Clock and method for manufacturing the same

Abstract

To provide a watch that can set the gap between a regulating component and a bearing component to an appropriate value, and a method for manufacturing a watch.SOLUTION: A watch comprises: a rotating component 81 that has a rotation shaft 82 having a pivot at both ends, a rotating body 84 fixed to the rotation shaft 82 and rotating centered on the rotation shaft 82, and a regulating component 86 fixed to the rotation shaft 82 and arranged between one pivot and the rotating body 84 to regulate the movement of the rotating body 84 in a direction of the rotation shaft 82; and a bearing component 100 that supports one pivot. The regulating component 86 has a contact part 865 that, when the rotating component 81 moves toward the bearing component 100 along the axial direction of the rotation shaft 82, is brought into contact with the bearing component 100 and projects toward the bearing component 100, and the contact part 865 can adjust the amount of projection along the axial direction.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a clock and a method for manufacturing a clock.

Background Art

[0002] Patent Document 1 discloses an electronically controlled mechanical clock that converts mechanical energy released from a spring or the like into electrical energy and regulates the speed of a wheel train using this electrical energy. In such an electronically controlled mechanical clock, a generator is provided that includes a rotor with a magnet driven through a wheel train by a spring, a stator in which the rotor is rotatably disposed, and a coil wound around a part of the stator. When the wheel train rotates due to the mechanical energy released from the spring, this rotational motion is transmitted to the rotor, causing the rotor to rotate, and an electromotive force is generated in the coil by electromagnetic induction. Then, the control circuit is driven by this electromotive force, and the rotational speed of the rotor is regulated to apply a brake to the wheel train and regulate the speed of the wheel train. In order to ensure oil retention with respect to the shaft which is a sliding part, the rotor is pivotally supported by a combined bearing having a hole stone and a receiving stone in combination and a pressing spring for pressing the receiving stone.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a component that supports a rotating body such as the rotor of Patent Document 1, if a large impact is applied to the bearing when the cover glass surface of the watch is hit during carrying or the watch is dropped with the cover glass surface facing down, the bearing component that supports the rotation axis of the rotating body may come off. Therefore, in Patent Document 1, when a large impact is applied in the rotation axis direction and the rotor moves toward the bearing side, one of the shaft portions can prevent the bearing stone from coming off by bringing the rotor shaft into contact with the hole stone. However, in Patent Document 1, since a regulating component that regulates the movement of the rotor magnet or the rotor magnet is incorporated in the other shaft portion, it is difficult to directly bring the shaft portion into contact with the hole stone. In this case, it is preferable to bring the regulating component into contact with the bearing component. However, due to the dimensional tolerance related to the production of each component and the assembly tolerance related to the assembly of each component, there is a variation in the gap between the regulating component and the bearing component. Therefore, there has been a problem that it is difficult to set the gap between the regulating component and the bearing component to an appropriate value.

Means for Solving the Problem

[0005] The watch of the present disclosure includes a rotating shaft having tenons at both ends, a rotating body fixed to the rotating shaft and rotating about the rotating shaft, and a regulating component fixed to the rotating shaft and disposed between one of the tenons and the rotating body to regulate the movement of the rotating body in the axial direction of the rotating shaft. The watch further includes a bearing component that supports one of the tenons. The regulating component has a contact portion that contacts the bearing component when the rotating component moves toward the bearing component side along the axial direction of the rotating shaft and protrudes toward the bearing component side. The contact portion is configured to be able to adjust the protruding amount along the axial direction.

[0006] The manufacturing method of the watch of the present disclosure includes fixing a rotating body and a regulating component that regulates the movement of the rotating body in the axial direction of the rotating shaft to a rotating shaft having a tenon supported by a bearing component, and adjusting the protruding amount of the contact portion that protrudes along the axial direction based on the distance between the tip of the tenon and the tip of the contact portion that contacts the bearing component of the regulating component.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0008] [First Embodiment] Hereinafter, the clock 1 of the first embodiment of the present disclosure will be described with reference to the drawings. In the description of the present embodiment, the plan view means a state seen from the axial direction of the rotation axis 82 of the rotor 81 described later. Further, the cross-sectional view means a state seen from a direction perpendicular to the axial direction of the rotation axis 82 of the rotor 81 described later. FIG. 1 is a front view showing the clock 1. The clock 1 is configured as an electronically controlled wristwatch to be worn on the user's wrist, includes a cylindrical outer case 2, and a dial 3 is disposed on the inner peripheral side of the outer case 2.

[0009] The clock 1 includes a movement 10 shown in FIGS. 2 and 3 housed in the outer case 2, and an hour hand 4A, a minute hand 4B, and a second hand 4C for indicating time information shown in FIG. 1. The dial 3 is provided with a calendar window 3A, through which the date wheel 6 can be visually recognized. On the front side of the dial 3, hour marks 3B for indicating time are displayed. Note that the hour marks 3B are an example of the time display of the present disclosure.

[0010] On the side surface of the outer case 2, a dragon head 7 is provided. The dragon head 7 can be pulled out and moved from the 0 - step position pushed into the center of the clock 1 to the 1 - step position and the 2 - step position. When the dragon head 7 is rotated at the 0 - step position, the first mainspring 20 and the second mainspring 30 provided on the movement 10 can be wound up. The clock 1 can ensure a duration of about 120 hours when the first mainspring and the second mainspring are fully wound up. When the dragon head 7 is pulled to the 1 - step position and rotated, the date wheel 6 can be moved to adjust the date. When the dragon head 7 is pulled to the 2 - step position, the second hand 4C stops. When the dragon head 7 is rotated at the 2 - step position, the hour hand 4A and the minute hand 4B can be moved to adjust the time. Since the method of correcting the date wheel 6, the hour hand 4A, and the minute hand 4B by the dragon head 7 is the same as that of a conventional mechanical clock, the description is omitted.

[0011] [Movement] FIG. 2 is a plan view showing a main part of the movement 10 of the present embodiment, and FIG. 3 is a cross - sectional view showing a main part of the movement 10. As shown in FIGS. 2 and 3, the movement 10 includes a first barrel carriage 21 for housing the first mainspring 20 and a second barrel carriage 31 for housing the second mainspring 30. The hour hand 4A, the minute hand 4B, and the second hand 4C are driven by the first mainspring 20 and the second mainspring 30 of the movement 10. Note that the first mainspring 20 and the second mainspring 30 are an example of the mainsprings of the present disclosure.

