Title:
コイルばね組立体
Document Type and Number:
Japanese Patent JP6499648
Kind Code:
B2
Abstract:
Provided is a coiled spring assembly, capable of properly engaging a seat for a coiled spring as a seat member with a coiled spring to prevent forced interference between an end turn of the coiled spring and the seat for the coiled spring and increase durability. The coiled spring (3) has an end turn (9) (11) formed up to a first turn with a reduced diameter and a transition portion (13) (15) with a diameter gradually increasing from the end turn (9) (11) to a body portion (7), the seat (5) for the coiled spring has a seat portion (17), a mounting shaft portion (19), and an enlarged diameter portion (21), the mounting shaft portion (19) has an axial length defining a gap or a zero-gap between the enlarged diameter portion (21) of the seat (5) for the coiled spring and the end turn in a free state in which the end turn (9) (11) is fitted to the mounting shaft portion and the bearing surface (9a) (11a) of the end turn (9) (11) is in contact with the receiving surface (17a) of the seat portion (17), and the transition portion (13) (15) circumvents the enlarged diameter portion (21) while the bearing surface (9a) (11a) of the end turn (9) (11) is in contact with the receiving surface (17a) of the seat portion (17).
Inventors:
Shinji Kato
Kengo Tsurugai
Morimoto Masashi
Kengo Tsurugai
Morimoto Masashi
Application Number:
JP2016529068A
Publication Date:
April 10, 2019
Filing Date:
June 19, 2015
Export Citation:
Assignee:
Nippon Jojo Co., Ltd.
International Classes:
F16F1/06; F16F1/12
Domestic Patent References:
| JP2007064345A | ||||
| JP2006338991A | ||||
| JP5126189A | ||||
| JP2006063379A | ||||
| JP1104719A |
Attorney, Agent or Firm:
Yuichi Sudo
Daisuke Sudo
Daisuke Sudo