watch straps and clocks

Abstract

The watch strap and timepiece can reduce looseness and gaps between the ends of the strap and the case, improving the appearance. The strap includes: a first pin member with a first pin; a second pin member with a second pin; an operating member that moves between a first position and a second position; a frame having a connecting portion and a locking portion; and a guide portion that guides the first and second pin members to move between an engaged position and a disengaged position. When the operating member is moved to the first position, the first and second pin members move to the engaged position; when the operating member is moved to the second position, they move to the disengaged position. The engaged position is where each pin is located further outward than the side of the frame in the width direction and closer to the connecting portion in the length direction than in the disengaged position. The disengaged position is where each pin is located further inward than the side of the frame in the width direction and closer to the locking portion in the length direction than in the engaged position.

Description

Technical Field

[0001] This invention relates to watch straps and clocks. Background Technology

[0002] In watches, a spring bar is typically used to connect the watch case and the strap. In this case, the through hole formed in the end member of the strap for the spring bar to pass through is intentionally offset from the holes formed in the case for the two ends of the spring bar to be inserted. When the two ends of the spring bar, which pass through the through hole in the end member, are inserted into the holes in the case, the spring bar bends, applying force to the end member towards the body, thereby preventing a gap from forming between the case and the end member. Such installation of the spring bar requires specialized tools and techniques, and therefore is not something that can be easily done by the user.

[0003] Therefore, as described in Patent Document 1, a connecting structure for a watch strap that allows the user to easily attach and detach it has been proposed. In Patent Document 1, the structure is configured such that a spring bar with a lever connects the watch case and the watch strap, and the user can easily attach or detach the watch strap relative to the watch case by sliding the lever.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2020-168218

[0005] However, in the watchband construction of Patent Document 1, the spring bar is detached from the housing by sliding along the width of the watchband via a lever operation. Therefore, the positions of the spring bar and the hole on the housing side need to be aligned in a straight line. Consequently, due to component deviations, looseness and gaps occur between the end member and the housing, resulting in a problem where the looseness and gaps are large and noticeable, leading to a decrease in aesthetics. Summary of the Invention

[0006] The watch strap of the present invention is characterized in that it is mounted on a watch case, the watch case having a first engaging hole and a second engaging hole facing each other, the watch strap having a strap body and an end member disposed at an end of the strap body, the end member having: a first pin member having a first pin engaging with the first engaging hole; a second pin member having a second pin engaging with the second engaging hole, and disposed spaced apart from the first pin member in the width direction of the watch strap; an operating member that moves between a first position and a second position; a frame that holds the first pin member, the second pin member, and the operating member; and a guide portion that guides the first pin member and the second pin member to move the first pin member and the second pin member relative to the frame between an engaged position and a disengaged position, the frame having: an engaging portion, which... The watch strap engages with the watch case; and a connecting portion is separately disposed from the engaging portion along the length of the watch strap and connected to the watch strap body. When the operating component is moved to the first position, the first pin component and the second pin component move to the engaging position. When the operating component is moved to the second position, the first pin component and the second pin component move to the disengaged position. The engaging position is where the first pin and the second pin are located on the outer side of the frame in the width direction of the watch strap, and are located closer to the connecting portion than the disengaged position in the length direction of the watch strap perpendicular to the width direction. The disengaged position is where the first pin and the second pin are located on the inner side of the frame in the width direction, and are located closer to the engaging portion than the engaging position in the length direction.

[0007] The watch of the present invention is characterized in that it has the aforementioned strap.

[0008] The clock of the present invention is characterized in that it comprises: a clock case having a first engaging hole and a second engaging hole opposite to each other; and a watch strap having a watch strap body and an end member, the end member being disposed at the end of the watch strap body and mounted on the clock case, the end member having: a first pin member having a first pin capable of engaging with the first engaging hole; a second pin member having a second pin capable of engaging with the second engaging hole, and being disposed spaced apart from the first pin member in the width direction of the watch strap; an operating member movable between a first position and a second position; and a frame holding the first pin member, the second pin member, and the operating member, wherein the first pin member and the second pin member are configured such that: when the operating member is moved to the first position, the first pin member and the second pin member can move to an engaging position engaging with the first engaging hole and the second engaging hole, and when the operating member is moved to the second position, the first pin member and the second pin member can move to a disengaged position not engaging with the first engaging hole and the second engaging hole. Attached Figure Description

[0009] Figure 1 This is an exploded perspective view showing the main parts of the clock according to the first embodiment.

[0010] Figure 2 This is an exploded perspective view showing the end component of the first embodiment.

[0011] Figure 3 This is a cross-sectional view showing the end member of the first embodiment.

[0012] Figure 4 This is a top view showing the end member of the first embodiment.

[0013] Figure 5 This is a top view showing the end member of the first embodiment.

[0014] Figure 6 This is a cross-sectional view showing the end member of the first embodiment.

[0015] Figure 7 This is an exploded perspective view showing the end member of the second embodiment.

[0016] Figure 8 This is an exploded perspective view showing the end member of the second embodiment.

[0017] Figure 9 This is a top view showing the end member of the second embodiment.

[0018] Figure 10 This is a top view showing the end member of the second embodiment.

[0019] Figure 11 This is a top view showing the end member of a modified example.

[0020] Figure 12 This is a top view showing the end members of other variations.

[0021] Label Explanation

[0022] 1: Clock; 2: Clock body; 3: Watch strap; 4: Block; 4A: Outer block; 4B: Middle block; 5: End component; 5B: End component; 10: Clock case; 11: Case body; 12: Side; 13: Lower surface; 15: Lug; 16: First locking hole; 17: Second locking hole; 20: Frame; 20B: Frame; 21: Base; 22: Connecting part; 23: Locking part; 24: Guide pin; 25: Threaded hole; 30: First pin component; 30B: First pin component; 30C: First pin component; 30D: First pin component; 31: Outer surface; 32: First inclined surface; 33: First abutting inclined surface; 34: First abutting plane; 35: First pin; 36: Guide hole; 36C: Guide hole; 36D: Guide hole; 37: Fixing hole; 37C: Fixing hole; 37D: Fixing hole; 40: Second pin component; 40B: Second pin component; 40C: Second pin component; 40D: Second pin component; 41: Outer surface; 42: Second inclined surface; 43: Second abutting inclined surface; 4 4: Second abutting surface; 45: Second pin; 46: Guide hole; 46C: Guide hole; 46D: Guide hole; 47: Fixing hole; 47C: Fixing hole; 47D: Fixing hole; 50: Operating component; 51: Base plate; 52: Button; 53: Locking wall; 54: First guide surface; 55: Second guide surface; 56: Abutting surface; 57: Retaining groove; 60: Pressure plate; 61: Cover; 62: Retaining part; 63: Operating hole; 64: Threaded hole; 65: Recess; 66: Locking part ; 68: Screw; 71: Spring; 72: Spring; 80B: Operating component; 81: Operating plate; 82: Pressure plate; 83: Elongated hole; 90: Operating body; 91: First guide surface; 92: Second guide surface; 93: Abutment surface; 94: Retaining groove; 95: Spring; 221: Guide wall; 222: Connecting wall; 223: Through hole; 224: Screw; 231: First engagement surface; 232: Second engagement surface; 235: Abutment surface; 236: Inclined surface; 237: Flat surface. Detailed Implementation

