JP2007143812A - Mounting type device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new mounting type electronic device and a structure of a wrist watch which can be prevented from falling off from a mounting object and can improve mounting property. <P>SOLUTION: The mounting type device is constituted in the state of a ring where a belt-like main body 11 is curved and opened partially. The device has a flexible belt 12 which is connected to one end 11e of the main body, which can close the opening part 11a of the main body by curving, and which has a length for overlapping the distal end part of it to the other end of the main body or a part at the tip of it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wearable device, and more particularly to a structure of a device having a bangle-like body shape that is suitable when configured as a wristwatch.

  In general, wrist-worn portable devices (electronic devices) such as wristwatches and divers' computers include a main body having a display unit and a band unit connected to the main body. The band portion is made of metal, leather, or the like, and is configured to hold the main body on the arm.

  On the other hand, a wristband-shaped wristwatch concept that has a case structure that is curved along the arm and has an integrated main body and band has been announced. Such a structure allows a design that is significantly different from a conventional wristwatch with a main body and a band, and is not subject to restrictions on the main body dimensions as in the past, thus ensuring a very large display area. It is groundbreaking in that it can.

  For example, the following Non-Patent Document 1 discloses a wristwatch that is configured in an annular shape in which a band-shaped main body is curved and partially opened.

Further, in Non-Patent Document 2 below, as shown in FIG. 15, the base end 1 a of the main body 1 and the base end 2 a of the connecting member 2 are rotatably connected by a hinge structure, and the main body 1 A wristwatch is disclosed in which a predetermined fitting structure is provided on the distal end portion 1b of the connecting member 2 and the distal end portion 2a of the connecting member 2 so that they can be engaged with each other, and the connecting member 2 is closed to form an annular shape as a whole. Yes.
Seiko Watch Co., Ltd. “Innovation of wristwatch display technology Developed future watch using electronic ink technology” [online] March 2005, Internet [searched on November 8, 2005] <URL: http: // www.seiko-watch.co.jp/press/baselworld/prb_2005_04.html> Watch.com Watch Direct Shop "ck Calvin Klein Watches Flash" [online] Internet [Searched on November 8, 2005] <URL: http: //www.udedokei.com/ck/ck_flash.html>

  However, the wristband-shaped wrist watch described above does not have a band part that wraps around the arm, and the part corresponding to the band is formed integrally with the main body, so that the attachment / detachment characteristics to the arm, the feeling of wearing, etc. There is a problem that there is a difficulty in wearability.

  For example, in the wristwatch disclosed in Non-Patent Document 1, the belt-shaped main body is formed in an annular shape that is curved and partially opened, so that it is worn when the opening width of the opening is larger than the thickness of the arm. However, there is a problem that the wristwatch is easily detached from the arm in a worn state, and when the opening width is smaller than the thickness of the arm, it becomes difficult to wear or cannot be worn. In addition, if the inner diameter of the main body does not match the thickness of the arm, there is a problem that the wristwatch is loose and the wearing feeling deteriorates.

  On the other hand, in the wristwatch disclosed in Non-Patent Document 2, the attachment and detachment characteristics are improved by configuring the main body 1 and the connecting member 2 to be openable and closable, but the fitting structure of the tip portions 1a and 2a is complicated. In addition, since the inner diameter of the wristwatch is determined by the fitting structure of the main body 1 and the connecting member 2, if the inner diameter does not match the thickness of the arm, there is a problem that the wristwatch becomes loose and the wearing feeling is deteriorated. . In addition, since the shape is restricted by the opening and closing structure of the main body 1 and the connecting member 2, there is a problem that the appearance is inferior to that of a handcuff, for example, and the design is poor.

  Therefore, the present invention solves the above-mentioned problems, and the problem is that a novel wearable electronic device and wristwatch that can prevent the dropout from the wearing object at the time of wearing and can improve wearability. To provide a structure.

  In view of such a situation, the wearable device of the present invention is a wearable device configured in an annular shape in which a band-shaped main body is curved and partially opened, and is connected to one end of the main body, The flexible belt has a length capable of closing the opening of the main body by being bent, and having a tip end portion which can be overlapped with the other end portion of the main body or a portion ahead of the main body. It is characterized by that.

