JP2017090065A - Timepiece components, and manufacturing method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide timepiece components that can be assembled accurately and are resistant to impacts from outside.SOLUTION: A balance 104 is configured of a balance spring 108, a balance core 109a to which a balance wheel 109 is fixed and a sequence of coats 301 covering the balance spring 108 and the balance wheel 109 fixed to the balance core 109a. As this configuration can prevent any drop in assembling accuracy in fitting the balance spring 108 or the balance wheel 109 to the balance core 109a by obstruction of the covering, it is made possible to provide timepiece components excelling in assembling accuracy and in resistance to impacts from outside.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a timepiece part of a mechanical timepiece and a method of manufacturing a timepiece part.

  A drive mechanism (movement) of a mechanical timepiece includes a speed control mechanism (temp) including a hairspring, a balance wheel, and the like. The hairspring and the ten-wheel are fixed to the ten-core, and in the timepiece, the hairspring, the ten-wheel and the ten-wheel operate integrally. Conventionally, a hairspring manufactured by processing a metal material has been widely used. However, in recent years, a hairspring manufactured by etching a material having a crystal structure such as crystal or silicon instead of a metal material has been used. There was a clock using.

Quartz and silicon balance springs can be manufactured with higher precision and less variation in processing accuracy than metal balance springs, which can improve timing accuracy while being brittle. Inferior to sex. For this reason, conventionally, for example, the outer surface of a silicon hairspring is covered with a film formed of an amorphous material such as silicon oxide (SiO ₂ ) or a metal film, whereby the resistance of the hairspring is improved. There has been a technique for improving impact resistance (see, for example, Patent Documents 1 and 2 below).

Special table 2008-544290 Japanese Patent No. 5599917

  However, since the conventional techniques described in Patent Document 1 and Patent Document 2 described above are used for assembling after the silicon spring is covered with a film, the dimensional accuracy of the hairspring at the stage of assembling the ten-core is reduced. Therefore, even if a hairspring manufactured with high precision by etching is used, there is a problem in that an assembly failure of the movement may occur.

  An object of the present invention is to provide a timepiece component and a method for manufacturing a timepiece component that secures high assembly accuracy and has high resistance to external impacts in order to eliminate the above-described problems caused by the prior art. To do.

  In order to solve the above-described problems and achieve the object, a timepiece component according to the present invention includes a balance spring and a tension ring constituting a balance of a mechanical timepiece, and a tension core to which the balance spring and the tension ring are fixed. The ten-core, and the hairspring and the ten wheel fixed to the ten-core, and a continuous film covering the outer surface.

  Moreover, the timepiece component according to the present invention is characterized in that, in the above-described invention, the hairspring is formed of silicon, and the coating is formed of a resin having higher flexibility than silicon.

  Moreover, the timepiece component according to the present invention is characterized in that, in the above invention, the coating is formed of a paraxylylene polymer.

  In the timepiece component according to the present invention, in the above invention, the coating is provided at both end portions in the axial direction of the ten core and in contact with a support member that supports the ten core. It is characterized by not.

  Further, in the timepiece component according to the present invention, in the above invention, the coating is not provided between the balance spring and the ten core, and between the ten wheel and the ten core. Features.

  The timepiece manufacturing method according to the present invention is a method for manufacturing a timepiece component constituting a balance of a mechanical timepiece, a fixing step of fixing a balance spring and a balance wheel to a ten core, and the whiskers in the fixing step. Covering the outer surfaces of the ten-core and the hairspring and ten-wheel fixed to the ten-core in a state where both ends in the axial direction of the ten-core, to which the mainspring and the ten-wheel are fixed, are fixed And a film forming step of forming a continuous film in a lump.

  The timepiece manufacturing method according to the present invention is characterized in that, in the above-mentioned invention, a film is formed by a vapor deposition polymerization method using a paraxylylene polymer.

  According to the timepiece component and the method for manufacturing the timepiece component according to the present invention, it is possible to provide a timepiece component and a timepiece having high assembly accuracy and high resistance to external impact.

