JPH044987U - - Google Patents
Info
- Publication number
- JPH044987U JPH044987U JP4412290U JP4412290U JPH044987U JP H044987 U JPH044987 U JP H044987U JP 4412290 U JP4412290 U JP 4412290U JP 4412290 U JP4412290 U JP 4412290U JP H044987 U JPH044987 U JP H044987U
- Authority
- JP
- Japan
- Prior art keywords
- casing
- screw
- cut
- blades
- screws
- 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.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案を適用したケーシングスクリユ
ーの一例を示す正面図、第２図は第１図のＡ部の
拡大図、第３図は第２図の−線視断面図、第
４図は第２図の分解した正面図、第５図は従来の
ケーシングスクリユーの正面図、第６図は第５図
のＢ部の拡大図である。
１，１０……ケーシングスクリユー、２……駆
動部、３……掘削ヘツド、５，１２……スクリユ
ー羽根、１１……ケーシング、１３……切断縁、
１４……端面、１５……ボルト。
Fig. 1 is a front view showing an example of a casing screw to which the present invention is applied, Fig. 2 is an enlarged view of section A in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 2 is an exploded front view of FIG. 2, FIG. 5 is a front view of a conventional casing screw, and FIG. 6 is an enlarged view of section B in FIG. 5. DESCRIPTION OF SYMBOLS 1, 10... Casing screw, 2... Drive part, 3... Excavation head, 5, 12... Screw blade, 11... Casing, 13... Cutting edge,
14... End face, 15... Bolt.
Claims (1)
ー羽根を有するケーシングスクリユーにおいて、
連結すべきケーシングスクリユーの各接続端部の
ケーシングをスクリユー羽根の１ピツチ分だけ軸
方向に切断してその切断縁の基部から１周回する
スクリユー羽根にそつてケーシングを切除し、前
記切断縁およびスクリユー羽根の端面を当接させ
てそのスクリユー羽根をボルトで締着することに
よりケーシングスクリユーを接続するようにした
ことを特徴とするケーシングスクリユーの継手構
造。 In a casing screw that has continuous screw blades on the outer periphery of a cylindrical casing,
The casing at each connecting end of the casing screws to be connected is cut in the axial direction by one pitch of the screw blade, and the casing is cut along the screw blade that goes around once from the base of the cut edge, and the cut edge and A casing screw joint structure characterized in that the casing screws are connected by bringing the end faces of the screw blades into contact and tightening the screw blades with bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4412290U JPH0735910Y2 (en) | 1990-04-25 | 1990-04-25 | Casing screw joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4412290U JPH0735910Y2 (en) | 1990-04-25 | 1990-04-25 | Casing screw joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044987U true JPH044987U (en) | 1992-01-17 |
| JPH0735910Y2 JPH0735910Y2 (en) | 1995-08-16 |
Family
ID=31557140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4412290U Expired - Fee Related JPH0735910Y2 (en) | 1990-04-25 | 1990-04-25 | Casing screw joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735910Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS518321U (en) * | 1974-07-01 | 1976-01-21 |
-
1990
- 1990-04-25 JP JP4412290U patent/JPH0735910Y2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS518321U (en) * | 1974-07-01 | 1976-01-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0735910Y2 (en) | 1995-08-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |