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    • 8. 发明授权
    • Pretensioner
    • 预紧器
    • US08070085B2
    • 2011-12-06
    • US12551324
    • 2009-08-31
    • Taku Yamada
    • Taku Yamada
    • B65H75/48
    • B60R22/4628B21C23/205B21J5/02B21K21/00
    • A pretensioner is provided, which can be partially changed in mechanical strength of in a cylinder, in addition, can be widely used. In the pretensioner, the cylinder is molded by forging, and a positioning portion as a high-strength portion is formed from a partition formed using a excess portion produced during the forging-molding. Therefore, while an outer circumferential shape of the cylinder is not changed, a specification of the positioning portion can be varied, the specification including a formation position of the positioning portion, an extension dimension of the positioning portion from the cylinder, and thickness of the positioning portion along a through direction of the cylinder.
    • 提供了预紧器,其可以部分地改变在气缸中的机械强度,此外,可以被广泛使用。 在预紧器中,通过锻造成型圆筒,作为高强度部的定位部由在锻造成型时产生的多余部分形成的隔壁形成。 因此,虽然气缸的外周形状没有改变,但可以改变定位部分的规格,包括定位部分的形成位置,定位部分从气缸的延伸尺寸和厚度的指定 定位部分沿着圆筒的贯穿方向。