Bands and wrist devices

Abstract

To provide a band and a wrist device which are lightweight and have good design more easily.SOLUTION: A band 2 comprises a metallic hollow piece 3 produced by a metallic-powder-injecting molding method.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a band and a wrist instrument. [Background technology]

[0002] 2. Description of the Related Art Conventionally, bracelet-type bands having metal link members are known as bands for wristwatches and other wrist devices. For example, Patent Document 1 describes a technique in which bridge members are formed from sintered metal bodies produced using powder metallurgy, and these are connected with pins to form a band. A band equipped with metal bridge members has excellent design and can create a luxurious feel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-19401 Summary of the Invention [Problem to be solved by the invention]

[0004] However, since bands using metal bridge members are heavy, bands worn on the wrist are required to be lightweight. When forming bridge members of a band by powder metallurgy, it is difficult to form them into complex shapes, such as by removing appropriate weight, and there is a problem that the processing is time-consuming.

[0005] The present invention has been made in view of the above circumstances, and has as its object to more easily provide a band and wrist device that is lightweight and has excellent design. [Means for solving the problem]

[0006] In order to solve the above problems, the band according to the present invention comprises: Manufactured using metal powder injection molding, firstMetal components as parts; second a bridge member formed by a plurality of components, the plurality of components are engaged to define an internal cavity; The aforementioned first The parts are second It is characterized in that it is provided so as to cover the entire surface of the band on the front side of the component. [Effects of the Invention]

[0007] The present invention has the effect of more easily realizing a lightweight and aesthetically pleasing band and a wrist device including the same. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a watch as a wrist device equipped with a band according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view of the band of FIG. 1 as seen from the front side. [Figure 3] FIG. 3 is a side view of the band shown in FIG. 2. [Figure 4] 4 is a cross-sectional view of the band according to the present embodiment taken along line IV-IV shown in FIG. 2. FIG. [Figure 5] 3 is a cross-sectional view of the band in the present embodiment taken along line VV shown in FIG. 2. [Figure 6] FIG. 2 is an exploded perspective view of a bridge member that constitutes the band, as viewed from the front side. [Figure 7] FIG. 2 is an exploded perspective view of a bridge member that constitutes the band, as viewed from the rear side. DETAILED DESCRIPTION OF THE INVENTION

[0009] A preferred embodiment of a band and a wrist device including the band according to the present invention will be described below with reference to Figures 1 to 7. Note that, although the band will be described below as being a wristwatch (watch) band, the embodiments to which the present invention can be applied are not limited to this.

[0010] FIG. 1 is a perspective view of a wristwatch, which is a wrist device according to this embodiment. As shown in FIG. 1, in this embodiment, a wristwatch 100 comprises a watch body 1 as an electronic device, and a band 2 attached to this watch body 1.

[0011] The watch body 1 has a watch case 10 with an opening at least at the top (the viewing side of the watch). Inside the watch case 10, the display device of the wristwatch 100 and various electronic components for operating this display device (none of which are shown) are housed. A crystal member 11 made of a transparent material such as glass is attached to the opening of the watch case 10 so as to cover the opening. An operation button 12 consisting of a push button and a crown is provided on the side of the watch case 10. In addition, at both the upper and lower ends of the watch case 10 (the upper and lower ends in FIG. 1), that is, the end on the 12 o'clock side and the end on the 6 o'clock side of the watch, band attachment portions 15 to which the band 2 is attached are formed.

[0012] FIG. 2 is a plan view of the band in this embodiment as seen from the front side, and FIG. 3 is a side view of the band. As shown in FIGS. 2 and 3, in this embodiment, the band 2 is formed by connecting a plurality of bridge members 3 together. A convex portion 32 is formed on one side of each bridge member 3 in the extension direction of the band 2. A concave portion 34 corresponding to the convex portion 32 is formed on the opposite side of the convex portion 32 in the extension direction of the band 2. The concave portion 34 has a shape corresponding to the convex portion 32, and when the bridge members 3 are in a connected state, the convex portion 32 is received in the concave portion 34 of the adjacent bridge member 3.

[0013] 2 and 3, bridge member 3a is a bridge member located at the end of the attachment side that is attached to watch case 10 of watch body 1, and has a body attachment part 31 that matches the shape of band attachment part 15. Since the rest of the configuration is the same as the other bridge members 3, it will be described below as bridge member 3 without any special distinction.

