JPH10290084A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an electronic equipment provided with a flexible film which is wound on a binge mechanism, produces no looseness, and is almost kept free from damage caused by bending stress, wherein its casing can be lessened in size. SOLUTION: An electronic equipment has such a structure that a liquid crystal display panel which is set movable through the intermediary of a biaxial hinge mechanism is electrically connected to a video camera main body with three flexible films, and belt-like flexible parts 3a, 3b, and 3c formed of the three overlapping flexible films are wound on a biaxial hinge mechanism. In this case, the belt-like flexible parts 3a, 3b, and 3c formed of three overlapping film sheets are so set in length as to meet a formula, 3a<3b<3c, or to become gradually shorter with the innermost one shortest, whereby the belt-like flexible parts 3a, 3b, and 3c are kept free from looseness caused by a winding length difference among them when they are wound on the biaxial hinge mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic apparatus suitable for application to, for example, a video camera apparatus having a liquid crystal display panel of an externally mounted and rotatable type. The present invention relates to a flexible wiring film for electrically connecting a liquid crystal display panel, which is a movable part, to a flexible wiring film.

[0002]

2. Description of the Related Art Conventionally, a liquid crystal display panel of this type is connected to a video camera main body by a biaxial hinge mechanism, and the liquid crystal display panel can be turned upright and rotated with respect to the video camera main body. Some are configured to be able to. The video camera body and the liquid crystal display panel are electrically connected by a flexible wiring film (hereinafter, referred to as a flexible film) via a biaxial hinge mechanism.

FIG. 7 is a plan view of a conventional flexible film in a developed state. One end of the flexible film is a relatively wide flexible portion 1 connected to the video camera main body, and the leading end is a connection terminal portion 1a. Also,
The other end of the flexible film is a flexible portion 2 having a width connected to the liquid crystal display panel, and the leading end is a connection terminal portion 2a.

The flexible section 1 and the flexible section 2 are composed of three parallel strip-shaped flexible sections 3a, 3b and 3c branched in a narrow width, and each of the strip-shaped flexible sections 3a, 3b and 3c has an equal length S. The flexible film has a substantially key shape as a whole, and a wiring pattern is formed on the flexible film (not shown).

[0005] In addition, the strip-shaped flexible portions 3a, 3a on the flexible portion 1 side.
Adhesive layers 4a and 4b protected by a release paper are formed on the upper surface of the corner portion of 3b.
Adhesive layer 4c protected by release paper at branching points a and 3b
Are formed. The band-shaped flexible portion 3a on the flexible portion 2 side,
Adhesive layers 5a and 5b protected by release paper are also formed on 3b. The portion indicated by the imaginary line indicates the bending position 6 of the flexible film.

When using the above-mentioned flexible film,
The strip-shaped flexible portions 3a, 3b, 3c branched into three pieces are overlapped and bonded. That is, in a state where the release paper is peeled off, the adhesive layer 4a at the corner of the strip-shaped flexible portion 3a is formed.
The corner portion of the strip-shaped flexible portion 3b is bonded thereon, and the corner portion of the strip-shaped flexible portion 3c is bonded onto the adhesive layer 4b at the corner portion of the strip-shaped flexible portion 3b. Subsequently, the band-shaped flexible portion 3b is bonded on the adhesive layer 5a of the band-shaped flexible portion 3a, and the band-shaped flexible portion 3c is bonded on the adhesive layer 5b of the band-shaped flexible portion 3b.

As a result, the three flexible strips 3a,
The flexible films 3b and 3c are integrated in a superposed state, and then the bending position 6 is bent to form a flexible film as shown in FIG.

[0008] Thus, after connecting the connection terminal portion 2a of the flexible portion 2 to the connector on the liquid crystal display panel side, the flexible film is connected to the overlapped band-shaped flexible portions 3a, 3b, 3c a plurality of times about the rotation axis of the biaxial hinge mechanism. Wrap, flexible part 1
Is connected to the connector on the video camera main body side.

[0009]

By the way, the above-mentioned conventional flexible film is composed of strip-shaped flexible portions 3a, 3b, 3c.
Are wound on the rotating shaft 10 of the biaxial hinge mechanism as shown in FIG. 9 so that the inner side flexible strip 3a and the outer side flexible strip 3c are formed as shown in FIG. Therefore, there is a problem that a slack portion 7 is generated at the final end of the wound flexible band portion.

The belt-shaped flexible portion wound around the rotary shaft 10 is protected by a part of the cylindrical portion 11 of the outer housing that covers the biaxial hinge mechanism. Since it is necessary to protect the slack portion 7 at the same time, the cylindrical portion 11
Therefore, it was difficult to reduce the size of the outer case, and the outer housing for covering the biaxial hinge mechanism had to be inevitably increased in size.

Further, since the conventional flexible film is a band-shaped flexible portion in which the portions that bend with the rotation of the biaxial hinge mechanism are overlapped, the flexible film is likely to be subjected to a large bending stress and causes damage to the flexible film. In particular, there is a high risk of breakage of the slack portion 7 of the flexible portion when it receives bending stress. Further, the occurrence of bending stress in the bent portion of the flexible film has a high risk of breakage. In this respect, the conventional flexible film has not been configured to transmit the bending stress to the bent portion.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and the flexible film wound around the hinge mechanism does not become loose, so that the size of the outer housing can be reduced. Another object of the present invention is to provide an electronic device having a flexible film that is hardly damaged by bending stress.

[0013]

In order to achieve the above object, an electronic device according to the present invention comprises a flexible wiring film, wherein a plurality of overlapping strips are wound around hinge means. The length of the overlapping part of the wiring film is shortened in the order of the flexible wiring film located inside,
This is to eliminate the inner ring difference in length when wound.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an electronic apparatus according to the present invention will be described with reference to the drawings, taking a flexible wiring film applied to a video camera apparatus having a liquid crystal display panel as an example.

FIG. 1 is an external perspective view of a video camera apparatus having an external liquid crystal display panel.

In FIG. 1, a liquid crystal display panel 21 is connected to a video camera main body 20 by a biaxial hinge mechanism 22, so that the liquid crystal display panel 21 can be raised and rotated to an upright position as shown in FIG. The panel display surface 21a is configured to be capable of reversing turning operation. still,
Reference numeral 23 denotes an electronic viewfinder mounted on the video camera body 20.

FIG. 2 is a developed plan view of a flexible wiring film (hereinafter, referred to as a flexible film) for electrically connecting the video camera body 20 and the liquid crystal display panel 21 via the biaxial hinge mechanism 22. It is a diagram, and the same portions as those of the conventional flexible film described in FIG.

One end of the flexible film is a flexible portion 1 having a relatively wide width connected to the video camera body,
The tip is the connection terminal 1a. The other end of the flexible film is a flexible portion 2 having a width to be connected to the liquid crystal display panel, and the leading end is a connection terminal portion 2a.

Between the flexible portion 1 and the flexible portion 2, a narrow width 3
The parallel flexible strips 3a, 3b, 3c are branched. One end side (lower end side in FIG. 2) of each of the strip-shaped flexible portions 3a, 3b, 3c is bent at a right angle, and is connected to the flexible portion 1 as drawing strip-shaped flexible portions 30a, 30b, 30c. In addition, each of the strip-shaped flexible portions 3a, 3b,
The other end (upper end in FIG. 2) of 3c is bent at a right angle, and is connected to the flexible portion 2 as strip-shaped flexible portions 31a, 31b, 31c for drawing.

The lengths of the strip-shaped flexible portions 3a, 3b, 3c are gradually different from each other. Strip flexible part 3a
The belt-like flexible portion 3b is longer than the belt-like flexible portion 3b, and the belt-like flexible portion 3c is formed longer than the belt-like flexible portion 3b. That is, each of the strip-shaped flexible members satisfies 3a <3b <3c, has a substantially key shape as a whole shape of the flexible film, and a wiring pattern (not shown) is formed on the flexible film.

On the upper surfaces of the corner portions of the strip-shaped flexible portions 3a, 3b on the flexible portion 1 side, an adhesive layer 4a, protected by release paper,
4b, and the draw-out flexible portion 3
An adhesive layer 4c protected by a release paper is formed at the branched portions of Oa and 30b. Adhesive layers 5a and 5b protected by release paper are also formed on the draw-out strip flexible portions 31a and 31b on the flexible portion 2 side. In addition, the part shown by the virtual line shows the bending part 6 of a flexible film.

When the above-mentioned flexible film is used,
The strip-shaped flexible portions 3a, 3b, 3c branched into three pieces are overlapped and bonded. That is, in a state where the release paper is peeled off, the adhesive layer 4a at the corner of the strip-shaped flexible portion 3a is formed.
The corner portion of the strip-shaped flexible portion 3b is bonded thereon, and the corner portion of the strip-shaped flexible portion 3c is bonded onto the adhesive layer 4b at the corner portion of the strip-shaped flexible portion 3b. Subsequently, the draw-out flexible strip 31b is adhered onto the adhesive layer 5a of the draw-out flexible strip 31a, and the draw-out flexible strip 3b is bonded.
The draw-out strip-shaped flexible portion 31c is adhered on the adhesive layer 5b of 1b.

Thus, the three strip-shaped flexible portions 3a,
3b and 3c are integrated in a state of being overlapped, and then the bent portion 6 is bent to form a flexible film as shown in FIG.
It is formed as shown in FIG. Therefore, the three superposed flexible strips 3a, 3b and 3c are in a state in which the lowermost flexible strip 3a is in tension while the upper flexible strip 3b is slightly loosened as shown in FIG. , And the uppermost band-shaped flexible portion 3c is further slackened.

As shown in FIG. 5, the above-mentioned flexible film is wound around the rotating shaft 24 of the biaxial hinge mechanism 22 a plurality of times with the lowermost flexible strip 3a inside, and the overlapping drawer on the flexible section 2 side. Strip-shaped flexible portions 31a, 31
b and 31c are attached to the bracket 25 on the rotating side with an adhesive tape 26.
Fix with. Further, the flexible portion 1 is pulled out from the lower surface side of the biaxial hinge mechanism portion 22 together with the draw-out band-shaped flexible portions 30a, 30b, 30c overlapping the flexible portion 1 side.

The half-shape outer casings 27, 28 are attached to the biaxial hinge mechanism 22 thus supporting the flexible film.
And attach them from above and below. FIG. 6 shows a state in which the outer casings 27 and 28 are attached. At this time, the outer casings 27, 28
The band-shaped flexible portions 3a, 3b, 3c wound around the rotary shaft 24 are protected by the cylindrical bodies 27a, 28a.

Thereafter, the biaxial hinge mechanism 22 is attached to the video camera body, and the connection terminal 1a of the flexible section 1 is connected to the connector on the body. Also, the bracket 25 is attached to the liquid crystal display panel side, and the flexible part 2 is connected to a connector on the panel side.

Thus, the flexible strips 3a, 3b, 3c wound around the rotating shaft 24 of the biaxial hinge mechanism 22 are
Since each of the strip-shaped flexible portions has a length relationship of 3a <3b <3c, as shown in FIG. 6, when the lowermost strip-shaped flexible portion 3a is wound around the rotating shaft 24 with the lowermost strip-shaped flexible portion 3a inside. The three belt-shaped flexible portions 3a, 3b, 3c do not loosen due to the inner ring difference. That is, the three belt-shaped flexible portions 3a, 3b, 3c are designed to have such a length that the inner ring difference does not occur when wound around the rotating shaft 24. Such strip flexibles 3a, 3b,
3c, the cylindrical body 2 covering around the rotation axis
7a and 28a can be reduced, and there is an advantage that the entire outer housing can be reduced in size.

