JP2023170298A - Antivibration device - Google Patents

Antivibration device Download PDF

Info

Publication number
JP2023170298A
JP2023170298A JP2022081946A JP2022081946A JP2023170298A JP 2023170298 A JP2023170298 A JP 2023170298A JP 2022081946 A JP2022081946 A JP 2022081946A JP 2022081946 A JP2022081946 A JP 2022081946A JP 2023170298 A JP2023170298 A JP 2023170298A
Authority
JP
Japan
Prior art keywords
plate
mounting
bracket
plates
vibration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2022081946A
Other languages
Japanese (ja)
Inventor
辰典 増田
Tatsunori Masuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Tire Corp
Original Assignee
Toyo Tire Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Tire Corp filed Critical Toyo Tire Corp
Priority to JP2022081946A priority Critical patent/JP2023170298A/en
Publication of JP2023170298A publication Critical patent/JP2023170298A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Abstract

To provide an antivibration device capable of improving the durability of a bracket.SOLUTION: A second bracket 30 is mounted on the vehicle body side with a bolt 39 inserted into mounting holes 36a, 37a, 38b of the second bracket 30. By holding a plurality of continuous annular plates 38 between two mounting plates 36, 37 separating from each other in a vertical direction U-D, the mounting holes 36a, 37a, 38b are formed penetrating through mutually overlapping portions. Thus, a fastening portion of the second bracket 30 with the bolt 39 is thickened for higher rigidity to improve the durability of the second bracket 30.SELECTED DRAWING: Figure 1

Description

本発明は防振装置に関し、特にブラケットの耐久性を向上できる防振装置に関するものである。 The present invention relates to a vibration isolator, and particularly to a vibration isolator that can improve the durability of a bracket.

防振装置は、第1部材および第2部材を弾性体製の防振基体で連結した防振装置本体と、第1部材が固定される第1ブラケットと、第2部材が固定される第2ブラケットと、を備える。振動源(例えばエンジン)側および振動受(例えば車体)側の一方に第1ブラケットが取り付けられて他方に第2ブラケットが締結部材で締結される。この振動源側と振動受側との間の振動伝達が防振装置によって抑制される。 The vibration isolator includes a vibration isolator main body in which a first member and a second member are connected by a vibration isolator made of an elastic body, a first bracket to which the first member is fixed, and a second bracket to which the second member is fixed. A bracket is provided. A first bracket is attached to one of the vibration source (for example, engine) side and the vibration receiver (for example, vehicle body) side, and the second bracket is fastened to the other side by a fastening member. Vibration transmission between the vibration source side and the vibration receiving side is suppressed by the vibration isolator.

例えば、特許文献1に開示された第2ブラケットは、円筒状の第2部材が嵌まる円筒部と、その円筒部の上端が外周面に接合されて第1ブラケットのアームを囲む角筒部と、角筒部の左右両側に設けた一対の脚部と、を備える。この脚部は、板材を左右方向から見て略U字状に曲げることで形成され、底板から垂直補強板が立ち上がる。角筒部の左右両側の側壁板に垂直補強板が接合される。底板に貫通形成された取付孔に締結部材が挿入されて第2ブラケットが振動受側に締結される。 For example, the second bracket disclosed in Patent Document 1 includes a cylindrical part into which a cylindrical second member is fitted, and a rectangular cylindrical part whose upper end is joined to the outer peripheral surface and surrounds the arm of the first bracket. , and a pair of legs provided on both left and right sides of the rectangular tube part. The legs are formed by bending the plate into a substantially U-shape when viewed from the left and right, and a vertical reinforcing plate stands up from the bottom plate. Vertical reinforcing plates are joined to the side wall plates on both the left and right sides of the rectangular tube part. A fastening member is inserted into a mounting hole formed through the bottom plate, and the second bracket is fastened to the vibration receiving side.

特開2011-7261号公報Japanese Patent Application Publication No. 2011-7261

しかしながら、上記従来技術では、第2ブラケットのうち締結部材で振動受側に締結される部分が1枚の底板だけであるため、その締結部分の剛性が低い。また、底板と側壁板とをいずれにも垂直な垂直補強板で連結する場合、第1ブラケットから第2ブラケットへの左右方向の入力に対し、その連結部分の剛性が不十分となるおそれがある。このように上記従来技術では、第2ブラケットの耐久性が低いという問題点がある。 However, in the above-mentioned prior art, since the part of the second bracket that is fastened to the vibration receiving side by the fastening member is only one bottom plate, the rigidity of the fastened part is low. In addition, when connecting the bottom plate and the side wall plates with a vertical reinforcing plate that is perpendicular to both, the rigidity of the connecting part may be insufficient in response to input from the first bracket to the second bracket in the left and right direction. . As described above, the above-mentioned conventional technology has a problem in that the second bracket has low durability.

本発明は上述した問題点を解決するためになされたものであり、第2ブラケットの耐久性を向上できる防振装置を提供することを目的とする。 The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a vibration isolator that can improve the durability of the second bracket.

この目的を達成するために本発明の防振装置は、第1部材および第2部材を弾性体製の防振基体で連結した防振装置本体と、第1方向に延びて前記第1部材が固定されるアームを有し、振動源側および振動受側の一方に取り付けられる第1ブラケットと、前記振動源側および前記振動受側の他方に締結部材で締結される第2ブラケットと、を備え、前記第2ブラケットは、前記第2部材が固定される固定部と、前記固定部が設けられる第1板と、前記第1方向に垂直な第2方向に関し前記第1板との間に前記アームを挟んで相対する第2板と、前記第1方向および前記第2方向に垂直な第3方向に前記アームを挟んで互いに相対し前記第1板および前記第2板を連結する一対の側壁板と、前記側壁板から前記第3方向へそれぞれ張り出し前記第2方向に互いに離れて配置される複数の取付板と、複数の前記取付板の間で前記第2方向に挟み込まれるスペーサと、を備え、前記取付板および前記スペーサが互いに重なった部分には、前記締結部材が挿入される取付孔が前記第2方向に貫通形成されている。 In order to achieve this object, the vibration isolator of the present invention includes a vibration isolator main body in which a first member and a second member are connected by a vibration isolator base made of an elastic body, and a vibration isolator body that extends in a first direction and has a first member that extends in a first direction. A first bracket having a fixed arm and attached to one of the vibration source side and the vibration receiving side, and a second bracket fastened to the other of the vibration source side and the vibration receiving side with a fastening member. , the second bracket includes a fixing part to which the second member is fixed, a first plate on which the fixing part is provided, and the first plate in a second direction perpendicular to the first direction. a second plate facing each other across the arm; and a pair of side walls facing each other across the arm in a third direction perpendicular to the first direction and the second direction and connecting the first plate and the second plate. a plurality of mounting plates that respectively extend from the side wall plate in the third direction and are arranged apart from each other in the second direction; and a spacer that is sandwiched between the plurality of mounting plates in the second direction; A mounting hole into which the fastening member is inserted is formed in a portion where the mounting plate and the spacer overlap in the second direction.

請求項1記載の防振装置によれば、第2ブラケットの取付孔に挿入した締結部材によって振動源側および振動受側の他方に第2ブラケットが取り付けられる。この取付孔は、第2方向に離れた複数の取付板の間にスペーサを挟み込むことで互いに重なった部分に貫通形成されている。そのため、第2ブラケットのうち締結部材による締結部分を厚くして高剛性化できる。 According to the vibration isolating device according to the first aspect, the second bracket is attached to the other of the vibration source side and the vibration receiving side by the fastening member inserted into the attachment hole of the second bracket. This mounting hole is formed through a portion where a plurality of mounting plates that are spaced apart in the second direction overlap each other by sandwiching a spacer between the mounting plates. Therefore, the portion of the second bracket that is fastened by the fastening member can be made thicker and more rigid.

更に、この取付板は、第1ブラケットのアームを第3方向に挟んで相対する一対の側壁板から第3方向へ張り出している。これにより、第1ブラケットから第2ブラケットへ第3方向の入力が有った場合、締結部材と側壁板との間で、その入力に対し略真っ直ぐに取付板が突っ張る。そのため、第3方向の入力に対する第2ブラケットの剛性を向上できる。これらの結果、第2ブラケットの耐久性を向上できる。 Further, this mounting plate extends in the third direction from a pair of side wall plates facing each other with the arm of the first bracket interposed in the third direction. Thereby, when there is an input in the third direction from the first bracket to the second bracket, the mounting plate is stretched substantially straight in response to the input between the fastening member and the side wall plate. Therefore, the rigidity of the second bracket against input in the third direction can be improved. As a result, the durability of the second bracket can be improved.

