JP2011134868A - Printed circuit board mounting structure - Google Patents

Printed circuit board mounting structure Download PDF

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Publication number
JP2011134868A
JP2011134868A JP2009292545A JP2009292545A JP2011134868A JP 2011134868 A JP2011134868 A JP 2011134868A JP 2009292545 A JP2009292545 A JP 2009292545A JP 2009292545 A JP2009292545 A JP 2009292545A JP 2011134868 A JP2011134868 A JP 2011134868A
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Prior art keywords
screw
wiring board
printed wiring
boss
connector
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Japanese (ja)
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Takeshi Yasuto
武志 安渡
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Yamaha Corp
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Yamaha Corp
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack
    • H05K7/1401Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1415Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means manual gripping tools

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Combinations Of Printed Boards (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printed circuit board mounting structure in which a first printed wiring board is easily and firmly mounted parallel to a second printed wiring board with a predetermined clearance kept therebetween. <P>SOLUTION: First boss members 15, 16 and a first connector 17 are provided upright on the bottom surface of a first printed wiring board 11. The shafts of screws 12, 13 are loosely fitted in through-holes of the first printed wiring board 11 and the first boss members 12, 13 in a drop-off prevented state. Second boss members 22, 23 and a second connector 24 are provided upright on the top surface of a second printed wiring board 21. The first connector 17 is electrically connected to the second connector 24, and the shafts of screws 12, 13 are screwed into holes 22a, 23a of the second boss members 22, 23 via the first boss members 15, 16. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、電子機器のプリント回路板に他のプリント回路板を取付けるためのプリント回路板取付構造に関するものである。例えば、ユーザが電子機器のプリント回路板に、この電子機器の機能を拡張するプリント回路板を取付ける場合に適したものである。   The present invention relates to a printed circuit board mounting structure for mounting another printed circuit board on a printed circuit board of an electronic device. For example, this is suitable when a user attaches a printed circuit board that expands the functions of the electronic device to the printed circuit board of the electronic device.

電子機器、例えば、電子鍵盤楽器において、ユーザが、その筐体の背面や底面のカバーを外し、拡張ボードや拡張メモリ等の拡張プリント回路板を追加するものがある(非特許文献1参照)。拡張ボードは、電子鍵盤楽器の本体プリント回路板のコネクタにフラットケーブルで接続され、ねじ部材で固定される。拡張メモリは、そのプリント回路板のエッジ端子が本体プリント回路板のコネクタに差し込まれた後、このコネクタの抜け止めフックで固定される。
しかし、フラットケーブルはその収容部が必要である。一方、エッジ端子は、プリント回路板の厚さがコネクタ端子の接触圧に影響を与える。また、プリント回路板は、本体プリント回路板に対して平行に重ねることができない。
In some electronic devices, for example, electronic keyboard instruments, the user removes the back and bottom covers of the housing and adds an extended printed circuit board such as an expansion board or an expansion memory (see Non-Patent Document 1). The expansion board is connected to the connector of the main printed circuit board of the electronic keyboard instrument with a flat cable and fixed with a screw member. The extended memory is fixed by a retaining hook of the connector after the edge terminal of the printed circuit board is inserted into the connector of the main body printed circuit board.
However, the flat cable needs a housing portion. On the other hand, in the edge terminal, the thickness of the printed circuit board affects the contact pressure of the connector terminal. Also, the printed circuit board cannot be stacked in parallel with the main body printed circuit board.

一般に、一方のプリント回路板の端子と、他方のプリント回路板の端子との両者をコネクタとした「ツーピース・コネクタ」が使用されている(特許文献1に記載の従来技術や特許文献2参照)。この「ツーピース・コネクタ」では、端子数が増えても安定な電気的接続が実現される。また、プリント回路板を平行に重ねることができる。
特許文献1に従来技術として記載の技術では、一方のプリント回路板を他方のプリント回路板に固定するのにねじ部材を用いる。しかし、別売りの拡張プリント回路板の取付けにねじ部材を用いる場合、ねじ部材を同梱する必要がある。また、ユーザが、拡張プリント回路板を取外した場合、ねじ部材を保管する必要がある。
In general, a “two-piece connector” is used in which both a terminal of one printed circuit board and a terminal of the other printed circuit board are used as connectors (see the prior art described in Patent Document 1 and Patent Document 2). . With this “two-piece connector”, stable electrical connection is realized even if the number of terminals increases. Also, printed circuit boards can be stacked in parallel.
In the technique described in Patent Document 1 as the prior art, a screw member is used to fix one printed circuit board to the other printed circuit board. However, when a screw member is used to attach an optional extended printed circuit board, it is necessary to enclose the screw member. Further, when the user removes the extended printed circuit board, the screw member needs to be stored.

また、特許文献2に記載の技術では、一方のコネクタに2個の係合突起が設けられ、他方のコネクタに2個のロック爪と、このロック爪に係合可能な2個の操作片が設けられ、プラグ用基板に操作開口部が設けられている。ユーザが、コネクタ同士を結合すれば、係合突起とロック爪とが係合する。ユーザは、操作開口部に指を挿入し操作片を操作することにより、係合を解除できる。
このようなコネクタを、拡張プリント回路板の取付構造に採用すれば、ねじ部材が不要で、拡張プリント回路板の取付け・取外しが容易である。しかし、係合突起やロック爪のない汎用のコネクタが使用できない。また、係合突起とロック爪との係合のみでは、拡張プリント回路板の取付強度が不足するおそれがある。
Moreover, in the technique described in Patent Document 2, two engagement protrusions are provided on one connector, two lock claws and two operation pieces that can be engaged with the lock claws are provided on the other connector. An operation opening is provided in the plug substrate. When the user connects the connectors, the engaging protrusion and the locking claw are engaged. The user can release the engagement by inserting a finger into the operation opening and operating the operation piece.
If such a connector is employed in the extension printed circuit board mounting structure, a screw member is unnecessary, and the extension printed circuit board can be easily attached and detached. However, general-purpose connectors that do not have engagement protrusions or lock claws cannot be used. Moreover, the attachment strength of the extended printed circuit board may be insufficient only by the engagement of the engagement protrusion and the lock claw.

MOTIF ES6/MOTIF ES7/MOTIF ES8取扱説明書、p.282-289[online]、インターネット、http://www2.yamaha.co.jp/manual/pdf/emi/japan/synth/MOTIFESJ1.pdf   MOTIF ES6 / MOTIF ES7 / MOTIF ES8 Instruction Manual, p.282-289 [online], Internet, http://www2.yamaha.co.jp/manual/pdf/emi/japan/synth/MOTIFESJ1.pdf

特開平11−126985号公報JP-A-11-126985 特開2008−251205号公報JP 2008-251205 A

本発明は、上述した問題点を解決するためになされたもので、第1のプリント回路板における第1のプリント配線板が、第2のプリント回路板における第2のプリント配線板に対し、容易かつ強固に所定間隔を維持して平行に取付けられるプリント回路板取付構造を提供することを目的とするものである。   The present invention has been made to solve the above-described problems, and the first printed wiring board in the first printed circuit board is easier than the second printed wiring board in the second printed circuit board. It is another object of the present invention to provide a printed circuit board mounting structure that can be firmly mounted in parallel while maintaining a predetermined interval.

