Band fixing member, band, and watch

Abstract

The band can be securely fastened after it has been attached. [Solution] The band fixing member 50 comprises a first fixing member 5 having a first projection 511 and a second fixing member 6 having a second projection (connecting side projection 63, central side projection 64). The first projection 511 bites into one surface of the band body 1 interposed between the first projection 511 and the second projection (connecting side projection 63, central side projection 64), and the second projection (connecting side projection 63, central side projection 64) bites into the other surface, which is the opposite side of the first surface, thereby fixing the band body 1.

Description

Technical Field

[0001] The present invention relates to a band fixing member, a band, and a watch.

Background Art

[0002] Conventionally, as a configuration for attaching and detaching a band to a device such as a watch, an opening and closing plate that rotates by manual operation with a band (band body) passed between an upper plate and the opening and closing plate is rotated, and a locking claw of the opening and closing plate is bitten into the band (band body) to lock the band. A configuration is known (see, for example, Patent Document 1). Thereby, the band can be exchanged and the length can be adjusted without using a jig.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above configuration, the locking claw bites only into one side of the band (band body). For this reason, there is a problem that the fixing of the band is insufficient.

[0005] The present invention is for improving and solving the problems in such a situation, and provides a band fixing member, a band, and a watch that can securely fix the band after attachment of the band.

Means for Solving the Problems

[0006] To solve the aforementioned problems, the band fixing member according to the present invention comprises a first fixing member having a first projection and a second fixing member having a second projection, wherein the first projection bites into one surface of the band body interposed between the first projection and the second projection, and the second projection bites into the other surface, which is the opposite surface of the first surface, thereby fixing the band body. [Effects of the Invention]

[0007] According to the present invention, the band can be securely fixed after it has been attached. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the appearance of a watch to which a band equipped with a band fixing member according to this embodiment is attached, as seen from the viewing side. [Figure 2] This is an exploded perspective view of the main part of the band fixing member according to this embodiment. [Figure 3] Figure 2 is a perspective view of the second fixing member as seen from the inside. [Figure 4] Figure 2 is a perspective view of the main parts, showing only the ends of the rotation axis, with the central part omitted. [Figure 5] This is a plan view of the main part of a watch to which a band equipped with a band fixing member according to this embodiment is attached, as seen from the viewing side at the 6 o'clock position. [Figure 6] Figure 5 is a side view of the clock. [Figure 7] This is a cross-sectional view of the main part of the band fixing member according to this embodiment, showing the torsion spring and its surrounding area. [Figure 8](A) is a cross-sectional view of the main part along line AA shown in Figure 5, and is an explanatory diagram of operation showing the state in which the second fixing member is rotated upward. (B) is a cross-sectional view of the main part along line AA shown in Figure 5, and is an explanatory diagram of operation showing the state in which the second fixing member has rotated further in the band direction from the state shown in (A) and has reached its lowest position. (C) is a cross-sectional view of the main part along line CC shown in Figure 5, and is an explanatory diagram of operation showing the state in which the second fixing member is rotated upward. (D) is a cross-sectional view of the main part along line DD shown in Figure 5, and is an explanatory diagram of operation showing the state in which the second fixing member is rotated upward. (E) is a cross-sectional view of the main part along line DD shown in Figure 5, and is an explanatory diagram of operation showing the state in which the second fixing member has rotated further in the band direction from the state shown in (D). (F) is a cross-sectional view of the main part along line DD shown in Figure 5, and is an explanatory diagram of operation showing the state in which the second fixing member has rotated further in the band direction from the state shown in (D) and has reached its lowest position. (G) is a cross-sectional view of the main part along the GG line shown in Figure 5, and is an explanatory diagram of the operation showing the state in which the second fixing member has rotated in the band direction and has lowered completely. [Figure 9] This is a perspective view showing the appearance of a watch with a band equipped with a band fixing member according to this embodiment, as seen from the viewing side, and it shows the band end locking member detached. [Figure 10] This is a perspective view showing the appearance of a watch to which a band equipped with a band fixing member according to this embodiment has been attached, as seen from the viewing side, and showing the state in which the band end locking member is locked to the band body. [Figure 11] This is a magnified perspective view of the main part, showing an enlarged view of section XI shown in Figure 10. [Figure 12] Figure 10 is a plan view of the band end locking member as seen from the inside of the band. [Figure 13] This is a cross-sectional view of the main part along the line XIII-XIII shown in Figure 12. [Figure 14] This is a side view of a key part showing a modified example of a band fixing member, and is an explanatory diagram of the operation showing the second fixing member rotated upwards. [Figure 15]This is a side view of a key part showing a modified example of the band fixing member, and is an explanatory diagram of the operation showing the second fixing member rotating further in the band direction from the state shown in Figure 14 and lowering completely. [Figure 16] Figure 15 is a cross-sectional view of the main part of the band fixing member in one modified example, showing the state in which the second fixing member is in the process of rotating in the band direction. [Figure 17] This is a magnified view of the main part, showing an enlarged version of section XVII shown in Figure 16. [Figure 18] Figure 15 shows a cross-sectional view of the main section along the line XVIII-XVIII. [Figure 19] This is a magnified view of the main part, showing an enlarged version of section XIX shown in Figure 18. [Modes for carrying out the invention]

[0009] Referring to Figures 1 to 13, an embodiment of the band fixing member 50, a band 1 equipped with the band fixing member 50, and a watch 100 according to the present invention will be described. The band 1 according to the embodiment is a band provided on a wristwatch (hereinafter simply referred to as watch 100) worn on the wrist, and the following embodiment illustrates a case in which the band fixing member 50 is applied to the band 1. Although the embodiments described below are subject to various technically preferred limitations for carrying out the present invention, the scope of the present invention is not limited to the following embodiments and illustrated examples.

