Band and watch
The resin band integrates metal inserts with filling holes to enhance adhesion and resistance to deformation, ensuring a secure and durable attachment to the watch body.
Patent Information
- Application Number
- JP2023113376
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-11
- Publication Date
- 2025-01-24
AI Technical Summary
Existing resin bands for watches face challenges in securely attaching to the watch body due to the difficulty in achieving strong adhesion between insert components made of harder materials and the resin material, leading to potential detachment under stress.
A resin band design where insert components are covered entirely by the resin material, incorporating metal inserts that are reinforced with filling holes, ensuring strong integration and resistance to deformation.
The resin band achieves stable and durable attachment to the watch body, maintaining rigidity and durability even under repeated stress, while minimizing material usage.
Smart Images

Figure 2025011348000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a band and a watch. [Background technology]
[0002] Resin bands molded from various resin materials have been widely used as bands for watches and the like. In bands, the attachment part (connection part) that attaches to the main case of the watch or the like places a heavy load. For this reason, in the case of resin bands, unless the attachment part (connection part) is reinforced, it is difficult to fix the band to the main case firmly and with stable quality.
[0003] In this regard, for example, Patent Document 1 describes how a can member made of a material harder than resin is inserted into one end of a resin (called "urethane" in Patent Document 1) watch band, thereby making the attachment part to the main case (called the "can portion" in Patent Document 1) thin while still providing strength. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 63-140212 Summary of the Invention [Problem to be solved by the invention]
[0005] When inserting a part (referred to as an "insert part") made of a material harder than the resin material into the end of the main body of the band formed from various resins in this manner, it is necessary to firmly bond the insert part to the resin material that constitutes the main body of the band. However, there is a problem in that the adhesiveness between the resin material and the insert part formed of a material harder than the resin material is poor, making it difficult to firmly join them.
[0006] The present invention has been made in consideration of the above circumstances, and has as its object to provide a resin band that can be firmly fixed to a main body case. [Means for solving the problem]
[0007] In order to solve the above problems, the band according to the present invention comprises: A band attached to a main body case, A band body formed of a resin material; an insert part disposed on a mounting side of the band body relative to the main body case; Equipped with The insert part is characterized in that it is entirely covered with the resin material of the band body. Effect of the Invention
[0008] According to the present invention, it is possible to firmly fix the resin band to the main body case. [Brief description of the drawings]
[0009] [Figure 1] FIG. 1 is a schematic plan view of a timepiece according to a first embodiment. [Diagram 2] 1 is a plan view of a main portion of a portion around an attachment portion of a band to a main case according to a first embodiment, as viewed from the front side of the band. [Diagram 3] 1 is a plan view of a main portion of a portion around an attachment portion of a band to a main case according to a first embodiment, as viewed from the back side of the band. [Figure 4] FIG. 2 is a side view of a main part around a portion where the band is attached to the main case according to the first embodiment. [Diagram 5] 1 is a perspective view of a main part of a portion around a portion where the band is attached to a main case according to a first embodiment, as viewed from the front side of the band. FIG. [Figure 6] 3 is an enlarged view of a portion VI enclosed by a dashed line in FIG. 2. [Figure 7] FIG. 5 is an enlarged view of a portion VII enclosed by a dashed line in FIG. [Figure 8] 6 is an enlarged view of a portion VIII enclosed by a dashed line in FIG. 5. [Figure 9] 13 is a plan view of a main portion of the periphery of a portion where the band is attached to the main case according to the second embodiment, as viewed from the front side of the band. FIG. [Figure 10] 13 is a plan view of a main portion of the periphery of a portion where the band is attached to the main case according to the second embodiment, as viewed from the back side of the band. FIG. [Figure 11] FIG. 11 is a side view of a main part around a portion where a band is attached to a main case according to a second embodiment. [Figure 12] 10 is an enlarged view of a portion XII enclosed by a dashed line in FIG. 9. [Figure 13] 12 is an enlarged view of a portion XIII enclosed by a dashed line in FIG. 11. [Figure 14] 13 is a plan view of a main portion of the periphery of a portion where the band is attached to the main case according to the third embodiment, as viewed from the front side of the band. FIG. [Figure 15] 13 is a plan view of the essential parts of the periphery of the attachment portion of the band to the main case according to the third embodiment, as viewed from the back side of the band. FIG. [Figure 16] FIG. 11 is a side view of a main part around a portion where a band is attached to a main case according to a third embodiment. [Figure 17] FIG. 11 is a perspective view of a main part of the periphery of a portion where the band is attached to the main case according to the third embodiment, as viewed from the front side of the band. [Figure 18] 15 is an enlarged view of a portion XVIII enclosed by a dashed line in FIG. 14. [Figure 19] FIG. 17 is an enlarged view of a portion IXX surrounded by a dashed line in FIG. [Figure 20] 18 is an enlarged view of a portion XX surrounded by a dashed line in FIG. 17. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] [First embodiment] A first embodiment of a band and watch according to the present invention will be described with reference to Figs. 1 to 8. In the first embodiment described below, the band is taken as an example to be attached to a wristwatch (hereinafter referred to as "watch 100") worn on the arm. In addition, the first embodiment described below is subject to various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the first embodiment and illustrated examples described below.
[0011] 〔composition〕 FIG. 1 is a schematic plan view of a timepiece equipped with a band according to a first embodiment. As shown in FIG. 1, a watch 100 of the first embodiment includes a watch body 1 and a band 2 connected to a main case 10 of the watch body 1. First, the main body case 10 constituting the watch body 100 is formed in a hollow short column shape. The material from which the main body case 10 is formed is not particularly limited, but it is formed from a hard material such as a hard synthetic resin, such as super engineering plastics such as polyarylate (PAR) or engineering plastics such as polyacetal (POM), or various metals such as titanium or stainless steel (SUS).
[0012] Although not shown, a clock module is housed in the hollow portion of the main body case 10. The clock module includes various components necessary for clock functions, such as a clock movement including an analog display mechanism for moving the hands and a digital display mechanism having a liquid crystal display unit, and a circuit section for controlling the driving of these. In addition, a display section 11 for displaying the time and various information is provided on the surface of the main body case 10. In addition, operating sections such as a crown and push buttons (not shown) are provided on the sides of the main body case 10. It should be noted that FIG. 1 is a schematic illustration of the watch body 1 and does not accurately show the specific shape, configuration, etc.
[0013] As shown in FIG. 1, band attachment portions 12 for connecting a band 2 to the main case 10 are provided on the outer side of the main case 10 at positions corresponding to the 6 o'clock and 12 o'clock sides of an analog watch. The band attachment portion 12 in the illustrated example has a shape in which lugs 121 protrude from both sides in the width direction of the main body case 10, and the attachment portion 22 of the band 2 fits between the lugs 121. Note that the shape of the band attachment portion 12 is not limited to the illustrated example. The band 2 is provided with an attachment portion 22 that matches the shape of the band attachment portion 12.
[0014] As shown in FIG. 1, band 2 is a band that is attached to main case 10, and includes a main band (short band) 2a that is attached to band attachment portion 12 on the 12 o'clock side of an analog watch, and a tip band (long band) 2b that is attached to band attachment portion 12 on the 6 o'clock side. Since the configuration of the attachment portion 22 of the main band 2a and the tip band 2b to the main case 10 is the same, in the following description, the main band 2a and the tip band 2b will not be distinguished from each other and will be simply referred to as "band 2".
[0015] Fig. 2 is a plan view of the main part of the band according to the first embodiment, seen from the front side of the band, around the attachment part of the band to the main case, and Fig. 3 is a plan view of the main part of the band according to the first embodiment, seen from the back side of the band. Fig. 4 is a side view of the main part of the band according to the first embodiment, around the attachment part of the band to the main case, and Fig. 5 is a perspective view of the main part of the band according to the first embodiment, around the attachment part of the band to the main case, seen from the front side of the band. In Fig. 2 and subsequent figures, the band body 20 of the band 2, which will be described later, is indicated by a two-dot chain line, and the insert part 3 is indicated by a solid line.
