WO2023176294A1 - Vibration-proof bush - Google Patents

Vibration-proof bush Download PDF

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Publication number
WO2023176294A1
WO2023176294A1 PCT/JP2023/005499 JP2023005499W WO2023176294A1 WO 2023176294 A1 WO2023176294 A1 WO 2023176294A1 JP 2023005499 W JP2023005499 W JP 2023005499W WO 2023176294 A1 WO2023176294 A1 WO 2023176294A1
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Prior art keywords
flat plate
vibration
axial direction
outer cylinder
cylindrical
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PCT/JP2023/005499
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French (fr)
Japanese (ja)
Inventor
靖之 脇田
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株式会社プロスパイラ
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Publication of WO2023176294A1 publication Critical patent/WO2023176294A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

Definitions

  • the present invention relates to a vibration isolating bush.
  • This application claims priority based on Japanese Patent Application No. 2022-038869 filed in Japan on March 14, 2022, and the entire content thereof is incorporated herein by reference.
  • an outer cylinder is attached to either one of the vibration generating part and the vibration receiving part, and an inner cylinder is attached to the other and is disposed inside the outer cylinder.
  • a vibration-proof bushing includes a member and an elastic body that connects an outer cylinder and an inner member.
  • the shape of the attachment portion attached to the other of the vibration generating portion and the vibration receiving portion is generally flat or cylindrical.
  • the present invention has been made in consideration of these circumstances, and provides a vibration-proof bushing in which an elastic body can be vulcanized using the same mold even if the shape of the mounting portion of the inner member is different.
  • the purpose is to
  • the vibration isolating bush of the present invention includes an outer cylinder attached to either one of the vibration generating part and the vibration receiving part, and an outer cylinder attached to the other. , an inner member disposed inside the outer cylinder, and an elastic body connecting the outer cylinder and the inner member, the inner member extending in an axial direction in which a central axis of the outer cylinder extends.
  • the inner member includes a cylindrical portion and a flat plate portion, if the shape of the attachment portion attached to the other of the vibration generating portion and the vibration receiving portion of the inner member is flat, the flat plate portion may be used. In the case of a cylindrical shape, it becomes possible to use a cylindrical portion in which no flat plate portion is inserted, and the shape of the attachment portion of the inner member can be selected.
  • the flat plate part Since the elastic body is connected to the cylindrical part of the inner member, the flat plate part is not inserted into the cylindrical part, only the cylindrical part is used as an insert product, and the elastic body is vulcanized and molded, and the mounting part of the inner member is If the shape of is a flat plate, then the flat plate part is inserted into the cylindrical part, the gap is filled with a resin material, and the cylindrical part and the flat plate part are bonded. It becomes possible to always vulcanize and mold the elastic body with only the cylindrical part as an insert product, and the same mold can be used regardless of the case.
  • a pair of locking protrusions may be formed on the inner circumferential surface of the cylindrical portion to sandwich the front and back surfaces of the flat plate portion in the radial direction.
  • a pair of locking protrusions are formed on the inner circumferential surface of the cylindrical portion to sandwich the front and back surfaces of the flat plate portion in the radial direction. , it is possible to suppress misalignment of the flat plate portion with respect to the cylindrical portion.
  • Both ends of the cylindrical portion in the axial direction may protrude from the outer cylinder in the axial direction.
  • both axial ends of the cylindrical portion protrude from the outer cylinder in the axial direction, both axial ends of the cylindrical portion can be used as mounting portions to be attached to either the vibration generating portion or the vibration receiving portion.
  • this attachment part can be easily attached to either the vibration generating part or the vibration receiving part.
  • the same mold can be used to vulcanize the elastic body.
  • FIG. 2 is a longitudinal cross-sectional view of a vibration isolating bush shown as one embodiment. 2 is a sectional view taken along the line II-II in FIG. 1. FIG.
  • the anti-vibration bushing 1 includes an outer cylinder 11 attached to one of a vibration generating section and a vibration receiving section, an inner member 12 attached to the other and disposed inside the outer tube 11, and an outer tube. 11 and an elastic body 13 connecting the inner member 12.
