JP2853530B2 - Insulation sheet holding device - Google Patents
Insulation sheet holding deviceInfo
- Publication number
- JP2853530B2 JP2853530B2 JP23618793A JP23618793A JP2853530B2 JP 2853530 B2 JP2853530 B2 JP 2853530B2 JP 23618793 A JP23618793 A JP 23618793A JP 23618793 A JP23618793 A JP 23618793A JP 2853530 B2 JP2853530 B2 JP 2853530B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating sheet
- cut
- hole
- raised
- chassis
- 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 - Fee Related
Links
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車載用音響装置などに
使用する絶縁シート保持装置、特にシャーシとプリント
基板との電気的な短絡を防止するためにシャーシに保持
される絶縁シートの保持装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating sheet holding device for use in a vehicle-mounted acoustic device, and more particularly, to an insulating sheet holding device held by a chassis to prevent an electrical short circuit between the chassis and a printed circuit board. About.
【０００２】[0002]
【従来の技術】図１はラジオ受信機とカセットデッキと
を一体化した車載用音響装置を示している。図１におい
て、１は音響機器の本体であり、この本体１は、金属板
からなる箱形のシャーシ２と、このシャーシ２の前面部
に固定された前面板（エスカッション）３から構成され
ている。４は前面板３に形成されたカセット挿入口であ
り、このカセット挿入口４には開閉蓋５が回動可能に支
持されている。６，７，８はカセット挿入口４の近傍に
配置されたカセットデッキ制御用の操作釦、９は電源ス
イッチのオン、オフと、音量制御を行うためのつまみ、
１０，１１は音質調整用の操作釦、１２，１３，１４は
ラジオ受信機の所望の放送局をメモリしたり呼び出した
りするためのプリセット釦、１５は受信周波数などを表
示する表示部である。2. Description of the Related Art FIG. 1 shows an on-vehicle acoustic device in which a radio receiver and a cassette deck are integrated. In FIG. 1, reference numeral 1 denotes a main body of an audio device. The main body 1 includes a box-shaped chassis 2 made of a metal plate, and a front plate (escussion) 3 fixed to a front portion of the chassis 2. . Reference numeral 4 denotes a cassette insertion opening formed in the front plate 3, and an opening / closing lid 5 is rotatably supported by the cassette insertion opening 4. Reference numerals 6, 7, and 8 denote operation buttons for controlling a cassette deck arranged near the cassette insertion slot 4, and knobs 9 for turning on / off a power switch and controlling volume.
Reference numerals 10 and 11 denote operation buttons for adjusting sound quality, reference numerals 12, 13 and 14 denote preset buttons for storing and recalling a desired broadcasting station of the radio receiver, and reference numeral 15 denotes a display section for displaying a reception frequency and the like.
【０００３】図６は上記シャーシ２を構成する底蓋とこ
の底蓋に保持される絶縁シート、プリント基板を示して
いる。図６において、１６は箱形のシャーシ２の底部を
構成する底蓋、１７は底蓋１６に形成された切起しであ
り、この切起し１７の先端部の両側には段部１８が形成
されている。１９は樹脂からなる絶縁シートであり、こ
の絶縁シート１９には、上記切起し１７が貫通する長方
形の孔２０が形成されている。絶縁シート１９は、図７
に示すように、絶縁シート１９の孔２０を底蓋１６の切
起し１７に挿入することにより、底蓋１６の面に重ねら
れ、絶縁シート１９の下面に取付けられた両面テープ２
１により、絶縁シート１９は底蓋１６に固定される。２
２はプリント基板であり、このプリント基板２２には半
導体部品などが半田付けにより取付けられ、ラジオ受信
機の電気回路、カセットデッキの制御回路などが構成さ
れる。２３はプリント基板２２に形成された長方形の孔
であり、この孔２３を切起し１７に挿入すると、プリン
ト基板２２は切起し１７の段部１８に係止されるもので
ある。FIG. 6 shows a bottom cover constituting the chassis 2, an insulating sheet and a printed board held by the bottom cover. 6, reference numeral 16 denotes a bottom cover constituting the bottom of the box-shaped chassis 2, and 17 denotes a cut-and-raised portion formed on the bottom cover 16. Steps 18 are provided on both sides of the tip of the cut-and-raised portion 17. Is formed. Reference numeral 19 denotes an insulating sheet made of a resin, and the insulating sheet 19 has a rectangular hole 20 through which the cut and raised portion 17 penetrates. The insulating sheet 19 is shown in FIG.
As shown in the figure, by inserting the hole 20 of the insulating sheet 19 into the cut-and-raised portion 17 of the bottom cover 16, the double-sided tape 2 is superimposed on the surface of the bottom cover 16 and attached to the lower surface of the insulating sheet 19.
