JP2021033192A

JP2021033192A - Hinge mechanism for flexible display

Info

Publication number: JP2021033192A
Application number: JP2019156320A
Authority: JP
Inventors: 孝仁高橋; Takahito Takahashi; 大祐樽見; Daisuke Tarumi
Original assignee: Staf Corp Ltd
Current assignee: Staf Corp Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2021-03-01
Anticipated expiration: 2039-08-29
Also published as: JP7281809B2

Abstract

To smoothly fold a flexible display used for a mobile electronic apparatus and the like to make a display surface of the flexible display an inner face of a housing.SOLUTION: When a hinge mechanism 1 for a flexible display is folded inward at 90 degrees, a folded portion of the flexible display curves downward in a convex arc shape. A back face of the curve portion of the flexible display presses surfaces 112A and 112A' of support portions 112 and 112' downward. A first support plate 11 oscillates in a counterclockwise direction around a shaft portion 73 as a center and a second support plate 11 oscillates in a clockwise direction around a shaft portion 73' as a center. As a result, back faces 112B and 112B' of the support portions 112 and 112'approach an inclined face of a top face of an inclined arm portion and then surfaces 112A and 112A' of the support portions 112 and 112' support the curve portion of the flexible display equally on both right and left sides to fold, so that the flexible display can be smoothly folded inward.SELECTED DRAWING: Figure 5

Description

本発明は、モバイル用電子機器等に使用するフレキシブルディスプレイ用ヒンジ機構に関する。更に詳しくは、有機ＥＬパネル等のフレキシブルディスプレイを、表示面が筐体の内面側になるように円滑に折り畳むことができるフレキシブルディスプレイ用ヒンジ機構に関する。 The present invention relates to a hinge mechanism for a flexible display used in mobile electronic devices and the like. More specifically, the present invention relates to a hinge mechanism for a flexible display capable of smoothly folding a flexible display such as an organic EL panel so that the display surface is on the inner surface side of the housing.

近年、有機ＥＬ等を使用したフレキシブルディスプレイが登場している。このフレキシブルディスプレイは、本を見開きするかのように、ディスプレイを筐体の内面側に折り畳むものが提案されている。特許文献１に記載された折り畳み機構は、フレキシブルディスプレイを内面側に折り畳むものであり、二つの筐体を同期して折り畳むために、歯車で連動させるものである。この歯車は、筐体に一体形成するか、筐体の外側に別部品として形成するものである。 In recent years, flexible displays using organic EL and the like have appeared. It has been proposed that this flexible display folds the display toward the inner surface of the housing as if it were a book spread. The folding mechanism described in Patent Document 1 folds the flexible display inward, and interlocks the flexible display with gears in order to fold the two housings in synchronization. This gear is integrally formed with the housing or is formed as a separate component on the outside of the housing.

特表２０１７−５１００６５号Special Table 2017-510065

モバイル用電子機器等のフレキシブルディスプレイは、可能な限りディスプレイの外枠は薄い方が好ましい。このヒンジ機構は、同期のための歯車が筐体に一体に形成されているために筐体の肉厚が厚くなる、又、筐体の外側に歯車を配置したものは、筐体である外側の枠体の肉厚が厚くなり、フレキシブルディスプレイの面積が狭くなる。一方、フレキシブルディスプレイは、表示面が筐体の内面側になるように折り曲げるとき、折り曲げ部分は円弧状になる。円弧状の部分は、均等に曲げないと一部の曲率が許容曲率より小さくなる事もあり、フレキシブルディスプレイを損傷する。このためにフレキシブルディスプレイを折り曲げるとき、安定的に想定内の円弧が形成されることが好ましい。特許文献１に示す機構は、筐体の折り畳み動作に連動する二本のレバー機構（図２１ａ、図２１ｂ参照）を組み合わせたものであり、部材をフレキシブルディスプレイに沿わせて、円弧の形に矯正して想定内の円弧に形成するものである。しかし、揺動動作がフリーの二本のレバー機構を組み合わせて用いるものであるために、レバーの動作が安定しない。 For flexible displays such as mobile electronic devices, it is preferable that the outer frame of the display is as thin as possible. In this hinge mechanism, the wall thickness of the housing becomes thick because the gears for synchronization are integrally formed in the housing, and the one in which the gears are arranged on the outside of the housing is the outside of the housing. The wall thickness of the frame becomes thicker, and the area of the flexible display becomes smaller. On the other hand, when the flexible display is bent so that the display surface is on the inner surface side of the housing, the bent portion has an arc shape. If the arcuate portion is not bent evenly, a part of the curvature may be smaller than the allowable curvature, which damages the flexible display. Therefore, when the flexible display is bent, it is preferable that an expected arc is stably formed. The mechanism shown in Patent Document 1 is a combination of two lever mechanisms (see FIGS. 21a and 21b) interlocking with the folding operation of the housing, and corrects the member into an arc shape along the flexible display. It is formed into an expected arc. However, the lever operation is not stable because the two lever mechanisms that are free to swing are used in combination.

本発明は、以上のような背景により以下の目的を達成するものである。
本発明の目的は、モバイル用電子機器等に使用するフレキシブルディスプレイを表示面が筐体の内面側になるように円滑に折り畳むことができる、フレキシブルディスプレイ用ヒンジ機構を提供することにある。
本発明の他の目的は、表示面が筐体の内面側になるように折り畳むことができるフレキシブルディスプレイにおいて、形成される円弧の形を想定内に再現できる、フレキシブルディスプレイ用ヒンジ機構を提供することにある。
本発明の更に他の目的は、表示面が筐体の内面側になるように折り畳むことができるフレキシブルディスプレイにおいて、ヒンジ機構をユニット化し、フレキシブルディスプレイの折り畳み部の辺の長さに応じて共通のヒンジ機構を必要な個数使用できるようにした、フレキシブルディスプレイ用ヒンジ機構を提供することにある。 The present invention achieves the following object based on the above background.
An object of the present invention is to provide a hinge mechanism for a flexible display capable of smoothly folding a flexible display used for a mobile electronic device or the like so that the display surface is on the inner surface side of the housing.
Another object of the present invention is to provide a hinge mechanism for a flexible display that can reproduce the shape of the formed arc in a flexible display that can be folded so that the display surface is on the inner surface side of the housing. It is in.
Yet another object of the present invention is to unitize the hinge mechanism in a flexible display that can be folded so that the display surface is on the inner surface side of the housing, which is common according to the length of the side of the folded portion of the flexible display. It is an object of the present invention to provide a hinge mechanism for a flexible display in which a required number of hinge mechanisms can be used.

