JP5923340B2 - Return spring structure for hand-wound watch, hand-wound mechanism, movement, hand-wound watch and method for assembling hand-wound watch - Google Patents

Description

  The present invention relates to a return spring structure for a hand-winding timepiece, and a hand-winding mechanism, a hand-winding timepiece, a movement, and a method for assembling a hand-winding timepiece having the same.

  In a watch equipped with both a mainspring automatic winding mechanism and a manual winding mechanism (manual winding mechanism), a car (for example, a second transmission wheel) in the middle of a car constituting an automatic winding wheel train from a rotating weight to a square hole wheel. ) Is connected to a wheel train wheel (oscillating round hole wheel or transmission intermediate wheel) constituting the hand winding mechanism. When winding the mainspring with the automatic winding mechanism, the winding by the automatic winding mechanism is avoided to avoid the energy loss caused by turning the wheel between the hand wheel and the rocking round hole wheel In this case, the rotation center shaft of the swinging round hole wheel swings away so that the meshing between the swinging round hole wheel and the second transmission wheel is cut off (for example, patent Reference 1).

  When manual winding (manual winding) is performed by turning the crown around the center axis of the winding stem to wind the mainspring, the swinging round hole wheel that has escaped from the second transmission wheel to the non-engagement position is rotated by the round hole wheel. At the same time, it receives a swing torque in a direction leading to a meshing position where it meshes with the second transmission wheel and tries to mesh with the second transmission wheel. It is known to provide a return spring so that the swinging displacement of the swinging round hole wheel from the non-meshing position to the meshing position is reliably performed (for example, Patent Document 2).

  This return spring of Patent Document 2 (the holding member 83 in FIG. 6 of Patent Document 2) is screwed by a mounting portion (83A) and transmitted by a plate-shaped pressing portion (83B) to press the intermediate wheel in the radial direction. Thus, although there is a function to define the swing position of the center of rotation of the transmission intermediate wheel, it does not define the rotation phase of the transmission intermediate wheel.

  In addition, it has a hand winding mechanism provided with a return spring structure for a hand-wound watch that is temporarily fixed (locked) only by being disposed in a predetermined state at a predetermined position of the mounting recess of the support substrate such as the first receiver. As a hand-wound timepiece, for example, those shown in FIGS. 13 to 16 have been proposed.

  In the hand-winding mechanism 103 of the hand-winding watch 105 shown in FIG. 13, the pinion wheel 112 engaged with the pinion wheel 112 and the ratchet mechanism via the ratchet mechanism 112 along with the rotation of the winding stem 110 in the normal hand movement position in the XA1 direction is also XA1. The round hole wheel 116 is rotated in the XB1 direction according to the rotation of the hand wheel 114 in the XA1 direction, and the swinging round wheel wheel 120 is swung in the XD1 direction and rotated in the XE1 direction. Then, the square hole wheel 130 is rotated in the XG1 direction via the second transmission wheel 122 to wind up the mainspring in the barrel complete. Reference numeral 150 is a first receiver, 152 is a self-winding wheel train receiver, 132 is a square hole screw, and 144 is a spring.

  The automatic winding mechanism (not shown) transmits the reciprocating rotation of the rotary weight to the second transmission wheel 122 as one-way intermittent rotation, intermittently rotates the second transmission wheel 122 in the XJ1 direction, and the square hole wheel 130. Is intermittently rotated in the XG1 direction to wind up the mainspring 142 of the barrel complete 140. If the swinging round hole wheel 120 is engaged with the second transmission wheel 122 immediately after the manual winding, the second transmission wheel 122 moves the swinging round hole wheel 120 when the second transmission wheel 122 rotates in the XJ1 direction. Since the swinging round hole wheel 120 that is engaged with the round hole wheel 116 is rotated in the XD2 direction while being rotated in the XE1 direction, the second transmission wheel 122 and the swinging round hole wheel 120 are disengaged.

  On the other hand, in the case of manual winding in which the winding stem 110 is rotated in the XA1 direction via a crown (not shown), the swinging round hole wheel that has once swung in the XD2 direction and escaped during the operation of the automatic winding mechanism. In the manual winding mechanism 103 of this conventional hand-wound watch 105, the swinging round hole wheel 120 is swung in the XD1 direction so that the 120 can be surely displaced toward the swinging position that meshes with the second transmission wheel 122 again. A return spring or oscillating round hole spring 160 that exerts an elastic force YF1 on the oscillating round hole wheel 120 so as to be biased toward the moving position is provided.

  Here, as can be seen from FIGS. 14 and 15 in addition to FIG. 13, the return spring 160 includes a base end side mounting portion 161 bent in a U shape and a distal end side (movable side) 162 of “U”. And a pressing spring portion 163 extending. The pressing spring portion 163 can be elastically deformed or oscillated in the XH1 and XH2 directions with respect to the distal end side leg portion 162 of “U”. A proximal end side (attachment side) leg portion 164 of “U” or a distal end portion 165 on the proximal end side is formed with a curved locking portion 166 that assists positioning of the return spring 160. This return spring. For example, 160 is disposed in the return spring disposition recess 153 of the first receiver 150, and is positioned by disposing the distal end of the curved locking portion 166 in the small recess 153 a of the recess 153.

  However, in this manual winding mechanism 103, as can be seen from FIG. 16, which is a partially enlarged view in addition to FIG. 15, which is an enlarged explanatory view, the base end side leg portion 164 of the base end side mounting portion 161 is shown. The return spring 160 supported by the receiving end 150 at the end portion or the proximal end portion 165 is the swing displacement force in the XH1 direction with respect to the swing round wheel 120 due to the elastic bending force of the spring portion 163. Is elastically applied to the rocking round hole wheel 120 by a substantially planar engaging portion 168 at the outer edge of the tip portion 167. At this time, the oscillating round hole wheel 120 is actually engaged with the planar engaging portion 168 of the return spring 160 at the tip portions 121a and 121a of the two adjacent tooth portions 121.

  That is, on the one hand, the return spring 160 of the manual winding mechanism 103 actually moves the rocking round wheel 120 in the XD1 direction within the guide hole by the spring force of the spring portion 163. At this time, the oscillating round hole wheel 120 is in a state of being in contact with the engaging portion 168 at the outer edge of the distal end portion 167 of the return spring 160 at the distal end portion of the adjacent two tooth portions 121a and 121a.

  However, the rotational phase taken by the rocking round hole wheel 120 at this time is substantially defined by the direction of the tip engaging portion 168, in other words, the extending direction of the spring portion 163 of the return spring 160. There is a high possibility that the moving wheel 120 will deviate from the desired rotational phase.

  That is, on the one hand, since the square wheel 130 is locked by the coil 144, the rotational position (rotation phase) of the square wheel 134 of the square wheel 130 is automatically defined by the coil 144. Further, as described above, the rotational position (rotational phase) of the swinging round hole wheel 120 is defined by the spring portion 163 of the return spring 160. As a result, it is practically difficult to expect that the vehicle connecting the square hole gear 134 and the swinging round hole wheel 120 will just mesh with both the square hole gear 134 and the swinging round hole wheel 120.

  That is, in the manual winding mechanism 2 of the above-described manual winding timepiece 3, simply placing (dropping) the second transmission pinion 123 causes the square wheel 130 and the oscillating round wheel 120 to be engaged at the same time. As shown in FIGS. 16 and 15, the tooth portion 123 a of the second transmission pinion 123 meshed with the square hole gear 134 meshes with the tooth portion 121 of the swinging round wheel 120. It will be in a state of interfering each other.

