JP6049932B1

JP6049932B1 - Electronic device switchgear

Info

Publication number: JP6049932B1
Application number: JP2016064509A
Authority: JP
Inventors: 孝仁高橋; 光伸戸島
Original assignee: スタッフ株式会社
Priority date: 2016-03-28
Filing date: 2016-03-28
Publication date: 2016-12-21
Anticipated expiration: 2036-03-28
Also published as: JP2017180539A

Abstract

【課題】構造部品が少なく簡素化され、確実な動作もできる電子機器の開閉装置である。【解決手段】固定筐体の固定カム９に、可動筐体の可動カム７を付勢させ、回転と軸方向移動で開閉動作を行う。可動カム７に対してピン孔を介して進退自在に移動する棒状のカムピン１０を、固定カム９に保持させている。カムピン１０は、ばねの付勢で動作する回転カム９により、可動筐体が閉じた状態のときは固定的に保持され、可動カム７の動作が規制される。ワンタッチで可動筐体を開くときは、レバー１１の押圧で回転カム９を付勢力に抗して回転させカムピン１０の固定状態を解除し、可動カム７の規制を外し、可動筐体を開けるようにしている。可動筐体を開閉途中位置でも確実に停止保持でき、更に、開閉角度を１８０度以上可能とする構成である。【選択図】図４An electronic device opening / closing device that is simplified with few structural parts and can also perform reliable operations. A movable cam 7 of a movable casing is urged by a fixed cam 9 of the fixed casing, and an opening / closing operation is performed by rotation and axial movement. A fixed cam 9 holds a rod-like cam pin 10 that moves forward and backward with respect to the movable cam 7 via a pin hole. The cam pin 10 is fixedly held when the movable housing is closed by the rotating cam 9 that is operated by the bias of the spring, and the operation of the movable cam 7 is restricted. When the movable casing is opened by one touch, the rotary cam 9 is rotated against the urging force by pressing the lever 11 to release the fixed state of the cam pin 10, the regulation of the movable cam 7 is released, and the movable casing can be opened. I have to. The movable housing can be reliably stopped and held even in the middle of opening and closing, and the opening and closing angle can be 180 degrees or more. [Selection] Figure 4

Description

本発明は、携帯電話等の開閉を伴う電子機器の開閉装置に関する。更に詳しくは、携帯電話等の電子機器において、筐体を二つ折りにした折り畳み式の筐体をワンタッチ操作で開くことのできる電子機器の開閉装置に関する。 The present invention relates to an opening / closing device for an electronic device that involves opening / closing of a mobile phone or the like. More particularly, the present invention relates to an electronic device opening / closing device capable of opening a foldable casing in which the casing is folded in two by one-touch operation in an electronic apparatus such as a mobile phone.

携帯電話等の手持ち可能な小型電子機器においては、折り畳まれた２体の筐体を相互に回動して開閉するものが多い。このような電子機器は、開閉部（ヒンジ部）を有していて、２体の筐体を相互に手動で開閉させることができる。携帯電話等では、片手で持ちながらいわゆるワンタッチモーションで、閉じている一方の筐体を片手で開くことができる構造のものも知られている。これに関わる開閉装置の構造は、種々のものが提案されている。この開閉装置は、２体の筐体の一方を、即ち、キー等を有する操作部の筐体を常時手持ち状態の固定体とし、これに対し、表示部の筐体を回動可能な可動体として構成している。一般に、表示部の筐体は、相対的に手で回動し開閉させるようになっているが、操作部の筐体は片手で持ち手の平に把持されている。このような構造において、表示部の筐体の開きをワンタッチで操作でき、しかも簡素な構造で、確実な動作を行なえる機能のものが求められている。 Many hand-held small electronic devices such as cellular phones rotate and open two folded housings with respect to each other. Such an electronic device has an opening / closing part (hinge part) and can manually open and close the two casings. A cellular phone or the like is also known which has a structure in which one closed case can be opened with one hand by one-touch motion while being held with one hand. Various types of switchgear structures related to this have been proposed. In this opening / closing device, one of the two casings, that is, the casing of the operation unit having a key or the like is always a hand-held fixed body, while the movable unit is capable of rotating the casing of the display unit. It is configured as. In general, the housing of the display unit is relatively rotated and opened and closed by hand, but the housing of the operation unit is held on the palm of the hand with one hand. In such a structure, there is a demand for a function that can operate the opening of the housing of the display unit with a single touch and that can perform a reliable operation with a simple structure.

これは携帯電話等の小型電子機器は片手で操作することが多く、特に可動筐体（蓋）を有する折り畳み式の携帯電話は、この携帯電話を把持している一方の手と別の他方の手で開閉することはできるが、少しでも手の操作を早めるためと、面倒さをなくす意味合いから、可動筐体の開きを把持している一方の手のみの片手操作でできるものが普及している。これを可能にするものは開閉装置のヒンジ機構の構造によっていて、押しボタンの押圧により開くワンタッチ方式のものが多く提案されている。 This is because small electronic devices such as mobile phones are often operated with one hand, and in particular, a foldable mobile phone having a movable housing (lid) has one hand holding the mobile phone and the other hand. Although it can be opened and closed by hand, in order to speed up the operation of the hand as much as possible and from the meaning of eliminating the hassle, things that can be done with one hand only with one hand holding the opening of the movable housing have become popular Yes. What makes this possible depends on the structure of the hinge mechanism of the switchgear, and many one-touch systems that are opened by pressing a push button have been proposed.

そのヒンジ構造の例は、本発明の出願人もワンタッチ操作で開閉できる開閉装置の構成例を提案した（特許文献１参照）。又他のヒンジ構造の例として、押圧操作により反転体の反転カムを固定体の溝部にガイドされ、可動カムより軸線方向に一対の反転カムを、ばねの付勢力に抗して可動カム側より固定体側に引き戻し、可動カムを回転可能にする構成のワンタッチ方式のものも知られている（例えば、特許文献２参照）。 As an example of the hinge structure, the applicant of the present invention has proposed a configuration example of an opening / closing device that can be opened and closed by a one-touch operation (see Patent Document 1). As another example of the hinge structure, the reversing cam of the reversing body is guided by the groove portion of the fixed body by the pressing operation, and the pair of reversing cams are axially moved from the movable cam to the movable cam side against the biasing force of the spring. There is also known a one-touch type that is configured to be pulled back to the fixed body side and to make the movable cam rotatable (for example, see Patent Document 2).

特開２０１５−１５８２４１号公報JP2015-158241A 特開２００９−２６４５２７号公報JP 2009-264527 A

しかしながら、以上説明した従来の構造は、複雑な形状のカム部品が使われており、また部品点数の多い構造でもある。反転体を構成する固定体の溝をガイドにして、軸線方向へ移動させる構造のものは、反転体の形状が複雑であり、この製造方法が限定される上、構造上安定化のために当接部位が２つの部材でバランスをとり挟持する構造である。この構造は、カム部品の形状が複雑である上その動作範囲も限定され、かつ動作の安定性に欠ける。更に、この構造のカム面に対する当接部は、手動操作においては常に当接状態の安定性、耐摩耗性の確保のために硬度を要する部位であるが、その加工上の困難性もあり、設計上要求される高硬度部位にするのは限界がある。 However, in the conventional structure described above, cam parts having complicated shapes are used, and the number of parts is also large. The structure in which the groove of the fixed body constituting the reversing body is moved in the axial direction using the groove of the fixed body as a guide has a complicated shape of the reversing body, and this manufacturing method is limited. The contact portion has a structure in which two members are balanced and sandwiched. In this structure, the shape of the cam part is complicated, the operation range is limited, and the stability of the operation is lacking. Furthermore, the abutting portion with respect to the cam surface of this structure is a part that requires hardness in order to ensure the stability of the abutting state and wear resistance in manual operation, but there are also difficulties in processing, There is a limit to the high hardness part required by design.