本発明は、前記課題を解決するために、次の手段を採る。
即ち、本発明１のフレキシブルディスプレイ用ヒンジ機構は、隣接する端部が二つ折りに折り畳み可能に連結された第１の筐体及び第２の筐体と、前記第１の筐体及び前記第２の筐体の内面間に渡って配置され、表示面の裏面が前記内面側に配置されたフレキシブルディスプレイとを有するフレキシブルディスプレイ用ヒンジ機構において、前記折り畳み動作により前記第１の筐体と共に揺動し、一端に設けられた同軸の二つの第１揺動部（２１、２１）、及び前記第１揺動部（２１、２１）と同軸の第１ピニオン（２２）が形成され、前記第１揺動部（２１、２１）を中心に揺動する第１の揺動リンク（２）と、前記折り畳み動作により前記第２の筐体と共に揺動し、一端に設けられた同軸の二つの第２揺動部（２１’、２１’）、及び前記第２揺動部（２１’、２１’）と同軸の第２ピニオン（２２’）が形成され、前記第２揺動部（２１’、２１’）を中心に揺動する第２の揺動リンク（２’）と、前記第１揺動部（２１、２１）及び前記第２揺動部（２１’、２１’）を挟んで配置され、前記第１揺動部（２１、２１）及び前記第２揺動部（２１’、２１’）を揺動自在に支承する二つのラック保持部材（５、６）と、前記第１ピニオン（２２）及び前記第２ピニオン（２２’）を挟んで配置され、前記第１ピニオン（２２）に噛み合う第１ラック歯（３１、４１）と、前記第２ピニオン（２２’）に噛み合う第２ラック歯（３１’、４１’）が形成され、二つの前記ラック保持部材（５、６）にそれぞれ移動自在に支承されている二つのラック（３、４）と、前記ラック保持部材（５、６）を挟んで配置され、前記第１の揺動リンク（２）に一体に固定されて、前記第１揺動部（２１、２１）と同軸の二つの第１補助揺動部（７１、７１、８１、８１）を中心に揺動する二つの第１の補助揺動リンク（７、８）と、前記ラック保持部材（５、６）を挟んで配置され、前記第２の揺動リンク（２’）に一体に固定されて、前記第２揺動部（２１’、２１’）と同軸の二つの第２補助揺動部（７１’、７１’、８１’、８１’）を中心に揺動する二つの第２の補助揺動リンク（７’、８’）と、前記第１の補助揺動リンク（７、８）及び前記第２の補助揺動リンク（７’、８’）を前記ラック保持部材（５、６）との間に挟んで配置され、前記第１補助揺動部（７１、７１、８１、８１）及び前記第２補助揺動部（７１’、７１’、８１’、８１’）を、前記ラック保持部材（５、６）との間で揺動自在に支承する二つの保持部材（９、１０）とを備えたことを特徴とする。 The present invention adopts the following means in order to solve the above problems.
That is, in the hinge mechanism for a flexible display of the present invention 1, the first housing and the second housing in which adjacent ends are foldably connected in half, and the first housing and the second housing are described. In a hinge mechanism for a flexible display having a flexible display arranged between the inner surfaces of the housings and the back surface of the display surface arranged on the inner surface side, the hinge mechanism swings together with the first housing by the folding operation. , Two coaxial first swinging portions (21, 21) provided at one end, and a first pinion (22) coaxial with the first swinging portion (21, 21) are formed, and the first swinging portion is formed. A first swing link (2) that swings around a moving portion (21, 21) and two coaxial second swings that swing together with the second housing by the folding operation and are provided at one end. A swinging portion (21', 21') and a second pinion (22') coaxial with the second swinging portion (21', 21') are formed, and the second swinging portion (21', 21') is formed. It is arranged so as to sandwich the second swing link (2') that swings around'), the first swing portion (21, 21), and the second swing portion (21', 21'). , Two rack holding members (5, 6) that swingably support the first swinging portion (21, 21) and the second swinging portion (21', 21'), and the first pinion (5, 6). The first rack teeth (31, 41) that are arranged so as to sandwich the 22) and the second pinion (22') and mesh with the first pinion (22), and the second rack that meshes with the second pinion (22'). Two racks (3, 4) having teeth (31', 41') formed and movably supported by the two rack holding members (5, 6), and the rack holding member (5, 6). ) Is sandwiched between the two first auxiliary rocking portions (71, 71) that are integrally fixed to the first rocking link (2) and coaxial with the first rocking portion (21, 21). , 81, 81) and two first auxiliary swing links (7, 8) swinging around the rack holding member (5, 6) are arranged so as to sandwich the second swing link (7, 8). Centered on two second auxiliary rocking portions (71', 71', 81', 81') that are integrally fixed to 2') and coaxial with the second swinging portion (21', 21'). Two second auxiliary rocking links (7', 8') that swing, the first auxiliary rocking link (7, 8), and the second auxiliary rocking link (7', 8'). Is arranged so as to be sandwiched between the rack holding member (5, 6), the first auxiliary rocking portion (71, 71, 81, 81) and the second auxiliary rocking portion (7). 1', 71', 81', 81') is provided with two holding members (9, 10) that swingably support the rack holding members (5, 6). To do.

本発明２のフレキシブルディスプレイ用ヒンジ機構は、本発明１において、前記第１の筐体と前記第１の補助リンク（７、８）及び前記第２の筐体と前記第２の補助リンク（７’、８’）は一体に固定されていることを特徴とする。
本発明３のフレキシブルディスプレイ用ヒンジ機構は、本発明１または２において、前記第１の補助揺動リンク（７、８）に跨がって、一端が揺動自在に支承され、前記フレキシブルディスプレイを折り曲げたとき他端が前記フレキシブルディスプレイの湾曲部に接する第１の支持プレート（１１）と、前記第２の補助揺動リンク（７’、８’）に跨がって、一端が揺動自在に支承され、前記フレキシブルディスプレイを折り曲げたとき他端が前記フレキシブルディスプレイの湾曲部に接する第２の支持プレート（１１’）とを有することを特徴とする。
本発明４のフレキシブルディスプレイ用ヒンジ機構は、本発明１ないし３から選択される１項において、前記第１の筐体及び前記第２の筐体の折り畳み部の辺の長さに応じて必要な個数の前記フレキシブルディスプレイ用ヒンジ機構を使用することを特徴とする。 In the first aspect of the present invention, the hinge mechanism for a flexible display according to the second aspect of the present invention includes the first housing and the first auxiliary link (7, 8) and the second housing and the second auxiliary link (7). ', 8') is characterized in that it is fixed integrally.
In the first or second aspect of the present invention, the hinge mechanism for a flexible display of the third invention has one end swingably supported across the first auxiliary swing link (7, 8) to provide the flexible display. One end is swingable across the first support plate (11) whose other end is in contact with the curved portion of the flexible display when bent and the second auxiliary swing link (7', 8'). It is characterized in that the other end of the flexible display has a second support plate (11') in contact with the curved portion of the flexible display when the flexible display is bent.
The hinge mechanism for a flexible display of the present invention 4 is required in item 1 selected from the present inventions 1 to 3, depending on the length of the side of the folded portion of the first housing and the second housing. It is characterized in that a number of the hinge mechanisms for flexible displays are used.

本発明のフレキシブルディスプレイ用ヒンジ機構は、フレキシブルディスプレイの湾曲部を左右均等に支持しながら折り曲げるため、円滑に内側に折り曲げることができ、安定的に想定内の円弧に形成することが可能となる。また、折り畳み部の辺の長さが異なる複数の種類のモバイル用電子機器に共通に使用できるため、量産が可能で製造コストを低減できる。 Since the hinge mechanism for a flexible display of the present invention bends while supporting the curved portion of the flexible display evenly on the left and right, it can be smoothly bent inward and can be stably formed into an expected arc. Further, since it can be commonly used for a plurality of types of mobile electronic devices having different side lengths of the folded portion, mass production is possible and the manufacturing cost can be reduced.

図１は、本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構を備えたモバイル用電子機器を示し、筐体を１８０度開いた状態を示す全体斜視図である。FIG. 1 is an overall perspective view showing a mobile electronic device provided with a hinge mechanism for a flexible display according to an embodiment of the present invention, showing a state in which the housing is opened 180 degrees. 図２は、本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構を示し、１８０度開いた状態を示す全体斜視図である。FIG. 2 is an overall perspective view showing a hinge mechanism for a flexible display according to an embodiment of the present invention and showing a state of being opened 180 degrees. 図３は、図２の分解斜視図である。FIG. 3 is an exploded perspective view of FIG. 図４は、図２の平面図である。FIG. 4 is a plan view of FIG. 図５（ａ）は、図４のＰ矢視図、図５（ｂ）は図４のＡ−Ａ断面図である。5 (a) is a view taken along the line P of FIG. 4, and FIG. 5 (b) is a cross-sectional view taken along the line AA of FIG. 図６は、図４のＢ−Ｂ断面図である。FIG. 6 is a cross-sectional view taken along the line BB of FIG. 図７は、本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構を内側に９０度折り畳んだ状態を示す平面図である。FIG. 7 is a plan view showing a state in which the hinge mechanism for a flexible display according to the embodiment of the present invention is folded 90 degrees inward. 図８は、図７のＣ−Ｃ断面図である。FIG. 8 is a cross-sectional view taken along the line CC of FIG. 図９は、本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構を内側に１８０度折り畳んだ状態を示す全体斜視図である。FIG. 9 is an overall perspective view showing a state in which the hinge mechanism for a flexible display according to the embodiment of the present invention is folded 180 degrees inward. 図１０（ａ）は、図９のＱ矢視図、図１０（ｂ）は図１０（ａ）のＲ矢視図である。10 (a) is a Q arrow view of FIG. 9, and FIG. 10 (b) is an R arrow view of FIG. 10 (a). 図１１（ａ）は、図１０（ａ）のＤ−Ｄ断面図、図１１（ｂ）は図１０（ａ）のＥ−Ｅ断面図である。11 (a) is a sectional view taken along the line DD of FIG. 10 (a), and FIG. 11 (b) is a sectional view taken along the line EE of FIG. 10 (a).

以下、本発明の実施の形態を図面に基づいて説明する。図１は本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構１を備えたモバイル用電子機器２００を示し、筐体を１８０度開いた状態を示す全体斜視図である。図１に示すように、携帯電話等のモバイル用電子機器２００は、第１の筐体２０１と第２の筐体２０２で構成されている。第１の筐体２０１の左端部と第２の筐体２０２の右端部がフレキシブルディスプレイ用ヒンジ機構１で二つ折りに折り畳み可能に連結されている。フレキシブルディスプレイ用ヒンジ機構１は、第１の筐体２０１の左端部と第２の筐体２０２の右端部に各々２本のビス２０３、２０３で固定されている。第１の筐体２０１の内面２０１Ａと第２の筐体２０２の内面２０２Ａには、有機ＥＬ等のフレキシブルディスプレイ２０４の表示面２０４Ａの裏面２０４Ｂが貼り付けて固定されている。従って、第１の筐体２０１と第２の筐体２０２を二つ折りに折り畳んだ状態で、フレキシブルディスプレイ２０４の表示面２０４Ａが内面２０１Ａ、２０２Ａ側になる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall perspective view showing a mobile electronic device 200 provided with a hinge mechanism 1 for a flexible display according to an embodiment of the present invention, showing a state in which the housing is opened 180 degrees. As shown in FIG. 1, a mobile electronic device 200 such as a mobile phone is composed of a first housing 201 and a second housing 202. The left end of the first housing 201 and the right end of the second housing 202 are foldably connected by the flexible display hinge mechanism 1. The hinge mechanism 1 for a flexible display is fixed to the left end of the first housing 201 and the right end of the second housing 202 by two screws 203 and 203, respectively. The back surface 204B of the display surface 204A of the flexible display 204 such as an organic EL is attached and fixed to the inner surface 201A of the first housing 201 and the inner surface 202A of the second housing 202. Therefore, the display surface 204A of the flexible display 204 is on the inner surfaces 201A and 202A in a state where the first housing 201 and the second housing 202 are folded in half.

図２は本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構１を示し、１８０度開いた状態を示す全体斜視図、図３は図２の分解斜視図、図４は図２の平面図である。図５（ａ）は図４のＰ矢視図、図５（ｂ）は図４のＡ−Ａ断面図、図６は図４のＢ−Ｂ断面図である。図２から図６に示すように、フレキシブルディスプレイ用ヒンジ機構１は、第１の揺動リンク２、第２の揺動リンク２’、ラック３、４、ラック保持部材５、６、第１の補助揺動リンク７、８、第２の補助揺動リンク７’、８’、保持部材９、１０、第１の支持プレート１１、第２の支持プレート１１’で構成され、ユニットとして使用される。図１の携帯電話では、折り曲げ部の辺の長さＬが短いため、１個のフレキシブルディスプレイ用ヒンジ機構１を使用している。 FIG. 2 shows the hinge mechanism 1 for a flexible display according to the embodiment of the present invention, and is an overall perspective view showing a state of being opened 180 degrees, FIG. 3 is an exploded perspective view of FIG. 2, and FIG. 4 is a plan view of FIG. .. 5 (a) is a view taken along the line P of FIG. 4, FIG. 5 (b) is a sectional view taken along the line AA of FIG. 4, and FIG. 6 is a sectional view taken along the line BB of FIG. As shown in FIGS. 2 to 6, the flexible display hinge mechanism 1 includes a first swing link 2, a second swing link 2', racks 3, 4, and rack holding members 5, 6, and first. It is composed of auxiliary rocking links 7, 8 and second auxiliary rocking links 7'and 8', holding members 9, 10 and a first support plate 11 and a second support plate 11', and is used as a unit. .. In the mobile phone of FIG. 1, since the length L of the side of the bent portion is short, one hinge mechanism 1 for a flexible display is used.

第１の補助揺動リンク７、８には各々ビス孔７７、８７（図２参照）が形成され、第１の補助揺動リンク７、８は第１の筐体２０１の左端部に各々１本のビス２０３で固定されている。第１の揺動リンク２にはキー軸２３、２３、嵌合孔２４、２４が同軸に形成されている。第１の補助揺動リンク７には貫通したキー孔７２が形成され、また、円筒状の軸部７３、７３が同軸に形成されている。第１の補助揺動リンク７に形成されたキー孔７２に一方のキー軸２３が嵌合し、第１の補助揺動リンク７に形成された一方の軸部７３に一方の嵌合孔２４が嵌合している。 Screw holes 77 and 87 (see FIG. 2) are formed in the first auxiliary rocking links 7 and 8, respectively, and the first auxiliary rocking links 7 and 8 are 1 in the left end portion of the first housing 201, respectively. It is fixed with the screw 203 of the book. Key shafts 23, 23 and fitting holes 24, 24 are coaxially formed on the first swing link 2. A penetrating key hole 72 is formed in the first auxiliary rocking link 7, and cylindrical shaft portions 73, 73 are coaxially formed. One key shaft 23 is fitted into the key hole 72 formed in the first auxiliary rocking link 7, and one fitting hole 24 is fitted in one shaft portion 73 formed in the first auxiliary rocking link 7. Are fitted.

また、第１の補助揺動リンク８には貫通したキー孔８２が形成され、また、円筒状の軸部８３、８３が同軸に形成されている。第１の補助揺動リンク８に形成されたキー孔８２に一方のキー軸２３が嵌合し、第１の補助揺動リンク８に形成された一方の軸部８３に一方の嵌合孔２４が嵌合している。従って、第１の補助揺動リンク７、８と第１の揺動リンク２は一体に固定されて、第１の筐体２０１と共に折り畳み可能に連結されている。 Further, a key hole 82 penetrating the first auxiliary rocking link 8 is formed, and cylindrical shaft portions 83, 83 are formed coaxially. One key shaft 23 is fitted into the key hole 82 formed in the first auxiliary rocking link 8, and one fitting hole 24 is fitted in one shaft portion 83 formed in the first auxiliary rocking link 8. Are fitted. Therefore, the first auxiliary rocking links 7 and 8 and the first rocking link 2 are integrally fixed and foldably connected together with the first housing 201.

第２の補助揺動リンク７’、８’には各々ビス孔７７’、８７’（図２参照）が形成され、第２の補助揺動リンク７’、８’は、第２の筐体２０２の左端部に各々１本のビス２０３で固定されている。第２の揺動リンク２’にはキー軸２３’、２３’、嵌合孔２４’、２４’が同軸に形成されている。第２の補助揺動リンク７’には貫通したキー孔７２’が形成され、また、円筒状の軸部７３’、７３’が同軸に形成されている。第２の補助揺動リンク７’に形成されたキー孔７２’に一方のキー軸２３’が嵌合し、第２の補助揺動リンク７’に形成された一方の軸部７３’に一方の嵌合孔２４’が嵌合している。 Screw holes 77'and 87'(see FIG. 2) are formed in the second auxiliary rocking links 7'and 8', respectively, and the second auxiliary rocking links 7'and 8'are the second housing. It is fixed to the left end of 202 with one screw 203 each. Key shafts 23', 23', and fitting holes 24', 24'are coaxially formed on the second swing link 2'. A penetrating key hole 72'is formed in the second auxiliary rocking link 7', and cylindrical shaft portions 73'and 73' are formed coaxially. One key shaft 23'fits into the key hole 72'formed in the second auxiliary rocking link 7', and one to the one shaft portion 73'formed in the second auxiliary rocking link 7'. Fitting hole 24'is fitted.

また、第２の補助揺動リンク８’には貫通したキー孔８２’が形成され、また、円筒状の軸部８３’、８３’が同軸に形成されている。第２の補助揺動リンク８’に形成されたキー孔８２’に一方のキー軸２３’が嵌合し、第２の補助揺動リンク８’に形成された一方の軸部８３’に一方の嵌合孔２４’が嵌合している。従って、第２の補助揺動リンク７’、８’と第２の揺動リンク２’は一体に固定されて、第２の筐体２０２と共に折り畳み可能に連結されている。 Further, a penetrating key hole 82'is formed in the second auxiliary rocking link 8', and cylindrical shaft portions 83'and 83'are coaxially formed. One key shaft 23'fits into the key hole 82'formed in the second auxiliary rocking link 8', and one to the one shaft portion 83'formed in the second auxiliary rocking link 8'. Fitting hole 24'is fitted. Therefore, the second auxiliary rocking links 7'and 8'and the second rocking link 2'are fixed integrally and are foldably connected together with the second housing 202.

第１の揺動リンク２と第２の揺動リンク２’は同一形状で、線対称に配置されている。また、第１の補助揺動リンク７、８と第２の補助揺動リンク７’、８’も同一形状で、第１の補助揺動リンク７と第２の補助揺動リンク７’、及び、第１の補助揺動リンク８と第２の補助揺動リンク８’が線対称に配置されている。第１の揺動リンク２、第２の揺動リンク２’、第１の補助揺動リンク７、８、第２の補助揺動リンク７’、８’には、各々同一形状の傾斜アーム部２５、２５’、７５、７５’、８５、８５’が形成されている。第１の揺動リンク２の傾斜アーム部２５の先端には、同軸の二つの円筒状の第１揺動部２１、２１と、第１揺動部２１、２１と同軸の第１ピニオン２２が形成されている。また、第１の補助揺動リンク７、８の傾斜アーム部７５、８５の先端には、前記第１揺動部２１、２１と同軸の二つの円筒状の第１補助揺動部７１、７１、８１、８１が形成されている。 The first rocking link 2 and the second rocking link 2'have the same shape and are arranged line-symmetrically. Further, the first auxiliary rocking links 7 and 8 and the second auxiliary rocking links 7'and 8'have the same shape, and the first auxiliary rocking link 7 and the second auxiliary rocking link 7'and the second auxiliary rocking link 7'and , The first auxiliary rocking link 8 and the second auxiliary rocking link 8'are arranged line-symmetrically. The first rocking link 2, the second rocking link 2', the first auxiliary rocking links 7 and 8, and the second auxiliary rocking links 7'and 8'are tilted arm portions having the same shape. 25, 25', 75, 75', 85, 85'are formed. At the tip of the tilt arm portion 25 of the first swing link 2, two coaxial first swing portions 21 and 21 and a first pinion 22 coaxial with the first swing portions 21 and 21 are provided. It is formed. Further, at the tips of the inclined arm portions 75 and 85 of the first auxiliary rocking links 7 and 8, two cylindrical first auxiliary rocking portions 71 and 71 coaxial with the first swinging portions 21 and 21. , 81, 81 are formed.

