JP2004293960A - Wind direction adjusting device - Google Patents

Wind direction adjusting device Download PDF

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JP2004293960A
JP2004293960A JP2003088346A JP2003088346A JP2004293960A JP 2004293960 A JP2004293960 A JP 2004293960A JP 2003088346 A JP2003088346 A JP 2003088346A JP 2003088346 A JP2003088346 A JP 2003088346A JP 2004293960 A JP2004293960 A JP 2004293960A
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wind direction
direction adjusting
adjusting device
density polyethylene
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JP3999153B2 (en
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Yoshitaka Ishiguro
芳孝 石黒
Yasunori Sei
泰憲 清
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Nihon Plast Co Ltd
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Nihon Plast Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind direction adjusting device having wear resistance bearable to the use for a long period of time and recyclable without separating members of the wind direction adjusting device. <P>SOLUTION: In the wind direction adjusting device at least consisting of a wind direction adjusting member with a shaft part and a member with a bearing part for turnably supporting the shaft part, either the wind direction adjusting member with the shaft part or the bearing part for turnably supporting the shaft part is made of a high density polyethylene resin with mass density equal to or more than 0.941 specified by JIS K 6748 and the other one is made of an olefinic resin except for high density polyethylene resin. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明が属する技術分野】
本発明は、エアコンの風向を調整する風向調整装置に関する。詳しくは、耐久性に優れ、かつ分別することなく、リサイクルすることが可能風向調整装置に関する。
【０００２】
【従来の技術】
自動車の車室内に空調用空気を吹き出す、吹き出し口に配設される風向調整装置は、風向偏向用のルーバーを取り付けたハウジングをケース体に回動軸によって回動可能に支持し、ハウジング体を乗員などが操作して任意の風向を得る用にしている。例えば、特開平１０−１１９５６３号公報（特許文献１）などをあげることができる。
【０００３】
該公報では、風向調整用ハウジング２の回動軸６とスペーサー１０の回動軸受け部１０ａとの間の回動抵抗により、所望の操作トルクを発生させている。安価で、精度よく軸と軸受け部を構成するために、軸と軸受け部は成型品の組み付けが一般的となっている。所望の操作トルクを得るために、異材質からなる部材の組み合わせ、特に軸受け部にポリアセタールが、用いられている。ポリアセタールは、剛性が高いため長期間使用しても摩耗の心配がなく、広く用いられている。
【０００４】
近年、環境問題の観点からリサイクルを考慮し、ルーバー（軸部）とハウジング（軸受け部）を異材質でなく、同系材料から構成するようにした風向調整装置がある（特開２００２−６７６７８、特許文献２）。
しかし、同系の樹脂で軸部と軸受け部を形成すると、長期間使用するうち軸受け部に摩耗が生じ、ルーバーががたつくなどのトルクの低下が問題となり、その改善が求められている。
【０００５】
【特許文献１】
特開平１０−１１９５６３
【特許文献２】
特開２００２−６７６７８
【０００６】
【発明が解決しようとする課題】
本発明は、こうした状況の下に、長期間の使用に耐える耐摩耗性を有し、しかも風向調整装置の部材を分別することなく、リサイクルが可能となる風向調整装置を提供することを目的とするものである。
【０００７】
【課題を解決するための手段】
本発明者らは、上記課題を解決し得る風向調整装置の成形樹脂材料について鋭意検討した結果、非常に驚くべきことに、軸部と軸受け部のいずれもオレフィン系樹脂から選択し、かつそのいずれか一方を高密度ポリエチレン樹脂とした組み合わせで構成したときは、長期間の使用が可能であり、しかも両者が同系統の樹脂材料であるので、これらを分別することなくそのままリサイクルが可能であることを知見し、本発明に至った。
【０００８】
すなわち、本発明は、
（１）軸部を備える風向調整用部材と、該軸部を回動可能に支持する軸受け部を備える部材とから少なくともなる風向調整装置であって、前記軸部を備える風向調整用部材または前記軸部を回動可能に支持する軸受け部のいずれか一方がＪＩＳ Ｋ ６７４８で規定される密度０．９４１以上の高密度ポリエチレン樹脂からなり、他方が該高密度ポリエチレン樹脂を除くオレフィン系樹脂からなることを特徴とする風向調整装置、
（２）前記軸受け部が凹部である請求項１記載の風向調整装置、
（３）前記一方の部材が１０〜３０％（重量％以下同じ）のタルクを含有するＪＩＳ Ｋ ６７４８で規定される密度０．９４１以上の高密度ポリエチレン樹脂からなる請求項１または２記載の風向調整装置、
に関する。
【０００９】
本発明は、上記の通り、風向調整装置において風向調整用部材の軸部とそれを回動可能に支持する軸受け部の材質の選択が重要であって、そのほかの構造などに制限を受けるものではない。
本発明においては、風向調整装置の部材をその耐久性、特に風向調整するために頻繁に操作されて、それに伴い風向調整用部材の軸部とそれを回動可能に支持する部材との間で生じる摩耗に耐え、長期間使用しても所望の操作トルクを維持し、がたつきを起こすことがないという風向調整装置に本来要求される性能を保持しながら、他方リサイクル時には、各構成部材を分別することなくそのまま樹脂材料として再利用できるように同系統の樹脂材料から特定の組み合わせを選択したものである。
【００１０】
そして、一方の部材の樹脂材料として、高密度ポリエチレン樹脂を選択し、他方の樹脂材料として該高密度ポリオレフィン樹脂を除くポリオレフィン系樹脂を選択することにより達成することができたものである。このことが全く予想外の結果であったことは、高密度ポリエチレン樹脂に代えて低密度ポリエチレンや中密度ポリエチレンを使用しても、また、高密度ポリエチレン樹脂同士で組み合わせて使用してもやはり所期の目的は達成されないことから明らかである。
なお、本発明に使用する高密度ポリエチレン樹脂は、ＪＩＳ Ｋ ６７４８で規定される密度が０．９４１以上０．９７０程度のものである。また、ポリオレフィン系樹脂としては、特に制限はなく、中密度ポリエチレン、低密度ポリエチレン、ポリプロピレン。ポリブチレンなどがあるが、本発明においては、ポリプロピレン樹脂と高密度ポリエチレン樹脂との組み合わせがより好ましい。また、本発明に使用する高密度ポリエチレン樹脂は、１０〜３０％のタルクを配合することが好ましい。最終製品としてのタルク含有率が１０％未満では、成形品としての剛性が低く、強度も劣る。タルク含有率が３０％より高いと、表面硬度及び粗さが高くなり、滑らかな摺動を長期にわたって維持することが難しい。更に好ましくは、１５〜３０％であり、成形品としての高密度ポリエチレン樹脂の強度、剛性を向上させるのに最も効果的である。
【００１１】
本発明の風向調整装置における軸部を備える風向調整用部材としては、どのようなものでも使用することができる。例えば通常の風向調整用ハウジングタイプあるいはルーバータイプのいずれでもよい。また、該軸部を回動可能に支持する軸受け部を備える部材としては、例えば前記各タイプに使用されるスペーサに軸受け部を設けたものを使用することができる。この軸受け部は、端部が閉塞された凹部の形状が好ましく、その場合には軸部との間で初期の磨耗で薄層に削れた高密度ポリエチレン樹脂材料膜がその凹部に保持される。本発明の予想外の耐久性が達成できた理由については、まだ十分には解明できていないが、本発明者らは、この初期の磨耗で薄層に剥離した高密度ポリエチレン樹脂膜の潤滑機能が寄与しているものと推定している。
【００１２】
以下に図面に基づき、本発明の実施例を説明する。
以下の実施例では、軸部と該軸部を回動可能に支持する軸受け部をハウジング本体の回動軸とスペーサとして、あるいはルーバーの回動軸とスペーサとして説明しているが、これらの態様に制限されるものではなく、風向調整装置の軸部と該軸部を回動可能に支持する軸受け部を構成するものであればよい。
実施例１
図１は、本発明の実施例を示す風向調整装置の分解斜視図である。図１中、１はフロントフィニシャー、２は風向調整用部材である風向調整用ハウジング体で、一体に形成された横ルーバー３、別体に形成され組み付けられた縦ルーバー４と、該縦ルーバー４の操作ノブ５が取り付けられる。６は回動軸、８はケース体で、両側８ａ前部にスペーサ挿通凹部８ｂを外側に突出形成し、スペーサ係止孔８ｃを設けてある。１０はスペーサで、前記回動軸６が嵌合する回動軸受け部１０ａとスペーサ係止孔８ｃに係止する係止突部１０ｂとが設けてある。なお、図１に示すスペーサ１０に設けた軸受け部１０ａは、貫通孔となっているが、これはケース体８に取り付けられた状態において１０ａ端部がケース体に押しつけられて閉塞され、軸受け部は凹部を形成する。しかし、スペーサ１０の軸受け部１０ａを非貫通孔としてもよい。フロントフィニッシシャー１の裏面側にはリブ１ａを設け、ケース体８のスペーサ挿通凹部８ｂに当接する。
【００１３】
組立は、まずスペーサの回動軸受け部１０ａに風向調整用ハウジング体２の回動軸６を嵌合し、スペーサ挿通凹部８ｂにスペーサ１０を挿通し、係止突部１０ｂをスペーサ係止孔８ｃに嵌入係止してケース体８に固定する。次いで、フロントフィニッシャー１をケース体８の乗員側面から係止する。スペーサ１０は、ケース体のスペーサ挿通凹部８ｂとフロントフィニッシャー１のリブ１ａとにより確実に固定される。
この実施例において、風向調整用部材である前記ハウジング体２は、ポリプロピレン樹脂から成形され、その軸部を回動可能に支持する部材である前記スペーサは、高密度ポリエチレン樹脂から成形される。
【００１４】
すなわち、ハウジング体２は、２０％のタルクを含むポリプロピレン（日本ポリケム（株）製 ＴＸ１４１２）を射出成形して製造した。
また、スペーサ１０は、高密度ポリエチレン樹脂（密度０．９６２）（出光石油化学（株）製 ＩＤＥＭＩＴＳＵ ＨＤー１１０Ｊ）７０部と、タルクマスターバッチ（カルプ工業（株）製 ＭＰ４７０−１：７０％タルク含有）３０部とを射出成形して製造した。
また、フロントフィニッシャー１，縦ルーバー４、及びケース体８は、ハウジング体２と同じ樹脂から成形した。
【００１５】
図２は、風向調整用ハウジング体にスペーサを取付けケース体に挿入する際の側面説明図で、図３は風向調整用ハウジング体をケース体に挿入したときの要部平面図である。
【００１６】
実施例２
また、図４は、本発明の別の実施例を示すルーバータイプといわれている風向調整装置の外観斜視図である。図５は、その分解斜視図である。図４，５中、２１は、ノブ２２の上下回動により上下に連動回動する複数のルーバーで、両側端の軸２３を矩形板状の一対のスペーサ２４に軸嵌めし、中央のルーバー２１の一側端偏心位置よりピン２５を突設し、該ピン２５を前記スペーサ２４に形成した円弧状ストッパ孔２６に嵌挿させ、ルーバーと一体のスペーサ２４、スペーサ２４を空調ケース体２７の前部両内側に設けた嵌合凹所としての矩形状凹所２８に前方よりスライドさせながら嵌め、同時に上記スペーサの外側面に設けた一方の係止部としての係止凸部２９を上記嵌合凹所（矩形状凹所）２８の内側面に設けた他方の係止部としての嵌合凹部２０に嵌着することにより、上記スペーサ２４、２４を固定し、上記空調ケース体２７の前面よりフィニッシャー１１を挿着する。
図６は、図４ＡＡ線断面図である。
【００１７】
この実施例に使用する風向調整用部材であるルーバー２１は、ポリプロピレン樹脂から成形され、またその軸受け部であるスペーサ２４は高密度ポリエチレン樹脂から成形される。
すなわち、ルーバー２１は、３５％ガラス繊維入りポリプロピレン樹脂（チッソ石油化学（株）製 Ｒ３５０Ｇ）を射出成形して製造した。
また、スペーサ２４は、高密度ポリエチレン樹脂（密度０．９６２）（出光石油化学（株）製 ＩＤＥＭＩＴＳＵ ＨＤー１１０Ｊ）７０部と、タルクマスターバッチ（カルプ工業（株）製 ＭＰ４７０−１：７０％タルク含有）３０部とを射出成形して製造した。
ケース体２８及びフィニッシャー１１は、２０％のタルクを含むポリプロピレン（日本ポリケム（株）製 ＴＸ１４１２）を射出成形して製造した。
【００１８】
比較例
実施例１において、スペーサを高密度ポリエチレン樹脂で成形する代わりに、低密度ポリエチレン樹脂（出光石油化学（株）製 ＩＤＥＭＩＴＳＵ ＬＬ １０１４Ｇ 密度０．９１０）を使用して成形する以外は実施例１と同様にして各部材を得て、また同様に組み立てて、比較例の風向調整装置を製造した。
この比較例と前記実施例１の風向調整装置を使用して、以下のようにして回動耐久試験を行った。
組立直後のハウジング体が正面を向いた状態で操作ノブを下方に押し下げた時に発生する荷重を測定した。これを初期荷重とする。ハウジング体を上下に１往復ずつ回動させ、５０回回動後、１００００回回動後にそれぞれハウジングが正面を向いた状態で操作ノブを下方に押し下げた時に発生する荷重を測定した。なお、この回動操作は、初期荷重測定後から、風向調整装置の回動耐久試験機（トラバース試験機）に取付け行った。
【００１９】
その測定結果を以下に示す。

Figure 2004293960
【００２０】
実施例１においては、スペーサ１０を高密度ポリエチレン樹脂で成形し、ハウジング体をポリプロピレン樹脂で成形し、したがって、回動軸部をポリプロピレン樹脂で成形しており、この組合せにおいては、５０回回動時に、約６．７％の荷重の低下が認められたものの、磨耗による荷重の低下というより、回動部がなじむことによる低下と考えられる。回動部がなじんだ後、１万回耐久試験後においても、風向調整装置としての基準値を十分に確保している。これに対して、スペーサ１０に低密度ポリエチレン樹脂を使用した比較例においては、５０回回動時においてすでに摺動部に磨耗粉の発生が見られ、６６．７％の荷重が低下し、実施例に比べて、荷重が急激に低下している。
【００２１】
【発明の効果】
以上説明したように、本発明による風向調整装置は、その風向調整用部材の軸部とその軸受け部の材質をポリオレフィン樹脂から選び、かつそのいずれか一方を高密度ポリエチレン樹脂としたことにより、そのリサイクル時にはそれを各構成部材に分解、分別することなく、そのままポリオレフィン系樹脂材料として再利用が可能であり、しかもこのように同系統のポリオレフィン樹脂材料を使用しているのに、前記の組合せだけが全く予想外にも、十分な耐久性も確保することができる。加えて、こうした効果が、従来の高価なポリアセタール樹脂の使用に代えて、安価なポリオレフィン系樹脂の使用によってもたらされたことも大いに評価される。
【００２２】
【図面の簡単な説明】
【図１】本発明（実施例１）の風向調整装置の分解斜視図。
【図２】同上の風向調整装置において、ハウジング体にスペーサを取付、ケース体に挿入する際の状態の説明図。
【図３】同上ハウジング体をケース体に挿入した状態の要部平面図。
【図４】本発明（実施例２）の風向調整装置の外観斜視図。
【図５】本発明（実施例２）の風向調整装置の分解斜視図。
【図６】図４ＡＡ線断面図。
【００２３】
【符号の説明】
２：風向調整用ハウジング体
６、１３：回動軸
１０、１４：スペーサ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wind direction adjusting device for adjusting a wind direction of an air conditioner. More specifically, the present invention relates to a wind direction adjusting device which has excellent durability and can be recycled without separation.
