• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a timepiece component, a sprung balance equipped with such a timepiece component, as well as a movement and a timepiece. The timepiece component (9) comprises a fixing part (36) in which an insert (40) is adhesively fixed with the aid of an adhesive, and a bonding zone delimiting portion (37 ) which is provided in the fixing part (36) and defines an area in which the adhesive is applied, at a desired level. In one embodiment, the attachment portion (36) is a through hole (41), and a shoulder (44) is provided as a bonding area delimiting portion (37) at an opening edge ( 43) of the through hole (41). The shoulder (44) is provided over the entire periphery of the opening edge (43) in the through hole (41).
    公开号:CH717087A2
    申请号:CH00080/21
    申请日:2021-01-28
    公开日:2021-07-30
    发明作者:koda Masayuki；Fujieda Hisashi；Suzuki Shigeo
    申请人:Seiko Watch Kk；
    IPC主号:
    专利说明:

    Background of the invention
    1. Field of the invention
    The present invention relates to a timepiece component, a sprung balance, a movement and a timepiece.
    2. Description of the prior art
    In the prior art, in a movement of a timepiece, it is known to drive a rotating timepiece while maintaining constant oscillation by using an escapement. In these timepieces, various techniques for making the escapement work precisely are proposed.
    [0003] For example, patent document 1 discloses an exhaust configured such that it comprises a plate, a first mobile exhaust part comprising a first mobile exhaust and a second mobile exhaust part including a second mobile exhaust, a means for mechanically coupling the first mobile exhaust part to the second mobile exhaust part, and an anchor holding the first and second paddles. The plate includes a third impulse vane cooperating with the first exhaust mobile and a fourth impulse vane cooperating with the second exhaust mobile. According to the technique described in patent document 1, the precision of the escapement can be improved by preventing any interference between the escapement and a regulator coupled to the escapement via a simple configuration.
    [0004] An example of such a solution according to the prior art is provided in document JP-A-2012-168172.
    [0005] These escapements are formed from various components of timepieces such as a plate, an anchor or an escapement mobile. Each timepiece component may be bonded to other components or may be bonded to other components. As described above, in the timepiece component which requires gluing at the time of manufacture, the adhesive material may swell greatly and protrude out of the timepiece component. Therefore, in order to ensure a clearance margin between the components, it is necessary to separate the components well from each other, which can increase the size of the movement. Further, when a variation occurs in the applied amount or in an application range of the adhesive material, the precision of the escapement and the accuracy of the running of the timepiece may be affected.
    SUMMARY OF THE INVENTION
    An object of the present patent application is to provide a timepiece component capable of preventing any increase in size and of improving its running precision, a sprung balance equipped with such a component of timepiece, as well as a movement and a corresponding timepiece.
    A timepiece component according to the patent application comprises: a fastening part in which an insert is fixed by adhesion, and a delimiting portion of the gluing zone which is arranged in the fastening part and delimits an area in which the adhesive is applied at a desired level.
    [0008] According to this configuration, the timepiece component includes the portion limiting a bonding area, and the bonding area delimiting portion can limit the area where the adhesive applied to the timepiece component to a desired level, that is to say a predetermined radius of action. Therefore, the level of protrusion of the adhesive outside the timepiece component can be reduced compared to the prior art technique in which no bonding area bounding portion is provided. Therefore, it is easy to ensure a clearance margin between the components, and the components can be arranged close to each other. In addition, a predetermined amount of adhesive can be reliably applied without causing variation in the amount of application or an application range of the adhesive in each component. Therefore, when these timepiece components are incorporated into the movement, it is possible to prevent any imbalance (weight distributed more unilaterally on one side) of the center of gravity caused by a difference in the amount of application of the l 'adhesive.
    [0009] Therefore, it is possible to obtain a timepiece component capable of preventing any increase in size and of which the running precision is improved.
    In the timepiece component according to a preferred embodiment, the fixing part is a recess, and the bonding zone delimiting portion is arranged as a shoulder at an edge of opening of the recess.
    According to this architecture, a predetermined amount of adhesive can be applied reliably by applying the adhesive at the level of the shoulder provided on the timepiece component. Further, it is possible to prevent the adhesive from protruding out of the timepiece component by the shoulder. Therefore, it is possible to arrange the bonding area bounding portion in a simple configuration and to prevent unbalanced weight distribution as well as increase in size of the timepiece component.
    In the timepiece component according to another preferred embodiment, the shoulder is arranged over an entire periphery of the opening edge in the recess.
    According to this architecture, since the shoulder is arranged over the entire periphery of the opening edge in the recess, the contact area (a bonding area) of the adhesive vis-à-vis the part component d The clockwork and insert can be increased compared to a case where the shoulder is provided simply in part of the opening edge. Therefore, the insert can be fixed more firmly.
    In the timepiece component according to yet another preferred embodiment, the fixing part includes a through hole in which the insert is arranged, and the insert is fixed by adhesion in the part of fixing in such a way that the height of the projection of the insert in the fixing part according to the direction of penetration of the through-hole is higher than the bottom of the shoulder, and is at the same time less than or equal to the top of the shoulder .
    According to this architecture, since an end surface of the insert is located on the upper side of the shoulder relative to the bottom, when the shoulder is filled with adhesive, the adhesive can be applied to a side surface around the end surface of the insert located within the shoulder. Therefore, the area of sticking the adhesive to the insert can be increased, and the insert can be fixed more firmly.
    According to yet another preferred embodiment, the timepiece component is formed by a MEMS process.
    [0017] According to such a configuration, since the timepiece component is formed via the MEMS method, the timepiece component including the bonding zone delimiting portion can be formed simply. This configuration can also be applied to a thin component used such as a timepiece component. Therefore, in particular the timepiece component, which is a fine and precise component, can include a bonding area bounding portion in which the amount and level of application of the adhesive can be adjusted so appropriate.
