WO1996010140A1 - Amortisseur de torsion pour un embrayage de verrouillage, notamment pour vehicule automobile - Google Patents
Amortisseur de torsion pour un embrayage de verrouillage, notamment pour vehicule automobile Download PDFInfo
- Publication number
- WO1996010140A1 WO1996010140A1 PCT/FR1995/001248 FR9501248W WO9610140A1 WO 1996010140 A1 WO1996010140 A1 WO 1996010140A1 FR 9501248 W FR9501248 W FR 9501248W WO 9610140 A1 WO9610140 A1 WO 9610140A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- web
- springs
- tabs
- torsional damper
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000001970 hydrokinetic effect Effects 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/13142—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by the method of assembly, production or treatment
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/13164—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by the supporting arrangement of the damper unit
-
- 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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
-
- 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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0294—Single disk type lock-up clutch, i.e. using a single disc engaged between friction members
Definitions
- Torsional damper for a locking clutch especially for a motor vehicle
- the present invention relates to a torsional damper for a locking clutch capable of intervening between the driving element and the driven element of a hydrokinetic coupling device, in particular for a motor vehicle.
- the torsion damper comprises an inlet part, called the first part, an outlet part, called the second outlet, and springs interposed circumferentially between the inlet and outlet parts to couple them in rotation.
- Such a clutch is for example described and shown in documents US-A-4,875,562 and in the international patent application WO / FR93 / 00936 (WO94 / 07058).
- the piston is shaped to constitute the entry part of the torsion damper and it carries a clean friction lining to come into contact with the transverse wall of the housing of the hydrokinetic device, this wall constituting the counter-piston.
- the housing belongs to a sealed casing filled with oil and is suitable for being linked in rotation to a driving shaft.
- the outlet part of the shock absorber is integral with the turbine wheel of the hydrokinetic device.
- the turbine wheel is secured to a hub capable of being linked in rotation to a driven shaft.
- the casing constitutes a driving element while the hub of the turbine wheel constitutes a driven element and the locking clutch is suitable for intervening between the casing and the turbine wheel to effect a bridging between them.
- the torsional damper comprises the piston externally retaining the springs (or elastic members), as well as a guide washer carried by fixing, in this case by riveting, by the piston and which internally retains the springs thanks to retaining tabs.
- the piston and the guide washer have support legs to act on the circumferential ends of the springs.
- the piston also has, at its outer periphery, a cylindrical annular skirt.
- the inlet part is thus made up of two parts, while the outlet part comprises an annular web which is integral with the turbine wheel.
- the outlet veil has support legs, which penetrate between the circumferential ends of two consecutive springs to act on the latter.
- the torsion damper comprises two parts, the guide washer being fixed on the piston. This guide washer and the web have holding parts for retaining the springs externally and internally respectively.
- the web and the guide washer have support legs for action on the circumferential ends of the springs.
- means are provided for initially retaining the web axially inside the first part and allowing relative angular movement between the two parts of the damper, which comprise a series of latching tabs of the guide ring of the first part folded radially inwards towards the axis of the damper and which cooperate with the edge of a cylindrical annular peripheral edge of the web of the second part.
- the present invention aims to propose a new design of a torsion damper comprising, in a simple and economical manner, improved means of axial retention of the web of the second part of the shock absorber relative to the first part of the latter.
- the invention provides a torsion damper of the type mentioned above, characterized in that the annular peripheral edge of the web has a series of notches distributed angularly like the legs of the first part and dimensioned so as to allow 1 ' axial insertion of the tabs in the notches then the axial retention of the second part inside the first part by relative rotation of these two parts by a fraction of a turn, in the manner of an assembly of the bayonet type and in that said tabs are formed in a cylindrical annular skirt that has the piston at its outer periphery.
- the guide washer is simplified and the mounting effort is reduced since there is no temporary deformation of the tabs.
- the guide washer - piston assembly is very rigid. According to other characteristics of the invention:
- the legs and the notches are arranged in series of pairs of adjacent legs and notches; the piston externally retains the springs and thus belongs to the torsion damper. Thanks to this, it is possible to make punctures in the web in advance for support of the springs and the guide washer is further simplified.
