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WO2019115124A1 - Porte-lamelles en tôle et procédé d'augmentation de sa résistance à la vitesse de rotation - Google Patents

Porte-lamelles en tôle et procédé d'augmentation de sa résistance à la vitesse de rotation Download PDF

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Publication number
WO2019115124A1
WO2019115124A1 PCT/EP2018/081282 EP2018081282W WO2019115124A1 WO 2019115124 A1 WO2019115124 A1 WO 2019115124A1 EP 2018081282 W EP2018081282 W EP 2018081282W WO 2019115124 A1 WO2019115124 A1 WO 2019115124A1
Authority
WO
WIPO (PCT)
Prior art keywords
tooth
plate
carrier
teeth
plate carrier
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.)
Ceased
Application number
PCT/EP2018/081282
Other languages
German (de)
English (en)
Inventor
Walter Fritz
Thilo HEINLEIN
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of WO2019115124A1 publication Critical patent/WO2019115124A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/62—Clutch-bands; Clutch shoes; Clutch-drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/025—Internally geared wheels
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/68—Attachments of plates or lamellae to their supports
    • F16D13/683—Attachments of plates or lamellae to their supports for clutches with multiple lamellae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels

Definitions

  • the present invention relates to a method for increasing the speed of a plate-plate carrier according to the closer defined in the preamble of claim 1.
  • the invention further relates to a plate-plate carrier according to the closer defined in the preamble of claim 5 and a multi-plate clutch with such a plate Plate carrier according to the closer defined in the preamble of claim 13.
  • a transmission device which has an inner disk carrier which comprises a cylindrical end contour in the region of a free end remote from a carrier element.
  • This cylindrical end contour of the inner disk carrier increases the rotational speed resistance of the lamella profile of the inner disk carrier.
  • a coupling device with an inner disk carrier which has a toothed section and a carrier section.
  • the toothed portion and the support portion are connected together.
  • the inner disk carrier has a bottom portion which is arranged axially adjacent to the drive-side toothing portion on a side opposite the end-side region of the driven-side disk carrier.
  • the bottom portion is substantially free of teeth and annular.
  • the bottom section extends substantially radially inwardly from the driven-side toothed section. This embodiment avoids a radial widening of the driven-side disk carrier.
  • Object of the present invention is therefore to provide a method for speed increase and a plate-plate carrier, which is inexpensive to produce and can also be used in high-speed motors.
  • a method for increasing the rotational speed of a sheet-metal plate carrier in which a plate-plate carrier is provided with an axially extending cylindrical toothed portion.
  • the toothed portion comprises a free end and is deformed such that it has on its outer peripheral surface an external toothing and on its inner peripheral surface complementary to this internal toothing.
  • These teeth each comprise a plurality of teeth spaced apart from each other in the circumferential direction by tooth grooves, each having a tooth tip end and a tooth root end in the axial direction in the region of the free end. At least some of the tooth tip ends of the internal teeth or the external teeth are pressed in the direction of their respective tooth root end.
  • a reinforcing wall extending in the radial direction is formed in the region of the free end of the respective tooth.
  • Radial direction here means that at least at a certain angle from the axial direction is changed.
  • the resulting reinforcing wall is preferably designed obliquely to the tooth head surface, which extends axially, in the longitudinal direction.
  • cost-effectively produced sheet-plate carriers which are actually intended for use in less high-revving engines, especially diesel engines, can be modified by a further step such that they can also be used for high-speed engines, in particular gasoline engines ,
  • the already manufactured, not speed-resistant sheet-plate carrier can be inexpensively and easily strengthened by just pressed at least some of the free ends of the respective teeth, in particular embossed.
