JP2004069606A - Connection structure between watchcase and watchband and wristwatch having it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove restriction on exterior design and to provide a connection structure between a watchcase and a watchband and a wristwatch having it capable of further reducing generation of a gap between the end part of the watchcase and the end part of the watchband. <P>SOLUTION: A back side supporting part 211b projected to the back face of the end part 221a of the watchband 221 is arranged in the end part 211a of the watchcase 211. A contact face part 211c of the end part 211a of the watchcase is brought into contact with the end face 221c of the end part 221a in the watchband. In the back side supporting part 211b, an opening part 211d penetrating from the back face side to the end part 221a of the watchband 221 is formed. An embedded member 222 is fixed inside the end part 221a of the watchband 221. A fixing member 223 is inserted and fixed into the embedded member 222 through the opening part 211d in the back side supporting part 211b. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a connection structure between a watch case and a band and a wristwatch, and more particularly to a watch structure in which a flexible band is connected to a watch case.
[0002]
[Prior art]
Generally, a wristwatch has a structure in which a band is connected to an end of a watch body. Conventionally, there were many such bands made of leather or artificial leather, or those having a structure in which metal pieces were connected, but in recent years, flexible resin bands having flexibility are often used. It has come to be. As such a resin band, a band using a soft urethane resin and a band using a synthetic rubber having high flexibility are known.
[0003]
In recent years, watches have become more and more important as a kind of jewelry, and as a result, exterior design has become more and more important. In the exterior design of a wristwatch, a type of design that creates a sense of unity between a watch case and a band may be adopted. As a wristwatch having this type of exterior design, usually, not only a band but also a watch case made of a synthetic resin, or a watch case and a band formed integrally with a synthetic resin are commercially available.
[0004]
By the way, in general, a watch case requires a certain degree of rigidity, and a band needs sufficient flexibility to fit an arm. Therefore, the watch case and the band are configured separately. Often do. In this case, in order to create a sense of unity between the watch case and the band on the exterior design, at least the outer surface on the front side of the connecting portion between the end of the watch case and the end of the band is designed to have a continuous curved surface. There is a need to.
[0005]
A conventional wristwatch designed to give a sense of unity between the watch case and the band will be described with reference to FIGS. FIG. 6 is a partial cross-sectional view showing a connection portion between the end of the watch case and the end of the band in the conventional wristwatch 10, and FIG. 7 is a schematic perspective view showing the upper part of the relevant portion viewed obliquely from behind. It is. The end 11a of the watch case 11 is provided with a recess 11c that is recessed toward the center of the watch case, between a pair of side portions 11b that protrude rearward on both left and right sides. The portion 12a is configured to fit. A through-hole 11d is formed in the pair of side portions 11b, and the connecting rod 13 inserted into the through-hole 11d penetrates the end 12a of the band 12 inserted into the concave portion 11c. The band 12 is connected. The end portion 12a of the band 12 is provided with a tongue piece portion 12b which is formed to extend to the rear side of the watch case 11.
[0006]
FIGS. 8 and 9 show the structure of a wristwatch 100 having the same exterior design as the above-mentioned conventional wristwatch, but having a connection structure different from the above. FIG. 8 is a schematic cross-sectional view showing a watch main body of a wristwatch and a connection structure between a watch case and a band, and FIG. 9 is an exploded perspective view showing a state where a connection portion between the watch case and the band is viewed from an oblique surface side. is there. In the wristwatch 100, a protruding portion 111b is formed on an end 111a of a watch case 111, and the protruding portion 111b is fitted into a concave portion 121b provided on an end 121a of the band 121, so that the end 121a of the band 121 The watch case 111 and the band 121 are connected by inserting the connection rod 130 into the through holes 121c provided on both sides and penetrating the protrusion 111b.
[0007]
Generally, in a wristwatch having a watch case made of a hard material such as a metal or a hard resin and a band made of a flexible material such as synthetic rubber, the flexible band is deformed when worn. In addition, there is a problem that a gap is formed between the end of the watch case and the end of the band because only the band is deformed.
