| 摘要 |
PURPOSE:To certainly protect equipment by constituting the captioned apparatus so that a supported article is fixedly supported in case where the supported article is vibrated within an allowable limit and the fixed support for the supported article is released and is supported by a spring in case of the vibration over an allowable limit. CONSTITUTION:A suspension spring and a shift regulating apparatus 8 are arranged in the horizontal and vertical directions between a supporting body 3 onto which a supported article 2 is loaded and a base 6. Said apparatus 8 is equipped with a cylinder 10 fixed onto the base 6, and a piston 9 whose one edge contacts with the supporting body 3 is fitted in slidable ways into the cylinder 10, and an upper and the lower air chambers 19 and 20 are formed inside. An outer pipe 12 for the communication between the lower part of the cylinder and the lower side by a prescribed amount from the cylinder uppermost part is installed onto the cylinder 10, and in the state where the piston 9 is pushed-up into the uppermost part by an internal pressure, the supporting body 3 is fixedly supported, and in the anomaly where the piston 9 shifts by a prescribed amount, the upper and the lower chambers 19 and 20 are allowed to communicate through the outside pipe 12, and the piston 9 shifts to the lowermost part and is supported by the suspension spring. |
