JP2009299857A - Vibration damper for automobile seat and automobile seat supported by vibration damper - Google Patents

Vibration damper for automobile seat and automobile seat supported by vibration damper Download PDF

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JP2009299857A
JP2009299857A JP2008157300A JP2008157300A JP2009299857A JP 2009299857 A JP2009299857 A JP 2009299857A JP 2008157300 A JP2008157300 A JP 2008157300A JP 2008157300 A JP2008157300 A JP 2008157300A JP 2009299857 A JP2009299857 A JP 2009299857A
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automobile seat
vibration
leaf spring
outer edge
automobile
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JP5104574B2 (en
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Akihiko Okimura
明彦 沖村
Yoshiteru Igarashi
美照 五十嵐
Hisahiro Hotta
尚弘 堀田
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Oiles Industry Co Ltd
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Oiles Industry Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration damper for an automobile seat which can improve riding comfort, and an automobile seat supported by the vibration damper. <P>SOLUTION: The vibration damper 1 for the automobile seat is equipped with a vibration input receiving body 11 which is formed to be coupled to an automobile seat 6 and which transmits vibration input in a laminating direction V of a laminated body 4 of the automobile seat 6 relative to an automobile body 7 to a center part 10 which is a portion surrounded by an outer edge 5 of the plate spring 2A on one end side in the laminating direction V of plate springs 2A-2D of the laminated body 4 to elastically vibrate the plate spring 2A on one end side in the laminating direction V taking the outer edge 5 as a fulcrum, and with a vibration transmission means 12 which is interposed between each of the plate springs 2A-2D so as to transmit the vibration input transmitted to the plate spring 2A on one end side to the center part 10 which is a portion surrounded by respective outer edges 5 of the other plate springs 2B, 2C, 2D to elastically vibrate the other plate springs 2B-2D taking the outer edges 5 as a fulcrum. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、自動車シートの振動を低減するための防振装置及びその防振装置で支持された自動車シートに関する。   The present invention relates to a vibration isolator for reducing vibration of an automobile seat and an automobile seat supported by the vibration isolator.

特開２００４−１２９７５１公報JP 2004-129551 A

車体に設けられた自動車シートは、路面からの振動に加えてエンジンからの振動を受けて振動するが、斯かるエンジンからの振動に基づく自動車シートの振動は、着座者に不快なものとなり乗り心地を劣化させるために、自動車シートの振動の低減ために種々の対策が採られている。   Automobile seats mounted on the vehicle body vibrate in response to vibrations from the engine in addition to vibrations from the road surface. Therefore, various measures are taken to reduce the vibration of the automobile seat.

ところで、最近の自動車のエンジンでは、燃費効率の向上のためにそのアイドル回転数を下げる傾向にあり、斯かるアイドル回転数が低下されたエンジンから自動車シートに加わる振動は、その振動周波数がフレーム上の自動車シートの機械的な共振点と合致して自動車シートを大きく振動させる虞がある。   By the way, in recent automobile engines, there is a tendency to reduce the idling speed for improving the fuel efficiency, and the vibration applied to the automobile seat from the engine with the idling speed reduced is such that the vibration frequency is on the frame. There is a risk that the automobile seat will vibrate greatly in accordance with the mechanical resonance point of the automobile seat.

これに対処するために、フレーム上の自動車シートの機械的な共振点を低下させるために自動車シート自体の重量増加等を図る場合があるが、燃費効率の向上のための自動車の軽量化に鑑みてその重量増加には限界がある上に、コストアップを招来する結果、必ずしも適切な対処とは言い難い。   In order to cope with this, there is a case where the weight of the automobile seat itself is increased in order to reduce the mechanical resonance point of the automobile seat on the frame, but in view of reducing the weight of the automobile for improving fuel efficiency. In addition, there is a limit to the increase in weight, and as a result of increasing the cost, it is not necessarily an appropriate measure.

本発明は上記諸点に鑑みなされたものであり、その目的とするところは、自動車シート自体の重量を増加させないでも、フレーム上の自動車シートの機械的な共振点を低下させることができる上に、エンジンからの僅かな振動でも自動車シートの振動を効果的に緩衝できる結果、乗り心地を向上させることができる自動車シート用の防振装置及びその防振装置で支持された自動車シートを提供することにある。   The present invention has been made in view of the above points, and the object of the present invention is to reduce the mechanical resonance point of the automobile seat on the frame without increasing the weight of the automobile seat itself. To provide a vibration isolator for an automobile seat that can improve the riding comfort as a result of effectively buffering the vibration of the automobile seat even with a slight vibration from the engine, and an automobile seat supported by the vibration isolator. is there.

本発明の自動車シートと車体との間に介在される自動車シート用の防振装置は、複数枚の板ばねを当該板ばね間に隙間をもって積層した積層体と、この積層体の各板ばねの外縁部を支持すると共に自動車シート及び車体のうちの一方に連結されるようになっている支持手段と、自動車シート及び車体のうちの他方に連結されるようになっていると共に車体に対する自動車シートの相対的な積層体の積層方向の振動入力を積層体の複数の板ばねのうちの積層方向の一端側の板ばねの外縁部に囲まれる部位に附加して当該一端側の板ばねをその外縁部を支点として弾性的に振動させる振動入力受容体と、該一端側の板ばねに伝達された振動入力を残る各板ばねの外縁部に囲まれる部位に伝達して当該残る板ばねをその外縁部を支点として弾性的に振動させるように板ばね間に介在された振動伝達手段とを具備している。   An anti-vibration device for an automobile seat interposed between an automobile seat and a vehicle body of the present invention includes a laminated body in which a plurality of leaf springs are laminated with a gap between the leaf springs, and each leaf spring of the laminated body. Support means for supporting the outer edge and being connected to one of the vehicle seat and the vehicle body, and being connected to the other of the vehicle seat and the vehicle body and of the vehicle seat relative to the vehicle body The relative vibration input in the stacking direction of the laminated body is added to a portion surrounded by the outer edge of the leaf spring on one end side in the stacking direction among the plurality of leaf springs of the stacked body, and the leaf spring on the one end side is added to the outer edge thereof. A vibration input receiver that elastically vibrates with the fulcrum as a fulcrum, and the vibration input transmitted to the leaf spring on one end side is transmitted to a portion surrounded by the outer edge of each remaining leaf spring, and the remaining leaf spring is transmitted to the outer edge Elastically using the part as a fulcrum And comprising a vibration transmitting means interposed between the leaf spring so as to motion.

斯かる防振装置によれば、自動車シート及び車体のうちの一方に連結されるようになっている支持手段が積層体の各板ばねの外縁部を支持し、自動車シート及び車体のうちの他方に連結されるようになっている振動入力受容体が車体に対する自動車シートの相対的な積層体の積層方向の振動入力を積層体の複数の板ばねのうちの積層方向の一端側の板ばねの外縁部に囲まれる部位に附加し、振動伝達手段が一端側の板ばねに附加された振動入力を残る各板ばねの外縁部に囲まれる部位に伝達して当該板ばねをその外縁部を支点として弾性的に振動させるように各板ばね間に介在されているために、車体に対する自動車シートの相対的な振動入力の生起において、積層体の各板ばね同士の全面での摩擦を回避できて各板ばねがその外縁部を支点として弾性的に振動される結果、積層体を略理想的な弾性体として動作させることができ、而して、自動車シートを支持した上で、車体に対する自動車シートの相対的な振動入力に対して各板ばね同士の摩擦に影響されないで弾性的に応答でき、自動車シート自体の重量を増加させないでも、フレーム上の自動車シートの機械的な共振点を低下させることができる上に、エンジンからの僅かな振動でも自動車シートの振動を緩衝でき、乗り心地を向上させることができる。   According to such a vibration isolator, the supporting means connected to one of the automobile seat and the vehicle body supports the outer edge portion of each leaf spring of the laminate, and the other of the automobile seat and the vehicle body. The vibration input receptor is connected to the vehicle body so that the vibration input in the stacking direction of the laminated body of the automobile seat relative to the vehicle body Added to the part surrounded by the outer edge, the vibration transmitting means transmits the vibration input added to the leaf spring on one end side to the part surrounded by the outer edge of each leaf spring, and the leaf spring is supported at the outer edge. As a result, the friction between the leaf springs of the laminate can be avoided in the occurrence of relative vibration input of the automobile seat with respect to the vehicle body. Each leaf spring supports its outer edge As a result, the laminated body can be operated as a substantially ideal elastic body, so that the automobile seat is supported and the relative vibration input of the automobile seat with respect to the vehicle body is supported. It is possible to respond elastically without being affected by the friction between the leaf springs, and to reduce the mechanical resonance point of the automobile seat on the frame without increasing the weight of the automobile seat itself. Even a slight vibration can buffer the vibration of the automobile seat and improve the riding comfort.

積層体の板ばねは、一つの例では、円盤状又は矩形状であるが、本発明は、これに限定されず、楕円状又は多角形状であってもよい。   In one example, the leaf spring of the laminated body has a disk shape or a rectangular shape, but the present invention is not limited to this, and may be an elliptical shape or a polygonal shape.

好ましい例では、支持手段は、各板ばねの外縁部をその外周面との間に隙間をもって囲繞した内周面を有して積層体を収容した筒体と、積層体の積層方向における各板ばねの外縁部間に配されていると共に各板ばね間の隙間を保持する隙間保持体と、複数の板ばねのうちの積層方向の他端側の板ばねの外縁部に接触して当該他端側の板ばねを筒体の内部で支持する支持体とを具備しており、この場合、隙間保持体は、筒体の内周面に一体的に設けられている突部を有していても、筒体とは別体に設けられた環状体を有していても、積層体の積層方向における板ばねの外縁部の一方の面に一体的に設けられている突部を有していてもよい。   In a preferred example, the supporting means includes a cylindrical body that has an inner peripheral surface that surrounds the outer edge of each leaf spring with a gap between the outer peripheral surface and accommodates the laminate, and each plate in the stacking direction of the laminate. A gap holder that is arranged between the outer edge portions of the spring and holds a gap between the leaf springs, and the other edge portion of the plurality of leaf springs in contact with the outer edge portion of the leaf spring on the other end side in the stacking direction. And a support for supporting the leaf spring on the end side inside the cylindrical body. In this case, the gap holding body has a protrusion integrally provided on the inner peripheral surface of the cylindrical body. Even if it has an annular body that is provided separately from the cylinder, it has a protrusion that is provided integrally on one surface of the outer edge of the leaf spring in the stacking direction of the stack. It may be.

振動入力受容体は、好ましい例では、防振対象である自動車シートに連結するための連結部を有した本体と、この本体に一体的に設けられていると共に一端側の板ばねの外縁部に囲まれる部位に接触する突起部とを具備している。   In a preferred example, the vibration input receiver has a main body having a connecting portion for connecting to an automobile seat that is a vibration-proof object, and is provided integrally with the main body and at the outer edge of the leaf spring on one end side. And a projecting portion that comes into contact with the enclosed portion.

