Bat for baseball or softball

Abstract

A bat for baseball or softball of the present invention includes a first tube having an impact part, a step part and a stopper part, a cylindrical second tube, a fixing component being inserted between the first tube and second tube, the step part having an exterior diameter larger than that of the impact part and smaller than an interior diameter of the second tube, the stopper part having an exterior diameter larger than that of the step part and large than the interior diameter of the second tube, the second tube is held of an exterior periphery of the impact part, one end of the second tube is fixed between the stopper part and the step part by an adhesive and the other end is fixed by an adhesive on the fixing component, and a crevice is formed between the first tube and the second tube.

1 . A bat for baseball or softball comprising:
 a first tube having a grip part, a taper part, an impact part and a tip part, a step part having a larger exterior diameter than an exterior diameter of said impact part, a first stopper part having a larger exterior diameter than an exterior diameter of said step part and said first tube also including a second stopper part having a larger exterior diameter than said exterior diameter of said first stopper part;   a cylindrical second tube having two ends which are open, and having an interior diameter which is larger an exterior diameter of said step part of said first tube and smaller than said exterior diameter of said first stopper part of said first tube;   a cylindrical third tube having two ends which are open, and also having an interior diameter which is larger than an exterior diameter of said second tube and smaller than said exterior diameter of said second stopper part of said first tube;   a fixing component including a body part, an insertion part and a fixing component stopper part, said insertion part being inserted between said first tube and said second tube, and said fixing component stopper part which forms a crevice between said second tube and said third tube, said fixing component latching said second tube and said third tube to an exterior periphery of said first tube;   a first crevice located between said second tube and said first tube, said first crevice being formed by said second tube being attached to an exterior periphery of said impact part of said first tube, one end of said second tube being fixed between said step part of said first tube and said first stopper part by an adhesive, and the other end of said second tube being fixed by said adhesive with said insertion part of said fixing component, said fixing component being inserted between said second tube and said first tube; and   a second crevice located between said third tube and said second tube, said second crevice being formed by said third tube being attached to an exterior periphery of said second tube, one end of said third tube being fixed between said first stopper part of said first tube and said second stopper part by said adhesive and the other end of said third tube being fixed by said adhesive with said fixing component stopper part of said fixing component.   
     
     
         2 . The bat for baseball or softball according to  claim 1 , further comprising a cap, said cap having a cap tip part, a recessed part and a fixing part, a tip of said tip part of said first tube having a curled part which curves inwards, and an exterior diameter of said fixing part of said cap being smaller than an interior diameter of said first tube from said curled part to said second stopper part, and an exterior diameter of said recessed part of said cap being smaller than an interior diameter of said curled part of said first tube and said recessed part being latched by said curled part. 
     
     
         3 . The bat for baseball or softball according to  claim 1 , wherein a tip of said tip part curves inwards and is closed. 
     
     
         4 . The bat for baseball or softball according to  claim 1 , further comprising a spacer, said spacer being inserted between said first tube and said second tube and also between said second tube and said third tube, said first tube includes a first stopper part having an exterior diameter which is larger than an interior diameter of said second tube and which is smaller than an interior diameter of said third tube, and also includes a second stopper part having an exterior diameter which is larger than said exterior diameter of said first stopper part and which is larger than said interior diameter of said third tube, said second tube is attached to an exterior periphery of said impact part of said first tube, and one end of said second tube is fixed to a tip of a first stopper part side of said impact part of said first tube by said adhesive and said spacer, and the other end of said second tube being fixed by said adhesive with said insertion part of said fixing component, and said first crevice being formed between said second tube and said first second tube, and said third tube is attached to an exterior periphery of said second tube, and one end of said third tube is fixed between said first stopper part and said second stopper part by said adhesive and said spacer, and the other end of said third tube being fixed by said adhesive with said fixing component first stopper part of said fixing component, and said second crevice being formed between said third tube and said second tube. 
     
     
         5 . The bat for baseball or softball according to  claim 2 , wherein said first tube includes a groove in a place of a taper part side of said impact part, said fixing component further having a protrusion part on a side in which said insertion part faces said first tube, said fixing component being inserted between said first tube and said second tube, and also between said second tube and said third tube, and said protrusion part being fitted with said groove of said first tube. 
     
     
         6 . The bat for baseball or softball according to  claim 5 , wherein said first tube is formed from an aluminum alloy or an alloy steel and one of either said second tube or said third tube is formed from titanium, a titanium alloy, a magnesium alloy or an alloy steel. 
     
     
         7 . A bat for baseball or softball comprising:
 a first tube having a grip part, a taper part, an impact part, a tip part, a step part having a larger exterior diameter than an exterior diameter of said impact part and said first tube also including a stopper part having a larger exterior diameter than said exterior diameter of said step part;   a plurality of cylindrical second tubes each having two ends respectively, said ends being open, and each of the plurality of second tubes having an interior diameter and an exterior diameter which are the same respectively, said interior diameter of each of the plurality of second tubes being larger than said exterior diameter of said step part of said first tube and smaller than said exterior diameter of said stopper part of said first tube, and at least one of said plurality of second tubes being formed from a material which is different to the other tubes;   a first fixing component including a body part and an insertion part, said insertion part being inserted between said first tube and said second tube, said first fixing component latching said second tube to an exterior periphery of said first tube;   a second fixing component latching said plurality of second tubes to said exterior periphery of said first tube; and   a crevice located between said first tube and said plurality of second tubes, said crevice being formed by each of said plurality of second tubes being attached to the exterior periphery of said impact part of said first tube, an end of one of said plurality of second tubes being fixed between said step part of said first tube and said stopper part by an adhesive, the other end of one of said plurality of second tubes being fixed by said adhesive with said second fixing component, an end of another one of said plurality of second tubes being fixed by said adhesive with said second fixing component, the other end of another one of said plurality of second tubes being fixed by said adhesive with said first fixing component, and both ends of yet another one or more second tubes of said plurality of second tubes being fixed by said adhesive with said second fixing component.   
     
     
         8 . The bat for baseball or softball according to  claim 7 , further comprising a cap, said cap having a cap tip part, a recessed part and a fixing part, a tip of said tip part of said first tube having a curled part which curves inwards, and an exterior diameter of said fixing part of said cap being smaller than an interior diameter of said first tube from said curled part to said stopper part, and an exterior diameter of said recessed part of said cap being smaller than an interior diameter of said curled part of said first tube and said recessed part being latched by said curled part. 
     
     
         9 . The bat for baseball or softball according to  claim 7 , wherein a tip of said tip part curves inwards and is closed. 
     
     
         10 . The bat for baseball or softball according to  claim 7 , further comprising a spacer, said spacer being inserted between said first tube and one of said plurality of said second tubes, said first tube includes only a stopper part having a larger exterior diameter than an exterior diameter of said impact part and a larger exterior diameter than an interior diameter of each of said plurality of second tubes, and each of said plurality of second tubes is attached to an exterior periphery of said impact part of said first tube respectively, wherein a crevice being formed between said first tube and said plurality of second tubes, by an end of one of said plurality of second tubes being fixed between said step part of said first tube and said stopper part by an adhesive and a spacer, the other end of one of said plurality of second tubes being fixed by said adhesive with said second fixing component, and an end of another one of said plurality of second tubes being fixed by said adhesive with said second fixing component, the other end of another one of said plurality of second tubes being fixed by said adhesive with said first fixing component, and both ends of yet another one or more second tubes of said plurality of second tubes being fixed by said adhesive with said second fixing component. 
     
     
         11 . The bat for baseball or softball according to  claim 8 , wherein said first tube includes a groove in a place of a taper part side of said impact part, said fixing component further having a protrusion part on a side in which said insertion part faces said first tube, said fixing component being inserted between said first tube and one of said plurality of second tubes, and said protrusion part being fitted with said groove of said first tube. 
     
     
         12 . The bat for baseball or softball according to  claim 11 , wherein said first tube is formed from an aluminum alloy or an alloy steel and at least one of said plurality of second tubes is formed from titanium, a titanium alloy, a magnesium alloy or an alloy steel.