JPH0629412U - Band piece structure - Google Patents

Abstract

(57) [Summary] [Purpose] It is intended to provide a band piece structure that is similar in appearance and finish to a conventional stainless steel material and that does not cause allergic symptoms even when it touches the skin. [Structure] The piece in the band piece structure of the present invention is divided into a front piece 1 on the front side and a back piece 2 on the back side. Front piece 1
Is made of stainless steel that has a good appearance and finish. The back piece 2 that touches the skin is made of a material that does not cause allergic symptoms. The front piece 1 and the back piece 2 are joined by fitting the back side fitting portion 1h and the front side fitting portion 2h provided therein. The piece of the present invention is as excellent in appearance and finish as a piece made of stainless steel, and does not cause allergic symptoms even when worn on the arm.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a metal band piece structure used in a watch band or the like, and more particularly to a metal band piece structure provided with measures against metal allergy.

[0002]

[Prior art]

 Bands that use pieces made of stainless steel that are not easily scratched, have excellent corrosion resistance, and have a high-class feel have been widely used. However, for some people, when metal containing nickel such as stainless steel touches the skin, allergic symptoms such as red spots on the metal may occur. In order to deal with such metal allergies, hitherto, pieces using a titanium material that does not contain nickel have been used.

[0003]

[Problems to be solved by the device]

 A conventional piece made of titanium material has a problem that the material cost is high, the finishing is difficult, and the surface treatment is also difficult. Further, the manufacturing cost is high because the processing is difficult. . There was also the problem that the pieces were too light to be wrapped around the arm or fit well, and there was no sense of quality.

The present invention has been made in view of the above problems, and an object thereof is to provide a band piece structure that is similar in appearance and finish to a conventional stainless steel material and that does not cause allergic symptoms even when touching the skin. To provide.

[0005]

[Means for Solving the Problems]

 The band piece structure of the present invention is made of stainless steel, and has a front piece having a back side fitting portion on the back side and a material not containing nickel, and is fitted to the back side fitting portion of the front piece on the front side. And a back piece having a front fitting portion.

[0006]

[Operation] The band piece structure of the present invention is divided into a front piece on the front surface side and a back piece on the back surface side, and the front piece is made of stainless steel material that looks and finishes well, and the back piece that touches the skin is an allergic piece. -Consists of materials that do not cause symptoms. Therefore, the piece of the present invention is as excellent in appearance and finish as the piece made of stainless steel, and does not cause allergic symptoms even when worn on the arm.

[0007]

【Example】

 FIG. 1 is an exploded perspective view showing a band piece structure according to an embodiment of the present invention. The piece shown in FIG. 1 is composed of a front piece 1 and a back piece 2.

The front piece 1 is made of a stainless steel material, and two convex portions 1a and 1b are provided on one end face in the longitudinal direction of the band, and the other end face is adapted to the convex portions 1a and 1b of adjacent pieces having the same shape. Two concave portions 1c and 1d are provided. The front piece 1 is provided with connecting pin holes 1e and 1d formed in the band width direction so as to penetrate through the convex portions 1a and 1b and the concave portions 1c and 1d. Further, on the back surface side of the front piece 1, there is provided a back surface fitting portion 1h including dovetail-shaped grooves 1f and 1g which are open at one end surface side and the back surface side in the longitudinal direction of the band and whose inside is widened. . Further, in the present embodiment, the slip-out prevention pin hole 1i is provided at a position penetrating the grooves 1f and 1g.

The back piece 2 is made of a metal material that does not contain nickel, such as titanium, titanium alloy, ceramics, etc., so that the two-dimensional shape of the back piece 2 is the same as that of the front piece 1 on both end faces in the longitudinal direction of the band. The convex portions 2a and 2b and the concave portions 2c and 2d are provided. Further, on the front surface side of the back piece 2, a front fitting portion 2h including a trapezoidal protrusion 2f, 2g having a wide tip is provided so as to fit into the grooves 1f, 1g of the front piece 1. Has been. Further, in the present embodiment, the drop-out prevention pin hole 2i is provided so as to penetrate the protrusions 2f and 2g.

The front piece 1 and the back piece 2 in this embodiment are joined by inserting the protrusions 2f, 2g of the back piece 2 into the grooves 1f, 1g of the front piece 1 in the direction of the arrow in the figure. In this state, the slip-out prevention pin holes 1i and 2i are communicated with each other, and the slip-out prevention pins 3 and 4 are inserted from here in the band width direction, whereby the front piece 1 and the back piece 2 are moved in the band longitudinal direction. Movement is restricted and these are integrated. It should be noted that the front piece 1 and the back piece 2 may be integrated or joined by adhesion or the like by simply mechanically fitting the protrusions 2f, 2g and the grooves 1f, 1g without using the pull-out prevention pins 3, 4. Good.

In the present embodiment, a plurality of pieces having the same structure are assembled so that the convex portions 1a, 1b, 2a, 2b and the concave portions 1c, 1d, 2c, 2d are engaged with each other, and are used for connecting pins. By passing a connecting pin through the holes 1e and 1d, adjacent pieces are connected to form a band.

FIG. 2 is an exploded perspective view showing a band piece structure according to another embodiment of the present invention. The piece shown in FIG. 2 is also composed of a front piece 5 and a back piece 6.

The front piece 5 is made of stainless steel, and has a groove cut out in a cylindrical shape on the back side thereof, with both ends and the back side in the longitudinal direction of the band being opened and the inside being wider than the opening on the back side. A back side fitting portion 5c composed of 5a and 5b is provided. Further, in the band width direction end of the back surface of the front piece 5 in this embodiment, step portions 5d and 5e formed by cutting off the corners are provided.

The back piece 6 is made of a metal material that does not contain nickel, such as titanium, titanium alloy, or ceramic, and the front side thereof has a cylindrical shape with a tip adapted to the grooves 5 a and 5 b of the front piece 5. A front side fitting portion 6c including the protruding portions 6a and 6b is formed. Further, the ends 6d and 6e in the band width direction of the back piece 6 in this embodiment are bent so as to fit the step portions 5d and 5e of the front piece 5.

The front piece 5 and the back piece 6 in this embodiment are integrated by inserting the protrusions 6a and 6b of the back piece 6 into the grooves 5a and 5b of the front piece 5 in the direction of the arrow in the figure. . The front piece 5 and the back piece 6 in this piece are joined and integrated by simple mechanical fitting, adhesion, or the like.

In the embodiment shown in FIG. 2, a wire or the like is passed through the protrusions 6a and 6b of the back piece 6 to connect a plurality of pieces having the same structure to form a band.

[0017]

[Effect of device]

 According to the present invention, since the metal containing nickel is not used in the portion that comes into contact with the user's skin, the user does not have allergic symptoms.

Further, since a stainless steel material is used on the surface side of the piece, various surface treatments and finishes can be easily performed, appearance quality can be improved, and manufacturing cost can be reduced.

Furthermore, since a certain amount of weight can be obtained, it can be easily wrapped around the arm, and the familiarity with the arm can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a band piece structure according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a band piece structure according to another embodiment of the present invention.

[Explanation of symbols]

 1, 5 Front piece 2, 6 Back piece 1h, 5c Back side fitting section 2h, 6c Front side fitting section 1f, 1g, 5a, 5b Groove 2f, 2g, 6a, 6b Projecting section

Claims (1)

[Scope of utility model registration request] 1. A front piece which is made of stainless steel and has a back side fitting section on the back side, and a front side fitting section which is made of a material not containing nickel and which is fitted to the back side fitting section of the front piece. A band piece structure comprising a back piece and a back piece.