WO2014103194A1 - Anti-vibration connecting rod - Google Patents

Anti-vibration connecting rod Download PDF

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Publication number
WO2014103194A1
WO2014103194A1 PCT/JP2013/007197 JP2013007197W WO2014103194A1 WO 2014103194 A1 WO2014103194 A1 WO 2014103194A1 JP 2013007197 W JP2013007197 W JP 2013007197W WO 2014103194 A1 WO2014103194 A1 WO 2014103194A1
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WO
WIPO (PCT)
Prior art keywords
metal plate
vibration
inner cylinder
cylinder
connecting rod
Prior art date
Application number
PCT/JP2013/007197
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French (fr)
Japanese (ja)
Inventor
紀光 古澤
坂田　利文
Original Assignee
東洋ゴム工業株式会社
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 東洋ゴム工業株式会社 filed Critical 東洋ゴム工業株式会社
Priority to CN201380068541.1A priority Critical patent/CN104903614B/en
Publication of WO2014103194A1 publication Critical patent/WO2014103194A1/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
    • F16F1/3842—Method of assembly, production or treatment; Mounting thereof
    • F16F1/3849—Mounting brackets therefor, e.g. stamped steel brackets; Restraining links

Definitions

  • the present invention relates to an anti-vibration connecting rod that can be used as, for example, a torque rod for connecting an automobile engine to the vehicle body while isolating the vibration.
  • An anti-vibration connecting rod called a torque rod is provided between an automobile body and an engine which is a vibration generation source in order to suppress movement and vibration in the roll direction of the engine.
  • an anti-vibration connecting rod for example, a rod body having a first tube portion provided at one end portion and a second tube portion provided at the other end portion and having an axial direction orthogonal to the first tube portion;
  • a first anti-vibration bush provided in the cylinder part and a second anti-vibration bush provided in the second cylinder part are known, and the axial directions of the first anti-vibration bush and the second anti-vibration bush are orthogonal to each other.
  • the rod body is integrally formed by casting, die casting, injection molding or the like. There is a problem that the manufacturing cost becomes high.
  • the present invention has been made in consideration of the above problems, and an object of the present invention is to manufacture an anti-vibration connecting rod in which the axial directions of the first anti-vibration bush and the second anti-vibration bush are orthogonal to each other at low cost.
  • the anti-vibration connecting rod includes a first tube portion provided at one end portion and a second tube portion provided at the other end portion, and the axial direction of the first tube portion and the second tube portion.
  • a rod body that is orthogonal to the axial direction of the first inner cylinder, a first rubber-like elastic part that covers an outer peripheral part of the first inner cylinder and the first inner cylinder, and a first vibration-isolating bush provided in the first cylinder part;
  • An anti-vibration connecting rod comprising: a second inner cylinder and a second rubber-like elastic part covering an outer peripheral part of the second inner cylinder; and a second anti-vibration bush provided in the second cylinder part.
  • the rod body includes a first metal plate and a second metal plate superimposed on the first metal plate, and the first metal plate is a cylindrical first that rises from the plate surface of the first metal plate.
  • the first cylindrical plate and the second cylindrical plate are overlapped to form the first cylindrical portion and the second cylindrical portion, and the second cylindrical portion is formed by connecting the first metallic plate and the second metallic plate.
  • the first bending portion and the second bending portion are connected to each other by overlapping a plate and the second metal plate.
  • the first metal plate and the second metal plate may have the same shape.
  • the cross section in the direction perpendicular to the axis of the second inner cylinder is such that the length dimension in the overlapping direction of the first metal plate and the second metal plate is longer than the length dimension in the direction perpendicular to the overlapping direction. It may be circular.
  • the first bending portion and the second bending portion may include a pressure receiving portion that is parallel to the outer peripheral surface of the second inner cylinder at a constant interval. In this case, the pressure receiving portion is the mating surface. Further, it may be a plane that rises perpendicular to the overlapping direction of the first metal plate and the second metal plate and is parallel to the outer peripheral surface of the second inner cylinder.
  • the second cylindrical portion includes a joint portion between the first metal plate and the second metal plate extending along the axial direction, and the second rubber-like elastic portion is a position facing the joint portion. May be provided with a notch that is recessed toward the second inner cylinder.
  • the anti-vibration connecting rod in which the axial directions of the first anti-vibration bush and the second anti-vibration bush are orthogonal to each other can be manufactured at low cost.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.
  • FIG. 4 is an enlarged view of a main part of FIG. 3.
  • FIG. 3 is a perspective view of the vibration isolating connecting rod which concerns on 3rd Embodiment of this invention.
  • FIG. 8 is a plan view of the vibration proof connecting rod shown in FIG. 7.
  • FIG. 9 is a sectional view taken along line BB in FIG. It is a principal part expanded sectional view of the anti-vibration coupling rod which concerns on the example of a change of 3rd Embodiment of this invention.
  • the anti-vibration connecting rod 10 of the present embodiment is a torque rod that is assembled between an automobile body and an engine that is a vibration generation source, and suppresses movement and vibration in the roll direction of the engine.
  • the vibration isolating connecting rod 10 includes a rod body 16 having a first cylinder portion 12 and a second cylinder portion 14, and a first anti-vibration rod provided on the first cylinder portion 12. It consists of a vibration bush 18 and a second vibration isolation bush 20 provided in the second cylinder portion 14.
  • the rod body 16 includes a first cylinder part 12, a second cylinder part 14, and a connecting part 15 extending in the longitudinal direction X, and the first cylinder part 12 is provided at one end of the connecting part 15 in the longitudinal direction X.
  • the second cylinder portion 14 is provided at the other end portion in the longitudinal direction X of the connecting portion 15.
  • the first cylinder part 12 and the second cylinder part 14 provided on the rod body 16 are configured such that the axis O1 of the first cylinder part 12 and the axis O2 of the second cylinder part 14 are perpendicular to the longitudinal direction X of the rod body 16.
  • the axis O1 of the first cylinder part 12 and the axis O2 of the second cylinder part 14 are provided orthogonal to each other.
  • the first cylinder portion 12 is provided in a cylindrical shape having a rectangular shape with rounded corners.
  • a pair of rubber accommodating portions 38 that are recessed outward are provided on the inner peripheral surface of the first cylindrical portion 12.
  • the 2nd cylinder part 14 is provided in the substantially cylindrical shape.
  • the rod body 16 is formed by superposing a first metal plate 34 and a second metal plate 36 obtained by press-molding a metal plate into a predetermined shape.
  • the first metal plate 34 is provided with a rectangular first rectangular hole 42 with rounded corners at one end in the longitudinal direction X thereof. From the mating surface 35 of the first metal plate 34 and the second metal plate 36 to the outer periphery of the rod body 16 (from the second metal plate 36 superimposed on the first metal plate 34) The first cylindrical portion 12a rising to the direction Z1 is formed.
  • the first cylindrical portion 12 a is provided with a rubber accommodating portion 38 a that is recessed outward from the first cylindrical portion 12 a and opens to a mating surface with the second metal plate 36.
  • a first bending portion 14a that is curved so as to swell toward the rising direction Z1 of the first cylindrical portion 12a is formed.
  • the first metal plate 34 has a plurality of through holes 60 and convex portions 61 (four in this embodiment) around the first cylindrical portion 12a, and the longitudinal direction X across the first curved portion 14a.
  • One through hole 60 and one convex portion 61 are provided on both sides of each.
  • the second metal plate 36 is obtained by press-molding a metal plate into the same shape as the first metal plate 34. Specifically, as shown in FIGS. 1 and 3, a rectangular second rectangular hole 44 with rounded corners is formed at one end in the longitudinal direction X of the second metal plate 36. The peripheral edge of the second rectangular hole 44 rises from the mating surface 35 with the first metal plate 34 to the outside of the rod body 16 (the direction away from the first metal plate 34 superimposed on the second metal plate 36) Z2.
  • a second cylindrical portion 12b is formed.
  • the second cylindrical portion 12b is provided with a rubber accommodating portion 38b that is recessed outward from the second cylindrical portion 12b and opens to a mating surface with the first metal plate 34.
  • a second curved portion 14b is formed at the other end portion in the longitudinal direction X of the second metal plate 34 so as to bend toward the rising direction Z2 of the second cylindrical portion 12b.
  • the second metal plate 36 includes a plurality of through holes 60 and convex portions 61 (four in the present embodiment) around the second cylindrical portion 12b, and the longitudinal direction X with the first curved portion 14b interposed therebetween.
  • One through hole 60 and one convex portion 61 are provided on both sides of each.
  • the front and back are reversed, that is, the rising direction Z1 of the first cylindrical portion 12a of the first metal plate 34 and the rising direction Z2 of the second cylindrical portion 12b of the second metal plate 36.
  • the second metal plates 36 are superposed with the directions facing each other.
  • the first cylindrical portion 12a and the second cylindrical portion 12b are connected in the direction of the axis O1 to form the first cylindrical portion 12 including the rubber accommodating portion 38, and the first curved portion 14a and the second curved portion 14a.
  • the curved portion 14b is connected in the circumferential direction, and the second cylindrical portion 14 is formed. Since the second cylindrical portion 14 is formed by connecting the two curved portions 14 a and 14 b in the circumferential direction, the joint portion 31 between the first metal plate 34 and the second metal plate 36 is the second cylindrical portion 14. Are provided along the direction of the axis O2.
