Balance with inertia adjustment

Balance with inertia adjustment for timepieces, including a hub defining the pivot axis of the balance, a rim, a web extending between a lower plane and an upper plane on either side of a median plane, the web including at least one arm connecting the rim to the hub, the arm including a housing configured to receive and hold in place at least one inertia block. According to the invention, the inertia block has a front face and a rear face and is integrated in the balance arm, so that the front face and rear face are substantially in the upper plane and the lower plane.

Balance having inertia adjustment using an insert

The invention relates to a balance set (100) for a timepiece, having inertia adjustment for adjusting the inertia and/or balance and/or oscillation frequency thereof, including a balance (1) comprising an insert (7) that is inserted into a recess (8) of a rim (5) connected to a hub (2) by a junction surface (6). Said balance (1) comprises, at the rim (5) thereof, resilient supporting means (10) comprising two antagonistic resilient lips (13, 14) which enable, when a load is applied thereto, the insertion of said insert (7) into said recess (8), and which prevent, when released, the extraction of the insert from the recess (8). The invention also relates to a balance and spring assembly or to a timepiece including such a balance.

Method of improving the pivoting of a wheel set

A method of improving pivoting of a wheel set for a scientific instrument, including an arbor pivoting or oscillating about an axis, in which: static balancing of the wheel set is performed to bring the center of gravity onto the axis; a desired value is determined for resulting unbalance moment of the wheel set about the axis, corresponding to a predetermined divergence between a first principal longitudinal axis of inertia of the wheel set, and the axis; at a predetermined speed about the axis, the resulting unbalance moment is measured with regard to the axis; and an adjustment of the resulting unbalance moment is made within a given determined tolerance with regard to the desired value, and performed by machining both sides of a median plane including the two secondary axes of inertia of the wheel set.

Method for adjusting the oscillation frequency of a sprung balance assembly

A method adjusting oscillation frequency of a sprung balance assembly formed at random from balance springs and balance wheels. A production mechanism is set to limit a sample standard deviation of a single batch of balance springs to a predetermined maximum value, and to limit a sample standard deviation of a single batch of balance wheels to a predetermined maximum value within a given unbalance tolerance. The mean of the balance population is classified according to the mean of the balance springs, to obtain a difference corresponding to a maximum inertia decrease value of the balances, between extreme gaussian distribution values of balances and of balance springs. A random balance spring sample is taken from the single batch of balance springs and a random balance from among the single batch of balances. The inertia of the balance is adjusted according to a torque value of the balance spring sample.

Balance with inertia adjustment with no inserts

The invention concerns a timepiece balance ( 1 ), with inertia adjustment including a hub ( 2 ) pivoting about a balance staff ( 3 ) and a felloe ( 5 ), connected to said hub ( 2 ) by a joining surface ( 6 ). It is wherein said felloe ( 5 ) is made in a single piece with said joining surface ( 6 ) and said hub ( 2 ) in a micro-machinable material, or silicon, or quartz, or a compound thereof, or an alloy derived from MEMS technology, or an alloy obtained by the “LIGA” method, and in that it includes at least a first resilient arm ( 40 ) including coupling means ( 41 ) arranged for cooperating, in various coupling positions, with complementary coupling means ( 42 ) comprised in said felloe ( 5 ) to form, in the coupling position, a closed loop, the inertia of which relative to said balance staff ( 3 ) is variable according to said coupling positions. The invention also concerns a sprung balance or a timepiece incorporating a balance of this type.

Balance with inertia adjustment using an insert

A balance set for a timepiece, with inertia adjustment for adjusting inertia and/or balancing and/or oscillation frequency of the balance, with a balance including an insert inserted into a recess of a felloe connected to a hub by a joining surface. The balance includes on the felloe thereof an elastic holding mechanism including two antagonistic elastic lips which, when stressed, allow insertion of the insert into the recess and which, when released, prevent removal of the insert from the recess. A sprung balance or a timepiece can incorporate such a balance.

