WO2001092760A1 - Poulie à roue libre comportant une matière de revêtement - Google Patents

Poulie à roue libre comportant une matière de revêtement Download PDF

Info

Publication number
WO2001092760A1
WO2001092760A1 PCT/US2001/017520 US0117520W WO0192760A1 WO 2001092760 A1 WO2001092760 A1 WO 2001092760A1 US 0117520 W US0117520 W US 0117520W WO 0192760 A1 WO0192760 A1 WO 0192760A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheave
clutch
hub
over
pulley
Prior art date
Application number
PCT/US2001/017520
Other languages
English (en)
Inventor
Randall King
Mary-Jo Liston
Original Assignee
Ntn Corporation
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 Ntn Corporation filed Critical Ntn Corporation
Priority to US10/381,764 priority Critical patent/US7052420B2/en
Priority to EP01941714A priority patent/EP1208318A4/fr
Priority to JP2002500132A priority patent/JP2003535287A/ja
Publication of WO2001092760A1 publication Critical patent/WO2001092760A1/fr

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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/20—Freewheels or freewheel clutches with expandable or contractable clamping ring or band
    • F16D41/206—Freewheels or freewheel clutches with expandable or contractable clamping ring or band having axially adjacent coils, e.g. helical wrap-springs

Definitions

  • This invention relates generally to devices in the over-running clutch field, and more specifically to an improved over-running clutch pulley for use with an accessory device driven by an automotive engine with a belt drive.
  • a drive belt is typically used to power and operate various accessory devices.
  • One of these accessory devices is typically an automotive alternator, which provides electrical power to the automobile.
  • the serpentine arrangement which drives several accessory devices, is currently most favored.
  • Serpentine arrangements typically include a drive pulley connected to the crankshaft of the engine (the “output device") and a drive belt trained about the drive pulley.
  • the drive belt is also trained about one or more conventional driven pulleys, which are connected to the input shafts of various accessories devices (the "input device").
  • the drive belt may experience many instances of sudden deceleration relative to the input shaft. This situation may occur, for example, during a typical shift from first gear to second gear under wide open throttle acceleration. This situation is worsened if the throttle is closed or "back off immediately after the shift. In these situations, the drive belt decelerates very quickly while the driven pulley, with the high inertia from the accessory device, maintains a high rotational speed, despite the friction between the drive belt and the driven pulley.
  • the drive belt may experiences other situations that cause audible vibration and undue wear.
  • a serpentine arrangement with conventional driven pulleys may be used with an automobile engine that has an extremely low idle engine speed (which may increase fuel economy).
  • the arrangement typically experiences "belt flap" of the drive belt as the periodic cylinder firing of the automotive engine causes the arrangement to resonate within a natural frequency and cause an audible vibration and an undue wear on the drive belt.
  • the disadvantage of the conventional driven pulleys namely the audible squeal, the undue wear, and the vibration of the drive belt, may be avoided by the use of an over-running clutch pulley instead of the conventional driven pulley.
  • An over-running clutch pulley allows the pulley to continue to rotate at the same rotational speed and in a same rotational direction after a sudden deceleration of the drive belt.
  • the over-running clutch pulley functions like the rear hub of a typical bicycle; the rear hub and rear wheel of a conventional bicycle continue to rotate at the same rotational speed and in the same rotational direction even after a sudden deceleration of the pedals and crankshaft of the bicycle.
  • An example of an over-running clutch pulley is described in U.S. Patent No. 5,598,913 issued to the same assignee of this invention and hereby incorporated in its entirety by this reference.
  • This invention provides an over-running clutch pulley with features intended to increase wear resistance, while minimizing the costs of the over-running clutch pulley.
  • FIG. 1 is a perspective view of an over-running clutch pulley of the invention, shown with a drive belt as the input device and a cylindrical shaft as the output device; and
  • FIG. 2 is a partial cross-section view, taken along the line 2-2 of FIG. 1 , of the overrunning clutch pulley of the preferred embodiment.
  • the invention includes an over-running clutch pulley 10 for rotationally engaging an input device 12 and an output device 14.
  • the over-running clutch pulley 10 has been designed for use with a drive belt 16 as the input device 12, and with a cylindrical shaft 18 as the output device 14. More specifically, the over-running clutch pulley 10 has been particularly designed for use with a drive belt 16 with a grooved surface and a cylindrical shaft 18 of an automotive alternator.
  • the over-running clutch pulley 10 may be used, however, in other environments, with other suitable input devices, such as smooth belt, a toothed belt, a V- shaped belt, or even a toothed gear, and with other suitable output devices, such as a polygonal shaft.
  • the over-running clutch pulley 10 may be used in an environment with two devices that alternate their rotational input responsibilities, and in an environment with an "output device” that actually provides rotational input and with an "input device” that actually receives rotational input.
  • the terms “input device” and “output device” are interchangeable.
  • the over-running clutch pulley 10 of the preferred embodiment includes a sheave member 20, a hub member 22 located substantially concentrically within the sheave member 20, a clutch member 24, and a coating 26, which cooperate to rotationally engage the drive belt and the cylindrical shaft.
