JP2023122174A - case and watch - Google Patents

Abstract

To provide a case that can simply and easily replace an exterior member, and a watch having the same.SOLUTION: A case includes: a case body 7 provided with a locking projection 15; an exterior member 8 having an engaging recess 16 releasably engaged with the locking projection 15; and a watch band 2 for displacing the exterior member 8 in a direction for separating the engaging recess 16 of the exterior member 8 from the locking projection 15 of the case body 7. Therefore, the exterior member 8 can be displaced by the watch band 2 in a direction in which the engaging recess 16 of the exterior member 8 is separated from the locking projection 15 of the case body 7. Resultantly, since the engagement between the locking projection 15 and the engaging recess 16 can be easily released, the exterior member 8 can be simply and easily removed from the case body 7 and replaced using no tool.SELECTED DRAWING: Figure 8

Description

TECHNICAL FIELD The present invention relates to a case used for electronic equipment such as a wristwatch, and a watch including the same.

For example, in wristwatches, as described in Patent Document 1, there is known a structure in which an exterior member is attached to a case in a replaceable manner. In this case, the exterior member has a structure including a decorated portion and a fitting portion provided on the peripheral edge of the decorated portion and arranged on the peripheral surface of the case.

JP-A-11-44775

However, in such wristwatches, the decorative portion of the exterior member is arranged on the upper surface of the case, and the fitting portion of the exterior member is fitted to the peripheral surface of the case to attach the exterior member to the case. If the fitting of the exterior member is loose, the exterior member is likely to come off from the case, and if the fitting of the exterior member to the case is tight, the case may be damaged.

In order to solve this problem, a structure has been developed in which a fitting portion is provided in the decorative portion of the exterior member so that the watch band can be inserted and fitted to the band fitting portion of the case. However, with such an exterior member, since the watchband must be inserted into the fitting portion of the exterior member, attaching and detaching the exterior member is troublesome, and the exterior member cannot be easily replaced.

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a case in which an exterior member can be simply and easily replaced, and a timepiece including the same.

The present invention comprises a case main body provided with a locking portion, an exterior member having an engaging portion that removably engages with the locking portion, and the engaging portion of the exterior member attached to the case main body. and a band that displaces the exterior member in a direction of disengagement from the locking portion.

According to this invention, the exterior member can be simply and easily replaced.

1 is an enlarged front view showing an embodiment in which the present invention is applied to a wristwatch; FIG. FIG. 2 is an enlarged perspective view of essential parts of the wristwatch case shown in FIG. 1, viewed obliquely from above; FIG. 2 is an enlarged perspective view of essential parts of the wristwatch case shown in FIG. 1, viewed obliquely from below; 2 is an enlarged cross-sectional view showing the essential parts of the wristwatch shown in FIG. 1, taken along the line AA. FIG. 2 is an enlarged rear view showing the essential parts of the wristwatch shown in FIG. 1; FIG. FIG. 6 is an enlarged cross-sectional view of the essential part of the wristwatch shown in FIG. FIG. 6 is an enlarged rear view of the essential parts of the wristwatch shown in FIG. 5, showing a state in which the watchband is shifted to the 9 o'clock side; FIG. 8 is an enlarged cross-sectional view of the main part of the wristwatch shown in FIG. 7, which is shown upside down in the CC arrow view;

An embodiment in which the present invention is applied to a wristwatch will be described below with reference to FIGS. 1 to 8. FIG.
This wristwatch includes a wristwatch case 1, as shown in FIGS. A band attachment portion 3 to which a watch band 2 is attached is provided at each portion of the wristwatch case 1 on the 12 o'clock side and the 6 o'clock side. Switch units 4 are provided at the 2 o'clock side, the 4 o'clock side, the 8 o'clock side and the 10 o'clock side of the wristwatch case 1 .

As shown in FIGS. 1 and 2, a watch glass 5 is attached to the upper opening of the watch case 1 via a glass packing (not shown). As shown in FIG. 3, a back cover 6 is attached to the lower portion of the wristwatch case 1 with a plurality of screws 6a via waterproof packing (not shown). Furthermore, a watch module (not shown) is provided inside the watch case 1 .

By the way, this wristwatch case 1 comprises a case body 7 and an exterior member 8, as shown in FIGS. The case main body 7 is made of a lightweight and high-strength material such as a synthetic resin in which carbon fiber or glass fiber is contained in a highly rigid polyamide resin. The case main body 7 is not limited to synthetic resin, and may be made of metal.

As shown in FIGS. 2 and 3, a band attachment body 10 of the band attachment portion 3 is provided so as to protrude from each portion of the case body 7 on the 12 o'clock side and the 6 o'clock side. The band attachment body 10 includes an attachment protrusion 10a protruding from the outer peripheral surface of the case body 7 and a pair of attachment arms 10b provided on both sides of the attachment protrusion 10a.

As shown in FIGS. 2 and 3, the band attachment body 10 is attached with the tip 2a of the watchband 2 disposed between a pair of attachment arm portions 10b. The arm portion 10b is covered with a cover portion 13 of the exterior member 8, which will be described later. In addition, through holes (not shown) into which a plurality of switch portions 4 are inserted and attached are provided at the 2 o'clock side, the 4 o'clock side, the 8 o'clock side and the 10 o'clock side of the case body 7, respectively. there is Further, a mounting cylinder portion 11 is provided around the through hole on the 10 o'clock side of the case body 7 .

On the other hand, as shown in FIGS. 1 to 3, the exterior member 8 has a decorative effect and is made of elastic synthetic resin such as urethane resin. The exterior member 8 is configured to be detachably attached to the outer peripheral surface of the case body 7 . That is, the exterior member 8 covers the exterior body portion 12 arranged to cover the outer peripheral surface of the case body 7 and the band mounting bodies 10 on the 6 o'clock side and the 12 o'clock side of the case body 7 . and a pair of cover portions 13 arranged at the same position.

As shown in FIGS. 2 and 3, the exterior main body 12 has an opening 12a into which the case body 7 is inserted and which exposes the watch glass 5 upward. there is In addition, a plurality of switches 4 provided at the 2 o'clock side, the 4 o'clock side, the 8 o'clock side and the 10 o'clock side of the case body 7 are inserted into the exterior main body 12. An insertion hole 12b is provided.

As shown in FIGS. 2 and 3, these switch insertion holes 12b are for inserting respective operation buttons (not shown) of the plurality of switch portions 4. The inner diameters of the plurality of switch portions 4 are It is formed larger than the outer diameter. As a result, when the exterior main body 12 is arranged to cover the outer peripheral portion of the case body 7, the plurality of switch portions 4 can be easily inserted into the respective switch insertion holes 12b, and the exterior main body 12 can be attached to the case. It is configured so that it can be easily attached to the outer periphery of the main body 7 .

On the other hand, as shown in FIGS. 1 to 3, the pair of cover portions 13 are arranged so as to cover the band mounting bodies 10 provided on the 6 o'clock side and 12 o'clock side of the case body 7 . is configured as That is, these cover portions 13 are arranged so as to cover the upper surface of each band mounting body 10 of the case body 7 and both side surfaces, that is, the respective side surfaces outside the pair of mounting arm portions 10b of the band mounting body 10. It is configured. Thus, each band attachment portion 3 of the wristwatch case 1 is formed by each band attachment body 10 of the case body 7 and a pair of cover portions 13 of the exterior member 8 .

2 to 4, the wristwatch case 1 also has an exterior attachment portion 14 for attaching the exterior member 8 to the case body 7. As shown in FIGS. The exterior mounting portions 14 are provided on one and the other inner surfaces of the plurality of locking projections 15 provided on the band mounting body 10 of the case body 7 and the cover portions 13 of the exterior member 8 facing each other. A plurality of engaging recesses 16 with which the plurality of locking projections 15 are releasably engaged.

As shown in FIGS. 2 to 4, the plurality of engaging projections 15 are provided on each side surface of the pair of mounting arm portions 10b of each band mounting body 10 of the case body 7, respectively. The plurality of engaging protrusions 15 are projections that gradually protrude from the upper side to the lower side, and have a substantially right-angled triangular cross-sectional shape. That is, each of the plurality of locking protrusions 15 has a slope 15a that slopes downward from the upper side and a flat lower surface 15b.

