Retention and band

Abstract

To provide a deployment buckle allowing a user to adjust a band length and firmly fix the band.SOLUTION: A deployment buckle 10 includes a first extension piece body 71 formed into a U shape and whose closed end side is pivotally supported by one end of a deployment buckle cover 3 of the band 1, and a second extension piece body 72 connected to the open end side of the first extension piece 71 via a first spring bar 73 being the connection member. The second extension piece body 72 is fixed to the first extension piece body 71 at a position different from a connection position in the first spring bar 73 being the connecting member, and the first extension piece body 71 is fixed to the deployment buckle cover 3 at a position different from the one end pivotally supported by the deployment buckle cover 3.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a middle part and a band.

Background Art

[0002] Conventionally, as a band attached to a device case such as a wristwatch and worn on the wrist or the like, a band connected by a middle part is known.

[0003] Depending on the device such as a watch to which the band is attached, in addition to the normal use state, there are devices that are assumed to be worn from above, such as the sleeve of clothing. For example, in a so-called diver's watch worn during diving, it is assumed to be worn from above while wearing a thick wet suit made of fabric. For a band attached to such a device, it is preferable that the band length can be easily adjusted between the normal use state of directly wearing on the wrist and the use state for a predetermined purpose of wearing from above a wet suit or the like.

[0004] For example, Patent Document 1 describes a configuration in which a spring bar connected to a band pin is slidable in the longitudinal direction of the band within a slide window of a length adjustment plate. According to this, it becomes possible to finely adjust the band length within the range of the slide window of the length adjustment plate.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the configuration described in Patent Document 1, the spring rod is hooked on the slide window of the length adjustment plate, and the position (length) is finely adjusted only by the telescopic member. For this reason, the band length cannot be firmly fixed at an appropriate length, and particularly in a harsh usage environment such as during diving as described above, the reliability is lacking.

[0007] The present invention has been made in view of the above circumstances, and an object thereof is to provide a buckle and a band that enable adjustment of the band length and can be firmly fixed.

Means for Solving the Problems

[0008] In order to solve the above problems, a buckle according to one aspect of the present invention includes: a first extension member formed in a U shape, with the closed end side pivotally supported at one end of the buckle cover of the band; a second extension member connected to the open end side of the first extension member The first spring rod via; including, the second extension member is fixed to the first extension member at a position different from the connection position in the The first spring rod ; the first extension member is fixed to the buckle cover at a position different from the one end pivotally supported by the buckle cover 、 The second extension member can be in a folded state arranged to overlap the first extension member and a stretched state pulled out in the length direction of the band. The first extension member and the second extension member can be accommodated inside the middle cover in the folded state. The first spring rod extends in a penetrating state through the first extension member and the second extension member in the width direction of the band. In the accommodated state where the first extension member and the second extension member are accommodated inside the middle cover, both ends are locked to the middle cover. being characterized by this. The middle part according to another aspect of the present invention is A first extension member formed in a U shape and pivotally supported at one end of the middle cover of the band at the closed end side, A second extension member connected to the open end side of the first extension member via a connecting member, including The second extension member is fixed to the first extension member at a position different from the connecting position of the connecting member. The first extension member is fixed to the middle cover at a position different from the one pivotally supported by the middle cover. At least a part of the open end side of the first extension member can be in a state of protruding from the middle cover. It is characterized by this.

Effects of the Invention

[0009] According to the present invention, it is possible to adjust the band length and it has the effect of being able to be firmly fixed.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0011] Hereinafter, with reference to the drawings, an embodiment of a middle retainer according to the present invention and a band having the same will be described. The band in this embodiment is assumed to have a normal use state of being directly worn on the arm or the like, and a use state of being worn from above clothing or the like with the band length longer than normal. According to each use state, the band length can be easily adjusted at the middle part. As a use state of wearing from above clothing or the like, for example, in the case of a watch band in which a band having a middle part is attached to a device case of a watch (for example, a so-called diver's watch), a case of wearing from above a wet suit during diving is assumed. Note that although various technically preferable limitations are imposed on the following embodiments for carrying out the present invention, the scope of the present invention is not limited to the following embodiments and illustrated examples.

[0012] [Configuration] While referring to FIGS. 1 to 9, an embodiment of the middle part of this embodiment and a band having this middle part will be described. FIG. 1 is a perspective view of a middle part in a housed state in which an extension piece body is housed inside a middle cover and a band including the same. FIG. 2 is a perspective view showing the internal structure of the middle part with the middle cover of the middle part shown in FIG. 1 in a transparent state. FIG. 3 is a side view of the middle part shown in FIG. 2 and a band including the same. Further, FIG. 4 is a perspective view of a middle part and a band in a band extension state in which an extension piece body is pulled out from the inside of a middle cover. FIG. 5 is a perspective view of the middle part and the band shown in FIG. 4 as viewed from the non-visible side of the band.

