Title:
ROTARY DAMPER
Document Type and Number:
WIPO Patent Application WO/2018/168788
Kind Code:
A1
Abstract:
Provided is a rotary damper with which the timing for generating braking torque can be set freely. Groove-like bypass passages (805) that are longer in the circumferential direction than vanes (501) are formed in the upper surface (803) of a torque adjustment plate (8) arranged in the bottom part (201) of a cylindrical chamber (200). When the rotor (5) rotates in a first rotational direction R1, if both end surfaces (508a, 508b) of the vanes (501) are positioned within the bypass passages (805) regions (218) and regions (217) are connected via the bypass passages (805), enabling movement of a viscous fluid (6) from the regions (217) to the regions (218). Subsequently, if the rotor (5) rotates further in the first rotational direction R1 and one or both of the end surfaces (508a, 508b) of the vanes (501) is outside of the bypass passages (805), the regions (218) and the regions (217) are not connected via the bypass passages (805), and the viscous fluid (6) is unable to move from the regions (217) to the regions (218).
Inventors:
KANEKO RYOHEI (JP)
Application Number:
PCT/JP2018/009557
Publication Date:
September 20, 2018
Filing Date:
March 12, 2018
Export Citation:
Assignee:
OILES INDUSTRY CO LTD (JP)
International Classes:
F16F9/14; F16F9/48
Foreign References:
| JPH11210802A | 1999-08-03 | |||
| JP3808122B2 | 2006-08-09 | |||
| JP2000120748A | 2000-04-25 | |||
| JPH07301272A | 1995-11-14 |
Other References:
See also references of EP 3597958A4
Attorney, Agent or Firm:
OHZEKI, Mitsuhiro (JP)
Download PDF: