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1. 发明专利

JP2001327930A HIGH SPEED SORTING APPARATUS 失效
公开(公告)号：JP2001327930A
公开(公告)日：2001-11-27
申请号：JP2000150920
申请日：2000-05-23
申请人： NIPPON KOKAN KK , NKK PLANT ENG CORP
发明人： MIYAMOTO HIDEYUKI , TAKASU NOBUO , AOKI AKIO
IPC分类号： B07C5/36 , B29B17/00
摘要： PROBLEM TO BE SOLVED: To exactly sort light, flat articles such as waste plastics according to their shapes and properties. SOLUTION: When compressed air is ejected from an upper nozzle 103A and a lower nozzle 103a, the air jets, which are received by the waste plastics 101 conveyed on a conveyer 102, are brought into a complex state of air currents comprising an air current which is high in speed and narrow in area and an air current which is low in speed and wide in area by the difference in setting positions of the upper nozzle 103A and the lower nozzle 103a. Compressed air ejected from the lower nozzle 103a remote from a conveyance guide 114 is being diffused with its flow velocity being decreased so that the waste plastics 101 are not attracted to the conveyer 102. The waste plastics 101, which are lifted by receiving the diffused air current ejected from the lower nozzle 103a, are pushed by the air current ejected from the upper nozzle 103A and sent surely to a recovery chute 105A to be recovered.

2. 发明专利

JP2000308855A SORTING DEVICE FOR WASTE PLASTIC 失效
公开(公告)号：JP2000308855A
公开(公告)日：2000-11-07
申请号：JP35351999
申请日：1999-12-13
申请人： NIPPON KOKAN KK , NKK PLANT ENG CORP
发明人： AKIYASU YASUSHI , TAKASU NOBUO , AOKI AKIO
IPC分类号： B09B5/00 , B07C5/02 , B29B17/00 , B65G47/28 , G01J3/46
摘要： PROBLEM TO BE SOLVED: To efficiently align and sort waste plastic with simple structure by aligning fed waste plastic in a row in the longitudinal direction thereof, and sorting and removing the waste plastic that has not been aligned, and also sorting the aligned waste plastic. SOLUTION: After waste plastic fed into a hopper 1 is first drawn out by a feeding conveyor 2 through a rotary smoother 3, it is fed to an aligning means A through a drawing conveyor 4 and is aligned in a row by a transfer conveyor and a traveling guide thereof in the longitudinal direction. Next, the waste plastic is transferred to a second aligning means B by a carrying conveyor 13, and only that in an unaligned state is removed by a removing control means 17 through a removing means 16 according to the detection results of an unaligned matter sensor 15. Successively, the waste plastic is sorted into plural kinds 23 according to the detection results of a color identifying means 19 and a material identifying means 20 by a sorting control means 21 through a sorting means 22.

3. 发明专利

JP2002021477A ELECTRIC WIRE PROTECTING STRUCTURE FOR DRILL PIPE FOR USE IN NON-CUT PIPE LAYING METHOD 失效
公开(公告)号：JP2002021477A
公开(公告)日：2002-01-23
申请号：JP2000209826
申请日：2000-07-11
申请人： NIPPON KOKAN KK
发明人： ARAKI OSAMU , TAKASU NOBUO , NAGAMUNE AKIO , TEZUKA KOICHI
IPC分类号： E21D9/06 , F16L1/024
摘要： PROBLEM TO BE SOLVED: To provide an electric wire protecting structure for a drill pipe for use in a non-cut pipe laying method, which allows an electric wire in the drill pipe to be positioned at the center of the drill pipe at any portion thereof, and dispenses with a fear of being flushed by muddy water. SOLUTION: The electric wire protecting structure is arranged in the drill pipe which is for use in excavation propulsion in the pipe laying method for laying a non-cut pipe in the ground. The electric wire protecting structure servers to protect the electric wire for transmitting information between equipment set at the tip of the drill pipe and facilities on the ground and supplying electric power to the equipment. According to the electric wire protecting structure, an electric wire protective pipe 5 having almost the same length as that of the drill pipe 1 is rigidly arranged in the drill pipe 1 such that its axial line is aligned with an axial lien of the drill pipe 1, and an electric wire 4 is arranged in the electric wire protective pipe 5. Further, both the electric wire protective pipes 5 of the adjacent drill pipes 1 are connected or approached to each other after connection of the electric wires 4.

