JP4927915B2 - 棒手裏剣 - Google Patents
棒手裏剣 Download PDFInfo
- Publication number
- JP4927915B2 JP4927915B2 JP2009187727A JP2009187727A JP4927915B2 JP 4927915 B2 JP4927915 B2 JP 4927915B2 JP 2009187727 A JP2009187727 A JP 2009187727A JP 2009187727 A JP2009187727 A JP 2009187727A JP 4927915 B2 JP4927915 B2 JP 4927915B2
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- Japan
- Prior art keywords
- center
- gravity
- sword
- marker
- shaft
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Description
射程距離を長くし命中率を高めるため、本剣は鉄、亜鉛、真鍮などの重い金属材料から成る鏃1と竹木、ジュラルミン、合成樹脂、グラスファイバーなどの比較的軽い材料から成る円筒状のシャフト2が、接合部3でネジで組み合わされ、または、接着剤で接着され、または、一体形成されて、剣の重心(G)または重心(G)のマーカー4の位置が、鏃の切っ先部分1−1のみの重心(g)または重心(g)のマーカー5からシャフト末尾2−2までの長さを100とし、同位置から剣の重心(G)または重心(G)のマーカー4までの距離が、対する比として17から23となる特定する徒手初速の差の発生を見込んだ数値の範囲の距離にある構造とした。
滑り止めとしては凹凸、ざら目やシボ模様とするのが良い。
1−1鏃の切っ先部分
1−2鏃の柄の部分
1−3鏃の柄の部分の表面
1−4鏃の切っ先部分(自由線)
1−5扁平な鏃の先端
2 シャフト
2−1シャフト表面(滑り止め)
2−2シャフト末尾
3 接合部
3−1継ぎ目
4 手裏剣全体の重心(G)、又は、重心(G)のマーカー
5 鏃の切っ先部分の重心(g)、又は、重心(g)のマーカー
6 鏃の接合部で埋設されて見えない部分
7 人差し指の第一関節の指ノ腹の中央
8 中指の第二関節の指の腹
9 親指の第一関節の指の腹
10 親指の第三関節裏側に当たる肉丘
11 方向線
12 中心線
Claims (1)
- 重金属材料から成る鏃1と軽材料から成る円筒状シャフト2が、接合部3でネジで組み合わされまたは一体形成されて、重心(G)または重心(G)のマーカー4が、鏃の切っ先部分のみの重心(g)または重心(g)のマーカー5の位置からシャフト末尾2−2までの長さを100とし、同位置から剣の重心(G)または重心(G)のマーカー4までの距離が、対する比として17から23となる特定した数値の範囲にあり、鏃の柄部分1−2とシャフトの表面2−1に滑り止めのある棒手裏剣。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009187727A JP4927915B2 (ja) | 2009-08-13 | 2009-08-13 | 棒手裏剣 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009187727A JP4927915B2 (ja) | 2009-08-13 | 2009-08-13 | 棒手裏剣 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011036493A JP2011036493A (ja) | 2011-02-24 |
JP4927915B2 true JP4927915B2 (ja) | 2012-05-09 |
Family
ID=43764918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009187727A Expired - Fee Related JP4927915B2 (ja) | 2009-08-13 | 2009-08-13 | 棒手裏剣 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4927915B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6516347B1 (ja) | 2018-11-30 | 2019-05-22 | 崇 荒木 | ゲーム装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2138873B1 (es) * | 1994-12-15 | 2000-09-16 | Tovar Riestra Francisco | Proyectiles manual lanzables giroscopicos, de eje longitudinal y accionamiento interno. |
US6108911A (en) * | 1999-07-09 | 2000-08-29 | Hoch; Clyde D. | Hand propelled throwing projectile |
-
2009
- 2009-08-13 JP JP2009187727A patent/JP4927915B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2011036493A (ja) | 2011-02-24 |
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