JP7286064B2 - band and watch - Google Patents

Description

The present invention relates to a band used for a wristwatch, a bag, a bag, etc., and a watch equipped with the same.

For example, in a wristwatch band, as described in Patent Document 1, band pieces each having a convex portion provided at one end and a concave portion having a size corresponding to the convex portion provided at the other end are attached to each other. A structure is known in which, when connecting, a convex portion of a band piece is arranged in a concave portion of an adjacent band piece, and the convex portion and the concave portion are connected by a metal connecting pin.

JP 2017-80605 A

In this type of band, the elastic material is placed between both side surfaces of the convex portion and the corresponding side surfaces of the concave portion while the convex portion of the band piece is arranged in the concave portion of the adjacent band piece. and the rotation angle of the band pieces connected by the connecting pin is held at an arbitrary angle by the elastic force of the elastic member.

In such a wristwatch band, when the band piece is made of a brittle material such as sapphire, glass, or ceramic, the elastic material prevents the band piece from being damaged due to contact between the convex portion of the band piece and the concave portion of another band piece. Even if possible, the convex part of the band piece and the concave part of the other band piece are in contact with the metal connecting pin that connects them. There is a problem that the concave portion of the band piece is easily damaged.

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a band and a timepiece equipped with the same that can prevent the band piece from being damaged by an impact even if the band piece is made of a brittle material.

The present invention comprises a band piece provided with a convex portion, another member provided with a concave portion , a first connecting hole provided in the convex portion of the band piece, and the concave portion of the other member. and a buffer cylinder inserted into a second connecting hole provided in the band and fixing the convex portion of the band piece and the concave portion of the other member in a non-contact state. is.

According to this invention, even if the band piece is made of a brittle material, it is possible to prevent the band piece from being damaged by an impact.

1 is an enlarged front view showing a first embodiment in which the present invention is applied to a wristwatch; FIG. 2 is an enlarged side view of the wristwatch shown in FIG. 1; FIG. FIG. 2 shows a main part of the band shown in FIG. 1, where (a) is an enlarged front view thereof and (b) is an enlarged side view thereof; FIG. 4 is an enlarged cross-sectional view of the band shown in FIG. 3(a) taken along the line AA. FIG. 4 is an enlarged front view showing an exploded main part of the band shown in FIG. 3(a); FIG. 4 is an enlarged cross-sectional view of the band shown in FIG. 3(a) taken along line BB. FIG. 2 is an enlarged cross-sectional view of the band attaching portion of the wristwatch shown in FIG. 1 taken along line CC. 2 is an exploded perspective view showing a state in which a band is attached to the band attachment portion of the wristwatch shown in FIG. 1; FIG. FIG. 5 is an enlarged cross-sectional view of a main part showing a modification of the band shown in FIG. 4; FIG. 10 is an enlarged front view showing a main portion of a band in a second embodiment in which the present invention is applied to a wristwatch; 11 is an enlarged cross-sectional view of the band shown in FIG. 10 taken along line DD. FIG. FIG. 12 is an enlarged perspective view showing a cushioning member of the band shown in FIG. 11;

(First embodiment)
A first embodiment in which the present invention is applied to a wristwatch will be described below with reference to FIGS. 1 to 8. FIG.
This wristwatch comprises a wristwatch case 1 and a band 2, as shown in FIGS. As shown in FIGS. 3 to 5, the band 2 has a plurality of band pieces 3, which are sequentially connected by a pair of shock absorbing cylinders 4 and a connecting pin 5 as a connecting member. ing.

Each of the plurality of band pieces 3 is made of a hard and brittle material such as sapphire, glass, ceramic, etc., as shown in FIGS. The band piece 3 has a protrusion 6 at one end and a recess 7 having a size substantially corresponding to the protrusion 6 at the other end. The convex portion 6 is provided at an intermediate portion of one end portion of the band piece 3 .

As shown in FIGS. 3 to 5, the length of the convex portion 6 in the width direction orthogonal to the longitudinal direction of the band 2, which is the connecting direction of the band piece 3, is equal to the width direction orthogonal to the connecting direction of the band piece 3. It is formed with a length of about half of the length of the The projecting length of the projection 6 in the connecting direction of the band piece 3 is approximately half the length of the band piece 3 in the connecting direction.

The concave portion 7 of the band piece 3 is provided in the intermediate portion of the other end portion of the band piece 3 located on the opposite side of the convex portion 6, as shown in FIGS. The width of the concave portion 7 perpendicular to the longitudinal direction of the band 2, which is the connecting direction of the band piece 3, is slightly longer than the length of the convex portion 6 in the width direction perpendicular to the connecting direction of the band piece 3. It is In addition, the notch length of the concave portion 7 in the connecting direction of the band piece 3 is slightly longer than the projection length of the convex portion 6 in the connecting direction of the band piece 3 .

3 to 5, the band piece 3 faces both side surfaces of the convex portion 6 when the convex portion 6 is arranged in the concave portion 7 of the adjacent band piece 3. A slight gap is provided between both side surfaces in the recess 7 and between the tip surface of the protrusion 6 and the corresponding inner end surface in the recess 7 .

In this case, as shown in FIG. 4, the convex portion 6 is provided with a first piece connecting hole 8 penetrating in the width direction perpendicular to the longitudinal direction of the band 2 which is the connecting direction of the band piece 3 . Further, second piece connecting holes 9 are formed through both side portions 7a of the concave portion 7 in the width direction orthogonal to the connecting direction of the band piece 3. As shown in FIG.

As shown in FIG. 4, the first piece connecting hole 8 of the convex portion 6 and the second piece connecting hole 9 of both side portions 7a of the concave portion 7 are connected to the other band piece 3 to which the convex portion 6 of the band piece 3 is adjacent. They are provided so as to correspond on the same axis when arranged in the recess 7 . Further, the inner diameters of the first piece connecting hole 8 of the convex portion 6 and the second piece connecting hole 9 of the side portions 7a of the concave portion 7 are different from each other. That is, the inner diameter of the first piece connecting hole 8 of the convex portion 6 is formed to be smaller than the inner diameter of the second piece connecting hole 9 of the side portions 7 a of the concave portion 7 .

On the other hand, as shown in FIGS. 4 and 5, the pair of shock absorbing cylinders 4 are formed in a tubular shape from elastic soft synthetic resin such as silicone rubber. These pair of buffer cylinders 4 are arranged in the first and second piece connecting holes 8 and 9 on both side portions 7a of the concave portion 7 of the band piece 3, respectively. That is, the buffer cylinder 4 has a small-diameter cylindrical portion 4a inserted into the first piece connecting hole 8 of the convex portion 6, a large-diameter cylindrical portion 4b inserted into the second piece connecting holes 9 of both side portions 7a of the concave portion 7, and a stepped portion 4c provided at the boundary between the small-diameter tubular portion 4a and the large-diameter tubular portion 4b.

In this case, as shown in FIG. 4, the small-diameter cylindrical portion 4a has an axial length slightly shorter than the inner diameter of the shock-absorbing cylinder 4, and has both side surfaces of the convex portion 6 and both sides of the concave portion 7 opposite thereto. It is formed sufficiently longer than the gap between the surfaces. The large-diameter cylindrical portion 4b is formed so that its axial length is longer than the axial length of the second piece connecting holes 9 provided in both side portions 7a of the concave portion 7 of the band piece 3. As shown in FIG.

As a result, as shown in FIG. 4, when the large-diameter tubular portion 4b is inserted into the second piece connecting holes 9 of the both side portions 7a of the recess 7, the inner end portion of the large-diameter tubular portion 4b can be pulled out. protrudes into the concave portion 7 to insert the small-diameter cylindrical portion 4a into the first piece connecting hole 8 of the convex portion 6 of the other band piece 3, and the stepped portion 4c is attached to the side surface of the convex portion 6 of the other band piece 3. In this state, the outer end of the large-diameter cylindrical portion 4b is configured to protrude outward from both side portions 7a of the recess 7. As shown in FIG.

For this reason, as shown in FIG. 4, the buffer cylinder 4 has the inner end of the large-diameter cylindrical portion 4b protruding into the recess 7, pushing the stepped portion 4c against the side surface of the convex portion 6 of the other band piece 3. When they are brought into contact with each other, both sides of the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 are pressed together with a gap provided between the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 . It is configured to temporarily fix the portion 7a.

As shown in FIGS. 4 and 5, the connecting pin 5 is a rod-shaped member made of metal, and is inserted into the pair of shock absorbing cylinders 4 so that the convex portion 6 of the band piece 3 and the convex portion 6 are arranged. It is configured to be rotatably connected to both side portions 7a of the concave portion 7 of the other band piece 3. As shown in FIG. That is, the connecting pin 5 has an outer diameter approximately equal to the inner diameter of the buffer cylinder 4, and a length in the axial direction slightly longer than the length between the outer end faces of the recess 7 of the band piece 3 on both sides 7a. formed.

4 and 5, the connecting pin 5 is inserted into the first piece connecting hole 8 of the band piece 3 and the second piece connecting hole 9 of the other band piece 3. When it is inserted into the pair of shock absorbing cylinders 4 in this state, both ends of the connecting pin 5 are arranged in the both ends of the pair of shock absorbing cylinders 4, and the convex portion 6 of the band piece 3 and the other band piece are connected to each other. 3 so as to rotatably connect the convex portion 6 of the band piece 3 and the side portions 7a of the concave portion 7 of the adjacent band piece 3 without coming into contact with the side portions 7a of the concave portion 7 of the band piece 3. It is configured.

5 and 6, a pair of band protection members 10 are attached to both sides of the band piece 3 by screw members 11. As shown in FIGS. In this case, a mounting hole 14 into which the screw member 11 is inserted is provided in the band piece 3 so as to penetrate in the width direction perpendicular to the connecting direction of the band piece 3 while being positioned between the convex portion 6 and the concave portion 7 . It is The pair of band protection members 10 are made of a light and highly rigid material such as carbon resin, and are formed in the same shape as the end faces on both sides of the band piece 3 .

As shown in FIG. 6, these pair of band protection members 10 are provided with counterbore holes 10a corresponding to the attachment holes 14 of the band bridge 3 on the same axis. Also, as shown in FIG. 4, on the facing surfaces of the pair of band protection members 10 are locking members into which the ends of the pair of buffer cylinders 4 protruding from both side portions 7a of the recess 7 of the band piece 3 are inserted. The holes 10b are provided in a concave shape without penetrating.

The threaded member 11 has a female threaded portion 12 and a male threaded portion 13, as shown in FIG. The female screw portion 12 includes a head portion 12a, a shaft portion 12b, and a threaded hole 12c provided at the end of the shaft portion 12b. The female screw portion 12 is configured such that the shaft portion 12b is inserted into the mounting hole 14 of the band piece 3 while the head portion 12a is inserted into the countersunk hole 10a of one of the band protection members 10. ing.

As shown in FIG. 6, the male threaded portion 13 has a head portion 13a and a threaded portion 13b. The male threaded portion 13 is inserted into the mounting hole 14 of the band piece 3 with the head portion 13a inserted into the counterbore hole 10a of the other band protection member 10, and the female threaded portion 12 is inserted into the threaded portion 13b. is configured to be screwed into a threaded hole 12c provided at the end of the shaft portion 12b.

In this case, the mounting hole 14 of the band piece 3 has an inner diameter larger than the outer diameter of the shaft portion 12b of the female screw portion 12, as shown in FIG. The counterbore 10a of the band protection member 10 has a large-diameter portion where the head portion 12a of the female thread portion 12 and the head portion 13a of the male thread portion 13 are arranged, and a small diameter portion into which the threaded portion 13b is inserted. The small-diameter portion of the counterbore 10a is formed to have an inner diameter smaller than the inner diameter of the mounting hole 14 of the band piece 3. As shown in FIG.

As a result, as shown in FIG. 6, the shaft portion 12b of the female threaded portion 12 of the threaded member 11 is inserted into the mounting hole 14 of the band piece 3 through the counterbore hole 10a of the band protection member 10 on one side, and the female threaded portion 12 The shaft portion 12b of the female screw portion 12 does not come into contact with the mounting hole 14 of the band piece 3 when the head portion 12a of the band protection member 10 is placed in the counterbore hole 10a of the band protection member 10. As shown in FIG.

As shown in FIG. 6, the threaded member 11 has a head portion 12a of the female threaded portion 12 disposed in the counterbored hole 10a of the band protection member 10, and the threaded portion 13b of the male threaded portion 13 When the band protection member 10 is inserted through the countersunk hole 10a of the band protection member 10 into the mounting hole 14 of the band piece 3 and screwed into the threaded hole 12c of the shaft portion 12b of the female threaded portion 12, the externally threaded portion is inserted into the mounting hole 14 of the band piece 3. 13 is configured so that the threaded portion 13b does not come into contact with them.

As a result, as shown in FIG. 6, the threaded portion 13b of the male threaded portion 13 of the threaded member 11 is screwed into the threaded hole 12c of the shaft portion 12b of the female threaded portion 12, thereby tightening the female threaded portion 12 and the male threaded portion 13. Then, the head 12a of the female threaded portion 12 is arranged in the countersunk hole 10a of one of the band protection members 10, and the head 13a of the male threaded portion 13 is arranged in the countersunk hole 10a of the other band protection member 10, forming a pair. The band protection member 10 is pressed against both side surfaces of the band piece 3.

In this case, the pair of band protection members 10, as shown in FIGS. 4 and 6, are a pair of shock absorbing members protruding from both sides 7a of the recess 7 of the band piece 3 when arranged on both sides of the band piece 3. By inserting the ends of the tube 4 into the locking holes 10b, the pair of band protection members 10 are prevented from rotating around the screw member 11. As shown in FIG. Further, the threaded member 11 is configured so as not to come into contact with the band piece 3 when the shaft portion 12b of the female threaded portion 12 is inserted into the mounting hole 14 of the band piece 3 .

On the other hand, as shown in FIGS. 1 and 2, the band 2 is attached to band attachment portions 15 provided on the 12 o'clock side and the 6 o'clock side of the wristwatch case 1, respectively. In this case, switch units 16 are provided on four sides of the wristwatch case 1, 2 o'clock side, 4 o'clock side, 8 o'clock side, and 10 o'clock side.

As shown in FIG. 8, the wristwatch case 1 includes a case body 17 made of a hard and brittle material such as sapphire, glass, ceramic, etc., and 1 o'clock side, 5 o'clock side, 7 o'clock side, and 11 o'clock side of the case body 17. A plurality of first case protection members 18 arranged on the upper surface and side surfaces located at four locations of the , and a pair of second case protection members 19 arranged on each side of the case body 17 on the 3 o'clock side and the 9 o'clock side. and have.

A watch glass 20 is attached to the upper opening of the case body 17, as shown in FIGS. A back cover 21 is attached to the lower portion of the case body 17 . Further, each band mounting portion 15 of the case body 17 is provided with a concave portion 22 in which the convex portion 6 of the band piece 3 positioned at the end portion of the band 2 is arranged. As shown in FIG. 7, both side portions 22a of the recess 22 have case connecting holes 23 corresponding to the first piece connecting holes 8 of the protrusions 6 of the band piece 3 arranged in the recess 22 on the same axis. is provided.

As shown in FIG. 7, the case connecting hole 23 is formed to have an inner diameter larger than the inner diameter of the first piece connecting hole 8 of the projection 6 of the band piece 3 . As a result, the case connecting hole 23 of the band attaching portion 15 is configured so that the large-diameter cylindrical portion 4b of the shock absorbing cylinder 4 is inserted thereinto. In this case as well, the large-diameter cylindrical portion 4b of the buffer tube 4 has an axial length longer than the axial length of the case connecting holes 23 provided on both sides 22a of the recess 22 of the band mounting portion 15. formed.

That is, as shown in FIG. 7, when the large-diameter tubular portion 4b is inserted into the case connecting holes 23 of the side portions 22a of the concave portion 22 of the band mounting portion 15, the shock-absorbing sleeve 4 is pushed inside the large-diameter tubular portion 4b. The end protrudes into the concave portion 22 to insert the small-diameter cylindrical portion 4a into the first piece connecting hole 8 of the convex portion 6 of the band piece 3, and the stepped portion 4c is pressed against the side surface of the convex portion 6 of the band piece 3. In this state, the outer ends of the large-diameter cylindrical portion 4b are configured to protrude outward from both side portions 22a of the recessed portion 22 of the band mounting portion 15. As shown in FIG.

As a result, as shown in FIG. 7, the buffer cylinder 4 has the inner end of the large-diameter cylindrical portion 4b projected into the concave portion 22, and the stepped portion 4c is pressed against the side surface of the convex portion 6 of the band piece 3. At this time, with a gap provided between the convex portion 6 of the band piece 3 and the concave portion 22 of the band mounting portion 15, the convex portion 6 of the band piece 3 and both side portions 22a of the concave portion 22 of the band mounting portion 15 are engaged. It is configured to be temporarily fixed.

As shown in FIGS. 7 and 8, the buffer cylinder 4 rotates the projection 6 of the band piece 3 and both sides 22a of the recess 22 of the band mounting portion 15 by inserting the connecting pin 5. It is configured to connect in a possible state. That is, like the band piece 3 , the connecting pin 5 has an outer diameter approximately equal to the inner diameter of the buffer cylinder 4 , and has an axial length that is the same as the outer end surface of both side portions 22 a of the concave portion 22 of the band mounting portion 15 . It is formed slightly longer than the length.

