JP2902986B
PROBLEM TO BE SOLVED: To allow a damping device to exhibit its damping effect even on microvibrations by fixing, near the curved end of a steel pipe pole and inside the steel pipe pole, a fixing part where one end of a coil spring is fixed into place, connecting the other end to a weight, and attach...
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| creator | HATANO YASUFUMI OKAMOTO MASANOBU |
| description | PROBLEM TO BE SOLVED: To allow a damping device to exhibit its damping effect even on microvibrations by fixing, near the curved end of a steel pipe pole and inside the steel pipe pole, a fixing part where one end of a coil spring is fixed into place, connecting the other end to a weight, and attaching the weight into place in such a way that it can be moved by a guide only in the direction of its axis inside the steel pipe pole. SOLUTION: When a steel pipe pole is vibrated, a weight 4 is also vibrated and absorbs part of the vibrational energy of the steel pipe pole. Also, the weight 4 collides against a stopper 5, dissipating part of the vibrational energy of the steel pipe pole. Since the vibrational energy of the steel pipe pole is absorbed thereafter by the displacement of the weight 4 due to the vibration, the energy is converted mainly into thermal energy by the collision and dissipated, and the vibration comes to a stop. In this case, the vibrational amplitude of the weight 4 decreases as damping proceeds, but since the stopper 5 is provided in the position of static equilibrium length determined with the weight 4 hanging from a coil spring 3, the weight 4 surely repeats collisions with the stopper 5 and therefore its damping function does not stop. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2902986BB2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2902986BB2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2902986BB23</originalsourceid><addsrcrecordid>eNrjZODyCjCyNDCytDBz4mFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8QgNTkbGxKgBACqAG4U</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>JP2902986B</title><source>esp@cenet</source><creator>HATANO YASUFUMI ; OKAMOTO MASANOBU</creator><creatorcontrib>HATANO YASUFUMI ; OKAMOTO MASANOBU</creatorcontrib><description>PROBLEM TO BE SOLVED: To allow a damping device to exhibit its damping effect even on microvibrations by fixing, near the curved end of a steel pipe pole and inside the steel pipe pole, a fixing part where one end of a coil spring is fixed into place, connecting the other end to a weight, and attaching the weight into place in such a way that it can be moved by a guide only in the direction of its axis inside the steel pipe pole. SOLUTION: When a steel pipe pole is vibrated, a weight 4 is also vibrated and absorbs part of the vibrational energy of the steel pipe pole. Also, the weight 4 collides against a stopper 5, dissipating part of the vibrational energy of the steel pipe pole. Since the vibrational energy of the steel pipe pole is absorbed thereafter by the displacement of the weight 4 due to the vibration, the energy is converted mainly into thermal energy by the collision and dissipated, and the vibration comes to a stop. In this case, the vibrational amplitude of the weight 4 decreases as damping proceeds, but since the stopper 5 is provided in the position of static equilibrium length determined with the weight 4 hanging from a coil spring 3, the weight 4 surely repeats collisions with the stopper 5 and therefore its damping function does not stop.</description><edition>6</edition><language>eng</language><subject>ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE ; BLASTING ; BUILDING ; BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES ; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES ; ENGINEERING ELEMENTS AND UNITS ; FENCING ; FIXED CONSTRUCTIONS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MASTS ; MEANS FOR DAMPING VIBRATION ; MECHANICAL ENGINEERING ; SHOCK-ABSORBERS ; SPRINGS ; SWIMMING OR SPLASH BATHS OR POOLS ; TENTS OR CANOPIES, IN GENERAL ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>1999</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=19990607&DB=EPODOC&CC=JP&NR=2902986B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25553,76306</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990607&DB=EPODOC&CC=JP&NR=2902986B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HATANO YASUFUMI</creatorcontrib><creatorcontrib>OKAMOTO MASANOBU</creatorcontrib><title>JP2902986B</title><description>PROBLEM TO BE SOLVED: To allow a damping device to exhibit its damping effect even on microvibrations by fixing, near the curved end of a steel pipe pole