振動伝達手段の一例は、板ばねに一体的に設けられている突部を有しており、振動伝達手段の他の一例は、板ばねとは別体に設けられた板体を有している。   An example of the vibration transmission means has a protrusion provided integrally with the leaf spring, and another example of the vibration transmission means has a plate body provided separately from the leaf spring. Yes.

本発明の自動車シートは、車体に、少なくとも後方で前記のいずれかに記載の自動車シート用の防振装置を介して支持されている。   The automobile seat of the present invention is supported on the vehicle body at least behind the vehicle via the vibration isolator for an automobile seat described above.

斯かる自動車シートでは、エンジンからの僅かな振動でも防振装置で緩衝される結果、乗り心地の極めて向上したものとなる。   In such an automobile seat, even a slight vibration from the engine is buffered by the vibration isolator, so that the ride comfort is extremely improved.

本発明によれば、自動車シート自体の重量を増加させないでも、フレーム上の自動車シートの機械的な共振点を低下させることができる上に、エンジンからの僅かな振動でも自動車シートの振動を効果的に緩衝できる結果、乗り心地を向上させることができる自動車シート用の防振装置及びその防振装置で支持された自動車シートを提供することができる。   According to the present invention, the mechanical resonance point of the automobile seat on the frame can be lowered without increasing the weight of the automobile seat itself, and the vibration of the automobile seat can be effectively reduced even by a slight vibration from the engine. As a result, it is possible to provide an anti-vibration device for an automobile seat that can improve riding comfort and an automobile seat supported by the anti-vibration device.

次に、本発明及びその実施の形態を、図に示す好ましい実施例に基づいて更に詳細に説明する。なお、本発明はこれらの実施例に何等限定されないのである。   Next, the present invention and its embodiments will be described in more detail based on preferred embodiments shown in the drawings. In addition, this invention is not limited to these Examples at all.

図１から図４において、本例の自動車シート用の防振装置１は、複数枚、本例では４枚の円盤状の板ばね２Ａ〜２Ｄを当該板ばね２Ａ〜２Ｄの夫々間に隙間３をもって積層した積層体４と、積層体４の板ばね２Ａ〜２Ｄの夫々の円環状の外縁部５を支持すると共に自動車シート６及び車体７のうちの一方、本例では車体７に連結されるようになっている支持手段８と、自動車シート６及び車体７のうちの他方、本例では自動車シート６に連結されるようになっていると共に車体７に対する自動車シート６の相対的な積層体４の積層方向Ｖの振動入力を積層体４の板ばね２Ａ〜２Ｄのうちの積層方向Ｖの一端側の板ばね２Ａの外縁部５に囲まれる部位である中央部１０に伝達して当該一端側の板ばね２Ａをその外縁部５を支点として弾性的に積層方向Ｖに振動させる振動入力受容体１１と、一端側の板ばね２Ａに伝達された振動入力を残る板ばね２Ｂ、２Ｃ及び２Ｄの夫々の外縁部５に囲まれる部位である中央部１０に伝達して当該残る板ばね２Ｂ、２Ｃ及び２Ｄをその外縁部５を支点として弾性的に振動させるように板ばね２Ａ〜２Ｄの夫々の間に介在された振動伝達手段１２とを具備しており、自動車シート６と車体７との間に介在されるようになっている。   1 to 4, the vibration isolator 1 for an automobile seat according to the present example includes a plurality of disk springs 2 </ b> A to 2 </ b> D in this example, and a gap 3 between the plate springs 2 </ b> A to 2 </ b> D. The laminated body 4 and the annular outer edge portions 5 of the leaf springs 2A to 2D of the laminated body 4 are supported and one of the automobile seat 6 and the vehicle body 7, which is connected to the vehicle body 7 in this example. The supporting means 8 and the other of the vehicle seat 6 and the vehicle body 7, which are connected to the vehicle seat 6 in this example, and the laminated body 4 of the vehicle seat 6 relative to the vehicle body 7. The vibration input in the laminating direction V is transmitted to the central portion 10 that is a portion surrounded by the outer edge portion 5 of the leaf spring 2A on the one end side in the laminating direction V of the leaf springs 2A to 2D of the laminate 4 to the one end side. The leaf spring 2A is elastically stacked with the outer edge 5 as a fulcrum. The vibration input receiver 11 that vibrates in the direction V and the vibration input transmitted to the leaf spring 2A on one end side are transmitted to the central portion 10 that is a portion surrounded by the outer edge portions 5 of the remaining leaf springs 2B, 2C, and 2D. And vibration transmitting means 12 interposed between the leaf springs 2A to 2D so as to elastically vibrate the remaining leaf springs 2B, 2C and 2D with the outer edge portion 5 as a fulcrum, The vehicle seat 6 and the vehicle body 7 are interposed.