[0023] [First Implementation Method]

[0024] Hereinafter, the clock 1 of the first embodiment of the present invention will be described with reference to the accompanying drawings.

[0025] Figure 1 This is a perspective view showing the main parts of the clock 1 according to the first embodiment.

[0026] like Figure 1 As shown, the clock 1 has a clock body 2 and a watch strap 3. Furthermore, in the following description, the length direction of the watch strap 3 is designated as the X-axis, the width direction as the Y-axis, and the thickness direction as the Z-axis. These X, Y, and Z axes are mutually perpendicular.

[0027] The main body of the clock 2 has a clock case 10, a glass cover (not shown), and a back cover. The clock case 10 has a body 11 and lugs 15.

[0028] The case 11 is a cylindrical component made of metal, and inside it are a dial, movement, etc. (not shown in the figure).

[0029] Lugs 15 are respectively located at the 6 o'clock and 12 o'clock positions on the case body 11. Each lug 15 is provided in pairs, protruding from the side 12 of the case body 11, and a first engagement hole 16 and a second engagement hole 17 are formed on the opposite surface of each lug 15.

[0030] [Watch Strap]

[0031] like Figure 1 As shown, the watch strap 3 is configured with multiple metal blocks 4 forming the main body of the strap and end members 5 forming the end components. The blocks 4 are configured with an outer block 4A and a middle block 4B. The end member 5 is connected to the end of the main body of the strap composed of the multiple blocks 4 and is mounted on the lugs 15. Furthermore, in Figure 1 The illustration shows a portion of the watch strap 3 mounted on the lug 15 at the 6 o'clock position of the watch 1.

[0032] [End component]

[0033] Figure 2 This is an exploded perspective view of the end component 5 from the rear side. Figure 3 This is a cross-sectional view obtained by cutting the end member 5 with a plane perpendicular to the width direction of the watch strap 3, i.e., the Y-axis direction.

[0034] like Figure 2 As shown, the end member 5 has a frame 20, a first pin component 30, a second pin component 40, an operating component 50, and a pressure plate 60.

[0035] [Frame]

[0036] like Figure 2 as well as Figure 3 As shown, the frame 20 has a base 21, a connecting part 22, and a locking part 23.

[0037] like Figure 1 As shown, the base 21 is a generally plate-shaped portion that protrudes from the frame 20 toward the surface of the strap 3.

[0038] The connecting portion 22 is located at the end of the base 21 near the block 4, and has a pair of guide walls 221 facing each other in the width direction of the strap 3 and a connecting wall 222 connecting the guide walls 221. When viewed from the rear side of the frame 20, it forms a roughly U-shape. Each guide wall 221 has a through hole 223 extending along the Y-axis. The guide walls 221 are positioned between the outer blocks 4A, as shown... Figure 1 As shown, the main body of the watch strap, which is composed of multiple outer blocks 4, is connected to the connecting part 22 by means of screws 224 inserted into the outer block 4A and the through hole 223.

[0039] like Figure 2 , 3 As shown, the engaging portion 23 is provided on the side of the base 21 near the watch case 10, and abuts against the corner formed by the side surface 12 of the case 11 and the lower surface 13 formed vertically from the side surface 12. That is, the engaging portion 23 has a first engaging surface 231 that engages with the side surface 12 and a second engaging surface 232 that engages with the lower surface 13.

[0040] Furthermore, the engaging portion 23 has a wall surface that rises from the base 21 along the Z-axis direction. This wall surface on the engaging portion 23 has: an abutment surface 235 located at the center in the Y-axis direction and opposite to the connecting wall 222 of the connecting portion 22; a pair of inclined surfaces 236 disposed on both sides of the abutment surface 235 and inclined relative to the X-axis direction and the Y-axis direction; and a pair of flat surfaces 237 disposed on the outer side of the inclined surfaces 236 and along the Y-axis direction.

[0041] A pair of guide pins 24 are formed on the base 21, protruding toward the rear side of the end member 5. The pair of guide pins 24 are positioned further outward than the connecting portion 22 in the width direction of the frame 20. In addition, a pair of threaded holes 25 are formed between the guide pins 24 for engagement with the screw 68 described later. The threaded holes 25 do not penetrate the base 21 and are formed not to open on the surface of the end member 5.

[0042] A first pin member 30, a second pin member 40, and an operating member 50 are disposed in the recess of the frame 20, which is surrounded by the base 21, the connecting part 22, and the engaging part 23. The first pin member 30 and the second pin member 40 are disposed separately in the Y-axis direction of the frame 20, and the operating member 50 is disposed between them.

[0043] [First pin component and second pin component]

[0044] The first pin component 30 and the second pin component 40 are roughly pentagonal block-shaped components when viewed from above in the Z-axis direction.

[0045] The first pin component 30 is configured to have an outer surface 31, a first inclined surface 32, a first abutting inclined surface 33, a first abutting plane 34, a first pin 35, a guide hole 36, and a fixing hole 37.

[0046] The outer surface 31 is the surface exposed on the side of the end member 5, and the first pin 35 protrudes from the outer surface 31 in the Y-axis direction.

[0047] The first inclined surface 32 is a surface opposite to the operating member 50, and is inclined relative to the X-axis direction and the Y-axis direction. The first inclined surface 32 is formed such that it moves from the base end side near the outer side surface 31 toward the end side away from the outer side surface 31, i.e., the center side in the width direction of the watch strap 3, toward the engaging part 23 side.

[0048] The first abutting slope 33 is the surface opposite to the slope 236 of the engaging portion 23, and the first abutting plane 34 is the surface opposite to the plane 237 of the engaging portion 23. Furthermore, the first abutting slope 33 is in a different inclination direction than the first slope 32. Therefore, the first pin member 30 is formed such that the dimension between the first slope 32 and the first abutting slope 33 decreases as it moves away from the front end side of the outer surface 31, i.e., the front end tapers.

[0049] like Figure 4 As shown, the guide hole 36 is an elongated arc-shaped hole when viewed from above in the Z-axis direction, and it passes through the first pin member 30 along the Z-axis direction. The guide hole 36 is arc-shaped from a position near the outer side 31 to a position near the first abutting plane 34. When viewed from above, it forms an angle close to the X-axis near the first abutting plane 34, and an angle close to the Y-axis as it approaches the outer side 31, i.e., towards the outer side of the width direction of the watch strap 3. Therefore, on the side of the first abutting plane 34, i.e., the center side of the width direction of the watch strap 3, the guide hole 36 forms an angle where the displacement in the length direction (X-axis) of the watch strap 3 is greater than the displacement in the width direction (Y-axis) of the watch strap 3. Furthermore, as it approaches the outer side of the width direction of the watch strap 3, i.e., the outer side 31, the guide hole 36 gradually changes to an angle where the displacement in the width direction of the watch strap 3 is greater than the displacement in the length direction of the watch strap 3.

[0050] The fixing hole 37 is an elongated hole that is inclined relative to the X-axis and Y-axis directions when viewed from above, and is provided through the first pin member 30 in the same manner as the guide hole 36. In addition, the inclination angle of the fixing hole 37 is approximately the same as the end side of the guide hole 36 on the outer side 31 side, that is, an angle close to the Y-axis.

[0051] The second pin component 40 is the same as the first pin component 30, and is configured such that the orientation of the first pin component 30 after rotating 180 degrees about the Z-axis is linearly symmetrical with respect to the axis of symmetry along the X-axis and the center of the width direction of the watch strap 3.

[0052] That is, the second pin component 40 has an outer surface 41, a second inclined surface 42, a second abutting inclined surface 43, a second abutting plane 44, a second pin 45, a guide hole 46, and a fixing hole 47, which are the same structures as the outer surface 31, first inclined surface 32, first abutting inclined surface 33, first abutting plane 34, first pin 35, guide hole 36, and fixing hole 37 of the first pin component 30. Therefore, the specific structure of the second pin component 40 is omitted.

[0053] Guide pins 24 and springs 71, serving as force-applying components, are respectively inserted into guide holes 36 and 46 of the first pin component 30 and the second pin component 40. The springs 71 are compression coil springs, positioned between the ends of the guide holes 36 and 46 on the side facing the first abutment plane 34 and the second abutment plane 44, and the guide pins 24. Through these springs 71, each pin component 30 and 40 is forced towards each other.

[0054] Screws 68 are inserted into the fixing holes 37 and 47 of the first pin component 30 and the second pin component 40. The width of the fixing holes 37 and 47 is larger than the outer diameter of the screw 68, and each pin component 30 and 40 with fixing holes 37 and 47 is configured to slide relative to the screw 68. The first pin component 30 and the second pin component 40 are guided by the guide pin 24 and the screw 68, and can slide within the frame 20 in the X-axis and Y-axis directions. That is, each pin component 30 and 40 moves along the inclined direction of the guide holes 36 and 46 and the fixing holes 37 and 47. At this time, when each pin component 30 and 40 moves toward each other in the Y-axis direction, it moves toward the engaging portion 23 in the X-axis direction; when it moves away from each other in the Y-axis direction, it moves toward the connecting portion 22 in the X-axis direction.

[0055] Here, as Figure 4 As shown, the position where the first pin 35 and the second pin 45 engage with the first engagement hole 16 and the second engagement hole 17 when the pin components 30 and 40 move in the direction of mutual separation is defined as the engagement position.

[0056] In addition, such as Figure 5 As shown, the position where the first pin 35 and the second pin 45 disengage from the first engagement hole 16 and the second engagement hole 17 when the pin components 30 and 40 move toward each other is defined as the release position. Figure 5As shown, when each pin component 30, 40 moves to the release position, the first abutting slope 33 and the second abutting slope 43 abut against a pair of slopes 236, and the first abutting plane 34 and the second abutting plane 44 abut against a pair of planes 237.

[0057] like Figures 2 to 4 As shown, the operating member 50 has a base plate portion 51, a button portion 52, a locking wall portion 53, a first guide surface 54, a second guide surface 55, an abutment surface 56, and a retaining groove 57. The operating member 50 is disposed between a pair of guide walls 221 and is configured to be movable along the guide walls 221 in the X-axis direction.

[0058] The substrate portion 51 is a hexagonal flat plate portion that is viewed from above in the Z-axis direction, and its two sides abut against the guide wall 221 and are guided.

[0059] The button portion 52 protrudes from the base plate portion 51 toward the back side of the end member 5, i.e., in the Z-axis direction. As will be described later, the button portion 52 is an operating part operated by the user of the clock 1 when the end member 5 is attached to or detached from the clock case 10.

[0060] The locking wall portion 53 is a wall portion that protrudes in the Z-axis direction from the end of the base plate portion 51 on the side near the engaging portion 23.

[0061] The first guide surface 54 is a side surface of the base plate portion 51 that faces the first inclined surface 32 of the first pin member 30. The second guide surface 55 is a side surface of the base plate portion 51 that faces the second inclined surface 42 of the second pin member 40. Therefore, the first guide surface 54 and the second guide surface 55 are inclined towards each other in the X-axis direction as they move from the connecting portion 22 side toward the engaging portion 23 side.

[0062] The abutting surface 56 is the side surface of the substrate portion 51 that faces the abutting surface 235. The retaining groove 57 is a groove along the X-axis direction on the bottom surface of the substrate portion 51 on the side near the base portion 21. In this embodiment, two retaining grooves 57 are formed.

[0063] Here, by using spring 71 to apply force to each pin component 30, 40, the first inclined surface 32 of the first pin component 30 always abuts against the first guide surface 54 of the operating component 50, and the second inclined surface 42 of the second pin component 40 always abuts against the second guide surface 55 of the operating component 50.

[0064] Therefore, as Figure 4As shown, when the operating component 50 is moved toward the engaging portion 23 and the contact surface 56 is in contact with the contact surface 235, the first guide surface 54 and the second guide surface 55 are in contact with the front end sides of the first inclined surface 32 and the second inclined surface 42, causing the first pin component 30 and the second pin component 40 to move in the direction of separation against the force of the spring 71, that is, the engaging position where the first pin 35 and the second pin 45 engage with the first engaging hole 16 and the second engaging hole 17.

[0065] On the other hand, such as Figure 5 As shown, when the operating member 50 is moved toward the connecting part 22 and the operating member 50 abuts against the connecting wall 222, the first guide surface 54 and the second guide surface 55 abut against the base end sides of the first inclined surface 32 and the second inclined surface 42. The first pin member 30 and the second pin member 40 move toward each other in a direction of mutual approach by means of the force of the spring 71, that is, the release position where the first pin 35 and the second pin 45 disengage from the first engagement hole 16 and the second engagement hole 17.

[0066] Here, the position of the operating member 50 when it is moved to the engaging part 23 side, i.e., when the first pin member 30 and the second pin member 40 are in the engaged position, is defined as the first position. The position of the operating member 50 when it is moved to the connecting part 22 side, i.e., when the first pin member 30 and the second pin member 40 are in the disengaged position, is defined as the second position.

[0067] like Figures 2-4 As shown, springs 72 are respectively arranged in the retaining grooves 57 of the operating member 50. The springs 72 are compression coil springs, which are arranged between the base 21 and the retaining grooves 57, and apply force to the operating member 50 in the Z-axis direction toward the back side of the end member 5, that is, away from the base 21. Therefore, the springs 72 constitute the second force-applying member.

[0068] The pressure plate 60 has a cover portion 61 and a pair of retaining portions 62 extending from the cover portion 61 to both sides in the width direction of the watch strap 3.

[0069] The cover portion 61 is positioned across the connecting portion 22 and the engaging portion 23, and has an operation hole 63 for mounting the button portion 52 and a threaded hole 64 for mounting the screw 68. The pressure plate 60 is fixed to the frame 20 by screwing the screw 68 mounted in the threaded hole 64 into the threaded hole 25 via the fixing holes 37 and 47 of each of the pin members 30 and 40. The base plate portion 51 of the operating member 50 is held and clamped by the frame 20 and the pressure plate 60, and the button portion 52 is mounted in the operation hole 63.

[0070] In addition, the retaining part 62 is disposed on the back side of each pin component 30, 40. Therefore, each pin component 30, 40 is clamped and disposed by the frame 20 and the retaining part 62.

[0071] like Figure 3 As shown, a recess 65 is formed on the surface of the cover 61 on the side near the operating member 50, allowing the locking wall portion 53 to be disposed. In the pressure plate 60, a locking portion 66 is formed between the recess 65 and the operating hole 63. When the locking wall portion 53 is disposed within the recess 65, i.e., when the operating member 50 is in the first position, movement of the operating member 50 to the second position is restricted. Therefore, the locking wall portion 53 of the operating member 50 constitutes a movement restriction portion.

[0072] [Standard operating procedures for loading and unloading end components]

[0073] Next, the operation of attaching and detaching the end member 5 of the watch strap 3 relative to the watch case 10 will be explained.

[0074] [Installation steps for end components]

[0075] When the end member 5 is installed on the watch case 10, such as Figure 5 As shown, the operating component 50 is pre-positioned to the position on the side of the connecting part 22, i.e., the second position. In this case, as... Figure 6 As shown, the operating component 50 is positioned close to the base 21, where the locking wall 53 abuts against the locking part 66 and presses into the spring 72.

[0076] In this state, such as Figure 5 As shown, each pin component 30, 40 moves to the release position where the first pin 35 and the second pin 45 are pulled in from the side of the frame 20. Therefore, the user can place the end member 5 between the lugs 15. Then, the user places the end member 5 at the position where the first engaging surface 231 and the second engaging surface 232 of the engaging portion 23 abut against the side surface 12 and the lower surface 13 of the watch case 10.

[0077] Next, the user operates the button 52 inside the operation hole 63, causing the operating component 50 to move towards the engaging part 23, i.e., the first position. Thus, as... Figure 3 as well as Figure 4 As shown, each pin component 30 and 40 moves in a direction of separation against the force of the spring 71, moving to the engagement position where the first pin 35 and the second pin 45 engage with the first engagement hole 16 and the second engagement hole 17.

[0078] Furthermore, as the pin components 30 and 40 move, the guide pin 24 is guided by the guide holes 36 and 46 and leaves from the outer side 31 and 41 of the guide holes 36 and 46, moving towards the watch case 10 in the X-axis direction. That is, the frame 20 with the guide pin 24 is pressed towards the watch case 10 relative to the pin components 30 and 40, and the frame 20 of the end member 5 is pressed against the watch case 10 to prevent gaps or loosening between the end member 5 and the watch case 10, thereby improving the appearance.

[0079] Furthermore, when the hand is removed from the button portion 52 at the first position where the operating member 50 abuts against the contact surface 235, such as Figure 3 As shown, the operating member 50 moves to the rear side by means of the spring 72, and the locking wall 53 engages with the recess 65. In this state, the locking wall 53 is locked to the locking part 66, and the movement of the operating member 50 toward the connecting part 22 is also restricted. Therefore, the engagement of the first pin 35 and the second pin 45 with the first engaging hole 16 and the second engaging hole 17 can be reliably maintained.

[0080] [Disassembly sequence of end components]

[0081] Next, the steps for removing the end member 5 from the clock case 10 will be explained.

[0082] from Figure 3 as well as Figure 4 From the installed state, pressing in the button part 52 causes the locking wall part 53 to disengage from the recess 65, thereby moving the button part 52 toward the connecting part 22, i.e., the second position. Thus, as... Figure 5 and Figure 6 As shown, each pin component 30, 40 is moved towards each other by the force applied by the spring 71, and each pin component 30, 40 moves towards the release position where the first pin 35 and the second pin 45 disengage from the first engagement hole 16 and the second engagement hole 17. As a result, the end component 5 can be removed from the watch case 10.

[0083] [Effects of the First Embodiment]

[0084] By operating the operating component 50, the end member 5 can be attached to and detached from the watch case 10. Furthermore, by tilting the guide holes 36, 46 and fixing holes 37, 47 formed in each of the pin components 30, 40 relative to the Y-axis direction extending from the first pin 35 and the second pin 45, when the end member 5 is installed on the watch case 10 by moving each of the pin components 30, 40 towards the lug 15, the frame 20 can be pressed against the body 11 of the watch case 10. This prevents gaps and loosening between the end member 5 and the watch case 10, improving the appearance.

[0085] When the operating component 50 moves forward and backward along the length of the watchband 3, the first guide surface 54 and the second guide surface 55, which are inclined relative to the width and length directions of the watchband 3, abut against the first inclined surface 32 and the second inclined surface 42 by means of the spring 71. Therefore, each pin component 30, 40 can move in the width direction of the watchband 3. Thus, a structure that allows each pin component 30, 40 to move in conjunction with the operating component 50 can be realized with a simple structure, and the number of components can be reduced. Therefore, a structure suitable for the watchband 3 of the watch 1 can be realized at low cost.

[0086] The guide portion, consisting of guide holes 36 and 46 and guide pin 24, guides the first pin component 30 and the second pin component 40 to move between the engaged position and the disengaged position. This can be achieved with a simple structure and in a space-saving manner, thus enabling the construction of a watch strap suitable for the watch 1 to be realized at low cost.

[0087] Since the guide holes 36 and 46 are arc-shaped, it is easy to insert the first pin 35 and the second pin 45 of each pin component 30 and 40 into the first engagement hole 16 and the second engagement hole 17, and it can increase the force of pressing the frame 20 against the watch case 10 after the first pin 35 and the second pin 45 are engaged with the first engagement hole 16 and the second engagement hole 17.

[0088] The frame 20 and the pressure plate 60 can reliably hold the pin parts 30, 40 and the operating parts 50, and can prevent the pin parts 30, 40 and the operating parts 50 from being exposed to the outside, thus forming a simple appearance and improving aesthetics.

[0089] [Second Implementation]

[0090] Reference Figures 7-10 The second embodiment of the present invention will be described.

[0091] The second embodiment differs from the first embodiment in the structure of the end member 5B. For example... Figure 7 As shown, the end member 5B is configured to have a frame 20B, a first pin member 30B, a second pin member 40B, and an operating member 80B.

[0092] The frame 20B differs from the frame 20 of the first embodiment in the shape of the two ends of the engaging part 23, but otherwise the structure is the same, so the same reference numerals are used and the description is omitted.

[0093] The first pin component 30B and the second pin component 40B differ from the first pin component 30 and the second pin component 40 of the first embodiment in that they have a smaller thickness, but otherwise they have the same structure, so they are labeled with the same reference numerals and the description is omitted.

[0094] In addition, similar to the first embodiment, springs 71 are respectively provided in the first pin component 30B and the second pin component 40B to apply force to the first pin component 30B and the second pin component 40B in a direction that brings them closer to each other.

[0095] like Figure 7 as well as Figure 8As shown, the operation member 80B is an integrated structure that combines the operation member 50 of the first embodiment and the pressure plate 60. That is, the operation member 80B has an operation plate portion 81, a pair of pressure plate portions 82, a pair of elongated holes 83 formed in each pressure plate portion 82, and an operation body portion 90 integrally formed on the surface of the operation plate portion 81 on the side near the base portion 21.

[0096] The control panel 81 is a part with the word "PULL" engraved on it for users to slide.

[0097] A pair of pressure plate portions 82 extend from the operation plate portion 81 to the left and right ends respectively, covering the first pin component 30B and the second pin component 40B respectively. In addition, the end face of the pressure plate portion 82 on the side of the watch case 10 is formed to abut against the abutment surface 235, the inclined surface 236, and the flat surface 237 of the engaging portion 23.

[0098] A pair of elongated holes 83 are formed by extending along the X-axis and penetrating the pressure plate portion 82. Screws 68 are respectively disposed in each elongated hole 83, and the operating member 80B is configured to be movable in the X-axis direction.

[0099] like Figure 8 As shown, the operating body 90 has a first guide surface 91, a second guide surface 92, an abutment surface 93, and a retaining groove 94. The operating body 90 is disposed between a pair of guide walls 221 and is configured to be movable along the guide walls 221 in the X-axis direction.

[0100] The first guide surface 91 is the same as the first guide surface 54, and is located on the side of the operating main body 90 opposite to the first inclined surface 32 of the first pin member 30B. The second guide surface 92 is the same as the second guide surface 55, and is located on the side of the operating main body 90 opposite to the second inclined surface 42 of the second pin member 40B. Therefore, the first guide surface 91 and the second guide surface 92 are inclined towards each other in the X-axis direction as they move from the connecting part 22 side towards the engaging part 23 side.

[0101] The contact surface 93 is the side surface of the operating body 90 that faces the contact surface 235. The retaining groove 94 is a groove in the operating body 90 that opens to the bottom surface of the base 21 and the connecting part 22 along the X-axis.

[0102] A spring 95, serving as a third force-applying component, is disposed in the retaining groove 94. The spring 95 is a compression coil spring, positioned between the retaining groove 94 and the connecting wall 222, and applies force to the operating member 80B towards the engaging portion 23. Furthermore, the force of the spring 95 is preferably a force capable of moving the operating member 80B towards the first position, i.e., the direction in which the pin members 30 and 40 separate from each other; for example, it can be a force greater than the combined force of the two springs 71.

[0103] [Sequence of loading and unloading operations for end components]

[0104] In the end member 5B of the second embodiment, such as Figure 9 As shown, when the user operates the operation plate 81 of the operation component 80B, causing the operation component 80B to slide and move in the direction marked "PULL," i.e., towards the block 4 side of the watch strap 3, and move to the second position, the abutting positions of the first guide surface 91 and the second guide surface 92 of the operation body 90 move towards the base end sides of the first inclined surface 32 and the second inclined surface 42 of the first pin component 30B and the second pin component 40B. Therefore, the first pin component 30B and the second pin component 40B move towards each other by means of the force of the spring 71, and the first pin 35 and the second pin 45 move to the release position, disengaging from the first engagement hole 16 and the second engagement hole 17. Therefore, the user can remove the end member 5B from the watch case 10.

[0105] On the other hand, when the end member 5B is installed on the watch case 10, such as Figure 9 As shown, the operation plate 81 is slidably moved toward the block 4 side of the watch strap 3 to move the operation member 80B to the second position. With the first pin 35 and the second pin 45 not protruding from the side of the end member 5B, the end member 5B is positioned between the lugs 15.

[0106] Next, when the user removes their hand from the control panel 81, the operating component 80B moves toward the watch case 10 by means of the spring 95. Alternatively, the user can also move the control panel 81 toward the watch case 10 at this time.

[0107] When the operating component 80B moves to the first position on the side of the watch case 10, as Figure 10 As shown, the abutting positions of the first guide surface 91 and the second guide surface 92 of the operating main body 90 move toward the front end sides of the first inclined surface 32 and the second inclined surface 42 of the first pin component 30B and the second pin component 40B. Therefore, the first pin component 30B and the second pin component 40B move in a direction of separation from each other, and the first pin 35 and the second pin 45 move to the engaging position where they engage with the first engaging hole 16 and the second engaging hole 17. Therefore, the end member 5B can be installed on the watch case 10.

[0108] [Effects of the Second Embodiment]

[0109] The operating component 80B according to the second embodiment can achieve the same effect as the first embodiment.

[0110] Furthermore, the operating member 80B has a pressure plate portion 82 that holds each pin member 30B, 40B between itself and the frame 20B, thus reducing the number of parts compared to the first embodiment. In addition, the operating member 80B, which is integrated with the pressure plate portion 82, can be larger in size than the operating member 50, and the entire part is exposed on the back side of the end member 5B, thus improving the user's operability.

[0111] [Variation Example]

[0112] Furthermore, the present invention is not limited to the embodiments described above, and variations and improvements within the scope of achieving the objectives of the present invention are also included in the present invention.

[0113] For example, the structures of the first pin components 30, 30B and the second pin components 40, 40B are not limited to the structures of the above embodiments.

[0114] For example, such as Figure 11 As shown, a first pin member 30C and a second pin member 40C can also be used, which have guide holes 36C and 46C that reverse the orientation of the arc and fixing holes 37C and 47C with tilt angles corresponding to the guide holes 36C and 46C. The guide holes 36C and 46C are configured such that, on the center side of the width direction of the watchband 3, the tilt angle is such that the displacement in the length direction (X-axis) of the watchband 3 is less than the displacement in the width direction (Y-axis) of the watchband 3, and gradually changes to such that, as they approach the outer side (outer surface 31 and 41) of the width direction of the watchband 3, the tilt angle becomes less than the displacement in the length direction of the watchband 3. The tilt angle of the fixing holes 37C and 47C is set to be approximately the same angle as the end side of the guide holes 36C and 46C on the outer surface 31 side. By using such first pin members 30C and second pin members 40C, the design variations can be expanded.

[0115] In addition, such as Figure 12 As shown, a first pin component 30D and a second pin component 40D with straight guide holes 36D and 46D and fixing holes 37D and 47D can also be used. Compared with the case where the first pin component 30D and the second pin component 40D are machined into an arc shape, the guide holes 36D and 46D are easier to machine, thus reducing costs.

[0116] Furthermore, the guide hole can also be a combination of straight lines and arcs. That is, as shown below. Figure 4 , 5 As shown, the range in which the guide pin 24 moves within the guide holes 36 and 46 is only a part. Therefore, it is also possible that the range in which the guide pin 24 moves is formed in an arc shape, while the other part of the configuration spring 71 is formed in a straight line shape.

[0117] In the above embodiments, guide pins 24 are provided in the frames 20 and 20B, and guide holes 36 and 46 are formed in the first pin parts 30 and 30B and the second pin parts 40 and 40B. Alternatively, guide grooves can be formed in the base 21 of the frames 20 and 20B, and guide pins guided by the guide grooves can be provided in the first pin parts 30 and 30B and the second pin parts 40 and 40B.

[0118] Furthermore, guide grooves can be formed on the pressure plate 60 and the operating component 80B, and guide pins can be provided on both sides of the first pin component 30, 30B and the second pin component 40, 40B.

[0119] In the end member 5 of the first embodiment, the operating member 50 is moved toward the watch case 10 by the user's operation. However, similar to the second embodiment, a spring can be provided to apply force to the operating member 50 toward the watch case 10, and the movement is achieved by the force of the spring. In this case, a compression coil spring can be provided between the operating member 50 and the connecting part 22 to apply force to the operating member 50 toward the watch case 10, or a tension coil spring can be provided between the operating member 50 and the engaging part 23 to pull the operating member 50 toward the watch case 10. Alternatively, a tension coil spring can be provided between the first pin members 30, 30B and the second pin members 40, 40B.

[0120] The end component of the watch strap 3 is not limited to end members 5 and 5B. For example, in a watch strap that does not have end members, a block provided at the end of the watch strap 3 may be used instead of end members.

[0121] The structure that enables the first pin component, the second pin component, and the operating component to move in a coordinated manner is not limited to the structure described in the above embodiment. For example, a linkage mechanism or the like can also be used.

[0122] In the first embodiment described above, a pressure plate 60 is provided, but it may not be provided. For example, it may be configured such that screws are inserted into the guide holes 36, 46 and fixing holes 37, 47 of each pin component 30, 40 and screwed into the frame 20, and the base plate portion 51 of the operating component 50 is disposed between the base portion 21 of the frame 20 and each pin component 30, 40 without providing a pressure plate 60, and each pin component 30, 40 and the operating component 50 can be held in the frame 20.

[0123] [Summary of this invention]

[0124] The watch strap of the present invention is characterized in that it is mounted on a watch case, the watch case having a first engaging hole and a second engaging hole facing each other, the watch strap having a strap body and an end member disposed at an end of the strap body, the end member having: a first pin member having a first pin engaging with the first engaging hole; a second pin member having a second pin engaging with the second engaging hole, and disposed spaced apart from the first pin member in the width direction of the watch strap; an operating member that moves between a first position and a second position; a frame that holds the first pin member, the second pin member, and the operating member; and a guide portion that guides the first pin member and the second pin member to move the first pin member and the second pin member relative to the frame between an engaged position and a disengaged position, the frame having: an engaging portion, which... The watch strap engages with the watch case; and a connecting portion is separately disposed from the engaging portion along the length of the watch strap and connected to the watch strap body. When the operating component is moved to the first position, the first pin component and the second pin component move to the engaging position. When the operating component is moved to the second position, the first pin component and the second pin component move to the disengaged position. The engaging position is where the first pin and the second pin are located on the outer side of the frame in the width direction of the watch strap, and are located closer to the connecting portion than the disengaged position in the length direction of the watch strap perpendicular to the width direction. The disengaged position is where the first pin and the second pin are located on the inner side of the frame in the width direction, and are located closer to the engaging portion than the engaging position in the length direction.

[0125] According to the watch strap of the present invention, by moving the operating component to the first position, the first pin component and the second pin component can be moved to the engaged position, and by moving the operating component to the second position, the first pin component and the second pin component can be moved to the disengaged position. Therefore, by operating the operating component, the user can switch between a state in which the end component is installed in the housing by engaging each pin component with each engagement hole of the housing, and a state in which the end component is removed from the housing by removing each pin component from each engagement hole of the housing. The user of the watch can easily attach and detach the watch strap.

