WO2004036092A1 - Moyen d'entrainement rotatif et mecanisme d'enclenchement equipe de ce moyen d'entrainement - Google Patents

Moyen d'entrainement rotatif et mecanisme d'enclenchement equipe de ce moyen d'entrainement Download PDF

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Publication number
WO2004036092A1
WO2004036092A1 PCT/DE2003/003334 DE0303334W WO2004036092A1 WO 2004036092 A1 WO2004036092 A1 WO 2004036092A1 DE 0303334 W DE0303334 W DE 0303334W WO 2004036092 A1 WO2004036092 A1 WO 2004036092A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
abutments
gear segment
spring support
gear
Prior art date
Application number
PCT/DE2003/003334
Other languages
German (de)
English (en)
Inventor
James Antony Lethbridge
Burkhard Pollak
Ian Richard Joseph Bates
Terry Morgan
Original Assignee
Luk Lamellen Und Kupplungsbau Beteiligungs Kg
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 Luk Lamellen Und Kupplungsbau Beteiligungs Kg filed Critical Luk Lamellen Und Kupplungsbau Beteiligungs Kg
Priority to DE10392948.7T priority Critical patent/DE10392948B4/de
Priority to AU2003273748A priority patent/AU2003273748A1/en
Publication of WO2004036092A1 publication Critical patent/WO2004036092A1/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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3076—Selector shaft assembly, e.g. supporting, assembly or manufacturing of selector or shift shafts; Special details thereof
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3089—Spring assisted shift, e.g. springs for accumulating energy of shift movement and release it when clutch teeth are aligned
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor

Definitions

  • the present invention relates to rotatable drive means and, more particularly, to rotatable drive means, such as those used in gear shift mechanisms when limited angular movement is required, the drive means comprising a drive pinion which meshes with a gear segment.
  • the present invention provides a rotatable drive in which the elastic element is introduced into the gear segment.
  • the elastic member of the present invention also allows the elastic member to be preloaded and deflection controlled.
  • a rotatable drive includes a drive pinion and a gear segment that meshingly engages the drive pinion, an element that is mounted for rotation coaxial with the drive segment, a spring means that is mounted on either the gear segment or the element Abutment means on the other of the gear segment and member that engages the spring means to bias the member to a central position relative to the gear segment, the spring means providing a restoring force toward the central position upon relative movement of the element with respect to the Gear segment exerts, and a stop means that is provided to the relative Limit movement of the element with respect to the gear segment in either direction away from the central position, the element being drivably connected to an output shaft.
  • relative movement of the element with respect to the gear segment under the influence of the spring provides the elasticity to limit the load acting on the driven components and / or to preload the components.
  • the element and the spring means are mounted within a cavity which is formed in the gear segment, thereby producing a compact arrangement which, for example, can be conventionally installed in a gear selection mechanism of a motor vehicle.
  • Figure 1 schematically illustrates a transmission of a motor vehicle
  • Figure 2 shows a gear shift mechanism for the transmission shown in Figure 1 which employs a rotatable drive mechanism in accordance with the present invention
  • Figure 3 is an exploded view of the mechanism shown in Figure 2;
  • Figure 4 is a view of the gear segment of the mechanism shown in Figure 2;
  • Figure 5 is a rear elevation view through the mechanism along the line X-X of Figure 2, showing the mechanism in a first position;
  • Figure 5a is an enlarged view of the encircled portion of Figure 5;
  • Figure 6 is a rear elevation view through the mechanism along line XX of Figure 2, showing the mechanism in a second position;
  • Figure 6a is an enlarged view of the encircled portion of Figure 6;
  • Figure 7 is a rear elevation view through the mechanism along the line X-X of Figure 2, showing the mechanism in a third position;
  • Figure 7a is an enlarged view of the encircled portion of Figure 7.
  • a clutch 14 when engaged, transmits torque between the output shaft of the engine 10 and an input shaft 20 of a transmission 12.
  • the engagement of the clutch 14 is controlled in a conventional manner by the sequentially controlled clutch cylinder 16.
  • the drive shaft 20 has six gears 22, 23, 24, 25, 26 and 27 mounted thereon for rotation therewith.
  • the gears 22, 23, 24, 25 and 26 mesh with the gears 32, 33, 34, 35 and 36 and gear 27 meshes with gear 37 by means of an intermediate gear 38.
  • the gears 32, 33, 34, 35, 36 and 37 are mounted on a countershaft 40 which is parallel to, but spaced from, the drive shaft 20.
  • the gears 32, 33, 34, 35, 36 and 37 are mounted on the countershaft 40 for rotation relative to the latter.
  • the gears 32 and 37 are selected for rotation with the countershaft 40 by means of a synchronous switching unit 42; the gears 33 and 34 are selected to be engaged for rotation with the countershaft 40 by means of a synchronous switching unit 44; and the gears 35 and 36 are selected for rotation with the countershaft 40 by means of a synchronous switching unit 46.
  • the gears 22 and 32 are tuned to provide a first gear; gears 23 and 33 a second gear; gears 24 and 34 a third gear; gears 25 and 35 a fourth gear; gears 26 and 36 a sixth gear; while the intermediate gear 38 reverses the direction of rotation so that the gears 27 and 37 provide a reverse gear.
  • the countershaft 40 is for drive purposes with an output shaft 50 from the transmission
  • the synchronous switching units 42, 44 and 46 are controlled by the guide rulers 70, 72 and 74, respectively, with axial movement of the switching rulers 70, 72 and 74 moving the synchronous switching units 42, 44 and 46 axially to the countershaft 40.
  • the synchronous switching unit 42 (as shown in FIG. 1) can be moved to the left in order to engage the gearwheel 37 with the countershaft 40, whereby the reverse gear is engaged; or moved to the right to engage gear 32 with countershaft 40, thereby engaging first gear.
  • the synchronous switching unit 44 can be moved to the left to engage the gear 33 with the countershaft 40 to engage the second gear, or to the right to engage the gear 34 with the countershaft 40 to engage the third gear.
  • the synchronous switching unit 46 can be moved to the left to engage the gear 35 with the countershaft 40 to engage the fourth gear, or to the right to engage the gear 36 with the countershaft 40 to engage the fifth gear.
  • each of the rulers 70, 72 and 74 has a notch 76, the notches 76 in the rulers 70, 72 and 74 in the transverse direction of the
  • Shifting rulers 70, 72 and 74 are aligned when the synchronizing shifting units 42, 44 and 46 are in a central, neutral position in which none of the gear wheels 32,
  • Shift rulers 70, 72 and 74 rotate, the rotation of shift finger 78, the shift ruler with which it is engaged, causing it to move axially in one direction or the other depending on the direction of rotation.
  • the shaft 80 is rotated in one direction or the other by means of a drive mechanism comprising a drive pinion 110 which is drivably connected to a drive means, for example an electric motor, by the drive shaft 112.
  • a drive mechanism comprising a drive pinion 110 which is drivably connected to a drive means, for example an electric motor, by the drive shaft 112.
  • the drive pinion 110 meshes with a gear segment 120 to provide limited angular rotation of an output shaft 80 in each direction.
  • the gear segment 120 includes a toothed portion 122 which is concentric with an axial bore 124.
  • Gear segment 120 also defines an axially extending cavity 126 of segment-like cross-section.
  • the opening 128 of the cavity 126 is partially circular, being coaxial with the bore 124.
  • the outer curved wall 130 of the cavity 126 has a circumferential groove 132 on its inner diameter with the central portion of the walls defining the groove 132 removed to define two pairs of abutments 134, the abutments 134 of each pair of Abutments are arranged adjacent to the axially inner and outer boundaries of the cavity 126.
  • a spring receptacle 140 has a pin formation 142 which is rotatably inserted in the bore 124 of the gear segment 120.
  • a segmented flange formation 144 is provided at the end of the pin 142, the segmented flange 144 being dimensioned to be arranged within the cavity 126.
  • the angular dimension of the segment-shaped flange 144 is less than that of the cavity 126, so as to allow a relative rotation of the spring support 140 with respect to the gear segment 120.
  • a pair of abutments 146 are provided on the spring support 140, a U-shaped spring 148 being disposed between the abutments 146 and the spring 148 being compressed with a predetermined bias.
  • the abutments 146 extend into the groove 132 in the cavity 126 and correspond in their angular position to the abutments 134 which are formed by the walls of the groove 132. In this way, the legs 150 of the spring 148, when in a central position, as shown in FIG. 5, engage in the abutments 146 on the spring support 140 and the abutments 132 on the gear segment 120.
  • the top wall defining the groove 132 is cut away at one end 136 so that when the spring support 140 is rotated toward that end 132 an abutment 146 with the cut-out The area at the end 136 is aligned, while the other abutment 146 is aligned with the central cut-out section, as a result of which the spring carrier 140 can be inserted axially into the cavity 126 and then rotated so that the abutment 146 engages in the groove 132.
  • An end plate 152 is configured to secure the spring bracket 140 to hold the spring 148 in place.
  • the end plate 152 has a pair of abutments 154 which engage the outer surfaces of the abutments 146 on the spring bracket 140 so that the abutments 154 engage the radial walls 156 of the cavity 126 by the angular rotation of the spring bracket 140 with respect to the gear segment Limit 120.
  • the shaft 80 drivably engages a correspondingly shaped shoe 162 in the pin section 142 of the spring support 140 for rotation therewith.
  • the shift finger 78 In order to move the switching rulers 70, 72 and 74 axially to one of the gears 32, 37; 33, 34; or 35, 36 associated with them, the shift finger 78 is brought into alignment with the corresponding shift rod 70, 72 or 74. The shift finger 78 is then rotated in one or the other direction by means of the drive pinion 110 and the gear segment 120 to move the shift ruler 70, 72, 74 in the appropriate direction in order to engage the required gear associated with it.
  • the U-shaped spring 148 is preloaded between the abutments 146 on the spring support 140, so that the drive from the gear segment 120, the abutments 134 and the legs of the spring 148 to the abutments 146 on the spring support 140 and thereby to the output shaft with a low input torque 80 is transmitted without load-related bending of the spring 148.
  • gear segment 120 compresses "U” spring 148, causing relative movement between gear segment 120 and spring bracket 140 causes, as shown in Figure 6.
  • the relative movement between the gear segment 120 and the spring support 140 is limited by the engagement of the abutment 154 against the wall of the cavity 126, as shown in FIG.
  • the compression of the spring 148 thereby cushions the engagement of the synchronous switching units 42, 44 and 46, whereby damage by applying excessive loads to them is avoided.
  • the spring 148 is mounted with respect to the output shaft 80 and is deflected by the movement of the gear segment 120, it will be appreciated that the spring 148 alternatively rests on the Gear segment 120 can be attached so that it is deflected in response to the movement of the output shaft 80.
  • the output shaft 80 can be of any non-circular cross-section that allows axial movement of the shift finger 78, but transmits rotatable movement thereon.
  • the output shaft 80 in addition to being rectangular in cross-section, may have a hexagonal cross-section, a grooved or non-circular cross-section with a flat that extends axially thereon.
  • the above embodiment of the invention uses the elasticity in the drive mechanism to cushion loads that act on the components driven by it, the elasticity can alternatively or additionally be used to bias the components into engagement.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