1, the insulating sheet 19 is fixed to the bottom lid 16. 2
Reference numeral 2 denotes a printed board, on which semiconductor components and the like are attached by soldering, and an electric circuit of a radio receiver, a control circuit of a cassette deck, and the like are configured. Reference numeral 23 denotes a rectangular hole formed in the printed circuit board 22. When the hole 23 is cut and raised and inserted into the hole 17, the printed circuit board 22 is cut and raised and locked on the step 18 of the printed circuit board 17.
【０００４】上記従来例によれば、金属板からなるシャ
ーシ２の底蓋１６とプリント基板２２との間に絶縁シー
ト１９が介在するため、プリント基板２２と底蓋１６と
の間の電気的な短絡が防止できるものである。According to the above conventional example, since the insulating sheet 19 is interposed between the printed circuit board 22 and the bottom cover 16 of the chassis 2 made of a metal plate, the electrical connection between the printed circuit board 22 and the bottom cover 16 is made. A short circuit can be prevented.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来例では、絶縁シート１９をシャーシ２の底蓋１６に固
定するために、両面テープ２１を使用しなければなら
ず、絶縁シート１９の取付作業が煩雑であるとともに、
コストが高くなる問題があった。However, in the above-mentioned conventional example, in order to fix the insulating sheet 19 to the bottom cover 16 of the chassis 2, the double-sided tape 21 must be used, and the work of attaching the insulating sheet 19 is difficult. It ’s complicated,
There was a problem that the cost increased.
【０００６】本発明は、上記従来の問題を除去するもの
であり、両面テープ２１を使用することなく、絶縁シー
トをシャーシに固定することができる絶縁シート取付け
装置を提供するものである。The present invention has been made to solve the above-mentioned conventional problems, and has as its object to provide an insulating sheet attaching apparatus which can fix an insulating sheet to a chassis without using a double-sided tape 21.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記目的を達
成するために、金属板からなるシャーシに形成された複
数の切起しと、上記切起しが挿入される複数の孔が形成
された絶縁シートと、上記切起しに保持されるプリント
基板とを具備し、上記絶縁シートの孔の孔縁部に突片を
形成することを特徴とするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has a plurality of cut-and-raised portions formed in a metal plate chassis and a plurality of holes into which the cut-and-raised portions are inserted. And a printed board held by the cut-and-raised portion, wherein a protruding piece is formed at the edge of the hole of the insulating sheet.
【０００８】[0008]
【作用】本発明は上記のような構成であり、上記シャー
シの切起しに上記絶縁シートの孔を挿入した際の上記突
片の押圧力により上記絶縁シートが上記シャーシに保持
されるものである。According to the present invention, the insulating sheet is held by the chassis by the pressing force of the projecting piece when the hole of the insulating sheet is inserted into the cut and raised portion of the chassis. is there.
【０００９】[0009]
【実施例】以下に本発明の一実施例について図２〜図４
とともに説明する。なお、図２〜図４において図６，図
７と同一箇所には同一番号を付している。図２におい
て、１９は樹脂からなる絶縁シートであり、この絶縁シ
ート１９には長方形の孔２４が形成されている。図４は
本実施例の絶縁シート１９に形成する孔２４の形状を示
している。図４において、２５は長方形の孔２４の短辺
の孔縁部に形成された三角形状の突片である。孔２４の
長辺の長さ（Ｌ）は底蓋１６の切起し１７の長さ（Ｍ）
よりわずかに大きいが、上記突片２５の先端間の長さ
（Ｎ）は、底蓋１６の切起し１７の長さ（Ｍ）よりわず
かに短い。本実施例において、絶縁シート１９を底蓋１
６に配置する場合、絶縁シート１９の孔２４を底蓋１６
の切起し１７に挿入する。図３は絶縁シート１９の孔２
４を底蓋１６の切起し１７に挿入し、絶縁シート１９を
底蓋１６の上面に重ねた状態を示している。図３に示す
ように絶縁シート１９の孔縁に形成された三角形状の可
撓性の突片２５は曲がり、切起し１７に対する突片２５
の押圧力により絶縁シート１９が切起し１７に保持され
るものである。絶縁シート１９が底蓋１６に保持された
後に、プリント基板２２の孔２３を切起し１７に挿入す
る。プリント基板２２の孔２３の長辺は切起し１７の長
さより小さいため、プリント基板２２は切起し１７の段
部１８に係止される。FIG. 2 to FIG. 4 show an embodiment of the present invention.
