Title:
【発明の名称】長いストリングのラケット
Document Type and Number:
Japanese Patent JP2000508952
Kind Code:
A
Abstract:
A racquet with strings and a handle has at least a portion of the strung length of at least some of its strings at least partially within a cavity defined by the racquet's handle, and/or, in the case of a racquet having a shaft, a cavity defined by the racquet's shaft. Typically two, or some multiple of two, strings are extended in strung length by at least a portion of the length of the handle's (shaft's) cavity. The cavity may be but only slightly recessed into the handle (shaft), and may be nearly as long as is the handle (shaft) itself. Particularly in the case those racquetball racquets qualified by the 1996 rules of the American Amateur Racquetball Association to twenty one inches (21'') in total length, each of preferably two or more "long" strings commonly extend at least fifteen and one-half inches (>/=5+E,fra 1/2+EE ''), and may extend as long as twenty and one-half inches (>20+E,fra 1/2+EE ''), in strung length by virtue of extending within the cavity of a hollow handle. The "long" strings are subject to being displaced a greater distance from the plane of the racquet during ball strikes and strokes than are the shorter strings for which they substitute, beneficially permitting (i) a greater energy storage in the strings and racquet frame, (ii) a larger sweet spot, longer ball contact, and (iii) a more prolonged and greater return of energy to the struck ball.
Inventors:
Malt Bed Raymond Lee
Grims Ronald Alan
Colburn Todd Bedel
Grims Ronald Alan
Colburn Todd Bedel
Application Number:
JP53900797A
Publication Date:
July 18, 2000
Filing Date:
April 24, 1997
Export Citation:
Assignee:
IF Composite Technologies Limited Partnership
International Classes:
A63B49/08; A63B51/00; A63B51/12; (IPC1-7): A63B51/12; A63B49/08
Attorney, Agent or Firm:
Motohiko Fujimura (1 outside)