Vibration dampening racket
AssigneeKabushiki Kaisha Sigel
InventorMotoyasu Nakanishi
Life of this patent
Estimating the term…
Abstract
A racket for playing tennis or similar ball games having a straight bar type stem part which continues to an annular ball hitting part. A hole is provided in the stem part in which a vibration absorbing member is stored. Said vibration absorbing member comprises a buffer layer made of a gel material and a mass member supported by this buffer layer. The buffer layer is fixed so that it can be deformed in said hole and said mass member is supported so that it does not contact the internal surface of the hole. Said vibration absorbing member can be put in an outer casing and inserted into the hole. In this case, the buffer layer is deformed in the outer casing and the mass member is held so that it does not contact the internal surface of the outer casing.
Claims25
A racket for playing tennis or similar ball games comprising
- (a) a frame which has an annular ball hitting part and a bar type stem part having two ends, one end attached to said ball hitting part and the other end having a grip part thereon,
- (b) a net which is extended across said ball hitting part,
- (c) a hole which is provided on a straight bar part between said grip part and said ball hitting part of the stem part of said frame and which is open at least at its one end,
- (d) at least one cover which is attached to the opening of said hole, and
- (e) a vibration absorbing member which is accommodated in said hole,
- wherein said vibration absorbing member comprises at least one buffer layer of a gel material which is fixed to be deformable in said hole, and at least one mass member for weighing said racket which is supported by said buffer layer so that said mass member does not come in contact with the internal surfaces of said hole and cover.
A racket for playing tennis or similar ball games comprising
- (a) a frame which has an annular ball hitting part and a bar type stem part having two ends, one end attached to said ball hitting part and the other end having with a grip part thereon,
- (b) a net which is extended across said ball hitting part,
- (c) a hole which is provided on a straight bar part between said grip part and said, ball hitting part of the stem part of said frame and which is open at least at one end,
- (d) an outer casing which is inserted and fixed in said hole, and
- (e) a vibration absorbing member which is accommodated in said outer casing,
- wherein said vibration absorbing member comprises at least one buffer layer of a gel material which is accommodated and fixed to be deformable in said outer casing and at least one mass member for weighing said racket which is supported by said buffer layer so that said mass member does not come in contact with the internal surface of said outer casing.
Dependencies are inferred from the claim text.