特に、カム構造においての従来からの構成は、平面カム構造のため、上下のカムが一定の荷重で接触状態となり、開閉時の動きに対して常に擦り合わせが行なわれるという構造である。このため特に可動カム面に対しては、一定で安定した当接状態が望まれる。このことにより開閉状態が良好に維持されることになる。更に、開閉状態の途中位置でも開いた状態を維持できる構成も望まれ、又、開閉角度が１８０度以上を可能とする機能の開閉装置も望まれている。手動操作で開閉させる場合は、両方のカム部材は常にすべり接触で移動する構造である。 In particular, the conventional structure in the cam structure is a structure in which the upper and lower cams are in contact with each other with a constant load and are always rubbed against the movement during opening and closing because of the planar cam structure. For this reason, a constant and stable contact state is particularly desired for the movable cam surface. As a result, the open / closed state is maintained satisfactorily. Furthermore, a configuration that can maintain an open state even at an intermediate position of the open / close state is desired, and an open / close device having a function that enables an open / close angle of 180 degrees or more is also desired. When opening and closing by manual operation, both cam members are structured to always move by sliding contact.

この従来の構造は、ばねの付勢力で可動体が常に面すべり状態で押圧され、カム面を擦る状態になるので、大きな磨耗が発生する。この磨耗が激しいと、可動体またはカム面に変形を生じさせ、特に可動カムは磨耗が大きく停止位置が定まらず、結果的に携帯電話等の電子機器を使用中に開閉位置が狂ってしまうおそれを生じさせる。これを避けるため、特に、使用頻度が高い磨耗の伴うカム、ピン等の接触部材は構造を簡素化し、かつ安定的な動作を保証する構造が求められている。 In this conventional structure, the movable body is always pressed in a face-sliding state by the biasing force of the spring, and the cam surface is rubbed, so that a large amount of wear occurs. If this wear is severe, the movable body or cam surface will be deformed. Especially, the movable cam will be worn much and the stop position will not be determined. As a result, the open / close position may be distorted while using an electronic device such as a mobile phone. Give rise to In order to avoid this, in particular, contact members such as cams and pins with frequent wear are required to have a simplified structure and a stable operation.

本発明は以上のような技術背景のもとになされたものであり、下記目的を達成する。
本発明の目的は、構造が簡素化され、開閉動作が確実で、低コスト化を図った電子機器の開閉装置を提供することにある。
本発明の他の目的は、開閉途中の位置で、固定筐体に対し、可動筐体を開閉途中位置でも確実に停止保持できるようにした電子機器の開閉装置を提供することにある。
本発明の更に他の目的は、１８０度以上開閉可能な構造の電子機器の開閉装置を提供することにある。 The present invention has been made based on the above technical background, and achieves the following object.
SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic device opening / closing device having a simplified structure, reliable opening / closing operation, and cost reduction.
Another object of the present invention is to provide an opening / closing device for an electronic device that can reliably stop and hold a movable housing at a position in the middle of opening / closing at a position in the middle of opening / closing.
Still another object of the present invention is to provide an electronic device opening / closing device having a structure capable of opening / closing 180 degrees or more.

本発明は、前記目的を達成するため、次の手段を採る。
本発明１の電子機器の開閉装置は、
第１の筐体（２）に対して第２の筐体（３）を相互に回動可能に連結し折り畳み構造をなし、開いた状態と閉じた状態を繰り返す電子機器の開閉装置（１）であって、
前記第１の筐体（２）に固定されるホルダ（５）と、
前記第１の筐体（２）に固定して前記ホルダ（５）と一体的に設けられ、軸線方向に面したカム面（６ａ）を有する固定カム（６）と、
前記第２の筐体（３）に内蔵され前記固定カム（６）のカム面（６ａ）に対向して配置され、前記固定カム（６）に対し相対回転自在で、且つ前記軸線方向に移動可能で前記固定カム（６）のカム面（６ａ）に当接するカム部（７ａ）を有する可動カム（７）と、
前記可動カム（７）のカム部（７ａ）を前記固定カム（６）の前記固定カム（６）のカム面（６ａ）側へ付勢する第１ばね（１３）と、
前記第２の筐体（３）に固定的に設けられた保持体（４）と、
前記保持体（４）内に設けられ、前記可動カム（７）の移動姿勢を支持し、前記保持体（４）とともに回転する支持部材（８）と、
前記固定カム（６）の前記軸線方向に形成された貫通孔（６ｂ）に進退自在に保持され、一端が前記可動カム（７）のカム面（７ａ）に当接されるピン体（１０）と、
前記ホルダ（５）に回転自在に保持され、前記ピン体（１０）の他端と当接する第１カム部（９ａ）を有する回転カム（９）と、
前記回転カム（９）を回転方向に付勢する第２ばね（１４）と、
前記回転カム（９）の第２カム部（９ｂ）に当接する当接部（１１ａ）を有し、前記第２ばね（１４）の付勢力に抗し押圧することにより、前記回転カム（９）の前記第２カム部（９ｂ）を押圧して、前記第２ばね（１４）が付勢する回転方向とは逆の回転方向に前記回転カム（９）を強制的に回転させる押圧部材（１１）と、
前記押圧部材（１１）を移動自在に保持し、前記ホルダ（５）に固定される保持部材（１２）と、
前記押圧部材（１１）を前記保持部材（１２）側に付勢する第３ばね（１５）とからなる。 In order to achieve the above object, the present invention employs the following means.
The electronic device opening and closing device of the present invention 1
Electronic device opening and closing device (1) that repeats an open state and a closed state by connecting the second housing (3) to the first housing (2) so as to be pivotable to each other to form a folding structure. Because
A holder (5) fixed to the first housing (2);
A fixed cam (6) fixed to the first casing (2) and provided integrally with the holder (5) and having a cam surface (6a) facing in the axial direction;
Built in the second housing (3) and disposed opposite the cam surface (6a) of the fixed cam (6), is rotatable relative to the fixed cam (6), and moves in the axial direction. A movable cam (7) having a cam portion (7a) capable of contacting the cam surface (6a) of the fixed cam (6) ;
A first spring (13) for biasing the cam portion (7a ) of the movable cam (7) toward the cam surface (6a) of the fixed cam (6) of the fixed cam (6) ;
A holding body (4) fixedly provided on the second casing (3);
A support member (8) provided in the holding body (4), supporting the moving posture of the movable cam (7), and rotating together with the holding body (4);
A pin body (10) held in a through hole (6b) formed in the axial direction of the fixed cam (6) so as to be able to advance and retreat, and having one end abutting on the cam surface (7a) of the movable cam (7). When,
A rotating cam (9) having a first cam portion (9a) that is rotatably held by the holder (5) and abuts against the other end of the pin body (10);
A second spring (14) for urging the rotating cam (9) in the rotational direction;
The rotating cam (9) has an abutting portion (11a) that abuts against the second cam portion (9b) of the rotating cam (9) and presses against the urging force of the second spring (14), whereby the rotating cam (9 ) For pressing the second cam portion (9b) and forcibly rotating the rotary cam (9) in a rotation direction opposite to the rotation direction biased by the second spring (14). 11) and
A holding member (12) that holds the pressing member (11) movably and is fixed to the holder (5);
It consists of the 3rd spring (15) which urges | biases the said press member (11) to the said holding member (12) side .

本発明２の電子機器の開閉装置は、本発明１において、前記ピン体（１０）は、丸棒状体であり、前記貫通孔（６ｂ）が円筒孔であることを特徴とする。
本発明３の電子機器の開閉装置は、本発明１又は２において、前記ピン体（１０）の端部は、球面体であることを特徴とする。
本発明４の電子機器の開閉装置は、本発明１又は２において、前記可動カム（７）のカム面の中間位置に、軸線方向に対し略直角方向に平面形状の部位（７ｃ）を設けたことを特徴とする。 The electronic device opening and closing device of the present invention 2 is characterized in that, in the present invention 1, the pin body (10) is a round bar-like body, and the through hole (6b) is a cylindrical hole.
The opening / closing device for an electronic device according to a third aspect of the invention is characterized in that, in the first or second aspect of the invention, the end of the pin body (10) is a spherical body.
According to a fourth aspect of the present invention, there is provided the electronic apparatus opening and closing device according to the first or second aspect, wherein a planar portion (7c) is provided at an intermediate position of the cam surface of the movable cam (7) in a direction substantially perpendicular to the axial direction. It is characterized by that.

