Electronic watch, exterior member and band

Abstract

To make it possible to easily attach / detach a band to / from a watch body.SOLUTION: A watch 100 to be an electronic watch includes: a watch body 1; and a bezel 3 to be an exterior member that is attached to the watch body 1 and holds a band 5. The bezel 3 has an opening 35 (a first opening) formed on one end side. The opening 35 has a projection part 36 (a first projection part) projecting into the opening 35 on a side 35a facing a rear surface of the band 5 inserted in the opening 35. The band 5 has: a second part 52 to be a first plane part on the rear surface; and a first part 51 to be a second plane part projecting from the second part 52 on the rear surface. A boundary part between the first part 51 and the second part 52 is a step part 53 and, when the band 5 is inserted in the opening 35 of the bezel 3, which causes the step part 53 to engage the projection part 36, the band 5 is held by the bezel 3.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an electronic timepiece, an exterior member, and a band. [Background technology]

[0002] Conventionally, there are known configurations that allow a band to be attached to or detached from a watch body. For example, Patent Document 1 describes a structure in which a raised portion with a slit hole is provided on the back surface of the watch body, and after the band is inserted into the slit hole, a cover is fitted onto the raised portion, thereby sandwiching and fixing the band between the watch body and the cover. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3240182 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the configuration described in Patent Document 1, when attaching or detaching the band, it is necessary to first attach or detach the lid, making it difficult to attach or detach the band easily.

[0005] The present invention has been made to solve these problems, and has as its object to provide an electronic timepiece, exterior member, and band that allow the band to be easily attached to and detached from the timepiece body. [Means for solving the problem]

[0006] In order to solve the above problems, the electronic timepiece according to the present invention comprises: The watch comprises a watch body and an exterior member that is attached to the watch body and is capable of holding a band, the exterior member having a first opening formed on one end side, the first opening having a first protrusion that protrudes into the first opening on an edge facing the back surface of the band that is inserted into the first opening, the band having a first flat portion on the back surface and a second flat portion that protrudes further than the first flat portion on the back surface, the boundary portion between the first flat portion and the second flat portion being a stepped portion, and when the band is inserted into the first opening of the exterior member, the stepped portion and the first protrusion engage to hold the band to the exterior member. [Effects of the Invention]

[0007] According to the present invention, the band can be easily attached to and detached from the watch body. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 10 is a perspective view of the main part showing how the exterior member according to the embodiment is attached to the front side of the timepiece body according to the embodiment. [Figure 2] FIG. 2 is a plan view of the rear side of the timepiece body according to the embodiment. [Figure 3] FIG. 2 is a perspective view of the exterior member according to the embodiment, as viewed from the inside. [Figure 4] FIG. 2 is a plan view of the watch body with the exterior member attached, viewed from the back side. [Figure 5] 5 is a side view of the watch body with the exterior member attached, seen from the direction of the arrow V in FIG. 4. [Figure 6] (a) is an oblique view of the band according to the embodiment as seen from the back side, and (b) is an oblique view of the main parts as seen from the front side of the watch, showing how the band shown in (a) is attached to a watch body with an exterior member attached. [Figure 7] (a) is a front view showing the timepiece of the first embodiment, (b) is a back view of the timepiece shown in (a), and (c) is a cross-sectional view along line cc of the timepiece shown in (a). [Figure 8]8 is a cross-sectional view taken along line VIII-VIII of the watch body to which the exterior member shown in FIG. 4 is attached. [Figure 9] 9 is a cross-sectional view taken along line IX-IX of the watch body to which the exterior member shown in FIG. 4 is attached. [Figure 10] FIG. 7(a) is a cross-sectional view taken along line XX of the timepiece shown in FIG. [Figure 11] 10 is a cross-sectional side view of the main part showing how the band is attached to the exterior member attached to the watch body. FIG. [Figure 12] 1 is a cross-sectional side view of a main part showing a state in which a band is attached to an exterior member attached to a watch body. [Figure 13] FIG. 13 is a cross-sectional side view of the essential parts showing an image of the band of the watch shown in FIG. 12 when wrapped around the wrist of the wearer. [Figure 14] FIG. 10 is a front view showing a timepiece according to a second embodiment. [Figure 15] FIG. 10 is a perspective view showing the assembly of a timepiece according to a second embodiment by attaching an exterior case to the timepiece body. [Figure 16] FIG. 15 is a plan view showing the back side of the watch shown in FIG. 14. [Figure 17] FIG. 17 is a plan view showing the watch shown in FIG. 16 with the back cover removed. [Figure 18] 17 is a cross-sectional view taken along line XVIII-XVIII of the timepiece shown in FIG. 16. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of an electronic timepiece according to the present invention will be described with reference to the drawings. The following embodiment is subject to various limitations that are technically preferable for carrying out the present invention, but the scope of the present invention is not limited to the following embodiment and illustrated examples. In the embodiment described below, the electronic timepiece will simply be referred to as a "timepiece."

[0010] As shown in Figures 1 and 14, the watch according to this embodiment includes an electronic watch body (hereinafter simply referred to as "watch body 1") and an exterior member that can be attached to the watch body 1. In this embodiment, the exterior member is either a first member or a second member that can be selectively attached to the watch body 1. The first member is a bezel 3 to which a band 5 can be attached, and the second member is an exterior case 7, with the bezel 3 and exterior case 7 being detachable from the watch body 1. Below, the state in which the bezel 3 is attached to the watch body 1 will be described as "watch 100" in the first embodiment, and the state in which the exterior case 7 is attached to the watch body 1 will be described as "watch 200" in the second embodiment. Note that the configuration of the watch body 1 is the same in both the first and second embodiments. For this reason, the watch body 1 will be described first as the configuration common to both the first and second embodiments.

[0011] The watch body 1 according to the embodiment includes a main body case 11 that houses a watch module (not shown) inside, and a back cover 12 that is attached to the back side of the main body case 11. The main body case 11 is made of, for example, various synthetic resins, and the back cover 12 is made of, for example, various metals such as stainless steel (SUS).

