JP6954747B2 - Train wheel regulation mechanism, movement and mechanical watches - Google Patents

Description

The present invention relates to a train wheel regulation mechanism, a movement and a mechanical timepiece.

In general, a mechanical timepiece includes a barrel wheel, a second wheel, a third wheel, and a fourth wheel that form a front wheel train, and an escapement and a speed governor for controlling the rotation of each of these wheels. ing. The escapement is equipped with an escape wheel and an ankle, and the ankle that receives the rotational force of the escape wheel transmits the force to the speed governor. The governor consists of a balance spring and a balance spring. The balance wheel vibrates at regular intervals due to the force from the ankle and the spring force of the balance spring.

Here, in the balance sheet, an error occurs in the step accuracy depending on the direction in which gravity is applied. Therefore, a so-called tourbillon mechanism is known as a mechanism for reducing the influence of the balance on gravity. The tourbillon mechanism is configured to arrange a governor and an escapement in one carriage and rotate the carriage at regular intervals. Thereby, the error of the step accuracy caused by gravity can be averaged.

Further, the mechanical timepiece is provided with a second hand setting (stop second) mechanism used for adjusting the time. This second hand setting mechanism has a setting lever and the like. Then, the regulation lever is operated to regulate the balance and stop the movement of the train wheel.
Here, in a mechanical timepiece having a tourbillon mechanism, the carriage rotates with respect to the main plate, and the balance wheel is arranged in the carriage. Therefore, when the regulation lever or the like is brought into contact with the carriage, the carriage is contacted. It will be hindered. For this reason, various techniques for stopping the vibration of the balance with hairspring even in a mechanical timepiece having a tourbillon mechanism are disclosed.

For example, some are equipped with a stopper having a double arm spring. The double arm spring is formed in a substantially V shape so as to be directed in the circumferential direction of the contour of the balance with respect to the circumferential direction, and is provided so as to be swingable from the normal position to the lock position. At the locked position, at least one of the two tips of the double arm spring is always in contact with the contour of the balance (see, for example, Patent Document 1).

Further, there is a case in which a lever that can come into contact with the pump is provided in the carriage so that the lever can be pressed from the outside of the carriage (see, for example, Patent Document 2). According to this, by pressing the lever, the lever comes into contact with the balance and the balance is regulated.

Further, there are two stop levers that can come into contact with the balance with each other so as to be swingably supported via a spiral spring (see, for example, Patent Document 3). According to this, even if one of the two stop levers comes into contact with the carriage, the other stop lever comes into contact with the balance wheel. Even if one of the stop levers comes into contact with the carriage, the spiral spring is deformed and the displacement amount of the stop lever that does not reach the balance can be absorbed.

Further, as a mechanism for regulating the balance, there is a mechanism provided with a stop member that is firmly fixed to the carriage so as to rotate with the carriage and that contacts the balance to regulate the balance, and a device that operates the stop member. The stop member is in the form of a disk coaxial with the carriage at which the pillars intersect and has an outer peripheral surface located beyond the pillars in the radial direction. The actuating device comprises at least one actuating member, which, in cooperation with the outer peripheral surface, moves the disc along the axis of the carriage and regulates the balance with friction between the disc and the balance (eg,). , Patent Document 4).

Further, there is one provided with a braking element provided on the rotary carriage (see, for example, Patent Document 5). According to this, the braking element can be engaged with the balance with the balance and is movable in the axial direction with respect to the balance with respect to the balance.

Special Table 2005-512605 Japanese Unexamined Patent Publication No. 2006-30190 Japanese Patent Application Laid-Open No. 2015-526737 Japanese Unexamined Patent Publication No. 2014-202750 Japanese Patent No. 5722487

By the way, when the regulation position of the balance wheel was near the dead center position, the amount of winding of the hairspring was small, and the friction between the escape wheel and the claw stone of the ankle was large due to deterioration of oil, etc. In that case, there was a possibility that the balance spring would not restart even if the balance spring was released. In particular, the tourbillon mechanism has a large frictional force due to the weight of the carriage, and is harder to restart than a normal balance wheel.
In addition, since an object (stop lever, etc.) is brought into direct contact with the balance with hairspring, the shaft supporting the balance with the balance with hairspring may be damaged.

Therefore, the present invention has been made in view of the above-mentioned circumstances, and it is possible to smoothly restart the train wheel when the regulation of the train wheel including the balance wheel is released, and the balance sheet and the balance sheet are supported by the axle. It provides a train wheel regulation mechanism, a movement and a mechanical timepiece that can prevent damage to the shaft.

In order to solve the above problems, the train wheel regulation mechanism according to the present invention includes a link mechanism that operates in conjunction with the winding stem, a regulation plate that constitutes the train wheel and rotates around the rotation axis, and the link mechanism. It is provided with a regulation portion which is connected to and is provided so as to be detachable from the regulation plate by performing a rotary motion, and the contact / separation direction of the regulation portion with respect to the regulation plate is the rotation axis and the rotation. It is set in a direction that intersects each of the straight lines connecting the axis line and the contact point between the regulation portion of the regulation plate and the regulation portion. The regulation portion is a spring member extending in an arc shape, and the spring member is The base end portion of the spring member opposite to the tip end portion on the side close to the regulation plate is supported by the spring support, and the support is centered on a rotation shaft provided on the support. Is rotatably provided and is connected to the link mechanism via a connecting shaft provided at a position different from the rotating shaft. When the distance between the axis and the axis is L1 and the distance between the axis of the rotating shaft and the tip of the spring member is L2, the distance L1 and the distance L2 are L2> L1. It is characterized in that it is set to satisfy.

With this configuration, the train wheel can be regulated by bringing the regulation portion into contact with the regulation plate without directly contacting the regulation portion with the balance sheet. Therefore, it is possible to prevent damage to the balance sheet and the shaft that supports the balance sheet.
Further, the regulation portion is set so that the contact / separation direction intersects each of the rotation axis and the straight line connecting the rotation axis and the contact point between the regulation portion of the regulation plate. Therefore, when the regulation portion is separated from the regulation plate, the frictional force generated between the regulation plate and the regulation portion acts in the direction of rotating the regulation plate. When the rotational force acts on the regulation plate, the rotational force is applied to the gears and balances that make up the train wheel. For this reason, the regulation position of the balance spring is near the dead center position, the amount of winding of the hairspring is small, or the friction between the escape wheel and the claw stone of the ankle is large due to deterioration of oil or the like. However, the train wheel can be restarted smoothly.
In addition, the space occupied by the regulation portion can be saved, and the rotational force of the regulation plate can be efficiently applied.
Further, it is not necessary to separately provide a configuration for operating the regulation portion, and the regulation portion can be operated by using the existing winding stem. Therefore, the number of parts of the train wheel regulation mechanism can be reduced, and the size and weight can be reduced. In addition, the cost of parts can be reduced, the configuration of the train wheel regulation mechanism can be simplified, and the operation of the train wheel regulation mechanism can be stabilized.
Further, the movable area of the spring member can be made larger than the movable area of the link mechanism. Therefore, the spring member can be reliably approached and separated from the regulation plate with a slight operation of the link mechanism.

In the train wheel regulation mechanism according to the present invention, the regulation plate is provided on one of a plurality of rotating bodies constituting the train wheel, and has a circular outer peripheral surface having a center on the rotation axis of the rotating body and a circular outer peripheral surface. It has at least one of the inner peripheral surfaces, and the regulation portion is provided so as to be movable along the tangential direction of either the outer peripheral surface or the inner peripheral surface of the regulation plate. do.

With this configuration, when the regulation portion is separated from the regulation plate, the frictional force generated between the regulation plate and the regulation portion acts in the tangential direction of the regulation plate. Therefore, the rotational force can be reliably and efficiently applied to the regulation plate.

In the train wheel regulation mechanism according to the present invention, the regulation plate is a gear.

In this way, by equipping the gear with the two functions of the train wheel drive transmission function and the regulation plate function, the number of parts can be reduced, the manufacturing cost can be reduced, and the train wheel regulation mechanism is provided. The mechanical watch can be miniaturized.

Characterized in train regulating mechanism according to the present invention, the tip portion of the side close to the regulating plates before Symbol spring member, that the bent portion that is bent in a direction away from said regulating plate is provided And.

With this configuration, the spring member can be smoothly brought into contact with the regulation plate. Therefore, the impact when the spring member comes into contact with the regulation plate can be minimized.

The train wheel regulation mechanism according to the present invention is characterized in that it includes a rotatably provided carriage, the carriage is rotatably provided, and the regulation plate is fixed to the carriage. ..

With this configuration, in the so-called tourbillon mechanism having a carriage, the balance can be restarted smoothly when the regulation of the balance is released, and the balance can be prevented from being damaged.