[0016] As shown in FIGS. 2 to 5, the band 2 includes a band body 20 and an insert part 3. The band body 20 is made of a resin material. Examples of the resin material that can be used to form the band body 20 include relatively soft synthetic resins such as fluororubber (a resin having rubber elasticity made of fluororesin), urethane resin, and silicone resin. Note that the material that can be used to form the band body 20 is not limited to those exemplified here. The band main body 20 includes a main body portion 21 which is a long, strip-shaped portion in the longitudinal direction L of the band 2 (see FIG. 1), and an attachment portion 22 which is attached to the band attachment portion 12 of the main case 10.
[0017] The insert part 3 is a member arranged on the attachment side of the band main body 20 relative to the main body case 10 (the side attached to the band attachment part 12). The insert part 3 is formed by cutting various metal materials such as titanium and stainless steel (SUS), and is a part having strength and rigidity. The material for forming the insert part 3 is not limited to metal materials. Various hard materials having sufficient strength and rigidity similar to metals may be used. The method for forming the insert part 3 is not limited to cutting, and various methods can be used. For example, it may be formed using a 3D printer or the like. When molding the band 2, the insert part is placed on the attachment portion 22 side of the resin material that forms the band body 20, and is insert-molded.
[0018] As shown in FIG. 2 to FIG. 5 and the like, the insert part 3 includes a main body 31 and a connecting portion 32. The main body 31 is a component that is long in the width direction W (see FIG. 1) of the band 2. The main body 31 has a plurality of filling holes 33 (see FIG. 6, etc.) formed therein when the front side of the band 2 is viewed in plan. The filling holes 33 (first holes) are holes that are filled with the resin material that forms the band main body 20 during insert molding. In the first embodiment, the filling hole 33 is an elongated hole whose length in the width direction W (see FIG. 1) of the band 2 is longer than its length in the longitudinal direction L of the band 2. As shown in FIGS. 2 and 3, the filling hole 33 penetrates the main body 31 of the insert part 3 from the front to the back.
[0019] The filling holes 33 shown in the first embodiment are arranged in two in the width direction W of the band 2. The number and arrangement of the filling holes 33 are not limited to the illustrated example. For example, three or more filling holes 33 may be arranged in a row in the width direction W of the band 2. In this case, the length of each filling hole 33 may be shorter than the case of two filling holes. Furthermore, the width of the longitudinal direction L of the band 2 in the main body 31 may be increased, and multiple filling holes 33 may be arranged parallel to the longitudinal direction L of the band 2. Furthermore, multiple filling holes 33 may be arranged in both the width direction W of the band 2 and the longitudinal direction L of the band 2, for example, two in the width direction W of the band 2, two in the longitudinal direction L of the band 2, or a total of four. In this way, when multiple filling holes 33 are provided in both the width direction W of the band 2 and the longitudinal direction L of the band 2, the filling holes 33 may be arranged in a staggered manner, for example, by shifting the positions in the longitudinal direction L of the band 2.
[0020] FIG. 6 is an enlarged view of a portion VI in FIG. As shown in FIGS. 1, 2 and 6, the connecting portion 32 is formed to protrude from the main body 31 toward the attachment side to the main body case 10. As shown in FIGS. 2 to 5 etc., in the first embodiment, two connecting portions 32 are provided.
[0021] 7 is an enlarged view of a portion VII in FIG. 4, and FIG. 8 is an enlarged view of a portion VIII in FIG. As shown in FIGS. 4, 5, 7 and 8, each connecting portion 32 is formed with an axial hole 322 penetrating in the width direction W (see FIG. 1) of the band 2 (see FIGS. 5 and 8). As shown in particular in Figs. 7 and 8, the insert part 3, including the main body 31 and the connecting portion 32, is entirely covered with the resin material of the band main body 20 by insert molding.