7 and 8, the connecting pin 5 is in a state in which the pair of buffer cylinders 4 are inserted into the case connecting hole 23 of the band mounting portion 15 and the first piece connecting hole 8 of the band piece 3. Both end portions of the connecting pin 5 are arranged in both end portions of the pair of shock absorbing cylinders 4 when inserted into the pair of shock absorbing cylinders 4 .

As shown in FIGS. 7 and 8, when both ends of the connecting pin 5 are arranged in both ends of the pair of shock absorbing cylinders 4, both side portions 22a of the concave portion 22 of the band attachment portion 15 and the band The protrusions 6 of the band piece 3 are rotatably connected to both side portions 22 a of the recess 22 of the band mounting portion 15 without coming into contact with the protrusions 6 of the band 3 .

On the other hand, as shown in FIGS. 1, 2 and 8, the first and second case protection members 18 and 19 are made of a light and highly rigid material such as carbon resin, like the band protection member 10. . The pair of second case protection members 19 extends from one side of the band mounting portion 15 located on the 12 o'clock side of the case body 17 to one side of the band mounting portion 15 located on the 6 o'clock side of the case body 17. , are arranged on both the 3 o'clock side and the 9 o'clock side of the case body 17, respectively.

In this case, as shown in FIG. 8, the second case protection member 19 located on the 3 o'clock side is attached to the 3 o'clock side of the case body 17 by screws 24 (see FIG. 2) located on the 3 o'clock side of the case body 17. attached to the Through holes (not shown) are provided for the switch portions 16 at the 2 o'clock side and the 4 o'clock side of the 3 o'clock side second case protection member 19 .

Similarly, the second case protection member 19 located on the 9 o'clock side is attached to the 9 o'clock side of the case body 17 by screws 24 (see FIG. 2) located on the 9 o'clock side of the case body 17, as shown in FIG. attached to the Through holes (not shown) are provided for the switch portions 16 at the 8 o'clock side and the 10 o'clock side of the second case protection member 19 on the 9 o'clock side.

As shown in FIGS. 7 and 8, the pair of second case protection members 19 has locking holes 25 into which the ends of the pair of buffer cylinders 4 protruding from both sides of the band mounting portion 15 are inserted. are provided respectively. The ends of the large-diameter tubular portion 4b of the shock-absorbing sleeve 4 are inserted into these locking holes 25, so that the second case protection member 19 is attached to the side portion of the band attachment portion 15 with screws 24. , the second case protection member 19 is configured so as not to rotate around the screw 24 .

Next, the action of the band 2 in such a wristwatch will be described.
When assembling this band 2, first, the convex portion 6 of the band piece 3 is placed in the concave portion 7 of the other band piece 3, and the first piece connecting hole 8 of the convex portion 6 and the side portions 7a of the concave portion 7 are each connected. It corresponds to the second piece connecting hole 9 on the same axis. In this state, the buffer cylinders 4 are inserted into the respective second piece connecting holes 9 of the side portions 7a of the recess 7. As shown in FIG.

At this time, the inner end of the large-diameter cylindrical portion 4b of the buffer cylinder 4 is protruded into the recess 7 from the second piece connecting holes 9 of both side portions 7a of the recess 7. As shown in FIG. Then, the small-diameter cylindrical portion 4a of the buffer cylinder 4 is inserted into the first piece connecting hole 8 of the projection 6, and the stepped portion 4c of the buffer cylinder 4 is pressed against the side surface of the projection 6. As shown in FIG. At this time, the large-diameter cylindrical portion 4b of the shock-absorbing cylinder 4 is fitted into the second piece connecting hole 9 of both side portions 7a of the recess 7, and the outer end portion of the large-diameter cylindrical portion 4b extends from both side portions 7a of the recess 7 to the outside. protrude to

In this state, a slight gap is provided by the stepped portion 4c of the shock absorbing cylinder 4 between both side surfaces of the protrusion 6 and the opposite side surfaces in the recess 7, and the tip end surface of the protrusion 6 and this gap are provided. A slight gap is also provided between the inner end surface in the recess 7 corresponding to the . Therefore, the protrusion 6 and the side portions 7a of the recess 7 are temporarily fixed by the buffer cylinder 4 without the protrusion 6 and the recess 7 coming into contact with each other.

Then, the connecting pin 5 is inserted into the pair of shock absorbing cylinders 4, and both end portions of the connecting pin 5 are arranged within the end portions of the large diameter cylindrical portions 4b of the pair of shock absorbing cylinders 4. As shown in FIG. In this state, the metal connecting pin 5 is arranged without contacting the convex portion 6 and the side portions 7a of the concave portion 7. As shown in FIG. As a result, the convex portion 6 of the band piece 3 and the side portions 7a of the concave portion 7 of the adjacent band piece 3 are rotatably connected by the connecting pin 5, whereby the band piece 3 and the band piece 3 are connected together. Other adjacent band pieces 3 are connected. In this manner, a plurality of band pieces 3 are sequentially connected.

A pair of band protection members 10 are arranged on both sides of each of the plurality of band pieces 3 and attached by screw members 11 . At this time, the outer ends of the buffer cylinders 4 protruding from both side portions 7a of the recess 7 are inserted into the locking holes 10b provided on the facing surface of the band protection member 10, and the counterbore holes 10a of the band protection member 10 are inserted. It corresponds to the mounting hole 14 of the band piece 3 on the same axis.

In this state, the shaft portion 12b of the female screw portion 12 of the threaded member 11 is inserted into the mounting hole 14 of the band piece 3 through the countersunk hole 10a of one of the band protection members 10. As shown in FIG. Then, the threaded portion 13b of the male threaded portion 13 is inserted into the mounting hole 14 of the band piece 3 through the countersunk hole 10a of the other band protection member 10, and the threaded hole provided at the end of the shaft portion 12b of the female threaded portion 12 is inserted. 12c, and in this state, the female threaded portion 12 and the male threaded portion 13 are tightened.

Then, the head portion 12a of the female threaded portion 12 and the head portion 13a of the male threaded portion 13 are arranged in the counterbore holes 10a of the pair of band protection members 10, and the pair of band protection members 10 are positioned on both sides of the band bridge 3. pressed and fixed. In this state, since the outer end of the shock absorbing cylinder 4 is inserted into the locking hole 10b of the band protection member 10, the band protection member 10 does not rotate about the screw member 11. As shown in FIG. Thereby, the band 2 is assembled.

When attaching the band 2 to the wristwatch case 1 , first, the protrusion 6 of the band piece 3 located at one end of the band 2 is placed in the concave portion 22 of the band attachment portion 15 of the case body 17 . At this time, the first piece connecting hole 8 provided in the convex portion 6 of the band piece 3 and the case connecting holes 23 provided in both side portions 22a of the concave portion 22 of the band mounting portion 15 are aligned on the same axis.

In this state, the buffer cylinders 4 are inserted into the respective case connecting holes 23 provided on both side portions 22a of the concave portion 22 of the band attaching portion 15. As shown in FIG. At this time, the inner end of the large-diameter cylindrical portion 4b of the buffer cylinder 4 projects into the concave portion 22 of the band attaching portion 15 from the case connecting holes 23 in both side portions 22a of the concave portion 22 of the band attaching portion 15. As shown in FIG.

Then, the small-diameter cylindrical portion 4a of the shock absorbing cylinder 4 is inserted into the first piece connecting hole 8 of the projection 6 of the band piece 3, and the stepped portion 4c of the shock absorbing cylinder 4 is pressed against the side surface of the projection 6. As shown in FIG. At this time, the large-diameter cylindrical portion 4b of the shock-absorbing sleeve 4 is fitted into the case connecting holes 23 of both side portions 22a of the concave portion 22 of the band mounting portion 15, and the outer ends of the large-diameter cylindrical portion 4b extend to both side portions of the concave portion 22. It protrudes outside from 22a.

In this state, both side surfaces of the convex portion 6 of the band piece 3 and opposite side surfaces of the concave portion 22 of the band mounting portion 15 are arranged in a non-contact state with a gap therebetween by the stepped portion 4c of the buffer cylinder 4. In addition, a slight gap is provided between the tip surface of the projection 6 and the corresponding inner end surface of the recess 22 . Therefore, the convex portion 6 of the band piece 3 and the side portions 22a of the concave portion 22 of the band mounting portion 15 are temporarily fixed by the buffer cylinder 4 without the convex portion 6 and the concave portion 22 coming into contact with each other.

