CH496184A - Friction coupling mechanism - Google Patents

Friction coupling mechanism

Info

Publication number
CH496184A
CH496184A CH1297169A CH1297169A CH496184A CH 496184 A CH496184 A CH 496184A CH 1297169 A CH1297169 A CH 1297169A CH 1297169 A CH1297169 A CH 1297169A CH 496184 A CH496184 A CH 496184A
Authority
CH
Switzerland
Prior art keywords
branches
shoulder
friction
lugs
spring
Prior art date
Application number
CH1297169A
Other languages
French (fr)
Inventor
Gerber Bernard
Golay Jean-Pierre
Original Assignee
Record Watch Co S A
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 Record Watch Co S A filed Critical Record Watch Co S A
Priority to CH1297169A priority Critical patent/CH496184A/en
Publication of CH496184A publication Critical patent/CH496184A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • F16D7/024Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces
    • F16D7/025Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching surfaces, e.g. discs

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

  

  
 



  Mécanisme d'accouplement à friction
 Il est connu d'utiliser des ressorts de friction dans le but de réaliser, soit un accouplement élastique entre deux organes, soit d'exercer une action de freinage ou d'entraînement ou encore pour supprimer des jeux accidentels entre des pièces.



   La présente invention concerne un mécanisme d'accouplement à friction, soit d'entraînement, présentant l'avantage d'être à la fois de construction simple et de faible encombrement tout en permettant de transmettre des couples relativements importants, grâce à la disposition judicieuse des éléments transmettant ce couple d'un organe rotatif à un second tel organe.



   Dans ce but, le mécanisme d'accouplement à friction selon la présente invention est caractérisé en ce que   l'un    de ses deux organes possède un épaulement circulaire intérieur prenant appui par sa face extérieure, contre l'autre organe, alors que sur sa face intérieure prennent appui les extrémités des branches d'un ressort de friction en forme d'étoile à au moins deux branches, que des ergots du second organe rendent rotativement solidaire de ce dernier, la pression desdites branches sur la face intérieure de l'épaulement étant rendue réglable au moyen d'un organe de serrage axialement solidaire du second organe.



   Le dessin annexé représente une forme d'exécution de l'objet de l'invention donnée à titre d'exemple.



   La fig. 1 en est une coupe axiale;
 la fig. 2 en est une vue en plan correspondante.



   L'organe 1 supposé ici être   1 organe    entraîné, possède un épaulement intérieur 2, prenant appui par sa face extérieure contre le second organe 3, supposé ici être l'organe entraîneur.



   Un ressort à friction 4 en forme d'étoile exerce axialement, par l'extrémité libre de ses branches, une pression sur la face intérieure de l'épaulement de l'organe 1.



   Dans la forme d'exécution représentée, le ressort à friction 4 possède quatre branches. La pression exercée par les extrémités de ces branches sur la face intérieure de l'épaulement de l'organe 1 est rendue réglable au moyen d'une vis de serrage vissée axialement dans l'organe 3 et traversant l'étoile en son centre.



   La transmission du mouvement entre l'organe 3 que   l'on    a supposé entraîneur et le ressort de friction 4 est assurée par une série d'ergots 5 émergeant dudit organe entraîneur et venant se placer entre les branches du ressort.



   Dans le but de diminuer l'effort exercé par les ergots de l'organe 3 sur les branches du ressort de friction 4 pour un couple donné, on a, comme le montre la fig. 1, disposé les ergots 5 sur le plus grand diamètre possible, c'est-à-dire tangentiellement au diamètre intérieur de l'épaulement de l'organe 2. De ce fait, ceux-ci agissent au voisinage des extrémités des branches du ressort diminuant ainsi l'effort exercé par lesdits ergots sur lesdites branches.



   REVENDICATION



   Mécanisme d'accouplement à friction, caractérisé en ce que   l'un    de ses deux organes possède un épaulement circulaire intérieur prenant appui par sa face extérieure contre l'autre organe, alors que sur sa face intérieure prennent appui les extrémités des branches d'un ressort de friction en forme d'étoile à au moins deux branches, que des ergots du second organe rendent rotativement solidaire de ce dernier, la pression desdites branches sur la face intérieure de l'épaulement étant rendue réglable au moyen d'un organe de serrage axialement solidaire du second organe.



   SOUS-REVENDICATIONS
 1. Mécanisme selon la revendication, caractérisé en ce que le ressort de friction comporte quatre branches. 

**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.



   



  
 



  Friction coupling mechanism
 It is known to use friction springs in order to achieve either an elastic coupling between two members, or to exert a braking or driving action or else to eliminate accidental play between parts.



   The present invention relates to a friction coupling mechanism, that is to say a drive, having the advantage of being both of simple construction and of small size while allowing the transmission of relatively large torques, thanks to the judicious arrangement of the elements transmitting this torque from a rotary member to a second such member.