  • the anti-vibration bush 1 is used, for example, as a suspension bush or engine mount for automobiles, or as a mount for industrial machinery installed in a factory.
  • the direction along the central axis O of the outer cylinder 11 will be referred to as the axial direction.
  • the direction intersecting the central axis O is called the radial direction, and the direction going around the central axis O is called the circumferential direction.
  • the elastic body 13 is made of rubber material.
  • the elastic body 13 is vulcanized and bonded to the inner peripheral surface of the outer cylinder 11.
  • the inner member 12 includes a cylindrical portion 14 that extends in the axial direction and is connected to an elastic body 13, and a flat plate portion 15 that is inserted into the cylindrical portion 14.
  • the cylindrical portion 14 and the flat plate portion 15 are made of, for example, a metal material.
  • the elastic body 13 is vulcanized and bonded to the outer peripheral surface of the cylindrical portion 14 .
  • the cylindrical portion 14 is arranged coaxially with the central axis O. Both ends of the cylindrical portion 14 in the axial direction protrude from the outer tube 11 in the axial direction.
  • a pair of locking protrusions 16 are formed on the inner circumferential surface of the cylindrical portion 14 to sandwich the front and back surfaces of the flat plate portion 15 in the radial direction.
  • the locking protrusion 16 is formed into a rectangular parallelepiped shape extending in the axial direction. Both end surfaces of the locking protrusion 16 in the axial direction are continuous with the opening edges of the cylindrical portion 14 at both ends in the axial direction without any difference in level.
  • the radially inner end surfaces of the pair of locking protrusions 16 are in contact with the front and back surfaces of the flat plate portion 15, respectively.
  • Both ends of the flat plate part 15 in the axial direction protrude from the cylindrical part 14 in the axial direction, and are attached to the other of the vibration generating part and the vibration receiving part.
  • Mounting holes 15a are formed at both ends of the flat plate part 15 in the axial direction to attach the flat plate part 15 to the other of the vibration generating part and the vibration receiving part.
  • the mounting hole 15a is a through hole that penetrates the flat plate portion 15 in the thickness direction. This plate thickness direction coincides with the direction in which the locking protrusion 16 projects from the inner circumferential surface of the cylindrical portion 14 in the radial direction.
  • the side surface of the flat plate portion 15 is in contact with or close to the inner circumferential surface of the cylindrical portion 14 .
  • the central axis O is located at the center of both end surfaces of the flat plate portion 15 in the axial direction. That is, the flat plate portion 15 is disposed coaxially with the central axis O.
  • a resin material 17 is filled in the gap between the tubular portion 14 and the flat plate portion 15 .
  • the resin material 17 adheres the cylindrical portion 14 and the flat plate portion 15.
  • the resin material 17 is provided over the entire length of the cylindrical portion 14 in the axial direction.
  • the outer cylinder 11 and the cylindrical part 14 are used as insert products, and the elastic body 13 is vulcanized and bonded to the inner circumferential surface of the outer cylinder 11 and the outer circumferential surface of the cylindrical part 14.
  • the inner member 12 when the shape of the attachment part attached to the other of the vibration generating part and the vibration receiving part is a flat plate, with the flat plate part 15 inserted into the cylindrical part 14,
  • the cylindrical part 14 In the cylindrical part 14 , a gap between the cylindrical part 14 and the flat plate part 15 is filled with a resin material 17 by injection molding, and the cylindrical part 14 and the flat plate part 15 are bonded together using the resin material 17 .
  • the inner member 12 includes the cylindrical portion 14 and the flat plate portion 15, so that the inner member 12 has a vibration generating portion and a vibration receiving portion. If the shape of the attachment part to be attached to the other is a flat plate, the flat plate part 15 is used, and if it is cylindrical, it is possible to use the cylindrical part 14 in which the flat plate part 15 is not inserted. The shape of the attachment portion of member 12 can be selected.
