JP4937093B2 - Connecting rod - Google Patents

Connecting rod Download PDF

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Publication number
JP4937093B2
JP4937093B2 JP2007311919A JP2007311919A JP4937093B2 JP 4937093 B2 JP4937093 B2 JP 4937093B2 JP 2007311919 A JP2007311919 A JP 2007311919A JP 2007311919 A JP2007311919 A JP 2007311919A JP 4937093 B2 JP4937093 B2 JP 4937093B2
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connecting plate
side walls
welded
cylindrical body
cylinder
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JP2009133463A (en
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普 前川
辰典 増田
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Toyo Tire Corp
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Toyo Tire and Rubber Co Ltd
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本発明は、
ロッド本体と、
前記ロッド本体の長手方向の端部に外周面が溶接固着された筒体と、
前記筒体に内装された防振ブッシュとを備え、
前記ロッド本体は、前記筒体の軸芯方向に沿う方向に開放した断面コの字状の連結板と、前記連結板を補強する補強板とから成り、
前記連結板の長手方向の端部を前記筒体の外周面に溶接固着し、
前記補強板の幅方向の両側部を前記連結板の両側壁に各別に溶接固着し、
前記補強板の長手方向の端部を前記筒体の外周面に溶接固着してある連結ロッドに関する。 The present invention
A rod body;
A cylindrical body whose outer peripheral surface is fixed by welding to the longitudinal end of the rod body;
An anti-vibration bush mounted on the cylinder,
The rod body is composed of a U-shaped connecting plate opened in a direction along the axial direction of the cylindrical body, and a reinforcing plate for reinforcing the connecting plate,
The welded and fixed end of the connecting plate in the longitudinal direction to the outer peripheral surface of the cylinder,
The both sides of the reinforcing plate in the width direction are welded and fixed separately to the both side walls of the connecting plate,
The present invention relates to a connecting rod in which an end in the longitudinal direction of the reinforcing plate is welded and fixed to the outer peripheral surface of the cylindrical body.

乗用車等の自動車に搭載されるエンジンは、通常、トランスミッション等を含めたユニットに構成されて車体に組み込まれ、防振マウントにより支持される。この際、エンジンユニットのロール方向の動きや振動を抑制するために、該ユニットの一部（主に下部）が車輌走行方向とは反対方向に延びるトルクロッドと称する連結ロッドにより車体に連結されている。   An engine mounted on an automobile such as a passenger car is usually configured as a unit including a transmission and the like, incorporated in a vehicle body, and supported by an anti-vibration mount. At this time, in order to suppress movement and vibration of the engine unit in the roll direction, a part (mainly the lower part) of the unit is connected to the vehicle body by a connecting rod called a torque rod extending in a direction opposite to the vehicle traveling direction. Yes.

従来、この種の連結ロッドでは、図６，図７に示すように、連結板３の長手方向一端部と補強板４の長手方向の一端部とを筒体１１の外周面１１Ｇに嵌合させて溶接固着してあった。符号１はロッド本体、１２は別の筒体、５０は溶接部である。   Conventionally, in this type of connecting rod, as shown in FIGS. 6 and 7, one end in the longitudinal direction of the connecting plate 3 and one end in the longitudinal direction of the reinforcing plate 4 are fitted to the outer peripheral surface 11 </ b> G of the cylindrical body 11. And welded. Reference numeral 1 is a rod body, 12 is another cylinder, and 50 is a welded portion.

上記の連結ロッドの筒体１１は軸芯方向Ｊの長さが短く設定されることがある。このような場合、筒体１１の外周面１１Ｇと連結板３の両側壁５の端部の前記軸芯方向Ｊにおける長さも短くなり、筒体の外周面１１Ｇと連結板３の両側壁５との溶接長さＬ（溶接部の長さ）が短くなっていた。
そのために、筒体１１の外周面１１Ｇと連結板３の両側壁５との溶接の際に母材に十分な熱が加わらず、母材の溶け込みが不十分になっていた。このようになると筒体１１の外周面１１Ｇと連結板３の両側壁５との溶接部５０の強度が低下し、車体への組付け後に前記溶接部５０に繰り返し加わる入力で溶接部５０に亀裂が発生して耐久性が低下しやすくなるという問題があった。
本発明は上記実状に鑑みて成されたもので、その目的は、筒体がその軸芯方向で短く設定されている場合であっても、溶接部に亀裂が入りにくい耐久性に優れた連結ロッドを提供する点にある。 The length of the connecting rod cylinder 11 in the axial direction J may be set short. In such a case, the length in the axial direction J of the outer peripheral surface 11G of the cylindrical body 11 and the end portions of the both side walls 5 of the connecting plate 3 is shortened, and the outer peripheral surface 11G of the cylindrical body and the both side walls 5 of the connecting plate 3 The welding length L (the length of the welded portion) was shorter.
Therefore, when the outer peripheral surface 11G of the cylindrical body 11 and the both side walls 5 of the connecting plate 3 are welded, sufficient heat is not applied to the base material, and the base material is not sufficiently melted. If it becomes like this, the intensity | strength of the welding part 50 of the outer peripheral surface 11G of the cylinder 11 and the both side walls 5 of the connection plate 3 will fall, and it will crack in the welding part 50 by the input added repeatedly to the said welding part 50 after the assembly to a vehicle body. Has occurred, and the durability tends to decrease.
The present invention has been made in view of the above circumstances, and the purpose thereof is a highly durable connection that is difficult to crack in the welded portion even when the cylinder is set short in the axial direction. The point is to provide a rod.

