Bands and watches

Abstract

To provide a band and a watch in which a band length can be easily adjusted by a user without using a special adjustment tool.SOLUTION: A band includes a first band, a second band, and an intermediate fastener for connecting the first band and the second band. The intermediate fastener includes a cover having a bottom surface part and a side surface part. The second band includes: an end link provided at an end on the intermediate fastener side; and an engagement member held by the end link and engaging with the cover. The side surface part is provided with a plurality of holes along a longitudinal direction of the second band. The engagement member includes: an engagement part that engages with the hole of the side surface part; and an operation part that moves the engagement part between an engagement position for engagement with the hole in a width direction of the second band and a non-engagement position for being away from the hole.SELECTED DRAWING: Figure 4

Description

Technical Field

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

Background Art

[0002] Conventionally, there has been a wristwatch band that includes a first band portion, a second band portion, a case connected to the first band portion, and a button unit connected to the second band portion and detachably connected to the case, and is provided with means for adjusting the length of the band (see, for example, Patent Document 1). In the band of Patent Document 1, a plurality of button holes are formed on two side surfaces of the case, the first and second buttons of the button unit are protruded from the accommodating portion and inserted into the button holes, and by inserting an adjuster into the operation hole of the accommodating portion from the outside, each button is moved toward the accommodating portion side to be removed from the button hole, then the accommodating portion is moved to a different button hole position and the adjuster is pulled out, so that each button is inserted into the different button hole to adjust the length of the band.

Prior Art Literature

Patent Literature

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] Although the band of Patent Document 1 has the advantage that the user can adjust the length of the band, it has the problems that it requires the use of a special adjuster, the adjustment operation is cumbersome, and adjustment cannot be performed if the adjuster is lost.

Means for Solving the Problem

[0005] The band of the present disclosure comprises a first band, a second band, and a clasp connecting the first band and the second band, wherein the clasp has a cover having a bottom portion and a side portion, the second band has an end link provided at the end on the clasp side and an engaging member held by the end link and engaging with the cover, the side portion has a plurality of holes along the longitudinal direction of the second band, and the engaging member has an engaging portion that can engage with the holes in the side portion and an operating portion that moves the engaging portion between an engaged position in the width direction of the second band and a disengaged position that is disengaged from the holes.

[0006] The watch of this disclosure is characterized by comprising the band described above. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view showing a wristwatch according to the first embodiment. [Figure 2] This is a perspective view showing the clasp in the open state of the folding member of the first embodiment. [Figure 3] This is a perspective view showing the clasp cover and end link of the first embodiment. [Figure 4] This is an exploded perspective view showing the clasp cover and end link of the first embodiment. [Figure 5] This is a perspective view showing the clasp in the closed state of the folding member of the first embodiment. [Figure 6] This is a side view showing the clasp in the closed state of the folding member of the first embodiment. [Figure 7] This is a plan view showing the clasp in the closed state of the folding member of the first embodiment. [Figure 8] This is a side view showing the clasp in the closed state of the folding member of the second embodiment. [Figure 9] This is a perspective view showing the end link of the third embodiment. [Figure 10] This is an exploded perspective view showing the end link of the third embodiment. [Figure 11] This is a perspective view showing the end link of the fourth embodiment. [Figure 12] It is an exploded perspective view showing the end link of the fourth embodiment. [Figure 13] It is a view showing an assembly step of the end link of the fourth embodiment. [Figure 14] It is a perspective view showing the end link of the fifth embodiment. [Figure 15] It is an exploded perspective view showing the end link of the fifth embodiment. [Figure 16] It is a perspective view showing the end link of the sixth embodiment. [Figure 17] It is a perspective view showing the end link of the sixth embodiment. [Figure 18] It is a perspective view showing the end link of the seventh embodiment. [Figure 19] It is a perspective view showing the end link of the seventh embodiment. [Figure 20] It is a perspective view showing the end link of the eighth embodiment. [Figure 21] It is a perspective view showing the end link of the eighth embodiment. MODE FOR CARRYING OUT THE INVENTION

[0008] [First Embodiment] Hereinafter, the first embodiment will be described with reference to the drawings. A wristwatch 100 as a timepiece comprises an outer case 101, a first band 1 and a second band 2, as shown in Fig. 1. Lugs 102 are each integrally provided at the 6 o'clock position and the 12 o'clock position of the outer case 101, respectively. The first band 1 is connected to the lug 102 at the 6 o'clock position using a mounting pin, and the second band 2 is connected to the lug 102 at the 12 o'clock position using a mounting pin.

[0009] The first band 1 and the second band 2 are assembled by connecting a plurality of pieces 3 composed of middle pieces 3A and outer pieces 3B, as shown in FIG. 2. An end link 30A is provided at the open end of the first band 1, and an end link 30 is provided at the open end of the second band 2 as shown in FIG. 3. These end links 30 and 30A are connected by the clasp 5 shown in FIGS. 2 to 5.

[0010] The clasp 5 is a three-fold clasp provided with a middle folding member 9. FIG. 2 is a perspective view of the clasp 5 in a state where the middle folding member 9 is opened, FIG. 3 is an exploded perspective view showing the clasp 5 and the end link 30, and FIG. 4 is a partially exploded perspective view showing the back side of the cover 11 of the clasp. In each figure, an axis along the longitudinal direction of the first band 1 and the second band 2 is defined as an X axis, an axis orthogonal to the X axis along the width direction of the first band 1 and the second band 2 is defined as a Y axis, and an axis orthogonal to the X axis and the Y axis is defined as a Z axis. On the X axis, the direction from the clasp 5 toward the first band 1 is defined as an X1 direction, and the direction from the clasp 5 toward the second band 2 is defined as an X2 direction. On the Y axis, the direction from the center in the width direction of the cover 11 toward the first side surface portion 131 is defined as a Y1 direction, and the direction toward the second side surface portion 132 is defined as a Y2 direction. On the Z axis, the direction in which the first side surface portion 131 and the second side surface portion 132 extend from the bottom surface portion 12 of the cover 11 is defined as a Z1 direction, and the opposite direction is defined as a Z2 direction. Here, when the wristwatch 100 is worn on a user's wrist, in the clasp 5, the Z1 direction is on the outer case 101 side, so the Z1 direction may be expressed as upper side and the Z2 direction as lower side. In addition, for each component, the surface on the Z1 direction side may be referred to as an upper surface, and the surface on the Z2 direction side may be referred to as a bottom surface.

[0011] The clasp 5 includes a middle folding member 9 and a clasp body 10, as shown in FIGS. 2 to 4. The middle folding member 9 is Having a hook 94 a middle plate 91, Outer panel 92 and it is a general middle folding member provided with the above components, so the description thereof is omitted.

[0012] [Configuration of Clasp Body] The clasp body 10 includes a cover 11 and a button unit 20, as shown in FIGS. 2 to 4.

