WO2006126772A1 - Apparatus for preventing lateral movement of balance arm - Google Patents

Apparatus for preventing lateral movement of balance arm Download PDF

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Publication number
WO2006126772A1
WO2006126772A1 PCT/KR2006/000500 KR2006000500W WO2006126772A1 WO 2006126772 A1 WO2006126772 A1 WO 2006126772A1 KR 2006000500 W KR2006000500 W KR 2006000500W WO 2006126772 A1 WO2006126772 A1 WO 2006126772A1
Authority
WO
WIPO (PCT)
Prior art keywords
balance arm
support ring
shape
notches
arm
Prior art date
Application number
PCT/KR2006/000500
Other languages
French (fr)
Inventor
Chan-Gi Jung
Original Assignee
Dae Won Kang Up Co., Ltd.
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 Dae Won Kang Up Co., Ltd. filed Critical Dae Won Kang Up Co., Ltd.
Publication of WO2006126772A1 publication Critical patent/WO2006126772A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • B60G21/0551—Mounting means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • B60G2206/427—Stabiliser bars or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8101—Shaping by casting
    • B60G2206/81012—Shaping by casting by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/44—Vibration noise suppression

Definitions

  • the present invention relates, in general, to apparatuses for preventing lateral movement of balance arms and, more particularly, to a lateral movement prevention apparatus for balance arms which is integrally provided on a balance arm to prevent the balance arm from undesirably moving in its axial direction.
  • a balance arm which prevents a vehicle body from rolling, is coupled to the vehicle body using coupling brackets and is coupled at opposite ends thereof to respective suspension units of two wheels which are operated by ball joints.
  • the opposite ends of the balance arm are coupled to the left and right suspensions (typically, they are coupled to lower arms of the suspensions).
  • Two rubber bushings are provided on respective opposite ends of a medial part of the balance arm at positions adjacent to bent parts of the balance arm. Subsequently, a U-shaped stay is fitted over each rubber bushing. Thereafter, the U-shaped stays are coupled to the vehicle body using locking bolts so that the balance arm is supported on the vehicle body.
  • the balance arm Only when there is a difference in movement between the left and right wheels is the balance arm operated. For example, when the vehicle turns, an outside wheel bumps and an inside wheel rebounds. At this time, the balance arm serves to balance the left and right wheels, thus mitigating a leaning motion of the vehicle body.
  • the balance arm may be undesirably moved with respect to the rubber bushings due to the lateral force.
  • the balance arm undesirably moves with respect to the rubber bushings, because the set position of the balance arm on the vehicle body is changed, a problem of an abnormal leaning motion of the vehicle body is induced, thereby generating noise due to interference between elements of the vehicle, thus resulting in a rough ride.
  • an object of the present invention is to provide an apparatus for preventing lateral movement of a balance arm, which is mounted on the balance arm at a position adjacent to each rubber bushing through an automatized process, without damaging to a coated outer surface of the balance arm, thus ensuring the durability of a stabilizer, making it possible for an assembly process to be automatized, and preventing the balance arm from undesirably slipping with respect to the rubber bushings, thereby ensuring a smooth comfortable ride.
  • the present invention provides an apparatus for preventing lateral movement of a balance arm, comprising: a support ring formed on an outer surface of the balance arm by injection molding, with a plurality of notches formed around an end of the support ring, so that the balance arm is prevented from moving in a lateral direction.
  • support rings that prevent rubber bushings from undesirably moving are integrally formed on a balance arm by injection molding. Therefore, the present invention can be produced through an automatic assembly process, thus enhancing the workability and productivity. Furthermore, each support ring is reliably fixed on the balance arm both by friction between the inner surface of the support ring and the outer surface of the balance arm and by engagement between notches of the support ring and stepped portions of a coating layer formed on the outer surface of the balance arm. By this, the present invention prevents the rubber bushings from being undesirably moved, that is, prevents the balance arm from slipping with respect to the rubber bushings, thereby ensuring a smooth comfortable ride.
  • FIG. 1 is a perspective view of a support ring of an apparatus for preventing lateral movement of a balance arm according to an embodiment of the present invention
  • FIG. 2 is a view showing a process of forming the support ring of FIG. 1 on the balance arm;
  • FIG. 3 is a perspective view showing the lateral movement prevention apparatus of the present invention provided on the balance arm;
