JPH06207641A - Pulley damper device - Google Patents
Pulley damper deviceInfo
- Publication number
- JPH06207641A JPH06207641A JP3391493A JP3391493A JPH06207641A JP H06207641 A JPH06207641 A JP H06207641A JP 3391493 A JP3391493 A JP 3391493A JP 3391493 A JP3391493 A JP 3391493A JP H06207641 A JPH06207641 A JP H06207641A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- peripheral surface
- inertial body
- outer peripheral
- hub
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H2055/366—Pulleys with means providing resilience or vibration damping
Landscapes
- Pulleys (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両用ディーゼルエン
ジンのクランク軸等の回転軸に装着されて同回転軸の捩
り振動を制振すると共に、ベルト等の巻掛伝動部材を介
して他の回転軸を駆動するプーリダンパ装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mounted on a rotary shaft such as a crankshaft of a diesel engine for a vehicle to suppress torsional vibration of the rotary shaft, and also to prevent other vibrations through a winding transmission member such as a belt. The present invention relates to a pulley damper device that drives a rotating shaft.
【０００２】[0002]
【従来の技術】従来、車両用ディーゼルエンジンのクラ
ンク軸に装着されて同クランク軸の捩り振動を制御する
と共に、ベルトを介してタイミングギヤ等他の回転軸を
駆動するように設けられているプーリダンパの典型的な
構造を、図３の断面図について説明する。2. Description of the Related Art Conventionally, a pulley damper mounted on a crankshaft of a vehicle diesel engine to control torsional vibration of the crankshaft and drive other rotating shafts such as a timing gear via a belt. A typical structure will be described with reference to the sectional view of FIG.
【０００３】図中符号１０は総括的にプーリダンパを示
し、同ダンパは、図示しないディーゼルエンジンのクラ
ンク軸に固着されて同回転軸と一体に回転するプーリハ
ブ１２と、同プーリハブ１２の外側に筒状のゴム部材１
４を介して同心的に配設されたプーリ慣性体１６とを具
えている。Reference numeral 10 in the figure generally indicates a pulley damper, which is fixed to a crankshaft of a diesel engine (not shown) and rotates integrally with the rotary hub, and a cylindrical shape outside the pulley hub 12. Rubber member 1
4 and a pulley inertial body 16 concentrically arranged via
【０００４】同筒状ゴム部材１４は、上記プーリハブ１
２の外周面１８と、プーリ慣性体１６の内周面２０との
間に形成された環状空所内に、自由状態における形状が
円筒状をなしているゴム部材を軸線方向に圧入して介装
されている。また、上記筒状ゴム部材１４が、プーリダ
ンパ１０の稼働中、軸線方向に抜け出すことを防止する
ために、プーリハブ１２の外周面１８には、軸線方向の
中央部分に半径方向外方に突出した小径の円弧状回転面
２２が形成されると共に、プーリ慣性体１６の内周面２
０には、上記円弧状回転面２２に実質的に相似した形状
の半径方向外方に凹入した円弧状回転面２４が形成され
ている。（なお、上記円弧状回転面２２及び２４以外の
プーリハブ外周面１８及びプーリ慣性体内周面２０は、
夫々単純な円筒面である。）The tubular rubber member 14 is the pulley hub 1 described above.
The rubber member having a cylindrical shape in the free state is press-fitted in the axial direction into the annular space formed between the outer peripheral surface 18 of the second embodiment and the inner peripheral surface 20 of the pulley inertial body 16. Has been done. Further, in order to prevent the tubular rubber member 14 from slipping out in the axial direction during operation of the pulley damper 10, the outer peripheral surface 18 of the pulley hub 12 has a small diameter projecting radially outward at a central portion in the axial direction. And the inner peripheral surface 2 of the pulley inertial body 16 is formed.
At 0, a circular arc-shaped rotary surface 24 is formed, which is substantially similar to the circular arc-shaped rotary surface 22 and is recessed radially outward. (In addition, the pulley hub outer peripheral surface 18 and the pulley inertial body inner peripheral surface 20 other than the arcuate rotation surfaces 22 and 24 are
Each is a simple cylindrical surface. )
【０００５】更に、上記プーリ慣性体１６の外周面に
は、１個以上（図示の場合は３個）のベルト溝２６が形
成されており、同ベルト溝２６に捲装された図示しない
ベルトを介してタイミングギヤ軸その他適宜の回転軸が
駆動される。Further, one or more (three in the case shown) belt grooves 26 are formed on the outer peripheral surface of the pulley inertial body 16, and a belt (not shown) wound around the belt grooves 26 is formed. The timing gear shaft and other appropriate rotary shafts are driven via the shaft.
【０００６】上記従来のプーリダンパでは、長期間の稼
働によって上記円弧状回転面２２及び２４の変曲点に接
する筒状ゴム部材１４の変曲部分２８に応力集中に起因
する亀裂が発生してやがて断裂し、その両側の円筒状部
分３０が軸線方向外方に抜け出す危険性が大きいことが
判明した。In the above-mentioned conventional pulley damper, cracks due to stress concentration occur in the inflection portion 28 of the cylindrical rubber member 14 in contact with the inflection points of the arcuate rotary surfaces 22 and 24 due to long-term operation. It was found that there was a high risk of fracture and the cylindrical portions 30 on both sides thereof coming out axially outward.
【０００７】万一、上記のように筒状ゴム部材１４の円
筒状部分３０が軸線方向外方に抜け出すと、ゴム部分の
減少により当然に制振機能が低減すると共に、残ったゴ
ム部分のトルク負荷が大巾に増加するので、残存ゴム部
分も急速に破損する不具合がある。Should the cylindrical portion 30 of the tubular rubber member 14 slip out in the axial direction as described above, the damping function is naturally reduced due to the reduction of the rubber portion, and the torque of the remaining rubber portion is reduced. Since the load greatly increases, there is a problem that the residual rubber part is also rapidly damaged.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、上記事情に
鑑み創案されたもので、上記プーリハブとプーリ慣性体
との間に圧入される筒状ゴム部材の破損を効果的に防止
することによって、プーリダンパの耐久性及び信頼性を
向上することを目的とするものである。SUMMARY OF THE INVENTION The present invention was devised in view of the above circumstances, and effectively prevents damage to the tubular rubber member press-fitted between the pulley hub and the pulley inertial body. The purpose is to improve the durability and reliability of the pulley damper.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、回転軸に固着されるプーリハブ、同プー
リハブの外側に同心的に配設されたプーリ慣性体、及び
上記プーリハブの外周面とプーリ慣性体の内周面との間
の環状空所内に圧入された筒状ゴム部材を具備したもの
において、上記プーリハブの外周面が、上記回転軸の軸
線の周りに、半径方向外方に凸の大径の円弧状曲線を回
転させて形成される回転面から構成されると共に、上記
プーリ慣性体の内周面が、軸線方向両端部分を除く中間
部分を、上記プーリハブの外周面に略等間隔を存して対
向する円弧状回転面から形成され、かつ上記軸線方向両
端部分を、上記回転軸の周りに半径方向外方に凹の円弧
状曲線を回転させて形成されると共に上記中央部分の円
弧状回転面と円滑に接続する円弧状回転面から形成され
たことを特徴とするプーリダンパ装置（以下第１発明と
いう）、及び回転軸に固着されるプーリハブ、同プーリ
ハブの外側に同心的に配設されたプーリ慣性体、及び上
記プーリハブの外周面とプーリ慣性体の内周面との間の
環状空所内に圧入された筒状ゴム部材を具備したものに
おいて、上記プーリ慣性体の内周面が、上記回転軸の軸
線の周りに、半径方向外方に凹の大径の円弧状曲線を回
転させて形成される回転面から構成されると共に、上記
プーリハブの外周面が、軸線方向両端部分を除く中間部
分を、上記プーリ慣性体の内周面に略等間隔を存して対
向する円弧状回転面から形成され、かつ上記軸線方向両
端部分を、上記回転軸の周りに半径方向外方に凸の円弧
状曲線を回転させて形成されると共に、上記中間部分の
円弧状回転面と円滑に接続する円弧状回転面から形成さ
れたことを特徴とするプーリダンパ装置（以下第２発明