本発明の電子機器の開閉装置は、簡素な構造でワンタッチの開閉動作を実現できたので、低コストのものとなった。又、本発明は、開閉装置の内部構造において、従来の可動カムの採用に加え、ピン体構造としたことで、ワンタッチ操作の構造が簡素化された上、低コスト化が図られ、更に、開閉動作角度が大きくなった。固定カムの貫通孔で構成されるピン孔に、保持されている丸棒状のピン体を採用することにより、開閉状態の安定化が図られ、１８０度以上の開閉角度も可能となった。 The electronic apparatus opening and closing device of the present invention can realize a one-touch opening and closing operation with a simple structure, and thus is low-cost. In addition, the present invention has a pin body structure in addition to the adoption of the conventional movable cam in the internal structure of the opening / closing device, thereby simplifying the structure of one-touch operation and reducing the cost. The opening / closing operation angle has increased. By adopting a round rod-shaped pin body held in the pin hole constituted by the through hole of the fixed cam, the open / closed state is stabilized, and an open / close angle of 180 degrees or more is also possible.

更に、可動カム面の形状に略水平面（図示上）を設ける構造にしたことで、開閉途中の角度位置でも安定して筐体を停止保持できるようになった。以上の理由で、本発明の電子機器の開閉装置は、部品点数がすくないので、構造が簡素化され、開閉動作が確実で、しかも低コスト化を図ることができた。 Furthermore, since the movable cam surface has a substantially horizontal plane (shown in the figure), the housing can be stably stopped and held even at an angular position during opening and closing. For the reasons described above, the electronic device opening and closing device of the present invention has a small number of parts, so the structure is simplified, the opening and closing operation is reliable, and the cost can be reduced.

図１は、本発明の電子機器の開閉装置を適用する携帯電話の外観図である。FIG. 1 is an external view of a mobile phone to which an electronic device opening / closing device of the present invention is applied. 図２は、本発明の電子機器の開閉装置の外観図である。FIG. 2 is an external view of the electronic device opening and closing device of the present invention. 図３は、本発明の電子機器の開閉装置の部品を示す展開図である。FIG. 3 is a development view showing components of the opening / closing device of the electronic apparatus according to the present invention. 図４は、電子機器の開閉装置を外観的に示す説明図で、筐体が閉じている場合の状態を示す。FIG. 4 is an explanatory diagram showing the appearance of the opening / closing device of the electronic apparatus, and shows a state where the housing is closed. 図５は、電子機器の開閉装置を外観的に示す説明図で、筐体がワンタッチで開いた状態を示す。FIG. 5 is an explanatory diagram showing the appearance of the opening / closing device of the electronic apparatus, and shows a state where the housing is opened with one touch. 図６（ａ）〜（ｆ）は、実施の形態１の電子機器の開閉装置の動作を示し、ワンタッチの場合の説明図である。6A to 6F illustrate the operation of the opening / closing device of the electronic apparatus according to the first embodiment, and are explanatory diagrams in the case of one-touch. 図７（ａ）及び（ｂ）は、実施の形態１の電子機器の開閉装置の動作を示し、手動操作の場合の説明図である。FIGS. 7A and 7B are diagrams illustrating the operation of the opening / closing device of the electronic apparatus according to the first embodiment and illustrating the manual operation.

次に、本発明の実施の形態を図に基づき説明する。本発明は、小型の電子機器に適用されるものであるが、本実施の形態は携帯電話に適用するものとして説明する。図１の構造は、本発明を適用した折り畳み構造の携帯電話の外観図であり、開いた状態を示す。本実施の形態は、折り畳み式の携帯電話のヒンジ部に組み込まれた電子機器の開閉装置（以下、「開閉装置」という。）１である。 Next, embodiments of the present invention will be described with reference to the drawings. Although the present invention is applied to a small electronic device, this embodiment is described as being applied to a mobile phone. The structure of FIG. 1 is an external view of a cellular phone having a folding structure to which the present invention is applied, and shows an opened state. The present embodiment is an electronic device opening / closing device (hereinafter referred to as an “opening / closing device”) 1 incorporated in a hinge portion of a foldable mobile phone.

本例の折り畳み式の携帯電話は２体の筐体で構成され、一方の筐体は常時片手で手持ち状態にある固定側の固定筐体２であり、キー等の操作機能のあるものである。他方の筐体は、この固定側の固定筐体２に対し、可動可能な蓋状の可動筐体３でありヒンジ部を介して揺動する。この蓋状の可動筐体３は、表示部を構成する。可動筐体３は手動操作で開閉できるが、又、他方の手を使わずワンタッチの片手操作で開くこともできる。これらの基本構造、機能は、前述した特許文献以外にも多数のものが提案されており公知技術である。 The foldable mobile phone of this example is composed of two housings, and one housing is a fixed housing 2 on the fixed side that is always in a hand-held state with one hand, and has an operation function such as a key. . The other housing is a movable housing 3 having a lid shape that is movable with respect to the stationary housing 2 on the stationary side, and swings through a hinge portion. The lid-shaped movable casing 3 constitutes a display unit. The movable housing 3 can be opened and closed manually, but can also be opened by one-touch one-hand operation without using the other hand. Many of these basic structures and functions have been proposed in addition to the aforementioned patent documents, and are well-known techniques.

本発明はこれらの機器のヒンジ部に関わり、以下、本発明に関わる開閉装置１の構造を詳細に説明する。図２〜図７をもとに、実施の形態の開閉装置１の構造及び動作を詳細に説明する。図２は、筐体のない状態の開閉装置１の全体を示す外観図である。図３は、開閉装置１の構成部品を示す展開図である。開閉装置１は、図３に示すように、主な部品として、ケース４、ホルダ５、カム面６ａを有する固定カム６、カム部７ａを有する可動カム７、支持部材８、回転カム９、カムピン１０、レバー１１、このレバー１１を保持する保持部材１２、付勢部材としてばね１３、１４、１５等で構成されている。 The present invention relates to the hinge portion of these devices, and the structure of the opening / closing device 1 according to the present invention will be described in detail below. Based on FIGS. 2-7, the structure and operation | movement of the switchgear 1 of embodiment are demonstrated in detail. FIG. 2 is an external view showing the entirety of the opening / closing device 1 without a housing. FIG. 3 is a development view showing components of the switchgear 1. As shown in FIG. 3, the opening / closing apparatus 1 includes, as main components, a case 4, a holder 5, a fixed cam 6 having a cam surface 6a, a movable cam 7 having a cam portion 7a, a support member 8, a rotating cam 9, and a cam pin. 10, a lever 11, a holding member 12 for holding the lever 11, and springs 13, 14, 15 and the like as biasing members.

図４は、電子機器の開閉装置１を立体状の模式図として示す説明図であり、前述した２つの固定筐体２、可動筐体３が閉じている場合の状態を示す。図５は、実施の形態１の電子機器の開閉装置１を立体状の模式図として示す説明図であり、ワンタッチで可動筐体３が開き始める状態を示している。図６は、開閉装置１の開閉に伴う動作の工程を示し、ワンタッチの場合の説明図である。図７は、開閉装置１の開閉に伴う動作の工程を示し、手動操作の場合の説明図である。 FIG. 4 is an explanatory diagram showing the opening / closing device 1 of the electronic device as a three-dimensional schematic diagram, and shows a state where the two fixed housings 2 and the movable housing 3 described above are closed. FIG. 5 is an explanatory diagram showing the opening / closing device 1 of the electronic device according to the first embodiment as a three-dimensional schematic diagram, and shows a state in which the movable housing 3 starts to open with one touch. FIG. 6 is a diagram illustrating an operation process associated with opening / closing of the opening / closing device 1, and is an explanatory diagram in the case of one touch. FIG. 7 is a diagram illustrating an operation process associated with opening / closing of the opening / closing device 1, and is an explanatory diagram in the case of manual operation.