The train wheel regulation mechanism according to the present invention is characterized in that the regulation plate and the regulation portion are provided with a rough surface portion having a rougher surface roughness than other portions at a contact portion with each other.

With this configuration, the frictional resistance when the regulation plate and the regulation portion come into contact with each other can be increased. Therefore, the regulation plate can be reliably stopped by the regulation portion. Further, when the regulation portion is separated from the regulation plate, a sufficient rotational force can be applied to the regulation plate.

In the train wheel regulation mechanism according to the present invention, the rough surface portion is formed so that the resistance in the direction in which the regulation portion is separated from the regulation plate is larger than the resistance in the direction in which the regulation portion abuts on the regulation plate. It is characterized by being.

With this configuration, the regulation plate can be smoothly stopped by the regulation portion. Further, when the regulation portion is separated from the regulation plate, the rotational force can be reliably applied by the regulation plate.

In the train wheel regulation mechanism according to the present invention, the rough surface portion is a ratchet tooth and a ratchet claw, the ratchet tooth is formed on the regulation plate, and the ratchet claw that can engage with the ratchet tooth is formed on the regulation portion. It is characterized in that it is formed.

With this configuration, the rough surface portion can be easily configured so that the resistance in the direction in which the regulation portion is separated from the regulation plate is larger than the resistance in the direction in which the regulation portion is in contact with the regulation plate.

The train wheel regulation mechanism according to the present invention is characterized in that the regulation portion abuts on one of the outer peripheral surface and the inner peripheral surface of the regulation plate.

With this configuration, the pressing force of the regulation portion with respect to the regulation plate can be applied in the radial direction of the regulation plate. Therefore, for example, when the regulation portion is a spring member, it is possible to easily control the amount of deflection of the spring member. That is, regardless of the posture of the mechanical timepiece, the pressing force of the regulation portion with respect to the regulation plate can be stabilized. Therefore, the regulation plate can be reliably regulated by the regulation portion, and the train wheel can be restarted more smoothly.

The movement according to the present invention is characterized by including the train wheel regulation mechanism according to any one of the above, the wheel train, and a main plate that supports the wheel train.

With this configuration, the train wheel can be restarted smoothly when the regulation of the train wheel including the balance wheel is released, and a movement that can prevent damage to the shaft supporting the balance sheet and the balance sheet is provided. can.

The mechanical timepiece according to the present invention is characterized by having the movement described above.

With this configuration, the train wheel can be restarted smoothly when the regulation of the train wheel including the balance wheel is released, and the mechanical watch that can prevent damage to the shaft supporting the balance sheet and the balance sheet. Can be provided.

According to the present invention, the train wheel can be regulated by bringing the regulation portion into contact with the regulation plate without directly contacting the regulation portion with the balance sheet. Therefore, it is possible to prevent damage to the balance sheet and the shaft that supports the balance sheet.
Further, the regulation portion is set so that the contact / separation direction intersects each of the rotation axis and the straight line connecting the rotation axis and the contact point between the regulation portion of the regulation plate. Therefore, when the regulation portion is separated from the regulation plate, the frictional force generated between the regulation plate and the regulation portion acts in the direction of rotating the regulation plate. When the rotational force acts on the regulation plate, the rotational force is applied to the gears and balances that make up the train wheel. For this reason, the regulation position of the balance spring is near the dead center position, the amount of winding of the hairspring is small, or the friction between the escape wheel and the claw stone of the ankle is large due to deterioration of oil or the like. However, the train wheel can be restarted smoothly.

It is a top view of the front side of the movement of the mechanical timepiece according to 1st Embodiment of this invention. It is a side view of the tourbillon with a constant force device in the 1st Embodiment of this invention. It is a perspective view of the switching device and the train wheel regulation mechanism in the 1st Embodiment of this invention. It is a perspective view of the switching device and the train wheel regulation mechanism in the 1st Embodiment of this invention. It is operation explanatory drawing of the switching device and the train wheel regulation mechanism in 1st Embodiment of this invention. It is operation explanatory drawing of the switching device and the train wheel regulation mechanism in 1st Embodiment of this invention. It is operation explanatory drawing of the switching device and the train wheel regulation mechanism in 1st Embodiment of this invention. It is an enlarged plan view of the main part of the train wheel regulation mechanism in the 2nd Embodiment of this invention. It is a perspective view which showed the main part of the train wheel regulation mechanism in 3rd Embodiment of this invention. It is a perspective view of the main part of the train wheel regulation mechanism in 4th Embodiment of this invention. It is a perspective view of the main part of the train wheel regulation mechanism in 4th Embodiment of this invention.

Next, an embodiment of the present invention will be described with reference to the drawings.

(First Embodiment)
(Mechanical watch)
FIG. 1 is a plan view of the front side of the movement of the mechanical timepiece 1.
As shown in the figure, the mechanical timepiece 1 is composed of a movement 10 and a casing (not shown) for accommodating the movement 10.

The movement 10 has a main plate 11 that constitutes a substrate. A dial (not shown) is arranged on the back side of the main plate 11. The train wheel incorporated on the front side of the movement 10 is referred to as a front train wheel train, and the train wheel train incorporated on the back side of the movement 10 is referred to as a back train wheel train.
A winding stem guide hole 11a is formed in the main plate 11, and the winding stem 12 is incorporated therein so as to be slidable and rotatable. The winding stem 12 regulates the balance with hairspring 102 (inner carriage 34) described later by utilizing the switching device 40 for switching the axial position of the winding stem 12 and the switching operation of the axial position of the winding stem 12. The train wheel regulation mechanism 60 and the train wheel are connected to each other.

Further, the guide shaft portion of the winding stem 12 is provided with a wheel 17 that is rotatable with respect to the winding stem 12 and is immovable in the axial direction. Further, a winding wheel 18 (see FIG. 3) is provided on the tip side of the winding wheel 17 with respect to the winding wheel 17 so as to be movable in the axial direction and non-rotatable with respect to the winding wheel 12. Further, the squeeze wheel 17 and the squeeze wheel 18 are provided so as to be able to mesh with each other. Further, the tsutsumi wheel 18 is configured to be meshable with the small iron wheel 19 (see FIG. 5) used for time adjustment. On the other hand, a round hole wheel 20 is meshed with the wheel wheel 17. Although not particularly shown in FIG. 1, a crown for the user to rotate the winding stem 12 is attached to the base end side of the winding stem 12 on the side opposite to the side where the winding wheel 17 is provided. ing.

Under such a configuration, when the winding stem 12 is rotated in a state where the winding stem 12 is in the position where the winding wheel 17 and the knob wheel 18 are meshed (details will be described later), the winding wheel 18 is rotated. The car 17 rotates through the car. Then, as the wheel 17 rotates, the round hole wheel 20 that meshes with the wheel 17 rotates. Then, as the round hole wheel 20 rotates, the square hole wheel 21 that meshes with the round hole wheel 20 rotates. Further, the rotation of the square hole wheel 21 winds up the main royal fern (not shown) housed in the barrel wheel 22.

In addition to the barrel wheel 22 described above, the front wheel train of the movement 10 is composed of the second wheel 25, the third wheel 26, the fourth wheel 27, and the fifth wheel 28, which provides the rotational force of the barrel wheel 22. It fulfills the function of transmitting. A tourbillon 30 with a constant force device is arranged on the front side of the movement 10.
The second wheel 25 is a gear that meshes with the barrel wheel 22. The third wheel 26 is a gear that meshes with the second wheel 25. The fourth wheel 27 is a gear that meshes with the third wheel 26. The fifth wheel 28 is a gear that meshes with the fourth wheel 27. A tourbillon 30 with a constant force device is meshed with the fifth wheel 28.
The round hole wheel 20, the square hole wheel 21, and the number wheels 25 to 28 are supported by the corresponding rotating shafts 20a, 21a, 25a to 28a and are rotatable.

(Tourbillon with constant force device)
FIG. 2 is a side view of the tourbillon 30 with a constant force device.
As shown in FIGS. 1 and 2, the tourbillon 30 with a constant force device is rotatably supported by a main plate 11 and a carriage receiver (wheel train receiver) (not shown) arranged to face the main plate 11. An outer carriage 33 and an inner carriage 34 rotatably supported with respect to the outer carriage 33 are provided inside the outer carriage 33. Further, the tourbillon 30 with a constant force device has an escape governor 100 for controlling the rotation of the front wheel train and a constant for suppressing fluctuations in the rotational torque transmitted to the escape governor 100. It is equipped with a force device 3.

The outer carriage 33 is provided with a ring-shaped external gear portion 35. The fifth wheel 28 is meshed with the external gear portion 35. The outer carriage 33 can be rotated by inserting tenons provided at both ends into a hole stone (not shown) provided on the main plate 11 or the carriage receiver. The center of this tenon is the rotation axis C1 of the outer carriage 33 and the inner carriage 34.

