JP2008241047A - Fluid-filled vibration control device - Google Patents

Fluid-filled vibration control device Download PDF

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JP2008241047A
JP2008241047A JP2008152836A JP2008152836A JP2008241047A JP 2008241047 A JP2008241047 A JP 2008241047A JP 2008152836 A JP2008152836 A JP 2008152836A JP 2008152836 A JP2008152836 A JP 2008152836A JP 2008241047 A JP2008241047 A JP 2008241047A
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elastic partition
ribs
liquid
partition membrane
elastic
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JP4646995B2 (en
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Masaaki Ito
政昭 伊藤
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Toyo Tire Corp
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Toyo Tire and Rubber Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid-filled vibration control device capable of sufficiently reducing noise. <P>SOLUTION: The fluid-filled vibration control device comprises a first fixture, a second fixture, a vibration control base body, a diaphragm, a partition body and orifices. The partition body comprises an elastic partition film 15, a first lattice member and a second lattice member, and rib groups 50 are protrusively provided on both faces of the elastic partition film 15. The rib group 50 comprises a plurality of annular first ribs 51 located coaxially with the axis O of the elastic partition film 15, and a plurality of second ribs 52 located radially to the axis O. The second ribs 52 are dispersedly arranged over the whole periphery of the elastic partition film 15 around the axis O of the elastic partition film 15 in the plural number in each space between a pair of adjoining first ribs 51. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、第１取付け具と、筒状の第２取付け具と、これらを連結するゴム状弾性材から成る防振基体と、前記第２取付け具に取付けられて前記防振基体との間に液体封入室を形成するダイヤフラムと、前記液体封入室を前記防振基体側の第１液室と前記ダイヤフラム側の第２液室に仕切る仕切り体と、前記第１液室と第２液室を連通させるオリフィスとを備え、
前記仕切り体は、弾性仕切り膜と、前記弾性仕切り膜の一方の面の外方側からその弾性仕切り膜の変位量を規制する第１格子部材と、前記弾性仕切り膜の他方の面の外方側からその弾性仕切り膜の変位量を規制する第２格子部材とから成る液封入式防振装置に関する。 The present invention includes a first fixture, a cylindrical second fixture, a vibration isolating base made of a rubber-like elastic material for connecting them, and a vibration isolating base attached to the second fixture. A diaphragm for forming a liquid sealing chamber, a partition for partitioning the liquid sealing chamber into a first liquid chamber on the vibration-proof base side and a second liquid chamber on the diaphragm side, the first liquid chamber and the second liquid chamber And an orifice for communicating
The partition includes an elastic partition membrane, a first lattice member that regulates a displacement amount of the elastic partition membrane from the outer side of one surface of the elastic partition membrane, and an outer side of the other surface of the elastic partition membrane. The present invention relates to a liquid-filled vibration isolator comprising a second lattice member that regulates the amount of displacement of the elastic partition membrane from the side.

上記の液封入式防振装置は、例えば、自動車のトランスミッションと車体側のメンバーとの間や、エンジンと車体フレームとの間に設けられている。そして、走行路面の凹凸に起因して大振幅の振動が生じると、液体がオリフィスを通って両液室間を流動し、その液体流動効果によって振動を減衰させる。一方、微振幅の振動が生じると、両液室間を液体流通することはなく、弾性仕切り膜が往復動変形（あるいは往復動変位）して振動を減衰させる。   The liquid-filled vibration isolator is provided, for example, between a vehicle transmission and a vehicle body member, or between an engine and a vehicle body frame. When a large amplitude vibration occurs due to the unevenness of the traveling road surface, the liquid flows between the two liquid chambers through the orifice, and the vibration is attenuated by the liquid flow effect. On the other hand, when vibration with a small amplitude occurs, liquid does not flow between both liquid chambers, and the elastic partition film is reciprocally deformed (or reciprocally displaced) to attenuate the vibration.