- the web has openings to allow, in the end, the fixing by riveting of the guide washer to the piston and the formation of a sub-assembly.
- FIG. 2 is a partial sectional view along line 2-2 of Figure 1;
- FIG. 3 is a perspective view of a detail on a larger scale illustrating the design of the web retaining tabs.
- the housing 10 of annular shape, comprises an end wall 14, generally of transverse orientation, in the form of a disc and a cylindrical annular skirt 16, generally of axial orientation, extending at the external periphery of the wall 14 .
- the wall 14 is intended to be connected to an input shaft or driving shaft, while the skirt 16 is intended to be fixed to the outer edge of an impeller
- a turbine wheel 18 of the converter which is provided for be attached to an output shaft or driven shaft.
- the converter also includes a reaction wheel (not visible).
- the torsional damper 12 is disposed between the wall 14 of the housing 10 and the turbine wheel 18 and comprises a first part 20, forming an inlet part, and a second part 22, forming an outlet part, coaxial capable of turning l relative to each other against elastic members with circumferential action, here precurved coil springs 30, and to move axially relative to each other.
- the springs 30 are located at the outer periphery of the housing 10 and of the turbine wheel 18.
- the first part 20 consists essentially of a piston 24 in the form of an annular disc which extends adjacent to the wall 14 of the housing 10 and which is extended at its external periphery by a cylindrical annular skirt 26 of axial orientation.
- the piston 24 On its outer face, facing the wall 14, the piston 24 carries a friction lining 60 for fixing intended to be tightened against the wall 14.
- the lining 60 may be integral with the wall 14.
- the piston 24 On its inner face, facing the turbine wheel 18, the piston 24 is equipped with a washer 28 for guiding the springs 30, which is fixed to it by a series of rivets 32 distributed circumferentially.
- the washer 28 has arrangements 34 or parts 34 for supporting the circumferential ends of the springs 30.
- the second part 22 of the torsion damper 12 is essentially constituted by a veil in the form of an annular disc 36, which also comprises parts 38 serving to support the circumferential ends of the springs 30.
- the web 36 extends at its outer periphery towards the wheel 18, in the direction opposite to the piston 24, by an annular cylindrical annular edge 40, which, like the skirt 26 of the piston 24, is of axial orientation and which is received in sliding inside the latter.
- the cylindrical annular edge 40 ends in an annular end edge 42.
- the piston 24 is thicker than the guide washer 28 and than the web 36.
- the guide washer 28, here metallic has at its outer periphery parts 34 with a U-shaped section inserted between two consecutive springs 30.
- the circumferential ends of the springs 30 bear, possibly indirectly by means of support cups, on the edge of the parts 34 directed axially towards the turbine wheel 18 and the web 36.
- Two support legs are thus defined, axially oriented, by part 34, one, longer, serving for the external support of the springs 30, the other shorter axially, for the internal support of the springs 30.
- This short tab is obtained by cutting and folding from the guide washer 28.
- the long tab is slidably received inside the skirt 26.
- the web 36, here metallic has the aforementioned parts 38 penetrating radially between the legs of the parts 34. More specifically, the support parts 38 of the ends of the springs 30 are formed by means of support punctures of sinuous shape extending at the outer periphery of the web 36 shaped to internally retain the springs 30.
- This external periphery with support punctures 38 has here the shape of a half-shell or half-toric for internally retaining the springs 30. It is extended at its external periphery by the annular edge 40 projecting axially in the direction of the turbine wheel 18 .
- the piston 24, here metallic, thanks to its skirt 26 makes it possible to retain the springs 30 on the outside.
- This skirt 26 surrounds the web 36, which extends radially inwards by a flange, generally of axial orientation, provided at its periphery internal of a hub for its connection in rotation with the hub of the turbine wheel as described in document O94 / 07058.
- the axial retention of the second part 22 of the torsion damper 12 inside the first part 20 is ensured by means of a series of pairs of retaining lugs 44 produced integrally by cutting and folding in the thinned free end portion 46 of the cylindrical annular skirt 26 of the piston 24.
- the retaining lugs 44 folded in advance radially inward are six in number arranged in three pairs of adjacent lugs and angularly distributed by evenly in pairs as you can see in Figure 1.
