Index, movement and timepieces

Abstract

A regulator hand, movement, and timepiece. This device can facilitate hairspring maintenance. The regulator hand of the present invention comprises an inner clip having a pair of legs, with the hairspring play fitting within the gap between the legs; a regulator body that holds the inner clip; and an outer clip having a mounting portion and a receiving portion. The mounting portion is detachably attached to the inner clip or the regulator body, and the receiving portion prevents the hairspring from being dislodged from the legs.

Description

Technical Field

[0001] The invention relates to an index finger, a movement and a clock. Background Art

[0002] Patent Document 1 discloses a regulator needle having a cover-like protrusion formed at the distal end of a pair of legs of an inner clip structure. The cover-like protrusion protrudes laterally along a side surface facing a gap between the legs.

[0003] In Patent Document 1, the aforementioned features allow the inclination of the hairspring to be adjusted by rotating the inner clip structure, and the cover-shaped protrusion is positioned to prevent the hairspring from moving in the separation direction. This prevents the hairspring from escaping from the gap between the legs.

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2007-114158

[0005] In Patent Document 1, when performing maintenance by removing the hairspring from the inner clamp structure, the inner clamp structure must be rotated to move the cover-shaped protrusion to a position where the hairspring can be moved in the separation direction. Consequently, there is a problem: after maintenance of the hairspring, when the hairspring is reinstalled in the gap between the legs of the inner clamp structure, the amount of inclination of the hairspring caused by the inner clamp structure must be readjusted. Summary of the Invention

[0006] The regulator needle of the present invention is characterized in that it comprises: an inner clip having a pair of legs, and the balance spring clearance fits in the gap between the pair of legs; a regulator needle body, which holds the inner clip; and an outer clip having a mounting portion and a receiving portion, the mounting portion being detachably mounted on the inner clip or the regulator needle body, and the receiving portion restricting the balance spring from detaching from the pair of legs.

[0007] The movement of the present invention is characterized in that it comprises: a hairspring formed in a spiral shape; and a regulator needle having an inner clip, a regulator needle body and an outer clip, the inner clip having a pair of legs, the hairspring clearance fits in the gap between the pair of legs, the regulator needle body holds the inner clip, the outer clip has a mounting portion and a receiving portion, the mounting portion is mounted on the inner clip or the regulator needle body in a detachable manner, and the receiving portion limits the hairspring from detaching from the pair of legs.

[0008] The watch of the present invention is characterized in that it has a movement, which has a hairspring formed in a spiral shape and a regulator needle, the regulator needle has an inner clamp, a regulator needle body and an outer clamp, the inner clamp has a pair of legs, the hairspring clearance fits in the gap between the pair of legs, the regulator needle body holds the inner clamp, the outer clamp has a mounting part and a supporting part, the mounting part is mounted on the inner clamp or the regulator needle body in a manner that can be loaded and unloaded, and the supporting part limits the hairspring from detaching from the pair of legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a plan view showing the main part of the movement of the timepiece according to the first embodiment.

[0010] Figure 2 This is a side view showing the main part of the regulator hand according to the first embodiment.

[0011] Figure 3 It is a plan view showing the main part of the regulator hand according to the first embodiment.

[0012] Figure 4 It is a perspective view showing the main part of the regulator hand according to the first embodiment.

[0013] Figure 5 This is a side view showing the main part of the regulator hand according to the second embodiment.

[0014] Figure 6 It is a plan view showing the main part of the regulator hand according to the second embodiment.

[0015] Figure 7 It is a perspective view showing the main part of the regulator hand according to the second embodiment.

[0016] Figure 8 This is a side view showing the main part of the regulator hand according to the third embodiment.

[0017] Figure 9 It is a plan view showing the main part of the regulator hand according to the third embodiment.

[0018] Figure 10 It is a perspective view showing the main part of the regulator hand according to the third embodiment.

[0019] Description of labels

[0020] 1. Clock; 2. Movement; 3. Regulating device; 4. Balance wheel; 5. Hairspring; 6. Balance cock; 41. Balance staff; 42. Balance wheel; 43. Stud; 44. 44A. 44B. Index finger; 45. 45A. 45B. Index finger body; 46. 46A. 46B. Inner clip; 47. 47A. 47B. Outer clip; 451. 451A. 451B. Main body; 452. 452A. First retaining part; 453. 453A. Second retaining part; 454A. End; 455B. Retaining part; 456B. First recess; 457B. Second recess ; 458B the first insertion hole; 459B the second insertion hole; 461, 461A the head; 462, 462A the shaft; 463, 463A, 463B the first leg; 464, 464A, 464B the second leg; 466, 466A, 466B the gap; 471, 471A, 471B the mounting portion; 472 the connecting portion; 473, 473A, 473B the supporting portion; 474 the mounting recess; 475, 475A, 475B the opening; 476A the mounting hole; 477B the mounting long hole. DETAILED DESCRIPTION

[0021] [First embodiment]

[0022] Hereinafter, a timepiece 1 according to a first embodiment of the present invention will be described with reference to the drawings.

[0023] Figure 1 1 is a top view showing the main part of the movement 2 of the timepiece 1 according to this embodiment. Figure 1 , the case of the timepiece 1 is omitted and only the movement 2 is shown.

[0024] like Figure 1 As shown, the timepiece 1 is a so-called mechanical timepiece and includes a movement 2. Furthermore, in this embodiment, the movement 2 includes a speed regulating device 3.

[0025] [Speed ​​regulating device]

[0026] The speed regulating device 3 is a component serving as a time reference of the timepiece 1 and includes a balance wheel 4 and a hairspring 5 .

[0027] The balance wheel 4 is a component that reciprocates with a certain period to control the movement of the escapement fork (not shown). It is composed of a balance staff 41, a balance wheel 42, an outer stud 43, an index finger 44, and a disc and inner stud (not shown).

[0028] The balance staff 41 is rotatably supported by the balance bridge 6 and the bottom plate (not shown). Furthermore, a balance wheel 42, a disc, and an inner collet are fixed to the balance staff 41, and these rotate integrally.

[0029] The stud 43 fixes the outer peripheral end of the hairspring 5 .

[0030] The speed needle 44 has an inner clip 46 described later, and the outermost peripheral portion of the hairspring 5 is loosely fitted with a pair of legs 463 and 464 ( Figure 2 ) In addition, the details of the fast and slow needle 44 will be described later.

[0031] The hairspring 5 is formed in an Archimedean spiral shape, and its inner peripheral end is fixed to an inner collet (not shown), and its outer peripheral end is fixed to an outer collet 43 .

[0032] Furthermore, in this speed regulating device 3, when the balance wheel 42 rotates about the balance staff 41, the collet also rotates with it. Consequently, the force of the hairspring 5 acts on the balance wheel 42. When this force balances the inertial force of the balance wheel 42, the rotation of the balance wheel 42 stops, and the balance wheel 42 rotates in the opposite direction due to the force of the hairspring 5. In other words, the balance wheel 42 repeatedly oscillates about the balance staff 41.

[0033] The oscillation period of the balance wheel 42 can be changed by finely adjusting the position of the inner clip 46 of the regulator hand 44 .

[0034] [Fast / Slow Needle]

[0035] Figure 2 4 is a side view showing the main part of the speed needle 44. Figure 3 1 is a top view showing the main part of the speed indicator 44. Figure 4 It is a perspective view showing the main part of the regulator hand 44 .

[0036] like Figures 1 to 4 As shown, regulator needle 44 adjusts the oscillation period of balance wheel 42 by adjusting the contact position between hairspring 5 and inner clip 46, thereby adjusting the effective length of hairspring 5. It comprises regulator needle body 45, inner clip 46, and outer clip 47. The effective length of hairspring 5 is the length from the inner end of hairspring 5 to the point where it contacts inner clip 46.

[0037] The speed needle body 45 is a member that holds the inner clip 46 and is formed of, for example, precipitation-hardened stainless steel. In this embodiment, the speed needle body 45 includes a main body 451 , a first holding portion 452 , and a second holding portion 453 .

[0038] like Figure 1 As shown in FIG, the main body 451 is formed in a C-shape in a plan view. In other words, the main body 451 is formed in a circular ring shape with a portion missing.

[0039] The first retaining portion 452 and the second retaining portion 453 extend parallel to each other from the main body 451, and arcuate recesses are formed on their opposing surfaces. Furthermore, the shaft portion 462 of the inner clip 46, described later, is inserted into the recesses of the first retaining portion 452 and the second retaining portion 453. In other words, the first retaining portion 452 and the second retaining portion 453 rotatably support the shaft portion 462 of the inner clip 46. Thus, the regulating needle body 45 is configured to retain the inner clip 46.

[0040] The inner clip 46 is a member for adjusting the tilt of the hairspring 5 and is formed of a non-magnetic member such as brass. In this embodiment, the inner clip 46 includes a head 461 , a shaft 462 , a first leg 463 , and a second leg 464 .

[0041] Head 461 has a generally elliptical shape composed of straight and arcuate portions when viewed from above. A shaft 462 extends from head 461, and head 461 and shaft 462 are integrally formed. Furthermore, head 461 rotates integrally with shaft 462, thus also functioning as an operating element for rotating shaft 462 when adjusting the inclination of hairspring 5.