    In a timepiece component according to a preferred embodiment, the plate is equipped with the fixing part and the portion limiting a bonding zone, and a plate pin is fixed by adhesion like the attached element to the fixing part.
    This configuration can be suitably used when the platform peg is adhesively fixed to the platform. The plate performs an alternating rotation in a reciprocating motion around an axis of rotation, and this cycle of rotation affects the running precision of the timepiece. Therefore, by arranging the above gluing area bounding portion on the tray, the tray peg can be reliably fixed to the tray, and preventing unbalanced weight distribution, and it is possible to prevent any unbalanced weight distribution. difference in inclination caused by a shift in the center of gravity when the table moves back and forth. Therefore, it is possible to provide timepiece components capable of improving the time accuracy of the timepiece. Further, since the level of adhesive protruding out of the tray can be reduced, and other components can be disposed near the tray.
    In a timepiece component according to yet another preferred embodiment, an anchor body is equipped with the fixing part and the portion limiting a gluing zone, and a pallet is fixed by adhesion in as an element attached to the fixing part.
    This configuration can be used appropriately when the anchor body is fixed by adhesion to the pallet. The anchor body reciprocates around the axis of rotation, and this cycle of rotation affects the running accuracy of the timepiece. Therefore, by arranging the above gluing area bounding portion on the anchor body, the pallet can be reliably fixed to the anchor body, and by preventing unbalanced weight distribution, it is possible to 'prevent any escape error and any difference in inclination caused by a shift in the center of gravity when the anchor body reciprocates. Therefore, it is possible to obtain a timepiece component capable of improving the time accuracy of the timepiece can. Further, since the level of adhesive protruding outside the anchor body can be reduced, other components can be disposed near the anchor body.
    In the component of a timepiece, an escape wheel can preferably be equipped with the fixing part and the portion delimiting the bonding area, and an escape wheel shaft is fixed by adhesion in as an element attached to the fixing part.
    This configuration can be suitably used when the escape wheel and the escape wheel shaft are adhesively fixed. The escape wheel maintains the running precision of the timepiece by rotating integrally with the escape wheel shaft around the escape wheel shaft in a constant oscillation cycle. Therefore, by arranging the above bonding area bounding portion on the escape wheel, the escape wheel and the escape wheel shaft can be fixed reliably, and preventing inhomogeneous distribution. weight, it is possible to prevent any variation of the rotational torque when the escape wheel turns. Therefore, the escape wheel can be rotated at a constant oscillation frequency, and the running accuracy of the timepiece can be improved. Further, since the level of adhesive protruding outside the escape wheel can be reduced, other components can be disposed near the escape wheel.
    A sprung balance according to the teachings of the present patent application includes the above timepiece component.
    According to this configuration, since the above timepiece components are provided, the sprung balance timepiece components can be arranged close to each other, and it is thus possible to prevent any imbalance in terms of the weight distribution of each component of a timepiece. Therefore, it is possible to reduce the size of the spring balance, prevent any difference in inclination caused by inhomogeneous weight distribution, and improve the precision of the spring balance.
    [0026] Therefore, a sprung balance which has a reduced size and high precision, and which is equipped with the timepiece components capable of preventing any increase in size and improving the accuracy of time can be obtained. .
    A movement according to the subject of the patent application includes such a timepiece component above.
    [0028] According to this configuration, since an above timepiece component having a reduced size and high precision is provided, it is possible to improve the running precision of the movement while preventing the increase in the movement size.
    [0029] Therefore, a high performance movement equipped with the timepiece components capable of preventing size increase and improving time accuracy can be provided.
    A timepiece according to the subject of the patent application includes such a movement above.
    According to this configuration, since a movement as described above having a reduced size and high precision is provided, it is possible to improve the running precision of the timepiece while reducing its size.
    [0032] Therefore, a timepiece having a small size and high operating precision, and which is equipped with the timepiece components capable of preventing any increase in size and improving running precision. can be provided.
    [0033] The patent application can thus provide a timepiece component capable of preventing any increase in size and improving operating precision, an equipped sprung balance supplied with the timepiece, a movement and a part. clockwork.
    Brief description of the drawings
    Figure 1 is an external view of a timepiece according to one embodiment. Fig. 2 is a plan view of a movement according to the embodiment seen from the front. Fig. 3 is a side view of an exhaust and a regulating unit according to the embodiment. Figure 4 is a plan view of the exhaust according to the embodiment seen from the front. Figure 5 is a perspective view of a tray according to the embodiment seen from the front. Figure 6 is a perspective view of the tray according to the embodiment seen from the rear. Figure 7 is a perspective view of a tray in which the tray peg and a pallet of Figure 6 are not shown. Fig. 8 is a sectional view taken along line VIII-VIII of Fig. 6. Fig. 9 is a perspective view of an escape wheel and a pinion according to the embodiment seen from FIG. 'back. Figure 10 is a perspective view of an anchor according to the embodiment seen from the front.
    DESCRIPTION OF EMBODIMENTS
    [0035] Hereinafter, embodiments of the invention will be described with reference to the drawings.
    (Timepiece)
    Figure 1 is an external view of a timepiece 1 according to a preferred embodiment.
    The timepiece 1 is configured by incorporating therein a movement 4, a dial 5 having a graduated scale to indicate the time information, various hands (an hour hand 6, a minute hand 7 and a second hand 8 ), or the like in a timepiece case 3 including a case cover (also called back, not shown) and a crystal 2.
    (Movement)
    Figure 2 is a plan view of the movement 4 according to this preferred embodiment, seen from the front. In Figure 2, in order to make the drawings more readable, some of the various components constituting the movement 4 are omitted, and the various components are shown in a simplified manner. In addition, in the following description, the crystal side 2 (dial side 5, see figure 1) of the timepiece case 3 (see figure 1) is commonly referred to as the “rear” of the movement 4 with respect to to a plate 10 constituting a base plate of the movement 4, and the caseback (side opposite to the dial 5) is referred to as the “front” of the movement 4. The movement 4 includes the plate 10, a cog upper 11, a regulation unit 12 and an escapement 13 including one or more timepiece components 9.
    (Upper gear)
    The upper gear 11 includes a barrel 14 constituting a source of mechanical energy for the movement, a center mobile 15, a third mobile 16, and a fourth mobile 17. The barrel 14 is movably mounted between the plate 10 and a barrel bridge (not shown), and a mainspring (power source) (not shown) is housed therein. The mainspring is wound up via a rotation of a ratchet wheel 18. The ratchet wheel 18 is driven in rotation via a winding gear (not shown) actuated by the rotation of a winding rod (not shown) connected to a crown 19.
    The center mobile 15, the third mobile 16 and the fourth mobile 17 are movably mounted between the plate 10 and a gear bridge (not shown). When the barrel 14 of the movement rotates due to the elastic return force of the motor spring which was wound on itself in the armed position, the center mobile 15, the third mobile 16 and the fourth mobile 17 rotate in this order on the basis of this rotation.
    That is to say, the center mobile 15 meshes with the barrel 14 of the movement, and thus rotates synchronously with the rotation of the barrel 14 of the movement. As the center wheel 15 rotates, a barrel pinion (not shown) rotates based on this rotation. The 7 minute hand (see figure 1) is attached to the barrel pinion and the 7 minute hand displays “minutes” by rotating the barrel pinion. The minute hand 7 rotates at a rotational speed adjusted by the escapement 13 and the regulating unit 12, that is to say, one hour.
    When the center mobile 15 rotates, a minute wheel (not shown) rotates on the basis of this rotation, and furthermore, an hour wheel (not shown) rotates on the basis of the rotation of the wheel. minutes. The minute wheel and the hour wheel are components that make up the upper gear 11. The 6 hour hand (see figure 1) is attached to the hour wheel and the 6 hour hand displays “hours” on the display. the base of the rotation of the hour wheel. The hour hand 6 rotates at a rotational speed adjusted by the escapement 13 and the regulating unit 12, for example, 12 o'clock.
    The third mobile 16 meshes with the center mobile 15, and thus rotates on the basis of the rotation of the center mobile 15. The fourth mobile 17 meshes with the third mobile 16, and thus rotates on the basis of the rotation of the third mobile 16. The second hand 8 (see figure 1) is attached to the fourth mobile 17, and displays the “seconds” on the basis of the rotation of the fourth mobile 17. The second hand 8 performs a complete revolution at a speed of rotation adjusted by the exhaust 13 and the regulating unit 12, for example, one minute. The upper gear 11 can be configured so as to include an intermediate wheel arranged between the fourth mobile 17 and an escape mobile 21.
    The exhaust mobile 21, which will be described later, meshes with the fourth mobile 17 via an exhaust pinion 20 (see Figure 4). Consequently, the energy (rotational energy) of the mainspring housed in the barrel 14 of the movement is transmitted to the exhaust mobile 21 mainly via the center mobile 15, the third mobile 16 and the fourth mobile 17. Consequently, the mobile exhaust 21 rotates around a first axis O1.
    (Regulation unit)
    Figure 3 is a side view (a view taken in the direction of arrow III in Figure 2) of the exhaust 13 and the control unit 12 according to the embodiment. Figure 4 is a plan view of the exhaust 13 according to the embodiment seen from the front.
    As illustrated in Figures 2 and 3, the control unit 12 mainly includes a sprung balance 22. The sprung balance 22 includes a balance pin 23, a balance 24, a hairspring (not shown), and a plate 25 serving as a component of a timepiece 9. The sprung balance 22 uses the hairspring as a source of energy and performs a reciprocating movement (alternating rotation back and forth) about a second parallel axis 02 to the first axis 01 according to a constant amplitude of rotation (an angle of rotation) corresponding to an output torque of the movement barrel 14.
    The balance axis 23 is arranged coaxially with the second axis 02. A conical upper pivot 23a (a front end) and a lower pivot 23b (a rear end) are formed at both ends of the balance axis 23 in the axial direction, respectively. The upper pivot 23a is supported by a balance bridge (neither of the two being shown in this figure) via a bearing. The lower pivot 23b is supported by the plate 10 via a bearing 30. Therefore, the balance shaft 23 is rotatably mounted about the second axis 02 relative to the balance bridge and the plate 10. An outer peripheral part of the The balance pin 23 is a small flange 29 including a crescent-shaped part 28. The crescent-shaped part 28 is recessed inwardly in the radial direction with respect to the outer peripheral part of the balance axle 23 so as to form a curved surface. The crescent-shaped portion 28 acts as a release portion to prevent a stinger 70, which will be described later, from coming into contact with the flange 29 when a fork 69 (see Figure 4), which will be described later, and a platen pin 38 are engaged.
    The balance 24 includes a rim 33 and a connecting part 34. The rim 33 having an annular shape centered on the second axis 02. The connecting part 34 is arranged between the balance axis 23 and the rim 33, and extends along the radial direction of the balance axis 23. The link portion 34 connects the balance shaft 23 to the rim 33. A plurality of link parts 34 (four in the present embodiment ) are provided at equal angular intervals in a circumferential direction.
    The hairspring (not shown) is fixed to the outer peripheral part of the balance axle 23. More specifically, a ferrule (not shown) is fixed to the outside of the outer periphery of the balance axle 23 , and an inner end of the hairspring is fixed to the ferrule. The balance axis 23 rotates in one direction and then in the other according to a constant angle of rotation about the second axis 02 as a function of the energy transmitted by the hairspring.
    As shown in Figures 3 and 4, the plate 25, which is a component of the sprung balance 22 and a component of the escapement 13, is attached to the outside to the balance axis 23 as a component of timepiece 9. The plate 25 is fixed to the rear of the collar 29, which is arranged on the balance axis 23, in the axial direction of the second axis O2. The plate 25 is arranged coaxially with the second axis 02. The plate 25 is made of a metallic material or of a material having a crystalline orientation such as monocrystalline silicon. Tray 25 is formed via a MEMS process, for example. One method of manufacturing the platen 25 may be, for example, electroforming, a LIGA process incorporating an optical method such as a photolithography technique, DRIE, metal powder injection molding (MIM), or the like.
    Figure 5 is a perspective view of the plate 25 according to the preferred embodiment described, seen from the front. FIG. 6 is a perspective view of the plate 25 according to this preferred embodiment seen from the rear. Figure 7 is a perspective view of the tray 25 in which the tray pin 38 and a contact vane 39 of Figure 6 are not shown. Figure 8 is a sectional view taken along line VIII-VIII of Figure 6.
    As shown in Figures 5 to 7, the plate 25 has the form of a flat plate whose thickness extends in the axial direction of the second axis 02. The plate 25 has an axis insertion hole of balance 35, a fixing part 36 and a bonding zone delimiting portion 37.
    The balance axis insertion hole 35 is arranged coaxially with the second axis 02. The balance axis insertion hole 35 penetrates the plate 25 in the axial direction of the second axis 02. L The balance pin 23 (see Figure 3) is inserted and fixed in the balance pin insertion hole 35.
    The fixing part 36 is a recess made in the plate 25. The fixing part 36 fixes by adhesion an insert 40 such as the plate pin 38 or a contact paddle 39 to the plate 25 using an adhesive 45. More specifically, the attachment portion 36 includes a first through hole 41 (a through hole according to claim) and a first slot 42.
    The first through hole 41 penetrates the plate 25 in the axial direction of the second axis 02. The first through hole 41 has a semi-circular shape having a planar surface on the outer side in the radial direction, and is bulging towards the interior in an arcuate shape on the inner side in the radial direction, when viewed from the axial direction. The chainring peg 38 formed using an artificial gemstone such as a ruby is slightly driven into the first through hole 41.
    The plate peg 38 has a semicircular shape in a plan view having a flat surface on the outer side in the radial direction and an arcuate surface on the inner side in the radial direction, corresponding to the shape of the through hole. in which it is introduced. As shown in Figure 5, the tray peg 38 protrudes forward from the tray 25. The tray peg 38 is secured to the tray 25 using adhesive 45 (see figure 7) which will be attached to the tray. described in detail later.
    When viewed from the axial direction, the first slot 42 has a U-shape which extends along the radial direction and opens outward in the radial direction. The contact paddle 39 is inserted into the first slot 42. More specifically, the contact paddle 39 is inserted into the first slot 42 from the outside in the radial direction and is secured to the tray 25 using the adhesive. 45. The contact paddle 39 is made of an artificial stone such as a ruby, similar to the platen peg 38. The contact paddle 39 has a rectangular flat shape extending along the radial direction of the platen 25, and the pointed end projecting outwardly in the radial direction from an outer peripheral edge of the plate 25. The contact pallet 39 is arranged so as not to project from both sides of the plate 25 in the axial direction of the second O2 axis.
    The contact paddle 39 thus formed can come into contact (in collision) with the exhaust mobile 21 and then separate from it repeatedly, as described below, on the basis of the rotation of the spiral balance 22 (see figure 3 and also figure 4). When an exhaust tooth 52 of the exhaust mobile 21 is brought into contact with the contact vane 39, energy is transmitted from the exhaust mobile 21 to the contact vane 39.
    As shown in Figures 6 and 7, the bonding zone delimiting portion 37 is arranged on a surface oriented at the rear of the plate 25. The bonding zone delimiting portion 37 is arranged on an edge d The opening 43 of the attachment portion 36. The bonding area bounding portion 37 delimits an area in which the adhesive 45 is applied at a desired level. More specifically, the bonding area bounding portion 37 is a shoulder 44 formed on the plate 25. The shoulder 44 is formed to be recessed from the end surface at the rear of the plate 25 to reduce the pressure. The thickness of the plate 25. The shoulder 44 is formed on the outer side of the fixing portion 36 and follows the shape of the fixing portion 36 when viewed in the axial direction. The shoulder 44 is provided over the entire periphery of the opening edge 43 in the fixing part 36. In the present embodiment, the shoulders 44 are formed by the opening edge parts 43 of the first through hole 41 and of the first slot 42, and are respectively formed on a surface facing the rear of the plate 25.
    As shown in Figure 8, the shoulder 44 is filled with adhesive 45. In the state where the plate pin 38 is disposed in the first through hole 41, the height of the protrusion of the end surface 38a of the deck pin 38 at the rear of the deck 25 is higher than the bottom 47 of the shoulder 44, and is less than or equal to the level of the top 48 of the shoulder 44. In the present embodiment, the surface terminal 38a at the rear of the platen peg 38 is disposed flush with the upper portion 48 of the shoulder 44 (i.e., the rear surface of the platen 25). Further, the adhesive 45 is filled in the shoulder 44 such that the surface 45a of the adhesive 45 is flush with the top 48 of the shoulder 44. Therefore, when the shoulder 44 is filled. Of adhesive 45, adhesive 45 is applied to a side surface 38b of deck peg 38. End surface 38a of deck peg 38 may be located between bottom 47 and top 48 of shoulder 44. In this case, the adhesive 45 is not only applied to the side surface 38b of the tray peg 38 but also to the end surface 38a at the rear of the tray peg 38.
    (Exhaust)
    As illustrated in Figure 2, the exhaust 13 kinematically connects the upper gear 11 and the regulation unit 12. The exhaust 13 transmits a driving force from the upper gear 11 to the regulation unit 12, and controls the rotation of the upper gear 11 by adjusting the speed of rotation with the aid of the regulating unit 12. As shown in FIG. 3, the escapement 13 is arranged at the rear of the spring balance 22. The escapement 13 includes the escape mobile 21 and an anchor 49.
    As shown in Figures 3 and 4, the escapement mobile 21 includes an escape wheel shaft 50 and an escape wheel 51 serving as a component of a timepiece 9.