請求項2記載の防振装置によれば、請求項1記載の防振装置の奏する効果に加え、次の効果を奏する。第2方向に離れた複数の取付板のうち少なくとも1枚は、第3方向から見てアームと重なる位置にある。これにより、第3方向の入力により防振基体が変形してアームが側壁板に押し付けられた場合でも、アームと締結部材との間で略真っ直ぐに取付板が突っ張る。その結果、第3方向の入力に対する第2ブラケットの剛性をより向上でき、第2ブラケットの耐久性をより向上できる。 According to the vibration isolator according to the second aspect, in addition to the effects provided by the vibration isolator according to the first aspect, the following effects are achieved. At least one of the plurality of mounting plates spaced apart in the second direction is located at a position overlapping the arm when viewed from the third direction. As a result, even if the vibration isolating base is deformed by input in the third direction and the arm is pressed against the side wall plate, the mounting plate is held substantially straight between the arm and the fastening member. As a result, the rigidity of the second bracket against input in the third direction can be further improved, and the durability of the second bracket can be further improved.

請求項3記載の防振装置によれば、請求項1記載の防振装置の奏する効果に加え、次の効果を奏する。第1板と側壁板とは、縁同士が曲面状の角部で連結される。第2部材が内側に嵌まる円筒状または楕円筒状に形成された固定部は、第1板および角部から第2板とは反対側へ突出する。固定部と角部との接続部分は、側壁板へ向かうにつれて第1方向の寸法が小さくなる。このように接続部分が側壁板へ向かうにつれてすぼむことで、接続部分の近傍の剛性を向上できる。 According to the vibration isolator according to the third aspect, in addition to the effects provided by the vibration isolator according to the first aspect, the following effects are achieved. The edges of the first plate and the side wall plate are connected to each other at curved corners. A fixing part formed in a cylindrical or elliptical shape into which the second member is fitted projects from the first plate and the corner to the side opposite to the second plate. The dimension of the connecting portion between the fixing portion and the corner portion in the first direction decreases toward the side wall plate. In this manner, the connecting portion becomes smaller toward the side wall plate, thereby improving the rigidity in the vicinity of the connecting portion.

請求項4記載の防振装置によれば、請求項1記載の防振装置の奏する効果に加え、次の効果を奏する。第2ブラケットは、側壁板および取付板から垂直に立ち上がる垂直補強板を備える。これにより、第2ブラケットへの第3方向の入力時に、取付板へ向かって側壁板を倒れ難くできる。このように、垂直補強板で第2ブラケットの剛性を向上して耐久性をより向上できる。 According to the vibration isolator according to the fourth aspect, in addition to the effects provided by the vibration isolator according to the first aspect, the following effects are achieved. The second bracket includes a vertical reinforcing plate rising vertically from the side wall plate and the mounting plate. This makes it difficult for the side wall plate to fall toward the mounting plate when inputting the third direction to the second bracket. In this way, the rigidity of the second bracket can be improved by the vertical reinforcing plate, and the durability can be further improved.

請求項5記載の防振装置によれば、請求項1から4のいずれかに記載の防振装置の奏する効果に加え、次の効果を奏する。スペーサは、取付孔を中央に設けた複数の環状板を第2方向に重ねて形成されている。スペーサが1本の円筒体である場合と比べ環状板の方が、板材からの抜き打ち加工などによってスペーサを低コストで製造し易い。また、環状板を重ねる枚数の調整により取付板の間の距離を容易に調整できる。 According to the vibration isolator according to claim 5, in addition to the effects provided by the vibration isolator according to any one of claims 1 to 4, the following effects are achieved. The spacer is formed by stacking a plurality of annular plates in the second direction, each having a mounting hole in the center. Compared to a case where the spacer is a single cylindrical body, it is easier to manufacture the spacer at a lower cost by punching from a plate material if the annular plate is used. Furthermore, the distance between the mounting plates can be easily adjusted by adjusting the number of stacked annular plates.

請求項6記載の防振装置によれば、請求項5記載の防振装置の奏する効果に加え、次の効果を奏する。取付板には、取付孔が複数設けられる。この複数の取付孔に対応するように第1方向および第3方向の少なくとも一方に離れた環状板同士を連結部で連結することで、連環板が形成される。この連環板を第2方向に複数重ねてスペーサが形成される。よって、連結部が無い場合と比べてスペーサを構成する部品点数を削減できる。 According to the vibration isolator according to the sixth aspect, in addition to the effects provided by the vibration isolator according to the fifth aspect, the following effects are achieved. The mounting plate is provided with a plurality of mounting holes. A connecting ring plate is formed by connecting the annular plates separated in at least one of the first direction and the third direction so as to correspond to the plurality of attachment holes at the connecting portion. A spacer is formed by stacking a plurality of these linking plates in the second direction. Therefore, the number of parts constituting the spacer can be reduced compared to the case where there is no connection part.

請求項7記載の防振装置によれば、請求項6記載の防振装置の奏する効果に加え、次の効果を奏する。第2方向に重なった連結部が互いに接合されると共に、連結部が取付板に接合される。これらの接合部分を取付孔の近傍、即ち締結部材の軸力が作用する部位から離すことによって、その接合に起因した形状変化が締結部材の軸力に影響することを抑制できる。 According to the vibration isolator according to the seventh aspect, in addition to the effects provided by the vibration isolator according to the sixth aspect, the following effects are achieved. The connecting portions that overlap in the second direction are joined to each other, and the connecting portions are joined to the mounting plate. By separating these joining portions from the vicinity of the mounting hole, that is, from the region on which the axial force of the fastening member acts, it is possible to suppress the influence of the shape change caused by the joining on the axial force of the fastening member.

第1実施形態における防振装置の斜視図である。It is a perspective view of the vibration isolator in a 1st embodiment. 防振装置の断面図である。FIG. 3 is a cross-sectional view of the vibration isolator. 図2のIII-III線における防振装置の断面図である。3 is a cross-sectional view of the vibration isolator taken along line III-III in FIG. 2. FIG. 第2ブラケットの分解斜視図である。FIG. 3 is an exploded perspective view of the second bracket. 第2実施形態における防振装置の斜視図である。It is a perspective view of the vibration isolator in 2nd Embodiment. 第3実施形態における防振装置の斜視図である。It is a perspective view of the vibration isolator in 3rd Embodiment.

以下、好ましい実施形態について、添付図面を参照して説明する。図1は、第1実施形態における防振装置10の斜視図である。図2は、防振装置10の断面図である。図3は、図2のIII-III線における防振装置10の断面図である。図4は、第2ブラケット30の分解斜視図である。 Hereinafter, preferred embodiments will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a vibration isolator 10 in the first embodiment. FIG. 2 is a sectional view of the vibration isolator 10. FIG. 3 is a cross-sectional view of the vibration isolator 10 taken along line III-III in FIG. FIG. 4 is an exploded perspective view of the second bracket 30.

なお以下の説明では、図2の紙面上側を防振装置10の上方向Uとし、それぞれ同様に紙面下側を下方向D、紙面左側を前方向F、紙面右側を後方向B、紙面手前側を左方向L、紙面奥側を右方向Rとする。これら上下方向U-D(第2方向)と前後方向F-B(第1方向)と左右方向L-R(第3方向)とは互いに垂直である。防振装置10の上下方向U-D等は、防振装置10が搭載される車両の上下方向などとは必ずしも一致しない。例えば、防振装置10の上方向と車両の下方向とを一致させたり、防振装置10の左右方向と車両の上下方向とを一致させたりしても良い。また、これらの各方向は第2,3実施形態でも同様である。 In the following explanation, the upper side of the paper in FIG. 2 is the upper direction U of the vibration isolator 10, the lower side of the paper is the downward direction D, the left side of the paper is the front direction F, the right side of the paper is the rear direction B, and the near side of the paper. Let the left direction be L, and the back side of the page be the right direction R. These up-down direction UD (second direction), front-back direction FB (first direction), and left-right direction LR (third direction) are perpendicular to each other. The vertical direction UD of the vibration isolator 10 does not necessarily match the vertical direction of the vehicle in which the vibration isolator 10 is mounted. For example, the upward direction of the vibration isolator 10 may be made to match the downward direction of the vehicle, or the left-right direction of the vibration isolator 10 may be made to match the vertical direction of the vehicle. Further, each of these directions is the same in the second and third embodiments.

図1に示すように、防振装置10は、車両のエンジンを弾性支持するエンジンマウントである。防振装置10は、エンジン(振動源)側に取り付けられる第1ブラケット11と、第1ブラケット11に固定される防振装置本体20と、車体(振動受)側に取り付けられて防振装置本体20が固定される第2ブラケット30と、を備える。 As shown in FIG. 1, the vibration isolator 10 is an engine mount that elastically supports the engine of a vehicle. The vibration isolator 10 includes a first bracket 11 that is attached to the engine (vibration source) side, a vibration isolator body 20 that is fixed to the first bracket 11, and a vibration isolator body that is attached to the vehicle body (vibration receiver) side. 20 is fixed to the second bracket 30.