  According to this invention, the opening of the main body can be closed with the flexible belt by curving the flexible belt and inserting the tip end portion into the inside of the other end of the main body. Even when the width is sufficiently secured, it is possible to suppress the main body from falling off the mounting target (the part to which the main body such as an arm is to be mounted). In addition, by inserting the flexible belt into the inside of the main body, the flexible belt is interposed at least at a part between the main body and the mounting target, so that the backlash of the main body can be suppressed. It becomes possible to improve the wearing feeling.

  In the present invention, when the flexible belt is bent and the tip portion is disposed on the inner surface of the other end portion of the main body or a portion at the tip of the flexible belt, the tip portion is self-supporting. It is preferably configured to be held on the inner surface of the end portion or the portion at the tip thereof. According to this, since the front end portion of the flexible belt is configured to be autonomously held on the inner surface of the other end portion of the main body or a portion ahead of the other end portion, the opening portion of the main body can be further reduced. Since it can close reliably, it can suppress more reliably that a main body falls out from mounting | wearing object.

  In this invention, it is preferable that the said base end part of the said flexible belt is arrange | positioned on the inner surface of said one edge part. According to this, since the proximal end portion of the flexible belt is disposed on the inner surface of one end portion of the main body, at least the proximal end portion of the flexible belt is interposed between the main body and the mounting target. Therefore, even when the opening width of the main body is formed large enough not to interfere with the mounting of the mounting target, the backlash between the main body and the mounting target during mounting can be suppressed. In particular, when the distal end portion of the flexible belt is disposed on the inner surface of the other end portion, the flexible belt is interposed between the mounting target and both ends of the opening of the main body. Therefore, it is possible to further reduce the backlash.

  In the present invention, the flexible belt is preferably detachably connected to the one end. According to this, since the flexible belt is configured to be detachable with respect to one end, when the flexible belt is unnecessary, the flexible belt is removed and only the main body is used. Can do.

  In the present invention, the flexible belt has a holding ring portion that is provided at the base end portion and holds the one end portion in a state of being inserted, and a belt-like portion that extends from the holding ring portion toward the distal end side. It is preferable. According to this configuration, it is possible to configure a flexible belt that can be easily attached to and detached from the main body in spite of a simple structure. In addition, since it is not necessary to provide any connection structure for the flexible belt at the end of the main body, the degree of freedom in designing the main body can be increased, and the main body can be separated by removing the flexible belt. It is possible to prevent unnatural appearance from occurring even when used in the above.

  In the present invention, the flexible belt further includes a projecting piece provided at an inner portion of an end portion of the holding ring portion opposite to the belt-like portion so as to protrude in the insertion direction of the holding ring portion. It is preferable to have. By providing this projecting piece, when the holding ring is attached to one end of the main body, the projecting piece comes into contact with the inner surface of the main body. The mounting position of the ring part can be positioned, and the projecting piece is deformed inward by the curved inner surface of the main body as the holding ring part is deeply attached, and the inner part of the holding ring part is pulled inward, so The holding force of the flexible belt with respect to the main body by the ring portion can be increased.

  In this invention, it is preferable that the said one edge part is comprised flatly seeing in the extension direction of the said main body. According to this, even if the main body is entirely curved and is configured to have an annular shape with a part of the opening, the flexible belt can be easily formed by flattening one end. It becomes possible to attach detachably. In particular, when the flexible belt is configured to be detachable from the main body by inserting one end into the retaining ring, the one end is configured flat, so The detachability of the retaining ring portion of the flexible belt is greatly facilitated.

  In the present invention, it is preferable that an engagement structure configured to be detachable from each other is provided on the other end of the main body and the tip portion of the flexible belt. As a result, it is possible to further reliably prevent the main body from being detached from the mounting target by the flexible belt. Examples of the engagement structure include a structure including a button and a slit, a hook structure, and a hook-and-loop fastener.

  The wearable device of the present invention may be an electronic device in which an electronic circuit is built in the main body, and may be a wristwatch in which time measuring means is built in the main body. Of course, an electronic timepiece having both an electronic circuit and a clock means may be used. Furthermore, examples of other electronic devices include mobile phones and other portable wireless devices, portable computers and other portable information terminals, portable blood pressure monitors and other portable body information measuring devices. Further, it can be applied to various devices such as a pedometer, a security buzzer, and a bracelet.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, the structure of the main body 11 of the wearable device 10 of the present embodiment will be described with reference to FIGS. 1 to 3. 1 is a schematic perspective view showing a state in which the main body 11 is seen obliquely from above, FIG. 2 is a schematic perspective view showing the state in which the main body 11 is seen obliquely from the bottom side, and FIG. FIG. 3B is a right side view, FIG. 3C is a rear view, FIG. 3D is a plan view, and FIG. 3E is a bottom view.