ホルダ５は、固定筐体２に固定されるとともに、外周のつば部を介して固定カム６を一体的に結合し固定している。従って、固定カム６は、可動筐体３の開閉動作に関わらず固定状態を維持している。この固定カム６のカム面６ａに、対向して可動カム７のカム部７ａが当接されている。可動カム７は、第１ばね１３の付勢力（Ｆ１）で、ホルダ５に固定されている固定カム６側に押されている。従って、可動カム７は、回動可能で、且つ軸線方向にも移動可能である。即ち、カム面６ａ側に位置するカム部７ａが、可動カム７の自転に伴い、固定カム６のカム面６ａに当接しながら、可動カム７は自転しながら軸線方向に移動する。 The holder 5 is fixed to the fixed housing 2 and integrally fixed to the fixed cam 6 via a flange portion on the outer periphery. Therefore, the fixed cam 6 maintains a fixed state regardless of the opening / closing operation of the movable casing 3. The cam portion 7a of the movable cam 7 is in contact with the cam surface 6a of the fixed cam 6 so as to face the cam surface 6a. The movable cam 7 is pushed toward the fixed cam 6 fixed to the holder 5 by the urging force (F1) of the first spring 13. Therefore, the movable cam 7 can rotate and can also move in the axial direction. That is, the cam portion 7a located on the cam surface 6a side contacts the cam surface 6a of the fixed cam 6 as the movable cam 7 rotates, and the movable cam 7 moves in the axial direction while rotating.

固定カム６は、筒状体で軸線方向の端部に位置してカム面６ａを有している。このカム面６ａの筒状の一部に、この中心軸線と平行な方向に貫通孔であるピン孔６ｂが設けられている。このピン孔６ｂには、カムピン１０が軸線方向に摺動自在に挿入されている。カムピン１０は、中実の丸棒状体である。カムピン１０は、ピン孔６ｂ内を自転することも可能であり、制約なしに進退移動する。カムピン１０を単純な丸棒状体としたことで、旋削加工等が容易な上、耐摩耗性のある高硬度の部材で作ることができる。 The fixed cam 6 is a cylindrical body and is located at an end in the axial direction and has a cam surface 6a. A pin hole 6b, which is a through hole, is provided in a part of the cylindrical surface of the cam surface 6a in a direction parallel to the central axis. A cam pin 10 is inserted into the pin hole 6b so as to be slidable in the axial direction. The cam pin 10 is a solid round bar. The cam pin 10 can rotate in the pin hole 6b, and moves forward and backward without restriction. Since the cam pin 10 is a simple round bar-like body, it can be easily made by turning and the like and can be made of a highly hard member having wear resistance.

本実施の形態においてカムピン１０は、その断面形状が円の丸棒状体が好ましいとしているが、矩形状のものであってもよい。カムピン１０の両端部は半球状体をなしている。このことは、カムピン１０の半球状体がカム面に当接したとき、運動がフリーで安定した接触を保つので運動と力の伝達が円滑にできる。カムピン１０の可動カム７の端部は、固定カム６のカム面６ａから張り出し、可動カム７のカム面７ａに当接している。又、固定カム６を挟んで、可動カム７の反対側には、固定カム６に隣接して回転カム９が配置されている。この回転カム９は、軸線方向の移動が規制され回転自在にホルダ５に支持されている。この回転カム９には、傾斜面を有する２つのカム部が軸線方向に相対して設けられている。 In the present embodiment, the cam pin 10 is preferably a round bar having a circular cross section, but may be rectangular. Both ends of the cam pin 10 are hemispherical. This means that when the hemispherical body of the cam pin 10 comes into contact with the cam surface, the movement is free and stable contact is maintained, so that the movement and force can be transmitted smoothly. The end of the movable cam 7 of the cam pin 10 protrudes from the cam surface 6 a of the fixed cam 6 and is in contact with the cam surface 7 a of the movable cam 7. A rotating cam 9 is disposed adjacent to the fixed cam 6 on the opposite side of the movable cam 7 across the fixed cam 6. The rotation cam 9 is supported by the holder 5 so that its movement in the axial direction is restricted and is rotatable. The rotating cam 9 is provided with two cam portions having inclined surfaces opposed to each other in the axial direction.

一方の第１カム部９ａのカム面には、カムピン１０の半球状体である端部に当接している。この回転カム９は、その中心線を中心に自転するねじり方向に付勢されている。この付勢のために、回転カム９は、ねじりばねである第２ばね１４の端部と連結されている。また、この第２ばね１４の他端は、固定側に結合している。従って、この回転カム９は、第２ばね１４の付勢力（Ｆ２）により、ホルダ５である固定側を基点に、図４で示す矢印で示す回転方向にねじられ、付勢された状態で回転可能な状態である。 The cam surface of the first cam portion 9a is in contact with the end of the cam pin 10 that is a hemispherical body. The rotating cam 9 is urged in a twisting direction that rotates about its center line. For this urging, the rotating cam 9 is connected to the end of the second spring 14 which is a torsion spring. The other end of the second spring 14 is coupled to the fixed side. Accordingly, the rotating cam 9 is twisted in the rotating direction indicated by the arrow shown in FIG. 4 with the biasing force (F2) of the second spring 14 as a base point and rotates in a biased state. It is possible.

また、回転カム９は、第１カム部９ａの反対側に第２カム部９ｂが形成されている。この第２カム部９ｂのカム面は、傾斜のカム面となっていて、第１カム部９ａと第２カム部９ｂが対の形で形成されている。この第２カム部９ｂの軸線方向には、これと対向して一対のレバー１１が配置されている。このレバー１１の回転カム９側の当接部１１ａが、第２カム部９ｂに当接している。このレバー１１は、ホルダ５に固定される保持部材１２に軸線方向に進退自在に保持されている。 Further, the rotating cam 9 has a second cam portion 9b formed on the opposite side of the first cam portion 9a. The cam surface of the second cam portion 9b is an inclined cam surface, and the first cam portion 9a and the second cam portion 9b are formed in pairs. In the axial direction of the second cam portion 9b, a pair of levers 11 are disposed to face the second cam portion 9b. The contact portion 11a of the lever 11 on the rotating cam 9 side is in contact with the second cam portion 9b. The lever 11 is held by a holding member 12 fixed to the holder 5 so as to be movable forward and backward in the axial direction.

又、このレバー１１は、シャフト１６の端部側に位置し内蔵されている第３ばね１５の付勢力（Ｆ３）により、保持部材１２側に常時付勢され保持されている。レバー１１は、その端部がホルダ５の外部に露出し、フラット部１１ｂを構成し、これがワンタッチのための押圧部を構成する。このレバー１１は、２つの当接部１１ａから構成され、その端部が回転カム９の第２カム部９ｂのカム面に当接している。 The lever 11 is always urged and held on the holding member 12 side by the urging force (F3) of the third spring 15 located on the end side of the shaft 16 and incorporated therein. The end portion of the lever 11 is exposed to the outside of the holder 5 to form a flat portion 11b, which constitutes a pressing portion for one touch. The lever 11 is composed of two abutting portions 11 a, and the end portions abut against the cam surface of the second cam portion 9 b of the rotating cam 9.

レバー１１のフラット部１１ｂを、第３ばね１５の付勢力に抗して強制的に押圧すると、図５に示すように、カムピン１０の端部が第１カム部９ａの底部に達する。それに伴い、カムピン１０は移動し、固定カム６のピン孔６ｂ内に入り込む。この状態は、可動カム７の制止状態が外れることになり、可動カム７は自転と軸線方向の移動が可能となる。レバー１１の当接部１１ａは、第２カム部９ｂのカム面を押圧することになり、回転カム９は第２ばね１４の付勢力に抗して、自転である回転方向に移動させることが可能となる。この動作で第１カム部９ａも一体移動し、カムピン１０は第１カム部９ａのカム面に沿って軸線方向に移動可能となる。 When the flat portion 11b of the lever 11 is forcibly pressed against the urging force of the third spring 15, the end of the cam pin 10 reaches the bottom of the first cam portion 9a as shown in FIG. Accordingly, the cam pin 10 moves and enters the pin hole 6b of the fixed cam 6. In this state, the restrained state of the movable cam 7 is released, and the movable cam 7 can rotate and move in the axial direction. The abutting portion 11a of the lever 11 presses the cam surface of the second cam portion 9b, and the rotating cam 9 can be moved in the rotational direction of rotation against the urging force of the second spring 14. It becomes possible. With this operation, the first cam portion 9a also moves together, and the cam pin 10 can move in the axial direction along the cam surface of the first cam portion 9a.

