KR101779382B1 - Ball Joint with Supporting Rib - Google Patents

Ball Joint with Supporting Rib Download PDF

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Publication number
KR101779382B1
KR101779382B1 KR1020150151929A KR20150151929A KR101779382B1 KR 101779382 B1 KR101779382 B1 KR 101779382B1 KR 1020150151929 A KR1020150151929 A KR 1020150151929A KR 20150151929 A KR20150151929 A KR 20150151929A KR 101779382 B1 KR101779382 B1 KR 101779382B1
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KR
South Korea
Prior art keywords
ball
support
engaging
distal end
receiving
Prior art date
Application number
KR1020150151929A
Other languages
Korean (ko)
Other versions
KR20170050424A (en
Inventor
김상현
이장원
Original Assignee
한국오므론전장주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국오므론전장주식회사 filed Critical 한국오므론전장주식회사
Priority to KR1020150151929A priority Critical patent/KR101779382B1/en
Publication of KR20170050424A publication Critical patent/KR20170050424A/en
Application granted granted Critical
Publication of KR101779382B1 publication Critical patent/KR101779382B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0604—Construction of the male part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/24—Steering systems, e.g. steering rods or columns

Abstract

The present invention relates to a ball joint having a support rib for preventing a ball from being separated from a ball retaining portion even if external pressure is transmitted to the ball stud in a state where the ball portion of the ball stud is inserted into the ball retaining portion. In the present invention, when the releasing pressure is applied to the ball stud in a state where the ball stud is coupled to the ball retaining portion, the retaining portion of the ball retaining portion is supported by the supporting protrusion of the supporting rib to restrict the elastic deformation of the retaining portion, There is an effect to be prevented.

Description

[0001] Ball Joint with Supporting Rib [0002]

The present invention relates to a ball joint having a support rib, and more particularly, to a ball joint having a support rib so as to prevent the ball from being separated from the ball support portion even if external pressure is transmitted to the ball stud in a state where the ball portion of the ball stud is inserted into the ball support portion The present invention relates to a ball joint having a rib.

Generally, ball joints are widely used in automotive steering, suspension systems, etc. Recently, they have also been used in AHLS (Auto Headlamp Leveling System), which adjusts the angle of irradiation of a headlamp.

1 is a cross-sectional view of a conventional ball joint. Referring to FIG. 1, a conventional ball joint 1 includes a ball stud 10 having a ball 12 and a shaft 14, an inlet 24 and a receiving portion 22 And a housing 30 that supports the outside of the ball holding portion 20 by inserting the ball holding portion 20 and the ball holding portion 20 having the ball holding portion 20 therein. The circle passing through the center of the ball 12 and cut perpendicularly to the longitudinal direction of the shaft 14 is referred to as a circle and the circumference of the circle is referred to as a center.

The ball holding portion 20 is made of a material having elasticity such as urethane or the like, and an inlet 24 is formed in the upper portion of the receiving portion 22. The inlet 24 is formed to be smaller than the center of the receiving portion 22 and the ball portion 12, and is configured to have elasticity. A locking portion 22a is formed so as to be in close contact with the outer peripheral edge of the ball portion 12 at a position spaced upward from the central portion of the accommodating portion 22. [

When the ball portion 12 of the ball stud 10 is inserted into the ball catching portion 20, first, the center portion of the ball portion 12 forcibly opens the inlet 24 of the ball catching portion 20, 20 into the accommodating portion 22 of the housing. When the ball 12 is inserted into the receiving portion 22, the center portion of the ball 12 elastically deforms the receiving portion 22 in the outward direction of the receiving portion 22, . When the ball portion 12 is inserted into the receiving portion 22, the ball portion 12 freely rotates in a state where the ball portion 12 is engaged with the receiving portion 22. Thus, the shaft 14 is rotated with respect to the ball holding portion 20 Can be rotated to have various degrees of freedom.

