Title:
ダンパー
Document Type and Number:
Japanese Patent JP6784763
Kind Code:
B2
Abstract:
A damping device, comprising: an outer shell (1), the outer shell (1) having a cavity; a rotating shaft (5) able to rotate into the cavity of the outer shell (1), the part of the rotating shaft (5) positioned in the cavity being provided with an external screw thread; a guide sleeve (3) provided with an internal screw thread and mounted inside the cavity of the outer shell (1) in a manner enabling reciprocating movement along the axial direction, the internal screw thread thereof engaging with the external screw thread of the rotating shaft; a guide structure used for guiding the axial movement of the guide sleeve (3) also being arranged inside the cavity of the outer shell (1), the guide sleeve (3) engaging with or separating from the guide structure by means of the axial movement, and when the two are separated, the guide sleeve (3) being able to rotate with the rotating shaft (5); a unidirectional valve channel is arranged on the guide sleeve (3), and when the axial movement of the guide sleeve (3) causes same to separate from the engagement with the guide structure, the unidirectional valve channel opens; when the guide sleeve (3) moves in the reverse axial direction, the unidirectional valve channel closes, and a fluid medium is forced through any one or numerous of a gap between the rotating shaft (5) and the guide sleeve (3), a gap between the guide sleeve (3) and the outer shell (1), and a damping channel arranged on the rotating shaft (5).
Inventors:
Wang Xiang
Hayashi Youki
Zhang Yuan
Hayashi Youki
Zhang Yuan
Application Number:
JP2018534966A
Publication Date:
November 11, 2020
Filing Date:
January 16, 2017
Export Citation:
Assignee:
Wang Xiang
International Classes:
F16F9/14; A47K13/12; E05F3/04; E05F3/14
Domestic Patent References:
| JP2014502684A | ||||
| JP2014178011A |
Foreign References:
| US20130043100 | ||||
| WO2015144034A1 |
Attorney, Agent or Firm:
▲吉▼川 俊雄
Kana Ichikawa
Kana Ichikawa