JP4819384B2 - Striped jewelry - Google Patents

Description

  The present invention relates to a band-shaped accessory such as a watch band or a bracelet formed by connecting a number of pieces with connecting pins, and more particularly to a structure having a structure that prevents the connecting pins from being removed from the piece.

  2. Description of the Related Art Conventionally, many strap-like accessories such as a watch band that are connected by connecting a connecting pin to a middle piece and a pair of outer pieces arranged so as to sandwich the middle piece have been commercialized. However, in the band-shaped accessory having this type of piece connecting structure, the connecting pin may be removed from the piece due to rotation or vibration of the piece in use.

  Therefore, as shown in FIG. 9, a concave ring portion 8a is formed at the end portion of the connecting pin 8 that protrudes laterally from a pair of outer pieces 6 (only one is shown) arranged so as to sandwich the intermediate pieces 2 and 4. It has been proposed that the concave ring portion 8a is stopped by the washer 10 and the cover 12 is fixed to the outer piece 6 with a screw 14 to contain the washer 10 and prevent the connecting pin 8 from being pulled out. (See Patent Document 1).

  However, the structure shown in FIG. 9 has a problem that the structure becomes complicated and the number of parts increases.

  Further, as shown in FIG. 10, the connecting pin 18 inserted into the pin insertion hole 16a of the piece 16 is screwed with a screw 20 in the vicinity of the opening of the pin insertion hole 16a so as to be orthogonal to the pin insertion hole 16a. A structure for containing the connecting pin 18 has also been proposed (see Patent Document 2).

However, the structure shown in FIG. 10 has a problem that the screw 20 may come off or loosen due to vibration during use, and as a result, the connecting pin 18 may be pulled out.
Registered Utility Model No. 3033873 Japanese Utility Model Publication No. 56-90112

  The subject of this invention is providing the strip | belt-shaped accessory which solves the said problem and prevents reliably that the pin for a connection removes from a piece.

The strip-shaped accessory according to the present invention is a strip-shaped accessory that connects pieces by inserting a connecting pin, wherein the piece includes a middle piece and an outer piece that sandwiches the middle piece, and the connecting pin is inserted into the middle piece. The outer piece is screwed with a screw to prevent the connecting pin from being pulled out and connected to the piece, and the outer piece includes a piece member forming a front surface side and a back surface side. consists of a form to the bridge member, the end portion of the joint pin, when sandwiched between frame member forming the frame member and the rear surface side forming the front side, the bridge member and the rear surface side to form the surface side The tip portion and the small diameter portion formed at the end portion of the coupling pin respectively fit in the spaces formed by the large diameter concave portion and the small diameter concave portion respectively provided in the piece member that forms the surface, or the surface Piece member forming the side and piece member forming the back side The recess formed respectively to form an opening, further form protrusions to the opening portion, projecting portion and, disconnect the connection pin by a recess formed in an end portion of the connecting pin is engaged Prevents removal. Moreover, the piece member which forms the said surface side is comprised from the plate-shaped part and the outer wall part hung down in the back surface direction. The screw in the band-shaped accessory is fastened to the piece member that forms the front surface side and the piece member that forms the back surface side from the direction of the surface in contact with the wrist.
The screw is made of a superelastic material. The superelastic material is titanium (Ti), nickel-titanium (Ni-Ti), nickel-titanium-cobalt (Ni-Ti-Co), nickel-titanium-iron (Ni-Ti-Fe) or nickel-titanium- It consists of a super elastic alloy which has chromium (Ni-Ti-Cr) as a main component.

According to the present invention, since the connecting pin is prevented from being pulled out by screwing the outer piece constituted by two members, the connecting pin is reliably prevented from being pulled out while being simple in structure. be able to. In particular, since the screw is formed of a superelastic material, the screw is not loosened due to the rotation or vibration of the piece generated during use, and the connection pin can be reliably prevented from being pulled out.

The connecting pin in the belt-like accessory of the present invention is inserted through the middle piece and connects the middle pieces to each other in the longitudinal direction of the belt-like accessory. The outer piece is arranged so as to sandwich the middle piece .

  In the present invention, the outer piece is composed of the front and back piece members, the end of the connecting pin is sandwiched between the two piece members, and the two piece members are integrated by screws. This prevents the pins from being removed.

