JP2010091014A - Vibration absorbing device - Google Patents

Vibration absorbing device Download PDF

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JP2010091014A
JP2010091014A JP2008262160A JP2008262160A JP2010091014A JP 2010091014 A JP2010091014 A JP 2010091014A JP 2008262160 A JP2008262160 A JP 2008262160A JP 2008262160 A JP2008262160 A JP 2008262160A JP 2010091014 A JP2010091014 A JP 2010091014A
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inner cylinder
damper
fixing member
cylinder member
vibration isolator
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JP2008262160A
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Japanese (ja)
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Hideki Sugawara
英樹 菅原
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Bridgestone Corp
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Bridgestone Corp
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Priority to JP2008262160A priority Critical patent/JP2010091014A/en
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    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
    • F16F7/108—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration absorbing device with a dynamic damper, eliminating the possibility of the dynamic damper falling even when an inner cylinder member is arranged in a horizontal attitude, without increasing the number of components. <P>SOLUTION: The vibration absorbing device 10 comprises a damper fixing member 5 whose base end is integrally mounted on a body 21 of the vibration absorbing device 10, and whose front end is protruded to the axial outside of the inner cylinder member 1 and diameter-enlarged with its outer diameter portion larger than the inner diameter of the inner cylinder member 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、内筒部材と、その半径方向外側に配置された質量部材と、これらの間に配置されこれらを連結しする弾性部材とよりなるダイナミックダンパを、ダンパ固定部材を介して取り付けた防振装置に関する。   According to the present invention, a dynamic damper comprising an inner cylinder member, a mass member arranged on the outer side in the radial direction, and an elastic member arranged between them and connecting them is attached via a damper fixing member. The present invention relates to a vibration device.

従来から、図１に中心軸線を通る断面で示すように、内筒部材９１と、その半径方向外側に配置された質量部材９２と、これらの間に配置されこれらを連結しする弾性部材９３とよりなるダイナミックダンパ９４を、内筒部材９１の半径方向内側に配置された棒状のダンパ固定部材９５を介して取り付けてなる防振装置９０が知られている（例えば、特許文献１参照。）。この防振装置９０において、第１本体部材９６は、ブラケット９７を介して振動源側に取り付けられ、第２本体部材９８は振動受け側に取り付けられていて、第１本体部材９６と第２本体部材９８とは例えば弾性部材９３によって連結されていて、振動源の振動に伴う第１本体部材９６の第２本体部材に対する相対変位を弾性部材９３によって吸収し、振動源の振動を振動受け側に伝達するのを抑えるよう機能する。   Conventionally, as shown in a cross section passing through the central axis in FIG. 1, an inner cylindrical member 91, a mass member 92 arranged on the outer side in the radial direction, and an elastic member 93 arranged between them and connecting them, There is known a vibration isolator 90 in which a dynamic damper 94 is attached via a rod-shaped damper fixing member 95 disposed on the inner side in the radial direction of the inner cylinder member 91 (see, for example, Patent Document 1). In the vibration isolator 90, the first main body member 96 is attached to the vibration source side via the bracket 97, and the second main body member 98 is attached to the vibration receiving side. The member 98 is connected by, for example, an elastic member 93, and the elastic member 93 absorbs the relative displacement of the first main body member 96 with respect to the second main body member due to the vibration of the vibration source, and the vibration of the vibration source is moved to the vibration receiving side. It functions to suppress transmission.

一方、ダイナミックダンパ９４は、振動源側の固有周波数による共振を抑えるため設けられる。   On the other hand, the dynamic damper 94 is provided to suppress resonance due to the natural frequency on the vibration source side.

