JPH056707Y2 - - Google Patents

Info

Publication number
JPH056707Y2
JPH056707Y2 JP1984124671U JP12467184U JPH056707Y2 JP H056707 Y2 JPH056707 Y2 JP H056707Y2 JP 1984124671 U JP1984124671 U JP 1984124671U JP 12467184 U JP12467184 U JP 12467184U JP H056707 Y2 JPH056707 Y2 JP H056707Y2
Authority
JP
Japan
Prior art keywords
wiring board
printed wiring
ejector
storage box
rotating body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1984124671U
Other languages
Japanese (ja)
Other versions
JPS6139985U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP12467184U priority Critical patent/JPS6139985U/en
Publication of JPS6139985U publication Critical patent/JPS6139985U/en
Application granted granted Critical
Publication of JPH056707Y2 publication Critical patent/JPH056707Y2/ja
Granted legal-status Critical Current

Links

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  • Mounting Of Printed Circuit Boards And The Like (AREA)

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、電子機器の印刷配線板を収容箱に実
装して印刷配線板と外部とを電気的に接続する印
刷配線板着脱構造に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a printed wiring board attaching/detaching structure for mounting a printed wiring board of an electronic device in a housing box and electrically connecting the printed wiring board to the outside.

〔従来の技術〕 第5図は従来の印刷配線板着脱構造を示す側断
面図であり、1はガイドプレート、2はガイドプ
レート1の内側に設けたガイドレール、3はガイ
ドプレート1の一端に設けたバツクボード、4は
バツクボード3の内側に設けたコネクタ、5は前
記ガイドプレート1の他端を曲折加工した案内
部、6は前記した構成からなる収容箱である。
[Prior Art] FIG. 5 is a side sectional view showing a conventional printed wiring board attachment/detachment structure, in which 1 is a guide plate, 2 is a guide rail provided inside the guide plate 1, and 3 is a guide rail provided at one end of the guide plate 1. 4 is a connector provided inside the back board 3; 5 is a guide portion formed by bending the other end of the guide plate 1; and 6 is a storage box having the above-described structure.

7は印刷配線板、8は印刷配線板7の一端に位
置する接栓部、9はイジエクタ、10はイジエク
タ9の突起部、11はイジエクタ9のレバー部、
12はイジエクタ9を前記接栓部8とは反対方向
の印刷配線板7の端部の角部に回転可能に取付け
ている作用点、13はイジエクタ9のレバー部1
1における力点を示し、14はイジエクタ9の突
起部10における支点を示す。
7 is a printed wiring board, 8 is a plug located at one end of the printed wiring board 7, 9 is an ejector, 10 is a projection of the ejector 9, 11 is a lever part of the ejector 9,
Reference numeral 12 indicates an action point at which the ejector 9 is rotatably attached to the corner of the end of the printed wiring board 7 in the direction opposite to the plug portion 8, and 13 indicates a lever portion 1 of the ejector 9.
1, and 14 indicates a fulcrum at the protrusion 10 of the ejector 9.

前記のような、従来構造で印刷配線板7を収容
箱6に実装するには、印刷配線板7の上下端を収
容箱6のガイドレール2に沿わせ、印刷配線板7
を収容箱6内へ押入れる。この時、印刷配線板7
の接栓部8の先端は収容箱6のバツクボード3の
内側に位置するコネクタ4に当り、イジエクタ9
の突起部10はガイドプレート1の開口側である
案内部5に内包される。この状態は、接栓部8の
ピン配列等がコネクタ4に挿入される直前の状態
である。
In order to mount the printed wiring board 7 in the storage box 6 with the conventional structure as described above, the upper and lower ends of the printed wiring board 7 are aligned with the guide rails 2 of the storage box 6, and the printed wiring board 7
into the storage box 6. At this time, printed wiring board 7
The tip of the plug part 8 hits the connector 4 located inside the back board 3 of the storage box 6, and the ejector 9
The protrusion 10 is included in the guide portion 5 on the opening side of the guide plate 1. This state is a state immediately before the pin arrangement etc. of the plug portion 8 are inserted into the connector 4.

前記した状態で、イジエクタ9のレバー部11
に示す力点13に力を加え、イジエクタ9を矢印
a方向に回転するとイジエクタ9の突起部10が
案内部5の一方の内壁に当接して支点14を形成
し、印刷配線板7を収容箱6の内部へと更に押込
むこととなる。従つて、印刷配線板7の接栓部8
のピン配列等は収容箱6のコネクタ4へと挿入さ
れて、印刷配線板7は該コネクタ4と電気的に接
続される。このようにして、外部との電気的接続
を行なつている。
In the above state, the lever portion 11 of the ejector 9
When the ejector 9 is rotated in the direction of the arrow a by applying a force to the force point 13 shown in FIG. It will be pushed further inside. Therefore, the plug portion 8 of the printed wiring board 7
The pin arrangement etc. are inserted into the connector 4 of the storage box 6, and the printed wiring board 7 is electrically connected to the connector 4. In this way, electrical connection with the outside is established.

