JP2535101Y2 - Auto tensioner - Google Patents
Auto tensionerInfo
- Publication number
- JP2535101Y2 JP2535101Y2 JP1991090941U JP9094191U JP2535101Y2 JP 2535101 Y2 JP2535101 Y2 JP 2535101Y2 JP 1991090941 U JP1991090941 U JP 1991090941U JP 9094191 U JP9094191 U JP 9094191U JP 2535101 Y2 JP2535101 Y2 JP 2535101Y2
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- bowl
- tensioner
- small
- auto
- 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
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、ベルト駆動機構におい
てベルトに適切な張力を付与するオートテンショナーに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic tensioner for applying an appropriate tension to a belt in a belt driving mechanism.
【０００２】[0002]
【従来の技術】駆動プーリと従動プーリの間に伝動ベル
トが巻き掛けられ、伝動ベルトを介して動力を伝動する
動力伝動機構には張力付与手段としてオートテンショナ
ーが使用されることが多い。2. Description of the Related Art In a power transmission mechanism in which a power transmission belt is wound around a drive pulley and a driven pulley, and power is transmitted via the power transmission belt, an auto tensioner is often used as tension applying means.
【０００３】オートテンショナーの一般的構造は、固定
部材、テンションアーム、アイドラープーリ、ばね等よ
り成る。固定部材は更にテンショナー軸を有し、エンジ
ン等にオートテンショナーを固定する部材であり、テン
ションアームはアイドラープーリーが回転可能に固定さ
れており、固定部材とテンションアームはいずれも碗状
部を持ち両碗状部が向き合った状態でテンションアーム
がテンショナー軸に揺動可能に支承されている。両碗状
部によって形成される空間内には予めねじり力が加えら
れたねじりコイルばねが装着され、このねじりコイルば
ねは両端がそれぞれ固定部材とテンションアームに係止
されており、テンションアームを常時一定の方向へ付勢
する。[0003] The general structure of an auto tensioner is composed of a fixing member, a tension arm, an idler pulley, a spring and the like. The fixing member further has a tensioner shaft, and is a member for fixing the auto tensioner to an engine or the like.The tension arm has an idler pulley fixed rotatably. Both the fixing member and the tension arm have a bowl-shaped portion and have both ends. The tension arm is swingably supported on the tensioner shaft with the bowl-shaped portions facing each other. A torsion coil spring to which a torsion force is applied in advance is mounted in the space formed by the two bowl-shaped portions, and both ends of the torsion coil spring are locked by a fixing member and a tension arm, respectively. Energize in a certain direction.
【０００４】そして、オートテンショナーの固定部材を
エンジン等に固定し、アイドラープーリをベルトに当接
することによりベルトに所定の張力を与えることが出来
るものである（実開昭６３−９２８５７号他）。Then, a fixed member of the auto tensioner is fixed to an engine or the like, and a predetermined tension can be applied to the belt by bringing an idler pulley into contact with the belt (Japanese Utility Model Laid-Open No. 63-92857, etc.).
【０００５】[0005]
【考案が解決しようとする課題】ところで、従来技術の
オートテンショナーは固定部材とテンションアームの夫
々の碗状部の間には何の加工もされず、隙間が開いたま
まであった。そのため、この隙間から水が入り内部に錆
が発生することがあった。However, in the prior art auto tensioner, no processing is performed between the fixing member and the respective bowl-shaped portions of the tension arm, and the gap remains open. Therefore, water may enter through the gap and rust may be generated inside.
【０００６】特に近年、自動車の補機駆動の分野におい
て従来多数のベルトを使用していた構成に変えて、ただ
一つの長尺のベルトをもって伝動し、補機の取付けスペ
ースの小形化を図る、所謂サーペンティンドライブ駆動
システム（米国特許第４、０２８、９５５）が注目を集
め、この駆動システムにオートテンショナーが使用され
ることが多いが、自動車は雨天走行時や洗車時に水が侵
入する機会が多いため大きな問題であった。Particularly, in recent years, in the field of accessory driving of automobiles, instead of a configuration using a large number of belts in the past, power is transmitted by using only one long belt, and the space for mounting the accessory is reduced. The so-called serpentine drive drive system (U.S. Pat. No. 4,028,955) has attracted attention, and although an auto tensioner is often used in this drive system, automobiles often have a chance of entering water when running on rainy weather or when washing the car. It was a big problem.