On the other hand, the inner carriage 34 can be rotated by inserting the tenons provided at both ends into the hole stones (not shown) provided at both ends of the outer carriage 33. The escape speed governor mechanism 100 is mounted on such an inner carriage 34.
The escape speed control mechanism 100 includes an escape wheel 101 that rotates by receiving the rotational force of the inner carriage 34, and a balance sheet 102 that freely vibrates by receiving the rotational force of the escape wheel 101. The escape wheel 101 is influenced by the free vibration of the balance with hairspring 102 and always performs an escape motion at a constant cycle.
Further, the inner carriage 34 is provided with a plurality of legs 36 protruding from the carriage receiving (not shown) side (front side of the paper in FIG. 1, right side in FIG. 2) to the outside (carriage receiving side) of the outer carriage 33. Has been done. A regulation ring 37 is provided at the tip of the leg portion 36 projecting to the outside of the outer carriage 33. The regulation ring 37 constitutes a part of the train wheel regulation mechanism 60, and has a circular outer peripheral surface 37a and an inner peripheral surface 37b having a center on the rotation axis C1 (FIGS. 3 and 4). reference).

The outer carriage 33 and the inner carriage 34 configured in this way are connected via the constant force device 3. The constant force device 3 intermittently rotates the inner carriage 34 and the outer carriage 33 relative to each other. That is, the constant force device 3 is configured to rotate the outer carriage 33 by a certain angle with respect to the inner carriage 34 after the inner carriage 34 has rotated a certain amount.
Further, the constant force device 3 has a constant force spring (not shown), and both ends of the constant force spring are connected to the inner carriage 34 and the outer carriage 33, respectively. That is, the inner carriage 34 is rotatably supported with respect to the outer carriage 33 via a constant force spring (not shown). Then, when the outer carriage 33 rotates by a certain angle with respect to the inner carriage 34, the constant force spring winds up by a predetermined amount. As a result, fluctuations in the rotational torque transmitted to the escape speed governor 100 are suppressed.

(Switching device and train wheel regulation mechanism)
FIG. 3 is a perspective view of the switching device 40 and the train wheel adjusting mechanism 60 as viewed from the side of the train wheel receiving side (not shown) opposite to the main plate 11, and FIG. 4 shows the switching device 40 and the train wheel adjusting mechanism 60 as the main plate. It is a perspective view seen from the 11 side.

(Switching device)
As shown in FIGS. 3 and 4, the switching device 40 has a mandarin duck 41, a mandarin duck 42, and a mandarin duck retainer 45.

The mandarin duck 41 is formed in a substantially crescent shape in a plan view, and is rotatably supported by a support shaft 46 having a substantially central portion projecting from the main plate 11. Further, the substantially oval-shaped head 41a of the mandarin duck 41 is arranged in a constricted portion 12a formed on the winding stem 12 via a step. The constricted portion 12a is formed on the base end side (crown side, right side in FIG. 3) with respect to the winding wheel 17 of the winding stem 12.

Here, the width W1 of the head 41a of the mandarin duck 41 is set to be substantially the same as or slightly smaller than the width W2 of the constricted portion 12a of the winding stem 12. Therefore, the head 41a of the mandarin duck 41 is smoothly displaced so as to follow the movement of the winding stem 12.
Further, an engaging projection 41b is formed on the tail side of the mandarin duck 41, and an engaging pin 41c is projected toward the train wheel receiving side (not shown). The engaging protrusion 41b of the mandarin duck 41 is engaged with the mandarin duck 42.

The Kannuki 42 is arranged side by side on substantially the same plane as the Mandarin duck 41. The Kannuki 42 is formed in a substantially V shape, and is composed of a Kannuki main body 43 and a Kannuki spring 44. Further, in the Kannuki 42, the base end of the Kannuki main body 43 and the base end of the Kannuki spring 44 are joined and integrated. Then, the joint portion (base end) between the Kannuki main body 43 and the Kannuki spring 44 is rotatably supported by the support shaft 47 provided on the main plate 11.

The head portion 43a of the Kannuki main body 43 is arranged at the constricted portion 18a of the connecting wheel 18. The width W3 of the head 43a of the Kannuki main body 43 is set to be substantially the same as or slightly smaller than the width W4 of the constricted portion 18a of the connecting wheel 18. Therefore, when the head portion 43a of the Kannuki main body 43 is displaced, the connecting wheel 18 smoothly slides and moves on the winding stem 12 so as to follow the displacement.

Two engaging recesses 43b and 43c (first engaging recess 43b, second engaging recess 43c) are formed side by side on the side portion on the side of the mandarin duck 41 between the head 43a and the base end of the kanuki main body 43. Has been done. Of these engaging recesses 43b and 43c, the first engaging recess 43b and the engaging protrusion 41b of the mandarin duck 41 are engaged. A smooth mountain portion 43d is formed between the two engaging recesses 43b and 43c. Two engaging recesses 43b and 43c are communicated with each other via the mountain portion 43d.

Further, in the kanuki spring 44, the tip end side of the kanuki spring 44 is engaged with a spring holding pin 48 provided on the main plate 11. As a result, the urging force of the kanuki spring 44 always acts on the kanuki main body 43 so that the head 43a rotates around the support shaft 47 toward the wheel 17 side.

On the other hand, the engagement pin 41c of the mandarin duck 41 is engaged with the mandarin duck retainer 45. The kanuki retainer 45 is arranged on the surface of the mandarin duck 41 and the kanuki 42 on the train receiving side (not shown).
The punch holder 45 has a support portion 51 formed in a substantially V shape having two arms 51a and 51b (first arm 51a and second arm 51b), and a spring portion 52 protruding from the base end side of the support portion 51. And are integrally molded. The base end side of the support portion 51 is fixed to a support shaft 47 that supports the base end of the kanuki 42. On the other hand, of the two arms 51a and 51b of the support portion 51, at the tip of the first arm 51a, a through hole 51c through which the support shaft 46 can be inserted is provided at a position corresponding to the support shaft 46 that supports the mandarin duck 41. It is formed. As a result, the tip of the first arm 51a presses the mandarin duck 41 while escaping the support shaft 46.

The spring portion 52 projects from the base end of the support portion 51 toward the engagement pin 41c of the mandarin duck 41. A head 53 having a substantially square shape in a plan view is integrally formed at the tip of the spring portion 52. Two engaging recesses 53a and 53b (first engaging recesses 53a and second engaging recesses 53b) are formed side by side on the side portion of the head portion 53 on the engagement pin 41c side. These engaging recesses 53a and 53b are engaged with the engaging pin 41c of the mandarin duck 41. A smooth mountain portion 53c is formed between the two engaging recesses 53a and 53b. Two engaging recesses 53a and 53b are communicated with each other via the mountain portion 53c.

(Round train regulation mechanism)
The train wheel regulation mechanism 60 has a regulation lever 62 rotatably supported by a support shaft 61 projecting from the main plate 11 and one end rotatably attached to a base end 62a of the regulation lever 62 via a first connecting pin 63. It is provided with a transmission lever 64 connected to the transmission lever 64 and a start / stop lever 66 rotatably connected to the other end of the transmission lever 64 via a second connecting pin 65.
The regulation lever 62 is formed so as to be elongated in the same direction as the longitudinal direction of the kanuki main body 43 of the kanuki 42. A through hole 62b into which the support shaft 61 can be inserted is formed substantially in the center of the regulation lever 62 in the longitudinal direction. That is, the regulation lever 62 is rotatably supported by the support shaft 61 at substantially the center in the longitudinal direction.

The tip side of the regulation lever 62 from the through hole 62b is a head 62c formed in a substantially oval shape. The head 62c is arranged at the constricted portion 18a of the knob wheel 18 and on the side opposite to the head 43a of the Kannuki main body 43 with the winding stem 12 as the center. Then, when the squeeze wheel 18 slides on the winding stem 12, the head 62c of the regulation lever 62 is displaced so as to follow the sliding movement.

The transmission lever 64 is formed to be curved in a substantially S shape along substantially the same plane as the regulation lever 62.
The start / stop lever 66 is formed by integrally molding a start / stop lever main body 67 and a spring body 68 in which a base end 68a is connected to the start / stop lever main body 67. A second connecting pin 65 for connecting the start / stop lever 66 and the transmission lever 64 is provided at the end of the start / stop lever main body 67 opposite to the spring body 68.
The second connecting pin 65 projects on both sides of the starting / stopping lever main body 67 in the thickness direction. The other end of the transmission lever 64 is rotatably supported at a portion of the second connecting pin 65 protruding from the start / stop lever main body 67 toward the transmission lever 64.

