Arm-wearable device and timepiece

Abstract

To provide an arm-wearable device being a timepiece which is easily wearable and detachable and whose band length can be easily adjusted.SOLUTION: A timepiece 100 being an arm-wearable device includes: a timepiece main body 1 being a device main body; and a band 2 including a loop member 6 as an elastic member being a flexible portion, and a band main body 3 being a part that allows length adjustment by a method other than elasticity. The band 2 is provided so that length thereof being adjustable as a whole. As a result, attachment and detachment of the band and adjustment of the band length can be easily performed. Further, with the flexible loop member 6, the band 2 can naturally fit the arm when being worn.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a wrist-worn device and a watch. [Background technology]

[0002] Conventionally, there are known watches that have a band body that can stretch in the longitudinal direction as a band to be worn on the wrist (see, for example, Patent Document 1). This configuration makes it possible to easily put the watch on and take it off the wrist. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3088951 Summary of the Invention [Problem to be solved by the invention]

[0004] However, arm thickness varies greatly from person to person. Therefore, even if a band is stretchable, if one type of band is used to accommodate a wide range of arm sizes, the fit will vary from person to person, with some people feeling a sense of tightness, with others feeling a sense of tightness. Furthermore, wrist-worn devices such as watches may be worn not only directly on the arm, but also over clothing, depending on the situation. In these cases, simply stretching the band is not enough to accommodate these changes.

[0005] The present invention has been made in consideration of the above circumstances, and its object is to provide a wrist-worn device and a watch that can be easily attached and detached, and whose band length can be easily adjusted. [Means for solving the problem]

[0006] In order to solve the above problem, the arm-worn device of the present invention comprises a device body, a band including an expandable portion and a portion whose length can be adjusted by means other than the expansion and contraction, and is characterized in that the band as a whole is configured to be adjustable in length. [Effects of the Invention]

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

[0008] [Figure 1] 1 is a perspective view showing the appearance of a timepiece to which a band according to an embodiment of the present invention is attached. [Figure 2] FIG. 2 is an exploded perspective view showing the band according to the embodiment disassembled into individual parts. [Figure 3] FIG. 3 is a perspective view of a band in an assembled state of the parts shown in FIG. 2. [Figure 4] FIG. 2 is a perspective view showing the appearance of a clasp member of a band body that constitutes the band according to the present embodiment. [Figure 5] 5 is a plan view of the clasp member as seen from the arrow V in FIG. 4. [Figure 6] 6 is a plan view of the clasp member as seen from arrow VI in FIG. 4. [Figure 7] 7 is a cross-sectional view of the clasp member taken along line VII-VII in FIG. 5. [Figure 8] FIG. 2 is a schematic plan view of a connecting member that constitutes the band according to the embodiment. [Figure 9] FIG. 10 is a perspective view showing the appearance of a timepiece to which a band according to a modified example is attached. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of a wrist-worn device according to the present invention will be described with reference to Figures 1 to 8. In the following embodiment, the wrist-worn device is a timepiece (wristwatch) worn on the arm, such as the wrist. Hereinafter, the wrist-worn device will be simply referred to as a "timepiece." However, the embodiments to which the present invention can be applied are not limited to this.

[0010] [composition] As shown in FIG. 1, a watch 100, which is a wristwatch device, includes a device main body and a band 2 attached to the device main body. In this embodiment, the device main body is a watch main body 1. The watch main body 1 has a main body case 11 and a pair of band attachment portions 12 at opposing positions on the main body case 11. "Opposite positions" refer, for example, to the 12 o'clock end and the 6 o'clock end of an analog watch. In FIG. 1, the band attachment portion 12 provided at the 12 o'clock end is referred to as band attachment portion 12a, and the band attachment portion 12 provided at the 6 o'clock end is referred to as band attachment portion 12b. In this embodiment, band attachment portion 12a and band attachment portion 12b have the same shape and configuration. Note that when simply referring to "band attachment portion 12," this includes band attachment portions 12a and 12b.

