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1. 发明专利

JPS5628804A CHISEL FOR BREAKER WITH SILENCER 失效
公开(公告)号：JPS5628804A
公开(公告)日：1981-03-23
申请号：JP10516179
申请日：1979-08-17
申请人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
发明人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
IPC分类号： B21D28/34 , B21D37/00 , B27G17/02 , B30B15/00

2. 发明专利

JPS5625519A SOUNDPROOFING CAP 失效
公开(公告)号：JPS5625519A
公开(公告)日：1981-03-11
申请号：JP10039579
申请日：1979-08-07
申请人： SAKURADA KAZUHIDE , WAKAO TAKESUKE
发明人： SAKURADA KAZUHIDE , WAKAO TAKESUKE
IPC分类号： E02D13/10
摘要： PURPOSE:To prevent the generation of noise during driving of a sheet pile, etc., by covering a cap with a soundproof cushioning material. CONSTITUTION:The surface of a cap 1 to be put on a head of a sheet pile orpipepile that is to be driven is covered with a soundproof cushioning material 2, and the head 3 is provided with a recess in which a rigid cushioning material 2 of rubber, nylon, Teflon or the like is provided. Then, the cap 1 is put on a member 4 to be driven, and when an impact is given to the head 3 of the cap 1, the generated shock wave and vibration noise are subjected to interference, phase inversion, absorption and shielding by the soundproof cushioning material and the rigid cushioning material 2, and are eliminated, and due to the rigid cushioning material 2 in the recess 3, the bounce of the hammer is prevented, so that an exvellent impact effect is available.

3. 发明专利

JPS55124000A CARTRIDGE 失效
公开(公告)号：JPS55124000A
公开(公告)日：1980-09-24
申请号：JP3127179
申请日：1979-03-17
申请人： SAKURADA KAZUHIDE
发明人： SAKURADA KAZUHIDE
IPC分类号： F42B5/307 , F42B5/26 , F42B5/313

4. 发明专利

JPS56108412A SOUND INSULATING METHOD OF SHEET PILE AND PIPE PILE 失效
公开(公告)号：JPS56108412A
公开(公告)日：1981-08-28
申请号：JP3293479
申请日：1979-03-19
申请人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
发明人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
IPC分类号： E02D5/04 , E02D13/00
摘要： PURPOSE:To reduce noise during the driving work by absorbing vibration, resonance or the like generated by an impace when a sheet pile or the like is driven into the ground with a sound insulating material applied on an air-exposed part thereof. CONSTITUTION:A sheet pile 1 or a pipe pile 2 is covered on the entire surface exposed to air with a sound shielding material (also serving for insulating sound). For the sound shielding material 3, the one large in the sound shielding effect and rich in airtight water proofing with a powerful adhesion force is used. It include rubber, asphalt, tar and plastics. This can reduce noise generated when the piles 1 and 2 are driven.

5. 发明专利

JPS5631514A SOUNDPROOFED NAIL 失效
公开(公告)号：JPS5631514A
公开(公告)日：1981-03-30
申请号：JP10516079
申请日：1979-08-17
申请人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
发明人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
IPC分类号： F16B15/00

6. 发明专利

JPS571890A PIPE JOINT WITH LEAKAGEPROOFING DEVICE 失效
公开(公告)号：JPS571890A
公开(公告)日：1982-01-07
申请号：JP7350780
申请日：1980-05-31
申请人： SAKURADA YASUYUKI , SAKURADA KAZUHIDE
发明人： SAKURADA YASUYUKI , SAKURADA KAZUHIDE
IPC分类号： F16L15/04

7. 发明专利

JPS571897A PIPE COATED BY HEAT INSULATION MATERIAL AND EXFOLIATIONPROOF DEVICE 失效
公开(公告)号：JPS571897A
公开(公告)日：1982-01-07
申请号：JP7505680
申请日：1980-06-04
申请人： SAKURADA YASUYUKI , SAKURADA KAZUHIDE
发明人： SAKURADA YASUYUKI , SAKURADA KAZUHIDE
IPC分类号： F16L59/14