  • FIG. 4 is a sectional view showing the support ring provided on the balance arm according to the present invention.
  • FIG. 5 is a perspective view showing the construction of the balance arm on which the lateral movement prevention apparatuses of the present invention are provided.
  • FIG. 1 is a perspective view of a support ring 20 of an apparatus for preventing lateral movement of a balance arm according to the embodiment of the present invention.
  • FlG. 2 is a view showing a process of forming the support ring 20 on the balance arm 10.
  • FlG. 3 is a perspective view showing the lateral movement prevention apparatus provided on the balance arm 10.
  • the support rings 20 are integrally formed on the circumferential outer surface of the balance arm 10, which is treated by shot peening, by injection molding, and serve to prevent the balance arm 10 from laterally moving with reference to rubber bushings 30.
  • Each support ring 20 may have a polygonal shape, such as a rectangular shape, a hexagonal shape or an octagonal shape. Alternatively, each support ring 20 may have a trapezoidal, circular or elliptical shape. Furthermore, a plurality of notches 21 is formed in an end of each support ring 20.
  • Each notch 21 has a saw-toothed, trapezoidal, circular, semicircular, elliptical or polygonal shape and is formed to a predetermined depth from the end of the support ring 20.
  • the notches 21 are formed around the end of the support ring 20 and spaced apart from each other at predetermined intervals.
  • the support rings 20 are integrally formed on the balance arm 10 by injection molding at positions at which the balance arm 10 is coupled to a vehicle body. Thereafter, the outer surface of the balance arm 10, to which the support rings 20 are integrally mounted, is treated by a coating process.
  • the rubber bushings 30 are provided on the balance arm 10 at predetermined positions such that each rubber bushing 30 is in close contact with each support ring 20.
  • a U-shaped stay 40 is fitted over each rubber bushing 30. Thereafter, the U-shaped stays 40 are coupled to the vehicle body using locking bolts so that the balance arm 10 is supported on the vehicle body.
  • each of the support rings 20 of the present invention having the above- mentioned structure is fixed to the balance arm 10 by friction between the outer surface of the balance arm 10 and the inner surface of the support ring 20, contact of the notches 21 of the support ring 20 with the uneven outer surface of the balance arm 10, and stepped portions of a coating layer which are defined by the notches of the support ring 20.
  • the support ring 20, having the notches 20, is formed on the balance arm 10 by injection molding and, thereafter, the balance arm 10 is coated with paint. Then, as shown in FlG. 4, the paint is applied to even portions of the balance arm 10 which are exposed through the notches 21 of the support ring 20, so that a coating layer 11 extends even into the notches 21.
  • the coating layer 11 is formed on the portions defined in the notches 21, the coating layer 11 has the stepped shape at a junction between the support ring 20 and the balance arm 10. Therefore, by the stepped portions of the coating layer 11, the support ring 20 is prevented from being rotated around the balance arm 10.
  • the present invention has a structure in which support rings that prevent rubber bushings from undesirably moving are integrally formed on a balance arm by injection molding. Therefore, the present invention can be produced through an automatic assembly process, thus enhancing the workability and productivity.
  • each support ring is reliably fixed on the balance arm both by friction between the inner surface of the support ring and the outer surface of the balance arm and by engagement between notches of the support ring and stepped portions of a coating layer formed on the outer surface of the balance arm.
  • the present invention prevents the rubber bushings from being undesirably moved, that is, prevents the balance arm from slipping with respect to the rubber bushings, thereby ensuring a smooth comfortable ride.

Abstract

Disclosed herein is an apparatus for preventing lateral movement of a balance arm. The apparatus of the present invention includes a support ring (20), which is formed on an uneven outer surface of the balance arm (10) by injection molding. One end of the support ring (20) contacts a rubber bushing (30) of a coupling bracket. A plurality of notches (21) is formed around the other end of the support ring (20). A coating layer (11) is formed on the balance arm (10) such that stepped junctions are formed in the notches (21) of the support ring. Therefore, thanks to friction between the inner surface of the support ring and the uneven outer surface of the balance arm (10) and the stepped junctions of the coating layer (11), the balance arm (10) is prevented from moving in a lateral direction and, as well, the support arm (20) is prevented from rotating around the balance arm.

