JP6757481B1 - Governor, escapement, movement and watch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a timepiece component capable of suppressing an increase in size and improving timekeeping accuracy, a balance with the watch part, a movement and a timepiece. SOLUTION: This is a watch component 9 used as a component of a movement in a watch, and is provided on a fixing portion 36 to which a member 40 to be adhered is adhesively fixed by an adhesive and a fixing portion 36 to which an adhesive is applied. It has an adhesive region limiting portion 37 that limits the region to a desired range. The fixing portion 36 is a through hole 41, and a step portion 44 is provided as an adhesive region limiting portion 37 at the opening edge portion 43 of the through hole 41. The step portion 44 is provided over the entire circumference of the opening edge portion 43 in the through hole 41. [Selection diagram] Fig. 6

Description

The present invention relates to governors, escapements, movements and watches.

Conventionally, in the movement of a timepiece, it is known that the timepiece is driven by maintaining a constant vibration by using an escapement. In these watches, various techniques for operating the escapement accurately have been proposed.

For example, Patent Document 1 describes a roller, a first movable escapement portion including a first escape wheel, a second movable escapement portion including a second escape wheel, and a first movable escapement portion. A configuration of an escapement including means for mechanically connecting the escapement and the second movable escapement and ankles for holding the first and second claw stones is disclosed. The roller comprises a third collision claw stone that cooperates with the first escape wheel and a fourth collision claw stone that cooperates with the second escape wheel. According to the technique described in Patent Document 1, the accuracy of the escapement can be improved by suppressing the interference between the escapement and the speed governor coupled to the escapement with a simple configuration. It is said that.

Japanese Unexamined Patent Publication No. 2012-168172

By the way, these escapements are composed of various clock parts such as a swing seat, ankle, and escape wheel. Each watch part may be fixed by adhesive to other parts, or may be fixed by adhesive to other parts. As described above, in the timepiece parts that require adhesion at the time of manufacture, the adhesive may greatly swell and protrude from the surface of the timepiece parts. Therefore, in order to secure the clearance between the parts, it is necessary to separate the parts from each other, which may increase the size of the movement. Further, if the coating amount and the coating range of the adhesive vary, the accuracy of the escapement and the timing accuracy of the timepiece may be affected.

Therefore, an object of the present invention is to provide a speed governor, an escapement, a movement and a timepiece equipped with these, which can suppress the increase in size and improve the timing accuracy.

In order to solve the above problems, the speed controller of one embodiment of the present invention has a fixing portion in which the member to be adhered is adhered and fixed by an adhesive, and a region provided in the fixing portion and to which the adhesive is applied. have a, a bonding region limiting unit for limiting the desired range, the fixing unit is a recess, the opening edge of the recess, a step portion is provided as the bonding region limiting unit.

According to this configuration, the speed governor has an adhesive region limiting portion, and the adhesive region limiting portion can limit the region of the adhesive applied to the speed governor to a desired range. As a result, the amount of protrusion of the adhesive from the speed governor can be suppressed as compared with the conventional technique having no adhesive region limiting portion. Therefore, it becomes easy to secure the clearance between the parts, and the parts can be arranged close to each other. In addition, a predetermined amount of adhesive can be stably applied without variations in the amount and range of the adhesive applied to each part. Therefore, when these speed governors are incorporated into the movement, it is possible to suppress the occurrence of an imbalance (single weight) in the center of gravity due to the difference in the amount of the adhesive applied.
Therefore, it is possible to provide a speed governor that can suppress the increase in size and improve the timing accuracy.

According to this configuration, by applying the adhesive to the stepped portion provided in the speed governor , a predetermined amount of the adhesive can be stably applied. Further, by providing the stepped portion, it is possible to prevent the adhesive from protruding from the surface of the speed governor . Therefore, it is possible to provide a bonding area limiting portion with a simple configuration and suppress one-sided weight and increase in size of the speed governor .
Also, the speed governor, before SL has a fixed portion and the bonding region limiting unit swing seat provided, wherein the fixing part, swing stone is bonded Examples bonded component.
According to this configuration, it can be suitably used when the swing stone is adhered and fixed to the swing seat. The swing seat reciprocates around a rotation axis, and this rotation cycle affects the timekeeping accuracy of the clock. For this reason, by forming the above-mentioned adhesive region limiting portion on the swing seat, the swing stone is stably fixed to the swing seat, and by suppressing one weight, the center of gravity when the swing seat reciprocates. The posture difference caused by imbalance can be suppressed. Therefore, it is possible to make the governor capable of improving the time counting accuracy of the timepiece. Further, since the amount of the adhesive protruding from the swing seat can be suppressed, other parts can be arranged in the vicinity of the swing seat.

Further, in the speed governor , the step portion is provided over the entire circumference of the opening edge portion in the recess.

According to this configuration, since the step portion is provided over the entire circumference of the opening edge portion in the recess, the fixed portion and the adhered portion are adhered as compared with the case where the step portion is provided on a part of the opening edge portion. The contact area (adhesive area) of the adhesive with respect to the member can be increased. As a result, the member to be adhered can be fixed more firmly.

Further, in the speed governor , the fixing portion has a through hole in which the adhered member is arranged, and the protruding height of the adhered member in the fixing portion in the penetrating direction of the through hole is the step. It is adhesively fixed so as to be higher than the bottom of the portion and below the top of the step portion.

According to this configuration, the end face of the member to be adhered is located on the top side of the bottom of the step portion, so that when the step portion is filled with the adhesive, the end surface of the member to be adhered located inside the step portion. Adhesive can be applied to the surrounding sides. Therefore, the adhesive area to the adhered member can be increased, and the adhered member can be fixed more firmly.

Further, the speed governor is formed by a MEMS process.

According to this configuration, since the speed governor is formed by the MEMS process, the speed governor having the bonding region limiting portion can be easily formed. It can also be applied to minute parts such as governors . Therefore, especially in a speed governor which is a fine and precise part, it is possible to have a configuration having an adhesive region limiting portion in which the amount of adhesive and the coating range can be suitably set.

One form of the escape machine of the present invention is a fixing portion in which a member to be adhered is adhesively fixed by an adhesive, and an adhesive provided in the fixing portion to limit the area to which the adhesive is applied to a desired range. It has a region limiting portion, and the fixing portion is a concave portion, and a step portion is provided as the adhesive region limiting portion at the opening edge portion of the concave portion.
According to this configuration, the escapement has an adhesive region limiting portion, and the adhesive region limiting portion can limit the region of the adhesive applied to the escapement to a desired range. As a result, the amount of protrusion of the adhesive from the escapement can be suppressed as compared with the conventional technique having no adhesive region limiting portion. Therefore, it becomes easy to secure the clearance between the parts, and the parts can be arranged close to each other. In addition, a predetermined amount of adhesive can be stably applied without variations in the amount and range of the adhesive applied to each part. Therefore, when these escapements are incorporated into the movement, it is possible to suppress the occurrence of an imbalance (one-sided weight) in the center of gravity due to a difference in the amount of adhesive applied.
Therefore, it is possible to provide an escapement capable of suppressing the increase in size and improving the timing accuracy.
Further, according to this configuration, by applying the adhesive to the stepped portion provided in the escapement, a predetermined amount of the adhesive can be stably applied. Further, by providing the stepped portion, it is possible to prevent the adhesive from protruding from the surface of the escapement. Therefore, it is possible to provide a bonding area limiting portion with a simple structure and suppress the one-sided weight and the increase in size of the escapement.
Further, the escapement has an escape wheel in which the escape gear is provided with the fixing portion and the bonding region limiting portion, and the fixing portion has an escape shaft portion as the bonded member. Is glued and fixed.
According to this configuration, it can be suitably used when the escape gear and the escape shaft portion are adhesively fixed. The escape gear maintains the timekeeping accuracy of the clock by rotating around the escape shaft in a fixed cycle integrally with the escape shaft. For this reason, by forming the above-mentioned bonding area limiting portion on the escape gear, the escape gear and the escape shaft portion are stably fixed, and the escape gear is suppressed by suppressing one weight. It is possible to suppress variations in rotational torque during rotation. Therefore, the escape gear can be rotated at a constant cycle to improve the timing accuracy of the timepiece. Further, since the amount of the adhesive protruding from the escape gear can be suppressed, other parts can be arranged in the vicinity of the escape gear.
Further, the escapement has an ankle in which the fixing portion and the adhesive region limiting portion are provided on the ankle body, and a claw stone is adhesively fixed to the fixing portion as the adhesive member.

According to this configuration, it can be suitably used when the nail stone is adhered and fixed to the ankle body. The ankle body reciprocates around a rotation axis, and this rotation cycle affects the timekeeping accuracy of the timepiece. For this reason, by forming the above-mentioned adhesive region limiting portion on the ankle body, the claw stone is stably fixed to the ankle body, and by suppressing one weight, the center of gravity when the ankle body reciprocates. Escapement error and attitude difference caused by imbalance can be suppressed. Therefore, it can be an escapement capable of improving the clock accuracy of the clock. Further, since the amount of the adhesive protruding from the ankle body can be suppressed, other parts can be arranged close to the ankle body.
Further, in the escapement, the step portion is provided over the entire circumference of the opening edge portion in the recess.
According to this configuration, since the step portion is provided over the entire circumference of the opening edge portion in the recess, the fixed portion and the adhered portion are adhered as compared with the case where the step portion is provided on a part of the opening edge portion. The contact area (adhesive area) of the adhesive with respect to the member can be increased. As a result, the member to be adhered can be fixed more firmly.
Further, in the escapement, the fixing portion has a through hole in which the adhered member is arranged, and the protruding height of the adhered member in the fixing portion in the penetrating direction of the through hole is the step. It is adhesively fixed so as to be higher than the bottom of the portion and below the top of the step portion.
According to this configuration, the end face of the member to be adhered is located on the top side of the bottom of the step portion, so that when the step portion is filled with the adhesive, the end surface of the member to be adhered located inside the step portion. Adhesive can be applied to the surrounding sides. Therefore, the adhesive area to the adhered member can be increased, and the adhered member can be fixed more firmly.
Further, the escapement is formed by a MEMS process.
According to this configuration, since the escapement is formed by the MEMS process, the escapement having the adhesion region limiting portion can be easily formed. It can also be applied to minute parts such as escapements. Therefore, the escapement, which is a particularly fine and precise component, can be configured to have an adhesive region limiting portion in which the amount of adhesive and the coating range can be suitably set.

One form of movement of the present invention includes the speed governor described above.

According to this configuration, since the above-mentioned compact and highly accurate speed governor is provided, it is possible to improve the timing accuracy of the movement while suppressing the increase in size of the movement.
Therefore, it is possible to provide a high-performance movement equipped with a speed governor that can suppress the increase in size and improve the timing accuracy.
One form of movement of the present invention comprises the escapement described above.
According to this configuration, since the above-mentioned small and highly accurate escapement is provided, it is possible to improve the timing accuracy of the movement while suppressing the increase in size of the movement.
Therefore, it is possible to provide a high-performance movement equipped with an escapement that can suppress the increase in size and improve the timing accuracy.

One form of the watch of the present invention comprises the movement described above.

According to this configuration, since the above-mentioned compact and highly accurate movement is provided, it is possible to improve the timekeeping accuracy while reducing the size of the timepiece.
Therefore, it is possible to provide a small and highly accurate timepiece equipped with a speed governor or an escapement capable of suppressing the increase in size and improving the timekeeping accuracy.

According to the present invention, it is possible to provide a speed governor, an escapement, a movement and a timepiece equipped with these, which can suppress an increase in size and improve timekeeping accuracy.