【０００７】更にサーペンティン駆動システムではベル
トに発生する振動を早期に収斂させるためにオートテン
ショナーには各種のブレーキ機能を有するものが多い
（特開平１−２６１５４９号公報他）。この種のオート
テンショナーは内部、特にブレレーキの中に水が侵入す
るとブレーキが滑り全くその機能を発揮し得なくなって
しまう特有の問題があった。Further, in a serpentine drive system, many auto-tensioners have various braking functions in order to converge the vibration generated on the belt at an early stage (Japanese Patent Application Laid-Open No. 1-261549, etc.). This type of auto-tensioner has a specific problem that when water enters the interior, particularly the rake, the brake slips and cannot perform its function at all.
【０００８】また、ブレーキの微小な隙間に錆が発生し
た場合は、ブレーキが固着しテンションアームが動かな
くなってしまうことがあった。そこで、本考案は従来技
術の有する上記問題点に着目し、水の侵入を防止し、自
動車用のオートテンショナーとしても安心して使用する
ことができるオートテンショナーを提供することを目的
とする。Further, when rust is generated in a minute gap of the brake, the brake may be stuck and the tension arm may not move. In view of the above, the present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to provide an auto-tensioner that can prevent water from intruding and can be used as an auto-tensioner for automobiles with security.
【０００９】[0009]
【課題を解決するための手段】そして、上記する目的を
達成するための本考案の特徴は、他部材へオートテンシ
ョナーを固定する固定部材は、碗状部Ａを有するととも
に、該碗状部Ａの中心にテンショナー軸が固定され、テ
ンショナー軸には同じく碗状部Ｂを有するテンションア
ームが碗状部Ａ、Ｂが相互に向き合った状態で揺動可能
に固定され碗状部Ａ、Ｂによって形成される空間内に
は、テンションアームを一定回転方向に付勢すべくねじ
りスプリングが挿入され、更にテンションアームの一端
にはアイドラープーリが回転可能に固定されたオートテ
ンショナーにおいて、碗状部Ａ又はＢの一方の端部は、
内周面が大径になるべく肉抜きされた大径重合面を有
し、他方の端部は外周面が小径になるべく肉抜きされた
小径重合面を有し、両重合面は大径重合面の先端が小径
重合面の後端と隙間を有する状態で重ね合わせれて、断
面形状が段状の重合空間を形成し重合空間内に小径部と
大径部を有する段付矩形断面の環状であって硬質樹脂製
の防水スリーブが、その小径部が大径重合面と小径重合
面の間に位置し、大径部が大径重合面の先端と小径重合
面の後端の間に位置する状態で、装着されているオート
テンショナーにある。A feature of the present invention for achieving the above object is that a fixing member for fixing an auto tensioner to another member has a bowl-shaped portion A and the bowl-shaped portion A A tensioner shaft is fixed to the center of the arm, and a tension arm, which also has a bowl-shaped portion B, is fixed to the tensioner shaft so that the bowl-shaped portions A and B can swing in a state of facing each other, and is formed by the bowl-shaped portions A and B. A torsion spring is inserted into the space where the tension arm is urged in a fixed rotation direction, and an idler pulley is rotatably fixed to one end of the tension arm. One end of
The inner peripheral surface has a large-diameter overlapped surface that is lightened to have a large diameter, the other end has a small-diameter overlapped surface that is lightened so that the outer peripheral surface has a small diameter, and both overlapped surfaces are large-diameter overlapped surfaces Is overlapped with the rear end of the small-diameter overlapped surface with a gap to form a polymerization space having a stepped cross-section, and has a stepped rectangular cross-section having a small-diameter portion and a large-diameter portion in the polymerization space. The hard resin waterproof sleeve has its small diameter part located between the large diameter overlapping surface and the small diameter overlapping surface, and the large diameter part located between the leading end of the large diameter overlapping surface and the rear end of the small diameter overlapping surface. In the installed auto tensioner.
【００１０】本考案のオートテンショナーは碗状部Ａと
Ｂの大径重合面と小径重合面は重ね合わされて断面形状
が段状の重合空間が形成されるため、雨水その他の水
は、段の部分によって遮られ、内部へ侵入しにくくな
る。また本考案では、この段状の重合空間にこの空間と
略同一の硬質樹脂製防水スリーブが挿入されているた
め、防水スリーブによって碗状部Ａ、Ｂによって形成さ
れる空間は、完全に外界と遮断されるため水の侵入は全
く防止される。In the auto-tensioner of the present invention, the large-diameter superimposed surface and the small-diameter superimposed surface of the bowl-shaped portions A and B are overlapped to form a superimposed space having a stepped cross-sectional shape. It is blocked by the part, making it difficult to enter the inside. Further, in the present invention, since the hard resin waterproof sleeve which is substantially the same as this space is inserted into this stepped polymerization space, the space formed by the bowl-shaped portions A and B by the waterproof sleeve is completely in contact with the outside world. Because it is shut off, water intrusion is completely prevented.
【００１１】[0011]
【実施例】以下更に、本考案の具体的実施例について説
明する。図１は、本考案の具体的実施例におけるオート
テンショナーの断面図である。図２は図１の円Ｍ内の拡
大図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below. FIG. 1 is a sectional view of an automatic tensioner according to a specific embodiment of the present invention. FIG. 2 is an enlarged view inside a circle M in FIG.
【００１２】図において１は、本考案のオートテンショ
ナーを示す。オートテンショナー１はエンジン等の他部
材２に固定するための取付座となる固定部材３、テンシ
ョンアーム４、ねじりスプリング５、アイドラープリー
６、摩擦リング８およびバンド９等によって構成され
る。順次説明すると、固定部材３はアルミダイカストに
よって成型されたものであり、碗状部（Ａ）１０の中央
にテンショナー軸１１が一体的に固定されたものであ
る。FIG. 1 shows an automatic tensioner 1 according to the present invention. The auto-tensioner 1 includes a fixing member 3, which serves as a mounting seat for fixing to another member 2 such as an engine, a tension arm 4, a torsion spring 5, an idler pulley 6, a friction ring 8, a band 9, and the like. Explaining one by one, the fixing member 3 is formed by die-casting aluminum, and the tensioner shaft 11 is integrally fixed to the center of the bowl-shaped portion (A) 10.
【００１３】即ち、碗状部（Ａ）１０は、円板状の取付
座部１２の端部周囲に辺部１３が壁状に設けられ、全体
が碗形をなす。テンショナー軸１１は、取付ボルト１５
が挿入される貫通孔１６を有し、取付座部１２に垂直に
立設された軸であり、先端部は玉軸受１７が装着される
べく切欠き１８が設けられている。テンションアーム４
は同じくアルミダイカストによって成形され外形が碗状
に形成された碗状部（Ｂ）２０とアーム２１が一体に結
合されたものである。碗状部（Ｂ）２０の中央は玉軸受
１７を介してテンショナー軸１１に揺動可能に支承され
るように軸受けの受け部２４が形成されていると共に、
奥側には筒状部２５が設けられている。一方、テンショ
ンアーム４のアーム部２１は板状であり、碗状部（Ｂ）
２０の一端より延設され先端にアイドラープーリ６が回
転可能に固定されている。That is, the bowl-shaped part (A) 10 has a wall 13 around the end of the disk-shaped mounting seat 12 and has a bowl-like shape as a whole. The tensioner shaft 11 is provided with a mounting bolt 15
The shaft has a through hole 16 into which the ball bearing 17 is inserted. The shaft is vertically provided upright on the mounting seat 12, and a notch 18 is provided at a tip end thereof so that a ball bearing 17 can be mounted. Tension arm 4
Is an integrally formed bowl-shaped portion (B) 20 and an arm 21 which are also formed by aluminum die-casting and have a bowl-shaped outer shape. The center of the bowl-shaped portion (B) 20 is formed with a bearing receiving portion 24 so as to be swingably supported by the tensioner shaft 11 via the ball bearing 17.