[0013] As shown in Figures 2 to 4, the cover 11 comprises a plate-shaped bottom surface 12 that is curved in an arc shape along the X1 and X2 directions, and a first side surface 131 and a second side surface 132 that protrude in the Z1 direction from the outer edges of the bottom surface 12 in the Y1 and Y2 directions. The first side portion 131 and the second side portion 132 have through holes 14 through which the first button 21 and the second button 22 of the button unit 20 are inserted. The first side portion 131 and the second side portion 132 have holes 15 into which spring bars 93, to which the outer plate 92 is connected, are attached, and holes 16 into which end links 30 of the second band 2 are attached. In this embodiment, the first side portion 131 and the second side portion 132 have two holes 16 that are spaced apart in the X-axis direction, and by attaching the end link 30 to either hole 16, the length of the second band 2 extending from the clasp body 10 can be adjusted in two stages.

[0014] The button unit 20 comprises a first button 21, a second button 22, a case 23 housing the first button 21 and the second button 22, and a coil spring (not shown) that biases the first button 21 and the second button 22 toward each other. The first button 21 and the second button 22 are biased by the coil spring (not shown) toward protruding from the through hole 14. The first button 21 and the second button 22 also have planar L-shaped engaging pieces 21A and 22A formed on them. Engaging piece 21A is positioned between the second button 22 and engaging piece 22A, and engaging piece 22A is positioned between the first button 21 and engaging piece 21A. Therefore, the engaging pieces 21A and 22A are configured to move closer to each other when the first button 21 and the second button 22 are biased toward each other by the coil spring, and to move further apart when the first button 21 and the second button 22 are pressed. An elliptical opening 24 is formed in the center of the surface of the case 23. When the folding member 9 is folded and closed, the hook 94 of the middle plate 91 is inserted through the opening 24 between the engaging pieces 21A and 22A. The umbrella-shaped tip of the hook 94 pushes the engaging pieces 21A and 22A apart against the biasing force of the coil spring. Once the umbrella-shaped tip has passed over the engaging pieces 21A and 22A, the biasing force of the coil spring causes the engaging pieces 21A and 22A to grip the shaft portion of the hook 94, and the hook 94 is held in place by the engaging pieces 21A and 22A. Furthermore, when the user presses the first button 21 and the second button 22, the engaging pieces 21A and 22A separate from each other, allowing the hook 94 to be released and the folding member 9 to open.

[0015] [End link of the second band] Next, the end link 30 of the second band 2 will be explained with reference to Figure 4. The end link 30 is detachably attached to the cover 11 via a spring bar 40 with a lever, which is an engaging member. The end link 30 is formed by machining a solid metal material. The end link 30 has a body portion 31 and first arm portions 32 and second arm portions 33 that extend in the X2 direction from both ends of the body portion 31 in the Y-axis direction. A through hole 34 is formed in the torso portion 31, extending in the Y-axis direction. A groove 35 is formed at the end of the torso portion 31 on the side of the first arm portion 32, and this groove 35 is in communication with the through hole 34. The first arm portion 32 and the second arm portion 33 have through holes 36 that penetrate in the Y-axis direction. A middle piece 3A of piece 3 is positioned between the first arm portion 32 and the second arm portion 33, and the first arm portion 32, the second arm portion 33, and the middle piece 3A are connected by pins 37 that pass through the through holes 36 and the middle piece 3A.

[0016] The spring bar 40 comprises a pipe section 41, a first shaft member 42, a second shaft member 43, and a coil spring 44. The pipe section 41 is formed in a cylindrical shape, with an elongated hole 411 formed at one end. Both the left and right ends of the pipe section 41 have smaller diameter openings than the middle section. The first shaft member 42 comprises a shaft portion 421 that is larger in diameter than the end opening of the pipe portion 41 and is positioned inside the pipe portion 41, and a pin 422 that protrudes from the shaft portion 421 and out of the end opening of the pipe portion 41 and is inserted into the hole 16 of the first side portion 131. In addition, a lever-shaped operating portion 45 that protrudes from the elongated hole 411 is fixed to the shaft portion 421 of the first shaft member 42 by screws or press-fitting. The second shaft member 43 comprises a shaft portion 431 that is larger in diameter than the end opening of the pipe portion 41 and is positioned inside the pipe portion 41, and a pin 432 that protrudes from the shaft portion 431 and out of the end opening of the pipe portion 41 and is inserted into the hole 16 of the second side portion 132. The pins 422 and 432 of the first shaft member 42 and the second shaft member 43 are engaging portions that can engage with the hole 16 of the cover 11, and the same applies to the following embodiments. The coil spring 44 is positioned within the pipe section 41 between the first shaft member 42 and the second shaft member 43, with the pins 422 and 432 of the first shaft member 42 and the second shaft member 43 protruding from the openings at both ends of the pipe section 41. In this configuration, the operating part 45 is located at the pin 422 side end of the elongated hole 411. When the operating part 45 is slid towards the second shaft member 43 to compress the coil spring 44, the first shaft member 42 to which the operating part 45 is fixed also moves towards the second shaft member 43, reducing the protrusion of the pin 422 from the pipe section 41.

[0017] As shown in Figure 5, when the folding member 9 is folded and the clasp 5 is closed, the operating section 45 is configured such that its movement in the Y2 direction is restricted by the side surface 921 of the outer plate 92. In other words, the folding member 9 is a restricting part that prevents the operating section 45 from unintentionally moving in the Y2 direction and causing the pin 422 of the first shaft member 42 of the spring bar 40 to come out of the hole 16. Furthermore, as shown in Figure 6, in a side view of the clasp 5 from the Y-axis direction, the length L1 from the central axis of the pin 422 of the first shaft member 42 engaged with the hole 16 of the cover 11 to the tip of the operating part 45 is less than or equal to the length L2 from the central axis of the pin 422 to the surface 922 of the folded folding member 9. The surface 922 of the folding member 9 is the surface in the Z1 direction and is the surface that comes into contact with the user's wrist when the wristwatch 100 is worn. For this reason, when the clasp 5 and band are used with the folding member 9 folded, the operating part 45 does not protrude beyond the folding member 9 and come into contact with the user's wrist.

[0018] As shown in Figure 7, the maximum protrusion dimension of the pins 422 and 432 of the first shaft member 42 and the second shaft member 43, that is, the length L3 by which the pins 422 and 432 protrude from the end of the pipe portion 41 when the first shaft member 42 and the second shaft member 43 are biased by the coil spring 44 to move away from each other, is set to be shorter than the thickness T1 of the first side portion 131 and the second side portion 132 in which the holes 16 are formed. As a result, the pins 422 and 432 do not protrude from the holes 16 to the outside of the first side portion 131 and the second side portion 132, and the design is also improved.

