Band and watch

The laminated band structure with flexible plastic layers and auxiliary core materials addresses flexibility and durability issues in thicker bands, enhancing wearing comfort and preventing damage.

JP7713858B2Active Publication Date: 2025-07-28SEIKO CORP
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Patent Information

Application Number
JP2021179748
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-02
Publication Date
2025-07-28
Estimated Expiration
2041-11-02

AI Technical Summary

Technical Problem

Bands made of synthetic resin or leather become less flexible as thickness increases, leading to a deterioration in wearing feeling and susceptibility to damage from repeated bending.

Method used

A laminated band structure comprising a core material with flexible and temperature-dependent plastic layers, surrounded by a skin member, and auxiliary core materials to enhance flexibility and durability.

Benefits of technology

Maintains high flexibility and improves wearing comfort while preventing deterioration, even with increased thickness, by combining layers with different functions and materials.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a band that can restrain deterioration while improving a feeling of fitting by keeping bendability high.SOLUTION: A band 1 comprises a core material 3 comprising a core material body 15 in which a plurality of members including at least a member having flexibility are laminated, and a skin member 2 surrounding the core material 3. The core material body 15 is formed in such a manner that a variable performance member and a special member are joined to each other by thermocompression bonding, and laminated in a front-back direction of a watch. The variable performance member has flexibility and temperature dependence, and is formed so as to include plastic.SELECTED DRAWING: Figure 1
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Description

Technical Field

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

Background Art

[0002] Conventionally, various techniques for enhancing the wearing feeling around the wrist have been proposed for bands worn on the wrist such as wristwatches.

[0003] For example, Patent Document 1 discloses a configuration of a wristwatch using a shape memory alloy as a core material of a band. According to the technique described in Patent Document 1, the band is held in a C shape by the shape memory alloy. Thereby, it is said that attachment and detachment can be facilitated and a comfortable wearing feeling can be obtained.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in a band mainly made of synthetic resin, leather, etc., as the thickness of the band increases, the flexibility decreases, and thus the wearing feeling around the wrist may deteriorate. Further, there has been a problem that the band is likely to deteriorate by repeatedly bending a thick band.

[0006] Therefore, an object of the present invention is to provide a band capable of improving the wearing feeling and suppressing deterioration, and a watch including this band.

Means for Solving the Problems

[0007] To solve the above problems, a band according to one aspect of the present invention includes a core material having a laminated structure in which a plurality of members including a flexible member are laminated, and a skin member surrounding the core material. , the core material has a core material body and first and second auxiliary core materials provided between the core material body and the skin member, and the width dimension of the second auxiliary core material is smaller than the width dimension of the first auxiliary core material. .

[0008] According to this configuration, the flexibility of the band can be maintained at a high level, and the feeling of wearing around the wrist can be improved. In particular, when used as a band for a wristwatch or the like, even when the thickness is increased for design purposes, the flexibility can be enhanced. Therefore, the versatility can be improved. Since the band is composed of a laminated structure in which a plurality of layers including at least a flexible member are laminated, for example, members having different functions and performances can be combined and laminated. As a result, in addition to the flexible member, by selecting the members to be laminated according to various applications, the core material can be provided with high functionality. For example, by laminating a member that enhances shape retention and adhesion, deterioration of the band due to repeated bending of the band can be suppressed. Therefore, it is possible to provide a band that can improve the wearing feeling and suppress deterioration.

[0009] Further, in the band, the laminated structure has a first member that is flexible and formed including plastic, and a second member that is thinner than the first member.

[0010] According to this configuration, the core material is formed by laminating the first member, which is a flexible plastic material, and the second member, which is thinner than the first member. Since the first member is thicker than the second member, the core material has flexibility as its main function. As a result, even when a plurality of members are laminated, the core material can have high flexibility. In addition, since the first member is formed of a plastic material, for example, an increase in the hardness of the band when the thickness of the core material is increased can be suppressed as compared with the case where the core material is formed of a metal material. Therefore, even when the thickness of the core material is increased, the flexibility can be maintained at a high level and the wearing feeling can be improved.

[0011] Further, the band has a first member made of a plastic material having flexibility and including plastic, and a second member having a different material from the first member, and the laminate structure has flexibility.

