JP2007082599A - Connector, band and watch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector preventing unintended disconnection of piece members from each other, a band and a watch provided with the band. <P>SOLUTION: The connector 5 inserted into through-holes 411 and 421 respectively formed in two adjacent piece members 4 for connecting the two piece members 4 is provided with a pair of linear parts 51 facing each other and connection parts 52 and 53 connecting the end parts of the pair of linear parts 51. At least at one of the pair of linear parts 51, a projecting part 511 projecting in a direction of separating from the other linear part 51 is formed. At the projecting part 511, an abutting part 516 which projects in a direction of approaching the linear part 51 on the opposite side of the linear part 51 where the projecting part 511 is formed and can abut on the linear part 51 on the opposite side, is formed. Thus, since the abutting part 516 resists the displacement of the connector 5, the displacement is suppressed, the falling of the connector 5 is prevented and thus the piece members 4 are stably connected. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connector for connecting adjacent piece members to each other, a band provided with the same, and a timepiece.

Conventionally, a wristband or the like may use a metal band that fixes a watch body to an arm or the like. Such a band is generally configured to connect a plurality of piece members, and is configured to adjust the length of the band itself by adjusting the number of the piece members.
As a method of connecting the piece members of such a band to each other, through holes (through holes) are formed in the ends of the respective piece members in a direction substantially perpendicular to the connecting direction of the piece members. There is known a method in which a connecting tool (connecting pin) is inserted through each through hole in a connected state (for example, see Patent Document 1).

  The coupling tool used in the band length adjusting structure described in Patent Document 1 is formed by folding a metal wire having a round cross-section and folding a part of the metal wire to form a protruding portion protruding outward. Is. Moreover, the step hole part larger than the inner periphery of a through-hole is formed in the through-hole of a piece member. Then, with the two piece members connected, when the coupling tool is inserted into the through hole of the two piece members, the protruding portion of the coupling tool is engaged with the stepped hole portion formed in the through hole of one piece member. To do. Thereby, a connector can be fixed in a through-hole, and a piece member can be connected.

Japanese Patent Laid-Open No. 10-80307

  However, in the length adjustment structure described in Patent Document 1, there is a problem that the connecting tool is easily displaced when the stepped hole portion of the piece member is formed long. That is, if the protrusion of the connector is lengthened according to the length of the elongated stepped hole, the strength of the protrusion may not be ensured, and the protrusion may be displaced. In such a case, there exists a problem that a connection tool will drop | omit from a through-hole and the connection of piece members will remove | deviate.

  The objective of this invention is providing the timepiece provided with the coupling tool and band which can make it hard to remove | deviate the connection of piece members, and the said band.

  In order to achieve the above-described object, the connector of the present invention is a connector that is inserted through through holes formed in two adjacent piece members and connects the two piece members, and is a pair of opposed members. And at least one of the pair of linear portions projecting in a direction away from the other linear portion. The projection is protruded in a direction approaching the linear portion on the opposite side to the linear portion on which the projection is formed, and is contactable with the linear portion on the opposite side. A contact portion is formed.

According to the present invention, it is possible to suppress the displacement of the coupling tool in the protruding portion, and thus it is possible to prevent the coupling tool from falling off the piece member.
In other words, the contact portion that can contact the other linear portion is formed in the protrusion portion formed in the linear portion, so that the acting force acting in the direction in which the protrusion portions approach each other is The contact portion acts as a fulcrum. For this reason, even when an unnecessary force is applied to the connecting tool due to the movement of the piece member after the connecting tool is inserted into the through-hole, the connecting tool can be prevented from being displaced. Accordingly, it is possible to prevent the coupling tool from dropping out of the through hole, and it is possible to make it difficult to disconnect the piece members from each other as compared with the coupling tool in which the contact portion is not formed.

In addition, when a connecting tool is inserted into a through hole in which a stepped hole portion is widely formed, an acting force in a direction in which the linear portions are close to each other is easily applied to the connecting tool inside the through hole due to movement of the piece member or the like. . For this reason, the displacement of the connection tool inside the through hole can be prevented by using the connection tool provided with the contact portion of the present invention for such a piece member. Therefore, the stable connection state of the piece member can be maintained.
In addition, when the protrusions are formed in each of the pair of linear portions, since it has symmetry with respect to the axial direction of the connector, the direction of the connector is changed when inserted into the through hole. The trouble of matching can be saved, and the connector can be inserted more easily.

In the present invention, at both ends of the projecting portion, a fulcrum portion projecting in a direction approaching the linear portion opposite to the linear portion on which the projecting portion is formed, and the fulcrum portion is the projecting portion. When the projection is biased, it is brought into contact with the opposite linear portion, and the abutting portion is in contact with the opposite linear portion. It is preferable to be in contact with the part.
According to this invention, the pushing force to the through-hole of a connector can be reduced.
That is, when the connecting tool is pushed into the through hole formed in the piece member from one end, the pushing force is formed at the end of the protruding portion with a predetermined space between the pair of linear portions. When the fulcrum part is brought into contact with the linear part on the opposite side to the linear part on which the fulcrum part is formed, the displacement amount of the protruding part is increased. As a result, it is possible to easily cause displacement of the protruding portion when the connector is inserted, so that the pushing force can be reduced as compared with the case where the end portion of the protruding portion is separated from the opposite linear portion. Can do. Therefore, the connector can be easily inserted into the through hole.

Further, when a large inner peripheral portion is formed in the through hole, a gap is formed between the fulcrum portion and the linear portion on the opposite side when the connector is inserted into the through hole. Therefore, the fulcrum portion and the linear portion on the opposite side are brought into contact with each other by the pushing force against the connecting tool, and the connecting tool is likely to be displaced. Further, in the vicinity of the abutting portion of the protruding portion, a strong pushing force is required because the abutting portion is in contact with the other linear portion, and in the vicinity of the fulcrum portion on the proximal side in the insertion direction, the distal end side in the insertion direction is required. Similar to the vicinity of the fulcrum part, the displacement of the coupling tool is likely to occur, so that the pushing force required for insertion becomes weak. And if a protrusion part is settled in the large part of the inner periphery of a through-hole, the pushing force required for insertion will become still weaker.
According to this, the position in the through-hole of the said connecting tool can be grasped | ascertained by the change of the pushing force to a connecting tool. Therefore, based on the pushing force to a connector, a connector can be arrange | positioned in the appropriate position in a through-hole.