[0019] [How to adjust the band length] Next, the method for adjusting the band length will be explained. To adjust the band length, open the clasp 5 and move the outer plate 92 of the folding member 9 from the restricting position that restricts the movement of the operating part 45 to the unrestricted position that does not restrict its movement. Next, move the operating part 45 in the Y2 direction, that is, towards the second side part 132, to move the pin 422 to the unengaged position and remove it from the hole 16 in the first side part 131. Then, move the end of the end link 30 on the operating part 45 side in the Z1 direction (upward) relative to the first side part 131, tilting it to a position where the first shaft member 42 of the spring bar 40 does not come into contact with the first side part 131. This allows the spring bar 40 to be moved in the Y1 direction relative to the end link 30, so that the pin 432 can be removed from the hole 16 in the second side part 132. Next, the end link 30 is moved in the X-axis direction, which is the longitudinal direction of the second band 2, relative to the cover 11. The pin 432 of the second shaft member 43 is inserted into another hole 16 formed in the cover 11. With the first shaft member 42 moved in the Y2 direction by the operating part 45, the end of the end link 30 on the operating part 45 side is moved in the Z2 direction, aligning the pin 422 with the hole 16 on the first side portion 131 side, and the operating part 45 is released. As a result, the coil spring 44 moves the first shaft member 42 in the Y1 direction, and the pin 422 moves to the engagement position and is inserted into the hole 16. With the above operation, the hole 16 in the cover 11 into which the spring bar 40 of the end link 30 engages can be selected, and the band length can be adjusted.

[0020] [Effects of the First Embodiment] By operating the operating part 45 of the spring bar 40, which is an engaging member held by the end link 30, the pin 422 of the first shaft member 42 is moved to the disengaged position, and the pin 422 is engaged with a selected hole 16 from among the multiple holes 16 formed in the cover 11, thereby changing the engagement position between the cover 11 and the end link 30 and adjusting the length of the band. Therefore, the user can easily adjust the band length by operating the operating part 45, and there is no need to use a special adjustment tool, so the pin 422 of the first shaft member 42 can be easily attached to and detached from the cover 11, and the band length adjustment operation can also be easily performed. Because it eliminates the need for a dedicated adjustment tool and has fewer parts, the manufacturing cost of the band, which consists of a first band 1, a second band 2, and a clasp 5, can be reduced. Furthermore, because the structure for adjusting the band length is simple, the band can be easily manufactured.

[0021] When the clasp 5 is closed, such as when the wristwatch 100 is being worn by a user, the movement of the operating part 45 is restricted by the folding member 9. This reliably prevents the operating part 45 from unintentionally moving in the Y2 direction and causing the pin 422 of the first shaft member 42 to dislodge from the hole 16. When the clasp 5 is closed, the operating part 45 does not protrude beyond the surface 922 of the folding member 9, thus preventing the operating part 45 from hitting the user's wrist and impairing the wearing comfort. Since the protrusion dimension L3 of the pins 422 and 432 of the first shaft member 42 and the second shaft member 43 is less than or equal to the thickness T1 of the first side portion 131 and the second side portion 132, the pins 422 and 432 can be prevented from protruding outside the cover 11, thereby improving the appearance of the cover 11.

[0022] [Second Embodiment] As shown in Figure 8, the band of the second embodiment is configured such that the length of the first side portion 131A of the cover 11A of the clasp body 10A in the thickness direction (Z-axis direction) is increased so that the operating portion 45 is hidden in a side view. That is, the length L1 from the central axis of the pin 422 of the first shaft member 42 engaged with the hole 16 of the cover 11A to the tip of the operating portion 45 is less than or equal to the length L4 from the central axis of the pin 422 to the free end 1311 on the Z1 direction side, which is the thickness direction of the first side portion 131. The free end 1311 of the first side portion 131 refers to the edge that is not connected to the bottom portion 12, rather than the edge that is connected to the bottom portion 12, and refers to the upper surface of the first side portion 131 that faces the outer case 101 side.

[0023] [Effects of the second embodiment] According to the band of the second embodiment, the same effects can be achieved with the same configuration as the first embodiment. Furthermore, the appearance can be improved because the operating section 45 is hidden by the cover 11A in a side view.

[0024] [Third Embodiment] The band of the third embodiment differs from the first and second embodiments in that the groove of the end link 30B on which the operating part 45 is located is an elongated hole 35B, as shown in Figure 9. Therefore, as shown in Figure 10, a spring bar 40 without the operating part 45 attached is inserted into the through hole 34B of the end link 30B, and then the operating part 45 is fixed to the shaft portion 421 of the first shaft member 42 via the elongated hole 35B. For example, the operating part 45 may be fixed by press-fitting it into the hole in the shaft portion 421, or a male thread may be formed on the operating part 45 and fixed by screwing it into a female thread formed on the shaft portion 421.

[0025] [Effects of the third embodiment] The band of the third embodiment can achieve the same effects as the first and second embodiments with the same configuration. Furthermore, since the operating part 45 is positioned in the elongated hole 35B which is closed at both ends, the spring bar 40 will not come off the end link 30B when the end link 30B is removed from the cover 11 after the operating part 45 has been attached to the first shaft member 42. For this reason, the end link 30B and the spring bar 40 can be integrated and handled easily.

[0026] [Fourth Embodiment] The fourth embodiment differs from the first to third embodiments in that the end link 50 is composed of two members, a first link 51 and a second link 61, as shown in Figures 11 to 13. The configuration of the clasp 5, the first band 1, and the second band 2 are the same as in the first embodiment, so their description and illustration are omitted. The first link 51 of the end link 50 is made of metal and, as shown in Figure 12, comprises a first arm 52, a second arm 53, and a connecting part 54. The first arm portion 52 has a first through hole 521, a first groove portion 522, a fixing hole 523, and a connecting hole 524. The first through hole 521, the fixing hole 523, and the connecting hole 524 are each formed to penetrate the first arm portion 52 in the Y-axis direction. The first groove portion 522 opens on the upper surface of the first arm portion 52 and communicates with the first through hole 521.

[0027] The second arm portion 53 has a second groove portion 531, a fixing hole 533, and a connecting hole 534. The second groove portion 531 is formed on the extension of the first through hole 521 and the first groove portion 522 of the first arm portion 52, penetrates the second arm portion 53 in the Y-axis direction, and is a groove that also opens on the upper surface of the second arm portion 53. The bottom surface of the second groove portion 531 is formed in an arc shape, similar to the first through hole 521. The fixing hole 533 penetrates the second arm 53 in the Y-axis direction and is a through hole coaxial with the fixing hole 523. The connecting hole 534 penetrates the second arm 53 in the Y-axis direction and is a through hole coaxial with the connecting hole 524.

[0028] The connecting portion 54 connects the first arm portion 52 and the second arm portion 53. Specifically, as shown in Figure 12, the connecting portion 54 is located midway between the ends of the first arm portion 52 and the second arm portion 53 in the X-axis direction, and is formed on the upper surface side in the Z1 direction. The side surface of the connecting portion 54 on the X1 direction side is an inclined surface 541.

[0029] The second piece 61 of the end link 50 is made of metal and has a through hole 611, a recessed groove 612, a fixing hole 613, and a retaining groove 615. The through hole 611 is formed by penetrating the second piece 61 in the Y-axis direction. The groove 612 opens on the upper surface of the second piece 61 and communicates with the through hole 611. When the first piece 51 and the second piece 61 are assembled, the groove 612 is continuous with the first groove 522. The fixing hole 613 is formed by penetrating the second piece 61 in the Y-axis direction. The retaining groove 615 is a recessed groove that opens onto the upper surface of the second piece 61, and is formed so that the connecting portion 54 can be positioned therein. A spring bar 40, which is an engaging member, is inserted into the through hole 611 of the second piece 61. The structure of the spring bar 40 is the same as in the first embodiment, so it is denoted by the same reference numerals and its description is omitted.