   For this purpose, the friction coupling mechanism according to the present invention is characterized in that one of its two members has an inner circular shoulder bearing on its outer face, against the other member, while on its face the ends of the branches of a star-shaped friction spring with at least two branches, which lugs of the second member make rotatably integral with the latter, the pressure of said branches on the inner face of the shoulder being made adjustable by means of a clamping member axially secured to the second member.



   The appended drawing represents an embodiment of the object of the invention given by way of example.



   Fig. 1 is an axial section thereof;
 fig. 2 is a corresponding plan view.



   The member 1 here assumed to be 1 driven member, has an inner shoulder 2, bearing by its outer face against the second member 3, here assumed to be the driving member.



   A star-shaped friction spring 4 axially exerts, through the free end of its branches, a pressure on the inner face of the shoulder of the member 1.



   In the embodiment shown, the friction spring 4 has four branches. The pressure exerted by the ends of these branches on the inner face of the shoulder of member 1 is made adjustable by means of a tightening screw screwed axially into member 3 and passing through the star at its center.



   The transmission of the movement between the member 3 which has been assumed to be a driver and the friction spring 4 is provided by a series of lugs 5 emerging from said driver member and coming to be placed between the branches of the spring.



   In order to reduce the force exerted by the lugs of the member 3 on the branches of the friction spring 4 for a given torque, we have, as shown in FIG. 1, arranged the pins 5 on the largest possible diameter, that is to say tangentially to the internal diameter of the shoulder of the member 2. As a result, they act in the vicinity of the ends of the branches of the spring thus reducing the force exerted by said lugs on said branches.



   CLAIM



   Friction coupling mechanism, characterized in that one of its two members has an inner circular shoulder bearing by its outer face against the other member, while on its inner face the ends of the branches of a star-shaped friction spring with at least two branches, which lugs of the second member make rotatably integral with the latter, the pressure of said branches on the inner face of the shoulder being made adjustable by means of a clamping member axially integral with the second member.



   SUB-CLAIMS
 1. Mechanism according to claim, characterized in that the friction spring has four branches.

** ATTENTION ** end of DESC field can contain start of CLMS **.



   

 

Claims (1)