Since the engaging portion 22a must be elastically deformed when the ball portion 12 is inserted into the receiving portion 22, the engaging portion 22a is inserted into the receiving portion 22 by the operator. It can not be constructed so as to have a strong elastic force not less than a pressure capable of being applied. Accordingly, when the shaft 14 rotates and transmits a strong pressure to the ball 12, the ball 12 may be easily disengaged from the receiving portion 22. Thus, when the ball 12 is received in the receiving portion 22 , It is impossible to control the irradiation angle of various vehicle parts connected to the shaft 14, for example, the head lamp, thereby causing a traffic accident.

Korean Patent Publication No. 1996-0011180

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ball joint having a support rib for preventing a ball from being detached from a receiving portion even if the shaft transmits a strong pressure to the ball portion.

In order to attain the above object, the present invention provides a ball-shaped ball-shaped ball-shaped ball-shaped ball-shaped ball-shaped ball-shaped ball-shaped ball- A ball stud including a shaft extending in an opposite direction of the ball portion; A ball holding portion having a receiving portion formed concavely to receive the first ball portion and a holding portion extending from the opened side of the receiving portion toward the second ball portion so that the first ball portion is not released; A support rib having one side located inside the accommodating portion and the other side being formed long inward of the engaging portion; And a housing enclosing the outside of the ball support portion, wherein the engaging portion is formed of an elastic material, and when an insertion pressure is applied to the first ball portion located outside the receiving portion toward the receiving portion, And the first ball portion is inserted into the receiving portion. The ball joint according to any one of claims 1 to 3, wherein the holding portion to provide.

The supporting rib may include a supporting portion formed to be long inward of the retaining portion in the accommodating portion and a supporting protrusion bent in the direction of the end of the retaining portion at the end of the supporting portion located inside the retaining portion, When the first ball portion is inserted into the receiving portion and the releasing pressure in the opposite direction of the receiving portion is applied to the second ball portion after the second ball portion is engaged with the engaging portion, Wherein a distal end portion of the engaging portion is elastically deformed while being supported by the supporting protrusion portion so that the distal end portion of the engaging portion is prevented from being separated from the second ball portion Wherein the support rib is formed of a metal plate.

Further, the support rib is formed at the end portion of the support portion so that the auxiliary protrusion is bent in a direction opposite to the direction in which the support protrusion is bent.

In addition, a plurality of support ribs are disposed along the inner circumference of the ball support portion.

The support rib may have an engagement protrusion formed on an inner side of a distal end portion of the engagement portion so as to abut the second ball portion, and an elastic cover extending in an axial direction of the shaft is formed outside the distal end portion of the engagement portion. Provide a ball joint.

Further, the extension cover has a guide rib formed in the outer circumferential direction of the shaft.

Further, the present invention provides a ball joint having a support rib, further comprising a housing that surrounds the outside of the ball support portion.

In the present invention, when an insertion pressure is applied to the ball stud in a state where the ball stud is not engaged with the ball support portion, the engagement portion of the ball support portion is easily elastically deformed toward the receiving portion by the insertion pressure, To be accommodated in the receiving portion. On the other hand, when the releasing pressure is applied to the ball stud in a state where the ball stud is coupled to the ball support portion, the engagement portion of the ball support portion is supported by the support projection portion of the support rib to restrict the elastic deformation of the engagement portion, There is an effect to be prevented.

Further, an insertion groove is formed concavely in the outer periphery of the shaft abutting the extension cover, and the insertion cover is formed in the extension cover so as to be inserted into the insertion groove, thereby preventing foreign foreign matter from flowing into the extension cover .

