• 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:
    PURPOSE: A steering shaft is provided to prevent clearance of the steering shaft, to exactly transmit rotary power, and to improve manipulation feeling by improving the assembly structure of the steering shaft. CONSTITUTION: A steering shaft(30) has plural injection holes(40) bored on the curved surface formed at the space of an upper shaft plane surface formed in the hollow(34) of an upper shaft(32). The injection holes are formed symmetrically to the both curved surfaces of the upper shaft. Coincidence of the center of the upper shaft and an intermediate shaft(42) is kept and floating, in the gap between the upper shaft and the intermediate shaft when filling the gap with resin material, is prevented. Therefore, airtight assembling is performed.
    公开号:KR20020074654A
    申请号:KR1020010014564
    申请日:2001-03-21
    公开日:2002-10-04
    发明作者:이진웅
    申请人:한국델파이주식회사；
    IPC主号:
    专利说明:

    Steering Shaft for Vehicles {STEERING SHAFT FOR VEHICLE}
    [15] The present invention relates to a steering shaft for a vehicle, and more particularly, a steering wheel is installed and improves an assembly structure of a steering shaft that transmits a steering force to a steering gear through an intermediate shaft, thereby preventing play between the steering shafts and transmitting accurate rotational force, and a steering wheel. It relates to a vehicle steering shaft for improving the feeling of operation.
    [16] 1 is a view showing a steering shaft according to the prior art, Figure 2 is a view showing A-A of FIG.
    [17] The steering shaft 2 is composed of an upper shaft 4 on which a steering wheel, not shown, is installed, and an intermediate shaft 6 connected to the steering gear, not shown.
    [18] The upper shaft 4 forms a hollow portion 8 to be assembled with the intermediate shaft 6, and the upper shaft flat portion 10 is formed on both sides of the hollow portion 8, and the upper shaft flat surface is formed. The part 10 is formed by drilling a plurality of injection holes 12 located on the horizontal line.
    [19] The intermediate shaft 6 also forms an intermediate shaft flat portion 14 on both sides to be assembled to the hollow portion 8 of the upper shaft 4.
    [20] Although the upper shaft 4 and the intermediate shaft 6 are precisely assembled, the upper shaft 4 and the intermediate shaft 6 are assembled with a gap 16 having a constant width between the upper shaft 4 and the intermediate shaft 6.
    [21] The gap 16 is filled with a resin material 18 for solid assembly of the upper shaft 4 and the intermediate shaft 6, and the resin protrusion 20 is formed through the injection hole 12.
    [22] Accordingly, a solid assembly of the upper shaft 4 and the intermediate shaft 6 is achieved.
    [23] The resin material 18 is filled in the gap 16 by the resin material protrusion 20 falling off during the collision of the vehicle, so that the degree of overlap between the upper shaft 4 and the intermediate shaft 6 is expanded to absorb shocks. Done.
    [24] And the resin material 18 filled in the gap 16 is intended to transfer the steering force while maintaining the assembly without gap between the upper shaft 4 and the intermediate shaft (6).
    [25] However, in the injection process in which the resin material is filled in the gap between the upper shaft and the intermediate shaft constituting the steering shaft, the resin material is injected into the injection hole in the state where the flow is generated in the plane portion of the upper shaft and the intermediate shaft. There is a problem that a minute gap occurs.
    [26] In addition, due to the load of the injection device with the steering shaft settled, the center center between the upper shaft and the intermediate shaft is slightly distorted, so that a small gap is generated in the upper shaft plane and the intermediate shaft plane to generate a play in the direction of rotation of the steering wheel. There is a problem.
    [27] An object of the present invention devised to solve the problems of the prior art as described above is to improve the assembly structure of the steering shaft is a steering wheel is installed and transmits the steering force to the steering gear through the intermediate shaft to prevent play between the steering shaft and accurate rotational force The present invention provides a vehicle steering shaft for improving transmission and operation feeling.
    [1] 1 shows a steering shaft according to the prior art;
    [2] FIG. 2 shows A-A of FIG. 1; FIG.
    [3] 3 illustrates a steering shaft in accordance with the present invention.
    [4] 4 shows B-B of FIG. 3;
    [5] * Description of the symbols for the main parts of the drawings *
    [6] 30: steering shaft
    [7] 32: upper shaft
    [8] 34: Hollow department
    [9] 36: Upper shaft flat part
    [10] 38: curved surface
    [11] 40: Injection ball
    [12] 42: Middle axis
    [13] 46: Resin
    [14] 48: Middle axis plane part
    [28] The present invention for realizing this
    [29] In the steering shaft,
    [30] It is to provide a steering shaft for a vehicle, characterized in that formed by forming an injection hole in the curved portion formed between the upper shaft plane portion formed between the hollow portion of the upper shaft on which the steering wheel is installed.
    [31] Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.
    [32] 3 is a view showing a steering shaft according to the present invention, Figure 4 is a view showing B-B of FIG.
    [33] The steering shaft 30 has an injection hole 40 in the curved portion 38 formed between the upper shaft flat portion 36 formed in the hollow portion 34 of the upper shaft 32 on which the steering wheel (not shown) is installed. It is made by forming a plurality of holes.
    [34] The injection hole 40 is symmetrically formed in the both curved surface 38 of the upper shaft 32. As shown in FIG.
    [35] Referring to the operation of the present invention made as described above, the upper shaft when filling the resin material 46 in the gap 44 provided between the upper shaft 32 and the intermediate shaft 42 constituting the steering shaft 30. Both sides of the plane portion 36 and the intermediate shaft plane portion 48 are positioned at the left and right sides by being rotated by 90 ° so as to be maintained in the up and down positions.
    [36] Accordingly, the resin material 46 is filled and injected through the injection hole 40 formed in the curved portion 38 of the upper shaft 32 to sufficiently cover the upper shaft flat portion 36 and the intermediate shaft flat portion 48. Filling of the resin material 46 is made.
    [37] By rotating the steering shaft 30 by 90 °, the center of the center shaft between the upper shaft 32 and the intermediate shaft 42 is maintained by the load of the injection apparatus, and the gap during filling of the resin material 46 No flow occurs on 44, resulting in a tight assembly.
    [38] As the assembly of the upper shaft and the intermediate shaft of the steering shaft is made precisely, there is an effect of preventing play during operation in the rotational direction.
    [39] There is an effect that the operation feeling of the steering wheel through the steering shaft is improved.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] In the steering shaft,
    The steering shaft for a vehicle, characterized in that formed by forming an injection hole in the curved portion formed between the upper shaft plane portion formed between the hollow portion of the upper shaft on which the steering wheel is installed.
    [2" claim-type="Currently amended] The steering shaft of claim 1, wherein the injection holes are formed in both curved portions of the upper shaft and symmetrically formed on a horizontal line.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2001-03-21|Application filed by 한국델파이주식회사
    2001-03-21|Priority to KR1020010014564A
    2002-10-04|Publication of KR20020074654A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020010014564A|KR20020074654A|2001-03-21|2001-03-21|Steering shaft for vehicle|
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