**ATTENTION** debut du champ CLMS peut contenir fin de DESC **. ** ATTENTION ** start of field CLMS can contain end of DESC **. Mécanisme d'accouplement à friction Il est connu d'utiliser des ressorts de friction dans le but de réaliser, soit un accouplement élastique entre deux organes, soit d'exercer une action de freinage ou d'entraînement ou encore pour supprimer des jeux accidentels entre des pièces. Friction coupling mechanism It is known to use friction springs in order to achieve either an elastic coupling between two members, or to exert a braking or driving action or else to eliminate accidental play between parts. La présente invention concerne un mécanisme d'accouplement à friction, soit d'entraînement, présentant l'avantage d'être à la fois de construction simple et de faible encombrement tout en permettant de transmettre des couples relativements importants, grâce à la disposition judicieuse des éléments transmettant ce couple d'un organe rotatif à un second tel organe. The present invention relates to a friction coupling mechanism, that is to say a drive, having the advantage of being both of simple construction and of small size while allowing the transmission of relatively large torques, thanks to the judicious arrangement of the elements transmitting this torque from a rotary member to a second such member. Dans ce but, le mécanisme d'accouplement à friction selon la présente invention est caractérisé en ce que l'un de ses deux organes possède un épaulement circulaire intérieur prenant appui par sa face extérieure, contre l'autre organe, alors que sur sa face intérieure prennent appui les extrémités des branches d'un ressort de friction en forme d'étoile à au moins deux branches, que des ergots du second organe rendent rotativement solidaire de ce dernier, la pression desdites branches sur la face intérieure de l'épaulement étant rendue réglable au moyen d'un organe de serrage axialement solidaire du second organe. For this purpose, the friction coupling mechanism according to the present invention is characterized in that one of its two members has an inner circular shoulder bearing on its outer face, against the other member, while on its face the ends of the branches of a star-shaped friction spring with at least two branches, which lugs of the second member make rotatably integral with the latter, the pressure of said branches on the inner face of the shoulder being made adjustable by means of a clamping member axially secured to the second member. Le dessin annexé représente une forme d'exécution de l'objet de l'invention donnée à titre d'exemple. The appended drawing represents an embodiment of the object of the invention given by way of example. La fig. 1 en est une coupe axiale; la fig. 2 en est une vue en plan correspondante. Fig. 1 is an axial section thereof; fig. 2 is a corresponding plan view. L'organe 1 supposé ici être 1 organe entraîné, possède un épaulement intérieur 2, prenant appui par sa face extérieure contre le second organe 3, supposé ici être l'organe entraîneur. The member 1 here assumed to be 1 driven member, has an inner shoulder 2, bearing by its outer face against the second member 3, here assumed to be the driving member. Un ressort à friction 4 en forme d'étoile exerce axialement, par l'extrémité libre de ses branches, une pression sur la face intérieure de l'épaulement de l'organe 1. A star-shaped friction spring 4 axially exerts, through the free end of its branches, a pressure on the inner face of the shoulder of the member 1. Dans la forme d'exécution représentée, le ressort à friction 4 possède quatre branches. La pression exercée par les extrémités de ces branches sur la face intérieure de l'épaulement de l'organe 1 est rendue réglable au moyen d'une vis de serrage vissée axialement dans l'organe 3 et traversant l'étoile en son centre. In the embodiment shown, the friction spring 4 has four branches. The pressure exerted by the ends of these branches on the inner face of the shoulder of member 1 is made adjustable by means of a tightening screw screwed axially into member 3 and passing through the star at its center. La transmission du mouvement entre l'organe 3 que l'on a supposé entraîneur et le ressort de friction 4 est assurée par une série d'ergots 5 émergeant dudit organe entraîneur et venant se placer entre les branches du ressort. The transmission of the movement between the member 3 which has been assumed to be a driver and the friction spring 4 is provided by a series of lugs 5 emerging from said driver member and coming to be placed between the branches of the spring. Dans le but de diminuer l'effort exercé par les ergots de l'organe 3 sur les branches du ressort de friction 4 pour un couple donné, on a, comme le montre la fig. 1, disposé les ergots 5 sur le plus grand diamètre possible, c'est-à-dire tangentiellement au diamètre intérieur de l'épaulement de l'organe 2. De ce fait, ceux-ci agissent au voisinage des extrémités des branches du ressort diminuant ainsi l'effort exercé par lesdits ergots sur lesdites branches. In order to reduce the force exerted by the lugs of the member 3 on the branches of the friction spring 4 for a given torque, we have, as shown in FIG. 1, arranged the pins 5 on the largest possible diameter, that is to say tangentially to the internal diameter of the shoulder of the member 2. As a result, they act in the vicinity of the ends of the branches of the spring thus reducing the force exerted by said lugs on said branches. REVENDICATION CLAIM Mécanisme d'accouplement à friction, caractérisé en ce que l'un de ses deux organes possède un épaulement circulaire intérieur prenant appui par sa face extérieure contre l'autre organe, alors que sur sa face intérieure prennent appui les extrémités des branches d'un ressort de friction en forme d'étoile à au moins deux branches, que des ergots du second organe rendent rotativement solidaire de ce dernier, la pression desdites branches sur la face intérieure de l'épaulement étant rendue réglable au moyen d'un organe de serrage axialement solidaire du second organe. Friction coupling mechanism, characterized in that one of its two members has an inner circular shoulder bearing by its outer face against the other member, while on its inner face the ends of the branches of a star-shaped friction spring with at least two branches, which lugs of the second member make rotatably integral with the latter, the pressure of said branches on the inner face of the shoulder being made adjustable by means of a clamping member axially integral with the second member. SOUS-REVENDICATIONS 1. Mécanisme selon la revendication, caractérisé en ce que le ressort de friction comporte quatre branches. SUB-CLAIMS 1. Mechanism according to claim, characterized in that the friction spring has four branches. 2. Mécanisme selon la revendication, caractérisé en ce que l'organe de serrage est une vis traversant l'étoile en son centre. 2. Mechanism according to claim, characterized in that the clamping member is a screw passing through the star at its center. 3. Mécanisme selon la revendication, caractérisé en ce que les ergots du second organe sont disposés en sorte que leurs faces latérales extérieures se meuvent tangentiellement à la face latérale intérieure de l'épaulement du premier organe. 3. Mechanism according to claim, characterized in that the lugs of the second member are arranged so that their outer side faces move tangentially to the inner side face of the shoulder of the first member.
CH1297169A 1969-08-27 1969-08-27 Friction coupling mechanism CH496184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1297169A CH496184A (en) 1969-08-27 1969-08-27 Friction coupling mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1297169A CH496184A (en) 1969-08-27 1969-08-27 Friction coupling mechanism

Publications (1)

Publication Number Publication Date
CH496184A true CH496184A (en) 1970-09-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH1297169A CH496184A (en) 1969-08-27 1969-08-27 Friction coupling mechanism

Country Status (1)

Country Link
CH (1) CH496184A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748305A1 (en) * 1996-05-02 1997-11-07 Fichtel & Sachs Ag ACTUATOR WITH SLIDING COUPLING FOR A FRICTION CLUTCH

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748305A1 (en) * 1996-05-02 1997-11-07 Fichtel & Sachs Ag ACTUATOR WITH SLIDING COUPLING FOR A FRICTION CLUTCH

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