[0013] Conventionally, for example, there is a configuration in which an extension piece is built in the middle part in advance, and when it is desired to make the band length longer than during normal use, the band length can be adjusted by a simple operation. For example, as a configuration in which the extension piece is housed in the middle part and fixed at a predetermined position, a male post is provided on one of the middle part or the extension piece body, and a hole or a recess for receiving this male post is provided on the other of the middle part or the extension piece body, and the male post and the hole or the like are fixed by fitting them together. However, when fixing by fitting the male post and the hole or the like, there is a problem that the male post wears out and the fixing force weakens during repeated attachment and detachment.

[0014] It is for improving such a situation, and a middle stay and a band that can withstand repeated use and have excellent wear resistance are described as follows.

[0015] The band 1 includes a first band 1a attached to one end side (for example, the 6 o'clock side in an analog clock) of a device case (not shown), and a second band 1b attached to the other end side (for example, the 12 o'clock side in an analog clock). The first band 1a and the second band 1b are connected by a middle stay 10.

[0016] The band 1 (the first band 1a and the second band 1b) is configured by connecting a plurality of pieces 11 as shown in FIG. 1 etc. The pieces 11 constituting the band 1 are formed of a metal material such as titanium, stainless steel (SUS), or aluminum. Note that the material constituting the pieces 11 is not limited to those exemplified here.

[0017] The middle stay 10 has a middle stay cover 3 and a constituent member that overlaps the inside (non-visible side) of the middle stay cover 3. The middle stay cover 3 is a metal part formed of a metal material such as titanium, stainless steel (SUS), or aluminum. As shown in FIGS. 1 to 5 etc., the middle stay cover 3 is formed in a long shape along the length direction of the band 1 and constitutes the appearance part of the middle stay 10.

[0018] Specifically, the middle stay cover 3 includes a front plate part 31 which is a long flat plate part constituting the exterior surface of the middle stay cover 3, and a pair of side wall parts 32 vertically provided on both sides of the front plate part 31. The space surrounded by the front plate part 31 and the pair of side wall parts 32 is an accommodation area for accommodating various constituent members constituting the middle stay 10.

[0019] One end side (left side in FIGS. 1 to 5) of the middle cover 3 has one end of the middle folding member 4 locked thereto (see FIG. 3 etc.). When connecting the first band 1a and the second band 1b by the middle stay 10, the middle folding member 4 is arranged on the non-visible side of the middle cover 3 (the accommodation area of the middle cover 3) so as to substantially follow the middle cover 3 in a folded state where two plate members are folded over each other. Also, as shown in FIGS. 2 and 3, the middle stay 10 of the present embodiment includes, as a constituent member, a locking unit 5 that maintains the folded state of the middle folding member 4 arranged in the folded state. The middle stay 10 of the present embodiment is a middle stay of a three-fold type band in which the folded middle folding member 4 is arranged on the non-visible side of the middle cover 3 together with the locking unit 5.

[0020] The locking unit 5 has push buttons 51 that respectively project from a pair of side wall portions 32 of the middle cover 3, and is configured such that the folded state of the middle folding member 4 is released when the push buttons 51 are pushed in from both sides of the middle cover 3. When the folded state of the middle folding member 4 is released, the connected state in which the first band 1a and the second band 1b are connected is released, and the band 1 can be removed from the object to be worn such as the user's arm.

[0021] Also, as shown in FIG. 1 etc., the middle stay 10 of the present embodiment includes a locking mechanism 6 that locks (restricts) the inward pushing operation of the push button 51 of the locking unit 5. Thereby, it is restricted so that the push button 51 is not pushed in unintentionally and the band 1 does not enter the connection release state.

[0022] As shown in FIGS. 2, 3, and 5, in the present embodiment, the locking unit 5 and the locking mechanism 6 are accommodated closer to the locking end side (left side in FIGS. 1 to 5) of the middle folding member 4 in the accommodation area inside (non-visible side) of the middle cover 3. As shown in FIGS. 2 and 3, an extension piece body 7 is accommodated in the accommodation area on the other end side of the middle cover 3 (the side opposite to the side where the middle folding member 4 is locked, right side in FIGS. 1 to 5).

[0023] The extension member body 7 is a component that can easily extend the length of the band 1 even when the first band 1a and the second band 1b connected by the intermediate stay 10 remain connected. The extension member body 7 includes a first extension member body 71 and a second extension member body 72, and the first extension member body 71 and the second extension member body 72 can be accommodated inside the intermediate stay cover 3 (non-visible side) in a folded state.