[0010] As shown in FIG. 1, the clock 100 according to the embodiment includes a band 1 according to the embodiment and a device body 2 to which the band 1 is attached. The band 1 includes at least a band body 11 and a band fixing member 50. Further, the band 1 of the embodiment includes a band end locking member 7 for locking the free end side of the band body 11. The band body 11 is a long strip-shaped member and is formed of various resin materials and the like that are not easily deteriorated even when the first protrusion 511 and the second protrusions (the connection-side protrusion 63 and the center-side protrusion 64) described later repeatedly bite in. For example, nylon is excellent in stretchability, cushioning properties, etc., and is preferable as a material for forming the band body 11. Note that the material for forming the band body 11 is not limited to this, and may be, for example, highly flexible silicone or the like. The band fixing member 50 and the band end locking member 7 will be described in detail later.

[0011] The main body 2 of the machine includes an exterior case 21 formed of, for example, various hard resin materials, and a clock module (not shown) and the like are housed inside the exterior case 21. The material forming the exterior case 21 is not particularly limited, and it may be formed of various metal materials such as titanium, stainless steel (SUS), aluminum, and the like. On the outer surface of the exterior case 21, at the 12 o'clock side and the 6 o'clock side of the analog clock, there are provided band attachment portions 22 to which the band 1 is attached. Hereinafter, the band attachment portion provided at the 12 o'clock side is referred to as 22a, and the band attachment portion provided at the 6 o'clock side is referred to as 22b. When there is no particular distinction between the 12 o'clock side and the 6 o'clock side, it is simply referred to as the band attachment portion 22. The band attachment portion 22 is a lug having a pair of convex portions protruding from the outer surface of the exterior case 21, and a concave portion 221 is formed between the pair of convex portions. A shaft hole corresponding to the space between the pair of convex portions is formed in the band attachment portion 22. One end side of the band 1 (band main body 11) is locked to the band attachment portion 22a on the 12 o'clock side through a spring bar (not shown). The spring bar is not particularly limited. For example, the spring bar may have a slide lever on its side surface, and by manually operating the slide lever, the spring inside the spring bar can be compressed and removed without a dedicated tool, such as a slide-type spring bar. In the embodiment, at the band attachment portion 22a on the 12 o'clock side, the band 1 is not detached unless the band 1 itself needs to be replaced.

[0012] In contrast, a band fixing member 50 according to the embodiment is attached to the band attachment portion 22b on the 6 o'clock side. As shown in FIG. 2 and the like, the band fixing member 50 includes a first fixing member 5 and a second fixing member 6. Both the first fixing member 5 and the second fixing member 6 constituting the band fixing member 50 are formed of a hard resin such as engineering plastic. The material forming the band fixing member 50 is not particularly limited, but it is preferably one having wear resistance and slidability that can withstand repeated use, and for example, it is preferably formed of a resin such as polyacetal (POM) that is particularly excellent in slipperiness.

[0013] The first fixing member 5 has an insertion hole 501 (see, for example, Figure 8(D)) through which the band body 11 is inserted, and a first projection 511. More specifically, the first fixing member 5 includes a rotating shaft 51 and a frame member 52 to which the rotating shaft 51 is attached. The rotating shaft 51 is a hollow, pipe-shaped member that is elongated in the width direction of the band body 11, and the first projection 511 is formed on the surface of the rotating shaft 51 along its longitudinal direction (the width direction of the band body 11). The shape of the first projection 511 is not particularly limited, but it is preferable that the first projection 511 is composed of a plurality of small protrusions provided along the width direction of the band 1 (band body 11). For example, in the embodiment, the first projection 511 is shaped like a pincushion, as shown in Figure 2, etc. Because the first projection 511 is composed of multiple small protrusions, the contact area with the surface of the band body 11 when it comes into contact with the band body 11 is smaller than if it were a single continuous protrusion, making it easier to pierce the surface of the band body 11 when it comes into contact with it.

[0014] The frame member 52 has a case mounting portion 53 at one end that fits into a recess 221 between the lugs of the band mounting portion 22b of the outer case 21, and a locking arm portion 54 at the other end to which the rotating shaft 51 is attached. The rotating shaft 51 is rotatably attached to the locking arm portion 54 of the frame member 52 via a spring bar 512. Specifically, the locking arm portion 54 of the frame member 52 is provided with an axial hole 541 for locking the spring bar 512, and the rotating shaft 51 is attached to the frame member 52 by locking the spring bar 512, which is inserted into the rotating shaft 51, into the axial hole 541. The axial hole 541 may be a through hole or a recess that does not go through. With the spring bar 512 locked to the locking arm 54, there are gaps between the case mounting portion 53 and the rotating shaft 51, and between the rotating shaft 51 and the second fixing member 6 (described later), and these gaps become the insertion holes 501 through which the band body 11 is inserted (see Figure 8(D), etc.).