[0012] According to this configuration, a core material is formed by laminating a first member made of a plastic material having flexibility and a second member made of a material different from the first member. In this way, by combining a flexible member and a member having a function other than flexibility, the core material can be provided with a plurality of functionalities. Therefore, even when the thickness increases, the flexibility can be maintained at a high level, and deterioration of the band and deformation during use can be effectively suppressed.

[0013] Further, the band has a first member having a temperature dependence in which softness changes with temperature.

[0014] According to this configuration, for example, when the band is worn on the arm, the first member becomes soft as the band is warmed. Thereby, the followability of the band to the arm during wearing is improved, and the wearing feeling can be enhanced. Further, even when the thickness of the band increases, the band is easily bent, so there is no need to forcibly bend the band. Thereby, deterioration of the band due to, for example, an excessive force applied to the band can be suppressed. Also, for example, after detachment, the first member becomes difficult to deform as the temperature of the band cools. Thereby, deformation of the band outside of use (when worn on the arm) can be suppressed, and deformation and deterioration of the band can be suppressed.

[0015] Further, the band has a first member made of a plastic sheet having flexibility and temperature dependence, and the second member is a non-woven fabric.

[0016] According to this configuration, by having the first member, it is possible to improve the flexibility and the feeling of wearing of the band, particularly. Also, by having the second member, it is possible to easily maintain the shape of the core material and to obtain a core material excellent in adhesion and durability. Furthermore, since the core material can be formed without using a metal material, even when the thickness of the band increases, it is possible to suppress the band from becoming harder than necessary and to maintain high flexibility.

[0017] Also, in the band, the laminated structure is formed by thermocompression bonding the first member and the second member to each other.

[0018] According to this configuration, compared with the case of using an adhesive, the first member and the second member can be laminated more easily. Also, since the first member and the second member can be joined after being individually molded, the degree of freedom in the shape of the core material is high and the manufacturability can be improved.

[0019] Also, the band In , the laminated structure is the core material body.

[0020] Also, the band In , the laminated structure is the auxiliary core material.

[0021] A clock according to one aspect of the present invention has the above-described band and a clock body connected to the band.

[0022] According to this configuration, it is possible to obtain a configuration particularly suitable for use as a band for a wristwatch. That is, it is possible to improve the flexibility and the user's feeling of wearing when wearing around the wrist. Also, it is possible to suppress deterioration of the band due to repeated attachment and detachment to the wrist. Therefore, it is possible to provide a clock provided with a band capable of improving the feeling of wearing while suppressing deterioration.

[0023] Also, in the clock, the core material has an auxiliary core material, and the auxiliary core material is provided only at the base end portion which is the connection portion with the clock body in the longitudinal direction of the band.

[0024] According to this configuration, the auxiliary core material is provided only in a part of the band in the longitudinal direction. By providing the auxiliary core material in only a part instead of the entire band in this way, it can be adapted to various designs, uses, etc. In particular, when the auxiliary core material is provided only at the base end portion, the thickness of the base end portion in the longitudinal direction of the band can be increased. Thereby, for example, when applying to a wristwatch with a thick watch body, by forming the core material so that the thickness gradually increases from the central portion in the longitudinal direction toward the base end portion, a high-class feeling can be expressed. Further, by adopting a configuration in which the auxiliary core material is not arranged in the portion where the punching hole or the like is formed, even when the core material expands and contracts due to long-term use, the punching hole will not be blocked. Furthermore, by making the thickness thinner from the tip end portion to the central portion of the band where a larger amount of deformation is required, it becomes easier to bend and the usability for the user can be improved. Furthermore, by using the above-described auxiliary core material, the flexibility can be maintained high even in the portion where the thickness is partially increased. Also, the thickness of the band can be changed according to the connection structure between the band and the watch body. Therefore, the versatility of the watch can be improved.

Advantages of the Invention

[0025] According to the present invention, it is possible to provide a band that can improve the wearing feeling while suppressing deterioration, and a watch provided with this band.

Brief Description of the Drawings

[0026]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals are given to configurations having the same or similar functions. And the overlapping descriptions of those configurations may be omitted. In the following description, when the wristwatch 10 is worn on the user's wrist, the side facing the wrist is sometimes referred to as the back side, and the opposite side is referred to as the front side.