[0024] Specifically, as shown in FIG. 5, the first extension member body 71 is formed in a substantially U-shape, and the closed end side (the closed side of the U) is pivotally supported by a support shaft 8 at the inner end (the right end from FIG. 1 to FIG. 5) of the intermediate stay cover 3 of the band 1. In the present embodiment, when the first extension member body 71 and the second extension member body 72 are accommodated inside the intermediate stay cover 3 in a folded state, as shown in FIGS. 2 and 3, when the folded intermediate folding member 4 is arranged on the non-visible side of the intermediate stay cover 3 together with the locking unit 5, the extension member body 7 is accommodated on the non-visible side (inside) of the intermediate stay cover 3 so as to be sandwiched between the intermediate folding member 4 and the intermediate stay cover 3.

[0025] The second extension member body 72 is connected to the open end side (the open side of the U) of the first extension member body 71 via a first spring rod 73 (connecting member), and is configured to be able to take a folded state arranged to overlap the first extension member body 71 and an extended state pulled out in the length direction of the band 1. That is, the second extension member body 72 is formed to fit inside the first extension member body 71 formed in a substantially U-shape. Therefore, in the folded state, the first extension member body 71 and the second extension member body 72 are compactly arranged in a space corresponding to the length of the first extension member body 71 (the length in the length direction of the band 1) (see FIGS. 2 and 3). When in the extended state, the length of the extension member body 7 portion becomes longer than the length of the first extension member body 71 by the amount by which the second extension member body 72 is pulled out (see FIGS. 4 and 5).

[0026] The second extended piece body 72 only needs to have a width that can fit inside the first extended piece body 71 formed in a substantially U shape, and it may be smaller than the space width inside the first extended piece body 71. However, from the perspective of strength when it is in an extended state pulled out from inside the first extended piece body 71, it preferably has a width that fits almost without a gap inside the first extended piece body 71. Note that on the side of the second extended piece body 72 opposite to the connection side with the first extended piece body 71, a connection portion 725 connected to the piece body 11 constituting the band 1 (the second band 1b) is continuously provided.

[0027] The first spring bar 73 extends in a penetrating state through the first extended piece body 71 and the second extended piece body 72 in the width direction of the band 1. FIG. 6 is a schematic cross-sectional view taken along line XI-XI of FIG. 4, showing a state where the first spring bar 73 penetrates the first extended piece body 71 and the second extended piece body 72. As shown in FIG. 6, first through holes 74 (shown as first through holes 74a and 74b in FIG. 6) penetrating in the width direction of the band 1 are respectively formed on the open end side of the first extended piece body 71.

[0028] Also, in the second extended piece body 72, on the attachment side to the first extended piece body 71, a second through hole 75 that communicates with the first through hole 74 (the first through holes 74a and 74b) of the first extended piece body 71 and penetrates in the width direction of the band 1 is formed. The first spring bar 73 is inserted into the first through hole 74 (the first through holes 74a and 74b) and the second through hole 75, and penetrates the first extended piece body 71 and the second extended piece body 72. Also, the tip portions 731 on both sides of the first spring bar 73 protrude outside the first through hole 74 (the first through holes 74a and 74b) of the first extended piece body 71 arranged on the outside.

[0029] In the accommodated state where the first extended piece body 71 and the second extended piece body 72 are accommodated inside the middle cover 3, the tip portions 731 on both sides of the protruding first spring bar 73 are locked to the middle cover 3. That is, in a pair of side wall portions 32 which are the sides of the intermediate holding cover 3, portions for accommodating the first extended piece body 71 and the second extended piece body 72 are provided, and hole portions 321 are respectively formed corresponding to the positions of the tip portions 731 of the first spring rod 73. When the first extended piece body 71 and the second extended piece body 72 are accommodated inside the intermediate holding cover 3, the tip portions 731 on both sides of the first spring rod 73 are adapted to fit into these hole portions 321.

[0030] In this way, the intermediate holding portion 10 includes the first extended piece body 71 formed in a U shape and pivotally supported at one end of the intermediate holding cover 3 of the band 1 at the closed end side, and the second extended piece body 72 connected to the open end side of the first extended piece body 71 via a connecting member (the first spring rod 73). The second extended piece body 72 is fixed to the first extended piece body 71 at a position different from the connecting position of the connecting member (the first spring rod 73), and the first extended piece body 71 is fixed to the intermediate holding cover 3 at a position different from the position pivotally supported at one end of the intermediate holding cover 3.

