GB2165336A - Clutch plate for a motor vehicle friction clutch - Google Patents
Clutch plate for a motor vehicle friction clutch Download PDFInfo
- Publication number
- GB2165336A GB2165336A GB08524502A GB8524502A GB2165336A GB 2165336 A GB2165336 A GB 2165336A GB 08524502 A GB08524502 A GB 08524502A GB 8524502 A GB8524502 A GB 8524502A GB 2165336 A GB2165336 A GB 2165336A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hub
- axially
- friction
- side plates
- clutch
- 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
Links
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
- F16F15/129—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 characterised by friction-damping means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The clutch plate for a motor vehicle friction clutch comprises a hub (1) on which, through complementary profiling systems (41, 43) a hub plate (7) is rotationally rigidly but axially displaceably mounted. Rotatably guided on the hub (1) is a friction lining carrier having, connected to form one unit, two side plates (9, 11) disposed axially on either side of the hub plate (7). The side plates (9, 11) are axially fixed on axial guide faces (45, 47) of the hub (1) directly or through friction rings (29, 37) of a friction damper (27). The friction linings (29, 37) furthermore also secure the hub plate (7). The hub plate (7) can be constituted by two separate plates between which it is possible to dispose the axially acting spring of the friction damper (27). <IMAGE>
Description
SPECIFICATION
Clutch plate for a motor vehicle friction clutch
The invention relates to a clutch plate for a motor vehicle friction clutch having the features in the preamble to Patent Claim 1.
German OS's Nos. 21 59 263, 21 59 264 and 24 61 566 disclose clutch plates for motor vehicle friction clutches, in which an annularly disc-shaped hub plate provided with a system of teeth on its inner periphery is pushed onto a hub part which has to be coupled to the gearbox input shaft. The toothed profile works itself into the hub part by a metal removing or material flow process and couples the hub plate in form locking fashion to the hub part. The hub part is caulked for axial fitment of the hub plate. The torque which can be transmitted by such a clutch plate is too small for a number of applications since the coupling connection of the hub plate and hub part does not permit of an exact and heavy duty form-locking connection.
DOS 22 20 657 discloses a further clutch plate for a motor vehicle friction clutch in which the hub plate and the hub part which has to be coupled to the gearbox input shaft fit one into the other by means of complementary polygonal profiles and are rotationally rigidly coupled to each other by these polygonal profiles. For axial fixing, the hub part has an annular shoulder against which the hub plate bears.
Caulking points on the corners of the polygon on the polygonal profile of the hub part enclose the hub plate between them and the annular shoulder. Producing such a profile with an axially adjacent annular shoulder is comparatively complicated and calls for the hub parts to be of comparatively large outside diameter.
The object of the invention is to indicate a clutch plate for a motor vehicle friction clutch in which the hub plate which has to be produced separately from the hub which has to be coupled to the gearbox input shaft is produced easily from relatively thin flat material, being in particular stamped and in which the hub does not have to be caulked or pressed in order to secure the hub plate. Nevertheless, it is intended to ensure that the clutch plate be able to transmit comparatively high torques.
In the case of a clutch plate having the features set out in the preamble to Patent Claim 1, this problem is resolved by the features indicated in the characterising part.
The hub plate part and the hub part which has to be coupled to the gearbox input shaft are form-lockingly and in rotationally rigid fashion coupled together via prefabricated complementary profilings, in particular toothed systems. The inner profiling of the hub plate part can be formed at the same time as the hub plate part is stamped out of flat material.
The peripherally directed flanks of the profiling, preferably constructed as a system of teeth, can without problem be so designed that high levels of torque can also be transmitted. The hub plate part is axially displaceable on the profiling of the hub part and is axially fixed in relation to the hub part solely by two side plates disposed one either side of the hub plate part and connected to each other to form one unit. The side plates bear on two axial guide shoulders which point in opposite directions and which are disposed preferably between the two side plates. In this respect, the side plates can according to the construction of the friction dampers of the clutch plate rest on the guide shoulders directly or through friction rings of the friction damper.On account of the greater ease of manufacture, the profiling of the hub part extends in an axial direction, preferably over the entire axial distance between the two guide shoulders.
