Wrist-mounting device, watch, end cap component, method for manufacturing a wrist-mounting device

Abstract

The end cap components and exterior parts are secured to the case with a minimal number of parts. [Solution] The watch 100 comprises a cylindrical case body 2 oriented in the Z direction, a frame-shaped member 3 positioned above the case body 2, end hooks 4 attached to both sides of the frame-shaped member 3 in the Y direction perpendicular to the first Z direction, and an exterior member 5 positioned above the frame-shaped member 3 to which the end hooks 4 are attached and the case body 2. The case body 2 and the exterior member 5 are fixed together by fastening members 74, and the frame-shaped member 3 is fixed by being sandwiched between the case body 2 and the exterior member 5, at least in part.

Description

Technical Field

[0001] The present invention relates to a wrist-worn device, a watch, a lugs component, and a method for manufacturing a wrist-worn device.

Background Art

[0002] In a wrist-worn device such as a wristwatch, a structure is known in which a lugs component that supports a band is fixed to a case with a fastening member such as a screw component or a spring bar (see, for example, Patent Document 1). However, when attaching an exterior member such as a bezel in such a structure, a fastening member for fixing the exterior member to the case is further required.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to fix a lugs component and an exterior member to a case with a small number of parts.

Means for Solving the Problems

[0005] To achieve the above object, the wrist-worn device of the present invention includes a cylindrical case body along a first direction, a frame member disposed on one side of the first direction with respect to the case body, lugs components attached to both sides of the frame member in a second direction orthogonal to the first direction, an exterior member disposed on the one side of the frame member to which the lugs components are attached and the case body, and is provided with the case body and the exterior member are fixed with a fastening member, The frame-shaped member is fixed by being sandwiched between the case body and the exterior member, at least in part. [Effects of the Invention]

[0006] According to the present invention, the end cap component and the exterior component can be fixed to the case with a small number of parts. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view of the main part of the clock according to the embodiment. [Figure 2] This is an exploded perspective view of the main part of the clock according to the embodiment. [Figure 3] This is a partial cross-sectional view of the clock according to the embodiment, in the 12 o'clock to 6 o'clock direction. [Figure 4] This is a perspective view of the end cap component according to the embodiment. [Figure 5] This is a diagram illustrating the first step in the assembly procedure of a clock according to an embodiment. [Figure 6] This is a diagram illustrating the first step in the assembly procedure of a clock according to an embodiment. [Figure 7] This is a diagram illustrating the first step in the assembly procedure of a clock according to an embodiment. [Figure 8] This is a diagram illustrating the first step in the assembly procedure of a clock according to an embodiment. [Figure 9] This is a diagram illustrating the second step in the assembly procedure of the clock according to the embodiment. [Figure 10] This is a diagram illustrating the second step in the assembly procedure of the clock according to the embodiment. [Figure 11] This is a diagram illustrating the third step in the assembly procedure of the clock according to the embodiment. [Figure 12] This is a diagram illustrating the third step in the assembly procedure of the clock according to the embodiment. [Figure 13] This is a diagram illustrating the fourth step in the assembly procedure of the clock according to the embodiment. [Figure 14] This is a perspective view of the main part of the clock according to the embodiment. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will now be described with reference to the drawings. As shown in Figures 1 to 3, the watch 100 according to this embodiment is a wristwatch worn on the user's wrist and is an example of an arm-mounted device according to the present invention. Specifically, the watch 100 comprises a case body 2, a frame-shaped member 3, a lug part 4, and an exterior member 5. In the following description, the X, Y, and Z directions of the watch 100 refer to the directions shown in each figure. That is, the X direction refers to the 3 o'clock to 9 o'clock direction in an analog watch, the Y direction (second direction) refers to the 12 o'clock to 6 o'clock direction, and the Z direction (first direction) refers to the front to back (back) direction of the watch 100 (case body 2). Of the Z directions, the front side, which is the viewing side, is called the "upper side (upwards)," and the back side is called the "lower side (downwards)." Furthermore, the direction perpendicular to the central axis Ax of the case body 2 along the Z direction is called the "radial direction," and the rotational direction around the central axis Ax is called the "circumferential direction." Within a plane perpendicular to the central axis Ax, the side closer to the central axis Ax is called the "inside (inner diameter side)," and the side further away is called the "outside (outer diameter side)."

