JP2021139636A - Balance regulation mechanism, movement for timepiece, and timepiece - Google Patents

Abstract

To provide a balance regulation mechanism capable of smoothly restarting operation of a balance.SOLUTION: A balance regulation mechanism 19 includes: a winding stem 51 supported by a ground plate; a setting lever 60 which rotates with respect to a base plate with an axial displacement of the winding stem 51; a small iron lever 90 which is engaged with the setting lever 60 and rotates with the rotation of the setting lever 60; a small iron wheel 45 which is supported by the small iron lever 90 and transmits the rotation of the winding stem 51 to a pointer when the small iron lever 90 is positioned at a prescribed position; and a balance regulation lever 100 which is engaged with the small iron lever 90 and provided displaceably between a regulation position in contact with the balance with rotation of the small iron lever 90 and an evacuation position away from the balance.SELECTED DRAWING: Figure 4

Description

The present invention relates to a balance with hairdressing mechanism, a watch movement and a watch.

Generally, a mechanical timepiece is provided with a second hand setting (stop second) mechanism used for setting the time. This second hand setting mechanism has a setting lever that operates by sliding the winding stem. Then, the regulation lever is operated to regulate the balance and stop the movement of the train wheel (see, for example, Patent Document 1).

China Utility Model No. 87206253

By the way, if the regulation position of the balance spring is near the dead center position, or if the amount of winding of the hairspring is small, the balance spring may not restart even if the regulation of the balance spring is released. Therefore, it is desired to develop a mechanism capable of smoothly restarting the operation of the balance by giving a movement to the balance when the regulation of the balance is released.

Therefore, the present invention provides a balance sheet adjusting mechanism capable of smoothly restarting the operation of the balance sheet, and a watch movement and a timepiece equipped with the balance sheet regulation mechanism.

The balance withcing mechanism of the present invention engages with the winding lever supported by the main plate, the lever that rotates with respect to the main plate with the axial displacement of the winding stem, and the rotation of the lever. Engages with a small iron lever that rotates with movement, a transmission wheel that is supported by the small iron lever and transmits the rotation of the winding stem to a pointer when the small iron lever is located at a predetermined position, and the small iron lever. It is characterized by including a regulation lever provided so as to be displaceable between a regulation position that comes into contact with the balance with rotation of the small iron lever and a retracted position that is separated from the balance.

According to the present invention, the regulation lever that comes into contact with the balance with hairspring is provided as a separate member from the small iron lever. Therefore, the regulation lever can be brought into contact with and separated from the balance with a movement different from that of the small iron lever. Therefore, when releasing the regulation of the balance, it becomes easy to displace the regulation lever so as to give motion to the balance. Therefore, the operation of the balance with hairspring can be restarted smoothly.

In the balance plate regulation mechanism, the regulation lever has a guided portion guided by the main plate, and is rotatably provided with respect to the small iron lever at an engaging portion with the small iron lever. Is guided by the main plate along the displacement direction of the engaging portion between the regulation lever and the small iron lever when the regulation lever is displaced from the regulation position toward the retracted position while being in contact with the balance. May be displaced.

According to the present invention, the regulation lever can be moved substantially in parallel while the regulation lever is in contact with the balance with hairspring. As a result, when the regulation lever is displaced from the regulation position to the retracted position, the balance with rotation of the balance lever can be rotated to give motion to the balance with each other. Therefore, the operation of the balance with hairspring can be restarted smoothly.

In the above-mentioned balance plate adjusting mechanism, the regulation lever is arranged on the same side as the balance plate in the thickness direction of the main plate with respect to the main plate, and at least a part of the small iron lever has the thickness with respect to the main plate. It may be arranged on the side opposite to the regulation lever in the direction.

When the entire small iron lever is arranged on the same side as the regulation lever in the thickness direction with respect to the main plate, the arrangement of the front wheel train that transmits power to the balance is restricted by the small iron lever. According to the present invention, since the small iron lever is arranged on the side opposite to the front wheel train with respect to the main plate, it is possible to suppress a decrease in the basic performance of the watch movement due to a decrease in the degree of freedom in the arrangement of the front wheel train.

In the above-mentioned balance with hairdressing mechanism, in the process of displacement from the retracted position to the above-mentioned regulation position, the regulation lever is slidably contacted with a step of the main plate and guided in the thickness direction, and comes into contact with the balance with respect to the balance with respect to the thickness direction. You may.

According to the present invention, since the trajectory of the regulation lever during operation overlaps with the balance when viewed from the thickness direction of the main plate, it is possible to improve the degree of freedom in arranging the parts around the regulation lever. Further, since the regulation lever is guided in the thickness direction of the main plate by the step of the main plate, a structure capable of displacementing the regulation lever in the thickness direction of the main plate can be obtained without providing a new separate component.

The watch movement of the present invention is characterized by including the above-mentioned balance plate regulating mechanism, the main plate, and a balance rotatably supported by the main plate.
The timepiece of the present invention is characterized by including the above-mentioned timepiece movement.

According to the present invention, it is possible to provide a timepiece movement and a timepiece capable of smoothly restarting the operation of the balance with hairspring.

According to the present invention, it is possible to provide a balance with hairdressing mechanism, a movement for a timepiece, and a timepiece that can smoothly restart the operation of the timepiece.

It is a top view which shows the clock which concerns on 1st Embodiment. It is a top view which looked at the movement which concerns on 1st Embodiment from the front side. It is a top view which looked at the movement which concerns on 1st Embodiment from the back side. It is a perspective view which looked at the balance | balance regulation mechanism which concerns on 1st Embodiment from the back side. It is a perspective view which looked at the balance sheet regulation mechanism which concerns on 1st Embodiment from the front side. It is a perspective view which looked at a part of the movement which concerns on 1st Embodiment from the front side. It is operation explanatory drawing of the balance sheet regulation mechanism which concerns on 1st Embodiment. It is operation explanatory drawing of the balance sheet regulation mechanism which concerns on 1st Embodiment. It is operation explanatory drawing of the balance sheet regulation mechanism which concerns on 1st Embodiment. It is operation explanatory drawing of the balance sheet regulation mechanism which concerns on 1st Embodiment. It is a perspective view which looked at the balance sheet regulation mechanism which concerns on 2nd Embodiment from the front side. It is a figure which shows a part of the cross section in the XII-XII line of FIG. It is operation explanatory drawing of the balance sheet regulation mechanism which concerns on 2nd Embodiment. It is operation explanatory drawing of the balance sheet regulation mechanism which concerns on 2nd Embodiment. It is operation explanatory drawing of the balance sheet regulation mechanism which concerns on 2nd Embodiment.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In the following embodiment, a mechanical timepiece will be described as an example of the timepiece.

Generally, a mechanical body including a driving part of a watch is referred to as a "movement". The state in which the dial and pointer are attached to this movement and put in the watch case to make a finished product is called "complete" of the watch. Of both sides in the thickness direction with respect to the main plate constituting the watch substrate, the side with the glass of the watch case (that is, the side with the dial) is referred to as the "back side" of the movement. Further, of both sides of the main plate, the side of the watch case with the case back cover (that is, the side opposite to the dial) is referred to as the "front side" of the movement. In the embodiment, the direction from the dial toward the case back cover is defined as upward, and the opposite side is defined as downward.

[First Embodiment]
FIG. 1 is a plan view showing a clock according to the first embodiment.
As shown in FIG. 1, the complete watch 1 of the present embodiment has a movement (watch movement) 10 and at least a scale indicating information about the time in a watch case including a case back cover and a glass 2 (not shown). It includes a dial 3 and a pointer including an hour hand 5, a minute hand 6, and a second hand 7. The dial 3 is formed with a day window 3a for clearly indicating the day character 40a displayed on the day wheel 40, which will be described later.

FIG. 2 is a plan view of the movement according to the first embodiment as viewed from the front side. Note that in FIG. 2, some parts constituting the movement 10 are not shown in order to make the drawings easier to see.
As shown in FIG. 2, the movement 10 has a main plate 11 constituting a substrate. The winding stem 51 is incorporated in the main plate 11. The winding stem 51 is supported by a winding core guide hole formed in the main plate 11 so as to be rotatable around the axis L and displaceable in the axial direction of the axis L (hereinafter referred to as the axis L direction). A crown 4 is connected to the winding stem 51 on the outside of the watch case shown in FIG. The movement 10 includes a front wheel train 12 and an escape governor 13 on the front side of the main plate 11.

