JP3915080B2 - Split type stabilizer - Google Patents

Description

【００１６】
また、トーション部材２５を直線状に形成したが、これに限定するものではなく、任意な形状に曲げ加工してもよいことはもちろんである。
また、溶接２９により取付けたが、これに限定せず、圧入してもよいことはもちろんである。
【００１７】
【発明の効果】
以上詳細に説明したように、本発明に係る分割形スタビライザによれば、所望の形状に簡単に組み立てることができ、しかも軽量にすることができる。
さらに、トーション部材の両端にそれぞれ固定した連結部材の端部とアーム部材の端部に固定した締付部材の端部との結合部には、ゴムなどの応力緩和材がプレストレスの状態で介在しているため、トーション部材に確実に、捩り力を発生させることができ、スタビライザ効果を発揮することができる。しかも、耐久性を大幅に向上させることができるなどの効果がある。
【図面の簡単な説明】
【図１】本発明に係る分割形スタビライザの一実施例を示す平面図である。
【図２】図１の連結部材、締付部材、および応力緩和材の連結状態を示す断面図である。
【図３】図１に示す分割形スタビライザを分解した平面図である。
【図４】図１に示すアーム部材に結合部材および目玉部材を取付けた側面図である。
【図５】従来の一体形スタビライザを装着した車体支持機構を示す概略平面図である。
【図６】従来の分割形スタビライザを装着した車体支持機構を示す概略斜視図である。
【符号の説明】
２５ トーション部材
２６，２７ 連結部材
２６Ａ，２７Ａ リング状嵌合部
２８ つづみ状透穴
３０，３１ アーム部材
３２，３３ 締付部材
３４，３５ 目玉部材
３４Ａ，３５Ａ リング状車体側嵌合部
３６ 円筒状透穴
３７，３８ 応力緩和材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a split type stabilizer that can reduce rolling during traveling of an automobile, stabilize a vehicle body posture, and improve stability of steering and traveling.
[0002]
[Prior art]
In general, this type of stabilizer is formed in a U-shaped hollow pipe material made of spring steel, medium carbon steel or the like, as shown in FIG. 2A of Japanese Utility Model Laid-Open No. 1-163228. An integrated stabilizer or a split stabilizer has been proposed as disclosed in Japanese Utility Model Laid-Open No. 5-12210.
[0003]
FIG. 5 is a schematic plan view showing a vehicle body support mechanism equipped with a conventional integrated stabilizer. In the figure, reference numeral 1 denotes a body frame, and the body frame 1 supports a cargo bed, an air suspension mechanism, and the like. Reference numeral 2 denotes an air spring. The air spring 2 can keep the vehicle posture constant with respect to a change in load from an empty vehicle to a loaded vehicle by controlling the supply and discharge of air from the outside. Reference numeral 3 denotes a differential, and the differential 3 absorbs the difference in rotational speed between the left and right drive wheels due to the function of distributing the rotational driving force transmitted by the propeller shaft (not shown) equally to the left and right axles and turning of the vehicle. And has a function of turning smoothly. Reference numeral 4 denotes a rear axle housing, and 5 denotes a rear axle housing fixing member. The rear axle housing fixing member 5 includes an upper fixing member, a lower fixing member, a U-shaped bolt and a nut (all not shown). Is fixed to the following support beam. Reference numeral 6 denotes a torque rod. The torque rod 6 regulates the movement of the rear axle housing 4 in the front-rear direction (front-rear direction of the vehicle). Reference numeral 7 denotes a support beam, and the lower portion of the air spring 2 is fixed to the support beam 7.