As shown in FIGS. 2 to 4, the plurality of engaging recesses 16 are substantially rectangular inclined recesses with which the plurality of locking projections 15 are respectively engaged. The plurality of engaging recesses 16 are provided on both inner surfaces of the cover portion 13 of the exterior member 8 corresponding to the outer side surfaces of the pair of mounting arm portions 10b of each band mounting body 10 of the case body 7. there is That is, the plurality of engaging recesses 16 are formed as inclined recesses whose depth gradually increases from the upper side to the lower side. That is, each engaging recess 16 has an upper slope 16a and a lower inner surface 16b.

2 to 4, when the exterior member 8 is placed on the case body 7 so as to cover the case body 7, the plurality of locking protrusions 15 are arranged to form the plurality of engagement recesses. 16, respectively. That is, when the cover portion 13 of the exterior member 8 is attached to the band attachment main body 10 of the case body 7 so as to cover the band attachment main body 10 of the case body 7 , the outer mounting portion 14 is configured so that the inner surfaces of both sides of the cover portion 13 are engaged with the locking projections. 15 is elastically deformed so as to be gradually expanded along the slope 15a, and the plurality of locking projections 15 are configured to be inserted into and engage with the plurality of engagement recesses 16. As shown in FIG.

4, when the cover portion 13 is elastically deformed and the locking projections 15 are inserted into the engaging recesses 16 and engaged, the locking projections 14 are engaged with each other. The sloped surface 15a of 15 is in close contact with the upper sloped surface 16a in the engaging recess 16, and the lower surface 15b of the locking projection 15 is pressed against the lower inner surface 16b in the engaging recess 16, so that the exterior member 8 is closed to the case body. 7 is configured to be locked.

That is, as shown in FIGS. 2 to 4, the cover portion 13 of the exterior member 8 is configured to be attached to the band attachment main body 10 of the case main body 7 so as not to come off upward with respect to the case main body 7. there is For this reason, the exterior member 8 is configured such that the exterior body portion 12 covers the outer peripheral portion of the case body 7 and the pair of cover portions 13 cover the band attachment bodies 10 on the 12 o'clock side and the 6 o'clock side respectively. configured to be attached to the

As shown in FIGS. 5 to 8, the wristwatch case 1 is constructed so that the engagement between the engagement projection 15 and the engagement recess 16 of the exterior mounting portion 14 is released by the watch band 2. there is That is, the tip portion 2a of the watch band 2 can move in the axial direction of the spring bar 17, that is, in the lateral direction perpendicular to the longitudinal direction of the watch band 2, with respect to the band mounting body 10 by the spring bar 17, which is a connecting member. attached to the

As shown in FIGS. 6 and 8, the spring bar 17, which is a connecting member, has projections attached to both end portions of a pipe portion so as to be elastically retractable. The spring rod 17 has a pipe part that is slidably inserted into the tip 2a of the watch band 2 and attached. It is configured to be mounted by being inserted into each projection mounting hole 10c of a pair of mounting arm portions 10b of the mounting body 10. As shown in FIG.

That is, each of the watchbands 2 on the 12 o'clock side and the 6 o'clock side, as shown in FIGS. , the length of the tip portion 2a is shorter than the length between the pair of mounting arm portions 10b.

As a result, between the front ends 2a of the watchbands 2 on the 12 o'clock side and the 6 o'clock side and the pair of mounting arm portions 10b of the band mounting main bodies 10 on the 12 o'clock side and the 6 o'clock side, As shown in FIGS. 5 to 8, gaps S are provided respectively. These gaps S are for moving the front ends 2a of the watch bands 2 on the 12 o'clock side and the 6 o'clock side along the axial direction of each spring bar 17, that is, along the lateral direction of each watch band 2. , which is set to be slightly longer than the length of engagement between the locking protrusion 15 and the engagement recess 16 (the depth of the bottom side of the engagement recess 16).

