JP4640263B2 - Air conditioning register - Google Patents

Air conditioning register Download PDF

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JP4640263B2
JP4640263B2 JP2006153664A JP2006153664A JP4640263B2 JP 4640263 B2 JP4640263 B2 JP 4640263B2 JP 2006153664 A JP2006153664 A JP 2006153664A JP 2006153664 A JP2006153664 A JP 2006153664A JP 4640263 B2 JP4640263 B2 JP 4640263B2
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damper plate
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正起 大竹
成徳 柴田
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Toyoda Gosei Co Ltd
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Description

本発明は自動車室内などに設けられ、空調装置からの温風又は冷風を吹き出す開口部を構成する空調用レジスタに関し、詳しくは空気流路を開閉するダンパプレートと、そのダンパプレートを揺動させるノブと歯車によるリンク機構とをもつ空調用レジスタに関する。   The present invention relates to an air-conditioning register provided in an automobile interior or the like and constituting an opening for blowing out hot air or cold air from an air conditioner, and more specifically, a damper plate that opens and closes an air flow path, and a knob that swings the damper plate And an air-conditioning register having a link mechanism using gears.

自動車のレジスタは、車室内を素早く空調すること、各座席の乗員に均等に風を送って快適性を向上させること、などを目的として、車室内に一般に複数個配置されている。しかし乗員数が少ない場合や、快適性の個人差などに応じて、各レジスタからの送風・停止を個別に制御する必要が生じる場合が多い。   In general, a plurality of automobile registers are arranged in the passenger compartment for the purpose of quickly air-conditioning the passenger compartment and improving the comfort by sending air evenly to passengers in each seat. However, there are many cases in which it is necessary to individually control the blowing / stopping from each register according to a small number of passengers or individual differences in comfort.

そこで従来のレジスタでは、温風又は冷風が流通する空気流路内にダンパプレートを揺動自在に配置し、吹出開口の近傍に設けられたノブによってダンパプレートを揺動駆動することで流路を開閉可能としている。ノブとダンパプレートとの間には複数の歯車などからなるリンク機構が介在され、手動操作によるノブの回動がダンパプレートの揺動に円滑に変換されるように構成されている。   Therefore, in a conventional register, a damper plate is swingably disposed in an air flow path through which hot air or cold air flows, and the damper plate is driven to swing by a knob provided in the vicinity of the blowout opening. It can be opened and closed. A link mechanism composed of a plurality of gears or the like is interposed between the knob and the damper plate, and the rotation of the knob by manual operation is smoothly converted into the swing of the damper plate.

ノブの手動操作によりダンパプレートを回動させる際、その操作性を向上させるためには、例えばダンパプレートの全閉時のノブの操作時にクリック感などの節度感を生じさせることが好ましい。そこで例えば特許第 3486733号公報に開示されているように、ノブの回動を伝達する歯車の一部に正規の歯溝より浅い小歯溝を設けるとともに、歯車の少なくとも一つを径方向に弾性変形可能としたリンク機構が実用化されている。   In order to improve the operability when the damper plate is rotated by manual operation of the knob, it is preferable to generate a moderation feeling such as a click feeling when the knob is operated when the damper plate is fully closed. Therefore, for example, as disclosed in Japanese Patent No. 3486733, a small tooth groove shallower than a normal tooth groove is provided in a part of the gear that transmits the rotation of the knob, and at least one of the gears is elastic in the radial direction. A deformable link mechanism has been put into practical use.

このリンク機構によれば、全閉時に他方の歯車の歯が小歯溝を乗り越える際に一つの歯車が径方向に弾性変形し、乗り越えが完了したときに弾性力が解放される。したがってノブの操作者には荷重の発生と解放による節度感が知覚され操作性が向上する。   According to this link mechanism, when the tooth of the other gear gets over the small groove when fully closed, one gear is elastically deformed in the radial direction, and the elastic force is released when the getting over is completed. Therefore, the operator of the knob perceives a sense of moderation due to the generation and release of the load, thereby improving operability.

ところでダンパプレートをもつ空調用レジスタにおいては、ダンパプレートのシール表面と流路の壁表面との隙間がある特定の範囲となったときに、その隙間から勢いのある風が吹出されることによって笛を吹くような笛音状の異音が発生する場合があった。このような異音が発生すると、車室内の静粛性が損なわれ、音楽などを聴いているときにはきわめて耳障りである。   By the way, in an air-conditioning register having a damper plate, when a gap between the seal surface of the damper plate and the wall surface of the flow path is in a specific range, a whistle is blown by blowing a strong wind from the gap. A whistle-like noise that blows the sound may occur. When such an abnormal noise occurs, the quietness in the passenger compartment is impaired, and it is extremely annoying when listening to music.