BALANCE WITH INERTIA ADJUSTMENT

Balance with inertia adjustment for timepieces, including a hub defining the pivot axis of the balance, a rim, a web extending between a lower plane and an upper plane on either side of a median plane, the web including at least one arm connecting the rim to the hub, the arm including a housing configured to receive and hold in place at least one inertia block. 1. A balance with inertia adjustment , for timepieces , including a hub defining the pivot axis of said balance , a rim , a web extending between a lower plane and an upper plane on either side of a median plane , said web including at least one arm connecting said rim to said hub , said at least one arm including a housing configured to receive and hold in place at least one inertia block ,wherein said at least one inertia block has a front face and a rear face and is integrated in said arm of said balance, so that said front face and rear face are substantially in said upper plane and said lower plane.2. The balance according to claim 1 , wherein said front face and said rear face of said at least one inertia block are set back by 0 μm to 1 mm with respect to said upper plane and to said lower plane.3. The balance according to claim 1 , wherein said front face and said rear face of said at least one inertia block project by 0 μm to 0.6 mm with respect to said upper plane and to the lower plane.4. The balance according to claim 1 , wherein said at least one inertia block is in said median plane of said web.5. The balance according to claim 1 , wherein said housing and said at least one inertia block are of complementary shape.6. The balance according to claim 1 , wherein said at least one inertia block is clamped with a predetermined retaining torque inside said housing.7. The balance according to claim 1 , wherein said at least one inertia block is cylindrical.8. The balance according to claim 1 , wherein said arm has an elastic portion extending in said median plane claim 1 , said elastic portion being ...

METHOD FOR ADJUSTING THE OSCILLATION FREQUENCY OF A SPRUNG BALANCE ASSEMBLY

A method adjusting oscillation frequency of a sprung balance assembly formed at random from balance springs and balance wheels. A production mechanism is set to limit a sample standard deviation of a single batch of balance springs to a predetermined maximum value, and to limit a sample standard deviation of a single batch of balance wheels to a predetermined maximum value within a given unbalance tolerance. The mean of the balance population is classified according to the mean of the balance springs, to obtain a difference corresponding to a maximum inertia decrease value of the balances, between extreme gaussian distribution values of balances and of balance springs. A random balance spring sample is taken from the single batch of balance springs and a random balance from among the single batch of balances. The inertia of the balance is adjusted according to a torque value of the balance spring sample. 120-. (canceled)22. The method according to claim 21 , characterized in that said inertia adjustment operation consists in carrying out claim 21 , simultaneously or in series:a machining operation to adjust the poise of said balance sample to bring it within a given poising tolerance if the unbalance of said balance sample is greater than the given poising tolerance, anda complementary machining operation to adjust the inertia of said balance, as a function of the torque, measured earlier, of said balance spring sample,so as to form a sprung balance assembly capable of oscillating at said oscillation frequency after said inertia adjustment operation.23. The method according to claim 21 , characterized in that the difference corresponding to an allowable decrease in inertia for each balance is limited to said maximum unbalance tolerance value.24. The method according to claim 21 , characterized in that a material-removal machining process is carried out on said balance for a first implementation without poising claim 21 , and then claim 21 , after measuring the ...

ASSEMBLY DEVICE USING THE DEFORMATION OF RESILIENT ARMS

The invention relates to a system of assembling a member, made of a first material, in the aperture of a part made of a second material having no usable plastic domain, using an intermediate portion () made of a third material, mounted between said member and said part. According to the invention, the part is accommodated against a first level () of the intermediate portion and is resiliently locked on a second level of the intermediate portion by the member in order to secure together the unit comprising the member-intermediate portion-part. 1. A system of assembling a member , made of a first material , in the aperture of a part made of a second material having no plastic domain , using an intermediate portion made of a third material , mounted between said member and said part , wherein the part is arranged to be accommodated against a first level of the intermediate portion and to be resiliently locked on a second level of the intermediate portion by driving on the member , the second level of the intermediate portion including at least one resilient locking device including a cantilever arm of a base attached to the first level of the intermediate portion to secure together the unit comprising the member -intermediate portion-part.2. The assembly system according to claim 1 , wherein the arm of each resilient locking device includes a strip claim 1 , which is resiliently bent by the member and one portion of which cooperates with a portion of corresponding geometry formed on the inner diameter of the aperture of the part in order to secure the intermediate portion against the part.3. The assembly system according to claim 2 , wherein the portion cooperating with a portion of corresponding geometry formed on the inner diameter of the part forms a tenon which cooperates with a mortise recess made on the inner diameter of the aperture of the part.4. The assembly system according to claim 2 , wherein the portion cooperating with a portion of corresponding geometry ...

