JPH0219052Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This invention concerns a watch band.

"Conventional technology and its problems" Conventionally, metal, leather, cloth, plastic, etc. have been used as materials for watch bands, but in recent years, ceramics have been attracting attention as a new material in various industrial fields. It is being considered that this ceramic can be used as a piece for a watch band.

However, in order to construct a watch band, it is necessary to provide a pin insertion hole for inserting a connecting pin, but when drilling holes in ceramic, there is a problem that cracks are likely to occur. be.

"Purpose of the invention and means for achieving the same" The purpose of the present invention is to effectively solve problems such as cracking and provide a watch band made of a sintered body such as ceramic. In order to achieve this, a groove-shaped recess along the length direction of the band is provided in the main piece made of a sintered body, and a pair of abutment pieces are disposed facing each other between the inner wall surfaces of the recess, and between these abutment pieces, A connecting piece is rotatably connected by a pin, and the abutment piece has a flat plate part that comes into contact with the inner wall surface of the recessed part, and a pair of connecting pieces that are locked in grooves provided at both ends of the main piece. It is characterized in that the pin is integrally formed with the arm, and a hole into which the head of the pin is inserted is provided in the flat plate part.

"Embodiment" An embodiment of the watch band of the present invention will be described based on FIGS. 1 to 5.
Main piece 1 made of a sintered body of ceramic, cemented carbide, etc.
is locked to the main piece 1 and the pin insertion hole 2
The connecting piece 5 is rotatably connected to the corresponding piece 3 by a pin 4 such as a spring bar.

The main piece 1 is formed into a square shape as a whole, and its surface is curved into a "semi-cylindrical shape". A groove-shaped depression 6 is provided on the back side of the main piece 1 along the length direction of the watch band, and grooves at both ends are in communication with the depression 6 and extend to the ends in the width direction. 7 are formed respectively.

The abutment piece 3 is made of stainless steel or the like and has a flat plate portion 8 that is brought into contact with the inner wall surface of the recessed portion 6 of the main piece 1.
and a pair of arms 9 that are locked in the grooves 7 of the main piece 1 are integrally formed. There are two installed. A pair of corresponding pieces 3 are disposed between the inner wall surfaces of the recessed portion 6 of the main piece 1 so as to face each other.

The connecting piece 5 is formed so that the widthwise dimension of the band is interposed between the abutment pieces 3 attached to the main piece 1, and both ends of a flat plate made of stainless steel or the like are folded back by 180 degrees. As a result, two cylindrical pin insertion portions 10 extending in the width direction are integrally formed.

The case of assembling such a watch band will be explained with reference to FIG. By arranging the abutment pieces 3 to face each other between the inner wall surfaces of the main piece 1, the movement of the abutment pieces 3 outward in the thickness direction and the width direction of the main piece 1 is restricted. Then, the pin 4 is inserted into one of the pin insertion portions 10 of the connecting piece 5 as shown by the arrow B, and is inserted between the contact pieces 3 as shown by the arrow C. By inserting and locking into the pin insertion hole 2 on the tip side of the abutting piece 3, the main piece 1, the abutting piece 3, and the connecting piece 5 are integrated. Thereafter, the pin 4 is inserted into the pin insertion portion 10 on the tip side of the connecting piece 5 which has been integrated with another main piece 1 in the same manner as shown by arrow D, and the above-mentioned Cover the rear end side of the main piece 1 with the connecting piece 5 attached as shown in the arrow H, and lock the head of the pin 4 in the pin insertion hole 2 on the rear end side of the abutment piece 3 in the inserted state. As a result, they are connected to each other as shown in FIGS. 1 to 4. Note that the ends of the interconnected pieces 1, 3, and 5 are provided with connecting pieces and fasteners for attachment to the watch body, resulting in a completed watch band.

In other words, a watch band having such a structure is created by roughly forming the depressions 6 and grooves 7 of the main piece 1 during sintering, and finishing them by grinding or polishing using a grindstone (so-called drying). In addition, since the pin insertion hole 2, which is difficult to form in the main piece 1, is formed in the stopper piece 3 made of stainless steel or the like, the hole can be easily removed. This makes it possible to facilitate the opening process.

In addition, when the connected state shown in FIGS. 1 to 4 is established, the adjacent main pieces 1 form a hinge structure with the pins 4, so that the chain lines X and Y shown in FIG.
As shown in the figure, it can be curved, making it easier to fit around the wrist.

It is also possible to change the color of the watch band by increasing the distance between the main pieces 1 and having the connecting piece 5 or arm 9 of the stopper piece 3, which is finished with a golden surface or the like, facing between them. .

"Effects of the Invention" As explained above, according to the present invention, it is possible to provide a watch band made of a new material made of a sintered body, and the recess and groove of the main bridge can be formed by so-called wipe processing. This prevents the occurrence of cracks in the sintered body, and since the pin insertion hole is drilled in the stopper, which can be made of stainless steel, etc., the hole drilling process is made easier and productivity is improved. It has the following effects:

[Brief explanation of drawings]

Fig. 1 is a partially omitted plan view showing an embodiment of the watch band of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a bottom view thereof, and Fig. 4 is shown along the - line in Fig. 1. FIG. 5 is an enlarged sectional view with a portion omitted, and FIG. 5 is an exploded perspective view showing the structure of the main part. 1... Main piece, 2... Pin insertion hole, 3... Patching piece, 4... Pin, 5... Connecting piece, 6... Recess, 7
...Groove, 8...Flat plate part, 9...Arm, 10...
Pin insertion part.

Claims (1)

[Scope of utility model registration request] A groove-shaped recess along the length direction of the band is provided in the main piece made of a sintered body, a pair of backing pieces are arranged facing each other between the inner wall surfaces of the recess, and a connecting piece is placed between these backing pieces. Rotatably connected by a pin,
The abutment piece is integrally formed with a flat plate part that comes into contact with the inner wall surface of the recessed part, and a pair of arms that are locked in grooves provided at both ends of the main piece. A watch band characterized in that a hole is provided into which the head of the pin is inserted.