[0012] As shown in FIG. 2, the watch body 1 in this embodiment has a substantially rectangular outer shape in a plan view. The watch body 1 has multiple protrusions that jut outward. The vertices of the protrusions form the outermost shape Es of the watch body 1. In FIG. 2, the outermost shape Es of the watch body 1 is indicated by a dashed line. As shown in FIG. 2, the watch body 1 in this embodiment is substantially symmetrical in both the top-to-bottom and left-to-right shapes, and the shape of the outermost shape Es and the length of each corresponding side are substantially the same on the 6 o'clock and 12 o'clock sides and the 3 o'clock and 9 o'clock sides of an analog watch. For this reason, the watch body 1 has substantially the same shape whether it is rotated 90 degrees or 180 degrees.

[0013] The watch module housed in the main body case 11 includes various components (none of which are shown) necessary for timekeeping functions, such as a display unit that displays information such as the time, a drive unit that drives the display unit, and a circuit unit that controls these components. In this embodiment, the display unit includes a display panel 13 (see FIG. 1) exposed on the front side of the watch main body 1, and various information such as the time, date, and day of the week is displayed on the display panel 13. The display panel 13 is configured, for example, with a liquid crystal display (LCD), an organic electroluminescence display, or other flat display. Note that the display unit is not limited to having a display panel 13 that displays the time and other information digitally. For example, it may be an analog display unit with hands and a dial, or a so-called combination model with a display unit that supports both analog and digital display.

[0014] An operation unit 14 is provided on the outer side of the main body case 11. The operation unit 14 is a portion such as a push button or a crown through which the user inputs various operations. Figures 1 and 2 show an example in which two operation units 14 are provided on each of the two sides of the analog watch, on the 3 o'clock side and the 9 o'clock side. The operation units 14 are second protrusions provided on the watch body 1. The operation units 14 protrude from the outer sides of the 3 o'clock side and the 9 o'clock side of the watch body 1, and as shown by the dashed lines in Figure 2, the apexes of the protruding sides form the outermost shape Es of the watch body 1 on the 3 o'clock side and the 9 o'clock side.

[0015] 2, the back cover 12 is attached to the main case 11 by screws on two opposing sides of the watch body 1. The parts where the main case 11 and back cover 12 are screwed together are provided with screw hole spaces 16 in which screw bosses with threaded holes (not shown) are located. In this embodiment, the back cover 12 is fixed with two screws 15 on each of the two sides, the 6 o'clock side and the 12 o'clock side of the analog timepiece. In other words, the parts where the back cover 12 is screwed (screw hole spaces 16) are located on a side different from the side on which the operating unit 14 is located.

[0016] Additionally, back cover 12 is screwed in place, avoiding the watch module housed inside main case 11. For this reason, screw hole spaces 16 are provided outside the space in which the watch module is housed, and are multiple protrusions formed on the outer periphery of watch main body 1. Screw hole spaces 16, which are protrusions, protrude outward from watch main body 1, and as shown by the dashed lines in Figure 2, the apexes of the protrusions form the outermost shape Es of watch main body 1 on the 6 o'clock and 12 o'clock sides.

[0017] Between adjacent screw hole spaces 16, which are protruding portions, first protrusions 17 are formed by thickening the screw hole spaces 16 to connect the screw hole spaces 16. The first protrusions 17 are provided in a range that does not protrude outward beyond the apex of the protruding sides of the connected screw hole spaces 16 (i.e., inside the outermost shape Es of the watch body 1). In the embodiment, Figure 2 and other figures show an example in which the first protrusions 17 are formed to connect adjacent screw hole spaces 16 (protruding portions) so that they are approximately flush. This allows the outermost shape Es of the watch body 1 to have a shape with few irregularities and excellent design. Note that the shape of the first protrusions 17 is not limited to the example shown in the figure, and for example, it may be recessed inward from the line connecting adjacent screw hole spaces 16 (protruding portions).

[0018] In the watch 100 according to this embodiment, when attaching the band 5 as described below, the band 5 is positioned so that it passes through the back side of the watch body 1 (the side where the back cover 12 is provided). The screws 15 that secure the back cover 12 are positioned on the path that the band 5 passes through when attaching the band 5. The screws 15 are provided on the back side of the watch body 1, and because the screws 15 are made of various metals such as stainless steel (SUS), if the band 5 comes into contact with the screws 15 (especially the screw heads), the front side of the band 5 may be rubbed or scraped, resulting in damage.

[0019] In this regard, the watch body 1 of this embodiment is provided with a protective protrusion 18 that protrudes beyond the apex (screw head) of the screw 15 on the back side (back side of the watch body 1) of the first protrusion 17, near the screw 15 (see FIGS. 2, 4, and 10). The extent to which the protective protrusion 18 protrudes beyond the apex (screw head) of the screw 15 is a matter that can be set appropriately. However, if the protective protrusion 18 protrudes too much, it will obstruct the passage of the band 5 when attaching it. For this reason, as shown in FIG. 8, for example, it is preferable that the protective protrusion 18 protrudes beyond the apex of the screw 15, but not below the surface of the back side of the case back 12.

[0020] 2 and other figures, protective protrusion 18 is illustrated as a quadrangular prism having a substantially rectangular shape in plan view, but the shape of protective protrusion 18 is not limited to the illustrated example. For example, protective protrusion 18 may be a cylinder having a circular or elliptical shape in plan view. In addition, protective protrusion 18 is preferably subjected to chamfering or rounding to remove the corners of the surface facing band 5 so that the surface of band 5 does not get caught.

[0021] [First embodiment] In the first embodiment, the exterior member (first member) that constitutes the timepiece 100 is a bezel 3 that is attached to the timepiece main body 1. The bezel 3 has a first opening formed on at least one end. The band 5 is designed to be inserted into this first opening, and when the band 5 is inserted into the first opening, a first protrusion 36 protrudes into the first opening on an edge 35a that faces the back surface of the band 5 (the surface that is not visible when the band is worn on the wrist, the lower surface in FIG. 10). In this embodiment, the bezel 3 is attached to the timepiece main body 1 so as to surround the outer periphery of the timepiece main body 1. The bezel 3 in this embodiment will be described in detail below with reference to FIGS. 1, 3, etc.

[0022] As shown in FIGS. 1 and 3, the bezel 3 according to this embodiment has a frame portion 31, a side portion 32, and an extension portion 34. The frame portion 31 is positioned on the front side of the watch body 1 when attached to the watch body 1. The side portion 32 hangs down from the frame portion 31 and is positioned on the side of the watch body 1 when attached to the watch body 1. The extension portion 34 is a portion that extends downward from the back surface of the watch body 1 (the back cover 12 in this embodiment) when the bezel 3 is attached to the watch body 1. In this embodiment, as shown in FIGS. 4 and 5, etc., a pair of extension portions 34 are provided in positions facing each other across the watch body 1 when the bezel 3 is attached to the watch body 1.