L'invention concerne un entraînement rotatif comprenant un pignon d'entraînement (110) et un segment de roue dentée (120), s'engrenant dans ce pignon d'entraînement (110), un élément (140) monté coaxialement par rapport au segment d'entraînement (120) de façon rotative, un moyen ressort (148), monté soit sur le segment de roue dentée (120) soit sur l'élément (140), et un moyen palier de butée (134, 136) soit sur le segment de roue dentée (120) soit sur l'élément (140) en prise avec le moyen ressort (148) destiné à précontraindre cet élément (140) dans une position intermédiaire par rapport au segment de roue dentée (120). Selon ladite invention, ce moyen ressort (148) exerce une force de rappel en direction de cette position intermédiaire lors du mouvement relatif de l'élément (140) par rapport au segment de roue dentée (120) et un moyen de butée (154) est prévu pour limiter le mouvement relatif de l'élément (140) par rapport au segment de roue dentée (120) dans chacune des deux directions éloignées de ladite position intermédiaire, cet élément (140) étant relié à un arbre d'entraînement (80) de façon à pouvoir effectuer un entraînement.
PCT/DE2003/003334 2002-10-10 2003-10-08 Moyen d'entrainement rotatif et mecanisme d'enclenchement equipe de ce moyen d'entrainement WO2004036092A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10392948.7T DE10392948B4 (de) 2002-10-10 2003-10-08 Drehbarer Antrieb und Schaltmechanismus mit diesem drehbaren Antrieb
AU2003273748A AU2003273748A1 (en) 2002-10-10 2003-10-08 Rotating drive means and switching mechanism comprising said drive means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0223531.5 2002-10-10
GB0223531A GB2394023B (en) 2002-10-10 2002-10-10 Rotary drive means

