Switching devices and clocks

Abstract

The present invention provides a switch device that can be miniaturized, and a clock equipped with the same. [Solution] The watch case 1 has a through hole 8, a cylindrical member 10 has a small diameter cylindrical portion 12 inserted into the through hole 8 of the watch case 1 and a large diameter cylindrical portion 13 protruding to the outside of the watch case 1, and an operating member 11 disposed inside the cylindrical member 10 and protruding to the outside of the cylindrical member 10. A waterproof groove 14 is provided on the inner surface of the large diameter cylindrical portion 13 of the cylindrical member 10 that corresponds to the outer surface of the watch case 1, and a waterproof packing 15, which is a waterproof member, is provided inside the waterproof groove 14. Therefore, it is not necessary to increase the thickness of the watch case 1 in the axial direction of the cylindrical member 10 to ensure strength, so the watch case 1 does not become larger, and the overall size of the watch can be reduced.

Description

【Technical Field】 【0001】 This invention relates to a switch device used in electronic devices such as wristwatches, and a timepiece equipped with the same. 【Background Art】 【0002】 For example, in the switch device of a wristwatch, as described in Patent Document 1, there is known a structure in which a fixed pipe is attached inside a through-hole of a wristwatch case, and an operating member is provided on the fixed pipe so as to be rotatable and slidable. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2004-271361 【0004】 The fixed pipe of this type of switch device includes a small-diameter cylindrical portion inserted into a through-hole of a wristwatch case, and a large-diameter cylindrical portion disposed outside the wristwatch case. A retaining member is attached to the inner end portion of the small-diameter cylindrical portion protruding inside the wristwatch case, and the large-diameter cylindrical portion is configured to press against the outer surface of the wristwatch case. 【0005】 In this case, a waterproof groove is provided annularly along the edge of the through-hole on the outer surface of the wristwatch case, a waterproof packing is disposed in this waterproof groove, and this waterproof packing is pressed by the large-diameter cylindrical portion of the fixed pipe to achieve waterproofing between the wristwatch case and the fixed pipe. 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0006】 However, in such watch switch devices, a waterproof groove is provided on the outer surface of the watch case to house a waterproof gasket. Therefore, the thickness of the watch case in the axial direction of the fixing pipe must be increased to ensure strength. As a result, such watches have the problem of having a larger watch case and thus an overall larger watch size. 【0007】 The problem that this invention aims to solve is to provide a switch device that can be miniaturized, and a clock equipped with the same. [Means for solving the problem] 【0008】 This invention relates to a switch device comprising: a case having a through hole; a cylindrical member having a small-diameter cylindrical portion inserted into the through hole of the case and a large-diameter cylindrical portion protruding to the outside of the case; and an operating member disposed inside the cylindrical member and protruding to the outside of the cylindrical member, wherein a waterproof groove is provided on the inner surface of the large-diameter cylindrical portion of the cylindrical member corresponding to the outer surface of the case, and a waterproof member is provided inside the waterproof groove; the operating member comprises an operating shaft portion slidably and rotatably disposed inside the cylindrical member and protruding to the outside of the cylindrical member, and an operating head portion attached to cover the outer end of the operating shaft portion protruding from the cylindrical member, and a locking mechanism for locking the operating head portion to the large-diameter cylindrical portion of the cylindrical member protruding to the outside of the case. [Effects of the Invention] 【0009】 This invention makes it possible to miniaturize the product. [Brief explanation of the drawing] 【0010】 [Figure 1] This is an enlarged front view showing one embodiment in which the present invention is applied to a wristwatch. [Figure 2] Figure 1 is an enlarged cross-sectional view of the main part of the wristwatch shown, taken in the direction of arrow AA. [Figure 3]Figure 2 is an enlarged cross-sectional view of the main part of the switch device shown, with the operating member unlocked. [Figure 4] Figure 3 is an enlarged cross-sectional view of the main part of the switch device shown, with the operating member extended one step. [Figure 5] Figure 2 shows the waterproof packing in the switch device, where (a) is an enlarged cross-sectional view of the waterproof packing in its free state, and (b) is an enlarged cross-sectional view of the main part showing the waterproof packing in its free state placed in a waterproof groove provided in the large diameter cylindrical portion of a cylindrical member. [Figure 6] Figure 2 is an enlarged perspective view showing the operating shaft portion of the operating member. [Figure 7] Figure 2 is an enlarged perspective view showing the cover portion of the operating head of the operating member. [Figure 8] Figure 2 is an enlarged perspective view showing the locking portion of the operating head of the operating member shown. [Modes for carrying out the invention] 【0011】 An embodiment of this invention applied to a wristwatch will be described below with reference to Figures 1 to 8. As shown in Figure 1, this wristwatch is equipped with a watch case 1. This watch case 1 is made of a highly rigid metal such as stainless steel. The watch case 1 is provided with band attachment sections 2 on the 12 o'clock and 6 o'clock sides, to which a watch band (not shown) is attached. 【0012】 As shown in Figure 1, push-button switches 3 are provided on the 2 o'clock and 4 o'clock sides of the watch case 1. A switch device 4 is also provided on the 3 o'clock side of the watch case 1. As shown in Figures 2 to 4, a watch glass 5 is provided in the upper opening of the watch case 1 via a glass gasket 5a. A case back 6 is attached to the bottom of the watch case 1 via a waterproof ring 6a. 【0013】 Furthermore, as shown in Figures 2 to 4, a watch module 7 is provided inside the watch case 1. Although not shown, this watch module 7 includes various components necessary for watch functions, such as a watch movement that moves the hands to indicate and display the time, a display unit that electro-optically displays information such as the time, date, and day of the week, and a circuit unit for driving and controlling these components. 【0014】 Incidentally, the switch device 4 located on the 3 o'clock side of the watch case 1 is a switch for setting and selecting functions such as time correction and mode switching, as shown in Figures 1 to 4. This switch device 4 comprises a cylindrical member 10 that is attached to a through hole 8 provided in the watch case 1, and an operating member 11 that is slidably and rotatably attached to this cylindrical member 10. 【0015】 As shown in Figures 2 to 4, the cylindrical member 10, like the watch case 1, is formed in a substantially pipe shape from a highly rigid metal such as stainless steel. This cylindrical member 10 comprises a small-diameter cylindrical portion 12 that is inserted into the through-hole 8 of the watch case 1, and a large-diameter cylindrical portion 13 that protrudes from the outside of the watch case 1. The outer diameter of the small-diameter cylindrical portion 12 is formed to be approximately the same as the inner diameter of the through-hole 8 of the watch case 1. Furthermore, the inner diameter of this small-diameter cylindrical portion 12 is formed to be slightly smaller than the inner diameter of the through-hole 8. As a result, the small-diameter cylindrical portion 12 is formed in a thin-walled pipe shape. 