  • the flat plate part 15 is not inserted into the cylindrical part 14, and the elastic body 13 is vulcanized and molded using only the cylindrical part 14 as an insert product. If the mounting portion of the inner member 12 has a flat plate shape, then the flat plate portion 15 is inserted into the cylindrical portion 14 and the gap is filled with resin material 17 to connect the cylindrical portion 14 and the flat plate portion. 15, it is possible to always vulcanize and mold the elastic body 13 using only the cylindrical part 14 as an insert product, regardless of the shape of the attachment part of the inner member 12, and the same mold can be used. .
  • both axial ends of the cylindrical portion 14 protrude from the outer cylinder 11 in the axial direction, both axial ends of the cylindrical portion 14 can be attached to the other of the vibration generating portion and the vibration receiving portion.
  • this attachment part can be easily attached to either the vibration generating part or the vibration receiving part.
  • the radially inner end surface of the locking protrusion 16 may be separated from the front and back surfaces of the flat plate portion 15 in the radial direction. It is not necessary to provide the locking protrusion 16 on the inner circumferential surface of the cylindrical portion 14.
  • the side surface of the flat plate portion 15 may be separated from the inner circumferential surface of the cylindrical portion 14 in the radial direction.
  • the axial ends of the outer tube 11 and the cylindrical portion 14 may be located at the same axial position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Springs (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

A vibration-proof bush comprises an outer cylinder (11) attached to either one of a vibration-generating part and a vibration-receiving part, an inner-side member (12) attached to the other and disposed on the inner side of the outer cylinder, and an elastic body (13) connecting the outer cylinder and the inner-side member, the inner-side member extending in an axial direction in which a center axis (O) of the outer cylinder extends and having a cylinder part (14) to which the elastic body is connected and a flat plate part (15) inserted into the cylinder part. Both axial-direction ends of the flat plate part protrude in the axial direction from the cylinder part and are attached to the other of the vibration-generating part and the vibration-receiving part. Inside the cylinder part, a gap portion positioned between the cylinder part and the flat plate part is filled with a resin material, and the resin material bonds the cylinder part and the flat plate part together.

Description

防振ブッシュAnti-vibration bushing
　本発明は、防振ブッシュに関するものである。本願は２０２２年３月１４日に日本に出願された特願２０２２-０３８８６９号に基づく優先権を主張するものであり、その内容の全文をここに援用する。 The present invention relates to a vibration isolating bush. This application claims priority based on Japanese Patent Application No. 2022-038869 filed in Japan on March 14, 2022, and the entire content thereof is incorporated herein by reference.
　従来から、例えば下記特許文献１に示されるように、振動発生部および振動受部のうちのいずれか一方に取付けられる外筒、および他方に取付けられるとともに、外筒の内側に配設された内側部材と、外筒と内側部材とを連結した弾性体と、を備えた防振ブッシュが知られている。
　内側部材において、振動発生部および振動受部のうちのいずれか他方に取付けられる取付部の形状は、一般に平板状、若しくは筒状となっている。 Conventionally, as shown in Patent Document 1 below, for example, an outer cylinder is attached to either one of the vibration generating part and the vibration receiving part, and an inner cylinder is attached to the other and is disposed inside the outer cylinder. 2. Description of the Related Art A vibration-proof bushing is known that includes a member and an elastic body that connects an outer cylinder and an inner member.
In the inner member, the shape of the attachment portion attached to the other of the vibration generating portion and the vibration receiving portion is generally flat or cylindrical.
特開２０１６－１６９８２９号公報Japanese Patent Application Publication No. 2016-169829
　しかしながら、前記従来の防振ブッシュでは、内側部材をインサート品として弾性体を加硫成形するモールドを、内側部材の取付部の形状に応じて変更する必要があった。 However, in the conventional anti-vibration bushing, it was necessary to change the mold for vulcanizing the elastic body using the inner member as an insert product depending on the shape of the attachment portion of the inner member.