8. 发明专利

JPS5649898A SOUND DAMPING APPARATUS FOR DROPPING FLUID 失效
公开(公告)号：JPS5649898A
公开(公告)日：1981-05-06
申请号：JP11066379
申请日：1979-08-30
申请人： SAKURADA KAZUHIDE
发明人： SAKURADA KAZUHIDE
IPC分类号： F28C1/10 , F28C1/00 , F28F25/00
摘要： PURPOSE:To prevent a noise due to dropping of liquid onto a liquid surface, by providing a liquid receiving plate at a space above a liquid receiving tank of a cooling tower, etc. and providing a slanted liquid leading plate around the liquid receiving tank. CONSTITUTION:The liquid receiving plate 7 is provided above the liquid receiving tank 4 that receives water which has been dropped onto a filling 3 from a water spray pipe 2 within the cooling tower 1 to be subjected to heat exchange. The outer circumference of the liquid receiving plate 7 is formed into a slant 9 including a liquid receiving table 11 which is in touch with a mouth edge 8 of the liquid receiving tank 4, radial grooves 12 are formed on the upper surfaces of the liquid receiving plate 7 and the liquid receiving table 11, and liquid passing ports 13 are formed in the lower end of the liquid receiving table 11. From the inner circumference of the mouth edge 8 of the liquid receiving tank 4 to the liquid surface extends the slant liquid leading plate 14. Further sound absorbing materials 15, 17 are bonded on the liquid receiving plate 7, the liquid receiving table 11, and the liquid leading plate 14, and a sound absorbing material 18 is floated on the liquid surface. Thus, as the liquid cooled in the filling 1 is received on the sound absorbing material 15 of the liquid receiving table 11 or the liquid receiving plate 7, the noise can be damped.

9. 发明专利

JPS5628931A PILE DRIVER WITH SOUND ABSORBER 失效
公开(公告)号：JPS5628931A
公开(公告)日：1981-03-23
申请号：JP10516279
申请日：1979-08-17
申请人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
发明人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
IPC分类号： E02D7/06
摘要： PURPOSE:To reduce the vibration and noises caused by pile driving by providing the sound-absorbing member on the main body of the pile driver. CONSTITUTION:On suitable places of the main body of the pile driver 1, such as an upper piston 2, an upper cylinder 3, a lower cylinder 4, a lower piston 5 and other parts of the pile driver 1, a concavity 8 and grooves 9 for fitting of the sound- absorbing member 7 are cut. To these concavity 8 and grooves 9 the sound-absorbing member 7 formed of rubber, synthetic resin or the like is fitted in a circular form. By this, the amplitude of vibration generated by pile driving in operation is supressed, while the vibration shock waves generated by driving are eliminated through absorption and exclusion thereof.

10. 发明专利

JPS55125308A MUFFLER 失效
公开(公告)号：JPS55125308A
公开(公告)日：1980-09-27
申请号：JP3127079
申请日：1979-03-17
申请人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
发明人： SAKURADA KAZUHIDE , SAKURADA YASUYUKI
IPC分类号： F01N1/02 , F01N1/08
摘要： PURPOSE:To arrest noises effectively by lowering the temperature of the fluid containing noises suddenly and giving abnormality to sound waves of noises contained in the fluid. CONSTITUTION:Exhaust gas exhausted from an engine is at first introduced into the inmost pipe 2 fixed on its one end to a lid plate 6 in a noise-arresting chamber 7 through an entrance pipe 1. Subsequently, the gas meanders through an intermediate pipe 3 and the outmost pipe 4 fixed on theri one ends to a lid plate 5, as being lowered in the temperature properly. Then, the exhaust gas is conducted through an air-hole 8 into an expansion chamber 9, where it is further lowered in the temperature and introduced into a pipe 14 through an entrance 10. After it meanders through pipes 14-11 provided with holes 19-22 alternately on their top and tail, it is conducted to the second expansion chamber 18 through a small hole, and therefrom meanders through an exit side noise-arresting chamber 23 constructed similarly to the entrance side one into an exhaust pipe 24 to be exhausted to the open air.

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