[0042] The shaft portion 462 is inserted between the first retaining portion 452 and the second retaining portion 453 of the speed needle body 45 and is pivotally supported so as to be rotatable. Furthermore, one end of the shaft portion 462, which is closer to the head portion 461, has a tapered shape, with the diameter decreasing as it approaches the head portion 461. Furthermore, a pair of first legs 463 and second legs 464 are provided at the other end of the shaft portion 462. That is, in this embodiment, the shaft portion 462 retains the first legs 463 and the second legs 464.

[0043] The first leg 463 and the second leg 464 extend from the other end of the shaft 462 in the direction in which the shaft 462 extends. Furthermore, the first leg 463 and the second leg 464 are parallel to each other and have the same length. The outermost portion of the hairspring 5 is loosely fitted into the gap 466 between the first leg 463 and the second leg 464. Consequently, when the operating head 461 rotates the shaft 462, the tilt is adjusted, changing the distance between the first leg 463 or the second leg 464 and the hairspring 5, thereby adjusting the contact time during the oscillation of the hairspring 5. The contact time refers to the time it takes for the hairspring 5 to move from contact with the first leg 463 to release it, or from contact with the second leg 464 to release it, as the hairspring 5 contracts based on the oscillation cycle of the balance wheel 42. Reducing the tilt increases the total contact time, making it less likely that changes in the force exerted by the hairspring 5 during its release will affect the number of steps.

[0044] In the present embodiment, the first leg portion 463 and the second leg portion 464 are integrally provided at the end portion of the shaft portion 462 . However, the present invention is not limited thereto and, for example, they may be configured to be attached to the end portion of the shaft portion 462 .

[0045] The outer clip 47 is a member that restricts the hairspring 5 from dislodging from the gap 466 between the first leg 463 and the second leg 464. It is formed, for example, from a non-magnetic material such as SUS304 and an elastic member. In other words, in this embodiment, the inner clip 46 and the outer clip 47 that constitute the regulator hand 44 are formed from non-magnetic materials. This prevents the parts of the regulator hand 44 that come into direct contact with the hairspring 5 from becoming magnetic, thereby preventing any degradation in precision due to magnetism.

[0046] In the present embodiment, the outer clip 47 is formed by bending a plate member having a thickness of approximately 45 μm into a substantially C-shape, and includes a mounting portion 471 , a connecting portion 472 , and a supporting portion 473 .

[0047] The mounting portion 471 is configured to be detachably mounted on the inner clip 46. Specifically, the mounting portion 471 has a mounting recess 474 at its distal end. Furthermore, the shaft 462 of the inner clip 46 is press-fitted into this mounting recess 474. Thus, the mounting portion 471 is configured to be detachably mounted on the shaft 462 of the inner clip 46. In other words, in this embodiment, the inner clip 46 is configured to support the outer clip 47.

[0048] In this embodiment, the positional relationship between the inner clip 46 and the outer clip 47 in the direction of extension of the regulator needle 45 prevents the hairspring 5 from being dislodged. Specifically, the outer clip 47 is positioned between the first leg 463 and the second leg 464 of the inner clip 46 to prevent the hairspring 5 from being dislodged. Thus, the positional relationship between the outer clip 47 and the inner clip 46 in the direction of extension of the regulator needle 45 is determined solely by the outer clip 47 and the inner clip 46, eliminating the need to consider the positional relationships with other components. This simplifies the design of the outer clip 47.

[0049] The connecting portion 472 is flat and bent in a direction intersecting the mounting portion 471. In this embodiment, the connecting portion 472 is arranged radially outward of the main body 451 relative to the first holding portion 452 and the second holding portion 453 of the regulating needle body 45.

[0050] The receiving portion 473 is configured to prevent the hairspring 5 from dislodging from the first leg 463 and the second leg 464 of the inner clip 46. Specifically, the receiving portion 473 is flat and bent in a direction intersecting the connecting portion 472. As a result, when viewed from the side perpendicular to the inner clip 46, the receiving portion 473 is positioned so as to block the gap 466 between the first leg 463 and the second leg 464. In other words, the receiving portion 473 is positioned at the distal ends of the first leg 463 and the second leg 464. Thus, the receiving portion 473 prevents the hairspring 5 from moving in the direction of dislodging from the gap 466 between the first leg 463 and the second leg 464.

[0051] Here, in this embodiment, the outer clamp 47 is constructed by the mounting portion 471 to be capable of being loaded and unloaded relative to the inner clamp 46. Therefore, when assembling the regulator hand 44, by first arranging the hairspring 5 in the gap 466 between the first leg 463 and the second leg 464 and then mounting the outer clamp 47 to the inner clamp 46, the support portion 473 can be arranged in a position to block the gap 466 between the first leg 463 and the second leg 464 without being interfered with by the hairspring 5.

