US 12,241,517 B2
Vibration reduction device
Gunwoo Kim, Hwaseong-si (KR); and Byung Min Lee, Hwaseong-si (KR)
Assigned to Hyundai Transys Inc., Seosan-si (KR)
Filed by Hyundai Transys Inc., Seosan-si (KR)
Filed on Sep. 27, 2023, as Appl. No. 18/475,511.
Claims priority of application No. 10-2022-0123707 (KR), filed on Sep. 28, 2022.
Prior Publication US 2024/0102532 A1, Mar. 28, 2024
Int. Cl. F16F 15/14 (2006.01)
CPC F16F 15/1485 (2013.01) [F16F 2224/025 (2013.01); F16F 2232/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A vibration reduction device comprising:
a support plate;
a first side mass positioned at an edge of one side surface of the support plate;
a second side mass disposed to be opposite to the first side mass and positioned at an edge of another side surface of the support plate; and
an impact absorbing member coupled to the support plate and configured to come into contact with the first side mass or the second side mass,
wherein the impact absorbing member comprises:
a ring portion coupled to a coupling surface defined along a circumferential surface of the support plate adjacent to an inner-circumferential portion of the support plate, the ring portion having a smooth surface facing the first side mass or the second side mass; and
a plurality of over-molding portions defined along an outer periphery of the ring portion,
wherein a width between a center of one of the plurality of over-molding portions and a center of another adjacent one of the plurality of over-molding portions conforms to a width between left and right lower end edge portions of the first side mass or the second side mass, such that the one of the plurality of over-molding portions and the another adjacent one of the plurality of over-molding portions are in contact with the left and right lower end edge portions of the first side mass or the second side mass.