[0022] 8, a through hole 222 is formed in the mounting part 22 of the band body 20 at a position corresponding to the axial hole 322 of the connecting part 32. Even during insert molding, the through hole 222 and the axial hole 322 are not blocked by the resin material and communicate with each other, and the mounting part 22 of the band 2, which is an insert molded product, has a through part 25 formed by the through hole 222 and the axial hole 322 penetrating in the width direction W (see FIG. 1) of the band 2. When attaching the mounting portion 22 to the band mounting portion 12 of the main case 10, a spring bar or the like (not shown) is inserted into the through portion 25, thereby engaging the mounting portion 22 of the band 2 with the band mounting portion 12.
[0023] [Effect] Next, the operation of the band 2 of the first embodiment and the watch 100 equipped with the band 2 will be described. When forming the band 2, in an insert molding die, the insert part 3 is placed on the side of the band 2, which is an insert molded product, that corresponds to the mounting part 22, and the resin material (e.g., fluororubber) that constitutes the band body 20 is injected around it to perform insert molding in which they are molded integrally (composite molding). At this time, the filling hole 33 of the insert part 3 is filled with the resin material.
[0024] The band 2 thus formed has a through-hole 25 at the attachment portion 22 . When attaching the band 2 to the watch body 1, the attachment portion 22 of the band 2 is fitted into the band attachment portion 12 of the main body case 10 of the watch body 1, and a spring bar or the like is inserted into the through-hole 25. This causes the band 2 to be locked onto the main body case 10.
[0025] The attachment side of the band 2 to the main case 10 is subjected to repeated pulling and twisting forces, placing a large strain on it, not only when the band 2 is put on and taken off, but also when the watch 100 is worn on the wrist. In this regard, in the band main body 20, an insert part 3 formed of a metal material or the like is disposed inside the attachment side of the band 2, including the attachment part 22 that is attached to the band attachment part 12 of the main case 10. This reinforces the attachment part 22, making it resistant to deformation due to external forces and able to withstand repeated loads. The insert part 3 is entirely covered with a resin material, and a filling hole 33 is provided in the main body 31 of the insert part 3, penetrating from the front side to the back side, and this filling hole 33 is filled with a resin material for molding the band main body 20. Therefore, the resin material is entangled with the insert part 3 and firmly integrated, making the band 2 less likely to be damaged.
[0026] 〔effect〕 As described above, the band 2 in the first embodiment is a band 2 attached to the main case 10, and includes a band body 20 formed from a resin material and an insert part 3 arranged on the attachment side of the band body 20 to the main case 10, and the insert part 3 is entirely covered by the resin material of the band body 20. This allows the resin material used to mold the band body 20 to be firmly integrated with the insert part 3 made of metal or the like, which is a reinforcing member. Therefore, the band 2 will not break even if it is pulled strongly, is resistant to deformation due to external forces, and has high rigidity and durability.
[0027] Moreover, the insert part 3 of the first embodiment has a plurality of filling holes 33 as holes to be filled with the resin material (for example, fluororubber) of the band body 20 during insert molding. As a result, the resin material becomes entangled with the insert part 3, and in the band 2 as an insert molded product, the band body 20 made of resin material and the insert part 3 made of metal material are firmly integrated together. This makes the band 2 resistant to deformation caused by tensile force or external force, and gives the band 2 high rigidity and durability.
[0028] Moreover, the filling hole 33 which is the hole portion in the first embodiment is an elongated hole whose length in the width direction W (see FIG. 1) of the band 2 is longer than its length in the longitudinal direction L of the band 2. Therefore, the main body 31, in which the filling hole 33 is formed, can be made rod-like with a length in the width direction W of the band 2 longer than the length in the longitudinal direction L of the band 2, as shown in Fig. 6 etc. This improves the strength of the attachment side of the band 2 while limiting the portion in which the insert part 3 is disposed inside to a narrow range on the attachment side to the main body case 10. This makes it possible to realize a band 2 that fits comfortably on the arm without compromising the fit of the resin band 2 made of a relatively soft resin material such as fluororubber.
[0029] When such a band 2 is attached to the main body case 10 of the watch body 1 to make a watch 100 (wristwatch), a watch 100 that is comfortable to wear and has a band 2 that is excellent in durability can be realized.