It is explanatory drawing which shows the drive mechanism of a mechanical timepiece. It is explanatory drawing which shows the structure of a hairspring. It is explanatory drawing which shows the structure of a balance. It is explanatory drawing which expands and shows a part of FIG. It is explanatory drawing which shows the place which is performing the vapor phase vapor deposition polymerization method using a jig | tool.

  Exemplary embodiments of a timepiece component and a method for manufacturing the timepiece component according to the present invention will be explained below in detail with reference to the accompanying drawings.

  First, a drive mechanism for a mechanical timepiece will be described as a drive mechanism for a timepiece manufactured by the manufacturing method according to the embodiment of the present invention and incorporating the timepiece component according to the embodiment of the present invention. FIG. 1 is an explanatory view showing a drive mechanism of a mechanical timepiece. FIG. 1 shows a drive mechanism of a mechanical timepiece manufactured by the manufacturing method according to the embodiment of the present invention and incorporating the timepiece component according to the embodiment of the present invention.

  In FIG. 1, a driving mechanism 101 of a mechanical timepiece in which a timepiece part manufactured by the manufacturing method according to the embodiment of the present invention is incorporated includes an barrel 102, an escapement 103, a speed control mechanism (temp) 104, a train wheel 105 or the like. The barrel 102 houses a power mainspring (not shown) inside a thin cylindrical box. A gear wheel called a barrel wheel is provided on the outer peripheral portion of the barrel 102, and meshes with the second wheel constituting the train wheel 105.

  The power spring is a long thin metal plate in a wound state and is accommodated in the barrel 102. The center end of the power spring (the end located on the inner peripheral side in the wound state) is attached to the center axis of the barrel 102 (barrel true). The outer end of the power spring (the end located on the outer peripheral side in the wound state) is attached to the inner surface of the barrel 102.

  The escapement 103 includes a escape wheel 106 and an ankle 107. The escape wheel 106 is a gear provided with key-shaped teeth, and the teeth of the escape wheel 106 mesh with the ankle 107. The ankle 107 converts the rotational movement of the escape wheel 106 into a reciprocating motion by meshing with the teeth of the escape wheel 106.

  The balance 104 is composed of a hairspring 108, a balance wheel 109, and the like. The hairspring 108 and the ten wheel 109 are connected by a ten core 109 a provided at the center of the ten wheel 109. The hairspring 108 is a long member in a wound state and has a spiral shape (see FIG. 2). The hairspring 108 is designed to exhibit excellent isochronism in a state in which the drive mechanism 101 is configured by being incorporated in a mechanical timepiece.

  The balance 104 can reciprocate regularly by the expansion and contraction of the hairspring 108 by the spring force. The ten wheel 109 has a ring shape, and adjusts and controls the repetitive motion from the ankle 107 to maintain vibration at a constant speed. The ten wheel 109 is provided with an arm extending radially from the ten core 109a inside the ring shape formed by the ten wheel 109.

  The train wheel 105 is provided between the barrel 102 and the escape wheel 106 and is constituted by a plurality of gears engaged with each other. Specifically, the train wheel 105 includes a second wheel 110, a third wheel 111, a fourth wheel 112, and the like. The barrel of the barrel 102 is engaged with the second wheel 110. A second hand 113 is attached to the fourth wheel & pinion 112, and a minute hand 114 is attached to the second wheel & pinion 110. In FIG. 1, illustration of the hour hand and the ground plate for supporting each gear is omitted.

  In the drive mechanism 101, the center of the power spring is fixed to the center of the barrel 102 (barrel true) so that it cannot reversely rotate, and the outer end of the power spring is fixed to the inner peripheral surface of the barrel. When the power spring wound around the center of the barrel 102 (the barrel barrel true) tries to return to its original position, it is urged by the outer end of the power spring to be unwound in the same direction as the rolled-up direction, and the barrel 102 is rolled up. Rotates in the same direction as the mainspring unwinding. The rotation of the barrel 102 is sequentially transmitted to the second wheel 110, the third wheel 111, and the fourth wheel 112, and is transmitted from the fourth wheel 112 to the escape wheel 106.