  • the sheave member 20 preferably includes a sheave input section 28 defining a sheave input surface 30 adapted to the engage the input device, and a sheave clutch section 32 defining a sheave clutch surface 34.
  • the hub member 22 preferably includes a hub output section 36 defining a hub output surface 38 adapted to engage the output device, and a hub clutch section 40 defining a hub clutch surface 42.
  • the coating 26 is disposed on the sheave input surface 30, the sheave clutch surface 34, the hub output surface 38, and the hub clutch surface 42.
  • the coating 26, which is disposed on these surfaces instead of selectively avoiding one or more of these surfaces, protects against substantial corrosion and increases the wear resistance, while minimizing the cost of the over-running clutch pulley.
  • the sheave input section 28 of the sheave member 20 of the preferred embodiment functions to engage the drive belt.
  • the sheave input section 28 preferably defines the sheave input surface 30 with two sheave input shoulders 44 and at least one sheave input groove 46.
  • the sheave input section 28 may alternatively define other suitable surfaces, such as toothed surfaces or ribbed surfaces, to engage the input device.
  • the sheave input surface 30 is preferably outwardly directed (away from the rotational axis of the over-running clutch pulley 10) and is preferably substantially cylindrically shaped.
  • the sheave input section 28 is preferably made from conventional structural materials, such as steel, and with conventional methods, but may alternatively be made from other suitable materials and from other suitable methods.
  • the hub output section 36 of the hub member 22 of the preferred embodiment functions to engage the cylindrical shaft.
  • the hub output section 36 preferably defines the hub output surface 38 with a smooth section 48 (which functions to ease and center the assembly of the over-running clutch pulley 10 onto the cylindrical shaft), a threaded section 50 (which functions to substantially prevent rotation and to axially retain the hub member 22 to the cylindrical shaft), and a hexagonal section 52 (which functions to mate with an alien wrench for easy tightening and loosening of the over-running clutch pulley 10 onto and off of the cylindrical shaft).
  • the hub output section 36 may include other suitable devices or define other surfaces to prevent rotational and axial slippage, to engage the cylindrical shaft, and to engage a tool for tightening or loosening the over-running clutch pulley 10 onto and off of the cylindrical shaft.
  • the hub output surface 38 is preferably inwardly directed (toward the rotational axis of the overrunning clutch pulley 10) and is preferably substantially cylindrically shaped.
  • the hub output section 36 is preferably made from conventional structural materials, such as steel, and with conventional methods, but may alternatively be made from other suitable materials and from other suitable methods.
  • the over-running clutch pulley 10 of the preferred embodiment also includes a bearing member 54, which functions to allow relative rotational movement of the sheave member 20 and the hub member 22.
  • the bearing member 54 which is preferably a rolling element type, preferably includes an outer race element 58 preferably press-fit mounted onto a sheave bearing surface 60 of the sheave member 20, an inner race element 62 preferably press-fit mounted onto a hub bearing surface 64 of the hub member 22, ball bearing elements 66 preferably located between the outer race element 58 and the inner race element 62, and bearing seals 68 preferably extending between the outer race element 58 and the inner race element 62 on either side of the ball bearing elements 66.
  • the bearing member 54 may alternatively be of other suitable types, such as a journal bearing or a roller bearing, may alternatively include other suitable elements, and may alternatively be mounted to other suitable surfaces with other suitable manners.
  • the bearing member 54 is a conventional device and, as such, is preferably made from conventional materials and with conventional methods, but may alternatively be made from other suitable materials and with other suitable methods.
  • the sheave clutch section 32 and the hub clutch section 40 of the preferred embodiment function to provide the sheave clutch surface 34 and the hub clutch surface 42, respectively, for the engagement with the clutch member 24.
  • the sheave clutch section 32 preferably extends radially inward from the sheave member 20. In this manner, the sheave clutch section 32 is preferably made from the same material and with the same methods as the sheave input section 28, but may alternatively be made from other suitable materials and with other suitable methods.
  • the hub clutch section 40 preferably extends radially outward from and axially over the hub output section 36. In this manner, the hub clutch section 40 is preferably made from the same material and with the same methods as the hub output section 36, but may alternatively be made from other suitable materials and with other suitable methods.
  • the hub clutch section 40 preferably partially defines a clutch cavity 54 to contain the clutch member 24.
  • the sheave clutch surface 34 and the hub clutch surface 42 are located substantially adjacent with an axial gap 70 between each other.
  • the sheave clutch surface 34 and the hub clutch surface 42 are preferably inwardly directed (toward the rotational axis of the over-running clutch pulley 10) and are preferably substantially cylindrically shaped.
  • the sheave clutch surface 34 and the hub clutch surface 42 preferably have a similar radial diameter, and a similar axial length. These features allow optimum performance of the clutch member 24.
  • the sheave clutch surface 34 and the hub clutch surface 42 may alternatively have differences with each other on these, or other, design specifications.