- the annular peripheral edge 40 of the latter has three series of introduction notches arranged in pairs 48.
- the insertion notches 48 are distributed regularly in the same manner as the retaining tabs 46 and they are dimensioned circumferentially so as to allow the passage of the tabs 44 in the notches 48 to bring the annular edge 42 of the peripheral edge 40 of the web 36 set back from the radial plane delimited by the internal face 50 of the retaining lugs 44, then to allow, according to the invention, a relative rotation of the two parts 20 and 22 to bring, as illustrated in FIGS. 1 and 2, the lugs retaining 44 radially oriented opposite the parts of the edge 42 having no notches 48.
- the notches 48 are wider circumferentially than the tabs 44 for easy mounting. They are easily obtained by stamping or cutting.
- the arrangement and sizing of the retaining lugs 44 and of the notches 48 thus make it possible to carry out the mounting of the bayonet type allowing the assembly of the first and second parts 20 and 22 of the torsion damper 12 without causing elastic deformation of the legs and this with a reduced mounting effort.
- the guide washer 28 has at its internal periphery lugs 128 for fixing directed towards the axis of the assembly and the piston 36 has opposite legs 128 of the circumferential openings 228 longer.
- the guide washer 28 can be riveted to the piston 24, three rivets 32 being provided by lugs 128. Thanks to this, a piston 24 - washer 28 assembly is produced.
- the springs 30 are placed on the arrangements 34 of the guide washer 28, then the punctures 38 of the web 36 are mounted between the circumferential ends of the springs 30, then the guide washer 28 - springs 30 - web assembly is mounted. 36 in the piston 24 by engaging the lugs 44 in the notches 48, finally the guide washer 28 - sail 36 assembly is rotated to rivet the washer 28 in 32 on the piston 24 by means of the lugs 128 and the openings 228 correspondents.
- tabs 44 can be folded in advance hot or cold. It is evident from the description and the drawings that the openings 228 ultimately allow the fixing of the guide washer 28 and the formation of the aforementioned sub-assembly.
- the circumferential distance between the tabs 44 and the notches 48 depends on the applications, in particular the relative angular movement between the web 36 and the piston 24.
- the punctures 38 of the web 36 can be produced in advance and the guide washer 28 is simplified.
- the piston 24 can move axially under the effect of the difference in hydraulic pressure prevailing on either side of its faces.
- the friction lining 60 can be clamped or not between the wall 14 and the piston 24.
- the locking clutch comprising the piston 24 and the damper 12
- the locking clutch is locked with a rotational connection between the housing 10 and the hub of the turbine wheel 18 to limit slippage.
- the invention is of course not limited to the embodiment which has just been described.
- the invention also encompasses all the embodiments of the type making it possible to provide an axial connection of the bayonet type, that is to say the fractional turn locking systems.
- the internal periphery of the guide washer 28 can be continuous and not be divided into lugs 128.
- the washer 28 therefore has a fixing zone at its internal periphery.
- the free end 46 of the skirt 26 of the piston 24 may be of constant thickness, the lugs 44 having the same thickness as said skirt 26, depending on the applications.