この種の液封入式防振装置では、弾性仕切り膜が格子部材に衝突したときに異音が発生しやすい。そこで、従来、特許文献１に開示されているように、弾性仕切り膜の両面に複数の凸部を周方向に均等な角度ごとに分散配設した液封入式防振装置が開発されていた。この液封入式防振装置において前記凸部が小さいと成形しにくく、その上、凸部の耐久性が低下することから、凸部はやや大きく成形されている。   In this type of liquid-filled vibration isolator, abnormal noise is likely to occur when the elastic partition film collides with the lattice member. Therefore, as disclosed in Patent Document 1, a liquid-sealed vibration isolator has been developed in which a plurality of convex portions are distributed on both sides of an elastic partition film at equal angles in the circumferential direction. In this liquid-filled vibration isolator, if the convex portion is small, it is difficult to form the convex portion, and the durability of the convex portion is lowered. In addition, the convex portion is formed to be slightly large.

フランス国特許公開２６７４５９０号公報French Patent Publication No. 2647590

上記従来の構成によれば、凸部が大きいために、格子部材に軟らかく衝突することが困難で、異音を十分低減することができなかった。凸部を小さくすると前述のような問題が生じ、より異音を低減できる液封入式防振装置が望まれていた。   According to the above conventional configuration, since the convex portion is large, it is difficult to softly collide with the lattice member, and abnormal noise cannot be sufficiently reduced. When the convex portion is made small, the above-described problems occur, and a liquid-filled vibration isolator capable of reducing abnormal noise has been desired.

本発明の目的は、異音を十分に低減することができる液封入式防振装置を提供する点にある。   An object of the present invention is to provide a liquid-filled vibration isolator capable of sufficiently reducing abnormal noise.

請求項１による発明の構成は、冒頭に記載した液封入式防振装置において、
前記弾性仕切り膜の両面にリブ群がそれぞれ突設され、
前記リブ群は、前記弾性仕切り膜の軸芯に対して同芯状に位置する環状の複数の第１リブと、前記軸芯に対して放射状に位置する複数の第２リブとから成り、
前記第２リブは、隣合う一対の第１リブの間ごとに複数個づつ、前記弾性仕切り膜の軸芯周りに前記弾性仕切り膜の全周にわたって分散配置されている点にある。 The configuration of the invention according to claim 1 is the liquid-filled vibration isolator described at the beginning.
Ribs are respectively provided on both sides of the elastic partition membrane,
The rib group includes a plurality of annular first ribs positioned concentrically with respect to the axis of the elastic partition membrane, and a plurality of second ribs positioned radially with respect to the axis.
A plurality of the second ribs are dispersedly arranged around the axis of the elastic partition film over the entire circumference of the elastic partition film, a plurality of the second ribs between each pair of adjacent first ribs.

この構成によれば、弾性仕切り膜の両面にリブ群がそれぞれ突設され、リブ群は、弾性仕切り膜の軸芯に対して同芯状に位置する環状の複数の第１リブと、軸芯に対して放射状に位置する第２リブとから成るから、各リブが細くてもリブ群を強い構造体に構成することができ、耐久性をよくすることができる。つまり、第１リブと第２リブを細く成形することができ、振動に伴って弾性仕切り膜が格子部材に衝突する場合、第１リブと第２リブが衝撃を吸収しやすくなる。その結果、弾性仕切り膜を格子部材に軟らかく衝突させることができる。   According to this configuration, the rib groups project from both surfaces of the elastic partition film, and the rib groups include the plurality of annular first ribs concentrically positioned with respect to the axis of the elastic partition film and the shaft core. Therefore, even if each rib is thin, the rib group can be formed into a strong structure, and durability can be improved. That is, the first rib and the second rib can be thinly formed, and when the elastic partition film collides with the lattice member with vibration, the first rib and the second rib can easily absorb the impact. As a result, the elastic partition film can be softly collided with the lattice member.

放射状の複数の第２リブが長いとリブ群の剛性が強くなりすぎて、第１リブと第２リブが衝撃を吸収しにくくなるおそれがあるが、請求項１の構成では第２リブは、隣合う一対の第１リブの間ごとに複数個づつ配置されているから、第２リブを短くすることができ、リブ群の剛性が強くなりすぎるのを抑制できて、第１リブと第２リブが衝撃を吸収しやすくなる。   If the plurality of second radial ribs are long, the rigidity of the rib group becomes too strong, and the first rib and the second rib may not easily absorb the impact. However, in the configuration of claim 1, the second rib is Since a plurality of the first ribs are arranged between each pair of adjacent first ribs, the second ribs can be shortened, and the rigidity of the rib group can be suppressed from becoming too strong. Ribs easily absorb shocks.

そして、複数個づつの第２リブはそれぞれ弾性仕切り膜の軸芯周りに弾性仕切り膜の全周にわたって分散配置されているから、衝撃を弾性仕切り膜の全面にわたってほぼ均一に吸収することができる。   Since the plurality of second ribs are distributed over the entire circumference of the elastic partition film around the axis of the elastic partition film, the impact can be absorbed almost uniformly over the entire surface of the elastic partition film.

請求項２による発明の構成は、請求項１による発明の構成において、前記第１リブは、前記弾性仕切り膜の軸芯側と、外周縁側とにそれぞれ配置されるとともに、前記弾性仕切り膜の径方向の中間部に所定数配置されている点にある。   The structure of the invention according to claim 2 is the structure of the invention according to claim 1, wherein the first ribs are respectively disposed on the axial core side and the outer peripheral edge side of the elastic partition film, and the diameter of the elastic partition film. A predetermined number is arranged in the middle of the direction.

この構成によれば、第１リブを弾性仕切り膜の軸芯側から外周縁側にわたって分散させることができ、リブ群の剛性を適切な強さに設定しやすくすることができて、第１リブと第２リブが衝撃を吸収しやすくなる。   According to this configuration, the first rib can be dispersed from the axial core side to the outer peripheral edge side of the elastic partition membrane, and the rigidity of the rib group can be easily set to an appropriate strength. The second rib easily absorbs the impact.

請求項３による発明の構成は、請求項１又は２による発明の構成において、前記弾性仕切り膜の径方向で隣合う前記複数個づつの第２リブ同士が、前記弾性仕切り膜の周方向で位置ずれしている点にある。   The structure of the invention according to claim 3 is the structure of the invention according to claim 1 or 2, wherein the plurality of second ribs adjacent in the radial direction of the elastic partition membrane are positioned in the circumferential direction of the elastic partition membrane. It is in the point which has shifted.

弾性仕切り膜の径方向で隣合う第２リブ同士が一直線に連なると、リブ群の剛性が強くなり過ぎるおそれが考えられるが、請求項３の構成によれば、前記隣合う第２リブ同士が弾性仕切り膜の周方向で位置ずれしているから、リブ群の剛性が強くなりすぎるのを抑制できて、第１リブと第２リブが衝撃を吸収しやすくなる。   If the second ribs adjacent to each other in the radial direction of the elastic partition membrane are connected in a straight line, there is a possibility that the rigidity of the rib group becomes too strong. According to the configuration of claim 3, the adjacent second ribs are Since the position is displaced in the circumferential direction of the elastic partition film, the rigidity of the rib group can be suppressed from becoming too strong, and the first rib and the second rib can easily absorb the impact.

請求項４による発明の構成は、請求項１〜３のいずれか一つによる発明の構成において、前記複数の第１リブは、前記弾性仕切り膜の径方向に均等な間隔で配置され、前記複数の第２リブは前記弾性仕切り膜の軸芯周りに同一角度ごとに均等に配置されている点にある。
この構成によれば、リブ群の剛性を所望の強さに設定しやすくすることができ、第１リブと第２リブが衝撃を吸収しやすくなる。また、衝撃を弾性仕切り膜の全面にわたって均一に吸収しやすくなる。 The structure of the invention according to claim 4 is the structure of the invention according to any one of claims 1 to 3, wherein the plurality of first ribs are arranged at equal intervals in the radial direction of the elastic partition film, The second ribs are arranged uniformly at the same angle around the axis of the elastic partition membrane.
According to this configuration, the rigidity of the rib group can be easily set to a desired strength, and the first rib and the second rib can easily absorb the impact. Moreover, it becomes easy to absorb an impact uniformly over the entire surface of the elastic partition film.

本発明によれば、振動に伴って弾性仕切り膜が格子部材に衝突する場合、第１リブと第２リブが衝撃を吸収しやすくなって、弾性仕切り膜を格子部材に軟らかく衝突させることができることから、異音を十分に低減させることができる液封入式防振装置を提供することができた。   According to the present invention, when the elastic partition film collides with the lattice member due to vibration, the first rib and the second rib can easily absorb the impact, and the elastic partition film can be made to softly collide with the lattice member. Therefore, it was possible to provide a liquid filled type vibration isolator capable of sufficiently reducing abnormal noise.

