PIPE JACKING APPARATUS
PROBLEM TO BE SOLVED: To provide a pipe jacking apparatus which can shorten time for a pipe jacking operation, and which can be simplified and miniaturized. SOLUTION: In this pipe jacking apparatus 24 for use in a pipe jacking method, a plurality of cylinder devices 51a, 51b, 52a and 52b divided int...
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| creator | TERATANI HIROSHI FUTAHOSHI NORICHIKA ASANO MICHIYA |
| description | PROBLEM TO BE SOLVED: To provide a pipe jacking apparatus which can shorten time for a pipe jacking operation, and which can be simplified and miniaturized. SOLUTION: In this pipe jacking apparatus 24 for use in a pipe jacking method, a plurality of cylinder devices 51a, 51b, 52a and 52b divided into two groups are provided on a movable carriage 29 for pushing a pipe in the state of supporting it; a back end of each of the cylinder devices has a locking portion 56; and a rail device 26 is provided with a plurality of portions 37a, 37b, 38a and 38b to be locked. The expansion and contraction of the piston rods 55 of the cylinder devices 51a and 51b of a first group and those of the piston rods 55 of the cylinder devices 52a and 52b of a second group are alternately repeated. Thus, the movable carrier advances to push the pipe, while the locking portion of the expanding piston rod is engaged with the portion to be locked and while the locking portion of the contracting piston rod is disengaged from the locking portion and goes over the front adjoining locking portion forward from the back. COPYRIGHT: (C)2009,JPO&INPIT |
| format | Patent |
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SOLUTION: In this pipe jacking apparatus 24 for use in a pipe jacking method, a plurality of cylinder devices 51a, 51b, 52a and 52b divided into two groups are provided on a movable carriage 29 for pushing a pipe in the state of supporting it; a back end of each of the cylinder devices has a locking portion 56; and a rail device 26 is provided with a plurality of portions 37a, 37b, 38a and 38b to be locked. The expansion and contraction of the piston rods 55 of the cylinder devices 51a and 51b of a first group and those of the piston rods 55 of the cylinder devices 52a and 52b of a second group are alternately repeated. Thus, the movable carrier advances to push the pipe, while the locking portion of the expanding piston rod is engaged with the portion to be locked and while the locking portion of the contracting piston rod is disengaged from the locking portion and goes over the front adjoining locking portion forward from the back. 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SOLUTION: In this pipe jacking apparatus 24 for use in a pipe jacking method, a plurality of cylinder devices 51a, 51b, 52a and 52b divided into two groups are provided on a movable carriage 29 for pushing a pipe in the state of supporting it; a back end of each of the cylinder devices has a locking portion 56; and a rail device 26 is provided with a plurality of portions 37a, 37b, 38a and 38b to be locked. The expansion and contraction of the piston rods 55 of the cylinder devices 51a and 51b of a first group and those of the piston rods 55 of the cylinder devices 52a and 52b of a second group are alternately repeated. Thus, the movable carrier advances to push the pipe, while the locking portion of the expanding piston rod is engaged with the portion to be locked and while the locking portion of the contracting piston rod is disengaged from the locking portion and goes over the front adjoining locking portion forward from the back. COPYRIGHT: (C)2009,JPO&INPIT</description><subject>BLASTING</subject><subject>EARTH DRILLING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>GALLERIES</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>JOINTS OR FITTINGS FOR PIPES</subject><subject>LARGE UNDERGROUND CHAMBERS</subject><subject>LIGHTING</subject><subject>MEANS FOR THERMAL INSULATION IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>MINING</subject><subject>PIPES</subject><subject>SHAFTS</subject><subject>SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TUNNELS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAL8AxwVfBydPb29HNXcAwIcAxyDAkN5mFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgYGloYmJsamho7GRCkCAOnkH4E</recordid><startdate>20090702</startdate><enddate>20090702</enddate><creator>TERATANI HIROSHI</creator><creator>FUTAHOSHI NORICHIKA</creator><creator>ASANO MICHIYA</creator><scope>EVB</scope></search><sort><creationdate>20090702</creationdate><title>PIPE JACKING APPARATUS</title><author>TERATANI HIROSHI ; FUTAHOSHI NORICHIKA ; ASANO MICHIYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2009144351A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2009</creationdate><topic>BLASTING</topic><topic>EARTH DRILLING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>GALLERIES</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>JOINTS OR FITTINGS FOR PIPES</topic><topic>LARGE UNDERGROUND CHAMBERS</topic><topic>LIGHTING</topic><topic>MEANS FOR THERMAL INSULATION IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>MINING</topic><topic>PIPES</topic><topic>SHAFTS</topic><topic>SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TUNNELS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>TERATANI HIROSHI</creatorcontrib><creatorcontrib>FUTAHOSHI NORICHIKA</creatorcontrib><creatorcontrib>ASANO MICHIYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TERATANI HIROSHI</au><au>FUTAHOSHI NORICHIKA</au><au>ASANO MICHIYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PIPE JACKING APPARATUS</title><date>2009-07-02</date><risdate>2009</risdate><abstract>PROBLEM TO BE SOLVED: To provide a pipe jacking apparatus which can shorten time for a pipe jacking operation, and which can be simplified and miniaturized. SOLUTION: In this pipe jacking apparatus 24 for use in a pipe jacking method, a plurality of cylinder devices 51a, 51b, 52a and 52b divided into two groups are provided on a movable carriage 29 for pushing a pipe in the state of supporting it; a back end of each of the cylinder devices has a locking portion 56; and a rail device 26 is provided with a plurality of portions 37a, 37b, 38a and 38b to be locked. The expansion and contraction of the piston rods 55 of the cylinder devices 51a and 51b of a first group and those of the piston rods 55 of the cylinder devices 52a and 52b of a second group are alternately repeated. Thus, the movable carrier advances to push the pipe, while the locking portion of the expanding piston rod is engaged with the portion to be locked and while the locking portion of the contracting piston rod is disengaged from the locking portion and goes over the front adjoining locking portion forward from the back. COPYRIGHT: (C)2009,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_JP2009144351A |
| source | esp@cenet |
| subjects | BLASTING EARTH DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GALLERIES GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LARGE UNDERGROUND CHAMBERS LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MINING PIPES SHAFTS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TUNNELS WEAPONS |
| title | PIPE JACKING APPARATUS |
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