IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0404604
(2009-03-16)
|
| 등록번호 |
US7980970
(2011-07-06)
|
| 우선권정보 |
JP-2008-2008-123266(2008-05-09) |
|
발명자
/ 주소 |
- Watari, Makoto
- Shimohira, Katsumi
- Nagashima, Shuichi
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
7 인용 특허 :
14 |
초록
▼
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
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 larger than the interior diameter of the second tube, the second tube is arranged on 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.
대표청구항
▼
What is claimed is: 1. A bat for baseball or softball comprising:a first tube being formed from one of aluminum, an aluminum-alloy, an aluminum-scandium alloy, a scandium alloy, an alloy steel, FRP or synthetic resin and having a grip part, a taper part, an impact part, a tip part, a step part havin
What is claimed is: 1. A bat for baseball or softball comprising:a first tube being formed from one of aluminum, an aluminum-alloy, an aluminum-scandium alloy, a scandium alloy, an alloy steel, FRP or synthetic resin and 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 cylindrical second tube being formed from one of titanium, a titanium alloy, a magnesium alloy, an alloy steel, FRP, aluminum, an aluminum-alloy, an aluminum-scandium alloy or a scandium alloy and having two ends which are open, and having an interior diameter which is 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;a fixing component including a body part and an insertion part, said insertion part being inserted between said first tube and said second tube, said fixing component latching said second tube to an exterior periphery of said first tube; anda crevice located between said first tube and said second tube, said 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 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.
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