  The main body 11 is formed in an annular shape in which a band-like structure is curved and a part thereof is opened as a whole. The main body 11 has an elliptical shape substantially corresponding to the cross-sectional shape of the arm except for the opening 11a. With regard to the opening range (opening width) of the opening 11a, it is preferable that the central angle θx viewed from the central axis Ox shown in FIG. However, it is desirable that the central angle θx is in the range of 45 to 120 degrees in view of the wearability. In the illustrated example, the center angle θx is set to be in the range of 60 to 80 degrees.

  The main body 11 has a display unit 11A composed of a strip-shaped portion curved in a substantially elliptic cylindrical surface, a curved operation unit 11B connected to the display unit 11A, and a flat unit 11C connected to the operation unit 11B. is doing. The display unit 11A has a display screen 11d on the outer surface, and has a curved shape with a central angle θx extending over a range of approximately 160 to 190 degrees. An operation terminal 11b is provided on the outer surface of the operation unit 11B. By operating the operation terminal 11b (touching the operation terminal), various operations such as switching of appropriate functions such as device setting and display mode change are performed. It is configured to be able to. Unlike the display unit 11A and the operation unit 11B, the flat part 11C is configured to be flat when viewed in the extending direction of the main body 11. In the illustrated example, the flat portion 11C is configured in a parallel plate shape.

  The main body 11 has a pair of end portions 11e and 11f that are opposed to each other with the opening portion 11a interposed therebetween. One end portion 11e is constituted by the flat portion 11C, and the other end portion 11f is the front end of the display portion 11A. It consists of side parts.

  The main body 11 includes a first outer case 11X constituting an outer peripheral side portion of the display portion 11A, a second outer case 11Y constituting outer peripheral side portions of the operation portion 11B and the flat portion 11C, the first outer case 11X and the first outer case 11X. 2 It has inner case 11Z with which both outer case 11Y is mounted | worn from an inner side. A power source such as a display body, a circuit board, a battery, and a storage battery (not shown) is accommodated in an internal space defined by the first outer case 11X, the second outer case 11Y, and the inner case 11Z. Specifically, a display body is disposed between the first outer case 11X and the inner case 11Z, and a circuit board and a power source are disposed between the second outer case 11Y and the inner case 11Z. Is connected to the display. The power source is housed in the flat portion 11C.

  The main body 11 configured as described above can be obtained by passing an arm (wrist) directly through the opening 11a as shown in FIG. 4 (a), or through the opening 11a as shown in FIG. 4 (b). By inserting the palm and passing it through the arm (wrist) diagonally, it can be worn on the wrist as shown in FIG. Moreover, as shown in FIG. 1, it is also possible to use it as a figurine (table clock) in the attitude | position which arrange | positions the flat part 11C on an installation surface.

  By the way, there are various design problems in the annular main body 11 partially opened as described above. For example, when the opening width (the central angle) of the opening 11a is relatively increased without changing the inner diameter of the main body 11, it can be easily attached to the arm, but the opening 11a is large, so that it can be easily detached from the arm. If the opening width of the opening 11a is relatively small, it will be difficult to drop off from the arm, but instead it will be difficult to mount, and the difference between the thickness of the arm that can be easily mounted and the inner diameter of the body 11 will be difficult. Therefore, the main body 11 is easily rattled in the wearing state, and the wearing feeling is deteriorated.

  Therefore, when only the main body 11 is used, it is very difficult to set the inner diameter of the main body 11 and the opening width of the opening 11a, and the thickness of the arm to be worn varies depending on the individual. The setting work becomes even more difficult.

  In the present embodiment, the flexible belt 12 shown in FIG. 5 (a) is an external view of the flexible belt 12, FIG. 5 (b) is a side view, FIG. 5 (c) is an internal view, and FIG. 5 (d) is a diagram showing that the flexible belt is flattened in the extending direction. It is a figure which shows a mode that it looked from the extending direction when it did.

  The flexible belt 12 is made of a flexible elastic material having a smaller elastic modulus than that of the main body 11. The material may be a synthetic resin such as urethane resin or silicone rubber, leather, artificial Various materials such as leather can be used.