[0002]
[Prior art]
A wind direction adjusting device that blows air for air-conditioning into a passenger compartment of an automobile and that is disposed at an outlet thereof supports a housing to which a louver for deflecting the wind direction is attached to a case body so as to be rotatable by a rotating shaft, and the housing body is An occupant or the like operates to obtain an arbitrary wind direction. For example, JP-A-10-119563 (Patent Document 1) and the like can be mentioned.
[0003]
In this publication, a desired operation torque is generated by the rotation resistance between the rotation shaft 6 of the wind direction adjusting housing 2 and the rotation bearing portion 10a of the spacer 10. In order to form the shaft and the bearing portion at low cost and with high precision, it is common to assemble a molded product of the shaft and the bearing portion. In order to obtain a desired operation torque, a combination of members made of different materials, particularly, polyacetal is used for a bearing portion. Polyacetal is widely used because it has high rigidity and does not have to worry about wear even when used for a long time.
[0004]
In recent years, in consideration of recycling from the viewpoint of environmental problems, there is a wind direction adjusting device in which the louver (shaft portion) and the housing (bearing portion) are made of the same material, not dissimilar materials (Japanese Patent Application Laid-Open No. 2002-67678, Patent Reference 2).
However, when the shaft portion and the bearing portion are formed of the same type of resin, the bearing portion wears out after long-term use, which causes a problem of torque reduction such as rattling of the louver, and its improvement is required.
[0005]
[Patent Document 1]
JP-A-10-119563
[Patent Document 2]
JP-A-2002-67678
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide a wind direction adjusting device that has abrasion resistance that can withstand long-term use under such circumstances, and that can be recycled without separating the members of the wind direction adjusting device. Is what you do.
[0007]
[Means for Solving the Problems]
The present inventors have conducted intensive studies on a molding resin material for a wind direction adjusting device that can solve the above-described problems, and as a result, very surprisingly, both the shaft portion and the bearing portion were selected from olefin-based resins, and If one of them is composed of high-density polyethylene resin, it can be used for a long time, and since both are the same type of resin material, they can be recycled without separation. And found the present invention.
[0008]
That is, the present invention
(1) A wind direction adjusting device comprising at least a wind direction adjusting member including a shaft portion and a member including a bearing portion rotatably supporting the shaft portion, wherein the wind direction adjusting member including the shaft portion or the wind direction adjusting member. One of the bearing portions rotatably supporting the shaft portion is made of a high-density polyethylene resin having a density of 0.941 or more specified by JIS K 6748, and the other is made of an olefin-based resin excluding the high-density polyethylene resin. A wind direction adjusting device,
(2) The wind direction adjusting device according to claim 1, wherein the bearing portion is a concave portion.
(3) The wind direction according to (1) or (2), wherein the one member is made of a high-density polyethylene resin having a density of 0.941 or more specified by JIS K 6748 containing 10 to 30% (weight% or less) of talc. Adjustment device,
About.
[0009]
In the present invention, as described above, in the wind direction adjusting device, it is important to select the material of the shaft portion of the wind direction adjusting member and the bearing portion that rotatably supports the shaft portion, and is not limited to other structures and the like. Absent.
In the present invention, the members of the wind direction adjusting device are frequently operated to adjust the durability thereof, particularly the wind direction, and accordingly, the shaft portion of the wind direction adjusting member and the member for rotatably supporting the shaft portion of the wind direction adjusting member are accordingly operated. While maintaining the performance originally required of the wind direction adjusting device, which resists the abrasion that occurs and maintains the desired operating torque even after long-term use, and does not cause rattling, each component member is recycled during recycling. A specific combination is selected from the same type of resin material so that the resin material can be reused as it is without separation.
[0010]
This is achieved by selecting a high-density polyethylene resin as the resin material of one member and selecting a polyolefin resin excluding the high-density polyolefin resin as the other resin material. That this was a completely unexpected result is that even when low-density polyethylene or medium-density polyethylene is used instead of high-density polyethylene resin, or when high-density polyethylene resin is used in combination, It is clear that the purpose of the period is not achieved.