[0052] Conversely, when removing the hairspring 5, the outer clamp 47 is first removed from the inner clamp 46, and then the hairspring 5 is removed from the gap 466 between the first leg 463 and the second leg 464. In this way, the regulator hand 44 and the hairspring 5 can be removed without changing the inclination amount.

[0053] In addition, in this embodiment, Figure 2 As shown, along the radial direction of the main body 451 of the regulating needle body 45, the second leg 464, the first leg 463, and the connecting portion 472 are arranged in this order from the inside. Furthermore, an opening 475 is provided on the receiving portion 473 at a position corresponding to the distal end of the first leg 463. In other words, the opening 475 is provided on the receiving portion 473 at a position corresponding to the distal end of the first leg 463, which is located radially outward of the main body 451 of the regulating needle body 45, relative to the second leg 464. Thus, the outer clip 47 is formed of an elastic member, and the opening 475 is provided on the supporting portion 473 at a position corresponding to the distal end of the first leg 463. Therefore, when the supporting portion 473 is positioned so as to block the gap 466 between the first leg 463 and the second leg 464, interference between the distal end of the first leg 463, which is located radially outward of the main body 451, and the supporting portion 473 is prevented. In other words, when viewed from the side perpendicular to the inner clip 46, the receiving portion 473 can be positioned so as to overlap the distal end of the first leg 463. Thus, since the outer clip 47 is constructed from an elastic member, the distal end of the second leg 464, located radially inward, can be brought into contact with the supporting portion 473. Specifically, the distal end of the second leg 464 can be brought into contact with the receiving portion 473 while the receiving portion 473, constructed from the elastic member, is bent. This prevents the hairspring 5 from dislodging through the gap between the distal end of the second leg 464 and the receiving portion 473. Furthermore, the receiving portion 473 interferes with the first leg 463, causing the distal end of the receiving portion 473 to move away from the inner clip 46. This prevents the distal end of the receiving portion 473 from contacting the balance wheel 42, which operates around the regulator hand 44.

[0054] [Effects of the First Embodiment]

[0055] In this embodiment, the following effects can be obtained.

[0056] In this embodiment, an outer clip 47 is provided, and the outer clip 47 has a receiving portion 473 that restricts the movement of the hairspring 5. The hairspring 5 is loosely fitted in the gap 466 between the first leg 463 and the second leg 464 of the inner clip 46, thereby preventing the hairspring 5 from escaping from the gap 466.

[0057] In this embodiment, the outer clip 47 has a mounting portion 471 that is detachably mounted to the inner clip 46. Therefore, when the outer clip 47 is removed from the inner clip 46, the hairspring 5 can be removed from the gap 466 between the first leg 463 and the second leg 464. This allows maintenance of the hairspring 5 without changing the rotational angle of the inner clip 46 relative to the regulator needle 45. Therefore, after maintenance of the hairspring 5, there is no need to readjust the inclination of the hairspring 5 using the inner clip 46, making maintenance of the hairspring 5 easy.

[0058] In this embodiment, the receiving portion 473 is arranged at a position that blocks the gap 466 between the first leg portion 463 and the second leg portion 464. Therefore, the receiving portion 473 can restrict the movement of the hairspring 5 in the direction of escaping from the gap 466. Therefore, the hairspring 5 can be prevented from escaping from the gap 466.

[0059] In this embodiment, the mounting portion 471 is detachably attached to the shaft portion 462 of the inner clip 46. Thus, the positional relationship between the outer clip 47 and the inner clip 46 in the direction in which the regulating needle 45 extends is determined solely by the shaft portion 462 of the outer clip 47 and the inner clip 46, eliminating the need to consider the positional relationships with other components. This simplifies the design of the outer clip 47.

[0060] In this embodiment, the outer clip 47 is constructed from an elastic member. This allows the support portion 473 of the outer clip 47 to abut against the distal ends of the first leg 463 and the second leg 464 of the inner clip 46. Consequently, the receiving portion 473 interferes with the first leg 463, causing the distal end of the receiving portion 473 to move away from the inner clip 46. This prevents the distal end of the receiving portion 473 from contacting the balance wheel 42, which moves around the regulator hand 44.

[0061] In this embodiment, the inner clip 46 includes a shaft portion 462 that holds the first leg portion 463 and the second leg portion 464. The shaft portion 462 is rotatably held by the regulator needle body 45. Thus, the shaft portion 462 of the inner clip 46 is rotatably held relative to the regulator needle body 45. Therefore, by rotating the shaft portion 462 relative to the regulator needle body 45, the inclination of the hairspring 5 can be adjusted.

[0062] In this embodiment, an opening 475 is provided in the receiving portion 473 at a position corresponding to the distal end of the first leg 463. This allows the receiving portion 473 to be positioned so as to overlap with the first leg 463 located radially outward of the regulator needle 45 when viewed from the side perpendicular to the inner clip 46. This allows the second leg 464 located on the inner side to abut against the receiving portion 473, thereby preventing the hairspring 5 from escaping through the gap between the second leg 464 and the receiving portion 473.

