JP2000192493A - Scoop and shovel - Google Patents
Scoop and shovelInfo
- Publication number
- JP2000192493A JP2000192493A JP10332154A JP33215498A JP2000192493A JP 2000192493 A JP2000192493 A JP 2000192493A JP 10332154 A JP10332154 A JP 10332154A JP 33215498 A JP33215498 A JP 33215498A JP 2000192493 A JP2000192493 A JP 2000192493A
- Authority
- JP
- Japan
- Prior art keywords
- scoop
- shovel
- layer
- steel
- inner layer
- 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.)
- Pending
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はスコップ又はシャベ
ルに関する。TECHNICAL FIELD The present invention relates to a scoop or shovel.
【０００２】[0002]
【従来の技術】従来のスコップ及びシャベルは、材質が
単一層の鋼板よりなり、掬い面は滑らかな面となってい
る。2. Description of the Related Art Conventional scoops and shovels are made of a single-layer steel plate, and the scooping surface is a smooth surface.
【０００３】[0003]
【発明が解決しようとする課題】スコップ及びシャベル
には耐磨耗性性が要求され、耐磨耗性を向上させるには
硬度を上げることが必要である。従来のスコップ及びシ
ャベルは、単一層の鋼板よりなるので、表面の硬度を上
げるために急冷による焼入れをした場合、割れが発生し
易く脆くなるため、硬度アップに限界があった。A scoop and a shovel are required to have abrasion resistance, and it is necessary to increase hardness in order to improve the abrasion resistance. Conventional scoops and shovels are made of a single-layer steel plate, and when quenched by quenching to increase the hardness of the surface, cracks are liable to occur and the brittleness becomes brittle.
【０００４】また掬い面は滑らかな面となっているの
で、土等が掬い面に付着し易い。この問題を解決したも
のとして、例えば実開平５−４２３３７号公報に示すよ
うに、先端より一定距離離れた掬い面の位置に突起を設
けたスコップ又はシャベルが知られている。[0004] Further, since the scooping surface is a smooth surface, soil and the like easily adhere to the scooping surface. As a solution to this problem, for example, as disclosed in Japanese Utility Model Laid-Open No. 5-42337, a scoop or shovel having a projection at a position on a scooping surface at a predetermined distance from a tip is known.
【０００５】本発明の課題は、割れや変形が起こりにく
いスコップ又はシャベルを提供することにある。An object of the present invention is to provide a scoop or shovel that is less likely to crack or deform.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
の本発明の第１の手段は、材質が３層グラッド鋼よりな
るスコップ又はシャベルであって、前記３層グラッド鋼
は、外層が炭素０．６０〜０．８９ｗｔ％でかつグラッ
ド比５〜１９ｗｔ％であり、内層が炭素０．１０ｗｔ％
以下でかつグラッド比２０〜８９ｗｔ％よりなることを
特徴とする。According to a first aspect of the present invention, there is provided a scoop or shovel made of a three-layered glazed steel, wherein the outer layer of the ladder is made of carbon. 0.60 to 0.89 wt%, the ratio of the grad is 5 to 19 wt%, and the inner layer is carbon 0.10 wt%.
And a grading ratio of 20 to 89 wt%.
【０００７】上記課題を解決するための本発明の第２の
手段は、上記第１の手段において、先端より一定距離離
れた掬い面の位置に突起を設けたことを特徴とする。A second means of the present invention for solving the above-mentioned problem is characterized in that, in the first means, a projection is provided at a position of a scooping surface at a predetermined distance from a tip.
【０００８】[0008]
【発明の実施の形態】本発明の一実施の形態について説
明する。スコップ及びシャベルを３層グラッド鋼により
製作した。この３層グラッド鋼は、外層が炭素０．６０
〜０．８９ｗｔ％でかつグラッド比５〜１９ｗｔ％であ
り、内層が炭素０．１０ｗｔ％以下でかつグラッド比２
０〜８９ｗｔ％よりなっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described. Scoops and shovels were made of three-layered graded steel. This three-layered graded steel has an outer layer of carbon 0.60
0.89 wt% and a grading ratio of 5 to 19 wt%, and the inner layer has a carbon content of 0.10 wt% or less and a grading ratio of 2
0 to 89 wt%.
【０００９】ここで、外層が炭素０．６０〜０．８９ｗ
ｔ％でかつグラッド比５〜１９ｗｔ％としたのは、これ
らの成分がグラッド鋼の場合、最も土離れ性及び耐磨耗
性が良く、またグラッド比も５ｗｔ％未満では耐久性が
悪く、２０ｗｔ％以上では内部の靭性が不足する。この
成分系のグラッド比を使用した場合は、熱間圧延のまま
でも使用は可能であるが、熱処理をすれば、更に良い耐
磨耗性性を持たせることができる。Here, the outer layer has a carbon content of 0.60 to 0.89 watts.
The reason why the ratio is 5% by weight and the grading ratio is 5 to 19% by weight is that when these components are grad steel, the soil removal property and the wear resistance are the best, and when the grading ratio is less than 5% by weight, the durability is poor. %, The internal toughness is insufficient. When this component-based grading ratio is used, it can be used as it is in hot rolling, but if heat treatment is performed, better wear resistance can be imparted.