そして、このようなダイナミックダンパ９４の防振装置９０の本体への取り付け構造に関し、従来技術にあっては、図１に示すように、ダンパ固定部材９５として植え込みボルト９５Ａを用い、本体部材９６に固定された植え込みボルト９５Ａの半径方向外側に内筒を配置した後、内筒部材９１の軸方向外側にワッシャ８１を配置し、ワッシャ８１を貫通して突出した植え込みボルト９５Ａのねじ部にナット８２をねじ込み、ワッシャ８１と本体部材９６との間にの内筒部材９１を挟み込むことによって、ダイナミックダンパ９４を防振装置９０の本体に取り付けることができるよう構成されている。   With regard to the structure for attaching the dynamic damper 94 to the main body of the vibration isolator 90, according to the prior art, as shown in FIG. After the inner cylinder is arranged outside the fixed implantation bolt 95A in the radial direction, the washer 81 is arranged outside the inner cylinder member 91 in the axial direction, and the nut 82 is attached to the thread portion of the implantation bolt 95A protruding through the washer 81. And the dynamic damper 94 can be attached to the main body of the vibration isolator 90 by sandwiching the inner cylinder member 91 between the washer 81 and the main body member 96.

しかし、この場合、部品点数が増えてコストアップや組立工数アップにつながること、また、ワッシャ８１とナット８２との、振動に伴う微小相対変位に起因する電食が発生する可能性があること等の理由で、ねじ止めによらないダイナミックダンパ９４の防振装置９０の本体への取り付け構造が提案されている。   However, in this case, the number of parts increases, leading to an increase in cost and assembly man-hours, and there is a possibility that electric corrosion due to minute relative displacement caused by vibration between the washer 81 and the nut 82 may occur. For this reason, a structure for mounting the dynamic damper 94 to the main body of the vibration isolator 90 without using screwing has been proposed.

図２は、このような防振装置８０を中心軸線を通る断面で示す断面図であり、防振装置８０は、ダンパ固定部材９５として棒状部材９５Ｂを用い、第１本体部材９６に固定された棒状部材９５Ｂをダイナミックダンパ９４の内筒部材９１に圧入することによってダイナミックダンパ９４を固定することができるよう構成されている。
特開２０００−３３７４３１号公報 FIG. 2 is a cross-sectional view showing such a vibration isolator 80 in a cross section passing through the central axis. The vibration isolator 80 is fixed to the first main body member 96 using a rod-shaped member 95B as the damper fixing member 95. The dynamic damper 94 can be fixed by press-fitting the rod-shaped member 95B into the inner cylinder member 91 of the dynamic damper 94.
JP 2000-337431 A

しかしながら、上記の圧入によってダイナミックダンパ９４を防振装置８０に固定する構造は、部品点数も少なく電食も抑えることができるものの、ダイナミックダンパ９４の防振装置８０の本体への固定を圧入に頼っているため、質量の大きい質量部材９２を半径方向外側に配置されているダイナミックダンパ９４にあっては、圧入された部分が、振動によって防振装置本体から外れる可能性もあり、この場合、従来のように、内筒部材の軸線を上下に向けた姿勢でダイナミックダンパ９４を本体の上側に配置した場合にはこれが落下することはないが、例えば、内筒部材が水平に向く姿勢で配置されるような場合のことを考慮してダイナミックダンパ９４の落下防止策の検討がなされていた。   However, the structure in which the dynamic damper 94 is fixed to the vibration isolator 80 by the above press fitting can reduce the number of components and suppress electric corrosion, but relies on the press fitting to fix the dynamic damper 94 to the main body of the vibration isolator 80. Therefore, in the dynamic damper 94 in which the mass member 92 having a large mass is arranged on the outer side in the radial direction, the press-fitted portion may be detached from the vibration isolator main body due to vibration. When the dynamic damper 94 is arranged on the upper side of the main body with the posture in which the axis of the inner cylinder member is directed up and down, it will not fall, but for example, the inner cylinder member is arranged in a posture that faces horizontally. In consideration of such cases, measures for preventing the dynamic damper 94 from falling have been studied.

