JPS6174927A - Vibration absorbing device - Google Patents
Vibration absorbing deviceInfo
- Publication number
- JPS6174927A JPS6174927A JP19524784A JP19524784A JPS6174927A JP S6174927 A JPS6174927 A JP S6174927A JP 19524784 A JP19524784 A JP 19524784A JP 19524784 A JP19524784 A JP 19524784A JP S6174927 A JPS6174927 A JP S6174927A
- Authority
- JP
- Japan
- Prior art keywords
- core member
- rubber elastic
- absorbing device
- vibration
- circular hole
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は車体に伝播する振動を吸収して防振機能を発揮
し得る振動吸収装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vibration absorbing device capable of absorbing vibrations propagating to a vehicle body and exhibiting a vibration damping function.
（従来の技術）
ゴムの弾性能と振動に対し共振体となる重量部材とを、
組合わせて振動を吸収しようとする装置は従来から種々
あり、その代表的なものは第８図及び第９図に示す如き
構造を有する。(Prior technology) The elasticity of rubber and the heavy member that acts as a resonator for vibration are
There have been various types of devices that try to absorb vibrations in combination, and typical ones have structures as shown in FIGS. 8 and 9.
すなわち、車体側に固定せしめる円筒状の芯部材（１）
と、芯部材（１）に比し大径の円形孔（３）を有する重
量部材（２）例えば厚肉筒部材とを同心円状に配置して
芯部材（１）の周りの円形孔（３）部にゴム弾性体（４
）を充填して芯部材（１）と重量部材（２）とを連結一
体せしめた構造である。That is, a cylindrical core member (1) fixed to the vehicle body side.
A heavy member (2), for example, a thick-walled cylindrical member, having a circular hole (3) with a larger diameter than the core member (1) is arranged concentrically to form a circular hole (3) around the core member (1). ) part has a rubber elastic body (4
) is filled to connect and integrate the core member (1) and the weight member (2).
（発明が解決しようとする問題点）
かかる従来装置は、芯部材（１）を基準としてその周り
の形態はどこをとっても同じとなる所謂回転対称形状で
あるところから、半径方向の共振周波数がどの方向であ
ろうとも同じであるために、車輛側において抑制したい
振動の周波数が方向によって異なるような場合、各周波
数毎に共振し得る共振周波数を持つ振動吸収装置を必要
個数設置する必要があり、取り付はスペースを広く占有
すること、重量増加の原因となり運転経済性に問題があ
ること、装置コストの増大を招くことなどの実用上の種
々な問題点を有している。(Problems to be Solved by the Invention) This conventional device has a so-called rotationally symmetrical shape in which the shape of the surroundings is the same everywhere with the core member (1) as a reference. Since the frequency is the same regardless of the direction, if the frequency of the vibration that you want to suppress on the vehicle side differs depending on the direction, it is necessary to install the necessary number of vibration absorbers that have a resonant frequency that can resonate for each frequency. The installation has various practical problems, such as occupying a large space, causing an increase in weight and causing problems in operating economy, and increasing the cost of the device.
このような実状に対処して前述する従来の問題点を解消
することを技術的課題として本発明は成されるに至った
ものであって、１個の振動吸収装置によって周波数が夫
々異なり、かつ方向が違う多くの振動を吸収抑制し得る
如くなすことにより、使用数の削減による運転経済性な
らびに装置コヌト面の改善を果そうとするものである。The present invention has been achieved with the technical objective of dealing with this situation and solving the above-mentioned conventional problems. By making it possible to absorb and suppress many vibrations in different directions, it is intended to improve the operating economy and equipment performance by reducing the number of vibrations used.
（問題点を解決するだめの手段）
しかして本発明は車体あるいは車体取付用車輛部品に固
定せしめる円柱状あるいは円筒状をなす芯部材と、該芯
部材に比し大径の円形孔を有する比重が大きい材料から
なる重量部材と、前記芯部材を前記円形孔に同心に嵌挿
した状態で該芯部材の周りの円形孔部に充填して芯部材
と前記重量部材とを連結一体せしめるゴム弾性体とから
振動吸収装置を構成せしめて、前記ゴム弾性体には、前
記芯部材の軸に平行的に設けた貫通孔あるいは凹部から
なる空隙部が芯部材の中心軸に対する１８０゜の回転対
称に配設されてなることを特徴とする。(Means for Solving the Problems) The present invention provides a cylindrical or cylindrical core member fixed to a vehicle body or vehicle parts for attachment to the vehicle body, and a specific gravity core member having a circular hole having a larger diameter than the core member. a heavy member made of a material with a large diameter, and a rubber elastic material that is filled into a circular hole around the core member to connect and integrate the core member and the heavy member when the core member is fitted concentrically into the circular hole. A vibration absorbing device is configured with the rubber elastic body, and the rubber elastic body has a cavity formed of a through hole or a recess provided parallel to the axis of the core member, and is rotationally symmetrical at 180° with respect to the central axis of the core member. It is characterized by being arranged.