The external view of the timepiece which concerns on embodiment. A plan view of the movement according to the embodiment as viewed from the front side. The side view of the escapement and the speed governor which concerns on embodiment. A plan view of the escapement according to the embodiment as viewed from the front side. A perspective view of the swing seat according to the embodiment as viewed from the front side. A perspective view of the swing seat according to the embodiment as viewed from the back side. FIG. 6 is a perspective view of a swing seat in which the swing stone and the contact claw stone are not shown. FIG. 6 is a cross-sectional view taken along the line VIII-VIII of FIG. A perspective view of the escape wheel according to the embodiment as viewed from the back side. A perspective view of the ankle according to the embodiment as viewed from the front side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(clock)
FIG. 1 is an external view of the clock 1 according to the embodiment.
The watch 1 is a watch case 3 having a case lid (not shown) and a glass 2, a movement 4, a dial 5 having a scale indicating information about the time, and various pointers (hour hand 6, minute hand 7, and second hand 8). Etc. are incorporated and configured.

(Movement)
FIG. 2 is a plan view of the movement 4 according to the embodiment as viewed from the front side. In FIG. 2, in order to make the drawings easier to see, some of the various parts constituting the movement 4 are omitted, and the various parts are shown in a simplified manner. Further, in the following description, the glass 2 side (dial plate 5 side, see FIG. 1) of the watch case 3 (see FIG. 1) is referred to as the “back side” of the movement 4 with respect to the main plate 10 constituting the substrate of the movement 4. , The case lid side (the side opposite to the dial 5) is referred to as the "front side" of the movement 4. The movement 4 includes a main plate 10, a front wheel train 11, a speed governor 12 having one or more clock components 9, and an escapement 13.

(Front wheel train)
The front wheel train 11 has a barrel wheel 14, a second wheel 15, a third wheel 16, and a fourth wheel 17. The barrel wheel 14 is pivotally supported between the main plate 10 and the barrel receiver (not shown), and a mainspring (power source) (not shown) is housed inside. The mainspring is wound up by the rotation of the square hole wheel 18. The square hole wheel 18 is rotated through a winding wheel train (not shown) by the rotation of the winding stem (not shown) connected to the crown 19.

The second wheel 15, the third wheel 16, and the fourth wheel 17 are pivotally supported between the main plate 10 and the train wheel receiver (not shown). When the barrel wheel 14 rotates due to the elastic restoring force of the wound mainspring, the second wheel 15, the third wheel 16 and the fourth wheel 17 rotate in order based on this rotation.

That is, the second wheel 15 meshes with the barrel wheel 14, and rotates based on the rotation of the barrel wheel 14. When the second wheel 15 rotates, a cylinder (not shown) rotates based on this rotation. A minute hand 7 (see FIG. 1) is attached to the cylinder kana, and the minute hand 7 displays a "minute" by rotating the cylinder kana. The minute hand 7 makes one rotation in one hour, that is, the rotation speed adjusted by the escapement 13 and the governor 12.

When the second wheel 15 rotates, the back wheel of the day (not shown) rotates based on this rotation, and further, the cylinder wheel (not shown) rotates based on the rotation of the back wheel of the day. In addition, the back wheel and the cylinder wheel of the sun are parts constituting the front wheel train 11. An hour hand 6 (see FIG. 1) is attached to the cylinder wheel, and the hour hand 6 displays "hour" by the rotation of the cylinder wheel. The hour hand 6 makes one rotation at a rotation speed adjusted by the escapement 13 and the governor 12, for example, in 12 hours.

The third wheel 16 meshes with the second wheel 15 and rotates based on the rotation of the second wheel 15. The fourth wheel 17 meshes with the third wheel 16 and rotates based on the rotation of the third wheel 16. A second hand 8 (see FIG. 1) is attached to the fourth wheel 17, and the second hand 8 displays "seconds" based on the rotation of the fourth wheel 17. The second hand 8 rotates at a rotation speed adjusted by the escapement 13 and the governor 12, for example, one rotation in one minute. The front wheel train 11 may have an intermediate wheel provided between the fourth wheel 17 and the escape wheel 21.

The escape wheel 21 described later is engaged with the fourth wheel 17 via the escape wheel 20 (see FIG. 4). As a result, the power (rotational energy) from the Zenmai housed in the barrel wheel 14 is transmitted to the escape wheel 21 mainly via the second wheel 15, the third wheel 16 and the fourth wheel 17. To. As a result, the escape wheel 21 rotates around the first axis O1.

(Governor)
FIG. 3 is a side view (view III of FIG. 2) of the escapement 13 and the governor 12 according to the embodiment. FIG. 4 is a plan view of the escapement 13 according to the embodiment as viewed from the front side.
As shown in FIGS. 2 and 3, the governor 12 mainly includes a balance 22. The balance with hairspring 22 includes a balance with hairspring 23, a balance wheel 24, a hairspring (not shown), and a swing seat 25 as a clock component 9. The balance spring 22 uses the hairspring as a power source to reciprocate (forward and reverse) around the second axis O2 parallel to the first axis O1 at a constant rotation cycle (swing angle) according to the output torque of the barrel wheel 14. Rotate.

The balance sheet 23 is provided coaxially with the second axis O2. A tapered upper tenon portion 23a (front side end portion) and a lower tenon portion 23b (back side end portion) are formed at both ends of the balance sheet 23 in the axial direction. The upper tenon portion 23a is supported by a balance bearing (not shown) via a bearing. The lower tenon portion 23b is supported by the main plate 10 via a bearing 30. Therefore, the balance sheet 23 is rotatably supported around the second axis O2 with respect to the balance sheet receiving and the main plate 10. A part of the outer peripheral portion of the balance wheel 23 is a small brim 29 having a backlash 28. The Tsukigata 28 is recessed in a curved shape inward in the radial direction from the outer peripheral portion of the balance sheet 23. The Tsukigata 28 functions as a relief portion for preventing the sword tip 70, which will be described later, from coming into contact with the small brim 29 when the pallet fork 69 (see FIG. 4), which will be described later, and the swing stone 38 are engaged.