そこで特開2003−306033号公報には、歯車の一つを径方向に弾性変形可能とするとともに、歯の一部に歯幅が大きな大歯幅部を形成したリンク機構をもつ空調用レジスタが開示されている。この空調用レジスタによれば、ダンパプレートのシール表面と流路の壁表面との隙間が笛音状の異音が発生する寸法となった場合に、大歯幅部と他の歯車の歯部とが干渉する。したがって発生する弾性反力によって歯車が強制的に回動して他の歯車の歯部が大歯幅部を乗り越えるので、ダンパプレートのシール表面と流路の壁表面との隙間が笛音状の異音が発生する寸法となった状態でダンパプレートが静止するのが回避され、笛音状の異音が生じるのを防止できる。   Japanese Patent Laid-Open No. 2003-306033 discloses an air conditioning register having a link mechanism in which one of the gears is elastically deformable in the radial direction and a large tooth width portion having a large tooth width is formed on a part of the teeth. It is disclosed. According to this air-conditioning register, when the gap between the seal surface of the damper plate and the wall surface of the flow passage has a size that generates whistle-like noise, the large tooth width portion and the tooth portion of another gear Interfere with. Therefore, the gears are forcibly rotated by the elastic reaction force generated, and the tooth portions of the other gears get over the large tooth width portion, so the gap between the seal surface of the damper plate and the wall surface of the flow path is whistle-like. It is possible to prevent the damper plate from being stationary in a state where the noise is generated and to prevent the generation of whistle-like noise.

ところが特開2003−306033号公報に記載のリンク機構では、大歯幅部を形成するためには従来の歯車成形用の金型形状を大幅に変更する必要があり、金型製作のコスト面で問題があった。
特許第 3486733号 特開2003−306033号 However, in the link mechanism described in Japanese Patent Application Laid-Open No. 2003-306033, in order to form a large tooth width portion, it is necessary to drastically change the shape of a conventional gear forming die, and in terms of the cost of die production. There was a problem.
Patent No. 3486733 JP2003-306033

特許文献１に記載のダンパ機構においても、ダンパプレートのシール表面と流路の壁表面との隙間がある特定の範囲となったときに、笛音状の異音が発生する場合がある。また空調用レジスタの形状、吹き出す空気の風量などによっては、笛音状の異音が発生する隙間寸法が大きくなる場合がある。つまりダンパプレートが全閉となるまでの揺動角度のうちに、笛音状の異音が発生する角度範囲が広い場合がある。   Even in the damper mechanism described in Patent Document 1, whistle-like abnormal noise may be generated when the gap between the seal surface of the damper plate and the wall surface of the flow path falls within a specific range. Depending on the shape of the air-conditioning register, the amount of air blown out, etc., the gap size in which the whistle-like noise is generated may increase. That is, there may be a wide angle range in which whistle-like noise is generated in the swing angle until the damper plate is fully closed.

そこで本願発明者らは、特許文献１に記載のダンパ機構において、隣接する複数の歯溝を小歯溝とすることを想起した。例えば隣接する二つの歯溝を小歯溝とすれば、二つの小歯溝を他の歯車の歯部が乗り越えるときに特許文献２に記載の作用と同様の作用が奏され、揺動角度の広い範囲でダンパプレートが静止するのを回避できるため、笛音状の異音の発生を防止することが可能となる。   Therefore, the inventors of the present application have conceived that in the damper mechanism described in Patent Document 1, a plurality of adjacent tooth spaces are used as small tooth spaces. For example, if two adjacent tooth spaces are small teeth, when the tooth portions of other gears get over the two small teeth, the same effect as that described in Patent Document 2 is achieved, and the swing angle is reduced. Since the damper plate can be prevented from standing still in a wide range, it is possible to prevent the generation of whistle-like noise.

しかし例えば二つの歯溝を小歯溝とした場合には、他の歯車の歯部がそれぞれの小歯溝を乗り越える際に荷重の発生と解放による節度感が２回知覚されることになり、操作性が良いとは云えない。   However, for example, when the two tooth spaces are small teeth, the feeling of moderation due to the generation and release of the load is perceived twice when the tooth portion of the other gear gets over each small tooth space, It cannot be said that operability is good.

本発明は上記事情に鑑みてなされたものであり、全閉時の節度感を１回のみ知覚されるようにするとともに、笛音状の異音の発生を確実に防止することを解決すべき課題とする。さらにもう一つの解決すべき課題は、歯車成形用の金型を従来用いている金型から容易に形成できるようにして、金型製作のコストを低減することにある。   The present invention has been made in view of the above circumstances, and it should be solved that the moderation feeling when fully closed is perceived only once and that the generation of whistle-like abnormal noise is reliably prevented. Let it be an issue. Still another problem to be solved is to reduce the cost of mold production by making it possible to easily form a gear mold from a conventional mold.