[0004]
Reference numeral 8 denotes a bracket. The bracket 8 includes a frame fixing portion (not shown) and a torque rod fixing portion (not shown). One end of the frame fixing portion (not shown) is attached to the vehicle body by a bolt (not shown). The other end of the torque rod 6 is fixed to a torque rod fixing portion (not shown) by a bolt (not shown) and a nut (not shown). Reference numeral 9 denotes a stabilizer. The stabilizer 9 is formed by bending a hollow member such as a pipe member into a U-shape to prevent rolling of the vehicle body. One end of each of the stabilizers 9 is fixed to the bracket 10 with bolts 11 and nuts 12. Reference numeral 13 denotes an anti-vibration bush, and the anti-vibration bush 13 includes an upper metal fitting with a semi-circular portion, a lower metal fitting with an omission, and a cylindrical elastic body (all not shown).
Reference numeral 14 denotes a V rod. One end of the V rod 14 is attached to the differential 3 and the other end is attached to the cross beam 15 to restrict the movement of the differential 3 in the front-rear direction (front-rear direction of the vehicle). The cross beam 15 is for reinforcing the body frame 1. Reference numeral 16 denotes a V rod mounting bracket. The V rod mounting bracket 16 fixes one end of the V rod 14 to the differential 3.
[0005]
FIG. 6 is a schematic perspective view showing a vehicle body support mechanism equipped with a conventional divided stabilizer. In the drawing, 20A and 20B (20B not shown) are brackets, and one end of each of the brackets 20A and 20B (20B is not shown) is fixed to the vehicle body 1. Reference numeral 21 denotes a divided stabilizer. The divided stabilizer 21 includes a hollow torsion member 21A extending in the lateral direction of the vehicle and arm members 21B and 21C having I-shaped cross sections extending in the longitudinal direction of the vehicle. Arm members 21B and 21C are attached to the end of the member 21A, respectively, and are formed in a U shape as a whole. 22A and 22B are jocque absorbers.
A rear axle housing fixing member 5 is attached to an intermediate portion of the I-shaped cross-section arm members 21B and 21C of the split stabilizer 21 and the other ends of the joc absorbers 22A and 22B are attached.
[0006]
[Problems to be solved by the invention]
However, it is difficult to bend a conventional stabilizer, particularly an integrated stabilizer, into a U-shaped desired shape. On the other hand, the divided stabilizer has a problem that it is difficult to connect one end of the hollow torsion member 21A and one end of the arm members 21B and 21 having an I-shaped cross section, and the connecting portion is easily damaged.
[0007]
Accordingly, an object of the present invention is to provide a split stabilizer that can be easily assembled into a desired shape, can be reduced in weight, and can greatly improve durability.
[0008]
[Means for Solving the Problems]
A split stabilizer according to the present invention includes a hollow torsion member extending in a lateral direction of a vehicle and having attachment portions of connecting members fixed to both ends, and a fastening member extending in a longitudinal direction of the vehicle. Two hollow arm members fixed to the other end, and a cylindrical stress relieving material made of rubber or the like. In the divided stabilizer formed by connecting the stress relieving material between the coupling portion and the ring-shaped fitting portion of the connecting member and forming a U-shape as a whole, the ring-shaped fitting portion of the connecting member forming a clutch-like Toruana, this drum-shaped Toruana the stress absorbing material is press-fitted in the center hole of the stress relaxation member is bonded portion of the member with the clamping is inserted into the stress absorbing material in which the pre-stress is given.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a plan view showing an embodiment of a divided stabilizer according to the present invention, FIG. 2 is a partial detailed sectional view of FIG. 1, and FIG. 3 is an exploded plan view of the divided stabilizer shown in FIG. FIG. 4 is a side sectional view showing details of the arm member of FIG. 1 to 4, reference numeral 25 denotes a hollow torsion member, and the torsion member 25 is disposed in the lateral direction of the vehicle. Reference numerals 26 and 27 denote connecting members. The connecting members 26 and 27 include ring-shaped fitting portions 26A and 27A and mounting portions 26B and 27B, respectively. A hole 28 (see FIG. 3) is formed. The attachment portions 26B and 27B are fixed to the end portion of the torsion member 25 by welding 29, respectively. 30 and 31 are hollow arm members, and the arm members 30 and 31 are arranged in the longitudinal direction of the vehicle.
