JP4318382B2

JP4318382B2 - Stabilizer

Info

Publication number: JP4318382B2
Application number: JP2000144542A
Authority: JP
Inventors: 一秀礒貝
Original assignee: Mitsubishi Steel Mfg Co Ltd
Current assignee: Mitsubishi Steel Mfg Co Ltd
Priority date: 2000-05-17
Filing date: 2000-05-17
Publication date: 2009-08-19
Anticipated expiration: 2020-05-17
Also published as: JP2001322415A

Description

【０００１】
【発明の属する技術分野】
本発明は、自動車等に緩衝装置として装備されるスタビライザに関するものである。
【０００２】
【従来の技術】
従来から使用されているスタビライザは、軸部の長手方向両端から直角の同じ方向に腕部を突出させ、平面コ字形に一体成形したもので、自動車等の懸架部の空隙に軸部を車軸と平行に車体に装着し、腕部の先端に負荷を掛けて軸部を捩りばねとして作用させ、緩衝効果を発揮させるようにしている。
【０００３】
【発明が解決しようとする課題】
コ字形に一体成形したスタビライザの軸部を懸架部の空隙に装着する際には、軸部の長手方向両端から直角に突出している腕部が邪魔になり、自動車等の懸架部の狭隘な隙間を潜らせてスタビライザを車体に貫通装着することは、極めて困難であり、その解決が望まれていた。
【０００４】
本発明は、このような従来の問題を解決し、狭隘な隙間を自由に潜らせることができ、製造が簡単でしかも容易に車両に装着できるスタビライザを提供することを目的とするものである。
【０００５】
【課題を解決するための手段】
本発明は、軸部の長手方向両端から腕部を突出させたスタビライザにおいて、軸部中間で分割した軸部を互いに結合する中継ぎ部を有し、該中継ぎ部は軸部を互いに当接させる平面部と、両側に分割した軸部の前記平面部にそれぞれ形成され互いに嵌合する凹凸部と、前記中継ぎ部を貫通し左右に分割した軸部を固定する締結手段と、を備えていることを特徴とするスタビライザに係るもので、スタビライザを軸部中間の中継ぎ部で分割した状態で、分割した軸部をそれぞれ懸架部の狭隘な隙間を潜らせ、車両の中間部で平面部を当接して固定し、車両に装着する。
【０００６】
【発明の実施の形態】
以下、本発明の実施の形態を、図に基づいて説明する。
図１は、本発明のスタビライザ１の全体を示す斜視図であって、基幹部である軸部２の長手方向両端から直角の同じ方向に腕部３が突出しており、軸部２は中間で長手方向両側に分割軸部２ａと分割軸部２ｂとに二分割されていて、これら分割されている分割軸部２ａと分割軸部２ｂとは、次に説明する中継ぎ部４で互いに結合されるようになっている。
【０００７】
図２は、本発明のスタビライザ１の中継ぎ部４の実施の形態の一例を分解状態で示す斜視図であって、左右に分割されている分割軸部２ａ，２ｂの分割側の端部近傍は、外側になる一面が半裁の円筒面に形成された背面部５になっており、反対側は、分割軸部２ａ，２ｂの軸心に沿う平面部６になっていて、背面部５並びに平面部６のほぼ中央には、平面部６に対して垂直方向に貫通するボルト孔７が穿設され、ボルト孔７の背面部５側の端部には座ぐり８（分割軸部２ｂ側のみが現われている。）が設けられている。
【０００８】
分割軸部２ａの平面部６には、ボルト孔７を間にして分割軸部２ａの軸腺方向に対称的な位置になるようにして、反軸端側には円柱状の凸部９が形成され、軸端側には円柱状の凹部１０が形成されている。他方の分割軸部２ｂの下向きになっている平面部６にも図２には現われないが、ボルト孔７を間にして、分割軸部２ａ側の凸部９及び凹部１０と同じ間隔をおき、しかも同じ径で同じ高さの円柱状で、反軸端側には凸部が形成され、軸端側には凹部が形成されている。このため、分割軸部２ａ側のボルト孔７と分割軸部２ｂ側のボルト孔７とが一直線上に揃うようにして双方の平面部６，６を重ねると、分割軸部２ａ側の凸部９が分割軸部２ｂ側の凹部に下方から密に嵌入し、分割軸部２ａ側の凹部１０には、分割軸部２ｂ側の凸部が上方から密に嵌入するようになっている。
【０００９】
上述のように分割軸部２ａ側のボルト孔７と分割軸部ｂ側のボルト孔７とが一直線上に揃うようにして双方の平面部６，６を重ねて凸部９と凹部１０とを互いに密に嵌合し、一直線上に揃っているボルト孔７，７に締結手段になるボルト１１を挿通し、同じく締結手段になるナット１２を螺合して締め付けると、図１に示すように分割軸部２ａ，２ｂが中継ぎ部４で一体的に結合固定されて軸部２を形成し、その軸部２の長手方向両端から直角の同じ方向に腕部３が突出しているスタビライザ１になる。
【００１０】
次に、上述した図１、図２に示すスタビライザ１の作用を説明する。
スタビライザ１の軸部２に作用する力としては、軸部２の軸心に沿って発生する引張力及び圧縮力、並びに軸部２の軸心を含む面内で発生する軸曲げ力及び軸心周りに発生する捩じり力等がある。
【００１１】
軸部２の軸心に沿う引張力及び圧縮力に対しては、凸部９と凹部１０とが嵌合して、それらの平面部６，６に対し垂直な面等が対抗するようになる。なお、軸心に沿う引張力に対しては、中継ぎ部４におけるボルト孔７の両脇の箇所が最小断面積になって強度が弱くなるため、ボルト孔７の両脇の箇所を中継ぎ部４の幅方向に張り出して中継ぎ部４以外の軸部における断面積と同程度にしておけば、引張力に対する強度が高くなる。
【００１２】
軸部２の軸曲げ力に対しては、２種類の伝達がなされる。すなわち平面部６，６の面内で発生する軸曲げ力に対しては、２組の嵌合し合った凸部９と凹部１０とが支点及び作用点となり、拘束状態を維持してその軸曲げ力を伝達する。また、軸部２の軸心を含み平面部６に対して垂直な面内で発生する軸曲げ力に対しては、先ず平面部６の端部が支点となり、ボルト１１が作用点となる梃子としての作用をし、平面部６，６を互いに離反剥離する力として働くが、この軸曲げ力は単純にボルト１１、ナット１２の締結力のみによってその力が伝達されることになるが、実際の軸曲げ力は上記２種類の力が同時に掛かる合成曲げ力であり、それらの作用が同時に行われて伝達される。
【００１３】
軸部２の軸心周りに発生する捩じり力に対しては、平面部６の幅方向の端縁が支点となり、反力を受けて平面部６，６を開こうとする力はボルト１１、ナット１２の締結力で拘束され、結果として平面部６全面を介して捩じり力が伝達される。以上の観点から、平面部６の幅は十分に大きな寸法とし、且つ、平面部６の軸心に沿った長さも十分に長い方が望ましい。
【００１４】
なお、図２に示した実施の形態の凸部９や凹部１０は円柱状になっているが、これらは平面部６に近い箇所が円柱状で、平面部６から離れた箇所が円錐形状や半円球形状になっている凸部や凹部でもよい。しかし、その形状の何処かに上記のような垂直壁面が存在しないと、その凸部や凹部に水平な剪断力が作用した際に平面部６と垂直な方向の分力が発生し、ボルト１１、ナット１２の締結力に更なる負荷を増加させることになるので、凸部や凹部には必ず垂直壁面が存在することが望ましい。またボルト１１、ナット１２は１組に限らず、２組あるいは３組のものを貫通固定するようにしてもよい。
【００１５】
図３は、本発明のスタビライザ１の中継ぎ部４の実施の形態の他の例を分解状態で示す斜視図であって、図２と同一部分には同一符号を付してある。
図３に示す実施の形態においては、分割軸部２ａ，２ｂに形成されているそれぞれの平面部６には、ボルト孔７を間にして反軸端側にはＴ字状の凸部１３が形成され、軸端側には反転したＴ字状の凹部１４が形成されている。そして分割軸部２ａ側のボルト孔７と分割軸部２ｂ側のボルト孔７とが一直線上に揃うようにして双方の平面部６，６を重ねると、分割軸部２ａ側の凸部１３が分割軸部２ｂ側の凹部１４に密に嵌入し、分割軸部２ａ側の凹部１４には分割軸部２ｂ側の凸部１３が上方から密に嵌入するようになっている。この状態でボルト孔７，７に図示しないボルトを挿通してナットを締め付けると、分割軸部２ａ，２ｂが中継ぎ部４で一体的に結合固定されて図１に示すスタビライザ１になる。
【００１６】
図３に示す実施の形態において軸心に沿う引張力及び圧縮力に対しては、Ｔ字状の凸部１３と凹部１４とが嵌合しているため、それらの平面部６，６に対し垂直な壁面等でその力を伝達することになるが、ボルト孔７の両脇の箇所を中継ぎ部４の幅方向に張り出しておけば、引張力に対する強度が高くなる。
【００１７】
平面部６，６の面内での軸曲げ力に対しては、Ｔ字状の凸部１３と凹部１４とが共に支点と作用点となり、互いに拘束し合った壁面等によって平面部６，６の面内での軸曲げ力を伝達し、軸部２の軸心を含み平面部６に対して垂直な面内で発生する軸曲げ力に対しては、図２の実施形態と同様に平面部６の端部が支点で、ボルト孔７に挿通したボルトが作用点となる梃子として働き、ボルト、ナットの締結力でその力が伝達される。軸部２の軸心周りに発生する捩じり力に対しては図２の実施形態と同じであって、平面部６の幅方向の端縁が支点となり、反力を受けて平面部６，６を開こうとする力をボルト、ナットの締結力で拘束し、平面部６全面を介して伝達される。この実施形態においても、ボルト、ナットは２組以上のものを貫通固定するようにしてもよい。