  • the convex portion 61 of the second metal plate 36 is inserted into the through hole 60 of the first metal plate 34, and the through hole 60 of the second metal plate 36 is inserted.
  • the convex portion 61 of the first metal plate 34 is inserted.
  • the first metal plate 34 and the second metal plate 36 are fixed by crushing the convex portion 61 inserted into the through hole 60.
  • this embodiment demonstrated the case where the convex part 61 inserted in the through-hole 60 was crushed and the 1st metal plate 34 and the 2nd metal plate 36 were fixed
  • this invention is not limited to this,
  • the periphery of at least one metal plate of the first metal plate 34 and the second metal plate 36 is folded and fixed so as to sandwich the periphery of the other metal plate, or by welding such as arc welding or projection welding.
  • the first metal plate 34 and the second metal plate 36 can be fixed by fixing, or by fixing with rivets, or by a known fixing means.
  • the first anti-vibration bush 18 covers the first inner cylinder 22 disposed in parallel with the axis O1 in the first cylinder portion 12, and covers the outer peripheral surface of the first inner cylinder 22. It is comprised from the 1st rubber-like elastic part 24 interposed between the cylinder parts 12.
  • the first inner cylinder 22 is a cylindrical member made of metal such as iron, steel, or aluminum, and is connected to either the vehicle body or the engine, for example, the vehicle body side.
  • the first rubber-like elastic portion 24 is integrally vulcanized and bonded to the outer peripheral surface of the first inner cylinder 22, and is a pair that protrudes radially outward from positions facing each other on the outer peripheral surface of the first inner cylinder 22.
  • the convex part 26 is provided (refer FIG. 2).
  • the pair of convex portions 26 are fitted into the rubber accommodating portion 38 provided in the first cylindrical portion 12 of the rod body 16 in a pre-compressed state and held in the first cylindrical portion 12. Is done.
  • the second anti-vibration bush 20 includes a second inner cylinder 28 disposed in parallel and coaxially with the axis O2 in a second cylindrical portion 14 provided in a cylindrical shape, and an outer peripheral surface of the second inner cylinder 28. It is comprised from the 2nd rubber-like elastic part 30 interposed between the cover 2nd inner cylinder 28 and the 2nd cylinder part 14.
  • FIG. 1 A first figure.
  • the second inner cylinder 28 is a cylindrical member made of metal such as iron, steel, and aluminum, and is connected to either the vehicle body or the engine, for example, the engine side.
  • the cross section in the direction perpendicular to the axis of the second inner cylinder 28 shown in FIG. 4 is a direction in which the length dimension L in the overlapping direction Z of the first metal plate 34 and the second metal plate 36 is perpendicular to the overlapping direction Z ( In this embodiment, it has an oval shape longer than the length dimension M in the longitudinal direction (X).
  • the second rubber-like elastic part 30 is integrally vulcanized and bonded to the outer peripheral surface of the second inner cylinder 28, and the second inner cylinder 28 is located at a position facing the joint part 31 provided in the second cylinder part 14.
  • a cutout portion 32 that is recessed toward the inside (that is, toward the inside of the second vibration-isolating bush 20) is provided.
  • the notch 32 provided in the second rubber-like elastic part 30 extends along the direction of the axis O2.
  • the flange part 33 which protrudes to radial direction outward is provided in the both ends of the axis
  • the distance between the pair of flange portions 33 is set to a dimension equal to the length of the second tube portion 14 in the axis O2 direction.
  • the pair of flange portions 33 Sandwiches the end surface of the second cylindrical portion 14 in the direction of the axis O2.
  • the notch 32 may not necessarily be provided at a position facing the joint part 31.
  • the convex portion 26 of the first vibration isolating bush 18 is fitted into 38b, and the second vibration isolating bush 20 is placed on the first bending portion 14b.
  • the first metal plate 34 that is reversed upside down with respect to the second metal plate 36 provided with the first anti-vibration bush 18 and the second anti-vibration bush 20 is superposed on the second metal plate 36, and the first metal plate After the fastener 61 is inserted into the through-hole 60 provided in the second metal plate 36 and the second metal plate 36, the first metal plate 34 and the second metal plate 36 are fixed by crimping the fastener 61, so that the anti-vibration connection is achieved. The assembly of the rod 10 is completed.
  • the first cylindrical portion 12 can be formed from the first cylindrical portion 12a and the second cylindrical portion 12b by overlapping the two metal plates 34 and 36.
  • the second cylindrical portion 12 that is orthogonal to the first cylindrical portion 12 can be formed from the first curved portion 14a and the second curved portion 14b. Compared with this, it can be manufactured at a low cost.
  • the two metal plates 34 and 36 constituting the rod body have the same shape, it is possible to share parts and further reduce the manufacturing cost.
  • the second cylindrical portion 14 is formed by connecting the first curved portion 14a and the second curved portion 14b in the circumferential direction. 2
  • the second vibration isolating bush 20 tends to sink into the joint portion 31 between the first metal plate 34 and the second metal plate 36.
  • the second anti-vibration bush 20 enters the joint portion 31, a force for separating the two metal plates 34 and 36 that are overlapped acts on the rod body 16.
  • the second inner cylinder 28 of the vibration isolating bush 20 has a length L in the overlapping direction Z of the first metal plate 34 and the second metal plate 36 in a direction perpendicular to the overlapping direction, that is,
  • the rod body 16 has an oval cross-sectional shape longer than the length dimension M in the longitudinal direction X.
  • the second rubber-like elastic portion 30 of the second vibration-proof bushing 20 is directed to the second inner cylinder 28 at a position facing the joint portion 31 between the first metal plate 34 and the second metal plate 36. Since the notch 32 is recessed toward the second inner cylinder 28, the second rubber-like elastic portion 30 is brought into contact with the first metal plate 34 and the second metal plate 36 when vibration in the longitudinal direction X is input to the second inner cylinder 28. It becomes difficult to dive into the joint portion 31, and the durability of the vibration-isolating connecting rod 10 can be improved.
  • the anti-vibration connecting rod 10 of the second embodiment includes a first metal plate 34 and a second metal plate in which the first bending portion 14 a and the second bending portion 14 b constituting the second cylindrical portion 14 are formed.
  • the pressure receiving part 50 is provided in the vicinity of the joint part 31 with the 36.
  • the pressure receiving portion 50 provided on the first metal plate 34 is provided with the same curvature as the curvature of the outer peripheral surface of the second inner cylinder 28 facing the second rubber-like elastic portion 30, and the second It has a shape (curved surface) that is parallel to the outer peripheral surface of the inner cylinder 28 at a constant interval.
  • the pressure receiving portion 50 provided on the second metal plate 36 is similar to the pressure receiving portion 50 of the first metal plate 34, and the curvature of the outer peripheral surface of the second inner cylinder 28 that faces the second rubber-like elastic portion 30. And has a shape (curved surface) parallel to the outer peripheral surface of the second inner cylinder 28 at a constant interval.
  • joint portions 31 are provided on both sides in the longitudinal direction X across the second vibration-proof bushing 20, and in the present embodiment, the pressure receiving portions 50 are provided in the vicinity of the joint portions 31 on both sides in the longitudinal direction X, respectively. ing.
  • the second inner cylinder 28 when vibration in the longitudinal direction X is input to the second inner cylinder 28 from an engine, a vehicle body, or the like, the second inner cylinder 28 has the second rubber-like elastic portion on the outside. It moves toward the joint portion 31 between the first metal plate 34 and the second metal plate 36 while elastically deforming 30. At that time, the pressure receiving portion 50 has a shape parallel to the outer peripheral surface of the second inner cylinder 28 at a constant interval, and vibration (stress) input to the second inner cylinder 28 is applied to the pressure receiving portion 50. Input in the normal direction. Therefore, the force to separate the first metal plate 34 and the second metal plate 36 becomes difficult to work, and the durability of the vibration proof connecting rod 10 can be improved.
  • the pressure receiving unit 50 illustrated in FIG. 5 is provided as a curved surface.
  • the pressure receiving unit 50 may be configured by a plane parallel to the outer peripheral surface of the two inner cylinders 28.
  • the first cylindrical portion 12 formed by connecting the cylindrical first cylindrical portion 12a and the second cylindrical portion 12b in the direction of the axis O1 is provided in a cylindrical shape and swells from the mating surface 35.
  • the second cylindrical portion 14 formed by connecting the first curved portion 14a and the second curved portion 14b that are curved in this manner in the circumferential direction is provided in a cylindrical shape having a rectangular opening with rounded corners. .
  • the first metal plate 34 has a circular first circular hole 42 formed at one end in the longitudinal direction X thereof.
  • a first cylindrical portion 12a rising from the mating surface 35 of the first metal plate 34 and the second metal plate 36 to the one side Z1 in the overlapping direction Z is formed at the peripheral portion of the first circular hole portion 42.
  • a first bending portion 14a that is curved so as to swell toward the rising direction Z1 of the first cylindrical portion 12a is formed.
  • the first bending portion 14a is provided with a rubber accommodating portion 38 that is recessed outward from the first bending portion 14a (the direction in which the first bending portion 14a swells).