  Therefore, in order to incorporate the second transmission pinion 123 into a predetermined position in this state, the swinging round hole wheel 120 is returned to the XD2 direction against the spring force of the return spring 160 in the XH1 direction and swings in that state. It is necessary to turn the round hole wheel 120 to a desired state and fit it in the rotation phase. Therefore, assembly is not easy and takes time to assemble.

JP 2006-258895 A JP2003-279667A (FIG. 6 etc.)

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide a manual winding that can easily assemble a gear that meshes between a rocking round hole wheel and a square hole wheel. An object of the present invention is to provide a timepiece return spring structure, a hand winding mechanism including the timepiece winding structure, a hand winding timepiece, and a method for assembling the hand winding timepiece.

  In order to achieve the above object, the return spring structure for a hand-wound timepiece according to the present invention has the swing round hole wheel in one direction of the swing guide path of the swing round hole wheel with respect to the swing round hole wheel. A spring portion for applying an elastic force for displacing the oscillating ring, and a rotational phase defining portion provided with concavities and convexities that engage with the tooth portion of the oscillating round hole wheel to define the rotational phase of the oscillating round hole wheel.

  In the return spring structure for a hand-wound timepiece according to the present invention, “an elastic force that displaces the swinging round hole wheel in one direction of the swing guide path of the swinging round hole wheel with respect to the swinging round hole wheel is provided. In addition to the fact that the oscillating round hole wheel is surely brought close to the transmission wheel during manual winding, in particular, the “rotating phase of the oscillating round hole wheel is defined. Therefore, when the oscillating round hole wheel is brought close to the transmission wheel, the spring force of the spring part is provided. The rotation phase defining portion can set the rotation round hole wheel to the rotation phase that just meshes with the transmission wheel. Therefore, at the time of assembly, there is a gap between the square hole (tooth) wheel whose rotation phase is defined by the helix and the swing round hole wheel whose rotation phase is defined by the return spring structure for the hand-wound watch of the present invention. When a transmission wheel such as a transmission wheel is arranged, the transmission wheel is simply placed at a position between the square hole (tooth) wheel and the swinging round hole wheel, and the transmission wheel is Tooth) and can be assembled in a state of just meshing with both the wheel and the swinging round hole wheel. Therefore, the assembly can be easily performed.

  The features of the return spring structure for a hand-wound watch according to the present invention are not only used when the assembly is performed manually, but also when the automatic or semi-automatic assembly is performed by an assembly machine. Rapid assembly is possible and production efficiency can be increased.

  In the above, the rotational phase defining portion is formed by a convex portion or a concave portion such as a bent portion as long as it can be provided with irregularities that engage with the teeth of the rocking round hole wheel to define the rotational phase of the rocking round hole wheel. Alternatively, it may be formed by a projection such as a projection. Here, the term “concave / convex” means that one of the concave portion or the convex portion, or the concave portion and the convex portion that engages with the tooth portion of the swing round hole wheel to define the rotational phase of the swing round hole wheel. In both meanings, it is not always necessary to have both the concave portion and the convex portion.

  In the return spring structure for a hand-winding timepiece according to the present invention, typically, the rotational phase defining portion just meshes with the irregularities defined by at least one tooth portion of the swinging round hole wheel. It is the unevenness | corrugation of the shape which prescribes | regulates the rotation phase.

  In that case, it is easy to form the rotational phase defining portion, and the rotational phase defining portion in the form of the projections and depressions can reliably define or set the rotational phase of the oscillating round wheel in a predetermined state. The unevenness constituting the rotational phase defining portion typically engages with two adjacent tooth portions of the swinging round hole wheel to define the rotational phase. The rotation phase may be defined by engaging with each tooth portion (single tooth portion).

  In the return spring structure for a hand-winding timepiece of the present invention, typically, the spring portion and the rotation phase defining portion are integrally formed.

  In that case, the number of parts can be minimized.

  In this case, in the return spring structure for a hand-winding timepiece according to the present invention, typically, the rotational phase defining portion includes a bent portion that is bent so as to form an obtuse angle, and swings on the outer surface of the bent portion. It is configured to fit between two adjacent teeth of the moving round wheel to define the rotational phase of the swinging round wheel.

  In that case, it is easy to form the rotational phase defining portion, and the rotational phase defining portion in the form of the projections and depressions can reliably define or set the rotational phase of the oscillating round wheel in a predetermined state.

  However, in the return spring structure for a hand-wound timepiece according to the present invention, instead of the bent portion, the rotational phase defining portion includes an outer surface protruding in a dome shape, and the oscillating round hole is formed on the outer surface of the dome shape. It may be configured to fit between two adjacent teeth of the vehicle to define the rotational phase of the oscillating round hole wheel.

  In that case, there is little possibility that the shape of the rotational phase defining portion will fluctuate for a long time.

  When the spring portion and the rotational phase defining portion are integrally formed, the rotational phase defining portion defines the rotational phase of the swinging round hole wheel by engaging with the tooth portion of the swinging round hole wheel. As long as it is obtained, it may be a convex portion other than a bent portion or a dome-like protruding portion, a protrusion, a concave portion, or a combination of a concave portion and a convex portion.

  The return spring structure for a hand-wound timepiece of the present invention typically includes a substrate engaging portion configured to be attached to the support substrate by being pressed against a concave portion of the support substrate, such as the first receiver.

  In that case, assembly of the return spring structure for the hand-wound watch (assembly to the support substrate) can be easily performed. The board engaging portion includes, for example, a “U” -shaped bent portion and one leg portion (attachment side leg portion) of the “U”. In this case, the spring portion is an intermediate portion of the other leg portion (movable side leg portion) of “U”, and a rotational phase defining portion is formed at the tip end portion of the other leg portion.

  In the return spring structure for a hand-wound watch according to the present invention, instead of the spring portion and the rotational phase defining portion being integrally formed, the rotational phase defining portion is separate from the spring portion, and the spring portion When it is displaced by receiving the elastic force due to the above, it may be configured to engage with the tooth portion of the swinging round wheel with the unevenness.

  In that case, since the rotational phase defining portion is formed independently of the spring portion, it is easily formed in a desired shape. Further, even when the arrangement position of the spring portion is limited, the rotational phase is easily set or set to a predetermined phase.

  In that case, typically, the said rotation phase prescription | regulation part is rotatably supported with respect to a support substrate. Such a rotational phase base can be, for example, in the form of a jumper that engages between adjacent teeth of a rocking round hole wheel.

In order to achieve the above object, the manual winding mechanism of the present invention includes the above-described manually wound timepiece return spring structure and a winding stem that transmits power to the oscillating round hole wheel.
In order to achieve the above object, the movement of the present invention includes the above-described manually wound timepiece return spring structure and a main plate including the manually wound timepiece return spring.

In order to achieve the above object, the hand-winding timepiece includes the above-described hand-winding timepiece return spring structure and the main plate including the hand-winding timepiece return spring structure.
The method for assembling the hand-winding timepiece according to the present invention is a method for assembling a hand-winding timepiece that assembles a gear meshing between a swinging round hole wheel and a square hole wheel whose rotation phase is defined by a spiral. A spring portion for applying an elastic force to displace the swing round hole wheel in one direction of a swing guide path of the swing round hole wheel with respect to the swing round hole wheel; A step of incorporating a return spring structure for a hand-wound timepiece having a rotation phase defining portion having projections and depressions engaging with a tooth portion of the oscillating round wheel to define the rotation phase of the wheel, and the spring structure And a step of placing a gear meshing with both of the round hole wheel whose rotation phase is defined by the square hole wheel and the square hole wheel.
Therefore, at the time of assembly, there is a gap between the square hole (tooth) wheel whose rotation phase is defined by the helix and the swing round hole wheel whose rotation phase is defined by the return spring structure for the hand-wound watch of the present invention. When a transmission wheel such as a transmission wheel is arranged, the transmission wheel is simply placed at a position between the square hole (tooth) wheel and the swinging round hole wheel, and the transmission wheel is Tooth) and can be assembled in a state of just meshing with both the wheel and the swinging round hole wheel. Therefore, the assembly can be easily performed.

