LOCKER ARM AND ITS MANUFACTURE
PROBLEM TO BE SOLVED: To provide a manufacturing method for a locker arm, by which the locker arm can be made lightweight, a sufficiently deep valve stem guide groove can be simply formed with high precision and the locker arm can be efficiently manufactured. SOLUTION: This invention is the manufact...
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| creator | NAGAO TERUO UECHI MICHIYUKI KAWATAKE YOSHIO |
| description | PROBLEM TO BE SOLVED: To provide a manufacturing method for a locker arm, by which the locker arm can be made lightweight, a sufficiently deep valve stem guide groove can be simply formed with high precision and the locker arm can be efficiently manufactured. SOLUTION: This invention is the manufacturing method for the locker arm by press forming. First of all, an intermediate product 20C is obtained, which is equipped with a pair of both side walls 22 and a valve stem abutting wall 30 connecting the space of one tip part in the longitudinal direction of both side walls 22 respectively. Next, the valve stem abutting wall 30 of an intermediate product 3C is compressed and formed in the direction to shorten the width of the abutting wall by pressing it to increase the thickness of the abutting wall 30. And, the valve stem guide groove 40 is formed on the bottom surface side of the valve stem abutting wall 30 having the increased thickness by driving a press punch for grooving. |
| format | Patent |
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SOLUTION: This invention is the manufacturing method for the locker arm by press forming. First of all, an intermediate product 20C is obtained, which is equipped with a pair of both side walls 22 and a valve stem abutting wall 30 connecting the space of one tip part in the longitudinal direction of both side walls 22 respectively. Next, the valve stem abutting wall 30 of an intermediate product 3C is compressed and formed in the direction to shorten the width of the abutting wall by pressing it to increase the thickness of the abutting wall 30. And, the valve stem guide groove 40 is formed on the bottom surface side of the valve stem abutting wall 30 having the increased thickness by driving a press punch for grooving.</description><edition>7</edition><language>eng</language><subject>BLASTING ; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ; ENGINE PLANTS IN GENERAL ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; PERFORMING OPERATIONS ; PUNCHING METAL ; STEAM ENGINES ; TRANSPORTING ; WEAPONS ; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><creationdate>2001</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=20010717&DB=EPODOC&CC=JP&NR=2001191139A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20010717&DB=EPODOC&CC=JP&NR=2001191139A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAGAO TERUO</creatorcontrib><creatorcontrib>UECHI MICHIYUKI</creatorcontrib><creatorcontrib>KAWATAKE YOSHIO</creatorcontrib><title>LOCKER ARM AND ITS MANUFACTURE</title><description>PROBLEM TO BE SOLVED: To provide a manufacturing method for a locker arm, by which the locker arm can be made lightweight, a sufficiently deep valve stem guide groove can be simply formed with high precision and the locker arm can be efficiently manufactured. SOLUTION: This invention is the manufacturing method for the locker arm by press forming. First of all, an intermediate product 20C is obtained, which is equipped with a pair of both side walls 22 and a valve stem abutting wall 30 connecting the space of one tip part in the longitudinal direction of both side walls 22 respectively. Next, the valve stem abutting wall 30 of an intermediate product 3C is compressed and formed in the direction to shorten the width of the abutting wall by pressing it to increase the thickness of the abutting wall 30. 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SOLUTION: This invention is the manufacturing method for the locker arm by press forming. First of all, an intermediate product 20C is obtained, which is equipped with a pair of both side walls 22 and a valve stem abutting wall 30 connecting the space of one tip part in the longitudinal direction of both side walls 22 respectively. Next, the valve stem abutting wall 30 of an intermediate product 3C is compressed and formed in the direction to shorten the width of the abutting wall by pressing it to increase the thickness of the abutting wall 30. And, the valve stem guide groove 40 is formed on the bottom surface side of the valve stem abutting wall 30 having the increased thickness by driving a press punch for grooving.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL STEAM ENGINES TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL |
| title | LOCKER ARM AND ITS MANUFACTURE |
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