1 is a cross-sectional view of a conventional ball joint.
2 is a schematic view of a ball joint having a support rib according to a preferred embodiment of the present invention.
FIG. 3 is a schematic view illustrating a state where a ball stud of a ball joint having a support rib according to a preferred embodiment of the present invention is coupled to a ball support portion.
FIG. 4 is a schematic view illustrating a process in which a first ball portion of a ball stud passes through a retaining portion of a ball retaining portion when an insertion pressure is applied to a ball stud of a ball joint having a support rib according to a preferred embodiment of the present invention.
FIG. 5 is a perspective view schematically showing a state in which a first ball portion of a ball joint having a support rib according to a preferred embodiment of the present invention is inserted into a receiving portion of a ball support portion and the second ball portion is prevented from being released to the outside by the engagement portion. Fig.
FIG. 6 is a cross-sectional view of a ball stud according to a preferred embodiment of the present invention, when a release pressure is applied to a ball stud of a ball joint having a support rib, the second ball portion of the ball stud is supported by the support protrusion of the support rib, FIG. 2 is a view schematically showing the process of FIG.

Hereinafter, a ball joint having a support rib according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic view of a ball joint having a support rib according to a preferred embodiment of the present invention.

Referring to FIG. 2, a ball joint 50 having a support rib according to a preferred embodiment of the present invention includes a ball stud 100, a ball support portion 200, and a support rib 300, As shown in FIG.

The ball stud 100 is connected to various vehicle parts, for example, a head lamp, and includes a shaft 120 and a ball portion 110. The shaft 120 is elongated along the longitudinal direction and may be threaded along the circumference of the shaft 120 so as to be fastened to the vehicle component. The ball portion 110 may be formed in a spherical shape, and is integrally formed at a longitudinal end portion of the shaft 120. At this time, the center portion 114 is provided at the center of the ball portion 110, and the hemispherical portion provided on one side is referred to as a first ball portion 112, and the hemisphere provided on the other side is referred to as a second ball portion (116). The shaft 120 is extended from the second ball portion 116 to the opposite direction of the first ball portion 112.

The support ribs 300 are formed in a manner such that the ball holders 200 are more firmly separated from the ball 110 And may be made of a rigid material such as metal or plastic. Hereinafter, the structure of the ball holding portion 200 and the support rib 300 will be described in more detail with reference to FIG.

 The housing 400 supports the ball holding portion 200 by wrapping the outside of the ball holding portion 200, and a space is formed in the ball holding portion 200 to receive the ball holding portion 200 therein. The housing 400 is made of a rigid material such as plastic, and firmly supports the outside of the ball holding portion 200 made of an elastic material.

FIG. 3 is a schematic view illustrating a state where a ball stud of a ball joint having a support rib according to a preferred embodiment of the present invention is coupled to a ball support portion.

Referring to FIG. 3, the ball holding portion 200 includes a support body 205 so that the ball portion 110 of the ball stud 100 can be seated. The support body 205 is formed of an elastic material and has a receiving part 210 recessed to correspond to the ball 110 and a locking part 220 formed at one side of the receiving part 210 And an extension cover 230, as shown in FIG. The receiving portion 210 is formed in a hemispherical shape so as to insert the first ball portion 112 of the ball portion 110. The engaging portion 220 is formed so as to extend integrally from the open upper side of the receiving portion 210 toward the second ball portion 116 so that the first ball portion 112 inserted into the receiving portion 210 does not come off. The inner side of the protruding direction distal end portion of the engaging portion 220 is formed to be tapered inward than the accommodating portion 210 so that the engaging end portion 222 is engaged with the second ball portion 116, And an extension cover 230 extending outward in the direction of the shaft 120 is provided outside the distal end of the protrusion 220 in the protruding direction. The engaging end portion 222 will be described later with reference to FIG. 4, and the extended cover 230 will be described again in FIG.