Alternatively, in the present invention, at both ends of the protruding portion, a fulcrum portion that is in contact with a linear portion on the opposite side to the linear portion on which the protruding portion is formed is provided, It is preferable that when the protruding portion is not biased, the protruding portion is separated from the opposite linear portion, and when the protruding portion is biased, the protruding portion is brought into contact with the opposite linear portion.
According to the present invention, when a stepped hole portion is formed in the through hole, the position of the connector in the through hole can be grasped based on the change in the pushing force to the connector.

That is, when inserting a connecting tool into a through-hole formed with a large inner circumference, the fulcrum is in contact with the opposite linear part in the vicinity of the fulcrum on the distal side in the insertion direction. The displacement of the part is difficult to occur, and a strong pushing force is required to insert the connector into the through hole. Here, when a strong pushing force is applied to the connector, the contact portion and the linear portion on the opposite side come close to each other by the gap between the contact portion and the linear portion on the opposite side. Abutted. Thereby, the displacement of the connector in the protruding portion is likely to occur, and the connector is inserted into the through hole with a weak pushing force. If the connector is inserted into the through-hole in this state, a strong pushing force is required again near the fulcrum on the proximal side in the insertion direction, and if the protrusion fits in a large portion of the inner periphery, it is necessary for insertion. The pushing force is minimal.
According to this, the position of the connector in the through hole can be easily grasped by the change in the pushing force. Therefore, the connector can be easily arranged at an appropriate position in the through hole.

In addition, since no gap is formed between the fulcrum part formed at both ends of the projecting part and the linear part on the opposite side, a load such as torsion occurred between the piece members connected by the connector. Even in this case, the protrusions are not easily displaced. Accordingly, it is possible to suppress the disconnection of the connector from the through hole.
Further, when the connector inserted into the piece member is taken out, the maximum drawing force is required at the first stage of taking out as in the case of insertion. For this reason, the disconnection of the connector from the piece member is further suppressed, and the inconvenience that the connector protrudes from the piece member can be further suppressed.

In this invention, it is preferable that the said connector has a substantially symmetrical structure centering on the approximate center of the axial direction of the said connector.
According to the present invention, since the coupling tool has a substantially symmetrical structure, the coupling tool can be inserted into the through hole of the piece member from both ends of the axial end portions of the coupling tool, and stable. Thus, the piece members can be connected. Accordingly, it is possible to reduce the complexity of connecting the piece members.

  Further, the band of the present invention is a band provided with a plurality of piece members and the above-described coupler that is inserted through the through holes formed in each of the adjacent piece members and connects the adjacent piece members. The inner periphery of the through hole formed in one piece member among the through holes through which the coupler is inserted is formed larger than the inner periphery of the through hole formed in the other piece member, The protruding part of the connector is arranged at a position corresponding to the large through hole.

Here, as the piece member, a convex portion protruding in a convex shape is formed at one end portion, and a concave portion combined with the convex portion of the other piece member is formed at the other end portion, and connected to the convex portion and the concave portion. A piece member in which a through hole through which the tool is inserted is formed.
According to the present invention, it is possible to achieve the same effect as the above-described connector, and thereby it is possible to configure a band that stabilizes the connection state of the piece members and simplifies the manufacturing process. Further, even when a tensile force is repeatedly applied between the piece members, the contact portion formed on the protruding portion of the coupler acts against the pulling force by acting a reaction force. Can be further suppressed. Therefore, the band connection force can be maintained, and a band excellent in durability can be configured.

That is, in the manufacture of the piece member of the present invention, it is not necessary to form a stepped hole portion unlike the conventional piece member, so that the piece member manufacturing process can be simplified, and the band manufacturing process is simplified. be able to.
Moreover, the protrusion part of a connection tool is arrange | positioned in the through-hole which enlarged the inner periphery of the piece member. Here, if the piece member is enlarged, the through hole having an enlarged inner circumference may become longer, but even when the protruding portion is formed longer in accordance with such a through hole, the linear portions in the direction in which the linear portions approach each other. Since the abutting portion abuts against the acting linear force against the acting force, displacement of the coupling tool inside the through hole can be suppressed.
Thereby, it can suppress that a connector falls out of a through-hole, and can connect a piece member stably. Therefore, the manufacturing process of the piece member can be simplified, and a band capable of maintaining a stable connected state can be configured.

In the present invention, the cross-sectional dimension of the coupling tool in the protruding portion is larger than the cross-sectional dimension of the through hole formed in the other piece member, and smaller than the cross-sectional dimension of the through hole formed in the one piece member. It is preferable.
According to the present invention, the cross-sectional dimension of the connector in the protruding portion is formed smaller than the cross-sectional dimension of the through-hole formed with a large inner circumference. According to this, when the protrusion of the connector is located inside the through-hole and the connector is connected to the adjacent piece member, the protrusion of the connector is formed of the through-hole having a large inner circumference. It is possible not to press against the inner wall. For this reason, it can prevent that the said connection tool prevents rotation of the piece member centering on a through-hole. Accordingly, the piece member can be smoothly rotated, and the degree of freedom of rotation of the piece member can be improved.
In addition, since the cross-sectional dimension of the coupling tool at the protruding portion is larger than the cross-sectional dimension of the through-hole that is not the through-hole having a large inner circumference, it is possible to prevent the coupling tool from falling off the through-hole. it can.

In the present invention, the length dimension of the through hole formed in the one piece member is made larger than the length dimension of the through hole formed in the other piece member, and the projecting portion is the one piece. It is preferable to have a length dimension corresponding to the length dimension of the through-hole formed in the member.
According to the present invention, since the protruding portion is formed long in the linear portion, it is possible to further suppress the connecting tool from dropping from the through hole of the piece member.
That is, the length dimension of the through hole having a large inner circumference is larger than the length dimension of the other through hole, and the protrusion has a length dimension corresponding to the length dimension of the through hole having a large inner circumference. When an acting force such as twisting is applied to the piece members connected by the coupler, the influence of the acting force on the coupler can be reduced. Therefore, the displacement of the connection tool can be further suppressed, and the connection of the piece members can be further stabilized.

Moreover, the timepiece of the present invention is characterized in that the above-described band is attached to a timepiece main body for displaying time.
According to the present invention, the same effect as that of the above-described band can be obtained.
That is, the band attached to the watch body includes the above-described piece member and the connecting tool, thereby simplifying the manufacturing process of the piece member and maintaining the stable connection state of the piece member. The stability of the band can be maintained even by repeated use. For example, when the timepiece of the present invention is a wristwatch, even if the piece member moves while the wristwatch is worn on the wrist or the like, it is particularly preferable because the coupling member is prevented from falling off.