[0028] (First Embodiment) (Watch, Band) FIG. 1 is a cross-sectional view of the band 1 according to the first embodiment. FIG. 2 is a top view of the band 1 according to the first embodiment. In FIG. 2, a part (front material 12) of the skin member 2 is not shown so that the inside of the band 1 can be seen. As shown in FIG. 1, the band 1 is, for example, a band for a watch (wristwatch) 10 that a user wraps around the wrist and wears. The watch 10 includes a watch body 11 and a band 1 connected to one end of the watch body 11.

[0029] The band 1 of the present embodiment is, for example, a leather band integrally formed using a leather material on at least a part of the surface. The band 1 is provided with a stud (not shown) for engaging with the other band, a stud hole 8 (see FIG. 2), or an intermediate mechanism (not shown), etc. The band 1 includes a skin member 2, a core material 3, and an attachment member 4.

[0030] (Skin Member) As shown in FIG. 1, the skin member 2 has a front material 12 and a back material 13. The front material 12 is a member provided on the surface facing outward when the watch 10 (band 1) is worn on the user's wrist, and is the member that becomes the design surface of the band 1. The back material 13 is a member provided on the surface facing the user's wrist side when the watch 10 is worn. As shown in FIG. 2, after the front material 12 and the back material 13 are formed in a strip shape along the longitudinal direction of the band 1, the outer peripheral portions are joined to each other using stitches, adhesives, etc. Thereby, a space for inserting the core material 3 described later is formed between the front material 12 and the back material 13. In other words, the skin member 2 is formed so as to surround the core material 3.

[0031] (Core material) As shown in FIG. 1, the core material 3 is provided inside the skin member 2. The core material 3 is provided between the front material 12 and the back material 13. The core material 3 is configured to have at least a core body 15. In addition to the core body 15, the core material 3 may have at least one or more auxiliary core materials 16, 17 as in this embodiment. The core body 15 and the auxiliary core materials 16, 17 are separate bodies.

[0032] As shown in FIGS. 1 and 2, the core body 15 is provided substantially over the entire longitudinal direction of the band 1. The core body 15 is formed to have a shape slightly smaller than the skin member 2 in the top view shown in FIG. 2. The core body 15 has an appropriate flexibility that allows the band 1 to be bent, and also has a function of improving the strength of the band 1.

[0033] The auxiliary core materials 16, 17 are provided on the front side (front material 12 side) of the band 1 rather than the core body 15. In this embodiment, a plurality (two in this embodiment) of auxiliary core materials 16, 17 are provided. The first auxiliary core material 16 is provided so as to be in contact with the front surface of the core body 15. The second auxiliary core material 17 is provided on the front side rather than the first auxiliary core material 16. In the following description, when the first auxiliary core material 16 and the second auxiliary core material 17 are not distinguished, they may simply be referred to as auxiliary core materials 16, 17.

[0034] FIG. 3 is a schematic cross-sectional view of the core material body 15 according to the first embodiment. In FIG. 3, for ease of explanation, the thicknesses of the members to be laminated are exaggerated. Therefore, the actual thickness of each member is not limited to the thickness shown in the figure. Although illustration is omitted, the auxiliary core materials 16 and 17 are also configured in the same manner as the core material body 15 shown in FIG. 3. As shown in FIG. 3, the core material body 15 is formed by laminating a plurality of members including at least a flexible member in the front-back direction. Specifically, the core material body 15 has a variable performance member 21 (the first member in the claims) and a special member 22 (the second member in the claims).

[0035] The variable performance member 21 is a flexible member. The variable performance member 21 is formed of a material having at least stretchability, deformability (flexibility), and temperature dependence (temperature sensitivity). Specifically, the variable performance member 21 is a plastic sheet having flexibility and temperature dependence (for example, HUMOFIT (registered trademark)). The variable performance member 21 may be formed by laminating a plurality of plastic sheets. The variable performance member 21 may be formed of a single plastic sheet. That the variable performance member 21 has temperature dependence means that the softness of the variable performance member 21 changes with temperature. The temperature at which the softness begins to change includes, for example, a temperature similar to that of human skin. Therefore, the variable performance member 21 has a function of becoming softer when the user wears the band 1 on the arm as compared with when it is not worn.