  The flexible belt 12 of this embodiment has a base end portion 12A that is detachably attached to one end portion 11e of the main body 11, and a belt-like portion 12B that extends from the base end portion 12A. is doing. The base end portion 12A is provided with an annular holding ring portion 12r through which the one end portion 11e can be inserted. Further, on the further proximal end side of the retaining ring portion 12r, a projecting piece portion 12p that protrudes in the penetrating direction of the retaining ring portion 12r (upward direction in FIG. 5A) is provided. On the other hand, the belt-like portion 12B is formed with a tip portion 12s configured in a tongue shape. A plurality of grooves 12d that intersect (orthogonal) the extending direction are formed on the outer surface of the distal end portion 12s at predetermined intervals in order to increase flexibility. Further, the inner surface of the flexible belt 12 is provided with a surface structure 12t in which a large number of grooves are formed in a stripe shape to enhance the feeling of wearing such as to easily dissipate sweat of the arms.

  The flexible belt 12 can close the opening portion 11a of the main body by bending the base end portion 12A in a state in which the base end portion 12A is attached to the one end portion 11e of the main body 11, and the distal end portion thereof. Has a length that can be superposed on the other end of the main body or a portion on the other end thereof.

  Next, with reference to FIG. 6 thru | or FIG. 9, the mounting method and usage method of the said flexible belt 12 are demonstrated. 6 is an explanatory perspective view showing a method of attaching the flexible belt 12 to the main body 11, and FIG. 7 is an explanatory sectional view. As shown in FIGS. 6A and 7A, the main body 11 is attached to the arm, and then the holding ring portion 12r of the flexible belt 12 is fitted to one end portion 11e of the main body 11. That is, by inserting the holding ring portion 12r at the end portion 11e, the base end portion 12A of the flexible belt 12 is attached to the main body 11 as shown in FIGS. 6B and 7B. In the illustrated example, the flexible belt 12 is attached to the main body 11 after the main body 11 is attached to the arm. However, the flexible belt 12 is attached to the main body 11 in advance, and then the main body 11 is attached to the arm. You may wear it.

  FIG. 8 is a perspective view for explaining how to use the flexible belt 12, and FIG. 9 is a sectional view for explaining how the flexible belt is used. As shown in FIG. 8, after the flexible belt 12 is attached to the main body 11, the flexible belt 12 is bent so as to bend inward, and as shown in FIG. It is inserted inside the other end 11 f of the main body 11. In this way, the front end portion 12s of the flexible belt 12 abuts on the inner side of the other end portion 11f and is held as it is, so that the flexible belt 12 is held in the opening portion of the main body 11. 11a is closed.

  When the distal end portion 12s is inserted inside the other end portion 11f with the base end portion 12A attached to the one end portion 11e of the main body 11, the distal end portion 12s is self-supporting. It is comprised so that it may be hold | maintained on the inner surface of the other edge part 11f or a part ahead of it. Such a configuration has the mechanical properties of the flexible belt 12 (elastic modulus, thickness, width, length, and other dimensions, surface friction coefficient, etc.), the inner surface of the end portion 11f of the main body 11 and the flexibility. This can be realized by adopting a configuration in which friction characteristics with the outer surface of the front end portion 12s of the belt 12 satisfy an appropriate condition. And if comprised in this way, since the flexible belt 12 will be able to maintain the state which closed the opening part 11a of the main body 11, it is convenient in preventing the main body 11 from dropping from an arm. .

  However, in the actual wearing state, the distal end portion 12s of the flexible belt 12 is accommodated in a relatively narrow range between the main body 11 and the arm, so that the above self-supporting condition is not satisfied. Even if it exists, it is possible to comprise so that the front-end | tip part 12s of the flexible belt 12 may be hold | maintained inside the main body 11 by presence of an arm.

  In this embodiment, even if there is a certain difference between the thickness of the arm and the inner diameter of the main body 11, the flexible belt 12 closes the opening 11 a, so that the main body 11 falls off from the arm. Can be prevented. More specifically, since a predetermined frictional force acts between the outer surface portion of the front end portion 12s of the flexible belt 12 and the inner surface portion of the other end portion 11f of the main body 11, the front end portion 12s becomes the end portion 11f. When the arm tries to come out from the inside, resistance due to the frictional force is generated, and when the arm tries to come out from the opening portion 11a, the arm presses the flexible belt 12 from the inside to the end portion 11f side. It gets bigger. Therefore, in practice, the main body 11 does not fall off the arm unless the tip end 12s of the flexible belt 12 is intentionally pulled out of the main body 11.