本発明は、請求項1に記載の発明においては、第1のプリント回路板における第1のプリント配線板が、第2のプリント回路板における第2のプリント配線板に対し、所定間隔を維持して平行に取付けられるプリント回路板取付構造において、第1のボス部材及び第1のコネクタが、前記第1のプリント配線板の、前記第2のプリント配線板に対向する面に立設され、前記第1のボス部材は貫通孔を有し、該貫通孔に、ねじ部材の軸部が挿通されており、第2のボス部材及び第2のコネクタが、前記第2のプリント配線板の、前記第1のプリント配線板に対向する面に立設され、前記第2のボス部材は、ねじが形成された孔を有しており、前記第1のプリント配線板の取付け前において、前記ねじ部材の軸部が前記第1のボス部材の貫通孔に脱落防止された状態で遊嵌され、前記第1のプリント配線板の取付け時において、前記第1のコネクタが前記第2のコネクタと電気的に接続され、前記ねじ部材の軸部が前記第1のボス部材を介して前記第2のボス部材の孔にねじ結合されるものである。
従って、ねじ部材により、第1のプリント配線板が第2のプリント配線板に容易かつ強固に取付けられる。また、第1のプリント配線板の取外しも容易である。
ねじ部材は、第1のプリント配線板の取付け前において、第1のプリント配線板からの脱落が防止される。その際、第2のボス部材とともに、第1のプリント配線板が第2のプリント配線板に対し、所定間隔を維持するための第1のボス部材が、ねじ部材の脱落防止部材を兼ねるので、少ない構成部品で脱落防止が実現される。
In the invention according to claim 1, the first printed wiring board in the first printed circuit board maintains a predetermined distance from the second printed wiring board in the second printed circuit board. In the printed circuit board mounting structure mounted in parallel, the first boss member and the first connector are erected on the surface of the first printed wiring board facing the second printed wiring board, The first boss member has a through hole, the shaft portion of the screw member is inserted through the through hole, and the second boss member and the second connector are connected to the second printed wiring board. The second boss member is erected on a surface facing the first printed wiring board, and the second boss member has a hole in which a screw is formed. Before the first printed wiring board is attached, the screw member The shaft part is the through hole of the first boss member The first connector is electrically connected to the second connector when the first printed wiring board is attached, and the shaft portion of the screw member is the first portion. This is screwed into the hole of the second boss member via the boss member.
Therefore, the first printed wiring board can be easily and firmly attached to the second printed wiring board by the screw member. Also, the first printed wiring board can be easily removed.
The screw member is prevented from dropping from the first printed wiring board before the first printed wiring board is attached. At that time, together with the second boss member, the first printed wiring board maintains the predetermined distance from the second printed wiring board, and the first boss member also serves as a screw member drop-off preventing member. Drop-off prevention is realized with few components.

上述した第1のボス部材、第2のボス部材、ねじ部材は、それぞれ、2個以上あることが好ましい。第1のプリント配線板において、2個の第1のボス部材の中心を結ぶ線上の位置に第1のコネクタを配置し、第2のプリント配線板において、2個の第2のボス部材の中心を結ぶ線上の位置に第2のコネクタを配置することが好ましい。このような配置であれば、2個のねじ部材の締結により、第1のコネクタと第2のコネクタとが確実に結合され、その電気的接続が安定する。   It is preferable that there are two or more first boss members, second boss members, and screw members, respectively. In the first printed wiring board, the first connector is disposed at a position on a line connecting the centers of the two first boss members, and in the second printed wiring board, the centers of the two second boss members are arranged. It is preferable to arrange the second connector at a position on the line connecting the two. With such an arrangement, the first connector and the second connector are reliably coupled by fastening the two screw members, and the electrical connection is stabilized.

請求項2に記載の発明においては、請求項1に記載のプリント回路板取付構造において、前記ねじ部材の軸部は、首側に連結部を、ねじ先側にねじ部を有するものであり、前記第1のボス部材の貫通孔は、前記第1のプリント配線板の側に、前記ねじ部材のねじ部と結合するとともに、前記ねじ部材の連結部を遊嵌するねじ部を有し、前記第2のプリント配線板に対向する側に、前記ねじ部材の連結部及びねじ部を共に遊嵌する凹部を有するものであり、前記第1のプリント配線板の取付け前において、前記第1のボス部材のねじ部に前記ねじ部材のねじ部がねじ込まれた後に、前記第1のボス部材のねじ部に前記ねじ部材の連結部が遊嵌されることにより、前記ねじ部材の軸部が前記第1のボス部材の貫通孔に脱落防止された状態で遊嵌されるようにしたものである。
従って、簡単な構造の第1のボス部材により、ねじ部材の脱落防止が実現される。
In the invention according to claim 2, in the printed circuit board mounting structure according to claim 1, the shaft portion of the screw member has a connecting portion on the neck side and a screw portion on the screw tip side, The through hole of the first boss member has a screw portion that is coupled to the screw portion of the screw member and loosely fits the connecting portion of the screw member on the first printed wiring board side, On the side facing the second printed wiring board, there is a recess for loosely fitting both the connecting portion and the threaded portion of the screw member, and before the first printed wiring board is mounted, the first boss After the screw portion of the screw member is screwed into the screw portion of the member, the connecting portion of the screw member is loosely fitted to the screw portion of the first boss member, so that the shaft portion of the screw member is 1 is loosely fitted in the through-hole of the boss member while being prevented from falling off. It was made to do.
Accordingly, the screw member can be prevented from falling off by the first boss member having a simple structure.

請求項3に記載の発明においては、請求項2に記載のプリント回路板取付構造において、前記第1のボス部材の凹部の深さは、前記ねじ部材のねじ部の長さ以上であることにより、前記第1のプリント配線板の取付け前において、前記ねじ部材のねじ部が前記第1のボス部材の凹部に収容可能な状態で遊嵌されるようにしたものである。
従って、第1のボス部材と第2のボス部材とが当接している状態において、ねじ部材が第2のボス部材にねじ込まれるから、締結作業が円滑に行われる。特に、第1のボス部材、第2のボス部材、ねじ部材が2個以上ある場合でも、ねじ部材は、一本ずつ、対応する第2のボス部材に円滑にねじ込まれる。
According to a third aspect of the present invention, in the printed circuit board mounting structure according to the second aspect, the depth of the concave portion of the first boss member is equal to or greater than the length of the screw portion of the screw member. The screw portion of the screw member is loosely fitted in the recess of the first boss member before the first printed wiring board is attached.
Therefore, since the screw member is screwed into the second boss member in a state where the first boss member and the second boss member are in contact with each other, the fastening operation is smoothly performed. In particular, even when there are two or more first boss members, second boss members, and screw members, the screw members are smoothly screwed into the corresponding second boss members one by one.

上述した本発明によれば、第1のプリント配線板が、第2のプリント配線板に容易かつ強固に取付けられ、かつ、第1のコネクタと第2のコネクタとの結合が不用意に外れないという効果がある。
ねじ部材を紛失することなく、第1のプリント回路板を供給、保管できるという効果がある。第1のプリント配線板のねじ部材以外の箇所に、なるべく手を触れないで取付作業ができるという効果がある。
特に、ユーザが、拡張プリント回路板を、電子機器の本体プリント回路板に追加取付けする場合に適する。
According to the present invention described above, the first printed wiring board is easily and firmly attached to the second printed wiring board, and the connection between the first connector and the second connector is not inadvertently disconnected. There is an effect.
There is an effect that the first printed circuit board can be supplied and stored without losing the screw member. There is an effect that the attachment work can be performed without touching a portion other than the screw member of the first printed wiring board as much as possible.
This is particularly suitable when the user additionally attaches the extended printed circuit board to the main body printed circuit board of the electronic device.

本願発明に使用する拡張プリント回路板及び本体プリント回路板の実施の一形態の説明図である。It is explanatory drawing of one Embodiment of the expansion printed circuit board used for this invention, and a main body printed circuit board. 図1(c)に示された、ねじ結合状態を説明する模式図である。It is a schematic diagram explaining the screw coupling | bonding state shown by FIG.1 (c). 図1に示された第1のプリント配線板を第2のプリント配線板に取付ける方法の説明図である。It is explanatory drawing of the method of attaching the 1st printed wiring board shown by FIG. 1 to a 2nd printed wiring board. 本願発明を適用する電子鍵盤楽器の外観図である。1 is an external view of an electronic keyboard instrument to which the present invention is applied.