【0016】 As shown in Figures 2 to 4, the small-diameter cylindrical portion 12 is formed so that its axial length is slightly longer than the axial length of the through-hole 8. This configuration ensures that when the large-diameter cylindrical portion 13 is positioned in contact with the outer surface of the watch case 1, the inner end of the small-diameter cylindrical portion 12 protrudes into the interior of the watch case 1. In this case, the cylindrical member 10 is configured such that the outer circumference of the inner end of the small-diameter cylindrical portion 12 protruding into the interior of the watch case 1 and the edge of the inner end of the through-hole 8 of the watch case 1 are fixed together around the entire circumference of the through-hole 8 of the watch case 1 by welding, such as laser welding. 【0017】 As shown in FIGS. 2 to 4, the large-diameter cylindrical portion 13 is formed such that its outer diameter is larger than the inner diameter of the through-hole 8 of the watch case 1 and smaller than the vertical length (height) of the watch case 1. That is, the outer diameter of this large-diameter cylindrical portion 13 is about three times the inner diameter of the through-hole 8 and about half the vertical length of the watch case 1. Further, the inner diameter of this large-diameter cylindrical portion 13 is formed to be the same as the inner diameter of the small-diameter cylindrical portion 12. 【0018】 As a result, as shown in FIGS. 2 to 4, the large-diameter cylindrical portion 13 is formed in a pipe shape in which the length (thickness) between its inner diameter and outer diameter is longer (thicker) than the length between the inner diameter and outer diameter of the small-diameter cylindrical portion 12. Further, the axial length of this large-diameter cylindrical portion 13 is formed to be approximately the same as the axial length of the through-hole 8 of the watch case 1. 【0019】 In this case, as shown in FIGS. 2 to 4, the large-diameter cylindrical portion 13 is formed such that the axial lengths of the inner side portion on the watch case 1 side and the outer side portion on the opposite side are each approximately the same. The outer diameter of the outer side portion of this large-diameter cylindrical portion 13 is formed to be one size smaller than the outer diameter of the inner side portion on the watch case 1 side. A male screw 13a is provided on the outer circumference of the one-size-smaller outer side portion of this large-diameter cylindrical portion 13. 【0020】 By the way, as shown in FIGS. 2 to 4, a waterproof groove 14 that is recessed (deepens) in the axial direction of the large-diameter cylindrical portion 13 is provided annularly along the outer circumference of the small-diameter cylindrical portion 12 on the inner surface of the large-diameter cylindrical portion 13 of the cylindrical member 10 corresponding to the outer surface of the watch case 1 side. The cross-sectional shape of this waterproof groove 14 is formed in a square shape. A waterproof packing 15, which is a waterproof member, is provided in this waterproof groove 14. This waterproof packing 15 is formed in a ring shape from a material having elasticity and hygroscopicity, such as synthetic rubber or elastomer like nitrile butadiene rubber (NBR). 【0021】 As shown in Figures 5(a) and 5(b), the waterproof packing 15 has a cross-sectional shape that is approximately triangular when in a free state. That is, the waterproof packing 15 comprises a main body portion 15a that is positioned within the waterproof groove 14 when in a free state, a projection portion 15b that protrudes from within the waterproof groove 14 toward the watch case 1 when in a free state, and an inclined portion 15c that is inclined toward the watch case 1 when in a free state. 【0022】 In other words, as shown in Figures 5(a) and 5(b), the projection 15b of the waterproof packing 15 protrudes from inside the waterproof groove 14 toward the watch case 1 when in a free state, and when the cylindrical member 10 is attached to the through hole 8 of the watch case 1 in this state, as shown in Figures 2 to 4, it is configured to be elastically compressed by the outer surface of the watch case 1 and pushed into the waterproof groove 14. 【0023】 Furthermore, as shown in Figures 5(a) and 5(b), the inclined portion 15c of the waterproof packing 15 is inclined toward the watch case 1 from the center of the waterproof packing 15 toward the outer circumference of the waterproof packing 15 when it is in a free state. In this state, when the cylindrical member 10 is attached to the through hole 8 of the watch case 1, it is configured to be elastically compressed by the outer surface of the watch case 1 and pushed into the waterproof groove 14, as shown in Figures 2 to 4. 【0024】 In this case, as shown in Figures 2 to 4, a chamfered portion 8a is provided on the outer edge of the through-hole 8 of the watch case 1, corresponding to the inclined portion 15c of the waterproof packing 15. That is, the chamfered portion 8a and the inclined portion 15c are formed so that their respective inclination directions intersect at approximately a right angle. This configuration prevents the waterproof packing 15 from biting into the outer edge of the through-hole 8 when the waterproof packing 15 is elastically compressed by the outer surface of the watch case 1 and pushed into the waterproof groove 14. 【0025】 On the other hand, the operating member 11 attached to the cylindrical member 10, as shown in Figures 2 to 4, comprises an operating shaft portion 16 that is slidably and rotatably arranged inside the cylindrical member 10 and protrudes to the outside of the cylindrical member 10, and an operating head portion 17 that covers and is attached to the outer end of the operating shaft portion 16 protruding from the cylindrical member 10. The operating shaft portion 16 is made of a metal such as a titanium alloy or a hard synthetic resin. 【0026】 As shown in Figures 2 to 4 and 6, the operating shaft portion 16 comprises a shaft portion 18 inserted into the cylindrical member 10 and an operating portion 19 provided at the outer end of the shaft portion 18. The shaft portion 18 is formed so that its outer diameter is approximately the same as the inner diameter of the cylindrical member 10. Furthermore, the shaft portion 18 is formed so that its axial length is approximately the same as the axial length of the cylindrical member 10. 【0027】 As a result, as shown in Figures 2 to 4 and 6, the shaft portion 18 is configured such that when its outer end is located at the outer end of the cylindrical member 10, its inner end is located at the inner end of the cylindrical member 10, and in this state, it is rotatable and slidable within the cylindrical member 10. In addition, a plurality of waterproof rings 20 are provided on the outer circumference of the shaft portion 18, each in an annular shape along the outer circumference of the shaft portion 18. Thus, the plurality of waterproof rings 20 are configured to provide waterproofing between the outer surface of the shaft portion 18 and the inner surface of the cylindrical member 10. 【0028】 On the other hand, as shown in Figures 2 to 4 and 6, the operating part 19 is integrally provided with the outer end of the shaft portion 18 located at the outer end of the cylindrical member 10, and is configured to slide and rotate the shaft portion 18. That is, this operating part 19 is formed in a substantially cylindrical shape with a bottom portion 19a provided at the outer end of the shaft portion 18. A circular hollow recess 19b is provided in this operating part 19 along the axial direction of the operating member 11. The inner diameter of this hollow recess 19b is formed to be slightly larger than the outer diameter of the small diameter cylindrical portion 12 of the cylindrical member 10. 【0029】 Furthermore, as shown in Figures 2 to 4, the operating section 19 comprises an inner cylindrical section 21 with a small outer diameter and an outer cylindrical section 22 with a large outer diameter. The inner cylindrical section 21 with a small outer diameter has an outer diameter slightly smaller than the outer diameter of the male screw 13a provided on the outer circumference of the large cylindrical section 13 of the cylindrical member 10, that is, slightly smaller than the inner diameter of the female screw 24a of the locking section 24 of the operating head 17, which will be described later. The outer cylindrical section 22 with a large outer diameter is smaller than the outer diameter of the large cylindrical section 13 and larger than the outer diameter of the male screw 13a. 【0030】 In this case, as shown in Figures 2 to 4, the small-diameter inner cylindrical portion 21 is configured such that its inner end, i.e., the bottom 19a of the operating portion 19, can abut against the outer end surface of the large-diameter cylindrical portion 13 of the cylindrical member 10, i.e., the outer end surface of the male screw 13a, so as to be able to move toward and away from it. The large-diameter outer cylindrical portion 22 is configured such that its inner end can abut against the outer end surface of the locking portion 24 of the operating head 17, which will be described later. 【0031】 Furthermore, as shown in Figures 2 to 4, the operating shaft portion 16 is connected to a winding core (not shown) by inserting it into a non-circular connecting hole 18a provided at the inner end of the shaft portion 18. In this state, the operating unit 19 is configured to cause the winding core to slide and rotate via the shaft portion 18. 【0032】 In this case, although not shown in the diagram, the winding stem is configured to rotate freely relative to the clock module 7 when it is pushed into the clock module 7. Furthermore, when the winding stem is pulled out one step, it is connected to the clock module 7, and in this state, it rotates in response to the rotation operation of the operating unit 19, allowing for the setting and selection of functions such as time correction and mode switching. 【0033】 As shown in Figures 2 and 3, when the shaft portion 18 is pushed inward into the watch case 1 and the winding stem (not shown) is pushed into the watch module 7, the connection of the winding stem to the watch module 7 is released. In this state, even if the operating portion 19 rotates and the winding stem rotates, that rotation is not transmitted to the watch module 7, and functions such as time correction and mode switching cannot be set or selected. 【0034】 Furthermore, as shown in Figure 4, the operating shaft 16 is configured such that when the shaft 18 is pulled out to the outside of the watch case 1 and the winding stem (not shown) slides out from inside the watch module 7, the winding stem is connected to the watch module 7, and in this state the operating unit 19 rotates, causing the winding stem to rotate. This rotation is then transmitted to the watch module 7, allowing for the setting and selection of functions such as time correction and mode switching. 【0035】 Incidentally, as shown in Figures 2 to 4, the operating head 17 includes a locking part 24 that locks onto the large-diameter cylindrical portion 13 of the cylindrical member 10, a cover portion 25 to which the locking part 24 is attached and which covers the operating shaft portion 16, and a spring member 26 that biases the cover portion 25 in a direction that pushes it toward the outside of the watch case 1. The locking part 24 is formed in a ring shape from a metal such as a titanium alloy. 【0036】 As shown in Figures 2 to 4 and Figure 8, the locking portion 24 is formed with an outer diameter slightly smaller than the outer diameter of the large-diameter cylindrical portion 13 of the cylindrical member 10. The inner circumference of the locking portion 24 is provided with a female thread 24a into which the male thread 13a of the large-diameter cylindrical portion 13 is screwed. Thus, the operating head 17 is configured to be locked by the female thread 24a of the locking portion 24 being screwed into the male thread 13a of the large-diameter cylindrical portion 13 of the cylindrical member 10. For this reason, the screw locking mechanism 27 of the switch device 4 is formed by the female thread 24a of the locking portion 24 and the male thread 13a of the large-diameter cylindrical portion 13. 【0037】 As shown in Figures 2 to 4 and Figure 7, the cover portion 25 is formed in a cylindrical shape with its outer end closed by a metal such as a titanium alloy. This cover portion 25 is formed in a polygonal shape, such as an octagon, with an outer diameter slightly larger than the outer diameter of the large diameter cylindrical portion 13 of the cylindrical member 10. Furthermore, this cover portion 25 is formed in a nearly circular shape with an inner diameter the same size as the outer diameter of the large diameter outer cylindrical portion 22 of the operating portion 19 of the operating shaft portion 16. A locking portion 24 is attached to the inner surface of this cover portion 25 on the side facing the cylindrical member 10. 【0038】 In other words, as shown in Figures 2 to 4 and 7, the inner surface 25a of the cover portion 25 on the cylindrical member 10 side is formed as a recess, with an inner diameter the same as the outer diameter of the lock portion 24, that is, slightly larger than the inner diameter of the cover portion 25. As a result, the lock portion 24 is positioned on the recessed inner surface 25a of the cover portion 25, and the edge of the cover portion 25 is fixed by a crimped portion 25b formed by a crimping process. 【0039】 In this case, as shown in Figures 7 and 8, a first rotation-stopping portion 28 is provided on the inner surface 25a of the cover portion 25 and the outer surface of the lock portion 24. This first rotation-stopping portion 28 comprises a first locking flat portion 28a provided on the outer circumferential surface of the lock portion 24 and a first cover flat portion 28b provided on the inner surface 25a of the cover portion 25 to which the lock portion 24 is attached. 【0040】 As shown in Figures 7 and 8, the first rotation stopper portion 28 is configured such that when the locking portion 24 is installed inside the cover portion 25, the first locking plane portion 28a and the first cover plane portion 28b correspond to and come into contact with each other. As a result, the first rotation stopper portion 28 is configured so that the locking portion 24 does not rotate freely inside the cover portion 25, and the cover portion 25 and the locking portion 24 always rotate as a single unit. 【0041】 On the other hand, as shown in Figures 6 and 7, a second rotation stopper portion 29 is provided on the outer surface of the large-diameter outer cylindrical portion 22 of the operating section 19 and on the inner surface 25a of the corresponding cover portion 25. This second rotation stopper portion 29 comprises a second operating plane portion 29a provided on the outer circumferential surface of the outer cylindrical portion 22 of the operating section 19, and a second cover plane portion 29b provided on the inner surface of the cover portion 25 into which the operating section 19 is inserted. 【0042】 As shown in Figures 2, 6, and 7, the second rotation stopper 29 is configured such that when the operating unit 19 is positioned inside the cover unit 25, the second operating plane 29a and the second cover plane 29b are in corresponding contact with each other. As a result, the second rotation stopper 29 is configured so that the operating unit 19 does not rotate freely inside the cover unit 25, and the cover unit 25 and the operating unit 19 always rotate as a single unit. 