[0008]
Therefore, in the above-mentioned conventional wristwatch 10, in the former wristwatch 10, the deformation of the end 12a of the band 12 is suppressed by the tongue piece 12b projecting to the back side of the watch case 11, and the watch case 11 and the front side of the band 12 are Gaps are less likely to be created.
[0009]
In the latter wristwatch 100, the connecting portion between the end 111a of the watch case 111 and the end 121a of the band 121 has a structure in which the concave and convex structures provided respectively are fitted to each other. The end 121a of the band 121 is restricted by the end 111a of the band 121 so that the end 121a of the band 121 is not easily deformed, and the gap is reduced.
[0010]
[Problems to be solved by the invention]
However, in the above-mentioned conventional wristwatch, it is necessary to open a through hole for inserting a connecting rod on a side surface of a connecting portion between the watch case and the band, so that a limitation is imposed on an exterior design and the existence of the opening is not limited. However, there is a problem that a sense of quality is reduced.
[0011]
Further, in the above-mentioned conventional wristwatch, the gap generated between the end of the watch case and the end of the band is reduced by means of respective structural measures. Has a connecting structure rotatable around the connecting rod, so that the end of the band is easily deformed in the turning direction, and a gap is generated between the end of the watch case and the end of the band. There is a problem that this cannot be sufficiently suppressed.
[0012]
Therefore, the present invention is to solve the above-mentioned problem, and its object is to eliminate restrictions on the exterior design and further reduce the occurrence of a gap between the end of the watch case and the end of the band. It is an object of the present invention to provide a possible connection structure between a watch case and a band and a wristwatch provided with the same.
[0013]
[Means for Solving the Problems]
In order to solve the above problem, a connection structure between a watch case and a band according to the present invention is a connection structure between a watch case and a flexible band, and an end of the watch case has an end portion of the band. A back side support portion overlapping the back side and a contact surface portion abutting on an end surface of the band are provided, and the back side support portion has an opening formed therethrough toward an end portion of the band, and an end portion of the band is formed. An embedded member made of a material harder than the flexible material of the band is fixed in the portion, and the back side support portion and the embedded member are fixed to each other by a fixing member inserted through the opening. It is characterized by having.
[0014]
According to this invention, the end of the band is formed by the fixing member that is inserted into the opening of the back support provided at the end of the watch case fixing the back support and the embedded member to each other. The band is supported from the back side by the back side support portion, and is securely fixed to the watch case in the thickness direction and the extension direction of the band. Here, since the fixing member is exposed only on the back side of the connecting portion between the watch case and the band, there is no need to open a through hole in the side portion of the connecting portion unlike the conventional structure, so that the degree of freedom of the exterior design is improved. Is improved, and the luxurious feeling can be obtained by eliminating the side opening. Further, since the back support portion and the buried member are fixed by the fixing member as described above, the degree of freedom in the rotating direction of the band is lost in the connection structure, so that the deformation of the end portion of the band is suppressed. The deformation of the end of the band is further limited by the contact surface provided at the end of the watch case being in contact with the end of the band, so that the end of the watch case and the end of the band There is also an advantage that a gap due to deformation of the band is less likely to be generated at the connection portion on the front surface side.
[0015]
In this case, it is preferable that the embedded member is provided with a fixing hole facing the opening, and the fixing member is engaged with the fixing member while being inserted into the fixing hole. Examples of the engagement structure between the fixing member and the fixing hole include a screwing structure, a hook structure, a rotation fitting structure (a bayonet structure), and the like.
[0016]
Here, it is preferable that the buried member is in contact with the back support portion. Since the buried member is made of a material harder than the flexible material of the band, the buried member is in contact with the back side support portion, so that the back side support portion of the watch case and the end of the band are more firmly connected. Therefore, the deformation of the end of the band can be further reduced. In addition, since the watch case and the band can be positioned with high precision, the quality of the appearance can be improved, for example, the connection portion can be formed without a gap.
[0017]
Preferably, the embedded member is exposed at an end face of the band and is in contact with the contact surface. Since the embedded member is made of a harder material than the band, the deformation of the end of the band can be further reduced by the contact of the embedded member with the contact surface of the watch case. In addition, since the watch case and the band are positioned with high precision, the quality of the appearance can be improved, for example, the connecting portion between the watch case and the band can be formed without a gap.