請求項１の構成による発明の構成・作用・効果は次のとおりである。
［構成］
ロッド本体と、
前記ロッド本体の長手方向の端部に外周面が溶接固着された筒体と、
前記筒体に内装された防振ブッシュとを備え、
前記ロッド本体は、前記筒体の軸芯方向に沿う方向に開放した断面コの字状の連結板と、前記連結板を補強する補強板とから成り、
前記連結板の長手方向の端部を前記筒体の外周面に溶接固着し、
前記補強板の幅方向の両側部を前記連結板の両側壁に各別に溶接固着し、
前記補強板の長手方向の端部を前記筒体の外周面に溶接固着してある連結ロッドであって、
前記補強板の長手方向の端部に、前記筒体の周方向で前記連結板の両側壁の外面の外方側に延出する一対の延出部を設け、
前記連結板の両側壁間の前記補強板の長手方向の端部と、前記補強板の前記延出部とを前記筒体の外周面に溶接固着してあり、
前記補強板の幅方向の両側部を前記連結板の両側壁の内面に各別に溶接固着し、
前記連結板の両側壁の長手方向の端部に切欠きを形成し、
前記延出部を前記切欠きを通して前記両側壁の外面の外方側に延出してある。 The structure, operation, and effect of the invention according to the structure of claim 1 are as follows.
[Constitution]
A rod body;
A cylindrical body whose outer peripheral surface is fixed by welding to the longitudinal end of the rod body;
An anti-vibration bush mounted on the cylinder,
The rod body is composed of a U-shaped connecting plate opened in a direction along the axial direction of the cylindrical body, and a reinforcing plate for reinforcing the connecting plate,
The welded and fixed end of the connecting plate in the longitudinal direction to the outer peripheral surface of the cylinder,
The both sides of the reinforcing plate in the width direction are welded and fixed separately to the both side walls of the connecting plate,
A connecting rod in which the end portion in the longitudinal direction of the reinforcing plate is welded and fixed to the outer peripheral surface of the cylindrical body,
A pair of extending portions extending to the outer side of the outer surfaces of both side walls of the connecting plate in the circumferential direction of the cylindrical body are provided at the longitudinal ends of the reinforcing plate,
The connecting plate and the longitudinal end portions of both side walls the reinforcing plate of, Ri said and said extending portion of the reinforcing plate is welded and fixed to the outer peripheral surface of the cylindrical body Thea,
The two side portions of the reinforcing plate in the width direction are welded and fixed to the inner surfaces of both side walls of the connecting plate, respectively.
Forming notches at the longitudinal ends of both side walls of the connecting plate;
The extending portion extends through the notch to the outer side of the outer surface of the both side walls.