Further, a pin insertion hole 67a is formed at a position slightly separated from the second connecting pin 65 at the end of the starting / stopping lever main body 67 opposite to the spring body 68. A support pin 69 projecting from the main plate 11 is inserted into the pin insertion hole 67a. The start / stop lever 66 is rotatably supported by the support pin 69. That is, the start / stop lever 66 is rotatably provided around the support pin 69.

The spring body 68 to which the base end 68a is connected to the start / stop lever main body 67 is formed in an arc shape centered on the support pin 69. The tip 68b of the spring body 68 is a free end. Further, a bent portion 71 that bends toward the start / stop lever main body 67 side is formed at the tip end 68b of the spring body 68. The bent portion 71 is also formed in an arc shape.
Here, the radius of curvature of the bent portion 71 is set to be smaller than the radius of curvature of the spring body 68. Therefore, the bent portion 71 and the tip 68b of the spring body 68 are smoothly connected.

Further, in the start / stop lever 66, the distance between the center of the support pin 69 and the center of the second connecting pin 65 is defined as L1, and the distance between the center of the support pin 69 and the tip 68b of the spring body 68 is defined as L2. When the distances L1 and L2 are set,
L2> L1 ... (1)
Is set to meet.

Under such a configuration, when the start / stop lever 66 swings around the support pin 69, the tip 68b of the spring body 68 comes into contact with or separates from the outer peripheral surface 37a of the regulation ring 37. At this time, the distance L1 between the center of the support pin 69 and the center of the second connecting pin 65 and the distance L2 between the center of the support pin 69 and the tip 68b of the spring body 68 satisfy the equation (1). Therefore, the moving distance of the tip 68b of the spring body 68 is larger than the moving distance of the second connecting pin 65. The details of the operation of the switching device 40 and the train wheel adjusting mechanism 60 will be described later.

(Operation of tourbillon with constant force device)
Next, the operation of the tourbillon 30 with a constant force device will be described.
Since the outer gear portion 35 of the outer carriage 33 is meshed with the fifth wheel 28 (see FIG. 1), the rotational force of the barrel wheel 22 is transmitted to the outer carriage 33 via the front wheel train.
Here, the outer carriage 33 and the inner carriage 34 are connected via a constant force device 3 that intermittently rotates the outer carriage 33 and the inner carriage 34 relative to each other. Therefore, the outer carriage 33 is stopped until the inner carriage 34 rotates by a certain angle. During this time, the inner carriage 34 rotates with respect to the outer carriage 33 under the urging force of a constant force spring (not shown) constituting the constant force device 3.

Then, when the inner carriage 34 rotates by a certain angle, the outer carriage 33 rotates due to the rotational force of the barrel wheel 22 acting on the outer carriage 33. At this time, a constant force spring (not shown) is wound up by the amount of rotation of the outer carriage 33, and the inner carriage 34 continues to rotate due to the urging force of the constant force spring. By repeating this, the inner carriage 34 continues to rotate with a substantially constant torque.

Further, the escape speed control mechanism 100 mounted on the inner carriage 34 is driven by receiving the rotational force of the inner carriage 34. Specifically, the escape wheel 101 rotates under the rotational force of the inner carriage 34. Then, the balance sheet 102 freely vibrates through an ankle (not shown) in response to the rotational force of the escape wheel 101. The escape wheel 101 is influenced by the free vibration of the balance with hairspring 102 and always performs an escape motion at a constant cycle.
The inner carriage 34 is configured to make one rotation in one minute, for example. Then, for example, a second indicator (not shown) is attached to the outer carriage 33 or the inner carriage 34.

(Operation of switching device and train wheel regulation mechanism)
Next, the operations of the switching device 40 and the train wheel regulation mechanism 60 will be described with reference to FIGS. 5 to 8.
5 to 8 are explanatory views of the operation of the switching device 40 and the train wheel regulation mechanism 60.
As shown in FIG. 5, in a state where the winding stem 12 is located closest to the inside of the movement 10 along the direction of the rotation axis (hereinafter referred to as the 0th step), the first engaging recess 43b of the mandarin duck body 43 The engaging protrusion 41b of the mandarin duck 41 is housed in the box. Further, the engaging pin 41c of the mandarin duck 41 is housed in the first engaging recess 53a formed in the spring portion 52 of the punching retainer 45. As a result, the position of the winding stem 12 is held at the 0th stage.

At the 0th stage, the car 18 is meshed with the car 17. Here, the squeeze wheel 18 is provided so as not to rotate with respect to the winding stem 12. Therefore, when the winding stem 12 is rotated at the 0th stage, the winding wheel 18 is rotated integrally with the winding stem 12, and further, the squeeze wheel 17 is rotated via the winding wheel 18. Then, as the wheel 17 rotates, the round hole wheel 20 that meshes with the wheel 17 rotates. Then, as the round hole wheel 20 rotates, the square hole wheel 21 that meshes with the round hole wheel 20 rotates. Further, the rotation of the square hole wheel 21 winds up the main royal fern (not shown) housed in the barrel wheel 22.
Further, in this 0th stage state, the tip 68b of the spring body 68 of the start / stop lever 66 is separated from the regulation ring 37.

Next, as shown in FIG. 6, when the winding stem 12 is started to be pulled from the 0th stage to the crown side (right side in FIG. 6) (see arrow Y1 in FIG. 6), it follows the movement of the winding stem 12. The head 41a of the mandarin duck 41 also begins to displace. That is, the mandarin duck 41 begins to rotate clockwise in FIG. 6 about the support shaft 46 (see arrow Y2 in FIG. 6). Then, the engaging pin 41c of the mandarin duck 41 starts to move from the first engaging recess 53a formed in the spring portion 52 of the punching retainer 45 to the mountain portion 53c side. Therefore, the head portion 53 of the spring portion 52 is pressed and slightly displaced toward the inside of the movement 10 (left side in FIG. 6).
The state in which the engaging pin 41c of the mandarin duck 41 is located at the apex of the mountain portion 53c formed on the spring portion 52 of the punching retainer 45 is defined as the 0.5th step. Hereinafter, this state is simply referred to as the 0.5th stage.

Further, in the 0.5th step, the engaging protrusion 41b of the mandarin duck 41 moves from the first engaging recess 43b of the mandarin duck body 43 toward the mountain portion 43d. As a result, the Kannuki main body 43 is pressed. The pressed Kannuki main body 43 resists the spring force of the Kannuki spring 44 and is slightly displaced toward the inside of the movement 10 (see arrow Y3 in FIG. 6). Then, the tsutsumi wheel 18 slides in a direction away from the squeeze wheel 17 so as to follow the displacement of the kanuki main body 43 (see arrow Y4 in FIG. 6). As a result, the meshing with the tsutsumi car 18 and the squeeze car 17 is released. In the 0.5th step, the engaging protrusion 41b of the mandarin duck 41 does not move to the apex of the mountain portion 43d of the mandarin duck main body 43, and is displaced from the apex of the mountain portion 43d to the first engaging recess 43b side. Stop at.

Further, the head 62c of the regulation lever 62 is displaced as the sliding wheel 18 slides. That is, the regulation lever 62 starts to rotate counterclockwise in FIG. 6 around the support shaft 61. Then, the train wheel regulation mechanism 60 is activated, and the start / stop lever 66 starts to rotate counterclockwise in FIG. 6 around the support pin 69 (see arrow Y5 in FIG. 6). That is, the spring body 68 of the start / stop lever 66 begins to approach the outer peripheral surface 37a of the regulation ring 37 along the circle centered on the support pin 69.
In the 0.5th stage state, the displacement amount of the regulation lever 62 is small with respect to the displacement amount of the piercing main body 43, and the tip 68b of the spring body 68 of the start / stop lever 66 is still on the outer peripheral surface 37a of the regulation ring 37. Not in contact.

Next, as shown in FIG. 7, when the winding stem 12 is further pulled from the 0.5th step to the crown side (right side in FIG. 7) (see arrow Y1 in FIG. 7), the winding stem 12 is further pulled. Following the movement, the head 41a of the mandarin duck 41 is further displaced. That is, the mandarin duck 41 further rotates clockwise in FIG. 7 about the support shaft 46 (see arrow Y2 in FIG. 7). Then, the engaging pin 41c of the mandarin duck 41 gets over the mountain portion 53c formed in the spring portion 52 of the mandarin duck retainer 45. At this time, the spring portion 52 begins to return to the original position (the position at the time of the 0th step) by the action of the restoring force. Then, the engaging pin 41c of the mandarin duck 41 is housed in the second engaging recess 53b formed in the spring portion 52.