The balance wheel 24 has a rim portion 33 and a connecting portion 34. The rim portion 33 is formed in an annular shape centered on the second axis O2. The connecting portion 34 is provided between the balance sheet 23 and the rim portion 33, and extends along the radial direction of the balance sheet 23. The connecting portion 34 connects the balance sheet 23 and the rim portion 33. A plurality of connecting portions 34 (4 in this embodiment) are provided at equal intervals in the circumferential direction.

The hairspring (not shown) is attached to the outer peripheral portion of the balance wheel 23. Specifically, a whiskers ball (not shown) is externally fixed to the outer peripheral portion of the balance wheel 23, and the inner end portion of the whiskers mainspring is fixed to the whiskers balls. The balance spring 23 rotates forward and reverse at a constant swing angle around the second axis O2 by the power transmitted from the hairspring.

As shown in FIGS. 3 and 4, a swing seat 25, which is a component of the balance with hairspring 22 and a component of the escapement 13, is externally fixed to the balance sheet 23 as a clock component 9. The swing seat 25 is attached to the back side of the small brim 29 provided on the balance sheet 23 in the axial direction of the second axis O2. The swing seat 25 is arranged coaxially with the second axis O2. The swing seat 25 is formed of a material having a crystal orientation such as a metal material or single crystal silicon. The swing seat 25 is formed, for example, by a MEMS process. The manufacturing method of the swing seat 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.

FIG. 5 is a perspective view of the swing seat 25 according to the embodiment as viewed from the front side. FIG. 6 is a perspective view of the swing seat 25 according to the embodiment as viewed from the back side. FIG. 7 is a perspective view of the swing seat 25 in which the swing stone 38 and the contact claw stone 39 in FIG. 6 are not shown. FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG.
As shown in FIGS. 5 to 7, the swing seat 25 is formed in a flat plate shape with the axial direction of the second axis O2 as the thickness direction. The swing seat 25 has a balance center insertion hole 35, a fixing portion 36, and an adhesive region limiting portion 37.

The balance sheet insertion hole 35 is provided coaxially with the second axis O2. The balance sheet insertion hole 35 penetrates the swing seat 25 along the axial direction of the second axis O2. A balance sheet 23 (see FIG. 3) is inserted and fixed in the balance sheet insertion hole 35.

The fixing portion 36 is a recess provided in the swing seat 25. The fixing portion 36 adheres and fixes the bonded member 40 such as the swing stone 38 and the contact claw stone 39 to the swing seat 25 with the adhesive 45. Specifically, the fixing portion 36 has a first through hole 41 (a through hole according to the claim) and a first slit 42.
The first through hole 41 penetrates the swing seat 25 along the axial direction of the second axis O2. The first through hole 41 has a flat surface on the outer side in the radial direction when viewed from the axial direction, and is formed in a semicircular shape bulging in an arc on the inner side in the radial direction. A flutter stone 38 formed from an artificial gem such as ruby is lightly press-fitted into the first through hole 41.
The flutter stone 38 is formed in 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. As shown in FIG. 5, the swing stone 38 projects from the swing seat 25 toward the front side. The flutter stone 38 is fixed to the flutter seat 25 with an adhesive 45 (see FIG. 7) described in detail later.

The first slit 42 is formed in a U shape that extends along the radial direction and opens outward in the radial direction when viewed from the axial direction. A contact claw stone 39 is inserted into the first slit 42. Specifically, the contact claw stone 39 is inserted into the first slit 42 from the outside in the radial direction and is fixed to the swing seat 25 by the adhesive 45. The contact claw stone 39 is formed of an artificial gem such as a ruby, like the swing stone 38. The contact claw stone 39 is formed in a rectangular plate shape extending along the radial direction of the swing seat 25, and the tip portion thereof protrudes outward in the radial direction from the outer peripheral edge of the swing seat 25. The contact claw stones 39 are arranged so as not to protrude from the swing seat 25 on both sides in the axial direction of the second axis O2.

The contact claw stone 39 formed in this way can repeat contact (collision) and separation with the escape wheel 21 described later by the rotation of the balance with hairspring 22 (see FIG. 3) (FIG. 4). See also). When the escape wheel 52 of the escape wheel 21 comes into contact with the contact claw stone 39, energy is transmitted from the escape wheel 21 to the contact claw stone 39.

As shown in FIGS. 6 and 7, the adhesive region limiting portion 37 is provided on the surface of the swing seat 25 facing the back side. The adhesive area limiting portion 37 is provided on the opening edge portion 43 of the fixing portion 36. The adhesive area limiting portion 37 limits the area to which the adhesive 45 is applied to a desired range. Specifically, the adhesive region limiting portion 37 is a stepped portion 44 formed on the swing seat 25. The step portion 44 is formed so as to be recessed from the end surface on the back side of the swing seat 25 so as to reduce the thickness of the swing seat 25. The step portion 44 is formed outside the fixed portion 36 and along the shape of the fixed portion 36 when viewed from the axial direction. The step portion 44 is provided over the entire circumference of the opening edge portion 43 of the fixing portion 36. In the present embodiment, the step portion 44 is an opening edge portion 43 of the first through hole 41 and the first slit 42, and is formed on a surface facing the back side of the swing seat 25, respectively.

As shown in FIG. 8, the step portion 44 is filled with the adhesive 45. With the swing stone 38 arranged in the first through hole 41, the protruding height of the end surface 38a on the back side of the swing stone 38 with respect to the swing seat 25 is higher than the bottom portion 47 of the step portion 44 and the top portion of the step portion 44. It is 48 or less. In the present embodiment, the end surface 38a on the back side of the swing stone 38 is arranged so as to be flush with the top 48 of the step portion 44 (that is, the surface facing the back side of the swing seat 25). Further, the surface 45a of the adhesive 45 is filled in the step portion 44 so as to be flush with the top 48 of the step portion 44. As a result, when the step portion 44 is filled with the adhesive 45, the adhesive 45 is applied to the side surface 38b of the flutter stone 38. The end surface 38a of the swing stone 38 may be located between the bottom portion 47 and the top portion 48 of the step portion 44. In this case, the adhesive 45 is applied not only to the side surface 38b of the swing stone 38 but also to the end surface 38a on the back side of the swing stone 38.

