JP2008002615A - Torque rod - Google Patents

Torque rod Download PDF

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Publication number
JP2008002615A
JP2008002615A JP2006173901A JP2006173901A JP2008002615A JP 2008002615 A JP2008002615 A JP 2008002615A JP 2006173901 A JP2006173901 A JP 2006173901A JP 2006173901 A JP2006173901 A JP 2006173901A JP 2008002615 A JP2008002615 A JP 2008002615A
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pair
connecting portion
torque rod
bushes
metal plate
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Japanese (ja)
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Makoto Kawase
誠 川瀬
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Hosei Brake Industry Co Ltd
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Hosei Brake Industry Co Ltd
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Priority to JP2006173901A priority Critical patent/JP2008002615A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide the torque rod by which the component parts can be drastically reduced and which can correspond to each car type easily even if the setting length to every type car differs moreover. <P>SOLUTION: In the torque rod 22 in which rubber elastomers 34, 40 are interposed between an inner tubes 30, 36 and an outer tubes 32, 38 and which has a pair of bushes 24, 26 attached to a car engine side and a car body side, and the connection part 28 connecting the pair of bushes 24, 26, the outer tubes 32, 38 of the pair of bushes 24, 26 and the connection part 28 are integrated by press forming a sheet of an annular metal plate and connected by spot welding in the connection part 28. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、車両のエンジンの防振金具として使用されるトルクロッドに関する。   The present invention relates to a torque rod used as a vibration isolator for a vehicle engine.

一般にトルクロッドは、内筒と外筒との間にゴム弾性体が介装され、車両のエンジン側と車体側に取り付けられる一対のブッシュと、これら一対のブッシュを連結する連結ロッドとを有し、車両のエンジン側と車体側とに跨って介装され、エンジンのロール方向及び前後方向の変位を規制し、併せてエンジン側と車体側との振動絶縁を行うようになっている。   Generally, the torque rod has a pair of bushes attached to the engine side and the vehicle body side of a vehicle, and a connecting rod that connects the pair of bushes, with a rubber elastic body interposed between an inner cylinder and an outer cylinder. It is interposed between the engine side and the vehicle body side of the vehicle, regulates the displacement of the engine in the roll direction and the front-rear direction, and also performs vibration isolation between the engine side and the vehicle body side.

このようなトルクロッドにおいては、連結ロッドを外筒とは別に製造して溶接接合することが必要であり、構成部品点数が多くなり、加工工数が多く、コスト高になってしまうこととなる。   In such a torque rod, it is necessary to manufacture and weld the connecting rod separately from the outer cylinder, which increases the number of components, increases the number of processing steps, and increases the cost.

そのため、連結部を板状に形成し、その両端部に外筒を一体に形成することにより、加工の工程数を少なくして、コストを安価にする提案もなされている（特許文献１参照）。
特開２００５−１６３８４３号公報 Therefore, a proposal has been made to reduce the number of processing steps and reduce the cost by forming the connecting portion in a plate shape and integrally forming the outer cylinder at both ends thereof (see Patent Document 1). .
JP 2005-163843 A

このようなトルクロッドにあっては、各車種ごとに取付け長さが異なる場合、長さの異なるトルクロッドを新設しなければならないという問題があった。   In such a torque rod, when the installation length is different for each vehicle type, there is a problem that a torque rod having a different length must be newly provided.

また、連結部を板状に形成し、その両端部に外筒を一体に形成した一対の金属板を用いるようにしているため、少なくとも２部品が必要であった。   In addition, since the connecting portion is formed in a plate shape and a pair of metal plates in which outer cylinders are integrally formed at both ends thereof, at least two parts are required.

本発明の目的は、構成部品の大幅な削減が可能で、しかも、各車種ごとに取付け長さが異なる場合であっても、容易に各車種に対応することのできるトルクロッドを提供することにある。   An object of the present invention is to provide a torque rod that can greatly reduce the number of components and can easily cope with each vehicle type even when the mounting length is different for each vehicle type. is there.

