JP6174476B2 - Friction damper - Google Patents
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- JP6174476B2 JP6174476B2 JP2013265144A JP2013265144A JP6174476B2 JP 6174476 B2 JP6174476 B2 JP 6174476B2 JP 2013265144 A JP2013265144 A JP 2013265144A JP 2013265144 A JP2013265144 A JP 2013265144A JP 6174476 B2 JP6174476 B2 JP 6174476B2
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Description
本発明は、自動車などの乗り物や産業機械などの用途において、機械側が本来持つバネ定数を増加させずに、減衰特性をコントロールすることができる摩擦ダンパーに関する。 The present invention relates to a friction damper capable of controlling damping characteristics without increasing a spring constant inherent in a machine side in applications such as vehicles such as automobiles and industrial machines.
自動車などの乗り物や産業機械では、通常、運転中に振動が発生し、それによって騒音も発生しやすい。従来、上記のような用途において振動を減衰させるには、オイルなどの流体を用いる流体ダンパーや高圧ガスを用いるガスダンパーなどが用いられていた（特許文献１参照）。また、乗り物や産業機械等の構造部材の振動部に錘を取り付ける方法や、高減衰ゴムを構造部材間に挟み込む方法なども知られている。 In vehicles such as automobiles and industrial machines, vibrations are usually generated during operation, and noise is easily generated. Conventionally, a fluid damper using a fluid such as oil or a gas damper using a high-pressure gas has been used to attenuate vibrations in the above-described applications (see Patent Document 1). In addition, a method of attaching a weight to a vibration part of a structural member such as a vehicle or an industrial machine, or a method of sandwiching a high damping rubber between the structural members is also known.
しかしながら、上記方法では、下記(a)ないし(e)などの問題がある。
（a）流体ダンパーはある程度のストロークでもって動かさないと減衰の効果が得られない。そのため、乗り物や産業機械等の用途で発生する小さいストロークの震動に対しては十分な減衰効果が得られない。さらに、流体ダンパーでは、作動時の発泡を抑制するために高圧ガスを封入する必要があり、装置が大型化する。
（b）高圧ガスを封入していないダンパーも開発されているが、機構が複雑で高コストである。
（c）錘や高減衰ゴムを用いる方法では、重量が大きくなったり、減衰の効果を発揮できる振動周波数の範囲が狭い。
（d）流体ダンパーや高減衰ゴムを用いた方法では、減衰特性が温度に依存して大きく変化する。
（e）ゴム用いたものや、高圧ガスを用いたものも、バネ特性を内在していることから、機械側のバネ定数を変化させてしまい、減衰効果だけを発現することが難しいという問題が有る。
However, the above method has the following problems (a) to (e).
(A) The damping effect cannot be obtained unless the fluid damper is moved with a certain stroke. Therefore, a sufficient damping effect cannot be obtained for small stroke vibrations generated in applications such as vehicles and industrial machines. Furthermore, in the fluid damper, it is necessary to enclose high-pressure gas in order to suppress foaming during operation, which increases the size of the device.
(B) Dampers that do not contain high-pressure gas have been developed, but the mechanism is complex and expensive.
(C) In the method using a weight or high-damping rubber, the range of vibration frequencies where the weight is increased or the damping effect can be exhibited is narrow.
(D) In the method using a fluid damper or a high damping rubber, the damping characteristic changes greatly depending on the temperature.
(E) The thing using rubber and the thing using high-pressure gas also have the problem that it is difficult to express only the damping effect because the spring constant on the machine side is changed because the spring characteristic is inherent. Yes.
本発明の課題は、軽量で簡単な機構で小さいストロークでも優れた減衰効果を発現し、機械側のバネ定数を増加させにくい摩擦ダンパーを提供することを目的とする。 An object of the present invention is to provide a friction damper that expresses an excellent damping effect even with a small stroke with a light and simple mechanism and hardly increases the spring constant on the machine side.
本発明者は、前記課題を解決すべく鋭意研究を重ねた結果、本発明を完成するに至った。すなわち、本発明は以下の構成からなる。
（１）構造部材間の振動を減衰させるための摩擦ダンパーであって、一方の構造部に設けられるシャフト部材と、他方の構造部材に設けられ、前記シャフト部材が嵌入した孔部を有するハウジング部材と、前記シャフト部材の外周面および孔部内周面の少なくとも一方に設けられた、弾性材および布材が一体化されてなる摺動部材とを備え、前記シャフト部材およびハウジング部材の前記シャフト部材の軸方向への相対移動により、前記シャフト部材の外周面と前記孔部の内周面とが摺動部材を介して接触摺動し、摩擦力を発生させるようにしたことを特徴とする摩擦ダンパー。
（２）前記布材は、織物布、編物布または不織布である前記（１）に記載の摩擦ダンパー。
（３）前記弾性材がエラストマーである前記（１）または（２）に記載の摩擦ダンパー。
（４）前記シャフト部材は、外周面に軸方向に沿って平行な複数の溝部が形成されており、前記孔部は内周面に前記溝部に嵌合する突条部が形成されている前記（１）〜（３）のいずれかに記載の摩擦ダンパー。
（５）構造部材間の振動を減衰させるための摩擦ダンパーであって、シャフト部材と、一方の構造部材に設けられ、前記シャフト部材の一端部が嵌入した第一孔部を有する第一ハウジング部材と、他方の構造部材に設けられ、前記シャフト部材の他端部が嵌入した第二孔部を有する第二ハウジング部材と、前記シャフト部材の外周面並びに前記第一孔部および第二孔部の内周面の少なくとも一方の面に設けられた、弾性材および布材が一体化されてなる摺動部材とを備え、前記シャフト部材並びに第一および第二ハウジング部材の前記シャフト部材の軸方向への相対移動により、前記シャフト部材の外周面と前記第一および第二孔部の内周面とが摺動部材を介して接触摺動し、摩擦力を発生させるようにしたことを特徴とする摩擦ダンパー。
（６）前記布材は、織物布、編物布または不織布である前記（５）に記載の摩擦ダンパー。
（７）前記弾性材が、エラストマーである前記（５）または（６）に記載の摩擦ダンパー。
（８）前記シャフト部材は、外周面に軸方向に沿って平行な複数の溝部が形成されており、前記第一および第二孔部は内周面に前記溝部に嵌合する突条部が形成されている前記（５）〜（７）のいずれかに記載の摩擦ダンパー。
As a result of intensive studies to solve the above problems, the present inventor has completed the present invention. That is, the present invention has the following configuration.
(1) A friction damper for attenuating vibration between structural members, a housing member having a shaft member provided in one structural portion and a hole portion provided in the other structural member into which the shaft member is fitted. And a sliding member that is provided on at least one of the outer peripheral surface of the shaft member and the inner peripheral surface of the hole and is formed by integrating an elastic material and a cloth material, and the shaft member and the housing member A friction damper characterized in that, by relative movement in the axial direction, an outer peripheral surface of the shaft member and an inner peripheral surface of the hole portion are brought into sliding contact with each other via a sliding member to generate a frictional force. .
(2) The friction damper according to (1), wherein the cloth material is a woven cloth, a knitted cloth or a non-woven cloth.
(3) The friction damper according to (1) or (2), wherein the elastic material is an elastomer.
(4) In the shaft member, a plurality of groove portions parallel to the axial direction are formed on the outer peripheral surface, and the hole portion is formed with a protrusion that fits in the groove portion on the inner peripheral surface. The friction damper according to any one of (1) to (3).
(5) A friction damper for attenuating vibration between structural members, the first housing member having a shaft member and a first hole provided in one of the structural members, into which one end of the shaft member is fitted. A second housing member provided in the other structural member and having a second hole portion into which the other end portion of the shaft member is fitted, an outer peripheral surface of the shaft member, and the first hole portion and the second hole portion. A sliding member formed by integrating an elastic material and a cloth material, provided on at least one surface of the inner peripheral surface, in the axial direction of the shaft member and the shaft member of the first and second housing members. The relative movement of the shaft member causes the outer peripheral surface of the shaft member and the inner peripheral surfaces of the first and second hole portions to slide in contact with each other via a sliding member, thereby generating a frictional force. Friction damper.
(6) The friction damper according to (5), wherein the cloth material is a woven cloth, a knitted cloth or a non-woven cloth.
(7) The friction damper according to (5) or (6), wherein the elastic material is an elastomer.
(8) In the shaft member, a plurality of groove portions parallel to the axial direction are formed on the outer peripheral surface, and the first and second hole portions have protrusions that fit into the groove portions on the inner peripheral surface. The friction damper according to any one of (5) to (7), wherein the friction damper is formed.