図1は、本願発明に使用される拡張プリント回路板1及び本体プリント回路板2の実施の一形態の説明図である。
図1(a)は拡張プリント回路板1の平面図、図1(b)はその底面図、図1(c)は、拡張プリント回路板1と本体プリント回路板2との結合状態を示す正面図、図1(d)は本体プリント回路板2の部分平面図である。
FIG. 1 is an explanatory diagram of an embodiment of an extended printed circuit board 1 and a main body printed circuit board 2 used in the present invention.
1A is a plan view of the extended printed circuit board 1, FIG. 1B is a bottom view thereof, and FIG. 1C is a front view showing a coupling state of the extended printed circuit board 1 and the main body printed circuit board 2. FIG. 1 and FIG. 1 (d) are partial plan views of the main body printed circuit board 2.

この実施の形態は、拡張プリント回路板(第1のプリント回路板)1における第1のプリント配線板11が、本体プリント回路板(第2のプリント回路板)2における第2のプリント配線板21に対し、所定間隔を維持して平行に取付けられるプリント回路板取付構造である。
図1(a),図1(b)に示されるように、第1のプリント配線板11には、2個の第1のボス部材15,16、第1のコネクタ17、半導体集積回路等の電子回路部品14(1つの電子回路部品にのみ符号14を付した)、その他が実装されている。第1のボス部材15,16及び第1のコネクタ17は、第2のプリント配線板21に対向する、第1のプリント配線板11の底面に立設されている。
In this embodiment, the first printed wiring board 11 in the extended printed circuit board (first printed circuit board) 1 is replaced with the second printed wiring board 21 in the main body printed circuit board (second printed circuit board) 2. On the other hand, it is a printed circuit board mounting structure that is mounted in parallel while maintaining a predetermined interval.
As shown in FIGS. 1A and 1B, the first printed wiring board 11 includes two first boss members 15 and 16, a first connector 17, a semiconductor integrated circuit, and the like. An electronic circuit component 14 (only one electronic circuit component is denoted by reference numeral 14) and the like are mounted. The first boss members 15 and 16 and the first connector 17 are erected on the bottom surface of the first printed wiring board 11 facing the second printed wiring board 21.

図示の例では、第1のプリント配線板11の底面に、ボス部材設置用導電パターン11b,11cが形成され、この上に、第1のボス部材15,16が、半田付けにより実装されている。しかし、立設の方法は半田付けに限らない。例えば、第1のプリント配線板11に取付孔が形成され、この取付孔に第1のボス部材15,16が圧入嵌合されることにより立設されてもよい。
第1のコネクタ17は、第1のプリント配線板11の底面において、2個の第1のボス部材15,16の中心を通る線上の位置に半田付けにより実装されている。配線パターンの図示は省略する。
In the illustrated example, conductive patterns 11b and 11c for boss member installation are formed on the bottom surface of the first printed wiring board 11, and the first boss members 15 and 16 are mounted thereon by soldering. . However, the method of standing is not limited to soldering. For example, the first printed wiring board 11 may be provided with an attachment hole, and the first boss members 15 and 16 may be press-fitted into the attachment hole.
The first connector 17 is mounted on the bottom surface of the first printed wiring board 11 by soldering at a position on a line passing through the centers of the two first boss members 15 and 16. Illustration of the wiring pattern is omitted.

図2を参照して詳述するが、第1のボス部材15,16は、貫通孔として、ねじ部15a,16a、凹部15b,16bを有する。この貫通孔に、2個のねじ部材12,13の軸部が挿通されている。
第1のボス部材15,16が、第1のプリント配線板11の底面上に実装されている場合、第1のプリント配線板11にも、上述した貫通孔と同一軸心上に貫通孔11d,11eが形成され、ここに、ねじ部材12,13の軸部が挿通される。
第1のプリント配線板11の第2のプリント配線板21への取付け前において、ねじ部材12,13の軸部は、第1のプリント配線板の貫通孔11d,11e及び第1のボス部材の上述した貫通孔(ねじ部15a,16a、凹部15b,16b)に脱落防止された状態で遊嵌されている。
As will be described in detail with reference to FIG. 2, the first boss members 15 and 16 have screw portions 15 a and 16 a and concave portions 15 b and 16 b as through holes. The shaft portions of the two screw members 12 and 13 are inserted through the through holes.
When the first boss members 15 and 16 are mounted on the bottom surface of the first printed wiring board 11, the first printed wiring board 11 also has a through hole 11d on the same axis as the through hole described above. , 11e, and the shaft portions of the screw members 12, 13 are inserted therethrough.
Before the first printed wiring board 11 is attached to the second printed wiring board 21, the shaft portions of the screw members 12 and 13 are connected to the through holes 11d and 11e of the first printed wiring board and the first boss member. It is loosely fitted in the above-described through holes (screw portions 15a, 16a, recesses 15b, 16b) in a state of being prevented from falling off.

図1(b)に示される第1のコネクタ17は、ソケット(レセプタクル)型のコネクタである。17aはそのソケット部であり、その内部に開口部17bが設けられ、開口部17bに面するソケット部17aの内壁面には、その長手方向に、図示しない複数本の接触片が設けられている。17c,17dは、接触片の他端部が直角に曲げられて形成された複数本の端子片であり、第1のプリント配線板11の配線パターンに半田付けされている。   The first connector 17 shown in FIG. 1B is a socket (receptacle) type connector. Reference numeral 17a denotes a socket portion, in which an opening portion 17b is provided, and on the inner wall surface of the socket portion 17a facing the opening portion 17b, a plurality of contact pieces (not shown) are provided in the longitudinal direction. . Reference numerals 17 c and 17 d are a plurality of terminal pieces formed by bending the other end of the contact piece at a right angle, and are soldered to the wiring pattern of the first printed wiring board 11.

図1(d)に示されるように、第2のプリント配線板21には、2個の第2のボス部材22,23、第2のコネクタ24、半導体集積回路等の電子回路部品25(1つの電子回路部品にのみ符号25を付した)、その他が実装されている。第2のボス部材22,23及び第2のコネクタ24は、第1のプリント配線板11に対向する、第2のプリント配線板21の上面に立設されている。
図2を参照して説明するように、第2のボス部材22,23は、ねじ部22a,23aのある孔(ねじが形成された孔)を有している。
As shown in FIG. 1D, the second printed wiring board 21 includes two second boss members 22, 23, a second connector 24, and an electronic circuit component 25 (1 such as a semiconductor integrated circuit). Only one electronic circuit component is denoted by reference numeral 25), and others are mounted. The second boss members 22 and 23 and the second connector 24 are erected on the upper surface of the second printed wiring board 21 facing the first printed wiring board 11.
As described with reference to FIG. 2, the second boss members 22, 23 have holes with holes 22 a, 23 a (holes in which screws are formed).

図示の例では、第2のプリント配線板21の上面に、ボス部材設置用導電パターン21a,21bが形成され、この上に、第2のボス部材22,23が、半田付けにより立設されている。しかし、先に説明した第1のボス部材15,16と同様に、立設の手段は半田付けに限らず、圧入嵌合等の方法によってもよい。
第2のコネクタ24は、第2のプリント配線板21の上面において、2個の第2のボス部材22,23の中心を結ぶ線上の位置に半田付けにより実装されている。配線パターンの図示は省略する。
In the illustrated example, conductive patterns 21a and 21b for boss member installation are formed on the upper surface of the second printed wiring board 21, and second boss members 22 and 23 are erected by soldering thereon. Yes. However, like the first boss members 15 and 16 described above, the standing means is not limited to soldering, but may be a method such as press fitting.
The second connector 24 is mounted on the upper surface of the second printed wiring board 21 at a position on a line connecting the centers of the two second boss members 22 and 23 by soldering. Illustration of the wiring pattern is omitted.