本発明は、このような問題点に鑑みてなされたものであり、部品点数を増加させることなく、内筒部材が水平に向く姿勢で配置されるような場合でもダイナミックダンパが落下する可能性をなくすことのできる、ダイナミックダンパ付防振装置を提供することを目的とする。   The present invention has been made in view of such problems, and it is possible to cause the dynamic damper to fall without increasing the number of parts even when the inner cylinder member is arranged in a horizontal orientation. An object of the present invention is to provide a vibration isolator with a dynamic damper that can be eliminated.

＜１＞は、内筒部材と、その半径方向外側に配置された質量部材と、これらの間に配置されこれらを連結しする弾性部材とよりなるダイナミックダンパを、内筒部材の半径方向内側に配置された軸方向に延びるダンパ固定部材を介して取り付けてなる防振装置において、
前記ダンパ固定部材の基端は、防振装置の本体に一体的に取り付けられ、前記ダンパ固定部材の先端は、前記内筒部材の軸方向外側に突出するとともに、内筒部材の内径よりも大きな外径部分を有するよう拡径されてなる防振装置である。 <1> is a dynamic damper including an inner cylinder member, a mass member arranged on the outer side in the radial direction, and an elastic member arranged between them and connecting them to the inner side in the radial direction of the inner cylinder member. In the vibration isolator which is attached via a damper fixing member extending in the axial direction,
The base end of the damper fixing member is integrally attached to the main body of the vibration isolator, and the tip of the damper fixing member protrudes outward in the axial direction of the inner cylinder member and is larger than the inner diameter of the inner cylinder member. This is a vibration isolator that is expanded to have an outer diameter portion.

＜２＞は、＜１＞において、前記ダンパ固定部材は、前記内筒部材にの内側に圧入されてなる防振装置である。   <2> is the vibration isolator according to <1>, wherein the damper fixing member is press-fitted inside the inner cylinder member.

＜３＞は、＜１＞または＜２＞において、前記ダンパ固定部材は、少なくともその先端において筒状に構成されてなる防振装置である。   <3> is an anti-vibration device according to <1> or <2>, wherein the damper fixing member is configured in a cylindrical shape at least at a tip thereof.

＜１＞によれば、前記ダンパ固定部材の基端は、防振装置の本体に一体的に取り付けられ、前記ダンパ固定部材の先端は、前記内筒部材の軸方向外側に突出するとともに、内筒部材の半径よりも大きな半径部分を有するよう拡径されているので、ダイナミックダンパがダンパ固定部材から抜け落ちようとしても、ダンパ固定部材の先端部が広げられているので、内筒部材がダンパ固定部材の拡径された先端部に干渉して抜けることができず、極めて簡易な構造で部品点数を増やすことなくダイナミックダンパの落下防止を実現することができる。   According to <1>, the base end of the damper fixing member is integrally attached to the main body of the vibration isolator, and the tip of the damper fixing member protrudes outward in the axial direction of the inner cylinder member, and Since the diameter is expanded to have a radius portion larger than the radius of the cylindrical member, even if the dynamic damper is about to fall off the damper fixing member, the tip of the damper fixing member is expanded so that the inner cylindrical member is fixed to the damper. It is possible to prevent the dynamic damper from falling without interfering with the diameter-expanded tip portion of the member and without increasing the number of parts with an extremely simple structure.

＜２＞によれば、前記ダンパ固定部材は、前記内筒部材にの内側に圧入されているので、簡易にダンパ固定部材を内筒部材に固定することができ、これによって内筒部材とダンパ固定部材との相対変位を抑え、これに伴う摩耗等の現象を抑えることができる。   According to <2>, since the damper fixing member is press-fitted inside the inner cylinder member, the damper fixing member can be easily fixed to the inner cylinder member, thereby the inner cylinder member and the damper. Relative displacement with the fixed member can be suppressed, and phenomena such as wear associated therewith can be suppressed.

＜３＞によれば、前記ダンパ固定部材は、少なくともその先端において筒状に構成されているので、先端の拡径を容易にすることができる。   According to <3>, since the damper fixing member is configured in a cylindrical shape at least at the tip thereof, the diameter of the tip can be easily increased.

本発明の実施形態について図に基づいて説明する。図３は、本発明に係る実施形態の防振装置を、中心軸線Ｃを通る断面で示す断面図であり、防振装置１０は、その本体部１１に基端１６が一体的に取り付けられた軸方向に延びるダンパ固定部材５を介してダイナミックダンパ４が取り付けられている。ダイナミックダンパ４は、内筒部材１と、その半径方向外側に配置された質量部材２と、これらの間に配設されこれらを連結する弾性部材３とよりなり、内筒部材１の内周面に、ダンパ固定部材５を圧入することによって取り付けられている。   Embodiments of the present invention will be described with reference to the drawings. FIG. 3 is a cross-sectional view showing the vibration isolator of the embodiment according to the present invention in a cross section passing through the central axis C. The vibration isolator 10 has a base end 16 attached to the main body 11 integrally. A dynamic damper 4 is attached via a damper fixing member 5 extending in the axial direction. The dynamic damper 4 includes an inner cylinder member 1, a mass member 2 arranged on the outer side in the radial direction, and an elastic member 3 arranged between them and connecting them, and the inner circumferential surface of the inner cylinder member 1. The damper fixing member 5 is attached by press-fitting.

この防振装置１０は、その特徴として、ダンパ固定部材５の先端１５が、内筒部材１の軸方向外側に突出するとともに、内筒部材１の内径よりも大きな外径部分を有するよう拡径されており、このことによって、内筒部材１が、ダンパ固定部材５から抜け落ちるの防止することができる。   The vibration isolator 10 is characterized in that the tip 15 of the damper fixing member 5 protrudes outward in the axial direction of the inner cylinder member 1 and has an outer diameter that is larger than the inner diameter of the inner cylinder member 1. Thus, the inner cylinder member 1 can be prevented from falling off from the damper fixing member 5.

ここで、ダイナミックダンパ４のダンパ固定部材５への固定は、この固定を長期に亘って維持させることができるという点において圧入によるのが好ましいが、これに代えて単なる嵌入だけでもよく、この場合、ダンパ固定部材５の先端部の拡径がダイナミックダンパ４のダンパ固定部材５への固定を担うことになる。   Here, the dynamic damper 4 is preferably fixed to the damper fixing member 5 by press-fitting in that the fixing can be maintained over a long period of time. The diameter of the tip of the damper fixing member 5 is increased to fix the dynamic damper 4 to the damper fixing member 5.

また、図３に示したダンパ固定部材５Ａは、パイプで構成したが、これは図４に示すよう先端にだけリング部１５Ａが形成されていてもよく、このリング部１５Ａを内筒部材１の内径よりも大きな径まで拡径することによって、ダイナミックダンパ４の落下を防止することができる。   Further, the damper fixing member 5A shown in FIG. 3 is configured by a pipe. However, as shown in FIG. 4, the ring portion 15A may be formed only at the tip, and this ring portion 15A is connected to the inner cylinder member 1. By expanding the diameter to a diameter larger than the inner diameter, the dynamic damper 4 can be prevented from falling.

従来の防振装置の一例を示す断面図である。It is sectional drawing which shows an example of the conventional vibration isolator. 従来の防振装置の他の例を示す断面図である。It is sectional drawing which shows the other example of the conventional vibration isolator. 本発明に係る防振装置を示す断面図である。It is sectional drawing which shows the vibration isolator which concerns on this invention. 本発明に係る防振装置の変形例を示す断面図である。It is sectional drawing which shows the modification of the vibration isolator which concerns on this invention.

符号の説明Explanation of symbols

１ 内筒部材
２ 質量部材
３ 弾性部材
４ ダイナミックダンパ
５、５Ａ ダンパ固定部材
１０ 防振装置
１１ 防振装置本体部
１５ ダンパ固定部材の先端
１６ ダンパ固定部材の基端
１５Ａ リング部 DESCRIPTION OF SYMBOLS 1 Inner cylinder member 2 Mass member 3 Elastic member 4 Dynamic damper 5, 5A Damper fixing member 10 Anti-vibration device 11 Anti-vibration device main-body part 15 Tip of damper fixing member 16 Base end of damper fixing member 15A Ring part

Claims (3)

内筒部材と、その半径方向外側に配置された質量部材と、これらの間に配置されこれらを連結する弾性部材とよりなるダイナミックダンパを、前記内筒部材の半径方向内側に配置された軸方向に延びるダンパ固定部材を介して取り付けてなる防振装置において、
前記ダンパ固定部材の基端は、防振装置の本体に一体的に取り付けられ、前記ダンパ固定部材の先端は、前記内筒部材の軸方向外側に突出するとともに、内筒部材の内径よりも大きな外径部分を有するよう拡径されてなる防振装置。 A dynamic damper comprising an inner cylinder member, a mass member arranged on the outer side in the radial direction, and an elastic member arranged between them and connecting them, an axial direction arranged on the inner side in the radial direction of the inner cylinder member In the vibration isolator which is attached via a damper fixing member extending to
The base end of the damper fixing member is integrally attached to the main body of the vibration isolator, and the tip of the damper fixing member protrudes outward in the axial direction of the inner cylinder member and is larger than the inner diameter of the inner cylinder member. An anti-vibration device that is expanded to have an outer diameter portion. 前記ダンパ固定部材は、前記内筒部材にの内側に圧入されてなる請求項１に記載の防振装置。   The vibration isolator according to claim 1, wherein the damper fixing member is press-fitted inside the inner cylinder member. 前記ダンパ固定部材は、少なくともその先端において筒状に構成されてなる請求項１もしくは２に記載の防振装置。   The vibration isolator according to claim 1 or 2, wherein the damper fixing member is formed in a cylindrical shape at least at a tip thereof.
JP2008262160A 2008-10-08 2008-10-08 Vibration absorbing device Withdrawn JP2010091014A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013119887A (en) * 2011-12-06 2013-06-17 Bridgestone Corp Vibration isolation device
JP2013119886A (en) * 2011-12-06 2013-06-17 Bridgestone Corp Vibration isolating device
JP2015516060A (en) * 2012-05-09 2015-06-04 トレルボルグ オートモーティヴ フォシェダ アクチエボラグＴｒｅｌｌｅｂｏｒｇ Ａｕｔｏｍｏｔｉｖｅ Ｆｏｒｓｈｅｄａ ＡＢ Tuning frequency damper
EP3333449A1 (en) * 2016-12-07 2018-06-13 Toyo Tire & Rubber Co., Ltd. Dynamic damper

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013119887A (en) * 2011-12-06 2013-06-17 Bridgestone Corp Vibration isolation device
JP2013119886A (en) * 2011-12-06 2013-06-17 Bridgestone Corp Vibration isolating device
JP2015516060A (en) * 2012-05-09 2015-06-04 トレルボルグ オートモーティヴ フォシェダ アクチエボラグＴｒｅｌｌｅｂｏｒｇ Ａｕｔｏｍｏｔｉｖｅ Ｆｏｒｓｈｅｄａ ＡＢ Tuning frequency damper
EP3333449A1 (en) * 2016-12-07 2018-06-13 Toyo Tire & Rubber Co., Ltd. Dynamic damper
CN108167376A (en) * 2016-12-07 2018-06-15 东洋橡胶工业株式会社 Dynamic shock absorber
US10634204B2 (en) 2016-12-07 2020-04-28 Toyo Tire Corporation Dynamic damper

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