JPH01138640U - - Google Patents
Info
- Publication number
- JPH01138640U JPH01138640U JP3383388U JP3383388U JPH01138640U JP H01138640 U JPH01138640 U JP H01138640U JP 3383388 U JP3383388 U JP 3383388U JP 3383388 U JP3383388 U JP 3383388U JP H01138640 U JPH01138640 U JP H01138640U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- cooling device
- solenoid valve
- supply source
- air
- 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
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
Description
第１図は本考案に係る電動ドリルのビツト冷却
装置の断面図、第２図は上記ビツト冷却装置の回
路図であり、第３図は従来のビツト冷却装置の断
面図である。
符号Ａ……電動ドリル、４……ビツト、５……
ドリル作動スイツチ、７……エア供給源、８……
エア通路、９……電磁弁。
FIG. 1 is a sectional view of a bit cooling device for an electric drill according to the present invention, FIG. 2 is a circuit diagram of the bit cooling device, and FIG. 3 is a sectional view of a conventional bit cooling device. Code A...Electric drill, 4...Bit, 5...
Drill operation switch, 7... Air supply source, 8...
Air passage, 9...Solenoid valve.
Claims (1)
ト内部にエア供給源から冷却用エアを供給するビ
ツト冷却装置において、上記エア供給源から上記
ビツトの内部に通じるエア通路に電磁弁を設け、
該電磁弁をドリル作動スイツチと連動させること
を特徴とする電動ドリルのビツト冷却装置。 In a bit cooling device in which a bit of an electric drill is formed hollow and cooling air is supplied from an air supply source to the inside of the bit, a solenoid valve is provided in an air passage leading from the air supply source to the inside of the bit,
A bit cooling device for an electric drill, characterized in that the solenoid valve is linked with a drill operating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3383388U JPH01138640U (en) | 1988-03-15 | 1988-03-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3383388U JPH01138640U (en) | 1988-03-15 | 1988-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01138640U true JPH01138640U (en) | 1989-09-21 |
Family
ID=31260535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3383388U Pending JPH01138640U (en) | 1988-03-15 | 1988-03-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01138640U (en) |
-
1988
- 1988-03-15 JP JP3383388U patent/JPH01138640U/ja active Pending