21c,21dは、それぞれ、第2のプリント配線板21の上面に印刷された面状マーク、線状マークである。面状マーク21cの図示上端は、第1のプリント配線板の一端辺11aの配置を指示するものである。線状マーク21dは、第1のプリント配線板11の外形状の配置を指示するものである。   21c and 21d are a planar mark and a linear mark printed on the upper surface of the second printed wiring board 21, respectively. The upper end of the planar mark 21c in the figure indicates the arrangement of the one end side 11a of the first printed wiring board. The linear mark 21d instructs the arrangement of the outer shape of the first printed wiring board 11.

図示の第2のコネクタ24はプラグ型のコネクタである。24aはそのハウジングであり、ハウジング24aの内部には、僅かな間隙をあけて、プラグ部24bが設けられ、その間隙に面するプラグ部24bの、図示上下両側面には、その長手方向に沿って、図示しない複数本の接触片が設けられている。24c,24dは、複数本の接触片の他端部が直角に曲げられて形成された複数本の端子片であり、配線パターンの端子部に半田付けされる。
なお、第1のコネクタ17をプラグ型とし、第2のコネクタ24をソケット型としてもよい。
The illustrated second connector 24 is a plug-type connector. Reference numeral 24a denotes a housing, and a plug portion 24b is provided inside the housing 24a with a slight gap, and the plug portion 24b facing the gap is provided along the longitudinal direction on both upper and lower sides in the drawing. A plurality of contact pieces (not shown) are provided. 24c and 24d are a plurality of terminal pieces formed by bending the other end portions of the plurality of contact pieces at right angles, and are soldered to the terminal portions of the wiring pattern.
The first connector 17 may be a plug type and the second connector 24 may be a socket type.

図1(c)に戻って説明を続ける。3aは電子鍵盤楽器3の底板、3bは拡張プリント回路板1を収容する収容部、4は蓋である。
第1のプリント配線板11の第2のプリント配線板21への取付け時において、第1のコネクタ17が第2のコネクタ24と電気的に接続され、ねじ部材12,13の軸部が第1のボス部材15,16を介して第2のボス部材22,23にねじ結合される。
Returning to FIG. 1C, the description will be continued. 3 a is a bottom plate of the electronic keyboard instrument 3, 3 b is a housing portion for housing the extended printed circuit board 1, and 4 is a lid.
When the first printed wiring board 11 is attached to the second printed wiring board 21, the first connector 17 is electrically connected to the second connector 24, and the shaft portions of the screw members 12 and 13 are the first parts. These boss members 15 and 16 are screwed to the second boss members 22 and 23.

図1(b)に示される、第1のコネクタのソケット部17aは、図1(d)に示される、第2のコネクタのハウジング24aとプラグ部24bとの間の間隙に挿入され、第1のコネクタのソケット部17aに、第2のコネクタのプラグ部24bとが嵌合し、第1のコネクタ17の複数本の接触片と第2のコネクタ24の複数本の接触片とが接触する。その結果、第1のコネクタ17が第2のコネクタ24に電気的に接続される。第1のコネクタのソケット部17aの先端領域は、第2のコネクタのハウジング24aの中に収容される。   The socket portion 17a of the first connector shown in FIG. 1 (b) is inserted into the gap between the housing 24a and the plug portion 24b of the second connector shown in FIG. The plug portion 24b of the second connector is fitted into the socket portion 17a of the second connector, and the plurality of contact pieces of the first connector 17 and the plurality of contact pieces of the second connector 24 are in contact with each other. As a result, the first connector 17 is electrically connected to the second connector 24. The tip region of the socket portion 17a of the first connector is accommodated in the housing 24a of the second connector.

図2は、図1(c)に示したねじ結合状態を説明する模式図である。図2(a)はねじ結合される前のものであり、図2(b)はねじ結合状態におけるものである。
いずれも、図1に示した第1のボス部材15,16、第2のボス部材22,23の軸心を通る垂直断面の拡大図であるが、寸法は正確でない。図中、図1と同じ部分には同じ符号を付している。
ねじ部材12,13は、拡張プリント回路板1から脱落しないようにされている。12a,13aは頭部、12b,13bは軸部の首側にある連結部、12c,13cは軸部のねじ先側にある、ねじ部、12d,13dはねじ先部である。
FIG. 2 is a schematic diagram for explaining the screw coupling state shown in FIG. FIG. 2 (a) is before screw connection, and FIG. 2 (b) is in the screw connection state.
Both are enlarged views of vertical sections passing through the axial centers of the first boss members 15 and 16 and the second boss members 22 and 23 shown in FIG. 1, but the dimensions are not accurate. In the figure, the same parts as those in FIG.
The screw members 12 and 13 are prevented from falling off from the extended printed circuit board 1. 12a and 13a are head portions, 12b and 13b are connecting portions on the neck side of the shaft portion, 12c and 13c are screw portions on the screw tip side of the shaft portion, and 12d and 13d are screw tip portions.

図示の頭部12a,13aは、外径がd0の平頭であり、その円周面にローレット目が加工され、ユーザが摘んだり把持したりしやすく、先に図1(a)に示したように、その頭頂部に十字穴が形成され、ドライバーも使用できる。
図示の連結部12b,13bは、ねじが形成されていない円筒部であって、外径がd1、軸心方向の長さがAである。図示のねじ部12c,13cは、外径がd3、軸心方向の長さがBであって、ねじが形成されている。
図示のねじ先部12d,13dは、軸心方向の長さがCである「とがり先」であるが、異なる形状でもよい。
図示の頭部12a,13aの外径d0は、ねじ部12c,13cの外径d3よりも大きく、連結部12b,13bの外径d1は、ねじ部12c,13cの外径d3よりも小さい。
The heads 12a and 13a shown in the figure are flat heads having an outer diameter of d0, and knurled eyes are machined on the circumferential surface thereof so that the user can easily pick and hold them, as shown in FIG. In addition, a cross hole is formed at the top of the head, and a screwdriver can also be used.
The illustrated connecting portions 12b and 13b are cylindrical portions not formed with screws, and have an outer diameter d1 and an axial length A. The illustrated screw portions 12c and 13c have an outer diameter d3 and a length in the axial direction B, and are formed with screws.
The illustrated screw tip portions 12d and 13d are “pointing tips” whose length in the axial direction is C, but may have different shapes.
The outer diameter d0 of the illustrated heads 12a and 13a is larger than the outer diameter d3 of the screw parts 12c and 13c, and the outer diameter d1 of the coupling parts 12b and 13b is smaller than the outer diameter d3 of the screw parts 12c and 13c.

図示の第1のボス部材15,16は、貫通孔として、第1のプリント配線板11の側に、ねじ部15a,16aを有し、第2のプリント配線板21に対向する側に、内径がd4、深さがh2の凹部15b,16bを有する。
図示の例では、第1のプリント配線板11にも、内径d2の貫通孔11d,11eが形成されている。
図示の第1のプリント配線板11の厚みと第1のボス部材15,16の高さとの和は、h1である。第1のプリント配線板11に第1のボス部材15,16が圧入嵌合されているような場合は、第1のボス部材15,16の高さをh1とする。
The illustrated first boss members 15, 16 have threaded portions 15 a, 16 a on the first printed wiring board 11 side as through holes, and have an inner diameter on the side facing the second printed wiring board 21. Has recesses 15b and 16b of d4 and a depth of h2.
In the illustrated example, the first printed wiring board 11 is also formed with through holes 11d and 11e having an inner diameter d2.
The sum of the thickness of the illustrated first printed wiring board 11 and the height of the first boss members 15 and 16 is h1. When the first boss members 15 and 16 are press-fitted into the first printed wiring board 11, the height of the first boss members 15 and 16 is set to h1.