前記した接栓部8のピン配列等とコネクタ4の
挿抜には多大な力を伴なう。例えば、1ピン当り
の挿入力を200gとすると、150ピンを有する接栓
部の挿入においては約30Kgの力が必要となる。こ
の多大な力を得るために、従来は前記したような
レバー部11を構成するイジエクタ9を用いて、
てこの原理を応用しており、これによつて人手に
よる前記接栓部8とコネクタ4との挿抜を可能と
していた。
A great deal of force is involved in the above-mentioned pin arrangement of the plug portion 8 and in the insertion and removal of the connector 4. For example, if the insertion force per pin is 200 g, a force of about 30 kg is required to insert a plug having 150 pins. In order to obtain this great force, conventionally, the ejector 9 constituting the lever portion 11 as described above is used.
The lever principle is applied, thereby making it possible to manually insert and remove the plug portion 8 and the connector 4.

次に、第6図に示すイジエクタ9部の拡大側面
図を基に、イジエクタ9について更に説明する。
Next, the ejector 9 will be further explained based on an enlarged side view of the ejector 9 shown in FIG.

第6図に示すように、イジエクタ9のレバー部
11の力点13に荷重Fを加えると、印刷配線板
7に力Pが働き、この力Pが前記した接栓部8を
コネクタ4に挿入する力となる。
As shown in FIG. 6, when a load F is applied to the force point 13 of the lever portion 11 of the ejector 9, a force P acts on the printed wiring board 7, and this force P inserts the aforementioned plug portion 8 into the connector 4. It becomes power.

ここで、前記荷重Fと挿入力Pとの比率を考え
ると、P=(I2/I1+Cosθ)・Fで表わされる。な
お、I1は作用点12と支点14間の長さ、I2は作
用点12と力点13の長さ、θは作用点12の垂
線と作用点12と力点13を結ぶ直線との角度を
示す。前式で表わされるように、挿入力Pの拡大
率はおおむねI2/I1に依存している。これは、I1
に対してI2の長さ、すなわちレバー部11を長く
するに従つて挿入力Pを大きくすることができる
ことを表わしている。
Here, considering the ratio between the load F and the insertion force P, it is expressed as P=(I 2 /I 1 +Cosθ)·F. In addition, I 1 is the length between the point of action 12 and the fulcrum 14, I 2 is the length of the point of action 12 and the point of effort 13, and θ is the angle between the perpendicular to the point of action 12 and the straight line connecting the point of action 12 and the point of effort 13. show. As expressed by the above equation, the expansion rate of the insertion force P roughly depends on I 2 /I 1 . This is I 1
This indicates that the insertion force P can be increased as the length of I2 , that is, the length of the lever portion 11, is increased.

前記した接栓部8のピン数は、今後益々増加す
る傾向にあるので、印刷配線板7における接栓部
8の挿抜に必要な力は増大の一途をたどつてい
る。
Since the number of pins of the above-mentioned plug portion 8 is likely to increase more and more in the future, the force required to insert and remove the plug portion 8 on the printed wiring board 7 continues to increase.

〔考案が解決しようとする問題点〕[Problem that the invention attempts to solve]

前記したように、従来のイジエクタ9はレバー
部11によつて回転され印刷配線板7の接栓部8
を収容箱6のコネクタ4へ挿入しているために、
レバー部11の運動空間を必要とする問題があ
り、これは前記した接栓部8のピン数増加に伴な
う接栓部8とコネクタ4との挿抜力の増加に対応
するために前記したI1に対するI2、すなわちレバ
ー部11を長くしなければならないことによつて
一層の問題点となつている。なぜならば、印刷配
線板7のイジエクタ9付近に搭載される外部接続
用コネクタのスペースが縮小されたり、ケーブル
類配線のルートスペースの圧迫等、多くの弊害を
招き機器の小型において大きな障害となるからで
ある。
As described above, the conventional ejector 9 is rotated by the lever portion 11 to close the plug portion 8 of the printed wiring board 7.
is inserted into the connector 4 of the storage box 6,
There is a problem in that a space for movement of the lever part 11 is required, and this is due to the increase in the insertion and removal force between the plug part 8 and the connector 4 due to the increase in the number of pins of the plug part 8 described above. This problem is further exacerbated by the fact that I2 relative to I1 , that is, the lever portion 11 must be made longer. This is because the space for the external connection connector mounted near the ejector 9 on the printed wiring board 7 is reduced, and the route space for cable wiring is compressed, resulting in many problems and becoming a major obstacle in downsizing the device. It is.

また、印刷配線板7の挿抜力が増加すること
で、前記した第6図で示すようにイジエクタ9の
突起部10の支点部14に生じる力Rが増加し、
この力Rは突起部10の根元付近での曲げ応力と
なるので、突起部10の根元付近の損傷、破壊、
すなわちイジエクタ9の損傷、破壊につながる問
題もあつた。
Furthermore, as the force for inserting and removing the printed wiring board 7 increases, the force R generated at the fulcrum portion 14 of the protrusion 10 of the ejector 9 increases, as shown in FIG.
This force R becomes a bending stress near the base of the protrusion 10, so it may cause damage or destruction near the base of the protrusion 10.
In other words, there was a problem that the ejector 9 was damaged or destroyed.

さらに、従来のイジエクタ9は突起部10とレ
バー部11とによる構造のために印刷配線板7の
接栓部8とコネクタ4との挿抜に要する荷重が、
印刷配線板7が移動するストロークに対して一定
でないために、イジエクタ9のレバー回転角度に
対する所要外力は急激に変化することとなる。こ
の状態を、第4図に示すイジエクタの回転角度と
荷重の関係を示す図を参照すると従来曲線イで示
すように変化の激しい曲線によつて明示されてい
る。なお、図においてAは挿入開始位置、Bは挿
入終了位置とし垂直方向を荷重の変化、水平方向
をイジエクタ回転角度の変化としている。このよ
うな、イジエクタ9の回転角度に対して所要外
力、すなわち荷重が大きく変化することは、例え
ば一本の指でレバー部11を押したり、引いたり
する操作において、操作性を低下させる問題とな
り、引いては機器の安全上の問題ともなつてい
る。
Furthermore, because the conventional ejector 9 has a structure including a protrusion 10 and a lever part 11, the load required for inserting and removing the plug part 8 of the printed wiring board 7 and the connector 4 is reduced.
Since the stroke of the printed wiring board 7 is not constant, the required external force for the lever rotation angle of the ejector 9 changes rapidly. Referring to FIG. 4, which shows the relationship between the rotation angle of the ejector and the load, this state is clearly shown by a rapidly changing curve as shown by conventional curve A. In the figure, A is the insertion start position, B is the insertion end position, the vertical direction is the change in load, and the horizontal direction is the change in the ejector rotation angle. Such a large change in the required external force, that is, the load, with respect to the rotation angle of the ejector 9 poses a problem that reduces operability, for example, when pushing or pulling the lever portion 11 with one finger. This has also become a safety issue for the equipment.

本考案は、少ない占有スペース、一定した小さ
な荷重及び構造が簡単で強度的にも優れたイジエ
クタによる印刷配線板着脱構造を得ることにあ
る。
The object of the present invention is to obtain a structure for attaching and detaching a printed wiring board using an ejector, which occupies less space, has a constant small load, is simple in structure, and has excellent strength.

〔問題点を解決するための手段〕[Means for solving problems]

前記した問題点を解決するために本考案は、印
刷配線板を収容箱に実装する際に収容箱に設置さ
れたコネクタに印刷配線板の接栓部を挿入するた
めに印刷配線板を押圧し移動させるイジエクタを
有する印刷配線板着脱構造において、印刷配線板
の接栓部と反対側の端部近傍の縁に凹部を形成す
るとともに、前記イジエクタを、軸部の外周にら
せんを描く突起を有するらせん状回転体と、該ら
せん状回転体の一部に印刷配線板の挿抜の妨げに
ならないようにその軸方向に設けた切欠きと、軸
部の一端に設けられらせん状回転体を回転させる
回転レバーとから形成し、前記収容箱の印刷配線
板の挿抜が行われる開口部側近傍に、印刷配線板
の挿抜方向と平行な軸線を有し、該軸線上に前記
イジエクタのらせん状回転体の一部が印刷配線板
の凹部とかみ合い、かつ回転レバーが収容箱の前
方に位置するように、該イジエクタを軸部を中心
に回転自在で、収容箱に対し着脱不可に支持する
軸受を設けることとしている。
In order to solve the above-mentioned problems, the present invention is designed to press the printed wiring board in order to insert the connecting part of the printed wiring board into the connector installed in the storage box when mounting the printed wiring board in the storage box. In the printed wiring board attachment/detachment structure having an ejector to be moved, a recess is formed in the edge of the printed wiring board near the end opposite to the plug part, and the ejector has a protrusion forming a spiral on the outer periphery of the shaft part. A spiral rotating body, a notch provided in a part of the spiral rotating body in the axial direction so as not to interfere with insertion and removal of a printed wiring board, and a notch provided at one end of the shaft to rotate the spiral rotating body. The rotating lever has an axis parallel to the insertion/extraction direction of the printed wiring board near the opening side of the storage box through which the printed wiring board is inserted/extracted, and a spiral rotating body of the ejector is formed on the axis. A bearing is provided so that the ejector is rotatable around the shaft portion and non-removably supported with respect to the storage box so that a portion of the ejector engages with the recess of the printed wiring board and the rotation lever is located in front of the storage box. It is said that