[0030] As shown in Figure 13(A), the first piece 51 and the second piece 61 are positioned with the spring bar 40 inserted into the through hole 611 of the second piece 61, the first shaft member 42 side of the spring bar 40 inserted into the first through hole 521, and the second shaft member 43 side positioned in the second groove 531. The operating part 45 is positioned in the first groove 522. Next, the first piece 51 and the second piece 61 are rotated relative to each other around the spring bar 40 as the axis of rotation. At this time, since the connecting part 54 has an inclined surface 541, the connecting part 54 can be placed in the retaining groove 615. Then, the pins 55 are inserted through the fixing holes 523, 613, and 533 to connect and fix the first piece 51 and the second piece 61. Furthermore, the middle piece 3A of the second band 2 is positioned between the first arm portion 52 and the second arm portion 53, and the end link 50 is connected to the middle piece 3A by inserting a pin 56 through the connecting holes 524, 534 and the through hole formed in the middle piece 3A.

[0031] The end link 50, provided at the end of the second band 2, is connected to the cover 11 by inserting the pins 422 and 432 of the first shaft member 42 and the second shaft member 43 into the holes 16 of the cover 11, similar to the first embodiment. Also, similar to the first embodiment, the length of the band can be adjusted by operating the operating part 45 to remove the pins 422 and 432 from the holes 16 and insert them into other holes 16.

[0032] [Effects of the fourth embodiment] According to the band of the fourth embodiment, since the end link 50 is composed of two members, a first piece 51 and a second piece 61, the spring bar 40, which is an engaging member with the operating part 45 attached, can be assembled by placing it between the first piece 51 and the second piece 61, thereby improving the ease of assembly of the end link 50.

[0033] Furthermore, since an inclined surface 541 is formed on the connecting portion 54, the first piece 51 and the second piece 61 can be combined by rotating them relative to each other with the spring bar 40 as the axis of rotation, and the end link 50 can be easily assembled by inserting the pin 55 through the fixing holes 523, 613, and 533. Furthermore, since the end link 50 is divided into a first piece 51 and a second piece 61, the first piece 51 and the second piece 61 can be made of different materials, such as metal, ceramic, or resin, thus expanding the design variations.

[0034] [Fifth Embodiment] The fifth embodiment differs from the fourth embodiment in that, as shown in Figures 14 and 15, the band uses an end link 50B and an engaging member, which is a spring bar 40B. The end link 50B is composed of a first link 51B and a second link 61B. The first link 51B is made of metal and includes a first arm 52B, a second arm 53B, and a connecting part 54B. The first arm portion 52B has a first groove portion 521B, a fixing hole 523B, and a connecting hole 524B. The first groove portion 521B is a groove that penetrates the first arm portion 52B in the Y-axis direction and is also open on the upper surface of the first arm portion 52B. The bottom surface of the first groove portion 521B is formed in an arc shape so that the pipe portion 41B of the spring bar 40B can be rotatably supported. The fixing hole 523B and the connecting hole 524B are each formed by penetrating the first arm portion 52B in the Y-axis direction.

[0035] The second arm portion 53B has a second groove portion 531B, a fixing hole 533B, and a connecting hole 534B. The second groove portion 531B, like the first groove portion 521B, penetrates the second arm portion 53B in the Y-axis direction and is also an open groove on the upper surface of the second arm portion 53B. The bottom surface of the second groove portion 531B is formed in an arc shape, similar to the first groove portion 521B. The fixing hole 533B and the connecting hole 534B are each formed by penetrating the second arm portion 53B in the Y-axis direction.

[0036] The connecting portion 54B connects the first arm portion 52B and the second arm portion 53B, similar to the connecting portion 54 in the fourth embodiment, and the side surface of the connecting portion 54B is an inclined surface 541B, similar to the inclined surface 541.

[0037] The second piece 61B of the end link 50B is made of metal and has a recessed groove 611B, a fixing hole 613B, and a retaining groove 615B. The groove 611B is formed to penetrate the second piece 61B in the Y-axis direction and communicates with the retaining groove 615B. That is, the groove 611B is open in the X2 direction. The bottom surface of the groove 611B on the X1 direction side is formed in an arc shape. The fixing hole 613B is formed by penetrating the second piece 61B in the Y-axis direction. The retaining groove 615B is a recessed groove that opens onto the upper surface of the second piece 61B and communicates with the recessed groove portion 611B, and is formed so that the connecting portion 54B can be positioned therein.

[0038] A spring bar 40B, which is an engaging member, is inserted into the groove 611B of the second piece 61B. The spring bar 40B is similar to the spring bar 40 of the first embodiment, but differs in that it has operating parts 45B and 46B at both ends. The spring bar 40B comprises a pipe section 41B, a first shaft member 42B, a second shaft member 43B, and a coil spring (not shown). The pipe section 41B is formed in a cylindrical shape, with elongated holes 411B and 412B formed at both ends in the longitudinal direction. In addition, the left and right ends of the pipe section 41B have smaller diameter openings than the middle section. The first shaft member 42B has the same configuration as the first shaft member 42, so its description is omitted. An operating part 45B protruding from the elongated hole 411B is attached to the first shaft member 42B. The second shaft member 43B has the same configuration as the first shaft member 42B, and an operating part 46B protruding from the elongated hole 412B is attached to the second shaft member 43B. The operating parts 45B and 46B are the same components as the operating part 45, so their description is omitted. The coil spring, like the spring bar 40 in the first embodiment, is positioned within the pipe portion 41B between the first shaft member 42B and the second shaft member 43B. The operating parts 45B and 46B are located at the ends of the elongated holes 411B and 412B. When the operating parts 45B and 46B are slid toward each other to compress the coil spring, the first shaft member 42B and the second shaft member 43B also move toward each other, allowing the pins 422 and 432 of the first shaft member 42B and the second shaft member 43B to be removed from the hole 16.

[0039] Next, the assembly method for the end link 50B will be explained. The pre-assembled spring bar 40B is attached to the recessed groove 611B of the second piece 61B. That is, as shown in Figure 15, the pipe portion 41B of the spring bar 40B is moved from the retaining groove 615B of the second piece 61B to the recessed groove 611B and attached. Next, both ends of the spring bar 40B attached to the second piece 61B are positioned in the first groove 521B and the second groove 531B of the first piece 51B. Then, the first piece 51B and the second piece 61B are rotated relative to each other with the spring bar 40B as the pivot point, and the connecting portion 54B is positioned in the retaining groove 615B. Finally, the pin 55B is inserted through the fixing holes 523B, 613B, and 533B to connect and fix the first piece 51B and the second piece 61B. Furthermore, the middle piece 3A of the second band 2 is positioned between the first arm portion 52B and the second arm portion 53B, and the end link 50B is connected to the middle piece 3A by inserting the pin 56B through the connecting holes 524B, 534B and the through hole formed in the middle piece 3A.