という）を提案するものである。In order to achieve the above object, the present invention provides a pulley hub fixed to a rotating shaft, a pulley inertia body concentrically arranged outside the pulley hub, and an outer circumference of the pulley hub. A cylindrical rubber member press-fitted in an annular space between the surface and the inner peripheral surface of the pulley inertial body, wherein the outer peripheral surface of the pulley hub is radially outward about the axis of the rotating shaft. It is composed of a rotating surface formed by rotating a large-diameter arc-shaped curve convex to the inner peripheral surface of the pulley inertial body, and an intermediate portion excluding both axial end portions on the outer peripheral surface of the pulley hub. It is formed from arcuate rotary surfaces facing each other at substantially equal intervals, and both end portions in the axial direction are formed by rotating arcuate curves concave outward in the radial direction around the rotary shaft. Smooth circular arc surface in the center A pulley damper device (hereinafter referred to as a first invention), which is formed from an arcuate rotating surface to be connected, a pulley hub fixed to a rotating shaft, a pulley inertial body concentrically arranged outside the pulley hub, And a cylindrical rubber member press-fitted into an annular space between the outer peripheral surface of the pulley hub and the inner peripheral surface of the pulley inertial body, wherein the inner peripheral surface of the pulley inertial body is the axis of the rotating shaft. And an outer peripheral surface of the pulley hub, the outer peripheral surface of which is formed by rotating a large-diameter arc-shaped curve that is concave outward in the radial direction. An inner peripheral surface of the pulley inertial body is formed from arcuate rotary surfaces facing each other at substantially equal intervals, and both end portions in the axial direction are curved arcuately curved outward in the radial direction around the rotary shaft. When formed by rotating And it proposes a Puridanpa device (hereinafter referred to as second invention), characterized in that it is formed from arcuate surface of revolution smoothly connected to the arc-shaped rotating surface of the intermediate portion.
【００１０】[0010]
【実施例】以下第１発明の実施例を図１の断面図につい
て具体的に説明する。（なお、図３を参照して説明した
従前のプーリダンパと実質的に同一の部材及び部分には
同一の符号を付し、重複にわたる説明は省略する。）図
示のように、プーリハブ１２には、その外周面１８の実
質的全部が、半径方向外方に凸の大きい半径Ｒ１の円弧
をプーリハブ軸線即ち回転軸の軸線Ｏ−Ｏの周りに回転
させて形成される回転面から構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the first invention will be specifically described below with reference to the sectional view of FIG. (Note that substantially the same members and portions as those of the conventional pulley damper described with reference to FIG. 3 are denoted by the same reference numerals, and overlapping description will be omitted.) As illustrated, the pulley hub 12 includes: Substantially all of the outer peripheral surface 18 is composed of a rotating surface formed by rotating an arc having a large radius R 1 which is convex outward in the radial direction around the pulley hub axis, that is, the axis O-O of the rotating shaft. .