It will be explained together. 2 to 4, the same parts as those in FIGS. 6 and 7 are denoted by the same reference numerals. In FIG. 2, reference numeral 19 denotes an insulating sheet made of resin, and the insulating sheet 19 has a rectangular hole 24 formed therein. FIG. 4 shows the shape of the hole 24 formed in the insulating sheet 19 of this embodiment. In FIG. 4, reference numeral 25 denotes a triangular protruding piece formed at the edge of the short side of the rectangular hole 24. The length (L) of the long side of the hole 24 is the length (M) of the cut-and-raised portion 17 of the bottom cover 16.
Although slightly larger, the length (N) between the tips of the protruding pieces 25 is slightly shorter than the length (M) of the cut-and-raised portion 17 of the bottom cover 16. In the present embodiment, the insulating sheet 19 is
6, the hole 24 of the insulating sheet 19 is
Into the cut-and-raised portion 17 of FIG. FIG. 3 shows the holes 2 in the insulating sheet 19.
4 is inserted into the cut-and-raised portion 17 of the bottom cover 16 and the insulating sheet 19 is placed on the upper surface of the bottom cover 16. As shown in FIG. 3, the triangular flexible protruding piece 25 formed on the edge of the hole of the insulating sheet 19 is bent, and the protruding piece 25 for the cut and raised 17 is formed.
The insulating sheet 19 is cut and raised by the pressing force and is held on the insulating sheet 17. After the insulating sheet 19 is held by the bottom lid 16, the hole 23 of the printed circuit board 22 is cut and raised and inserted into 17. Since the long side of the hole 23 of the printed board 22 is smaller than the length of the cutout 17, the printed board 22 is locked by the step 18 of the cutout 17.
【００１０】このように、上記実施例によれば、金属板
からなるシャーシ２とプリント基板２２との間に絶縁シ
ート１９が介在するため、プリント基板２２とシャーシ
２との電気的な短絡が防止される。また、上記実施例で
は、絶縁シート１９が孔２４の孔縁に形成された突片２
５によって底蓋１６に保持されるため、従来例のような
絶縁シート固定用の両面テープが不要になるものであ
る。As described above, according to the above embodiment, since the insulating sheet 19 is interposed between the chassis 2 made of a metal plate and the printed board 22, an electrical short circuit between the printed board 22 and the chassis 2 is prevented. Is done. Further, in the above embodiment, the protruding piece 2 in which the insulating sheet 19 is formed at the edge of the hole 24 is used.
5, the double-sided tape for fixing the insulating sheet as in the conventional example is unnecessary.
【００１１】なお、上記実施例では、絶縁シート１９の
長方形の孔２４の孔縁部の相対向する短辺に突片２５を
形成しているが、図５（Ａ）に示すように一方の短辺に
のみ突片２５を形成してもよいものである。また上記実
施例では三角形状の突片２５を形成しているが、突片２
５の形状は三角形に限らず図５（Ｂ），（Ｃ）に示すよ
うに長方形、台形などでもよいものである。In the above embodiment, the protruding pieces 25 are formed on opposing short sides of the edge of the rectangular hole 24 of the insulating sheet 19, but as shown in FIG. The protrusion 25 may be formed only on the short side. In the above embodiment, the triangular projection 25 is formed.
The shape of 5 is not limited to a triangle, but may be a rectangle, a trapezoid, or the like as shown in FIGS. 5B and 5C.
【００１２】[0012]
【発明の効果】本発明は、上記のような構成であり、絶
縁シートの孔をシャーシの切起しに挿入するだけで絶縁
シートをシャーシに保持できるために、絶縁シートの取
付け作業が容易になるとともに、両面テープが不要にな
るため、コストを低減できる利点を有するものである。According to the present invention, the insulating sheet can be held in the chassis simply by inserting the hole of the insulating sheet into the cut-and-raised portion of the chassis. In addition, the need for a double-sided tape is eliminated, which has the advantage of reducing costs.
【図１】本発明の一実施例における絶縁シート保持装置
の斜視図FIG. 1 is a perspective view of an insulating sheet holding device according to an embodiment of the present invention.
【図２】同実施例の分解斜視図FIG. 2 is an exploded perspective view of the embodiment.
【図３】同実施例の断面図FIG. 3 is a sectional view of the embodiment.
【図４】同実施例の絶縁シートの孔と切起しとの寸法関
係を示す図FIG. 4 is a view showing a dimensional relationship between holes and cut-and-raised portions of the insulating sheet of the embodiment.
【図５】（Ａ），（Ｂ），（Ｃ）は他の実施例の絶縁シ
ートの孔の形状を示す図FIGS. 5A, 5B, and 5C are diagrams showing shapes of holes in an insulating sheet according to another embodiment.
【図６】従来の絶縁シート保持装置の分解斜視図FIG. 6 is an exploded perspective view of a conventional insulating sheet holding device.
【図７】同従来例の断面図FIG. 7 is a sectional view of the conventional example.