[0126] Furthermore, when each pin component moves between the engaged and disengaged positions, each pin component moves relative to the frame in the width direction of the watch band, and also in the length direction of the watch band, i.e., towards the engaged portion of the frame and towards the connecting portion of the frame. Since the engaged position of the first and second pin components is closer to the connecting portion than the disengaged position, when the first and second pin components move from the disengaged position to the engaged position, they move relative to the frame away from the watch case. Therefore, taking the first and second pin components engaged with the watch case as a reference, when the first and second pin components move from the disengaged position to the engaged position, the frame moves relative to the first and second pin components towards the watch case. Therefore, even if there are deviations in the components, the frame of the end component is pressed against the watch case with force in the direction of the engaged portion, preventing loosening or gaps between the frame of the end component and the watch case, and improving the appearance.

[0127] In the watch strap of the present invention, preferably, the watch strap has a force-applying member held between the first pin member and the second pin member, the operating member being disposed between the first pin member and the second pin member, having a first guide surface and a second guide surface inclined relative to the width direction and the length direction of the watch strap, the first pin member having a first inclined surface facing the first guide surface, the second pin member having a second inclined surface facing the second guide surface, the force-applying member causing the first inclined surface to abut against the first guide surface, and causing the second inclined surface to abut against the second guide surface.

[0128] According to the watchband of the present invention, when the operating member moves forward and backward in the length direction of the watchband, the first guide surface and the second guide surface, which are inclined relative to the width direction and the length direction of the watchband, abut against the first inclined surface and the second inclined surface by means of a force-applying member, thereby enabling each pin member to move in the width direction of the watchband. Therefore, a structure that allows each pin member to move in conjunction with the operating member can be realized with a simple structure, and the number of parts can also be reduced, thus enabling a watchband structure suitable for watches to be realized at low cost.

[0129] In the watch strap of the present invention, preferably, the first pin component and the second pin component have guide holes extending in the width direction and the length direction of the watch strap, the frame has a guide pin inserted into the guide hole, and the guide portion is composed of the guide hole and the guide pin.

[0130] According to the present invention, the watch strap is configured with a guide hole and a guide pin to guide the first pin member and the second pin member to move between an engaged position and an unengaged position. Therefore, it can be implemented with a simple structure and in a space-saving manner, and thus a watch strap suitable for watches can be implemented at low cost.

[0131] Furthermore, since the movement trajectory of each pin component can be set according to the shape of the guide hole, the movement trajectory can be easily set by simply using the shape of the guide hole, such that the pins of each pin component can be easily inserted into the locking holes of the watch case, and the force pressing the frame against the watch case can be increased after the pins are engaged in the locking holes.

[0132] In the watch strap of the present invention, it is preferable that the guide hole is formed in an arc shape such that the displacement of the watch strap in the width direction is greater than the displacement in the length direction as it moves outward toward the outer side of the width direction.

[0133] According to the watch strap of the present invention, the guide hole is arc-shaped, which is such that the displacement of the watch strap in the width direction is greater than the displacement in the length direction as it moves outward toward the outer side of the width direction. Therefore, it is easy to insert the pins of each pin component into the engagement hole of the watch case, and the force pressing the frame against the watch case can be increased after the pins are engaged in the engagement hole.

[0134] In the watch strap of the present invention, preferably, the watch strap has a pressure plate that is fixed to the frame by means of screws, and the first pin component, the second pin component, and the operating component are disposed between the frame and the pressure plate.

[0135] According to the watch strap of the present invention, the pin components and operating components can be reliably held in place by means of the frame and the pressure plate. In addition, since the pin components and operating components are arranged between the frame and the pressure plate, the pin components and operating components can be prevented from being exposed, resulting in a simple appearance and improved aesthetics.

[0136] In the watch strap of the present invention, preferably, the operating member is configured such that a second force-applying member disposed between the frame and the operating member applies force to the pressure plate side, and the operating member is pressed into the frame side against the force of the second force-applying member, the operating member is movable between a first position and a second position, and the operating member has a movement limiting part, which engages with the pressure plate to limit the movement of the operating member to the second position when the operating member is in the first position and is applied force by the second force-applying member.

[0137] According to the present invention, the watch strap can move between a first position and a second position only when the user presses in the operating component. When the operating component is in the first position, i.e., when each pin component is in the engaged position, the movement limiting part of the operating component is engaged with the pressure plate by the force of the second force-applying component, thus restricting the movement of the operating component to the second position; that is, restricting the movement of the pin components from the engaged position to the disengaged position. Therefore, when the watch strap is installed in the watch case, the installation state of the watch strap can be reliably maintained as long as the user does not operate the operating component. When disassembly is required, simply pressing in the operating component and moving it to the second position allows for disassembly through a simple operation.

[0138] In the watch strap of the present invention, preferably, the operating member has a pressure plate portion and an elongated hole extending along the length direction of the watch strap, the operating member is fixed to the frame by means of a screw disposed in the elongated hole, and the first pin portion and the second pin portion are disposed between the frame and the pressure plate portion.

[0139] According to the watch strap of the present invention, the operating component has a pressure plate portion that holds each pin component between itself and the frame, thus reducing the number of components compared to cases where the operating component and pressure plate are composed of different components. Furthermore, the operating component, being integral with the pressure plate portion, can be enlarged, thereby improving user operability.

[0140] In the watch strap of the present invention, preferably, the watch strap has a third force-applying member disposed between the frame and the operating member, which applies force to the operating member in a direction that moves it toward the first position.

[0141] According to the watchband of the present invention, if the user moves the operating member to the second position by overcoming the force of the third force-applying member, each pin member can be moved to the disengaged position. Furthermore, if the user releases the operation of the operating member, the state in which the operating member was moved to the first position by means of the force of the third force-applying member can be maintained, and each pin member can also be maintained in the engaged position. Therefore, the user only needs to operate the operating member to move the pin members to the disengaged position; as long as the user does not operate the operating member, the watchband's installation state can be reliably maintained.

[0142] The watch of the present invention is characterized in that it has the aforementioned watch strap.

[0143] According to the present invention, the watch, having the aforementioned strap, can achieve the aforementioned effect, reducing looseness or gaps between the end of the strap and the case, thereby improving the appearance.

