PROBLEM TO BE SOLVED: To increase a spring ratio in a direction X and a direction Y under utilization of a non-circular shape when an insulator has the non-circular shape.SOLUTION: An insulator 16 has a rectangular form as seen in its top plan view, and a pair of elastic walls 40 in a direction X, opposed to each other in the direction X are made short in a direction Y and have a thin thickness, and projection surfaces in the direction X are made small. A pair of elastic walls 42 in the direction Y, opposed to each other in the direction Y are made elongated in the direction X and have a thick thickness, and projection surfaces in the direction Y are made large. A second fixing metal fitting 14 has also a long rectangular form in the direction X as seen in its top plan view, and has a pair of restricting walls 60 in the direction X, opposed to each other in the direction X and a pair of restricting walls 62 in the direction Y, opposed to each other in the direction Y, and the restricting walls 60 in the direction X are set low in height and the restricting walls 62 in the direction Y are set high in height. A first fixing metal fitting 12 is provided with a pair of restricting protrusions 50 in the direction X, opposed to each other in the direction X and a pair of restricting walls 52 in the direction Y, opposed to each other in the direction Y. A projection length of the restricting walls 50 in the direction X is made short so as not to be overlapped with the restricting walls 60 in the direction X and a projection length of the restricting protrusions 52 in the direction Y is made long so as to be overlapped with the restricting walls 62 in the direction Y.SELECTED DRAWING: Figure 6
【課題】インシュレータを非円形としたとき、この非円形形状を利用して、X方向とY方向におけるバネ比を大きくする。【解決手段】インシュレータ16を平面視で長方形とし、X方向にて対向する一対のX方向弾性壁40をY方向に短く薄肉とし、かつX方向投影面積を小さくする。Y方向にて対向する一対のY方向弾性壁42をX方向に長く厚肉とし、かつY方向投影面積を大きくする。第2取付金具14も平面視でX方向に長い長方形とし、X方向にて対向する一対のX方向拘束壁60とY方向にて対向する一対のY方向拘束壁62を備え、X方向拘束壁60を低くし、Y方向拘束壁62を高くする。第1取付金具12は、X方向にて対向する一対のX方向拘束突部50とY方向にて対向する一対のY方向拘束壁52を備え、X方向拘束壁50の突出長さをX方向拘束壁60と重ならない程度に短くし、Y方向拘束突部52の突出長さをY方向拘束壁62と重なる程度に長くする。【選択図】図6
VIBRATION-PROOF DEVICE
防振装置
2016-05-12
Patent
Electronic Resource
Japanese
BRACKET FOR VIBRATION-PROOF DEVICE AND VIBRATION-PROOF DEVICE
European Patent Office | 2016
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