The support ribs 300 are provided in the ball holders 200 to prevent the ball holders 200 from coming off more firmly. A plurality of supporting ribs 300 may be disposed along the inner periphery of the ball holding portion 200. The support rib 300 includes a support 310 and a support protrusion 320 and may further include an auxiliary protrusion 330. The supporting portion 310 is formed to be long along the inner direction of the engaging portion 220 in the receiving portion 210. The support protrusion 320 is bent at the upper end of the support 310 located inside the engagement part 220 in the direction of the end of the engagement part 220, The auxiliary protrusion 330 is bent at an upper end of the supporter 310 in a direction opposite to the supporting protrusion 320.

4 is a view schematically showing a process in which a first ball portion of a ball stud passes through a retaining portion of a ball retaining portion when an insertion pressure is applied to a ball stud of a ball joint having a support rib according to a preferred embodiment of the present invention, FIG. 5 is a perspective view schematically showing a state in which a first ball portion of a ball joint having a support rib according to a preferred embodiment of the present invention is inserted into a receiving portion of a ball support portion and the second ball portion is prevented from being released to the outside by the engagement portion. Fig.

4 and 5, in order to attach the ball stud 100 to the ball holding portion 200, the ball portion 110 of the ball stud 100 positioned outside the ball holding portion 310 is inserted into the ball holding portion 200). When the insertion pressure is applied to the first ball portion 112 of the ball stud 100 located at the upper portion of the ball holding portion 200 in the direction of the receiving portion 210, And is moved in the direction of the engaging portion 220 by elastically deforming the upper side of the engaging portion 220 outwardly. The first ball portion 112 elastically deforms the engaging end portion 222 of the engaging portion 220 in the direction of the lower portion, that is, the receiving portion 210, and then passes through the engaging end portion 222 to the receiving portion 210 ). That is, when the first ball portion 112 elastically deforms the engaging end portion 222 of the engaging portion 220 in the downward direction, since there is no other configuration under the engaging end portion 222, The end portion 222 can be elastically deformed in the downward direction. When the first ball portion 112 is inserted into the receiving portion 210, the engaging end portion 222 returns to the original position. At this time, the second ball portion 116 is engaged with the engaging end portion 222, (116) is not released to the outside.

The extended cover 230 blocks the external dust from entering the ball 110 inserted into the ball holding part 200. The upper part of the ball holding part 200 is covered with the cover 220, In the direction of the shaft 120. At this time, an insertion guide portion 232 is protruded on the upper side of the extension cover 230 in the outer circumferential direction of the shaft 120 so that external foreign substances do not flow into the extension cover 230, It has the effect of shutting it down tightly.

FIG. 6 is a cross-sectional view of a ball stud according to a preferred embodiment of the present invention, when a release pressure is applied to a ball stud of a ball joint having a support rib, the second ball portion of the ball stud is supported by the support protrusion of the support rib, FIG. 2 is a view schematically showing the process of FIG.

6, the ball stud 100 is coupled to the ball holding portion 200 so that the first ball portion 112 of the ball stud 100 is inserted into the receiving portion 210 of the ball holding portion 200, The second ball portion 116 of the stud 100 is engaged with the engaging portion 220 of the ball holding portion 200 and the second ball portion 116 is inserted into the receiving portion 210 May be exerted in a direction opposite to the direction of the arrows. In this case, the second ball portion 116 presses the engagement end portion 222 of the engagement portion 220 in the direction of the support protrusion 320 in order to be released to the outside of the engagement portion 220. At this time, since the engaging end 222 of the engaging part 220 is supported by the supporting protrusion 320, the engaging end 222 of the engaging part 220 is elastically deformed, So that the second ball portion 116 can be prevented from being separated from the second ball portion 116 by being engaged with the engaging end portion 222 of the engaging portion 220. [

When the support protrusion 320 is formed on one side of the support 310, the support protrusion 330 is formed on the other side of the support 310 so that the support protrusion 320 is supported by the auxiliary protrusion 330, And a more rigid structure is maintained. The rigidity of the support protrusion 320 is increased to the rigidity of the support protrusion 320 itself so that the support protrusion 320 and the auxiliary protrusion 330 So that the engaging end 222 is firmly supported.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. It should be understood that the technical idea belonging to the scope of the claims also belongs to the present invention.

