JP3873147B2 - Band structure and band manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a band structure and a manufacturing method in which band pieces are connected by pins.
[0002]
[Prior art]
FIG. 8 is an explanatory diagram showing a band structure in which the middle piece 60 and the outer pieces 70, 70 are connected by pins 80 to constitute a band 90. The middle piece 60, the outer pieces 70 and 70, and the pin 80 are made of metal, and thus the band 90 is a metal band. By inserting the pin 80 into the pin hole 61 provided in the middle piece 60 and inserting both ends 81 and 81 of the pin 80 protruding from the pin hole 61 into the pin holes 71 and 71 of the outer pieces 70 and 70, The piece 60 and the outer pieces 70 and 70 are connected.
[0003]
At this time, both end portions 81, 81 of the pin 80 are fixed to the pin holes 71, 71 of the outer pieces 70, 70, so that the outer pieces 70, 70 sandwich the middle piece 60. , 70 is maintained. Conventionally, the fixing between the both end portions 81, 81 of the pin 80 and the pin holes 71, 71 of the outer piece 70, 70 is achieved by the stress of the pin holes 71, 71 applied to the both end portions 81, 81.
[0004]
That is, when both end portions 81 and 81 are inserted into the pin holes 71 and 71 without making the hole diameters of the pin holes 71 and 71 larger than the pin diameter of the pin 80, the end portions 81 and 81 are stressed. It is a thing. If this stress alone is not sufficient, the both ends 81 and 81 are heated while being inserted into the pin holes 71 and 71, and the outer periphery of both ends 81 and 81 and the inner walls of the pin holes 71 and 71 are welded. Processing (solid phase binding) was performed.
[0005]
[Problems to be solved by the invention]
However, under this structure, the middle piece 60 and the outer pieces 70, 70 are connected only by the pin 80, and the pin 80 is prevented from buckling with respect to the pressure input, and this connection is stabilized. In order to do so, the pin 80 needs to be thick. Further, in order to give a sufficient stress to the pin 80 inserted into the pin holes 71, 71 of the outer pieces 70, 70, the thickness a of the outer piece is increased, and further, the pin holes 71, which give stress to the inserted pin 80, It is necessary to increase the width c of the outer frame in order to sufficiently obtain the length 71 (clamping margin) b. For this reason, there were significant restrictions in designing the band.
[0006]
On the other hand, the design is now diversified, and a thin and narrow band design may be required. Accordingly, an object of the present invention is to provide a band structure with improved design and a manufacturing method therefor without reducing the design constraints without reducing the quality of a conventional band.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a band structure with a band piece having a pin hole and capable of constituting a band by connecting with the pin, and does not fix the pin and insert the pin. one pin hole adjacent band piece is not welded to the pin by plating applied to the pin surface in Rukoto comprises a pipe that covers the pin, the pin hole of the other adjacent band piece for fixing the pin in order to Is a band structure that is welded to the pin by plating applied to the surface of the pin.
[0008]
Here, the “band piece” is a piece for constituting a band. Any piece that has a pin hole and can form a band by being connected by a pin includes any shape. It does not matter whether the band is composed of one type of band piece such as a substantially convex shape or a case where the band is composed of a plurality of types such as a middle piece and an outer piece.
The “band” may be used for any purpose. You may use it for a part of a watch band and a decoration. It can also be used for belt-like fasteners.
[0009]
Further, the invention according to claim 2 is a method of manufacturing a band by a band piece having a pin hole and capable of constituting a band by connecting with the pin, and for inserting the pin without fixing the pin. While providing a pipe covering the pin in the pin hole of one adjacent band piece, connecting the band piece through the pin to the pin hole of each band piece to form a band, and a heating step for heating the formed band The pin hole of one adjacent band piece for allowing the pin to pass therethrough is not fixed by heat, and is welded to the pin by plating applied to the surface of the pin by providing a pipe covering the pin Sarezu, pin holes of the other adjacent band piece for fixing the pin, the band manufacturing side, characterized in that it is welded with the pin by plating applied to the surface of the pin It is.