[0023] In this embodiment, as shown in FIG. 1 , the bezel 3 is attached from the front side of the watch body 1, and the extensions 34 are provided on the side of the watch body 1 where the first protrusions 17 are provided. That is, in this embodiment, the extensions 34 are provided at positions that would be the 6 o'clock and 12 o'clock sides of the analog watch when attached to the watch body 1. The bezel 3 is made of a urethane resin such as polyurethane (PUR). It is preferable that the bezel 3 be made of a synthetic resin such as urethane resin and have overall flexibility, with at least the extensions 34 being elastically deformable. However, the material from which the bezel 3 is made is not limited to this.

[0024] When the bezel 3 is attached to the watch body 1, the frame-shaped portion 31 exposes at least a portion of the display panel 13 of the watch body 1 within the frame, making various displays such as the time visible. The side portions 32 are each formed with an engagement hole 33 at a position that corresponds to the operation unit 14 of the watch body 1 when the bezel 3 is attached to the watch body 1. In this embodiment, the engagement hole 33 is a through-hole into which the operation unit 14, which is a second protrusion, is inserted, and when the bezel 3 is attached to the watch body 1, the operation unit 14 is fitted into the engagement hole 33. When the bezel 3 is attached to the watch body 1, the operation unit 14 is exposed from the engagement hole 33, making it possible to operate the operation unit 14 from the outside while the bezel 3 is attached.

[0025] A pair of openings 35 are formed in each of the pair of extension portions 34. The opening 35 formed in one extension portion 34 is also referred to as the first opening, and the opening 35 formed in the other extension portion 34 is also referred to as the second opening. The openings 35 are portions through which the band 5 is inserted when the band 5 is attached, and have a width that is equal to or greater than the width of the band 5. The openings 35 only need to be located in positions that face each other across the watch body 1 when the bezel 3 is attached to the watch body 1; for example, if the side surface portions 32 extend downward from the back surface of the watch body 1 and face each other, the openings may be formed in opposing positions on the side surface portions 32.

[0026] A protrusion 36 (first protrusion) that protrudes into the opening 35 (first opening) is provided on an edge 35a of the opening 35 that faces the back surface of the band 5 when the band 5 is inserted through the opening 35. Note that the bezel 3 is provided with a first protrusion provided in the first opening formed on at least one end, but in this embodiment, a first opening and a second opening are provided at positions facing each other across the watch body 1, and each opening 35 is provided with a protrusion 36 (first protrusion and second protrusion) that protrudes into the opening 35 (first opening and second opening). Note that the protrusion 36 may be provided in only one of the pair of openings 35 (first opening and second opening).

[0027] The band 5 inserted into the opening 35 has a second portion 52, which is a first flat portion on the back surface, and a first portion 51, which is a second flat portion that protrudes from the second portion 52 (the first flat portion on the back surface), as described below. That is, the first portion 51, which is the second flat portion, and the second portion 52, which is the first flat portion, have different heights in the thickness direction, and the first portion 51 protrudes more toward the back surface than the second portion 52, making it taller in the thickness direction. As described below, the boundary between the second portion 52, which is the first flat portion, and the first portion 51, which is the second flat portion, forms a step portion 53. In the embodiment, the first portion 51 has a thickness (first thickness) that is just enough to pass through or is greater than the portion of the bezel 3 where the protrusion 36 is provided. However, the protrusion 36 is elastically deformable, and when the first portion 51 gets caught when the band 5 is inserted into the opening 35, the protrusion 36 falls in the insertion direction X (see FIG. 6(a) and the like), allowing the band 5 to pass through. When the protrusion 36 is placed in the second portion 52, it returns to its original shape and engages with a step 53 that is the boundary between the first portion 51 and the second portion 52. Note that the tip of the protrusion 36 is preferably chamfered or rounded on the upstream side of the insertion direction X of the band 5 to make it easier to insert the band 5. It is also preferable that the protrusion 36 be angled (inclined) slightly toward the insertion direction X of the band 5.

[0028] The bezel 3 is also provided with a component-side locking portion that is locked to the first protrusion 17 at a position corresponding to the first protrusion 17 when the bezel 3 is attached to the watch body 1. In this embodiment, the component-side locking portion is a first engagement portion 37. As shown in FIG. 3, the first engagement portion 37 is located on the inner surface of the pair of extension portions 34, above the opening 35. As shown in FIG. 9 and other figures, the first engagement portion 37 is a claw or protrusion that has a hook-like or hook-like shape and protrudes toward the inside of the bezel 3, and is positioned so as to abut against the first protrusion 17 from below (the lower side, back side in FIG. 1) when the bezel 3 is attached to the watch body 1 so as to surround the outer periphery of the watch body 1.

[0029] As described above, in this embodiment, the bezel 3, which is the first member, has a first engagement portion 37 as a member-side locking portion provided in a position corresponding to the first protrusion 17, and an engagement hole portion 33 provided in a position corresponding to the operating unit 14, which is the second protrusion. When the bezel 3 is attached to the watch body 1, the first engagement portion 37 engages with the first protrusion 17, and the operating unit 14 fits into the engagement hole portion 33, thereby locking the bezel 3 to the watch body 1.

[0030] Furthermore, in the first embodiment, by attaching the band 5 to the bezel 3 attached to the watch body 1, the watch 100 functions as a wristwatch that can be worn on the wrist Wr (note that the wrist Wr is shown by a two-dot chain line in FIG. 13) as the intended wearer. As shown in FIG. 6(a), the band 5 comprises a band body 50, and a buckle 55 and a fastening rod 56 provided on one end of the band body 50. In addition, a keeper ring 57 is attached to the side of the band body 50 where the buckle 55 etc. are provided, through which the other end of the band 5 passes when the band 5 is attached to the intended wearer (wrist Wr).

[0031] Band body 50 is flexible and formed in a long strip shape from a variety of relatively flexible synthetic resins, such as urethane resins such as polyurethane (PUR), silicone resins, fluorine rubber, etc. Band body 50 has a sweat escape portion 50a in the widthwise center that is recessed more than the periphery, which prevents or reduces the band 5 from sticking to the skin when worn on the wrist (Wr).

