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31. 发明专利

JP2001009067A IMPROVED RACKET 失效
公开(公告)号：JP2001009067A
公开(公告)日：2001-01-16
申请号：JP2000183460
申请日：2000-06-19
申请人： DUNLOP SLAZENGER GROUP LTD
发明人： PERRY RICHARD G
IPC分类号： A63B49/00 , A63B49/02 , A63B60/52 , A63B49/06
摘要： PROBLEM TO BE SOLVED: To provide a racket which can make the speed of a ball obtainable when the ball is hit higher than that of the conventional racket which is equal in the dimensions. SOLUTION: At least a portion of a frame is formed to a recessed shape when viewed from a string spreading surface and the region A of the actual string spreading surface is formed wider than a visible region P when the racket 19 is viewed from the front, by which a ball hitting area is made wider and particularly when the recessed part is formed only on the head part 1 side, the effective center of the string spreading part may be shifted more to the head side than the conventional racket and a player is able to hit the ball correspondingly more strongly.

32. 发明专利

JPH0751409A RACKET 失效
公开(公告)号：JPH0751409A
公开(公告)日：1995-02-28
申请号：JP20527893
申请日：1993-08-19
申请人： BRIDGESTONE SPORTS CO LTD
发明人： TAKAHASHI YASUHIKO , IIDA KATSUMI , NISHIMURA KAZUHIRO
IPC分类号： A63B60/52 , A63B49/06
摘要： PURPOSE:To provide a racket having improved control performance without impairing repulsion performance. CONSTITUTION:A frame body part 11 of the racket 10 is provided with a groove 13 on the outer peripheral surface of a face side part 12. The outer peripheral surface of face top part 14 is formed as a flat surface. Since the outer peripheral surface of the face top part 14 of a frame body part 11 is formed as a flat frame, the pliable feel of the front end is increased and the repulsion performance is improved. The face side part 12 has a recessed part at its center and, therefore, the rigidity thereof is high and the gut surface is stabilized. As a result, the racket having the good repulsion performance and the excellent controllability is obtd.

33. 实用新型

JPH0663067U 失效
公开(公告)号：JPH0663067U
公开(公告)日：1994-09-06
申请号：JP392993
申请日：1993-02-10
IPC分类号： A63B60/52 , A63B49/06

34. 实用新型

JPS6371060U 失效
公开(公告)号：JPS6371060U
公开(公告)日：1988-05-12
申请号：JP16490786
申请日：1986-10-29
IPC分类号： A63B49/02 , A63B49/022 , A63B51/00 , A63B60/52 , A63B102/02 , A63B49/06

35. 实用新型

JPS556583Y2 失效
公开(公告)号：JPS556583Y2
公开(公告)日：1980-02-14
申请号：JP10966775
申请日：1975-08-08
IPC分类号： A63B49/14 , A63B51/00 , A63B60/52 , A63B102/02

36. 实用新型

JPS5216845Y2 失效
公开(公告)号：JPS5216845Y2
公开(公告)日：1977-04-15
申请号：JP14407874
申请日：1974-11-28
IPC分类号： A63B49/00 , A63B49/12 , A63B60/52 , A63B49/06

37. 实用新型

JPS5216844Y2 失效
公开(公告)号：JPS5216844Y2
公开(公告)日：1977-04-15
申请号：JP14157474
申请日：1974-11-22
IPC分类号： A63B60/52 , A63B49/06

38. 发明专利

JP2001000604A BALANCING WEIGHT FOR SPORTING GOODS 失效
公开(公告)号：JP2001000604A
公开(公告)日：2001-01-09
申请号：JP17211199
申请日：1999-06-18
申请人： SUMITOMO RUBBER IND
发明人： SAKAKI TOSHIAKI , MIZOGUCHI TETSURO
IPC分类号： A63B49/10 , A63B53/06 , A63B60/02 , A63B60/52 , A63B102/02 , A63B102/06 , A63B102/32 , C08K3/00 , C08L53/02 , A63B49/04
摘要： PROBLEM TO BE SOLVED: To provide high flexibility in a heavy specific gravity without using lead by using thermoplastic elastomer composed of a hard segment and a soft segment and metallic powder having a specific gravity not less than a specific value as a main component, and blending both in a specific weight ratio range. SOLUTION: A balancing weight 1 is composed of metallic powder 2 having a specific gravity not less than 15 and a binder 3. Since there is no need to form the metallic powder 2 of only a metallic element, a compound with the other element and ceramics can be used. For example, tungsten, gold and osmium are used. The average particle diameter is desirably about 2 μm to about 100 μm. Thermoplastic elastomer composed of a hard segment and a soft segment, for example, styrenic thermoplastic elastomer is used as the binder 3. The weight ratio of the binder 3 and the metallic powder 2 is set to 2.5/97.5 to 6.5/93.5 to thus enrich flexibility as well as to realize a heavey specific gravity.

39. 发明专利

JPH07213652A RACKET FRAME AND ITS FORMING DIE 失效
公开(公告)号：JPH07213652A
公开(公告)日：1995-08-15
申请号：JP1413794
申请日：1994-02-08
申请人： ASICS CORP
发明人： IKEDA KENSHO , KODAMA TAKESHI
IPC分类号： A63B49/10 , A63B60/52 , A63B102/02 , A63B102/06 , A63B49/06
摘要： PURPOSE:To provide a racket frame in which a cost can be reduced by reducing working time and labor by omitting a work process and parts, and a grip part is formed in light weight and high strength. CONSTITUTION:This frame is provided with a dent 2 of string stretch part shape, a dent 3 of throat shape, a dent 4 of shaft shape, and a dent 5 of grip shape for the racket frame, and they are connected with only a pair of subject types communicating them or the subject type and an auxiliary type independently.

40. 发明专利

JPH0739608A RACKET HAVING OUTER PERIPHERAL RECESSED PART 失效
公开(公告)号：JPH0739608A
公开(公告)日：1995-02-10
申请号：JP22776793
申请日：1993-07-30
申请人： USUI MITSURU
发明人： USUI MITSURU
IPC分类号： A63B60/52 , A63B51/12 , A63B49/06
摘要： PURPOSE:To form a frame having deep outer peripheral recessed parts as a combination of two sheets of curved flat plates and to easily form the frame by molding this frame and subjecting the frame having the outer peripheral recessed parts to bridging and extending. CONSTITUTION:Two sheets of slender coordinate flat plates 1 having a concentrical cut piece shape are prepd. and their edges are so coupled as to be openable and closable. A V-shaped hinge frame cut piece 2 opening to an outer V shape is formed when force is applied at both ends so as to increase curvature. The curvature of this V-shaped hinge frame cut piece 2 increases and simultaneously its V angle increases if the force is applied to the cut piece so as to press its one end and, therefore, the simultaneous increase of the curvature and the V angle leads to an increase of the basic length of guts if the V-shaped hinge frame cut piece 2 is so deviced as to slightly increase its length. The tension is consequently increased if the length of the guts is assumed not to change. The tension of the guts are thus freely adjustable in the tensed state. The V-shaped hinge frame and V-frames, the sections of which are not pipes, are easily moldable '' as the frames are planar as a whole.

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