[0015] In this embodiment, the first fixing member 5 has a biasing member that biases the rotation shaft 51 so that the first projection 511 does not come into contact with the band body 11. The biasing member can be any member that can restrict the direction of the rotation shaft 51, and its specific configuration is not limited, but in this embodiment, a torsion spring 55 is used as the biasing member (see Figures 2 and 7, etc.). The torsion spring 55 as the biasing member is provided, for example, on one end of the rotation shaft 51. For example, as shown in Figure 7, an arm locking groove 513 is formed at the end of the rotation shaft 51 on the side where the torsion spring 55 is provided, into which one spring arm 551 of the torsion spring 55 is locked. In addition, an arm locking hole 542 is formed in the locking arm portion 54 of the frame member 52 at a position corresponding to the other spring arm 551 of the torsion spring 55. The arm locking hole 542 may be a through hole or a recess that does not go through. The torsion spring 55 biases the rotation shaft 51 in a direction in which the first projection 511 does not come into contact with the band body 11 (for example, the direction indicated by the arrow in Figure 8(C)) by engaging the spring arm 551 of the torsion spring 55 with the arm locking groove 513 of the rotation shaft 51 and the arm locking hole 542 of the locking arm portion 54, respectively. Note that each spring arm 551 of the torsion spring 55 only needs to be engaged with the rotation shaft 51 and the locking arm portion 54, and the position in which each spring arm 551 is engaged is not limited to the illustrated example.

[0016] Furthermore, the first fixing member 5 has a rotation restricting section that limits the rotatable range of the rotating shaft 51. In this embodiment, as shown in Figures 2 and 4, abutment notches 514 are formed on both ends of the rotating shaft 51. In addition, abutment walls 543 are formed on the locking arm portion 54 of the frame member 52 against which the notches 514 abut. When the rotating shaft 51 rotates around its axis, it will stop rotating when it hits the abutment walls 543, thereby preventing the rotating shaft 51 from rotating too much (see Figure 8(G)). In other words, in this embodiment, the rotation restricting section is formed by the notches 514 and the abutment walls 543, and the rotatable range of the rotating shaft 51 is limited to the range until the notches 514 abut against the abutment walls 543. When removing band 1 or adjusting the band length, if the first projection 511 is tilted too far outward or inward, there is a risk that the band body 11 may get caught in the gap, the first projection 511 may unintentionally dig into the band body 11 and obstruct its movement, or the first projection 511 may dig in too deeply and become impossible to remove. In this regard, by providing a rotation restricting part, it is possible to prevent the first projection 511 from tilting too far.

[0017] The case mounting portion 53 of the frame member 52 is formed to a width that fits into the recess 221 between the lugs of the band mounting portion 22b, and an axial hole 531 is provided communicating in the band width direction. The approximate center of the case mounting portion 53 in the width direction is a notch 532, into which the connecting projection 61 of the second fixing member 6, described later, is fitted. An axial hole 61a is formed within the connecting projection 61, which communicates with the axial hole 531 formed in the case mounting portion 53 when fitted into the notch 532. Each protruding portion of the band mounting portion 22b has a shaft locking hole (not shown) formed at a position corresponding to the shaft hole 531 of the case mounting portion 53 and the shaft hole 61a of the connecting projection 61. When the case mounting portion 53 of the frame member 52 and the connecting projection 61 of the second fixing member 6 are fitted into the recess 221 between the lugs of the band mounting portion 22b, the positions of the shaft locking hole of the band mounting portion 22b, the shaft hole 531 of the case mounting portion 53 of the frame member 52, and the shaft hole 61a of the connecting projection 61 of the second fixing member 6 correspond to each other and communicate, and the frame member 52 of the first fixing member 5 and the connecting projection 61 of the second fixing member 6 of the band fixing member 50 are locked to the outer case 11 by a single spring bar 58. The type and shape of the spring bar 58 that locks the band fixing member 50 to the outer case 21 are not particularly limited. For example, the spring bar used to secure the band 1 (band body 11) to the band attachment portion 22a on the 12 o'clock side may be a sliding spring bar as described above.

[0018] In this embodiment, the second fixing member 6 has a connecting projection 61 on one longitudinal end of the band 1 (band body 11) and a cover portion 62 connected to the connecting projection 61 and covering the first fixing member 5. When the connecting projection 61 of the second fixing member 6 is engaged with the band mounting portion 22b together with the case mounting portion 53 of the frame member 52, the second fixing member 6 becomes rotatable about the spring bar 58 as the pivot point. With the band body 11 inserted through the insertion hole 501, the band body 11 is sandwiched between the first fixing member 5 and the second fixing member 6 by rotating the second fixing member 6 toward the band body 11, thereby fixing it in place (see, for example, Figures 8(A) and 8(B), etc.). In other words, as shown in Figure 3, the inner surface of the second fixing member 6 is provided with a second projection: a connecting side projection 63 located near the connecting projection 61, and a central side projection 64 located approximately in the center of the band 1 (band body 11) in the longitudinal direction and formed to be elongated in the width direction of the band 1 (band body 11). When the band body 11 is inserted through the insertion hole 501, rotating the second fixing member 6 toward the band body 11 causes the first projection 511 of the first fixing member 5 and the second projection (in this embodiment, the connecting side projection 63 and the central side projection 64) of the second fixing member 6 to bite into the band body 11 from both sides, resulting in a state where the band body 11 cannot be removed (band fixed state).

