JP3798624B2 - Mechanism support mechanism - Google Patents

Mechanism support mechanism Download PDF

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Publication number
JP3798624B2
JP3798624B2 JP2000384636A JP2000384636A JP3798624B2 JP 3798624 B2 JP3798624 B2 JP 3798624B2 JP 2000384636 A JP2000384636 A JP 2000384636A JP 2000384636 A JP2000384636 A JP 2000384636A JP 3798624 B2 JP3798624 B2 JP 3798624B2
Authority
JP
Japan
Prior art keywords
rising
tongue piece
bottom plate
chassis
hole
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
JP2000384636A
Other languages
Japanese (ja)
Other versions
JP2002185164A (en
Inventor
健弘 大熊
和弘 正森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kenwood KK
Original Assignee
Kenwood KK
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 by Kenwood KK filed Critical Kenwood KK
Priority to JP2000384636A priority Critical patent/JP3798624B2/en
Publication of JP2002185164A publication Critical patent/JP2002185164A/en
Application granted granted Critical
Publication of JP3798624B2 publication Critical patent/JP3798624B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
この発明は車載用オーディオ機器の機構部等支持機構に係わり、特に、シャーシ底板から切り起こした立ち上がり舌片により機構部を支持する機構部支持機構に関する。
【0002】
【従来の技術】
従来、車載用オーディオ機器等において、機構部をシャーシ底板に固定する場合、機構部とシャーシ底板との間にプリント基板等を配置できるように機構部をシャーシ底板より約10mmから15mm程度浮かして固定することが行われている。
【0003】
そのような機構部支持機構の例を図3および図4により説明する。図3に示すように、シャーシ底板8には舌片12、12…が板金加工で形成される。この舌片12、12…に機構部シャーシ6が締着される。
【0004】
図4に舌片12の形状を詳しく示す。図4に示すように、シャーシ底板8から垂直に立ち上がった立ち上がり部9の上部が水平に曲げられ折曲げ部10が形成された舌片12が切り起こしにより形成される。折曲げ部10にはねじ穴11が設けられており、このねじ穴11に機構部シャーシ6の穴6aを挿通したねじ7をねじ込むことにより舌片12に機構部シャーシ6が締着される。
【0005】
【発明が解決しようとする課題】
上記した従来の車載用オーディオ機器の機構部支持機構は、機構部シャーシ6が舌片12の立ち上がり部9からずれた位置に中心軸のあるねじ穴に締着される。この機構部シャーシ6の支持位置には機構部の重量や振動の加速度による荷重がかかるが、その作用点は図5に示すように立ち上がり部9から外れているためにPの荷重に対してMのマゲモーメントが発生する。
【0006】
このため、振動試験や落下試験等で荷重点であるねじ穴部に負荷がかかった場合にマゲモーメントによる立ち上がり部9の倒れが発生しやすかった。強度を高めるために図4に示すように曲がり部に補強ビード13が施されていたが曲げ角度の精度が悪くなる等の問題があった。
【0007】
この発明は上記した点に鑑みてなされたものであって、その目的とするところは、シャーシ底板から切り起こした立ち上がり舌片により機構部を支持する場合に立ち上がり舌片を精度よく形成することができ、立ち上がり舌片の変形が起きにくい電子機器の機構部支持機構を提供することにある。
【0008】
【課題を解決するための手段】
この発明の機構部支持機構は、シャーシ底板から切り起こした立ち上がり舌片に機構部を締着する機構部支持機構において、前記舌片の立ち上がり部から曲げた前記シャーシ底板と平行方向に延びる上部折曲げ部に前記立ち上がり部を越える平面部を設け、この平面部に中心軸が前記立ち上がり部の位置と一致する穴を設け、この穴により前記機構部を締着するものである。
【0009】
また、前記機構部支持機構において、前記穴を前記機構部を締着するねじと螺合するねじ穴とするものである。
【0010】
【発明の実施の形態】
この発明の実施例である車載用オーディオ機器の機構部支持機構を図面に基づいて説明する。図1はこの発明の実施例である車載用オーディオ機器の機構部支持機構を示す分解斜視図である。
【0011】
図1に示すように、シャーシ底板1には舌片5、5…(図1では1個のみ示しているが従来例と同様に4個形成される)が板金加工で形成される。この舌片5、5…に機構部シャーシ6が締着される。
【0012】
図1に示すように、シャーシ底板1から垂直に立ち上がった立ち上がり部2の上部が水平に曲げられ平面部3が形成された舌片5が切り起こしにより形成される。平面部5は立ち上がり部2を越えて形成されており、立ち上がり部2と中心軸が一致する位置にねじ穴4が設けられており、このねじ穴4に機構部シャーシ6の穴6aを挿通したねじ7をねじ込むことにより舌片5に機構部シャーシ6が締着される。
【0013】
上記機構部支持機構では機構部シャーシ6が舌片5の立ち上がり部2と中心軸が一致する位置のねじ穴に締着される。この機構部シャーシ6の支持位置には機構部の重量や振動の加速度による荷重がかかるが、その作用点は図2に示すように立ち上がり部2から外れていないためにPの荷重に対しての曲げモーメントが発生することはない。
【0014】
Pの荷重は立ち上がり部2に対して圧縮荷重として作用するが、圧縮荷重に対する座屈強度は同一荷重の曲げモーメントに対する強度より極端に大きいので舌片5の立ち上がり部2が変形することがなくなる。
【0015】
実施例は以上のように構成されているが発明はこれに限られず、例えば、シャーシ底板から切り起こした舌片で機構部を支持するものであれば車載用オーディオ機器に限らずにこの発明を適用できる。
【0016】
【発明の効果】
この発明の機構部支持機構によれば、シャーシ底板から切り起こされ機構部を支持する舌片に曲げモーメントがかからないので荷重保持強度を従来のものに比べて大幅に増大させることができる。
【図面の簡単な説明】
【図1】この発明の実施例である車載用オーディオ機器の機構部支持機構を示す分解斜視図である。
【図2】同機構部支持機構を示す部分側面図である。
【図3】従来の車載用オーディオ機器の機構部支持機構の例を示す分解斜視図である。
【図4】同機構部支持機構を示す部分分解斜視図である。
【図5】同機構部支持機構を示す部分側面図である。
【符号の説明】
1 シャーシ底板
2 立ち上がり部
3 平面部
4 ねじ穴
5 舌片
6 機構部シャーシ、6a 穴
7 ねじ
8 シャーシ底板
9 立ち上がり部
10 折曲げ部
11 ねじ穴
12 舌片
13 補強ビード
[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support mechanism such as a mechanism part of an on-vehicle audio device, and more particularly to a mechanism part support mechanism that supports a mechanism part by a rising tongue piece cut and raised from a chassis bottom plate.
[0002]
[Prior art]
Conventionally, when fixing a mechanism unit to a chassis bottom plate in an in-vehicle audio device or the like, the mechanism unit is floated and fixed by about 10 mm to 15 mm from the chassis bottom plate so that a printed circuit board or the like can be disposed between the mechanism unit and the chassis bottom plate. To be done.
[0003]
An example of such a mechanism support mechanism will be described with reference to FIGS. As shown in FIG. 3, tongue pieces 12, 12... Are formed on the chassis bottom plate 8 by sheet metal processing. The mechanism section chassis 6 is fastened to the tongue pieces 12, 12.
[0004]
FIG. 4 shows the shape of the tongue piece 12 in detail. As shown in FIG. 4, the upper part of the rising part 9 rising vertically from the chassis bottom plate 8 is bent horizontally to form a tongue piece 12 in which a bent part 10 is formed. A screw hole 11 is provided in the bent portion 10, and the mechanism portion chassis 6 is fastened to the tongue piece 12 by screwing a screw 7 inserted through the hole 6 a of the mechanism portion chassis 6 into the screw hole 11.
[0005]
[Problems to be solved by the invention]