DEVICE FOR ASSEMBLING AND LOCKING A JOINT

The invention relates to a system of assembling a member, made of a first material, in the aperture of a part made of a second material having no plastic domain, using an intermediate portion made of a third material, mounted between said member and said part, According to the invention, the intermediate portion is accommodated against a shoulder of the part and is laterally locked in a resilient manner by at least one resilient locking device of the part to secure together the unit comprising the member-intermediate portion-part. 1. A system of assembling a member , made of a first material , in the aperture of a part made of a second material having no usable plastic domain , using an intermediate portion made of a third material , mounted between said member and said part , wherein the intermediate portion is arranged to be accommodated against a shoulder of the part and to be laterally locked in a resilient manner by at least one resilient locking device in order to secure together the unit comprising the member-intermediate portion-part.2. The assembly system according to claim 1 , wherein each resilient locking device includes a cantilever arm of a base integral with the shoulder (of the part.3. The assembly system according to claim 2 , wherein the arm of each resilient locking device includes a strip claim 2 , resiliently bent by the intermediate portion claim 2 , the strip forming an opening which cooperates with a portion of corresponding geometry formed on the external diameter of the intermediate portion to secure the intermediate portion against the part.4. The assembly system according to claim 3 , wherein the opening is formed by a free end of each arm facing another base and forming a mortise for cooperating with a beak forming a tenon made on the external diameter of the intermediate portion.5. The assembly system according to claim 3 , wherein the opening is formed by a recess in each arm forming a mortise for cooperating with a beak forming a ...

METHOD OF IMPROVING THE PIVOTING OF A WHEEL SET

A method of improving pivoting of a wheel set for a scientific instrument, including an arbor pivoting or oscillating about a wheel set axis, the method including: static balancing of the wheel set to bring the center of gravity onto the axis; determining a desired value for the resulting unbalance moment of the wheel set about the axis, corresponding to a predetermined desired divergence between a first principal longitudinal axis of inertia of the wheel set, and the axis; setting the wheel set in rotation at a predetermined speed about the wheel set axis, the resulting unbalance moment is measured with regard to the axis; and adjusting a value of the resulting unbalance moment of the wheel set about the axis within a given determined tolerance with regard to the desired value. 125-. (canceled)26. A method of improving pivoting of a wheel set or of an equipped wheel set for a scientific instrument or timekeeper , said wheel set or equipped wheel set being manufactured to include a first principal longitudinal axis of inertia close to a wheel set axis or coincident therewith , and including at least one arbor arranged to pivot or oscillate about an axis of oscillation aligned on an wheel set axis formed by the axis of said arbor , the method comprising:prior to the static balancing of said wheel set or equipped wheel set, machining a flange, which is comprised in said wheel set or equipped wheel set, with a portion out of truth in the flat by a predetermined value, within the thickness of said flange there is a median plane of said wheel set or equipped wheel set, said median plane being defined by two other principal axes of inertia, creating an unbalance and/or a resulting unbalance moment in a particular angular direction, and off-center in relation to said median plane;performing static balancing of said wheel set to bring the center of gravity onto said wheel set axis;determining a desired value for the resulting unbalance moment of said wheel set about said ...

