Switching device and watch

Abstract

The invention provides a switch device which is characterized in that the switch device is provided with: a housing provided with a through hole; a cylindrical member, at least a portion of which is inserted into the through hole of the housing; an operation member disposed from the inside of the cylindrical member to the outside of the cylindrical member; and a lock mechanism that locks the operation member to the cylindrical member, the lock mechanism being provided with: a lock member that is locked to the cylindrical member by a rotational operation of the operation member; and a rotation transmission member that is a different member from the lock member and that rotates the lock member in accordance with the rotational operation of the operation member.

Description

Technical Field

[0001] The present invention relates to a switch device for electronic equipment such as a wristwatch and a wristwatch having the switch device. Background Art

[0002] Japanese Utility Model Application Laid-Open No. 52-52979 describes a structure in which a fixing pipe is installed in a through hole of a wristwatch case, and an operating member is mounted on the fixing pipe so as to be rotatable and axially slidable.

[0003] The switch device of this wristwatch has a locking mechanism that locks the operating member to the fixing tube to prevent the operating member from being pressed into the wristwatch case and damaging the watch module in the wristwatch case when the operating member is impacted from the outside. Summary of the invention

[0004] The present invention is a switch device, characterized in that it comprises: a shell, which is provided with a through hole; a cylindrical component, at least a part of which is inserted into the through hole of the shell; an operating component, which is configured from the inside of the cylindrical component to the outside of the cylindrical component; and a locking mechanism, which locks the operating component to the cylindrical component, the locking mechanism comprising: a locking component, which is locked to the cylindrical component by a rotational operation of the operating component; and a rotation transmission component, which is a component different from the locking component and causes the locking component to rotate according to the rotational operation of the operating component. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 This is an enlarged front view showing an embodiment in which the present invention is applied to a wristwatch.

[0006] Figure 2 Yes means Figure 1 An enlarged cross-sectional view of the main parts of the watch shown as viewed along the arrow AA.

[0007] Figure 3 It means in Figure 2 An enlarged cross-sectional view of a main part of the switch device in a state where the locking mechanism of the operating member is released.

[0008] Figure 4 Viewed from the outside of the watch case Figure 2 An exploded perspective view of the switch device shown.

[0009] Figure 5 Viewed from the inside of the watch case Figure 2 An exploded perspective view of the switch device shown.

[0010] Figure 6 is Figure 2An enlarged cross-sectional view of a main part of the switch device shown in the figure when an external impact is applied to the switch device in a state where the operating member is locked. DETAILED DESCRIPTION

[0011] Below, refer to Figure 1 to Figure 6 , an embodiment of applying the present invention to a wristwatch is described.

[0012] like Figure 1 As shown in FIG. 1 , the wristwatch includes a wristwatch case 1. Band attachment portions 2 for attaching a watch band (not shown) are provided on the 12 o'clock side and the 6 o'clock side of the wristwatch case 1, respectively.

[0013] like Figure 1 As shown in FIG. 1 , a push button switch 3 is provided at the 2 o'clock side, the 4 o'clock side, the 8 o'clock side and the 10 o'clock side of the watch case 1. In addition, a switch device 4 is provided at the 3 o'clock side of the watch case 1. Figure 2 as well as Figure 3 As shown, a watch glass 5 is provided at the upper opening of the watch case 1 via a glass gasket 5a. A back cover 6 is mounted at the lower portion of the watch case 1 via a waterproof gasket 6a.

[0014] In addition, if Figure 2 as well as Figure 3 As shown, a watch module 7 is provided inside the wristwatch case 1. Although not shown, the watch module 7 includes a watch movement for moving the hands to indicate the time, a flat display device for electro-optically displaying information such as the time, date, and day of the week, and various parts required for the watch functions such as a circuit unit for driving and controlling them.

[0015] In this case, if Figure 2 as well as Figure 3 As shown, the wristwatch case 1 comprises: a case body 1a; a first exterior component 1b, which is arranged on the outer periphery of the case body 1a; and a second exterior component 1c, which is located on the upper part of the first exterior component 1b and arranged on the upper outer periphery of the case body 1a. The case body 1a is formed of metal or a synthetic resin with high rigidity. The first exterior component 1b is formed of a soft synthetic resin such as polyurethane resin. The second exterior component 1c is formed of metal or synthetic resin.

[0016] However, if Figure 1 to Figure 3 As shown, the switch device 4 provided at the 3 o'clock side of the wristwatch case 1 is a switch for setting and selecting functions such as time correction and mode switching. The switch device 4 comprises: a cylindrical member 10, which is mounted in a through hole 8 provided in the case body 1a of the wristwatch case 1; an operating member 11, which is mounted on the cylindrical member 10 in a slidable and rotatable manner; and a locking mechanism 27, which locks the operating member 11 to the cylindrical member 10.

[0017] like Figure 2 as well as Figure 3 As shown, the cylindrical member 10 is formed into a substantially tubular shape by a metal with high rigidity such as stainless steel. The cylindrical member 10 comprises: a small diameter cylindrical portion 12, which is inserted into the through hole 8 of the case body 1a of the wristwatch case 1; and a large diameter cylindrical portion 13, which is arranged to protrude to the outside of the case body 1a. The small diameter cylindrical portion 12 is formed so that its outer diameter is substantially the same as the inner diameter of the through hole 8 of the case body 1a. In addition, the small diameter cylindrical portion 12 is formed so that its inner diameter is slightly smaller than the inner diameter of the through hole 8. Thus, the small diameter cylindrical portion 12 is formed into a thin-walled tubular shape.

[0018] like Figure 2 as well as Figure 3 As shown in FIG. 1 , the small-diameter cylinder 12 is formed so that its axial length is slightly longer than the axial length of the through hole 8. Thus, the small-diameter cylinder 12 is configured so that when the large-diameter cylinder 13 is disposed in contact with the outer surface of the case body 1a of the wristwatch case 1, the inner end of the small-diameter cylinder 12 protrudes into the interior of the case body 1a. In this case, the tubular member 10 is configured so that the outer peripheral portion of the inner end of the small-diameter cylinder 12 protruding into the interior of the wristwatch case 1 and the edge of the inner end of the through hole 8 of the case body 1a are fixedly mounted over the entire circumference of the through hole 8 of the case body 1a by welding such as laser welding.

[0019] like Figure 2 as well as Figure 3 As shown in FIG. 1 , the large diameter cylinder 13 is formed so that its outer diameter is larger than the inner diameter of the through hole 8 of the case body 1a of the wristwatch case 1 and smaller than the length (height) of the wristwatch case 1 in the vertical direction. That is, the large diameter cylinder 13 is formed so that its outer diameter is about three times the inner diameter of the through hole 8 and about half the length of the wristwatch case 1 in the vertical direction. In addition, the large diameter cylinder 13 is formed so that its inner diameter is the same as the inner diameter of the small diameter cylinder 12.

[0020] Therefore, if Figure 2 as well as Figure 3 As shown, the large diameter cylinder 13 is formed into a tubular shape in which the length between the inner diameter and the outer diameter (wall thickness) is sufficiently longer (thicker) than the length between the inner diameter and the outer diameter (wall thickness) of the small diameter cylinder 12. In addition, the large diameter cylinder 13 is formed so that its axial length is substantially the same as the axial length of the through hole 8 of the case body 1a of the wristwatch case 1.

