JPH0349720Y2 - - Google Patents
Info
- Publication number
- JPH0349720Y2 JPH0349720Y2 JP1985194079U JP19407985U JPH0349720Y2 JP H0349720 Y2 JPH0349720 Y2 JP H0349720Y2 JP 1985194079 U JP1985194079 U JP 1985194079U JP 19407985 U JP19407985 U JP 19407985U JP H0349720 Y2 JPH0349720 Y2 JP H0349720Y2
- Authority
- JP
- Japan
- Prior art keywords
- fitting
- walled cylinder
- elastic
- wood
- fitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002023 wood Substances 0.000 claims description 13
- 239000011162 core material Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 3
- 241000288673 Chiroptera Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） この考案は、安全バツトに関するものである。[Detailed explanation of the idea] (Industrial application field) This invention relates to a safety butt.
（従来技術）
従来の軽金属（アルミ合金）製の金属バツトは
内部が中空、空洞で、何等の補強的部材が内蔵さ
れていない構造であつたため、内部腐蝕なども起
因して最近特に真二つに折れる折損事故が生じ、
それによつて選手の傷害事故が続発するおそれが
あるという由々しい問題を惹起している。また金
属バツトに比べて強度的に弱く、折れ易い木製バ
ツトの場合も勿論、強化オイルを注入するオイル
テンパー加工など技術的な強度品質向上がはから
れているが、折損事故は跡を断たないのが現状で
ある。(Prior art) Conventional metal bats made of light metal (aluminum alloy) were hollow inside and had no built-in reinforcing members. A breakage accident occurred where the
This is causing a serious problem in that there is a risk that injuries to athletes will occur one after another. In addition, wooden bats are weaker than metal bats and tend to break easily.Although efforts have been made to improve the strength and quality of wooden bats, such as oil tempering, which injects reinforced oil, breakage accidents have caused no trace of damage. The current situation is that there is no such thing.
（技術的課題）
そこでこの考案は、金属と木材とを併用すると
ともに、軸心に補強構造を内蔵させてきわめて合
理的な強度性が得られ、折損事故を解消できるよ
うにしたことを技術的課題とする。(Technical Issues) Therefore, this idea uses a combination of metal and wood and incorporates a reinforcing structure in the shaft center to obtain extremely reasonable strength and eliminate breakage accidents. Take it as a challenge.
（技術的手段）
この考案は上記の技術的課題を解決するために
なされたもので、この考案安全バツトを以下図面
実施例について詳しく説明すると、まず１は、例
えば、アルミ合金など軽金属製の外筒で、隔板部
２ａを境として過半先部の薄肉筒２ｂと同基部の
厚肉筒２ｃとからなつている。また３は内孔３ｂ
内に弾性芯材４を挿嵌した木材嵌体で、該木材嵌
体３は上記外筒１の薄肉部２ｂ内に密嵌されてい
る。なお上記木材嵌体３の先端は、内孔３ｂが開
口する断面３ｃを有する凹陥部３ｂが設けられて
いる。そして上記弾性芯材４中心を通る中心軸線
上の芯孔４ａに、スリーブ１１に嵌通した鋼線５
が挿通され、隔板部２ａ及び木材嵌体３の先端凹
陥部３ａの底面３ｃにおいて夫々パツキン座６を
介してナツト７締め固定してある。なお３ｄは木
材嵌体３の芯孔、５ａは鋼線５両端部のねじ部で
ある。そして上記の凹陥部３ａ内には、硬質ゴム
など弾性材料でなる頭栓８が嵌着してある。また
厚肉筒２ｃの基端部には一部の突出部９ａを外部
に突出させて木材製の尾栓９が嵌め込まれてい
る。そして該厚肉筒２ｃの基端部には、硬質ゴム
などでなる弾性握り嵌体１０が上記突出部９ａに
嵌入して嵌着してある。なお弾性芯材４として
は、スポンジなどの弾性材料が用いられる。(Technical means) This invention was made in order to solve the above technical problem, and the safety butt of this invention will be explained in detail below with reference to the drawings. It is a cylinder, and consists of a thin-walled cylinder 2b at the tip and a thick-walled cylinder 2c at the base, with the partition plate part 2a as the boundary. 3 is the inner hole 3b
It is a wood fitting body into which an elastic core material 4 is inserted, and the wood fitting body 3 is tightly fitted into the thin wall portion 2b of the outer cylinder 1. The tip of the wooden fitting 3 is provided with a concave portion 3b having a cross section 3c through which an inner hole 3b opens. A steel wire 5 fitted into the sleeve 11 is inserted into the core hole 4a on the central axis passing through the center of the elastic core material 4.
are inserted through the partition plate portion 2a and the bottom surface 3c of the recessed portion 3a at the tip of the wood fitting 3, respectively, and are secured by tightening nuts 7 via packing seats 6, respectively. Note that 3d is a core hole of the wood fitting 3, and 5a is a threaded portion at both ends of the steel wire 5. A head plug 8 made of an elastic material such as hard rubber is fitted into the recess 3a. Further, a tail plug 9 made of wood is fitted into the base end of the thick-walled cylinder 2c with a part of the protrusion 9a protruding to the outside. An elastic grip fitting body 10 made of hard rubber or the like is fitted into the protrusion 9a at the base end of the thick-walled cylinder 2c. Note that as the elastic core material 4, an elastic material such as sponge is used.
（考案の効果）
この考案の安全バツトは、叙上の構造で、特に
軽金属製外筒１の打球部である過半先部を薄肉筒
２ｂとしてその内部に木材嵌体３を密嵌し、また
逆に基部のグリツプ部は内部中空の厚肉部２ｃと
した軽金属材と木材とを巧みに併用したもので、
両素材の長所が十分に生かされ、秀れた合理的な
強度が得られるものであるとともに、打球部分の
軽金属の厚みが従来の金属バツトの約半分で済
み、かつ木材部分が従来の木製バツトに比較して
約2/3の長さで済み、材料資源の節約に著しく寄
与できるなど卓抜した効果がある。(Effects of the invention) The safety bat of this invention has the above-mentioned structure, in particular, the majority tip portion of the light metal outer cylinder 1, which is the ball-hitting part, is made into a thin-walled cylinder 2b, and the wood fitting 3 is tightly fitted therein. On the other hand, the grip part at the base is made of a combination of light metal material and wood, with a thick walled part 2c that is hollow inside.
It takes full advantage of the strengths of both materials and provides excellent and reasonable strength.The thickness of the light metal in the ball striking part is about half that of conventional metal bats, and the wood part is thicker than conventional wooden bats. It is approximately two-thirds the length compared to the original, and has outstanding effects such as contributing significantly to the saving of material resources.
また木材嵌体３内中心に弾性芯材４が挿嵌され
て中心軸線上に鋼線５が補強ステーの機能を果た
すように張設されているから、弾性芯材４が衝撃
を吸収するのと相俟つて、バツトの抗張力及び剪
断強さを著しく増大できるとともに、バツトの二
つ折れ飛散による事故を阻止できるなどの優れた
効果がある。 In addition, since the elastic core material 4 is inserted into the center of the wood fitting 3 and the steel wire 5 is stretched on the central axis so as to function as a reinforcing stay, the elastic core material 4 absorbs shock. Together with this, the tensile strength and shear strength of the bat can be significantly increased, and there are excellent effects such as being able to prevent accidents caused by the bat being bent in half and flying off.
図面は、この考案安全バツトの実施例を示す縦
断面図である。
１……外筒、２ａ……隔板部、２ｂ……薄肉
筒、２ｃ……厚肉筒、３……木材嵌体、３ａ……
凹陥部、３ｂ……内孔、３ｃ……底面、３ｄ……
芯孔、４……弾性芯材、４ａ……芯孔、５……鋼
線、５ａ……ねじ部、６……パツキン座、７……
ナツト、８……頭栓、９……尾栓、９ａ……突出
部、１０……弾性握り嵌体、１１……スリーブ。
The drawing is a longitudinal sectional view showing an embodiment of this invented safety bat. 1... Outer cylinder, 2a... Partition plate portion, 2b... Thin walled cylinder, 2c... Thick walled cylinder, 3... Wood fitting, 3a...
Concave portion, 3b...inner hole, 3c...bottom surface, 3d...
Core hole, 4... Elastic core material, 4a... Core hole, 5... Steel wire, 5a... Threaded portion, 6... Packing seat, 7...
Nut, 8... Head plug, 9... Tail plug, 9a... Projection, 10... Elastic grip fitting, 11... Sleeve.
Claims (1)
部の厚肉筒２ｃからなる軽金属製外筒１の上記薄
肉筒２ｂ内に、弾性芯材４を挿嵌した木材嵌体３
を密嵌し、上記弾性芯材４中心を通る中心軸線上
にスリーブ１１に嵌通した鋼線５を挿通して隔板
部２ａ及び木材嵌体３の先端凹陥部３ａにおいて
夫々パツキン座６を介してナツト７締め固定し、
凹陥部３ａ及び尾栓９を嵌めた厚肉筒２ｃ基端部
に弾性頭栓８及び弾性握り嵌体１０を夫々嵌着し
てなる安全バツト。 A wood fitting 3 in which an elastic core material 4 is inserted into the thin-walled cylinder 2b of a light metal outer cylinder 1 consisting of a thin-walled cylinder 2b at the tip of the majority and a thick-walled cylinder 2c at the base of the partition plate 2a.
The steel wire 5 fitted into the sleeve 11 is inserted on the central axis passing through the center of the elastic core material 4, and the packing seats 6 are inserted into the partition plate part 2a and the tip concave part 3a of the wood fitting 3, respectively. Tighten nut 7 through the
This safety butt is formed by fitting an elastic head plug 8 and an elastic grip fitting 10 into the proximal end of a thick-walled cylinder 2c into which a concave portion 3a and a tail plug 9 are fitted, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985194079U JPH0349720Y2 (en) | 1985-12-17 | 1985-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985194079U JPH0349720Y2 (en) | 1985-12-17 | 1985-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62101570U JPS62101570U (en) | 1987-06-27 |
| JPH0349720Y2 true JPH0349720Y2 (en) | 1991-10-23 |
Family
ID=31150712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985194079U Expired JPH0349720Y2 (en) | 1985-12-17 | 1985-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349720Y2 (en) |
-
1985
- 1985-12-17 JP JP1985194079U patent/JPH0349720Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62101570U (en) | 1987-06-27 |
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