Further, since no slack is generated in the strip-shaped flexible portions 3a, 3b, 3c wound around the rotating shaft 24 of the biaxial hinge mechanism, the strip-shaped flexible portion accompanying the rotating operation of the rotating shaft 24 together with the bracket 25. Has no effect on the deformation stress of the repetition.

Further, as shown in FIG. 6, in the movable portion of the biaxial hinge mechanism, the overlapping portion of the flexible film is fixed by the biaxial hinge mechanism and the outer casing, and the other single portion 1b , The stress applied to the flexible film can be reduced.

Further, since the bending portion 6 of the flexible film which is weak in bending stress is arranged at a position away from the movable portion of the biaxial hinge mechanism, the bending stress accompanying the movable portion is reduced by the bending portion of the flexible film. There is no transmission to 6.

The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention.

Although the present invention has been described with reference to the case of a band-shaped flexible portion overlapping three sheets, it is needless to say that the present invention can be widely applied to a case where two or more flexible films are overlapped.

In the embodiment of the present invention, the case where the flexible film is electronically connected to the video camera body 1 and the liquid crystal display panel 2 via the biaxial hinge mechanism is described. In addition, the present invention can be widely applied to a flexible film in which a fixed portion that is an electronic device main body and a movable portion that is movable via a hinge means are electrically connected.

[0034]

As described above, the electronic device according to the present invention has a length which does not cause an inner ring difference when a plurality of flexible films are wound around a part of the hinge means in a state of being overlapped. Due to the relationship, the flexible film can be wound in a small size without causing slack due to an inner ring difference. Thus, there is an effect that the diameter of the cover for protecting the wound flexible film can be reduced, and the size can be reduced.

Further, since the flexible film is not loosened due to the inner ring difference, an electronic apparatus having a highly reliable flexible film without being damaged by bending stress.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a video camera device having a liquid crystal display panel as an example of an electronic apparatus according to the invention.

FIG. 2 is a plan view of a flexible wiring film according to the present invention in an unfolded state.

FIG. 3 is a plan view in which belt-like flexible portions are similarly overlapped and integrated.

FIG. 4 is a side view in which the belt-like flexible portions are also overlapped and integrated.

FIG. 5 is a perspective view in which a flexible wiring film is attached to a biaxial hinge mechanism.

FIG. 6 is a perspective view in which a biaxial hinge mechanism is covered by an outer housing;

FIG. 7 is an enlarged view of a wrapped state of a flexible band portion.

FIG. 8 is a plan view showing a developed state of a conventional flexible wiring film.

FIG. 9 is a plan view in which the conventional strip-shaped flexible portions are overlapped and integrated.

FIG. 10 is an enlarged view of a state where the belt-shaped flexible portion is wound.

[Explanation of symbols]

1, 2, flexible part, 1a, 2a connection terminal part, 3a, 3
b, 3c Strip flexible portions, 4a, 4b, 4c, 5a, 5
b adhesive layer, 6 bent portion, 20 video camera body portion, 21 liquid crystal display panel, 22 biaxial hinge mechanism portion,
24 rotating shaft, 25 bracket, 26 tape, 27
a, 28a Cylindrical body of outer housing, 30a to 30c, 31a to
31c Flexible band for drawer

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 12, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

3. A electronic device according to claim 1, wherein, in the portion which receives the bending stress of the flexible wiring film by the hinge means, so that the superimposed films section single film portions other than <br/> content corresponding Electronic equipment characterized in that:

4. The electronic device according to claim 1, wherein the bent film portion of the flexible wiring film is located at a position where stress due to rotation of the hinge means is not transmitted. Electronics.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0003

[Correction method] Change

[Correction contents]