(Reference example)
FIG. 1 is a partially cut away exploded view of a watch band as a band-shaped accessory according to a reference example of the present invention. Reference numeral 22 denotes a middle piece made of stainless steel, titanium, titanium alloy, or the like. In this reference example, a concave connecting portion 22a is formed at the center of one end in the longitudinal direction of the band, and a convex connecting portion is formed at the center of the other end. 22b is formed. Further, the inner piece 22 is provided with a through hole 22c formed in the bandwidth direction across the concave connecting portion 22a, and a through hole 22d formed so as to cross the convex connecting portion 22b in the bandwidth direction. ing. Further, both end faces 22e in the band width direction of the middle piece 22 are provided with screw holes 22f for screwing screws to be described later.

Reference numeral 24 denotes an outer piece made of stainless steel, titanium, titanium alloy, or the like. In this reference example, a pair of outer pieces 24 correspond to one middle piece 22. The outer piece 24 has a screw mounting hole 24a penetrating in the band width direction. The screw mounting holes 24 a are formed in the screw holes 22 f of the middle piece 22 when the outer pieces 24 are brought into contact with both end surfaces 22 e of the middle piece 22 so that the middle piece 22 is sandwiched between the pair of outer pieces 24. It is positioned to communicate. This screw mounting hole 24a is shorter than a screw to be described later, and is set so that the screw passes therethrough. In addition, a stepped portion 24b is formed in the screw mounting hole 24a so that the head portion of the screw is locked.

Reference numeral 26 denotes a connecting pin. In this reference example, a round bar having a circular cross section is used. The length of the connecting pin 26 is set so as to be within the dimension of the middle piece 22 in the bandwidth direction.

  Reference numeral 28 denotes a screw, which is formed of a superelastic material. As this superelastic material, titanium (Ti), nickel-titanium (Ni-Ti), nickel-titanium-cobalt (Ni-Ti-Co), nickel-titanium-iron (Ni-Ti-Fe) or nickel-titanium -A superelastic alloy mainly composed of chromium (Ni-Ti-Cr) is used.

In the watch band in the present reference example, the concave coupling portion 22a of the middle piece 22 and the convex coupling portion 22b of the adjacent middle piece 22 are fitted together, and the coupling pin 26 is inserted into the through holes 22c and 22d that communicate with each other. The middle piece 22 is connected. At this time, the connecting pin 26 is in a state of entering the middle piece 22, and here, the outer piece 24 is brought into contact with the end face 22 e from the left and right of the middle piece 22 in the drawing. Then, the screw 28 is inserted into the screw mounting hole 24 a of the outer piece 24 and screwed into the screw hole 22 f of the middle piece 22. As a result, the outer piece 24 is fixed to the middle piece 22, and the outer piece 24 closes the through hole 22c of the middle piece 22 to confine the connecting pin 26 and prevent it from being pulled out.

In the structure in this reference example, since the outer piece 24 and the screw 28 are fixed to the middle piece 22, the rotation of the middle piece 22 is directly transmitted as a rotational force and the screw 28 is not loosened. Screw 28
Is formed of a super elastic material, even if vibration or the like occurs in the middle piece 22 or the outer piece 24, it follows or absorbs elastically, and the screw 28 does not rotate and loosen.

  Further, as shown in FIG. 2, a bottomed recess in which the connecting pin 26 is set to be longer than the dimension of the middle piece 22 in the bandwidth direction and the end of the connecting pin 26 is provided in the outer piece 24. You may comprise so that it may enter into 24c. The recess 24 c of the outer piece 24 is provided on the end face of the outer piece 24 in the band width direction so as to communicate with the through hole 22 c of the middle piece 22. If comprised in this way, since the inner piece 22 and the outer piece 24 are connected by two points, the connection pin 26 and the screw 28, it can prevent that the outer piece 24 rotates centering on the screw 28, and the screw 28 It becomes easy to attach or remove.

Figure 3 is a partial sectional plane view of a watch band as a band accessory according to an embodiment of the present invention, FIG. 4 is an exploded plan view of the outer frame and the screw shown in FIG. 3, FIG. 5 of the outer frame and the screw shown in FIG. 4 FIG. 6 is a sectional view of the outer piece shown in FIG. 3 cut in the band width direction, and FIG. 7 is a sectional view of the outer piece shown in FIG. 3 cut in the band longitudinal direction. FIG. 3 shows the back side of the watch band.

