公开(公告)号：US3483055A

公开(公告)日：1969-12-09

申请号：US3483055D

申请日：1966-03-28

申请人： ROBERT WAYNE ESHBAUGH

发明人： ESHBAUGH ROBERT WAYNE

IPC分类号： A63B49/10 ,  B29D12/00

CPC分类号： A63B49/10 ,  A63B2209/023 ,  B29C70/20 ,  Y10S273/07

摘要： The invention relates to a new construction for a laminated sport racket frame, such as for a tennis racket. The frame head is made up of a closed loop while at least another layer of material is wound along the outer periphery of the loop and extends away therefrom at the neck portion of the frame to form the handle portion. The foregoing is achieved through the use of windable materials for forming the respective layers of the laminate, these materials being rigidified by a hardenable liquid bonding agent. The use of windable materials results in a relatively high volumetric ratio of windable material to bonding agent in the finished laminate.

公开(公告)号：US3431626A

公开(公告)日：1969-03-11

申请号：US3431626D

申请日：1966-06-13

申请人： CARLTON WILLIAM C

发明人： CARLTON WILLIAM C

IPC分类号： A63B49/00 ,  A63B49/04 ,  A63B49/12 ,  B23P17/00 ,  A63B49/10

CPC分类号： A63B49/12 ,  A63B49/022 ,  A63B60/02 ,  Y10T29/496 ,  Y10T29/4981

公开(公告)号：US2878020A

公开(公告)日：1959-03-17

申请号：US13342349

申请日：1949-12-16

申请人： ROBINSON ROY H

发明人： ROBINSON ROY H

IPC分类号： A63B49/02 ,  A63B49/10

CPC分类号： A63B49/10 ,  A63B2049/0211 ,  A63B2049/103

公开(公告)号：US11806584B2

公开(公告)日：2023-11-07

申请号：US16195277

申请日：2018-11-19

申请人： Xene Corporation

发明人： Jerry Choe ,  Hsu Chien Sheng

IPC分类号： B29C44/16 ,  A63B49/11 ,  A63B60/00 ,  B29C70/44 ,  B29C70/68 ,  B29L31/52 ,  A63B60/54 ,  A63B60/42 ,  A63B60/02 ,  A63B49/032 ,  A63B60/08 ,  A63B60/10 ,  A63B60/06 ,  A63B49/035 ,  A63B49/10

CPC分类号： A63B49/11 ,  A63B60/00 ,  B29C44/16 ,  B29C70/446 ,  B29C70/68 ,  A63B49/032 ,  A63B49/035 ,  A63B49/10 ,  A63B60/02 ,  A63B60/06 ,  A63B60/08 ,  A63B60/10 ,  A63B60/42 ,  A63B60/54 ,  A63B2209/02 ,  A63B2209/023 ,  B29L2031/5245 ,  B32B2307/544 ,  B32B2307/558 ,  B32B2309/12 ,  Y10T156/103

摘要： The inventive fiber manufacturing process is particularly adapted for demanding applications such as sports racquets, including tennis racquets, badminton racquets and other sports applications. Because of the improved strength to weight ratio of components formed using the inventive method, a wide range of flexibility is achieved, allowing use of the inventive process to manufacture, for example, a fiber reinforced (for example, graphite) modular sports racquet, optionally provided with user-selectable weights and/or handle replacements. From the standpoint of the player, this allows a racquet frame featuring self customization. From the standpoint of a retailer, the benefit provided is reduction of inventory. The inventive fiber, for example graphite fiber) racquet frame is filled with a plastic foam and is formed using, for example, microencapsulation technology to time, generate and apply the pressure used to form the graphite composite material of which the racquet is comprised. Advantageously, inner and outer tubular members may be used to form the racquet frame, with the inner tubular member extending around the head of the racquet frame. This compares to the standard industry technique of air injection. The racquet is thus not hollow like conventional graphite racquets, and the walls therefore can be made thinner than those of existing graphite racquets still being of the same strength or being stronger, which gives the racquet exceptional performance. In addition, the overall dimensions of, for example the cross-section, of the racquet can also be reduced while still maintaining performance characteristics.

公开(公告)号：US11679308B2

公开(公告)日：2023-06-20

申请号：US16899683

申请日：2020-06-12

申请人： Head Technology GmbH

发明人： Ralf Schwenger ,  Stefan Mohr

IPC分类号： A63B49/10

CPC分类号： A63B49/10 ,  A63B2209/026

摘要： The present invention relates to a ball game racket frame with a head portion and a handle portion, wherein the ball game racket frame comprises a fiber composite with at least one multi-fiber roving that is at least partially twisted.

公开(公告)号：US20220212064A1

公开(公告)日：2022-07-07

申请号：US17703398

申请日：2022-03-24

申请人： WILSON SPORTING GOODS CO.

发明人： William D. Severa ,  Dale J. Zwack ,  Robert T. Kapheim ,  Eloisa M. Compostizo

IPC分类号： A63B49/028 ,  A63B60/42 ,  A63B49/10 ,  G01N3/20 ,  G01N3/26 ,  G01N3/14 ,  G01N3/22 ,  G01N3/04 ,  G01N3/34 ,  A63B1/00

摘要： A racquet including a frame including a head portion, a handle portion, and a throat portion. The head portion forms a hoop that defines a string bed plane. The head portion of the racquet being formed of a fiber composite material. When the racquet is tested under a racquet forward/rearward bending test, the racquet has a forward/rearward deflection with respect to the longitudinal axis of at least 8.5 mm when measured in a direction that is perpendicular to the string bed plane and perpendicular to the longitudinal axis. When the racquet is tested under a racquet torsional stability test, the racquet has an angular deflection of less than 5.5 degrees about a longitudinal axis.

公开(公告)号：US20210387059A1

公开(公告)日：2021-12-16

申请号：US17331976

申请日：2021-05-27

申请人： SUMITOMO RUBBER INDUSTRIES, LTD.

发明人： Fumiya SUZUKI

IPC分类号： A63B49/03 ,  A63B49/10

摘要： A tennis racket includes throats. Each throat includes a fiber reinforced layer and a vibration damper. The vibration damper is surrounded by the fiber reinforced layer. The fiber reinforced layer includes a plurality of reinforcement fibers and a matrix. The reinforcement fibers are typically carbon fibers. The material of the matrix is a resin composition whose base material is an epoxy resin. The vibration damper is formed of a polymer composition. The polymer composition contains a base polymer. The base polymer is preferably a styrene-isoprene-styrene block copolymer or an acrylic elastomer.

公开(公告)号：US20210276278A1

公开(公告)日：2021-09-09

申请号：US17328194

申请日：2021-05-24

申请人： TOPKEY CORPORATION

发明人： Chih-Ming CHUANG ,  Wan-Ting CHUNG ,  Yen-Ta LU

IPC分类号： B29C70/02 ,  A63B49/10 ,  B29C70/88 ,  B60B5/02 ,  B60B1/00 ,  B32B27/12 ,  B32B27/32 ,  B32B27/40 ,  B32B27/02

摘要： A composite material body (10) includes a first material layer (20) and a second material layer (30) overlapping the first material layer (20). The first material layer (20) and the second material layer (30) are wound to form a flexible and circular rod. Impact absorption is effectively improved and impact resisting strength is enhanced because energy-absorber or damping material or its composition is attached into the composite material body (10). Technical characteristics, effects and objects of this invention are achieved thereby.

公开(公告)号：US20200298070A1

公开(公告)日：2020-09-24

申请号：US15929517

申请日：2020-05-06

申请人： WILSON SPORTING GOODS CO.

发明人： William D. Severa ,  Dale J. Zwack ,  Robert T. Kapheim ,  Eloisa M. Compostizo

IPC分类号： A63B49/028 ,  A63B60/42 ,  A63B49/10 ,  G01N3/20 ,  G01N3/26 ,  G01N3/14 ,  G01N3/22 ,  G01N3/04 ,  G01N3/34 ,  A63B1/00

摘要： A racquet extends along a longitudinal axis and is capable of being tested under a racquet lateral bending test and a racquet torsional stability test. The racquet lateral bending test includes mounting the racquet in a first orientation to a first test fixture at a first longitudinal location, attaching a clamp to the racquet at a second location, operably engaging a deflection indicator to the clamp, applying a first predetermined weight to the racquet at a third location, and removing the first weight to obtain a lateral deflection measurement of the racquet with respect to the longitudinal axis. The racquet torsional stability test includes mounting the racquet to second and third test fixtures at sixth and seventh locations of the racquet, respectively, placing a third predetermined weight on an arm extending from the second test fixture, removing the third predetermined weight to obtain an angular deflection about the axis. The racquet comprises a frame including head and handle portions and a throat portion positioned between the head and handle portions. The head portion forms a hoop that defines a string bed plane. When the racquet is tested under the racquet lateral bending test, the racquet has a lateral deflection of at least 6.0 mm when measured in a direction that is parallel to the plane and perpendicular to the axis. When the racquet is tested under the racquet torsional stability test, the racquet has an angular deflection of less than 5.0 degrees about the axis.

公开(公告)号：US10646753B2

公开(公告)日：2020-05-12

申请号：US16012344

申请日：2018-06-19

申请人： WILSON SPORTING GOODS CO.

发明人： William D. Severa ,  Dale J. Zwack ,  Robert T. Kapheim ,  Eloisa M. Compostizo

IPC分类号： A63B49/02 ,  A63B49/10 ,  A63B49/028 ,  A63B60/42 ,  G01N3/20 ,  G01N3/26 ,  G01N3/14 ,  G01N3/22 ,  G01N3/04 ,  G01N3/34 ,  A63B1/00 ,  A63B102/02

摘要： A racquet includes a frame extending along a longitudinal axis. The frame includes head and handle portions, and a throat portion positioned between the head and handle portions. The head and throat portions are formed at least in part of a fiber composite material. The material includes a plurality of ply arrangements. Each of the arrangements includes one ply having a first plurality of fibers defining a first angle with respect to a composite axis, and another ply having a second plurality of fibers defining a second angle with respect to the composite axis. The first and second angles are substantially the same except the angles have opposite polarities with respect to the composite axis. The head portion includes at least three arrangements overlaying each other, and the first and second angles of at least two of the at least three arrangements are at least 35 degrees.