図1及び図2に示すように、第1ブラケット11は、基部12及びアーム15を備える金属製の部材である。基部12は、前後方向F-Bに垂直な厚板状の部位であり、複数の貫通孔13が貫通形成されている。この貫通孔13に挿入したボルト14によって第1ブラケット11がエンジン側に取り付けられる。 As shown in FIGS. 1 and 2, the first bracket 11 is a metal member including a base 12 and an arm 15. As shown in FIGS. The base 12 is a thick plate-shaped portion perpendicular to the front-rear direction FB, and a plurality of through holes 13 are formed therethrough. The first bracket 11 is attached to the engine side by a bolt 14 inserted into the through hole 13.

アーム15は、基部12から前方向Fへ延びる略四角棒状の部位である。アーム15の上下両面はそれぞれ上下方向U-Dと垂直であり、アーム15の左右両面はそれぞれ左右方向L-Rと垂直である。このアーム15の周囲(上下左右)は、弾性体(例えばゴム)からなる緩衝体18で被覆される。また、アーム15の前方向Fの先端部には、ボルト17が挿入される貫通孔16が上下方向U-Dに貫通形成されている。 The arm 15 is a substantially square bar-shaped portion extending in the forward direction F from the base 12. The upper and lower surfaces of the arm 15 are perpendicular to the up-down direction UD, and the left and right surfaces of the arm 15 are perpendicular to the left-right direction LR. The periphery (top, bottom, left and right) of this arm 15 is covered with a buffer body 18 made of an elastic body (for example, rubber). Further, a through hole 16 into which a bolt 17 is inserted is formed in the front end portion of the arm 15 in the forward direction F in the vertical direction UD.

防振装置本体20は、軸状の第1部材21と、第1部材21を囲む筒状の第2部材22と、それらを連結する弾性体製の防振基体23と、を備える。第1部材21は、上下方向U-Dに平行な軸心Cに沿って形成されたボス金具である。なお、図2の断面図には、この軸心Cを含む防振装置10の断面であって左右方向L-Rと直交する断面が示されている。 The vibration isolator main body 20 includes a shaft-shaped first member 21, a cylindrical second member 22 surrounding the first member 21, and an elastic vibration-isolating base 23 that connects them. The first member 21 is a boss metal fitting formed along an axis C parallel to the up-down direction UD. Note that the cross-sectional view of FIG. 2 shows a cross section of the vibration isolator 10 including the axis C and perpendicular to the left-right direction LR.

第1部材21の下端には、ボルト17が締結されるボルト孔21aが軸心Cに沿って形成される。アーム15の貫通孔16に挿入したボルト17をボルト孔21aに締結することで、アーム15の先端から上方向Uへ第1部材21が突出し、アーム15に第1部材21が固定される。 A bolt hole 21a into which the bolt 17 is fastened is formed along the axis C at the lower end of the first member 21. By fastening the bolt 17 inserted into the through hole 16 of the arm 15 to the bolt hole 21a, the first member 21 protrudes from the tip of the arm 15 in the upward direction U, and the first member 21 is fixed to the arm 15.

第2部材22は、軸心Cを中心とした略円筒状の部材であり、主に鉄鋼などの金属により形成される。第2部材22は、第1部材21に対し上方向Uへオフセットして配置される。第2部材22は、上下方向U-Dの中央部分が上方向Uへ向かうにつれて徐々に内外径が小さくなる円錐筒状に形成される。第2部材22は、その中央部分よりも下端側の円筒部に対し上端側の円筒部の内外径が小さい。 The second member 22 is a substantially cylindrical member centered on the axis C, and is mainly formed of metal such as steel. The second member 22 is arranged offset in the upward direction U with respect to the first member 21 . The second member 22 is formed in the shape of a conical tube whose inner and outer diameters gradually decrease as the central portion in the up-down direction UD goes toward the upward direction U. In the second member 22, the inner and outer diameters of the cylindrical portion on the upper end side are smaller than the cylindrical portion on the lower end side of the central portion.

防振基体23は、ゴムや熱可塑性エラストマ等の弾性体製の部材であり、上下反転した略傘状に形成される。防振基体23は、第1部材21の外周面と、第2部材22の内周面とにそれぞれ全周に亘って加硫接着され、これらを連結する。 The vibration-proof base 23 is a member made of an elastic material such as rubber or thermoplastic elastomer, and is formed into a substantially umbrella shape that is upside down. The vibration isolating base 23 is vulcanized and bonded to the outer circumferential surface of the first member 21 and the inner circumferential surface of the second member 22 over the entire circumference, thereby connecting them.

防振装置10には主に左右方向L-Rの振動が入力される。この入力により、防振基体23が弾性変形して、第2ブラケット30及び第2部材22に対し第1ブラケット11及び第1部材21が左右方向L-Rへ移動(振動)する。 Vibrations mainly in the left-right direction LR are input to the vibration isolator 10. Due to this input, the vibration isolating base 23 is elastically deformed, and the first bracket 11 and first member 21 move (vibrate) in the left-right direction LR with respect to the second bracket 30 and second member 22.

第2ブラケット30は、固定部31と、第1板32と、第2板33と、一対の側壁板34と、複数の取付板36,37と、複数の連環板38と、を備える。これら第2ブラケット30の各部は、鋼板などの板材に対する打ち抜き加工や曲げ加工などによって形成される。 The second bracket 30 includes a fixing portion 31, a first plate 32, a second plate 33, a pair of side wall plates 34, a plurality of mounting plates 36 and 37, and a plurality of link plates 38. Each part of the second bracket 30 is formed by punching or bending a plate material such as a steel plate.

固定部31は、軸心Cを中心とした略円筒状の部位である。固定部31には、第2部材22の下端側が圧入されて嵌め込まれる。第1板32は、固定部31の下端の全周から径方向外側へ張り出す略平板状の部位である。第1板32は、上下方向U-Dに垂直に形成されている。第1板32は、アーム15の上側に位置する。 The fixing portion 31 is a substantially cylindrical portion centered on the axis C. The lower end side of the second member 22 is press-fitted into the fixing portion 31 . The first plate 32 is a substantially flat plate-shaped portion that extends radially outward from the entire circumference of the lower end of the fixing portion 31 . The first plate 32 is formed perpendicular to the up-down direction UD. The first plate 32 is located above the arm 15.

第2板33は、上下方向U-Dに垂直な略平板状の部位である。第2板33は、アーム15の下側に位置する。第1板32と第2板33とは、上下方向U-Dにアーム15を挟んで相対する。なお、第2板33には、下方向Dから見てボルト17が見える位置に孔33aが貫通形成されている。これにより、第2ブラケット30に防振装置本体20を取り付けた状態で、孔33aから工具を挿入してボルト17を回し、防振装置本体20の第1部材21をアーム15に固定したりその固定を解除したりできる。 The second plate 33 is a substantially flat plate-shaped portion perpendicular to the up-down direction UD. The second plate 33 is located below the arm 15. The first plate 32 and the second plate 33 face each other with the arm 15 in between in the vertical direction UD. Note that a hole 33a is formed through the second plate 33 at a position where the bolt 17 is visible when viewed from the downward direction D. As a result, with the vibration isolator main body 20 attached to the second bracket 30, a tool is inserted through the hole 33a and the bolt 17 is turned to fix the first member 21 of the vibration isolator main body 20 to the arm 15. You can also unpin.

図1及び図3に示すように、一対の側壁板34はいずれも、左右方向L-Rに垂直な略平板状の部位である。一対の側壁板34は、左右方向L-Rにアーム15を挟んで互いに相対する。一対の側壁板34の上縁が第1板32の左右両縁にそれぞれ連なり、一対の側壁板34の下縁が第2板33の左右両縁にそれぞれ連なる。 As shown in FIGS. 1 and 3, each of the pair of side wall plates 34 is a substantially flat portion perpendicular to the left-right direction LR. The pair of side wall plates 34 face each other across the arm 15 in the left-right direction LR. The upper edges of the pair of side wall plates 34 are connected to the left and right edges of the first plate 32, and the lower edges of the pair of side wall plates 34 are connected to the left and right edges of the second plate 33, respectively.

これらの第1板32、第2板33及び一対の側壁板34により、第1ブラケット11のアーム15を囲む筒体が形成される。この筒体の各部によって、第2ブラケット30に対する第1ブラケット11の上下方向U-D及び左右方向L-Rの相対移動が規制される。なお、アーム15の上下両面に設けた緩衝体18によって、アーム15と筒体の各部との衝突が緩衝される。 The first plate 32, the second plate 33, and the pair of side wall plates 34 form a cylindrical body surrounding the arm 15 of the first bracket 11. Each part of this cylindrical body restricts relative movement of the first bracket 11 with respect to the second bracket 30 in the vertical direction UD and the horizontal direction LR. Note that the shock absorbers 18 provided on both the upper and lower surfaces of the arm 15 buffer the collision between the arm 15 and each part of the cylindrical body.

固定部31、第1板32及び一対の側壁板34は、1枚の鋼板(板材)から形成されている。具体的な製造方法として例えば、まず1枚の鋼板の左右両側を下方向Dへ略垂直に曲げ加工することで、第1板32及び一対の側壁板34を形成する。その後、第1板32の中央に設けた孔を広げつつ、その孔の周囲を上方向Uへ曲げる絞り加工によって固定部31を形成する。 The fixing portion 31, the first plate 32, and the pair of side wall plates 34 are formed from one steel plate (plate material). As a specific manufacturing method, for example, the first plate 32 and the pair of side wall plates 34 are formed by bending both left and right sides of one steel plate substantially vertically in the downward direction D. Thereafter, the fixing portion 31 is formed by drawing a hole provided at the center of the first plate 32 while enlarging the hole and bending the periphery of the hole in the upward direction U.

このように形成された第1板32と側壁板34とは、縁同士が曲面状の角部35で連結されている。また、固定部31の外径は、一対の側壁板34の左右外面の間の距離と略同一である。そのため、固定部31は、第1板32のうち上下方向U-Dに垂直な部分だけでなく角部35からも上方向Uへ突出している。 The edges of the thus formed first plate 32 and side wall plate 34 are connected to each other by curved corners 35. Further, the outer diameter of the fixing portion 31 is approximately the same as the distance between the left and right outer surfaces of the pair of side wall plates 34. Therefore, the fixing portion 31 protrudes in the upward direction U not only from a portion of the first plate 32 perpendicular to the up-down direction UD but also from the corner portion 35.

外周面が曲面である円筒状の固定部31と、曲面状の角部35との接続部分は、その曲面の向きが90°異なることにより、側壁板34へ向かうにつれて前後方向F-Bの寸法が小さくなる。このように接続部分が側壁板34へ向かってすぼむことで、接続部分の近傍の剛性を向上できる。 The connecting portion between the cylindrical fixing part 31 whose outer peripheral surface is a curved surface and the curved corner part 35 has a dimension in the front-rear direction FB as it moves toward the side wall plate 34 because the directions of the curved surfaces differ by 90 degrees. becomes smaller. By shrinking the connecting portion toward the side wall plate 34 in this manner, the rigidity in the vicinity of the connecting portion can be improved.

図1及び図4に示すように、取付板36は、第2板33を左右方向L-Rへそれぞれ延長した略平板状の部位であり、左右一対に設けられる。なお、左右両側で取付板36の寸法は異なるが、両者に同一の符号を付して説明を簡略化している。この説明の簡略化は、取付板37でも同一である。 As shown in FIGS. 1 and 4, the mounting plates 36 are substantially flat plate-shaped portions that extend the second plate 33 in the left-right direction LR, and are provided in a pair on the left and right sides. Although the dimensions of the mounting plates 36 on both the left and right sides are different, the same reference numerals are given to both sides to simplify the explanation. This simplification of explanation also applies to the mounting plate 37.

取付板36には、上下方向U-Dに貫通する2つの取付孔36aが前後方向F-Bに離れて形成されている。また、一対の取付板36の左右内縁と側壁板34の下縁との隅が前後方向F-Bの略全長に亘って溶接され、その溶接により溶接ビード40が形成される。これにより、取付板36との一体成形品である第2板33が側壁板34に連結される。更に取付板36は、側壁板34から左右方向L-Rへ垂直に張り出したものとなる。 Two mounting holes 36a penetrating in the up-down direction UD are formed in the mounting plate 36 and are spaced apart in the front-rear direction FB. Further, the corners of the left and right inner edges of the pair of mounting plates 36 and the lower edges of the side wall plates 34 are welded over substantially the entire length in the front-rear direction FB, and a weld bead 40 is formed by this welding. As a result, the second plate 33, which is integrally molded with the mounting plate 36, is connected to the side wall plate 34. Further, the mounting plate 36 extends vertically from the side wall plate 34 in the left-right direction LR.

取付板37は、取付板36の上方向Uに離れて配置される平板状の部位であり、左右一対に設けられる。取付板37は、上下方向U-Dに相対する取付板36と同一形状および同一寸法に形成される。即ち、取付板37には、取付板36の取付孔36aに対応する位置に取付孔37aが貫通形成されている。 The mounting plates 37 are flat plate-shaped portions arranged apart from each other in the upward direction U of the mounting plate 36, and are provided in a pair on the left and right sides. The mounting plate 37 is formed to have the same shape and dimensions as the mounting plate 36 facing in the vertical direction UD. That is, a mounting hole 37a is formed through the mounting plate 37 at a position corresponding to the mounting hole 36a of the mounting plate 36.

取付板37の左右内縁が側壁板34に前後方向F-Bの略全長に亘って溶接され、その溶接により溶接ビード41が形成される。これにより、取付板37は、側壁板34から左右方向L-Rへ垂直に張り出したものとなる。また、取付板36と取付板37とは互いに平行に配置される。 The left and right inner edges of the mounting plate 37 are welded to the side wall plate 34 over substantially the entire length in the front-rear direction FB, and a weld bead 41 is formed by this welding. As a result, the mounting plate 37 extends vertically from the side wall plate 34 in the left-right direction LR. Further, the mounting plate 36 and the mounting plate 37 are arranged parallel to each other.

連環板38は、鋼板からの抜き打ち加工によって形成される板状の部材である。連環板38は、前後方向F-Bの両端にそれぞれ設けられた環状板38aと、2枚の環状板38a同士を連結する連結部38cと、を備える。 The link plate 38 is a plate-shaped member formed by punching from a steel plate. The connecting ring plate 38 includes annular plates 38a provided at both ends in the front-rear direction FB, and a connecting portion 38c that connects the two annular plates 38a.

環状板38aは、中央に取付孔38bが形成された円環状の部位である。取付孔38bの内径は、取付板36,37の取付孔36a,37aの内径と略同一である。また、前後方向F-Bにそれぞれ離れた2つの取付孔36a,37aの間隔と、2枚の環状板38aの取付孔38bの間隔とが同一になるよう、連結部38cの前後方向F-Bの寸法が設定されている。 The annular plate 38a is an annular portion with a mounting hole 38b formed in the center. The inner diameter of the mounting hole 38b is approximately the same as the inner diameter of the mounting holes 36a, 37a of the mounting plates 36, 37. Further, the connecting portion 38c is arranged so that the distance between the two mounting holes 36a and 37a, which are separated from each other in the front-back direction FB, and the distance between the mounting holes 38b of the two annular plates 38a are the same. The dimensions are set.

取付板36と取付板37との間には、複数(本実施形態では4枚)の連環板38を上下方向U-Dに重ねて形成したスペーサが挟み込まれる。この取付板36,37及び連環板38(スペーサ)が重なった部分には、取付孔36a,37a,38bが上下方向U-Dに連なるように貫通形成されている。 A spacer formed by stacking a plurality (four in this embodiment) of linking plates 38 in the vertical direction UD is sandwiched between the mounting plate 36 and the mounting plate 37. Attachment holes 36a, 37a, and 38b are formed through the overlapping portions of the attachment plates 36, 37 and the linking plate 38 (spacer) so as to be continuous in the vertical direction UD.

なお、第2ブラケット30を製造するには、まず鋼板(板材)に対する抜き打ち加工や曲げ加工によって固定部31や連環板38等の各部品を形成する。次いで、側壁板34を第2板33及び取付板36に溶接する。次いで、取付孔36a,38bの位置を合わせながら、取付板36の上に複数の連環板38を重ねる。次いで、取付孔37a,38bの位置を合わせながら、連環板38の上に取付板37を重ねる。次いで、取付板37を側壁板34に溶接する。最後に、重ねた部分がボルト39の挿入前にずれないよう、複数の連環板38の連結部38c同士と、連結部38c及び取付板36,37とをそれぞれ溶接して溶接ビード42を形成する。 In order to manufacture the second bracket 30, first, parts such as the fixing part 31 and the link plate 38 are formed by punching or bending a steel plate (plate material). Next, the side wall plate 34 is welded to the second plate 33 and the mounting plate 36. Next, the plurality of link plates 38 are stacked on the mounting plate 36 while aligning the positions of the mounting holes 36a and 38b. Next, the mounting plate 37 is stacked on the link plate 38 while aligning the positions of the mounting holes 37a and 38b. Next, the mounting plate 37 is welded to the side wall plate 34. Finally, in order to prevent the overlapped portions from shifting before the bolts 39 are inserted, the connecting portions 38c of the plurality of link plates 38, the connecting portions 38c and the mounting plates 36, 37 are welded to each other to form a weld bead 42. .

以上説明した防振装置10によれば、第2ブラケット30の取付孔36a,37a,38bに挿入したボルト39を車体側に取り付けることで、第2ブラケット30が車体側に締結される。この締結部分は、取付板36,37及び環状板38aの重なりによって厚くなっている。その結果、第2ブラケット30の締結部分を高剛性化でき、第2ブラケット30の耐久性を向上できる。 According to the vibration isolator 10 described above, the second bracket 30 is fastened to the vehicle body by attaching the bolts 39 inserted into the mounting holes 36a, 37a, and 38b of the second bracket 30 to the vehicle body. This fastening portion is thick due to the overlapping of the mounting plates 36, 37 and the annular plate 38a. As a result, the fastening portion of the second bracket 30 can be made highly rigid, and the durability of the second bracket 30 can be improved.

なお、取付板36,37の間に挟み込むスペーサとしては、複数の環状板38aを重ねたものに代えて、1本の円筒体(例えば第2実施形態のスペーサ52)を用いても良い。但し、環状板38aを用いる方が、環状板38aを重ねる枚数の調整により取付板36,37間の距離を容易に調整できる。加えて、鋼板からの抜き打ち加工などによって低コストで環状板38aを製造し易い。 Note that as the spacer sandwiched between the mounting plates 36 and 37, a single cylindrical body (for example, the spacer 52 of the second embodiment) may be used instead of a plurality of stacked annular plates 38a. However, when the annular plate 38a is used, the distance between the mounting plates 36 and 37 can be easily adjusted by adjusting the number of stacked annular plates 38a. In addition, it is easy to manufacture the annular plate 38a at low cost by punching a steel plate or the like.

更に、環状板38aと共に、ボルト39による締結部分を高剛性化するための取付板36,37も、鋼板からの抜き打ち加工により形成でき、曲げ加工や絞り加工などを不要にできる。そのため、締結部分を高剛性化するための構成を更に低コストで製造し易くできる。 Furthermore, together with the annular plate 38a, the mounting plates 36 and 37 for increasing the rigidity of the parts fastened by the bolts 39 can also be formed by punching from a steel plate, making bending, drawing, etc. unnecessary. Therefore, the structure for increasing the rigidity of the fastening portion can be manufactured more easily at lower cost.

また、取付板36,37の間に複数の環状板38a(スペーサ)を挟み込む場合、連結部38cを省略しても良い。しかし、スペーサに連結部38cが無い場合と比べて連結部38cが有る方が、スペーサを構成する部品点数を削減できる。 Further, when a plurality of annular plates 38a (spacers) are sandwiched between the mounting plates 36 and 37, the connecting portion 38c may be omitted. However, the number of parts constituting the spacer can be reduced when the spacer includes the connecting portion 38c compared to when the spacer does not have the connecting portion 38c.

更に、この連結部38cを設けることで、溶接ビード42を連結部38cに形成できる。これにより、複数枚重ねられた環状板38a毎に溶接ビード42を形成(溶接)しなくてよいので、溶接回数を低減できる。加えて、ボルト39からの軸力が作用する取付孔36a,37a,38bの近傍(環状板38a等)から溶接ビード42を離すことができる。その結果、溶接ビード42によって取付孔36a,37a,38bの近傍の一部が盛り上がる等、溶接に伴う形状変化がボルト39の軸力に影響することを抑制できる。即ち、溶接ビード42を連結部38cに形成することによって、ボルト39の軸力を低下し難くできる。 Furthermore, by providing this connecting portion 38c, a weld bead 42 can be formed in the connecting portion 38c. Thereby, it is not necessary to form (weld) the weld bead 42 for each of the plurality of stacked annular plates 38a, so the number of times of welding can be reduced. In addition, the weld bead 42 can be separated from the vicinity of the mounting holes 36a, 37a, 38b (such as the annular plate 38a) where the axial force from the bolt 39 acts. As a result, the axial force of the bolt 39 can be suppressed from being affected by changes in shape due to welding, such as swelling of parts of the mounting holes 36a, 37a, and 38b by the weld bead 42. That is, by forming the weld bead 42 on the connecting portion 38c, the axial force of the bolt 39 can be made difficult to reduce.

第1ブラケット11から第2ブラケット30へ左右方向L-Rの入力が有った場合には、ボルト39と側壁板34との間で、その入力に対し略真っ直ぐに取付板36,37が突っ張る。これにより、左右方向L-Rの入力に対する第2ブラケット30の剛性を向上でき、第2ブラケット30の耐久性を向上できる。 When there is an input in the left-right direction LR from the first bracket 11 to the second bracket 30, the mounting plates 36 and 37 are stretched substantially straight between the bolt 39 and the side wall plate 34 in response to the input. . Thereby, the rigidity of the second bracket 30 against input in the left-right direction LR can be improved, and the durability of the second bracket 30 can be improved.

特に図3に示すよう、取付板37は、左右方向視において、緩衝体18に覆われた部分のアーム15と重なる位置にある。これにより、左右方向L-Rの入力により防振基体23が変形し、アーム15が緩衝体18を介して側壁板34に押し付けられた場合、アーム15とボルト39との間で略真っ直ぐに取付板37が突っ張る。その結果、左右方向L-Rの入力に対する第2ブラケット30の剛性をより向上でき、第2ブラケット30の耐久性をより向上できる。 In particular, as shown in FIG. 3, the mounting plate 37 is located at a position overlapping the portion of the arm 15 covered by the buffer body 18 when viewed in the left-right direction. As a result, when the vibration isolating base 23 is deformed by input in the left-right direction LR and the arm 15 is pressed against the side wall plate 34 via the buffer 18, the arm 15 and the bolt 39 are installed almost straight. The plate 37 is stretched. As a result, the rigidity of the second bracket 30 against input in the left-right direction LR can be further improved, and the durability of the second bracket 30 can be further improved.

更に、左右方向視において、緩衝体18に覆われた部分のアーム15のうち上下方向U-Dの中央部分に取付板37が重なることが好ましい。この中央部分とは、例えばアーム15の上面を0%とし下面を100%とした場合の25%~75%の部位とする。この場合、左右方向L-Rの入力時にアーム15から第2ブラケット30が主に荷重を受ける領域の略中央に取付板37が位置する。その結果、取付板37による突っ張り効果を向上でき、第2ブラケット30の耐久性を更に向上できる。 Furthermore, when viewed in the left-right direction, it is preferable that the mounting plate 37 overlaps the central portion of the arm 15 covered by the buffer body 18 in the up-down direction UD. This central portion is, for example, a 25% to 75% portion when the upper surface of the arm 15 is 0% and the lower surface is 100%. In this case, the mounting plate 37 is located approximately at the center of the area where the second bracket 30 mainly receives the load from the arm 15 during input in the left-right direction LR. As a result, the bracing effect of the mounting plate 37 can be improved, and the durability of the second bracket 30 can be further improved.

次に図5を参照して第2実施形態について説明する。第1実施形態では、複数の連環板38を重ねて形成したスペーサを取付板36,37間に挟み込む場合について説明した。これに対し第2実施形態では、円筒体であるスペーサ52を取付板36,37間に挟み込む場合について説明する。なお、第1実施形態と同一の部分については、同一の符号を付して以下の説明を省略する。 Next, a second embodiment will be described with reference to FIG. In the first embodiment, a case has been described in which a spacer formed by stacking a plurality of link plates 38 is sandwiched between the mounting plates 36 and 37. In contrast, in the second embodiment, a case will be described in which a cylindrical spacer 52 is sandwiched between mounting plates 36 and 37. Note that the same parts as in the first embodiment are given the same reference numerals, and the following explanation will be omitted.

図5は第2実施形態における防振装置50の斜視図である。防振装置50の第2ブラケット51は、固定部31と、第1板32と、第2板33と、一対の側壁板34と、複数の取付板36,37と、複数のスペーサ52と、複数の垂直補強板53と、を備える。 FIG. 5 is a perspective view of a vibration isolator 50 in the second embodiment. The second bracket 51 of the vibration isolator 50 includes a fixing portion 31, a first plate 32, a second plate 33, a pair of side wall plates 34, a plurality of mounting plates 36 and 37, and a plurality of spacers 52. A plurality of vertical reinforcing plates 53 are provided.

スペーサ52は、ボルト39が挿入される取付孔が軸に沿って形成された円筒体である。即ち、スペーサ52は、互いに重ねた第1実施形態の複数の環状板38aを一体成形したものと同一である。 The spacer 52 is a cylindrical body in which a mounting hole into which the bolt 39 is inserted is formed along its axis. That is, the spacer 52 is the same as the one formed by integrally molding the plurality of annular plates 38a of the first embodiment, which are stacked on top of each other.

このスペーサ52は、複数の取付孔36a,37aの位置でそれぞれ取付板36,37間に挟み込まれる。これにより、第1実施形態と同様に、第2ブラケット51のうちボルト39による締結部分を高剛性化でき、第2ブラケット51の耐久性を向上できる。 This spacer 52 is sandwiched between the mounting plates 36 and 37 at the positions of the plurality of mounting holes 36a and 37a, respectively. Thereby, similarly to the first embodiment, the portion of the second bracket 51 that is fastened by the bolt 39 can be made highly rigid, and the durability of the second bracket 51 can be improved.