【0043】 Furthermore, as shown in Figures 2 to 4 and Figure 7, a spring guide portion 30 is provided inside the cover portion 25. This spring guide portion 30 is for guiding the spring member 26, and is formed in the shape of a round rod, and is provided along the axial direction of the cover portion 25 at the center of the inner surface at the outer end of the cover portion 25. In other words, the outer diameter of this spring guide portion 30 is formed to be approximately the same as the outer diameter of the shaft portion 18. 【0044】 Furthermore, as shown in Figures 2 to 4 and Figure 7, the spring guide portion 30 is formed with an axial length slightly shorter than the axial length of the hollow recess 19b of the operating portion 19. This configuration ensures that the spring guide portion 30 is inserted into the hollow recess 19b of the operating portion 19 when the operating portion 19 is placed inside the cover portion 25. 【0045】 As shown in Figures 2 to 4, the spring member 26 is a coil spring and is configured to be positioned on the outer circumference of the spring guide portion 30 and within the hollow recess 19b of the operating portion 19. Specifically, one end of the spring member 26 abuts against the bottom 19a of the hollow recess 19b of the operating portion 19, and the other end abuts against the inner surface of the outer end of the cover portion 25, and in this state is configured to bias the cover portion 25 in a direction that pushes it outwards from the watch case 1. 【0046】 As a result, as shown in Figure 2, when the operating head 17 of the switch device 4 is locked to the cylindrical member 10 by the screw lock mechanism 27, the operating head 17 is pressed against the large-diameter cylindrical portion 13 of the cylindrical member 10 against the spring force of the spring member 26, and the cover portion 25 of the operating head 17 is rotated. Along with the rotation of the cover portion 25, the lock portion 24 rotates, and the female thread 24a of the lock portion 24 is screwed into the male thread 13a of the large-diameter cylindrical portion 13 of the cylindrical member 10. 【0047】 In other words, as shown in Figure 2, the switch device 4 is configured such that when the female thread 24a of the locking part 24 is screwed onto the male thread 13a of the large-diameter cylindrical part 13 of the cylindrical member 10, the first locking flat surface 28a and the first cover flat surface 28b of the first rotation stopper part 28 are in corresponding contact with each other, causing the locking part 24 provided inside the cover part 25 to rotate integrally with the cover part 25, thereby locking the operating head 17 onto the large-diameter cylindrical part 13 of the cylindrical member 10. 【0048】 Furthermore, as shown in Figure 3, when the operating head 17 is released from the lock on the large-diameter cylindrical portion 13 of the cylindrical member 10, the cover portion 25 of the operating head 17 is rotated to release the screw-in engagement between the female thread 24a of the locking portion 24 and the male thread 13a of the large-diameter cylindrical portion 13 of the cylindrical member 10. This is configured so that the spring force of the spring member 26 pushes the locking portion 24 and the cover portion 25 of the operating head 17 outwards from the watch case 1. 【0049】 In other words, as shown in Figure 3, the switch device 4 is configured such that when the lock of the operating head 17 on the large-diameter cylindrical portion 13 of the cylindrical member 10 is released, and the locking portion 24 and cover portion 25 of the operating head 17 are pushed outwards from the outside of the watch case 1 by the spring force of the spring member 26, the locking portion 24 of the operating head 17 slides together with the cover portion 25 and comes into contact with the inner end surface of the large-diameter outer cylindrical portion 22 of the operating portion 19 of the operating shaft portion 16. 【0050】 In this case, as shown in Figure 3, the switch device 4 is configured such that when the lock portion 24 and cover portion 25 of the operating head 17 are pushed outwards from the outside of the watch case 1 by the spring force of the spring member 26, the operating shaft portion 16 does not slide in the axial direction, and the bottom portion 19a of the operating portion 19 of the operating shaft portion 16 is maintained in contact with the outer end of the large diameter cylindrical portion 13 of the cylindrical member 10 by the spring force of the spring member 26. 【0051】 Furthermore, as shown in Figure 4, the switch device 4 is configured such that when the operating head 17 is pulled out one step toward the outside of the watch case 1 while the locking portion 24 and cover portion 25 of the operating head 17 are pushed toward the outside of the watch case 1 by the spring force of the spring member 26, the locking portion 24 of the operating head 17, which is in contact with the inner end surface of the large-diameter outer cylindrical portion 22 of the operating portion 19 of the operating shaft portion 16, pulls the operating shaft portion 16 toward the outside of the watch case 1. 【0052】 In this case, as shown in Figure 4, the switch device 4 is configured such that when the locking portion 24 of the operating head 17 pulls out the operating shaft portion 16 toward the outside of the watch case 1 together with the cover portion 25, the winding core (not shown) connected to the connecting hole 18a of the shaft portion 18 slides in a direction that pulls it out from inside the watch module 7, and the winding core is connected to the watch module 7. 【0053】 Furthermore, as shown in Figure 4, the switch device 4 is configured such that when the winding core (not shown) slides out from inside the clock module 7 and the winding core is connected to the clock module 7, the operating head 17 rotates, and this rotation is transmitted to the winding core via the operating shaft 16. This rotation of the winding core is then transmitted to the clock module 7, allowing for the setting and selection of functions such as time correction and mode switching. 【0054】 Next, I will explain how to assemble such a watch. In this case, first, the watch glass 5 is attached to the upper opening of the watch case 1 together with the glass gasket 5a. With this in place, the push-button switches 3 are attached to the 2 o'clock and 4 o'clock sides of the watch case 1, and the cylindrical member 10 of the switch device 4 is attached to the through hole 8 on the 3 o'clock side of the watch case 1. 【0055】 In this case, the waterproof packing 15 is first placed in the waterproof groove 14 provided on the inner surface of the large-diameter cylindrical portion 13 of the cylindrical member 10. At this time, the main body portion 15a of the waterproof packing 15 is placed in the waterproof groove 14. Then, the projection 15b of the waterproof packing 15 protrudes outward from inside the waterproof groove 14, and the inclined portion 15c of the waterproof packing 15 faces toward the watch case 1, and is positioned corresponding to the small-diameter side of the waterproof groove 14, that is, the chamfered portion 8a of the through hole 8. 【0056】 In this state, the small-diameter cylindrical portion 12 of the cylindrical member 10 is inserted from the outside into the through-hole 8 of the watch case 1, and the inner surface of the large-diameter cylindrical portion 13 of the cylindrical member 10 is pressed against the outer surface of the watch case 1. As a result, the projection 15b of the waterproof packing 15 that protrudes from inside the waterproof groove 14 is elastically compressed by the outer surface of the watch case 1 and pushed into the waterproof groove 14. Similarly, the inclined portion 15c of the waterproof packing 15 is elastically compressed by the outer surface of the watch case 1 and pushed into the waterproof groove 14. 