[0030] Although the first embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the first embodiment, and various modifications are possible as appropriate without departing from the spirit of the present invention.
[0031] For example, the shape of the insert part is not limited to those exemplified in Figs. 2 to 5, and can be modified as appropriate.
[0032] [Second embodiment] 9 to 13 show an example in which the insert part according to the second embodiment is incorporated into the band 2. FIG. Fig. 9 is a plan view of the main part of the band according to the second embodiment, seen from the front side of the band, around the attachment part of the band to the main case, and Fig. 10 is a plan view of the main part of the band according to the second embodiment, seen from the back side of the band. Fig. 11 is a side view of the main part of the band according to the second embodiment, around the attachment part of the band to the main case. In Figs. 9 to 13, the band body 20 of the band 2 is shown by a two-dot chain line, and the insert part 4 is shown by a solid line. In Figs. 9 to 13, the band 2 is the same as in the embodiment, except for the insert part 4, so the same parts are given the same reference numerals and their description is omitted.
[0033] As shown in FIGS. 9 and 10, the insert part 4 according to the second embodiment is formed long in the width direction W of the band 2 (see FIG. 1), and includes a main body 41 and a connecting part . Main body 41 has a generally inverted trapezoidal shape in plan view, with the side attached to main body case 10 being particularly long. Also, connecting portion 42 is formed to protrude from main body 41 on the side attached to main body case 10 (the long side of the inverted trapezoid). The insert part 4 is formed using various metal materials such as titanium and stainless steel (SUS) using a 3D printer (metal 3D printer) or the like. Note that the material forming the insert part 4 is not limited to metal, and various hard materials having sufficient strength and rigidity similar to metal may be used. The method of forming the insert part 4 is also not limited to 3D printer, and other methods may be used.
[0034] The shape of the connecting portion 42 is similar to that of the connecting portion 32 in the first embodiment. 12 is an enlarged view of a portion XII in FIG. 9, and FIG. 13 is an enlarged view of a portion XIII in FIG. As shown in FIGS. 11 and 13, the connecting portion 42 has a shaft hole 422 formed at the same position as the shaft hole 322 in the connecting portion 32 .
[0035] As shown in FIG. 12, the main body 41 of the insert part 4 is formed with a plurality of filling holes 43 (first holes). In the second embodiment shown in Figures 9, 10 and 12, the filling hole 43 is an elongated hole whose length in the longitudinal direction L (see Figure 1) of the band 2 is longer than its length in the width direction W of the band 2. In the illustrated example, a plurality of narrow slit-shaped holes are provided side by side. As shown in Figures 9 and 10, the filling hole 43 penetrates the main body 41 of the insert part 4 from the front to the back. The shape and arrangement of the filling hole 43 are not limited to the illustrated example. For example, the filling hole 43 may be a hole portion having a wide width in the width direction W of the band 2. In this case, two or more filling holes 43 may be provided side by side in the width direction W of the band 2. In the illustrated example, the filling hole 43 is provided at a slight angle with respect to the longitudinal direction of the band 2, but the filling hole 43 may be provided parallel to the longitudinal direction L of the band 2, for example.
[0036] 11 and 13, a filling hole 44 is also formed on the side surface of the insert part 4. The filling hole 44 (second hole portion) on the side surface penetrates the main body 41 in the width direction, similar to the axial hole 422.
[0037] As shown in Figures 9 to 13, when an insert part 4 is provided in a band 2, when the entire insert part 4 including the main body 41 and the connecting part 42 is covered with the resin material of the band main body 20 during insert molding, the resin material fills the filling holes 43, 44 from the vertical direction (front and back direction of the band 2) and the horizontal direction (width direction W of the band 2) and becomes sufficiently intertwined with the insert part 4. As a result, the resin material constituting the band body 20 is firmly integrated with the insert part 4, so that the band 2 will not break even if it is pulled hard, is resistant to deformation due to external forces, and has high rigidity and durability.
[0038] [Third embodiment] 14 to 20 show an example in which the insert part according to the third embodiment is incorporated into the band 2. FIG. Fig. 14 is a plan view of the main part of the band according to the third embodiment, seen from the front side of the band, Fig. 15 is a plan view of the main part of the band according to the third embodiment, seen from the back side of the band, Fig. 16 is a side view of the main part of the band according to the third embodiment, and Fig. 17 is a perspective view of the main part of the band according to the third embodiment, seen from the front side of the band. In Figs. 14 to 20, the band body 20 of the band 2 is shown by a two-dot chain line, and the insert part 5 is shown by a solid line. In Figs. 14 to 20, the band 2 is the same as that of the first embodiment except for the insert part 5, so the same parts are given the same reference numerals and their description is omitted.
[0039] As shown in FIGS. 14 and 15, the insert part 5 according to the third embodiment is formed long in the width direction W of the band 2 (see FIG. 1), and includes a main body 51 and a connecting part 52. The shape of the connecting portion 52 is similar to that of the connecting portion 32 in the first embodiment. 18 is an enlarged view of a portion XVIII in FIG. 14, FIG. 19 is an enlarged view of a portion IXX in FIG. 16, and FIG. 20 is an enlarged view of a portion XX in FIG. As shown in FIGS. 16 and 19, the connecting portion 52 has a shaft hole 522 formed at the same position as the shaft holes 322, 422 in the connecting portions 32 and 42.
[0040] The insert part 5 is formed using various metal materials such as titanium and stainless steel (SUS) using a 3D printer (metal 3D printer) or the like, similar to the insert part 4. The material for forming the insert part 5 is not limited to metal, and various hard materials having sufficient strength and rigidity similar to metal may be used. The method for forming the insert part 5 is also not limited to a 3D printer, and other methods may be used.
[0041] 18, 19, and 20, a plurality of filling holes 53, 54, and 55 are formed in the main body 51 of the insert part 5. Specifically, a plurality of filling holes 53 (first holes) are formed in the main body 51 of the insert part 5 when the band 2 is viewed in plan. Next, a plurality of filling holes 54 (second holes) are formed in the main body 51 of the insert part 5 when the band 2 is viewed from one side surface. Next, a plurality of filling holes 55 (third holes) are formed in the main body 51 of the insert part 5 when the band 2 is viewed from a side surface in another direction perpendicular to the one side surface. That is, in the third embodiment shown in Figures 14 to 20, the main body 51 of the insert part 5 has a hollow structure 530 formed in a lattice pattern in the width direction W of the band 2 and the longitudinal direction L of the band 2 (see Figure 1), and the hollow structure 530 includes filling holes 53, 54, and 55 as holes into which the resin material that constitutes the band main body 20 is filled during insert molding. The hollow structure 530 is a hollow structure formed by continuously repeating a plurality of three-dimensional lattice units, and has a so-called lattice structure. Note that the shape of the lattice of the lattice structure is not limited to the illustrated example.
[0042] As shown in Figures 18, 19, 20, etc., the main body 51 has a filling hole 53 penetrating in the vertical direction (up and down, front and back direction) of the band 2, a filling hole 54 penetrating in the horizontal direction (width direction W of the band 2), and a filling hole 55 penetrating in the length direction (longitudinal direction L of the band 2). As a result, when an insert part 5 is provided in the band 2, when the entire insert part 5 including the main body 51 and the connecting part 52 is covered with the resin material of the band main body 20 during insert molding, the resin material fills the filling holes 53, 54, 55 from the vertical direction (front and back direction of the band 2), horizontal direction (width direction W of the band 2) and length direction (longitudinal direction L of the band 2) and becomes sufficiently intertwined with the insert part 5. As a result, the resin material constituting the band body 20 is firmly integrated with the insert part 5, so that the band 2 will not break even if it is pulled hard, is resistant to deformation due to external forces, and has high rigidity and durability.
[0043] In this way, when a lattice structure is incorporated into the insert part 5 (particularly the hollow structure 530 of the main body 51), the insert part 5 can be made lighter and the amount of material required can be reduced compared to a solid structure because it is a hollow structure. Furthermore, since the hollow structure 530 is filled with a plurality of continuously repeated lattice structures, high rigidity can be achieved while also achieving weight reduction.
[0044] In the first to third embodiments, the filling holes 33 (first hole), 43 (first hole), 44 (second hole), 53 (first hole), 54 (second hole), and 55 (third hole) as holes provided in the main body 31, 41, and 51 of the insert parts 3, 4, and 5 are shown as through holes, but some or all of the filling holes 33, 43, 44, 53, 54, and 55 may include recesses that do not penetrate. Even if some or all of the filling holes 33, 43, 44, 53, 54, and 55 are recesses, it is expected that the resin material constituting the band main body 20 will be intertwined with the insert parts 3, 4, and 5 during insert molding, and the band main body 20 and the insert parts 3, 4, and 5 will be integrated.
[0045] In the first to third embodiments, the insert parts 3, 4, and 5 are made of metal or various hard materials having sufficient strength and rigidity similar to that of metal, but the present invention is not limited to this. The insert parts 3, 4, and 5 may be made of any material that is harder than the resin material that makes up the band body 20.
[0046] Furthermore, in this embodiment, an example has been described in which the band 2 is connected to the main case 10 of the watch 100, but the band 2 is not limited to being a watch band 2 that is attached to the main case 10 of the watch 100. For example, the band 2 of the present invention can be applied as a band that is connected to the main body case of various devices (for example, a smart watch, a pedometer, a heart rate monitor, etc.) that are fixed to the body by the band 2.
[0047] Although several embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. [Explanation of symbols]
[0048] 1 Watch body 10 Main unit case 12 Band attachment part 2 Bands 20 Band body 21 Main body 22 Mounting part 3 Insert parts 31 Main unit 32 Connecting part 322 Shaft hole 33 Filling hole (first hole portion) 43 Filling hole (first hole portion) 44 Filling hole (second hole) 53 Filling hole (first hole portion) 54 Filling hole (second hole) 55 Filling hole (third hole) 100 Watches
Claims
1. A band attached to a main body case, A band body formed of a resin material; an insert part disposed on a mounting side of the band body relative to the main body case; Equipped with The insert part is entirely covered with the resin material of the band body. A band that features
2. The insert part has a plurality of first holes formed therein into which the resin material of the band body is filled during insert molding.
2. The band according to claim 1 .
3. The first hole portion of the insert part is a long hole whose length in the width direction of the band is longer than its length in the longitudinal direction of the band when the band is viewed in a plan view.
3. The band according to claim 2.
4. The insert part includes a main body and a connecting portion, The main body is a part that is longer in the width direction of the band than in the longitudinal direction of the band.
3. The band according to claim 2.
5. The first hole portion of the insert part is a long hole whose length in the longitudinal direction of the band is longer than its length in the width direction of the band when the band is viewed in a plan view.
3. The band according to claim 2.
6. The insert part includes a main body and a connecting portion, The main body is a part that is longer in the width direction of the band than in the longitudinal direction of the band.
6. A band as claimed in claim 5.
7. The insert part has a second hole formed therein when the band is viewed from a side, The second hole penetrates the main body in a width direction.
7. A band as claimed in claim 6.
8. The first hole portion of the insert part is formed such that a longitudinal direction of the first hole portion is inclined with respect to a longitudinal direction of the band.
6. A band as claimed in claim 5.
9. The insert part has a lattice-shaped hollow structure, The hollow structure portion includes the first hole portion into which the resin material of the band body is filled during insert molding.
3. The band according to claim 2.
10. the hollow structure portion includes the first hole portion, the second hole portion, and the third hole portion into which a resin material of the band body is filled during insert molding, The first hole portion of the insert part is a plurality of holes that can be seen when the band is viewed in a plan view, The second hole portion of the insert part is a plurality of holes that are visible when the band is viewed from one side, The third hole portion of the insert part is a plurality of holes that can be seen when the band is viewed from the other side surface perpendicular to the one side surface, 10. The band according to claim 9.
11. A band according to any one of claims 1 to 10; The main body case, A watch comprising:
Citation Information
Patent Citations
JP1988140212U