第1のプリント配線板の貫通孔11d,11eの内径d2は、ねじ部材のねじ部12c,13cの外径d3よりも大きい。従って、ねじ部材12,13の軸部(連結部12b,13b、ねじ部12c,13c、及び、ねじ先部12d,13d)は、第1のプリント配線板の貫通孔11d,11eを自由に挿通できる。
なお、本明細書においては、「ねじ部」と「ねじ先部」とを区別している。軸部の先端側における、その外径が「ねじ部」の外径よりも細くされた部分を「ねじ先部」という。
ねじ部材のねじ部12c,13cは、第1のボス部材のねじ部15a,16aと結合する。従って、ねじ部15a,16aの谷径は、ねじ部12c,13cの外径d3より僅かに大きい。また、凹部15b,16bの内径d4は、ねじ部材のねじ部12c,13cの外径d3よりも大きい。
The inner diameter d2 of the through holes 11d and 11e of the first printed wiring board is larger than the outer diameter d3 of the screw portions 12c and 13c of the screw member. Accordingly, the shaft portions (the connecting portions 12b and 13b, the screw portions 12c and 13c, and the screw tip portions 12d and 13d) of the screw members 12 and 13 are freely inserted through the through holes 11d and 11e of the first printed wiring board. it can.
In the present specification, “screw portion” and “screw tip portion” are distinguished. A portion whose outer diameter is thinner than the outer diameter of the “screw portion” on the distal end side of the shaft portion is referred to as a “screw tip portion”.
The screw portions 12c and 13c of the screw member are coupled to the screw portions 15a and 16a of the first boss member. Accordingly, the root diameters of the screw portions 15a and 16a are slightly larger than the outer diameter d3 of the screw portions 12c and 13c. The inner diameter d4 of the recesses 15b and 16b is larger than the outer diameter d3 of the screw portions 12c and 13c of the screw member.

従って、第1のプリント配線板11の第2のプリント配線板21への取付け前において、ねじ部材のねじ部12c,13cが、第1のボス部材のねじ部15a,16aに、ねじ込まれ、さらにねじ込まれると、ねじ結合が外れて、ねじ部材の連結部12b,13bが、第1のボス部材のねじ部15a,16aに遊嵌されるとともに、ねじ部材のねじ部12c,13cが、第1のボス部材の凹部15b,16bに遊嵌される。
その結果、ねじ部材12,13の軸部である、連結部12b,13b及びねじ部12c,13cが共に、第1のプリント配線板11及び第1のボス部材15,16の貫通孔に脱落防止された状態で遊嵌される。
ここで、連結部12b,13bがねじ部15a,16aに脱落防止された状態で遊嵌されるのであれば、連結部12b,13bは、必ずしも円筒形状である必要はない。
Therefore, before the first printed wiring board 11 is attached to the second printed wiring board 21, the screw portions 12c and 13c of the screw member are screwed into the screw portions 15a and 16a of the first boss member, and When screwed in, the screw connection is released, and the connecting portions 12b and 13b of the screw member are loosely fitted to the screw portions 15a and 16a of the first boss member, and the screw portions 12c and 13c of the screw member are the first. The boss members are loosely fitted into the recesses 15b and 16b.
As a result, both the connecting portions 12b and 13b and the screw portions 12c and 13c, which are the shaft portions of the screw members 12 and 13, are prevented from dropping into the through holes of the first printed wiring board 11 and the first boss members 15 and 16. It is loosely fitted in the applied state.
Here, if the connection parts 12b and 13b are loosely fitted to the screw parts 15a and 16a in a state of being prevented from falling off, the connection parts 12b and 13b do not necessarily have a cylindrical shape.

一方、本体プリント回路板2の側において、第2のボス部材22は、ねじ部22a,23aを有する孔を有する。第2のボス部材22の高さはh3である。
ねじ部材のねじ部12c,13cは、このねじ部22a,23aとねじ結合する。従って、ねじ部22a,23aの谷径は、ねじ部材のねじ部12c,13cの外径d3よりも僅かに大きい。
図示の第2のボス部材22は、貫通孔を有する筒状体であり、この筒状体は、その貫通孔の全長にわたってねじ部22a,23aを有する。しかし、貫通孔の一部がねじ部であってもよい。例えば、ねじ部材12,13が挿入される側の内径を、ねじ部22a,23aの外径よりも大きくし、ねじ部材12,13が自由に挿通されるようにすればよい。
第2のボス部材22は、また、有底の筒状体でもよい。この筒状体は、その孔の全長にわたってねじ部を有する。あるいは、筒状体の孔の一部にねじ部を有し、例えば、ねじ部材12,13が挿入される側の内径を、ねじ部22a,23aの外径よりも大きくすればよい。
On the other hand, on the main body printed circuit board 2 side, the second boss member 22 has a hole having screw portions 22a and 23a. The height of the second boss member 22 is h3.
The screw portions 12c and 13c of the screw member are screw-coupled with the screw portions 22a and 23a. Accordingly, the root diameters of the screw portions 22a and 23a are slightly larger than the outer diameter d3 of the screw portions 12c and 13c of the screw member.
The illustrated second boss member 22 is a cylindrical body having a through hole, and this cylindrical body has screw portions 22a and 23a over the entire length of the through hole. However, a part of the through hole may be a screw part. For example, the inner diameter on the side where the screw members 12 and 13 are inserted may be made larger than the outer diameter of the screw portions 22a and 23a so that the screw members 12 and 13 can be freely inserted.
The second boss member 22 may also be a bottomed cylindrical body. This cylindrical body has a threaded portion over the entire length of the hole. Or it has a thread part in a part of hole of a cylindrical body, and what is necessary is just to make the internal diameter by the side where screw members 12 and 13 are inserted larger than the external diameter of thread parts 22a and 23a, for example.

図2(b)に示されるように、第1のプリント配線板11の取付け時において、ねじ部材の軸部におけるねじ部12c,13cが、第1のボス部材15,16を介して第2のボス部材のねじ部22a,23aにねじ結合される。
図示の例では、第1のボス部材の凹部15b,16bの深さh2が、ねじ部材のねじ部12c,13cの長さB以上であるから、第1のプリント配線板11の取付け前において、ねじ部材のねじ部12c,13cが第1のボス部材の凹部15b,16bに収容された状態で遊嵌される。
その結果、第1のプリント配線板11を第2のプリント配線板21に取付ける際に、第1のボス部材の下端面15c,16cを第2のボス部材の上端面22b,23bに重ね合わせた後に、ねじ部材のねじ部12c,13cを1個ずつ、第2のボス部材のねじ部22a,23aに、ねじ込むことができる。
As shown in FIG. 2B, when the first printed wiring board 11 is attached, the screw portions 12c and 13c in the shaft portion of the screw member are connected to the second boss members 15 and 16 through the second boss members 15 and 16, respectively. Screwed to the screw portions 22a and 23a of the boss member.
In the illustrated example, since the depth h2 of the recesses 15b, 16b of the first boss member is equal to or longer than the length B of the screw portions 12c, 13c of the screw member, before the first printed wiring board 11 is attached, The screw parts 12c and 13c of the screw member are loosely fitted in a state of being accommodated in the recesses 15b and 16b of the first boss member.
As a result, when the first printed wiring board 11 is attached to the second printed wiring board 21, the lower end surfaces 15c and 16c of the first boss member are overlapped with the upper end surfaces 22b and 23b of the second boss member. Later, the screw parts 12c and 13c of the screw member can be screwed into the screw parts 22a and 23a of the second boss member one by one.