[0009] The case body 2 is formed in a substantially cylindrical shape along the Z direction, and the opening on the back (bottom) side is closed by the back cover 24. The material of the case body 2 is, for example, a metal such as titanium or stainless steel, or a hard resin such as carbon or diamide. The watch module 10 is housed inside the case body 2. The watch module 10 includes, for example, a time display unit for displaying the time, a battery for power supply, a circuit board on which a control circuit is mounted, etc. Note that the top view shape of the case body 2 is not limited to a circular shape, but may be a polygonal shape such as a square.

[0010] On both side surfaces 25a in the Y direction of the case body 2, a plurality (three in this embodiment) of protrusions (pins) 25b are formed. Each side surface 25a is formed in a substantially planar shape orthogonal to the Y direction, and the plurality of protrusions 25b are arranged side by side substantially along the X direction on each side surface 25a. Each protrusion 25b is formed, for example, in a triangular cross-sectional shape and extends along the Z direction. As will be described later, each protrusion 25b presses and fixes the frame member 3 and the front can part 4.

[0011] The frame member 3 is a component that supports the front can part 4. The frame member 3 is formed in an annular shape corresponding to the shape of the case body 2 in a top view and is arranged above the case body 2. The material of the frame member 3 is a hard resin such as carbon or diamide. It is preferable that the frame member 3 is formed of a material softer than the front can part 4.

[0012] Of the frame member 3, both sides in the Y direction are support portions 31 that support the front can part 4. The support portions 31 are formed in a rod shape substantially along the X direction. Of the frame member 3, the central portion in the Y direction and both sides in the X direction are side portions 32 that are substantially along the Y direction in a top view. Of the side portions 32, the side portion 32a on the 9 o'clock side is formed in a rod shape substantially along the Y direction, and the side portion 32b on the 3 o'clock side is formed in a curved rod shape that bulges upward corresponding to the fuse 71. The portion of the frame member 3 that connects the support portion 31 and the side portion 32 is a curved portion 33 formed in a curved rod shape that bulges upward. The curved portion 33 protrudes above the support portion 31 and the side portion 32, and the frame member 3 is formed in a shape that undulates in the vertical direction as a whole. The curved portion 33 extends obliquely so as to be gradually located inside in the X direction as it goes toward the outside in the Y direction in a top view. Further, the curved portion 33 is arranged at a position corresponding to the button mounting portion 26 that supports the operation button 72 of the case body 2 and protrudes to the outer peripheral side of the exterior member 5.

[0013] The front can part 4 is a part that supports the band 6 and is attached to both sides of the frame-shaped member 3 in the Y direction. The material of the front can part 4 is a metal such as titanium or stainless steel. Specifically, as shown in FIG. 4, the front can part 4 has a base part 41, two first leg parts 42, two convex parts 43, two second leg parts 44, and two pedestal parts 45.

[0014] The base part 41 is formed in a shape that extends substantially along the X direction. The two first leg parts 42 extend obliquely from both ends of the base part 41 in the X direction, with at least a part being inclined. Specifically, each first leg part 42 extends so as to be gradually positioned on the outer side in the X direction as it goes toward the inner side in the Y direction in a top view, and obliquely extends so as to be gradually positioned downward as it goes toward the inner side in the Y direction when viewed from the X direction. The two convex parts 43 are provided at the tips of the two first leg parts 42. Each convex part 43 protrudes outward in the X direction from the tip (lower end) of the first leg part 42. A locking part 43a that protrudes upward is provided at the tip on the outer side in the X direction of each convex part 43. The two second leg parts 44 extend downward from both ends of the base part 41 in the X direction, on the outer side in the Y direction rather than the first leg parts 42. The two pedestal parts 45 are provided at the tips of the two second leg parts 44. Springs (not shown) are attached to the surfaces on the inner side in the X direction, facing each other in the X direction, of the two pedestal parts 45 along the X direction, and the band 6 is fixed to the springs. Each pedestal part 45 protrudes substantially parallel to the X direction outward in the X direction from the tip (lower end) of the second leg part 44. The specific assembling state and assembly procedure of the front can part 4 will be described later.