As shown in FIGS. 5 to 8, each of the watchbands 2 on the 12 o'clock side and the 6 o'clock side has a pressing portion that displaces the exterior member 8 in the direction in which the engaging concave portion 16 disengages from the locking convex portion 15. 18 are provided respectively. That is, the pressing portion 18 of the watch band 2 on the 6 o'clock side is provided at the end portion on the 9 o'clock side in each figure of the tip portion 2a of the watch band 2 on the 6 o'clock side, and the cover member 8 on the 6 o'clock side is provided. It is configured to contact one inner surface of the portion 13 . Similarly to the pressing portion 18 on the 6 o'clock side, the pressing portion (not shown) of the watch band 2 on the 12 o'clock side is the end portion on the 3 o'clock side in each figure of the tip portion 2a of the watch band 2 on the 12 o'clock side. , and is configured to contact one inner surface of the cover portion 13 on the twelve o'clock side of the exterior member 8 .

That is, of the pressing portions 18 on the 12 o'clock side and the 6 o'clock side, the pressing portion 18 on the 6 o'clock side is, as shown in FIG. The outer surface of the pressing portion 18 is positioned in the storage recess 19 that is open to the upper surface and the side surface on the 9 o'clock side, and the outer surface of the pressing portion 18 is the side portion on the 9 o'clock side in FIG. 6 of the cover portion 13 of the exterior member 8 is configured to abut against the inner surface of the

As a result, as shown in FIGS. 7 and 8, the pressing portion 18 on the 6 o'clock side is pushed into the storage recess of the mounting arm portion 10b when the tip portion 2a of the watch band 2 is slid to the 9 o'clock side in each figure. It is configured to be pushed out from inside 19 toward the 9 o'clock direction and elastically deform so as to expand the side portion of the cover portion 13 on the 9 o'clock side. 2 shows a state in which the watch band 2 on the 6 o'clock side is slid to the 9 o'clock side, and FIG. 3 shows a state in which the watch band 2 on the 12 o'clock side is slid to the 3 o'clock side. It is a diagram showing.

As shown in FIGS. 7 and 8, the 6 o'clock side pressing portion 18 is elastically deformed so that the 9 o'clock side portion of the cover portion 13 is pushed open. The engagement recess 16 provided on the side portion of the case body 7 is configured to be disengaged from the engagement protrusion 15 of one attachment arm portion 10b of the band attachment body 10 of the case body 7. As shown in FIG.

Similarly, the 12 o'clock side pressing portion 18 is similar to the 6 o'clock side pressing portion 18 shown in FIG. (not shown), the outer surface of the pressing portion 18 contacts the inner surface of the cover portion 13 of the exterior member 8 on the side 3 in FIG.

As a result, the pressing portion 18 on the 12 o'clock side is similar to the pressing portion 18 on the 6 o'clock side shown in FIGS. In addition, it is configured to be pushed out from the storage recess (not shown) of the mounting arm portion 10b toward the 3 o'clock direction, and elastically deform so as to expand the side portion of the cover portion 13 on the 3 o'clock side. .

7 and 8, the pressing portion 18 on the 12 o'clock side is elastically deformed so that the side portion on the 3 o'clock side of the cover portion 13 is pushed open. At this time, the engaging concave portion 16 provided on the side portion of the elastically deformed cover portion 13 is disengaged from the engaging convex portion 15 of one mounting arm portion 10b of the band mounting body 10 of the case body 7. ing.

Next, a procedure for assembling such a wristwatch case 1 will be described.
When assembling the wristwatch case 1, the watch glass 5 is attached to the upper opening of the case body 7 in advance. In this state, the switch portions 4 are inserted into the through holes provided on the 2 o'clock side, the 4 o'clock side, the 8 o'clock side, and the 10 o'clock side of the case main body 7 and attached.

Then, a timepiece module (not shown) is assembled in the case body 7, and the back cover 6 is attached to the lower part of the case body 7 with a plurality of screws 6a. In this state, the front end portion 2a of the watch band 2 is attached to each of the band attachment bodies 10 on the 12 o'clock side and the 6 o'clock side of the case body 7 by spring bars 17, respectively.