【0057】 In this case, the inclination directions of both the chamfered portion 8a provided on the outer edge of the through-hole 8 of the watch case 1 and the inclined portion 15c of the waterproof packing 15 intersect at approximately a right angle. As a result, when the waterproof packing 15 is elastically compressed by the outer surface of the watch case 1 and pushed into the waterproof groove 14, the waterproof packing 15 does not bite into the outer edge of the through-hole 8, and the waterproof packing 15 is pushed well into the waterproof groove 14. This ensures reliable waterproofing between the outer surface of the cylindrical member 10 and the inner surface of the through-hole 8. 【0058】 In this case, the inner end of the small-diameter cylindrical portion 12 of the cylindrical member 10 protrudes into the inside of the watch case 1. In this state, the outer circumference of the inner end of the small-diameter cylindrical portion 12 that protrudes into the inside of the watch case 1 and the edge of the inner end of the through hole 8 of the watch case 1 are fixed together around the entire circumference of the through hole 8 of the watch case 1 by welding, such as laser welding. As a result, the cylindrical member 10 is firmly attached to the through hole 8 of the watch case 1 without coming out of the watch case 1. 【0059】 Next, the watch module 7 is assembled into the watch case 1, and the winding core (not shown) is attached to the watch module 7. At this time, the winding core is inserted into the cylindrical member 10 from the outside of the watch case 1, and this inserted winding core is then inserted into the watch module 7. This mounts the winding core in a state where it can slide and rotate within the watch module 7. 【0060】 In this state, the locking portion 24 of the operating head 17 is positioned on the outer end of the cylindrical member 10. At this time, the locking portion 24 is not yet attached to the cover portion 25. In this state, the shaft portion 18 of the operating shaft portion 16 is inserted from the outside of the watch case 1 into the female thread 24a of the locking portion 24 and the inside of the cylindrical member 10, and the outer end of the winding core is fitted into the connecting hole 18a provided at the inner end of the shaft portion 18 to connect them. In this state, the winding core slides in accordance with the sliding motion of the operating shaft portion 16, and the winding core rotates in accordance with the rotational motion of the operating shaft portion 16. 【0061】 Then, the cover portion 25 of the operating head 17 is placed over the operating portion 19 of the operating shaft portion 16 that protrudes outward from the cylindrical member 10. At this time, the spring member 26 is positioned in advance on the outer circumference of the spring guide portion 30 provided inside the cover portion 25. In this state, the operating portion 19 of the operating shaft portion 16 is inserted into the cover portion 25 of the operating head 17, and the second operating plane portion 29a of the second rotation stopper portion 29 and the second cover plane portion 29b are brought into contact with each other. 【0062】 As a result, the operating part 19 rotates integrally with the cover part 25 and is positioned to slide axially within the cover part 25. At this time, the spring member 26 and the spring guide part 30 are inserted into the hollow recess 19b of the operating part 19. In this state, the locking part 24 is attached to the cover part 25. At this time, the outer surface of the locking part 24 is positioned on the recessed inner surface 25a of the cover part 25, and the first locking plane 28a of the first rotation stopper part 28 and the first cover plane 28b are brought into contact with each other. 【0063】 In this state, a crimped portion 25b is formed on the inner edge of the cover portion 25 by crimping, and the lock portion 24 is fixed to the recessed inner surface 25a of the cover portion 25 by this crimped portion 25b. This completes the assembly of the switch device 4. After this, the back cover 6 is attached to the bottom of the watch case 1 together with the waterproof ring 6a. This completes the assembly of the watch. 【0064】 Next, we will explain the operation of the switch device 4 in this type of wristwatch. When this wristwatch is worn on the wrist, the operating head 17 of the switch device 4 is locked to the large-diameter cylindrical portion 13 of the cylindrical member 10 by the screw lock mechanism 27. At this time, the cover portion 25 is moved toward the large-diameter cylindrical portion 13 against the spring force of the spring member 26, and the lock portion 24 is pressed against the male screw 13a of the large-diameter cylindrical portion 13. 【0065】 In this state, when the cover portion 25 is rotated, the lock portion 24 rotates, and this rotation of the lock portion 24 causes the female thread 24a of the lock portion 24 to screw onto the male thread 13a of the large-diameter cylindrical portion 13 and tighten. At this time, the bottom portion 19a, which is the inner end of the operating portion 19 of the operating shaft portion 16, comes into contact with the outer end of the large-diameter cylindrical portion 13, that is, the outer end of the male thread 13a, and the operating shaft portion 16 is pushed into the cylindrical member 10. As a result, the operating head portion 17 of the switch device 4 is locked into the large-diameter cylindrical portion 13 of the cylindrical member 10. 【0066】 At this time, the winding core (not shown), which is fitted into and connected to the connecting hole 18a provided at the inner end of the shaft portion 18 of the operating shaft portion 16, is pushed into the clock module 7. In this state, since the operating head portion 17 is locked to the large diameter cylindrical portion 13 of the cylindrical member 10, the operating member 11 does not rotate, and therefore the winding core does not rotate within the clock module 7. 【0067】 Furthermore, if the cover portion 25 of the operating head 17 is subjected to an external impact in this state, the impact is transmitted to the large-diameter cylindrical portion 13 of the cylindrical member 10 by the locking portion 24, and the impact transmitted to this large-diameter cylindrical portion 13 is absorbed by the watch case 1. As a result, the impact received by the cover portion 25 is buffered by the spring member 26 and is not transmitted to the operating shaft portion 16. This prevents the winding stem (not shown) from being pushed into the watch module 7 by the impact and damaging the watch module 7. 【0068】 Furthermore, when setting or selecting functions such as time correction or mode switching, the first step is to release the lock of the operating head 17 on the large-diameter cylindrical portion 13 of the cylindrical member 10 by the screw lock mechanism 27. At this time, by rotating the cover portion 25 of the operating head 17 and rotating the lock portion 24, the screw engagement of the female thread 24a of the lock portion 24 with the male thread 13a of the large-diameter cylindrical portion 13 is released. Then, the operating head 17 is pushed out by the spring force of the spring member 26, and the outer end of the lock portion 24 comes into contact with the inner end of the large-diameter outer cylindrical portion 22 of the operating portion 19 of the operating shaft portion 16. 