherein the pivot lever ( 2 ) by means of a conically shaped bearing bush ( 14 ) in the housing ( 11 ) is stored.
  9. Clamping system according to Claim 8, in which the conical bearing bush designed as a friction cone ( 14 ) simultaneously the function of a damping unit ( 24a ) takes over.
  10. Clamping system according to claim 9, wherein the bearing bush ( 14 ) in an adjusting movement of the pivot lever ( 2 ) a relative movement relative to the housing ( 11 ) and in addition the bearing bush ( 14 ) with the hub ( 7 ) of the pivoting lever ( 2 ) connected is.
  11. Clamping system according to claim 1, the damping unit ( 24b ) an axial friction disc ( 25 ) and the hub ( 7 ) of the pivoting lever ( 2 ) via a cylindrically shaped plain bearing ( 28 ) in the housing ( 11 ) of the clamping system ( 1b ) is stored.
  12. Clamping system according to claim 1, which is a compression spring as spring means ( 17 ), which has an axial force on the damping unit ( 24a . 24b ), wherein the compression spring ( 17 ) between one on the torsion bar ( 3a . 3b ) fixed stop sleeve ( 18 ) and the housing ( 11 ) of the clamping system ( 1a . 1b ) is used.
  13. Clamping system according to claim 1, whose housing ( 11 ) with a leadership approach ( 35 ) in a stepped bore ( 36 ) of the machine part ( 21 ) is centered and in the installation position the housing ( 11 ) by means of a screw detachably on the machine part ( 21 ) is attached and to the housing ( 11 ) a mounting flange ( 22 ) with at least one bore ( 23 ) for receiving the screw.
  14. Tensioning system according to claim 1, wherein the hub ( 7 ) of the pivoting lever ( 2 ) designed as a polygonal profile, intended for a tool tool holder ( 38 ), with which the pivot lever ( 2 ) opposite the torsion bar ( 3a ) is adjustable or adjustable between an assembly and an operating position.
  15. Tensioning system according to Claim 14, in which by means of pinning ( 37 ) the pivot lever ( 2 ) in the mounting position relative to the housing ( 11 ) is positionally positioned.
DE2003128900 2003-06-26 2003-06-26 Clamping system with a Drechstab as spring means Withdrawn DE10328900A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003128900 DE10328900A1 (en) 2003-06-26 2003-06-26 Clamping system with a Drechstab as spring means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003128900 DE10328900A1 (en) 2003-06-26 2003-06-26 Clamping system with a Drechstab as spring means
FR0406908A FR2856767B1 (en) 2003-06-26 2004-06-24 Torsion bar tensioner for a traction means of a training through a traction means

Publications (1)

Publication Number Publication Date
DE10328900A1 true DE10328900A1 (en) 2005-01-13

Family

ID=33515090

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003128900 Withdrawn DE10328900A1 (en) 2003-06-26 2003-06-26 Clamping system with a Drechstab as spring means

Country Status (2)

Country Link
DE (1) DE10328900A1 (en)
FR (1) FR2856767B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004309A1 (en) * 2005-01-31 2006-09-21 Schaeffler Kg Mechanically damped tensile chain tensioner for flexible drive of combustion engines has friction lining, whose both sides serve as friction surface whereby one of the sides is greased and other side is free of grease
DE102005017038A1 (en) * 2005-04-13 2006-10-19 Schaeffler Kg Traction drive, in particular belt drive for ancillaries of an internal combustion engine
DE102007016007A1 (en) 2007-04-03 2008-10-09 Schaeffler Kg Automatic clamping system for use in internal combustion engine of motor vehicle, has spreading unit formed as auxiliary aid arranged between housing part and arm that is spaced in mounting position opposite to part
DE102007020738A1 (en) 2007-05-03 2008-11-06 Schaeffler Kg Belt drive clamping device for internal combustion engine of motor vehicle, has integrated multi-functional part arranged in housing part, and damper designed as frictional damper with frictional partners
DE102008046425A1 (en) 2008-09-09 2010-03-11 Schaeffler Kg Automatic traction mechanism clamping device i.e. mechanical belt tension adjuster, for belt drive of internal combustion engine of motor vehicle, has damping unit with friction ring that cooperates with disk spring element i.e. ring shell
DE102009007011A1 (en) 2009-01-31 2010-08-05 Schaeffler Technologies Gmbh & Co. Kg Clamping device for e.g. belt of traction drive for internal combustion engine for powering water pump, has surface region with increased surface roughness for improving radiation of heat emerging in damping element
DE102015111931A1 (en) * 2015-07-22 2017-01-26 Volkswagen Aktiengesellschaft Subframe for an internal combustion engine of a motor vehicle, and internal combustion engine with such a subframe