同様に、第２の揺動リンク２’の傾斜アーム部２５’の先端には、同軸の二つの円筒状の第２揺動部２１’、２１’と、第２揺動部２１’、２１’と同軸の第２ピニオン２２’が形成されている。また、第２の補助揺動リンク７’、８’の傾斜アーム部７５’、８５’の先端には、前記第２揺動部２１’、２１’と同軸の二つの円筒状の第２補助揺動部７１’、７１’、８１’、８１’が形成されている。第１揺動部２１、２１及び第２揺動部２１’、２１’を挟んで二つのラック保持部材５、６が配置されている。ラック保持部材５、６には貫通した二つのガイド孔５１、５１、６１、６１が各々形成され、第１揺動部２１、２１及び第２揺動部２１’、２１’が揺動自在に支承されている。また、ラック保持部材５の二つのガイド孔５１、５１が、第１補助揺動部７１及び第２補助揺動部７１’を揺動自在に支承している。同様に、ラック保持部材６の二つのガイド孔６１、６１が、第１補助揺動部８１及び第２補助揺動部８１’を揺動自在に支承している。 Similarly, at the tip of the inclined arm portion 25'of the second swing link 2', two coaxial cylindrical second swing portions 21', 21'and a second swing portion 21', 21' A second pinion 22'coaxial with the'is formed. Further, at the tips of the inclined arm portions 75'and 85'of the second auxiliary swinging links 7'and 8', two cylindrical second auxiliary swings coaxial with the second swinging portions 21'and 21'. The swinging portions 71', 71', 81', 81'are formed. Two rack holding members 5 and 6 are arranged so as to sandwich the first swinging portions 21 and 21 and the second swinging portions 21'and 21'. Two guide holes 51, 51, 61, 61 are formed in the rack holding members 5 and 6, respectively, and the first swinging portions 21, 21 and the second swinging portions 21', 21'can swing freely. It is supported. Further, the two guide holes 51, 51 of the rack holding member 5 swingably support the first auxiliary rocking portion 71 and the second auxiliary rocking portion 71'. Similarly, the two guide holes 61, 61 of the rack holding member 6 swingably support the first auxiliary rocking portion 81 and the second auxiliary rocking portion 81'.

第１の補助揺動リンク７及び第２の補助揺動リンク７’をラック保持部材５との間に挟んで保持部材９が配置されている。保持部材９には貫通した二つのガイド孔９１、９１が形成され、第１補助揺動部７１及び第２補助揺動部７１’を揺動自在に支承している。ラック保持部材５の軸部５３が保持部材９の嵌合孔９４に嵌合して、ラック保持部材５と保持部材９が結合している。同様に、第１の補助揺動リンク８及び第２の補助揺動リンク８’をラック保持部材６との間に挟んで保持部材１０が配置されている。保持部材１０には貫通した二つのガイド孔１０１、１０１が形成され、第１補助揺動部８１及び第２補助揺動部８１’を揺動自在に支承している。ラック保持部材６の軸部６３が保持部材１０の嵌合孔１０４に嵌合して、ラック保持部材６と保持部材１０が結合している。従って、第１の補助揺動リンク７、８、第１の揺動リンク２は、ラック保持部材５、６と保持部材９、１０に挟まれて、揺動自在に支承されている。同様に、第２の補助揺動リンク７’、８’、第２の揺動リンク２’は、ラック保持部材５、６と保持部材９、１０に挟まれて、揺動自在に支承されている。 The holding member 9 is arranged so that the first auxiliary rocking link 7 and the second auxiliary rocking link 7'are sandwiched between the rack holding member 5 and the rack holding member 5. Two guide holes 91 and 91 that penetrate the holding member 9 are formed, and the first auxiliary rocking portion 71 and the second auxiliary rocking portion 71'are supported so as to be swingable. The shaft portion 53 of the rack holding member 5 is fitted into the fitting hole 94 of the holding member 9, and the rack holding member 5 and the holding member 9 are connected to each other. Similarly, the holding member 10 is arranged so that the first auxiliary rocking link 8 and the second auxiliary rocking link 8'are sandwiched between the rack holding member 6 and the rack holding member 6. Two guide holes 101 and 101 that penetrate the holding member 10 are formed, and the first auxiliary rocking portion 81 and the second auxiliary rocking portion 81'are swingably supported. The shaft portion 63 of the rack holding member 6 is fitted into the fitting hole 104 of the holding member 10, and the rack holding member 6 and the holding member 10 are connected to each other. Therefore, the first auxiliary rocking links 7, 8 and the first rocking link 2 are sandwiched between the rack holding members 5 and 6 and the holding members 9 and 10, and are swingably supported. Similarly, the second auxiliary swing links 7'and 8'and the second swing link 2'are sandwiched between the rack holding members 5 and 6 and the holding members 9 and 10 and are oscillatingly supported. There is.

第１の揺動リンク２、第２の揺動リンク２’とラック保持部材５に挟まれてラック３が配置されている。また、第１の揺動リンク２、第２の揺動リンク２’とラック保持部材６に挟まれてラック４が配置されている。ラック３はラック保持部材５のガイド溝５２に図３の上下方向に移動自在に支承され、ラック４はラック保持部材６のガイド溝６２に図３の上下方向に移動自在に支承されている。ラック３には第１ピニオン２２に噛み合う第１ラック歯３１と、第２ピニオン２２’に噛み合う第２ラック歯３１’が形成されている。同様に、ラック４には第１ピニオン２２に噛み合う第１ラック歯４１と、第２ピニオン２２’に噛み合う第２ラック歯４１’が形成されている。従って、第１の筐体２０１と第２の筐体２０２を折り畳んだり開いたりすると、第１の揺動リンク２、第２の揺動リンク２’が揺動するが、第１ピニオン２２、第２ピニオン２２’に噛み合うラック３、ラック４が上下して、第１の揺動リンク２と第２の揺動リンク２’を同期して揺動させる。 The rack 3 is arranged between the first rocking link 2, the second rocking link 2'and the rack holding member 5. Further, the rack 4 is arranged between the first rocking link 2, the second rocking link 2'and the rack holding member 6. The rack 3 is movably supported in the guide groove 52 of the rack holding member 5 in the vertical direction of FIG. 3, and the rack 4 is movably supported in the guide groove 62 of the rack holding member 6 in the vertical direction of FIG. The rack 3 is formed with a first rack tooth 31 that meshes with the first pinion 22 and a second rack tooth 31'that meshes with the second pinion 22'. Similarly, the rack 4 is formed with a first rack tooth 41 that meshes with the first pinion 22 and a second rack tooth 41'that meshes with the second pinion 22'. Therefore, when the first housing 201 and the second housing 202 are folded or opened, the first rocking link 2 and the second rocking link 2'swing, but the first pinion 22 and the first pinion 22 The racks 3 and 4 that mesh with the 2 pinion 22'up and down to swing the first swing link 2 and the second swing link 2'synchronically.

第１の補助揺動リンク７、８に跨がって、第１の支持プレート１１の一端が揺動自在に支承されている。また、第２の補助揺動リンク７’、８’に跨がって、第２の支持プレート１１’の一端が揺動自在に支承されている。すなわち、第１の支持プレート１１の一端にはガイド孔１１１、１１１が形成され、第１の補助揺動リンク７の軸部７３と、第１の補助揺動リンク８の軸部８３に揺動自在に支承されている。同様に、第２の支持プレート１１’の一端にはガイド孔１１１’、１１１’が形成され、第２の補助揺動リンク７’の軸部７３’と、第２の補助揺動リンク８’の軸部８３’に揺動自在に支承されている。第１の支持プレート１１、第２の支持プレート１１’の他端には平板状の支持部１１２、１１２’が形成されている。 One end of the first support plate 11 is swingably supported across the first auxiliary swing links 7 and 8. Further, one end of the second support plate 11'is swingably supported across the second auxiliary rocking links 7'and 8'. That is, guide holes 111 and 111 are formed at one end of the first support plate 11, and swing to the shaft portion 73 of the first auxiliary swing link 7 and the shaft portion 83 of the first auxiliary swing link 8. It is freely supported. Similarly, guide holes 111'and 111'are formed at one end of the second support plate 11', and the shaft portion 73'of the second auxiliary rocking link 7'and the second auxiliary rocking link 8' It is swingably supported by the shaft portion 83'. Flat plate-shaped support portions 112 and 112'are formed at the other ends of the first support plate 11 and the second support plate 11'.