(Escapement)
As shown in FIG. 2, the escapement 13 connects the front wheel train 11 and the speed governor 12. The escapement 13 transmits the driving force from the front wheel train 11 to the speed governor 12, and controls the rotation of the front wheel train 11 by adjusting the rotation speed by the speed governor 12. As shown in FIG. 3, the escapement 13 is provided on the back side of the balance with hairspring 22. The escapement 13 has an escape wheel 21 and an ankle 49.

As shown in FIGS. 3 and 4, the escape wheel 21 has an escape shaft portion 50 and an escape gear 51 as a clock component 9.
The escape shaft portion 50 is provided coaxially with the first axis line O1. The escape shaft portion 50 is formed with an escape kana 20 that meshes with the fourth wheel 17. A tapered upper tenon portion 50a and a lower tenon portion 50b are formed at both ends of the escape shaft portion 50 in the axial direction, respectively. The escape wheel 21 is pivotally supported between the main plate 10 (see FIG. 2) and the train wheel receiver (not shown) via the upper tenon portion 50a and the lower tenon portion 50b. The escape shaft portion 50 rotates around the first axis O1.

The escape gear 51 is provided on the back side in the axial direction of the first axis O1 from the escape gear 20. As shown in FIG. 3, the escape gear 51 is provided at a position equivalent to that of the swing seat 25 in the axial direction. The escape wheel 21 is integrally fixed to the escape shaft portion 50 by, for example, press fitting. As shown in FIG. 4, the escape gear 51 has a plurality of escape teeth 52 on the outer peripheral portion. The escape gear 51 rotates integrally with the escape shaft portion 50 with the first axis O1 as the center of rotation.

FIG. 9 is a perspective view of the escape wheel 21 according to the embodiment as viewed from the back side.
The escape gear 51 is formed of a material having a crystal orientation, such as a metal material or single crystal silicon, like the swing seat 25, for example. Examples of the method for manufacturing the escape gear 51 include a MEMS process, a LIGA process incorporating an optical method such as electroforming and photolithography technology, DRIE, and metal powder injection molding (MIM).

The escape gear 51 extends outward in the radial direction from the annular hub portion 54 in which the shaft insertion hole 53 is formed as a fixing portion 36 in the central portion and the hub portion 54, and is equally spaced in the circumferential direction. It is configured by integrally forming a plurality of spoke portions 55 arranged apart from each other. The escape shaft portion 50 is inserted into the central shaft insertion hole 53. The escape shaft portion 50 is fixed to the escape gear 51 by an adhesive 45.

A plurality of spoke portions 55 (eight in the present embodiment) are provided at equal intervals in the circumferential direction. The spoke portion 55 is formed so as to taper toward the outside in the radial direction. The spoke portion 55 is formed so that the tip portion located on the outer side in the radial direction bends in one direction in the circumferential direction. This bent tip portion functions as an escape tooth 52. The side surface of the escape tooth 52 facing the other side in the circumferential direction is a working surface 52a that contacts the contact claw stone 39 and engages with the claw stone 61 and the claw stone 62, which will be described later. A lightening hole 56 is formed at the base end portion of each spoke portion 55. The lightening hole 56 extends in the radial direction along the spoke portion 55 when viewed from the axial direction of the first axis O1, and is curved in one of the circumferential directions toward the inside in the radial direction.

The escape gear 51 has a stepped portion 44 as an adhesive region limiting portion 37 at the opening edge portion 43 of the fixing portion 36 (shaft insertion hole 53), similarly to the swing seat 25 described above. In the present embodiment, the step portion 44 is provided on the surface of the escape gear 51 facing the back side (the surface opposite to the escape gear 20). The step portion 44 is formed over the entire circumference of the opening edge portion 43 of the shaft insertion hole 53. That is, with the escape shaft portion 50 arranged in the shaft insertion hole 53 of the escape gear 51, the step portion 44 is provided on the outer peripheral portion of the escape shaft portion 50. The step portion 44 is filled with the adhesive 45. As a result, the escape gear 51 and the escape shaft portion 50 are fixed.

As shown in FIG. 4, the escape wheel 21 configured in this way directly transmits the transmitted power to the balance with hairspring 22 when the balance with hairspring 22 (see FIG. 3) rotates in the first rotation direction W1. When the balance with hairspring 22 rotates in the second rotation direction W2 opposite to the first rotation direction W1, the transmitted torque is indirectly transmitted to the balance with hairspring 22 via the ankle 49 described later. It has a role.

FIG. 10 is a perspective view of the ankle 49 according to the embodiment as viewed from the front side.
As shown in FIGS. 4 and 10, the ankle 49 rotates around the third axis O3 parallel to the first axis O1 based on the rotation of the balance with hairspring 22. The pallet fork 49 controls the rotation of the escape wheel 21, that is, controls the start and stop of the rotation of the escape wheel 21. As shown in FIG. 10, the pallet fork 49 includes an pallet fork 57, an ankle body 58 as a clock component 9, and a claw stone 61 and a claw stone 62 as a member to be adhered 40.

The ankle true 57 is arranged coaxially with the third axis O3. A tapered upper tenon portion 57a and a lower tenon portion 57b are formed at both ends of the pallet fork 57 in the axial direction. The ankle true 57 is pivotally supported between the main plate 10 (see FIG. 2) and the ankle receiver (not shown) via the upper tenon portion 57a and the lower tenon portion 57b.

The pallet fork 58 is integrally fixed to the pallet fork 57 by, for example, press fitting. The ankle body 58 is formed in a plate shape by, for example, electroforming or a MEMS process. As shown in FIG. 3, the ankle body 58 is arranged on the front side in the axial direction of the first axis O1 with respect to the escape wheel 21 and the swing seat 25. As shown in FIG. 10, the ankle body 58 has two ankle beams 63 and 64, a fixing portion 36, and an adhesive region limiting portion 37.