[0015] As shown in Figures 1 to 3, the exterior member 5 is formed in an annular shape corresponding to the shape of the case body 2 when viewed from above, and is positioned on the upper side of the case body 2. The material of the exterior member 5 is, for example, a metal such as titanium or stainless steel, or a hard resin such as carbon. On the inner diameter side of the exterior member 5, a retaining member 51 into which the windshield member 23 is fitted is positioned via a cushioning member 53 such as a gasket. The retaining member 51 is positioned on the upper side of the case body 2 with a cushioning member 52 such as an O-ring interposed between it and the case body 2. The exterior member 5 sandwiches the retaining member 51 in the vertical direction between itself and the case body 2. In addition, the exterior member 5 sandwiches the side portion 32 of the central part in the Y direction of the frame-shaped member 3 in the vertical direction between itself and the case body 2. However, it is sufficient for the exterior member 5 and the case body 2 to sandwich at least a part of the frame-shaped member 3. Furthermore, the exterior member 5 is located above the stepped portion 41a at the inner end of the base portion 41 of the front end component 4, and restricts the upward movement (rotation) of the front end component 4. The top view shape of the exterior member 5 only needs to correspond to the case body 2.

[0016] Next, the assembly procedure for the watch 100 will be explained. Note that the installation of the watch module 10, case back 24, crown 71, and operating buttons 72 will not be explained. First, the end link parts 4 are assembled to each support part 31 of the frame-shaped member 3 (first step). Here, as shown in Figure 5, the end link parts 4 are assembled to the support parts 31 from the inside of the frame-shaped member 3 by inserting the two first legs 42 under the two curved parts 33 of the frame-shaped member 3 and positioning the base 41 above the support part 31. Then, as shown in Figure 6, the end link parts 4 are rotated in a direction that moves the second legs 44 downward around the X axis. As a result, as shown in Figures 7 and 8, the end link parts 4 are assembled to the frame-shaped member 3 with the upper surface of each convex part 43 and the lower surface of the curved part 33, or the inner surface of each base part 45 and the outer surface of the support part 31 in contact, and the lower surface of the base 41 in contact with the upper surface of the support part 31. At this time, the locking portion 43a at the tip of each convex portion 43 is locked to the outer surface of the curved portion 33.

[0017] Next, as shown in Figure 9, the frame-shaped member 3 with the two end-ring parts 4 assembled is attached to the case body 2 (second step). Here, with the two end-ring parts 4 positioned on both sides in the Y direction, the frame-shaped member 3 is attached to the case body 2 from above (front side). At this time, as shown in Figure 10, the multiple protrusions 25b formed on both sides 25a of the case body 2 press the support portion 31 of the frame-shaped member 3 and the base portion 41 of the end-ring parts 4 outwards. As a result, the frame-shaped member 3 and the end-ring parts 4 are pressed on both sides in the Y direction, and the frame-shaped member 3 and the end-ring parts 4 are firmly fixed (temporarily fixed) to the case body 2.

[0018] Next, as shown in Figure 11, the exterior member 5 is assembled to the case body 2 (third step). Here, the retaining member 51 with the windshield member 23 fitted to it is attached to the exterior member 5 in advance. Then, with the cushioning member 52 (not shown in Figure 11) placed on the case body 2, the exterior member 5 is attached to the case body 2 and the frame-shaped member 3 from above (front side). As a result, the frame-shaped member 3 is fixed by being sandwiched vertically between the exterior member 5 and the case body 2 at the side portion 32 of the central part in the Y direction. Also, as shown in Figure 12, the exterior member 5 is positioned above the stepped portion 41a of the end hook part 4, restricting the upward movement (rotation) of the end hook part 4. At this time, the exterior member 5 may be temporarily fixed to the case body 2 by adhesive or the like.

[0019] Next, as shown in Figure 13, the case body 2 and the exterior member 5 are fixed together from the back side with multiple fastening members 74 (fourth step). This completes the assembly of the main parts of the watch 100, as shown in Figure 14. Then, the band 6 is attached to the two end lug parts 4 via spring bars (not shown). This completes the assembly of the main parts of the watch 100.

[0020] As described above, according to this embodiment, the case body 2 and the exterior member 5 are fixed together by the fastening member 74, and the frame-shaped member 3 is fixed by being sandwiched between the case body 2 and the exterior member 5, at least a portion of which is sandwiched between them. In other words, by fixing the case body 2 and the exterior member 5 together by the fastening member 74, the frame-shaped member 3 is fixed by being sandwiched between them, and the front hook component 4 is fixed to the frame-shaped member 3. This eliminates the need for a fastening member to fix the front hook component, unlike when the front hook component and the exterior member are individually fixed to the case with fastening members. Therefore, the front hook component 4 and the exterior member 5 can be fixed to the case body 2 with a small number of parts. Furthermore, by eliminating the need for fastening members, cost reduction, increased design flexibility, and miniaturization of the front hook component 4 can be expected.

[0021] Furthermore, according to this embodiment, the frame-shaped member 3 has a side portion 32 located in the center in the Y direction that is sandwiched between the case body 2 and the exterior member 5. This allows for effective mitigation of impact. That is, for example, if the watch 100 is subjected to an impact from the front due to being dropped, a greater impact is transmitted to both sides of the frame-shaped member 3 in the Y direction where the end lug component 4 supporting the band 6 is attached. At this time, since the frame-shaped member 3 is supported at the side portion 32 located in the center in the Y direction, it can deform vertically as a whole with the side portion 32 as a fulcrum, thereby effectively mitigating the impact.

[0022] Furthermore, according to this embodiment, the frame-shaped member 3 is formed in a wavy shape in the vertical direction. This allows the frame-shaped member 3 to deform appropriately vertically when it is subjected to an impact from the front, for example, when the clock 100 is dropped, thereby further effectively mitigating the impact.

[0023] Furthermore, according to this embodiment, the end hook component 4 includes a portion located inside the frame-shaped member 3, and a projection 25b is formed on the Y-direction side surface 25a of the case body 2 that presses the frame-shaped member 3 and the end hook component 4 outward in the Y-direction. This allows the end hook component 4 to be pressed against the frame-shaped member 3 while the frame-shaped member 3 is braced outward in the Y-direction, thereby pressing the frame-shaped member 3 and the end hook component 4 together. Therefore, the frame-shaped member 3 and the end hook component 4 can be suitably fixed.

[0024] Furthermore, according to this embodiment, the frame-shaped member 3 is made of a softer material than the end-ring component 4. This allows for suitable support of the end-ring component 4, and improves the ease of assembly between the frame-shaped member 3 and the end-ring component 4 compared to, for example, when the frame-shaped member 3 is made of the same metal as the end-ring component 4. Also, according to this embodiment, since the end-ring component 4 is made of metal, the band 6 can be firmly supported.

[0025] Furthermore, according to this embodiment, the end hook component 4 comprises a base portion 41, first leg portions 42 extending at least partially inclined from both ends of the base portion 41 in the longitudinal direction, a convex portion 43 provided at the tip of the first leg portion 42, second leg portions 44 extending from both ends of the base portion 41 in the longitudinal direction to one side in a direction intersecting the longitudinal direction, and a base portion 45 provided at the tip of the second leg portion 44 and parallel to the longitudinal direction of the base portion 41. This allows the end hook component 4 to be suitably attached to the frame-shaped member 3 by, for example, arranging the base portion 41 along the frame-shaped member 3, intersecting the first leg portions 42 and the second leg portions 44 with the frame-shaped member 3, and contacting or locking the convex portion 43 and the base portion 45 with the frame-shaped member 3. Consequently, while the frame-shaped member 3 is not suitable for directly supporting the band 6 due to its strength limitations, the end-ring component 4 can be suitably attached to the frame-shaped member 3, thereby allowing the band 6 to be suitably supported by the end-ring component 4.