[0032] As shown in Figures 6(a) and 6(b), the band main body 50 has a first portion 51 having a first thickness in approximately the center in the longitudinal direction L, and second portions 52 on both sides of this first portion 51 in the longitudinal direction L that are thinner than the first portion 51. The boundary between the first portion 51 and the second portion 52 forms a step portion 53. When the bezel 3 is attached to the watch body 1, the band 5 is inserted into a pair of openings 35 of the bezel 3 formed in opposing positions across the watch body 1, starting from the insertion end 50b of the band main body 50 (see Figures 6(b) and 11), and is positioned so as to pass through the back side of the watch body 1, as shown in Figures 7(a) to 7(c).

[0033] The band main body 50 has an uneven portion 50c (see, for example, the area surrounded by a dashed line in FIG. 7(c) ) on the back side to improve design and allow the band 5 to fit easily around the wrist Wr or the like when worn on the wrist Wr or the like. However, these uneven portions 50c rise at a gentler angle from the reference surface (the surface of the band main body 50) than the stepped portion 53, making it easier to pull the band 5 through the opening 35 and less likely to get caught. Although the band main body 50 has portions that protrude from the front and back sides as appropriate, the thickness of the band main body 50 is generally uniform overall. This makes it easier to pull the band 5 through the opening 35 of the bezel 3 and attach and detach it. Furthermore, making the thickness of the entire band generally uniform also makes it easier to apply decorative surface printing to the band 5.

[0034] In this embodiment, the insertion end 50b has a tapered shape, with a thickness that decreases toward the tip and a width that narrows as well. This allows the band 5 (band main body 50) to be inserted more smoothly into the opening 35. Note that in FIGS. 6(b), 11, and 12, the direction in which the band 5 is inserted into the opening 35 of the bezel 3 is indicated as the insertion direction X. When the first portion 51 is positioned on the back side of the watch body 1 (the state shown in FIG. 12), the protrusion 36 protruding into the opening 35 of the bezel 3 engages with the stepped portion 53 of the band 5. This holds the band 5 in the bezel 3. Then, by inserting the band 5 into the back side of the watch body 1 in this manner, the watch body 1 is sandwiched between the bezel 3 and the band 5 (see FIGS. 7(b), 7(c), and 12), which more firmly maintains the engagement between the watch body 1 and the bezel 3 and reliably prevents the watch body 1 from coming off the bezel 3.

[0035] Next, the operation of a watch 100, which is an electronic watch according to a first embodiment, will be described with reference to Figures 10 to 13, etc. In the first embodiment, when attaching the bezel 3, which is the first component, to the watch body 1, as shown in Figure 1, the bezel 3 is placed over the front side of the watch body 1, with at least a portion of the display panel 13 exposed within the frame of the frame-shaped portion 31. The bezel 3 is then slightly expanded, and the operating units 14 provided on the 3 o'clock and 9 o'clock sides of the watch body 1 are fitted into the engaging holes 33 of the bezel 3, respectively, so that the protruding end portions (button heads) are exposed and operable from the engaging holes 33. The bezel 3 is then locked to the watch body 1 by engaging the first engaging portions 37, which serve as component-side locking portions, with the first protrusions 17 provided on the 6 o'clock and 12 o'clock sides of the watch body 1.

[0036] Once the bezel 3 is locked to the watch body 1, as shown in FIG. 6(b), the band body 50 of the band 5 is inserted into the opening 35 of the bezel 3 from the side of the watch 100 where the buckle 55 and locking pin 56 of the band 5 are located (the 12 o'clock side of an analog watch in this embodiment). As shown in FIG. 11, the extension 34 (at least the protrusion 36 provided on the extension 34) is elastically deformable, and when the band 5 is inserted into the opening 35, it is tilted appropriately along the insertion direction X as the band 5 passes through. When the first portion 51 of the band 5 is pulled through to a position corresponding to the back surface of the watch body 1 and the protrusion 36 is positioned in the second portion 52, which is thinner than the first portion 51, the protrusion 36 returns to its original state and engages with the stepped portion 53, as shown in FIG.

[0037] In this embodiment, as shown in Figure 10, the protrusion 36 fits into the sweat escape portion 50a, which is recessed in the cross section of the band main body 50 relative to the periphery. This allows the sweat escape portion 50a to act as a guide, allowing the band main body 50 to be pulled straight through in the insertion direction X. Furthermore, the band 5 is pulled through the opening 35 with the front side of the band main body 50 facing the back side of the watch main body 1, and protective protrusions 18 are provided near the screws 15 exposed on the back side of the watch main body 1. This prevents the surface of the band main body 50 from interfering with the screws 15 and being damaged.

[0038] As shown in FIG. 13 , to wear the watch 100 with the band 5 attached on the wrist Wr of the user, the band 5 is wrapped around the wrist Wr, the hook 56 is fastened to the small hole 58 corresponding to the thickness of the user's wrist, and the buckle 55 is passed through. The remaining end of the band body 50 (the end on the insertion end 50b side) is then passed through the circumferential loop 57 and fastened. When the band 5 is worn on the wrist Wr while inserted through the opening 35, both ends of the band 5 are pulled in the direction of fitting to the wrist Wr (in the direction indicated by the arrow in FIG. 13 ). This causes the relatively thin second portion 52 to flex and deform so as to fit the wrist Wr, and the extension 34 where the opening 35 is provided elastically deforms so as to flex inward (the side indicated by the arrow in FIG. 13 , toward the watch body 1), and the protrusion 36 of the opening 35 is pressed against the stepped portion 53 when the extension 34 is in the flexed state. This allows the timepiece 100 of this embodiment to be worn on a wrist Wr or other such target, and the band 5 is securely fastened to the bezel 3, ensuring it will not fall off. In this state, the watch body 1 is also sandwiched between the band 5 and the bezel 3 and is securely fixed in place.