[0040] The end link 50B, provided at the end of the second band 2, is connected to the cover 11 by operating the operating parts 45B and 46B to insert the pins 422 and 432 of the first shaft member 42B and the second shaft member 43B, respectively, into the holes 16 of the cover 11. The length of the band can also be adjusted by operating the operating parts 45B and 46B to remove the pins 422 and 432 of the first shaft member 42B and the second shaft member 43B, respectively, from the holes 16, and then sliding the end link 50B in the X-axis direction to insert the pins 422 and 432 into the other holes 16.

[0041] [Effects of the Fifth Embodiment] According to the band of the fifth embodiment, the end link 50B is composed of two members, a first piece 51B and a second piece 61B, so the same effects as in the fourth embodiment can be achieved and the ease of assembly of the end link 50B can be improved. Since an inclined surface 541B is formed on the connecting portion 54B, the end link 50B can be easily assembled by rotating the first piece 51B and the second piece 61B relative to each other around the spring bar 40B as the axis of rotation, and inserting the pin 55B through the fixing holes 523B, 613B, and 533B, similar to the fourth embodiment.

[0042] Since the spring bar 40B has operating parts 45B and 46B at both ends, both the first shaft member 42B and the second shaft member 43B can be moved by operating the operating parts 45B and 46B, and the spring bar 40B, or end link 50B, can be easily attached to and detached from the cover 11. The first piece 51B has two first recessed grooves 521B and a second recessed groove 531B, and the second piece 61B has a recessed groove 611B that communicates with the retaining groove 615B, so that the spring bar 40B can be easily attached to the first piece 51B and the second piece 61B.

[0043] [Sixth Embodiment] The band of the sixth embodiment differs from that of the fifth embodiment in that it uses an end link 50C and an engaging member, a spring bar 40C, as shown in Figures 16 and 17. The end link 50C is composed of a first link 51C and a second link 61C. The first link 51C is made of metal and includes a first arm 52C, a second arm 53C, and a connecting part 54C.

[0044] The first arm portion 52C and the second arm portion 53C have grooves 521C and 531C formed therein, which penetrate in the Y-axis direction and also open on the upper surfaces of the first arm portion 52C and the second arm portion 53C. In this case, at the ends of the first arm portion 52C and the second arm portion 53C in the X1 direction, the wall portions 525C and 535C that demarcate the grooves 521C and 531C are cut out at both ends in the Y-axis direction. Furthermore, the first arm portion 52C and the second arm portion 53C are formed with fixing holes through which a pin for connecting to the second piece 61C is inserted, and connecting holes through which a pin for connecting to the middle piece 3A is inserted. However, these are the same as in the fourth and fifth embodiments, so their description is omitted. The connecting portion 54C connects the first arm portion 52C and the second arm portion 53C, similar to the connecting portions 54 and 54B in the fourth and fifth embodiments, and the side surface of the connecting portion 54C is inclined.

[0045] The second piece 61C of the end link 50C has the same configuration as the second piece 61B of the fifth embodiment, so its description is omitted. The spring bar 40C, like the spring bar 40B of the fifth embodiment, is constructed with a pipe portion 41C, a first shaft member 42C, a second shaft member 43C, operating portions 45C and 46C, and a coil spring (not shown). The operating portions 45C and 46C are located in the elongated holes 411C and 412C of the pipe portion 41C.

[0046] The assembly method of the end link 50C and the method of attaching it to the second band 2 are the same as in the fifth embodiment, so a description will be omitted. The method of attaching and detaching the end link 50C from the cover 11 is also the same as in the fifth embodiment. That is, in the first state in which the operating parts 45C and 46C of the end link 50C, which is provided at the end of the second band 2, are oriented in the Z1 direction as shown in Figure 16, the pins 422 and 432 of the first shaft member 42C and the second shaft member 43C can be removed from the holes 16 of the cover 11 by moving the operating parts 45C and 46C toward each other in the recessed grooves 521C and 531C, which are partitioned by the wall parts 525C and 535C. Therefore, in this first state, the length of the band can be adjusted by sliding the end link 50C in the X-axis direction relative to the cover 11 and inserting the pins 422 and 432 of the first shaft member 42C and the second shaft member 43C into the other holes 16 of the cover 11.

[0047] Furthermore, after inserting the pins 422 and 432 into the holes 16 of the cover 11, the operating parts 45C and 46C are rotated 90 degrees in the X1 direction to enter the second state, as shown in Figure 17. In this second state, the operating parts 45C and 46C are restricted by the walls 525C and 535C, preventing them from moving toward each other. Therefore, in the second state, the pins 422 and 432 of the first shaft member 42C and the second shaft member 43C are prevented from coming out of the holes 16 of the cover 11. The walls 525C and 535C provided on the end link 50C are restricting parts that restrict the movement of the operating parts 45C and 46C. Furthermore, the holes 16 in the cover 11 should be formed in a position that does not interfere with the button unit 20 even when the operating sections 45C and 46C are in the second state.

[0048] [Effects of the 6th Embodiment] According to the band of the sixth embodiment, the end link 50C is composed of two members, a first piece 51C and a second piece 61C, and two operating parts 45C and 46C are provided on the spring bar 40C, so the same effects and advantages as in the fifth embodiment can be achieved. Furthermore, by cutting out the Y-axis ends of the wall sections 525C and 535C, the operating sections 45C and 46C can be rotated in the X1 direction to enter the second state. As a result, the movement of the operating sections 45C and 46C in the Y-axis direction can be restricted by the restricting wall sections 525C and 535C, preventing the pins 422 and 432 of the first axis member 42C and the second axis member 43C from unintentionally coming out of the holes 16 of the cover 11. Moreover, switching between the first and second states is as simple as rotating the operating sections 45C and 46C, making it easy for the user to operate.

[0049] [Seventh Embodiment] The seventh embodiment differs from the fifth and sixth embodiments in that it uses an end link 50D and an engaging member, a spring bar 40D, as shown in Figures 18 and 19. In particular, it differs in that grooves are formed in the end link 50D to restrict the rotational movement of the operating portions 45D and 46D of the spring bar 40D. The end link 50D is composed of a first link 51D and a second link 61D. The first link 51D is made of metal and includes a first arm 52D, a second arm 53D, and a connecting part 54D.

[0050] The first arm portion 52D is provided with a first through hole 521D, a first guide groove 522D, a first regulating portion 526D, and a first engagement groove 527D. The first through-hole 521D is formed by penetrating the first arm portion 52D in the Y-axis direction, and the pipe portion 41D of the spring bar 40D is inserted into it. The first guide groove 522D communicates with the first through-hole 521D and opens onto the upper surface of the first arm portion 52D. The first engagement groove 527D communicates with the first through-hole 521D and opens onto the side surface of the first arm portion 52D in the X1 direction. The first restricting portion 526D demarcates the first guide groove 522D and the first engagement groove 527D, and restricts the rotational movement of the operating portion 45D, which is biased by a coil spring and has the pin 422 of the first shaft member 42D inserted into the hole 16, from one of the first guide groove 522D and the first engagement groove 527D to the other. A space is provided between the first regulating section 526D and the second piece 61D in which the operating section 45D can move. When the operating section 45D is moved in the Y2 direction, it is configured to be able to rotate and move from one of the first guide groove 522D and the first engagement groove 527D to the other.