〔作用〕[Effect]

前記した手段によれば、印刷配線板をその接栓
部が収容箱のコネクタに当接するまで収容箱に押
し込んだ後、イジエクタの回転レバーを回してイ
ジエクタを回転させることにより、印刷配線板の
凹部とらせん状回転体がかみ合つて、印刷配線板
を収容箱へ挿入する方向へ移動するので、印刷配
線板を更に収容箱内部へと押し込むことができ、
印刷配線板の接栓部のピン配列を収容箱のコネク
タへ挿入することができる。
According to the above-mentioned means, after the printed wiring board is pushed into the storage box until its connecting part contacts the connector of the storage box, the ejector is rotated by turning the rotation lever of the ejector, thereby removing the recess of the printed wiring board. The helical rotating body engages with the printed wiring board and moves in the direction of inserting the printed wiring board into the storage box, so the printed wiring board can be further pushed into the storage box.
The pin arrangement of the plug on the printed wiring board can be inserted into the connector on the storage box.

〔実施例〕〔Example〕

第1図は本考案の一実施例による動作前のイジ
エクタを示し、はその側面図、は正面図であ
り、第2図は動作後のイジエクタを示し、はそ
の側面図、は正面図である。
Fig. 1 shows an ejector before operation according to an embodiment of the present invention, is a side view thereof, and is a front view thereof, and Fig. 2 shows the ejector after operation, is a side view thereof, and is a front view thereof. .

図において、1はガイドプレート、2はガイド
レール、6は収容箱、7は印刷配線板であり、こ
れらは前記した従来のものと同じなので共通の符
号で示した。15は本考案によるイジエクタ、1
6はその軸部、17は軸部16の外周に突出形成
したらせん状回転体、18はらせん状回転体17
の一個所に設けた切欠き、19は軸部16の一端
に設けた回転レバーである。このように構成され
るイジエクタ15の材質は、例えば硬質プラスツ
クや金属等の剛性材料としている。
In the figure, 1 is a guide plate, 2 is a guide rail, 6 is a storage box, and 7 is a printed wiring board, which are the same as those of the conventional device described above, and are therefore designated by the same reference numerals. 15 is an ejector according to the present invention; 1
6 is a shaft thereof, 17 is a spiral rotating body protruding from the outer periphery of the shaft 16, and 18 is a spiral rotating body 17.
A notch 19 provided at one location is a rotating lever provided at one end of the shaft portion 16. The material of the ejector 15 constructed in this manner is, for example, a rigid material such as hard plastic or metal.

20は前記ガイドプレート1の開放端を曲折し
た軸受部、21は前記印刷配線板7の一端上側に
設けた凹部であり、前記イジエク15はその軸部
16を前記軸受部20に回転可能に支持されてい
る。この時の軸部16は印刷配線板7の挿入方向
と同じ方向で軸受部20に支持され、らせん状回
転体17が印刷配線板7の凹部21にかみ合い、
かつ回転レバー19が収容箱6の前方に位置する
ように構成されている。22は軸受部20から突
出したイジエクタ15の軸部16に取付けたイジ
エクタ15の抜止め部であり、これにより、イジ
エクタ15はその軸方向には移動不可に軸受部2
0に支持され、収容箱6に対し着脱不可となつて
いる。
Reference numeral 20 denotes a bearing portion formed by bending the open end of the guide plate 1; 21 is a recess provided above one end of the printed wiring board 7; has been done. At this time, the shaft portion 16 is supported by the bearing portion 20 in the same direction as the insertion direction of the printed wiring board 7, and the spiral rotating body 17 engages with the recess 21 of the printed wiring board 7.
Further, the rotary lever 19 is configured to be located in front of the storage box 6. Reference numeral 22 denotes a retaining portion of the ejector 15 attached to the shaft portion 16 of the ejector 15 protruding from the bearing portion 20, so that the ejector 15 cannot move in the axial direction.
0 and cannot be attached to or detached from the storage box 6.