[0026] Furthermore, according to this embodiment, the base portion 41 is positioned on the front side of the frame-shaped member 3, and the convex portion 43 is positioned on the back side of the frame-shaped member 3. This allows the base portion 41 and the convex portion 43 of the end hook component 4 to be intertwined with the top and bottom of the frame-shaped member 3, thereby enabling a more suitable attachment of the end hook component 4 to the frame-shaped member 3.

[0027] It goes without saying that the embodiments to which the present invention can be applied are not limited to those described above, and various modifications are possible without departing from the spirit of the invention. For example, in the above embodiments, a wristwatch was given as an example of a wrist-worn device according to the present invention. However, the present invention is not limited to a wristwatch, and can be broadly applied to wrist-worn devices such as various smartwatches, sports watches and other electronic devices, and wearable devices that acquire not only the time but also biological information such as heart rate and blood flow. [Explanation of symbols]

[0028] 2...Case body, 3...Frame-shaped member, 4...End hook part, 5...Exterior member, 74...Fastening member, 100...Watch

Claims

1. A cylindrical case body aligned in the first direction, A frame-shaped member positioned on one side of the case body in the first direction, A front end component attached to both sides of the frame-shaped member in a second direction perpendicular to the first direction, An exterior member positioned on one side of the frame-shaped member to which the aforementioned end-ring component is attached and the case body, Equipped with, The case body and the exterior member are fixed together by fastening members. The frame-shaped member is fixed by being sandwiched between the case body and the exterior member, at least a portion of it. Arm attachment device.

2. The frame-shaped member is sandwiched between the case body and the exterior member at its central portion in the second direction. The arm-mounted device according to claim 1.

3. The frame-shaped member is formed in a wavy shape in the first direction. The arm-mounted device according to claim 1.

4. The aforementioned end-ring component includes a portion located inside the frame-shaped member, On the side surface of the case body in the second direction, a projection is formed that presses the frame-shaped member and the end-ring component outward from the frame-shaped member in the second direction. The arm-mounted device according to claim 1.

5. The frame-shaped member is formed from a material softer than the end-grip component. The arm-mounted device according to claim 1.

6. The aforementioned end piece is made of metal. The arm-mounted device according to claim 1.

7. A watch comprising a wrist-mounted device according to any one of claims 1 to 6, The aforementioned case body houses the clock module, The frame-shaped member and the exterior member are arranged on the front side of the case body. clock.

8. An end loop component of an arm-mounting device that is attached to a frame-shaped member and supports a band, The base and, First leg portions extending inclined from at least a portion of both ends in the longitudinal direction of the base, A convex portion provided at the tip of the first leg, A second leg portion extends from both ends of the base in the longitudinal direction to one side in a direction intersecting the longitudinal direction, A base portion is provided at the tip of the second leg portion and is parallel to the longitudinal direction of the base portion, A front end component equipped with a hook.

9. The base portion is positioned on the front side of the frame-shaped member. The convex portion is positioned on the back side of the frame-shaped member. The end cap component according to claim 8.

10. A method for manufacturing an arm-mounted device comprising a cylindrical case body oriented in a first direction, A first step involves attaching end-grip components to both sides of the frame-shaped member in a second direction perpendicular to the first direction, A second step is to position the frame-shaped member to which the aforementioned end-ring component is attached on one side in the first direction relative to the case body, A third step involves placing an exterior member on one side of the frame-shaped member and the case body, and sandwiching at least a portion of the frame-shaped member between the case body and the exterior member. A fourth step involves fixing the case body and the exterior member with a fastening member, A method for manufacturing an arm-mounted device, including the device itself.

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