CH276197A

CH276197A - Watch balance.

Info

Publication number: CH276197A
Authority: CH
Inventors: Calame Ariste
Original assignee: Calame Ariste
Priority date: 1948-11-29
Filing date: 1948-11-29
Publication date: 1951-06-30

Description

  

  Balancier de montre.    L'objet de la présente invention est un ba  lancier de montre.  



  Ce balancier est     caractérisé    par le fait  qu'il comporte au     moins    une paire de     masse-          lottes    diamétralement opposées et.     distinctes     de la serge, à     laquelle    elles sont reliées par  des moyens permettant de les déplacer     ra-          dialement,    dans .le     but,de    modifier le moment  d'inertie du balancier.  



  L'unique figure     @du    -dessin annexé montre  une forme d'exécution de l'objet de l'inven  tion, donnée à titre d'exemple.  



  Elle représente un balancier, dont 1 est  le pivot et 2 la serge.  



       Celle@ci    :porte deux vis radiales 3 et 4, .dia  métralement opposées, et dont l'extrémité  tournée vers le pivot     est    cylindrique et tra  verse une     masselotte    5, respectivement 6.  



  Dans l'axe de la vis, chaque masselotte  est emprisonnée sans ébat entre l'épaulement  de la vis en délimitant la partie filetée, et une  bague 7, respectivement 8,     chassée    sur l'ex  trémité     cylindrique        faisant    suite au filetage.  



  Des paires de goupilles 9, 10, respective  ment 11, 12,     chassées    dans la serge, guident.  les     masselottes    dans le déplacement radial  que le     vissage    ou le     .dévissage    -des vis 3 et. 4  peut leur faire effectuer,     ces    goupilles s'op  posant à toute rotation des     masselottes    autour  de l'axe     des    vis.  



  Il est clair que selon le sens de rotation       iiiiprimé    aux vis, on rapprochera ou éloignera  ces     dernières    du pivot,     simultanément    avec    les masselottes, faisant ainsi varier le mo  ment     d'inertie    du balancier.  



  Les     masselottes        représentées    sont. cour  bées en ares de cercles de rayon tel qu'elles  sont     susceptibles    de venir s'appliquer contre  la face interne d e la serge à l'intérieur de la  quelle elles sont disposées.  



  On pourrait     également.,    au lieu de visser  les     vis    dans la serge et de les laisser tourner  folles dans les     masselottes,    procéder de ma  nière inverse en les vissant .dans les     masse-          lottes,    tandis qu'elles tourneraient folles dans .  la serge.  



  Le guidage .des     masselottes    pourrait     aussi          être    obtenu par d'autres moyens que deux  goupilles pour chacune d'elles, par exemple  par une rainure.  



  Il est enfin évident que les     masselottes     pourraient, de manière     analogue,    se trouver  à l'extérieur -de     la    serge.



  Watch balance. The object of the present invention is a watch maker.



  This balance is characterized by the fact that it comprises at least one pair of diametrically opposed mass-burbot and. separate from the rim, to which they are connected by means allowing them to be moved radically, with the aim of modifying the moment of inertia of the balance.



  The single figure of the appended drawing shows an embodiment of the subject of the invention, given by way of example.



  It represents a pendulum, of which 1 is the pivot and 2 the serge.



       This one: carries two radial screws 3 and 4, diametrically opposed, and whose end facing the pivot is cylindrical and passes through a weight 5, respectively 6.



  In the axis of the screw, each weight is trapped without beating between the shoulder of the screw delimiting the threaded part, and a ring 7, respectively 8, driven on the cylindrical end following the thread.



  Pairs of pins 9, 10, respectively 11, 12, driven into the rim, guide. the weights in the radial movement that the screwing or unscrewing -screws 3 and. 4 can make them perform, these pins opposing any rotation of the weights around the axis of the screws.



  It is clear that depending on the direction of rotation iiiiprimé to the screws, the latter will be brought closer to or away from the pivot, simultaneously with the weights, thus varying the moment of inertia of the balance.



  The weights shown are. curved in ares of circles of radius such that they are likely to come to rest against the internal face of the serge within which they are arranged.



  It is also possible, instead of screwing the screws into the rim and letting them turn crazy in the weights, proceed in the reverse way by screwing them in the mass-burts, while they would turn crazy in. the serge.



  The guiding .des weights could also be obtained by means other than two pins for each of them, for example by a groove.



  Finally, it is obvious that the weights could, in a similar manner, be located outside the serge.

Claims

CLAIM Watch balance, characterized in that it comprises at least one pair of diametrically opposed mass-monkfish and distinct from the rim, to which they are connected by means allowing them to be moved radia.lement, with the aim of to modify the moment of inertia of the balance. SOL'S-CLAIMS 1. Balance according to claim, charac terized in that the weights are. arranged internally at the; serge. 2.

Balance according to claim, charac terized in that the weights are arranged outside the rim. 3. Balance according to claim, charac terized by screws, the rotation of which produces the desired displacement of the weights. 4. Balance according to claim and sub-claim 3, characterized by screws screwed into the rim which they pass through, their ends in: contact with the weights while being axially integral, but rotating idly in the latter. 5.

Balance according to claim and sub-claim 3, characterized by screws screwed into the weights, these idle rotating screws in the rim which they pass through while being axially secured thereto. 6. Balance according to claim, charac terized in that the weights are exhibiting parts. at least one face having a radius of curvature substantially similar to that of the inner face of the rim. 7.

Balance wheel according to claim, characterized in that the weights are parts having at least one front face a radius of curvature substantially similar to that of the outer face of the rim. 8. Balance according to claim, earae- terized in that the weights are guided by pins driven into the rim.