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1. 发明专利

JP2003262100A VENTILATION DEVICE IN TUNNEL DURING CONSTRUCTION 审中-公开
公开(公告)号：JP2003262100A
公开(公告)日：2003-09-19
申请号：JP2002064777
申请日：2002-03-11
申请人： KUMAGAI GUMI CO LTD , RYUKI ENGINEERING KK
发明人： OKADA TAKASHI , HIROSE TOSHIBUMI , NISHIMURA AKIRA
IPC分类号： E21F1/08 , E21F1/14 , E21F5/20
摘要： PROBLEM TO BE SOLVED: To always clean air in all drifts leading from approximately 50 m rearward of a cutting face to a pit mouth regardless of advance of the cutting face. SOLUTION: Dust or the like generated at the cutting face 12 is blocked by an air curtain, and cleaned air always flows in the drift because dust or the like is collected with a dust collector 20. During tunnel blasting, damage is avoided by contracting a suction duct 24, during cutting face advance after the blasting, the suction dust 24 is extended, and an edge suction part 25 is made to near within 50 m of the cutting face. Ventilation working in the tunnel during construction can be continued without moving the dust collector 20 by repeating extension and contraction operation of the suction duct 24. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2002221000A METHOD FOR VENTILATION IN TUNNEL DURING EXECUTION OF WORK 失效
公开(公告)号：JP2002221000A
公开(公告)日：2002-08-09
申请号：JP2001017707
申请日：2001-01-26
申请人： KUMAGAI GUMI CO LTD , RYUKI ENGINEERING KK
发明人： OKADA TAKASHI , KISHITANI MAKOTO , NISHIMURA AKIRA
IPC分类号： E21F1/00 , F24F7/06 , F24F9/00
摘要： PROBLEM TO BE SOLVED: To clean air throughout an inside of an adit from a cutting face to an entrance. SOLUTION: Fresh air required for underground working is supplied to the vicinity of the cutting face 12 through an air duct 14. All dust or the like, which is generated in the cutting face 12, is caught by a large-capacity dust collector 20. Cleaned air is made to flow toward the entrance 11 through an air duct 24 inside the adit. An air blower 30 sends the cutting face 12 air corresponding to the total quantity of the fresh air supplied through the air duct 14 and a part of the air cleaned by the dust collector 20. Accordingly, the dust or the like generated in the cutting face 12 is diluted with the air corresponding to the total quantity of the fresh air and the part of the cleaned air. The rest of the air cleaned by the dust collector 20 is discharged from the entrance 11 through the adit.

3. 发明专利

JP2002188181A AIR PURIFIER IN CAB OF CONSTRUCTION EQUIPMENT 失效
公开(公告)号：JP2002188181A
公开(公告)日：2002-07-05
申请号：JP2000389278
申请日：2000-12-21
申请人： OHBAYASHI CORP , RYUKI ENGINEERING KK
发明人： OGASAWARA MITSUMASA , MIURA MASAHIKO , ORIGASA KAZUO , NISHIMURA SATOSHI
IPC分类号： E02F9/16 , B01D46/00 , B60H3/06
摘要： PROBLEM TO BE SOLVED: To dispense with wearing of a dust prevention mask and create comfortable work environment by purifying the air in a driver's cab. SOLUTION: An air purifier in the cab of construction equipment is provided with a casing 12 arranged outside the cab 2 in the construction equipment and forming an outside air take-in port and an air supply port 28 communicating with outside air and the inside of the driver's cab 2, filters 14, 16 for removing dust arranged on an outside air take-in side inside the casing 12, and an air supply fan 18 arranged on rear surfaces of the filters 14, 16 by directing an air take-in port 18a and a blow-out port 18 toward filter sides and the air supply port 28 on a driver's cab side, respectively.