[0144] The clock of the present invention is characterized in that it comprises: a clock case having a first engaging hole and a second engaging hole opposite to each other; and a watch strap having a watch strap body and an end member, the end member being disposed at the end of the watch strap body and mounted on the clock case, the end member having: a first pin member having a first pin capable of engaging with the first engaging hole; a second pin member having a second pin capable of engaging with the second engaging hole, and being disposed spaced apart from the first pin member in the width direction of the watch strap; an operating member movable between a first position and a second position; and a frame holding the first pin member, the second pin member, and the operating member, wherein the first pin member and the second pin member are configured such that: when the operating member is moved to the first position, the first pin member and the second pin member can move to an engaging position engaging with the first engaging hole and the second engaging hole, and when the operating member is moved to the second position, the first pin member and the second pin member can move to a disengaged position not engaging with the first engaging hole and the second engaging hole.

[0145] According to the present invention, by moving the operating component to the first position, the first pin component and the second pin component can be moved to the engaged position, and by moving the operating component to the second position, the first pin component and the second pin component can be moved to the disengaged position. Therefore, by operating the operating component, the user can switch between a state in which the end component is installed in the housing by engaging each pin component with each engagement hole of the housing, and a state in which the end component is removed from the housing by removing each pin component from each engagement hole of the housing. The user of the watch can easily attach and detach the watch strap.

[0146] Furthermore, when each pin component moves between the engaged and disengaged positions, it moves in the width direction of the watch band, and also in the length direction of the watch band, i.e., both away from and towards the watch case. Since the engaged position of the first and second pin components is farther from the watch case than their disengaged position, when the first and second pin components move from the disengaged position to the engaged position, they move relative to the frame in a direction away from the watch case. Therefore, taking the first and second pin components engaged with the watch case as a reference, when the first and second pin components move from the disengaged position to the engaged position, the frame moves relative to the first and second pin components in a direction closer to the watch case. Thus, the frame of the end component applies force in the direction it is pressed against the watch case, preventing loosening or gaps between the frame of the end component and the watch case even if there are component deviations, and also improving the appearance.

Claims

1. A watch strap, characterized in that, The watch strap is mounted on the watch case, which has a first locking hole and a second locking hole that are opposite each other. The watch strap has a watch strap body and an end component disposed at the end of the watch strap body. The end component has: A first pin component having a first pin that engages with the first engagement hole; The second pin component has a second pin that engages with the second engagement hole and is arranged at a distance from the first pin component in the width direction of the watch strap; An operating component that moves between a first position and a second position; The frame holds the first pin component, the second pin component, and the operating component; as well as A guide portion guides the first and second pin components to move relative to the frame between an engaged position and a disengaged position. The frame has: The engaging part engages with the watch case; and A connecting part, which is separately disposed from the engaging part along the length of the watch strap, and connected to the watch strap body, When the operating component is moved to the first position, the first pin component and the second pin component move to the engaged position; when the operating component is moved to the second position, the first pin component and the second pin component move to the disengaged position. The engagement position is located on the outer side of the frame of the first and second pins in the width direction of the watch strap, and closer to the connecting portion in the length direction of the watch strap perpendicular to the width direction than the disengagement position. The release position is located in the width direction where the first pin and the second pin are positioned inwards from the side of the frame, and in the length direction, it is located closer to the engaging portion than the engaging position. The first pin component and the second pin component have guide holes extending in the width direction and the length direction of the watch strap. The frame has a guide pin that is inserted into the guide hole. The guide portion is composed of the guide hole and the guide pin.

2. The watch strap according to claim 1, characterized in that, The watch strap has a force-applying member that is held in place by the first pin member and the second pin member. The operating component is disposed between the first pin component and the second pin component, and has a first guide surface and a second guide surface that are inclined relative to the width direction and the length direction of the watch strap. The first pin component has a first inclined surface facing the first guide surface. The second pin component has a second bevel facing the second guide surface. The force-applying component causes the first inclined surface to abut against the first guide surface, and the second inclined surface to abut against the second guide surface.

3. The watch strap according to claim 1, characterized in that, The guide hole is formed in the following arc shape: as it moves outward in the width direction of the watch strap, the displacement in the width direction of the watch strap is greater than the displacement in the length direction of the watch strap.

4. The watch strap according to claim 1 or 2, characterized in that, The watch strap has a pressure plate that is fixed to the frame by screws. The first pin component, the second pin component, and the operating component are disposed between the frame and the pressure plate.

5. The watch strap according to claim 4, characterized in that, The operating component is configured as follows: A second force-applying component, positioned between the frame and the operating component, applies force to the pressure plate side. When the operating component is pressed against the frame side against the force of the second force-applying component, the operating component can move between the first position and the second position. The operating component has a movement limiting part, which engages with the pressure plate to restrict the movement of the operating component to the second position when the operating component is in the first position and is subjected to force by the second force-applying component.

6. The watch strap according to claim 1 or 2, characterized in that, The operating component has a pressure plate portion and an elongated hole extending along the length of the watch strap. The operating component is fixed to the frame by means of screws disposed in the elongated hole. The first pin component and the second pin component are disposed between the frame and the pressure plate portion.

7. The watch strap according to claim 6, characterized in that, The watch strap has a third force-applying component disposed between the frame and the operating component, which applies force to the operating component in a direction that moves it toward the first position.

8. A clock, characterized in that, The watch has a strap as described in any one of claims 1-7.

9. A clock, characterized in that, The clock has the following features: The watch case has a first engagement hole and a second engagement hole that are opposite each other; and The watch strap has a main body and end components, the end components being disposed at the end of the main body and mounted on the watch case. The end component has: The first pin component has a first pin capable of engaging with the first engagement hole; The second pin component has a second pin capable of engaging with the second engagement hole, and is arranged at a distance from the first pin component in the width direction of the watch strap; An operating component that can move between a first position and a second position; The frame holds the first pin component, the second pin component, and the operating component; as well as A guide portion guides the first and second pin components to move relative to the frame between an engaged position and a disengaged position. The first pin and the second pin are configured such that when the operating component is moved to a first position, the first pin and the second pin can move to an engaged position that engages with the first engaging hole and the second engaging hole; and when the operating component is moved to a second position, the first pin and the second pin can move to a disengaged position that does not engage with the first engaging hole and the second engaging hole. The first pin component and the second pin component have guide holes extending in the width direction and the length direction of the watch strap. The frame has a guide pin that is inserted into the guide hole. The guide portion is composed of the guide hole and the guide pin.

Images