  • the two tooth flanks of the respective tooth to be reinforced are supported on the outside in the region of the free end, in particular via two support surfaces of the stamping tool, so that they are held in position during forming of the tooth tip end.
  • the tooth geometry of the respective toothing remains unchanged and as a result the lamellae engaging therein are axially displaceable without being misjudged.
  • the slats can thus be inserted into the corresponding toothing even after the formation of the reinforcing wall and also removed again.
  • the embossing tool converts several, preferably all, tooth heads in one embossing cycle.
  • the embossing tool is designed in such a way that it only transforms a single tooth head in a stamping cycle.
  • the embossing tool can be designed very inexpensively.
  • the plate-plate carrier is arranged in a rotatable receiving unit and / or is rotated tooth-wise relative to the embossing tool.
  • a sheet-metal plate carrier for a multi-plate clutch which has an axially extending cylindrical toothed portion.
  • the toothed section comprises a free end in the axial direction.
  • the toothed section is reshaped in such a way that it has an outer toothing on its outer circumferential surface and an inner toothing complementary thereto on its inner circumferential surface.
  • the gearing i. the inner and outer teeth, to the free end.
  • the external teeth and internal teeth each comprise a plurality of teeth spaced from one another in the circumferential direction by tooth grooves.
  • the teeth each have a tooth tip end and a tooth root end in the axial direction in the region of the free end.
  • the external teeth and the internal teeth are complementary to each other.
  • tooth of the external toothing and the tooth groove of the internal toothing are arranged in the circumferential direction at the same angular interval. Furthermore, this preferably means that the teeth of the respective toothing are hollow and this cavity forms the respective tooth groove of the other toothing.
  • the tooth tip ends of the internal gear or the external gear are pressed radially in the direction of their respective tooth root end.
  • the teeth of the internal toothing or of the external toothing are accordingly reshaped in such a way that their rotational speed resistance is increased in the region of the free end.
  • the reshaped tooth tip ends are preferably formed by a speed increase process according to the preceding description, said features being individual or may be present in any combination.
  • these teeth have a radially extending reinforcing wall in the region of the free end.
  • the plate-plate carrier has an increased speed resistance, so that it can also be used in high-speed engines, especially gasoline engines.
  • this sheet-metal plate carrier is characterized by its low production costs, since its production uses a sheet-metal plate carrier intended for less high-revving motors, in particular diesel engines, which can be formed by a quick and inexpensive forming operation with the reinforcing wall.
  • these deformed teeth each have a stiffening bend.
  • This is preferably formed in the tooth longitudinal direction between a Zahnkopf Design and the reinforcing wall.
  • the tooth head surface forms the surface extending in the tooth longitudinal direction and formed in the region of the tooth head.
  • the stiffening kink gives the tooth a higher speed resistance, so that the plate plate carrier can also be used for high-speed motors.
  • the reinforcing wall of the respective tooth runs obliquely, in particular perpendicularly, with respect to the tooth head surface. Additionally or alternatively, it is advantageous if the outer side of the reinforcing wall is formed flat, in particular pressed flat.
  • the tooth tip end is pressed in the radial direction at the maximum to the level of the respective tooth root end.
  • the tooth tip has a radial distance at a lower deformation to the respective Zahnfußende.
  • the reinforcing wall is formed by a stamping of the respective tooth in the region of its free end.
  • the displaced in the manufacture of the reinforcing wall material is formed in a tooth interior.
  • the internal space of the tooth is therefore the cavity of the respective tooth, which due to the comfor- plementric training of the two gears forms the tooth groove of the other teeth.
  • the sheet-metal plate carrier can be produced inexpensively if two mutually adjacent reinforcing walls are spaced from each other in the circumferential direction, in particular by the interposed tooth groove.