本実施例は前記のような構成となつており、図
には示されていないが、下方に位置するガイドプ
レートにも前記同様にイジエクタ15が設けられ
ている。そして、これも図示されてないが印刷配
線板7には接栓部があり、この接栓部のピン配列
等が収容箱6のコネクタに挿入されて印刷配線板
7が外部と電気的に接続するのは従来同様であ
る。
The present embodiment has the above-mentioned configuration, and although not shown in the figure, the guide plate located below is also provided with an ejector 15 in the same manner as described above. Although this is also not shown, the printed wiring board 7 has a plug part, and the pin arrangement of this plug part is inserted into the connector of the storage box 6, and the printed wiring board 7 is electrically connected to the outside. This is the same as before.

前記のような構成において、印刷配線板7を収
容箱6に実装するには、第1図に示す動作前のイ
ジエクタ15の切欠き18から印刷配線板7を収
容箱6のガイドレール2へと挿入し、印刷配線板
7の図示されていない接栓部を収容箱6の図示さ
れていないコネクタへと導きコネクタに当接する
まで押込み、第1図に示すように印刷配線板7の
凹部21がらせん状回転体17に対応する位置と
する。
In the above configuration, in order to mount the printed wiring board 7 in the storage box 6, the printed wiring board 7 is inserted into the guide rail 2 of the storage box 6 through the notch 18 of the ejector 15 before operation as shown in FIG. Insert the printed wiring board 7 into the connector (not shown) of the storage box 6 and push it in until it makes contact with the connector, until the recess 21 of the printed wiring board 7 is aligned as shown in FIG. The position corresponds to the spiral rotating body 17.

この状態でイジエクタ15を回転レバー19を
用いて時計方向に回転すると、イジエクタ15の
らせん状回転体17が印刷配線板7の凹部21に
かみ合い、更にイジエクタ15を回転するとらせ
ん状回転体17は、凹部21内で印刷配線板7の
挿入方向へと位置を移動するので、凹部21の一
側に当接して印刷配線板7を第2図に示すように
収容箱6内へと押込み、印刷配線板7の図示され
ていない接栓部のピン配列等を収容箱6の図示さ
れていないコネクタへと挿入することができ、印
刷配線板7の収容箱6への実装は完了する。
In this state, when the ejector 15 is rotated clockwise using the rotary lever 19, the spiral rotating body 17 of the ejector 15 engages with the recess 21 of the printed wiring board 7, and when the ejector 15 is further rotated, the spiral rotating body 17 Since the position of the printed wiring board 7 is moved in the insertion direction within the recess 21, the printed wiring board 7 is pushed into the storage box 6 by contacting one side of the recess 21 as shown in FIG. The pin arrangement and the like of the connectors (not shown) of the board 7 can be inserted into the connectors (not shown) of the storage box 6, and the mounting of the printed wiring board 7 into the storage box 6 is completed.

前記したイジエクタ15の時計方向への回転は
270°位行なうことによつて、収容箱6への印刷配
線板7の前記したような実装を行なつている。
The clockwise rotation of the ejector 15 described above is as follows:
The printed wiring board 7 is mounted on the storage box 6 as described above by performing the mounting at an angle of about 270 degrees.

前記のように収容箱6に実装した印刷配線板7
を収容箱6ら抜去するには、第2図に示す状態に
おいて回転レバー19を用いてイジエクタ15を
反時計方向に回転する。すると、イジエクタ15
のらせん状回転体17は、凹部21内で印刷配線
板7の挿入方向とは逆方向に位置を移動するの
で、前記とは反対の凹部21の一側に当接して印
刷配線板7を収容箱6から引抜く方向に移動さ
せ、印刷配線板7の図示されていない接栓部は収
容箱6の図示されていないコネクタから抜去さ
れ、第1図に示す状態となる。その後の、印刷配
線板7は何んの抵抗もなく収容箱6から引抜くこ
とができる。
Printed wiring board 7 mounted in storage box 6 as described above
To remove the ejector 15 from the storage box 6, the ejector 15 is rotated counterclockwise using the rotary lever 19 in the state shown in FIG. Then, Ijiekta 15
The spiral rotating body 17 moves in the recess 21 in a direction opposite to the direction in which the printed wiring board 7 is inserted, so it comes into contact with one side of the recess 21 opposite to the above and accommodates the printed wiring board 7. When the printed wiring board 7 is moved in the pulling direction from the box 6, the unillustrated connectors of the printed wiring board 7 are pulled out from the unillustrated connectors of the housing box 6, resulting in the state shown in FIG. Thereafter, the printed wiring board 7 can be pulled out from the storage box 6 without any resistance.