【００１１】一方、上記外周面１８に対向するプーリ慣
性体１６の内周面２０は、その軸線方向の両端部分を除
く中間部分が、上記半径Ｒ１の円弧と同一中心の大きい
半径Ｒ２の円弧を上記回転軸軸線Ｏ−Ｏの周りに回転さ
せて形成される回転面３２から構成されている。従っ
て、上記プーリハブ外周面１８とプーリ慣性体内周面２
０との間には、軸線方向両端部の僅かな部分を除き殆ど
全表面にわたり等間隔のビヤ樽形又は太鼓形の隙間が形
成される。On the other hand, the inner peripheral surface 20 of the pulley inertial body 16 facing the outer peripheral surface 18 has a large radius R 2 whose center portion is the same center as the arc of the radius R 1 except for both axial end portions thereof. It is composed of a rotating surface 32 formed by rotating an arc around the rotation axis OO. Therefore, the pulley hub outer peripheral surface 18 and the pulley inertial inner peripheral surface 2
Between 0 and 0, a via-barrel-shaped or drum-shaped gap is formed at substantially equal intervals over almost the entire surface except for a small portion at both ends in the axial direction.
【００１２】また、上記プーリ慣性体内周面２０の軸線
方向両端部分は、半径方向外方に凹の十分大きな半径Ｒ
３の円弧を上記回転軸軸線Ｏ−Ｏの周りに回転させて形
成される拡開した回転面３４から形成されており、同回
転面３４は上記中間部分の回転面３２に円滑に接続す
る。この拡開する回転面３４を設けたことによって、自
由状態における形状が円筒状をなす筒状ゴム部材１４
を、プーリハブ外周面１８とプーリ慣性体内周面２０と
の間の環状空所内に軸線方向に圧入する際に、ゴム部材
の端部が容易かつ円滑に進入することができる広い導入
口が形成されることとなる。Further, both end portions in the axial direction of the pulley inertial body inner peripheral surface 20 have a sufficiently large radius R which is concave outward in the radial direction.
It is formed by an expanded rotary surface 34 formed by rotating the circular arc 3 around the rotary shaft axis line OO, and the rotary surface 34 is smoothly connected to the rotary surface 32 of the intermediate portion. By providing the expanding rotary surface 34, the cylindrical rubber member 14 having a cylindrical shape in the free state.
When the shaft is press-fitted in the annular space between the pulley hub outer peripheral surface 18 and the pulley inertial body peripheral surface 20 in the axial direction, a wide introduction port is formed so that the end of the rubber member can easily and smoothly enter. The Rukoto.
【００１３】上記構成によれば、プーリハブ１２とプー
リ慣性体１６との間に圧入された筒状ゴム部材１４が、
軸線方向の両端部分を除く殆どすべての部分で大きい半
径の円弧回転面に沿いゆるやかにわん曲し、しかもこの
殆どの部分で略均等な厚さを有するので、軸線方向中間
部分に応力集中が起こることがなく、長期間にわたり亀
裂等が発生せず、十分な耐久性を確保することができ
る。According to the above construction, the cylindrical rubber member 14 press-fitted between the pulley hub 12 and the pulley inertial body 16 is
Almost all parts except the both ends in the axial direction are gently curved along the arcuate surface of rotation with a large radius, and most of the parts have a substantially uniform thickness, so stress concentration occurs in the intermediate part in the axial direction. It is possible to secure sufficient durability without causing cracks or the like over a long period of time.
【００１４】また、プーリ慣性体内周面２０の軸線方向
両端部分では、半径方向外方に凹の拡開した円弧回転面
３４が形成されて、中間部分の半径方向外方に凸の円弧
回転面３２と円滑に接続するので、軸線方向両端部分の
筒状ゴム部材１４にも応力集中が起こることがなく、長
期間にわたり亀裂等が発生せず、十分な耐久性を確保す
ることができる。Further, at both axial end portions of the pulley inertial body inner peripheral surface 20, a circular arc rotating surface 34 is formed which is concave outward in the radial direction, and an arc rotating surface convex outward in the radial direction of the intermediate portion. Since it is smoothly connected to 32, stress concentration does not occur in the tubular rubber members 14 at both ends in the axial direction, cracks and the like do not occur for a long period of time, and sufficient durability can be secured.