A tubular portion 25 is provided on the back side. On the other hand, the arm portion 21 of the tension arm 4 has a plate shape, and is a bowl-shaped portion (B).
An idler pulley 6 is rotatably fixed to the distal end of the motor 20 at one end.
【００１４】本実施例においてはアイドラープーリ６は
テンションアーム４の碗状部（Ｂ）２０より前方へ迫り
出した位置に取り付けられアイドラープーリ６の中心線
は、碗状部（Ｂ）２０の玉受軸１７の中心線と一致しな
い。そのため、テンションアーム４の碗状部（Ｂ）２０
には玉軸受８を中心としたモーメント力が発生する。ア
イドラープーリ６及びその固定手段は公知のものと何ら
異なるものではないので詳細説明は略する。In this embodiment, the idler pulley 6 is mounted at a position protruding forward from the bowl-shaped portion (B) 20 of the tension arm 4 and the center line of the idler pulley 6 is the ball of the bowl-shaped portion (B) 20. It does not coincide with the center line of the receiving shaft 17. Therefore, the bowl-shaped portion (B) 20 of the tension arm 4
Generates a moment force about the ball bearing 8. Since the idler pulley 6 and its fixing means are not different from known ones, a detailed description thereof will be omitted.
【００１５】ねじりスプリング５はテンションアーム４
に回転力を付与するものである。本実施例ではねじりコ
イルばね５の素線の断面形状は長方形であり、よりコン
パクト化が図られているが、もちろん断面円形のもので
もよい。摩擦リング８は厚さが２ｍｍ〜５ｍｍ程度の環
状体であり、キャストナイロンを素材とするものであ
る。The torsion spring 5 includes a tension arm 4
To impart rotational force to the motor. In the present embodiment, the cross-sectional shape of the element wire of the torsion coil spring 5 is rectangular, which is more compact, but may be of course circular. The friction ring 8 is a ring having a thickness of about 2 mm to 5 mm.
It is made of cast nylon.
【００１６】本実施例のオートテンショナー１は固定部
材３とテンションアーム４の碗状部（Ａ）１０、（Ｂ）
２０が相互に向き合った状態でテンションアーム４が玉
軸受１７を介してテンショナー軸１１に揺動可能に固定
されている。そして碗状部（Ａ）１０、（Ｂ）２０によ
って形成される空間２７内にねじりスプリング５がその
両端がそれぞれ固定部材３とテンションアーム４に係止
され、数キログラムの力で巻き締められた状態で装着さ
れている。The automatic tensioner 1 according to the present embodiment has a bowl-shaped portion (A) 10 of the fixing member 3 and the tension arm 4, (B).
The tension arm 4 is swingably fixed to the tensioner shaft 11 via the ball bearing 17 in a state where the members 20 face each other. In the space 27 formed by the bowl-shaped portions (A) 10 and (B) 20, both ends of the torsion spring 5 are locked by the fixing member 3 and the tension arm 4, respectively, and are tightened by a force of several kilograms. It is mounted in a state.
【００１７】尚、図示しないが固定部材３とテンション
アーム４は相互に回転角度を一定量に制限する係合爪を
有し、一定回転角を越える自由回転は許さない。従っ
て、テンションアーム４はねじりスプリング５が巻き緩
む方向に常時付勢されている。テンションアーム４の筒
状部２５とテンショナー軸１１の間には摩擦リング８が
挿入されている。Although not shown, the fixing member 3 and the tension arm 4 have engaging claws for limiting the rotation angle to each other to a fixed amount, and do not allow free rotation exceeding a certain rotation angle. Therefore, the tension arm 4 is constantly urged in the direction in which the torsion spring 5 is loosened. A friction ring 8 is inserted between the cylindrical portion 25 of the tension arm 4 and the tensioner shaft 11.