  • the second metal plate 36 is formed by press-molding a metal plate in the same shape as the first metal plate 34, and a circular second circular hole 44 is formed at one end portion in the longitudinal direction X of the second metal plate 36.
  • a second cylindrical portion 12b that rises from the mating surface 35 to the other side Z2 in the overlapping direction Z is formed at the peripheral edge.
  • a second curved portion 14b is formed at the other end portion in the longitudinal direction X of the second metal plate 34 so as to bend toward the rising direction Z2 of the second cylindrical portion 12b.
  • the second bending portion 14b is provided with a rubber accommodating portion 38 that is recessed outward from the second bending portion 14b.
  • the first cylinder portion 12 is provided with a first vibration isolating bush 18 composed of a first inner cylinder 22 and a first rubber-like elastic portion 24 integrally vulcanized and bonded to the outer peripheral surface thereof.
  • the second cylinder portion 14 is provided with a second vibration isolating bush 20 composed of a second inner cylinder 28 and a second rubber-like elastic portion 30 integrally vulcanized and bonded to the outer peripheral surface thereof.
  • a pair of convex portions 26 provided on the second rubber-like elastic portion 30 are fitted into rubber accommodating portions 38 provided on the first metal plate 34 and the second metal plate 36. And provided inside the second cylindrical portion 14.
  • the second inner cylinder 28 of the second vibration isolating bush 20 provided in the second cylinder part 14 has a cylindrical shape at both ends in the direction of the axis O ⁇ b> 2 and a corner rounded at the center. It is columnar.
  • the first bending portion 14a and the second bending portion 14b constituting the second cylindrical portion 14 rise vertically from the mating surface 35 of the first metal plate 34 and the second metal plate 36, and the second vibration isolating bush 20 second.
  • the pressure receiving part 50 which consists of a plane parallel to the outer peripheral surface of the inner cylinder 28 is provided.
  • the second rubber-like elastic portion 30 of the second vibration isolating bush 20 is positioned at a position facing the joint portion 31 of the first metal plate 34 and the second metal plate 36.
  • a notch 32 that is recessed toward the second inner cylinder 28 may be provided.
  • the inner side of the second vibration isolating bush is located at a position facing the joint portion 31 of the first metal plate 34 and the second metal plate 36 on the second inner cylinder 28 of the second vibration isolating bush 20.

Abstract

[Problem] To manufacture an anti-vibration connecting rod, wherein the axial directions of a first anti-vibration bush and a second anti-vibration bush are mutually orthogonal, at low cost. [Solution] A first metal plate (34), which is provided with a cylinder-shaped first cylindrical section (12a) that rises from an interface (35) with a second metal plate (36) and a first curved section (14a) that curves so as the bulge out in the direction (Z1) in which the first cylindrical section (12a) rises, and the second metal plate (36), which is provided with a cylinder-shaped second cylindrical section (12b) that rises from the interface (35) with the first metal plate (34) and a second curved section (14b) that curves so as to bulge out in the direction (Z2) in which the second cylindrical section (12b) rises, are stacked. The first cylindrical section (12a) and the second cylindrical section (12b) are thereby connected to form a first cylinder section (12) provided with a first anti-vibration bush (18) and the first curved section (14a) and the second curved section (14b) are connected to form a second cylinder section (14) provided with a second anti-vibration bush (20).

Description

防振連結ロッドAnti-vibration connecting rod
　本発明は、例えば自動車のエンジンを車体に対して防振しながら連結するトルクロッド等として用いることのできる防振連結ロッドに関するものである。 The present invention relates to an anti-vibration connecting rod that can be used as, for example, a torque rod for connecting an automobile engine to the vehicle body while isolating the vibration.
　自動車の車体と振動発生源であるエンジンとの間には、エンジンのロール方向の動きや振動を抑制するためにトルクロッドと称される防振連結ロッドが設けられている。 An anti-vibration connecting rod called a torque rod is provided between an automobile body and an engine which is a vibration generation source in order to suppress movement and vibration in the roll direction of the engine.
　かかる防振連結ロッドとしては、例えば、一端部に設けられた第１筒部と他端部に設けられ軸方向が第１筒部と直交する第２筒部とを有するロッド本体と、第１筒部内に設けられる第１防振ブッシュと、第２筒部内に設けられる第２防振ブッシュとを備え、第１防振ブッシュ及び第２防振ブッシュの軸方向が互いに直交するものが知られている（下記特許文献１参照）。 As such an anti-vibration connecting rod, for example, a rod body having a first tube portion provided at one end portion and a second tube portion provided at the other end portion and having an axial direction orthogonal to the first tube portion; A first anti-vibration bush provided in the cylinder part and a second anti-vibration bush provided in the second cylinder part are known, and the axial directions of the first anti-vibration bush and the second anti-vibration bush are orthogonal to each other. (See Patent Document 1 below).
　従来、上記のような第１筒部の軸方向と第２筒部の軸方向とが直交する防振連結ロッドでは、鋳造やダイキャストや射出成形等でロッド本体を一体に成形しているため、製造コストが高くなるという問題がある。 Conventionally, in the vibration proof connecting rod in which the axial direction of the first cylinder part and the axial direction of the second cylinder part are orthogonal to each other, the rod body is integrally formed by casting, die casting, injection molding or the like. There is a problem that the manufacturing cost becomes high.
特開２００５－２６５１２２号公報JP 2005-265122 A
　本発明は上記問題を考慮してなされたものであり、第１防振ブッシュ及び第２防振ブッシュの軸方向が互いに直交する防振連結ロッドをコスト安価に製造することを目的とする。 The present invention has been made in consideration of the above problems, and an object of the present invention is to manufacture an anti-vibration connecting rod in which the axial directions of the first anti-vibration bush and the second anti-vibration bush are orthogonal to each other at low cost.
　本発明に係る防振連結ロッドは、一端部に設けられた第１筒部と他端部に設けられた第２筒部とを備え、前記第１筒部の軸方向と前記第２筒部の軸方向とが直交するロッド本体と、第１内筒と前記第１内筒の外周部を覆う第１ゴム状弾性部とを備え、前記第１筒部内に設けられる第１防振ブッシュと、第２内筒と前記第２内筒の外周部を覆う第２ゴム状弾性部とを備え、前記第２筒部内に設けられる第２防振ブッシュと、を備える防振連結ロッドにおいて、前記ロッド本体は、第１金属板と、前記第１金属板に重ね合わせられた第２金属板とを備え、前記第１金属板は、前記第１金属板の板面から立ち上がる筒状の第１筒状部と、前記第１筒状部の立ち上がる方向に向けて膨らむように湾曲する第１湾曲部とを備え、前記第２金属板は、前記第２金属板の板面から立ち上がる筒状の第２筒状部と、前記第２筒状部の立ち上がる方向に向けて膨らむように湾曲する第２湾曲部とを備え、前記第１筒部は、前記第１金属板と前記第２金属板とを重ね合わせることで前記第１筒状部と前記第２筒状部とを連結して形成され、前記第２筒部は、前記第１金属板と前記第２金属板とを重ね合わせることで前記第１湾曲部と前記第２湾曲部とを連結して形成されることを特徴とする。 The anti-vibration connecting rod according to the present invention includes a first tube portion provided at one end portion and a second tube portion provided at the other end portion, and the axial direction of the first tube portion and the second tube portion. A rod body that is orthogonal to the axial direction of the first inner cylinder, a first rubber-like elastic part that covers an outer peripheral part of the first inner cylinder and the first inner cylinder, and a first vibration-isolating bush provided in the first cylinder part; An anti-vibration connecting rod comprising: a second inner cylinder and a second rubber-like elastic part covering an outer peripheral part of the second inner cylinder; and a second anti-vibration bush provided in the second cylinder part. The rod body includes a first metal plate and a second metal plate superimposed on the first metal plate, and the first metal plate is a cylindrical first that rises from the plate surface of the first metal plate. A cylindrical portion and a first curved portion that curves so as to swell toward the rising direction of the first cylindrical portion, and the second metal plate includes a front A cylindrical second cylindrical portion that rises from the plate surface of the second metal plate, and a second curved portion that curves so as to swell toward the rising direction of the second cylindrical portion, and the first cylindrical portion is The first cylindrical plate and the second cylindrical plate are overlapped to form the first cylindrical portion and the second cylindrical portion, and the second cylindrical portion is formed by connecting the first metallic plate and the second metallic plate. The first bending portion and the second bending portion are connected to each other by overlapping a plate and the second metal plate.
　本発明の好ましい態様において、第１金属板と前記第２金属板とが同一形状であってもよい。また、第２内筒の軸直角方向断面は、前記第１金属板と前記第２金属板との重ね合わせ方向の長さ寸法が、前記重ね合わせ方向に垂直な方向の長さ寸法より長い長円状であってもよい。また、前記第１湾曲部及び第２湾曲部は、前記第２内筒の外周面と一定の間隔を保って並行する受圧部を備えてもよく、この場合、前記受圧部は、前記合わせ面より前記第１金属板と前記第２金属板との重ね合わせ方向に対して垂直に立ち上がり、前記第２内筒の外周面に対して平行な平面であってもよい。また、前記第２筒部は、その軸方向に沿って延びる前記第１金属板と前記第２金属板との接合部を備え、前記第２ゴム状弾性部は、前記接合部と対向する位置に前記第２内筒へ向けて陥没する切欠部を備えてもよい。 In a preferred embodiment of the present invention, the first metal plate and the second metal plate may have the same shape. Further, the cross section in the direction perpendicular to the axis of the second inner cylinder is such that the length dimension in the overlapping direction of the first metal plate and the second metal plate is longer than the length dimension in the direction perpendicular to the overlapping direction. It may be circular. The first bending portion and the second bending portion may include a pressure receiving portion that is parallel to the outer peripheral surface of the second inner cylinder at a constant interval. In this case, the pressure receiving portion is the mating surface. Further, it may be a plane that rises perpendicular to the overlapping direction of the first metal plate and the second metal plate and is parallel to the outer peripheral surface of the second inner cylinder. Further, the second cylindrical portion includes a joint portion between the first metal plate and the second metal plate extending along the axial direction, and the second rubber-like elastic portion is a position facing the joint portion. May be provided with a notch that is recessed toward the second inner cylinder.
　本発明では、第１防振ブッシュ及び第２防振ブッシュの軸方向が互いに直交する防振連結ロッドをコスト安価に製造することができる。 In the present invention, the anti-vibration connecting rod in which the axial directions of the first anti-vibration bush and the second anti-vibration bush are orthogonal to each other can be manufactured at low cost.
本発明の第１実施形態に係る防振連結ロッドの斜視図である。It is a perspective view of the vibration isolating connecting rod which concerns on 1st Embodiment of this invention. 図１に示す防振連結ロッドの平面図である。It is a top view of the vibration isolating connecting rod shown in FIG. 図２のＡ－Ａ断面図である。FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 図３の要部を拡大図である。FIG. 4 is an enlarged view of a main part of FIG. 3. 本発明の第２実施形態に係る防振連結ロッドの要部拡大断面図である。It is a principal part expanded sectional view of the vibration isolating connecting rod which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態の変更例に係る防振連結ロッドの要部拡大断面図である。It is a principal part expanded sectional view of the anti-vibration coupling rod which concerns on the example of a change of 2nd Embodiment of this invention. 本発明の第３実施形態に係る防振連結ロッドの斜視図である。It is a perspective view of the vibration isolating connecting rod which concerns on 3rd Embodiment of this invention. 図７に示す防振連結ロッドの平面図である。FIG. 8 is a plan view of the vibration proof connecting rod shown in FIG. 7. 図８のＢ－Ｂ断面図である。FIG. 9 is a sectional view taken along line BB in FIG. 本発明の第３実施形態の変更例に係る防振連結ロッドの要部拡大断面図である。It is a principal part expanded sectional view of the anti-vibration coupling rod which concerns on the example of a change of 3rd Embodiment of this invention.
（第１実施形態）
　以下、本発明の第１実施形態について、図面を参照して説明する。 (First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
　本実施形態の防振連結ロッド１０は、自動車の車体と振動発生源であるエンジンとの間に組付けられて、エンジンのロール方向の動きや振動を抑制するトルクロッドである。 The anti-vibration connecting rod 10 of the present embodiment is a torque rod that is assembled between an automobile body and an engine that is a vibration generation source, and suppresses movement and vibration in the roll direction of the engine.
　この防振連結ロッド１０は、図１～図３に示すように、第１筒部１２と第２筒部１４とを備えたロッド本体１６と、第１筒部１２に設けられた第１防振ブッシュ１８と、第２筒部１４内に設けられた第２防振ブッシュ２０とからなる。 As shown in FIGS. 1 to 3, the vibration isolating connecting rod 10 includes a rod body 16 having a first cylinder portion 12 and a second cylinder portion 14, and a first anti-vibration rod provided on the first cylinder portion 12. It consists of a vibration bush 18 and a second vibration isolation bush 20 provided in the second cylinder portion 14.
　ロッド本体１６は、第１筒部１２と、第２筒部１４と、長手方向Ｘの延びる連結部１５とを備え、第１筒部１２が連結部１５の長手方向Ｘの一端部に設けられ、第２筒部１４が連結部１５の長手方向Ｘの他端部に設けられている。 The rod body 16 includes a first cylinder part 12, a second cylinder part 14, and a connecting part 15 extending in the longitudinal direction X, and the first cylinder part 12 is provided at one end of the connecting part 15 in the longitudinal direction X. The second cylinder portion 14 is provided at the other end portion in the longitudinal direction X of the connecting portion 15.
　ロッド本体１６に設けられた第１筒部１２と第２筒部１４は、第１筒部１２の軸Ｏ１及び第２筒部１４の軸Ｏ２がロッド本体１６の長手方向Ｘに対して垂直に設けられるとともに、第１筒部１２の軸Ｏ１と第２筒部１４の軸Ｏ２とが互いに直交して設けられている。 The first cylinder part 12 and the second cylinder part 14 provided on the rod body 16 are configured such that the axis O1 of the first cylinder part 12 and the axis O2 of the second cylinder part 14 are perpendicular to the longitudinal direction X of the rod body 16. In addition to being provided, the axis O1 of the first cylinder part 12 and the axis O2 of the second cylinder part 14 are provided orthogonal to each other.
　第１筒部１２は、開口部が角を丸めた矩形状をなした筒形状に設けられている。第１筒部１２の内周面には外方へ陥没する一対のゴム収容部３８が設けられている。第２筒部１４は、略円筒状に設けられている。 The first cylinder portion 12 is provided in a cylindrical shape having a rectangular shape with rounded corners. A pair of rubber accommodating portions 38 that are recessed outward are provided on the inner peripheral surface of the first cylindrical portion 12. The 2nd cylinder part 14 is provided in the substantially cylindrical shape.
　ロッド本体１６は、金属板を所定形状にプレス成形した第１金属板３４及び第２金属板３６を重ね合わせることで形成されている。 The rod body 16 is formed by superposing a first metal plate 34 and a second metal plate 36 obtained by press-molding a metal plate into a predetermined shape.
　詳細には、図１及び図３に示すように、第１金属板３４は、その長手方向Ｘの一端部に、角を丸めた矩形状の第１矩形孔部４２が穿設されている。第１矩形孔部４２の周縁部には、第１金属板３４と第２金属板３６との合わせ面３５からロッド本体１６の外方（１金属板３４に重ね合わせた第２金属板３６から離れる方向）Ｚ１へ立ち上がる第１筒状部１２ａが形成されている。第１筒状部１２ａには、第１筒状部１２ａの外方に陥没するとともに第２金属板３６との合わせ面へ開口するゴム収容部分３８ａが設けられている。第１金属板３４の長手方向Ｘの他端部には、第１筒状部１２ａの立ち上がる方向Ｚ１に向けて膨らむように湾曲する第１湾曲部１４ａが形成されている。 Specifically, as shown in FIGS. 1 and 3, the first metal plate 34 is provided with a rectangular first rectangular hole 42 with rounded corners at one end in the longitudinal direction X thereof. From the mating surface 35 of the first metal plate 34 and the second metal plate 36 to the outer periphery of the rod body 16 (from the second metal plate 36 superimposed on the first metal plate 34) The first cylindrical portion 12a rising to the direction Z1 is formed. The first cylindrical portion 12 a is provided with a rubber accommodating portion 38 a that is recessed outward from the first cylindrical portion 12 a and opens to a mating surface with the second metal plate 36. At the other end of the first metal plate 34 in the longitudinal direction X, a first bending portion 14a that is curved so as to swell toward the rising direction Z1 of the first cylindrical portion 12a is formed.
　第１金属板３４は、第１筒状部１２ａの周囲に貫通孔６０と凸部６１とがそれぞれ複数個（本実施形態では４個）設けられ、第１湾曲部１４ａを挟んで長手方向Ｘの両側に貫通孔６０と凸部６１とがそれぞれ１個ずつ設けられている。 The first metal plate 34 has a plurality of through holes 60 and convex portions 61 (four in this embodiment) around the first cylindrical portion 12a, and the longitudinal direction X across the first curved portion 14a. One through hole 60 and one convex portion 61 are provided on both sides of each.
　また、第２金属板３６は、金属板を第１金属板３４と同一形状にプレス成形したものである。具体的には、図１及び図３に示すように、第２金属板３６の長手方向Ｘの一端部には、角を丸めた矩形状の第２矩形孔部４４が穿設されている。第２矩形孔部４４の周縁部には第１金属板３４との合わせ面３５からロッド本体１６の外方（第２金属板３６に重ね合わせた第１金属板３４から離れる方向）Ｚ２へ立ち上がる第２筒状部１２ｂが形成されている。第２筒状部１２ｂには、第２筒状部１２ｂの外方に陥没するとともに第１金属板３４との合わせ面へ開口するゴム収容部分３８ｂが設けられている。第２金属板３４の長手方向Ｘの他端部には、第２筒状部１２ｂの立ち上がる方向Ｚ２に向けて膨らむように湾曲する第２湾曲部１４ｂが形成されている。 Further, the second metal plate 36 is obtained by press-molding a metal plate into the same shape as the first metal plate 34. Specifically, as shown in FIGS. 1 and 3, a rectangular second rectangular hole 44 with rounded corners is formed at one end in the longitudinal direction X of the second metal plate 36. The peripheral edge of the second rectangular hole 44 rises from the mating surface 35 with the first metal plate 34 to the outside of the rod body 16 (the direction away from the first metal plate 34 superimposed on the second metal plate 36) Z2. A second cylindrical portion 12b is formed. The second cylindrical portion 12b is provided with a rubber accommodating portion 38b that is recessed outward from the second cylindrical portion 12b and opens to a mating surface with the first metal plate 34. A second curved portion 14b is formed at the other end portion in the longitudinal direction X of the second metal plate 34 so as to bend toward the rising direction Z2 of the second cylindrical portion 12b.