支持手段８は、板ばね２Ａ〜２Ｄの夫々の外縁部５をその円筒状の外周面２１との間に円環状の隙間２２をもって囲繞した円筒状の内周面２３を有して積層体４を内部２４に収容した筒体２５と、筒体２５の積層方向Ｖの一方の円環状の端面に径方向内方に向かって突出して一体的に形成されていると共に中央に貫通孔２６を有した内方鍔部２７と、筒体２５の積層方向Ｖの他方の円環状の端面に径方向外方に向かって突出して一体的に形成されていると共にボルト挿通用の貫通孔２８を有した外方鍔部２９と、積層体４の積層方向Ｖにおける板ばね２Ａ〜２Ｄの夫々の外縁部５間に配されていると共に板ばね２Ａ〜２Ｄの夫々間の隙間３を保持する隙間保持体３０と、板ばね２Ａ〜２Ｂの夫々のうちの積層方向Ｖの他端側の板ばね２Ｄの外縁部５に接触して当該他端側の板ばね２Ｄを筒体２５の内部２４で支持する支持体３１とを具備している。   The support means 8 has a cylindrical inner peripheral surface 23 in which each outer edge 5 of the leaf springs 2A to 2D is surrounded by an annular gap 22 between the outer peripheral portion 5 and the cylindrical outer peripheral surface 21. Is formed integrally with a cylindrical body 25 accommodated in the interior 24 and projecting radially inward on one annular end surface in the stacking direction V of the cylindrical body 25, and has a through hole 26 in the center. The inner flange portion 27 and the other annular end surface in the stacking direction V of the cylindrical body 25 are integrally formed so as to protrude radially outward and have a through hole 28 for inserting a bolt. A gap holder that is disposed between the outer flange 29 and the outer edge portions 5 of the leaf springs 2A to 2D in the stacking direction V of the laminate 4 and holds the gap 3 between the leaf springs 2A to 2D. 30 and the outside of the leaf spring 2D on the other end side in the stacking direction V of the leaf springs 2A to 2B. In contact with the part 5 is provided with a support 31 for supporting the leaf spring 2D of the other end side inside 24 of the cylinder 25.

筒体２５は、内周面２３に加えて、内周面２３よりも小径の円筒状の内周面３５を有しおり、隙間保持体３０は、積層方向Ｖにおける板ばね２Ａ〜２Ｄの夫々の間に配されていると共に筒体２５とは別体に設けられた円形の環状体３６を有しており、支持体３１は、環状体３６と同様に形成されていると共に積層方向Ｖの一方の円環状の面で板ばね２Ｄの外縁部５に接触した円形の環状体３７と、環状体３７の積層方向Ｖの他方の円環状の面に積層方向Ｖの一方の円環状の面で接触していると共に積層方向Ｖの他方の円環状の面が外方鍔部２９の積層方向Ｖの一方の端面３８と面一になっている筒部材３９とを具備している。   The cylindrical body 25 has a cylindrical inner peripheral surface 35 having a smaller diameter than the inner peripheral surface 23 in addition to the inner peripheral surface 23, and the gap holding body 30 is provided for each of the leaf springs 2 </ b> A to 2 </ b> D in the stacking direction V. The support body 31 is formed in the same manner as the annular body 36 and has one end in the stacking direction V. A circular ring body 37 that is in contact with the outer edge 5 of the leaf spring 2D at the annular surface of the ring body, and the other annular surface in the stacking direction V of the ring body 37 is in contact with one annular surface in the stacking direction V And a cylindrical member 39 in which the other annular surface in the stacking direction V is flush with one end surface 38 of the outer flange 29 in the stacking direction V.

振動入力受容体１１は、自動車シート６に連結するための連結部としての雌ねじ５１を円筒状の内周面５２に有した本体部５３と、本体部５３に積層方向Ｖの一方の端面に一体的に設けられていると共に一端側の板ばね２Ａの外縁部５に囲まれる部位である中央部１０に接触する円盤状の突起部５４と、本体部５３の円筒状の外周面５５に一体的に設けられていると共に筒体２５の内部２４に配された抜け止め用の鍔部５６とを具備している。   The vibration input receiver 11 is integrated with a main body 53 having a female thread 51 as a connecting portion for connecting to the automobile seat 6 on a cylindrical inner peripheral surface 52, and one end surface of the main body 53 in the stacking direction V. And a disc-shaped protrusion 54 that contacts the central portion 10, which is a portion surrounded by the outer edge portion 5 of the leaf spring 2 A on one end side, and a cylindrical outer peripheral surface 55 of the main body 53. And a retaining hook 56 disposed in the interior 24 of the cylindrical body 25.

本体部５３は、筒体２５の内部２４から内方鍔部２７の貫通孔２６を通って外部に突出していると共に雌ねじ５１を有した大径の円筒部６１と、円筒部６１の一端面に一体的に形成されていると共に円筒部６１よりも小径の円板部６２とを具備しており、円板部６２の一方の円形面に突起部５４が一体的に形成されている。   The main body portion 53 protrudes from the inside 24 of the cylindrical body 25 through the through hole 26 of the inner flange portion 27 to the outside, and has a large-diameter cylindrical portion 61 having an internal thread 51, and one end surface of the cylindrical portion 61. The disc portion 62 is formed integrally and has a diameter smaller than that of the cylindrical portion 61, and a protrusion 54 is integrally formed on one circular surface of the disc portion 62.

振動伝達手段１２は、板ばね２Ａ〜２Ｄとは別体に設けられた円盤状の板体６５を有しており、板ばね２Ａの中央部１０と板ばね２Ｂの中央部１０との間に配された板体６５は、これらの中央部１０に夫々円形の端面で滑り接触しており、板ばね２Ｂの中央部１０と板ばね２Ｃの中央部１０との間に配された板体６５は、これらの中央部１０に夫々円形の端面で滑り接触しており、板ばね２Ｃの中央部１０と板ばね２Ｄの中央部１０との間に配された板体６５は、これらの中央部１０に夫々円形の端面で滑り接触している。   The vibration transmitting means 12 has a disc-like plate body 65 provided separately from the leaf springs 2A to 2D, and is provided between the central portion 10 of the leaf spring 2A and the central portion 10 of the leaf spring 2B. The disposed plate bodies 65 are in sliding contact with the central portions 10 at circular end surfaces, respectively, and the plate bodies 65 disposed between the central portion 10 of the leaf spring 2B and the central portion 10 of the leaf spring 2C. Are in sliding contact with each of the central portions 10 at circular end faces, and the plate body 65 disposed between the central portion 10 of the leaf spring 2C and the central portion 10 of the leaf spring 2D is provided at these central portions. 10 are each in sliding contact with a circular end face.