The two ankle beams 63 and 64 extend from the ankle true 57 along the radial direction, respectively. Ankle true insertion holes 66 for fixing the pallet fork 57 are formed in the connecting portion 65 of the two pallet fork beams 63 and 64 in the pallet fork 58. The pallet fork 58 is integrally fixed with the pallet fork 57 by fitting the pallet fork 57 into the pallet fork insertion hole 66 by press fitting or the like.
As shown in FIG. 4, one ankle beam 63 is formed so as to extend from the connecting portion 65 to which the ankle true 57 is fixed toward the swing seat 25 side. The other ankle beam 64 is formed so as to extend from the connecting portion 65 to which the ankle true 57 is fixed toward the traveling side (opposite side of the swing seat 25) in the rotational direction of the escape wheel 21. Similar to the escape wheel 21, the ankle beams 63 and 64 are appropriately provided with lightening holes 67.

As shown in FIGS. 4 and 10, a pair of stag beetles 68 arranged side by side in the circumferential direction of the third axis O3 are provided at the tip of one of the ankle beams 63. The inside of the stag beetle 68 is an ankle haco 69 that opens toward the balance with hairspring 23 and accommodates a flutter stone 38 that moves with the reciprocating rotation of the balance with hairspring 22 so that it can be disengaged.

Further, a sword tip 70 is attached to the tip of one of the ankle beams 63.
The sword tip 70 is integrally fixed to the ankle beam 63 by being fitted into the tip of one of the ankle beams 63 from the front side in the axial direction of the third axis O3 by, for example, press fitting. However, the present invention is not limited to this case, and the sword tip 70 may be fixed to the tip of one of the ankle beams 63 by using an adhesive 45, caulking or the like.

The sword tip 70 is located between a pair of stag beetles 68 (that is, located inside the ankle haco 69) in a plan view, and extends so as to slightly protrude toward the stag beetle 23 side from the stag beetle 68. The sword tip 70 is fixed so as to be located on the front side of the swing stone 38 and at the same height as the small brim 29 (see FIG. 3) in the axial direction of the third axis O3.
As shown in FIG. 3, the tip portion of the sword tip 70 has a slight gap with respect to the portion of the outer peripheral surface of the small brim 29 excluding the tsukigata 28 when the swing stone 38 is separated from the ankle jewel 69. Facing in the radial direction. The tip of the sword tip 70 is housed in the Tsukigata 28 in a state where the swing stone 38 is engaged with the pallet fork 69.

As shown in FIG. 10, the fixing portion 36 is a recess provided in each of the ankle beams 63 and 64, respectively. The fixing portion 36 adheres and fixes the bonded member 40 such as the claw stone 61 and the claw stone 62 to the ankle body 58 with the adhesive 45. Specifically, the fixing portion 36 has a second through hole 71 provided in one ankle beam 63 and a second slit 72 provided in the other ankle beam 64.

The second through hole 71 penetrates the ankle body 58 along the axial direction of the third axis O3. The second through hole 71 is formed in a quadrangular shape having an inclined surface 71a on the escape wheel 21 side when viewed from the axial direction. A claw stone 61 formed from an artificial gem such as ruby is lightly press-fitted into the second through hole 71.
The claw stone 61 is formed in a quadrangular shape having an inclined surface 61a on the escape wheel 21 side, corresponding to the shape of the second through hole 71. The claw stone 61 is fixed to the ankle body 58 by the adhesive 45. The claw stone 61 projects from the ankle body 58 toward the back side. The back end of the claw stone 61 extends to a position equivalent to that of the escape wheel 21 in the axial direction (see FIG. 3). As shown in FIG. 4, the claw stone 61 can be engaged with and disengaged from the working surface 52a of the escape tooth 52 in the escape gear 51, and stops and releases the escape wheel 21.

The second slit 72 is formed in a U shape that opens toward the escape wheel 21 side when viewed from the axial direction. A claw stone 62 is inserted into the second slit 72. Specifically, the claw stone 62 is inserted into the second slit 72 from the opening side of the second slit 72, and is fixed to the ankle body 58 by the adhesive 45. Like the claw stone 61, the claw stone 62 is formed of an artificial gem such as ruby. The claw stone 62 is formed in a rectangular plate shape extending along the second slit 72, and the tip portion thereof protrudes outward from the outer peripheral edge of the ankle body 58. As shown in FIG. 10, the claw stone 62 projects from the ankle body 58 toward the back side. The back end of the claw stone 62 extends to a position equivalent to that of the escape wheel 21 in the axial direction. The stake stone 62 can be engaged and disengaged from the working surface 52a of the escape wheel 52 in the escape gear 51, and the escape wheel 21 is stopped and stopped, and the escape wheel 21 is used. The transmitted power is transmitted to the balance with hairspring 22 via the ankle body 58.

The adhesive region limiting portion 37 of the ankle body 58 is provided at the opening edge portion 43 of the fixing portion 36, similarly to the swing seat 25 and the escape gear 51 described above. The adhesive area limiting portion 37 is a stepped portion 44. The step portion 44 is formed over the entire circumference of the opening edge portion 43 of the fixing portion 36 of the ankle body 58. Specifically, the step portion 44 is an opening edge portion 43 of the second through hole 71 and the second slit 72, and is formed on a surface facing the front side of the ankle body 58, respectively. The step portion 44 is filled with the adhesive 45. As a result, the claw stone 61 and the claw stone 62 are fixed to the ankle body 58. The positional relationship between the step portion 44 provided on the ankle body 58 and the claw stone 61 and the claw stone 62 in the axial direction of the third axis O3 is the step portion 44 provided on the swing seat 25 and the swing stone 38. It is equivalent to the positional relationship with the end face 38a of.