A hand of a preferred embodiment of the present invention having a hand winding mechanism of a preferred embodiment of the present invention provided with a oscillating round hole spring structure as a return spring structure for a hand-wound watch of a preferred embodiment of the present invention. Plane explanatory drawing which showed a part of winding clock. 1 is a cross-sectional view of a part of the hand-winding timepiece of FIG. 1, wherein (a) shows a swinging round hole spring structure and a swinging round hole wheel structure of the hand winding mechanism of the hand-winding timepiece of FIG. Cross-sectional explanatory view showing the second transmission wheel structure, (b) is a cross-sectional explanatory view showing the arrangement state of the swinging round hole spring structure in the manual winding mechanism of the manual timepiece of FIG. ) Is a cross-sectional explanatory view showing a part of the hand-winding timepiece of FIG. FIG. 3 is a perspective explanatory view of the swinging round hole spring structure of FIG. 1. The plane explanatory view which expanded and showed a part of hand-winding timepiece which has a hand winding mechanism provided with the rocking round hole spring structure of FIG. FIG. 3 is an enlarged plan view illustrating the restriction of the rotational phase of the oscillating round hole gear by the oscillating round hole spring structure to a specific phase in the manual winding mechanism of FIG. 1. The restriction of the rotational phase of the oscillating round hole gear by the oscillating round hole spring structure in the manual winding mechanism of FIG. 1 to the specific phase is controlled by the oscillating circle by the oscillating round hole spring structure in the conventional manual winding mechanism of FIG. The expanded plane explanatory view expanded and shown in contrast with positioning of a hole gear. The perspective explanatory drawing of the rocking | rounding round hole spring structure as a return spring structure for manual winding timepieces of another preferable one Example of this invention. According to another preferred embodiment of the present invention, there is provided a hand winding mechanism according to another preferred embodiment of the present invention having a swinging round hole spring structure as a return spring structure for a manually wound timepiece. Furthermore, plane explanatory drawing which showed a part of hand-winding timepiece of another preferable one Example. FIG. 9 is a cross-sectional view of a part of the manually wound timepiece of FIG. 8, and (a) shows a swinging round hole spring structure and a swinging round hole wheel structure of the hand winding mechanism of the manually wound timepiece of FIG. Cross-sectional explanatory view showing the second transmission wheel structure, (b) is a cross-sectional explanatory view showing the arrangement state of the swinging round hole spring structure in the manual winding mechanism of the manual timepiece of FIG. ) Is a cross-sectional explanatory view showing a state in which the swinging round hole spring structure of FIG. 1 is locked at the first receiving opening, and (d) is a cross-sectional explanatory view showing a part of the hand-winding timepiece of FIG. Figure. FIG. 9 is an explanatory perspective view of the swinging round hole spring structure of FIG. 8. FIG. 9 is an explanatory plan view illustrating an enlarged part of a hand-winding timepiece having a hand-winding mechanism including the swinging round hole spring structure of FIG. 8. FIG. 9 is an explanatory plan view similar to FIG. 4, showing an enlarged part of a hand-winding timepiece having a hand-winding mechanism including the swinging round hole spring structure of FIG. 8. Plane explanatory drawing which showed a part of the conventional manual winding timepiece which has the conventional manual winding mechanism provided with the rocking | rounding round hole spring structure as a return spring structure for the conventional manual winding timepiece in the same way as FIG. . FIG. 14 is an explanatory perspective view of the swinging round hole spring structure of FIG. 13. FIG. 14 is an explanatory plan view illustrating an enlarged part of a hand-wound timepiece having a hand-winding mechanism including the swinging round hole spring structure of FIG. 13 in the same manner as in FIG. 4. FIG. 14 is an enlarged plan view illustrating an enlarged positioning state of a swinging round hole gear by a swinging round hole spring structure in the manual winding mechanism of FIG. 13.

  Next, some preferred embodiments of the present invention will be described based on preferred examples shown in the accompanying drawings.

  1 and 2 show a hand winding mechanism 2 according to a preferred embodiment of the present invention having a swinging round hole spring structure 1 as a return spring structure for a hand-wound timepiece according to a preferred embodiment of the present invention. A preferred embodiment of a hand-wound timepiece 3 having a preferred embodiment of the movement 300 of the present invention is shown.

  As can be seen from FIGS. 2A to 2C, the hand-wound timepiece 3 includes a movement 300 including a first receiver 10 and an automatic winding train receiver 7 in addition to the main plate 6 serving as a main support substrate. . An example of the movement 300 (driving body) is a portion obtained by removing a so-called exterior portion (case, glass, hands, etc.) from the hand-wound timepiece 3, and the main spring of the power source and the driving gear (first receiver 10) for moving the hands. , And the like, including a speed adjusting / escape mechanism for controlling the rotational speed of the gear, such as a self-winding wheel train receiver 7 or the like, or the manual winding mechanism 2 and the like, and can be distributed alone. The hand-winding timepiece 3 also includes an automatic winding mechanism (not shown), and is a hand-winding timepiece that can also be automatically wound (an automatic timepiece that can also be manually wound).

  A barrel complete 20 is disposed between the main plate 6 and the first receptacle 10. The barrel complete 20 includes a barrel complete gear 21, a barrel complete 22, a mainspring 23, a square wheel 24, and the like. The spiral mainspring 23 is frictionally engaged with the inner peripheral wall 21a of the barrel gear 21 at the outer peripheral end, and is attached to the barrel full 22 at the inner peripheral end. The square hole wheel 24 is fixed to the barrel 22 with a square hole screw 25 on the back cover side of the first receptacle 10. The barrel complete 22 is supported rotatably on the main plate 6 and the first receptacle 10 via bearing portions 22a and 22b. As can be seen from FIG. 4 which is an enlarged view of a part of FIG. 1 in addition to FIG. 1, reference numeral 26 denotes a spiral, which is an engaging portion 26a and adjacent teeth 24a, It engages between 24a, and controls rotation of the square wheel 24 in the counterclockwise direction (direction in which the mainspring 23 can be unwound). That is, the square wheel 24 is held in a state in which the rotation in the counterclockwise C2 direction is regulated at the intermittent rotation position (intermittent rotation phase) just stopped by the helix 26.

  A winding stem 30 is arranged on the main plate 6 so as to be rotatable around the central axis A in the directions A1 and A2 and to be able to enter and exit in the directions A3 and A4 in parallel with the extending direction of the central axis A. A pinion wheel 32 is fitted to the prism 31 of the winding stem 30 so as to be rotatable integrally with the winding stem 30 in the A1 and A2 directions. When the chimney 34 is fitted to the cylindrical portion 33 of the winding stem 30 and the winding stem 30 is in the normal hand movement position P1 pushed in the A4 direction, the opposing ratchet gear portion of the chiseling wheel 34 and the pinion wheel 32 is located. When 34a and 32a mesh and the winding stem 30 is rotated in the A1 direction, the pinion wheel 32 and the chisel wheel 34 are also rotated in the A1 direction. In addition, when the winding stem 30 rotates in the A2 direction, the rotation of the hour wheel 32 in the A2 direction is not transmitted to the hour wheel 34, and idle rotation occurs between the hour wheel 32 and the hour wheel 34.

