JP4439238B2 - 掘削用切刃 - Google Patents
掘削用切刃 Download PDFInfo
- Publication number
- JP4439238B2 JP4439238B2 JP2003368934A JP2003368934A JP4439238B2 JP 4439238 B2 JP4439238 B2 JP 4439238B2 JP 2003368934 A JP2003368934 A JP 2003368934A JP 2003368934 A JP2003368934 A JP 2003368934A JP 4439238 B2 JP4439238 B2 JP 4439238B2
- Authority
- JP
- Japan
- Prior art keywords
- wear
- hard
- resistant layer
- excavation
- cutting blade
- 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 - Fee Related
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/285—Teeth characterised by the material used
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
一方の面と他方の面との会合部分に掘削刃先を形成する掘削用切刃であって、
前記一方の面には、刃先から先端部における幅方向のほぼ全幅に硬質耐摩耗層が形成されるとともに、両側部を除く中央部に軸線方向に硬質耐摩耗層が形成され、
前記他方の面には、中央部を除く両側部に軸線方向に硬質耐摩耗層が形成されることを特徴とするものである(第1発明)。
2,2A 上面
3,3A 下面
5,5A 刃先部
6 嵌合部
7,7a,7A,7A',8,8',8a,8A 硬質肉盛部
Claims (5)
- 一方の面と他方の面との会合部分に掘削刃先を形成する掘削用切刃であって、
前記一方の面には、刃先から先端部における幅方向のほぼ全幅に硬質耐摩耗層が形成されるとともに、両側部を除く中央部に軸線方向に硬質耐摩耗層が形成され、
前記他方の面には、中央部を除く両側部に軸線方向に硬質耐摩耗層が形成されることを特徴とする掘削用切刃。 - 前記掘削用切刃の肉厚が15mm以上の範囲に前記硬質耐摩耗層が配置されている請求項1に記載の掘削用切刃。
- 前記一方の面に配される硬質耐摩耗層と前記他方の面に配される硬質耐摩耗層とは、前記一方の面の両側部を除く中央部に軸線方向に形成される硬質耐摩耗層の幅方向の端部と、前記他方の面に形成される硬質耐摩耗層の幅方向の中心軸側の端部とが平面的に見て同位置に設けられる請求項1または2に記載の掘削用切刃。
- 前記一方の面に配される硬質耐摩耗層と前記他方の面に配される硬質耐摩耗層とは、前記一方の面の両側部を除く中央部に軸線方向に形成される硬質耐摩耗層の幅方向の端部と、前記他方の面に形成される硬質耐摩耗層の幅方向の中心軸側の端部とが平面的に見て重なり合わないように設けられる請求項1または2に記載の掘削用切刃。
- 前記掘削用切刃の任意の横断面における前記一方の面および前記他方の面に設けられる硬質耐摩耗層の幅の和は、その切刃の幅の50%より大きくされている請求項3または4に記載の掘削用切刃。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003368934A JP4439238B2 (ja) | 2002-12-25 | 2003-10-29 | 掘削用切刃 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002373730 | 2002-12-25 | ||
JP2003368934A JP4439238B2 (ja) | 2002-12-25 | 2003-10-29 | 掘削用切刃 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004218417A JP2004218417A (ja) | 2004-08-05 |
JP4439238B2 true JP4439238B2 (ja) | 2010-03-24 |
Family
ID=32911049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003368934A Expired - Fee Related JP4439238B2 (ja) | 2002-12-25 | 2003-10-29 | 掘削用切刃 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4439238B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100937341B1 (ko) | 2009-10-22 | 2010-01-20 | 주식회사 태강기업 | 크레인그래브의 그래플 투스 |
JP5373169B1 (ja) * | 2012-10-10 | 2013-12-18 | 株式会社小松製作所 | 掘削爪および掘削爪用ボディ |
KR102627470B1 (ko) * | 2016-11-17 | 2024-01-19 | 에이치디현대인프라코어 주식회사 | 건설 기계 버켓 부품 및 이의 제조 방법 |
-
2003
- 2003-10-29 JP JP2003368934A patent/JP4439238B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2004218417A (ja) | 2004-08-05 |
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