上記課題を解決する本発明の空調用レジスタの特徴は、吹出開口と空気流路を形成する筒状のリテーナと、リテーナ内に揺動可能に軸支されたダンパプレートと、リテーナに回動可能に設けられたノブと、互いに噛合する少なくとも第１歯車及び第２歯車を含むリンク機構と、を含み、リンク機構によってノブの回動をダンパプレートの揺動に変換することでダンパプレートが揺動して空気流路を開閉する空調用レジスタであって、
リンク機構を構成する歯車の少なくとも一つは径方向に弾性変形可能に形成され、
第１歯車の一つの歯溝には正規の歯溝より浅い第１小歯溝部が形成され、
第２歯車の隣接する一対の歯溝には正規の歯溝より浅い第２小歯溝部が形成され、
ダンパプレートの少なくとも全閉時に第１歯車と第２歯車とが噛合する際、第１歯車の第１小歯溝部に隣接する一方の先行歯部が第２小歯溝部に噛合し、次いで第２歯車の一対の第２小歯溝部の間にある中間歯部が第１小歯溝部に噛合し、さらに第１歯車の第１小歯溝部に隣接する他方の後行歯部が第２小歯溝部に噛合することにある。 The air-conditioning register of the present invention that solves the above problems is characterized in that a cylindrical retainer that forms a blowout opening and an air flow path, a damper plate that is pivotally supported in the retainer and pivotable to the retainer And a link mechanism including at least a first gear and a second gear meshing with each other, and the damper plate swings by converting the rotation of the knob into the swing of the damper plate by the link mechanism. An air conditioning register that opens and closes the air flow path,
At least one of the gears constituting the link mechanism is formed to be elastically deformable in the radial direction,
A first small groove portion shallower than a normal tooth groove is formed in one tooth groove of the first gear,
A pair of adjacent tooth spaces of the second gear is formed with second small tooth spaces that are shallower than regular tooth spaces,
When the first gear and the second gear mesh with each other when the damper plate is at least fully closed, one of the leading teeth adjacent to the first small tooth groove of the first gear meshes with the second small tooth groove, and then the second gear. The intermediate tooth portion between the pair of second small tooth groove portions of the gear meshes with the first small tooth groove portion, and the other succeeding tooth portion adjacent to the first small tooth groove portion of the first gear is the second small tooth. It is in meshing with the groove.

第１小歯溝部の歯溝は、第２小歯溝部の歯溝より浅いことがさらに望ましい。   More preferably, the tooth gap of the first small tooth groove portion is shallower than the tooth groove of the second small tooth groove portion.

本発明の空調用レジスタによれば、ダンパプレートの少なくとも全閉時に第１歯車と第２歯車とが噛合する際、第１歯車の第１小歯溝部に隣接する一方の先行歯部が第２小歯溝部に噛合し、次いで第２歯車の一対の第２小歯溝部の間にある中間歯部が第１小歯溝部に噛合し、さらに第１歯車の第１小歯溝部に隣接する他方の後行歯部が第２小歯溝部に噛合する。これらの噛合時には、第１歯車及び第２歯車の少なくとも一方が径方向に弾性変形するため、それぞれ荷重が発生する。しかも第１歯車の先行歯部、第１小歯溝部、後行歯部という連続する三つの周方向距離に相当する回動という短い間に、連続して荷重が３回発生する。したがってノブの操作者には１回の荷重変化に知覚され、全閉時の節度感が１回のみ知覚されるので、操作性に優れている。   According to the air-conditioning register of the present invention, when the first gear and the second gear mesh with each other when the damper plate is at least fully closed, the one preceding tooth portion adjacent to the first small tooth groove portion of the first gear is the second. The intermediate tooth portion between the pair of second small tooth groove portions of the second gear meshes with the first small tooth groove portion, and the other adjacent to the first small tooth groove portion of the first gear. The following tooth part meshes with the second small tooth groove part. At the time of meshing, at least one of the first gear and the second gear is elastically deformed in the radial direction, and thus a load is generated. In addition, the load is generated three times in a short period of time corresponding to three consecutive circumferential distances of the leading tooth portion, the first small tooth groove portion, and the trailing tooth portion of the first gear. Therefore, the knob operator is perceived as a single load change, and the moderation feeling when fully closed is perceived only once, which is excellent in operability.

そして第１小歯溝部の歯溝を第２小歯溝部の歯溝より浅くすれば、ダンパプレートの少なくとも全閉時に第１歯車と第２歯車とが噛合する際の初期と後期との中間で最も荷重を高くすることができ、節度感がさらに向上する。   If the tooth groove of the first small tooth groove portion is made shallower than the tooth groove of the second small tooth groove portion, at least between the initial stage and the late stage when the first gear and the second gear mesh when the damper plate is at least fully closed. The load can be increased most and the moderation feeling is further improved.