[0021] In this case, if Figure 2 as well as Figure 3As shown in FIG. 1 , the large diameter cylinder 13 is formed such that the outer diameter of the outer side of the wristwatch case 1 is one step smaller than the outer diameter of the inner side of the wristwatch case 1. The large diameter cylinder 13 is formed such that the axial lengths of the inner side of the wristwatch case 1 side that is one step larger and the outer side of the opposite side that is one step smaller are substantially the same. The outer circumference of the outer side of the large diameter cylinder 13 that is one step smaller is provided with an external thread portion 13a of a locking mechanism 27 described later.

[0022] In addition, if Figure 2 as well as Figure 3 As shown in the figure, on the inner end surface of the large diameter cylinder 13 of the cylindrical part 10 corresponding to the outer surface of the wristwatch case 1 side, a waterproof groove 14 is provided in an annular shape along the outer circumference of the small diameter cylinder 12, which is recessed (deeper) in the axial direction of the large diameter cylinder 13. The cross-sectional shape of the waterproof groove 14 is formed into a quadrilateral shape. A waterproof gasket 15, which is a waterproof component, is provided in the waterproof groove 14.

[0023] like Figure 2 as well as Figure 3 As shown, the waterproof gasket 15 is formed into a ring shape by a synthetic rubber such as nitrile rubber (NBR), an elastomer or other elastic and hygroscopic material. The waterproof gasket 15 is elastically flattened and arranged in the waterproof groove 14. Thus, the waterproof gasket 15 is configured to achieve waterproofing between the inner end surface of the large-diameter cylinder 13 and the outer surface of the wristwatch case 1.

[0024] On the other hand, Figure 2 to Figure 5 As shown, the operating member 11 mounted on the tubular member 10 includes: an operating shaft portion 16, which is arranged in the tubular member 10 in a slidable and rotatable manner and protrudes to the outside of the tubular member 10; and an operating head portion 17, which is mounted on the outer end of the operating shaft portion 16 protruding from the tubular member 10 in a slidable manner along the axial direction thereof, and covers the outer end of the operating shaft portion 16 and the large-diameter cylinder portion 13 of the tubular member 10. The operating shaft portion 16 is formed of a metal such as stainless steel, titanium alloy, or a hard synthetic resin.

[0025] like Figure 2 to Figure 5 As shown in the figure, the operating shaft portion 16 includes: a shaft body portion 18, which is inserted into the tubular member 10; and a shaft operating portion 19, which is provided at the outer end of the shaft body portion 18 and protrudes to the outside of the tubular member 10. The shaft body portion 18 is formed so that its outer diameter is substantially the same as the inner diameter of the tubular member 10. In addition, the shaft body portion 18 is formed so that its axial length is substantially the same as the axial length of the tubular member 10.

[0026] Therefore, if Figure 2 to Figure 5As shown in the figure, when the outer end of the shaft body 18 is located at the outer end of the tubular member 10, the inner end is located at the inner end side of the tubular member 10, and in this state, the shaft body 18 is arranged in the tubular member 10 in a rotatable and slidable manner. In addition, on the outer periphery of the shaft body 18, a plurality of waterproof rings 20 are respectively provided in an annular shape along the outer periphery of the shaft body 18. These plurality of waterproof rings 20 are configured to achieve waterproofing between the outer peripheral surface of the shaft body 18 and the inner peripheral surface of the tubular member 10.

[0027] In addition, if Figure 2 to Figure 5 As shown in the figure, the shaft operating part 19 is integrally provided at the outer end of the shaft main body 18 located at the outer end of the tubular member 10, so that the shaft main body 18 can slide and rotate. That is, the shaft operating part 19 is formed in a substantially cylindrical shape having a bottom 19a provided at the outer end of the shaft main body 18. Inside the shaft operating part 19, a circular cavity recess 19b is provided along the axial direction of the operating member 11. The cavity recess 19b is formed so that its inner diameter is the same as or slightly larger than the outer diameter of the small diameter cylinder 12 of the tubular member 10.

[0028] In addition, if Figure 2 as well as Figure 3 As shown in the figure, the shaft operating part 19 includes an inner cylindrical part 21 with a small diameter on the outer periphery and an outer cylindrical part 22 with a large diameter on the outer periphery. The inner cylindrical part 21 with a small diameter is formed to have an outer diameter slightly smaller than the outer diameter of the external threaded part 13a provided on the outer periphery of the large diameter cylindrical part 13 of the tubular member 10, that is, slightly smaller than the inner diameter of the internal threaded part 28a of the locking mechanism 27 described later.

[0029] In this case, if Figure 2 as well as Figure 3 As shown, the small-diameter inner tube portion 21 is configured so that its inner end, i.e., the bottom 19a of the shaft operating portion 19, approaches the outer end, i.e., the outer end surface of the external threaded portion 13a, of the large-diameter tube portion 13 of the tubular member 10 in a contactable and detachable manner. Thus, the small-diameter inner tube portion 21 is configured so that its inner end, i.e., the bottom 19a of the shaft operating portion 19, does not abut against the outer end surface of the internal threaded portion 28a of the locking member 28. In this case, the small-diameter inner tube portion 21 is configured so that when the locking of the large-diameter tube portion 13 by the operating head 17 is released, the internal threaded portion 28a of the locking member 28 moves toward the outer periphery of the small-diameter inner tube portion 21.

[0030] like Figure 2 to Figure 5 As shown in FIG. 1 , the outer tube portion 22 of the large diameter is formed so that its outer diameter is approximately the same as the outer diameter of the inner portion of the large diameter tube portion 13, which is one step larger than the outer diameter of the locking member 28, and is larger than the inner diameter of the internal thread portion 28a of the locking member 28. Thus, the outer end surface of the locking member 28 abuts against the inner end of the outer tube portion 22 of the large diameter. In this case, the outer diameter of the outer tube portion 22 of the large diameter is approximately the same as the outer diameter of the inner portion 28a of the large diameter tube portion 13. Figure 2as well as Figure 3 The first operation plane portion 23a of the first idle rotation prevention portion 23 described later is provided correspondingly and is therefore drawn small.

[0031] That is, Figure 4 as well as Figure 5 As shown in FIG. 1 , the outer tube portion 22 of the large diameter is formed so that its outer diameter is sufficiently larger than the outer diameter of the inner tube portion 21 of the small diameter. Figure 3 As shown, the large-diameter outer tube portion 22 is constructed so that when the locking mechanism 27 is released from the locking of the operating head 17, the internal threaded portion 28a of the locking component 28 moves toward the outer periphery of the small-diameter inner tube portion 21, and the outer end portion of the locking component 28 abuts against the inner end portion of the large-diameter outer tube portion 22 in a contactable and detachable manner.

[0032] In this case, if Figure 2 as well as Figure 3 As shown in the figure, the large-diameter outer tube portion 22 is configured to be slidable in the axial direction of the operating head 17 and rotate together with the operating head 17. That is, the outer peripheral surface of the large-diameter outer tube portion 22 and the inner peripheral surface of the operating head 17 are provided with a first idling prevention portion 23 for rotating the outer tube portion 22 through the operating head 17.

[0033] On the other hand, Figure 2 to Figure 5 As shown, the operating head 17 includes: a cover portion 24, into which the shaft operating portion 19 of the operating shaft portion 16 is inserted and covers the large diameter cylindrical portion 13 of the cylindrical member 10; and a spring member 25 as a biasing member, which biases the cover portion 24 in a direction of pushing out toward the outside of the wristwatch case 1. The cover portion 24 is formed in a substantially cylindrical shape with the outer end portion blocked by a metal such as a titanium alloy.

