US20040228680A1 - Retaining ring apparatus - Google Patents

Retaining ring apparatus Download PDF

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Publication number
US20040228680A1
US20040228680A1 US10/437,572 US43757203A US2004228680A1 US 20040228680 A1 US20040228680 A1 US 20040228680A1 US 43757203 A US43757203 A US 43757203A US 2004228680 A1 US2004228680 A1 US 2004228680A1
Authority
US
United States
Prior art keywords
retaining ring
groove
tapered
ring
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US10/437,572
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US6811349B1 (en
Inventor
Derril Loe
Teodor Mostior
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.)
GM Global Technology Operations LLC
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to US10/437,572 priority Critical patent/US6811349B1/en
Assigned to GENERAL MOTORS CORPORATION reassignment GENERAL MOTORS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MOSTIOR, TEODOR, LOE, DERRIL A.
Priority to JP2004099481A priority patent/JP3839442B2/en
Priority to DE102004021427A priority patent/DE102004021427B4/en
Application granted granted Critical
Publication of US6811349B1 publication Critical patent/US6811349B1/en
Publication of US20040228680A1 publication Critical patent/US20040228680A1/en
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS, INC. reassignment GM GLOBAL TECHNOLOGY OPERATIONS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GENERAL MOTORS CORPORATION
Assigned to UNITED STATES DEPARTMENT OF THE TREASURY reassignment UNITED STATES DEPARTMENT OF THE TREASURY SECURITY AGREEMENT Assignors: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Assigned to CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES, CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES reassignment CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES SECURITY AGREEMENT Assignors: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS, INC. reassignment GM GLOBAL TECHNOLOGY OPERATIONS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES DEPARTMENT OF THE TREASURY
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS, INC. reassignment GM GLOBAL TECHNOLOGY OPERATIONS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES, CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
Assigned to UNITED STATES DEPARTMENT OF THE TREASURY reassignment UNITED STATES DEPARTMENT OF THE TREASURY SECURITY AGREEMENT Assignors: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Assigned to UAW RETIREE MEDICAL BENEFITS TRUST reassignment UAW RETIREE MEDICAL BENEFITS TRUST SECURITY AGREEMENT Assignors: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS, INC. reassignment GM GLOBAL TECHNOLOGY OPERATIONS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: UAW RETIREE MEDICAL BENEFITS TRUST
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS, INC. reassignment GM GLOBAL TECHNOLOGY OPERATIONS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES DEPARTMENT OF THE TREASURY
Assigned to WILMINGTON TRUST COMPANY reassignment WILMINGTON TRUST COMPANY SECURITY AGREEMENT Assignors: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Assigned to GM Global Technology Operations LLC reassignment GM Global Technology Operations LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Assigned to GM Global Technology Operations LLC reassignment GM Global Technology Operations LLC RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST COMPANY
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
    • F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
    • F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/59—Manually releaseable latch type
    • Y10T403/599—Spring biased manipulator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/60—Biased catch or latch
    • Y10T403/602—Biased catch or latch by separate spring

Abstract

A retaining ring apparatus includes a C-ring and a groove within a shaft. The shaft groove has a tapered edge at one side thereof and the C-ring has at least one tapered surface, which is disposed in mating relationship with the tapered surface of the groove. The retaining ring apparatus is disposed within a larger structure, which has at least one mechanism for applying an axial force to the retaining ring to ensure the mating of the tapered surfaces.