また上記した荷重が３回連続的に作用し、歯車の弾性変形が連続的に生じるので、第１歯車の先行歯部、第１小歯溝部、後行歯部という連続する三つの周方向距離に相当する回動がその弾性反力によって促進され、ダンパプレートが全閉時の途中で静止するのが抑制される。したがってダンパプレートの揺動角度の広い範囲で笛音状の異音の発生を防止することができる。   In addition, since the above-described load acts continuously three times and the elastic deformation of the gear continuously occurs, the three consecutive circumferential distances of the leading tooth portion, the first small tooth groove portion, and the trailing tooth portion of the first gear. The rotation corresponding to is promoted by the elastic reaction force, and the damper plate is restrained from resting in the middle of the fully closed state. Therefore, it is possible to prevent whistle-like noises from occurring in a wide range of the swing angle of the damper plate.

さらに第１小歯溝部及び第２小歯溝部を成形する金型を製造するには、それぞれ従来用いられている金型の歯溝形成部分の先端を僅かに切削するのみで製造することができる。したがって金型製作のコストを低減することができる。   Furthermore, in order to manufacture a mold for forming the first small tooth groove part and the second small tooth groove part, it is possible to manufacture by merely slightly cutting the tip of the tooth groove forming part of the conventionally used mold. . Therefore, the cost of mold manufacture can be reduced.

本発明の空調用レジスタは、リテーナと、ダンパプレートと、ノブと、リンク機構と、を含んでいる。リテーナは吹出開口と空気流路を形成する筒状の部材であり、従来用いられているものをそのまま利用することができる。その断面形状も多角形、円形、楕円形など、特に制限されない。リテーナの吹出開口と反対側は、空調装置の空気吹き出し口に連結されている。   The air conditioning register of the present invention includes a retainer, a damper plate, a knob, and a link mechanism. The retainer is a cylindrical member that forms a blowout opening and an air flow path, and a conventionally used one can be used as it is. The cross-sectional shape is not particularly limited, such as a polygon, a circle, or an ellipse. The side opposite to the outlet opening of the retainer is connected to the air outlet of the air conditioner.

なおリテーナには、複数の縦フィン及び複数の横フィンなどがそれぞれ揺動可能に設けられるのが一般的であり、その構造は従来と同様とすることができ特に制限されない。   The retainer is generally provided with a plurality of vertical fins and a plurality of horizontal fins so as to be able to swing, and the structure thereof can be the same as that of the conventional one and is not particularly limited.

ダンパプレートはリテーナ内に揺動可能に軸支されて空気流路を開閉する部材であり、リテーナの空気流路の断面形状に応じた形状を有している。またノブは、リテーナの例えば吹出開口の近傍に回動可能に設けられている。   The damper plate is a member that is pivotally supported in the retainer to open and close the air flow path, and has a shape corresponding to the cross-sectional shape of the air flow path of the retainer. Further, the knob is rotatably provided in the vicinity of, for example, the blowout opening of the retainer.

リンク機構は、互いに噛合する少なくとも第１歯車及び第２歯車を含むものである。第１歯車又は第２歯車をそれぞれノブ又はダンパプレートの枢支軸と一体に形成してもよいが、その場合はノブの回動方向とダンパプレートの揺動方向とが逆になるため、好ましくない。したがって歯車は奇数個用いることが望ましい。   The link mechanism includes at least a first gear and a second gear that mesh with each other. The first gear or the second gear may be formed integrally with the pivot shaft of the knob or the damper plate, respectively, but in this case, the rotation direction of the knob and the swinging direction of the damper plate are reversed. Absent. Therefore, it is desirable to use an odd number of gears.

リンク機構を構成する歯車の少なくとも一つは、径方向に弾性変形可能に形成されている。このようにするには、歯車の少なくとも一つを中抜きの枠状に形成すればよい。また弾性変形可能に形成する歯車は、第１歯車あるいは第２歯車でもよいし、他の歯車でもよい。３個以上の複数個の歯車からリンク機構を構成する場合、第１歯車と第２歯車とは互いに噛合する二つの歯車であれば、その順序あるいは位置の制約はない。   At least one of the gears constituting the link mechanism is formed to be elastically deformable in the radial direction. To do this, at least one of the gears may be formed in a hollow frame shape. The gear formed to be elastically deformable may be the first gear or the second gear, or may be another gear. In the case where the link mechanism is constituted by a plurality of three or more gears, there is no restriction on the order or position as long as the first gear and the second gear are two gears meshing with each other.