The first stage is a state in which the engagement pin 41c of the mandarin duck 41 is housed in the second engagement recess 53b formed in the spring portion 52 of the mandarin duck retainer 45. Hereinafter, this state is simply referred to as the first stage.
The winding stem 12 is positioned in the first stage by accommodating the engaging pin 41c of the mandarin duck 41 in the second engaging recess 53b of the punch retainer 45.

Further, in the first stage, the engaging projection 41b of the mandarin duck 41 stops at the apex of the mountain portion 43d of the mandarin duck main body 43. As a result, the Kannuki main body 43 is further pressed. The pressed Kannuki main body 43 resists the spring force of the Kannuki spring 44 and further displaces toward the inside of the movement 10 (see arrow Y3 in FIG. 7). Then, the squeeze wheel 18 moves so as to follow the displacement of the Kannuki main body 43 (see arrow Y4 in FIG. 7). Then, the tsutsumi wheel 18 and the small iron wheel 19 are meshed with each other.

Further, the head 62c of the regulation lever 62 is further displaced as the sliding wheel 18 slides. That is, the regulation lever 62 further rotates counterclockwise in FIG. 7 about the support shaft 61. Then, the train wheel regulation mechanism 60 is activated, and the start / stop lever 66 rotates counterclockwise in FIG. 7 around the support pin 69 (see arrow Y5 in FIG. 7). Then, the tip 68b of the spring body 68 of the start / stop lever 66 comes into contact with the outer peripheral surface 37a of the regulation ring 37.

At this time, the tip 68b of the spring body 68 is pressed against the outer peripheral surface 37a of the regulation ring 37, and the spring body 68 is elastically deformed toward the support pin 69 with the base end 68a as the base point. That is, the spring body 68 presses the outer peripheral surface 37a of the regulation ring 37 from the outer side in the radial direction to the inner side in the radial direction. Then, the frictional force between the regulation ring 37 and the spring body 68 generated by this regulates the regulation ring 37, and further regulates the inner carriage 34 provided with the regulation ring 37.

Further, in the first stage, the tsutsumi wheel 18 and the small iron wheel 19 are meshed with each other. Therefore, when the winding stem 12 is rotated, the tsutsumi wheel 18 rotates integrally with the winding stem 12, and further, the small iron wheel 19 rotates. As a result, the time can be adjusted with the second hand stopped (with the inner carriage 34 stopped). Further, in the first stage, since the engagement between the squeeze wheel 18 and the squeeze wheel 17 is released, the squeeze wheel 17 does not rotate even if the winding stem 12 is rotated.

Here, the start / stop lever 66 rotates around the support pin 69, and the spring body 68 approaches the outer peripheral surface 37a of the regulation ring 37 along the circle centered on the support pin 69. In other words, the tip 68b of the spring body 68 approaches the outer peripheral surface 37a along the tangential direction of the outer peripheral surface 37a of the regulation ring 37. At this time, since the bent portion 71 is formed at the tip end 68b of the spring body 68, the spring body 68 smoothly contacts the outer peripheral surface 37a of the regulation ring 37. Therefore, the impact when the spring body 68 comes into contact with the regulation ring 37 is reduced as much as possible.

The term "along the tangential direction" of the outer peripheral surface 37a includes not "above" the tangent line but a slight deviation from the tangential direction. That is, in the first embodiment, since the spring body 68 is rotating around the support pin 69, its locus is arcuate and not linear. However, even in such a case, if the arc locus passes through a locus close to the tangent line of the outer peripheral surface 37a, it is defined as "along the tangential line direction".

Next, as shown in FIG. 5, when the winding stem 12 is pushed back from the first step to the 0th step (see arrow Y6 in FIG. 5), the head 41a of the mandarin duck 41 also follows the movement of the winding stem 12. Displace. That is, the mandarin duck 41 begins to rotate counterclockwise in FIG. 5 around the support shaft 46 (see arrow Y7 in FIG. 5). Then, the engaging pin 41c of the mandarin duck 41 is housed in the first engaging recess 53a again from the second engaging recess 53b formed in the spring portion 52 of the punch retainer 45 via the mountain portion 53c.
Further, the engaging protrusion 41b of the mandarin duck 41 moves from the mountain portion 43d of the mandarin duck main body 43 toward the first engaging recess 43b. Then, the engaging protrusion 41b of the mandarin duck 41 is housed in the first engaging recess 43b of the shaving body 43 again. At this time, the spring force of the kanuki spring 44 pushes the kanuki main body 43 back to the crown side (right side in FIG. 5) (see arrow Y8 in FIG. 5). Then, the tsutsumi wheel 18 slides toward the squeeze wheel 17 side so as to follow the displacement of the kanuki main body 43 (see arrow Y9 in FIG. 5).

Further, the head 62c of the regulation lever 62 is displaced as the sliding wheel 18 slides. That is, the regulation lever 62 starts to rotate clockwise in FIG. 5 around the support shaft 61. Then, the spring body 68 of the start / stop lever 66 is separated from the outer peripheral surface 37a of the regulation ring 37. As a result, the inner carriage 34 (second hand) is released from the regulation and restarted.
Here, as shown in FIG. 5, when the spring body 68 of the start / stop lever 66 is separated from the outer peripheral surface 37a of the regulation ring 37, the spring body 68 is along the tangential direction of the outer peripheral surface 37a of the regulation ring 37. , The tip 68b is separated from the outer peripheral surface 37a (see arrow Y10 in FIG. 5). At this time, a rotational force is applied to the regulation ring 37 by the frictional force generated between the regulation ring 37 and the tip 68b of the spring body 68 (see arrow Y11 in FIG. 5).

As described above, in the above-described first embodiment, the contact / separation direction of the spring body 68 is the rotation axis C1 of the regulation ring 37 (inner carriage 34) and the contact point P1 between the rotation axis C1 and the spring body 68 (FIG. 7). It is set in the direction of intersecting each of the straight lines S1 connecting with (see).
Therefore, according to the first embodiment described above, for example, the escape wheel 101 is in a state where the power spring (not shown) is close to unwinding and the torque of the escape wheel 101 is small, or due to deterioration of oil or the like. Even when the inner carriage 34 (wheel train) is regulated in a state where there is a large amount of friction between the wheel and the ankle (not shown), the inner carriage 34 (wheel train) can be restarted smoothly after the regulation is released. can.

Further, a regulation ring 37 is provided on the inner carriage 34, and the start / stop lever 66 is brought into contact with and separated from the regulation ring 37 to regulate the inner carriage 34 or release the regulation. Therefore, the start / stop lever 66 does not come into direct contact with the inner carriage 34, and damage to the inner carriage 34 can be prevented. Further, since the start / stop lever 66 is not brought into contact with the balance with hairspring 102, damage to the balance with hairspring 102 and the shaft supporting the balance with the balance with hairspring 102 can be prevented.

Further, in order to operate the start / stop lever 66, the train wheel regulation mechanism 60 includes a regulation lever 62 and a transmission lever 64, and the regulation lever 62 is configured to follow the wheel 18 and operate. ing. That is, the regulation lever 62 and the transmission lever 64 are configured to operate the start / stop lever 66 in conjunction with the movement of the winding stem 12. As described above, it is not necessary to separately provide a mechanism for operating the start / stop lever 66 (a configuration of a lever or the like for operating the start / stop lever 66), and the start / stop lever 66 can be operated by using the existing winding stem 12. Can be activated. Therefore, the number of parts of the train wheel regulation mechanism 60 can be reduced, and the size and weight can be reduced.

Further, a bent portion 71 that bends toward the starting / stopping lever main body 67 side is formed at the tip 68b of the spring body 68 of the starting / stopping lever 66. Therefore, the spring body 68 can be smoothly brought into contact with the outer peripheral surface 37a of the regulation ring 37. Therefore, the impact when the spring body 68 comes into contact with the regulation ring 37 can be minimized.

Further, in the start / stop lever 66, the distance L1 between the center of the support pin 69 and the center of the second connecting pin 65 and the distance L2 between the center of the support pin 69 and the tip 68b of the spring body 68 (FIG. 3) is set to satisfy the equation (1). Therefore, the moving distance of the tip 68b of the spring body 68 can be increased with respect to the moving distance of the second connecting pin 65. That is, even if the moving force of the wheel 18 that is the driving force of the train wheel regulation mechanism 60 is small, the spring body 68 of the start / stop lever 66 is largely separated or brought close to the regulation ring 37. Can be done. Therefore, the spring body 68 can be reliably approached and separated from the regulation ring 37.