At this time, a spring rod 17 is slidably attached to the tip portion 2a of the watch band 2, and the tip portion 2a of the watch band 2 together with the spring rod 17 is placed between the pair of mounting arms 10b of the band mounting body 10 of the case body 7. Then, the projections on both sides of the spring bar 17 are inserted into the projection mounting holes 10c of the pair of mounting arms 10b. As a result, the watch band 2 is attached to the band attachment body 10 of the case body 7 .

In this state, the pressing portion 18 provided on one side of the tip portion 2a of the watchband 2 is inserted into the housing recess 19 provided on one attachment arm portion 10b of the band attachment main body 10 and arranged. At this time, a gap S is provided between the mounting arm portion 10b located on the pressing portion 18 side and the side portion of the tip portion 2a of the watchband 2. As shown in FIG. As a result, the tip portion 2a of the watchband 2 can slide in the axial direction of the spring rod 17 by the length of the gap S. As shown in FIG.

In this state, the exterior member 8 is attached to the case main body 7 . At this time, the edge of the upper opening 12a in the exterior main body 12 of the exterior member 8 corresponds to the outer peripheral portion of the watch glass 5 fitted in the upper opening of the case body 7, and the pair of covers of the exterior member 8 The part 13 is made to correspond to each band mounting body 10 on the 12 o'clock side and the 6 o'clock side of the case body 7 . In this state, the case body 7 is covered with the exterior member 8 to cover the case body 7 with the exterior member 8 .

At this time, the exterior body portion 12 of the exterior member 8 is placed on the outer peripheral portion of the case body 7, and the exterior body portion 12 is provided with the switch portion 4 inserted into a plurality of through holes provided in the case body 7. It is inserted into each of the plurality of switch insertion holes 12b. At this time, the pair of cover portions 13 of the exterior member 8 are placed over the band attachment bodies 10 on the 12 o'clock side and the 6 o'clock side of the case body 7 .

As a result, a plurality of locking projections 15 provided on each side surface of the pair of mounting arm portions 10b of the band attachment body 10 are replaced by a plurality of engaging recesses 16 provided on each inner surface of each of the two sides of the pair of cover portions 13. inside, and the plurality of locking protrusions 15 are engaged with the plurality of engagement recesses 16 respectively. That is, when the plurality of engaging recesses 16 engage with the plurality of locking projections 15 , the side portions on both sides of the cover portion 13 gradually spread along the slopes 15 a of the locking projections 15 . The locking protrusion 15 engages with the plurality of engagement recesses 16 by elastically deforming so as to be held.

At this time, the slope 15a of each locking projection 15 is in close contact with the upper slope 16a in each engagement recess 16, and the lower surface 15b of each locking projection 15 is the lower inner surface of each engagement recess 16. 16b, the exterior member 8 is locked to the case body 7. As shown in FIG. As a result, the cover portion 13 of the exterior member 8 is attached to the band attachment main body 10 of the case body 7 so as not to come off upward with respect to the case body 7 . For this reason, the exterior member 8 has an exterior body portion 12 attached to cover the outer periphery of the case body 7, and a pair of cover portions 13 which are attached to the band attachment bodies 10 on the 12 o'clock side and the 6 o'clock side. It can be covered and installed.

In this state, the pressing portions 18 provided at the distal end portion 2a of each watch band 2 are pressed by the inner surface of the cover portion 13 of the exterior member 8, and each pressing portion 18 is pushed against the mounting arm portion 10b of the band mounting body 10. It is pushed into the storage recess 19 and stored. At this time, a gap S is provided between the side surface of the tip portion 2a of each watch band 2 and the side surface of the mounting arm portion 10b for moving the tip portion 2a of the watch band 2 along the axial direction of the spring bar 17. be done.

Next, a procedure for exchanging the exterior member 8 attached to the case body 7 in this manner will be described.
In this case, the tip 2a of the watch band 2 is slid along the spring bar 17. As shown in FIG. For example, in the case of the watch band 2 on the 6 o'clock side, the tip 2a of the watch band 2 is sprung so as to eliminate the gap S between the side of the tip 2a and the side of the mounting arm 10b. slide along the bar 17;

Then, the pressing portion 18 provided at the distal end portion 2a of the watch band 2 is pushed out from the housing recess 19 of the mounting arm portion 10b of the band mounting body 10 toward the 9 o'clock direction in FIG. The cover portion 13 on the hour side is elastically deformed so as to expand the side portion on the 9 o'clock side in FIG. As a result, the engaging recess 16 provided on the 9 o'clock side of the cover portion 13 in FIG.

At this time, the engagement projection 15 of the mounting arm portion 10b is removed from the engagement recess 16 of the cover portion 13, and the engagement of the engagement recess 16 with the engagement projection 15 is released. In this state, part of the fingertip is inserted into the gap formed between the side surface of the cover portion 13 of the exterior member 8 on the 9 o'clock side in FIG. 8 and the side surface of the mounting arm portion 10b of the band mounting body 10, and The side portion of the cover portion 13 of 8 on the 9 o'clock side in FIG. 8 is turned up.

As a result, the 6 o'clock side cover portion 13 of the exterior member 8 can be easily removed from the 6 o'clock side band mounting main body 10 . Similarly, the 12 o'clock side cover portion 13 of the exterior member 8 is removed from the 12 o'clock side band mounting main body 10 . Therefore, the exterior member 8 can be removed from the case body 7 without using a tool, so that the exterior member 8 can be simply and easily replaced.

As described above, according to the wristwatch case 1, the case main body 7 provided with the locking projections 15 on the side surface and the locking projections 15 disposed on the outer periphery of the case body 7 are detachably engaged with the locking projections 15. and a watchband 2 that displaces the exterior member 8 in a direction in which the engagement recess 16 of the exterior member 8 is disengaged from the locking protrusion 15 of the case body 7 . With this, the exterior member 8 can be simply and easily replaced.

That is, in this wristwatch case 1, the watch band 2 displaces the exterior member 8 in a direction in which the engaging recess 16 of the exterior member 8 is disengaged from the locking projection 15 of the case body 7. The engagement between 15 and the engaging recess 16 can be easily released, so that the exterior member 8 can be simply and easily removed from the case body 7 and replaced without using a tool.

Moreover, in this wristwatch case 1 , the watch band 2 is provided with the pressing portion 18 that displaces the exterior member 8 in the disengagement direction of the engaging recess 16 from the engaging protrusion 15 . 18 can reliably and satisfactorily displace the exterior member 8 in the disengagement direction of the engaging recess 16 from the locking projection 15, thereby easily engaging the locking projection 15 and the engaging recess 16. And it can be released satisfactorily.

In addition, in the wristwatch case 1, the band attachment main body 10 is provided with the storage recess 19 for storing the pressing portion 18 of the watchband 2. Therefore, even if the pressing portion 18 is provided on the watchband 2, the band can be easily attached. When the main body 10 is covered with the cover portion 13 of the exterior member 8, the cover portion 13 allows the pressing portion 18 to be stored in the storage recess 19, and a gap S is formed between the watch band 2 and the band mounting body 10. can be well provided.

In addition, in this wristwatch case 1, the watchband 2 is attached to the band attachment body 10 provided in the case body 7 by the spring bar 17, which is a connecting member, so that the watchband 2 can be attached to the case body 7 easily and securely. It can be installed securely. That is, in this wristwatch case 1, the spring bar 17 is mounted in a state in which the front end 2a of the watch band 2 is arranged between a pair of mounting arms 10b provided on both sides of the mounting protrusion 10a of the band mounting body 10. Thus, the tip 2a of the watch band 2 can be attached to the band attachment body 10 easily and reliably.

In addition, in this wristwatch case 1, the locking projections 15 are provided on the side surface of the band mounting body 10, and the engaging recesses 16 are located in the exterior member 8 covering the band mounting body 10 corresponding to the locking projections 15. As a result, the exterior member 8 provided with the engaging recess 16 can be displaced by the distal end portion 2a of the watchband 2 attached between the pair of attachment arm portions 10b of the band attachment body 10. As a result, the engagement between the engagement projection 15 and the engagement recess 16 can be released easily and satisfactorily.