一方、取り付け状態は図示していないが、ケース４はこの開閉装置１の全体を覆う状態の形状になっていて、可動筐体３に固定されている。このケース４は、開閉装置１を内蔵させた部材であるとともに、可動筐体３の保持体を構成しているので、このケース４は、可動筐体３の開閉動作に合せて一体的に回動する。開閉装置１の中心部にはシャフト１６が設けられ、ケース４はこのシャフト１６にＳＵＳワッシャ１７及び樹脂ワッシャ１８を介してＥリング（Ｅ型止め輪）１９で係止されている（図３参照）。このケース４内に筒状の支持部材８が収納され、この支持部材８はケース４に対し相互回転が規制して内蔵され、側壁に溝８ａが設けられ可動カム７の軸線方向のガイドとなっている。 On the other hand, although the attached state is not shown, the case 4 has a shape covering the entire opening / closing device 1 and is fixed to the movable housing 3. Since this case 4 is a member in which the opening / closing device 1 is built and constitutes a holding body for the movable casing 3, the case 4 rotates integrally with the opening / closing operation of the movable casing 3. Move. A shaft 16 is provided at the center of the opening / closing device 1, and the case 4 is locked to the shaft 16 by an E-ring (E-type retaining ring) 19 via a SUS washer 17 and a resin washer 18 (see FIG. 3). ). A cylindrical support member 8 is accommodated in the case 4, and the support member 8 is incorporated with its mutual rotation restricted with respect to the case 4. A groove 8 a is provided on the side wall to serve as a guide in the axial direction of the movable cam 7. ing.

この溝８ａに可動カム７のつば部７ｂが軸線方向に摺動自在に嵌まり込み、相対的に可動カム７を軸線方向にガイドしている。又、この支持部材８内には第１ばね１３が内蔵されている。この第１ばね１３はコイルばねで、可動カム７を固定カム６側に常時付勢している。この第１ばね１３は１個の構成でよいが、ばねの耐久性の向上と付勢力を強くするため複数のばね構成にしてもよい。図３に示した展開図では２個としているが、１個でもよい。 The flange portion 7b of the movable cam 7 is fitted in the groove 8a so as to be slidable in the axial direction, and relatively guides the movable cam 7 in the axial direction. A first spring 13 is built in the support member 8. The first spring 13 is a coil spring and constantly urges the movable cam 7 toward the fixed cam 6. The first spring 13 may have a single configuration, but may have a plurality of spring configurations in order to improve the durability of the spring and increase the biasing force. In the development view shown in FIG. 3, the number is 2, but it may be 1.

固定カム６のカム面６ａは、軸線方向の端部にカム面が形成されたものである。可動カム７のカム部７ａは、カム面６ａに当接しているときは、支持部材８に軸線方向に移動自在であるが、回転自在に支持されているので、回転しながら軸線方向に移動する。可動カム７のカム部７ａは、常時このカム面６ａに当接し、カム面６ａに沿って軸線方向と回転方向に相対して移動する。可動筐体３が閉状態にあるとき固定カム６は固定のままであるが、回動可能な可動カム７も固定カム６から最も離れた部位で制止状態にある。 The cam surface 6a of the fixed cam 6 has a cam surface formed at the end in the axial direction. When the cam portion 7a of the movable cam 7 is in contact with the cam surface 6a, the cam portion 7a is movable in the axial direction by the support member 8. However, since it is rotatably supported, it moves in the axial direction while rotating. . The cam portion 7a of the movable cam 7 always abuts against the cam surface 6a and moves relative to the axial direction and the rotational direction along the cam surface 6a. When the movable casing 3 is in the closed state, the fixed cam 6 remains fixed, but the rotatable movable cam 7 is also in a stopped state at a part farthest from the fixed cam 6.

本実施の形態において、カムピン１０は、１本で構成している。このことは、可動カム７の回転を１８０度以上にできることを意味する。即ち、カムに負荷される力を分散させるために、等角度間隔に配置された２本のカムピン１０を配置すると、原理的に１８０度しか回転できない。しかしながら、１本のカムピン１０であると、カムを駆動するとき、円周面上の１箇所のみの接触なので、カムピン１０の姿勢を変えるような片荷重が発生する。このために、本実施の形態のカムピン１０は、その保持状態を、ピン孔６ｂで摺動自在に支承し、安定的にその姿勢を保持して、片荷重のマイナスを補っている。更に、カムピン１０は、単純形状の丸棒状体としているので、加工の容易さは勿論のこと、硬度を高める材質でも使用が容易である。又、可動カム７のカム面は、中間部に軸線方向に対し略直角方向に平坦部７ｃを設けた構成としている（図６（ｄ）参照）。これはカムピン１０がこの位置に達したときに、このカムピン１０には第１ばね１３の軸線方向のみの付勢力しか受けない構成となる。 In the present embodiment, the cam pin 10 is constituted by one. This means that the rotation of the movable cam 7 can be 180 degrees or more. In other words, in order to disperse the force applied to the cam, if two cam pins 10 arranged at equiangular intervals are arranged, in principle, only 180 degrees can be rotated. However, with one cam pin 10, when the cam is driven, only one point on the circumferential surface is in contact, so a single load is generated that changes the posture of the cam pin 10. For this reason, the cam pin 10 according to the present embodiment supports its holding state in a slidable manner through the pin hole 6b, stably holds its posture, and compensates for the minus of one load. Furthermore, since the cam pin 10 is a simple round bar-like body, it can be easily used not only with ease of processing but also with a material that increases hardness. Further, the cam surface of the movable cam 7 has a configuration in which a flat portion 7c is provided at an intermediate portion in a direction substantially perpendicular to the axial direction (see FIG. 6D). This is configured such that when the cam pin 10 reaches this position, the cam pin 10 receives only the urging force in the axial direction of the first spring 13.

可動筐体３の開閉端の位置は、可動カム７の初期位置及び最終移動位置になる。筐体３を開く場合は、当然のことながら手動で開くことを可能とし、可動カム７をこの開く動作で移動させることにより、可動筐体３を第１ばね１３の付勢力に抗して最終位置まで開閉させる。このように手動で容易に開閉させる構成であるが、可動筐体３をワンタッチモーションで開くことができる構造になっている。次にこの構成について説明する。 The position of the open / close end of the movable casing 3 is an initial position and a final movement position of the movable cam 7. When opening the housing 3, it is naturally possible to manually open the housing 3, and by moving the movable cam 7 by this opening operation, the movable housing 3 is finally resisted against the urging force of the first spring 13. Open and close to position. Thus, although it is the structure opened and closed easily manually, it has the structure which can open the movable housing | casing 3 by one-touch motion. Next, this configuration will be described.

［ワンタッチ機構］
ホルダ５の一端には、ワンタッチの開きを可能にするレバー１１が組み込まれている。このレバー１１は、位置が制止状態にある（図６（ａ）の状態）可動カム７の回動動作を可能にするための解除手段である。ホルダ５の端部には保持部材１２が取り付けられ、この保持部材１２に保持された状態で、レバー１１が軸線方向進退自在となっている。レバー１１は常時第３ばね１５の付勢力（図６（ａ）のＦ３参照）により、保持部材１２側に押圧され位置が規制されている。一方レバー１１の一端の当接部１１ａは、回転カム９の第２カム部９ｂに当接している。可動筐体３が閉状態にあるときは、図４に示すように、回転カム９は、第２ばね１４のねじり方向の付勢力（Ｆ２）により矢印で示す方向に（図４参照）回転移動している。 [One-touch mechanism]
A lever 11 that allows one-touch opening is incorporated in one end of the holder 5. The lever 11 is a release means for enabling the movable cam 7 to be rotated (the state shown in FIG. 6A) in a stopped state. A holding member 12 is attached to the end of the holder 5, and the lever 11 can be moved forward and backward in the axial direction while being held by the holding member 12. The lever 11 is always pressed toward the holding member 12 by the urging force of the third spring 15 (see F3 in FIG. 6A) and its position is regulated. On the other hand, the contact portion 11 a at one end of the lever 11 is in contact with the second cam portion 9 b of the rotary cam 9. When the movable housing 3 is in the closed state, as shown in FIG. 4, the rotating cam 9 rotates and moves in the direction indicated by the arrow (see FIG. 4) by the urging force (F2) in the torsional direction of the second spring 14. doing.