4. 发明专利

JPH10231691A EQUIPMENT FOR PREVENTING BLOCKING OF EXCAVATED SLUDGE 失效
公开(公告)号：JPH10231691A
公开(公告)日：1998-09-02
申请号：JP3407597
申请日：1997-02-18
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： FUJISAWA TOMOJI , KODA KAZUO , TAKASU NOBUO , ICHIOKA YUJI
IPC分类号： E21D9/12
摘要： PROBLEM TO BE SOLVED: To prevent a transport pipe from getting blocked by excavated sludge. SOLUTION: Multiple values 10 are placed at an optional at an optional interval in a transport pipe 8. The valves 10 are closed when the suction force of the transport pipe 8 is higher than a prescribed value during normal excavated sludge delivery and opened when suction force is lower than the prescribed value because vacuum pressure is lower due to the blocked transport pipe 8. When the valves 10 are opened, air 11 is supplied to the transport pipe 8 and a sludge plug 12 of a prescribed form is formed, catching the air 11a in the transport pipe 8. And of those multiple valves 10, only those near parts where suction force has decreased are opened.

5. 发明专利

JPH02167932A CONTROL ON SWING ACTION OF DREDGER 失效
公开(公告)号：JPH02167932A
公开(公告)日：1990-06-28
申请号：JP32113988
申请日：1988-12-20
申请人： UNYUSHO DAIYON KOWAN KENSETSU , NIPPON KOKAN KK
发明人： MIURA HIDEO , MORIGUCHI TERUAKI , KONO SHIGERU , HANADA TAKAO , KUROIWA MASAHIRO , OKAWA TOSHIO , MIZUNO HIROSHI , ITO MASANORI , UTSUNOMIYA TAKESHI , TAKASU NOBUO , MOTAI TAKATOSHI
IPC分类号： E02F3/90
摘要： PURPOSE:To raise the efficiency of operation by a method in which during the swing action of a dredger, the tension of head line or stern line is detected and a winch on the stern line or head line is operated in such a way as to control the detected tension within a given range. CONSTITUTION:The tension of a head line 6A2 is detected by a tension sensor 11 and sent to a judger 12 for the tension of head line, which judges whether the tension is within a given range or not and sends the signal of judged results to a stern line winch control signal generator 13. When the tension is larger than upper limit value, the signal of stern line send-out command is supplied to the stern line winch 7 by the generator 13 to send out the stern line 6B2. When the tension is smaller than lower limit value, the signal of stern line wind-up command is supplied to the winch 7 to wind up the stern line 6B2.

6. 发明专利

JP2002225137A METHOD FOR JOINING THERMOPLASTIC RESIN PIPE 失效
公开(公告)号：JP2002225137A
公开(公告)日：2002-08-14
申请号：JP2001029181
申请日：2001-02-06
申请人： NIPPON KOKAN KK
发明人： KITAO KOICHI , TAKASU NOBUO , ISHIZUKA HITOSHI , MORIMOTO TADASHI , UNISHI HIROYUKI , FURUTA AKIHIKO , TSURUTA HIDEKAZU
IPC分类号： F16L47/02 , B29C65/06
摘要： PROBLEM TO BE SOLVED: To provide a method for joining a thermoplastic resin pipe by which a resin pipe with a high RCP resistance can be manufactured at a low cost, and also to provide a method for joining a thermoplastic resin pipe by which it is possible to ensure the performance of a highly reliable joining process even when the resin pipes of significantly different materials are joined together. SOLUTION: This method for joining the thermoplastic resin pipes comprises the steps to interpose a tubular joint between two pieces of thermoplastic resin pipe to be joined together, then butt both edge faces of the tubular joint into the edge faces of the two thermoplastic resin pipes to be joined together, and to fusion-bond and join the tubular joint and the two thermoplastic resin pipes to be joined together by the frictional heat generated through rotating the tubular joint. In this method, the tubular joint is formed of a different material from the two thermoplastic resin pipes to be joined together. Further, the tubular joint is preferably to be formed of a material showing higher resistance to rapid cracks development than two thermoplastic resin pipes to be joined together, or is preferably to be formed of a moderate quality of material to the material of the latter.

7. 发明专利

JP2002021474A RESIN PIPE LAYING METHOD 失效
公开(公告)号：JP2002021474A
公开(公告)日：2002-01-23
申请号：JP2000206808
申请日：2000-07-07
申请人： NIPPON KOKAN KK
发明人： TAKASU NOBUO , ISHIZUKA HITOSHI
IPC分类号： E21D9/06 , B29C63/34 , F16L1/024
摘要： PROBLEM TO BE SOLVED: To provide a resin pipe laying method which shortens a period of time required for laying a pipe on a non-cut basis, shortens a construction occupying band, and raises safety level. SOLUTION: The resin pipe laying method for laying the resin pipe on the non-cut basis, is comprised of the following steps. In the first step, cores of the first resin pipe to be drawn and the second resin pipe to be newly connected to the first pipe are matched to each other. In the second step, the first and second resin pipes are held. In the next step, the first and second resin pipes are connected together by using a connector of a press-connecting type. In the following step, the connector is moved while maintaining connection between the first and second resin pipes in synchronization with a pullback speed.