  • the sheet-metal plate carrier is an inner plate carrier.
  • the sheet-metal plate carrier is designed as an outer plate carrier.
  • the tooth tip ends of the internal toothing, in particular all the tooth heads are pressed radially outward. In this way it can be ensured that the outer disks can be pushed onto the inner toothing of the outer disk carrier.
  • the sheet-metal plate carrier in the region of the end facing away from the free end of the toothed portion on a support portion for centering and / or forwarding a torque.
  • the support portion and the toothed portion are integrally formed with one another and of uniform material.
  • these are formed in two parts and are positively and / or materially connected to each other.
  • in a one-piece and material uniform design of the carrier and toothing portion of the plate plate carrier can be made very inexpensive.
  • a multi-plate clutch with an inner disk carrier, with the inner disk rotatably and axially movably connected, and with an outer disk carrier, with the outer disk rotatably and axially movably connected.
  • the inner disk carrier and the outer disk carrier are rotatable relative to one another about an axis of rotation. Furthermore, their mutually corresponding slats can be brought into frictional contact with each other by introducing an axial force, so that a torque can be transmitted between the two slat carriers.
  • At least one of the two plate carriers is produced as a sheet-metal plate carrier in a speed increase process according to the preceding description and / or designed according to the preceding description, wherein said characteristics may be present individually or in any combination.
  • a multi-plate clutch designed for less high-speed motors can be adapted very quickly and cost-effectively also for use in high-speed engines.
  • FIG. 1 shows a partial section of a plate-plate carrier in a perspective sectional view, without / prior to carrying out a method for speed increase
  • FIG 3 shows a longitudinal section of the sheet-metal plate carrier shown in Figure 2 in the region of a tooth.
  • FIG. 1 shows a sheet-metal plate carrier 1 for a multi-plate clutch not shown here.
  • a multi-plate clutch comprises a nenlamellenlasi and a corresponding with this outer plate carrier.
  • the inner disk carrier has rotating test and axially movable inner disks.
  • the outer disk carrier rotatable and axially movable outer disks.
  • the inner disk carrier and the outer disk carrier are rotatable relative to one another about an axis of rotation.
  • the inner disks and the outer disks intermesh alternately.
  • the mutually corresponding slats can be brought into frictional contact by introducing an axial force, so that a torque can be transmitted between the two slat carriers.
  • the sheet-metal plate carrier 1 comprises a toothed section 2, which extends in the axial direction of the plate-plate carrier 1.
  • the toothed section 2 has a cylindrical basic shape.
  • the sheet-metal plate carrier 1 comprises a carrier section 3.
  • the carrier section 3 holds the toothed section 2 and thus serves to center it.
  • the support portion 3 and the toothed portion together have a cup shape.
  • a torque from the toothed portion 2 are transmitted to a shaft not shown here, which can be rotatably coupled in the region of a hub with the plate-plate carrier. Likewise, it is possible to transmit torque from this shaft via the hub of the sheet-metal plate carrier 1, which is not shown here, to the toothed section 2 via the carrier section 3.
  • the carrier section 3 and the toothed section 2 are formed together in one piece and of the same material. Alternatively, however, these can also be connected to one another in their connection region in a form-fitting and / or material-locking manner.
  • the basic shape of the plate-plate carrier 1 can be produced in a forming process. Preferably, the basic shape is produced by means of a deep-drawing process or rolling process.
  • the toothed portion 2 has on its outer peripheral surface an external toothing 4 and on its inner peripheral surface an internal toothing 5. These are formed due to production technology complementary to each other. This means tet, that in the circumferential direction, the teeth 6, 9 of a toothing in the tooth grooves 7, 8 of the other teeth are arranged.
  • teeth 6, 9 are hollow, with their tooth interior 15,
  • the external toothing 4 and the internal toothing 5 are produced together in a production method, in particular an axial rolling method.
  • the external toothing 4 is produced together with the internal toothing 5 in a segment-mold method according to Müller-Weingart, a punching method with the coarse 12 NCT or a profile roll method with small rolls according to Müller-Weingart.
  • the external toothing 4 accordingly comprises a plurality of first teeth 6 spaced apart from each other in the circumferential direction by first tooth grooves 7.
  • the internal toothing 5 has a plurality of second teeth 9, which in turn are spaced apart from each other by second tooth grooves 8 arranged therebetween.
  • only one of the teeth 6, 9 and only one of the toothed grooves 7, 8 of the respective toothing 4, 5 is provided with a reference numeral.
  • the deformed toothed section 2 has hollow teeth 6, 9 due to the method.
  • the teeth 6, 9 each form the toothed groove 7, 8 of the other toothing 4, 5.
  • the first hollow tooth 6 of the external toothing 4 thus forms the second toothed groove 8 of the internal toothing 5.
  • the two toothings 4, 5 are thus formed complementary to one another.
  • the toothing section 2 has a free end 10 according to FIG.
  • the teeth 6, 9 each have a tooth head end 11, 14 and a corresponding tooth root end 12 in longitudinal section,
  • the first tooth tip end 11 is arranged radially outside and the first tooth tip end 12 is arranged radially inside. Conversely, it behaves in the internal toothing 5. Accordingly, here is the second end of the tooth head
  • the external toothing 4 and the internal toothing 5 are designed to be complementary to one another in terms of production engineering.
  • the teeth 6, 9 have tooth spaces 15, 16. These each form the tooth grooves 7, 8 of the corresponding other teeth 4, fifth
  • the sheet-metal plate carrier 1 shown in Figure 1 can advantageously be produced very inexpensively.
  • the disadvantage of this, however, is that it does not have high speed stability.
  • the toothed section 2 radially expands at too high speeds in the region of the free end 10.
  • the sheet-metal plate carrier 1 shown in Figure 1 is essentially suitable only for less high-revving engines, especially diesel engines.
  • the aim is to upgrade these inexpensive sheet-metal plate carrier 1 in such a way that they can also be used in high-speed engines, in particular gasoline engines.
  • a plate-plate carrier 1 according to the embodiment shown in Figure 1 is provided.
  • the sheet-metal plate carrier 1 is first clamped in a machine, not shown here. This may be the same machine that also forms the external toothing 4 and the internal toothing 5 of the toothing section 2.
  • the tooth head ends 11, 14 of the internal toothing 5 or the external toothing 4 are pressed radially in the direction of their respective tooth root end 12, 13.
  • a reinforcing wall 17 is formed, which are shown in the embodiment shown in Figures 2 and 3 and of which not all are provided with a reference numeral for the sake of clarity.
  • FIGS 2 and 3 show the corresponding reworked plate-plate carrier 1, wherein this is presently used as an inner disc carrier.
  • the external toothing 4 is used to connect the associated, not shown here, inner disk rotatably and axially movable with the inner disk carrier.
  • the first tooth tip ends 1 1 of the outer teeth 4 are pressed radially in the direction of their respective first Zahnfußenden 12.
  • Each of the teeth 6 of the outer teeth 4 accordingly has in the region of its free end 10 a pressing on, by means of which a respective reinforcing wall 17 is formed.
  • the pressing or formed by forming reinforcing wall 17 is formed by means of an embossing tool, not shown here.
  • the embossing tool with which the tooth tip ends 1 1 are pressed, may be formed differently. Accordingly, it is conceivable that this is designed such that several, preferably all tooth tip ends 1 1 are formed simultaneously. Alternatively, it is also conceivable that the tooth tip ends 1 1 are individually formed. It is advantageous if a receiving unit of the embossing tool, in which the plate-plate carrier 1 is received, is rotatably formed. As a result, the sheet-metal plate carrier 1 can be rotated tooth-wise with respect to the stamping tool.
  • the embossing tool can be activated, whereby the tooth tip end 11 of the respective tooth 6 is reshaped such that a corresponding reinforcing wall 17 is formed at the free end 10.
  • FIG. 3 shows an axial longitudinal section through the first tooth 6 of the outer toothing 4.