[0012] The movement 10 includes a floor plate 11 disposed on the back side of the dial plate 3 and a wheel train receiver 14. Between the floor plate 11 and the wheel train receiver 14, a first incense box carriage 21, a second incense box carriage 31, a manual winding mechanism 40 and an automatic winding mechanism 50 for winding up the first spring 20 and the second spring 30 are arranged. Also, between the floor plate 11 and the wheel train receiver 14, an indicating wheel train 90 for transmitting the torque of the first spring 20 and the second spring 30 and a generator 80 driven by the torque transmitted through the indicating wheel train 90 are arranged.

[0013] [First Spring and First Incense Box Carriage] The first spring 20 is housed in the first incense box carriage 21. The first incense box carriage 21 includes a first incense box 22 and a first incense box plate 23. A first angular hole wheel 24 that rotates integrally with the first incense box plate 23 is attached to the first incense box plate 23.

[0014] [Manual Winding Mechanism] The manual winding mechanism 40 includes a winding spool 41 to which a dragon head 7 is attached, a bobbin wheel 42, a ratchet wheel 43, a round hole wheel 44, a first angular hole transmission wheel 45, a second angular hole transmission wheel 46, and a third angular hole transmission wheel 47. The third angular hole transmission wheel 47 meshes with the first angular hole wheel 24. Therefore, when the user rotates the dragon head 7 at the 0 - step position, the winding spool 41 and the bobbin wheel 42 rotate. When the dragon head 7 is at the 0 - step position, the bobbin wheel 42 meshes with the ratchet wheel 43, and the rotation of the bobbin wheel 42 is sequentially transmitted from the ratchet wheel 43 to the round hole wheel 44, the first angular hole transmission wheel 45, the second angular hole transmission wheel 46, and the third angular hole transmission wheel 47. For this reason, the first angular hole wheel 24 and the first incense box plate 23 rotate, and the first spring is wound up.

[0015] [Automatic Winding Mechanism] The automatic winding mechanism 50 includes a rotating weight 51, an eccentric wheel 53, a claw lever 54, and a transmission wheel 55. The eccentric wheel 53 includes an eccentric gear 531 and an eccentric shaft member 532, and rotates in both forward and reverse directions in conjunction with the rotating weight 51. The claw lever 54 is rotatably attached to the eccentric shaft portion of the eccentric shaft member 532 of the eccentric wheel 53. When the eccentric wheel 53 rotates in conjunction with the rotating weight 51, the claw lever 54 attached to the eccentric wheel 53 moves forward and backward in the direction approaching and moving away from the transmission wheel 55, and rotates the transmission wheel 55 in one direction.

[0016] The transmission wheel 55 is provided with a gear that meshes with the first angular hole wheel 24. When the transmission wheel 55 rotates in one direction in conjunction with the forward and backward movement of the claw lever 54, the first angular hole wheel 24 rotates. When the first angular hole wheel 24 rotates, the first spring box plate 23 rotates integrally with the first angular hole wheel 24, and the first mainspring 20 is wound up. Therefore, the clock 1 of the present embodiment can wind up the first mainspring 20 by both manual winding by operating the winding knob 7 and automatic winding by rotating the rotating weight 51.

[0017] [Second mainspring and second spring box wheel] The second mainspring 30 is housed in the second spring box wheel 31. The second spring box wheel 31 is provided with a second spring box 32. The second mainspring 30 is wound up by the first mainspring 20. That is, when the first mainspring 20 is wound up and torque capable of winding up the second mainspring 30 is accumulated, the first spring box 22 of the first spring box wheel 21 rotates. The first spring box 22 meshes with the second angular hole wheel 34 via the spring box intermediate wheel 27. When the first spring box 22 rotates, the second angular hole wheel 34 and the second spring box plate rotate, and the second mainspring is wound up.

[0018] Therefore, in the clock 1 of the present embodiment, both the first mainspring 20 and the second mainspring 30 can be wound up by either the manual winding mechanism 40 or the automatic winding mechanism 50. Note that as the clock 1, only one of the manual winding mechanism 40 or the automatic winding mechanism 50 may be provided.

[0019] [Generator] The generator 80 is configured to include a rotor 81 and coil blocks 88 and 89. The coil block 88 is formed by winding a coil 882 around a stator 881, and the coil block 89 is formed by winding a coil 892 around a stator 891. In this embodiment, when the rotor 81 rotates by an external torque, the generator 80 generates induced power by the coil blocks 88 and 89, outputs electrical energy, and can supply it to an IC or the like. Also, by short-circuiting the coils 882 and 892, a brake can be applied to the rotor 81, and by controlling the braking force, the rotation period of the rotor 81 can be adjusted to be constant. Thus, the clock 1 of this embodiment includes a generator 80 that generates induced power and outputs electrical energy.

[0020] FIG. 4 is an enlarged cross-sectional view showing a main part of the movement 10 of this embodiment, and FIG. 5 is a perspective view showing the rotor 81 of this embodiment. As shown in FIGS. 3 to 5, the rotor 81 includes a rotation shaft 82, a rotor shell 83, a rotor magnet 84, a rotor inertia plate 85, and a regulating component 86. The rotor magnet 84, the rotor inertia plate 85, and the regulating component 86 are respectively attached to the rotation shaft 82. The rotor inertia plate 85 is a component for reducing the rotation speed fluctuation of the rotor 81 against the driving torque fluctuation from the second box 32. Note that the rotor 81 is an example of the rotating component of the present disclosure, and the rotor magnet 84 is an example of the rotating body of the present disclosure.