  Between the first receiver 10 and the automatic wheel train receiver 7, the most part of the manual winding mechanism 2 or the main winding mechanism main body 4 is arranged.

  The manual winding mechanism main body 4 includes a round hole wheel structure 40, a swinging round hole wheel structure 50, a swinging round hole spring structure 1 as a return spring structure for a hand-wound watch, and a second transmission wheel structure. And a body 70.

  As shown in FIG. 2C and FIG. 1, the round hole wheel structure 40 is the most concentric with the lower round hole wheel 41 and the lower round hole wheel 41 located on the base plate 6 side of the first receiver 10. On the side of the automatic wheel train receiver 7 of the receiver 10, there is an upper round hole wheel 42 positioned in the recess 11. The lower and upper round hole wheels 41 and 42 can rotate integrally around the common central axis B in the directions B1 and B2. The lower round hole wheel 31 meshes with the outer peripheral gear portion 34b of the chisel wheel 34, and when the hour wheel 32 and the chime wheel 34 are rotated in the A1 direction as the winding stem 30 rotates in the A1 direction, the lower round wheel The wheel 41 is rotated in the B1 direction, and the upper round wheel 42 is also integrally rotated in the B1 direction.

  The swinging round hole wheel structure 50 includes a bearing portion 51, a shaft portion 52, and a swinging round hole gear portion 53. The bearing portion 51 is configured to be swingable in the extending direction or the longitudinal directions D1 and D2 of the arc-shaped long hole 19 (FIG. 1) formed in the thin-walled portion 12 in the concave portion 11 of the first receiver 10. 19 is loosely fitted. This circular arc forms part of a circle centered on the central axis B. The bearing 51 includes a cylindrical bearing body 51a that is loosely fitted in the long hole 19, and a flange-shaped portion 51b that is formed at one end of the bearing body 51a on the ground plate 6 side of the thin portion 12 of the first receiver 10. With. The shaft portion 52 includes a cylindrical shaft main body portion 52a fitted in the cylindrical bearing main body portion 51a of the bearing portion 51 so as to be slidably rotatable around the central axis E in the directions E1 and E2, and the shaft main body. And a large diameter portion 52b located on one end side of the portion 52a. The large diameter portion 52 b is located on the ground plate 6 side of the flange-like portion 51 b of the bearing portion 51. A swinging round hole gear portion 53 is fitted to the end portion of the shaft main body portion 52a on the side of the automatic winding train wheel bridge 7. That is, the swinging round hole wheel structure 50 includes a large diameter part 52b on one end side of the shaft part 52, a flange-like part 51b of the bearing part 51, and a swinging round hole gear part 53 on the other end side of the shaft part 52. In a state of being sandwiched, it is loosely fitted into the arc-shaped elongated hole 19 of the first receiver 10 through the bearing portion 51.

  Therefore, the rocking round hole wheel structure 50 includes the meshing position Q1 where the main body 51a of the bearing 51 to which the main body 52a of the shaft 52 is fitted is biased in the D1 direction, and the main body 51a of the bearing 51 in the D2 direction. It is possible to swing in the directions D1 and D2 between the non-meshing position Q2 biased in the direction.

  As will be described in detail later, the oscillating round hole wheel structure 50 receives an elastic biasing force F1 in the D1 direction by the oscillating round hole spring structure 1 as a return spring structure for a hand-wound timepiece.

  The second transmission wheel structure 70 includes a shaft portion 73 that is supported by a bearing portion 71 of the first receiver 10 and a bearing portion 72 of the automatic wheel train receiver 7 so as to be rotatable around the central axis J in the J1 and J2 directions. And a second transmission gear portion 74 and a second transmission pinion portion 75 attached to the shaft portion 73. The second transmission gear portion 74 is meshed with a train wheel (not shown) of an automatic winding mechanism (not shown), and the second pinion portion 75 is meshed with the square wheel 24. Accordingly, the second transmission wheel structure 70, on the other hand, transmits the rotation of the automatic winding wheel train (not shown) accompanying the rotation of a rotating weight (not shown) to the square wheel 24 and passes through the square wheel 24. Automatic winding of the mainspring 23 is enabled.

  When the oscillating round hole wheel structure 50 is oscillated to the position Q1 biased in the D1 direction, the oscillating round hole wheel portion 53 of the oscillating round hole wheel structure 50 is the second transmission wheel structure 70. When the second transmission gear portion 74 is rotated in the J1 direction by the operation of an automatic winding mechanism (not shown), the swinging round hole wheel structure 50 receives the E1 direction rotational force. While swinging so as to escape in the direction D2, it moves to the separation position Q2, and the swing round hole gear portion 53 of the swing round hole wheel structure 50 and the second transfer pinion portion 75 of the second transfer wheel structure 70, Will be cut off.

  Here, as can be seen from FIGS. 1 and 3, the spring member 60 formed of a punched bent body of a spring-like alloy plate constituting the swinging round hole spring structure 1 as a return spring structure for a hand-wound timepiece can be seen. , A proximal end side mounting portion 61 bent in a U-shape and a pressing spring portion 63 extending from the distal end side (movable side) leg portion 62 of “U”. The pressing spring portion 63 can be elastically deformed or swingable in the H1 and H2 directions with respect to the distal end side leg portion 62 of “U”. The distal end portion 65 of the base end side (mounting side) 64 of “U” is formed with a curved locking portion 66 that assists in positioning of the spring member 60. This spring member 60 can be seen from FIG. In addition, it is disposed in the return spring disposition recess 13 of the first receiver 10 and is positioned by disposing the tip of the curved locking portion 66 in the small recess 13 a of the recess 13.

  The spring member 60 displaces the wheel 53 in one direction D1 of the arc-shaped elongated hole 19 that forms the swing guide path of the wheel 53 with respect to the swing round hole gear portion 53 of the swing round hole wheel structure 50. In addition to the pressing spring portion 63 that applies the elastic force, a bent portion 67 as a rotational phase defining portion that is bent at an obtuse angle so as to form an unevenness that engages with the tooth portion 54 of the oscillating round hole gear portion 53 is provided. The corner portion 67c of the bent portion 67 fits between two adjacent tooth portions 54, 54, and the inner edges 54a, 54b of the adjacent tooth portions 54, 54 on the outer surfaces 67a, 67b of the bent portion 67. Is engaged to hold the oscillating round hole gear portion 53 at a specific rotational position (rotation phase) φ1 to define the rotational phase of the oscillating round hole gear portion 53.

  Assembling or assembling of the second transmission wheel structure 70 in the hand-winding timepiece 3 having the hand-winding mechanism 2 having the swinging round-hole spring structure 1 configured as described above, in addition to FIGS. This will be described in more detail with reference to FIGS.

  After the wheel train other than the second transmission wheel 70 related to the automatic winding train wheel in the manual winding mechanism 2, that is, the round hole wheel structure 40 and the swinging round hole wheel structure 50 are first assembled in the receiver 10, In a state before the setting wheel 70 (and other automatic winding train) is assembled, the rotation phase of the square hole gear 24 around the central axis C allows the C1 direction rotation around the center C and the C2 direction rotation. Is set to a specific position or a specific phase ψ1 by the screw 26.

  In this state, the spring member 60 constituting the oscillating round hole spring structure 1 is placed in the recess 13 of the first receiver 10 so that the engagement end 66 is fitted and locked in the small recess 13 a of the recess 13. Fit. At that time, in the spring member 60, the engagement portion 66 is locked in the small recess 13 a, so that the U-shaped base end side mounting portion 61 is locked and held in the recess 13. In this holding state, as shown in FIGS. 4 to 6, the spring member 60 has the tip 67 c of the bent portion 67 of the swinging round hole gear 53 under the action of the elastic force in the H1 direction of the spring 63. The bent portion 67 is swung so that the outer surfaces 67a, 67b of the bent portion 67 come into contact with the adjacent side edges 54a, 54b of the swung adjacent tooth portions 54, 54. Press against the round hole wheel 53 in the H1 direction. Here, the H1 direction is generally defined by the extending direction of the spring portion 63 of the spring member 60. That is, the H1 direction is substantially perpendicular to the extending direction of the spring portion 63 of the spring member 60 and substantially coincides with the extending direction D1 direction of the arc-shaped elongated hole portion 19. Therefore, the spring member 60 displaces the oscillating round hole gear 53 to the position Q1 in the D1 direction by the spring force F1. Moreover, in the spring member 60, the distal end portion 67c of the bent portion 67 enters between the adjacent tooth portions 54 and 54 of the swinging round hole gear 53, and the outer surfaces 67a and 67b of the bent portion 67 are swinging adjacent tooth portions. Since the oscillating round hole gear 53 is in contact with the adjacent side edges 54 a and 54 b of the 54 and 54, the specific rotation of the toothed portion 54 is defined by the outer surfaces 67 a and 67 b of the bent portion 67 of the spring portion 60. Positioned at position Q1 at phase φ1.

  Therefore, in the state before the second transmission wheel 70 is assembled, the square hole gear 24 and the swinging round hole gear 53 are respectively set to a specific rotational phase φ1 defined by the helix 26 and the bent portion 67 of the spring member 60. , Ψ1.

  In this state, between the square hole gear 24 and the oscillating round hole gear 53, the tooth portion of the second transmission pinion 75 of the second transmission wheel 70 meshes with the square hole gear 24 at a predetermined rotational phase ψ1, for example. By simply dropping the second transmission pinion 75 of the second transmission wheel 70, the second transmission pinion 75 just meshes with the oscillating round hole gear 53 in the predetermined rotational phase φ1. Therefore, the second transmission wheel 70 can be easily assembled. Further, when the swinging round hole wheel 50 once swinging to the separation position Q2 swings to the meshing position Q1, it can be surely engaged with the second transmission pinion 75.

  As shown by the imaginary line in FIG. 6, in the conventional spring member 160 of the swinging round hole spring, the portion up to the spring portion 163 is formed in the same manner as the spring member 60, but the tip portion 167 is actually formed. Since it is formed so as to have an upper flat outer surface 168, the outer surface 168 engages with the front end portions 54 c and 54 c of the adjacent tooth portions 54 and 54 of the swinging round hole gear 53, so that the swinging round hole gear. 53 is positioned at the rotational phase φp indicated by an imaginary line in FIG. That is, this rotational phase φp is actually defined by the extending direction of the spring portion 163 of the spring member 160, and unlike the specific rotational phase φ 1, the tooth portion 54 of the oscillating round hole gear 53 transmits the second number 75. It will interfere with this, without meshing with the tooth part 76 of this. That is, in the case of the spring member 60 having the bent portion 67, unlike the spring member 160 having the end portion 167 having the planar outer surface 168, the rotational phase of the oscillating round hole gear 53 is set to φ1 instead of φp. Therefore, the assembly of the second transmission kana 75 can be easily performed.

  As long as the rotational phase defining portion can engage with the tooth portion 54 of the oscillating round hole gear 53 and define the rotational phase φ of the oscillating round hole gear 53 to a predetermined phase φ 1, the rotational phase defining portion is replaced with the bent portion 67. Others may be used.

  FIG. 7 shows an oscillating round hole spring structure 1A as a return spring structure for a hand-wound timepiece in the form of a spring member 60A having a rotational phase defining portion composed of a dome-shaped projecting portion 67A. Regarding the elements of the spring member 60A of FIG. 7, the same elements as those of the spring member 60 shown in FIG. 3 are denoted by the same reference numerals, and correspond to the elements of the spring member 60 but different. A suffix A is added after the symbol.

  In the spring member 60A, the dome-shaped protrusion 67A serves as a substitute for the bent portion 67, and the curved side edges 67aA and 67bA of the dome-like protruded portion 67A serve as substitutes for the outer surfaces 67a and 67b of the bent portion 67, respectively. Since it is clear that it works, a detailed explanation is omitted.

  The vertical cross-sectional shape of the dome-shaped protrusion 67A is typically semicircular, but the curvature radius may be smaller toward the top instead of having a constant curvature radius. The cross-sectional shape of the dome-shaped protrusion 67A is typically circular, but instead of having a constant curvature radius, the side edges 54a and 54b of the teeth 54 and 54 of the oscillating round hole gear 53 and The radius of curvature of the abutting part may be larger or smaller than the radius of curvature of the other part.

  The swinging round hole spring structure as the return spring structure for the hand-wound timepiece is preferably formed with a structure that is easier to attach to the support substrate and more stable in the attached state.

  8 and 9 (a) to 9 (d) show the present invention provided with a swinging round hole spring structure 1B as a return spring structure for a hand-wound watch according to another preferred embodiment of the present invention. Another preferred embodiment of the hand winding watch 3B of the present invention having another preferred embodiment of the hand winding mechanism 2B is shown. FIG. 10 shows an oscillating round hole spring structure 1B used in the manual winding mechanism 2B of the manual winding timepiece 3B. FIG. 11 shows an example of a manual winding mechanism 2B including the oscillating round hole spring structure 1B. It is shown enlarged.

  8 to 11, the same reference numerals are given to the same elements as those of the hand-winding timepiece 3 shown in FIGS. 1 to 6, and the elements correspond to the elements of the hand-winding timepiece 3. However, a different element has a suffix B after the corresponding code.

  Before describing in detail the swinging round hole spring structure 1B as the return spring structure for a hand-wound watch, the portion of the first receiver 10B where the swinging round hole spring structure 1B is disposed will be described. .

  The first receptacle 10B includes a swinging round hole spring disposing recess 13B connected to the recess 11 by a region 10a. A planar bottom portion 14 and convex portions 15a and 15b protruding from the bottom portion 14 are formed on the bottom surface portion 13h of the recess 13B. An opening 16 is formed in the locking plate-like portion 13b that is slightly separated from the bottom surface portion 13h. As shown in FIG. 9 (c) in addition to FIG. 8, the opening 16 penetrates the locking plate-like portion 13b, forms the plate-like portion 13b, and defines the opening 16 and the front side of the wall portion 13e. The back surface 13c is connected to the back surface, that is, the back surface 13d.

  As shown in FIG. 10, the spring member 80 made of a punched bent body of a spring alloy plate constituting the swinging round hole spring structure 1B as a return spring structure for a hand-wound watch is mounted in a plate shape. It has a portion 81, a pushing hook spring portion 82, a positioning spring portion 83, and a return spring portion 84.

  The plate-like placement portion 81 includes a flat plate-like main body portion 81a, and positioning openings 81b and 81c are formed in the flat plate-like main body portion 81a. As shown in FIGS. 9A to 9C in addition to FIG. 8, the spring member 80 has a flat plate-like main body portion 81 a constituting the plate-like placement portion 81 on the back surface 81 d and the concave portion 13 </ b> B of the receiver 10 </ b> B. Is placed on the bottom surface portion 13h of the concave portion 13B so that the convex portions 15a, 15b of the bottom portion portion 14 are fitted into the positioning openings 81b, 81c of the flat plate-like main body portion 81a. .