In this state, the connecting pin 5 is inserted into the pair of shock absorbing cylinders 4 so that both end portions of the connecting pin 5 are arranged within the end portions of the large diameter cylindrical portions 4b of the pair of shock absorbing cylinders 4. As shown in FIG. In this state, the connecting pin 5 made of metal is arranged without contacting the convex portion 6 of the band piece 3 and the side portions 22a of the concave portion 22 of the band mounting portion 15. As shown in FIG. As a result, the convex portion 6 of the band piece 3 and the side portions 22a of the concave portion 22 of the band mounting portion 15 are rotatably connected by the connecting pin 5, so that the band piece 3 is attached to the band mounting portion 15 of the case main body 17. Connected in a rotatable state.

A pair of second case protection members 19 are arranged on each side of the case main body 17 on the 3 o'clock side and the 9 o'clock side and attached with screws 24 . At this time, the ends of the pair of buffer cylinders 4 protruding from both sides of the band mounting portion 15 are inserted into the locking holes 25 provided in the pair of second case protection members 19, respectively. Case protection members 19 are arranged on both sides of the band attachment portion 15 .

In this state, a pair of second case protection members 19 are attached to the case body 17 on the 3 o'clock side and the 9 o'clock side with screws 24 . At this time, the second case protection member 19 is attached to the side portion of the band attachment portion 15 with screws 24 by inserting the end portion of the buffer cylinder 4 into the locking hole 25 of the second case protection member 19 . The second case protection member 19 does not rotate around the screw 24 in this state.

In the wristwatch band 2 assembled in this way, the band piece 3 is made of a hard and brittle material such as sapphire, glass, ceramic, etc., so that it can be colored. By exposing the band piece 3 except for the band protection member 10, a product with excellent design and high commercial value can be obtained.

Moreover, in this wristwatch band 2, even if the band piece 3 is made of a hard and brittle material such as sapphire, glass, or ceramic, the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 adjacent to this can be easily separated. and are arranged in a non-contact state with a slight gap by the stepped portion 4c of the buffer cylinder 4, so that when receiving an impact such as being dropped, the convex portion 6 of the band piece 3 and the other portion adjacent thereto , and the recess 7 of the band piece 3 do not come into contact with each other. Therefore, it is possible to prevent damage to the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3 due to the impact.

In this case, the metal connecting pin 5 that connects the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3 is adjacent to the first piece connecting hole 8 of the convex portion 6 of the band piece 3. It is inserted into the buffer cylinder 4 inserted into the second piece connecting hole 9 on both side portions 7a of the concave portion 7 of the other band piece 3, and the convex portion 6 of the band piece 3 and the other band piece 3 adjacent thereto are inserted. Therefore, when the band 2 receives an impact such as being dropped, both sides of the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3 The portion 7a is not damaged by the connecting pin 5.

In addition, since the band protective member 10 made of a light and highly rigid material such as carbon resin is attached to the side of the band piece 3, even if the side of the band piece 3 receives an impact such as being dropped, it will not be damaged. Since the impact can be received by the band protection member 10, the edge of the side of the band piece 3 is not cracked or chipped, and the side of the band piece 3 is surely and well protected by the band protection member 10.例文帳に追加can do. Further, even in the longitudinal direction of the band 2, the band piece 3 and the band piece 3 do not come into contact with each other and are not damaged by the contact between the band protective member 10 and the band protective member 10.例文帳に追加

On the other hand, in the wristwatch case 1 to which the band 2 is attached, even if the case main body 17 and the band attachment portion 15 are made of a hard and brittle material such as sapphire, glass, or ceramic, the convex portion 6 of the band piece 3 and the band attachment portion are 15 is arranged in a non-contact state with a slight gap by the stepped portion 4c of the shock absorbing cylinder 4, so that the convex portion 6 of the band piece 3 and the band will not contact each other when receiving an impact such as being dropped. The concave portion 22 of the mounting portion 15 does not come into contact with each other. Therefore, it is possible to prevent damage to the convex portion 6 of the band piece 3 and the concave portion 22 of the band mounting portion 15 due to impact.

In this case, the metal connecting pin 5 that connects the convex portion 6 of the band piece 3 and the concave portion 22 of the band mounting portion 15 is located between the first piece connecting hole 8 of the convex portion 6 of the band piece 3 and the band mounting portion 15. It is inserted into the shock absorbing cylinder 4 inserted into the case connecting hole 23 of both side portions 22a of the concave portion 22, and arranged without contacting the convex portion 6 of the band piece 3 and the concave portion 22 of the band mounting portion 15. . Therefore, when the band 2 receives an impact due to a drop or the like, the protrusion 6 of the band piece 3 and the side portions 22a of the recess 22 of the band mounting portion 15 are not damaged by the connecting pin 5.例文帳に追加

In addition, since the second case protection member 19 made of a light and highly rigid material such as carbon resin is attached to the side portion of the band attachment portion 15, the side portion of the band attachment portion 15 may receive an impact due to a drop or the like. However, the impact can be received by the second case protection member 19 . Therefore, the edges of the band attachment portion 15 are not cracked or chipped, and the side portions of the band attachment portion 15 can be reliably and satisfactorily protected by the second case protection member 19 .

In this case, the case main body 17 is provided with the second case protection members 19 on the 3 o'clock side and the 9 o'clock side. It can be received by the case protection member 19 . Therefore, the side portions of the case main body 17 are not cracked or chipped, and the side portions of the case main body 17 can be reliably and satisfactorily protected by the second case protection member 19 .

Thus, according to this wristwatch band 2, a plurality of band pieces 3 made of a brittle material are provided with a projection 6 at one end and a recess 7 having a size corresponding to the projection 6 at the other end. , the first piece connecting holes 8 provided in the convex portions 6 of these band pieces 3 and the second piece connecting holes provided in both side portions 7a of the concave portions 7 of the other band pieces 3 in which the convex portions 6 are arranged. 9 to fix the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 in a non-contact state; The band piece 3 can be prevented from being damaged by impact even if the band piece 3 is made of a brittle material.

That is, in the wristwatch band 2, the protrusion 6 of the band piece 3 and the recess 7 of the other band piece 3 are arranged without coming into contact with each other due to the cushioning cylinder 4, so the band piece 3 is made of a brittle material. However, when the band piece 3 receives an impact such as being dropped, the impact reliably and satisfactorily prevents the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 from coming into contact with each other and being damaged. can be prevented.

In addition, in the wristwatch band 2, the connecting pin 5 is inserted into the shock absorbing cylinder 4 to connect the convex portion 6 of the band piece 3 and both side portions 7a of the concave portion 7 of the other band piece 3. Even if the band piece 3 is made of a brittle material, when the band piece 3 receives an impact such as being dropped, the connecting pin 5 is pushed to both sides of the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 due to the impact. Since there is no contact with the portion 7a, it is possible to reliably and satisfactorily prevent the protrusion 6 of the band piece 3 and the side portions 7a of the recess 7 of the other band piece 3 from being damaged by the connecting pin 5.

In this case, in the band 2 of this wristwatch, the inner diameter of the first link connecting hole 8 of the band link 3 is different from the inner diameter of the second link connecting hole 9 of the other band link 3, and the shock absorbing cylinder 4 has the first link A stepped portion 4 c for preventing contact between the convex portion 6 and the concave portion 7 is provided at the boundary between the connecting hole 8 and the second piece connecting hole 9 . When inserted into the connecting hole 8 and the second piece connecting holes 9 on both sides 7a of the recess 7, a small gap is reliably provided between the projection 6 and the recess 7 by the stepped portion 4c of the buffer cylinder 4. be able to.

That is, in this wristwatch band 2, the inner diameter of the first link connecting hole 8 of the band link 3 is smaller than the inner diameter of the second link connecting hole 9 of the other band link 3, and the shock absorbing cylinder 4 is connected to the first link. A small-diameter tubular portion 4a inserted into the connecting hole 8, a large-diameter tubular portion 4b inserted into the second piece connecting hole 9, and a stepped portion 4c provided at the boundary between the small-diameter tubular portion 4a and the large-diameter tubular portion 4b. , so that when the large-diameter cylindrical portion 4b of the shock-absorbing cylinder 4 is inserted into the second piece connecting hole 9 and the small-diameter cylindrical portion 4a of the shock-absorbing cylinder 4 is inserted into the first piece connecting hole 8, the shock-absorbing The stepped portion 4c of the cylinder 4 can be reliably pressed against the side portion of the convex portion 6 of the band piece 3. - 特許庁

Therefore, in the band 2 of this wristwatch, a small gap can be reliably provided between the projection 6 and the recess 7 by the stepped portion 4c of the shock absorbing cylinder 4, so that the band piece 3 can receive an impact such as dropping. When the impact is applied, the protrusion 6 of the band piece 3 and the side portions 7a of the recess 7 of the other band piece 3 do not come into contact with each other. Damage to both side portions 7a of the concave portion 7 of the band piece 3 can be reliably and satisfactorily prevented.