【００１８】そして、本考案の最も特徴的な構成として
碗状部（Ａ）１０、（Ｂ）２０の端部が重ね合わされ、
その間に断面形状が段状の重合空間３０が形成されてい
る。この部分を詳細に説明すると、碗状部（Ａ）１０の
先端部は全周にわたって外周面が段状に肉抜きされ小径
に加工され、小径重合面３１が形成されている。The most characteristic configuration of the present invention is that the ends of the bowl-shaped portions (A) 10 and (B) 20 are overlapped,
In the meantime, a polymerization space 30 having a stepped cross section is formed. Explaining this portion in detail, the distal end portion of the bowl-shaped portion (A) 10 is formed so that the outer peripheral surface is stepped into a small thickness over the entire circumference and is processed into a small diameter to form a small-diameter overlapped surface 31.
【００１９】この小径重合面３１の巾方向の長さは約１
１ｍｍ程度である。一方碗状部（Ｂ）２０は先端部の内
周面が全周にわたって段状に肉抜きされ大径に加工され
て大径重合面３２が形成されている。ここで、大径重合
面３２の直径は小径重合面３１の直径よりも大きい。The length in the width direction of the small diameter overlapping surface 31 is about 1
It is about 1 mm. On the other hand, the bowl-shaped portion (B) 20 has a large-diameter overlapped surface 32 formed by cutting the inner peripheral surface of the distal end portion into a stepped shape over the entire circumference and processing it into a large diameter. Here, the diameter of the large-diameter overlapping surface 32 is larger than the diameter of the small-diameter overlapping surface 31.
【００２０】また大径重合面の巾方向の長さは約８ｍｍ
程度である。本実施例においては、２つの重合面は大径
重合面３２の先端３３が小径重合面３１の後端３４との
間で隙間３５を有する状態で重ね合わされており、両重
合面の間には段状の重合空間３０が形成されている。The length of the large-diameter superposed surface in the width direction is about 8 mm.
It is about. In this embodiment, the two overlapping surfaces are overlapped with the leading end 33 of the large-diameter overlapping surface 32 having a gap 35 between the rear end 34 of the small-diameter overlapping surface 31. A step-like polymerization space 30 is formed.
【００２１】そしてこの重合空間３０内には、防水スリ
ーブ３６が装着されている。防水スリーブ３６は、ウレ
タン、ナイロンその他の硬質樹脂より成り、重合空間に
合わせてその断面形状は段状であり、小径部３７と大径
部３８を有する段付矩形断面の環状である。A waterproof sleeve 36 is mounted in the polymerization space 30. The waterproof sleeve 36 is made of urethane, nylon, or other hard resin, has a stepped cross-sectional shape in accordance with the polymerization space, and has a stepped rectangular cross-section having a small-diameter portion 37 and a large-diameter portion 38.
【００２２】そして防水スリーブ３６は小径部３７が大
径重合面３２と小径重合面３１の間に位置し、大径部３
８が大径重合面３２の先端３３と小径重合面３１の後端
３４の間に位置する状態で段状の重合空間に装着されて
いる。The waterproof sleeve 36 has a small-diameter portion 37 located between the large-diameter overlapping surface 32 and the small-diameter overlapping surface 31, and the large-diameter portion 3.
8 is mounted in the step-shaped overlapping space in a state where it is located between the front end 33 of the large-diameter overlapping surface 32 and the rear end 34 of the small-diameter overlapping surface 31.
【００２３】防水スリーブの厚さは、小径部は大径重合
面３２と小径重合面３１の間の厚さに等しい。また、大
径部３８の厚さは、小径重合面３１の切欠量に等しく、
従って防水スリーブ３６を重合空間に装着した時、碗状
部（Ａ）１０、碗状部（Ｂ）２０、および防水スリーブ
３６の外表面は同一平面状に配される。The thickness of the waterproof sleeve in the small diameter portion is equal to the thickness between the large diameter overlapping surface 32 and the small diameter overlapping surface 31. Further, the thickness of the large diameter portion 38 is equal to the notch amount of the small diameter overlapped surface 31,
Therefore, when the waterproof sleeve 36 is mounted in the overlap space, the outer surfaces of the bowl-shaped part (A) 10, the bowl-shaped part (B) 20, and the waterproof sleeve 36 are arranged in the same plane.
【００２４】本実施例においては、スリーブの巾方向の
長さは、段状の重合空間３０の全長よりも、小径部３７
に相当する部分および大径部３８に相当する部分のいず
れも短い。そのため、防水スリーブ３６は重合空間３０
に装着された時、その両端と碗状部（Ａ）の小径重合面
の後端３４の間および大径重合面の後端３９の間に隙間
が存在する。この隙間は、主として組立上の寸法公差の
にげのために設けられたものであり、なくても特に支障
はない。In this embodiment, the length of the sleeve in the width direction is smaller than the entire length of the stepped polymerization space 30 by the smaller diameter portion 37.
And the portion corresponding to the large diameter portion 38 are both short. Therefore, the waterproof sleeve 36 is
When mounted on the rear surface, there is a gap between both ends thereof and the rear end 34 of the small diameter overlapping surface of the bowl-shaped portion (A) and between the rear end 39 of the large diameter overlapping surface. The gap is provided mainly for the purpose of assembling the dimensional tolerance in assembling, and there is no particular problem even if it is not provided.
【００２５】[0025]
【効果】本考案のオートテンショナーは、碗状部Ａ、Ｂ
のそれぞれの端部が肉抜部を有し両端部が重ね合わされ
て断面形状が段状の重合空間を形成するため雨水等の水
がこの段状の部分によって遮られ、内部に侵入しにくい
効果がある。また、本考案はこの段状の重合空間にこの
重合空間の形状にほぼ合致する小径部と大径部を有する
段付矩形断面の環状の硬質樹脂製の防水スリーブが装着
されているため、碗状部Ａ、Ｂによって形成され、スプ
リング等の主要部品が入っている空間は外界と完全に遮
断される。そのため水の侵入は更に完全に遮断され内部
の錆や老化が防止され、長期間にわたって初期の性能を
維持することができる効果がある。[Effects] The auto tensioner of the present invention has bowl-shaped portions A and B
Each end has a hollow portion and both ends are overlapped to form a stepped polymerization space with a cross-sectional shape, so that water such as rainwater is blocked by this stepped portion and it is difficult for it to enter the inside There is. In addition, in the present invention, a water-resistant sleeve made of a rigid resin having a stepped rectangular cross section and having a small-diameter portion and a large-diameter portion that almost matches the shape of the polymerization space is attached to the step-shaped polymerization space. The space formed by the shape parts A and B and containing the main components such as springs is completely shut off from the outside. Therefore, intrusion of water is further completely blocked, rust and aging inside are prevented, and there is an effect that initial performance can be maintained for a long period of time.
【図１】本考案の具体的実施例におけるオートテンショ
ナーの断面図FIG. 1 is a sectional view of an automatic tensioner according to a specific embodiment of the present invention.
【図２】図１の円Ｍ内の拡大図FIG. 2 is an enlarged view of a circle M in FIG. 1;
１ オートテンショナー ２ 他部材 ３ 固定部材 ４ テンションアーム ５ ねじりコイルばね ６ アイドラープーリ ８ 摩擦リング １０ 碗状部（Ａ） １１ テンショナー軸 ２０ 碗状部（Ｂ） ２５ 筒状部 REFERENCE SIGNS LIST 1 auto tensioner 2 other member 3 fixing member 4 tension arm 5 torsion coil spring 6 idler pulley 8 friction ring 10 bowl-shaped part (A) 11 tensioner shaft 20 bowl-shaped part (B) 25 cylindrical part
Claims (1)
固定部材は、碗状部Ａを有するとともに、該碗状部Ａの
中心にテンショナー軸が固定され、テンショナー軸には
同じく碗状部Ｂを有するテンションアームが碗状部Ａ、
Ｂが相互に向き合った状態で揺動可能に固定され碗状部
Ａ、Ｂによって形成される空間内にはテンションアーム
を一定回転方向に付勢すべくねじりスプリングが挿入さ
れ、更にテンションアームの一端にはアイドラープーリ
が回転可能に固定されたオートテンショナーにおいて、
碗状部Ａ又はＢの一方の端部は、内周面が大径になるべ
く肉抜きされた大径重合面を有し、他方の端部は外周面
が小径になるべく肉抜きされた小径重合面を有し、両重
合面は、大径重合面の先端が小径重合面の後端と隙間を
有する状態で重ね合わされて断面形状が段状の重合空間
を形成し重合空間内に小径部と大径部を有する段付矩形
断面の環状であって硬質樹脂製の防水スリーブが、その
小径部が大径重合面と小径重合面の間に位置し、大径部
が大径重合面の先端と小径重合面の後端の間に位置する
状態で装着されていることを特徴とするオートテンショ
ナー。1. A fixing member for fixing an auto tensioner to another member has a bowl-shaped portion A, a tensioner shaft is fixed to the center of the bowl-shaped portion A, and the tensioner shaft also has a bowl-shaped portion B. The tension arm is bowl-shaped part A,
A torsion spring is inserted into a space formed by the bowl-shaped portions A and B so that the tension arm is urged in a fixed rotation direction, and one end of the tension arm is further fixed. In the auto tensioner where the idler pulley is rotatably fixed,
One end of the bowl-shaped portion A or B has a large-diameter overlapped surface whose inner peripheral surface is lightened to have a large diameter, and the other end has a small-diameter overlapped lightening whose outer peripheral surface is reduced in diameter. Both polymerization surfaces have a small-diameter portion in the polymerization space, with the leading end of the large-diameter polymerization surface being overlapped with the rear end of the small-diameter polymerization surface with a gap therebetween to form a step-like polymerization space. An annular, rigid resin waterproof sleeve having a stepped rectangular cross section having a large diameter portion, the small diameter portion of which is located between the large diameter overlapping surface and the small diameter overlapping surface, and the large diameter portion being the tip of the large diameter overlapping surface. An auto-tensioner, wherein the auto-tensioner is mounted so as to be located between the rear end of the small-diameter overlapping surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991090941U JP2535101Y2 (en) | 1991-10-09 | 1991-10-09 | Auto tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991090941U JP2535101Y2 (en) | 1991-10-09 | 1991-10-09 | Auto tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0532856U JPH0532856U (en) | 1993-04-30 |
| JP2535101Y2 true JP2535101Y2 (en) | 1997-05-07 |
Family
ID=14012484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991090941U Expired - Fee Related JP2535101Y2 (en) | 1991-10-09 | 1991-10-09 | Auto tensioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535101Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3968722B2 (en) | 2004-08-03 | 2007-08-29 | 船井電機株式会社 | Image forming apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3011154U (en) * | 1994-11-15 | 1995-05-16 | 株式会社ヤマデ | Rise from the floor of the building |
-
1991
- 1991-10-09 JP JP1991090941U patent/JP2535101Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0532856U (en) | 1993-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6857979B2 (en) | Combination belt tensioner and idler | |
| US5131889A (en) | Automotive engine accessory drive tensioner | |
| JP2543341B2 (en) | Belt tensioning device | |
| US5598913A (en) | One-way over-running clutch pulley | |
| US7004865B2 (en) | Tensioning means for traction mechanisms, especially belt tensioning means | |
| JP3364873B2 (en) | Electronically controlled throttle valve device for internal combustion engine | |
| US6416435B1 (en) | Belt tensioner | |
| EP1169199B1 (en) | Reversible tensioner | |
| CA2508101A1 (en) | Transmission system combining an internal combustion engine and an alternator-starter | |
| US5256113A (en) | Automotive accessory drive belt tensioner | |
| KR20070047791A (en) | Centre of rotation support for an assembly | |
| JP2535101Y2 (en) | Auto tensioner | |
| EP0477174B1 (en) | Belt tensioner | |
| EP1357286A2 (en) | Engine control unit | |
| JPH1089427A (en) | Lever arm for auto tensioner | |
| JP6584303B2 (en) | Auto tensioner | |
| JPH0653509B2 (en) | Rear wheel support device for cantilever type vehicle | |
| JPH08310466A (en) | Tail lamp device for bicycle | |
| KR0112950Y1 (en) | Pedal | |
| JPH06173832A (en) | Motor-bicycle engine | |
| JP4230171B2 (en) | Packing | |
| JPS63130928A (en) | Electromagnetic clutch soundproofing device | |
| WO2024134549A1 (en) | Tensioner for an accessory drive of a motor vehicle and accessory drive including such a tensioner | |
| FR2585012A1 (en) | Device for winching vehicles | |
| JPS6332443Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |