CN100465007C

CN100465007C - Hollow stabilizer and manufacturing method of hollow stabilizer

Info

Publication number: CN100465007C
Application number: CNB031104835A
Authority: CN
Inventors: 梅野纯; 町田浩; 仲村崇广
Original assignee: Japan Clockwork Co ltd
Current assignee: Japan Clockwork Co ltd
Priority date: 2003-04-15
Filing date: 2003-04-15
Publication date: 2009-03-04
Anticipated expiration: 2023-04-15
Also published as: CN1537740A

Abstract

A hollow stabilizer and its manufacture method are disclosed. A flat installation part for installing the control link of stabilizer is made at the end of said hollow stabilizer. Said control link has screw bolt and water-proof cover. Said installation part has the first fastening surface at the side of nut and the second fastening surface opposite to said dust-proof cover. The center of wall thick between both fastening surfaces is more close to the second fastening surface than the center of stabilizer end.

Description

The manufacture method of hollow stabiliser and hollow stabiliser thereof

Technical field

The present invention relates to be equipped on the hollow stabiliser of vehicles such as automobile and the manufacture method of hollow stabiliser thereof.

Background technology

The stabiliser that uses for raising car body side-sway rigidity has the function of restraining the car body side-sway when travelling.For example shown in 8-No. 127220 communiques of Japanese patent laid-open, for controlling bonded assembly schemes such as chain link and suspension arm by stabiliser in a kind of end of stabiliser.

The end of stabiliser and stabiliser control chain link can carry out oscillating type by the Hooke's coupling in ring nest joint etc. and link.Enclose in the ring nest joint lubricant is arranged.Like this, in order to prevent that lubricant is to the outside outflow in ring nest joint and in order to prevent that exterior dust and moisture from entering the inside in ring nest joint, is provided with cover of dust.

During travelled by vehicle, according to different condition of road surfaces, stabiliser control chain link is swung with respect to the stabiliser end.During this swing, in a single day cover of dust contacts with stabiliser, then becomes the reason of cover of dust damage.Therefore, in the scope of stabiliser control chain link swing, must avoid the collision of cover of dust and stabiliser.

For fear of cover of dust and stabiliser collision, the bolt length by lengthening stabiliser control chain link can increase the distance of cover of dust to the stabiliser end.But if add overbolt length, then the weight of stabiliser control chain link becomes big.And stabiliser control chain link may produce and surrounding member (as constituting the member that suspends etc.) collision, so bad.

And in recent years, the end of stabiliser and stabiliser control chain link are expected to realize miniaturization.Particularly require the occasion of the bolt length of restriction stabiliser control chain link, be expected to reduce the thickness of stabiliser control chain link installation portion.

During stabiliser that employing is made of middle real material, can installation portion be configured as required thickness by machine up etc.Yet, when adopting the hollow stabiliser, owing to be to form above-mentioned installation portion, therefore, aspect the machine up of installation portion, have restriction from the relation of the wall thickness of pipe etc. by the end of pipe is flattened.Like this, in the occasion that the length of bolt is restricted, the degree of freedom of installation portion thickness reduces, and might can not get required installation portion thickness.

Summary of the invention

For this reason, the object of the invention is, provides a kind of and avoids cover of dust and stabiliser contact and can form hollow stabiliser with the installation portion of the corresponding thickness of bolt length.

Hollow stabiliser of the present invention has: a pair of support arm, the installation portion that is positioned at the torsion portion of this a pair of arm room and is formed at the stabiliser control chain link installation usefulness of described arm end, in being formed at the through hole of described installation portion, insert the bolt of stabiliser control chain link, by nut this is bolted to described installation portion with this screw threaded, it is characterized in that

On installation portion, form and make the nut part enter the degree of depth or packing ring to enter the recess of the degree of depth and be positioned at the inboard of this recess and the 1st fastening of configuration nut, form than the shallow recess of recess on the 1st fastening opposite side of installation portion and be positioned at the inboard of this recess and the 2nd fastening of the cover of dust of configuration stabiliser control chain link, the wall thickness center between the 1st fastening and the 2nd fastening is close to the 2nd fastening side more than the center of stabiliser end.

Adopt the present invention,, also can avoid the collision of cover of dust and stabiliser end even reduce the wall thickness of installation portion.And, can set the required thickness of described installation portion according to the bolt length that stabiliser is controlled chain link, can shorten the length of bolt, can alleviate the weight of bolt.

The manufacture method of hollow stabiliser of the present invention comprises: promptly the inner peripheral surface or the outer peripheral face of the end of pipe are processed to reduce the operation of this end wall thickness by the material to the hollow stabiliser; And radially flatten the end of the pipe by will having reduced wall thickness, the operation of described installation portion of being decided the offset flat shape of thickness to form.

Adopt the manufacture method of hollow stabiliser of the present invention,, can form the installation portion of desired thickness by flattening the end of pipe.In the present invention, owing to before the end of flattening pipe, reduced the wall thickness of end in advance,, can not make the width of installation portion wide even therefore described installation portion is flattened into required thickness yet.

Description of drawings

Fig. 1 has the vehicle of hollow stabiliser of the present invention the 1st embodiment with the block diagram of stabilizer arrangement for expression.

Fig. 2 is the cutaway view of the vehicle of the F2-F2 line in Fig. 1 with stabilizer arrangement.

Fig. 3 is the birds-eye view of expression hollow stabiliser end shown in Figure 1.

Fig. 4 is the cutaway view of the hollow stabiliser end of the F4-F4 line in Fig. 3.

Fig. 5 is the birds-eye view of the stabiliser end of expression the present invention the 2nd embodiment.

Fig. 6 is the cutaway view of the stabiliser end of the F6-F6 line in Fig. 5.

Fig. 7 is the birds-eye view of the stabiliser end of expression the present invention the 3rd embodiment.

Fig. 8 is the cutaway view of the stabiliser end of the F8-F8 line in Fig. 7.

Fig. 9 is the cutaway view of the end of the pipe that uses in the stabiliser shown in Figure 7.

The cutaway view of the end of the pipe that uses in the stabiliser of Figure 10 for expression the present invention the 4th embodiment.

The specific embodiment

Below with reference to Fig. 1 to Fig. 4 the present invention the 1st embodiment is described.

Vehicle shown in Figure 1 has hollow stabiliser 11 and a pair of stabiliser control chain link 12 with stabilizer arrangement 10.Stabiliser 11 has pair of right and

left support arm

13,14 and is positioned at torsion portion 15 of 13,14 of this a pair of support arms etc.At the both ends of stabiliser 11 11a is that the leading section of

support arm

13,14 is equipped with stabiliser control chain link 12 respectively the installation portion 20 of usefulness is installed.

Torsion portion 15 extends along the Width of car body (not shown).Torsion portion 15 for example is installed on the member of car body side by rubber bush 21 grades.The end 12a of stabiliser control chain link 12 is installed on the member of axletree side.

When turn inside diameter travels etc., when having occurred the anti-phase input in the left and right sides on each

support arm

13,14, torsion portion 15 is reversed, produced the effect of restraining the car body side-sway thus by support arm 13,14.In addition, also torsion portion 15 can be installed on the member of axletree side sometimes, the end 12a that stabiliser is controlled chain link 12 is installed on the member of car body side.

Stabiliser control chain link 12 comprises bar-shaped con-rod only 30 and ring nest joint 31.As shown in Figure 2, ring nest joint 31 comprises: have globular part 32 bolt 33, be formed with bellmouth 35, the shell 36 of accommodating bellmouth 35, cover of dust 37 and the nut 38 etc. in the hole 34 of inserting globular part 32.

Nut 38 screws togather with the threaded portion 39 of bolt 33.Be formed with the flange part 40 that protrudes to bolt 33 external diameter directions at

globular part

32 and 39 of threaded portions.Packing ring 41 both can be integrally formed with nut 38, also can with nut 38 split type settings.Con-rod only 30 is fixed on the shell 36.

Bolt 33 and shell 36 are that the center is free to rotate with globular part 32 mutually, simultaneously for example can be along the arrow R direction among Fig. 2 fascinate (swing).Cover of dust 37 elastomeric materials by Free Transforms such as rubber or neoprene constitute, and are set between the open end 45 and flange part 40 of shell 36.

Supply with lubricants such as butter to the globular part 32 and the contact site of bellmouth 35, can make globular part 32 and bellmouth 35 turn round smoothly and swing.Cover of dust 37 has and prevents that above-mentioned lubricant is to the ring nest joint 31 outside functions that flow out with prevent that the foreign matter of dust or water etc. from invading the in-to-in function from the outside in ring nest joint 31.

The material of hollow stabiliser 11 for example can adopt the pipe 50 of the steel that is equivalent to spring steel composition formation.This pipe 50 is configured as the shape that formalizes by tube bending tool.Is that radially flatten

support arm

13,14 end separately by using punching machine or forging apparatus with the both ends 11a of stabiliser 11, forms the installation portion 20 of offset flat shape as shown in Figure 3 and Figure 4.Be formed with the taper portion 51 that reduces thickness from the hollow space 11b that manages 50 former states to installation portion 20 gradually at the end of stabiliser 11 12a.

Installation portion 20 at the both ends 11a of the stabiliser 11 of offset flat shape is formed with the through hole 60 that thickness direction connects.Inserting bolt 33 in this through hole 60 is controlled chain link 12 with stabiliser and is installed on the installation portion 20 by screwing nut 38.