[0011] The back side of the main case 11 is closed by a back cover member 13, and FIG. 1 is a perspective view of the timepiece 100 as viewed from the back cover member 13 side. Although not shown, operation components such as push buttons and a crown are provided on the side of the main case 11. The interior of the main case 11 also houses a module including a display unit (not shown). The timepiece 100 may be equipped with an analog display unit equipped with hands (not shown), or a digital display unit equipped with, for example, an LCD display unit. It may also be equipped with a hybrid display unit that combines both digital and analog formats.

[0012] The band 2 includes a stretchable portion and a portion whose length can be adjusted by a method other than stretching. Specifically, the band 2 includes a band main body 3, a connecting member 5, and a loop-shaped member 6, and as described below, the loop-shaped member 6 is the "stretchable portion." In addition, in this embodiment, the band main body 3 has a length-adjustable configuration at a clasp member 4, which will be described later, and functions as the "portion whose length can be adjusted by a method other than stretching." In this way, the band 2 is configured to be adjustable in length as a whole by including a stretchable portion and a portion whose length can be adjusted by a method other than stretching.

[0013] The band main body 3 includes a band member 31, a tip member 32, a clasp member 4, a keeper ring 34, etc. The band member 31 is formed in a long, strip-like shape using, for example, nylon fiber. The length of the band member 31 is not particularly limited, but is preferably equal to or longer than the circumference of an average adult's arm (particularly the wrist). One end (base end) of the band member 31 is fixed to one side of the tip member 32 (a band member fixing portion 321, described below). The band member 31 is fixed, for example, by wrapping it around the tip member 32 and sewing the end. The method of fixing the band member 31 to the tip member 32 is not particularly limited. It may be fixed using an adhesive or screws, etc. As shown in FIG. 1 , the other end of the band member 31 is folded back at the clasp member 4, with the free end facing the watch body 1. The free end of the band member 31 folded back at the clasp member 4 is inserted into the keeper ring 34. This maintains the state in which the free end side of the band member 31 is overlapped with the base end side of the band member 31 .

[0014] One side of the tip can member 32 forms a band member fixing portion 321 to which the band member 31 is attached, and the other side forms a main body attachment portion 322 that is attached to the band attachment portion 12. In the example shown in FIG. 1, the main body attachment portion 322 of the tip can member 32 is attached to the band attachment portion 12b at the 6 o'clock position of the watch body 1. The band attachment portion 12b has, for example, a recess that receives the main body attachment portion 322, and the main body attachment portion 322 is a protrusion that fits into the recess. The main body attachment portion 322 is formed with a through-hole 323 that penetrates in the band width direction W (see FIG. 3, etc.). Furthermore, a hole (not shown) that communicates with this through-hole 323 is formed at a corresponding position in the recess of the band attachment portion 12b. For example, the tip can member 32 is connected to the band attachment portion 12 and ultimately to the watch body 1 by inserting an axis member (not shown) through the through-hole 323 in the protrusion of the main body attachment portion 322 and the hole in the recess. The tip member 32 may be attached to either of the pair of band attachment parts 12. Depending on the user's convenience, the tip member 32 may be attached to the band attachment part 12a.

[0015] As shown in FIGS. 4 to 7 , the clasp member 4 includes a frame member 41, an attachment portion 42, a locking protrusion 43, a first bar member 44, and a second bar member 45. The frame member 41 forms the outer frame of the clasp member 4 and is a frame body formed so that its inner width is greater than the width of the band member 31. The attachment portion 42 is provided on one side of the frame member 41 in the band length direction L, at the end farther from the tip member 32. One end of a loop-shaped member 6 (an elastic member), which will be described later, is connected to the attachment portion 42. For example, as shown in FIG. 6 , the attachment portion 42 has a notch 421 formed therein into which the loop-shaped member 6 can be fitted and locked. Once the loop-shaped member 6 is fitted into the notch 421, it is difficult for it to come off. Note that the configuration for connecting the loop-shaped member 6 to the attachment portion 42 is not particularly limited as long as it makes it difficult for the loop-shaped member 6 to come off. It is preferable that the loop member 6 be detachable without using a special tool so that the user can replace the loop member 6.