【0069】 In this case, the operating shaft portion 16 does not slide, and therefore the winding core (not shown) connected to the connecting hole 18a of the shaft portion 18 also does not slide. As a result, the winding core remains in a state of free rotation within the clock module 7. In other words, even if the cover portion 25 of the operating head portion 17 rotates and the operating shaft portion 16 rotates, and the winding core rotates along with the rotation of the operating shaft portion 16, the rotation of the winding core is not transmitted to the clock module 7, and therefore functions such as time correction and mode switching are not set or selected. 【0070】 In this state, when the operating head 17 is pulled out toward the outside of the watch case 1, the locking part 24 inside the cover part 25 comes into contact with the large-diameter outer cylindrical part 22 of the operating part 19 of the operating shaft part 16, so the operating part 19 is pulled out together with the spring member 26. Then the shaft part 18 of the operating shaft part 16 slides out one step, and the winding core (not shown) connected to this shaft part 18 is pulled out. 【0071】 In this way, when the winding stem is pulled out, the rotation of the winding stem is transmitted to the clock module 7. In this state, when the cover portion 25 of the operating head 17 is rotated, that rotation is transmitted to the operating shaft portion 16 by the second rotation stop portion 29, causing the shaft portion 18 of the operating shaft portion 16 to rotate. As a result of the rotation of the operating shaft portion 16, the winding stem rotates, and that rotation is transmitted to the clock module 7, allowing for the setting and selection of functions such as time correction and mode switching. 【0072】 Thus, according to this watch switch device 4, it comprises a watch case 1 with a through hole 8, a cylindrical member 10 having a small diameter cylindrical portion 12 inserted into the through hole 8 of the watch case 1 and a large diameter cylindrical portion 13 protruding to the outside of the watch case 1, and an operating member 11 disposed inside the cylindrical member 10 and protruding to the outside of the cylindrical member 10. A waterproof groove 14 is provided on the inner surface of the large diameter cylindrical portion 13 of the cylindrical member 10 corresponding to the outer surface of the watch case 1, and a waterproof packing 15, which is a waterproof member, is provided inside the waterproof groove 14, thereby enabling miniaturization. 【0073】 In other words, in this watch's switch device 4, a waterproof groove 14 for housing a waterproof packing 15 is provided on the inner surface of the large-diameter cylindrical portion 13 of the cylindrical member 10 corresponding to the outer surface of the watch case 1. Therefore, it is not necessary to increase the thickness of the watch case 1 in the axial direction of the cylindrical member 10 to ensure strength, thus the watch case 1 does not become larger, and the overall size of the watch can be reduced. 【0074】 In this case, the switch device 4 of the wristwatch has a waterproof groove 14 which is recessed in the axial direction of the large diameter cylindrical portion 13 and is provided along the outer circumference of the small diameter cylindrical portion 12. This allows the waterproof packing 15, which is placed inside the waterproof groove 14, to be reliably and effectively pressed against the outer surface of the wristwatch case 1, thereby ensuring reliable and effective waterproofing between the outer circumference of the cylindrical member 10 and the inner surface of the through hole 8 of the wristwatch case 1. 【0075】 Furthermore, in the switch device 4 of this wristwatch, the waterproof packing 15 is formed in a ring shape with a substantially triangular cross-section so that when it is freely positioned within the waterproof groove 14, a portion of the waterproof packing 15 protrudes from within the waterproof groove 14. Therefore, when the large diameter cylindrical portion 13 of the cylindrical member 10 is pressed against the outer surface of the wristwatch case 1, the portion of the waterproof packing 15 protruding from within the waterproof groove 14 can be crushed by the outer surface of the wristwatch case 1 and pushed into the waterproof groove 14. This ensures reliable and effective waterproofing between the outer circumference of the cylindrical member 10 and the inner surface of the through hole 8 of the wristwatch case 1. 【0076】 In other words, the switch device 4 of this wristwatch has a projection 15b that protrudes from inside the waterproof groove 14 toward the wristwatch case 1 when in a free state and is elastically compressed by the outer surface of the wristwatch case 1 and pushed into the waterproof groove 14. As a result, when the large diameter cylindrical portion 13 of the cylindrical member 10 is pressed against the outer surface of the wristwatch case 1, the outer surface of the wristwatch case 1 elastically compresses the projection 15b of the waterproof gasket 15 and pushes it into the waterproof groove 14. This ensures reliable and good waterproofing between the outer circumference of the cylindrical member 10 and the inner surface of the through hole 8 of the wristwatch case 1. 【0077】 Furthermore, in the switch device 4 of this wristwatch, the waterproof packing 15 is provided with an inclined portion 15c that, when in a free state, is inclined toward the wristwatch case 1 from the center of the waterproof packing 15 toward the outer circumference of the waterproof packing 15, and is elastically compressed by the outer surface of the wristwatch case 1 and pushed into the waterproof groove 14. As a result, when the large diameter cylindrical portion 13 of the cylindrical member 10 is pressed against the outer surface of the wristwatch case 1, the outer surface of the wristwatch case 1 elastically compresses the inclined portion 15c of the waterproof packing 15 and pushes it into the waterproof groove 14. This prevents the inclined portion 15c of the waterproof packing 15 from biting into the edge of the through hole 8, thus ensuring reliable and good waterproofing between the outer circumference of the cylindrical member 10 and the inner surface of the through hole 8 of the wristwatch case 1. 【0078】 In this case, the switch device 4 of the watch has a chamfered portion 8a provided on the outer edge of the through hole 8 of the watch case 1, corresponding to the inclined portion 15c of the waterproof packing 15. As a result, when the inclined portion 15c of the waterproof packing 15 is elastically compressed by the outer surface of the watch case 1 and pushed into the waterproof groove 14, the chamfered portion 8a provided on the outer edge of the through hole 8 prevents the waterproof packing 15 from biting into the edge of the through hole 8. 【0079】 In other words, in the switch device 4 of this wristwatch, the inclination directions of both the chamfered portion 8a provided on the outer edge of the through hole 8 of the wristwatch case 1 and the inclined portion 15c of the waterproof packing 15 intersect at almost a right angle. As a result, when the waterproof packing 15 is elastically compressed by the outer surface of the wristwatch case 1 and pushed into the waterproof groove 14, the waterproof packing 15 is reliably prevented from biting into the outer edge of the through hole 8, thereby allowing the waterproof packing 15 to be properly pushed into the waterproof groove 14. 【0080】 Furthermore, in the switch device 4 of this wristwatch, the operating member 11 is provided with an operating shaft portion 16 that is slidably and rotatably arranged inside the cylindrical member 10 and protrudes to the outside of the cylindrical member 10, and an operating head portion 17 that covers and is attached to the outer end of the operating shaft portion 16 that protrudes from the cylindrical member 10. As a result, the operating head portion 17 can be operated to reliably operate the operating shaft portion 16 and enable good switch operation. 