HEAD FOR GOLF CLUB

PURPOSE:To provide a stable shot a flying distance of which is high by a method wherein a heavy body approximately in a annular shape is situated along the inner periphery of the side wall of the outer shell of a body of fiber-reinforced plastics and positioned in a level lower than a half the heigh...

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creator SODA TAKEO
description PURPOSE:To provide a stable shot a flying distance of which is high by a method wherein a heavy body approximately in a annular shape is situated along the inner periphery of the side wall of the outer shell of a body of fiber-reinforced plastics and positioned in a level lower than a half the height of a face surface, and a reinforcing material is placed to the inside of the body face surface. CONSTITUTION:Since a heavy body 6 approximately in a annular shape is disposed along the inner periphery of a side wall part 2 of a head body 1, annular structure prevents deformation of the head body 1 during driving, and energy during driving is prevented from diminution due to deformation of a head. Further, since the heavy body 6 is positioned in a level lower than 1/2 the height of a face surface 3, the center of gravity of the head coincides with the central part or a position therebelow where there is high probability for a ball to collide therewith, whereby the rotation action of the head during driving is decreased and back spin exerted on a ball is reduced. Further, since a reinforcing material 7, e.g., a metal, ceramics is disposed to the inner side of the face surface 3 in a manner to make contact therewith, the face surface 3 is reinforced, and there is no need to especially increase the thickness of the face surface 3 as in a head made of FRP.
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CONSTITUTION:Since a heavy body 6 approximately in a annular shape is disposed along the inner periphery of a side wall part 2 of a head body 1, annular structure prevents deformation of the head body 1 during driving, and energy during driving is prevented from diminution due to deformation of a head. Further, since the heavy body 6 is positioned in a level lower than 1/2 the height of a face surface 3, the center of gravity of the head coincides with the central part or a position therebelow where there is high probability for a ball to collide therewith, whereby the rotation action of the head during driving is decreased and back spin exerted on a ball is reduced. Further, since a reinforcing material 7, e.g., a metal, ceramics is disposed to the inner side of the face surface 3 in a manner to make contact therewith, the face surface 3 is reinforced, and there is no need to especially increase the thickness of the face surface 3 as in a head made of FRP.</description><language>eng</language><subject>AMUSEMENTS ; APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING ; BALL GAMES ; GAMES ; HUMAN NECESSITIES ; SPORTS ; TRAINING EQUIPMENT</subject><creationdate>1990</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&amp;date=19900302&amp;DB=EPODOC&amp;CC=JP&amp;NR=H0263482A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19900302&amp;DB=EPODOC&amp;CC=JP&amp;NR=H0263482A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SODA TAKEO</creatorcontrib><title>HEAD FOR GOLF CLUB</title><description>PURPOSE:To provide a stable shot a flying distance of which is high by a method wherein a heavy body approximately in a annular shape is situated along the inner periphery of the side wall of the outer shell of a body of fiber-reinforced plastics and positioned in a level lower than a half the height of a face surface, and a reinforcing material is placed to the inside of the body face surface. CONSTITUTION:Since a heavy body 6 approximately in a annular shape is disposed along the inner periphery of a side wall part 2 of a head body 1, annular structure prevents deformation of the head body 1 during driving, and energy during driving is prevented from diminution due to deformation of a head. Further, since the heavy body 6 is positioned in a level lower than 1/2 the height of a face surface 3, the center of gravity of the head coincides with the central part or a position therebelow where there is high probability for a ball to collide therewith, whereby the rotation action of the head during driving is decreased and back spin exerted on a ball is reduced. 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CONSTITUTION:Since a heavy body 6 approximately in a annular shape is disposed along the inner periphery of a side wall part 2 of a head body 1, annular structure prevents deformation of the head body 1 during driving, and energy during driving is prevented from diminution due to deformation of a head. Further, since the heavy body 6 is positioned in a level lower than 1/2 the height of a face surface 3, the center of gravity of the head coincides with the central part or a position therebelow where there is high probability for a ball to collide therewith, whereby the rotation action of the head during driving is decreased and back spin exerted on a ball is reduced. Further, since a reinforcing material 7, e.g., a metal, ceramics is disposed to the inner side of the face surface 3 in a manner to make contact therewith, the face surface 3 is reinforced, and there is no need to especially increase the thickness of the face surface 3 as in a head made of FRP.</abstract><oa>free_for_read</oa></addata></record>
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subjects AMUSEMENTS
APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING
BALL GAMES
GAMES
HUMAN NECESSITIES
SPORTS
TRAINING EQUIPMENT
title HEAD FOR GOLF CLUB
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