    The exhaust wheel shaft 50 is arranged coaxially with the first axis O1. The escape pinion 20 which meshes with the fourth mobile 17 is formed on the escape wheel shaft 50. A tapered pivot 50a and a lower pivot 50b are formed at both ends of the escape wheel shaft 50. in the axial direction, respectively. The exhaust mobile 21 is movably mounted between the plate 10 (see FIG. 2) and the train bridge (not shown) via the upper pivot 50a and the lower pivot 50b. The escape wheel shaft 50 rotates around the first axis O1.
    The escape wheel 51 is arranged at the rear of the escape pinion 20 in the axial direction of the first axis O1. As shown in Figure 3, the escape wheel 51 is arranged in a position equivalent to that of the plate 25 in the axial direction. The escapement mobile 21 is integrally secured to the escape wheel shaft 50, for example following a driving-in operation. As shown in Figure 4, escape wheel 51 includes a plurality of escape teeth 52 at its outer peripheral portion. The escape wheel 51 rotates synchronously with the escape wheel shaft 50 about the first axis O1.
    Figure 9 is a perspective view of the exhaust mobile 21 according to the preferred embodiment described, seen from the rear.
    Similar to the plate 25, the escape wheel 51 is made of a metallic material or a material having a crystalline orientation such as monocrystalline silicon, for example. Examples of the method of manufacturing the escape wheel 51 are MEMS process, electroforming, LIGA process including optical method such as photolithography technique, DRIE, metal powder injection molding (MIM) , or similar.
    The escape wheel 51 is configured so as to form integrally an annular hub 54 in which an insertion hole of the shaft 53 is formed, which serves as a fixing part 36 in a central part, and a plurality spokes 55 extending outwardly in the radial direction from the hub 54 and which are distributed at equal angular intervals in the circumferential direction. The escape wheel shaft 50 is inserted in the center of the shaft insertion hole 53. The escape wheel shaft 50 is secured to the escape wheel 51 using the adhesive. 45.
    The plurality of spokes 55 (eight in the present embodiment) is distributed at equal angular intervals in the circumferential direction. The spoke 55 is formed to taper outward in the radial direction. The spoke 55 is configured such that an end located outward in the radial direction is slightly inclined to one side in the circumferential direction. This curved tip acts as an escape tooth 52. The side surface of the escape tooth 52 located on the opposite side in the circumferential direction is a working surface 52a which is in contact with the contact vane 39 and is brought into contact with it. engage with an entry pallet 61 and an exit pallet 62, as described later. A cutout 56 is formed at the base of each spoke 55. When viewed from the axial direction of the first axis 01, the cutout 56 extends in the radial direction along the spoke 55, and is slightly curved along the line. circumferential direction, the curvature thus formed being oriented inwardly in the radial direction.
    The escape wheel 51 includes the shoulder 44 as a bonding zone delimiting portion 37 at the opening edge 43 of the fixing part 36 (the insertion hole of the shaft 53 ), similarly to the plate 25 described above. In the present embodiment, the shoulder 44 is provided on the rear surface of the escape wheel 51 (i.e. the surface opposite the escape pinion 20). The shoulder 44 is provided around the entire periphery of the opening edge 43 of the shaft insertion hole 53. That is, in a state where the escape wheel shaft 50 is disposed. in the insertion hole of the shaft 53 of the escape wheel 51, the shoulder 44 is provided on the outer peripheral part of the escape wheel shaft 50. The shoulder 44 is filled with adhesive. 45. Therefore, the escape wheel 51 and the escape wheel shaft 50 are fixed.
    As illustrated in Figure 4, the escapement mobile 21 configured in this way plays a role of direct transmission of the energy transmitted to the spring balance 22 when the spring balance 22 (see Figure 3) rotates according to a first direction of rotation W1, and of indirect transmission of a torque transmitted to the spiral balance 22 via the anchor 49, as described below, when the spiral balance 22 rotates in a second direction of rotation W2 opposite to the first direction of rotation W1.
    Figure 10 is a perspective view of the anchor 49 according to the embodiment as seen from the front side.
    As illustrated in Figures 4 and 10, the anchor 49 rotates around a third axis 03 parallel to the first axis 01 depending on the rotation of the spring balance 22. The anchor 49 controls the rotation of the mobile of. escapement 21, that is to say, controls the start and end of the rotation of the escapement mobile 21. As shown in FIG. 10, the anchor 49 includes an anchor pin 57, a body of anchor 58 serving as a component of a timepiece 9, and the inlet pallet 61 and the outlet pallet 62 which serve as an insert 40.
    The anchor axis 57 is arranged coaxially with the third axis 03. A conical pivot 57a and a lower pivot 57b are formed respectively at both ends of the anchor axis 57 in the axial direction. The anchor pin 57 is movably mounted between the plate 10 (see FIG. 2) and the anchor bridge (not shown) via the upper pivot 57a and the lower pivot 57b.
    The anchor body 58 is fully fixed to the anchor axis 57, for example via a drive. The anchor body 58 has a plate shape by electroforming or by MEMS process, for example. As shown in Figure 3, the anchor body 58 is disposed on the front face in the axial direction of the first axis O1 relative to the exhaust mobile 21 and the plate 25. As shown in Figure 10, the body d The anchor 58 includes two arms 63 and 64, the fixing part 36, and the bonding zone delimiting portion 37.
    The two arms 63 and 64 respectively extend in the radial direction from the anchor axis 57. An anchor axis insertion hole 66 for fixing the anchor axis 57 is provided in a connecting portion 65 of the two arms 63 and 64 in the anchor body 58. The anchor body 58 is integrally fixed to the anchor pin 57 by adjusting the anchor pin 57 in the anchor pin insertion hole 66 by driving or the like.
    As shown in Figure 4, the arm 63 is formed so as to extend from the connecting portion 65, to which the anchor pin 57 is fixed, on the side of the plate 25. The arm 64 s 'extends from the connecting portion 65, to which the anchor pin 57 is fixed, in the direction of movement (side opposite to the plate 25) of the rotation of the exhaust mobile 21. In a similar manner to the mobile of exhaust 21, each of the arms 63 and 64 is provided with cutouts 67 as required.
    As shown in Figures 4 and 10, a pair of inlet and outlet horns 68 disposed adjacent in the circumferential direction around the third axis 03 is provided at the end of the arm 63. The interior space between the input horn and the output horn 68 forms the fork 69 which opens in the direction of the balance axis 23 and in which the plate pin 38 which moves according to the alternating rotation of the spring balance 22 can come get lodged and then get out of it repeatedly.
    Furthermore, the dart 70 is fixed to the end of the arm 63.
    The dart 70 is integrally fixed to the arm 63 by inserting into the end of the arm 63 from the front in the axial direction of the third axis 03 by, for example, a drive. However, the invention is not limited to such a case, and the stinger 70 could be secured to the end of the arm 63 using adhesive 45, by stamping or sleeving or the like, for example.
    The dart 70 is located between the pair of input and output horns 68 (that is to say, located inside the fork 69) in a plan view, and extends from so as to protrude slightly in the direction of the balance axis 23 from the input and output horns 68. The dart 70 is fixed to the front of the platform pin 38 and at the same height as the collar 29 ( see figure 3) in the axial direction of the third axis 03.
    As illustrated in Figure 3, the end of the dart 70 faces, in the radial direction, the portion of the outer peripheral surface of the flange 29 excluding the crescent-shaped portion 28 with a slight spacing existing between both, in the state where the chainring peg 38 is separated from the fork 69. The end of the pin 70 is accommodated in the crescent-shaped portion 28 in the state where the chainring pin 38 is engaged in the fork 69.
    As illustrated in Figure 10, the fixing parts 36 are hollows made in the arms 63 and 64, respectively. The fastening parts 36 are adhesively secured to the inserts 40 such as the entry pallet 61 or the exit pallet 62 to the anchor body 58 using the adhesive 45. More specifically, the fastening parts 36 include a second through hole 71 provided in one arm 63 and a second slot 72 provided in the other arm 64.
    The second through hole 71 penetrates the anchor body 58 in the axial direction of the third axis 03. The second through hole 71 has a quadrangular shape having an inclined surface 71a towards the exhaust mobile 21 when viewed in the axial direction. The entry pallet 61, formed by an artificial stone such as a ruby, is slightly driven into the second through hole 71.
    The inlet pallet 61 has a quadrangular shape having an inclined surface 61a towards the exhaust mobile 21, corresponding to the shape of the second through hole 71. The inlet pallet 61 is fixed to the anchor body 58 using the adhesive 45. The entry pallet 61 protrudes rearwardly from the anchor body 58. A rear end of the entry pallet 61 extends to a position equivalent to that of the anchor body. exhaust mobile 21 in the axial direction (see FIG. 3). As shown in Figure 4, the inlet pallet 61 can be brought into engagement with the working surface 52a of the escape tooth 52 of the escape wheel 51, and then disengage therefrom again, and thus stop and then release the exhaust mobile 21 again.
    The second slot 72 is configured in the form of a U which opens in the direction of the exhaust mobile 21 when viewed in the axial direction. The exit pallet 62 is inserted into the second slot 72. More specifically, the exit pallet 62 is inserted into the second slot 72 from an opening of the second slot 72, and is secured to the anchor body 58 using of adhesive 45. The exit pallet 62 is formed by an artificial stone such as a ruby, similar to the entry pallet 61. The exit pallet 62 has a rectangular flat shape extending along the second slot. 72, and the end of the outlet vane 62 projects outwardly from the outer peripheral edge of the anchor body 58. As shown in Fig. 10, the outlet vane 62 projects rearwardly of the body. anchor 58. A rear end of the outlet pallet 62 extends in a position equivalent to that of the exhaust mobile 21 in the axial direction. The outlet pallet 62 can come into engagement with the useful surface 52a of the escape tooth 52 of the escape wheel 51, then disengage therefrom, and thus stop and release the escape mobile 21. In this way, it transmits the energy of the escapement mobile 21 to the sprung balance 22 via the anchor body 58.
    The bonding zone delimiting portion 37 of the anchor body 58 is arranged at the opening edge 43 of the fixing part 36, similarly to the plate 25 and to the escape wheel 51 described above. above. The bonding zone delimiting portion 37 is formed by the shoulder 44. The shoulder 44 is provided over the entire periphery of the opening edge 43 in the fixing part 36 of the anchor body 58. More specifically, the shoulders 44 are the opening edges 43 of the second through-hole 71 and of the second slot 72, and are formed on a front surface of the anchor body 58. The shoulder 44 is filled with adhesive 45. Therefore, the shoulder 44 is filled with adhesive 45. inlet pallet 61 and outlet pallet 62 are fixed to the anchor body 58. The positional relation in the axial direction of the third axis 03 between the shoulder 44 provided on the anchor body 58 and the pallet of inlet 61 and outlet pallet 62 is equivalent to the positional relationship between shoulder 44 provided on deck 25 and end surface 38a of deck peg 38.
    The anchor 49 formed in this way rotates about the third axis O3 on the basis of the rotation of the sprung balance 22 as described above.
    More specifically, as shown in Figure 4, the anchor 49 is rotated around the third axis O3 in a direction opposite to that of the direction of rotation of the sprung balance 22 by the plate pin 38 which moves along an alternating rotational movement of the balance (see Figure 3). At this time, the entry vane 61 and the exit vane 62 alternately repeat an approaching and outgoing movement with respect to the escape wheel 51 with respect to a rotational path R based on the rotation of the anchor 49. Therefore, the effective surface 52a of the escape tooth 52 of the escape wheel 51 may engage mutually with an engaging surface of the input pallet 61 or a surface of the inlet vane 61. 'engagement of the outlet pallet 62.