[0031] Note that the tip portion 731 of the first spring rod 73 preferably has a rounded shape. By providing an R on the tip portion 731, when the extended piece body 7 in a state where the first spring rod 73 is inserted is accommodated inside the intermediate holding cover 3, the first spring rod 73 is less likely to be caught on the side wall portion 32 or the like of the intermediate holding cover 3 and can be fitted with less resistance. The first spring rod 73 compressed to such an extent that it is not caught by the intermediate holding cover 3 returns to its original length by the spring reaction force when it fits into the hole portion 321 and is in a state of being firmly locked to the hole portion 321.

[0032] Further, a screw hole 722 is formed in the second extended piece body 72 so as to be orthogonal to the second through hole 75 from any surface. In the present embodiment, as shown in FIG. 2 and the like, among the surfaces of the second extended piece body 72, in a state where the extended piece body 7 is accommodated inside the intermediate holding cover 3, the screw hole 722 is formed from the surface facing the inner surface of the front plate portion 31 of the intermediate holding cover 3 toward the second through hole 75 (see FIGS. 4 and 6). As shown in FIG. 6, a screw 78 is provided in the threaded hole 722 with the first spring rod 73 inserted through the second through hole 75. The screw 78 is screwed in until its tip abuts against the first spring rod 73. Thereby, the position of the first spring rod 73 in the second through hole 75 is fixed by the screw 78 inserted through the second extension piece 72 from a direction orthogonal to the extending direction of the first spring rod 73. Note that the screw 78 only needs not to protrude outside the second extension piece 72 from the threaded hole 722, and the specific shape of the screw 78 is not particularly limited.

[0033] Also, as shown in FIGS. 4 and 5, inside the second extension piece 72, a third through hole 76 substantially parallel to the first through hole 74 (first through holes 74a and 74b) and the second through hole 75 is formed. A second spring rod 77 is inserted through the third through hole 76. The second spring rod 77 is arranged substantially parallel to the first spring rod 73 and extends in a penetrating state through the second extension piece 72 in the width direction of the band 1.

[0034] In addition, it is preferable that the tip portions 771 on both sides of the second spring rod 77 have a rounded shape similar to the tip portions 731 at both ends of the first spring rod 73. By providing an R on the tip portion 771, when fitting the second extension piece 72 in a state where the second spring rod 77 is inserted into the U-shaped space so as to overlap with the first extension piece 71, the second spring rod 77 is less likely to be caught by the first extension piece 71 or the like, and can be fitted with less resistance.

[0035] In the folded state where the second extension piece 72 is arranged to overlap with the first extension piece 71, hole portions 711 are formed on the inner side surfaces of the first extension piece 71 corresponding to the tip portions 771 on both sides of the second spring rod 77. When the second extension piece 72 is fitted into the first extension piece 71, the tip portions 771 on both sides of the second spring rod 77 are fitted into the hole portions 711. The second spring bar 77 compressed to such an extent that it does not catch on the first extension piece 71 or the like returns to its original length by the reaction force of the spring when it fits into the hole 711 and is firmly locked in the hole 711.

[0036] A screw hole 723 is formed in the second extension piece 72 so as to be orthogonal to the third through hole 76 from any surface. In the present embodiment, similar to the screw hole 722 described above, among the surfaces of the second extension piece 72, when the extension piece 7 is accommodated inside the middle cover 3, the screw hole 723 is formed from the surface facing the inner surface of the front plate portion 31 of the middle cover 3 toward the third through hole 76 (see FIG. 4). As shown in FIG. 4, with the second spring bar 77 inserted through the third through hole 76, a wood screw 78 is provided in the screw hole 723. The wood screw 78 is screwed in until its tip abuts against the second spring bar 77. Thereby, the position of the second spring bar 77 in the third through hole 76 is fixed by the wood screw 78 inserted through the second extension piece 72 from a direction orthogonal to the extending direction of the second spring bar 77. Note that the wood screw 78 does not need to protrude outside the second extension piece 72 from the screw hole 723, and similar to the wood screw 78 for fixing the first spring bar 73, the specific shape and the like of the wood screw 78 are not particularly limited.

[0037] [Operation] While referring to the drawings, the operation of the middle portion and the band including the middle portion in the present embodiment will be described.

[0038] In a connected state where the first band 1a and the second band 1b are connected by the middle portion 10, and when the extension piece 7 is accommodated in a folded state inside the middle cover 3 (the state shown in FIGS. 1 to 3), it can be directly worn on the user's arm or the like. By adjusting in advance the number of pieces 11 constituting the band 1 or the like, the user can set the band length to fit their own arm.