[0018]
Further, it is preferable that a concave portion or a convex portion is provided on the contact surface portion, and a convex portion or a concave portion fitted to the concave portion or the convex portion is provided at an end of the band. As a result, the end of the watch case and the end of the band are fitted to each other in an uneven structure, so that the end of the band is more reliably regulated with respect to the watch case. Can be further reduced.
[0019]
In this case, it is preferable that the convex portion or the concave portion provided at the end of the band is a part of the embedded member. Since the convex portion or the concave portion fitted to the end portion of the watch case is a part of the hard embedded member, the end portion of the band can be more reliably regulated with respect to the watch case, and the deformation can be further reduced.
[0020]
Further, it is preferable that a back surface in contact with the back support portion at an end of the band is configured to be flat. Alternatively, it is preferable that no protrusion is provided on the back surface to be introduced into the opening of the back support portion. According to this, the end of the band can be easily attached to the end of the watch case, and the work of assembling the watch case and the band becomes easy. For example, it is also possible to provide a protrusion projecting from the back surface of the end of the band as a part of the embedded member, and to introduce this protrusion into the opening of the back support of the watch case. In this case, the introduction of the projecting portion into the opening and the fitting of the uneven structure between the contact surface portion and the buried member conflict with each other (the other operation is not performed). Obstruction), making the assembly of the watch case and the band difficult or impossible. However, the watch case and the band can be easily connected by making the back surface of the end portion of the band flat as described above, or by not providing a portion to be introduced into the opening of the back side support portion. Will be possible.
[0021]
It is preferable that the buried member is constituted by a metal receiving member having the fixing hole, and an enclosing member harder than a flexible material of the band that encloses the receiving member inside the band. . Since it is easy to increase the rigidity and hardness of the metal receiving member, it is possible to increase the fixing strength by inserting the fixing member. In addition, by providing the enclosing member separately from the receiving member so as to enclose the receiving member, the material of the enclosing member is appropriately selected (for example, the adhesiveness to the flexible material of the band). By using a good material of the same kind), the receiving member can be fixed to the inside of the band with good adhesion or firmly via the enclosing member.
[0022]
Here, as a method of manufacturing the band in which the embedded member is fixed inside, it is preferable to use an integral molding method called insert molding or outsert molding in which the embedded member is set in a mold and molded. In particular, as described above, when the embedded member in which the enclosing member includes the receiving member is fixed in the band, first, the receiving member and the enclosing member are integrated by the above-described integral molding method to manufacture the embedded member. Then, it is desirable to set the buried member in a mold and repeat the above-described integral molding method to form a band.
[0023]
Further, it is preferable that one of the watch case and the band is configured to protrude above the other surface at a surface contact portion between the end of the watch case and the end surface of the band. According to this, even if the end of the band is slightly separated from the end of the watch case at the contact portion due to bending of the band, a gap is hardly generated on the surface of the contact portion. Also has the advantage that it is less noticeable in appearance.
[0024]
Next, a wristwatch according to the present invention is characterized by having the watch case and band connecting structure according to any one of the above. ADVANTAGE OF THE INVENTION According to this invention, in a wristwatch, it becomes possible to reduce the design constraint resulting from the connection structure of a watch case and a band, and to obtain a more luxurious appearance. Further, when the flexible band bends due to stress or the like applied between the watch case and the band, a gap is hardly generated between the end of the watch case and the end of the band. Deterioration can be reduced.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of a connection structure between a watch case and a band according to the present invention and a wristwatch provided with the same will be described in detail with reference to the accompanying drawings.
[0026]
[First Embodiment]
FIG. 1 is a partial cross-sectional view of a wristwatch 200 according to a first embodiment of the present invention. FIG. 1 shows a connection portion between a watch case 211 of a wristwatch 200 and a band 221. Here, the watch case 221 is made of a metal (including an alloy), a hard synthetic resin, or the like. The band 221 has flexibility and is made of, for example, urethane resin, various elastomers, synthetic rubber, or the like. In the wristwatch 200, although not shown, a movement is housed inside the watch case 211, a display window made of glass or the like is attached to the front side of the watch case 211, A back cover made of metal, plastic, or the like is attached to the side. Note that the watch case 211 and the back cover may be integrally configured.