The front train wheel 12 transmits torque to the escape governor 13. The front wheel train 12 mainly includes a pair of barrel assemblies 20A and 20B, a play gear 21, a second wheel 22, a third wheel 23, a fourth wheel 24, and an escape intermediate wheel 25. The pair of barrel assemblies 20A and 20B are arranged side by side with each other in a plan view seen from the thickness direction of the main plate 11. The barrel assemblies 20A and 20B are pivotally supported between the main plate 11 and the barrel holder (not shown). Each barrel assembly 20A and 20B includes a barrel wheel 20a for accommodating a royal fern inside, and a square hole wheel 20b arranged coaxially and relative to the barrel wheel 20a so as to be rotatable relative to the barrel wheel 20a. The outer end of the royal fern is fixed to the barrel wheel 20a, and the inner end of the royal fern is fixed to the square hole wheel 20b. As a result, the barrel wheel 20a and the square hole wheel 20b rotate relative to each other due to the torque accompanying the unwinding of the royal fern, and the barrel wheel 20a and the square hole wheel 20b are rotated relative to each other in a predetermined direction to wind up the royal fern.

The square hole wheel 20b of the barrel assembly 20A meshes with the square hole intermediate wheel 27. The square hole intermediate wheel 27 constitutes a part of the manual winding wheel train 14. The manual winding wheel train 14 transmits the rotation of the winding stem 51 to the square hole wheel 20b of one barrel assembly 20A. As a result, the square hole wheel 20b of one barrel assembly 20A is rotated by the rotation of the winding stem 51, and the royal fern of one barrel assembly 20A is wound up. The tooth portion of the barrel wheel 20a of one barrel assembly 20A meshes with the tooth portion of the barrel wheel 20a of the other barrel assembly 20B. The barrel wheel 20a of the other barrel assembly 20B is rotated by the torque accompanying the unwinding of the royal fern of one barrel assembly 20A, and winds up the royal fern of the other barrel assembly 20B. Then, the square hole wheel 20b of the other barrel assembly 20B rotates as the royal fern of the other barrel assembly 20B is unwound.

The idle gear 21, the second wheel 22, the third wheel 23, the fourth wheel 24, and the escape intermediate wheel 25 are pivotally supported between the main plate 11 and the train wheel receiver (not shown). When the play gear 21, the second wheel 22, the third wheel 23, the fourth wheel 24, and the escape wheel 25 are rotated by the elastic restoring force of the zenmai on which the square hole wheel 20b of the other barrel assembly 20B is wound up. , Rotates based on this rotation.

That is, the play gear 21 meshes with the square hole wheel 20b of the other barrel assembly 20B, and rotates based on the rotation of the square hole wheel 20b. The second wheel 22 meshes with the play gear 21 and rotates based on the rotation of the play gear 21. The third wheel 23 meshes with the second wheel 22, and rotates based on the rotation of the second wheel 22. The fourth wheel 24 meshes with the third wheel 23 and rotates based on the rotation of the third wheel 23. The rotation axis of the fourth wheel 24 is orthogonal to the axis L of the winding stem 51. The second hand 7 shown in FIG. 1 is attached to the fourth wheel 24, and the second hand 7 displays "seconds" based on the rotation of the fourth wheel 24. The second hand 7 makes one rotation per minute at the rotation speed regulated by the escape governor 13. The escape intermediate wheel 25 meshes with the fourth wheel 24 and rotates based on the rotation of the fourth wheel 24. The escape intermediate vehicle 25 meshes with the escape wheel (not shown), which will be described later.

The escape governor 13 controls the rotation of the front train wheel 12. The escape governor 13 mainly includes an escape wheel and ankle (not shown) and a balance with hairspring 32. The escape wheel is rotated by the torque transmitted from the barrels of the barrel assemblies 20A and 20B via the front wheel train 12. The pallet fork escapes the escape wheel and rotates it regularly. The balance with hairspring 32 escapes the escape wheel at a constant speed.

The balance with hairspring 32 includes a balance spring (not shown), a balance wheel 33, and a balance spring 34. The balance sheet is rotatably supported between the main plate 11 and the balance sheet receiver (not shown). The balance spring 34 is used as a power source, and the balance spring reciprocates around the first axis O1 at a constant cycle. The balance wheel 33 is fixed coaxially with the balance wheel 33. The balance wheel 33 includes an annular rim portion 33a that surrounds the balance sheet from the outside in the radial direction, and an arm 33b that connects the rim portion 33a and the balance sheet in the radial direction. The rim portion 33a is arranged coaxially with the first axis line O1. Four arms 33b are provided at intervals of 90 ° about the first axis O1. The shape of the balance wheel 33 is not limited to the illustrated example, and may be freely changed. The entire balance sheet 32 is arranged on one side of the axis L in a plan view.

FIG. 3 is a plan view of the movement according to the first embodiment as viewed from the back side. In FIG. 3, some parts constituting the movement 10 are omitted in order to make the drawing easier to see, and only a part of the date wheel 40 is shown.
As shown in FIG. 3, the movement 10 includes a back train wheel 15, a calendar mechanism 16, a time adjustment train wheel 17, and a calendar correction mechanism 18 on the back side of the main plate 11.

The back wheel train 15 mainly includes a branch wheel 36, a day back wheel 37, and a cylinder wheel 38. The branch wheel 36 is arranged coaxially with the fourth wheel 24 (see FIG. 2). The branch wheel 36 meshes with the third wheel 23 (see FIG. 2) and rotates based on the rotation of the third wheel 23. The minute hand 6 shown in FIG. 1 is attached to the minute wheel 36, and the minute hand 6 displays "minute" by the rotation of the minute wheel 36. The minute hand 6 rotates once an hour at a rotation speed regulated by the escape governor 13. The back wheel 37 of the sun meshes with the branch wheel 36 and rotates based on the rotation of the branch wheel 36. The cylinder wheel 38 is arranged coaxially with the branch wheel 36. The cylinder wheel 38 meshes with the back wheel 37 of the day and rotates based on the rotation of the back wheel 37 of the day. The hour hand 5 shown in FIG. 1 is attached to the cylinder wheel 38, and the hour hand 5 displays "hour" by the rotation of the cylinder wheel 38. The hour hand 5 rotates once every 12 hours at a rotation speed regulated by the escape governor 13.

The calendar mechanism 16 includes a day wheel 40, a first day turning intermediate car 41, a second day turning intermediate car 42, and a day turning car 43. The date wheel 40 is a ring-shaped member rotatably attached to the main plate 11. On the day wheel 40, day letters 40a (see FIG. 1) representing days 1 to 31 are sequentially displayed along the circumferential direction. A plurality of tooth portions are formed on the inner peripheral surface of the date wheel 40. The plurality of tooth portions project inward in the radial direction and are formed at intervals in the circumferential direction.

The first day turning intermediate car 41, the second day turning intermediate car 42, and the day turning wheel 43 are rotatably supported by the main plate 11. The first day turning intermediate vehicle 41 meshes with the cylinder wheel 38 and rotates based on the rotation of the cylinder wheel 38. The second day turning intermediate car 42 meshes with the first day turning intermediate car 41 and rotates based on the rotation of the first day turning intermediate car 41. The day wheel 43 includes a day wheel 43a and a day wheel 43b. The day turning gear 43a meshes with the second day turning intermediate wheel 42, and makes one rotation every 24 hours based on the rotation of the second day turning intermediate car 42. The daily rotation gear 43b uses the daily rotation gear 43a as a power source to rotate around the center of rotation of the daily rotation gear 43a once every 24 hours. The daily rotation claw 43a engages with the tooth portion of the daily wheel 40 once for each rotation to rotate the daily wheel 40 by one tooth. As a result, the calendar mechanism 16 intermittently rotates the date wheel 40.

The time adjustment train wheel 17 transmits the rotation of the winding stem 51 to the hour hand 5 and the minute hand 6 at the time of time adjustment. The time adjustment train wheel 17 includes a small iron wheel 45, a day back intermediate vehicle 46, and a time adjustment transmission vehicle 47. The small iron wheel 45 is provided so as to mesh with the squeeze wheel 52 (see FIG. 4), which will be described later. The Hinosato intermediate car 46 is rotatably supported by a small iron lever 90, which will be described later. The sun-back intermediate wheel 46 has a sun-back intermediate first gear 46a (see FIG. 5) and a sun-back intermediate second gear 46b. The day back intermediate first gear 46a and the day back intermediate second gear 46b rotate integrally. The first gear 46a in the middle of the back of the sun is always in mesh with the small iron wheel 45. As a result, the back intermediate first gear 46a and the back intermediate second gear 46b of the sun rotate based on the rotation of the small iron wheel 45. The time adjustment transmission wheel 47 is always in mesh with the second gear 46b on the back of the day, and rotates based on the rotation of the middle car 46 on the back of the day. The time adjustment notification wheel 47 is provided so as to mesh with the back wheel 37 of the day.

The calendar correction mechanism 18 transmits the rotation of the winding stem 51 to the date wheel 40 when correcting the date. The calendar correction mechanism 18 includes a first day correction transmission vehicle 48 and a second day correction transmission vehicle 49 in addition to the above-mentioned small iron vehicle 45 and the Hinosato intermediate vehicle 46. The first day correction transmission wheel 48 is provided so as to mesh with the first gear 46a in the middle of the back of the day. The first day correction transmission vehicle 48 rotates based on the rotation of the back intermediate vehicle 46 of the day by meshing with the first gear 46a of the back intermediate of the day. The second day correction transmission vehicle 49 meshes with the first day correction notification vehicle 48, and rotates based on the first day correction notification vehicle 48. The second day correction transmission vehicle 49 is supported by a lever (not shown) that swings around the rotation center of the first day correction transmission vehicle 48 as the first day correction transmission vehicle 48 rotates. The second day correction transmission wheel 49 is displaced so as to approach the day wheel 40 as the first day correction transmission wheel 48 rotates in a predetermined direction, and meshes with the teeth of the day wheel 40. As a result, the calendar correction mechanism 18 rotates the date wheel 40.

As shown in FIGS. 2 and 3, the movement 10 further includes a balance with hairdressing mechanism 19. The balance sheet regulation mechanism 19 includes a switching mechanism 50 and a balance sheet regulation lever 100.

FIG. 4 is a perspective view of the balance with hairdressing mechanism according to the first embodiment as viewed from the back side. FIG. 5 is a perspective view of the balance with hairdressing mechanism according to the first embodiment as viewed from the front side. In FIG. 4, the squeeze holder 80 is shown by a virtual line in order to make the drawing easier to see. Further, in FIG. 5, the stamp regulation lever retainer 110 is shown by a virtual line in order to make the drawing easier to see.
As shown in FIGS. 3 and 4, the switching mechanism 50 switches the torque transmission path of the winding stem 51. The switching mechanism 50 includes a winding stem 51, a squeeze wheel 52, a mandarin duck 60, a kanuki 70, a kanuki retainer 80, and a small iron lever 90.

As described above, the winding stem 51 is provided so as to be displaceable in the axis L direction with respect to the main plate 11 as the crown 4 (see FIG. 1) is pulled out. In the present embodiment, the winding stem 51 has a 0-step position that is most inserted inside the movement 10, a 1-step position in which the crown 4 is pulled by 1 step from the 0-step position, and a further pull of the crown 4 by 1 step from the 1-step position. It is positioned at three positions, which are two-stage positions. The winding stem 51 is formed with a constricted portion 51a that engages with the mandarin duck 60. The following description assumes a state in which the winding stem 51 is positioned at the 0-step position unless otherwise specified.

The winding wheel 53 is provided on the winding stem 51. The kit wheel 53 is provided at a position on the center side of the movement 10 with respect to the constricted portion 51a. In the present embodiment, the center of the movement 10 is the rotation center of the pointer, which is the rotation axis of the fourth wheel 24, the branch wheel 36, and the cylinder wheel 38. The kit wheel 53 is provided so as to be rotatable with respect to the winding stem 51 and non-displaceable in the axis L direction with respect to the winding stem 51. A round hole wheel 28 (see FIG. 2) included in the manual winding wheel train 14 is engaged with the kit wheel 53.

The connecting wheel 52 is extrapolated to the winding stem 51 and is arranged coaxially with the axis L. The squeeze wheel 52 is arranged closer to the center of the movement 10 than the squeeze wheel 53. The knob wheel 52 is provided so as to be integrally rotatable with the winding stem 51 and displaceable in the axis L direction with respect to the winding stem 51. The continuation wheel 52 is displaced with respect to the winding stem 51 in the L direction of the axis line, so that the wheel 52 meshes with the wheel 53 from the inside to the outside of the movement 10 and the movement 10 with respect to the small iron wheel 45. It is configured so that the state of meshing in the direction from the outside to the inside can be transferred to each other.

The mandarin duck 60 is rotatably provided with respect to the main plate 11 about the second axis O2. The mandarin duck 60 includes a mandarin duck shaft 61, which is a rotating shaft, and a mandarin duck body 62 supported by the mandarin duck shaft 61. The mandarin duck shaft 61 is arranged on the same side as the balance with hairspring 32 (see FIG. 2) with respect to the axis L in a plan view. The mandarin duck shaft 61 is arranged so as to penetrate the main plate 11.

The mandarin duck body 62 is arranged on the side (back side) opposite to the balance with hairspring 32 in the thickness direction of the main plate 11 with respect to the main plate 11. The mandarin duck body 62 is formed in a thin plate shape and extends along the surface direction of the main plate 11. The mandarin duck body 62 includes a head portion 63 and a tail portion 64 extending from a connection portion with the mandarin duck shaft 61. The head 63 is formed in an oval shape. The head 63 is arranged so as to overlap the axis L in a plan view. The head 63 is arranged at the constricted portion 51a of the winding stem 51. As a result, the mandarin duck 60 engages with the winding stem 51 in the axis L direction, and rotates with the displacement of the winding stem 51 due to the pull-out operation of the crown 4. Hereinafter, among the rotation directions of the mandarin duck 60, the rotation direction when the winding stem 51 is displaced from the 0-step position to the 2-step position is referred to as the first rotation direction M1, and on the contrary, the winding stem 51 is 2. The rotation direction when the displacement is performed from the step position to the 0 step position is referred to as a second rotation direction M2. The tail portion 64 extends from the connection portion with the mandarin duck shaft 61 to the side opposite to the head portion 63. An engaging convex portion 65 is formed on the tail portion 64. The engaging convex portion 65 is provided at an intermediate portion of the tail portion 64 in the extending direction. The engaging convex portion 65 projects in the first rotation direction M1 toward the axis L side in a plan view. The engaging convex portion 65 is formed so as to approach the axis L in a plan view when the mandarin duck 60 rotates in the first rotation direction M1.

The mandarin duck 60 includes a mandarin duck pin 66 and a small iron lever actuating pin 67. The mandarin duck pin 66 is arranged in the vicinity of the engaging convex portion 65 in the tail portion 64. The mandarin duck pin 66 projects from the tail portion 64 toward the opposite side (back side) of the main plate 11. The small iron lever actuating pin 67 is arranged near the tip of the tail 64. The small iron lever operating pin 67 projects from the tail portion 64 toward the main plate 11 side (front side). The small iron lever operating pin 67 is engaged with the small iron lever 90.

The Kannuki 70 is rotatably provided with respect to the main plate 11 about the third axis O3. The third axis O3 is arranged on the side opposite to the second axis O2 with the axis L sandwiched in a plan view. The Kannuki 70 includes a Kannuki main body 71 rotatably supported by a support shaft projecting from the main plate 11, and a Kannuki pin 72 fixed to the Kannuki main body 71. The Kannuki main body 71 is arranged on the same side as the mandarin duck main body 62 with respect to the main plate 11. The Kannuki main body 71 is formed in a thin plate shape and extends along the same plane as the mandarin duck main body 62. The Kannuki main body 71 is arranged side by side with the mandarin duck main body 62 in a plan view.

The Kannuki main body 71 includes a head 73 extending from a connection portion of the main plate 11 with a support shaft. The head 73 extends so as to straddle the winding stem 51 in a plan view. The tip of the head 73 faces the engaging convex portion 65 of the mandarin duck 60 from the first rotation direction M1. When the engaging convex portion 65 of the mandarin duck 60 is displaced in the first rotation direction M1, the head 73 is pressed by the engaging convex portion 65 and rotates toward the center side of the movement 10. As a result, the Kannuki 70 rotates with the rotation of the mandarin duck 60. That is, the Kannuki 70 rotates with the displacement of the winding stem 51 due to the pull-out operation of the crown 4. More specifically, the Kannuki 70 rotates when it is displaced between the 0-step position and the 1-step position of the winding stem. The Kannuki pin 72 projects from the Kannuki main body 71 toward the side opposite to the main plate 11. A spring for returning the spring 83, which will be described later, is in contact with the pin 72.

