• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a damping device for a leaf spring, wherein the leaf spring (1) is provided with a spring leaf (3) having different lengths on the main leaf (2) to mediate a plurality of clip bands along the length direction. The main portion and the central portion of the spring leaf is fastened to the axle (5) via the U bolt (4), the bumper stopper to limit the stroke of the leaf spring (1) to the U bolt (6) is fastened and the shock absorber (7) is fastened via a joint (9) to the rebound bumper bracket (8) attached to the axle (5), while at one end of the rebound bumper bracket (8) The damper 10 is fastened through the bolt and the nut, and the spring 11 is fitted to the outer circumference of the fastening bolt to elastically support the rebound damper 10. Accordingly, when the leaf spring is out of the stable behavior region during the movement of the leaf spring, the rebound damper is appropriately cushioned to improve driving stability of the vehicle and to stabilize the behavior of the vehicle body.
    公开号:KR19990015150A
    申请号:KR1019970037062
    申请日:1997-08-02
    公开日:1999-03-05
    发明作者:배규태
    申请人:정몽규；현대자동차 주식회사；
    IPC主号:
    专利说明:

    Damping device of the leaf spring
    The present invention relates to a suspension device using a leaf spring, and in particular, a rebound damper is mounted on a rebound bracket attached to a rear axle, and thus a damping role can be applied to the leaf spring to improve driving stability of the vehicle. A damping device for the spring.
    In general, the suspension of the vehicle is connected to the axle and the body so that the vibration or shock received from the road surface is not directly transmitted to the body while driving, thereby preventing damage to the body and cargo and improving ride comfort. It includes a chassis spring to reduce the pressure, a shock absorber to control the free vibration of the chassis spring to improve the ride comfort, and a stabilizer to prevent rolling of the vehicle.
    The chassis springs may be divided into steel springs, gas springs, hydraulic springs, rubber springs, and pneumatic springs according to their types, and gas (air or nitrogen) springs are frequently used in automobiles, such as trucks and buses, which are relatively easy to secure installation space. It is used.
    Here, as the steel spring, a leaf spring made by bending a spring plate formed in a strip shape of a spring steel into a bow shape and overlapping a number of sheets is used, and this leaf spring has a fixed axle in position by the rigidity of the spring itself. Since it can support, the structure is simple, it has the control effect which suppresses vibration by friction between plates, and it has the advantage of big durability.
    The above-mentioned conventional leaf spring has a spring eye integrally formed at both ends of the main life, and the spring eye is fitted to each spring eye, and one side of the spring eye is fastened to the chassis by a spring hanger while the other spring When the child is fastened to the chassis by means of a sackle and receives vibrations or shocks from the road surface, the child absorbs vibrations or shocks by stretching, compression, and rotational movements while properly supported by the spring hanger and the sackle. The reduction is made.
    In addition, as shown in FIG. 1, the conventional leaf spring 101 is fastened with a plurality of clip bands along the length direction by applying different spring lives 103 to the main leaf 102. The central portion of the main life and the spring life are fastened to the axle 105 via the U bolt 104.
    The bumper stopper 106 is fastened to the U bolt to limit the stroke of the leaf spring when the vehicle is bumped or rebounded due to an irregular road surface while the vehicle equipped with the leaf spring is driven, and absorbs vibration. The shock absorber 107, which is reduced in size, has a structure fastened via the bracket 108 attached to the axle.
    Accordingly, when vibrations or shocks are transmitted to the leaf springs through the wheels due to irregular road surfaces while driving the vehicle, each spring leaf absorbs and reduces vibrations and shocks appropriately by a complex action such as stretching and compression. Further, the bumper stopper serves as a second spring while limiting the stroke of the leaf spring so that the leaf spring does not directly hit the chassis during the movement of the leaf spring.
    However, when the cargo is loaded on a commercial vehicle equipped with the suspension spring as described above, or when the road irregularities are severe, the stroke of the life of the life spring also increases, in which case the life of the life spring is severe. There was a drawback that the driving stability of the vehicle may become unstable as it moves out of the stable area.
    Accordingly, the present invention has been made in view of the above circumstances, and provides a cushioning function to the leaf spring while limiting the downward stroke of the leaf spring when excessive load is applied to the suspension device using the leaf spring or the rebound movement is severe. The purpose of the present invention is to provide a damping device for a leaf spring that can improve driving stability of a vehicle.