この状態はレバー１１が回転カム９の第２カム部９ｂの傾斜面で保持部材１２側に移動する状態であるとともに、第３ばね１５の付勢力で保持部材１２に当接押圧されている状態でもある。一方、回転カム９の第１カム部９ａに対しては、カムピン１０がカム面に沿って押し上げられ第１カム部９ａの頂部に位置している。カムピン１０の固定カム６側の端部は、固定カム６のカム面６ａ上に張り出し、可動カム７のカム部７ａの背面に当接し、可動カム７の移動を制止する状態となっている。可動カム７は常時第１ばね１３の付勢力により、固定カム６側に押圧されている。第１ばね１３の付勢力（Ｆ１）は第２ばね１４、第３ばね１５の付勢力よりも強いばねとなっている。 This state is a state in which the lever 11 moves toward the holding member 12 on the inclined surface of the second cam portion 9 b of the rotating cam 9 and is in contact with and pressed against the holding member 12 by the urging force of the third spring 15. But there is. On the other hand, with respect to the first cam portion 9a of the rotating cam 9, the cam pin 10 is pushed up along the cam surface and positioned at the top of the first cam portion 9a. The end of the cam pin 10 on the fixed cam 6 side protrudes on the cam surface 6 a of the fixed cam 6 and comes into contact with the back surface of the cam portion 7 a of the movable cam 7 to stop the movement of the movable cam 7. The movable cam 7 is always pressed toward the fixed cam 6 by the biasing force of the first spring 13. The urging force (F1) of the first spring 13 is a spring stronger than the urging forces of the second spring 14 and the third spring 15.

しかし、可動カム７のカム部７ａがカムピン１０に当接しても、カムピン１０の端部は回転カム９の第１カム部９ａの頂部に位置しているので、カムピン１０は第１ばね１３の付勢力で押圧を受けても押し戻されることはない。従って、２つの固定筐体２、可動筐体３は閉の状態を維持できる。次に、この状態にある開閉装置１をワンタッチで開状態にする構成を説明する。それは、開閉装置１の端部に張り出して設けられるレバー１１のフラット部１１ｂを手で押圧することにより、筐体を瞬時に開の状態にすることができる。図５はその状態を示した図である。 However, even if the cam portion 7 a of the movable cam 7 comes into contact with the cam pin 10, the end of the cam pin 10 is located at the top of the first cam portion 9 a of the rotating cam 9. It is not pushed back even if it is pressed by the urging force. Therefore, the two fixed housings 2 and the movable housing 3 can be kept closed. Next, the structure which makes the opening / closing apparatus 1 in this state open by one touch will be described. That is, by pressing the flat portion 11b of the lever 11 provided overhanging the end of the opening / closing device 1 by hand, the housing can be instantaneously opened. FIG. 5 shows the state.

レバー１１のフラット部１１ｂを、第３ばね１５の付勢力に抗して図５に示す矢印のように手で押圧すると、レバー１１の当接部１１ａが回転カム９の第２カム部９ｂのカム面を押圧する。このレバー１１の当接部１１ａへの押圧により、第２カム部９ｂを回転方向に強制的に移動させる。即ち、回転カム９は、図５の矢印で示す方向に第２ばね１４の付勢力に抗しで回転する。これに伴い、回転カム９の第１カム部９ａも同方向に回転移動し、カムピン１０は矢印で示すように、第１カム部９ａの頂部から傾斜のカム面に移動する。このカムピン１０が、第１カム部９ａの底部まで達したときに、カムピン１０の固定カム６側の端部は、第１ばね１３の付勢力で押される可動カム７のカム部７ａによりピン孔６ｂ内に引き込む。 When the flat portion 11 b of the lever 11 is pressed by hand as shown by the arrow shown in FIG. 5 against the urging force of the third spring 15, the contact portion 11 a of the lever 11 is moved to the second cam portion 9 b of the rotating cam 9. Press the cam surface. The second cam portion 9b is forcibly moved in the rotational direction by the pressing of the lever 11 against the contact portion 11a. That is, the rotating cam 9 rotates against the urging force of the second spring 14 in the direction indicated by the arrow in FIG. Along with this, the first cam portion 9a of the rotating cam 9 also rotates in the same direction, and the cam pin 10 moves from the top of the first cam portion 9a to the inclined cam surface as indicated by the arrow. When the cam pin 10 reaches the bottom of the first cam portion 9 a, the end of the cam pin 10 on the fixed cam 6 side is pinned by the cam portion 7 a of the movable cam 7 that is pushed by the urging force of the first spring 13. Pull into 6b.

それと同時に可動カム７はカムピン１０による規制が解除されるので、カム部７ａは第１ばね１３の付勢力で付勢され続けながら、固定カム６のカム面６ａに沿って移動する。この可動カム７の移動は回転方向の移動であるので、これに伴い支持部材８、ケース４とともに可動筐体３は回動して開くことになる。レバー１１のフラット部１１ｂから手を離しても、第２ばね１４の付勢力によりカムピン１０は、固定カム６側に押圧されているので、移動過程における可動カム７のカム面にカムピン１０は当接状態を維持する。 At the same time, the restriction of the movable cam 7 by the cam pin 10 is released, so that the cam portion 7 a moves along the cam surface 6 a of the fixed cam 6 while being continuously urged by the urging force of the first spring 13. Since the movement of the movable cam 7 is a movement in the rotation direction, the movable housing 3 together with the support member 8 and the case 4 is rotated and opened accordingly. Even if the hand is released from the flat portion 11b of the lever 11, the cam pin 10 is pressed against the fixed cam 6 side by the urging force of the second spring 14, so that the cam pin 10 does not touch the cam surface of the movable cam 7 in the moving process. Maintain contact.

この状態で可動カム７は、固定カム６のカム面６ａ上を当接しながら相対移動する。開閉動作の最終段階においてカムピン１０は回転カム９の第１カム９ａの頂部に達するようになって、カムピン１０は固定された状態となる。又、ワンタッチ開きの押圧部材をレバー１１のフラット部１１ｂとしているが、このレバー１１のフラット部１１ｂはデザイン等を考慮しボタン形状の外形にしてもよい。ワンタッチで開いた後、再び閉じる場合は逆の動作となり、この場合の可動カム７はカムピン１０に乗り上げる状態で移動し、元の位置に戻される。 In this state, the movable cam 7 moves relatively while abutting on the cam surface 6 a of the fixed cam 6. In the final stage of the opening / closing operation, the cam pin 10 reaches the top of the first cam 9a of the rotary cam 9, and the cam pin 10 is fixed. Further, although the one-touch opening pressing member is the flat portion 11b of the lever 11, the flat portion 11b of the lever 11 may have a button-shaped outer shape in consideration of the design and the like. When opening again with one touch and then closing again, the operation is reversed. In this case, the movable cam 7 moves on the cam pin 10 and returns to its original position.