　第２金属板３６は、第２筒状部１２ｂの周囲に貫通孔６０と凸部６１とがそれぞれ複数個（本実施形態では４個）設けられ、第１湾曲部１４ｂを挟んで長手方向Ｘの両側に貫通孔６０と凸部６１とがそれぞれ１個ずつ設けられている。 The second metal plate 36 includes a plurality of through holes 60 and convex portions 61 (four in the present embodiment) around the second cylindrical portion 12b, and the longitudinal direction X with the first curved portion 14b interposed therebetween. One through hole 60 and one convex portion 61 are provided on both sides of each.
　第１金属板３４には、表裏を反転させて、つまり、第１金属板３４の第１筒状部１２ａの立ち上がる方向Ｚ１と第２金属板３６の第２筒状部１２ｂの立ち上がる方向Ｚ２とを互いに反対方向に向けて、第２金属板３６が重ね合わせられる。これにより、第１筒状部１２ａ及び第２筒状部１２ｂが軸Ｏ１方向に連結されて、ゴム収容部３８を備える第１筒部１２が形成されるとともに、第１湾曲部１４ａ及び第２湾曲部１４ｂが周方向に連結され、第２筒部１４が形成される。第２筒部１４は、２つの湾曲部１４ａ、１４ｂを周方向に連結して形成されているため、第１金属板３４と第２金属板３６との接合部３１が、第２筒部１４の軸Ｏ２方向に沿って設けられている。 In the first metal plate 34, the front and back are reversed, that is, the rising direction Z1 of the first cylindrical portion 12a of the first metal plate 34 and the rising direction Z2 of the second cylindrical portion 12b of the second metal plate 36. The second metal plates 36 are superposed with the directions facing each other. Thereby, the first cylindrical portion 12a and the second cylindrical portion 12b are connected in the direction of the axis O1 to form the first cylindrical portion 12 including the rubber accommodating portion 38, and the first curved portion 14a and the second curved portion 14a. The curved portion 14b is connected in the circumferential direction, and the second cylindrical portion 14 is formed. Since the second cylindrical portion 14 is formed by connecting the two curved portions 14 a and 14 b in the circumferential direction, the joint portion 31 between the first metal plate 34 and the second metal plate 36 is the second cylindrical portion 14. Are provided along the direction of the axis O2.
　重ね合わせられた第１金属板３４及び第２金属板３６は、第１金属板３４の貫通孔６０に第２金属板３６の凸部６１が挿入され、第２金属板３６の貫通孔６０に第１金属板３４の凸部６１が挿入される。第１金属板３４及び第２金属板３６は、貫通孔６０に挿入された凸部６１を潰して固定される。なお、本実施形態では、貫通孔６０に挿入された凸部６１を潰して第１金属板３４及び第２金属板３６を固定する場合について説明したが、本発明はこれに限定されず、例えば、第１金属板３４及び第２金属板３６の少なくとも一方の金属板の周縁部を折り返して他方の金属板の周縁部を挟持するようにかしめ固定したり、アーク溶接やプロジェクション溶接等の溶接により固定したり、あるいは、リベット締結により固定したり、公知の固定手段により第１金属板３４及び第２金属板３６を固定することができる。 In the superimposed first metal plate 34 and second metal plate 36, the convex portion 61 of the second metal plate 36 is inserted into the through hole 60 of the first metal plate 34, and the through hole 60 of the second metal plate 36 is inserted. The convex portion 61 of the first metal plate 34 is inserted. The first metal plate 34 and the second metal plate 36 are fixed by crushing the convex portion 61 inserted into the through hole 60. In addition, although this embodiment demonstrated the case where the convex part 61 inserted in the through-hole 60 was crushed and the 1st metal plate 34 and the 2nd metal plate 36 were fixed, this invention is not limited to this, For example, The periphery of at least one metal plate of the first metal plate 34 and the second metal plate 36 is folded and fixed so as to sandwich the periphery of the other metal plate, or by welding such as arc welding or projection welding. The first metal plate 34 and the second metal plate 36 can be fixed by fixing, or by fixing with rivets, or by a known fixing means.
　第１防振ブッシュ１８は、第１筒部１２内に軸Ｏ１に対して平行に配された第１内筒２２と、第１内筒２２の外周面を覆い第１内筒２２と第１筒部１２の間に介設された第１ゴム状弾性部２４とから構成される。 The first anti-vibration bush 18 covers the first inner cylinder 22 disposed in parallel with the axis O1 in the first cylinder portion 12, and covers the outer peripheral surface of the first inner cylinder 22. It is comprised from the 1st rubber-like elastic part 24 interposed between the cylinder parts 12. FIG.
　第１内筒２２は、鉄、鋼やアルミニウムなどの金属製の筒状の部材であり、車体とエンジンのいずれか一方、例えば車体側に連結される。第１ゴム状弾性部２４は、第１内筒２２の外周面に一体に加硫接着されたもので、第１内筒２２の外周面における互いに対向する位置から径方向外方に突出する一対の凸部２６を備える（図２参照）。 The first inner cylinder 22 is a cylindrical member made of metal such as iron, steel, or aluminum, and is connected to either the vehicle body or the engine, for example, the vehicle body side. The first rubber-like elastic portion 24 is integrally vulcanized and bonded to the outer peripheral surface of the first inner cylinder 22, and is a pair that protrudes radially outward from positions facing each other on the outer peripheral surface of the first inner cylinder 22. The convex part 26 is provided (refer FIG. 2).
　このような第１防振ブッシュ１８は、一対の凸部２６が、ロッド本体１６の第１筒部１２に設けられたゴム収容部３８に予圧縮状態で嵌り込み、第１筒部１２に保持される。 In such a first anti-vibration bush 18, the pair of convex portions 26 are fitted into the rubber accommodating portion 38 provided in the first cylindrical portion 12 of the rod body 16 in a pre-compressed state and held in the first cylindrical portion 12. Is done.
　第２防振ブッシュ２０は、筒状に設けられた第２筒部１４内に軸Ｏ２に対して平行かつ同軸状に配された第２内筒２８と、第２内筒２８の外周面を覆い第２内筒２８と第２筒部１４の間に介設された第２ゴム状弾性部３０とから構成される。 The second anti-vibration bush 20 includes a second inner cylinder 28 disposed in parallel and coaxially with the axis O2 in a second cylindrical portion 14 provided in a cylindrical shape, and an outer peripheral surface of the second inner cylinder 28. It is comprised from the 2nd rubber-like elastic part 30 interposed between the cover 2nd inner cylinder 28 and the 2nd cylinder part 14. FIG.
　第２内筒２８は、鉄、鋼やアルミニウムなどの金属製の筒状の部材であり、車体とエンジンのいずれか一方、例えばエンジン側に連結される。 The second inner cylinder 28 is a cylindrical member made of metal such as iron, steel, and aluminum, and is connected to either the vehicle body or the engine, for example, the engine side.
　図４に示す第２内筒２８の軸直角方向の断面は、第１金属板３４と第２金属板３６との重ね合わせ方向Ｚの長さ寸法Ｌが、重ね合わせ方向Ｚに垂直な方向（本実施形態では長手方向）Ｘの長さ寸法Ｍより長い長円状をなしている。 The cross section in the direction perpendicular to the axis of the second inner cylinder 28 shown in FIG. 4 is a direction in which the length dimension L in the overlapping direction Z of the first metal plate 34 and the second metal plate 36 is perpendicular to the overlapping direction Z ( In this embodiment, it has an oval shape longer than the length dimension M in the longitudinal direction (X).
　第２ゴム状弾性部３０は、第２内筒２８の外周面に一体に加硫接着されたもので、第２筒部１４に設けられた接合部３１に対向する位置に第２内筒２８へ向けて（つまり、第２防振ブッシュ２０の内方へ向けて）陥没する切欠部３２を備える。第２ゴム状弾性部３０に設けられた切欠部３２は、軸Ｏ２方向に沿って延びている。また、図２に示すように、第２ゴム状弾性部３０の軸Ｏ２方向の両端部には、径方向外方へ突出するフランジ部３３が設けられている。一対のフランジ部３３の間隔は、第２筒部１４の軸Ｏ２方向の長さと等しい寸法に設定されており、第２筒部１４内に第２防振ブッシュ２０を設けると一対のフランジ部３３が第２筒部１４の軸Ｏ２方向の端面を挟持する。なお、本実施形態では、第２ゴム状弾性部３０に切欠部３２を設ける場合について説明するが、接合部３１に対向する位置に切欠部３２を必ずしも設けなくてもよい。 The second rubber-like elastic part 30 is integrally vulcanized and bonded to the outer peripheral surface of the second inner cylinder 28, and the second inner cylinder 28 is located at a position facing the joint part 31 provided in the second cylinder part 14. A cutout portion 32 that is recessed toward the inside (that is, toward the inside of the second vibration-isolating bush 20) is provided. The notch 32 provided in the second rubber-like elastic part 30 extends along the direction of the axis O2. Moreover, as shown in FIG. 2, the flange part 33 which protrudes to radial direction outward is provided in the both ends of the axis | shaft O2 direction of the 2nd rubber-like elastic part 30. As shown in FIG. The distance between the pair of flange portions 33 is set to a dimension equal to the length of the second tube portion 14 in the axis O2 direction. When the second vibration isolating bush 20 is provided in the second tube portion 14, the pair of flange portions 33. Sandwiches the end surface of the second cylindrical portion 14 in the direction of the axis O2. In the present embodiment, the case where the second rubber-like elastic part 30 is provided with the notch 32 will be described. However, the notch 32 may not necessarily be provided at a position facing the joint part 31.