以下、本発明の実施の形態を図面に基づいて説明する。図１にＦＲ車用の液封入式防振装置を示してある。この液封入式防振装置は、トランスミッションに取付けブラケット１４を介して取付けられる第１取付け具１と、車体側のメンバーに取付けられる筒状の第２取付け具２と、これらを連結するゴム状弾性材から成る防振基体３とを備えている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a liquid-filled vibration isolator for an FR vehicle. This liquid-filled vibration isolator includes a first fixture 1 that is attached to a transmission via a mounting bracket 14, a cylindrical second fixture 2 that is attached to a member on the vehicle body side, and a rubber-like elasticity that connects them. And an anti-vibration base 3 made of a material.

第１取付け具１はフランジ状の被ストッパ部３２を備えた円柱状に形成され、その上端部が取付けブラケット１４に連結している。第２取付け具２は、防振基体３が加硫成形される筒状金具４と、筒状の底金具５と、防振基体３や被ストッパ部３２を覆う筒状のストッパ金具７とから成る。これら三者は同芯状に位置し、それぞれの軸芯方向一端側のフランジ同士が一体にかしめ固定されている。   The first fixture 1 is formed in a columnar shape having a flange-like stoppered portion 32, and the upper end portion thereof is connected to the mounting bracket 14. The second fixture 2 includes a cylindrical metal fitting 4 on which the vibration isolating base 3 is vulcanized, a cylindrical bottom metal fitting 5, and a cylindrical stopper metal fitting 7 that covers the vibration isolating base 3 and the stopper portion 32. Become. These three members are positioned concentrically, and the flanges on one end side in the axial direction are caulked and fixed integrally.

ストッパ金具７は第１取付け具１と第２取付け具２との変位量を規制する。このストッパ金具７の底部に、車体側のメンバーに対する連結部としての取付け面部１０を張出し形成し、取付け面部１０に複数の取付けボルト６を圧入固着してある。   The stopper fitting 7 regulates the amount of displacement between the first fixture 1 and the second fixture 2. A mounting surface portion 10 as a connecting portion for a member on the vehicle body side is formed on the bottom portion of the stopper metal member 7 so as to protrude, and a plurality of mounting bolts 6 are press-fitted and fixed to the mounting surface portion 10.

防振基体３は底部側が中空の円錐台形状に形成され、その上端面が第１取付け金具１に、下端部が筒状金具４の内周面部にそれぞれ加硫接着している。   The anti-vibration base 3 is formed in a truncated cone shape having a hollow bottom side, and its upper end surface is vulcanized and bonded to the first mounting bracket 1 and its lower end portion is vulcanized and bonded to the inner peripheral surface portion of the cylindrical bracket 4.

底金具５に、防振基体３の下面との間に液体封入室８を形成するダイヤフラム９を取付け、液体封入室８に液体を封入してある。また、第１取付け具１の下端部に、液体封入室８内の液体の流れを規制する規制板２８を取付けボルト２９で固定してある。ダイヤフラム９はゴム膜から成る。   A diaphragm 9 that forms a liquid enclosure chamber 8 is attached to the bottom metal 5 between the bottom surface of the vibration isolator base 3 and a liquid is enclosed in the liquid enclosure chamber 8. Further, a regulating plate 28 that regulates the flow of the liquid in the liquid enclosure 8 is fixed to the lower end portion of the first fixture 1 with a mounting bolt 29. The diaphragm 9 is made of a rubber film.

そして、液体封入室８を防振基体３側の第１液室１１Ａとダイヤフラム側の第２液室１１Ｂに仕切る仕切り体１２を底金具５の底部と筒状金具４の底部とで挟持固定してある。   Then, the partition body 12 that partitions the liquid sealing chamber 8 into the first liquid chamber 11A on the vibration-isolating base 3 side and the second liquid chamber 11B on the diaphragm side is sandwiched and fixed between the bottom of the bottom metal 5 and the bottom of the cylindrical metal 4. It is.