    1 is a mounting state diagram of a suspension device using a leaf spring according to the prior art,
    2 is a mounting state diagram of a suspension device using a leaf spring equipped with a damping device according to the present invention.
    Explanation of symbols for the main parts of the drawings
    1-Life Spring 2-Main Life
    3-spring life 4-U bolt
    5-axle 6-stopper
    7- shock absorber 8-rebound bumper bracket
    9-Joint 10-Rebound Damper
    11-spring
    The present invention for achieving the object described above, the main rope is provided with a plurality of spring reliefs having different lengths fastened through the clip band along the longitudinal direction, the fastening to the axle via the U-bolt as a medium A suspension having a spring and a shock absorber mounted via a rebound bumper bracket mounted on the axle, the bumper stopper fastened to the fastening bolt to limit the stroke during the upward movement of the leaf spring. One end of the rebound bumper bracket is characterized in that the rebound damper is provided to be elastically supported through the spring for the cushioning function while limiting the stroke of the leaf spring.
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    Figure 2 is a mounting state of the suspension device using a leaf spring equipped with a damping device according to the present invention, that is, the leaf spring (1) is a spring leaf (3) of different lengths to the main leaf (2) Is padded and fastened through a plurality of clip bands along the longitudinal direction, and the central portions of the main and spring lives are fastened to the axles 5 through the U bolts 4.
    A bumper stopper 6 is fastened to the U-bolt to limit the stroke during the upward movement of the leaf spring 1, and a shock absorber 7 for absorbing and reducing vibration is attached to the axle 5. The rebound bumper bracket 8 is connected to each other via a joint 9.
    In addition, the rebound damper 10 is fastened to the one end of the rebound bumper bracket 8 through the bolt and the nut, and a spring 11 is fitted to the outer circumference of the fastening bolt to support the rebound damper 10 elastically. The damper is supported via a spring 11 so as to maintain a constant distance with respect to the upper surface of the bumper bracket 8, and the lower end diameter A of the damper 10 is the bumper bracket 8. It is formed larger than the diameter (B) of the hole formed in the upper surface of the, so that the damper 10 is not inserted into the bumper bracket (8) even when the shock.
    Accordingly, when vibrations or shocks are transmitted to the leaf springs through the wheels due to irregular road surfaces while driving the vehicle, each spring leaf absorbs and reduces vibrations and shocks appropriately by a complex action such as stretching and compression. In addition, the bumper stopper serves as a second spring while limiting the stroke of the leaf spring so that the leaf spring does not directly hit the chassis during the movement of the leaf spring.
    The rebound damper 11 abuts against the spring leaf when the leaf spring moves out of the stable operating area when the impact transmitted through the wheel is large or the load applied to the suspension device is large. As a secondary damping role, the leaf spring is to act as a third damping to further improve the driving stability of the vehicle.
    As described above, according to the damping device of a leaf spring according to the present invention, when the leaf spring is out of a stable operating region during the movement of the leaf spring, the rebound damper properly cushions a function to further improve driving stability of the vehicle. This has the effect of stabilizing the behavior of the body.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] A leaf spring fastened to the axle via a U-bolt with a plurality of spring leaves of different lengths fastened through the clip band along the longitudinal direction of the main life, and during the upward movement of this leaf spring. To limit the stroke, bumper stoppers fastened to the fastening bolt, shock absorbers mounted through the rebound bumper brackets mounted on the axle, and the shock spring function while limiting the stroke of the leaf spring to one end of the rebound bumper bracket. A damping device for a leaf spring with a rebound damper installed to be elastically supported by a spring.
    [2" claim-type="Currently amended] According to claim 1, wherein the damper is supported by a spring to maintain a constant distance to the upper surface of the bumper bracket, the lower end diameter of the damper so that the damper is not inserted into the bumper bracket even if the damper is impacted, the upper surface of the bumper bracket The damping device of the leaf spring, characterized in that formed larger than the diameter of the hole formed in.
    类似技术:
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    同族专利:
    公开号 | 公开日
    KR100243614B1|2000-03-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-08-02|Application filed by 정몽규, 현대자동차 주식회사
    1997-08-02|Priority to KR1019970037062A
    1999-03-05|Publication of KR19990015150A
    2000-03-02|Application granted
    2000-03-02|Publication of KR100243614B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970037062A|KR100243614B1|1997-08-02|1997-08-02|Damping device for leaf spring|
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