The high-density polyethylene resin used in the present invention has a density specified by JIS K 6748 of about 0.941 or more and about 0.970. The polyolefin resin is not particularly limited, and may be medium density polyethylene, low density polyethylene, or polypropylene. Although there is polybutylene and the like, in the present invention, a combination of a polypropylene resin and a high-density polyethylene resin is more preferable. The high-density polyethylene resin used in the present invention preferably contains 10 to 30% of talc. If the talc content of the final product is less than 10%, the rigidity of the molded product is low and the strength is poor. If the talc content is higher than 30%, the surface hardness and the roughness increase, and it is difficult to maintain smooth sliding for a long period of time. More preferably, the content is 15 to 30%, which is most effective for improving the strength and rigidity of a high-density polyethylene resin as a molded product.
[0011]
As the wind direction adjusting member including the shaft portion in the wind direction adjusting device of the present invention, any member can be used. For example, it may be either a normal wind direction adjusting housing type or a louver type. Further, as a member including a bearing portion for rotatably supporting the shaft portion, for example, a member provided with a bearing portion on a spacer used for each type described above can be used. This bearing portion preferably has a shape of a concave portion whose end is closed. In this case, a high-density polyethylene resin material film cut into a thin layer by initial abrasion with the shaft portion is held in the concave portion. Although the reason why the unexpected durability of the present invention could be achieved has not yet been fully elucidated, the present inventors have studied the lubricating function of the high-density polyethylene resin film that was peeled into a thin layer by this initial wear. Are estimated to have contributed.
[0012]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the following embodiments, the shaft portion and the bearing portion rotatably supporting the shaft portion are described as the rotation shaft and the spacer of the housing body or as the rotation shaft and the spacer of the louver. However, the present invention is not limited to this, and any configuration may be used as long as it constitutes a shaft of the wind direction adjusting device and a bearing that rotatably supports the shaft.
Example 1
FIG. 1 is an exploded perspective view of a wind direction adjusting device showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a front finisher, 2 denotes a wind direction adjusting housing body which is a wind direction adjusting member, a horizontal louver 3 formed integrally, a vertical louver 4 formed separately and assembled, and the vertical louver. Four operation knobs 5 are attached. Reference numeral 6 denotes a rotating shaft, 8 denotes a case body, and a spacer insertion recess 8b is formed at the front of both sides 8a so as to protrude outward, and a spacer locking hole 8c is provided. Reference numeral 10 denotes a spacer, which is provided with a rotation bearing 10a to which the rotation shaft 6 is fitted and a locking projection 10b to be locked in the spacer locking hole 8c. The bearing portion 10a provided in the spacer 10 shown in FIG. 1 is a through hole. When the bearing portion 10a is attached to the case body 8, the end of the bearing 10a is pressed against the case body and closed. Form a recess. However, the bearing portion 10a of the spacer 10 may be a non-through hole. A rib 1a is provided on the back side of the front finisher 1, and abuts against the spacer insertion recess 8b of the case body 8.
[0013]
First, the rotating shaft 6 of the housing 2 for adjusting the wind direction is fitted into the rotating bearing portion 10a of the spacer, the spacer 10 is inserted into the spacer insertion recess 8b, and the locking projection 10b is inserted into the spacer locking hole 8c. And fixed to the case body 8. Next, the front finisher 1 is locked from the side of the occupant of the case body 8. The spacer 10 is securely fixed by the spacer insertion recess 8b of the case body and the rib 1a of the front finisher 1.
In this embodiment, the housing body 2 which is a member for adjusting the wind direction is formed of polypropylene resin, and the spacer which is a member for rotatably supporting the shaft portion is formed of high density polyethylene resin.
[0014]
That is, the housing body 2 was manufactured by injection molding a polypropylene containing 20% talc (TX1412 manufactured by Japan Polychem Co., Ltd.).
The spacer 10 is composed of 70 parts of high-density polyethylene resin (density 0.962) (IDEMISU HD-110J manufactured by Idemitsu Petrochemical Co., Ltd.) and talc master batch (MP470-1 manufactured by Calp Industries, Ltd .: 70% talc) (Containing 30 parts).
Further, the front finisher 1, the vertical louver 4, and the case body 8 were molded from the same resin as the housing body 2.
[0015]
FIG. 2 is an explanatory side view of the case where the spacer is inserted into the housing body for adjusting the wind direction, and FIG. 3 is a plan view of the main part when the housing body for adjusting the wind direction is inserted into the case body.
[0016]
Example 2
FIG. 4 is an external perspective view of a louver type wind direction adjusting device showing another embodiment of the present invention. FIG. 5 is an exploded perspective view thereof. 4 and 5, reference numeral 21 denotes a plurality of louvers which rotate vertically in conjunction with the vertical rotation of a knob 22. The shafts 23 at both ends are fitted into a pair of rectangular plate-shaped spacers 24, and the central louver 21 is provided. A pin 25 is protruded from one side end eccentric position, and the pin 25 is fitted into an arc-shaped stopper hole 26 formed in the spacer 24, and the spacer 24 integrated with the louver is placed in front of the air conditioning case body 27. The spacer is fitted into the rectangular recess 28 as a fitting recess provided on both inner sides of the spacer while sliding from the front, and at the same time, the locking projection 29 as one locking portion provided on the outer surface of the spacer is fitted with the fitting. The spacers 24, 24 are fixed by fitting into the fitting concave portion 20 as the other locking portion provided on the inner side surface of the concave portion (rectangular concave portion) 28, and from the front surface of the air conditioning case body 27. The finisher 11 is inserted.
FIG. 6 is a sectional view taken along the line AA of FIG.
[0017]
The louver 21, which is a member for adjusting the wind direction used in this embodiment, is formed of polypropylene resin, and the spacer 24, which is a bearing thereof, is formed of high-density polyethylene resin.
That is, the louver 21 was manufactured by injection molding a polypropylene resin containing 35% glass fiber (R350G manufactured by Chisso Petrochemical Co., Ltd.).
The spacer 24 is composed of 70 parts of high-density polyethylene resin (density 0.962) (IDEMISU HD-110J manufactured by Idemitsu Petrochemical Co., Ltd.) and talc masterbatch (MP470-1 manufactured by Calp Industries, Ltd .: 70% talc) (Containing 30 parts).
The case body 28 and the finisher 11 were manufactured by injection molding a polypropylene containing 20% talc (TX1412 manufactured by Nippon Polychem Co., Ltd.).
[0018]
Comparative Example 1 Example 1 was repeated except that the spacer was molded using a low-density polyethylene resin (IDEMISULL 1014G, density 0.910, manufactured by Idemitsu Petrochemical Co., Ltd.) instead of molding the spacer with a high-density polyethylene resin. Each member was obtained in the same manner as described above and assembled in the same manner to produce a wind direction adjusting device of a comparative example.
Using this comparative example and the wind direction adjusting device of Example 1, a rotation endurance test was performed as follows.
The load generated when the operation knob was pushed down with the housing body facing right after assembly was measured. This is defined as the initial load. The housing body was rotated one reciprocation up and down, and after 50 rotations and 10,000 rotations, the load generated when the operation knob was pushed down with the housing facing the front was measured. Note that this rotation operation was performed after the initial load measurement, by attaching to a rotation durability tester (traverse tester) of the wind direction adjusting device.
[0019]
The measurement results are shown below.
Figure 2004293960
[0020]
In the first embodiment, the spacer 10 is formed of high-density polyethylene resin, the housing body is formed of polypropylene resin, and therefore, the rotating shaft is formed of polypropylene resin. Although the load was reduced by about 6.7%, it is considered that the load was not reduced due to wear but was reduced due to the adaptation of the rotating part. Even after the rotation part has been adjusted, the reference value as the wind direction adjusting device is sufficiently ensured even after the endurance test for 10,000 times. On the other hand, in the comparative example in which the low-density polyethylene resin was used for the spacer 10, abrasion powder was already generated in the sliding portion after 50 rotations, and the load of 66.7% was reduced. The load is sharply reduced as compared with.
[0021]
【The invention's effect】
As described above, the wind direction adjusting device according to the present invention selects the material of the shaft portion and the bearing portion of the wind direction adjusting member from polyolefin resin, and by using either one of high-density polyethylene resin, At the time of recycling, it can be reused as a polyolefin resin material without disassembling and separating it into each component, and even though the same type of polyolefin resin material is used in this way, only the combination described above However, unexpectedly, sufficient durability can be ensured. In addition, it is greatly appreciated that such an effect is brought about by using a low-cost polyolefin-based resin instead of using a conventional expensive polyacetal resin.
[0022]
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a wind direction adjusting device according to the present invention (first embodiment).
FIG. 2 is an explanatory view of a state in which a spacer is attached to a housing body and inserted into a case body in the wind direction adjusting device according to the first embodiment.
FIG. 3 is an essential part plan view showing the same housing body inserted into a case body.
FIG. 4 is an external perspective view of a wind direction adjusting device according to the present invention (Embodiment 2).
FIG. 5 is an exploded perspective view of a wind direction adjusting device according to the present invention (second embodiment).
FIG. 6 is a sectional view taken along the line AA of FIG. 4;
[0023]
[Explanation of symbols]
2: Wind direction adjusting housing bodies 6, 13: Rotating shafts 10, 14: Spacers

Claims (3)

軸部を備える風向調整用部材と、該軸部を回動可能に支持する軸受け部を備える部材とから少なくともなる風向調整装置であって、前記軸部を備える風向調整用部材または前記軸部を回動可能に支持する軸受け部のいずれか一方がＪＩＳ Ｋ ６７４８で規定される密度０．９４１以上の高密度ポリエチレン樹脂からなり、他方が該高密度ポリエチレン樹脂を除くオレフィン系樹脂からなることを特徴とする風向調整装置。A wind direction adjusting member including a shaft portion, and a wind direction adjusting device including at least a member including a bearing portion rotatably supporting the shaft portion, wherein the wind direction adjusting member including the shaft portion or the shaft portion includes: One of the rotatably supported bearing portions is made of a high-density polyethylene resin having a density of 0.941 or more specified by JIS K 6748, and the other is made of an olefin resin excluding the high-density polyethylene resin. Wind direction adjustment device. 前記軸受け部が凹部である請求項１記載の風向調整装置。The wind direction adjusting device according to claim 1, wherein the bearing is a recess. 前記一方の部材が１０〜３０％のタルクを含有するＪＩＳ Ｋ ６７４８で規定される密度０．９４１以上の高密度ポリエチレン樹脂からなる請求項１または２記載の風向調整装置。The wind direction adjusting device according to claim 1 or 2, wherein the one member is made of a high-density polyethylene resin having a density of 0.941 or more specified by JIS K 6748 containing 10 to 30% of talc.
JP2003088346A 2003-03-27 2003-03-27 Wind direction adjustment device Expired - Fee Related JP3999153B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011033305A (en) * 2009-08-05 2011-02-17 Panasonic Corp Electrostatic atomizer
WO2013018385A1 (en) * 2011-08-03 2013-02-07 豊和化成株式会社 Long fin for register
JP2021041747A (en) * 2019-09-09 2021-03-18 豊田合成株式会社 Bezel for air-conditioning register and air-conditioning register
CN113819519A (en) * 2021-08-31 2021-12-21 青岛海尔空调器有限总公司 Air supply structure and air conditioner

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Publication number Priority date Publication date Assignee Title
CN104776584B (en) * 2015-03-18 2017-08-04 广东美的制冷设备有限公司 Air deflection assemblies and air conditioner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011033305A (en) * 2009-08-05 2011-02-17 Panasonic Corp Electrostatic atomizer
WO2013018385A1 (en) * 2011-08-03 2013-02-07 豊和化成株式会社 Long fin for register
JP2021041747A (en) * 2019-09-09 2021-03-18 豊田合成株式会社 Bezel for air-conditioning register and air-conditioning register
JP7194657B2 (en) 2019-09-09 2022-12-22 豊田合成株式会社 Air-conditioning register bezel and air-conditioning register
CN113819519A (en) * 2021-08-31 2021-12-21 青岛海尔空调器有限总公司 Air supply structure and air conditioner

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