[0036] The special member 22 is laminated on at least one surface of the variable performance member 21. In the present embodiment, the special member 22 is laminated on both surfaces of the variable performance member 21, respectively. A front-side special member 25 is joined to the front-side surface of the variable performance member 21. A back-side special member 27 is joined to the back-side surface of the variable performance member 21. Therefore, in the present embodiment, the core material body 15 has a three-layer structure laminated in the order of the special member 22, the variable performance member 21, and the special member 22.

[0037] The special member 22 is formed to be thinner than the variable performance member 21. The special member 22 is formed of a material different from that of the variable performance member 21. Specifically, both the front-side special member 25 and the back-side special member 27 are non-woven fabrics. The special member 22 has a function of improving the shape maintenance, durability, and adhesion to the skin member 2 in the core body 15 and the auxiliary cores 16 and 17 when laminated on the variable performance member 21. The variable performance member 21 and the special member 22 are joined to each other by thermocompression bonding or pressure bonding.

[0038] In the present embodiment, the core body 15, the first auxiliary core 16, and the second auxiliary core 17 are all laminated structures formed of the same material. That is, the core body 15 and each auxiliary core 16, 17 are formed by laminating in the order of non-woven fabric, variable performance member 21, and non-woven fabric. However, the core body 15, the first auxiliary core 16, and the second auxiliary core 17 differ in shape and thickness as will be described in detail later.

[0039] As shown in FIGS. 1 and 2, each of the thus formed auxiliary cores 16, 17 is provided only at the base end portion 1a which is the connection portion with the watch body 11 in the longitudinal direction of the band 1. As shown in FIG. 2, the first auxiliary core 16 is provided on the base end portion 1a side rather than the portion where the stud hole 8 is formed in the longitudinal direction of the band 1. The width dimension of the first auxiliary core 16 is substantially equal to the width dimension of the band 1 (that is, the width dimension of the skin member 2).

[0040] The second auxiliary core 17 is provided only at the base end portion 1a of the band 1 in the same manner as the first auxiliary core 16. The width dimension of the second auxiliary core 17 is smaller than the width dimension of the first auxiliary core 16. The second auxiliary core 17 is located at the center in the width direction of the band 1. Furthermore, as shown in FIG. 1, each of the auxiliary cores 16, 17 is formed such that the thickness decreases from the base end portion 1a in the longitudinal direction of the band 1 toward the center portion. Such auxiliary cores 16, 17 are formed, for example, by cutting into a desired shape after joining the variable performance member 21 and the special member 22 and shaving so that the thickness gradually changes.

[0041] Therefore, the auxiliary core materials 16 and 17 increase in thickness as they go from the central portion in the longitudinal direction of the band 1 toward the proximal end portion 1a. Further, the auxiliary core materials 16 and 17 increase in thickness as they go from both end portions in the width direction toward the central portion at the proximal end portion 1a. Since the thicknesses of the skin member 2 and the core material main body 15 are substantially constant, by having the above-described auxiliary core materials 16 and 17 as the core material 3, the entire band 1 is formed such that the above-described change in thickness occurs.

[0042] (Mounting member) The mounting member 4 is provided between the band 1 and the watch body 11. The mounting member 4 connects the band main body constituted by the above-described skin member 2 and the core material 3 and the watch body 11.

[0043] (Modification of the first embodiment) FIG. 4 is a schematic cross-sectional view of a core material main body 115 according to a modification of the first embodiment. Although illustration is omitted, the first auxiliary core material and the second auxiliary core material may also be configured in the same manner as the core material main body 115 shown in FIG. 4. In the modification, the core material main body 115 has a variable performance member 121 and a special member 122 laminated on one side of the variable performance member 121. The special member 122 has a back-side special member 127 and a front-side special member 125. The back-side special member 127 is joined to the front-side surface of the variable performance member 121. The front-side special member 125 is provided on the front side of the back-side special member 127. The front-side special member 125 is joined to the front-side surface of the back-side special member 127. Therefore, in this modification, the core material main body 115 has a three-layer structure laminated in the order of the special member 122, the special member 122, and the variable performance member 121.