[0016] Furthermore, the locking protrusion 43 is the portion that locks the other end of the loop member 6 (the end that is not connected to the attachment portion 42) when the band 2 (the watch 100 that includes the band 2) is attached. In this embodiment, as shown in FIG. 1, the loop member 6 is attached to a connecting member 5, which will be described later, with one end connected to the attachment portion 42 and folded back at the connecting member 5, and the other end locked to the locking protrusion 43. The locking protrusion 43 is preferably hook-shaped, as shown in FIGS. 4 and 7, so that the loop member 6 can be easily hooked.

[0017] The first bar member 44 and the second bar member 45 are provided inside the frame member 41, approximately perpendicular to the longitudinal direction L of the band member 31. The first bar member 44 and the second bar member 45 are arranged in a ladder shape, approximately parallel to the longitudinal direction L of the band. As shown in FIG. 7 , the first bar member 44 and the second bar member 45 are preferably arranged offset in the thickness direction H of the band 2. That is, the first bar member 44 provided closer to the locking protrusion 43 is arranged at a higher position in the thickness direction H, and the second bar member 45 provided closer to the mounting portion 42 is arranged at a lower position in the thickness direction H. The arrangement and shape of the first bar member 44 and the second bar member 45 are not limited to the illustrated example. The first bar member 44 and the second bar member 45 are portions around which the band member 31 is wound. Arranging the first bar member 44 and the second bar member 45 with a step makes it easier to wind the band member 31 around them. As will be described later, in the embodiment, by winding the band member 31 around the first bar member 44 and the second bar member 45, the length of the band main body 3 can be adjusted.

[0018] The connecting member 5 is attached to the band attachment portion on the opposite side of the band main body 3 to the side to which the tip member 32 is attached. In the example shown in FIG. 1, the connecting member 5 is attached to the band attachment portion 12a at the 12 o'clock position of the watch main body 1. As shown in FIG. 8 and other figures, one side of the connecting member 5 forms a main body attachment portion 51 that is attached to the band attachment portion 12 of the watch main body 1, and the other side forms a member attachment portion 52 to which the loop-shaped member 6 is attached. The band attachment portion 12a has, for example, a recess that receives the main body attachment portion 51, and the main body attachment portion 51 fits into the recess. A through-hole 511 is formed in the main body attachment portion 51 in the band width direction W (see FIGS. 3, 8, etc.). Furthermore, a hole (not shown) that communicates with the through-hole 511 is formed in the recess of the band attachment portion 12a at a position corresponding to the through-hole 511. For example, the connecting member 5 is connected to the band attachment portion 12a and ultimately to the timepiece body 1 by inserting an axial member (not shown) through the through-hole 511 of the body attachment portion 51 and the hole in the band attachment portion 12a.

[0019] As shown in FIG. 8 , the member attachment portion 52 has a slit 521 through which the loop-shaped member 6 can be inserted. Loop hooks 522 are formed at both ends of the slit 521 in the band width direction W as locking portions that can lock the loop-shaped member 6. The loop hooks 522 are cutouts shaped according to the cross-sectional shape of the loop-shaped member 6, and in this embodiment, are substantially circular. Locking the loop-shaped member 6 to the loop hooks 522 at both ends of the slit 521 prevents twisting or misalignment of the loop-shaped member 6 within the slit 521. The loop-shaped member 6 is connected to the band attachment portion 12a via the connecting member 5 by being hooked onto the loop hooks 522. The configuration for connecting the loop-shaped member 6 to the connecting member 5 is not particularly limited as long as it prevents the loop-shaped member 6 from coming off. Preferably, the loop-shaped member 6 can be attached and detached without using a special tool, so that the user can easily replace the loop-shaped member 6.

[0020] The loop-shaped member 6 is a flexible, stretchable member that is attached to the connecting member 5 and has at least one end connected to the clasp member 4. Specifically, the loop-shaped member 6 has a loop main body 61 that is made of an endless material, for example, a resin such as rubber. The loop-shaped member 6 is inserted into a slit 521 in the connecting member 5, and the loop main body 61 is fitted into each of the loop hooks 522 provided on both ends of the slit 521. Each of the loop hooks 522 is formed to have a diameter slightly larger than the diameter of the cross section of the loop-shaped member 6 (loop main body 61 of the loop-shaped member 6). As a result, the loop-shaped member 6 (loop main body 61 of the loop-shaped member 6) is slidable within the loop hook portion 522. Also, as shown in FIG. 3 etc., one end of the loop-shaped member 6 is fitted into the aforementioned notch portion 421 and thereby engaged with the attachment portion 42 of the clasp member 4. Furthermore, when the band is attached, the loop-shaped member 6 is folded back by the connecting member, and the other end of the loop-shaped member 6 is engaged with and engaged with the engaging protrusion 43 of the clasp member 4. A pull member 62 is provided on the side of the loop-shaped member 6 that is engaged with the engaging protrusion 43. The pull member 62 is a tag made of various types of fabric or the like. A logo or the like may be provided on the pull member 62. It should be noted that it is not essential that the loop-shaped member 6 is provided with the pull member 62.

[0021] [Effect] Next, the operation of the watch 100, which is a wrist-worn device according to this embodiment, and how to wear the watch 100 (particularly the band 2 of the watch 100) will be described. In this embodiment, when attaching the band 2 to the main case 11 of the watch 100, the main body attachment portion 51 of the connecting member 5 is attached to the band attachment portion 12a, and the main body attachment portion 322 of the band main body 3 is attached to the band attachment portion 12b. At this time, the band main body 3 is assembled as shown in FIG. 3 before being attached to the band attachment portion 12b. That is, one end of the band member 31 is fixed to the band member fixing portion 321 of the tip member 32 by sewing or the like. The idle ring 34 is also inserted into the band member 31. The other end (free end) of the band member 31 is then inserted into the frame member 41 from the side where the locking protrusion 43 of the clasp member 4 is provided. The band member 31 is passed over the first bar member 44 from below the clasp member 4, passed over the second bar member 45, folded back at the second bar member 45, and passed under the second bar member 45. After that, the tip of the band member 31 is pulled out toward the watch body 1, passing it over the first bar member 44. By adjusting the length of this pullout, the overall length of the band body 3 can be adjusted. The tip of the pulled-out band member 31 is inserted into the circumferential ring 34. This maintains the state in which the free end side of the band member 31 overlaps the base end side of the band member 31, and the band body 3 is in an assembled state.

[0022] Next, the loop-shaped member 6 is attached to the connecting member 5 attached to the band attachment portion 12 of the watch body 1. Specifically, the loop-shaped member 6 is inserted into the slit 521 of the member attachment portion 52 of the connecting member 5. At this time, the loop-shaped member 6 is inserted into the slit 521 so that the side with the pull tab member 62 is located at the 12 o'clock side of the watch and the opposite side is located at the 6 o'clock side of the watch to which the band body 3 is attached. The loop-shaped member 6 is then slidably engaged with the loop hook portions 522 formed at both ends of the slit 521. Furthermore, one end side (the side without the pull tab member 62) of the loop-shaped member 6 (loop body 61 of the loop-shaped member 6) is engaged with the attachment portion 42 of the clasp member 4. This completes the attachment of the band 2 to the watch body 1.

[0023] Next, when wearing the watch 100, which is a wrist-worn device, on the user's arm (wrist, etc.), the arm is passed through the loop formed by the watch body 1 and the band 2. Then, the loop member 6, one end of which is fastened to the attachment portion 42 of the clasp member 4, is folded back using the connecting member 5, and the other end of the loop member 6 (the side with the pull tab member 62) is pulled toward the clasp member 4 of the band body 3. The other end of the loop member 6 is then hooked onto the locking projection 43 of the clasp member 4 and fastened. The user adjusts the length of the band body 3 as needed depending on how the watch 100 fits on the arm (wrist, etc.). That is, if the watch 100 fits too loosely or too tightly, the free end of the band member 31 is removed from the circumferential loop 34, and the amount (length) of the band member 31 wound around the first bar member 44 and second bar member 45 of the clasp member 4 is increased or decreased to adjust the reference length of the band body 3. Once the desired length has been adjusted in this way, the free end of the band member 31 is passed through the free ring 34 again and locked so that the desired length is maintained. This completes the wearing of the timepiece 100 on the wrist.