  Since the escape wheel 107 is engaged with the escape wheel 106, when the escape wheel 106 rotates, the teeth (impact surface) of the escape wheel 106 push up the claws of the ankle 107, and thereby the balance in the ankle 107. The tip on the 104 side rotates the balance 104. When the balance 104 rotates, the protruding claw of the ankle 107 immediately stops the escape wheel 106. When the balance 104 rotates reversely with the force of the hairspring 108, the claws of the ankle 107 are released, and the escape wheel 106 rotates again.

  In this manner, the speed adjusting mechanism 104 causes the balance 104 to repeat regular reciprocating rotational movement by the expansion and contraction of the isochronous balance spring 108, and the escapement 103 generates a force for reciprocating movement with respect to the balance 104. While continuing to apply, each gear in the train wheel 105 is rotated at a constant speed by regular vibration from the balance 104. The escape wheel 106, the ankle 107, and the balance 104 constitute a speed control mechanism that converts the reciprocating motion of the balance 104 into a rotational motion.

(Structure of the hairspring 108)
FIG. 2 is an explanatory view showing the structure of the hairspring 108. FIG. 2 shows a plan view of the hairspring 108 viewed from the direction of the arrow X in FIG. 1 and a cross section taken along the line AA in the plan view. In FIG. 2, the hairspring 108 includes a mainspring portion 201 having a thin coil shape. Further, the hairspring 108 includes a hairball 202 provided at an end portion on the inner peripheral side of the mainspring portion 201 having a thin coil shape.

  The mainspring portion 201 and the whisker ball 202 are connected by a connecting portion 202a. The mainspring portion 201 has a coil shape in which the beard ball 202 is wound around the beard ball 202 via the connection portion 202a. Further, the hairspring 108 is provided with a hairspring 203 provided at an outer peripheral end portion of the mainspring portion 201 having a thin coil shape. The whisker 203 is fixed to a balance (not shown) that supports the balance 104.

  In FIG. 2, the symbol t indicates the thickness dimension of the hairspring 108. The thickness dimension of the hairspring 108 is determined according to the thickness dimension of the Si layer in a laminated substrate (SOI substrate) described later or the dimension in the thickness direction formed from the silicon single crystal substrate. In FIG. 2, a symbol w indicates a width dimension of the hairspring 108 in a plan view.

  The width dimension of the hairspring 108 may be varied depending on the position of the hairspring 108. That is, the width dimension of a part of the mainspring portion 201 in the hairspring 108 may be set as w, and the width dimension of another part may be set as a dimension larger than w. Specifically, for example, the width dimension at a specific position may be selectively varied in the length direction of the hairspring (the direction from the whistle ball 202 to the outer whiskers 203 along the spiral). . Thereby, intensity | strength can be raised effectively, without reducing the softness | flexibility or elastic property of the hairspring 108. FIG.

(Structure of balance 104)
Next, the structure of the balance 104 will be described. FIG. 3 is an explanatory view showing the structure of the balance 104. FIG. 4 is an explanatory diagram showing a part of FIG. 3 in an enlarged manner. 3 and 4 show a cross section of the balance 104 cut along the axial direction of the tension core 109a.

  In FIG. 3, the balance 104 is configured by fixing a hairspring 108 and a tension wheel 109 to a tension core 109 a at the center of the hairspring 108 and the tension wheel 109. Further, the balance 104 is provided with a swing stone (not shown) or a swing seat (large brim or small brim) for fixing the rock stone to the ten core 109a.

  The hairspring 108 can be formed of silicon (Si). Specifically, the silicon balance spring 108 can be formed, for example, by etching a silicon single crystal substrate or a laminated substrate (SOI substrate) into the shape of the balance spring 108 shown in FIG.