【００１０】このような３層グラッド鋼を使用した場
合、内層（内部）は軟鋼のため、焼入れが可能であり、
かつ外層（表面）は硬く、内部が軟らかくて靭性があ
り、割れや変形が起こりにくい。一実施例として表１の
成分系のグラッド鋼でスコップ及びシャベルを製作した
ところ、非常に良好な結果が得られた。なお、表１にお
ける単位は、ｗｔ％である。When such a three-layered graded steel is used, the inner layer (inside) can be hardened because it is mild steel.
In addition, the outer layer (surface) is hard, the inside is soft and tough, and cracking and deformation are unlikely to occur. As an example, when a scoop and a shovel were made from the graded steel of the composition shown in Table 1, very good results were obtained. The unit in Table 1 is wt%.
【表１】 [Table 1]
【００１１】なお、本実施の形態は、実開平５−４２３
３７号公報に示すように、先端より一定距離離れた掬い
面の位置に突起を設けたものに限定されるものではな
い。しかし、実開平５−４２３３７号公報に示すように
突起を設けたものに適用すると、土離れ性及び耐磨耗性
も更に向上する。The present embodiment is described in Japanese Utility Model Laid-Open No. 5-423.
As shown in Japanese Patent Publication No. 37, the invention is not limited to the one in which the projection is provided at the position of the scooping surface at a predetermined distance from the tip. However, when the present invention is applied to the one provided with a projection as disclosed in Japanese Utility Model Laid-Open No. 5-42337, soil removal and abrasion resistance are further improved.
【００１２】[0012]
【発明の効果】本発明によれば、材質が３層グラッド鋼
よりなるスコップ又はシャベルであって、前記３層グラ
ッド鋼は、外層が炭素０．６０〜０．８９ｗｔ％でかつ
グラッド比５〜１９ｗｔ％であり、内層が炭素０．１０
ｗｔ％以下でかつグラッド比２０〜８９ｗｔ％よりなる
ので、割れや変形が起こりにくい。According to the present invention, there is provided a scoop or shovel made of a three-layered grading steel, wherein the outer layer has a carbon content of 0.60 to 0.89 wt% and a grading ratio of 5 to 5%. 19 wt%, and the inner layer is carbon 0.10
Since it is not more than wt% and has a grading ratio of 20 to 89 wt%, cracking and deformation hardly occur.
Claims (2)
又はシャベルであって、前記３層グラッド鋼は、外層が
炭素０．６０〜０．８９ｗｔ％でかつグラッド比５〜１
９ｗｔ％であり、内層が炭素０．１０ｗｔ％以下でかつ
グラッド比２０〜８９ｗｔ％よりなることを特徴とする
スコップ又はシャベル。1. A scoop or shovel made of three-layered grading steel, wherein the outer layer of the three-layered grading steel has a carbon content of 0.60 to 0.89 wt% and a grading ratio of 5-1.
A scoop or shovel, wherein the scoop or the shovel is 9 wt%, the inner layer is 0.10 wt% or less carbon, and the cladding ratio is 20 to 89 wt%.
突起を設けたことを特徴とする請求項１記載のスコップ
又はシャベル。2. The scoop or shovel according to claim 1, wherein a projection is provided at a position on the scooping surface at a predetermined distance from the tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10332154A JP2000192493A (en) | 1998-11-24 | 1998-11-24 | Scoop and shovel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10332154A JP2000192493A (en) | 1998-11-24 | 1998-11-24 | Scoop and shovel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000192493A true JP2000192493A (en) | 2000-07-11 |
Family
ID=18251764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10332154A Pending JP2000192493A (en) | 1998-11-24 | 1998-11-24 | Scoop and shovel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000192493A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005320758A (en) * | 2004-05-10 | 2005-11-17 | Nikko Co Ltd | Shovel scoop |
| US20100323216A1 (en) * | 2007-05-10 | 2010-12-23 | Thyssenkrupp Steel Europe Ag | Multi-layered composite part made of steel having optimized paint adhesion |
| US20110111252A1 (en) * | 2008-05-07 | 2011-05-12 | Thyssenkrupp Steel Europe Ag | Use of a Metal Composite Material in a Vehicle Structure |
-
1998
- 1998-11-24 JP JP10332154A patent/JP2000192493A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005320758A (en) * | 2004-05-10 | 2005-11-17 | Nikko Co Ltd | Shovel scoop |
| US20100323216A1 (en) * | 2007-05-10 | 2010-12-23 | Thyssenkrupp Steel Europe Ag | Multi-layered composite part made of steel having optimized paint adhesion |
| US8221898B2 (en) * | 2007-05-10 | 2012-07-17 | Thyssenkrupp Steel Europe Ag | Multi-layered composite part made of steel having optimized paint adhesion |
| US20110111252A1 (en) * | 2008-05-07 | 2011-05-12 | Thyssenkrupp Steel Europe Ag | Use of a Metal Composite Material in a Vehicle Structure |
| US8535813B2 (en) * | 2008-05-07 | 2013-09-17 | Thyssenkrupp Steel Europe Ag | Use of a metal composite material in a vehicle structure |
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