JPS6029431Y2 - Tool holding bracket - Google Patents
Tool holding bracketInfo
- Publication number
- JPS6029431Y2 JPS6029431Y2 JP11911481U JP11911481U JPS6029431Y2 JP S6029431 Y2 JPS6029431 Y2 JP S6029431Y2 JP 11911481 U JP11911481 U JP 11911481U JP 11911481 U JP11911481 U JP 11911481U JP S6029431 Y2 JPS6029431 Y2 JP S6029431Y2
- Authority
- JP
- Japan
- Prior art keywords
- tool
- tool holding
- holding bracket
- hard layer
- impact
- 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
Landscapes
- Road Repair (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
【考案の詳細な説明】
本考案は電気ハンマー等の衝撃工具の先端工具（以下工
具と呼ぶ）を保持する金具の摩耗防止に関するものであ
る。[Detailed Description of the Invention] The present invention relates to the prevention of wear of a metal fitting that holds a tip tool (hereinafter referred to as a tool) of an impact tool such as an electric hammer.
従来の電気ハンマーの工具保持としては、工具に設けた
溝と本体に設けた工具保持部のＵ字穴あるいは、係止ピ
ンによって機体から飛び出す工具の脱落防止と、工具を
被加工材から引きはずす機能を有している。Conventional electric hammers hold tools by using a groove in the tool, a U-shaped hole in the tool holding part in the main body, or a locking pin to prevent the tool from falling out of the machine, and to remove the tool from the workpiece. It has a function.
従って工具保持具は工具の繰り返しの衝突と引きはずす
力に耐える強度を有している必要がある。Therefore, the tool holder must have the strength to withstand repeated collisions and forces of the tool.
しかし作業時のコンクリート粉、衝突時の繰り返し応力
と引きはずす力により、時間がたつにつれて摩耗して、
工具の機体からの脱落という現象が出る。However, it wears out over time due to concrete powder during work, repeated stress during collisions, and pulling force.
A phenomenon occurs in which the tool falls off the machine.
本考案の目的は、上記した工具保持金具の摩耗を少なく
して、この種の工具保持部の寿命を長くすることである
。An object of the present invention is to reduce the wear of the above-mentioned tool holder and to extend the life of this type of tool holder.
本考案は、摩耗に対して表面の硬さが重要な要素である
ことに着目し、表面に硬質層の付加について工夫したも
のである。The present invention focuses on the fact that surface hardness is an important factor in preventing wear, and devises the addition of a hard layer to the surface.
第１，２図は先端工具１に衝撃を与え、被加工物をこわ
す電気ハンマーの工具保持部である。Figures 1 and 2 show a tool holding part of an electric hammer that applies an impact to the tip tool 1 and breaks the workpiece.
第３図は硬質層４を付加した工具保持金具３である。FIG. 3 shows a tool holding fitting 3 with a hard layer 4 added thereto.
工具保持金具３には硬質層として硬質クロムメッキを付
加しである。Hard chrome plating is added to the tool holding fitting 3 as a hard layer.
以上のような構成において、硬質クロムメッキの表面硬
度は、ビッカース硬さで的１０００の硬さをもっている
。In the above configuration, the surface hardness of the hard chromium plating has a Vickers hardness of 1000.
従来のものは、ビッカース硬さで約８００である。The conventional one has a Vickers hardness of about 800.
以上のように硬質クロムメッキを付加することにより、
高硬度の硬質層が提供される。By adding hard chrome plating as described above,
A hard layer of high hardness is provided.
よって工具保持金具の摩耗が少なくなり、長寿命の打撃
工具が具現される。Therefore, wear of the tool holding fitting is reduced, and a long-life impact tool is realized.
又、硬質層として化学ニッケルメッキでも同様な効果は
得られる。Similar effects can also be obtained by chemical nickel plating as the hard layer.
本考案によれば、工具保持金具の表面に硬質層を付加し
たので、摩耗が少なくなり工具保持部の長寿命化が計れ
る。According to the present invention, since a hard layer is added to the surface of the tool holder, wear is reduced and the life of the tool holder can be extended.
第１図は本考案による電気ハンマーの工具保持部の正面
図、第２図は第１図の■−■線断面図である。
第３図は硬質層を付加した工具保持金具で一部縦断側面
図である。
図において１は先端工具、２はフロントカバ、３は工具
保持金具、４は硬質層である。FIG. 1 is a front view of a tool holder of an electric hammer according to the present invention, and FIG. 2 is a cross-sectional view taken along the line ■--■ in FIG. FIG. 3 is a partially longitudinal side view of a tool holding fitting with a hard layer added thereto. In the figure, 1 is a tip tool, 2 is a front cover, 3 is a tool holder, and 4 is a hard layer.
Claims (1)
有する打撃工具において、工具の抜は止めを行なう金具
の表面に、異種金属の硬化層を付加したことを特徴とす
る工具保持金具。A tool holder, characterized in that a hardened layer of a different metal is added to the surface of the metal fitting that prevents the tool from being pulled out, in an impact tool having a tool holding part that applies an impact to the tip tool and breaks the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11911481U JPS6029431Y2 (en) | 1981-08-10 | 1981-08-10 | Tool holding bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11911481U JPS6029431Y2 (en) | 1981-08-10 | 1981-08-10 | Tool holding bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5827082U JPS5827082U (en) | 1983-02-21 |
| JPS6029431Y2 true JPS6029431Y2 (en) | 1985-09-05 |
Family
ID=29913195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11911481U Expired JPS6029431Y2 (en) | 1981-08-10 | 1981-08-10 | Tool holding bracket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6029431Y2 (en) |
-
1981
- 1981-08-10 JP JP11911481U patent/JPS6029431Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5827082U (en) | 1983-02-21 |
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