  • the teeth 6 now have the amplification in the region of the free end 10. kungsclaim 17 on.
  • the first tooth 6 comprises a stiffening bend 20. This is formed in the tooth longitudinal direction between a tooth head surface 21 and the associated reinforcing wall 17.
  • the reinforcing wall 17 extends obliquely to the tooth tip surface 21, which extends in the longitudinal direction.
  • the stiffening wall 17 extends at an angle of approximately 45 ° relative to the tooth head surface 21.
  • the reinforcing wall 17 may be compared to the tooth head surface 21 inclined to an angle of 90 °.
  • the tooth tip end 11 is not completely deformed in the radial direction up to its tooth tip foot or tooth root end 12. Instead, the tooth tip end 11 has a radial distance 22 from the associated tooth root end 12.
  • the reinforcing wall 17 thus does not completely close the first tooth interior 15 of the first tooth 6 on the free end 10 side. In order to achieve the highest possible strength, however, it is advantageous if the tooth tip end 1 1 is pressed to the level of the Zahnfußendes 12. In this case, the respective first tooth 6 or the second toothed groove 8 is completely closed at the end by the reinforcing wall 17.
  • the reinforcing walls 17 of the respective first teeth 6 do not form an uninterrupted reinforcing collar, but instead are interrupted or spaced apart in the circumferential direction from one another by the first toothed grooves 7 arranged therebetween.
  • a reinforcement collar (not shown here) is formed. In the case of a sheet-metal plate carrier designed as an inner disk carrier, this reinforcing collar would extend radially inwards from the base of the tooth 12.
  • this reinforcing collar In the case of a sheet-metal plate carrier configured as an outer plate carrier, this reinforcing collar would extend radially outwards from the respective tooth root end 13.
  • the reinforcing collar would be circumferentially closed in this case, ie uninterrupted trained. Only in the area of the tooth flanks would still be a trained by the respective tooth grooves 7, 8 distance between the respective adjacent teeth 6, 9 may be formed.
  • the sheet-metal plate carrier 1 illustrated in FIGS. 2 and 3 is designed as an inner plate carrier.
  • this is designed as an outer disk carrier.
  • not the external teeth 4, but internal teeth 5 would be used for rotationally fixed and axially movable recording of the slats.
  • the abovementioned features of the inner disk carrier can accordingly be transmitted in an analogous manner to the outer disk carrier not explicitly shown above.
  • the reinforcing wall 17 may in this case be designed according to the preceding description, wherein said features may be present individually or in any desired combination.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un procédé d'augmentation de la résistance à la vitesse de rotation d'un porte-lamelles en tôle (1), lors duquel est fourni un porte-lamelles en tôle (1) ayant une portion de denture (2) cylindrique qui s'étend dans la direction axiale. La portion de denture (2) comporte une extrémité libre (10) et elle est façonnée de telle sorte que celle-ci possède une denture extérieure (4) sur sa surface périphérique extérieure et une denture intérieure (5), complémentaire à celle-ci, sur sa surface périphérique intérieure, lesquelles comportent respectivement plusieurs dents (6 ; 9) espacées les unes des autres dans le sens périphérique par des rainures de dent (7 ; 8), lesquelles possèdent respectivement une extrémité de sommet de dent (11 ; 14) dans la direction axiale, dans la zone de l'extrémité libre (10), et une extrémité de pied de dent (12 ; 13). Selon l'invention, au moins certaines des extrémités de sommet de dent (11 ; 14) de la denture extérieure (4) ou intérieure (5) sont poussées radialement en direction de leur extrémité de pied de dent (12 ; 13) respective, moyennant quoi une paroi de renforcement (17) qui s'étend dans la direction radiale est formée dans la zone de l'extrémité libre (10) de la dent (6 ; 9) correspondante. L'invention concerne en outre un tel porte-lamelles en tôle (1).
PCT/EP2018/081282 2017-12-15 2018-11-15 Porte-lamelles en tôle et procédé d'augmentation de sa résistance à la vitesse de rotation Ceased WO2019115124A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017222891.1 2017-12-15
DE102017222891.1A DE102017222891A1 (de) 2017-12-15 2017-12-15 Blech-Lamellenträger sowie Verfahren zu dessen Drehzahlfestigkeitserhöhung

Publications (1)

Publication Number Publication Date
WO2019115124A1 true WO2019115124A1 (fr) 2019-06-20

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Application Number Title Priority Date Filing Date
PCT/EP2018/081282 Ceased WO2019115124A1 (fr) 2017-12-15 2018-11-15 Porte-lamelles en tôle et procédé d'augmentation de sa résistance à la vitesse de rotation

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Country Link
DE (1) DE102017222891A1 (fr)
WO (1) WO2019115124A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US20210253197A1 (en) * 2020-02-14 2021-08-19 Sram Deutschland Gmbh Sprocket for a bicycle drive train

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Publication number Priority date Publication date Assignee Title
DE102020107436A1 (de) 2020-03-18 2021-09-23 Volkswagen Aktiengesellschaft Lamellenträger für eine Lamellenkupplung und Verfahren zu dessen Herstellung
DE102021126010A1 (de) 2020-10-29 2022-05-05 Schaeffler Technologies AG & Co. KG Nasskupplung mit drehzahloptimiertem Innenlamellenträger
DE102021102293B4 (de) 2021-02-02 2022-09-08 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Lamellenträger einer Nasskupplung
DE102023205470B3 (de) 2023-06-13 2024-06-27 Zf Friedrichshafen Ag Lamellenträger für ein Lamellenschaltelement

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US4956986A (en) * 1987-08-21 1990-09-18 Anderson-Cook, Inc. Roll forming notches in a thin-wall power transmission member
US5806645A (en) * 1996-08-19 1998-09-15 Tesma International Inc. Plate clutch assembly having a torque transmitting member with an improved lubrication controlling dam structure
US6158265A (en) * 1997-03-20 2000-12-12 Koppy Corporation Method of forming retaining members on a housing
DE102006025034A1 (de) 2006-05-26 2007-11-29 Müller Weingarten AG Vorrichtung und Verfahren zur Herstellung von Profilkörpern
DE102008040123A1 (de) 2008-07-03 2010-01-07 Zf Friedrichshafen Ag Getriebevorrichtung mit wenigstens einem Planetenradsatz und einem reibschlüssigen Schaltelement
DE102015219635A1 (de) 2014-11-05 2016-05-12 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung

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DE102014205570A1 (de) * 2013-03-26 2014-10-02 Schaeffler Technologies Gmbh & Co. Kg Trägerelement und Kupplung
DE102015215798A1 (de) * 2015-08-19 2017-02-23 Schaeffler Technologies AG & Co. KG Lamellenträger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956986A (en) * 1987-08-21 1990-09-18 Anderson-Cook, Inc. Roll forming notches in a thin-wall power transmission member
US5806645A (en) * 1996-08-19 1998-09-15 Tesma International Inc. Plate clutch assembly having a torque transmitting member with an improved lubrication controlling dam structure
US6158265A (en) * 1997-03-20 2000-12-12 Koppy Corporation Method of forming retaining members on a housing
DE102006025034A1 (de) 2006-05-26 2007-11-29 Müller Weingarten AG Vorrichtung und Verfahren zur Herstellung von Profilkörpern
DE102008040123A1 (de) 2008-07-03 2010-01-07 Zf Friedrichshafen Ag Getriebevorrichtung mit wenigstens einem Planetenradsatz und einem reibschlüssigen Schaltelement
DE102015219635A1 (de) 2014-11-05 2016-05-12 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210253197A1 (en) * 2020-02-14 2021-08-19 Sram Deutschland Gmbh Sprocket for a bicycle drive train
US11767079B2 (en) * 2020-02-14 2023-09-26 Sram Deutschland Gmbh Sprocket for a bicycle drive train

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