  • the clutch member 24 functions to engage the sheave clutch surface 34 and the hub clutch surface 42 upon the acceleration of the sheave member 20 in a first rotational direction relative to the hub member 22, and to disengage the sheave clutch surface 34 and the hub clutch surface 42 upon the deceleration of the sheave member 20 in the first rotational direction relative to the hub member 22.
  • the clutch member 24 is a coil spring 72.
  • the coil spring 72 which is made from conventional materials and with conventional methods, accomplishes the above features by the particular size and orientation of the coil spring 72 within the clutch cavity 54.
  • the clutch member 24 may include other suitable devices that accomplish the above features.
  • the coil spring 72 is preferably designed with a relaxed spring radial diameter that is sized slightly greater than an inner diameter of the sheave clutch surface 34 and the hub clutch surface 42.
  • the coil spring 72 frictionally engages with and exerts an outward force on both the sheave clutch surface 34 and the hub clutch surface 42.
  • the coil spring 72 is preferably oriented within the clutch cavity 54 such that the coils extend axially in the first rotational direction from the sheave clutch surface 34 to the hub clutch surface 42. With this orientation, relative rotational movement of the sheave member 20 and the hub member 22 will result in an unwinding or winding of the clutch member 24.
  • acceleration of the sheave member 20 in the first rotational direction relative to the hub member 22 will bias an unwinding of the coil spring 72 and deceleration of the sheave member 20 in the first rotational direction relative to the hub member 22 will bias a winding of the coil spring 72.
  • the unwinding of the coil spring 72 tends to increase the outward force of the coil spring 72 on the sheave clutch surface 34 and the hub clutch surface 42, thereby providing engagement, or "lock", of the sheave member 20 and the hub member 22.
  • This engagement condition preferably occurs upon the acceleration of the sheave member 20 in the first rotational direction relative to the hub member 22.
  • the winding of the coil spring 72 tends to decrease the outward force of the coil spring 72 on the sheave clutch surface 34 and the hub clutch surface 42, thereby allowing disengagement, or "slip", of the sheave member 20 and the hub member 22.
  • This disengagement condition preferably occurs upon the deceleration of the sheave member 20 in the first rotational direction relative to the hub member 22.
  • the coil spring 72 will lightly rub across the sheave clutch surface 34 or the hub clutch surface 42, which may cause wear of these surfaces.
  • the coil spring 72 will forcefully engage with the sheave clutch surface 34 and the hub clutch surface 42, which may also cause wear of these surfaces.
  • the coating 26 on the sheave clutch surface 34 and the hub clutch surface 42 in addition to providing protection against substantial corrosion, also provides a sufficient surface hardness to resist the wear of these surfaces by the clutch member 24.
  • the sheave member 20 of the preferred embodiment includes a sheave collar section 74 defining a sheave collar surface 76, and the hub clutch section 40 of the preferred embodiment defines a hub flange surface 78.
  • the sheave collar section 74 preferably extends radially inward from the sheave input section 28 and adjacent the sheave clutch section 32.
  • the sheave collar surface 76 and the hub flange surface 78 are preferably located on opposite ends of the clutch cavity 54. In this manner, the sheave collar surface 76 and the hub flange surface 78 cooperate with the sheave clutch surface 34 and the hub clutch surface 42 to actually define the clutch cavity 54.
  • the over-running clutch pulley 10 of the preferred embodiment may, of course, use other suitable devices to insure the proper placement of the clutch member 24 within the clutch cavity 54. These devices may be surfaces defined by other sections of the sheave member 20 or the hub member 22, or surfaces defined by other suitable elements.
  • the coating 26 is disposed on the sheave input surface 30, the sheave clutch surface 34, the hub output surface 38, and the hub clutch surface 42, which protects against substantial corrosion and provides a sufficient surface hardness to resist wear of these surfaces.
  • the coating 26 is also preferably disposed on the sheave collar surface 76 and the hub flange surface 78, which similarly protects against substantial corrosion and provides a sufficient surface hardness to resist wear of these surfaces.
  • the coating 26, however, is also preferably disposed on every surface of the sheave member 20 and the hub member 22, including the sheave bearing surface 60 and the hub bearing surface 64, which minimizes the cost and difficulty in the application of the coating 26.
  • the coating 26 may alternatively be disposed on fewer surfaces.
  • the preferred embodiments of the invention substantially avoid forming, treating, or coating 26 specific surfaces or sections of the overrunning clutch pulley to have a sufficient surface hardness.
  • the coating 26 preferably includes a first layer made from a zinc material, a second layer made from a zinc chromate material and a coloring agent material, and a third layer made from a zinc chromate material.
  • the preferred composition and preferred layering of the coating 26 is well known in the metallurgical field.
  • the coating 26 may alternatively include other suitable compositions and other suitable layering to increase corrosion and wear resistance.
  • the coating 26 is preferably applied to the surfaces of the over-running clutch pulley with conventional methods, but may be alternatively applied with any suitable method.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Mechanical Operated Clutches (AREA)
  • Transmission Devices (AREA)
  • Sealing Devices (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Lubricants (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