Further, the spring body 68 is brought into contact with the outer peripheral surface 37a of the regulation ring 37 to generate a frictional force. That is, the regulation ring 37 is regulated by pressing the spring body 68 from the outside in the radial direction to the inside in the radial direction against the regulation ring 37. Therefore, it is possible to easily control the amount of deflection of the spring body 68. That is, the pressing force of the spring body 68 with respect to the regulation ring 37 can be stabilized regardless of the posture of the mechanical timepiece 1. Therefore, the regulation ring 37 can be reliably regulated by the start / stop lever 66 (spring body 68), and the inner carriage 34 (wheel train) can be restarted more smoothly.

(Second Embodiment)
(Round train regulation mechanism)
Next, a second embodiment of the present invention will be described with reference to FIG.
FIG. 8 is an enlarged plan view of a main part of the train wheel adjustment mechanism 260 according to the second embodiment. The same reference numerals as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted (the same applies to the following embodiments).
As shown in the figure, the difference between the first embodiment and the second embodiment is that the shape of a part of the train wheel regulation mechanism 60 of the first embodiment and the train wheel train regulation mechanism 260 of the second embodiment are different. It differs from some shapes.

More specifically, the start / stop lever 266 constituting the train wheel regulation mechanism 260 has a ratchet claw 81 formed at the tip 68b of the spring body 268. The ratchet claw 81 is arranged on the surface of the tip 68b on the side in contact with the regulation ring 237. Further, the surface of the ratchet claw 81 on the side in contact with the regulation ring 237 is an inclined surface 81a. The inclined surface 81a causes the ratchet claw 81 to taper toward the tip. Further, the ratchet claw 81 is formed so that the base end surface 81b on the side opposite to the tip end is substantially orthogonal to the extending direction of the spring body 268.

On the other hand, the regulation ring 237 is formed with ratchet teeth 82 that can be engaged with the ratchet pawl 81 on the outer peripheral surface 237a. The ratchet teeth 82 are formed so as to correspond to the shape of the ratchet claw 81. That is, the ratchet tooth 82 has an inclined surface 82a and an end surface 82b. The end face 82b is substantially orthogonal to the tangential direction of the regulation ring 237.

Under such a configuration, when the train wheel regulation mechanism 260 operates and the spring body 268 of the start / stop lever 266 moves in the direction approaching the regulation ring 237 (see arrow Y5 in FIG. 8), the train is generated at the regulation ring 237. The spring body 268 of the stop lever 266 comes into contact. At this time, first, the inclined surface 81a of the ratchet claw 81 comes into contact with the ratchet teeth 82 of the regulation ring 237.

Here, when the ratchet claw 81 comes into contact with the tip of the ratchet tooth 82, the spring body 268 is elastically deformed and the ratchet claw 81 rides on the tip of the ratchet tooth 82. When the inclined surface 82a of the ratchet tooth 82 and the inclined surface 81a of the ratchet claw 81 come into contact with each other, the pressing force of the ratchet claw 81 on the ratchet tooth 82 acts along the inclined surfaces 81a and 82a. In other words, the inclined surface 82a of the ratchet tooth 82 and the inclined surface 81a of the ratchet claw 81 are in surface contact with each other, and the frictional resistance of the ratchet claw 81 with respect to the ratchet tooth 82 is increased.
As described above, when the ratchet teeth 82 and the ratchet claws 81 come into contact with each other, the frictional resistance is small until the ratchet teeth 82 and the ratchet claws 81 are completely engaged with each other. On the other hand, when the ratchet tooth 82 and the ratchet claw 81 are engaged, the pressing force of the ratchet claw 81 on the ratchet tooth 82 acts along the inclined surfaces 81a and 82a (the frictional resistance of the ratchet claw 81 with respect to the ratchet tooth 82 increases. Larger), the ratchet ring 237 is regulated by the start / stop lever 266.

Next, a case where the train wheel regulation mechanism 260 is activated and the spring body 268 of the start / stop lever 266 moves away from the regulation ring 237 (see arrow Y10 in FIG. 8) will be described.
Here, in a state where the ratchet tooth 82 and the ratchet claw 81 are engaged, the end surface 82b of the ratchet tooth 82 and the base end surface 81b of the ratchet claw 81 are in contact with each other. The end face 82b of the ratchet tooth 82 is substantially orthogonal to the tangential direction of the regulation ring 237.

On the other hand, the base end surface 81b of the ratchet claw 81 is substantially orthogonal to the extending direction of the spring body 268, that is, substantially orthogonal to the moving direction of the spring body 268. Therefore, when the spring body 68 is separated from the regulation ring 237, the base end surface 81b of the ratchet claw 81 moves while pressing the end surface 82b of the ratchet teeth 82. Therefore, a rotational force is applied to the regulation ring 237 (see arrow Y11 in FIG. 5).

As described above, in the second embodiment described above, the ratchet claw 81 is formed on the starting / stopping lever 266 at the tip 68b of the spring body 268. Further, the regulation ring 237 is formed with ratchet teeth 82 capable of engaging with the ratchet claw 81 on the outer peripheral surface 237a. Therefore, the resistance in the direction in which the start / stop lever 266 separates from the regulation ring 237 can be made larger than the frictional resistance in the direction in which the start / stop lever 266 abuts on the regulation ring 237. Therefore, when the regulation ring 237 is regulated by the start / stop lever 266, the regulation ring 237 can be regulated smoothly and surely. Further, when the spring body 268 of the start / stop lever 266 is separated from the regulation ring 237, a sufficient rotational force can be applied to the regulation ring 237.

In the second embodiment described above, the case where the ratchet claw 81 is formed on the spring body 268 of the start / stop lever 266 and the ratchet tooth 82 is formed on the regulation ring 237 has been described. However, the present invention is not limited to this, and the contact points between the regulation ring 237 in contact with the spring body 268 (outer peripheral surface 237a) and the spring body 268 in contact with the regulation ring 237 (tip 68b) are not limited to this. It suffices if a rough surface portion having a rougher surface roughness is provided. Examples of the method for forming the rough surface portion include a method of forming by performing knurling. However, it is not limited to this.
By providing the rough surface portion, the frictional force generated between the regulation ring 37 and the spring body 68 becomes large, so that the regulation ring 237 can be reliably regulated by the start / stop lever 266. Further, when the spring body 268 of the start / stop lever 266 is separated from the regulation ring 237, a sufficient rotational force can be applied to the regulation ring 237.

Further, when forming the rough surface portion, it is possible to form the rough surface portion so that the frictional resistance in the direction in which the start / stop lever 266 is separated from the regulation ring 237 is larger than the frictional resistance in the direction in which the start / stop lever 266 abuts on the regulation ring 237. desirable. For example, it is possible to provide a carpet as a rough surface portion. Since the carpet has a direction of hair flow, the frictional resistance in the direction in which the start / stop lever 266 separates from the regulation ring 237 can be made larger than the frictional resistance in the direction in which the start / stop lever 266 abuts on the regulation ring 237.

(Third Embodiment)
(Round train regulation mechanism)
Next, a third embodiment of the present invention will be described with reference to FIG.
FIG. 9 is a perspective view showing a main part of the train wheel adjusting mechanism 360 according to the third embodiment.
As shown in the figure, the difference between the first embodiment and the third embodiment is that the shape of the start / stop lever 66 of the first embodiment and the start / stop lever 366 of the third embodiment are different.

More specifically, in the start / stop lever 366, the start / stop lever main body 67 and the spring body 368 to which the base end 368a is connected to the start / stop lever main body 67 are integrally molded. The spring body 368 extends so as to have the same thickness direction as the start / stop lever main body 67 and to form an arc shape centered on the support pin 69. The tip 368b of the spring body 368 is a free end. Further, the tip 368b of the spring body 368 is formed with a bent portion 371 that bends in a direction away from the regulation ring 37 (upward in FIG. 9).

Under such a configuration, when the start / stop lever 366 swings around the support pin 69, the tip 368b of the spring body 368 becomes a flat surface 37c in the axial direction of the regulation ring 37 (upper flat surface 37c in FIG. 9). ) Touch or separate. That is, the start / stop lever 366 in the third embodiment is not in contact with or separated from the outer peripheral surface 37a of the regulation ring 37 as in the first embodiment described above, but is on the flat surface 37c of the regulation ring 37. Touch and separate. Then, when the spring body 368 of the start / stop lever 366 comes into contact with the flat surface 37c of the regulation ring 37, it is slightly elastically deformed in the direction away from the regulation ring 37.

That is, the tip 368b of the spring body 368 is pressed against the flat surface 37c of the regulation ring 37. Then, the regulation ring 37 is regulated by the frictional force between the regulation ring 37 and the spring body 368 generated by this. Further, when the spring body 368 is separated from the flat surface 37c of the regulation ring 37, a rotational force is applied to the regulation ring 37 by the frictional force generated between the flat surface 37c and the tip 368b of the spring body 368.
Therefore, according to the above-mentioned third embodiment, the same effect as that of the above-mentioned first embodiment can be obtained.

In the third embodiment described above, since the tip 368b of the spring body 368 is connected to and separated from the flat surface 37c of the regulation ring 37, the regulation ring 37 is centered on the rotation axis C1 of the inner carriage 34. It does not have to be formed in a circular shape to have, and any shape can be adopted as long as it has a plate shape. For example, the regulation ring 37 may have a polygonal shape.

(Fourth Embodiment)
(Round train regulation mechanism)
Next, a fourth embodiment of the present invention will be described with reference to FIGS. 10 and 11.
FIG. 10 shows a main part of the train wheel adjustment mechanism 460 according to the fourth embodiment, and is a perspective view seen from the train wheel receiving side (not shown). FIG. 11 shows the main part of the train wheel adjustment mechanism 460 from the main plate 11 side. It is a perspective view as seen.
As shown in FIGS. 10 and 11, in the fourth embodiment, the gear lever mechanism 90 is provided in place of the regulation lever 62 and the transmission lever 64 of the first embodiment. This point is different from the above-described first embodiment.

More specifically, the gear lever mechanism 90 is composed of a first gear lever 91 provided on the mandarin duck 41 and a second gear lever 92 integrally molded with the start / stop lever 466. The first gear lever 91 is arranged on the main plate 11 side of the mandarin duck 41. The first gear lever 91 is a plate-shaped one formed so as to extend from a support shaft 46 on which the mandarin duck 41 is rotatably supported toward the second gear lever 92. Then, the mandarin duck 41 and the first gear lever 91 are overlapped and integrated.

Further, the first gear lever 91 is formed in a substantially fan shape so as to gradually widen from the support shaft 46 toward the second gear lever 92. A tooth portion 91a is formed on the circumference of the first gear lever 91 having such a shape. The tooth portion 91a is meshed with the second gear lever 92.

The second gear lever 92 is formed so as to extend from the start / stop lever main body 467 of the start / stop lever 466 toward the first gear lever 91. The second gear lever 92 is formed in a substantially fan shape so as to gradually widen from the support pin 69 that rotatably supports the start / stop lever 66 toward the first gear lever 91. A tooth portion 92a is formed on the circumference of the second gear lever 92 having such a shape. The tooth portion 92a is meshed with the tooth portion 91a of the first gear lever 91.

Under such a configuration, when the winding stem 12 is pulled toward a crown (not shown) (see arrow Y1 in FIG. 10), the head 41a of the winding stem 41 is displaced to follow the movement of the winding stem 12 and the mandarin duck 41 rotates about the support shaft 46 (see arrow Y2 in FIG. 10). Further, the first gear lever 91 rotates integrally with the mandarin duck 41 (see arrow Y12 in FIG. 10). Then, the second gear lever 92 meshed with the first gear lever 91 rotates about the support pin 69 so as to follow the first gear lever 91 (see arrow Y13 in FIG. 10).

Then, the start / stop lever 466 approaches the regulation ring 37 centering on the support pin 69. Then, the tip 68b of the spring body 68 of the start / stop lever 466 comes into contact (presses) with the outer peripheral surface 37a of the regulation ring 37, and the regulation ring 37 is regulated.
On the other hand, by pushing back the winding stem 12, the start / stop lever 466 rotates in the opposite direction, and the spring body 68 of the start / stop lever 466 is separated from the regulation ring 37. At this time, a rotational force is applied to the regulation ring 37.

Therefore, according to the above-mentioned fourth embodiment, the same effect as that of the above-mentioned first embodiment can be obtained. In addition to this, the number of parts of the train wheel regulation mechanism 460 can be reduced as compared with the case where the regulation lever 62 and the transmission lever 64 are used as in the first embodiment described above. Therefore, the configuration of the train wheel regulation mechanism 460 can be simplified.
Further, by adjusting the gear ratio of the gear lever mechanism 90, the moving distance of the tip 68b of the spring body 68 can be increased. That is, for example, by setting the gear diameter of the tooth portion 91a of the first gear lever 91 to be larger than the gear diameter of the tooth portion 92a of the second gear lever 92, the first gear lever 91 is second with respect to the rotation angle. 2 The rotation angle of the gear lever 92 can be increased. Therefore, even if the moving force of the wheel 18 that is the driving force of the train wheel regulation mechanism 460 is small, the spring body 68 of the start / stop lever 66 is largely separated or brought close to the regulation ring 37. be able to. Therefore, the spring body 68 can be reliably approached and separated from the regulation ring 37.

(Fifth Embodiment)
In the train wheel regulation mechanism 360 of the third embodiment described above, a case where the spring body 368 of the start / stop lever 366 is provided on the regulation ring 37 so as to be able to connect and detach is described. However, the present invention is not limited to this, and the train wheel adjustment mechanism is such that the spring body 368 of the start / stop lever 366 can be directly attached to and detached from any of the cars 20, 21, 25, 28 constituting the train wheel train. 360 may be provided. That is, the train wheel adjusting mechanism 360 may be provided on a flat surface in the axial direction of any of the cars 20, 21, 25, and 28 so that the spring body 368 of the start / stop lever 366 can be brought into contact with and separated from each other. In this case, the length of the transmission lever 64 constituting the train wheel regulation mechanism 360 may be changed according to the arrangement location of the train wheel regulation mechanism 360.

As described above, in the above-mentioned fifth embodiment, the vehicles 20, 21, 25, 28 to which the spring body 368 is brought into contact with and detached have two functions, that is, the drive transmission function of the train wheel and the function of the regulation ring 37. It will be. Therefore, according to the fifth embodiment described above, the number of parts of the train wheel regulation mechanism 460 can be reduced, and the manufacturing cost can be reduced. In addition, the train wheel regulation mechanism 460 can be miniaturized as a whole.

In the fifth embodiment described above, the spring body 368 of the start / stop lever 366 of the train wheel adjusting mechanism 360 directly contacts the flat surface in the axial direction of any of the cars 20, 21, 25, and 28. A case where the components are configured to be separated has been described. However, the present invention is not limited to this, and for example, the regulation ring 237 in the second embodiment (see FIG. 8) described above is configured to have the role of the regulation ring 237 in any of the vehicles 20, 21, 25, and 28. You may. That is, the inner carriage 34 may not be provided with the regulation ring 237, and the spring body 268 of the start / stop lever 266 may be provided in any of the cars 20, 21, 25, and 28 so as to be able to connect and detach in the radial direction.

Further, the present invention is not limited to this, and in the train wheel adjusting mechanism 60 of the first embodiment described above, the role of the adjusting ring 37 is configured to be given to any of the vehicles 20, 21, 25, and 28. You may. In such a case, or when the role of the regulation ring 237 is configured to be given to any of the vehicles 20, 21, 25, 28, the vehicles 20, 21, which have the role of the regulation ring 37, 237, The arrangement positions of the train wheel adjusting mechanisms 60 and 260 may be changed according to the positions of 25 to 28. In this case as well, the length of the transmission lever 64 constituting the train wheel adjusting mechanism 60, 260 may be changed according to the arrangement location of the train wheel adjusting mechanism 60, 260.

Further, the present invention is not limited to the above-described embodiment, and includes various modifications to the above-described embodiment without departing from the spirit of the present invention.
For example, the configurations of the train wheel adjusting mechanisms 60 to 460 according to the first to fifth embodiments may be selected and replaced.

Further, in the above-described embodiment, the case where the inner carriage 34 is provided with the regulation rings 37 and 237 and the regulation ring 37 is regulated to result in the regulation of the train wheel has been described. However, the present invention is not limited to this, and the configuration of the train wheel regulation mechanism 60 to 460 can be adopted for the movement 10 which does not have the tourbillon 30 with a constant force device. Further, the configuration of the train wheel regulation mechanism 60 to 460 can be adopted not only for the tourbillon 30 with a constant force device provided with the constant force device 3 but also for a normal tourbillon not provided with the constant force device 3.

Further, in the above-described embodiment, the tourbillon 30 with a constant force device is provided with the regulation ring 37, or each of the vehicles 20, 21, 25, 28 constituting the train wheel has the role of the regulation ring 37,237. I explained the case of making a car. However, the present invention is not limited to this. 237 may be provided. In this case, it is desirable that the regulation ring 37 is formed with a circular outer peripheral surface 37a or an inner peripheral surface 37b having a center coaxially with the rotation shafts 20a, 21a, 25a to 28a of each vehicle 25 to 28. Further, each car 20, 21, 25 to 28 and the regulation rings 37, 237 may be completely separated or integrated.