Description

    TECHNICAL FIELD
  • This invention relates to retaining rings and, more particularly, to external retaining rings disposed in a groove in a shaft. [0001]
    • BACKGROUND OF THE INVENTION
  • Many mechanical devices employ at least one rotating shaft in which a rotating or retaining ring is disposed. The purpose of the retaining ring is to limit the movement of at least one mechanical member in a given direction, thereby setting the limits of assembly movement for that particular component. [0002]
  • One of the problems facing external retaining rings is that of centrifugal force. As the shaft in which the retaining ring is disposed rotates at high speed, the ring itself has a tendency to expand and thereby become loosened within the groove and perhaps even be expelled from the groove. There have been many retaining ring designs proposed to alleviate this problem. One of the designs that has been fairly successful is a spiral lock or a spiraling structure. However, the more conventional C-ring structure has remained as the mainstay of locating rings since the manufacture thereof is less expensive. [0003]
    • SUMMARY OF THE INVENTION
  • It is an object of the present invention to provide an improved retaining ring apparatus having a structural configuration, which inhibits expulsion from a retaining groove. [0004]
  • In one aspect of the present invention, a rotatable shaft has formed therein a groove with a tapered edge. [0005]
  • In another aspect of the present invention, a retaining ring having a tapered edge or wall is disposed in the groove in mating relationship with the tapered edge of the shaft groove. [0006]
  • In still another aspect of the present invention, a linear force is applied to the retaining ring to ensure complete mating of the tapered surfaces of the groove and ring. [0007]
  • In a further aspect of the present invention, the mating of the tapered ring and shaft inhibits outward movement of the retaining ring due to centrifugal forces being applied thereto. [0008]
  • In a yet further aspect of the present invention, the taper of the shaft groove and retaining ring are at an angle wherein the top of the groove is narrower than the bottom of the groove. [0009]
  • In a still further aspect of the present invention, the mating of the tapered surfaces increases the frictional characteristics of the mating parts to inhibit the outward movement of the retaining ring during centrifugal force application.[0010]
    • DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an elevational view of a portion of a transmission friction torque-transmitting assembly having a retaining ring and shaft groove constructed in accordance with the present invention. [0011]
  • FIG. 2 is a cross-sectional view of a portion of a shaft having a tapered groove formed therein. [0012]
  • FIG. 3 is an elevational view of a C-ring incorporating the present invention. [0013]
  • FIG. 4 is a view taken along line [0014] 4-4 of FIG. 3 showing the cross-sectional elevation of the retaining ring.
  • FIG. 5 is a view similar to FIG. 4 showing an optional design for the cross section of the retaining ring.[0015]
    • DESCRIPTION OF EXEMPLARY EMBODIMENTS
  • In FIG. 1, there is seen a portion of a transmission torque-[0016] transmitting mechanism 10. This torque-transmitting mechanism 10 includes a housing 12 in which is splined a plurality of plates 14. Slidably disposed within the housing 12 is a piston 16, which has an inner seal 18 and an outer seal 20 such that a chamber 22 formed between the piston 16 and the housing 12 is capable of holding fluid.
  • Interdigitated with the [0017] plates 14 is a plurality of plates 24. These plates 24 are splined with a housing shown at 26. When the piston 16 is pressurized by fluid in the chamber 22, the plates 14 and 24 are brought into frictional engagement thereby providing common rotation between the housing 12 and the housing 26. The piston 16 is urged rightward, as viewed in FIG. 1, by a plurality of springs 28, which are disposed between the piston 16 and a retainer plate 30.
  • The [0018] housing 12 is rotatably connected with a shaft 32 such that the housing 12, piston 16, plates 14, and retainer plate 30 rotate in unison. The shaft 32 has formed therein a circumferential groove 34 in which is disposed a retaining ring 36. The retaining ring 36 is abutted by the retainer plate 30 and therefore is a reactive member for the forces of the springs 28.
  • The [0019] groove 34, as seen in FIG. 2, has a substantially radial edge or wall 38 and a tapered edge or wall 40. The edge 40 is tapered at an angle A relative to the radial direction of the shaft 32. With this configuration, the opening at an outer surface 42 of the shaft 32 is narrower than a radially inner circumferential surface 44 of the groove 34.
  • The [0020] retaining ring 36 is essentially a C-ring, as seen in FIG. 3. The cross section of the C-ring 36 has tapered edges 46 and 48. The tapered edges 46 and 48 form an angle B with the radial direction D of the ring 36. One of these edges 46 or 48 is disposed in abutment with the edge 40 when the retaining ring 36 is assembled within the groove 34.
  • FIG. 5 shows an alternative embodiment of the [0021] retaining ring 36 wherein the ring has a tapered edge or wall 50 and a straight radial edge or wall 52. The tapered edge 50 is formed at an angle B relative to the radial direction D of the ring 36 while the edge 52 is formed as a radial surface on the ring 36.
  • When the [0022] ring 36 is assembled within the transmission torque-transmitting mechanism 10, the springs 28 and retainer plate 30 urge the ring 36 leftward, as seen in FIG. 1, in the groove 34 such that the tapered surfaces are disposed in abutment. Those skilled in the art will recognize that with the tapered surfaces the centrifugal forces, which are applied to the ring 36 through the rotation of the shaft 32, will be combated by the frictional engagement between the tapered surfaces.
  • The force of the [0023] springs 28 ensure that an axial force is applied to the ring 36 thereby maintaining the tapered surfaces in abutment with each other. The cross-sectional surface of the ring shown in FIG. 4 is such that the ring 36 cannot be misassembled within the groove 34. The cross section shown in FIG. 5, while being an easier manufacturing structure, has need to be assembled correctly within the groove 34 and therefore requires some education for the installer.