［作用］
この構成によれば、前記連結板の両側壁間の前記補強板の長手方向の端部と、前記補強板の前記延出部とを前記筒体の外周面に溶接固着してあるから、溶接部の長さを長くすることができる。これにより、溶接の際に母材に十分な熱が加わるようになり、母材の溶け込みが十分多くなって溶接部の強度が強くなり、車体への組付け後に前記溶接部に繰り返し入力が加わっても溶接部に亀裂が発生しにくくなる。
また、前記補強板の幅方向の両側部を前記連結板の両側壁の内面に各別に溶接固着し、
前記連結板の両側壁の長手方向の端部に切欠きを形成し、
前記延出部を前記切欠きを通して前記両側壁の外面の外方側に延出してあるから、筒体の軸芯方向で補強板を連結板の内方に配置することができて、筒体の軸芯方向の長さが短い場合に十分対応することができるとともに、ロッド本体を、強度を備えた構造でありながら小型化することができる。 [Action]
According to this configuration, the longitudinal end portion of the reinforcing plate between both side walls of the connecting plate and the extending portion of the reinforcing plate are welded and fixed to the outer peripheral surface of the cylindrical body. The length of the part can be increased. As a result, sufficient heat is applied to the base metal during welding, the base material is sufficiently melted and the strength of the welded portion is increased, and repeated input is applied to the welded portion after assembly to the vehicle body. Kukunaru to crack occurs in the weld even.
Further, both side portions in the width direction of the reinforcing plate are fixed to the inner surfaces of both side walls of the connecting plate by welding,
Forming notches at the longitudinal ends of both side walls of the connecting plate;
Since the extending portion extends to the outer side of the outer surface of the both side walls through the notch, the reinforcing plate can be disposed on the inner side of the connecting plate in the axial direction of the cylindrical body. It is possible to sufficiently cope with the case where the length in the axial direction is short, and the rod body can be downsized while having a structure having strength.

請求項２による発明の構成・作用・効果は次のとおりである。
［構成］
請求項１による発明の構成において、
前記連結板の両側壁に連なる背壁の長手方向の端部を前記筒体の外周面に溶接固着してある。 The structure, operation, and effect of the invention according to claim 2 are as follows.
[Constitution]
In the structure of the invention according to claim 1 ,
End portions in the longitudinal direction of the back wall connected to both side walls of the connecting plate are fixedly welded to the outer peripheral surface of the cylindrical body.

［作用］
請求項１の構成による上記の作用に加えて、次の作用を奏することができる。
前記連結板の両側壁に連なる背壁の長手方向の端部を前記筒体の外周面に溶接固着してあるから、ロッド本体の強度をより強くすることができる。 [Action]
In addition to the above operation according to the configuration of the first aspect , the following operation can be achieved.
Since the end portions in the longitudinal direction of the back wall connected to the both side walls of the connecting plate are welded and fixed to the outer peripheral surface of the cylindrical body, the strength of the rod body can be further increased.

本発明によれば、
筒体がその軸芯方向で短く設定されている場合であっても、溶接部に亀裂が入りにくい耐久性に優れた連結ロッドを提供することができた。 According to the present invention,
Even when the cylindrical body is set to be short in the axial direction, it has been possible to provide a connecting rod excellent in durability in which cracks are not easily generated in the welded portion.

以下、本発明を実施するための最良の形態を図面に基づいて説明する。図１はエンジンと車体を連結する連結ロッドとしてのトルクロッド１００の正面図、図２はトルクロッド１００の平面図、図３はトルクロッド１００の下面図、図４は防振ブッシュ（第１防振ブッシュＢ１と第２防振ブッシュＢ２）を圧入する前のトルクロッド１００の正面図、図５は防振ブッシュを圧入する前のトルクロッド１００の平面図である。   Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. 1 is a front view of a torque rod 100 as a connecting rod for connecting an engine and a vehicle body, FIG. 2 is a plan view of the torque rod 100, FIG. 3 is a bottom view of the torque rod 100, and FIG. FIG. 5 is a front view of the torque rod 100 before press-fitting the vibration isolating bush B1 and the second vibration isolating bush B2), and FIG. 5 is a plan view of the torque rod 100 before press-fitting the vibration isolating bush.

各図に示すように、トルクロッド１００は、ロッド本体１と、ロッド本体１の長手方向Ｎの一端部１Ａに外周面１１Ｇが溶接固着された円筒状の第１筒体１１（筒体に相当）と、第１筒体１１に内装された第１防振ブッシュＢ１と、ロッド本体１の長手方向Ｎの他端部１Ｂに外周面１２Ｇが溶接固着された円筒状の第２筒体１２と、第２筒体１２に内装された第２防振ブッシュＢ２とを備えている。   As shown in each figure, the torque rod 100 includes a rod body 1 and a cylindrical first cylinder 11 (corresponding to a cylinder) having an outer peripheral surface 11G welded and fixed to one end 1A in the longitudinal direction N of the rod body 1. ), A first anti-vibration bush B1 housed in the first cylinder 11, and a cylindrical second cylinder 12 having an outer peripheral surface 12G welded and fixed to the other end 1B in the longitudinal direction N of the rod body 1. And a second vibration isolating bush B2 provided in the second cylinder 12.