and inside the steel pipe pole, a fixing part where one end of a coil spring is fixed into place, connecting the other end to a weight, and attaching the weight into place in such a way that it can be moved by a guide only in the direction of its axis inside the steel pipe pole. SOLUTION: When a steel pipe pole is vibrated, a weight 4 is also vibrated and absorbs part of the vibrational energy of the steel pipe pole. Also, the weight 4 collides against a stopper 5, dissipating part of the vibrational energy of the steel pipe pole. Since the vibrational energy of the steel pipe pole is absorbed thereafter by the displacement of the weight 4 due to the vibration, the energy is converted mainly into thermal energy by the collision and dissipated, and the vibration comes to a stop. In this case, the vibrational amplitude of the weight 4 decreases as damping proceeds, but since the stopper 5 is provided in the position of static equilibrium length determined with the weight 4 hanging from a coil spring 3, the weight 4 surely repeats collisions with the stopper 5 and therefore its damping function does not stop.</description><subject>ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE</subject><subject>BLASTING</subject><subject>BUILDING</subject><subject>BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES</subject><subject>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FENCING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MASTS</subject><subject>MEANS FOR DAMPING VIBRATION</subject><subject>MECHANICAL ENGINEERING</subject><subject>SHOCK-ABSORBERS</subject><subject>SPRINGS</subject><subject>SWIMMING OR SPLASH BATHS OR POOLS</subject><subject>TENTS OR CANOPIES, IN GENERAL</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZODyCjCyNDCytDBz4mFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8QgNTkbGxKgBACqAG4U</recordid><startdate>19990607</startdate><enddate>19990607</enddate><creator>HATANO YASUFUMI</creator><creator>OKAMOTO MASANOBU</creator><scope>EVB</scope></search><sort><creationdate>19990607</creationdate><title>JP2902986B</title><author>HATANO YASUFUMI ; OKAMOTO MASANOBU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2902986BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE</topic><topic>BLASTING</topic><topic>BUILDING</topic><topic>BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES</topic><topic>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FENCING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MASTS</topic><topic>MEANS FOR DAMPING VIBRATION</topic><topic>MECHANICAL ENGINEERING</topic><topic>SHOCK-ABSORBERS</topic><topic>SPRINGS</topic><topic>SWIMMING OR SPLASH BATHS OR POOLS</topic><topic>TENTS OR CANOPIES, IN GENERAL</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>HATANO YASUFUMI</creatorcontrib><creatorcontrib>OKAMOTO MASANOBU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HATANO YASUFUMI</au><au>OKAMOTO MASANOBU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>JP2902986B</title><date>1999-06-07</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To allow a damping device to exhibit its damping effect even on microvibrations by fixing, near the curved end of a steel pipe pole and inside the steel pipe pole, a fixing part where one end of a coil spring is fixed into place, connecting the other end to a weight, and attaching the weight into place in such a way that it can be moved by a guide only in the direction of its axis inside the steel pipe pole. SOLUTION: When a steel pipe pole is vibrated, a weight 4 is also vibrated and absorbs part of the vibrational energy of the steel pipe pole. Also, the weight 4 collides against a stopper 5, dissipating part of the vibrational energy of the steel pipe pole. Since the vibrational energy of the steel pipe pole is absorbed thereafter by the displacement of the weight 4 due to the vibration, the energy is converted mainly into thermal energy by the collision and dissipated, and the vibration comes to a stop. In this case, the vibrational amplitude of the weight 4 decreases as damping proceeds, but since the stopper 5 is provided in the position of static equilibrium length determined with the weight 4 hanging from a coil spring 3, the weight 4 surely repeats collisions with the stopper 5 and therefore its damping function does not stop.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES ENGINEERING ELEMENTS AND UNITS FENCING FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MASTS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SHOCK-ABSORBERS SPRINGS SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS |
| title | JP2902986B |
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