JPH0293154A - Damper pulley and manufacture thereof - Google Patents
Damper pulley and manufacture thereofInfo
- Publication number
- JPH0293154A JPH0293154A JP24441288A JP24441288A JPH0293154A JP H0293154 A JPH0293154 A JP H0293154A JP 24441288 A JP24441288 A JP 24441288A JP 24441288 A JP24441288 A JP 24441288A JP H0293154 A JPH0293154 A JP H0293154A
- Authority
- JP
- Japan
- Prior art keywords
- inertia mass
- peripheral surface
- rim
- rim portion
- elastic body
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Pulleys (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明はリム部とイナーシャマスとの間にゴム状弾性体
を介装したダンパープーリーに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a damper pulley in which a rubber-like elastic body is interposed between a rim portion and an inertia mass.
（従来の技術）
第４図はゴム状弾性体圧入方式の従来のダンパープーリ
ーを示す縦断面説明図であり、ダンパープーリー２１は
、例えば中心部に挿通孔２２ａを有するボス部２２と、
このボス部２２にウェブ部２９を介して形成されたリム
部２３と、外周部に１条の深いＶ溝２５ａと多条のＶ溝
２５ｂとを刻設したイナーシャマス２５と、ゴム状弾性
体２６とからなっている。リム部２３の外周面の中間部
には全周にわたって僅かに突出した凸部２３ａが形成さ
れており、またイナーシャマス２５の内周面の中間部に
は全周にわたって凸部２３ａと対向して凹部２５ｄが形
成されている。(Prior Art) FIG. 4 is a vertical cross-sectional explanatory view showing a conventional damper pulley using a rubber-like elastic material press-fit method.
A rim portion 23 formed on the boss portion 22 via a web portion 29, an inertia mass 25 having one deep V groove 25a and multiple V grooves 25b carved on the outer periphery, and a rubber-like elastic body. It consists of 26. A convex portion 23a that slightly protrudes over the entire circumference is formed at the intermediate portion of the outer peripheral surface of the rim portion 23, and a convex portion 23a that slightly protrudes over the entire circumference is formed at the intermediate portion of the inner peripheral surface of the inertia mass 25, facing the convex portion 23a over the entire circumference. A recessed portion 25d is formed.
このように形成されたリム部２３の外周面とイナーシャ
マス２５の内周面との間にリング状に形成されたゴム状
弾性体２６が圧入されている。A ring-shaped rubber-like elastic body 26 is press-fitted between the outer circumferential surface of the rim portion 23 thus formed and the inner circumferential surface of the inertia mass 25.
（発明が解決しようとする課題）
しかし、上記従来の圧入方式によりゴム状弾性体２６を
組み付（プたダンパープーリー２１ではゴム状弾性体２
６が疲労した場合、このゴム状弾性体２６が凸部２３ａ
および凹部２５ｂをのりこえて外方に抜り出し、これに
よりイナーシャマス２５が脱落することがある。(Problem to be Solved by the Invention) However, the rubber-like elastic body 26 is assembled by the conventional press-fitting method (in the damper pulley 21, the rubber-like elastic body 26
6 is fatigued, this rubber-like elastic body 26 becomes convex portion 23a.
In some cases, the inertia mass 25 may slip over the recess 25b and be pulled out to the outside.
本発明の目的は、ゴム状弾性体が抜り出ないようにした
ダンパープーリーおよびその製造方法を提供することに
ある。An object of the present invention is to provide a damper pulley that prevents the rubber-like elastic body from coming out, and a method for manufacturing the damper pulley.
［発明の構成コ
番
（課題解決するだめの手段）
上記目的を達成するために、本発明は、リング状に形成
されたリム部と、このリム部と所定の間隔をおいて半径
方向外側に同心的に配置されたイナーシャマスと、この
イナーシャマスの内周面と前記リム部の外周面との間に
介装されたゴム状弾性体とを備え、前記リム部の外周部
分に周方向に沿って凸部を形成し、この凸部の最大外径
が前記イナーシャマスの内周面の直径以上に設定された
ことを特徴とするものである。また本発明は、金属製円
板の外周部に塑性加工によりリム部を形成し、ついで、
このリム部の外周而と所定の間隔をおいてイナーシャマ
メを配置し、ついで、このイナーシャマスの内周面と前
記リム部の外周面とにＪ：り形成された空隙部にゴム状
弾性体を介装し、ついで、前記リム部の外周部分に塑性
加工により外径が前記イナーシャマスの内周面の直径以
上に設定された凸部を周方向に沿って形成したことを特
徴とＪ“るものである。[Configuration of the Invention (Means for Solving the Problem) In order to achieve the above object, the present invention includes a rim portion formed in a ring shape, and a rim portion extending radially outwardly from the rim portion at a predetermined distance. It includes an inertia mass arranged concentrically, and a rubber-like elastic body interposed between the inner peripheral surface of the inertia mass and the outer peripheral surface of the rim portion, and A convex portion is formed along the inertia mass, and the maximum outer diameter of the convex portion is set to be larger than the diameter of the inner circumferential surface of the inertia mass. In addition, the present invention forms a rim portion on the outer periphery of a metal disc by plastic working, and then
An inertia bean is placed at a predetermined distance from the outer circumference of the rim, and then a rubber-like elastic material is placed in the gap formed between the inner circumference of the inertia mass and the outer circumference of the rim. interposed therein, and then a convex portion having an outer diameter set to be larger than the diameter of the inner circumferential surface of the inertia mass is formed along the circumferential direction by plastic working on the outer circumferential portion of the rim portion. It is something that
（作用）
−に述の構成によれば、リム部に形成された凸部の最大
外径がイナーシャマスの内周面の直径、すなわちゴム状
弾性体の外征以上に設定きれており、ゴム状弾性体が疲
労した場合でもリム部の凸部により外方に扱ｌｊ出るこ
とを阻止できる。これににつでイナーシャマスの脱落を
防止できる。(Function) According to the configuration described in -, the maximum outer diameter of the convex portion formed on the rim portion is set to be greater than the diameter of the inner circumferential surface of the inertia mass, that is, the outer diameter of the rubber-like elastic body, and the rubber Even if the shaped elastic body becomes fatigued, it can be prevented from moving outward by the convex portion of the rim portion. This can prevent the inertia mass from falling off.
（実施例） 以下、本発明を図面に示づ実施例に基いて説明する。(Example) Hereinafter, the present invention will be explained based on embodiments shown in the drawings.
第１図および第２図は本発明の第１実施例に係り、第１
図はダンパープーリーを示す縦断面説明図、第２図（ａ
）〜（ｂ）はダンパープーリーの！！／造工稈を示す説
明図である。FIG. 1 and FIG. 2 relate to a first embodiment of the present invention.
The figure is a vertical cross-sectional explanatory diagram showing the damper pulley, and Figure 2 (a
) to (b) are of the damper pulley! ! / It is an explanatory diagram showing an artificial culm.
ダンパープーリー１は、例えばボス部２と、リム部３と
、イナーシャマス５と、ゴム状弾性体６とからなってい
る。ボス部２は中心部に挿通孔２ａを有している。リム
部３は金属製円板８の外周部を折り曲げて形成されてお
り、リム部３を除く金属円板８の他の部分はウェブ部９
になっている。The damper pulley 1 includes, for example, a boss portion 2, a rim portion 3, an inertia mass 5, and a rubber-like elastic body 6. The boss portion 2 has an insertion hole 2a in the center. The rim portion 3 is formed by bending the outer peripheral portion of a metal disk 8, and the other portion of the metal disk 8 except the rim portion 3 is formed by a web portion 9.
It has become.
このウェア部９の中心にボス部２が一体的に固着されて
いる。リム部３の外周而の中間部には全周にわたって凸
部３ａが打出して形成されている。The boss portion 2 is integrally fixed to the center of the wear portion 9. A convex portion 3a is formed in a middle portion of the outer periphery of the rim portion 3 over the entire circumference.
この凸部３ａの最大外径Ｄ＋ はイナーシャマス５の内
周面の直径Ｄ２以上、すなわちＤ１≧Ｄ２に設定されて
いる。The maximum outer diameter D+ of the convex portion 3a is set to be greater than or equal to the diameter D2 of the inner peripheral surface of the inertia mass 5, that is, D1≧D2.
イナーシャマス５はリング状に形成され、その外周面に
は１条の深いＶ溝５ａと多条のＶ溝５ｂとが刻設されて
おり、また内周面の中間部には前記リム部３の凸部３ａ
と対向して全周にねたっＣ凹部５ｄが前記凸部３ａとほ
ぼ相似して形成されている。ゴム状弾性体６はリング状
または帯状に形成されでおり、リム部３の外周而とイナ
ーシャマス５の内周面との間に所定の間隔Ｃをもって形
成された空隙部に介装されている。The inertia mass 5 is formed in a ring shape, and has one deep V-groove 5a and multiple V-grooves 5b carved on its outer peripheral surface, and the rim portion 3 is formed in the middle of its inner peripheral surface. Convex portion 3a of
A concave C recess 5d is formed around the entire circumference of the convex portion 3a, facing the convex portion 3a. The rubber-like elastic body 6 is formed into a ring shape or a band shape, and is inserted into a gap formed with a predetermined distance C between the outer circumference of the rim portion 3 and the inner circumference of the inertia mass 5. .
上記のように構成されたダンパープーリー１を製造する
には、まず第２図（ａ ）に示すように、中心部に貫通
孔８ａを形成した金属製円板８の外周部を折り曲げてリ
ム部３とウェブ部９とを形成し、貫通孔８ａにボス部２
を挿入してウェブ部９に固着する。この工程においてリ
ム部３の外径Ｄ３は、第１図に示す−完成品であるダン
パープーリ＝１のリム部３の外径Ｄ４より小さく設定さ
れている。In order to manufacture the damper pulley 1 configured as described above, first, as shown in FIG. 3 and the web portion 9, and the boss portion 2 is formed in the through hole 8a.
is inserted and fixed to the web portion 9. In this step, the outer diameter D3 of the rim portion 3 is set smaller than the outer diameter D4 of the rim portion 3 of the damper pulley 1 which is a completed product shown in FIG.
続いて第２図（ｂ ）に示ずように外周面にモノＶ溝５
ａおよびポリＶ溝５ｂを形成し、内周面に四部５ｄを全
周にわたって形成したリング状のイナーシャマス５をリ
ム部３の外周面と対向して所定の間隙Ｃ＋ （Ｃ＋
＞Ｃ）をもって組合わせた後、リム部３の外周面とイナ
ーシャマス５の内周面とにより形成された空隙部にリン
グ状の未圧縮ゴム状弾性体６Δを挿入する。続いて第２
図（Ｃ）に示すように、外周面の中間部に四部５ｄと相
似した凸部１０ａが全周にわたって形成され、かつリム
部３とほぼ同じ長さの成形ローラ１０をリム部３の内周
面に凸部１０ａがイナーシャマス５の四部５ｄと対向す
るように、かつリム部３の内周面に当接させて配置する
。続いて第２図（ｄ ）に示ずＪ：うに、リム部３と成
形ローラ１０とを矢印Ａの方向に周期回転させながら成
形ローラ１０をゴム状弾性体６側に向って矢印巳の方向
に押圧する。この押圧作用によってリム部３に凸部３ａ
が形成されると共にゴム状弾性体６が圧縮される。この
圧縮作用はリム部３の凸部３ａの最大外径Ｄ１がイナー
シャマス５の内周面の直径Ｄ２以上になり、また間隔が
Ｃに達するまで続ける。これによって本発明のダンパー
プーリー１が完成する。Next, as shown in Fig. 2(b), a mono V groove 5 is formed on the outer peripheral surface.
A ring-shaped inertia mass 5 having poly V grooves 5a and poly V grooves 5b formed thereon and four portions 5d formed over the entire circumference on the inner circumferential surface is opposed to the outer circumferential surface of the rim portion 3, and a predetermined gap C+ (C+
>C), then a ring-shaped uncompressed rubber-like elastic body 6Δ is inserted into the gap formed by the outer circumferential surface of the rim portion 3 and the inner circumferential surface of the inertia mass 5. Then the second
As shown in FIG. The convex portion 10a is arranged on the surface so as to face the four portions 5d of the inertia mass 5 and in contact with the inner circumferential surface of the rim portion 3. Next, as shown in FIG. 2(d), while periodically rotating the rim portion 3 and the forming roller 10 in the direction of the arrow A, the forming roller 10 is moved toward the rubber-like elastic body 6 in the direction of the arrow S. to press. This pressing action causes the rim portion 3 to have a convex portion 3a.
is formed and the rubber-like elastic body 6 is compressed. This compression action continues until the maximum outer diameter D1 of the convex portion 3a of the rim portion 3 becomes equal to or larger than the diameter D2 of the inner circumferential surface of the inertia mass 5, and the distance C is reached. As a result, the damper pulley 1 of the present invention is completed.
第３図は本発明の第２実施例に係り、リム部３は金属製
円板８の外周部をすり割って形成されている。リム部３
の外周面の一側には予めイナーシャマス５側に向って折
曲された第１実施例の凸部３ａに相当する凸部３ｂが形
成されており、この凸部３ｂの外４＆ Ｄ Ｉ はイナ
ーシャマス５の内周面の直径Ｄ２以上に設定されている
。そして、リム部３の外周面とイナーシャマス５どの間
にゴム状弾性体６を圧入した後、仮想線で示すリム部３
の外周面の他側を実線に示す位置までイナーシャマス５
側に折曲して凸部３ｂと同一外径の凸部３ｄを形成し、
両凸部３ｂ、３ｄによりイナーシャマス５およびゴム状
弾性体６を挾持するようになっている。FIG. 3 shows a second embodiment of the present invention, in which the rim portion 3 is formed by slotting the outer circumferential portion of a metal disc 8. As shown in FIG. Rim part 3
A convex portion 3b corresponding to the convex portion 3a of the first embodiment, which is bent toward the inertia mass 5 side in advance, is formed on one side of the outer peripheral surface of the convex portion 3b. The diameter D2 of the inner peripheral surface of the inertia mass 5 is set to be greater than or equal to the diameter D2. After press-fitting a rubber-like elastic body 6 between the outer peripheral surface of the rim portion 3 and the inertia mass 5, the rim portion 3 is
Inertia mass 5 to the position shown by the solid line on the other side of the outer peripheral surface of
Bend it to the side to form a protrusion 3d having the same outer diameter as the protrusion 3b,
The inertia mass 5 and the rubber-like elastic body 6 are held between the convex portions 3b and 3d.
なお上記第２実施例においては、すり割り時にリム部３
の外周面中間部に全周にわたって凹部３ｅが形成されて
いる。またこの四部３ｅに対向してイナーシャマス５の
内周面には全周にわたって凸部５ｅが形成されている。Note that in the second embodiment, the rim portion 3 is
A recess 3e is formed in the middle part of the outer circumferential surface over the entire circumference. Further, a convex portion 5e is formed on the inner peripheral surface of the inertia mass 5 over the entire circumference, facing the four portions 3e.
［発明の効果コ
以上のとおり、本発明によれば、リム部の凸部の最大外
径がイナーシャマスの内周面の直径以上に設定されてい
るので、ゴム状弾性体が外方に抜は出ることを防ぐこと
ができるとどもに、イナーシャマスの脱落を防ぐことが
できる。[Effects of the Invention] As described above, according to the present invention, the maximum outer diameter of the convex portion of the rim portion is set to be greater than or equal to the diameter of the inner circumferential surface of the inertia mass, so that the rubber-like elastic body is not pulled outward. If you can prevent inertia from coming out, you can also prevent inertia from falling off.
【図面の簡単な説明】
第１図および第２図は本発明の第１実施例に係り、第１
図はダンパープーリーを示す縦断面説明図、第２図（ａ
）〜（ｄ）はそれぞれダンパープーリーの製造工程を示
す説明図、第３図は本発明の第２実施例に係るダンパプ
ーリーの要部を示す縦断面説明図、第４図は従来のダン
パープーリーを示す縦断面説明図である。
１・・・ダンパープーリー
３・・・リム部
３ａ 、 ３ｂ 、 ３ｄ −・・凸部５・・・イナー
シャマス
６・・・ゴム状弾性体
代理人 弁理士 三 好 保 男１・・・ダン
パープーリー
３・・・リム部
ａ
ｂ
ｄ
・・・凸部
５・・・イナーシャマス
６・・・ゴム状弾性体
第２図（ａ）
第２図（Ｃ）
第１図
第２図（ｂ）
第２図（ｄ）[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 and FIG. 2 relate to a first embodiment of the present invention.
The figure is a vertical cross-sectional explanatory diagram showing the damper pulley, and Figure 2 (a
) to (d) are explanatory diagrams showing the manufacturing process of the damper pulley, respectively, FIG. 3 is a vertical cross-sectional explanatory diagram showing the main parts of the damper pulley according to the second embodiment of the present invention, and FIG. 4 is a conventional damper pulley. FIG. 1... Damper pulley 3... Rim portions 3a, 3b, 3d -... Convex portion 5... Inertia mass 6... Rubber-like elastic body agent Patent attorney Yasu Miyoshi Male 1... Damper pulley 3... Rim part a b d... Convex part 5... Inertia mass 6... Rubber-like elastic body Fig. 2(a) Fig. 2(C) Fig. 1 Fig. 2(b) Figure 2(d)
Claims (2)
定の間隔をおいて半径方向外側に同心的に配置されたイ
ナーシャマスと、このイナーシャマスの内周面と前記リ
ム部の外周面との間に介装されたゴム状弾性体とを備え
、前記リム部の外周部分に周方向に沿って凸部を形成し
、この凸部の最大外径が前記イナーシャマスの内周面の
直径以上に設定されたことを特徴とするダンパープーリ
ー。(1) A rim portion formed in a ring shape, an inertia mass disposed concentrically outside the rim portion in the radial direction at a predetermined interval, and an inner peripheral surface of the inertia mass and an outer periphery of the rim portion. a rubber-like elastic body interposed between the rim portion and the rim portion, a convex portion is formed along the circumferential direction on the outer peripheral portion of the rim portion, and the maximum outer diameter of the convex portion is equal to the inner peripheral surface of the inertia mass. A damper pulley characterized by having a diameter greater than or equal to .
成し、ついで、このリム部の外周面と所定の間隔をおい
てイナーシャマスを配置し、ついで、このイナーシャマ
スの内周面と前記リム部の外周面とにより形成された空
隙部にゴム状弾性体を介装し、ついで、前記リム部の外
周部分に塑性加工により外径が前記イナーシャマスの内
周面の直径以上に設定された凸部を周方向に沿って形成
することを特徴としたダンパープーリーの製造方法。(2) A rim part is formed on the outer periphery of a metal disc by plastic working, an inertia mass is placed at a predetermined distance from the outer periphery of the rim part, and then an inertia mass is placed on the inner periphery of the inertia mass. A rubber-like elastic body is interposed in the gap formed by the outer circumferential surface of the inertia mass, and the outer circumferential portion of the rim portion is then plastically worked to have an outer diameter larger than the diameter of the inner circumferential surface of the inertia mass. A method for manufacturing a damper pulley, characterized in that a predetermined convex portion is formed along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63244412A JP2839267B2 (en) | 1988-09-30 | 1988-09-30 | Damper pulley and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63244412A JP2839267B2 (en) | 1988-09-30 | 1988-09-30 | Damper pulley and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0293154A true JPH0293154A (en) | 1990-04-03 |
| JP2839267B2 JP2839267B2 (en) | 1998-12-16 |
Family
ID=17118280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63244412A Expired - Lifetime JP2839267B2 (en) | 1988-09-30 | 1988-09-30 | Damper pulley and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2839267B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734243U (en) * | 1993-12-02 | 1995-06-23 | 東海ゴム工業株式会社 | Torsional damper |
| EP0682192A2 (en) * | 1994-05-13 | 1995-11-15 | Tokai Rubber Industries, Ltd. | Oscillating rod member equipped with dynamic damper |
| EP1396656A1 (en) * | 2002-09-04 | 2004-03-10 | PAGUAG GmbH | Torsional vibration damper with small axial extension and manufacturing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894936U (en) * | 1981-12-21 | 1983-06-28 | 日野自動車株式会社 | Button type torsional rubber damper |
-
1988
- 1988-09-30 JP JP63244412A patent/JP2839267B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894936U (en) * | 1981-12-21 | 1983-06-28 | 日野自動車株式会社 | Button type torsional rubber damper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734243U (en) * | 1993-12-02 | 1995-06-23 | 東海ゴム工業株式会社 | Torsional damper |
| EP0682192A2 (en) * | 1994-05-13 | 1995-11-15 | Tokai Rubber Industries, Ltd. | Oscillating rod member equipped with dynamic damper |
| EP0682192A3 (en) * | 1994-05-13 | 1995-12-13 | Tokai Rubber Ind Ltd | |
| EP0810388A1 (en) * | 1994-05-13 | 1997-12-03 | Tokai Rubber Industries, Ltd. | Oscillating rod member equipped with dynamic damper |
| EP1396656A1 (en) * | 2002-09-04 | 2004-03-10 | PAGUAG GmbH | Torsional vibration damper with small axial extension and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2839267B2 (en) | 1998-12-16 |
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