Here, the intermediate portion between the tip end and the base end of the head 73 of the Kannuki main body 71 is arranged at the constricted portion of the connecting wheel 52. As a result, the Kannuki 70 is engaged with the continuation wheel 52 in the axis L direction. When the head 73 is pressed against the engaging convex portion 65 of the mandarin duck 60, the Kannuki 70 displaces the squeeze wheel 52 in a direction away from the squeeze wheel 53. When the winding stem 51 is located at the 0-step position, the Kannuki 70 engages the squeeze wheel 52 with the squeeze wheel 53. When the winding stem is located in the region extending from the 1st step position to the 2nd step position, the Kannuki 70 engages the squeeze wheel 52 with the small iron wheel 45.

The Kannuki presser 80 presses the mandarin duck 60 and the Kannuki 70 toward the main plate 11. The punch retainer 80 is formed in a thin plate shape and extends along the surface direction of the main plate 11. The punching retainer 80 includes a base portion 81 fixed to the main plate 11, four arms 82A, 82B, 82C, 82D extending from the base portion 81, and a punching return spring 83 extending from the base portion 81. The base portion 81 is arranged on the side opposite to the main plate 11 with the kanuki main body 71 interposed therebetween. The base 81 is arranged on the side opposite to the mandarin duck body 62 with respect to the axis L in a plan view. The base portion 81 overlaps the connecting portion of the main body 71 with the support shaft of the main plate 11 in a plan view. The base 81 is arranged closer to the center of the movement 10 than the pin 72. The base 81 is fastened to the main plate 11 with two screws. The four arms 82A, 82B, 82C, and 82D each extend from the base 81 to the axis L side in a plan view.

The first arm 82A straddles the axis L in a plan view and overlaps the head 63 of the mandarin duck 60. The first arm 82A urges the vicinity of the connection portion of the mandarin duck body 62 with the mandarin duck shaft 61 toward the main plate 11. The second arm 82B extends from the base 81 at intervals with respect to the first arm 82A on the central side of the movement 10 with respect to the first arm 82A in a plan view. The second arm 82B faces the wheel 53 from the center side of the movement 10. As a result, the second arm 82B regulates the displacement of the wheel 53 toward the center of the movement 10.

The third arm 82C extends from the base 81 at intervals with respect to the second arm 82B on the central side of the movement 10 with respect to the second arm 82B in a plan view. The third arm 82C straddles the axis L in a plan view. The third arm 82C overlaps the head 73 of the mandarin duck 70 and the head 63 of the mandarin duck 60 in a plan view. The third arm 82C is formed so as to be flexible and deformable in the surface direction of the main plate 11. The tip of the third arm 82C is in contact with the mandarin duck pin 66 facing from the first rotation direction M1. As a result, the third arm 82C urges the mandarin duck 60 in the direction opposite to the moving direction of the mandarin duck 60 accompanying the pulling operation of the crown 4. Three engaging recesses 84a, 84b, 84c are formed side by side on the side surface of the tip of the third arm 82C facing the mandarin duck pin 66 (see FIG. 7). The three engaging recesses 84a, 84b, 84c are arranged in the order of the first engaging recess 84a, the second engaging recess 84b, and the third engaging recess 84c in the direction from the tip of the third arm 82C toward the base. .. A mandarin duck pin 66 engages with these engaging recesses 84a, 84b, 84c. A smooth first engaging ridge 85a (see FIG. 7) is formed between the first engaging recess 84a and the second engaging recess 84b. A smooth second engaging ridge 85b (see FIG. 7) is formed between the second engaging recess 84b and the third engaging recess 84c.

The fourth arm 82D extends from the base 81 at intervals with respect to the third arm 82C on the central side of the movement 10 with respect to the third arm 82C in a plan view. The fourth arm 82D straddles the axis L in a plan view. The fourth arm 82D overlaps the head 63 of the mandarin duck 60 in a plan view. At the tip of the fourth arm 82D, a through hole through which a pin projecting from the main plate 11 is inserted is formed. As a result, the tip of the fourth arm 82D is positioned in the surface direction of the main plate 11.

The repelling spring 83 extends from the base 81 with a substantially constant width. The repelling spring 83 extends from the base 81 so that the tip thereof is located between the base 81 and the repelling pin 72 in a plan view. The tip of the repelling spring 83 is in contact with the repelling pin 72 from the center side of the movement 10. The kanuki return spring 83 urges the kanuki 70 in a direction in which the head 73 of the kanuki 70 approaches the engaging convex portion 65 of the mandarin duck body 62.

The small iron lever 90 is arranged on the same side as the mandarin duck 60 with respect to the main plate 11. The small iron lever 90 is rotatably provided with respect to the main plate 11 about the fourth axis O4. The fourth axis O4 is orthogonal to the axis L on the outer side of the movement 10 with respect to the rotation axis of the fourth wheel 24. The small iron lever 90 rotates with the rotation of the mandarin duck 60. The small iron lever 90 includes a lever shaft 91 supported by a support shaft projecting from the main plate 11, and a lever body 92 supported by the lever shaft 91. The lever shaft 91 is formed in a cylindrical shape and is extrapolated to a support shaft of the main plate 11 so as to be relatively rotatable. A flange 91a projecting outward in the radial direction is formed on the outer peripheral surface of the lever shaft 91. The lever body 92 is formed in a thin plate shape. The lever body 92 includes a rotating portion 93 supported by the lever shaft 91, an engaging portion 94 engaged with the mandarin duck 60, and a connecting portion 95 connecting the rotating portion 93 and the engaging portion 94. ..

The rotating portion 93 extends along the surface direction of the main plate 11. The rotating portion 93 is arranged on the center side of the movement 10 with respect to the fourth arm 82D of the punching retainer 80 in a plan view, and is arranged on the same plane as the fourth arm 82D. The rotating portion 93 is formed with a through hole through which the lever shaft 91 is inserted. The rotating portion 93 overlaps the flange 91a of the lever shaft 91 from the main plate 11 side. The engaging portion 94 is arranged closer to the outside of the movement 10 than the rotating portion 93. The engaging portion 94 extends along the surface direction of the main plate 11 on the main plate 11 side of the rotating portion 93. The engaging portion 94 is arranged closer to the main plate 11 than the mandarin duck main body 62. The engaging portion 94 overlaps the mandarin duck body 62 in a plan view. The engaging portion 94 is arranged on the same side as the mandarin duck body 62 with respect to the axis L in a plan view. The connecting portion 95 extends from the rotating portion 93 toward the engaging portion 94 with a substantially constant width in a plan view. The connecting portion 95 intersects the fourth arm 82D of the punching retainer 80 in a plan view. The connecting portion 95 extends from the rotating portion 93 in parallel with the rotating portion 93, then bends toward the main plate 11 so as to avoid the fourth arm 82D, and extends in parallel with the engaging portion 94 to the engaging portion 94. You are connected. Hereinafter, among the rotation directions of the small iron lever 90, the direction in which the engaging portion 94 is separated from the axis L in a plan view is referred to as a third rotation direction M3, and the opposite direction is referred to as a fourth rotation direction M4.

The engaging portion 94 is formed with a mandarin duck engaging window 96 into which a small iron lever operating pin 67 of the mandarin duck 60 is inserted. The mandarin duck engagement window 96 extends with a substantially constant width larger than the outer diameter of the small iron lever operating pin 67 so as to be able to guide the small iron lever operating pin 67. The Oshidori engaging window 96 has a first extending portion 96a through which the small iron lever operating pin 67 passes when the winding rod 51 is displaced between the 0-step position and the 1-step position, and the winding stem 51 is in the 1-step position. It includes a second extending portion 96b and a third extending portion 96c through which the small iron lever actuating pin 67 passes when the position is displaced from the two-stage position. The first extending portion 96a extends in an arc shape along a direction parallel to the first rotation direction M1 and the second rotation direction M2 (that is, a circumferential direction around the second axis O2) in a plan view. The second extending portion 96b is connected to the end portion of the first extending portion 96a in the first rotation direction M1. The second extending portion 96b extends from the first extending portion 96a in the first rotation direction M1 and the fourth rotation direction M4. The third extending portion 96c is connected to the end portion of the second extending portion 96b in the first rotation direction M1. The third extending portion 96c extends from the second extending portion 96b in an arc shape along the first rotation direction M1.