［電子機器の開閉装置の動作］
次に、開閉装置の動作工程について、図６、７をもとに詳細に説明する。この図は回転方向の展開図であり、可動カム７と固定カム６の相対位置関係を示すため、カム部を平面に展開した模式的な説明図である。この実施の形態では、１８０度以内の範囲の開きを前提に説明する。図６（ａ）〜（ｆ）はワンタッチ動作により筐体を開く状態にする工程を示した説明図である。図６（ａ）に示す工程は、可動筐体３が閉じた状態である。可動カム７は、第１ばね１３の付勢力（Ｆ１）で常に矢印の方向に押圧されている。この可動カム７の初期状態は、可動カム７が固定カム６から最も離れた軸線方向の位置にある。この工程は図４で示す状態である。 [Operation of electronic device switchgear]
Next, the operation process of the switchgear will be described in detail with reference to FIGS. This drawing is a developed view in the rotational direction, and is a schematic explanatory view in which the cam portion is developed on a plane in order to show the relative positional relationship between the movable cam 7 and the fixed cam 6. In this embodiment, description will be made on the assumption that the opening is within a range of 180 degrees. FIGS. 6A to 6F are explanatory views showing a process of opening the housing by a one-touch operation. The process shown in FIG. 6A is a state in which the movable housing 3 is closed. The movable cam 7 is always pressed in the direction of the arrow by the urging force (F1) of the first spring 13. The initial state of the movable cam 7 is at a position in the axial direction where the movable cam 7 is farthest from the fixed cam 6. This step is the state shown in FIG.

回転カム９は、第２ばね１４の付勢力（Ｆ２）で矢印の方向に押圧された状態である。カムピン１０の端部は、下側（図示上）が第１カム部９ａの頂部に位置し、上側（図示上）が可動カム７のカム部７ａ背面に位置している。レバー１１は、第３ばね１５の付勢力（Ｆ３）で矢印の方向に押圧された状態になっている。可動カム７は、カムピン１０によりその動きが規制され、定位置を保持し可動筐体３を閉じた状態にしている。この状態でレバー１１を押圧すると、図６（ｂ）に示した工程になり、レバー１１の当接部１１ａが回転カム９の第２カム部９ｂを第２ばね１４の付勢力に抗し押圧することになり、回転カム９は矢印の方向に強制的に移動する。これに伴い、カムピン１０は第１ばね１３の付勢力により押圧される可動カム７の押圧で、ピン孔６ｂに押し込まれ回転カム９の第１カム部９ａのカム面に沿って底部へ移動する。 The rotating cam 9 is pressed in the direction of the arrow by the urging force (F2) of the second spring 14. As for the edge part of the cam pin 10, the lower side (upper figure) is located in the top part of the 1st cam part 9a, and the upper side (upper figure) is located in the cam part 7a back surface of the movable cam 7. FIG. The lever 11 is pressed in the direction of the arrow by the urging force (F3) of the third spring 15. The movement of the movable cam 7 is restricted by the cam pin 10, maintains a fixed position, and closes the movable casing 3. When the lever 11 is pressed in this state, the process shown in FIG. 6B is performed, and the contact portion 11 a of the lever 11 presses the second cam portion 9 b of the rotating cam 9 against the urging force of the second spring 14. Thus, the rotating cam 9 is forcibly moved in the direction of the arrow. Along with this, the cam pin 10 is pushed into the pin hole 6b by the pressing of the movable cam 7 pressed by the biasing force of the first spring 13, and moves to the bottom along the cam surface of the first cam portion 9a of the rotating cam 9. .

カムピン１０が底部に位置すると、固定カム６のカム面６ａはカムピン１０の突き出しがなくなり平坦な状態になる。この状態になると、可動カム７は固定カム６上を抵抗なくスムースに移動を継続できることになる。このことにより可動カム７は回転可能となり、固定カム６に対し相対的に回転し可動筐体３は開き動作を開始することになる。図６（ｂ）に示す状態は、可動カム７が移動し始めた直後で、カムピン１０上部を通過できる状態を示している。レバー１１は押圧してすぐ離すことになるが、瞬時に図６（ｂ）に示した状態になり、可動カム７は開放された状態となる。可動カム７は連続して移動しているので、レバー１１を離しても、回転カム９はレバー１１からの押圧はなく、第２ばね１４の付勢力により移動しカムピン１０を押圧するのみの状態となる。 When the cam pin 10 is positioned at the bottom, the cam surface 6a of the fixed cam 6 is flat without any protrusion of the cam pin 10. In this state, the movable cam 7 can continue to move smoothly on the fixed cam 6 without resistance. As a result, the movable cam 7 can rotate, and rotates relative to the fixed cam 6 so that the movable housing 3 starts to open. The state shown in FIG. 6B shows a state where the upper part of the cam pin 10 can be passed immediately after the movable cam 7 starts to move. The lever 11 is pressed and released immediately, but instantly enters the state shown in FIG. 6B, and the movable cam 7 is released. Since the movable cam 7 is continuously moving, even if the lever 11 is released, the rotating cam 9 is not pressed from the lever 11 but moved by the biasing force of the second spring 14 and only presses the cam pin 10. It becomes.

第２ばね１４の付勢力は、第１ばね１３の付勢力に比し小さいので、可動カム７は固定カム６から離れることなく相対移動を続け、又、カムピン１０は、図６（ｃ）に工程で示すように、第２ばねの付勢力で、可動カム７のカム面に当接した状態を保持する。ワンタッチ動作の場合、カムピン１０は開閉途中の状態であっても可動カム７に当接している。レバー１１は押圧状態でないので、回転カム９から離間している。図６（ｄ）は、可動カム７が回転移動の途中位置になるカム面の平坦部７ｃに、カムピン１０が位置した場合の状態を示している。この場合であっても、可動カム７は固定カム６に当接しながら開き時の勢いで連続的に回転移動する。カムピン１０の下部は、回転カム９の第１カム部９ａの傾斜面途中に位置し頂部に達していない状態である。 Since the urging force of the second spring 14 is smaller than the urging force of the first spring 13, the movable cam 7 continues relative movement without leaving the fixed cam 6, and the cam pin 10 is shown in FIG. As shown in the process, the state of contacting the cam surface of the movable cam 7 is maintained by the urging force of the second spring. In the case of the one-touch operation, the cam pin 10 is in contact with the movable cam 7 even in the middle of opening and closing. Since the lever 11 is not pressed, it is separated from the rotating cam 9. FIG. 6D shows a state where the cam pin 10 is positioned on the flat portion 7c of the cam surface where the movable cam 7 is in the middle of the rotational movement. Even in this case, the movable cam 7 continuously rotates and moves at the moment of opening while contacting the fixed cam 6. The lower part of the cam pin 10 is in a state where it is located in the middle of the inclined surface of the first cam part 9a of the rotating cam 9 and does not reach the top part.

図６（ｅ）の状態は、可動カム７の平坦部７ｃがカムピン１０位置を通過し、略１５５度の回転位置に回転移動した状態を示している。この位置に達したとき、可動カム７は固定カム６に当接し移動する状態は維持しつつ、カムピン１０は回転カム９の第１カム部９ａの頂部に達するようにしている。即ち、カムピン１０は、固定カム６のカム面６ａ上部に突き出したままの固定状態を保持する状態となる。結果的にカムピン１０の位置は、初期状態となる。図６（ｆ）は、可動カムが最終位置になる１８０度の回転位置に達したときの状態を示している。図６（ｅ）に示す工程は、カムピン１０を（ｆ）の工程になる直前に固定状態にするためである。図６（ｅ）と図６（ｆ）に示す状態において、カムピン１０の上部を可動カム７のカム面に対し若干離間するようにすれば、この間のカムピン１０と可動カム７のカム面との当接がないので接触に伴うこすり状態は避けられる。 The state of FIG. 6 (e) shows a state in which the flat portion 7c of the movable cam 7 has passed through the position of the cam pin 10 and rotated to a rotational position of approximately 155 degrees. When this position is reached, the movable cam 7 is kept in contact with the fixed cam 6 and moved, while the cam pin 10 reaches the top of the first cam portion 9 a of the rotating cam 9. That is, the cam pin 10 is in a state of holding the fixed state while protruding from the upper part of the cam surface 6 a of the fixed cam 6. As a result, the position of the cam pin 10 is in the initial state. FIG. 6 (f) shows a state when the movable cam has reached a rotational position of 180 degrees that is the final position. The process shown in FIG. 6 (e) is for making the cam pin 10 fixed immediately before the process of (f). In the state shown in FIGS. 6 (e) and 6 (f), if the upper portion of the cam pin 10 is slightly separated from the cam surface of the movable cam 7, the cam pin 10 and the cam surface of the movable cam 7 in the meantime are separated. Since there is no contact, rubbing caused by contact can be avoided.