[0024] When removing the watch 100 from the wrist, the band 2 can be easily removed by simply disengaging the pull tab 62 side of the loop member 6 from the locking projection 43 of the clasp member 4. The band 2 of this embodiment maintains the same wearing comfort as long as the length of the band body 3 is not changed. For this reason, there is no need to adjust the band length each time the watch 100 is put on or taken off.

[0025] [effect] As described above, the watch 100 according to this embodiment is a wrist-worn device including a band 2 attached to a device main body 1 having a pair of opposing band attachment sections 12a, 12b. The band 2 includes a band main body 3 attached to one of the band attachment sections 12 and having a clasp member 4 on its free end, a connecting member 5 attached to the other band attachment section 12, and a flexible loop-shaped member 6 attached to the connecting member 5 and having at least one end connected to the clasp member 4. The band main body 3 has a length-adjustable clasp member. This allows for easy adjustment of the band length at the band main body 3. Furthermore, once the length of the band main body 3 has been adjusted, the same fit is maintained even when the watch 100 is put on or taken off. Furthermore, the inclusion of a flexible, stretchable, and resilient loop-shaped member 6 made of rubber or the like in a portion of the band allows the band 2 to naturally conform to the wrist when worn.

[0026] Furthermore, the band main body 3 in this embodiment has a belt-shaped band member 31, and the clasp member 4 has bar members (first bar member 44, second bar member 45) that are perpendicular to the longitudinal direction of the band member 31, and the length of the band main body 3 can be adjusted by winding the band member 31 around the bar members 44, 45. This makes it possible to easily adjust the length of the band main body 3 with a simple configuration.

[0027] Furthermore, the connecting member 5 in this embodiment has a loop hook portion 522, and the loop member 6 is connected to the band attachment portion 12 via the connecting member 5 by being hooked onto the loop hook portion 522. In this way, the loop member 6 is locked to the connecting member 5 simply by being hooked onto the loop hook portion 522. Therefore, it is possible to remove the loop member 6 from the connecting member 5 by pulling it strongly without using a special tool. This allows the user to easily replace the loop member 6 according to their preference.

[0028] Furthermore, the clasp member 4 in this embodiment has an attachment portion 42 to which one end of the loop-shaped member 6 is connected, and a locking projection 43 to which the other end of the loop-shaped member 6 folded back by the connecting member 5 is locked when worn. This allows the band 2 to be easily attached and detached by simply attaching and detaching the loop-shaped member 6 to and from the locking projection 43.

[0029] Furthermore, the loop-shaped member 6 in the embodiment has a pull tab 62 at the portion that engages with the locking projection 43 of the clasp member 4. As a result, when attaching or detaching the loop-shaped member 6 to or from the locking projection 43, the work can be done by holding the pull tab 62 and pulling the loop-shaped member 6. This makes it easier to apply force to the loop-shaped member 6 and to attach or detach it, even if the loop-shaped member 6 is tightly fitted into the locking projection 43. Furthermore, since the pull tab 62, which is a cloth tag or the like, is provided at the portion that engages with the locking projection 43, the loop-shaped member 6 is resistant to abrasion and the like even when repeatedly attached or detached, and the durability of the loop-shaped member 6 is improved. Furthermore, when the user wears the watch 100 on the left arm, the pull tab member 62 of the loop-shaped member 6 (stretchable member) can be pulled toward the body with the right hand, so it is desirable that the loop-shaped member 6 (stretchable member) be located on the 12 o'clock side of the watch 100.