    More particularly, since the inlet pallet 61 and the outlet pallet 62 are arranged such that the third axis 03 is interposed between them, when the exhaust tooth 52 and the inlet pallet 61 are in contact. mutually engaged, the output vane 62 is disengaged from the exhaust tooth 52, and conversely, when the exhaust tooth 52 and the output vane 62 are in mutual engagement, the input vane 61 is disengaged from the tooth exhaust 52.
    (Functioning and technical effects)
    In what follows, the operation and the beneficial technical effects produced by the components of the timepiece 9, the sprung balance 22, the movement 4 and of the timepiece 1 will be described.
    According to a timepiece component 9 of this embodiment, the timepiece components 9 (the plate 25, the escape wheel 51 and the anchor body 58 described in the context of this present embodiment) include the bonding area bounding portion 37, and the area where the adhesive 45 is applied to the timepiece component 9 may be limited to a desired level by the bonding area bounding portion 37 Therefore, the level at which the adhesive 45 protrudes outside the timepiece component 9 can be reduced compared to the known technique of the prior art, whereby the bonding area bounding portion 37 is not planned. Therefore, it is easy to ensure a clearance margin between the components, and the components can be arranged close to each other. In addition, a predetermined amount of adhesive 45 can be reliably applied without generating variations in application amounts or adhesive application quantity ranges 45 for each component. Therefore, when these timepiece components 9 are incorporated into the movement 4, it is possible to prevent an imbalance (via inadequate weight distribution) from affecting the center of gravity due to a difference. in terms of applied amounts of adhesive 45.
    Therefore, timepiece components 9 capable of preventing any increase in size and whose running accuracy is improved can be realized.
    The fixing part 36 consists of a recess, and the shoulder 44 is arranged as a bonding zone delimiting portion 37 at an opening edge 43 of the recess. Therefore, a predetermined amount of adhesive 45 can be reliably applied by applying the adhesive 45 at the shoulders 44 provided on the timepiece components 9. Further, it is possible to prevent the adhesive. 45 to protrude from the surface of the timepiece components 9 providing the shoulders 44. Therefore, it is possible to realize the bonding area bounding portion 37 in a simple configuration and to prevent unbalanced distribution. weight, and also any increase in the size of timepiece components 9.
    Since the shoulder 44 is arranged over the entire periphery of the opening edge 43 in the recess, the contact zone (a bonding zone) of the adhesive 45 with respect to the component of the timepieces 9 and to the insert 40 (the plate pin 38, the contact vane 39, the escape wheel shaft 50, the input vane 61, and the output vane 62 in the present embodiment) can be increased compared to a case where the shoulder 44 is provided only in a part of the opening edge 43. Therefore, the insert 40 can be fixed more firmly.
    Since an end surface (for example, the end surface 38a of the plate pin 38 in the present embodiment) of the insert 40 is located on the side of the top 48 of the shoulder 44 with respect to the bottom 47, when shoulder 44 is filled with adhesive 45, adhesive 45 may be applied to a side surface (e.g. side surface 38b of deck pin 38) of insert 40 located at the bottom. The inside of the shoulder 44. Therefore, the area of sticking of the adhesive 45 to the insert 40 can be increased, and the insert 40 can be fixed more firmly.
    Since the timepiece component 9 is formed by a MEMS process, the timepiece component 9 including the bonding area delimiting portion 37 can be formed simply. The architecture can then be applied to a thin component such as the timepiece component 9. Consequently, in particular the timepiece component 9, which is a thin and precise component, can include a delimiting portion. bonding area 37 in which the amount and level of application of adhesive 45 can be suitably adjusted as required.
    The plate 25 is equipped with the fixing part 36 and the bonding zone delimiting portion 37, and the plate peg 38 is adhesively fixed as an insert 40 to the fixing part 36. Therefore, this configuration can be suitably used when the platen pin 38 is adhesively attached to the platen 25. The platen 25 rotates back and forth about an axis of rotation, and this cycle of rotation affects the running accuracy of the timepiece 1. Therefore, by arranging the bonding area bounding portion 37 on the platen 25, the platen pin 38 can be reliably secured to the platen 25, and by preventing any inhomogeneous distribution of the weight, it is possible to prevent any difference in inclination caused by an imbalance due to an offset of the center of gravity with respect to the axis of rotation when the plate 25 performs a rotary movement of upwards. and V ient. Therefore, it is possible to obtain timepiece components 9 capable of improving the running accuracy of the timepiece 1. Further, since the level of protrusion of the adhesive 45 outside the tray 25 can be reduced, other components can be placed near the tray 25.
    The anchor body 58 is equipped with the fixing part 36 and the bonding area delimiting portion 37, and the inlet pallet 61 and the outlet pallet 62 are adhesively fixed as a part. attached 40 to the attachment portion 36. Therefore, this configuration can be suitably used when the inlet vane 61 and the outlet vane 62 are adhesively secured to the anchor body 58. The anchor body 58 performs a back-and-forth rotary movement around the third axis 03, and this cycle of rotation affects the running accuracy of the timepiece 1. Therefore, by arranging the bonding area delimiting portion 37 on the anchor body 58, the inlet pallet 61 and the outlet pallet 62 can be reliably attached to the anchor body 58, and by preventing uneven distribution of weight, it is possible to prevent any error in exhaust and a difference in inclination caused by the imbalance This is due to the offset of the center of gravity with respect to the axis of rotation when the anchor body 58 performs a reciprocating rotary movement. Therefore, it is possible to provide timepiece components 9 capable of improving the timing accuracy of the timepiece 1. Further, since the adhesive level 45 protruding outside the body of anchor 58 can be reduced, other components can be arranged near anchor body 58.
