JPS62176285U - - Google Patents
Info
- Publication number
- JPS62176285U JPS62176285U JP6533886U JP6533886U JPS62176285U JP S62176285 U JPS62176285 U JP S62176285U JP 6533886 U JP6533886 U JP 6533886U JP 6533886 U JP6533886 U JP 6533886U JP S62176285 U JPS62176285 U JP S62176285U
- Authority
- JP
- Japan
- Prior art keywords
- rod
- hole
- tip
- straight hole
- bit
- 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
- 238000005553 drilling Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Description
図面は本考案の実施例を示し、第１図は拡孔用
工具の一部破断正面図、第２図は同左側面図、第
３図は同一部破断右側面図、第４図は同底面図、
第５図はコンクリート壁に対するアンカーボルト
の取付手順を例示する作業工程図である。第６図
は他の実施例を示す第１図相当図である。
Ａ，Ａ′……拡孔用工具、１……ロツド、２…
…摺動溝、２ａ……摺接面、３，３′……拡孔ビ
ツト、３ａ，３′ａ……基端部、３ｃ，３′ｃ…
…受圧部、４……抜止めピン、５……刃部、Ｃ，
Ｃ′……ストレート孔、Ｃ１，Ｃ′１……拡孔部
、Ｃ２，Ｃ′２……底面。
The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway front view of the hole drilling tool, Fig. 2 is a left side view of the same, Fig. 3 is a partially cutaway right side view of the same, and Fig. 4 is a bottom view of the same. figure,
FIG. 5 is a work process diagram illustrating the procedure for attaching anchor bolts to a concrete wall. FIG. 6 is a diagram corresponding to FIG. 1 showing another embodiment. A, A'... Hole drilling tool, 1... Rod, 2...
...sliding groove, 2a...sliding surface, 3, 3'...hole expansion bit, 3a, 3'a...base end, 3c, 3'c...
...Pressure receiving part, 4...Retaining pin, 5...Blade part, C,
C'...Straight hole, C1 , C'1 ...Enlarged part, C2 , C'2 ...Bottom surface.
Claims (1)
りも大径の拡孔部を形成する工具であつて、さく
孔装置の駆動により上記ストレート孔内で回転可
能にかつ前後に往復動可能に設けられ、先端部に
、奥底面が略円弧状の摺接面に形成された径方向
に切り欠かれてなる摺動溝を有するロツドと、該
ロツドの摺動溝内にその摺接面に基端部を摺接せ
しめて回動自在に支持され、先端部の一側にスト
レート孔の底面に摺接可能な受圧部を有し、ロツ
ドの前進移動に伴う該受圧部へのストレート孔底
面から反力の作用により先端部がロツドの半径方
向外側の突出するように回動するビツトと、該ビ
ツトの先端部の他側に取り付けられた刃部とを備
えることを特徴とする拡孔用工具。 A tool for forming an enlarged hole with a diameter larger than the hole diameter at the bottom of a straight hole that has been drilled, and is provided so that it can rotate within the straight hole and reciprocate back and forth when driven by a drilling device. , a rod having a sliding groove formed in a radial direction with a substantially circular arc-shaped sliding surface at its distal end, and a proximal end on the sliding surface within the sliding groove of the rod The rod is rotatably supported by making sliding contact with the rod, and has a pressure receiving part on one side of the tip part that can make sliding contact with the bottom of the straight hole. A hole-expanding tool comprising: a bit that rotates so that its tip protrudes outward in the radial direction of the rod under the action of force; and a blade attached to the other side of the tip of the bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6533886U JPS62176285U (en) | 1986-04-30 | 1986-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6533886U JPS62176285U (en) | 1986-04-30 | 1986-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62176285U true JPS62176285U (en) | 1987-11-09 |
Family
ID=30902313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6533886U Pending JPS62176285U (en) | 1986-04-30 | 1986-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62176285U (en) |
-
1986
- 1986-04-30 JP JP6533886U patent/JPS62176285U/ja active Pending