[0063] [Second embodiment]

[0064] Next, refer to Figures 5 to 7 The regulator hand 44A of the timepiece according to the second embodiment of the present invention will be described. In the second embodiment, the same or similar components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0065] Figure 5 44A is a side view showing the main part of the speed indicator 44A. Figure 6 1 is a top view showing the main parts of the speed indicator 44A. Figure 7 It is a perspective view showing the main part of the regulator hand 44A.

[0066] like Figures 5 to 7 As shown, similarly to the regulator 44 of the first embodiment, the regulator 44A includes a regulator body 45A, an inner clip 46A, and an outer clip 47A.

[0067] Similar to the regulating needle body 45 in the first embodiment, the regulating needle body 45A is a member that holds the inner clip 46A and comprises a main body 451A, a first holding portion 452A, and a second holding portion 453A. Furthermore, in this embodiment, the regulating needle body 45A comprises a terminal portion 454A extending from the distal end of the first holding portion 452A in a direction intersecting the first holding portion 452A. In other words, in this embodiment, the first holding portion 452A and the terminal portion 454A form a generally L-shape when viewed from above, as viewed from the direction in which the inner clip 46A extends.

[0068] Similar to the inner clip 46 of the first embodiment, the inner clip 46A is integrally formed with a head 461A, a shaft 462A, a first leg 463A, and a second leg 464A. Furthermore, the inner clip 46A is configured so that the hairspring 5 has a play within the gap 466A between the first leg 463A and the second leg 464A. Thus, the tilt of the hairspring 5 can be adjusted by rotating the inner clip 46A relative to the regulator needle 45A.

[0069] The outer clip 47A, like the outer clip 47 of the first embodiment, is a member that restricts the hairspring 5 from coming out of the gap 466A between the first leg 463A and the second leg 464A.

[0070] In this embodiment, the outer clip 47A is formed by bending a plate-shaped elastic member having a thickness of approximately 45 μm into a substantially L-shape, and comprises a mounting portion 471A and a support portion 473A. Furthermore, in this embodiment, as in the first embodiment, the receiving portion 473A has an opening 475A at a position corresponding to the distal end of the first leg 463A of the inner clip 46A.

[0071] Here, in this embodiment, the mounting portion 471A is configured to be removably attached to the regulating needle body 45A. Specifically, a rectangular mounting hole 476A is provided in the mounting portion 471A. First, with the mounting portion 471A and the distal end portion 454A of the regulating needle body 45A arranged orthogonally, the distal end portion 454A is inserted into the mounting hole 476A. Then, the mounting portion 471A is rotated 90 degrees, and the first retaining portion 452A of the regulating needle body 45A is inserted into the mounting hole 476A. Thus, the mounting portion 471A is configured to be removably attached to the first retaining portion 452A of the regulating needle body 45A. In other words, in this embodiment, the regulating needle body 45A is configured to support the outer clamp 47A.

[0072] In this embodiment, the mounting portion 471A is not detachably attached to the inner clip 46A but is detachably attached to the speed needle body 45A. Therefore, when the outer clip 47A is attached to or detached from the speed needle body 45A, it is possible to suppress accidental rotation of the inner clip 46A. Consequently, rotation of the outer clip 47A can suppress changes in the tilt amount.

[0073] [Operation and Effect of the Second Embodiment]

[0074] In this embodiment, the following effects can be obtained.

[0075] In this embodiment, the mounting portion 471A is detachably mounted on the speed needle body 45A. This allows the outer clip 47A to be mounted on the speed needle body 45A, not on the inner clip 46A. This prevents the inner clip 46A from being accidentally rotated and changing the tilt when the outer clip 47A is mounted or removed.

[0076] [Third embodiment]

[0077] Next, refer to Figures 8 to 10 The regulator hand 44B of the timepiece according to the third embodiment of the present invention will be described. In the third embodiment, the same or similar components as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0078] Figure 8 44B is a side view showing the main part of the speed needle 44B. Figure 9 1 is a top view showing the main parts of the regulator hand 44B. Figure 10 It is a perspective view showing the main part of the regulator hand 44B.

[0079] like Figures 8 to 10 As shown, similarly to the regulator 44 and 44A of the first and second embodiments, the regulator 44B includes a regulator body 45B, an inner clip 46B, and an outer clip 47B.

[0080] The regulating needle body 45B, similar to the regulating needle bodies 45 and 45A in the first and second embodiments, is a member for holding the inner clip 46B and includes a main body portion 451B and a holding portion 455B.

[0081] In this embodiment, the holding portion 455B extends from the main body 451B in the radial direction of the main body 451B. The holding portion 455B is provided with a first recess 456B, a second recess 457B, a first insertion hole 458B, and a second insertion hole 459B.

[0082] The first recess 456B and the second recess 457B are disposed opposite each other in a plan view from the direction in which the inner clip 46B extends. Specifically, the first recess 456B and the second recess 457B are formed such that a portion of the retaining portion 455B is recessed at the ends in the width direction perpendicular to the direction in which the retaining portion 455B extends.

[0083] The first insertion hole 458B and the second insertion hole 459B are formed approximately in the center of the retaining portion 455B, aligned along the radial direction of the regulating needle body 45B. Furthermore, the first insertion hole 458B and the second insertion hole 459B are formed to correspond to the diameters of the first leg 463B and the second leg 464B of the inner clip 46B. In other words, the first insertion hole 458B and the second insertion hole 459B are designed to allow the first leg 463B and the second leg 464B to be press-fitted.

[0084] The inner clip 46B has a first leg 463B and a second leg 464B. That is, in this embodiment, the first leg 463B and the second leg 464B are configured as separate components. Moreover, the first leg 463B is formed in the shape of a round rod and is pressed into the first insertion hole 458B provided in the retaining portion 455B of the speed needle body 45B. In addition, the second leg 464B is formed in the shape of a round rod with its distal end cut into a semicircular shape, and its proximal end is pressed into the second insertion hole 459B provided in the retaining portion 455B of the speed needle body 45B. Thus, by rotating the second leg 464B, the distance between the side surface of the distal end side of the second leg 464B and the side surface of the first leg 463B is changed, thereby adjusting the amount of inclination.

[0085] The outer clip 47B, like the outer clips 47 and 47A in the first and second embodiments, is a member that restricts the hairspring 5 from coming out of the gap 466B between the first leg 463B and the second leg 464B.

[0086] In this embodiment, similar to outer clip 47A in the second embodiment, outer clip 47B is formed by bending a plate-shaped elastic member having a thickness of approximately 45 μm into a substantially L-shaped shape, and comprises a mounting portion 471B and a receiving portion 473B. Furthermore, in this embodiment, similar to the first and second embodiments, receiving portion 473B is provided with an opening 475B at a position corresponding to the distal end of first leg 463B of inner clip 46B.

[0087] In this embodiment, the mounting portion 471B is roughly C-shaped, with a slit at its end, and is detachably mounted to the regulating needle body 45B. Specifically, a roughly T-shaped elongated mounting hole 477B is provided in the center of the mounting portion 471B. To attach the outer clip 47B to the retaining portion 455B of the regulating needle body 45B, the outer clip 47B is positioned so that the width of the retaining portion 455B is perpendicular to the long axis of the elongated mounting hole 477B. In this position, the retaining portion 455B is pressed against the elongated mounting hole 477B of the mounting portion 471B, inserting it through the elongated mounting hole 477B. This causes the first recessed portion 456B and the second recessed portion 457B of the retaining portion 455B to engage with the mounting portion 471B, allowing the outer clip 47B to be detachably mounted to the retaining portion 455B of the regulating needle body 45B. In other words, in this embodiment, the regulating needle body 45B is configured to support the outer clip 47B.

[0088] As another method of attaching the outer clip 47B to the holding portion 455B of the speed needle body 45B, the outer clip 47B is arranged so that the width direction of the holding portion 455B is parallel to the long axis of the attachment long hole 477B. Figure 10 In the state shown, the outer clip 47B is rotated 90° with the direction in which the retaining portion 455B extends as the rotation axis. In this state, the retaining portion 455B is inserted through the elongated mounting hole 477B of the mounting portion 471B. Next, the retaining portion 455B is inserted through the elongated mounting hole 477B of the mounting portion 471 until the outer clip 47B moves to a position corresponding to the first recess 456B and the second recess 457B of the retaining portion 455B. Then, the outer clip 47B is rotated 90° in the opposite direction to the above.

[0089] [Operation and Effect of the Third Embodiment]

[0090] In this embodiment, the following effects can be obtained.

[0091] In this embodiment, the mounting portion 471B is detachably mounted on the speed needle body 45B. Thus, the outer clip 47B is mounted on the speed needle body 45B instead of the inner clip 46B. This prevents the inner clip 46B from being accidentally rotated and changing the tilt when the outer clip 47B is mounted or removed.

[0092] [Modification]

[0093] The present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope of achieving the object of the present invention are included in the present invention.

[0094] In the above-described embodiments, the receiving portions 473, 473A, and 473B are positioned so as to block the gaps 466, 466A, and 466B between the first legs 463, 463A, and 463B and the second legs 464, 464A, and 464B, but the present invention is not limited thereto. For example, the receiving portions may be staggered along the circumference of the outermost portion of the hairspring, starting from a position corresponding to the gap between the first and second legs. With this configuration, even if the hairspring moves along the direction in which the inner clip extends to a position where it escapes from the gap between the pair of legs, the outermost portion of the hairspring interferes with the receiving portions, restricting its movement. This prevents the hairspring from escaping from the gap between the legs.