In addition, in this wristwatch case 1, the watchband 2 is attached so as to be movable in the lateral direction perpendicular to the longitudinal direction, so that the watchband 2 can be moved in the lateral direction, thereby Since the exterior member 8 can be displaced in a direction in which the engagement recess 16 of the member 8 is disengaged from the engagement projection 15 of the case body 7, the engagement between the engagement projection 15 and the engagement recess 16 can be easily performed. and can be reliably released.

In addition, in this wristwatch case 1, a gap S for moving the watchband 2 is provided between the watchband 2 and the band mounting body 10 in the lateral direction of the watchband 2. and the band mounting body 10, the watch band 2 can be moved reliably and satisfactorily in its lateral direction, thereby allowing the engagement protrusion 15 and the engagement recess 16 to be separated from each other. The engagement can be easily and reliably released.

In the above-described embodiment, the band attachment body 10 of the case body 7 is provided with the engagement protrusion 15, and the cover portion 13 of the exterior member 8 is provided with the engagement recess 16. Alternatively, the band mounting body 10 may be provided with an engaging concave portion and the cover portion 13 of the exterior member 8 may be provided with an engaging convex portion.

Further, in the above-described embodiment, the case where the entire exterior member 8 is formed of elastic synthetic resin such as soft urethane resin was described, but the present invention is not limited to this, For example, by providing a highly rigid reinforcing part such as metal in the side portion of the cover portion 13 of the exterior member 8 by insert molding or the like, the side portion of the cover portion 13 can be easily pushed open by the pressing portion 18 of the watchband 2. may be configured. In this case, when the side portions of the cover portion 13 are pushed apart by the pressing portions 18 of the watchband 2, the entire side portions of the cover portion 13 can be pushed out (displaced) more satisfactorily. and the engagement recess 16 can be easily released. At the same time, the length of the gap S provided between the watch band 2 and the band attachment body 10 can be shortened.

In addition, by integrally molding the pressing portion 18 of the watch band 2 with a material harder than that of the watch band 2, such as providing a highly rigid reinforcing part such as metal by insert molding, etc., the pressing portion 18 of the watch band 2 The side portion of the cover portion 13 may be configured to be easily spread. In this case as well, when the side portions of the cover portion 13 are pushed apart by the pressing portions 18 of the watch band 2, the entire side portions of the cover portion 13 can be pushed out (displaced) more satisfactorily. 15 and the engaging recess 16 can be easily released.

Further, the storage recess 19 provided in the attachment arm portion 10b of the band attachment main body 10 is not limited to the shape shown in FIGS. 6, that is, in the vertical direction (upward direction) of FIG. However, as in the present embodiment, by forming an opening on the upper surface of the mounting arm portion 10b, the area of the contact surface of the pressing portion 18 with the inner surface of the side portion of the cover portion 13 can be increased. The entire side portion of 13 can be pushed out (displaced) more satisfactorily, and the engagement state between the locking convex portion 15 and the engaging concave portion 16 can be easily released.

In the above-described embodiment, the case where the pressing portion 18 of the watch band 2 is separated from the engagement projection 15 and the engagement recess 16 has been described. Alternatively, the pressing portion 18 of the watch band 2 may be extended from the distal end portion 2 a of the watch band 2 so as to be closer to the engaging protrusion 15 and the engaging recess 16 . In this case, the housing recess 19 of the attachment arm portion 10b of the band attachment body 10 should be extended so as to approach the locking protrusion 15. As shown in FIG. This also makes it easier for the pressing portion 18 to release the engaging state between the engaging projection 15 and the engaging recess 16 .

Further, in the above-described embodiment, the spring rod 17 is used as the connecting member, but in the present invention, the connecting member is not necessarily the spring rod 17. You may use it as a member.

In the above-described embodiment, each of the watchbands 2 on the 12 o'clock side and the 6 o'clock side is provided with the pressing portion 18, and each mounting arm portion 10b of each of the band mounting bodies 10 on the 12 o'clock side and the 6 o'clock side. In the present invention, it is not necessary to provide the pressing portion 18 and the gap S on both the 12 o'clock side and the 6 o'clock side. The structure may be such that it is provided only on either one of the hour side and the 6 o'clock side.