[0019] As shown in Figure 3, the connecting side projection 63 and the central side projection 64 are elongated in the width direction of the band 1 (band body 11) and are arranged substantially parallel to each other. The shape of the connecting side projection 63 and the central side projection 64 is not particularly limited, but it is preferable that they be protruding parts with an acute angle at the tip, such as a roughly triangular cross-section as shown in Figure 8(E), etc. (see Figure 3, etc.). The connecting side projection 63 and the central side projection 64 may not be a single continuous protrusion, but may be composed of multiple small protrusions, similar to the first projection 511 provided on the rotating shaft 51. Furthermore, the second projection of the second fixing member 6 is not limited to being composed of the connecting side projection 63 and the central side projection 64. For example, the second projection of the second fixing member 6 may be one or three or more. If the height of the connecting side projection 63 and the central side projection 64, which are the second projections, is too high, the second fixing member 6 may not be able to lower completely even when rotated around the axis. Therefore, it is preferable to set the connecting side projection 63 and the central side projection 64 to a height of about one-third of the first projection 511, and to position them as auxiliary.

[0020] In the band fixing member 50, the band body 11 inserted through the insertion hole 501 is configured to pass between the first projection 511 of the first fixing member 5 and the second projection (connecting side projection 63 and central side projection 64) of the second fixing member 6. The first projection 511 bites into one surface of the band body 11 inserted through the insertion hole 501, and the second projection, the connecting side projection 63 and the central side projection 64, bites into the other surface opposite to the first surface, thereby fixing the band body 11. In the fixed state of the band body 11, it is preferable that the first projection 511 of the first fixing member 5 and the second projection (connecting side projection 63 and central side projection 64 in this embodiment) of the second fixing member 6 are arranged to be staggered in the longitudinal direction of the band body 11. As a result, the first projection 511 of the first fixing member 5 and the second projection (connecting side projection 63 and central side projection 64 in this embodiment) of the second fixing member 6 more securely bite into the front and back of the band body 11, eliminating the risk of the band body 11 slipping off.

[0021] As described above, the rotating shaft 51 is biased by the torsion spring 55 so that the first projection 511 does not come into contact with the band body 11 (in the direction indicated by the arrow in Figure 8(C)). However, with the band body 11 inserted through the insertion hole 501, when the second fixing member 6 is rotated toward the band body 11 as indicated by the arrows in Figures 8(D) and 8(E), the first projection 511 first bites into one surface of the band body 11, and then the connecting side projection 63 of the second projection bites into the other surface of the band body 11. As the second fixing member 6 is rotated further, the positional relationship between the axis of the spring bar 58, which is the rotation center of the second fixing member 6, and the axis of the spring bar 512, which is the rotation center of the rotation axis 51, causes the connecting side projection 63, which is biting in from the other side, to pull the band body 11 together with the first projection 511 in the direction of the arrow shown in Figure 8(F), causing the first projection 511 to rise in the direction of the arrow shown in Figure 8(F) against the biasing force of the torsion spring 55. As a result, as the second fixing member 6 rotates further and the central side projection 64 also bites into the other side of the band body 11, the first projection 511 becomes sandwiched between the second projections of the second fixing member 6 (in this embodiment, the connecting side projection 63 and the central side projection 64) in the longitudinal direction of the band 1 (band body 11).

[0022] Furthermore, the free end of the cover portion 62 of the second fixing member 6 is provided with a fixing member locking portion 65 that engages with the first fixing member 5 when the second fixing member 6 is rotated toward the band body 11. That is, when the band body 11 is fixed, the fixing member locking portion 65 engages with the first fixing member 5. In this embodiment, the cover portion 62 of the second fixing member 6 is curved to conform to the outer shape of the locking arm portion 54 of the frame member 52 of the first fixing member 5 (see Figures 2 and 3), and the fixing member locking portion 65 is a hook-shaped locking claw that engages with the outer part of the locking arm portion 54 when, for example, the second fixing member 6 wraps around to the underside of the locking arm portion 54 of the frame member 52 of the first fixing member 5. Note that the shape, configuration, etc. of the fixing member locking portion 65 are not limited to those shown herein. The locking portion 65 of the fixing member engages with the first fixing member 5, thereby maintaining the state in which the second fixing member 6 is locked to the first fixing member 5. Since the locking portion 65 is hook-shaped and simply wraps around the underside of the first fixing member 5 to catch on, it can be removed without the use of tools by hooking it with one's fingers and pulling it up.

[0023] Furthermore, in this embodiment, one end of the band body 11 is fixed to the device body 2 (band attachment portion 22a on the device body 2), and the other end is inserted through a band fixing member 50 attached to the band attachment portion 22b on the device body 2. However, the length of the band body 11 is longer than the circumference of a typical adult's arm. Therefore, after passing through the band fixing member 50, the excess portion of the band body 11 is folded back toward the band attachment portion 22a side, depending on the thickness of the user's arm (see Figure 9). In this embodiment, as shown in Figures 9 to 11, a band end locking member 7 is provided on the free end of the band body 11 to lock the free end to the band body 11. The band end locking member 7 locks the excess portion of the band body 11 that has been folded back toward the band attachment portion 22a side after the band length has been adjusted by the band fixing member 50 according to the thickness of the user's arm, so that it does not interfere with the wearing of the band 1 and the watch 100 equipped with it.

[0024] The band end locking member 7 comprises a locking body 71 and a hooking portion 72, as shown in Figures 11 to 13, for example. The locking body 71 has a width approximately equal to the width of the band body 11 and is fixed to the free end side of the band body 11 (the side opposite to the side locked to the band attachment portion 22a). The hooking portion 72 is a roughly L-shaped portion that rises from both ends of the locking body 71 in the width direction, and the height of the rising portion of the hooking portion 72 is approximately equal to the thickness of the band body 11. The hooking portion 72 locks onto the band body 11 by embracing it from both sides in the width direction. In Figure 13, the band body 11 to which the hooking portion 72 is hooked is virtually shown by a dashed line. By hooking the hooking portion 72 of the band end locking member 7 onto the band body 11, the excess portion of the band body 11 becomes integrated with the band 1 and does not get in the way.

[0025] As shown in Figures 11 and 12, it is preferable that the hook portion 72 has a notch 73 that slopes outward in the width direction on the side opposite to the free end of the band body 11. As shown in the illustrated example, by providing a notch 73 that is cut diagonally in a part of the hook portion 72, the tapered notch 73 acts as a guide, so that even if the band body 11 is made of a relatively hard material that is not easily deformed by bending, the free end of the band body 11 to which the band end locking member 7 is attached can be easily hooked onto the band body 11. Depending on the softness and flexibility of the band body 11, it is also possible to omit the tapered notch 73. Furthermore, when the hook portions 72 are provided on both sides in the width direction of the band body 11, it is preferable that the notch 73 be formed on both hook portions 72, but it is also possible to provide the notch 73 on only one of the hook portions 72.

[0026] Next, the operation of the band fixing member 50 according to this embodiment, and the band 1 and watch 100 equipped therewith, will be explained. First, one end of the band body 11 is attached to the band attachment portion 22a on the 12 o'clock side of the watch 100 using a spring bar. Note that the method of attaching one end of the band body 11 to the watch 100 is not particularly limited, and it may be fixed by means other than a spring bar. Next, the band fixing member 50 according to this embodiment is attached to the band attachment portion 22b on the 6 o'clock side of the watch 100. First, as a prerequisite, the rotating shaft 51 is attached to the locking arm portion 54 of the frame member 52 of the first fixing member 5 via a spring bar 512. At this time, a torsion spring 55 as a biasing member is attached to one side of the rotating shaft 51 (the right end in Figure 2, etc.). One spring arm 551 of the torsion spring 55 is locked to the rotating shaft 51 side (arm locking groove 513 of the rotating shaft 51), and the other spring arm 551 is locked to the locking arm portion 54 side (arm locking hole 542 of the locking arm portion 54) (see Figure 7). As a result, when the band body 11 is inserted through the insertion hole 501, the rotating shaft 51 is biased in a direction that prevents the first projection 511 provided on the rotating shaft 51 from coming into contact with the band body 11.

[0027] Subsequently, the connecting projection 61 of the second fixing member 6 is fitted into the recess 532 formed in the case mounting portion 53 of the frame member 52, and the shaft hole 531 of the case mounting portion 53 and the shaft hole 61a of the connecting projection 61 are connected, and then it is attached via the spring bar 58 into the recess 221 between the lugs of the band mounting portion 22b. This completes the band 1 with the band fixing member 50 and the watch 100 equipped with the band 1. Furthermore, in this embodiment, the other end (free end) of the band body 11 is inserted into the insertion hole 501, and the band end locking member 7 is attached to the free end of the band body 11 so that the excess portion of the band body 11 can be locked to the band body 11.

[0028] When attaching a watch 100 having a band 1 equipped with such a band fixing member 50 to the wrist, the other end (free end) of the band fixing band body 11 passes through the insertion hole 501 and the second fixing member 6 of the band fixing member 50 is flipped upward (upward in Figures 1, 8(A), 8(D), etc.), making the band body 11 between the band attachment portion 22a and the band fixing member 50 longer and forming an annular shape. The orientation of the rotation shaft 51 is biased by a torsion spring 55 so that the first projection 511 provided on the rotation shaft 51 does not come into contact with one side surface of the band body 11 (the lower surface in Figure 8(A)). Therefore, when bending the band body 11 over a long distance, the first projection 511 does not get caught or caught in the band body 11, making it easier to work with. The wrist is then passed over the annular portion of the band body 11. In this embodiment, it is assumed that the watch 100 is attached to the left wrist.

