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1. 发明申请

US20210190163A1 COIL SPRING 有权
公开(公告)号：US20210190163A1
公开(公告)日：2021-06-24
申请号：US17055417
申请日：2019-04-24
申请人： Suncall Corporation , Toyota Jidosha Kabushiki Kaisha
发明人： Ryuji KISHIHARA , Seiji OKAMURA
IPC分类号： F16F1/06 , F16F1/04
摘要： A coil spring of this invention includes a first end coil part with a first bearing surface facing to the first side in the axial direction, a second end coil part with a second bearing surface facing to the second side in the axial direction and a central coil part connecting the first and second end coil parts. A displacement length in the axial direction from the outer end portion until the inner end portion of the first end coil part is a thickness of a spring wire forming the coil spring so that a space between the outer end portion of the first end coil part and an inner end portion of the central coil part is zero, and a displacement length in the axial direction between the outer end portion of the first end coil part and a point away along the circumferential direction from the outer end portion toward the inner end portion of the first end coil part by a half of turn around the axial line is less than a half of the thickness of the spring wire.

2. 发明申请

US20190085927A1 COIL SPRING 审中-公开
公开(公告)号：US20190085927A1
公开(公告)日：2019-03-21
申请号：US16093511
申请日：2017-02-07
申请人： Suncall Corporation , Toyota Jidosha Kabushiki Kaisha
发明人： Ryuji KISHIHARA , Seiji OKAMURA
IPC分类号： F16F1/06 , B21F3/02
摘要： In the coil spring of the present invention, a helical space defined by a space between coils has a first end region whose space is increased as it extends towards the other side in the axial direction from a first reference point where the space is zero, a reference region whose space is set at a reference value L (L>0), and a second end region whose space becomes narrow as it extends toward the other side in the axial direction and zero at a second reference point. The first end region has a first end outer part and a first end inner end. In a case where a pitch angle of the space between coils that causes the displacement of the space between coils per turn of the helical space to be L is a reference pitch angle Pa, the pitch angle in the first end outer part is set at Pa while the pitch angle in the first end inner part is set at Pb (Pb>Pa).

3. 发明申请

US20210324930A1 COIL SPRING 有权
公开(公告)号：US20210324930A1
公开(公告)日：2021-10-21
申请号：US17364196
申请日：2021-06-30
申请人： Suncall Corporation , Toyota Jidosha Kabushiki Kaisha
发明人： Ryuji KISHIHARA , Seiji OKAMURA
IPC分类号： F16F1/06 , F16F1/04
摘要： In the coil spring of the present invention, a helical space defined by a space between coils has a first end region whose space is increased as it extends towards the other side in the axial direction from a first reference point where the space is zero, a reference region whose space is set at a reference value L (L>0), and a second end region whose space becomes narrow as it extends toward the other side in the axial direction and zero at a second reference point. The first end region is configured such that the number of turns of the helical space is greater than 1 and the space between coils in a terminal position is greater than the reference value L. The helical space has a first transitional region between the terminal position of the first end region and the reference region, the first transitional region being configured so that the distance of space between coils is reduced from the terminal position of the first end region along the helical shape of the helical space toward the other side in the axial direction and becomes the reference value L.

4. 发明申请

US20210190162A1 COIL SPRING 有权
公开(公告)号：US20210190162A1
公开(公告)日：2021-06-24
申请号：US16093496
申请日：2017-02-07
申请人： SUNCALL CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Ryuji KISHIHARA , Seiji OKAMURA
IPC分类号： F16F1/06 , F16F1/04
摘要： In the coil spring of the present invention, a helical space defined by a space between coils has a first end region whose space is increased as it extends towards the other side in the axial direction from a first reference point where the space is zero, a reference region whose space is set at a reference value L (L>0), and a second end region whose space becomes narrow as it extends toward the other side in the axial direction and zero at a second reference point. The first end region is configured such that the number of turns of the helical space is greater than 1 and the space between coils in a terminal position is greater than the reference value L. The helical space has a first transitional region between the terminal position of the first end region and the reference region, the first transitional region being configured so that the distance of space between coils is reduced from the terminal position of the first end region along the helical shape of the helical space toward the other side in the axial direction and becomes the reference value L.

5. 发明申请

US20160167106A1 SPIRAL SPRING MANUFACTURING METHOD 有权
标题翻译：螺旋弹簧制造方法
公开(公告)号：US20160167106A1
公开(公告)日：2016-06-16
申请号：US14436794
申请日：2013-11-20
申请人： SUNCALL CORPORATION
发明人： Ryuji KISHIHARA , Naoya WADA , Keiichiro TERATOKO
IPC分类号： B21F3/08
CPC分类号： B21F3/08 , B21D11/07 , B21F23/00 , B21F35/02 , F16F1/10 , F16F2226/04 , F16F2238/026 , Y10T29/49611
摘要： The present invention includes a spiral forming step causing a substantially liner elongated member, which is conveyed toward one side in a longitudinal direction of the elongated member by a pair of conveying rollers, to be engaged at one side in a second direction with a pressing member movable in the second direction so that a spiral body including the fixed coil part, the first movable coil part and the second movable coil part is formed from the linear elongated member. The spiral forming step is configured to control the position of the pressing member with respect to the second direction, while recognizing, based on a signal from a rotational speed sensor for detecting the rotational speed of the conveying roller, a relationship between a position in the longitudinal direction of the elongated member that is engaged with the pressing member and the position in the circumferential direction after the spiral body is formed.
摘要翻译：本发明包括螺旋形成步骤，其使得基本上衬里的细长构件通过一对输送辊在长形构件的纵向方向上被一侧输送，以在第二方向上与按压构件可沿第二方向移动，使得包括固定线圈部分，第一可动线圈部分和第二可动线圈部分的螺旋体由直线细长部件形成。螺旋形成步骤被配置为基于来自用于检测输送辊的转速的转速传感器的信号来识别按压部件相对于第二方向的位置，在与形成螺旋体之后，与按压部件接合的细长部件的长度方向和周向的位置。

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