US 11,988,263 B2
Damper device
Tomoyuki Hosoya, Kanagawa (JP); and Jun Saito, Kanagawa (JP)
Assigned to PIOLAX, INC., Kanagawa (JP)
Appl. No. 17/611,789
Filed by PIOLAX, INC., Kanagawa (JP)
PCT Filed Apr. 2, 2020, PCT No. PCT/JP2020/015235
§ 371(c)(1), (2) Date Nov. 16, 2021,
PCT Pub. No. WO2020/241045, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-099405 (JP), filed on May 28, 2019.
Prior Publication US 2022/0235843 A1, Jul. 28, 2022
Int. Cl. F16F 9/12 (2006.01); F16H 57/00 (2012.01)
CPC F16F 9/12 (2013.01) [F16H 57/0006 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A damper device, comprising:
a base;
a rotor rotatably supported by the base;
a cap defining a housing chamber of the rotor together with the base; and
viscous liquid filled in the housing chamber, wherein
the base and the cap define a reservoir chamber for the viscous liquid on an outer side of the housing chamber in a radial direction,
the cap is fixed to the base to seal between the housing chamber and the reservoir chamber, so that a communication between the housing chamber and the reservoir chamber is blocked, and
the reservoir chamber houses the viscous liquid discharged from the housing chamber.