WO2006070440A1 - Link device - Google Patents

Link device Download PDF

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Publication number
WO2006070440A1
WO2006070440A1 PCT/JP2004/019543 JP2004019543W WO2006070440A1 WO 2006070440 A1 WO2006070440 A1 WO 2006070440A1 JP 2004019543 W JP2004019543 W JP 2004019543W WO 2006070440 A1 WO2006070440 A1 WO 2006070440A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylindrical portion
cylindrical
link device
inner cylinder
axial direction
Prior art date
Application number
PCT/JP2004/019543
Other languages
French (fr)
Japanese (ja)
Inventor
Akira Yasukawa
Original Assignee
Toyo Tire & Rubber Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Tire & Rubber Co., Ltd. filed Critical Toyo Tire & Rubber Co., Ltd.
Priority to JP2005512266A priority Critical patent/JP4246735B2/en
Priority to PCT/JP2004/019543 priority patent/WO2006070440A1/en
Publication of WO2006070440A1 publication Critical patent/WO2006070440A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38Springs 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
    • F16F1/3842Method of assembly, production or treatment; Mounting thereof
    • F16F1/3849Mounting brackets therefor, e.g. stamped steel brackets; Restraining links
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00Pivoted suspension arms; Accessories thereof
    • B60G7/02Attaching arms to sprung part of vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12Arrangement of engine supports
    • B60K5/1241Link-type support

Definitions

  • the present invention relates to a so-called torque rod that is attached between a vehicle engine and a vehicle body to suppress the movement and vibration of the engine, and a link device that is used for a link mechanism of a vehicle suspension.
  • this type of link device includes an arm portion and a pair of cylindrical portions provided at both ends thereof, and is provided with an anti-vibration device in which a rubber elastic body is interposed between the inner tube and the outer tube. Each bush is press-fitted into the pair of cylindrical portions. Then, the cylindrical portion on one end side is fixed to the vibrating body side via the rubber elastic body, and the cylindrical portion on the other end side is fixed to the support body side via the rubber elastic body, thereby Thus, the movement or vibration of the vibrating body is suppressed (see, for example, Japanese Laid-Open Patent Publication No. 8-210440, Japanese Laid-Open Patent Publication No. 11-166584, and WO2002Z042662).
  • Patent Document 1 Japanese Patent Application Laid-Open No. 8-210440
  • Patent Document 2 Japanese Patent Laid-Open No. 11-166584
  • Patent Document 3 WO2002Z042662 Publication
  • an object of the present invention is to provide a link device that can effectively use the space around the link device.
  • a link device includes an arm portion and first tubes provided at both ends of the arm portion. And the second cylindrical part, the inner cylinders which are respectively mounted inside the cylindrical parts and are arranged in parallel to the cylindrical parts, and the inner cylinders are elastic to each cylindrical part. And a vibration isolating bush having a rubber elastic body for holding the first cylindrical portion and the second cylindrical portion so that planes perpendicular to the respective axes are orthogonal to each other.
  • the shaft of the second cylindrical portion is arranged at a position shifted from the center in the axial direction of the first cylindrical portion.
  • the rubber elastic body in the vibration-proof bushing mounted inside the first cylindrical portion, has the inner cylinder sandwiched between the arm portion side and the opposite arm portion side. It is preferable that a hollow portion is formed, and both side portions of the rubber elastic body between the hollow portions elastically hold the inner cylinder with respect to the first cylindrical portion. This makes it possible to obtain anti-vibration characteristics that are favorable for vibration input in the direction along the longitudinal direction of the arm portion.
  • the first tubular portion and the second tubular portion are offset as described above, when there is an input in a direction in which the second tubular portion is separated from the first tubular portion, the first tube The shape portion may be displaced in the twisting direction, which may impair durability.
  • the hollow portion on the side of the anti-arm portion is provided with a stubber rubber portion that protrudes inward in the radial direction of the inner peripheral surface side force of the first cylindrical portion, Stubber rubber part force In the axial direction of the first cylindrical part, the contact surface toward the inner cylinder side is inclined so that the protruding height increases toward the side where the second cylindrical part is shifted. And the displacement to the twist direction of the 1st cylindrical part can be suppressed.
  • a stubber rubber portion that protrudes radially outward from the outer peripheral surface side of the inner cylinder is provided in the cavity on the side opposite to the arm portion, and the stubber rubber portion is formed on the first cylindrical portion.
  • the contact surface toward the first cylindrical portion may be provided so as to be inclined such that the protruding height increases toward the side where the second cylindrical portion is shifted in the axial direction.
  • an inclined surface may be provided on the stubber rubber portion from which the inner cylinder side force also protrudes.
  • the displacement of the first cylindrical portion in the twisting direction can be suppressed.
  • the first cylindrical portion may be cut away in a circumferential direction portion on the side opposite to the arm portion at an axial end portion on the side where the second cylindrical portion is shifted. . This can prevent the end of the first cylindrical portion from interfering with the peripheral members when the first cylindrical portion is displaced in the twisting direction.
  • the vibration isolating bush attached to the inner portion of the first cylindrical portion is a shaft between the inner cylinder and the outer cylinder. It is preferable that the direction center is offset. That is, the anti-vibration bush includes an outer cylinder fitted to the inner peripheral surface of the first cylindrical portion, and the outer cylinder and the inner cylinder are coupled by the rubber elastic body. The axial dimension of the rubber elastic body is ensured that the center in the axial direction of the cylinder is shifted to the side opposite to the side where the second cylindrical portion is shifted with respect to the center in the axial direction of the inner cylinder. Preferred above.
  • the vibration isolating bush in which the inner cylinder and the outer cylinder are offset is connected to the first cylindrical section.
  • one end of the arm portion is fixed to the outer peripheral surface of the first tubular portion, and the other end portion is mounted in the second tubular portion.
  • a pair of support arms are provided to sandwich both axial end surfaces of the inner cylinder of the vibration isolating bush, and a bolt is inserted into the pair of support arms and the inner cylinder disposed between the pair of support arms to fasten the arms.
  • the first cylindrical part and the second cylindrical part may be provided continuously via the arm part.
  • the first cylindrical part side is fixed to the support side, for example, using the inner cylinder of the vibration isolating bush inside thereof, and the second cylindrical part side is fixed to the outer peripheral surface of the second cylindrical part.
  • the first cylindrical portion and the second cylindrical portion can be divided, so that the first cylindrical portion is fixed to the support side, for example, and the second cylindrical portion is fixed to the vibration side, for example, in advance.
  • the first cylindrical part force can be extended by fastening the support arm with the second cylindrical part with bolts so that they can be integrated together. Excellent workability.
  • the first cylindrical part side is coupled to the vehicle body, and the second cylindrical part side is coupled to the engine, respectively, to suppress the movement of the engine in the roll direction.
  • the first cylindrical part is provided with its axis directed in the vehicle vertical direction
  • the second cylindrical part is provided with its axis directed in the vehicle width direction
  • the axis of the second cylindrical part is provided. May be arranged at a position shifted downward with respect to the axial center of the first cylindrical portion.
  • the second cylindrical portion on one end side of the arm portion is disposed by offsetting the center surface force in the axial direction of the first cylindrical portion on the other end side.
  • the surrounding space can be used effectively, contributing to the compactness and space saving around the engine room and suspension.
  • the rubber elastic body is provided with a staggered rubber portion, and the predetermined inclination is applied to the contact surface thereof, whereby the first cylindrical portion is bent. Displacement in the direction can be suppressed.
  • FIG. 1 is a cross-sectional view showing an assembled state of the link device 10 according to the first embodiment of the present invention.
  • This link device 10 is a connecting rod (torque rod) for torque support to suppress the movement of the automobile engine in the roll direction, and connects the lower rear end of the engine 1 and the vehicle body 2 behind it. To do.
  • the link device 10 includes an arm portion 12 made of a metal material extending in the front-rear direction of the vehicle, a first cylindrical portion 14 made of a metal material provided at the rear end portion and connected to the vehicle body 2, and an arm portion. 12 is provided with a second cylindrical part 16 made of a metal material that is connected to the engine 1 and is connected to the engine 1 and anti-vibration bushes 18 and 20 mounted inside the cylindrical parts 14 and 16, respectively. It becomes.
  • the first cylindrical portion 14 has a cylindrical shape, and the shaft 22 thereof is provided in the vehicle vertical direction.
  • the second cylindrical portion 16 has a cylindrical shape with a smaller diameter than the first cylindrical portion 14 and is provided with its shaft 24 directed in the vehicle width direction.
  • the planes perpendicular to the axes 22 and 24 are perpendicular to each other (that is, the horizontal plane perpendicular to the axis 22 and the vertical plane (paper) perpendicular to the axis 24 are perpendicular to each other). ), And the movement and vibration of the engine 1 in the roll direction can be effectively suppressed.
  • the large-diameter vibration isolating bush 18 mounted in the first cylindrical portion 14 includes an inner cylinder 26 arranged coaxially with the first cylindrical portion 14, An outer cylinder 28 that surrounds the inner cylinder 26 and is fitted to the inner peripheral surface of the first cylindrical portion 14, and a rubber elasticity that is interposed between the inner cylinder 26 and the outer cylinder 28 to elastically couple them.
  • an inner cylinder 26 arranged coaxially with the first cylindrical portion 14
  • An outer cylinder 28 that surrounds the inner cylinder 26 and is fitted to the inner peripheral surface of the first cylindrical portion 14, and a rubber elasticity that is interposed between the inner cylinder 26 and the outer cylinder 28 to elastically couple them.
  • 30 bodies With 30 bodies.