固定カム６のカム面に対してのみ当接し可動カム７は移動する。このように閉じた状態からレバー１１を押圧することにより、瞬時に１８０度まで連続動作で可動筐体３を開くことができる。閉じるときは、開くときの逆工程になるが、可動筐体３を手動で操作する。この手動操作の場合は、カムピン１０はその位置が固定状態にあるので、カム部７ａが第１ばねの１３付勢力に抗し、カムピン１０上を乗り上げる状態で、可動カム７は回転移動する。可動筐体３を閉じたときは図６（ａ）の状態に戻る。 The movable cam 7 moves in contact with only the cam surface of the fixed cam 6. By pressing the lever 11 from the closed state as described above, the movable housing 3 can be opened in a continuous operation up to 180 degrees instantaneously. When closing, it is the reverse process of opening, but the movable casing 3 is manually operated. In the case of this manual operation, since the cam pin 10 is in a fixed state, the movable cam 7 rotates and moves in a state where the cam portion 7a rides on the cam pin 10 against the 13 biasing force of the first spring. When the movable housing 3 is closed, the state returns to the state of FIG.

図７は、手動動作のみで開閉動作を行う場合の動作工程を示している。この場合、カムピン１０の下部は回転カム９の第１カム部９ａ頂部に位置した状態を保持している。この状態は図６（ａ）と同じである。手動で直接的に可動筐体３を開いたとき、可動カム７は、カムピン１０の上部を乗り上げる状態で回転移動する。この状態を示したのが図７（ａ）に示す状態で、開き始めた直後の工程図である。従って、可動カム７はこのように浮き上がり状態で固定カム６のカム形状に沿って、カムピンに当接しながら連続移動する。図７（ｂ）は可動カム７の平坦部７ｃにカムピン１０が位置した場合の状態を示している。 FIG. 7 shows an operation process when the opening / closing operation is performed only by manual operation. In this case, the lower portion of the cam pin 10 maintains a state where it is located at the top of the first cam portion 9 a of the rotating cam 9. This state is the same as in FIG. When the movable casing 3 is directly opened manually, the movable cam 7 rotates and moves on the cam pin 10. This state is shown in FIG. 7A and is a process diagram immediately after starting to open. Accordingly, the movable cam 7 moves continuously along the cam shape of the fixed cam 6 in such a floating state while contacting the cam pin. FIG. 7B shows a state where the cam pin 10 is positioned on the flat portion 7 c of the movable cam 7.

手動により強制的に連続動作で開くと、カムピン１０が固定カム６のカム面６ａ上に張り出した状態であっても、勢いで開き動作を続けることになる。しかし、可動筐体３の開きを途中で制止したい場合、カムピン１０は固定状態にあるので、開き動作の途中においては可動カム７の平坦部７ｃがクッションの役目を果たし、可動カム７をこの平坦部７ｃで保持することが可能である。この角度位置において、可動カム７を保持できるのは、第１ばね１３の付勢力は軸線方向のみの力しか作用していないためである。 When it is manually and forcibly opened in a continuous operation, even if the cam pin 10 protrudes on the cam surface 6a of the fixed cam 6, the opening operation is continued with momentum. However, when the opening of the movable housing 3 is desired to be stopped halfway, the cam pin 10 is in a fixed state, so that the flat portion 7c of the movable cam 7 serves as a cushion during the opening operation, and the movable cam 7 is flattened. It can be held by the part 7c. The movable cam 7 can be held at this angular position because the biasing force of the first spring 13 acts only in the axial direction.

この平坦部７ｃは回転方向への分力が生じていない部位である。従って、操作者は開閉途中に手を放しても、開き状態の途中位置で保持できる。可動筐体３は開閉動作の過程で、最終位置まで開かず、途中位置であっても閉じることはできる。その後における開閉操作は前述同様である。開閉装置を閉じる場合は、その工程を省略しているが、手動により可動カム７の動作は前述の逆の動作となる。 The flat portion 7c is a portion where no component force is generated in the rotation direction. Therefore, even if the operator releases his / her hand during opening and closing, it can be held at an intermediate position in the open state. The movable casing 3 is not opened to the final position in the process of opening and closing, and can be closed even at an intermediate position. The subsequent opening / closing operation is the same as described above. When closing the opening / closing device, the process is omitted, but the operation of the movable cam 7 is manually the reverse of the above-described operation.

以上、本発明の実施の形態について説明を行ったが、本発明はこの実施の形態に限定されることはなく、本発明の目的、趣旨を逸脱しない範囲内での変更が可能なことはいうまでもない。例えば、カムピンの形状は丸棒材形状のものとして説明したが、断面が矩形状のものであってもよいことはいうまでもない。 Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and it can be modified within the scope of the purpose and spirit of the present invention. Not too long. For example, the cam pin has been described as having a round bar shape, but needless to say, the cross section may be rectangular.

１…電子機器の開閉装置
２…固定筐体
３…可動筐体
４…ケース
５…ホルダ
６…固定カム
７…可動カム
８…支持部材
９…回転カム
１０…カムピン
１１…レバー
１２…保持部材
１３…第１ばね
１４…第２ばね
１５…第３ばね
１６…シャフト DESCRIPTION OF SYMBOLS 1 ... Electronic device opening and closing device 2 ... Fixed housing 3 ... Movable housing 4 ... Case 5 ... Holder 6 ... Fixed cam 7 ... Movable cam 8 ... Support member 9 ... Rotating cam 10 ... Cam pin 11 ... Lever 12 ... Holding member 13 ... 1st spring 14 ... 2nd spring 15 ... 3rd spring 16 ... Shaft

Claims

Electronic device opening and closing device (1) that repeats an open state and a closed state by connecting the second housing (3) to the first housing (2) so as to be pivotable to each other to form a folding structure. Because
A holder (5) fixed to the first housing (2);
A fixed cam (6) fixed to the first casing (2) and provided integrally with the holder (5) and having a cam surface (6a) facing in the axial direction;
Built in the second housing (3) and disposed opposite the cam surface (6a) of the fixed cam (6), is rotatable relative to the fixed cam (6), and moves in the axial direction. A movable cam (7) having a cam portion (7a) capable of contacting the cam surface (6a) of the fixed cam (6) ;
A first spring (13) for biasing the cam portion (7a ) of the movable cam (7) toward the cam surface (6a) of the fixed cam (6) of the fixed cam (6) ;
A holding body (4) fixedly provided on the second casing (3);
A support member (8) provided in the holding body (4), supporting the moving posture of the movable cam (7), and rotating together with the holding body (4);
A pin body (10) held in a through hole (6b) formed in the axial direction of the fixed cam (6) so as to be able to advance and retreat, and having one end abutting on the cam surface (7a) of the movable cam (7). When,
A rotating cam (9) having a first cam portion (9a) that is rotatably held by the holder (5) and abuts against the other end of the pin body (10);
A second spring (14) for urging the rotating cam (9) in the rotational direction;
The rotating cam (9) has an abutting portion (11a) that abuts against the second cam portion (9b) of the rotating cam (9) and presses against the urging force of the second spring (14), whereby the rotating cam (9 ) For pressing the second cam portion (9b) and forcibly rotating the rotary cam (9) in a rotation direction opposite to the rotation direction biased by the second spring (14). 11) and
A holding member (12) that holds the pressing member (11) movably and is fixed to the holder (5);
Switchgear of an electronic device consisting of a third spring (15) for biasing the pressing member (11) to said holding member (12) side.

The electronic device opening and closing device according to claim 1.
The said pin body (10) is a round bar-like body, and the said through-hole (6b) is a cylindrical hole. The opening / closing apparatus of the electronic device characterized by the above-mentioned.

The electronic device opening and closing device according to claim 1 or 2,
An opening / closing device for an electronic device, wherein an end of the pin body (10) is a spherical body.

The electronic device opening and closing device according to claim 1 or 2,
An opening / closing device for an electronic device, wherein a planar portion (7c) is provided at a position substantially perpendicular to the axial direction at an intermediate position of the cam surface of the movable cam (7).