以上の防振装置１は、図５及び図６に示すように、自動車シート６と車体７との間に介在される。自動車シート６は、シート部７１と、シート部７１に傾動自在に取付けられた背凭れ部７２と、背凭れ部７２に傾動自在に取付けられたヘッドレスト７３とを有しており、シート部７１の前部において多少の弾性的な撓みが可能な支持部材７４を介して、そして、シート部７１の後部において前後部方向に対して直交する方向に配列された一対の支持機構７５及び防振装置１の夫々を介して車体７に支持されている。   The above vibration isolator 1 is interposed between the vehicle seat 6 and the vehicle body 7 as shown in FIGS. The vehicle seat 6 includes a seat portion 71, a backrest portion 72 that is tiltably attached to the seat portion 71, and a headrest 73 that is tiltably attached to the backrest portion 72. A pair of support mechanisms 75 and a vibration isolator 1 arranged in a direction orthogonal to the front-rear direction at the rear part of the seat part 71 via a support member 74 capable of some elastic deflection at the front part. Are supported by the vehicle body 7 via each of the above.

シート部７１は、クッション材からなるシート部本体７６と、シート部本体７６が固着されていると共にシート部本体７６を支持した下フレーム７７を具備している。   The seat portion 71 includes a seat portion body 76 made of a cushion material, and a lower frame 77 to which the seat portion body 76 is fixed and supports the seat portion body 76.

支持部材７４は、一端でボルト７８を介して車体７に固着されていると共に他端でボルト又は溶接を介して下フレーム７７の前部に固着されており、各支持機構７５は、一端で下フレーム７７の後部に固着されていると共に好ましくは支持部材７４と同様に多少の弾性的な撓みが可能な支持部材７９と、雌ねじ５１に螺合して支持部材７９の他端を本体部５３の円筒部６１に連結するボルト８０とを具備している。   The support member 74 is fixed to the vehicle body 7 via a bolt 78 at one end, and is fixed to the front portion of the lower frame 77 via a bolt or welding at the other end. A support member 79 fixed to the rear portion of the frame 77 and preferably capable of some elastic bending similarly to the support member 74, and the other end of the support member 79 is screwed into the female screw 51 and the other end of the main body 53. And a bolt 80 connected to the cylindrical portion 61.

支持手段８の外方鍔部２９は、貫通孔２８に挿通されたボルト８０を介して車体７に固着されており、支持体３１の筒部材３９は、外方鍔部２９の端面３８と面一になっている積層方向Ｖの他方の円環状の面で車体７の表面に接触している。   The outer flange portion 29 of the support means 8 is fixed to the vehicle body 7 via a bolt 80 inserted through the through hole 28, and the cylindrical member 39 of the support body 31 faces the end surface 38 of the outer flange portion 29. The other annular surface in the stacking direction V, which is united, is in contact with the surface of the vehicle body 7.

自動車シート６は、車体７に、前方では支持部材７４を介して固定部であるボルト７８を支点として鉛直面内でＲ方向に揺動自在に支持されていると共に後方では防振装置１を介して支持されており、この場合、下フレーム７７のボルト７８を支点とする鉛直面内でのＲ方向の揺動を許容するように、防振装置１において本体部５３の円筒部６１及び鍔部５６は、内方鍔部２７及び筒体２５との間に多少の隙間が生じるように形成されている。
いる。 The vehicle seat 6 is supported on the vehicle body 7 via a support member 74 at the front so as to be swingable in the R direction in the vertical plane with a bolt 78 as a fixed portion as a fulcrum, and at the rear via the vibration isolator 1. In this case, in the vibration isolator 1, the cylindrical portion 61 and the flange portion of the main body portion 53 are allowed so as to allow the swing in the R direction within the vertical plane with the bolt 78 of the lower frame 77 as a fulcrum. 56 is formed such that a slight gap is formed between the inner flange portion 27 and the cylindrical body 25.
Yes.

後方では一対の防振装置１を介して、そして、前方では支持部材７４を介してボルト７８を支点として鉛直面内でＲ方向に揺動自在に車体７に支持されている以上の自動車シート６は、路面からの振動に加えてエンジンからの振動を受けて車体７に対して相対的に大略積層方向Ｖに振動し、図７に示すように、振動入力受容体１１は、支持部材７９からの車体７に対する自動車シート６の下フレーム７７の相対的な積層方向Ｖの斯かる振動入力を突起部５４を介して板ばね２Ａの中央部１０に附加して板ばね２Ａをその外縁部５を支点として弾性的に振動させ、振動伝達手段１２の板体６５は、板ばね２Ａに附加された略積層方向Ｖの振動入力を各板ばね２Ｂ、２Ｃ及び２Ｄの中央部１０に伝達して当該各板ばね２Ｂ、２Ｃ及び２Ｄをその外縁部５を支点として弾性的に振動させるようになっている。   More than the automobile seat 6 supported by the vehicle body 7 so as to be swingable in the R direction within the vertical plane with the bolt 78 as a fulcrum through the pair of vibration isolator 1 at the rear and the support member 74 at the front. Receives vibrations from the engine in addition to vibrations from the road surface, and vibrates approximately in the stacking direction V relative to the vehicle body 7. As shown in FIG. Such vibration input in the relative stacking direction V of the lower frame 77 of the vehicle seat 6 with respect to the vehicle body 7 is applied to the central portion 10 of the leaf spring 2A via the projection 54, and the leaf spring 2A is attached to the outer edge portion 5 thereof. The plate body 65 of the vibration transmitting means 12 transmits the vibration input in the substantially laminating direction V added to the leaf spring 2A to the central portion 10 of each leaf spring 2B, 2C and 2D. Remove each leaf spring 2B, 2C and 2D And it is adapted to elastically vibrating the parts 5 as a fulcrum.

而して、防振装置１によれば、振動伝達手段１２の板体６５が各板ばね２Ａ〜２Ｄ間に介在されているために、車体７に対する自動車シート６の相対的な振動入力の生起において、積層体４の各板ばね２Ａから２Ｄ同士の全面での摩擦を回避できて各板ばね２Ａ〜２Ｄがその外縁部５を支点として弾性的に振動される結果、積層体４を略理想的な弾性体として動作させることができ、而して、自動車シート６を支持した上で、車体７に対する自動車シート６の相対的な振動入力に対して各板ばね２Ａから２Ｄ同士の摩擦に影響されないで各板ばね本来の特性をもって弾性的に応答でき、自動車シート６自体の重量を増加させないでも、下フレーム７７上の自動車シート６の機械的な共振点を低下させることができる上に、エンジンからの僅かな振動でも自動車シート６の振動を緩衝でき、乗り心地を向上させることができる。   Thus, according to the vibration isolator 1, since the plate body 65 of the vibration transmitting means 12 is interposed between the plate springs 2A to 2D, the vibration input of the automobile seat 6 relative to the vehicle body 7 is generated. In this case, friction between the leaf springs 2A to 2D of the laminated body 4 can be avoided and the leaf springs 2A to 2D are elastically vibrated with the outer edge portion 5 as a fulcrum. As a result, it is possible to operate as an elastic body, and thus influence the friction between the leaf springs 2A to 2D with respect to the relative vibration input of the automobile seat 6 with respect to the vehicle body 7 after the automobile seat 6 is supported. The mechanical resonance point of the automobile seat 6 on the lower frame 77 can be lowered without increasing the weight of the automobile seat 6 itself. A few from Can also buffer the vibration of the vehicle seat 6 by vibration, it is possible to improve the ride comfort.

上記の例では、隙間保持体３０の各環状体３６を板ばね２Ａ〜２Ｄと別体に形成したが、これに代えて、図８及び図９に示すように、積層体４の積層方向Ｖにおける板ばね２Ａ〜２Ｃの夫々の外縁部５の一方の面に一体的に積層方向Ｖに突出して設けられている突部８１を有した隙間保持体３０でもよく、また、振動伝達手段１２の板体６５を板ばね２Ａ〜２Ｄと別体に形成したが、これに代えて、同じく図８及び図９に示すように、板ばね２Ａ〜２Ｃの夫々の中央部に一方の面に一体的に積層方向Ｖに突出して設けられている突部８２を有した振動伝達手段１２でもよい。   In the above example, each annular body 36 of the gap holder 30 is formed separately from the leaf springs 2A to 2D, but instead of this, as shown in FIGS. It may be a gap holder 30 having a protrusion 81 that protrudes in the stacking direction V integrally on one surface of each outer edge 5 of the leaf springs 2A to 2C. Although the plate body 65 is formed separately from the plate springs 2A to 2D, instead of this, as shown in FIGS. 8 and 9, the plate springs 2A to 2C are integrally formed on one surface at the center. Alternatively, the vibration transmitting means 12 may have a protrusion 82 that protrudes in the stacking direction V.

上記のように、隙間保持体３０は、板ばね２Ａ〜２Ｄとは別体に設けられた環状体３６又は板ばね２Ａ〜２Ｃの外縁部５の一方の面に一体的に設けられている突部８１を有していてもよいのであるが、これらに代えて、隙間保持体３０は、図１０に示すように、筒体２５の内周面２３に一体的に径方向内方に突出して設けられている突部８３を有していてもよい。   As described above, the gap holding body 30 is integrally provided on one surface of the outer edge portion 5 of the annular body 36 or the leaf springs 2A to 2C provided separately from the leaf springs 2A to 2D. However, instead of these, the gap holding body 30 protrudes radially inward integrally with the inner peripheral surface 23 of the cylindrical body 25 as shown in FIG. You may have the protrusion 83 provided.

更に、上記の例では、支持体３１は、板ばね２Ｄとは別体の環状体３７を具備しているが、これに代えて、図８及び図１０に示すように、板ばね２Ｄの外縁部５の一方の面に一体的に積層方向Ｖに突出して設けられている円環状の突部８５又は筒体２５の内周面２３に一体的に径方向内方に突出して設けられている円環状の突部８６を有していてもよく、更には、図１０に示す例では、筒部材３９を省いて支持体３１を構成してもよい。   Further, in the above example, the support body 31 includes the annular body 37 that is separate from the leaf spring 2D. Instead, as shown in FIGS. 8 and 10, the outer edge of the leaf spring 2D is provided. An annular protrusion 85 provided integrally protruding on one surface of the portion 5 in the stacking direction V or an inner peripheral surface 23 of the cylinder 25 integrally protruding radially inward. An annular protrusion 86 may be provided, and in the example illustrated in FIG. 10, the support member 31 may be configured by omitting the cylindrical member 39.