仮に、第1のボス部材の下端面15c,16cが第2のボス部材の上端面22b,23bに当接しない状態で、ねじ部12c,13cを、ねじ部22a,23aに結合させるとする。そうすると、プリント配線板11を第2のプリント配線板21に対して平行に保てなかったり、ねじ部12c,13cの軸心とねじ部22a,23cの軸心とがずれた状態でねじ結合されようとしたりする等の問題が生じる。   Assume that the screw portions 12c and 13c are coupled to the screw portions 22a and 23a in a state where the lower end surfaces 15c and 16c of the first boss member do not contact the upper end surfaces 22b and 23b of the second boss member. Then, the printed wiring board 11 cannot be kept parallel to the second printed wiring board 21 or is screw-coupled in a state where the axis of the screw parts 12c and 13c and the axis of the screw parts 22a and 23c are shifted. Problems such as trying to do so.

図2(a)において、ねじ部材のねじ先部12d,13dは「とがり先」である。そのため、第1のボス部材の下端面15c,16cを第2のボス部材の上端面22b,23bに重ね合わせたときに、ねじ部12c,13cの軸心とねじ部22a,23cの軸心とが多少ずれた状態であっても、ねじ部材のねじ部12c,13cが第2のボス部材のねじ部22a,23aに案内されやすい。
また、ねじ部材12,13のねじ部12c,13cとねじ先部12d,13dとを合わせた軸心方向の長さ(B+C)を、第1のボス部材の凹部15c,16cの軸心方向の深さh2以下にすれば、ねじ先部12d,13dも、第1のボス部材の凹部15c,16cに収容可能となる。
その結果、第1のプリント配線板11を、その底面を下にしてテーブル等に載置したときに、ねじ先部12d,13dがテーブル等を傷付けにくくなる。
In FIG. 2A, the screw tip portions 12d and 13d of the screw member are “pointing tips”. Therefore, when the lower end surfaces 15c and 16c of the first boss member are overlapped with the upper end surfaces 22b and 23b of the second boss member, the shaft centers of the screw portions 12c and 13c and the shaft centers of the screw portions 22a and 23c Even if they are slightly shifted, the screw portions 12c and 13c of the screw member are easily guided to the screw portions 22a and 23a of the second boss member.
Further, the axial length (B + C) of the screw portions 12c and 13c and the screw tip portions 12d and 13d of the screw members 12 and 13 is set in the axial direction of the concave portions 15c and 16c of the first boss member. If the depth is less than h2, the screw tip portions 12d and 13d can also be accommodated in the recesses 15c and 16c of the first boss member.
As a result, when the first printed wiring board 11 is placed on a table or the like with the bottom face down, the screw tip portions 12d and 13d are less likely to damage the table or the like.

ねじ部材の頭部12a,13aの座面が第1のプリント配線板11の上面に当接するまで、ユーザが、頭部12a,13aを回すことにより、第1のプリント配線板11と第2のプリント配線板21とが、第1のボス部材15,16、第2のボス部材22,23を間に挟んで、所定の間隔をあけて水平に結合され、図2(b)に示したねじ結合状態となる。
図示の例では、ねじ部材の連結部12b,13bの長さAが、第1のプリント配線板11の板厚と第1のボス部材15,16の長さの和h1よりも長いため、ねじ部材のねじ部12c,13cの全てが、第2のボス部材のねじ部22a,23aにねじ結合される。
The user turns the heads 12a and 13a until the seating surfaces of the heads 12a and 13a of the screw members come into contact with the upper surface of the first printed wiring board 11, whereby the first printed wiring board 11 and the second printed wiring board 11 The printed wiring board 21 is horizontally coupled with a predetermined interval between the first boss members 15 and 16 and the second boss members 22 and 23, and the screw shown in FIG. It becomes a combined state.
In the illustrated example, since the length A of the connecting portions 12b and 13b of the screw member is longer than the sum h1 of the plate thickness of the first printed wiring board 11 and the length of the first boss members 15 and 16, the screw All of the screw portions 12c and 13c of the member are screwed to the screw portions 22a and 23a of the second boss member.

ここで、ねじ部材の軸部の長さ、すなわち、連結部12b,13b、ねじ部12c,13c、ねじ先部12d,13dの長さの和(A+B+C)は、第1のプリント配線板11の厚みと第1のボス部材15,16の高さとの和h1と第2のボス部材22,23の高さh2との和(h1+h3)よりも短い。
図2に示される第1のボス部材15,16と第2のボス部材22,23とは、外形状が同一である。そのため、第2のボス部材22,23と同形状の筒状体におけるねじ部22a,23aに、ドリルで穴をあけて凹部15b,16bを形成することにより、第1のボス部材15,16を製造することができる。
Here, the length of the shaft portion of the screw member, that is, the sum (A + B + C) of the lengths of the connecting portions 12b and 13b, the screw portions 12c and 13c, and the screw tip portions 12d and 13d, is obtained from the first printed wiring board 11. It is shorter than the sum (h1 + h3) of the sum h1 of the thickness and the height of the first boss members 15 and 16 and the height h2 of the second boss members 22 and 23.
The first boss members 15 and 16 and the second boss members 22 and 23 shown in FIG. 2 have the same outer shape. Therefore, the first boss members 15 and 16 are formed by drilling holes in the threaded portions 22a and 23a in the cylindrical body having the same shape as the second boss members 22 and 23 to form the recesses 15b and 16b. Can be manufactured.

図3は、図1に示されたプリント配線板11を第2のプリント配線板21に取付ける方法の一例を示す説明図である。
図3(a)に示されるように、第1のプリント配線板11を第2のプリント配線板21の上面に対して位置決めする。
ユーザは、親指と人差し指にて2個のねじ部材の頭部12a,13aを摘み、指で頭部12a,13aを互いに押し付けることにより、第1のプリント配線板11を安定した状態で持つことができる。
FIG. 3 is an explanatory diagram showing an example of a method for attaching the printed wiring board 11 shown in FIG. 1 to the second printed wiring board 21.
As shown in FIG. 3A, the first printed wiring board 11 is positioned with respect to the upper surface of the second printed wiring board 21.
The user can hold the first printed wiring board 11 in a stable state by picking the heads 12a and 13a of the two screw members with the thumb and forefinger and pressing the heads 12a and 13a together with the fingers. it can.

従って、ユーザは、第1のプリント配線板11や実装された電子部品に触ることをなるべく避けることができる。その結果、電子部品が静電気により破壊されるおそれを少なくすることができる。
さらに、図2に示した、ボス部材設置用導電パターン11b,11c、21a,21bを、第1のプリント配線板11,第2のプリント配線板21の配線パターンから切り離し、孤立パターンとすることにより、ボス部材15,16、22,23が、電子部品と電気的に接続されないようにしておくとよい。
Therefore, the user can avoid touching the first printed wiring board 11 and the mounted electronic component as much as possible. As a result, it is possible to reduce the possibility that the electronic component is destroyed by static electricity.
Further, by separating the conductive patterns 11b, 11c, 21a, and 21b for installing the boss member shown in FIG. 2 from the wiring patterns of the first printed wiring board 11 and the second printed wiring board 21, an isolated pattern is obtained. It is preferable that the boss members 15, 16, 22, and 23 are not electrically connected to the electronic component.

第1のプリント配線板11を位置決めする際に、ユーザは、第1のコネクタ17が見えない。しかし、ねじ部材12,13を第2のボス部材22,23に位置合わせすれば、第1のコネクタ17の位置を第2のコネクタ24の位置に合わせることができる。
また、先に、図1(d)に示したように、第2のプリント配線板21の上面に印刷された面状マーク21c、及び又は、線状マーク21dを、第1のプリント配線板11の位置決めの目安とすることもできる。
When positioning the first printed wiring board 11, the user cannot see the first connector 17. However, if the screw members 12 and 13 are aligned with the second boss members 22 and 23, the position of the first connector 17 can be aligned with the position of the second connector 24.
In addition, as shown in FIG. 1D, the first printed wiring board 11 is replaced with the planar mark 21c and / or the linear mark 21d printed on the upper surface of the second printed wiring board 21. It can also be used as a guide for positioning.