仕切り体１２は、ゴム膜から成る円板状の弾性仕切り膜１５と、この弾性仕切り膜１５を収容して内周面間の格子壁１８（第1格子部材に相当）で受止める筒部材１６と、この筒部材１６の上端側の開口を覆う格子円板状の仕切り膜変位規制部材１７（第２格子部材に相当）とから成る。格子壁１８は弾性仕切り膜１５の一方の面の外方側からその弾性仕切り膜１５の変位量を規制し、仕切り膜変位規制部材１７は弾性仕切り膜１５の他方の面の外方側からその弾性仕切り膜１５の変位量を規制する。   The partition 12 includes a disk-shaped elastic partition film 15 made of a rubber film, and a cylindrical member 16 that accommodates the elastic partition film 15 and is received by a lattice wall 18 (corresponding to a first lattice member) between inner peripheral surfaces. And a lattice disc-shaped partition membrane displacement regulating member 17 (corresponding to the second lattice member) covering the opening on the upper end side of the cylindrical member 16. The lattice wall 18 restricts the amount of displacement of the elastic partition film 15 from the outer side of one surface of the elastic partition film 15, and the partition film displacement restricting member 17 operates from the outer side of the other surface of the elastic partition film 15. The amount of displacement of the elastic partition film 15 is regulated.

前記第１液室１１Ａと第２液室１１Ｂ同士を連通させるオリフィス２５を、筒部材１６の外周面と底金具５の内周面との間に形成してある。図２，図３，図４（イ），図４（ロ）に示すように、オリフィス流路は筒部材１６の軸芯Ｏ周りに２周しており、上側の１周分のオリフィス流路Ｒ１と、下側の１周分のオリフィス流路Ｒ２とから成る。これらはオリフィス形成壁２２で仕切られている。   An orifice 25 that allows the first liquid chamber 11 </ b> A and the second liquid chamber 11 </ b> B to communicate with each other is formed between the outer peripheral surface of the cylindrical member 16 and the inner peripheral surface of the bottom metal 5. As shown in FIGS. 2, 3, 4 (b), and 4 (b), the orifice channel has two rounds around the axis O of the cylindrical member 16, and the upper one round orifice channel. It consists of R1 and an orifice channel R2 for one round on the lower side. These are partitioned by an orifice forming wall 22.

上側の第１オリフィス流路Ｒ１は仕切り膜変位規制部材１７の開口１９（図５参照）と切欠き５５を介して連通し、下側のオリフィス流路Ｒ２は筒部材１６の下端側の開口５８を介して第２液室１１Ｂと連通している（図１，図４(ロ)参照）。   The upper first orifice flow path R1 communicates with the opening 19 (see FIG. 5) of the partition membrane displacement regulating member 17 via the notch 55, and the lower orifice flow path R2 is the opening 58 on the lower end side of the cylindrical member 16. And communicates with the second liquid chamber 11B (see FIGS. 1 and 4B).

図５，図６に示すように、仕切り膜変位規制部材１７は外周側に円筒部２０を備え、これが筒部材１６の上端部に外嵌して、防振基体３の段部５７に上側から受止められている。   As shown in FIGS. 5 and 6, the partition membrane displacement regulating member 17 includes a cylindrical portion 20 on the outer peripheral side, which is fitted on the upper end portion of the cylindrical member 16, and on the stepped portion 57 of the vibration isolation base 3 from above. It is accepted.

仕切り膜変位規制部材１７の格子孔５４は、中心側の格子孔５４Ｄと、仕切り膜変位規制部材１７の周方向に３列に並ぶ複数個づつの格子孔５４Ａ，５４Ｂ，５４Ｃとから成る。内側の列の格子孔５４Ａと中間の列の格子孔５４Ｂとの数はそれぞれ４個、外側の列の格子孔５４Ｃの数は８個で、それぞれ均等な角度（９０度又は４５度）ごとに配置されている。前記開口１９は外周縁側に配置されている。   The lattice hole 54 of the partition membrane displacement regulating member 17 includes a center side lattice hole 54D and a plurality of lattice holes 54A, 54B, 54C arranged in three rows in the circumferential direction of the partition membrane displacement regulating member 17. The number of the lattice holes 54A in the inner row and the number of the lattice holes 54B in the middle row is four, and the number of the lattice holes 54C in the outer row is eight. Has been placed. The opening 19 is disposed on the outer peripheral edge side.