The small iron lever 90 supports the small iron car 45, the Hinosato intermediate car 46, and the time adjustment notification car 47. The small iron wheel 45 is rotatably supported by the lever shaft 91. Therefore, the rotation axis of the small iron wheel 45 coincides with the fourth axis O4. The small iron wheel 45 is arranged between the rotating portion 93 of the lever body 92 and the main plate 11. The Hinosato intermediate wheel 46 is rotatably supported by the rotating portion 93. The first gear 46a in the middle of the back of the sun is arranged on the small iron wheel 45 side with respect to the rotating portion 93 in the thickness direction of the main plate 11. The sun-back intermediate second gear 46b is arranged on the side opposite to the sun-back intermediate first gear 46a with the rotating portion 93 in the thickness direction of the main plate 11. The sun-back intermediate first gear 46a and the sun-back intermediate second gear 46b are connected to each other via a rotation shaft penetrating the rotating portion 93 and rotate integrally. The time adjustment transmission wheel 47 is rotatably supported by the rotating portion 93. The time adjustment transmission wheel 47 is arranged on the back intermediate second gear 46b side of the rotating portion 93 in the thickness direction of the main plate 11.

FIG. 6 is a perspective view of a part of the movement according to the first embodiment as viewed from the front side. In FIG. 6, the lever base 101 and the spring body 102 of the balance with hairspring regulation lever 100 are shown by virtual lines, while the illustration of the balance with hairdressing lever presser 110 is omitted in order to make the drawing easier to see.
As shown in FIGS. 4 and 6, the small iron lever 90 includes a balance with hairspring adjusting lever actuating pin 97. The balance with working lever actuating pin 97 is arranged at the engaging portion 94. The balance with working lever actuating pin 97 projects from the engaging portion 94 toward the main plate 11. The balance control lever operating pin 97 is inserted into the through hole 11a formed in the main plate 11 and penetrates from the back side to the front side of the main plate 11. The through hole 11a of the main plate 11 is formed so as to avoid the balance with working lever actuating pin 97 which is displaced with the rotation of the small iron lever 90. The balance with hairspring adjustment lever actuating pin 97 engages with the balance with hairdressing adjustment lever 100 on the front side of the main plate 11.

As shown in FIGS. 4 and 5, the balance with hairspring adjusting lever 100 is arranged on the same side (front side) as the top plate 32 with respect to the base plate 11 in the thickness direction of the base plate 11. The balance withdrawal lever 100 is arranged so as to overlap the lever body 92 of the small iron lever 90 in a plan view. The balance control lever 100 is displaced as the small iron lever 90 rotates. The balance with hairspring lever 100 includes a lever base 101 and a spring body 102 whose base end is connected to the lever base 101. The lever base 101 is formed in a thin plate shape and extends along the surface direction of the main plate 11. The lever base 101 is formed with a through hole into which the balance lever operating pin 97 of the small iron lever 90 is inserted. The lever base 101 is engaged with the small iron lever 90 by inserting the balance with working lever actuating pin 97 into the through hole. The lever base 101 is rotatable with respect to the balance with reference lever actuating pin 97. In the present embodiment, the balance with hairspring adjusting lever actuating pin 97 slightly protrudes from the lever base 101 to the side opposite to the main plate 11.

The spring body 102 is formed in a thin plate shape. The spring body 102 is arranged so that both main surfaces face the surface direction of the main plate 11, and is formed so as to be flexible in the surface direction of the main plate 11. In the present embodiment, the spring body 102 is connected to the lever base 101 via the bent portion 103, and is integrally molded with the lever base 101. The spring body 102 extends from the connection portion with the lever base 101 along the third rotation direction M3. The spring body 102 extends linearly in a plan view. The spring body 102 is arranged between the balance sheet 32 and the fourth axis O4 in a plan view so as to overlap the rim portion 33a (see FIG. 2) of the balance sheet 33 of the balance sheet 32 when viewed from the surface direction of the main plate 11. There is.

The balance with hairspring lever 100 includes a guide pin 104 (guided portion) for the balance with hairdressing lever. The balance withdrawal lever guide pin 104 is arranged outside the balance control lever actuating pin 97 of the small iron lever 90 in the radial direction centered on the fourth axis O4. The balance control lever guide pin 104 is arranged in the third rotation direction M3 with respect to the balance control lever operating pin 97. The balance control lever guide pin 104 projects from the lever base 101 toward the main plate 11. In the present embodiment, the balance control lever guide pin 104 is inserted into a through hole formed in the lever base 101, and slightly protrudes from the lever base 101 to the side opposite to the main plate 11.

As shown in FIG. 6, the main plate 11 is formed with a regulation lever guide window 11b into which a balance regulation lever guide pin 104 is inserted. The regulation lever guide window 11b extends with a substantially constant width larger than the outer diameter of the balance lever guide pin 104 so as to be able to guide the balance lever guide pin 104. The regulation lever guide window 11b extends outward in the radial direction centered on the fourth axis O4 from the end of the fourth rotation direction M4 toward the third rotation direction M3, and then moves to the third rotation direction M3. It extends along.

As shown in FIGS. 4 and 5, the balance with hairspring adjusting lever 100 is held down on the side of the base plate 11 by the balance with hairdressing lever retainer 110 fixed to the base plate 11. The balance control lever retainer 110 is formed in a thin plate shape and extends along the surface direction of the main plate 11. The balance control lever retainer 110 is arranged so as to avoid the spring body 102 of the balance control lever 100, and overlaps the lever base 101 in a plan view. The balance control lever retainer 110 is formed with a first escape window 111 that avoids the balance control lever operating pin 97 and a second escape window 112 that avoids the balance control lever guide pin 104. The first escape window 111 is formed in a shape substantially matching the shape of the through hole 11a (see FIG. 6) of the main plate 11 in a plan view. The second escape window 112 is formed in a shape that substantially matches the shape of the regulation lever guide window 11b (see FIG. 6) of the main plate 11 in a plan view.

Next, the operation of the switching mechanism 50 will be described with reference to FIGS. 7 to 10.
7 to 10 are operation explanatory views of the balance with hairdressing mechanism according to the first embodiment.
As shown in FIG. 7, in the state where the winding stem 51 is located at the 0-step position, the mandarin duck pin 66 of the mandarin duck 60 is inserted into the first engaging recess 84a of the third arm 82C of the mandarin duck retainer 80. As a result, the winding stem 51 is positioned at the 0-step position. The head 73 of the Kannuki 70 holds the twitching wheel 52 so that the twitching wheel 52 meshes with the knitting wheel 53. Therefore, when the winding stem 51 at the 0-step position is rotated, the winding wheel 52 is integrally rotated with the winding stem 51, and the squeeze wheel 53 is further rotated via the winding wheel 52. Then, as the drive wheel 53 rotates, the round hole wheel 28 that meshes with the wheel wheel 53 rotates, and the square hole wheel 20b of the barrel assembly 20A rotates via the manual winding wheel train 14 (see FIG. 2). As a result, the royal fern of the barrel assemblies 20A and 20B is wound up. The first gear 46a in the middle of the back of the sun meshes with the first day correction transmission wheel 48. Further, the small iron lever operating pin 67 of the mandarin duck 60 is located at the end of the second rotation direction M2 in the first extending portion 96a of the mandarin duck engaging window 96 of the mandarin duck lever 90.

When the winding stem 51 is displaced from the 0-step position to the 1-step position, the mandarin duck 60 rotates in the first rotation direction M1. Then, as shown in FIG. 8, the mandarin duck pin 66 gets over the first engaging recess 85a from the first engaging recess 84a of the third arm 82C of the punch retainer 80 and enters the second engaging recess 84b. At this time, the restoring force of the third arm 82C of the mandarin duck holder 80 acts on the mandarin duck 60, and a click feeling is generated when the user pulls out the winding stem 51. When the mandarin duck 60 rotates in the first rotation direction M1, the head 73 of the mandarin duck 70 presses against the engaging convex portion 65 of the mandarin duck 60 while resisting the urging force of the mandarin duck return spring 83 acting on the mandarin duck pin 72. Then, it rotates toward the center side of the movement 10. As a result, the squeeze wheel 52 held by the head 73 of the kanuki 70 is separated from the squeeze wheel 53 and meshes with the small iron wheel 45. When the winding stem 51 reaches the first step position, the head 73 of the Kannuki 70 retracts from the rotation locus of the engaging convex portion 65 of the mandarin duck 60 to the center side of the movement 10.