The ankle 49 formed in this way rotates around the third axis O3 based on the rotation of the pump 22 as described above.
Specifically, as shown in FIG. 4, the pallet fork 49 is directed in the direction opposite to the rotation direction of the balance with hairspring 22 by the swing stone 38 that moves with the reciprocating rotation of the balance with hairspring 22 (see FIG. 3). It rotates around the third axis O3. At this time, the claw stone 61 and the claw stone 62 alternately repeat the approach and the evacuation of the escape gear 51 with respect to the rotation locus R by the rotation of the ankle 49. As a result, the working surface 52a of the escape tooth 52 in the escape gear 51 can be engaged with the engaging surface of the claw stone 61 or the engaging surface of the exit claw stone 62.
In particular, since the claw stone 61 and the claw stone 62 are arranged so as to sandwich the third axis O3, the claw stone 62 when the escape tooth 52 and the claw stone 61 are engaged with each other. Is detached from the escape tooth 52, and the nail stone 61 is detached from the escape tooth 52 when the escape tooth 52 and the exit nail stone 62 are engaged with each other.

(Action, effect)
Next, the actions and effects of the above-mentioned timepiece component 9, balance piece 22, movement 4 and timepiece 1 will be described.
According to the clock component 9 of the present embodiment, the clock component 9 (the swing seat 25, the escape gear 51 and the ankle body 58 in the present embodiment) has an adhesive region limiting portion 37, and the adhesive region limiting portion 37. Therefore, the region of the adhesive 45 applied to the timepiece component 9 can be limited to a desired range. As a result, the amount of protrusion of the adhesive 45 from the watch component 9 can be suppressed as compared with the conventional technique that does not have the adhesive area limiting portion 37. Therefore, it becomes easy to secure the clearance between the parts, and the parts can be arranged close to each other. In addition, a predetermined amount of the adhesive 45 can be stably applied without variations in the coating amount and the coating range of the adhesive 45 for each part. Therefore, when these watch parts 9 are incorporated into the movement 4, it is possible to suppress the occurrence of an imbalance (single weight) in the center of gravity due to the difference in the amount of the adhesive 45 applied.
Therefore, it is possible to provide the timepiece component 9 which can suppress the increase in size and improve the timekeeping accuracy.

The fixing portion 36 is a concave portion, and a step portion 44 is provided as an adhesive region limiting portion 37 on the opening edge portion 43 of the concave portion. Therefore, by applying the adhesive 45 to the stepped portion 44 provided on the timepiece component 9, a predetermined amount of the adhesive 45 can be stably applied. Further, by providing the step portion 44, it is possible to prevent the adhesive 45 from protruding from the surface of the timepiece component 9. Therefore, the adhesive area limiting portion 37 can be provided with a simple structure, and the weight and size of the watch component 9 can be suppressed.

Since the step portion 44 is provided over the entire circumference of the opening edge portion 43 in the recess, the watch component 9 and the adherend are adhered as compared with the case where the step portion 44 is provided on a part of the opening edge portion 43. It is possible to increase the contact area (adhesive area) of the adhesive 45 with respect to the member 40 (the flutter stone 38, the contact claw stone 39, the escape shaft portion 50, the claw stone 61 and the claw stone 62 in the present embodiment). .. As a result, the adhesive member 40 can be fixed more firmly.

Since the end face of the member 40 to be adhered (for example, the end face 38a of the flutter stone 38 in the present embodiment) is located on the top 48 side of the bottom 47 of the step 44, when the step 44 is filled with the adhesive 45. In addition, the adhesive 45 can be applied to the side surface of the member to be adhered 40 (for example, the side surface 38b of the swing stone 38) located inside the step portion 44. Therefore, the adhesive area of the adhesive 45 to the bonded member 40 can be increased, and the bonded member 40 can be fixed more firmly.

Since the timepiece component 9 is formed by the MEMS process, the timepiece part 9 having the adhesive region limiting portion 37 can be easily formed. It can also be applied to minute parts such as watch parts 9. Therefore, the watch component 9, which is a particularly fine and precise component, can be configured to have an adhesive region limiting portion 37 in which the amount of the adhesive 45 and the coating range can be suitably set.

The swing seat 25 is provided with a fixing portion 36 and an adhesive area limiting portion 37, and a swing stone 38 is adhesively fixed to the fixing portion 36 as a member to be adhered 40. As a result, it can be suitably used when the swing stone 38 is adhered and fixed to the swing seat 25. The swing seat 25 reciprocates around a rotation axis, and this rotation cycle affects the timekeeping accuracy of the clock 1. Therefore, by forming the above-mentioned adhesive region limiting portion 37 on the swing seat 25, the swing stone 38 is stably fixed to the swing seat 25, and the swing seat 25 reciprocates by suppressing the one-sided weight. It is possible to suppress the posture difference caused by the imbalance of the center of gravity when moving. Therefore, the timepiece component 9 can be used to improve the timekeeping accuracy of the timepiece 1. Further, since the amount of the adhesive 45 protruding from the swing seat 25 can be suppressed, other parts can be arranged in the vicinity of the swing seat 25.

The ankle body 58 is provided with a fixing portion 36 and an adhesive area limiting portion 37, and the claw stone 61 and the claw stone 62 are adhesively fixed to the fixing portion 36 as the member to be adhered 40. As a result, it can be suitably used when the claw stone 61 and the claw stone 62 are adhesively fixed to the ankle body 58. The ankle body 58 reciprocates around the third axis O3, and this rotation cycle affects the timekeeping accuracy of the clock 1. Therefore, by forming the above-mentioned adhesive region limiting portion 37 on the ankle body 58, the claw stone 61 and the claw stone 62 are stably fixed to the ankle body 58, and one-sided weight is suppressed. The escapement error and the attitude difference caused by the imbalance of the center of gravity when the ankle body 58 reciprocates can be suppressed. Therefore, the timepiece component 9 can be used to improve the timekeeping accuracy of the timepiece 1. Further, since the amount of protrusion of the adhesive 45 from the ankle body 58 can be suppressed, other parts can be arranged in the vicinity of the ankle body 58.