  Reference numeral 32 denotes a middle piece made of stainless steel, titanium, titanium alloy or the like, and has two through holes 32a and 32b formed in the bandwidth direction. Reference numeral 36 denotes a connecting pin, which is inserted through the through holes 32a and 32b of the middle piece 32, and ends thereof projecting outward in the bandwidth direction from the openings of the through holes 32a and 32b. An end portion of the connecting pin 36 is provided with a small-diameter portion 36a and a tip portion 36b having a larger diameter.

  Reference numeral 34 denotes an outer piece made of stainless steel, titanium, titanium alloy, or the like, and in this embodiment, a piece member 34A that forms the front surface (visible) side and a piece member 34B that forms the back surface (contacts the wrist) side. It is configured. The piece member 34A includes a plate-like portion 34a and an outer wall portion 34b that is suspended from the outer end in the bandwidth direction in the back surface direction (upward in FIG. 5). In addition, the piece member 34B is a plate-like member whose dimensions are set in accordance with the height, width, etc. of the side wall part 34b so as to form a rectangular parallelepiped when overlapped with the plate-like part 34a of the piece member 34A. Small-diameter concave portions 34c and 34d that form spaces adapted to face the small-diameter portion 36a and the distal-end portion 36b of the connecting pin 36 on opposite surfaces of the plate-like portion 34a and the piece member 34B of the piece member 34A, Large-diameter concave portions 34e and 34f are formed at corresponding positions. The small-diameter concave portions 34 c and 34 d are formed so as to open to the end face side facing the middle piece 32. On the other hand, a screw attachment hole 34g for attaching a screw 38 is provided at the center of the plane of the piece member 34B, and a screw hole 34h is provided at a position corresponding to the screw attachment hole 34g of the plate-like portion 34a of the piece member 34A. Is provided.

The screw 38 is formed of a superelastic material as in the reference example, and the superelastic material in this example is titanium (Ti), nickel-titanium (Ni-Ti), nickel-titanium-cobalt (Ni-Ti). -Co), a nickel-titanium-iron (Ni-Ti-Fe) or a nickel-titanium-chromium (Ni-Ti-Cr) superelastic alloy.

In the watch band in the present embodiment, the communication pin 36 is passed through the through holes 32 a and 32 b of the middle piece 32, and the outer piece 34 is attached to the end of the connecting pin 36 protruding from the adjacent middle piece 32. At this time, the end portion of the connecting pin 36 is sandwiched by the piece members 34A and 34B from the front and back sides of the band. The piece members 34A and 34B of the outer piece 34 are provided with small-diameter concave portions 34c and 34d and large-diameter concave portions 34e and 34f that fit the small-diameter portion 36a and the tip portion 36b at the end of the connecting pin 36, respectively. The piece members 34A and 34B are fitted in a state in which the end portion of the connecting pin 36 is within the space formed by the small-diameter concave portions 34c and 34d and the large-diameter concave portions 34e and 34f. When the end portion of the connecting pin 36 is accommodated between the piece members 34A and 34B, the main body and the distal end portion 36b of the connecting pin 36 cannot pass through the opening portions of the small-diameter concave portions 34c and 34d, and the connecting pin is connected from the outer piece 34. 36 will not be removed. Here, the screw 38 is attached from the screw attachment hole 34g of the piece member 34B and screwed into the screw hole 34h of the piece member 34A, thereby integrating the piece members 34A and 34B.

In this structure, the rotation of the piece is not directly transmitted to the screw 38 as a rotational force, and the screw 38 is not loosened by the movement of the piece. Further, since the screw 38 is also formed of a superelastic material as in the reference example , even if vibration or the like occurs in the outer piece 34, the screw 38 does not loosen by following or absorbing it.

  FIG. 8 is a cross-sectional view showing a modified example of the connecting pin 36 that makes it possible to further simplify the shape of the end of the connecting pin 36 shown in FIG. In the outer piece 34, the piece members 34A and 34B are provided with concave portions 34i and 34j having a diameter equal to or slightly larger than the diameter of the connecting pin 36 so as to face each other. The recesses 34i and 34j are open on the end face side in the bandwidth direction facing the middle piece 32, and a protrusion 34k is provided in one of the openings (in this embodiment, the opening of the recess 34j). . On the other hand, the connecting pin 36 has a recess 36c on the outer periphery of the end, and the connecting pin 36 cannot be removed by engaging the recess 36c with the protruding portion 34k of the piece member 34B. . If comprised in this way, the front-end | tip of the connecting pin 36 may be the same shape as the main body, and the shape of the recessed part of the connecting pin 36 and the piece members 34A and 34B can be made into a simpler shape. .