[0021] At the end of the rotating shaft 82 on the floor 11 side, a first keyway 821 is formed, and at the end on the cam ring receiver 14 side, a second keyway 822 is formed. An integrally formed rotor hub 83 to which torque from the spring is transmitted is provided on the rotating shaft 82. The rotating shaft 82 includes a large-diameter flange 823 and a small-diameter shaft portion 824 continuously formed from the flange 823, and the first keyway 821 is provided at the tip of the shaft portion 824. The tip of the shaft portion 824 is formed in a tapered shape with a gradually decreasing diameter and is continuous with the first keyway 821. The continuous portion of the first keyway 821 and the shaft portion 824 is a curved surface, which can prevent the first keyway 821 from breaking from the root even when a radial force is applied to the rotor 81.

[0022] The end face 825 of the rotating shaft 82 on the cam ring receiver 14 side has a larger diameter than the second keyway 822. The root portion of the second keyway 822 continuous with the end face 825 is a curved surface, which can prevent the second keyway 822 from breaking from the root even when a radial force is applied to the rotor 81.

[0023] The rotor magnet 84 is formed in a cylindrical shape with a through hole 841 formed at the center. The rotor magnet 84 is inserted into the through hole 841 until the shaft portion 824 abuts against the flange 823.

[0024] The restricting component 86 is formed in a substantially cylindrical shape with a through hole 861 formed at the center. The restricting component 86 is fixed to the shaft portion 824 by press-fitting the shaft portion 824 into the through hole 861. Thereby, the rotor magnet 84 is sandwiched and fixed between the flange 823 and the restricting component 86. That is, the restricting component 86 is configured to restrict the axial movement of the rotor magnet 84 on the rotating shaft 82. In addition, a recess 862 continuous over the entire outer circumference is formed at an axial intermediate portion on the outer peripheral surface of the restricting component 86. For this reason, the diameter of the fixing portion 863 that abuts against and fixes the rotor magnet 84 is made larger than that of the recess 862.

[0025] Furthermore, in the present embodiment, a contact portion 865 is formed on the end surface 864 on the first keyway 821 side of the restricting component 86. The contact portion 865 is formed along the outer periphery of the end surface 864 and protrudes toward the first keyway 821 side. Therefore, the contact portion 865 is formed in an annular shape. The diameter of the contact portion 865 is smaller than that of the fixing portion 863 but larger than that of the concave portion 862. And in the present embodiment, as will be described later, the contact portion 865 is configured such that the tip of the contact portion 865 can be compressed according to the distance between the tip of the contact portion 865 and a later-described socket stone 120 in a state where the restricting component 86 is press-fitted onto the rotating shaft 82. Thereby, in the present embodiment, the rotor 81 is configured such that the distance between the tip of the contact portion 865 and the socket stone 120 can be adjusted.

[0026] [Display wheel train] Next, a display wheel train 90 that drives the hour hand 4A, minute hand 4B, and second hand 4C by mechanical energy from the first spring 20 and the second spring 30 will be described. The display wheel train 90 includes a second wheel (not shown), a third wheel 93, a fourth wheel 94, a fifth wheel 95, and a sixth wheel 96. The rotation of the second gear case 32 is transmitted to the second wheel and then sequentially speeded up through the third wheel 93, the fourth wheel 94, the fifth wheel 95, and the sixth wheel 96 and transmitted to the rotor 81. Therefore, the rotor 81 rotates with the torque transmitted from the first spring 20 and the second spring 30.

[0027] The minute hand 4B is fixed to the second wheel via a cylindrical cam (not shown), and the second hand 4C is fixed to the fourth wheel 94 via a second hand shaft 941. Also, a cylindrical gear (not shown) is connected to the cylindrical cam, and the hour hand 4A is fixed to the cylindrical gear.

[0028] In the above-described clock 1, the AC output from the generator 80 is stepped up and rectified through a rectifier circuit composed of step-up rectification, full-wave rectification, half-wave rectification, transistor rectification, etc., and is charged to a smoothing capacitor, and a rotation control device (not shown) that controls the rotation period of the generator 80 is operated with the power from this capacitor. Note that the rotation control device is composed of an integrated circuit including an oscillation circuit, a frequency division circuit, a rotation detection circuit, a rotation speed comparison circuit, electromagnetic brake control means, etc., and a crystal oscillator is used for the oscillation circuit.

[0029] [Bearing of the rotor] The bearings that support the rotor 81 include a first bearing 100 attached to the floor 11 and a second bearing 200 attached to the ring receiver 14.

[0030] [First bearing] The first bearing 100 includes a frame body 110 fixed to the floor 11, a hole stone 120 fixed to the frame body 110, a receiving stone 130 disposed within the frame body 110, and a pressing spring 140 that presses the receiving stone 130. Note that the first bearing 100 is an example of the bearing parts of the present disclosure.

[0031] The frame body 110 includes a disk-shaped holding portion 111 and a ring-shaped positioning portion 112 continuous with the outer periphery of the holding portion 111. A through hole 113 is formed at the center of the holding portion 111, and a concave portion 114 continuous with the through hole 113 is formed on the clock face side of the holding portion 111. The concave portion 114 is composed of a receiving surface portion 114A formed in a direction orthogonal to the axial direction of the shaft portion 824 from the end portion on the clock face side of the through hole 113, and a guide surface portion 114B formed in the axial direction from the outer periphery of the receiving surface portion 114A. The guide surface portion 114B is formed in a circumferential shape, and the opening area of the concave portion 114 is made larger than that of the through hole 113. The diameter of the opening on the clock face side of the holding portion 111 is made larger than that of the guide surface portion 114B, and a groove 116 is formed obliquely outward from this opening.

[0032] The socket stone 120 is formed of, for example, ruby or the like, and is a substantially disk-shaped component having a through hole 121 formed in a substantially central portion in plan view. The first spline 821 of the rotating shaft 82 is inserted through the through hole 121. The socket stone 120 is press-fitted and fixed into the through hole 113 of the frame body 110, and rotatably supports the first spline 821 of the rotating shaft 82. In the socket stone 120, the bottom surface 122 facing the regulating component 86 has a concave portion 122A with a spherical center portion in plan view as seen from the axial direction of the rotating shaft 82, and the periphery of the concave portion 122A is a flat surface 122B. The through hole 121 is formed at the center position of the concave portion 122A in the plan view.

[0033] The receiving stone 130 is a substantially disk-shaped component formed of, for example, ruby or the like, and includes a flat bottom surface 131, a curved surface 132, and an outer peripheral surface 133 provided between the bottom surface 131 and the surface 132. The receiving stone 130 is disposed in the concave portion 114, and the bottom surface 122 faces the tip of the first spline 821. Note that the diameter of the outer peripheral surface 133 of the receiving stone 130 is larger than the through hole 113 and smaller than the guide surface portion 114B, and in the concave portion 114, it is disposed so as to be movable in the axial direction of the rotating shaft 82 along the guide surface portion 114B.

[0034] The pressing spring 140 is composed of, for example, a leaf spring member formed of metal. The outer peripheral end portion is held in the groove 116 of the frame body 110, and the inner peripheral end portion abuts against the surface 132 of the receiving stone 130, biasing the receiving stone 130 toward the rotating shaft 82. Therefore, in the normal state, the receiving stone 130 is biased by the pressing spring 140, and the bottom surface 131 abuts against the receiving surface portion 114A and is positioned.

[0035] Here, as shown in FIG. 4, when the dimension of the gap between the tip of the contact portion 865 of the regulating component 86 and the socket stone 120 is A, the height dimension of the guide surface portion 114B, that is, the engagement amount between the receiving stone 130 and the frame body 110 is B, and the dimension of the gap between the tip of the first spline 821 and the receiving stone 130 is C, B > A - C is satisfied. For example, when A = 0.07 ± 0.025 (mm), B = 0.11 ± 0.01 (mm), and C = 0.025 ± 0.015 (mm), Amax = 0.095 mm, Bmin = 0.10 mm, and Cmin = 0.01 mm. At this time, in this embodiment, since the abutting portion 865 is configured to be adjustable in the protruding amount protruding toward the socket stone 120 side, B > A - C can be surely satisfied.

[0036] As shown in FIG. 3, the second bearing 200 includes a frame body 210, a socket stone 220, a receiving stone 230, and a pressing spring 240. The frame body 210 has the same configuration as the holding portion 111 of the frame body 110 and is fixed to the ring train receiver 14. Since the socket stone 220, the receiving stone 230, and the pressing spring 240 are the same components as the socket stone 120, the receiving stone 130, and the pressing spring 140, the description thereof is omitted.

[0037] [Method for manufacturing a watch] Next, a method for manufacturing the watch 1, particularly a method for incorporating the rotor 81, will be described. FIG. 6 is a perspective view showing the rotor 81 before adjusting the abutting portion 865. As shown in FIG. 6, first, the shaft portion 824 of the rotating shaft 82 is inserted into the through hole 841 of the rotor magnet 84, and the rotor magnet 84 is brought into contact with the flange 823. Next, the shaft portion 824 of the rotating shaft 82 is press-fitted into the through hole 861 of the restricting component 86. Thereby, the rotor magnet 84 is clamped and fixed by the flange 823 and the restricting component 86.

[0038] Next, in this state, the tip of the contact portion 865 of the restricting component 86 is compressed. At this time, the compression amount of the contact portion 865 is adjusted based on the distance between the tip of the first keyway 821 and the tip of the contact portion 865 in the direction along the axial direction of the rotary shaft 82. That is, in the present embodiment, the protruding amount of the contact portion 865 is adjusted based on the distance between the tip of the first keyway 821 and the tip of the contact portion 865 in the direction along the axial direction of the rotary shaft 82. The axial dimension of the contact portion 865 is designed to be slightly larger in advance so that the protruding amount can be adjusted. Then, after fixing the restricting component 86 to the rotary shaft 82, it is processed so that the axial distance between the tip of the first keyway 821 and the tip of the contact portion 865 becomes a predetermined distance. For example, it is processed with a hand press or the like so that the axial dimension of the contact portion 865 becomes smaller. Incidentally, when the restricting component 86 is fixed to the rotary shaft 82, if the axial distance between the tip of the first keyway 821 and the tip of the contact portion 865 already coincides with the predetermined distance in advance, it is not necessary to compress the tip of the contact portion 865 of the restricting component 86. Thereby, regardless of the dimensional tolerance related to the production of the rotary shaft 82, the rotor magnet 84, and the restricting component 86, and the assembly tolerance related to the assembly of the rotary shaft 82, the rotor magnet 84, and the restricting component 86, the distance between the first keyway 821 and the contact portion 865 in the direction along the axial direction of the rotary shaft 82 can be made substantially constant. Therefore, the dimension of the gap between the contact portion 865 and the hole stone 120 when the first keyway 821 of the rotor 81 is pivotally supported by the first bearing 100 can be set to an appropriate value. That is, it is possible to always satisfy B > A - C described above.

[0039] [Operation during impact] Next, the operation when an impact is applied to the timepiece 1, such as when the timepiece 1 is dropped, will be described. When an impact is applied to the timepiece 1 and the rotor 81 moves toward the floor 11 side, as shown in FIG. 7, the tip of the first keyway 821 abuts against the receiving stone 130 and biases the receiving stone 130. For this reason, the receiving stone 130 biased by the pressing spring 140 is pushed by the first keyway 821 and moves toward the timepiece surface side. When the rotor 81 moves further toward the floor 11 side and the contact portion 865 of the restricting component 86 abuts against the flat surface 122B of the hole stone 120, the rotor 81 does not move any further. At this time, in the present embodiment, as described above, since the compression amount of the contact portion 865 is adjusted in the state where the rotor 81 is assembled, the dimension of the gap between the contact portion 865 and the socket stone 120 can be set to an appropriate value. Therefore, before the receiving stone 130 comes off from the concave portion 114 of the frame body 110, the tip of the contact portion 865 of the regulating component 86 can be surely brought into contact with the socket stone 120. Accordingly, even if an impact is applied to the timepiece 1, it is possible to surely prevent the receiving stone 130 from moving to a position where it comes off from the concave portion 114. On the other hand, when the force applied to the rotor 81 due to the impact is released, the receiving stone 130 and the first pin 821 move toward the wheel train receiver 14 side by the biasing force of the pressing spring 140, and the rotor 81 returns to its original position.

