| 摘要 |
PURPOSE:To prevent generation of resonance further increase a vibro-isolating effect, by arranging upper and lower resilient members of mutually different spring constant to the upper and the lower of a supporting mount and holding said resilient members with tightening tools in top and bottom ends of a main shaft and flange part. CONSTITUTION:A flange part 6 is constituted to the central part of a main shaft 5, inserted through a supporting mount 1, and an upper side plate 15, inserted with an upper half part 14 of the main shaft 5, is adapted to the flange part 6. Then plural layers of resilient materials 7 are laminated on the upper side plate 15 and held by a tightening tool 17 to form an upper resilient member 7a. While a lower side plate 23 is inserted with the main shaft 5 from the lower and adapted to the flange part 6, then plural layers of resilient materials 7 is laminated to the lower of said plate 23, and held by a tightening tool 17 to form a lower resilient member 7b. A spring constant of said upper resilient member 7a and lower resilient member 7b is arragned to values different from each other. |