【0081】 In this case, the switch device 4 of this wristwatch is equipped with a screw lock mechanism 27, which is a locking mechanism that locks the operating head 17 to the large diameter cylindrical portion 13 of the cylindrical member 10 that protrudes to the outside of the wristwatch case 1. Therefore, when the switch device 4 is not being operated, the screw lock mechanism 27 can lock the operating head 17 to the large diameter cylindrical portion 13 of the cylindrical member 10 that protrudes to the outside of the wristwatch case 1. As a result, when the operating head 17 is subjected to an impact, the operating shaft portion 16 does not receive the impact, and the cylindrical member 10 and the wristwatch case 1 can reliably absorb the impact, thereby reliably and effectively preventing damage to the watch module 7. 【0082】 Furthermore, in the switch device 4 of this wristwatch, the operating head 17 is equipped with a locking part 24 that locks onto the large-diameter cylindrical portion 13 of the cylindrical member 10, and a cover part 25 that covers the operating shaft portion 16 and is provided with the locking part 24. As a result, when the cover part 25 covers the operating shaft portion 16, the locking part 24 can lock onto the large-diameter cylindrical portion 13 of the cylindrical member 10. Therefore, when the cover part 25 is subjected to an impact, the operating shaft portion 16 is not subjected to that impact, and the impact can be reliably absorbed by the large-diameter cylindrical portion 13 of the cylindrical member 10, thereby reliably and effectively preventing damage to the watch module 7. 【0083】 Furthermore, in the switch device 4 of this wristwatch, the operating head 17 is equipped with a first rotation stopper 28 for rotating the locking part 24 and the cover part 25 together. When the locking part 24 is installed inside the cover part 25, the first rotation stopper 28 reliably prevents the locking part 24 from spinning freely inside the cover part 25, thereby ensuring that the locking part 24 can be rotated reliably and smoothly by the rotation of the cover part 25. 【0084】 In other words, in the switch device 4 of this wristwatch, the first rotation stopper 28 includes a first locking plane 28a provided on the outer circumference of the locking portion 24 and a first cover plane 28b provided on the inner surface 25a of the cover portion 25 that corresponds to the first locking plane 28a. This allows the first locking plane 28a of the locking portion 24 and the first cover plane 28b of the cover portion 25 to come into contact with each other, thereby allowing the locking portion 24 and the cover portion 25 to rotate together as a single unit. 【0085】 Furthermore, in the switch device 4 of this wristwatch, the operating member 11 is equipped with a second rotation stopper 29 for rotating the operating shaft 16 and the cover 25 integrally. As a result, when the operating shaft 16 is covered by the cover 25, the second rotation stopper 29 reliably prevents the operating shaft 16 from spinning freely within the cover 25, thereby ensuring that the operating shaft 16 can be rotated reliably and smoothly by the rotation of the cover 25. 【0086】 In other words, in the switch device 4 of this wristwatch, the second rotation stopper 29 includes a second operating plane 29a provided on the outer circumference of the operating part 19 of the operating shaft 16, and a second cover plane 29b provided on the inner surface of the cover part 25 to which the second operating plane 29a corresponds. This allows the second operating plane 29a of the operating part 19 and the second cover plane 29b of the cover part 25 to come into contact with each other, thereby allowing the operating part 19 and the cover part 25 to rotate together as a single unit. 【0087】 In the embodiment described above, the first rotation stopper 28 is described as comprising a first locking plane portion 28a provided on the outer circumferential surface of the locking portion 24 and a first cover plane portion 28b provided on the inner surface of the corresponding cover portion 25. However, the invention is not limited to this, and the outer circumferential surface of the locking portion 24 and the inner surface 25a of the corresponding cover portion 25 may be formed in a polygonal shape such as a square or pentagon, or in a non-circular shape such as an ellipse. 【0088】 Furthermore, in the embodiments described above, the second rotation stopper 29 is described as comprising a second operating plane 29a provided on the outer circumferential surface of the operating part 19 of the operating shaft 16 and a second cover plane 29b provided on the inner surface of the corresponding cover part 25. However, the present invention is not limited to this, and the outer circumferential surface of the operating part 19 and the inner surface of the corresponding cover part 25 may be formed in a polygonal shape such as a square or pentagon, or a non-circular shape such as an ellipse. 【0089】 Furthermore, in the above-described embodiment, a screw lock mechanism 27 was used as the locking mechanism for locking the operating head 17 to the large-diameter cylindrical portion 13 of the cylindrical member 10. However, the present invention is not limited to this, and may also be a simpler locking mechanism in which, for example, a locking portion is provided on the large-diameter cylindrical portion 13 of the cylindrical member 10, an engaging portion is provided on the operating head 17, and the engaging portion of the operating head 17 is engaged with the locking portion of the large-diameter cylindrical portion 13 to lock the operating head 17 to the large-diameter cylindrical portion 13 of the cylindrical member 10. 【0090】 Furthermore, although the above-described embodiment mentions a case where the switch device 4 has a structure that pulls out the winding core (not shown) in the clock module 7 by one stage, the present invention is not limited to this, and may have a structure that allows it to be pulled out by two or more stages, for example. 【0091】 Furthermore, although the above-described embodiment described the switch device 4 on the 3 o'clock side, this invention is not limited to this and can also be applied to, for example, the push-button switches 3 on the 2 o'clock and 4 o'clock sides. 【0092】 Furthermore, although the embodiments described above focused on the application of the invention to wristwatches, this invention is not necessarily limited to wristwatches and can be applied to various types of clocks, such as travel watches, alarm clocks, desk clocks, and wall clocks. Moreover, this invention is not necessarily limited to clocks and can be applied to electronic devices such as mobile phones and personal digital assistants. 【0093】 Although one embodiment of the present invention has been described above, the present invention is not limited thereto and includes the invention described in the claims and its equivalents. The invention described in the claims of this application is listed below. 【0094】 (Note) The invention described in claim 1 is a switch device comprising: a case provided with a through hole; a cylindrical member having a small-diameter cylindrical portion inserted into the through hole of the case and a large-diameter cylindrical portion protruding to the outside of the case; and an operating member disposed inside the cylindrical member and protruding to the outside of the cylindrical member, wherein a waterproof groove is provided on the inner surface of the large-diameter cylindrical portion of the cylindrical member corresponding to the outer surface of the case, and a waterproof member is provided inside the waterproof groove. 【0095】 The invention described in claim 2 is a switch device according to claim 1, characterized in that the waterproof groove is provided in the axial direction of the large diameter cylindrical portion and is provided along the outer circumference of the small diameter cylindrical portion. 