METHOD OF IMPROVING THE PIVOTING OF A WHEEL SET

A method of improving pivoting of a wheel set for a scientific instrument, including an arbor pivoting or oscillating about an axis, in which: static balancing of the wheel set is performed to bring the center of gravity onto the axis; a desired value is determined for resulting unbalance moment of the wheel set about the axis, corresponding to a predetermined divergence between a first principal longitudinal axis of inertia of the wheel set, and the axis; at a predetermined speed about the axis, the resulting unbalance moment is measured with regard to the axis; and an adjustment of the resulting unbalance moment is made within a given determined tolerance with regard to the desired value, and performed by machining both sides of a median plane including the two secondary axes of inertia of the wheel set. 131-. (canceled)32. A method of improving the pivoting of a wheel set or of an equipped wheel set for a scientific instrument or timekeeper , including at least one arbor arranged to pivot or oscillate about an axis of oscillation aligned on an wheel set axis formed by the axis of said arbor , wherein:static balancing of said wheel set is performed to bring the center of gravity onto said wheel set axis;a desired value is determined for the resulting unbalance moment of said wheel set about said wheel set axis, corresponding to a predetermined desired divergence between a first principal longitudinal axis of inertia of said wheel set, and said wheel set axis;said wheel set is set in rotation at a predetermined speed about said wheel set axis, the resulting unbalance moment is measured with regard to said wheel set axis;an adjustment is made to the value of the resulting unbalance moment of said wheel set about said wheel set axis within a given determined tolerance with regard to said desired value;said adjustment is performed by machining both sides of a median plane including the two secondary axes of inertia of said wheel set.33. The method according to claim ...

BALANCE WHEEL-SPRING ASSEMBLY OF TIMEPIECE

A balance wheel-spring system including a balance wheel that oscillates about a balance wheel shaft and a spring, one inner spiral of which is fixed to the balance wheel shaft or to a collet mounted integrally with the shaft and one outer spiral of which is fixed to a stud integral with a bridge. The balance wheel includes a hub, a rim, an arm connecting the hub to the rim, a front face which includes a countersink and a rear face, the arm including a housing receiving and retaining a flyweight, and the spring being mounted opposite the front face of the balance wheel. The flyweight is mounted on the arm on the rear face of the balance wheel, the distance between the bottom of the countersink of the front face of the balance wheel and the spring is a predetermined interval between 0.05 mm and 1.50 mm.

BALANCER WITH INERTIA ADJUSTMENT

Balance wheel with inertia adjustment with insert

The method involves equipping a balance (1) and/or an insert (7) of elastic maintaining units (10) arranged to allow insertion of the insert into a housing (8) in an insertion position in which the maintaining units are under stress and to prohibit extraction of the insert out of the housing in a maintaining position in which the maintaining units are released. The insert is inserted into the housing by binding the maintaining units in the insertion position, and the maintaining units are released in the maintaining position after full insertion of the insert into the housing. An independent claim is also included for a timepiece incorporating a hairspring or a balance.

Device for assembling and locking a joint

本發明係關於一種組裝系統(1、21、41、61、81)，其將由第一材料所製成的構件(3、23、43、63、83)組裝在由不具有可用的塑性範圍的第二材料所製成的部件(5、25、65、85)之孔口(4)中，此係藉由使用安裝在該構件與該部件之間由第三材料所製成的中間部(7、27、47、67、87)來達成。根據本發明，該中間部(7、27、47、67、87)被容置抵頂該部件(5、25、65、85)的肩部(11)且藉由該部件(5、25、65、85)的至少一個回彈性鎖定裝置(15)以回彈性的方式被側向地鎖定，以將包含該構件(3、23、43、63、83)-該中間部(7、27、47、67、87)-該部件(5、25、65、85)之單元固定在一起。本發明涉及時計的領域。

Sprung balance resonator for a timepiece

The invention relates to a resonator ( 11 ) with a balance ( 13 ) and balance spring ( 15 ) including a balance ( 13 ) mounted on a staff ( 17 ), a balance spring ( 15 ) integral with a collet ( 14 ) and mounted on said staff. According to the invention, the collet ( 14 ) includes an integral protruding portion or bump ( 16 ) forming a pin arranged for cooperating with an escape system. The invention concerns the field of timepiece movements.

Spiral balance resonator for a timepiece.

L’invention se rapporte à un résonateur (11) balancier (13) – spiral comportant un balancier (13) monté sur un axe (17), un spiral venu de forme avec sa virole (14) et monté sur ledit axe. Selon l’invention, la virole (14) comporte une excroissance (16) venue de forme formant une cheville destinée à coopérer avec un système d’échappement. L’invention concerne le domaine des mouvements horlogers. The invention relates to a resonator (11) rocker (13) - spiral comprising a rocker (13) mounted on an axis (17), a hairspring fit with its ferrule (14) and mounted on said axis. According to the invention, the shell (14) comprises a protuberance (16) formed in the form of a pin for cooperating with an exhaust system. The invention relates to the field of watch movements.

