Bat used for baseball or softball

1. A bat used for baseball or softball comprising;

a bat body including a grip part, a taper part and a first tube and having at least one or more interlocking grooves;

a cylindrical second tube having two ends, the inner diameter of said cylindrical second tube being larger than the diameter of said first tube of said bat body, said second tube is placed on the outer circumference of said first tube of said bat body; and

a fixing component including a first fixing component and a second fixing component which latches said second tube to said bat body so that a gap from 0.1 mm to 3.0 mm is formed between said second tube and said bat body so that said second tube bends inwards and contacts with said first tube when a ball is hit, said fixing component performing the role of a support point when said second tube bends inwards when a ball is hit, wherein said at least one or more interlocking grooves interlock with said fixing component and one of said interlocking grooves is formed at a predetermined position close to an end of an outer surface side of said bat body.

2. The bat for baseball or softball according to claim 1 , wherein said first tube of said bat body is formed by narrowing so that the outer diameter of said first tube becomes smaller than the widest outer diameter of a taper part.

3. The bat for baseball or softball according to claim 1 , wherein said bat body and said second tube are each formed separately by metal, and each are separately heat treated and both latched using said fixing component.

4. The bat for baseball or softball according to claim 1 , further comprising a cap formed separately from a bat body.

5. The bat for baseball or softball according to claim 1 , wherein a part of said first fixing component is a cap for capping a tip side of said bat body.

6. The bat for baseball or softball according to claim 1 , wherein said second tube has at least one or more interlocking grooves which interlock with said fixing component.

7. The bat for baseball or softball according to claim 1 , wherein said bat body and said second tube are joined using an adhesive via said fixing component and latched.

8. The bat for baseball or softball according to claim 1 , wherein said second fixing component has a ring shape with a larger inside diameter than the outer diameter of said first tube.

9. A bat used for baseball or softball comprising:

a bat body including a grip part, a taper part and a first tube;

a fixing component including a first fixing component, a second fixing component and a third fixing component and having at least one or more interlocking grooves; and

a plurality of cylindrical second tubes each having two open ends, the inner diameters of said plurality of cylindrical second tubes being larger than the diameter of said first tube of said bat body; at least one of said plurality of cylindrical second tubes being formed from a different material to those of the other cylindrical second tubes, said plurality of cylindrical second tubes being placed on the outer circumference of said first tube of said bat body and being latched so that gaps are formed between said bat body and said plurality of cylindrical second tubes via said first fixing component, said second fixing component and said third fixing component, wherein said bat body has at least one or more interlocking grooves which interlock with said fixing component and one of said interlocking grooves is formed at a predetermined position close to an end of an outer surface side of said bat body.

10. The bat used for baseball or softball according to claim 9 , wherein said first tube of said bat body is formed by narrowing so that the outer diameter of said first tube becomes smaller than the widest outer diameter of said taper part.

11. The bat used for baseball or softball according to claim 9 , wherein said bat body and said second tubes are each formed separately by metal and each are separately heat treated and latched using said fixing component.

12. The bat used for baseball or softball according to claim 9 , further comprising a cap formed separately from said bat body.

13. The bat used for baseball or softball according to claim 9 , wherein a part of said first fixing component is a cap for capping a tip side of said bat body.

14. The bat used for baseball or softball according to claim 9 , wherein said second tubes have at least one or more interlocking grooves which interlock with said fixing component.

15. The bat used for baseball or softball according to claim 9 , wherein said bat body and said second tube are joined using an adhesive via said fixing component and latched.

16. The bat used for baseball or softball according to claim 9 , wherein said bat body is formed with an aluminum alloy or alloy steel, wherein said plurality of cylindrical second tubes are formed by either an aluminum alloy, an alloy steel, a titanium alloy, a magnesium alloy, a phosphor bronze, a copper alloy, a gold alloy, or a platinum alloy, respectively; and wherein one of said plurality of cylindrical second tubes is formed with a material in which a rebounding characteristic of said one of said plurality of cylindrical second tubes excels the rebounding characteristics of said other cylindrical second tubes.

17. The bat for baseball or softball according to claim 1 , wherein said first fixing component has a protrusion part which is interlocked with said one or more of interlocking grooves and said protrusion part and said one or more of interlocking grooves are interlocked so that said first fixing component is strongly latched with said bat body.

18. The bat for baseball or softball according to claim 9 , wherein said first fixing component has a protrusion part which is interlocked with said one or more of interlocking grooves and said protrusion part and said one or more of interlocking grooves are interlocked so that said first fixing component is strongly latched with said bat body.