次に、前記したイジエクタ15による印刷配線
板7の挿入時の荷重Fと印刷配線板7の挿入力P
との関係を第3図に基づいて説明する。第3図は
イジエクタ15を示し、は側面図、は正面図
である。
Next, the load F when the printed wiring board 7 is inserted by the ejector 15 described above and the insertion force P of the printed wiring board 7
The relationship between the two will be explained based on FIG. FIG. 3 shows the ejector 15, and is a side view and a front view.

荷重Fと挿入力Pとの関係は、P={I2/I1
tan(α+λ)}・Fで表わされる。なお、αはらせ
ん状回転体17と凹部21との接触角度,λは摩
擦角を示す。
The relationship between load F and insertion force P is P={I 2 /I 1
It is expressed as tan(α+λ)}・F. Note that α represents the contact angle between the helical rotating body 17 and the recess 21, and λ represents the friction angle.

ここで、(α+λ)を10°〜20°程度と考えれば、
従来のてこの原理によるイジエクタの挿入力に比
べて、本実施例のイジエクタ15による挿入力は
2〜6倍程度と大きな力を発生することができ
る。
Here, if we consider (α+λ) to be about 10° to 20°, then
Compared to the insertion force of the conventional ejector based on the lever principle, the insertion force of the ejector 15 of this embodiment can generate about 2 to 6 times as much force.

次に、イジエクタ15の回転角度と荷重の関係
を示す第4図に基づいて、イジエクタ15の回転
角度に対する荷重の関係を説明する。なお、図に
おいてAは印刷配線板7の挿入開始位置、Bは挿
入終了位置を示し、垂直方向に荷重の変化を、水
平方向にイジエクタ15の回転角度の変化を示
し、イは前記従来例で説明した従来の荷重を示す
曲線、ロは本実施例での荷重を示す曲線である。
Next, the relationship between the rotation angle of the ejector 15 and the load will be explained based on FIG. 4 showing the relationship between the rotation angle of the ejector 15 and the load. In the figure, A indicates the insertion start position of the printed wiring board 7, B indicates the insertion end position, the vertical direction indicates the change in load, the horizontal direction indicates the change in the rotation angle of the ejector 15, and A indicates the conventional example. The curve showing the conventional load described above is a curve showing the load in this embodiment.

本実施例で示すイジエクタ15の構造において
は、らせん状回転体17と印刷配線板7の凹部2
1との接触角度αを回転角度ごとに変化させるこ
とで、各回転角度における挿入力Pと、荷重Fと
の比、I2/I1・tan(α+λ)を変えることができ
るため、らせん状回転体17の形状を最適化する
ことで、第4図に示す曲線ロに明示されるように
イジエクタ回転角度の変化に対する荷重の変化を
非常に少なくすることができ、印刷配線板7を挿
入するイジエクタ15への必要な荷重をほぼ一定
にすることができる。
In the structure of the ejector 15 shown in this embodiment, the spiral rotating body 17 and the recess 2 of the printed wiring board 7
By changing the contact angle α with 1 for each rotation angle, the ratio of the insertion force P to the load F, I 2 /I 1 ·tan (α + λ), at each rotation angle can be changed. By optimizing the shape of the rotating body 17, as clearly shown in curve B shown in FIG. The required load on the ejector 15 can be kept almost constant.

なお、前記実施例では印刷配線板7に凹部21
を設けて、イジエクタ15のらせん状回転体17
ガ前記凹部21にかみ合つて印刷配線板7を移動
する構造となつているが、これはカム溝を形成し
た小片を印刷配線板7に取付けて、該カム溝にら
せん状回転体17がかみ合う構造としてもよいの
で、前記実施例の構造に限定されるものではな
く、イジエクタ15の回転によるらせん状回転体
17の作用が印刷配線板7に伝わる構造であれば
よい。
Note that in the above embodiment, the printed wiring board 7 has a recess 21.
The helical rotating body 17 of the ejector 15 is
The structure is such that the printed wiring board 7 is moved by engaging with the recess 21, but this is done by attaching a small piece with a cam groove to the printed wiring board 7, and then engaging the helical rotating body 17 in the cam groove. The present invention is not limited to the structure of the embodiment described above, and any structure may be used as long as the action of the spiral rotating body 17 due to the rotation of the ejector 15 is transmitted to the printed wiring board 7.