前記目的を達成するため、本発明のトルクロッドは、内筒と外筒との間にゴム弾性体が介装され、車両のエンジン側と車体側に取り付けられる一対のブッシュと、これら一対のブッシュを連結する連結部とを有するトルクロッドにおいて、
前記一対のブッシュの外筒と連結部とは、一枚の環状金属板をプレス成形して一体に形成され、前記連結部においてスポット溶接により接合されることを特徴とする。 In order to achieve the above object, a torque rod according to the present invention includes a pair of bushes mounted on the engine side and the vehicle body side of a vehicle, with a rubber elastic body interposed between the inner cylinder and the outer cylinder, and the pair of bushes. A torque rod having a connecting portion for connecting
The outer cylinder and the connecting portion of the pair of bushes are integrally formed by press-molding a single annular metal plate, and are joined by spot welding at the connecting portion.

本発明によれば、一枚の環状金属板をプレス成形して、一対の外筒と連結部とを一体に形成しすることで、構成部品の大幅な削減ができ、しかも、連結部をスポット溶接にて接合することで、簡単な治具で加工ができて、生産性が向上し、さらには、各車種ごとに外筒の径や取付け長さが異なる場合であっても、柔軟に対応が可能となり、原価低減を図ることができる。   According to the present invention, a single annular metal plate is press-formed, and the pair of outer cylinders and the connecting portion are integrally formed, so that the number of components can be greatly reduced, and the connecting portion is spotted. By joining by welding, it is possible to process with a simple jig, improving productivity, and even flexibly responding even when the outer cylinder diameter and installation length differ for each model This makes it possible to reduce costs.

本発明においては、前記環状金属板は、前記連結部形成位置が幅広部として形成され、前記環状金属板のプレス成形時に前記幅広部を両側部を曲折して前記連結部に補強フランジ形成することができる。   In the present invention, the annular metal plate has the connecting portion forming position formed as a wide portion, and when the annular metal plate is press-molded, the wide portion is bent at both sides to form a reinforcing flange at the connecting portion. Can do.

このような構成とすることにより、幅広部を曲折して連結部に補強フランジを形成することで、容易に連結部の補強を行うことができる。   By setting it as such a structure, a connection part can be easily reinforced by bending a wide part and forming a reinforcement flange in a connection part.

以下、本発明の実施の形態について、図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１〜図３は、本発明の一実施の形態にかかるトルクロッドを示す図である。   1 to 3 are views showing a torque rod according to an embodiment of the present invention.

図１は、本実施の形態にかかるトルクロッドの車両への取付け状態を示す斜視図で、この車両は車体側に取り付けられたサスペンションメンバ１０上に、エンジンマウント１２を介して、エンジン１４及びトランスミッション１６を含むパワーユニット１８が弾性支持された状態となっている。   FIG. 1 is a perspective view showing a state in which a torque rod according to the present embodiment is attached to a vehicle. This vehicle has an engine 14 and a transmission mounted on a suspension member 10 attached to the vehicle body side via an engine mount 12. The power unit 18 including 16 is elastically supported.

そして、エンジン１４の下部と、サスペンションメンバ１０のセンターフレーム２０とに跨ってトルクロッド２２が取り付けられている。   A torque rod 22 is attached across the lower part of the engine 14 and the center frame 20 of the suspension member 10.

このトルクロッド２２は、一対の大小のブッシュ２４、２６と、これらのブッシュ２４、２６を連結する連結部２８とを有し、大きなブッシュ２４がセンターフレーム２０に取り付けられ、小さなブッシュ２６がエンジン１４の下部に取り付けられるようになっている。   The torque rod 22 has a pair of large and small bushes 24, 26 and a connecting portion 28 that connects the bushes 24, 26. The large bush 24 is attached to the center frame 20, and the small bush 26 is the engine 14. It can be attached to the bottom of the.

このトルクロッド２２の詳細を、図２の拡大斜視図に基づいて説明する。   Details of the torque rod 22 will be described based on an enlarged perspective view of FIG.

大きなブッシュ２４は、内筒３０と外筒３２との間に円筒状のゴム弾性体３４が介装され、それらが加硫接着により一体化された状態となっており、内筒３０がセンターフレーム２０にボルト・ナットで締結固定されて大きなブッシュ２４がセンターフレーム２０に弾性的に結合された状態となっている。   In the large bush 24, a cylindrical rubber elastic body 34 is interposed between the inner cylinder 30 and the outer cylinder 32, and these are integrated by vulcanization adhesion. The large bush 24 is fastened and fixed to the center frame 20 by a bolt and a nut, and is elastically coupled to the center frame 20.