格子壁１８の格子孔５４も、中心側の格子孔５４Ｄと、格子壁１８の周方向に３列に並複数個づつの格子孔５４Ａ，５４Ｂ，５４Ｃとから成る。そのパターン（個数・形状・格子壁１８の軸芯Ｏ周りでの位置等）は仕切り膜変位規制部材１７側と同じパターンになっている。   The lattice hole 54 of the lattice wall 18 also includes a lattice hole 54D on the center side and a plurality of lattice holes 54A, 54B, 54C arranged in parallel in three rows in the circumferential direction of the lattice wall 18. The pattern (number, shape, position of the lattice wall 18 around the axis O, etc.) is the same pattern as the partition film displacement regulating member 17 side.

図７，図８，図９に示すように、弾性仕切り膜１５の両面に同一パターンのリブ群５０がそれぞれ突設されている。このリブ群５０は、弾性仕切り膜１５の軸芯Ｏに対して同芯状に位置する環状の複数の第１リブ５１と、軸芯Ｏに対して放射状に位置する複数の第２リブ５２とから成る。各リブ５１，５２の高さ寸法やリブ幅は同一に設定してある。   As shown in FIGS. 7, 8, and 9, rib groups 50 having the same pattern project from both surfaces of the elastic partition film 15. The rib group 50 includes a plurality of annular first ribs 51 positioned concentrically with the axis O of the elastic partition film 15 and a plurality of second ribs 52 positioned radially with respect to the axis O. Consists of. The height dimension and rib width of each rib 51, 52 are set to be the same.

前記複数の第１リブ５１のうち、最も小さな径の第１リブ５１は弾性仕切り膜１５の軸芯Ｏ側に配置され、最も大きな径の第１リブ５１は弾性仕切り膜１５の外周縁側に配置されている。そして、両者の間（中間部）に、複数の別の第１リブ５１が径方向に一定の間隔で配置されている。詳しくは、全ての第１リブ５１が弾性仕切り膜１５の径方向に均等な間隔で配置されている。   Among the plurality of first ribs 51, the first rib 51 having the smallest diameter is disposed on the axis O side of the elastic partition film 15, and the first rib 51 having the largest diameter is disposed on the outer peripheral edge side of the elastic partition film 15. Has been. A plurality of other first ribs 51 are arranged at regular intervals in the radial direction between the two (intermediate portion). Specifically, all the first ribs 51 are arranged at equal intervals in the radial direction of the elastic partition film 15.

前記第２リブ５２は、隣合う一対の第１リブ５１の間ごとに複数個づつ、弾性仕切り膜１５の軸芯Ｏ周りに弾性仕切り膜１５の全周にわたって分散配置され、各第２リブ５２の両端がその両側の前記一対の第１リブ５１に接続している。   A plurality of the second ribs 52 are distributed around the axis O of the elastic partition film 15 around the entire circumference of the elastic partition film 15, and a plurality of the second ribs 52 are arranged between the adjacent pair of first ribs 51. Are connected to the pair of first ribs 51 on both sides thereof.

弾性仕切り膜１５の径方向で隣合う複数個づつの第２リブ５２同士は、弾性仕切り膜１５の周方向で位置ずれしている。また、隣合う一対の第１リブ５１の間の複数の第２リブ５２は弾性仕切り膜１５の軸芯Ｏ周りに同一角度ごとに均等に配置されている。   A plurality of second ribs 52 adjacent to each other in the radial direction of the elastic partition film 15 are displaced in the circumferential direction of the elastic partition film 15. A plurality of second ribs 52 between a pair of adjacent first ribs 51 are equally arranged around the axis O of the elastic partition film 15 at the same angle.

上記の構成により、振動に伴って弾性仕切り膜１５が格子壁１８や仕切り膜変位規制部材１７に衝突する場合、第１リブ５１と第２リブ５２が衝撃を吸収しやすくなり、弾性仕切り膜１５を格子壁１８や仕切り膜変位規制部材１７に軟らかく衝突させることができる。   With the above configuration, when the elastic partition film 15 collides with the lattice wall 18 or the partition film displacement regulating member 17 due to vibration, the first rib 51 and the second rib 52 easily absorb the impact, and the elastic partition film 15. Can be made to softly collide with the lattice wall 18 or the partition film displacement regulating member 17.