（作 用）
本発明に係る振動吸収装置は線対称に配設された空隙部
相互を結ぶ直線方向と空隙部を有しない、充実部相互を
、結ぶ直線方向とでは、その方向の振動に対する共振周
波数が異なって、前者の方が小さくなることから、振動
方向によって振動周波数が異なる如き振動発生部に対し
て、夫々の方向と振動周波数に合致せしめた振動吸収装
置を１個取付けるだけで、複数の方向の振動を抑制する
ことが可能である。(Function) The vibration absorbing device according to the present invention has resonance for vibration in the direction between the linear direction connecting the voids disposed axisymmetrically and the linear direction connecting the solid portions that do not have a void. Since the frequencies are different and the former is smaller, multiple vibration absorbers can be installed by simply installing one vibration absorber that matches the vibration frequency in each direction to a vibration generating part where the vibration frequency differs depending on the vibration direction. It is possible to suppress vibrations in the direction of.
（実施例）
以下、本発明の実施例を添付図面にもとづいて詳述する
。(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.
第１図乃至第７図において、（１）は削性体からなる芯
部材で円筒状をなしており、ボルトを挿通して車体ある
いは車体に取付けるだめの車輛部品に螺合等により固定
せしめるが、取付、態様によっては円柱状に形成したも
のであってもよい。In Figures 1 to 7, (1) is a core member made of a machinable material, which has a cylindrical shape, and is fixed by screwing onto the vehicle body or vehicle parts to be attached to the vehicle body through the insertion of bolts. Depending on the manner of attachment, it may be formed into a cylindrical shape.
（２）は前記芯部材（１）に対し同心をなし配設される
厚肉筒状の重量部材であって、鋳鋼など比重が大きい材
料によって芯部材（１）に比し大径の円形孔（３）を有
する筒体に形成している。(2) is a thick-walled cylindrical heavy member disposed concentrically with respect to the core member (1), and is made of a material with a high specific gravity such as cast steel and has a circular hole with a larger diameter than that of the core member (1). (3) It is formed into a cylindrical body.
このように同心配列してなる芯部材（１）と重量部材（
２）の間、すなわち、芯部材（１）の周りの前記円形孔
（３）部には、ゴム弾性体（４）を充填し、芯部材（１
）の周面及び円形孔（３）周壁に加硫接着することによ
って、芯部材（１）と重量部材（２）とを連結一体せし
めている。The core member (1) and the weight member (1) are arranged concentrically in this way.
2), that is, the circular hole (3) around the core member (1), is filled with a rubber elastic body (4), and the core member (1) is filled with a rubber elastic body (4).
) and the circumferential wall of the circular hole (3), the core member (1) and the weight member (2) are connected and integrated.
上記ゴム弾性体（４）には、芯部材（１）の軸に平行的
に設けた空隙部（５）が分散して配設されているが、こ
の空隙部（５）は芯部材（１）の中心を通る中心軸に対
して１８０°の回転対称に配設させている。The rubber elastic body (4) is provided with distributed voids (5) parallel to the axis of the core member (1). ) are arranged rotationally symmetrically at 180° with respect to the central axis passing through the center.
なお、第１図及び第２図に示した例は前記空隙部（５）
が軸方向に貫通した貫通孔により形成され、一方、第３
図及び第４図に示した例はゴム弾性体（４）の両端面か
ら適宜の深さだけ穿設した凹部により形成されており、
また、第５図乃至第７図に夫々示した例は貫通孔あるい
は凹部のいずれかを適宜選択して空隙部（５）が形成さ
れる。Note that the example shown in FIGS. 1 and 2 is the void portion (5).
is formed by a through hole passing through in the axial direction, while the third
The example shown in the figures and FIG. 4 is formed by recesses bored to an appropriate depth from both end surfaces of the rubber elastic body (4).
Further, in the examples shown in FIGS. 5 to 7, the void portion (5) is formed by appropriately selecting either a through hole or a recessed portion.
このように空隙部（５）を設けたことによって、対称を
なす空隙部（５）相互を結ぶ面の方向に対する振動吸収
装置の共振周波数（ｆ２）と、空隙部（５）が存しない
充実部を横断する面の方向に対する共振周波数（ｆｌ）
との間にはｆｘ ＞ ｆ２なる関係が成立することが種
々実験を行った結果、明らかとなった。By providing the cavity (5) in this way, the resonant frequency (f2) of the vibration absorbing device in the direction of the plane connecting the cavity (5), which is symmetrical, and the solid part where the cavity (5) does not exist can be changed. Resonant frequency (fl) for the direction of the plane that crosses
As a result of various experiments, it has become clear that the relationship fx > f2 holds between the two.
しかして、空隙部（５）を形成した方向に関しては、第
１図、第３図及び第５図に示した例は一方向であって、
充実部を横断する方向との間に直角の関係を有せしめて
いるのに対して、第６図及び第７図に例示したものは、
空隙部（５）を形成した方向が互いに直交する二方向で
、かつ充実部を横断する方向は位相角が４５°ずれた二
方向となっており、しかも空隙部（５）を形成するに際
して、孔径と変え（第６図参照）、あるいは隣接する孔
間に挾まれる部分のゴム層の厚みを変える（第７図参照
）などの手段を施すことＫよって各方向についての共振
周波数を異ならせることが可能である。However, regarding the direction in which the void portion (5) is formed, the examples shown in FIGS. 1, 3, and 5 are in one direction,
While there is a perpendicular relationship with the direction that crosses the solid part, the examples shown in FIGS. 6 and 7,
The directions in which the void portion (5) was formed are two directions that are orthogonal to each other, and the directions that cross the solid portion are two directions with a phase angle shifted by 45°, and when forming the void portion (5), By changing the hole diameter (see Figure 6) or by changing the thickness of the rubber layer in the area sandwiched between adjacent holes (see Figure 7), the resonance frequency in each direction can be made different. Is possible.
すなわち、第６図々示例はｆｌ ） ｆ２ ） ｆ３
の関係となって大きい孔径（ｄ２）を持つ空隙部（５）
に対応する方向の共振周波数（ｆ３）を最小とすること
ができる。That is, the example shown in Figure 6 is fl ) f2 ) f3
A void portion (5) having a large pore diameter (d2) with the relationship
The resonant frequency (f3) in the direction corresponding to can be minimized.
一方、第７図々示例は空隙部（５）を有しない充実部を
横断する二方向の間で厚い方のゴム層厚（ａ）を持つ部
分に対応する方向の共振周波数（ｆｌ）が最大で空隙部
（５）に対応する方向の共振周波数（ｆ３）を最小とす
ることが可能である。On the other hand, in the example shown in Figure 7, the resonant frequency (fl) in the direction corresponding to the thicker rubber layer thickness (a) between the two directions crossing the solid part without the void part (5) is the maximum. It is possible to minimize the resonance frequency (f3) in the direction corresponding to the cavity (5).
か＼る構造を有する振動吸収装置は、車輛の振動が方向
によって周波数を異にするような場合に、それ等各振動
を抑制するのに、１個の振動吸収装置に対して対応する
共振周波数（ｆｌ）〜（ｆ３）ならび（てその方向を規
定させて予め設計してなるものを用いることによって、
この振動吸収装置だけで充分機能し得るものである。A vibration absorbing device with such a structure has a resonance frequency that corresponds to one vibration absorbing device in order to suppress each vibration when the frequency of vehicle vibration differs depending on the direction. (fl) to (f3) and (by using a device that is pre-designed with its direction specified,
This vibration absorbing device alone can function satisfactorily.
（発明の効果）
本発明はゴム弾性体（４）に対して、芯部材（１）の中
、Ｕ軸に対する１８０°の回転対称に配設されてなる空
隙部（５）を形成することによって、１個の振動吸収装
置で方向及び周波数が異なる数種の振動を抑制すること
ができ、装置点数の減少による軽量化、装置コストの低
減ならびに運転燃費の向上に寄与する処多大なものがあ
る。(Effects of the Invention) The present invention provides a rubber elastic body (4) by forming a cavity (5) in the core member (1) that is rotationally symmetrical at 180° with respect to the U axis. , a single vibration absorption device can suppress several types of vibrations with different directions and frequencies, and has a large amount of processing power that contributes to weight reduction by reducing the number of devices, reducing device costs, and improving driving fuel efficiency. .