[0029] As shown in Figure 8(A), for example, the user rotates the second fixing member 6 significantly upwards and, using their left hand or the like, pulls the free end of the band body 11 that has emerged from the band fixing member 50 through the insertion hole 501 until the band body 11 is the length that matches the thickness of their arm, thereby adjusting the length of the band 1. When the second fixing member 6 is flipped upwards, as shown in Figures 8(A) and 8(D), for example, neither the first projection 511 nor the second projection contacts either the front or back surface of the band body 11. That is, the first projection 511 provided on the rotating shaft is biased by the biasing force of the torsion spring 55 so as not to contact one side surface of the band body 11 (the lower surface in Figure 8(A)) and the direction of the rotating shaft 5 is biased accordingly. However, the range of rotation is restricted to the point where the notch 514 provided on the rotating shaft 51 abuts against the stopper wall 543 provided on the locking arm 54 of the frame member 52, preventing it from rotating beyond a certain point (see Figure 8(G)). In addition, the second fixing member 6 has second projections (connecting side projection 63 and central side projection 64) provided on the back side of the cover portion 62 that are raised to a position spaced apart from the other side surface of the band body 11 (the upper surface in Figures 8(A) and 8(D)). As a result, the band body 11 can enter and exit the insertion hole 501 without resistance from either the first projection 511 or the second projection.

[0030] Once the band body 11 is adjusted to the appropriate length to fit the arm, the user rotates the second fixing member 6 toward the other side of the band body 11 (the upper side in Figures 8(A) and 8(D)). Specifically, the second fixing member 6 is rotated toward the band body 11 in the direction of the arrow shown in Figure 8(D), and the band body 11 is sandwiched between the first projection 511 and the second projection. As a result, the band body 11 first wraps around the rotation shaft 51, and the first projection 511 of the rotation shaft 51 bites into one side of the band body 11. As the second fixing member 6 is rotated further from here, as shown in Figure 8(E), the connecting side projection 63 of the second projection of the second fixing member 6 comes into contact with the other side of the band body 11, and as the second fixing member 6 rotates toward the band body 11, it bites into the other side of the band body 11. Then, as the second fixing member 6 is rotated toward the band body 11 as shown by the arrow in Figure 8(E), the band body 11 is pulled in the direction of the arrow shown in Figure 8(F) along with the movement of the second fixing member 6, and at the same time, the first projection 511 rises in the direction of the arrow shown in Figure 8(F). After that, when the second fixing member 6 is rotated until it completely overlaps the first fixing member 5 from above the band body 11, the central projection 64 of the second projection also bites into the other side surface of the band body 11, and the band body 11 is sandwiched in the longitudinal direction of the band 1 (band body 11) by the first projection 511 that bites in from one side surface and the connecting projection 63 and central projection 64 as second projections that bite in from the other side surface, and is locked so that it does not move from the adjusted band length.

[0031] The second fixing member 6 is provided with a hook-shaped locking claw as a fixing member locking portion 65 at the end of the cover portion 62, etc. When the second fixing member 6 is rotated to its limit toward the band, the fixing member locking portion 65 wraps around to the underside of the locking arm portion 54 of the frame member 52 of the first fixing member 5 and locks onto the first fixing member 5. This prevents the second fixing member 6 from rotating unintentionally. Finally, as shown in Figures 9 to 11, the excess portion of the band 1 is locked to the band body 11 by hooking the hook portion 72 of the band end locking member 7 onto the band body 11. As a result, even for users with thin arms, the free end of the band body 11 integrates with the band 1 and does not get in the way.

[0032] As described above, the band fixing member 50 according to this embodiment comprises a first fixing member 5 having an insertion hole 501 through which the band body 11 is inserted and a first projection 511, and a second fixing member 6 having a connecting side projection 63 and a central side projection 64 as second projections, with one end of the rotatably attached to the first fixing member 5. The band body 11 inserted through the insertion hole 501 is configured to pass between the first projection 511 of the first fixing member 5 and the second projections (connecting side projection 63 and central side projection 64) of the second fixing member 6. The first projection 511 bites into one surface of the band body 11 inserted through the insertion hole 501, and the second projections (connecting side projection 63 and central side projection 64) bite into the other surface, which is the opposite side of the inserted surface, thereby fixing the band body 11. In other words, with the band body 11 inserted through the insertion hole 501, rotating the second fixing member 6 toward the band body 11 causes the band body 11 to be sandwiched between the first fixing member 5 and the second fixing member 6, thereby fixing it in place. This ensures that the band body 11 can be securely fixed from both sides, for example, after adjusting the band length. Once the band body 11 is fixed, there is no risk of the adjusted band length shifting or the band body 11 coming off.

[0033] Furthermore, the first fixing member 5 of the embodiment includes a rotating shaft 51 provided with a first projection 511, and a torsion spring 55 as a biasing member that biases the rotating shaft 51 so that the first projection 511 does not come into contact with the band body 11. As a result, during the process of adjusting the band length, the first projection 511 of the rotating shaft 51 does not pierce the band body 11, and the first projection 511 does not hinder smooth adjustment.