[0030] Furthermore, when the configuration of the above embodiment is applied to a watch, it can be easily attached and detached and can be adapted to arms (wrists) of various thicknesses. This allows one watch to be worn by both men and women, for example. Also, one type of band 2 can be used in a variety of situations, such as when worn directly on the wrist or over a jacket.

[0031] While the above describes the preferred embodiments of the present invention, it goes without saying that the present invention is not limited to these embodiments and can be modified in various ways without departing from the spirit of the present invention. For example, the band member 31 constituting the band main body 3 is not limited to being made of a cloth tape. The band member 31 may be made of any material that can be wrapped around the bar members (first bar member 44, second bar member 45) of the clasp member 4 and folded back. For example, it may be made of leather or various synthetic resins such as silicone or urethane. Furthermore, the loop main body 61 of the loop-shaped member 6 is not limited to rubber or other resins as long as it is at least flexible. For example, it may be made of a leather cord or a flexible chain-shaped metal. Furthermore, in the above-described preferred embodiments, it is sufficient to have a watch main body 1 (device main body), a band main body 3 provided on one side of the watch main body 1 and capable of adjusting the overlap length in the longitudinal direction, and an elastic member (loop-shaped member 6) provided on the other side of the watch main body 1. However, the elastic member (loop-shaped member 6) may be made of an elastic member at least partially, rather than entirely.

[0032] [Variation 1] The elastic member does not have to have a loop shape 6 as a whole like the loop-shaped member 6. For example, the elastic member may be a single rubber string with one end and the other end each having a ring shape. In this case, the ring-shaped portion at one end is attached by hooking onto the shaft of the T-shaped mounting portion 42 of the clasp member 4, and the ring-shaped portion at the other end of the string is hooked onto the locking protrusion 43 of the clasp member 4 to lock. [Variation 2] Furthermore, the band main body 3 does not have to have a structure in which the band members 31 are folded back at the clasp member 4. It is sufficient that at least the length of overlap of the band members 31 of the band main body 3 in the longitudinal direction is adjustable. For example, the watch may have two band members 31, and the length of the overlapping area between the two band members 31 in the longitudinal direction can be adjusted as needed. Specifically, the two band members 31 include a first band member having a tip member 32 attached to one end thereof, which is connected to the band attachment portion 12b of the watch body 1, and a second band member having an area where at least a portion of the longitudinal direction overlaps with the first band member. In this case, at least a portion of both the first band member and the second band member is made of hook-and-loop fastener (e.g., Velcro (registered trademark)). This allows the first band member and the second band member to be easily attached to each other with a single touch by simply pressing them together at any desired position, and they can be attached and detached repeatedly, making them reusable. [Variation 3] Furthermore, although the elastic member (loop-shaped member 6) is attached to the connecting member 5 and at least one end thereof is connected to the clasp member 4, this configuration is not limited thereto. The elastic member may be directly fixed to the second band member without the use of the connecting member 5, for example, by having one end thereof sewn to the second band member in advance. In this case, the longitudinal length of the band can be adjusted by fastening the first band member and the second band member to which the elastic member is connected with a hook-and-loop fastener or the like.

[0033] [Variation 4] Referring to Figure 9, we will explain one embodiment of a wrist-worn device according to Variation 4. In Variation 4, as in the above-described embodiment, the wrist-worn device (referred to as watch 200 in Figure 9) includes a watch body 1 (device body) with a main case 11, a band body 7 provided on one side of the watch body 1 and adjustable in length of overlap in the longitudinal direction, and a band 20 including an expandable member (loop-shaped member 8) provided on the other side of the watch body 1. However, in Variation 4, the configuration of the band body 7 differs from that of the above-described embodiment. In the wrist-worn device (watch 200) according to Variation 4, the band body 7 does not include a clasp member or a keeper ring. Instead of the locking protrusions of the above-described embodiment, a fixing member 40 for fixing the loop-shaped member 8 may be provided on the surface side of the band member 71 of the band body 7.