【００１８】
図４は、本発明のスタビライザ１の中継ぎ部４の実施の形態の更に他の例を分解状態で示す斜視図であって、左右に分割されている分割軸部２ａ，２ｂの分割側の端部には、分割軸部２ａ，２ｂの軸心に垂直な平面部１５を有するフランジ１６がそれぞれ固着されている。
【００１９】
これら双方のフランジ１６には、それぞれの平面部１５に対して垂直方向に貫通する複数（図４ではそれぞれ２個）のボルト孔１７が穿設されており、さらに平面部１５には軸心に対して対称でそれぞれ上下反対の位置に、線条の凸部１８と凹部１９とが形成されている。そして分割軸部２ａ側のボルト孔１７と分割軸部２ｂ側のボルト孔１７とが一直線上に揃うようにして双方のフランジ１６の平面部１５を当接させると、分割軸部２ａ側の凸部１８が分割軸部２ｂ側の凹部１９に密に嵌入し、分割軸部２ａ側の凹部１９には分割軸部２ｂ側の凸部１８が密に嵌入するようになっている。この状態でボルト孔１７，１７に図示しないボルトを挿通してナットを締め付けると、分割軸部２ａ，２ｂが中継ぎ部４で結合固定されて一体的なスタビライザ１になる。
【００２０】
図４に示す実施の形態において軸心に沿う引張力に対しては、ボルト孔１７に挿通されてフランジ１６を結合しているボルト、ナットの締結力で伝達され、圧縮力に対しては、平面部１５を介して伝達される。軸曲げ力に対しては、フランジ１６の端部が支点でボルト孔１７に挿通したボルトが作用点となり、その離反する力をボルト、ナットの締結力が支えて伝達される。軸部２の軸心周りに発生する捩じり力に対しては、フランジ１６の径方向に設けられている凸部１８と凹部１９との嵌合し合っている壁面等を介して伝達される。
【００２１】
図４に示す実施の形態においては、凸部１８と凹部１９とは１組の直線形状のものになっているが、これらは複数本並べてもよく、あるいは直線状でなくてＹ字形や十字形であってもよい。
【００２２】
またスタビライザ１としては、中実材でなく中空材で構成してもよい。但し肉厚が薄くて強度が不足する場合には、適宜より大きい内径を有する適切な長さの管材を被せたり、若しくは逆に小さな外径を有する管材や中実棒を挿入した後、鍛接して強固に固着成形する。
【００２３】
【発明の効果】
本発明は、分割して腕部を備えていない端部側から車両懸架部の狭隘な隙間を潜らせて分割した軸部を楽に挿入し、車両の中間部で平面部を当接して固定することにより、極めて容易にスタビライザを車両に装着することができる効果がある。
【００２４】
また中継ぎ部の平面部も、アップセッターや或いは更にプレス等とを併用し、容易に且つ廉価に製造できる効果がある。
【図面の簡単な説明】
【図１】本発明のスタビライザの全体を示す斜視図である。
【図２】本発明のスタビライザの中継ぎ部の実施の形態の一例を分解状態で示す斜視図である。
【図３】本発明のスタビライザの中継ぎ部の実施の形態の他の例を分解状態で示す斜視図である。
【図４】本発明のスタビライザの中継ぎ部の実施の形態の更に他の例を分解状態で示す斜視図である。
【符号の説明】
１スタビライザ
２軸部
２ａ分割軸部
２ｂ分割軸部
３腕部
４中継ぎ部
６平面部
９凸部
１０凹部
１１ボルト（締結手段）
１２ナット（締結手段）
１３凸部
１４凹部
１５平面部
１８凸部
１９凹部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stabilizer provided as a shock absorber in an automobile or the like.
[0002]
[Prior art]
A conventionally used stabilizer is one in which an arm portion protrudes in the same direction perpendicular to both ends of the longitudinal direction of the shaft portion, and is integrally formed in a plane U-shape. It is mounted on the vehicle body in parallel, and a load is applied to the tip of the arm portion so that the shaft portion acts as a torsion spring to exert a buffering effect.
[0003]
[Problems to be solved by the invention]
When mounting the shaft part of the stabilizer integrally formed in a U shape into the gap of the suspension part, the arm part protruding at right angles from both ends in the longitudinal direction of the shaft part becomes an obstacle, and the narrow gap of the suspension part of an automobile etc. It is extremely difficult to pierce and mount the stabilizer through the vehicle body, and a solution has been desired.
[0004]
An object of the present invention is to solve such a conventional problem, and to provide a stabilizer that can freely hide a narrow gap, is easy to manufacture, and can be easily mounted on a vehicle.
[0005]
[Means for Solving the Problems]
The present invention provides a stabilizer in which arms are protruded from both longitudinal ends of a shaft portion, and has a joint portion that connects shaft portions divided at the middle of the shaft portion to each other, and the joint portion is a plane that makes the shaft portions contact each other. A concavo-convex part formed on the flat part of the shaft part divided on both sides and fitted to each other, and fastening means for fixing the shaft part that penetrates the intermediate part and is divided into left and right sides. This is related to the characteristic stabilizer. With the stabilizer divided at the intermediate part of the shaft part, the divided shaft part is hidden in the narrow gap of the suspension part, and the flat part is brought into contact with the intermediate part of the vehicle. Secure and attach to the vehicle.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing the entire stabilizer 1 of the present invention, in which arm portions 3 protrude in the same direction at right angles from both longitudinal ends of a shaft portion 2 as a main portion, and the shaft portion 2 is in the middle. The split shaft portion 2a and the split shaft portion 2b are divided into two on both sides in the longitudinal direction, and the split split shaft portion 2a and the split shaft portion 2b are connected to each other by a joint portion 4 described below. It is like that.
[0007]
FIG. 2 is a perspective view showing an example of the embodiment of the intermediate portion 4 of the stabilizer 1 of the present invention in an exploded state, in which the vicinity of the split-side end portions of the split shaft portions 2a and 2b that are split to the left and right are as follows. The outer surface is a back surface portion 5 formed in a half-cylindrical cylindrical surface, and the opposite side is a flat surface portion 6 along the axis of the divided shaft portions 2a and 2b. A bolt hole 7 penetrating in a direction perpendicular to the flat surface portion 6 is formed at substantially the center of the portion 6, and a counterbore 8 (only on the divided shaft portion 2 b side) is formed at an end of the bolt hole 7 on the back surface portion 5 side. Appears.) Is provided.
[0008]
On the flat surface portion 6 of the split shaft portion 2a, a cylindrical convex portion 9 is provided on the opposite end side so that the bolt hole 7 is interposed between the flat shaft portion 6a and a symmetrical position in the axial gland direction of the split shaft portion 2a. A cylindrical recess 10 is formed on the shaft end side. Although not shown in FIG. 2 also on the flat surface portion 6 facing downward of the other split shaft portion 2b, the same spacing as the convex portion 9 and the concave portion 10 on the split shaft portion 2a side is provided with the bolt hole 7 in between. In addition, a cylindrical shape having the same diameter and the same height, a convex portion is formed on the opposite end side, and a concave portion is formed on the axial end side. For this reason, when the two flat portions 6 and 6 are overlapped so that the bolt hole 7 on the split shaft portion 2a side and the bolt hole 7 on the split shaft portion 2b side are aligned, a convex portion on the split shaft portion 2a side. 9 is closely fitted into the concave portion on the divided shaft portion 2b side from below, and the convex portion on the divided shaft portion 2b side is closely fitted into the concave portion 10 on the divided shaft portion 2a side from above.
[0009]
As described above, the projecting portion 9 and the recessed portion 10 are formed by overlapping the flat portions 6 and 6 so that the bolt hole 7 on the split shaft portion 2a side and the bolt hole 7 on the split shaft portion b side are aligned. When bolts 11 serving as fastening means are inserted into bolt holes 7 and 7 that are closely fitted to each other and aligned in a straight line, and nuts 12 that are also fastening means are screwed and tightened, as shown in FIG. The divided shaft portions 2a and 2b are integrally coupled and fixed at the joint portion 4 to form the shaft portion 2, and the stabilizer 1 is formed in which the arm portion 3 protrudes in the same direction at right angles from both longitudinal ends of the shaft portion 2. .
[0010]
Next, the operation of the stabilizer 1 shown in FIGS. 1 and 2 will be described.
The force acting on the shaft portion 2 of the stabilizer 1 includes a tensile force and a compressive force generated along the shaft center of the shaft portion 2 and a shaft bending force and shaft center generated in a plane including the shaft center of the shaft portion 2. There are torsional forces generated around.
[0011]
With respect to the tensile force and compressive force along the axial center of the shaft portion 2, the convex portion 9 and the concave portion 10 are fitted to each other, and a surface perpendicular to the flat portions 6 and 6 comes to oppose. . In addition, with respect to the tensile force along the shaft center, the portions on both sides of the bolt hole 7 in the joint portion 4 have a minimum cross-sectional area and the strength is weakened. If the cross-sectional area of the shaft portion other than the intermediate portion 4 is extended in the width direction, the strength against tensile force is increased.
[0012]
Two types of transmission are made to the shaft bending force of the shaft portion 2. That is, with respect to the axial bending force generated in the planes of the flat portions 6 and 6, the two convex portions 9 and the concave portion 10 that are fitted together serve as fulcrums and action points, and maintain the constrained state while maintaining the axis. Transmit bending force. Further, with respect to an axial bending force generated in a plane perpendicular to the plane portion 6 including the axis of the shaft portion 2, first, the end portion of the plane portion 6 serves as a fulcrum and the bolt 11 serves as an action point. This acts as a force that separates and separates the flat portions 6 and 6 from each other, but this axial bending force is simply transmitted only by the fastening force of the bolt 11 and nut 12. The axial bending force is a combined bending force in which the above two types of forces are applied simultaneously, and these actions are performed simultaneously and transmitted.
[0013]
For the torsional force generated around the axis of the shaft part 2, the edge in the width direction of the flat part 6 serves as a fulcrum, and the force to open the flat parts 6 and 6 by receiving the reaction force is a bolt 11 and the fastening force of the nut 12, and as a result, the torsional force is transmitted through the entire plane portion 6. From the above viewpoints, it is desirable that the width of the flat portion 6 is sufficiently large and that the length along the axis of the flat portion 6 is also sufficiently long.
[0014]
In addition, although the convex part 9 and the recessed part 10 of embodiment shown in FIG. 2 are cylindrical shape, these are the cylindrical shape in the location close | similar to the plane part 6, and the location away from the plane part 6 is a cone shape. The convex part and recessed part which are a semicircle shape may be sufficient. However, if the vertical wall as described above does not exist somewhere in the shape, when a horizontal shearing force acts on the convex part or the concave part, a component force in a direction perpendicular to the flat part 6 is generated, and the bolt 11 Since the load on the fastening force of the nut 12 is further increased, it is desirable that a vertical wall surface is always present in the convex portion and the concave portion. Further, the bolt 11 and the nut 12 are not limited to one set, and two or three sets may be fixed through.
[0015]
FIG. 3 is a perspective view showing another example of the embodiment of the intermediate portion 4 of the stabilizer 1 of the present invention in an exploded state, and the same parts as those in FIG.
In the embodiment shown in FIG. 3, each flat surface portion 6 formed in the divided shaft portions 2a and 2b has a T-shaped convex portion 13 on the opposite axis end side with a bolt hole 7 therebetween. An inverted T-shaped recess 14 is formed on the shaft end side. Then, when the two flat portions 6 and 6 are overlapped so that the bolt hole 7 on the split shaft portion 2a side and the bolt hole 7 on the split shaft portion 2b side are aligned, the convex portion 13 on the split shaft portion 2a side is formed. The convex portion 13 on the divided shaft portion 2b side is closely fitted into the concave portion 14 on the divided shaft portion 2a side from the upper side. When bolts (not shown) are inserted into the bolt holes 7 and 7 and the nuts are tightened in this state, the split shaft portions 2a and 2b are integrally coupled and fixed by the intermediate portion 4 to form the stabilizer 1 shown in FIG.
[0016]
In the embodiment shown in FIG. 3, the T-shaped convex portion 13 and the concave portion 14 are fitted to the tensile force and compressive force along the axial center. The force is transmitted by a vertical wall surface or the like, but if the portions on both sides of the bolt hole 7 are projected in the width direction of the intermediate joint portion 4, the strength against the tensile force is increased.
[0017]
With respect to the axial bending force in the plane of the flat portions 6 and 6, the T-shaped convex portion 13 and the concave portion 14 both serve as fulcrums and action points, and the flat portions 6 and 6 are bounded by wall surfaces or the like constrained to each other. The axial bending force generated in the plane perpendicular to the plane portion 6 including the axis of the shaft portion 2 is transmitted in the same manner as in the embodiment of FIG. The end of the portion 6 is a fulcrum, and the bolt inserted into the bolt hole 7 acts as a lever that acts as an action point, and the force is transmitted by the fastening force of the bolt and nut. The torsional force generated around the shaft center of the shaft portion 2 is the same as that of the embodiment of FIG. 2, and the edge in the width direction of the plane portion 6 serves as a fulcrum, and the plane portion 6 receives the reaction force. , 6 is restrained by the fastening force of the bolts and nuts, and transmitted through the entire plane portion 6. Also in this embodiment, two or more sets of bolts and nuts may be fixed through.