図５に示すように、第１の筐体２０１と第２の筐体２０２を１８０度開いた状態では、支持部１１２、１１２’の裏面１１２Ｂ、１１２’Ｂが保持部材９の両側の上面９２、９２と、保持部材１０の両側の上面１０２、１０２に当接する。従って、支持部１１２、１１２’の表面１１２Ａ、１１２’Ａが同一平面上に整列して、フレキシブルディスプレイ２０４の裏面２０４Ｂを平坦な状態に支持する。保持部材９の中央部の上面９５と、保持部材１０の中央部の上面１０５も、支持部１１２、１１２’の表面１１２Ａ、１１２’Ａと同一平面上に整列して、フレキシブルディスプレイ２０４の裏面２０４Ｂを平坦な状態に支持する。さらに、ラック保持部材５の上面５４とラック保持部材６の上面６４も、支持部１１２、１１２’の表面１１２Ａ、１１２’Ａと同一平面上に整列して、フレキシブルディスプレイ２０４の裏面２０４Ｂを平坦な状態に支持する。また、図６に示すように、第１の筐体２０１と第２の筐体２０２を１８０度開いた状態では、ラック３、ラック４は最下端に位置している。 As shown in FIG. 5, when the first housing 201 and the second housing 202 are opened 180 degrees, the back surfaces 112B and 112'B of the support portions 112 and 112'are the upper surfaces 92 on both sides of the holding member 9. , 92 and the upper surfaces 102, 102 on both sides of the holding member 10. Therefore, the front surfaces 112A and 112'A of the support portions 112 and 112'are aligned on the same plane to support the back surface 204B of the flexible display 204 in a flat state. The upper surface 95 of the central portion of the holding member 9 and the upper surface 105 of the central portion of the holding member 10 are also aligned on the same plane as the front surfaces 112A and 112'A of the support portions 112 and 112', and the back surface 204B of the flexible display 204. Supports in a flat state. Further, the upper surface 54 of the rack holding member 5 and the upper surface 64 of the rack holding member 6 are also aligned on the same plane as the front surfaces 112A and 112'A of the support portions 112 and 112', and the back surface 204B of the flexible display 204 is flat. Support the condition. Further, as shown in FIG. 6, when the first housing 201 and the second housing 202 are opened 180 degrees, the rack 3 and the rack 4 are located at the lowermost ends.

図７は本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構１を内側に９０度折り畳んだ状態を示す平面図、図８は図７のＣ−Ｃ断面図である。図８に示すように、フレキシブルディスプレイ用ヒンジ機構１を内側に９０度折り畳むと、フレキシブルディスプレイ２０４の折り曲げ部が図８の下側に凸の円弧状に湾曲する。その結果、フレキシブルディスプレイ２０４の湾曲部の裏面２０４Ｂが、支持部１１２、１１２’の表面１１２Ａ、１１２’Ａを下方に押し付ける。その結果、第１の支持プレート１１が軸部７３、８３を中心にして反時計方向に揺動し、第２の支持プレート１１’が軸部７３’、８３’を中心にして時計方向に揺動する。第１の支持プレート１１、第２の支持プレート１１’の揺動角度は、支持部１１２、１１２’の裏面１１２Ｂ、１１２’Ｂと上面９２、上面１０２との接触によって均等になるように規制される。保持部材９の上面９２、９２の内側と、保持部材１０の上面１０２、１０２の内側には、下側に凸の半円形溝９３、９３、１０３、１０３が形成されている。従って、支持部１１２、１１２’の先端が半円形溝９３、９３、１０３、１０３に入り込み、第１の支持プレート１１、第２の支持プレート１１’の揺動が可能になっている。その結果、支持部１１２、１１２’の裏面１１２Ｂ、１１２’Ｂが傾斜アーム部２５、２５’、７５、７５’、８５、８５’の上面の傾斜面２６、２６’、７６、７６’、８６、８６’に接近し、支持部１１２、１１２’の表面１１２Ａ、１１２’Ａがフレキシブルディスプレイ２０４の湾曲部を左右均等に支持しながら折り曲げるため、円滑に内側に折り曲げることが可能となる。 FIG. 7 is a plan view showing a state in which the hinge mechanism 1 for a flexible display according to the embodiment of the present invention is folded 90 degrees inward, and FIG. 8 is a sectional view taken along the line CC of FIG. As shown in FIG. 8, when the hinge mechanism 1 for a flexible display is folded 90 degrees inward, the bent portion of the flexible display 204 is curved in a convex arc shape downward in FIG. As a result, the back surface 204B of the curved portion of the flexible display 204 presses the surfaces 112A and 112'A of the support portions 112 and 112'downward. As a result, the first support plate 11 swings counterclockwise around the shafts 73 and 83, and the second support plate 11'sways clockwise around the shafts 73' and 83'. Move. The swing angles of the first support plate 11 and the second support plate 11'are regulated to be uniform by the contact between the back surfaces 112B and 112'B of the support portions 112 and 112'and the upper surface 92 and the upper surface 102. To. Semi-circular grooves 93, 93, 103, 103 that are convex downward are formed inside the upper surfaces 92, 92 of the holding member 9 and inside the upper surfaces 102, 102 of the holding member 10. Therefore, the tips of the support portions 112 and 112'enter the semicircular grooves 93, 93, 103 and 103, and the first support plate 11 and the second support plate 11'can swing. As a result, the back surfaces 112B and 112'B of the support portions 112 and 112'are the inclined surfaces 26, 26', 76, 76' and 86 on the upper surfaces of the inclined arm portions 25, 25', 75, 75', 85 and 85'. , 86', and the surfaces 112A and 112'A of the support portions 112 and 112' bend while supporting the curved portion of the flexible display 204 evenly on the left and right, so that the flexible display 204 can be smoothly bent inward.

図９は本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構１を内側に１８０度折り畳んだ状態を示す全体斜視図、図１０（ａ）は図９のＱ矢視図、図１０（ｂ）は図１０（ａ）のＲ矢視図、図１１（ａ）は図１０（ａ）のＤ−Ｄ断面図、図１１（ｂ）は図１０（ａ）のＥ−Ｅ断面図である。図９から図１１に示すように、フレキシブルディスプレイ用ヒンジ機構１を内側に１８０度折り畳むと、フレキシブルディスプレイ２０４の折り曲げ部が図１０（ｂ）、図１１（ａ）、図１１（ｂ）の下側に凸の円弧状に湾曲する。図１１（ｂ）に示すように、第１の筐体２０１と第２の筐体２０２を１８０度折り畳むと、ラック３、ラック４は最上端に移動する。フレキシブルディスプレイ２０４の湾曲部の裏面２０４Ｂが、支持部１１２、１１２’の表面１１２Ａ、１１２’Ａを図１０（ｂ）、図１１（ａ）、図１１（ｂ）の左右に押し付ける。その結果、第１の支持プレート１１が軸部７３、８３を中心にして反時計方向に更に揺動し、第２の支持プレート１１’が軸部７３’、８３’を中心にして時計方向に更に揺動する。 9 is an overall perspective view showing a state in which the hinge mechanism 1 for a flexible display according to the embodiment of the present invention is folded 180 degrees inward, FIG. 10A is a view taken along the line Q of FIG. 9, and FIG. 10B is a view taken along the line Q. 10 (a) is an arrow view of R, FIG. 11 (a) is a sectional view taken along the line DD of FIG. 10 (a), and FIG. 11 (b) is a sectional view taken along the line EE of FIG. 10 (a). As shown in FIGS. 9 to 11, when the hinge mechanism 1 for a flexible display is folded 180 degrees inward, the bent portion of the flexible display 204 is below FIGS. 10 (b), 11 (a), and 11 (b). It curves in an arc shape that is convex to the side. As shown in FIG. 11B, when the first housing 201 and the second housing 202 are folded 180 degrees, the racks 3 and 4 move to the uppermost ends. The back surface 204B of the curved portion of the flexible display 204 presses the front surfaces 112A and 112'A of the support portions 112 and 112'to the left and right of FIGS. 10 (b), 11 (a) and 11 (b). As a result, the first support plate 11 further swings counterclockwise around the shafts 73 and 83, and the second support plate 11'clockwise around the shafts 73' and 83'. Further swing.

すると、支持部１１２、１１２’の先端が半円形溝９３、９３、１０３、１０３から離脱し、支持部１１２、１１２’の裏面１１２Ｂ、１１２’Ｂが傾斜アーム部２５、２５’、７５、７５’、８５、８５’の上面の傾斜面２６、２６’、７６、７６’、８６、８６’に当接する。この時、保持部材９の中央部の上面９５、保持部材１０の中央部の上面１０５、ラック保持部材５の上面５４、ラック保持部材６の上面６４が、フレキシブルディスプレイ２０４の湾曲部の裏面２０４Ｂの下端を支持する。その結果、支持部１１２、１１２’の表面１１２Ａ、１１２’Ａがフレキシブルディスプレイ２０４の湾曲部の裏面２０４Ｂを左右均等に支持しながら折り曲げが完了するため、安定的に想定内の円弧に形成することが可能となる。 Then, the tips of the support portions 112 and 112'are separated from the semicircular grooves 93, 93, 103 and 103, and the back surfaces 112B and 112'B of the support portions 112 and 112' are inclined arm portions 25, 25', 75 and 75. It abuts on the inclined surfaces 26, 26', 76, 76', 86, 86'on the upper surface of the', 85, 85'. At this time, the upper surface 95 of the central portion of the holding member 9, the upper surface 105 of the central portion of the holding member 10, the upper surface 54 of the rack holding member 5, and the upper surface 64 of the rack holding member 6 are the back surface 204B of the curved portion of the flexible display 204. Support the lower end. As a result, the front surfaces 112A and 112'A of the support portions 112 and 112'support the back surface 204B of the curved portion of the flexible display 204 evenly on the left and right, and the bending is completed. Is possible.

図１に示す本発明の実施の形態のフレキシブルディスプレイ用ヒンジ機構１は、第１の筐体２０１及び第２の筐体２０２の折り畳み部の辺の長さＬが短い携帯電話に適用した例のため、１個のフレキシブルディスプレイ用ヒンジ機構を使用している。折り畳み部の辺の長さが長いノートパソコン等の場合には、フレキシブルディスプレイ用ヒンジ機構１を折り畳み部の辺の長さに応じて必要な個数使用すれば良い。従って、折り畳み部の辺の長さが異なる複数の種類のモバイル用電子機器に共通に使用できるため、量産が可能で製造コストを低減できるため好ましい。 The hinge mechanism 1 for a flexible display according to the embodiment of the present invention shown in FIG. 1 is an example applied to a mobile phone having a short side length L of a folded portion of the first housing 201 and the second housing 202. Therefore, one hinge mechanism for flexible display is used. In the case of a notebook computer or the like having a long side of the folded portion, a required number of flexible display hinge mechanisms 1 may be used according to the length of the side of the folded portion. Therefore, since it can be commonly used for a plurality of types of mobile electronic devices having different side lengths of the folded portion, mass production is possible and the manufacturing cost can be reduced, which is preferable.

以上、本発明の実施例を説明したが、本発明はこの実施例に限定されることはない。例えば、前述した実施例では、第１の筐体２０１と第１の補助リンク７、８をビス２０３で一体に固定し、第２の筐体２０２と第２の補助リンク７’、８’をビス２０３で一体に固定している。しかし、第１の筐体２０１と第１の揺動リンク２をビス等で一体に固定し、第２の筐体２０２と第２の揺動リンク２’をビス等で一体に固定してもよい。さらに、第１の筐体２０１と第１の補助リンク７、８、第１の揺動リンク２をビス等で一体に固定し、第２の筐体２０２と第２の補助リンク７’、８’、第２の揺動リンク２’をビス等で一体に固定してもよい。 Although examples of the present invention have been described above, the present invention is not limited to these examples. For example, in the above-described embodiment, the first housing 201 and the first auxiliary links 7 and 8 are integrally fixed with screws 203, and the second housing 202 and the second auxiliary links 7'and 8'are connected. It is integrally fixed with a screw 203. However, even if the first housing 201 and the first swing link 2 are integrally fixed with screws or the like, and the second housing 202 and the second swing link 2'are integrally fixed with screws or the like. Good. Further, the first housing 201 and the first auxiliary links 7, 8 and the first swinging link 2 are integrally fixed with screws or the like, and the second housing 202 and the second auxiliary links 7', 8 are fixed integrally. ', The second swing link 2'may be integrally fixed with a screw or the like.