Further, when the mandarin duck 60 rotates in the first rotation direction M1, the small iron lever operating pin 67 moves the first extending portion 96a of the mandarin duck engagement window 96 of the small iron lever 90 from the end of the second rotation direction M2. It moves to the end of the first rotation direction M1. Since the first extending portion 96a extends along a direction parallel to the first rotation direction M1, the mandarin duck 60 and the small iron lever 90 do not engage with each other, and the small iron lever 90 does not displace.
When the winding stem 51 is displaced from the 1st step position to the 0th step position, an operation opposite to the above-described operation is performed.

In the state where the winding stem 51 is located at the one-step position, the mandarin duck pin 66 is inserted into the second engaging recess 84b of the third arm 82C of the punch retainer 80. As a result, the winding stem 51 is positioned at the one-step position. The head 73 of the Kannuki 70 holds the knob wheel 52 so that the knob wheel 52 meshes with the small iron wheel 45. Therefore, when the winding stem 51 at the one-step position is rotated, the winding wheel 52 is integrally rotated with the winding stem 51, and the small iron wheel 45 is further rotated via the winding wheel 52. Then, as the small iron wheel 45 rotates, the date wheel 40 rotates via the calendar correction mechanism 18. As a result, the date wheel 40 can be rotated to correct the date. In the state where the winding stem 51 is located at the one-step position, the small iron lever operating pin 67 of the mandarin duck 60 is the end of the first rotation direction M1 in the first extending portion 96a of the mandarin duck engagement window 96 of the mandarin duck lever 90. It is located in the department.

When the winding stem 51 is displaced from the first step position to the second step position, the mandarin duck 60 rotates in the first rotation direction M1. Then, as shown in FIG. 9, the mandarin duck pin 66 gets over the second engaging recess 85b from the second engaging recess 84b of the third arm 82C of the punch retainer 80 and enters the third engaging recess 84c. At this time, the restoring force of the third arm 82C of the mandarin duck holder 80 acts on the mandarin duck 60, and a click feeling is generated when the user pulls out the winding stem 51. The Kannuki 70 maintains a state in which the knob wheel 52 is held so that the knob wheel 52 meshes with the small iron wheel 45.

Further, when the mandarin duck 60 rotates in the first rotation direction M1, the small iron lever operating pin 67 moves the second extending portion 96b of the mandarin duck engagement window 96 of the small iron lever 90 from the end of the second rotation direction M2. It moves to the end of the first rotation direction M1. Since the second extending portion 96b extends from the end of the second rotation direction M2 to the first rotation direction M1 and the fourth rotation direction M4, the small iron lever 90 is subjected to the third rotation by the small iron lever operating pin 67. It is pressed by the moving direction M3 and rotates in the third rotation direction M3. At this time, the small iron lever 90 separates the first gear 46a on the back of the day from the first day correction transmission wheel 48, and brings the time correction transmission wheel 47 closer to the back wheel 37 of the day. When the winding stem 51 reaches the second stage position, the time correction transmission wheel 47 meshes with the back wheel 37 of the sun.

When the small iron lever actuating pin 67 finishes passing through the second extending portion 96b of the mandarin duck engaging window 96 as it rotates in the first rotation direction M1 of the mandarin duck 60, the third extending portion 96c is passed through the third extending portion 96c. It moves from the end of the moving direction M2 to the end of the first rotation direction M1. Since the third extending portion 96c extends along a direction parallel to the first rotation direction M1, the mandarin duck 60 and the small iron lever 90 do not engage with each other, and the small iron lever 90 does not rotate.
When the winding stem 51 is displaced from the two-step position to the one-step position, an operation opposite to the above-described operation is performed.

As shown in FIG. 10, in the state where the winding stem 51 is located at the two-stage position, the mandarin duck pin 66 is inserted into the third engaging recess 84c of the third arm 82C of the punch retainer 80. As a result, the winding stem 51 is positioned at the two-stage position. The small iron lever operating pin 67 of the mandarin duck 60 is located at the end of the first rotation direction M1 in the third extending portion 96c of the mandarin duck engaging window 96 of the mandarin duck lever 90. The head 73 of the Kannuki 70 holds the knob wheel 52 so that the knob wheel 52 meshes with the small iron wheel 45. Therefore, when the winding stem 51 at the two-stage position is rotated, the winding wheel 52 is integrally rotated with the winding stem 51, and the small iron wheel 45 is further rotated via the winding wheel 52. Since the time correction transmission wheel 47 meshes with the back wheel 37 of the day, the rotation of the small iron wheel 45 causes the back wheel 37, the minute wheel 36, and the cylinder wheel 38 of the day to rotate via the time adjustment wheel train 17. do. As a result, the time correction train wheel 17 can transmit the rotation of the winding stem 51 to the hour hand 5 and the minute hand 6 to correct the hour and minute indicated by the hour hand 5 and the minute hand 6.

Subsequently, the operation of the balance control lever 100 will be described.
The balance with hairspring lever 100 is displaced between the control position in which the balance with hairspring 51 is in contact with the balance with hairspring 32 and the balance with respect to the balance with hairspring 32 and the retracted position away from the balance with hairspring 32. The regulation position corresponds to the two-stage position of the winding stem 51. The retracted position corresponds to the 1st step position and the 0th step position of the winding stem 51, and the position between the 1st step position and the 0th step position. The specific operation of the balance with hairdressing lever 100 will be described below.

As shown in FIG. 8, the balance lever guide pin 104 of the balance lever 100 has the end of the fourth rotation direction M4 in the regulation lever guide window 11b of the main plate 11 with the winding stem 51 at the one-step position. Is located in. In this state, the balance control lever 100 is located at the retracted position.

As shown in FIG. 9, when the winding stem 51 is pulled out from the first step position to the second step position, the small iron lever 90 rotates in the third rotation direction M3. When the small iron lever 90 rotates in the third rotation direction M3, a force in the third rotation direction M3 acts on the balance with hairspring lever 100 via the balance with hairspring adjustment lever operating pin 97 of the small iron lever 90. As a result, the balance withdrawal lever 100 starts to be displaced from the retracted position toward the settled position. The balance lever guide pin 104 of the balance lever 100 is guided by the regulation lever guide window 11b of the main plate 11 and is displaced so as to be separated from the fourth axis O4, and then the third rotation direction M3, that is, the balance lever. It is displaced along the displacement direction of the operating pin 97.

When the balance control lever guide pin 104 is displaced so as to be separated from the fourth axis O4, the balance control lever guide pin 104 moves non-parallel to the balance control lever operating pin 97. As a result, the balance with hairspring lever 100 is displaced while the spring body 102 is rotated in the direction away from the fourth axis O4. Then, the spring body 102 of the balance with hairspring lever 100 comes into contact with the outer peripheral surface of the rim portion 33a of the balance wheel 33 of the balance with hairspring 32 from the outside in the radial direction, and the rim portion 33a of the balance with hair shaft 33 is brought into contact with the rim portion 33a in the radial direction with bending deformation. Press inward.

After that, the balance with hairspring adjustment lever guide pin 104 moves in parallel with the work with the balance with hairdressing lever actuating pin 97 when displaced along the third rotation direction M3. As a result, the balance with hairspring lever 100 moves in parallel along the third rotation direction M3. At this time, the spring body 102 of the balance with hairspring lever 100 is displaced along the direction orthogonal to the extending direction of the straight line passing through the contact point between the balance wheel 33 and the spring body 102 and the first axis O1 in a plan view. do. As a result, the balance with hairspring lever 100 rotates the balance wheel 33 with frictional force. However, the moving direction of the balance with hairdressing lever guide pin 104 does not have to be completely parallel to the moving direction of the balance with hairdressing lever operating pin 97.

The spring body 102 of the balance with hairspring lever 100 may be displaced while being closer to the rim portion 33a of the balance with hairspring 33 when the above-mentioned balance with hairdressing lever 100 is translated. In this case, the spring body 102 may come into contact with the balance wheel 33 for the first time when the balance control lever 100 is translated.