[0027]
The end portion 211a of the watch case 211 is provided with a plate-shaped back side support portion 211b protruding so as to overlap the back surface of the end portion 221a of the band 221. The contact surface 211c of the end 211a of the watch case 211 is in contact with the end surface 221c of the end 221a of the band 221. An opening 211d that penetrates from the back side toward the end 221a of the band 221 is formed in the back side support part 211b. In the illustrated example, the opening 211d is configured as a stepped hole having an enlarged diameter on the back side.
[0028]
The band 221 has an end 221a having a shape that fits into the end 211a of the watch case 211. More specifically, the end portion 221a of the band 221 has an end shape having a back surface portion that comes into contact with the back support portion 211b and an end surface portion that fits with the contact surface portion 211c.
[0029]
An embedded member 222 is fixed inside the end 221a of the band 221. The embedding member 222 includes a receiving member 222A and a covering member 222B that covers the receiving member 222A. The receiving member 222A is made of a material having higher hardness than the enclosing member 222B, and the enclosing member 222B is made of a material having higher hardness than the flexible material of the band 221. For example, the receiving member 222A is made of metal, and the enclosing member 222B is made of hard synthetic resin 222B. In any case, the embedded member 222 is made of a material having a higher hardness than the flexible material of the band 221 as a whole as described above.
[0030]
The fixing member 223 is fixed in a state of being inserted into the embedded member 222 through the opening 211d of the back side support portion 211b. More specifically, the fixing member 223 is a fixing screw having a male screw, and the receiving member 222A is a nut having a female screw. The fixing member 223 is screwed into the receiving member 222A through the opening 211d. The fixing member 223 is fixed to the embedded member 222, and its head engages with the step of the opening 211d, whereby the end 221a of the band 221 is supported by the back support 211b. Is held and fixed.
[0031]
The mode of fixing the embedded member 222 (the receiving member 222A) and the fixing member 223 is not limited to the above-described screwed structure, but may be achieved by enlarging the tip of the fixing member inside the embedded member 222. Alternatively, the tip of the fixing member and the embedded member 222 may be locked by a bayonet structure.
[0032]
The buried member 222 is exposed on the back surface of the end 221a of the band 221 and is in contact with the back support 211b. As a result, the embedded member 222, which is harder than the flexible band material, is in contact with the back support portion 211b of the watch case 211, so that the positioning of the watch case 211 and the band 221 can be performed with high accuracy. This makes it possible to improve the appearance and to enhance the attachment strength between the watch case 211 and the band 221. In this embodiment, both the receiving member 222A and the enclosing member 222B that constitute the embedded member 222 are exposed on the back surface of the band around the fixing hole of the receiving member 222A, and both abut against the back-side support portion 211b. Thereby, the rigidity of the attachment portion by the fixing member 223 can be further increased.
[0033]
In the present embodiment, the back surface of the end portion 221a of the band 221 is configured to be substantially flat, and substantially the whole thereof is in contact with the back support portion 211b. Thus, the work of assembling the watch case 211 and the band 221 can be easily performed.
[0034]
The band 221 in which the embedded member 222 is fixed is formed by, for example, an integral molding method (for example, insert molding or outsert molding) in which a resin material or the like is introduced into the mold with the embedded member 222 mounted in the mold. Are manufactured). The embedded member 222 can also be manufactured by the same integral molding method as described above in which a resin material or the like is introduced into a mold with the receiving member attached to the mold. As described above, the metal receiving member 222A is fixed inside the flexible synthetic resin band 221 in a state where the metal receiving member 222A is enclosed by the synthetic resin enclosing member 222B. Therefore, it is possible to increase the adhesion or the integrality between the buried member 222 and the embedded member 222, so that the fixing force of the buried member 222 in the band 221 can be increased.