[0039] Furthermore, when removing the bezel 3 from the watch body 1, first remove the band 5 from the opening 35 in the extension portion 34 of the bezel 3. The band 5 can be removed from the bezel 3 by pulling it in the opposite direction to the insertion direction X after removing it from the wrist Wr on which it is to be worn. After the band 5 is removed, the extension portions 34 of the bezel 3 are pushed apart (outward toward the 6 o'clock and 12 o'clock sides, respectively). This causes the first engagement portions 37, serving as component-side locking portions provided on each extension portion 34, to be removed from under the first protrusions 17 of the watch body 1, thereby releasing the engagement. The side portions 32 of the bezel 3 are also pushed apart (outward toward the 3 o'clock and 9 o'clock sides, respectively), and the operating portions 14 inserted into the engagement holes 33 are removed, releasing the engagement state. This allows the band 5 and bezel 3 to be removed from the watch body 1.

[0040] In this way, the bezel 3 of the watch 100 of this embodiment can be easily attached and detached from the watch body 1, and it is possible to replace it with a different bezel 3 of a different color, material, shape, etc., or to replace the band 5 attached to the bezel 3. Furthermore, it is also possible to attach components other than the bezel 3 to the watch body 1 (for example, the exterior case 7 shown in the second embodiment).

[0041] Next, the effects of a watch 100, which is an electronic watch according to a first embodiment, a bezel 3, and a band 5 will be described. The effects of the will be described. The watch 100, which is an electronic watch according to this embodiment, comprises a watch body 1 and a bezel 3, which is an exterior member that is attached to the watch body 1 and can hold a band 5. The bezel 3 has an opening 35 (first opening) formed on one end, and the opening 35 has a protrusion 36 (first protrusion) that protrudes into the opening 35 on an edge 35a facing the back surface of the band 5 inserted into the opening 35. The band 5 has a second portion 52 that is a first flat portion on the back surface and a first portion 51 that is a second flat portion that protrudes further than the second portion 52 on the back surface, and the boundary between the first portion 51 and the second portion 52 is a step portion 53. When the band 5 is inserted into the opening 35 of the bezel 3, the step portion 53 engages with the protrusion 36, thereby holding the band 5 to the bezel 3 and, ultimately, the watch body 1 to which the bezel 3 is attached.

[0042] Thus, in this embodiment, by attaching the band 5 to the bezel 3 attached to the watch body 1, the watch body 1 is sandwiched and fixed between the band 5 and the bezel 3, and cannot be easily removed when the watch 100 is worn on the wrist Wr. Meanwhile, the band 5 only engages with the protrusion 36 of the bezel 3, and can be easily removed by releasing the portion that is hooked onto the protrusion 36 (step portion 53 in this embodiment). This allows the user to easily attach and remove the band 5 to and from the watch body 1, allowing them to enjoy changing the band 5 and other accessories.

[0043] In the embodiment, the bezel 3 (at least the protrusions 36 of the bezel 3) is elastically deformable, and when the band 5 is inserted into the opening 35, the band 5 passes through while tilting along the insertion direction X, and returns to its original shape at the second portion 52, which has a smaller thickness, and engages with the stepped portion 53, which is the boundary with the first portion 51. Therefore, when the band 5 is pulled through the opening 35, it can be pulled through smoothly with little resistance to catching, and the elastic deformation of the protrusions 36 can be used to reliably lock the band 5 into the stepped portion 53. This allows the user to easily put on and take off the band 5 without any stress.

[0044] As described above, the bezel 3 of the embodiment is detachable from the watch body 1, so it can be easily replaced with a different bezel 3 of a different color, material, shape, etc., or the band 5 attached to the bezel 3. Furthermore, various exterior cases other than the bezel 3 can be easily attached.

[0045] Furthermore, when the bezel 3 of this embodiment is attached to the watch body 1, it has a pair of extensions 34 that extend downward from the back surface of the watch body 1 at opposing positions across the watch body 1, and a pair of openings 35 are formed in each of the pair of extensions 34. This means that even when using the watch body 1 as a wristwatch with a band, there is no need to provide a band attachment section on the watch body 1, making it possible to reduce the size of the watch body 1. Furthermore, by passing the band 5 through the pair of openings 35, the watch body 1 can be held from the back surface as well, making it possible to more reliably prevent the watch body 1 from coming off the bezel 3.

[0046] In this embodiment, when the band 5 inserted through the opening 35 is worn on the wrist Wr or the like, the extension portion 34 is pulled toward the wrist Wr or the like and elastically deforms to bend. When the extension portion 34 is in a bent state, the protrusion 36 of the opening 35 is pressed against the step portion 53. Therefore, when the band 5 is worn on the wrist Wr or the like, the watch body 1, bezel 3, and band 5 are more reliably integrated, making it less likely that the band 5 or watch body 1 will come off the bezel 3.

[0047] The watch body 1 of the embodiment has a first engagement portion 37 at a position corresponding to the first protrusion 17 when the bezel 3 is attached. The bezel 3 is locked to the watch body 1 by engaging the first engagement portion 37 with the first protrusion 17. The watch body 1 of the embodiment also has an operating portion 14 as a second protrusion in addition to the first protrusion 17, and the bezel 3, which is the first member, further has an engagement hole 33 provided at a position corresponding to the operating portion 14. When the bezel 3 is attached to the watch body 1, the first engagement portion 37 engages with the first protrusion 17 and the operating portion 14 is fitted into the engagement hole 33, thereby locking the bezel 3 to the watch body 1. For this reason, the bezel 3 can be locked to the watch body 1 with a stronger fixing force than when the bezel 3 is locked solely by the engagement between the first engagement portion 37 and the first protrusion 17.

[0048] Furthermore, this engagement hole 33 is a through-hole into which the operating unit 14 is inserted, and when the bezel 3 is attached to the watch body 1, the operating unit 14 is exposed from the engagement hole 33. This allows the user to operate the operating unit 14 of the watch body 1 while the bezel 3 is attached. Furthermore, because the operating unit 14 is locked into the through-hole, simply fitting the operating unit 14 into the engagement hole 33 can provide sufficient fixing force to lock the bezel 3 to the watch body 1.

[0049] Furthermore, the watch body 1 of this embodiment in particular is formed in a roughly rectangular shape when viewed from above, with first protrusions 17 provided on two opposing sides of the watch body 1 (the 6 o'clock and 12 o'clock sides of the watch), and the operating unit 14, which is the second protrusion, provided on the 3 o'clock and 9 o'clock sides of the watch, which are different from the sides on which the first protrusions 17 are provided. Therefore, when the first engagement portion 37 and the first protrusions 17 are engaged and the operating unit 14 is fitted into the engagement hole 33, the watch body 1 can be locked on three or more sides, allowing the bezel 3 to be locked to the watch body 1 more stably.

