WO1997048915A1 - Systeme d'entrainement - Google Patents

Systeme d'entrainement Download PDF

Info

Publication number
WO1997048915A1
WO1997048915A1 PCT/CH1996/000447 CH9600447W WO9748915A1 WO 1997048915 A1 WO1997048915 A1 WO 1997048915A1 CH 9600447 W CH9600447 W CH 9600447W WO 9748915 A1 WO9748915 A1 WO 9748915A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
hub
bracket
spring
drive system
Prior art date
Application number
PCT/CH1996/000447
Other languages
German (de)
English (en)
Inventor
Peter Iten
Laurent MÜLLER
Peter Ammann
Original Assignee
Baumann & Cie 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 Baumann & Cie Ag filed Critical Baumann & Cie Ag
Publication of WO1997048915A1 publication Critical patent/WO1997048915A1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • F16D7/021—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with radially applied torque-limiting friction surfaces

Definitions

  • the present invention relates to a drive system with a friction clutch connected between two rotating drive elements arranged on a common axis, in which the one drive element forms part of a shaft or is connected to it in a rotationally fixed manner, and the other drive element is mounted on said shaft, wherein the transmission of the drive between the two drive elements is interrupted when a predetermined torque is exceeded by the friction clutch.
  • Drive systems of this type are known in a wide variety of designs with more or less complicated slip clutches, in particular in the case of drives of elements which come to a stop after a certain path has been carried out.
  • the slip clutch should ensure that the loaded motor is not damaged until the motor is switched off.
  • the object of the present invention is to create a drive system with the simplest dear! branch coupling and the smallest possible space requirement. This object is achieved according to the invention in a drive system of the type defined at the outset by the features according to the characterizing part of claim 1.
  • the drive system according to the invention is particularly suitable for electrically adjustable exterior rear-view mirrors of vehicles.
  • FIGS. 1A and TB show a variant of the embodiment according to FIGS. 1A and TB;
  • 4A and 4B show a variant of the embodiment according to FIGS. 3A and 3B.
  • gear B is mounted on the hub E of gear A and axially fixed by the locking ring C.
  • An open bracket D which lies on the hub E of the gear A, serves as the transmission element. Before assembly, this bracket has a smaller diameter than the hub E. The bracket is thus fixed on the one hand by friction against rotation on the hub and on the other hand is held in a form-fitting manner, since the bracket encloses the hub with an angle of more than 180 °.
  • the gear wheel B axially protrudes a segment F which engages in the opening of the bracket D.
  • the torque is thus transmitted in a form-fitting manner between the bracket D and the segment F, but only up to the sliding moment of the bracket D on the hub E.
  • This sliding torque is dependent on various parameters, such as the difference in diameter of the bracket before assembly and hub, coefficient of friction, length of the bracket s.
  • gears shown instead of the gears shown, other elements can also occur, such as chain wheels, toothed belt wheels, etc.
  • the bracket D can also lie on the hub and the engaging cam F on the hub A.
  • FIGS. 1A and IB show another possible arrangement (variant of FIGS. 1A and IB), in which the bracket D is not placed on a hub of the one gear wheel but in a sleeve G. So the functional surface of the bracket is the outside and not the inside. The cam F engaging in the opening of the bracket can thus be worked directly out of the shaft.
  • This construction has the advantage that the functional surfaces (friction surfaces of the clutch) are better protected and torque transmission is possible via a stiffer cam.
  • the bow made of bent flat material can be replaced by other spring elements.
  • a wrap spring I is suitable, which is mounted on the hub with pretension (the hub diameter is larger than the unstressed spring inner diameter) and has two ends K bent outwards, between which the cam F ei ngrei ft.
  • FIGS. 4A and 4B show, in a variant of the embodiment according to FIGS. 3A and 3B the wrap spring I with its outer diameter can also act in a sleeve instead of on a shaft / hub.
  • the two spring ends K must be bent inwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un système d'entraînement, dans lequel l'accouplement à friction entre deux éléments d'entraînement (A, B) disposés sur un axe commun, présente un élément ressort (D) plaqué sous l'effet de la force d'un ressort (précontrainte) contre une surface périphérique de l'un des éléments d'entraînement (A), ainsi qu'un organe d'entraînement (F) solidaire de l'autre élément d'entraînement (B) et relié à l'élément ressort (D) par une liaison d'entraînement.
PCT/CH1996/000447 1996-06-19 1996-12-18 Systeme d'entrainement WO1997048915A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH152896 1996-06-19
CH1528/96 1996-06-19

Publications (1)

Publication Number Publication Date
WO1997048915A1 true WO1997048915A1 (fr) 1997-12-24

Family

ID=4212554

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1996/000447 WO1997048915A1 (fr) 1996-06-19 1996-12-18 Systeme d'entrainement

Country Status (2)

Country Link
DE (1) DE29708453U1 (fr)
WO (1) WO1997048915A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2162544A1 (es) * 1998-12-31 2001-12-16 Fagor S Coop Acoplamiento para la transmision de la rotacion en un motor sincrono.
WO2005040627A1 (fr) * 2003-10-17 2005-05-06 Robert Bosch Gmbh Dispositif d'embrayage de surcharge, disque d'embrayage et roue dentee d'entrainement
EP3032020A1 (fr) * 2014-12-11 2016-06-15 U-Shin Deutschland Zugangssysteme GmbH Dispositif d'actionneur pour l'activation automatique de la porte d'un véhicule motorisé

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222246A (en) * 1978-12-11 1980-09-16 Roller Bearing Company Of America Slip clutch
JPS591860A (ja) * 1982-06-25 1984-01-07 Kushiyama Matsuichi 減速装置
EP0204621A1 (fr) * 1985-05-31 1986-12-10 Nacam Dispositif de blocage de rotation à limitation de couple pour colonne de direction de véhicule automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222246A (en) * 1978-12-11 1980-09-16 Roller Bearing Company Of America Slip clutch
JPS591860A (ja) * 1982-06-25 1984-01-07 Kushiyama Matsuichi 減速装置
EP0204621A1 (fr) * 1985-05-31 1986-12-10 Nacam Dispositif de blocage de rotation à limitation de couple pour colonne de direction de véhicule automobile

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
K. DEN TEX: "STABLE TORQUE-LIMITING CLUTCH", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 10, no. 1, 1 June 1967 (1967-06-01), pages 72, XP002025401 *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 83 (M - 290)<1520> 17 April 1984 (1984-04-17) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2162544A1 (es) * 1998-12-31 2001-12-16 Fagor S Coop Acoplamiento para la transmision de la rotacion en un motor sincrono.
WO2005040627A1 (fr) * 2003-10-17 2005-05-06 Robert Bosch Gmbh Dispositif d'embrayage de surcharge, disque d'embrayage et roue dentee d'entrainement
US7594856B2 (en) 2003-10-17 2009-09-29 Robert Bosch Gmbh Overload clutch device, clutch disk, and driving toothed wheel
EP3032020A1 (fr) * 2014-12-11 2016-06-15 U-Shin Deutschland Zugangssysteme GmbH Dispositif d'actionneur pour l'activation automatique de la porte d'un véhicule motorisé

Also Published As

Publication number Publication date
DE29708453U1 (de) 1997-09-04

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