前記例では自動車シート６は、後方でのみ防振装置１を介して支持されているが、これに代えて、図１２及び図１３に示すように、前方でも、前後部方向に対して直交する方向に配列された一対の支持機構９１及び防振装置１の夫々を介して車体７に支持されていてもよい。各支持機構９１は、支持機構７５と同様に構成されており、一端で下フレーム７７の前部に固着されている支持部材９２と、雌ねじ５１に螺合して支持部材９２の他端を本体部５３の円筒部６１に連結するボルト９３とを具備しており、図１２及び図１３に示す場合には、自動車シート６は、四個の防振装置１でもって弾性的に支持されることになる。   In the above example, the automobile seat 6 is supported only via the anti-vibration device 1 at the rear, but instead, as shown in FIGS. 12 and 13, it is orthogonal to the front-rear direction also at the front. You may be supported by the vehicle body 7 via each of a pair of support mechanism 91 and the vibration isolator 1 which were arranged in the direction. Each support mechanism 91 is configured in the same manner as the support mechanism 75. The support member 92 is fixed to the front portion of the lower frame 77 at one end, and the other end of the support member 92 is screwed into the female screw 51. And the bolt 93 connected to the cylindrical part 61 of the part 53. In the case shown in FIGS. 12 and 13, the automobile seat 6 is elastically supported by the four vibration isolators 1. become.

本発明による実施の形態の好ましい例の図２に示すＩ−Ｉ線矢視断面説明図である。It is II sectional view explanatory drawing shown in FIG. 2 of the preferable example of embodiment by this invention. 図１に示す例の平面説明図である。It is a plane explanatory view of the example shown in FIG. 図１に示す例の一部の分解説明図である。FIG. 2 is a partial exploded explanatory view of the example shown in FIG. 1. 図１に示す例の一部の拡大断面説明図である。FIG. 2 is an enlarged cross-sectional explanatory diagram of a part of the example shown in FIG. 1. 図１に示す例を自動車シートに用いた例の説明図である。It is explanatory drawing of the example which used the example shown in FIG. 1 for a motor vehicle seat. 図５に示す例の平面図である。FIG. 6 is a plan view of the example shown in FIG. 5. 図１に示す例の動作説明図である。It is operation | movement explanatory drawing of the example shown in FIG. 本発明による実施の形態の好ましい他の例の断面説明図である。It is sectional explanatory drawing of the other preferable example of embodiment by this invention. 図８に示す例の一部の説明斜視図である。FIG. 9 is an explanatory perspective view of a part of the example shown in FIG. 8. 本発明による実施の形態の好ましい更に他の例の断面説明図である。It is a section explanatory view of still another preferred example of an embodiment by the present invention. 図１に示す例を自動車シートに用いた他の例の説明図である。It is explanatory drawing of the other example which used the example shown in FIG. 1 for a motor vehicle seat. 図１１に示す例の平面図である。It is a top view of the example shown in FIG.

符号の説明Explanation of symbols

１ 防振装置
２Ａ、２Ｂ、２Ｃ、２Ｄ 板ばね
３ 隙間
４ 積層体
５ 外縁部
６ 自動車シート
７ 車体
８ 支持手段
１０ 中央部
１１ 振動入力受容体
１２ 振動伝達手段 DESCRIPTION OF SYMBOLS 1 Anti-vibration apparatus 2A, 2B, 2C, 2D Leaf spring 3 Gap 4 Laminated body 5 Outer edge part 6 Automobile seat 7 Car body 8 Support means 10 Center part 11 Vibration input receiving body 12 Vibration transmission means

Claims (10)