[0014] In this embodiment, the individual link members 3 that make up the band 2 are metal members manufactured by metal injection molding (MIM). Metal injection molding (MIM) is a method of producing metal products by mixing raw material metal powder with a binder, injecting the mixture into a mold, and then degreasing and sintering the molded product at high temperature in a vacuum furnace. In this embodiment, it is assumed that SUS (stainless steel) or titanium powder is used as the metal powder. Note that the raw material metal powder is not limited to the above. Furthermore, the binder mixed with the metal powder is not particularly limited and may be selected as appropriate.

[0015] The bridge member 3 of this embodiment is molded using a metal powder injection molding method so as to have a hollow portion inside, as will be described later. It is desirable for the bridge member 3 to be as lightweight as possible while maintaining a certain level of strength. For this reason, it is preferable that the bridge member 3 has thick sections and hollowed-out thin sections appropriately arranged. In this regard, with the conventional method of forming bridge members for bands using powder metallurgy, it is difficult to mold them into complex shapes, such as by hollowing out the sections appropriately, and a cutting process is required, which makes the processing time-consuming. Furthermore, in the method of forming the bridge member from sheet metal, for example, the thickness of the plate is constant, so it is not possible to change the thickness for each portion. In contrast, when metal powder injection molding is used to form the bridge member 3, various shapes can be easily formed in a few steps, just like when molding resin. This allows thickness to be added to areas that require strength, and by removing as much weight as possible from other areas, cavities can be formed inside the bridge member 3, achieving both strength and weight reduction. The specific configuration will be described in detail below.

[0016] Fig. 4 is a cross-sectional view of the band taken along line IV-IV in Fig. 2. Fig. 5 is a cross-sectional view of the band taken along line VV in Fig. 2. The bridge member 3, which is a metal member in this embodiment, is formed by a plurality of component parts. 4 and 5, each bridge member 3 is composed of a first part 4 corresponding to the front surface of the band 2 and a second part 5 corresponding to the back surface of the band 2. In this embodiment, both the first part 4 and the second part 5 are formed using metal powder injection molding.

[0017] The metal powder used for the first component 4 and the second component 5 may be different. For example, the first component 4, which is placed on the surface side of the band, may be made of stainless steel, while the second component 5, which is placed on the side that comes into contact with the skin when the band 2 is worn, may be made of titanium or other material that is less likely to cause metal allergies. Also, by changing the surface treatment of the inner surfaces of the molds that mold the first component 4 and the second component 5, the roughness and texture of the surfaces of the first component 4 and the second component 5 may be made different.

[0018] FIG. 6 is an exploded perspective view of the bridge member as seen from the front side of the band, and FIG. 7 is an exploded perspective view of the bridge member as seen from the back side of the band. 6 and 7, the first component 4 has a main body portion 41 and outer portions 43 disposed on both sides of the main body portion 41 in the width direction of the band 2. The pair of outer portions 43 are disposed offset from the main body portion 41 to one side in the extension direction of the band 2. As a result, a part of the main body portion 41 forms a protruding portion 42 that protrudes from the outer portion 42, and a recessed portion 44 is formed between the main body portion 41 and the outer portion 43 on the opposite side of the protruding portion 42.

[0019] As shown in Figure 7, a first engagement portion 45 is formed on the back surface of protrusion 42 of main body 41 (the surface that will become the inner side when bridge member 3 is formed, the surface on the non-visible side of band 2), approximately in the center of the width direction of band 2. First engagement portion 45 is a block-shaped protruding portion on the back surface of protrusion 42. Inside first engagement portion 45, a through-hole 46 is formed that penetrates band 2 in the width direction. The inside of the main body 41, except for the first engaging portion 45, is formed as thin as possible without impairing strength. Ribs or the like may be formed in some parts to increase strength.

[0020] The outer portion 43 is formed in a frame shape with the inside being hollowed out. The free ends of the pair of outer portions 43 are formed with through holes 47 at corresponding positions in the width direction of the band 2 .

[0021] As shown in FIGS. 6 and 7, the second component 5 has a main body portion 51 and outer portions 53 disposed on both sides of the main body portion 51 in the width direction of the band 2. Similar to the first component 4, the pair of outer portions 53 are arranged offset from the main body portion 51 to one side in the extension direction of the band 2. As a result, a part of the main body portion 51 becomes a protruding portion 52 that protrudes from the outer portion 53, and a recessed portion 54 is formed between the main body portion 51 and the outer portion 53 on the opposite side of the protruding portion 52.