    The escape wheel 51 is equipped with the fixing part 36 and the bonding zone delimiting portion 37, and the escape wheel shaft 50 is fixed by adhesion as an insert 40 to the attachment portion 36. Therefore, this configuration can be suitably used when the escape wheel 51 and the escape wheel shaft 50 are adhesively attached. The escape wheel 51 maintains the running precision of the timepiece 1 by rotating synchronously with the escape wheel shaft 50 around the escape wheel shaft 50 at a constant frequency. Therefore, by forming the bonding area bounding portion 37 on the escape wheel 51, the escape wheel 51 and the escape wheel shaft 50 can be fixed to each other in such a manner. reliable, and by preventing any uneven distribution of the weight, it is possible to prevent any variation of the rotational torque when the escape wheel 51 is rotating. Therefore, the escape wheel 51 can be rotated at a constant frequency, and the running accuracy of the timepiece 1 can be improved. Further, since the level of adhesive 45 protruding outside the escape wheel 51 can be reduced, other components can be disposed near the escape wheel 51.
    [0100] According to the sprung balance 22 of the present embodiment, since the above timepiece components 9 are provided, the timepiece components 9 of the sprung balance 22 can be arranged close to each other, and any imbalance in terms of weight resulting from the arrangement of the different components of timepiece 9 can be avoided. Therefore, it is possible to reduce the size of the spring balance 22, prevent tilting caused by weight distribution resulting in imbalance, and improve the precision of the spring balance 22.
    [0101] Therefore, the spring balance 22 which has a reduced size and high precision and which is equipped with the timepiece components 9 capable of preventing the increase in size and improving the precision can be provided.
    According to the movement 4 of the present embodiment, since a sprung balance 22 of reduced size and high precision is provided, it is possible to improve the precision of the time measurement of the movement 4 while avoiding an increase. the size of the movement 4.
    [0103] Therefore, a high performance movement 4 equipped with the timepiece components 9 capable of avoiding any increase in size and improving the accuracy of time measurement can be obtained.
    According to the timepiece 1 of the present preferred embodiment described, since a movement 4 of reduced size and high precision is provided, it is possible to improve the precision of the rate while reducing the size of the movement. the timepiece 1.
    [0105] Consequently, it is possible to obtain a timepiece 1 of reduced size and high precision and which is equipped with timepiece components 9 capable of avoiding any increase in size and improving the performance. precision of time measurement.
    The technical scope of the invention is not limited to the embodiments described above, and various variants can be added without departing from the spirit of the invention.
    [0107] For example, in the above embodiments, the fixing parts 36 comprise through holes 41 and 71 and slots 42 and 72, but the invention is not limited to such a configuration. The fixing part 36 could be, for example, a recess with a bottom arranged without completely passing through the timepiece component 9.
    In the embodiments described above, the adhesive 45 is configured to fill the shoulder 44 such that the surface 45a of the adhesive 45 is at the same level as the top 48 of the shoulder 44. , but the invention is not limited to such a configuration. Adhesive 45 may fill shoulder 44 such that surface 45a of adhesive 45 does not reach top 48 of shoulder 44.
    [0109] Further, the surface 45a of the adhesive 45 may protrude beyond the top 48 of the shoulder 44. Even when the adhesive 45 protrudes beyond the top 48 in this way, compared to the technique known from the prior art according to which no shoulder 44 is provided, the level of protrusion of the adhesive 45 can be reduced for the same quantity of adhesive 45 used.
    [0110] In addition, it is possible to suitably replace components of the embodiments described above with known components without departing from the spirit of the invention defined by the claims, and the modifications mentioned above. tops can be combined as needed.
    权利要求:
    Claims (11)
    [1]
    1. Timepiece component (9), comprising:a securing portion (36) in which an insert (40) is adhesively secured with an adhesive (45); anda bonding area delimiting portion (37) which is provided in the attachment portion (36), and delimits an area in which the adhesive (45) is applied at a desired level.
    [2]
    2. Timepiece component (9) according to claim 1, whereinthe fixing part (36) is a recess, and the bonding zone delimiting portion (37) is formed in the form of a shoulder (44) at an opening edge (43) of the recess .
    [3]
    3. Timepiece component (9) according to claim 2, whereinthe shoulder (44) is provided over the entire periphery of the opening edge (43) in the recess.
    [4]
    4. Timepiece component (9) according to claim 2 or 3, whereinthe fixing part (36) comprises a through hole (41) in which the insert (40) is disposed, andthe insert (40) is adhesively fixed in the fixing part (36) so that the protrusion height of the insert (40) in the fixing part (36) in the direction of penetration of the hole crossing (41) is higher than the bottom of the shoulder (44), and is less than or equal to the top of the shoulder (44).
    [5]
    5. Timepiece component (9) according to one of claims 1 to 4,wherein the timepiece component (9) is formed by a MEMS process.
    [6]
    6. Timepiece component (9) according to one of claims 1 to 5, whereina plate (25) is equipped with the fixing part (36) and the bonding zone delimiting portion (37), anda tray peg (38) is adhesively attached as an insert (40) to the attachment portion (36).
    [7]
    7. Timepiece component (9) according to one of claims 1 to 5, whereinan anchor body (58) is provided with the fixing part (36) and the bonding zone delimiting portion (37), anda pallet is adhesively attached as an insert (40) to the attachment portion (36).
    [8]
    8. Timepiece component (9) according to one of claims 1 to 5, whereinan escape wheel (50) is provided with the fixing part (36) and the bonding zone delimiting portion (37), andan escape wheel shaft (50) is adhesively fixed as an insert (40) to the fixing part (36).
    [9]
    9. Spiral balance (22), comprising:the timepiece component according to one of claims 1 to 6.
    [10]
    10. Movement (4) comprising:the timepiece component according to one of claims 1 to 8.
    [11]
    11. A timepiece (1) comprising:the movement according to claim 10.
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    同族专利:
    公开号 | 公开日
    CN113267983A|2021-08-17|
    JP6757481B1|2020-09-16|
    JP2021117183A|2021-08-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2020012472A|JP6757481B1|2020-01-29|2020-01-29|Governor, escapement, movement and watch|
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