  • the rubber elastic body 30 has a required width in the circumferential direction in front of and behind the inner cylinder 26, that is, opposite to the arm portion 12 side and the opposite arm portion side (opposite the arm portion).
  • the left and right portions 30a, 30a of the rubber elastic body 30 between these cavities 32, 34 support the inner cylinder 26 with respect to the outer cylinder 28 in an inertial manner. Is provided.
  • the hollow portions 32 and 34 are each wider than the outer diameter of the inner cylinder 26 in the circumferential direction in a cross section perpendicular to the axial direction.
  • the hollow portions 32 and 34 are provided with stopper rubber portions 36 and 38 that protrude radially inward from the inner peripheral surface of the outer cylinder 28.
  • the stopper rubber parts 36, 38 are intended to limit the excessive displacement by abutting against the outer peripheral surface of the opposed inner cylinder 26 with respect to the input in the direction along the longitudinal direction of the arm part 12.
  • a pair of surfaces 36a and 38a that abut against the rubber layer 40 covering the outer surface of the inner cylinder 26 are provided.
  • the outer shape of the inner cylinder 26 is formed in an irregular cross-sectional shape such that the thickness on the arm portion side is larger than the thickness on the non-arm portion side, which is not a circular cross-section.
  • the distance between the inner cylinder 26 and the outer cylinder 28 on the opposite arm side is set to a predetermined size.
  • the vibration isolating bush 18 shown in FIG. 2 is a drawing before drawing, and after the diameter is reduced by drawing, the anti-vibration bush 18 is formed on the first cylindrical portion 14 as shown in FIG. Press fit.
  • the vibration isolating bush 20 on the small diameter side mounted in the second cylindrical part 16 includes an inner cylinder 42 arranged coaxially with the second cylindrical part 16, and the inner cylinder An outer cylinder 44 that surrounds 42 and is fitted to the inner peripheral surface of the second cylindrical portion 16, and a rubber elastic body 46 that is interposed between the inner cylinder 42 and the outer cylinder 44 and elastically couples the two. It is equipped with.
  • the anti-vibration bush 20 shown in Fig. 8 is also before drawing FIG. 9 shows the diameter of the second cylindrical portion 16 after being reduced in diameter by drawing.
  • the arm portion 12 has one end portion 12 a fixed to the outer peripheral surface of the first cylindrical portion 14 by welding.
  • a pair of flat support arms 48, 48 sandwiching both axial end surfaces of the inner cylinder 42 of the vibration isolating bush 20 mounted in the second cylindrical portion 16. Is provided.
  • the pair of support arms 48, 48 are extended in parallel to each other from the first cylindrical portion 14 toward the front of the vehicle, and through holes 50, 50 in the vehicle width direction are provided at the front end portions, respectively.
  • a bolt (not shown) is passed through the through holes 50, 50 of the pair of support arms 48, 48 and the inner cylinder 42 disposed therebetween, and tightened with a nut 52, whereby the first cylindrical portion 14 And the second cylindrical portion 16 are connected via the arm portion 12.
  • a bracket 54 for attachment to the engine 1 is fixed to the outer peripheral surface of the second tubular portion 16 by welding.
  • the bracket 54 includes a first fixing portion 56 that extends upward to fasten to the rear surface of the engine 1 and a second fixing portion 58 that extends forward to fasten to the side surface of the lower end of the engine 1, as shown in FIG.
  • these fixing portions 56 and 58 are fixed to the engine 1 using bolts 60.
  • the inner cylinder 26 of the vibration isolating bush 18 attached to the first cylindrical portion 14 is used with a bolt 62 inserted therein. Is fixed to the vehicle body 2.
  • the shaft 24 of the second cylindrical portion 16 is the center 64 in the axial direction of the first cylindrical portion 14 (that is, the first cylindrical portion 14 ).
  • the second cylindrical portion 16 is arranged at a position shifted downward from this point on the same horizontal plane.
  • the central surface force in the axial direction is also offset in the axial direction.
  • the first cylindrical part 14 and the inner cylinder 26 inside thereof are coaxial
  • the second cylindrical part 16 and the inner cylinder 42 inside thereof are coaxial, so that the second cylindrical part
  • the inner cylinder 42 on the part 16 side is arranged offset downward with respect to the axial center 64 of the inner cylinder 26 on the first cylindrical part 14 side.
  • the pair of support arms 48, 48 of the arm portion 12 extend obliquely downward toward the front end side.
  • the link device 10 By offsetting in this way, the space around the link device 10 can be used effectively. That is, from the arrangement relationship between the engine 1 and the vehicle body 2, the engine is Even if the connecting part on the 1 side is set lower than the connecting part on the vehicle body 2 side, the link device 10 can be connected as it is without adjusting the connecting position separately. This saves space.
  • the strut rubber portion 38 provided in the cavity portion 34 on the anti-arm portion side has a projecting height toward the lower side.
  • the contact surface 38a toward the inner cylinder 26 side is provided so as to be inclined.
  • the stopper rubber portion 38 has a contact surface 38a formed as a negative surface, and the contact surface 38a is not parallel to the opposing rubber layer 40, but is inclined so as to approach the rubber layer 40 downward. ing.
  • the stopper rubber portion 38 is provided with a small cavity (straight) 66 in the axial direction.
  • the small cavities 66 are provided so as to penetrate the stopper rubber portion 38 in the axial direction, and two small cavities 66 are provided side by side in the circumferential direction as shown in FIG.
  • the small cavity 66 is not limited to such an axial through hole, and may be a non-through recess.
  • the first cylindrical portion 14 is provided with a notch 68 by notching the circumferential portion on the side opposite to the arm at the lower end. It has been.
  • the notch 68 is provided over the semicircular portion of the first cylindrical portion 14.
  • both cylinders 26 and 28 are formed so that the axial centers of the inner cylinder 26 and the outer cylinder 28 are offset. That is, the center 70 in the axial direction of the outer cylinder 28 is shifted upward with respect to the center 64 in the axial direction of the inner cylinder 26 (the same as the center in the axial direction of the first cylindrical portion 14).
  • the upper end side of the outer tube 28 also needs to be shortened. However, if the offset is made in this way, the axial dimension on the upper end side of the outer cylinder 28 is secured, and accordingly, it becomes difficult to secure a sufficient axial dimension of the rubber elastic body 30. It is possible to secure the axial dimension of the rubber elastic body 30. wear.
  • an identification protrusion 72 is provided on one side surface (here, the upper surface) of the rubber elastic body 30 in the axial direction.
  • the identification convex portion 72 is provided in a curved line extending in the circumferential direction in the left and right portions 30a, 30a of the rubber elastic body 30 so that the front and back of the vibration isolating bush 18 can be easily identified! /
  • the first tubular portion 14 is attached to the vehicle body 2 and the second tubular portion 16 is attached to the engine 1.
  • the inner cylinder 26 is fixed to the mounting recess 3 of the vehicle body 2 using the bolt 62
  • the bracket 54 is fixed using the bolt 60.
  • the engine 1 with the second cylindrical portion 16 attached is also mounted with an upward force on the vehicle body 2, and the inner cylinder 42 on the second cylindrical portion 16 side is inserted between the pair of support arms 48 of the arm portion 12.
  • the engine 1 and the vehicle body 2 are connected via the link device 10 by connecting them using bolts (not shown).
  • the link device 10 Since the link device 10 is assembled in such a manner as described above, the work for fixing the first cylindrical portion 14 and the second cylindrical portion 16 to the vehicle body 2 and the engine 1 respectively is performed before the engine is mounted on the vehicle body. It can be carried out in a wide work space and has excellent assembly workability.
  • the second cylindrical shape is caused by vibration in the roll direction of the engine 1, as shown in FIG.
  • a pulling force is applied to the part 16 as indicated by the arrow X
  • the first tubular part 14 is twisted in the direction of the twist (rotation direction) so that the opposite arm side bows downward as indicated by the arrow Y.
  • the force that tries to displace is applied.
  • the displacement in the direction of force is not so much a problem as long as the small cavity 66 in the axial direction does not collapse, and it does not matter so much in the area!
  • the small cavity 66 collapses further In the compression limit region where the force acts, a phenomenon that the first cylindrical portion 14 interferes with the bottom plate 4 of the vehicle body 2 suddenly increases in the displacement in the twisting direction is observed. Therefore, as described above, in the present embodiment, the contact surface 38a of the stopper rubber portion 38 is inclined. As a result, when the stopper rubber part 38 is compressed, the amount of rubber on the lower side in the axial direction is large, so that it is twisted in the compression limit region that is difficult to displace in the twisting direction indicated by the arrow Y. Displacement can be suppressed. In addition, even when displaced in the twisting direction, the first cylindrical portion 14 interferes with the bottom plate 4 of the vehicle body 2 because the notched portion 68 is provided at the lower end portion of the first cylindrical portion 14 on the opposite arm side. Can be reliably prevented.
  • FIG. 10 shows a second embodiment.
  • the stopper rubber protrudes radially outward from the outer peripheral surface of the inner tube 26 into the cavity 34 on the side opposite to the arm portion.
  • Part 74 is provided.
  • the stubber rubber portion 74 abuts against the stubber receiving rubber portion 76 on the opposite outer cylinder 28 side with respect to the input in the longitudinal direction of the arm portion 12, thereby limiting excessive displacement of the outer cylinder 26. Therefore, a contact surface 74 a that abuts against the stopper receiving rubber portion 76 is provided.
  • the stopper rubber portion 74 is provided with the contact surface 74a inclined so that the protruding height increases toward the lower side. That is, the stopper rubber portion 74 is formed with a contact surface 74a having a negative surface, and the stopper surface rubber portion is located in the lower part of the contact surface 74a that is not parallel to the surface of the stopper receiving rubber portion 76 on the opposite outer cylinder side. Inclined to approach 76.
  • the link device of each of the embodiments described above is provided to suppress movement or vibration of the engine unit in the roll direction when an engine unit including a transmission or the like is incorporated in a vehicle body and supported by a vibration isolation mount. It is used as a torque rod that connects a part of the unit to the vehicle body.
  • the present invention is not limited to this and can also be used as a link device used in a link mechanism of a vehicle suspension.
  • the second cylindrical portion on one end side of the arm portion is arranged offset with respect to the first cylindrical portion on the other end side, thereby effectively utilizing the space around the link device. Therefore, it is suitable as a torque rod for torque support when an automobile engine is mounted on and supported by a vehicle body, or as a link device for an automobile suspension. Can be used for
  • FIG. 1 is a cross-sectional view showing an assembled state of a link device according to a first embodiment of the present invention.
  • FIG. 2 is a side view of an anti-vibration bush on the first tubular portion side in the link device same as above.
  • FIG. 3 is a cross-sectional view taken along line III-III in FIG.
  • FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
  • FIG. 5 is a cross-sectional view taken along line V—V in FIG.
  • FIG. 6 is a plan view of a first cylindrical portion and an arm portion in the link device same as above.
  • FIG. 7 is a side view of the first tubular part and the arm part of the above.
  • FIG. 8 is a cross-sectional view of an anti-vibration bush on the second cylindrical portion side in the above-mentioned link device.
  • FIG. 9 is a side view of the second cylindrical portion and the bracket.
  • FIG. 10 is a cross-sectional view of a first tubular portion and an arm portion of a link device according to a second embodiment. Explanation of symbols

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Springs (AREA)
  • Vibration Prevention Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A link device (10) having an arm section (12), a first tubular section (14) and a second tubular section (16) that are installed at both ends of the arm section, and vibration absorption bushes (18, 20) having inner tubes (26, 42) that are individually installed inside the tubular sections and are arranged in axially parallel to the tubular sections and having elastic rubber bodies (30, 46) for elastically holding the inner tubes at the tubular sections. The first tubular section (14) and the second tubular section (16) are arranged such that planes that are vertical to respective shafts (22, 24) are orthogonal to each other, and that the shaft (24) of the second tubular section is displaced from the center (64) in the axial direction of the first tubular section (14).

Description

明 細 書  Specification
リンク装置  Link device
技術分野  Technical field
[0001] 本発明は、車両のエンジンと車体との間に取り付けられてエンジンの動きや振動を 抑制する所謂トルクロッドや、車両のサスペンションのリンク機構などに用いられるリン ク装置に関する。  TECHNICAL FIELD [0001] The present invention relates to a so-called torque rod that is attached between a vehicle engine and a vehicle body to suppress the movement and vibration of the engine, and a link device that is used for a link mechanism of a vehicle suspension.
背景技術  Background art
[0002] 従来、この種のリンク装置は、アーム部と、その両端に設けられた一対の筒状部とを 備え、内筒と外筒との間にゴム弾性体を介在させてなる防振ブッシュを上記一対の 筒状部内にそれぞれ圧入することにより構成されている。そして、一端側の筒状部を ゴム弾性体を介して振動体側に固定するとともに、他端側の筒状部をゴム弾性体を 介して支持体側に固定することにより、振動体と支持体とを連結し、これにより振動体 の動き又は振動を抑制するようになっている(例えば、日本国特開平 8— 210440号 公報、 日本国特開平 11— 166584号公報、 WO2002Z042662号公報参照)。 特許文献 1 :日本国特開平 8— 210440号公報  Conventionally, this type of link device includes an arm portion and a pair of cylindrical portions provided at both ends thereof, and is provided with an anti-vibration device in which a rubber elastic body is interposed between the inner tube and the outer tube. Each bush is press-fitted into the pair of cylindrical portions. Then, the cylindrical portion on one end side is fixed to the vibrating body side via the rubber elastic body, and the cylindrical portion on the other end side is fixed to the support body side via the rubber elastic body, thereby Thus, the movement or vibration of the vibrating body is suppressed (see, for example, Japanese Laid-Open Patent Publication No. 8-210440, Japanese Laid-Open Patent Publication No. 11-166584, and WO2002Z042662). Patent Document 1: Japanese Patent Application Laid-Open No. 8-210440
特許文献 2 :日本国特開平 11—166584号公報  Patent Document 2: Japanese Patent Laid-Open No. 11-166584
特許文献 3: WO2002Z042662号公報  Patent Document 3: WO2002Z042662 Publication
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0003] 上記従来のリンク装置においては、アーム部の一端側の筒状部と他端側の筒状部 とがオフセットされずに設けられていたため、リンク装置周りの空間を有効活用するこ とができず、エンジンルームやサスペンション周りのコンパクト化、省スペース化を図 ることが困難であった。 [0003] In the above-described conventional link device, the cylindrical portion on one end side and the cylindrical portion on the other end side of the arm portion are provided without being offset, so that the space around the link device can be effectively utilized. It was difficult to make the engine room and suspension area compact and save space.
[0004] 本発明は、このような点に鑑み、リンク装置周りの空間を有効活用することができるリ ンク装置を提供することを目的とする。  [0004] In view of the above, an object of the present invention is to provide a link device that can effectively use the space around the link device.
課題を解決するための手段  Means for solving the problem
[0005] 本発明に係るリンク装置は、アーム部と、該アーム部の両端部に設けられた第 1筒 状部及び第 2筒状部と、これら筒状部の内部にそれぞれ装着されるものであって筒 状部に軸平行に配された内筒と該内筒を各筒状部に対して弾性的に保持するゴム 弾性体を備える防振ブッシュと、を備えてなるリンク装置において、前記第 1筒状部と 前記第 2筒状部は、それぞれの軸に垂直な平面が互いに直交するよう設けられるとと もに、第 2筒状部の軸が第 1筒状部の軸方向における中心に対してずれた位置に配 されたものである。 [0005] A link device according to the present invention includes an arm portion and first tubes provided at both ends of the arm portion. And the second cylindrical part, the inner cylinders which are respectively mounted inside the cylindrical parts and are arranged in parallel to the cylindrical parts, and the inner cylinders are elastic to each cylindrical part. And a vibration isolating bush having a rubber elastic body for holding the first cylindrical portion and the second cylindrical portion so that planes perpendicular to the respective axes are orthogonal to each other. In addition, the shaft of the second cylindrical portion is arranged at a position shifted from the center in the axial direction of the first cylindrical portion.
[0006] このように第 2筒状部を第 1筒状部の軸方向における中心面力 オフセットさせて配 置することにより、リンク装置周りの空間を有効活用することができ、エンジンルームや サスペンション周りのコンパクトィ匕ゃ省スペース化に寄与することができる。  [0006] Thus, by arranging the second cylindrical portion with the offset of the center surface force in the axial direction of the first cylindrical portion, the space around the link device can be effectively used, and the engine room and the suspension can be used. The surrounding compactness can contribute to space saving.
[0007] 上記リンク装置においては、前記第 1筒状部の内部に装着された前記防振ブッシュ において、前記ゴム弾性体には、前記内筒を挟んでアーム部側と反アーム部側にそ れぞれ空洞部が形成され、これら空洞部間の前記ゴム弾性体の両側部分が前記内 筒を前記第 1筒状部に対して弾性的に保持していることが好ましい。これにより、ァー ム部の長手方向に沿う方向の振動入力に対して好ま U、防振特性を得ることができ る。  [0007] In the link device, in the vibration-proof bushing mounted inside the first cylindrical portion, the rubber elastic body has the inner cylinder sandwiched between the arm portion side and the opposite arm portion side. It is preferable that a hollow portion is formed, and both side portions of the rubber elastic body between the hollow portions elastically hold the inner cylinder with respect to the first cylindrical portion. This makes it possible to obtain anti-vibration characteristics that are favorable for vibration input in the direction along the longitudinal direction of the arm portion.
[0008] 上記のように第 1筒状部と第 2筒状部をオフセットさせた場合、第 2筒状部を第 1筒 状部から離間させる方向に入力があつたときに、第 1筒状部がこじれ方向に変位して 、耐久性を損なうことがある。これに対し、本発明のリンク装置において、前記反ァー ム部側の空洞部に前記第 1筒状部の内周面側力 半径方向内方に向けて突出する ストツバゴム部が設けられ、該ストツバゴム部力 前記第 1筒状部の軸方向において前 記第 2筒状部がずらされた側ほど突出高さが高くなるように内筒側へのあたり面が傾 斜して設けられていると、第 1筒状部のこじれ方向への変位を抑制することができる。  [0008] When the first tubular portion and the second tubular portion are offset as described above, when there is an input in a direction in which the second tubular portion is separated from the first tubular portion, the first tube The shape portion may be displaced in the twisting direction, which may impair durability. On the other hand, in the link device of the present invention, the hollow portion on the side of the anti-arm portion is provided with a stubber rubber portion that protrudes inward in the radial direction of the inner peripheral surface side force of the first cylindrical portion, Stubber rubber part force In the axial direction of the first cylindrical part, the contact surface toward the inner cylinder side is inclined so that the protruding height increases toward the side where the second cylindrical part is shifted. And the displacement to the twist direction of the 1st cylindrical part can be suppressed.