[0022] 6, a thick portion 55 extending in the width direction of the band 2 is formed on the back surface (the surface that will become the inner side when the bridge member 3 is formed) of the protruding portion 52 of the main body 51. A through hole 57 that penetrates the band 2 in the width direction is formed inside the thick portion 55. A second engaging portion 56 corresponding to the first engaging portion 45 of the first component 4 is formed in the thick portion 55 at approximately the center in the width direction of the band 2 . In this embodiment, the second engagement portion 56 is a notch portion having a shape corresponding to the first engagement portion 45, and the first engagement portion 45 of the first part 4 and the second engagement portion 56 of the second part 5 are adapted to be combined with each other. When the first engaging portion 45 and the second engaging portion 56 are combined, the through hole 46 and the through hole 57 are connected to form a convex portion 32 having a first through hole 35 formed therein and extending in the width direction of the band 2.

[0023] Furthermore, a hollow cylindrical portion 58 is provided on the back surface (inner surface) of the main body portion 51 of this embodiment. The cylindrical portion 58 positions the second component 5 relative to the first component 4 by being abutted against any of the side walls on the inside of the main body portion 41 of the first component 4. The shape, arrangement, etc. of the cylindrical portion 58 are not particularly limited. A solid columnar portion may be provided instead of the cylindrical portion 58. The back side (inside) of the main body 51, other than the thick-walled portion 55 and the cylindrical portion 58, is formed as thin as possible without impairing strength. Ribs or the like may be formed in some parts to increase strength.

[0024] The outer portion 53 has a shape corresponding to the shape of the outer portion 43 of the first component 4, and is adapted to be fitted inside the outer portion 43 which is formed in a frame shape. The free ends of the pair of outer portions 53 are formed with through holes 59 at corresponding positions in the width direction of the band 2 . The through hole 59 is provided at a position corresponding to the through hole 47 of the first part 4, and when the outer part 53 is fitted into the outer part 43, the through hole 59 and the through hole 47 are connected to each other, forming a recess 34 with a second through hole (through hole 47 and through hole 59) formed inside that extends in the width direction of the band 2.

[0025] As shown in FIG. 7, a plurality of grooves 60 are formed on the outer surface of the main body 51 of the second component 5 along the extending direction of the band 2. The outer surface of the main body 51 of the second component 5 is the part that comes into contact with the arm when the band 2 is worn on the arm. Grooves 60 are provided on the outer surface of the main body 51 to allow moisture such as sweat to escape, preventing moisture from building up between the band 2 and the arm. Additionally, providing grooves and recesses allows for weight reduction by the amount of weight removed.

[0026] In this embodiment, the first through-hole 35 is adapted to receive a connecting pin 7 as a connecting member. The first engaging portion 45 and the second engaging portion 56 are maintained in an assembled state by inserting the connecting pin 7 into the first through-hole 35. In this way, the bridge member 3 is formed. In this embodiment, in addition to the connecting pin 7, a C-ring 8 is inserted into the first through-hole 35. This prevents the connecting pin 7 from rattling or falling off.

[0027] In this embodiment, as described above, the protrusion 32 is fitted into and accepted in the recess 34 of the bridge member 3. The second through-hole of the recess 34 is formed at a position corresponding to the first through-hole 35 of the protrusion 32 in the accepted state where the protrusion 32 is accepted in the recess 34, and in the accepted state, the first through-hole 35 of the protrusion 32 and the second through-hole of the recess 34 communicate with each other. The connecting pin 7 can be inserted into the first through-hole 35 and the second through-hole, and the accepted state where the protrusion 32 is accepted in the recess 34 is maintained by inserting the connecting pin 7 into the first through-hole 35 and the second through-hole.

[0028] Next, the operation of the band 2 of this embodiment and the wristwatch 100 to which it is applied will be described.

[0029] In this embodiment, the bridge member 3 of the band 2 is formed by integrally using metal powder injection molding to form the first component 4 and the second component 5 that make up the bridge member 3. As a result, for example, the first engaging portion 45, the second engaging portion 56, the through holes 46, the through holes 57, the thick portion 55, the cylindrical portion 58, the groove portion 60, etc. are formed solely by metal powder injection molding without going through a cutting process or the like, by providing the corresponding shapes in a mold.

[0030] Once the first component 4 and the second component 5 are completed, the two components are combined. Specifically, the outer portion 53 of the second component 5 is fitted into the inside of the outer portion 43 of the first component 4. Furthermore, the first engaging portion 45 of the first component 4 is fitted into the second engaging portion 56 of the second component 5. Then, the connecting pin 7 is inserted into the first through-hole 35 via the C-ring 8. This maintains the combined state of the first component 4 and the second component 5, and the bridge member 3 is formed. The bridge member 3 configured in this manner has a hollow portion inside by appropriately removing the inside of the first part 4 and the second part 5.

[0031] When linking the bridge members 3 to form the band 2, the convex portions 32 of the first and second parts 4 and 5 in the combined state before the linking pin 7 is inserted are fitted into the concave portions 34 of the adjacent bridge members 3. In an accepted state in which the recess 34 accepts the protrusion 32 of the adjacent bridge member 3, the first through-hole 35 of the protrusion 32 communicates with the second through-hole of the recess 34. In this state, the connecting pin 7 is inserted through the first through-hole 35 and the second through-hole. This maintains the assembled state of the first part 4 and the second part 5, and also maintains the accepted state in which the protrusion 32 is accepted in the recess 34, thereby connecting the adjacent bridge members 3 to each other. Then, the band 2 is completed by connecting the piece members 3 to the length required for the band 2. Furthermore, the body attachment portion 31 of the link member 3a located at the end of the band 2 is attached to the band attachment portion 15 of the watch body 1. In this way, the wristwatch 100 equipped with the band 2 is completed.

[0032] The band 2 formed in this way is a band 2 to which metal bridge members 3 are connected, and has a luxurious appearance while being lightweight due to the hollow space inside. By attaching this band 2 to the watch body 1, which is an electronic device, a lightweight wristwatch with excellent design can be realized.

[0033] As described above, according to this embodiment, the band 2 has a hollow portion therein and is provided with the metal bridge member 3 manufactured by metal powder injection molding. This allows various complex shapes to be realized through simple processes, similar to those of resin molded products. This saves time and effort in processing, and allows for appropriate internal weight reduction to create hollow spaces inside the bridge member 3, resulting in a lightweight design while still providing the superior luxury feel of the metal band 2.

[0034] The metal bridge member 3 is formed by a plurality of components. In this embodiment, the plurality of components are a first component 4 corresponding to the front surface of the band 2 and a second component 5 corresponding to the back surface of the band 2. This allows for the components placed on the front and back sides of the band 2 to be made of different materials, or the surface treatment can be changed to create different textures, resulting in a wide variety of bands 2.

[0035] In addition, in this embodiment, a first engagement portion 45 is formed on the first component 4, and a second engagement portion 56 corresponding to the first engagement portion 45 is formed on the second component 5, and the first engagement portion 45 and the second engagement portion 56 are shaped to be combined with each other, and when combined, a convex portion 32 is formed with a first through hole 35 formed therein that extends in the width direction of the band 2. In this way, even when the two parts that make up the bridge member 3 have shapes that allow them to be combined with each other and a first through hole 35 that communicates with each other is provided therein, this can be achieved through a simple process using metal powder injection molding.

[0036] In addition, this embodiment further includes a connecting pin 7 that is inserted into the first through hole 35, and the first engagement portion 45 and the second engagement portion 56 are maintained in an assembled state by inserting the connecting pin 7 into the first through hole 35. In this way, the two parts can be easily combined with the connecting pin 7, and the bridge member 3 can be easily assembled.

[0037] In addition, in this embodiment, the band 2 is formed by connecting a plurality of metal bridge members 3, and a recess 34 corresponding to the protrusion 32 is formed on the opposite side of the protrusion 32 in the extension direction of the band 2, and when the bridge members 3 are connected, the protrusion 32 is received in the recess 34 of the adjacent bridge member 3. In this embodiment, the recess 34 has a second through hole (through hole 47 and through hole 59) extending in the width direction of the band 2 at a position corresponding to the first through hole 35 in the accepted state in which the protrusion 32 is accepted within the recess 34, and in the accepted state, the first through hole 35 and the second through hole are connected, the connecting pin 7 can be inserted into the first through hole 35 and the second through hole, and the accepted state is maintained by inserting the connecting pin 7 into the first through hole 35 and the second through hole. As a result, the assembly of the bridge members 3 and the connection of the bridge members 3 to each other can be completed simply by connecting them with the connecting pins 7. This reduces the number of parts and also reduces the number of assembly steps.