[0095] In the above-mentioned embodiments, the outer clips 47, 47A, and 47B are formed of elastic members, but the present invention is not limited thereto. For example, the outer clips may be formed of a member that does not have elasticity.

[0096] In the aforementioned embodiments, openings 475, 475A, 475B are formed in the receiving parts 473, 473A, and 473B, but the present invention is not limited thereto. For example, a recess may be formed in the receiving part at a position corresponding to the end of the leg located on the outside. This configuration can prevent interference between the leg located on the outside and the receiving part. Furthermore, the present invention also encompasses the case where no opening or recess is formed in the receiving part.

[0097] In the above embodiments, the inner clips 46, 46A, 46B and the outer clips 47, 47A, 47B are formed of non-magnetic members, but the present invention is not limited thereto. For example, the present invention also encompasses the case where either or both of the inner and outer clips are formed of magnetic members.

[0098] In the above embodiments, the outer clips 47, 47A, and 47B are formed from a plate member having a thickness of approximately 45 μm, but this is not limiting. The thickness of the outer clip is not particularly limited, as long as it is removably attached to the inner clip or the regulator needle and can restrict the movement of the hairspring in the direction of escapement from the gap between the pair of legs.

[0099] In the third embodiment, the second leg portion 464B is formed into a round rod shape with the distal end cut into a semicircular shape, but the present invention is not limited thereto. For example, the second leg portion may be formed into a round rod shape similarly to the first leg portion.

[0100] [Summary of the Invention]

[0101] The regulator needle of the present invention is characterized in that it comprises an inner clip having a pair of legs, and the balance spring clearance fits in the gap between the pair of legs; a regulator needle body, which holds the inner clip; and an outer clip having a mounting portion and a receiving portion, the mounting portion being detachably mounted on the inner clip or the regulator needle body, and the receiving portion restricting the balance spring from detaching from the pair of legs.

[0102] In the present invention, the outer clip is provided with a receiving portion that restricts the movement of the hairspring loosely fitted in the gap between the pair of legs of the inner clip, thereby preventing the hairspring from coming out of the gap between the pair of legs.

[0103] In this invention, the outer clamp has a mounting portion that can be detachably attached to the inner clamp or regulator needle. Therefore, when the outer clamp is removed from the inner clamp or regulator needle, the hairspring can be removed through the gap between the pair of legs. This allows hairspring maintenance without changing the hairspring's rotational angle relative to the regulator needle. Therefore, after maintenance, there is no need to readjust the hairspring's tilt using the inner clamp, making hairspring maintenance easier.

[0104] In the regulator needle of the present invention, the receiving portion may be arranged at a position that blocks a gap between the pair of leg portions when viewed from a side direction perpendicular to the inner clip.

[0105] Thus, the receiving portion is arranged at a position that blocks the gap between the pair of legs, and thus the receiving portion can restrict the movement of the hairspring in the direction of escaping from the gap between the pair of legs. Therefore, it is possible to suppress the hairspring 5 from escaping from the gap between the pair of legs.

[0106] In the regulator needle of the present invention, the mounting portion may be detachably mounted on the inner clip.

[0107] Thus, the positional relationship between the outer clip and the inner clip in the extending direction of the speed needle body is determined only by the outer clip and the inner clip, and therefore, the positional relationship with other components does not need to be considered.

[0108] In the regulator needle of the present invention, the mounting portion may be detachably mounted on the regulator needle body.

[0109] Thus, the outer clip is attached to the speed needle body instead of the inner clip. Therefore, when attaching or detaching the outer clip, it is possible to suppress a change in the tilt amount due to accidental rotation of the inner clip.

[0110] In the regulator needle of the present invention, the outer clip may be formed of an elastic member.

[0111] As a result, the distal ends of the pair of leg portions of the outer clip and the inner clip can be brought into contact with each other, thereby preventing the hairspring from coming out of the gap between the pair of leg portions.

[0112] In the regulator needle of the present invention, the inner clip may include a shaft portion that holds the pair of legs, and the shaft portion may be rotatably held by the regulator needle body.

[0113] As a result, the shaft portion of the inner clip is rotatably held by the regulator body. Therefore, the inclination amount of the hairspring can be adjusted by rotating the shaft portion relative to the regulator body.

[0114] In the regulator needle of the present invention, the receiving portion may be provided with an opening at a position corresponding to a distal end of one of the pair of legs.