Publications (1)

Publication Number Publication Date
WO2004036092A1 true WO2004036092A1 (fr) 2004-04-29

Family

ID=9945640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/003334 WO2004036092A1 (fr) 2002-10-10 2003-10-08 Moyen d'entrainement rotatif et mecanisme d'enclenchement equipe de ce moyen d'entrainement

Country Status (4)

Country Link
AU (1) AU2003273748A1 (fr)
DE (1) DE10392948B4 (fr)
GB (1) GB2394023B (fr)
WO (1) WO2004036092A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2373106T3 (es) * 2004-07-01 2012-01-31 Yamaha Hatsudoki Kabushiki Kaisha Dispositivo de control de cambio para vehículo del tipo de montar a horcajadas, y vehículo del tipo de montar a horcajadas.
DE102008060364A1 (de) * 2008-12-03 2010-06-10 GM Global Technology Operations, Inc., Detroit Schaltgetriebe
JP6691162B2 (ja) * 2018-03-29 2020-04-28 株式会社ユニバンス 変速機構

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579532A1 (fr) * 1992-07-17 1994-01-19 Société Anonyme dite: REGIE NATIONALE DES USINES RENAULT Dispositif d'assistance mécanique au passage de vitesses
US5810144A (en) * 1995-07-15 1998-09-22 Fichtel & Sachs Ag Clutch actuator for a motor vehicle friction clutch
US6003649A (en) * 1996-04-03 1999-12-21 Luk Getreibe-Systeme Gmbh Method and apparatus for actuating a transmission
FR2795831A1 (fr) * 1999-06-30 2001-01-05 Valeo Actionneur electromecanique a effort controle et application notamment a la commande d'une boite de vitesses par exemple de vehicule automobile
DE19758713A1 (de) * 1996-09-23 2002-05-16 Zf Sachs Ag Stelleinrichtung eines in zwei Bewegungsarten bewegbaren Ausgangsteils

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430317Y2 (fr) * 1976-04-07 1979-09-25
US5357822A (en) 1993-04-13 1994-10-25 Eaton Corporation Transmission shifting mechanism and force attenuator therefor
JPH0711825A (ja) * 1993-04-27 1995-01-13 Nippondenso Co Ltd ドアロック駆動装置
FR2752282B1 (fr) 1996-08-06 2001-08-17 Luk Getriebe Systeme Gmbh Vehicule a boite de vitesses automatique
JPH1141858A (ja) * 1997-07-17 1999-02-12 Oi Seisakusho Co Ltd ドアロック用アクチュエータ
DE19851466A1 (de) 1998-11-09 2000-05-11 Mannesmann Sachs Ag Stellglied
DE10206561B4 (de) 2001-02-23 2017-03-02 Schaeffler Technologies AG & Co. KG Doppelkupplungsgetriebe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579532A1 (fr) * 1992-07-17 1994-01-19 Société Anonyme dite: REGIE NATIONALE DES USINES RENAULT Dispositif d'assistance mécanique au passage de vitesses
US5810144A (en) * 1995-07-15 1998-09-22 Fichtel & Sachs Ag Clutch actuator for a motor vehicle friction clutch
US6003649A (en) * 1996-04-03 1999-12-21 Luk Getreibe-Systeme Gmbh Method and apparatus for actuating a transmission
DE19758713A1 (de) * 1996-09-23 2002-05-16 Zf Sachs Ag Stelleinrichtung eines in zwei Bewegungsarten bewegbaren Ausgangsteils
FR2795831A1 (fr) * 1999-06-30 2001-01-05 Valeo Actionneur electromecanique a effort controle et application notamment a la commande d'une boite de vitesses par exemple de vehicule automobile

Also Published As

Publication number Publication date
AU2003273748A1 (en) 2004-05-04
GB2394023A (en) 2004-04-14
DE10392948D2 (de) 2005-04-21
GB2394023B (en) 2005-11-09
DE10392948B4 (de) 2018-08-16
GB0223531D0 (en) 2002-11-13

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