また第１小歯溝部及び第２小歯溝部の深さは、正規の歯溝より浅ければよいが、正規の歯溝の30〜50％の深さとするのが好ましい。第１小歯溝部及び第２小歯溝部の深さがこの範囲を外れると、荷重が低すぎて節度感が不十分となったり、荷重が高すぎて操作性が低下する場合がある。   The depths of the first and second small tooth grooves may be shallower than the normal tooth groove, but preferably 30 to 50% of the normal tooth groove. If the depth of the first small tooth groove portion and the second small tooth groove portion is out of this range, the load may be too low and the feeling of moderation may be insufficient, or the load may be too high and the operability may deteriorate.

なお第１小歯溝部を形成せず、それに代えて一対の第２小歯溝部の間にある中間歯部の歯高を正規の歯高より高くしても、本発明と同様の作用効果が奏される。しかしながらこの場合には、中間歯部が他の歯部より外方へ突出しているため、破損あるいは摩耗の恐れがある。また中間歯部と噛合する歯部の設計が困難となる場合もあるので、本発明のように第１小歯溝部を形成することが望ましい。   Even if the first small tooth gap portion is not formed and instead the tooth height of the intermediate tooth portion between the pair of second small tooth groove portions is made higher than the normal tooth height, the same effect as the present invention can be obtained. Played. However, in this case, since the intermediate tooth portion protrudes outward from the other tooth portions, there is a risk of breakage or wear. Further, since it may be difficult to design the tooth portion that meshes with the intermediate tooth portion, it is desirable to form the first small tooth groove portion as in the present invention.

以下、実施例及び比較例により本発明を具体的に説明する。   Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples.

（実施例）
図１に本実施例のレジスタの分解斜視図を示す。このレジスタは自動車用のレジスタであり、基本的に従来のレジスタと同様の構成であって、全て樹脂から形成されている。このレジスタは、空気流路及び吹出開口10をもつ筒状のリテーナ１と、リテーナ１内に揺動自在に配置されたダンパプレート２と、ダンパプレート２を揺動させるためのノブ３と、ノブ３の回動をダンパプレート２の揺動に変換する中間ギア４及びシャットギア５と、から主として構成されている。 (Example)
FIG. 1 is an exploded perspective view of the register of this embodiment. This register is an automobile register, and basically has the same configuration as a conventional register, and is entirely made of resin. This register includes a cylindrical retainer 1 having an air flow path and a blow-off opening 10, a damper plate 2 that is swingably disposed in the retainer 1, a knob 3 for swinging the damper plate 2, and a knob. 3 is mainly composed of an intermediate gear 4 and a shut gear 5 that convert the rotation of the shaft 3 into the swing of the damper plate 2.

ダンパプレート２は板状に形成され、中心に揺動軸20を有している。この揺動軸20がリテーナ１の上下壁に枢支されている。またダンパプレート２の周端面には、リテーナ１の壁面に弾接してシールするためのスポンジ体21が保持されている。   The damper plate 2 is formed in a plate shape and has a swing shaft 20 at the center. The swing shaft 20 is pivotally supported on the upper and lower walls of the retainer 1. Further, a sponge body 21 is held on the peripheral end surface of the damper plate 2 for elastically contacting and sealing the wall surface of the retainer 1.

リテーナ１の先端開口には、吹出開口10を形成するベゼル11が固定されている。先端開口とその奥方には、互いに平行な複数の水平風向偏向板12と、図示しない垂直風向偏向板とが揺動可能に設けられ、調節ノブ13を操作してリテーナ１に対する角度を可変することで送風方向を可変可能となっている。   A bezel 11 that forms a blowout opening 10 is fixed to the front end opening of the retainer 1. A plurality of horizontal wind direction deflecting plates 12 parallel to each other and a vertical wind direction deflecting plate (not shown) are swingably provided at the tip opening and in the back thereof, and the angle with respect to the retainer 1 is varied by operating the adjustment knob 13. The air blowing direction can be varied.

リテーナ１の底部背面には、吹出開口10の近傍にノブ３が枢支されている。ノブ３は、ベゼル11に形成されたノブ用開口14から前方へ一部が突出して操作可能とされ、ノブ３の後部にはノブギア30が形成されている。   A knob 3 is pivotally supported in the vicinity of the blowout opening 10 on the bottom rear surface of the retainer 1. The knob 3 can be operated by protruding partly forward from a knob opening 14 formed in the bezel 11, and a knob gear 30 is formed at the rear part of the knob 3.