次に、第1のコネクタ17を第2のコネクタ24に対して正確に当接させ、押し込むことにより両者を結合させる。第1のコネクタ17と第2のコネクタ24とは、嵌合構造であるため、第1のプリント配線板11は、第2のプリント配線板21に対し、水平面上の位置決めがほぼ正確になされるから、第1のボス部材15,16と第2のボス部材22,23とは、ほぼ位置ずれしない。   Next, the first connector 17 is accurately brought into contact with the second connector 24, and both are coupled by being pushed in. Since the first connector 17 and the second connector 24 have a fitting structure, the first printed wiring board 11 is positioned on the horizontal plane almost accurately with respect to the second printed wiring board 21. Therefore, the first boss members 15 and 16 and the second boss members 22 and 23 are not substantially displaced.

2個の第1のボス部材15,16は、水平面内のこれらの中心点を結ぶ線上に第1のコネクタ17が配置されている。従って、第1のコネクタ17の位置を第2のコネクタ24の位置に合わせやすく、かつ、2個のねじ部材12,13の締結力が、第1のコネクタ17と第2のコネクタ24との結合を確実にするので、第1のコネクタ17と第2のコネクタ24とによる電気的接続が安定する。   The two first boss members 15 and 16 have a first connector 17 arranged on a line connecting these center points in a horizontal plane. Accordingly, the position of the first connector 17 can be easily adjusted to the position of the second connector 24, and the fastening force of the two screw members 12 and 13 can be coupled to the first connector 17 and the second connector 24. Therefore, the electrical connection between the first connector 17 and the second connector 24 is stabilized.

図3(b)に示されるように、ユーザは、第1のボス部材15,16と第2のボス部材22,23とを正確に当接させ、ねじ部材12,13の軸心を傾斜状態から垂直に立て、ねじ部材のねじ部12c,13cを第2のボス部材のねじ部22a,23aに係合させる。ユーザは、頭部12a,13aを回すことにより、ねじ部材のねじ部12c,13cを第2のボス部材のねじ部22a,23aに締結する。その結果、第2のプリント配線板21は、第1のプリント配線板11に堅固に固定される。   As shown in FIG. 3 (b), the user makes the first boss members 15 and 16 and the second boss members 22 and 23 contact each other accurately, and the axial centers of the screw members 12 and 13 are inclined. The screw members 12c and 13c of the screw member are engaged with the screw portions 22a and 23a of the second boss member. The user fastens the screw portions 12c and 13c of the screw member to the screw portions 22a and 23a of the second boss member by turning the head portions 12a and 13a. As a result, the second printed wiring board 21 is firmly fixed to the first printed wiring board 11.

なお、上述した説明において、ねじ部材、第1のボス部材、第2のボス部材を各1個としてもよい。この場合、拡張用プリント回路板1における第1のプリント配線板11は、コネクタ(第1のコネクタ17、第2のコネクタ24)と、他の1箇所(第1のボス部材、第2のボス部材)とにおいて、本体プリント回路板2における第2のプリント配線板21に対し、所定間隔を維持して平行に取付けられる。   In the above description, the screw member, the first boss member, and the second boss member may each be one. In this case, the first printed wiring board 11 in the extended printed circuit board 1 includes a connector (first connector 17 and second connector 24) and one other place (first boss member and second boss). Member) and the second printed wiring board 21 of the main body printed circuit board 2 are attached in parallel at a predetermined interval.

図4は、本願発明を適用する電子鍵盤楽器3の外観図である。図4(a)はその平面図、図4(b)はその底面図、図4(c)は蓋4を外した状態の収容部3bを簡略化して示す部分拡大図である。図中、図1と同じ部分には同じ符号を付している。
図4(a)において、3cは操作パネル、3d,3eは左右のスピーカグリルである。31は鍵盤部、32は複数の設定操作子、33は液晶表示パネルである。
拡張プリント回路板1を本体プリント回路板2に取付ける際には、電子鍵盤楽器3を裏返し、電子鍵盤楽器の底板3aを上にして、蓋4を取外して行う。収容部3bは、底板3aにおいて、液晶表示パネル33の下方にある。
FIG. 4 is an external view of the electronic keyboard instrument 3 to which the present invention is applied. 4A is a plan view thereof, FIG. 4B is a bottom view thereof, and FIG. 4C is a partially enlarged view showing the accommodating portion 3b in a state where the lid 4 is removed. In the figure, the same parts as those in FIG.
In FIG. 4A, 3c is an operation panel, and 3d and 3e are left and right speaker grilles. Reference numeral 31 denotes a keyboard section, 32 denotes a plurality of setting operators, and 33 denotes a liquid crystal display panel.
When the extended printed circuit board 1 is attached to the main body printed circuit board 2, the electronic keyboard instrument 3 is turned over, the bottom board 3a of the electronic keyboard instrument is turned up, and the lid 4 is removed. The accommodating portion 3b is below the liquid crystal display panel 33 in the bottom plate 3a.

図4(b)において、蓋4は、収容部3bの開口部よりも僅かに大きく、ねじ挿入孔4aがある。蓋4の取付状態においては、蓋4が収容部3bの開口部を塞ぐ。挿入孔4aから、ねじ孔3fに、ねじ部材(図示しない)がねじ込まれることにより、蓋4が底板3aに取付固定されている。
図4(c)に示されるように、収容部3bには、2枚の拡張プリント回路板1が収容可能である。この図では、左側にのみ拡張プリント回路板1を収容した状態を図示している。拡張プリント回路板1が取付けられていない右側には、第2のボス部材22,23、第2のコネクタ24等が見える。
In FIG.4 (b), the cover 4 is slightly larger than the opening part of the accommodating part 3b, and has the screw insertion hole 4a. In the attached state of the lid 4, the lid 4 closes the opening of the accommodating portion 3 b. A screw member (not shown) is screwed into the screw hole 3f from the insertion hole 4a, whereby the lid 4 is attached and fixed to the bottom plate 3a.
As shown in FIG. 4 (c), two expansion printed circuit boards 1 can be accommodated in the accommodating portion 3b. This figure shows a state in which the extended printed circuit board 1 is accommodated only on the left side. On the right side where the extended printed circuit board 1 is not attached, the second boss members 22, 23, the second connector 24, and the like are visible.

上述した説明では、電子鍵盤楽器3の本体プリント回路板2に、拡張プリント回路板1を取付固定する取付構造を説明した。しかし、本体プリント回路板2は、電子鍵盤楽器3のものに限られないし、拡張プリント回路板1は本体の機能拡張をするものに限られない。本願発明は、第1のプリント回路板を、第2のプリント回路板に対して所定間隔を維持して平行状態で結合する電子機器に適用することができる。   In the above description, the mounting structure for mounting and fixing the extended printed circuit board 1 to the main body printed circuit board 2 of the electronic keyboard instrument 3 has been described. However, the main body printed circuit board 2 is not limited to the electronic keyboard instrument 3, and the extended printed circuit board 1 is not limited to the one that expands the functions of the main body. The present invention can be applied to an electronic device in which the first printed circuit board is coupled to the second printed circuit board in a parallel state while maintaining a predetermined distance.