また、取付板36,37間に挟み込まれるスペーサ52が1本の円筒体からなるので、第1実施形態のスペーサ(複数の環状板38a)と比べ、スペーサ52を構成する部品点数を削減できる。更に、第2実施形態では、前後方向F-Bに離れたスペーサ52を連結する第1実施形態のような連結部38cが無いので、スペーサ52の形状を単純化できる。その結果、スペーサ52の製造コストを低減し易くできる。 Further, since the spacer 52 sandwiched between the mounting plates 36 and 37 is made of one cylindrical body, the number of parts constituting the spacer 52 can be reduced compared to the spacer (the plurality of annular plates 38a) of the first embodiment. Furthermore, in the second embodiment, unlike the first embodiment, there is no connecting portion 38c that connects the spacers 52 separated in the front-rear direction FB, so that the shape of the spacers 52 can be simplified. As a result, the manufacturing cost of the spacer 52 can be easily reduced.

垂直補強板53は、側壁板34及び取付板37からそれぞれ垂直に立ち上がる略三角形状の板材である。垂直補強板53は、左右方向L-Rの両側でそれぞれ前後方向F-Bに離れて複数配置される。 The vertical reinforcing plate 53 is a substantially triangular plate that stands up vertically from the side wall plate 34 and the mounting plate 37, respectively. A plurality of vertical reinforcing plates 53 are arranged on both sides of the left-right direction LR and spaced apart from each other in the front-rear direction FB.

垂直補強板53の縁と側壁板34との隅が上下方向U-Dの略全長に亘って溶接され、その溶接による溶接ビード54が形成される。更に、垂直補強板53の縁と取付板37との隅が左右方向L-Rの略全長に亘って溶接され、その溶接による溶接ビード55が形成される。 The edge of the vertical reinforcing plate 53 and the corner of the side wall plate 34 are welded over substantially the entire length in the vertical direction UD, and a weld bead 54 is formed by this welding. Further, the edges of the vertical reinforcing plate 53 and the corners of the mounting plate 37 are welded over substantially the entire length in the left-right direction LR, and a weld bead 55 is formed by this welding.

この垂直補強板53によれば、第1ブラケット11から第2ブラケット51へ左右方向L-Rの入力が有った場合、取付板37へ向かって側壁板34を倒れ難くできる。このように、垂直補強板53によって第2ブラケット51の剛性をより向上できる。 According to this vertical reinforcing plate 53, when there is an input from the first bracket 11 to the second bracket 51 in the left-right direction LR, the side wall plate 34 can be prevented from falling down toward the mounting plate 37. In this way, the rigidity of the second bracket 51 can be further improved by the vertical reinforcing plate 53.

次に図6を参照して第3実施形態について説明する。第1実施形態では、上下方向U-Dに離れて配置した2枚の取付板36,37間に複数の連環板38を挟み込む場合について説明した。これに対し第3実施形態では、上下方向U-Dに離れて配置した3枚の取付板36,37,62間にそれぞれ複数の環状板65を挟み込む場合について説明する。なお、第1実施形態と同一の部分については、同一の符号を付して以下の説明を省略する。 Next, a third embodiment will be described with reference to FIG. In the first embodiment, a case has been described in which a plurality of link plates 38 are sandwiched between two mounting plates 36 and 37 arranged apart from each other in the vertical direction UD. On the other hand, in the third embodiment, a case will be described in which a plurality of annular plates 65 are sandwiched between three mounting plates 36, 37, and 62 arranged apart from each other in the vertical direction UD. Note that the same parts as in the first embodiment are given the same reference numerals, and the following explanation will be omitted.

図6は第3実施形態における防振装置60の斜視図である。防振装置60の第2ブラケット61は、固定部31と、第1板32と、第2板33と、一対の側壁板34と、複数の取付板36,37,62と、複数の環状板65と、を備える。 FIG. 6 is a perspective view of a vibration isolator 60 in the third embodiment. The second bracket 61 of the vibration isolator 60 includes a fixing portion 31, a first plate 32, a second plate 33, a pair of side wall plates 34, a plurality of mounting plates 36, 37, 62, and a plurality of annular plates. 65.

取付板62は、取付板37の上方向Uに離れて配置される平板状の部位であり、左右一対に設けられる。取付板62は、上下方向U-Dに相対する取付板37と同一形状および同一寸法に形成される。即ち、取付板62には、取付板37の取付孔37a(図4参照)に対応する位置に、ボルト39が挿入される取付孔が貫通形成されている。 The mounting plates 62 are flat plate-shaped portions arranged apart from each other in the upward direction U of the mounting plate 37, and are provided in a pair on the left and right sides. The mounting plate 62 is formed to have the same shape and dimensions as the mounting plate 37 facing in the vertical direction UD. That is, a mounting hole into which the bolt 39 is inserted is formed through the mounting plate 62 at a position corresponding to the mounting hole 37a of the mounting plate 37 (see FIG. 4).

取付板62の左右内縁が側壁板34に前後方向F-Bの略全長に亘って溶接され、その溶接による溶接ビード63が形成される。この溶接により、取付板62は、側壁板34から左右方向L-Rへ垂直に張り出したものとなる。また、取付板36,37と取付板62とは互いに平行に配置される。 The left and right inner edges of the mounting plate 62 are welded to the side wall plate 34 over substantially the entire length in the front-rear direction FB, and a weld bead 63 is formed by this welding. By this welding, the mounting plate 62 extends vertically from the side wall plate 34 in the left-right direction LR. Further, the mounting plates 36, 37 and the mounting plate 62 are arranged parallel to each other.

環状板65は、第1実施形態の環状板38aと同一に構成され、連結部38cに連結されていない。即ち、環状板65は、ボルト39が挿入される取付孔38b(図4参照)が中央に形成された円環状の部材である。 The annular plate 65 has the same structure as the annular plate 38a of the first embodiment, and is not connected to the connecting portion 38c. That is, the annular plate 65 is an annular member having a mounting hole 38b (see FIG. 4) formed in the center into which the bolt 39 is inserted.

取付板36,37間には、複数(本実施形態では4枚)の環状板65を上下方向U-Dに重ねたスペーサが挟み込まれる。更に、取付板37,62間には、複数(本実施形態では3枚)の環状板65を上下方向U-Dに重ねたスペーサが挟み込まれる。これにより、第1実施形態と同様に、第2ブラケット61のうちボルト39で締結される部分を高剛性化でき、第2ブラケット61の耐久性を向上できる。 A spacer in which a plurality of (four in this embodiment) annular plates 65 are stacked in the vertical direction UD is sandwiched between the mounting plates 36 and 37. Further, a spacer in which a plurality of annular plates 65 (three in this embodiment) are stacked in the vertical direction UD is sandwiched between the mounting plates 37 and 62. Thereby, similarly to the first embodiment, the portion of the second bracket 61 that is fastened with the bolt 39 can be made highly rigid, and the durability of the second bracket 61 can be improved.

更に、第1ブラケット11から第2ブラケット61へ左右方向L-Rの入力が有った場合、ボルト39と側壁板34との間で突っ張る部位を取付板36,37,62の3枚にできる。このように、取付板36,37,62の枚数が多い程、左右方向L-Rの入力に対する第2ブラケット61の剛性をより向上でき、第2ブラケット61の耐久性をより向上できる。 Furthermore, when there is input from the first bracket 11 to the second bracket 61 in the left-right direction LR, the portions to be tensioned between the bolt 39 and the side wall plate 34 can be reduced to three mounting plates 36, 37, and 62. . In this way, the greater the number of mounting plates 36, 37, and 62, the more the rigidity of the second bracket 61 against input in the left-right direction LR can be improved, and the durability of the second bracket 61 can be further improved.

以上、実施形態に基づき本発明を説明したが、本発明は上記実施形態に何ら限定されるものではなく、本発明の趣旨を逸脱しない範囲内で種々の改良変形が可能であることは容易に推察できるものである。例えば、第1部材21の軸心Cと、第2部材22の軸心とをオフセットして配置しても良い。また、ボルト14,17,39を、その他のねじやリベット等の締結部材に置き換えても良い。更に、第2ブラケット30,51,61の各部の接合方法としては、溶接以外に圧接やろう接、接着、ねじ止め等の機械的接合を用いても良い。 Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments, and it is readily understood that various improvements and modifications can be made without departing from the spirit of the present invention. This can be inferred. For example, the axis C of the first member 21 and the axis C of the second member 22 may be offset from each other. Further, the bolts 14, 17, and 39 may be replaced with other fastening members such as screws or rivets. Furthermore, as a method for joining each part of the second brackets 30, 51, 61, mechanical joining such as pressure welding, brazing, adhesion, screwing, etc. may be used in addition to welding.

