Patents Assigned to YAMANI SPRING CO., LTD.
  • Patent number: 8915223
    Abstract: Provided is a valve timing control apparatus that allows relaxation of manufacturing precision of a driving-side rotary member and a driven-side rotary member and that achieves space saving at the same time. An urging member includes at least one trough-folded portion and at least one crest-folded portion, one end side contact portion formed between one terminal end of the urging member and the trough-folded portion and coming into contact with a sealing element, and other end side contact portion formed between the other terminal end of the urging member and the crest-folded portion and coming into contact with a partitioning portion. In association with urging of the urging member, the distance between the one end side contact portion and the other end side contact portion along the urging direction is decreased and the angles of the trough-folded portion and the crest-folded portion are decreased.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: December 23, 2014
    Assignees: Aisin Seiki Kabushiki Kaisha, Yamani Spring Co., Ltd.
    Inventors: Atsushi Homma, Kazunari Adachi, Yuji Noguchi, Satoshi Nishizawa
  • Publication number: 20130213327
    Abstract: Provided is a valve timing control apparatus that allows relaxation of manufacturing precision of a driving-side rotary member and a driven-side rotary member and that achieves space saving at the same time. An urging member includes at least one trough-folded portion and at least one crest-folded portion, one end side contact portion formed between one terminal end of the urging member and the trough-folded portion and coming into contact with a sealing element, and other end side contact portion formed between the other terminal end of the urging member and the crest-folded portion and coming into contact with a partitioning portion. In association with urging of the urging member, the distance between the one end side contact portion and the other end side contact portion along the urging direction is decreased and the angles of the trough-folded portion and the crest-folded portion are decreased.
    Type: Application
    Filed: October 14, 2011
    Publication date: August 22, 2013
    Applicants: YAMANI SPRING CO., LTD., AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Atsushi Homma, Kazunari Adachi, Yuji Noguchi, Satoshi Nishizawa