Description

Description
APPARATUS FOR PREVENTING LATERAL MOVEMENT OF
BALANCE ARM
Technical Field
[1] The present invention relates, in general, to apparatuses for preventing lateral movement of balance arms and, more particularly, to a lateral movement prevention apparatus for balance arms which is integrally provided on a balance arm to prevent the balance arm from undesirably moving in its axial direction.
[2]
Background Art
[3] Generally, a balance arm, which prevents a vehicle body from rolling, is coupled to the vehicle body using coupling brackets and is coupled at opposite ends thereof to respective suspension units of two wheels which are operated by ball joints. As shown in FlG. 5, the opposite ends of the balance arm are coupled to the left and right suspensions (typically, they are coupled to lower arms of the suspensions). Two rubber bushings are provided on respective opposite ends of a medial part of the balance arm at positions adjacent to bent parts of the balance arm. Subsequently, a U-shaped stay is fitted over each rubber bushing. Thereafter, the U-shaped stays are coupled to the vehicle body using locking bolts so that the balance arm is supported on the vehicle body. Only when there is a difference in movement between the left and right wheels is the balance arm operated. For example, when the vehicle turns, an outside wheel bumps and an inside wheel rebounds. At this time, the balance arm serves to balance the left and right wheels, thus mitigating a leaning motion of the vehicle body.
[4] However, while the vehicle is in motion, in the case that lateral force with respect to the vehicle body is applied to the balance arm, that is, in the case that force is applied in a direction parallel to the medial part of the balance arm, for example, during a turning motion of the vehicle, the balance arm may be undesirably moved with respect to the rubber bushings due to the lateral force. As such, if the balance arm undesirably moves with respect to the rubber bushings, because the set position of the balance arm on the vehicle body is changed, a problem of an abnormal leaning motion of the vehicle body is induced, thereby generating noise due to interference between elements of the vehicle, thus resulting in a rough ride.
[5] To prevent the balance arm from being removed from its set position, a technique in which a metal washer is fitted over the balance arm at a position adjacent to each rubber bushing and is treated by caulking such that the balance arm is prevented from moving with respect to the rubber bushings has been proposed. However, in this technique, high cost is required to manufacture the metal washer and to attach it to the balance arm through a caulking process. Furthermore, because supply and positioning of the metal washer is not easy, there is a problem in that it is very difficult to automatize the manufacturing process.
[6] Furthermore, a technique in which rubber bushings, each having a flange, are provided on opposite ends of a medial part of a balance arm in place of metal washers and a clip band is provided on each flange such that the rubber bushings are fixed on the balance arm have been proposed. However, a process of mounting the rubber bushings having the flanges on the balance arm is not easy, and the clip bands are provided on the rubber bushings by a manual method; therefore, the assemblability is reduced. Furthermore, because coupling brackets of the balance arm are substantially made of rubber, when lateral force is applied to the balance arm, serious wear is caused by massive friction between rubber materials, so that there is a problem in that the elements may not execute their roles.
[7] As well, the following technique has been proposed. That is, a plurality of ring- shaped supports is press-fitted over the circumferential outer surface of a balance arm. Anti-slip protrusions or particles are applied to an inner surface of each ring-shaped support. The opposite ends of the ring-shaped supports are coupled to each other. Thus, the balance arm is prevented from undesirably moving from rubber bushings thanks to friction between the coated outer surface of the balance arm and the anti-slip protrusions or particles. However, in this technique, because a plurality of ring-shaped supports must be provided on the balance arm, the assembly process is complicated. As well, because the opposite ends of the ring-shaped supports must be coupled to each other, a separate tool is required. In addition, the coated outer surface of the balance arm may be damaged by the ring-shaped supports, so that there is a problem of reduced durability of the balance arm.
[8]
Disclosure of Invention Technical Problem
[9] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an apparatus for preventing lateral movement of a balance arm, which is mounted on the balance arm at a position adjacent to each rubber bushing through an automatized process, without damaging to a coated outer surface of the balance arm, thus ensuring the durability of a stabilizer, making it possible for an assembly process to be automatized, and preventing the balance arm from undesirably slipping with respect to the rubber bushings, thereby ensuring a smooth comfortable ride. [10]
Technical Solution
[11] In order to accomplish the above object, the present invention provides an apparatus for preventing lateral movement of a balance arm, comprising: a support ring formed on an outer surface of the balance arm by injection molding, with a plurality of notches formed around an end of the support ring, so that the balance arm is prevented from moving in a lateral direction.
[12]
Advantageous Effects
[13] In the present invention, support rings that prevent rubber bushings from undesirably moving are integrally formed on a balance arm by injection molding. Therefore, the present invention can be produced through an automatic assembly process, thus enhancing the workability and productivity. Furthermore, each support ring is reliably fixed on the balance arm both by friction between the inner surface of the support ring and the outer surface of the balance arm and by engagement between notches of the support ring and stepped portions of a coating layer formed on the outer surface of the balance arm. By this, the present invention prevents the rubber bushings from being undesirably moved, that is, prevents the balance arm from slipping with respect to the rubber bushings, thereby ensuring a smooth comfortable ride.