The above-described mechanism support mechanism of the conventional in-vehicle audio device is fastened to a screw hole having a central axis at a position where the mechanism chassis 6 is displaced from the rising portion 9 of the tongue piece 12. A load due to the weight of the mechanism unit and acceleration of vibration is applied to the support position of the mechanism unit chassis 6, but the action point is off the rising portion 9 as shown in FIG. This produces a mage moment.
[0006]
For this reason, when the load is applied to the screw hole portion which is a load point in a vibration test or a drop test, the rising portion 9 is likely to fall down due to a mage moment. In order to increase the strength, the reinforcing bead 13 is applied to the bent portion as shown in FIG. 4, but there is a problem that the accuracy of the bending angle is deteriorated.
[0007]
The present invention has been made in view of the above points, and the object of the present invention is to form the rising tongue piece with high accuracy when the mechanism portion is supported by the rising tongue piece cut and raised from the chassis bottom plate. An object of the present invention is to provide a mechanism support mechanism for an electronic device that can be raised and is unlikely to be deformed.
[0008]
[Means for Solving the Problems]
The mechanism support mechanism according to the present invention is a mechanism support mechanism for fastening a mechanism to a rising tongue piece cut and raised from a chassis bottom plate, and an upper folding extending in a direction parallel to the chassis bottom plate bent from the rising portion of the tongue piece. A flat portion that extends beyond the rising portion is provided in the bent portion, and a hole having a central axis coinciding with the position of the rising portion is provided in the flat portion, and the mechanism portion is fastened by the hole.
[0009]
Further, in the mechanism portion support mechanism, the hole is a screw hole that is screwed with a screw that fastens the mechanism portion.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
A mechanism support mechanism for an in-vehicle audio apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a mechanism support mechanism of an in-vehicle audio apparatus according to an embodiment of the present invention.
[0011]
As shown in FIG. 1, tongue pieces 5, 5... (Only one is shown in FIG. 1 but four are formed as in the conventional example) are formed on the chassis bottom plate 1 by sheet metal processing. The mechanism portion chassis 6 is fastened to the tongue pieces 5, 5.
[0012]
As shown in FIG. 1, a tongue piece 5 is formed by cutting and raising an upper portion of a rising portion 2 that rises vertically from a chassis bottom plate 1 and is bent horizontally to form a flat portion 3. The flat portion 5 is formed beyond the rising portion 2, and a screw hole 4 is provided at a position where the rising portion 2 and the central axis coincide with each other, and the hole 6 a of the mechanism unit chassis 6 is inserted into the screw hole 4. The mechanism section chassis 6 is fastened to the tongue piece 5 by screwing the screws 7.
[0013]
In the mechanism support mechanism, the mechanism chassis 6 is fastened to the screw hole at the position where the rising portion 2 of the tongue piece 5 and the central axis coincide. A load due to the weight of the mechanism unit and the acceleration of vibration is applied to the support position of the mechanism unit chassis 6, but the action point is not separated from the rising portion 2 as shown in FIG. No bending moment is generated.
[0014]
Although the load of P acts as a compressive load on the rising portion 2, the buckling strength against the compressive load is extremely larger than the strength against the bending moment of the same load, so that the rising portion 2 of the tongue piece 5 is not deformed.
[0015]
The embodiment is configured as described above, but the invention is not limited to this. For example, the invention is not limited to an in-vehicle audio device as long as the mechanism portion is supported by a tongue piece cut and raised from the chassis bottom plate. Applicable.
[0016]
【The invention's effect】
According to the mechanism portion supporting mechanism of the present invention, since the bending moment is not applied to the tongue piece cut and raised from the chassis bottom plate and supporting the mechanism portion, the load holding strength can be greatly increased as compared with the conventional one.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a mechanism support mechanism of an in-vehicle audio apparatus according to an embodiment of the present invention.
FIG. 2 is a partial side view showing the mechanism portion supporting mechanism.
FIG. 3 is an exploded perspective view showing an example of a mechanism support mechanism of a conventional in-vehicle audio device.
FIG. 4 is a partially exploded perspective view showing the mechanism portion support mechanism.
FIG. 5 is a partial side view showing the mechanism supporting mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Chassis bottom plate 2 Standing part 3 Flat part 4 Screw hole 5 Tongue piece 6 Mechanism part chassis, 6a Hole 7 Screw 8 Chassis bottom plate 9 Standing part 10 Bending part 11 Screw hole 12 Tongue piece 13 Reinforcement bead