上記形態では、本発明の防振装置10,50,60がエンジンマウントである場合を例示したが、これに限られない。例えば本発明をモーターマウントやメンバーマウント、デフマウントに適用しても良く、車両以外に搭載される防振装置に適用しても良い。また、エンジンなどの振動源側に第1ブラケット11を取り付け、車体などの振動受側に第2ブラケット30,51,61を取り付ける場合に限らず、振動受側に第1ブラケット11を取り付けて振動源側に第2ブラケット30,51,61を取り付けても良い。 In the above embodiment, the vibration isolator 10, 50, 60 of the present invention is an engine mount, but the present invention is not limited to this. For example, the present invention may be applied to a motor mount, a member mount, or a differential mount, or may be applied to a vibration isolator mounted on something other than a vehicle. In addition, it is not limited to the case where the first bracket 11 is attached to the vibration source side such as an engine, and the second bracket 30, 51, 61 is attached to the vibration receiving side such as the car body, but it is also possible to attach the first bracket 11 to the vibration receiving side to generate vibrations. A second bracket 30, 51, 61 may be attached to the source side.

上記形態では、第2ブラケット30,51,61の固定部31が円筒状であり、その固定部31に円筒状の第2部材22が圧入される場合を説明したが、これに限られない。例えば、固定部31を第2部材22に嵌めて両者を溶接するなど、圧入は必須ではない。また、固定部31及び第2部材22を楕円筒状に形成したり、角筒状などその他の筒状に形成しても良い。なお、固定部31が楕円筒状であれば円筒状である場合と同様に、固定部31と角部35との接続部分を側壁板34へ向かってすぼめることができ、その接続部分の近傍の剛性を向上できる。 In the above embodiment, the fixing portion 31 of the second bracket 30, 51, 61 is cylindrical, and the cylindrical second member 22 is press-fitted into the fixing portion 31. However, the present invention is not limited to this. For example, press fitting is not essential, such as fitting the fixing part 31 into the second member 22 and welding them together. Further, the fixing portion 31 and the second member 22 may be formed into an elliptical cylinder shape, or may be formed into another cylinder shape such as a rectangular cylinder shape. Note that if the fixing part 31 has an elliptical cylindrical shape, the connecting part between the fixing part 31 and the corner part 35 can be narrowed toward the side wall plate 34, as in the case where the fixing part 31 is cylindrical. The rigidity can be improved.

また、第2ブラケット30,51,61に固定される第2部材を上記形態の第1部材21に置き換え、第1ブラケット11に固定される第1部材を上記形態の第2部材22に置き換えても良い。この場合、第1板32の中央に設けた孔を固定部とし、その固定部にボルト17等で第2部材(上記形態の第1部材21)を固定する。加えて、アーム15の先端を円筒状にし、その先端に第1部材(上記形態の第2部材22)を嵌めれば良い。 Further, the second member fixed to the second brackets 30, 51, 61 is replaced with the first member 21 of the above form, and the first member fixed to the first bracket 11 is replaced with the second member 22 of the above form. Also good. In this case, a hole provided in the center of the first plate 32 is used as a fixing part, and the second member (first member 21 of the above embodiment) is fixed to the fixing part with bolts 17 or the like. In addition, the tip of the arm 15 may be made into a cylindrical shape, and the first member (the second member 22 of the above configuration) may be fitted to the tip.

上記形態では、ボルト39が挿入される取付孔36a,37a,38bが、第2ブラケット30,51,61の左右両側で2か所ずつ設けられる場合を説明したが、これに限られない。例えば、取付孔36a,37a,38bを設ける位置を左右両側で1か所や3か所以上としても良く、その数を左右両側で異ならせても良い。更に、左右両側のそれぞれで、複数の取付孔36a,37a,38bを左右方向L-Rにずらして配置しても良い。また、複数のボルト39による締結部分の少なくとも1か所で取付板36の上に環状板38a及び取付板37を重ね、その他の締結部分を取付板36の1枚のみにしても良い。 In the above embodiment, a case has been described in which the mounting holes 36a, 37a, 38b into which the bolts 39 are inserted are provided at two locations on each of the left and right sides of the second brackets 30, 51, 61, but the present invention is not limited to this. For example, the mounting holes 36a, 37a, and 38b may be provided at one or more positions on both the left and right sides, or the number may be different between the left and right sides. Furthermore, the plurality of mounting holes 36a, 37a, and 38b may be arranged to be shifted in the left-right direction LR on each of the left and right sides. Alternatively, the annular plate 38a and the mounting plate 37 may be overlapped on the mounting plate 36 at at least one of the parts fastened by the plurality of bolts 39, and only one of the mounting plates 36 is used for the other fastening parts.

上記第1実施形態では、連結部38cに溶接ビード42が形成される場合を説明したが、これに限られない。環状板38aに溶接ビード42を形成しても良い。また、上下方向U-Dに重なった環状板38a同士や連結部38c同士、それらと取付板36,37とをスポット溶接やプロジェクション溶接などで溶接しても良い。なお、これらの各部を溶接しなくても良い。 In the first embodiment, a case has been described in which the weld bead 42 is formed in the connecting portion 38c, but the present invention is not limited to this. A weld bead 42 may be formed on the annular plate 38a. Furthermore, the annular plates 38a and the connecting portions 38c that overlap in the vertical direction UD, and the mounting plates 36 and 37 may be welded together by spot welding, projection welding, or the like. Note that these parts do not need to be welded.

上記第1,3実施形態では、同一形状の連環板38や環状板65を重ねてスペーサを形成する場合を説明したが、これに限られない。例えば連環板38と環状板65とを重ねても良い。また、連環板38や環状板65の一部や全部を、取付板37,62と同一形状のものに置き換えても良い。 In the first and third embodiments described above, a case has been described in which the spacer is formed by stacking the connecting ring plates 38 and the annular plates 65 of the same shape, but the present invention is not limited to this. For example, the connecting ring plate 38 and the annular plate 65 may be overlapped. Further, part or all of the linking plate 38 and the annular plate 65 may be replaced with those having the same shape as the mounting plates 37 and 62.

更に、第2ブラケット30,51,61の取付板36の下面に連環板38やスペーサ52、環状板65を1つ以上重ねても良い。同様に、取付板37,62の上面に連環板38やスペーサ52、環状板65を1つ以上重ねても良い。 Furthermore, one or more linking plates 38, spacers 52, and annular plates 65 may be stacked on the lower surface of the mounting plate 36 of the second brackets 30, 51, and 61. Similarly, one or more linking plates 38, spacers 52, and annular plates 65 may be stacked on top of the mounting plates 37, 62.

上記形態では、取付板36が第2板33との一体成形品である場合を説明したが、これに限られない。例えば、第2板33に取付板36を接合(溶接やねじ止め等)したり、取付板36を側壁板34との一体成形品にしても良い。更に、第2板33に対し取付板36を上方向Uへずらしても良い。 In the above embodiment, a case has been described in which the mounting plate 36 is integrally molded with the second plate 33, but the present invention is not limited to this. For example, the mounting plate 36 may be joined to the second plate 33 (by welding, screwing, etc.), or the mounting plate 36 may be integrally molded with the side wall plate 34. Furthermore, the mounting plate 36 may be shifted in the upward direction U with respect to the second plate 33.

また、側壁板34を第2板33から下方向Dへ延長し、第2板33に対し取付板36を下方向Dへずらしても良い。この場合、第2ブラケット30,51,61のうちアーム15を囲む部分が車体側から浮くため、その部分を上下反転しても良い。具体的に、側壁板34の下縁側に第1板32を連結して、第1板32から下方向Dへ固定部31を突出させても良い。また、取付板36の下面に連環板38等を重ね、アーム15を囲む部分を浮かした場合も同様である。 Alternatively, the side wall plate 34 may be extended in the downward direction D from the second plate 33, and the mounting plate 36 may be shifted in the downward direction D with respect to the second plate 33. In this case, since the portion of the second brackets 30, 51, and 61 surrounding the arm 15 floats from the vehicle body side, that portion may be turned upside down. Specifically, the first plate 32 may be connected to the lower edge side of the side wall plate 34, and the fixing portion 31 may be made to protrude in the downward direction D from the first plate 32. The same applies when the connecting plate 38 or the like is stacked on the lower surface of the mounting plate 36 and the portion surrounding the arm 15 is raised.

上記各形態の構成の一部を省略したり、互いに組み合わせても良い。例えば、第2実施形態における垂直補強板53を第1,3実施形態の第2ブラケット30,61に適用しても良い。いずれの実施形態においても、取付板37,62や側壁板34の縁を曲げて垂直補強板53を形成しても良い。 Some of the configurations of the above embodiments may be omitted or may be combined with each other. For example, the vertical reinforcing plate 53 in the second embodiment may be applied to the second brackets 30 and 61 in the first and third embodiments. In either embodiment, the vertical reinforcing plate 53 may be formed by bending the edges of the mounting plates 37, 62 and the side wall plate 34.