【００１５】次に、第２発明の実施例を図２について具
体的に説明する。図示のように、プーリ慣性体１６の内
周面２０は、その実質的全部が、半径方向外方に凹の大
きい半径Ｒ′１の円弧を回転軸軸線Ｏ−Ｏの周りに回転
させて形成される回転面から構成されている。Next, an embodiment of the second invention will be concretely described with reference to FIG. As shown, the inner circumferential surface 20 of the pulley inertial body 16, the substantially all of, and a concave large radius R '1 of the arc radially outwardly rotate about the axis of rotation axis O-O formation It is composed of a rotating surface.
【００１６】他方、上記プーリ慣性体内の内周面２０に
対向するプーリハブ１２の外周面１８は、その軸線方向
の両端部分を除く中間部分が、上記半径Ｒ′１の円弧と
同一中心の大きい半径Ｒ′２の円弧を上記回転軸軸線Ｏ
−Ｏの周りに回転させて形成される回転面３２′から構
成されている。従って、上記プーリハブ外周面１８とプ
ーリ慣性体１６の内周面２０との間には、軸線方向両端
部の僅かな部分を除き殆ど全表面にわたり実質的に等間
隔のつづみ形をなす隙間が形成される。[0016] On the other hand, the outer peripheral surface 18 of the pulley hub 12 facing the pulley inertial body of the inner peripheral surface 20, the intermediate portion excluding the both end portions of the axial direction is greater radius of the circular arc of the same center of the radius R '1 R 'the rotary shaft 2 of the arc axis O
It is composed of a rotating surface 32 'formed by rotating around -O. Therefore, between the outer peripheral surface 18 of the pulley hub and the inner peripheral surface 20 of the inertial body 16 of the pulley, there is a gap having a substantially zigzag shape over substantially the entire surface except for a small portion at both ends in the axial direction. It is formed.
【００１７】また、上記プーリハブ外周面１８の軸線方
向両端部分は、半径方向外方に凸の十分大きな半径Ｒ′
３の円弧を、上記回転軸軸線Ｏ−Ｏの周りに回転させて
形成される回転面３４′から形成されており、同回転面
は上記中間部分の回転面３２′に円滑に接続する。この
回転面３２′と、上記プーリ慣性体１６の内周面２０の
軸線方向端部分とによって、軸線方向外方に拡開した導
入口が形成され、従って自由状態における形状が円筒状
をなす筒状ゴム部材１４を、プーリハブ外周面１８とプ
ーリ慣性体内周面２０との間の環状空所内に、軸線方向
に圧入する際に、ゴム部材１４を傷つけることなく、作
業を円滑かつ迅速容易に行なうことができる。Further, both ends in the axial direction of the outer peripheral surface 18 of the pulley hub have a sufficiently large radius R'which is convex outward in the radial direction.
The circular arc 3 is formed by a rotary surface 34 'formed by rotating the arc about the axis of rotation OO, and the rotary surface smoothly connects to the rotary surface 32' of the intermediate portion. This rotating surface 32 'and the axial end portion of the inner peripheral surface 20 of the pulley inertial body 16 form an inlet opening that expands outward in the axial direction, so that the cylindrical shape in the free state is a cylinder. When the rubber member 14 is axially press-fitted into the annular space between the outer peripheral surface 18 of the pulley hub and the inner peripheral surface 20 of the inertial body of the pulley, the work is smoothly and quickly performed without damaging the rubber member 14. be able to.
【００１８】上記第２発明の構成によれば、前記第１発
明と実質的に同様に、長期間にわたり筒状ゴム部材１４
の破損を防止し、耐久性及び信頼性を向上することがで
きることが明らかである。According to the structure of the second invention, substantially the same as the first invention, the tubular rubber member 14 is provided for a long period of time.
It is obvious that damage to the can be prevented and durability and reliability can be improved.