Claims (3)

1. A retaining ring apparatus comprising:
a shaft having a circumferential groove formed therein, said groove expanding in width in a direction toward the center of said shaft to form at least one tapered wall;
a retaining ring disposed in said groove, said retaining ring having a mating tapered surface disposed in radial abutment with said tapered wall; and
resilient means independent of and separate from said retaining ring for applying an axial force to said retaining ring on a surface disposed axially from said mating tapered surfaces to urge abutment of said tapered surfaces.
2. The retaining ring apparatus defined in claim 1 further wherein:
said means for applying an axial force is comprised of a plurality of spring members and a plate.
3. The retaining ring apparatus defined in claim 1 further comprising:
said retaining ring comprising a C-ring having two tapered side walls and circumferential inner and outer walls, wherein said inner wall is wider that said outer wall.
US10/437,572 2003-05-14 2003-05-14 Retaining ring apparatus Expired - Fee Related US6811349B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/437,572 US6811349B1 (en) 2003-05-14 2003-05-14 Retaining ring apparatus
JP2004099481A JP3839442B2 (en) 2003-05-14 2004-03-30 Retaining ring device
DE102004021427A DE102004021427B4 (en) 2003-05-14 2004-04-30 Fixation ring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/437,572 US6811349B1 (en) 2003-05-14 2003-05-14 Retaining ring apparatus

Publications (2)

Publication Number Publication Date
US6811349B1 US6811349B1 (en) 2004-11-02
US20040228680A1 true US20040228680A1 (en) 2004-11-18

Family

ID=33299568

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/437,572 Expired - Fee Related US6811349B1 (en) 2003-05-14 2003-05-14 Retaining ring apparatus

Country Status (3)

Country Link
US (1) US6811349B1 (en)
JP (1) JP3839442B2 (en)
DE (1) DE102004021427B4 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042120A1 (en) * 2005-09-06 2007-03-08 Zf Friedrichshafen Ag Axial fixing arrangement for components, has snap ring comprising chamfered support surface, where snap ring comprises conical cross section with another chamfered support surface, and contact surface is formed in inclined manner
US20160091030A1 (en) * 2014-09-27 2016-03-31 Zf Friedrichshafen Ag Clutch for an Automatic Transmission
WO2020185273A1 (en) * 2019-03-12 2020-09-17 Schaeffler Technologies AG & Co. KG Stamped cover for clutch system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7197807B2 (en) * 2004-03-22 2007-04-03 General Motors Corporation Castellated snap ring retention system and method
US20050205380A1 (en) * 2004-03-22 2005-09-22 Raszkowski James A Retaining ring apparatus for a hybrid transmission
DE102004014112A1 (en) * 2004-03-23 2005-10-13 Zf Friedrichshafen Ag Plate carrier with snap ring
DE102005003377B4 (en) * 2005-01-24 2007-09-13 Zander Aufbereitungstechnik Gmbh & Co. Kg Adsorption dryer for gaseous media with at least one tubular pressure vessel
JP2007285382A (en) * 2006-04-14 2007-11-01 Nsk Warner Kk Multiple disc type friction clutch
JP5919715B2 (en) * 2011-10-07 2016-05-18 株式会社デンソー Starter
DE102012013991A1 (en) * 2012-07-11 2014-01-16 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Thrust bearing arrangement of gear assembly, has ring element that is inserted into groove such that axial forces of component over disk assembly and ring element are guided in shaft