また、第2,3実施形態においても第1実施形態のように、スペーサ52や環状板65を取付板36,37,62に接合したり、環状板65同士を接合しても良い。第1実施形態のように第2実施形態の複数のスペーサ52を連結部で連結しても良い。また、左右いずれか一方の取付板36,37,62等を省略しても良い。 Further, in the second and third embodiments, the spacer 52 and the annular plate 65 may be joined to the mounting plates 36, 37, and 62, or the annular plates 65 may be joined to each other, as in the first embodiment. As in the first embodiment, the plurality of spacers 52 of the second embodiment may be connected by a connecting portion. Further, the mounting plates 36, 37, 62, etc. on either the left or right side may be omitted.

10,50,60 防振装置
11 第1ブラケット
15 アーム
20 防振装置本体
21 第1部材
22 第2部材
23 防振基体
30,51,61 第2ブラケット
31 固定部
32 第1板
33 第2板
34 側壁板
35 角部
36,37,62 取付板
36a,37a,38b 取付孔
38 連環板
38a,65 環状板
38c 連結部
39 ボルト(締結部材)
52 スペーサ
53 垂直補強板
F-B 前後方向(第1方向)
U-D 上下方向(第2方向)
L-R 左右方向(第3方向)

10, 50, 60 vibration isolator 11 first bracket 15 arm 20 vibration isolator main body 21 first member 22 second member 23 vibration isolator base 30, 51, 61 second bracket 31 fixed part 32 first plate 33 second plate 34 Side wall plate 35 Corner 36, 37, 62 Mounting plate 36a, 37a, 38b Mounting hole 38 Linking plate 38a, 65 Annular plate 38c Connecting part 39 Bolt (fastening member)
52 Spacer 53 Vertical reinforcing plate FB Front-rear direction (first direction)
U-D Vertical direction (second direction)
L-R Left and right direction (third direction)

Claims (7)

第1部材および第2部材を弾性体製の防振基体で連結した防振装置本体と、
第1方向に延びて前記第1部材が固定されるアームを有し、振動源側および振動受側の一方に取り付けられる第1ブラケットと、
前記振動源側および前記振動受側の他方に締結部材で締結される第2ブラケットと、を備え、
前記第2ブラケットは、前記第2部材が固定される固定部と、
前記固定部が設けられる第1板と、
前記第1方向に垂直な第2方向に関し前記第1板との間に前記アームを挟んで相対する第2板と、
前記第1方向および前記第2方向に垂直な第3方向に前記アームを挟んで互いに相対し前記第1板および前記第2板を連結する一対の側壁板と、
前記側壁板から前記第3方向へそれぞれ張り出し前記第2方向に互いに離れて配置される複数の取付板と、
複数の前記取付板の間で前記第2方向に挟み込まれるスペーサと、を備え、
前記取付板および前記スペーサが互いに重なった部分には、前記締結部材が挿入される取付孔が前記第2方向に貫通形成されていることを特徴とする防振装置。
a vibration isolating device main body in which a first member and a second member are connected by a vibration isolating base made of an elastic body;
a first bracket having an arm extending in a first direction to which the first member is fixed, and attached to one of a vibration source side and a vibration receiving side;
a second bracket fastened to the other of the vibration source side and the vibration receiving side with a fastening member;
The second bracket includes a fixing part to which the second member is fixed;
a first plate provided with the fixing part;
a second plate facing the first plate with the arm sandwiched therebetween in a second direction perpendicular to the first direction;
a pair of side wall plates facing each other across the arm in a third direction perpendicular to the first direction and the second direction and connecting the first plate and the second plate;
a plurality of mounting plates that respectively extend from the side wall plate in the third direction and are spaced apart from each other in the second direction;
a spacer sandwiched in the second direction between the plurality of mounting plates;
The vibration isolator is characterized in that a mounting hole into which the fastening member is inserted is formed in a portion where the mounting plate and the spacer overlap each other in the second direction.
前記第2方向に離れた複数の前記取付板のうち少なくとも1枚は、前記第3方向から見て前記アームと重なる位置にあることを特徴とする請求項1記載の防振装置。 The vibration isolator according to claim 1, wherein at least one of the plurality of mounting plates spaced apart in the second direction is located at a position overlapping the arm when viewed from the third direction. 前記第1板と前記側壁板とは、縁同士が曲面状の角部で連結され、
前記固定部は、前記第1板および前記角部から前記第2板とは反対側へ突出して前記第2部材が内側に嵌まる円筒状または楕円筒状に形成され、
前記固定部と前記角部との接続部分は、前記側壁板へ向かうにつれて前記第1方向の寸法が小さくなることを特徴とする請求項1記載の防振装置。
The first plate and the side wall plate have edges connected to each other at curved corners,
The fixing part is formed in a cylindrical shape or an elliptical cylindrical shape that protrudes from the first plate and the corner part to a side opposite to the second plate and into which the second member fits,
2. The vibration isolator according to claim 1, wherein a dimension of a connecting portion between the fixing portion and the corner portion in the first direction decreases toward the side wall plate.
前記第2ブラケットは、前記側壁板および前記取付板から垂直に立ち上がる垂直補強板を備えることを特徴とする請求項1記載の防振装置。 2. The vibration isolator according to claim 1, wherein the second bracket includes a vertical reinforcing plate that stands up vertically from the side wall plate and the mounting plate. 前記スペーサは、前記取付孔を中央に設けた複数の環状板を前記第2方向に重ねて形成されていることを特徴とする請求項1から4のいずれかに記載の防振装置。 5. The vibration isolator according to claim 1, wherein the spacer is formed by stacking a plurality of annular plates in the second direction with the mounting hole provided in the center. 前記取付板には、前記取付孔が複数設けられ、
前記スペーサは、複数の前記取付孔に対応するように前記第1方向および前記第3方向の少なくとも一方に離れた前記環状板同士を連結部で連結した連環板を前記第2方向に複数重ねて形成されていることを特徴とする請求項5記載の防振装置。
The mounting plate is provided with a plurality of mounting holes,
The spacer includes a plurality of connected ring plates stacked in the second direction in which the ring plates separated in at least one of the first direction and the third direction are connected by connecting portions so as to correspond to the plurality of mounting holes. The vibration isolating device according to claim 5, wherein the vibration isolating device is formed.
前記第2方向に重なった前記連結部が互いに接合されると共に、前記連結部が前記取付板に接合されることを特徴とする請求項6記載の防振装置。 The vibration isolator according to claim 6, wherein the connecting portions that overlap in the second direction are joined to each other, and the connecting portion is joined to the mounting plate.
JP2022081946A 2022-05-19 2022-05-19 Antivibration device Pending JP2023170298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022081946A JP2023170298A (en) 2022-05-19 2022-05-19 Antivibration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022081946A JP2023170298A (en) 2022-05-19 2022-05-19 Antivibration device

Publications (1)

Publication Number Publication Date
JP2023170298A true JP2023170298A (en) 2023-12-01

Family

ID=88928144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022081946A Pending JP2023170298A (en) 2022-05-19 2022-05-19 Antivibration device

Country Status (1)

Country Link
JP (1) JP2023170298A (en)

Similar Documents

Publication Publication Date Title
JP5209339B2 (en) Engine mount with bracket
JP6190651B2 (en) Vibration isolator
JPH0932875A (en) Cylindrical vibrationproofing support body
WO2016052278A1 (en) Antivibration device
JP6157000B2 (en) Vibration isolator
WO2006057030A1 (en) Liquid-sealed vibration-isolating device and liquid-sealed vibration-isolating device unit
JP6532367B2 (en) Tubular vibration control with bracket
WO2014141929A1 (en) Antivibration device
JP6494321B2 (en) Anti-vibration device bracket, anti-vibration device with bracket, and manufacturing method of anti-vibration device bracket
JP2015140871A (en) Vibration isolator with brackets
JP6783162B2 (en) Anti-vibration device with bracket
JP5959918B2 (en) Bracket and anti-vibration connecting rod
JP3893977B2 (en) Vibration isolator
JPH10141437A (en) Cylindrical vibration-proof support body
JP2023170298A (en) Antivibration device
JP2013117259A (en) Vibration damping device
JPS6330534B2 (en)
JP2010159861A (en) Vibration absorbing device
JP4469349B2 (en) Outer cylinder side bracket with stopper for cylindrical rubber mount
JP3716632B2 (en) Cylindrical anti-vibration mount
JP2015218754A (en) Engine mount
JP2014066297A (en) Cylindrical type vibration control device
JP2000074115A (en) Cylindrical vibration isolating mount
JP2009030664A (en) Upper support assembling object and its assembling method
JP6510861B2 (en) Outer bracket for anti-vibration device and anti-vibration device with bracket using the same