4. 发明专利

JP2001165495A VENTILATION AIR DUCT UNIT 失效
公开(公告)号：JP2001165495A
公开(公告)日：2001-06-22
申请号：JP34974599
申请日：1999-12-09
申请人： RYUKI ENGINEERING KK
发明人： NISHIMURA AKIRA
IPC分类号： E21F1/00 , F24F13/00 , F24F13/02 , F24F13/20 , F24F13/22 , F24F13/24
摘要： PROBLEM TO BE SOLVED: To provide an easy-to-move air duct unit in which the air duct body can be drawn out and contained while being folded uniformly and automatically in the longitudinal direction. SOLUTION: The ventilation air duct unit comprises a tubular air duct body 1 made of a sheet material, a support 2 having open opposite ends for containing the air duct body on the outer circumference thereof such that it can be folded and fed out, means 3 for coupling with a fan provided at one end of the support, and means 5 for feeding out the air duct body provided at the other end of the support. The feed out means comprises a mechanism for clamping the air duct body at a plurality of positions in the circumferential direction, feeding out the air duct body uniformly outward at the time of use and pulling in the air duct body to the outer circumference of the support at the time of containing it. The air duct unit has a traveling means 8.

5. 发明专利

JP2001073689A EXCAVATING CONSTRUCTION METHOD AND DUST REDUCING DEVICE USED FOR THE METHOD 失效
公开(公告)号：JP2001073689A
公开(公告)日：2001-03-21
申请号：JP25272999
申请日：1999-09-07
申请人： RYUKI ENGINEERING KK
发明人： NISHIMURA AKIRA
IPC分类号： E21D9/10 , E21B21/00 , E21B21/14
摘要： PROBLEM TO BE SOLVED: To improve a working environment and reduce a cost by suppressing the occurrence of dust at excavating positions and in transport process, and prevent an adhesion of soil so as to prevent an eccentric wear of a cutter by smoothly taking in fractures and increasing a cooling effect. SOLUTION: An excavation is performed while air bubbles are supplied to the excavating members such as a drill and a cutter of an excavating device and/or around these excavating members. The air bubbles are generated finely, for example, like shaving cream by blowing compressed air into a solution containing surface active agent. A dust reducing device comprises mixing means 2 mixing surface active agent with water, air bubble generating means 3 producing air bubbles by feeding mixed solution and compressed air by the mixing means 2, and a feed path 9 feeding the air bubbles generated by the air bubble generating means 3 to and/or around the excavating members of the excavating device.

6. 发明专利

JP2009125640A GARBAGE DRIER 审中-公开
公开(公告)号：JP2009125640A
公开(公告)日：2009-06-11
申请号：JP2007301599
申请日：2007-11-21
申请人： RYUKI ENGINEERING KK
发明人： NISHIMURA AKIRA
IPC分类号： B09B3/00 , B01J23/42 , B01J35/04 , F26B9/06 , F26B23/02
摘要： PROBLEM TO BE SOLVED: To provide a garbage drier having excellent thermal efficiency and running costs. SOLUTION: The garbage drier 1 comprises a drying chamber 2 capable of storing garbage, a ribbon screw 7 stirring the garbage in the drying chamber through rotation, a gas burner 4 heating the gas in the drying chamber 2 and an air blowing section consisting of a hot air blowing fan 17 and an air blowing passage 18. COPYRIGHT: (C)2009,JPO&INPIT