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343581A (en) * 1979-05-21 1982-08-10 Waldes Kohinoor, Inc. Double-bevel spring retaining ring
US4380405A (en) * 1980-01-07 1983-04-19 Hitachi, Ltd. Head flange mounting device for turbo-machine
US4447171A (en) * 1980-11-07 1984-05-08 The Firestone Tire & Rubber Company Demountable sealed joint for the fluid tight connection of a sheet member to a support
US5897146A (en) * 1996-03-21 1999-04-27 Yano Giken Co., Ltd. Flexible pipe connector
US6101920A (en) * 1997-04-08 2000-08-15 Hygrama Ag Pneumatic or hydraulic cylinder with piston position detector mounted in longitudinal groove in cylinder tube surface
US6348001B2 (en) * 1999-09-20 2002-02-19 Utica Enterprises, Inc. Power transmission member
US6663145B1 (en) * 2000-11-06 2003-12-16 Group Timberline, Inc. Conduit coupling with interior grip rings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767134C (en) * 1942-03-12 1952-12-22 Anschuetz & Co Gmbh Secured by means of a snap ring
BE469107A (en) * 1945-01-25
US2595787A (en) * 1947-03-12 1952-05-06 Waldes Kohinoor Inc Retaining ring assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343581A (en) * 1979-05-21 1982-08-10 Waldes Kohinoor, Inc. Double-bevel spring retaining ring
US4380405A (en) * 1980-01-07 1983-04-19 Hitachi, Ltd. Head flange mounting device for turbo-machine
US4447171A (en) * 1980-11-07 1984-05-08 The Firestone Tire & Rubber Company Demountable sealed joint for the fluid tight connection of a sheet member to a support
US5897146A (en) * 1996-03-21 1999-04-27 Yano Giken Co., Ltd. Flexible pipe connector
US6101920A (en) * 1997-04-08 2000-08-15 Hygrama Ag Pneumatic or hydraulic cylinder with piston position detector mounted in longitudinal groove in cylinder tube surface
US6348001B2 (en) * 1999-09-20 2002-02-19 Utica Enterprises, Inc. Power transmission member
US6663145B1 (en) * 2000-11-06 2003-12-16 Group Timberline, Inc. Conduit coupling with interior grip rings

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042120A1 (en) * 2005-09-06 2007-03-08 Zf Friedrichshafen Ag Axial fixing arrangement for components, has snap ring comprising chamfered support surface, where snap ring comprises conical cross section with another chamfered support surface, and contact surface is formed in inclined manner
US20160091030A1 (en) * 2014-09-27 2016-03-31 Zf Friedrichshafen Ag Clutch for an Automatic Transmission
US9644688B2 (en) * 2014-09-27 2017-05-09 Zf Friedrichshafen Ag Clutch for an automatic transmission
WO2020185273A1 (en) * 2019-03-12 2020-09-17 Schaeffler Technologies AG & Co. KG Stamped cover for clutch system
US10955010B2 (en) 2019-03-12 2021-03-23 Schaeffler Technologies AG & Co. KG Stamped cover for clutch system

Also Published As

Publication number Publication date
DE102004021427B4 (en) 2005-10-27
JP3839442B2 (en) 2006-11-01
US6811349B1 (en) 2004-11-02
JP2004340371A (en) 2004-12-02
DE102004021427A1 (en) 2005-01-05

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