[0115] Thus, for example, by providing an opening at a position corresponding to the outer leg of the pair of legs, the receiving portion can be positioned so as to overlap with the outer leg when viewed from the side perpendicular to the inner clip. This allows the inner leg to abut against the receiving portion, thereby preventing the hairspring from escaping through the gap between the inner leg and the receiving portion.

[0116] The movement of the present invention comprises: a hairspring formed in a spiral shape; and a regulator needle, which has an inner clip, a regulator needle body and an outer clip, the inner clip having a pair of legs, the hairspring clearance fits in the gap between the pair of legs, the regulator needle body holds the inner clip, the outer clip has a mounting portion and a receiving portion, the mounting portion is mounted on the inner clip or the regulator needle body in a detachable manner, and the receiving portion limits the hairspring from detaching from the pair of legs.

[0117] In the present invention, the outer clip is provided with a receiving portion that restricts the movement of the hairspring loosely fitted in the gap between the pair of legs of the inner clip, thereby preventing the hairspring from coming out of the gap between the pair of legs.

[0118] In this invention, the outer clamp has a mounting portion that can be detachably attached to the inner clamp or regulator needle. Therefore, when the outer clamp is removed from the inner clamp or regulator needle, the hairspring can be removed through the gap between the pair of legs. This allows hairspring maintenance without changing the hairspring's rotational angle relative to the regulator needle. Therefore, after maintenance, there is no need to readjust the hairspring's tilt using the inner clamp, making hairspring maintenance easier.

[0119] The watch of the present invention has a movement, which has a hairspring formed in a spiral shape and a regulator needle, the regulator needle has an inner clamp, a regulator needle body and an outer clamp, the inner clamp has a pair of legs, the hairspring clearance fits in the gap between the pair of legs, the regulator needle body holds the inner clamp, the outer clamp has a mounting part and a supporting part, the mounting part is mounted on the inner clamp or the regulator needle body in a manner that can be loaded and unloaded, and the supporting part limits the hairspring from detaching from the pair of legs.

[0120] In the present invention, the outer clip is provided with a receiving portion that restricts the movement of the hairspring loosely fitted in the gap between the pair of legs of the inner clip, thereby preventing the hairspring from coming out of the gap between the pair of legs.

[0121] In this invention, the outer clamp has a mounting portion that can be detachably attached to the inner clamp or regulator needle. Therefore, when the outer clamp is removed from the inner clamp or regulator needle, the hairspring can be removed through the gap between the pair of legs. This allows hairspring maintenance without changing the hairspring's rotational angle relative to the regulator needle. Therefore, after maintenance, there is no need to readjust the hairspring's tilt using the inner clamp, making hairspring maintenance easier.

Claims

1. A speed needle, characterized in that: It has: an inner clip having a pair of legs, with the balance spring clearance fitting into a gap between the pair of legs; a fast and slow needle body, which holds the inner clip; The outer clip has a mounting portion and a receiving portion. The mounting portion is detachably mounted on the inner clip or the speed needle body, and the receiving portion restricts the hairspring from detaching from the pair of legs.

2. The regulator needle according to claim 1, characterized in that The receiving portion is arranged at a position that closes the gap between the pair of legs, that is, at the distal end side of the pair of legs.

3. The regulator needle according to claim 1 or 2, characterized in that: The mounting portion is detachably mounted on the inner clip.

4. The regulator needle according to claim 1 or 2, characterized in that: The mounting portion is detachably mounted on the speed needle body.

5. The regulator needle according to claim 1 or 2, characterized in that: The outer clip is composed of an elastic component.

6. The regulator needle according to claim 1 or 2, characterized in that: The inner clip has a shaft portion that holds the pair of legs. The shaft portion is rotatably held on the speed needle body.

7. The regulator needle according to claim 1 or 2, characterized in that: The receiving portion is provided with an opening at a position corresponding to a distal end of one of the pair of legs.

8. A movement, characterized in that: It has: a balance spring formed into a spiral shape; and The speed needle has an inner clip, a speed needle body and an outer clip. The inner clip has a pair of legs, and the balance spring clearance is matched with the gap between the pair of legs. The fast and slow needle body holds the inner clip, The outer clip includes a mounting portion and a receiving portion. The mounting portion is detachably mounted to the inner clip or the regulator needle body. The receiving portion restricts the hairspring from being detached from the pair of legs.

9. A timepiece, characterized in that: The watch has a movement having a spiral-shaped hairspring and an index needle, wherein the index needle has an inner clip, an index needle body and an outer clip. The inner clip has a pair of legs, and the balance spring clearance is matched with the gap between the pair of legs. The fast and slow needle body holds the inner clip, The outer clip includes a mounting portion and a receiving portion. The mounting portion is detachably mounted to the inner clip or the regulator needle body. The receiving portion restricts the hairspring from being detached from the pair of legs.

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