[0038] In this embodiment, the wristwatch 100 is constructed by connecting such a band to the watch body, which is an electronic device. This makes it possible to create a wristwatch 100 that has a luxurious appearance and a lightweight band.

[0039] Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to these embodiments and that various modifications are possible without departing from the spirit of the present invention.

[0040] For example, the example has been given in which the first part 4 and the second part 5 constituting the bridge member 3, which is a metal member, are both formed using metal powder injection molding, but the configuration of the bridge member 3 is not limited to this. The bridge member may be formed from multiple components, including metal components manufactured by metal powder injection molding. For example, either the first component 4 or the second component 5 may be a resin component formed from resin. By combining components made of different materials, a wider variety of bands 2 can be realized.

[0041] An example has been given in which a through hole 46 is formed in the first engaging portion 45 of the first part 4, a through hole 57 is formed in the second part 5, and when the first engaging portion and the second engaging portion are combined, a first through hole 35 extending in the width direction of the band is formed inside the convex part 32; however, the first through hole 35 may be formed inside the convex part 32 when the first part 4 and the second part 5 are combined, and the configuration is not limited to this. For example, a recess having a semicircular cross section may be formed in each of the first component 4 and the second component 5, so that when the two components are fitted together, the cross section of the through hole becomes circular.

[0042] Also, for example, it is sufficient that at least one of the multiple bridge members 3 that make up the band 2 has the configuration shown in this embodiment, and it is not necessary for all bridge members 3 to have the configuration shown in this embodiment. The band 2 only needs to include a portion of the metal bridge members, and not all of the bridge members 3 need to be formed using metal powder injection molding. For example, resin bridge members and the metal bridge members 3 shown in this embodiment may be arranged alternately. This allows for the realization of a band 2 with a rich design. In addition, by mixing in plastic parts, it is possible to further reduce the weight of the entire band 2. Furthermore, for example, among the bridge members that make up the band 2, metal bridge members without internal cavities may be placed in areas where force is likely to be applied when an impact is received, and bridge members 3 with internal cavities as shown in this embodiment may be placed in areas where weight reduction is desired, and bridge members with different configurations may be appropriately arranged.

[0043] When manufacturing the bridge member 3 (such as the first part 4 and second part 5 that constitute the bridge member 3) using metal powder injection molding, various shapes can be formed in the molded product by providing various shapes in the mold used for molding. In this embodiment, an example is given of forming the first engagement portion 45, the second engagement portion 56, the through hole 46, the through hole 57, the thick-walled portion 55, the cylindrical portion 58, the groove portion 60, etc. by metal powder injection molding, but the shapes that can be formed by metal powder injection molding are not limited to those exemplified here. For example, various logos, lot numbers, and other markings may be formed by metal powder injection molding. In this case, the bridge member 3 (the first part 4, the second part 5, and the like that constitute the bridge member 3) can be obtained with the logo or other markings engraved on it without a separate marking process.

[0044] In the present embodiment, the bridge member 3 is configured by a plurality of components (the first component 4 and the second component 5), but the configuration of the bridge member 3 is not limited to this. The bridge member may be a metal member integrally manufactured by metal powder injection molding so as to have a hollow portion therein.

[0045] Furthermore, in this embodiment, the band 2 is provided on the wristwatch 100, but the electronic devices to which the band 2 of the present invention can be applied are not limited to wrist devices such as the wristwatch 100. The band 2 of the present invention can be widely applied to any device that has a band. Furthermore, when band 2 is applied to a wrist device, the wrist device is not limited to a wristwatch, and can be applied to various devices such as various biological information measuring devices, pedometers, altimeters, and barometers.

[0046] 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. The inventions described in the claims originally attached to this application are as follows. The claim numbers described in the appendix are the same as those of the claims originally attached to this application. [Note] <Claim 1> A band having an internal cavity and comprising metal bridge members manufactured by metal powder injection molding. <Claim 2> 2. The band according to claim 1, wherein the metal bridge member is formed by a plurality of components. <Claim 3> a bridge member formed of a plurality of components, including a metal component manufactured by a metal powder injection molding method; The band is characterized in that the plurality of components are engaged to form a cavity therein. <Claim 4> 4. The band according to claim 2, wherein the plurality of components include a resin component made of resin. <Claim 5> 5. The band according to claim 2, wherein the plurality of components are a first component corresponding to the front surface of the band and a second component corresponding to the back surface of the band. <Claim 6> 6. The band according to claim 5, wherein the cavity is provided between the first part and the second part. <Claim 7> 7. The band according to claim 5 or 6, characterized in that a first engagement portion is formed on the first component, a second engagement portion corresponding to the first engagement portion is formed on the second component, the first engagement portion and the second engagement portion are shaped to be combined with each other, and when combined, a convex portion is formed with a first through hole formed therein that extends in the width direction of the band. <Claim 8> Further, a connecting member is inserted into the first through hole, 8. The band according to claim 7, wherein the first engaging portion and the second engaging portion are maintained in an assembled state by inserting the connecting member into the first through-hole. <Claim 9> The band is configured by connecting a plurality of the bridge members, and a recess corresponding to the protrusion is formed on the opposite side of the protrusion in the extending direction of the band. 9. The band according to claim 8, wherein the convex portions of the piece members are received in the concave portions of the adjacent piece members when the piece members are in a coupled state. <Claim 10> a second through hole extending in a width direction of the band is formed in the recess at a position corresponding to the first through hole when the protrusion is received in the recess, The band described in claim 9, characterized in that in the accepted state, the first through hole and the second through hole are connected, the connecting member can be inserted into the first through hole and the second through hole, and the accepted state is maintained by inserting the connecting member into the first through hole and the second through hole. <Claim 11> A band according to any one of claims 1 to 10; Electronic devices and A wristwatch comprising: [Explanation of symbols]

[0047] 1. Watch body (electronic device) 2 bands 3 piece parts 4 First part 5 Second part 7 connecting pin 100 Watches (wristwatches)

Claims

1. a bridge member formed of a plurality of components, including a metal component as a first component and a second component, both manufactured by metal powder injection molding; the plurality of components are engaged to define an internal cavity; The band is characterized in that the first component is provided so as to cover and conceal the entire surface of the second component on the front side of the band.

2. 2. The band according to claim 1, wherein the hollow portion is covered by the first component and the second component so as not to be visible from the outside.

3. 3. The band according to claim 1, wherein the second component is made of resin.

4. a second engaging portion is formed on the second component, and a first engaging portion corresponding to the second engaging portion is formed on the first component; The band according to any one of claims 1 to 3, wherein the first component has a thin-walled shape in a portion other than the first engaging portion.

5. a second engaging portion is formed on the second component, and a first engaging portion corresponding to the second engaging portion is formed on the first component; The band according to any one of claims 1 to 3, wherein the first component has a thickened shape at the first engaging portion.

6. a second engaging portion is formed on the second component, a first engaging portion corresponding to the second engaging portion is formed on the first component, the first engaging portion and the second engaging portion are shaped to be fitted together, and when fitted together, a convex portion is formed with a first through hole formed therein and extending in the width direction of the band; 4. The band according to claim 1, wherein the first engaging portion of the first component, in which the first through hole is provided, has a thick-walled shape along an axis of the first through hole.

7. Further, a connecting member is inserted into the first through hole, The band according to claim 6, wherein the first engaging portion and the second engaging portion are maintained in an assembled state by inserting the connecting member into the first through-hole.

8. The band is configured by connecting a plurality of the bridge members, and a recess corresponding to the protrusion is formed on the opposite side of the protrusion in the extending direction of the band.

8. The band according to claim 7, wherein the protrusions of the bridge members are received in the recesses of the adjacent bridge members when the bridge members are in a connected state.

9. a second through hole extending in a width direction of the band is formed in the recess at a position corresponding to the first through hole when the protrusion is received in the recess, The band described in claim 8, characterized in that in the accepted state, the first through hole and the second through hole are connected, the connecting member can be inserted into the first through hole and the second through hole, and the accepted state is maintained by inserting the connecting member into the first through hole and the second through hole.

10. The band according to claim 9, wherein the second through hole is provided in the first part in a portion that becomes a side surface of the band when the bridge member is connected, and the first part has a thick-walled shape along an axis of the second through hole.

11. The band according to any one of claims 7 to 10, characterized in that a C-ring member is inserted into the first through hole formed in the first engagement portion of the first component, and the connecting member is inserted through the C-ring member.

12. The band according to claim 11, characterized in that the diameter of the first through hole formed in the first engaging portion of the first component is larger than the diameter of the first through hole formed in the second engaging portion of the second component.

13. A band according to any one of claims 1 to 12; and an electronic device.

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