[0050] In addition, back cover 12 is screwed to the back side of watch body 1, and screws 15 that secure back cover 12 are located in the path that band 5 passes through when it is inserted into opening 35 of bezel 3. However, protective protrusions 18 that protrude beyond the screw head are provided near screws 15. This prevents the surface of band 5 from interfering with and being damaged by screws 15. In addition, in this embodiment, protrusions 36 are provided on edge 35a of opening 35 that faces the back surface of band 5 and protrude into opening 35, so that, together with protective protrusions 18 provided on the back side of watch body 1, they are positioned to sandwich band 5 from both the front and back. Therefore, in addition to the engagement between protrusions 36 and step portions 53, protective protrusions 18 also prevent band 5 from shifting position or falling off, and can be expected to hold band 5 more securely.

[0051] [Second embodiment] In the second embodiment, the watch 200 is made up of a watch body 1 and an exterior case 7. The shape, configuration, etc. of the watch body 1 are the same as those described above, so a detailed description thereof will be omitted. The exterior case 7 that constitutes the watch 200 is attached to the watch body 1 so as to surround the outer periphery of the watch body 1, and is a second member that is selectively attached to the watch body 1 in place of the bezel 3 that serves as the first member shown in the first embodiment.

[0052] As shown in FIG. 14 and other figures, the exterior case 7 of this embodiment has a protruding locking portion 73 having a locking hole 731 formed on the outer side (the upper outer side in FIG. 14 and other figures) of a case main body 71 that is substantially circular in plan view. As shown in FIG. 18, for example, the locking hole 731 penetrates from the front to the back, and serves as a through-hole through which a ring, a carabiner, various straps, ropes, etc. can be hooked or passed. The exterior case 7 is formed, for example, from silicone rubber with a relatively high rubber hardness (hardness). In this embodiment, the exterior case 7 is a transparent or translucent member, allowing the internal configuration to be seen from the outside. The materials forming the exterior case 7 are not limited to those shown here.

[0053] The exterior case 7 according to the embodiment has openings on the front and back. As shown in FIGS. 14 and 15 , the opening 72 on the front side is approximately the same size as or slightly smaller than the dimensions of the display panel 13 of the watch body 1. When the exterior case 7 is attached to the watch body 1, at least a portion of the display panel 13 of the watch body 1 is exposed, allowing various displays such as the time to be viewed. As shown in FIGS. 16 and 17 , an opening 75 on the back side of the exterior case 7 is large enough to allow the watch body 1 to be inserted or removed. As shown in FIGS. 15 and 16 , a back cover 74 is attached to the opening 75 on the back side to close the opening. A portion of the inner periphery of the opening 75 hooks onto the back cover 74 when the back cover 74 is attached. The portion hooked onto the back cover 74 is formed in a hook shape, preventing the back cover 74 from coming off. The back cover 74 is made of, for example, a transparent acrylic plate, allowing the contents stored inside to be viewed from the outside.

[0054] A housing section 76 for housing the watch main body 1 is provided within the exterior case 7. As shown in FIG. 17 and elsewhere, the housing section 76 is sized and shaped to roughly match the outermost shape Es (see FIG. 2) of the watch main body 1. For example, as shown in FIG. 17, the corresponding inner wall surfaces of the housing section 76 abut against the 1-2 o'clock, 4-5 o'clock, 7-8 o'clock, and 10-11 o'clock sides of the watch main body 1. This positions the watch main body 1 within the housing section 76 and prevents it from shifting or rattling. Furthermore, as shown in FIG. 17, for example, on the 3 o'clock and 9 o'clock sides of the watch main body 1 where the operating unit 14 is provided, sufficient space is provided to prevent the inner wall surfaces of the housing section 76 from coming into contact with the operating unit 14, preventing the operating unit 14 from being accidentally pressed when subjected to vibrations, etc.

[0055] Furthermore, the exterior case 7, which is the second component, has second engagement portions 77 as component-side engagement portions that engage with the first protrusions 17 when the watch is attached to the watch body 1. In this embodiment, the second engagement portions 77 as component-side engagement portions are provided in positions in the accommodation portion 76 that correspond to the first protrusions 17 of the watch body 1, as shown in FIGS. 17 and 18 . The second engagement portions 77 are a pair of tongue-shaped members that protrude inward from the inner wall of the accommodation portion 76, corresponding to positions on the 6 o'clock and 12 o'clock sides of the watch body 1 accommodated in the accommodation portion 76. When the watch body 1 is accommodated in the accommodation portion 76, the second engagement portions 77 abut against the first protrusions 17 from the back side (the side of the back cover 12 of the watch body 1) and engage with the first protrusions 17. In this embodiment, the exterior case 7 is engaged with the watch body 1 by engaging the second engagement portions 77 with the first protrusions 17.

[0056] In the first embodiment, when the bezel 3 is attached to the watch body 1, the first engagement portion 37 engages with the first protrusion 17, and the operating portion 14 fits into the engagement hole 33 to lock the bezel 3 to the watch body 1. However, in this embodiment, unlike the first embodiment, when the outer case 7 is attached to the watch body 1, it is locked to the watch body 1 simply by the engagement between the second engagement portion 77 and the first protrusion 17. Therefore, in order to firmly secure the outer case 7 to the watch body 1, it is preferable that the securing force of the second engagement portion 77 to the watch body 1 be greater than the securing force of the first engagement portion 37 to the watch body 1. For this reason, the second engagement portion 77 is formed thicker than the first engagement portion 37. Furthermore, the outer case 7 is formed, for example, from a relatively hard silicone rubber, and is more rigid than the bezel 3. Therefore, the watch body 1 can be sufficiently secured simply by the engagement between the second engagement portion 77 and the first protrusion 17.

[0057] As described above, in the watch body 1 of this embodiment, the first protrusion 17 is formed by connecting adjacent screw hole spaces 16 among the multiple screw hole spaces 16 that are protrusions so that they are substantially flush with each other. For this reason, the outermost shape Es of the watch body 1 is relatively linear with few irregularities, and even if the exterior case 7 is made of a transparent or translucent material and the watch body 1 can be seen from the outside, the design is highly attractive and the appearance can be enjoyed.