[0044] In addition, in this modified example, the core material body 115 has a structure in which the special member 122, the special member 122, and the variable performance member 121 shown in FIG. 4 are laminated in this order, but it is not limited to this. Any one or any two of the core material body 115, the first auxiliary core material 16, and the second auxiliary core material 17 may have the structure shown in FIG. 4, and the remaining may have a structure in which the special member 22, the variable performance member 21, and the special member 22 shown in FIG. 3 are laminated in this order.

[0045] (Function, Effect) Next, the functions and effects of the above-mentioned band 1 and watch 10 will be described. According to the band 1 of the present embodiment, the band 1 includes a core material 3 constituted by a laminated structure including at least a flexible member, and a skin member 2 surrounding the core material 3. Therefore, the flexibility of the band 1 can be maintained at a high level, and the wearing feeling around the wrist can be improved. In particular, when used as the band 1 for the wristwatch 10 or the like, the flexibility can be enhanced even when the thickness is increased for design purposes. Therefore, the versatility can be improved. Since the band 1 is constituted by a laminated structure in which a plurality of layers including at least a flexible member are laminated, the core material body 15 and the auxiliary core materials 16 and 17 can be formed. For example, members having different functions and performances can be combined and laminated. Thereby, in addition to the flexible member, by selecting the members to be laminated according to various applications, the core material 3 can be provided with high functionality. For example, by laminating a member that enhances shape maintenance and adhesion, deterioration of the band 1 due to repeated bending of the band 1 can be suppressed. Therefore, it is possible to provide a band 1 that can suppress deterioration while improving the wearing feeling.

[0046] The core material body 15 and the auxiliary core materials 16 and 17 include a variable performance member 21 (the first member in the claims) and a special member 22 (the second member in the claims) that is thinner than the variable performance member 21. According to this configuration, the variable performance member 21, which is a plastic material having flexibility, and the special member 22 that is thinner than the variable performance member 21 are laminated to form the core material body 15 and the auxiliary core materials 16 and 17. Since the variable performance member 21 is thicker than the special member 22, the core material body 15 and the auxiliary core materials 16 and 17 have flexibility as their main function. Thereby, even when a plurality of members are laminated, the core material 3 can have high flexibility. Further, since the variable performance member 21 is formed of a plastic material, it is possible to suppress an increase in the hardness of the band 1 when the thickness of the core material 3 is increased, as compared with the case where the core material 3 is formed of a metal material. Therefore, even when the thickness of the core material 3 is increased, the flexibility can be maintained high and the wearing feeling can be improved.

[0047] The core material body 15 and the auxiliary core materials 16 and 17 include a variable performance member 21 and a special member 22 having a different material from the variable performance member 21. According to this configuration, the variable performance member 21, which is a plastic material having flexibility, and the special member 22 having a different material from the variable performance member 21 are laminated to form the core material body 15 and the auxiliary core materials 16 and 17. In this way, by combining a flexible member and a member having a function other than flexibility, the core material 3 can be provided with a plurality of functions. Therefore, even when the thickness increases, the flexibility can be maintained high, and deterioration of the band 1, deformation during use, etc. can be effectively suppressed.

[0048] The variable performance member 21 has a temperature dependence in which its softness changes with temperature. Therefore, for example, when the band 1 is worn on the arm, the variable performance member 21 becomes soft as the band 1 is warmed. Thereby, the followability of the band 1 to the arm during wearing is improved, and the wearing comfort can be enhanced. Further, even when the thickness of the band 1 increases, the band 1 is easily bent, so there is no need to forcibly bend the band 1. Thereby, for example, deterioration of the band 1 due to an excessive force applied to the band 1 can be suppressed. Also, for example, after detachment, the variable performance member 21 becomes difficult to deform as the temperature of the band 1 cools. Thereby, deformation of the band 1 other than during use (when worn on the arm) can be suppressed, and deformation and deterioration of the band 1 can be suppressed.

[0049] The variable performance member 21 is a plastic sheet having flexibility and temperature dependence, and the special member 22 is a non-woven fabric. By having such a variable performance member 21, in particular, the flexibility and wearing comfort of the band 1 can be improved. Also, by having the special member 22, it is easy to maintain the shape of the core material 3, and the core material 3 can be made to have excellent adhesion and durability. Further, since the core material 3 can be formed without using a metal material, even when the thickness of the band 1 increases, it is possible to suppress the band 1 from becoming harder than necessary and to maintain high flexibility.

