JPS5855766B2 - How to make a watch band - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a new method for manufacturing a flexible watch band in which the outer surface of a mesh core material is closely covered with wire-like members. A first step of leaving connection parts at both ends in the width direction and arranging multiple parallel cutting lines at regular intervals, and cutting the strip into a band length, and a step of cutting both sides of the metal strip in the same direction at right angles. The second step is to bend the metal strip into a shape and insert a flexible core member over the entire length of the inner surface of the metal strip, and to attach a temporary fixing tape to the middle part of the metal strip, and to attach the flexible core member to the entire length of the inner surface of the metal strip. A third step of cutting off the connection part, and a second step of cutting the connection part.
The second step consists of folding and pressing both sides bent at right angles to the outer surface of the core material in the step, and peeling off the temporary fixing tape applied in the third step.

Conventionally, this type of band was made by cutting a strip metal plate in the width direction to make a large number of wire rods, aligning these wire rods to the length of the band, and then temporarily fixing them with tape and placing them on the core material. Place the wire rod on the back of the core material, fold both ends of the wire row onto the back of the core material, and crimp them.
Once the product was completed, the temporary tape was removed.

This manufacturing method requires detailed and manual methods for arranging and arranging a large number of cut wire rods in parallel, and for temporarily fixing them with tape.Moreover, in the process of passing through the next and several subsequent steps, the tape may become partially distorted. Since there is a risk of peeling or peeling parts of the wire, the work must be carried out carefully, and this has the disadvantage of seriously hindering mass production.

In the method of the present invention, in the step of creating multiple parallel cut lines in the width direction of the metal strip, connection parts are left on both sides in the width direction.
Each wire rod between the parallel cut lines is connected by a connecting part, which eliminates the traditional manual alignment and temporary fixing processes, allowing efficient mass production of high-quality, uniform bands. It can be made possible.

Examples will be described below.

A plurality of parallel cutting lines 3 are provided in the width direction of a metal band plate 1 with connection parts 2° 2' remaining at both ends, and the band is cut into a length.

The interval between parallel tangent lines 3 varies depending on the type, but is generally 1
It is less than 100%.

Next, the strip plate 1 that has gone through the first step is bent downward at right angles on both sides in the width direction at the points of line A and line B, and a flexible core member 5 made of mesh is inserted over the entire length of the intermediate inner surface. Perform 2 steps,
Next, a temporary fixing tape 4 is applied over the entire length of the middle part of the metal strip 1, and the connection parts 2, 2' at both ends left in the first step are applied.
Perform the third step of cutting out.

Next, in the second step, both sides bent at right angles are attached to the core member 5.
A fourth tape is folded back and crimped onto the outer surface of the tape, and the temporary tape 4 is peeled off.
They carry out the process.

In this way, a flexible watch band in which a large number of rectangular wire members 1' are tightly and closely adhered in parallel to the outer surface of the core member 5 can be mass-produced accurately and efficiently.

In short, the present invention leaves the connecting parts 2, 2' at both ends of the metal strip 1 in the width direction and provides the parallel cut lines 3. ' is maintained in a straight line state, so the process of arranging a large number of square wire members and temporarily fixing the straight wire rods, which would have been extremely troublesome and manual procedures, is omitted. Moreover, unlike temporary fixing, there is no risk of the wire rows collapsing or peeling, and a flexible band can be manufactured efficiently and accurately.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of a band manufactured according to the present invention;
Fig. 2 is a plan view showing the first step, Fig. 3 is a perspective view shown after the third step, Fig. 4 is a back view showing a part of the fourth step, 1 is a metal strip, 2 2' is a connecting portion, 3 is a parallel cutting line, 4 is a temporary fixing tape, and 5 is a core member.

Claims (1)

[Claims] 1. A first step of leaving connection parts at both ends of the metal strip in the width direction, arranging multiple parallel cutting lines at regular intervals, and cutting the metal strip into a band length, and cutting both sides of the metal strip in the width direction. The second step is to bend the metal strip at right angles in the same direction and insert a flexible core member over the entire length of the intermediate inner surface, and the first step is to apply a temporary fixing tape to the middle part of the metal strip. A third step is to cut off the remaining connecting portions at both ends, and a fourth step is to fold and press-bond both sides bent at right angles to the outer surface of the core material in the second step, and to peel off the temporarily attached tape in the third step. A method of manufacturing a watch band, which is characterized by a careful process.