Method and apparatus for manufacturing a stabilizer bar
    6.
    发明授权
    Method and apparatus for manufacturing a stabilizer bar 失效
    用于制造稳定杆的方法和装置

    公开(公告)号:US5491996A

    公开(公告)日:1996-02-20

    申请号:US934446

    申请日:1992-10-05

    摘要: A stabilizer bar or a similar metallic tube product for vehicles, has a central portion and at least two bent portions forming legs. The bar includes a thick-walled metallic tube having in the central portion a wall thickness and outside diameter in a ratio amounting to at least 1/10. This tube has an outside wall portion bent with a restricted thinning, ranging from about 5 to 15%. The bent portions are bent with an average bending radius of curvature in the range from about 1.4 to 2.1 times the outside diameter of the tube. Apparatus and methods can manufacture stabilizer bars or similar tubular metallic products of the foregoing type. For example, a method includes the steps of fitting to a bending arm one end of the thick-walled metallic tube. An inside wall portion of the tube has a radial spacing from a bending center of curvature, no greater than the length of the bending arm. The tube and the heating zone move relatively, with the heating zone advancing along the tube. Circular movement of the bending arm is resisted with a force sufficient to displace the flexure plane (separating compression zone from tension zone) radially outward from the center of curvature and to thin the outside wall of the metallic tube by about 5 to 15%. Resistance of the circular movement can be preformed with a gear and gear rack.

    摘要翻译: PCT No.PCT / FI91 / 00063 Sec。 371日期:1992年10月5日 102(e)日期1992年10月5日PCT 1991年3月5日PCT公布。 公开号WO91 / 13707 日期1991年9月19日。用于车辆的稳定杆或类似的金属管产品具有形成腿部的中心部分和至少两个弯曲部分。 该棒包括厚壁的金属管,其中心部分的壁厚和外径的比例至少为1/10。 该管具有弯曲的受限稀释的外壁部分,其范围为约5至15%。 弯曲部分以平均弯曲曲率半径弯曲在管的外径的约1.4至2.1倍的范围内。 装置和方法可以制造上述类型的稳定杆或类似的管状金属制品。 例如,一种方法包括将厚壁金属管的一端装配到弯曲臂的步骤。 管的内壁部分具有不大于弯曲臂的长度的曲率中心的径向间隔。 管和加热区相对移动,加热区沿管延伸。 弯曲臂的圆周运动受到足以将弯曲平面(分离压缩区域与张力区域)从曲率中心径向向外移动并且将金属管的外壁细化约5至15%的力来抵抗。 可以用齿轮和齿条进行圆周运动的阻力。

    COIL SPRING
    7.
    发明申请
    COIL SPRING 审中-公开

    公开(公告)号:US20180215226A1

    公开(公告)日:2018-08-02

    申请号:US15421384

    申请日:2017-01-31

    IPC分类号: B60G11/14 F16F1/12

    摘要: A coil spring according to one embodiment includes a lower end turn portion which is in contact with a lower spring seat, an upper end turn portion which is in contact with an upper spring seat, and an effective portion between the lower end turn portion and the upper end turn portion. The coil spring is cylindrical about an axis of the effective portion in its free shape which is not compressed. Further, with respect to a coordinate system in which a force line is assumed as a Z-axis, the coil spring is cylindrical with a constant pitch in a direction along the Z-axis in its compressed shape which is compressed to a specified height.