小さなブッシュ２６は、内筒３６と外筒３８との間に円筒状のゴム弾性体４０が介装され、それらが加硫接着により一体化された状態となっており、内筒３６がエンジン１４にボルト・ナットで締結固定されて、小さなブッシュ２６がエンジン１４に弾性的に結合された状態となっている。   In the small bush 26, a cylindrical rubber elastic body 40 is interposed between the inner cylinder 36 and the outer cylinder 38, and these are integrated by vulcanization adhesion. The small bush 26 is elastically coupled to the engine 14 by fastening with bolts and nuts.

連結部２８は、大きなブッシュ２４の外筒３２及び小さなブッシュ２６の外筒３８と一体に曲折形成されている。   The connecting portion 28 is bent integrally with the outer cylinder 32 of the large bush 24 and the outer cylinder 38 of the small bush 26.

具体的には、大きなブッシュ２４の外筒３２及び小さなブッシュ２６の外筒３８と連結部２８とは、図３に示すような一枚の環状金属板４２をプレス成形して、図４に示すように、一対の外筒３２、３８と連結部２８とが一体に形成され、２枚の板が重ね合わされた連結部２８においてスポット溶接により接合されるようになっている。   Specifically, the outer cylinder 32 of the large bush 24 and the outer cylinder 38 of the small bush 26 and the connecting portion 28 are formed by press-molding a single annular metal plate 42 as shown in FIG. As described above, the pair of outer cylinders 32 and 38 and the connecting portion 28 are integrally formed, and are joined by spot welding at the connecting portion 28 in which two plates are overlapped.

このように、一枚の環状金属板４２をプレス成形して、一対の外筒３２、３８と連結部２８とを一体に形成しすることで、構成部品の大幅な削減ができ、しかも、連結部２８をスポット溶接にて接合することで、簡単な治具で加工ができて、生産性が向上し、さらには、各車種ごとに外筒３２、３８の径や取付け長さが異なる場合であっても、柔軟に対応が可能となり、原価低減を図ることができる。   In this way, by forming a single annular metal plate 42 and integrally forming the pair of outer cylinders 32, 38 and the connecting portion 28, the number of components can be greatly reduced. By joining the portion 28 by spot welding, it is possible to process with a simple jig, improving the productivity, and furthermore, when the diameter and mounting length of the outer cylinders 32 and 38 are different for each vehicle type. Even if it exists, it becomes possible to respond flexibly and reduce costs.

また、このプレス成形時に、各外筒３２、３８と連結部２８との境界部にリブ４４を形成して強度を高めるようにしている。   Further, at the time of the press molding, ribs 44 are formed at the boundary portions between the outer cylinders 32 and 38 and the connecting portion 28 so as to increase the strength.

図５及び図６には、本発明の他の実施の形態にかかるトルクロッドの一対の外筒と連結部を示す。   5 and 6 show a pair of outer cylinders and a connecting portion of a torque rod according to another embodiment of the present invention.

この実施の形態では、一対の外筒３２、３８間に位置する連結部２８の両側部に連結部２８と直交する方向に曲折形成された補強フランジ４６が形成されて、連結部２８の強度を向上させるようになっている。   In this embodiment, reinforcing flanges 46 that are bent in a direction orthogonal to the connecting portion 28 are formed on both sides of the connecting portion 28 located between the pair of outer cylinders 32, 38, thereby increasing the strength of the connecting portion 28. It is designed to improve.

この補強フランジ４６は、環状金属板の連結部２８形成位置が幅広部として形成され、環状金属板のプレス成形時に幅広部の両側部を曲折して連結部の両側部に一体に形成されるようになっている。   The reinforcing flange 46 is formed so that the connecting portion 28 of the annular metal plate is formed as a wide portion, and is formed integrally with both sides of the connecting portion by bending both sides of the wide portion during press forming of the annular metal plate. It has become.

他の構成及び作用は、前記実施の形態と同様につき、説明を省略する。   Other configurations and operations are the same as those in the above embodiment, and a description thereof will be omitted.

本発明は、前記実施の形態に限定されるものではなく、本発明の要旨の範囲内において、種々の形態に変形可能である。   The present invention is not limited to the embodiment described above, and can be modified into various forms within the scope of the gist of the present invention.