　この発明は、このような事情を考慮してなされたもので、内側部材の取付部の形状が異なっても、同じモールドを用いて弾性体を加硫成形することができる防振ブッシュを提供することを目的とする。 The present invention has been made in consideration of these circumstances, and provides a vibration-proof bushing in which an elastic body can be vulcanized using the same mold even if the shape of the mounting portion of the inner member is different. The purpose is to
　上記課題を解決して、このような目的を達成するために、本発明の防振ブッシュは、振動発生部および振動受部のうちのいずれか一方に取付けられる外筒、および他方に取付けられるとともに、前記外筒の内側に配設された内側部材と、前記外筒と前記内側部材とを連結した弾性体と、を備え、前記内側部材は、前記外筒の中心軸線が延びる軸方向に延びるとともに、前記弾性体が連結された筒部と、前記筒部内に挿入される平板部と、を備え、前記平板部の前記軸方向の両端部は、前記筒部から前記軸方向に突出し、かつ振動発生部および振動受部のうちのいずれか他方に取付けられ、前記筒部内において、前記平板部との間に位置する隙間部分に、樹脂材料が充填され、前記樹脂材料は、前記筒部と前記平板部とを接着する。 In order to solve the above problems and achieve such an object, the vibration isolating bush of the present invention includes an outer cylinder attached to either one of the vibration generating part and the vibration receiving part, and an outer cylinder attached to the other. , an inner member disposed inside the outer cylinder, and an elastic body connecting the outer cylinder and the inner member, the inner member extending in an axial direction in which a central axis of the outer cylinder extends. and a cylindrical portion to which the elastic body is connected, and a flat plate portion inserted into the cylindrical portion, wherein both ends of the flat plate portion in the axial direction protrude from the cylindrical portion in the axial direction, and A resin material is attached to the other of the vibration generating part and the vibration receiving part, and a gap between the cylinder part and the flat plate part is filled with a resin material. The flat plate portion is bonded to the flat plate portion.
　内側部材が、筒部および平板部を備えているので、内側部材において、振動発生部および振動受部のうちのいずれか他方に取付けられる取付部の形状が、平板状の場合は平板部を用い、筒状の場合は、平板部が挿入されていない筒部を用いることが可能になり、内側部材の取付部の形状を選択することができる。
　弾性体が、内側部材のうちの筒部に連結されているので、平板部を筒部内に挿入せず、筒部のみをインサート品として弾性体を加硫成形しておき、内側部材の取付部の形状が平板状の場合には、その後、筒部内に平板部を挿入して前記隙間部分に樹脂材料を充填し、筒部と平板部とを接着すればよく、内側部材の取付部の形状に依らず、常に筒部のみをインサート品として弾性体を加硫成形することが可能になり、同じモールドを用いることができる。 Since the inner member includes a cylindrical portion and a flat plate portion, if the shape of the attachment portion attached to the other of the vibration generating portion and the vibration receiving portion of the inner member is flat, the flat plate portion may be used. In the case of a cylindrical shape, it becomes possible to use a cylindrical portion in which no flat plate portion is inserted, and the shape of the attachment portion of the inner member can be selected.
Since the elastic body is connected to the cylindrical part of the inner member, the flat plate part is not inserted into the cylindrical part, only the cylindrical part is used as an insert product, and the elastic body is vulcanized and molded, and the mounting part of the inner member is If the shape of is a flat plate, then the flat plate part is inserted into the cylindrical part, the gap is filled with a resin material, and the cylindrical part and the flat plate part are bonded. It becomes possible to always vulcanize and mold the elastic body with only the cylindrical part as an insert product, and the same mold can be used regardless of the case.
　前記筒部の内周面に、前記平板部の表裏面を径方向に挟み込む一対の係止突起が形成されてもよい。 A pair of locking protrusions may be formed on the inner circumferential surface of the cylindrical portion to sandwich the front and back surfaces of the flat plate portion in the radial direction.
　筒部の内周面に、平板部の表裏面を径方向に挟み込む一対の係止突起が形成されているので、筒部内の前記隙間部分に溶融状態の樹脂材料を注入するとき、および使用時に、平板部が筒部に対して位置ずれするのを抑制することができる。 A pair of locking protrusions are formed on the inner circumferential surface of the cylindrical portion to sandwich the front and back surfaces of the flat plate portion in the radial direction. , it is possible to suppress misalignment of the flat plate portion with respect to the cylindrical portion.
　前記筒部の前記軸方向の両端部は、前記外筒から前記軸方向に突出してもよい。 Both ends of the cylindrical portion in the axial direction may protrude from the outer cylinder in the axial direction.