The escape gear 51 is provided with a fixing portion 36 and an adhesive region limiting portion 37, and the escape shaft portion 50 is adhesively fixed to the fixing portion 36 as a member to be adhered 40. Thereby, it can be suitably used when the escape gear 51 and the escape shaft portion 50 are adhesively fixed. The escape gear 51 maintains the timing accuracy of the clock 1 by rotating around the escape shaft portion 50 integrally with the escape shaft portion 50 at a fixed cycle. Therefore, by forming the above-mentioned bonding region limiting portion 37 on the escape gear 51, the escape gear 51 and the escape shaft portion 50 can be stably fixed and one-sided weight can be suppressed. It is possible to suppress variations in rotational torque when the gear 51 rotates. Therefore, the escape gear 51 can be rotated at a constant cycle to improve the timing accuracy of the clock 1. Further, since the amount of protrusion of the adhesive 45 from the escape gear 51 can be suppressed, other parts can be arranged in the vicinity of the escape gear 51.

According to the timepiece 22 of the present embodiment, since the above-mentioned timepiece parts 9 are provided, the timepiece parts 9 in the timepiece 22 can be arranged close to each other, and the weight of each timepiece part 9 can be suppressed. it can. Therefore, it is possible to reduce the size of the balance sheet 22 and suppress the posture difference due to the one-sided weight to improve the accuracy of the balance sheet 22.
Therefore, it is possible to provide a compact and highly accurate balance sheet 22 provided with a timepiece component 9 capable of suppressing the increase in size and improving the timekeeping accuracy.

According to the movement 4 of the present embodiment, since the above-mentioned compact and highly accurate balance with hairspring 22 is provided, it is possible to improve the timekeeping accuracy of the movement 4 while suppressing the increase in size of the movement 4.
Therefore, it is possible to provide a high-performance movement 4 provided with a timepiece component 9 capable of suppressing an increase in size and improving timing accuracy.

According to the timepiece 1 of the present embodiment, since the above-mentioned small and highly accurate movement 4 is provided, the timekeeping accuracy can be improved while the timepiece 1 is miniaturized.
Therefore, it is possible to provide a small and highly accurate timepiece 1 provided with a timepiece component 9 capable of suppressing an increase in size and improving the timekeeping accuracy.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the fixing portion 36 has the through holes 41, 71 and the slits 42, 72, but the present invention is not limited to this. The fixing portion 36 may be, for example, a bottomed recess provided without penetrating the watch component 9.

In the above-described embodiment, the adhesive 45 is configured to fill the step portion 44 so that the surface 45a of the adhesive 45 is flush with the top 48 of the step portion 44, but the present invention is not limited to this. The adhesive 45 may be filled so that the surface 45a of the adhesive 45 does not reach the top 48 of the step portion 44.
Further, the surface 45a of the adhesive 45 may protrude from the top 48 of the step portion 44. Even when the adhesive 45 protrudes from the top 48 in this way, the protruding height of the adhesive 45 when the same amount of the adhesive 45 is used as compared with the conventional technique having no step portion 44 can be obtained. It can be suppressed.

In addition, it is possible to replace the constituent elements in the above-described embodiment with well-known constituent elements as appropriate without departing from the spirit of the present invention, and the above-mentioned modified examples may be appropriately combined.

1 Clock 4 Movement 9 Clock parts 22 Temp 25 Swing seat 36 Fixed part 37 Adhesive area limiting part 38 Swing stone 38a End face (end face) on the back side of the swing stone
40 Adhesive member 41 First through hole (through hole)
43 Opening edge 44 Step 45 Adhesive 47 Bottom 48 Top 50 Gangi shaft 51 Gangi gear 58 Ankle body 61 Claw stone (claw stone)
62 Claw stone (claw stone)
71 Second through hole (through hole)

Claims (14)

A fixed part where the member to be adhered is adhesively fixed by an adhesive,
An adhesive area limiting portion provided on the fixing portion and limiting the region to which the adhesive is applied to a desired range,
Have a,
The fixing portion is a recess and
A speed governor in which a step portion is provided at the opening edge portion of the recess as the adhesive region limiting portion . Has a front Symbol fixing portion and the bonding region limiting portion is provided swing seat,
Wherein the fixing unit, the speed governor according to claim 1, swing stone is bonded Examples bonded component. The speed governor according to claim 1 or 2, wherein the step portion is provided over the entire circumference of the opening edge portion in the recess. The fixing portion has a through hole in which the adhered member is arranged.
According to claim 1 , the protruding height of the member to be adhered in the fixing portion in the penetrating direction of the through hole is higher than the bottom portion of the step portion and is adhesively fixed so as to be equal to or lower than the top portion of the step portion. Item 3. The speed governor according to any one of items 3 . The speed governor according to any one of claims 1 to 4, which is formed by a MEMS process. A fixed part where the member to be adhered is adhesively fixed by an adhesive,
An adhesive area limiting portion provided on the fixing portion and limiting the region to which the adhesive is applied to a desired range,
Have a,
The fixing portion is a recess and
An escapement in which a step portion is provided at the opening edge portion of the recess as the adhesive region limiting portion . The escape wheel has an escape wheel provided with the fixing portion and the bonding area limiting portion on the escape gear.
The escapement according to claim 6 , wherein the escapement shaft portion is adhesively fixed to the fixing portion as the adhesive member. The ankle body has an ankle provided with the fixing portion and the adhesive region limiting portion.
The escapement according to claim 6 , wherein a claw stone is adhered and fixed to the fixing portion as the adhesive member. The escapement according to any one of claims 6 to 8, wherein the step portion is provided over the entire circumference of the opening edge portion in the recess. The fixing portion has a through hole in which the adhered member is arranged.
According to claim 6 , the protruding height of the member to be adhered in the fixing portion in the penetrating direction of the through hole is higher than the bottom portion of the step portion and is adhesively fixed so as to be equal to or lower than the top portion of the step portion. Item 9. The escapement according to any one of items 9 . The escapement according to any one of claims 6 to 10, which is formed by a MEMS process. A movement including the speed governor according to any one of claims 1 to 5 . A movement comprising the escapement according to any one of claims 6 to 11 . A timepiece comprising the movement according to claim 12 or 13 .

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