  The SOI substrate is configured by stacking a support layer, an oxide film (Box layer), and an active layer (Si layer) in the order of the support layer, the oxide film, and the active layer along the thickness direction. . In the SOI substrate, the active layer is formed of silicon. When using an SOI substrate, the hairspring 108 is formed, for example, by performing an etching process on the active layer by a deep RIE technique.

  In the SOI substrate, the oxide film functions as a stopper when performing etching by the deep RIE technique. When manufacturing the silicon hairspring 108, a mask based on the shape of the hairspring 108 is formed on the front side surface of the active layer of the silicon single crystal substrate or the SOI substrate, and etching using the mask is performed. The formation of the mask and the etching process can be easily realized using a known technique, and thus description thereof is omitted.

  The ten wheel 109 can be formed using a metal such as brass. The ten core 109a can be formed using a metal such as iron. The ten core 109a is supported at both ends by a support member (not shown) and the like, and rotates around the axis when measuring time. By forming the ten core 109a using a hard material such as iron, the ten core 109a is resistant to impact caused by dropping or the like, and the strength of the ten core 109a is suppressed from wear of the ten core 109a due to friction with the support member. can do.

  As shown in FIGS. 3 and 4, in the balance 104, a coating 301 is provided on the outer surfaces of the hairspring 108, the tension ring 109, and the tension core 109 a. The coating 301 uniformly covers the outer surfaces of the ten core 109a, and the hairspring 108 and the ten wheel 109 fixed to the ten core 109a. The coating 301 is continuous, and there is no seam at the boundary between the hairspring 108 and the ten core 109a and at the boundary between the ten wheel 109 and the ten core 109a.

  The coating 301 is not provided on both ends of the ten core 109a in the length direction. More specifically, the coating 301 is provided at a position that avoids a position where the ten core 109a and the support member that supports the ten core 109a are in contact with each other in a state where the ten core 109a is incorporated in the drive mechanism 101. . For this reason, the material which forms the ten lead 109a, such as iron, is exposed at both ends of the ten lead 109a. In addition, the coating 301 is not provided between the hairspring 108 and the ten core 109a and between the ten wheel 109 and the ten core 109a.

  The coating 301 can be formed using a resin material, for example. More specifically, the coating 301 can be formed using a resin material such as a paraxylylene polymer. The paraxylylene-based polymer is an organic compound polymer, and is formed into a thin film by causing a polymerization reaction on the surface of the hairspring 108. Paraxylylene polymers are excellent in conformal coverage. In other words, by using a paraxylylene polymer, a film with a uniform film thickness without pinholes, even if it is fine and has a complicated shape such as a groove, hole, or edge, such as a watch part used in a wristwatch. 301 can be formed.

  As shown in FIG. 4, a coating 301 formed using a resin material such as paraxylylene polymer exhibits a smooth surface property and exhibits an R shape at the edge portion. As a result, the aesthetics of the balance 104 can be improved, and the aesthetics of the timepiece can be improved in a timepiece designed so that part of the drive mechanism can be seen from the outside.

(Method for manufacturing balance 104)
Next, a method for manufacturing the balance 104 will be described. In manufacturing the balance 104, first, the balance spring 108 and the balance wheel 109 are fixed to the tension core 109a (fixing step). The hairspring 108 and the tension ring 109 can be fixed, for example, by press-fitting the hairspring 108 and the tension wheel 109 into the tension core 109a in a state where the tension core 109a is fixed.

  Next, the ten lead 109a to which the hairspring 108 and the ten wheel 109 are fixed is fixed. The ten core 109a fixes both ends in the axial direction of the ten core 109a using, for example, a dedicated jig (see FIG. 5).

  Then, in a state where the ten core 109a is fixed, the coating 301 is formed on the outer surfaces of the ten core 109a, the hairspring 108 and the ten wheel 109 fixed to the ten core 109a (coating 301 forming step). The coating 301 can be formed, for example, by providing a resin material on the outer surfaces of the ten core 109a and the balance spring 108 and the ten wheel 109 fixed to the ten core 109a.