　筒部における軸方向の両端部が、外筒から軸方向に突出しているので、筒部における軸方向の両端部を、振動発生部および振動受部のうちのいずれか他方に取付けられる取付部として用いる場合に、この取付部を振動発生部および振動受部のうちのいずれか他方に容易に取付けることができる。 Since both axial ends of the cylindrical portion protrude from the outer cylinder in the axial direction, both axial ends of the cylindrical portion can be used as mounting portions to be attached to either the vibration generating portion or the vibration receiving portion. When used, this attachment part can be easily attached to either the vibration generating part or the vibration receiving part.
　この発明によれば、内側部材の取付部の形状が異なっても、同じモールドを用いて弾性体を加硫成形することができる。 According to this invention, even if the shape of the attachment portion of the inner member is different, the same mold can be used to vulcanize the elastic body.
一実施形態として示した防振ブッシュの縦断面図である。FIG. 2 is a longitudinal cross-sectional view of a vibration isolating bush shown as one embodiment. 図１のＩＩ－ＩＩ線矢視断面図である。2 is a sectional view taken along the line II-II in FIG. 1. FIG.
　以下、防振ブッシュの一実施形態を、図１および図２を参照しながら説明する。
　防振ブッシュ１は、振動発生部および振動受部のうちのいずれか一方に取付けられる外筒１１、および他方に取付けられるとともに、外筒１１の内側に配設された内側部材１２と、外筒１１と内側部材１２とを連結した弾性体１３と、を備えている。 Hereinafter, one embodiment of the anti-vibration bushing will be described with reference to FIGS. 1 and 2.
The anti-vibration bushing 1 includes an outer cylinder 11 attached to one of a vibration generating section and a vibration receiving section, an inner member 12 attached to the other and disposed inside the outer tube 11, and an outer tube. 11 and an elastic body 13 connecting the inner member 12.
　防振ブッシュ１は、例えば自動車用のサスペンションブッシュやエンジンマウント、あるいは工場に設置される産業機械のマウント等として用いられる。
　以下、外筒１１の中心軸線Ｏに沿う方向を軸方向という。また、防振ブッシュ１を軸方向から見た平面視において、中心軸線Ｏに交差する方向を径方向といい、中心軸線Ｏ回りに周回する方向を周方向という。 The anti-vibration bush 1 is used, for example, as a suspension bush or engine mount for automobiles, or as a mount for industrial machinery installed in a factory.
Hereinafter, the direction along the central axis O of the outer cylinder 11 will be referred to as the axial direction. Further, in a plan view of the anti-vibration bushing 1 from the axial direction, the direction intersecting the central axis O is called the radial direction, and the direction going around the central axis O is called the circumferential direction.
　弾性体１３は、ゴム材料で形成されている。弾性体１３は、外筒１１の内周面に加硫接着されている。
　内側部材１２は、軸方向に延びるとともに、弾性体１３が連結された筒部１４と、筒部１４内に挿入される平板部１５と、を備えている。筒部１４および平板部１５は、例えば金属材料等で形成されている。筒部１４の外周面に、弾性体１３が加硫接着されている。 The elastic body 13 is made of rubber material. The elastic body 13 is vulcanized and bonded to the inner peripheral surface of the outer cylinder 11.
The inner member 12 includes a cylindrical portion 14 that extends in the axial direction and is connected to an elastic body 13, and a flat plate portion 15 that is inserted into the cylindrical portion 14. The cylindrical portion 14 and the flat plate portion 15 are made of, for example, a metal material. The elastic body 13 is vulcanized and bonded to the outer peripheral surface of the cylindrical portion 14 .