[0034] like Figure 2 to Figure 5 As shown in FIG. 1 , the cover portion 24 is formed in a substantially circular shape with an outer diameter that is sufficiently larger than the outer diameter of the large diameter cylinder portion 13 of the tubular member 10 and is about 2 / 3 of the length in the vertical direction of the wristwatch case 1. The cover portion 24 includes a small diameter cover portion 24a into which the shaft operating portion 19 of the operating shaft portion 16 is inserted, and a large diameter cover portion 24b into which the large diameter cylinder portion 13 of the tubular member 10 and the locking mechanism 27 are inserted and cover them.

[0035] In this case, if Figure 2 , Figure 3 , Figure 5 As shown, the first idling prevention portion 23 includes: a first operating plane portion 23a, which is arranged on the outer peripheral surface of the outer tube portion 22 of the shaft operating portion 19; and a first cover plane portion 23b, which is arranged on the inner peripheral surface of the small diameter cover portion 24a in the cover portion 24 of the operating head 17 and is pressed corresponding to the first operating plane portion 23a of the outer tube portion 22.

[0036] Therefore, if Figure 2 , Figure 3 , Figure 5 As shown, the first idling prevention portion 23 is constructed so that when the first operating plane portion 23a of the outer tube portion 22 and the first cover plane portion 23b of the small diameter cover portion 24a are correspondingly abutted, the large diameter outer tube portion 22 and the operating head 17 can slide relative to each other along the axial direction, and the outer tube portion 22 and the operating head 17 can rotate as a whole without idling.

[0037] In addition, if Figure 2 , Figure 3 , Figure 5 As shown in FIG. 1 , a spring guide 26 is provided in the cover 24. The spring guide 26 is used to guide the spring member 25, is formed in a round bar shape, and is provided at a substantially central portion of the inner end surface of the cover 24 along the axial direction of the cover 24. That is, the spring guide 26 is formed to have an outer diameter substantially the same as the outer diameter of the shaft body 18.

[0038] In addition, if Figure 2 , Figure 3 , Figure 5 As shown, the spring guide 26 is formed to have an axial length shorter than the axial length of the hollow recess 19b of the shaft operating part 19. Thus, when the shaft operating part 19 is inserted into the cover 24, the spring guide 26 is arranged without contacting the hollow recess 19b of the shaft operating part 19.

[0039] like Figure 2 to Figure 5 As shown in the figure, the spring member 25 is a coil spring, and is configured to be arranged in the hollow recessed portion 19b of the shaft operating portion 19 in a state of being arranged on the outer periphery of the spring guide portion 26. That is, the spring member 25 is formed to have an inner diameter slightly larger than the outer diameter of the spring guide portion 26, and an outer diameter smaller than the inner diameter of the hollow recessed portion 19b of the shaft operating portion 19. In addition, one end of the spring member 25 abuts against the inner surface of the bottom 19a in the hollow recessed portion 19b of the shaft operating portion 19, and the other end abuts against the inner end surface located on the outer side of the cover portion 24.

[0040] Therefore, if Figure 2 to Figure 5 As shown, the spring component 25 applies force to the cover portion 24 in a direction of pushing it outward from the wristwatch case 1, is compressed in the axial direction when the cover portion 24 is locked by the locking mechanism 27, and extends in the axial direction when the locking mechanism 27 releases the lock on the cover portion 24.

[0041] However, if Figure 2 as well as Figure 3As shown, the operating shaft portion 16 is configured such that a winding core (not shown) is inserted and connected to a connecting hole 18a provided at the inner end of the shaft body portion 18. Thus, the winding core is configured to slide and rotate together with the operating shaft portion 16 when the operating head portion 17 is operated to slide and rotate the operating shaft portion 16.

[0042] In this case, although not shown in the figure, the winding core is configured to rotate idly relative to the watch module 7 when it is pressed into the watch module 7. In addition, the winding core is configured to be connected to the watch module 7 when it is pulled out one level in a state where the lock based on the locking mechanism 27 is released, and in this state, it rotates according to the rotation operation of the operating head 17 to perform function settings and selections such as time correction and mode switching.

[0043] That is, the operating shaft portion 16 is configured as follows: Figure 2 As shown, when the shaft main body 18 is pressed into the inner side of the watch case 1 and the winding core (not shown) is pressed into the interior of the watch module 7, the connection between the winding core and the watch module 7 is released. Even if the shaft operating part 19 rotates and the winding core rotates in this state, the rotation is not transmitted to the watch module 7, and function settings and selections such as time correction and mode switching are not performed.

[0044] In addition, the operating shaft portion 16 is configured so that when the shaft body portion 18 is moved from Figure 3 In the state shown, the watch is pulled out toward the outside of the watch case 1. When the winding core (not shown) slides in the direction of being pulled out from the watch module 7, the winding core is connected to the watch module 7. If the shaft operating part 19 rotates and the winding core rotates in this state, the rotation is transmitted to the watch module 7, and function settings and selections such as time correction and mode switching can be performed.

[0045] On the other hand, Figure 2 to Figure 5 As shown, the locking mechanism 27 includes: a locking member 28 that is locked to the large diameter cylindrical portion 13 of the cylindrical member 10 by a rotational action; and a rotation transmission member 29 that is mounted in a manner that allows the locking member 28 to slide in the axial direction and rotates the locking member 28 according to the rotation operation of the operating member 11. The locking member 28 is arranged on the inner peripheral surface side of the rotation transmission member 29. The locking member 28 is formed into a ring shape by a metal such as stainless steel.

[0046] like Figure 2 to Figure 5As shown in FIG. 1 , the locking member 28 is provided with an internal thread portion 28a on the inner circumferential surface. The internal thread portion 28a is screwed with the external thread portion 13a provided on the outer circumference of the large diameter cylinder portion 13 of the tubular member 10. The locking member 28 is formed so that the axial length is slightly longer than the axial length of the external thread portion 13a of the large diameter cylinder portion 13 of the tubular member 10. Thus, when the internal thread portion 28a of the locking member 28 is screwed with the external thread portion 13a, the outer end surface of the locking member 28 protrudes toward the outer side of the wristwatch case 1 more than the outer end surface of the large diameter cylinder portion 13.

[0047] like Figure 2 to Figure 5 As shown in FIG. 1 , the locking member 28 is formed such that its outer diameter is larger than the inner diameter of the small diameter cover portion 24a of the operating head 17 and smaller than the inner diameter of the large diameter cover portion 24b. Thus, when the locking member 28 is released from the large diameter cylinder portion 13 of the tubular member 10, the cover portion 24 of the operating head 17 is pushed out toward the outside of the wristwatch case 1 by the elastic force of the spring member 25.

[0048] Therefore, if Figure 2 to Figure 5 As shown, when the cover portion 24 of the operating head 17 is pushed toward the outer side of the watch case 1 by the elastic force of the spring portion 25, the internal thread portion 28a of the locking portion 28 moves toward and corresponds to the outer periphery of the small-diameter inner cylinder portion 21 of the shaft operating portion 19. In this state, the outer end portion of the locking portion 28 abuts against the inner end surface of the large-diameter outer cylinder portion 22.

[0049] like Figure 2 to Figure 5 As shown, the rotation transmission member 29 is formed into a ring shape by a metal such as stainless steel. The rotation transmission member 29 is formed so that its inner diameter is substantially the same as the outer diameter of the locking member 28, and its axial length is substantially the same as the axial length of the locking member 28. The rotation transmission member 29 is formed so that its outer diameter is the same as or slightly larger than the inner diameter of the large diameter cover portion 24b of the cover portion 24 of the operation head 17.

