Invention Application
- Patent Title: SUSPENSION COIL SPRING
- Patent Title (中): 悬挂线圈弹簧
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Application No.: US14924319Application Date: 2015-10-27
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Publication No.: US20160046164A1Publication Date: 2016-02-18
- Inventor: Kenji YAMAMOTOYA , Hideto ENOMOTO , Ken TAKAHASHI , Toshiaki SATO , Mitsuhiro SUGIYAMA , Yoshio KOBAYASHI , Taichi INAGE , Tomotake KATO , Akihiko NISHIKAWA , Masahiro UMEZAWA , Michihiko AYADA , Suguru KAJIGAYA
- Applicant: Kenji YAMAMOTOYA , Hideto ENOMOTO , Ken TAKAHASHI , Toshiaki SATO , Mitsuhiro SUGIYAMA , Yoshio KOBAYASHI , Taichi INAGE , Tomotake KATO , Akihiko NISHIKAWA , Masahiro UMEZAWA , Michihiko AYADA , Suguru KAJIGAYA
- Applicant Address: JP Yokohama-shi, Kanagawa
- Assignee: NHK SPRING CO., LTD.
- Current Assignee: NHK SPRING CO., LTD.
- Current Assignee Address: JP Yokohama-shi, Kanagawa
- Priority: JP2013-167654 20130812
- Main IPC: B60G11/14
- IPC: B60G11/14
Abstract:
A suspension coil spring includes a lower end turn portion, an upper end turn portion, and a helical effective portion formed between the end turn portions. The lower end turn portion includes a first portion which contacts a lower spring seat irrespective of a load, and a second portion which contacts the lower spring seat or is separated from the same according to the load. The wire diameter of the second portion is greater than that of the first portion and an average wire diameter of the effective portion. The upper end turn portion includes a third portion which contacts an upper spring seat, and a fourth portion. The wire diameter of the fourth portion is greater that of the third portion and the average wire diameter of the effective portion.
Public/Granted literature
- US10358008B2 Suspension coil spring Public/Granted day:2019-07-23
Information query