　筒部１４は、中心軸線Ｏと同軸に配設されている。筒部１４の軸方向の両端部は、外筒１１から軸方向に突出している。筒部１４の内周面に、平板部１５の表裏面を径方向に挟み込む一対の係止突起１６が形成されている。係止突起１６は、軸方向に延びる直方体状に形成されている。係止突起１６における軸方向の両端面は、筒部１４における軸方向の両端開口縁と段差無く連なっている。一対の係止突起１６における径方向の内端面が、平板部１５の表裏面に各別に当接している。 The cylindrical portion 14 is arranged coaxially with the central axis O. Both ends of the cylindrical portion 14 in the axial direction protrude from the outer tube 11 in the axial direction. A pair of locking protrusions 16 are formed on the inner circumferential surface of the cylindrical portion 14 to sandwich the front and back surfaces of the flat plate portion 15 in the radial direction. The locking protrusion 16 is formed into a rectangular parallelepiped shape extending in the axial direction. Both end surfaces of the locking protrusion 16 in the axial direction are continuous with the opening edges of the cylindrical portion 14 at both ends in the axial direction without any difference in level. The radially inner end surfaces of the pair of locking protrusions 16 are in contact with the front and back surfaces of the flat plate portion 15, respectively.
　平板部１５の軸方向の両端部は、筒部１４から軸方向に突出し、かつ振動発生部および振動受部のうちのいずれか他方に取付けられる。平板部１５の軸方向の両端部に、振動発生部および振動受部のうちのいずれか他方に平板部１５を取付けるための装着孔１５ａが形成されている。この装着孔１５ａは、平板部１５を板厚方向に貫く貫通孔となっている。この板厚方向は、係止突起１６が、筒部１４の内周面から径方向に突出している方向と一致している。軸方向から見て、平板部１５の側面は、筒部１４の内周面に当接、若しくは近接している。軸方向から見て、平板部１５における軸方向の両端面の中心に、中心軸線Ｏが位置している。つまり、平板部１５は、中心軸線Ｏと同軸に配設されている。 Both ends of the flat plate part 15 in the axial direction protrude from the cylindrical part 14 in the axial direction, and are attached to the other of the vibration generating part and the vibration receiving part. Mounting holes 15a are formed at both ends of the flat plate part 15 in the axial direction to attach the flat plate part 15 to the other of the vibration generating part and the vibration receiving part. The mounting hole 15a is a through hole that penetrates the flat plate portion 15 in the thickness direction. This plate thickness direction coincides with the direction in which the locking protrusion 16 projects from the inner circumferential surface of the cylindrical portion 14 in the radial direction. When viewed from the axial direction, the side surface of the flat plate portion 15 is in contact with or close to the inner circumferential surface of the cylindrical portion 14 . When viewed from the axial direction, the central axis O is located at the center of both end surfaces of the flat plate portion 15 in the axial direction. That is, the flat plate portion 15 is disposed coaxially with the central axis O.
　筒部１４内において、平板部１５との間に位置する隙間部分に、樹脂材料１７が充填されている。樹脂材料１７は、筒部１４と平板部１５とを接着している。樹脂材料１７は、筒部１４内における軸方向の全長にわたって設けられている。 A resin material 17 is filled in the gap between the tubular portion 14 and the flat plate portion 15 . The resin material 17 adheres the cylindrical portion 14 and the flat plate portion 15. The resin material 17 is provided over the entire length of the cylindrical portion 14 in the axial direction.
　次に、以上のように構成された防振ブッシュ１の製造方法について説明する。 Next, a method of manufacturing the vibration isolating bush 1 configured as described above will be explained.
　まず、外筒１１および筒部１４をインサート品として、弾性体１３を加硫成形し、かつ弾性体１３を外筒１１の内周面および筒部１４の外周面に加硫接着する。
　そして、内側部材１２において、振動発生部および振動受部のうちのいずれか他方に取付けられる取付部の形状が、平板状の場合には、平板部１５を筒部１４内に挿入した状態で、筒部１４内において、平板部１５との間に位置する隙間部分に、樹脂材料１７を射出成形により充填し、樹脂材料１７により筒部１４と平板部１５とを接着する。 First, the outer cylinder 11 and the cylindrical part 14 are used as insert products, and the elastic body 13 is vulcanized and bonded to the inner circumferential surface of the outer cylinder 11 and the outer circumferential surface of the cylindrical part 14.
