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Title:
変位表示装置、制振ダンパー及び土木建築構造物
Document Type and Number:
Japanese Patent JP7223670
Kind Code:
B2
Abstract:
To provide a displacement display device that lowers the case height of a unidirectional rotation conversion unit that stores rotating elements such as a plurality of rotating shafts and prevents malfunction or failure even if shaking during an earthquake is transmitted.SOLUTION: Placed inside a case 20 that stores a unidirectional rotation conversion unit 23 are: a first rotating shaft 31 to which a first one-way clutch 33 and a second one-way clutch 34 are fixed; a second rotating shaft 37 to which only the forward rotation transmitted to the first one-way clutch is transmitted as one-way rotation; and a third rotating shaft 40, to which only the reverse rotation transmitted to the second one-way clutch is transmitted as one-way rotation, which synthesizes and transmits the one-way rotation of the second rotating shaft, and transmits these one-way rotations to a cumulative displacement amount display unit 24. The first rotating shaft, the second rotating shaft, and the third rotating shaft in the case are arranged parallel to the relative displacement direction in which a rack member 26 extends.SELECTED DRAWING: Figure 7

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Inventors:
Hitoshi Naito
Yasukuni Yoshioka
Kazuki Arizono
Keisuke Shioda
Application Number:
JP2019178052A
Publication Date:
February 16, 2023
Filing Date:
September 27, 2019
Export Citation:
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Assignee:
JFE Civil Engineering & Construction Co., Ltd.
International Classes:
E01D19/04; E01D1/00; E04H9/02; F16F15/02; G01B5/00
Domestic Patent References:
JP6546561B2
JP2003090722A
JP11125501A
JP2001208508A
JP2006214738A
Attorney, Agent or Firm:
田中 秀▲てつ▼
Hirose Hajime
Miyasaka Tohru
Tetsuya Mori