[0010]
32 and 33 are tightening members for holding the tightening, and the tightening members 32 and 33 are respectively composed of coupling portions 32A and 33A (see FIGS. 2, 3 and 4) and mounting portions 32B and 33B. The coupling portions 32A and 33A (see FIGS. 2, 3, and 4) are provided with screw holes (see FIGS. 2, 3, and 4). The attachment portions 32B and 33B are fixed to one end portions of the arm members 30 and 31 by welding 29, respectively. Reference numerals 34 and 35 denote eyeball members. The eyeball members 34 and 35 include ring-shaped vehicle body side fitting portions 34A and 35A and attachment portions 34B and 35B, respectively. The ring-shaped vehicle body side fitting portions 34A and 35A include A cylindrical through hole 36 (see FIGS. 3 and 4) is formed. The cylindrical through hole 36 (see FIGS. 3 and 4) is provided with a vehicle body 1 (see FIGS. 5 and 5) via a vibration absorbing member (not shown). (See FIG. 6). The attachment portions 34B and 35B are fixed to the other ends of the arm members 30 and 31 by welding 29, respectively. 37 and 38 are stress relaxation materials such as rubber and urethane. The stress relaxation materials 37 and 38 are formed in a cylindrical shape, for example. Reference numerals 39A and 39B denote gold, and reference numerals 40A and 40B denote fastening screws.
[0011]
In the state where the stress relieving members 37 and 38 are press-fitted into the joint-like through holes 28 of the ring-shaped fitting portion 26A of the connecting member 26, the cross-sectional shape thereof is as shown in FIG. Although the compression is small, the compression in the middle (center) portion is successively formed higher and becomes a stitch shape.
And it continues by the torsional moment (upward / downward load P1 (refer FIG. 1) * length of the arm members 30 and 31) when the vertical load P1 (refer FIG. 1) is applied to the eyeball members 34 and 35. The stress relieving materials 37 and 38 that are compressed into a ridge shape are sufficiently durable and have a strength that generates a torsional force on the torsion member 25.
Further, the bending moment when the lateral load P2 (see FIG. 1) is applied to the eyeball members 34 and 35 (lateral load P2 (see FIG. 1) × the length of the arm members 30 and 31 (see FIG. 1)). ) To reduce the stress generated in the fastening members 32 and 33 by the stress relieving materials 37 and 38 compressed in a continuous manner (for example, the Shower hardness is 85 degrees or more).
[0012]
Next, an assembling process of the divided stabilizer having the above configuration will be briefly described. First, the attachment portion 34B of the eyeball member 34 is attached to one end portion of the arm member 30 by, for example, welding 29, and the attachment portion 32B of the tightening member 32 is attached to the other end portion of the arm member 30, for example, by welding 29. . Similarly, the attachment portion 35B of the eyeball member 35 is attached to one end portion of the arm member 31 by, for example, welding 29, and the attachment portion 33B of the fastening bracket 33 is attached to the other end portion of the arm member 31, for example, by welding 29. Install. Further, the attachment portion 26 </ b> B of the connecting member 26 is attached to one end portion of the torsion member 25 by, for example, welding 29. Similarly, the attachment portion 27 </ b> B of the connecting member 27 is attached to the other end portion of the torsion member 25 by, for example, welding 29.