  According to the present invention, the contact portion formed on the protruding portion of the coupler is configured to be able to contact the linear portion on the opposite side of the linear portion on which the contact portion is formed. When the contact portion comes into contact with the opposite linear portion, it is possible to resist the displacement force applied to the coupling tool. Therefore, unnecessary displacement of the connector can be suppressed, and the connector can be prevented from falling off from the piece member. In addition, it is possible to make it difficult to disconnect the piece members constituting the band.

[1. First Embodiment]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings.
FIG. 1 is a plan view showing a timepiece 1 according to the first embodiment of the present invention.
As shown in FIG. 1, the timepiece 1 of the present embodiment is configured as a wristwatch including a timepiece main body 2 and a band 3 attached to the timepiece main body 2.
Of these, the watch body 2 is not shown in detail, but a watch display unit for displaying time, a drive mechanism for driving the watch display unit, and a power source such as a mainspring or a battery for supplying drive energy to the drive mechanism. Have a configuration built in a metal case made of stainless steel, titanium alloy or the like. In the present embodiment, the timepiece 1 is configured as a wristwatch that displays time in an analog manner, but is not limited thereto, and may be configured as a wristwatch that digitally displays time.

FIG. 2 is a schematic perspective view showing the band 3 used in the timepiece 1.
As shown in FIGS. 1 and 2, the band 3 includes a plurality of piece members 4 and a connection pin 5 as a connection tool of the present invention, and the plurality of piece members 4 are connected to each other by the connection pins 5. It has a strip shape.
Among these, as shown in FIG. 2, the piece member 4 is formed by a convex portion 41 in which a substantial center in the longitudinal direction (width direction) of the piece member 4 projects in a direction orthogonal to the longitudinal direction, and the convex portion 41 is formed. It is configured as an integrally molded product having a concave portion 42 formed at the end opposite to the formed end and projecting at both ends.

Inside the convex portion 41 and the concave portion 42, through holes 411 and 421 having a substantially circular shape in sectional view are formed along the longitudinal direction of the piece member 4. Among these, the through hole 411 formed in the convex portion 41 is slightly longer than each of the through holes 421 formed in the concave portion 42, while the inner periphery of the through hole 411 is larger than the inner periphery of the through hole 421. Has been.
In such a piece member 4, the connecting pin 5 is inserted into each through hole 411, 421 in a state where the convex portion 41 of one piece member 4 and the concave portion 42 of the other piece member 4 are combined. As a result, the bands 3 are formed.

FIG. 3 is a side view showing the connecting pin 5.
As shown in FIG. 3, the connecting pin 5 is formed of a metal linear member having a substantially semicircular shape in cross-section with a radius r1. The connecting pin 5 has a substantially symmetrical structure centered on the approximate center of the connecting pin 5 in the axial direction, and is configured in a substantially U shape when viewed from the side so that the straight cross-sectional portions face each other. Has been. That is, the connecting pin 5 includes a pair of linear portions 51 that are opposed substantially in parallel, and the linear portions 51 are connected by a bent portion 52 that is formed by bending a linear member that constitutes the connecting pin 5. And it is set as the structure connected by the edge part 53 which the edge parts of a linear member contact | abut. That is, the bent portion 52 and the end edge portion 53 correspond to the connecting portion of the present invention.

  A projecting portion (dowel) 511 projecting in a direction away from the other linear portion 51 is formed in the approximate center of each linear portion 51, and between the projecting portion 511 and the bent portion 52, and Flat portions 512 and 513 are formed between the protruding portion 511 and the end edge portion 53, respectively. Further, fulcrum portions 514 and 515 that protrude in the direction approaching the other linear portion 51 are formed at both ends of the protruding portion 511.

  Among these, the fulcrum part 514 is formed between the flat part 512 and the protrusion part 511, and the fulcrum part 515 is formed between the flat part 513 and the protrusion part 511. From such a fulcrum part 514 to the protrusion part 511 and from the fulcrum part 515 to the protrusion part 511, it inclines linearly. By adjusting the inclination angle, the pushing force and the pulling force of the connecting pin 5 can be controlled.

  The respective fulcrum portions 514 are configured not to come into contact with each other before displacement of the connecting pin 5 at the time of insertion into the through holes 411 and 421 of the piece member 4, that is, when no urging force is applied to the protruding portion 511, A gap is formed between each fulcrum part 514. That is, the distance between each fulcrum part 514 is adjusted so that it may not contact | abut before displacement. Similarly, the fulcrum portions 515 are configured not to contact each other before the connection pin 5 is displaced. In addition, you may set suitably the distance between each fulcrum part 514,515.

  Here, the length dimension L1 in the axial direction of the connecting pin 5 of the projecting portion 511 is the length dimension L2 from the bent portion 52 to the fulcrum portion 514 and the length dimension from the end edge portion 53 to the fulcrum portion 515. It is formed to be longer than each of L3. Further, the protruding portion 511 is formed such that the length dimension L1 of the protruding portion 511 is slightly shorter than the length dimension of the through hole 411 formed in the convex portion 41. The length dimension L2 and the length dimension L3 are substantially the same, and the length dimensions L2 and L3 are shorter than the respective length dimensions of the through-hole 421 formed in the concave portion 42 of the piece member 4 described above. The connecting pin 5 is formed so as to be.

Furthermore, the cross-sectional dimensions L4 and L5 of the connecting pin 5 in the flat portions 512 and 513 of the connecting pin 5 before displacement are substantially the same, and the cross-sectional dimensions L4 and L5 are cross-sections that are the diameters of the through holes 421. It is formed to be smaller than the dimension.
On the other hand, the cross-sectional dimension L6 of the connecting pin 5 in the protrusion 511 before displacement is formed to be larger than the cross-sectional dimension that is the diameter of the through-hole 421 and smaller than the cross-sectional dimension of the through-hole 411. For this reason, not only can the connection pin 5 be prevented from dropping out of the through holes 411 and 421, but the protrusion 511 does not press against the inner wall of the through hole 411 when the connection pin 5 is inserted into the through holes 411 and 421. Can be. For this reason, it is possible to prevent the rotation about the through holes 411 and 421 between the piece members 4 connected by the connection pin 5 from being disturbed.