7. 发明专利

JP2003239699A VENTILATING DEVICE IN TUNNEL 审中-公开
公开(公告)号：JP2003239699A
公开(公告)日：2003-08-27
申请号：JP2002039229
申请日：2002-02-15
申请人： KAJIMA CORP , RYUKI ENGINEERING KK , NIPPON KOKI KK
发明人： SATO MASAAKI , YOKOTA YORIHAYA , NISHIMURA AKIRA , SAKAGUCHI FUKUJU
IPC分类号： E21F5/20 , E21F1/14 , F24F7/06
摘要： PROBLEM TO BE SOLVED: To provide a ventilating device in a tunnel, by which an adverse effect by low visibility and a danger such as pneumoconiosis are reduced by improving the removal efficiency of dust generated in case of the excavation of a facing for the tunnel. SOLUTION: The ventilating device 1 is installed to an excavator 10. The ventilating device 1 has upper injection equipment 2 secured together with cutting drills 18 to booms 15 and lower injection equipment 3 mounted on the side of a travelling section 13. The upper injection equipment 2 removes dust at the place of a cutting where dust is generated by the cutting by the cutting drills 18. Then, the lower injection equipment 3 removes dust generated by cutting muck dropping from the facing in the tunnel by the cutting by the cutting drills 18. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2003138602A DRIVING CAB CLEANING DEVICE FOR CONSTRUCTION EQUIPMENT 审中-公开
公开(公告)号：JP2003138602A
公开(公告)日：2003-05-14
申请号：JP2001333162
申请日：2001-10-30
申请人： OHBAYASHI CORP , RYUKI ENGINEERING KK
发明人： OGASAWARA MITSUMASA , HAMADA TAKASHI , NISHIMURA SATOSHI
IPC分类号： E02F9/16 , A61L9/01 , A61L9/16 , B01D46/00 , B01D53/04
摘要： PROBLEM TO BE SOLVED: To provide a driving cab cleaning device for construction equipment, which dispenses with wearing of a gas mask by the operator and obtains a comfortable working environment by implementing air cleaning in a driving cab of the construction equipment. SOLUTION: The driving cab cleaning device is comprised of a casing, a chemical adsorbent, and an air supply fan 18. The casing is arranged outside the driving cab 2 of a shovel car, and has an air supply port 49 formed therein, which communicates with an outside air intake port 20 and the interior of the driving cab 2. The chemical adsorbent 15 is arranged inside the casing as an air cleaning means for removing gas such as noxious gas adversely affecting human bodies. The air supply fan 18 supplies the gas cleaned by the air cleaning means via the air supply port 49 to the driving cab 2.

9. 发明专利

JP2001164881A FORCE FEED METHOD AND FORCE FEED DEVICE FOR SEDIMENT 失效
公开(公告)号：JP2001164881A
公开(公告)日：2001-06-19
申请号：JP34974499
申请日：1999-12-09
申请人： RYUKI ENGINEERING KK
发明人： NISHIMURA AKIRA
IPC分类号： E21D9/13 , E21D9/12
摘要： PROBLEM TO BE SOLVED: To smoothly force-feed sediment, particularly the sediment having a somewhat high moisture content, hardly cause blocking in the middle of a transportation pipe, and relatively facilitate the formation of a plug. SOLUTION: The sediment fed into the transportation pipe 8 is force-fed by compressed air together with the bubbles generated by blowing air into an aqueous solution including a surfactant. The bubbles form a smooth surface on the inner wall of the transportation pipe 8 and contribute to the reasonable force feed of sediment by a bearing action. This force feed device is basically provided with the transportation pipe 8, a sediment feeding means 1 to the transportation pipe 8, a blower 4 feeding the compressed air to the transportation pipe 8, a foaming device 5, and a bubble feeding means to the transportation pipe 8. A plurality of switch valves 13a, 13b, etc., are arranged at intervals in the longitudinal direction on the transportation pipe 8. The switch valves 13a, 13b, etc., are opened in sequence at time differences by a control means 16, and the compressed air is fed when they are opened.

10. 发明专利

JP2000184787A VARIABLE SPEED CAPACITY CONTROL DEVICE FOR PLURALITY OF MOTORS 失效
公开(公告)号：JP2000184787A
公开(公告)日：2000-06-30
申请号：JP37604098
申请日：1998-12-18
申请人： RYUKI ENGINEERING KK
发明人： NISHIMURA AKIRA
IPC分类号： H02P5/00 , H02P7/67
摘要： PROBLEM TO BE SOLVED: To continuously control capacity by switching from an inverter operation circuit to a commercial operation circuit when the load capacity of a motor that is directly connected to a commercial power supply reaches the rated capacity of an inverter and operating remaining motors with a signal from a program controller to each contactor. SOLUTION: Variable speed capacity control by an inverter INV and operation by a commercial operation circuit 8 are combined, and the control of a plurality of motors M1 and M2 by one inverter unit is instructed by a programmable (sequence) controller PLC for automatic control. When a load capacity reaches the rated capacity of the inverter, the operation circuit of the motor M1 is switched from an inverter operation circuit 6 to the commercial operation circuit 8. Operation is allowed to continue without any shock and at the same time an inverter operation circuit 7 switches connection to another motor M2 for continuously controlling capacity. When the concentration of dust in the tunnel of a dust sensor DS is low, a suction motor M1 is automatically operated. On the other hand, when the concentration is high, the suction motor M1 and a discharge motor M2 are automatically operated at low to high speeds.

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