1…拡張プリント回路板(第1のプリント回路板)、2…本体プリント回路板(第2のプリント回路板)、3…電子鍵盤楽器、3a…底板、3b…収容部、3c…操作パネル、3d,3e…スピーカグリル、3f…ねじ孔、4…蓋、4a…挿入孔、
11…第1のプリント配線板、11a…一端辺、11b,11c…ボス部材設置用導電パターン、11d,11e…貫通孔、
12,13…ねじ部材、12a,13a…頭部、12b,13b…連結部、12c,13c…ねじ部、12d,13d…ねじ先部、14…電子回路部品、
15,16…第1のボス部材、15a,16a…ねじ部(貫通孔)、15b,16b…凹部(貫通孔)、15c,16c…下端面、
17…第1のコネクタ、17a…ソケット部、17b…開口部、17c,17d…端子片、
21…第2のプリント配線板、21a,21b…ボス部材設置用導電パターン、21c…面状マーク、21d…線状マーク、
22,23…第2のボス部材、22a,23a…ねじ部(ねじが形成された孔)、22b,23b…上端面、
24…第2のコネクタ、24a…ハウジング、24b…プラグ部、24c,24d…端子片、25…電子回路部品、
31…鍵盤部、32…設定操作子、33…液晶表示パネル
DESCRIPTION OF SYMBOLS 1 ... Expansion printed circuit board (1st printed circuit board), 2 ... Main body printed circuit board (2nd printed circuit board), 3 ... Electronic keyboard instrument, 3a ... Bottom plate, 3b ... Housing, 3c ... Operation panel, 3d, 3e ... speaker grille, 3f ... screw hole, 4 ... lid, 4a ... insertion hole,
DESCRIPTION OF SYMBOLS 11 ... 1st printed wiring board, 11a ... One end side, 11b, 11c ... Conductive pattern for boss member installation, 11d, 11e ... Through-hole,
12, 13 ... Screw member, 12a, 13a ... Head, 12b, 13b ... Connection part, 12c, 13c ... Screw part, 12d, 13d ... Screw tip part, 14 ... Electronic circuit component,
15, 16 ... first boss member, 15a, 16a ... threaded portion (through hole), 15b, 16b ... recessed portion (through hole), 15c, 16c ... lower end surface,
17 ... 1st connector, 17a ... Socket part, 17b ... Opening part, 17c, 17d ... Terminal piece,
21 ... 2nd printed wiring board, 21a, 21b ... Boss member installation conductive pattern, 21c ... Planar mark, 21d ... Linear mark,
22, 23 ... second boss member, 22a, 23a ... threaded portion (hole in which a screw is formed), 22b, 23b ... upper end surface,
24 ... second connector, 24a ... housing, 24b ... plug portion, 24c, 24d ... terminal piece, 25 ... electronic circuit component,
31 ... Keyboard part, 32 ... Setting operator, 33 ... Liquid crystal display panel

Claims (3)

第1のプリント回路板における第1のプリント配線板が、第2のプリント回路板における第2のプリント配線板に対し、所定間隔を維持して平行に取付けられるプリント回路板取付構造において、
第1のボス部材及び第1のコネクタが、前記第1のプリント配線板の、前記第2のプリント配線板に対向する面に立設され、前記第1のボス部材は貫通孔を有し、該貫通孔に、ねじ部材の軸部が挿通されており、
第2のボス部材及び第2のコネクタが、前記第2のプリント配線板の、前記第1のプリント配線板に対向する面に立設され、前記第2のボス部材は、ねじが形成された孔を有しており、
前記第1のプリント配線板の取付け前において、前記ねじ部材の軸部が前記第1のボス部材の貫通孔に脱落防止された状態で遊嵌され、
前記第1のプリント配線板の取付け時において、前記第1のコネクタが前記第2のコネクタと電気的に接続され、前記ねじ部材の軸部が前記第1のボス部材を介して前記第2のボス部材の孔にねじ結合される、
ことを特徴とするプリント回路板取付構造。
In the printed circuit board mounting structure in which the first printed wiring board in the first printed circuit board is mounted in parallel to the second printed wiring board in the second printed circuit board while maintaining a predetermined interval.
The first boss member and the first connector are erected on a surface of the first printed wiring board that faces the second printed wiring board, and the first boss member has a through hole, The shaft portion of the screw member is inserted through the through hole,
The second boss member and the second connector are erected on the surface of the second printed wiring board facing the first printed wiring board, and the second boss member is formed with a screw. Has holes,
Before the mounting of the first printed wiring board, the shaft portion of the screw member is loosely fitted in the through hole of the first boss member in a state of being prevented from falling off,
When the first printed wiring board is attached, the first connector is electrically connected to the second connector, and a shaft portion of the screw member is connected to the second boss member via the first boss member. Screwed into the hole of the boss member,
A printed circuit board mounting structure characterized by that.
前記ねじ部材の軸部は、首側に連結部を、ねじ先側にねじ部を有するものであり、
前記第1のボス部材の貫通孔は、前記第1のプリント配線板の側に、前記ねじ部材のねじ部と結合するとともに、前記ねじ部材の連結部を遊嵌するねじ部を有し、前記第2のプリント配線板に対向する側に、前記ねじ部材の連結部及びねじ部を共に遊嵌する凹部を有するものであり、
前記第1のプリント配線板の取付け前において、前記第1のボス部材のねじ部に前記ねじ部材のねじ部がねじ込まれた後に、前記第1のボス部材のねじ部に前記ねじ部材の連結部が遊嵌されることにより、前記ねじ部材の軸部が前記第1のボス部材の貫通孔に脱落防止された状態で遊嵌されるようにした、
ことを特徴とする請求項1に記載のプリント回路板取付構造。
The shaft portion of the screw member has a connecting portion on the neck side and a screw portion on the screw tip side,
The through hole of the first boss member has a screw part that is coupled to the screw part of the screw member on the first printed wiring board side and loosely fits the connecting part of the screw member, On the side facing the second printed wiring board, there is a recess that loosely fits together the connecting portion and the screw portion of the screw member,
Before the first printed wiring board is attached, after the screw portion of the screw member is screwed into the screw portion of the first boss member, the connecting portion of the screw member to the screw portion of the first boss member Is loosely fitted so that the shaft portion of the screw member is loosely fitted into the through hole of the first boss member in a state of being prevented from falling off.
The printed circuit board mounting structure according to claim 1.
前記第1のボス部材の凹部の深さは、前記ねじ部材のねじ部の長さ以上であることにより、前記第1のプリント配線板の取付け前において、前記ねじ部材のねじ部が前記第1のボス部材の凹部に収容可能な状態で遊嵌されるようにした、
ことを特徴とする請求項2に記載のプリント回路板取付構造。
The depth of the concave portion of the first boss member is equal to or greater than the length of the screw portion of the screw member, so that the screw portion of the screw member is the first screw before the first printed wiring board is attached. It was designed to be loosely fitted in a state where it can be accommodated in the recess of the boss member.
The printed circuit board mounting structure according to claim 2, wherein:
JP2009292545A 2009-12-24 2009-12-24 Printed circuit board mounting structure Withdrawn JP2011134868A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013143312A (en) * 2012-01-12 2013-07-22 Daiichi Seiko Co Ltd Wiring board coupling device
WO2018155702A1 (en) * 2017-02-27 2018-08-30 川崎重工業株式会社 Electronic device and robot controller

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013143312A (en) * 2012-01-12 2013-07-22 Daiichi Seiko Co Ltd Wiring board coupling device
WO2018155702A1 (en) * 2017-02-27 2018-08-30 川崎重工業株式会社 Electronic device and robot controller
JP2018142587A (en) * 2017-02-27 2018-09-13 川崎重工業株式会社 Electronic apparatus and robot controller
CN110326372A (en) * 2017-02-27 2019-10-11 川崎重工业株式会社 Electronic equipment and robot controller
EP3589088A4 (en) * 2017-02-27 2020-12-30 Kawasaki Jukogyo Kabushiki Kaisha Electronic device and robot controller
US10965059B2 (en) 2017-02-27 2021-03-30 Kawasaki Jukogyo Kabushiki Kaisha Electronic device and robot controller
JP7051297B2 (en) 2017-02-27 2022-04-11 川崎重工業株式会社 Electronic devices and robot controllers
CN110326372B (en) * 2017-02-27 2022-12-30 川崎重工业株式会社 Electronic device and robot controller

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