  A contact portion 516 that protrudes to the side close to the other linear portion 51 is formed at a substantially central portion of the protrusion 511, and the protrusion 511 is formed in a substantially W shape in a side view. For this reason, the connecting pin 5 has a substantially symmetrical structure with the center in the axial direction of the connecting pin 5 as the center. Thereby, when inserting the connecting pin 5 into the through holes 411 and 421 of the adjacent piece members 4, the connecting pin 5 may be inserted from either the bent portion 52 or the end edge portion 53. The complexity at the time of insertion of the pin 5 can be eliminated, and the piece member 4 can be easily connected.

  Here, the contact portions 516 formed on the respective protrusions 511 are in contact with each other. That is, before the connection pin 5 is displaced, the fulcrum parts 514 and the fulcrum parts 515 are separated from each other, while the contact parts 516 are in contact with each other. For this reason, when a displacement force is applied to the connection pin 5, the contact portion 516 resists the displacement force, so that the connection pin 5 can be prevented from being displaced too much.

FIG. 4 is a cross-sectional view of the band 3 showing a state where the connecting pin 5 is inserted into the through holes 411 and 421.
Hereinafter, the displacement of the connecting pin 5 when the connecting pin 5 is inserted into the through holes 411 and 421 will be described. In addition, in the following description, although the case where the connection pin 5 is inserted from the bending part 52 side is demonstrated, the case where it inserts from the edge part 53 side is also the same.
In a state where the convex portions 41 and the concave portions 42 of the two piece members 4 are combined, the connecting pin 5 is inserted into the through hole 421 formed in the concave portion 42. At this time, when the connecting pin 5 is inserted from the bent portion 52 side, the end of the protruding portion 511 of the connecting pin 5 on the distal end side in contact with the opening portion outside the through hole 421.
Here, when a stronger pressing force is applied to the connecting pin 5, the fulcrum portions 514 on the bent portion 52 side formed at the end portions of the protruding portions 511 come close to each other and are finally brought into contact with each other. As a result, displacement occurs in the protrusions 511, the distance between the protrusions 511 is shortened, and the end of the protrusions 511 on the insertion direction front end side is pushed into the through hole 421.

  Thereafter, as the pushing force is increased, the end portion of the protruding portion 511 on the distal side in the insertion direction is inserted into the through hole 421, and the vicinity of the contact portion 516 that is in contact with each other is inserted into the through hole 421. Therefore, the maximum pushing force in inserting the connecting pin 5 is required. This is because the contact portions 516 that are in contact with each other resist a force in a direction in which the protrusions 511 are close to each other, that is, a force that attempts to displace the protrusions 511. This maximum pushing force is necessary until the vicinity of the contact portion 516 of the protruding portion 511 passes through the through hole 421.

  As the contact portion 516 of the connecting pin 5 passes through the through hole 421 and is inserted into the through hole 411, the pushing force required to insert the connecting pin 5 starts to decrease. When the entire protruding portion 511 of the connecting pin 5 is inserted into the through hole 411 formed in the convex portion 41 of the piece member 4, the connecting pin 5 is inserted into the through holes 411 and 421, that is, the piece. The connection of the member 4 is completed.

  Here, since the cross-sectional dimension of the connecting pin 5 before displacement in the protrusion 511 is larger than the cross-sectional dimension of the through-hole 421 and smaller than the cross-sectional dimension of the through-hole 411, the displacement in the protrusion 511 is restored. At this time, the cross-sectional dimension of the connecting pin 5 in the protrusion 511 is larger than the cross-sectional dimension of the through hole 421, and is large enough that the protrusion 511 is not pressed against the inner wall of the through hole 411.

Further, the length dimension of the through hole 411 is slightly larger than the length dimension of the protruding portion 511, and the protruding portion 511 does not act on the inner wall of the through hole 411. The pushing force with respect to the connecting pin 5 when it fits inside the hole 411 is the smallest of the pushing forces when the connecting pin 5 is inserted into the through holes 411 and 421.
For this reason, the position of the protrusion 511 in the through holes 411 and 421 can be grasped by the change in the pushing force. Therefore, it is possible to grasp that the protruding portion 511 is accommodated in the through hole 411 with the reduction of the pushing force as a guide, and the connecting pin 5 can be disposed at an appropriate position in the through holes 411 and 421.

  Moreover, since the edge part of the protrusion part 511 inclines linearly, it is easy to convert the pushing force to the connection pin 5 into the displacement force of the connection pin 5 to the direction in which each protrusion part 511 adjoins. Can do. Therefore, the connecting pin 5 can be inserted into the through holes 411 and 421 more easily.

The following effects can be produced by the connecting pin 5 of the present embodiment as described above.
(1) Each protrusion 511 formed on the linear portion 51 of the connecting pin 5 is formed with a contact portion 516 that is in contact with the other linear portion 51. According to this, since the pair of contact portions 516 resists the acting force acting in the direction in which the protruding portions 511 approach each other, the connecting pin 5 is inserted into the through holes 411 and 421 of the piece member 4. When it is done, it can suppress that the protrusion part 511 displaces unnecessarily inside the through-holes 411 and 421. Therefore, it is possible to prevent the connecting pin 5 from dropping out of the through holes 411 and 421, and the connection of the bands can be stably maintained.
Further, even when a tensile force is repeatedly applied between the piece members 4, the contact portion 516 formed on the protruding portion 511 of the connecting pin 5 exerts a reaction force, so that the tensile force can be resisted. Further, the deformation of the protruding portion 511 can be further suppressed. Therefore, the band 3 excellent in durability can be configured.

  (2) The piece member 4 has a convex portion 41 and a concave portion 42, and through-holes 411 and 421 that are substantially parallel to the longitudinal direction are formed in the convex portion 41 and the concave portion 42. Here, the cross-sectional dimension, which is the diameter of the through-hole 411, is larger than the cross-sectional dimension of the through-hole 421, and the projecting portion 511 of the connecting pin 5 according to the length dimension of the through-hole 411 is provided in the through-hole 411. Be placed. According to this, the through hole 411 acts like a stepped hole portion of a conventional piece member, and the step of forming a stepped hole portion having a different cross-sectional dimension in any of the through holes 411 and 421 can be omitted. it can. Therefore, the manufacturing process of the piece member 4 can be simplified compared with the conventional one.