Installation portion 20 has in the face of the 1st fastening 61 of nut 38 sides with in the face of the 2nd fastening 62 of cover of dust 37 sides.As shown in Figure 4, be formed at the inboard of the recess 65 of the depth H 1 on the installation portion 20 for the 1st fastening 61.This recess 65 has at least the depth H 1 that can be packed in described nut 38 and packing ring 41 parts.The 1st fastening 61 and packing ring 41 butts.In addition, also can be without packing ring 41 with nut 38 and the 1st fastening 61 butt.

Be formed at inboard for the 2nd fastening 62 than the recess 70 of the depth H 2 of described recess 65 shallow several mm.The 2nd fastening the 62 end face 40a butt with the flange part 40 of bolt 33.The 1st fastening 61 and the 2nd fastening 62 wall thickness T 1 is exactly the actual (real) thickness of installation portion 20.The 1st recess 65 to the 2 recesses 70 are shallow.Like this, the 1st fastening 61 and the 2nd fastening 62 wall thickness center C is close to the 2nd fastening 62 side more than the center X of stabiliser end 11a.

Adopt this hollow stabiliser 11, compare with traditional stabiliser (the wall thickness center C of installation portion 20 is consistent with the center of stabiliser end 11a) and can strengthen from cover of dust 37 to the distance between the 11a of stabiliser end.Like this, even stabiliser control chain link 12 swings in the travelled by vehicle also can be avoided contacting of cover of dust 37 and stabiliser end 11a.

And, on the 1st fastening 61, be formed with the recess 65 of depth H 1, on the 2nd fastening 62, be formed with the recess 70 of depth H 2, so fastening 61,62 thickness T 1 is littler than the thickness T 2 (with reference to Fig. 4) of stabiliser end 11a.Like this, compare with the occasion that is not formed with

recess

65,70 and can reduce the distance of nut 38, reduce the length of bolt 33 to 40 of flange parts.In other words, in the predetermined occasion of bolt 33 length, can set the thickness T 1 of installation portion 20 according to the length of bolt 33.

Fig. 5 and Fig. 6 represent the 2nd embodiment of the present invention.In the present embodiment, the 2nd fastening 62 height with the outside 20a of stabiliser end 11a is identical.That is, form outside 20a flush state with installation portion 20 for the 2nd fastening 62.In addition structure is identical with the installation portion 20 of the 1st embodiment.In this 2nd embodiment, the 1st fastening 61 and the 2nd fastening 62 wall thickness center C also is that the center than stabiliser end 11a is close to the 2nd fastening 62 side more.

Fig. 7 to Fig. 9 represents the 3rd embodiment of the present invention.The installation portion 20 ' of present embodiment has the 1st fastening 61 and the 2nd fastening 62 with the outside 20a equal height of stabiliser end 11a.The thickness of installation portion 20 ' is T1.

In order to form this installation portion 20 ', for example shown in Figure 9, by lathe etc. the outer peripheral face 50b as the end face 50a of the pipe 50 of the material of hollow stabiliser 11 is carried out machine up to reduce the wall thickness of end face 50a.Use punching machine etc. will manage 50 end face 50a then and radially flatten, decided the installation portion 20 ' of the flats of thickness T 1 to form.

In addition, as shown in figure 10, after the inner peripheral surface 50c cutting that will manage 50 end face 50a,, also can form the installation portion 20 ' of deciding thickness T 1 shown in Figure 8 by end face 50a is radially flattened.As shown in this embodiment,, on the inner peripheral surface 50c of pipe 50, there is the occasion etc. of electric welded steel pipe of the weld seam of axis direction,, also weld seam can be removed simultaneously by inner peripheral surface 50c is cut if cut to managing 50 inner peripheral surface 50c.

Claims

1. a hollow stabiliser (11) has:

A pair of support arm (13,14),

Be positioned between this a pair of support arm (13,14) torsion portion (15) and

The stabiliser control chain link (12) that is formed at the end (11a) of described support arm (13,14) is installed the installation portion (20) of usefulness,

In the through hole that is formed at described installation portion (20) (60), insert the bolt (33) of described stabiliser control chain link (12), this bolt (33) be fixed on described installation portion (20), it is characterized in that by the nut (38) that screws togather with this bolt (33),

Go up to form at described installation portion (20) and to make described nut (38) part enter the 1st fastening (61) that the degree of depth or packing ring (41) enter first recess (65) of the degree of depth and be positioned at the inboard of this first recess (65) and dispose described nut (38),

On the opposite side of the described the 1st fastening (61) of described installation portion (20), form than shallow second recess (70) of described first recess (65) and the 2nd fastening (62) that are positioned at the inboard of this second recess (70) and dispose the cover of dust (37) of described stabiliser control chain link (12)

Wall thickness center (C) between the described the 1st fastening (61) and the 2nd fastening (62) is close to the 2nd fastening (62) side more than the center (X) of stabiliser end (11a).