[0050] Therefore, if Figure 2 to Figure 5 As shown, the rotation transmission member 29 is fixedly mounted by press-fitting in the large diameter cover portion 24b of the cover portion 24 of the operating head 17 in a state where the locking member 28 is arranged inside. Therefore, the rotation transmission member 29 is configured so as to rotate integrally with the operating head 17 without sliding relative to the cover portion 24, and transmit the rotation to the locking member 28, so that the locking member 28 rotates.

[0051] In this case, if Figure 2 to Figure 5As shown, the locking member 28 and the rotation transmission member 29 are configured to slide relative to each other through the second idling prevention portion 30 and rotate integrally. That is, the second idling prevention portion 30 includes: a second locking plane portion 30a, which is provided on the outer peripheral surface of the locking member 28; and a second transmission plane portion 30b, which is provided on the inner peripheral surface of the rotation transmission member 29 and is pressed corresponding to the second locking plane portion 30a of the locking member 28.

[0052] Therefore, if Figure 4 as well as Figure 5 As shown, the second idling prevention portion 30 is constructed so that when the second locking plane portion 30a of the locking member 28 and the second transmission plane portion 30b of the rotation transmission member 29 are in corresponding abutment with each other, the locking member 28 and the rotation transmission member 29 can be relatively slidable in the axial direction, so that the locking member 28 and the rotation transmission member 29 can rotate as a whole without idling.

[0053] In addition, if Figure 2 to Figure 6 As shown in FIG. 1 , the locking mechanism 27 includes a disengagement prevention portion 31 that prevents the locking member 28 from disengaging toward the wristwatch case 1 relative to the rotation transmission member 29. The disengagement prevention portion 31 includes a large-diameter abutment portion 31a provided on the outer periphery of the locking member 28 and a small-diameter abutment portion 31b provided on the inner periphery of the rotation transmission member 29. The large-diameter abutment portion 31a is provided on the outer side of the outer periphery of the locking member 28. In addition, the small-diameter abutment portion 31b is provided on the inner side of the inner periphery of the rotation transmission member 29.

[0054] like Figure 2 to Figure 6 As shown, the outer diameter of the large diameter contact portion 31a of the locking member 28 is the same as the inner diameter of the rotation transmission member 29, and is formed to be larger than the inner diameter of the small diameter contact portion 31b of the rotation transmission member 29. In addition, the small diameter contact portion 31b of the rotation transmission member 29 is the same as the outer diameter of the locking member 28, and is formed to be smaller than the outer diameter of the large diameter contact portion 31a of the locking member 28.

[0055] In this case, Figure 2 as well as Figure 3 In the embodiment, the outer diameter of the large-diameter abutment portion 31a is also set corresponding to the second locking plane portion 30a of the second idling prevention portion 30, and is therefore depicted to be smaller. Figure 4 as well as Figure 5 As shown, the large diameter contact portion 31a is originally formed to have an outer diameter sufficiently larger than the inner diameter of the small diameter contact portion 31b. Thus, the inner end surface of the large diameter contact portion 31a of the locking member 28 of the anti-detachment portion 31 abuts against the outer end surface of the small diameter contact portion 31b of the rotation transmission member 29 in a contactable and detachable manner.

[0056] Therefore, if Figure 3As shown, the anti-slip portion 31 is constructed so that when the rotation transfer component 29 moves toward the outer side of the watch case 1 together with the cover portion 24 of the operating head 17, the inner end surface of the large diameter abutment portion 31a of the locking component 28 abuts against the outer end surface of the small diameter abutment portion 31b of the rotation transfer component 29, so that the locking component 28 moves together with the rotation transfer component 29, and the locking component 28 will not fall off from the rotation transfer component 29 to the side of the watch case 1.

[0057] In this case, if Figure 2 to Figure 6 As shown in FIG. 1 , a buffer member 32 is provided in the large diameter cover portion 24b of the cover portion 24 of the operating head portion 17. The buffer member 32 is formed into an annular shape by a buffer material such as α gel, silicone rubber, etc. That is, the buffer member 32 is arranged between the outer end surface of the locking mechanism 27 in the state where the locking member 28 is arranged in the rotation transmission member 29 and the outer end surface of the large diameter cover portion 24b of the cover portion 24 corresponding to the outer end surface in the axial direction, that is, the step surface between the large diameter cover portion 24b and the small diameter cover portion 24a.

[0058] Therefore, if Figure 2 as well as Figure 6 As shown, when the operating head 17 is locked by the locking mechanism 27, when the cover portion 24 of the operating head 17 is impacted from the outside, the buffer component 32 is clamped between the large diameter cover portion 24b of the cover portion 24 and the locking component 28 of the locking mechanism 27 and is compressed in the axial direction, thereby buffering the impact from the outside.

[0059] In addition, if Figure 2 as well as Figure 6 As shown, the buffer component 32 is constructed so that even if the internal thread portion 28a of the locking component 28 of the locking mechanism 27 is screwed into the external thread portion 13a of the large diameter cylinder portion 13, when the buffer component 32 is compressed in the axial direction due to an impact from the outside, the rotation transmission component 29 moves toward the side of the watch case 1 together with the cover portion 24, and no impact is applied to the internal thread portion 28a and the external thread portion 13a.

[0060] like Figure 2 As shown, such a switch device 4 is constructed so that when the operating head 17 is locked to the tubular component 10 by the locking mechanism 27, while overcoming the elastic force of the spring component 25 and pressing the operating head 17 toward the large diameter cylinder portion 13 of the tubular component 10, if the cover portion 24 of the operating head 17 is rotated, the rotation transmission component 29 rotates together with the rotation of the cover portion 24 to rotate the locking component 28, so that the internal thread portion 28a of the locking component 28 is screwed into the external thread portion 13a of the large diameter cylinder portion 13 of the tubular component 10.

[0061] That is, Figure 2As shown, when the internal thread portion 28a of the locking member 28 is screwed with the external thread portion 13a of the large diameter cylindrical portion 13 of the cylindrical member 10, the second locking plane portion 30a of the locking member 28 of the second idling prevention portion 30 is brought into contact with the second transmission plane portion 30b of the rotation transmission member 29. In addition, the switch device 4 is configured such that the rotation transmission member 29 rotates according to the rotation operation of the operating head 17 and rotates the locking member 28, so that the internal thread portion 28a of the locking member 28 is screwed with the external thread portion 13a of the large diameter cylindrical portion 13 of the cylindrical member 10.

[0062] In addition, if Figure 2 as well as Figure 3 As shown, the switch device 4 is constructed so that when the locking of the large diameter cylinder portion 13 of the tubular component 10 by the operating head 17 is released, if the cover portion 24 of the operating head 17 is rotated in the opposite direction to release the screwing of the internal thread portion 28a of the locking component 28 and the external thread portion 13a of the large diameter cylinder portion 13 of the tubular component 10, the cover portion 24 of the operating head 17 is pushed toward the outside of the watch case 1 together with the locking mechanism 27 by the elastic force of the spring component 25.

[0063] In addition, if Figure 3 As shown, the switch device 4 is constructed so that when the locking of the large diameter cylindrical portion 13 of the cylindrical portion 10 by the operating head 17 is released and the cover portion 24 and the locking mechanism 27 are pushed toward the outside of the watch case 1 by the elastic force of the spring portion 25, the locking portion 28 and the rotation transmission portion 29 are moved toward the outside of the watch case 1 together with the cover portion 24 through the anti-slip portion 31 of the locking mechanism 27.