【００１９】なお、上記第１及び第２発明の実施例で
は、プーリハブ外周面１８及びプーリ慣性体内周面２０
が、すべて円弧回転面から形成されているが、これらを
円弧に近似した楕円等ゆるやかな曲線の回転面で代替し
得ることは明らかであり、両者を包含してこの明細書で
は、円弧状回転面と表現されている。In the embodiments of the first and the second inventions, the outer peripheral surface 18 of the pulley hub and the inner peripheral surface 20 of the pulley inertial body.
However, it is obvious that they can be replaced by a rotating surface having a gentle curve such as an ellipse that approximates an arc, and in this specification, the arc-shaped rotating surface is included. It is described as a face.
【００２０】[0020]
【発明の効果】叙上のように、回転軸に固着されるプー
リハブ、同プーリハブの外側に同心的に配設されたプー
リ慣性体、及び上記プーリハブの外周面とプーリ慣性体
の内周面との間の環状空所内に圧入された筒状ゴム部材
を具備したものにおいて、上記プーリハブの外周面が、
上記回転軸の軸線の周りに、半径方向外方に凸の大径の
円弧状曲線を回転させて形成される回転面から構成され
ると共に、上記プーリ慣性体の内周面が、軸線方向両端
部分を除く中間部分を、上記プーリハブの外周面に略等
間隔を存して対向する円弧状回転面から形成され、かつ
上記軸線方向両端部分を、上記回転軸の周りに半径方向
外方に凹の円弧状曲線を回転させて形成されると共に上
記中央部分の円弧状回転面と円滑に接続する円弧状回転
面から形成されたことを特徴とする第１発明に係るプー
リダンパ装置、及び回転軸に固着されるプーリハブ、同
プーリハブの外側に同心的に配設されたプーリ慣性体、
及び上記プーリハブの外周面とプーリ慣性体の内周面と
の間の環状空所内に圧入された筒状ゴム部材を具備した
ものにおいて、上記プーリ慣性体の内周面が、上記回転
軸の軸線の周りに、半径方向外方に凹の大径の円弧状曲
線を回転させて形成される回転面から構成されると共
に、上記プーリハブの外周面が、軸線方向両端部分を除
く中間部分を、上記プーリ慣性体の内周面に略等間隔を
存して対向する円弧状回転面から形成され、かつ上記軸
線方向両端部分を、上記回転軸の周りに半径方向外方に
凸の円弧状曲線を回転させて形成されると共に、上記中
間部分の円弧状回転面と円滑に接続する円弧状回転面か
ら形成されたことを特徴とする第２発明に係るプーリダ
ンパ装置により、従来の同種装置に較べ耐久性及び信頼
性を著しく向上することができるので、産業上有益であ
る。As described above, the pulley hub fixed to the rotary shaft, the pulley inertial body concentrically arranged outside the pulley hub, and the outer peripheral surface of the pulley hub and the inner peripheral surface of the pulley inertial body. In the one provided with a tubular rubber member press-fitted in the annular space between the outer peripheral surface of the pulley hub,
Around the axis of the rotation shaft, the rotation surface is formed by rotating a large-diameter arc-shaped curve that is convex outward in the radial direction, and the inner peripheral surface of the pulley inertial body has both ends in the axial direction. The intermediate portion excluding the portion is formed by arcuate rotary surfaces that face the outer peripheral surface of the pulley hub at substantially equal intervals, and both axial end portions of the rotary hub are concave outward in the radial direction around the rotary shaft. A pulley damper device according to a first aspect of the present invention, and a rotary shaft, which are formed by rotating an arcuate curved surface of the above-mentioned curve and are formed by an arcuate rotational surface smoothly connected to the arcuate rotational surface of the central portion. A fixed pulley hub, a pulley inertial body concentrically arranged outside the pulley hub,
And a cylindrical rubber member press-fitted into an annular space between the outer peripheral surface of the pulley hub and the inner peripheral surface of the pulley inertial body, wherein the inner peripheral surface of the pulley inertial body is the axis of the rotating shaft. And an outer peripheral surface of the pulley hub, the outer peripheral surface of which is formed by rotating a large-diameter arc-shaped curve that is concave outward in the radial direction. An inner peripheral surface of the pulley inertial body is formed from arcuate rotary surfaces facing each other at substantially equal intervals, and both end portions in the axial direction are curved arcuately curved outward in the radial direction around the rotary shaft. The pulley damper device according to the second aspect of the present invention, which is formed by rotating and is formed of an arcuate surface of revolution that is smoothly connected to the arcuate surface of revolution of the intermediate portion, is durable compared to a conventional device of the same type. Significantly improves reliability and reliability Since the door can be beneficial on the industry.