L'invention concerne une poulie (10) à roue libre qui comporte un élément de réa (20), un élément de moyeu (22), un élément d'embrayage (24) et un revêtement (26), qui coopèrent de manière à entrer en contact rotatif avec un dispositif d'entrée (12) et un dispositif de sortie (14). L'élément de réa (20) comporte de préférence une partie d'entrée (26) de réa définissant une surface d'entrée (30) de réa conçue pour entrer en contact avec le dispositif (12) d'entrée, et une partie d'embrayage (32) de réa définissant une surface (34) d'embrayage de réa. De façon similaire, l'élément de moyeu (20) comprend de préférence une partie de sortie (36) de moyeu définissant une surface de sortie (38) de moyeu conçue pour entrer en contact avec le dispositif (14) de sortie, et une partie d'embrayage (40) de moyeu définissant une surface (42) d'embrayage de moyeu. Le revêtement (26), qui est placé sur la surface d'entrée (30) de réa, sur la surface d'embrayage (34) de réa, sur la surface de sortie (38) de moyeu et sur la surface d'embrayage (42) de moyeu, protège ces surfaces contre la corrosion et accroît leur résistance à l'usure tout en permettant de réduire notablement le coût de la poulie à roue libre.
PCT/US2001/017520 2000-05-31 2001-05-31 Poulie à roue libre comportant une matière de revêtement WO2001092760A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/381,764 US7052420B2 (en) 2000-05-31 2001-05-31 Over-running clutch pulley with coating material
EP01941714A EP1208318A4 (fr) 2000-05-31 2001-05-31 Poulie roue libre comportant une mati re de rev tement
JP2002500132A JP2003535287A (ja) 2000-05-31 2001-05-31 被膜材を有するオーバーランニングクラッチプーリー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20824400P 2000-05-31 2000-05-31
US60/208,244 2000-05-31