[0034] The fixing member 40 is, for example, a hook as shown in FIG. 9 . The fixing member 40 is not limited to a hook and may be a button or the like. A plurality of fixing members 40 (hooks, buttons, etc.) are provided at predetermined intervals along the longitudinal direction of the band member 71. The user can adjust the length and tightness of the band 20 to the user's preference by hooking the loop member 8 onto one of the plurality of fixing members 40 (hooks, buttons, etc.). The fixing member is not limited to a hook or button. For example, the band member may be formed of a hook-and-loop fastener. In this case, for example, the band member may have a plurality of protruding members (one end of which is attached to the band body) along the longitudinal direction of the band body for attaching the loop member 8, and the loop member is fixed by sandwiching the other end (tip) of the protruding member and the band body. The number of protruding members provided on the band body is not limited to a plurality. There may be only one protruding member provided with a predetermined length along the longitudinal direction of the band body. In this case too, since it is a hook-and-loop fastener, the loop-shaped member can be fixed at any location using just one fastener.

[0035] Furthermore, the wrist-worn device to which the band can be attached is not limited to a watch, but can also be applied to electronic devices such as various smart watches and sports watches, as well as various electronic devices that acquire biological information such as heart rate and blood flow in addition to time.

[0036] 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 may be formed by combining elements of each embodiment, and includes the scope of the invention described in the claims and its equivalents. [Explanation of symbols]

[0037] 1 watch body (device body), 2 band, 3 band body, 4 clasp member, 5 connecting member, 6 loop-shaped member (expandable member), 12a, 12b band attachment portion, 100 watch (wrist-worn device)

Claims

1. The device body, A band including an elastic portion and a portion whose length can be adjusted by a method other than the elastic portion; Equipped with The wrist-worn device is characterized in that the band is provided so that its overall length can be adjusted.

2. the elastic portion is an elastic member provided on one side of the device body, The portion whose length can be adjusted by a method other than stretching is a band body provided on the other side of the device body that is different from the one side.

2. The wrist-worn device according to claim 1.

3. The elastic member has a restoring force, The band body has lower elasticity than the elastic member.

3. The wrist-worn device according to claim 2.

4. The device body has a pair of band attachment portions at opposing positions, The band body includes a tip member, The tip ring member is attached to the band attachment portion on the one side of the device body.

3. The wrist-worn device according to claim 2.

5. The device body has a pair of band attachment portions at opposing positions, The band body is attached to the band attachment portion on the other side of the device body and has a clasp member on a free end side.

3. The wrist-worn device according to claim 2.

6. Further comprising a connecting member, The elastic member is attached to the connecting member attached to the other band attachment portion, and at least one end side is connected to the clasp member, The length of the band body can be adjusted by the clasp member.

6. The wrist-worn device according to claim 5.

7. The band body has a belt-shaped band member, The band body has a laminated region in which at least a portion of the band member in the longitudinal direction overlaps, and is provided so as to overlap in the longitudinal direction.

3. The wrist-worn device according to claim 2.

8. The band body has a belt-shaped band member, The clasp member includes a bar member perpendicular to the longitudinal direction of the band member, and the length of the band body is adjusted by winding the band member around the bar member.

6. The wrist-worn device according to claim 5.

9. The elastic member is a loop-shaped member, The connecting member has a loop hook portion, The loop-shaped member is hooked onto the loop hook portion and thereby connected to the band attachment portion via the connecting member.

7. The wrist-worn device according to claim 6.

10. The clasp member has an attachment portion to which one end of the elastic member is connected, and a locking protrusion to which the other end of the elastic member folded back by the connecting member is locked when the clasp is attached.

7. The wrist-worn device according to claim 6.

11. The elastic member has a pull tab at a portion that is engaged with the engaging projection of the clasp member.

11. The wrist-worn device according to claim 10.

12. The watch body and A band attached to the watch body includes an elastic portion and a portion whose length can be adjusted by a method other than the elastic portion; Equipped with The band is provided so that its overall length can be adjusted. A watch characterized by

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