本発明の摩擦ダンパーは、シャフト部材の外周面および前記孔部の内周面が摺動部材を介して接触摺動し、摩擦力を発生させるようにしたものであるため、バネ成分がほとんどなく、反発力が出ないという特質があり、そのため機械側のバネ定数に影響を与えることなく振動を減衰させることができる。また、減衰特性が温度に依存しにくく、しかも簡単な機構であるため、従来のダンパーに比べて小型軽量化が可能である。従って、本発明の摩擦ダンパーは、自動車などの乗り物や産業機械などの用途に使用するのに好適である。
さらに、本発明によれば、漏れたり、劣化したりする可能性があるオイル等の流体を用いないので、保守・管理が容易である。さらに、実質的に振動のない通常時には、シャフト部材とハウジング部材の孔部とは摺動部材を介して嵌合状態であるので、フラつきのない安定した状態を保持することができる。
The friction damper according to the present invention is such that the outer peripheral surface of the shaft member and the inner peripheral surface of the hole portion are in sliding contact with each other through the sliding member to generate a frictional force, so that there is almost no spring component. There is a characteristic that no repulsive force is generated, so that vibration can be damped without affecting the spring constant on the machine side. In addition, since the attenuation characteristic is not dependent on temperature and is a simple mechanism, it can be reduced in size and weight as compared with a conventional damper. Therefore, the friction damper of the present invention is suitable for use in vehicles such as automobiles and industrial machinery.
Furthermore, according to the present invention, since fluid such as oil that may leak or deteriorate is not used, maintenance and management are easy. Further, at a normal time substantially free of vibration, the shaft member and the hole of the housing member are in a fitted state via the sliding member, so that a stable state without fluttering can be maintained.
以下、本発明の実施形態について、図面を参照して詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
〔本発明の一実施形態〕
図１、２は本発明の一実施形態に係る摩擦ダンパー１を示している。このダンパー１は、円柱状のシャフト部材２と、シャフト部材２が嵌入した孔部３ａを有するハウジング部材３と、ハウジング部材３の孔部３ａの内周面に取り付けられた摺動部材４とを備える。
シャフト部材２およびハウジング部材３の相対移動により、摺動部材４が、シャフト部材２の外周面に接触摺動して、摩擦力を発生させるように、シャフト部材２は、一端が摺動部材４を介してハウジング部材３の孔部３ａ内に嵌入されている。
これにより、シャフト部材２とハウジング部材３の孔部３ａとの嵌合部において、例えば、シャフト部材２がハウジング部材３内を矢印Ａ方向へ移動する際、シャフト部材２の外周面と、摺動部材４の表面との接触摺動によって減衰効果を発現する。
[One Embodiment of the Present Invention]
1 and 2 show a friction damper 1 according to an embodiment of the present invention. The damper 1 includes a cylindrical shaft member 2, a housing member 3 having a hole 3 a into which the shaft member 2 is fitted, and a sliding member 4 attached to the inner peripheral surface of the hole 3 a of the housing member 3. Prepare.
As the shaft member 2 and the housing member 3 move relative to each other, the sliding member 4 contacts and slides on the outer peripheral surface of the shaft member 2 to generate a frictional force. Is inserted into the hole 3 a of the housing member 3.
Thereby, in the fitting part of the shaft member 2 and the hole 3a of the housing member 3, for example, when the shaft member 2 moves in the direction of the arrow A in the housing member 3, it slides on the outer peripheral surface of the shaft member 2. The damping effect is expressed by contact sliding with the surface of the member 4.
（シャフト部材２）
シャフト部材２は、図２（ａ）に示すように、乗り物や産業機械などを構成する構造部材１００，１０１間の一方の構造部材１００に取り付けられる。シャフト部材２の外径および長さは使用用途や振動の大小等に応じて適宜調整すればよい。
(Shaft member 2)
As shown in FIG. 2A, the shaft member 2 is attached to one structural member 100 between the structural members 100 and 101 constituting a vehicle or an industrial machine. What is necessary is just to adjust the outer diameter and length of the shaft member 2 suitably according to a use application, the magnitude of a vibration, etc.
シャフト部材２の外周面は、平滑面であってもよいし、微細な凹凸面（粗面）であってもよい。シャフト部材２の角部は、面取り加工などが施されていてもよい。シャフト部材２は、一方の構造部材１００と一体に形成されていてもよく、あるいはボルト締めなどで一方の構造部材１００に取り付けられていてもよい。シャフト部材２を構成する材質としては、例えば、アルミニウム、鉄材、銅、真鍮などの金属；エラストマー；プラスチックなどが挙げられる。 The outer peripheral surface of the shaft member 2 may be a smooth surface or a fine uneven surface (rough surface). The corner portion of the shaft member 2 may be chamfered. The shaft member 2 may be formed integrally with one structural member 100 or may be attached to one structural member 100 by bolting or the like. Examples of the material constituting the shaft member 2 include metals such as aluminum, iron, copper, and brass; elastomers; plastics and the like.
なお、シャフト部材２は円柱状であるが、本発明はこれに限定されず、シャフト部材は、角柱状や一端部から他端部側にかけてテーパー形状などであってもよい。 The shaft member 2 has a cylindrical shape, but the present invention is not limited to this, and the shaft member may have a prismatic shape or a tapered shape from one end to the other end.
（ハウジング部材３）
ハウジング部材３は、図２（ａ）に示すように、他方の構造部材１０１に取り付けられる。このハウジング部材３は、シャフト部材２を嵌入させる貫通した孔部３ａが形成された円筒状本体部３ｂと、他方の構造部材１０１に取り付けられるフランジ部３ｃとを有する。フランジ部３ｃは、他方の構造部材１０１に取り付けるための取り付け孔３ｄを有する。
(Housing member 3)
The housing member 3 is attached to the other structural member 101 as shown in FIG. The housing member 3 has a cylindrical main body portion 3b in which a through hole 3a into which the shaft member 2 is inserted is formed, and a flange portion 3c attached to the other structural member 101. The flange portion 3 c has an attachment hole 3 d for attachment to the other structural member 101.
ハウジング部材３は、孔部３ａが形成された円筒状本体部３ｂと、フランジ部３ｃとを有するが、本発明はこれに限定されない。例えば、孔部３ａは非貫通孔であってもよい。なお、ハウジング部材３は、他方の構造部材１０１と一体に形成されていてもよい。 Although the housing member 3 has a cylindrical main body 3b in which a hole 3a is formed and a flange 3c, the present invention is not limited to this. For example, the hole 3a may be a non-through hole. The housing member 3 may be formed integrally with the other structural member 101.
（摺動部材４）
摺動部材４は、弾性材と布材とを一体化したものである。本実施形態においては、摺動部材４は孔部３ａの内周面全体に取り付けられているが、孔部３ａの内周面における必要な摺動面のみに取り付けられていてもよい。なお、摺動部材４は孔部３ａの内周面でなく、シャフト部材２の外周面に取り付けてもよい。
(Sliding member 4)
The sliding member 4 is formed by integrating an elastic material and a cloth material. In the present embodiment, the sliding member 4 is attached to the entire inner peripheral surface of the hole 3a, but may be attached only to a necessary sliding surface on the inner peripheral surface of the hole 3a. The sliding member 4 may be attached to the outer peripheral surface of the shaft member 2 instead of the inner peripheral surface of the hole 3a.
摺動部材４の厚みは、摩擦ダンパー１が所望の減衰効果を発現するように適宜調整することができるが、孔部３ａの内径からシャフト部材２の外径を差し引いた減算値の２分の１以上の厚みであるのが好ましく、これにより、シャフト部材２およびハウジング部材３の軸方向への相対移動により、摺動部材４が、シャフト部材２の外周面に接触摺動して、十分な摩擦力を発生できるようになる。ここで、摺動部材４の厚みとは、孔部３ａの径方向の厚みをいう。 The thickness of the sliding member 4 can be adjusted as appropriate so that the friction damper 1 exhibits a desired damping effect. However, the thickness of the sliding member 4 is two times the subtracted value obtained by subtracting the outer diameter of the shaft member 2 from the inner diameter of the hole 3a. It is preferable that the thickness is 1 or more. This allows the sliding member 4 to contact and slide on the outer peripheral surface of the shaft member 2 by the relative movement of the shaft member 2 and the housing member 3 in the axial direction. A friction force can be generated. Here, the thickness of the sliding member 4 refers to the thickness of the hole 3a in the radial direction.
弾性材は、主に、布材をハウジング部材３の孔部３ａの内周面上に保持し、シャフト部材２とハウジング部材３の孔部３ａとの嵌合部に押圧力を付与し、それにより、振動のない通常状態においてシャフト部材２およびハウジング部材３をふらつきなく安定な嵌合状態を維持できるようになる。 The elastic material mainly holds the cloth material on the inner peripheral surface of the hole 3a of the housing member 3, and applies a pressing force to the fitting portion between the shaft member 2 and the hole 3a of the housing member 3, Accordingly, the shaft member 2 and the housing member 3 can be maintained in a stable fitting state without wobbling in a normal state without vibration.