[0051] The second arm portion 53D includes a second through hole (not shown), a second guide groove 532D, a second restricting portion 536D, and a second engagement groove 537D. Since these configurations are the same as those of the first arm portion 52D, their description is omitted. Furthermore, the first arm portion 52D and the second arm portion 53D are formed with fixing holes through which a pin for connecting to the second piece 61D is inserted, and connecting holes through which a pin for connecting to the middle piece 3A is inserted. However, these are the same as in the fourth, fifth, and sixth embodiments, so their description is omitted. The connecting portion 54D connects the first arm portion 52D and the second arm portion 53D, similar to the connecting portions 54, 54B, and 54C of the fourth, fifth, and sixth embodiments, and the side surface of the connecting portion 54D is inclined.

[0052] The second piece 61D of the end link 50D has the same configuration as the second pieces 61B and 61C of the fifth and sixth embodiments, so its description is omitted. The spring bar 40D, like the spring bars 40B and 40C of the fifth and sixth embodiments, comprises a pipe portion 41D, a first shaft member 42D, a second shaft member 43D, operating portions 45D and 46D, and a coil spring (not shown), with the operating portions 45D and 46D positioned in the elongated holes 411D and 412D of the pipe portion 41D.

[0053] The assembly method of the end link 50D and the method of attaching it to the second band 2 are the same as in the fifth and sixth embodiments, so a description will be omitted. Also, the method of attaching and detaching the end link 50D from the cover 11 is the same as in the fifth embodiment. That is, in the first state where the operating parts 45D and 46D of the end link 50D, which is provided at the end of the second band 2, are oriented in the Z1 direction as shown in Figure 18, the pins 422 and 432 of the first shaft member 42D and the second shaft member 43D can be removed from the holes 16 of the cover 11 by moving the operating parts 45D and 46D toward each other along the first guide groove 522D and the second guide groove 532D. Therefore, in this state, the length of the band can be adjusted by sliding the end link 50D in the X-axis direction relative to the cover 11 and inserting the pins 422 and 432 into the other holes 16 of the cover 11.

[0054] Furthermore, after inserting the pins 422 and 432 of the first shaft member 42D and the second shaft member 43D into the holes 16 of the cover 11, the operating parts 45D and 46D are moved toward each other until they are in a position where they do not interfere with the first restricting part 526D and the second restricting part 536D, and the operating parts 45D and 46D are rotated 90 degrees in the X1 direction, as shown in Figure 19. Next, when the operation of the operating parts 45D and 46D is released, the first shaft member 42D and the second shaft member 43D move toward the first side portion 131 and the second side portion 132 of the cover 11 due to the biasing force of the coil spring. As shown in Figure 19, in the second state where the operating parts 45D and 46D are facing in the X1 direction, the operating parts 45D and 46D engage with the first engagement groove 527D and the second engagement groove 537D, respectively, thereby restricting the rotation of the operating parts 45D and 46D. Furthermore, in the second state, the operating parts 45D and 46D are positioned between the first side portion 131 and the second side portion 132 of the cover 11, thus preventing the user from unintentionally moving the operating parts 45D and 46D. Furthermore, when the operating parts 45D and 46D are moved to a position where they do not interfere with the first restricting part 526D and the second restricting part 536D, the lengths of the first restricting part 526D and the second restricting part 536D in the Y-axis direction are set so that the tips of the pins 422 and 432 remain inserted into the hole 16 without completely dislodging from it.

[0055] [Effects of the 7th Embodiment] According to the band of the seventh embodiment, the end link 50D is composed of two members, a first piece 51D and a second piece 61D, and two operating parts 45D and 46D are provided on the spring bar 40D, so that the same effects and advantages as in the fifth and sixth embodiments can be achieved. Furthermore, since the operating units 45D and 46D can be rotated to position them in a first state and a second state, the user can select between a first state, in which the operating units 45D and 46D can be moved in the Y-axis direction to easily insert or remove the pins 422 and 432 of the first axis member 42D and the second axis member 43D into or out of the holes 16 of the cover 11, and a second state, in which unintended movement of the operating units 45D and 46D in the Y-axis direction is prevented.

[0056] [Eighth Embodiment] The eighth embodiment differs from the fourth embodiment in that it uses an end link 50E and an engaging member, a spring bar 40E, as shown in Figures 20 and 21. In particular, it differs in that a groove is formed in the end link 50E to hold the operating portion 45E of the spring bar 40E when it is moved in the rotational direction. The end link 50E differs from the end link 50 of the fourth embodiment in that the first recessed groove 522E is formed in a planar L-shape, but the other configurations are the same. That is, the end link 50E comprises a first piece 51E and a second piece 61E, the first piece 51E being made of metal material and comprising a first arm 52E, a second arm 53E, and a connecting portion 54E.

[0057] The first arm portion 52E has the same configuration as the first arm portion 52 of the end link 50, and has a first through hole, a fixing hole, and a connecting hole (not shown). The first arm portion 52E also has a first recessed groove portion 522E that opens on the upper surface of the first arm portion 52 and communicates with the first through hole 521. This first recessed groove portion 522E is formed in a planar L-shape by connecting a groove portion along the Y-axis and a groove portion along the X-axis.

[0058] The second arm portion 53E and the connecting portion 54E have the same configuration as the second arm portion 53 and the connecting portion 54 of the end link 50, so their description is omitted.

[0059] The second piece 61E of the end link 50E has the same configuration as the second piece 61 of the end link 50, and has a groove portion 612E that is continuous with the first groove portion 522E. A spring bar 40E, which is an engaging member, is inserted into the through hole of the second piece 61E. The structure of the spring bar 40E is the same as in the first and fourth embodiments, so its description is omitted.

[0060] The clasp body 10E of the eighth embodiment, like the clasp body 10 of the first embodiment, comprises a cover 11E and a button unit 20, the cover 11E comprising a bottom portion 12E, a first side portion 131E, and a second side portion 132E. The first side portion 131E and the second side portion 132E have holes 15E into which a spring bar 93 connecting the folding members is inserted, and holes 16E into which each pin of the spring bar 40E is engaged. The holes 16E are blind holes that do not penetrate the first side portion 131E and the second side portion 132E, and the holes 16E are not exposed on the surfaces of the first side portion 131E and the second side portion 132E.

[0061] The assembly method of the end link 50E and the method of attaching it to the second band 2 are the same as in the fourth embodiment, so the explanation is omitted. Also, the method of attaching and detaching the end link 50E from the cover 11 and adjusting the band length is the same as in the fourth embodiment, so the explanation is omitted.