リテーナ１の底部背面には中間ギア４が回動自在に枢支され、中間ギア４はノブギア30と噛合している。この中間ギア４は、図２に拡大して示すように、外周歯部40と、内側ハブ41と、外周歯部40と内側ハブ41とを連結する４本の曲がりスポーク42と、からなる。曲がりスポーク42は弾性変形可能であるため、外周歯部40は径方向に弾性変形可能となっている。中間ギア４の外周歯部40の一つの歯溝には、正規の歯溝の40％の深さで浅い第１小歯溝部43が形成されている。   An intermediate gear 4 is pivotally supported on the rear surface of the bottom of the retainer 1, and the intermediate gear 4 meshes with the knob gear 30. As shown in an enlarged view in FIG. 2, the intermediate gear 4 includes an outer peripheral tooth portion 40, an inner hub 41, and four bent spokes 42 that connect the outer peripheral tooth portion 40 and the inner hub 41. Since the bent spoke 42 is elastically deformable, the outer peripheral tooth portion 40 is elastically deformable in the radial direction. In one tooth groove of the outer peripheral tooth portion 40 of the intermediate gear 4, a shallow first small tooth groove portion 43 is formed at a depth of 40% of a normal tooth groove.

ダンパプレート２の下部の揺動軸20は、リテーナ１の底壁を貫通してリテーナ１の底部背面側へ突出し、その突出端に扇形状のシャットギア５が固定されている。シャットギア５には、平面部をもつ係合孔50が形成され、揺動軸20の先端に形成された平面部をもつ係合部22と係合している。すなわちシャットギア５は、ダンパプレート２の揺動に伴って回動する。このシャットギア５は、中間ギア４と噛合している。また図３に拡大して示すように、シャットギア５の隣接する一対の歯溝には、正規の歯溝の40％の深さで浅い第２小歯溝部51，52が形成されている。   The swing shaft 20 at the lower part of the damper plate 2 passes through the bottom wall of the retainer 1 and protrudes toward the bottom rear side of the retainer 1, and a fan-shaped shut gear 5 is fixed to the protruding end. The shut gear 5 is formed with an engagement hole 50 having a flat portion, and is engaged with an engagement portion 22 having a flat portion formed at the tip of the swing shaft 20. That is, the shut gear 5 rotates as the damper plate 2 swings. The shut gear 5 meshes with the intermediate gear 4. Further, as shown in an enlarged view in FIG. 3, in the pair of adjacent tooth spaces of the shut gear 5, second small tooth spaces 51 and 52 that are shallow at a depth of 40% of the normal tooth spaces are formed.

ノブ用開口14から突出するノブ３を一方向へ回動させると、中間ギア４が逆方向へ回動し、さらにシャットギア５がノブ３と同一方向に回動して、ダンパプレート２がノブ３の回動と同一方向へ揺動する。すなわちノブ３、中間ギア４及びシャットギア５でリンク機構が構成されている。   When the knob 3 protruding from the knob opening 14 is rotated in one direction, the intermediate gear 4 is rotated in the opposite direction, the shut gear 5 is rotated in the same direction as the knob 3, and the damper plate 2 is turned into the knob. 3 swings in the same direction as the rotation of 3. That is, the knob 3, the intermediate gear 4, and the shut gear 5 constitute a link mechanism.

上記のように形成された本実施例の空調用レジスタでは、吹出開口10からの風の吹き出しを停止する場合には、ノブ用開口14から突出するノブ３を一方向へ回動させる。するとダンパプレート２がリテーナ１の空気流路を閉じる直前において、図４に示すように中間ギア４の第１小歯溝部43に隣接する一方の先行歯部44が第２小歯溝部52に係合し、それによって中間ギア４が径方向に弾性変形する。これにより操作者には、ノブ３を介して荷重が知覚される。   In the air-conditioning register of the present embodiment formed as described above, when the blowout of the wind from the blowout opening 10 is stopped, the knob 3 protruding from the knob opening 14 is rotated in one direction. Then, immediately before the damper plate 2 closes the air flow path of the retainer 1, one leading tooth portion 44 adjacent to the first small tooth groove portion 43 of the intermediate gear 4 is engaged with the second small tooth groove portion 52 as shown in FIG. Accordingly, the intermediate gear 4 is elastically deformed in the radial direction. As a result, the load is perceived by the operator via the knob 3.

次いで図５に示すように、シャットギア５の第２小歯溝部51，52で挟まれた一つの中間歯部53が中間ギア４の第１小歯溝部43に係合し、中間ギア４の弾性変形が継続する。さらに図６に示すように、中間ギア４の第１小歯溝部43に隣接する他方の後行歯部45が第２小歯溝部51に係合し、中間ギア４の弾性変形がさらに継続する。その後、後行歯部45と第２小歯溝部51との係合が解除されることで、中間ギア４の弾性変形が解除され、操作者にはノブ３を介して荷重の解放が知覚される。この時点でダンパプレート２が空気流路を全閉状態とするように、各歯部及び小歯溝部の位置が設定されている。   Next, as shown in FIG. 5, one intermediate tooth portion 53 sandwiched between the second small tooth groove portions 51 and 52 of the shut gear 5 engages with the first small tooth groove portion 43 of the intermediate gear 4, and Elastic deformation continues. Further, as shown in FIG. 6, the other trailing tooth portion 45 adjacent to the first small tooth groove portion 43 of the intermediate gear 4 engages with the second small tooth groove portion 51, and the elastic deformation of the intermediate gear 4 further continues. . Thereafter, the engagement between the trailing tooth portion 45 and the second small tooth groove portion 51 is released, so that the elastic deformation of the intermediate gear 4 is released, and the operator perceives the release of the load via the knob 3. The At this time, the positions of the tooth portions and the small tooth groove portions are set so that the damper plate 2 fully closes the air flow path.

本実施例のレジスタについて、ダンパプレート２が空気流路を開いた状態から全閉状態となる間のノブ３に作用する荷重を測定した。すなわちノブ３の操作表面に釘を固定し、ノブ３を一方向（シャット方向）へ回転させたときの荷重を測定した。結果を図７に示す。   For the resistor of this example, the load acting on the knob 3 was measured while the damper plate 2 was in the fully closed state from the state in which the air flow path was opened. That is, a nail was fixed to the operation surface of the knob 3, and the load when the knob 3 was rotated in one direction (shut direction) was measured. The results are shown in FIG.

（比較例）
中間ギア４の外周歯部40に浅い第１小歯溝部43を形成しなかったこと以外は実施例１と同様の構成であるレジスタを比較例とし、実施例と同様に荷重を測定した結果を図７に示す。 (Comparative example)
A register having the same configuration as in Example 1 except that the shallow first small groove portion 43 was not formed in the outer peripheral tooth portion 40 of the intermediate gear 4 was used as a comparative example, and the results of measuring the load in the same manner as in the example were obtained. As shown in FIG.

＜評価＞
図７から明らかなように、比較例のレジスタでは二つの山が認められ、荷重の発生と解放による節度感が２回知覚される。しかし実施例のレジスタによれば、山が一つであるので、荷重の発生と解放による節度感は１回のみ知覚され、操作性に優れている。 <Evaluation>
As is clear from FIG. 7, two peaks are recognized in the register of the comparative example, and the sense of moderation due to the generation and release of the load is perceived twice. However, according to the register of the embodiment, since there is one mountain, the moderation feeling due to the generation and release of the load is perceived only once and is excellent in operability.

また図７からわかるように、実施例のレジスタでは山の登りから下りまでのノブ３の回転幅が広い。また山の範囲では、継続して発生する中間ギア４の弾性反力によって各ギアが静止することがない。したがって揺動角度の広い範囲でダンパプレートが静止するのを回避できるため、笛音状の異音の発生を防止することが可能となる。   Further, as can be seen from FIG. 7, in the register of the embodiment, the rotation width of the knob 3 from the mountain climbing to the mountain descending is wide. In the mountain range, the gears do not stop due to the elastic reaction force of the intermediate gear 4 that is continuously generated. Therefore, the damper plate can be prevented from standing still in a wide range of swinging angles, so that it is possible to prevent the generation of whistle-like noise.

さらに第１小歯溝部43及び第２小歯溝部51，52を形成する金型においては、従来用いている金型の歯溝成形部の先端を切削加工するだけでよい。したがって金型を新たに製作する必要がないので、金型製作のコストを低減することができる。   Further, in the mold for forming the first small tooth groove portion 43 and the second small tooth groove portion 51, 52, it is only necessary to cut the tip of the tooth groove forming portion of the conventionally used die. Therefore, since it is not necessary to manufacture a new mold, the cost of manufacturing the mold can be reduced.

本発明の一実施例に係る空調用レジスタの分解斜視図である。It is a disassembled perspective view of the air-conditioning register | resistor which concerns on one Example of this invention. 本発明の一実施例に係る空調用レジスタに用いた中間ギアの平面図である。It is a top view of the intermediate gear used for the register for air conditioning concerning one example of the present invention. 本発明の一実施例に係る空調用レジスタに用いたシャットギアの平面図である。It is a top view of the shut gear used for the air-conditioning register | resistor which concerns on one Example of this invention. 本発明の一実施例に係る空調用レジスタにおける中間ギアとシャットギアの噛合状態を示す説明図である。It is explanatory drawing which shows the meshing state of the intermediate | middle gear and shut gear in the air-conditioning register | resistor which concerns on one Example of this invention. 本発明の一実施例に係る空調用レジスタにおける中間ギアとシャットギアの噛合状態を示す説明図である。It is explanatory drawing which shows the meshing state of the intermediate | middle gear and shut gear in the air-conditioning register | resistor which concerns on one Example of this invention. 本発明の一実施例に係る空調用レジスタにおける中間ギアとシャットギアの噛合状態を示す説明図である。It is explanatory drawing which shows the meshing state of the intermediate | middle gear and shut gear in the air-conditioning register | resistor which concerns on one Example of this invention. 変位と荷重の関係を示すグラフである。It is a graph which shows the relationship between a displacement and a load.

符号の説明Explanation of symbols

１：リテーナ ２：ダンパプレート ３：ノブ
４：中間ギア ５：シャットギア 11：ベゼル
20：揺動軸 30：ノブギア 42：曲がりスポーク
43：第１小歯溝部 44：先行歯部 45：後行歯部
51：第２小歯溝部 52：第２小歯溝部 53：中間歯部 1: Retainer 2: Damper plate 3: Knob 4: Intermediate gear 5: Shut gear 11: Bezel
20: Oscillating shaft 30: Knob gear 42: Bent spoke
43: First small tooth gap 44: Leading tooth 45: Trailing tooth
51: Second small groove portion 52: Second small groove portion 53: Intermediate tooth portion

Claims (2)

吹出開口と空気流路を形成する筒状のリテーナと、該リテーナ内に揺動可能に軸支されたダンパプレートと、該リテーナに回動可能に設けられたノブと、互いに噛合する少なくとも第１歯車及び第２歯車を含むリンク機構と、を含み、該リンク機構によって該ノブの回動を該ダンパプレートの揺動に変換することで該ダンパプレートが揺動して該空気流路を開閉する空調用レジスタであって、
該リンク機構を構成する歯車の少なくとも一つは径方向に弾性変形可能に形成され、
該第１歯車の一つの歯溝には正規の歯溝より浅い第１小歯溝部が形成され、
該第２歯車の隣接する一対の歯溝には正規の歯溝より浅い第２小歯溝部が形成され、
該ダンパプレートの少なくとも全閉時に該第１歯車と該第２歯車とが噛合する際、該第１歯車の該第１小歯溝部に隣接する一方の先行歯部が該第２小歯溝部に噛合し、次いで該第２歯車の一対の該第２小歯溝部の間にある中間歯部が該第１小歯溝部に噛合し、さらに該第１歯車の該第１小歯溝部に隣接する他方の後行歯部が該第２小歯溝部に噛合することを特徴とする空調用レジスタ。 A cylindrical retainer that forms a blow-off opening and an air flow path, a damper plate that is pivotally supported in the retainer, and a knob that is pivotally provided in the retainer, and at least a first that meshes with each other. A link mechanism including a gear and a second gear, and the rotation of the knob is converted into the swing of the damper plate by the link mechanism, whereby the damper plate swings to open and close the air flow path. An air conditioning register,
At least one of the gears constituting the link mechanism is formed to be elastically deformable in the radial direction,
A first small groove portion shallower than a normal tooth groove is formed in one tooth groove of the first gear,
A pair of adjacent tooth spaces of the second gear is formed with second small tooth spaces shallower than normal tooth spaces,
When the first gear and the second gear mesh with each other when the damper plate is at least fully closed, one leading tooth portion adjacent to the first small tooth groove portion of the first gear becomes the second small tooth groove portion. An intermediate tooth portion between the pair of second small tooth groove portions of the second gear meshes with the first small tooth groove portion, and further adjacent to the first small tooth groove portion of the first gear. An air-conditioning register, wherein the other trailing tooth portion meshes with the second small tooth groove portion. 前記第１小歯溝部の歯溝は、前記第２小歯溝部の歯溝より浅い請求項１に記載の空調用レジスタ。   The air conditioning register according to claim 1, wherein a tooth groove of the first small tooth groove portion is shallower than a tooth groove of the second small tooth groove portion.
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JP3486733B2 (en) * 1999-10-28 2004-01-13 豊和化成株式会社 Air blowing adjustment register
JP2004225869A (en) * 2003-01-27 2004-08-12 Toyoda Gosei Co Ltd Power transmission mechanism and air conditioning register using the same
JP2005098362A (en) * 2003-09-24 2005-04-14 Denso Corp Gear mechanism and air-conditioner for vehicle

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JPH10250348A (en) * 1997-03-07 1998-09-22 Calsonic Corp Door mechanism of automobile air conditioner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3486733B2 (en) * 1999-10-28 2004-01-13 豊和化成株式会社 Air blowing adjustment register
JP2004225869A (en) * 2003-01-27 2004-08-12 Toyoda Gosei Co Ltd Power transmission mechanism and air conditioning register using the same
JP2005098362A (en) * 2003-09-24 2005-04-14 Denso Corp Gear mechanism and air-conditioner for vehicle

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