In a preferred embodiment, the hub plate part may be constituted by a plurality of axially adjacently disposed plates, each of which is coupled in rotationally rigid fashion to the hub part via its profiling. The axially acting spring of the friction damper is expediently disposed between these plates so that the plates can at the same time be used as thrust plates for the friction damper.
Examples of embodiment of the invention will be explained in greater detail hereinafter with reference to the accompanying drawings, in which:
Fig. 1 is an axial longitudinal section through a clutch plate for a motor vehicle friction clutch, and
Figs. 2 and 3 show alternative embodiments of the clutch plate.
The clutch plate shown in Fig. 1 and intended for a motor vehicle friction clutch comprises a hub part 1 adapted to be coupled by an internal toothed system 3 in rotationally rigid but axially displaceable fashion to a gearbox input shaft, not shown, rotating about an axis of rotation 5. An annularly disc-shaped hub plate part 7 is rotationally rigidly fixed on the hub part 1 in a manner which is described in greater detail hereinafter. Disposed axially on either side of the hub plate part 7 are substantially annularly disc-shaped side plates 9, 11 which are connected rigidly to one another by a plurality of peripherally staggered spacing rivets 13 to form one unit. The side plate unit is rotatably mounted on the hub part 1 via at least one of the two plates, for example the side plate 9.The spacing rivets 13 fit in recesses 15 of the hub plate part 7 and define the relative angle of rotation. Fixed in conventional manner on the side plate 9 are clutch friction linings 17.
To damp torsional vibration, springing coil thrust springs 25 are disposed in mutually as sociated windows 19, 21, 23 of the hub plate part 7 or side plates 9, 11 in the peripheral direction of the clutch plate, the said springs 25 being stressed upon rotation of the side plate 9, 11 in relation to the hub plate part 7 and damping the rotary vibration.
Radially within the diameter on which the damping springs 25 are disposed, there are a plurality of friction dampers of which only the friction damper dimensioned for idling operation is shown at 27. The friction damper 27 can alternatively also be dimensioned for operation under load. It has axially between the side plate 9 and the hub plate part 7 a friction ring 29 enclosing the hub part 1 and, axially between the side plate 11 and the hub plate part 7, an axially acting spring 31, in the present case a plate spring. Axially between the plate spring 31 and the hub plate part 7 there is a thrust ring plate 35 coupled through projections 33 in rotationally rigid but axially displaceable fashion to the side plate 11. Axially between the thrust ring plate 35 and the hub plate part 7 is a further friction ring 37 of the friction damper 27.Since the side plate unit is mounted for axial movement on the hub part 1, the spring 31 tensions the hub plate part 7 between the two friction rings 29, 37. Upon relative rotation of the side plates 9, 11 and of the hub plate part 7, a friction torque is in this way generated.
For rotationally rigid fitment of the hub plate part 7 on the hub part 1, the hub part 1 is provided with a peripherally toothed annular flange 39, the toothed system 41 of which engages in form-locking fashion a completementary toothed system 43 on the inner periphery of the hub plate part 7. The toothed systems 41, 43 couple the hub plate part 7 in rotationally rigid but axially displaceable fashion to the hub part 1. The annular flange 39 forms, pointing towards the friction rings 29, 37, axially outwardly pointing guide faces 45, 47 which fix the hub part 1 axially through the friction rings 29, 37 and in relation to the hub plate part 7. An additional axial fixing of the hub plate part 7 in relation to the hub part 1, for instance by caulking, is not envisaged.The toothed system 39 extends, from the point of view of easier production, over the entire axial distance between the two guide faces 45, 47.
Fig. 2 shows an axial longitudinal section through a part of another clutch plate. Parts of this clutch plate which function in identical manner to those in Fig. 1 are identified by the same reference numerals which are additionally given the suffix a. For more detailed explanation, reference is made to the description relative to Fig. 1. The clutch plate in Fig. 2 likewise comprises a torsion spring damper not shown in greater detail but similar to the elements 19 to 25 in Fig. 1.
In contrast to the clutch plate in Fig. 1, the side plates 9a and 1 1a do not bear on the axially outwardly directed guide faces 45a and 47a of the annular flange 39a through the friction plates 29a and 37a, but are guided directly on the guide faces 45a, 47a. Also in this embodiment, the toothed system 41a of the hub part 1a extends over the entire axial distance between the guide faces 45a, 47a.
Fig. 3 shows an axial longitudinal section through a part of a further clutch plate for a motor vehicle friction clutch. Parts corresponding to one another are shown in Fig. 3 with the reference numerals used in Fig. 1 to which the suffix b is added. By way of explanation, reference is made to the description given in relation to Fig. 1. Also the clutch plate in Fig.
3 comprises a torsion spring damper not shown in greater detail but corresponding to the parts 19 to 25 in Fig. 1.
In contrast to the two previously explained clutch plates, there is mounted on the toothed annular flange 39b of the hub part 1b, axially laterally of the hub plate part 7b, a second substantially annularly disc-shaped hub plate part 51 which has on its inner periphery a toothed system 53 complementary to the toothed system 41b and rotationally rigidly but axially displaceably coupled to the hub part 1b. The spacing rivets 13b pass through the apertures 55 which correspond to the apertures 15b.
The friction damper 27b which preferably forms the neutral damper comprising two friction rings 29b and 37b, of which one is seated in frictionally locked fashion between the hub plate part 7b and the side plate 9b while the other is frictionally locked between the hub plate part 51 and the side plate 1 1b.
The axially acting spring 31b which is in particular a plate spring, is axially clamped between the two hub plate parts 7b and 51. In this embodiment, the hub plate parts 7b, 51 assume the function of thrust plates.
In the example of embodiment shown in Fig.
3, the friction plates 29b and 37b, similarly to the embodiment shown in Fig. 1, extend into the region of the two axial guide shoulders 45b and 47b, so that the side plates 9b,1 1b are axially fixed on the hub part 1 b via the friction rings 29b and 37b. Similarly to the example of embodiment shown in Fig. 2, the side plates 9b and 11 b can also bear directly on the axial guide faces 45b, 47b of the hub part 1b. The toothed system 41b extends over the entire axial distance between the two guide faces 45b and 47b.
In all the previous explained forms of embodiment, the hub plate parts are preferably constructed as stamped sheet metal parts.
Claims (10)
1. Clutch plate for a motor vehicle friction clutch comprising
a) a hub part (1) provided on its outer periphery with a profiling (41),
b) a substantially annularly disc-shaped hub flange part (7; 51) which equiaxially encloses the hub part (1) to which it is rotationally rigidly coupled via the profiling (43),
c) two substantially annularly disc-shaped side plates (9, 11) enclosing the hub part (1) and disposed on axially opposite sides of the hub flange part (7; 51) and connected rigidly to each other to form a unit mounted on the hub part (1) and rotatable through a limited angle of rotation in relation to the hub part (1) and the hub flange part (7; 51),
d) at least one torsion oscillation damper having at least one damping spring (25) which can be resiliently loaded upon relative rotation of the side plates (9, 11) and the hub flange part (7; 51),
e) at least one friction damper (27), of which the axially resilient friction means fixes the side disc unit (9, 11) and the hub flange part (7; 51) axially on each other,
f) clutch friction linings (17) connected to at least one of the side plates (9), characterised in that the hub part (1) has two guide shoulders (45, 47) pointing axially in opposite directions on which the side plates (, 11) are axially fixed and in that the hub flange part (7; 51) is guided for axial displacement on and relative to the hub part (1).
2. Clutch plate according to Claim 1, characterised in that the guide shoulders (45, 47) are located between the two side plates (9, 11) and point axially outwardly towards the side plates (9, 11).
3. Clutch plate according to Claim 2, characterised in that at least one side plate, preferably both side plates (9a, 1 1a) bear directly on the guide shoulders (45a, 47).
4. Clutch plate according to Claim 2 or 3, characterised in that the friction device has axially between the hub flange part (7) and a first (9) of the two side plates a friction ring (29) and axially between the hub flange part (7) and a second (11) of the two side plates an axially acting spring (31) and in that the friction ring (29) is axially braced on one of the two guide shoulders (45) while the spring (31) is axially braced on the other of the two guide shoulders (47).