[0039] When the user wears the band 1 adjusted to their own size over a wet suit or the like during diving or the like in this way, the extension body 7 is pulled out from the middle cover 3 while keeping the middle stay 10 in a connected state. For example, in this embodiment, by strongly pulling the second band 1b provided with the extension body 7 with respect to the middle stay 10, the second spring bar 77 that penetrates the second extension body 72 and the tip 771 of which is locked to the hole 711 of the first extension body 71 has its tip 771 disengaged from the hole 711, and as shown in FIGS. 7 and 8, the folded state in which the second extension body 72 is fitted into the first extension body 71 is released.

[0040] Furthermore, when the second band 1b is strongly pulled with respect to the middle stay 10, the tip 731 of the first spring bar 73 that penetrates the first extension body 71 and the second extension body 72 and the tip 731 of which is locked to the hole 321 of the middle cover 3 is disengaged from the hole 321, resulting in the state shown in FIG. 9. By further pulling the second band 1b in this state, when the extension body 7 is completely pulled out from the inside (non-visible side) of the middle cover 3, the band extension state shown in FIGS. 4 and 5 is achieved. As a result, the length of the band can be increased by the length of the extended extension body 7 (the length of the first extension body 71 and the length of the second extension body 72 that overlapped with the first extension body 71), and it becomes possible to wear the band 1 even over thick fabrics such as wet suits.

[0041] When it is desired to return the band 1 to its normal use state, the second extension body 72 is brought into a folded state overlapping the first extension body 71 by a procedure opposite to that when the band 1 is in the extended state, and further, while in this folded state, it is brought into a housed state where it is housed inside the middle cover 3. Note that the folded state in which the second extension body 72 overlaps the first extension body 71 is maintained by the second spring bar 77 being locked to the hole 711 of the first extension body 71. For this reason, for example, as shown in FIGS. 7 and 8, the second extension body 72 does not hang down from the first extension body 71, which is also preferable in terms of the appearance design of the band 1. Thus, in the band 1 provided with the intermediate portion of the present embodiment, it is possible to easily adjust the length of the extension piece 7 without removing the piece body 11 and re-adjusting the band length. Further, the adjustment of the length of the extension piece 7 can be performed simply by pulling out the extension piece 7 from the intermediate cover 3 without removing the intermediate portion 10 and putting the band 1 in the disconnected state.

[0042] [Effect] As described above, according to the present embodiment, the intermediate portion 10 includes a first extension piece 71 formed in a U shape and pivotally supported at one end of the intermediate cover 3 of the band 1 on the closed end side, and a second extension piece 72 connected to the open end side of the first extension piece 71 via a first spring rod 73 which is a connecting member. The second extension piece 72 is fixed to the first extension piece 71 at a position different from the connecting position of the first spring rod 73 which is the connecting member, and the first extension piece 71 is fixed to the intermediate cover 3 at a position different from the end pivotally supported by the intermediate cover 3.

[0043] Further, in the present embodiment, the connecting member is the first spring rod 73. The second extension piece 72 can be in a folded state arranged to overlap the first extension piece 71 and a stretched state pulled out in the length direction of the band 1. The first extension piece 71 and the second extension piece 72 can be accommodated inside the intermediate cover 3 in the folded state. The first spring rod 73 extends in a penetrating state penetrating the first extension piece 71 and the second extension piece 72 in the width direction of the band 1. In the accommodated state where the first extension piece 71 and the second extension piece 72 are accommodated inside the intermediate cover 3, both ends are locked to the intermediate cover 3.

[0044] Therefore, during normal use, the extended portion can be compactly accommodated inside the intermediate cover 3, and when wearing a wet suit or the like, the band length can be easily increased by the length of the first extension piece 71 and the second extension piece 72. Thereby, the band length can be easily adjusted without attaching or detaching the piece body 11 using a jig or the like, and it is possible to flexibly and quickly respond to different usage situations. The adjustment of the length of the extension body 7 can be performed simply by pulling out the extension body 7 from the intermediate cover 3 without releasing the connection state of the band 1, and there is no risk of accidentally dropping the clock 100 during fine adjustment of the band length. Also, since spring rods (the first spring rod 73 and the second spring rod 77) are used as means for locking the extension body 7, unlike the case of locking using a dowel, for example, even when the intermediate cover 3 for locking the extension body 7 is formed of a metal such as SUS, wear, chipping, etc. are less likely to occur due to repeated use, and the locking force (fixing force) does not weaken. Therefore, high reliability can be maintained even after long-term use.

[0045] Further, the intermediate portion 10 of the present embodiment includes a second spring rod 77 that is parallel to the first spring rod 73 and extends in a penetrating state through the second extension body 72 in the width direction of the band 1. In the folded state, the second extension body 72 is in a fitting state where it fits inside the first extension body 71, and when the second extension body 72 fits with the first extension body 71, both ends of the second spring rod 77 are locked to the first extension body 71 to maintain the fitting state. In this way, since the state where the first extension body 71 and the second extension body 72 are fitted together can be maintained, it is possible to prevent the pulled-out extension body 7 from hanging down in the gravitational direction when the extension body 7 is pulled out from the intermediate cover 3. As a result, the appearance is not impaired even in the extended state of the band 1. Also, since a spring rod (the second spring rod 77) is used in the configuration for maintaining the state where the first extension body 71 and the second extension body 72 are fitted together, wear, chipping, etc. are less likely to occur due to repeated use, and the locking force (fixing force) can be maintained for a long time.

[0046] In the present embodiment, the first spring rod 73 is fixed by a sweet potato screw 78 inserted into the second extension body 72 from a direction orthogonal to the extending direction of the first spring rod 73. Therefore, the first spring rod 73 does not shift or fall out within the first and second through holes 74, 75 of the second extension body 72 and can be surely held in place. In addition, since the first spring bar 73 can be fixed only by the sweet potato-shaped fastener 78 that does not affect the appearance, the first spring bar 73 is not exposed except for the tip portion 731, and the appearance design of the band 1 is excellent.

[0047] Also, in the present embodiment, the second spring bar 77 is also fixed by the sweet potato-shaped fastener 78 inserted into the second extension piece 72 from a direction orthogonal to the extending direction of the second spring bar 77. Therefore, the second spring bar 77 is also surely fixed while being disposed in the third through hole 76. In addition, since the second spring bar 77 can be fixed only by the sweet potato-shaped fastener 78 that does not affect the appearance, the second spring bar 77 is not exposed except for the tip portion 771, and the appearance design of the band 1 is excellent.

[0048] When the intermediate portion 10 having such a configuration is provided in the band 1, the band length can be easily adjusted by the lengths of the first extension piece 71 and the second extension piece 72. Therefore, when the thickness of the object to be worn changes, such as when the band is directly worn on the arm or when it is worn over clothing, the band length can be easily adjusted without using a jig or the like to attach and detach the piece 11, and it is possible to flexibly and quickly respond to different usage situations. Also, the adjustment of the length of the extension piece 7 can be performed simply by pulling out the extension piece 7 from the intermediate cover 3 without releasing the connection state of the band 1, and it is possible to respond without taking the trouble of removing the band 1 during fine adjustment of the band length. Furthermore, since the adjustment can be made without releasing the connection state of the band 1, there is no risk of accidentally dropping the watch 100 during adjustment. In addition, since a spring bar is used as the means for locking the extension piece 7, unlike the case where locking is performed using a dowel, for example, even when the intermediate cover 3 for locking the extension piece 7 is formed of a metal such as SUS, wear, chipping, etc. due to repeated use are less likely to occur, and the locking force (fixing force) does not weaken. Therefore, high reliability can be maintained even after long-term use.

[0049] Further, the intermediate portion 10 of the present embodiment includes a locking unit 5 that maintains the folded state of the folding member 4 locked to one end side of the intermediate cover 3. The intermediate cover 3 of the present embodiment includes a front plate portion 31 and a pair of side wall portions 32 vertically provided on both side portions of the front plate portion 31. The locking unit 5 has push buttons 51 respectively protruding from the pair of side wall portions 32 of the intermediate cover 3. When the push buttons 51 are pushed in from both sides of the intermediate cover 3, the folded state of the folding member 4 is released. Therefore, unless the locking unit 5 is intentionally released, the folded state of the folding member 4 is not released, and the band 1 does not enter the disconnected state. Thereby, it is possible to prevent the band 1 from accidentally coming off.

[0050] Further, the intermediate portion 10 of the present embodiment includes a locking mechanism 6 that regulates the inward pushing operation of the push button 51 of the locking unit 5. The locking unit 5 and the locking mechanism 6 are housed closer to the locking end side of the folding member 4, which is one end side, in the accommodation area inside the intermediate cover 3. In the accommodation area on the opposite side to the side where the folding member 4 is locked, which is the other end side, the first extension member 71 and the second extension member 72 are housed. Therefore, it is possible to more reliably prevent the band 1 from accidentally entering the disconnected state. In addition, since the extension member 7 can be housed in the empty portion of the accommodation area inside the intermediate cover 3, the extension member 7 can be compactly housed when the band 1 is used without extension.