50: Ball joint
100: ball stud 110: ball portion
112: first ball portion 114:
116: second ball portion 120: shaft
200: ball support portion 205: support body
210: accommodating portion 220:
222: Engagement end 230: Extension cover
232: insertion guide part 300: support rib
310: Support part 320: Supporting part
330: auxiliary protrusion 400: housing

Claims (7)

A ball portion formed in a ball shape and having a first ball portion provided on one side thereof with a center portion as a reference and a second ball portion provided on the other side thereof; and a shaft extending in a direction opposite to the first ball portion in the second ball portion A ball stud included;
A ball holding portion having a receiving portion formed concavely to receive the first ball portion and a holding portion extending from the opened side of the receiving portion toward the second ball portion so that the first ball portion is not released;
A support rib having one side located inside the accommodating portion and the other side being formed long inward of the engaging portion; And
And a housing that surrounds the outside of the ball holding portion,
When the insertion pressure is applied to the first ball portion located outside the receiving portion, the first ball portion presses the distal end portion of the receiving portion toward the receiving portion , The distal end portion of the engaging portion is elastically deformed in the direction of the accommodating portion, the first ball portion is inserted into the accommodating portion,
Wherein the support rib includes a support portion formed to be long inside the retaining portion in the accommodating portion and a support protrusion bent at an end portion of the support portion inside the retaining portion in the direction of the end of the retaining portion,
When the first ball portion is inserted into the accommodating portion and the second ball portion is engaged with the engaging portion and then the releasing pressure is applied to the second ball portion in the direction opposite to the accommodating portion, And the distal end of the engaging portion is elastically deformed while the distal end of the engaging portion is supported by the supporting protrusion so that the distal end of the engaging portion is prevented from separating from the second ball portion Characterized in that the ball has a support rib.
delete The method according to claim 1,
Wherein the support rib is bent at an end of the support portion in a direction opposite to a direction in which the support protrusion is bent.
The method according to claim 1,
And a plurality of support ribs are disposed along the inner circumference of the ball support portion.
The method according to claim 1,
Wherein an engaging end portion is protruded to abut the second ball portion on an inner side of a distal end portion of the engaging portion and an elongated cover made of an elastic material is formed on an outer side of a distal end portion of the engaging portion in an axial direction of the shaft, .
6. The method of claim 5,
Wherein the extension cover is formed with an insertion guide portion in an outer circumferential direction of the shaft.
The method according to claim 1,
And a housing surrounding the outside of the ball support portion.
KR1020150151929A 2015-10-30 2015-10-30 Ball Joint with Supporting Rib KR101779382B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150151929A KR101779382B1 (en) 2015-10-30 2015-10-30 Ball Joint with Supporting Rib

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150151929A KR101779382B1 (en) 2015-10-30 2015-10-30 Ball Joint with Supporting Rib

Publications (2)

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KR20170050424A KR20170050424A (en) 2017-05-11
KR101779382B1 true KR101779382B1 (en) 2017-09-19

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003522910A (en) 2000-02-09 2003-07-29 ツェットエフ レムフェルダー メタルヴァーレン アクチエンゲゼルシャフト Ball joint
JP2012163126A (en) * 2011-02-04 2012-08-30 Jtekt Corp Ball joint
JP5263598B2 (en) 2008-11-20 2013-08-14 株式会社ジェイテクト Ball joint

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003522910A (en) 2000-02-09 2003-07-29 ツェットエフ レムフェルダー メタルヴァーレン アクチエンゲゼルシャフト Ball joint
JP5263598B2 (en) 2008-11-20 2013-08-14 株式会社ジェイテクト Ball joint
JP2012163126A (en) * 2011-02-04 2012-08-30 Jtekt Corp Ball joint

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