Mount for vehicle

A mount for a vehicle that is provided at a portion at which damping is desired and that is fastened to one of a vibrating body in which vibration or impact occurs and a supporting body for supporting the vibrating body by a stud bolt, comprising:

• a flange into which the stud bolt is inserted and that supports the stud bolt;
• an insulator configured to surround the flange;
• a housing coupled to the other one of the vibrating body or the supporting body and to which the insulator is fixed;
• a chamber formed inside the housing as a space surrounded by the housing and the insulator, the chamber being filled with a fluid;
• and
• a damping part mounted on the housing to divide the chamber into two spaces and to be disposed in the chamber,
• wherein the damping part includes:
• an upper cover formed to have a disc shape as an upper constituent element;
• a large displacement inlet passage disposed adjacent to a centrifugal center of the upper cover as a hole perforated in the upper cover in a vertical direction;
• at least one small displacement inlet passage disposed adjacent to a circumference of the upper cover as a hole perforated in the upper cover in the vertical direction;
• a lower cover formed to have a disc shape as a lower constituent element coupled to a lower side of the upper cover;
• a membrane mounting groove disposed adjacent to the circumference of the lower cover to communicate with the small displacement inlet passage and downwardly pressed from an upper surface of the lower cover;
• a large displacement communicating groove disposed adjacent to a centrifugal center of the lower cover to communicate with the large displacement inlet passage and downwardly pressed from the upper surface of the lower cover;
• a circulating passage extending to the outside of a radial direction of the lower cover while forming a spiral around the large displacement communicating groove from the large displacement communicating groove and downwardly pressed from the upper surface of the lower cover;
• a large displacement outlet passage perforated in the lower cover in the vertical direction at an end of the circulating passage extending to the outside of the radial direction of the lower cover;
• at least one small displacement outlet passage perforated in the lower cover in the vertical direction at a lower end of the membrane mounting groove;
• and
• a membrane formed to have a shape corresponding to the membrane mounting groove and mounted on the membrane mounting groove to have a clearance with the membrane mounting groove.