[0009] また、前記反アーム部側の空洞部に前記内筒の外周面側から半径方向外方に向 けて突出するストツバゴム部が設けられ、該ストツバゴム部が、前記第 1筒状部の軸方 向において前記第 2筒状部がずらされた側ほど突出高さが高くなるように第 1筒状部 側へのあたり面が傾斜して設けられてもよい。このように内筒側力も突出するストツバ ゴム部に傾斜面を設けてもよぐこの場合も同様に、第 1筒状部のこじれ方向への変 位を抑制することができる。 [0010] 上記リンク装置において、前記ストッパゴム部に軸方向の小空洞が設けられている と、ストツバゴム部による静バネ定数を維持したまま、動パネ定数を低減することがで き、乗り心地性を向上することができる。 [0009] Further, a stubber rubber portion that protrudes radially outward from the outer peripheral surface side of the inner cylinder is provided in the cavity on the side opposite to the arm portion, and the stubber rubber portion is formed on the first cylindrical portion. The contact surface toward the first cylindrical portion may be provided so as to be inclined such that the protruding height increases toward the side where the second cylindrical portion is shifted in the axial direction. In this case, an inclined surface may be provided on the stubber rubber portion from which the inner cylinder side force also protrudes. Similarly, in this case, the displacement of the first cylindrical portion in the twisting direction can be suppressed. [0010] In the above link device, when the stopper rubber portion is provided with a small cavity in the axial direction, the dynamic panel constant can be reduced while maintaining the static spring constant by the stubber rubber portion, and the ride comfort is improved. Can be improved.
[0011] 本発明のリンク装置において、前記第 1筒状部は、前記第 2筒状部がずらされた側 の軸方向端部において反アーム部側の周方向部分が切り欠かれてもよい。これによ り、第 1筒状部がこじれ方向に変位したときに、第 1筒状部の端部が周辺部材に干渉 することを防止することができる。  [0011] In the link device of the present invention, the first cylindrical portion may be cut away in a circumferential direction portion on the side opposite to the arm portion at an axial end portion on the side where the second cylindrical portion is shifted. . This can prevent the end of the first cylindrical portion from interfering with the peripheral members when the first cylindrical portion is displaced in the twisting direction.
[0012] また、このように第 1筒状部の一端部に切欠部を設ける場合、前記第 1筒状部の内 部に装着される前記防振ブッシュは、内筒と外筒との軸方向中心がオフセットされて いることが好ましい。すなわち、該防振ブッシュが、前記第 1筒状部の内周面に嵌合 される外筒を備えて、該外筒と前記内筒とが前記ゴム弾性体により結合されており、 前記外筒の軸方向における中心が前記内筒の軸方向における中心に対して前記第 2筒状部がずらされた側とは反対側にずれていることが、ゴム弾性体の軸方向寸法を 確保する上で好ましい。  [0012] When the cutout portion is provided at one end portion of the first cylindrical portion in this way, the vibration isolating bush attached to the inner portion of the first cylindrical portion is a shaft between the inner cylinder and the outer cylinder. It is preferable that the direction center is offset. That is, the anti-vibration bush includes an outer cylinder fitted to the inner peripheral surface of the first cylindrical portion, and the outer cylinder and the inner cylinder are coupled by the rubber elastic body. The axial dimension of the rubber elastic body is ensured that the center in the axial direction of the cylinder is shifted to the side opposite to the side where the second cylindrical portion is shifted with respect to the center in the axial direction of the inner cylinder. Preferred above.
[0013] また、この場合、前記ゴム弾性体の軸方向における一方の側面に識別用凸部が設 けられていると、内筒と外筒がオフセットされた防振ブッシュを第 1筒状部に挿入する 際に装着方向を誤るといったことがなくなる。  [0013] In this case, when the identification convex portion is provided on one side surface in the axial direction of the rubber elastic body, the vibration isolating bush in which the inner cylinder and the outer cylinder are offset is connected to the first cylindrical section. There is no need to make a mistake in the mounting direction when inserting it into the camera.
[0014] 本発明のリンク装置において、前記アーム部は、その一端部が前記第 1筒状部の 外周面に固着されるとともに、他端部には前記第 2筒状部内に装着された前記防振 ブッシュの前記内筒の軸方向両端面を挟持する一対の支持腕が設けられ、該一対 の支持腕とその間に配された内筒の内側にボルトを挿通させて締結することにより、 前記第 1筒状部と前記第 2筒状部が前記アーム部を介して連設されてもよい。この場 合、第 1筒状部側は、その内側の防振ブッシュの内筒を用いて例えば支持体側に固 定され、第 2筒状部側は、第 2筒状部の外周面に固着したブラケット等を介して例え ば振動体側に固定される。その際、このリンク装置では、第 1筒状部と第 2筒状部が 分割可能であるため、予め、第 1筒状部を例えば支持体側に、第 2筒状部を例えば 振動体側に固定しておき、振動体を支持体に組付けるときに第 1筒状部力 延びる 支持腕を第 2筒状部とボルトで締結することにより両者を一体ィ匕することができ、組付 け作業性に優れる。 [0014] In the link device of the present invention, one end of the arm portion is fixed to the outer peripheral surface of the first tubular portion, and the other end portion is mounted in the second tubular portion. A pair of support arms are provided to sandwich both axial end surfaces of the inner cylinder of the vibration isolating bush, and a bolt is inserted into the pair of support arms and the inner cylinder disposed between the pair of support arms to fasten the arms. The first cylindrical part and the second cylindrical part may be provided continuously via the arm part. In this case, the first cylindrical part side is fixed to the support side, for example, using the inner cylinder of the vibration isolating bush inside thereof, and the second cylindrical part side is fixed to the outer peripheral surface of the second cylindrical part. For example, it is fixed to the vibrating body via a bracket. At this time, in this link device, the first cylindrical portion and the second cylindrical portion can be divided, so that the first cylindrical portion is fixed to the support side, for example, and the second cylindrical portion is fixed to the vibration side, for example, in advance. In addition, when the vibrating body is assembled to the support body, the first cylindrical part force can be extended by fastening the support arm with the second cylindrical part with bolts so that they can be integrated together. Excellent workability.
[0015] 本発明のリンク装置においては、前記第 1筒状部側が車体に、前記第 2筒状部側 がエンジンに、それぞれ結合されて、エンジンのロール方向の動きを抑制するもので あることが好ましい。この場合、前記第 1筒状部がその軸を車両上下方向に向けて設 けられ、前記第 2筒状部がその軸を車両幅方向に向けて設けられ、前記第 2筒状部 の軸が前記第 1筒状部の軸方向における中心に対して下方にずれた位置に配され てもよい。  In the link device of the present invention, the first cylindrical part side is coupled to the vehicle body, and the second cylindrical part side is coupled to the engine, respectively, to suppress the movement of the engine in the roll direction. Is preferred. In this case, the first cylindrical part is provided with its axis directed in the vehicle vertical direction, the second cylindrical part is provided with its axis directed in the vehicle width direction, and the axis of the second cylindrical part is provided. May be arranged at a position shifted downward with respect to the axial center of the first cylindrical portion.
発明の効果  The invention's effect
[0016] 本発明のリンク装置によれば、アーム部の一端側の第 2筒状部を他端側の第 1筒状 部の軸方向における中心面力 オフセットさせて配置することにより、リンク装置周り の空間を有効活用することができ、エンジンルームやサスペンション周りのコンパクト 化や省スペース化に寄与することができる。  According to the link device of the present invention, the second cylindrical portion on one end side of the arm portion is disposed by offsetting the center surface force in the axial direction of the first cylindrical portion on the other end side. The surrounding space can be used effectively, contributing to the compactness and space saving around the engine room and suspension.
[0017] また、その第 1筒状部内に装着される防振ブッシュにおいてゴム弾性体にストツバゴ ム部を設けて、そのあたり面に上記所定の傾斜をつけることにより、第 1筒状部のこじ れ方向への変位を抑制することができる。  [0017] In addition, in the anti-vibration bush mounted in the first cylindrical portion, the rubber elastic body is provided with a staggered rubber portion, and the predetermined inclination is applied to the contact surface thereof, whereby the first cylindrical portion is bent. Displacement in the direction can be suppressed.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0018] 次に、本発明の実施形態に係るリンク装置について図面を参照して説明する。  Next, a link device according to an embodiment of the present invention will be described with reference to the drawings.
[0019] 図 1は本発明の第 1の実施形態に係るリンク装置 10の組付け状態を示す断面図で ある。このリンク装置 10は、自動車のエンジンのロール方向の動きを抑制するための トルク支持用の連結ロッド(トルクロッド)であり、エンジン 1の下部後端部とその後方の 車体 2との間を連結するものである。  FIG. 1 is a cross-sectional view showing an assembled state of the link device 10 according to the first embodiment of the present invention. This link device 10 is a connecting rod (torque rod) for torque support to suppress the movement of the automobile engine in the roll direction, and connects the lower rear end of the engine 1 and the vehicle body 2 behind it. To do.
[0020] リンク装置 10は、車両の前後方向に延びる金属材よりなるアーム部 12と、その後端 部に設けられて車体 2に連結される金属材よりなる第 1筒状部 14と、アーム部 12の前 端部に設けられてエンジン 1に連結される金属材よりなる第 2筒状部 16と、両筒状部 14, 16の内部にそれぞれ装着された防振ブッシュ 18, 20とを備えてなる。  [0020] The link device 10 includes an arm portion 12 made of a metal material extending in the front-rear direction of the vehicle, a first cylindrical portion 14 made of a metal material provided at the rear end portion and connected to the vehicle body 2, and an arm portion. 12 is provided with a second cylindrical part 16 made of a metal material that is connected to the engine 1 and is connected to the engine 1 and anti-vibration bushes 18 and 20 mounted inside the cylindrical parts 14 and 16, respectively. It becomes.
[0021] 第 1筒状部 14は、円筒状をなし、その軸 22を車両上下方向に向けて設けられてい る。第 2筒状部 16は、第 1筒状部 14よりも小径の円筒状をなし、その軸 24を車両幅 方向に向けて設けられている。これにより、第 1筒状部 14と第 2筒状部 16は、それぞ れの軸 22, 24に垂直な平面が互いに直交するよう設けられており(即ち、軸 22に垂 直な平面である水平面と、軸 24に垂直な平面である鉛直面 (紙面)とは直交している 。)、エンジン 1のロール方向の動きや振動を効果的に抑制することができるようにな つている。 [0021] The first cylindrical portion 14 has a cylindrical shape, and the shaft 22 thereof is provided in the vehicle vertical direction. The second cylindrical portion 16 has a cylindrical shape with a smaller diameter than the first cylindrical portion 14 and is provided with its shaft 24 directed in the vehicle width direction. As a result, the first cylindrical portion 14 and the second cylindrical portion 16 are separated from each other. The planes perpendicular to the axes 22 and 24 are perpendicular to each other (that is, the horizontal plane perpendicular to the axis 22 and the vertical plane (paper) perpendicular to the axis 24 are perpendicular to each other). ), And the movement and vibration of the engine 1 in the roll direction can be effectively suppressed.
[0022] 第 1筒状部 14内に装着される大径側の防振ブッシュ 18は、図 2— 4に示すように、 第 1筒状部 14と同軸に配された内筒 26と、該内筒 26を取り囲み第 1筒状部 14の内 周面に嵌合された外筒 28と、これら内筒 26と外筒 28との間に介在して両者を弾性 的に結合するゴム弾性体 30とを備えてなる。  As shown in FIG. 2-4, the large-diameter vibration isolating bush 18 mounted in the first cylindrical portion 14 includes an inner cylinder 26 arranged coaxially with the first cylindrical portion 14, An outer cylinder 28 that surrounds the inner cylinder 26 and is fitted to the inner peripheral surface of the first cylindrical portion 14, and a rubber elasticity that is interposed between the inner cylinder 26 and the outer cylinder 28 to elastically couple them. With 30 bodies.
[0023] ゴム弾性体 30には、内筒 26を挟んで前後に、即ちアーム部 12側と反アーム部側( アーム部と反対側)に相対向してそれぞれ周方向に所要の幅を持った空洞部 32, 3 4が設けられており、これらの空洞部 32, 34間のゴム弾性体 30の左右部分 30a, 30 aが内筒 26を外筒 28に対して弹性的に支持するように設けられている。空洞部 32, 34は、それぞれ軸方向に対して直角の断面にお!ヽて周方向に内筒 26の外径よりも 広幅とされている。  [0023] The rubber elastic body 30 has a required width in the circumferential direction in front of and behind the inner cylinder 26, that is, opposite to the arm portion 12 side and the opposite arm portion side (opposite the arm portion). The left and right portions 30a, 30a of the rubber elastic body 30 between these cavities 32, 34 support the inner cylinder 26 with respect to the outer cylinder 28 in an inertial manner. Is provided. The hollow portions 32 and 34 are each wider than the outer diameter of the inner cylinder 26 in the circumferential direction in a cross section perpendicular to the axial direction.
[0024] これら空洞部 32, 34には、外筒 28の内周面から半径方向内方に向けて突出する ストッパゴム部 36, 38が設けられている。ストッパゴム部 36, 38は、アーム部 12の長 手方向に沿う方向の入力に対して、相対向する内筒 26の外周面に当接することで、 その過大変位を制限するものであり、内筒 26の外表面を覆うゴム層 40に当接するあ たり面 36a, 38aを備える。  The hollow portions 32 and 34 are provided with stopper rubber portions 36 and 38 that protrude radially inward from the inner peripheral surface of the outer cylinder 28. The stopper rubber parts 36, 38 are intended to limit the excessive displacement by abutting against the outer peripheral surface of the opposed inner cylinder 26 with respect to the input in the direction along the longitudinal direction of the arm part 12. A pair of surfaces 36a and 38a that abut against the rubber layer 40 covering the outer surface of the inner cylinder 26 are provided.
[0025] なお、内筒 26の外形は断面円形ではなぐアーム部側での厚みが反アーム部側で の厚みよりも大きくなるような異形の断面形状に形成されており、これによりアーム部 側と反アーム部側での内筒 26と外筒 28との間隔をそれぞれ所定の寸法に設定して いる。また、図 2に示された防振ブッシュ 18は絞り加工前の図であり、防振ブッシュ 18 は、絞り加工により縮径された後、図 6に示されるように第 1筒状部 14に圧入される。  [0025] It should be noted that the outer shape of the inner cylinder 26 is formed in an irregular cross-sectional shape such that the thickness on the arm portion side is larger than the thickness on the non-arm portion side, which is not a circular cross-section. The distance between the inner cylinder 26 and the outer cylinder 28 on the opposite arm side is set to a predetermined size. Further, the vibration isolating bush 18 shown in FIG. 2 is a drawing before drawing, and after the diameter is reduced by drawing, the anti-vibration bush 18 is formed on the first cylindrical portion 14 as shown in FIG. Press fit.
[0026] 第 2筒状部 16内に装着される小径側の防振ブッシュ 20は、図 8に示すように、第 2 筒状部 16と同軸に配された内筒 42と、該内筒 42を取り囲み第 2筒状部 16の内周面 に嵌合された外筒 44と、これら内筒 42と外筒 44との間に介在して両者を弾性的に 結合するゴム弾性体 46とを備えてなる。図 8に示された防振ブッシュ 20も絞り加工前 の図であり、絞り加工により縮径された後に図 9に示されるように第 2筒状部 16に圧入 される。 As shown in FIG. 8, the vibration isolating bush 20 on the small diameter side mounted in the second cylindrical part 16 includes an inner cylinder 42 arranged coaxially with the second cylindrical part 16, and the inner cylinder An outer cylinder 44 that surrounds 42 and is fitted to the inner peripheral surface of the second cylindrical portion 16, and a rubber elastic body 46 that is interposed between the inner cylinder 42 and the outer cylinder 44 and elastically couples the two. It is equipped with. The anti-vibration bush 20 shown in Fig. 8 is also before drawing FIG. 9 shows the diameter of the second cylindrical portion 16 after being reduced in diameter by drawing.
[0027] 図 6, 7に示すように、アーム部 12は、その一端部 12aが第 1筒状部 14の外周面に 溶接により固着されている。一方、アーム部 12の他端部には、第 2筒状部 16内に装 着された防振ブッシュ 20の内筒 42の軸方向両端面を挟持する一対の平板状の支持 腕 48, 48が設けられている。該一対の支持腕 48, 48は、第 1筒状部 14から車両前 方に向けて互いに平行に延設され、前端部にはそれぞれ車両幅方向の貫通孔 50, 50が設けられている。そして、これら一対の支持腕 48, 48の貫通孔 50, 50とその間 に配された内筒 42の内側に不図示のボルトを揷通させてナット 52で締め付けること により、第 1筒状部 14と第 2筒状部 16がアーム部 12を介して連設される。  As shown in FIGS. 6 and 7, the arm portion 12 has one end portion 12 a fixed to the outer peripheral surface of the first cylindrical portion 14 by welding. On the other hand, at the other end of the arm portion 12, a pair of flat support arms 48, 48 sandwiching both axial end surfaces of the inner cylinder 42 of the vibration isolating bush 20 mounted in the second cylindrical portion 16. Is provided. The pair of support arms 48, 48 are extended in parallel to each other from the first cylindrical portion 14 toward the front of the vehicle, and through holes 50, 50 in the vehicle width direction are provided at the front end portions, respectively. Then, a bolt (not shown) is passed through the through holes 50, 50 of the pair of support arms 48, 48 and the inner cylinder 42 disposed therebetween, and tightened with a nut 52, whereby the first cylindrical portion 14 And the second cylindrical portion 16 are connected via the arm portion 12.
[0028] 図 9に示すように、第 2筒状部 16の外周面には、エンジン 1への取付用のブラケット 54が溶接により固着されている。ブラケット 54は、エンジン 1の後面に締結するため の上方に延びる第 1固定部 56と、エンジン 1の下端部側面に締結するための前方に 延びる第 2固定部 58とを備え、図 1に示すように、これらの固定部 56, 58がボルト 60 を用いてエンジン 1に固定されている。一方、車体 2側については、車体 2の取付凹 部 3内にて、第 1筒状部 14に装着された防振ブッシュ 18の内筒 26が、その内部に挿 通されたボルト 62を用いて車体 2に固定されている。  As shown in FIG. 9, a bracket 54 for attachment to the engine 1 is fixed to the outer peripheral surface of the second tubular portion 16 by welding. The bracket 54 includes a first fixing portion 56 that extends upward to fasten to the rear surface of the engine 1 and a second fixing portion 58 that extends forward to fasten to the side surface of the lower end of the engine 1, as shown in FIG. As described above, these fixing portions 56 and 58 are fixed to the engine 1 using bolts 60. On the other hand, on the vehicle body 2 side, in the mounting recess 3 of the vehicle body 2, the inner cylinder 26 of the vibration isolating bush 18 attached to the first cylindrical portion 14 is used with a bolt 62 inserted therein. Is fixed to the vehicle body 2.