In addition, in the above-described embodiment, the case where the front end portion 2a of the watch band 2 is arranged between the pair of mounting arm portions 10b of the band mounting body 10 for mounting has been described, but the present invention is not limited to this. , for example, a structure in which a recess is provided at the tip of the watch band 2, and a convex-shaped hand attachment body to be inserted into the recess of the watch band 2 is provided on the outer periphery of the case body 7 on the 12 o'clock side and the 6 o'clock side. Also good.

Furthermore, in the above-described embodiment, the application to a wristwatch has been described, but the subject of application of the present invention is not necessarily a wristwatch. It can also be applied to an arm-worn device.

Although one embodiment of the present invention has been described above, the present invention is not limited to this, and includes the invention described in the claims and their equivalents.
The invention described in the claims of the present application will be additionally described below.

(Appendix)
The invention according to claim 1 comprises a case body provided with a locking portion, an exterior member having an engaging portion that removably engages with the locking portion, and the engaging portion of the exterior member. and a band that displaces the exterior member in a direction to separate it from the locking portion of the case body.

The invention according to claim 2 is the case according to claim 1, wherein the band is provided with a pressing portion that displaces the exterior member in a direction in which the engaging portion is disengaged from the locking portion. is the case.

The invention according to claim 3 is the case according to claim 1 or 2, wherein the band is attached to a band attachment main body provided in the case main body by a connecting member. is.

The invention according to claim 4 is the case according to claim 3, wherein the engaging portion is provided on the side surface of the band attachment main body, and the engaging portion is provided on the exterior covering covering the band attachment main body. The case is characterized in that it is provided at a portion of the member corresponding to the locking portion.

The invention according to claim 5 is the case according to any one of claims 1 to 4, wherein the band is attached so as to be movable in a lateral direction perpendicular to the longitudinal direction. This is a case of

The invention according to claim 6 is the case according to any one of claims 1 to 5, wherein between the band and a band attachment body provided on the case body, a band for moving the band is provided. is provided in the lateral direction orthogonal to the longitudinal direction of the band.

According to a seventh aspect of the invention, there is provided a timepiece comprising the case according to any one of the first to sixth aspects.

REFERENCE SIGNS LIST 1 watch case 2 watch band 2a tip 3 band mounting portion 4 switch portion 5 watch glass 6 back cover 7 case main body 8 exterior member 10 band mounting main body 10a mounting projection 10b mounting arm 10c projection mounting hole 11 mounting cylindrical portion 12 exterior Body portion 12a Opening 12b Switch insertion hole 13 Cover portion 14 Exterior mounting portion 15 Locking protrusion 15a Slope 15b Lower surface 16 Engagement recess 16a Upper slope 16b Inner surface 17 Spring bar 18 Pressing portion 19 Storage recess

Claims (7)

a case body provided with a locking portion;
an exterior member having an engaging portion that removably engages with the locking portion;
a band that displaces the exterior member in a direction in which the engaging portion of the exterior member is disengaged from the locking portion of the case body;
A case comprising: In the case of claim 1,
A case, wherein the band includes a pressing portion that displaces the exterior member in a disengagement direction of the engaging portion from the locking portion. In the case of claim 1 or claim 2,
A case, wherein the band is attached to a band attachment body provided in the case body by a connecting member. In the case of claim 3,
The locking portion is provided on a side surface of the band mounting body,
A case, wherein the engaging portion is provided at a portion corresponding to the engaging portion in the exterior member covering the band attachment main body. In the case according to any one of claims 1 to 4,
A case, wherein the band is attached so as to be movable in a lateral direction orthogonal to its longitudinal direction. In the case according to any one of claims 1 to 5,
A case characterized in that a gap for moving the band is provided between the band and a band mounting body provided on the case body in a lateral direction orthogonal to a longitudinal direction of the band. . A timepiece comprising the case according to any one of claims 1 to 6.

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