Publications (1)

Publication Number Publication Date
WO2001092760A1 true WO2001092760A1 (fr) 2001-12-06

Family

ID=22773841

Family Applications (10)

Application Number Title Priority Date Filing Date
PCT/US2001/017514 WO2001092745A1 (fr) 2000-05-31 2001-05-28 Poulie a roue libre comportant un element de ressort flottant
PCT/US2001/017639 WO2001092740A1 (fr) 2000-05-31 2001-05-31 Poulie d'embrayage a depassement possedant des moyens influençant un glissement
PCT/US2001/017520 WO2001092760A1 (fr) 2000-05-31 2001-05-31 Poulie à roue libre comportant une matière de revêtement
PCT/US2001/017642 WO2001092747A1 (fr) 2000-05-31 2001-05-31 Poulie d'embrayage a depassement presentant une amelioration de la microdurete de sa surface
PCT/US2001/017522 WO2001092743A1 (fr) 2000-05-31 2001-05-31 Poulie a roue libre comportant une cavite d'embrayage ouverte
PCT/US2001/017640 WO2001092746A1 (fr) 2000-05-31 2001-05-31 Poulie d'embrayage a depassement possedant une cavite d'embrayage fermee
PCT/US2001/017656 WO2001091939A1 (fr) 2000-05-31 2001-05-31 Procede servant a fabriquer une poulie d'embrayage a depassement comportant un element de retenue
PCT/US2001/017521 WO2001092742A1 (fr) 2000-05-31 2001-05-31 Poulie a roue libre comportant un element d'etancheite
PCT/US2001/017462 WO2001091938A1 (fr) 2000-05-31 2001-05-31 Procede de fabrication d'une poulie d'embrayage a roue libre a surface deformable
PCT/US2001/017430 WO2001092741A1 (fr) 2000-05-31 2001-05-31 Poulie a roue libre comprenant un embrayage et un lubrifiant de roulement

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PCT/US2001/017514 WO2001092745A1 (fr) 2000-05-31 2001-05-28 Poulie a roue libre comportant un element de ressort flottant
PCT/US2001/017639 WO2001092740A1 (fr) 2000-05-31 2001-05-31 Poulie d'embrayage a depassement possedant des moyens influençant un glissement

Family Applications After (7)

Application Number Title Priority Date Filing Date
PCT/US2001/017642 WO2001092747A1 (fr) 2000-05-31 2001-05-31 Poulie d'embrayage a depassement presentant une amelioration de la microdurete de sa surface
PCT/US2001/017522 WO2001092743A1 (fr) 2000-05-31 2001-05-31 Poulie a roue libre comportant une cavite d'embrayage ouverte
PCT/US2001/017640 WO2001092746A1 (fr) 2000-05-31 2001-05-31 Poulie d'embrayage a depassement possedant une cavite d'embrayage fermee
PCT/US2001/017656 WO2001091939A1 (fr) 2000-05-31 2001-05-31 Procede servant a fabriquer une poulie d'embrayage a depassement comportant un element de retenue
PCT/US2001/017521 WO2001092742A1 (fr) 2000-05-31 2001-05-31 Poulie a roue libre comportant un element d'etancheite
PCT/US2001/017462 WO2001091938A1 (fr) 2000-05-31 2001-05-31 Procede de fabrication d'une poulie d'embrayage a roue libre a surface deformable
PCT/US2001/017430 WO2001092741A1 (fr) 2000-05-31 2001-05-31 Poulie a roue libre comprenant un embrayage et un lubrifiant de roulement

Country Status (3)

Country Link
EP (10) EP1208314A1 (fr)
JP (10) JP2003535281A (fr)
WO (10) WO2001092745A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104373552A (zh) * 2014-11-28 2015-02-25 中国石油天然气股份有限公司 具有皮带断折保护装置的皮带轮

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120099786A (ko) * 2002-07-26 2012-09-11 리텐스 오토모티브 파트너쉽 디커플러 조립체
EP1590575B1 (fr) 2003-02-04 2010-04-14 Litens Automotive Modulateur de couple de vilebrequin
JP4380234B2 (ja) * 2003-06-19 2009-12-09 Ｎｏｋ株式会社 パワーステアリング用密封装置
PL2273144T3 (pl) 2003-09-22 2013-04-30 Litens Automotive Inc Odprzęgacz wału korbowego
PL1692409T3 (pl) 2003-12-09 2010-10-29 Litens Automotive Inc Ogranicznik skoku sprężyny do odprzęgacza najazdowego
JP5008928B2 (ja) * 2005-10-31 2012-08-22 三ツ星ベルト株式会社 プーリ構造体
JP5507608B2 (ja) * 2005-10-31 2014-05-28 三ツ星ベルト株式会社 プーリ構造体
JP2007139029A (ja) * 2005-11-16 2007-06-07 Ntn Corp 電動アクチュエータ
DE102007038209B3 (de) * 2007-08-13 2009-01-15 Carl Freudenberg Kg Vorrichtung zur Verwendung im Antrieb einer Lichtmaschine
BR112012028053B1 (pt) * 2010-05-25 2021-03-02 Litens Automotive Partnership conjunto desacoplador
GB201107466D0 (en) 2011-05-05 2011-06-15 Loktionov Alexandre Device and method for non-invasive collection of colorectal mucocellular layer and disease detection
FR2995056B1 (fr) * 2012-09-04 2015-07-03 Skf Ab Systeme mecanique a embrayage unidirectionnel, alternateur et procede de fabrication d'un tel systeme
BR102012022803B1 (pt) * 2012-09-10 2017-05-02 Zen S/A Indústria Metalúrgica desacoplador com sistema de roda livre e amortecimento de vibrações
JP6020029B2 (ja) * 2012-10-19 2016-11-02 株式会社豊田自動織機 ベーン型圧縮機
US9140319B2 (en) 2012-11-20 2015-09-22 Litens Automotive Partnership Decoupler with concentric clutching members
US9033832B1 (en) 2014-01-23 2015-05-19 Gates Corporation Isolating decoupler
US9291253B1 (en) 2015-03-24 2016-03-22 Gates Corporation Isolating decoupler
CN107467252B (zh) * 2017-09-08 2020-11-13 勐海悦朋轩茶业有限公司 一种智能化红茶发酵设备
CN112091534A (zh) * 2020-08-12 2020-12-18 芜湖亿联旋压科技有限公司 一种离合器毂的旋压制造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234385A (en) * 1991-07-31 1993-08-10 Ntn Corporation Belt tension adjusting device
US5598913A (en) 1995-06-07 1997-02-04 Ntn Corporation One-way over-running clutch pulley