第１図、第３図、第５図乃至第７図は本発明の各実施例
に係る側面図、第２図及び第４図は夫々第１図及び第３
図に示す例の縦断正面図、第８図及び第９図は従来の振
動吸収装置の側面図及び縦断正面図である。
（１）・・芯部材、 （２）・・重量部材、（３
）−円形孔、 （４）・・ゴム弾性体、（５）・
・空隙部。
特許呂願人 東洋ゴム工業株式会社第５図
ｇＪ ６図
第８図 ｇＪ９図1, 3, 5 to 7 are side views of each embodiment of the present invention, and FIGS. 2 and 4 are side views of each embodiment of the present invention.
FIGS. 8 and 9 are a side view and a vertical front view of a conventional vibration absorbing device. (1) Core member, (2) Weight member, (3
) - circular hole, (4)... rubber elastic body, (5) -
・Void area. Patent applicant Toyo Rubber Industries Co., Ltd. Figure 5
gJ 6 figure 8 gJ9 figure
Claims (1)
柱状あるいは円筒状をなす芯部材（１）と、該芯部材（
１）に比し大径の円形孔（３）を有する比重が大きい材
料からなる重量部材（２）と、前記芯部材（１）を前記
円形孔（３）に同心に嵌挿した状態で該芯部材（１）の
周りの円形孔（３）部に充填して芯部材（１）と前記重
量部材（２）とを連結一体せしめるゴム弾性体（４）と
からなり、前記ゴム弾性体（４）には、前記芯部材（１
）の軸に平行的に設けた貫通孔あるいは凹部からなる空
隙部（５）が芯部材（１）の中心軸に対する１８０°の
回転対称に配設されていることを特徴とする振動吸収装
置。1. A cylindrical or cylindrical core member (1) to be fixed to a vehicle body or vehicle parts for attachment to the vehicle body;
A heavy member (2) made of a material having a large specific gravity and having a circular hole (3) with a larger diameter than that of 1) and the core member (1) are fitted concentrically into the circular hole (3). It consists of a rubber elastic body (4) that is filled into a circular hole (3) around the core member (1) to connect and integrate the core member (1) and the weight member (2), and the rubber elastic body ( 4) includes the core member (1
) A vibration absorbing device characterized in that a cavity (5) consisting of a through hole or a recess provided parallel to the axis of the core member (1) is arranged in rotational symmetry of 180° with respect to the central axis of the core member (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19524784A JPS6174927A (en) | 1984-09-17 | 1984-09-17 | Vibration absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19524784A JPS6174927A (en) | 1984-09-17 | 1984-09-17 | Vibration absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6174927A true JPS6174927A (en) | 1986-04-17 |
Family
ID=16337945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19524784A Pending JPS6174927A (en) | 1984-09-17 | 1984-09-17 | Vibration absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6174927A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2652865A1 (en) * | 1989-10-05 | 1991-04-12 | Caoutchouc Manuf Plastique | PROCESS FOR PRODUCING DIFFERENTIALLY RIGIDITE ELASTIC PARTS IN THREE DIRECTIONS USING RIGID FRAME CYLINDRICAL PARTS. |
| CN108317199A (en) * | 2018-02-08 | 2018-07-24 | 株洲时代新材料科技股份有限公司 | The flexural pivot axial direction rigidity-changing method and flexural pivot of I-shaped bushing and laminated spring cooperation |
-
1984
- 1984-09-17 JP JP19524784A patent/JPS6174927A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2652865A1 (en) * | 1989-10-05 | 1991-04-12 | Caoutchouc Manuf Plastique | PROCESS FOR PRODUCING DIFFERENTIALLY RIGIDITE ELASTIC PARTS IN THREE DIRECTIONS USING RIGID FRAME CYLINDRICAL PARTS. |
| CN108317199A (en) * | 2018-02-08 | 2018-07-24 | 株洲时代新材料科技股份有限公司 | The flexural pivot axial direction rigidity-changing method and flexural pivot of I-shaped bushing and laminated spring cooperation |
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