[0018]
FIG. 4 is a perspective view showing still another example of the embodiment of the intermediate portion 4 of the stabilizer 1 of the present invention in an exploded state, and is an end on the split side of the split shaft portions 2a and 2b that are split to the left and right. A flange 16 having a flat portion 15 perpendicular to the axis of the divided shaft portions 2a and 2b is fixed to each portion.
[0019]
Both of these flanges 16 are formed with a plurality of (two in FIG. 4) bolt holes 17 penetrating in the vertical direction with respect to the respective plane portions 15. On the other hand, linear protrusions 18 and recesses 19 are formed at positions opposite to each other in the vertical direction. When the flat hole portions 17 of both flanges 16 are brought into contact with each other so that the bolt holes 17 on the split shaft portion 2a side and the bolt holes 17 on the split shaft portion 2b side are aligned, a convex on the split shaft portion 2a side. The portion 18 is closely fitted into the concave portion 19 on the divided shaft portion 2b side, and the convex portion 18 on the divided shaft portion 2b side is closely fitted into the concave portion 19 on the divided shaft portion 2a side. When bolts (not shown) are inserted into the bolt holes 17 and 17 and the nuts are tightened in this state, the split shaft portions 2a and 2b are coupled and fixed by the intermediate portion 4 to form an integrated stabilizer 1.
[0020]
In the embodiment shown in FIG. 4, the tensile force along the axis is transmitted by the fastening force of the bolt and nut inserted through the bolt hole 17 and connecting the flange 16, and the compressive force is It is transmitted via the flat part 15. For the axial bending force, the bolt inserted through the bolt hole 17 with the end of the flange 16 as a fulcrum serves as an action point, and the separating force is transmitted with the fastening force of the bolt and nut supported. The torsional force generated around the shaft center of the shaft portion 2 is transmitted through the wall surface or the like where the convex portion 18 and the concave portion 19 provided in the radial direction of the flange 16 are fitted. The
[0021]
In the embodiment shown in FIG. 4, the convex portion 18 and the concave portion 19 have a pair of linear shapes, but a plurality of these may be arranged, or may not be linear, but may be Y-shaped or cross-shaped. It may be.
[0022]
Moreover, as the stabilizer 1, you may comprise not a solid material but a hollow material. However, if the wall thickness is thin and the strength is insufficient, a tube of an appropriate length having an appropriately larger inner diameter is covered, or conversely, a tube member having a small outer diameter or a solid rod is inserted and then welded. And firmly fixed.
[0023]
【The invention's effect】
The present invention makes it easy to insert the divided shaft part by letting a narrow gap of the vehicle suspension part from the end side that is not divided and provided with the arm part, and abuts and fixes the flat part at the middle part of the vehicle Thus, there is an effect that the stabilizer can be attached to the vehicle very easily.
[0024]
Further, the flat portion of the intermediate portion can be easily and inexpensively manufactured by using an upsetter or a press together.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the entire stabilizer of the present invention.
FIG. 2 is a perspective view showing an example of an embodiment of a stabilizer intermediate portion of the present invention in an exploded state.
FIG. 3 is a perspective view showing another example of the embodiment of the intermediate portion of the stabilizer of the present invention in an exploded state.
FIG. 4 is a perspective view showing still another example of the embodiment of the intermediate portion of the stabilizer of the present invention in an exploded state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Stabilizer 2 Shaft part 2a Divided shaft part 2b Divided shaft part 3 Arm part 4 Joint part 6 Plane part 9 Convex part 10 Concave part 11 Bolt (fastening means)
12 Nut (fastening means)
13 Convex part 14 Concave part 15 Flat part 18 Convex part 19 Concave part

Claims

A stabilizer having arm portions projecting from both longitudinal ends of the shaft portion, has a joint portion that connects the shaft portions divided in the middle of the shaft portion to each other, the joint portion having a flat portion that makes the shaft portions contact each other, and both sides And a concavo-convex portion that is formed on the flat portion of the shaft portion that is divided into two and is fitted to each other, and a fastening means that fixes the shaft portion that penetrates the intermediate portion and that is divided into left and right portions. .