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
FR2931917A3 (en) * 2008-06-02 2009-12-04 Renault Sas Belt guiding and tensioning device for driving e.g. equipment of driving heat engine of motor vehicle, has idler pulley pivotably connected to axle on member, and roller pulley pivotably mounted on another member
US20150369346A1 (en) * 2014-06-24 2015-12-24 The Gates Corporation Tensioner With Overmolded Pivot Arm

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT22345T (en) * 1983-01-25 1986-10-15 Caoutchouc Manuf Plastique Belt or chain adjuster for transmission.
DE3912944A1 (en) * 1989-03-15 1990-09-20 Muhr & Bender Tensioning device for vehicle drive belts - consists of hexagonal sectioned torsion bar, with lever and roller or disc
DE4001689C1 (en) * 1990-01-22 1991-09-05 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Tensioner for belt drive - has tension roller on lever with spiral torsion spring linked to housing
DE68901765T2 (en) * 1988-12-05 1992-12-24 Caoutchouc Manuf Plastique Tensioner reel for a rear drive.
DE4428560A1 (en) * 1994-08-12 1996-02-15 Schaeffler Waelzlager Kg Tensioning device with lamellar form plane bearing ring
DE4431801A1 (en) * 1994-09-07 1996-03-14 Schaeffler Waelzlager Kg Belt, chain etc tensioner with direction dependent damping

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910828A1 (en) * 1999-03-11 2000-09-14 Schaeffler Waelzlager Ohg Tensioning device for traction devices
CA2369327A1 (en) * 2001-07-27 2003-01-27 Unitta Company Autotensioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT22345T (en) * 1983-01-25 1986-10-15 Caoutchouc Manuf Plastique Belt or chain adjuster for transmission.
DE68901765T2 (en) * 1988-12-05 1992-12-24 Caoutchouc Manuf Plastique Tensioner reel for a rear drive.
DE3912944A1 (en) * 1989-03-15 1990-09-20 Muhr & Bender Tensioning device for vehicle drive belts - consists of hexagonal sectioned torsion bar, with lever and roller or disc
DE4001689C1 (en) * 1990-01-22 1991-09-05 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Tensioner for belt drive - has tension roller on lever with spiral torsion spring linked to housing
DE4428560A1 (en) * 1994-08-12 1996-02-15 Schaeffler Waelzlager Kg Tensioning device with lamellar form plane bearing ring
DE4431801A1 (en) * 1994-09-07 1996-03-14 Schaeffler Waelzlager Kg Belt, chain etc tensioner with direction dependent damping

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004309A1 (en) * 2005-01-31 2006-09-21 Schaeffler Kg Mechanically damped tensile chain tensioner for flexible drive of combustion engines has friction lining, whose both sides serve as friction surface whereby one of the sides is greased and other side is free of grease
DE102005004309B4 (en) * 2005-01-31 2013-11-28 Schaeffler Technologies AG & Co. KG Zugmittelspanner with mechanical damping
WO2006108461A1 (en) * 2005-04-13 2006-10-19 Schaeffler Kg Traction mechanism drive, especially belt drive for secondary units of a combustion engine
DE102005017038A1 (en) * 2005-04-13 2006-10-19 Schaeffler Kg Traction drive, in particular belt drive for ancillaries of an internal combustion engine
DE102007016007A1 (en) 2007-04-03 2008-10-09 Schaeffler Kg Automatic clamping system for use in internal combustion engine of motor vehicle, has spreading unit formed as auxiliary aid arranged between housing part and arm that is spaced in mounting position opposite to part
DE102007020738A1 (en) 2007-05-03 2008-11-06 Schaeffler Kg Belt drive clamping device for internal combustion engine of motor vehicle, has integrated multi-functional part arranged in housing part, and damper designed as frictional damper with frictional partners
DE102008046425A1 (en) 2008-09-09 2010-03-11 Schaeffler Kg Automatic traction mechanism clamping device i.e. mechanical belt tension adjuster, for belt drive of internal combustion engine of motor vehicle, has damping unit with friction ring that cooperates with disk spring element i.e. ring shell
DE102009007011A1 (en) 2009-01-31 2010-08-05 Schaeffler Technologies Gmbh & Co. Kg Clamping device for e.g. belt of traction drive for internal combustion engine for powering water pump, has surface region with increased surface roughness for improving radiation of heat emerging in damping element
DE102015111931A1 (en) * 2015-07-22 2017-01-26 Volkswagen Aktiengesellschaft Subframe for an internal combustion engine of a motor vehicle, and internal combustion engine with such a subframe

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FR2856767B1 (en) 2006-01-27
FR2856767A1 (en) 2004-12-31

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