　防振連結ロッド１０を組み立てるには、まず、第１金属板３４及び第２金属板３６のいずれか一方（例えば、第２金属板３６）に設けられた第２筒状部１２ｂのゴム収容部分３８ｂに第１防振ブッシュ１８の凸部２６を嵌め入れるとともに、第１湾曲部１４ｂに第２防振ブッシュ２０を載置する。 In order to assemble the anti-vibration connecting rod 10, first, the rubber accommodating portion of the second cylindrical portion 12b provided on one of the first metal plate 34 and the second metal plate 36 (for example, the second metal plate 36). The convex portion 26 of the first vibration isolating bush 18 is fitted into 38b, and the second vibration isolating bush 20 is placed on the first bending portion 14b.
　次に、第１防振ブッシュ１８及び第２防振ブッシュ２０を設けた第２金属板３６に対して表裏反転させた第１金属板３４を第２金属板３６に重ね合わせ、第１金属板３４及び第２金属板３６に設けられた貫通孔６０に締結具６１を挿通した後、締結具６１をかしめて第１金属板３４と第２金属板３６とを固定することで、防振連結ロッド１０の組み立てを完了する。 Next, the first metal plate 34 that is reversed upside down with respect to the second metal plate 36 provided with the first anti-vibration bush 18 and the second anti-vibration bush 20 is superposed on the second metal plate 36, and the first metal plate After the fastener 61 is inserted into the through-hole 60 provided in the second metal plate 36 and the second metal plate 36, the first metal plate 34 and the second metal plate 36 are fixed by crimping the fastener 61, so that the anti-vibration connection is achieved. The assembly of the rod 10 is completed.
　以上のような本実施形態では、２枚の金属板３４，３６とを重ね合わせることで、第１筒状部１２ａと第２筒状部１２ｂとから第１筒部１２を形成することができ、第１湾曲部１４ａと第２湾曲部１４ｂとから第１筒部１２に直交する第２筒部１２を形成することができ、鋳造やダイキャストや射出成形等でロッド本体を形成する場合に比べてコスト安価に製造することができる。 In the present embodiment as described above, the first cylindrical portion 12 can be formed from the first cylindrical portion 12a and the second cylindrical portion 12b by overlapping the two metal plates 34 and 36. In the case of forming the rod main body by casting, die casting, injection molding or the like, the second cylindrical portion 12 that is orthogonal to the first cylindrical portion 12 can be formed from the first curved portion 14a and the second curved portion 14b. Compared with this, it can be manufactured at a low cost.
　また、ロッド本体を構成する２枚の金属板３４，３６が同一形状であるため、部品の共通化を図り製造コストをより一層抑えることができる。 Also, since the two metal plates 34 and 36 constituting the rod body have the same shape, it is possible to share parts and further reduce the manufacturing cost.
　また、本実施形態の防振連結ロッド１０では、第２筒部１４が第１湾曲部１４ａと第２湾曲部１４ｂとを周方向に連結して形成されているため、エンジンや車体等から第２内筒２８に長手方向Ｘの振動が入力されると、第２防振ブッシュ２０が第１金属板３４と第２金属板３６との接合部３１に潜り込もうとする。第２防振ブッシュ２０が接合部３１に潜り込むと、重ね合わせられた２枚の金属板３４、３６を引き離そうとする力がロッド本体１６に対して作用する。本実施形態において防振ブッシュ２０の第２内筒２８は、第１金属板３４と第２金属板３６との重ね合わせ方向Ｚの長さ寸法Ｌが、重ね合わせ方向に垂直な方向、つまり、ロッド本体１６の長手方向Ｘの長さ寸法Ｍより長い長円状の断面形状をなしている。これにより、第２内筒２８に長手方向Ｘの振動が入力されても第２防振ブッシュ２０が第１金属板３４と第２金属板３６との接合部３１に潜り込みにくく、２枚の金属板３４、３６に対して引き離そうとする力が作用しにくくなる。その結果、防振連結ロッド１０の耐久性を向上させることができる。 Further, in the vibration proof connecting rod 10 of the present embodiment, the second cylindrical portion 14 is formed by connecting the first curved portion 14a and the second curved portion 14b in the circumferential direction. 2 When vibration in the longitudinal direction X is input to the inner cylinder 28, the second vibration isolating bush 20 tends to sink into the joint portion 31 between the first metal plate 34 and the second metal plate 36. When the second anti-vibration bush 20 enters the joint portion 31, a force for separating the two metal plates 34 and 36 that are overlapped acts on the rod body 16. In the present embodiment, the second inner cylinder 28 of the vibration isolating bush 20 has a length L in the overlapping direction Z of the first metal plate 34 and the second metal plate 36 in a direction perpendicular to the overlapping direction, that is, The rod body 16 has an oval cross-sectional shape longer than the length dimension M in the longitudinal direction X. As a result, even if vibration in the longitudinal direction X is input to the second inner cylinder 28, the second vibration isolating bush 20 is unlikely to enter the joint portion 31 between the first metal plate 34 and the second metal plate 36, and the two metals It becomes difficult for the force to be separated from the plates 34 and 36 to act. As a result, the durability of the vibration proof connecting rod 10 can be improved.
　しかも、本実施形態では、第２防振ブッシュ２０の第２ゴム状弾性部３０が、第１金属板３４と第２金属板３６との接合部３１に対向する位置に第２内筒２８へ向けて陥没する切欠部３２を備えるため、第２内筒２８に長手方向Ｘの振動が入力された際に、第２ゴム状弾性部３０が第１金属板３４と第２金属板３６との接合部３１に潜り込みにくくなり、防振連結ロッド１０の耐久性を向上させることができる。 Moreover, in the present embodiment, the second rubber-like elastic portion 30 of the second vibration-proof bushing 20 is directed to the second inner cylinder 28 at a position facing the joint portion 31 between the first metal plate 34 and the second metal plate 36. Since the notch 32 is recessed toward the second inner cylinder 28, the second rubber-like elastic portion 30 is brought into contact with the first metal plate 34 and the second metal plate 36 when vibration in the longitudinal direction X is input to the second inner cylinder 28. It becomes difficult to dive into the joint portion 31, and the durability of the vibration-isolating connecting rod 10 can be improved.
（第２実施形態）
　次に、第２実施形態について、図５を参照して説明する。なお、上記した第１実施形態と同一又は対応する構成には同一符号を付し、詳細な説明を省略する。 (Second Embodiment)
Next, a second embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the structure which is the same as that of above-described 1st Embodiment, or corresponding description is abbreviate | omitted.
　第２実施形態の防振連結ロッド１０は、図５に示すように、第２筒部１４を構成する第１湾曲部１４ａ及び第２湾曲部１４ｂが、第１金属板３４と第２金属板３６との接合部３１の近傍に受圧部５０を備える。 As shown in FIG. 5, the anti-vibration connecting rod 10 of the second embodiment includes a first metal plate 34 and a second metal plate in which the first bending portion 14 a and the second bending portion 14 b constituting the second cylindrical portion 14 are formed. The pressure receiving part 50 is provided in the vicinity of the joint part 31 with the 36.
　具体的には、第１金属板３４に設けられた受圧部５０は、第２ゴム状弾性部３０を挟んで対向する第２内筒２８の外周面の曲率と同じ曲率に設けられ、第２内筒２８の外周面と一定の間隔を保って並行する形状（曲面）となっている。 Specifically, the pressure receiving portion 50 provided on the first metal plate 34 is provided with the same curvature as the curvature of the outer peripheral surface of the second inner cylinder 28 facing the second rubber-like elastic portion 30, and the second It has a shape (curved surface) that is parallel to the outer peripheral surface of the inner cylinder 28 at a constant interval.
　また、第２金属板３６に設けられた受圧部５０は、第１金属板３４の受圧部５０と同様、第２ゴム状弾性部３０を挟んで対向する第２内筒２８の外周面の曲率と同じ曲率に設けられ、第２内筒２８の外周面と一定の間隔を保って並行する形状（曲面）となっている。 Further, the pressure receiving portion 50 provided on the second metal plate 36 is similar to the pressure receiving portion 50 of the first metal plate 34, and the curvature of the outer peripheral surface of the second inner cylinder 28 that faces the second rubber-like elastic portion 30. And has a shape (curved surface) parallel to the outer peripheral surface of the second inner cylinder 28 at a constant interval.
　なお、第２防振ブッシュ２０を挟んで長手方向Ｘの両側に接合部３１が設けられており、本実施形態では、長手方向Ｘの両側の接合部３１の近傍にそれぞれ受圧部５０が設けられている。 Note that the joint portions 31 are provided on both sides in the longitudinal direction X across the second vibration-proof bushing 20, and in the present embodiment, the pressure receiving portions 50 are provided in the vicinity of the joint portions 31 on both sides in the longitudinal direction X, respectively. ing.
　このような本実施形態の防振連結ロッド１０では、エンジンや車体等から第２内筒２８に長手方向Ｘの振動が入力されると、第２内筒２８が外側の第２ゴム状弾性部３０を弾性変形させながら第１金属板３４と第２金属板３６との接合部３１に向けて移動する。その際、受圧部５０が第２内筒２８の外周面と一定の間隔を保って並行する形状をなしており、第２内筒２８に入力された振動（応力）が受圧部５０に対して法線方向に入力される。そのため、第１金属板３４及び第２金属板３６を引き離そうとする力が働きにくくなり、防振連結ロッド１０の耐久性を向上させることができる。 In the vibration-isolating connecting rod 10 of this embodiment, when vibration in the longitudinal direction X is input to the second inner cylinder 28 from an engine, a vehicle body, or the like, the second inner cylinder 28 has the second rubber-like elastic portion on the outside. It moves toward the joint portion 31 between the first metal plate 34 and the second metal plate 36 while elastically deforming 30. At that time, the pressure receiving portion 50 has a shape parallel to the outer peripheral surface of the second inner cylinder 28 at a constant interval, and vibration (stress) input to the second inner cylinder 28 is applied to the pressure receiving portion 50. Input in the normal direction. Therefore, the force to separate the first metal plate 34 and the second metal plate 36 becomes difficult to work, and the durability of the vibration proof connecting rod 10 can be improved.
　なお、本実施形態では、図５に例示するような受圧部５０を曲面で設ける場合について説明したが、例えば、図６に示すように、合わせ面３５より重ね合わせ方向Ｚに垂直に立ち上がり、第２内筒２８の外周面に対して平行な平面で受圧部５０を構成してもよい。 In the present embodiment, the case where the pressure receiving unit 50 illustrated in FIG. 5 is provided as a curved surface has been described. For example, as illustrated in FIG. The pressure receiving unit 50 may be configured by a plane parallel to the outer peripheral surface of the two inner cylinders 28.
　上記した構成以外は第１の実施形態と同様であり、詳細な説明は省略する。 The configuration other than the above is the same as that of the first embodiment, and detailed description thereof is omitted.
（第３実施形態）
　次に、第３実施形態について、図７～図９を参照して説明する。なお、上記した第１実施形態や第２実施形態と同一又は対応する構成には同一符号を付し、詳細な説明を省略する。 (Third embodiment)
Next, a third embodiment will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the structure which is the same as that of above-mentioned 1st Embodiment or 2nd Embodiment, or corresponding, and detailed description is abbreviate | omitted.
　本実施形態では、筒状の第１筒状部１２ａ及び第２筒状部１２ｂを軸Ｏ１方向に連結して形成された第１筒部１２が、円筒状に設けられ、合わせ面３５から膨らむように湾曲する第１湾曲部１４ａ及び第２湾曲部１４ｂを周方向に連結して形成された第２筒部１４が、角を丸めた矩形状の開口部を有する筒形状に設けられている。 In the present embodiment, the first cylindrical portion 12 formed by connecting the cylindrical first cylindrical portion 12a and the second cylindrical portion 12b in the direction of the axis O1 is provided in a cylindrical shape and swells from the mating surface 35. The second cylindrical portion 14 formed by connecting the first curved portion 14a and the second curved portion 14b that are curved in this manner in the circumferential direction is provided in a cylindrical shape having a rectangular opening with rounded corners. .
　詳細には、図７及び図９に示すように、第１金属板３４は、その長手方向Ｘの一端部に、円形状の第１円形孔部４２が穿設されている。第１円形孔部４２の周縁部には、第１金属板３４と第２金属板３６との合わせ面３５から重ね合わせ方向Ｚの一方側Ｚ１へ立ち上がる第１筒状部１２ａが形成されている。第１金属板３４の長手方向Ｘの他端部には、第１筒状部１２ａの立ち上がる方向Ｚ１に向けて膨らむように湾曲する第１湾曲部１４ａが形成されている。第１湾曲部１４ａには、第１湾曲部１４ａの外方（第１湾曲部１４ａが膨らむ方向）に陥没するゴム収容部３８が設けられている。 Specifically, as shown in FIGS. 7 and 9, the first metal plate 34 has a circular first circular hole 42 formed at one end in the longitudinal direction X thereof. A first cylindrical portion 12a rising from the mating surface 35 of the first metal plate 34 and the second metal plate 36 to the one side Z1 in the overlapping direction Z is formed at the peripheral portion of the first circular hole portion 42. . At the other end of the first metal plate 34 in the longitudinal direction X, a first bending portion 14a that is curved so as to swell toward the rising direction Z1 of the first cylindrical portion 12a is formed. The first bending portion 14a is provided with a rubber accommodating portion 38 that is recessed outward from the first bending portion 14a (the direction in which the first bending portion 14a swells).
　第２金属板３６は、金属板を第１金属板３４と同一形状にプレス成形したもので、第２金属板３６の長手方向Ｘの一端部に円形状の第２円形孔部４４が穿設され、その周縁部に合わせ面３５から重ね合わせ方向Ｚの他方側Ｚ２へ立ち上がる第２筒状部１２ｂが形成されている。第２金属板３４の長手方向Ｘの他端部には、第２筒状部１２ｂの立ち上がる方向Ｚ２に向けて膨らむように湾曲する第２湾曲部１４ｂが形成されている。第２湾曲部１４ｂには、第２湾曲部１４ｂの外方に陥没するゴム収容部３８が設けられている。 The second metal plate 36 is formed by press-molding a metal plate in the same shape as the first metal plate 34, and a circular second circular hole 44 is formed at one end portion in the longitudinal direction X of the second metal plate 36. A second cylindrical portion 12b that rises from the mating surface 35 to the other side Z2 in the overlapping direction Z is formed at the peripheral edge. A second curved portion 14b is formed at the other end portion in the longitudinal direction X of the second metal plate 34 so as to bend toward the rising direction Z2 of the second cylindrical portion 12b. The second bending portion 14b is provided with a rubber accommodating portion 38 that is recessed outward from the second bending portion 14b.
　第１筒部１２には、第１内筒２２とその外周面に一体に加硫接着された第１ゴム状弾性部２４とから構成された第１防振ブッシュ１８が設けられている。 The first cylinder portion 12 is provided with a first vibration isolating bush 18 composed of a first inner cylinder 22 and a first rubber-like elastic portion 24 integrally vulcanized and bonded to the outer peripheral surface thereof.
　第２筒部１４には、第２内筒２８とその外周面に一体に加硫接着された第２ゴム状弾性部３０とから構成され第２防振ブッシュ２０が設けられている。この第２防振ブッシュ２０は、第２ゴム状弾性部３０に設けられた一対の凸部２６が、第１金属板３４及び第２金属板３６に設けられたゴム収容部３８に嵌め込まれことで第２筒部１４の内側に設けられている。 The second cylinder portion 14 is provided with a second vibration isolating bush 20 composed of a second inner cylinder 28 and a second rubber-like elastic portion 30 integrally vulcanized and bonded to the outer peripheral surface thereof. In the second vibration isolating bush 20, a pair of convex portions 26 provided on the second rubber-like elastic portion 30 are fitted into rubber accommodating portions 38 provided on the first metal plate 34 and the second metal plate 36. And provided inside the second cylindrical portion 14.
　図９に示すように、第２筒部１４に設けられた第２防振ブッシュ２０の第２内筒２８は、軸Ｏ２方向の両端部が円柱状をなし、中央部が角を丸めた角柱状をなしている。第２筒部１４を構成する第１湾曲部１４ａ及び第２湾曲部１４ｂは、第１金属板３４及び第２金属板３６の合わせ面３５から垂直に立ち上がり、第２防振ブッシュ２０の第２内筒２８の外周面と平行な平面からなる受圧部５０を備える。 As shown in FIG. 9, the second inner cylinder 28 of the second vibration isolating bush 20 provided in the second cylinder part 14 has a cylindrical shape at both ends in the direction of the axis O <b> 2 and a corner rounded at the center. It is columnar. The first bending portion 14a and the second bending portion 14b constituting the second cylindrical portion 14 rise vertically from the mating surface 35 of the first metal plate 34 and the second metal plate 36, and the second vibration isolating bush 20 second. The pressure receiving part 50 which consists of a plane parallel to the outer peripheral surface of the inner cylinder 28 is provided.
　以上のような本実施形態の防振連結ロッド１０であっても、第１実施形態及び第２実施形態と同様の作用効果が奏される。 Even with the anti-vibration connecting rod 10 of the present embodiment as described above, the same effects as those of the first embodiment and the second embodiment are exhibited.