２００…モバイル用電子機器（携帯電話）
２０１…第１の筐体
２０１Ａ…内面
２０２…第２の筐体
２０２Ａ…内面
２０３…ビス
２０４…フレキシブルディスプレイ
２０４Ａ…表示面
２０４Ｂ…裏面
１…フレキシブルディスプレイ用ヒンジ機構
２…第１の揺動リンク
２１…第１揺動部
２２…第１ピニオン
２３…キー軸
２４…嵌合孔
２５…傾斜アーム部
２６…傾斜面
２’…第２の揺動リンク
２１’…第２揺動部
２２’…第２ピニオン
２３’…キー軸
２４’…嵌合孔
２５’…傾斜アーム部
２６’…傾斜面
３…ラック
３１…第１ラック歯
３１’…第２ラック歯
４…ラック
４１…第１ラック歯
４１’…第２ラック歯
５…ラック保持部材
５１…ガイド孔
５２…ガイド溝
５３…軸部
５４…上面
６…ラック保持部材
６１…ガイド孔
６２…ガイド溝
６３…軸部
６４…上面
７…第１の補助揺動リンク
７１…第１補助揺動部
７２…キー孔
７３…軸部
７５…傾斜アーム部
７６…傾斜面
７７…ビス孔
７’…第２の補助揺動リンク
７１’…第２補助揺動部
７２’…キー孔
７３’…軸部
７５’…傾斜アーム部
７６’…傾斜面
７７’…ビス孔
８…第１の補助揺動リンク
８１…第１補助揺動部
８２…キー孔
８３…軸部
８５…傾斜アーム部
８６…傾斜面
８７…ビス孔
８’…第２の補助揺動リンク
８１’…第２補助揺動部
８２’…キー孔
８３’…軸部
８５’…傾斜アーム部
８６’…傾斜面
８７’…ビス孔
９…保持部材
９１…ガイド孔
９２…上面
９３…半円形溝
９４…嵌合孔
９５…上面
１０…保持部材
１０１…ガイド孔
１０２…上面
１０３…半円形溝
１０４…嵌合孔
１０５…上面
１１…第１の支持プレート
１１１…ガイド孔
１１２…支持部
１１２Ａ…表面
１１２Ｂ…裏面
１１’…第２の支持プレート
１１１’…ガイド孔
１１２’…支持部
１１２’Ａ…表面
１１２’Ｂ…裏面 200 ... Mobile electronic devices (mobile phones)
201 ... First housing 201A ... Inner surface 202 ... Second housing 202A ... Inner surface 203 ... Screw 204 ... Flexible display 204A ... Display surface 204B ... Back surface 1 ... Flexible display hinge mechanism 2 ... First swing link 21 ... 1st swinging portion 22 ... 1st pinion 23 ... Key shaft 24 ... Fitting hole 25 ... Inclined arm portion 26 ... Inclined surface 2'... Second swinging link 21'... Second swinging portion 22'... Second 2 Pinion 23'... Key shaft 24'... Fitting hole 25'... Inclined arm portion 26'... Inclined surface 3 ... Rack 31 ... First rack tooth 31'... Second rack tooth 4 ... Rack 41 ... First rack tooth 41 '... 2nd rack tooth 5 ... Rack holding member 51 ... Guide hole 52 ... Guide groove 53 ... Shaft 54 ... Top surface 6 ... Rack holding member 61 ... Guide hole 62 ... Guide groove 63 ... Shaft 64 ... Top surface 7 ... First Auxiliary rocking link 71 ... 1st auxiliary rocking part 72 ... Key hole 73 ... Shaft part 75 ... Inclined arm part 76 ... Inclined surface 77 ... Screw hole 7'... Second auxiliary rocking link 71'... Second auxiliary Swinging portion 72'... Key hole 73'... Shaft portion 75'... Inclined arm portion 76'... Inclined surface 77'... Screw hole 8 ... First auxiliary rocking link 81 ... First auxiliary rocking portion 82 ... Key hole 83 ... Shaft 85 ... Tilt arm 86 ... Tilt surface 87 ... Screw hole 8'... Second auxiliary swing link 81'... Second auxiliary swing 82' ... Key hole 83' ... Shaft 85'... Tilt Arm portion 86'... Inclined surface 87' ... Screw hole 9 ... Holding member 91 ... Guide hole 92 ... Top surface 93 ... Semi-circular groove 94 ... Fitting hole 95 ... Top surface 10 ... Holding member 101 ... Guide hole 102 ... Top surface 103 ... Half Circular groove 104 ... Fitting hole 105 ... Top surface 11 ... First support plate 111 ... Guide hole 112 ... Support portion 112A ... Front surface 112B ... Back surface 11'... Second support plate 111' ... Guide hole 112' ... Support portion 112 'A ... front side 112'B ... back side

Claims

A first housing and a second housing in which adjacent ends are foldably connected in half,
In a flexible display hinge mechanism having a flexible display arranged between the inner surfaces of the first housing and the second housing, and the back surface of the display surface is arranged on the inner surface side.
It swings together with the first housing by the folding operation, and is coaxial with the two coaxial first swing portions (21, 21) provided at one end and the first swing portion (21, 21). A first swing link (2) in which a first pinion (22) is formed and swings around the first swing portion (21, 21), and
By the folding operation, it swings together with the second housing, and two coaxial second swing portions (21', 21') provided at one end and the second swing portion (21', 21'). A second pinion (22') coaxial with) is formed, and a second swing link (2') that swings around the second swing portion (21', 21') and
The first rocking portion (21, 21) and the second rocking portion (21', 21') are arranged so as to sandwich the first rocking portion (21, 21) and the second rocking portion (21, 21) and the second rocking portion (21, 21'). Two rack holding members (5, 6) that swingably support 21', 21'), and
The first rack teeth (31, 41) arranged so as to sandwich the first pinion (22) and the second pinion (22') and mesh with the first pinion (22), and the second pinion (22'). Two racks (3, 4) in which second rack teeth (31', 41') are formed and are movably supported by the two rack holding members (5, 6), respectively.
Two first swings arranged with the rack holding member (5, 6) interposed therebetween, integrally fixed to the first swing link (2), and coaxial with the first swing portion (21, 21). Two first auxiliary swing links (7, 8) that swing around the auxiliary swing portion (71, 71, 81, 81), and
The rack holding members (5, 6) are arranged so as to sandwich the rack holding member (5, 6), and are integrally fixed to the second swing link (2'), and are coaxial with the second swing portion (21', 21'). Two second auxiliary swing links (7', 8') that swing around one second auxiliary swing portion (71', 71', 81', 81'),
The first auxiliary rocking link (7, 8) and the second auxiliary rocking link (7', 8') are arranged so as to be sandwiched between the rack holding member (5, 6). The 1 auxiliary rocking portion (71, 71, 81, 81) and the second auxiliary rocking portion (71', 71', 81', 81') are placed between the rack holding member (5, 6). A hinge mechanism for a flexible display, characterized in that it is provided with two holding members (9, 10) that are swingably supported.

In the hinge mechanism for a flexible display according to claim 1,
The first housing and the first auxiliary link (7, 8) and the second housing and the second auxiliary link (7', 8') are integrally fixed. Hinge mechanism for flexible display.

In the hinge mechanism for a flexible display according to claim 1 or 2.
A first support straddling the first auxiliary swing link (7, 8), one end of which is swingably supported, and the other end of which is in contact with a curved portion of the flexible display when the flexible display is bent. Plate (11) and
A second end that straddles the second auxiliary rocking link (7', 8') and is swingably supported at one end, and the other end is in contact with the curved portion of the flexible display when the flexible display is bent. A hinge mechanism for a flexible display, characterized in that it has a support plate (11').

The hinge mechanism for a flexible display according to claim 1, which is selected from claims 1 to 3.
A hinge mechanism for a flexible display, characterized in that a required number of hinge mechanisms for a flexible display are used according to the lengths of the sides of the folded portion of the first housing and the second housing.