发明名称 DEVICE TO PENETRATE CEILING WALL OF SOUNDPROOF HOUSE
摘要 PURPOSE:To obtain the soundproof house for a transformer or the like having enough resistance to vibration by pressing plural pieces of vibration-proof rubber and plural presser-plates thereof against between the pocket and a through-hole of the ceiling wall from the pocket-side to the through-hole so as to fill up a space between the through-hole and the pocket with the vibration-proof material. CONSTITUTION:On four sides of a square between a through-hole 13 of ceiling of a soundproof house 1 and pocket 3, pieces of vibration-proof rubber 9 and presser-plates 10 thereof are pressed against inside wall of the through-hole 13 from the pocket-side by a pressing bolt 11. Also, the other space is filled with sound absorbing material 5 and an opening of upper end is stopped up with sound-damping rubber 7 and a rainwater-draining cover 8. This vibration-proof rubber 9 prevents vibration of the pocket 3 and the force generated in case of earthquake from being transmitted to the booth 1. In addition, a space between the rubber presser plates 10 and the through-hole 13 facilitates assembly of the soundproof house 1 for a transformer in site.
申请公布号 JPS59155908(A) 申请公布日期 1984.09.05
申请号 JP19830029433 申请日期 1983.02.25
申请人 HITACHI SEISAKUSHO KK 发明人 YOSHIYUKI KAZUTAMI
分类号 H01F27/04;H01F27/33;(IPC1-7):H01F27/33 主分类号 H01F27/04
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