Shock absorbing device
View Patent ↗A shock-absorbing device is applied in a ball/racket frame having a plurality of string holes allowing a string to pass, and includes: at least one or more outer tubular member, disposed at a periphery of the ball/racket frame and arranged between the string holes adjacently disposed, wherein two sides and an outer side of the outer tubular member are formed with an adhering surface and an outer tubular wall, and a bottom end of thereof is formed with an adhering part adhered at the periphery of the ball/racket frame; and an inner tubular member, disposed in the outer tubular member along an axial direction and an inner side thereof is formed with an inner tubular wall; accordingly, by providing interferences at different timings and bearing shock waves of a counter shock force generated while a ball being struck via the string, effects of absorbing shock and damping are achieved.
1 . A shock-absorbing device for use with a racket frame having a plurality of string holes, the shock-absorbing device comprising:
at least one or more outer tubular member located on an outer periphery of a racket frame and positioned between two adjacent string holes of the plurality of string holes of the racket;
each outer tubular member of the at least one or more outer tubular member has an adhering part, an outer tubular wall, two adhering surfaces, and an inner tubular member;
the adhering part is located on a bottom of the outer tubular member and adhered to the outer periphery of the racket frame;
the outer tubular wall is a curved surface located on an outer periphery of the outer tubular member and is connected to opposing ends of the adhering part;
the two adhering surfaces define front and rear surfaces of the outer tubular member respectively and are flat surfaces connected to the adhering part and the outer tubular wall; and
the inner tubular member extends through the outer tubular member along an axial direction and has an inner tubular wall;
wherein, when the at least one or more outer tubular member is located on the outer periphery of the racket frame, a string is inserted through a first string hole of the two adjacent string holes of the plurality of string holes of the racket, through the at least one or more outer tubular member, and through a second string hole of the two adjacent string holes of the plurality of string holes of the racket, the at least one or more outer tubular member is spaced apart from the two adjacent string holes of the plurality of string holes of the racket;
wherein, when the at least one or more outer tubular member is located on an outer periphery of the racket frame, the string is prohibited from being in a same horizontal plane, thereby providing interferences at different timings and bearing shock waves of a counter shock force are generated when a ball is struck by the string, and effects of absorbing shock and damping are achieved.
2 . The shock-absorbing device as claimed in claim 1 , wherein the outer tubular member includes a softer medium and a harder medium staggeringly arranged to be integrally formed.
3 . The shock-absorbing device as claimed in claim 1 , wherein a hollow array is formed through being divided between the outer tubular member and the inner tubular member.
4 . The shock-absorbing device as claimed in claim 1 , wherein at least one counterweight capable of achieving an effect of absorbing shock through rotating angles is disposed between a horizontal upper end of the outer tubular member and the inner tubular member and arranged with an angle.
5 . The shock-absorbing device as claimed in claim 1 , wherein the outer tubular wall of the outer tubular member is formed as a patterned surface.
6 . The shock-absorbing device as claimed in claim 1 , wherein the outer tubular wall of the outer tubular member is provided with a plurality of protrusions.
7 . The shock-absorbing device as claimed in claim 1 , wherein the outer tubular member is formed with at least one axially-oriented hole radially arranged at an interval defined between the adhering part and the inner tubular member.
8 . The shock-absorbing device as claimed in claim 1 , wherein the appearance of the outer tubular member is formed in a tubular state or in a left spiral columnar state or in a right spiral columnar state or a spiral columnar structure composed of at least one set of the left spiral columnar state and at least one set of the right spiral columnar state.
9 . The shock-absorbing device as claimed in claim 1 , wherein, when the at least one or more outer tubular member located on an outer periphery of the racket frame, a grommet is located in each string hole and the string passes through a corresponding grommet.