FIG. 8 is a plan view of a conventional flexible wiring film in a developed state. Flexible film is 1
Sheets are formed from a film-shaped sheet, one end is flexible portion 1 having the relatively wide to be connected to the video camera body side, the tip portion is a connection terminal portion 1a. Also,
The other end of the flexible film is a flexible portion 2 having a width connected to the liquid crystal display panel, and the leading end is a connection terminal portion 2a.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005] In addition, the strip-shaped flexible portions 3a, 3a on the flexible portion 1 side.
Adhesive layers 4a and 4b protected by a release paper are formed on the upper surface of the corner portion of 3b.
Adhesive layer 4c protected by release paper at branching points a and 3b
Are formed. The band-shaped flexible portion 3a on the flexible portion 2 side,
Adhesive layers 5a and 5b protected by release paper are also formed on 3b. In addition, the part shown by the virtual line shows the bending part 6 of a flexible film.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

As a result, the three flexible strips 3a,
3b, 3c are integrated in a state of being superimposed, then, flexible film by bending the bent portion 6 in FIG. 9
It is formed as shown in FIG.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[0009]

By the way, the above-mentioned conventional flexible film is composed of strip-shaped flexible portions 3a, 3b, 3c.
Because but those superimposed is respectively equal length, the rotation shaft 10 of the biaxial hinge mechanism as shown in FIG. 10
, An inner ring difference in length occurs between the inner flexible strip portion 3a and the outer flexible belt portion 3c, and as a result,
There is a problem that the slack 7 is generated at the final end of the wound flexible band.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

FIG. 2 is a developed plan view of a flexible wiring film (hereinafter, referred to as a flexible film) for electrically connecting the video camera body 20 and the liquid crystal display panel 21 via the biaxial hinge mechanism 22. a diagram, the conventional flexible film and the same parts described in FIG. 8 are designated by the same reference numerals.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

A flexible film is a single film-like sheet
, One end of which is a flexible portion 1 having a relatively wide width connected to the video camera body, and the tip of which is a connection terminal portion 1a. Further, a flexible portion 2 having a width in which the other end of the flexible film is connected to the liquid crystal display panel side.
, And the tip is the connection terminal 2a.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

Thus, the flexible strips 3a, 3b, 3c wound around the rotating shaft 24 of the biaxial hinge mechanism 22 are
Since each strip-shaped flexible portion has a length relationship of 3a <3b <3c, as shown in FIG. 7 , when the lowermost strip-shaped flexible portion 3a is wound around the rotating shaft 24 with the lowermost strip-shaped flexible portion 3a inside. The three belt-shaped flexible portions 3a, 3b, 3c do not loosen due to the inner ring difference. That is, the three belt-shaped flexible portions 3a, 3b, 3c are designed to have such a length that the inner ring difference does not occur when wound around the rotating shaft 24. Such band-shaped flexible portions 3a, 3
By adopting b and 3c, there is an advantage that the cylindrical bodies 27a and 28a that cover around the rotation axis can be reduced, and the entire outer housing can be reduced in size.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 10 is an enlarged view of a state in which a conventional flexible strip is wound.

[Procedure amendment 10]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

[Procedure amendment 11]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

[Procedure amendment 12]

[Document name to be amended] Drawing

[Correction target item name] Fig. 7

[Correction method] Change

[Correction contents]

FIG. 7

Claims (3)

[Claims] A fixed portion on the electronic device main body side and a movable portion movable with respect to the electronic device main body via hinge means are electrically connected by a flexible wiring film, and a part of the flexible wiring film. In an electronic device having a plurality of strips branched in parallel to each other, and the strips are overlapped and wound around the hinge means, the length of the overlapped portion of the flexible wiring film is set to An electronic device characterized in that the length of the flexible wiring film positioned in the order is shortened in order, thereby eliminating the inner ring difference in length when wound. 2. The electronic device according to claim 1, wherein a single portion other than the overlapped portion corresponds to a portion of the flexible wiring film which receives the bending stress by the hinge means. Electronics. 3. The electronic device according to claim 1, wherein the bent portion of the flexible wiring film is
An electronic device, wherein a stress is not transmitted by the rotation of the hinge means.