[0035]
FIG. 2 is a schematic perspective view schematically showing a structure of a connection portion between the watch case 211 and the band 221 of the present embodiment. In this figure, the flexible material itself of the band 221 is shown by a one-dot chain line, and is drawn in a manner that the embedded member 222 fixed inside the band 221 can be visually recognized, that is, a transparent state. In the connection portion, in the illustrated example, two embedded members 222 are fixed in the band 221, and fixed members 223 are inserted and fixed to these embedded members 222, respectively.
[0036]
In the present embodiment, since the band 221 is fixed to the back-side support portion 211b by fixing the embedded member 222 and the fixing member 223, the band 221 has flexibility, and stress is applied to the band 221. Therefore, even if the band 221 is bent due to the above, the end 221a of the band 221 is not easily deformed. Therefore, a gap is hardly generated in the contact portion X on the front surface side between the end 211a of the watch case 211 and the end 221a of the band 221 so that the appearance is not impaired.
[0037]
Further, in the present embodiment, unlike a wristwatch having a conventional structure, there is no need to provide an opening for inserting a spring bar on a side portion of a connecting portion, so that restrictions on an exterior design are reduced, and a sense of quality is easily achieved. It is possible to obtain. In the present embodiment, the head of the fixing member 223 is exposed on the back side of the connecting portion. However, when the wristwatch 200 is worn, the fixing member 223 is hidden by the arm and cannot be seen, so the exterior The impact on the design is small.
[0038]
[Second embodiment]
Next, a wristwatch 300 according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is an exploded perspective view showing the entire configuration of a wristwatch 300 according to the present invention. The wristwatch 300 includes a watch case 311, a pair of bands 321 </ b> A and 321 </ b> B respectively connected to both ends of the watch case 311, a movement 301 housed inside the watch case 311, and a front surface of the watch case 311. It has a display window 302 to be attached, a back cover 303 attached to the back side of the watch case 301, and an external operation member 304 attached to the side of the watch case 311 and connected to the movement 301. The watch case 301 and the back cover 303 may be integrally formed. Note that the movement 301, the display window 302, the back cover 303, and the external operation member 304 are schematically illustrated.
[0039]
The connecting portion between the watch case 311 and the bands 321A and 321B connected to both ends thereof has an outer surface shape in which at least the surface and side surfaces are formed by continuous curved surfaces. The watch case 311 is made of a metal or a hard synthetic resin or the like as in the first embodiment, and the bands 321A and 321B are also made of a flexible material such as a soft rigid resin such as a urethane resin or a synthetic rubber. ing.
[0040]
FIG. 4 is a partial plan sectional view showing a state where watch case 311 and bands 321A and 321B of wristwatch 300 are connected. Here, the connection structure between the watch case 311 and the band 321A and the connection structure between the watch case 311 and the band 321B are configured symmetrically with respect to a plane orthogonal to the paper surface including the dashed line S in the drawing. One is shown in a sectional view and the other in a plan view. FIG. 5 is a longitudinal sectional view of a connection portion between the watch case 311 and the bands 321A and 321B. In the following description, the bands 321A and 321B are not particularly distinguished from each other, and are collectively referred to as "band 321".
[0041]
As shown in FIG. 5, the end 311a of the watch case 311 has a back support 311b that supports the back of the bands 321A and 321B, and a contact surface 311c that contacts the end surface of the end 321a of the band 321. . The back side support portion 311b is plate-like and slightly protrudes in the direction in which the band 321 extends. An opening 311d is formed in the back-side support 311b. The opening 311d is a stepped hole whose diameter is increased on the back surface side.
[0042]
A concave portion 311e is formed in a portion facing the end surface of the end portion 321a of the band 321 (a portion adjacent to the contact surface portion 311c). In the illustrated example, two concave portions 311e are formed in each connection portion.