[0051] [Modification Example] Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to such embodiments, and various modifications are possible without departing from the gist thereof.

[0052] For example, in the above embodiment, the portion where the first spring rod 73 is locked is the hole portion 321 formed in the intermediate cover 3, and the portion where the second spring rod 77 is locked is the hole portion 711 formed in the first extension member 71. However, the portions where the first spring rod 73 is locked and the second spring rod 77 is locked are not limited to this. Any structure that can lock the tip portions 731 and 771 of the spring rods may be used, for example, a non-penetrating recess. In this case, the locked portion does not appear on the exterior, resulting in a more aesthetically pleasing design.

[0053] Also, for example, in the above embodiment, the band 1 is composed of a plurality of pieces 11, and these pieces 11 are illustrated as being formed of a metal material. However, each piece 11 is not limited to being formed of a metal material. For example, the pieces 11 may be formed of a hard synthetic resin such as ABS resin, super engineering plastics such as polyarylate (PAR), engineering plastics such as polyacetal (POM) and polycarbonate (PC), or ceramics. Furthermore, not all pieces need to be formed of the same material. A band may be formed by combining pieces formed of a metal material, pieces formed of various resins, and pieces formed of ceramics or the like. By forming the pieces from various materials in this way, the variety of textures and designs is expanded. The material for forming the middle portion 10 is not limited to that shown in the embodiment, and for example, various materials as described above may be used.

[0054] Furthermore, the band only needs to be a band having a structure in which a first band and a second band are provided and connected by a middle portion, and is not limited to being composed of a plurality of pieces. For example, a first band and a second band each integrally formed of various leathers or resins may be connected by a middle portion.

[0055] Also, the middle portion is not limited to the three-fold middle portion shown in the embodiment. Any other type of middle portion may be used as long as it can accommodate the first extended piece and the second extended piece inside the middle portion cover (non-visible side). Also, the detailed configurations of the locking unit 5 and the locking mechanism 6 are not particularly limited. It is not essential to provide a locking unit or a locking mechanism, and a middle portion without these may also be used.

[0056] Also, the configuration of the extension piece 7 is not limited to that shown in the embodiment. For example, the first extension piece locked to the intermediate cover 3 may be in a block shape, and the second extension piece connected thereto may be formed in a U shape into which the first extension piece can be fitted inside. In this case, a first spring rod and a second spring rod are provided inside the first extension piece, and the first extension piece is configured to be locked inside the second extension piece by the second spring rod.

[0057] Also, in the embodiment, an example is shown in which the sweet potato 78 is inserted from a surface corresponding to the inner surface (the back surface of the front plate portion 31) of the intermediate cover 3 in the accommodated state. However, the insertion direction of the sweet potato 78 may be any direction that is orthogonal to the first spring rod 73 and the second spring rod 77 and can press the first spring rod 73 and the second spring rod 77. The sweet potato 78 has a shape without a screw head and no catch, and does not protrude outward. Therefore, if there is no problem during incorporation, it may be inserted, for example, from the side surface of the second extension piece 72.

[0058] Also, in the embodiment, the first spring rod 73 extends in a penetrating state through the first extension piece 71 and the second extension piece 72 in the width direction of the band 1, and in the accommodated state where the first extension piece 71 and the second extension piece 72 are accommodated inside the intermediate cover 3, both ends are configured to be locked to the intermediate cover 3. However, the configuration is not limited to this. For example, a cross-sectional view of the extension piece in a modified example is shown in FIG. 10.

[0059] The connecting member is configured such that a pair of slide portions 101 are pushed outward from both ends of the pipe portion 103 by the spring force of the spring member 102. In this case, the pipe portion 103 is formed such that its outer diameter is the same size as or slightly smaller than the inner diameter of the first through holes 74 (74a, 74b).

[0060] The spring member 102 is, for example, a coil spring, and its outer diameter is formed to be slightly smaller than the inner diameter of the pipe portion 103. This spring member 102 is configured such that both ends are elastically contacted with the inner ends of a pair of slide portions 101 to bias the pair of slide portions 101 in a direction to push them out from the inside to the outside of the pipe portion 103.

[0061] In addition, the band 1 to which the middle portion 10 of the present invention is applied is not limited to a band attached to a diver's watch. For example, it can be widely applied to bands attached to devices (such as various sports watches and various biological information measuring devices) that are supposed to be worn from above, such as ski clothes and thick outdoor jackets.

[0062] Also, in each of the above embodiments, the case where the middle portion 10 is provided in the band 1 such as a watch worn on the wrist is exemplified. However, the band to which the middle portion of the present invention can be applied is not limited to a watch band. As long as it is a band having a structure including a first band and a second band and connecting them by a middle portion, the middle portion of the present invention can be widely applied to bands other than those worn on the wrist.

[0063] Although some embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, and includes the scope of the invention described in the claims and its equivalent scope.

Explanation of Reference Numerals

[0064] 1 Band 3 Middle Cover 7 Extension Member 71 First Extension Member 72 Second Extension Member 73 First Spring Rod (Connecting Member) 74 First Through Hole 75 Second Through Hole 76 Third Through Hole 77 Second Spring Rod 78 Screw 321 Hole Portion 711 Hole Portion 722 Screw Hole 723 Screw Hole Retention in the middle of 10

Claims

1. A first extension member formed in a U-shape and pivotally supported at one end of the inner cover of the band at the closed end side, A second extension member connected to the open end side of the first extension member via a first spring rod, Including, The second extension member is fixed to the first extension member at a position different from the connection position on the first spring rod, The first extension member is fixed to the inner cover at a position different from the one end pivotally supported by the inner cover, The second extension member can take a folded state arranged to overlap the first extension member and an extended state pulled out in the length direction of the band, The first extension member and the second extension member can be accommodated inside the inner cover in the folded state, The first spring rod extends in a penetrating state penetrating the first extension member and the second extension member in the width direction of the band, and in the accommodated state where the first extension member and the second extension member are accommodated inside the inner cover, both ends are locked to the inner cover, The inner cover characterized by this.

2. A first extension member formed in a U-shape and pivotally supported at one end of the inner cover of the band at the closed end side, A second extension member connected to the open end side of the first extension member via a connecting member, Including, The second extension member is fixed to the first extension member at a position different from the connection position on the connecting member, The first extension member is fixed to the inner cover at a position different from the one end pivotally supported by the inner cover, At least a part of the open end side of the first extension member can take a state of protruding from the inner cover, The inner cover characterized by this.

3. The connecting member is a first spring rod, The second extension member can take a folded state arranged to overlap the first extension member and an extended state pulled out in the length direction of the band, The first extension member and the second extension member can be accommodated inside the inner cover in the folded state, The first spring rod extends in a penetrating state penetrating the first extension member and the second extension member in the width direction of the band, and in the accommodated state where the first extension member and the second extension member are accommodated inside the inner cover, both ends are locked to the inner cover, The inner cover according to Claim 2, characterized by this.

4. A second spring bar is provided which is parallel to the first spring bar and extends in a penetrating state through the second extension piece in the width direction of the band. In the folded state, the second extension piece is in a fitting state where it fits inside the first extension piece. When the second extension piece fits with the first extension piece, both ends of the second spring bar are locked to the first extension piece to maintain the fitting state. The middle insert according to claim 1 or claim 3, characterized in that.

5. The first spring bar is fixed by a sweet potato screw inserted into the second extension piece from a direction orthogonal to the extending direction of the first spring bar. The middle insert according to claim 1 or claim 3, characterized in that.

6. The second spring bar is fixed by a sweet potato screw inserted into the second extension piece from a direction orthogonal to the extending direction of the second spring bar. The middle insert according to claim 4, characterized in that.

7. The middle insert cover includes a front plate portion and a pair of side wall portions vertically provided on both sides of the front plate portion. In a state where the first extension piece and the second extension piece are accommodated inside the middle insert cover, holes are formed in each of the pair of side wall portions for locking both ends of the first spring bar. The middle insert according to claim 1 or claim 3, characterized in that.

8. On the inner surface of the first extension piece, when the second extension piece fits with the first extension piece, holes are formed for locking both ends of the second spring bar to the first extension piece. The middle insert according to claim 4, characterized in that.

9. Including a locking unit for maintaining the folded state of the middle folding member locked to one end side of the middle insert cover. The middle insert according to claim 1 or claim 2, characterized in that.

10. The middle insert cover includes a front plate portion and a pair of side wall portions vertically provided on both sides of the front plate portion. The locking unit has push buttons protruding from the pair of side wall portions of the middle insert cover, and the folded state of the middle folding member is released by pushing the push buttons from both sides of the middle insert cover. The middle insert according to claim 9, characterized in that.

11. The middle insert is provided with a locking mechanism for restricting the inward pushing operation of the push button of the locking unit. The engaging unit and the locking mechanism are accommodated in the accommodation region inside the middle cover, closer to the locking end side of the middle folding member which is one end side, and in the accommodation region on the side opposite to the side where the middle folding member which is the other end side is locked, the first extension piece body and the second extension piece body are accommodated. The middle stay according to claim 10, characterized in that.

12. A band, characterized by including the middle stay according to claim 1 or claim 2.

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