〔考案の効果〕[Effect of idea]

以上説明したように本考案では、印刷配線板の
接栓部と反対側の端部近傍の縁に凹部を形成する
とともに、イジエクタを軸部の外周にらせんを描
く突起を有するらせん状回転体と、該らせん状回
転体の一部に印刷配線板の挿抜の妨げにならない
ようにその軸方向に設けた切欠きと、軸部の一端
に設けられらせん状回転体を回転させる回転レバ
ーとから形成し、前記収容箱の印刷配線板の挿抜
が行われる開口部側近傍に、印刷配線板の挿抜方
向と平行な軸線を有し、該軸線上に前記イジエク
タのらせん状回転体の一部が印刷配線板の凹上記
とかみ合い、かつ回転レバーが収容箱の前方に位
置するように、該イジエクタを軸部を中心に回転
自在で、収容箱に対し着脱不可に支持する軸受け
を設ることとしている。
As explained above, in the present invention, a recess is formed in the edge of the printed wiring board near the end opposite to the plug, and the ejector is formed into a spiral rotating body having a spiral protrusion on the outer periphery of the shaft. , formed of a notch provided in a part of the helical rotating body in the axial direction so as not to interfere with insertion and removal of the printed wiring board, and a rotation lever provided at one end of the shaft portion for rotating the helical rotating body. The storage box has an axis parallel to the insertion/extraction direction of the printed wiring board near the opening side where the printed wiring board is inserted/extracted, and a part of the spiral rotating body of the ejector is printed on the axis. A bearing is provided that engages with the concavity of the wiring board and supports the ejector in a manner that allows the ejector to rotate around the shaft portion and not be detachable from the storage box so that the rotation lever is located in front of the storage box. .

このように、らせん状回転体の回転運動を、該
らせん状回転体の一部を印刷配線板の凹部とかみ
合わせることで、印刷配線板の挿抜方向の直進運
動に変換する構造なので、従来のレバー部を有し
たイジエクタに比べて取付および動作における占
有空間を大きく縮少する効果があり、これは従来
のレバー部の回転スペース分はケーブル類を通す
ことができず印刷配線板における前面側のコネク
タの配置やケーブル類のアクセスに支障をきたす
ことを解決し、このような無駄なスペースを大幅
に縮少する効果となつている。
In this way, the structure converts the rotational motion of the spiral rotating body into linear motion in the insertion/extraction direction of the printed wiring board by engaging a part of the spiral rotating body with the recess of the printed wiring board. Compared to an ejector with a lever part, it has the effect of greatly reducing the space occupied during installation and operation. This solves the problem of hindrances to connector placement and cable access, and has the effect of significantly reducing such wasted space.

また、従来のイジエクタはレバー部と突起部に
よつて構成されているので、印刷配線板の挿抜力
を大きくするためにレバー部を長くしなければな
らず占有空間の増加を助長していたが、本考案の
イジエクタではらせん状回転体の角度を変えるこ
とにより挿抜力を増加することができるために占
有面積を増加することもなく、しかも従来の挿抜
力より格段に大きな挿抜力を得ることができる効
果もある。
Furthermore, since conventional ejectors are composed of a lever part and a protrusion, the lever part must be made longer in order to increase the force for inserting and removing printed wiring boards, which increases the space occupied. In the ejector of the present invention, the insertion/extraction force can be increased by changing the angle of the spiral rotating body, so the occupied area is not increased, and moreover, it is possible to obtain a much larger insertion/extraction force than the conventional insertion/extraction force. There are some effects that can be achieved.

さらに、従来のイジエクタは動作時における力
の応力集中が生じるので損傷しやすいという問題
があつたが、本考案のイジエクタはらせん状回転
体によるので極端な応力集中がなく強度的に優れ
ている効果があると共に、構造が簡単である。
Furthermore, conventional ejectors have the problem of being easily damaged due to stress concentration during operation, but the ejector of the present invention uses a spiral rotating body, so there is no extreme stress concentration and it has excellent strength. In addition, the structure is simple.

そして、本考案のイジエクタはらせん状回転体
の角度をイジエクタの回転角ごとに変化させて、
イジエクタが印刷配線板を挿抜するための必要荷
重をほぼ一定にすることができるので、イジエク
タを操作する際に従来の急激な荷重変化を生じる
イジエクタに比べて操作性・安全性を大きく向上
させる効果もある。加えて、回転レバーを摘んで
ねじるという力の入れやすい操作なので一層の操
作性向上を行なうことができる。
The ejector of the present invention changes the angle of the spiral rotating body for each rotation angle of the ejector,
Since the required load for the ejector to insert and remove the printed wiring board can be kept almost constant, operability and safety are greatly improved compared to conventional ejectors that cause sudden changes in load when operating the ejector. There is also. In addition, since it is easy to apply force by pinching and twisting the rotary lever, operability can be further improved.