[0043]
An embedded member 322 is fixed inside the end 321a of the band 321. The embedded member 322 is made of a material that is harder than the flexible material that makes up the band 321. The embedded member 322 is partially exposed on the end surface of the end 321a of the band 321 and is also exposed on the back surface of the end 321a. The embedded member 322 has a receiving member 322A made of metal or the like, and a covering member 322B made of a hard synthetic resin or the like that covers the receiving member 322A. The buried member 322 is provided with back surface exposed portions 322b and 322c that project toward the back surface of the band 321 and are exposed in a region where the planar shape is more limited than other portions. Among these, the back surface exposed portion 322b includes the receiving member 322A, and is constituted by a part of the enclosing member 322B formed in an annular shape in a region surrounding the receiving member 322A. That is, the back surface exposed portion 322b includes a part of the receiving member 322A and a part of the enclosing member 322B, and both are exposed. On the other hand, the back surface exposed portion 322c is constituted by a part of the enclosing member 322B protruding between the pair of back surface exposed portions 322b.
[0044]
Further, the receiving member 322A is provided with a flange portion 322d that protrudes to the outer periphery, and the receiving member 322A is configured to be firmly fixed in the thickness direction of the band 321 in the enclosing member 322B by the flange portion 322d. I have. Although not shown, the flange portion 322d is configured so that the receiving member 322A is locked to the enclosing member 322B in the rotation direction, such as a cut portion or a protruding portion provided in a part in the circumferential direction. Thereby, even if a strong rotational stress is applied to the receiving member 322A, the receiving member 322A is firmly fixed so as not to rotate inside the enclosing member 322B.
[0045]
The embedded member 322 is provided with an end surface portion 321c that comes into contact with the contact surface portion 311c of the watch case 311. Further, a convex portion 321e that fits into a concave portion 311e provided in the watch case 311 is formed. In this embodiment, the watch case 311 is provided with the concave portion 311e and the embedded member 322 is provided with the convex portion 321e. However, a concave portion may be provided in a part of the flexible material of the band 321. Conversely, a convex portion may be provided on the watch case 311 and a concave portion may be provided on the band or the embedded member.
[0046]
The fixing member 323 is inserted and fixed to the embedded member 322 disposed in the end 321a of the band 321 through the opening 311d of the back support 311b. More specifically, the fixing member 323 is fixed while being inserted into a fixing hole provided in the receiving member 322A of the embedded member 322. Also in this embodiment, the fixing member 323 is a fixing screw having a male screw, and the receiving member 322A is a nut having a female screw. In the present embodiment, unlike the first embodiment, the embedding member 322 has a structure in which two receiving members 322A are included by an integral enclosing member 322B.
[0047]
In the present embodiment, the contact portion on the front side between the end portion 311a of the watch case 311 and the end portion 321a of the band 321 corresponds to the contact plane between the contact surface portion 311c and the end surface portion 321c facing each other. The inclined contact surfaces 311f and 321f abut or oppose each other. Here, in the illustrated example, the contact surface portions 311f and 321f are inclined toward the watch case 311 so that the end 321a of the band 321 projects over the surface of the end 311a of the watch case 311. Contrary to the above, the contact surface may be inclined toward the band 321 so that the end 311a of the watch case 311 projects over the surface of the end 321a of the band 321.
[0048]
The present embodiment has basically the same operation and effect as the first embodiment, but also has the following operation and effect.
[0049]
First, in the present embodiment, the concave portion 311e provided on the end 311a of the watch case 311 and the convex portion 321e provided on the end surface of the end 321a of the band 321 are fitted to each other. Since the portion 321a is locked to the end 311a of the watch case 311, the deformation of the end 321a of the band 321 is further reduced. In particular, since the convex portion 321e is formed by a part of the embedded member 322 that is harder than the material of the band 321, the regulation of the watch case 311 with respect to the end portion 321a of the band 321 can be reliably performed.
[0050]
In the present embodiment, a part of the planar shape of the embedded member 322 protrudes to the rear surface side as the back surface exposed portions 322b and 322c, and is in contact with the back side support portion 311b. The structure has a combined structure, and the fixing force of the fixing member 323 can be increased. Further, the receiving member 322A is provided with a flange portion 322d, and the receiving member 322A is fixed in the thickness direction and the rotation direction of the band 321 by the flange portion 322d, so that the connection strength between the watch case 311 and the band 321 is improved. It can be further improved.