[0040] Further, when an impact is applied to the timepiece 1 and the rotor 81 moves toward the wheel train receiver 14 side, as shown in FIG. 8, the tip of the second pin 822 comes into contact with the receiving stone 230 and biases the receiving stone 230. For this reason, the receiving stone 230 biased by the pressing spring 240 moves toward the back cover 8 side being pushed by the second pin 822 against the biasing force of the pressing spring 240. When the rotor 81 further moves toward the back cover 8 side, the end face 825 which is the second stopper comes into contact with the concave portion 222A of the socket stone 220, and the rotor 81 does not move any further. Accordingly, it is possible to prevent the receiving stone 230 from moving to a position where it comes off from the concave portion 214 of the frame body 210. Then, when the force applied to the rotor 81 due to the impact is released, the receiving stone 230 and the second pin 822 move toward the base plate 11 side by the biasing force of the pressing spring 240, and the rotor 81 returns to its original position.

[0041] Note that the fixing force for fixing the first bearing 100 and the second bearing 200 to the base plate 11 and the wheel train receiver 14 is set to a fixing force that can receive the impact force applied to the frame bodies 110 and 210 via the socket stones 120 and 220 when the rotor 81 collides with the socket stones 120 and 220. Similarly, the fixing force when the socket stones 120 and 220 are fixed to the frame bodies 110 and 210 is also set to a fixing force that can receive the impact force applied to the socket stones 120 and 220 when the rotor 81 collides with the socket stones 120 and 220.

[0042] [Operational Effects of the First Embodiment] In such a present embodiment, the following effects can be obtained. In the present embodiment, the regulating component 86 fixed to the rotating shaft 82 has a contact portion 865 that protrudes toward the first bearing 100 side. And the contact portion 865 is configured to be able to adjust the distance from the first bearing 100 along the axial direction of the rotating shaft 82. Thereby, regardless of the dimensional tolerances of the rotating shaft 82, the rotor magnet 84, and the regulating component 86, and the assembly tolerances related to the assembly of the rotating shaft 82, the rotor magnet 84, and the regulating component 86, the distance between the contact portion 865 of the regulating component 86 and the hole stone 120 of the first bearing 100 can be made substantially constant. Therefore, the gap between the regulating component 86 and the hole stone 120 can be set to an appropriate value, and it is possible to reliably prevent the receiving stone 130 from moving out of the concave portion 114 when the rotor 81 moves toward the first bearing 100 side.

[0043] In the present embodiment, when the gap between the contact portion 865 and the hole stone 120 is A, the engagement amount between the frame body 110 and the receiving stone 130 is B, and the gap between the tip of the first key 821 and the receiving stone 130 is C, it is configured such that B > A - C. Thereby, when the regulating component 86 comes into contact with the hole stone 120, it is possible to reliably prevent the receiving stone 130 from coming off the frame body 110.

[0044] In the present embodiment, since the contact portion 865 is provided in an annular shape, the distance between the contact portion 865 and the hole stone 120 can be easily adjusted by compressing the tip of the contact portion 865.

[0045] In the present embodiment, since the contact portion 865 is provided along the outer periphery of the regulating component 86, the outer diameter of the contact portion 865 can be increased, and it can be applied to the hole stone 120 over a large area. For this reason, in the contact portion 865, the load per unit area can be reduced, and deformation during impact can be suppressed. Furthermore, in the present embodiment, since the regulating component 86 is formed with a concave portion 862, the weight of the regulating component 86 can be reduced.

[0046] [Second Embodiment] Next, the clock of the second embodiment of the present disclosure will be described with reference to FIG. 9. 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. FIG. 9 is a cross-sectional view showing a main part of the movement 10A of the clock of the second embodiment. As shown in FIG. 9, the movement 10A of the second embodiment includes a base plate 11 disposed on the back side of the dial 3 and a wheel train receiver 14, similarly to the movement 10 of the first embodiment described above. Furthermore, the movement 10A has a rotor 81, stators 881 and 891, coils 882 and 892, a first bearing 100A, and a second bearing 200.

[0047] [First Bearing] In the present embodiment, the first bearing 100A includes a frame body 110A fixed to the base plate 11, a hole stone 120 fixed to the frame body 110A, a receiving stone 130 disposed in the frame body 110A, and a pressing spring 140 for pressing the receiving stone 130.

[0048] The frame body 110A includes a disk-shaped holding portion 111A and a ring-shaped positioning portion 112A continuous with the outer periphery of the holding portion 111A. Further, in the present embodiment, the frame body 110A has a covering portion 117A that covers a part of the hole stone 120 and is disposed opposite to the regulating component 86. The covering portion 117A is formed in a substantially annular shape along the opening of the through hole 113 and protrudes from the holding portion 111A toward the regulating component 86. In the present embodiment, the covering portion 117A has a flat surface 118A facing the regulating component 86. Thus, when an impact is applied to the clock and the rotor 81 moves toward the base plate 11, the contact portion 865 of the regulating component 86 is configured to contact the flat surface 118A of the covering portion 117A. Therefore, the rotor 81 does not move further, and it is possible to prevent the receiving stone 130 from coming off the frame body 110A. Further, since the covering portion 117A that contacts the contact portion 865 of the regulating component 86 protrudes toward the regulating component 86, the dimensional height of the regulating component 86 can be reduced. Therefore, the regulating component 86 can be miniaturized.

[0049] [Operation and Effect of the Second Embodiment] In such an embodiment as this, the following effects can be obtained. In this embodiment, the frame body 110A has a covering portion 117A that covers a part of the perforated stone 120 and is arranged to face the restricting component 86. The restricting component 86 is configured such that when the rotor 81 moves toward the first bearing 100A along the axial direction of the rotating shaft 82, the abutting portion 865 abuts against the covering portion 117A. Therefore, when the rotor 81 moves toward the first bearing 100A along the direction of the rotating shaft 82, the abutting portion 865 and the covering portion 117A can be made to abut more reliably. Further, since the covering portion 117A protrudes toward the restricting component 86 side, the restricting component 86 can be miniaturized.

[0050] [Third Embodiment] Next, a clock according to the third embodiment of the present disclosure will be described with reference to FIG. 10. In the second embodiment, the same or similar configurations as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted or simplified. The clock of this embodiment is configured as a mechanical clock having a template 400.