5. Clutch plate according to Claim 4, characterised in that axially between the spring (31) and the hub flange part (7) there is a further friction ring (37) and axially between the spring (31) and the further friction ring (37) there is a thrust ring (35) which is rotationally rigid but which is guided for axial displacement on the second side plate (11).
6. Clutch plate according to Claim 1, characterised in that the hub flange part is constituted by two flange plates (7b; 51) displaceable axially in relation to each other and in relation to the hub part (1b), each of the flange plates being rotationally rigidly coupled to the hub part (1b) through a profiling (43b, 53) complementary with the profiling (41b) of the hub part (1b) and in that the friction device has a friction ring (29b, 37b) axially between each of the two side plates (9b, 11 b) and whichever is the adjacent flange plate (7b; 51), and an axially acting spring (31b) disposed axially between the two flange plates (7b; 51).
7. Clutch plate according to Claim 6, characterised in that the guide shoulders (45b, 47b) are located between the two side plates (9b, 11 b) and point axially outwardly towards the side plates (9b, 1 1b) and in that the side plates (9b, 1 1b) are axially fixed on the guide shoulders (45b, 47b) directly or via the two friction rings (29b, 37b).
8. Clutch plate according to Claim 2 or 7, characterised in that the outside diameter of the guide shoulders (45, 47) is equal to or smaller than the outside diameter of the profiling (41) on the hub part (1).
9. Clutch plate according to Claim 8, characterised in that the profiling (41) of the hub part (1) extends over the entire axial distance between the guide shoulders (45, 47).
10. Clutch plate for a motor vehicle friction clutch as claimed in Claim 1, substantially as described herein with reference to and as illustrated by any one of the examples shown in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843436804 DE3436804C2 (en) | 1984-10-06 | 1984-10-06 | Clutch disc for a motor vehicle friction clutch |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8524502D0 GB8524502D0 (en) | 1985-11-06 |
| GB2165336A true GB2165336A (en) | 1986-04-09 |
| GB2165336B GB2165336B (en) | 1987-12-23 |
Family
ID=6247338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08524502A Expired GB2165336B (en) | 1984-10-06 | 1985-10-04 | Clutch plate for a motor vehicle friction clutch |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3436804C2 (en) |
| FR (1) | FR2571456B1 (en) |
| GB (1) | GB2165336B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234322A (en) * | 1989-07-21 | 1991-01-30 | Automotive Products Plc | Friction clutch driven plates |
| GB2292596A (en) * | 1994-08-23 | 1996-02-28 | Fichtel & Sachs Ag | Clutch plate |
| GB2295658A (en) * | 1994-12-02 | 1996-06-05 | Fichtel & Sachs Ag | Friction clutch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2083592A (en) * | 1980-09-10 | 1982-03-24 | Automotive Prod Co Ltd | A friction clutch driven plate |
| GB2093564A (en) * | 1981-02-13 | 1982-09-02 | Daikin Mfg Co Ltd | A clutch disc |
| GB2123925A (en) * | 1982-07-20 | 1984-02-08 | Sachs Systemtechnik Gmbh | Clutch disc for a motor vehicle friction clutch |
| GB2154703A (en) * | 1984-02-23 | 1985-09-11 | Valeo | Torsional damper device |
| GB2154702A (en) * | 1984-02-23 | 1985-09-11 | Valeo | Torsional damper device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB931971A (en) * | 1962-02-15 | 1963-07-24 | Automotive Prod Co Ltd | Improvements in or relating to friction clutch plates |