［別実施形態］
［１］前記弾性仕切り膜１５のリブ群５０のパターンは上記の実施形態に限られるものではない。例えば、隣合う一対の第１リブ５１の間の第２リブ５２の数を、別の隣合う一対の第１リブ５１の間の第２リブ５２の数と異ならせてあってもよい。つまり図１０に示すように、ほぼ中央の第１リブ５１Ａよりも径方向外方側と内方側とで、隣合う一対の第１リブ５１の間の第２リブ５２の数を異ならせ、前記径方向外方側の各第２リブ５２の数（隣合う一対の第１リブ５１の間の第２リブ５２の数）を、径方向内方側の各第２リブ５２の数（隣合う一対の第１リブ５１の間の第２リブ５２の数）よりも多く設定してあってもよい。 [Another embodiment]
[1] The pattern of the rib group 50 of the elastic partition film 15 is not limited to the above embodiment. For example, the number of second ribs 52 between a pair of adjacent first ribs 51 may be different from the number of second ribs 52 between another pair of adjacent first ribs 51. That is, as shown in FIG. 10, the number of the second ribs 52 between the pair of adjacent first ribs 51 is different between the radially outer side and the inner side with respect to the substantially central first rib 51A. The number of the second ribs 52 on the radially outer side (the number of the second ribs 52 between the pair of adjacent first ribs 51) is the number of the second ribs 52 on the radially inner side (the adjacent ones). The number of the second ribs 52 between the pair of matching first ribs 51 may be set larger.

［２］弾性仕切り膜１５の変形量も特許請求の範囲の「弾性仕切り膜の変位量」に含まれるものとする。   [2] The deformation amount of the elastic partition membrane 15 is also included in the “displacement amount of the elastic partition membrane” in the claims.

［３］本発明は、例えば、エンジンと車体フレームとの間に設けられる液封入式防振装置にも適用することができる。   [3] The present invention can also be applied to, for example, a liquid-filled vibration isolator provided between the engine and the vehicle body frame.

液封入式防振装置の縦断図Vertical view of liquid-filled vibration isolator 筒部材の平面図Plan view of cylindrical member 筒部材の縦断正面図Longitudinal front view of cylindrical member （イ）は筒部材の側面図、（ロ）は筒部材の正面図(A) is a side view of the cylindrical member, (B) is a front view of the cylindrical member. 仕切り膜変位規制部材の平面図Plan view of partition membrane displacement regulating member 仕切り膜変位規制部材の正面図Front view of partition membrane displacement regulating member 弾性仕切り膜の平面図Top view of elastic partition membrane 弾性仕切り膜の断面図Cross section of elastic partition membrane 弾性仕切り膜の要部の拡大断面図Enlarged cross-sectional view of essential parts of elastic partition membrane 別実施形態の弾性仕切り膜の平面図Plan view of elastic partition membrane of another embodiment

符号の説明Explanation of symbols

１ 第１取付け具
２ 第２取付け具
３ 防振基体
８ 液体封入室
９ ダイヤフラム
１１Ａ 第１液室
１１Ｂ 第２液室
１２ 仕切り体
１５ 弾性仕切り膜
１７ 第２格子部材
１８ 第1格子部材
２５ オリフィス
５０ リブ群
５１ 第１リブ
５２ 第２リブ
Ｏ 弾性仕切り膜の軸芯 DESCRIPTION OF SYMBOLS 1 1st fixture 2 2nd fixture 3 Anti-vibration base | substrate 8 Liquid enclosure chamber 9 Diaphragm 11A 1st liquid chamber 11B 2nd liquid chamber 12 Partition body 15 Elastic partition film 17 2nd grid member 18 1st grid member 25 Orifice 50 Rib group 51 1st rib 52 2nd rib O Axle of elastic partition membrane

Claims (4)