[0062] Furthermore, when the operating portion 45E of the spring bar 40E is biased in the Y1 direction by a coil spring, and the pins, which are the engaging portions of the first and second shaft members (not shown), are inserted into the holes 16E of the cover 11E, and the operating portion 45E is rotated in the X2 direction, a second state is reached in which the operating portion 45E is housed within the first groove 522E of the end link 50E, as shown in Figure 21. In this second state, the operating portion 45E is housed within the first groove 522E and its movement in the Y2 direction is restricted, preventing the operating portion 45E from moving unintentionally and causing the pins of the spring bar 40E to dislodge from the holes 16E. Therefore, the first groove 522E of the end link 50E constitutes a restricting portion that restricts the movement of the operating portion 45E in the Y2 direction, thereby reliably preventing the pins from dislodgeing from the holes 16E.

[0063] [Effects of the 8th Embodiment] According to the band of the eighth embodiment, since the end link 50E is composed of two members, the first piece 51E and the second piece 61E, it can achieve the same effects as the fourth embodiment. Furthermore, by forming a first groove 522E in the end link 50E, the user can select between a first state in which the operating part 45E can move in the Y-axis direction and a second state in which movement in the Y-axis direction is restricted.

[0064] In the second state, the operating section 45E hardly protrudes from the upper surface of the end link 50E, so it can be superimposed planarly on the outer plate 92 of the folding member 9. Therefore, when the wristwatch 100 is worn on the user's wrist, the folding member 9 and the operating section 45E can be superimposed in plan view, and there is no need to position the operating section 45E on the side where it does not overlap with the folding member 9 in plan view, so it can be used with narrow bands.

[0065] [Differentiation] The spring bar, which is the engaging member, is not limited to the configuration of the embodiment described above. For example, flanges may be formed on the pins 422 and 432, and these flanges may be brought into contact with the inner surfaces of the first side portion 131 and the second side portion 132 of the cover 11. In this case, since the flanges come into contact with the first side portion 131 and the second side portion 132, the protrusion dimensions of the pins 422 and 432 inserted into the hole 16 can be limited to a certain dimension or less, thereby reliably preventing the pins 422 and 432 from protruding from the hole 16. Furthermore, the engaging member is not limited to a spring bar, nor is the engaging portion limited to a round pin. That is, the engaging member only needs to have an engaging portion that can engage with the hole 16 of the cover 11, and an operating portion that moves this engaging portion between an engaged position in the hole 16 and an unengaged position away from the hole 16. The shape of the hole in the cover 11 may be a rectangular opening, and the engaging portion may be configured to match the shape of the hole.

[0066] The method of assembling the first pieces 51, 51B, 51C, 51D, 51E and the second pieces 61, 61B, 61C, 61D, 61E of the end links 50, 50B, 50C, 50D, 50E is not limited to the method of assembling by relatively rotating the first pieces 51, 51B, 51C, 51D, 51E and the second pieces 61, 61B, 61C, 61D, 61E as described in the above embodiment. For example, the second pieces 61, 61B, 61C, 61D, 61E may be assembled by moving them in the Z-axis direction relative to the first pieces 51, 51B, 51C, 51D, 51E. The shape of the operating section is not limited to the above embodiment. For example, the operating section is not limited to an operating knob that is substantially spherical, but may be a flat plate with a planar elliptical shape.

[0067] The clasp is not limited to a three-fold type with a folding member; any clasp that connects the first band 1 and the second band 2 is acceptable. Furthermore, the number of holes 16 formed on each side of the clasp cover is not limited to two as in the embodiments described above, but may be three or more. If three or more holes are formed, the band length can be adjusted in three or more steps. The material of the first links 51, 51B, 51C, 51D, 51E and the second links 61, 61B, 61C, 61D, 61E of the end links 30, 30A, 30B and 50, 50B, 50C, 50D, 50E is not limited to metal, but may be ceramic, synthetic resin, etc. Similarly, the material of the links 3 of the first band 1 and second band 2 is not limited to metal, but may be ceramic, synthetic resin, etc. Furthermore, the first links 51, 51B, 51C, 51D, 51E and the second links 61, 61B, 61C, 61D, 61E, as well as the middle links 3A and outer links 3B, may be made of the same material or different materials, and the design variations can be expanded by combining each material.

[0068] [Summary of this disclosure] The band of the present disclosure comprises a first band, a second band, and a clasp connecting the first band and the second band, wherein the clasp has a cover having a bottom portion and a side portion, the second band has an end link provided at the end on the clasp side and an engaging member held by the end link and engaging with the cover, the side portion has a plurality of holes along the longitudinal direction of the second band, and the engaging member has an engaging portion that can engage with the holes in the side portion and an operating portion that moves the engaging portion between an engaged position in the width direction of the second band and a disengaged position that is disengaged from the holes. By operating the operating part of the engaging member held in the end link, the engaging portion of the engaging member is moved to the disengaged position, and the engaging portion is engaged with a selected hole from among the multiple holes formed in the cover, the engagement position between the cover and the end link is changed, thereby adjusting the length of the band. Therefore, the user can easily adjust the band length by operating the operating part, and there is no need to use a special adjustment tool, so the engaging portion of the engaging member can be easily attached to and detached from the cover, and the band length adjustment operation can be easily performed. This eliminates the need for specialized adjustment tools and reduces the number of parts, thus lowering manufacturing costs. Furthermore, the simple structure for adjusting the band length makes it easy to manufacture.

[0069] In the band of this disclosure, it is preferable to have a restricting portion that prevents the operating portion from moving from the engaged position to the disengaged position. Because it has a restricting mechanism that prevents the operating part from moving from the engaged position to the disengaged position, it is possible to reliably prevent the end link and cover from becoming disengaged while the band is in use.

[0070] In the band of the present disclosure, the clasp has a clasp body and a folding member connecting the clasp body and the first band, the restricting portion is provided on the folding member, and the operating portion is preferably restricted from moving by the folding member when the clasp is closed. Since the restricting part is constructed with a folding component, there is no need to add any additional parts to make up the restricting part, thus reducing costs. Furthermore, when the user is wearing the band, the clasp is closed and the folding component is also folded, so the engaging component will not come off the cover while the band is in use, reliably preventing the engagement from unintentionally disengaging and the band from falling off. In addition, since the operation of closing the clasp is performed when the band is being worn, no special operation is required to restrict the operating part.

[0071] In the band of the present disclosure, the restricting portion is preferably provided on the end link, and the engaging member is preferably rotatably provided so as to be between a restricted position in which the operating portion is restricted by the restricting portion and an unrestricted position in which the operating portion is not restricted by the restricting portion. Since the restricting section is constructed with end links, there is no need to add any additional components to make up the restricting section, thus reducing costs. Furthermore, by rotating the operating part of the engaging member to move it from the unrestricted position to the restricted position, it is possible to reliably prevent the engaging member from coming off the cover. In addition, by rotating the operating part of the engaging member to move it from the restricted position to the unrestricted position, it is also possible to reliably operate the operating part to remove the engaging member from the cover and adjust the band length.