[0051] As shown in FIG. 10, the movement 10B of the third embodiment includes a base plate 11B disposed on the back side of the dial, a bearing component 300 fixed to the base plate 11B, and a template 400 pivotally supported by the bearing component.

[0052] [Bearing Component] The bearing component 300 includes a frame body 310 fixed to the base plate 11B, a perforated stone 320 fixed to the frame body 310, and a receiving stone 330 disposed within the frame body 310. The frame body 310 has a disk-shaped holding portion 311 and a covering portion 317 that covers a part of the perforated stone 320 and is arranged to face the swinging seat 430 of the template 400 described later. The covering portion 317 is formed in a substantially annular shape and is provided so as to protrude from the holding portion 311 toward the balance 430 side. And in the present embodiment, the covering portion 317 has a flat surface 318 facing the balance 430.

[0053] [Template] The template 400 is a clock part that constitutes the speed regulator of the mechanical clock of the present embodiment, and is configured to include a template shaft 410, a template wheel 420, a beard ball 440, and a beard holder 450. The template shaft 410 has a first keyway 411 formed at an end on the base plate 11B side and a second keyway 412 formed at the opposite end. And the template shaft 410 is pivotally supported by the bearing component 300 with the first keyway 411.

[0054] The template wheel 420, the balance 430, and the beard ball 440 are fixed to the template shaft 410, and are configured to rotate integrally. And the inner end of the beard spring 70 is fixed to the beard ball 440, and the outer end is fixed to the beard holder 450. Note that the template shaft 410 is an example of the rotation shaft of the present disclosure.

[0055] And in such a template 400, when the template wheel 420 rotates about the template shaft 410, the beard ball 440 also rotates accordingly. Therefore, the biasing force of the beard spring 70 acts on the template wheel 420. When this biasing force and the inertial force of the template wheel 420 are balanced, the rotation of the template wheel 420 stops, and the template wheel 420 rotates in the reverse direction by the biasing force of the beard spring 70. That is, the template wheel 420 repeats swinging about the template shaft 410. Note that the template wheel 420 is an example of a rotating body that rotates about the template shaft 410 of the present disclosure. In addition, rotation includes not only rotating in one direction about an axis, but also rotating in one direction and the reverse direction about an axis, and swinging.

[0056] Here, in the present embodiment, the template wheel 420 is sandwiched and fixed between the balance 430 and the beard ball 440. That is, the balance 430 is configured to restrict the movement of the template wheel 420 along the axial direction of the template shaft 410. Note that the balance 430 is an example of the restricting component of the present disclosure. Further, the rocking seat 430 is formed in a substantially cylindrical shape, and a contact portion 431 is formed on the end face on the side of the first groove 411. The contact portion 431 is provided so as to protrude toward the bearing component 300 side.

[0057] And, the contact portion 431 is configured such that, in a state where the rocking seat 430 is fixed to the template 410, the axial dimension of the contact portion 431 can be reduced by compressing the tip of the contact portion 431 according to the distance between the tip of the contact portion 431 and the tip of the groove of the template 410. Thus, in the present embodiment, the template 400 is configured such that the distance between the tip of the contact portion 431 and the flat surface 318 of the covering portion 317 can be adjusted to an appropriate value. Therefore, in the present embodiment, when an impact is applied to the clock and the template 400 moves toward the base plate 11B side, the tip of the contact portion 431 of the rocking seat 430 can be reliably brought into contact with the flat surface 318 of the covering portion 317 before the bearing stone 330 comes off the frame body 310. Therefore, even when an impact is applied to the clock, it is possible to reliably prevent the bearing stone 330 from moving to a position where it comes off the frame body 310.

[0058] [Operation and Effect of the Third Embodiment] In such a present embodiment, the following effects can be obtained. In the present embodiment, the frame body 310 has a covering portion 317 that covers the hole stone 320 and is disposed opposite to the rocking seat 430. And, the rocking seat 430 is configured such that the contact portion 431 comes into contact with the covering portion 317 when the template 400 moves toward the bearing component 300 side along the axial direction of the template 410. Therefore, when the template 400 moves toward the bearing component 300 side along the axial direction of the template 410, the contact portion 431 and the covering portion 317 can be more reliably brought into contact with each other, and it is possible to prevent the bearing stone 330 from coming off the frame body 310.

[0059] [Modification Example] Note that the present disclosure is not limited to the above-described embodiments, and modifications, improvements, etc. within the scope that can achieve the object of the present disclosure are included in the present disclosure.

[0060] In the first and second embodiments described above, the clock 1 was configured to include two mainsprings, i.e., the first mainspring 20 and the second mainspring 30. However, the present invention is not limited thereto. For example, the clock 1 may be configured to include only one mainspring.

[0061] In each of the above embodiments, the abutting portions 865 and 431 were configured such that the protruding amount could be adjusted by compressing the tips. However, the present invention is not limited thereto. For example, the abutting portion may be configured such that the protruding amount can be adjusted by bending the tip portion, or may be configured such that the protruding amount can be adjusted by bending the intermediate portion.

[0062] In each of the above embodiments, the first bearings 100 and 100A and the bearing components 300 were configured as bearing components including the frame bodies 110, 110A, and 310, the socket stones 120 and 320, and the receiving stones 130 and 330. However, the present invention is not limited thereto. For example, the bearing component may be configured as a seismic bearing.

[0063] In the second and third embodiments described above, the abutting portions 865 and 431 were configured to abut against the covering portions 117A and 317 of the frame bodies 110A and 310. However, the present invention is not limited thereto. For example, the abutting portion may be configured to abut against the flat surface of the holding portion of the frame body.

[0064] In the first and second embodiments described above, the abutting portion 865 was formed in an annular shape along the outer periphery of the regulating component 86. However, the present invention is not limited thereto. For example, the abutting portion may be configured by a plurality of plate-like members.