[0064] That is, Figure 3 As shown, the switch device 4 is constructed so that when the locking of the cylindrical part 10 by the operating head 17 is released and the cover part 24 and the locking mechanism 27 of the operating head 17 are pushed toward the outside of the watch case 1 by the elastic force of the spring part 25, the inner end surface of the large diameter abutment part 31a of the locking part 28 in the anti-detachment part 31 abuts against the outer end surface of the small diameter abutment part 31b of the rotation transmission part 29.

[0065] In this case, if Figure 3 As shown, in the switch device 4, when the lock of the operating head 17 relative to the cylindrical member 10 is released and the cover 24 and the locking mechanism 27 of the operating head 17 are pushed toward the outside of the wristwatch case 1 by the elastic force of the spring member 25, the operating shaft 16 does not slide in the axial direction. In addition, the switch device 4 is configured such that the internal threaded portion 28a of the locking member 28 moves toward the outer periphery of the small-diameter inner cylindrical portion 21 of the shaft operating portion 19 of the operating shaft 16 together with the rotation transmission member 29 by the elastic force of the spring member 25, and the outer end portion of the locking member 28 is pressed against the inner end portion of the large-diameter outer cylindrical portion 22.

[0066] And, if Figure 3 As shown, the switch device 4 is constructed such that, when the operating head 17 is unlocked relative to the cylindrical part 10, the cover part 24 and the locking mechanism 27 of the operating head 17 are pushed toward the outside of the watch case 1 by the elastic force of the spring part 25. If the operating head 17 is pulled out one level toward the outside of the watch case 1, the outer end surface of the locking part 28 abuts against the inner end surface of the large-diameter outer cylindrical part 22 of the shaft operating part 19, so that the locking part 28 pulls the operating shaft part 16 toward the outside of the watch case 1.

[0067] In this case, the switch device 4 is configured so that when the cover portion 24 of the operating head portion 17 and the locking mechanism 27 move the operating shaft portion 16 from Figure 3 When the wristwatch case 1 is pulled out in the illustrated state, the winding core (not shown) connected to the connecting hole 18 a of the shaft body 18 slides in the direction of being pulled out from the wristwatch module 7 , and the winding core is connected to the wristwatch module 7 .

[0068] In addition, the switch device 4 is configured such that a winding core (not shown) is provided from Figure 3 When the winding core is connected to the watch module 7 by sliding in the direction of being pulled out from the watch module 7 in the state shown, if the operating head 17 is rotated, the rotation is transmitted to the winding core via the operating shaft 16, and the rotation of the winding core is transmitted to the watch module 7 to perform function settings and selections such as time correction and mode switching.

[0069] Next, the situation of assembling such a wristwatch will be described.

[0070] In this case, first, the watch glass 5 is mounted together with the glass gasket 5a to the upper opening of the watch case 1. In this state, the push button switches 3 are mounted on the 2 o'clock side, the 4 o'clock side, the 8 o'clock side, and the 10 o'clock side of the watch case 1, respectively, and the cylindrical member 10 of the switch device 4 is mounted in the through hole 8 on the 3 o'clock side of the watch case 1.

[0071] In this case, a waterproof gasket 15 is pre-arranged in the waterproof groove 14 provided on the inner side of the large diameter cylinder 13 of the tubular member 10. In this state, the small diameter cylinder 12 of the tubular member 10 is inserted from the outside into the through hole 8 of the case body 1a of the wristwatch case 1, and the inner side of the large diameter cylinder 13 of the tubular member 10 is pressed against the outer surface of the case body 1a. Then, the waterproof gasket 15 is elastically flattened and pressed into the waterproof groove 14. Thus, waterproofing between the outer peripheral surface of the tubular member 10 and the inner peripheral surface of the through hole 8 can be reliably achieved.

[0072] In this case, the inner end of the small-diameter cylindrical portion 12 of the cylindrical member 10 protrudes into the interior of the case body 1a of the wristwatch case 1. In this state, the outer peripheral portion of the inner end of the small-diameter cylindrical portion 12 protruding into the interior of the case body 1a and the edge of the inner end of the through hole 8 of the case body 1a are fixedly mounted over the entire circumference of the through hole 8 of the wristwatch case 1 by welding such as laser welding. As a result, the cylindrical member 10 does not fall out of the wristwatch case 1, but is firmly mounted in the through hole 8 of the case body 1a of the wristwatch case 1.

[0073] Then, the watch module 7 is assembled in the wristwatch case 1, and the operating member 11 is assembled in the cylindrical member 10 of the switch device 4. In this case, first, a plurality of waterproof rings 20 are installed on the outer periphery of the shaft body 18 of the operating shaft portion 16. In this state, the operating head 17 is installed on the shaft operating portion 19 of the operating shaft portion 16. At this time, the spring member 25 is pre-arranged on the outer periphery of the spring guide portion 26 provided in the cover portion 24 of the operating head 17.

[0074] Then, the spring guide 26 of the cover 24 is inserted into the hollow recess 19b of the shaft operating portion 19 of the operating shaft portion 16 together with the spring member 25. At this time, the first operating plane portion 23a of the first idle rotation prevention portion 23 provided on the outer peripheral surface of the outer cylindrical portion 22 of the shaft operating portion 19 is made to correspond to the first cover plane portion 23b provided on the inner peripheral surface of the small-diameter cover portion 24a, and the shaft operating portion 19 is inserted into the small-diameter cover portion 24a of the cover 24. Thus, the shaft operating portion 19 rotates integrally with the cover 24 and is arranged in the cover 24 in a state where it can slide in the axial direction.

[0075] In this state, the locking mechanism 27 is assembled in the large diameter cover portion 24b of the cover portion 24. At this time, the locking mechanism 27 is assembled in advance. In this case, when the annular locking member 28 is inserted into the annular rotation transmission member 29, the second locking plane portion 30a of the second idling prevention portion 30 provided on the outer peripheral surface of the locking member 28 corresponds to the second transmission plane portion 30b provided on the inner peripheral surface of the rotation transmission member 29.

[0076] In this state, if the annular locking member 28 is inserted into the annular rotation transmission member 29, the locking member 28 rotates together with the rotation transmission member 29 while the locking member 28 can slide relative to the rotation transmission member 29. In addition, at this time, the outer end of the small diameter contact portion 31b of the rotation transmission member 29 contacts the inner end of the large diameter contact portion 31a of the locking member 28, which is the anti-detachment portion 31. Thus, the locking mechanism 27 is assembled in a manner that the locking member 28 does not come out toward the wristwatch case 1 side.

[0077] When the locking mechanism 27 assembled in this way is installed in the cover portion 24 of the operating head 17, the annular buffer member 32 is arranged in advance in the large diameter cover portion 24b of the cover portion 24. In this state, the rotation transmission member 29 of the locking mechanism 27 is inserted into the large diameter cover portion 24b of the cover portion 24 by press-fitting, so that the rotation transmission member 29 of the locking mechanism 27 is fixedly installed in the large diameter cover portion 24b of the cover portion 24.