(3) The connecting pin 5 has a projecting portion 511 formed substantially at the center of the linear portion 51, and has a generally symmetrical structure with the center in the axial direction of the connecting pin 5 as a whole. According to this, it can insert in the through-holes 411 and 421 of the piece member 4 without considering the directionality of the connecting pin 5. Accordingly, since the connecting pin 5 can be inserted into the through holes 411 and 421 from the bent portion 52 side or from the end edge portion 53 side, the complexity at the time of connecting the piece members can be reduced. .
Further, since the connecting pin 5 is formed in a substantially symmetrical structure, even when a load is generated between the piece members 4, a reaction force acts substantially symmetrically about the approximate center in the axial direction of the connecting pin 5. It will be. Thereby, the relative movement of the connecting pin 5 with respect to the piece member 4 can be reduced, and the connecting pin 5 can be arranged at a balanced position in the through holes 411 and 421.
Furthermore, the protrusion 511 is formed at the approximate center of the connecting pin 5, and when the connecting pin 5 is inserted into the through holes 411, 421, the portion from the bent portion 52 to the fulcrum 514 of the connecting pin 5, or The part from the edge part 53 to the fulcrum part 515 is first inserted into the through hole 421. According to this, the connecting pin 5 can be inserted into the through holes 411 and 421 using the portion as a guide. Therefore, it is possible to more easily insert the connecting pin 5 into the through holes 411 and 421.

  (4) The cross-sectional dimension of the through-hole 411 of the piece member 4 is made larger than the cross-sectional dimension of the connecting pin 5 in the projecting portion 511 before displacement, and the cross-sectional dimension of the connecting pin 5 in the projecting portion 511 before displacement is the through-hole. It is larger than the cross-sectional dimension of 421. According to this, when the protruding portion 511 of the connecting pin 5 is accommodated in the through hole 411, the protruding portion 511 can be prevented from being pressed against the inner wall of the through hole 411. Therefore, the resistance at the time of rotation of the piece member 4 can be suppressed, and smooth rotation of the piece member 4 can be realized.

  (5) From the protrusion part 511 of the connection pin 5 to each fulcrum part 514,515, it is set as the structure inclined linearly. According to this, when the connecting pin 5 is inserted into the through hole 421 and the protruding portion 511 comes into contact with the opening portion of the through hole 421, the protruding portion 511 is displaced along the inclination of the protruding portion 511. It will be. According to this, the pushing force to the connection pin 5 can be efficiently converted into the displacement force of the connection pin 5. Therefore, the pushing force of the connecting pin 5 into the through hole 421 can be reduced, and the connecting pin 5 can be easily inserted into the through hole 421. Further, by adjusting the inclination angle of the inclined portion, it is possible to control the pushing force and the drawing force with respect to the connecting pin 5.

(6) The length dimension of the through-hole 411 of the piece member 4 is larger than the length dimension of each through-hole 421, and the cross-sectional dimension of the through-hole 411 is larger than the cross-sectional dimension of the through-hole 421. The length L1 of the protrusion 511 of the connecting pin 5 inserted into the through-holes 411 and 421 is the length L2 from the bent portion 52 to the fulcrum 514 and from the edge 53 to the fulcrum. The length L3 is longer than each of the lengths L3 up to 514.
According to this, since the protrusion part 511 is formed most widely in the linear part 51, the connection pin 5 can be stably arrange | positioned inside the through-holes 411 and 421. In addition, when an action force such as a twist is applied to the piece member 4 after the piece member 4 is connected, the influence of the action force on the connection pin can be reduced. Therefore, the displacement of the connecting pin 5 can be further suppressed, and the connecting pin 5 can reliably connect the two piece members 4, so that the band 3 can be further stabilized.

  (7) The fulcrum portions 514 and 515 formed at both ends of the projecting portion 511 are not in contact with each other before the connection pin 5 is displaced, and when the connection pin 5 is inserted into the through hole 421, respectively. Abuts to displace the protrusion 511. According to this, since there is a gap between the respective fulcrum portions 514 and 515, the protruding portion 511 can be easily displaced by the gap. Therefore, compared with the case where the fulcrum portions 514 and 515 are not formed and the case where the fulcrum portions 514 and 515 are in contact with each other, the pushing force and the pulling force of the connecting pin 5 can be reduced.

(8) As described above, the fulcrum portions 514 and 515 are not in contact with each other before the connection pin 5 is displaced, but are in close contact with each other as the connection pin 5 is inserted into the through hole 421. The protrusion 511 is displaced. On the other hand, as described above, unnecessary displacement of the protruding portion 511 is suppressed by the abutting portion 516 formed substantially at the center of the protruding portion 511. Furthermore, the length dimension L1 of the protrusion 511 is slightly shorter than the length dimension of the through hole 411.
Here, when the connecting pin 5 is inserted into the through-holes 411 and 421 from the bent portion 52, the protruding portion 511 comes into contact with the opening portion of the through-hole 421, and the fulcrum portions 514 act so as to be close to each other. 511 is displaced. Due to the displacement of the protrusion 511, the protrusion 511 is inserted into the through hole 421. If a pushing force is further generated on the connecting pin 5 in this state, the pushing force is maximized when the vicinity of the contact portion 516 is inserted into the through hole 421. When the connecting pin 5 is pushed in while the maximum pushing force is applied and the vicinity of the contact portion 516 passes through the through hole 421 and reaches the inside of the through hole 411, the necessary pushing force decreases. Then, when the end of the protruding portion 511 on the proximal side in the insertion direction passes through the through hole 421, that is, when the entire protruding portion 511 is inserted into the through hole 411, the pushing force is minimized.
By such a change in the pushing force, the position of the protruding portion 511 in the through holes 411 and 421 can be grasped, in other words, whether or not the connecting pin 5 is properly inserted into the through holes 411 and 421. Judgment can be made. The positions of the protruding portions 511 at the through holes 411 and 421 can also be applied when the connecting pin 5 is taken out by applying a pulling force to the connecting pin 5. Therefore, the pushing force and the pulling force applied to the connecting pin 5 can be controlled by increasing / decreasing the pushing force and the pulling force of the connecting pin 5, and the connecting pin 5 can appropriately increase / decrease the pushing force. It can be a measure of whether or not it has been inserted.

[2. Second Embodiment]
Next, the band 3A according to the second embodiment of the present invention will be described.
The band 3A according to the second embodiment includes the same piece member 4 as the band 3 shown in the first embodiment, but the shape of the connecting pin 5A for connecting the piece member 4 is the above-described connecting pin 5. Is different. In the following description, parts that are the same as or substantially the same as those already described are assigned the same reference numerals and description thereof is omitted.

FIG. 5 is a cross-sectional view of the band 3 </ b> A showing a state where the connecting pin 5 </ b> A is inserted into the through holes 411 and 421 of the piece member 4.
As shown in FIG. 5, the connecting pin 5 </ b> A is inserted into a through hole 421 formed in the concave portion 42 of the piece member 4 and a through hole 411 formed in the convex portion 41, and connects two adjacent piece members 4. . The connecting pin 5A has the same configuration as the connecting pin 5 described above, that is, includes a pair of linear portions 51, a bent portion 52, and an end edge portion 53. The contact state of the fulcrum portion is the same as that of the connecting pin 5. Is different.

More specifically, a flat part 512, a fulcrum part 514A, a protruding part 511, a fulcrum part 515A, and a flat part 513 are formed in order from the bent part 52 on each linear part 51 of the connecting pin 5A. An abutting portion 516A that protrudes toward the other linear portion 51 is formed substantially at the center of the portion 511.
Of these, before the connection pin 5A is displaced, that is, before the urging force is applied to the protruding portion 511, the fulcrum portions 514A and 515A are in contact with each other, contrary to the case of the connection pin 5. The contact portions 516A of the protrusions 511 are separated from each other, and a gap is formed between the contact portions 516A.

Next, the displacement of the connecting pin 5A when inserted into the through holes 411 and 421 of the piece member 4 will be described. In the following description, the case where the connecting pin 5A is inserted from the bent portion 52 side will be described, but the same applies to the case where the connecting pin 5A is inserted from the end edge portion 53 side.
When the connecting pin 5 </ b> A is inserted into the through hole 421 from the bent part 52 side, the inclination of the protruding part 511 on the bent part 52 side is brought into contact with the opening part of the through hole 421. Here, since the fulcrum portions 514A of the connecting pin 5A are in contact with each other, when the maximum pushing force is applied to the connecting pin 5A, the contact portions 516A formed on the protruding portions 511 are close to each other. As a result of the displacement, the end of the protruding portion 511 on the distal side in the insertion direction is accommodated in the through hole 421. Thereafter, the pushing force required for inserting the connecting pin 5A decreases within a predetermined range until the vicinity of the contact portion 516A is accommodated in the through hole 421. Since this range is determined according to the distance between the contact portions 516A, it can be appropriately set by adjusting the distance.

After the vicinity of the contact portion 516A is accommodated in the through hole 421, a gap is not formed between the fulcrum portions 515A, and the displacement of the protruding portion 511 is difficult to occur. Therefore, the pushing force necessary for inserting the connecting pin 5A Will increase. Then, when the vicinity of the end portion on the proximal side in the insertion direction of the protruding portion 511 is accommodated in the through hole 421, the maximum pushing force is required again.
Thereafter, when the maximum pushing force continues to be applied, the end of the protruding portion 511 on the proximal side in the insertion direction passes through the through hole 421, and the entire protruding portion 511 is accommodated in the through hole 411. Since the portion 511 is not pressed against the inner wall of the through hole 411, the pushing force required for inserting the connecting pin 5A is minimized.

  Thus, based on the change of pushing force required for insertion of the connecting pin 5A into the through holes 411 and 421, the positions of the protrusions 511 at the through holes 411 and 421 can be grasped, and the protrusions 511 pass through. It can be ascertained whether or not it is housed in the hole 411, that is, whether or not the connecting pin 5 </ b> A is disposed at an appropriate position of the through holes 411 and 421. In the state where the entire protrusion 511 is housed in the through hole 411, the contact portion 516A of the protrusion 511 returns to the separated state before displacement.

  On the other hand, from the state in which the entire protruding portion 511 is housed in the through hole 411, that is, from the state in which the connecting pin 5A is appropriately disposed in the through holes 411 and 421, the connecting pin 5 A is inserted into the through hole 421 on the distal side in the insertion direction. When the protrusion 511 is inserted and the connection pin 5A is to be removed from the through holes 411 and 421, the end of the protrusion comes into contact with the end of the through hole 421 having a small cross-sectional dimension as described above. At this time, since the fulcrum portions 514A and 515A are in contact with each other, as described above, when the connection pin 5A is moved, the maximum pushing force (pulling force) is required at the beginning of the movement.

According to the band 3A of the second embodiment as described above, in addition to the same effects as the effects (1) to (6) shown in the first embodiment, the following effects can be obtained.
(9) When the connecting pin 5A is inserted into the through holes 411 and 421, the fulcrum portions 514A and 515A are in contact with each other, so that the end of the protruding portion 511 on the distal side in the insertion direction is accommodated in the through hole 421. Needs maximum pushing force at the time. Further, the pushing force decreases within a predetermined range until the vicinity of the contact portion 516A is stored in the through hole 421, and increases again after the vicinity of the contact portion 516A is stored. When the end on the proximal side in the insertion direction is accommodated in the through hole 421, the maximum is again reached. If this maximum pushing force continues to act on the connecting pin 5A, the end of the protruding portion 511 on the proximal side in the insertion direction passes through the through hole 421, and the end on the proximal side in the insertion direction passes through the through hole. When the entire protruding portion 511 is accommodated in the through hole 411, the pushing force is minimized.
According to this, the position of the connecting pin 5A in the through holes 411 and 421 can be grasped by the magnitude of the pushing force applied to the connecting pin 5A, and the connecting pin 5A can be connected to the through holes 411 and 421. It can be easily placed at an appropriate position. Therefore, the function of the connecting pin 5A can be sufficiently exhibited, and the piece members 4 can be reliably connected to each other.

  (10) When the connecting pin 5A is taken out from the piece member 4, the maximum pulling force is required at the first stage of taking out, so that the dropping of the connecting pin 5A from the piece member 4 is further suppressed. Accordingly, it is possible to further suppress the problem that the connecting pin 5A protrudes from the piece member 4.

[3. Third Embodiment]
Next, a band 3B according to a third embodiment of the present invention will be described.
The band 3B according to the third embodiment includes the same piece member 4 as the band 3 shown in the first embodiment, but the shape of the connection pin 5B for connecting the piece member 4 is the above-described connection pin 5. , 5A. In the following description, parts that are the same as or substantially the same as those already described are assigned the same reference numerals and description thereof is omitted.

FIG. 6 is a cross-sectional view of the band 3 </ b> B showing a state in which the connecting pin 5 </ b> B is inserted into the through holes 411 and 421 of the piece member 4.
As shown in FIG. 6, the connecting pin 5 </ b> B is inserted into a through hole 421 formed in the concave portion 42 of the piece member 4 and a through hole 411 formed in the convex portion 41 to connect two adjacent piece members 4. . This connecting pin 5B has the same configuration as the above-described connecting pin 5A, that is, includes a pair of linear portions 51, a bent portion 52, and an end edge portion 53. However, the connecting pin 5B has a protrusion 511A formed on the linear portion 51. The shape is different from the connecting pin 5A.

More specifically, a flat part 512, a fulcrum part 514A, a protruding part 511A, a fulcrum part 515A, and a flat part 513 are formed in order from the bent part 52 on each linear part 51 of the connecting pin 5B. An abutting portion 516A that protrudes toward the other linear portion 51 is formed substantially at the center of the portion 511.
Among these, before the displacement of the connecting pin 5A, like the connecting pin 5A, the fulcrum portions 514A and 515A are in contact with each other, and the contact portions 516A of the protruding portions 511 are separated from each other. .

  The protruding portion 511A has a gently curved shape from each fulcrum portion 514A, 515A to the front end portion in the protruding direction of the protruding portion 511A. Specifically, the protruding portion 511A is formed in a substantially arc shape having a center on the linear portion 51 side opposite to the linear portion on which the protruding portion 511A is formed.

According to the band 3B of the third embodiment as described above, the effects (1) to (4) and (6) shown in the first embodiment and the effects (9) and (10) shown in the second embodiment. In addition, the following effects can be obtained.
(11) The protruding portion 511A of the connecting pin 5B is curved in a substantially arc shape, and a gap is formed between the contact portions 516A. According to this, when the connecting pin 5B is inserted into the through hole 421 and when the connecting pin 5B is taken out from the through holes 411 and 421, the curved portion of the protruding portion 511A is formed in the opening portion of the through hole 421. , And the protrusion 511A is displaced along the curved shape. According to this, in comparison with the case of the connecting pin 5A having the inclined portion described above, it is possible to easily cause the protrusion 511A to be displaced together with the gap formed between the contact portions 516A. Therefore, the change width of the pushing force and the change width of the pulling force can be reduced, and the insertion of the connecting pin 5B into the through holes 411 and 421 and the removal from the through holes 411 and 421 can be performed easily and smoothly. It can be carried out.
In addition, since it will resist against the said displacement force by contact | abutting contact part 516A with respect to the displacement more than predetermined, it prevents the connection pin 5B from falling off from the through-holes 411 and 421. Can do.

[4. Fourth Embodiment]
Next, a band 3C according to a fourth embodiment of the present invention will be described.
The band 3C according to the fourth embodiment includes the same piece member 4 as the band 3 shown in the first embodiment, but the shape of the connecting pin 5C for connecting the piece member 4 is the above-described connecting pin 5. Is different. In the following description, parts that are the same as or substantially the same as those already described are assigned the same reference numerals and description thereof is omitted.

FIG. 7 is a cross-sectional view of the band 3 </ b> C showing a state where the connecting pin 5 </ b> C is inserted into the through holes 411 and 421 of the piece member 4.
As shown in FIG. 7, the connecting pin 5 </ b> C is inserted into the through holes 411 and 421 formed in the two adjacent piece members 4 to connect the two piece members 4. The connecting pin 5C has the same configuration as the connecting pin 5 described above, that is, includes a pair of linear portions 51, a bent portion 52, and an end edge portion 53. Each linear portion 51 includes a bent portion 52. In order from the side, a flat portion 512, a fulcrum portion 514, a protruding portion 511, a fulcrum portion 515, and a flat portion 513 are formed, and an abutting portion 516A is formed substantially at the center of the protruding portion 511.
Among these, before the displacement of the connecting pin 5A, the fulcrum parts 514 and 515 and the contact part 516A are configured to be separated from each other.

According to the band 3C of the fourth embodiment as described above, the same effects as the effects (1) to (8) shown in the first embodiment can be obtained, and the following effects can be obtained.
(12) A gap having a predetermined interval is formed between the fulcrum portions 514 and 515 and the contact portion 516A formed in each of the pair of linear portions 51 of the connection pin 5C before the connection pin 5A is displaced. ing. The fulcrum portions 514 and 515 and the contact portion 516A can contact each other when the protruding portion 511 is displaced when the connecting pin 5C is inserted into the through holes 411 and 421.
According to this, it is possible to easily cause the displacement of the connecting pin 5A in the protruding portion 511, but against an excessive displacement, the abutting portions 516A are brought into contact with each other to resist the displacement. Therefore, compared with the case where the connection pin 5 is used, the connection pin 5A can be inserted into the through holes 411 and 421 and taken out from the through holes 411 and 421 easily and smoothly.

[5. Modification of Embodiment]
The best configuration for implementing the present invention has been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

  In each of the above embodiments, before the displacement of the connecting pins 5, 5A, 5B, 5C, the fulcrum portions 514, 515 and the contact portion 516A are separated from each other, and the fulcrum portions 514A, 515A and Although the contact portions 516 are configured to be in contact with each other, the separation / contact state of these fulcrum portions may be set as appropriate. That is, although illustration was abbreviate | omitted in each said embodiment, you may comprise the connection pin which each fulcrum part contacted all.

  In each of the above embodiments, the protrusions 511 and 511A are provided with the contact portions 516 and 516A. However, the number of the contact portions is not limited to one. That is, a plurality of contact portions may be formed on the protruding portion, and the number of the contact portions may be set as appropriate.

In each of the embodiments described above, the protrusions 511, 511A, the fulcrum portions 514, 514A, 515, 515A, and the contact portions 516, 516A are provided on the pair of linear portions 51 of the connecting pins 5, 5A, 5B, 5C, respectively. Although formed, these should just be formed in at least one linear part 51 among a pair of linear parts 51.
In addition, if the contact portion is formed in each of the pair of linear portions 51 as in each of the above embodiments, not only the symmetry about the approximate center in the axial direction of the connecting pin but also the axial direction is the center. In addition to being able to be easily inserted into the through hole, the connecting pins can be arranged in a balanced manner in the through hole.