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2101130A (en) * 1935-06-29 1937-12-07 Packard Motor Car Co Motor vehicle
US2794524A (en) * 1954-09-01 1957-06-04 Curtiss Wright Corp Spring clutch mechanisms
US2906005A (en) * 1956-03-19 1959-09-29 Racine Ind Plant Inc Method of securing needle bearings in nylon gears
US3047300A (en) * 1959-07-01 1962-07-31 Lockheed Aircraft Corp Metal sealing assembly
US3926286A (en) * 1973-02-05 1975-12-16 Reell Precision Mfg Spring grip clutch
US3831723A (en) * 1973-04-18 1974-08-27 Gen Motors Corp Electromagnetic spring-wound clutch
US4725260A (en) * 1987-03-24 1988-02-16 Litens Automotive Inc. Belt tensioner with spring actuated band brake damping
JPH01279117A (ja) * 1988-04-28 1989-11-09 Matsushita Electric Ind Co Ltd 流体軸受装置
US5061090A (en) * 1990-05-31 1991-10-29 Porter-Cable Corporation Shaft and bearing assembly
US5288683A (en) * 1990-10-30 1994-02-22 Chuetsu Metal Works Co., Ltd. Wear-resistant copper alloys and synchronizer rings for automobiles comprising the same
US5156573A (en) * 1991-06-05 1992-10-20 Litens Automotive Partnership Serpentine drive with coil spring-one-way clutch alternator connection
JPH0560144A (ja) * 1991-08-29 1993-03-09 Ntn Corp グリース封入転がり軸受
JP3114378B2 (ja) * 1991-09-20 2000-12-04 日本精工株式会社 転がり軸受
US5325950A (en) * 1992-08-31 1994-07-05 Ingersoll-Rand Company Lubricant remover for a wrap spring clutch
DE9417045U1 (de) * 1994-10-22 1994-12-15 INA Wälzlager Schaeffler KG, 91074 Herzogenaurach Vorrichtung zur Dämpfung von Drehschwingungen in einem Antriebsstrang
JPH08317599A (ja) * 1995-05-22 1996-11-29 Mitsubishi Electric Corp 車両用発電機
DE19535889A1 (de) * 1995-09-27 1997-04-03 Schaeffler Waelzlager Kg Freilaufkupplung für einen Lichtmaschinenantrieb
SE9602257L (sv) * 1996-06-07 1997-12-08 Plannja Hardtech Ab Sätt att framställa ståldetalj
US5822859A (en) * 1996-10-07 1998-10-20 General Motors Corporation Bearing with integrally retained separable race
JPH11218144A (ja) * 1997-11-17 1999-08-10 Nippon Seiko Kk ワンウェイクラッチ内蔵転がり軸受
JP4327929B2 (ja) * 1999-03-03 2009-09-09 協同油脂株式会社 低騒音性に優れたウレアグリースの製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234385A (en) * 1991-07-31 1993-08-10 Ntn Corporation Belt tension adjusting device
US5598913A (en) 1995-06-07 1997-02-04 Ntn Corporation One-way over-running clutch pulley

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1208318A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104373552A (zh) * 2014-11-28 2015-02-25 中国石油天然气股份有限公司 具有皮带断折保护装置的皮带轮

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WO2001091938A1 (fr) 2001-12-06
WO2001092746A1 (fr) 2001-12-06
JP2003535281A (ja) 2003-11-25
JP2003535273A (ja) 2003-11-25
EP1208311A1 (fr) 2002-05-29
EP1208316A1 (fr) 2002-05-29
JP2004514092A (ja) 2004-05-13
JP2003535280A (ja) 2003-11-25
JP2003535282A (ja) 2003-11-25
WO2001092740A1 (fr) 2001-12-06
EP1285177A1 (fr) 2003-02-26
WO2001092742A1 (fr) 2001-12-06
JP2003535287A (ja) 2003-11-25
EP1208310A1 (fr) 2002-05-29
WO2001091939A1 (fr) 2001-12-06
JP2004501326A (ja) 2004-01-15
EP1284831A1 (fr) 2003-02-26
EP1284832A1 (fr) 2003-02-26
EP1208314A1 (fr) 2002-05-29
EP1208310A4 (fr) 2006-01-18
EP1208312A1 (fr) 2002-05-29
JP2003535279A (ja) 2003-11-25
EP1208315A4 (fr) 2006-01-18
EP1208318A1 (fr) 2002-05-29
JP2003535283A (ja) 2003-11-25
WO2001092741A1 (fr) 2001-12-06
WO2001092743A1 (fr) 2001-12-06
WO2001092747A1 (fr) 2001-12-06
EP1208315A1 (fr) 2002-05-29
EP1208318A4 (fr) 2006-01-18
WO2001092745A1 (fr) 2001-12-06
JP2003535278A (ja) 2003-11-25

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