Clockwork balance wheel-hairspring assembly

L'invention se rapporte à un système balancier-spiral comportant un balancier oscillant autour d'un arbre de balancier et un spiral dont une spire intérieure est fixée à l'arbre de balancier ou à une virole montée solidaire de l'arbre et dont une spire extérieure est fixée à un piton solidaire d'un pont, le balancier comportant un moyeu, une serge, un bras reliant le moyeu à la serge, une face avant présentant une noyure et une face arrière, le bras comportant un logement pour la réception et le maintien d'une masselotte, et le spiral étant monté en regard de la face avant du balancier. Selon l'invention, la masselotte est montée sur le bras sur le côté de la face arrière du balancier, la distance entre le fond de la noyure de la face avant du balancier et le spiral est comprise dans un intervalle prédéterminé compris entre 0.05mm et 1.50mm. The invention relates to a balance-balance system comprising a balance oscillating around a balance shaft and a spiral of which an inner turn is fixed to the balance shaft or to a ferrule mounted integral with the shaft and one of which outer turn is fixed to a pin integral with a bridge, the balance having a hub, a serge, an arm connecting the hub to the serge, a front face having a recess and a rear face, the arm having a housing for receiving and maintaining a feeder, and the hairspring being mounted facing the front face of the balance. According to the invention, the weight is mounted on the arm on the side of the rear face of the balance, the distance between the bottom of the hole of the front face of the balance and the balance is in a predetermined range between 0.05mm and 1.50mm.

Device for assembly by deformation of resilient arms

The assembly system (1) has a portion (5) accommodated against the first level (6) of an intermediate portion (7) and resiliently locked on the second level of the intermediate portion by driving on a component (3). The second level (8) of the intermediate portion has a resilient locking device with the cantilever arm of a base attached to the first level of the intermediate portion to secure together a unit comprising the intermediate portion, the component and the portion.

Method for improving the pivotal movement of a mobile body

The invention relates to a method for improving the pivotal movement of a mobile body (1) for a scientific instrument, comprising a shaft (10) capable of pivoting or oscillating about an axis (D) of the mobile body, wherein said method comprises: statically balancing said mobile body so as to bring the center of gravity thereof onto said axis (D); determining a target value for the resulting imbalance moment of said mobile body about said axis (D), which corresponds to a predetermined target divergence between a first main longitudinal axis of inertia of said mobile body and said axis (D); rotating said mobile body about said axis (D) of the mobile body at a predetermined speed, and measuring the resulting imbalance moment relative to said axis (D); and adjusting the value of the imbalance moment of said mobile body about said axis (D) to within a given predetermined tolerance relative to said target value.

Assembly device using the deformation of resilient arms

Balance wheel-spring assembly of timepiece

A balance wheel-spring system including a balance wheel that oscillates about a balance wheel shaft and a spring, one inner spiral of which is fixed to the balance wheel shaft or to a collet mounted integrally with the shaft and one outer spiral of which is fixed to a stud integral with a bridge. The balance wheel includes a hub, a rim, an arm connecting the hub to the rim, a front face which includes a countersink and a rear face, the arm including a housing receiving and retaining a flyweight, and the spring being mounted opposite the front face of the balance wheel. The flyweight is mounted on the arm on the rear face of the balance wheel, the distance between the bottom of the countersink of the front face of the balance wheel and the spring is a predetermined interval between 0.05 mm and 1.50 mm.

Balance with inertia adjustment.