Further, in the above-described embodiment, the start / stop levers 66 to 466 elastically deform the spring bodies 68 and 268 to apply a pressing force to the regulation rings 37 and 237, resulting in the regulation rings 37 and 237. , And the case of applying a rotational force to the regulation rings 37 and 237 has been described. However, the present invention is not limited to this, and the spring bodies 68 and 268 may be rigid bodies having no elasticity. In this case, a part of the start / stop lever bodies 67 and 467 of the start / stop levers 66 to 466 has a structure that can be elastically deformed. Then, the spring bodies 68 and 268 are pressed against the regulation rings 37 and 237 by the elastic force of the start and stop lever main bodies 67 and 467.

Further, in the above-described first embodiment, the case where the start / stop lever 66 is configured to come into contact with the outer peripheral surface 37a of the regulation ring 37 has been described. However, the start / stop lever 66 may be configured to come into contact with the regulation ring 37, and the contact point is not limited to the outer peripheral surface 37a. For example, the start / stop lever 66 may be configured to come into contact with the inner peripheral surface 37b (see FIGS. 3 and 4) of the regulation ring 37. However, in this case, it is necessary to change the shapes of the start / stop lever 66, the transmission lever 64, the regulation lever 62, and the like. Then, if the spring body 68 of the start / stop lever 66 is configured to be able to come into contact with the outer peripheral surface 37a and the inner peripheral surface 37b of the regulation ring 37 along the tangential direction of the outer peripheral surface 37a and the inner peripheral surface 37b. good.
Further, a disk-shaped plate may be used instead of the regulation ring 37. In this case, the spring body 68 is brought into contact with the outer peripheral surface of the disk-shaped plate.

Further, in the above-described first embodiment, the case where the regulation ring 37 is regulated by pressing the spring body 68 from the radial outer side to the radial inner side on the regulation ring 37 has been described. However, the present invention is not limited to this, and the spring body 68 is configured to move with respect to the outer peripheral surface 37a and the inner peripheral surface 37b of the regulation ring 37 along the tangential direction of the outer peripheral surface 37a and the inner peripheral surface 37b. I just need to be there. In other words, the spring body 68 may be configured so as not to move in the radial direction of the outer peripheral surface 37a of the regulation ring 37. Further, the spring body 68 may be configured to come into contact with any one of two axially opposed surfaces of the regulation ring 37 other than the outer peripheral surface 37a and the inner peripheral surface 37b.

Further, in the above-described first embodiment, the case where the spring body 68 is supported by the start / stop lever main body 67 and the start / stop lever main body 67 is rotatably supported by the support pin 69 has been described. Then, the case where the spring body 68 is moved along the tangential direction of the outer peripheral surface 37a of the regulation ring 37 by rotating the start / stop lever main body 67 around the support pin 69 has been described. However, the present invention is not limited to this, and the spring body 68 is configured to move along the tangential direction of the outer peripheral surface 37a and the inner peripheral surface 37b with respect to the outer peripheral surface 37a and the inner peripheral surface 37b of the regulation ring 37. It suffices if it is done. For example, the spring body 68 is composed of a single leaf spring or the like, and the leaf spring is slid along the tangential direction of the outer peripheral surface 37a of the regulation ring 37 by a guide provided on the main plate 11 or a train wheel receiver (not shown). It may be configured to exercise).

The configuration of this slide movement (linear motion) is not limited to the above-described first embodiment, and can be adopted in place of the start / stop levers 266 to 466 in the second to fifth embodiments.
That is, in the train wheel regulation mechanisms 60 to 460, the contact / separation directions of the spring bodies 68 and 268 with respect to the regulation rings 37 and 237 are the rotation axis C1 of the regulation rings 37 and 237, and the rotation axes C1 and the spring bodies 68 and 268. It suffices if it is set in the direction of intersecting each of the straight lines S1 (see, for example, FIG. 7) connecting the contact point P1. For example, the spring bodies 68 and 268 may be brought into contact with and separated from each other diagonally from above the regulation rings 37 and 237 in the axial direction.

Further, the spring body 68 may not be configured to operate in conjunction with the operation of the winding stem 12, and a mechanism for operating the spring body 68 may be separately provided.
Further, in the above-described first embodiment, in the start / stop lever 66, the distance L1 between the center of the support pin 69 and the center of the second connecting pin 65, and the center of the support pin 69 and the tip 68b of the spring body 68 The case where the distance L2 between and the distance L2 is set so as to satisfy the equation (1) has been described. However, the present invention is not limited to this, and the distances L1 and L2 do not have to satisfy the equation (1), and the spring body 68 of the start / stop lever 66 can be brought into contact with and detached from the regulation ring 37. I just need to be there.

1 ... Mechanical clock, 10 ... Movement, 11 ... Main plate, 12 ... Makishin, 20 ... Round hole wheel (wheel train, rotating body), 20a, 21a, 25a to 28a ... Rotating shaft, 21 ... Square hole wheel (wheel) Rows, rotating bodies, gears), 25 ... 2nd wheel (wheel train, rotating body, gears), 26 ... 3rd wheel (wheel train, rotating body, gears), 27 ... 4th wheel (wheel train, rotating body, gears) Gear), 28 ... Fifth wheel (axle, rotating body, gear), 34 ... Inner carriage (wheel train, rotating body, carriage), 37,237 ... Regulation ring (regulation plate), 37a, 237a ... Outer surface, 37b ... Inner peripheral surface, 37c ... Flat surface, 60, 260, 360, 460 ... Wheel train regulation mechanism, 62 ... Regulation lever (link mechanism), 64 ... Transmission lever (link mechanism), 65 ... Second connecting pin (connection) Axis), 66,266,366,466 ... Start / stop lever, 67,467 ... Start / stop lever body (spring support), 68,268 ... Spring body (regulation part), 68b, 368b ... Tip (tip part), 69 ... Support pin (rotating shaft), 71,371 ... Bending part, 81 ... Ratchet claw (rough surface part), 82 ... Ratchet tooth, 90 ... Gear lever mechanism, 91 ... First gear lever, 92 ... Second gear lever , 102 ... Temp, C1 ... Rotation axis, P1 ... Contact point, S1 ... Straight

Claims (10)

A link mechanism that works in conjunction with the winding stem,
A regulation plate that constitutes a train wheel and rotates around the axis of rotation,
It is provided with a regulation portion that is connected to the link mechanism and is provided so as to be brought into contact with and detach from the regulation plate by performing a rotary motion.
The direction of contact and separation of the regulation portion with respect to the regulation plate is set so as to intersect each of the rotation axis and the straight line connecting the rotation axis and the contact point between the rotation axis and the regulation portion of the regulation plate. ,
The regulation portion is a spring member extending in an arc shape.
In the spring member, the base end portion of the spring member opposite to the tip end portion on the side close to the regulation plate is supported by the spring support.
The support is rotatably provided around a rotation shaft provided on the support, and is connected to the link mechanism via a connecting shaft provided at a position different from the rotation shaft. It is connected and
Let L1 be the distance between the axis of the rotating shaft and the axis of the connecting shaft.
When the distance between the axis of the rotating shaft and the tip of the spring member is L2,
The distance L1 and the distance L2 are
L2> L1
A train wheel regulation mechanism characterized in that it is set to satisfy. The regulation plate is provided on one of a plurality of rotating bodies constituting the train wheel, and has at least one of a circular outer peripheral surface and an inner peripheral surface having a center on the rotation axis of the rotating body. death,
The train wheel regulation mechanism according to claim 1, wherein the regulation portion is provided so as to be movable along the tangential direction of either the outer peripheral surface or the inner peripheral surface of the regulation plate. The train wheel regulation mechanism according to claim 1, wherein the regulation plate is a gear. Any of claims 1 to 3 , wherein a bent portion of the spring member on the side close to the regulation plate is provided with a bent portion bent in a direction away from the regulation plate. The train wheel regulation mechanism described in item 1. Equipped with a rotatably provided carriage
The train wheel regulation mechanism according to any one of claims 1 to 4 , wherein the carriage is rotatably provided and the regulation plate is fixed to the carriage. One of claims 1 to 5 , wherein the regulation plate and the regulation portion are provided with a rough surface portion having a surface roughness coarser than that of other portions at a contact portion with each other. The train wheel regulation mechanism described in. The rough surface portion is claim wherein the setting portion to the regulating plate is formed so that the direction of the resistance which the setting portion from said regulating plate than abutting direction resistor is separated increases 6 The train wheel regulation mechanism described in. The rough surface portion is a ratchet tooth and a ratchet claw.
The train wheel regulation mechanism according to claim 7 , wherein the ratchet teeth are formed on the regulation plate, and the ratchet claws that can engage with the ratchet teeth are formed on the regulation portion. The train wheel adjustment mechanism according to any one of claims 1 to 8.
With the train wheel
The main plate that supports the train wheel and
A movement characterized by being equipped with. A mechanical timepiece comprising the movement according to claim 9.

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