In addition, in the band 2 of this wristwatch, a pair of band protection members 10 are attached to both sides of the band piece 3, so that when the band piece 3 receives an impact such as a fall from the side, the impact is absorbed. Since it can be received by the pair of band protection members 10, both sides of the band piece 3 can be reliably and satisfactorily prevented from being cracked or chipped.

In this case, the pair of band protection members 10 is provided with a counterbore hole 10a into which the screw member 11 is inserted, and the female threaded portion 12 of the screw member 11 passes through one of the counterbore holes 10a. 14, and the male threaded portion 13 of the threaded member 11 is inserted into the mounting hole 14 of the band bridge 3 through the other counterbore hole 10a and screwed into the threaded hole 12c of the shaft portion 12b of the female threaded portion 12, whereby the band is The band protection members 10 can be reliably and favorably attached to both sides of the bridge 3.例文帳に追加

That is, the countersunk hole 10a of the band protection member 10 has a large diameter portion where the head portion 12a of the female thread portion 12 and the head portion 13a of the male thread portion 13 are arranged, The inner diameter of the small diameter portion is smaller than the inner diameter of the mounting hole 14 of the band piece 3, so that the shaft portion 12b of the female thread portion 12 inserted into the mounting hole 14 and the male thread The threaded portion 13b of the portion 13 can be prevented from coming into contact with the band piece 3.

Therefore, in this band 2, even if the band piece 3 is made of a brittle material, the screw member 11 does not come into contact with the band piece 3. Therefore, when the band piece 3 receives an impact such as being dropped, the band piece 3 may be damaged. Since the screw member 11 does not come into contact with the band piece 3 due to an impact, it is possible to reliably and satisfactorily prevent the band piece 3 from being damaged by the screw member 11 .

As described above, in the wristwatch band 2, the band piece 3 is not damaged by an impact, so that the band piece 3 can be made of a hard and brittle material such as sapphire, glass, ceramic, etc., and can be colored. As a result, it is possible to enhance decorativeness and color, and to provide products with high design and high commercial value.

In addition, according to this wristwatch band 2, the band piece 3 made of a brittle material having the convex portion 6 provided at one end thereof and the brittle material having the concave portion 22 in which the convex portion 6 of the band piece 3 is arranged are formed. It is inserted into the band mounting portion 15, the first piece connecting hole 8 provided in the convex portion 6 of the band piece 3, and the case connecting holes 23 provided in both side portions 22a of the recessed portion 22 of the band mounting portion 15. A buffer cylinder 4 for fixing the projection 6 of the piece 3 and the recess 22 of the band mounting portion 15 in a non-contact state, and a connecting pin inserted into the buffer cylinder 4 and connecting the band piece 3 and the band mounting portion 15. 5, even if the band piece 3 and the band mounting portion 15 are made of a brittle material, damage due to impact can be prevented.

That is, in the wristwatch band 2, the projection 6 of the band piece 3 and the recess 22 of the band mounting portion 15 are arranged without contact with each other by the cushioning cylinder 4, so that the band piece 3 and the band mounting portion 15 are fragile. Even if it is made of material, it is possible to reliably and satisfactorily prevent damage due to mutual contact between the projection 6 of the band piece 3 and the recess 22 of the band mounting portion 15 due to impact such as dropping.

In addition, in the wristwatch band 2, the connecting pin 5 is inserted into the cushioning cylinder 4 to connect the convex portion 6 of the band piece 3 and both side portions 22a of the concave portion 22 of the band mounting portion 15. Even if the bridge 3 and the band mounting portion 15 are made of a brittle material, the connecting pin 5 may come into contact with the protrusion 6 of the band bridge 3 and both side portions 22a of the recess 22 of the band mounting portion 15 due to impact such as dropping. Therefore, it is possible to reliably and satisfactorily prevent the protrusion 6 of the band piece 3 and the side portions 22a of the recess 22 of the band mounting portion 15 from being damaged by the connecting pin 5.

In this case, in the band 2 of this wristwatch, the inner diameter of the first link connecting hole 8 of the band bridge 3 and the inner diameter of the case connecting hole 23 of the band mounting portion 15 are different. and the case connecting hole 23 is provided with a stepped portion 4c for preventing contact between the convex portion 6 of the band piece 3 and the concave portion 22 of the band mounting portion 15. and the case connecting holes 23 of both side portions 22a of the concave portion 22 of the band mounting portion 15, the convex portion 6 and the concave portion 22 are separated by the stepped portion 4c of the buffer cylinder 4. A slight gap can be reliably provided between the

That is, in the wristwatch band 2 , the inner diameter of the first piece connecting hole 8 of the band piece 3 is formed smaller than the inner diameter of the case connecting hole 23 of the band mounting portion 15 , and the shock absorbing cylinder 4 is connected to the first piece connecting hole 8 . a small-diameter tubular portion 4a inserted into the case connecting hole 23, a large-diameter tubular portion 4b inserted into the case connecting hole 23, and a stepped portion 4c provided at the boundary between the small-diameter tubular portion 4a and the large-diameter tubular portion 4b. As a result, when the large-diameter cylindrical portion 4b of the shock-absorbing cylinder 4 is inserted into the case connecting hole 23 and the small-diameter cylindrical portion 4a of the shock-absorbing cylinder 4 is inserted into the first piece connecting hole 8, the stepped portion 4c of the shock-absorbing cylinder 4 is pushed. The side part of the convex part 6 of the band bridge|piece 3 can be pressed reliably.

Therefore, in the wristwatch band 2, the stepped portion 4c of the buffer cylinder 4 can reliably provide a slight gap between the convex portion 6 of the band piece 3 and the concave portion 22 of the band mounting portion 15, so that the wristwatch band 2 can be easily dropped. Since the convex portion 6 of the band piece 3 and the side portions 22a of the concave portion 22 of the band mounting portion 15 do not come into contact with each other due to impact such as 22 and both side portions 22a can be reliably and satisfactorily prevented.

In addition, in the wristwatch band 2, a pair of second case protection members 19 are attached to both sides of the band attachment portion 15, so that when the band attachment portion 15 receives an impact such as being dropped from the side, Since the impact can be received by the pair of second case protection members 19, both sides of the band mounting portion 15 can be reliably and satisfactorily prevented from being cracked or chipped.

As described above, in the wristwatch band 2, the band attaching portion 15 is not damaged by an impact. In addition, the band mounting portion 15 and the case body 17 can be colored, thereby enhancing decorativeness and color, and providing a product with high design and high commercial value. can be done.

In the above-described first embodiment, the case where the connecting pin 5 is a simple rod is described, but the present invention is not limited to this. 30 may be used. That is, the buffer cylinder 4 of the modified example shown in FIG.

The connecting screw member 30 has a female threaded portion 31 and a male threaded portion 32 as shown in FIG. The female screw portion 31 includes a head portion 31a, a shaft portion 31b, and a screw hole 31c provided at the end of the shaft portion 31b. The female threaded portion 31 is arranged such that the head portion 31a is inserted into the counterbored hole 4d of one of the shock absorbing cylinders 4, and the shaft portion 31b passes through the shock absorbing cylinder 4 and connects the convex portion 6 of the band piece 3 to the first piece. It is configured to be inserted into hole 8 .

As shown in FIG. 9, the male threaded portion 32 includes a head portion 32a and a threaded portion 32b. The male threaded portion 32 is arranged such that the head portion 32a is inserted into the counterbore hole 4d of the other shock absorbing cylinder 4, and the threaded portion 32b passes through the shock absorbing cylinder 4 to connect the convex portion 6 of the band piece 3 to the first piece. It is configured to be inserted into the hole 8 and screwed into the threaded hole 31c provided at the end of the shaft portion 31b of the female threaded portion 31 .

9, the shaft portion 31b of the female threaded portion 31 of the connecting screw member 30 extends from the counterbore hole 4d of the shock absorbing cylinder 4 to the first piece connecting hole 8 of the convex portion 6 of the band piece 3. The threaded portion 32b of the male threaded portion 32 is inserted into the first piece connecting hole 8 of the protrusion 6 of the band piece 3 through the counterbore hole 4d of the other buffer cylinder 4, and the shaft portion 31b of the female threaded portion 31 is inserted. The female threaded portion 31 and the male threaded portion 32 are configured so as not to come into contact with the band piece 3 when they are screwed into the threaded hole 31c.

Therefore, in this band 2, the threaded portion 32b of the male threaded portion 32 is screwed into the threaded hole 31c of the shaft portion 31b of the female threaded portion 31 and tightened so that the head portion 31a of the female threaded portion 31 and the head portion of the male threaded portion 32 are screwed together. Since the pair of shock absorbing cylinders 4 can be axially sandwiched between the portions 32a, the stepped portions 4c of the pair of shock absorbing cylinders 4 can be reliably and satisfactorily pressed against both side surfaces of the convex portion 6 of the band piece 3. Thus, a gap can be reliably provided between the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 adjacent thereto. Incidentally, as shown in FIG. 9, when the connecting screw member 30 is used, the connection between the convex portion 6 of the band piece 3 and the concave portion 22 of the band mounting portion 15 can be configured similarly.

In the above-described first embodiment, the stepped portion 4c of the cushioning cylinder 4 ensures a gap between the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 or the concave portion 22 of the band mounting portion 15. However, for example, a cutout portion such as a groove is provided in the recessed portion 7 of the other band piece 3 or the recessed portion 22 of the band mounting portion 15, and an O-ring or washer shape formed of an elastic material is provided there. A buffer member may be arranged, the shock absorbing cylinder 4 may be inserted, and the shock absorbing member may be arranged on the outer peripheral portion of the shock absorbing cylinder 4 .

By providing a cushioning member in addition to the stepped portion 4c of the cushioning cylinder 4, when receiving an external impact such as being dropped, the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 or the band mounting portion 15 The recesses 22 do not abut against each other, so that a gap can be provided more reliably and breakage can be prevented.

Further, the cushioning member may be arranged by providing a notch portion such as a groove in the convex portion 6 of the band piece 3 . When an O-ring made of an elastic material or a washer-shaped cushioning member is provided, the inner diameters of the first piece connecting hole 8 and the second piece connecting hole 9 or the case connecting hole 23 should be the same. may be composed of cylindrical portions having the same diameter without the stepped portion 4c provided at the boundary between the small-diameter cylindrical portion 4a and the large-diameter cylindrical portion 4b.

(Second embodiment)
Next, a second embodiment in which the present invention is applied to a wristwatch band will be described with reference to FIGS. 10 to 12. FIG. The same parts as those of the first embodiment shown in FIGS. 1 to 8 are denoted by the same reference numerals.
As shown in FIGS. 10 and 11, the band 2 of this wristwatch has a pair of cushioning members 35 for preventing contact between the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3. The structure is different from that of the first embodiment, and the structure is almost the same as that of the first embodiment except for this.

10 and 11, each of the pair of cushioning members 35 is arranged between the side surface of the convex portion 6 of the band piece 3 and the inner side surface of the concave portion 7 of the adjacent band piece 3. and a cylindrical second buffer 37 inserted into the second piece connecting holes 9 provided on both sides 7a of the recess 7 and into which the connecting pin 5 is inserted. . The cushioning member 35 is made of a light and highly rigid material such as carbon resin or reinforced plastic, and has a first cushioning portion 36 and a second cushioning portion 37 integrally formed.

In this case, the second piece connecting holes 9 provided on both side portions 7a of the concave portion 7 of the band piece 3 are closer than the first piece connecting holes 8 provided on the convex portion 6 of the band piece 3 as in the first embodiment. is also formed with a large inner diameter. As shown in FIGS. 11 and 12, the first cushioning portion 36 is formed in a washer shape, and extends from one end portion of the cylindrical second cushioning portion 37, that is, the inner end located inside the concave portion 7 of the band piece 3. provided in the department. The first buffer portion 36 has an outer diameter larger than the inner diameter of the second piece connecting hole 9 of the concave portion 7 of the band piece 3 and smaller than the thickness of the band piece 3 .

As shown in FIGS. 11 and 12, the second cushioning portion 37 has an outer diameter approximately the same as the inner diameter of the second piece connecting hole 9 provided on both sides 7a of the concave portion 7 of the band piece 3. is formed to have substantially the same size as the inner diameter of the first piece connecting hole 8 of the convex portion 6 of the band piece 3 . The second buffer portion 37 is formed so that its axial length is slightly shorter than the axial length of the second piece connecting hole 9 of the concave portion 7 of the band piece 3 .

11 and 12, the pair of cushioning members 35 are arranged such that the second cushioning portion 37 is moved from the inside of the concave portion 7 of the band piece 3 to the inside of the second piece connecting hole 9 of the concave portion 7 of the band piece 3 . The first cushioning portions 36 are configured to abut against the inner side surfaces of the recesses 7 of the band piece 3 when they are inserted into the band pieces 3 respectively. In this case, each of the pair of cushioning members 35 is configured such that the outer end portion of the second cushioning portion 37 on the opposite side of the first cushioning portion 36 does not protrude from the second piece coupling hole 9 to the second piece coupling. It is configured to be positioned within the bore 9 .

By the way, as shown in FIG. 11, the connecting pin 5 that connects the band pieces 3 together is a rod-shaped member made of metal. By inserting into the second buffer portion 37 of the buffer member 35 inserted into the second piece connecting hole 9 and into the first piece connecting hole 8 of the convex portion 6 of the band piece 3, It is configured to connect the band pieces 3 to each other in a rotatable state.

In this case, the buffer cylinder 38 is made of elastic soft synthetic resin such as silicone rubber, as in the first embodiment. As shown in FIG. 11, the buffer cylinder 38 has an inner diameter equal to the outer diameter of the connecting pin 5, and has an outer diameter equal to the inner diameter of the first piece connecting hole 8 of the protrusion 6 of the band piece 3 and the buffer member. It is formed to have the same size as the inner diameter of the second buffer portion 37 of 35 .

On the other hand, the connecting pin 5, as shown in FIG. is formed slightly longer than the length of As a result, the connecting pin 5 is inserted into the second buffer portion 37 of the buffer member 35 inserted into the second piece connecting hole 9 of the concave portion 7 of the band piece 3 and the first piece connecting hole 8 of the convex portion 6 of the band piece 3 . When inserted inwardly, it protrudes to both sides of the band piece 3 and is inserted into each locking hole 10b of the pair of band protection members 10 respectively.

In this case, as shown in FIG. 11, the shock absorbing cylinder 38 has a length in the axial direction that is shorter than the length in the axial direction of the connecting pin 5 and slightly shorter than the length in the width direction of the band piece 3. formed by As a result, when the buffer cylinder 38 is attached to the outer circumference of the connecting pin 5 , both ends of the connecting pin 5 protrude from both ends of the buffer cylinder 38 .

Also, as shown in FIG. 11, the shock absorbing cylinder 38 is the second end of the shock absorbing member 35 inserted into the second piece connecting hole 9 of the concave portion 7 of the band piece 3 while being attached to the outer periphery of the connecting pin 5 . When inserted into the buffer portion 37 and the first piece connecting hole 8 of the convex portion 6 of the band piece 3 , both ends of the buffer cylinder 38 are inserted into the second piece connecting holes 9 of the concave portion 7 of the band piece 3 . The outer ends of the second cushioning portions 37 of the cushioning member 35 are located substantially at the same positions.

By the way, the pair of band protection members 10 are attached to both sides of the band piece 3 by screw members 11 as in the first embodiment. That is, as shown in FIG. 6, these pair of band protection members 10 are connecting members protruding from both side portions 7a of the concave portion 7 of the band piece 3 when attached to both side portions of the band piece 3 by screw members 11. By inserting each end of the pin 5 into each locking hole 10b, the pair of band protection members 10 are configured not to rotate around the screw member 11. As shown in FIG.

Next, the operation of the wristwatch band 2 in the second embodiment will be described.
When assembling the band 2, first, the second cushioning portions 37 of the pair of cushioning members 35 are inserted into the second piece connecting holes 9 provided on both side portions 7a of the concave portion 7 of the band piece 3, respectively. That is, the cylindrical second cushioning portions 37 are inserted into the second piece connecting holes 9 of the recesses 7 of the band piece 3 from the inside of the recesses 7 of the band piece 3 , and the first cushioning portions 36 are inserted into the band piece 3 . Both sides of the recess 7 are pressed against each other.

At this time, the outer ends of the second cushioning portions 37 inserted into the second piece connecting holes 9 of the concave portion 7 of the band piece 3 do not protrude from both sides of the band piece 3, and the second cushioning portion 37 of the concave portion 7 of the band piece 3 does not protrude from both sides of the band piece 3. It is arranged in the piece connecting hole 9 . In this state, the convex portion 6 of another band piece 3 adjacent thereto is arranged in the concave portion 7 of the band piece 3 . In this state, the first buffer portion 36 is sandwiched between both side surfaces of the concave portion 7 and the opposite side surfaces of the convex portion 6 .

The second cushioning portions 37 of the pair of cushioning members 35 inserted into the second piece connecting holes 9 of the concave portion 7 of the band piece 3 and the first piece connecting hole 8 of the convex portion 6 of the band piece 3 are made to be the same. correspond on the axis. At this time, in a state in which the first buffer portion 36 is sandwiched between both side surfaces in the concave portion 7 and opposite side surfaces of the convex portion 6, the tip end surface of the convex portion 6 and the concave portion 7 corresponding to the first buffer portion 36 are sandwiched. A slight gap is provided between the inner end surface of the inner portion. Therefore, the concave portion 7 of the band piece 3 and the convex portion 6 of the adjacent band piece 3 do not come into contact with each other.

In this state, the connecting pin 5 is inserted into each of the second cushioning portions 37 of the pair of cushioning members 35 together with the cushioning cylinder 38 . At this time, the buffer cylinder 38 is attached to the outer circumference of the connecting pin 5 in advance. One end of the connecting pin 5 is inserted into the second cushioning portion 37 of one of the cushioning members 35 inserted into the second piece connecting hole 9 of the concave portion 7 of the band piece 3 together with the cushioning cylinder 38 from the outside of the band piece 3 . After inserting it into the first piece connecting hole 8 of the convex portion 6 of the other adjacent band piece 3, the other buffer inserted into the second piece connecting hole 9 of the concave portion 7 of the band piece 3 is inserted. The inside of the concave portion 7 of the band piece 3 is inserted into the second buffer portion 37 of the member 35 .

As a result, the connecting pin 5 made of metal is arranged by the cushioning cylinder 38 without contacting the second piece connecting hole 9 on both sides 7 a of the concave portion 7 and the first piece connecting hole 8 on the convex portion 6 . In this state, both sides 7a of the concave portion 7 of the band piece 3 and the convex portion 6 of the adjacent band piece 3 are connected by the connecting pin 5 in a rotatable state. Therefore, the band piece 3 and another band piece 3 adjacent thereto are connected in a rotatable state about the connecting pin 5 . In this manner, a plurality of band pieces 3 are sequentially connected.

A pair of band protection members 10 are arranged on both sides of the plurality of band pieces 3 and attached by screw members 11 . At this time, both ends of the connecting pin 5 protruding from both sides 7a of the concave portion 7 are inserted into the engaging holes 10b provided on the opposite surfaces of the band protecting member 10, as in the first embodiment, and the band protecting member 10 is secured. The counterbored hole 10a of the band piece 3 corresponds to the mounting hole 14 of the band piece 3 on the same axis.

In this state, the shaft portion 12b of the female screw portion 12 of the threaded member 11 is inserted into the mounting hole 14 of the band piece 3 through the countersunk hole 10a of one of the band protection members 10. As shown in FIG. Then, the threaded portion 13b of the male threaded portion 13 is inserted into the mounting hole 14 of the band piece 3 through the countersunk hole 10a of the other band protection member 10, and the threaded hole provided at the end of the shaft portion 12b of the female threaded portion 12 is inserted. 12c, and in this state, the female threaded portion 12 and the male threaded portion 13 are tightened.

Then, the head portion 12a of the female threaded portion 12 and the head portion 13a of the male threaded portion 13 are arranged in the counterbore holes 10a of the pair of band protection members 10, and the pair of band protection members 10 are positioned on both sides of the band bridge 3. pressed and fixed. In this state, since the outer end of the shock absorbing cylinder 4 is inserted into the locking hole 10b of the band protection member 10, the band protection member 10 does not rotate about the screw member 11. As shown in FIG. Thereby, the band 2 is assembled.

In the wristwatch band 2 assembled in this way, the band piece 3 is made of a hard and brittle material such as sapphire, glass, ceramic, etc., as in the first embodiment. In addition, since the band piece 3 is exposed except for the band protection member 10, the band piece 3 is highly colored and has excellent design and high commercial value.

In the wristwatch band 2, the first cushioning portion 36 of the cushioning member 35 is provided between both side surfaces of the convex portion 6 of the band piece 3 and both side surfaces of the concave portion 7 of the band piece 3 adjacent thereto. Therefore, even if the band piece 3 is made of a hard and brittle material such as sapphire, glass, ceramic, etc., the convex portion 6 of the band piece 3 and the other parts adjacent to it may be damaged when subjected to an impact such as being dropped. , and the recess 7 of the band piece 3 do not come into contact with each other. Therefore, it is possible to prevent damage to the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3 due to the impact.

In the wristwatch band 2, the second cushioning portions 37 of the cushioning member 35 are inserted into the second piece connecting holes 9 provided on both sides 7a of the concave portion 7 of the band piece 3, respectively. The connecting pin 5 is inserted into the first piece connecting hole 8 provided in the convex portion 6 of the adjacent band piece 3 with both ends of the connecting pin 5 inserted into the band piece 3. The second piece connecting hole 9 of the concave portion 7 and the first piece connecting hole 8 of the convex portion 6 of the adjacent band piece 3 do not come into contact with each other. Therefore, when the band 2 receives an impact due to a drop or the like, the protrusion 6 of the band piece 3 and the side portions 7a of the recess 7 of the other band piece 3 adjacent thereto are not damaged by the connecting pin 5. do not have.

In this case, the metallic connecting pin 5 that connects the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3 is provided with a buffer cylinder 38 on its outer circumference, so that the band piece 3 The second cushioning portion 37 of the cushioning member 35 inserted into the second piece connecting hole 9 on both side portions 7a of the concave portion 7 and the first piece connecting hole 8 of the convex portion 6 of the other band piece 3 adjacent thereto. , even if it is inserted, it does not come into contact with the protrusion 6 of the band piece 3 and the recess 7 of the other band piece 3 adjacent thereto.

Therefore, when the band 2 of this wristwatch receives an impact due to being dropped or the like, the impact can be absorbed by the shock absorbing cylinder 38 provided on the outer periphery of the connecting pin 5. The protrusion 6 and the side portions 7a of the recess 7 of the other band piece 3 adjacent thereto are not damaged by the connecting pin 5. - 特許庁

In addition, since the band protection member 10 made of a light and highly rigid material such as carbon resin is attached to the side of the band piece 3, the side of the band piece 3 will not be damaged by dropping or the like, as in the first embodiment. Even if an impact is received, the impact can be received by the band protection member 10, so that the edge of the side of the band piece 3 is not cracked or chipped, and the side of the band piece 3 is protected by the band protection member 10.例文帳に追加can be reliably and well protected.

As described above, according to the wristwatch band 2 of the second embodiment, in addition to having the same effects as the first embodiment, the convex portion 6 of the band piece 3 and the concave portion of the other band piece 3 adjacent thereto are also provided. A buffer member 35 for preventing contact with the band piece 3 is arranged between the convex portion 6 of the band piece 3 and the concave portion 7 of the other band piece 3 adjacent thereto, and the second buffer portion 36 of the concave portion 7 . A cylindrical second buffer portion 37 inserted into the piece connecting hole 9 prevents damage to the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3 due to impact. can be prevented.

That is, in the wristwatch band 2, the first cushioning portion 36 of the cushioning member 35 is located between both side surfaces of the convex portion 6 of the band piece 3 and both side surfaces of the concave portion 7 of the other band piece 3 adjacent thereto. Therefore, when receiving an impact due to a drop or the like, both side surfaces of the convex portion 6 of the band piece 3 and both side surfaces of the recessed portion 7 of the adjacent band piece 3 are prevented from coming into contact with each other. As a result, it is possible to reliably prevent the protrusion 6 of the band piece 3 and the recess 7 of the adjacent band piece 3 from being damaged by impact.

In the wristwatch band 2 , the tubular second cushioning portion 37 of the cushioning member 35 is inserted into the second piece connecting hole 9 of the concave portion 7 , and both sides of the connecting pin 5 are inserted into the second cushioning portion 37 . Since the inserted state is inserted into the first piece connecting hole 8 of the convex portion 6 of the other adjacent band piece 3, even if the connecting pin 5 is made of metal, it can be inserted into the second piece connecting hole 8 of the concave portion 7 of the band piece 3. The piece connecting hole 9 does not come into contact with the first piece connecting hole 8 of the convex portion 6 of the other band piece 3 adjacent thereto. Therefore, when the band 2 receives an impact due to a drop or the like, the protrusion 6 of the band piece 3 and the side portions 7a of the recess 7 of the adjacent band piece 3 are prevented from being damaged by the connecting pin 5. can do.

In this case, in the band 2 of this wristwatch, a buffer cylinder 38 is provided on the outer periphery of the metal connecting pin 5 that connects the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3. , the second cushioning portion 37 of the cushioning member 35 inserted into the second piece connecting holes 9 of the side portions 7a of the concave portion 7 of the band piece 3, and the first piece of the convex portion 6 of the other band piece 3 adjacent thereto. Even if the connecting pin 5 is inserted into the connecting hole 8, the convex portion 6 of the band piece 3 and the concave portion 7 of the adjacent band piece 3 do not come into contact with each other.

