Tennis racket

Claim 2

A grip portion of a tennis racket to be held by a user's hand, wherein said grip portion comprises: only two raised ribs which are disposed along ridges at diagonally opposite portions of a cross section of said grip portion and extend over generally the entire length of said grip portion, wherein said grip portion is firmly held in said hand in a gripping position that remains the same during a forehand stroke and a backhand stroke, thereby enabling the user to determine and maintain an optimum grip which is applicable in both said forehand stroke and said backhand stroke, and said raised ribs prevent rotation of said racket within said hand.

Claim 3

Grip portion of claim 1, wherein each of said raised ribs is provided on an outer peripheral surface of a core member of said grip portion in the longitudinal direction; and a leather tape is wound around said raised ribs.

Claim 4

Grip portion of claim 1, wherein each of said raised ribs is provided at each end thereof with an elastic ring member, said ring member being fitted on said grip portion, thereby forming said raised ribs on said grip portion.

Claim 5

Grip portion of claim 1, wherein a tube provided on an outer surface thereof with said two raised ribs in the longitudinal direction is fitted onto said grip portion, thereby forming said raised ribs on said grip portion.

Claim 6

A tennis racket of claim 4, wherein said tube is thermally contractible.

Claim 7

A grip portion of a tennis racket to be held by a user's hand, wherein said grip portion comprises: only two raised ribs which extend over generally the entire length of said grip portion and are disposed at positions where one of said two raised ribs comes into contact with the part of the hand between the thumb and the index finger and the other raised rib comes into contact with the joint portions of the four fingers other than the thumb when said grip portion is held in the hand, wherein said grip portion is firmly held in said hand in a gripping position that remains the same during a forehand stroke or a backhand stroke, thereby enabling the user to determine and maintain an optimum grip which is applicable in both said forehand stroke and said backhand stroke, and said raised ribs prevent rotation of said racket within said hand.

Claim 8

A grip portion of a tennis racket to be held by a user's hand, wherein said grip portion comprises: only two raised ribs which extend over generally the entire length of said grip portion and are disposed at positions where one of said two raised ribs comes into contact with the part of the hand between the thumb and the index finger and the other raised rib comes into contact with the joint portions of the four fingers other than the thumb when said grip portion is held in the hand, wherein said grip portion is firmly held in said hand in a gripping position that remains the same during a forehand stroke or a backhand stroke, thereby enabling the user to determine and maintain an optimum grip which is applicable in both said forehand stroke and said backhand stroke, and said raised ribs prevent rotation of said racket within said hand.

Claim 9

A grip portion of a tennis racket to be held be a user's hand, wherein said grip portion comprises: only two raised ribs which extend over generally the entire length of said grip portion and are disposed at diagonally opposite positions, wherein one of said two raised ribs comes into contact with the part of the hand between the thumb and the index finger at all times, and the other raised rib comes into contact with the joint portions of the four fingers other than the thumb at all times when said grip portion is held in the hand, and wherein said grip portion is firmly held in asid hand in a grippin position that remains the same during a forehand stroke or a backhand stroke, thereby enabling the user to determine and maintain an optimum grip which is applicable in both said forehand stroke and said backhand stroke, and said raised ribs prevent rotation of said racket within said hand.

Claim 10

A grip portion of a tennis racket to be held be a user's hand, wherein said grip portion comprises: only two raised ribs which extend over generally the entire length of said grip portion and are disposed at diagonally opposite positions, wherein one of said two raised ribs comes into contact with the part of the hand between the thumb and the index finger at all times, and the other raised rib comes into contact with the joint portions of the four fingers other than the thumb at all times when said grip portion is held in the hand, and wherein said grip portion is firmly held in asid hand in a grippin position that remains the same during a forehand stroke or a backhand stroke, thereby enabling the user to determine and maintain an optimum grip which is applicable in both said forehand stroke and said backhand stroke, and said raised ribs prevent rotation of said racket within said hand.