L’invention se rapporte à un balancier à réglage d’inertie, pour pièce d’horlogerie, comprenant un moyeu (4) définissant l’axe de pivotement du balancier, une face avant présentant une noyure (12), une face arrière, une serge (10), au moins un bras (2) comprenant un logement (3) configuré pour recevoir et maintenir en place au moins une masselotte (5). Selon l’invention, l’au moins une masselotte (5) est montée sur la face arrière du balancier, sur l’au moins un bras (2) du balancier. La masselotte (5) comprend un trou traversant (50) configuré pour coopérer avec un outil de manière à transmettre un couple à la masselotte (5) autour de son axe de rotation. Ainsi, le balancier selon l’invention permet d’obtenir un mouvement d’horlogerie compact et permet son réglage depuis les deux côtés du balancier. The invention relates to a balance with inertia adjustment, for a timepiece, comprising a hub (4) defining the axis of pivoting of the balance, a front face having a nock (12), a rear face, a serge (10), at least one arm (2) comprising a housing (3) configured to receive and hold in place at least one feeder (5). According to the invention, the at least one flyweight (5) is mounted on the rear face of the balance, on the at least one arm (2) of the balance. The weight (5) comprises a through hole (50) configured to cooperate with a tool so as to transmit a torque to the weight (5) about its axis of rotation. Thus, the rocker according to the invention provides a compact clockwork and allows its adjustment from both sides of the balance.

Balance with inertia adjustment

A balance for a horological movement includes rigid portions consisting of a hub defining the pivot axis of the balance, a felloe, four arms connecting the felloe to the hub, and including four slots for receiving and gripping in position an inertia-block, each slot being delimited by an arm and by an elastic arm including a first end integral with the arm, and a second distal end free in relation to the hub, to the arm, and to the felloe sector. The balance includes two pairs of inertia-blocks, each pair of inertia-blocks having different masses to ensure different adjusting powers, a first pair of inertia-blocks for a basic adjustment, and second pair of inertia-blocks for a precise adjustment.

Balancier à réglage d'inertie pour mouvement d'horlogerie.

Unruh für uhrwerk

Procédé d'amélioration du pivotement d'un mobile et mobile ou mobile équipé pour instrument scientifique ou garde-temps.

L’invention concerne Un procédé d’amélioration du pivotement d’un mobile (1) comportant un arbre (10) oscillant sous l’action de moyens de rappel autour d’un axe (D). Il comprend les étapes suivantes: – on équilibre statiquement ledit mobile; – on détermine une valeur cible de moment de balourd résultant dudit mobile (1) correspondant à une divergence cible prédéterminée entre un premier axe principal d’inertie dudit mobile, et ledit axe (D); – on met en rotation à une vitesse prédéterminée ledit mobile autour dudit axe (D), on mesure son moment de balourd résultant par rapport audit axe (D); – on ajuste sa valeur du moment de balourd résultant autour dudit axe (D) dans une tolérance déterminée donné par rapport à ladite valeur cible, par déformation d’au moins un flasque (2), que comporte ledit mobile (1) ou mobile équipé (40), de manière dissymétrique par rapport audit plan (P) défini par les deux autres axes principaux d’inertie dudit mobile ou mobile équipé. L’invention concerne également un mobile ou un mobile équipé pour instrument scientifique ou garde-temps.

Procédé d'amélioration du pivotement d'un balancier, balancier, ensemble balancier-spiral, mouvement et pièce d'horlogerie.

Le procédé d’amélioration du pivotement d’un balancier (1) oscillant autour d’un axe d’oscillation aligné sur son axe de balancier de l’invention comprend les étapes suivantes: – on effectue un équilibrage statique dudit balancier pour amener son centre de masse sur ledit axe de balancier; – on détermine une valeur cible de moment de balourd résultant dudit balancier autour dudit axe de balancier, correspondant à une divergence maximale prédéterminée entre un premier axe principal d’inertie longitudinal dudit balancier, et ledit axe du balancier; – on met en rotation à vitesse prédéterminée ledit balancier autour dudit axe de balancier, on mesure son moment de balourd résultant par rapport audit axe de balancier; – on effectue un ajustement de la valeur du moment de balourd résultant dudit balancier autour dudit axe de balancier dans une tolérance déterminée par rapport à ladite valeur cible. L’invention concerne également un balancier, un ensemble balancier-spiral, un mouvement d’horlogerie et une pièce d’horlogerie.

Procédé d'équilibrage d'un mobile pivoté.

