CH169401A - Watch movement ratchet covers. - Google Patents

Watch movement ratchet covers.

Info

Publication number
CH169401A
CH169401A CH169401DA CH169401A CH 169401 A CH169401 A CH 169401A CH 169401D A CH169401D A CH 169401DA CH 169401 A CH169401 A CH 169401A
Authority
CH
Switzerland
Prior art keywords
ratchet
watch movement
stamped
heel
ratchet cover
Prior art date
Application number
Other languages
French (fr)
Inventor
Ebosa S A
Original Assignee
Ebosa Sa
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 Ebosa Sa filed Critical Ebosa Sa
Publication of CH169401A publication Critical patent/CH169401A/en

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B11/00Click devices; Stop clicks; Clutches
    • G04B11/02Devices allowing the motion of a rotatable part in only one direction
    • G04B11/022Devices allowing the motion of a rotatable part in only one direction with a ratchet which makes contact with the rotating member by means of teeth

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)

Description

  

      Couvre-rochets    de mouvement de montre.    L'invention a pour objet un couvre-rochets  de mouvement de montre.  



  Ce couvre-rochets comprend selon     l'iDven-          tion    un appendice flexible s'étendant à partir  de son talon et constituant la masse de  retenue faisant ressort pour le rochet de  couronne, la tête du     couvre-rochets    étant  emboutie et comportant, formées par la partie  emboutie, des ailettes constituant un noyau  destiné à recevoir le rochet de couronne  auquel il sert d'axe de rotation.  



  Le dessin ci-joint montre, à titre d'exemple,  une forme d'exécution de l'objet de l'invention.  La     fig.    1 la représente vue en plan, tandis  que la     fig.    2 est une coupe suivant la ligne  <I>1I-11</I> de la     fig.    1.  



  Le couvre-rochets représenté est formé  par une plaque en acier emboutie et comprend  un appendice arqué et flexible 3 qui prend  naissance près du talon 4 du     couvre-rochets.     Cet appendice s'étend vers le rochet de cou  ronne 5 et constitue pour ce dernier, la ruasse  de retenue 3' faisant ressort de manière  qu'elle tende toujours à s'engager dans la    denture du rochet de couronne engrenant  dans le rochet de barillet 6.  



  Lors du remontage du barillet, les rochets  tournent suivant le sens indiqué par les  flèches, de sorte que la masse 3' est repoussée  (position en traits pleins) par le rochet de  couronne. Mais, dès que les rochets tournent  en sens rétrograde, la masse 3' est ramenée  dans l'engrenage des rochets (en     fléchissant     comme indiqué en traits mixtes) et arrête  par coincement tout mouvement rétrograde  de ces derniers.  



  Le talon 4 est relié au corps du     couvre-          rochets    par un double coude 7, de manière  que le talon et la masse de retenue 3, 3' se  trouvent disposés dans le plan de rotation  des rochets. Un trou 7', découpé dans le  couvre-rochets, facilite l'opération de     coudage     du talon.  



  La tête du couvre-rochets est emboutie  en 8 et comporte     quatre    ailettes 9 disposées  en étoile. Ces ailettes sont obtenues par  découpage et pliage de la partie emboutie  reliées au corps du couvre-rochets par quatre      languettes 8 et forment ensemble un noyau,  sur le pourtour duquel est monté fou le  rochet de couronne 5 et qui constitue l'axe  ou le tourillon de rotation de ce dernier. Le  rochet 5 est maintenu entre le pont de barillet  et la tête du     couvre-rochets.  



      Watch movement ratchet covers. The invention relates to a watch movement ratchet cover.



  This ratchet cover comprises according to the iDvention- a flexible appendage extending from its heel and constituting the spring retaining mass for the crown ratchet, the head of the ratchet cover being stamped and comprising, formed by the stamped part, fins constituting a core intended to receive the crown ratchet to which it serves as an axis of rotation.



  The accompanying drawing shows, by way of example, one embodiment of the object of the invention. Fig. 1 shows it in plan, while FIG. 2 is a section taken along the line <I> 1I-11 </I> of FIG. 1.



  The shown ratchet cover is formed by a stamped steel plate and includes an arched and flexible appendage 3 which originates near the heel 4 of the ratchet cover. This appendage extends towards the neck ratchet 5 and constitutes for the latter, the retaining ring 3 'making a spring so that it always tends to engage in the teeth of the crown ratchet meshing with the barrel ratchet 6.



  When winding the barrel, the ratchets turn in the direction indicated by the arrows, so that the mass 3 'is pushed back (position in solid lines) by the crown ratchet. However, as soon as the ratchets turn in a retrograde direction, the mass 3 'is brought back into the gear of the ratchets (by bending as indicated in phantom) and stops by wedging any retrograde movement of the latter.



  The heel 4 is connected to the body of the ratchet cover by a double elbow 7, so that the heel and the retaining mass 3, 3 'are located in the plane of rotation of the ratchets. A 7 'hole, cut in the ratchet cover, facilitates the bending operation of the heel.



  The head of the ratchet cover is stamped at 8 and has four fins 9 arranged in a star. These fins are obtained by cutting and folding the stamped part connected to the body of the ratchet cover by four tongues 8 and together form a core, on the periphery of which is mounted by the crown ratchet 5 and which constitutes the axis or the journal rotation of the latter. The ratchet 5 is held between the barrel bridge and the head of the ratchet cover.

 

Claims (1)

REVENDICATION Couvre-rochets de mouvement de montre, caractérisé en ce qu'il comprend un appendice flexible s'étendant à partir de son talon et constituant la masse de retenue faisant ressort pour le rochet de couronne, la tête du couvre- rochets étant emboutie et comportant, formées par la partie emboutie, des ailettes constituant un noyau destiné à recevoir le rochet de couronne auquel il sert d'axe de rotation. S OTJS-RE VENDICATION Couvre-rochets de mouvement de montre selon la revendication, caractérisé en ce que son talon est embouti de manière que l'appen dice formant la masse de retenue se trouve disposé dans le plan des rochets. CLAIM Watch movement ratchet cover, characterized in that it comprises a flexible appendage extending from its heel and constituting the spring-loaded retaining mass for the crown ratchet, the head of the ratchet cover being stamped and comprising, formed by the stamped part, fins constituting a core intended to receive the crown ratchet for which it serves as an axis of rotation. S OTJS-RE VENDICATION Watch movement ratchet cover according to claim, characterized in that its heel is stamped so that the appendage forming the retaining mass is arranged in the plane of the ratchets.
CH169401D 1933-09-05 1933-09-05 Watch movement ratchet covers. CH169401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH169401T 1933-09-05

Publications (1)

Publication Number Publication Date
CH169401A true CH169401A (en) 1934-05-31

Family

ID=4421519

Family Applications (1)

Application Number Title Priority Date Filing Date
CH169401D CH169401A (en) 1933-09-05 1933-09-05 Watch movement ratchet covers.

Country Status (1)

Country Link
CH (1) CH169401A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157156B (en) * 1958-05-08 1963-11-07 Ebosa Sa Locking device for watches
DE2138226A1 (en) * 1970-07-30 1972-02-03 Suwa Seikosha Kk Holding device with spring element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157156B (en) * 1958-05-08 1963-11-07 Ebosa Sa Locking device for watches
DE2138226A1 (en) * 1970-07-30 1972-02-03 Suwa Seikosha Kk Holding device with spring element

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