JPS55112707A - Hammer drill - Google Patents
Hammer drillInfo
- Publication number
- JPS55112707A JPS55112707A JP1769379A JP1769379A JPS55112707A JP S55112707 A JPS55112707 A JP S55112707A JP 1769379 A JP1769379 A JP 1769379A JP 1769379 A JP1769379 A JP 1769379A JP S55112707 A JPS55112707 A JP S55112707A
- Authority
- JP
- Japan
- Prior art keywords
- rotation
- cylinder
- holder
- cutter
- striker
- 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
- Drilling And Boring (AREA)
Abstract
PURPOSE: To obtain rotation drilling of a hammer drill without exchanging a cutter or cutter holder by giving rotary displacement simply to a sleeve-shaped member equipped in a cylinder case.
CONSTITUTION: A cylinder 15, a shut holder 16, and a slide shaft 19 are rotated by the rotation of a driving pinion 4 through gear devices 5, 6, 10, and 12 for rotating a cutter holder 20. Meanwhile, a piston 27 in a cylinder 15 is reciprocated by the rotation of a crank shaft 22, and a striker 43 is reciprocated through an air chamber. In the reciprocation of the striker 43, a stroke toward the slide shaft 19 of the holder 20 is limited by pressure escape holes 15a, and 15b on the cylinder 15, and only the rotation for rotation drilling is transmitted to the cutter holder 20.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1769379A JPS55112707A (en) | 1979-02-16 | 1979-02-16 | Hammer drill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1769379A JPS55112707A (en) | 1979-02-16 | 1979-02-16 | Hammer drill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55112707A true JPS55112707A (en) | 1980-08-30 |
Family
ID=11950885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1769379A Pending JPS55112707A (en) | 1979-02-16 | 1979-02-16 | Hammer drill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55112707A (en) |
-
1979
- 1979-02-16 JP JP1769379A patent/JPS55112707A/en active Pending
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