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公开(公告)号：EP2599566A1
公开(公告)日：2013-06-05
申请号：EP11812598.8
申请日：2011-07-28
Applicant: NHK Spring Co., Ltd.
Inventor： KATSUYAMA, Akira , MORISHIMA, Takayuki , YAJIMA, Takashi , MORI, Yuji , NUKUI, Kotaro
Abstract: A coil wire material (30) is bent by a first roll (32), a second roll (34), and a third roll (36). The bent coil wire material (30) is pressed in a screwing direction, to shape a coil spring having a desired diameter and a pitch. A desired pitch can be accurately formed in a manner that a second roll (34) provided on a downstream side of a conveying direction of the coil wire material (30) is configured to be able to move back and forth along the screwing direction of the coil spring and to be tiltable about an axis of rotation parallel to the conveying direction of the coil wire material (30).
Abstract translation: 线圈线材（30）由第一辊（32），第二辊（34）和第三辊（36）弯曲。 弯曲的线圈线材（30）以螺纹方向被按压，以形成具有所需直径和间距的螺旋弹簧。 期望的间距可以以使得设置在线圈线材（30）的输送方向的下游侧的第二辊（34）被构造成能够沿着线圈线材的旋转方向前后移动的方式被精确地形成 并且能够绕平行于线圈线材（30）的输送方向的旋转轴线倾斜。
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公开(公告)号：EP2599566B1
公开(公告)日：2017-12-20
申请号：EP11812598.8
申请日：2011-07-28
Applicant: NHK Spring Co., Ltd.
Inventor： KATSUYAMA, Akira , MORISHIMA, Takayuki , YAJIMA, Takashi , MORI, Yuji , NUKUI, Kotaro
Abstract: A coil wire material (30) is bent by a first roll (32), a second roll (34), and a third roll (36). The bent coil wire material (30) is pressed in a screwing direction, to shape a coil spring having a desired diameter and a pitch. A desired pitch can be accurately formed in a manner that a second roll (34) provided on a downstream side of a conveying direction of the coil wire material (30) is configured to be able to move back and forth along the screwing direction of the coil spring and to be tiltable about an axis of rotation parallel to the conveying direction of the coil wire material (30).
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