  The pushing hook spring portion 82 has a pushing hook spring arm portion 85 and a pushing locking end portion 86. The hook spring arm portion 85 is connected to one side edge portion 81e of the flat plate-like main body portion 81a at the base end portion 85a, and a base end side arm portion 85b extending from the base end portion 85a and a base end side arm portion 85b. The distal end portion 85c includes a distal end side arm portion 85d that bends and extends substantially at a right angle. The push-in locking end portion 86 includes a locking protrusion 86a that extends in the lateral direction with respect to the distal end side arm portion 85d at the distal end portion of the distal end side arm portion 85d. An oblique guide surface 86b that functions as a push guide inclined surface is formed on the lower edge side of the locking projection 86a, and a generally laterally extending lock surface 86c that functions as a push lock surface is formed on the upper side. . The proximal-side arm portion 85b and the distal-side arm portion 85d are pushed when the openings 81b and 81c of the plate-like placement portion 81 are fitted to the convex portions 15a and 15b of the flat bottom portion 14 of the concave portion 13B. The locking projection 86a that forms the locking end 86 has such a length that it just faces the opening 16 of the plate-like portion 13b.

  The positioning spring portion 83 includes a positioning spring arm portion 83a and a push-in engagement end portion 87. The positioning spring portion 83 is located on the opposite side to the side from which the locking protrusion 86a that constitutes the pressing locking end portion 86 of the pressing hook spring portion 82 protrudes. The positioning spring arm portion 83a is connected to the side edge portion 81e of the flat plate-like main body portion 81a at the base end portion 83b, and extends in parallel with the base end side arm portion 85b of the pushing hook spring arm portion 85 from the base end portion 83b. It consists of the base end side arm part 83c. The pushing engagement end portion 87 is composed of a distal end side arm portion 87a extending at a right angle at a distal end portion 83d of the proximal end side arm portion 83c. The pushing engagement end portion 87 has a curved inclined guide surface 87c at the distal end portion at one side edge 87b opposite to the side facing the distal end side arm portion 85d of the pushing hook spring portion 82. The proximal-side arm portion 83c is a push-in engagement end on the distal end side when the openings 81b and 81c of the plate-like mounting portion 81 are fitted into the convex portions 15a and 15b of the flat bottom portion 14 of the concave portion 13B. The distal end side arm portion 87a forming the portion 87 has such a length that it faces the edge portion 16a on the near side of the opening 16 of the plate-like portion 13b and the edge portion 16b on the opposite side to the side on which the pushing hook spring arm portion 85 is located. Have.

  In a state before the oscillating round hole spring structure 1B is first assembled into the recess 13B of the receiver 10B, the outer side edge 85f of the front end side arm portion 85d of the pushing hook spring portion 82 and the front end side of the positioning spring portion 83 are arranged. The distance between the pushing engagement end portion 87 and the outer side edge 87 b is slightly larger than the width of the opening 16.

  The return spring portion 84 is adjacent to the side edge 81e of the flat plate-like main body portion 81a that forms the plate-like placement portion 81, and on the side edge 81f opposite to the side from which the protruding portion 86a of the pushing hook spring portion 82 protrudes. The connected return spring arm portion 88 and a bent portion 89 as a rotation phase defining portion bent at an obtuse angle so as to form an unevenness that engages with the tooth portion 54 of the oscillating round hole gear portion 53 are provided.

  The return spring arm portion 88 is connected to the side edge 81f of the flat plate-like main body portion 81a, and is bent at a substantially right angle with respect to the side edge 81f, and the push-pushing spring portion 82 from the base end portion 88a. And the return spring arm main body portion 88b extending in a plane substantially parallel to the proximal end arm portion 85b of the hook spring arm portion 85 and the positioning spring arm portion 83a of the positioning spring portion 83. The return spring arm main body portion 88b includes a base side return spring arm main body portion 88c and a distal end side return spring arm main body portion 88d that are bent in the extending surface so that the length of the arm can be secured to reduce the spring constant. Have.

  Since the bent portion 89 is connected to the distal end side of the distal-side return spring arm main body portion 88d of the return spring arm main body portion 88b, positioning is performed when the return spring portion 84 is elastically bent in the H2 and H1 directions. The spring portion 83 and the push-and-push spring portion 82 can be closely spaced.

  The bent portion 89 serving as the rotational phase defining portion is configured such that the corner portion 89c of the bent portion 89 fits between two adjacent tooth portions 54 and 54, and the outer teeth 89a and 89b of the bent portion 89 have adjacent teeth. Engage with the inner edges 54a, 54b of the portions 54, 54 to hold the rocking round hole gear portion 53 at a specific rotation position (rotation phase) φ1 and define the rotation phase of the rocking round hole gear portion 53. It is configured as follows. Therefore, when the return spring portion 84 is elastically bent in the H2 and H1 directions, the corner portion 89c of the bent portion 89 has two adjacent tooth portions under the action of the elastic force of the return spring portion 84 in the H1 direction. 54, 54, and the outer surfaces 89a, 89b of the bent portion 89 are engaged with the inner edges 54a, 54b of the adjacent tooth portions 54, 54 so that the swinging round hole gear portion 53 is moved to a specific rotational position. (Rotation phase) The rotation phase of the oscillating round hole gear portion 53 is defined while being held at φ1.

  Here, for convenience of explanation, the reference numerals that are not related to the bent portion 67 of the spring member 60 of the oscillating round hole spring structure 1 are used for the bent portion 89 of the spring member 80 of the oscillating round hole spring structure 1B. Although used, the bent portion 89 of the spring member 80 of the swinging round hole spring structure 1B has a shape that is practically the same as that of the bent portion 67 of the spring member 60 of the swinging round hole spring structure 1. The outer side surfaces 89a and 89b correspond to the outer side surfaces 67a and 67b, and the bent convex portion (projecting portion) or the corner portion 89c corresponds to the bent convex portion (projecting portion) or the corner portion 67c.

The swinging round hole spring structure 1B as the manual winding return spring structure with improved mounting stability is in a state before the automatic winding train wheel bridge 7 is assembled, and is the first receiver 10B. In a state in which a wheel other than the second transmission wheel 70 is incorporated in the train wheel constituting the manual winding mechanism 2, the spring member 80 as the swinging round hole spring structure 1 </ b> B is formed in a flat plate shape of the plate mounting portion 81. The plate-like mounting portion 81, the pushing hook spring portion 82, and the positioning spring portion in a state where the openings 81b, 81c of the main body portion 81a are arranged at predetermined positions so as to fit into the convex portions 15a, 15b of the concave portion 13B of the receiver 10B. When a region including 83 (area of about several mm ² ) is pushed in with a fingertip or the like, the opening portions 81b and 81c of the plate-like mounting portion 81 and the convex portions 15a and 15b of the first receiver 10B are generally fitted. Positioning spring of positioned swinging round hole spring structure 1B The push-in engagement end portion 87 of 83 is pushed into the opening 16 along the edges 16a and 16b of the opening 16 in the M1 direction, and the push-in latching spring portion 82 of the swinging round hole spring structure 1B is pushed in. End 86 is also pushed along the edge of opening 16. Here, when pushing in along the side edge of the opening 16 of the push-in locking end portion 86 of the push-in hook spring portion 82, the push-in locking end portion 86 is pushed in along the inclined guide surface 86b on the front edge side. When the locking projection 86a reaches the back surface 13d of the wall 14 defining the opening 16, the locking surface 86c of the push-in locking end 86 is The state comes into contact with the back surface 13d. At this time, the locking surface 86c of the pressing locking end portion 86 is the back surface of the wall portion 14 due to the elastic force that the hooking spring arm portion 85 of the pressing hooking spring portion 82 that is somewhat curved in the M1 direction returns to the M2 direction. Pressed against 13d. Further, since the side edge 87b of the pushing engagement end portion 87 of the positioning spring portion 83 receives a force in the T1 direction from the edge portion 16b of the opening 16, the side edge portion 85f with the pushing locking end portion 86 is also opened in the T1 direction. It is pressed against 16 opposite side edges. As a result, even if an unexpected external force is applied, the push-in locking end portion 86 can be held in a state where there is little risk of detachment from the wall portion 13e of the opening 16.

