JPS6144648Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a length adjustment mechanism for a wristwatch band that connects edge pieces via a middle piece.
Furthermore, it was designed to make the band more sophisticated. A through hole is provided in the center of the bushing that fits on the outside of the pin insertion hole of the edge piece, making it easy to remove the middle piece, making it possible to easily adjust the length of the band, and further increasing the design value. It is elevated.

In recent years, bands have gradually become more high-end. This is due to the fact that with the development of electronic watches, there is almost no difference between the superiority and inferiority of the performance of the watch itself, and the value of a watch is now determined by its materials, design, etc. be.

Conventionally, a length adjustment mechanism for a wristwatch band that connects pieces has been used to adjust the length of two edge pieces 1, 1 and 2 using two adjustment screws 9 and 9', as shown in FIG.
1' are connected and when adjusting the length of the band, remove the adjusting screws 9, 9' to separate the edge pieces 1, 1' and the middle pieces 4, 4', and then It was a mechanism that adjusted by increasing or decreasing 1'.

However, such a length adjustment mechanism is limited to the middle piece 4,
It is necessary to provide a screw (female) in the small hole drilled in 4', and also screws (male) 10, 10' to be screwed into the aforementioned screws (female) at the tips of adjustment screws 9, 9'. This required complicated processes such as setting up a

In addition, screws are extremely small and require high precision, which inevitably leads to high costs.

Furthermore, the screw loosened during use and the adjustment screw 9,
9' may fall off, and adjusting screws 9,
Since 9' is extremely small, a special fixture (driver) was required for repair.

Furthermore, as shown in Fig. 2, the head of the attached adjustment screw 9 is visible from the side, which reduces the design value of the Mukuband, which emphasizes design and aims to make it more luxurious, and spoils its high-class image. Ta.

Therefore, in the present invention, a concave portion is formed on both sides of the edge piece, a pin insertion hole is drilled through each of the wings that sandwich the concave portion, and two parallel through holes are bored in the concave portion. Inside this through hole is a coil spring whose middle part is slightly longer than the through hole, and the coil springs have substantially U-shaped pins 6a, 6b, 6c, 6 from both ends, respectively.
d, insert the middle piece into which the connecting pin that can freely come out and go out is inserted, fit the bush with a hole through the center into the outer opening of the pin insertion hole, and seal it. By pressing the connecting pin with a wire-like rod through the hole and pressing the middle piece, the edge piece and the middle piece are separated, and the length of the band can be adjusted by adding or subtracting the necessary edge pieces. In addition, all that is required is a hole for pressing and operating the connecting pin, and it does not leave any traces of the pin insertion hole or the head of the adjustment connecting pin on the side of the band, making it suitable for a high-quality band. can. The drawings will be explained in detail below.

1 and 1' are edge pieces, and as shown in FIG. 6, recesses 2a, 2b, 2c, and 2d are formed on both sides, and middle pieces 4 and 4' are fitted into these recesses 2a, 2b, 2c, and 2d. Insert.

Reference numerals 3a, 3b, 3c, and 3d are pin insertion holes that are bored between the recesses 2a, 2b, 2c, and 2d of the edge pieces 1 and 1', and a bushing is inserted into the outer opening as shown in FIG. 7 and 7' are fitted.

4 and 4' are two parallel through holes 5a in the middle piece,
5b, 5c, and 5d, and these through holes 5a, 5
Through holes 5a, 5b, 5c,
It is slightly longer than 5d, and has a coil spring in the middle, and the coil springs have approximately U-shaped pins 6a, 6 from both ends.
b, 6c, and 6d, and the removable connecting pins 6a, 6b, 6c, and 6d are inserted. 6
Numerals a and 6b are adjustment connecting pins for adjusting the length of the band.

7 and 7' are bushes that fit into the outer openings of the pin insertion holes 3a, 3b, 3c, and 3d provided in the edge pieces 1 and 1', and which of the two edge pieces 1 and 1' are connected. A bush 7' having a hole 8 that passes through the center is fitted into the openings of the pin insertion holes 3a, 3b, 3c, and 3d, and the length of the band is determined using this hole 8. Make adjustments.

The edge pieces 1, 1' and the middle piece 4 formed in this way,
4' is the middle piece 4, as shown in Figures 7 and 8.
Connecting pins 6a, 6b, 6c, 6 inserted into 4'
The concave portions 2a, 2b, 2c, 2d are pressed into the through holes 5a, 5b, 5c, 5d so that both ends of d do not protrude beyond the through holes 5a, 5b, 5c, 5d.
Insert into the pin insertion holes 3a, 3b, 3c, 3d.
The connecting pins 6a, 6b, 6c, 6 pressed when the connecting pins 6a, 6b, 6c, 6d match
One end of d protrudes due to the elasticity of the spring and enters the pin insertion hole 3.
A, 3b, 3c, and 3d are connected by being inserted thereinto.

The band is braided by such a connecting method, and the pin insertion holes 5a and 5b into which the bush 7' having the hole 8 that penetrates through the center is fitted are as shown in FIG. Since there are several locations, the length of the band can be freely adjusted as necessary, so it can be easily braided even on wrists that differ from person to person.

To adjust the length of the band, insert a thin wire-like object through the hole 8 of the bush 7', press the adjustment connecting pins 6a, 6b, and at the same time press the middle pieces 4, 4'.
By pressing from above or below, edge piece 1,
1' and the middle pieces 4, 4' are separated, so after removing the required number of edge pieces 1, 1' by the same means, the adjustment connecting pins 6a, 6b are attached to the middle pieces 4, 4' as described above.
When the edge piece 1 is pushed into the through holes 5a and 5b of
When inserted into the recesses 2a, 2b, the through holes 5a,
5b and the pin insertion holes 3a, 3b are aligned, the middle pieces 4, 4' and the edge piece 1 are connected.

In this way, after the process of connecting the edge pieces 1, 1' through the middle pieces 4, 4' is completed, or as a single piece, one band and the sides of the edge pieces 1, 1' are polished by a polishing machine. The part is polished to a specified width, but during this finishing process, the embedded bush 7 is polished as shown in Figure 9.
is polished using a polishing machine so as not to leave any traces.
The bush 7' is polished leaving only a through hole 8.

In recent years, the popularity of watches, especially wristwatches, has been high, and with the advent of electronic mechanisms, the performance of watches is no longer superior or inferior, so the value of a watch has come to be influenced by its material, design, etc.

Therefore, the bands that accompany watches today are becoming increasingly sophisticated in terms of materials and designs. This invention, which facilitates adjustment, uses a connecting pin instead of the conventional adjustment screw to adjust the length, the pin insertion hole is closed with a bushing, and the side of the band has a design suitable for a luxury watch. be.

As described above, according to the present invention, by inserting a simple device (such as a needle) into the hole through which the button is inserted, the middle bridge can be removed and the length of the band can be easily adjusted even for wrists that vary depending on individual differences. It can be braided, and by using the connecting pin that is connected to the coil spring by pressing the coil spring from both ends in a substantially U-shape and making it possible to move in and out, it is possible to pass through the holes of the edge piece and the middle piece differently. Even if this occurs, the characteristics of the coil springs can reduce the amount of time required to assemble them, so they can be connected easily and at low cost.

Therefore, it is now possible to create a connecting mechanism in which finishing work is performed after completing one band in the past, and a connecting mechanism in which the band is assembled after finishing each piece, and the connecting mechanism is completed as one band. It became.

Furthermore, since the head of the adjustment connecting pin is not visible from the side of the band, the design value is further increased and one of the requirements for a solid band for a luxury wristwatch is satisfied.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing the structure of the connecting part of a conventional band, Figure 2 is a side view of the conventional band after connection, Figure 3 is a side view of the present invention after connection, and Figure 4 is the book. FIG. 5 is a side view of the band showing the number and position of the connecting portions; FIG. 6 is a partially exploded perspective view of the wristband for wristwatches; FIGS. 7 and 8. 9 is a perspective view of an embodiment of a wristband for wristwatches, FIG. 9 is a side view after conventional side polishing, FIG. 10 is a side view after side polishing according to the present invention, and FIG. 11 is a side view after polishing according to the present invention. FIG. 1, 1' are edge pieces, 2a, 2b, 2c, 2d are recessed parts, 3a, 3b, 3c, 3d are pin insertion holes,
4, 4' are middle pieces, 5a, 5b, 5c, 5d are through holes, 6a, 6b, 6c, 6d are connecting pins, 7,
7' is a bush, 8 is a through hole, 9 and 9' are adjustment pins, and 10 and 10' are threaded parts.

Claims (1)

[Scope of utility model registration request] A middle piece having two parallel through holes is inserted into the recess of the edge piece which has a recess on both sides and has a pin insertion hole penetrating through both wings sandwiching the recess, A large number of edge pieces and middle pieces are connected, each is pressed by a substantially U-shaped pin from both ends via a coil spring in the middle, and the connecting pins, which can come out and go freely, are inserted into the middle pieces from both sides, and the pins of the edge pieces are inserted. In the case of a wristband for a wristwatch, which is constructed by interlocking a connecting pin in a hole and braiding it, and fitting a bush having a hole through the center into the outer opening of the pin insertion hole, the through-hole The length of the band can be easily adjusted by making it possible to remove the middle piece by simply pressing the connecting pin, and the head of the adjusting connecting pin is not visible from the side. Length adjustment mechanism for wristwatch bands.