弾性材の材質としては、例えば、天然ゴム、ニトリルゴム、クロロプレンゴム、ハイパロン、ポリブタジエンゴム、エチレン−プロピレンゴム（ＥＰＭ）、エチレン−プロピレン−ジエン三元共重合体（ＥＰＤＭ）、水素添加アクリロニトリルブタジエンゴム（Ｈ−ＮＢＲ）、ミラブルウレタン、熱硬化性ポリウレタン、熱可塑性ポリウレタン、熱可塑性ポリエステルなどのエラストマーが挙げられる。弾性材には、加硫剤、加硫促進助剤および補強剤が配合されてもよい。加硫剤としては、例えば、ジクミルパーオキサイドなどの有機過酸化物、有機硫黄化合物、金属酸化物などが挙げられる。加硫促進助剤としては、例えば、ステアリン酸などの脂肪酸、金属酸化物などが挙げられる。補強剤としては、例えば、カーボンブラック、ホワイトカーボンなどが挙げられる。さらに、例えば、老化防止剤、充填剤、可塑剤、粘着剤などもまた配合され得る。 Examples of the elastic material include natural rubber, nitrile rubber, chloroprene rubber, hyperon, polybutadiene rubber, ethylene-propylene rubber (EPM), ethylene-propylene-diene terpolymer (EPDM), and hydrogenated acrylonitrile butadiene rubber. Examples thereof include elastomers such as (H-NBR), millable urethane, thermosetting polyurethane, thermoplastic polyurethane, and thermoplastic polyester. The elastic material may be blended with a vulcanizing agent, a vulcanization acceleration aid and a reinforcing agent. Examples of the vulcanizing agent include organic peroxides such as dicumyl peroxide, organic sulfur compounds, and metal oxides. Examples of the vulcanization acceleration aid include fatty acids such as stearic acid, metal oxides, and the like. Examples of the reinforcing agent include carbon black and white carbon. Furthermore, for example, anti-aging agents, fillers, plasticizers, pressure-sensitive adhesives and the like can also be blended.
弾性材のハウジング部材３の孔部３ａの内周面への取り付け方法としては、例えば、接着剤を用いた方法などが挙げられる。 Examples of a method of attaching the elastic material to the inner peripheral surface of the hole 3a of the housing member 3 include a method using an adhesive.
布材は、主に、シャフト部材２の外周面と接触摺動し、振動の減衰効果を発現させるものである。布材の組織としては、特に限定されず、例えば織物布、編物布、不織布などが挙げられ、なかでも織物布、編物布または不織布であるのが好ましい。布材の目付け量は、特に限定されず、通常２０〜２００ｇ／ｍ２である。 The cloth material mainly contacts and slides with the outer peripheral surface of the shaft member 2 to develop a vibration damping effect. The structure of the cloth material is not particularly limited, and examples thereof include a woven cloth, a knitted cloth, and a non-woven cloth. Among them, a woven cloth, a knitted cloth, and a non-woven cloth are preferable. The fabric weight of the cloth material is not particularly limited, and is usually 20 to 200 g / m 2 .
布材を構成する繊維としては、例えばナイロン繊維、アラミド繊維、ポリエステル繊維、ガラス繊維、炭素繊維、テフロン（登録商標）繊維、液晶ポリマー繊維、綿糸などが挙げられる。 Examples of the fiber constituting the cloth material include nylon fiber, aramid fiber, polyester fiber, glass fiber, carbon fiber, Teflon (registered trademark) fiber, liquid crystal polymer fiber, and cotton yarn.
弾性材と布材の一体化は、例えば、接着剤を用いて弾性材の表面に布材を貼り付ける方法；加圧して布材の織り目や編み目に弾性材が浸透した状態で弾性材を加熱硬化させる方法などが挙げられる。摺動部材４を孔部３ａの内周面に形成するにあたっては、あらかじめ弾性材と布材の一体化した後、孔部３ａの内周面に貼り合わせてもよく、あるいは、孔部３ａの内周面への貼り合わせと同時に、弾性材と布材の一体化を行ってもよい。 For example, the elastic material and the cloth material can be integrated by, for example, a method of attaching the cloth material to the surface of the elastic material using an adhesive; heating the elastic material in a state where the elastic material penetrates into the weave or knitting of the cloth material by applying pressure. Examples include a curing method. In forming the sliding member 4 on the inner peripheral surface of the hole 3a, the elastic material and the cloth material may be integrated in advance and then bonded to the inner peripheral surface of the hole 3a. Simultaneously with the bonding to the inner peripheral surface, the elastic material and the cloth material may be integrated.
以上のようにして、内周面に摺動部材４を取り付けたハウジング部材３の孔部３ａにシャフト部材２を嵌入して、ダンパー１を得る。 As described above, the damper 1 is obtained by inserting the shaft member 2 into the hole 3a of the housing member 3 having the sliding member 4 attached to the inner peripheral surface.