  In the manual winding timepiece 3B having the manual winding mechanism 2B in a state where the stable placement of the swinging round hole spring structure 1B is completed as described above, the manual winding mechanism 2 including the swinging round hole spring structure 1 is provided. In the same manner as in the case of the hand-wound timepiece 3 having the same, the bent protrusion 89 c of the bent portion 89 is adjacent to the adjacent tooth portion 54 of the swinging round hole gear 53 under the action of the elastic force in the H1 direction of the spring portion 88. 54, and the bent portion 89 is swung round hole wheel 53 so that the outer surfaces 89a, 89b of the bent portion 89 abut against the adjacent side edges 54a, 54b of the swing adjacent tooth portions 54, 54. Press in the H1 direction. The H1 direction is generally defined by the extending direction of the spring portion 88 of the spring member 80, and substantially coincides with the extending direction D1 direction of the arc-shaped elongated hole portion 19, and the spring member 80 is swung by the spring force F1. The round hole gear 53 is displaced to the position Q1 in the D1 direction. In the spring member 80, the tip 89c of the bent portion 89 enters between the adjacent tooth portions 54, 54 of the swinging round hole gear 53, and the outer surfaces 89a, 89b of the bent portion 89 are the swinging adjacent tooth portions 54, 54. 54 is in contact with the adjacent side edges 54a and 54b of the 54, the swinging round hole gear 53 has a tooth portion 54 whose specific rotational phase φ1 is defined by the outer surfaces 89a and 89b of the bent portion 89 of the spring portion 80. To position Q1.

  on the other hand. As described above, in the state before the second transmission wheel 70 (and other automatic winding train) is assembled, the rotational phase around the central axis C of the square hole gear 24 is the rotation in the C1 direction around the center C. The specific position or the specific phase ψ1 is set by the allowance 26 to permit and prohibit the rotation in the C2 direction.

  Accordingly, in the state before the second transmission wheel 70 is assembled, the square hole gear 24 and the swinging round hole gear 53 are respectively set to a specific rotational phase φ1 defined by the helix 26 and the bent portion 67 of the spring member 80. , Ψ1.

  In this state, between the square hole gear 24 and the oscillating round hole gear 53, the tooth portion of the second transmission pinion 75 of the second transmission wheel 70 meshes with the square hole gear 24 at a predetermined rotational phase ψ1, for example. By simply dropping the second transmission pinion 75 of the second transmission wheel 70, the second transmission pinion 75 just meshes with the oscillating round hole gear 53 in the predetermined rotational phase φ1. Therefore, the second transmission wheel 70 can be easily assembled. Further, when the swinging round hole wheel 50 once swinging to the separation position Q2 swings to the meshing position Q1, it can be surely engaged with the second transmission pinion 75.

  The return spring structure for a hand-winding timepiece may be composed of a plurality of members instead of a single member.

  FIG. 12 shows still another preferred embodiment of the manual winding of the present invention having a rocking round hole spring structure 1C as a return spring structure for a hand-winding timepiece of another preferred embodiment of the present invention. Yet another preferred embodiment of a hand-wound watch 3C having a mechanism 2C is shown.

  12, the same elements as those of the hand-winding timepiece 3 shown in FIGS. 1 to 6 are denoted by the same reference numerals, and correspond to the elements of the hand-winding timepiece 3 but are different. A subscript C is added to a certain element after the corresponding code.

  In the hand-wound timepiece 3C and the hand-winding mechanism 2C, the hand-wound timepiece 3 and the hand-wound timepiece return mechanism are composed of the swinging round hole spring structure 1C instead of the swinging round hole spring structure 1. Unlike the manual winding mechanism 2, it is configured similarly to the manual winding timepiece 3 and the manual winding mechanism 2 in other respects.

  In the hand-winding timepiece 3C, a swinging round hole spring structure 1C as a hand-winding timepiece return spring structure includes a swinging round hole spring body 60C and a swinging round hole jumper 90.

  The oscillating round hole spring main body 60C lacks a rotational phase defining portion at the tip of the spring portion 63, and a jumper pressing portion 68 is integrally formed instead of the bent portion 67 as the rotational phase defining portion. Unlike the oscillating round hole spring 60, the other points are practically the same as the oscillating round hole spring 60. In addition, the width | variety, opening angle, etc. of the U-shaped base 61 may differ according to the difference in arrangement | positioning position (distance) and direction. The jumper pressing portion 68 extends substantially linearly, and extends substantially linearly from the spring portion 63 except for a bending portion 68a for imparting rigidity at the tip. However, as a shape, a bent portion 67 (bent) may be provided with a protruding portion similar to the tip protruding portion 67c.

  The swinging round hole jumper 90 is in the form of a lever body 91, and is supported on the most receiving 10C so as to be rotatable in the K1 and K2 directions around the central axis K of the rotation shaft 93 at the base end portion 92 of the lever body 91. Has been. The lever body 91 includes a pressed portion 95 on one side of the distal end portion 94 and a claw portion 96 as a rotation phase defining portion on the other side. The claw portion 96 includes engagement side surface portions 96a and 96b on both sides of the protruding tip end portion 96c. Therefore, when the lever body 91 is pressed in the H1 direction by the swinging round hole spring main body 60C at the pressed portion 95 of the tip portion 94, the lever body 91 is rotated in the K1 direction, and the claw portion 96 of the tip portion 94 is moved in the K1 direction. The claw portion 96 protrudes between the adjacent tooth portions 54 and 54 of the swinging round hole gear 53, and the claw portion 96 has side surface portions 96a and 96b and side edge portions 54a and 54b of the adjacent tooth portion 54. In a state in which the oscillating round hole gear 53 is engaged and regulated to a predetermined rotational phase φ1, it is pushed along the elongated hole 19 to the position Q1 in the D1 direction.

  In this state, when the second transmission pinion 75 of the second transmission wheel 70 is dropped, the second transmission pinion 75 has a square hole gear 24 in the predetermined rotational phase cloth ψ1 and an oscillating round hole gear 53 in the predetermined rotational phase φ1. The second transmission wheel 70 including the second transmission pinion 75 can be easily assembled, and the swinging round hole gear 53 swings in the direction D1 during manual winding. Each time the swinging round hole gear 53 is reliably engaged with the second transmission pinion 75, the manual hoisting torque can be reliably transmitted to the square wheel 24 as in the case described above.

In the above, the rotational phase defining portion of the return spring structure for the hand-wound watch fits between the two adjacent teeth 54, 54 of the oscillating round hole gear 53 to change the rotational phase φ of the oscillating round hole gear 53. Although an example in which the predetermined phase φ1 is defined has been described, the swinging round shape of the tooth 54 of the swinging round hole gear 53 is utilized under the action of the spring force in the H1 direction of the spring portion of the return spring structure for the manual winding timepiece. As long as the rotation phase φ of the hole gear 53 can be set to the predetermined phase φ1, the manner of engagement of the rotation phase defining portion with the swinging round hole gear 53 may be different. For example, even if it engages with respect to the single tooth | gear 54, you may engage so that it may become a specific relative direction with respect to several teeth.
The embodiments described above do not limit the invention according to the claims. And not all the combinations of the configurations described in the above embodiment are indispensable means for solving the problems of the invention.