L’invention concerne un procédé d’équilibrage d’un mobile pivoté comportant un arbre (10) oscillant sous l’action de moyens de rappel autour d’un axe (D) comportant les étapes suivantes: on équilibre statiquement ledit mobile; on détermine une valeur cible de moment de balourd résultant dudit mobile (1) correspondant à une divergence cible prédéterminée entre un premier axe principal d’inertie dudit mobile, et ledit axe (D); on fixe une vitesse prédéterminée de rotation à une vitesse angulaire maximale calculée pour ledit mobile considéré lors de son oscillation en combinaison avec un moyen de rappel électrostatique; on met en rotation à ladite vitesse prédéterminée ledit mobile autour dudit axe (D), on mesure son moment de balourd résultant par rapport audit axe (D); on ajuste sa valeur du moment de balourd résultant autour dudit axe (D) dans une tolérance déterminée donnée par rapport à ladite valeur cible.

Procédé d'équilibrage d'un mobile pivoté.

L’invention concerne un procédé d’équilibrage d’un mobile pivoté (1) comportant un arbre (10) oscillant sous l’action de moyens de rappel autour d’un axe (D). Il comprend les étapes suivantes: on équilibre statiquement ledit mobile; on détermine une valeur cible de moment de balourd résultant dudit mobile (1) correspondant à une divergence cible prédéterminée entre un premier axe principal d’inertie dudit mobile, et ledit axe (D); on met en rotation à une vitesse prédéterminée ledit mobile autour dudit axe (D), on mesure son moment de balourd résultant par rapport audit axe (D); on ajuste sa valeur du moment de balourd résultant autour dudit axe (D) dans une tolérance déterminée donné par rapport à ladite valeur cible, par déformation d’au moins un flasque (2), que comporte ledit mobile (1) de manière dissymétrique par rapport à un plan (P) défini par les deux autres axes principaux d’inertie dudit mobile et caractérisé en ce qu’on effectue ledit ajustement par déplacement de matière dissymétrique par rapport à un plan perpendiculaire audit axe de mobile (D) dudit mobile (1). L’invention concerne également un mobile pour instrument scientifique ou garde-temps.

慣性調整機能付きバランス

【課題】コンパクトな計時器用ムーブメントを得ることを可能にし、実装が単純で生産が低コストであるような慣性調整機能付きバランスを提供する。 【解決手段】計時器用の慣性調整機能付きバランスであって、バランスのピボット軸Ａを定めるハブと、リム１０と、及び正中面Ｐｍの両側の下側平面Ｐｉと上側平面Ｐｓの間に延在するウェブとを有し、ウェブは、リム１０をハブに接続する少なくとも１つのアーム２を有し、少なくとも１つのアーム２には、少なくとも１つの慣性ブロック５を適した位置に受け保持するように構成するハウジング３が設けられている。少なくとも１つの慣性ブロック５は、表面５２及び裏面５３を有し、表面５２及び裏面５３が上側平面Ｐｓ及び下側平面Ｐｉに実質的にあるようにバランスのアーム２と一体となっている。 【選択図】図３

Balancier à reglage d'inertie

慣性調整機能があるバランス

【課題】容易かつ迅速に調整を行うことができる慣性調整機能があるバランスを提供する。【解決手段】計時器用ムーブメントのためのバランス１に関し、バランス１には、バランス１の回転軸Ａを定めるハブ２と、輪縁体３と、及び輪縁体３をハブ２に接続する４つのアーム４によって構成している高剛性部分があり、４つのアーム４には、慣性ブロック６、６'を受け適切な位置に把持するための４つの溝７があり、各溝７は、一方ではアーム４のうちの１つのアーム４によって、他方では弾性アーム５によって境界が定められ、弾性アーム５には、アーム４と一体的となっている第１の端５Ｂと、及びハブ２、アーム４及び輪縁体３に対して自由な遠位の第２の端５Ａがある。慣性ブロック６、６'の各対は、調整パワーが異なることを確実にするように質量が異なり、第１の対の慣性ブロック６は、基本調整用であり、第２の対の慣性ブロック６'は、正確な調整用である。【選択図】図１