  Further, in the above-mentioned wearing state, the base end portion 12A and the tip end portion 12s of the flexible belt 12 are both disposed inside the end portions 11e and 11f of the main body 11, so that the flexible belt 12 is connected to the arm and the main body. 11 is interposed. Therefore, even if there is a certain difference between the thickness of the arm and the inner diameter of the main body 11, the degree of closeness between the arm and the main body 11 can be increased by interposing the flexible belt 12. The feeling of wearing can be improved.

  Also, as shown in FIG. 9, in this embodiment, the flexible belt 12 is attached to the flat portion 11C formed at one end portion 11e of the main body 11, so that the holding ring portion 12r can be easily attached and detached. In addition, the mounting state of the base end portion 12A with respect to the main body 11 can be stabilized.

  Further, since the projecting piece 12p protrudes further on the edge side of the holding ring portion 12r in the base end portion 12A, when the base end portion 12A is attached to the end portion 11e, the projecting piece portion 12p is attached to the main body 11. The base end portion 12A can be positioned with respect to the main body 11 by contacting the inner surface, more specifically, the inner surface of the curved operation portion 12B adjacent to the flat portion 11C. That is, the protrusion 12p abuts on the curved inner surface portion of the main body 11, and the mounting depth of the retaining ring 12r is restricted. Further, since the projecting piece 12p and the curved inner surface of the main body 11 come into contact with each other, the holding ring portion 12r adjacent to the projecting piece 12p is deformed inward. A resistance force against deep mounting occurs, and the resistance force also brings an advantage of increasing a holding force of the flexible belt 12 with respect to the main body 11.

  In the above embodiment, when the flexible belt 12 is bent and the opening 11a of the main body 11 is closed, the leading end 12s overlaps the other end 11f of the main body 11. You may comprise longer than the flexible belt 12 of such illustration. For example, a flexible belt 12 ′ indicated by a dotted line in FIG. 9 may be used. In this case, the flexible belt 12 ′ extends along the inner surface of the main body 11 and is interposed between the arm and the main body 11 over a wide range. Then, since the action of the flexible belt 12 ′ interposed between the arm and the main body 11 as the elastic material or the buffering material is further enhanced, the gap between the arm thickness and the inner diameter of the main body 11 is increased. Even if there is a certain difference, the backlash of the main body 11 is further reduced, and the feeling of wearing can be further enhanced. The length of the flexible belt 12 'is preferably set so that portions arranged on the inner surface of the main body 11 do not overlap each other, that is, less than one round.

  Next, another embodiment different from the above embodiment will be described below. FIG. 10 is a schematic side view showing the configuration of another embodiment. In this embodiment, a flexible belt 13 is joined to the edge of one end 11 e of the main body 11. In addition, the structure of the main body 11 is the same as that of said embodiment.

  The flexible belt 13 can be made of the same material as the flexible belt 12, but unlike the flexible belt 12, the flexible belt 13 is directly joined to the main body 11, so that the detachable structure is is not. As a method for joining the main body 11 and the flexible belt 13, a known method such as welding or adhesion can be employed.

  In this embodiment, unlike the embodiment described above, the flexible belt 13 cannot be removed from the main body 11. However, since the flexible belt 13 has sufficient flexibility, the main body 11 is used as an arm. It does not become a big obstacle when wearing.

  FIG. 11 is a schematic side view showing still another embodiment. In this embodiment, the end of the flexible belt 14 is joined to the inner surface of one end 11 e of the main body 11. The joining method is the same as the method described for the flexible belt 13. In this case, since the joined end of the flexible belt 14 is disposed inside the main body 11, the flexible belt 14 is interposed between the arm and the main body 11 like the flexible belt 12 described above. The degree of closeness of the arms can be increased, and the wearing feeling can be improved.

  FIG. 12 shows still another flexible belt 15 structure. This flexible belt 15 has a structure in which a base end portion 15A and a tip end portion 15B are connected by a belt-like portion 15C, and a holding ring portion 15r is provided not only at the base end portion 15A but also at the tip end portion 15B. Yes. In the illustrated example, the projecting piece 15p is also formed on both the base end portion 15A and the tip end portion 15B.

  As shown in FIG. 13, the flexible belt 15 is used with a base end portion 15A attached to one end portion 11e of the main body 11, but the other end of the main body 11 is attached to the holding ring portion 15r of the front end portion 15B. It is different from the previous embodiments in that the tip portion 15B can be attached to the other end portion 11f in a manner of inserting the portion 11f. If comprised in this way, the mounting state of the main body 11 and the flexible belt 15 can be hold | maintained still more reliably.

