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公开(公告)号：JP5052980B2
公开(公告)日：2012-10-17
申请号：JP2007187275
申请日：2007-07-18
申请人： 株式会社神戸製鋼所
摘要： PROBLEM TO BE SOLVED: To provide a simple solid-borne sound reduction structure for reducing solid-borne sound reduction structure which is hardly degrading with high durability. SOLUTION: A solid-borne sound reduction structure 100 comprises a structural body 200 radiating noise, a surface plate part 1 covering at least a part of the surface 200a of the structural body 200 and having a gas-ventilating part 1a capable of passing gas in the direction of the thickness of thereof, and an outer circumferential wall surface part 2 for securing the surface plate part 1 to the structural body 200. The surface plate part 1 is so supported as to vibrate with the surface 200a of the structural body 200 in one body. The outer circumferential wall surface part 2 supports the surface plate part 1 so as to define an inner gas chamber between the surface 200a of the structural body 200 and the surface plate part 1. COPYRIGHT: (C)2008,JPO&INPIT
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公开(公告)号：JP4754836B2
公开(公告)日：2011-08-24
申请号：JP2005019017
申请日：2005-01-27
申请人： 株式会社神戸製鋼所
CPC分类号： B60J5/0418 , B60R13/08 , B60R13/0815 , G10K11/172
摘要： A double-wall structure ( 1 ), comprising plate-like bodies ( 2 ) and ( 3 ) disposed oppositely to each other to form an inner room ( 4 ) therebetween, peripheral members ( 5 ) disposed so that the inner room ( 4 ) can be completely or approximately closed, and perforated plates ( 13 ) with a large number of holes ( 8 ) disposed between the plate-like bodies facing each other. The double-wall structure is characterized in that an air layer (A) is interposed between the perforated plates and the peripheral members. Thus, since the double-wall structure can suppress the deterioration of a sound reduction index for sound with specific frequencies, it can stably develop sound insulation performance for sound with the various frequencies.
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公开(公告)号：JP4680963B2
公开(公告)日：2011-05-11
申请号：JP2007180118
申请日：2007-07-09
申请人： 株式会社神戸製鋼所
摘要： PROBLEM TO BE SOLVED: To provide a double wall structure with a frame body capable of suppressing any increase of the acoustic transmission to specified frequencies and consistently demonstrating the noise insulation performance for the specified frequencies. SOLUTION: The double wall structure 1 is formed by imagining a door as a part of a passenger car. This double wall structure 1 has plate bodies 2, 3 which are arranged parallel to each other, and opposite to each other with a predetermined distance therebetween. The plate bodies 2, 3 are constituted in a rectangular shape which is slightly longer in one direction. An internal space 4 is formed between the two plate bodies 2, 3 opposite to each other. A side plate 5 is provided so as to connect the plate bodies 2, 3 to each other, and the internal space 4 is substantially closed thereby. A closed space structure 6 having a perforated surface 6a in one surface of a parallelopiped body is provided at the position where the sound pressure in the internal space 4 is increased. COPYRIGHT: (C)2008,JPO&INPIT
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公开(公告)号：JP4476705B2
公开(公告)日：2010-06-09
申请号：JP2004172974
申请日：2004-06-10
申请人： 株式会社神戸製鋼所
摘要： PROBLEM TO BE SOLVED: To enable wide-band sound waves to be reduced at a low cost without using accoustic material. SOLUTION: A silencing mechanism of this invention has a branch conduit 12 which branches a fluid which includes sound waves into a main stream part and a branch stream part at the bent part 13 of a flow conduit 15 where the fluid passes, and which makes the main stream part which passes the downstream side of the bent part 13 flow together with the branch stream part by making the branch stream part flow into the inside from an inflow port 2 and also making the main stream part pass to the downstream side of the bent part 13 and by making the branch stream passed through the inside flow out from an outflow port 3, and silencing boards 4, 5 which are provided in the branch conduit 12 and have through holes 6, 7. COPYRIGHT: (C)2006,JPO&NCIPI
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公开(公告)号：JP5297348B2
公开(公告)日：2013-09-25
申请号：JP2009258680
申请日：2009-11-12
申请人： 株式会社神戸製鋼所 , 株式会社神鋼環境ソリューション
摘要： PROBLEM TO BE SOLVED: To provide a detector which can stably detect piping plugging irrespective of variations in the flow rate and mass of dumped garbage. SOLUTION: A piping plugging detector 1, which is provided on the dump piping 3 in a garbage incinerator 2, includes a plurality of vibration sensors 7A, 7B, 7C mounted on a pipe wall of this piping, and a determination part 8 which determines that plugging occurs in the piping when each of vibrations detected by a plurality of vibration sensors 7A, 7B, 7C is reduced in a different timing. Using a threshold L and a detection time T which varies with operation parameters, the vibration acceleration (vibration waveform) detected by the vibration sensors 7A, 7B, 7C is used by the determination part 8 as the number of times of impact vibrations n when the vibration acceleration above the threshold L is measured within the detection time T. The detection time T and/or threshold L are modified by a threshold modification part 24 depending on a state of the dumped garbage. COPYRIGHT: (C)2011,JPO&INPIT
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