複数枚の板ばねを当該板ばね間に隙間をもって積層した積層体と、この積層体の各板ばねの外縁部を支持すると共に自動車シート及び車体のうちの一方に連結されるようになっている支持手段と、自動車シート及び車体のうちの他方に連結されるようになっていると共に車体に対する自動車シートの相対的な積層体の積層方向の振動入力を積層体の複数の板ばねのうちの積層方向の一端側の板ばねの外縁部に囲まれる部位に附加して当該一端側の板ばねをその外縁部を支点として弾性的に振動させる振動入力受容体と、該一端側の板ばねに伝達された振動入力を残る各板ばねの外縁部に囲まれる部位に伝達して当該残る板ばねをその外縁部を支点として弾性的に振動させるように板ばね間に介在された振動伝達手段とを具備しており、自動車シートと車体との間に介在される自動車シート用の防振装置。   A laminated body in which a plurality of leaf springs are laminated with a gap between the leaf springs, and an outer edge portion of each leaf spring of the laminated body is supported and connected to one of an automobile seat and a vehicle body. The vibration input in the stacking direction of the laminate of the automobile seat relative to the vehicle body is coupled to the other of the support means and the automobile seat and the vehicle body, and the lamination input of the plurality of leaf springs of the laminate A vibration input receptor that is attached to a portion surrounded by the outer edge of the leaf spring at one end in the direction and elastically vibrates the leaf spring at the one end with the outer edge as a fulcrum, and is transmitted to the leaf spring at the one end Vibration transmitting means interposed between the leaf springs so as to transmit the received vibration input to a portion surrounded by the outer edge portion of each leaf spring and to vibrate the remaining leaf spring elastically with the outer edge portion as a fulcrum. Equipped with a car Anti-vibration device for a motor vehicle seat which is interposed between the over bets and the vehicle body. 積層体の板ばねは、円盤状又は矩形状である請求項１に記載の自動車シート用の防振装置   2. The vibration isolator for an automobile seat according to claim 1, wherein the leaf spring of the laminated body has a disk shape or a rectangular shape. 支持手段は、各板ばねの外縁部をその外周面との間に隙間をもって囲繞した内周面を有して積層体を収容した筒体と、積層体の積層方向における各板ばねの外縁部間に配されていると共に各板ばね間の隙間を保持する隙間保持体と、複数の板ばねのうちの積層方向の他端側の板ばねの外縁部に接触して当該他端側の板ばねを筒体の内部で支持する支持体とを具備している請求項１又は２に記載の自動車シート用の防振装置。   The supporting means includes a cylindrical body that has an inner peripheral surface that surrounds the outer edge portion of each leaf spring with a gap between the outer peripheral surface and accommodates the laminate, and an outer edge portion of each leaf spring in the stacking direction of the laminate. A gap holding body that is disposed between the leaf springs and that contacts the outer edge of the leaf spring on the other end side in the stacking direction among the plurality of leaf springs. The vibration isolator for automobile seats according to claim 1 or 2, further comprising a support for supporting the spring inside the cylinder. 隙間保持体は、筒体の内周面に一体的に設けられている突部を有している請求項３に記載の自動車シート用の防振装置。   The vibration isolator for an automobile seat according to claim 3, wherein the gap holder has a protrusion that is integrally provided on the inner peripheral surface of the cylinder. 隙間保持体は、筒体とは別体に設けられた環状体を有している請求項３又は４に記載の自動車シート用の防振装置。   The vibration isolator for an automobile seat according to claim 3 or 4, wherein the gap holding body has an annular body provided separately from the cylindrical body. 隙間保持体は、積層体の積層方向における板ばねの外縁部の一方の面に一体的に設けられている突部を有している請求項３から５のいずれか一項に記載の自動車シート用の防振装置。   The automobile seat according to any one of claims 3 to 5, wherein the gap holder has a protrusion that is integrally provided on one surface of the outer edge of the leaf spring in the stacking direction of the stack. Anti-vibration device. 振動入力受容体は、自動車シートに連結するための連結部を有した本体部と、この本体部に一体的に設けられていると共に一端側の板ばねの外縁部に囲まれる部位に接触する突起部とを具備している請求項１から６のいずれか一項に記載の自動車シート用の防振装置。   The vibration input receiver includes a main body portion having a connecting portion for connecting to an automobile seat, and a protrusion that is provided integrally with the main body portion and contacts a portion surrounded by an outer edge portion of a leaf spring on one end side. The vibration isolator for automobile seats according to any one of claims 1 to 6, further comprising a portion. 振動伝達手段は、板ばねに一体的に設けられている突部を有している請求項１から７のいずれか一項に記載の自動車シート用の防振装置。   8. The vibration isolator for an automobile seat according to any one of claims 1 to 7, wherein the vibration transmitting means has a protrusion provided integrally with the leaf spring. 振動伝達手段は、板ばねとは別体に設けられた板体を有している請求項１から８のいずれか一項に記載の自動車シート用の防振装置。   The vibration isolator for an automobile seat according to any one of claims 1 to 8, wherein the vibration transmission means includes a plate body provided separately from the plate spring. 車体に、少なくとも後方で請求項１から９のいずれか一項に記載の自動車シート用の防振装置を介して支持されている自動車シート。   An automobile seat supported on the vehicle body at least rearward through the vibration isolator for an automobile seat according to any one of claims 1 to 9.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012144135A (en) * 2011-01-12 2012-08-02 Nissan Motor Co Ltd Frame structure of vehicle seat
FR3051159A1 (en) * 2016-05-12 2017-11-17 Peugeot Citroen Automobiles Sa DEVICE FOR DAMPING A VEHICLE SEAT BY CASSETTE.
FR3055854A1 (en) * 2016-09-14 2018-03-16 Peugeot Citroen Automobiles Sa DEVICE FOR DAMPING A SEAT OF A MOTOR VEHICLE BY CASSETTE AND GREASE
FR3055851A1 (en) * 2016-09-14 2018-03-16 Peugeot Citroen Automobiles Sa SEAT SUSPENSION SYSTEM
CN110709278A (en) * 2017-06-02 2020-01-17 德鱼塔工业股份有限公司 Suspension mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5274953U (en) * 1975-12-03 1977-06-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5274953U (en) * 1975-12-03 1977-06-04

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012144135A (en) * 2011-01-12 2012-08-02 Nissan Motor Co Ltd Frame structure of vehicle seat
FR3051159A1 (en) * 2016-05-12 2017-11-17 Peugeot Citroen Automobiles Sa DEVICE FOR DAMPING A VEHICLE SEAT BY CASSETTE.
FR3055854A1 (en) * 2016-09-14 2018-03-16 Peugeot Citroen Automobiles Sa DEVICE FOR DAMPING A SEAT OF A MOTOR VEHICLE BY CASSETTE AND GREASE
FR3055851A1 (en) * 2016-09-14 2018-03-16 Peugeot Citroen Automobiles Sa SEAT SUSPENSION SYSTEM
CN110709278A (en) * 2017-06-02 2020-01-17 德鱼塔工业股份有限公司 Suspension mechanism

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