JPH03111700U - - Google Patents
Info
- Publication number
- JPH03111700U JPH03111700U JP1874890U JP1874890U JPH03111700U JP H03111700 U JPH03111700 U JP H03111700U JP 1874890 U JP1874890 U JP 1874890U JP 1874890 U JP1874890 U JP 1874890U JP H03111700 U JPH03111700 U JP H03111700U
- Authority
- JP
- Japan
- Prior art keywords
- length
- shoring
- hole
- rock bolt
- 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.)
- Pending
Links
- 239000011435 rock Substances 0.000 claims description 3
Landscapes
- Securing Of Glass Panes Or The Like (AREA)
Description
第１図は本考案の一実施例に係る支保工用ロツ
クボルトの側面図、第２図は第１図の支保工用ロ
ツクボルトの正面図、である。 １０……支保工用ロツクボルト、１２……穴、
１４……ネジ。
クボルトの側面図、第２図は第１図の支保工用ロ
ツクボルトの正面図、である。 １０……支保工用ロツクボルト、１２……穴、
１４……ネジ。
Claims (1)
- 中心部に軸方向に貫通した穴を有し、両端部の
外周に全長の1/10以上の長さのネジを有する支保
工用ロツクボルト。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1874890U JPH03111700U (ja) | 1990-02-28 | 1990-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1874890U JPH03111700U (ja) | 1990-02-28 | 1990-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03111700U true JPH03111700U (ja) | 1991-11-15 |
Family
ID=31521893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1874890U Pending JPH03111700U (ja) | 1990-02-28 | 1990-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03111700U (ja) |
-
1990
- 1990-02-28 JP JP1874890U patent/JPH03111700U/ja active Pending