〔摩擦ダンパー１の動作〕
ダンパー１は、下記（ａ），（ｂ）の動作をする。
（ａ）両構造部材１００、１０１が実質的に無振動の場合、主にシャフト部材２の嵌合部にかかる弾性材の押圧力や振動吸収性能および布材の摩擦力により、摩擦ダンパー１は、シャフト部材２およびハウジング部材３の相対移動を制止させ、その状態を維持させる。
（ｂ）両構造部材１００、１０１の一方が振動した場合、摺動部材４と、シャフト部材２の外周面との接触摺動により発生する摩擦力により、振動が減衰される。
[Operation of friction damper 1]
The damper 1 performs the following operations (a) and (b).
(A) When both the structural members 100 and 101 are substantially free of vibration, the friction damper 1 is mainly caused by the pressing force and vibration absorbing performance of the elastic material applied to the fitting portion of the shaft member 2 and the frictional force of the cloth material. The relative movement of the shaft member 2 and the housing member 3 is stopped, and the state is maintained.
(B) When one of the structural members 100 and 101 vibrates, the vibration is attenuated by the frictional force generated by the sliding contact between the sliding member 4 and the outer peripheral surface of the shaft member 2.
〔本発明の他の実施形態〕
本発明の他の実施形態に係る摩擦ダンパーを図３に示す。図３において、図１，２で示した摩擦ダンパー１を構成する各部材と同一のものには同一の符号を付して、説明を省略する。
この摩擦ダンパー１０は、外周面に溝部２ｃを有するシャフト部材１２と、孔部３ａの内周面に突条部３ｄを有するハウジング部材１３とを用いている。そして、溝部２ｃと突条部３ｄとが嵌合することにより、シャフト部材１２の外周面と摺動部材４の表面との接触面積が十分に広くなり、優れた減衰効果を発現することができる。
[Other Embodiments of the Present Invention]
FIG. 3 shows a friction damper according to another embodiment of the present invention. In FIG. 3, the same members as those constituting the friction damper 1 shown in FIGS.
This friction damper 10 uses a shaft member 12 having a groove 2c on the outer peripheral surface and a housing member 13 having a protrusion 3d on the inner peripheral surface of the hole 3a. Then, by fitting the groove 2c and the protrusion 3d, the contact area between the outer peripheral surface of the shaft member 12 and the surface of the sliding member 4 is sufficiently wide, and an excellent damping effect can be exhibited. .
ハウジング部材１３の孔部３ａの内周面に形成された突条部３ｄは、溝部２ｃと嵌合することができるように形成されている。その他は、前述の実施形態と同様である。 The protrusion 3d formed on the inner peripheral surface of the hole 3a of the housing member 13 is formed so as to be able to fit into the groove 2c. Others are the same as the above-mentioned embodiment.
〔本発明のさらに他の実施形態〕
本発明のさらに他の実施形態に係るダンパーを図４に示す。なお、図４において、図１，２に示す摩擦ダンパー１を構成する各部材と同一のものには同一の符号を付して説明を省略する。
[Still another embodiment of the present invention]
A damper according to still another embodiment of the present invention is shown in FIG. In FIG. 4, the same members as those constituting the friction damper 1 shown in FIGS.
この摩擦ダンパー２０は、円柱状のシャフト部材２２と、シャフト部材２２を嵌入させる第一孔部３ａを有する第一ハウジング部材２３と、シャフト部材２２を嵌入させる第二孔部３ａを有する第二ハウジング部材２３´と、第一ハウジング部材２３および第二ハウジング部材２３´の各孔部３ａの内周面に取り付けられた摺動部材４とを備える。
シャフト部材２２は、一端が摺動部材４を介して第一ハウジング部材２３の孔部３ａ内に嵌入され、他端が摺動部材４を介して第二ハウジング部材２３´の孔部３ａ内に嵌入されている。
The friction damper 20 includes a cylindrical shaft member 22, a first housing member 23 having a first hole 3 a into which the shaft member 22 is fitted, and a second housing having a second hole 3 a into which the shaft member 22 is fitted. A member 23 'and a sliding member 4 attached to the inner peripheral surface of each hole 3a of the first housing member 23 and the second housing member 23' are provided.
One end of the shaft member 22 is fitted into the hole 3 a of the first housing member 23 via the sliding member 4, and the other end is inserted into the hole 3 a of the second housing member 23 ′ via the sliding member 4. It is inserted.
シャフト部材２２は、円柱体である他は、シャフト部材２と同様である。第一ハウジング部材２３と第二ハウジング部材２３´とは同一のものであり、ハウジング部材３と同様である。第一ハウジング部材２３のフランジ部３ｃは、一方の構造部材１００に取り付けられており、第二ハウジング部材２３´のフランジ部３ｃは、他方の構造部材１０１に取り付けられている。
なお、摩擦ダンパー２０では、第一ハウジング部材２３と第二ハウジング部材２３´とは同一のものであるが、本発明ではこれに限定されず、異なる形状、サイズ等であってもよい。
The shaft member 22 is the same as the shaft member 2 except that it is a cylindrical body. The first housing member 23 and the second housing member 23 ′ are the same and are the same as the housing member 3. The flange portion 3 c of the first housing member 23 is attached to one structural member 100, and the flange portion 3 c of the second housing member 23 ′ is attached to the other structural member 101.
In the friction damper 20, the first housing member 23 and the second housing member 23 ′ are the same, but the present invention is not limited to this, and may have different shapes and sizes.
〔摩擦ダンパー２０の動作〕
摩擦ダンパー２０は、下記（ｃ），（ｄ）の動作をする。
（ｃ）両構造部材１００、１０１が実質的に無振動の場合、主にシャフト部材２２の嵌合部にかかる押圧力や弾性材の振動吸収性能および布材と嵌合部の相手材との摩擦力により、摩擦ダンパー２０は、シャフト部材２２並びに第１ハウジング部材２３および第２ハウジング部材２３´の相対移動を制止させ、その状態を維持させる。
（ｄ）両構造部材１００、１０１の一方が振動した場合、主に、摺動部材３４と、シャフト部材２２の外周面との接触摺動により発生する摩擦力により、摩擦ダンパー２０は、振動が減衰される。
[Operation of friction damper 20]
The friction damper 20 performs the following operations (c) and (d).
(C) When both structural members 100 and 101 are substantially free of vibration, mainly the pressing force applied to the fitting portion of the shaft member 22, the vibration absorption performance of the elastic material, and the cloth material and the mating material of the fitting portion Due to the frictional force, the friction damper 20 stops the relative movement of the shaft member 22, the first housing member 23, and the second housing member 23 ', and maintains the state.
(D) When one of the structural members 100 and 101 vibrates, the friction damper 20 vibrates mainly due to frictional force generated by contact sliding between the sliding member 34 and the outer peripheral surface of the shaft member 22. Attenuated.
〔本発明のさらに他の実施形態〕
本発明では、例えば、摺動部材４がハウジング部材３の孔部３ａの内周面でなくシャフト部材２の外周面に取り付けられていてもよく、摺動部材４がハウジング部材３の孔部３ａの内周面と共にシャフト部材２の外周面にも取り付けられていてもよい。同様に、摺動部材４が第１および第２ハウジング部材２３、２３´の内周面３ａでなくシャフト部材２２の外周面に取り付けられていてもよく、あるいは、摺動部材４が第１および第２ハウジング部材２３、２３´の内周面３ａと共にシャフト部材２２の外周面にも取り付けられていてもよい。
[Still another embodiment of the present invention]
In the present invention, for example, the sliding member 4 may be attached to the outer peripheral surface of the shaft member 2 instead of the inner peripheral surface of the hole portion 3 a of the housing member 3, and the sliding member 4 is attached to the hole portion 3 a of the housing member 3. It may be attached to the outer peripheral surface of the shaft member 2 together with the inner peripheral surface. Similarly, the sliding member 4 may be attached to the outer peripheral surface of the shaft member 22 instead of the inner peripheral surface 3a of the first and second housing members 23, 23 ′, or the sliding member 4 may be attached to the first and second housing members 23, 23 ′. You may attach to the outer peripheral surface of the shaft member 22 with the internal peripheral surface 3a of 2nd housing member 23,23 '.
本発明の摩擦ダンパーは、乗り物、産業機械などの構造部材間に使用され、例えば、運転中に発生する幅広い範囲の振動周波数の振動を減衰させることができる。それによって運転中の騒音を抑制できる。
乗り物としては、例えば、自動車、モータバイク、自転車、アミューズメント用乗り物、モータボート、鉄道車両、船舶、航空機、宇宙船などが挙げられる。産業機械としては、例えば、一般的な機械、工作機、ロボット、振動を嫌う生産設備、半導体製造装置、チップマウンターなどが挙げられる。
The friction damper of the present invention is used between structural members such as vehicles and industrial machines, and can attenuate vibrations in a wide range of vibration frequencies generated during operation, for example. Thereby, noise during driving can be suppressed.
Examples of the vehicle include an automobile, a motorbike, a bicycle, an amusement vehicle, a motor boat, a railway vehicle, a ship, an aircraft, and a spacecraft. Examples of industrial machines include general machines, machine tools, robots, production equipment that dislikes vibrations, semiconductor manufacturing apparatuses, chip mounters, and the like.