【0096】 The invention described in claim 3 is a switch device according to claim 1 or claim 2, characterized in that the waterproofing member is formed in a substantially triangular ring shape in cross-section such that when the waterproofing member is freely placed in the waterproofing groove, a part of the waterproofing member protrudes from the waterproofing groove. 【0097】 The invention described in claim 4 is a switch device according to any one of claims 1 to 3, characterized in that the waterproof member has a projection that protrudes from the waterproof groove toward the case when in a free state and is elastically crushed by the outer surface of the case and pushed into the waterproof groove. 【0098】 The invention described in claim 5 is a switch device according to any one of claims 1 to 4, wherein the waterproof member has an inclined portion that, when in a free state, is inclined toward the case from the center of the waterproof member toward the outer periphery of the waterproof member, and is elastically compressed by the outer surface of the case and pushed into the waterproof groove. 【0099】 The invention described in claim 6 is a switch device according to claim 5, characterized in that a chamfered portion is provided on the outer edge of the through hole of the case, corresponding to the inclined portion of the waterproofing member. 【0100】 The invention described in claim 7 is a switch device according to any one of claims 1 to 6, characterized in that the operating member comprises an operating shaft portion which is slidably and rotatably disposed within the cylindrical member and protrudes to the outside of the cylindrical member, and an operating head portion which is attached to cover the outer end of the operating shaft portion which protrudes from the cylindrical member. 【0101】 The invention described in claim 8 is a switch device according to claim 7, characterized in that it is equipped with a locking mechanism that locks the operating head to the large-diameter cylindrical portion of the cylindrical member that protrudes outside the case. 【0102】 The invention described in claim 9 is a switch device according to claim 7 or claim 8, characterized in that the operating head comprises a locking portion that locks to the large-diameter cylindrical portion of the cylindrical member, and a cover portion that covers the operating shaft portion and is provided with the locking portion. 【0103】 The invention described in claim 10 is a switch device according to claim 9, characterized in that the operating head is provided with a first rotation stopper for rotating the locking portion and the cover portion integrally. 【0104】 The invention described in claim 11 is a switch device according to claim 9 or claim 10, characterized in that the operating member is provided with a second rotation stopper for rotating the operating shaft portion and the cover portion integrally. 【0105】 The invention described in claim 12 is a clock characterized by comprising a switch device described in any one of claims 1 to 11. [Explanation of symbols] 【0106】 1 Watch Case 2 Band mounting section 3 Push-button switch 4. Switching device 5. Watch glass 6. Case back 7 Clock Module 8 Through holes 8a Chamfered section 10. Cylindrical member 11 Operating member 12 Small diameter cylinder part 13 Large diameter cylindrical section 13a Male thread 14 Waterproof groove 15 Waterproof gasket 15a Main body 15b Protrusion 15c Slope 16 Operation shaft section 17 Control head 18 Shaft section 18a Connection hole 19 Control section 19a bottom 19b Cavity recess 20 Waterproof Rings 21 Inner cylinder part 22 Outer cylinder part 24 Lock section 24a Female thread 25 Cover section 25a Inner surface 25b Crimping section 26 Spring component 27. Screw lock mechanism 28. First rotation stopper 28a First lock plane section 28b First cover planar section 29 Second rotation stopper 29a 2nd operation plane part 29b Second cover planar section 30 Spring guide section

Claims

[Claim 1] Cases with through holes, A cylindrical member having a small-diameter cylindrical portion inserted into the through-hole of the case and a large-diameter cylindrical portion protruding from the outside of the case, An operating member is disposed inside the cylindrical member and protrudes to the outside of the cylindrical member, Equipped with, A waterproof groove is provided on the inner surface of the large-diameter cylindrical portion of the cylindrical member corresponding to the outer surface of the case, and a waterproof member is provided inside the waterproof groove. The operating member comprises an operating shaft portion that is slidably and rotatably disposed within the cylindrical member and protrudes to the outside of the cylindrical member, and an operating head portion that is attached to cover the outer end of the operating shaft portion that protrudes from the cylindrical member. The case is equipped with a locking mechanism that locks the operating head to the large-diameter cylindrical portion of the cylindrical member that protrudes outside the case. A switch device characterized by the following features. [Claim 2] In the switch device according to claim 1, The waterproof groove is provided in the axial direction of the large-diameter cylindrical portion and is provided along the outer circumference of the small-diameter cylindrical portion. A switch device characterized by the following features. [Claim 3] In the switch device according to claim 1 or claim 2, The waterproofing member is formed in a ring shape with a substantially triangular cross-section such that when it is freely placed within the waterproofing groove, a portion of the waterproofing member protrudes from within the waterproofing groove. A switch device characterized by the following features. [Claim 4] In the switch device according to any one of claims 1 to 3, The waterproofing member has a projection that, when in a free state, protrudes from within the waterproofing groove toward the case and is elastically compressed by the outer surface of the case, pushing it into the waterproofing groove. A switch device characterized by the following features. [Claim 5] In the switch device according to any one of claims 1 to 4, The waterproofing member has an inclined portion that, when in a free state, slopes toward the case from the center of the waterproofing member toward the outer periphery of the waterproofing member, and is elastically compressed by the outer surface of the case and pushed into the waterproofing groove. A switch device characterized by the following features. [Claim 6] In the switch device according to claim 5, A chamfered portion is provided on the outer edge of the through hole in the case, corresponding to the inclined portion of the waterproofing member. A switch device characterized by the following features. [Claim 7] In the switch device according to claim 1, The operating head comprises a locking portion that locks into the large-diameter cylindrical portion of the cylindrical member, and a cover portion that covers the operating shaft portion and is provided with the locking portion. A switch device characterized by the following features. [Claim 8] In the switch device according to claim 7, The operating head is equipped with a first rotation stopper for rotating the locking portion and the cover portion together. A switch device characterized by the following features. [Claim 9] In the switch device according to claim 7 or claim 8, The operating member includes a second rotation stopper for rotating the operating shaft portion and the cover portion integrally. A switch device characterized by the following features. [Claim 10] The device is characterized by comprising a switch device as described in any one of claims 1 to 9. A watch.

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