8. 发明专利

JP2001318052A MATERIAL DISCRIMINATION DEVICE FOR WASTE PLASTIC 失效
公开(公告)号：JP2001318052A
公开(公告)日：2001-11-16
申请号：JP2000136695
申请日：2000-05-10
申请人： NIPPON KOKAN KK
发明人： MIYAMOTO HIDEYUKI , TAKASU NOBUO
IPC分类号： G01N21/15 , B29B17/00 , G01N21/35 , G01N21/3563 , G01N21/359
摘要： PROBLEM TO BE SOLVED: To provide a material discrimination device for waste plastic capable of minimizing reduction of a reflectance of a reflection near-infrared spectrometer, and maintaining material discrimination precision high. SOLUTION: This material discrimination device for the waste plastic is equipped with a light source for radiating light containing a near infrared ray, and a facing reflector across the waste plastic for discriminating the material thereof, arranged roughly perpendicularly with the optical axis of the light source, a spectrometer for executing spectrometry of the near infrared ray radiated from the light source and reflected by the waste plastic or the reflector, and an operation device for determining the material of the waste plastic based on the result of the spectrometry by the spectrometer. The device has a formation having irregularities formed on the reflecting surface of the reflector.

9. 发明专利

JP2001260229A METHOD AND APPARATUS FOR BONDING THERMOPLASTIC RESIN PIPES BY PRESSURE WELDING 失效
公开(公告)号：JP2001260229A
公开(公告)日：2001-09-25
申请号：JP2000070390
申请日：2000-03-14
申请人： NIPPON KOKAN KK
发明人： TAKASU NOBUO , ISHIZUKA HITOSHI , UNISHI HIROYUKI
IPC分类号： F16L47/02 , B29C65/00 , B29C65/06 , B29C65/48
摘要： PROBLEM TO BE SOLVED: To solve not only the point at issue such that pressure welding bonded surfaces become two places in a conventional pressure welding system wherein a tubular joint is arranged between the mutually opposed end surfaces of resin pipes to be rotated and the end surfaces of the resin pipes are mutually welded and bonded by the frictional heat generated at this time but also the point at issue such that the treatment of pressure welding burr is troublesome. SOLUTION: A flat plate made of a thermoplastic resin is arranged between the mutually opposed end surfaces of thermoplastic resin pipes and rotated to mutually weld and bond the resin pipes by the frictional heat generated at this time. The molten flat plate is extruded from the pressure welding surface of the resin pipes at this time and the pressure welding bonded surface is restricted to one place. The flat plate is moved in the axial direction of the resin pipes at the time of pressure welding to form pressure welding burr good in shape.

10. 发明专利

JP2001254888A FLAT PLATE FOR JOINING THERMOPLASTIC RESIN PIPE IN PRESSURE CONTACT 失效
公开(公告)号：JP2001254888A
公开(公告)日：2001-09-21
申请号：JP2000070391
申请日：2000-03-14
申请人： NIPPON KOKAN KK
发明人： TAKASU NOBUO , ISHIZUKA HITOSHI , UNISHI HIROYUKI
IPC分类号： F16L47/02 , B29C65/00 , B29C65/06
摘要： PROBLEM TO BE SOLVED: To solve the problems that two pressure contact joining faces are required, the treatment of pressure contact burr is complicated, and the treatment of a joint for pressure contact after pressure contact is completed is troublesome in a conventional pressure contact system in which end faces of resin pipes oppose mutually, a tubular joint is arranged therebetween and is rotated, and they are mutually fused and joined due to friction heat generated at that time. SOLUTION: The end faces of thermoplastic resin pipes oppose mutually, and a flat plate made of thermoplastic resin is arranged therebetween and is rotated to fuse and join them mutually due to friction heat generated at that time. At this time, the fused flat plate is pushed out of a pressure contact face of the resin pipes to limit a pressure contact joining face to one section. Moreover, the flat plate is moved in the axial direction of the resin pipes when they are brought into pressure contact to form pressure contact burr having a satisfactory shape. Furthermore, the flat plate is formed by abutting a plurality of members to facilitate its removal from the resin pipes after pressure contact is completed.

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