Therefore, when the wristwatch band 2 receives an impact due to being dropped or the like, the impact can be absorbed by the shock absorbing cylinder 38 provided on the outer circumference of the connecting pin 5, so that the convex portion 6 of the band piece 3 can absorb the impact. and both side portions 7a of the concave portion 7 of the other band piece 3 adjacent thereto can be reliably prevented from being damaged by the connecting pin 5.例文帳に追加

In the above-described second embodiment, the structure for connecting the band pieces 3 was described, but the present invention is not limited to this. It can also be applied to a structure that connects the portion 15 .

In addition, in the above-described second embodiment, the connection pin 5 has a simple rod shape, but the present invention is not limited to this. 30 may be used to connect the protrusion 6 of the band piece 3 and the recess 7 of another band piece 3 adjacent thereto.

In addition, in the above-described second embodiment, the case where the second cushioning portion 37 of the cushioning member 35 is inserted into the second piece connecting holes 9 provided on both side portions 7a of the concave portion 7 of the band piece 3 has been described. The present invention is not limited to this. A structure in which the second buffer portion 37 is inserted into the first piece connecting hole 8 provided in the convex portion 6 of the band piece 3 may be employed.

Further, in the above-described second embodiment, the second cushioning portions 37 of the cushioning member 35 are provided in the second piece connecting holes 9 provided in both side portions 7a of the concave portion 7 of the band piece 3 and the convex portion 6 of the band piece 3. Although a case has been described in which the first piece connecting hole 8 is inserted into one of the first piece connecting holes 8, the present invention is not limited to this. In a state where it is arranged between the adjacent protrusions 6 of another band piece 3, the second cushioning portion 37 is connected between the first piece connecting hole 8 of the protrusion 6 of the band piece 3 and the other adjacent band piece. 3 may be inserted into both the recess 7 and the second piece connecting hole 0 .

Furthermore, in the above-described second embodiment, the first buffer portion 36 of the buffer member 35 is positioned between both side surfaces of the convex portion 6 of the band piece 3 and both side surfaces of the concave portion 7 of the other band piece 3 adjacent thereto. However, the present invention is not limited to this. A gap may be provided between the tip surface of the projection 6 and the corresponding inner end surface of the recess 7 by extending it between the inner end surface of the recess 7 .

In addition, in the above-described second embodiment, the cushioning member 35 includes the washer-shaped first cushioning portion 36 and the cylindrical second cushioning portion 37, but the present invention is not limited to this. Alternatively, the buffer member 35 may have a structure in which only the washer-shaped first buffer portion 36 is provided.

In addition, in the first and second embodiments described above, the case where it is applied to the band 2 of the wristwatch has been described, but the present invention does not necessarily have to be applied to the band 2 of the wristwatch. It can also be applied to bands.

Although several embodiments of the present invention have been described above, the present invention is not limited to these, and includes the invention described in the claims and their equivalents.
The invention described in the claims of the present application will be additionally described below.

(Appendix)
According to the first aspect of the invention, a band piece made of a brittle material having a convex portion provided at one end and a concave portion having a size corresponding to the convex portion provided at the other end, and the convex portion of the band piece are provided. Another member made of a brittle material provided with a concave portion to be arranged, a first connecting hole provided in the convex portion of the band piece, and second connecting holes provided on both sides of the concave portion of the other member. a shock-absorbing cylinder inserted into the shock-absorbing cylinder to fix the convex portion of the band piece and the recess of the other member in a non-contact state; and a connecting member.

The invention according to claim 2 is the band according to claim 1, wherein the inner diameter of the first connecting hole of the band piece is different from the inner diameter of the second connecting hole of the other member, and the shock absorbing cylinder is The band is characterized in that a stepped portion is provided at a boundary portion between the first connecting hole and the second connecting hole to prevent contact between the convex portion and the concave portion.

The invention according to claim 3 is the band according to claim 1 or 2, wherein the cushioning member for preventing contact between the convex portion of the band piece and the concave portion of the other member is the convex portion or the concave portion. It is a band characterized by being provided in.

The invention according to claim 4 is the band according to claim 3, wherein the cushioning member includes a first cushioning portion arranged between the convex portion of the band piece and the concave portion of the other member; a cylindrical second cushioning portion inserted into at least one of the first connecting hole of the convex portion and the second connecting hole of the concave portion and into which the connecting member is inserted; is a band.

The invention according to claim 5 is the band according to any one of claims 1 to 4, wherein protective members are attached to both sides of the band piece and both sides of the other member. It is a band characterized by

The invention according to claim 6 is the band according to any one of claims 1 to 5, wherein the other member is the same band piece as the band piece, and the convex portion of the band piece is adjacent to the band piece. The band is characterized in that it is arranged in and connected to the recess of the other band piece.

The invention according to claim 7 is the band according to any one of claims 1 to 5, wherein the other member is a band mounting portion made of a brittle material provided in the case, and the band mounting portion is made of a brittle material. The band is characterized in that the convex portion of the band piece is arranged in the concave portion and connected.

According to an eighth aspect of the invention, there is provided a timepiece comprising the band according to any one of the first to seventh aspects.

1 wristwatch case 2 band 3 band piece 4, 38 buffer cylinder 4a small-diameter cylinder 4b large-diameter cylinder 4c step 5 connecting pin 6 projections 7, 22 recesses 7a, 22a both sides 8 first piece connecting hole 9 second piece Connecting hole 10 Band protection member 10a Counterbore 10b, 25 Locking hole 11 Screw member 12, 31 Female threaded portion 12a, 31a Head 12b, 31b Shaft 12c, 31c Screw hole 13, 32 Male threaded portion 13a, 32a Head 13b , 32b screw portion 14 attachment hole 15 band attachment portion 17 case main body 19 second case protection member 23 case connection hole 30 connection screw member 35 buffer member 36 first buffer portion 37 second buffer portion

Claims (12)

a band piece provided with a convex portion;
another member provided with a recess ;
It is inserted into a first connecting hole provided in the convex portion of the band piece and a second connecting hole provided in the concave portion of the other member, and is inserted into the convex portion of the band piece and the other member. a buffer cylinder that fixes the recess in a non-contact state ;
A band comprising : 2. A band according to claim 1, wherein said shock absorbing cylinders are made of synthetic resin and arranged in said first connecting hole and said second connecting hole on both sides of said recess of said band piece. band. 3. The band according to claim 1, wherein the inner diameter of the first connecting hole of the protrusion of the band piece is smaller than the inner diameter of the second connecting hole of the recess of the other member. cage,
A band characterized in that the buffer cylinder is provided with a stepped portion positioned at a boundary portion between the first connecting hole and the second connecting hole to prevent contact between the convex portion and the concave portion. . 4. The band according to claim 3, wherein the buffer cylinder includes a small-diameter cylindrical portion inserted into the first connecting hole of the convex portion of the band piece, and a second connecting hole of the concave portion of the other member. , and a large-diameter tubular portion having an outer diameter larger than that of the small-diameter tubular portion,
The band, wherein the stepped portion is provided at a boundary portion between the small-diameter tubular portion and the large-diameter tubular portion. 5. The band according to claim 4, wherein the small-diameter cylindrical portion of the shock-absorbing cylinder has an axial length shorter than the inner diameter of the shock-absorbing cylinder, and both sides of the convex portion of the band piece A band characterized by being formed longer than a gap between both side surfaces of the recess of another member. 6. The band according to claim 4 or claim 5, wherein the large-diameter cylindrical portion of the buffer cylinder has an axial length greater than the axial length of the second connecting hole provided in the recess of the band piece. A band characterized by being formed to be long. In the band according to any one of claims 1 to 6, a cushioning member is provided in the protrusion or the recess to prevent contact between the protrusion of the band piece and the recess of the other member. A band characterized by 8. The band according to claim 7, wherein the cushioning member includes a first cushioning portion arranged between the convex portion of the band piece and the concave portion of the other member, and the first connecting hole of the convex portion. and a tubular second cushioning portion inserted into at least one of the recess and the second connecting hole. 9. The band according to any one of claims 1 to 8, wherein protective members are attached to both sides of said band piece and to both sides of said other member. The band according to any one of claims 1 to 9, wherein the other member is the same band piece as the band piece, and the convex portion of the band piece is inserted into the concave portion of the adjacent other member. A band characterized by being arranged and connected. The band according to any one of claims 1 to 9, wherein the other member is a band mounting portion provided on the case, and the convex portion of the band piece is arranged in the concave portion of the band mounting portion. A band characterized in that it is connected by A timepiece comprising the band according to any one of claims 1 to 11.

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