In the inner member 12, when the shape of the attachment part attached to the other of the vibration generating part and the vibration receiving part is a flat plate, with the flat plate part 15 inserted into the cylindrical part 14, In the cylindrical part 14 , a gap between the cylindrical part 14 and the flat plate part 15 is filled with a resin material 17 by injection molding, and the cylindrical part 14 and the flat plate part 15 are bonded together using the resin material 17 .
　以上説明したように、本実施形態による防振ブッシュ１によれば、内側部材１２が、筒部１４および平板部１５を備えているので、内側部材１２において、振動発生部および振動受部のうちのいずれか他方に取付けられる取付部の形状が、平板状の場合は平板部１５を用い、筒状の場合は、平板部１５が挿入されていない筒部１４を用いることが可能になり、内側部材１２の取付部の形状を選択することができる。 As explained above, according to the vibration isolating bush 1 according to the present embodiment, the inner member 12 includes the cylindrical portion 14 and the flat plate portion 15, so that the inner member 12 has a vibration generating portion and a vibration receiving portion. If the shape of the attachment part to be attached to the other is a flat plate, the flat plate part 15 is used, and if it is cylindrical, it is possible to use the cylindrical part 14 in which the flat plate part 15 is not inserted. The shape of the attachment portion of member 12 can be selected.
　弾性体１３が、内側部材１２のうちの筒部１４に連結されているので、平板部１５を筒部１４内に挿入せず、筒部１４のみをインサート品として弾性体１３を加硫成形しておき、内側部材１２の取付部の形状が平板状の場合には、その後、筒部１４内に平板部１５を挿入して前記隙間部分に樹脂材料１７を充填し、筒部１４と平板部１５とを接着すればよく、内側部材１２の取付部の形状に依らず、常に筒部１４のみをインサート品として弾性体１３を加硫成形することが可能になり、同じモールドを用いることができる。 Since the elastic body 13 is connected to the cylindrical part 14 of the inner member 12, the flat plate part 15 is not inserted into the cylindrical part 14, and the elastic body 13 is vulcanized and molded using only the cylindrical part 14 as an insert product. If the mounting portion of the inner member 12 has a flat plate shape, then the flat plate portion 15 is inserted into the cylindrical portion 14 and the gap is filled with resin material 17 to connect the cylindrical portion 14 and the flat plate portion. 15, it is possible to always vulcanize and mold the elastic body 13 using only the cylindrical part 14 as an insert product, regardless of the shape of the attachment part of the inner member 12, and the same mold can be used. .
　筒部１４の内周面に、平板部１５の表裏面を径方向に挟み込む一対の係止突起１６が形成されているので、筒部１４内の前記隙間部分に溶融状態の樹脂材料１７を注入するとき、および使用時に、平板部１５が筒部１４に対して位置ずれするのを抑制することができる。 Since a pair of locking protrusions 16 are formed on the inner peripheral surface of the cylindrical portion 14 to sandwich the front and back surfaces of the flat plate portion 15 in the radial direction, a molten resin material 17 is injected into the gap portion within the cylindrical portion 14. It is possible to suppress displacement of the flat plate portion 15 with respect to the cylindrical portion 14 during use and during use.
　筒部１４における軸方向の両端部が、外筒１１から軸方向に突出しているので、筒部１４における軸方向の両端部を、振動発生部および振動受部のうちのいずれか他方に取付けられる取付部として用いる場合に、この取付部を振動発生部および振動受部のうちのいずれか他方に容易に取付けることができる。 Since both axial ends of the cylindrical portion 14 protrude from the outer cylinder 11 in the axial direction, both axial ends of the cylindrical portion 14 can be attached to the other of the vibration generating portion and the vibration receiving portion. When used as an attachment part, this attachment part can be easily attached to either the vibration generating part or the vibration receiving part.
　なお、本発明の技術範囲は、前述した実施形態に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において種々の変更を加えることが可能である。 Note that the technical scope of the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention.
　例えば、係止突起１６における径方向の内端面は、平板部１５の表裏面から径方向に離れてもよい。
　筒部１４の内周面に、係止突起１６を設けなくてもよい。
　平板部１５の側面は、筒部１４の内周面から径方向に離れてもよい。
　外筒１１および筒部１４それぞれにおける軸方向の端部は、軸方向の同じ位置に位置してもよい。 For example, the radially inner end surface of the locking protrusion 16 may be separated from the front and back surfaces of the flat plate portion 15 in the radial direction.