例えば、前記実施の形態においては、一対の外筒と連結部の境界部にリブを形成し、あるいは、連結部の両側部に補強フランジを形成するようにしているが、この例に限らず、一対の外筒と連結部の境界部から連結部全体にわたって連続したリブを形成するようにしてもよい。   For example, in the above embodiment, ribs are formed at the boundary between the pair of outer cylinders and the connecting portion, or reinforcing flanges are formed on both side portions of the connecting portion. You may make it form the rib which continued over the whole connection part from the boundary part of a pair of outer cylinder and a connection part.

本発明の一実施の形態にかかるトルクロッドの車両への取付け状態を示す斜視図である。It is a perspective view which shows the attachment state to the vehicle of the torque rod concerning one embodiment of this invention. 図１のトルクロッドの拡大斜視図である。It is an expansion perspective view of the torque rod of FIG. 図１及び図２のトルクロッドのの製造に用いる環状金属板を示す斜視図である。It is a perspective view which shows the cyclic | annular metal plate used for manufacture of the torque rod of FIG.1 and FIG.2. 図３の環状金属板をプレス成形した一対の外筒及び連結部を示す斜視図である。It is a perspective view which shows a pair of outer cylinder and connection part which press-molded the cyclic | annular metal plate of FIG. 本発明の他の実施の形態にかかるトルクロッドの一対の外筒及び連結部を示す斜視図である。It is a perspective view which shows a pair of outer cylinder and connection part of the torque rod concerning other embodiment of this invention. 図５のVI−VI線に沿う断面図である。It is sectional drawing which follows the VI-VI line of FIG.

符号の説明Explanation of symbols

１０ サスペンションメンバ
１４ エンジン
２０ センターフレーム
２２ トルクロッド
２４、２６ ブッシュ
２８ 連結部
３０、３６ 内筒
３２、３８ 外筒
３４、４０ ゴム弾性体
４２ 環状金属板
４４ リブ
４６ 補強フランジ DESCRIPTION OF SYMBOLS 10 Suspension member 14 Engine 20 Center frame 22 Torque rod 24, 26 Bush 28 Connection part 30, 36 Inner cylinder 32, 38 Outer cylinder 34, 40 Rubber elastic body 42 Annular metal plate 44 Rib 46 Reinforcement flange

Claims (2)

内筒と外筒との間にゴム弾性体が介装され、車両のエンジン側と車体側に取り付けられる一対のブッシュと、これら一対のブッシュを連結する連結部とを有するトルクロッドにおいて、
前記一対のブッシュの外筒と連結部とは、一枚の環状金属板をプレス成形して一体に形成され、前記連結部においてスポット溶接により接合されることを特徴とするトルクロッド。 In a torque rod having a rubber elastic body interposed between an inner cylinder and an outer cylinder and having a pair of bushes attached to the engine side and the vehicle body side of the vehicle, and a connecting portion for connecting the pair of bushes,
The outer rod and the connecting portion of the pair of bushes are integrally formed by press-molding a single annular metal plate, and are joined by spot welding at the connecting portion. 請求項１において、
前記環状金属板は、前記連結部形成位置が幅広部として形成され、前記環状金属板のプレス成形時に前記幅広部を両側部を曲折して前記連結部に補強フランジ形成することを特徴とするトルクロッド。 In claim 1,
The annular metal plate is characterized in that the connecting portion forming position is formed as a wide portion, and when the annular metal plate is press-molded, both sides of the wide portion are bent to form a reinforcing flange at the connecting portion. rod.
JP2006173901A 2006-06-23 2006-06-23 Torque rod Pending JP2008002615A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102575743A (en) * 2009-09-25 2012-07-11 株式会社普利司通 Torque rod
JP2013228002A (en) * 2012-04-24 2013-11-07 Toyo Tire & Rubber Co Ltd Bracket, and vibration-proof connecting rod

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578112U (en) * 1980-06-17 1982-01-16
JPS63117606U (en) * 1987-01-27 1988-07-29
JPH07117428A (en) * 1993-10-28 1995-05-09 Nissan Motor Co Ltd Link member of vehicle suspension

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578112U (en) * 1980-06-17 1982-01-16
JPS63117606U (en) * 1987-01-27 1988-07-29
JPH07117428A (en) * 1993-10-28 1995-05-09 Nissan Motor Co Ltd Link member of vehicle suspension

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102575743A (en) * 2009-09-25 2012-07-11 株式会社普利司通 Torque rod
JP2013228002A (en) * 2012-04-24 2013-11-07 Toyo Tire & Rubber Co Ltd Bracket, and vibration-proof connecting rod

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