[0029] 以上において、本実施形態では、図 1に示すように、第 2筒状部 16の軸 24が、第 1 筒状部 14の軸方向における中心 64 (即ち、第 1筒状部 14を軸方向に二等分する点 )に対して、同一水平面上ではなぐこれよりも下方にずれた位置に配されており、即 ち、第 2筒状部 16は第 1筒状部 14の軸方向における中心面力も当該軸方向にオフ セットさせて配置されている。この実施形態では、第 1筒状部 14とその内側の内筒 26 とが同軸であり、また、第 2筒状部 16とその内側の内筒 42とが同軸であるため、第 2 筒状部 16側の内筒 42が第 1筒状部 14側の内筒 26の軸方向中心 64に対して下方 にオフセットして配されている。なお、下方にオフセットさせるために、上記アーム部 1 2の一対の支持腕 48, 48が前端側ほど下方に傾斜して延びている。  In the above, in the present embodiment, as shown in FIG. 1, the shaft 24 of the second cylindrical portion 16 is the center 64 in the axial direction of the first cylindrical portion 14 (that is, the first cylindrical portion 14 The second cylindrical portion 16 is arranged at a position shifted downward from this point on the same horizontal plane. The central surface force in the axial direction is also offset in the axial direction. In this embodiment, the first cylindrical part 14 and the inner cylinder 26 inside thereof are coaxial, and the second cylindrical part 16 and the inner cylinder 42 inside thereof are coaxial, so that the second cylindrical part The inner cylinder 42 on the part 16 side is arranged offset downward with respect to the axial center 64 of the inner cylinder 26 on the first cylindrical part 14 side. In addition, in order to offset downward, the pair of support arms 48, 48 of the arm portion 12 extend obliquely downward toward the front end side.
[0030] このようにオフセットさせたことにより、リンク装置 10周りの空間を有効活用すること ができる。すなわち、エンジン 1と車体 2との配置関係から、図 1に示すようにエンジン 1側での連結部が車体 2側での連結部よりも低 、位置に設定された場合でも、本リン ク装置 10であれば、連結位置を別途調整しなくても、そのまま結合することができ、 省スペース化が図られる。 [0030] By offsetting in this way, the space around the link device 10 can be used effectively. That is, from the arrangement relationship between the engine 1 and the vehicle body 2, the engine is Even if the connecting part on the 1 side is set lower than the connecting part on the vehicle body 2 side, the link device 10 can be connected as it is without adjusting the connecting position separately. This saves space.
[0031] また、本実施形態では、第 1筒状部 14側の防振ブッシュ 18において、上記反ァー ム部側の空洞部 34に設けられたストツバゴム部 38は、下方ほど突出高さが高くなるよ うに内筒 26側へのあたり面 38aが傾斜して設けられている。詳細には、ストッパゴム 部 38は、あたり面 38aがー面で形成されており、このあたり面 38aが相対するゴム層 4 0と平行ではなく、下方ほどゴム層 40に接近するように傾斜している。  Further, in the present embodiment, in the vibration isolating bush 18 on the first cylindrical portion 14 side, the strut rubber portion 38 provided in the cavity portion 34 on the anti-arm portion side has a projecting height toward the lower side. The contact surface 38a toward the inner cylinder 26 side is provided so as to be inclined. Specifically, the stopper rubber portion 38 has a contact surface 38a formed as a negative surface, and the contact surface 38a is not parallel to the opposing rubber layer 40, but is inclined so as to approach the rubber layer 40 downward. ing.
[0032] また、図 1, 5に示されるように、このストッパゴム部 38には軸方向の小空洞(すぐり) 66が設けられている。小空洞 66は、ストッパゴム部 38を軸方向に貫通して設けられ ており、図 2に示すように周方向に 2つ並んで設けられている。なお、小空洞 66は、こ のような軸方向の貫通孔には限らず、非貫通の凹部であってもよい。このような小空 洞 66を設けたことにより、ストッパゴム部 38による静バネ定数を維持したまま、動パネ 定数を低減することができ、乗り心地性を向上することができる。  As shown in FIGS. 1 and 5, the stopper rubber portion 38 is provided with a small cavity (straight) 66 in the axial direction. The small cavities 66 are provided so as to penetrate the stopper rubber portion 38 in the axial direction, and two small cavities 66 are provided side by side in the circumferential direction as shown in FIG. The small cavity 66 is not limited to such an axial through hole, and may be a non-through recess. By providing such a small cavity 66, the dynamic panel constant can be reduced while maintaining the static spring constant by the stopper rubber portion 38, and the ride comfort can be improved.
[0033] また、本実施形態では、図 1, 7に示すように、第 1筒状部 14には、下端部における 反アーム部側の周方向部分が切り欠かれることで切欠部 68が設けられている。この 切欠部 68は、第 1筒状部 14の半円周分にわたって設けられている。  In the present embodiment, as shown in FIGS. 1 and 7, the first cylindrical portion 14 is provided with a notch 68 by notching the circumferential portion on the side opposite to the arm at the lower end. It has been. The notch 68 is provided over the semicircular portion of the first cylindrical portion 14.
[0034] そして、このように切欠部 68を設けたことにより、その内側に嵌着される防振ブッシ ュ 18において、外筒 28は切欠量に相当する軸方向寸法だけ下端側が短く形成され ている。そのため、内筒 26と外筒 28との軸方向中心がオフセットされるように両筒 26 , 28が形成されている。すなわち、外筒 28の軸方向における中心 70が、内筒 26の 軸方向における中心 64 (第 1筒状部 14の軸方向における中心と同じ)に対して上方 にずれている。このように内筒 26と外筒 28とをオフセットさせたことにより、ゴム弾性体 30の軸方向寸法を確保することができる。上記のように切欠部 68を設けた場合に、 内筒 26と外筒 28とをオフセットさせないとすると、外筒 28の上端側も短くする必要が あり、その場合、外筒 28の軸方向寸法が短くなつて、ゴム弾性体 30の軸方向寸法を 十分に確保することが難しくなるが、このようにオフセットさせれば、外筒 28の上端側 での軸方向寸法を確保して、その分ゴム弾性体 30の軸方向寸法を確保することがで きる。 [0034] By providing the notch 68 in this manner, the lower end side of the outer cylinder 28 is formed shorter by an axial dimension corresponding to the amount of the notch in the vibration isolating bush 18 fitted inside. Yes. Therefore, both cylinders 26 and 28 are formed so that the axial centers of the inner cylinder 26 and the outer cylinder 28 are offset. That is, the center 70 in the axial direction of the outer cylinder 28 is shifted upward with respect to the center 64 in the axial direction of the inner cylinder 26 (the same as the center in the axial direction of the first cylindrical portion 14). By offsetting the inner cylinder 26 and the outer cylinder 28 in this manner, the axial dimension of the rubber elastic body 30 can be ensured. If the inner tube 26 and the outer tube 28 are not offset when the notch 68 is provided as described above, the upper end side of the outer tube 28 also needs to be shortened. However, if the offset is made in this way, the axial dimension on the upper end side of the outer cylinder 28 is secured, and accordingly, it becomes difficult to secure a sufficient axial dimension of the rubber elastic body 30. It is possible to secure the axial dimension of the rubber elastic body 30. wear.
[0035] このように外筒 28を内筒 26に対してオフセットさせた防振ブッシュ 18では、第 1筒 状部 14に圧入する際に装着方向を間違うと性能を確保することができない。そのた め、本実施形態では、図 2, 3に示すように、ゴム弾性体 30の軸方向における一方の 側面 (ここでは上面)に識別用凸部 72を設けている。識別用凸部 72は、ゴム弾性体 3 0の上記左右部分 30a, 30aにおいて周方向に延びる湾曲線状に設けられており、 防振ブッシュ 18の表裏を容易に識別できるようになって!/、る。  With the vibration isolating bush 18 in which the outer cylinder 28 is offset with respect to the inner cylinder 26 in this way, performance cannot be ensured if the mounting direction is wrong when press-fitting into the first cylindrical portion 14. Therefore, in this embodiment, as shown in FIGS. 2 and 3, an identification protrusion 72 is provided on one side surface (here, the upper surface) of the rubber elastic body 30 in the axial direction. The identification convex portion 72 is provided in a curved line extending in the circumferential direction in the left and right portions 30a, 30a of the rubber elastic body 30 so that the front and back of the vibration isolating bush 18 can be easily identified! /
[0036] 以上よりなるリンク装置 10を組み付ける際には、第 1筒状部 14を車体 2に取り付け るとともに、第 2筒状部 16をエンジン 1に取り付けておく。その際、第 1筒状部 14につ いては、ボルト 62を用いて内筒 26を車体 2の取付凹部 3に固定し、第 2筒状部 16に ついては、ボルト 60を用いてブラケット 54をエンジン 1に固定する。その後、第 2筒状 部 16を取り付けたエンジン 1を車体 2に対して上方力も搭載して、アーム部 12の一対 の支持腕 48間に第 2筒状部 16側の内筒 42を挿入し、不図示のボルトを用いてこれ らを結合させることにより、リンク装置 10を介してエンジン 1と車体 2が連結される。こ のようにリンク装置 10を分割式にして組み付けるようにしたので、第 1筒状部 14と第 2 筒状部 16をそれぞれ車体 2やエンジン 1に固定する作業はエンジンを車体に搭載前 の広 、作業スペースで実施することができ、組付け作業性に優れる。  When assembling the link device 10 configured as described above, the first tubular portion 14 is attached to the vehicle body 2 and the second tubular portion 16 is attached to the engine 1. At that time, for the first cylindrical part 14, the inner cylinder 26 is fixed to the mounting recess 3 of the vehicle body 2 using the bolt 62, and for the second cylindrical part 16, the bracket 54 is fixed using the bolt 60. Secure to engine 1. Thereafter, the engine 1 with the second cylindrical portion 16 attached is also mounted with an upward force on the vehicle body 2, and the inner cylinder 42 on the second cylindrical portion 16 side is inserted between the pair of support arms 48 of the arm portion 12. The engine 1 and the vehicle body 2 are connected via the link device 10 by connecting them using bolts (not shown). Since the link device 10 is assembled in such a manner as described above, the work for fixing the first cylindrical portion 14 and the second cylindrical portion 16 to the vehicle body 2 and the engine 1 respectively is performed before the engine is mounted on the vehicle body. It can be carried out in a wide work space and has excellent assembly workability.
[0037] また、上記のように第 1筒状部 14と第 2筒状部 16をオフセットして配置した場合、図 1に示すように、エンジン 1のロール方向の振動により、第 2筒状部 16に矢印 Xで示す ように車両前方に引っ張る力が作用したとき、第 1筒状部 14には矢印 Yで示すように 反アーム部側が下方にお辞儀をするようにこじれ方向(回転方向)に変位しょうとする 力が働く。力かるこじれ方向への変位は、軸方向の小空洞 66が潰れない程度の力が 作用して 、る領域内であればそれほど問題にはならな!、が、該小空洞 66が潰れ更 なる力が作用するような圧縮限界領域では、突如としてこじれ方向への変位が大きく なって第 1筒状部 14が車体 2の底板 4に干渉するという不具合が生じるという現象が 見られた。そこで、上記のように本実施形態では、ストッパゴム部 38のあたり面 38aを 傾斜させている。これにより、ストッパゴム部 38の圧縮時に、軸方向下方側でのゴム 量が多いために、矢印 Yで示すこじれ方向に変位しにくぐ圧縮限界領域でのこじれ 変位を抑えることができる。また、こじれ方向に変位した場合にも、第 1筒状部 14の反 アーム部側の下端部に切欠部 68を設けたので、第 1筒状部 14が車体 2の底板 4に 干渉することを確実に防止することができる。 [0037] Further, when the first cylindrical portion 14 and the second cylindrical portion 16 are arranged offset as described above, the second cylindrical shape is caused by vibration in the roll direction of the engine 1, as shown in FIG. When a pulling force is applied to the part 16 as indicated by the arrow X, the first tubular part 14 is twisted in the direction of the twist (rotation direction) so that the opposite arm side bows downward as indicated by the arrow Y. The force that tries to displace is applied. The displacement in the direction of force is not so much a problem as long as the small cavity 66 in the axial direction does not collapse, and it does not matter so much in the area! However, the small cavity 66 collapses further In the compression limit region where the force acts, a phenomenon that the first cylindrical portion 14 interferes with the bottom plate 4 of the vehicle body 2 suddenly increases in the displacement in the twisting direction is observed. Therefore, as described above, in the present embodiment, the contact surface 38a of the stopper rubber portion 38 is inclined. As a result, when the stopper rubber part 38 is compressed, the amount of rubber on the lower side in the axial direction is large, so that it is twisted in the compression limit region that is difficult to displace in the twisting direction indicated by the arrow Y. Displacement can be suppressed. In addition, even when displaced in the twisting direction, the first cylindrical portion 14 interferes with the bottom plate 4 of the vehicle body 2 because the notched portion 68 is provided at the lower end portion of the first cylindrical portion 14 on the opposite arm side. Can be reliably prevented.
[0038] 図 10は、第 2の実施形態を示すものである。この実施形態では、第 1筒状部 14〖こ 装着される防振ブッシュ 18において、反アーム部側の空洞部 34に、内筒 26の外周 面から半径方向外方に向けて突出するストッパゴム部 74が設けられている。このスト ツバゴム部 74は、アーム部 12の長手方向に沿う方向の入力に対して、相対向する外 筒 28側のストツバ受けゴム部 76に当接することで、外筒 26の過大変位を制限するも のであり、ストッパ受けゴム部 76に当接するあたり面 74aを備える。  FIG. 10 shows a second embodiment. In this embodiment, in the anti-vibration bush 18 attached to the first cylindrical portion 14, the stopper rubber protrudes radially outward from the outer peripheral surface of the inner tube 26 into the cavity 34 on the side opposite to the arm portion. Part 74 is provided. The stubber rubber portion 74 abuts against the stubber receiving rubber portion 76 on the opposite outer cylinder 28 side with respect to the input in the longitudinal direction of the arm portion 12, thereby limiting excessive displacement of the outer cylinder 26. Therefore, a contact surface 74 a that abuts against the stopper receiving rubber portion 76 is provided.
[0039] このストッパゴム部 74は、下方ほど突出高さが高くなるように上記あたり面 74aが傾 斜して設けられている。すなわち、ストッパゴム部 74は、あたり面 74aがー面で形成さ れており、このあたり面 74aが相対する外筒側のストッパ受けゴム部 76の面と平行で はなぐ下方ほどストツバ受けゴム部 76に接近するように傾斜している。  [0039] The stopper rubber portion 74 is provided with the contact surface 74a inclined so that the protruding height increases toward the lower side. That is, the stopper rubber portion 74 is formed with a contact surface 74a having a negative surface, and the stopper surface rubber portion is located in the lower part of the contact surface 74a that is not parallel to the surface of the stopper receiving rubber portion 76 on the opposite outer cylinder side. Inclined to approach 76.
[0040] このように傾斜させたことにより、第 1の実施形態と同様、ストッパゴム部 74の圧縮時 に、軸方向下方側でのゴム量が多いために、こじれ方向に変位しにくぐ圧縮限界領 域でのこじれ変位を抑えることができる。  [0040] By tilting in this way, as in the first embodiment, when the stopper rubber portion 74 is compressed, the amount of rubber on the lower side in the axial direction is large, so that the compression is difficult to displace in the twisting direction. The twisting displacement in the limit area can be suppressed.
[0041] 第 2の実施形態に係るリンク装置のその他の構成は第 1の実施形態と同様であり、 従って同様の作用効果が奏される。  [0041] The other configuration of the link device according to the second embodiment is the same as that of the first embodiment, and therefore, the same operational effects are achieved.
[0042] 上記した各実施形態のリンク装置は、トランスミッション等を含むエンジンユニットを 車体に組み込んで防振マウントにより支持する場合に、エンジンユニットのロール方 向の動き又は振動を抑制するために、該ユニットの一部を車体に連結するトルクロッ ドとして使用されるものである。但し、本発明はこれに限られることなぐ車両のサスぺ ンシヨンのリンク機構などに用いられるリンク装置としても使用することができる。  [0042] The link device of each of the embodiments described above is provided to suppress movement or vibration of the engine unit in the roll direction when an engine unit including a transmission or the like is incorporated in a vehicle body and supported by a vibration isolation mount. It is used as a torque rod that connects a part of the unit to the vehicle body. However, the present invention is not limited to this and can also be used as a link device used in a link mechanism of a vehicle suspension.
産業上の実施可能性  Industrial feasibility
[0043] 本発明のリンク装置であると、アーム部の一端側の第 2筒状部を他端側の第 1筒状 部に関してオフセットさせて配置したことにより、リンク装置周りの空間を有効活用する ことができ、そのため、自動車用エンジンを車体に搭載し支持する場合のトルク支持 用のトルクロッドとして、あるいはまた自動車用サスペンションのリンク装置として好適 に使用することができる。 [0043] In the link device of the present invention, the second cylindrical portion on one end side of the arm portion is arranged offset with respect to the first cylindrical portion on the other end side, thereby effectively utilizing the space around the link device. Therefore, it is suitable as a torque rod for torque support when an automobile engine is mounted on and supported by a vehicle body, or as a link device for an automobile suspension. Can be used for
図面の簡単な説明  Brief Description of Drawings
[0044] [図 1]本発明の第 1の実施形態に係るリンク装置の組付け状態を示す断面図である。  FIG. 1 is a cross-sectional view showing an assembled state of a link device according to a first embodiment of the present invention.
[図 2]同上のリンク装置における第 1筒状部側の防振ブッシュの側面図である。  FIG. 2 is a side view of an anti-vibration bush on the first tubular portion side in the link device same as above.
[図 3]図 2の III III線の断面図である。  3 is a cross-sectional view taken along line III-III in FIG.
[図 4]図 2の IV— IV線の断面図である。  4 is a cross-sectional view taken along line IV-IV in FIG.
[図 5]図 2の V— V線の断面図である。  FIG. 5 is a cross-sectional view taken along line V—V in FIG.
[図 6]同上のリンク装置における第 1筒状部及びアーム部の平面図である。  FIG. 6 is a plan view of a first cylindrical portion and an arm portion in the link device same as above.
[図 7]同上の第 1筒状部及びアーム部の側面図である。  FIG. 7 is a side view of the first tubular part and the arm part of the above.
[図 8]同上のリンク装置における第 2筒状部側の防振ブッシュの断面図である。  FIG. 8 is a cross-sectional view of an anti-vibration bush on the second cylindrical portion side in the above-mentioned link device.
[図 9]同上の第 2筒状部及びブラケットの側面図である。  FIG. 9 is a side view of the second cylindrical portion and the bracket.
[図 10]第 2の実施形態に係るリンク装置の第 1筒状部及びアーム部の断面図である。 符号の説明  FIG. 10 is a cross-sectional view of a first tubular portion and an arm portion of a link device according to a second embodiment. Explanation of symbols
[0045] 1…エンジン、 2…車体、 10· ··リンク装置、 12· ··アーム部、 14· ··第 1筒状部、 16…第 2筒状部、 18, 20…防振ブッシュ、 22…第 1筒状部の軸、 24…第 2筒状部の軸、 26 …内筒、 28· ··外筒、 30· ··ゴム弾性体、 34· ··空洞部、 38· ··ストッパゴム部、 38a…あ たり面、 42· ··内筒、 44…外筒、 46· ··ゴム弾性体、 48· ··支持腕、 64· ··第 1筒状部の 軸方向における中心、 66· ··小空洞、 68· ··切欠部、 70· ··外筒の軸方向における中 心、 72…識別用凸部、 74…ストツバゴム部、 74a…あたり面  [0045] 1 ... engine, 2 ... vehicle body, 10 ... link device, 12 ... arm part, 14 ... 1st cylindrical part, 16 ... 2nd cylindrical part, 18, 20 ... anti-vibration bush 22 ... Axis of the first cylindrical part, 24 ... Axis of the second cylindrical part, 26 ... Inner cylinder, 28 ... Outer cylinder, 30 ... Rubber elastic body, 34 ... Cavity part, 38 ... · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ···························································································· Center in the direction, 66 ··· Small cavity, 68 ··· Notch, 70 ··· Center in the axial direction of the outer cylinder, 72 ... Identification convex portion, 74 ... Stubber rubber portion, 74a ... Contact surface

Claims

請求の範囲 The scope of the claims
[1] アーム部と、  [1] Arm part,
該アーム部の両端部に設けられた第 1筒状部及び第 2筒状部と、  A first cylindrical portion and a second cylindrical portion provided at both ends of the arm portion;
これら筒状部の内部にそれぞれ装着されるものであって、筒状部に軸平行に配さ れた内筒と、該内筒を各筒状部に対して弾性的に保持するゴム弾性体を備える防振 ブッシュと、  An inner cylinder arranged in parallel to the cylindrical portion, and a rubber elastic body that elastically holds the inner cylinder with respect to each cylindrical portion. An anti-vibration bush comprising:
を備えてなるリンク装置において、  In a link device comprising:
前記第 1筒状部と前記第 2筒状部は、それぞれの軸に垂直な平面が互いに直交す るよう設けられるとともに、第 2筒状部の軸が第 1筒状部の軸方向における中心に対し てずれた位置に配されたことを特徴とするリンク装置。  The first cylindrical portion and the second cylindrical portion are provided such that planes perpendicular to the respective axes are orthogonal to each other, and the axis of the second cylindrical portion is the center in the axial direction of the first cylindrical portion. Link device characterized by being arranged at a position shifted with respect to.
[2] 前記第 1筒状部の内部に装着された前記防振ブッシュにおいて、前記ゴム弾性体 には、前記内筒を挟んでアーム部側と反アーム部側にそれぞれ空洞部が形成され、 これら空洞部間の前記ゴム弾性体の両側部分が前記内筒を前記第 1筒状部に対し て弾性的に保持していることを特徴とする請求項 1記載のリンク装置。  [2] In the anti-vibration bush attached to the inside of the first cylindrical portion, the rubber elastic body has a hollow portion formed on each of the arm portion side and the non-arm portion side with the inner tube interposed therebetween, 2. The link device according to claim 1, wherein both side portions of the rubber elastic body between the hollow portions elastically hold the inner cylinder with respect to the first cylindrical portion.
[3] 前記反アーム部側の空洞部には前記第 1筒状部の内周面側力 半径方向内方に 向けて突出するストツバゴム部が設けられ、該ストツバゴム部は前記第 1筒状部の軸 方向において前記第 2筒状部がずらされた側ほど突出高さが高くなるように内筒側 へのあたり面が傾斜して設けられたことを特徴とする請求項 2記載のリンク装置。  [3] The hollow portion on the side opposite to the arm portion is provided with a stubber rubber portion that protrudes inward in the radial direction of the inner peripheral surface side force of the first cylindrical portion, and the stubber rubber portion is the first cylindrical portion. 3. The link device according to claim 2, wherein the contact surface toward the inner cylinder side is provided so as to be inclined so that the protruding height is higher toward the side where the second cylindrical portion is shifted in the axial direction of .
[4] 前記反アーム部側の空洞部には前記内筒の外周面側から半径方向外方に向けて 突出するストツバゴム部が設けられ、該ストツバゴム部は前記第 1筒状部の軸方向に おいて前記第 2筒状部がずらされた側ほど突出高さが高くなるように第 1筒状部側へ のあたり面が傾斜して設けられたことを特徴とする請求項 2記載のリンク装置。  [4] The hollow portion on the side opposite to the arm portion is provided with a stubber rubber portion projecting radially outward from the outer peripheral surface side of the inner cylinder, and the stubber rubber portion is provided in the axial direction of the first cylindrical portion. 3. The link according to claim 2, wherein a contact surface toward the first tubular portion side is inclined so that a protruding height increases toward a side where the second tubular portion is shifted. apparatus.
[5] 前記ストツバゴム部には軸方向の小空洞が設けられたことを特徴とする請求項 3又 は 4記載のリンク装置。  5. The link device according to claim 3 or 4, characterized in that a small cavity in the axial direction is provided in the stock rubber part.
[6] 前記第 1筒状部は、前記第 2筒状部がずらされた側の軸方向端部において反ァー ム部側の周方向部分が切り欠かれたことを特徴とする請求項 1記載のリンク装置。  6. The first cylindrical portion is characterized in that a circumferential portion on the side opposite to the arm portion is cut out at an axial end portion on a side where the second cylindrical portion is shifted. The link device according to 1.
[7] 前記第 1筒状部の内部に装着された前記防振ブッシュは、前記第 1筒状部の内周 面に嵌合される外筒を備えて、該外筒と前記内筒とが前記ゴム弾性体により結合さ れており、前記外筒の軸方向における中心が前記内筒の軸方向における中心に対 して前記第 2筒状部がずらされた側とは反対側にずれていることを特徴とする請求項 6記載のリンク装置。 [7] The anti-vibration bush attached to the inside of the first cylindrical part includes an outer cylinder fitted to an inner peripheral surface of the first cylindrical part, and the outer cylinder, the inner cylinder, Is bonded by the rubber elastic body. The center in the axial direction of the outer cylinder is shifted to the opposite side to the side from which the second cylindrical portion is shifted with respect to the center in the axial direction of the inner cylinder. Item 6. The link device according to item 6.
[8] 前記ゴム弾性体の軸方向における一方の側面に識別用凸部が設けられたことを特 徴とする請求項 7記載のリンク装置。  8. The link device according to claim 7, wherein an identification convex portion is provided on one side surface in the axial direction of the rubber elastic body.
[9] 前記アーム部は、その一端部が前記第 1筒状部の外周面に固着されるとともに、他 端部には前記第 2筒状部内に装着された前記防振ブッシュの前記内筒の軸方向両 端面を挟持する一対の支持腕が設けられ、該一対の支持腕とその間に配された内 筒の内側にボルトを挿通させて締結することにより、前記第 1筒状部と前記第 2筒状 部が前記アーム部を介して連設されることを特徴とする請求項 1記載のリンク装置。  [9] One end portion of the arm portion is fixed to the outer peripheral surface of the first tubular portion, and the other end portion of the inner tube of the vibration isolating bush mounted in the second tubular portion. A pair of support arms are provided to sandwich both end surfaces in the axial direction of the first cylindrical portion, and a bolt is inserted and fastened to the inside of the pair of support arms and the inner cylinder disposed between the pair of support arms. 2. The link device according to claim 1, wherein the second cylindrical part is continuously provided via the arm part.
[10] 前記第 1筒状部側が車体に、前記第 2筒状部側がエンジンに、それぞれ結合され て、エンジンのロール方向の動きを抑制するものである請求項 1記載のリンク装置。  10. The link device according to claim 1, wherein the first tubular portion side is coupled to the vehicle body, and the second tubular portion side is coupled to the engine, respectively, to suppress the movement of the engine in the roll direction.
[11] 前記第 1筒状部がその軸を車両上下方向に向けて設けられ、前記第 2筒状部がそ の軸を車両幅方向に向けて設けられ、前記第 2筒状部の軸が前記第 1筒状部の軸 方向における中心に対して下方にずれた位置に配されたことを特徴とする請求項 10 記載のリンク装置。  [11] The first cylindrical portion is provided with its axis directed in the vehicle vertical direction, the second cylindrical portion is provided with its axis oriented in the vehicle width direction, and the axis of the second cylindrical portion 11. The link device according to claim 10, wherein is arranged at a position shifted downward with respect to the center of the first cylindrical portion in the axial direction.
PCT/JP2004/019543 2004-12-27 2004-12-27 Link device WO2006070440A1 (en)

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JP2009068619A (en) * 2007-09-14 2009-04-02 Toyo Tire & Rubber Co Ltd Vibration control bush
JP2012007716A (en) * 2010-06-28 2012-01-12 Kurashiki Kako Co Ltd Vibration control device
WO2015121567A1 (en) 2014-02-17 2015-08-20 Peugeot Citroen Automobiles Sa Device for the suspension of a power train of a motor vehicle

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JP5825025B2 (en) * 2011-10-03 2015-12-02 住友電気工業株式会社 Bearings for anti-rolling equipment of railway vehicles

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WO2002025138A1 (en) * 2000-09-20 2002-03-28 Toyo Tire & Rubber Co., Ltd. Vibration isolator
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JPS61160635A (en) * 1984-12-31 1986-07-21 Yamashita Rubber Kk Vibro-isolating rubber device
JPH07167184A (en) * 1993-12-15 1995-07-04 Bridgestone Corp Vibration control device
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JP2009068619A (en) * 2007-09-14 2009-04-02 Toyo Tire & Rubber Co Ltd Vibration control bush
JP2012007716A (en) * 2010-06-28 2012-01-12 Kurashiki Kako Co Ltd Vibration control device
WO2015121567A1 (en) 2014-02-17 2015-08-20 Peugeot Citroen Automobiles Sa Device for the suspension of a power train of a motor vehicle
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