  More specifically, for example, the coating 301 is provided with a paraxylylene polymer on the outer surfaces of the ten core 109a and the balance spring 108 and the ten wheel 109 fixed to the ten core 109a by a vapor deposition polymerization method. Can be formed. The vapor deposition polymerization method is one of chemical vapor deposition (CVD), and the coating 301 formed by using the vapor deposition polymerization method causes a polymerization reaction on the surface of the hairspring 108. Thus, a thin film is formed.

  By forming the coating 301 by chemical vapor deposition, the outer surface of the ten core 109a, the hairspring 108, and the ten wheel 109 is conformally covered as compared with the coating 301 formed by physical vapor deposition (PVD). Can be formed. As described above, an R shape is formed at the edge portion by forming the coating 301 using a paraxylylene-based polymer. As a result, it is possible to form the temp 104 having excellent smoothness and aesthetics by simply forming the coating 301 and without performing an operation such as polishing the surface of the temp 104 separately.

(How to use the jig)
Next, formation of the coating 301 by the vapor deposition polymerization method will be described. FIG. 5 is an explanatory view showing a vapor deposition polymerization method using a jig. When forming the coating film 301 on the balance 104, first, as shown in FIG. 5, the lower half of the balance spring 108 and the balance wheel 109 fixed to the balance core 109a are placed in the arrangement portion 501 of the jig 500. The ends of the ten lead 109a are fitted into the groove 502 so as to fit.

  Next, the fixed plate 504 is placed on the upper surface of the installation table 503. As a result, the upper side of the groove 502 is closed while the ten-core 109a to which the hairspring 108 and the tenter wheel 109 are fixed is supported from the lower side. And the ten lead 109a to which the hairspring 108 and the ten wheel 109 are fixed can be supported. At this time, the upper side of the balance spring 108 and the ten wheel 109 fixed to the ten core 109 a is in a state of protruding from the opening 505.

  Next, vapor phase deposition polymerization using a paraxylylene polymer is performed together with the jig 500 in a state where the ten core 109a (the ten core 109a to which the balance spring 108 and the ten wheel 109 are fixed) is held. As a result, the coating 301 can be formed on the outer surfaces of the ten core 109a, the hairspring 108, and the ten wheel 109. At this time, the coating 301 is not formed on the portion of the ten core 109a positioned in the groove 903.

  In this manner, by using the jig 500 shown in FIG. 5, both ends of the ten core 109a are fitted and held in the groove 903, thereby supporting the ten core 109a to which the hairspring 108 and the ten wheel 109 are fixed. The mask 301 can be masked so that the film 301 is not formed on both end portions of the ten core 109a. Thereby, it is possible to save the trouble of masking so that the coating film 301 is not formed on both end portions of the ten core 109a, and it is possible to form a continuous coating film 301 except for both end portions of the ten core 109a.

  In the above description, by using a jig such as the jig 500, the coating film 301 is not formed at the positions where both ends of the ten core in the axial direction are in contact with the support member that supports the ten core 109a. However, when forming the coating film 301 by the vapor deposition polymerization method, it is not necessary to use a jig. For example, the axial core of the ten core 109a is removed by masking both ends of the ten core 109a in advance so that the coating 301 is not formed, and removing the masking after forming the coating 301 by vapor deposition polymerization. The film 301 may not be formed at both ends in the direction. Alternatively, the ten core 109a is manufactured by designing both ends of the ten core 109a to be long in the axial direction in advance, and after forming the coating 301 by vapor deposition polymerization, the both ends of the 109a are shaved to a predetermined length. The film 301 may not be formed at both ends in the axial direction. In any case, the coating 301 is not formed at both ends of the ten core 109a in the axial direction and in contact with the support member that supports the ten core 109a.