[14]
Brief Description of the Drawings
[15] FIG. 1 is a perspective view of a support ring of an apparatus for preventing lateral movement of a balance arm according to an embodiment of the present invention;
[16] FIG. 2 is a view showing a process of forming the support ring of FIG. 1 on the balance arm;
[17] FIG. 3 is a perspective view showing the lateral movement prevention apparatus of the present invention provided on the balance arm;
[18] FIG. 4 is a sectional view showing the support ring provided on the balance arm according to the present invention; and
[19] FIG. 5 is a perspective view showing the construction of the balance arm on which the lateral movement prevention apparatuses of the present invention are provided.
[20]
Best Mode for Carrying Out the Invention
[21] Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings.
[22] FIG. 1 is a perspective view of a support ring 20 of an apparatus for preventing lateral movement of a balance arm according to the embodiment of the present invention. FlG. 2 is a view showing a process of forming the support ring 20 on the balance arm 10. FlG. 3 is a perspective view showing the lateral movement prevention apparatus provided on the balance arm 10. Referring to the drawings, in the present invention, each of opposite ends of a medial part of the balance arm 10, which are adjacent to bent parts of the balance arm 10, is inserted into an injection mold and, thereafter, the support ring 20 is integrally formed on each of the opposite ends of the medial part of the balance arm 10 through an injection molding process using an injection nozzle.
[23] The support rings 20 are integrally formed on the circumferential outer surface of the balance arm 10, which is treated by shot peening, by injection molding, and serve to prevent the balance arm 10 from laterally moving with reference to rubber bushings 30. Each support ring 20 may have a polygonal shape, such as a rectangular shape, a hexagonal shape or an octagonal shape. Alternatively, each support ring 20 may have a trapezoidal, circular or elliptical shape. Furthermore, a plurality of notches 21 is formed in an end of each support ring 20.
[24] Each of the notches 21 of the support ring 20, which is formed by injection molding, contacts the uneven outer surface (IHIβ) of the balance arm 10 treated by shot peening. Each notch 21 has a saw-toothed, trapezoidal, circular, semicircular, elliptical or polygonal shape and is formed to a predetermined depth from the end of the support ring 20. The notches 21 are formed around the end of the support ring 20 and spaced apart from each other at predetermined intervals.
[25] In the present invention having the above-mentioned structure, the support rings 20 are integrally formed on the balance arm 10 by injection molding at positions at which the balance arm 10 is coupled to a vehicle body. Thereafter, the outer surface of the balance arm 10, to which the support rings 20 are integrally mounted, is treated by a coating process. As such, after the support rings 20 are provided on the balance arm 10, the rubber bushings 30 are provided on the balance arm 10 at predetermined positions such that each rubber bushing 30 is in close contact with each support ring 20. Subsequently, a U-shaped stay 40 is fitted over each rubber bushing 30. Thereafter, the U-shaped stays 40 are coupled to the vehicle body using locking bolts so that the balance arm 10 is supported on the vehicle body.
[26] Therefore, each of the support rings 20 of the present invention having the above- mentioned structure is fixed to the balance arm 10 by friction between the outer surface of the balance arm 10 and the inner surface of the support ring 20, contact of the notches 21 of the support ring 20 with the uneven outer surface of the balance arm 10, and stepped portions of a coating layer which are defined by the notches of the support ring 20.
[27] In detail, the support ring 20, having the notches 20, is formed on the balance arm 10 by injection molding and, thereafter, the balance arm 10 is coated with paint. Then, as shown in FlG. 4, the paint is applied to even portions of the balance arm 10 which are exposed through the notches 21 of the support ring 20, so that a coating layer 11 extends even into the notches 21.
[28] As such, because the coating layer 11 is formed on the portions defined in the notches 21, the coating layer 11 has the stepped shape at a junction between the support ring 20 and the balance arm 10. Therefore, by the stepped portions of the coating layer 11, the support ring 20 is prevented from being rotated around the balance arm 10.
[29] Although the preferred embodiment of the present invention has been disclosed for illustrative purposes, the present invention is not limited to the preferred embodiment. Furthermore, those skilled in the art will appreciate that various modifications are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims, and these modifications fall within the bounds of the present invention.
[30]
Industrial Applicability
[31] As described above, the present invention has a structure in which support rings that prevent rubber bushings from undesirably moving are integrally formed on a balance arm by injection molding. Therefore, the present invention can be produced through an automatic assembly process, thus enhancing the workability and productivity.
[32] Furthermore, each support ring is reliably fixed on the balance arm both by friction between the inner surface of the support ring and the outer surface of the balance arm and by engagement between notches of the support ring and stepped portions of a coating layer formed on the outer surface of the balance arm. By this, the present invention prevents the rubber bushings from being undesirably moved, that is, prevents the balance arm from slipping with respect to the rubber bushings, thereby ensuring a smooth comfortable ride.

Claims

Claims
[1] An apparatus for preventing lateral movement of a balance arm, comprising: a support ring formed on an outer surface of the balance arm by injection molding, with a plurality of notches formed around an end of the support ring, so that the balance arm is prevented from moving in a lateral direction.
[2] The apparatus according to claim 1, wherein each of the notches of the support ring has one shape selected from a saw-toothed shape, a trapezoidal shape, a circular shape, a semicircular shape, an elliptical shape and a polygonal shape, and a coating layer is formed on each of portions of the balance arm which are exposed through the notches of the support ring.
[3] The apparatus according to claim 1 or 2, wherein the support ring has one shape selected from a polygonal shape, a trapezoidal shape, a cylindrical shape and an elliptical shape.
PCT/KR2006/000500 2005-05-27 2006-02-13 Apparatus for preventing lateral movement of balance arm WO2006126772A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050044977A KR100658294B1 (en) 2005-05-27 2005-05-27 Apparatus for prventing lateral movement of balance arm
KR10-2005-0044977 2005-05-27

Publications (1)

Publication Number Publication Date
WO2006126772A1 true WO2006126772A1 (en) 2006-11-30

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WO (1) WO2006126772A1 (en)

Cited By (4)

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WO2009104815A1 (en) 2008-02-21 2009-08-27 Nhk Spring Co., Ltd. Vehicle stabilizer
WO2010013622A1 (en) * 2008-07-29 2010-02-04 日本発條株式会社 Stabilizer device and method of manufacturing same
JP2010023642A (en) * 2008-07-18 2010-02-04 Nhk Spring Co Ltd Stabilizer device
WO2020049261A1 (en) * 2018-09-06 2020-03-12 Sogefi Suspensions Ring for a cylindrical body

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JP2001260624A (en) * 2000-03-16 2001-09-26 Toyoda Gosei Co Ltd Stabilizer bush
JP2002002249A (en) * 2000-06-21 2002-01-08 Mitsubishi Motors Corp Stabilizer of vehicle
JP2003237338A (en) * 2002-02-21 2003-08-27 Nhk Spring Co Ltd Vehicular stabilizer and its assembling method
US6889988B2 (en) * 2002-04-17 2005-05-10 Visteon Global Technologies, Inc. Variable rate gripped bushing system

Cited By (11)

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Publication number Priority date Publication date Assignee Title
WO2009104815A1 (en) 2008-02-21 2009-08-27 Nhk Spring Co., Ltd. Vehicle stabilizer
EP2244896A1 (en) * 2008-02-21 2010-11-03 NHK Spring Co., Ltd. Vehicle stabilizer
EP2244896A4 (en) * 2008-02-21 2012-01-04 Nhk Spring Co Ltd Vehicle stabilizer
US8382129B2 (en) 2008-02-21 2013-02-26 Nhk Spring Co., Ltd. Vehicle stabilizer
JP2010023642A (en) * 2008-07-18 2010-02-04 Nhk Spring Co Ltd Stabilizer device
WO2010013622A1 (en) * 2008-07-29 2010-02-04 日本発條株式会社 Stabilizer device and method of manufacturing same
JP2010030421A (en) * 2008-07-29 2010-02-12 Nhk Spring Co Ltd Stabilizer device and its manufacturing method
US8419033B2 (en) 2008-07-29 2013-04-16 Nhk Spring Co., Ltd. Stabilizer device and method of manufacturing same
CN102112330B (en) * 2008-07-29 2013-09-25 日本发条株式会社 Stabilizer device and method of manufacturing same
WO2020049261A1 (en) * 2018-09-06 2020-03-12 Sogefi Suspensions Ring for a cylindrical body
FR3085730A1 (en) * 2018-09-06 2020-03-13 Sogefi Suspensions RING FOR CYLINDRICAL BODY

Also Published As

Publication number Publication date
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KR20060122469A (en) 2006-11-30

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