It is not necessary to provide the locking protrusion 16 on the inner circumferential surface of the cylindrical portion 14.
The side surface of the flat plate portion 15 may be separated from the inner circumferential surface of the cylindrical portion 14 in the radial direction.
The axial ends of the outer tube 11 and the cylindrical portion 14 may be located at the same axial position.
　その他、本発明の趣旨を逸脱しない範囲で、上記した実施の形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した実施形態および変形例を適宜組み合わせてもよい。 In addition, without departing from the spirit of the present invention, the components in the embodiments described above can be replaced with well-known components as appropriate, and the embodiments and modifications described above may be combined as appropriate.
　１　防振ブッシュ
　１１　外筒
　１２　内側部材
　１３　弾性体
　１４　筒部
　１５　平板部
　１６　係止突起
　１７　樹脂材料
　Ｏ　中心軸線
  1 Anti-vibration bushing 11 Outer tube 12 Inner member 13 Elastic body 14 Cylindrical portion 15 Flat plate portion 16 Locking protrusion 17 Resin material O Center axis

Claims (3)

  1. 　振動発生部および振動受部のうちのいずれか一方に取付けられる外筒、および他方に取付けられるとともに、前記外筒の内側に配設された内側部材と、
    　前記外筒と前記内側部材とを連結した弾性体と、を備え、
    　前記内側部材は、
    　前記外筒の中心軸線が延びる軸方向に延びるとともに、前記弾性体が連結された筒部と、
    　前記筒部内に挿入される平板部と、を備え、
    　前記平板部の前記軸方向の両端部は、前記筒部から前記軸方向に突出し、かつ振動発生部および振動受部のうちのいずれか他方に取付けられ、
    　前記筒部内において、前記平板部との間に位置する隙間部分に、樹脂材料が充填され、
    　前記樹脂材料は、前記筒部と前記平板部とを接着する、防振ブッシュ。     an outer cylinder attached to either one of the vibration generating part and the vibration receiving part, and an inner member attached to the other and disposed inside the outer cylinder;
    an elastic body connecting the outer cylinder and the inner member,
    The inner member is
    a cylindrical portion extending in an axial direction in which the central axis of the outer cylinder extends and to which the elastic body is connected;
    a flat plate part inserted into the cylindrical part,
    Both ends of the flat plate part in the axial direction protrude from the cylindrical part in the axial direction and are attached to the other of the vibration generating part and the vibration receiving part,
    A resin material is filled in a gap located between the cylindrical part and the flat plate part,
    The resin material is a vibration-proof bushing that adheres the cylindrical portion and the flat plate portion.
  2. 　前記筒部の内周面に、前記平板部の表裏面を径方向に挟み込む一対の係止突起が形成されている、請求項１に記載の防振ブッシュ。 The anti-vibration bushing according to claim 1, wherein a pair of locking protrusions that radially sandwich the front and back surfaces of the flat plate portion are formed on the inner circumferential surface of the cylindrical portion.
  3. 　前記筒部の前記軸方向の両端部は、前記外筒から前記軸方向に突出している、請求項１または２に記載の防振ブッシュ。
          The vibration isolation bushing according to claim 1 or 2, wherein both ends of the cylindrical portion in the axial direction protrude from the outer cylinder in the axial direction.
PCT/JP2023/005499 2022-03-14 2023-02-16 Vibration-proof bush WO2023176294A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010101385A (en) * 2008-10-22 2010-05-06 Molten Corp Bush
JP2015178854A (en) * 2014-03-19 2015-10-08 三菱自動車工業株式会社 Bush device
JP2016169829A (en) * 2015-03-13 2016-09-23 株式会社ブリヂストン Vibration-proof device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010101385A (en) * 2008-10-22 2010-05-06 Molten Corp Bush
JP2015178854A (en) * 2014-03-19 2015-10-08 三菱自動車工業株式会社 Bush device
JP2016169829A (en) * 2015-03-13 2016-09-23 株式会社ブリヂストン Vibration-proof device

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