第１取付け具と、筒状の第２取付け具と、これらを連結するゴム状弾性材から成る防振基体と、前記第２取付け具に取付けられて前記防振基体との間に液体封入室を形成するダイヤフラムと、前記液体封入室を前記防振基体側の第１液室と前記ダイヤフラム側の第２液室に仕切る仕切り体と、前記第１液室と第２液室を連通させるオリフィスとを備え、
前記仕切り体は、弾性仕切り膜と、前記弾性仕切り膜の一方の面の外方側からその弾性仕切り膜の変位量を規制する第１格子部材と、前記弾性仕切り膜の他方の面の外方側からその弾性仕切り膜の変位量を規制する第２格子部材とから成る液封入式防振装置であって、
前記弾性仕切り膜の両面にリブ群がそれぞれ突設され、
前記リブ群は、前記弾性仕切り膜の軸芯に対して同芯状に位置する環状の複数の第１リブと、前記軸芯に対して放射状に位置する複数の第２リブとから成り、
前記第２リブは、隣合う一対の第１リブの間ごとに複数個づつ、前記弾性仕切り膜の軸芯周りに前記弾性仕切り膜の全周にわたって分散配置されている液封入式防振装置。 A liquid enclosure is provided between the first fixture, the cylindrical second fixture, a vibration isolating base made of a rubber-like elastic material for connecting them, and the vibration isolating base attached to the second fixture. Forming a diaphragm, a partition body for partitioning the liquid sealing chamber into a first liquid chamber on the vibration-proof base side and a second liquid chamber on the diaphragm side, and an orifice for communicating the first liquid chamber and the second liquid chamber And
The partition includes an elastic partition membrane, a first lattice member that regulates a displacement amount of the elastic partition membrane from the outer side of one surface of the elastic partition membrane, and an outer side of the other surface of the elastic partition membrane. A liquid-filled vibration isolator comprising a second lattice member that regulates the amount of displacement of the elastic partition membrane from the side,
Ribs are respectively provided on both sides of the elastic partition membrane,
The rib group includes a plurality of annular first ribs positioned concentrically with respect to the axis of the elastic partition membrane, and a plurality of second ribs positioned radially with respect to the axis.
The liquid-filled type vibration damping device, wherein a plurality of the second ribs are distributed around the axial center of the elastic partition film over the entire circumference of the elastic partition film, and a plurality of the second ribs are provided between each pair of adjacent first ribs. 前記第１リブは、前記弾性仕切り膜の軸芯側と、外周縁側とにそれぞれ配置されるとともに、前記弾性仕切り膜の径方向の中間部に所定数配置されている請求項１記載の液封入式防振装置。 2. The liquid sealing according to claim 1, wherein the first rib is disposed on each of an axial center side and an outer peripheral edge side of the elastic partition membrane, and a predetermined number of the first ribs are disposed at a radial intermediate portion of the elastic partition membrane. Type vibration isolator. 前記弾性仕切り膜の径方向で隣合う前記複数個づつの第２リブ同士が、前記弾性仕切り膜の周方向で位置ずれしている請求項１又は２記載の液封入式防振装置。 The liquid-filled vibration isolator according to claim 1 or 2, wherein the plurality of second ribs adjacent to each other in the radial direction of the elastic partition membrane are displaced from each other in the circumferential direction of the elastic partition membrane. 前記複数の第１リブは、前記弾性仕切り膜の径方向に均等な間隔で配置され、前記複数の第２リブは前記弾性仕切り膜の軸芯周りに同一角度ごとに均等に配置されている請求項１〜３のいずれか一つに記載の液封入式防振装置。 The plurality of first ribs are arranged at equal intervals in the radial direction of the elastic partition membrane, and the plurality of second ribs are arranged uniformly at the same angle around the axis of the elastic partition membrane. Item 4. The liquid-filled vibration isolator according to any one of Items 1 to 3.
JP2008152836A 2008-06-11 2008-06-11 Liquid-filled vibration isolator Expired - Fee Related JP4646995B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018105286A1 (en) * 2016-12-07 2018-06-14 株式会社ブリヂストン Vibration-proof device

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JPS639537U (en) * 1986-07-08 1988-01-22
JPS6449731A (en) * 1987-08-20 1989-02-27 Tokai Rubber Ind Ltd Fluid-sealed type mount device
JPH03288036A (en) * 1990-03-30 1991-12-18 Tokai Rubber Ind Ltd Fluid filled-type mount device
JPH0493535U (en) * 1990-12-28 1992-08-13

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JPS639537U (en) * 1986-07-08 1988-01-22
JPS6449731A (en) * 1987-08-20 1989-02-27 Tokai Rubber Ind Ltd Fluid-sealed type mount device
JPH03288036A (en) * 1990-03-30 1991-12-18 Tokai Rubber Ind Ltd Fluid filled-type mount device
JPH0493535U (en) * 1990-12-28 1992-08-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018105286A1 (en) * 2016-12-07 2018-06-14 株式会社ブリヂストン Vibration-proof device
CN110050143A (en) * 2016-12-07 2019-07-23 株式会社普利司通 Antihunting device

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