  In the same configuration, for example, as shown in FIG. 14, the distal end portion 12 s of the flexible belt 12 is inserted into a separate holding ring 16 fitted to the other end portion 11 f of the main body 11. Can also be realized. In addition, the connection and fixation between the distal end portion of the flexible belt and the other end portion of the main body can be performed by, for example, a hook structure, an engagement structure including a button and a slit, a hook-and-loop fastener, or the like. Further, in each of the above embodiments, the flexible belt 12 is attached to one end 11e (flat portion 11C) of the main body 11, and the distal end 12s of the flexible belt 12 is engaged with the other end 11f when in use. However, conversely, the flexible belt 12 may be attached to the other end portion 11f, and the tip end portion 12s may be engaged with the one end portion 11e during use.

  It should be noted that the wearable device of the present invention is not limited to the illustrated examples described above, and it is needless to say that various modifications can be made without departing from the gist of the present invention. For example, in the embodiment described above, what is configured as a wristwatch has been described. However, the wearable device of the present invention is not limited to a wristwatch, but includes jewelry such as a bracelet, a pedometer, a sphygmomanometer, a computer device, a communication device, a navigation device ( It can be configured as various devices such as a GPS device.

The schematic perspective view of embodiment. The schematic perspective view of embodiment. The front view (a), right view (b), back view (c), top view (d), and bottom view (e) of an embodiment. Explanatory drawing (a)-(c) which shows the mounting method to the arm of a main body. The external view (a) of the flexible belt, the side view (b), the internal view (c), and the figure (d) seen in the extending direction. The perspective view for description which shows the mounting method to the main body of a flexible belt (a) and (b). Sectional drawing for description which shows the mounting method to the main body of a flexible belt (a) and (b). The perspective view for description which shows the usage method of a flexible belt. Sectional drawing for description which shows the usage method of a flexible belt. Explanatory drawing which shows other embodiment. Explanatory drawing which shows another embodiment. Furthermore, the external view which shows the flexible belt of different embodiment. FIG. 13 is an explanatory sectional view showing a state in which the flexible belt shown in FIG. 12 is used. Furthermore, sectional drawing for description which shows a mode that another embodiment was used. The schematic side view which shows the structure of the conventional wristwatch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Main body, 11a ... Opening part, 11A ... Display part, 11B ... Operation part, 11C ... Flat part, 11X ... 1st outer case, 11Y ... 2nd outer case, 11Z ... Inner case, 11e ... One edge part, 11f ... the other end, 12 ... a flexible belt, 12A ... a base end, 12B ... a belt-like portion, 12r ... a retaining ring, 12p ... a projecting piece, 12s ... a tip

Claims (10)

A wearable device configured in an annular shape in which a band-shaped main body is curved and partly opened,
The base end portion is connected to one end portion of the main body, and the opening portion of the main body can be closed by curving, and the front end portion is located at the other end portion of the main body or beyond. A wearable device comprising a flexible belt having a length that can be overlapped with a portion.   When the flexible belt is bent and the tip portion is disposed on the inner surface of the other end portion of the main body or a portion at the tip of the flexible belt, the tip portion is independently held on the inner surface. The wearable device according to claim 1, wherein the wearable device is configured as described above.   The wearable device according to claim 1 or 2, wherein the base end portion of the flexible belt is disposed on an inner surface of the one end portion.   The wearable device according to any one of claims 1 to 3, wherein the flexible belt is detachably connected to the one end portion.   The flexible belt is provided at the base end portion, and has a holding ring portion that holds the one end portion in a inserted state, and a belt-like portion that extends from the holding ring portion toward the distal end side. The wearable device according to claim 4.   The flexible belt further includes a projecting piece portion provided at an inner portion of an end portion of the holding ring portion opposite to the belt-like portion so as to protrude in the insertion direction of the holding ring portion. The wearable device according to claim 5.   The wearable device according to any one of claims 4 to 6, wherein the one end portion is configured to be flat when viewed in the extending direction of the main body.   The engagement structure comprised so that attachment or detachment was mutually possible was provided in the said other end part of the said main body, and the said front-end | tip part of the said flexible belt. The wearable device according to one item.   The wearable device according to any one of claims 1 to 8, wherein the wearable device is an electronic device having an electronic circuit built in the main body. The wearable device according to any one of claims 1 to 9, wherein the wristwatch includes a timekeeping means in the main body.

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