【図１】第１発明の一実施例を示す断面図である。FIG. 1 is a cross-sectional view showing an embodiment of the first invention.
【図２】第２発明の一実施例を示す断面図である。FIG. 2 is a sectional view showing an embodiment of the second invention.
【図３】従来のプーリダンパの典型的な構造を示す断面
図である。FIG. 3 is a sectional view showing a typical structure of a conventional pulley damper.
１０ プーリダンパ １２ プーリハブ １４ 筒状ゴム部材 １６ プーリ慣性体 10 Pulley Damper 12 Pulley Hub 14 Cylindrical Rubber Member 16 Pulley Inertia
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大木 和己 群馬県邑楽郡邑楽町大字赤堀字鞍掛1508番 地２号株式会社フコク内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuki Oki 1508, Kurakake, Akahori, Ora-cho, Euraku-gun, Gunma Fukukoku Co., Ltd.
Claims (2)
リハブの外側に同心的に配設されたプーリ慣性体、及び
上記プーリハブの外周面とプーリ慣性体の内周面との間
の環状空所内に圧入された筒状ゴム部材を具備したもの
において、上記プーリハブの外周面が、上記回転軸の軸
線の周りに、半径方向外方に凸の大径の円弧状曲線を回
転させて形成される回転面から構成されると共に、上記
プーリ慣性体の内周面が、軸線方向両端部分を除く中間
部分を、上記プーリハブの外周面に略等間隔を存して対
向する円弧状回転面から形成され、かつ上記軸線方向両
端部分を、上記回転軸の周りに半径方向外方に凹の円弧
状曲線を回転させて形成されると共に上記中間部分の円
弧状回転面と円滑に接続する円弧状回転面から形成され
たことを特徴とするプーリダンパ装置。1. A pulley hub fixed to a rotating shaft, a pulley inertial body concentrically arranged outside the pulley hub, and an annular space between an outer peripheral surface of the pulley hub and an inner peripheral surface of the pulley inertial body. A cylindrical rubber member press-fitted into the outer peripheral surface of the pulley hub, the outer peripheral surface of the pulley hub is formed by rotating a large-diameter arc-shaped curve convex outward in the radial direction around the axis of the rotating shaft. The inner surface of the pulley inertial body is formed of an arcuate surface of revolution, which has an intermediate portion excluding both axial end portions and is opposed to the outer peripheral surface of the pulley hub at substantially equal intervals. And both end portions in the axial direction are formed by rotating a concave arc-shaped curve outward in the radial direction around the rotation axis, and are smoothly connected to the arc-shaped rotation surface of the intermediate portion. Characterized by being formed from Pulley damper device.
