LINEAR ACTUATOR AND OSCILLATION CONTROL DEVICE FOR RAILWAY VEHICLE
PROBLEM TO BE SOLVED: To provide a compact linear actuator with small back drive force which is unlikely to have solidification due to abrasion powder and an oscillation control device for a railway vehicle having the linear actuator.SOLUTION: A linear actuator comprises: a main body of a hollow str...
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| creator | GOTO OSAMU TAMAI MASASHI |
| description | PROBLEM TO BE SOLVED: To provide a compact linear actuator with small back drive force which is unlikely to have solidification due to abrasion powder and an oscillation control device for a railway vehicle having the linear actuator.SOLUTION: A linear actuator comprises: a main body of a hollow structure having an opening end and a closed end; a cylinder having an opening end on the side of the opening end and fixed at the closed end of the main body; a direct-operated rod whose one end extends from the opening end of the main body and which has a wearing in the outer periphery of the other end and is housed in the cylinder slidably in the axial direction; a hollow shaft supported in the main body rotatably. The hollow shaft has a permanent magnet in part of the outer peripheral surface. A coil part in part of the inner surface of the main body and the permanent magnet configure a hollow motor. A nut part fixed in the hollow shaft concentrically and a screw part in the outer peripheral surface of the direct-operated rod are engaged together to configure a rotary direct operation conversion mechanism. The actuator has a rotary oil seal part which seals between the hollow shaft and the main body on both sides of the nut part in the axial direction. |
| format | Patent |
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The hollow shaft has a permanent magnet in part of the outer peripheral surface. A coil part in part of the inner surface of the main body and the permanent magnet configure a hollow motor. A nut part fixed in the hollow shaft concentrically and a screw part in the outer peripheral surface of the direct-operated rod are engaged together to configure a rotary direct operation conversion mechanism. The actuator has a rotary oil seal part which seals between the hollow shaft and the main body on both sides of the nut part in the axial direction.</description><language>eng</language><subject>BLASTING ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; ENGINEERING ELEMENTS AND UNITS ; GEARING ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; GENERATION ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; PREVENTING DERAILING OF RAIL VEHICLES ; RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES ; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH ; RAILWAYS ; THERMAL INSULATION IN GENERAL ; TRANSPORTING ; WEAPONS ; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES</subject><creationdate>2012</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120126&DB=EPODOC&CC=JP&NR=2012019661A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120126&DB=EPODOC&CC=JP&NR=2012019661A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GOTO OSAMU</creatorcontrib><creatorcontrib>TAMAI MASASHI</creatorcontrib><title>LINEAR ACTUATOR AND OSCILLATION CONTROL DEVICE FOR RAILWAY VEHICLE</title><description>PROBLEM TO BE SOLVED: To provide a compact linear actuator with small back drive force which is unlikely to have solidification due to abrasion powder and an oscillation control device for a railway vehicle having the linear actuator.SOLUTION: A linear actuator comprises: a main body of a hollow structure having an opening end and a closed end; a cylinder having an opening end on the side of the opening end and fixed at the closed end of the main body; a direct-operated rod whose one end extends from the opening end of the main body and which has a wearing in the outer periphery of the other end and is housed in the cylinder slidably in the axial direction; a hollow shaft supported in the main body rotatably. The hollow shaft has a permanent magnet in part of the outer peripheral surface. A coil part in part of the inner surface of the main body and the permanent magnet configure a hollow motor. A nut part fixed in the hollow shaft concentrically and a screw part in the outer peripheral surface of the direct-operated rod are engaged together to configure a rotary direct operation conversion mechanism. The actuator has a rotary oil seal part which seals between the hollow shaft and the main body on both sides of the nut part in the axial direction.</description><subject>BLASTING</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>DYNAMO-ELECTRIC MACHINES</subject><subject>ELECTRICITY</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GEARING</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>GENERATION</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PERFORMING OPERATIONS</subject><subject>PREVENTING DERAILING OF RAIL VEHICLES</subject><subject>RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES</subject><subject>RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH</subject><subject>RAILWAYS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TRANSPORTING</subject><subject>WEAPONS</subject><subject>WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHDy8fRzdQxScHQOCXUM8Qcy_FwU_IOdPX18HEM8_f0UnP39QoL8fRRcXMM8nV0V3IBKghw9fcIdIxXCXD08nX1ceRhY0xJzilN5oTQ3g5Kba4izh25qQX58anFBYnJqXmpJvFeAkYEhEFmamRk6GhOlCABTNyuY</recordid><startdate>20120126</startdate><enddate>20120126</enddate><creator>GOTO OSAMU</creator><creator>TAMAI MASASHI</creator><scope>EVB</scope></search><sort><creationdate>20120126</creationdate><title>LINEAR ACTUATOR AND OSCILLATION CONTROL DEVICE FOR RAILWAY VEHICLE</title><author>GOTO OSAMU ; TAMAI MASASHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2012019661A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2012</creationdate><topic>BLASTING</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>DYNAMO-ELECTRIC MACHINES</topic><topic>ELECTRICITY</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GEARING</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>GENERATION</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PERFORMING OPERATIONS</topic><topic>PREVENTING DERAILING OF RAIL VEHICLES</topic><topic>RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES</topic><topic>RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH</topic><topic>RAILWAYS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><topic>WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES</topic><toplevel>online_resources</toplevel><creatorcontrib>GOTO OSAMU</creatorcontrib><creatorcontrib>TAMAI MASASHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GOTO OSAMU</au><au>TAMAI MASASHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LINEAR ACTUATOR AND OSCILLATION CONTROL DEVICE FOR RAILWAY VEHICLE</title><date>2012-01-26</date><risdate>2012</risdate><abstract>PROBLEM TO BE SOLVED: To provide a compact linear actuator with small back drive force which is unlikely to have solidification due to abrasion powder and an oscillation control device for a railway vehicle having the linear actuator.SOLUTION: A linear actuator comprises: a main body of a hollow structure having an opening end and a closed end; a cylinder having an opening end on the side of the opening end and fixed at the closed end of the main body; a direct-operated rod whose one end extends from the opening end of the main body and which has a wearing in the outer periphery of the other end and is housed in the cylinder slidably in the axial direction; a hollow shaft supported in the main body rotatably. The hollow shaft has a permanent magnet in part of the outer peripheral surface. A coil part in part of the inner surface of the main body and the permanent magnet configure a hollow motor. A nut part fixed in the hollow shaft concentrically and a screw part in the outer peripheral surface of the direct-operated rod are engaged together to configure a rotary direct operation conversion mechanism. The actuator has a rotary oil seal part which seals between the hollow shaft and the main body on both sides of the nut part in the axial direction.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PREVENTING DERAILING OF RAIL VEHICLES RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH RAILWAYS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES |
| title | LINEAR ACTUATOR AND OSCILLATION CONTROL DEVICE FOR RAILWAY VEHICLE |
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