[0013]
Next, the coupling portion 32A of the tightening member 32 is inserted into the center hole of the stress relaxation material 37, and the stress relaxation material 37 is attached to the coupling portion 32A. Similarly, the coupling portion 32A of the fastening bracket 33 is inserted into the center hole of the stress relaxation material 37, and the stress relaxation material 38 is attached to the coupling portion 32A. Then, the stress relieving material 37 is press-fitted into the continuous through hole 28 of the ring-shaped fitting portion 26A of the connecting member 26 attached to one end portion of the torsion member 25, and a tightening screw is inserted through the metal 39A. 40A is screwed into the screw hole of the coupling portion 32A and fixed. Similarly, the stress relieving material 38 is press-fitted into the joint-shaped through hole 28 of the ring-shaped fitting portion 27A of the connecting member 27 attached to the other end of the torsion member 25, and tightened via the abutment 39B. The screw 40B is screwed into the screw hole of the coupling portion 33A and fixed. For this reason, the stress relaxation materials 37 and 38 can give prestress by the joint-like through-holes 28 and 28 of the ring-shaped fitting portions 26A and 27A, respectively.
[0014]
The divided stabilizer configured as described above includes the connecting member 26, the stress relieving material 37, and the tightening member 32 when a vertical load and / or a lateral load is applied to the eyeball members 34 and 35. The coupling portion, and the coupling portion including the coupling member 27, the stress relaxation member 38, and the tightening member 33 can surely generate a torsional force on the torsion member 25, and can exhibit a stabilizer effect.
It should be noted that stress analysis (spring constant, maximum bending stress of the arm portion, torsional portion of the torsional portion of the conventional integrated stabilizer and the split-type stabilizer of the present invention (when the hardness of the stress relaxation members 37 and 38 is 90 degrees). The results of the maximum torsional stress are shown in Table 1.
[0015]
[Table 1]

[0016]
Further, although the torsion member 25 is formed in a straight line shape, the present invention is not limited to this, and it is needless to say that the torsion member 25 may be bent into an arbitrary shape.
Moreover, although it attached by welding 29, it is needless to say that it is not limited to this and may be press-fitted.
[0017]
【The invention's effect】
As described above in detail, according to the split stabilizer according to the present invention, it can be easily assembled into a desired shape and can be reduced in weight.
Further, a stress relaxation material such as rubber is interposed in a prestressed state at the joint between the end of the connecting member fixed to both ends of the torsion member and the end of the fastening member fixed to the end of the arm member. Therefore, a torsional force can be reliably generated in the torsion member, and a stabilizer effect can be exhibited. Moreover, there is an effect that the durability can be greatly improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a divided stabilizer according to the present invention.
2 is a cross-sectional view illustrating a connection state of the connection member, the fastening member, and the stress relaxation material of FIG. 1;
3 is an exploded plan view of the split stabilizer shown in FIG. 1. FIG.
4 is a side view in which a coupling member and an eyeball member are attached to the arm member shown in FIG. 1. FIG.
FIG. 5 is a schematic plan view showing a vehicle body support mechanism equipped with a conventional integrated stabilizer.
FIG. 6 is a schematic perspective view showing a vehicle body support mechanism equipped with a conventional split stabilizer.
[Explanation of symbols]
25 torsion members 26, 27 connecting members 26A, 27A ring-shaped fitting portions 28 pinched through holes 30, 31 arm members 32, 33 tightening members 34, 35 eyeball members 34A, 35A ring-shaped vehicle body side fitting portion 36 cylinder Shaped through holes 37, 38 Stress relieving material

Claims (1)

A hollow torsion member that extends in the lateral direction of the vehicle and that has fixing portions for connecting members fixed at both ends thereof, and that extends in the longitudinal direction of the vehicle, and that fixes the fastening member mounting portion at one end. It has two hollow arm members that fix the attachment part of the eyeball member at the end, and a cylindrical stress relieving material made of rubber or the like, and the coupling part of the tightening member and the ring shape of the connecting member In the divided stabilizer formed by connecting the above-mentioned stress relieving material between the fitting portion and forming a U-shape as a whole,
A joint-shaped through hole is formed in the ring-shaped fitting portion of the connecting member, the stress relaxation material is press-fitted into the joint-shaped through hole, and a coupling portion of the tightening member is inserted into the center hole of the stress relaxation material. segmented stabilizer but are inserted, the aforementioned stress relaxation material, characterized that you have given prestressed.

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