1,1A, 1B, 1C Swing round hole spring structure (Return spring structure for hand-wound watch)
2, 2B, 2C Manual winding mechanism 3, 3B, 3C Manual winding clock 4, 4B Manual winding mechanism main body part 6 Base plate 7 Automatic winding train wheel receiver 10, 10B First receiver 10a Region 11 Recess 12 Thin wall part 13, 13B Oscillation Round hole spring arrangement recess 13a Small recess 13b Locking plate-like portion 13c Front side 13d Back side (back)
13e Wall part 13h Bottom part 14 Flat bottom part 15a, 15b Convex part 16 Opening 16a, 16b Edge part 19 Arc-shaped slot 20 Compensation wheel 21 Compensation wheel gear 21a Inner peripheral wall 22 Compensation box true 22a, 22b Bearing part 23 Mainspring 24 Square hole Wheel 25 Square-hole screw 26 Collar 30 Winding stem 31 Square column portion 32 Stitch wheel 32a, 34a Ratchet gear portion 33 Column-shaped portion 34 Hook wheel 34b Outer gear portion 40 Round-hole vehicle structure 41 Lower round-hole vehicle 42 Upper round-hole vehicle 50 Oscillating round hole wheel structure 51 Bearing part 51a Bearing body part 51b Flange-like part 52 Shaft part 52a Shaft body part 52b Large diameter part 53 Oscillating round hole gear part 54 Tooth parts 54a, 54b Side edges 60, 60A, 80 Spring member 60C Oscillating round hole spring main body 61 Base end side mounting portion 62 Front end side (movable side) leg portion 63 Pressing spring portion 64 Base end side (mounting side) leg portion 65 Front end portion 66 Curved Stop portion 67 bent portion (rotation phase defining portion)
67a, 67b Outer side surface 67c Tip (bending protrusion)
68 Jumper pressing part 68a Bending part 70 for imparting rigidity Second transmission wheel structure 71, 72 Bearing part 73 Shaft part 74 Second transmission gear part 75 Second transmission pinion part 81 Plate-like mounting part 81a Flat plate-like body part 81b, 81c Opening part 81d Back surface 81e, 81f Side edge part 82 Pushing hook spring part 83 Positioning spring part 83a Positioning spring arm part 83b, 85a Base end part 83c Base end side arm part 83d, 85c Tip part 84 Return spring part 85 Pushing hook spring Arm portion 85b Base end side arm portion 85d Front end side arm portion 85f, 87b Side edge 86 Pressing locking end portion 86a Locking projection portion 86b Inclination guide surface (indentation guide inclined surface)
86c Locking surface 87 Push-in engagement end portion 87a Tip side arm portion 87c Curved inclined guide surface 88 Return spring arm portion 88a Base end portion 88b Return spring arm main body portion 88c Base side return spring arm main body portion 88d Tip side return spring arm main body Part 89 Bent part (rotation phase defining part)
89a, 89ab outer side 89c tip (protrusion)
90 Swing round hole jumper 91 Lever body 92 Base end portion 93 Rotating shaft 94 Tip portion 95 Pressed portion 96 Claw portion 96a, 96b Engagement side surface portion 96c Tip portion 300 Movement φ Phase φ1, φ1 Predetermined (specific) phase A , B, E, J, K Center axis A1, A2, B1, B2, E1, E2, J1, J2, K1, K2 Rotating direction A3, A4 Translation direction D1, D2 Longitudinal direction (oscillating direction)
F1 Elastic biasing force H1, H2 Bending (swinging) direction M1, M2 direction P1 Normal hand movement position Q1 Engagement position Q2 Non-engagement position T1 direction

Claims (11)

A spring portion for applying an elastic force to displace the swing round hole wheel in one direction of the swing guide path of the swing round hole wheel with respect to the swing round hole wheel;
A rotation phase defining portion having irregularities that engage with a tooth portion of the rocking round hole wheel to define the rotation phase of the rocking round hole wheel,
The spring part and the rotational phase defining part are integrally formed,
The rotational phase defining portion includes a bent portion that is bent so as to form an obtuse angle, and is fitted between two adjacent tooth portions of the swinging round wheel on the outer surface of the bent portion. A return spring structure for a hand-winding timepiece configured to define the rotational phase of a round hole wheel. A spring portion for applying an elastic force to displace the swing round hole wheel in one direction of the swing guide path of the swing round hole wheel with respect to the swing round hole wheel;
A rotation phase defining portion having irregularities that engage with a tooth portion of the rocking round hole wheel to define the rotation phase of the rocking round hole wheel,
The spring part and the rotational phase defining part are integrally formed,
The rotational phase defining portion includes an outer surface protruding in a dome shape, and the dome-shaped outer surface is fitted between two adjacent teeth of the oscillating round wheel, A return spring structure for a hand-winding timepiece configured to define a rotational phase.   3. The unevenness of a shape that defines the rotational phase of the oscillating round hole wheel by precisely engaging the undulations defined by at least one tooth portion of the oscillating round hole wheel. A return spring structure for a hand-wound watch according to claim 1.   The return spring structure for a hand-wound watch according to any one of claims 1 to 3, further comprising a substrate engaging portion configured to be attached to the support substrate by being pressed against the recess of the support substrate. A spring portion for applying an elastic force to displace the swing round hole wheel in one direction of the swing guide path of the swing round hole wheel with respect to the swing round hole wheel;
A rotation phase defining portion having irregularities that engage with a tooth portion of the rocking round hole wheel to define the rotation phase of the rocking round hole wheel,
The rotational phase defining portion is separate from the spring portion, and is configured to engage with the tooth portion of the oscillating round hole wheel by the unevenness when displaced by receiving an elastic force from the spring portion. A return spring structure for a hand-wound watch. A spring portion for applying an elastic force to displace the swing round hole wheel in one direction of the swing guide path of the swing round hole wheel with respect to the swing round hole wheel;
A rotation phase defining portion having irregularities that engage with a tooth portion of the rocking round hole wheel to define the rotation phase of the rocking round hole wheel,
The rotational phase defining portion is an unevenness having a shape that exactly meshes with the unevenness defined by at least one tooth portion of the swinging round hole wheel to define the rotational phase of the swinging round hole wheel,
The rotational phase defining portion is separate from the spring portion, and is configured to engage with the tooth portion of the oscillating round hole wheel by the unevenness when displaced by receiving an elastic force from the spring portion. A return spring structure for a hand-wound watch.   The return spring structure for a hand-wound timepiece according to claim 5 or 6, wherein the rotation phase defining portion is rotatably supported with respect to a support substrate.   A hand winding mechanism comprising: the return spring structure for a hand-wound timepiece according to any one of claims 1 to 7; and a winding stem for transmitting power to the oscillating round hole wheel. A movement comprising the return spring structure for a hand-winding timepiece according to any one of claims 1 to 7 and a base plate including the return spring structure for the hand-wound timepiece.   A hand-wound timepiece comprising a return spring structure for a hand-winding timepiece according to any one of claims 1 to 7 and a main plate including the hand-spring timepiece return spring structure. A method for assembling a hand-wound timepiece for assembling a gear that meshes between an oscillating round hole wheel and a square hole wheel whose rotational phase is defined by a helix,
A spring portion for applying an elastic force to displace the swing round hole wheel in one direction of the swing guide path of the swing round hole wheel with respect to the swing round hole wheel, and rotation of the swing round hole wheel Incorporating a return spring structure for a hand-wound timepiece having a rotational phase defining portion with projections and depressions that engages with the tooth portion of the swinging round hole wheel to define the phase;
Placing a gear that meshes between the swing round hole wheel whose rotation phase is defined by the spring structure and the square hole wheel; and
A method for assembling a hand-winding timepiece characterized by comprising:

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