  In each of the embodiments described above, the connecting pins 5, 5A, 5B, and 5C are formed in a substantially symmetrical structure with the approximate center in the axial direction as the center, but the present invention is not limited to this. In addition, if it is set as the connection pin which has a symmetrical structure, the said connection pin can be easily inserted in a through-hole at the time of a connection of a piece member.

In each of the above-described embodiments, the cross-sectional dimensions of the connecting pins 5, 5A, 5B, and 5C in the projecting portions 511 and 511A are smaller than the cross-sectional dimensions of the through-hole 411. You may form larger than a dimension. That is, the cross-sectional dimension of the connecting pin in the protruding portion only needs to be larger than the cross-sectional dimension of the through hole 421.
In addition, if the cross-sectional dimension of the connecting pin in the protruding portion is formed smaller than the cross-sectional dimension of the through hole 411, the connecting pin can be prevented from becoming a resistance to rotation of the piece member 4.

  In each said embodiment, although the length dimension of the axial direction of protrusion part 511,511A was set according to the length dimension of the through-hole 411, this invention is not limited to this. In addition, if the length dimension of a protrusion part is adjusted according to the length dimension of the through hole 411, the protrusion part inside a through hole 411 and by extension, rattling of a connection pin can be suppressed.

In each of the above embodiments, the cross-sectional shape of the connecting pins 5, 5A, 5B, and 5C is a semicircular shape, but may be an arbitrary shape such as a circular shape or a rectangular shape. Moreover, the cross-sectional shape of the through holes 411 and 421 is not limited to a circle, and can be set as appropriate according to the shape of the connecting pin inserted through the through hole.
In addition, although the connecting pins 5, 5A, 5B, and 5C are formed in a substantially U shape by bending a linear member, the present invention is not limited to this. For example, it may be a continuous annular connecting pin. In other words, the connecting pin has a structure having a pair of linear portions that are arranged substantially in parallel with each other at a predetermined distance and a connecting portion that connects at least one end of the pair of linear portions. Good.

  In each said embodiment, although the convex part 41 and the recessed part 42 were formed in the piece member 4, this invention is not restricted to this, Other shapes may be sufficient. That is, the shape of the piece member may be arbitrarily set in consideration of the function, the design, and the like.

  In each of the embodiments described above, the bands 3, 3A, 3B, and 3C have been described as bands used for watches, particularly watches. However, the present invention is not limited to this, and for example, used for ornaments such as bracelets and necklaces. Can do. That is, it is suitable for an arbitrary band, component, product, etc. configured by connecting a plurality of piece members. Even in such a case, since the displacement of the connecting pin is suppressed, it is inserted into the through hole, so that it is stable for a long time even if the connecting pin is repeatedly inserted and removed for the purpose of length adjustment, piece member replacement, etc. The connected force can be maintained.

  INDUSTRIAL APPLICABILITY The present invention can be used as a connection tool for connecting pieces of jewelry such as a bracelet and a necklace, as well as a connection tool for connecting a piece of a wristwatch band.

The top view which shows the timepiece which concerns on 1st Embodiment of this invention. The outline perspective view showing the composition of the band in the embodiment. The side view which shows the connection pin in the said embodiment. Sectional drawing of the band which shows the state which inserted the connection pin in the said embodiment in the through-hole. Sectional drawing of the band which shows the state which inserted the connection pin which concerns on 2nd Embodiment of this invention in the through-hole. Sectional drawing of the band which shows the state which inserted the connection pin which concerns on 3rd Embodiment of this invention in the through-hole. Sectional drawing of the band which shows the state which inserted the connection pin which concerns on 4th Embodiment of this invention in the through-hole.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Timepiece, 2 ... Timepiece main body, 3, 3A, 3B, 3C ... Band, 4 ... Piece member, 5, 5A, 5B, 5C ... Connection pin (connection tool), 411 ... Through-hole (inner circumference is formed large , Through holes (through holes with a small inner circumference), 51... Linear portions, 52 .. bent portions (connecting portions), 53... Edge portions (connecting portions), 511 and 511A. ... projecting part, 516, 516A ... contact part, 514, 515, 514A, 515A ... fulcrum part.

Claims (8)

A connecting tool that is inserted through through holes formed in two adjacent piece members and connects the two piece members,
A pair of opposing linear portions and a connecting portion that connects between the ends of the pair of linear portions;
At least one of the pair of linear portions is formed with a protruding portion protruding in a direction away from the other linear portion,
The protruding portion is formed with a contact portion that protrudes in a direction approaching the linear portion on the opposite side to the linear portion on which the protruding portion is formed and is capable of contacting the opposite linear portion. A connecting tool characterized by that. The connector according to claim 1,
At both ends of the projecting portion, a fulcrum portion projecting in a direction approaching the linear portion opposite to the linear portion where the projecting portion is formed,
The fulcrum part is separated from the opposite linear part when the protruding part is not urged, and abutted against the opposite linear part when the protruding part is urged,
The connecting portion, wherein the contact portion is in contact with the opposite linear portion. The connector according to claim 1,
At both ends of the protruding portion, a fulcrum portion that is in contact with the linear portion opposite to the linear portion where the protruding portion is formed,
The abutting portion is separated from the opposite linear portion when the projecting portion is not urged, and is brought into contact with the opposite linear portion when the projecting portion is urged. Connecting tool. In the connector in any one of Claims 1-3,
The connector has a substantially symmetric structure with the approximate center in the axial direction of the connector as a center. 5. A plurality of piece members, and a connecting tool according to claim 1, which is inserted into through holes formed in each of the adjacent piece members and connects the adjacent piece members. A band
Of the through holes through which the coupler is inserted, the inner circumference of the through hole formed in one piece member is formed larger than the inner circumference of the through hole formed in the other piece member,
The protruding portion of the connector is disposed at a position corresponding to the large through hole. The band according to claim 5,
The cross-sectional dimension of the connector in the projecting portion is larger than the cross-sectional dimension of the through hole formed in the other piece member, and smaller than the cross-sectional dimension of the through hole formed in the one piece member. Band to play. In the band according to claim 5 or 6,
The length dimension of the through hole formed in the one piece member is larger than the length dimension of the through hole formed in the other piece member,
The band, wherein the protruding portion has a length dimension corresponding to a length dimension of a through hole formed in the one piece member.   A timepiece, wherein the band according to any one of claims 5 to 7 is attached to a timepiece main body for displaying time.

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