[0034] In this embodiment, when the second fixing member 6 rotates toward the band body 11, the rotating shaft 51 rotates in a direction in which the first projection 511 contacts the band body 11 against the biasing force of the torsion spring 55 acting as a biasing member, and the first projection 511 bites into one surface of the band body 11. In this way, when the band fixing operation begins, in which the second fixing member 6 rotates toward the band, the first projection 511 penetrates deeply into the band body 11, and the band body 11 can be firmly fixed.

[0035] Furthermore, the first fixing member 5 of the embodiment has a rotation restricting portion that restricts the rotation range of the rotation shaft 51 in a direction in which the first projection 511 does not come into contact with the band body 11. That is, in the embodiment, the rotation restricting portion is comprised of a notch 514 on the rotation shaft 51 and a stopper wall portion 543 on the frame member 52. Therefore, even when the rotation shaft 51 is biased by a biasing member such as a torsion spring 55, it will not rotate any further once the notch 514 abuts against the stopper wall portion 543. By restricting the rotation range of the rotation shaft 51 in this way, it is possible to avoid situations where the rotation shaft 51 rotates under biasing force, preventing it from securely inserting into the band body 11 when it is desired to fix the band body 11, or where it rotates too much and entangles the band body 11.

[0036] Furthermore, the first projection 511 of the embodiment is composed of a plurality of small protrusions provided along the width direction of the band 1 (band body 11). Therefore, compared to, for example, if the first projection 511 were a single continuous protrusion, the contact area that comes into contact with the surface of the band body 11 when it comes into contact with the band body 11 is smaller, making it easier to pierce the surface of the band body 11 when it comes into contact with it.

[0037] Furthermore, when the band body 11 is fixed, the first projection 511 and the second projections, the connecting side projection 63 and the central side projection 64, are staggered. By arranging each projection in this way, the projections interlock securely with each other, making it even less likely to slip when fixing the band body 11, and reliably preventing the band body 11 from shifting or coming off.

[0038] Furthermore, in this embodiment, one end of the band body 11 is fixed to the device body 2, and the free end of the band body 11 is provided with a band end locking member 7 that locks the free end to the band body 11. This allows the excess portion of the band body 11 to be integrated with the band body 11, even if the user's arm is thin, so that it does not get in the way when worn.

[0039] Furthermore, the free end of the second fixing member 6 in this embodiment is provided with a fixing member locking portion 65 that engages with the first fixing member 5 when the second fixing member 6 is rotated toward the band body 11. This ensures that once the second fixing member 6 has rotated all the way and the free end of the cover portion 62 has moved to the underside of the first fixing member 5, it will catch on the first fixing member 5 and will not easily come off.

[0040] Furthermore, if the band 1 according to the embodiment includes the band fixing member 50 according to the embodiment, and such a band 1 is applied to the watch 100, the band length can be easily adjusted, and after adjustment, the band body 11 can be securely fixed, and the band 1 can be reliably prevented from coming off or loosening while being worn.

[0041] Although embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to these embodiments and can be modified in various ways without departing from its essence. For example, in the above embodiment, a hook-shaped fixing member locking portion 65 is provided on the free end side of the cover portion 62 to prevent the second fixing member 6 from rotating and coming off unintentionally by locking the second fixing member 6 to the first fixing member 5. However, the configuration for locking the second fixing member 6 to the first fixing member 5 is not limited to this. For example, as shown in Figures 14 to 17, a projection 59 may be provided on the outer side of the locking arm portion 54 of the first fixing member 5, and an overhang portion 82 extending from the side of the upper surface portion may be provided on the cover member 81 of the second fixing member 8. In Figures 14 to 17, the same reference numerals are used for components similar to those in the embodiment, and their descriptions are omitted.

[0042] In this case, the protruding portion 82 is designed to extend to a position where it overlaps with the outer part of the locking arm portion 54 when the second fixing member 6 is rotated all the way and reaches the position where the second fixing member 6 covers the first fixing member 5 (see Figure 15). In this case, for example, a locking portion 83 is formed on the protruding portion 82 at a position corresponding to the projection 59 when it overlaps with the outer part of the locking arm portion 54, to lock the projection 59. The locking portion 83 may be a through hole or a recess. As shown in Figures 16 and 17, when the second fixing member 6 is in the process of rotating toward the band body 11, the projection 59 does not engage with the locking portion 83 and is not locked. However, as shown in Figures 15, 18, and 19, when the second fixing member 6 has rotated all the way toward the band body 11, the projection 59 engages with the locking portion 83 and is locked. Unless the second fixing member 6 is pulled up forcefully with a finger or the like, it will not rotate upward (upward in Figures 14 and 15), and the fixing state of the band fixing member 50 will not be released. Note that when the second fixing member 6 and the first fixing member 5 are locked together by a projection and a locking portion (recess, etc.) that engages it, for example, the projection may be provided on the second fixing member 6 side and the locking portion (recess, etc.) that engages it may be provided on the first fixing member 5 side. The configuration for locking the second fixing member 6 and the first fixing member 5 together to prevent the band fixing member from being unintentionally released is not limited to the examples provided herein, and other configurations may also be used.