[0058] Furthermore, even when the watch body 1 is housed in the housing section 76, there is a small gap between the watch body 1 and the back cover 74 that closes the opening 75 on the back side of the exterior case 7, and photographs, various clippings, etc. can be inserted in this gap. In this embodiment, the back cover 74 is transparent, so when a photograph or other item is inserted, the photograph or other item inside can be seen from the outside through the back cover 74, and the back side of the exterior case 7 can also be customized according to the user's preferences. It is also possible to choose not to place a photograph or other item on the back side of the exterior case 7, and instead enjoy the logo or other item on the back cover 12 of the watch body 1.

[0059] Next, the operation of a watch 200, which is an electronic watch according to a second embodiment, will be described. In the second embodiment, when attaching the exterior case 7, which is the second component, to the watch main body 1, the watch main body 1 is placed into the accommodation section 76 through an opening 75 on the back side of the exterior case 7, as shown in Figures 15, 17, etc. At this time, the watch main body 1 is placed into the accommodation section 76 by pushing it in slightly so that the first protrusions 17 provided on the 6 o'clock and 12 o'clock sides of the watch main body 1 get over the second engagement sections 77, which serve as component-side locking sections, and fit into a predetermined position in the accommodation section 76.

[0060] As a result, when the watch main body 1 is accommodated in a predetermined position within the accommodation section 76, the pair of second engagement sections 77 come into contact with the first protrusions 17 from the back side (see FIG. 18 ), and the second engagement sections 77 engage with the first protrusions 17, locking the exterior case 7 to the watch main body 1. Furthermore, the inner wall of the accommodation section 76 abuts against the outer periphery of the watch main body 1 in areas other than the area where the operating section 14 is accommodated, preventing the watch main body 1 from shifting or rattling. The back cover 74 is then fitted into the opening 75 on the back side of the exterior case 7 to close the opening 75. This completes the watch. In this state, if a strap carabiner or the like is attached to the engagement section 73, the watch 200 with the watch main body 1 accommodated therein can be attached to a bag or the like and carried around.

[0061] Furthermore, when removing the exterior case 7 from the watch main body 1, first remove the back cover 74 from the opening 75 on the back side of the exterior case 7, and then bend the top and bottom of the exterior case 7 where the second engagement parts 77 are provided (top and bottom in FIG. 14 , the parts corresponding to the 6 o'clock and 12 o'clock sides of the watch main body housed inside) toward the front side of the exterior case 7. At this time, the watch main body 1 may be pushed from the front side to the back side of the exterior case. As a result, when the second engagement parts 77 disengage from the first protrusions 17 and the engagement state is released, the watch main body 1 can be removed from the exterior case 7. The user can then attach the bezel 3, which is the first member, to the watch main body 1 so that it can be worn on the wrist Wr, or they can enjoy changing it to an exterior case of a different color or shape.

[0062] Next, we will explain the effects of the watch 200, an electronic watch according to the second embodiment, and the watch body. In the watch 200 of this embodiment, in addition to the exterior case 7, the bezel 3 shown in the first embodiment, for example, is detachable, making it possible to selectively attach the bezel 3 and the exterior case 7 to the watch body 1. Therefore, by simply changing the attachment parts, a single watch body 1 can be used as a wristwatch worn on the wrist Wr, or can be enjoyed in a variety of variations, such as as an ornament with a strap.

[0063] Furthermore, as mentioned above, the watch body 1 has screw hole spaces 16 as multiple protrusions that protrude outward, with the apexes of the protrusions constituting the outermost shape Es (see FIG. 2) of the watch body 1, and these screw hole spaces 16 are formed by connecting adjacent screw hole spaces 16 so that they are substantially flush. For this reason, the outermost shape Es of the watch body 1 is relatively straight and has few irregularities, and even if the exterior case 7 is made of a transparent or translucent material and the watch body 1 can be seen from the outside, the watch body 1 has a highly aesthetic design and its appearance can be enjoyed.

[0064] Furthermore, in the watch body 1 of this embodiment, the first protrusion 17 that engages the component-side engaging portions (first engaging portion 37, second engaging portion 77) when attaching the bezel 3, which is the first component, and the exterior case 7, which is the second component, to the watch body 1 is formed so that it does not protrude outward beyond the apex of the protruding side of the connected screw hole space 16. Therefore, a configuration for attaching the bezel 3 and exterior case 7 to the watch body 1 can be realized without changing the outermost shape Es of the watch body 1 (without increasing the size of the watch body 1).

[0065] Furthermore, the exterior case 7, which is the second component of this embodiment, is provided with a housing section 76 that houses the watch main body 1, and a second engagement section 77, which serves as a component-side locking section, is provided in the housing section 76 at a position corresponding to the first protrusion 17. Therefore, when attaching the exterior case 7 to the watch main body 1, the watch main body 1 can be easily positioned simply by accommodating it in the housing section 76, and the first protrusion 17 can also be locked with the second engagement section 77.

[0066] While the above describes an embodiment of the present invention, it goes without saying that the present invention is not limited to such an embodiment and can be modified in various ways without departing from the spirit of the present invention. For example, in this embodiment, the watch body 1 is generally rectangular in plan view, but the watch body 1 constituting the electronic watch 100, 200 of the present invention is not limited to a rectangular shape. For example, it may be generally circular or elliptical in plan view. Even in this case, it is preferable that at least the first protrusions are provided in opposing positions on the watch body 1. This allows the watch body 1 to be engaged with the first and second members in a balanced manner, at least at the position of the first protrusions, resulting in a configuration that is less likely to come off.

[0067] Furthermore, for example, in this embodiment, the engagement hole 33 provided in the bezel 3, which is the first component, is a through-hole into which the operating unit 14, which is the second protrusion, is inserted. However, the engagement hole is not limited to a through-hole. For example, it may be a notch that can hook onto a portion of the operating unit 14. In this case, the same fixing force as in the case of a through-hole cannot be expected. However, for example, if the shape covers the operating unit 14 from the front side (the front side of the watch, the upper side in FIG. 1), the operating unit 14 can be engaged from the front side and the first protrusion 17 can be engaged from the back side with the first engagement portion 37, thereby holding the watch body 1 from both the front and back, and preventing rattling and misalignment. Furthermore, compared to when the engagement hole 33 is a through-hole, when the engagement hole 33 is a notch, it is easier to attach and detach the bezel 3 to and from the watch body 1.

[0068] Furthermore, the watch body 1 does not have to be provided with second protrusions that protrude from the 3 o'clock and 9 o'clock sides of the watch. In other words, the watch body 1 may be configured without an operating unit 14 that protrudes outward. In this case, there is no need to provide an engagement hole 33 in the bezel 3. In this case, the bezel 3 is locked to the watch body 1 simply by the engagement between the first protrusion 17 and the first engagement portion 37. However, even in this case, when the band 5 is attached, the band 5 is positioned on the back side of the watch body 1, and the watch body 1 is sandwiched from the front and back by the bezel 3 and the band 5, preventing it from accidentally coming off.

[0069] Furthermore, for example, in this embodiment, the watch main body 1 is accommodated in the accommodation section 76 of the exterior case 7, which is the second member, with the 12 o'clock side of the watch facing up. However, if the shapes of all four sides of the watch main body 1 are substantially the same, as in this embodiment, the watch main body 1 may be accommodated in the accommodation section 76 in a different orientation (for example, upside down or sideways). For example, when the watch main body 1 is used in the exterior case 7, it may be accommodated in the accommodation section in the reverse orientation (with the 12 o'clock side of the watch facing down) so that the display can be viewed upside down, like a pocket watch. Note that when accommodated sideways, the second engagement section 77 is located between two operating units 14 provided on the same side. However, in this embodiment, if a gap similar to the gap between the protective protrusions 18 of the first protrusions 17 is provided between the two operating units 14, the second engagement section 77 can be engaged between the operating units 14 while avoiding the positions of the operating units 14.

[0070] In addition, in this embodiment, the case where the exterior case 7, which is the second member, has a substantially circular shape in a plan view is illustrated, but the shape of the exterior case 7 is not limited to the illustrated example and may be, for example, a substantially oval shape in a plan view or a substantially rectangular shape in a plan view. Furthermore, the exterior case 7 may have a shape that imitates the outer shapes of various characters, animals, etc.

[0071] Furthermore, the watch body 1 constituting the watches 100 and 200, which are electronic watches according to the present invention, broadly includes devices with time display functions, and can be widely applied to, for example, various electronic devices such as smart watches and sports watches, and wearable devices that acquire biometric information such as heart rate and blood flow information in addition to the time.

[0072] Although several embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. [Explanation of symbols]

[0073] 1 watch body, 3 bezel, 5 band, 35 opening (first opening), 36 protrusion (first protrusion), 51 first part (second flat part), 52 second part (first flat part), 53 step part, 100, 200 watch (electronic watch)

Claims

1. The watch body and an exterior member (bezel) that is attached to the watch body and can hold a band; Equipped with the exterior member has a first opening formed on one end side, the first opening has a first protrusion that protrudes into the first opening on a side facing a back surface of the band inserted into the first opening, the band has a first planar portion (thinner portion) on the rear surface and a second planar portion (thicker portion) protruding from the first planar portion on the rear surface, a boundary portion between the first plane portion and the second plane portion is a step portion, When the band is inserted into the first opening of the exterior member, the step portion and the first protrusion portion engage with each other, thereby holding the band on the exterior member. An electronic watch characterized by:

2. The first protrusion is angled so as to be inclined toward the insertion direction of the band.

2. The electronic watch according to claim 1, wherein the electronic watch is a clock.

3. the exterior member is elastically deformable, When the band is inserted into the first opening, the first protrusion tilts along the insertion direction of the band in accordance with elastic deformation of the exterior member, and the second flat surface portion of the band passes through the first opening, When the second flat portion passes through the first opening and the exterior member returns to its original state from the elastic deformation, the step portion and the first protrusion portion engage with each other.

2. The electronic watch according to claim 1, wherein the electronic watch is a clock.

4. The exterior member has a pair of extension portions that extend downward from the back surface of the watch body at positions facing each other across the watch body when attached to the watch body, the first opening is formed in one of the extension portions, The other of the extension portions has a second opening formed at a position opposite to the first opening.

2. The electronic watch according to claim 1, wherein the electronic watch is a clock.

5. The second opening has a second protrusion that protrudes into the second opening on a side facing the back surface of the band inserted into the second opening.

5. The electronic watch according to claim 4.

6. When the band inserted through the first opening is attached to an attachment target, the extension portion is pulled toward the attachment target and elastically deformed to bend, the first protrusion of the first opening is pressed against the step portion when the extension is bent.

5. The electronic watch according to claim 4.

7. A back cover is screwed onto the back side of the watch body, The screw for fixing the back cover is disposed on a path through which the band passes when the band is inserted into the first opening of the exterior member, and a protective protrusion is provided near the screw, protruding beyond the screw head.

2. The electronic watch according to claim 1, wherein the electronic watch is a clock.

8. An exterior member that is detachably attached to a watch body and can hold a band, A first extension portion is provided on one end side, which extends downward from the back surface of the timepiece body, the first extension portion has a first opening, the first opening has a first protrusion that protrudes into the first opening on a side facing a back surface of the band inserted into the first opening, the band has a first planar portion on the rear surface and a second planar portion protruding beyond the first planar portion on the rear surface; a boundary portion between the first plane portion and the second plane portion is a step portion, When the band is inserted into the first opening of the exterior member, the step portion and the first protrusion portion engage with each other, thereby holding the band on the exterior member. An exterior member characterized by:

9. When attached to the watch body, a second extension portion is provided at a position facing the first extension portion across the watch body, the second extension portion extending downward from the back surface of the watch body, The second extension portion has a second opening at a position opposite to the first opening. The exterior member according to claim 8 .

10. The second opening has a second protrusion that protrudes into the second opening on a side facing the back surface of the band inserted into the second opening. The exterior member according to claim 9 .

11. A band held by an exterior member attached to a watch body, The band has a first flat portion on a rear surface thereof and a second flat portion protruding beyond the first flat portion on the rear surface thereof, a boundary portion between the first plane portion and the second plane portion is a step portion, The watch can be disposed on the back side of the watch body by being inserted into a first opening formed on one end side of the exterior member, When the watch is placed on the back side of the timepiece body, the step portion engages with a first protrusion that protrudes into the first opening, thereby being held by the exterior member. A band that features

12. The band has a sweat escape portion in a central portion in a width direction on the back surface, the sweat escape portion being recessed in cross section relative to a peripheral edge portion, When the band is inserted into the first opening, the first protrusion fits into the sweat-relief shape.

12. The band according to claim 11.

Images