前記第１筒体１１は第２筒体１２よりも小径に設定され、前記第１防振ブッシュＢ１は第２防振ブッシュＢ２よりも小径に設定され、第１筒体１１の軸芯方向Ｊ１の長さは第１筒体１１の外径よりも短く設定されるとともに、第２筒体１２の軸芯方向Ｊ２の長さよりも短く設定され、第１筒体１１の軸芯Ｏ１と第２筒体１２の軸芯Ｏ２は互いに間隔を空けて直交する状態に設定されている。   The first cylinder 11 is set to have a smaller diameter than the second cylinder 12, the first vibration isolation bush B1 is set to have a smaller diameter than the second vibration isolation bush B2, and the axial direction J1 of the first cylinder 11 Is set shorter than the outer diameter of the first cylindrical body 11 and shorter than the length of the second cylindrical body 12 in the axial direction J2, and the second cylindrical body 11 and the axial center O1 of the first cylindrical body 11 The axis O2 of the cylindrical body 12 is set to be orthogonal to each other with a space therebetween.

第１防振ブッシュＢ１は、第１内筒２１と、これを囲む第１外筒３１と、第１内筒２１と第１外筒３１の間に介在してこれらを連結する第１ゴム状弾性体４１とから成り、第１外筒３１が第１筒体１１に圧入されている。そして、第１内筒２１に挿通された第１取付けボルト（図示せず）により第１防振ブッシュＢ１が車体に取付け固定されるようになっている。   The first anti-vibration bush B1 includes a first inner cylinder 21, a first outer cylinder 31 surrounding the first inner cylinder 21, and a first rubber-like member interposed between the first inner cylinder 21 and the first outer cylinder 31 to connect them. The first outer cylinder 31 is press-fitted into the first cylinder 11. The first vibration isolating bush B1 is attached and fixed to the vehicle body by a first mounting bolt (not shown) inserted through the first inner cylinder 21.

第２防振ブッシュＢ２は、第２内筒２２と、これを囲む第２外筒３２と、第２内筒２２と第２外筒３２の間に介在してこれらを連結する第２ゴム状弾性体４２とから成り、第２外筒３２が第２筒体１２に圧入されている。そして、第２内筒２２に挿通された第２取付けボルト（図示せず）により第２防振ブッシュＢ２がエンジンに取付け固定されるようになっている。   The second anti-vibration bush B2 includes a second inner cylinder 22, a second outer cylinder 32 surrounding the second inner cylinder 22, and a second rubber-like member that is interposed between the second inner cylinder 22 and the second outer cylinder 32 and connects them. The second outer cylinder 32 is press-fitted into the second cylinder 12. The second vibration isolating bush B2 is attached and fixed to the engine by a second mounting bolt (not shown) inserted through the second inner cylinder 22.

前記ロッド本体１は、第１筒体１１の軸芯方向Ｊ１に沿う方向に開放した断面コの字状の連結板３と、連結板３を補強する補強板４とから成る。そして、連結板３の長手方向Ｎの一端部３Ａを第１筒体１１の外周面１１Ｇに溶接固着し、補強板４の幅方向Ｗの両側部４Ｓ（図３参照）を連結板３の両側壁５の内面５Ｎに各別に溶接固着し、補強板４の長手方向Ｎの一端部４Ａを第１筒体１１の外周面１１Ｇに溶接固着してある。   The rod body 1 includes a connecting plate 3 having a U-shaped cross section that is open in a direction along the axial direction J1 of the first cylindrical body 11, and a reinforcing plate 4 that reinforces the connecting plate 3. Then, one end portion 3A in the longitudinal direction N of the connecting plate 3 is welded and fixed to the outer peripheral surface 11G of the first cylindrical body 11, and both side portions 4S (see FIG. 3) in the width direction W of the reinforcing plate 4 are connected to both sides of the connecting plate 3. One end 4A in the longitudinal direction N of the reinforcing plate 4 is welded and fixed to the inner surface 5N of the wall 5 and welded to the outer peripheral surface 11G of the first cylinder 11.

図３に示すように、第１筒体１１の軸芯方向視で連結板３の一方の側壁５は一直線状に設定され、他方の側壁５は「く」の字状に折曲して、第１筒体１１側の連結板３の両側壁５の間隔が、第２筒体１２側の連結板３の両側壁５の間隔よりも広く設定されている。また、図１に示すように、第２筒体１２の軸芯方向視で連結板３の両側壁５は第２筒体１２側に向かって広がる三角形状に設定されている。   As shown in FIG. 3, one side wall 5 of the connecting plate 3 is set in a straight line when viewed from the axial direction of the first cylindrical body 11, and the other side wall 5 is bent into a “<” shape. The interval between both side walls 5 of the connecting plate 3 on the first cylinder 11 side is set wider than the interval between both side walls 5 of the connecting plate 3 on the second cylinder 12 side. Further, as shown in FIG. 1, both side walls 5 of the connecting plate 3 are set in a triangular shape extending toward the second cylinder 12 when viewed in the axial direction of the second cylinder 12.

そして、補強板４の長手方向Ｎの一端部４Ａに、第１筒体１１の周方向Ｓで連結板３の両側壁５の外面５Ｇの外方側に延出する一対の円弧状の延出部６を設け、連結板３の両側壁５の長手方向Ｎの一端部３Ａに切欠き７を形成し、前記延出部６を切欠き７を通して前記両側壁５の外面５Ｇの外方側に延出し（図３参照）、連結板３の両側壁５間に位置する補強板４の長手方向Ｎの一端部４Ａに形成した円弧状の嵌合面と、補強板４の前記延出部６の円弧状の嵌合面とを第１筒体１１の外周面１１Ｇに嵌合して溶接固着してある（図３参照）。両嵌合面は連続して滑らかに連なっている。 図１に示すように、切欠き７は、連結板３が開放する方向と同一方向（連結板３の両側壁５に連なる背壁８側とは反対方向）と、前記第１筒体１１の外周面１１Ｇ側を向く方向とに開放している。   Then, a pair of arc-shaped extensions extending to the outer side of the outer surfaces 5G of the side walls 5 of the connecting plate 3 in the circumferential direction S of the first cylindrical body 11 at one end portion 4A in the longitudinal direction N of the reinforcing plate 4 A portion 6 is provided, a notch 7 is formed in one end portion 3A in the longitudinal direction N of both side walls 5 of the connecting plate 3, and the extending portion 6 is passed through the notch 7 to the outside of the outer surface 5G of the side walls 5. An extension (see FIG. 3), an arcuate fitting surface formed at one end 4A in the longitudinal direction N of the reinforcing plate 4 located between the side walls 5 of the connecting plate 3, and the extending portion 6 of the reinforcing plate 4 These arc-shaped fitting surfaces are fitted to the outer peripheral surface 11G of the first cylindrical body 11 and welded (see FIG. 3). Both fitting surfaces are continuously and smoothly connected. As shown in FIG. 1, the notch 7 has the same direction as the direction in which the connecting plate 3 opens (the direction opposite to the side of the back wall 8 connected to both side walls 5 of the connecting plate 3), and the first cylindrical body 11. It opens to the direction facing the outer peripheral surface 11G side.

また、図２に示すように、連結板３の両側壁５に連なる背壁８の長手方向Ｎの一端部８Ａの端面に円弧状の嵌合面を形成し、この嵌合面を第１筒体１１の外周面１１Ｇに嵌合して、背壁８の外面８Ｇの外方側から溶接固着してある（図１参照）。連結板３の両側壁５の一端部（背壁８の一端部を除く）と第１筒体１１の外周面１１Ｇとは溶接固着してない。これにより、溶接箇所を低減して製造コストを抑えてある。この構造に換えて、連結板３の両側壁５の一端部（背壁８の一端部を除く）と第１筒体１１の外周面１１Ｇとを溶接固着してもよい。   Further, as shown in FIG. 2, an arcuate fitting surface is formed on the end surface of one end portion 8A in the longitudinal direction N of the back wall 8 connected to both side walls 5 of the connecting plate 3, and this fitting surface is used as the first cylinder. The outer peripheral surface 11G of the body 11 is fitted and welded from the outer side of the outer surface 8G of the back wall 8 (see FIG. 1). One end of both side walls 5 of the connecting plate 3 (excluding one end of the back wall 8) and the outer peripheral surface 11G of the first cylindrical body 11 are not fixed by welding. Thereby, the welding location is reduced and the manufacturing cost is suppressed. Instead of this structure, one end of both side walls 5 of the connecting plate 3 (excluding one end of the back wall 8) and the outer peripheral surface 11G of the first cylinder 11 may be welded and fixed.

図１に示すように、連結板３の両側壁５の長手方向Ｎの他端部３Ｂに円弧状の嵌合面を形成し、この嵌合面を第２筒体１２の外周面１２Ｇに嵌合して、側壁５の外面の外方側から溶接固着してある。   As shown in FIG. 1, an arcuate fitting surface is formed at the other end portion 3B in the longitudinal direction N of both side walls 5 of the connecting plate 3, and this fitting surface is fitted to the outer peripheral surface 12G of the second cylindrical body 12. In addition, welding is fixed from the outer side of the outer surface of the side wall 5.