| DE2159264A1 (en) * | 1971-11-30 | 1973-06-07 | Luk Lamellen & Kupplungsbau | ARRANGEMENT FOR COAXIAL FASTENING OF TWO COMPONENTS |
| DE2159263A1 (en) * | 1971-11-30 | 1973-06-07 | Luk Lamellen & Kupplungsbau | ARRANGEMENT FOR COAXIAL FASTENING OF TWO COMPONENTS |
| DE2220657A1 (en) * | 1972-04-27 | 1973-11-08 | Luk Lamellen & Kupplungsbau | ARRANGEMENT FOR FASTENING TWO COMPONENTS |
| FR2256686A5 (en) * | 1973-12-28 | 1975-07-25 | Ferodo Sa | Disc and hub assembly - wherein disc bore has teeth forced axially through hub material on assembly |
| FR2270491A2 (en) * | 1974-04-12 | 1975-12-05 | Ferodo Sa | Torsion damper for motor vehicle clutches - has vibration absorbing springs in the hub and in the plate |
| FR2386729A1 (en) * | 1977-04-04 | 1978-11-03 | Ferodo Sa | TORSION DAMPER, IN PARTICULAR CLUTCH FRICTION, ESPECIALLY FOR MOTOR VEHICLES |
| US4185728A (en) * | 1977-10-14 | 1980-01-29 | Borg-Warner Corporation | Clutch disc with variable deflection rate vibration damper |
| FR2496210A1 (en) * | 1980-12-16 | 1982-06-18 | Valeo | TORSION DAMPER DEVICE, IN PARTICULAR FOR A CLUTCH FRICTION DISC OF A MOTOR VEHICLE |
| JPS6145375Y2 (en) * | 1981-02-19 | 1986-12-20 | ||
| JPS59125393A (en) * | 1983-01-06 | 1984-07-19 | Matsushita Electric Ind Co Ltd | Safety device of latent heat accumulator |
-
1984
- 1984-10-06 DE DE19843436804 patent/DE3436804C2/en not_active Expired - Fee Related
-
1985
- 1985-10-03 FR FR8515149A patent/FR2571456B1/en not_active Expired - Lifetime
- 1985-10-04 GB GB08524502A patent/GB2165336B/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2083592A (en) * | 1980-09-10 | 1982-03-24 | Automotive Prod Co Ltd | A friction clutch driven plate |
| GB2093564A (en) * | 1981-02-13 | 1982-09-02 | Daikin Mfg Co Ltd | A clutch disc |
| GB2123925A (en) * | 1982-07-20 | 1984-02-08 | Sachs Systemtechnik Gmbh | Clutch disc for a motor vehicle friction clutch |
| GB2154703A (en) * | 1984-02-23 | 1985-09-11 | Valeo | Torsional damper device |
| GB2154702A (en) * | 1984-02-23 | 1985-09-11 | Valeo | Torsional damper device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234322A (en) * | 1989-07-21 | 1991-01-30 | Automotive Products Plc | Friction clutch driven plates |
| GB2234322B (en) * | 1989-07-21 | 1993-07-07 | Automotive Products Plc | Friction clutch driven plates |
| GB2292596A (en) * | 1994-08-23 | 1996-02-28 | Fichtel & Sachs Ag | Clutch plate |
| JPH0874881A (en) * | 1994-08-23 | 1996-03-19 | Fichtel & Sachs Ag | Clutch disc for friction clutch |
| US5617939A (en) * | 1994-08-23 | 1997-04-08 | Fichtel & Sachs Ag | Friction clutch assembly for a motor vehicle, the friction clutch assembly having a clutch plate with divided hub disc |
| GB2292596B (en) * | 1994-08-23 | 1998-05-06 | Fichtel & Sachs Ag | Clutch plate |
| GB2295658A (en) * | 1994-12-02 | 1996-06-05 | Fichtel & Sachs Ag | Friction clutch |
| US5673778A (en) * | 1994-12-02 | 1997-10-07 | Fichtel & Sachs Ag | Clutch disc with torsional vibration damper |
| GB2295658B (en) * | 1994-12-02 | 1998-07-01 | Fichtel & Sachs Ag | Friction clutch |
| ES2129298A1 (en) * | 1994-12-02 | 1999-06-01 | Fichtel & Sachs Ag | Clutch disc with torsional vibration damper |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3436804C2 (en) | 1994-02-10 |
| DE3436804A1 (en) | 1986-04-10 |
| FR2571456B1 (en) | 1991-06-14 |
| GB8524502D0 (en) | 1985-11-06 |
| GB2165336B (en) | 1987-12-23 |
| FR2571456A1 (en) | 1986-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20011004 |