１，１０，２０ 摩擦ダンパー
２，１２，２２ シャフト部材
３，１３， ハウジング部材
２３ 第一ハウジング部材
２３´ 第二ハウジング部材
４ 摺動部材
1, 10, 20 Friction damper 2, 12, 22 Shaft member 3, 13, Housing member 23 First housing member 23 'Second housing member 4 Slide member
Claims (8)
一方の構造部に設けられるシャフト部材と、
他方の構造部材に設けられ、前記シャフト部材が嵌入した孔部を有するハウジング部材と、
前記シャフト部材の外周面および孔部内周面の少なくとも一方に設けられた、弾性材および布材が一体化されてなる摺動部材とを備え、
前記シャフト部材およびハウジング部材の前記シャフト部材の軸方向への相対移動により、前記シャフト部材の外周面と前記孔部の内周面とが摺動部材を介して接触摺動し、摩擦力を発生させるようにしたことを特徴とする摩擦ダンパー。 A friction damper for dampening vibration between structural members,
A shaft member provided in one structure,
A housing member provided on the other structural member and having a hole into which the shaft member is fitted;
Provided with at least one of the outer peripheral surface of the shaft member and the inner peripheral surface of the hole, and a sliding member formed by integrating an elastic material and a cloth material,
Due to the relative movement of the shaft member and the housing member in the axial direction of the shaft member, the outer peripheral surface of the shaft member and the inner peripheral surface of the hole portion contact and slide through the sliding member to generate a frictional force. A friction damper characterized in that
シャフト部材と、
一方の構造部材に設けられ、前記シャフト部材の一端部が嵌入した第一孔部を有する第一ハウジング部材と、
他方の構造部材に設けられ、前記シャフト部材の他端部が嵌入した第二孔部を有する第二ハウジング部材と、
前記シャフト部材の外周面並びに前記第一孔部および第二孔部の内周面の少なくとも一方の面に設けられた、弾性材および布材が一体化されてなる摺動部材とを備え、
前記シャフト部材並びに第一および第二ハウジング部材の前記シャフト部材の軸方向への相対移動により、前記シャフト部材の外周面と前記第一および第二孔部の内周面とが摺動部材を介して接触摺動し、摩擦力を発生させるようにしたことを特徴とする摩擦ダンパー。 A friction damper for dampening vibration between structural members,
A shaft member;
A first housing member provided on one structural member and having a first hole into which one end of the shaft member is fitted;
A second housing member provided on the other structural member and having a second hole into which the other end of the shaft member is fitted;
A sliding member formed by integrating an elastic material and a cloth material provided on at least one of the outer peripheral surface of the shaft member and the inner peripheral surface of the first hole portion and the second hole portion;
Due to the relative movement of the shaft member and the first and second housing members in the axial direction of the shaft member, the outer peripheral surface of the shaft member and the inner peripheral surfaces of the first and second hole portions are interposed via a sliding member. The friction damper is characterized in that it slides in contact and generates a friction force.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10205995B2 (en) | 1997-09-05 | 2019-02-12 | Rovi Guides, Inc. | Program guide application interface system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523219Y2 (en) * | 1972-10-12 | 1977-01-24 | ||
| JPS5038365A (en) * | 1973-08-08 | 1975-04-09 | ||
| DE2942716A1 (en) * | 1979-10-23 | 1981-05-21 | Fritz Bauer + Söhne oHG, 8503 Altdorf | FRICTION DAMPER |
| DE3811742A1 (en) * | 1988-04-08 | 1989-10-19 | Bauer Fritz & Soehne Ohg | FRICTION DAMPER |
| DE4419870A1 (en) * | 1994-06-07 | 1995-12-14 | Suspa Compart Ag | Friction dampers, in particular for washing machines with a spin cycle |
| US6247687B1 (en) * | 1999-03-29 | 2001-06-19 | Lord Corporation | Elastomer damper |
| TW200416358A (en) * | 2002-12-12 | 2004-09-01 | Fukoku Kk | Damper |
| JP4626189B2 (en) * | 2003-06-03 | 2011-02-02 | 株式会社大林組 | Seismic reinforcement structure and structure provided with this seismic reinforcement structure |
| PL1637640T3 (en) * | 2004-09-15 | 2008-08-29 | Suspa Holding Gmbh | Damper |
| JP4842594B2 (en) * | 2005-09-05 | 2011-12-21 | 清水建設株式会社 | Structure damping device |
| JP5913967B2 (en) * | 2011-12-27 | 2016-05-11 | 日立オートモティブシステムズ株式会社 | gas spring |
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| US10205995B2 (en) | 1997-09-05 | 2019-02-12 | Rovi Guides, Inc. | Program guide application interface system |
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