JPH0824015A - Connecting structure of watch case and band - Google Patents

Abstract

PURPOSE:To provide a connecting structure of a watch case and band simply producible and in which surface finishing of respective parts an be changed. CONSTITUTION:This connecting structure consists of a pair of leg parts 2 formed to the watch case 1, an ornamental member 4 inserted between these leg parts 2, a front barrel 6 of the band 5 engaged with the outer side of the leg parts 2, connecting pins 9 for connecting the ornamental member 4 and the front barrel 6 to the leg parts 2 of the watch case 1 and split pipes 10 which are fitted to both ends of the connecting pins 9 and are force fitted to the front barrel 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for connecting a band to a watch case, and particularly to a watch case made of metal.
The present invention relates to a connection structure between a watch case and a band, each of which is finished on the surface of the band and the surface of the band.

[0002]

2. Description of the Related Art Conventionally, a pair of leg portions are formed in a watch case, a decorative piece is inserted between them, and a pair of connecting projections of a tip piece at a band end is fitted on the outside of the leg portion to form a leg portion and a decorative piece. A structure is provided in which the bridge and the connecting protrusion are connected by a spring rod. In such a timepiece, for example, the surface of a stainless steel watch case or the surface of a bezel can be mirror-finished, and the decorative piece and the band can be subjected to another finishing process, for example, a hairline.

A timepiece having such a structure will be described with reference to FIG. The side surface of the watch case 1 and the surface of the bezel 1b are mirror-finished, the surfaces of the decorative piece 4 and the band 5 are hairline-finished, and the respective parts are connected by spring bars.

[0004]

In such a connection structure, the movable pins 6d at both ends of the spring rod must be formed to have a length substantially equal to the width of the protrusion 6b of the tip piece 6. Protrusion 6
Since the width of b is relatively large, the length of the pin also becomes long. Since this pin has to be pushed into the body of the spring rod, the length of the body is also long. Therefore, a band having a narrow width cannot be attached to the timepiece having such a structure.

Further, in this timepiece, the number of connecting parts is large and the structure thereof is complicated. Further, there is a drawback that the number of processing steps for each member is large and the processing cost is high.

The present invention has been made in view of the above points, and it is possible to use a band having a narrow width, and a metal watch case and a band having different surface finishings are simple in structure. An object of the present invention is to provide a connecting structure for a watch case and a band, which can be easily connected, can reduce the processing cost, and can improve the design variation of the watch and the band.

[0007]

In order to achieve the above object, the present invention provides a watch case in a band connecting structure composed of a metal watch case and a plurality of metal pieces. The pair of legs, the decorative member made of a metal plate inserted between the legs, the front piece of the band engaged with the outside of the leg, and the decorative member and the front piece. -The connecting pin for connecting to the leg portion of the sleeve, and the decorative member is formed with a portion for preventing rotation with respect to the connecting pin.

[0008]

According to the above construction, the decorative member provided separately is engaged between the leg portions, the tip piece is engaged with the outside of the leg portion, and the connection pin fitted with the split pipe is press-fitted into the tip piece. Secure and connect the band to the watch case.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a part of a watch case, a decorative member and a band according to the present invention, FIG. 2 is a perspective view showing a state in which the band is attached to a watch case, and FIG. 3 is a plan view thereof.

The watch case 1 comprises a body 1a and a bezel 1b, and a pair of leg portions 2 are integrally projected on the band connection side of the body 1a. The leg portions 2 are provided with pin insertion holes 2a for connecting pins 9, respectively. The surface of the watch case 1 including the legs 2 is mirror-finished.

In FIG. 2, the decorative piece 4 described as a conventional example is the decorative member 4 made of sheet metal in the present invention. As shown in FIG. 4, the decorative member 4 is formed by punching and bending a metal plate and has a U-shaped cross section including an upper plate 4a, a lower plate 4b, and a side plate 4e, and its width is a leg portion. It is slightly smaller than the width between the two. The upper plate 4a is inclined upwards corresponding to the upper surface of the leg portion 2, and the tip edge portion 4f thereof is formed.
Is curved corresponding to the side shape of the bezel 1b of the watch case 1 so as to come into contact with the side surface. The surface of the upper plate 4a is formed with a hairline pattern composed of a large number of parallel filaments. The central portion of the lower plate 4b is cut and bent upward, and the upper end of the lower plate 4b is bent inward so that the winding portion 4c is bent.
And has a pair of protrusions 4d protruding in the width direction of the band.

The band 5 is formed by connecting a plurality of metal pieces, and the surface is hairline-finished, and the H-shaped piece 6 having notches 6a on both sides in the longitudinal direction of the band and the surface are hairline-finished. , Notch 6a between adjacent pieces 6
And a pair of ring pieces 8 which have the same mirror finish as the bezel on the surface and which are engaged between the piece 6 and the middle piece 7.
Consists of The tip piece 6 at the tip has a winding portion 6c formed below the protrusion 6b.

This structure is connected by a connecting member other than the spring rod, which is a split pipe connecting member in this embodiment. The connecting member includes a split pipe 10 and a connecting pin 9, and the pair of split pipes 10 are fitted to both ends of the connecting pin 9.

To connect the watch band 5 to the watch case 1, first, as shown in FIG. 5, the decorative member 4 is arranged so that the edge 4f of the upper plate 4a abuts the side surface of the bezel 1b and the lower plate 4b. The protrusions 4d are inserted between the legs 2 of the body 1a so that the protrusions 4d contact the lower surfaces of the legs 2, respectively. Next, the protrusion 6b of the front piece 6 is engaged with the outside of the leg 2 to hold the decorative member 4 between the legs 2. The split pipe 10 is fitted to one end of the connection pin 9, and the other end is provided with one winding portion 6c of the front piece 6, the pin hole 2a of the leg portion 2, the winding portion 4c of the decorative member 4, and the other leg portion 2. The pin hole 2a and the other winding portion 6c of the front piece 6 are sequentially inserted. At this time, the split pipe 10 fitted to the pin 9 is press-fitted into the winding portion 6c of the front piece 6, and the pin 9 is held by the winding portion 4c. Next, the other split pipe 10 is inserted into the other winding portion 6c and fitted to the other end of the pin 9. Therefore, the connection pin 9 is press-fitted and fixed to the front piece 6 by the split pipe 10, and the watch band 5 is connected to the watch case 1. In this state, in FIG. 5, the decorative member 4 cannot rotate in the clockwise direction about the pin 9 because the protrusion 4d contacts the lower side of the leg 2. Further, since the winding portion 6c is in contact with the upper portion of the pin 9, it cannot rotate in the counterclockwise direction, and the decorative member 4 is completely fixed.

FIG. 6 shows another embodiment of the present invention. On the band connection side of the body 21a of the rectangular watch case 21, a pair of leg portions 22 to which the decorative members 24 are respectively engaged are provided in two protruding positions. The front piece 26 of the band 25 has two notches 25a corresponding to the leg portions 22, and the middle piece 27 and the ring piece 2 are provided.
And 8 are provided. The structure of each part and the connection method are the same as in the first embodiment described above.

Although the legs are formed on the body in the above embodiment, the legs may be provided on the bezel of the watch case.

[0017]

As is apparent from the above description, according to the present invention, since the decorative member is made of the metal plate, the manufacturing is simplified and the processing cost can be reduced. In addition, each part can be processed with different surface finish, and the design variation of the watch case and band is expanded.

Further, since the connection can be made without using a spring rod,
A narrow band can be attached. When connecting with a conventional spring rod, the width of the decorative member is at least 6 mm
However, in the present invention, a decorative member having a width smaller than that can be used.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a watch case, a decorative member, and a band according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a connection state between a watch case and a band.

FIG. 3 is a plan view showing a connection state between a watch case and a band.

FIG. 4 is a perspective view of a decorative member.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a plan view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Watch Case 1a Body 1b Bezel 2 Legs 2a Pin Insertion Hole 4 Decorative Member 4a Upper Plate 4b Lower Plate 4c Winding Part 4d Projection 4e Side Plate 4f Edge 5 Clock Band 6 Tip 6a Cutout 6b Projection 6c Winding part 7 Middle piece 8 Ring piece 9 Connection pin 10 Split pipe

Claims (3)

[Claims] 1. In a band connecting structure composed of a metal watch case and a plurality of metal pieces, a pair of leg portions formed on the watch case and inserted between the leg portions. A decorative member made of a metal plate, a front piece of the band engaged with the outside of the leg portion, and a connecting pin for connecting the decorative member and the front piece to the leg portion of the watch case, A structure for connecting a watch case and a band, wherein the decorative member is formed with a portion for preventing the connection pin from rotating. 2. The connection between the watch case and the band according to claim 1, wherein the rotation-preventing portion includes a winding portion that engages with the connection pin and a protrusion that abuts the lower surface of the leg portion. Construction. 3. The connecting structure for a watch case and a band according to claim 1, wherein the connecting pin comprises a pin and a split pipe fitted to both ends of the pin and press-fitted into a front piece. .