Then, as shown in FIG. 10, when the winding stem 51 reaches the second stage position, the small iron lever 90 finishes rotating in the third rotation direction M3. Further, the balance withdrawal lever 100 reaches the regulation position. When the balance with hairspring adjustment lever 100 reaches the control position, the spring body 102 of the balance with hairdressing lever 100 comes into contact with the balance wheel 33 of the balance with hairspring 32 and stops the operation of the balance with hairspring 32. Therefore, the transmission of torque from the fourth wheel 24 to the escape governor 13 via the escape intermediate wheel 25 is restricted, and the rotation of the second hand 7 attached to the fourth wheel 24 is stopped.

The balance withdrawal lever guide pin 104 is located at the end of the third rotation direction M3 in the regulation lever guide window 11b of the main plate 11 with the winding stem 51 at the two-step position. When the winding stem 51 is pushed from the second step position to the first step position, the small iron lever 90 rotates in the fourth rotation direction M4. When the small iron lever 90 rotates in the fourth rotation direction M4, a force in the fourth rotation direction M4 acts on the balance with hairspring lever 100 via the balance with hairdressing lever actuating pin 97. As a result, the balance withdrawal lever 100 starts to be displaced from the control position toward the retracted position. The balance control lever guide pin 104 is guided by the regulation lever guide window 11b of the main plate 11 and is displaced along the displacement direction of the fourth direction M4, that is, the balance control lever operating pin 97, and then approaches the fourth axis O4. Displace like.

The balance with hairspring lever guide pin 104 moves in parallel with the work with the balance with hairdressing lever actuating pin 97 when displaced along the fourth direction M4. At this time, the spring body 102 of the balance with hairspring lever 100 moves in parallel while being in contact with the balance wheel 33, and rotates the balance wheel 33 by frictional force. However, the moving direction of the balance with hairdressing lever guide pin 104 does not have to be completely parallel to the moving direction of the balance with hairdressing lever operating pin 97. As a result, torque is applied to the stopped balance with hairspring 32, and the escape governor 13 is restarted. After that, when the balance with hairspring regulation lever 100 is displaced so that the balance with hairspring regulation lever guide pin 104 approaches the fourth axis line O4, the spring body 102 is displaced while rotating in the direction in which the spring body 102 approaches the fourth axis line O4. Then, the spring body 102 of the balance with hairspring lever 100 is separated from the balance wheel 33 of the balance with hairspring 32 while eliminating the bending deformation, and the restart of the escape governor 13 is completed.

The timing at which the spring body 102 of the balance with hairspring lever 100 contacts or separates from the balance wheel 33 is preferably the timing before the winding stem 51 leaves the 1st step position and reaches the 2nd step position, and the mandarin duck pin 66 is pressed down. It is more desirable that the timing coincides with the timing of contacting the apex of the second engaging peak portion 85b of the third arm 82C of 80. As a result, when the user displaces the winding stem 51 from the 0-step position to the 1-step position, even if the winding stem 51 exceeds the 1-step position, the balance with hairdressing lever 100 comes into contact with the balance wheel 33 and the balance with hairspring 32. It is possible to prevent the operation of the above from being stopped. Further, even if the user mistakenly pushes the winding stem 51 toward the 1st step position when rotating the winding stem 51 at the 2nd step position, the balance with hairspring adjusting lever 100 is separated from the balance wheel 33 and the balance with hairspring 32 operates. Can be suppressed from being restarted.

As described above, the balance sheet adjusting mechanism 19 of the present embodiment has a regulation position that engages with the small iron lever 90 and comes into contact with the balance sheet 32 as the small iron lever 90 rotates, and a retracted position that separates from the balance sheet 32. A balance lever 100 is provided so as to be displaceable between the levers. According to this configuration, the balance with hairspring adjusting lever 100 in contact with the balance with hairspring 32 is provided as a separate member from the small iron lever 90. Therefore, the balance with hairspring adjusting lever 100 can be brought into contact with and separated from the workforce 32 with a movement different from that of the small iron lever 90. Therefore, when the regulation of the balance with hairspring 32 is released, it becomes easy to displace the balance with hairspring regulation lever 100 so as to give motion to the balance with hairspring 32. Therefore, the operation of the balance with hairspring 32 can be restarted smoothly.

The balance with the balance lever guide pin 104 is guided by the adjustment lever guide window 11b of the main plate 11 when the balance with the balance lever 100 is displaced from the regulation position toward the retracted position while being in contact with the balance with the balance with the balance with the balance with the balance with the balance lever 100. The balance with the small iron lever 90 is displaced along the displacement direction of the balance lever operating pin 97. As a result, the balance with hairdressing lever 100 can be moved substantially in parallel while the balance with hairdressing lever 100 is in contact with the balance with hairspring 32. In the configuration in which the temporary balance lever is provided on the small iron lever, the balance control lever operates only by swinging around a predetermined axis. For this reason, it is difficult to displace the balance with hairspring in the direction in which the balance with hairspring is sufficiently pressed against the balance with frictional force. According to the present embodiment, when the balance with hairspring adjusting lever 100 is displaced from the regulation position toward the retracted position, the balance with hairspring 32 is rotated so as to follow the displacement of the balance with hairdressing lever 100 to give motion to the balance with hairspring 32. be able to. Therefore, the operation of the balance with hairspring 32 can be restarted smoothly.

The balance with hairspring adjusting lever 100 is arranged on the same side as the top plate 32 in the thickness direction of the base plate 11 with respect to the base plate 11. The lever body 92 of the small iron lever 90 is arranged on the side opposite to the balance with hairspring regulation lever 100 in the thickness direction of the main plate 11 with respect to the main plate 11. If the entire Kotetsu lever is arranged on the same side as the balance with hairspring regulation lever in the thickness direction with respect to the main plate, the arrangement of the front wheel train that transmits power to the balance with hairspring is restricted by the Kotetsu lever. According to the present embodiment, since the small iron lever 90 is arranged on the side opposite to the front wheel train 12 with respect to the main plate 11, the basic performance of the movement 10 is lowered due to the lower degree of freedom of placement of the front wheel train 12 (for example). , Deterioration of duration, deterioration of accuracy, etc.) can be suppressed.

In a state where the winding stem 51 is located at the second stage position and the balance with hairspring lever 100 is located at the regulation position, the small iron lever operating pin 67 of the mandarin duck 60 is the third extending portion 96c of the mandarin duck engaging window 96 of the mandarin duck lever 90. It is located at the end of the first rotation direction M1. Since the third extending portion 96c of the Oshidori engaging window 96 extends from the end of the first rotation direction M1 to the second rotation direction M2, the winding stem 51 is displaced from the second step position to the first step position. Initially, the small iron lever actuating pin 67 does not engage the displacement engagement window 96. Therefore, even if the winding stem 51 located at the two-stage position is slightly displaced toward the one-stage position, the small iron lever 90 and the balance with hairspring lever 100 engaged with the small iron lever 90 are not displaced. Therefore, even if the winding stem 51 is displaced due to an erroneous operation or the like while the balance with hairspring 32 is regulated, it is possible to suppress the operation of the balance with hairspring 32 from being unintentionally restarted.

Since the movement 10 and the clock 1 of the present embodiment include the above-mentioned balance with hairdressing mechanism 19, the operation of the balance with hairspring 32 can be restarted smoothly.

[Second Embodiment]
FIG. 11 is a perspective view of the balance with hairdressing mechanism according to the second embodiment as viewed from the front side.
In the first embodiment, the spring body 102 of the balance with hairspring lever 100 comes into contact with the rim portion 33a of the balance wheel 33 of the balance with hairspring 32 from the outside in the radial direction. On the other hand, the second embodiment is different from the first embodiment in that the spring body 102A of the balance with hairspring lever 100A comes into contact with the rim portion 33a of the balance wheel 33 of the balance with hairspring 32 from the axial direction of the balance with hairspring 32. The configuration other than that described below is the same as that of the first embodiment.

As shown in FIG. 11, the balance control lever 100A includes a spring body 102A instead of the spring body 102 of the first embodiment. The spring body 102A is formed in a thin plate shape and is connected to the lever base 101 (see FIG. 5). In this embodiment, the spring body 102A is integrally molded with the lever base 101. The spring body 102A extends linearly from the connection portion with the lever base 101 as a whole in a plan view. The spring body 102A is arranged between the balance with hairspring 32 and the fourth axis O4 in a plan view.

FIG. 12 is a diagram showing a part of a cross section taken along line XII-XII of FIG.
As shown in FIG. 12, the spring body 102A has a base end portion 105 connected to the lever base portion 101 and extending along the surface direction of the base plate 11, and from the base plate 11 in the thickness direction of the base plate 11 from the tip of the base end portion 105. A step portion 106 extending to a separated side (front side) and a balance with hairspring regulating portion 107 extending from the tip of the step portion 106 along the surface direction of the main plate 11 are provided. The spring body 102A is arranged closer to the main plate 11 than the rim portion 33a of the balance wheel 33 of the balance with hairspring 32 when viewed from the surface direction of the main plate 11.

The main plate 11 is formed with a sliding contact surface 11c with which the base end portion 105 of the spring body 102A of the balance with hairspring regulation lever 100A is in sliding contact, and a stepped surface 11d facing the stepped portion 106 of the spring body 102A of the balance with hairspring adjusting lever 100A. ing. The sliding contact surface 11c extends along the surface direction of the main plate 11. The stepped surface 11d extends inclined to the front side from the sliding contact surface 11c, and faces the inclined direction with respect to the thickness direction of the main plate 11. In the present embodiment, the stepped surface 11d faces the thickness direction of the main plate 11 and the front side. The stepped surface 11d is formed with an inclination angle smaller than that of the stepped portion 106 of the spring body 102A with respect to the surface direction of the main plate 11. The stepped surface 11d is arranged so as to overlap the balance sheet regulation portion 107 of the spring body 102A in a plan view (see FIG. 11). The height of the stepped surface 11d is lower than the height of the stepped portion 106 of the spring body 102A.

Next, the operation of the balance sheet adjusting lever 100A of the present embodiment will be described with reference to FIGS. 13 to 15. The operations of the mandarin duck 60, the cannuki 70, and the small iron lever 90 are the same as those in the first embodiment. Further, the operation of the lever base 101 of the balance control lever 100A is the same as that of the first embodiment.

13 to 15 are operation explanatory views of the balance with hairdressing mechanism according to the second embodiment.
As shown in FIG. 13, the balance with hairspring lever 100A is located at the retracted position when the winding stem 51 is located at the one-step position. Specifically, the spring body 102A is located between the balance with hairspring 32 and the fourth axis O4 in a plan view.

As shown in FIGS. 11 and 14, when the winding stem 51 is pulled out from the first step position to the second step position, the balance with hairspring setting lever 100A rotates so that the spring body 102A is separated from the fourth axis line O4. .. At this time, the stepped portion 106 of the spring body 102A maintains a state of being separated from the stepped surface 11d of the main plate 11, and the base end portion 105 of the spring body 102A slides on the sliding contact surface 11c of the main plate 11. Then, the balance regulation portion 107 of the spring body 102A is displaced to a position where it overlaps with the rim portion 33a of the balance wheel 33 in a plan view.

After that, as shown in FIGS. 11 and 15, when the balance with hairspring adjusting lever 100A moves in parallel along the third rotation direction M3, the lower end edge of the stepped portion 106 of the spring body 102A slides into contact with the stepped surface 11d of the main plate 11. And get on. As a result, the spring body 102A is guided to the front side by the stepped surface 11d, displaces the balance sheet regulation portion 107 to the front side while bending the base end portion 105, and brings the balance sheet regulation portion 107 into contact with the rim portion 33a of the balance wheel 33. .. At this time, the balance sheet regulation unit 107 rotates the balance wheel 33 by frictional force. Then, when the winding stem 51 reaches the second stage position and the balance with hairspring adjusting lever 100A stops, the spring body 102A comes into contact with the balance wheel 33 and stops the operation of the balance with hairspring 32.

When the winding stem 51 is pushed from the second step position to the first step position, the spring body 102A of the balance with hairspring lever 100A moves in parallel while contacting the balance wheel 33, and rotates the balance wheel 33 by frictional force. As a result, torque is applied to the stopped balance with hairspring 32, and the escape governor 13 is restarted. After that, when the balance control lever 100A is displaced toward the retracted position, the spring body 102A is separated from the balance wheel 33 while eliminating the bending of the base end portion 105, and the restart of the escape governor 13 is completed.

As described above, the balance control mechanism 19 of the present embodiment exerts the following effects in addition to the same effects as those of the first embodiment.

In the process of displacing the balance with hairspring lever 100A from the retracted position to the contact position, the balance with hairspring adjustment lever 100A slides into contact with the step of the main plate 11 and is guided to the front side, and comes into contact with the balance with hairspring 32 from the back side. According to this configuration, since the locus of the balance with hairdressing lever 100A during operation overlaps with the balance with hairspring 32 when viewed from the thickness direction of the main plate 11, it is possible to improve the degree of freedom in arranging the parts around the balance with hairdressing lever 100A. .. Further, since the balance with hairdressing lever 100A is guided to the front side by the step of the main plate 11, a structure capable of displacementing the balance with hairdressing lever 100A in the thickness direction of the main plate 11 can be obtained without providing a new separate part.

In the present embodiment, the lower end edge of the step portion 106 of the spring body 102A is brought into sliding contact with the step surface 11d of the main plate 11 to guide the spring body 102A in the thickness direction of the main plate 11. However, the configuration for guiding the spring body in the thickness direction of the main plate is not limited to this. For example, the stepped surface of the main plate is formed with an inclination angle larger than that of the stepped portion 106 of the spring body 102A with respect to the surface direction of the main plate 11, so that the lower surface of the stepped portion 106 of the spring body 102A is in sliding contact with the upper end edge of the stepped surface. It may be configured in. Further, the tip of the spring body may be slidably contacted with the stepped surface of the main plate to guide the tip of the spring body in the thickness direction of the main plate.

The present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope thereof.
For example, in the above embodiment, the small iron lever 90 supports the small iron wheel 45, but the small iron wheel may be directly supported by a support shaft projecting from the main plate. That is, the small iron lever may be a lever member that supports at least a part of the gears of the time adjustment train wheel.

Further, in the above embodiment, the balance lever guide pin 104 of the balance control lever 100 is guided to the regulation lever guide window 11b of the main plate 11, but the pin is provided on the main plate and the pin of the main plate is inserted into the balance plate regulation lever. The guide window (guided portion) to be guided may be formed.

In addition, it is possible to replace the components in the above-described embodiments with well-known components as appropriate without departing from the spirit of the present invention, and the above-described embodiments may be combined as appropriate.

1 ... Clock 10 ... Movement (movement for clock) 11 ... Main plate 19 ... Tempu regulation mechanism 45 ... Small iron car (transmission car) 46 ... Hinosato intermediate car (transmission car) 47 ... Time adjustment transmission car (transmission car) 51 ... Makishin 60 ... Oshidori 90 ... Kotetsu lever 100, 100A ... Temp regulation lever 104 ... Temp regulation lever Guide pin (guided part)

In the above-mentioned balance plate adjusting mechanism, the adjusting lever slides in contact with a step of the main plate in the process of being displaced from the retracted position to the adjusting position, and is guided in the thickness direction of the main plate, and is guided to the balance in the thickness direction of the main plate. You may contact from.

Claims (6)

Makishin supported by the main plate and
A mandarin duck that rotates with respect to the main plate as the winding stem is displaced in the axial direction.
A small iron lever that engages with the mandarin duck and rotates with the rotation of the mandarin duck.
A transmission wheel that is supported by the small iron lever and transmits the rotation of the winding stem to the pointer when the small iron lever is located at a predetermined position.
A regulation lever that is displaceable between a regulation position that engages with the small iron lever and comes into contact with the balance with the rotation of the small iron lever and a retracting position that separates from the balance.
Tempu regulation mechanism equipped with. The regulation lever has a guided portion guided by the main plate, and is rotatably provided with respect to the small iron lever at an engaging portion with the small iron lever.
The guided portion is guided by the main plate when the regulation lever is displaced from the regulation position toward the retracted position while being in contact with the balance plate, and the engaging portion between the regulation lever and the small iron lever. Displace along the displacement direction,
The balance control mechanism according to claim 1. The regulation lever is arranged on the same side as the balance with respect to the main plate in the thickness direction of the main plate.
At least a part of the small iron lever is arranged on the side opposite to the regulation lever in the thickness direction with respect to the main plate.
The balance control mechanism according to claim 1 or 2. In the process of displacement from the retracted position to the regulated position, the regulation lever is slidably contacted with a step of the main plate and guided in the thickness direction, and comes into contact with the balance with respect to the balance.
The balance control mechanism according to any one of claims 1 to 3. The balance control mechanism according to any one of claims 1 to 4.
With the main plate
A balance rotatably supported on the main plate,
A watch movement with. A timepiece comprising the timepiece movement according to claim 5.

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