取付けにおいても印刷配線板の収容箱のガイド
プレートを軸受としているので、部点数も最少で
すみ構造も簡単で強度的にも優れたものとなつて
いる。
In mounting, the guide plate of the printed wiring board storage box is used as a bearing, so the number of parts is kept to a minimum, and the structure is simple and has excellent strength.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の一実施例を示すイジエクタの
動作前を示す側面図及び正面図、第2図はその動
作後を示す側面図及び正面図、第3図はイジエク
タの原理を説明するイジエクタの側面図及び正面
図、第4図はイジエクタの回転角度と荷重の関係
を示すグラフ、第5図従来の印刷配線板着脱構造
を示す側断面図、第6図従来のイジエクタの側面
図である。 4……コネクタ、6……収容箱、7……印刷配
線板、15……イジエクタ、16……軸部、17
……らせん状回転体、19……回転レバー、21
……凹部。
Fig. 1 is a side view and front view showing an ejector before operation, showing an embodiment of the present invention, Fig. 2 is a side view and front view showing the ejector after its operation, and Fig. 3 is an ejector illustrating the principle of the ejector. Fig. 4 is a graph showing the relationship between the rotation angle of the ejector and the load, Fig. 5 is a side sectional view showing the conventional printed wiring board attachment/detachment structure, and Fig. 6 is a side view of the conventional ejector. . 4...Connector, 6...Accommodation box, 7...Printed wiring board, 15...Ejector, 16...Shaft portion, 17
... Spiral rotating body, 19 ... Rotating lever, 21
...Concavity.

Claims (1)

【実用新案登録請求の範囲】 印刷配線板を収納箱に実装する際に収納箱に設
置されたコネクタに印刷配線板の接栓部を挿入す
るために印刷配線板を押圧し移動させるイジエク
タを有する印刷配線板着脱構造において、 印刷配線板の接栓部と反対側の端部近傍の縁に
凹部を形成するとともに、 前記イジエクタを、軸部の外周にらせんを描く
突起を有するらせん状回転体と、該らせん状回転
体の一部に印刷配線板の挿抜の妨げにならないよ
うにその軸方向に設けた切欠きと、軸部の一端に
設けられらせん状回転体を回転させる回転レバー
とから形成し、 前記収納箱の印刷配線板の挿抜が行われる開口
部側近傍に、印刷配線板の挿抜方向と平行な軸線
を有し、該軸線上に前記イジエクタのらせん状回
転体の一部が印刷配線板の凹部とかみ合い、かつ
回転レバーが収納箱の前方に位置するように、該
イジエクタを軸部を中心に回転自在で、収容箱に
対し着脱不可に支持する軸受を設けたことを特徴
とする印刷配線板着脱構造。
[Scope of Claim for Utility Model Registration] Having an ejector that presses and moves the printed wiring board in order to insert the connector of the printed wiring board into the connector installed in the storage box when mounting the printed wiring board in the storage box. In the printed wiring board attachment/detachment structure, a recess is formed in the edge of the printed wiring board near the end opposite to the plug, and the ejector is a spiral rotating body having a spiral protrusion on the outer periphery of the shaft. , formed of a notch provided in a part of the helical rotating body in the axial direction so as not to interfere with insertion and removal of the printed wiring board, and a rotation lever provided at one end of the shaft portion for rotating the helical rotating body. The storage box has an axis parallel to the insertion/extraction direction of the printed wiring board near the opening side where the printed wiring board is inserted/extracted, and a part of the spiral rotating body of the ejector is printed on the axis. The ejector is provided with a bearing that engages with the concave portion of the wiring board and supports the ejector in a manner that allows the ejector to rotate freely around the shaft and not be detachable from the storage box so that the rotation lever is positioned in front of the storage box. Printed wiring board removable structure.
JP12467184U 1984-08-17 1984-08-17 Printed wiring board attachment/detachment structure Granted JPS6139985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12467184U JPS6139985U (en) 1984-08-17 1984-08-17 Printed wiring board attachment/detachment structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12467184U JPS6139985U (en) 1984-08-17 1984-08-17 Printed wiring board attachment/detachment structure

Publications (2)

Publication Number Publication Date
JPS6139985U JPS6139985U (en) 1986-03-13
JPH056707Y2 true JPH056707Y2 (en) 1993-02-19

Family

ID=30683398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12467184U Granted JPS6139985U (en) 1984-08-17 1984-08-17 Printed wiring board attachment/detachment structure

Country Status (1)

Country Link
JP (1) JPS6139985U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS413906Y1 (en) * 1964-05-11 1966-03-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS413906Y1 (en) * 1964-05-11 1966-03-10

Also Published As

Publication number Publication date
JPS6139985U (en) 1986-03-13

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