リハブの外側に同心的に配設されたプーリ慣性体、及び
上記プーリハブの外周面とプーリ慣性体の内周面との間
の環状空所内に圧入された筒状ゴム部材を具備したもの
において、上記プーリ慣性体の内周面が、上記回転軸の
軸線の周りに、半径方向外方に凹の大径の円弧状曲線を
回転させて形成される回転面から構成されると共に、上
記プーリハブの外周面が、軸線方向両端部分を除く中間
部分を、上記プーリ慣性体の内周面に略等間隔を存して
対向する円弧状回転面から形成され、かつ上記軸線方向
両端部分を、上記回転軸の周りに半径方向外方に凸の円
弧状曲線を回転させて形成されると共に、上記中間部分
の円弧状回転面と円滑に接続する円弧状回転面から形成
されたことを特徴とするプーリダンパ装置。2. A pulley hub fixed to a rotary shaft, a pulley inertial body concentrically arranged outside the pulley hub, and an annular space between an outer peripheral surface of the pulley hub and an inner peripheral surface of the pulley inertial body. A cylindrical rubber member that is press-fitted to the inner peripheral surface of the pulley inertial body, by rotating a large-diameter arc-shaped curve radially outwardly around the axis of the rotating shaft. The outer peripheral surface of the pulley hub is an arcuate rotating surface that is opposed to the inner peripheral surface of the pulley inertial body at substantially equal intervals, with the outer peripheral surface of the pulley hub being formed. And both end portions in the axial direction are formed by rotating an arc-shaped curve convex outward in the radial direction around the rotation axis, and are smoothly connected to the arc-shaped rotation surface of the intermediate portion. It is characterized by being formed from an arcuate surface of revolution Pulley damper device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3391493A JPH06207641A (en) | 1993-01-11 | 1993-01-11 | Pulley damper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3391493A JPH06207641A (en) | 1993-01-11 | 1993-01-11 | Pulley damper device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06207641A true JPH06207641A (en) | 1994-07-26 |
Family
ID=12399791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3391493A Pending JPH06207641A (en) | 1993-01-11 | 1993-01-11 | Pulley damper device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06207641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015014298A (en) * | 2013-07-03 | 2015-01-22 | Nok株式会社 | Rotational fluctuation absorbing damper |
| JP2015516059A (en) * | 2012-05-03 | 2015-06-04 | デイコ アイピー ホールディングス, エルエルシーDayco Ip Holdings, Llc | Torsional vibration damper device made of elastomer with non-uniform outer shape |
-
1993
- 1993-01-11 JP JP3391493A patent/JPH06207641A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015516059A (en) * | 2012-05-03 | 2015-06-04 | デイコ アイピー ホールディングス, エルエルシーDayco Ip Holdings, Llc | Torsional vibration damper device made of elastomer with non-uniform outer shape |
| KR20200037433A (en) * | 2012-05-03 | 2020-04-08 | 데이코 아이피 홀딩스 엘엘시 | Torsional vibration damper with nonuniform elastomer profile |
| JP2015014298A (en) * | 2013-07-03 | 2015-01-22 | Nok株式会社 | Rotational fluctuation absorbing damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4664900B2 (en) | Crankshaft torque modulator | |
| US5139120A (en) | Torsional damper | |
| JPH09159006A (en) | Spring damper device of lock up clutch for torque converter | |
| JP2008101740A (en) | Spring clutch | |
| US11015696B2 (en) | Damper pulley for crankshaft | |
| JPH06207641A (en) | Pulley damper device | |
| JP3811569B2 (en) | Engine crankshaft, accessory pulley unit | |
| JPH06159440A (en) | Pulley damper device | |
| JP4314561B2 (en) | Isolation damper pulley | |
| KR20220036979A (en) | Belt Pulley Decoupler | |
| JPH0470499B2 (en) | ||
| JPS5969549A (en) | Device for restraining cam shaft vibration in internal-combustion engine | |
| JPH034847Y2 (en) | ||
| JP2605662Y2 (en) | Decoupled damper pulley | |
| JPH09317847A (en) | Drive plate for vehicle | |
| JP2000088054A (en) | Transmissive rotor fitted with damper | |
| JP2008144827A (en) | Pulley with damper | |
| JPH0544779A (en) | Torsional damper | |
| JPH0118923Y2 (en) | ||
| JPH0454343Y2 (en) | ||
| JPH0231622Y2 (en) | ||
| JPH0544600Y2 (en) | ||
| JPS5827144Y2 (en) | Cylindrical torsional damper | |
| JPH054593Y2 (en) | ||
| JPH0214682Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20000307 |