Damper and Handle Device Having the Same

摘要

An embodiment provides a damper a damper including: a housing; a rotor; and a sealing member. The housing includes outer and inner cylinder portions to define a filling space portion therebetween for filling with a viscose fluid. The rotor includes a head portion and a cylinder portion extended downwardly therefrom so as to be inserted into the filling space portion. The sealing member seals the filling space portion. The rotor further includes axially-extending first and second groove portions provided on outer and inner peripheral surfaces of the cylinder portion near the bottom portion thereof. At least one of the first groove portions includes a communicating portion which communicates the inside and the outside of the rotor, and the second groove portion is apart from the communicating portion in a circumferential direction.

主权项

1. A damper comprising:
a housing that includes
an outer cylinder portion,an inner cylinder portion provided inwardly of the outer cylinder portion,a bottom portion arranged to connect the outer cylinder portion and the inner cylinder portion anda filling space portion defined between the outer cylinder portion and the inner cylinder portion, a viscose fluid being filled in the filling space portion; a rotor that includes
a head portion anda rotor cylinder portion extended downwardly from the head portion and disposed in the filling space portion; and a sealing member arranged to seal the filling space portion, wherein the rotor further includes
first groove portions provided on an outer peripheral surface of the rotor cylinder portion near the bottom portion apart from the sealing member so as to extend in an axial direction anda second groove portion provided on an inner peripheral surface of the rotor cylinder portion near the bottom portion apart from the sealing member so as to extend in the axial direction, and wherein at least one of the first groove portions includes a communicating portion which communicates the inside and the outside of the rotor, and the second groove portion is apart from the communicating portion in a circumferential direction.