上記構造のトルクロッド１００は次のようにして製造される。
（１） 連結板３と補強板４をプレス加工により成形する。
このとき、連結板３の両側壁５に連なる背壁８の長手方向Ｎの一端部の端面に円弧状の嵌合面を形成し、連結板３の両側壁５の長手方向Ｎの他端部に円弧状の嵌合面を形成し、連結板３に前記切欠き７を形成する。また、補強板４の長手方向Ｎの一端部４Ａに前記円弧状の延出部６を形成する。 The torque rod 100 having the above structure is manufactured as follows.
(1) The connecting plate 3 and the reinforcing plate 4 are formed by pressing.
At this time, an arcuate fitting surface is formed on the end surface of one end portion in the longitudinal direction N of the back wall 8 connected to the both side walls 5 of the connecting plate 3, and the other end portion in the longitudinal direction N of the both side walls 5 of the connecting plate 3. An arcuate fitting surface is formed on the connecting plate 3 and the notch 7 is formed on the connecting plate 3. Further, the arc-shaped extending portion 6 is formed at one end portion 4 </ b> A in the longitudinal direction N of the reinforcing plate 4.

次に、補強板４の幅方向Ｗの両側部４Ｓを連結板３の両側壁５の内面５Ｎに各別に溶接固着してロッド本体１を形成する。   Next, the rod body 1 is formed by welding and fixing both side portions 4S of the reinforcing plate 4 in the width direction W to the inner surfaces 5N of the side walls 5 of the connecting plate 3 separately.

そして、連結板３の両側壁５に連なる背壁８の長手方向Ｎの一端部の端面に形成した円弧状の嵌合面を第１筒体１１の外周面１１Ｇに嵌合して、背壁８の外面８Ｇの外方側から溶接固着し、連結板３の両側壁５間の補強板４の長手方向Ｎの一端部４Ａに形成した円弧状の嵌合面と、補強板４の前記延出部６の円弧状の嵌合面とを第１筒体１１の外周面１１Ｇに嵌合して溶接固着する。   Then, an arcuate fitting surface formed on the end surface of one end in the longitudinal direction N of the back wall 8 connected to the both side walls 5 of the connecting plate 3 is fitted to the outer peripheral surface 11G of the first cylindrical body 11, and the back wall 8 and the arc-shaped fitting surface formed at one end 4A in the longitudinal direction N of the reinforcing plate 4 between the side walls 5 of the connecting plate 3 and the extension of the reinforcing plate 4 The arcuate fitting surface of the projecting portion 6 is fitted to the outer peripheral surface 11G of the first cylinder 11 and fixed by welding.

また、連結板３の両側壁５の長手方向Ｎの他端部に形成した円弧状の嵌合面を第２筒体１２の外周面１２Ｇに嵌合して、側壁５の外面の外方側から溶接固着する。これにより、図４〜図５に示すように、連結板３と補強板４が一体になったトルクロッド１００の中間品（防振ブッシュの圧入前の状態）が形成される。   Further, an arcuate fitting surface formed at the other end in the longitudinal direction N of both side walls 5 of the connecting plate 3 is fitted to the outer peripheral surface 12G of the second cylindrical body 12, and the outer side of the outer surface of the side wall 5. Welding from. As a result, as shown in FIGS. 4 to 5, an intermediate product of the torque rod 100 in which the connecting plate 3 and the reinforcing plate 4 are integrated (a state before the vibration-proof bushing is press-fitted) is formed.

（２） 前記中間品の第１筒体１１に第１防振ブッシュＢ１を圧入し、中間品の第２筒体１２に第２防振ブッシュＢ２を圧入して図１〜図３に示すトルクロッド１００を製造する。 (2) The first vibration isolating bush B1 is press-fitted into the intermediate first cylinder 11 and the second anti-vibration bush B2 is press-fitted into the intermediate second cylinder 12, and the torque shown in FIGS. The rod 100 is manufactured.

上記のようにして製造したトルクロッド１００は、第１防振ブッシュＢ１に第１取付けボルトを挿通させてトルクロッド１００の一端部を車体に取付け固定し、第２防振ブッシュＢ２に第２取付けボルトを挿通させてトルクロッド１００の他端部をエンジンに取付け固定する。このようにしてトルクロッド１００でエンジンと車体を連結し、エンジンユニットのロール方向の動きや振動を抑制する。   In the torque rod 100 manufactured as described above, the first mounting bolt is inserted into the first vibration isolating bush B1 to fix the one end of the torque rod 100 to the vehicle body, and the second mounting is attached to the second vibration isolating bush B2. A bolt is inserted to fix the other end of the torque rod 100 to the engine. In this way, the engine and the vehicle body are connected by the torque rod 100, and the movement and vibration of the engine unit in the roll direction are suppressed.