[0043] Furthermore, although the above embodiment illustrates a case where the band 1 is worn on the arm, the object to which it is worn is not limited to the arm (wrist), etc. For example, it may be worn on the leg (ankle, etc.). Also, the band 1 is not limited to a band in which the band body 11 is connected as one continuous band, as illustrated in the embodiment. For example, the band 1 may consist of two bands provided on one side and the other side of the device body 2, with the band fixing member 50 according to the embodiment attached to one of them, and after the band fixing member 50 portion is adjusted to the desired band length, the two bands may be connected by various clasp mechanisms, etc.

[0044] Furthermore, the side opposite to the side where the band fixing member 50 is provided (the 6 o'clock side in an analog watch) (the 12 o'clock side in an analog watch) may be configured such that the band body 11 is fixed to the device body 2 and cannot be removed, rather than being secured using a spring bar or the like.

[0045] Furthermore, although the embodiment illustrates a case where the band fixing member 50 is provided on the 6 o'clock side of the device body 2 in the case of an analog watch, the position where the band fixing member 50 is provided is not limited, and for example, the band fixing member 50 may be provided on the 12 o'clock side of the analog watch. In the embodiment, it is assumed that the watch 100 is worn on the user's left arm, but the watch may also be worn on the right arm. For example, if the watch is for right-arm wear, one end of the band body 11 may be fixed to the band attachment part 22b provided on the 6 o'clock side, and the band fixing member 50 may be attached to the band attachment part 22a provided on the 12 o'clock side. Also, as in the embodiment, if the band attachment parts 22 on the 12 o'clock and 6 o'clock sides of the device body 2 are both formed in the same shape and are configured to fasten the band etc. using a spring bar, the position on which the band fixing member 50 is provided, whether on the 12 o'clock side or the 6 o'clock side, may be changed as appropriate according to the user's convenience. Furthermore, although the embodiment illustrates a case in which the first fixing member 5 of the band fixing member 50 has a through hole 501 for inserting the band body 11, the position of the through hole 501 is not limited, and for example, the through hole 501 may be provided in the second fixing member 6. Alternatively, the band fixing member 50 may not have a through hole for inserting the band body, and the band body may be interposed between the first fixing member 5 and the second fixing member 6.

[0046] Furthermore, the device to which the band 1, including the band fixing member 50 of the embodiment, is provided is not limited to a watch. For example, the band 1 can also be applied to various electronic devices that acquire biometric information other than time, such as heart rate and blood flow information, various smartwatches, sports watches, and other devices. Moreover, the band 1, including the band fixing member 50, is not limited to being used attached to various devices, and may be used on its own.

[0047] Although several embodiments of the present invention have been described above, the scope of the present invention is not limited to the embodiments described above. The specific configurations, structures, and positional relationships shown in the above embodiments can be modified as appropriate without departing from the spirit of the present invention. Furthermore, the present invention includes the scope of the invention as described in the claims and its equivalents. [Explanation of Symbols]

[0048] 5...First fixing member, 6...Second fixing member, 11...Band body, 50...Band fixing member, 511...First projection, 63...Connecting side projection (second projection), 64...Central side projection (second projection)

Claims

1. A first fixing member having a first projection, A second fixing member having a second protrusion, Equipped with, The first projection bites into one surface of the band body interposed between the first projection and the second projection, and the second projection bites into the other surface, which is the opposite surface, thereby fixing the band body in place. Band fixing component.

2. The first fixing member has an insertion hole through which the band body is inserted, The second fixing member is rotatably attached to the first fixing member at one end. With the band body inserted through the insertion hole, the second fixing member is rotated toward the band body so that the band body is sandwiched between the first fixing member and the second fixing member, thereby securing it in place. The band fixing member according to claim 1.

3. The first fixing member is, The rotating shaft on which the first projection is provided, A biasing member that biases the rotation shaft so that the first projection is oriented in a direction that does not come into contact with the band body, It has The band fixing member according to claim 1.

4. The rotating shaft rotates in a direction such that, when the second fixing member rotates toward the band body, the first projection contacts the band body against the biasing force of the biasing member, and the first projection bites into one surface of the band body. The band fixing member according to claim 3.

5. The first fixing member has a rotation restricting portion that restricts the range of rotation of the rotation axis in a direction in which the first projection does not come into contact with the band body. The band fixing member according to claim 3.

6. The first projection is composed of a plurality of small protrusions provided along the width direction of the band body. The band fixing member according to claim 1.

7. In the fixed state of the band body, the first projection and the second projection are staggered. The band fixing member according to claim 1.

8. The band body is fixed to the device body at one end, and the free end of the band body is provided with a band end locking portion for locking the free end to the band body. The band fixing member according to claim 1.

9. A fixing member locking portion is provided on the free end side of the second fixing member. In the fixed state, the fixing member locking portion is locked to the first fixing member. The band fixing member according to claim 1.

10. A band comprising a band fixing member and a band body as described in at least one of claims 1 to 9.

11. A band comprising a band fixing member according to at least one of claims 1 to 9, The main unit of the device, A watch equipped with [a specific feature / ability].

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