JPS5811205Y2 - mobile watch band - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a band for a portable watch, and more specifically, to a structure for connecting each piece in a band for a portable watch.

A conventional portable watch band of this type (hereinafter referred to as a band) is shown in FIG.

To explain in detail according to the drawings, 1 is a side, and a lug-shaped #4.2 having a hole 2a is formed in a part thereof.

In addition, 3 to 12 are pieces of different types, and these pieces 3 to 12 are connected to screw pins 13.14 and driving pins 15.
(or split pins) to form a band.

In this case, a plurality of pieces 5 to 12, driving pins 15, and screw pins 14 are used in order to form the necessary band length.

Reference numeral 16 denotes a buckle, which is connected to the pieces 9 and 10 by screw pins 14.

However, in such a configuration, a total of 13 types of component parts, including 10 types of pieces from piece 3 to piece 12, screw pins 13, 14, and driving pins 15, are required, so the machining surface and assembly work of each component individually is required. This would be extremely disadvantageous in both aspects.

In addition, in the case of a plated band, it is usually difficult to manage the tightening allowance of the driving pin and the threading condition of the screw pin after plating, so after driving or screwing these together, the above-mentioned pieces 3 to 12 and the screw pin 14. Driving 1
5 are all assembled and then plated, but in this condition, the screw pins 14, drive pins 15. The screw pin 14 provided on each frame. The coverage of the plating on the inside of the hole for inserting the driving pin 15 and on the contact surfaces of each piece becomes poor, resulting in a serious problem of band corrosion due to sweat etc. when the band is actually carried. There is a risk that this will happen.

In addition to these problems, there is also the problem of loosening of the screw pin, and when a split pin is used instead, the problem of the split pin becoming flattened occurs.

In other words, the band for a mobile watch must be as thin as possible and the band width must be narrow.
The diameter of the screw used for this, the screwing distance, and the pin diameter and fitting distance of the pin must be extremely small.

For this reason, the above-mentioned problems inevitably occur.

In conventional bands, if you uniformly use adjustment screws or split pins throughout the band body, you can reduce the number of pieces.
Although the length of the band can be adjusted over the entire band, in reality, due to the drawbacks mentioned above, only the minimum number of screw pins and split pins can be used.

For this reason, the range of band length adjustment is naturally limited in practice.

The present invention was devised in view of these points, and aims to eliminate the various shortcomings of the conventional bands mentioned above.

In other words, the gist of the present invention is to configure the band with only two types of members, one type of link and one type of connecting pin, and to enable easy and reliable adjustment of the length of the band over the entire area of the band. The point is that

Bamboo shoots will be explained in detail with reference to FIGS. 2 to 9.

FIG. 2 is a cross-sectional view of a main part showing a state before the band is connected according to an embodiment of the present invention. In the figure, 1 is a side, and a lug-shaped M2 having a gun hole 2a is formed in a part of the side. It's important.

Reference numeral 17 denotes a piece, in which two connecting through holes 17C each having a cross section of ``shaped'' are formed at a predetermined pitch by connecting a small diameter hole 17a and an elliptical hole 17b whose short axis is the same as the small diameter 17a in the direction of the hole center. Formation is mandatory.

Three pieces 17 are arranged in parallel in the width direction of the band with the pieces on both sides shifted by half a pitch from the middle piece, and similarly in the length direction, the number is equal to the predetermined length of the band. One to several dozen are arranged in parallel.

In this state, the three pieces 17 arranged in parallel in the width direction have their small diameter holes 17, although the pitch is shifted by half a pitch.
The hole centers of H are aligned, and connecting pin 1 is connected thereto.
8 has been inserted.

In this example, only one frame of 17° is used.
There are only types.

The connecting pin 18 has a groove 18a near both ends thereof, the size of which is set so as to tightly fit into the step 17d in the through hole 17C of the piece 17, and a groove 18a at one end thereof for positioning. A groove 18b is provided, and its outer diameter is set so that when inserted into the small diameter hole 17a of the piece 17, a slight gap is created between the two.

16 is a buckle, and has a concave groove 16 for fitting with the piece 17.
Similarly to a, a through hole 16b and a screw hole 16c for connecting with the piece 17 are formed by penetrating into the groove 16a from the outside.

The through hole 16b and the screw hole 16C are connected to the piece 17 placed in the center, and the pieces 17, which are arranged in parallel on both sides of the piece 17 with a half-pitch shift, are connected to the buckle 1.
The top 16d of the top 6 is moved in one direction to the side, and the top 1
The positions are determined in advance so that the groove 18a of the connecting pin 18 and the groove 17d of the connecting pin 18 fit tightly together.

FIG. 3 is a sectional view of the main part after the band connection is completed according to the embodiment of the present invention explained in FIG.
Each piece is connected to each other and to side 1 by a tight fit within 8a.

In addition, the buckle 16 has a screw pin 1 attached to the last piece 17 on the long side 1 of the central row among the group of pieces 17 arranged in three rows.
During this connection, the tops 17 are connected by the tops 16d, and the rows on both sides of the three rows of pieces 17 are moved to side 1, and the pieces 17 are connected to each other and side 1 as described above. This makes it possible to connect with

Because of the above configuration, unless the screw pin 14 is removed and the connection between the buckle 16 and the last piece 17 in the center row is released, the connection between the pieces 17 and the band and the side 1 cannot be disconnected. Can not.

This means that the piece 17 can be removed as many times as you like without having to remove it, as long as the buckle 16 is uncoupled.

Therefore, the length of the band can be adjusted freely to suit the wearer, and in this respect as well, the band is much more transparent than conventional bands.

FIG. 4 is a sectional view of the main part of the frame 17, and shows the small diameter hole 17a.
This is a cross-sectional view of an elliptical hole 17b whose short axis is the same diameter as this small hole 17a, with the hole center shifted and communicated in the direction of the hole center. be.

In addition, inside the through hole 17C, there are a small diameter hole 17a and an elliptical hole 17b.
The stepped portion 17d is formed by shifting the hole center and communicating in the direction of the hole center.

FIG. 5 is a side view of the piece 17 as seen from the hole center direction, in which 17a is a small diameter hole, 17b is an elliptical hole, and 17C is a through hole.

6 and 7 are a plan view and a sectional view taken along the line A-A of the pin, in which grooves 18a are formed near both ends, and grooves 18b are formed at either end. is the reason for its formation.

Since the present invention has the above configuration, only one type of piece is used, and the only other piece is a connecting pin, so it is significantly advantageous compared to conventional bands in terms of both processing and assembly. becomes.

In addition, in terms of quality, the band itself uses screw pins,
Since no driving pins or cotter pins are used, problems such as loosening of screws, loosening of driving pins, and flattening of cotter pins do not occur.

The effect in this respect is also significant.

Furthermore, in terms of plating quality, for the same reason as mentioned above, it is possible to perform separate plating, that is, plating each component individually, and this has a significant effect in terms of band corrosion.

In addition to this, as mentioned above, it has a great effect in terms of adjusting the length of the band.

In addition, FIG. 8 and FIG. 9 are other embodiments of the present invention,
The difference from the previous embodiment is that the pieces in the center row are replaced with different types in order to make the width of the band narrower and to provide more variety in design.

This frame 19 is obtained by removing the oval hole 17b from the frame 17, so that the frame width can be made narrower by this amount.

Therefore, the number of types of frames increases by one, but in return, it is possible to reduce the bandwidth and provide more variety in design.

FIG. 8 is a cross-sectional view of the main part showing the state before the connection is completed, and FIG. 9 is a sectional view of the main part showing the state after the connection is completed, and everything except the above-mentioned frame 19 is completely the same as the above embodiment.

As described above, the present invention is an extremely effective and simple invention that has the effect of eliminating all the drawbacks of conventional bands.

[Brief explanation of drawings]

Fig. 1: A sectional view of the main part of a conventional band, Fig. 2: A sectional view of the main part of the band according to the embodiment of the present invention before connection, Fig. 3: ...A cross-sectional view of the main parts of the band after connection according to the embodiment of the present invention, Fig. 4...A cross-sectional view of the main parts of the band of the present invention, Fig. 5...The present invention A side view of the top of the band of the present invention, Fig. 6... A plan view of the pin of the band of the present invention, Fig. 7... A sectional view of the pin of the band of the present invention, Fig. 8. . . . A sectional view of the main part of a band according to another embodiment of the present invention before connection, FIG. 9 . . . A sectional view of the main part after connection. 1... side, 2... scissors, 3-12...
... Top, 13.14 ... Screw pin, 15.
... Drive pin, 16 ... Buckle, 17 ...
...The piece of this invention, 17 a... Small diameter hole,
17b...Oval hole, 17C...Through hole, 18...Pin of the present invention, 18a...
Groove, 19... A piece of another embodiment of the present invention.

Claims (1)

[Scope of utility model registration request] Several pieces having a connecting hole in which a small diameter hole and a large diameter hole or an elliptical hole whose short diameter is larger than or the same diameter as the small diameter hole are communicated in the direction of the hole center are arranged in a band shape, and the pieces are arranged in a strip. After inserting a pin having two or more grooves into the connecting hole, the relative positions of each piece are shifted, and this state is maintained by connecting and holding the band connecting part of the buckle and the last piece of the band with a screw pin. A mobile watch band characterized by making it possible to connect the frames and connect them to the sides.