| 摘要 |
PURPOSE:To eliminate residual air and to obtain stable performance, by placing a bush, having a cavity part provided with one injecting hole of fluid, to be set in a vacuum chamber and making the inside of the cavity part a pressure reduced condition thereafter injecting the fluid from the injecting hole. CONSTITUTION:A bush 1 forms a cavity part 5 inside a rubber structure between an inner cylinder and an outer cylinder, and the bush 1, forming one injecting hole 7 of fluid, is set in a vacuum chamber 11. Next the vacuum chamber 11 places the inside of its pressure reducing chamber 12 in a vacuum condition by a vacuum pump, while a nozzle 17 is inserted into the fluid injecting hole 7, and fluid of silicone oil or the like is pressurized in a cylinder part 19 and injected into the cavity part 5 by opening a cock 21. Accordingly, it is required for the bush 1 to provide only one injecting hole 7, and the bush 1, in which the fluid can be rapidly injected, enables performance to be stably obtained preventing air from being left in the bush 1.h l;. |