[0010]
[Action]
According to the first aspect of the present invention, the pin hole of the band piece for allowing the pin to pass therethrough includes the pipe covering the pin without fixing the pin, so that the inserted pin is covered with the pipe. The pin hole of the band piece to which the pin is fixed is welded to the pin by plating applied to the surface of the pin or / and the inner wall of the pin hole, and the pin and the pin hole of the band piece are fixed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram showing an embodiment of the present invention.
The band 1 is configured by connecting a middle piece 10 and outer pieces 20 and 20 with pins 30. The middle piece 10, the outer pieces 20, 20, and the pin 30 are made of metal, and therefore the band 1 is a metal band. At this time, a pipe 40 is provided in the pin hole 11 of the middle piece 10. The surface of the pin 30 is gold plated. Other plating may be applied.
[0012]
When the pin 30 is inserted into the pin hole 11 of the intermediate piece 10 having the pipe 40, the pipe 40 covers the pin 30. As a result, since the strength of the pin 30 is reinforced by the pipe 40, the same strength can be obtained even if the diameter of the pin is smaller than that of the conventional one.
[0013]
Further, both end portions 31 of the pin 30 protrude from the pin hole 11. By inserting the both end portions 31, 31 into the pin holes 21, 21 of the outer pieces 20, 20, the middle piece 10 and the outer pieces 20, 20 are connected. When the middle piece 10 and the outer pieces 20 and 20 are connected in this way, a band 1 is formed.
[0014]
And the band 1 comprised in this way is heat-processed. Then, the plating on the surface of the pin 30 is melted, and the outer circumferences of both end portions 31 and 31 of the pin 30 and the inner walls of the pin holes 21 and 21 of the outer pieces 20 and 20 are welded. As a result, the pin 30 and the pin holes 21 and 21 of the outer pieces 20 and 20 are fixed.
[0015]
According to the experiment by the present inventor, it was found that the welding by plating is stronger than the conventional welding of simply a metal pin and a metal piece. Therefore, even if the pin diameter is smaller than the conventional one, the adhesion between the pin 30 and the outer pieces 20 and 20 is strengthened.
[0016]
On the other hand, portions other than both end portions 31 and 31 of the pin 30 may be heat-treated and welded to the pipe 40. In this case, the pin 30 is not welded to the pin hole 11 of the middle piece 10. For this reason, it does not hinder the middle piece 10 from rotating about the pin 30 as a pivot. On the contrary, since the pin 30 and the pipe 40 are integrated, the strength of the pin 30 is improved.
[0017]
The pin 30 and the outer pieces 20 and 20, and the welding state of the pin 30 and the pipe 40 are shown in detail in FIGS.
FIG. 2 is a plan view of the case where the middle piece 10 and the outer pieces 20 and 20 are connected using a pin 30 (not shown). 3 is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line BB in FIG.
[0018]
As shown in the cross-sectional view of FIG. 3, the pin 30 inserted into the pin hole 21 of the outer piece 20 is welded to the inner wall of the pin hole 21 by plating 35 (see an enlarged view of FIG. 3).
[0019]
FIG. 4 is a cross-sectional view when the pin 30 passed through the pin hole 11 of the intermediate piece 10 is welded to the pipe 40 by plating 35 (see an enlarged view of FIG. 4).
[0020]
In this way, even if the pin 30 is made thinner than the conventional one, the strength can be improved as in the conventional case or more by being covered with the pipe 40. Further, the adhesion between the pin 30 and the pin holes 21 and 21 of the outer pieces 20 and 20 is strengthened by welding by plating applied to the surface of the pin 30. This has the following effects.
(1) By thinning the pin 30, the outer piece 20 and the middle piece 10 can be made thinner.
(2) By making the outer piece 20 thinner, the stress of the pin holes 21 and 21 of the outer piece 20 with respect to the inserted pin 30 becomes weaker, but the adhesion between the pin 30 and the pin holes 21 and 21 is strengthened by welding by plating. So there is no problem.
(3) In addition, the adhesion between the pin 30 and the pin holes 21 and 21 of the outer piece is strengthened by welding by plating, and it is not necessary to take the pin holes 21 and 21 of the outer piece as the interference allowance, so the width of the outer piece is reduced. Can be narrowed.
[0021]
5 to 7 show examples of other embodiments of the band piece.
In FIG. 5, pin holes 21b and 21b of the outer pieces 20b and 20b are penetrated. In this case as well, the pin 30 (not shown) is welded to the inner walls of the pin holes 21b and 21b by melting the surface plating by heat treatment. As a result, the pin 30 and the pin holes 21b and 21b of the outer pieces 20b and 20b are fixed. Note that portions protruding from the pin holes 21b and 21b of the inserted pin 30 are removed by polishing.
[0022]
In FIG. 6, one band piece is a concave / convex piece 24 having a convex portion and a concave portion, and the convex portion of another concave / convex piece 24 is fitted into the concave portion of the concave / convex piece 24, and a pin 30 (not shown) is used. To be connected. Also in this case, the pin 30 is welded to the inner walls of the pin holes 25b and 25b provided in the recesses by melting the surface plating by heat treatment. As a result, the pin 30 and the pin holes 25b, 25b of the concavo-convex piece 24 are fixed.
[0023]
In addition, a pipe 40 (not shown) is provided in the pin hole 25 a provided in the convex portion of the concavo-convex piece 24, and the pipe 40 covers the pin 30. As a result, the strength of the pin 30 is reinforced by the pipe 40.
[0024]
FIG. 7 shows a combination of an H piece 26 and a square piece 28, in which the square piece 28 is fitted in the recess of the H piece 26 and connected by a pin 30 (not shown). Also in this case, the pin 30 is welded to the inner walls of the pin holes 27 and 27 provided in the recesses of the H piece by melting the surface plating by heat treatment. As a result, the pin 30 and the pin holes 27 of the H piece 26 are fixed.
[0025]
Further, the pin holes 29, 29 provided in the square piece 28 are provided with pipes 40 (not shown) so that the pipes 40 cover the pins 30. As a result, the strength of the pin 30 is reinforced by the pipe 40.
[0026]
In the embodiment of the present invention, the case where the surface of the pin 30 is plated is described. However, the present invention is not limited to this, and when applied to the inner wall of the pin hole, the inner wall of the pin hole and the pin It may be applied to both the surface.
[0027]
【The invention's effect】
According to the present invention, it is possible to reduce the diameter of the pin and make the band piece thin. It is also possible to shorten the banding margin of the band piece. Therefore, design restrictions based on the band structure are reduced. As a result, it is possible to provide a highly designable band.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an embodiment of the present invention.
FIG. 2 is a plan view in which a middle piece and an outer piece are connected using a pin.
3 is a cross-sectional view taken along line AA in FIG.
4 is a sectional view taken along line BB in FIG.
FIG. 5 is a plan view showing another embodiment of the band piece.
FIG. 6 is a plan view showing another embodiment of the band piece.
FIG. 7 is a plan view showing another embodiment of the band piece.
FIG. 8 is an explanatory diagram showing a conventional technique.
[Explanation of symbols]
1 Band 10 Medium piece 11 Pin hole 20 Outer piece 21 Pin hole 30 Pin 31 End 40 Pipe

Claims (2)

A band structure with band pieces that have pin holes and can be configured by connecting with pins ,
Without fixing pins, pin hole of one of the adjacent band piece for inserting the pin is not welded to the pin by plating applied to the pin surface in Rukoto comprises a pipe that covers the pins,
A band structure characterized in that the pin hole of the other adjacent band piece to which the pin is fixed is welded to the pin by plating applied to the surface of the pin. A method of manufacturing a band with a band piece that has a pin hole and can be configured by connecting with a pin ,
A band configuration in which a band is formed by connecting a band piece through a pin to the pin hole of each band piece while providing a pipe covering the pin in the pin hole of one adjacent band piece for allowing the pin to be inserted without fixing the pin. Process,
A heating step of heating the configured band,
By heating, the pin hole of one adjacent band piece for allowing the pin to pass through is not welded to the pin by plating applied to the surface of the pin by providing a pipe covering the pin. A method of manufacturing a band, characterized in that the pin hole of the other adjacent band piece that adheres to the pin is welded to the pin by plating applied to the surface of the pin.

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