FORWARD AND REVERSE GEAR CHANGE STRUCTURE OF TRACTOR

PROBLEM TO BE SOLVED: To lessen the member of pumps exerting a determined function in a forward and reverse gear change structure of a tractor where a forward clutch and a reverse clutch are selectively actuated to change over forwarding and reversing. SOLUTION: A forward and reverse selecting valve...

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Hauptverfasser:	NISHIBETSUPU SUGURU, HIROSUE TAKESHI, NAKAMURA MASAYUKI, TSUJI KENICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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creator	NISHIBETSUPU SUGURU HIROSUE TAKESHI NAKAMURA MASAYUKI TSUJI KENICHIRO
description	PROBLEM TO BE SOLVED: To lessen the member of pumps exerting a determined function in a forward and reverse gear change structure of a tractor where a forward clutch and a reverse clutch are selectively actuated to change over forwarding and reversing. SOLUTION: A forward and reverse selecting valve 51 selectively applying the oil pressure on either a forward clutch FC or a reverse clutch RC, a modulation mechanism 52 increasing oil pressure applied to the selected clutch with determined characteristics by use of a reducing valve, an inching mechanism 53 continuously regulating the oil pressure applied to the selected clutch from 0 pressure to the maximum pressure according to the treading amount of a pedal 20 and modulation characteristics changing mechanism 54 selectively changing the pressure increasing characteristics with a modulation mechanism to a plurality of specifications comprise a hydraulic unit 50 for forward and reverse changing, and also this hydraulic unit 50 is arranged in series to a hydraulic unit 30 for a power steering.
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SOLUTION: A forward and reverse selecting valve 51 selectively applying the oil pressure on either a forward clutch FC or a reverse clutch RC, a modulation mechanism 52 increasing oil pressure applied to the selected clutch with determined characteristics by use of a reducing valve, an inching mechanism 53 continuously regulating the oil pressure applied to the selected clutch from 0 pressure to the maximum pressure according to the treading amount of a pedal 20 and modulation characteristics changing mechanism 54 selectively changing the pressure increasing characteristics with a modulation mechanism to a plurality of specifications comprise a hydraulic unit 50 for forward and reverse changing, and also this hydraulic unit 50 is arranged in series to a hydraulic unit 30 for a power steering.</description><edition>7</edition><language>eng</language><subject>BLASTING ; ENGINEERING ELEMENTS AND UNITS ; GEARING ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2002</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=20020814&DB=EPODOC&CC=JP&NR=2002227976A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20020814&DB=EPODOC&CC=JP&NR=2002227976A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NISHIBETSUPU SUGURU</creatorcontrib><creatorcontrib>HIROSUE TAKESHI</creatorcontrib><creatorcontrib>NAKAMURA MASAYUKI</creatorcontrib><creatorcontrib>TSUJI KENICHIRO</creatorcontrib><title>FORWARD AND REVERSE GEAR CHANGE STRUCTURE OF TRACTOR</title><description>PROBLEM TO BE SOLVED: To lessen the member of pumps exerting a determined function in a forward and reverse gear change structure of a tractor where a forward clutch and a reverse clutch are selectively actuated to change over forwarding and reversing. 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subjects	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
title	FORWARD AND REVERSE GEAR CHANGE STRUCTURE OF TRACTOR
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