  In the above-described embodiment, an example in which the outer surface of the ten core 109a and the balance spring 108 and the ten wheel 109 fixed to the ten core 109a is covered with a continuous film 301 has been described. The timepiece part is not limited to the balance 104. The coating 301 is preferably provided on a component that does not contact or slide with another component.

  Specifically, for example, the coating 301 can be provided so as to continuously cover the outer surfaces of a plurality of timepiece parts that operate integrally. Or after assembling, you may provide the film | membrane 301 which covers the outer surface of several timepiece components which a mutual positional relationship becomes fixed without moving after assembling the said several timepiece components.

  As described above, the balance 104 as the watch part according to the embodiment of the present invention includes the balance core 108a and the balance wheel 109 constituting the balance 104 of the mechanical watch, and the balance core 109a. It is characterized by comprising a hairspring 108 and a tension ring 109 fixed to 109a, and a continuous film 301 covering the outer surface of the hairspring 108 and the ten wheel 109.

  According to the balance 104 that is a timepiece component according to the embodiment of the present invention, the outer surface of the ten core 109 a and the balance spring 108 and the ten wheel 109 fixed to the ten core 109 a is covered with the continuous coating 301. Thus, it is possible to provide the balance 104 having high resistance against external impact.

  Further, by forming the coating 301 on not only the hairspring 108 but also the tension wheel 109, even when the hairspring 108 and the tension wheel 109 come into contact with each other, the hairspring 108 and the tension wheel 109 are formed. The coated film 301 can greatly improve the impact resistance.

  Further, since the continuous coating 301 covers the outer surface of the ten-core 109a, the balance spring 108 fixed to the ten-core 109a, and the ten wheel 109, the ten-spring 109 or the ten ring 109 is applied to the ten core 109a. When assembling, it can prevent that the coating | coated film 301 becomes an obstruction and an assembly precision falls. As a result, it is possible to provide a timepiece component with high assembly accuracy and high resistance to external impact.

  Further, the balance 104 of this embodiment is characterized in that the hairspring 108 is made of silicon and the coating 301 is made of a resin having higher flexibility than silicon.

  According to the balance 104 of this embodiment, even when the outer surface subjected to the etching process becomes rough and the smoothness is lost by being formed by the etching process on the silicon single crystal substrate or the SiC substrate, the resin The outer surface can be smoothed by providing the made coating 301. Thereby, the high beauty | look of the hairspring 108 and by extension, the balance 104 can be ensured.

  Further, the outer surface of the ten-core 109a and the balance spring 108 fixed to the ten-core 109a and the ten-ring 109 is covered with a resin having higher flexibility than silicon, thereby hindering the expansion and contraction of the mainspring 108. In addition, the hairspring 108 can be protected from the outside.

  As a result, the function of the hairspring 108 is ensured to ensure timekeeping accuracy, the aesthetics of the balance 104 is ensured, the assembling accuracy is high, and the timepiece component having high resistance to external impact is provided. be able to.

  Further, the balance 104 of this embodiment is characterized in that the coating 301 is formed of a paraxylylene polymer. According to the balance 104 of this embodiment, it is possible to form a thin film coating having no pinholes even in a minute gap like the side surface of the hairspring 108.

  This also ensures the timekeeping accuracy by ensuring the function of the hairspring 108, as well as ensuring the aesthetics of the balance 104, providing high precision of assembly and high resistance to external impact. can do.

  Further, in the balance 104 of this embodiment, the coating 301 is not provided at both ends in the axial direction of the ten core 109a and in contact with the support member that supports the ten core 109a. It is a feature.

  According to the balance 104 of this embodiment, the coating 301 is not provided at a position where it comes into contact with the support member that supports the ten core 109a, thereby preventing the coating 301 from hindering the rotation operation of the ten core 109a. Therefore, the timekeeping accuracy can be ensured. Accordingly, it is possible to provide the balance 104 having high time measurement accuracy and high assembly accuracy and high resistance to external impact.