　なお、図１０に示すように、本実施形態では、第２防振ブッシュ２０の第２ゴム状弾性部３０に、第１金属板３４及び第２金属板３６の接合部３１に対向する位置に第２内筒２８へ向けて陥没する切欠部３２を設けてもよい。このような切欠部３２を第２ゴム状弾性部３０に設けることで、第２内筒２８に長手方向Ｘの振動が入力された際に、第２ゴム状弾性部３０が第１金属板３４と第２金属板３６との接合部３１に潜り込みにくくなり、防振連結ロッド１０の耐久性を向上させることができる。 As shown in FIG. 10, in the present embodiment, the second rubber-like elastic portion 30 of the second vibration isolating bush 20 is positioned at a position facing the joint portion 31 of the first metal plate 34 and the second metal plate 36. A notch 32 that is recessed toward the second inner cylinder 28 may be provided. By providing such a notch 32 in the second rubber-like elastic part 30, when vibration in the longitudinal direction X is input to the second inner cylinder 28, the second rubber-like elastic part 30 becomes the first metal plate 34. And the second metal plate 36 are less likely to enter the joint portion 31, and the durability of the vibration-isolating connecting rod 10 can be improved.
　また、本実施形態では、第２防振ブッシュ２０の第２内筒２８に、第１金属板３４及び第２金属板３６の接合部３１に対向する位置に、第２防振ブッシュの内方へ向けて陥没する凹部３７を設けてもよい。このように凹部３７を第２内筒２８に設けることでも第２ゴム状弾性部３０が第１金属板３４と第２金属板３６との接合部３１に潜り込みにくくなり、防振連結ロッド１０の耐久性を向上させることができる。 Further, in the present embodiment, the inner side of the second vibration isolating bush is located at a position facing the joint portion 31 of the first metal plate 34 and the second metal plate 36 on the second inner cylinder 28 of the second vibration isolating bush 20. You may provide the recessed part 37 recessed toward. By providing the concave portion 37 in the second inner cylinder 28 in this way, the second rubber-like elastic portion 30 is less likely to enter the joint portion 31 between the first metal plate 34 and the second metal plate 36, and the vibration isolating connecting rod 10 Durability can be improved.
１０…防振連結ロッド　　　１２…第１筒部　　　１２ａ…第１筒状部
１２ｂ…第２筒状部　　　１４…第２筒部　　　１４ａ…第１湾曲部
１４ｂ…第２湾曲部　　　１５…連結部　　　１６…ロッド本体
１８…第１防振ブッシュ　　　２０…第２防振ブッシュ　　　２２…第１内筒
２４…第１ゴム状弾性部　　　２６…凸部　　　２８…第２内筒
３０…第２ゴム状弾性部　　　３１…接合部　　　３２…切欠部
３３…フランジ部　　　３４…第１金属板　　　３５…合わせ面
３６…第２金属板　　　３７…凹部　　　３８…ゴム収容部 DESCRIPTION OF SYMBOLS 10 ... Anti-vibration connection rod 12 ... 1st cylinder part 12a ... 1st cylinder part 12b ... 2nd cylinder part 14 ... 2nd cylinder part 14a ... 1st bending part 14b ... 2nd bending part 15 ... Connection part 16 ... Rod body 18 ... first vibration isolating bush 20 ... second vibration isolating bush 22 ... first inner cylinder 24 ... first rubber-like elastic part 26 ... convex part 28 ... second inner cylinder 30 ... second rubber-like elastic part 31 ... Joint part 32 ... Notch part 33 ... Flange part 34 ... First metal plate 35 ... Matching surface 36 ... Second metal plate 37 ... Concave part 38 ... Rubber housing part

Claims (6)

  1. 　一端部に設けられた第１筒部と他端部に設けられた第２筒部とを備え、前記第１筒部の軸と前記第２筒部の軸とが直交するロッド本体と、
    　第１内筒と前記第１内筒の外周部を覆う第１ゴム状弾性部とを備え、前記第１筒部内に設けられる第１防振ブッシュと、
    　第２内筒と前記第２内筒の外周部を覆う第２ゴム状弾性部とを備え、前記第２筒部内に設けられる第２防振ブッシュと、
    　を備える防振連結ロッドにおいて、
    　前記ロッド本体は、第１金属板と、前記第１金属板に重ね合わせられた第２金属板とを備え、
    　前記第１金属板は、前記第１金属板と第２金属板との合わせ面から立ち上がる筒状の第１筒状部と、前記第１筒状部の立ち上がる方向に向けて膨らむように湾曲する第１湾曲部とを備え、
    　前記第２金属板は、前記合わせ面から立ち上がる筒状の第２筒状部と、前記第２筒状部の立ち上がる方向に向けて膨らむように湾曲する第２湾曲部とを備え、
    　前記第１筒部は、前記第１金属板と前記第２金属板とを重ね合わせることで前記第１筒状部と前記第２筒状部とを連結して形成され、
    　前記第２筒部は、前記第１金属板と前記第２金属板とを重ね合わせることで前記第１湾曲部と前記第２湾曲部とを連結して形成されることを特徴とする防振連結ロッド。     A rod body provided with a first cylinder part provided at one end and a second cylinder part provided at the other end, wherein the axis of the first cylinder part and the axis of the second cylinder part are orthogonal to each other;
    A first anti-vibration bush provided in the first cylinder part, comprising a first inner cylinder and a first rubber-like elastic part covering the outer periphery of the first inner cylinder;
    A second anti-vibration bush provided in the second cylinder part, comprising a second inner cylinder and a second rubber-like elastic part covering the outer periphery of the second inner cylinder;
    In an anti-vibration connecting rod comprising
    The rod body includes a first metal plate and a second metal plate superimposed on the first metal plate,
    The first metal plate is curved so as to swell toward the rising direction of the first cylindrical portion and the cylindrical first cylindrical portion rising from the mating surface of the first metal plate and the second metal plate. A first bending portion,
    The second metal plate includes a cylindrical second cylindrical portion that rises from the mating surface, and a second curved portion that curves so as to swell toward the rising direction of the second cylindrical portion,
    The first cylindrical portion is formed by connecting the first cylindrical portion and the second cylindrical portion by overlapping the first metal plate and the second metal plate,
    The second cylinder portion is formed by connecting the first bending portion and the second bending portion by overlapping the first metal plate and the second metal plate. Connecting rod.
  2. 　前記第１金属板と前記第２金属板とが同一形状であることを特徴とする請求項１に記載の防振連結ロッド。 The anti-vibration connecting rod according to claim 1, wherein the first metal plate and the second metal plate have the same shape.
  3. 　前記第２内筒の軸直角方向断面は、前記第１金属板と前記第２金属板との重ね合わせ方向の長さ寸法が、前記重ね合わせ方向に垂直な方向の長さ寸法より長い長円状であることを特徴とする請求項１又は２に記載の防振連結ロッド。 The cross section in the direction perpendicular to the axis of the second inner cylinder is an ellipse in which the length dimension in the overlapping direction of the first metal plate and the second metal plate is longer than the length dimension in the direction perpendicular to the overlapping direction. The anti-vibration connecting rod according to claim 1 or 2, wherein
  4. 　前記第１湾曲部及び第２湾曲部は、前記第２内筒の外周面と一定の間隔を保って並行する受圧部を備えることを特徴とする請求項１～３の１項に記載の防振連結ロッド。 4. The prevention according to claim 1, wherein the first bending portion and the second bending portion include a pressure receiving portion that is parallel to the outer peripheral surface of the second inner cylinder at a constant interval. Vibration connecting rod.
  5. 　前記受圧部は、前記合わせ面より前記第１金属板と前記第２金属板との重ね合わせ方向に対して垂直に立ち上がり、前記第２内筒の外周面に対して平行な平面からなることを特徴とする請求項４に記載の防振連結ロッド。 The pressure receiving portion rises perpendicularly to the overlapping direction of the first metal plate and the second metal plate from the mating surface, and includes a plane parallel to the outer peripheral surface of the second inner cylinder. The vibration-isolating connecting rod according to claim 4, wherein
  6. 　前記第２筒部は、その軸方向に沿って延びる前記第１金属板と前記第２金属板との接合部を備え、
    　前記第２ゴム状弾性部は、前記接合部と対向する位置に前記第２内筒へ向けて陥没する切欠部を備えることを特徴とする請求項１～５のいずれか１項に記載の防振連結ロッド。     The second cylindrical portion includes a joint portion between the first metal plate and the second metal plate extending along the axial direction thereof,
    The prevention according to any one of claims 1 to 5, wherein the second rubber-like elastic portion includes a cutout portion that is recessed toward the second inner cylinder at a position facing the joint portion. Vibration connecting rod.
PCT/JP2013/007197 2012-12-28 2013-12-06 Anti-vibration connecting rod WO2014103194A1 (en)

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US20150008305A1 (en) * 2013-07-04 2015-01-08 Ford Global Technologies, Llc System for reducing engine roll
US9242542B2 (en) * 2013-07-04 2016-01-26 Ford Global Technologies, Llc System for reducing engine roll
GB2537436A (en) * 2015-09-10 2016-10-19 Bentley Motors Ltd Handling strut
GB2537436B (en) * 2015-09-10 2017-04-19 Bentley Motors Ltd Handling strut
US10363805B2 (en) 2015-09-10 2019-07-30 Bentley Motors Limited Handling strut

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