２ シャーシ １６ 底蓋 １７ 切起し １８ 段部 １９ 絶縁シート ２２ プリント基板 ２４ 孔 ２５ 突片 2 Chassis 16 Bottom lid 17 Cut-and-raised 18 Step 19 Insulating sheet 22 Printed circuit board 24 Hole 25 Protrusion
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H05K 7/14 G11B 31/00 537 G11B 33/14──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) H05K 7/14 G11B 31/00 537 G11B 33/14
Claims (6)
と、上記切起しに保持されるプリント基板と、上記シャ
ーシと上記プリント基板との間に配設され、上記切起し
の外径よりも小さい内径を有し前記切起しに嵌合する固
定孔を設けた、弾性体からなる絶縁シートと、を具備す
る絶縁シート保持装置。1. A chassis made of a conductor having a cut-and-raised portion, a printed board held by the cut-and-raised portion, and disposed between the chassis and the printed board. An insulating sheet made of an elastic body, the insulating sheet having a small inner diameter and having a fixing hole fitted into the cut-and-raised portion.
間又は上記孔縁部と上記突片との間の長さが上記切起し
の外径よりも小さい上記固定孔を設けたことを特徴とす
る請求項１記載の絶縁シート保持装置。2. The fixing sheet according to claim 1, wherein the insulating sheet is provided with the fixing hole having a length between protrusions provided at a hole edge or between the hole edge and the protrusion is smaller than an outer diameter of the cut-and-raised portion. The insulating sheet holding device according to claim 1, wherein:
数の切起しと、上記切起しが挿入される複数の孔が形成
された絶縁シートと、上記切起しに保持されるプリント
基板とを具備し、上記絶縁シートの孔の孔縁部に突片を
形成し、上記シャーシの切起しを上記絶縁シートの孔に
挿入した際の上記突片の上記切起しへの押圧力により上
記絶縁シートを上記シャーシに保持することを特徴とす
る絶縁シート保持装置。3. A plurality of cut-and-raised portions formed in a chassis made of a metal plate, an insulating sheet having a plurality of holes into which the cut-and-raised portions are inserted, and a printed board held by the cut-and-raised portions A protruding piece is formed at the edge of the hole of the insulating sheet, and the pressing force of the protruding piece against the cutting and raising when the cut and raised of the chassis is inserted into the hole of the insulating sheet. An insulating sheet holding device for holding the insulating sheet on the chassis.
絶縁シートの孔の孔縁部の相対向する短辺の少なくとも
一方に突片を形成し、上記絶縁シートの孔の長辺の長さ
を上記切起しの長さより大きく、かつ上記絶縁シートの
突片間の長さ又は突片と孔縁との長さを上記切起しの長
さより小さくしてなる請求項３記載の絶縁シート保持装
置。4. A rectangular hole is formed in the insulating sheet, a protruding piece is formed on at least one of opposing short sides of a hole edge of the hole of the insulating sheet, and a long side of the hole of the insulating sheet is formed. 4. The insulation according to claim 3, wherein the length is greater than the length of the cut and raised, and the length between the projecting pieces of the insulating sheet or the length between the projecting piece and the edge of the hole is smaller than the length of the cut and raised. Sheet holding device.
形状を三角形状にしてなる請求項３又は４記載の絶縁シ
ート保持装置。5. The insulating sheet holding device according to claim 3, wherein the shape of the projecting piece formed on the edge of the hole of the insulating sheet is triangular.
置を有する車載用電子機器。6. An in-vehicle electronic device having the insulating sheet holding device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23618793A JP2853530B2 (en) | 1993-09-22 | 1993-09-22 | Insulation sheet holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23618793A JP2853530B2 (en) | 1993-09-22 | 1993-09-22 | Insulation sheet holding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0794879A JPH0794879A (en) | 1995-04-07 |
| JP2853530B2 true JP2853530B2 (en) | 1999-02-03 |
Family
ID=16997070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23618793A Expired - Fee Related JP2853530B2 (en) | 1993-09-22 | 1993-09-22 | Insulation sheet holding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2853530B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010050420A (en) * | 2008-08-25 | 2010-03-04 | Mitsumi Electric Co Ltd | Electronic apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5039483B2 (en) * | 2007-09-10 | 2012-10-03 | 京セラドキュメントソリューションズ株式会社 | Printed circuit board protection structure and image forming apparatus having the same |
| JP6489438B2 (en) * | 2015-06-05 | 2019-03-27 | 株式会社リコー | Driving device and image forming apparatus |
-
1993
- 1993-09-22 JP JP23618793A patent/JP2853530B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010050420A (en) * | 2008-08-25 | 2010-03-04 | Mitsumi Electric Co Ltd | Electronic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0794879A (en) | 1995-04-07 |
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|---|---|---|---|
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