  Further, the balance 104 according to this embodiment is characterized in that the coating 301 is not provided between the hairspring 108 and the ten core 109a and between the ten wheel 109 and the ten core 109a.

  According to the balance 104 of this embodiment, the balance 104 can be assembled in a state where the balance spring 108 and the tension core 109a and the tension wheel 109 and the tension core 109a are in direct contact with each other. Accordingly, it is possible to prevent a reduction in assembly accuracy due to the presence of the coating film 301 between the components, and to provide a watch component having high assembly accuracy and high resistance to external impact. Can do.

  In the method of manufacturing the balance 104 as a timepiece component according to the embodiment of the present invention, the balance spring 108 and the tension ring 109 are fixed to the tension core 109a, and the tension core 109a in which the balance spring 108 and the tension ring 109 are fixed. In a state in which both ends in the axial center direction are fixed, a continuous film 301 covering the outer surface of the ten core 109a, the hairspring 108 fixed to the ten core 109a and the ten wheel 109 is formed in a lump. It is characterized by doing so.

  According to the manufacturing method of the balance 104 of this embodiment, after the hairspring 108 and the balance wheel 109 are fixed to the tension core 109a, the tension core 109a, the hairspring 108, and the tension wheel 109 are collectively covered. By forming the coating 301, the balance 104 having high resistance to external impact can be easily and reliably manufactured without lowering the assembly accuracy.

  In addition, the method of manufacturing the balance 104 of this embodiment is characterized in that the coating 301 is formed by a vapor deposition polymerization method using a paraxylylene polymer. According to the method of manufacturing the balance 104 of this embodiment, even if the component has a fine and complicated shape in which the balance spring 108 and the balance wheel 109 are fixed to the tension core 109a, the coating 301 is smooth on the entire outer surface. Can be reliably formed. In addition, by forming the coating film 301 using a highly flexible paraxylylene-based polymer, the coating film 301 can function as an impact buffer, and the coating film 301 can buffer an external impact. Thereby, impact resistance can be improved significantly.

  As described above, the timepiece part and the method for manufacturing the timepiece part according to the present invention are useful for the timepiece part and the method for manufacturing the timepiece part constituting the mechanical part in the timepiece, and in particular, the drive mechanism of the mechanical timepiece. Suitable for timepiece parts and methods for producing timepiece parts.

101 Drive mechanism 102 Barrel 103 Escapement machine 104 Speed control mechanism (temp)
105 train wheel 106 escape wheel 107 ankle 108 hairspring 109 ten wheel 109a ten core 110 second wheel 111 third wheel 112 fourth wheel 301 301 coating

Claims (7)

The balance spring and the balance wheel constituting the balance of the mechanical watch,
A ten core to which the hairspring and the ten ring are fixed;
A series of coatings covering the outer surface of the ten-core, and the hairspring and the ten wheel fixed to the ten-core,
A watch part characterized by comprising: The hairspring is formed of silicon,
The timepiece component according to claim 1, wherein the coating is formed of a resin having higher flexibility than silicon.   The timepiece component according to claim 1, wherein the coating is formed of a paraxylylene-based polymer.   4. The coating film according to claim 1, wherein the coating film is provided at both end portions in the axial direction of the ten core and is not provided at a position in contact with a support member that supports the ten core. Watch parts described in one.   5. The coating film according to claim 1, wherein the coating is not provided between the hairspring and the ten core and between the ten wheel and the ten core. Watch parts. A method for manufacturing a watch part constituting a balance of a mechanical watch,
A fixing process for fixing the hairspring and the ten wheel to the ten core;
In the state of fixing both ends in the axial direction of the ten core to which the balance spring and the ten ring are fixed in the fixing step, the ten core, and the balance spring and the ten ring fixed to the ten core, A film forming process for forming a continuous film covering the outer surface of the film at once;
A method for manufacturing a watch part, comprising:   The method for manufacturing a timepiece part according to claim 6, wherein in the coating film forming step, the coating film is formed by a vapor deposition polymerization method using a paraxylylene-based polymer.

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