[0072] In the band of the present disclosure, the clasp comprises a clasp body and a folding member connecting the clasp body and the first band, and in a side view with the clasp closed, the length from the central axis of the engaging portion engaged with the hole in the cover to the tip of the operating portion is preferably less than or equal to the length from the central axis to the surface of the folding member. According to the band of this disclosure, when the clasp is closed, the operating part does not protrude from the surface of the folding member, i.e., towards the user's wrist, thus preventing the operating part from hitting the user's wrist and impairing the wearing comfort.

[0073] In the band of this disclosure, it is preferable that the length from the central axis of the engaging portion engaged with the hole in the cover to the tip of the operating portion is less than or equal to the length from the central axis to the free end in the thickness direction of the side portion. According to the band of this disclosure, the operating section is hidden by the cover when viewed from the side, thus improving the appearance.

[0074] In the band of this disclosure, it is preferable that the length of the engaging portion is shorter than the thickness of the side portion. The band of this disclosure prevents the engaging portion from protruding outside the cover, thereby improving the appearance of the cover.

[0075] In the band of this disclosure, it is preferable that the holes provided in the side portion are blind holes that do not penetrate the side portion. According to the band of this disclosure, since the cover has blind holes rather than through holes, multiple holes are not exposed on the outside of the cover, improving the appearance of the cover. In addition, even without through holes in the cover, the engaging part can be disengaged from the holes in the cover by operating the operating part.

[0076] In the band of the present disclosure, the end link is preferably configured to include a first piece and a second piece, and the engaging member is preferably held by the first piece and the second piece. According to the band of this disclosure, since the end link is composed of a first piece and a second piece, the engaging member with the operating part attached can be assembled with the operating part positioned between the first and second pieces, thereby improving ease of assembly.

[0077] In the band of this disclosure, it is preferable that the operating portion is provided at both ends of the engaging member. According to the band of this disclosure, since the engaging portions at both ends of the engaging member can be moved by each operating portion, the operation of attaching and detaching the engaging member from the cover can be made easier compared to the case where there is only one operating portion.

[0078] In the band of the present disclosure, it is preferable that the operating portion is movably provided between a first state in which it is facing in a direction intersecting the longitudinal direction of the second band and a second state in which it is facing in a direction along the longitudinal direction of the second band. According to the band of this disclosure, the operating part can be moved to a first state and a second state by rotating the operating part around the axis of the engaging member. In the second state, the operating part is oriented along the longitudinal direction of the second band, making it more difficult to operate than in the first state. This reduces the risk of the user accidentally operating the operating part. In addition, in the second state, the operating part does not protrude in the thickness direction of the second band, and the operating part can be moved to a position that does not interfere with the folding member, so the folding member and the operating part can be in a state where they overlap in a plan view, and there is no need to position the operating part on the side where it does not overlap with the folding member in a plan view, so it can be used for narrow bands as well.

[0079] In the band of the present disclosure, the operating portion is preferably positioned in a groove provided in the end link in the second state. According to the band of this disclosure, since the operating part is positioned within the groove of the end link, the user cannot accidentally touch the operating part, and unintended force applied to the operating part prevents the end link from unintentionally detaching from the cover.

[0080] In the band of the present disclosure, it is preferable that the operating portion is movable between the engaged position and the disengaged position in the first state, and restricted from moving from the engaged position to the disengaged position in the second state. According to the band of this disclosure, in the second state, the operating part is restricted from moving to the disengaged position, so even if the user accidentally touches the operating part, the second band can be reliably prevented from coming off the clasp.

[0081] The watch of this disclosure is characterized by having the aforementioned band. According to the watch of this disclosure, since it is equipped with the aforementioned band, the user can easily adjust the length of the band. [Explanation of Symbols]

[0082] 1...First band, 2...Second band, 3...Link, 3A...Middle link, 3B...Outer link, 5...Clasp, 9...Folding part, 10...Clasp body, 10A...Clasp body, 10E...Clasp body, 11...Cover, 11A...Cover, 11E...Cover, 12...Bottom part, 12E...Bottom part, 15...Hole, 15E...Hole, 16...Hole, 16E...Hole, 20...Button unit, 30...End link, 30 A...end link, 30B...end link, 40...spring bar, 40B...spring bar, 40C...spring bar, 40D...spring bar, 40E...spring bar, 42...first shaft member, 42B...first shaft member, 42C...first shaft member, 42D...first shaft member, 43...second shaft member, 43B...second shaft member, 43C...second shaft member, 43D...second shaft member, 44...coil spring, 45...operating part, 45 B...Operating section, 45C...Operating section, 45D...Operating section, 45E...Operating section, 46B...Operating section, 46C...Operating section, 46D...Operating section, 50...End link, 50B...End link, 50C...End link, 50D...End link, 50E...End link, 51...First piece, 51B...First piece, 51C...First piece, 51D...First piece, 51E...First piece, 61...Second piece, 6 1B...Second piece, 61C...Second piece, 61D...Second piece, 61E...Second piece, 91...Middle plate, 92...Outer plate, 100...Wristwatch, 131...First side section, 131A...First side section, 131E...First side section, 132...Second side section, 132E...Second side section, 421...Shaft section, 422...Pin, 431...Shaft section, 432...Pin, 921...Side, 922...Surface, 1311...Free end.

Claims

1. First band and, The second band, The device comprises a clasp connecting the first band and the second band, The clasp comprises a clasp body and a folding member connecting the clasp body and the first band. The aforementioned clasp body has a cover comprising a bottom portion and a side portion. The second band has an end link provided at the end on the clasp side and an engaging member that is held by the end link and engages with the cover. The aforementioned side portion is provided with a plurality of holes along the longitudinal direction of the second band. The aforementioned engaging member is An engaging portion that can engage with the hole in the side portion, The engaging portion has an operating portion for moving it between an engaged position in the width direction of the second band and a disengaged position where it is disengaged from the hole. When the folding member is folded and the clasp is closed, the operating part is restricted from moving from the engaged position to the disengaged position by the side surface of the folding member. A band characterized by these features.

2. In the band described in claim 1, In a side view with the clasp closed, the length from the central axis of the engaging portion engaged with the hole in the cover to the tip of the operating portion is less than or equal to the length from the central axis to the surface of the folding member. A band characterized by these features.

3. In the band described in claim 1, The length from the central axis of the engaging portion engaged with the hole in the cover to the tip of the operating portion is less than or equal to the length from the central axis to the free end in the thickness direction of the side portion. A band characterized by these features.

4. In the band described in claim 1, The length of the engagement portion is shorter than the thickness of the side portion. A band characterized by these features.

5. In the band described in claim 1, The holes provided in the side portion are blind holes that do not penetrate the side portion. A band characterized by these features.

6. In the band described in claim 1, The end link is composed of a first piece and a second piece, The engaging member is held by the first piece and the second piece. A band characterized by these features.

7. In the band described in claim 1, The operating parts are provided at both ends of the engaging member. A band characterized by these features.

8. A watch characterized by comprising a band as described in any one of claims 1 to 7.

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