- the guide washer 28 can externally retain the springs 30 as in document WO 94/07058, but this complicates its manufacture.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51145096A JP3721476B2 (ja) | 1994-09-28 | 1995-09-28 | ロッキングクラッチ用トーションダンピング装置、特に自動車用のロッキングクラッチ用トーションダンピング装置 |
DE19581290T DE19581290B4 (de) | 1994-09-28 | 1995-09-28 | Torsionsdämpfer für eine verriegelbare Kupplung, insbesondere für Kraftfahrzeuge |
KR1019960702769A KR100346600B1 (ko) | 1994-09-28 | 1995-09-28 | 자동차의로킹클러치용토션댐핑장치 |
US08/649,690 US5755312A (en) | 1994-09-28 | 1995-09-28 | Torsion damping device for a locking clutch, especially for a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9411702A FR2725002B1 (fr) | 1994-09-28 | 1994-09-28 | Amortisseur de torsion pour un embrayage de verrouillage, notamment pour vehicule automobile |
FR94/11702 | 1994-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996010140A1 true WO1996010140A1 (fr) | 1996-04-04 |
Family
ID=9467452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1995/001248 WO1996010140A1 (fr) | 1994-09-28 | 1995-09-28 | Amortisseur de torsion pour un embrayage de verrouillage, notamment pour vehicule automobile |
Country Status (6)
Country | Link |
---|---|
US (1) | US5755312A (fr) |
JP (1) | JP3721476B2 (fr) |
KR (1) | KR100346600B1 (fr) |
DE (1) | DE19581290B4 (fr) |
FR (1) | FR2725002B1 (fr) |
WO (1) | WO1996010140A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2902164B1 (fr) * | 2006-06-08 | 2010-07-30 | Valeo Embrayages | Double volant amortisseur, en particulier pour vehicule automobile |
DE102008031955B4 (de) * | 2007-07-31 | 2018-12-20 | Schaeffler Technologies AG & Co. KG | Drehmomentwandler mit vom Kolben zentrierter Kupplungsplatte |
FR3052518B1 (fr) * | 2016-06-09 | 2018-06-08 | Valeo Embrayages | Dispositif d'amortissement |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2255395A (en) * | 1991-05-02 | 1992-11-04 | Luk Lamellen & Kupplungsbau | Hydraulic transmission with torsion damper |
EP0533426A2 (fr) * | 1991-09-20 | 1993-03-24 | Toyota Jidosha Kabushiki Kaisha | Transmission hydraulique de puissance avec embrayage de pontage |
WO1994007058A1 (fr) * | 1992-09-24 | 1994-03-31 | Valeo | Amortisseur de torsion pour embrayage de verrouillage et embrayage de verrouillage comportant un tel amortisseur de torsion |
DE4242255A1 (de) * | 1992-12-15 | 1994-06-16 | Fichtel & Sachs Ag | Membranfederkupplung mit Befestigung der Membranfeder durch Bajonettverschluß |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4445599A (en) * | 1981-10-27 | 1984-05-01 | Eaton Corporation | Cooling means for torque converter bypass |
JPH0624604Y2 (ja) * | 1987-02-16 | 1994-06-29 | 株式会社大金製作所 | トルクコンバ−タ−用ロツクアツプダンパ− |
KR950008208A (ko) * | 1993-09-23 | 1995-04-17 | 그레그 지질레워스키 | 비틀림 댐퍼 |
-
1994
- 1994-09-28 FR FR9411702A patent/FR2725002B1/fr not_active Expired - Fee Related
-
1995
- 1995-09-28 WO PCT/FR1995/001248 patent/WO1996010140A1/fr active Application Filing
- 1995-09-28 JP JP51145096A patent/JP3721476B2/ja not_active Expired - Fee Related
- 1995-09-28 KR KR1019960702769A patent/KR100346600B1/ko not_active Expired - Fee Related
- 1995-09-28 DE DE19581290T patent/DE19581290B4/de not_active Expired - Fee Related
- 1995-09-28 US US08/649,690 patent/US5755312A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2255395A (en) * | 1991-05-02 | 1992-11-04 | Luk Lamellen & Kupplungsbau | Hydraulic transmission with torsion damper |
EP0533426A2 (fr) * | 1991-09-20 | 1993-03-24 | Toyota Jidosha Kabushiki Kaisha | Transmission hydraulique de puissance avec embrayage de pontage |
WO1994007058A1 (fr) * | 1992-09-24 | 1994-03-31 | Valeo | Amortisseur de torsion pour embrayage de verrouillage et embrayage de verrouillage comportant un tel amortisseur de torsion |
DE4242255A1 (de) * | 1992-12-15 | 1994-06-16 | Fichtel & Sachs Ag | Membranfederkupplung mit Befestigung der Membranfeder durch Bajonettverschluß |
Also Published As
Publication number | Publication date |
---|---|
DE19581290B4 (de) | 2007-03-29 |
KR960706037A (ko) | 1996-11-08 |
US5755312A (en) | 1998-05-26 |
JPH09510004A (ja) | 1997-10-07 |
FR2725002B1 (fr) | 1996-12-13 |
FR2725002A1 (fr) | 1996-03-29 |
DE19581290T1 (de) | 1997-01-02 |
KR100346600B1 (ko) | 2002-11-23 |
JP3721476B2 (ja) | 2005-11-30 |
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