[0078] In this state, if Figure 3 As shown, the cover portion 24 of the operating head 17 is pushed out toward the outside of the wristwatch case 1 by the elastic force of the spring member 25. Therefore, the internal thread portion 28a of the locking member 28 of the locking mechanism 27 moves toward the outer periphery of the small-diameter inner tube portion 21 in the shaft operating portion 19 of the operating member 11, and the outer end of the internal thread portion 28a abuts against the inner end of the large-diameter outer tube portion 22. As a result, the operating head 17 of the operating member 11 is mounted on the shaft operating portion 19 without being disengaged from the shaft operating portion 19 of the operating shaft portion 16.

[0079] In this way, since the rotation transmission member 29 is pressed into the cover portion 24, the cover portion 24 and the rotation transmission member 29 are integrated and do not separate from each other. In addition, the outer peripheral surface of the locking member 28 and the inner peripheral surface of the rotation transmission member 29 are both formed with steps, and the steps of the outer peripheral surface of the locking member 28 and the steps of the inner peripheral surface of the rotation transmission member 29 are arranged correspondingly, so that the axial position is restricted.

[0080] Then, the shaft body 18 of the operating shaft 16 is inserted from the outside of the wristwatch case 1 into the inside of the tubular member 10. At this time, the outer end of the winding core (not shown) is previously inserted and connected to the connecting hole 18a provided on the inner end of the shaft body 18 of the operating shaft 16. In this state, the winding core is inserted into the tubular member 10 together with the operating shaft 16, and the watch module 7 is inserted and installed.

[0081] At this time, when the shaft body 18 of the operating shaft portion 16 is inserted into the small diameter cylinder portion 12 of the tubular member 10, the small diameter cylinder portion 12 and the shaft body 18 are waterproofed by the plurality of waterproof gaskets 15. In addition, at this time, when the locking mechanism 27 of the operating head 17 is close to the external threaded portion 13a of the large diameter cylinder portion 13 disposed on the tubular member 10, the winding core is installed in the watch module 7 in a state in which it can slide and rotate.

[0082] In this state, the winding core slides according to the sliding action of the operating shaft portion 16 inserted into the cylindrical member 10, and the winding core rotates according to the rotation action of the operating shaft portion 16. Thus, the switch device 4 is assembled. Thereafter, the back cover 6 is attached to the lower part of the watch case 1 together with the waterproof gasket 6a, thereby assembling the watch.

[0083] Next, the operation of the switch device 4 of such a wristwatch will be described.

[0084] When the wristwatch is worn on the wrist, first, the operating head 17 of the switch device 4 is locked to the large diameter cylinder 13 of the cylindrical member 10 by the locking mechanism 27. At this time, the cover 24 of the operating head 17 is moved toward the large diameter cylinder 13 against the elastic force of the spring member 25, and the inner end of the internal thread 28a of the locking member 28 is pressed against the outer end of the external thread 13a of the large diameter cylinder 13.

[0085] In this state, when the cover portion 24 is rotated, the rotation transmission member 29 of the locking mechanism 27 rotates together with the cover portion 24, and the rotation of the rotation transmission member 29 is transmitted to the locking member 28 via the first idling prevention portion 23, and the locking member 28 rotates. By the rotation of the locking member 28, the internal thread portion 28a of the locking member 28 is screwed into the external thread portion 13a of the large diameter cylindrical portion 13 and tightened.

[0086] At this time, the operating shaft portion 16 is not pressed into the cylindrical member 10, and the inner end portion, i.e., the bottom portion 19a, of the shaft operating portion 19 of the operating shaft portion 16 receives the elastic force of the spring member 25 and compresses the spring member 25. Therefore, the bottom portion 19a of the shaft operating portion 19 is maintained close to the outer end portion, i.e., the outer end portion of the external thread portion 13a, of the large diameter cylindrical portion 13. Thus, the operating head portion 17 of the switch device 4 is locked to the large diameter cylindrical portion 13 of the cylindrical member 10.

[0087] At this time, the inner end portion, i.e., the bottom portion 19a, of the shaft operating portion 19 of the operating shaft portion 16 compresses the spring member 25 and approaches the outer end portion of the large diameter cylinder portion 13, so that the winding core (not shown) embedded in and connected to the connecting hole 18a provided on the inner end portion of the shaft main body portion 18 of the operating shaft portion 16 is not pressed into the watch module 7. In addition, in this state, the operating head portion 17 is locked to the large diameter cylinder portion 13 of the tubular member 10, so the operating member 11 does not rotate, and thus the winding core does not rotate in the watch module 7.

[0088] In this state, when the cover portion 24 of the operating head 17 receives an impact from the outside, the outer end of the large-diameter cover portion 24b of the cover portion 24, i.e., the step portion between the large-diameter cover portion 24b and the small-diameter cover portion 24a, is pressed against the buffer member 32 due to the impact. At this time, the buffer member 32 is sandwiched and compressed between the outer end of the large-diameter cover portion 24b, i.e., the step portion, and the outer end of the locking member 28 of the locking mechanism 27. Thus, the buffer member 32 buffers the impact.

[0089] In addition, at this time, the rotation transmission member 29 of the locking mechanism 27 slides axially relative to the locking member 28 together with the cover portion 24 that has been impacted. Therefore, even if the internal thread portion 28a of the locking member 28 is screwed with the external thread portion 13a of the large diameter cylindrical portion 13 of the tubular member 10, no impact is applied to these internal thread portion 28a and external thread portion 13a.

[0090] Thus, damage to the internal thread portion 28a and the external thread portion 13a caused by impact is prevented. In addition, the impact on the cover portion 24 is also buffered by the spring member 25, so the operating shaft portion 16 is not impacted. Thus, the winding core (not shown) is not pressed into the watch module 7 due to the impact, thereby preventing the watch module 7 from being damaged.

[0091] On the other hand, when setting or selecting functions such as time correction or mode switching, first, the locking mechanism 27 is used to release the locking of the large diameter cylindrical portion 13 of the cylindrical member 10 by the operating head 17. At this time, the cover portion 24 of the operating head 17 is rotated in the opposite direction to rotate the rotation transmission member 29 of the locking mechanism 27. The rotation transmission member 29 rotates the locking member 28 in the same direction via the second idling prevention portion 30.

[0092] Furthermore, when the locking member 28 rotates, the screwing of the internal threaded portion 28a of the locking member 28 to the external threaded portion 13a of the large diameter cylinder portion 13 is released. Then, the operating head 17 is pushed toward the outside of the wristwatch case 1 by the elastic force of the spring member 25, and the internal threaded portion 28a of the locking member 28 moves toward the outer periphery of the small diameter inner cylinder portion 21 of the shaft operating portion 19 to correspond. In this state, the outer end of the locking member 28, that is, the outer end of the internal threaded portion 28a, abuts against the inner end of the large diameter outer cylinder portion 22 in the shaft operating portion 19 of the operating shaft portion 16.

[0093] At this time, the operating shaft 16 does not slide in the axial direction, and therefore the winding core (not shown) connected to the connecting hole 18a of the shaft body 18 does not slide either. Therefore, the winding core maintains a state of being arranged in the watch module 7 in an idle state. That is, even if the cover 24 of the operating head 17 rotates to rotate the operating shaft 16 and the winding core rotates along with the rotation of the operating shaft 16, the rotation of the winding core is not transmitted to the watch module 7, so function settings and selections such as time correction and mode switching are not performed.

[0094] In this state, the operating head 17 is pulled out toward the outside of the wristwatch case 1. At this time, since the outer end of the locking member 28 in the cover portion 24 abuts against the inner end of the large-diameter outer tube portion 22 in the shaft operating portion 19 of the operating shaft portion 16, the rotation transmission member 29 of the locking mechanism 27 pulls out the shaft operating portion 19 together with the spring member 25 through the pulling out operation of the operating head 17. Then, the shaft body portion 18 of the operating shaft portion 16 slides in the axial direction and is pulled out one step, and the winding core (not shown) connected to the shaft body portion 18 is pulled out.

[0095] Thus, when the winding core is pulled out, the rotation of the winding core is transmitted to the watch module 7. In this state, when the cover portion 24 of the operating head portion 17 is rotated, the rotation is transmitted to the operating shaft portion 16 through the first idle rotation prevention portion 23, and the shaft body portion 18 of the operating shaft portion 16 rotates. Then, the winding core rotates with the rotation of the operating shaft portion 16, and the rotation is transmitted to the watch module 7, so that function settings and selections such as time correction and mode switching are performed.

[0096] Thus, according to the switch device 4 of the wristwatch, there is provided a wristwatch case 1 provided with the through hole 8, a tubular member 10 at least a part of which is inserted into the through hole 8 of the wristwatch case 1, an operating member 11 arranged from the inside of the tubular member 10 to the outside of the tubular member 10, and a locking mechanism 27 for locking the operating member 11 to the tubular member 10. The locking mechanism 27 includes a locking member 28 that is locked to the tubular member 10 by the rotation of the operating member 11, and a rotation transmission member 29 that is a member different from the locking member 28 and rotates the locking member 28 according to the rotation operation of the operating member 11. Thus, it is possible to prevent the locking mechanism 27 from being damaged by an impact from the outside.

[0097] That is, in the switch device 4 of the wristwatch, the locking mechanism 27 includes: a locking member 28 that is locked to the tubular member 10 by the rotational action of the operating member 11; and a rotation transmission member 29 that is a member different from the locking member 28 and rotates the locking member 28 in accordance with the rotational operation of the operating member 11. Thus, in a state where the locking member 28 is locked to the tubular member 10, when the operating member 11 is impacted from the outside, the rotation transmission member 29 can slide in the axial direction relative to the locking member 28, so that the impact is not applied to the locking member 28 and the tubular member 10, and thus the locking mechanism 27 can be prevented from being damaged by the impact.

[0098] In this case, in the switch device 4 of the wristwatch, the tubular member 10 includes: a small diameter tubular portion 12 inserted into the through hole 8 of the wristwatch case 1; and a large diameter tubular portion 13 protruding to the outside of the wristwatch case 1. The locking member 28 is arranged on the inner peripheral surface side of the rotation transmission member 29 and is locked to the large diameter tubular portion 13 of the tubular member 10, so that the large diameter tubular portion 13 can protrude to the outside of the wristwatch case 1 and be reliably fixed to the through hole 8 of the wristwatch case 1, and the locking member 28 can be reliably and well fixed to the large diameter tubular portion 13.

[0099] In addition, in the switch device 4 of the wristwatch, the operating member 11 includes: an operating shaft portion 16 disposed in the tubular member 10; and an operating head portion 17 mounted on the outside of the operating shaft portion 16 in a manner that allows sliding in the axial direction and covers the large-diameter cylinder portion 13 of the tubular member 10. Thus, in a state where the operating head portion 17 is locked to the large-diameter cylinder portion 13 by the locking mechanism 27, when the operating head portion 17 is impacted from the outside, the operating head portion 17 can slide relative to the operating shaft portion 16 along with the sliding of the rotation transmission member 29 relative to the locking member 28. Therefore, even if the operating head portion 17 slides, the impact is not transmitted to the operating shaft portion 16, thereby preventing the watch module 7 in the wristwatch case 1 from being damaged.

[0100] In this case, the switch device 4 of the wristwatch is provided with a spring member 25, i.e., a force applying member, which applies force to the operating head 17 toward the outside. Thus, when the operating head 17 is locked to the large-diameter cylinder 13 by the locking mechanism 27, when the operating head 17 is impacted from the outside, even if the operating head 17 slides relative to the operating shaft 16, the impact can be buffered by the elastic force of the spring member 25, thereby preventing the impact from being transmitted to the operating shaft 16, thereby preventing the watch module 7 in the wristwatch case 1 from being damaged.

[0101] In addition, the switch device 4 of the wristwatch is provided with a first idle rotation preventing portion 23, which rotates the operating shaft portion 16 and the operating head portion 17 integrally in a state where the operating shaft portion 16 can slide in the axial direction relative to the operating head portion 17. Thus, the operating head portion 17 can slide in the axial direction by the first idle rotation preventing portion 23, and the rotation of the operating head portion 17 can be reliably transmitted to the operating shaft portion 16, so that the operating shaft portion 16 can rotate well.

[0102] That is, the first idle rotation preventing portion 23 includes: a first operation plane portion 23a, which is provided on the outer peripheral surface of the shaft operation portion 19 of the operation shaft portion 16; and a first cover plane portion 23b, which is provided on the inner peripheral surface of the cover portion 24 of the operation head portion 17. Therefore, the first operation plane portion 23a and the first cover plane portion 23b can be abutted against each other. Thus, the operation head portion 17 can be axially slidable relative to the operation shaft portion 16, and the rotation of the operation head portion 17 can be reliably transmitted to the operation shaft portion 16.

[0103] In addition, in the switch device 4 of the wristwatch, the rotation transmission member 29 of the locking mechanism 27 is fixed by being pressed into the inside of the operating head 17 of the operating member 11, thereby enabling the rotation transmission member 29 to rotate integrally with the operating head 17 and enabling the rotation transmission member 29 to move axially integrally with the operating head 17. Thus, the rotation transmission member 29 can be rotated by the rotation operation of the operating head 17, and can be moved in the same direction as the operating head 17 moves in the axial direction.

[0104] In this case, the rotation transmission member 29 of the locking mechanism 27 is fixed to the inside of the operating head 17 by being pressed in, so that the rotation transmission member 29 can be embedded and installed in the inside of the operating head 17 together with the locking member 28 in a state where the shaft operating portion 19 of the operating shaft portion 16 is arranged in the operating head 17. Therefore, it can be installed so that the operating shaft portion 16 will not fall out of the operating head 17 in a state where the locking member 28 of the locking mechanism 27 can slide relative to the shaft operating portion 19 of the operating shaft portion 16.

[0105] In addition, in the switch device 4 of the wristwatch, the lock mechanism 27 includes a second idle rotation preventing portion 30, which rotates the lock member 28 and the rotation transmitting member 29 together in a state where the lock member 28 is slidable relative to the rotation transmitting member 29. Thus, the rotation transmitting member 29 can be slid in the axial direction relative to the lock member 28 by the second idle rotation preventing portion 30, and the rotation of the rotation transmitting member 29 can be reliably transmitted to the lock member 28.

[0106] That is, the second idle rotation prevention portion 30 includes: a second locking plane portion 30a provided on the outer peripheral surface of the locking member 28; and a second transmission plane portion 30b provided on the inner peripheral surface of the rotation transmission member 29. Therefore, the second locking plane portion 30a and the second transmission plane portion 30b can be brought into contact with each other, so that the rotation transmission member 29 can slide in the axial direction relative to the locking member 28, and the rotation of the rotation transmission member 29 can be reliably transmitted to the locking member 28. In this way, the second locking plane portion 30a of the locking member 28 and the second transmission plane portion 30b of the rotation transmission member 29 can be brought into contact with each other, so that the rotation in the plane direction can be restricted.

[0107] In addition, the switch device 4 of the wristwatch is provided with a disengagement prevention portion 31 that prevents the lock member 28 of the lock mechanism 27 from disengaging from the rotation transmission member 29 toward the wristwatch case 1. Therefore, when the locking of the operating member 11 with respect to the cylindrical member 10 is released, the lock member 28 can be moved toward the outside of the wristwatch case 1 together with the rotation transmission member 29 by the disengagement prevention portion 31, thereby enabling a good switch operation.

[0108] That is, in the switch device 4 of the watch, when the locking part 28 of the locking mechanism 27 is locked to the large diameter cylindrical part 13 of the cylindrical part 10 by rotating the operating head 17, the locking part 28 can be moved toward the side of the watch case 1 together with the rotation transmission part 29 through the anti-slip part 31, thereby making it possible to reliably and well lock the locking part 28 relative to the cylindrical part 10.

[0109] In addition, in the switch device 4 of the wristwatch, a buffer component 32 is provided between the rotation transmission component 29 and the locking component 28 of the locking mechanism 27 and the inner end surface of the operating head 17 of the operating component 11 axially opposite to them, so that when the operating head 17 is subjected to an impact from the outside, the impact can be buffered by the buffer component 32.

[0110] That is, the buffer component 32 is compressed according to the impact when absorbing the impact, so that the rotation transfer component 29 of the locking mechanism 27 can slide relative to the locking component 28 according to the compression of the buffer component 32, thereby preventing the external threaded portion 13a of the large diameter cylindrical portion 13 of the tubular component 10 and the internal threaded portion 28a of the locking component 28 from being impacted, thereby preventing the external threaded portion 13a and the internal threaded portion 28a from being damaged due to the impact.

[0111] Furthermore, in the switch device 4 of the wristwatch, the locking member 28 has an internal thread portion 28a that is screwed with an external thread portion 13a provided on the outer periphery of the large diameter cylindrical portion 13 of the cylindrical member 10. Therefore, if the operation head portion 17 of the operation member 11 is rotated to rotate the locking member 28, the internal thread portion 28a can be screwed with the external thread portion 13a of the large diameter cylindrical portion 13 along with the rotation of the locking member 28, thereby enabling the operation head portion 17 to be reliably locked to the cylindrical member 10.

[0112] In addition, in the above-mentioned embodiment, the locking mechanism 27 is described as a threaded locking structure that locks the operating head 17 to the large diameter cylinder 13 by screwing the external thread portion 13a and the internal thread portion 28a, but the present invention is not limited to this. It can also be a simple locking mechanism in which a locking protrusion is provided on the locking component 28 and a locking groove portion for locking the locking protrusion is provided on the large diameter cylinder 13.

[0113] That is, the simplified locking mechanism can be constructed by pressing the operating head 17 toward the side of the watch case 1, inserting the engaging protrusion of the locking part 28 into the engaging groove from the opening of the engaging groove of the large diameter cylinder 13, and in this state, rotating the operating head 17 by a specified angle (for example, 90°) to rotate the engaging protrusion of the locking part 28 in the engaging groove of the large diameter cylinder 13 by a specified angle and leave the opening, thereby engaging the engaging protrusion of the locking part 28 in the engaging groove of the large diameter cylinder 13.

[0114] In addition, in the above-mentioned embodiment, the case in which the first idling prevention portion 23 includes a first operating plane portion 23a provided on the outer peripheral surface of the outer tube portion 22 of the shaft operating portion 19 of the operating shaft portion 16 and a first cover plane portion 23b provided on the inner peripheral surface of the small diameter cover portion 24a corresponding to the cover portion 24 is described, but the present invention is not limited to this. The outer peripheral surface of the outer tube portion 22 and the inner peripheral surface of the corresponding small diameter cover portion 24a may also be formed into a polygonal shape such as a quadrilateral or pentagon or a non-circular shape such as an ellipse.

[0115] In addition, in the above-mentioned embodiment, the second idling prevention portion 30 is described as having a second locking plane portion 30a arranged on the outer peripheral surface of the locking member 28 and a second transmission plane portion 30b arranged on the inner peripheral surface of the corresponding rotation transmission member 29, but the present invention is not limited to this. The outer peripheral surface of the locking member 28 and the inner peripheral surface of the corresponding rotation transmission member 29 may also be formed into a polygonal shape such as a quadrilateral or pentagon or a non-circular shape such as an ellipse.

[0116] In the above embodiment, the switch device 4 is described as a structure in which the winding core (not shown) in the watch module 7 is led out in one stage, but the present invention is not limited to this, and for example, a structure in which the winding core (not shown) in two or more stages may be led out.

[0117] In the above-mentioned embodiment, the case where the switch device 4 is applied to the 3 o'clock side is described, but the present invention is not limited to this, and can also be applied to the push button switch 3 at the 2 o'clock side, the 4 o'clock side, the 8 o'clock side, and the 10 o'clock side.

[0118] In the above-mentioned embodiments, the case of application to a wristwatch is described, but the scope of the present invention is not limited to the above-mentioned embodiments. The specific configuration, structure, and positional relationship shown in the above-mentioned embodiments can be appropriately changed within the scope of the main purpose of the present invention. The present invention does not necessarily have to be a wristwatch, for example, it can be applied to various watches such as travel watches, alarm clocks, table clocks, and wall clocks. In addition, the present invention does not necessarily have to be a wristwatch, for example, it can also be applied to electronic devices such as portable information terminals.

Claims

1. A switch device, characterized in that: have: A housing having a through hole; a cylindrical member, at least a portion of which is inserted into the through hole of the housing; an operating member arranged from the inside of the tubular member to the outside of the tubular member; as well as a locking mechanism that locks the operating member to the cylindrical member, The locking mechanism includes: a locking member that is locked to the tubular member by the rotation operation of the operating member; and a rotation transmission member which is a member different from the locking member and causes the locking member to rotate in accordance with the rotational operation of the operating member.

2. The switch device according to claim 1, characterized in that: The cylindrical member includes: a small-diameter cylindrical portion inserted into the through hole of the housing; and a large-diameter cylindrical portion protruding to the outside of the housing. The locking member is arranged on the inner peripheral surface side of the rotation transmission member, and is locked to the large-diameter cylindrical portion of the cylindrical member.

3. The switch device according to claim 2, characterized in that: The operating member includes an operating shaft portion disposed in the tubular member, and an operating head portion slidably mounted on the outside of the operating shaft portion in the axial direction and covering the large-diameter cylindrical portion of the tubular member.

4. The switch device according to claim 3, characterized in that: The rotation transmission member is fixed by press-fitting into the operating head portion of the operating member.

5. The switch device according to claim 1, characterized in that: The lock mechanism includes an idle rotation prevention portion that rotates the lock member and the rotation transmission member integrally in a state in which the lock member is slidable relative to the rotation transmission member.

6. The switch device according to claim 1, characterized in that: The lock mechanism includes a disengagement prevention portion that prevents the lock member from disengaging from the rotation transmission member toward the housing side.

7. The switch device according to claim 3, characterized in that: A buffer member is provided between the rotation transmission member and the locking member of the locking mechanism and the operating head of the operating member, and the rotation transmission member and the locking member are opposed to the operating head in the axial direction.

8. The switch device according to claim 2, characterized in that: An external thread portion is formed on an outer periphery of the large-diameter cylindrical portion of the cylindrical member.

9. The switch device according to claim 8, characterized in that: The locking member is formed with an internal thread portion that is threadably engaged with the external thread portion of the tubular member.

10. A watch, characterized in that: have: The switch device as claimed in claim 1.

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