Claims (2)

シャーシ底板から切り起こした立ち上がり舌片に機構部を締着する機構部支持機構において、前記舌片の立ち上がり部から曲げた前記シャーシ底板と平行方向に延びる上部折曲げ部に前記立ち上がり部を越える平面部を設け、この平面部に中心軸が前記立ち上がり部の位置と一致する穴を設け、この穴により前記機構部を締着することを特徴とする機構部支持機構。In a mechanism support mechanism for fastening a mechanism to a rising tongue piece cut and raised from a chassis bottom plate, a plane that extends from the rising portion of the tongue piece to an upper bent portion that extends in a direction parallel to the chassis bottom plate and extends beyond the rising portion. A mechanism portion support mechanism, wherein a hole having a central axis coincident with the position of the rising portion is provided in the flat portion, and the mechanism portion is fastened by the hole. 前記穴は前記機構部を締着するねじと螺合するねじ穴である請求項1の機構部支持機構。The mechanism support mechanism according to claim 1, wherein the hole is a screw hole that is screwed into a screw that fastens the mechanism.
JP2000384636A 2000-12-19 2000-12-19 Mechanism support mechanism Expired - Lifetime JP3798624B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000384636A JP3798624B2 (en) 2000-12-19 2000-12-19 Mechanism support mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000384636A JP3798624B2 (en) 2000-12-19 2000-12-19 Mechanism support mechanism

Publications (2)

Publication Number Publication Date
JP2002185164A JP2002185164A (en) 2002-06-28
JP3798624B2 true JP3798624B2 (en) 2006-07-19

Family

ID=18852043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000384636A Expired - Lifetime JP3798624B2 (en) 2000-12-19 2000-12-19 Mechanism support mechanism

Country Status (1)

Country Link
JP (1) JP3798624B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2006106827A1 (en) * 2005-03-31 2008-09-11 パイオニア株式会社 Case body and electrical equipment
DE102005060137B4 (en) * 2005-12-16 2008-09-11 A. Raymond Et Cie Blechmutter
JP5848078B2 (en) * 2011-09-22 2016-01-27 トヨタ自動車株式会社 Shield cover
WO2020202503A1 (en) * 2019-04-03 2020-10-08 三菱電機株式会社 Vehicle-mounted electronic apparatus

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