上記の構成によれば、前記連結板３の両側壁５間の補強板４の長手方向の端部と、補強板４の延出部６とを第１筒体１１の外周面１１Ｇに溶接固着してあるから、溶接部５０の長さを長くすることができる。これにより、溶接の際に母材に十分な熱が加わるようになり、母材の溶け込みが十分多くなって溶接部５０の強度が強くなり、車体への組付け後に前記溶接部５０に繰り返し入力が加わっても溶接部５０に亀裂が発生しくくなる。   According to said structure, the edge part of the longitudinal direction of the reinforcement board 4 between the both side walls 5 of the said connection board 3 and the extension part 6 of the reinforcement board 4 are weld-fixed to the outer peripheral surface 11G of the 1st cylinder 11. As a result, the length of the welded portion 50 can be increased. As a result, a sufficient amount of heat is applied to the base material during welding, the base material is sufficiently melted and the strength of the welded portion 50 is increased, and repeatedly input to the welded portion 50 after assembly to the vehicle body. Even if it is added, cracks are unlikely to occur in the welded portion 50.

そして、連結板３の両側壁５の長手方向Ｎの一端部３Ａに切欠き７を形成し、前記延出部６を切欠き７を通して前記両側壁５の外面５Ｇの外方側に延出してあるから（図３参照）、第１筒体１１の軸芯方向Ｊ１で補強板４を連結板３の内方に配置することができて、第１筒体１１の軸芯方向Ｊの長さが短い場合に十分対応することができるとともに、ロッド本体１を、強度を備えた構造でありながら小型化することができる。   Then, a notch 7 is formed in one end portion 3A in the longitudinal direction N of both side walls 5 of the connecting plate 3, and the extending portion 6 extends through the notch 7 to the outer side of the outer surface 5G of the both side walls 5. Therefore (see FIG. 3), the reinforcing plate 4 can be disposed inward of the connecting plate 3 in the axial direction J1 of the first cylinder 11, and the length of the first cylinder 11 in the axial direction J The rod body 1 can be reduced in size while having a structure with strength.

連結ロッドの正面図Front view of connecting rod 連結ロッドの平面図Top view of connecting rod 連結ロッドの下面図Bottom view of connecting rod 防振ブッシュを圧入する前の連結ロッドの正面図Front view of connecting rod before press-fitting anti-vibration bush 防振ブッシュを圧入する前の連結ロッドの平面図Top view of the connecting rod before press-fitting the anti-vibration bush 従来の連結ロッドの正面図Front view of conventional connecting rod 従来の連結ロッドの下面図Bottom view of conventional connecting rod

符号の説明Explanation of symbols

１ ロッド本体
１Ａ ロッド本体の長手方向の端部
１Ｂ ロッド本体の長手方向の他端部
３ 連結板
３Ａ 連結板の長手方向の端部（一端部）
３Ｂ 連結板の長手方向の他端部
４ 補強板
４Ａ 補強板の長手方向の端部（一端部）
４Ｂ 補強板の長手方向の他端部
４Ｓ 補強板の幅方向の側部
５ 連結板の両側壁
５Ｎ 連結板の両側壁の内面
５Ｇ 連結板の両側壁の外面
６ 延出部
７ 切欠き
８ 背壁
８Ａ 背壁の長手方向の端部
８Ｇ 背壁の外周面
１１ 筒体（第１筒体）
１１Ｇ 筒体の外周面
１２ 第２筒体
１２Ｇ 第２筒体の外周面
２１ 第１内筒
２２ 第２内筒
３１ 第１外筒
３２ 第２外筒
４１ 第１ゴム状弾性体
４２ 第２ゴム状弾性体
５０ 溶接部
１００ 連結ロッド（トルクロッド）
Ｂ１ 防振ブッシュ（第１防振ブッシュ）
Ｂ２ 防振ブッシュ（第２防振ブッシュ）
Ｊ 筒体の軸芯方向
Ｊ１ 第１筒体の軸芯方向
Ｊ２ 第２筒体の軸芯方向
Ｌ 溶接部の長さ
Ｎ 連結板の長手方向
Ｏ１ 第１筒体の軸芯
Ｏ２ 第２筒体の軸芯
Ｓ 筒体の周方向
Ｗ 幅方向 DESCRIPTION OF SYMBOLS 1 Rod main body 1A End part 1B of a rod main body in the longitudinal direction Other end part of the longitudinal direction of a rod main body 3 Connection board 3A End part (one end part) of the longitudinal direction of a connection board
3B The other end of the connecting plate in the longitudinal direction 4 The reinforcing plate 4A The end of the reinforcing plate in the longitudinal direction (one end)
4B The other end portion in the longitudinal direction of the reinforcing plate 4S The side portion in the width direction of the reinforcing plate 5 Both side walls of the connecting plate 5N Inner surfaces of both side walls of the connecting plate 5G Outer surfaces of both side walls of the connecting plate 6 Extending portion 7 Notch 8 Back Wall 8A Longitudinal end of back wall 8G Outer peripheral surface of back wall 11 Tube (first tube)
11G Outer peripheral surface of cylindrical body 12 Second cylindrical body 12G Outer peripheral surface of second cylindrical body 21 First inner cylinder 22 Second inner cylinder 31 First outer cylinder 32 Second outer cylinder 41 First rubber-like elastic body 42 Second rubber Elastic body
50 Welded part 100 Connecting rod (torque rod)
B1 Anti-vibration bush (first anti-vibration bush)
B2 Anti-vibration bush (second anti-vibration bush)
J axial direction of the cylinder J1 axial direction of the first cylinder J2 axial direction of the second cylinder L welded length N longitudinal direction of the connecting plate O1 axial axis O2 of the first cylinder second cylinder Shaft core S Cylindrical circumferential direction W Width direction

Claims (2)

ロッド本体と、
前記ロッド本体の長手方向の端部に外周面が溶接固着された筒体と、
前記筒体に内装された防振ブッシュとを備え、
前記ロッド本体は、前記筒体の軸芯方向に沿う方向に開放した断面コの字状の連結板と、前記連結板を補強する補強板とから成り、
前記連結板の長手方向の端部を前記筒体の外周面に溶接固着し、
前記補強板の幅方向の両側部を前記連結板の両側壁に各別に溶接固着し、
前記補強板の長手方向の端部を前記筒体の外周面に溶接固着してある連結ロッドであって、
前記補強板の長手方向の端部に、前記筒体の周方向で前記連結板の両側壁の外面の外方側に延出する一対の延出部を設け、
前記連結板の両側壁間の前記補強板の長手方向の端部と、前記補強板の前記延出部とを前記筒体の外周面に溶接固着してあり、
前記補強板の幅方向の両側部を前記連結板の両側壁の内面に各別に溶接固着し、
前記連結板の両側壁の長手方向の端部に切欠きを形成し、
前記延出部を前記切欠きを通して前記両側壁の外面の外方側に延出してある連結ロッド。 A rod body;
A cylindrical body whose outer peripheral surface is fixed by welding to the longitudinal end of the rod body;
An anti-vibration bush mounted on the cylinder,
The rod body is composed of a U-shaped connecting plate opened in a direction along the axial direction of the cylindrical body, and a reinforcing plate for reinforcing the connecting plate,
The welded and fixed end of the connecting plate in the longitudinal direction to the outer peripheral surface of the cylinder,
The both sides of the reinforcing plate in the width direction are welded and fixed separately to the both side walls of the connecting plate,
A connecting rod in which the end portion in the longitudinal direction of the reinforcing plate is welded and fixed to the outer peripheral surface of the cylindrical body,
A pair of extending portions extending to the outer side of the outer surfaces of both side walls of the connecting plate in the circumferential direction of the cylindrical body are provided at the longitudinal ends of the reinforcing plate,
The connecting plate and the longitudinal end portions of both side walls the reinforcing plate of, Ri said and said extending portion of the reinforcing plate is welded and fixed to the outer peripheral surface of the cylindrical body Thea,
The two side portions of the reinforcing plate in the width direction are welded and fixed to the inner surfaces of both side walls of the connecting plate, respectively.
Forming notches at the longitudinal ends of both side walls of the connecting plate;
A connecting rod extending through the notch to the outside of the outer surface of the both side walls . 前記連結板の両側壁に連なる背壁の長手方向の端部を前記筒体の外周面に溶接固着してある請求項１記載の連結ロッド。 The connecting rod according to claim 1 , wherein end portions in a longitudinal direction of a back wall connected to both side walls of the connecting plate are fixedly welded to an outer peripheral surface of the cylindrical body.
JP2007311919A 2007-12-03 2007-12-03 Connecting rod Expired - Fee Related JP4937093B2 (en)

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JPH0658356A (en) * 1992-08-06 1994-03-01 Bridgestone Corp Bracket for vibration control device
JP3136436B2 (en) * 1995-12-21 2001-02-19 本田技研工業株式会社 Suspension arm
JP2005299898A (en) * 2004-04-16 2005-10-27 Toyo Tire & Rubber Co Ltd Vibration-proof device

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