Incidentally, one or advance fixed to Chukoma 22 of the outer frame 24 in the reference example, by previously connecting pin 36 on one of the outer frame 34 fixed in advance by press fitting in the embodiment, the other outer piece 24 , 36 can be attached to prevent the connecting pins 26, 36 from being pulled out. In this case, the fixed outer pieces 24 and 36 may have a simple structure that does not require the screws 28 and 38.
Incidentally, it goes without saying that the piece member 34A may be on the back side (in contact with the wrist), the piece member 34B may be on the front side (visible) side, and the screw may be shown on the front side. At that time, the external appearance is improved by making the surface state of the screw head and the surface state of the piece member 34B the same.

The band-shaped accessory of the present invention can be used not only as a watch band as shown in the examples, but also as an accessory such as a bracelet. In particular, the structure described above, to place the screws on the back side of the embodiment, the screw does not appear on the surface and the side surfaces, it is suitable for personal ornament design is emphasized.

It is a partial cutaway exploded view of a watch band as a band-shaped accessory according to a reference example of the present invention. FIG. 4 is a partially cut exploded view showing a partial modification of the watch band shown in FIG. 1. It is a partial cutaway top view of the timepiece band as a beltlike accessory concerning the example of the present invention. FIG. 4 is an exploded plan view of an outer piece and screws shown in FIG. 3. It is a side view of the outer piece and screw shown in FIG. It is sectional drawing which cut | disconnected the outer piece shown in FIG. 3 in the band width direction. It is sectional drawing which cut | disconnected the outer piece shown in FIG. 3 in the band longitudinal direction. It is sectional drawing which shows the example of a change of the outer piece which enabled it to simplify the edge part shape of the connecting pin shown in FIG. It is sectional drawing which shows the structure of the conventional watch band. It is sectional drawing which shows the structure of the other conventional watch band.

2, 4 Middle piece 6 Outer piece 8, 18 Connection pin 8a Concave ring part 10 Washer 12 Cover 14, 20 Screw 16 Piece 16a Pin insertion hole 22 Medium piece 22a Concave connection part 22b Convex connection part 22c, 22d Through hole 22e End face 22f Screw hole 24 Outer piece 24a Screw mounting hole 24b Step portion 24c Recess 26 Connection pin 28 Screw 32 Middle piece 32a, 32b Through hole 34 Outer piece 34A, 34B Piece member 34a Plate-like part 34b Side wall part 34c, 34d Small diameter Recesses 34e, 34f Large-diameter recesses 34g Screw mounting holes 34h Screw holes 34i, 34j Recesses 34k Protruding parts 36 Connecting pins 36a Small diameter parts 36b Tip parts 36c Concave parts 38 Screws

Claims (5)

In the strip-shaped accessory that connects the pieces by inserting a connecting pin, the piece is composed of a middle piece and an outer piece that sandwiches the middle piece, the connecting pin is inserted into the middle piece, and the outer piece is screwed. The connecting pieces are connected by screwing to prevent the connecting pins from being pulled out, and the outer piece is composed of a piece member that forms the front side and a piece member that forms the back side. , an end of the joint pin, the time of sandwiching by piece member forming the the bridge member back side to form the surface side, respectively, the bridge member forming a bridge member and the rear surface side to form the surface side each space formed by the large-diameter recessed portion and a small diameter recess formed, or the formed tip end portion and the small diameter portion of the joint pin fits respectively, or bridge member to form the front side and Recesses provided in the piece members forming the back side Ri to form an opening, further form protrusions to the opening portion, projecting portion and a recess formed in an end portion of the connecting pin to prevent dropping off of the joint pin by engaging A strip-shaped accessory characterized by The strip-shaped accessory according to claim 1, wherein the piece member forming the front surface side includes a plate-like portion and an outer wall portion that is suspended in the rear surface direction. 2. The band-shaped accessory according to claim 1, wherein the screw is configured to screw the piece member that forms the front surface side and the piece member that forms the back surface side from the direction of the surface in contact with the wrist. The strip-shaped accessory according to any one of claims 1 to 3, wherein the screw is made of a superelastic material. The superelastic material is titanium (Ti), nickel-titanium (Ni-Ti), nickel-titanium-cobalt (Ni-Ti-Co), nickel-titanium-iron (Ni-Ti-Fe) or nickel-titanium- It consists of a superelastic alloy which has chromium (Ni-Ti-Cr) as a main component, The strip | belt-shaped jewelry of Claim 4 characterized by the above-mentioned.

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