REDUCTION GEAR, AND ELECTRIC POWER STEERING DEVICE
PROBLEM TO BE SOLVED: To provide a reduction gear capable of elongating a service life of a worm wheel by suppressing temperature rise of a tooth surface caused by friction by properly reducing a frictional coefficient in sliding between tooth surfaces by lubrication with an oil film, as a continuou...
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| creator | NAKADA RYUJI |
| description | PROBLEM TO BE SOLVED: To provide a reduction gear capable of elongating a service life of a worm wheel by suppressing temperature rise of a tooth surface caused by friction by properly reducing a frictional coefficient in sliding between tooth surfaces by lubrication with an oil film, as a continuous oil film can be formed between the tooth surfaces of a worm and the worm wheel by surely preventing grease shortage only by applying a small amount of grease without complicating a structure, and to provide an electric power steering device having low steering torque and having high operation feeling.SOLUTION: A reduction gear 48 includes: a worm 11 and a worm wheel 12 engaged with each other; and a housing 5 accommodating the worm and the worm wheel, and is filled with grease having a viscosity of 0.3 Pa s or more and 2 Pa s or less at 100°C in a shear rate of 100 s. An electric power steering device includes: the reduction gear 48. |
| format | Patent |
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An electric power steering device includes: the reduction gear 48.</description><language>eng</language><subject>BLASTING ; CHEMISTRY ; ENGINEERING ELEMENTS AND UNITS ; FUELS ; GEARING ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS ; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS ; LIGHTING ; LUBRICANTS ; LUBRICATING COMPOSITIONS ; MECHANICAL ENGINEERING ; METALLURGY ; MOTOR VEHICLES ; PEAT ; PERFORMING OPERATIONS ; PETROLEUM, GAS OR COKE INDUSTRIES ; TECHNICAL GASES CONTAINING CARBON MONOXIDE ; THERMAL INSULATION IN GENERAL ; TRAILERS ; TRANSPORTING ; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION ; WEAPONS</subject><creationdate>2014</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=20140508&DB=EPODOC&CC=JP&NR=2014080991A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140508&DB=EPODOC&CC=JP&NR=2014080991A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKADA RYUJI</creatorcontrib><title>REDUCTION GEAR, AND ELECTRIC POWER STEERING DEVICE</title><description>PROBLEM TO BE SOLVED: To provide a reduction gear capable of elongating a service life of a worm wheel by suppressing temperature rise of a tooth surface caused by friction by properly reducing a frictional coefficient in sliding between tooth surfaces by lubrication with an oil film, as a continuous oil film can be formed between the tooth surfaces of a worm and the worm wheel by surely preventing grease shortage only by applying a small amount of grease without complicating a structure, and to provide an electric power steering device having low steering torque and having high operation feeling.SOLUTION: A reduction gear 48 includes: a worm 11 and a worm wheel 12 engaged with each other; and a housing 5 accommodating the worm and the worm wheel, and is filled with grease having a viscosity of 0.3 Pa s or more and 2 Pa s or less at 100°C in a shear rate of 100 s. An electric power steering device includes: the reduction gear 48.</description><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FUELS</subject><subject>GEARING</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS</subject><subject>LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS</subject><subject>LIGHTING</subject><subject>LUBRICANTS</subject><subject>LUBRICATING COMPOSITIONS</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>MOTOR VEHICLES</subject><subject>PEAT</subject><subject>PERFORMING OPERATIONS</subject><subject>PETROLEUM, GAS OR COKE INDUSTRIES</subject><subject>TECHNICAL GASES CONTAINING CARBON MONOXIDE</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TRAILERS</subject><subject>TRANSPORTING</subject><subject>USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAKcnUJdQ7x9PdTcHd1DNJRcPRzUXD1cXUOCfJ0VgjwD3cNUggOcXUN8vRzV3BxDfN0duVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGhiYGFgaWloaOxkQpAgCmxicF</recordid><startdate>20140508</startdate><enddate>20140508</enddate><creator>NAKADA RYUJI</creator><scope>EVB</scope></search><sort><creationdate>20140508</creationdate><title>REDUCTION GEAR, AND ELECTRIC POWER STEERING DEVICE</title><author>NAKADA RYUJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2014080991A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2014</creationdate><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FUELS</topic><topic>GEARING</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS</topic><topic>LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS</topic><topic>LIGHTING</topic><topic>LUBRICANTS</topic><topic>LUBRICATING COMPOSITIONS</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>MOTOR VEHICLES</topic><topic>PEAT</topic><topic>PERFORMING OPERATIONS</topic><topic>PETROLEUM, GAS OR COKE INDUSTRIES</topic><topic>TECHNICAL GASES CONTAINING CARBON MONOXIDE</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TRAILERS</topic><topic>TRANSPORTING</topic><topic>USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKADA RYUJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAKADA RYUJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>REDUCTION GEAR, AND ELECTRIC POWER STEERING DEVICE</title><date>2014-05-08</date><risdate>2014</risdate><abstract>PROBLEM TO BE SOLVED: To provide a reduction gear capable of elongating a service life of a worm wheel by suppressing temperature rise of a tooth surface caused by friction by properly reducing a frictional coefficient in sliding between tooth surfaces by lubrication with an oil film, as a continuous oil film can be formed between the tooth surfaces of a worm and the worm wheel by surely preventing grease shortage only by applying a small amount of grease without complicating a structure, and to provide an electric power steering device having low steering torque and having high operation feeling.SOLUTION: A reduction gear 48 includes: a worm 11 and a worm wheel 12 engaged with each other; and a housing 5 accommodating the worm and the worm wheel, and is filled with grease having a viscosity of 0.3 Pa s or more and 2 Pa s or less at 100°C in a shear rate of 100 s. An electric power steering device includes: the reduction gear 48.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CHEMISTRY ENGINEERING ELEMENTS AND UNITS FUELS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING LUBRICANTS LUBRICATING COMPOSITIONS MECHANICAL ENGINEERING METALLURGY MOTOR VEHICLES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE THERMAL INSULATION IN GENERAL TRAILERS TRANSPORTING USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WEAPONS |
| title | REDUCTION GEAR, AND ELECTRIC POWER STEERING DEVICE |
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