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AssigneeMitsubishi Steel Mfg. Co., Ltd.
InventorsToshio Omi, Takafumi Fujita, Goro Saito, Kozo Sakaba, Jiro Ishida
Estimating the term…
An anti-vibration apparatus for reducing seismic acceleration is disclosed wherein X-axis direction linear motion means are horizontally displaceably mounted on X-axis direction rails installed on a foundation, and mounted on the X-axis direction linear motion means are Y-axis direction rails through Y-axis direction linear motion means or directly, and X- and Y-axis direction tension springs are disposed between the foundation and the X-axis direction rails and between the X-axis direction linear motion means and the machinery mounting platform, whereby the X- and Y-axis direction linear motion means are adapted to support transverse upward as well as downward loads together with the X- and Y-axis direction rails. The machinery mounting platform may additionally pivotally carry thereon another machinery mounting platform through articulated lever mechanisms using the former platform as a support frame.
An anti-vibration apparatus for reducing seismic acceleration comprising at least two parallel X-axis direction rails horizontally installed on a foundation, at least two X-axis direction linear motion means displaceably mounted on each of said X-axis direction rails, at least two Y-axis direction linear motion means, at least two parallel Y-axis direction rails each relatively displaceably coupled to said X-axis direction rails, the X-axis direction rails and the Y-axis direction rails being disposed in different planes, a machinery mounting platform relatively displaceably coupled to said Y-axis direction rails, an X-axis direction tension spring disposed between said foundation and each of at least two X-axis direction linear motion means mounted on an X-axis direction rail, and a Y-axis direction tension spring coupled between each of at least two X-axis direction linear motion means mounted on an X-axis direction rail and said machinery mounting platform.
Dependencies are inferred from the claim text.