[0050] The core material main body 15 and the auxiliary core materials 16, 17 are formed by thermocompression bonding the variable performance member 21 and the special member 22 to each other. Thereby, the variable performance member 21 and the special member 22 can be laminated more easily as compared with the case of using an adhesive. Also, since the variable performance member 21 and the special member 22 can be joined after being individually molded, the degree of freedom in the shape of the core material 3 is high, and the manufacturability can be improved.

[0051] According to the clock 10 of the present embodiment, the clock 10 includes the above-described band 1 and a clock body 11 connected to the band 1. Therefore, it can be made into a configuration suitable particularly for use as the band 1 for the wristwatch 10. That is, the flexibility can be improved, and the wearing feeling of the user when wearing it around the wrist can be improved. Further, deterioration of the band 1 due to repeated attachment and detachment to the wrist can be suppressed. Therefore, it is possible to provide a clock 10 provided with a band 1 that can improve the wearing feeling while suppressing deterioration.

[0052] The auxiliary core materials 16 and 17 are provided only at the base end portion 1a which is the connection portion with the clock body 11 in the longitudinal direction of the band 1. The auxiliary core materials 16 and 17 are provided only in a part in the longitudinal direction of the band 1. By providing the auxiliary core materials 16 and 17 not in the whole band 1 but in a part, it can be adapted to various designs, uses, etc. In particular, when the auxiliary core materials 16 and 17 are provided only at the base end portion 1a, the thickness of the base end portion 1a in the longitudinal direction of the band 1 can be increased. Thereby, for example, when applying to a wristwatch 10 with a thick clock body 11, by forming the core material 3 so that the thickness gradually increases from the central portion in the longitudinal direction toward the base end portion 1a, a high-class feeling can be expressed. Further, by adopting a configuration in which the auxiliary core materials 16 and 17 are not arranged in the portion where the through-hole 8 and the like are formed, even when the core material 3 expands and contracts due to long-term use, the through-hole 8 is not blocked. Furthermore, by making the thickness thinner from the tip portion to the central portion of the band 1 where a larger amount of deformation is required, it is easier to bend and the usability of the user can be improved. Further, by using the above-described auxiliary core materials 16 and 17, the flexibility can be maintained high even in the portion where the thickness is partially increased. Also, the thickness of the band 1 can be changed according to the connection structure between the band 1 and the clock body 11. Therefore, the versatility of the clock 10 can be improved.

[0053] (Second Embodiment) FIG. 5 is a cross-sectional view of the band 201 according to the second embodiment. FIG. 6 is a top view of the band 201 according to the second embodiment. FIG. 7 is a schematic cross-sectional view of the auxiliary core member 216 according to the second embodiment. In FIG. 6, similar to FIG. 2, illustration of a part (surface material 12) of the skin member 2 is omitted so that the inside of the band 201 can be seen. In the second embodiment, it is different from the first embodiment described above in that the core member 3 has a single auxiliary core member 216 and the special member 222 is provided only on one side of the variable performance member 221.

[0054] As shown in FIGS. 5 and 6, the core member 3 of the band 201 in the second embodiment has a core member body 15 and a single auxiliary core member 216. Since the configuration of the core member body 15 is equivalent to that of the core member body 15 in the first embodiment, the description thereof is omitted. In the second embodiment, one auxiliary core member 216 is provided. The auxiliary core member 216 is provided on the front side of the core member body 15. The auxiliary core member 216 is provided so as to be in contact with the front surface of the core member body 15. The auxiliary core member 216 is provided at the base end portion 1a which is the connection portion with the watch body 11 in the longitudinal direction of the band 201. The auxiliary core member 216 is provided on the base end portion 1a side rather than the portion where the rod hole 8 is formed in the longitudinal direction of the band 201. The width dimension of the auxiliary core member 216 is smaller than the width dimension of the band 201. The auxiliary core member 216 is provided at the central portion in the width direction of the band 1.

[0055] As shown in FIGS. 5 and 7, the auxiliary core member 216 is formed such that the thickness becomes thinner as it goes from the base end portion 1a to the central portion in the longitudinal direction of the band 201. Therefore, the band 201 is formed such that the thickness increases as it goes from the central portion to the base end portion 1a in the longitudinal direction. Also, the band 201 is formed such that the thickness of the central portion is thicker than both end portions in the width direction at the base end portion 1a.

[0056] As shown in FIG. 7, the auxiliary core material 216 of the second embodiment has a variable performance member 221 and a single special member 222. The materials of the variable performance member 221 and the special member 222 are the same as those of the first embodiment. The variable performance member 221 is formed such that its thickness decreases as it extends from the proximal end portion 1a in the longitudinal direction of the band 201 toward the central portion. The special member 222 is joined to the front surface of the variable performance member 221.

[0057] According to the band 201 of the second embodiment, compared with the first embodiment, the entire thickness of the band 1 including the proximal end portion 1a is formed thinner. Therefore, it can be suitably used as a thinner band 1. Further, since the core material 3 has the auxiliary core material 216, the same operational effects as those of the first embodiment can be achieved.

[0058] Note that the technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, an example in which the bands 1 and 201 are leather bands has been described, but the present invention is not limited to this. The bands 1 and 201 may have a structure integrally formed of a member other than leather, such as a nylon band or a silicon band. Further, the present invention is applicable to any type of band.

[0059] In the above-described embodiment, an example in which the core material 3 has one or two auxiliary core materials 16, 17, 216 has been described, but the present invention is not limited to this. The core material 3 may have three or more auxiliary core materials. When the core material 3 has a plurality of auxiliary core materials, the materials, thicknesses, shapes, stacking orders, and stacking numbers of the variable performance members 21 and the special members 22 may be different for each auxiliary core material.

[0060] The special member 22 may be made of a material such as synthetic leather or paper, in addition to non-woven fabric. The variable performance member 21 and the special member 22 may be joined using an adhesive or the like. Also, the variable performance member 21 and the special member 22 do not necessarily have to be joined. However, in terms of further suppressing shape collapse of the core material body 15 and the auxiliary core materials 16 and 17 and enabling easier joining work, the configuration of the present embodiment in which the variable performance member 21 and the special member 22 are joined by thermocompression bonding has an advantage.

[0061] In addition, within the scope not departing from the gist of the present invention, it is possible as appropriate to replace the constituent elements in the above-described embodiment with well-known constituent elements, and the above-described embodiments may also be combined as appropriate.

Explanation of Reference Numerals

[0062] 1,201 Band 1a Base End Portion 2 Skin Member 3 Core Material 10 Watch 11 Watch Body 15,115 Core Material Body 16,17,216 Auxiliary Core Material 21,121,221 Variable Performance Member (First Member) 22,222 Special Member (Second Member)

Claims

1. A core material having a laminated structure in which a plurality of members including a flexible member are laminated, An outer skin member surrounding the core material, Comprising, The core material, A core material body, First and second auxiliary core materials provided between the core material body and the outer skin member, Having, The width dimension of the second auxiliary core material is smaller than the width dimension of the first auxiliary core material, a band.

2. The laminated structure, A first member having flexibility and formed including plastic, A second member thinner than the first member, The band according to claim 1 having.

3. The laminated structure, A first member having flexibility and formed including plastic, A second member having a different material from the first member, The band according to claim 1 or claim 2 having.

4. The first member has temperature dependence in which softness changes with temperature, the band according to claim 2 or claim 3.

5. The first member is a plastic sheet having flexibility and temperature dependence, The second member is a non-woven fabric, the band according to any one of claims 2 to 4.

6. The laminated structure is formed by thermocompression bonding the first member and the second member to each other, the band according to any one of claims 2 to 5.

7. The laminated structure is the core material body, the band according to any one of claims 1 to 6.

8. The laminated structure is the auxiliary core material, the band according to any one of claims 1 to 6.

9. The band according to any one of claims 1 to 8, A watch body connected to the band, Having a watch.

10. The core material has an auxiliary core material, The auxiliary core material is provided only at the base end portion which is the connection portion with the watch body in the longitudinal direction of the band, the watch according to claim 9.

Citation Information

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