[0065] [Summary of the Present Disclosure] The clock of the present disclosure includes a rotating shaft having tenons at both ends, a rotating body fixed to the rotating shaft and rotating about the rotating shaft, and a regulating component fixed to the rotating shaft and disposed between one of the tenons and the rotating body to regulate the movement of the rotating body in the axial direction of the rotating shaft. The clock further includes a bearing component that supports one of the tenons. The regulating component has a contact portion that contacts the bearing component when the rotating component moves toward the bearing component side along the axial direction of the rotating shaft and protrudes toward the bearing component side. The contact portion is configured to be adjustable in the protruding amount along the axial direction. In the present disclosure, the regulating component fixed to the rotating shaft has a contact portion that protrudes toward the bearing component side. The contact portion is configured to be adjustable in the protruding amount along the axial direction of the rotating shaft. Thereby, regardless of the dimensional tolerances of the rotating shaft, the rotating body, and the regulating component, and the assembly tolerances related to the assembly of the rotating shaft, the rotating body, and the regulating component, the distance between the contact portion of the regulating component and the bearing component can be made substantially constant. Therefore, the gap between the regulating component and the bearing component can be set to an appropriate value, and it is possible to more reliably prevent the bearing component from being damaged when the rotating component moves toward the bearing component side.

[0066] In the clock of the present disclosure, the rotating component is a rotor that rotates by torque from a mainspring. The bearing component includes a frame fixed to a base plate, a hole stone fixed to the frame through which one of the tenons of the rotating shaft is inserted, a receiving stone disposed inside the frame, and a pressing spring that presses the receiving stone. The regulating component may be configured such that the contact portion contacts the hole stone when the rotating component moves toward the bearing component side along the axial direction. Thereby, in, for example, an electronically controlled clock having a rotor that rotates by torque from a mainspring, when the rotor moves toward the bearing component side along the axial direction of the rotating shaft, the contact portion and the hole stone can be more reliably brought into contact with each other. Therefore, it is possible to prevent the receiving stone from coming off the frame.

[0067] In the clock of the present disclosure, the rotating component is a rotor that rotates by torque from a spring, and the bearing component includes a frame fixed to a floor, a hole stone fixed to the frame through which one tenon of the rotating shaft is inserted, a receiving stone disposed inside the frame, and a pressing spring that presses the receiving stone. The frame has a covering portion that covers a part of the hole stone and is disposed opposite to the restricting component. The restricting component may be configured such that when the rotating component moves toward the bearing component along the axial direction, the abutting portion abuts against the covering portion. Accordingly, in, for example, an electronically controlled clock having a rotor that rotates by torque from a spring, when the rotor moves toward the bearing component along the axial direction of the rotating shaft, the abutting portion and the covering portion can be made to abut more reliably. Therefore, it is possible to prevent the receiving stone from coming off the frame. Further, since the covering portion configured to abut against the abutting portion is disposed so as to cover a part of the hole stone, the covering portion can be disposed closer to the restricting component side than the hole stone. Therefore, the restricting component of the rotor can be made smaller.

[0068] In the clock of the present disclosure, when the gap between the abutting portion and the hole stone is A, the engagement amount between the frame and the receiving stone is B, and the gap between the tip of the tenon and the receiving stone is C, it may be the case that B > A - C. Accordingly, when the restricting component abuts against the hole stone or the covering, it is possible to surely prevent the receiving stone from coming off the frame.

[0069] In the clock of the present disclosure, the rotating component is a temple having a tenon that constitutes the rotating shaft, a ten-ring fixed to the tenon that constitutes the rotating body, and a swing seat that constitutes the restricting component. The swing seat may have the abutting portion that protrudes toward the bearing component side. Accordingly, in, for example, a mechanical clock having a temple, when the temple moves toward the bearing component along the axial direction of the rotating shaft, the abutting portion and the bearing component can be made to abut more reliably.

[0070] In the clock of the present disclosure, the abutting portion may be provided in an annular shape. As a result, since the contact portion is provided in an annular shape, the distance between the contact portion and the bearing component can be easily adjusted by, for example, compressing the tip side of the contact portion.

[0071] In the clock of the present disclosure, the contact portion may be provided along the outer periphery of the regulating component. As a result, the diameter of the contact portion can be increased, and it can be applied to the bearing component over a wide area. Therefore, in the contact portion, the load per unit area can be reduced, and deformation during impact can be suppressed.

[0072] The manufacturing method of the clock of the present disclosure includes fixing a rotating body and a regulating component that regulates the axial movement of the rotating shaft of the rotating body to a rotating shaft having a tenon supported by a bearing component, and adjusting the protruding amount of the contact portion protruding along the axial direction based on the distance between the tip of the tenon and the tip of the contact portion that contacts the bearing component of the regulating component. As a result, regardless of the dimensional tolerances related to the production of the rotating shaft, the rotating body, and the regulating component, and the assembly tolerances related to the assembly of the rotating shaft, the rotating body, and the regulating component, the distance between the contact portion of the regulating component and the bearing component can be made substantially constant. Therefore, a clock can be manufactured in which the gap between the regulating component and the bearing component can be set to an appropriate value, and it is possible to more reliably prevent the bearing component from being damaged when the rotating component moves toward the bearing component side.

Description of Reference Numerals

[0073] 1... clock, 2... outer case, 3... dial, 3A... calendar window, 3B... hour mark, 4A... hour hand, 4B... minute hand, 4C... second hand, 6... date wheel, 7... fusee, 10, 10A, 10B... movement, 11, 11B... base plate, 14... wheel train support, 20... mainspring, 21... first barrel carriage, 22... first barrel, 23... first barrel core, 24... first corner hole wheel, 27... intermediate barrel carriage, 30... second mainspring, 31... second barrel carriage, 32... second barrel, 34... second corner hole wheel, 40... manual winding mechanism, 50... automatic winding mechanism, 51... rotor weight, 53... eccentric wheel, 54... pawl lever, 80... generator, 81... rotor (rotating part), 82... rotating shaft, 823... flange, 824... shaft part, 825... end face, 83... rotor kana, 84... rotor magnet (rotor), 841... through hole, 85... rotor inertia plate, 86... regulating part, 861... through hole, 862... recess, 863... fixing part, 864... end face, 865... contact part, 88... coil block, 881... stator, 882... coil, 89... coil block, 891... stator, 892... coil, 90... display wheel train, 93... third wheel, 94... fourth wheel, 95... fifth wheel, 96... sixth wheel, 97... barrel wheel, 100, 100A... first bearing (bearing part), 110, 110A... frame, 111, 111A... holding part, 112, 112A... positioning part, 113... through hole, 114... recess, 114A... receiving face, 114B... guide face, 116... groove, 120... jewel, 121... through hole, 122... bottom surface, 122A... recess, 122B... flat surface, 130... bearing jewel, 131... bottom surface, 132... surface, 133... outer peripheral surface, 140... retaining spring, 200... second bearing, 210... frame, 214... recess, 220... jewel, 222A... recess, 222B... flat surface, 230... bearing jewel, 240... retaining spring, 300... bearing part, 310... frame, 311... holding part, 317... covering part, 318... flat surface, 320... jewel, 330... bearing jewel, 400... template (rotating part), 410... template core, 411... first keyway, 412... second keyway, 420... template wheel (rotor), 430... swing seat (regulating part), 431... contact part.