[0051]
Furthermore, in the present embodiment, an inclined contact surface portion is provided on the watch case side (or the band side) at the surface contact portion between the watch case 311 and the band 321, or the end of the watch case 311. Either the portion 311a or the end 321a of the band 321 protrudes on the other surface. Thereby, even if the end portion 321a of the band is slightly deformed, a gap is hardly formed between the watch case 311 and the band 321 at the contact portion, and even if the gap is formed, the gap is inconspicuous in appearance. Can be configured. Therefore, deterioration of the exterior design and loss of luxury can be suppressed.
[0052]
It should be noted that the connection structure of the watch case and the band and the wristwatch of the present invention are not limited to the above illustrated examples, and it is needless to say that various changes can be made without departing from the gist of the present invention.
[0053]
【The invention's effect】
As described above, according to the present invention, restrictions on the exterior design can be reduced, and a high-grade appearance can be configured.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a connection structure of a watch case and a band and a structure of a first embodiment of a wristwatch according to the present invention.
FIG. 2 is a schematic exploded perspective view showing the structure of the first embodiment.
FIG. 3 is an exploded perspective view showing a connection structure of a watch case and a band and a structure of a second embodiment of a wristwatch according to the present invention.
FIG. 4 is a partial cross-sectional plan view showing a connected body of a watch case and a band according to a second embodiment.
FIG. 5 is an enlarged vertical sectional view of a connection structure according to a second embodiment.
FIG. 6 is a longitudinal sectional view of a connecting portion of a watch case and a band in a conventional wristwatch.
FIG. 7 is a schematic perspective view of a connection portion of the wristwatch shown in FIG.
FIG. 8 is a longitudinal sectional view showing a watch main body and a connecting portion in another conventional wristwatch.
9 is a schematic perspective view of a connecting portion of the wristwatch shown in FIG.
[Explanation of symbols]
200, 300 ··· watch, 211, 311 ··· watch case, 211a, 311a ··· end, 211b, 311b ··· back side support, 211c, 311c ··· contact surface, 211d, 311d · ..Openings, 221,321 ... Bands, 221a, 311a ... Ends, 222,322 ... Buried members, 222A, 322A ... Receiving members, 222B, 322B ... Containment members, 223 , 323: fixing member, 311e: concave portion, 321e: convex portion, 311f, 321f: contact surface portion, X: contact portion

Claims (9)

A connection structure of a watch case and a flexible band,
At the end of the watch case, a back side support portion overlapping the back side of the end of the band, and a contact surface portion that contacts the end surface of the band are provided.
In the back support portion, an opening penetrating toward the end of the band is formed, and within the end of the band, an embedded member made of a material harder than the flexible material of the band is provided. Fixed,
The connection structure between a watch case and a band, wherein the back support portion and the buried member are fixed to each other by a fixing member inserted through the opening. A connection structure between a watch case and a band, wherein the embedded member is provided with a fixing hole facing the opening, and the fixing member is engaged with the fixing member while being inserted into the fixing hole. The connection structure of a watch case and a band according to claim 1, wherein the embedded member is in contact with the back support portion. The watch case and the band according to any one of claims 1 to 3, wherein the buried member is exposed at an end surface of the band and is in contact with the contact surface portion. Construction. The concave portion or the convex portion is provided on the contact surface portion, and a convex portion or a concave portion fitted to the concave portion or the convex portion is provided at an end of the band. Item 5. A connection structure between a watch case and a band according to Item 4. The connection structure of a watch case and a band according to claim 5, wherein the convex portion or the concave portion provided at an end of the band is a part of the embedded member. The embedding member is constituted by a metal receiving member having the fixing hole, and an enclosing member harder than a flexible material of the band that encloses the receiving member inside the band. The connection structure of a watch case and a band according to claim 1. At a portion where the end of the watch case and the end face of the band are in contact with each other on the surface side, one of the watch case and the band is configured to project on the other surface. Item 2. A connection structure between the watch case and the band according to Item 1. A wristwatch comprising the watch case and the band connecting structure according to any one of claims 1 to 8.

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