Mount bushing
AssigneeDn Automotive Corporation
InventorsWoo Seon Jo, Suk Dong Jang, Dong Hyeon Yoo
Life of this patent
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Abstract
A mount bushing is proposed. The mount bushing is configured to minimize frequency shifting according to difference of dynamic properties applied by a load input to a mount. The mount bushing includes an outer tube, an inner tube provided in the outer tube, a rubber part provided between the outer tube and the inner tube, a tubular mass provided in the rubber part and having an opening formed by partially penetrating an outer circumferential surface thereof, and a stopper shaped to protrude outward from the inner tube to pass through the opening of the tubular mass, wherein the mount bushing is configured to minimize mutual interference between the mass and the stopper in deformation due to an external force.
Claims4
A mount bushing comprising:
- an outer tube;
- an inner tube provided in the outer tube;
- a rubber part provided between the outer tube and the inner tube, wherein the rubber part comprises a ring-shaped center portion, a first connecting portion connecting the center portion to the outer tube, and a second connecting portion connecting the center portion to the inner tube;
- a tubular mass embedded inside the ring-shaped center portion of the rubber part, wherein the tubular-mass embedded center portion includes an opening formed in a circumferential area thereof;
- and
- a stopper unitarily formed with the inner tube and protruded radially outwardly from the inner tube such that a distal end of the stopper is received in the opening of the tubular-mass embedded center portion,
- wherein the stopper is configured to move within the opening of the tubular-mass embedded center portion when an external load is applied to the mount bushing, while the stopper is limited from contacting the tubular mass to minimize frequence shifting in the mount bushing.
Dependencies are inferred from the claim text.