Claims

1. A rotating component having a rotating shaft with tenons at both ends, a rotating body fixed to the rotating shaft and rotating about the rotating shaft, and a regulating component fixed to the rotating shaft and disposed between one of the tenons and the rotating body to regulate the movement of the rotating body in the axial direction of the rotating shaft. And a bearing component for supporting one of the tenons. The regulating component has a contact portion that contacts the bearing component when the rotating component moves toward the bearing component along the axial direction of the rotating shaft and protrudes toward the bearing component side. The contact portion is annular, and in a state where the regulating component is fixed to the rotating shaft, the protruding amount along the axial direction can be adjusted by compressing the tip of the contact portion according to the distance between the tip of the contact portion and the bearing component. A timepiece characterized by the above.

2. In the timepiece according to Claim 1, The rotating component is a rotor that rotates by torque from a mainspring. The bearing component includes a frame fixed to a floor, a hole stone fixed to the frame through which one of the tenons of the rotating shaft is inserted, a receiving stone disposed inside the frame, and a pressing spring for pressing the receiving stone. The regulating component is configured such that the contact portion contacts the hole stone when the rotating component moves toward the bearing component side along the axial direction. A timepiece characterized by the above.

3. In the timepiece according to Claim 1, The rotating component is a rotor that rotates by torque from a mainspring. The bearing component includes a frame fixed to a floor, a hole stone fixed to the frame through which one of the tenons of the rotating shaft is inserted, a receiving stone disposed inside the frame, and a pressing spring for pressing the receiving stone. The frame has a covering portion that covers a part of the hole stone and is disposed opposite to the regulating component. The regulating component is configured such that the contact portion contacts the covering portion when the rotating component moves toward the bearing component side along the axial direction. A timepiece characterized by the above.

4. In the timepiece according to Claim 2 or Claim 3, Let the gap between the contact portion and the hole stone be A, Let the engagement amount between the frame and the receiving stone be B, Let the gap between the tip of the tenon and the receiving stone be C. Then, B > A - C A timepiece characterized by the above.

5. In the timepiece according to Claim 1, The rotating component is a ten-plate having a ten-pin forming the rotating shaft, a ten-ring fixed to the ten-pin and forming the rotating body, and a pendulum seat forming the regulating component, wherein the pendulum seat has the contact portion protruding toward the bearing component side. A clock characterized by the above.

6. In the clock according to any one of Claims 1 to 5, the contact portion is provided along the outer periphery of the regulating component. A clock characterized by the above.

7. A rotating component having a rotating shaft having pins at both ends, a rotating body fixed to the rotating shaft and rotating about the rotating shaft, and a regulating component fixed to the rotating shaft and disposed between one of the pins and the rotating body to regulate the movement of the rotating body in the axial direction of the rotating shaft, and a bearing component supporting one of the pins, wherein the regulating component has a contact portion that contacts the bearing component when the rotating component moves toward the bearing component side along the axial direction of the rotating shaft and protrudes toward the bearing component side, the contact portion is configured to be adjustable in the protruding amount along the axial direction, the rotating component is a rotor that rotates by torque from a mainspring, the bearing component has a frame fixed to the floor, a hole stone fixed to the frame through which one of the pins of the rotating shaft is inserted, a receiving stone disposed inside the frame, and a pressing spring that presses the receiving stone, the regulating component is configured such that the contact portion contacts the hole stone when the rotating component moves toward the bearing component side along the axial direction, when the gap between the contact portion and the hole stone is A, the engagement amount between the frame and the receiving stone is B, and the gap between the tip of the pin and the receiving stone is C, B > A - C. A clock characterized by the above.

8. A rotating component having a rotating shaft having pins at both ends, a rotating body fixed to the rotating shaft and rotating about the rotating shaft, and a regulating component fixed to the rotating shaft and disposed between one of the pins and the rotating body to regulate the movement of the rotating body in the axial direction of the rotating shaft, and a bearing component supporting one of the pins, wherein the regulating component has a contact portion that contacts the bearing component when the rotating component moves toward the bearing component side along the axial direction of the rotating shaft and protrudes toward the bearing component side, the contact portion is configured to be adjustable in the protruding amount along the axial direction, the rotating component is a rotor that rotates by torque from a mainspring, The bearing component has a frame fixed to the floor, a hole stone fixed to the frame through which one of the tenons of the rotating shaft is inserted, a receiving stone disposed inside the frame, and a pressing spring for pressing the receiving stone. The frame has a covering portion that covers a part of the hole stone and is disposed opposite to the restricting component. The restricting component is configured such that when the rotating component moves toward the bearing component along the axial direction, the abutting portion abuts against the covering portion. Let the gap between the abutting portion and the hole stone be A. Let the engagement amount between the frame and the receiving stone be B. When the gap between the tip of the tenon and the receiving stone is C. B > A - C A clock characterized by this.

9. Fixing a rotating body and a restricting component that restricts the axial movement of the rotating shaft of the rotating body to a rotating shaft having a tenon supported by a bearing component. Adjusting the protruding amount by which the abutting portion protrudes along the axial direction by pressing the tip of the abutting portion, with reference to the distance between the tip of the tenon and the tip of the annular abutting portion that abuts against the bearing component of the restricting component. A method for manufacturing a clock, characterized by this.

Images