JPS6129784A - Band for wrist portable equipment - Google Patents

Abstract

PURPOSE:To obtain the band with a circuit board which has no breaking of wire against bending, torsion, and extension by protecting electrode patterns on a resin film with an insulating film and covering its top and reverse with flexible resin. CONSTITUTION:The circuit board 1 has an element fitting hole 3 worked in a resin film base 2 of polyimide, etc., a lead pattern 7 connecting the electrode patterns 6 to each other is formed in an etching process after a rolled copper foil plate is stuck, and the insulating film 8 is furter stuck. Then, the circuit board 1, and an upper band 9 and a lower band 10 are sandwiched between a case 14 and a rear lid 15, and a battery frame 17 and a battery lid 18. The bands 9 and 10 are formed of soft plastic (e.g. urethane resin) having bending an elongating properties and their end parts are joined together with a high frequency melt-sticking adhesive, etc. Consequently, the electrode patterns 6 and lead pattern 7 in the circuit board 1 are protected with the resin film base 2 and insulating film 8, and further protected double through the external force absorption of the bands 9 and 10.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a padded structure for a wrist portable device.

[Prior art]

The band structure of conventional wrist-held devices was developed by the Japanese Patent Publication No. 57-449.
As shown in No. 50, electrode turns are formed on a resin film to form a circuit board, and elements constituting an arm portable device are attached onto the circuit board, and then molded with resin to form a case portion and a band portion of the arm portable device. are doing.

[Problem that the invention seeks to solve]

However, the above-mentioned conventional technology has a problem in that the electrode pattern on the resin film that makes electrical connection between the blocks housing each element cannot follow bending, twisting, and stretching and breaks, resulting in poor continuity. .

SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and its purpose is to provide a band for a wrist portable device that has a circuit board that does not break due to bending, twisting, or stretching.

[Means to solve the problem]

The wrist portable device band of the present invention is characterized by having an electrode pattern formed on a resin film, a circuit board having an insulating film laminated on the pattern, and a circuit board covered with a flexible resin. do.

[Effect]

When bending, twisting, and stretching are applied to the band of the wrist portable device configured as described above, the upper and lower resin films and insulating films absorb most of the external force by bending the electrode pattern part, and the circuit also Since the upper and lower flexible resin absorbs the external force by bending the substrate, the external force applied to the electrode pattern is reduced and wire breakage can be prevented.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

The second circuit board is a circuit board used in the present invention, and the circuit board 1 has a resin film base 2 made of polyimide, polyester, etc., and holes 3 for mounting elements such as holes for mounting the workpiece C are processed. After laminating rolled copper foil sheets or electrolytic copper foil sheets, an etching process is performed to form C lead group 4. One electrode of the battery, + electrode 5, crystal mounting terminal, capacitor terminal, switch terminal, etc. electrode pattern 6 and the above-mentioned electrode tfj
Lead pattern 7 that connects patterns as necessary
is formed. After that, C lead group 4. - A circuit board 1 is formed by laminating insulating film bases 8 with holes at necessary locations of electrodes, electrodes 5, etc.

The electrode pattern and lead pattern of the circuit board configured as described above are protected by the 'R fat film paste insulating film, thereby eliminating disconnection.

After that, elements are attached to each electrode part, and the main circuit part of the wrist portable device is completed.

FIG. 1 is a sectional view of a wrist portable device incorporating the circuit board shown in FIG. 2.

Circuit board 1 with elements mounted on top band 9 after turning. Lower band 10. Liquid crystal display element 11.
The connector 12 is assembled, and then the liquid crystal display element 11. I
Elements such as Cl3 are blocked by a case 14 and a back cover 15 made of metal or hard plastic.

Similarly, the battery 16, which is a power source, is made into a block with a battery frame 17° and a battery lid 1BK made of metal or hard plastic.

That is, a circuit board 1 for electrically connecting both blocks, and an upper band 9. The lower band 10 is attached to the case 14.
Back cover 15 and battery frame 17. It is sandwiched between the battery lids 18.

Here, the upper and lower bands 9 and 10 are made of bendable and stretchable soft plastic (for example, urethane resin), and the circuit board 1 is sandwiched between them, and the ends of the upper and lower bands are welded by high frequency welding, ultrasonic welding, or adhesive. Or they are joined by a combination of them.

With this configuration, the electrode pattern and lead pattern in the circuit board can be connected to the resin film base 2.
and is protected by an insulating film 8, and is further protected by an upper and lower band? , 1o absorbs external force and provides double protection.

When such an arm portable device is attached to the arm, there is no possibility of disconnection of the electrode pattern or lead pattern due to bending or twisting. Furthermore, with respect to elongation, the elongation rate of the upper band covering the circuit board is made larger than that of the lower band, and the elongation force is absorbed by the upper band other than between the blocks, thereby eliminating wire breakage due to elongation.

In this text, the electrode pattern and lead pattern on the resin film have been explained using a copper foil plate, but they are not limited to this, and examples include carbon and aluminum.

A similar construction is possible with a silver-based pattern.

〔effect〕

As described above, according to the present invention, the electrode pattern on the resin film that connects the blocks housing the components of the arm portable device is protected with an insulating film, and the upper and lower parts thereof are further covered with flexible resin. Accordingly, it is possible to provide a wrist-portable device that protects the electrode pattern without impairing its portability on the wrist and does not cause disconnection.

This means that the arm-held device can display,% source,
It is now possible to distributively arrange various components such as the sensor, speaker, sensor, etc., and it is not necessary to store all the elements in a case like in a wristwatch, for example, and it is possible to incorporate many functions into a wrist-held device. .

Although the present invention relates to a band for a wrist portable device, by using the structure of the present invention, it can also be applied to a bendable keyboard, and is particularly effective for a bendable T-table.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the band portion of the wrist portable device of the present invention. FIG. 2(α)t(h) is a plan view and a sectional view of a circuit board used in the present invention. 1... Circuit board 2... Resin film base 8... Insulating film 9... Upper band 1v... Lower band

Claims (2)

[Claims] (1) A circuit board in which an electrode pattern is formed on a resin film or a flexible resin, and an insulating film is laminated on the electrode pattern, and the circuit board is covered with a flexible resin. A wrist portable device band characterized by: (2) A circuit board in which an electrode pattern is formed on a resin film or a flexible resin, and an insulating film is laminated on the electrode pattern, and the top and bottom of the circuit board are covered with resins with different extensibility. A wrist portable device band according to claim 1, characterized in that: