KR20160121049A

KR20160121049A - Ball stud, Assembly structure of nuckle and control arm using the same

Info

Publication number: KR20160121049A
Application number: KR1020150050448A
Authority: KR
Inventors: 김해수
Original assignee: 현대위아 주식회사
Priority date: 2015-04-09
Filing date: 2015-04-09
Publication date: 2016-10-19

Abstract

The present invention relates to an assembly structure of a ball stud and a knuckle and a control arm using the ball stud. More particularly, the present invention relates to an assembly structure of a ball stud and a control arm by which the ball stud can be prevented from cracking, The present invention relates to an assembly structure of a ball stud and a knuckle and a control arm using the same, which can reduce weight and cost of a product.

Description

[0001] The present invention relates to a ball stud and a knuckle and a control arm using the ball stud,

A ball stud is a connecting means that interconnects different members and enables relative movement between the members connected to each other.

2, a conventional ball stud 10 includes a ball 11 formed in a spherical shape and an upper body 11 and a body 12 integrally formed with the ball 11, 11 and the body 12 are further provided with connection portions 13.

The conventional ball stud 10 has a shape in which the body 12 is tapered at a predetermined angle and is coupled to a separate steel insert 14 and inserted into the insertion hole of the first member 20, The ball 11 is ball-jointed to the second member 30 and assembled so that the first member 20 and the second member 30 can be connected.

When the ball stud 10 is inserted into the insertion hole of the first member 20, the body 12 is tapered and a high pressure input is applied to the first member 20 And cracks are generated.

In addition, the steel insert 14 is provided so as to surround the body portion 12, thereby preventing galvanic corrosion that may occur due to a potential difference with the first member 20, It is possible to prevent the ball stud 10 from being detached from the one member 20. However, there is a problem that the ball stud 10 is inefficient in weight reduction.

It is an object of the present invention to provide a ball stud which can prevent a member from being cracked when a ball stud is inserted into a member and a knuckle using the ball stud and a control arm To provide an assembly structure.

Another object of the present invention is to provide an assembly structure of a ball stud and a knuckle and a control arm using the same, which can prevent galvanic corrosion and detachment of a ball stud even when a steel insert is removed.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a ball-stud for connecting two members, comprising: a body inserted into and fastened to a fastening hole of a first member in a cylindrical shape; And a ball formed at one end of the body and ball-joining with the second member, wherein the body has the same diameter as the upper part and the lower part.

In one preferred embodiment of the present invention, the dust ring is provided at one end of the body with a predetermined area extended from the outer circumferential surface to the outside,

The dust ring is larger than the diameter of the fastening hole of the first member and hooked on the upper edge of the fastening hole when the body is inserted into the fastening hole of the first member.

In a preferred embodiment, the dust ring is formed on one surface of the dust ring, and a groove is formed between the first member and the second member so that one side of the dust cover for blocking foreign matter from entering can be inserted.

The present invention also provides an assembly structure of a knuckle and a control arm including a ball stud according to the present invention, a knuckle connected to the body of the ball stud, and a suspension control arm connected to the ball of the ball stud.

In a preferred embodiment, the material of the knuckle is aluminum.

The present invention also provides an automobile equipped with an assembly structure of a knuckle and a control arm according to the present invention.

The present invention has the following excellent effects.

First, according to the assembly structure of the ball stud and the control arm using the ball stud of the present invention, the body of the ball stud is formed into a cylindrical shape having the same diameter as the upper and lower parts, Can be prevented.

According to the assembly structure of the ball stud and the knuckle and the control arm using the ball stud of the present invention, since the dust ring having a predetermined area extended outward from the outer circumferential surface of the one end of the body is provided, even if the steel insert is removed, The detachment of the stud can be prevented, and the weight and cost of the product can be reduced.

1 is a cross-sectional view showing a conventional ball stud.
2 is a cross-sectional view illustrating a ball stud according to an embodiment of the present invention.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

Referring to FIG. 2, the ball stud 100 according to an embodiment of the present invention includes a body 110 and a ball 120 as connecting means for connecting the two members.

The body 110 has a cylindrical shape and is inserted into and fastened to the fastening hole of the first member 210.

Here, the upper and lower diameters of the body 110 are equal to each other.

This is because it is easy to fasten the body 110 to be inserted into the insertion hole of the first member 210 when the diameter of the upper portion and the lower portion of the body 100 are the same, It is possible to prevent the first member 210 from being cracked due to the pressure input.

Particularly, when the first member 210 is a knuckle made of aluminum, it is effective because a crack can be generated even by a small pressure input.

The ball 120 is formed at one end of the body 110 and ball jointed with the second member 220.

The ball 120 may be integrally formed with the body 110 and a connection 130 may be formed between the body 110 and the ball 120.

Further, a dust ring 140 may be further provided at one end of the body 110.

Here, the dust ring 140 is formed so that a predetermined area is extended outward from the outer circumferential surface of one end of the body 110.

Further, the diameter of the string 140 is larger than the diameter of the fastening hole of the first member 210.

Therefore, when the body 110 is inserted into the fastening hole of the first member 210, the lower end of the string 140 is caught on the upper edge of the fastening hole.

That is, the dust ring 140 can be used only with a minimum size to prevent foreign matter from entering, and it is possible to prevent galvanic corrosion caused by a potential difference between the body 110 and the first member 210 It is possible to reduce the weight of the product.

In addition, a groove is formed on the upper surface of the dust ring 140 so that the lower end of the dust cover 150 can be inserted.

Here, the dust cover 150 is a cover that is coupled to surround the outer surface of the ball stud 100 between the first member 210 and the second member 220, and the ball stud 100, Thereby preventing the foreign matter from entering.

That is, one side of the dust cover 150 is inserted into one side of the dust ring 140 to be seated, thereby the dust cover 150 and the dust ring 140 are coupled to each other, It is possible to completely block the inflow of the gas.

The present invention also provides an assembly structure 200 of a knuckle and control arm, which is an assembly of a knuckle and suspension control arm fastened by a ball stud 100 according to the present invention.

Here, the knuckle corresponds to the first member 210 described above, and the suspension control arm corresponds to the second member 220 described above. In general, the knuckle serves to fix the wheel, The control arm serves to support the load transmitted from the outside during driving.

Further, the knuckle may be formed of an aluminum knuckle to reduce the weight of the final product.

This is because even if the knuckle is constituted by an aluminum knuckle, the ball stud 100 of the present invention can be effectively fastened without fear of cracking since the ball stud 100 does not generate a pressing force in the fastening.

As described above, the assembly structure of the knuckle and the control arm assembled with the ball stud and the ball stud according to the present invention can be easily fastened to the knuckle, so that cracking of the knuckle due to pressure input can be prevented, Dust rings are provided to prevent galvanic corrosion and detachment of the ball stud.

Further, the present invention further provides an automobile equipped with the above-described assembling structure, thereby making it possible to reduce the weight and cost of the product.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the present invention. Various changes and modifications will be possible.

100: ball stud 110: body
120: ball 130: connection
140: Dust ring 150: Dust cover
210: first member 220; The second member

Claims

A ball-stud connecting the two members,
A body inserted and fastened to the fastening hole of the first member in a cylindrical shape; And
And a ball formed at one end of the body and ball-joining with the second member,
Wherein a diameter of the upper portion and a diameter of the lower portion of the body are equal to each other.

The method according to claim 1,
A dust ring having a predetermined area extended from an outer circumferential surface to an outer side is provided at one end of the body,
Wherein the longer string is larger than a diameter of a fastening hole of the first member and hooked on an upper edge of the fastening hole when the body is inserted into the fastening hole of the first member.

3. The method of claim 2,
On one surface of the dust ring
Wherein a groove is formed between the first member and the second member so that one side of the dust cover for blocking the inflow of foreign matter can be inserted therein.

A ball stud according to any one of claims 1 to 3;
A knuckle connected to the body of the ball stud; And
And a suspension control arm connected to the ball of the ball stud.

5. The method of claim 4,
Wherein the knuckle is made of aluminum.

An automobile equipped with the knuckle and control arm assembly structure of claim 4.